Patent Publication Number: US-2013235538-A1

Title: Electronic apparatus

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is based upon and claims the benefit of priority from prior Japanese Patent Application No. 2012-052972, filed Mar. 9, 2012, the entire contents of which are incorporated herein by reference. 
     FIELD 
     Embodiments described herein relate generally to an electronic apparatus. 
     BACKGROUND 
     An electronic apparatus such as a television receiver has an operation portion, for example, a button. The button is exposed through an opening provided in a housing. A structure to inhibit water infiltration may be provided around the opening. 
     There is still room for improvement in such an electronic apparatus. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       A general architecture that implements the various features of the embodiments will now be described with reference to the drawings. The drawings and the associated descriptions are provided to illustrate the embodiments and not to limit the scope of the invention. 
         FIG. 1  is an exemplary perspective view showing a television receiver according to a first embodiment; 
         FIG. 2  is an exemplary sectional view showing a part of a television body according to the first embodiment along the line F 2 -F 2  of  FIG. 1 ; 
         FIG. 3  is an exemplary plan view showing parts around the sidewall of the television body according to the first embodiment; 
         FIG. 4  is an exemplary perspective view showing the parts around the sidewall according to the first embodiment from the inside of a housing; 
         FIG. 5  is an exemplary perspective view showing how to attach a support member according to the first embodiment; 
         FIG. 6  is an exemplary perspective view showing how to attach a support member according to a second embodiment; 
         FIG. 7  is an exemplary sectional view showing how to attach a support member according to a third embodiment; 
         FIG. 8  is an exemplary sectional view showing how to attach a support member according to a fourth embodiment; 
         FIG. 9  is an exemplary exploded perspective view showing a slate computer according to a fifth embodiment; 
         FIG. 10  is an exemplary perspective view showing a part of the slate computer according to the fifth embodiment from a side opposite to the side shown in  FIG. 9 ; 
         FIG. 11  is an exemplary front view showing a television receiver according to a sixth embodiment; 
         FIG. 12  is an exemplary perspective view showing a display unit shown in  FIG. 11 ; 
         FIG. 13  is an exemplary exploded perspective view showing the display unit shown in  FIG. 11 ; 
         FIG. 14  is an exemplary perspective view showing a sealing member shown in  FIG. 13 ; 
         FIG. 15  is an exemplary sectional view of the display unit shown in  FIG. 11 ; 
         FIG. 16  is an exemplary sectional view of the display unit shown in  FIG. 11 ; 
         FIG. 17  is an exemplary plan view showing the inner surface of a base shown in  FIG. 13 ; 
         FIG. 18  is an exemplary enlarged plan view showing a part of the inner surface of the base shown in  FIG. 17 ; 
         FIG. 19  is an exemplary perspective view showing the inner surface of a mask shown in  FIG. 13 ; 
         FIG. 20  is an exemplary enlarged perspective view showing a part of the inner surface of the mask shown in  FIG. 19 ; 
         FIG. 21  is an exemplary exploded perspective view showing the display unit shown in  FIG. 11 ; 
         FIG. 22  is an exemplary perspective view showing an attachment structure of a speaker module shown in  FIG. 21 ; 
         FIG. 23  is an exemplary sectional view showing the attachment structure of the speaker module shown in  FIG. 21 ; 
         FIG. 24  is an exemplary plan view showing the attachment structure of the speaker module shown in  FIG. 21 ; 
         FIG. 25  is an exemplary perspective view showing a first position of the speaker module shown in  FIG. 21 ; 
         FIG. 26  is an exemplary perspective view showing a second position of the speaker module shown in  FIG. 21 ; 
         FIG. 27  is an exemplary perspective view showing the speaker module shown in  FIG. 21 ; 
         FIG. 28  is an exemplary chart showing the flow of attaching the speaker module shown in  FIG. 21 ; 
         FIG. 29  is an exemplary sectional view showing an attachment structure according to the sixth embodiment; 
         FIG. 30  is an exemplary perspective view showing an electronic apparatus to which the structure according to the sixth embodiment is applicable; 
         FIG. 31  is an exemplary sectional view showing a first position of a speaker module according to a seventh embodiment; 
         FIG. 32  is an exemplary sectional view showing a second position of the speaker module according to the seventh embodiment; 
         FIG. 33  is an exemplary sectional view showing a first position of a speaker module according to an eighth embodiment; 
         FIG. 34  is an exemplary sectional view showing a second position of the speaker module according to the eighth embodiment; 
         FIG. 35  is an exemplary plan view showing an attachment structure of a speaker module according to a ninth embodiment; and 
         FIG. 36  is an exemplary sectional view showing an attachment structure of a press component according to a tenth embodiment. 
     
    
    
     DETAILED DESCRIPTION 
     Various embodiments will be described hereinafter with reference to the accompanying drawings. 
     In general, according to one embodiment, an electronic apparatus includes a housing, a substrate in the housing, a first member, a second member and an electronic component. The housing includes a wall portion including an opening. The first member is at least partly between the wall portion and the substrate. The second member covers the opening and is pressed to the wall portion by the first member, at least a part of the second member configured to elastically displace. The electronic component on the substrate is configured to be pushed by the displaced part of the second member. 
     A first embodiment is described below with reference to  FIG. 1  to  FIG. 5 . In the present specification, the proximal side (i.e., user side) is defined as the forward direction, the distal side of the user is defined as the backward direction, the left side of the user is defined as the leftward direction, the right side of the user is defined as the rightward direction, the upper side of the user is defined as the upward direction, and the lower side of the user is defined as the downward direction. Moreover, each element that can be expressed in more than one way may be provided with one or more other examples of expressions. However, this does not deny that an element which is not provided with other expressions may be expressed in different ways, and does not restrict other ways of expressions that are not shown by way of example. 
       FIG. 1  is an exemplary perspective view showing a television receiver (hereinafter referred to as a “television”)  10 . The television  10  is an example of an electronic apparatus. As shown in  FIG. 1 , the television  10  comprises a television body (television, television receiver, body, display device)  12 , and a stand  13 . The stand  13  is rotatably coupled to the television body  12 . The stand  13  is mounted on a mounting surface (external surface, plane surface, surface) of, for example, a television stand, and supports the television body  12 . 
     The television body  12  comprises a housing (cabinet, external part, wall)  15 , and a display module (display device, display unit, electronic component, component)  16 . The display module  16  is, for example, a liquid crystal display. The display module  16  is not limited thereto, and may be a plasma display or an organic electroluminescence display. The display module  16  is housed in the housing  15 . 
     The housing  15  has a front surface  21 , and a side surface (outer surface, surface, sidewall, wall portion, wall)  22 . The side surface  22  is located on the right side of the user. A rectangular display opening  26  is provided in the front surface  21 . The display opening  26  exposes the display surface of the display module  16  on which images are displayed. 
     The side surface  22  is provided to intersect with the front surface  21 . The side surface  22  is partly inclined backward from the front surface  21  to approach the center of the television body  12 . An interface unit  27  is provided in the side surface  22 . The interface unit  27  is formed to project from the side surface  22 , and has a sidewall (outer surface, surface, wall portion, wall)  28  which intersects substantially at right angles with the front surface  21 . The sidewall  28  is an example of a wall portion. 
     In the sidewall  28 , there are provided a plurality of buttons (switches, components, members, input portions)  31  such as a power button, a channel switch button, and a volume control button, and there are also provided a card aperture  32 , and a plurality of terminal openings  33 . The buttons  31  are examples of an operation portion and a third member. The card aperture  32  is an opening for inserting a card such as a B-CAS card. The terminal openings  33  are openings for inserting, for example, a USB terminal and an HDMI terminal. 
     The housing  15  further has a back surface located opposite to the front surface  21 , and a lower surface provided to intersect with the front surface  21 . For example, a plurality of ventilation holes are provided in the back surface, and the stand  13  is fixed to the back surface. For example, a plurality of speaker openings for producing a sound are provided in the lower surface. 
       FIG. 2  is an exemplary sectional view showing a part of the television body  12  along the line F 2 -F 2  of  FIG. 1 . As shown in  FIG. 2 , the housing  15  has a front cover  35  and a rear cover  36 . The front cover  35  and the rear cover  36  are each made of, for example, a resin. The front cover  35  constitutes the front surface  21  of the housing  15 . The rear cover  36  constitutes the side surface  22 , the back surface, and the lower surface of the housing  15 . 
     A translucent panel  37  is attached to the front surface  21  of the housing  15 . The display opening  26  is covered by the panel  37 . The display module  16  is exposed to the outside through the panel  37 . 
     A main substrate  38  and a module substrate (circuit board, wiring board, component, unit)  39  are housed in the housing  15 . The module substrate  39  is an example of a substrate. 
     The main substrate  38  is, for example, a rectangular printed circuit board. A plurality of electronic components such as an LSI for image processing are mounted on the main substrate  38 . The main substrate  38  is attached to the display module  16 , for example, via spacers. 
     The module substrate  39  is, for example, a printed circuit board. The module substrate  39  is disposed to intersect substantially at right angles with the sidewall  28  and to face the front surface  21 . The module substrate  39  is formed into a rectangular shape smaller than the main substrate  38 . The module substrate  39  is closer to the sidewall  28  than the main substrate  38 . The module substrate  39  is connected to the main substrate  38 , for example, by a cable. 
       FIG. 3  is an exemplary plan view showing parts around the sidewall  28 . As indicated by a two-dot chain line in  FIG. 3 , for example, a plurality of switches (components)  41 A and  41 B, a card slot, and a plurality of connectors are mounted on the module substrate  39 . The switch  41 A is an example of a first electronic component. The two switches  41 B are an example of a second electronic component. 
     The card slot is open to the outside via the card aperture  32 , and a card such as a B-CAS card is inserted into the card slot. The connectors are open to the outside via the terminal openings  33 , and, for example, a USB terminal and an HDMI terminal are inserted into the connectors. 
     The switches  41 A and  41 B are arranged to correspond to the buttons  31 . As shown in  FIG. 2 , each of the switches  41 A and  41 B comprises a component body (housing, case, fixed portion)  42 , and a push portion (end, operated portion, pressure sensor, component)  43 . The component body  42  is fixed to the module substrate  39 , for example, by soldering. An opening facing the sidewall  28  is provided in the component body  42 . 
     The push portion  43  projects toward the sidewall  28  from the opening of the component body  42 . The push portion  43  elastically moves into the component body  42  in response to external pressure. The push portion  43  is partly pushed into the component body  42 , and the switches  41 A and  41 B are thereby operated. In other words, the switches  41 A and  41 B are operated in response to the pressure on the push portion  43 . If the press force on the push portion  43  is removed, the push portion  43  elastically moves back to a predetermined position. 
     The interface unit  27  has the sidewall  28 , and a bottom wall (wall portion, wall, bottom surface, fixing surface, attachment surface)  46  extending in a direction intersecting substantially at right angles with the sidewall  28 . The bottom wall  46  faces the front cover  35 . The bottom wall  46  is disposed to face at least a part of the module substrate  39 . 
     A plurality of openings (apertures, bores, holes, insertion portions, exposing portions)  47 A and  47 B are provided in the sidewall  28 . The opening  47 A is an example of a first opening. The opening  47 B is an example of a second opening. The openings  47 A and  47 B are formed to respectively correspond to the shapes of the buttons  31 . For example, the opening  47 A corresponding to the button  31  which is the power button is formed into a substantially quadrate shape. The opening  47 B corresponding to the button  31  which is the channel switch button or the volume control button is formed into a substantially rectangular shape. The corresponding buttons  31  are respectively inserted through the openings  47 A and  47 B, and are exposed to the outside of the housing  15 . 
