JP4303064B2 - Portable terminal device and connecting member - Google Patents

Description

 The present invention relates to a mobile terminal device such as a mobile phone, PDA (Personal Digital Assistants), etc., in which two casings are rotatably connected to each other, and a connecting member thereof.

Conventionally, as a mobile terminal device having two casings, two casings arranged so as to be superposed on each other are rotated around each other around an axis along the overlapping direction of the two casings. There is one provided with a connecting portion that is movably connected (for example, see Patent Document 1). This portable terminal device is configured such that the two casings can be opened from each other by rotating 180 degrees around the axis from the state where the two casings are overlapped and closed.
Further, in the mobile terminal device having such a configuration, a through-hole that allows the internal spaces of the two housings to communicate with each other is formed on the rotating shaft that forms the connecting portion. Cables that electrically connect the circuit boards fixed in the two housings to each other are arranged in the through holes. This cable transmits an electrical signal exchanged between circuit boards arranged in both housings, or supplies power from a battery provided in one housing to the other housing.
JP-A-7-288860

In general, in the mobile terminal device having such a configuration, the two casings are used in a state in which the two casings are closed with each other and in a state in which the two casings are rotated by 180 ° from each other and opened. It was required to make it easy to handle the mobile terminal device by just stopping at the rotated position.
Accordingly, an object of the present invention has been made in view of the above-described circumstances, and two housings arranged so as to be superposed in the thickness direction are rotated around an axis extending in the superposing direction of the two housings. An object of the present invention is to provide a mobile terminal device that can be easily handled in a mobile terminal device that is connected via a connecting means so as to be movable.

In order to solve the above problems, the present invention proposes the following means.
A portable terminal device according to the present invention includes a first casing and a second casing that are arranged so as to be able to overlap each other, and an axis that extends in the overlapping direction between the first and second casings. And a connecting means for rotatably connecting to the rotating terminal, wherein the connecting means is formed extending in the axial direction and fixed to one housing side, together with the rotating shaft A protrusion that is integrally rotatable, a substantially annular inclined orbit formed on the other housing side opposite to the rotation locus of the protrusion, and inclined with respect to a reference plane orthogonal to the axis; and the protrusion Biasing means for biasing toward the inclined track, wherein the first casing has a first circuit board, and the second casing has a second circuit board, The rotation shaft has a through-hole penetrating in the axial direction inside, and the first shaft passes through the through-hole. Wiring for electrically connecting the circuit board a second circuit board is disposed, the reference position of the inclined orbit, holding recess to accommodate said protrusion recessed in the axial direction is formed, the The inclined trajectory is composed of a first inclined trajectory that is directed from the reference position in one rotational direction, and a second inclined trajectory that is directed from the reference position to another rotational direction opposite to the one rotational direction, The inclination angles of the first and second inclined orbits with respect to the reference plane are equal .

Further, an accommodation recess is formed at a predetermined position of the inclined track rotated by 180 ° from the reference position so as to be recessed in the axial direction so that the projection can be accommodated.

Coupling member according to the present invention is a connecting member that mutually connects rotatably about an axis extending in the direction superimposing a first housing and the second housing, formed to extend in the axial direction A rotation shaft fixed to one housing side, a protrusion that can rotate integrally with the rotation shaft, a reference that is formed on the other housing side facing the rotation locus of the protrusion and is orthogonal to the axis. A substantially annular inclined track that is inclined with respect to a plane; and a biasing means that biases the protrusion toward the tilted track, wherein the first housing includes a first circuit board, The second casing includes a second circuit board, and the rotation shaft has a through hole formed therein penetrating in the axial direction, and the first circuit board and the first circuit are formed through the through hole. Wiring for electrically connecting the two circuit boards is disposed, and the shaft is positioned at a reference position of the inclined track. A holding recess that is recessed in a direction to accommodate the protrusion is formed, and the inclined track has a first inclined track that extends from the reference position in one rotation direction, and the first rotation direction from the reference position. The second inclined trajectory is opposite in the other rotational direction, and the inclination angles of the first and second inclined trajectories with respect to the reference plane are equal.

