JP2008180330A - Mobile terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile terminal in which a gap is properly prevented from being produced between two case members forming two casings even if a large load is applied to the two casings in the opening direction. <P>SOLUTION: This mobile terminal comprises a display side casing 11 having a bearing part at one end, a dummy hinge 18 having a rotating part fitted to the bearing part at one end and a joining part at the other end, and a key side casing 12 having one end joined to the joining part. The display side casing 11 and the key side casing 12 are rotatably connected to each other through the dummy hinge 18. The key side casing 12 comprises a key front case 12b and a key rear case 12c joined to each other in the direction perpendicular to the rotating axis of the rotating part of the dummy hinge 18. The dummy hinge 18 comprises a restraining part 25 engaged with the key front case 12b and restraining the displacement of the key front case 12b separating from the key rear case 12c in the direction perpendicular to the rotating axis. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a mobile terminal device in which two housings are rotatably connected via a connecting member.

  2. Description of the Related Art Conventionally, a foldable portable terminal device is known in which two housings, a display-side housing and a key-side housing, are connected by a hinge unit (connecting mechanism) so that both housings can approach and separate from each other. The two housings connected by the hinge unit can be freely opened and closed in an open state in which the two housings are expanded from each other and continuous on a substantially straight line, or in a closed state in which the two housings overlap each other vertically. it can. As such a portable terminal device, for example, there is a “portable electronic device” (see Patent Document 1).

  In this conventional foldable portable terminal device, the hinge unit that connects the two housings has an opening / closing hinge and a dummy hinge (connecting member) arranged side by side in a substantially straight line. It is formed in a tubular shape for passing a thin coaxial cable for electrically connecting the substrates respectively arranged in both cases.

The dummy hinge is coupled to a key rear case that constitutes the key-side housing together with the key front case by a screw member. As this coupling structure, a screw boss is formed in the case member, and a hole through which the screw boss is inserted into the connecting member. Is formed.
JP 2006-067525 A

  By the way, the case as described above is often configured to couple two case members together. However, due to the recent demand for thinner mobile phones, the two case members constituting the casing have also been thinned, and the engagement structure of the engagement portions of these case members has become shallower. There is a tendency to be miniaturized.

  For this reason, in the coupling structure in the conventional folding-type portable terminal device, the speaker on the opposite side of the one end of the display-side housing connected to the key-side housing is opened in both housings. If a large load is applied to the mounted other end in the opening direction of both housings, the engagement of the engaging part loosens or disengages due to the bending of the case member, and the two case members rotate the hinge unit. There was a problem in that the case members were separated from each other in a direction perpendicular to the axis, and a gap was generated between the case members.

  Therefore, the present invention provides a portable terminal device that can suitably suppress the occurrence of a gap between the two case members constituting the casing even when a large load is applied in the opening direction of the two casings. The purpose is that.

  In order to achieve the above object, a portable terminal device according to the present invention has a first housing having a bearing portion at one end portion, a rotating portion attached to the bearing portion at one end portion, and coupled to the other end portion. And a second housing having one end coupled to the coupling portion, and the first housing and the second housing are rotatably coupled via the coupling member. In the portable terminal device, any one of the first casing and the second casing may be coupled to each other in a direction perpendicular to the rotation axis of the rotating portion. The connecting member is engaged with one of the first case member and the second case member, and the other case in the direction perpendicular to the rotation axis of the one case member. It has a displacement restricting portion that restricts the displacement away from the member.

  In the present invention, the second casing is configured to include the first case member and the second case member, and the coupling portion is coupled to the first case member, and the displacement restriction The part is preferably engaged with the first case member.

  Further, in the present invention, the coupling portion is coupled to the first case member on the other end side of the second housing with respect to the rotation shaft of the rotating portion, and the displacement restricting portion is coupled to the coupling portion. It is preferable that the first case member is engaged on the one end side of the second housing with respect to the coupling portion with the first case member.

  Further, according to the present invention, the first casing and the second casing are connected to each other so as to be relatively rotatable between a first state arranged opposite to each other and a second state developed from each other. The first case member is preferably a case member that is located on the first housing side in the first state.

