JP4573800B2 - Mobile device - Google Patents

Description

  The present invention relates to a portable terminal suitable for application to a mobile phone, a PHS phone (Personal Handyphone System), a PDA device (Personal Digital Assistant), an electronic dictionary device, a portable navigation device, and the like.

  Japanese Laid-Open Patent Publication No. 2003-319042 (Patent Document 1) discloses a portable terminal in which a front case can slide relative to a back case. In this portable terminal, the front case is provided with a protrusion having a pseudo-T cross-sectional shape, the back case is provided with a guide groove frame provided so as to surround the protrusion, and the inside of the guide groove frame protrudes. The track is movable. And in this portable terminal, when a protrusion part is located in the both ends of a guide groove frame, each groove | channel whole area | region of a guide groove frame is arrange | positioned in the positional relationship which is settled in the facing range of a front side housing | casing. According to the portable terminal described in this gazette, by having the above-described configuration, the groove does not appear in the appearance even when the housing is closed or slid and opened, and dust and dirt in the groove can be prevented. The entry is suppressed and the sealing of the housing is enhanced.

Japanese Patent Laying-Open No. 2003-319042 (FIG. 1)

  By the way, in the case of a structure in which two casings are relatively slid like the above-described sliding type mobile terminal, there is a certain gap between the two casings. When an external force in a horizontal direction or a vertical direction is applied to the surface, a housing shift (so-called rattling) in a direction in which the external force is applied is inevitably generated. In particular, the housing displacement in the horizontal direction is easily noticeable. Further, when such rattling occurs and the housing surface is rubbed, the rubbed housing surface portion is damaged, which is not preferable.

  The present invention has been proposed in view of such circumstances, and in a slide-type mobile terminal, a housing surface portion that suppresses housing displacement (particularly, horizontal play) when external force is applied is minimized. An object of the present invention is to provide a portable terminal that can reduce the damage of the device.

  The mobile terminal of the present invention is a slide-type mobile terminal capable of sliding the upper casing and the lower casing relative to each other in the parallel direction, and is at least one of the upper casing and the lower casing. A load-bearing wall that is provided in one housing and receives an external force applied from the side of the housing, and is provided in at least one of the upper housing and the lower housing, and at least outside the housing from the load-bearing wall And a sliding member made of a low friction coefficient material that slides with the inner wall of the other casing during sliding operation, and the sliding member is integrated with the side surface, and the sliding member is integrated. The opposite side surface portion corresponding to the converted side surface portion is obliquely cut inwardly and has a flat plate member having elasticity, thereby solving the above-described problem.

  In other words, according to the present invention, the load-bearing wall receives external force from the side surface of the housing, and the sliding member and the flat plate member reduce frictional resistance during sliding and also receive the external force from the side surface of the housing. I have to.

  In the present invention, external force from the side surface of the housing is received by the load-bearing wall, and external force is received by reducing the frictional resistance during sliding by the sliding member and the flat plate member and also receiving external force from the side surface of the housing. It is possible to suppress as much as possible the displacement of the casing (especially the horizontal play) in the case where the is added, and to reduce the scratch on the surface portion of the casing.

  Hereinafter, an embodiment of a portable terminal of the present invention will be described with reference to the drawings.

  In the present embodiment, a mobile phone terminal is cited as an example of the mobile terminal of the present invention. Of course, the content described here is merely an example, and it goes without saying that the present invention is not limited to this example. .

[Appearance of mobile phone terminal]
1 and 2 show the appearance of a mobile phone terminal according to an embodiment of the present invention.

  The mobile phone terminal according to the present embodiment is a so-called slide type mobile phone terminal capable of sliding the upper housing 1 and the lower housing 2 relative to each other in a parallel direction. 1 shows a state where the mobile phone terminal of the present embodiment is closed (hereinafter referred to as a closed state), and FIG. 2 shows a state where the mobile phone terminal of the present embodiment is slid and opened (hereinafter referred to as “closed state”). , Expressed as an open state).

  For example, in the closed state shown in FIG. 1, the mobile phone terminal of this embodiment is configured so that the upper casing 1 is relatively relative to the lower casing 2 in the direction of arrow A1 in FIG. 2 is moved to the open state when the slide operation is performed relative to 1 (in the direction of arrow A2 in FIG. 2). On the other hand, for example, in the open state shown in FIG. An operation of sliding the housing 2 in the direction of arrow A1 in FIG. 2 (or moving the lower housing 2 in the direction of arrow A2 in FIG. 2 relative to the upper housing 1) was performed. In this case. In the mobile phone terminal of this embodiment, the display 3 provided on the main surface of the upper casing 1 is always exposed to the outside regardless of whether the terminal is in the closed state or the open state. The key operation unit 4 provided on the main surface of the lower housing 2 is exposed to the outside only when it is in an open state, and is covered with the upper housing 1 and not exposed when it is in a closed state.