According to the present invention, in order to accommodate the protrusion of the rotating shaft brought into contact with the inclined track by the urging means in the holding recess or the receiving recess, the two housings are just stopped at a position rotated by 180 ° relative to each other. This makes it easier to handle the mobile terminal device. Further, when the projection is brought into contact with the first and second inclined tracks by the biasing means, the projection automatically moves from the reference position of the tilted track to a predetermined position by the biasing force of the biasing means. The two casings can be easily rotated.
Furthermore, by bringing the regulating rib of the rotating shaft arranged on one housing side and the stopper arranged on the other housing side into contact with each other via a protrusion that is rotatable with respect to the rotating shaft, It becomes possible to stop the two housings just at a position where the two housings are rotated 180 ° relative to each other.

 That is, the value obtained by subtracting the formation angle of the protruding portion from each phase difference from the first and third surfaces of the restricting rib to the second and fourth surfaces of the stopper at the reference position allows the restricting rib to move from the reference position. Since this is an angle range, when this angle is set to 180 °, the two housings are rotated from each other by 180 ° in two directions around the axis from the closed state. You can open your bodies to each other. Further, in a state where the two housings are opened to each other, further rotation is restricted by the restricting means, so that disconnection of the cable arranged between the two housings can be prevented.

1 to 9 show an embodiment according to the present invention, and the embodiment described here is a case where the present invention is applied to a mobile phone.
As shown in FIG. 1, a mobile phone (mobile terminal device) 1 according to this embodiment includes a first casing 2 and a second casing that can be overlapped in the thickness direction of the first casing 2. The housing 3 is provided with connecting means 5 for connecting the two housings 2 and 3 so as to be rotatable about a reference axis L1 extending in the overlapping direction. In addition, the connection means 5 connects each edge part 2b, 3b (henceforth base end part 2b, 3b) of the two housing | casing 2,3.

On the inner surface 2a of the first casing 2 that faces the second casing 3 when superimposed, an operation unit 7 is provided that includes various pressable operation keys such as a call key, an end key, and a numeric keypad. . Further, a microphone portion 9 is provided at the distal end portion 2c of the first housing 2 located on the opposite side of the base end portion 2b in the inner surface 2a. The operation unit 7 and the microphone unit 9 are covered with the second casing 3 in a state where the first and second casings 2 and 3 are overlapped and closed. The direction connecting the base end 2b and the tip 2c is the longitudinal direction (CD direction) of the first housing 2.
On the outer surface 3a of the second housing 3 facing substantially the same direction as the inner surface 2a of the first housing 2, a display unit 11 for displaying various information is provided, and the base end portion of the outer surface 3a is provided. A speaker unit 15 is provided at the tip 3c of the second housing 3 located on the opposite side of 3b. The display unit 11 and the speaker unit 15 can be rotated 180.degree. Around the reference axis L1 from the state in which the two casings 2 and 3 are opened, and the display unit 11 and the speaker unit 15 can be closed even if they are overlapped and closed as shown in FIG. It is exposed towards.

As shown in FIG. 3, a battery (not shown) and a first circuit board 21 are fixed inside the first housing 2, and the operation unit 7 and the microphone unit 9 described above are provided in the first case 2. The circuit board 21 is electrically connected. The first circuit board 21 is also equipped with various electronic components (not shown) for controlling various functions such as a call function and a mail function.
The second circuit board 23 is fixed inside the second housing 3, and the display unit 11 and the speaker unit 15 described above are electrically connected to the second circuit board 23. .

The connecting means 5 includes a substantially cylindrical rotating shaft 31 having a reference axis L1 as a center line, and a bearing portion 33 that rotatably supports the rotating shaft 31.
The rotating shaft 31 is inserted into a through-hole 3e formed in the inner surface 3d of the second housing 3 that opposes the inner surface 2a of the first housing 2 with respect to the second housing 3. Are fixed together. The rotating shaft 31 is arranged so as to protrude from the inner surface 3d side of the second housing 3 in the direction of the reference axis L1. The rotating shaft 31 is formed with a through hole 31a that penetrates in the direction of the reference axis L1 and communicates with the internal spaces of the two housings 2 and 3. The first and second circuit boards 21 and 23 provided in the respective housings 2 and 3 are electrically connected to each other by a cable 32 through the through holes 31a.