     Each of the buttons  31  has an exposed portion (operation portion, insertion portion, portion)  51 , a flange portion (engagement portion, latch portion)  52 , and a protrusion (press portion, projecting portion, fit portion, operation portion, portion)  53 . The exposed portion  51  is inserted through the corresponding opening  47 A or  47 B, and is exposed to the outside of the housing  15 . The flange portion  52  is provided at the end of the exposed portion  51  located inside the housing  15 , and faces the sidewall  28  from the inside of the housing  15 . The flange portion  52  is locked to the sidewall  28  from the inside of the housing  15 . The protrusion  53  projects into the housing  15  from the exposed portion  51 . The tip of the protrusion  53  faces the tip of the push portion  43  of the corresponding switch  41 A or  41 B. The tip of the protrusion  53  is farther from the sidewall  28  than the flange portion  52 . 
     A plurality of keypads (packing, closing members, members)  56 A and  56 B are disposed in the housing  15  to correspond to the buttons  31 . The keypad  56 A is an example of a water infiltration inhibitor and a second member. The keypad  56 B is an example of a fourth member. The keypads  56 A and  56 B are made of, for example, elastic silicon rubber. The keypads  56 A and  56 B are not limited thereto, and may be made of elastomer or other synthetic rubber. Each of the keypads  56 A and  56 B has a contact portion  57  and a displacement portion  58  that are formed integrally with each other. 
     The contact portion  57  is formed to surround the edge of the flange portion  52  of the button  31  and to cover the end of the exposed portion  51  which is provided with the flange portion  52 . The contact portion  57  watertightly abuts on the sidewall  28  around the corresponding opening  47 A or  47 B. The contact portion  57  does not exclusively abut on the sidewall  28  in this way, and may abut on the sidewall  28 , for example, in a manner weaker than the watertight condition. The contact portion  57  covers each of the openings  47 A and  47 B through which the buttons  31  are inserted. In this way, as shown in  FIG. 3 , the keypad  56 A closes the opening  47 A, and the keypad  56 B closes the opening  47 B. The contact portion  57  may cover the openings  47 A and  47 B. 
     As shown in  FIG. 2 , a portion  57   a  of the contact portion  57  covering the end of the exposed portion  51  is formed to be thinner than the other portion  57   b  of the contact portion  57  that surrounds the edge of the flange portion  52 . That is, the portion  57   a  covering the end of the exposed portion  51  is more easily deformed than the portion  57   b  surrounding the edge of the flange portion  52 . 
     The displacement portion  58  is provided to be surrounded by the portion  57   a  of the contact portion  57 . The displacement portion  58  projects into the housing  15  from the portion  57   a  of the contact portion  57 . The displacement portion  58  is provided with a recess  58   a  facing the button  31 . A part of the protrusion  53  of the button  31  is fitted in the recess  58   a . The protrusion  53  of the button  31  may be fitted in the recess  58   a  to be in contact with the side surface of the recess  58   a , or may be contained in the recess  58   a  via a clearance between the protrusion  53  and the side surface of the recess  58   a.    
     The displacement portion  58  is formed to be thicker than the portion  57   a  of the contact portion  57 . If the displacement portion  58  is pressed by the protrusion  53  of the button  31 , the displacement portion  58  is elastically displaced. That is, the displacement portion  58  is pressed by the protrusion  53 , and the portion  57   a  of the contact portion  57  surrounding the displacement portion  58  is thereby elastically deformed. As a result, the displacement portion  58  is displaced in a direction in which the displacement portion  58  is pressed by the protrusion  53 . Thus, the displacement portion  58  is an example of a part of a displaceable second member. 
     The displacement portion  58  is located between the protrusion  53  of the button  31  and the push portion  43  of the corresponding switch  41 A or  41 B. In other words, the protrusion  53  of the button  31  abuts on (faces) the displacement portion  58 . Therefore, if the button  31  is pressed, for example, by the user, the protrusion  53  displaces the displacement portion  58 , and the displacement portion  58  pushes the push portion  43 . That is, if the button  31  is pressed, the switch  41 A or  41 B is operated in response to the pressure from the displaced displacement portion  58 . 
       FIG. 4  is an exemplary perspective view showing the parts around the sidewall  28  from the inside of the housing  15 . As shown in  FIG. 4 , a support member (support portion, contact portion, press portion, component, member, part)  61  is disposed inside the housing  15 . The support member  61  is an example of a first member. The support member  61  is formed, for example, by a metal plate bent into an L-shape. The support member  61  has a press portion (support portion, contact portion, wall portion, part)  62  and an attachment portion (fixing portion, part)  63  that are formed into a rectangular shape. The press portion  62  is an example of a first portion. The attachment portion  63  is an example of a second portion. 
     As shown in  FIG. 2 , at least a part of the press portion  62  is located between the sidewall  28  and the module substrate  39 , and faces the sidewall  28 . The press portion  62  abuts on (faces) the keypads  56 A and  56 B, and is in contact with the portion  57   b  of the contact portion  57 . Therefore, as shown in  FIG. 3 , the contact portions  57  of the keypads  56 A and  56 B intervene between the sidewall  28  and the press portion  62 . In other words, the press portion  62  is closer to the module substrate  39  than the contact portions  57  of the keypads  56 A and  56 B. 
     As shown in  FIG. 2 , the press portion  62  is provided with a plurality of insertion openings (apertures, holes, cutouts, recesses)  65  through which the displacement portions  58  of the keypads  56 A and  56 B are inserted, respectively. The insertion opening  65  is an example of an insertion portion. As shown in  FIG. 4 , the insertion openings  65  are arranged in the longitudinal direction of the press portion  62 . Each of the insertion openings  65  extends toward the attachment portion  63  from a part corresponding to the displacement portion  58 . The displacement portion  58  is configured to be displaced in the insertion opening  65  through which the displacement portion  58  is inserted. 
     The attachment portion  63  intersects substantially at right angles with the press portion  62 , and extends in a direction to depart from the sidewall  28 . The attachment portion  63  abuts on the bottom wall  46 . A plurality of cutouts  66  are provided in the attachment portion  63 . The cutouts  66  are continuous with the insertion openings  65 , respectively. As shown in  FIG. 2 , an edge  66   a  of the cutout  66  facing the sidewall  28  is farther from the sidewall  28  than the tip of the displacement portion  58  of the keypad  56 . 
     As shown in  FIG. 4 , an extending portion  68  extends from the attachment portion  63 . The extending portion  68  extends in the longitudinal direction of the attachment portion  63  from one end of the longitudinal direction of the attachment portion  63 . A circular pivot bore (engaging bore, aperture, recess)  71  is provided in the extending portion  68 . The pivot bore  71  is an example of a bore. As shown in  FIG. 3 , the pivot bore  71  is farther from the center of the attachment portion  63  than one end  62   a  of the press portion  62  which is close to the extending portion  68 . 
     A plurality of fixing bores  72  are provided in the attachment portion  63 . The fixing bores  72  are arranged in the longitudinal direction of the attachment portion  63 . Each of the fixing bores  72  is formed into, for example, an elliptical shape extending toward the press portion  62 . As shown in  FIG. 4 , the fixing bores  72  may be continuous with the cutouts  66 , or may be cutouts. The fixing bore  72  closest to the extending portion  68  is formed into an elliptical shape shorter than the fixing bore  72  farthest from the extending portion  68 . 
     An engagement portion (hook portion, temporary fastening portion, guide portion)  74  is provided in the bottom wall  46 . The engagement portion  74  is an example of an engaging portion. The engagement portion  74  has a plurality of protruding portions (pins, projections, insertion portions)  76  and  77 . Each of the protruding portions  76  and  77  protrudes from the bottom wall  46 . One protruding portion  76  is inserted through the pivot bore  71 . The protruding portions  77  are inserted through the fixing bores  72 . In other words, the protruding portions  76  and  77  engage with the pivot bore  71  and the fixing bores  72 . 
     The protruding portions  76  and  77  inserted through the pivot bore  71  and the fixing bores  72  are welded to the attachment portion  63 . The attachment portion  63  is thereby fixed to the bottom wall  46 . The attachment portion  63  is not exclusively fixed in this way, and may be fixed to the bottom wall  46 , for example, by screws. 
     As shown in  FIG. 4 , a fixing portion (attachment portion, press portion, part)  81  is provided in the sidewall  28 . The fixing portion  81  has a first fit portion  82  and a second fit portion  83 . The first and second fit portions  82  and  83  are an example of a pair of fit portions. 
     As shown in  FIG. 3 , the first fit portion  82  has a base portion  85  and a claw portion  86 . The base portion  85  projects into the housing  15  from the sidewall  28 . The base portion  85  abuts on one end  62   a  of the press portion  62 . The claw portion  86  extends from the tip of the base portion  85  toward the second fit portion  83  along the sidewall  28 . The contact portion  57  of the keypad  56 A and the press portion  62  of the support member  61  are held between the sidewall  28  and the claw portion  86 . 
     The second fit portion  83  has a base portion  87  and a claw portion  88 . The base portion  87  projects into the housing  15  from the sidewall  28 . The base portion  87  abuts on the other end  62   b  of the press portion  62 . The base portion  87  is elastically deformable. The claw portion  88  extends from the tip of the base portion  87  toward the first fit portion  82  along the sidewall  28 . The contact portion  57  of the keypad  56 B and the press portion  62  of the support member  61  are held between the sidewall  28  and the claw portion  88 . 
     The press portion  62  is held between the first and second fit portions  82  and  83 . The contact portions  57  of the keypads  56 A and  56 B and the press portion  62  of the support member  61  are held between the sidewall  28  and the claw portions  86  and  88 . Thus, the fixing portion  81  fixes the support member  61 , and the press portion  62  presses the contact portions  57  of the keypads  56 A and  56 B to the sidewall  28 . 
     An example of how to attach the support member  61  is described below with reference to  FIG. 5 . The support member  61  is not exclusively attached in the following way.  FIG. 5  is an exemplary perspective view showing how to attach the support member  61 . 
     First, the corresponding keypads  56 A and  56 B are respectively attached to the buttons  31 . That is, the protrusions  53  of the buttons  31  are inserted into the recesses  58   a  of the displacement portions  58 , and the edge of the flange portion  52  is surrounded by the portion  57   b  of the contact portion  57 . 
     The buttons  31  are then attached to the openings  47 A and  47 B from the inside of the housing  15 , respectively. When the exposed portions  51  of the buttons  31  are inserted through the openings  47 A and  47 B, the flange portion  52  collides with the sidewall  28 . The contact portions  57  of the keypads  56 A and  56 B attached to the buttons  31  abut on the sidewall  28 . 
     The contact portion  57  of the keypad  56 A is located between the sidewall  28  and the claw portion  86  of the first fit portion  82 . The contact portion  57  of the keypad  56 B is located between the sidewall  28  and the claw portion  88  of the second fit portion  83 . Thus, the keypads  56 A and  56 B are temporarily fastened by the claw portions  86  and  88 . 
     The support member  61  is then attached to the housing  15 . As indicated by an arrow D in  FIG. 5 , the support member  61  is moved substantially perpendicularly to the bottom wall  46 . In, other words, the support member  61  is moved closer to the bottom wall  46  from the direction in which the rear cover  36  is open. As a result, the protruding portions  76  and  77  are inserted into the pivot bore  71  and the fixing bores  72  of the support member  61 , and the attachment portion  63  collides with the bottom wall  46 . At the same time, one end  62   a  of the press portion  62  is engaged with the first fit portion  82 . That is, one end  62   a  of the press portion  62  is inserted into the space between the sidewall  28  and the claw portion  86 . 
