Mobile terminal device

A mobile terminal device having a structure suitable for insertion and removal of a card from the device with a battery held in a battery holding part. A mobile phone 1 has a housing body 21 having a battery holding part 19 holding a battery 17 and has a cover member 23 covering the battery holding part 19. In the battery holding part 19, a second card insertion part 27 is provided in a region not concealed by the battery 17 when the battery 17 is held in the battery holding part 19 and covered by the cover member 23. The second card insertion part 27 in which a second card C2 inserted is covered together with the battery 17 by the cover member 23.

TECHNICAL FIELD

The present invention relates to a mobile terminal device such as mobile phone, PDA (personal digital assistant), digital camera, game machine, or the like.

BACKGROUND ART

A mobile terminal device capable of insertion and removal of an IC (integrated circuit) card is known. For example, a mobile phone capable of insertion and removal of an IC card is known. IC cards inserted to the mobile phone include, for example, SIM (subscriber identity module) cards and UIM (universal subscriber identity module) cards.

SIM cards and UIM cards are for enabling replacement of mobile phones or enabling utilization of a plurality of mobile phones while using the same phone number and store information capable of specifying the phone number. Insertion and removal of such a card in a state where the power of the mobile phone is turned on is not preferred. Therefore, generally an insertion part (opening) of this type of card is configured so that a card cannot be inserted and removed unless the battery is detached from the mobile phone. For example, Patent Literature 1 discloses a mobile phone providing an insertion part for inserting an SIM card on an inner wall of a battery holding part of a housing.

On the other hand, as an IC card to/from which music data, image data, etc. are suitably written and read in accordance with operation of the user, a memory card such as an SD card or the like is known. It is preferred that such the memory card can be inserted and removed even in a state where the power of the mobile phone is turned on. Therefore, the insertion part of a memory card is generally provided at the outside of the housing unlike the insertion part of a SIM card or UIM card explained above.Patent Literature 1: Japanese Patent Publication (A) No. 2004-222170

DISCLOSURE OF INVENTION

Problem to be Solved by the Invention

In Patent Literature 1, an insertion part of a card (memory card) designed to be inserted and removed in a state with a battery held in a battery holding part is provided at the outside of the housing. When providing the insertion part of the card at the outside of the housing in this way, a cap for concealing the insertion part to prevent entry of dust etc. from the insertion part is provided. For this reason, the number of parts becomes larger. Further, design restrictions arise. The mobile phone of Patent Literature 1 is configured so that an SIM card and a memory card can be mounted stacked over each other. In this case, in order to make it possible to insert the memory card from the outside of the housing, it is necessary to arrange even the insertion part of the SIM card near the outside of the housing, so the degree of freedom of design is low. If the insertion part of the memory card is provided in the same way as the insertion part of the SIM card, the memory card cannot be inserted and removed unless the battery is detached from the battery holding part. This is inconvenient.

Therefore, preferably, there is provided a mobile terminal device having a structure suitable for insertion and removal of a card in a state with a battery held in a battery holding part without imposition of design restrictions.

Means for Solving the Problem

A mobile terminal device of the present invention has a housing having a battery holding part holding the battery and a cover member covering the battery holding part. In the battery holding part, a first card insertion part is provided in a region not concealed by the battery when the battery is held in the battery holding part and covered by the cover member. The first card insertion part in which the card inserted is covered together with the battery by the cover member.

Effects of the Invention

According to the present invention, there is provided a mobile terminal device having a structure suitable for insertion and removal of a card in a state with a battery held in a battery holding part without imposition of design restrictions.

EXPLANATION OF REFERENCES

BEST MODE FOR CARRYING OUT THE INVENTION

FIG. 1Ais a front view showing an appearance of a mobile phone1constituting a mobile terminal device according to an embodiment of the present invention in an open state.FIG. 1Bis a side view showing the appearance of the mobile phone1in the open state.FIG. 2is a back view (view from a deep side of the paper surface ofFIG. 1Aand from the right side of the paper surface ofFIG. 1B) showing the appearance of the mobile phone1in a closed state.

The mobile phone1is configured as a mobile terminal device having a so-called biaxial hinge. Specifically, the mobile phone1has a first housing3and second housing5(FIG. 1AandFIG. 1B) and a connecting housing7(FIG. 1AandFIG. 1B). The connecting housing7is connected to the first housing3so that it can turn relative to the first housing3about a first rotation axis A (FIG. 1A). Further, the connecting housing7is connected to the second housing5so that it can turn relative to the second housing5about a second rotation axis B (FIG. 1A). Note that, the first housing3, second housing5, and connecting housing7configure the housing of the mobile phone1as a whole.

The first housing3and the second housing5are formed in, for example, generally thin box shapes and are connected to each other at single ends in the longitudinal direction. The first housing3and the second housing5are formed so that their contours generally coincide with each other in the closed state as shown inFIG. 2. The first housing3, as shown inFIG. 1B, has a first region part3aopposite to the connecting housing7, a second region part3bon the connecting housing7side which is thicker than the first region part3a, and a border part3cbetween the first region part3aand the second region part3b.

In the first housing3, for example, as shown inFIG. 1A, at the surface facing the second housing5in the closed state, a sound pickup hole9of a microphone87(seeFIG. 15) for speaking and an operation part11accepting operations of the user are provided. Further, in the first housing3, for example, as shown inFIG. 2, at the back surface3fwhich becomes the opposite side to the second housing5in the closed state, sound holes10of a speaker85(seeFIG. 15) for reporting incoming call etc., an imaging part12, and charge terminals14for charging the mobile phone1are provided. Note that, the sound holes10, imaging part12, and charge terminals14are provided in the second region part3b.

In the second housing5, for example, as shown inFIG. 1A, a sound hole13of a speaker83(seeFIG. 15) for speaking and a main display part15for displaying images including graphics, text, etc. are provided. Note that, on the back surface of the second housing5, for example, a not shown sub-display part is provided.

Referring toFIG. 3andFIG. 4, a summary of the method of insertion/removal of a SIM card or other IC card or a memory card in the mobile phone1will be given.

FIG. 3Ais a perspective view showing the mobile phone1in the closed state from the back side of the first housing3(in a direction the same asFIG. 2) while detaching part of the members.

The first housing3is configured so that the battery17can be attached to and detached from the inside. Specifically, the first housing3has a housing body21(an example of the housing) provided with a battery holding part19for holding the battery17and has a cover member23which covers the battery holding part19and can be attached to and detached from the housing body21.

The battery holding part19is formed recessed in the first region part3aand the border part3cwith the back side as the recessed part. The cover member23is placed over on the battery holding part19. The cover member23forms a portion in the first region part3aand the border part3cin the back surface3fof the first housing3(the surface on the front side of the paper surface ofFIG. 2and the surface above the paper surface inFIG. 3A). Note that, in the housing body21, the portion of the second region part3bis thicker than the portion of the first region part3a.