The cable 32 transmits information by electrical signals between the two circuit boards 21 and 23, and also transmits the battery power via the first and second circuit boards 21 and 23 to the display unit 11, the speaker unit 15 and various types. It can be supplied to electronic components and the like.
In addition, a substantially annular support portion 35 that protrudes outward in the radial direction over the circumferential direction is formed in the middle portion of the rotation shaft 31 in the reference axis L1 direction. Further, a protrusion 37 protruding outward in the radial direction is formed on the outer peripheral surface of the rotating shaft 31. The protrusion 37 is located in a direction from the support portion 35 toward the other end portion 31c side of the rotation shaft 31 along the reference axis L1. In addition, the protrusion 37 is positioned so as to be shifted from the reference axis L1 in the D direction in a state where the two casings 2 and 3 are closed.

The bearing portion 33 includes a box 41 fixed inside the first housing 2, a washer 43 arranged sequentially in the direction of the reference axis L 1 inside the box 41, a coil spring (biasing means) 45, and a cam Part 47.
The box 41 is formed in a substantially rectangular parallelepiped shape, and accommodates the rotating shaft 31 in a state of protruding in the direction of the reference axis L1. As shown in FIGS. 4 and 5, the box 41 includes a pair of case members 48 and 49 that can be separated in the direction of the reference axis L1. A hole 48a into which the one end 31b of the rotating shaft 31 is rotatably inserted is formed in the end surface wall portion of the first case member 48 orthogonal to the reference axis L1, and the second case orthogonal to the reference axis L1. The end wall of the member 49 is formed with a hole 49a into which the other end 31c of the rotating shaft 31 is rotatably inserted. The box body 41 is fixed inside the first housing 2 such that the end wall portion of the first case member 48 faces the inner surface 3d of the second housing 3.

The coil spring 45 is wound around the rotary shaft 31, and one end side thereof is in contact with the end surface wall portion of the first case member 48 via the washer 43, and the other end side thereof is in contact with the support portion 35 of the rotary shaft 31. It is configured as follows. That is, the rotating shaft 31 is urged by the coil spring 45 from the first case member 48 side toward the second case member 49 side.
The washer 43 disposed between the first case member 48 and the coil spring 45 prevents the first case member 48 from being damaged by the coil spring 45.

The cam portion 47 is fixed to the end surface wall portion of the second case member 49, and is inclined to face the through hole 51 through which the other end portion 31 c of the rotating shaft 31 is rotatably inserted and the protrusion 37 of the rotating shaft 31. The track 53 is provided. The inclined track 53 is inclined with respect to a reference plane orthogonal to the reference axis L1, and is formed in a substantially annular shape so as to face the rotation locus of the protrusion 37 centered on the reference axis L1. Accordingly, the protrusion 37 comes into contact with the inclined track 53 by the urging force of the coil spring 45.
As shown in FIG. 6, the inclined track 53 is a semicircular arc-shaped first extending from the reference position protruding toward the protrusion 37 along the reference axis L <b> 1 direction toward one rotation direction (A direction) of the rotation shaft 31. , And a second inclined track 57 having a semicircular arc shape extending in the rotation direction (B direction) opposite to the A direction. These first and second inclined tracks 55 and 57 have the same inclination angle with respect to the reference plane described above.

Therefore, for example, when the protrusion 37 of the rotating shaft 31 is located on the first inclined track 55, the rotating shaft 31 rotates in the A direction by the biasing force of the coil spring 45. For example, when the protrusion 37 is located on the second inclined track 57, the rotating shaft 31 rotates in the B direction by the urging force of the coil spring 45.
In addition, it is preferable to apply a lubricant to the inclined tracks 55 and 57 so that the protrusion 37 can easily move on the two inclined tracks 55 and 57. Moreover, since the rotating shaft 31 slides with respect to the inner peripheral wall surface of the through-hole 51 of the cam part 47, it is preferable that these rotating shafts 31 and the cam part 47 are formed from the material excellent in abrasion resistance.

