JP5018294B2 - Switchgear - Google Patents

Description

  The present invention relates to an opening / closing device used in various electronic devices such as a mobile phone and a personal computer.

  In recent years, as electronic devices such as mobile phones and personal computers have become smaller and lighter, so-called foldable types in which a movable housing is attached to a fixed housing so that it can be opened and closed are increasing. The opening / closing device used is also required to be easy to use and capable of various opening / closing operations.

  An electronic apparatus using such a conventional switchgear will be described with reference to FIG. 12, taking a mobile phone as an example.

  FIG. 12 is a perspective view of a conventional mobile phone. In FIG. 12, reference numeral 1 denotes a fixed housing, and an operation unit 1A on which a plurality of keys are arranged and a voice input unit 1B such as a microphone are formed on the upper surface. ing.

  Reference numeral 2 denotes a movable housing. A display unit 2A such as an LCD and an audio output unit 2B such as a speaker are formed on the front surface. The lower end of the movable housing 2 is attached to the upper end of the fixed housing 1 so as to be opened and closed. Yes.

  Reference numerals 3 and 4 denote opening / closing devices formed of a plurality of cams, springs (not shown), and the like. The pair of opening / closing devices 3 and 4 are connected by a connecting member (not shown) and a fixed housing. 1 is mounted between the movable casing 2 and the movable casing 2, and the movable casing 2 is pivotally supported with respect to the fixed casing 1 so as to be openable and closable.

  In the above configuration, when the movable casing 2 is closed with respect to the fixed casing 1, the opening and closing device 3 applies a biasing force to the movable casing 2 in the closing direction, and the movable casing 2 is held in the closed state. Has been.

  When the movable casing 2 is opened by hand from this closed state, a force in the opening direction is applied to the movable casing 2 by the opening / closing device 3, and the movable casing 2 is applied to the fixed casing 1 as shown in FIG. To a predetermined angle, for example, around 160 degrees.

  In this state, when the switching push button 5 provided on the side surface of the fixed casing 1 is operated and the movable casing 2 is further opened, the urging force in the opening direction is acted on by the opening / closing device 4 and the fixed casing 1 1 The back surface of the movable housing 2 comes into contact with and overlaps the back surface, that is, the movable housing 2 is rotated 360 degrees.

  That is, using the pair of opening and closing devices 3 and 4, the movable casing 2 is opened by the opening and closing device 3 until about 160 degrees for making a call, and then the operation unit 1A and the display unit 2A are exposed on the upper and lower surfaces. Up to this point, the movable casing 2 is opened by the opening / closing device 4.

As prior art document information related to the invention of this application, for example, Patent Document 1 is known.
JP 2002-171324 A

  However, in the above conventional opening / closing device, the pair of opening / closing devices 3 and 4 are used, and the opening / closing device 3 opens and closes up to a predetermined angle, and then the switching push button 5 is operated to open / close up to 360 degrees. Since opening and closing is performed by 4, there is a problem that the number of components is complicated and the structure is complicated, and it takes time and effort to mount and open the device.

  The present invention solves such a conventional problem, and an object thereof is to provide an opening / closing device capable of various opening / closing operations with a simple configuration.

  In order to achieve the above object, the present invention has the following configuration.

According to a first aspect of the present invention, there is provided a fixed body connected to a fixed holder and formed with a fixed gear, a movable body connected to the movable holder and formed with a movable gear, and a conversion gear meshed with the fixed gear. And a relay gear meshed with the conversion gear and the movable gear, and a lock plate on which the gears are mounted, a reinforcing lock plate supported rotatably at the approximate center of the lock plate, and the fixed holder When the movable holder is opened at a predetermined angle, the lock plate is provided with an engaging portion that comes into contact with the fixed body or a locking portion formed on the fixed holder, and the movable holder is fixed to the fixed holder. When the opening is opened at the predetermined angle, the reinforcing lock plate is provided with an engaging portion that comes into contact with the engaging portion formed on the movable body or the movable holder, and the conversion gear is formed to be movable so that the opening / closing device a configuration Are those were, when opening the movable holder at a predetermined angle with respect to the fixed holder, in that the angle of two engaging portions provided on the lock plate and the reinforcing locking plate is in contact each person and locking portion corresponding to these Since it can be held, and then the conversion gear can be moved to perform further opening and closing operations, various opening and closing operations can be performed with a simple configuration, and the movable holder can be held against the fixed holder. It has the effect that it can be made strong and reliable .