FIG. 3Bis a partly enlarged view ofFIG. 3A. Specifically,FIG. 3Bshows a vicinity of the inner wall21aon the second region part3bside in the inner walls of the battery holding part19.

At the inner wall21a, a first card insertion part25in which the first card C1may be inserted and a second card insertion part27in which the second card C2may be inserted are provided. The second card insertion part27is opened at a position that becomes the upper side of the paper surface ofFIG. 3B(the side covered by the cover member23) relative to the first card insertion part25.

The first card C1is, for example, an SIM card or UIM card. The first card C1is for enabling replacement of the mobile phone or enabling utilization of a plurality of mobile phones while using the same phone number. The first card C1stores, for example, identification information specifying a carrier or subscriber of the communication system as information capable of specifying the phone number. The first card C1is formed, for example, in a generally rectangular shape.

The second card C2is, for example, a memory card such as an SD card or the like. The memory card is for suitably writing and reading information of music, images, or the like in accordance with an operation of the user on the operation part11. The second card C2is formed, for example, in a generally rectangular shape.

FIG. 4Ais a perspective view showing a state of holding the battery17in the battery holding part19from the state ofFIG. 3A.

The battery17is formed, for example, in a generally thin box shape. The planar shape of the battery holding part19is formed to a shape with which the battery17fits, that is, a generally rectangular shape. The battery holding part19is provided in the first region part3ato a depth of the same extent as the thickness of the battery17. Therefore, the surface of the battery17on the upper side of the paper surface ofFIG. 4A(the side covered by the cover member23) becomes generally the same plane as the surface on the upper side of the paper surface ofFIG. 4Ain the first region part3aof the housing body21.

FIG. 4Bis an enlarged view showing the vicinity of the inner wall21aofFIG. 4A.

As explained above, in the housing body21, the portion at the second region part3bis thicker than the portion at the first region part3a. Further, the battery17and the portions of the housing body21in the first region part3abecome generally the same plane in their surfaces at the upper side of the paper surface ofFIG. 4B. Therefore, in the inner wall21a, even when the battery17is held in the battery holding part19, the region on the upper side of the paper surface ofFIG. 4Bis not concealed by the thickness of the battery17(does not face the side surface of the battery17), but is exposed. Namely, the inner wall21ahas a covered region S1concealed by the thickness of the battery17and an exposed region S2not concealed by the thickness of the battery17(FIG. 3B).

Further, as shown inFIG. 3BandFIG. 4B, the first card insertion part25is provided in the covered region S1. Further, the second card insertion part27is provided in the exposed region S2. Therefore, insertion/removal of the first card C1to/from the first card insertion part25is permitted only in a state where the battery17is detached from the battery holding part19. On the other hand, insertion/removal of the second card C2to/from the second card insertion part27is permitted even in a state where the battery17is held in the battery holding part19.

However, the second card insertion part27is covered and concealed together with the battery17by the cover member23when the cover member23is attached to the housing body21(seeFIG. 2andFIG. 11).

Below, a detailed explanation will be given of the structure of the internal portion etc. of the mobile phone1relating to the first card C1and second card C2explained above.

FIG. 5is a perspective view showing the mobile phone1in the closed state by disassembly of the first housing3.

In the first housing3, from the lower side of the paper surface ofFIG. 5(the front side of the first housing3, the side facing the second housing5in the closed state), a front case29configuring the front side of the housing body21, a shield case31shielding a high frequency circuit etc., a main board33configured by a circuit board, a frame member35utilized for holding electronic parts and so on, a sub-board assembly37on which the first card C1and second card C2are mounted, a rear case39configuring the back side of the housing body21, and the above-explained battery17and cover member23are stacked.

Note that, in the first housing3, other than these, an FPC which is laid on the surface on the front case29side of the shield case31and is provided with a plurality of pressure switches etc., a key sheet which is covered on the FPC and is fixed with a key top41(FIG. 1), and other parts are provided.

Each of the front case29and rear case39is, for example, integrally shaped by resin. The front case29and rear case39are fixed to each other by, for example, a not shown screw inserted in a hole formed at one case (for example, the rear case39) being screwed into a screw boss formed in the other (for example, the front case29).

By mutual fastening of the front case29and the rear case39arranged facing each other, the key sheet, shield case31, main board33, and other various parts arranged between these are clamped between the front case29and the rear case39. Due to this, the various parts are fixed to the housing body21configured by the front case29and the rear case39.

The shield case31is formed by a metal or formed by resin on the surface of which a metal film is provided and has electrical conductivity. The shield case31is connected to a ground line of the main board33. The shield case31has ribs projecting to the main board33side and abutting against the main board33. The ribs extend vertically and laterally so as to partition the main board33.

The main board33is configured by, for example, a so-called rigid board using a hard resin as the base. The main board33has, for example, a broadness covering the first region part3aand second region part3b. The main board33is provided with, for example, a battery terminal43supplied with electric power from the battery17, a not shown high frequency circuit for wireless communication utilizing signals, and so on.

The battery terminal43has a terminal housing43aand a contact43b(seeFIG. 13) projecting from the terminal housing43a. The contact43bis biased to the projection direction by a not shown bias member (for example, spring) provided in the terminal housing43a. When the mobile phone1is assembled, the side of the battery terminal43from which the contact43bprojects is exposed from a terminal use opening44provided in the inner wall21a(seeFIG. 13). Then, when the battery17is held in the battery holding part19, the contact43belastically abuts against a not shown power terminal provided on the end surface on the inner wall21aside of the battery17. Note that, the terminal use opening44is provided by formation of a cutaway at an edge part on the main board33side of the inner wall21a. Further, the terminal use opening44is adjacent to the first card insertion part25and second card insertion part27.

Inner walls (including the inner wall21a) of the battery holding part19explained above are configured by the rear case39. Therefore, the first card insertion part25and second card insertion part27are also provided in the rear case39. In the rear case39, a through hole21his formed in a portion where the battery holding part19is formed. The main board33is exposed at the back side of the housing body21from the through hole21hand configures the bottom surface of the battery holding part19. Note that, an insulating seal etc. may be adhered to the portion of the main board33which is exposed from the through hole21has well.

FIG. 6Ais a perspective view showing the frame member35from the back surface3fside of the first housing3(the side covered by the cover member23). FIG.6B is a perspective view showing the frame member35from the main board33side.

The frame member35is, for example, integrally formed by a resin. The frame member35is formed to, for example, a generally thin member as a whole. The frame member35has a first holding part35aholding the sub-board assembly37on the back surface3fside, a second holding part35bholding the speaker85(seeFIG. 15) reporting incoming calls etc. on the back surface3fside, a positioning part35dfor positioning a not shown cable for connecting electronic circuits in the first housing3and electronic circuits in the second housing5, and so on.

The first holding part35ais configured by, for example, as shown inFIG. 6A, provision of a side wall part35faround a plate-like base part35e. Therefore, in the first holding part35a, a recessed part35gis formed on the sub-board assembly37side. The planar shape of the recessed part35gis, for example, a rectangle.

