JP2007132451A - Portable apparatus and hinge device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce manufacturing cost of a cellular phone of rotatably connecting a transmission side casing and a receiving side casing by two hinge devices. <P>SOLUTION: Connecting cylinder parts 2b and 2c of the transmission side casing 2 and connecting cylinder parts 3b and 3c of the receiving side casing 3 are rotatably connected with each other about a rotational axis L as a center by the two hinge devices (unillustrated). The two hinge devices are constituted of the same structure, and use a device having a click mechanism. One hinge device determines a phase in the peripheral direction with the rotational axis L as the center so as to stop the receiving side casing 3 in a closing position with a click feeling. The other hinge device determines a phase in the peripheral direction with the rotational axis L as the center so as to stop the receiving side casing 3 in a communication position with a click feeling. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a portable device such as a foldable mobile phone or a notebook computer, and a hinge device suitable for use in the portable device.

  In general, as described in Patent Documents 1 and 2 below, a mobile phone includes a transmitting side housing and a receiving side housing. The receiving side housing is connected to the transmitting side housing so as to be rotatable about a rotation axis by two hinge devices. The range of rotation of the receiving side housing is between a closed position where the front face of the sending side housing hits the front face of the sending side housing and a call position (open position) that is separated from the closed position by a predetermined angle (for example, 160 °). There is a limit in between. Each of the two hinge devices has a click mechanism. Each click mechanism of the two hinge devices stops the receiving side housing with a click feeling with a predetermined amount of force at the closed position and the call position.

Japanese Patent Laid-Open No. 11-50727 JP 2001-152728 A

  In the mobile phone, two hinge devices configured in mirror symmetry are used as the two hinge devices. This is because the closed position where the receiving side housing is stopped by each click mechanism and the call position are separated from each other by 160 ° instead of 180 ° in the circumferential direction around the rotation axis. However, when two hinge devices to be mirrored are used, the click mechanism of at least one hinge device and the click mechanism of the other hinge device have different structures. For this reason, two types of hinge devices are required for one mobile phone, and the hinge device is expensive. As a result, there is a problem that the manufacturing cost of the portable device increases.

In order to solve the above problem, the portable device according to the present invention is rotated around the rotation axis by two hinge devices in which the first housing and the second housing are arranged on the rotation axis. In the portable devices that are connected to each other and each of the hinge devices has a click mechanism that stops the second housing with respect to the first housing with a predetermined magnitude of force, each click mechanism of the two hinge devices includes: It arrange | positions so that the said 2nd housing | casing may be stopped in each different rotation position, It is characterized by the above-mentioned.
In this case, it is desirable that the click mechanisms of the two hinge devices have the same configuration. In particular, it is desirable that the two hinge devices have the same configuration.
The click mechanism includes a fixed member and a movable member that are arranged opposite to each other on the rotation axis, and an urging unit that urges the movable member toward the fixed member. A member is provided in any one of the first housing and the second housing so as not to be rotatable and immovable in a direction away from the movable member along the rotational axis. The other one of the first housing and the second housing is provided so as not to be rotatable and movable in a direction approaching and separating from the fixing member along the rotation axis. An engagement recess is formed on one of the facing surfaces of the movable member, and by engaging the engagement recess on the other of the facing surfaces of the fixed member and the movable member, The fixing member and the upper member cooperate with the engaging recess and the biasing means. An engagement convex portion that stops the movable member with a predetermined magnitude of force is formed, and the second casing rotates when the engagement concave portion and the engagement convex portion of the one click mechanism are engaged with each other. It is desirable that the position and the rotation position of the second housing when the engaging concave portion and the engaging convex portion of the other click mechanism are engaged are different from each other.
Further, the hinge device according to the present invention includes a fixed member, a movable member connected to the fixed member so as to be rotatable about a rotation axis, and capable of moving toward and away from the fixed member, and the movable member to the fixed member. Urging means for urging so as to approach each other, and one of the opposing surfaces of the fixed member and the movable member is disposed apart from each other in the circumferential direction on a circumference centered on the rotation axis. A pair of guide recesses and a pair of guide grooves extending from the respective engagement recesses through the inside of the other engagement recess in the same circumferential direction, and the other according to the rotation of the movable member. In the hinge device in which the engagement convex portion that engages with the engagement concave portion or moves in the longitudinal direction in the guide groove is formed,
The tip ends of the pair of guide grooves are characterized in that they are closed without being opened to a recess having a width wider than that of the guide grooves.
In this case, the tip end portion of the guide groove is disposed outside the intermediate portion of the guide groove intersecting the line connecting the rotation axis and the engagement recess in the radial direction of the circle centering on the rotation axis. It is desirable that

