JP2010249285A - Switching device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a switching device used mainly for various electronic devices, which is operated with good feel by reducing the sound or impact in switching operation. <P>SOLUTION: In the switching device, a contact part 26A of a movable cam 26 which elastically contacts with a fixed cam 2 is formed so as to protrude toward the fixed cam 2 beyond a contact part 26B which elastically contacts with a reversion cam 12. Thus, since the contact part 26A which elastically contacts with the fixed cam 2 after the reversion cam 12 is moved is protruded toward the fixed cam 2 beyond the contact part 26B which elastically contacts with the reversion cam 12, and is formed so as to hardly have a gap between the fixed cam 2 and it, the contact part 26A never collides with the fixed cam 2 after the reversion cam 12 is moved, and the sound or impact in switching operation is minimized to ensure the operation with good feel. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an opening / closing device mainly 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 been diversified and highly functional, there are an increasing number of devices that perform various operations by opening and closing a movable housing with respect to a fixed housing. There is also a demand for an opening / closing device that can perform an opening / closing operation with a good feel.

  Such a conventional switchgear will be described with reference to FIGS.

  These drawings are partially enlarged in size for easy understanding of the configuration.

  FIG. 6 is a sectional view of a conventional switchgear, and FIG. 7 is an exploded perspective view. In FIG. 6, reference numeral 1 denotes a substantially cylindrical fixed body, and a substantially triangular shape protruding rightward at the outer peripheral right end. A pair of fixed cams 2 are formed.

  Reference numeral 3 denotes a fixed shaft, and reference numeral 4 denotes a substantially cylindrical fixed case. A fixed body 1 is fixed to an intermediate portion of the fixed shaft 3, and a fixed case 4 is fixed to a left end portion.

  Reference numeral 5 denotes a substantially cylindrical movable body, which is disposed so as to be rotatable in the opening / closing direction and movable in the axial direction with respect to the fixed body 1, and has a substantially triangular shape protruding leftward at the outer peripheral left end. A pair of movable cams 6 is formed.

  Reference numeral 7 denotes a substantially cylindrical movable case, in which the movable body 5 is movable in the axial direction and is housed so as to rotate integrally with the movable case 7 in the rotational direction. .

  Further, the fixed case 4 is rotatably mounted in the left end opening of the movable case 7, the fixed shaft 3 is inserted through the movable case 7, and the right end portion can be rotated to the outer surface of the movable case 7 by the retaining ring 8. It is attached to.

  Reference numeral 9 denotes a coiled spring, which is mounted in a slightly bent state between the right side surface of the movable body 5 and the inner side surface of the movable case 7, and the spring 9 moves the movable body 5 toward the left stationary body 1. Is being energized.

  10 is a substantially cylindrical reversal body, 11 is a substantially disc-shaped release body, and a pair of substantially triangular reversing cams 12 projecting to the right is provided on the outer peripheral right end of the reversal body 10. A pair of release cams 13 are also formed at the outer peripheral right end.

  Furthermore, the fixed body 1 is inserted into the reversing body 10, and the reversing body 10 is guided to the outer periphery of the fixed body 1 so as to be movable in the axial direction, and the release body 11 is attached to the fixed case 4 so that it can rotate. Has been.

  Reference numeral 14 denotes a winding spring, and one end is locked to the release body 11 in a slightly twisted state, and the release body 11 is returned to a predetermined angle by the winding spring 14.

  Reference numeral 15 denotes a pressing body in which a pair of pressing cams 16 protruding rightward are formed at the outer peripheral right end portion. The pressing body 15 is attached to the left end of the fixed shaft 3 so as to be movable in the axial direction, and the pressing body 15 is slightly bent. The open / close device 20 is configured by being biased by the coiled spring 17 in a state of being in a protruding state and the left end protruding leftward from the fixed case 4.

  The opening / closing device 20 configured as described above is, for example, as shown in the perspective view of the mobile phone in FIG. 5, the fixed case 4 has a voice such as an operation unit 21 </ b> A having a plurality of keys arranged on the upper surface or a microphone. The movable case 7 is fixed to the fixed casing 21 in which the input unit 21B is formed, and to the movable casing 22 in which a display unit 22A such as a liquid crystal display element and an audio output unit 22B such as a speaker are formed on the front surface.

  In addition, a push button is attached to the pressing body 15, and the push button protrudes from the side surface of the fixed casing 21, and as described above, the opening / closing device 20 pivots the lower end of the movable casing 22 at the upper end of the fixed casing 21. An electronic device is constructed.

  In the above configuration, as shown in FIG. 6, when the tip of the movable cam 6 is in elastic contact with the inclined portion on the upper side of the reversing cam 12, the movable body 5 is biased upward by the spring 9. Therefore, a biasing force in the closing direction acts on the movable casing 22 to which the movable case 7 is attached, and the movable casing 22 is held in a state of being closed with respect to the fixed casing 21.

