Abstract:
A cable holding structure including a plurality of ribs  51  ( 52 ) stand on an inner surface of a housing  3 , and holing cables  41, 43 , wherein the ribs  51  ( 52 ) are arranged on a closed figure formed on the inner surface of the housing  3  at predetermined gaps ( 50 ) between the neighboring ribs  51  ( 52 ).

Description:
[0001]    This application is based on Japanese Patent Application No. 2009-172247 filed on Jul. 23, 2009, the contents of which are hereby incorporated by reference. 
       BACKGROUND OF THE INVENTION 
       [0002]    1. Field of the Invention 
         [0003]    The present invention relates to a cable holding structure and a cable holding method for safely holding cables connected to boards and electronic components arranged inside a liquid crystal television receiver and the like. 
         [0004]    2. Description of Related Art 
         [0005]    Conventionally, multiple boards, and components such as speakers, sensors, and LEDs are arranged in a television receiver, which is an example of an electronic device. Cables are used to connect between the multiple boards, and between the board and the component such as the speaker, the sensor, and the LED, which are often installed at separate locations. 
         [0006]    When a large force such as a vibration and a shock is applied to the television receiver, the cables may be pulled by the force, and may be damaged or disconnected. Moreover, the boards, the components, and the like to which the cables are connected are strongly pulled by the cables, and may be damaged. 
         [0007]    The cables are thus arranged in a loose state (in a state where the cables have a slack in length) in the television receiver. When the cables arranged in the loose state are pulled, a tension is not generated for the cables, namely a force is distributed, in a period from the loose state to the stretched state. As a result, forces acting on the cables themselves, and/or the boards and/or the components to which the cables are connected are reduced. 
         [0008]    On the other hand, multiple members formed by cutting and bending a metal plate (namely sheet metal) through a press process are often provided in the television receiver. A cut surface of the member formed by cutting and bending the metal plate often has a sharp cross section (sharp edge). Since the cables have the slack in length, the cables thus often move in the television receiver when the television receiver is transported or moved. On this occasion, the cables may be moved so as to be rubbed against the sharp edge. 
         [0009]    When the cable is rubbed against the sharp edge, a coating of the cable may be damaged resulting in an electrical defect such as a short circuit or an electric leak, or the cable is disconnected. Moreover, an electronic component reaching to a high temperature may be installed in the television receiver, and when the cable comes in contact with the hot electric component, the insulation coating covering the outside of the cable may be removed, resulting in a short circuit or an electric leak. When the cable is short-circuited, generates an electric leak, or is disconnected, an operation of the television receiver encounters a problem. 
         [0010]    Lock portions for locking cables are provided in a cabinet of a television receiver as described in Japanese Patent Application Laid-Open No. 2005-130097, and Japanese Examined Utility Model Registration No. 3107003. A defect such as a disconnection, an electric leak, and a short-circuit caused by a movement of the cables is prevented by engaging the cables to the lock portions provided inside the cabinet, thereby restraining the cables from moving. 
         [0011]    Moreover, a front cabinet and a rear cabinet of the television receiver are independently manufactured, and are transported to another location (final assembly plant), which is different from locations of manufacturing. Then, they are assembled together with an image display device (such as an LCD and a PDP) transported independently, resulting in a final television receiver. Different boards, components, and the like are installed on the front and rear cabinets, and the front and rear cabinets are transported as semi-assembled cabinets. 
         [0012]    When the semi-assembled front and rear cabinets are transported, end portions of the cables attached to the boards and/or the components can move freely. When the semi-assembled front cabinet and/or the semi-assembled rear cabinet are transported, the cables and/or connectors attached to the ends of the cables may present a rough motion, resulting in scratches on a decoration surface of an outer surface of the front and rear cabinets, and damages of the boards and components. 
         [0013]    When the semi-assembled cabinets are transported, a method including: providing lock portions; and transporting the cabinets while the cables are locked to the lock portions as disclosed in Japanese Patent Application Laid-Open No. 2005-130097, and Japanese Examined Utility Model Registration No. 3107003, or a method including: fixing the cables and/or connectors to the front and rear cabinets using adhesive tapes; and transporting is employed. 
         [0014]    However, even if the common cabinets are used in the television receivers, different boards and electronic components may be mounted, and the number and thickness of wires of the cables may differ depending on the boards and electronic components. When different types of cables (thickness and number) are used, there may be cables which cannot be locked by the lock portion described in Japanese Patent Application Laid-Open No. 2005-130097, and Japanese Examined Utility Model Registration No. 3107003, and the cables may not be held during the transport and/or the assembly. 
         [0015]    Moreover, the lock portions described in Japanese Patent Application Laid-Open No. 2005-130097, and Japanese Examined Utility Model Registration No. 3107003 serve to hold extra portions of the cables in the finished television receiver. The lock portions may be provided to be intended to lock cables which are different from cables connected to the boards and/or components attached the cabinet on which these lock portions are formed. As a result, when the semi-assembled cabinets are transported, the cables attached to the boards and components attached to the cabinets cannot be locked by the lock portions. Therefore, the locking by the lock portions needs to be given up, or lock portions for locking the cables during the transport need to be additionally provided. 