     On the other hand, the other end  62   b  of the press portion  62  is removed from the second fit portion  83 . In other words, the support member  61  is moved closer to the bottom wall  46  at a tilt to the sidewall  28 . Therefore, a clearance is made between the press portion  62  and the keypads  56 A and  56 B. 
     As the cutouts  66  continuous with the insertion openings  65  are provided in the attachment portion  63 , the moving support member  61  avoids the displacement portions  58  of the keypads  56 A and  56 B. Thus, the support member  61  can be easily moved closer to the bottom wall  46 . 
     As indicated by an arrow T 1  in  FIG. 5 , the support member  61  is then rotated toward the sidewall  28  on the protruding portion  76  inserted through the pivot bore  71 . As the fixing bores  72  through which the protruding portions  77  are inserted are formed into an elliptical shape extending toward the press portion  62 , the support member  61  is able to rotate. The direction in which the support member  61  rotates is the direction in which the support member  61  intersects with the sidewall  28 . That is, the engagement portion  74  engages with the support member  61  rotatably in the direction in which the support member  61  intersects with the sidewall  28 . 
     If the support member  61  is rotated, the end  62   b  of the press portion  62  climbs over the second fit portion  83 . For example, the end  62   b  of the press portion  62  presses the second fit portion  83 , and the base portion  87  of the second fit portion  83  is elastically deformed accordingly. The second fit portion  83  having the elastically deformed base portion  87  avoids the press portion  62 , and the end  62   b  of the rotating press portion  62  collides with the keypad  56 B. As a result, the end  62   b  of the press portion  62  is held between the contact portion  57  of the keypad  56 B and the claw portion  88  of the second fit portion  83 . 
     The end  62   b  of the press portion  62  is fitted into the second fit portion  83  as described above, and the press portion  62  is thereby fixed to the fixing portion  81 . As a result, the press portion  62  presses the contact portions  57  of the keypads  56 A and  56 B to the sidewall  28 . 
     The protruding portions  76  and  77  respectively inserted through the pivot bore  71  and the fixing bore  72  are then welded to the attachment portion  63 . As a result, the attachment portion  63  is fixed to the bottom wall  46 , and the support member  61  is firmly fixed to the housing  15 . 
     According to the television  10  having the configuration described above, the keypads  56 A and  56 B covering the openings  47 A and  47 B are pressed to the sidewall  28  by the support member  61 . This can inhibit the infiltration of a liquid such as water or dust into the housing  15 . 
     As the support member  61  presses the keypads  56 A and  56 B, the position of the module substrate  39  on which the switches  41 A and  41 B are mounted is free relative to the keypads  56 A and  56 B. Thus, it is no longer necessary to hold the keypads  56 A and  56 B with a substrate such as the module substrate  39  or to divide the housing  15  at the position where the openings  47 A and  47 B are provided. Accordingly, the degree of freedom in the designing of the television  10  is improved. 
     If the button  31  is pressed by the user, the press force on the button  31  acts on the support member  61 . This press force is received by the support member  61 , so that damage caused to the module substrate  39  by an external force can be inhibited. 
     The module substrate  39  is disposed to intersect with the sidewall  28 . In other words, the module substrate  39  faces the bottom wall  46 . Thus, the module substrate  39  can be attached to the housing  15  substantially in parallel with the bottom wall  46 , and the television  10  is more easily assembled. 
     The insertion openings  65  through which the displacement portions  58  of the keypads  56 A and  56 B are partly inserted are provided in the press portion  62 . Therefore, the displacement portions  58  can press the switches  41 A and  41 B even if the press portion  62  intervenes between the switches  41 A and  41 B mounted on the module substrate  39  and the contact portions  57  of the keypads  56 A and  56 B. 
     The first and second fit portions  82  and  83  of the fixing portion  81  each have the base portions  85  and  87  and the claw portions  86  and  88 . Thus, as screws are needed to fix the support member  61 , the number of components of the television  10  and its manufacturing costs can be reduced. Moreover, the support member  61  can be attached to a small space, so that the degree of freedom in the designing is improved, and the television  10  is more easily assembled. 
     The engagement portion  74  engages with the support member  61  movably in a direction in which the support member  61  intersects with the sidewall  28 . This makes it easier to attach the support member  61 . Moreover, the buckling of the keypads  56 A and  56 B can be inhibited during the attachment of the support member  61 . 
     More specifically, if the support member  61  is in contact with the keypads  56 A and  56 B during the movement of the support member  61  substantially perpendicular to the bottom wall  46 , the keypads  56 A and  56 B are pressed or pulled by the support member  61 . However, the support member  61  according to the present embodiment can be moved closer to the bottom wall  46  to make a clearance between the press portion  62  and the keypads  56 A and  56 B, and then rotated and fixed to the fixing portion  81 . This can inhibit the pressing or pulling of the keypads  56 A and  56 B by the support member  61 . Therefore, the buckling of the keypads  56 A and  56 B can be inhibited. 
     The pivot bore  71  is provided in the extending portion  68  of the support member  61 . The support member  61  is configured to rotate on the protruding portion  76  inserted through the pivot bore  71 . This can inhibit shifting during the attachment of the support member  61  to the fixing portion  81 . 
     One support member  61  fixed to the fixing portion  81  presses the keypads  56 A and  56 B to the sidewall  28 . Thus, the number of components and processes can be reduced, and the manufacturing costs can be reduced. 
     The openings  47 A and  47 B are provided in the sidewall  28 . Therefore, according to the television  10 , the buttons  31  with inhibited water infiltration can be provided even in the sidewall of the housing  15 . The openings  47 A and  47 B are not exclusively provided in the sidewall  28 , and may be provided in, for example, the bottom wall  46 . In this case, the press portion  62  of the support member  61  faces the bottom wall  46 , and the attachment portion  63  is attached to, for example, the sidewall  28 . That is, the arrangement of the openings  47 A and  47 B is free, and the degree of freedom in the designing of the television  10  is improved. 
     When the buttons  31  are attached to the openings  47 A and  47 B, the keypads  56 A and  56 B are temporarily fastened by the claw portions  86  and  88  of the first and second fit portions  82  and  83 . This makes it easier to assemble the television  10 . 
     Referring now to  FIG. 6 , a second embodiment is described. In embodiments disclosed below, components having the same functions as those in the television  10  according to the first embodiment are provided with the same reference numerals. The explanation of these components may be partly or entirely omitted. 
       FIG. 6  is an exemplary perspective view showing how to attach a support member  61  according to the second embodiment. As shown in  FIG. 6 , the support member  61  according to the second embodiment is formed by a flat metal plate. A recess (cutout, groove, valley, slit)  91  is formed at the lower end of the support member  61  facing the bottom wall  46 . 
     A protrusion (rib, protruding portion)  92  corresponding to the recess  91  is provided in the bottom wall  46 . The protrusion  92  is an example of an engagement portion. The protrusion  92  is a rib provided to extend from the bottom wall  46  to a sidewall  28 . The protrusion  92  is engaged with the recess  91  of the support member  61  so that the support member  61  can rotate in a direction intersecting with the sidewall  28 . 
     The support member  61  is attached to a fixing portion  81 , for example, in the following way. First, the protrusion  92  is engaged with the recess  91  of the support member  61 , and one end  62   a  of a press portion  62  is fitted into a first fit portion  82 . The support member  61  is then rotated on the end  62   a  of the press portion  62  fitted in the first fit portion  82 . The other end  62   b  of the press portion  62  climbs over a second fit portion  83 , and is then held between a claw portion  88  of the second fit portion  83  and a contact portion  57  of a keypad  56 B. As a result, the support member  61  is fixed to the fixing portion  81 . 
     According to a television  10  having the configuration described above, the keypads  56 A and  56 B can be pressed to the sidewall  28  by the support member  61  having a flat plate shape. Thus, the support member  61  can be reduced in size, and the material cost for the television  10  can be reduced. Moreover, a wide space can be kept in a housing  15 , and the degree of freedom in the designing is improved. 
     Referring now to  FIG. 7 , a third embodiment is described.  FIG. 7  is an exemplary sectional view showing how to attach a support member  61  according to the third embodiment. As shown in  FIG. 7 , a pair of engagement portions  74  are provided in a bottom wall  46 . The pair of engagement portions  74  each have a base portion  95  projecting from the bottom wall  46 , and a claw portion  96  extending from the base portion  95  to a sidewall  28 . The pair of engagement portions  74  abut on both longitudinal ends of an attachment portion  63  of the support member  61 . In other words, the attachment portion  63  is held between the pair of engagement portions  74 . 
     The attachment portion  63  of the support member  61  has a pair of pivots  97 . The pair of pivots  97  are provided, for example, at the end of the attachment portion  63  located apart from a press portion  62 . The pair of pivots  97  extend in the longitudinal direction of the attachment portion  63  from both longitudinal ends of the attachment portion  63 . The pivots  97  are engaged with the engagement portions  74 . 
     In the present embodiment, both base portions  85  and  87  of first and second fit portions  82  and  83  are elastically deformably formed. That is, the press portion  62  of the support member  61  can climb over a first fit portion  82 , and can also climb over a second fit portion  83 . 
     The support member  61  is attached to a fixing portion  81 , for example, in the following way. First, the pivots  97  of the attachment portion  63  are engaged with the engagement portions  74 . The support member  61  is then rotated on the pivots  97  as indicated by an arrow T 2  in  FIG. 7 . Both ends  62   a  and  62   b  of the press portion  62  of the support member  61  climb over the first and second fit portions  82  and  83 , respectively. As a result, one end  62   a  of the press portion  62  is held between a claw portion  86  of the first fit portion  82  and a contact portion  57  of a keypad  56 A. The other end  62   b  of the press portion  62  is also held between a claw portion  88  of the second fit portion  83  and a contact portion  57  of a keypad  56 B. Consequently, the support member  61  is fixed to the fixing portion  81 . 
     According to a television  10  having the configuration described above, the support member  61  is rotated on the pivots  97  of the attachment portion  63  engaged with the engagement portions  74  provided in the bottom wall  46 . Thus, the support member  61  can be engaged with the engagement portions  74  while the support member  61  is located apart from the keypads  56 A and  56 B. Therefore, the buckling of the keypads  56 A and  56 B due to the support member  61  can be inhibited. 
     Referring now to  FIG. 8 , a fourth embodiment is described.  FIG. 8  is an exemplary sectional view showing how to attach a support member  61  according to the fourth embodiment. As shown in  FIG. 8 , an engagement portion  74  is provided in a bottom wall  46 . The engagement portion  74  according to the fourth embodiment has a plurality of protruding portions  77 . As in the third embodiment, both base portions  85  and  87  of first and second fit portions  82  and  83  are elastically deformable in the present embodiment. 
     The support member  61  is attached to a fixing portion  81 , for example, in the following way. First, the support member  61  is moved substantially perpendicularly to the bottom wall  46  while the support member  61  is located apart from keypads  56 A and  56 B. As a result, the protruding portions  77  are inserted into fixing bores  72  of the support member  61 , and an attachment portion  63  contacts the bottom wall  46 . 
     As indicated by an arrow S in  FIG. 8 , the support member  61  is then moved in a direction intersecting substantially at right angles with a sidewall  28  along the elliptical fixing bores  72 . Both ends  62   a  and  62   b  of a press portion  62  of the support member  61  climb over the first and second fit portions  82  and  83 , respectively. As a result, one end  62   a  of the press portion  62  is held between a claw portion  86  of the first fit portion  82  and a contact portion  57  of a keypad  56 A. The other end  62   b  of the press portion  62  is also held between a claw portion  88  of the second fit portion  83  and a contact portion  57  of a keypad  56 B. Consequently, the support member  61  is fixed to the fixing portion  81 . 