  In addition, when the push button on the side surface of the fixed housing 21 is pressed with a finger from this closed state, the pressing cam 16 of the pressing body 15 to which the pressing button is attached presses the release cam 13, and the release body 11 moves the winding spring 14. The release cam 13 is disengaged from the left end of the reversing body 10 and the reversing cam 12 moves to the left.

  Then, the movable cam 6 biased by the spring 9 moves to the left by a gap L between the movable cam 6 and the fixed cam 2 shown in FIG. When 6 is elastically slid on the fixed cam 2 and rotates downward, the movable body 5 and the movable case 7 are biased in the downward opening direction, and this force causes the movable housing 22 to open. Thus, the movable casing 22 is held in a state of being opened at a predetermined angle with respect to the fixed casing 21, for example, near 180 degrees at which a telephone call or the like is easily performed.

  Further, when the movable casing 22 is pressed in the closing direction by hand and closed to a predetermined angle from this opened state, the movable cam 6 is elastically slid on the fixed cam 2 and then the reversing cam is reversed. 12 is brought into elastic contact with the upper inclined portion to return to the state shown in FIG. 6, and the movable casing 22 is held in a closed state where it is easy to carry.

  That is, when opening the movable casing 22 in addition to the opening / closing operation by hand, the reversing cam 12 is moved in the left-right direction, that is, the axial direction by pressing the push button to open the movable casing 22 with one touch. It was configured to allow one-touch open operation.

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

JP 2008-138763 A

  However, in the above-described conventional opening / closing device, when the pressing body 15 is pressed and the movable housing 22 is operated by one-touch opening, the movable cam 6 biased by the spring 9 is moved after the reversing body 10 moves to the left. Moves to the left by the gap L and elastically contacts with the inclined portion below the fixed cam 2 from the reversing cam 12, so that the movable housing 22 is particularly opened by the collision of the movable cam 6 with the fixed cam 2. When performed rapidly, there is a problem that a loud sound or a shock to the hand may occur.

  The present invention solves such a conventional problem, and an object thereof is to provide an opening / closing device that can be operated with a good touch with less noise and impact during the opening / closing operation.

  In order to achieve the above object, the present invention comprises an opening / closing device in which an abutting portion that elastically contacts a fixed cam of a movable cam protrudes in a fixed cam direction from an abutting portion that elastically contacts a reversing cam. Yes, the abutment part of the movable cam that comes into elastic contact with the fixed cam after the reversing cam moves is formed to protrude in the fixed cam direction from the abutment part that comes into elastic contact with the reversing cam, and there is almost no gap between the movable cam and the fixed cam. Since it is formed so that it does not come into contact, the movable cam does not collide with the fixed cam after the reversing cam moves, and there are few sounds and impacts during opening and closing operations, and it can be operated with a good feel The switchgear can be obtained.

  As described above, according to the present invention, it is possible to obtain an advantageous effect that it is possible to realize an opening / closing device that can be operated with a good touch with less sound and impact during the opening / closing operation.

Sectional drawing of the switchgear by one embodiment of this invention Exploded perspective view Partial perspective view Operation diagram of the cam Perspective view of mobile phone Sectional view of a conventional switchgear Exploded perspective view

  Embodiments of the present invention will be described below with reference to FIGS.

  These drawings are partially enlarged in size for easy understanding of the configuration.

  Further, the same reference numerals are given to the same components as those described in the background art section, and the detailed description will be simplified.

(Embodiment)
FIG. 1 is a sectional view of a switchgear according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view thereof. In the figure, 1 is a substantially cylindrical shape made of a metal such as steel, copper alloy, sintered alloy, etc. A fixed body is formed with a pair of substantially triangular fixed cams 2 protruding rightward at the outer peripheral right end.

  Reference numeral 3 denotes a metal fixed shaft, and 4 denotes a substantially cylindrical and metal fixed case. A fixed body 1 is fixed to an intermediate portion of the fixed shaft 3, and a fixed case 4 is fixed to a left end portion.

  Reference numeral 25 denotes a substantially cylindrical and metal movable body, which is disposed so as to be rotatable in the opening / closing direction and movable in the axial direction with respect to the fixed body 1 and is projected to the left at the outer peripheral left end. A pair of triangular movable cams 26 is formed.

  Further, as shown in the partial perspective view of FIG. 3, the movable cam 26 is formed of an inner peripheral contact portion 26A and an outer peripheral contact portion 26B having a step difference from the inner peripheral contact portion 26A. The contact portion 26A is formed so as to protrude in the direction of the fixed cam 2 from the contact portion 26B on the outer peripheral side.