  As described above, according to the present invention, it is possible to obtain an advantageous effect that an opening / closing device capable of various opening / closing operations can be realized with a simple configuration.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

(Embodiment 1)
Using the first embodiment will be described with the present onset bright.

  FIG. 1 is a perspective view of a switchgear according to a first embodiment of the present invention, FIG. 2 is an exploded perspective view thereof, in which 11 is a fixed holder made of steel plate or insulating resin, and 12 is a movable holder. A substantially cylindrical fixed shaft 13 is rotatably inserted into the pair of through holes 11A at both ends of the fixed holder 11, and a movable shaft 14 is rotatably inserted into the through holes 12A at both ends of the movable holder 12. 11 and the movable holder 12.

  Reference numeral 16 denotes a lock plate made of metal or insulating resin. The fixed shaft 13 and the movable shaft 14 protruding from the left end of the fixed holder 11 and the movable holder 12 are rotatable in the through holes 16A and 16B at both ends of the lock plate 16. Is inserted.

  Reference numeral 17 is a substantially semi-cylindrical fixed body made of steel, copper alloy, or insulating resin, and 18 is also a movable body. The stationary body 17 has a stationary gear 17A, and the movable body 18 has a movable gear 18A. In addition, the fixed body 17 is provided with a locking portion 17B, which is a substantially arcuate wall portion, by a notch, and the fixed body 17 is rotatably mounted on the left end of the fixed shaft 13 and the movable body 18 is rotatably mounted on the left end of the movable shaft 14. ing.

  Further, a protrusion (not shown) is formed at the right ends of the fixed body 17 and the movable body 18, and this is inserted into the holes 11 </ b> B and 12 </ b> B at the left end of the fixed holder 11 and the movable holder 12. 18 are connected and fixed to the fixed holder 11 and the movable holder 12, respectively.

  Further, 19 is a substantially cylindrical conversion gear made of metal or insulating resin, 20 is also a relay gear, and a substantially cylindrical conversion shaft 21 and a relay shaft 22 are inserted into the central hollow cylindrical portion, respectively. The right end of the conversion shaft 21 is fixed to the through hole 16C in the middle portion of the lock plate 16, and the right end of the relay shaft 22 is inserted into the through hole 16D.

  An engaging portion 16E that protrudes outward is provided at the lower right end of the lock plate 16, and each through hole of the lock plate 16 has a through hole 16B as shown in the partial side view of FIG. The through holes 16A and 16D are formed in an oval shape having a slightly larger diameter than the fixed shaft 13 and the relay shaft 22 that are inserted through the circular shape having a slightly larger diameter than the inserted movable shaft 14.

  The conversion gear 19 meshes with the fixed gear 17A, the relay gear 20 meshes with the conversion gear 19 and the movable gear 18A, and the relay shaft 22, the fixed shaft 13, and the left end of the movable shaft 14 are fixed to the connecting plate 23. The left end of the conversion shaft 21 is movably inserted into an elliptical through hole 23 </ b> A of the connecting plate 23.

  Reference numerals 25 and 26 are substantially cylindrical and are fixed cams made of metal such as steel, copper alloy, sintered alloy, etc. An uneven cam portion is formed on the outer periphery of the right end, and the fixed cams 25 and 26 are pinned. 24 is fixed to an intermediate portion between the fixed shaft 13 and the movable shaft 14.

  Further, 27 and 28 are substantially ring-shaped movable cams made of metal such as steel, copper alloy, sintered alloy, etc., and are arranged so as to be rotatable in the opening / closing direction and movable in the axial direction with respect to the fixed cams 25 and 26. At the same time, a pair of pin-shaped cam portions 27A and 28A are formed on the inner periphery so as to protrude.

  29 and 30 are substantially cylindrical and metal cases, 31 and 32 are coiled and steel wire springs, a fixed cam 25 and a movable cam 27 in the case 29, and a fixed cam 26 in the case 30. The movable cams 28 are housed, and the springs 31 and 32 are respectively mounted in a slightly bent state between the right side surfaces of the movable cams 27 and 28 and the inner surfaces of the cases 29 and 30.