     According to a television  10  having the configuration described above, the support member  61  is moved in a direction intersecting substantially at right angles with the sidewall  28 , and the support member  61  can be thereby fixed to the fixing portion  81 . This allows the television  10  to have a simpler configuration, and the manufacturing costs are reduced. 
     The support member  61  can be moved relative to the bottom wall  46  while the support member  61  is located apart from keypads  56 A and  56 B. Therefore, the buckling of the keypads  56 A and  56 B due to the support member  61  can be inhibited. 
     Referring now to  FIG. 9  and  FIG. 10 , a fifth embodiment is described.  FIG. 9  is an exemplary exploded perspective view showing a slate computer (personal computer, tablet PC)  101  according to the fifth embodiment.  FIG. 10  is an exemplary perspective view showing a part of the slate computer from a side opposite to the side shown in  FIG. 9 . The slate computer  101  is an example of an electronic apparatus. 
     As shown in  FIG. 9 , the slate computer  101  comprises a housing  15 . The housing  15  has a front cover  35  that constitutes a front surface  21  of the housing  15 , and a rear cover  36 . The rear cover  36  has a sidewall  28  that constitutes the side surface of the housing  15 , a bottom wall  46  that constitutes the back surface of the housing  15 , and the other sidewall  103  that constitutes the other side surface of the housing  15 . 
     As shown in  FIG. 10 , in the sidewall  28 , there are provided a plurality of buttons  31  such as a power button and a volume control button. As in the first embodiment, the buttons  31  are inserted through openings  47 A and  47 B provided in the sidewall  28 , and the openings  47 A and  47 B are closed by keypads  56 A and  56 B. The keypads  56 A and  56 B are pressed to the sidewall  28  by a press portion  62  of the support member  61 . 
     As shown in  FIG. 9 , the other sidewall  103  is located on the side opposite to the sidewall  28 . A plurality of openings  104  are provided in the other sidewall  103 . A plurality of speakers  105  are housed in the housing  15  to correspond to the openings  104 . The speakers  105  are in collision with the other sidewall  103  from the inside of the housing  15 , and close the corresponding openings  104 . 
     According to the slate computer  101  having the configuration described above, the keypads  56 A and  56 B covering the openings  47 A and  47 B are pressed to the sidewall  28  by the support member  61 , as in the first embodiment. This can inhibit the infiltration of a liquid such as water or dust into the housing  15 . 
     The position of a module substrate  39  on which switches  41 A and  41 B pushed by a displacement portion  58  of the keypads  56 A and  56 B are mounted is free relative to the keypads  56 A and  56 B. Thus, it is no longer necessary to hold the keypads  56 A and  56 B with a substrate such as the module substrate  39  or to divide the housing  15  at the position where the openings  47 A and  47 B are provided. Accordingly, the degree of freedom in the designing of the slate computer  101  is improved. 
     As described above, the electronic apparatus is not limited to the television  10  or the slate computer  101 , and may be a different kind of electronic apparatus such as a portable computer, a personal digital assistant (PDA), a cellular phone, or a smartphone. 
     Referring now to  FIG. 11  to  FIG. 28 , a sixth embodiment is described.  FIG. 11  to  FIG. 28  disclose a television receiver  201  according to the sixth embodiment. The television receiver  201  is an example of the “electronic apparatus”. The structures according to the present embodiment and the following embodiments are not limited to the television receiver, and may be widely applicable to various kinds of electronic apparatuses including a notebook type portable computer (notebook PC), a slate type portable computer (slate. PC, tablet), a mobile telephone (including a smartphone), and a game machine. 
     As shown in  FIG. 11 , the television receiver  201  has a display unit  202  (main unit), and a stand  203  (support portion) which supports the display unit  202 . The display unit  202  has a housing  204 . A display  205  and a circuit board  206  (see  FIG. 13 ) are housed in the housing  204 . 
     The display  205  has a first surface  205   a  (display surface) including a display screen  207 , and a second surface  205   b  (back surface) located on the side opposite to the first surface  205   a . A touch sensor (touch panel) is provided in the first surface  205   a . The touch sensor is an example of an input portion (input receiving portion, operation portion). 
     As shown in  FIG. 11  to  FIG. 13 , the housing  204  is formed into a flat box shape having a first wall  211  (rear wall), a second wall  212  (peripheral wall, sidewall), and a third wall  213  (front wall). The first wall  211  extends substantially parallel with (expands substantially parallel with) the display  205  and the circuit board  206 . The first wall  211  faces the second surface  205   b  of the display  205  and the circuit board  206 . 
     The third wall  213  is located on the side opposite to the first wall  211 . The third wall  213  extends substantially parallel with (expands substantially parallel with) the first wall  211 . The third wall  213  faces the first surface  205   a  of the display  205 . The display  205  is located between the first wall  211  and the third wall  213 . 
     The third wall  213  is provided with an opening  213   a  which exposes the display screen  207 . For example, a translucent panel  214  is provided in the third wall  213  (see  FIG. 15 ). The panel  214  is, for example, a glass member or a plastic member. The panel  214  is supported by the third wall  213 , and covers the opening  213   a . The display screen  207  is exposed to the outside through the panel  214 . 
     The second wall  212  extends in a direction intersecting with the first wall  211  and the third wall  213 . The second wall  212  extends in the thickness direction of the housing  204 , and ranges between the end (peripheral end, peripheral edge) of the first wall  211  and the end (peripheral end, peripheral edge) of the third wall  213 . The second wall  212  is provided, for example, all around the first wall  211  and the third wall  213 . The thickness direction of the housing  204  is the direction traveling from the first wall  211  to the third wall  213  (or from the third wall  213  to the first wall  211 ). 
     As shown in  FIG. 13  to  FIG. 15 , the third wall  213  is larger than the first wall  211 . Therefore, the second wall  212  is arc-shaped to link the end of the first wall  211  to the end of the third wall  213 . The second wall  212  has a curved surface (surface, outer surface) bulging out of the housing  204 . The second wall  212  expands out of the housing  204  from the first wall  211  toward the third wall  213 . 
     As shown in  FIG. 13 , the housing  204  has a base  215  (lower cover, first cover, first housing member, first member), and a mask  216  (upper cover, second cover, second housing member, second member). The base  215  includes the first wall  211  and the second wall  212 . The mask  216  includes the third wall  213 . The housing  204  is configured by attaching the mask  216  to the base  215 . 
     The base  215  is tray-shaped, and is open in a direction intersecting with the first wall  211  (in the thickness direction of the housing  204 , on the side opposite to the first wall  211 ). The inner peripheral surface (later-described inner surface  212   a ) of the second wall  212  defines an opening  215   a  which exposes the inside of the base  215  to the outside. 
     As shown in  FIG. 13 , in the assembly of the display unit  202 , the first wall  211  of the base  215  is placed on an external mounting surface (e.g., an assembly table), components are attached to the inside of the base  215 , and the mask  216  is attached to the base  215 . Therefore, the first wall  211  may be referred to as a “lower wall” or “bottom wall”. The third wall  213  may be referred to as an “upper wall”. Hereinafter, the first wall  211  is referred to as the bottom wall  211 , the second wall  212  is referred to as the sidewall  212 , and the third wall  213  is referred to as the upper wall  213 , for convenience of explanation. 
     The television receiver  201  according to the present embodiment is, for example, waterproof. Therefore, the television receiver  201  has various structures shown below to make it waterproof. These structures are not exclusively provided for waterproofing, and may be provided for other purposes. 
     (Sealing Structure of Housing) 
     First, a sealing structure of the housing  204  is described. As shown in  FIG. 13 , a sealing member  217  (elastic portion, elastic member, intervening member, closing member, packing, member, component) is provided between the base  215  and the mask  216 . One example of the sealing member  217  is a gasket (case gasket). The sealing member  217  is made of, for example, rubber. The sealing member  217  is held (compressed, deformed) between the base  215  and the mask  216 , and liquid-tightly closes the space between the base  215  and the mask  216 . 
     More specifically, as shown in  FIG. 13  to  FIG. 15 , the sidewall  212  of the housing  204  has the inner surface  212   a  (inner peripheral surface, first surface), an outer surface  212   b  (surface, outer peripheral surface, second surface), and an attachment surface  212   c  (connecting surface, support surface, third surface). The inner surface  212   a  is exposed inside the housing  204 . The outer surface  212   b  is located on the side opposite to the inner surface  212   a , and is exposed outside the housing  204 . 
     The attachment surface  212   c  extends in a direction intersecting with the inner surface  212   a  and the outer surface  212   b , and ranges between the inner surface  212   a  and the outer surface  212   b . The attachment surface  212   c  is substantially parallel with the bottom wall  211 . The attachment surface  212   c  faces the end (peripheral end, peripheral edge) of the mask  216 . That is, the attachment surface  212   c  faces the end of the mask  216  in a direction intersecting with (e.g., in a direction intersecting substantially at right angles with) the bottom wall  211 . The attachment surface  212   c  abuts on the end of the mask  216 , and supports the end of the mask  216 . 
     The attachment surface  212   c  is provided, for example, all around the base  215 . A groove  218  (attachment portion, support portion, holding portion, storing portion, engagement portion, recess) to which the sealing member  217  is attached is provided in the attachment surface  212   c . The groove  218  faces the end of the mask  216 , and is covered by the mask  216 . The groove  218  is provided, for example, all around the base  215 , and is formed into a looped shape (frame shape) along the peripheral end (peripheral edge) of the base  215 . The groove  218  is located outside the opening  215   a , and surrounds the opening  215   a.    
     As shown in  FIG. 15 , the groove  218  has a bottom surface  218   a  (support surface, attachment surface, far portion, first surface), a first side surface  218   b  (first upright surface, first peripheral surface, second surface), and a second side surface  218   c  (second upright surface, second peripheral surface, third surface). The bottom surface  218   a  is substantially parallel with the attachment surface  212   c . The bottom surface  218   a  has a first end, and a second end located on the side opposite to the first end. The first side surface  218   b  stands from the first end of the bottom surface  218   a , and links the first end of the bottom surface  218   a  to the attachment surface  212   c . The second side surface  218   c  stands from the second end of the bottom surface  218   a , and links the second end of the bottom surface  218   a  to the attachment surface  212   c.    
     As shown in  FIG. 13  and  FIG. 14 , the sealing member  217  has a shape corresponding to the groove  218 . That is, the sealing member  217  is formed into a looped shape (frame shape) along the peripheral end (peripheral edge) of the base  215 . The sealing member  217  is attached to the groove  218 . The sealing member  217  is located outside the opening  215   a , and surrounds the opening  215   a.    
     As shown in  FIG. 13  to  FIG. 15 , the sealing member  217  has a packing portion  221  (intervening portion, closing portion, blocking portion, compressing portion, first portion), and a plurality of projecting portions  222  (protrusions, jaws, projected portion, support portion, second portion). The packing portion  221  extends linearly. The packing portion  221  constitutes the main part of the sealing member  217 , and is formed into a looped shape (frame shape) along the peripheral end of the base  215 . 
     The packing portion  221  is located outside the opening  215   a , and surrounds the opening  215   a . The packing portion  221  is held between the base  215  and the mask  216 , and is compressed (compressively deformed) between the base  215  and the mask  216 . The packing portion  221  liquid-tightly closes the space between the base  215  and the mask  216 . 
