JP4537930B2 - Horizontal rotation mechanism for portable devices - Google Patents

Description

The present invention relates to a horizontal rotation mechanism of a portable device that is suitable for opening and closing a first housing and a second housing.

2. Description of the Related Art In a mobile phone that is a type of mobile device, a first housing as a transmitter that has a keyboard, a microphone, etc. on its upper surface, and a second housing as a receiver that has a display, speaker, etc. on its upper surface. A closed state in which the first casing and the second casing overlap with each other so as to cover the upper surface of the first casing with the second casing, and the upper surface of the first casing. There is known a device with a horizontal rotation mechanism that creates an open state in which the upper surface of a first housing is exposed by rotating approximately 180 ° in a plane direction parallel to the surface. As such a horizontal rotation mechanism of a mobile phone, a mechanism described in Patent Document 1 described below is known.
JP 2002-111238 A

  As described in Patent Document 1, the first casing and the second casing are provided in the vicinity of the front end portion thereof so as to be perpendicular to the upper surface of the first casing and the lower surface of the second casing. The first casing and the second casing are connected to each other by two hinge units so that the first casing and the second casing can be rotated by 180 ° in a plane direction parallel to the surfaces. As described above, since the first housing and the second housing are connected to each other by 180 degrees so as to be rotatable by one hinge unit, the position of the second housing with respect to the first housing in the opened state is 1. For example, the display unit provided in the second housing can only be used in a portrait orientation, and the function of the mobile phone cannot be fully exhibited. That is, in recent years, mobile phones having a variety of functions such as a function using a communication line such as the Internet and a game function in addition to a call function are on the market. In such a mobile phone, if the display unit can only be used in a portrait orientation, the function may not be fully exhibited.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a portable device capable of positioning the first housing and the second housing constituting the portable device in a plurality of open states. It is to provide a horizontal rotation mechanism .

In order to achieve the above object, a horizontal rotation mechanism of a portable device according to the present invention rotates a first casing and a second casing in a planar direction with each other in a state where the first casing and the second casing are overlapped with each other. And a closed state in which an upper surface of one of the second housings is covered with a lower surface of the other housing of the first housing and the second housing, and an upper surface of the one housing. A horizontal rotation mechanism configured to form an open state to be exposed, the first vertical shaft provided on one of the upper surface of the one housing and the lower surface of the other housing; A second vertical shaft provided on the other surface of the upper surface of one housing and the lower surface of the other housing, and one end portion of the first vertical shaft is rotatably provided and the second The other end of the vertical shaft is rotatably provided, and the first housing and the second housing are rotatably connected. And the first casing and the second casing are rotatable about either the first vertical axis or the second vertical axis when in the closed state or the opened state. When the closed state or the state other than the open state is established, the first casing and the second casing rotate about the other axis of the first vertical axis and the second vertical axis. A rotation restricting means for preventing at least the closed first casing and the second casing from rotating relative to each other about the first vertical axis to be in a first opened state, The first housing and the second housing in the formed state are configured to rotate to each other about the second vertical axis to be in the second opened state.

  According to the present invention, for example, the rotating member is provided on the first vertical shaft provided in the first housing and the second vertical shaft provided in the second housing so that both end portions thereof can rotate, and the rotation The first casing and the second casing are rotatably connected to each other by the member, and the first casing and the second casing at least in the closed state rotate with respect to each other about the first vertical axis to be in the first opened state And the closed first housing and the second housing rotate relative to each other about the second vertical axis to be in the second open state, so that the first housing and the second housing are connected to each other. It can be positioned in the open state and has excellent versatility.

  In the horizontal rotation mechanism of the portable device according to the present invention, the first casing and the second casing in the closed state are arranged with respect to each other about one of the first vertical axis and the second vertical axis. The first casing and the second casing are configured to rotate to each other about the other one of the first vertical axis and the second vertical axis to be in a third open state after rotating. It is preferable to provide a lock means for locking each of the four states of the closed state or the first open state to the third open state. Moreover, in the horizontal rotation mechanism of the portable device according to the present invention, the lock means includes a spherical first lock recess provided on one of the one surface and the rotation member, and the first lock recess. The first ball that is engaged in the closed state, the first open state, or the third open state, provided on the other of the one surface and the rotating member, the other surface, and the A spherical second lock recess provided in one of the rotating members, and the second lock recess engages with the second lock recess in the closed state, the second open state, or the third open state, and the other And a second ball provided on the other side of the rotating member.

  In the horizontal rotation mechanism of the portable device according to the present invention, the rotation restricting means includes a first cam provided on one of the first vertical axis and the second vertical axis, and the first vertical axis. And a second cam provided on the other of the second vertical shafts and the rotating member, and the first housing and the second housing are moved from the closed state or the opened state to the first When rotating around one of the first vertical axis and the second vertical axis as an axis, it engages with the first cam or the second cam provided on the other axis different from this one axis. The first casing and the second casing that are rotated around the one axis are prevented from being rotated while the first casing and the second casing are prevented from rotating around the other axis. When it is in the formed state or the opened state, the above-mentioned provided on the other shaft 1 preferably comprises a stopper member in a state in which the engagement may be released between the cam or the second cam. In the horizontal rotation mechanism of the portable device according to the present invention, the first cam is formed in a circular shape having a first cam recess in a part of the peripheral surface, and the second cam is in a part of the peripheral surface. The stopper member is formed in a circular shape having a second cam recess, and the other end of the stopper member is close to the second cam recess when the one end is inserted into the first cam recess and engaged. Is inserted into the second cam recess and engaged with one end of the rotary member so as to be close to the second cam recess, and when the stopper member is in the closed state or the open state, One end is engaged with the first cam recess or the other end is engaged with the second cam recess, and the end of the stopper member is engaged with the first cam recess or the second When the cam recess rotates, the first cam recess or the second cam With an end portion of the stopper member from the recess is disengaged, it is preferable that the stopper member as the rest of the end portion of the stopper member is engaged with the second cam recesses or the first cam recess moves.

As described above, according to the horizontal rotation mechanism of the portable device according to the present invention, the first housing and the second housing in the first position in the closed state rotate relative to each other about the first vertical axis. Since the first housing and the second housing in the closed state are rotated with respect to each other about the second vertical axis to be in the second opened state, the first housing and the second housing Can be positioned in a plurality of open states, and is excellent in versatility.