  According to the present invention having the above-described characteristic configuration, the position at which the click mechanism of one hinge device stops the receiving-side housing is different from the position at which the click mechanism of the other hinge device stops the receiving-side housing. Since the two hinge devices are arranged in the same manner, the two hinge devices having the same configuration can be operated in the same manner as the two hinge devices to be mirrored. That is, in the portable device of the present invention, the same hinge device can be adopted as the two hinge devices. Therefore, the manufacturing cost of the portable device can be reduced.

The best mode for carrying out the present invention will be described below with reference to the drawings.
FIG. 1 shows a mobile phone (mobile device) 1 according to the present invention. The mobile phone 1 includes a transmitting side casing (first casing) 2 and a receiving side casing (second casing) 3. One end of the transmitting side housing 2 and the receiving side housing 3 is coupled so as to be rotatable about a rotation axis L. The rotation range of the transmitting side housing 2 and the receiving side housing 3 is limited between the closed position and the call position (open position). The closed position is defined by the front surfaces 2a and 3a of the transmitting side housing 2 and the receiving side housing 3 abutting each other. In FIG. 1, the receiver case 3 located in the closed position is indicated by an imaginary line. The call position is a position that is separated from the closed position by a predetermined angle (approximately 170 ° in this embodiment), and is defined by the abutting of the adjacent ends of the housings 2 and 3. In FIG. 1, the receiving side housing 3 located at the call position is indicated by a solid line. In the following, for convenience of explanation, it is assumed that the receiving side housing 3 rotates with respect to the transmitting side housing 2.

  The connection structure between the transmitting side housing 2 and the receiving side housing 3 will be described in more detail. A pair of connecting cylinder portions 2b and 2c are formed at one end of the transmitting side housing 2. The connecting cylinder portions 2b and 2c are arranged so that their axes coincide with the rotation axis L and are spaced apart from each other in the direction of the rotation axis L. On the other hand, a pair of connecting tube portions 3 b and 3 c are formed at one end of the receiver-side housing 3. The connecting cylinder portions 3b and 3c are arranged such that their axis lines coincide with the rotation axis line and are spaced apart from each other in the rotation axis direction. Moreover, the connecting tube portions 3b and 3c are inserted between the connecting tube portions 2b and 2c. The connecting cylinder portions 2b, 3b; 2c, 3c adjacent to each other in the direction of the rotation axis L are connected to each other by a pair of hinge devices 10, 10 that are configured identically. Thereby, the transmission side housing | casing 2 and the receiving side housing | casing 3 are connected so that rotation centering on the rotation axis L is possible.

  As shown in FIGS. 3 to 5, the hinge device 10 includes a first hinge member 11, a second hinge member 12, a hinge shaft 13, and a click mechanism 20.

  The first hinge member 11 has a bottomed cylindrical shape, and most of the bottom portion 11a side is fitted to the inner peripheral surface of the connecting cylinder portion 2b. Moreover, the first hinge member 11 is non-rotatably connected to the connecting cylinder portion 2b by key connection or the like. Therefore, the first hinge member 11 rotates integrally with the transmission side housing 2. However, since the transmission-side casing 2 is assumed to be fixed in position here, the first hinge member 11 also does not rotate. An end of the first hinge member 11 on the opening side protrudes from the connecting cylinder part 2b and is fitted to the connecting cylinder part 3b so as to be rotatable. Accordingly, the connecting cylinder portions 2 b and 3 b are connected to each other via the first hinge member 11 so as to be rotatable.