     As shown in  FIG. 15 , the packing portion  221  has a section closer to a pentagonal shape than a circular shape. The packing portion  221  has a first end  221   a  and a second end  221   b  in the thickness direction of the packing portion  221 . The first end  221   a  faces the bottom surface  218   a  of the groove  218 , and abuts on the bottom surface  218   a  of the groove  218 . The second end  221   b  is located on the side opposite to the first end  221   a . The second end  221   b  faces the mask  216 , and abuts on the mask  216 . 
     As shown in  FIG. 15 , the first end  221   a  has two protruded portions, and a recess provided therebetween. The two protruded portions abut on the bottom surface  218   a  of the groove  218 , and are supported by the bottom surface  218   a  of the groove  218 . As the recess is provided between the two protruded portions, the two protruded portions are apt to be elastically deformed. Therefore, the first end  221   a  is apt to tightly contact (closely contact) the bottom surface  218   a  of the groove  218 . This enhances the liquid-tightness (waterproof property) of the television receiver  201 . 
     The second end  221   b  is wedge-shaped (V-shaped) when not compressively deformed. That is, the second end  221   b  is thinner in parts closer to the mask  216 . As shown in  FIG. 16 , the second end  221   b  abuts on the mask  216 , and is supported by the mask  216 . The second end  221   b  is pressed by the mask  216 , and is deformed (elastically deformed) along the inner surface of the mask  216 . This ensures that the space between the second end  221   b  and the mask  216  is liquid-tightly closed. Here, the second end  221   b  is wedge-shaped and is therefore apt to be elastically deformed. Therefore, the second end  221   b  is apt to tightly contact (closely contact) the mask  216 . This enhances the liquid-tightness (waterproof property) of the television receiver  201 . 
     As shown in  FIG. 13  and  FIG. 14 , the projecting portions  222  are partly provided in the packing portion  221 . The projecting portions  222  are distant from one another in the extending direction of the packing portion  221  (in the circumferential direction of the packing portion  221 ). 
     As shown in  FIG. 15 , the packing portion  221  has a side surface  221   c  (inner peripheral surface, inner surface) ranging between the first end  221   a  and the second end  221   b . The side surface  221   c  faces the first side surface  218   b  of the groove  218 . The projecting portions  222  are provided in the side surface  221   c , and project into the packing portion  221  from the side surface  221   c . The projecting portions  222  extend in the shape of a plate in a direction substantially parallel with the bottom surface  218   a  of the groove  218 . 
     Here, the direction in which the mask  216  is attached to the base  215  (the thickness direction of the housing  204 ) is defined as a first direction D 1 . The direction intersecting with the first direction D 1  (e.g., the direction intersecting substantially at right angles with the first direction D 1 ) is defined as a second direction D 2 . The projecting portions  222  project in the second direction D 2 . 
     As shown in  FIG. 15 , the projecting portion  222  projects substantially from the center of the side surface  221   c . A first step  223   a  is provided between the projecting portion  222  and the second end  221   b . Therefore, the projecting portion  222  is located closer to the bottom surface  218   a  of the groove  218  than the second end  221   b . The projecting portion  222  is located closer to the first end  221   a  than the second end  221   b . In other words, the projecting portion  222  is farther from the attachment surface  212   c  (the mask  216 ) than the second end  221   b.    
     A second step  223   b  is provided between the projecting portion  222  and the first end  221   a . Therefore, the projecting portion  222  is located closer to the mask  216  than the first end  221   a . The projecting portion  222  is located closer to the second end  221   b  than the first end  221   a . In other words, the projecting portion  222  is farther from the bottom surface  218   a  of the groove  218  than the first end  221   a . A clearance C 1  is provided between the projecting portion  222  and the bottom surface  218   a  of the groove  218 . 
     If the sealing member  217  (the packing portion  221 ) is twisted or collapsed during the attachment of the sealing member  217  to the groove  218 , the projecting portion  222  abuts on the bottom surface  218   a  of the groove  218 . This inhibits the considerable twisting or collapse of the sealing member  217  (the packing portion  221 ). 
     As shown in  FIG. 14 , the groove  218  has a first portion  225   a , and a second portion  225   b . The first portion  225   a  is provided to adapt to the outer shape of the packing portion  221 , and the packing portion  221  is received in the first portion  225   a . The second portion  225   b  corresponds to the projecting portion  222 . The second portion  225   b  is provided to adapt to the outer shape of the projecting portion  222 , and the projecting portion  222  is received in the second portion  225   b . The bottom surface  218   a  of the groove  218  located in the second portion  225   b  is an example of a “first portion facing the projecting portion”. 
     The sidewall  212  has a first region  226   a  (first portion) and a second region  226   b  (second portion). The first region  226   a  corresponds to a part where the projecting portions  222  are not provided. The first region  226   a  extends substantially parallel with the packing portion  221 . The second region  226   b  corresponds to the projecting portion  222 . The second region  226   b  has a raised portion  227  (projected portion, projecting portion) projecting into the housing  204  as compared with the first region  226   a . Thus, the attachment surface  212   c  of the second region  226   b  is wider than the attachment surface  212   c  of the first region  226   a . The second portion  225   b  of the groove  218  is provided in the wider attachment surface  212   c  of the second region  226   b.    
     As shown in  FIG. 13 , the packing portion  221  has four corners  228  (corner portions, arc-shaped portions, curved portions), and four linear portions  229  extending between the four corners  228 . The packing portion  221  also has a bent portion  230  bent toward the inside of the housing  204  along one linear portion  229 . 
     The corner  228  and the bent portion  230  are each an example of a path changing portion (nonlinear portion) which is changed from the linear shape of the packing portion  221 . The projecting portions  222  are separately located on both sides of the path changing portion. In other words, the path changing portion is located between the projecting portions  222 . Some of the projecting portions  222  are provided in the linear portion  229 . The projecting portions  222  may be provided along the corner  228  or along the bent portion  230 . 
     As shown in  FIG. 14 , an engagement portion  231  (receiving portion, claw portion, support portion, attachment portion) with which the mask  216  engages is provided in the inner surface  212   a  of the sidewall  212 . The projecting portion  222  is provided, for example, in the vicinity of the engagement portion  231 . The engagement portion  231  is provided in the first region  226   a  of the sidewall  212  (i.e., the region where the raised portion  227  is not present). 
     The engagement portion  231  is aligned with the raised portion  227  in a direction substantially parallel with the inner surface  212   a  of the sidewall  212  (in a direction along the inner surface  212   a ). In other words, a part of the engagement portion  231  is located closer to the outer surface  212   b  of the sidewall  212  than a part of the raised portion  227 . The engagement portion  231  and the raised portion  227  are provided in different regions of the sidewall  212 , so that the sidewall  212  can be reduced in thickness. This contributes to the size reduction of the television receiver  201 . 
     As shown in  FIG. 15 ,  FIG. 16 ,  FIG. 19 , and  FIG. 20 , the inner surface of the mask  216  has a flat portion  232  (press portion, contact portion, connecting portion, first portion), and a plurality of support portions  233  (protrusions, projecting portions, support portions, second portions). The flat portion  232  is provided all around the mask  216 . The flat portion  232  faces the packing portion  221 , and contacts the packing portion  221 . The flat portion  232  presses the packing portion  221  toward the bottom surface  218   a  of the groove  218 , and supports the packing portion  221 . Consequently, the packing portion  221  is compressed between the flat portion  232  and the bottom surface  218   a  of the groove  218 . 
     The support portions  233  are partly provided at the positions corresponding to the projecting portions  222  of the sealing member  217 . The support portions  233  are provided separately in the circumferential direction of the peripheral end of the mask  216 . The support portions  233  are, for example, protrusions (ribs) provided on the inner surface of the mask  216 . The support portions  233  project toward the projecting portions  222  from the mask  216 , and face the projecting portions  222 . The support portions  233  face the projecting portions  222  from the side opposite to the bottom surface  218   a  of the groove  218 . The support portion  233  is an example of a “second portion facing the projecting portion”. The tip of the support portion  233  comes into the groove  218 , and faces the projecting portion  222  within the groove  218 . 
     As shown in  FIG. 15 , a third step  233   a  is provided between the support portion  233  and the flat portion  232 . The step width t 1  (thickness) of the third step  233   a  is smaller than the step width t 2  (thickness) of the first step  223   a  of the sealing member  217 . 
     As shown in  FIG. 16 , the support portion  233  is slightly distant from the projecting portion  222  or lightly abuts on the projecting portion  222 . The support portions  233  face the projecting portions  222  to regulate the twisting or collapse of the sealing member  217  (the packing portion  221 ). That is, the sealing member  217  may be twisted or collapsed, and the projecting portions  222  may move in a direction to depart from the bottom surface  218   a  of the groove  218 . In this case, the support portions  233  hold the projecting portions  222  and inhibit the twisting or collapse of the sealing member  217  (the packing portion  221 ). The support portions  233  inhibit the twisting or collapse of the sealing member  217  (the packing portion  221 ) caused between the mask  216  and the base  215  during the attachment of the mask  216  to the base  215 . 
     According to such a configuration, the assembly of the electronic apparatus can be improved. 
     The sealing member intervening between the base and the mask is crushed (compressively deformed) between the mask and the base during the attachment of the mask to the base. This ensures the liquid-tightness between the mask and the base. 
     Here, when the mask is attached straight down to the base, the sealing member is not easily twisted or collapsed. However, the mask may be obliquely attached to the base due to an error in the assembly or the skill level of an operator. In this case, the sealing member is easily twisted or collapsed between the mask and the base. If the sealing member is twisted or collapsed, the sealing member may not be properly crushed between the mask and the base, and the sealing member may not be able to fulfill its function. 
     Thus, in the present embodiment, the sealing member  217  of the television receiver  201  has the packing portion  221 , and the projecting portions  222  partly provided in the packing portion  221 . The base  215  has a first portion (e.g., the bottom surface  218   a  of the groove  218 ) facing the projecting portion  222 . The mask  216  has a second portion (e.g., the support portion  233 ) facing the projecting portion  222  from the side opposite to the first portion. According to such a configuration, the projecting portion  222  is supported by the base  215  and the mask  216 , and the packing portion  221  is not easily rotated. This makes it possible to inhibit the twisting or collapse of the sealing member  217  and improve the assembly of the television receiver  201 . 
     Additionally, the above-mentioned support portions  233  are provided so that the sealing member  217  is not easily twisted or collapsed even if the width W (breadth) of the packing portion  221  (see  FIG. 14 ) is reduced. Therefore, the sealing member  217  having the small width W can be used. This contributes to the size reduction of the television receiver  201 . 
     In the present embodiment, the mask  216  has the support portions  233  facing the projecting portions  222  from the side opposite to the base  215 . According to such a configuration, the projecting portions  222  are supported by the support portions  233 , and the turning of the packing portion  221  is regulated. This can inhibit the twisting or collapse of the sealing member  217 . 
     In the present embodiment, the projecting portions  222  are provided on the inner side of the looped packing portion  221 . Therefore, the raised portion  227  is substantially aligned with the engagement portion  231  along the inner surface  212   a  of the sidewall  212 . Thus, the television receiver  201  can be reduced in size. 
     In the present embodiment, the clearance C 1  is provided between the projecting portion  222  and the bottom surface  218   a  of the groove  218 . According to such a configuration, it is possible to avoid the situation in which the packing portion  221  is not sufficiently compressed between the mask  216  and the base  215  because of the obstructive projecting portion  222  which is held between the mask  216  and the base  215 . That is, this facilitates the proper compression of the packing portion  221  between the mask  216  and the base  215  by providing the clearance C 1  (allowance, margin) between the projecting portion  222  and the bottom surface  218   a  of the groove  218 . 
