JP2010033951A - Push lock switch and electronic device mounting structure thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a push lock switch that allows miniaturization of an electronic device as it needs less space for installation when installed inside an outer case of the electronic device, and an electronic device mounting structure thereof. <P>SOLUTION: The push lock switch includes: a first and a second switch case 10, 210; an operator 110 slidably housed in the first and second switch case 10, 210; a snap spring 190 for snapping the operator 110 in the direction A of sliding movement; a switch mechanism 50 where a contact is controlled to open and close by the sliding movement of the operator 110; and a lock mechanism 150 for locking the operator 110 in a locked position to which it is pressed and moved against the snapping force of the snap spring 190 and for automatically returning the operator to an unlocked position as it is pressed again. The operator 110 is provided with an operating lever 111 which projects in a direction perpendicular to the direction A of sliding movement. The operating lever 111 projects out of a lever passing section 211 provided on an outer peripheral surface parallel to the direction A of sliding movement. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a push lock switch suitable for use as a power switch or the like and an electronic device mounting structure thereof.

  Conventionally, this type of push lock switch, for example, as shown in FIG. 1 of Patent Document 1, houses an operating body (C) in a slidable manner in a switch case (A), and is operated by a compression spring (10) ( The contact mechanism (B) installed in the switch case (A) by ejecting C) in one direction d and sliding the operating body (C) against the elastic force of the compression spring (10). An alternate mechanism (D) that temporarily stops at the moving position when the operating body (C) is slid between the operating body (C) and the switch case (A) is installed. Was configured.

However, in the above-described conventional push lock switch, the plunger part (32b) and the push button part (32c) provided on the operating body (C) protrude in the sliding movement direction of the operating body (C). As shown in FIG. 17, the push lock switch 500 is used as a power switch of an electronic device, for example, and is installed inside an outer case 510 of the electronic device, and a push button 550 attached to the push button portion 501 is provided with an opening 511 provided in the outer case 510. Since the push lock switch 500 is installed so that the longitudinal direction of the push lock switch 500 faces the direction orthogonal to the inner surface of the outer case 510, the push lock switch 500 is exposed to various other electronic components constituting the electronic component. The problem that the installation in the vicinity of the inner surface of the outer case 510 is obstructed, which becomes an obstacle to downsizing of electronic devices. There was.
JP-A-7-21876

  The present invention has been made in view of the above-described points, and an object of the present invention is to provide a push lock switch that can reduce the installation space when installed inside the outer case of the electronic device and to reduce the size of the electronic device, and the electronic device. It is to provide a mounting structure.

  The invention described in claim 1 includes a switch case, an operating body that is slidably accommodated in the switch case, a bullet mechanism that repels the operating body in the sliding movement direction in the switch case, And a switch mechanism whose contact is controlled to open and close by sliding movement of the operating body, and installed in a switch case, the operating body is pressed and moved from the unlocked position against the elastic force of the elastic mechanism. A lock mechanism that holds the lock at the locked position and releases the lock by pressing again and automatically returns to the unlocked position, and the operating body has a direction that intersects the sliding movement direction of the operating body. An operating lever that protrudes toward the end is provided. In push-lock switch, characterized in that protrudes to the outside from the part.

  In the invention according to claim 2 of the present application, the push lock switch according to claim 1 is arranged such that the sliding movement direction of the operating body is directed along the inner surface of the outer case of the electronic device to which the push lock switch is attached. In the electronic device mounting structure of the push lock switch, an operation knob that is installed inside the outer case and is attached to the operation lever is exposed from an opening provided in the outer case.

  The invention according to claim 3 of the present application is the electronic device mounting structure of the push lock switch according to claim 2, wherein the operation knob is pressed and moved against the elastic force of the elastic mechanism. A push between the case and the operation knob has a finger locking prevention structure that prevents the finger from being locked in order to prevent the operation knob from being pressed in the direction opposite to the pressing direction. It is in the electronic equipment mounting structure of the lock switch.

  According to a fourth aspect of the present invention, in the electronic device mounting structure of the push lock switch according to the third aspect, the operation knob presses and moves the operation knob against the elastic force of the elastic mechanism. The electronic device mounting structure for a push lock switch is characterized in that it is formed in a shape that increases its height in the direction of travel.

  According to a fifth aspect of the present invention, in the electronic device mounting structure of the push lock switch according to the third aspect, the elastic material is provided on a surface of the operation knob opposite to the surface provided with the finger locking prevention structure. The electronic device mounting structure of a push lock switch is characterized in that a finger locking portion that protrudes in a direction opposite to the direction in which the operation knob is pressed against the elastic force of the mechanism is provided.

  According to the first and second aspects of the present invention, the installation space when the push lock switch is installed inside the outer case of the electronic device can be reduced, and the electronic device can be downsized. At that time, it is not necessary to shorten the pressing stroke of the push lock switch. By sufficiently increasing the stroke, a reliable on / off operation and a good operating feeling can be obtained, which is particularly suitable for use as a power switch.

  According to the third aspect of the present invention, it is possible to prevent the operation knob from being pressed in the reverse direction, and it is possible to prevent damage caused by applying an excessive force to the push lock switch.

  According to the fourth and fifth aspects of the invention, in addition to the finger locking prevention structure according to the third aspect, the shape of the operation knob is pressed and moved against the elastic force of the elastic mechanism. Since the structure is easy to press only in any direction, it is possible to more effectively prevent the operation knob from being pressed in the reverse direction, and it is possible to prevent damage caused by applying an excessive force to the push lock switch.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[First Embodiment]
1 is a perspective view of the push lock switch 1-1 according to the first embodiment of the present invention, FIG. 2 is an exploded perspective view of the push lock switch 1-1 (parts on the upper side), and FIG. 1 is an exploded perspective view of 1 (a lower part thereof). FIG. As shown in these drawings, the push lock switch 1-1 includes a switch mechanism 50, an operating body 110, a lock mechanism 150, and a spring mechanism (hereinafter referred to as a “spring spring”) in the first switch case 10. 190, and the second switch case 210 and the mounting plate 230 are mounted thereon. Each component will be described below. In the following description, “up” refers to the direction from the first switch case 10 toward the operating body 110, and “down” refers to the opposite direction. The direction of arrow A shown in FIG. 2, that is, the moving direction of the operating body 110 housed in the first switch case 10 is referred to as a slide moving direction A.