Hereinafter, a horizontal rotation mechanism of a portable device according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG.1 and FIG.2 is a figure which shows an example of the portable apparatus provided with the horizontal rotation mechanism based on this invention. 3-5 is a figure which shows an example of the horizontal rotation mechanism based on this invention. As shown in FIGS. 1, 2, and 4, the portable device according to the present invention rotates the first casing 11 and the second casing 12 in the planar direction with each other in a state where the first casing 11 and the second casing 12 overlap each other. One of the casing 11 and the second casing 12, for example, the upper surface of the first casing 11 is placed on the other casing of the first casing 11 and the second casing 12, for example, the second casing 12. A closed state covered with the lower surface (see FIGS. 1A and 4A) and an open state where the upper surface of the first housing 11 is exposed (FIGS. 1B to 1D and FIG. 4). b) to FIG. 4D)). In addition, the 1st housing | casing 11 and the 2nd housing | casing 12 are described with the imaginary line in FIG.

The horizontal rotation mechanism of the portable device according to the present invention rotates the first casing 11 and the second casing 12 in the planar direction with the first casing 11 and the second casing 12 being overlapped with each other, so that the first casing 11 and the second casing 11 are rotated. A closed state in which the upper surface of one of the housings 12 is covered with the lower surface of one of the first housing 11 and the second housing 12, and the upper surface of the one housing is covered. A horizontal rotation mechanism 1 configured to form an open state to be exposed, and a first vertical axis (for example, provided on one of the upper surface of the one housing and the lower surface of the other housing) A main shaft 4), a second vertical axis (for example, LCD shaft 5) provided on one of the upper surface of the one housing and the lower surface of the other housing, and one end of the first vertical shaft. And the other end is rotatable about the second vertical axis. A rotating member 6 rotatably connected to the first casing 11 and the second casing 12, and the first casing 11 and the second casing when in the closed state or the opened state. When the casing 12 is rotatable about one of the first vertical axis and the second vertical axis, and when the casing 12 is in the closed state or a state other than the open state, the first casing 11 and A rotation restricting means for preventing the second casing 12 from rotating about the other of the first vertical axis and the second vertical axis, and at least the first state in the closed state; The casing 11 and the second casing 12 rotate relative to each other about the first vertical axis to be in a first open state, and the first casing 11 and the second casing 12 in the closed state are Rotating each other about the second vertical axis to be in the second open state To.

  Examples of the portable device include, but are not limited to, a pocket computer, a portable game machine, a mobile phone, a notebook personal computer, a portable information terminal such as Zaurus (trademark), a calculator, and the like. Is preferred. In the present invention, the portable device includes an ashtray, a case lid, and the like. That is, there is no particular limitation as long as the two casings are rotated with respect to each other. Moreover, although this Embodiment demonstrates the mobile telephone 10 as a portable apparatus, it is not limited to this.

  The 1st housing | casing 11 comprises the transmission part of the mobile telephone 10, and has a keyboard part (not shown), a microphone part (not shown), etc. on the upper surface, for example. The first housing 11 is formed in an elongated and substantially rectangular shape. The first casing 11 is preferably composed of, for example, a first rear casing 11a and a first front casing 11b that are divided into two in the thickness direction. The first rear housing 11a and the first front housing 11b are assembled with the first housing 11 with screws 19a, for example (see FIG. 2). A key base member mounting recess 13 for mounting the key base member 2 is provided on the upper surface of the first front housing 11b, that is, substantially at the center of the left end of the upper surface of the first housing 11. The key base member 2 is attached to the key base member mounting recess 13 so that the key base member 2 can be detachably fixed to the first front housing 11b from the lower surface side of the first front housing 11b using, for example, screws 17 or the like. It has become.

  The second casing 12 also constitutes the receiver of the mobile phone 10 and has, for example, a display unit 12d such as an LCD, a speaker unit (not shown), a camera unit (not shown), etc. on the upper surface. is doing. The second housing 12 is formed in a substantially rectangular shape that is substantially the same as the first housing 11. The second casing 12 is preferably composed of, for example, a second rear casing 12a and a second front casing 12b that are divided into two in the thickness direction. The second rear housing 12a and the second front housing 12b are assembled with, for example, screws 19b and the second housing 12 is assembled (see FIG. 2). As shown in FIGS. 2 and 7, an LCD member mounting recess 14 for mounting the LCD base member 3 is provided at a substantially central portion of the lower surface of the second rear housing 12 a (that is, the lower surface of the second housing 12). The LCD base member 3 is attached to the LCD member mounting recess 14 and the LCD base member 3 can be attached to and detached from the second rear housing 12a from the upper surface side of the second rear housing 12a using, for example, a screw 18 or the like. It can be fixed to. In addition, the rotating member 6 is housed in the left end portion from the substantially central portion of the lower surface of the second rear housing 12a, and when the first housing 11 and the second housing 12 rotate relative to each other, An accommodation recess 15 that allows movement is provided.

  For example, the first housing 11 and the second housing 12 are placed on the first housing 11 from the closed state in which the first housing 11 and the second housing 12 are overlapped with each other as shown in FIGS. A mobile phone 10 is configured by connecting a first housing 11 and a second housing 12 via a horizontal rotation mechanism 1 so that they can rotate in the horizontal direction. That is, in the mobile phone 10, the second casing 12 is superimposed on the upper surface of the first casing 11 to close the keyboard portion and the like, and the second casing 12 rotates with respect to the first casing 11. The keyboard and other parts can be exposed.

  As shown in FIGS. 2 to 6, the horizontal rotation mechanism 1 of the portable device according to the present invention includes one of the upper surface of the first housing 11 and the lower surface of the second housing 12, for example, the first housing. The first vertical axis provided on the upper surface of the body 11 and the other surface of the upper surface of the first housing 11 and the lower surface of the second housing 12, for example, the first surface provided on the lower surface of the second housing 12. One end portion is rotatably provided on the two vertical shafts and the first vertical shaft, and the other end portion is rotatably provided on the second vertical shaft to rotate the first housing 11 and the second housing 12. The rotating member 6 that can be connected to the first casing 11 and the second casing 12 can be rotated about either the first vertical axis or the second vertical axis when in the closed state or the open state. And when the closed state or the state other than the open state, the first casing 11 and the second casing 12 are either the first vertical axis or the second vertical axis. And a rotation restricting means 7 for preventing the first casing 11 and the second casing 12 in the closed state from rotating with respect to each other about the first vertical axis. In addition, the first housing 11 and the second housing 12 in the closed state are configured to rotate to each other about the second vertical axis to be in the second opened state. The horizontal rotation mechanism 1 of the portable device according to the present invention preferably includes a lock unit 8 that locks the first housing 11 and the second housing 12 in the closed state or the opened state.