  The movable body 25 is housed in a substantially cylindrical and metallic movable case 7 so as to be movable in the axial direction and to rotate integrally with the movable case 7 in the rotational direction.

  In addition, the fixed case 4 is rotatably mounted in the left end opening of the movable case 7, the fixed shaft 3 is inserted through the movable case 7, and the right end portion can be rotated to the outer surface of the movable case 7 by the retaining ring 8. It is attached to.

  Further, 9 is a coil-shaped spring made of steel wire, which is mounted in a slightly bent state between the right side surface of the movable body 25 and the inner side surface of the movable case 7, and by this spring 9, the movable body 25 is fixed to the left side. It is biased toward the body 1.

  Reference numeral 10 denotes a substantially cylindrical and metal reversal body, 11 is a substantially disc-shaped release body, and a pair of substantially triangular reversing cams 12 projecting to the right are released at the right outer periphery of the reversal body 10. Similarly, a pair of release cams 13 are respectively formed on the outer peripheral right end of the body 11.

  Further, the fixed body 1 is inserted into the reversing body 10, and the reversing body 10 is guided to the outer periphery of the fixing body 1 so as to be movable in the axial direction, and the release body 11 is rotatably mounted on each fixing case 4. Has been.

  Further, the tip of the contact portion 26B on the outer peripheral side of the movable cam 26 of the movable body 25 urged to the left by the spring 9 is in elastic contact with the inclined portion on the upper side of the reverse cam 12 of the reverse body 10. The fixed cam 2 is formed so that there is almost no gap between the inner peripheral side contact portion 26A that protrudes leftward from the contact portion 26B and the fixed cam 2.

  Reference numeral 14 denotes a steel wire wound spring, one end of which is locked to the release body 11 in a slightly twisted state, and the release body 11 is returned to a predetermined angle by the winding spring 14. .

  Reference numeral 15 denotes a pressing body in which a pair of pressing cams 16 protruding rightward are formed at the outer peripheral right end portion. The pressing body 15 is attached to the left end of the fixed shaft 3 so as to be movable in the axial direction, and the pressing body 15 is slightly bent. The open / close device 30 is configured by being biased by the coiled spring 17 in a state of being in a protruding state and the left end protruding leftward from the fixed case 4.

  The opening / closing device 30 configured in this way is, for example, as shown in the perspective view of the mobile phone in FIG. 5, the fixed case 4 has a voice such as an operation unit 21 </ b> A or a microphone in which a plurality of keys are arranged on the upper surface. The movable case 7 is fixed to the fixed casing 21 in which the input unit 21B is formed, and to the movable casing 22 in which a display unit 22A such as a liquid crystal display element and an audio output unit 22B such as a speaker are formed on the front surface.

  In addition, a push button is attached to the pressing body 15, and the push button protrudes from the side surface of the fixed casing 21, and the lower end of the movable casing 22 can be opened and closed by the opening / closing device 30 as described above. An electronic device is constructed.

  In the above configuration, as shown in the cam operation diagram of FIG. 1 or FIG. 4A, in the state where the tip of the contact portion 26B on the outer peripheral side of the movable cam 26 is in elastic contact with the inclined portion on the upper side of the reversing cam 12, Since the movable body 25 is urged upward in the closing direction by the spring 9, the urging force in the closing direction acts on the movable casing 22 to which the movable case 7 is attached, and the movable casing 22 is fixed. 21 is held in a closed state.

  When the push button on the side surface of the fixed housing 21 is pressed with a finger from this closed state, the pressing cam 16 of the pressing body 15 to which the push button is attached presses the release cam 13, as shown in FIG. Further, the release body 11 rotates while bending the winding spring 14, the release cam 13 is disengaged from the left end of the reversing body 10, the reversing cam 12 moves leftward, and moves away from the tip of the contact portion 26 </ b> B of the movable cam 26.

  Therefore, as shown in FIG. 4C, the movable cam 26 biased by the spring 9 moves to the left, and the tip of the contact portion 26A elastically contacts the lower inclined portion of the fixed cam 2. At this time, as described above, between the fixed cam 2 and the inner peripheral side contact portion 26 </ b> A protruding leftward from the outer peripheral side contact portion 26 </ b> B that is elastically contacted with the reversing cam 12. Since the gap is formed so as to have almost no gap, almost no sound or impact is generated by the collision of the abutting portion 26A with the fixed cam 2.

  That is, after the reversing cam 12 is moved by the pressing operation of the push button, the inner peripheral side contact portion 26A of the movable cam 26 that is in elastic contact with the fixed cam 2 is the outer peripheral side contact portion 26B that is in elastic contact with the reverse cam 12. Rather than projecting in the direction of the fixed cam 2 so that there is almost no gap between the contact portion 26A and the fixed cam 2, so that the contact portion 26A does not collide with the fixed cam 2, It is configured so that almost no sound or impact occurs during the opening / closing operation.