[Configuration of slide suspension mechanism]
Here, the mobile phone terminal according to the present embodiment determines and regulates the sliding direction when the upper casing 1 and the lower casing 2 are slid relative to each other, suppresses frictional resistance at the start of the sliding operation, and slides. As a configuration for smoothing the movement at the time, a “slide suspension mechanism” described below is provided.

  The “slide suspension mechanism” according to the present embodiment is roughly divided into a “slide rail mechanism” for determining and regulating the sliding direction and the sliding amount when the upper housing 1 and the lower housing 2 are relatively slid. The "sliding shaft mechanism" that slides in the slide rail mechanism with a low friction coefficient, and the "suspension mechanism" that keeps the clearance between the upper housing 1 and the lower housing 2 constant. .

  The “slide suspension mechanism” according to the present embodiment will be described below with reference to FIGS.

  3 to 7 show the housing parts facing each other of the upper housing 1 and the lower housing 2, and the “slide rail mechanism”, “slide shaft mechanism”, and “suspension mechanism” constituting the “slide suspension mechanism”. Only major components are shown. FIG. 3 shows the arrangement of components in the closed state, and FIG. 4 shows the arrangement of components in the open state. FIG. 5 shows an exploded perspective view of each part in the closed state, and FIG. 6 shows an exploded perspective view of each part in the open state. FIG. 7 is a partial sectional view of the “slide suspension mechanism” in the closed state.

  The upper housing 1 of the present embodiment is configured by a front case in which the display shown in FIGS. 1 and 2 is arranged and a rear case 10 which is the housing part facing the lower housing 2. . In addition, the lower housing 2 of the present embodiment is configured by a front case 20 and a rear case which are the housing parts facing the upper housing 1 and the key operation unit 4 shown in FIG. Has been. That is, in this embodiment, the housing | casing site | part which each facing the upper housing | casing 1 and the lower housing | casing 2 shown in FIGS. 3-5 becomes the rear case 10 of the upper housing | casing 1, and the front case 20 of a lower housing | casing. Yes.

[Description of slide rail mechanism]
First, the “slide rail mechanism” will be described.

  As shown in FIGS. 3 to 7, the rear case 10 of the upper housing 1 is provided with a pair of rail grooves 12 a and 12 b that constitute a “slide rail mechanism” on the upper housing 1 side. These rail grooves 12a and 12b penetrate the member 81 of the rear case 10 of the upper casing 1 and are arranged in the vicinity of both ends in the casing short direction. Further, the rail grooves 12a and 12b have a rail central axis parallel to the longitudinal direction of the casing, and one end (rail end) in the longitudinal direction of the rail is disposed substantially at the center in the longitudinal direction of the casing. The other rail end is formed to extend to the vicinity of the case end in the case length direction.

  Similarly, as shown in FIGS. 3 to 7, the front case 20 of the lower housing 2 is provided with a pair of rail grooves 22 a and 22 b constituting a “slide rail mechanism” on the lower housing 2 side. Yes. These rail grooves 22a and 22b pass through the member 82 of the front case 20 of the lower casing 2, and both rails of a pair of rail grooves 12a and 12b provided in the rear case 10 of the upper casing 1 are provided. The rail interval is narrower than the interval, and is arranged in the vicinity of both end portions in the casing short direction. Further, the rail grooves 22a and 22b have a rail central axis parallel to the longitudinal direction of the casing, one rail end in the rail longitudinal direction being arranged substantially at the center in the longitudinal direction of the casing, and the other rail end. Is extended to the vicinity of the end of the casing which is in the longitudinal direction of the casing and opposite to the extending direction of the rail grooves 12a, 12b on the upper casing.