  The first vertical axis is for rotatably supporting one end portion of the rotating member 6. For example, the main shaft 4 is used. The main shaft 4 is attached to the key base member 2 fixed to the first housing 11. As shown in FIGS. 2 to 5 and 8, the key base member 2 has, for example, a base portion 2 a formed in a substantially rectangular flat plate shape. In the vicinity of the four corners of the base 2a, through holes 2c through which screws 17 for attaching the key base member 2 are inserted are respectively provided. The upper end portion of the base portion 2a is formed as a stopper portion 21 that is folded back to the upper surface side and restricts the rotation range of the movable member to approximately 0 ° to 180 °. The bent portion 2b and the base portion 2a constituting the stopper portion 21 are provided with through holes 2d through which screws 27 are inserted, for example. A spacer 25 is provided between the bent portion 2b and the base portion 2a, and is fixed to the first front housing 11b with a screw 27, for example. Thus, by providing the spacer 25 between the bent portion 2b and the base portion 2a, the stopper portion 21 composed of the bent portion 2b and the base portion 2a can be firmly fixed to the first front housing 11b. . A substantially central portion of the base portion 2a protrudes upward in a circular flat plate shape, and the protruding surface is formed as a first sliding portion 22 in which the rotating member 6 is slidably contacted. A main shaft attachment hole 23 for attaching the main shaft 4 is coaxially provided at the center of the first sliding portion 22. The main shaft mounting hole 23 is formed in a substantially oval shape in which circular opposite side portions are cut out in parallel.

  As shown in FIG. 11, the main shaft 4 is formed, for example, by providing a three-stage annular portion on the same surface on one surface of a disc-shaped base portion 4a. These annular parts are formed as a first annular part 4b, a second annular part 4c, and a third annular part 4d sequentially from the tip part. The first annular portion 4b is a portion that is, for example, press-fitted and attached to the main shaft attachment hole 23, and has substantially the same shape as the main shaft attachment hole 23, that is, a substantially long shape in which circular opposite side portions are cut out in parallel. It is formed in a circular shape. The second annular portion 4c is formed with a larger diameter than the first annular portion 4b, and the rotating member 6 is rotatably supported by the second annular portion 4c. The third annular portion 4d is formed with a larger diameter than the second annular portion 4c.

  The second vertical axis is for rotatably supporting the other end of the rotating member 6, and for example, the LCD shaft 5 or the like is used. The LCD shaft 5 is attached to the LCD base member 3 fixed to the lower surface of the second casing. As shown in FIGS. 2 to 5 and 9, the LCD base member 3 is formed in a substantially rectangular flat plate shape, for example. It is preferable that the thickness of the LCD base member 3 is, for example, less than half the diameter of the second ball 84 described later. In the vicinity of the four corners of the LCD base member 3, through holes 3c through which screws 18 for attaching the LCD base member 3 are inserted are provided. In addition, a regulating recess 31 is provided in the vicinity of the side portion of the lower left corner of the LCD base member 3. The substantially central portion of the LCD base member 3 projects downward in a substantially circular flat plate shape, and the projecting surface below this is formed as a second sliding portion 32 in which the other end portion of the rotating member 6 is slidably contacted. The opposite side of the second sliding portion 32 is formed as a shaft accommodating recess 33. A circular LCD shaft mounting hole 34 for coaxially mounting the LCD shaft 5 is provided coaxially in the center of the second sliding portion 32.

  The LCD shaft 5 is sandwiched between the shaft housing recess 33 and the second housing 12 and is rotatably housed in the shaft housing recess 33. The LCD shaft 5 is formed, for example, by providing a two-stage cylindrical portion coaxially with one surface of a disc-shaped base portion 5a. These cylindrical portions are formed as a first cylindrical portion 5b and a second cylindrical portion 5c from the tip portion. The diameter of the base portion 5 a is smaller than that of the second sliding portion 32 and larger than that of the LCD shaft mounting hole 34. The second cylindrical portion 5 c is formed with a diameter slightly smaller than the diameter of the LCD shaft mounting hole 34. The first cylindrical part 5b is formed with a diameter smaller than the diameter of the second cylindrical part 5c. The LCD shaft 5 is housed and mounted in the shaft housing recess 33 with the first columnar portion 5b passing through the LCD shaft mounting hole 34 and the second columnar portion 5c inserted through the LCD shaft mounting hole 34. . That is, the LCD shaft 5 is housed in the shaft housing recess 33 so that the first cylindrical portion 5b protrudes from the second sliding portion 32 and the outer periphery of the second cylindrical portion 5c is in contact with the LCD shaft mounting hole 34 and is rotatable. Has been attached.

  As shown in FIGS. 2 to 5 and 10, the rotating member 6 is formed in a substantially oval plate shape in which both end portions are formed in a substantially semicircular shape. The thickness of the rotating member 6 is preferably formed with a dimension that is half or less than the diameter of the first ball 82 described later. The peripheral portion of the rotating member 6 is bent upward by approximately 90 ° as a whole to form a wall portion 6a. A rotation restricting protrusion 61 that protrudes upward is provided on a part of the upper end of the wall 6a. The rotation restricting protrusion 61 is for restricting the rotation range of the LCD base member 3 with respect to the LCD shaft 5 to approximately 0 ° to 90 °. That is, in the closed state or the first open state, as shown in FIGS. 5A, 5C, and 5D, a part of the LCD base member 3 comes into contact with the rotation restricting protrusion 61 and the LCD base When the member 3 is prevented from rotating counterclockwise with respect to the LCD shaft 5, and when the LCD base member 3 rotates approximately 90 ° clockwise with respect to the LCD shaft 5, the restricting recess 31 of the LCD base member 3 is formed. The rotation restricting projection 61 abuts and the rotation range of the LCD base member 3 relative to the LCD shaft 5, that is, the rotation range in which the second casing 12 rotates around the LCD shaft 5 with respect to the first casing 11 is 0. It is regulated within a range of ° to 90 °.

  The rotating member 6 is formed with such a length that one end is positioned at a position facing the first sliding portion 22 and the other end is positioned at a position facing the second sliding portion 32. . An oblong guide hole 62 extending in the longitudinal direction is provided at a substantially central portion of the rotating member 6. A rotation hole 63 is coaxially provided at one end of the rotation member 6. The rotation hole 63 is formed with a diameter slightly larger than the diameter of the second annular portion 4c, for example. The first annular portion 4b of the main shaft 4 passes through the rotation hole 63 of the rotation member 6 and is attached to the main shaft attachment hole 23 of the key base member 2, and the rotation of the rotation member 6 on the outer periphery of the second cylindrical portion 5c. The main shaft 4 is attached to the key base member 2 via the rotating member 6 so that the hole 63 is positioned. Accordingly, the rotating member 6 is configured to be able to rotate in a range of approximately 0 ° to 180 ° in which the wall portion 6a contacts the stopper portion 21 with the main shaft 4 as an axis. That is, the rotation range in which the second housing 12 rotates with respect to the first housing 11 about the main shaft 4 is regulated to a range of approximately 0 ° to 180 °.