  As shown in the partial perspective view of FIG. 5A, the springs 31 and 32 urge the movable cams 27 and 28 in the directions of the fixed cams 25 and 26, respectively, so that the pin-shaped cam portions 27A and 28A are urged. However, the fixed cams 25 and 26 are in elastic contact with predetermined portions of the concave and convex cam portions 25A and 26A.

  Further, the case 29 or 30 is provided with a pair of groove portions 29A and 30A, and the outer periphery of the movable cam 27 or 28 is provided with a pair of convex portions 27B and 28B that project outward, and these convex portions 27B and 28B are formed as groove portions. By being inserted into 29A and 30A respectively, the movable cams 27 and 28 are movable in the axial direction with respect to the cases 29 and 30, and are configured to rotate integrally in the rotational direction.

  Further, the cases 29 and 30 are positioned on the fixed shaft 13 and the movable shaft 14 by the retaining ring 15, and the left end tongue pieces 29 </ b> B and 30 </ b> B are formed in the notches 11 </ b> C and 12 </ b> C of the fixed holder 11 and the movable holder 12. Each is locked and fixed to the fixed holder 11 and the movable holder 12.

  Reference numerals 33 and 34 are substantially cylindrical guide cylinders, and the guide cylinders 33 and 34 are attached to the right end side of the fixed holder 11 and the movable holder 12 and fixed to the right end portions of the fixed shaft 13 and the movable shaft 14. A holding plate 35 is attached to the right ends of the guide cylinders 33 and 34 to constitute an opening / closing device 40.

  In addition, the opening / closing device 40 configured in this way has a sound such as an operation unit 41A or a microphone having a fixed holder 11 having a plurality of keys on the upper surface, as shown in a perspective view of the mobile phone in FIG. The movable holder 12 is attached to the fixed casing 41 formed with the input unit 41B and the movable casing 42 formed with a display unit 42A such as an LCD and an audio output unit 42B such as a speaker on the surface. The movable housing 42 is pivotally supported with respect to the fixed housing 41 so as to be openable and closable to constitute an electronic device.

  7A, in the state where the movable casing 42 is closed with respect to the fixed casing 41, as shown in FIG. The movable holder 12 overlaps with and is in a closed state.

  Further, in this closed state, as shown in FIG. 5A, the fixed holder 11 and the movable holder 12 are provided with cam portions 27A and 25A elastically contacting predetermined positions of the movable cam 27 and the fixed cam 25, and the movable cam. A force in the closing direction is applied by the cam portions 28A and 26A of the fixed cam 26, and the closed state is maintained.

  When the movable casing 42 is opened by hand from this closed state, as shown in FIG. 3B, the movable holder 12 attached and fixed to the movable casing 42 is locked by the lock plate 16 through which the fixed shaft 13 is inserted. 16A, the conversion gear 19 meshed with the fixed gear 17A rotates counterclockwise, and the relay gear 20 meshed with the conversion gear 19 and the movable gear 18A rotates clockwise, respectively, at a predetermined angle. For example, when opened to about 160 degrees, the engaging portion 16E at the lower right end of the lock plate 16 comes into contact with the inner periphery of the engaging portion 17B of the fixed body 17.

  At this time, as shown in FIG. 5B, the case 30 rotates with the rotation of the movable holder 12, and the movable cam 28 rotates while moving in the axial direction and is fixed to the fixed shaft 13. The fixed cam 25 rotates, and the cam portions 27A and 28A slide in sliding contact with the cam portions 25A and 26A, and the elastic contact location of each cam portion changes, so that a force in the opening direction is applied to the movable holder 12 .

  That is, in this state, the movable holder 12 is urged in the opening direction, but is locked so as not to be opened further by the engaging portion 16E and the locking portion 17B, and the movable holder 12 is mounted. As shown in FIG. 7B, the housing 42 is held in a state in which it can be easily opened by opening around 160 degrees.

  Next, from this state, as shown in FIGS. 3C and 5C, when the movable holder 12 is slightly returned to the closing direction, the conversion gear 19 rotates clockwise, and the fixed gear 17A and the relay are relayed. Since it moves upward with respect to the gear 20, the lock plate 16 also moves upward along with this, and the engaging portion 16E is separated from the locking portion 17B and the locked state is released.