         [0016]    When an adhesive tape is used for attachment, an adjustment may be made depending on how the adhesive tape is adhered, and it is thus possible to prevent the cables and connecters themselves from being damaged, or other components from being damaged by contact of the cables and connectors. However, the attachment by the adhesive tape may leave an adhesive portion on a member, resulting grime and the like. 
       SUMMARY OF THE INVENTION 
       [0017]    In view of the foregoing problems, it is an object of the present invention to provide a cable holding structure and a cable holding method for easily holding cables and connectors different in thickness and number of cables. 
         [0018]    A cable holding structure according to an aspect of the present invention holds a cable arranged inside a housing of an electronic device, and includes multiple ribs elected on an inner surface of the housing of the electronic device. The multiple ribs are arranged with a gap between neighboring ribs having a predetermined width so as to form a closed figure on the inner surface of the housing of the electronic device. 
         [0019]    According to this configuration, since the multiple ribs are arranged on the closed figure with the predetermined gap, multiple cables different in the extending directions of the cables can be held without applying stress on the cables. Moreover, since the multiple ribs are arranged on the closed figure, a space enclosed by the multiple ribs is formed. Therefore, it is possible to push cables into the space to hold the cable, and the cables can be easily held and removed. 
         [0020]    As a result, it is possible to restrain the defects that the cable and the connector attached to an end of the cable move (roughly move), the cable and/or the connector itself is damaged, a decoration surface of a housing of an electronic device is scratched, and boards and components are broken. 
         [0021]    Further, since cables can be held independently of an extending direction thereof, one cable holding structure can be shared even if cables to be held during the transport of the housing of the electronic device are different from cables to be held at final assembly of the electronic device. Moreover, by providing the multiple ribs, and also providing the multiple gaps between neighboring ribs, multiple types of cables can be simultaneously held by the common cable holding structure. The employment of the cable holding structure can reduce waste, resulting in reductions of time, labor, and cost required for the manufacturing. 
         [0022]    According to a preferred aspect of the present invention, the closed figure includes at least one straight portion, and at least a rib arranged on the straight portion out of the plurality of ribs is provided with a reinforcement rib which crosses an outer wall surface of the closed figure, and protrudes from the inner surface of the housing 
         [0023]    Since the straight rib tends to fall down due to its structure, it may be broken or bent by a pulling force of a held cable. Thus, the reinforcement rib is formed, and the breakage and bend can be restrained. Therefore, a cable can be stably held, even if the cable is wound tightly around the cable holding unit. 
         [0024]    According to a preferred aspect of the present invention, the closed figure may be a quadrangle, and the multiple ribs may include at least corner ribs arranged at four corners. The multiple ribs may include at least one intermediate rib arranged between the corner ribs. The quadrangle may be a rectangle, and the cable holding structure may include a pair of the intermediate ribs that are arranged on both longer sides of the rectangle, and are formed to oppose each other. Further, all the four corner ribs may have the same shape. 
         [0025]    The corner ribs are provided as ribs, and the cross sectional shape of the corner rib is an L shape. The employment of the L-shaped ribs enables to form a strong structure against bending and breakage, resulting in a strong cable holding unit. Moreover, since the cable holding unit includes the intermediate rib, the size of the each rib can be reduced, thereby increasing the strength against the bending and breakage of the ribs. Moreover, the increase in the number of the ribs increases the number of gaps between neighboring ribs, the number of winding methods for attaching the cable can be increased, and also the number of cables to be simultaneously held can be increased. Further, the rectangular arrangement facilitates the operation of attaching the cables. 
         [0026]    According to a preferred aspect of the present invention, the closed figure may be circular, and the plurality of ribs may have the same shape, and may be arranged on a same circumference at equal intervals in the circumferential direction. 
         [0027]    According to a preferred aspect of the present invention, the gap between neighboring ribs may have at least two types of widths. The cable may vary in thickness depending on a current or a signal to be flown therethrough. In this case, if the cable is thinner than the gap, the cable holding structure cannot firmly hold the cable, and if the cable is thicker, the cable is pressed, and may be damaged upon attachment/detachment. Since at least two types of widths are provided, cables are attached to gaps according to the thickness of cables, resulting in easily and safely holding the cable. 
         [0028]    A liquid crystal television receiver is an example of an electronic device having the above-mentioned cable holding structure on a front cabinet. 
         [0029]    The cables may be clamped and held in the gaps formed between the multiple ribs. On this occasion, the cable may be held along the ribs in a zigzag manner, and the cable may be clamped in the gap so that the cable is folded back outside the closed figure. 
         [0030]    A bent portion may be formed by bending the cable, and the bent portion may be stored and held in a space surrounded by the multiple ribs. 
         [0031]    The cable may be held by storing a connector provided at an end of the cable in a space surrounded by the multiple ribs. Moreover, the connector may be held such that at least a part of the connector is disposed outside the space surrounded by the multiple ribs. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0032]      FIG. 1  is a perspective view of a state in which a front cabinet and a rear cabinet of a liquid crystal television receiver is disassembled. 
           [0033]      FIG. 2  is a perspective view enlarging a part of the front cabinet on which cable holding structures according to the present invention are formed. 
           [0034]      FIG. 3  is an enlarged view showing the cable holding structure. 
           [0035]      FIG. 4  is a plan view of the cable holding structure shown in  FIG. 3 . 