     In the present embodiment, the projecting portion  222  is located closer to the bottom surface  218   a  of the groove  218  than the second end  221   b  of the packing portion  221 . That is, the first step  223   a  is provided between the second end  221   b  of the packing portion  221  and the projecting portion  222 . According to such a configuration, it is possible to further avoid the situation in which the packing portion  221  is not sufficiently compressed between the mask  216  and the base  215  because of the obstructive projecting portion  222  which is held between the flat portion  232  of the mask  216  and the base  215 . 
     In the present embodiment, the tip of the support portion  233  comes into the groove  218 , and faces the projecting portion  222  within the groove  218 . Such a configuration further ensures that the support portions  233  hold the projecting portions  222  when the sealing member  217  is twisted or collapsed. 
     In the present embodiment, the second end  221   b  of the packing portion  221  is wedge-shaped and becomes thinner in parts closer to the mask  216 . Such a shape allows the second end  221   b  to be easily elastically deformed, and allows the second end  221   b  and the mask  216  to easily come into close contact. 
     On the other hand, if the second end  221   b  is wedge-shaped, the sealing member  217  is apt to be twisted or collapsed when the mask  216  is obliquely attached to the base  215 . However, according to the configuration in the present embodiment, the projecting portions  222  can be supported by the support portions  233  to inhibit the twisting or collapse of the sealing member  217 . In other words, as the projecting portions  222  and the support portions  233  are provided, the twisting or collapse is inhibited, and at the same time, the second end  221   b  is wedge-shaped so that the mask  216  and the packing portion  221  can be in closer contact. 
     In the present embodiment, the projecting portions  222  are separately located on both sides of the path changing portion of the packing portion  221 . Such a configuration further ensures that the path changing portion which is particularly apt to be twisted or collapsed can be supported. Moreover, the projecting portions  222  are provided on both sides of the path changing portion of the packing portion  221  rather than along the path changing portion, so that a housing structure such as a boss can be provided in the vicinity of the path changing portion (e.g., the corner  228 ). This contributes to the size reduction of the television receiver  201 . 
     In the present embodiment, the projecting portions  222  and the support portions  233  are partly provided at the peripheral end of the base  215 . Thus, the engagement portion  231  (coupling portion) of the base  215  and the mask  216  can be provided by using the region (e.g., the first region  226   a ) in which the projecting portions  222  and the support portions  233  are not provided. Consequently, according to the configuration in the present embodiment, it is possible to reduce the television receiver  201  in size as compared with the case where the projecting portions  222  and the support portions  233  are provided all around the peripheral end of the base  215 . 
     The television receiver  201  is not limited to the configuration described above. For example, the sealing member  217  may be attached to the mask  216  instead of the base  215 . That is, the groove  218  may be provided in the mask  216  to attach the sealing member  217 , and the support portions  233  may be provided in the base  215 . In this case, the mask  216  is an example of a “first member”. The base  215  is an example of a “second member”. The attachment portion to attach the sealing member  217  does not have to be a groove. The sealing member  217  is not limited to the looped shape. 
     The projecting portion  222  does not exclusively extend in a direction substantially parallel with the bottom surface  218   a  of the groove  218 . The projecting portion  222  may extend, for example, in a direction intersecting with the bottom surface  218   a . The projecting portions  222  may otherwise project outward from the outer peripheral surface of the packing portion  221 . The packing portion  221 , the projecting portion  222 , and the support portion  233  are not limited to the shapes and structures described above. 
     (Speaker Attachment Structure) 
     Now, a speaker attachment structure is described. As shown in  FIG. 21 , a pair of speakers  241  are housed in the housing  204 . As the attachment structures for the pair of speakers  241  are substantially the same, the attachment structure for one speaker  241  is described in detail by way of example. 
     As shown in  FIG. 12 ,  FIG. 22 , and  FIG. 23 , an opening  242  is provided in the sidewall  212  of the housing  204 . The opening  242  is a sound release portion (sound release opening) through which the sound from the speaker  241  is released. The opening  242  is provided substantially parallel with the bottom wall  211 , and laterally passes through the sidewall  212 . As shown in  FIG. 21  to  FIG. 23 , the speaker  241  faces the opening  242  within the housing  204 . 
     An attachment portion  243  (raised portion) to which the speaker  241  is attached is provided in the inner surface  212   a  of the sidewall  212  of the housing  204 . The attachment portion  243  projects to the inside of the housing  204  from the inner surface  212   a  of the sidewall  212 . Thus, the attachment portion  243  has an attachment surface  243   a  extending in the thickness direction of the housing  204 . That is, the attachment surface  243   a  extends in a direction perpendicular to the arc-shaped sidewall  212 . The opening  242  (sound release opening) is provided in the attachment portion  243  integrally with the sidewall  212 . 
     As shown in  FIG. 22  and  FIG. 23 , a waterproof sheet  244 , two cushions  245  and  246 , and three double-sided tapes  247 ,  248  and  249  are provided in the space between the speaker  241  and the opening  242  (the sidewall  212 ). The waterproof sheet  244  (liquid-tight sheet, waterproof portion, blocking portion, shielding portion, sheet, member) is located between the attachment surface  243   a  and the speaker  241 . No hole is provided in the waterproof sheet  244 . The waterproof sheet  244  is made of, for example, a relatively rigid material to transmit the vibration from the speaker  241  to the outside. 
     The first cushion  245  (first elastic portion, first intervening member) is provided between the waterproof sheet  244  and the attachment surface  243   a . The second cushion  246  (second elastic portion, second intervening member) is provided between the waterproof sheet  244  and the speaker  241 . The cushions  245  and  246  are members that can be deformed when pressed, and are, for example, sponge members or rubber members. The cushions are provided on both sides of the waterproof sheet  244  so that the waterproof sheet  244  can vibrate back and forth. Openings corresponding to the openings  242  (sound release openings) are provided in the first and second cushions  245  and  246 , respectively. 
     The waterproof first double-sided tape  247  is provided between the first cushion  245  and the attachment surface  243   a . The waterproof second double-sided tape  248  is provided between the first cushion  245  and the waterproof sheet  244 . The third double-sided tape  249  is provided between the waterproof sheet  244  and the second cushion  246 . Openings corresponding to the openings  242  (sound release openings) are provided in the first to third double-sided tapes  247 ,  248  and  249 , respectively. 
     The waterproof sheet  244 , the cushions  245  and  246 , and the double-sided tapes  247 ,  248  and  249  are bonded together, and attached to the attachment surface  243   a  before the attachment of the speaker  241 , and then supported by the housing  204 . The waterproof sheet  244 , the cushions  245  and  246 , and the double-sided tapes  247 ,  248  and  249  that are bonded together as one constitute an example of a sealing portion  250 . The sealing portion  250  is an example of an “elastic portion”. 
     As shown in  FIG. 24  to  FIG. 26 , the housing  204  has a first support portion  251  (first protrusion, first attachment portion, first temporary fastening portion, first temporary fixing portion) and a second support portion  252  (second protrusion, second attachment portion, second temporary fastening portion, second temporary fixing portion). Each of the first and second support portions  251  and  252  is a protrusion projecting from the inner surface of the housing  204 , and is, for example, a columnar pin. The first support portion  251  and the second support portion  252  are, for example, separately located on both sides of the attachment portion  243  (the opening  242 ). 
     The first support portion  251  and the second support portion  252  project in a direction intersecting with the bottom wall  211  (e.g., in a direction intersecting substantially at right angles with the bottom wall  211 ). The first support portion  251  and the second support portion  252  project, for example, substantially parallel with the attachment surface  243   a . In the present embodiment, the first support portion  251  and the second support portion  252  project in a direction intersecting substantially at right angles with the bottom wall  211  (i.e., the thickness direction of the housing  204 ). The first support portion  251  and the second support portion  252  may otherwise project in a direction diagonally intersecting with the bottom wall  211 . A component (module, unit) can engage with the first support portion  251  from a direction intersecting with the bottom wall  211  (e.g., from a direction intersecting substantially at right angles with the bottom wall  211 ). 
     As shown in  FIG. 24  to  FIG. 26 , the housing  204  has a first fixing portion  253  and a second fixing portion  254 . Each of the first and second fixing portions  253  and  254  is a protruded portion projecting from the inner surface of the housing  204 , and is, for example, a boss. A hole  255  is provided in each of the first and second fixing portions  253  and  254 . The hole  255  is, for example, a threaded hole or a threaded through-hole. The hole  255  may be a hole with a bottom or may be a through-hole. The hole  255  is open in a direction intersecting with the bottom wall  211  (e.g., in a direction intersecting substantially at right angles with the bottom wall  211 ). 
     The first fixing portion  253  is located in the vicinity of the first support portion  251 . The first support portion  251  is located between the first fixing portion  253  and the attachment portion  243 . The second fixing portion  254  is located in the vicinity of the second support portion  252 . The second support portion  252  is located between the second fixing portion  254  and the attachment portion  243 . The first support portion  251  may be located outside the first fixing portion  253 . The second support portion  252  may be located outside the second fixing portion  254 . 
     As shown in  FIG. 27 , a holder  256  (speaker holder, holding portion, case, attachment member) is attached to the speaker  241 . The holder  256  and the speaker  241  are integrated as a speaker module  257  (speaker unit). The housing  204  (the base  215 ) is an example of a “first member”. The speaker module  257  is an example of a “second member”, a “module”, a “unit”, a “component”, or a “member”. 
     As shown in  FIG. 24  to  FIG. 27 , the holder  256  has a first portion  256   a , a second portion  256   b , and a third portion  256   c . The first portion  256   a  is a holding portion (support portion) which holds the speaker  241 . The first portion  256   a  surrounds the outer shape of the speaker  241 . The first portion  256   a  faces the sealing portion  250  (elastic portion). 
     The first portion  256   a  has a first end, and a second end located on the side opposite to the first end. The second portion  256   b  is provided at the first end of the first portion  256   a , and extends in a direction to depart from the speaker  241 . The third portion  256   c  is provided at the second end of the first portion  256   a , and extends in a direction to depart from the speaker  241 . That is, the second portion  256   b  and the third portion  256   c  are separately located on both sides of the first portion  256   a.    
     As shown in  FIG. 24  to  FIG. 27 , the second portion  256   b  is formed into a plate shape substantially parallel with, for example, the bottom wall  211 . The second portion  256   b  faces the first support portion  251  and the first fixing portion  253  in a direction intersecting with the bottom wall  211  (e.g., in a direction intersecting substantially at right angles with the bottom wall  211 ). The second portion  256   b  is provided with a first tilted portion  261  (first attachment portion, first engaging portion). 
     The first tilted portion  261  engages with the first support portion  251 . The first tilted portion  261  is, for example, a hole (round hole, through-hole, insertion hole) through which the first support portion  251  is passed. The first tilted portion  261  is not limited to the hole, and may be a recess (valley) provided in the holder  256 . The first tilted portion  261  is engaged with (attached to, passed through) the first support portion  251  from a direction intersecting with the bottom wall  211 . The first tilted portion  261  is engaged with the first support portion  251 , for example, from a direction substantially parallel with the attachment surface  243   a . The first tilted portion  261  is engaged with the first support portion  251 , and the first support portion  251  thereby supports the speaker module  257 . 
     As shown in  FIG. 25  and  FIG. 26 , the speaker module  257  can rotate on the first support portion  251  (center, rotational center, supporting point) between a first position P 1  and a second position P 2  while being supported by the first support portion  251 . 