  After that, when the movable housing 42 is further operated in the opening direction as shown in FIG. 7C, the conversion gear 19 is turned counterclockwise and the relay gear 20 is turned as shown in FIG. 4A. As shown in FIG. 6A, the movable holder 12 is rotated by the movable cam 27 and the fixed cam 25, and the movable cam 28 and the fixed cam 26, respectively. It is biased in the opening direction.

  Then, as shown in FIG. 7D, in a state where the movable casing 42 is overlapped with the lower surface of the fixed casing 41, as shown in FIG. 6B, the movable cam 27, the fixed cam 25, and the movable cam 28 are provided. The movable holder 12 is urged toward the lower surface of the fixed holder 11 by the fixed cam 26, and the movable holder 12 rotates 360 degrees with respect to the fixed holder 11 as shown in FIG. At the same time, the engaging portion 16E of the lock plate 16 contacts the upper end of the locking portion 17B of the fixed body 17.

  That is, in the state of 360 degrees, the movable holder 12 is urged toward the lower surface of the fixed holder 11, and the movable housing 42 is held on the lower surface of the fixed housing 41 by the engaging portion 16E and the locking portion 17B. As shown in FIG. 7D, the operation unit 41A is exposed on the upper surface and the display unit 42A is exposed on the lower surface, so that the operation and the LCD can be easily viewed.

  As described above, the opening / closing device 40 according to the present embodiment includes the fixed gear 17A of the fixed body 17, the conversion gear 19 meshed with the fixed gear 17 and the relay gear 20 meshed with the conversion gear 19 and the movable gear 18A of the movable body 18. When the movable holder 12 to which the movable body 18 is fixed is opened at a predetermined angle with respect to the fixed holder 11 that is formed from the lock plate 16 to which each gear is mounted and the fixed body 17 is fixed, the lock plate 16 The engaging portion 16E at the lower right end is in contact with the inner periphery of the engaging portion 17B of the fixed body 17, and the conversion gear 19 is movable.

  For this reason, when the movable holder 12 is opened with respect to the fixed holder 11 at a predetermined angle, for example, around 160 degrees, the movable holder 12 is locked by the engaging portion 16E and the locking portion 17B, and the movable housing 12 is locked. The body 42 can be held in a state where it is easy to make a call.

  If the movable holder 12 is slightly returned from this state in the closing direction, the conversion gear 19 moves upward to release the locked state, and further, the movable holder 12 is rotated up to 360 degrees to fix the movable casing 42. The operation unit 41A and the display unit 42A are exposed on the top and bottom surfaces of the casing 41, and can be held in a state where the operation and the LCD can be easily viewed.

  Furthermore, the fixed cams 25 and 26, the movable cams 27 and 28, etc. interlocked with these opening / closing operations move the movable holder 12 in the closed direction when the movable holder 12 is closed and in the opened direction when the movable holder 12 is opened or rotated 360 degrees. 12 is energized so that a quick opening / closing operation and holding can be performed.

  Thus, according to the present embodiment, the fixed gear 17A of the fixed body 17, the conversion gear 19 meshed with the fixed gear 17 and the relay gear 20 meshed with the conversion gear 19 and the movable gear 18A of the movable body 18 are connected to the lock plate. When the movable body 18 is opened at a predetermined angle with respect to the fixed body 17, the engaging portion 16E of the lock plate 16 is brought into contact with the engaging portion 17B of the fixed body 17. At the same time, by forming the conversion gear 19 so as to be movable, it is possible to hold it at a predetermined angle, and also to move the conversion gear 19 and further perform opening and closing operations. An open / close device capable of operation can be obtained.

  In the above description, the engaging portion 17B with which the engaging portion 16E of the lock plate 16 abuts is described as being formed on the fixed body 17. However, an engaging portion is provided at the left end of the fixed holder 11, and It is good also as a structure which abuts the joint part 16E.