 In addition, a holding recess 61 and a receiving recess 63 that are recessed in the direction of the reference axis L1 are formed at the reference position of the inclined track 53 and at predetermined positions of the inclined track 53 rotated by 180 ° from the reference position. The side wall surfaces of the holding recess 61 and the housing recess 63 are inclined in the circumferential direction from the bottom wall surface toward the first and second inclined tracks 55 and 57, and the first and second inclinations with respect to the reference plane. It is formed larger than the inclination angle of the tracks 55 and 57. Further, as shown in FIG. 3, the holding recess 61 is positioned so as to be shifted in the D direction with respect to the reference axis L <b> 1, and the receiving recess 63 is positioned so as to be shifted in the C direction relative to the reference axis L <b> 1. .

From the above, in the state where the two casings 2 and 3 are closed to each other, the protrusion 37 of the rotating shaft 31 is disposed at the reference position of the inclined track 53 and is applied to the holding recess 61 by the biasing force of the coil spring 45. Will be housed. Further, as shown in FIG. 7, in a state where the two casings 2 and 3 are opened to each other, the projection 37 of the rotating shaft 31 is arranged at a predetermined position of the inclined track 53, and the biasing force of the coil spring 45 It is housed in the housing recess 63.
Since the side wall surfaces of the holding recess 61 and the housing recess 63 are inclined in the circumferential direction, the rotating shaft 31 is rotated in the AB direction with respect to the cam portion 47 by a force larger than the urging force of the coil spring 45. In this case, the projection 37 moves in the direction of the reference axis L1 against the urging force of the coil spring 45, and comes out of the holding recess 61 and the receiving recess 63.

 The connecting means 5 also includes a regulating means 100 that regulates the relative rotation range of the two casings 2 and 3. As shown in FIG. 8, the restricting means 100 includes a restricting rib 71 formed to protrude radially outward from the outer peripheral surface of the rotating shaft 31 located on the one end 31 b side, and an end of the first case member 48. A pair of stoppers 73 and 75 projecting from the surface wall portion in the direction of the reference axis L 1, a ring-shaped member 77 provided to be rotatable about the reference axis L 1 with respect to the rotation shaft 31, and a radial direction from the ring-shaped member 77 And a substantially fan-shaped protruding portion 79 protruding outward. The regulation rib 71, the stoppers 73 and 75, the ring-shaped member 77, and the protruding portion 79 are all arranged outside the first case member 48.

As shown in FIG. 3, the restriction rib 71 is disposed at a reference position shifted in the D direction from the reference axis L <b> 1 in a state where the two casings 2 and 3 are closed to each other. It protrudes in the same direction as the protrusion 37. Further, as shown in FIG. 9A, the two stoppers 73 and 75 are located at positions that do not intersect the rotation locus of the regulating rib 71 that rotates together with the rotation shaft 31, and are the same circle centered on the reference axis L1. It is arranged at a position on the circumference. Further, the protruding portion 79 intersects the rotation locus of the regulating rib 71 and the two stoppers 73 and 75.
In addition, the restricting means 100 extends from the first surface 71a of the restricting rib 71 toward the A direction at the reference position to the second surface 73a of the stopper 73 that faces the first surface 71a in the circumferential direction. The phase difference is equal to the phase difference from the third surface 71b of the regulating rib 71 toward the B direction at the reference position to the fourth surface 75a of the stopper 75 facing the third surface 71b in the circumferential direction. It is comprised so that it may become. Here, the phase difference is an angular difference in the rotational direction from the first and third surfaces 71a and 71b of the regulating rib 71 to the second surface 73a of the stopper 73 and the fourth surface 75a of the stopper 75. Show.
Further, the regulating means 100 is configured such that a value obtained by subtracting the formation angle of the protrusion 79 centered on the reference axis L1 from this phase difference is 180 °. That is, the regulation rib 71 stops at a position that is exactly 180 ° rotated in the A direction from the reference position.