  The second hinge member 12 has a disc portion 12a and a neck portion 12b. The disc part 12a is non-rotatably fitted to the connecting cylinder part 3b by key connection or the like. The neck portion 12b is inserted through an annular protruding portion 3d formed on the inner peripheral surface of the connecting cylinder portion 3b. A sandwiching protrusion 12c is formed at the tip of the neck 12b protruding outward from the connecting cylinder 3b. By sandwiching the annular projecting portion 3d by the sandwiching projecting portion 12c and the disc portion 12a, the second hinge member 12 is fixed in a position immovable in the axial direction of the connecting cylinder portion 3b, that is, in the rotation axis L direction. Yes. The neck portion 12b can be elastically expanded and contracted by forming a slit 12d. When the neck 12b is reduced in diameter, the sandwiching protrusion 12c can penetrate the annular protrusion 3d. After the penetration, when the diameter of the neck 12b is increased, the sandwiching protrusion 12c cooperates with the disk portion 12a to form an annular shape. The protrusion 3d is sandwiched.

  The hinge shaft 13 has a disc-shaped head portion 13a and a shaft portion 13b provided integrally with the central portion of one end surface of the head portion 13a. The head portion 13 a is abutted against the outer end surface of the bottom portion 11 a of the first hinge member 11. The shaft portion 13b is rotatably inserted into a through hole 11b formed in the center portion of the bottom portion 11a with the axis line coinciding with the rotation axis L. The distal end portion of the shaft portion 13 b protrudes from the opening side end portion of the first hinge member 11 to the outside. Then, the second hinge member 12 is fitted in a through hole 12e formed at the central portion of the disk portion 12a of the second hinge member 12 so that the axis line coincides with the rotation axis L so that the second hinge member 12 cannot rotate but cannot move. Accordingly, the hinge shaft 13 is arranged with its axis line coincident with the rotation axis L, and the first hinge member 11 and the second hinge member 12 are connected so as to be relatively rotatable about the rotation axis L. ing.

  A click mechanism 20 is provided between the first hinge member 11 and the second hinge member 12. The click mechanism 20 includes a fixed member 21, a movable member 22, and a coil spring (biasing means) 23.

  The fixing member 21 is formed in a disk shape. The fixing member 21 is pressed against the surface of the second hinge member 12 facing the first hinge member 11 and does not substantially move in the direction of the rotation axis L with respect to the second hinge member 12. In addition, the central portion of the fixing member 21 is passed through the hinge shaft 13 so as not to rotate, and rotates together with the second hinge member 12. Therefore, the fixing member 21 may be formed integrally with the second hinge member 12.

  The movable member 22 has a disc shape, and is fitted to the opening side end of the first hinge member 11 so as not to rotate and to move in the direction of the rotation axis L. Therefore, the movable member 22 rotates integrally with the first hinge member 11. The central portion of the second hinge member 22 is penetrated so as to be rotatable by the hinge shaft 13 and movable in the direction of the rotation axis L.

  The coil spring 23 is accommodated in an annular space formed between the inner peripheral surface of the first hinge member 11 and the outer peripheral surface of the hinge shaft 13. One end of the coil spring 23 abuts against the bottom 11 a of the first hinge member 11. The other end of the coil spring 23 abuts against the movable member 22. Therefore, the coil spring 23 biases the movable member 22 toward the fixed member 21 side.

  A surface 21 a of the fixed member 21 facing the movable member 22 is a plane orthogonal to the rotation axis L. As shown in FIG. 6, a pair of engaging recesses 21b and 21c and a pair of guide grooves 21d and 21e are formed on the facing surface 21a. The pair of engaging recesses 21b are disposed 180 degrees apart from each other on one circumference centered on the rotation axis L. The pair of guide grooves 21 d and 21 e extends in the circumferential direction of the fixing member 21. The widths of the guide grooves 21d and 21e in the radial direction of the fixing member 21 are constant except for the rounded-up portion 21f at the tip, and are narrower than the widths of the engagement recesses 21b and 21c in the same direction. Further, the depth of the guide grooves 21d and 21e is constant except for the raised portion 21f, and is shallower than the engaging recesses 21b and 21c.