  FIG. 4 is a perspective view of the first switch case 10 viewed from the lower surface side. As shown in FIGS. 3 and 4, the first switch case 10 is an integrally molded product of synthetic resin, is formed in a substantially rectangular box shape with the upper surface open, and the concave portion on the upper surface side becomes the storage portion 11. Yes. The storage portion 11 is separated into two chambers 15 and 17 by a separation wall 13 provided in the center in the sliding movement direction A. One chamber 15 is switched to the switch mechanism installation chamber 15 and the other chamber 17 is locked and elastic. A mechanism storage chamber 17 is provided. The separation wall 13 is substantially flat and is erected from the bottom surface of the storage portion 11, and both ends thereof in the slide movement direction A are connected to the opposing inner side walls.

  As shown in FIG. 4, a pair of slit-shaped terminal insertion holes 19 and 21 are provided on the bottom surface side of the switch mechanism installation chamber 15 on the bottom surface of the first switch case 10. The direction of the slit is the slide movement direction A. Both terminal insertion holes 19 and 21 are provided at positions that are separated by a predetermined distance in the slide movement direction A and slightly shifted in a direction orthogonal to the slide movement direction A.

  On the other hand, as shown in FIG. 3, a columnar pin mounting support portion 23 is erected from the approximate center of the bottom surface upward in the lock and bullet mechanism housing chamber 17, and a small amount is provided on the top surface. A pin mounting portion 25 made of a hole is provided. Cam mechanism support extending from one side surface of the outer peripheral side wall of the pin mounting support portion 23 to a slide movement direction A (a position below the cam groove mechanism 125 of the operating body 110 described below) that is lower than the height of the pin mounting support portion 23. A portion 26 is provided. The cam mechanism support portion 26 is erected in a wall shape from the bottom surface of the lock and bullet mechanism housing chamber 17.

  Guide grooves 27 made of notches extending toward the slide movement direction A are provided at inner positions (four locations) near both ends of the upper sides of the outer peripheral side walls 10a, 10c parallel to the slide movement direction A of the first switch case 10. It has been. Further, two protrusions 29, 31 are provided at predetermined positions on the outer surfaces of the pair of outer peripheral side walls 10a, 10c, respectively, so that a locking groove 33 is provided between them (in FIG. 3, the rear protrusion 29 and the locking). The groove 33 is not described). Further, the other outer peripheral side wall 10b is also provided with two protrusions 35 and 37, thereby providing a locking groove 39 therebetween.

  As shown in FIG. 3, the switch mechanism 50 includes a common fixed terminal piece 60, a fixed terminal piece 70, a rotor 80, a movable contact piece 90, and a compression spring 100, all of which are made of a metal plate. . The common fixed terminal piece 60 is formed by providing another component locking portion 63 on a substantially rectangular terminal portion 61. The other component locking part 63 is formed in a shape that protrudes upward in a band shape from the vicinity of one end of the upper side of the terminal part 61, then bends in a direction substantially away from the fixed terminal piece 70, and further bends and extends upward. The locking grooves 65 and 67 are provided in the two concave corners formed by these bends, respectively.

  The fixed terminal piece 70 is formed on a substantially rectangular terminal portion 71 by connecting a fixed contact installation portion 73 via a connecting portion 75. The fixed contact installation portion 73 has a substantially rectangular flat plate shape, and is arranged so as to be substantially orthogonal to the surface of the terminal portion 71 by bending the connection portion 75 at a substantially right angle. Is attached.

  The rotor 80 includes a base 83 having an opening 81 in the center, a pair of arm-shaped rotation operation pieces 85 that protrude from both sides of one end of the base 83 and face each other by bending upward, A central portion of the side between the pair of substantially L-shaped locking portions 87 protruding from both sides of the other end portion of the base portion 83 and facing each other by bending upward, and the two rotation operation pieces 85. And a tongue-like locking protrusion 89 cut and raised upward. The distal end portion of the rotating operation piece 85 is a pressing portion 85a, and the substantially perpendicular recess portion of the locking portion 87 is an engaging portion 87a.

  The movable contact piece 90 has a substantially rectangular shape with a base 93 having an opening 91 formed at the center, a substantially rectangular movable contact mounting portion 95 formed at one end of the base 93, and a lower surface of the movable contact mounting portion 95. A movable contact 97 (see FIG. 6) attached at the center, a spring locking portion 98 formed by the inner periphery of the opening 91 on the side provided with the movable contact attachment portion 95, and the opposite side provided with the movable contact attachment portion 95 And a rotor locking part 99 formed by the inner periphery of the opening 91.

  The compression spring 100 is configured by bending a rectangular plate spring into an inverted U shape, and is provided with locking portions 101 and 103 at both ends thereof.

  The operating body 110 is formed in a substantially rectangular shape by integrally molding synthetic resin, and the outer dimensions thereof are completely stored in the storage portion 11 of the first switch case 10 and can be slid in the sliding movement direction A. The outer dimensions are formed. A columnar operation lever 111 that protrudes upward (that is, protrudes in a direction intersecting the sliding movement direction A of the operation body 110) is provided at the center of the upper surface of the operation body 110, and is provided at the outer periphery of the four corners of the upper surface. Are provided with a small protrusion-like guide protrusion 113 projecting left and right, and a contact portion 115 made of a small protrusion protruding upward is provided on the upper surface of the four corners of the upper surface. The guide protrusion 113 is formed to have a size to be inserted into the guide groove 27 of the first switch case 10. A concave rail engaging portion 117 that extends linearly in the sliding movement direction A is provided at the center of the lower surface of the operating body 110. The rail engaging portion 117 is closely engaged with the separation wall 13 of the first switch case 10 and supports the operating body 110 slidably in the sliding movement direction A with the separation wall 13 as a rail. A concave switch mechanism storage portion 119 extending in the sliding direction is provided on the lower surface of one side of the rail engagement portion 117 (the side facing the switch mechanism installation chamber 15 of the first switch case 10). On the other side of the rail engaging portion 117 (the side facing the lock and the bullet mechanism housing chamber 17 of the first switch case 10), a lock and bullet mechanism housing portion comprising a through hole extending in the sliding direction. 121 and a cam mechanism forming portion 123 located at one end of the lock and bullet mechanism housing portion 121 are provided. The lock and bullet mechanism storage portion 121 is formed to have a dimension for inserting the pin mounting support portion 23 of the first switch case 10. The cam mechanism forming portion 123 is a substantially rectangular flat plate. A cam groove mechanism 125 having a predetermined shape is provided on the upper surface of the cam mechanism forming portion 123, and a linear recess 127 extending in the slide movement direction A is provided on the back surface of the cam mechanism forming portion 123. Is provided.