     As shown in  FIG. 25 , the first position P 1  (temporary fixing position, temporary storage position) is a position distant from the sidewall  212 . At the first position P 1 , the speaker module  257  is directed to intersect with the sidewall  212 , and is tilted relative to the sidewall  212 . At the first position P 1 , the speaker module  257  is distant from the sealing portion  250 . A clearance C 2  is provided between the speaker module  257  and the sealing portion  250 . At the first position P 1 , the sealing portion  250  is not compressed. 
     The speaker module  257  can move to the second position P 2  (main fixing position) from the first position P 1  while being supported by the first support portion  251 . In the present embodiment, the speaker module  257  is rotated on the first support portion  251  while the first tilted portion  261  is engaged with the first support portion  251 , and the speaker module  257  is thereby moved to the second position P 2  from the first position P 1  in a direction substantially parallel with the bottom wall  211 . 
     As shown in  FIG. 26 , the second position P 2  is located closer to the sidewall  212  (the opening  242 , the sealing portion  250 ) than the first position P 1 . At the second position P 2 , the speaker module  257  is located substantially parallel with the sidewall  212 . The speaker module  257  is located in front of the opening  242 , and faces the opening  242 . 
     The sealing portion  250  is held between the speaker module  257  and the sidewall  212  while the speaker module  257  moves from the first position P 1  to the second position P 2 . At the second position P 2 , the speaker module  257  abuts on the sealing portion  250 , and presses the sealing portion  250  to the sidewall  212 . As a result, the sealing portion  250  is compressed (compressively deformed) between the speaker module  257  and the sidewall  212 , and liquid-tightly closes the space between the speaker module  257  and the sidewall  212 . The sealing portion  250  liquid-tightly closes around the opening  242 . 
     As shown in  FIG. 24  to  FIG. 27 , the third portion  256   c  is formed into a plate shape substantially parallel with, for example, the bottom wall  211 . The third portion  256   c  faces the second fixing portion  254  in a direction intersecting with the bottom wall  211  (e.g., in a direction intersecting substantially at right angles with the bottom wall  211 ). The third portion  256   c  is provided with a second engagement portion  262  (second attachment portion, second engaging portion). 
     The second engagement portion  262  abuts on (engages with) the second support portion  252  at the second position P 2 . Thus, the rotation of the speaker module  257  is regulated at the second position P 2 , and the speaker module  257  is positioned at the second position P 2 . The second support portion  252  is an example of a “positioning portion”. 
     The speaker module  257  (the second portion  256   b ) has an end facing the second support portion  252 . The second engagement portion  262  is provided at this end. One example of the second engagement portion  262  is a U-shaped cutout open toward the second support portion  252 . The second engagement portion  262  engages with the second support portion  252  (the second support portion  252  is inserted into the second engagement portion  262 ) in a direction intersecting with the thickness direction of the housing  204  (e.g., in a direction substantially parallel to the bottom wall  211 ). 
     One example of the second engagement portion  262  has, for example, a hook  263  (claw portion, engaging portion, temporary fastening portion) which hooks to (catches) the second support portion  252 . The second engagement portion  262  (the hook  263 ) engages with the second support portion  252  at the second position P 2 , and is temporarily fixed to the second support portion  252 . The speaker module  257  is thereby temporarily fixed at the second position P 2 . The second engagement portion  262  may be temporarily fixed to, for example, the second support portion  252  having a narrow portion (engaging portion, temporary fastening portion) smaller in diameter than the second support portion  252 , instead of the hook  263 . 
     As shown in  FIG. 24  to  FIG. 27 , a second portion  262   b  of the holder  256  has a first hole  264  (first insertion hole, first through-hole, first fixing hole, first bore, first attachment hole). The first hole  264  faces the hole  255  of the first fixing portion  253  at the second position P 2 . A first fixing member  265  (first fixing portion, first attachment member, first support member) is attached to the first hole  264  of the holder  256  and the hole  255  of the first fixing portion  253 . 
     The first fixing member  265  is, for example, a screw. The first fixing member  265  is inserted into the first hole  264  and the hole  255  of the first fixing portion  253  from a direction intersecting with the bottom wall  211  (e.g., from a direction intersecting substantially at right angles with the bottom wall  211 ). The first fixing member  265  is inserted into the first hole  264  and the hole  255  of the first fixing portion  253 , for example, from a direction substantially parallel with the attachment surface  243   a.    
     In the present embodiment, the inner surface of the mask  216  has a third fixing portion  269  (see  FIG. 19  and  FIG. 20 ) facing the first fixing portion  253 . The third fixing portion  269  has a threaded hole  255 . As shown in  FIG. 26 , the first fixing member  265  is passed through, for example, the hole  255  (insertion hole) of the first fixing portion  253  and the first hole  264  of the holder  256  from the outside of the housing  204 , and fixed to (engaged with, threaded into) the hole  255  of the third fixing portion  269  of the mask  216 . As a result, the speaker module  257  is fixed to the housing  204  at the second position P 2 . 
     Instead of the configuration described above, the hole  255  of the first fixing portion  253  may be a threaded hole. The first fixing member  265  may be passed through the first hole  264  of the holder  256  from the inside of the housing  204 , and fixed to (engaged with, threaded into) the hole  255  of the first fixing portion  253 . 
     As shown in  FIG. 24  to  FIG. 27 , the third portion  256   c  of the holder  256  has a second hole  266  (second insertion hole, second through-hole, second fixing hole, second bore, second attachment hole). The second hole  266  faces the hole  255  of the second fixing portion  254  at the second position P 2 . A second fixing member  267  (second fixing portion, second attachment member, second support member) is attached to the second hole  266  of the holder  256  and the hole  255  of the second fixing portion  254 . 
     The second fixing member  267  is, for example, a screw. The second fixing member  267  is inserted into the second hole  266  and the hole  255  of the second fixing portion  254  from a direction intersecting with the bottom wall  211  (e.g., from a direction intersecting substantially at right angles with the bottom wall  211 ). The second fixing member  267  is inserted into the second hole  266  and the hole  255  of the second fixing portion  254 , for example, from a direction substantially parallel with the attachment surface  243   a.    
     In the present embodiment, the hole  255  of the second fixing portion  254  is a threaded hole. The second fixing member  267  is passed through the second hole  266  of the holder  256  from the inside of the housing  204 , and fixed to (engaged with, threaded into) the hole  255  of the second fixing portion  254 . As a result, the speaker module  257  is fixed to the housing  204  at the second position P 2 . 
     As shown in  FIG. 26 , in the present embodiment, the first fixing member  265  and the second fixing member  267  are stepped screws. The stepped screw has a threaded portion  268   a  and an unthreaded portion  268   b  (trunk portion, cylinder portion). The unthreaded portion  268   b  is not threaded. Therefore, the unthreaded portion  268   b  has a smaller component tolerance than the threaded portion  268   a.    
     The unthreaded portion  268   b  of the first fixing member  265  is inserted into the first hole  264  of the holder  256 . The unthreaded portion  268   b  of the second fixing member  267  is inserted into the second hole  266  of the holder  256 . The position of the holder  256  is precisely determined by the insertion of the unthreaded portions  268   b  of the first and second fixing members  265  and  267  into the holes  264  and  266 . Thus, the compression amount (crush amount) of the sealing member  217  can be accurately controlled. 
     The speaker module  257  is temporarily stored (temporarily fixed) at the first position P 1  of the housing  204 , and fixed (mainly fixed) to the housing  204  at the second position P 2  to which the speaker module  257  is moved from the first position P 1 . Referring now to  FIG. 25 ,  FIG. 26 , and  FIG. 27 , one example of how to attach the speaker module  257  is described. 
     First, the sealing portion  250  is attached to the sidewall  212  before the attachment of the speaker module  257  (S 1  in  FIG. 27 ). The sealing portion  250  may be attached to the speaker module  257  instead of the sidewall  212 . 
     Here, a first direction X and a second direction Y based on a viewpoint different from that described above are defined. The first direction X is a direction intersecting with the bottom wall  211 . In the present embodiment, the first direction X is a direction substantially perpendicular to the bottom wall  211 . The first direction X may be a direction diagonally intersecting with the bottom wall  211 . 
     As shown in  FIG. 25 , the speaker module  257  is attached to the first support portion  251  from the first direction X (S 2  in  FIG. 27 ). The speaker module  257  is attached at the first position P 1  distant from the sidewall  212  without abutting on the sealing portion  250  attached to the sidewall  212  (without removing the sealing portion  250 ). The speaker module  257  is supported by the first support portion  251  at the first position P 1 . 
     The speaker module  257  is moved to the second position P 2  from the first position P 1  while being supported by the first support portion  251  (S 3  in  FIG. 27 ). In the present embodiment, the speaker module  257  is rotated on the first support portion  251  in the second direction Y. The second direction Y is a direction intersecting with the first direction X. The second direction Y is a direction to approach the sealing portion  250  (the sidewall  212 ) from the first position P 1 . In the present embodiment, the second direction Y is a direction substantially parallel with the bottom wall  211 . The second direction Y is a direction intersecting with (e.g., a direction intersecting substantially at right angles with) the sealing portion  250  (the sidewall  212 ). 
     The sealing portion  250  is held between the speaker module  257  and the sidewall  212  while the speaker module  257  moves from the first position P 1  to the second position P 2  (S 4  in  FIG. 27 ), and the sealing portion  250  is compressed between the speaker module  257  and the sidewall  212 . This liquid-tightly closes around the opening  242 . 
     When the speaker module  257  is moved to the second position P 2 , the second engagement portion  262  abuts on the second support portion  252 , and the movement of the speaker module  257  is regulated (S 5  in  FIG. 27 ). The speaker module  257  is thereby positioned at the second position P 2 . In the present embodiment, the second engagement portion  262  has the hook  263  which hooks to the second support portion  252 . Thus, the speaker module  257  which has been moved to the second position P 2  is engaged with the second support portion  252  at the second position, and held at the second position P 2 . 
     The second fixing member  267  is then passed through the second hole  266  of the holder  256 , and engaged with the hole  255  of the second fixing portion  254  (S 6  in  FIG. 27 ). The speaker module  257  is thereby fixed (mainly fixed) to the housing  204 . Moreover, in the present embodiment, after the base  215  and the mask  216  are set to each other, the first fixing member  265  is passed through the hole  255  of the first fixing portion  253  and the first hole  264  of the holder  256 , and engaged with the hole  255  of the third fixing portion  269  of the mask  216 . As a result, the base  215 , the mask  216 , and the speaker module  257  are fastened together. 
     According to such a configuration, the assembly of the television receiver  201  can be improved. 
     For example, when the sound release opening of the speaker is provided in the same surface as the display screen, the design is limited by the sound release opening, which makes it difficult to obtain, for example, an electronic apparatus having a narrow frame. Accordingly, the sound release opening may be provided in the sidewall of the housing, and the speaker may be attached to the inner surface of the sidewall. 
     For comparison, an electronic apparatus  273  to which a speaker module  272  is attached from a direction substantially parallel with a sidewall  271  is shown in  FIG. 28 . The electronic apparatus  273  has a sealing portion  274  which is compressed between the sidewall  271  and the speaker module  272 . In this case, if the speaker module  272  is attached from a direction substantially parallel with the sidewall  271 , the speaker module  272  is caught by the end of the sealing portion  274 , and the sealing portion  274  may be detached from the sidewall  271  or may be tilted and compressed. Thus, the assembly of the electronic apparatus  273  having such a configuration tends to deteriorate. 