  Thereby, in this embodiment, when the mobile phone terminal is in the closed state, the rail grooves 12a and 12b on the upper housing 1 side and the rail grooves 22a and 22b on the lower housing 2 side are as shown in FIG. The rail ends of the upper casing 1 and the lower casing 2 on the center side in the longitudinal direction of the casing are arranged in a substantially straight line in the longitudinal direction of the casing. On the other hand, in this embodiment, when the mobile phone terminal is in an open state, as shown in FIG. 4, the rail grooves 12a and 12b on the upper housing 1 side and the rail grooves 22a and 22b on the lower housing 2 side are The rail ends on the center side in the case length direction of the rail grooves 12a and 12b on the case 1 side and the rail ends on the case end side of the rail grooves 22a and 22b on the lower case 2 side are in the case short direction. The rail grooves 22a and 22b on the lower casing 2 side are arranged in a straight line, and the rail ends on the central side in the longitudinal direction of the casing and the casing ends of the rail grooves 12a and 12b on the upper casing 1 side. The arrangement is such that the rail ends on the side are arranged substantially in a straight line in the housing short direction.

[Description of slide shaft mechanism and suspension mechanism]
Next, the “slide shaft mechanism” and “suspension mechanism” will be described.

  5-7, the slide guide shaft 52a is fixed to the member 82 of the front case 20 from the lower side of the lower housing 2 via a screw 51a, and a compression coil spring 53a is attached to the shaft portion of the slide guide shaft 52a. And the spacer 54a are rotatably inserted into the rail, and the spacer 54a is rotatably inserted into the rail groove 12a of the upper casing 1 from above the upper casing 1 by the washer 13a and the special screw 11a. Screwed (prevented). In particular, the spacer 54a is formed of a low friction coefficient material such as POM (polyacetal resin). Similarly, the slide guide shaft 52b is fixed to the member 82 of the front case 20 from the lower side of the lower housing 2 via a screw 51b, and a compression coil spring 53b and a spacer 54b are provided on the shaft portion of the slide guide shaft 52b. With the spacer 54b rotatably inserted into the rail groove 12b of the upper housing 1, the spacer 54b is screwed by the washer 13b and the special screw 11b from the upper side of the upper housing 1. Yes. In particular, the spacer 54b is made of a low friction coefficient material such as POM.

  Further, the slide guide shaft 64a is fixed to the member 81 of the rear case 10 from the upper side of the upper housing 1 via the screw 21a, and the compression coil spring 63a and the spacer 62a are rotatable on the shaft portion of the slide guide shaft 64a. In addition, the spacer 62a is loosely inserted into the rail groove 22a of the lower housing 2 so as to be freely rotatable, and is screwed by a washer 65a and a special screw 61a from the lower side of the lower housing 2. . In particular, the spacer 62a is formed of a low friction coefficient material such as POM. Similarly, the slide guide shaft 64b is fixed to the member 81 of the rear case 10 from the upper side of the upper housing 1 via the screw 21b, and the compression coil spring 63b and the spacer 62b rotate around the shaft portion of the slide guide shaft 64b. Further, the spacer 62b is loosely inserted into the rail groove 22b of the lower housing 2 and is screwed by a washer 65b and a special screw 61a from the lower side of the lower housing 2. Yes. In particular, the spacer 62b is made of a low friction coefficient material such as POM.

  Further, in the mobile phone terminal of the present embodiment, one spring end 41 a is fixed to the lower surface of the rear case 10 of the upper housing 1 by a screw 71 and the other spring end 41 b is the front case of the lower housing 2. Is provided with a spring member 40 that is axially fixed by a screw 72. The spring member 40 starts sliding relative to the upper casing 1 and the lower casing 2 when an external force is applied to the upper casing 1 or the lower casing 2 in the longitudinal direction of the casing. When the amount exceeds a certain amount, the upper housing 1 and the lower housing 2 are relatively slid by the spring force to the slide end position in the direction in which the external force is applied. That is, the spring member 40 generates a force that slides the terminal in an open state only by applying a slight force to the upper housing 1 in the direction of the arrow A1 in FIG. For example, only a slight force is applied to the upper housing 1 in the direction of the arrow A2 in FIG. 2 to generate a force for sliding the terminal in the closing direction.

  As described above, in the “slide shaft mechanism” and “suspension mechanism” of the present embodiment, the corresponding spacers 54 a and 54 b are loosely inserted into the rail grooves 12 a and 12 b of the rear case 10 of the upper housing 1, respectively. The repulsive force of the compression coil springs 53a and 53b is applied in the direction in which the rear case 10 of the upper housing 1 and the front case 20 of the lower housing 2 are separated from each other, while the screws 51a and 51b and the special screws 11a and 11b. The corresponding slide guide shafts 52a and 52b are screwed to each other so that the distance between the rear case 10 of the upper housing 1 and the front case 20 of the lower housing 2 is maintained constant (clearance is maintained). And a corresponding spacer in each of the rail grooves 22a and 22b of the front case 20 of the lower housing 2. 2a and 62b are loosely inserted, and the repulsive force of the compression coil springs 63a and 63b is applied in the direction in which the rear case 10 of the upper housing 1 and the front case 20 of the lower housing 2 are separated from each other, while the screws 21a, The corresponding slide guide shafts 64a and 64b are respectively screwed by 21b and special screws 61a and 61b, so that the distance between the rear case 10 of the upper housing 1 and the front case 20 of the lower housing 2 is kept constant. It has a dripping structure.