  The cam groove mechanism 125 is a part constituting the lock mechanism 150 together with a connecting pin 151 described below. This cam groove mechanism 125 is a conventionally known cam groove mechanism for various push locks (typically a heart-shaped cam groove mechanism). The cam groove (annular groove) 126 formed in the cam groove mechanism 125 has the following connecting pins. 151 cam engaging portion 153 moves in a loop in one defined direction. That is, the cam engaging portion 153 is positioned at the unlocked position a1 when unlocked, and once the operating body 110 moves in the sliding movement direction A (left direction in FIG. 2) with respect to the cam engaging portion 153. By moving to a2, and then releasing the movement, it is locked at the lock position a3. When the operating body 110 is moved again in the slide movement direction A (left direction in FIG. 2), the cam engagement portion 153 moves to the position a4, and when the movement is released, the cam engagement portion 153 returns to the original unlocked position a1.

  A pair of pressing projections 129 and 131 projecting in a thin plate shape are provided on the left and right side surfaces facing each other in the switch mechanism storage unit 119, and a gap between the pressing projections 129 and 131 is formed in the rotor 80. A pressing portion insertion portion 133 into which the pressing portion 85a is inserted is used. Further, the portion of the pressing protrusion 129 that protrudes in the lowest direction is a movable contact piece contact portion 135.

  The connecting pin 151 is bent at both ends of the metal rod in the same direction at a substantially right angle, and has one end as a cam engagement portion 153 and the other end as a shaft support portion 155.

  In this embodiment, the elastic spring 190 is constituted by a cylindrical coil spring (compression coil spring).

  The second switch case 210 is formed by molding a synthetic resin into a substantially rectangular flat plate shape, and its outer dimension is substantially the same as the outer dimension of the first switch case 10. A lever insertion portion 211 that slidably passes through the operation lever 111 of the operation body 110 is provided substantially at the center of the second switch case 210, and one side that faces the locking groove 39 of the first switch case 10. A substantially T-shaped locking piece 213 that is bent downward is provided on the side, and a pair of small protrusions are provided in the vicinity of the opposite side of the upper surface of the second switch case 210 where the locking piece 213 is provided. The engaging portion 215 is provided. In other words, the lever insertion portion 211 is provided on one of the outer peripheral surfaces parallel to the slide movement direction A of the switch case formed by the first and second switch cases 10 and 210. Here, FIG. 5 is a perspective view of the second switch case 210 viewed from the lower surface side. As shown in the drawing, at a position adjacent to the lever insertion portion 211 on the lower surface of the second switch case 210, a connecting pin presser portion 217 protruding in a circular shape and a part of the connecting pin presser portion 217 invade are connected. A spring retainer 219 that protrudes linearly at a height higher than the pin retainer 217 is provided.

  The mounting plate 230 is configured by bending a flat metal plate into a substantially U shape, separating the tip of the portion directed downward by bending into two, and providing a pair of locking portions 231. The mounting plate 230 is provided with a case engaging portion 233 including small holes that respectively engage the pair of engaging portions 215 of the second switch case 210.

  Next, a method for assembling the push lock switch 1-1 will be described. First, the common fixed terminal piece 60 and the fixed terminal piece 70 are accommodated in the switch mechanism installation chamber 15 of the first switch case 10, and the respective terminal portions 61 and 71 are inserted into the terminal insertion holes 19 and 21 of the first switch case 10. Then, the common fixed terminal piece 60 and the fixed terminal piece 70 are fixed to the bottom surface of the first switch case 10. Next, the rotor 80 is disposed on the terminal portion 61 of the common fixed terminal piece 60, and at that time, the locking protrusion 89 of the rotor 80 is inserted into the locking groove 65 of the common fixed terminal piece 60 as shown in FIG. 6. Next, the movable contact piece 90 is disposed between the two rotary operation pieces 85 of the rotor 80, and the rotor locking portion 99 of the movable contact piece 90 is moved to the rotor 80 as shown in FIG. Then, the compression spring 100 is disposed on the movable contact piece 90, and at this time, one locking portion 101 of the compression spring 100 is connected to the movable contact piece 90 as shown in FIG. The other locking portion 103 is locked to the locking groove 67 of the common fixed terminal piece 60 positioned below the opening 91 of the movable contact piece 90 while being locked to the spring locking portion 98.

  As a result, the switch mechanism 50 has a common fixed terminal piece 60 fixed to the first switch case 10, a fixed terminal piece 70 fixed to the first switch case 10 and having a fixed contact 77, as shown in FIG. The rotor 80 that is rotatably engaged with the terminal piece 60, the movable contact piece 90 that is rotatably engaged with the rotor 80 and has the movable contact 97, and the movable contact piece 90 are common. The structure is provided with a common fixed terminal piece 60, a compression spring 100 that maintains the engaged state between the rotor 80 and the movable contact piece 90 by repelling between the fixed terminal pieces 60. At this time, as shown in FIG. 6, the fixed contact 77 and the movable contact 97 are located a predetermined distance apart. At this time, the movable contact piece 90 is disposed so that its longitudinal direction is substantially parallel to the slide movement direction A.