  A substantially central portion of the other end portion of the rotating member 6 protrudes upward in a circular flat plate shape, and the protruding surface is formed as a third sliding portion 65 facing the second sliding portion 32 of the LCD member. The diameter of the third sliding part 65 is preferably formed to be slightly smaller than the diameter of the second sliding part 32. A mounting hole 66 is coaxially provided at the center of the third sliding portion 65. The mounting hole 66 is formed with a diameter that is substantially the same as the diameter of the first cylindrical portion 5 b of the LCD shaft 5. The LCD shaft 5 is attached to the other end portion of the rotating member 6 by press-fitting the first cylindrical portion 5 b protruding from the second sliding portion 32 into the attachment hole 66. That is, the rotating member 6 is attached to the second housing 12 so as to be rotatable about the LCD shaft 5. As a result, the first housing 11 and the second housing 12 can rotate with respect to each other about the main shaft 4 and the LCD shaft 5 via the rotating member 6.

  That is, the state in which the upper surface of the first housing 11 is covered with the second housing 12 is a closed state (see FIGS. 1A and 4A). The first opened state is a state in which the first casing 11 and the second casing 12 in the closed state rotate 180 ° with respect to the main shaft 4 and the keyboard portion and the like on the upper surface of the first casing 11 are exposed. Yes (see FIG. 1 (c) and FIG. 4 (c)). Further, the closed state of the first casing 11 and the second casing 12 is rotated by 90 ° with respect to the LCD shaft 5 and the keyboard portion on the upper surface of the first casing 11 is exposed in the second opened state. (See FIGS. 1B and 4B.) Further, after the first casing 11 and the second casing 12 in the closed state rotate around one of the main shaft 4 and the LCD shaft 5, the other of the main shaft 4 and the LCD shaft 5 is rotated. The state rotated about the shaft is the third open state (see FIGS. 1D and 4D). Specifically, the first casing 11 and the second casing 12 in the closed state are first rotated by 180 ° about the main shaft 4 to be in the first opened state, and then the LCD in the first opened state is displayed. A state in which the first housing 11 and the second housing 12 are rotated by 90 ° with respect to the shaft 5 is a third open state. The first casing 11 and the second casing 12 in the closed state are first rotated by 90 ° with respect to the LCD shaft 5 to be in the second opened state, and then the first casing in the second opened state. 11 and the second housing 12 are rotated by 180 ° about the main shaft 4 as a third open state.

  When the rotation restricting means 7 is in a closed state or an open state, the first housing 11 and the second housing 12 can rotate about either the main shaft 4 or the LCD shaft 5 as an axis. When the first housing 11 and the second housing 12 are rotated from the open state or the open state and are in a state other than the closed state or the open state, the first housing 11 and the second housing 12 are arranged around the shaft that does not contribute to the rotation. 2 The case 12 is prevented from rotating. The rotation restricting means 7 includes, for example, a first cam, a second cam, and a stopper member 71 that engages with the first cam or the second cam, as shown in FIGS.

  The first cam is not particularly limited. For example, it is preferable to use the base portion 4 a of the main shaft 4 as the first cam 72. The two opposing portions of the peripheral edge of the first cam 72 (the base portion 4a of the main shaft 4) that are located on a straight line parallel to the width direction of the first housing 11 are recessed in a curved shape. First cam recesses 73 are respectively provided. The second cam is not particularly limited, and for example, it is preferable to use the second sliding portion 32 of the LCD base member 3 as the second cam 74. Second cam recesses 75 that are recessed in a curved shape are provided at two locations on the peripheral edge of the second cam 74 (second sliding portion 32). One of the second cam recesses 75 is provided at the peripheral edge on the main shaft 4 side in the closed state and is formed as a second cam closing recess 75a, and the other is upward from the second cam closing recess 75a. It is formed as a second cam opening recess 75b formed at a position spaced by 90 ° in the circumferential direction.

  The stopper member 71 is provided movably on the rotating member 6, for example. As shown in FIGS. 3 to 6 and 12, the stopper member 71 is formed, for example, in a substantially U-shape obtained by bending both side portions 71b of a base 71a having a substantially elongated rectangular flat plate shape by approximately 90 °. It is preferable that the length between the inner surfaces of the both side portions 71 b is longer than the width of the guide hole 62. Two attachment holes 71c are provided in the base portion 71a of the stopper member 71 side by side in the longitudinal direction thereof. Stopper pins 76 are respectively attached to the attachment holes 71c. FIG. 6 shows the relationship between the stopper member, the first cam recess of the first cam, and the second cam recess of the second cam in an easy-to-understand manner, and other members are omitted.

  As shown in FIGS. 2 and 6, the stopper pin 76 includes a cylindrical sliding portion 76a, a stopper piece 76b coaxially provided at one end of the sliding portion 76a, and a sliding portion 76a. The insertion portion 76c is provided coaxially at the end. The sliding portion 76 a is preferably formed with a diameter slightly shorter than the width of the guide hole 62. For example, the insertion portion 76c is formed with a diameter substantially the same as the diameter of the attachment hole 71c so as to be press-fitted into the attachment hole 71c of the stopper member 71 and attached. The stopper piece 76 b is formed with a dimension longer than the width of the guide hole 62. A part of the stopper piece 76b is provided with a cutout portion 76d cut out along a tangential direction in contact with the peripheral surface of the sliding portion 76a. The stopper pins 76 are inserted into the guide holes 62 from the lower surface of the rotating member 6 with the notches 76d of the stopper pieces 76b in contact with each other, and the insertion portions 76c of the stopper pins 76 are inserted into the mounting holes 71c of the stopper member 71. By attaching the stopper member 71, the stopper member 71 moves within a range in which the sliding portion 76 a of the stopper pin 76 contacts the guide hole 62 and the sliding portion 76 a can move through the guide hole 62.