           [0036]      FIG. 5A  shows a state in which the cable holding unit shown in  FIG. 3  holds a cable in a different method. 
           [0037]      FIG. 5B  shows a state in which the cable holding unit shown in  FIG. 3  holds the cable in a different method. 
           [0038]      FIG. 5C  shows a state in which the cable holding unit shown in  FIG. 3  holds the cable in a different method. 
           [0039]      FIG. 5D  shows a state in which the cable holding unit shown in  FIG. 3  holds the cable in a different method. 
           [0040]      FIG. 5E  shows a state in which the cable holding unit shown in  FIG. 3  holds the cable in a different method. 
           [0041]      FIG. 5F  shows a state in which the cable holding unit shown in  FIG. 3  holds the cable in a different method. 
           [0042]      FIG. 6  shows another example of the cable holding structure according to the present invention. 
           [0043]      FIG. 7  shows another example of the cable holding structure according to the present invention. 
           [0044]      FIG. 8A  is a schematic view showing another example of the cable holding structure. 
           [0045]      FIG. 8B  is a schematic view showing another example of the cable holding structure. 
           [0046]      FIG. 8C  is a schematic view showing another example of the cable holding structure. 
       
    
    
     DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS 
       [0047]    A description will now be given of an embodiment of the present invention referring to drawings.  FIG. 1  is a perspective view of a state in which a front cabinet and a rear cabinet of a liquid crystal television receiver is disassembled. 
         [0048]    As shown in  FIG. 1 , the liquid crystal television receiver A includes a liquid crystal display unit  1 , a rear cabinet  2  which covers a rear side of the liquid crystal display unit  1 , and a front cabinet  3  which covers a front side of the liquid crystal display unit  1 . Moreover, a stand, which is not shown, is attached to the rear cabinet  2 . Both the front cabinet  1  and the rear cabinet  2  are molded resin products. 
         [0049]    The liquid crystal display unit  1  is an image display device including a liquid crystal panel, and includes a metal frame  10  in a cuboid shape surrounding the liquid crystal panel. The frame  10  is provided with an image display portion on a front surface, and a printed board PB used for controlling an operation of the liquid crystal television receiver A is attached and fixed to the rear surface. 
         [0050]    The rear cabinet  2  includes a rectangular rear surface, and is provided with sidewalls  20  stand on an outer edge of the rectangle toward a front surface. Moreover, multiple terminal holes  21  for exposing ends of external connection terminals (not shown) provided on the printed board PB are formed on the rear surface. 
         [0051]    The front cabinet  3  has a rectangular shape which is horizontally long viewed from front, and is provided with sidewalls  30  stand on an outer edge toward a rear surface. A rectangular opening  31  is formed at a center portion of the front cabinet  3 , and the liquid crystal display unit  1  is disposed and fixed so that the image display portion of the liquid crystal display unit  1  can be seen from the opening  31 . There is a space at a lower portion of the front cabinet  3 , and a board  32  is attached at the center of the lower portion on the rear surface side, and two speakers  33  are attached at both left and right end portions of the lower portion respectively. Switches, display LEDs, and sensors are mounted on the board  32 . 
         [0052]    A cable  41  is attached to the board  32  connected with the printed board PB mounted on the rear surface of the liquid crystal display unit  1  for transmitting/receiving signals, and a connector  42  is provided at an end of the cable  41 . Moreover, cables  43  connected with the printed board PB for supplying a drive power of the speakers are similarly attached to the speakers  33 , and a connector  44  is provided at an end of the cables  43 . 
         [0053]    Cable holding units (cable holding structures)  5  formed integrally with the front cabinet  3  are provided on the rear surface side of the front cabinet  3  as shown in  FIG. 1 . Though the cable holding units  5  are formed between the board  32  and the speakers  33 , the locations are not limited to this case, but the cable holding units  5  may be formed at locations in a free space of the front cabinet  3  and where the cables are easily attached. Moreover, though the cable holding units  5  hold the cables  43  in the television receiver A shown in  FIG. 1 , the cables to be held are not limited to the cables  43 , but the cable holding units  5  may hold the cable  41  or other cables which are not shown. 
         [0054]    A description will now be given of an arrangement of the liquid crystal display unit  1  and the front cabinet  3  referring to drawings.  FIG. 2  is a view of a state in which the liquid crystal display unit is attached to the front cabinet, and which is seen from the rear surface side. The liquid crystal display unit  1  is arranged at a little higher portion on the front cabinet  3  as shown in  FIG. 2 . The liquid crystal display unit  1  is fixed to the front cabinet  3  by screwing. The liquid crystal display unit  1  is positioned by bringing the sidewalls in contact with multiple positioning ribs formed on the front cabinet  3 . The liquid crystal display unit  1  is positioned at a proper location on the front cabinet  3 , and a user can consequently view an image displayed on the image display portion of the liquid crystal display unit  1  via the opening  31  of the front cabinet  3 . 