  Next, the operating body 110 shown in FIG. 2 is housed in the housing portion 11 of the first switch case 10 shown in FIG. At this time, the operating body 110 is slidably supported by inserting the separation wall 13 of the first switch case 10 into the rail engaging portion 117 of the operating body 110. At the same time, each guide projection 113 is engaged with each guide groove 27, the pin mounting support portion 23 is inserted into the lock and impact mechanism housing portion 121, and the cam mechanism support portion 26 is inserted into the recess 127. The Further, at this time, as shown in FIG. 6, the pair of pressing portions 85 a of the rotor 80 constituting the switch mechanism 50 are inserted into the pair of pressing portion insertion portions 133 of the operating body 110, respectively. The movable contact piece pressing portion 135 is in contact with the upper surface of the movable contact piece 90 near the left and right ends of the movable contact attachment portion 95 so that the movable contact attachment portion 95 does not move upward from this position.

  Next, the shaft support portion 155 of the connection pin 151 is inserted into the pin attachment portion 25 at the upper end of the pin attachment support portion 23 exposed in the lock and elastic mechanism housing portion 121 of the operating body 110, and at the same time, the cam engagement of the connection pin 151. The joint portion 153 is engaged with the cam groove 126 of the operating body 110. Next, the elastic spring 190 is inserted into the lock of the operating body 110 and the elastic mechanism housing portion 121 while being compressed by a predetermined size. At this time, as shown in FIG. 8, the elastic spring 190 repels between the side surface of the pin mounting support portion 23 of the first switch case 10 and the lock of the operating body 110 and the inner peripheral surface of the elastic mechanism housing portion 121. The elastic force which always moves this to the right direction shown in FIG.

  Next, the second switch case 210 is covered so as to cover the first switch case 10. At that time, the operation lever 111 is inserted into the lever insertion portion 211 of the second switch case 210, and at the same time, the locking piece 213 is inserted into the locking groove 39. Lock to. Then, the mounting plate 230 is placed on the second switch case 210, and the engaging portions 215 of the second switch case 210 are inserted and engaged with the case engaging portions 233 of the mounting plate 230. At this time, if the pair of locking portions 231 of the mounting plate 230 are inserted into the locking grooves 33 of the first switch case 10 and the tips of the locking portions 231 are bent toward the lower surfaces of the protrusions 29 and 31, 1 is completed. The above assembling procedure is an example, and it goes without saying that the assembly may be performed using other various assembling procedures. As shown in FIG. 1, the push lock switch 1-1 has a region S2 in which the lock mechanism 150 is installed and a region S3 in which the spring spring 190 is installed in a straight line toward the slide movement direction A. In addition, since the region S1 where the switch mechanism 50 is installed and both the regions S2 and S3 are arranged in parallel to each other at the crossing position with respect to the sliding movement direction A of the operating body 110, the push lock switch 1-1 The length dimension toward the slide movement direction A can be shortened and the size can be reduced.

  Next, the operation of the push lock switch 1-1 will be described. 6 to 8 are explanatory views of the operation of the push lock switch 1-1. FIG. 6 is a schematic configuration diagram of the switch mechanism 50 portion when unlocked, and FIG. 7 is a schematic configuration diagram of the switch mechanism 50 portion when locked. FIG. 8 is a schematic configuration diagram of the lock mechanism 150 and the elastic spring 190 at the time of locking.

  First, when unlocked, as shown in FIG. 6, the movable contact piece 90 is ejected by the resilient force of the compression spring 100 so as to push out toward the movable contact 97 (forward), and the rotor 80 is shown in FIG. By rotating rightward, the pressing portion 85 a comes into contact with the side surface of the pressing portion insertion portion 133 of the operating body 110 on the pressing projection 129 side. At this time, the rotor locking portion 99 of the movable contact piece 90 is in the raised position, the upper surface of the movable contact mounting portion 95 is in contact with the movable contact piece abutting portion 135 of the operating body 110, and the movable contact 97 is the fixed contact 77. The distance between the terminal portions 61 and 71 is off. That is, at this time, the rotor 80 is urged in the right rotation direction around the locking projection piece 89, and the movable contact piece 90 is urged in the left rotation direction around the rotor locking portion 99. At this time, the cam engaging portion 153 of the connecting pin 151 is located at the non-locking position a1 (see FIG. 2) shown in FIG.

  Next, when the operation lever 111 is moved in the left direction (arrow A1 direction) shown in FIG. 6, the pressing portion 85a is pressed against the side surface on the pressing projection 129 side, so that the rotor 80 is elastically pressed by the compression spring 100. Rotate counterclockwise around the locking projection piece 89 against the force, whereby the position of the rotor locking portion 99 of the movable contact piece 90 is lowered. In the contact piece 90, the direction of the urging force by the compression spring 100 is converted from the left rotation direction to the right rotation direction around the rotor locking portion 99, whereby the movable contact piece 90 rotates to the right to move the movable contact piece. While the contact with the contact portion 135 is released, the movable contact 97 contacts the fixed contact 77, and the switch is turned on by a snap action. When the operating body 110 is further moved in the left direction A1, the direction of the urging force applied to the rotor 80 by the compression spring 100 is also changed from the right rotation direction to the left rotation direction, and at that moment, the rotor 80 automatically rotates counterclockwise. The state shown in FIG. 7 is obtained, and this state is stably maintained. At this time, since the cam engaging portion 153 of the connecting pin 151 is at the lock position a3 (see FIG. 2) shown in FIG. 2, the operating body 110 is held at this position.

  Next, when the operating lever 111 is slightly moved in the left direction (arrow A1 direction) shown in FIG. 7, the cam engaging portion 153 of the connecting pin 151 shown in FIG. 2 moves out of the lock position a3 and moves to the position a4. When the pressing of the operating lever 111 is released, the operating body 110 starts to move in the right direction (arrow A2 direction) shown in FIG. 7 by the elastic force of the elastic spring 190, and the pressing portion 85a of the rotor 80 is operated by the operating body. 110 is pressed by the side surface of the pressing portion insertion portion 133 on the pressing protrusion 131 side and rotates clockwise, the position of the rotor locking portion 99 of the movable contact piece 90 rises and rises above a predetermined position. The direction of the urging force of the compression spring 100 with respect to the rotor 80 is converted from the left rotation direction to the right rotation direction, and substantially simultaneously, the direction of the urging force of the compression spring 100 with respect to the movable contact piece 90 is converted from the right rotation direction to the left rotation direction. This Movable contact piece 90 returns to the state shown in FIG. 6 by spaced apart movable contact 97 from the fixed contact 77, the switch is turned off at the snap action. At this time, the cam engaging portion 153 of the connecting pin 151 returns to the original non-lock position a1.