As shown in FIGS. 6 and 7, the base end portion of one guide groove 21 d communicates with one end portion of the engaging recess 21 b in the circumferential direction centering on the rotation axis L. That is, the base end portion of the guide groove 21d is opened to the engagement recess 21b by intersecting with the engagement recess 21b. The distal end portion of the guide groove 21d passes from the engagement recess 21b to the inside of the engagement recess 21c and extends over a half circumference. In this case, the guide groove 21d is close to the adjacent portion 21g closest to the engaging recess 21c, that is, to the portion where the guide groove 21c intersects the line D connecting the rotation axis L and the center C of the engaging recess 21c. As it goes from the engagement recess 21b toward the proximity, it extends in a spiral shape so as to go inward in the radial direction of the fixing member 21 (the radial direction of the circle centering on the rotation axis L). On the other hand, the portion on the distal end side of the guide groove 21d following the adjacent portion 21g extends spirally so as to go outward in the radial direction of the fixing member 21 as it moves away from the proximal portion 21g toward the distal end side. The guide groove 21d may be formed such that an intermediate portion between the engaging recess 21b and the adjacent portion 21f is located on the radially inner side from the other portions. As shown in FIGS. 6 to 8, the tip end of the guide groove 21d is closed by a raised portion 21f without being opened to a recess or the like wider than the guide groove 21d. The rounded-up portion 21f is constituted by a part of the concave spherical surface. As a result, the width and depth of the raised portion 21f become smaller toward the tip side. The cut-up portion 21f of the guide groove 21d may be formed by a plane orthogonal to the facing surface 21a and the guide groove 21d as shown in FIGS. Moreover, it may replace with the plane shown in FIG.9 and FIG.10, and you may comprise by the inclined surface shown in FIG.
The other guide groove 21e extends from the engaging recess 21c in the same circumferential direction as the guide groove 21d, and is formed symmetrically about the guide groove 21d and the rotation axis L. Therefore, the description of the guide groove 21e is omitted.

  A pair of housing recesses 22b and 22c are formed on a surface 22a of the movable member 22 facing the fixed member 21. The housing recesses 22b and 22c are arranged 180 degrees apart in the circumferential direction with the rotation axis L as the center. Each housing recess 22 b, 22 c extends in the radial direction of the movable member 22. That is, it extends on a line orthogonal to the rotation axis L. In each of the receiving recesses 22b and 22c, spherical bodies (engaging protrusions) 24 and 25 are accommodated as rolling elements so as to be movable in the longitudinal direction of the receiving recesses 22b and 22c. Each of the spheres 24 and 25 protrudes from the receiving recesses 22b and 22c, and the protruding portions are engaged recesses 21b and 21c of the fixing member 21 or guide grooves 21d and 21e by the biasing force of the coil spring 23. It is abutted against the bottom of each. Accordingly, when the spherical bodies 24 and 25 roll in the guide grooves 21d and 21e as the receiver 3 and the fixing member 21 rotate, the spherical bodies 24 and 25 roll in the housing recesses 22b and 22c in the longitudinal direction.

  One of the hinge devices 10 configured as described above is inserted into the connecting tube portions 2b and 3b, and the other hinge device 10 is inserted into the connecting tube portions 2c and 3c. In this case, one hinge 10 is inserted in the order of the connecting cylinder parts 2b and 3b from the opening on the outside of the connecting cylinder part 2b, and the other hinge 10 is connected to the connecting cylinder part 2c from the opening on the outside of the connecting cylinder part 2c. , 3c in this order. Therefore, the two hinges 10 and 10 are opposite to each other. By inserting the two hinge devices 10, 10 into the connecting cylinder portions 2 b, 3 b; 2 c, 3 c, the receiving housing 3 can be rotated around the rotation axis L in the transmitting housing 2. It is connected. In addition, the receiver-side housing 3 is stopped with a click feeling at the closed position by the hinge device 10 inserted into the connecting tube portions 2b and 3b, and at the call position by the hinge device 10 inserted into the connecting tube portions 2c and 3c. It can be stopped with a click.