         [0055]    The printed board PB disposed on the rear surface of the liquid crystal display unit  1  is provided with cables Cb 1 , Cb 2 , and connectors Cn 1 , Cn 2  are attached to ends of the cables Cb 1 , Cb 2  respectively. After the liquid crystal display unit  1  is disposed on the rear surface of the front cabinet  3 , the connector  42  at the end of the cable  41  disposed on the board  32  arranged on the front cabinet  3  and the connector Cn 1  at the end of the cable Cb 1  are connected to each other, and the connectors  44  at the end of the cables  43  disposed on the speakers  33  and the connectors Cn 2  disposed at the end of the cables Cb 2  are connected to each other. 
         [0056]    The cables  41 ,  43  and the cables Cb 1 , Cb 2  are connected to each other so as to provide a play (slack). As a result, even if the cables  41 ,  43 , Cb 1 , and Cb 2  are pulled, they are deformed to become tense, and it is possible to restrain a large force from acting on the connectors  42 ,  44 , Cn 1 , and Cn 2 , the board  32 , the speakers  33 , and the printed board PB. 
         [0057]    The cable  41  can be connected to the cable Cb 1  of the printed board PB without a twist on the rear surface side of the front cabinet  3  as shown in  FIG. 2 , and thus can be shortened compared with the cables  43  for the speakers  33 . On the other hand, the speakers  33  are attached on the sidewall  30  so as to face downward, and it is necessary to form a twist for connecting the cables  43  and the cables Cb 2  with each other. The cables  43  and the cables Cb 2  thus have sufficient lengths for decreasing a load resulting from the twist. 
         [0058]      FIG. 1  is now referred to again. The rear cabinet  2  is attached to the rear surface side of the front cabinet  3  to which the liquid crystal display unit  1  is attached as shown in  FIG. 1 . The rear cabinet  2  is attached so that the sidewalls  30  of the front cabinet  3  and the sidewalls  20  of the cabinet  2  overlap in front and rear direction, and the external connection terminals mounted on the printed board PB attached on the rear surface side of the liquid crystal display unit  1  are exposed from the terminal holes  21 . It should be noted that the front cabinet  3  and the rear cabinet  2  are fixed to each other by a method which enables easy attachment and detachment, and firm fixing. Screws are used here for the fixing. 
         [0059]    After the rear cabinet  2  is placed at a proper position of the front cabinet  3 , the rear cabinet  2  is pressed and fixed to the front cabinet  3  by screwing. On this occasion, a rib for pressing the liquid crystal display unit  1  is provided on the rear cabinet  2 . Gaps are formed for avoiding the cables  41 ,  43  and/or the cables Cb 1 , Cb 2  on this rib. 
         [0060]    The cable  41  and the cable Cb 1  are connected to each other without a twist, and the center thereof is hardly displaced, and they thus hardly come out from the gap on the rib provided for avoiding the cable. On the other hand, the cables  43  and the cables Cb 2  are connected to each other with a twist, and the twist causes the center of the cable to bend, resulting in a possible displacement from the gap used for avoiding the cable. The cables may be pinched between the sidewall  30  of the front cabinet  3  and the sidewall  20  of the rear cabinet  2 , or pinched between the rib of the rear cabinet  2  and the liquid crystal display unit  1  depending on how the rear cabinet  2  is attached. 
         [0061]    Therefore, the cables  43  are held by the cable holding units  5  in order to avoid a defect that the cables  43  and/or the cables Cb 2  are pinched by a part of the rear cabinet  2  from occurring when the rear cabinet  2  is attached. Since the cables  43  are held by the cable holding units  5 , cables  43  and the cables Cb 2  can be accommodated within a predetermined location, thereby restraining the defect that the cables are pinched by the rib. Moreover, the cable  43  held by the cable holding unit  5  can be easily detached from the cable holding unit  5  when the cable  43  is pulled, and a stress generated when the cable  43  and/or the cable Cb 2  is pulled thus can be reduced. 
         [0062]    The liquid crystal television receiver is manufactured through multiple manufacturing processes, and multiple semi-assemblies are transported to a location of final assembly (plant), and the semi-assemblies which have been transported are combined into a final assembly. For example, a location of assembly in an early process is determined based on availability of each of the components and cost of the assembly, and the location of the final assembly is selected to a location close to a market to which the final product is delivered. 
         [0063]    As for the liquid crystal television receiver according to the present invention, the liquid crystal display unit  1 , the rear cabinet  2 , the front cabinet  3 , and the stand are independently transported from the locations of assembly in the early process. The front cabinet  3  is transported in a state in which the board  32  and the speakers  33  are assembled thereto at the location of assembly in the early process. 
         [0064]    By attaching the board  32  and the speakers  33  to the front cabinet  3 , the cable  41  and the connector  42  provided for the board  32 , and the cables  43  and the connectors  44  provided for the speakers  33  are attached integrally with the front cabinet  3 . When only the front cabinet  3  is transported, the cables  41 ,  43  and the connectors  42 ,  44  are in a free state, and the cables  41 ,  43  and the connectors  42 ,  44  thus tend to move (move roughly). 
         [0065]    As a result of the (rough) movement of the cables  41 ,  43  and the connectors  42 ,  44 , they come in contact with the front surface side of the front cabinet  3 , and may damage the front cabinet  3 . Moreover, the cables may be caught by a jig used for fixing the front cabinet  3  or the like, and a defect that the coating thereof is removed, or the cables are disconnected may occur. The cables  41 ,  43  are thus held by the cable holding units  5  provided on the front cabinet  3 , thereby restraining the cables  41 ,  43  and the connectors  42 ,  44  from moving roughly. 