  As described above, the push lock switch 1-1 includes the first and second switch cases 10 and 210, the operating body 110 slidably accommodated in the first and second switch cases 10 and 210, and the operation. The body 110 is installed in the first and second switch cases 10 and 210 in the slide movement direction A, and the spring 110 is installed in the first and second switch cases 10 and 210. The switch mechanism 50 in which the contacts (the fixed contact 77 and the movable contact 97) are controlled to open and close and the first and second switch cases 10 and 210 are installed to resist the elastic force of the elastic spring 190. And a lock mechanism 150 that holds the lock at the locked position a3 that is pressed and moves and automatically returns to the unlocked position a1 when pressed again. There.

  Here, the switch mechanism 50 has a common fixed terminal piece 60 fixed to the first switch case 10, a fixed terminal piece 70 fixed to the first switch case 10 and having a fixed contact 77, and the common fixed terminal piece 60. A rotor 80 that is rotatably engaged and rotationally driven by the movement of the operating body 110, a movable contact piece 90 that is rotatably engaged with the rotor 80 and has a movable contact 97, and a movable contact By projecting between the piece 90 and the common fixed terminal piece 60, the engagement state between the common fixed terminal piece 60, the rotor 80, and the movable contact piece 90 is maintained, and at the same time, the movable contact piece 90 according to the rotational position of the rotor 80. The movable contact 97 and the compression spring 100 for turning on or off between the fixed contact 77 of the fixed terminal piece 70 are provided.

  Further, the lock mechanism 150 pivotally supports one end of a rod-like connecting pin 151 having both end portions bent at substantially right angles to the first switch case 10 and the other end of the connecting pin 151 to the operating body 110. By inserting and engaging in the provided cam groove mechanism 125 and changing the engagement position in the cam groove mechanism 125 in accordance with the slide movement position of the operation body 110, the operation body 110 is moved into its locked position and unlocked position. It has a structure to move to.

  FIG. 9 is a perspective view showing an example in which the push lock switch 1-1 is used as a power switch of a display apparatus 300 which is an electronic device. As shown in FIG. 9, the display device 300 has a substantially flat rectangular shape and is provided with a display unit 301 made of liquid crystal, plasma, or the like on one surface, for example, as a display of a television, a personal computer, or other various electronic devices. It is what is used. The push lock switch 1-1 is installed in a portion of the outer peripheral side 303 extending in the vertical direction among the outer peripheral sides surrounding the outer periphery of the display device 300. A substantially rectangular opening 305 is provided on the outer peripheral side 303 of the display device 300, and an operation knob 250 attached to the operation lever 111 of the push lock switch 1-1 installed on the inner side of the outer peripheral side 303. The opening 305 is exposed to the outside.

  FIG. 10 is an enlarged schematic cross-sectional view taken along line EE in FIG. As shown in the figure, the push lock switch 1-1 is installed inside the outer case 307 so that the sliding movement direction A of the operating body 110 faces the inner surface of the outer case 307 of the display device 300. The operation knob 250 attached to the operation lever 111 is exposed from the opening 305 provided in the exterior case 307. More specifically, the operation knob 250 is installed so that the pressing direction C thereof faces downward (the same direction as the sliding movement direction A and presses against the spring force of the spring spring 190). . The push lock switch 1-1 has a surface projecting from the terminal portions 61 and 71 placed on the surface of the circuit board 270, and the terminal portions 61 and 71 are electrically and mechanically formed on a circuit pattern provided on the circuit board 270. Therefore, the surface of the circuit board 270 faces the direction along the inner surface of the exterior case 307. Therefore, compared with the case of the conventional example shown in FIG. 17, the push lock switch 1-1 and the circuit board 270 to which the push lock switch 1-1 is attached do not protrude greatly toward the inner side of the outer case 307. The installation space of the lock switch 1-1 can be substantially reduced, the external dimensions of the display device 300 can be reduced, and the display unit 301 can be arranged near the outer periphery of the outer case 307. become. When the push lock switch 1-1 is used as a power switch, its on / off operation and a good operation feeling are required. However, the length of the push lock switch 1-1 in the longitudinal direction may be kept long. Since the length extends along the inner surface of the outer case 307, it does not hinder the installation of other components.

  As shown in FIGS. 9 and 10, the upper surface 250 a of the operation knob 250 is an inclined surface whose height increases in the pressing direction C. In other words, the operation knob 250 is formed in a shape that increases its height in the pressing direction C. The highest portion of the upper surface 250a, that is, the outer surface of the outer case 307 at the front position where the operation knob 250 moves by pressing has substantially the same height as the upper surface 250a of the operation knob 250. A reverse-direction press preventing portion 309 is provided so as to protrude. The reverse-direction press preventing portion 309 and the upper surface 250a of the operation knob 250 adjacent to the reverse-direction press preventing portion 309 have substantially the same height (in the example shown, the reverse-direction press preventing portion 309 is slightly higher) and the reverse-direction press preventing portion 309. The gap L1 between the (or opening 305) and the adjacent operation knob 250 is a narrow gap dimension that is slightly larger than the dimension that allows the switch to be turned on and off by sliding movement of the operation knob 250 in the pressing direction C (with a finger between them). It is a gap dimension that does not enter). That is, in the case of this embodiment, the reverse-direction press preventing portion 309 is provided so that the height thereof is substantially the same as the height of the upper surface 250a of the adjacent operation knob 250, and at the same time, the gap L1 between the two is narrowed and the finger is placed between them. By preventing the operation knob 250 from entering, between the operation knob 250 and the front outer case 307 where the operation knob 250 is pressed against the spring force of the spring spring 190 and the operation knob 250, the operation knob 250 is set in the pressing direction. Is a finger locking prevention structure 311 that prevents the finger from being locked when pressed in the opposite direction.