In the frame member35, a hole part35hin which a screw45(seeFIG. 13) is inserted is formed. The screw45is inserted into the hole part35hand the hole part33h(FIG. 5) formed in the main board33and screwed with a internal thread part31h(FIG. 5) formed in the shield case31. Due to this, the frame member35is fixed to the main board33. Note that, between the frame member35and the main board33, space for arrangement of electronic parts mounted on the main board33is formed (seeFIG. 11).

FIG. 7is a perspective view showing the sub-board assembly37from the back surface3fside (side covered by the cover member23).

The sub-board assembly37has a sub-board47, a first card holder49in which the first card C1is mounted, and a second card holder51in which the second card C2is mounted. The first card holder49is mounted at one surface of the sub-board47(the surface on the lower side of the paper surface ofFIG. 7, the surface on the frame member35side). The second card holder51is mounted on the other surface of the sub-board47(the surface on the upper side of the paper surface ofFIG. 7, the surface on the rear case39side). Note that, the sub-board assembly37has, other than these, an IC for driving the imaging part12and other suitable parts which are mounted on the sub-board47.

The sub-board47is, for example, configured by a so-called rigid board using a hard resin as the base. The outer shapes of the first card holder49and the second card holder51are formed by, for example, a metal. A space capable of holding the first card C1is formed in the first card holder49. In the space, a not shown terminal connecting the first card C1and the sub-board47is provided. In the same way, a space capable of holding the second card C2is formed in the second card holder51. In the space, a not shown terminal connecting the second card C2and the sub-board47is provided.

The second card holder51is configured so as to insert and remove the second card C2by the so-called “push-push” method. Namely, at the time of insertion of the second card C2, the second card C2is inserted deeper than a predetermined position whereby it is locked in the second card holder51. At the time of removal of the second card C2, locking is released and removal of the second card C2becomes possible by pushing it again deeper than the predetermined position. Further, the second card C2projects from the second card holder51by a predetermined amount by the biasing force of a spring or the like. Therefore, the second card C2must project from the second card insertion part27in a state mounted at the second card holder51. The method of insertion and removal of the first card C1to/from the first card holder49will be explained later.

The sub-board assembly37is positioned by fitting the first card holder49in the recessed part35gformed in the first holding part35aof the frame member35. At this time, the sub-board47is placed (stacked) on the side wall part35fof the first holding part35a. Then, when the front case29and the rear case39are fixed, the sub-board47is clamped by the side wall part35fand the rear case39, whereby the sub-board assembly37is fixed to the first housing3.

FIG. 8is a perspective view showing the inner side surface of the cover member23.

The cover member23is, for example, integrally shaped by a resin. The cover member23is formed in generally a plate shape as a whole. Specifically, the cover member23has a flat plate part23aof a flat plate shape configuring the back surface of the first region part3a, an inclined part23bconfiguring the back surface of the border part3cand inclined relative to the flat plate part23a, and a curved part23cof a curved shape configuring the back surface of the end part on the first region part3aside of the first housing3.

On the inner side surface of the flat plate part23a, a guided part23dfor guiding the cover member23in the long direction of the housing body21(left/right direction on paper surface ofFIG. 8, the same direction as the insertion direction of the second card C2) with respect to the housing body21is provided. The guided part23dis formed in, for example, a wall state along the edge part of the flat plate part23aon the sideward side of the flat plate part23aand is inserted in a not shown guide groove provided in the housing body21. Due to this, the cover member23is positioned in a short direction of the housing body21and is guided in the long direction of the housing body21.

In the cover member23, a plurality of engaged parts engaged with the housing body21when sliding the cover member23in the longitudinal direction of the housing body21with respect to the housing body21are provided in suitable shapes at suitable positions. For example, the curved part23cis provided with end side engaged parts23eprojecting to the slide direction of the cover member23. The end side engaged parts23eare inserted into engagement holes21e(FIG. 4A) provided in the housing body21, engaged with the housing body21toward the back side (upper side of the paper surface ofFIG. 4A, lower side of the paper surface ofFIG. 8), and prevent separation of the cover member23to the back surface side from the housing body21. Further, for example, on the side surface of the guided part23d, a plurality of L-shaped sideward side engaged parts23fpreventing separation of the cover member23to the back surface side from to the housing body21are provided.

FIG. 9is a perspective view showing the vicinity of the inclined part23bof the cover member23from the inside.FIG. 10is a perspective view showing the vicinity of the inner wall21aof the housing body21and the vicinity of the inclined part23bof the cover member23from the outside.

The inclined part23bis provided with inner wall side engaged parts23gand a slide engaged part23jengaged with the housing body21when sliding the cover member23in the longitudinal direction of the housing body21with respect to the housing body21in the same way as the above-explained end side engaged parts23eetc.

The inner wall side engaged parts23gare formed so as to project from the inclined part23bto the upper side of the paper surface ofFIG. 9andFIG. 10(second region part3bside). Further, the inner wall side engaged parts23gare inserted in engagement holes21gformed in the inner wall21aas shown inFIG. 10. Due to this, separation of the cover member23to the back surface side from the housing body21is prevented.

The slide engaged part23jhas an extended part23mextending to upper side of the paper surface ofFIG. 9andFIG. 10from the inclined part23band an engagement projection part23nprojecting from the extended part23mto the outer surface side of the cover member23(deep side of the paper surface ofFIG. 9, front side of the paper surface ofFIG. 10). On the other hand, in the inner wall21a, an engagement hole21jin which the slide engaged part23jis to be inserted is formed as shown inFIG. 10. An opening edge21non the upper side of the paper surface ofFIG. 10of the engagement hole21jprojects from the inner side surface of the housing body21to the center direction of the engagement hole21jalthough it is not particularly shown.

Therefore, when the cover member23is slid to the upper side of the paper surface ofFIG. 10relative to the housing body21, due to elastic deformation of the extended part23mand the inclined part23bin the base portion of the extended part23m(region where the slide engaged part23jis provided) etc., the engagement projection part23npasses over the opening edge21n. Then, the engagement projection part23nengages with the opening edge21nfrom the inside of the inner wall21a(upper side of the paper surface ofFIG. 10) to the outside (lower side of the paper surface ofFIG. 10). Due to this, sliding in the detachment direction of the cover member23from the housing body21(downward direction of the paper surface ofFIG. 10) is prohibited.

Further, when detaching the cover member23from the housing body21, the user presses the portion of the extended part23min the inclined part23bfrom the outer side surface side to the inner side surface side of the cover member23. Due to this, the inclined part23belastically deforms, engagement of the engagement projection part23nwith the opening edge part21nbecomes weak, and sliding of the cover member23to the detachment direction from the housing body21becomes possible.

As shown inFIG. 10, on the outer side surface of the cover member23, in the base portion of the extended part23m, that is, a portion able to weaken the engagement of the slide engaged part with the housing body21by pressing, a press mark23kfor prompting a pressing action by the user is provided. The press mark23kis, for example, formed by a projection part integrally shaped with the cover member23.