         [0066]    A description will now be given of the detail of the cable holding unit  5  provided on the front cabinet  3  referring to drawings.  FIG. 3  is an enlarged perspective view showing an example of the cable holding structure according to the present invention, and  FIG. 4  is a plan view of the cable holding structure shown in  FIG. 3 . 
         [0067]    The cable holding unit  5  includes four corner ribs  51  provided at four corners, and having a cross section in an L shape, and a pair of intermediate ribs  52  having a flat plate shape, and disposed so as to face each other as shown in  FIG. 3 , and  FIG. 4 . The corner ribs  51  are disposed at positions corresponding to four corners of a rectangle. At each shorter side of the rectangle, the corner ribs  51  are arranged adjacently to each other. At each longer edge, the intermediate rib  52  is disposed between the corner ribs  51 . Further, on each of the intermediate ribs  52 , is formed a reinforcement rib  53  which is formed integrally with a surface of each intermediate rib  52  opposite to a surface facing the other intermediate rib  52 , and which is formed integrally with the front cabinet  3 . Though all the corner ribs  51  have the same shape, and the pair of intermediate ribs  52  have the same length, they are not limited to this configuration. 
         [0068]    Then, gaps (slits  50 ) are formed between the corner ribs  51 , and between the corner rib  51  and the intermediate rib  52 . A holding portion  54  in a cuboid shape surrounded by the four corner ribs  51  and the pair of intermediate ribs  52  is formed on the cable holding unit  5 . The widths of all the slits  50  of the cable holding unit  5  are the same, and are such widths as, when cables are placed, clamping resin coatings which cover the cables, and holding the cables by friction. 
         [0069]    In the following description, the upper corner ribs, intermediate rib and slits are denoted by a suffix u, the lower corner ribs, intermediate rib and slits are denoted by a suffix d, and the center slits are denoted by a suffix c. Moreover, the left side is denoted by L, and the right side is denoted by R. Then, the upper left corner rib is denoted by  51   u L, and the left center slit is denoted by  50   c L, for example. In the following section, the suffix is appended according to the same rule (refer to  FIG. 3 ,  FIG. 4 ). 
         [0070]    A description will now be given of an example of a method of holding cables by cable holding structures referring to drawings.  FIG. 5A  to  FIG. 5F  show states in which a cable holding unit, which is an example of the cable holding structure according to the present invention, holds a cable.  FIG. 5A  to  FIG. 5F  are diagrams showing states in which the cable holding unit shown in  FIG. 3  holds the cable in different ways. 
         [0071]    The cable holding unit  5  shown in  FIG. 5A  holds one cable (one bundle of cables) Cd. The cable Cd may be the cable  41  attached to the board  32 , the cable  43  attached to the speaker  33 , either one of the cables Cb 1 , Cb 2  attached to the printed board PB, or another cable which is not shown. 
         [0072]    In the cable holding unit  5 , the cable Cd passes downward a slit  50   u L between the upper left corner rib  51   u L and the upper intermediate rib  52   u , and passes downward a slit  50   d L between the lower left corner rib  51   d L and the lower intermediate rib  52   d . Then, the cable Cd turns around at below the lower intermediate rib  52   d , passes upward a slit  50   d R between the lower right corner rib  51   d R and the lower intermediate rib  52   d , and passes upward a slit  50   u R between the upper right corner rib  51   u R and the upper intermediate rib  52   u.    
         [0073]    The cable Cd is held by the cable holding unit  5  as described above. The length of the cable Cd is adjusted by folding back, and a connector Cm is disposed close to the upper right corner rib  51   u R and the upper intermediate rib  52   u  of the cable holding unit  5 . By arranging the connector Cm close to the cable holding unit  5  as described above, it is possible to restrain the cable Cd and the connector Cm from roughly moving when the front cabinet  3  is transported, and a vibration or an impact is input, resulting in restraint of defects such as a damage of the cable Cd and the connector Cm themselves, and a scratch and a damage caused by a contact with the connector Cm. Though the fold-back of the cable Cd is disposed at below the lower intermediate rib  52   d  in the example shown in  FIG. 5A , the fold-back is not limited to this position. The cable Cd may be disposed upside down so that the cable Cd is folded back at above the upper intermediate rib  52   u.    
         [0074]    A description will now be given of a different method for holding the cable referring to  FIG. 5B . The cable holding unit  5  holds one cable (one bundle of cables) Cd as shown in  FIG. 5B . The cable Cd is arranged so as to pass, from left to right, a slit  50   c L between the upper left corner rib  51   u L and the lower left corner rib  51   d L, and a slit  50   c R between the upper right corner rib  51   u R and the lower right corner rib  51   d R. The cable Cd is then folded back to above at the right side of the cable holding unit  5 , and the connector Cm is disposed close to the cable holding unit  5 . The cable Cd is arranged straight, and is thus easily attached to the cable holding unit  5 , resulting in a reduction in labor. 