  Then, as shown in FIG. 10, when the operation knob 250 is pressed in the downward direction C with the finger 400 indicated by the solid line, the operation knob 250 moves from the unlocked position shown in FIG. 10 to the locked position shown in FIG. The lock is held at the lever lock position, and the lock is released by pressing again in the downward direction C, and automatically returns to the unlock position shown in FIG. That is, as described above, the push lock switch 1-1 stops at each of the unlocked position and the locked position, and the power of the display apparatus 300 can be turned on / off. That is, the operation knob 250 has a structure that can be operated only by pressing in one direction (downward direction C). Since the upper surface 250a of the operation knob 250 is an inclined surface that increases in height in the downward direction, the finger 400 touching the upper surface 250a can be easily pressed in the downward direction C.

  On the other hand, even if an attempt is made to press the operation knob 250 upward with the finger 400 (erroneous operation), the upper surface 250a of the operation knob 250 is an inclined surface whose height is lowered upward, so that the finger 400 presses upward. 10 and 11, even if an attempt is made to push up the lower end portion of the operation knob 250 like the finger 400 indicated by a dotted line in FIG. 10 and FIG. Since the gap L1 between the direction press preventing portions 309 is narrow, the finger 400 does not enter this portion, and it is difficult to push the operation knob 250 upward from these reasons. Therefore, it is possible to prevent the operation knob 250 from being pressed in the reverse direction (erroneous operation), and to prevent damage caused by applying an excessive force to the push lock switch 1-1. By the way, when the operation knob 250 is moved in the forward direction (downward direction C), the first switch case 10 and the operation body 110 are in contact with each other so that the movement can be surely stopped. Since only the part of the lock mechanism 150 (the connecting pin 151 and the cam groove mechanism 125) is stopped when the operation knob 250 is moved in the erroneous operation direction), its strength is weak. For this reason, application of force in the reverse direction to the operation knob 250 causes major damage to the push lock switch 1-1 due to deformation of the connecting pin 151 or the like, but the present invention has such a problem as described above. It is surely prevented. Further, the operation knob 250 shown in FIG. 10 can be pressed only in one direction (it is difficult to press), and therefore, the “from the user pressing the operation knob 250 from the opposite direction does not move and the switch does not operate. Can be prevented from occurring (a claim that misuses misuse as regular use and claims not to move).

  FIG. 12 is a schematic enlarged cross-sectional view showing another example of a structure for attaching the push lock switch 1-1 to the display device 300, and shows a cross-section of the same portion as in FIG. In the figure, the same or corresponding parts as those shown in FIG. 10 are denoted by the same reference numerals, and detailed description thereof is omitted. In this mounting structure, the difference from the mounting structure shown in FIG. 10 is that the reverse pressure prevention portion 309 protruding outward from the outer case 307 is omitted, and the height dimension (thickness dimension) of the operation knob 250 is entirely set. The height of the lower end of the outer case 307 is made substantially the same as (or slightly lower than the outer surface of) the outer case 307, and the outer surface of the outer case 307 above the operation knob 250 is directed toward the operation knob 250. The point is that the inclined surface 307a is made thinner (toward the opening 305). Also in the case of this mounting structure, the outer surface of the lower portion of the opening 305 of the outer case 307 and the upper surface 250a of the operation knob 250 adjacent thereto are substantially the same height (in the illustrated example, the outer surface of the outer case 307 The clearance L1 between the lower side of the opening 305 of the exterior case 307 and the operation knob 250 adjacent thereto is larger than the dimension that allows the switch to be turned on / off by sliding movement of the operation knob 250 in the pressing direction C. The gap size is a little larger (a gap size that does not allow a finger to enter between them). That is, in the case of this embodiment, the height (outer surface) of the lower portion of the opening 305 of the exterior case 307 is made substantially the same as the height of the upper surface 250a of the adjacent operation knob 250, and at the same time, the gap L1 between them is narrowed. By preventing the finger from entering between them, the operation knob 250 is moved between the front outer case 307 and the operation knob 250 where the operation knob 250 moves by pressing against the elastic force of the spring spring 190. The finger locking prevention structure 311 prevents the finger from being locked when pressed in the direction opposite to the pressing direction.

  Then, as shown in FIG. 12, when the operation knob 250 is pressed in the downward direction C with the finger 400 indicated by the solid line, the push lock switch 1-1 is in the on position and the off position as described above. The display device 300 can be turned on and off. Since the upper surface 250a of the operation knob 250 is an inclined surface that increases in height in the downward direction, the finger 400 touching the upper surface 250a can be easily pressed in the downward direction C. Since the outer case 307 is also provided with the inclined surface 307a, the finger 400 can be more easily guided to the upper surface 250a of the operation knob 250.

  On the other hand, as shown by the dotted line, even if the finger 400 is used to press the operation knob 250 upward, the upper surface 250a of the operation knob 250 is an inclined surface 250a whose height is lowered upward, so that the finger 400 moves upward. Is difficult, and even if an attempt is made to push up the lower end side of the operation knob 250 like a finger 400 indicated by a dotted line in FIG. 12, the gap L1 between the operation knob 250 and the outer case 307 is narrow, so It is difficult to push the operation knob 250 upward without the finger 400 entering. Accordingly, it is possible to prevent the operation knob 250 from being pressed in the reverse direction, and to prevent damage caused by applying an excessive force to the push lock switch 1-1. For example, the same effects as described in FIGS. Have

  FIGS. 13 and 14 are enlarged schematic cross-sectional views showing a structure for mounting the push lock switch 1-1 to the display device 300 using the operation knob 250 having another shape, and a cross-section of the same portion as in FIG. Is shown. In both figures, the same or corresponding parts as those shown in FIG. 10 are designated by the same reference numerals, and detailed description thereof is omitted. The operation knob 250 shown in FIG. 13 is formed in a staircase shape whose upper surface 250a increases in height in the pressing direction C. Also in the case of the operation knob 250, the reverse direction press preventing portion 309 and the upper surface 250a of the operation knob 250 adjacent thereto are made substantially the same height, and the reverse direction press preventing portion 309 and the operation knob 250 adjacent thereto are also provided. The gap L1 is a narrow gap dimension (a gap dimension that does not allow a finger to enter between them) that is slightly larger than a dimension that allows the switch to be turned on and off by sliding the operation knob 250 in the pressing direction C. Even if comprised in this way, the same effect as shown in FIG. 10 will be produced.