  In the present invention, an engaging portion is formed on one of the first housing and the second housing, and an engaged portion on which the engaging portion is engaged is formed on the other. The first case member and the second case member are coupled by engagement of the engaging portion and the engaged portion, and the displacement restricting portion corresponds to the engaging portion or the engaged portion. It is preferable to engage with the part.

  According to this invention, when the stress in the rotation direction acts on one case member of the first case member and the second case member, the displacement restricting portion of the connecting member is the first case member and the second case member. And the displacement of the one case member away from the other case member in the direction perpendicular to the rotation axis of the rotation portion is restricted. Therefore, the rotation of the rotation portion of the one case member is restricted. Displacement in a direction perpendicular to the axis (a direction away from the other case member) is restricted, thereby preventing a gap from being generated between the two case members.

  Furthermore, since generation | occurrence | production of a clearance gap can be suppressed as mentioned above, the joint structure of both case members can be simplified and it can reduce in size.

  The displacement restricting portion of the connecting member may be engaged with either the first housing or the second housing to restrict the displacement of the case member of the housing.

  The best mode for carrying out the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a mobile phone as an example of a mobile terminal device according to an embodiment of the present invention in an open state. As shown in FIG. 1, a mobile phone 10 as an example of a mobile terminal device includes, for example, two housings, a display-side housing (first housing) 11 and a key-side housing (second housing) 12. The body has a foldable structure in which the housings 11 and 12 are connected to each other by a hinge portion 13 so as to be able to approach and separate from each other.

  The hinge portion 13 protrudes from one end portion of the display-side housing 11 and is pivotally supported by a pair of hinge mounting portions 12a and 12a formed at one end portion of the key-side housing 12. Has been. The display-side casing 11 and the key-side casing 12 connected by the hinge portion 13 are in a closed state (first state: not shown) in which both casings overlap each other vertically or both casings are They can be freely opened and closed in an open state (second state) that is expanded from each other and continues on a substantially straight line.

  A main liquid crystal display (LCD) 14 is arranged on one side of the display-side casing 11 facing leftward in FIG. 1, and the key-side casing 12 facing leftward in FIG. On one surface side, there are provided operation units 15 each having a plurality of operation keys that can be pressed. The outer surface of the key-side casing 12 is constituted by a key front case 12b and a key rear case 12c, and is arranged so that the operation unit 15 is exposed on the key front case 12b side.

  FIG. 2 is a partial perspective view of the key front case constituting the key-side casing 12 of FIG. As shown in FIG. 2, in a state where the display-side housing 11 and the key-side housing 12 are connected, the bearing portion 13 a of the hinge portion 13 that constitutes a part of the display-side housing 11 is A hinge-down portion 16a of the hinge front case 16 constituting the exterior case is formed as an internal space of a cylindrical portion laid sideways, and is open to the inner surface side of the key front case (first case member) 12b of the key-side housing 12. is doing.

  A hinge unit (coupling mechanism) that holds the two casings in an open state or a closed state and gives a feeling of moderation during the opening / closing operation is formed on one side of the bearing portion 13a in the casing width direction (left side in FIG. 2). A hinge member (not shown) is mounted, and a dummy hinge (connecting member) 18 is mounted on the other side in the housing width direction (the right side in FIG. 2). The dummy hinge 18 is provided as a pair with the hinge member, and a cable member (described later) for electrically connecting the circuit boards incorporated in the display-side casing 11 and the key-side casing 12 respectively. For example, it has a hole through which a thin coaxial cable) is passed.

  That is, the mobile phone 10 as an example of a mobile terminal device has a display-side casing 11 having a bearing portion 13a at one end, a hinge member, and a rotating portion 20 attached to the bearing portion 13a at one end. A dummy hinge 18 having a coupling portion 19 at the other end, and a key-side casing 12 having one end coupled to the coupling portion 19. The display-side casing 11 and the key-side casing 12 are hinged. It is connected via a member and a dummy hinge 18 so as to be rotatable.