  That is, according to the mobile phone terminal of the present embodiment, it has a “slide suspension mechanism” composed of a “slide rail mechanism”, a “slide shaft mechanism”, and a “suspension mechanism”. The movement by linking the slide function by the “shaft mechanism” and the clearance maintaining function between the cases by the “suspension mechanism” is possible. The rear case of the upper housing 1 can realize a smooth sliding operation with minimal frictional resistance at the time of the sliding operation relative to the housing 2 and can improve the sliding operation feeling. 10 and the lower case 2 and the front case 20 can be kept constant, and the appearance can be improved compared to conventional products. It is possible to achieve.

[Reduction of frictional resistance during sliding operation and prevention of displacement between cases]
When the mobile phone terminal according to the present embodiment is opened / closed by sliding, the surface of the casing is rubbed at the same time as reducing the frictional resistance when the spring member 40 slides on the casing surface. A sliding member is provided to prevent this. Each of the following sliding members is made of a low friction coefficient material such as POM.

  The sliding members 27, 28, and 30 are provided on a locus along which the spring member 40 moves as the terminal slides, and reduce the frictional resistance when the spring member 40 rubs on the housing surface. The housing surface is provided to prevent the surface of the housing from being rubbed by the spring member 40. In the present embodiment, the sliding member 27 is provided on the bottom surface of the rear case 10 of the upper housing 1, and the sliding members 28 and 29 are disposed on the upper side of the front case 20 of the lower housing 2. Is provided on the surface.

  That is, the mobile phone terminal according to the present embodiment includes the sliding members 27, 28, and 30 to reduce the frictional resistance when the spring member 40 moves along with the sliding operation of the terminal, and at the same time, the spring member. 40 can prevent the surface of the casing from being rubbed.

  In addition, the mobile phone terminal according to the present embodiment reduces the frictional resistance between the casings during the sliding operation, and prevents the upper casing and the lower casing from shifting (reducing backlash) in the open / closed state. As a mechanism for this, the following configuration is provided.

  First, a configuration for preventing the upper casing 1 and the lower casing 2 from being relatively displaced in the casing short direction during a sliding operation, an open state, or a closed state will be described.

  The pair of sliding members 24 a and the pair of sliding members 24 b are provided at both ends of the front case 20 of the lower case 20 in the short direction of the case, and each of them is relative to the main surface of the front case 20 of the lower case 20. And is arranged so as to slide with the inner wall surface of the rear case 10 of the upper housing 1 during a sliding operation. The pair of sliding members 24a is integrated with the flat plate member 23a having an elastic force to be present, and similarly, the pair of sliding members 24b is integrated with the flat plate member 23b having an elastic force to an extent. ing. In the flat plate member 23a, the opposite side surface portion corresponding to the side surface portion on which the pair of sliding members 24a are provided is cut obliquely inwardly, and similarly, the flat plate member 23b is The opposite side surface portion corresponding to the portion where the pair of sliding members 24b is provided is cut obliquely inwardly. That is, in the mobile phone terminal of the present embodiment, for example, when an external force is applied inward from the inner wall surface direction of the rear case 10 of the upper housing 1, the flat plate members 23 a and 23 b are bent toward the notched portions. Therefore, it has a structure that allows the external force to escape.

  In addition, a load bearing wall 25a integrated with the side wall surface of the front case 20 of the lower housing 20 is disposed between the pair of flat plate members 23a, and similarly between the pair of flat plate members 23b. A load bearing wall 25b integrated with the side wall surface of the front case 20 of the lower housing 20 is disposed. That is, the mobile phone terminal of the present embodiment has a structure that receives external force by the load-bearing walls 25a and 25b, respectively, when an external force inward from the inner wall surface direction of the rear case 10 of the upper housing 1 is applied. Yes.