The engagement hole21j, slide engaged part23j, and press mark23kare provided at positions where they are not superposed over the second card insertion part27when seen from the back side of the housing body21(side covered by the cover member23).

FIG. 10also shows the first card insertion part25and second card insertion part27enlarged. The first card insertion part25is configured so that the first card C1can be inserted into the housing body21so as to face the back surface of the housing body21(the surface on the side covered by the cover member23, the surface on front side of the paper surface ofFIG. 10). Namely, the first card insertion part25is formed in a slit shape having the left/right direction of the paper surface ofFIG. 10(direction along the back surface and inner wall21aof the housing body21) as its long direction. In the same way, the second card insertion part27is formed in a slit shape so that the second card C2can be inserted into the housing body21so as to face the back surface of the housing body21and has the left/right direction of the paper surface ofFIG. 10as its long direction.

In the second card insertion part27, the guide part27aguiding insertion of the second card C2is formed so as to extend to the battery holding part19side (lower side of the paper surface ofFIG. 10) (seeFIG. 13as well). The guide part27ais formed in a rectangular shape (U-shape) with the side covered by the cover member23opened when viewed in the insertion direction of the second card C2. Namely, the guide part27ahas two sideward guide parts27babutting against the edge part of the second card C2and guiding the second card C2and an inside guide part27cabutting against the second card C2opposite to the cover member23and guiding the second card C2.

FIG. 11is a perspective view showing a cross-section of the mobile phone1along the XI-XI line inFIG. 10.FIG. 12Ais a cross-sectional view showing the generally same cross-section as that inFIG. 11.FIG. 12Bis a cross-sectional view of the mobile phone1along the XIIb-XIIb line inFIG. 10.

As explained above, in the first region part3aon the main board33, the battery17and the cover member23are sequentially stacked. Further, in the second region part3bon the main board33, the frame member35, first card holder49, sub-board47, second card holder51, and rear case39are sequentially stacked. The first card C1is mounted in the first card holder49, and the second card C2is mounted in the second card holder51.

The first card holder49continues to the first card insertion part25. The first card C1is inserted from the first card insertion part25and mounted in the first card holder49. In the same way, the second card holder51continues to the second card insertion part27. The second card C2is inserted from the second card insertion part27and mounted in the second card holder51.

As explained above, the second card holder51is a push-push type holder. Therefore, the second card insertion part27and second card holder51are arranged so that the end part of the second card C2projects from the inner wall21ato the battery holding part19side in the state with the second card C2mounted in the second card holder51. Note, the end part of the second card C2does not project to the battery holding part19side more than the guide part27a, but only the surface on the cover member23side is exposed.

When the battery17is held in the battery holding part19, the end part on the inner wall21aside is fit between the main board33and the guide part27a. In other words, the guide part27acan engage with the battery17from the side covered by the cover member23.

The housing body21and the cover member23are provided with ribs etc. near the inner wall21afor improving the strength of the mobile phone1. Specifically, this is as follows.

As shown inFIG. 11,FIG. 12A, andFIG. 12B, at the inner side surface of the inclined part23b, ribs53projecting to the internal side of housing are provided. The ribs53have a battery abutment rib53awhich can abut against the surface of the cover member23side of the battery17and a guide abutment rib53bwhich can abut against the side of the inside guide part27ccovered by the cover member23. Therefore, when an outer force F1(FIG. 11andFIG. 12B) is applied to the end part of the inner wall21aside of the cover member23, the load is supported through the ribs53by the inside guide part27cand battery17.

As shown inFIG. 9, the battery abutment rib53ahas, for example, a straight portion crossing the cover member23in the direction along the end part on the inner wall21aside of the cover member23and a portion extending in a rectangular shape on the side nearer the inner wall21athan that straight portion. Further, the guide abutment rib53bextends in, for example, a rectangular shape on the side nearer the inner wall21athan the battery abutment rib53a.

As shown inFIG. 11,FIG. 12A, andFIG. 12B, the guide abutment rib53bis provided so that it can abut against the end part of the battery holding part19side of the second card C2inserted in the second card insertion part27in the insertion direction. Note that, the second card C2referred to here which can be abutted against by the guide abutment rib53band is inserted in the second card insertion part27may be mounted in the second card holder51or need not be completely mounted in the second card holder51, but be at least partly inserted in the second card insertion part27. Preferably, it is mounted in the second card holder51.

Further, as shown inFIG. 12B, two sideward guide parts27bcan abut against the inner side surface of the cover member23. Therefore, when the outer force F1(FIG. 11andFIG. 12B) is applied to the end part on the inner wall21aside of the cover member23, the load is supported by the two sideward guide parts27b. Namely, the cover member23is supported by the guide part27aat the two ends in the longitudinal direction of the second card insertion part27.

As shown inFIG. 9,FIG. 10,FIG. 11, andFIG. 12A, the cover member23is provided with a cover side extended part55which projects from the end part of the cover member23abutting against the inner wall21a. The cover side extended part55, as shown inFIG. 11andFIG. 12A, enters into the second card insertion part27and abuts against the inner side surface of the back part of the housing body21(the portion covering the second card C2). Therefore, when an outer force F2is applied to the vicinity of the inner wall21aof the back of the housing body21, the load is supported through the cover side extended part55by the cover member23.

As shown inFIG. 10andFIG. 12B, the housing body21is provided with housing side extended parts57(seeFIG. 13as well) projecting from the inner wall21a. The housing side extended parts57abut against the inner side surface of the end parts of the cover member23abutting against the inner wall21a. Therefore, as shown inFIG. 12B, when the outer force F1is applied to the vicinity of the inner wall21aof the back of the cover member23, the load is supported through the housing side extended parts57by the housing body21and dispersed to the direction of the second card holder51or the like.

Note that, as shown inFIG. 10, the cover side extended part55is provided so as to be located at, for example, generally the center in the longitudinal direction of the second card insertion part27when the cover member23is attached to the housing body21. The housing side extended parts57are provided, for example, at the two ends (two sides of the cover side extended part55) in the longitudinal direction of the second card insertion part27. Further, as shown inFIG. 11,FIG. 12A, andFIG. 12B, the second card C2projects to the battery holding part19side from the edge part of opening on the upper side of the paper surface on the cover member23side of the second card insertion part27. The cover side extended part55and housing side extended parts57are superposed at the end part on the battery holding part19side of the second card C2.

The ribs53may abut against the guide part27aor battery17in a state where the outer force F1or F2is not applied as well. Further, the ribs53may approach the guide part27aor battery17with a relatively minute clearance so as to abut by elastic deformation of the first housing3when the outer force F1or outer force F2is applied. Note, when a clearance is provided, the clearance between the ribs53and the guide part27aor battery17is set smaller than a clearance between the end part projecting from the inner wall21aof the second card C2and the end part abutted against the inner wall21aof the cover member23.