  On the other hand, the operation knob 250 shown in FIG. 14 has a flat surface whose upper surface 250a is substantially the same height as the upper surface of the reverse-direction pressing prevention portion 309, and is opposite to the surface provided with the finger lock prevention structure 311 of the operation knob 250. A finger locking portion 255 that protrudes in the direction opposite to the pressing direction C is provided in the vicinity of the upper end of the side surface (upper surface in FIG. 14). Of course, at the same time, the gap L1 between the reverse-direction pressing preventing portion 309 and the operation knob 250 adjacent thereto is narrower than the dimension in which the switch can be turned on and off by sliding movement of the operation knob 250 in the pressing direction C. The gap dimension is such that no finger can enter the Even if comprised in this way, the same effect as shown in FIG. 10 will be produced.

[Second Embodiment]
FIG. 15 is a schematic cross-sectional view of the push lock switch 1-2 according to the second embodiment of the present invention, and FIG. 16 is a plan view of the push lock switch 1-2 (with the second switch case 210 removed). In the push lock switch 1-2 shown in these drawings, the same or corresponding parts as those in the push lock switch 1-1 shown in FIGS. Note that matters other than those described below are the same as those in the embodiment shown in FIGS.

  Also in the push lock switch 1-2, the switch mechanism 50, the operating body 110, and the lock mechanism 150 are accommodated in the first switch case 10 in the same manner as the push lock switch 1-1, and the switch mechanism 50 is accommodated thereon. A second switch case 210 is attached, and a bullet mechanism (hereinafter referred to as “bounce spring”) 190 is housed inside an operating body 110 that protrudes outside the first switch case 10.

  The first switch case 10 of the push lock switch 1-2 is not provided with the separation wall 13 as in the first embodiment, the switch mechanism installation chamber 15 is installed in the storage portion 11, and one end portion of the storage chamber 11 is provided. A lock mechanism installation portion 18 is provided at a position (lined in the switch mechanism installation chamber 15 approximately in series in the slide movement direction A), and the same switch mechanism 50 as that of the first embodiment is installed in the switch mechanism installation chamber 15. The installation portion 18 is configured by providing the pin attachment support portion 23 and the pin attachment portion 25 provided in the first embodiment.

  Similarly to the first embodiment, the operation body 110 is formed in a substantially rectangular shape by integrally molding synthetic resin, and the outer dimensions thereof are completely stored in the storage portion 11 of the first switch case 10. The outer dimensions are formed so as to be slidable in the sliding direction A. Further, a columnar operation lever 111 that protrudes upward (that is, protrudes in a direction intersecting the sliding movement direction A of the operation body 110) is provided on the upper surface of the operation body 110, and a switch mechanism is provided on the lower surface side thereof. A storage portion 119 is provided. The operation body 110 is different from the operation body 110 of the first embodiment in that the lock and impact mechanism storage section 121 installed in parallel to the switch mechanism storage section 119 in the first embodiment is replaced with a switch mechanism storage section 119. It is a point installed at a position lined up substantially in series in the slide movement direction A. As in the first embodiment, a cam mechanism forming portion 123 is provided at one end of the lock and bullet mechanism housing portion 121, and a cam groove mechanism 125 is provided on the upper surface thereof. The lock and bullet mechanism housing portion 121 is formed to have a size for inserting the pin mounting support portion 23 of the first switch case 10, and the cam groove mechanism 125 and the connecting pin 151 constitute the lock mechanism 150 in the first way. This is the same as the embodiment. Similarly to the first embodiment, a pair of pressing protrusions 129, 131, a pressing portion insertion portion 133, and a movable contact piece abutting portion 135 are provided on the opposite left and right side surfaces in the switch mechanism storage portion 119. It is.

  The elastic spring 190 is inserted into the lock and elastic mechanism storage part 121 while being compressed by a predetermined size, and the side surface of the pin mounting support part 23 of the first switch case 10 and the lock of the operation body 110 and the elastic mechanism storage. A resilient force in the right direction shown in FIG. 15 is always applied to the operating body 110 by bulleting between the inner peripheral surfaces of the portion 121.

  Similarly to the first embodiment, the second switch case 210 is formed by molding a synthetic resin into a substantially rectangular flat plate shape, and its outer dimension is substantially the same as the outer dimension of the first switch case 10. In addition, a lever insertion portion 211 that slidably penetrates the operation lever 111 of the operation body 110 is provided therein, and a substantially T-shaped locking piece 213 is also provided. In other words, the lever insertion portion 211 is provided on one of the outer peripheral surfaces parallel to the slide movement direction A of the switch case formed by the first and second switch cases 10 and 210. The second switch case 210 is attached so as to cover the upper surface of the first switch case 10, and at that time, the operation lever 111 is inserted into the lever insertion portion 211.

  Then, when the operating lever 111 is moved in the left direction (arrow A1 direction) shown in FIG. 15 from the switch-off state shown by the solid line in FIG. 15, the movable contact 97 is moved by the snap action as in the first embodiment. The switch contacts with the fixed contact 77 and the operating body 110 is locked at this position by the lock mechanism 150. When the operation lever 111 is slightly moved in the left direction (arrow A1 direction) shown in FIG. 15 again, the lock is released, and the operation body 110 is moved rightward as shown in FIG. 15 by the elastic force of the elastic spring 190. As a result, the movable contact 97 is separated from the fixed contact 77 by the snap action, and the switch is turned off.