  As described above, the mobile phone terminal according to the present embodiment has the pair of sliding members 24a and the flat plate member 23a and the pair of sliding members 24b and the flat plate member 23b, so that the friction on the side surface portion of the casing during the sliding operation of the terminal is performed. While reducing the resistance and receiving external force by the load-bearing walls 25a and 25b, the upper housing 1 and the lower housing 2 are relatively moved in the short direction of the housing during the sliding operation, the open state, or the closed state. It is possible to prevent deviation. 8 shows a schematic cross section of the sliding member 24a and the load bearing wall 25 provided on the lower housing 2 side, and the member 81 on the housing side surface of the rear case 10 of the upper housing 1. Therefore, according to the present embodiment, the sliding member 24a and the load bearing wall 25 prevent the occurrence of the deviation shown in the direction of the arrow A3 in the drawing.

  Next, a configuration for preventing the upper casing 1 and the lower casing 2 from shifting in the casing thickness direction when the mobile phone terminal of the present embodiment is in the closed state will be described.

  The pair of sliding members 31 is a housing length corresponding to the upper surface of the front case 20 of the lower housing 2 in the open side / closed surface of the rear case 10 of the upper housing 1. It is provided at a corner portion on the end side in the scale direction. Each of the pair of sliding members 31 is provided with a protruding portion, and the protruding portion abuts on the upper surface of the front case 20 of the lower housing 2 to prevent the displacement in the housing thickness direction. is doing.

  In addition, when the upper surface of the front case 20 of the lower housing 2 is in an open / closed state, the housing longitudinal direction end corresponding to the bottom surface of the rear case 10 of the upper housing 1. At the center, a sliding member 29 is provided. The sliding member 29 is provided with a projecting portion, and the projecting portion abuts on the bottom surface of the rear case 10 of the upper housing 1 to prevent the displacement in the housing thickness direction. .

  As described above, the mobile phone terminal according to this embodiment is configured such that the bottom surface of the rear case 10 of the upper housing 1 and the front surface of the lower housing 2 at the time of the sliding operation by the pair of sliding members 31 and 29. The friction resistance of the upper surface of the case 20 is reduced, and the upper casing 1 and the lower casing 2 are moved in the casing thickness direction by the protrusions provided on the pair of sliding members 31 and 29, respectively. It is possible to prevent deviation. 9 shows a member 81 on the bottom side of the rear case 10 of the upper casing 1 and the upper side of the front case 20 of the lower casing 2 when the mobile phone terminal of the present embodiment is in a closed state. , 82 and the schematic cross sections of the sliding members 29, 31. According to the present embodiment, the occurrence of a shift in the casing thickness direction indicated by the directions of arrows A4, A5 in the drawing is shown in FIG. Each protrusion of the moving members 29 and 31 is prevented.

  Next, a configuration for preventing the upper casing 1 and the lower casing 2 from shifting in the casing thickness direction when the mobile phone terminal of the present embodiment is in an open state will be described.

  The sliding member 26 is the upper surface of the front case 20 of the lower housing 2 and corresponds to the bottom surface of the rear case 10 of the upper housing 1 in any open / closed state. It is provided approximately in the center. Further, the sliding member 26 is provided with a pair of protrusions, and the pair of protrusions abuts on the bottom surface of the rear case 10 of the upper casing 1 so that the displacement in the casing thickness direction is eliminated. Is preventing. In particular, when the mobile phone terminal of the present embodiment is in the open state, the sliding member 26 comes to a position corresponding to the sliding member 27 provided in the upper housing 1.

  Further, in the mobile phone terminal of the present embodiment, the sliding member 29 has a function of preventing the upper casing 1 and the lower casing 2 from shifting in the casing thickness direction even in the open state.

  As described above, the mobile phone terminal according to the present embodiment uses the sliding members 26 and 27 and the sliding member 29 to allow the bottom surface of the rear case 10 of the upper casing 1 and the front of the lower casing 2 during the sliding operation. While reducing the frictional resistance of the upper surface of the case 20, the upper casing 1 and the lower casing 2 in the open state are formed by the protrusions provided on the sliding member 26 and the sliding member 29. It is possible to prevent displacement in the thickness direction. 10 shows a member 81 on the bottom side of the rear case 10 of the upper casing 1 and the upper side of the front case 20 of the lower casing 2 when the cellular phone terminal of the present embodiment is in an open state. , 82 and the schematic cross sections of the sliding members 26, 27, 29. According to the present embodiment, the occurrence of a shift in the casing thickness direction indicated by the directions of arrows A6, A7 in the figure, The protrusions of the sliding members 26 and 29 are prevented.