  That is, the one hinge device 10 inserted into the connecting cylinder portions 2b and 3b has two spheres as shown by a solid line in FIG. 6 when the receiving housing 3 and the fixing member 21 are in the closed position. In the circumferential direction around the rotation axis L of the hinge device 10 with respect to the connecting cylinder portions 2b and 3b, 24 and 25 come into contact with the end portions of the bottom surfaces of the engaging recesses 21b and 21c on the guide grooves 21d and 21e side. The phase is defined. Each end portion of the bottom surface of the engaging recesses 21b and 21c against which the spheres 24 and 25 abut has an upward gradient from the talking position toward the closed position (in the direction of arrow A in FIG. 6). Therefore, the urging force of the coil spring 23 is converted into a rotation urging force that urges the fixing member 21 in the direction of arrow A by the bottom surfaces of the engaging recesses 21b and 21c and the spheres 24 and 25. With this turning biasing force, the fixing member 21 and the receiver-side housing 3 are maintained in the closed position. When the receiving housing 3 is located within a predetermined angle range between the closed position and a position away from the closed position by a predetermined angle from the closed position, the spheres 24 and 25 are engaged with the engaging recess 21c. , 21d. Therefore, when the receiving housing 3 can be freely rotated within a predetermined angle range, the receiving housing 3 is moved to the closed position by the rotating biasing force based on the biasing force of the coil spring 23. Rotated in the A direction, the front surface 3 a of the receiver-side housing 3 hits the front surface 2 a of the transmitter-side housing 2. Therefore, the receiver-side housing 3 is stopped at a closed position with a click feeling with a predetermined amount of force.

  When the receiving-side housing 3 rotates from the closed position toward the talking position in the direction of arrow B by the predetermined angle or more, the spheres 24 and 25 escape from the engaging recesses 21b and 21c and enter the guide grooves 21d and 21e, respectively. Get in. And it rolls in the guide grooves 21d and 21e with rotation of the receiving side housing | casing 3. As shown in FIG. When the receiving body 3 reaches the talking position, the spheres 24 and 25 are 170 ° from the positions near the engaging recesses 21c and 21b, that is, the positions indicated by the solid lines in FIG. 6, as indicated by the imaginary lines in FIG. Reach away.

  The other hinge device 10 inserted into the connecting cylinder portions 2c and 3c has two spheres 24 and 25 engaged when the receiver-side housing 3 is located at the call position, as indicated by an imaginary line in FIG. The circumferential phase around the rotation axis L of the hinge device 10 with respect to the connecting cylinder portions 2b and 3b is determined so as to abut against the end portions on the guide grooves 21d and 21e side of the bottom surfaces of the combined recesses 21b and 21c. Yes. Here, the other hinge device 10 and the one hinge device 10 have the same configuration, and are arranged in opposite directions. Therefore, each end portion of the bottom surface of the engaging recesses 21b and 21c against which the spheres 24 and 25 abut is inclined upward from the closed position toward the talking position (in the direction of arrow B in FIG. 7). The urging force of the coil spring 23 is converted into a rotation urging force that urges the fixing member 21 in the direction of arrow B by the bottom surfaces of the combined recesses 21 b and 21 c and the spheres 24 and 25. Therefore, the fixing member 21 and the receiving housing 3 are maintained at the call position. When the receiving housing 3 is located between the call position and the position away from the call position to the closed position by the predetermined angle, the spheres 24 and 25 enter the engaging recesses 21c and 21d. Therefore, when the receiving-side housing 3 can be freely rotated, the receiving-side housing 3 is rotated to the talking position by the rotating biasing force based on the biasing force of the coil spring 23, and the receiving The end of the side housing 3 abuts against the end of the transmission side housing 2. Therefore, the receiving side housing 3 is stopped at a call position with a click feeling with a predetermined amount of force.