  The metal dummy hinge 18 includes a coupling portion 19 and a rotating portion 20 that is rotatably attached to the coupling portion 19. The coupling portion 19 is provided with an insertion hole 22 through which the boss portion 21 integrally formed on the inner surface is inserted corresponding to the hinge mounting portion 12a of the key front case 12b, and the rotating portion 20 has a hole through which the cable member passes. It has a cylindrical shape. On the other hand, the boss portion 21 of the key-side housing 12 is located on the side of the bearing portion 13a, extends in a direction substantially perpendicular to the rotation axis of the rotating portion 20, and protrudes from the inner surface of the key front case 12b. .

  The dummy hinge 18 is inserted and coupled to the opening of the bearing portion 13a through an annular collar 23 made of, for example, a resin having a sliding property in order to maintain a smooth rotation. Thus, the boss portion 21 is inserted into the insertion hole 22 of the coupling portion 19 to be positioned and fixed.

  As described above, the key-side casing 12 is connected to the key front case 12b (second case), which will be described later, and is coupled to the key front case 12b with the dummy hinge 18 interposed therebetween. 8, and the key front case 12 b and the key rear case 12 c are coupled to each other by a screw member (not shown) screwed into the boss portion 21 as shown in FIG. 8. Has been.

  For this reason, the dummy hinge 18 can be positioned using the boss | hub part 21 for couple | bonding the key front case 12b and the key rear case 12c, and it can comprise simply (compact). Further, the dummy hinge 18 can be coupled to the key front case 12b by screw coupling using a screw member, and the housing strength can be improved.

  FIG. 3 is a perspective view of the dummy hinge 18 of FIG. 2 and a collar 23 attached to the dummy hinge. 4 shows the dummy hinge 18 of FIG. 3, wherein (a) is a perspective view seen from a direction different from FIG. 3, (b) is a perspective view seen from a direction different from (a), and (c). FIG. 4 is a perspective view seen from a direction different from (b).

  As shown in FIG. 3, the collar 23 is firmly fixed to the outer peripheral surface side of the rotating portion 20 in a state where the rotating portion 20 of the dummy hinge 18 is inserted. Further, as shown in FIGS. 3 and 4, the insertion hole 22 opened in the coupling portion 19 of the dummy hinge 18 is in a state where the coupling portion 19 and the key front case 12 b, that is, the key-side housing 12 are coupled. A fitting hole 24a into which the boss part 21 is inserted and fitted, and a diameter-enlarging hole 24b that communicates with the fitting hole 24a and is enlarged in the rotation direction of the rotary part 20 toward the key-side casing 12 side. , Are formed.

  That is, the diameter-expanded hole 24 b is gradually reduced in diameter along the outer peripheral surface of the rotating portion 20 from the bottom surface side opening 24 c that is sufficiently larger than the outer diameter of the boss portion 21 and serves as an insertion entrance of the boss portion 21. Thus, the boss portion 21 communicates with the fitting hole 24a having an inner diameter in which the boss portion 21 is fitted. In addition, the diameter expansion hole 24b is not to interfere with the boss portion 21 due to the boss portion 21 entering the diameter expansion hole 24b being caught when the rotating portion 20 is rotationally fitted. It has a boss relief shape.

  5A and 5B show a method of mounting the dummy hinge 18, wherein FIG. 5A is a perspective view in a mounting start state, FIG. 5B is a perspective view in a dummy hinge rotating state, and FIG. 5C is a perspective view in a mounting end state. 6A and 6B show the mounting method of the dummy hinge 18 from a direction different from that in FIG. 5, where FIG. 6A is a cross-sectional explanatory view of the mounting start state, FIG. 6B is a cross-sectional explanatory view of the dummy hinge rotating state, and FIG. It is sectional explanatory drawing of a state.

  As shown in FIGS. 5 and 6, when the dummy hinge 18 is mounted, first, the dummy hinge 18 in which the rotating portion 20 with the collar 23 mounted is inserted into the bearing portion 13a of the hinge portion 13 is replaced with the boss portion 21 of the key front case 12b. Is arranged on the side of the boss portion 21 in a state where the coupling portion 19 is erected so as to be positioned in the enlarged diameter hole 24b (see FIGS. 5A and 6A).