  At both ends of the base portion 71 a of the stopper member 71, a substantially semi-circular engaging convex portion that engages with the first cam concave portion 73 and the second cam concave portion 75 (the first cam concave portion side is the first engaging convex portion 77 and The second cam concave portion side is referred to as a second engagement convex portion 78). The length of the base portion 71a of the stopper member 71 is such that when the first engaging convex portion 77 enters and engages with the first cam concave portion 73, the second engaging convex portion 78 is close to the second cam concave portion 75. When the second engagement convex part 78 enters and engages with the second cam concave part 75, the first engagement convex part 77 is formed close to the first cam concave part 73 and not engaged. Preferably it is.

  Accordingly, since the both end portions of the stopper member 71 are opposed to the first cam recessed portion 73 and the second cam recessed portion 75 in the closed state or the opened state, the stopper member 71 has the first cam recessed portion 73 and the second cam recessed portion. It can be engaged with any of the recesses 75. As a result, in the closed state or the open state, the first housing 11 and the second housing 12 can rotate around either the main shaft 4 or the LCD shaft 5, for example, the main shaft 4. . Further, when the first housing 11 and the second housing 12 are rotated around one shaft, for example, the main shaft 4 from the closed state or the open state and are in a state other than the closed state or the open state, for example, the first case When the first engaging convex portion 77 of the stopper member 71 is engaged with the cam concave portion 73, the rotating member 6 rotates around the main shaft 4, and the first engaging convex portion 77 moves from the first cam concave portion 73. The second engagement convex part 78 enters the second cam concave part 75 and engages with the first housing 11 and the second shaft about the LCD shaft 5 as the other shaft. The rotation of the housing 12 is prevented.

  As shown in FIG. 3, the lock unit 8 includes the first housing 11 and the second housing 12 in the closed state and the four states of the first open state to the third open state (that is, the first position to the first open state). Each of the four positions is held in a locked state. The locking means 8 is not particularly limited, and for example, a spherical surface provided on the key base member 2 attached to either the upper surface of the first housing 11 or the rotating member 6, for example, the upper surface of the first housing 11. The first lock recess 81 is engaged with the first lock recess 81 in the closed state, the first open state, or the third open state, and either the upper surface of the first housing 11 or the rotating member 6 is engaged. For example, the first ball 82 provided on the rotating member 6, the lower surface of the second housing 12, and one of the rotating members 6, for example, the spherical second locking recess 83 provided on the rotating member 6, and the second It engages with the lock recess 83 in the closed state, the second open state, or the third open state, and is attached to either the lower surface of the second housing 12 or the rotating member 6, for example, the lower surface of the second housing 12. Second ball 8 provided on LCD base member 3 And it is configured to include and.

  The first lock recesses 81 are, for example, two places at intervals of 180 ° in the vicinity of the peripheral edge of the upper surface of the first sliding portion 22 of the key base member 2, and in the height direction (longitudinal direction) of the first housing 11. It is provided at two locations located on a straight line parallel to the surface. These first lock recesses 81 are each formed in a spherical shape, for example, a spherical shape having an area smaller than that of a hemisphere, that is, a spherical shape in which the arc of the cross section is a subarc. The first ball 82 is preferably formed with a diameter that is the same as or slightly smaller than the diameter of the first lock recess 81. The first ball 82 is provided so as to be able to roll at two locations of the rotating member 6 facing the two first lock recesses 81 in the closed state. That is, ball receiving holes 85 are provided at two locations of the rotating member 6, respectively. These ball receiving holes 85 are preferably formed with a diameter slightly larger than the diameter of the first ball 82. A first washer 86 for urging the first ball 82 toward the key base member 2 is provided between the rotating member 6 and the base portion of the main shaft 4.

  The first washer 86 is a kind of urging member that urges the first ball 82 toward the key base member 2. The first washer 86 is formed in a circular shape having a diameter substantially the same as the diameter of the base portion 4 a of the main shaft 4. Similar to the base portion 4a of the main shaft 4, two recess portions 86a deeper than the first cam recess portion 73 are provided at 180 ° intervals on the peripheral edge portion of the first washer 86. Further, a mounting hole 86b for being mounted around the axis of the second annular portion 4c of the main shaft 4 is provided coaxially in the center portion of the first washer 86. The diameter of the mounting hole 86b is preferably formed to be slightly larger than the diameter of the second annular portion 4c. In addition, an arc-shaped deformation hole 86c is provided coaxially between the recesses 86a and 86a of the first washer 86 and inside the portion where the first ball 82 contacts.

  Thus, for example, in the closed state, the first open state, or the third open state, the two first balls 82 have entered the first lock recess 81, so that the first casing 11 and the second casing The body 12 is held in a locked state. Further, when the main shaft 4 is rotated about the main shaft 4 from the closed state or the open state, the first ball 82 is detached from the first lock recess 81 and slides or rolls on the first sliding portion 22 of the key base member 2. In the open state or the closed state, the first lock recess 81 is entered, so that the first casing 11 and the second casing 12 are held in a locked state. As described above, when the first ball 82 is detached from the first lock recess 81 and slides or rolls on the first sliding portion 22 of the key base member 2, the first washer 86 is provided with the deformation hole 86 c. Therefore, the first washer 86 is partially deformed without being deformed as a whole, and the durability of the first washer 86 is improved.

  The second lock recesses 83 are, for example, four locations at 90 ° intervals in the vicinity of the peripheral edge of the upper surface of the third sliding portion 65 of the rotating member 6, and with respect to the height direction (longitudinal direction) of the second housing. It is provided in a total of four places, two places on a parallel straight line and two places on a straight line parallel to the width direction. These second lock recesses 83 are each formed in a spherical shape, for example, a spherical shape having an area smaller than that of the hemisphere, that is, a spherical shape in which the arc of the cross section is a subarc. The second ball 84 is preferably formed with a diameter that is the same as or slightly smaller than the diameter of the second lock recess 83. The second ball 84 is provided so as to be able to roll at two places on the second sliding portion 32 of the LCD base member 3 facing the two second lock recesses 83 in the closed state. That is, ball receiving holes 87 are provided at two locations of the second sliding portion 32, respectively. These ball receiving holes 87 are preferably formed with a diameter slightly larger than the diameter of the second ball 84. Between the second sliding portion 32 and the base portion 5a of the LCD shaft 5, a second washer 88 for urging the second ball 84 toward the third sliding portion 65 of the rotating member 6 is provided.