  When the receiving-side housing 3 rotates from the talking position toward the closed position in the direction of arrow A by a predetermined angle or more, the spheres 24 and 25 escape from the engaging recesses 21b and 21c and enter the guide grooves 21d and 21e, respectively. . And it rolls in the guide grooves 21d and 21e with rotation of the receiving side housing | casing 3. As shown in FIG. When the receiver-side housing 3 reaches the closed position, the spheres 24 and 25 are 170 ° from the positions near the engaging recesses 21c and 21b, that is, the positions indicated by the imaginary lines in FIG. 7, as indicated by solid lines in FIG. Reach away.

  In the mobile phone 1 having the above configuration, the two hinge devices 10 and 10 (click mechanisms 20 and 20) are arranged with different phases in the circumferential direction around the rotation axis L. As two hinge devices for stopping at two different positions of the closed position and the call position, two hinge devices 10 and 10 having the same configuration can be used. Therefore, the manufacturing cost of the mobile phone 1 can be reduced.

  Further, in this cellular phone 1, since the two hinge devices 10 and 10 are arranged with different phases, the click mechanism 20 of one hinge device 10 is engaged with the spheres 24 and 25 in the closed position. Only the joint recesses 21b and 21c may be formed, and the click mechanism 20 of the other hinge device 10 may be formed only with the engagement recesses 21b and 21c with which the spheres 24 and 25 are engaged at the talking position. In other words, it is only necessary to form the engagement recesses 21b and 21c communicating with the base end portions of the guide grooves 21d and 21e in either of the two hinge devices 10 and 10, and at the distal ends of the guide grooves 21d and 21e. It is not necessary to form an engaging recess that communicates. Thereby, the front-end | tip part of the guide grooves 21d and 21e can be arrange | positioned to radial direction outer side.

  That is, when two hinge devices 10, 10 are arranged in the same phase in the circumferential direction as in a conventional cellular phone, the receiving housing 3 is stopped with a click feeling at two positions, a closed position and a call position. In order to achieve this, it is necessary to form engagement recesses similar to the engagement recesses 21d and 21e on the opposing surface 21a of the fixing member 21, and to connect the respective engagement recesses to the distal ends of the guide grooves 21d and 21e. Don't be. The guide grooves 21d and 21e are communicated with the engaging recesses at the distal ends thereof, and the distal ends of the guide grooves 21d and 21e are brought inward in the radial direction of the fixing member 21 by the difference in width between the engaging recesses and the guide grooves 21d and 21e. Will have to be positioned. This is to prevent the wide engaging recesses communicating with the tip portions of the guide grooves 21d and 21e from overlapping the guide grooves 21e and 21d, respectively. When the distal ends of the guide grooves 21d and 21e are positioned on the inner side in the radial direction, the receiver-side housing 3 is rotated by 180 ° or more from the closed position, and as a result, the spheres 24 and 25 are moved to the distal ends of the guide grooves 21d and 21e ( When the guide grooves 21d and 21e reach the tip end portion extending in the circumferential direction through the inside of the engagement recesses 21b and 21c, the guide grooves 21d and 21e are equal to the difference in width between the engagement recesses and the guide grooves 21d and 21e. Corresponding to being arranged only on the inner side, the spheres 24 and 25 are located on the inner side in the radial direction. That is, the spheres 24 and 25 abut each other at a location closer to the bottom surfaces of the guide grooves 21d and 21e and the rotation axis L. As a result, the stability between the fixed member 21 and the movable member 22 is lowered, and as a result, the stability between the transmitting side housing 2 and the receiving side housing 3 may be lowered.

  In this respect, in the hinge device 10 used in the cellular phone 1, the leading end portions of the guide grooves 21d and 21d are not opened in communication with the engaging recesses and the like, and the rounded portion 21f whose width gradually decreases. Therefore, the tip end portions of the guide grooves 21d and 21e can be arranged on the radially outer side of the fixing member 21 by the difference in width between the engaging recess and the guide grooves 21d and 21e. Therefore, the spheres 24 and 25 are positioned on the radially outer side of the fixing member 21 when rolling to the tip ends of the guide grooves 21d and 21e. Therefore, the stability of the transmitting side housing 2 and the receiving side housing 3 can be improved.