As shown inFIG. 12AandFIG. 12B, the second card holder51also contributes to protection of the second card C2by receiving the outer force F1and outer force F2. The second card holder51may abut against the housing body21as well in a state where the outer force F1or outer force F2is not applied. Further, the second card holder51may approach the housing body21with a relatively minute clearance as well so as to abut by elastic deformation of the housing body21when the outer force F1or outer force F2is applied. Note, when a clearance is provided, the clearance between the second card holder51and the housing body21is set smaller than the clearance between the end part projected from the inner wall21aof the second card C2and the housing body21(or the end part abutted against the inner wall21aof the cover member23).

FIG. 13is a perspective view showing the vicinity of the inner wall21awhen detaching the battery17from the battery holding part19.FIG. 14is a cross-sectional view along the XIV-XIV line inFIG. 13. Note that, parts are suitably omitted in the diagrams, for example, the sub-board assembly37is omitted inFIG. 13.

The mobile phone1has a slide member59for conveying the first card C1into the first card insertion part25. The first card C1is placed on the surface on the cover member23side of the slide member59(upper side on the paper surface ofFIG. 13andFIG. 14) and inserted together with the slide member59into the first card holder49through the first card insertion part25.

The slide member59is formed in a generally plate shape as a whole and is formed in a size large enough to be inserted into the first card insertion part25and first card holder49. As shown inFIG. 13, from the sideward edge parts of the slide member59, limit parts59awhich are inserted in limit grooves49a(FIG. 7) formed in the side surfaces of the first card holder49project. The limit grooves49aextend in the insertion direction of the first card C1. At the time of assembly of the mobile phone1, the slide member59is inserted from the first card insertion part25into the first card holder49in a state elastically deformed so as to reduce the size of the recess part59b(FIG. 13). Then, the limit parts59aare inserted into the limit grooves49a. Due to this, the movable range of the slide member59is limited to within a range where the limit parts59acan move in the limit grooves49a.

Note that, as shown inFIG. 7, the width of the limit grooves49abecomes broader toward the opposite side from the sub-board47at the center. Therefore, the slide member59is positioned at the sub-board47side at the pullout limit and insertion limit, the amount of room in the up/down direction (the direction perpendicular to the slide direction) becomes smaller, and separation from the sub-board47becomes possible in the middle. As a result, when the first card C1is placed on the slide member59(pullout limit), looseness of the slide member59becomes harder to occur, so the first card C1is easily placed. In the middle of insertion/removal of the slide member59(between the pullout limit and the insertion limit), friction between the first card C1and the sub-board47is reduced, insertion is facilitated, and the first card C1is protected. Further, at the insertion limit, looseness of the slide member59becomes harder to occur, so the first card C1reliably contacts the terminal. Note that, SIM cards and UIM cards are provided with flat terminals on surfaces of the cards (for example, surfaces on the sub-board47side).

As shown inFIG. 13andFIG. 14, the slide member59is provided with operated part59cfor making pullout of the slide member easy. The operated part59cis provided at the edge on the battery holding part19side of the plate shaped part of the slide member59and projects from the plate shaped part to the cover member23side. Namely, the operated part59ccan be hooked by the fingernail or fingertip of the user.

The frame member35has a structure for improving the strength of the mobile phone1by utilizing the first card insertion part25. Specifically, this is as follows.

As shown inFIG. 13andFIG. 14, the end part on the first card insertion part25side of the frame member35is provided with the engagement part35cwhich is inserted in the first card insertion part25and engages with the inner wall21a. The engagement part35cis, for example, as shown inFIG. 13, inserted in the first card insertion part25in the end part near the center of the housing in the longitudinal direction of the first card insertion part25(the end part on the battery terminal43side in the present embodiment). The engagement part35cengages with, for example, the portion on the lower side of the paper surface ofFIG. 13(main board33side, opposite to the cover member23) of the edge part of the opening of the first card insertion part25. The engagement part35cis formed in, for example, a right triangle shape projecting more to the battery holding part19side the more toward the main board33side.

By engagement of the frame member35with the inner wall21a, separation of the frame member35from the rear case39becomes harder to occur. The main board33is fixed to the frame member35(hole part35hinFIG. 6) by the screw45, therefore separation of the main board33from the rear case39also becomes harder to occur. Note that, as shown inFIG. 13, the engagement part35cand hole part35hare arranged adjacent to each other when viewed on a plane.

Note that, the operated part59cof the slide member59explained above is provided at a position where it is superposed over the engagement part35cin the slide direction of the slide member59. Therefore, when the slide member59moves to the insertion limit, the engagement part35cis concealed by the operated part59c.

FIG. 15is a block diagram showing the configuration of the signal processing system of the mobile phone1.

The mobile phone1is provided with a CPU71, memory73, communication processing part75, acoustic processing part77, and image processing part79. These parts are configured by for example an IC provided on the main board33.

The CPU71and memory73function as the control parts performing predetermined computations based on signals from the operation part11and other various means and executing control of the image processing part79and other various means.

The communication processing part75is configured including a high frequency circuit. The communication processing part75communicates with another mobile terminal device or a server through a communication system (telephone network or Internet) by wireless communication utilizing signals. Specifically, the communication processing part75modulates acoustic data, image data, and other various types of data processed at the CPU71and transmits signals obtained by the modulation through an antenna81. Further, the communication processing part75demodulates signals received through the antenna81and outputs data obtained by the demodulation to the CPU71.

When the communication processing part75communicates through the telephone network, information stored in the first card C1is read out and used. Namely, the CPU71reads out the information stored in the first card C1and capable of specifying the phone number linked with the first card C1. The CPU71selects the signal to be received based on the read out information and includes in the signal to be transmitted information capable of specifying the sender side (the phone number linked with the first card C1). Note that, the phone number is basically linked with the subscriber of the telephone network, so the information capable of specifying the phone number can be grasped as information capable of specifying the subscriber.

The acoustic processing part77converts the acoustic data from the CPU71to an electric signal and outputs the electric signal to the speaker83for speaking and the speaker85for reporting reception etc. The speaker83and the speaker85convert the electric signal from the acoustic processing part77to sound which they then output. On the other hand, the microphone87converts input sound to an electric signal and outputs the electric signal to the acoustic processing part77. The acoustic processing part77converts the electric signal from the microphone87to acoustic data and outputs the acoustic data to the CPU71.

The image processing part79converts the image data from the CPU71to an image signal and outputs the image signal to a display part such as a main display part15. Further, it converts an imaging signal (image data) output from a predetermined camera module89to image data in a predetermined format and outputs the image data to the CPU71.

Information is suitably written and information is suitably read out to and from the second card C2in response to an operation on the operation part11by the user. For example, the second card C2records music data and image data downloaded through the communication processing part75and image data generated by imaging of the camera module89. Further, for example, the CPU71reads out the music data recorded in the second card C2and outputs the music data to the acoustic processing part77or reads out the image data recorded on the second card C2and outputs the image data to the image processing part79.