  The second washer 88 is a kind of urging member that urges the second ball 84 toward the rotating member 6. The second washer 88 is formed in a circular shape having a diameter substantially the same as the diameter of the shaft housing recess 33. In the periphery of the second washer 88, as in the shaft receiving recess 33, recesses 88a deeper than the second cam recess 75 are provided at three positions at 90 ° intervals. Further, a mounting hole 88b for being mounted around the axis of the second cylindrical portion 5c of the LCD shaft 5 is provided coaxially in the central portion of the second washer 88. The diameter of the mounting hole 88b is preferably formed to be slightly larger than the diameter of the second cylindrical portion 5c. Further, an arc-shaped deformation hole 88c is provided coaxially between the recesses 88a and 88a of the second washer 88 and inside the portion where the second ball 84 contacts.

  Accordingly, for example, in the closed state, the second open state, or the third open state, the two second balls 84 have entered the second lock recess 83, and therefore, the first casing 11 and the second casing The body 12 is held in a locked state. Further, when the LCD shaft 5 is rotated from the closed state or the open state, the second ball 84 comes off the second lock recess 83 and slides or rolls on the third sliding portion 65 of the rotating member 6. When the open state or the closed state is entered, the second lock recess 83 is entered, so that the first housing 11 and the second housing 12 are held in a locked state. Thus, when the second ball 84 is released from the second lock recess 83 and slides or rolls on the third sliding portion 65 of the rotating member 6, the second washer 88 is provided with the deformation hole 88c. Therefore, since the second washer 88 is partially deformed without being deformed as a whole, the durability of the second washer 88 is improved.

  Next, the operation of the mobile phone 10 and the horizontal rotation mechanism 1 according to the present invention will be described.

  In the closed state in which the mobile phone 10 is not used, as shown in FIGS. 1A and 4A, the first housing 11 and the second housing 12 overlap each other. At this time, the first ball 82 is biased to the first lock recess 81 by the biasing force of the first washer 86, and the second ball 84 is biased to the second lock recess 83 by the biasing force of the second washer 88. Therefore, the first housing 11 and the second housing 12 are held in the closed state and locked. In order to maintain this closed state more reliably, another lock mechanism may be provided.

  In this closed state, for example, when the first engaging convex portion 77 of the stopper member 71 enters and engages with the first cam concave portion 73, the first housing 11 and the LCD shaft 5 are used as axes. The second housing 12 is rotatable. At this time, since the second engaging convex portion 78 of the stopper member 71 faces the second cam concave portion 75, the first engaging convex portion 77 of the stopper member 71 can be detached from the first cam concave portion 73. Therefore, the first housing 11 and the second housing 12 can be rotated about the main shaft 4 as an axis. Therefore, when the first housing 11 and the second housing 12 are in a closed state, the first housing 11 and the second housing 12 can rotate around either one of the LCD shaft 5 and the main shaft 4. Even in the open state, the first engaging convex portion 77 of the stopper member 71 faces the first cam concave portion 73 and the second engaging convex portion 78 faces the second cam concave portion 75. The first housing 11 and the second housing 12 can be rotated about either the LCD shaft 5 or the main shaft 4 as an axis.

  In order to perform an operation or the like with the mobile phone 10, for example, a force is applied in the clockwise horizontal direction so that the second housing 12 rotates about the main shaft 4 with the first housing 11 fixed. . Then, the second housing 12 rotates about the main shaft 4 with respect to the first housing 11, and the first ball 82 comes off the first lock recess 81 and slides on the first sliding portion 22. Or roll. Further, when the rotating member 6 also rotates together with the stopper member 71 around the main shaft 4 and the first engaging convex portion 77 of the stopper member 71 enters and engages with the first cam concave portion 73 (see FIG. 6 (a)), the first engaging convex portion 77 is disengaged from the first cam concave portion 73, and the stopper member 71 is moved from the first engaging convex portion 77 toward the second engaging convex portion 78. The second engaging convex portion 78 enters and engages with the second cam concave portion 75 (see FIG. 6B), and the first engaging convex portion 77 remains in the main shaft while this engagement is performed. 4 is moved in a state of sliding or close. The state in which the second housing 12 is rotated by approximately 90 ° with respect to the first housing 11 is a neutral state, and the horizontal rotation mechanism 1 at this time is as shown in FIG.

  When the second housing 12 rotates about 180 ° with respect to the first housing 11, the wall portion 6a of the rotating member 6 comes into contact with the stopper portion 21 of the key base member 2 to stop its rotation and the first ball 82 enters the first lock recess 81 and is held in the locked state. This state is the first open state as shown in FIGS. 1 (c) and 4 (c). As a result, the keyboard portion provided on the upper surface of the first housing 11 is exposed, so that the keyboard can be operated, and the operation can be performed using the mobile phone 10. In addition, in order to maintain this open state more reliably, you may make it provide another locking mechanism.

  Further, for example, a force is applied in the clockwise horizontal direction so that the second housing 12 is rotated about the LCD shaft 5 while the first housing 11 is fixed from the closed state. Then, the second housing 12 rotates around the LCD shaft 5 with respect to the first housing 11, and the second ball 84 comes off the second lock recess 83 and slides on the third sliding portion 65. Or roll. Further, when the rotating member 6 also rotates together with the stopper member 71 around the LCD shaft 5 and the second engaging convex portion 78 of the stopper member 71 enters and engages with the second cam concave portion 75 (FIG. 6 (b)), the second engaging convex part 78 is detached from the second cam concave part 75, and the stopper member 71 is moved from the second engaging convex part 78 toward the first engaging convex part 77. The first engagement convex portion 77 enters and engages with the first cam concave portion 73 (see FIG. 6A), and the second engagement convex portion 78 remains in the second state with this engagement being performed. It moves in a state of sliding or approaching the peripheral surface of the sliding portion 32. When the second housing 12 rotates approximately 90 ° with respect to the first housing 11, the rotation restricting protrusion 61 comes into contact with the restricting recess 31 of the LCD base member 3 and stops rotating, and the second ball 84 is moved. It enters the second lock recess 83 and is held in the locked state. This state is the second open state as shown in FIGS. 1 (b) and 4 (b). As a result, the keyboard portion provided on the upper surface of the first housing 11 is exposed, so that the keyboard can be operated, and the operation can be performed using the mobile phone 10. In addition, in order to maintain this open state more reliably, you may make it provide another locking mechanism.