  Next, from the state where the coupling portion 19 is erected, the coupling portion 19 is rotated downward so that the boss portion 21 enters the enlarged diameter hole 24b. At this time, the connecting portion 19 rotates smoothly with the rotating portion 20 inserted into the rotating bearing portion 13a as the rotating shaft, and at the same time, the boss portion 21 enters the enlarged diameter hole 24b (FIG. 5B, FIG. 6). b)).

  Next, the coupling portion 19 is further rotated downward, and the bottom surface 19a of the coupling portion 19 is brought into contact with the inner surface of the key front case 12b. At this time, the boss portion 21 that has entered the enlarged diameter hole 24b is guided from the enlarged diameter hole 24b to the fitting hole 24a, and at the same time the bottom surface of the coupling portion 19 contacts the inner surface of the key front case 12b. It protrudes from the upper end of the fitting hole 24a and is fitted in the fitting hole 24a (see FIGS. 5C and 6C).

  As described above, the insertion hole 22 through which the boss portion 21 of the key-side casing 12 is inserted is formed so as to expand in diameter along the rotation direction of the rotation portion 20, so that the rotation portion 20 is inserted into the bearing portion 13a. In addition, the dummy hinge 18 can be engaged with the key-side casing 12 while rotating the dummy hinge 18 in a state where the key-side casing 12 is assembled to the hinge portion 13 (display-side casing 11). The assembling property of the side housing 12 is improved, and the assembling property of the display side housing 11 and the key side housing 12 is also improved.

  Further, as shown in FIG. 3, the dummy hinge 18 includes a restricting portion 25 as a displacement restricting portion formed on the coupling portion 19 on the side where the rotating portion 20 is located at the bottom portion that contacts the key front case 12b. The coupling portion 19 has an engagement portion 26 that engages with the key-side housing 12 (key front case 12b) when the boss portion 21 is fitted in the fitting hole 24a. . The restricting portion 25 and the engaging portion 26 are formed on the bottom portion 19 a of the coupling portion 19 in a flange shape with the bottom portion extended outward.

  FIG. 7 is a cross-sectional explanatory view along the longitudinal direction of the key front case 12b for explaining the restricting portion 25 of the dummy hinge 18. As shown in FIG. FIG. 8 is an explanatory cross-sectional view for explaining the function of the restricting portion 25 of the dummy hinge 18. As shown in FIG. 7, in a state where the boss portion 21 is fitted in the fitting hole 24 a and the dummy hinge 18 is positioned and fixed, the regulating portion 25 is positioned at one end in the longitudinal direction of the key-side housing 12 by the dummy hinge 18. It is formed on the bottom part (right side in FIGS. 7 and 8) and engages with a claw part 27 (see FIG. 5) formed on the inner surface on the same end side of the key front case 12b corresponding to the restricting part 25. A concave portion 12e as an engaged portion is formed outwardly at this one end side of the key front case 12b, and a corresponding one end portion of the key rear case 12c is inwardly engaged with the concave portion 12e to engage the key. An engaging protrusion 12f is formed as an engaging portion for connecting the front case 12b and the key rear case 12c. When the restricting portion 25 of the dummy hinge 18 abuts on and engages the claw portion 27 from below (see FIG. 5C), when both the casings 11 and 12 receive a load in the opening direction. The inward displacement of the recess 12e is prevented, and the separation of the one end side of the key front case 12b from the key rear case 12c is restricted.

  That is, as shown in FIG. 8, when an overload in the A direction is applied to the key-side casing 12, a force in the B direction (a direction perpendicular to the rotation axis) acts on the hinge side end of the key front case 12b. Then, the hinge-side end of the key front case 12b attempts to move away from the key rear case 12c by displacing the recess 12e that is pushed inward by the engagement protrusion 12f by the action of the force toward the inside of the case. However, the restricting portion 25 of the dummy hinge 18 held by the bearing portion 13a via the rotating portion 20 is engaged with the claw portion 27 of the key front case 12b to prevent the recess 12e from being displaced inward of the case. Therefore, the hinge side end portion of the key front case 12b is not separated from the key rear case 12c, and the generation of a gap due to the separation is suppressed.