[Summary]
As described above, according to the mobile phone terminal of the present embodiment, the “slide suspension mechanism” can suppress the frictional resistance at the start of the slide operation and can smooth the movement at the time of the slide operation. In addition, the “inter-casing misalignment prevention mechanism” can prevent the misalignment between the housings from being opened, closed, and slid.

  The above description of the embodiment is an example of the present invention. For this reason, the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made according to the design or the like as long as the technical idea according to the present invention is not deviated.

  For example, the mobile terminal of the present invention is not limited to the mobile phone terminal described above, and may be another mobile terminal such as a PDA, a notebook personal computer, or an electronic dictionary as long as it has a slide mechanism. good.

It is an external appearance perspective view when the mobile telephone terminal of this embodiment is a closed state. It is an external appearance perspective view when the mobile phone terminal of this embodiment is in an open state. It is a figure which shows arrangement | positioning of each component of the principal part when the mobile telephone terminal of this embodiment is a closed state. It is a figure which shows arrangement | positioning of each component of the principal part when the mobile telephone terminal of this embodiment is an open state. It is a disassembled perspective view of each part etc. of the principal part when the mobile telephone terminal of this embodiment is a closed state. It is a disassembled perspective view of each part etc. of the principal part when the mobile telephone terminal of this embodiment is an open state. It is a figure used for description of the “slide suspension mechanism” when the cellular phone terminal of the present embodiment is in a closed state. It is a figure used for description of the mechanism for preventing the upper housing and the lower housing from relatively shifting in the housing short direction during the sliding operation or in the open state or the closed state. It is a figure used for description of the mechanism for preventing the upper casing and the lower casing from shifting in the casing thickness direction in the closed state. It is a figure used for description of the mechanism for preventing the upper casing and the lower casing from shifting in the casing thickness direction in the open state.

Explanation of symbols

  1 Upper housing, 2 Lower housing, 3 Display, 4 Key operation section, 10 Upper housing rear case, 11a, 11b, 61a, 61b Special screw, 12a, 12b Upper housing rail groove, 13a, 13b, 65a, 65b washers, 20 lower case front case, 21a, 21b, 51a, 51b, 71, 72 screws, 22a, 22b lower case rail grooves, 23a, 23b flat plate members, 24a, 24b, 26, 27, 28, 29, 30, 31 Slide member, 25a, 25b Bearing wall, 40 Spring member, 41, 42 Spring end, 52a, 52b, 64a, 64b Slide guide shaft, 53a, 53b, 63a, 63b Compression coil spring, 54a , 54b, 62a, 62b Spacer, 81 Rear case member of upper casing, 82 Front case member of lower casing

Claims (3)

A slide-type portable terminal that can slide the upper housing and the lower housing in a direction parallel to each other's main surface,
A load-bearing wall that is provided in at least one of the upper housing and the lower housing and receives an external force applied from a side surface of the housing;
Provided in at least one of the upper housing and the lower housing, arranged at least on the outer side of the load-bearing wall, and slides with the inner side wall of the other housing during the sliding operation. A sliding member made of a low friction coefficient material;
A flat plate member in which a side surface portion is integrated with the sliding member, and an opposite side surface portion corresponding to the side surface portion integrated with the sliding member is obliquely cut inwardly and has an elastic force. When,
A portable terminal characterized by comprising: The load-bearing wall is formed so as to rise in a substantially vertical direction with respect to the main surface of the housing, and is provided in the vicinity of one housing side surface among both side surfaces of the housing that are substantially parallel to the sliding direction. The first bearing wall and the second bearing wall provided in the vicinity of the other casing side surface,
The sliding member is formed so as to rise in a substantially vertical direction with respect to the main surface of the housing, and a first sliding member having two pairs sandwiching the first load bearing wall in the sliding direction. A member and a second sliding member having a pair of two sandwiching the second load bearing wall in the sliding direction,
The flat plate member includes a first flat plate member integrated with the first sliding member, and a second flat plate member integrated with the second sliding member, and the first flat plate member. The opposite side surface portions corresponding to the side surface portions where the pair of first sliding members are provided are respectively formed by obliquely notching inwardly the second flat plate member. 2. The opposite side surface portions respectively corresponding to the side surface portions on which the pair of second sliding members are provided are formed by being obliquely cut away in the inner direction. The portable terminal described.   The load-bearing wall, the sliding member, and the flat plate member are formed on both sides of the casing where the upper casing and the lower casing overlap each other when the upper casing and the lower casing are slid relatively in any direction. The mobile terminal according to claim 2, wherein the mobile terminal is provided near the surface.

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