     On the other hand, in the present embodiment, the television receiver  201  has the housing  204  and the speaker module  257 . The speaker module  257  is temporarily stored at the first position P 1  of the housing  204 , and is fixed to the housing  204  at the second position P 2  to which the speaker module  257  is moved from the first position P 1 . According to such a configuration, the attachment includes two steps, so that various problems are solved and the assembly of the television receiver  201  can be improved. 
     For example, in the present embodiment, the television receiver  201  has the sealing portion  250  which is held between the speaker module  257  and the sidewall  212  while the speaker module  257  is moved from the second position P 2  to the first position P 1 . According to such a configuration, the sealing portion  250  is easily pressed from a proper direction, and the detachment or twisting of the sealing portion  250  can be inhibited. This makes it possible to improve the assembly of the television receiver  201 . 
     In the present embodiment, the speaker module  257  is engaged with the first support portion  251  from the first direction X, and moved from the first position P 1  to the second position P 2  in the second direction Y intersecting with the first direction X. According to such a configuration, the direction in which the speaker module  257  presses the sealing portion  250  can be different from the direction in which the speaker module  257  is attached to the housing  204 . Therefore, the speaker module  257  can be attached to the first support portion  251 , for example, from a direction intersecting with the bottom wall  211 . This makes it possible to improve the assembly of the television receiver  201 . 
     In the present embodiment, the fixing members  265  and  267  are further provided. The fixing members  265  and  267  are attached to the housing  204  after the movement of the speaker module  257  to the second position P 2 , and fix the speaker module  257  at the second position P 2 . According to such a configuration, the speaker module  257  can be more firmly fixed at the second position P 2 . 
     In the present embodiment, the fixing member  267  is attached to the housing  204  from a direction intersecting with the bottom wall  211 . According to such a configuration, the fixing member  267  can be attached to the housing  204 , for example, from a direction intersecting with the bottom wall  211 . This makes it possible to further improve the assembly of the television receiver  201 . 
     In the present embodiment, the first support portion  251  is a first protrusion projecting in a direction intersecting with the bottom wall  211 . The speaker module  257  is provided with the first tilted portion  261  with which the first protrusion engages. The speaker module  257  is rotated on the first protrusion while the first tilted portion  261  is engaged with the first protrusion. The speaker module  257  is thereby moved from the first position P 1  to the second position P 2  in a direction substantially parallel with the bottom wall  211 . According to such a configuration, the speaker module  257  can be stably moved in a direction substantially parallel with the bottom wall  211 . This makes it possible to further improve the assembly of the television receiver  201 . 
     In the present embodiment, the housing  204  has a positioning portion (e.g., the second support portion  252 ). The speaker module  257  is provided with the second engagement portion  262  which is engaged with and temporarily fixed to the positioning portion at the second position P 2 . According to such a configuration, the position of the speaker module  257  is precisely determined at the second position. This makes it possible to further improve the assembly of the television receiver  201 . 
     In the present embodiment, the positioning portion is a second protrusion projecting in a direction intersecting with the bottom wall  211 . The second engagement portion  262  is a cutout which is provided at the end of the speaker module  257  facing the second protrusion and which is open toward the second protrusion. According to such a configuration, the speaker module  257  which has been rotated and moved to the second position P 2  easily engages with the positioning portion. This makes it possible to further improve the assembly of the television receiver  201 . 
     The present embodiment is also applicable to, for example, an electronic apparatus  281  shown in  FIG. 30 . The electronic apparatus  281  is, for example, a slate PC. As described above, the present embodiment and the following embodiments are widely applicable to various kinds of electronic apparatuses. 
     In the present embodiment, the attachment structure for the speaker has been described. The component to which the attachment structure according to the present embodiment is not limited to the speaker. The structure described above is widely applicable to various kinds of components including, for example, a connector, a camera, a switch, an LED, a microphone, and a receiver. 
     Although the components are attached to the sidewall  212  in the present embodiment described above, the attachment structure according to the present embodiment is not limited thereto. The attachment structure described above is also applicable to the attachment of the components to the bottom wall  211 , the upper wall  213 , or other parts. The movement direction of the component from the first position P 1  to the second position P 2  is not limited to the direction substantially parallel with the bottom wall  211 . The movement of the component from the first position P 1  to the second position P 2  is not limited to the rotational movement, and may be a sliding movement or other kinds of movement. Moreover, the second support portion  252  can be omitted. 
     Referring now to  FIG. 31  and  FIG. 32 , a seventh embodiment is described. As shown in  FIG. 31 , a support portion  251  and a fixing portion  253  are provided in a housing  204 . The support portion  251  is, for example, a columnar pin projecting in a direction substantially parallel with a bottom wall  211 . A speaker module  257  is provided with a tilted portion  261  and a hole  264 . The speaker module  257  is attached to the support portion  251  from the first direction X intersecting with the bottom wall  211 . The speaker module  257  is supported by the support portion  251  at the first position P 1  distant from a sidewall  212 . 
     As shown in  FIG. 32 , the speaker module  257  is moved from the first position P 1  to the second position P 2  while the tilted portion  261  is supported by the support portion  251 . In the present embodiment, the speaker module  257  is rotated on the support portion  251  while the first tilted portion  261  is supported by the support portion  251 , and the speaker module  257  is thereby moved to the second position P 2  from the first position P 1 . The speaker module  257  is moved to the second position P 2  from the first position P 1  in the second direction Y intersecting with the first direction X. 
     A sealing portion  250  is held and compressed between the speaker module  257  and the sidewall  212  while the speaker module  257  moves from the first position P 1  to the second position P 2 . The fixing member  265  fixes the speaker module  257  at the second position P 2 . A first fixing member  265  is attached to the housing  204  from a direction intersecting with the bottom wall  211  (e.g., in a direction substantially parallel with the sidewall  212 ). 
     According to such a configuration, the assembly of a television receiver  201  can be improved as in the sixth embodiment described above. 
     Referring now to  FIG. 33  and  FIG. 34 , an eighth embodiment is described. As shown in  FIG. 33 , a support portion  251  is provided in a housing  204 . The support portion  251  according to the present embodiment is a mounting surface (attachment surface, temporary storage position, sliding surface, guide) provided in the housing  204 . A speaker module  257  is placed on the mounting surface and thereby supported by the support portion  251 . The speaker module  257  is placed on the support portion  251  from the first direction X intersecting with a bottom wall  211 . The speaker module  257  is supported by the support portion  251  at the first position P 1  distant from a sidewall  212 . 
     As shown in  FIG. 34 , the speaker module  257  is moved to the second position P 2  from the first position P 1  while being supported by the support portion  251 . In the present embodiment, the speaker module  257  is mounted on the support portion  251 , and in this condition, slid and moved from the first position P 1  to the second position P 2  (to the sidewall  212 ). 
     In the present embodiment, a fixing member  265  is attached to, for example, the rear of the speaker module  257 . The fixing member  265  is attached to the housing  204  from a direction intersecting with the bottom wall  211  (e.g., in a direction substantially parallel with the sidewall  212 ). The fixing member  265  is, for example, wedge-shaped. As a result of the attachment of the fixing member  265 , the speaker module  257  is pressed to the sidewall  212 , and moved to the second position P 2 . The fixing member  265  fixes the speaker module  257  at the second position P 2 . 
     According to such a configuration, the assembly of a television receiver  201  can be improved as in the sixth embodiment described above. 
     Referring now to  FIG. 35 , a ninth embodiment is described. As shown in  FIG. 35 , a sidewall  212  is provided with a first opening  283  and a lid  284 . The lid  284  is removably attached to the sidewall  212 , and covers the first opening  283 . The lid  284  is fixed to the sidewall  212 , for example, by a waterproof double-sided tape  285 . The lid  284  is provided with a second opening  242  (sound release portion, sound release opening). The lid  284  is a part of the sidewall  212 . 
     A sealing portion  250  is attached to a speaker module  257 . The speaker module  257  is attached to the inside of a housing  204 . The lid  284  is attached to the sidewall  212  after the attachment of the speaker module  257 . As a result of the attachment of the lid  284  to the sidewall  212 , the sealing portion  250  is held and compressed between the lid  284  and the speaker module  257 . 
     According to such a configuration, the detachment or tilting of the sealing portion  250  can be inhibited. This makes it possible to improve the assembly of the television receiver  201 . 
     Referring now to  FIG. 36 , a tenth embodiment is described. In the sixth to ninth embodiments, the component attachment structures for waterproofing have been described. The attachment structures described above are not exclusively intended for waterproofing, and are applicable to various purposes. In the present embodiment, the attachment structure described above is applied to, for example, a pressing component for a heating component. 
     As shown in  FIG. 36 , a circuit board  206  has a heating component  286 . The heating component  286  is, but is not limited to, for example, a CPU or a graphic chip. A heat receiving component  287  (or a heat release component  287 ) is attached to the heating component  286 . A heat conducting member  288  (heat transfer member) intervenes between the heating component  286  and the heat receiving component  287 . The heat conducting member  288  is, for example, a heat conducting sheet or a heat conducting grease. The heat conducting member  288  is an example of an elastic portion. 
     A television receiver  201  has a press member  289  (press portion, press component). The heat receiving component  287  is located between the heating component  286  and the press member  289 . The press member  289  presses the heat receiving component  287  to the heating component  286 . The heat conducting member  288  is held between the heat receiving component  287  and the heating component  286 . This allows firm thermal connection between the heating component  286  and the heat receiving component  287 . 
     As shown in  FIG. 36 , the circuit board  206  is provided with a support portion  251  and a fixing portion  253 . The support portion  251  is, for example, a columnar pin projecting substantially parallel with the circuit board  206 . The fixing portion  253  is, for example, a stud provided in the circuit board  206 . The press member  289  is provided with a tilted portion  261  and a hole  264 . 
     The press member  289  is supported by the support portion  251  at the first position P 1  distant from the heat receiving component  287 . The press member  289  is moved from the first position P 1  to the second position P 2  to approach the heat receiving component  287  while the first tilted portion  261  is supported by the support portion  251 . In the present embodiment, the press member  289  is rotated on the support portion  251  while the tilted portion  261  is supported by the support portion  251 , and the press member  289  is thereby moved from the first position P 1  to the second position P 2 . 
     The heat conducting member  288  is held and compressed between the heat receiving component  287  and the heating component  286  (i.e., the press member  289  and the heating component  286 ) while the press member  289  moves from the first position P 1  to the second position P 2 . The fixing member  265  fixes the press member  289  at the second position P 2 . 
     According to such a configuration, the assembly of a television receiver  201  can be improved as in the sixth embodiment described above. Moreover, according to the present embodiment, the number of fixing members such as screws can be reduced. This contributes to the cost reduction of the television receiver  201 . 
     The attachment structures according to the sixth to tenth embodiments do not exclusively hold the sealing portion  250  and the heat conducting member  288 . For example, the embodiments are also applicable to a structure which holds a conductive member against electromagnetic interference (EMI) between a connector and a conducting portion of the housing  204 . 
     According to at least one of the electronic apparatuses described above, at least a part of a first member is located between a wall portion and a substrate, and a second member covers an opening and is pressed to the wall portion by the first member, so that the degree of freedom in the designing is higher. 
     While certain embodiments have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the inventions. Indeed, the novel embodiments described herein may be embodied in a variety of other forms; furthermore, various omissions, substitutions and changes in the form of the embodiments described herein may be made without departing from the spirit of the inventions. The accompanying claims and their equivalents are intended to cover such forms or modifications as would fall within the scope and spirit of the inventions.