  Also in the case of the push lock switch 1-2, the operating body 110 is provided with an operating lever 111 that protrudes in a direction intersecting the sliding movement direction A of the operating body 110. Since it protrudes outside from the lever insertion portion 211 provided on the outer peripheral surface parallel to the slide movement direction A of the second switch cases 10 and 210, the push lock is applied for the same reason as described in the push lock switch 1-1. The installation space when the switch 1-2 is installed inside the outer case of the electronic device can be substantially reduced, and the electronic device can be reduced in size. At that time, it is not necessary to shorten the pressing stroke of the push lock switch 1-2. Therefore, by making the stroke sufficiently long, a reliable on / off operation and a good operating feeling can be obtained, and it is particularly suitable for use as a power switch. Further, as shown in FIGS. 9 to 14, the operation knob 250 is pressed between the operation knob 250 and the front outer case 300 in which the operation knob 250 presses and moves against the spring force of the spring spring 190. If the finger lock prevention structure 311 for preventing the finger from being locked when pressed in the direction opposite to the direction is provided, the operation knob 250 is prevented from being pressed in the reverse direction, and the push lock switch 1-2 is not forced. Can be prevented from being damaged by the application of excessive force.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea described in the claims and the specification and drawings. Is possible. It should be noted that any shape, structure, and material not directly described in the specification and drawings are within the scope of the technical idea of the present invention as long as the effects and advantages of the present invention are exhibited. For example, in the above-described embodiment, the display apparatus 300 has been described as an example of the electronic device, but it is needless to say that other various electronic devices may be used. In the above embodiment, the case where the push lock switches 1-1 and 1-2 are used as power switches has been described. However, the push lock switches 1-1 and 1-2 may be used as switches for various other purposes. Further, the structure of the switch mechanism, the lock mechanism, and the bullet mechanism is not limited to the above-described embodiment, and may be a switch mechanism, a lock mechanism, and a bullet mechanism that have other various structures. In the above embodiment, the operation lever 111 and the operation knob 250 are configured as separate parts, but may be configured as an integral part.

It is a perspective view of push lock switch 1-1. It is a disassembled perspective view (parts on the upper side) of the push lock switch 1-1. It is a disassembled perspective view (parts on the lower side) of the push lock switch 1-1. It is the perspective view which looked at the 1st switch case 10 from the lower surface side. It is the perspective view which looked at the 2nd switch case 210 from the lower surface side. It is operation | movement explanatory drawing of the push lock switch 1-1. It is operation | movement explanatory drawing of the push lock switch 1-1. It is operation | movement explanatory drawing of the push lock switch 1-1. 5 is a perspective view showing an example in which the push lock switch 1-1 is used as a power switch of the display apparatus 300. FIG. FIG. 10 is a schematic enlarged cross-sectional view (non-locking position) of the EE line portion of FIG. 9. FIG. 10 is an enlarged schematic cross-sectional view (locked position) of the EE line portion of FIG. 9. FIG. 10 is an enlarged schematic cross-sectional view showing another example of a structure for attaching the push lock switch 1-1 to the display device 300. It is a schematic sectional enlarged view which shows the attachment structure to the display apparatus 300 of the push lock switch 1-1 using the operation knob 250 of another shape. It is a schematic sectional enlarged view which shows the attachment structure to the display apparatus 300 of the push lock switch 1-1 using the operation knob 250 of another shape. It is a schematic sectional drawing of the push lock switch 1-2. It is a top view (however, the state which removed the 2nd switch case 210) of the push lock switch 1-2. It is a schematic sectional drawing which shows the attachment structure to the exterior case 510 of the conventional push lock switch 500. FIG.

Explanation of symbols

1-1 Push-lock switch 10 First switch case (switch case)
50 Switch mechanism 110 Operation body 111 Operation lever A Slide moving direction 150 Lock mechanism 190 Bounce spring (bounce mechanism)
210 Second switch case (switch case)
211 Lever insertion part 230 Mounting plate 250 Operation knob 255 Finger locking part 300 Display device (electronic device)
305 Opening 307 Exterior case 309 Reverse direction press prevention part 311 Finger locking prevention structure 1-2 Push lock switch

Claims (5)

A switch case,
An operating body that is slidably stored in the switch case;
A bullet mechanism that bounces the operating body in the slide movement direction in the switch case;
A switch mechanism that is installed in a switch case and whose contact is controlled to open and close by sliding movement of the operating body;
It is installed in the switch case, and the operating body is locked and held at the locked position where the operating body is pressed and moved against the elastic force of the elastic mechanism, and the lock is released by pressing again to unlock the operating position. And a locking mechanism that automatically returns to
The operating body is provided with an operating lever that protrudes in a direction that intersects the sliding movement direction of the operating body, and this operating lever is inserted into the lever case provided on the outer peripheral surface parallel to the sliding movement direction of the switch case. Push-lock switch characterized by protruding outward from the part.   The push lock switch according to claim 1 is installed inside the outer case so that the sliding movement direction of the operating body faces a direction along the inner surface of the outer case of the electronic device to which the push lock switch is attached. An electronic device mounting structure for a push lock switch, wherein an operation knob attached to a lever is exposed from an opening provided in the outer case. In the electronic device mounting structure of the push lock switch according to claim 2,
The operation knob is prevented from being pressed in the direction opposite to the pressing direction between the operation knob and the front outer case where the operation knob presses and moves against the elastic force of the elastic mechanism. Therefore, the electronic device mounting structure for a push lock switch is characterized by having a finger locking prevention structure for preventing finger locking. In the electronic device mounting structure of the push lock switch according to claim 3,
The push knob is characterized in that the operation knob is formed in a shape that increases its height in a direction in which the operation knob is pressed and moved against the resilience of the resilient mechanism. Electronic equipment mounting structure. In the electronic device mounting structure of the push lock switch according to claim 3,
Finger locking that protrudes in a direction opposite to the direction in which the operation knob is pressed against the elastic force of the elastic mechanism on the surface opposite to the surface on which the finger locking prevention structure of the operation knob is provided. An electronic device mounting structure of a push lock switch, characterized in that a portion is provided.

Images