Therefore, when the restriction rib 71 is rotated in the A direction together with the rotation shaft 31 from the reference position, the first surface 71a of the restriction rib 71 in the A direction comes into contact with the protruding portion 79. Then, when the regulating rib 71 is further rotated in the A direction so as to push the protruding portion 79, the protruding portion 79 faces the first surface 71a in the circumferential direction as shown in FIG. 9B. It abuts against the second surface 73a of the stopper 73 and restricts the restricting rib 71 from further rotating in the A direction. That is, the regulation rib 71 stops at a position that is exactly 180 ° rotated in the A direction from the reference position.
Further, as shown in FIG. 9A, when the regulating rib 71 is rotated in the B direction together with the rotary shaft 31 from the reference position, as shown in FIG. 9C, the regulating rib 71 directed in the B direction. Since the third surface 71b contacts the protrusion 79, and the protrusion 79 contacts the fourth surface 75a of the stopper 73 facing the third surface 71b in the circumferential direction, the restriction rib 71 is Further, the rotation in the B direction is restricted. That is, the restricting rib 71 stops at a position that is exactly 180 ° rotated in the B direction from the reference position.

The operation of the mobile phone 1 configured as described above will be described.
When the cellular phone 1 is carried in a bag or a pocket of clothes, the two casings 2 and 3 are closed as shown in FIG. In this state, as shown in FIG. 3, the protrusion of the rotating shaft 31 is accommodated in the holding recess 61, thereby preventing the two casings 2 and 3 from rotating unexpectedly. In this state, for example, when browsing an incoming mail or the Internet, various information displayed on the display unit 11 can be viewed.
From this state, for example, when creating a text such as an e-mail using the operation unit 7, inputting a telephone number, or making a call using the microphone unit 9 and the speaker unit 15, as shown in FIG. The housing 3 is rotated 180 ° around the reference axis L1 with respect to the first housing 2, and the two housings 2 and 3 are mutually connected so that the operation unit 7 and the microphone unit 9 are exposed to the outside. Open to.

 When the two casings 2 and 3 are opened to each other, for example, the second casing 3 is rotated in the A direction with respect to the first casing 2 by a force larger than the biasing force of the coil spring 45. In this case, the protrusion 37 of the rotating shaft 31 comes out of the holding recess 61 and comes into contact with the first inclined track 55. In this state, the protrusion 37 moves in the A direction on the first inclined track 55 by the urging force of the coil spring 45, so that the second housing 3 automatically rotates in the A direction together with the rotation shaft 31. It will be. When the projection 37 reaches the predetermined position of the inclined track 53, it is housed in the housing recess 63 by the urging force of the coil spring 45 as shown in FIG. The rotation of the casing 3 is automatically stopped. In this state, the restricting means 100 restricts the second housing 3 from further moving in the A direction with respect to the first housing 2.

Further, when the opening operation is performed, for example, when the second housing 3 is rotated in the direction B opposite to that described above with respect to the first housing 2, the protrusion 37 of the rotating shaft 31 is moved to the second position. The inclined track 57 is contacted. In this state, since the protrusion 37 moves in the B direction on the second inclined track 57, the second casing 3 automatically rotates in the B direction with respect to the first casing 2. When the projection 37 reaches the predetermined position of the inclined track 53, it is received in the receiving recess 63, and the rotation of the second casing 3 relative to the first casing 2 is automatically stopped. In this state, the restricting means 100 restricts the second housing 3 from further moving in the B direction with respect to the first housing 2.
In the state where the two casings 2 and 3 are opened to each other, the protrusion 37 is accommodated in the accommodating recess 63, so that the second casing 3 is unexpectedly rotated with respect to the first casing 2. To prevent.
When the use of the mobile phone with the two casings 2 and 3 opened is finished, the second casing 3 is rotated in the B direction or the A direction with respect to the first casing 2. To close it. When performing this closing operation, the two casings are closed in a direction opposite to the direction in which the two casings are opened from each other.

As described above, according to the cellular phone 1, the two stoppers 73 and 75 are arranged at positions that do not intersect with the rotation trajectory of the protrusion 71, and the protrusion 79 is formed at a predetermined forming angle. The casings 2 and 3 can be opened from the closed state to just 180 °, and the mobile phone 1 can be easily handled.
In addition, the two casings 2 and 3 are rotated at their respective positions at positions where the two casings 2 and 3 are rotated 180 ° in the two rotation directions from the state in which the two casings 2 and 3 are closed by the regulating means 100. Therefore, it is possible to prevent the cable 32 from being twisted and disconnected.
Furthermore, since the holding recess 61 and the receiving recess 63 that store the protrusion of the rotating shaft 31 are disposed at positions that are rotated 180 ° from each other about the reference axis L1, the two casings 2 and 3 are mutually connected. The mobile phone 1 can be easily handled because it can be stopped at a position rotated exactly 180 °.