         [0075]    Moreover, a portion of the cable Cd from the fold-back to an end may be attached to the slit  50   u R between the upper right corner rib  51   u R and the upper intermediate rib  52   u , and the slit  50   u L between the upper left corner rib  51   u L and the upper intermediate rib  52   u , so as to pass around the corner ribs  51   u R,  51   u L, and the intermediate rib  52   u . By using the cable holding unit  5 , the extra portion on the end side of the cable Cd can further be held, and it is possible to efficiently restrain the cable Cd and/or the connector Cm from roughly moving. The cable Cd may be arranged from left to right, and may be folded back downward. 
         [0076]    The cable Cd passes the slits  50   c L  50   c R arranged on the straight line, and it is thus possible to reduce the labor and time for attaching the cable Cd to the cable holding unit  5 . 
         [0077]    A description will now be given of a further different method for holding a cable referring to  FIG. 5C . The cable holding unit  5  holds one bundle of cables Cd in the example shown in  FIG. 5C . The cables Cd are folded back in the middle, and a fold-back portion is held by the holding portion  54  surrounded by the four corner ribs  51  and the pair of intermediate ribs  52  of the cable holding unit  5 . The connector Cm attached to the end of the cables Cd is then disposed outside the cable holding unit  5 . The corner ribs  51  and the intermediate ribs  52  are elastically deformable members, and when the cables Cd are pressed thereinto, each of the ribs is pushed thereby to elastically clamp the cables Cd. As a result, the cables Cd are firmly held so as to prevent the cables Cd being pulled out from the cable holding unit  5 . 
         [0078]    By holding the cables Cd using the cable holding unit  5  without catching the cables Cd in the slit  50  in this way, it is possible to restrain the cables Cd from being entwined with the corner rib  51  and/or the intermediate rib  52 , and becoming difficult to be removed when the cables are to be detached from the cable holding unit  5 . As a result, it is possible to prevent generation of defects such as a disconnection of the cables Cd themselves, a damage of an attached portion of the cables Cd due to an excessive force applied thereto, and a damage of the cable holding unit  5  since the cables Cd are pulled excessively. 
         [0079]    The cable holding unit  5  can provide different holding method for the transport of the front cabinet  3  and the members attached to the front cabinet  3 , and for the finished product. In other words, it is preferred that the cables Cd are securely held when the front cabinet  3  is transported, and also the cables Cd are easily and safely removed. The cables Cd are folded back, and are held in the holding portion of the cable holding unit  5 , for example, as shown in  FIG. 5C . Then, it is preferred that the cables are not removed by a little force so that a rough motion is prevented inside the liquid crystal television receiver during the final assembly. The cables Cd may then be placed and held in the slits  50  as shown in  FIG. 5A ,  FIG. 5B . 
         [0080]    By using the cable holding unit  5  in this way, the cables Cd can be held in a proper holding method during both the temporal holding and longtime holding. 
         [0081]    A description will now be given of a further different method for holding a cable referring to  FIG. 5D . The cable holding unit  5  holds the connector Cm attached to the end of the cable Cd as shown in  FIG. 5D . The connector Cm is engaged with and disposed in the holding portion  54  surrounded by the four corner ribs  51  and the pair of intermediate ribs  52 . The connector Cm is held by the corner ribs  51  and/or intermediate ribs  52  so as not to be pulled out. 
         [0082]    By directly holding the connector Cm by the cable holding unit  5  in this way, the rough motion of the connector Cm can be surely restrained. Since the rough motion of the connector Cm that often causes scratches and damages generated during the transport of the front cabinet  3  can be restrained, defects such as scratches and damages can be restrained. When the liquid crystal television receiver is assembled, the cable Cb can be held by passing the cable Cb through the slits  50  and wound around the corner ribs  51  and/or the intermediate ribs  52  in order to prevent the cable Cb from moving roughly. The connector Cm may be completely fit into the holding portion  54  as shown in  FIG. 5D , or the connector Cm may be arranged so that the lengthwise direction thereof forms a predetermined angle (right angle here) with respect to the front cabinet  3  (refer to  FIG. 5E ). 
         [0083]    Moreover, the connector Cm may be clamped in the slit  50   c L, and a part thereof is disposed inside the holding portion  54  as shown in  FIG. 5F . By engaging a part of the connector Cm with the slit  50  in this way, the connector Cm can be stably held by the cable holding unit  5 . As a result, the connector Cm tends not to roughly move during the transport of the front cabinet  3 , and it is possible to restrain such a defect that the connector Cm itself breaks, and the connector Cm comes in contact with the front cabinet  3  and the components attached to the front cabinet  3 , resulting in scratches or damages thereof. Though the slit  50   c L between the upper left corner rib  51   u L and the lower left corner rib  51   d L is employed as a slit for holding the connector Cm, the slit is not limited to it. Moreover, the width of at least one of the slits  50  ( 50   c L according to this embodiment) provided for the cable holding unit  5  may be made wider than other slits for holding the connector Cm for holding the connector Cm. The end of the cable Cd can be held by holding the connector Cm as shown in  FIG. 5D  to  FIG. 5F . The cable Cd is also held as a result. 
         [0084]    A description will now be given of other examples of the cable holding structure according to the present invention referring to drawings.  FIG. 6  shows another example of the cable holding structure according to the present invention. A cable holding unit  6  shown in  FIG. 6  is attached on the rear surface side of the front cabinet of the liquid crystal television receiver, and the widths of the slits are different from those of the cable holding unit  5  shown in  FIG. 4  and the like. Since it has substantially the same structure, other than the widths of the slits, as the cable holding unit  5 , a detailed description of the substantially the same portions is thus omitted. 