  As described above, when stress in the rotational direction acts on one of the key front case 12b and the key rear case 12c, the direction perpendicular to the rotational axis of the rotating unit 20 of the one case (the other) Since the displacement in the direction away from the case) is restricted, it is possible to suppress the generation of a gap between the cases 12b and 12c. Moreover, since generation | occurrence | production of a clearance gap can be suppressed, the joint structure of both cases 12b and 12c can be simplified and it can reduce in size.

  Further, according to the above configuration, the key-side casing 12 includes the key front case 12b and the key rear case 12c, and the coupling portion 19 of the dummy hinge 18 is coupled to the key front case 12b. Since the restricting portion 25 engages with the key front case 12b, the restricting portion 25 engages with the key front case 12b to which the connecting portion 19 is coupled to restrict the displacement of the key front case 12b. Even when a force in a direction perpendicular to the rotation axis is applied to the hinge side end of the key front case 12b when the key side case 12 is rotated due to the connection between the connecting portion 19 and the key front case 12b, It can suppress suitably that a clearance gap generate | occur | produces between both cases 12b and 12c.

  Furthermore, according to the above configuration, the connecting portion 19 of the dummy hinge 18 is connected to the key front case 12b on the other end side of the key-side housing 12 with respect to the rotating shaft of the rotating portion 20, and the restricting portion 25 of the dummy hinge 18 is The coupling portion 19 is engaged with the key front case 12b by the claw portion 27 located on the one end side of the key-side housing 12 with respect to the coupling portion of the coupling portion 19 with the key front case 12b. By connecting to the key front case 12b on the other end side of the key-side casing 12 with respect to the rotation shaft of the key-side casing 12, the one end side of the key front case 12b of the key-side casing 12 is likely to be displaced in the gap generating direction. However, since the restricting portion 25 of the dummy hinge 18 restricts the displacement at one end of the key front case 12b, it is preferable to suppress the occurrence of a gap between the cases 12b and 12c. Can.

  Furthermore, according to the above configuration, the display-side casing 11 and the key-side casing 12 are connected to each other so as to be relatively rotatable between a closed state in which the display-side casing 11 and the key-side casing 12 are opposed to each other and an open state in which the display side casing 11 and the key side casing 12 are deployed. The key front case 12b of the key-side casing 12 is a case member that is located on the side close to the display-side casing 11 when in the closed state, so that it rotates from the closed state, that is, the closed state to the open state. Although the stress in the direction away from the key rear case 12 c acts on the key front case 12 b among the case members of the key-side housing 12 during the rotation operation in the direction, the key front case 12 b is used as the restriction portion 25 of the dummy hinge 18. By restricting the displacement of the mobile phone 10 by engaging the mobile phone, it is possible to suitably suppress the occurrence of a gap between the case members in the foldable mobile phone 10 as the foldable mobile terminal device.

  And according to the said structure, while the engagement protrusion part 12f is formed in the key rear case 12c among the case members of the key side housing | casing 12 which is one of the display side housing | casing 11 and the key side housing | casing 12, The key front case 12b is formed with a recess 12e in which the engagement protrusion 12f is engaged, and the key front case 12b and the key rear case 12c are coupled by the engagement of the engagement protrusion 12f and the recess 12e. Since the restricting portion 25 of the dummy hinge 18 engages with the claw portion 27 located at the portion corresponding to the recess 12e, the displacement of the case member is restricted at the joint portion of the cases 12b and 12c, so that a gap is not generated. While being able to suppress more suitably, the joint structure of both cases 12b and 12c can be simplified more.

  FIG. 9 is a cross-sectional explanatory view along the width direction of the key front case 12b for explaining the engaging portion 26 of the dummy hinge 18. As shown in FIG. As shown in FIG. 9, when the rotating portion 20 is rotated with the bearing portion 13 a mounted, and the boss portion 21 is fitted into the fitting hole 24 a of the insertion hole 22, the key-side housing in the coupling portion 19. 12 is engaged with the projection claw 12d formed on the side surface of the key front case 12b, that is, the key-side housing 12. . For this reason, the rotation of the dummy hinge 18 is restricted, and the display-side casing 11 and the key-side casing 12 can be easily coupled via the dummy hinge 18.