Further, in the state where the two casings 2 and 3 are closed to each other or opened to each other, the projection 37 of the rotating shaft 31 is accommodated in the holding recess 61 and the receiving recess 63, so The bodies 2 and 3 can be prevented from rotating with respect to each other.
Further, the projection 37 of the rotating shaft 31 is pulled out of the holding recess 61 and brought into contact with the first inclined track 55 or the second inclined track 57, whereby the two casings 2 and 3 are automatically connected to each other. Therefore, the operation of opening the two housings 2 and 3 can be easily performed. That is, for example, the two housings 2 and 3 can be moved 180 to each other simply by shifting the second housing 3 with respect to the first housing 2 with the thumb of one hand holding the first housing 2. ° It can be rotated and opened.

Further, when the two casings 2 and 3 are closed to each other, the projection 37 of the rotating shaft 31 contacts the first inclined track 55 or the second inclined track 57. These two inclined tracks Since both 55 and 57 have the same inclination angle, the second casing 3 can be rotated with the same force regardless of the rotation direction of the second casing 3 with respect to the first casing 2. it can.
In addition, when the protrusion 37 enters the holding recess 61 and the receiving recess 63 from above the first and second inclined tracks 55 and 57, the second casing 3 together with the rotating shaft 31 becomes the first casing 2. Since it moves in the approaching direction, a so-called click feeling can be obtained in which it can be easily recognized that the two casings 2 and 3 are closed or open.

In the above embodiment, the box body 41 is fixed inside the first housing 2. However, the present invention is not limited to this. For example, the box body 41 is formed integrally with the first housing 2. It does not matter. Further, although the cam portion 47 is fixed to the second case member 49, the present invention is not limited to this, and may be formed integrally with the second case member 49, for example.
Further, the washer 43 is disposed between the coil spring 45 and the first case 48, but it is sufficient that at least the first case 48 can be prevented from being damaged. For example, a thrust bearing may be disposed. Absent.

Further, the two circuit boards 21 and 23 arranged inside the respective casings 2 and 3 are electrically connected by the cable 32, but the present invention is not limited to this. For example, the circuit boards 21 and 23 are electrically connected by a flexible printed wiring board. May be connected to each other.
In addition, the protrusion 37 is formed to protrude radially outward from the outer peripheral surface of the rotating shaft 31. However, the present invention is not limited to this. For example, the protrusion 37 protrudes radially inward from the inner peripheral surface of the rotating shaft 31. It may be formed. However, in the case of this configuration, the cam portion 47 also needs to be formed inside the through hole 31 a of the rotating shaft 31.

Further, the first case member 48 is formed with a pair of stoppers 73 and 75. However, the present invention is not limited to this, and at least with respect to the first and third surfaces 71a and 71b of the regulating rib 71. The stopper provided with the 2nd and 4th surface 73a, 75a which each opposes the circumferential direction should just be formed. Accordingly, for example, the first case member 48 may be provided with the second and fourth surfaces 73a and 75a, and one stopper formed in a substantially fan shape may be formed.
Moreover, although the rotating shaft 31 was fixed to the 2nd housing | casing 3 and the bearing part 33 was fixed to the 2nd housing | casing 3, it is not restricted to this, For example, the rotating shaft 31 is a 1st housing | casing. 2 and the bearing 33 may be fixed to the second housing 3.

Furthermore, the present invention is not limited to the mobile phone 1, and may be any mobile terminal device in which two housings are connected to each other by a connecting means and can be opened and closed like a PDA or a notebook computer.
As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, the concrete structure is not restricted to this embodiment, The design change etc. of the range which does not deviate from the summary of this invention are included.