  In the above description, the configuration in which the movable casing 42 is opened and closed by hand and the movable holder 12 is rotated has been described. However, the movable holder 12 is provided by pressing the push button from the closed state by providing parts such as a push button and a reverse cam. For example, the present invention can be applied to a so-called one-push open / closed opening / closing device in which the opening 12 is automatically opened to, for example, 160 degrees, and then the movable holder 12 is slightly returned to the closing direction by hand and further opened to 360 degrees. It is.

(Embodiment 2)
Using the second embodiment will be described for the invention of particular according to the first aspect of the present invention.

  In addition, the same code | symbol is attached | subjected to the part of the structure same as the structure of Embodiment 1, and detailed description is abbreviate | omitted.

  8 is a perspective view of the switchgear according to the second embodiment of the present invention, FIG. 9 is an exploded perspective view thereof, 53 is a fixed shaft, 54 is a movable shaft, and is fixed to the through holes 51A at both ends of the fixed holder 51. In the case of the first embodiment, the shaft 53 is inserted through the through holes 52A at both ends of the movable holder 52 so that the movable shafts 54 can rotate, and is locked to the fixed holder 51 and the movable holder 52 by the retaining ring 15. It is the same.

  Reference numeral 56 denotes a lock plate made of metal or insulating resin, and the fixed shaft 53 and the movable shaft 54 protruding from the left end of the fixed holder 51 and the movable holder 52 are rotatably inserted into the through holes 56A and 56B at both ends. This is the same as in the first embodiment.

  Reference numeral 66 denotes a reinforcing lock plate made of metal or insulating resin that is disposed between the lock plate 56 and the fixed holder 51 or the movable holder 52. The fixed shafts 53 and 54 are inserted into the through holes 66A and 66B at both ends. The right end of the support shaft 67 is fixed to the substantially central through hole 66 </ b> C, and the left end of the support shaft 67 is inserted into the substantially central through hole 56 </ b> D of the lock plate 56 to lock the reinforcing lock plate 66. The plate 56 is rotatably supported and attached.

  Further, 57 is a substantially cylindrical fixed body, and 58 is also a movable body, and meshed with a fixed gear 57A of the fixed body 57 and a conversion gear 59 meshed with the fixed gear 57A, or a movable gear 58A of the conversion gear 59 and the movable body 58. The relay gear 60 is provided, the right end of the conversion shaft 61 inserted through the conversion gear 59 is fixed to the through hole 56C of the lock plate 56, and the right end of the relay shaft 62 inserted through the relay gear 60 is inserted into the through hole 56D. In addition, the relay shaft 62, the fixed shaft 53, and the left end of the movable shaft 54 are fixed to the connecting plate 63, and the left end of the conversion shaft 61 is movably inserted into the elliptical through hole 63A of the connecting plate 63. This is similar to the case of the first embodiment.

  An engaging portion 56E is provided at the lower right end of the lock plate 56, and a locking portion 57B is provided on the fixed body 57 corresponding to the engaging portion 56E. As in the case of the first embodiment, a locking portion 57B which is a wall portion is provided, and the fixed body 57 is rotatably mounted on the left end of the fixed shaft 53 and the movable body 58 is rotatably mounted on the left end of the movable shaft 54. is there.

  An engaging portion 66E that protrudes outward is provided at the lower left end of the reinforcing lock plate 66, and an engaging portion that is a substantially arcuate wall portion corresponding to the engaging portion 66E is provided on the left outer side of the movable body 58. 58B is provided.

  Further, the right end protrusions 57C and 58C of the fixed body 57 and the movable body 58 are inserted into the left end holes 51B and 52B of the fixed holder 51 and the movable holder 52, respectively, and are connected and fixed. This is the same as the first embodiment.

  Further, the through hole 56B of the lock plate 56 is formed in a circular shape having a diameter slightly larger than the inserted movable shaft 54, and the through hole 56A is formed in an elliptical shape having a diameter larger than that of the fixed shaft 53 inserted therethrough. 56D is formed in a substantially L shape in which the left side where the relay shaft 62 is inserted is slightly larger than the relay shaft 62 and the right side where the left end of the support shaft 67 is movably inserted is connected to the two through holes. Has been.