         [0085]    The cable holding unit  6  shown in  FIG. 6  includes corner ribs at the four corners (upper left corner rib  61   u L, upper right corner rib  61   u R, lower left corner rib  61   d L, and lower right corner rib  61   d R), and intermediate ribs  62  (upper intermediate rib  62   u  and lower intermediate rib  62   d ) vertically opposed to each other, and provided between the upper corner ribs  61   u  (upper left corner rib  61   u L and upper right corner rib  61   u R) and between the lower corner ribs  61   d  (lower left corner rib  61   d L and lower right corner rib  61   d R). 
         [0086]    Slits  60   u L,  60   u R are formed between the upper corner ribs  61   u L,  61   u R and the upper intermediate rib  62   u . Similarly, slits  60   d L,  60   d R are formed between the lower corner ribs  61   d L,  61   d R and the lower intermediate rib  62   d . Then, slits  60   c L,  60   c R are formed between the upper left corner rib  61   u L and the lower left corner rib  61   d L, and between the upper right corner rib  61   u R and the lower right corner rib  61   d R, respectively. 
         [0087]    A detailed description will now be given of the respective slits. The cable holding unit  6  simultaneously holds the cable  41  provided for the board  32  in the upper side thereof, and the cable  43  attached to the speaker  33  in the lower side thereof during the transport of the front cabinet  3 . Moreover, when the liquid crystal television receiver A is finally assembled, the cable holding unit  6  holds a cable  45  to be connected to another device while these cables are removed or are still held. 
         [0088]    On this occasion, the cable  41  is fit into the slits  60   u L,  60   u R, the cable  43  is fit into the slits  60   d L,  60   d R, and the cable  45  is fit into the slits  60   c L,  60   c R. Since the cable  41 , the cable  43 , and the cable  45  are used for different purposes (different signals or different electric current) respectively, the thickness and the number of wires stored in the cable are different. 
         [0089]    The cable  41  is attached to the front cabinet  3 , and is provided for the board  32 . The cable  41  is an electric wire for communication of signals such as a signal transmitting an operation of a switch provided on the board  32 , and a signal for transmitting a reception of an input from a remote controller, and for flowing currents for driving electronic components such as switches, sensors, and LEDs consuming a low power. A flat cable which is formed by arranging a large number of electric wires with small diameter in a flat plate shape is used as the cable  41 . 
         [0090]    On the other hand, the cable  43  includes electric wires which provide an electric power (current) for driving the speaker  33 . The electric power (current) larger than the electric power (current) for driving the electronic components described above is necessary for driving the speakers  33 . Therefore, the cables  43  for flowing the electric power for driving the speakers  33  include thicker electric wires than the electric wires included in the cable  41 . Moreover, the number of the electric wires is smaller than that of the cable  41 . 
         [0091]    The cable  45  is used to communicate signals between the printed board PB and other components. Though the cable  45  handles many signals, the cable  45  does not have wires for supplying an electric power for driving electronic components such as a switch and a sensor. The cable  45  is thus a flat cable provided with thinner electric wires compared with those of the cable  41 . 
         [0092]    Each of the slits holds each of the cables so that the cable is not easily removed, and there is the following relationship among a width L 1 , a width L 2 , and a width L 3  of the slits  60   d L,  60   d R, the slits  60   u L,  60   u R, and the slits  60   c L,  60   c R. The width L 1  of the slits  60   d L,  60   d R in which the cable  43 , which is a thick cable, is fit, is formed wide. The width L 3  of the slits  60   c L,  60   c R in which the cable  45 , which is a thin cable, is fit, is formed narrow. The width L 2  of the slits  60   u L,  60   u R in which the cable  41 , which is thinner than the cable  43 , and thicker than the cable  45 , is fit, is formed so as to fall between the width L 1  and the width L 3 . Since the width L 2  of the slits  60   u L,  60   u R is formed narrower than the width L 1  of the slits  60   d L,  60   d R, the length of the upper intermediate rib  62   u  is longer than that of the lower intermediate rib  62   d  due to the narrower width. 
         [0093]    By providing multiple types of widths of the slits  60  according to the position and the size of the cable to be installed in this way, cables different in thickness can be held by one cable holding unit  6 . When cables are held by the cable holding unit  6 , the number of cables to be simultaneously held may be one or more. Moreover, though two slits  60  having the same width are arranged at each of upper side, lower side, and middle sides of the cable holding unit  6 , the arrangement is not limited to this arrangement, but may vary according to the arrangement of cables. Moreover, the types of the cables are not limited to three, the types of the width may be changed according to the types of the cables when the number of types is two, three or more. 
         [0094]    A description will now be given of other examples of the cable holding structure according to the present invention referring to drawings.  FIG. 7  shows another example of the cable holding structure according to the present invention. A cable holding unit  7  shown in  FIG. 7  is formed so that the centers of opposed slits  70  in vertical and horizontal directions out of multiple formed slits  70  are displaced. 