  Next, modified examples of the fixed member 21 and the movable member 22 of the above embodiment will be introduced. In addition, about the following modifications, only the structure different from the said fixed member 21 and the movable member 22 is demonstrated, the same code | symbol is attached | subjected to the same component and the description is abbreviate | omitted.

  FIG. 12 shows a first modification of the fixed member 21 and the movable member 22. The fixed member 21 </ b> A and the movable member 22 </ b> A according to this modification are used for a mobile phone in which the receiving side housing 3 can be rotated about 360 ° with respect to the transmitting side housing 2.

  A pair of engaging recesses 21b and 21c and a pair of guide grooves 21d and 21e are formed on a surface 21a of the fixed member 21A facing the movable member 22A. One engaging recess 21b is disposed radially inward of the fixing member 21A with respect to the other engaging recess 21c. The guide groove 21d extends from one end to the other end in the circumferential direction of the engagement recess 21b on the circumference where the engagement recess 21b is disposed. The guide groove 21e extends from one end to the other end in the circumferential direction of the engagement recess 21c on the circumference where the engagement recess 21c is disposed.

  On the surface of the movable member 22A facing the fixed member 22a, spheres 24 and 25 are provided with fixed positions. The spherical body 24 is disposed on the same circumference as the engaging recess 21b. Therefore, when the receiving side housing 3 rotates, the sphere 24 moves between the one end and the other end of the engaging recess 21b through the guide groove 21d. The spherical body 25 is disposed on the same circumference as the engaging recess 21c. Therefore, when the receiving side housing 3 rotates, the sphere 25 moves between the one end and the other end of the engaging recess 21c through the guide groove 21e. Instead of the spheres 24 and 25, a projecting portion having a hemispherical shape or another shape may be formed integrally with the movable member 22.

  The two hinge devices having the fixing members 21A and 22A are arranged with phases different from each other by 180 °, for example. By arranging in this way, the receiver-side housing 3 can be stopped with a click feeling approximately every 180 °.

  FIG. 13 shows a second modification of the fixing member 21 and the fixing member 22. In the fixed member 21B according to this modification, only one engaging recess 21b is formed on the surface 21a facing the movable member 22B, and the engaging recess 21c and the pair of guide grooves in the above embodiment are provided. 21d and 21e are not formed. Correspondingly, only the sphere 24 is fixedly provided on the surface 22a of the movable member 22B facing the fixed member 21B. Of course, the spherical body 24 is disposed on the same circumference as the engaging recess 21b.

  According to the mobile phone in which the two hinge devices having the fixing members 21B and 22B are used, there is no restriction on the movement range with respect to the sphere due to the guide groove, and therefore the rotation range of the reception side case 3 relative to the transmission side case 2 Can be arbitrarily set within a range of 360 ° or less. Also, by arranging the two hinge devices in the circumferential direction with different phases by an angle θ1 (<360 °), the receiving-side housing 3 can be stopped with a click feeling at two positions separated by the angle θ. If two engaging recesses 21b are formed 180 degrees apart in the circumferential direction and the two hinge devices are arranged with different phases by an angle θ2 (<180 °), two positions 180 ° apart from each other It can be stopped with a click feeling at four positions including two positions separated from the position by an angle θ2.

  FIG. 14 shows a third modification of the fixing member 21 and the fixing member 22. In the fixed member 21C according to this modification, an inclined surface 21f that crosses the fixed member 21C along its radial line is formed on a surface 21a of the fixed member 21C facing the movable member 22C. On the other hand, an inclined surface 22c that crosses the movable member 22 along its radial line is formed on the surface 22a of the movable member 22C facing the fixed member 21C. When the inclined surface 22c abuts against the inclined surface 21f, the urging force of the coil spring 23 is converted into a rotating urging force.

In addition, this invention is not limited to said embodiment, In the range which does not deviate from the summary, it can change suitably.
For example, in the above embodiment, the engaging recesses 21b and 21c are formed in the fixed member 21, and the spheres 24 and 25 are provided in the movable member 22. However, the spheres 24 and 25 are provided in the fixed member 21, The movable member 22 may be provided with engaging recesses 21b and 21c.