According to the above embodiment, from a first viewpoint, the following advantageous effects are obtained.

The mobile phone1has the housing body21having the battery holding part19holding the battery17formed in it and the cover member23covering the battery holding part19. At the inner wall21aof one of the inner walls of the battery holding part19, the second card insertion part27is provided in the region which does not face the side surface of the battery17when the battery17is contained in the battery holding part19and the region S2covered by the cover member23. The mobile phone1can attach the cover member23to the battery holding part19in the state with the second card C2inserted in the second card insertion part27. Therefore, the second card C2can be removed and inserted while the battery17is held in the battery holding part19as it is, i.e., in other words, while the power of the mobile phone1is on as it is. Further, the cover member23covering the battery17can be concurrently used for covering the second card insertion part27. As a result, for example, it becomes unnecessary to provide a cap especially for the insertion portion of the second card C2, therefore the design property of the appearance is improved and the number of parts is decreased.

In the second card insertion part27, the guide part27aguiding the insertion of the card is formed so as to extend to the battery holding part19side. The cover member23has the cover side extended part55which enters into the second card insertion part27and can support the portion of the housing body21covering the second card C2(back part) from the second card C2side. The guide part27ais configured so that the cover member23can be supported by the portion which is not superposed on the second card C2in the covering direction of the cover member23from the internal side of the battery holding part19. Therefore, as shown inFIG. 12A, the outer force F2applied to the portion of the housing body21covering the second card C2is propagated through the cover side extended part55to the cover member23and further propagated to the portion of the guide part27awhich is not superposed on the second card C2. As a result, the outer force F2is hard to propagate to the second card C2, so breakage of the second card C2hardly occurs. In the state where the second card C2is mounted in the second card holder51, the end part of the card C2projects from the second card holder51to the battery holding part19side. Therefore, when a portion at the back part of the housing body21on the cover member23side is pressed, the second card C2is directly pressed by the back part of the housing body21, so there is a concern over breakage. However, occurrence of such breakage is effectively reduced according to the present embodiment.

Further, naturally, even at the time when the outer force F1(FIG. 12B) is applied to the cover member23, by support of the cover member23by the guide part27a, the second card C2is protected.

FIG. 16is a cross-sectional view showing a comparative example for explaining the advantageous effects of the present embodiment. In the mobile terminal device of the comparative example, a cover member123is not supported by the guide part27a. On the other hand, in the second card C2, in the same way as the present embodiment, the end part projects from the inner wall in the state mounted on the second card holder51, and the end part of the cover member123is superposed on this end part. Therefore, when the outer force F1is applied to the end part of the cover member123, the cover member123is bent downward at the paper surface ofFIG. 16and abuts against the end part of the second card C2, so there is a concern over breakage of the second card C2.

However, as shown inFIG. 12B, in the present embodiment, even when the outer force F1is applied to the cover member23, the cover member23is supported by the guide part27a, so breakage of the second card C2hardly occurs.

Further, bending of the cover member23is reduced, so the squeaking noise is reduced. The waterproof property between the inner wall21aand the cover member23is improved by the cover side extended part55. The distance from the outside of the housing to the inside becomes long due to the cover side extended part55, so static electricity becomes hard to enter through a gap between the inner wall21aand the cover member23.

The second card insertion part27is configured so that the end part of the second card C2projects from the inner wall21aprovided with the second card insertion part27to the battery holding part19side when the second card C2is mounted. The cover member23is attached to the housing body21so that its end part is abutted against the inner wall21aprovided with the second card insertion part27and this end part is superposed on the end part of the second card C2. The housing body21has the housing side extended parts57which extend to the battery holding part19side from the inner wall21aprovided with the second card insertion part27and can support the end part of the cover member23abutted against the inner wall21a. Therefore, the second card C2is protected even when outer force is applied to the cover member23.

As explained with reference toFIG. 16, when the outer force F1is applied to the end part of the cover member123, there is a concern over breakage of the second card C2. However, as shown inFIG. 12B, in the present embodiment, the end part of the cover member23is supported by the housing side extended parts57. Therefore, bending of the cover member23is reduced and the second card C2is protected. Further, the housing side extended parts57enable improvement of the waterproof property, reduction of entry of static electricity, and other advantageous effects in the same way as the cover side extended part55explained above.

The second card insertion part27is formed with the direction along the cover member23as its long direction. The guide part27ais configured so that the cover member23can be supported at the two ends in the longitudinal direction of the second card insertion part27. For this reason, the cover side extended part55supporting the housing body21to which the outer force F2is applied will be supported at the two ends by the guide part27a. Therefore, the outer force F2can be reliably dispersed to a position not superimposed on the second card C2, so the second card C2is protected.

The guide part27ais configured so that it can abut against the battery17held in the battery holding part19from the side covered by the cover member23. Therefore, the guide part27anot only guides the second card C2and supports the cover member23, but also concurrently presses the battery17. Further, when the outer force F1or outer force F2is applied, the back surface of the housing body21and the guide part27asupporting the cover member23are supported upon the battery17, therefore the strength of the mobile phone1is improved. As a result, smaller size and improvement of strength of the mobile phone1are further achieved.

The cover member23has the ribs53which project from the inner side surface of the cover member23, can abut against the surface of the cover member23side of the battery17, and can abut against the end part on the battery holding part19side of the second card C2inserted in the second card insertion part27in the insertion direction. Therefore, as shown inFIG. 12AandFIG. 12B, the outer force F2applied to the housing body21and the outer force F1applied to the cover member23can be released to the battery17. Further, detachment of the second card C2becomes harder (amount of projection of the second card C2from the second card insertion part27is reduced). When attaching the cover member23to the housing body21, the second card C2may not be completely mounted in the second card holder51. In this case, the amount of projection of the second card C2from the second card insertion part becomes larger. However, by sliding the cover member23to the inner wall21aside, the second card C2is pushed by the ribs53. Namely, the amount of projection of the second card C2from the second card insertion part27is reduced. By suppression of the amount of projection of the second card C2from the second card insertion part27to a predetermined amount or less, the end part of the second card C2on the battery holding part19side becomes harder to abut against a low portion of the inclined part23bof the cover member23or the flat plate part23a. As a result, addition of load from the outside of the housing to the end part of the second card C2becomes a little, so occurrence of breakage of the second card C2is reduced.

The housing body21has the opening edge part21nas the engaging part at the inner wall21aprovided with the second card insertion part27. The cover member23has the slide engaged part23jand the press mark23k. The slide engaged part23jengages with the opening edge21nwhen the cover member23is attached to the housing body21. Further, the slide engaged part23jis configured so that the engagement with the opening edge21nbecomes weaker as the position goes toward the inner side surface of the cover member23due to the elastic deformation of the cover member23. The press mark23kis formed on the outer side surface in the region where the slide engaged part23jis provided. Further, the press mark23kis provided at a position where it is not superposed on the second card insertion part27. Therefore, when detaching the cover member23, addition of force to the vicinity of the second card insertion part27becomes small, so the second card C2is protected.