         [0095]    In other words, the center of the upper left slit  70   u L formed on the left side of the upper intermediate rib  72   u  and the center of the lower left slit  70   d L formed on the left side of the lower intermediate rib  72   d  are displaced in the horizontal direction in the drawing. Moreover, the center of the upper right slit  70   u R formed on the right side of the upper intermediate rib  72   u  and the center of the lower right slit  70   d R formed on the right side of the lower intermediate rib  72   d  are displaced in the horizontal direction in the drawing. Moreover, the center of the slit  70   c L formed between the upper left corner rib  71   u L and the lower left corner rib  71   d L and the center of the slit  70   c R formed between the upper right corner rib  71   u R and the lower right corner rib  71   d R are displaced in the vertical direction in the drawing. 
         [0096]    The cable holding unit  7 , like the cable holding unit  6 , holds cables  41 ,  43 , and  45  different in type. The cable holding unit  7  simultaneously holds the cable  41  provided for the board  32  on the upper side, and the cable  43  attached to the speaker  33  on the lower side during the transport of the front cabinet  3 . Moreover, when the liquid crystal television receiver is finally assembled, the cable  45  to be connected to another device is held while these cables are removed or are still held. Though the respective cables  41 ,  43 , and  45  are shown so as to have the same thickness for the sake of description in the cable holding unit  7  shown in  FIG. 7 , these cables may be different in thickness as shown in  FIG. 6   
         [0097]    The cable  41  is attached so as to pass the upper left slit  70   u L and the lower left slit  70   d L, and the cable  42  is attached so as to pass the lower right slit  70   d R and the upper right slit  70   u R. By attaching the cables to the slits arranged so as to be displaced in the horizontal direction in this way, the cable is caught by the corner rib and/or the intermediate rib when the cable is pulled in the axial direction. As a result, it is possible to restrain the cable from being pulled out. Moreover, a pulling force acting on the cable acts on the cable holding unit  7 , and it is thus possible to prevent the pulling force from acting on a member (board and speaker) provided with the cable. 
         [0098]    Moreover, since the cable  45  is similarly attached so as to pass the slit  70   c L and the slit  70   c R, the cable  45  is caught by the corner rib. As a result, it is possible to restrain the cable from being pulled out. Moreover, since a pulling force acting on the cable acts on the cable holding unit  7 , it is possible to prevent the pulling force from acting on a member provided with the. The cable  45  may be attached to the cable holding unit  7  after the cable  41  and the cable  43  are removed, or may be attached so as to cross the cable  41  and/or the cable  43  (in the direction of the thickness of the page). 
         [0099]    Though the upper slit is displaced leftward with respect to the lower slit on both the left and right sides in the cable holding unit  7  shown in  FIG. 7 , the displacement is not limited to this case, and may be displaced in the opposite way. Moreover, the upper left slit may be formed so as to be displaced rightward with respect to the lower left slit, and the upper right slit may be formed so as to be displaced leftward with respect to the lower right slit. It is possible to widely employ slits formed such that opposing ones are so displaced as to receive the pulling force by means of the cable holding unit  7 . Moreover, all the opposing slits of the cable holding unit  7  may not be displaced. Moreover, only slits which hold a cable on which a force highly possibly acts in the axial direction of the cable may be formed to be displaced. 
         [0100]    A description will further be given of other examples of the cable holding structure according to the present invention referring to drawings.  FIG. 8A  to  FIG. 8C  are schematic diagrams showing a part of examples of the cable holding structures. A cable holding unit  8 A is provided with two pairs of intermediate ribs as shown in  FIG. 8A , namely, four corner fibs  81   a , and two pairs of intermediate ribs  82   a  are arranged so that a center space forms a square in the cable holding unit  8 A. By this arrangement, a cable can be properly engaged with slits independently of the position of the cable, resulting in high general versatility. 
         [0101]    A description will now be given of another example of the cable holding unit referring to  FIG. 8B . The cable holding unit  8   b  includes six curved ribs  81   b  in the same shape, and the curved ribs  81   b  are arranged so that an internal space forms a circle. By providing the cable holding unit  8 B formed into the circular shape in this way, a cable can be properly fit into the slits independently of the position of the cable, resulting in a high general versatility. 
         [0102]    Moreover, a description will be given of another example of the cable holding unit referring to  FIG. 8C . The cable holding unit  8 C shown in  FIG. 8C  is provided with three corner ribs  81   c  and three intermediate ribs  82   c . The corner ribs  81   c  and the intermediate ribs  82   c  are alternately arranged so that a center space forms a triangular shape. By providing the cable holding unit  8 C formed into the triangular shape in this way, a cable can be properly fit into the slits independently of the position of the cable, resulting in a high general versatility. 
         [0103]    Though the description is given of the cases in which the ribs of the cable holding unit form the rectangular shape, the square shape, the circular shape, and the triangular shape as described above, the arrangement of the ribs is not limited to these cases, and arrangements in which a space surrounded by the ribs is formed at the center may be widely employed. When the shape formed by the ribs is too complex, sinks tend to occur on the surface of the front cabinet. Therefore, a shape which is not too closely-spaced and which has a sufficient strength is preferred. 
         [0104]    The present invention can be used for a cable holding structure which holds wires arranged in a finished product of an electronic apparatus such as a liquid crystal television receiver using a LCD, and which holds wires provided for assembled parts during a transport in a semi-assembled state.