It is a side view which shows one Embodiment of the mobile telephone which concerns on this invention in the state which rotated the receiving side housing | casing to the call position. It is a top view of the embodiment. It is an expanded sectional view which follows the XX line of FIG. It is a disassembled perspective view of the hinge apparatus used in the embodiment. It is a disassembled perspective view when it sees from the direction different from FIG. 4 of the hinge apparatus. It is an enlarged view when the fixing member of one hinge apparatus is seen along the XX line of FIG. It is a figure similar to FIG. 6 which shows the fixing member of the other hinge apparatus. It is an expanded sectional view which follows the XX line of FIG. It is a top view which shows the other example of a guide groove. It is sectional drawing which follows the XX line of FIG. It is sectional drawing similar to FIG. 10 which shows the other example of a guide groove. It is a perspective view which shows the 1st modification of the fixing member used in the hinge apparatus which concerns on this invention, and a movable member. It is a perspective view which shows the 2nd modification of the fixed member and a movable member. It is a perspective view which shows the 3rd modification of the fixed member and a movable member.

Explanation of symbols

L Rotation axis 1 Mobile phone (mobile device)
2 Sent-side housing (first housing)
3 Receiver side housing (second housing)
DESCRIPTION OF SYMBOLS 10 Hinge apparatus 20 Click mechanism 21 Fixed member 21a Opposite surface 21b (with movable member) Engagement recessed part 21c Engagement recessed part 21d Guide groove 21e Guide groove 21f Round-up part 22 Movable member 22a Opposed surface 23 Coil Spring (biasing means)
24 Sphere (engagement convex part)
25 Sphere (engagement convex part)

Claims (6)

A first housing and a second housing are connected to each other by two hinge devices arranged on a rotation axis so as to be rotatable about the rotation axis, and each hinge device connects the second housing to the first housing. In portable devices each having a click mechanism that stops with a force of a predetermined size with respect to one housing,
Each of the click mechanisms of the two hinge devices is arranged so as to stop the second housing at different rotation positions. 2. The portable device according to claim 1, wherein the click mechanisms of the two hinge devices have the same configuration. The portable device according to claim 1, wherein the two hinge devices have the same configuration. The click mechanism includes a fixed member and a movable member that are arranged opposite to each other on the rotation axis, and an urging unit that urges the movable member toward the fixed member. A member is provided in any one of the first housing and the second housing so as not to be rotatable and immovable in a direction away from the movable member along the rotational axis. The other one of the first housing and the second housing is provided so as not to be rotatable and movable in a direction approaching and separating from the fixing member along the rotation axis. An engagement recess is formed on one of the facing surfaces of the movable member, and by engaging the engagement recess on the other of the facing surfaces of the fixed member and the movable member, The fixing member and the upper member cooperate with the engaging recess and the biasing means. Engaging protrusion for stopping a movable member with a predetermined force is formed,
The rotation position of the second housing when the engagement concave portion and the engagement convex portion of the one click mechanism are engaged, and the engagement concave portion and the engagement convex portion of the other click mechanism are engaged. 4. The portable device according to claim 2, wherein the portable device is disposed so that the rotation position of the second housing is different from each other when the second housing is rotated. A fixed member, a movable member connected to the fixed member so as to be rotatable about a rotation axis, and capable of moving toward and away from the fixed member, and an urging means for urging the movable member to approach the fixed member A pair of engaging recesses disposed on a circumference centered on the rotation axis and spaced apart from each other in the circumferential direction, and each engagement A pair of guide grooves extending in the same circumferential direction from the joint recess through the inside of the other engagement recess is formed, and the other is engaged with the engagement recess or the guide according to the rotation of the movable member. In the hinge device in which the engaging convex portion moving in the longitudinal direction in the groove is formed,
A hinge device characterized in that the tip portions of the pair of guide grooves are closed without being opened to a recess having a width wider than the guide grooves. A tip end portion of the guide groove is disposed outside in a radial direction of a circle centered on the rotation axis from an intermediate portion of the guide groove intersecting a line connecting the rotation axis and the engagement recess. The hinge device according to claim 5.

Images