At the inner wall21aprovided with the second card insertion part27, the first card insertion part25is provided at a position opposite to the side covered by the cover member23from the guide part27a. Therefore, due to opening of the first card insertion part25in the inner wall21a, there is a concern over lowering of strength of the inner wall21a. However, the inner wall21ais supported by the battery17through the guide part27a, so the strength of the inner wall21ais increased.

Further, according to the above embodiment, from a second viewpoint, the following advantageous effects are obtained.

The mobile phone1has the housing body21having the battery holding part19holding the battery17formed in it and the cover member23covering the battery holding part19. In the battery holding part19, the first card insertion part25is provided in a region concealed by the battery17and the second card insertion part27is provided in a region not concealed by the battery17when the battery17is held in the battery holding part19. The second card insertion part27is covered together with the battery17by the cover member23. Therefore, both of the first card C1which is not preferably inserted and removed when the power is turned on and the second card C2which can be inserted or removed when the power is turned on are suitably inserted and removed. Further, a cap for the second card insertion part27becomes unnecessary, so the number of parts is decreased.

The second card insertion part27is provided at one of the inner walls of the battery holding part19. Therefore, for example, when the battery holding part19is thin type (shape where the inner walls are low and the bottom surface is wide), the present embodiment is more advantageous for making the mobile terminal device thin compared with the aspect wherein the second card insertion part27is provided on the bottom surface of the battery holding part19. Further, for example, when the battery holding part19is deep (shape where the inner walls are low and the bottom surface is narrow), in the present embodiment, compared with the aspect wherein the second card insertion part27is provided on the bottom surface of the battery holding part19, it is not necessary to insert it deep in the battery holding part19, so insertion/removal is easy.

The first card insertion part25is provided, in the inner wall21aprovided with the second card insertion part27, in the region facing the side surface of the battery17in the state with the battery17held in the battery holding part19. Therefore, advantageous effects the same as advantageous effects by provision of the second card insertion part27at the inner wall21aexplained above, that is, advantageous effects of reduction of thickness and facilitation of insertion/removal are obtained. Further, the first card C1and second card C2are inserted and removed to/from the same surface and arranged adjacent to each other. As a result, as the entire housing, the structure is simplified, insertion/removal is facilitated, and the size is reduced.

The mobile phone1has the sub-board47provided in the housing body21, the first card holder49which continues to the first card insertion part25and in which the first card C1inserted from the first card insertion part25is mounted, and the second card holder51which continues to the second card insertion part27and in which the second card C2inserted from the second card insertion part27is mounted. The first card holder49is mounted on one surface of the sub-board47, while the second card holder51is mounted on the other surface of the sub-board47. Therefore, the structure for holding the first card C1and second card C2is reduced in size as a whole, and assembly of the mobile phone1is facilitated. The technique of stacking the first card holder and second card holder, forming the first card insertion part in the battery holding part, and forming the second card insertion part in the outside of the housing is known. However, in this technique, even the second card holder must be provided at the outside of the housing, so the degree of freedom of design is low. In the present embodiment, however, the second card holder51can be arranged at a suitable position so far as it is a position along the inner wall21a, so the degree of freedom of design becomes higher.

In the second card insertion part27, the guide part27aguiding the insertion of the card is formed so as to extend to the battery holding part19side. The guide part27acan engage with the battery17held in the battery holding part19from the side covered by the cover member23. Therefore, as explained above, the guide part27aconcurrently presses the battery17, so the number of parts is decreased and the mobile phone1is reduced in size. In addition, the structure becomes one where that the battery17is arranged adjacent to the stacked first card holder49and second card holder51, therefore it is made a very compact size as a whole.

The mobile phone1has the battery terminal43which is exposed from the inner wall21aprovided with the second card insertion part27to the battery holding part19, contacts the battery17, and is supplied with electric power from the battery17. By the biasing force of the battery terminal43, the battery17and the battery terminal43reliably become conductive. When the battery17is mounted in the battery holding part19, it is fit in the battery holding part19from the end part on the inner wall21aside. After this end part is pushed against the battery terminal43, the end part opposite to the inner wall21ais fit in the battery holding part19. At this time, due to the biasing force of the battery terminal43, floating of the end part on inner wall21aside of the battery17is reduced by the guide part27a, so the battery17is easily mounted.

The cover member23has the ribs53which project from the inner side surface of the cover member23, can abut against the surface of the battery17on the cover member23side, and can abut against the end part of the second card C2inserted in the second card insertion part27in the insertion direction on the battery holding part19side. Therefore, detachment of the first card C1is reduced by the battery17. Further, floating of the battery17and detachment of the second card C2are reduced by the cover member23. Namely, detachment of the first card C1and second card C2is reduced by the cover member23, and the mobile phone1is reduced in size.

The mobile phone1has the communication part (CPU71and communication processing part75) communicating with another mobile terminal device through a communication system (telephone network etc.) and the operation part11accepting operation of the user. The first card C1is the card storing the information referred to by the CPU71and capable of specifying the subscriber (phone number) of the communication system. The second card C2is the card for which writing and reading are carried out in response to the input operation to the operation part11. Therefore, the mobile phone1can suitably mount an SIM card etc. the insertion/removal of which in the powered state is not preferred, and an SD card etc., for which insertion/removal is preferably carried out in the powered state.

Further, according to the above embodiment, from a third viewpoint, the following advantageous effects are obtained.

The mobile phone1has the housing body21having the battery holding part19holding the battery17formed in it, the cover member23covering the battery holding part19, the main board33provided in the housing body21, the first card holder49which is provided in the housing body21and in which the first card C1is inserted, and the frame member35provided in the housing body21, fixed to the main board33, and holding the first card holder49. At the inner wall21aof one of the inner walls of the battery holding part19, the first card insertion part25continuing to the first card holder49is provided. The frame member35has the engagement part35cwhich is inserted in the first card insertion part25and engages with the inner wall21a. Therefore, displacement of the main board33relative to the housing body21is reduced through the frame member35holding the first card holder49. In general, fastening the main board33to the housing body21by forming a screw boss at the center of the housing body21and inserting a screw is difficult from the viewpoints of securing internal space of the housing body21and design of the housing surface. In the present embodiment, however, the main board33is engaged with the housing body21by utilizing the formation the first card insertion part25and the inner wall21aprovided at relatively the center of the housing body21. Therefore, the main board33can be fixed to the housing body21without causing an increase of the number of parts, reduction of the internal space of the housing body21, lowering of the degree of freedom of design of the surface of the housing body21, and other disadvantages. As a result, when a shock is applied to the mobile phone1, for example, at the time when the mobile phone1is dropped, occurrence of positional deviation of the main board33and breakage due to bending are reduced. In the present embodiment, from the viewpoint of reduction of thickness of the mobile phone1, the main board33is provided from the second region part3bto the first region part3aand configures the bottom part of the battery holding part19. For this reason, the main board33becomes easy to bend in a direction of separation from the rear case39due to the load of the battery17. However, since separation from the rear case39is made harder to occur at the center of the main board33, lowering of strength due to reduction of thickness is compensated for, and reduction of thickness and maintenance of strength are achieved.