  The fixed cams 25 and 26 are mounted to the right of the fixed shaft 53 and the movable shaft 54, and the movable cams 27 and 28 urged by the springs 31 and 32 are arranged opposite to them, and these are the cases. When the movable holder 52 is closed with respect to the fixed holder 51 by the fixed cam 25 and the movable cam 27, and the fixed cam 26 and the movable cam 28, it is opened in the closing direction or rotated 360 degrees. In this state, the movable holder 52 is biased in the opening direction as in the case of the first embodiment.

  The guide cylinders 33 and 34 are mounted on the right end side of the fixed holder 51 and the movable holder 52, and are fixed to the right end portions of the fixed shaft 53 and the movable shaft 54, and the holding plate 35 is attached to the right ends of the guide cylinders 33 and 34. As shown in FIG. 7B, the opening / closing device 70 is configured, and the opening / closing device 70 can be opened / closed to the fixed housing 41 and the movable holder 52 to the movable housing 42 as shown in FIG. It is the same as in the case of the first embodiment that the electronic device is configured by being pivotally supported.

  In the above configuration, the opening / closing device 70 opens and closes the movable housing 42 with respect to the fixed housing 41 of the electronic device, as in the first embodiment, but the opening / closing device 70 according to the present embodiment. Differences in operation between the switchgear 40 according to the first embodiment and the switchgear 40 according to the first embodiment will be described below with reference to FIGS. 7, 10, and 11.

  FIGS. 10 and 11 are side views of the main part. Among the side-by-side drawings, the left side mainly includes the fixed gear 57A of the fixed body 57, the conversion gear 59, the relay gear 60, and the movable gear 58A of the movable body 58. The right side view shows the side view mainly showing the lock plate 56, and the right side view shows the side view mainly showing the reinforcing lock plate 66.

  Then, as shown in FIG. 7A and FIG. 10A, the movable holder 52 overlaps above the fixed holder 51 of the opening / closing device 70 and is biased in the closing direction, as shown in FIG. 7B. Thus, when the movable housing 42 is opened by hand, as shown in FIG. 10B, the movable holder 52 has a through hole 56A in the lock plate 56 through which the fixed shaft 53 is inserted and a through hole 66A in the reinforcing lock plate 66. , And the conversion gear 59 meshed with the fixed gear 57A is rotated counterclockwise, and the relay gear 60 meshed with the conversion gear 59 and the movable gear 58A is rotated clockwise to a predetermined angle, for example, 160 degrees. Open up and down.

  At this time, the engaging portion 56E at the lower right end of the lock plate 56 contacts the inner periphery of the engaging portion 57B of the fixed body 57, and the engaging portion at the lower left end of the reinforcing lock plate 66 disposed so as to overlap the right side surface of the lock plate 56. 66E also contacts the inner periphery of the locking portion 58B of the movable body 58, and the movable holder 52 is held at a predetermined angle with respect to the fixed holder 51.

  That is, in addition to the engaging portion 56E of the lock plate 56 coming into contact with the engaging portion 57B of the fixed body 57, the engaging portion 66E of the reinforcing lock plate 66 also comes into contact with and held by the engaging portion 58B of the movable body 58. As a result, the movable holder 52 is firmly held at a predetermined angle with respect to the fixed holder 51, and when the urging force of the movable casing 42 in the opening direction is large or when the movable casing 42 is pushed in the opening direction at a predetermined angle. Also, the movable housing 42 is configured to be reliably held at a predetermined angle with respect to the fixed housing 41.

  Next, as shown in FIG. 10C, when the movable holder 52 is slightly returned to the closing direction from this state, the conversion gear 59 rotates clockwise and moves upward with respect to the fixed gear 57 </ b> A and the relay gear 60. Accordingly, along with this, the reinforcing lock plate 66 via the lock plate 56 and the support shaft 67 also moves upward, so that the engaging portion 56E is moved from the locking portion 57B and the engaging portion 66E is moved to the locking portion 58B. Each of them is released from the locked state.

  Thereafter, when the movable casing 42 is further operated in the opening direction as shown in FIG. 7C, the conversion gear 59 is turned counterclockwise and the relay gear 60 is turned as shown in FIG. 11A. It is the same as in the first embodiment that the movable holder 52 is urged in the opening direction while rotating in the clockwise direction and the movable holder 52 is rotated in the opening direction.