  FIG. 10 is an explanatory perspective view showing a positioning state of the cable member inserted through the rotating unit 20 in the dummy hinge 18. As shown in FIG. 10, the rotating unit 20 includes a cable member (for example, a thin coaxial cable) 29 disposed between the inside of the display-side housing 11 and the inside of the key-side housing 12. Although being inserted, the cable member 29 is disposed along the connecting portion 19 of the dummy hinge 18. A hook-shaped positioning portion 30 that covers the cable member 29 from above is formed at the upper end of the coupling portion 19, and the positioning portion 30 prevents the cable member 29 from being lifted while the cable member 29 is connected to the coupling portion 19. It can be guided along the outer peripheral surface and guided to the rotating unit 20. Therefore, workability can be improved when the cable member 29 is wired.

  FIG. 11 shows the inner surface of the hinge-side end portion of the front case of the liquid crystal display-side casing and the dummy hinge in an assembled state in a mobile phone according to another embodiment of the present invention. The inside of the hinge side end part of the case and the entire dummy hinge, (b) is a perspective view showing an enlarged state of a part indicated by an arrow C in (a). 12 is an exploded perspective view showing a hinge side end portion and a dummy hinge of the front case of FIG. FIG. 13 is a cross-sectional view showing the hinge side end of the front case and the dummy hinge in FIG. 11 in an assembled state. In the figure, the same parts as those in the previous embodiment are denoted by the same reference numerals.

  As shown in FIGS. 11 to 13, in the mobile phone according to this embodiment, the connecting portion 19 of the dummy hinge 18 is connected to the front case 31 of the display-side housing 11 by a screw member (not shown). The rotating unit 20 is rotatably connected to a key-side housing (not shown) via a collar 23. Further, the front case 31 is provided in a rear case (not shown), in the vicinity of the dummy hinge 18, a recess 32 a (see FIG. 13) formed outwardly on a claw portion 32 projecting from the inner surface of the front case 31, and the rear The case is coupled by engagement with a claw portion formed inwardly.

  Here, the restricting portion 25 as a displacement restricting portion projecting from the connecting portion 19 of the dummy hinge 18 is in a state where the connecting portion 19 of the dummy hinge 18 is connected to the inner surface of the front case 31. The claw 32 is prevented from being displaced by engaging with a recess 32b (see FIG. 13) formed inward in the portion 32.

  Therefore, also in this embodiment, when a stress in the rotational direction acts on one of the front case 31 and the rear case, the rotation of one case is performed in the same manner as in the previous embodiment. Since the displacement of the portion 20 in the direction perpendicular to the rotation axis (the direction away from the other case) is restricted, the generation of a gap between the two cases can be suppressed. Moreover, since generation | occurrence | production of a clearance gap can be suppressed, the joint structure of both cases can be simplified and it can reduce in size.

  As mentioned above, although demonstrated based on embodiment of an illustration, this invention is not limited to this embodiment. Therefore, what is implemented as a change aspect without deviating from the meaning of the present invention is also included. For example, in the above-described embodiment, the displacement restricting portion of the connecting member is engaged with the case member of the second housing whose one end is connected to the connecting portion of the connecting member. You may make it engage the displacement control part of a connection member, and since a connection member rotates with respect to a 1st housing | casing in that case, when the 1st housing | casing and a 2nd housing | casing are made into the open position, The displacement restricting portion of the connecting member may be engaged with the case member of the first housing to suppress the generation of a gap between the case members of the first housing.

  Further, the displacement restricting portion of the connecting member is configured to be coupled to the case member to which the coupling portion 20 is coupled, but may be configured to be engaged with the other case member to which the coupling portion 20 is not coupled. Further, the displacement restricting portion is configured to engage with the case member at a position corresponding to the engaging portion (engagement protrusion 12f, concave portion 12e) of both case members, but is not limited to this. You may make it engage with a case member in parts other than a part. And this invention is not limited to a mobile telephone, For example, It can apply also to the other portable terminal device with which two housing | casings are rotatably connected via a connection member.