The first card insertion part25is provided, among the inner walls of the battery holding part19, in the region where it faces the side surface of the battery17when the battery17is held in the battery holding part19. Therefore, entry of dust or moisture to the internal side of the housing from the first card insertion part25is suppressed by the battery17. Therefore, even if the first card insertion part25is further expanded from a size large enough to insert only the first card C1to a size capable of inserting the engagement part35c, dust and moisture hardly enter it.

At the inner wall21aprovided with the first card insertion part25, the second card insertion part27is provided in a region not concealed by the battery17and the region S2covered by the cover member23. In the housing body21, the second card holder51in which the second card C2inserted from the second card insertion part27is mounted is provided. Therefore, insertion/removal of the second card C2such as an SD card becomes possible with the battery17held in the battery holding part19. Then, the engagement part35cinserted in the first card insertion part25is concealed by the battery17, so the engagement part35cis not viewed when the second card C2is inserted and removed, therefore the design property is not lowered by the engagement part35c.

The mobile phone1has the sub-board47provided in the housing body21. The first card holder49is mounted on one surface of the sub-board47, while the second card holder51is mounted on the other surface of the sub-board47. The frame member35holds the sub-board47. Therefore, the structure relating to card insertion is reduced in size and the assembly is facilitated. Further, by engagement of the frame member35with the inner wall21a, positioning of the first card holder49and second card holder51to the first card insertion part25and second card insertion part27is reliably carried out as well. Consequently, impossible insertion/removal of the first card C1and second card C2due to falling or other shock hardly even occurs.

The mobile phone1has the slide member59on which the first card C1is mounted and which is inserted and removed to/from the first card insertion part25by slide movement with respect to the first card holder49. The slide member59has the operated part59cexposed through the first card insertion part25at the battery holding part19. The operated part59cis formed at a position overlapping the engagement part35cin the slide direction. Therefore, the engagement part35cfunctions as a stopper as well. This makes deep entry of the operated part59cinto the first card insertion part25hard. As a result, the ease of detachment of the first card C1can be secured while simplifying the structure.

The mobile phone1has the communication part (CPU71and communication processing part75) communicating with another mobile terminal device through the communication system (telephone network etc.) The first card C1is the card referred to by the CPU71and storing information capable of specifying the subscriber (phone number) of the communication system. Therefore, the strength of the mobile phone1can be improved by the insertion part for inserting and removing the conventional SIM card etc.

Note that, in the above embodiment, the mobile phone1is one example of the mobile terminal device of the present invention, the housing body21is one example of the housing of the present invention, the second card insertion part is one example of the first card insertion part of the present invention, the first card insertion part is one example of the second card insertion part of the present invention, the second card holder51is one example of the first card holder of the present invention, the first card holder49is one example of the second card holder of the present invention, the sub-board47is one example of the circuit board of the present invention, the opening edge21nis one example of the cover use engaging part of the present invention, the slide engaged part23jis one example of the cover use engaged part of the present invention, the CPU71and communication processing part75are one example of the communication part of the present invention, and the engagement part35cis one example of the frame use engagement part of the present invention.

The present invention is not limited to the above embodiments and can be executed in various ways.

The mobile terminal device is not limited to a mobile phone. For example, it may be a PDA, digital camera, or game machine as well. The housing is not limited to one of a thin box shape and may be one with any suitable shape. Further, the housing (first housing3or housing body21) is not limited to one having two regions of different thicknesses (first region part3aand second region part3b) and may be one having a uniform thickness. In the present invention, the card insertion part concealed by the battery (first card insertion part25) is not an indispensable factor.

The card insertion part is not limited to one provided at the inner wall of the battery holding part. Further, the second card insertion part concealed by the battery is not limited to one facing the side surface of the battery. For example, the first card insertion part and second card insertion part may be provided on the bottom of the battery holding part as well. Note, if the first card insertion part and second card insertion part are provided on the inner wall of the battery holding part, there is the merit for example of easy achievement of a reduction of size and a reduction of thickness of the mobile terminal device by providing the first card insertion part and second card insertion part stacked.

The battery is not limited to one of a thin box shape, and the battery holding part is not limited to one having low inner walls and a wide bottom part. Note that, the thickness where the card insertion part is concealed by the thickness of the battery designates the thickness of the battery in the depth direction of the battery holding part (height direction of the inner wall) and does not designate the thickness in the thickness direction among the long direction, short direction, and thickness direction of the battery in a case where the battery is a thin box shape or the like. In the same way, the side surface where the card insertion part faces the side surface of the battery designates the surface of the battery facing the inner peripheral surface of the battery holding part (the surface which is not the bottom surface) and does not designate the side surface between the main surface and side surface of the battery in the case where the battery is a thin box shape or the like.

The card may be one having only a memory function, one having a CPU mounted in it, one equipped with a logic device (one having an access control function), or another suitable one. The posture of the card is not limited to the posture facing the side covered by the cover member. In other words, the card insertion part is not limited to one formed with the direction along the cover member as its longitudinal direction. For example, the posture of the card may be one perpendicular to the cover member as well. Note that, making the posture of the card one facing the side covered by the cover member is advantageous for making the inner walls low and make the housing thin.

The guide part (27a) guiding the insertion of the card may be formed to any suitable shape and is not limited to one abutting against the surface of the card on the internal portion side of the housing and sideward. For example, in the embodiments, either of the sideward guide part27bor inside guide part27cmay be provided as well. Further, the inner side surface of the cover member may be formed to a suitable shape, and the ribs (53) are not indispensable requirements. When the ribs are provided, the shapes of the ribs may be made suitable shapes.

The press mark is not limited to the projecting part projecting from the outer side surface of the cover member. For example, the press mark may be a recessed part or a seal or other pattern adhered to the cover member as well. Note, if the press mark is a projecting part, it is easy to apply force to the press mark so as to slide the cover member along the surface.

The engaged part (23j) weakened in engagement by the press mark of the cover member is not limited to one having a projecting part projecting to the outer side surface of the cover member. For example, a hole part may be provided in the engaged part of the cover member, and an engaging part which is inserted into that hole part from the outer side surface side of the cover member to the inner side surface side for engagement with it may be provided in the housing (housing body) as well.

The card insertion part engaged by the frame member is not limited to one concealed by the battery and may be one not concealed by the battery as well. For example, in the embodiments, the frame member may be engaged with the second card insertion part27as well.

The battery terminal is not limited to the ones exemplified in the embodiments and may be configured by a spring pin, spring terminal, or other suitable terminal.

The communication system is not limited to the telephone network. For example, the communication system may be the Internet as well. Further, the communication system is not limited to one administered by a carrier or one performed through a server and may be a system for directly communicating between mobile terminal devices as well.