  Thereafter, as shown in FIG. 4D, the tip of the abutting portion 26A of the movable cam 26 slides elastically on the lower inclined portion of the fixed cam 2 and rotates downward. The movable body 25 and the movable case 7 are urged downward in the opening direction, and the force in the opening direction is applied to the movable casing 22 by this force, so that the movable casing 22 has a predetermined angle with respect to the fixed casing 21. For example, it is held in an open state near 180 degrees where it is easy to make a call or the like.

  In addition, when the movable casing 22 is pressed in the closing direction by hand and closed to a predetermined angle from this open state, the abutting portion 26A of the movable cam 26 elastically moves upward on the fixed cam 2 contrary to the above. After sliding in contact, the contact portion 26B elastically contacts the inclined portion on the upper side of the reversing cam 12 to return to the state shown in FIG. 1 and FIG. 4A, and the movable housing 22 is in a closed state that is easy to carry. Retained.

  That is, when opening the movable casing 22 in addition to the opening / closing operation by hand, the reversing cam 12 is moved in the left-right direction, that is, the axial direction by pressing the push button to open the movable casing 22 with one touch. It is configured to allow one-touch open operation.

  When such a one-touch open operation is performed, as described above, the contact portion 26A on the inner peripheral side of the movable cam 26 that makes elastic contact with the fixed cam 2 is the contact portion on the outer peripheral side that makes elastic contact with the reversing cam 12. Since it is formed so as to protrude in the direction of the fixed cam 2 from 26B and so that there is almost no gap between the contact portion 26A and the fixed cam 2, an opening / closing operation by collision of the contact portion 26A with the fixed cam 2 is performed. The sound and impact of time are hardly generated.

  That is, the movable cam 26 is prevented from colliding with the fixed cam 2 during the one-touch open operation, and can be operated with a good feel with almost no sound or impact during the opening / closing operation. ing.

  Further, the abutting portion 26A of the movable cam 26 is formed so as to protrude in the direction of the fixed cam 2 from the abutting portion 26B so that there is almost no gap between the abutting portion 26A and the fixed cam 2. It is also possible to reduce the amount of movement 26 and shorten the axial dimension.

  As described above, according to the present embodiment, the contact portion 26A that elastically contacts the fixed cam 2 of the movable cam 26 protrudes in the direction of the fixed cam 2 from the contact portion 26B that elastically contacts the reversing cam 12. A contact portion 26A that elastically contacts the fixed cam 2 after the reversing cam 12 moves is formed so as to protrude in the direction of the fixed cam 2 from a contact portion 26B that elastically contacts the reversing cam 12, and the contact portion 26A and the fixed cam 2 Therefore, the contact portion 26A after the reversing cam 12 has moved does not collide with the fixed cam 2, and the sound and impact during opening / closing operations are small and good. It is possible to obtain an opening / closing device that can be operated with a touch.

  In the above description, the pair of fixed cams 2 and the reverse cam 12 are formed on the outer peripheral right end of the fixed body 1 and the reverse body 10, and the pair of movable cams 26 are formed on the outer peripheral left end of the movable body 25. Although the configuration for elastic contact has been described, a pin-shaped movable cam is formed to protrude on the outer periphery or inner periphery of the movable body 25 and is formed on the inner periphery or outer periphery of the fixed body 1 or the reversing body 10. It is possible to implement the present invention even if it is configured to be elastically contacted.

  The switchgear according to the present invention can be obtained as a switchgear that can be operated with a good touch with little sound and shock during opening / closing operation, and is mainly useful as a switchgear used in various electronic devices.

DESCRIPTION OF SYMBOLS 1 Fixed body 2 Fixed cam 3 Fixed shaft 4 Fixed case 7 Movable case 8 Retaining ring 9 Spring 10 Reverse body 11 Release body 12 Reverse cam 13 Release cam 14 Winding spring 15 Press body 16 Press cam 17 Spring 21 Fixed housing 21A Operation part 21B Audio input unit 22 Movable housing 22A Display unit 22B Audio output unit 25 Movable body 26 Movable cams 26A, 26B Abutting unit 30 Opening / closing device

Claims (1)

A fixed body in which a fixed cam is formed, a movable body that is rotatably arranged with respect to the fixed body, and a movable cam is formed on a surface facing the fixed cam, and the movable cam is arranged in the direction of the fixed cam. And a contact portion that is arranged so as to be movable in the axial direction and has a reversing cam formed on a surface facing the movable cam, and is in elastic contact with the fixed cam of the movable cam. An opening / closing device that protrudes in the direction of the fixed cam from a contact portion that elastically contacts the reversing cam.

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