It is a perspective view in the open state of the mobile telephone which concerns on one embodiment of this invention. It is a fragmentary perspective view of the key front case which comprises the key side housing | casing of FIG. FIG. 3 is a perspective view of a dummy hinge of FIG. 2 and a collar attached to the dummy hinge. 3 shows the dummy hinge of FIG. 3, (a) is a perspective view seen from a direction different from FIG. 3, (b) is a perspective view seen from a direction different from (a), (c) is (b) and FIG. 3 is a perspective view seen from another direction. The attachment method of a dummy hinge is shown, (a) is a perspective view in an attachment start state, (b) is a perspective view in a dummy hinge rotation state, and (c) is a perspective view in an attachment end state. 5A and 5B show a method of mounting the dummy hinges from a different direction, where FIG. 5A is a cross-sectional explanatory diagram in a mounting start state, FIG. 5B is a cross-sectional explanatory diagram in a dummy hinge rotating state, and FIG. It is. It is sectional explanatory drawing in alignment with the longitudinal direction of the key front case explaining the control part of a dummy hinge. It is sectional explanatory drawing explaining the function of the control part of a dummy hinge. It is sectional explanatory drawing in alignment with the width direction of the key front case explaining the engaging part of a dummy hinge. It is an isometric view explanatory drawing which shows the positioning state in the dummy hinge of the cable member inserted by the rotation part. An inner surface of a hinge side end portion of a front case of a case on a liquid crystal display side and a dummy hinge of a mobile phone according to another embodiment of the present invention are shown in an assembled state, and (a) shows the hinge side of the front case. The inner side of the end and the entire dummy hinge, (b) is a perspective view showing an enlarged state indicated by an arrow C in (a). It is a disassembled perspective view which shows the hinge side edge part and dummy hinge of the front case of FIG. It is sectional drawing which shows the hinge side edge part and dummy hinge of the front case of FIG. 11 in an assembly state.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Mobile telephone 11 Display side housing | casing 12 Key side housing | casing 12a Hinge mounting part 12b Key front case 12c Key rear case 12d Protrusion claw 12e Recessed part 12f Engagement protrusion 13 Hinge part 13a Bearing part 14 Main LCD
DESCRIPTION OF SYMBOLS 15 Operation part 16 Hinge front case 16a Hinge arrangement | positioning part 18 Dummy hinge 19 Connection part 19a Bottom face 20 Rotation part 21 Boss part 22 Insertion hole 23 Collar 24a Fitting hole 24b Diameter expansion hole 25 Restriction part 26 Engagement part 27 Claw part 29 Cable member 30 Positioning part 31 Front case 32 Claw part 32a Recess 32b Recess

Claims (5)

A first housing having a bearing at one end;
A connecting member having a rotating part attached to the bearing part at one end and a coupling part at the other end;
A second housing having one end coupled to the coupling part,
In the mobile terminal device in which the first housing and the second housing are rotatably connected via the connecting member,
One of the first casing and the second casing is configured to include a first case member and a second case member that are coupled to each other in a direction perpendicular to the rotation axis of the rotating portion.
The connecting member is engaged with one of the first case member and the second case member, and restricts displacement of the one case member away from the other case member in a direction perpendicular to the rotation axis. A displacement restricting portion that
The portable terminal device characterized by the above-mentioned. The second casing is configured to include the first case member and the second case member,
The coupling portion is coupled to the first case member,
The displacement restricting portion engages with the first case member;
The mobile terminal device according to claim 1. The coupling portion is coupled to the first case member on the other end side of the second housing with respect to the rotation shaft of the rotation portion,
The displacement restricting portion engages with the first case member on the one end side of the second housing with respect to the coupling portion of the coupling portion with the first case member.
The mobile terminal device according to claim 2. The first housing and the second housing are coupled to each other so as to be relatively rotatable between a first state arranged opposite to each other and a second state deployed to each other,
The first case member is a case member located on the second housing side in the first state.
The mobile terminal device according to claim 2, wherein the mobile terminal device is a mobile terminal device. An engaging portion is formed on one of the first housing and the second housing, and an engaged portion on which the engaging portion is engaged is formed on the other,
The first case member and the second case member are coupled by engagement of the engaging portion and the engaged portion,
The displacement restricting portion engages with a portion corresponding to the engaging portion or the engaged portion.
The mobile terminal device according to claim 1, wherein the mobile terminal device is a mobile terminal device.

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