  11B, the movable holder 52 is urged toward the lower surface of the fixed holder 51, and the movable holder 52 rotates 360 degrees with respect to the fixed holder 51 and overlaps the lower surface of the fixed holder 51. As shown in FIG. 7D, the engaging portion 56E of the plate 56 contacts the engaging portion 57B of the fixed body 57, and the engaging portion 66E of the reinforcing lock plate 66 contacts the engaging portion 58B of the movable body 58. In addition, the electronic device is in a state in which the movable housing 42 is overlapped and held on the lower surface of the fixed housing 41.

  As described above, according to the present embodiment, the reinforcing lock plate 66 that is rotatably supported is mounted substantially at the center of the lock plate 56, and the locking portion 58 B formed on the movable body 58 is attached to the reinforcing lock plate 66. When the provided engaging portions 66E are brought into contact with each other at a predetermined angle, the engaging portions 56E and 66E provided on the lock plate 56 and the reinforcing lock plate 66 when the contact portions 66E are opened at a predetermined angle correspond to the locking portions 57B. Therefore, the movable holder 52 can be more firmly and reliably held with respect to the fixed holder 51 than in the first embodiment.

  Further, in the above description, the locking portion 57B with which the engaging portion 56E of the lock plate 56 contacts is fixed to the fixed body 57, and the locking portion 58B with which the engaging portion 66E of the reinforcing lock plate 66 contacts is fixed to the movable body 58. Although the formed configuration has been described, the engaging portion 56E of the lock plate 56 contacts the left end of the fixed holder 51 and the engaging portion 66E of the reinforcing lock plate 66 contacts the left end of the movable holder 52. It is good also as a structure which provided the stop part.

  The switchgear according to the present invention can be obtained with a simple configuration and capable of various opening / closing operations, and is useful as a switchgear used in various electronic devices.

1 is a perspective view of a switchgear according to a first embodiment of the present invention. Exploded perspective view Side view of the same part Side view of the same part Partial perspective view Partial perspective view Perspective view of the mobile phone The perspective view of the switchgear by the 2nd Embodiment of this invention Exploded perspective view Side view of the same part Side view of the same part Perspective view of a conventional mobile phone

Explanation of symbols

11, 51 Fixed holder 11A, 12A, 51A, 52A Through-hole 11B, 12B Hole 11C, 12C Notch 12, 52 Movable holder 13, 53 Fixed shaft 14, 54 Movable shaft 15 Retaining ring 16, 56 Lock plate 16A, 16B, 16C, 16D, 23A, 56A, 56B, 56C, 56D, 63A, 66A, 66B, 66C Through hole 16E, 56E, 66E Engagement portion 17, 57 Fixed body 17A, 57A Fixed gear 17C, 18C Protrusion portion 17B, 57B, 58B Locking portion 18, 58 Movable body 18A, 58A Movable gear 19, 59 Conversion gear 20, 60 Relay gear 21, 61 Conversion shaft 22, 62 Relay shaft 23, 63 Connecting plate 24 Pin 25, 26 Fixed cam 25A, 26A, 27A, 28A Cam part 27, 28 Movable cam 27B, 28B Convex part 29, 30 Case 29A, 30A Groove part 29B, 30B Tongue piece part 31, 32 Spring 33, 34 Guide cylinder 35 Holding plate 40, 70 Opening / closing device 41 Fixed casing 41A Operation part 41B Audio input part 42 Movable casing 42A Display part 42B Audio output part 66 Reinforcement lock plate 67 Support shaft

Claims (1)

A fixed body connected to the fixed holder and formed with a fixed gear; a movable body connected to the movable holder and formed with a movable gear; a conversion gear meshed with the fixed gear; and the conversion gear and the movable gear meshed A relay gear and a lock plate on which the gears are mounted. When a reinforcing lock plate rotatably mounted at the center of the lock plate is mounted and the movable holder is opened at a predetermined angle with respect to the fixed holder. in the engagement portion abutting against the engaging portion formed on the stationary member or the fixed holder is provided on the lock plate, the movable holder when opened to the predetermined angle with respect to the fixed holder, the movable An opening / closing device in which an engagement portion that abuts on a locking portion formed on a body or the movable holder is provided on the reinforcing lock plate, and the conversion gear is movably formed.

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