  Further, after the first casing 11 is rotated with the main shaft 4 as the axis relative to the second casing 12 from the closed state to the first opened state, for example, the second casing 11 is fixed with the first casing 11 fixed. A force is applied in the clockwise horizontal direction so that the housing 12 rotates about the LCD shaft 5. Then, the second housing 12 rotates around the LCD shaft 5 with respect to the first housing 11, and the second ball 84 comes off the second lock recess 83 and slides on the third sliding portion 65. Or roll. When the second housing 12 rotates approximately 90 ° with respect to the first housing 11, the rotation restricting protrusion 61 comes into contact with the restricting recess 31 of the LCD base member 3 and stops rotating, and the second ball 84 is moved. It enters the second lock recess 83 and is held in the locked state. This state is the third open state as shown in FIGS. 1 (d) and 4 (d). As a result, the keyboard portion provided on the upper surface of the first housing 11 is exposed, so that the keyboard can be operated, and the operation can be performed using the mobile phone 10. In addition, in order to maintain this open state more reliably, you may make it provide another locking mechanism. Further, after the first casing 11 and the second casing 12 are rotated with respect to the LCD shaft 5 from the closed state to the second state, the first casing 11 and the second casing 12 are rotated about the main shaft 4. And may be rotated to each other to be in the third open state.

Thus, since the open position of the 2nd housing | casing 12 with respect to the 1st housing | casing 11 can be positioned in three positions, it becomes the thing excellent in versatility. As a result, Oite the cellular phone 10, when using a function using a communication line such as the Internet or a game function, in accordance with sequences and the like of a key provided on the upper surface of the first housing 11 into three open state It can be arranged so that it can be operated, and functions can be fully utilized.

  To return the second housing 12 to the original position (closed state) with respect to the first housing 11 from the opened state, for example, in the first opened state, for example, a state in which the first housing 11 is fixed Thus, a force is applied to the second housing 12 so as to rotate counterclockwise about the main shaft 4 as an axis. Then, the second housing 12 rotates about the main shaft 4 with respect to the first housing 11, and the second ball 84 comes off the second lock recess 83 and slides on the first sliding portion 22. Or roll. Further, when the rotating member 6 also rotates together with the stopper member 71 around the main shaft 4 and the first engaging convex portion 77 of the stopper member 71 enters the first cam concave portion 73 and is engaged, The first engaging convex portion 77 is disengaged from the first cam concave portion 73, and the stopper member 71 is moved from the first engaging convex portion 77 toward the second engaging convex portion 78, so that the second engaging convex portion 78 is 2 The cam recess 75 enters and engages, and the first engagement protrusion 77 moves while sliding or approaching the peripheral surface of the main shaft 4 with this engagement being performed. When the second housing 12 rotates about 180 ° with respect to the first housing 11, the wall portion 6a of the rotating member 6 comes into contact with the stopper portion 21 of the key base member 2 to stop its rotation and the first ball 82 enters the first lock recess 81, and the first housing 11 and the second housing 12 are held in the closed state in the locked state.

  In the second open state, the first casing 11 and the second casing 12 are rotated counterclockwise about the LCD shaft 5. Then, the second ball 84 is released from the second lock recess 83 and slides or rolls on the third sliding portion 65. Further, when the rotating member 6 also rotates together with the stopper member 71 about the LCD shaft 5 and the second engaging convex portion 78 of the stopper member 71 enters the second cam concave portion 75 and is engaged, The second engaging convex portion 78 is disengaged from the second cam concave portion 75, and the stopper member 71 is moved from the second engaging convex portion 78 toward the first engaging convex portion 77 so that the first engaging convex portion 77 becomes the first engaging convex portion 77. 1 cam recess 73 enters and engages, and the second engagement convex part 78 moves in a state of sliding or approaching the peripheral surface of the second sliding part 32 with this engagement being performed. When the LCD base member 3 is rotated by approximately 90 °, the LCD base member 3 comes into contact with the rotation restricting protrusion 61 and stops rotating, and the second ball 84 enters the second lock recess 83 to enter the first casing 11 and the second casing. 12 is held in the locked state in the closed state.

  In the case of the third open state, the first housing 11 and the second housing 12 are rotated counterclockwise around the main shaft 4 or the LCD shaft 5 as the first open state or the second open state. . Then, the first housing 11 and the second housing 12 are locked in the closed state by rotating the first housing 11 and the second housing 12 counterclockwise around the LCD shaft 5 or the main shaft 4. Can be held in a state.

  Therefore, since the mobile phone 10 and the horizontal rotation mechanism 1 according to the present invention can be positioned in the three open states of the first open state, the second open state, and the third open state, the functions can be fully utilized. Can be used and has excellent versatility.

  Further, since the rotation restricting means 7 is provided, the opening / closing operation of the first housing 11 and the second housing 12 can be performed smoothly. That is, in the closed state or the open state, as shown in FIGS. 4 to 6, the first engagement convex portion 77 and the first cam concave portion 73 of the stopper member 71 are opposed to each other, and the second engagement convex portion is provided. Since 78 and the second cam recess 75 are opposed to each other, the first housing 11 and the second housing 12 can rotate around either the main shaft 4 or the LCD shaft 5 as an axis. When the first housing 11 and the second housing 12 rotate around the main shaft 4 or the LCD shaft 5 from this state, whether the second engagement convex portion 78 enters the second cam concave portion 75 and is engaged therewith. Alternatively, the first engagement protrusion 77 enters the first cam recess 73 and is engaged therewith. At this time, when the main shaft 4 is rotating about the axis, the first engaging convex portion 77 slides or moves close to the peripheral surface of the base portion of the main shaft 4, so the second engaging convex portion 78 is not released from the second cam recess 75 and the engagement is not released. Further, when the LCD shaft 5 is rotated about the axis, the second engaging convex portion 78 slides or moves close to the peripheral surface of the second sliding portion 32, so the first engaging convex portion 77 is not released from the first cam recess 73 and the engagement is not released. As described above, when the first casing 11 and the second casing 12 are rotating, the first casing 11 and the second casing 12 are not rotated around the shaft that does not contribute to the rotation. The opening / closing operation of the first casing 11 and the second casing 12 can be performed smoothly. As a result, the opening / closing operation can be easily performed.

  In addition, since the lock unit 8 is provided, when the first housing 11 and the second housing 12 are rotated to be in the closed state or the open state, a click feeling is generated and an operational feeling is easily felt. That is, when the first housing 11 and the second housing 12 are rotated about the main shaft 4, the first ball 82 slides or rolls on the first sliding portion 22, The first washer 86 is biased toward the first sliding portion 22 side. For this reason, when the first housing 11 and the second housing 12 are rotated about the main shaft 4 to be in a closed state or an open state, the first ball 82 enters and engages with the first lock recess 81. In addition, a click feeling is generated and a feeling of operation is easy to feel. Further, when the first housing 11 and the second housing 12 are rotating around the LCD shaft 5, the second ball 84 slides or rolls on the third sliding portion 65, and The second washer 88 is biased toward the third sliding portion 65 side. For this reason, when the first housing 11 and the second housing 12 are rotated about the LCD shaft 5 to be in the closed state or the open state, the second ball 84 enters and engages with the second lock recess 83. In addition, a click feeling is generated and a feeling of operation is easy to feel. Therefore, when the first housing 11 and the second housing 12 are rotated to be in the closed state or the open state, a click feeling is generated and the operation feeling is easily felt, so that the operation feeling is good.