It is a schematic perspective view which shows the state which opened the 1st and 2nd housing | casing which comprises the mobile telephone which concerns on one Embodiment of this invention mutually. FIG. 2 is a schematic perspective view showing a state in which the first and second housings are mutually closed in the mobile phone of FIG. 1. FIG. 3 is an enlarged cross-sectional view showing the arrangement of various parts constituting the connecting means in the mobile phone of FIG. 2. FIG. 2 is a schematic perspective view showing a state in which the components of the connecting means are separated from each other in the mobile phone of FIG. 1. FIG. 2 is an enlarged perspective view showing a configuration of a connecting means in the mobile phone of FIG. 1. FIG. 2 is an enlarged perspective view showing a cam portion in the mobile phone of FIG. 1. FIG. 2 is an enlarged cross-sectional view showing the arrangement of various parts constituting the connecting means in the mobile phone of FIG. 1. FIG. 2 is an enlarged perspective view showing a configuration of a restricting unit in the mobile phone of FIG. 1. FIG. 2 is a schematic plan view showing the position of the regulating rib of the regulating means in the mobile phone of FIG. 1, wherein (a) shows the arrangement of the regulating rib in a state where the two housings are closed, and (b) shows (a). (C) shows the arrangement of the regulating ribs when rotated in the B direction from the state (a), respectively.

Explanation of symbols

1 Mobile phone (mobile terminal device)
2 First housing 3 Second housing 5 Connecting means 31 Rotating shaft 37 Protrusion 45 Biasing means 53 Inclined orbit 55 First inclined orbit 57 Second inclined orbit 61 Holding recess 63 Housing recess 71 Control rib 71a First 1 surface 71b third surface 73, 75 stopper 73a second surface 75a fourth surface 77 ring-shaped member 79 projecting portion 100 regulating means L1 reference axis

Claims (3)

A first housing and a second housing which are arranged so as to be able to overlap with each other, and a connecting means which connects the first and second housings so as to be rotatable around an axis extending in the overlapping direction. A portable terminal device comprising:
The connecting means is formed to extend in the axial direction and is fixed to one housing side, a protrusion that can rotate integrally with the rotation shaft, and the other of the protrusions facing the rotation locus of the protrusion. A substantially annular inclined track formed on the housing side and inclined with respect to a reference plane orthogonal to the axis, and an urging means for urging the protrusion toward the inclined track,
The first housing has a first circuit board,
The second casing has a second circuit board,
The rotating shaft has a through-hole penetrating in the axial direction inside, and wiring for electrically connecting the first circuit board and the second circuit board through the through-hole is disposed,
At the reference position of the inclined track, a holding recess that is recessed in the axial direction to accommodate the protrusion is formed,
The inclined trajectory includes a first inclined trajectory that goes from the reference position in one rotational direction and a second inclined trajectory that goes from the reference position in another rotational direction opposite to the one rotational direction. The mobile terminal device is characterized in that the inclination angles of the first and second inclined tracks with respect to the reference plane are equal.   2. The portable terminal device according to claim 1, wherein an accommodation recess is formed at a predetermined position of the inclined trajectory rotated by 180 ° from the reference position so as to be recessed in the axial direction and accommodate the projection. . A connecting member that connects the first housing and the second housing so as to be rotatable around an axis extending in the overlapping direction;
A rotation shaft that extends in the axial direction and is fixed to one housing side, a protrusion that can rotate integrally with the rotation shaft, and a rotation locus of the protrusion that is formed on the other housing side. A substantially annular inclined orbit inclined with respect to a reference plane orthogonal to the axis, and an urging means for urging the protrusion toward the inclined orbit,
The first housing has a first circuit board,
The second casing has a second circuit board,
The rotating shaft has a through-hole penetrating in the axial direction inside, and wiring for electrically connecting the first circuit board and the second circuit board through the through-hole is disposed, At the reference position of the inclined track, a holding recess that is recessed in the axial direction to accommodate the protrusion is formed,
The inclined trajectory includes a first inclined trajectory that goes from the reference position in one rotational direction and a second inclined trajectory that goes from the reference position in another rotational direction opposite to the one rotational direction. The connecting member is characterized in that the inclination angles of the first and second inclined tracks with respect to the reference plane are equal.

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