As described above, the horizontal rotation mechanism of the portable device according to the present invention has at least the first housing and the second housing in the closed state rotating relative to each other about the first vertical axis to be in the first opening state. Since the closed first housing and the second housing rotate relative to each other about the second vertical axis to be in the second open state, the first housing and the second housing are in a plurality of open states. Therefore, it is suitable for use in a pocket computer or a portable game machine, among other portable devices.

It is a perspective view which shows an example of the portable apparatus provided with the horizontal rotation mechanism which concerns on this invention, (a) is a figure which shows a closed state, (b) is a figure which shows a 1st open state, (c) is a 2nd open state The figure which shows a state, (d) is a figure which shows a 3rd open state. It is a disassembled perspective view of the portable apparatus provided with the horizontal rotation mechanism which concerns on this invention of FIG.1 (c). It is a disassembled perspective view which shows the principal part of the horizontal rotation mechanism which concerns on this invention. It is a figure which shows the principal part of the horizontal rotation mechanism which concerns on this invention in FIG. It is a top view which shows the principal part of the horizontal rotation mechanism which concerns on this invention, (a) is a figure which shows a closed state, (b) is a figure which shows a 1st open state, (c) is a figure which shows a neutral state, ( (d) is a figure which shows a 2nd open state, (e) is a figure which shows a 3rd open state. It is a top view which shows an example of the rotation control means which concerns on this invention. It is a figure which shows an example of the 2nd rear housing | casing which concerns on this invention, (a) is a perspective view, (b) is a top view, (c) is a side view. It is a perspective view showing an example of the 1st base member concerning the present invention. It is a perspective view showing an example of the 2nd base member concerning the present invention. It is a perspective view which shows an example of the rotating member which concerns on this invention. It is a perspective view showing an example of the 1st shaft member concerning the present invention. It is a perspective view which shows an example of the stopper member which concerns on this invention. It is a perspective view which shows an example of the stopper pin which concerns on this invention.

1 horizontal rotation mechanism 2 key base member 3 LCD base member 4 main shaft (first vertical axis)
5 LCD shaft (second vertical axis)
6 Rotating member 7 Rotation restricting means 8 Locking means 10 Mobile phone 11 First housing 12 Second housing 71 Stopper member 72 First cam 73 First cam recess 74 Second cam 75 Second cam recess 77 First engagement convex Part 78 Second engaging convex part 81 First lock concave part 82 First ball 83 Second lock concave part 84 Second ball

Claims (5)

The first casing and the second casing are rotated in a planar direction with the first casing and the second casing being overlapped with each other, and the upper surface of one of the first casing and the second casing is placed on the first casing. A horizontal rotation mechanism configured to form a closed state that is covered with a lower surface of the other housing of the body and the second housing, and an open state that exposes an upper surface of the one housing;
  A first vertical axis provided on one of the upper surface of the one housing and the lower surface of the other housing; and the other of the upper surface of the one housing and the lower surface of the other housing A second vertical axis provided on the surface of the first vertical axis, and one end part rotatably provided on the first vertical axis and the other end part rotatably provided on the second vertical axis. And a rotating member that rotatably connects the second housing, and the first housing and the second housing are in the first vertical axis and the second vertical when in the closed state or the opened state. It is rotatable about any one of the shafts, and when in the closed state or the state other than the open state, the first housing and the second housing are the first vertical shaft and the second shaft. A rotation restricting means for preventing rotation around any one of the vertical axes;
  At least the first casing and the second casing in the closed state rotate with respect to each other about the first vertical axis to be in the first opened state, and the first casing and the second casing in the closed state 2. A horizontal rotation mechanism of a portable device, wherein two housings are configured to rotate relative to each other about the second vertical axis to be in a second open state. The first casing and the second casing in the closed state rotate with respect to one of the first vertical axis and the second vertical axis, and then the first vertical axis and the second vertical axis. The first casing and the second casing are configured to be in the closed state or the first opened state by rotating relative to each other about the other of the two vertical axes. The horizontal rotation mechanism of the portable device according to claim 1, further comprising lock means for locking in each of the four states of the third opened state. The lock means includes a spherical first lock recess provided on one of the one surface and the rotating member, and the first lock recess and the closed state, the first open state, or the third A first ball that engages in the open state and is provided on one of the one surface and the rotating member, and a spherical first surface provided on one of the other surface and the rotating member. 2 lock recesses, which engage with the second lock recesses in the closed state, the second open state, or the third open state, and are provided on either the other surface or the rotating member. The horizontal rotation mechanism of the portable device according to claim 2, further comprising a second ball. The rotation restricting means is provided on a first cam provided on one of the first vertical axis and the second vertical axis, and on the other axis of the first vertical axis and the second vertical axis. A second cam that is provided on the rotating member, and the first casing and the second casing are either in the closed state or in the opened state, and are either one of the first vertical axis and the second vertical axis. When rotating about an axis, the first housing with the other axis as an axis by engaging with the first cam or the second cam provided on the other axis different from the one axis; When the first vertical axis and the second vertical axis rotated around the one axis are in the closed state or the open state, the second casing is prevented from rotating, In a state where the engagement with the first cam or the second cam provided on the shaft can be released That is characterized in that a stopper member, the horizontal rotating mechanism of the portable device according to any one of claims 1 to 3. The first cam is formed in a circular shape having a first cam recess in a part of the peripheral surface,
  The second cam is formed in a circular shape having a second cam recess in a part of the peripheral surface,
  When the stopper member is engaged with one end portion being inserted into the first cam recess, the other end portion is close to the second cam recess and the other end portion is inserted into the second cam recess. One end is provided on the rotating member to be movable close to the second cam recess,
  In the closed state or the opened state, one end of the stopper member is engaged with the first cam recess or the other end is engaged with the second cam recess, and the end of the stopper member When the first cam recess or the second cam recess is engaged, the end of the stopper member is detached from the first cam recess or the second cam recess, and the rest of the stopper member is removed. The horizontal rotation mechanism of the portable device according to claim 4, wherein the stopper member moves so that an end of the stopper is engaged with the second cam recess or the first cam recess.

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