JP3201657B2 - switch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a push-button switch.

[0002]

2. Description of the Related Art Conventionally, as a push-button switch, a push-button switch used for a piano handle switch has been known. As shown in FIGS. 16 to 18, this conventional push-button type switch 5 has a body 5a made of synthetic resin.
And a cover 5b made of synthetic resin, a body is formed, and a body locking hole 10a provided in a body locking leg 10 hanging from a pair of opposing side surfaces of the cover 5b is engaged with a locking projection 9 of the body 5a. Stop and join.

The cover 5b further has locking claws 11a, 11b respectively corresponding to a pair of locking holes 8 formed on the longitudinal sides of both side pieces 2b, 2b of the mounting frame 2 shown in FIG. Are formed integrally with each other, and a space 12 is formed at the back of one of the locking claws 11b so as to obtain a bending allowance formed by a hole vertically penetrating the outer wall of the cover 5b. It can be elastically bent.

On both sides of the body 5a, connection terminal housings 13 and 14 are formed. One connection terminal housing 13 houses a quick connection terminal comprising a common terminal plate 15, a lock spring 16 and a release button 17. The other connection terminal housing 14 has a terminal plate 18, a locking spring 19, and a second connection terminal, which constitute a first connection terminal.
And a release button 2 common to the first and second connection terminal portions.
2 are stored.

An opening / closing body 24 is arranged in contact with and connected to a support plate 15a extending from an end of the common terminal plate 15. An extension piece 18a is provided on the terminal plate 18,
The extension piece 18a extends over the partition wall 14a and extends into the central storage portion 23, and is further close to the wall wall 14a. The extension piece 18a is provided with a fixed contact 25a.

The terminal plate 20 extends into the central storage portion 23 along the inner wall of the body 5a, and its tip is bent along the partition wall of the connection terminal storage portion 13, and the terminal piece 20a is attached to the tip of the bent piece 20a. A fixed contact 25b corresponding to the fixed contact 25a is provided. The opening / closing body 24 is formed of a conductive plate. The opening / closing body 24 is accommodated in the central storage portion 23. It is rotatable around the lower part of the V-shaped recess 27 in a state of being in contact with the support plate 15a.

The movable contacts 29 provided on both upper surfaces of the opening / closing body 24 are fixed to the fixed contacts 25a, 25b in accordance with the rotation.
Contact with and separate from the common connection terminal and the first or second
To turn on and off between the connection terminals. The opening / closing member 24 is driven by a reversing mechanism including a coil spring 30, a reversing handle 31, and a push button handle 32 and a slide cam 33 shown in FIG.

The coil spring 30 is inserted into a cylindrical portion 31a having a lower portion engaged with a spring seat 24a provided on an upper edge of the horizontal piece of the opening / closing body 24 and an upper portion integrally projecting from a lower portion of the reversing handle 31. Then, the opening / closing body 24 is driven to be reversed in accordance with the movement of the reversing handle 31 in both side directions. The reversing handle 31 is inserted into the concave portion 51 from below into a hole 52 opened at the bottom of the concave portion 51 of the cover 5b. Engagement projections 34, 34 which engage with the slide cam 33 project from the upper side of the rectangular parallelepiped portion 31 b of the reversing handle 31.

The push button handle 32 has a square planar shape, and engaging protrusions 36, 36 are formed in vertical engaging grooves 35 formed on the inner wall surfaces on both sides of the rectangular recess 51 of the cover 5b. The return spring 37, which is locked and housed in the recess 51 so as to be movable up and down, is constituted by integrally extending two return spring pieces 37a, 37a extending downward from the flat piece 37b downward. By inserting a projection (not shown) projecting from the lower surface of the push button handle 32 into a hole 37d formed in the flat piece 37b, the projection is attached to the lower surface of the push button handle 32 and the return spring pieces 37a, 37a Is constantly biased upward by elastically contacting the bottom surface of the concave portion 51.

As shown in FIG. 19, the slide cam 33 is made of a thermoplastic resin such as polyacetal, which has a high elasticity, and is formed in a substantially rectangular shape. And a pair of spring pieces 33a, 33a integrally projecting in a C-shape at the center of another side portion, between the tips of the spring pieces 33a, 33a. A projection 32A (FIG. 21A) formed on the lower surface of the push button handle 32 is inserted, the slide cam 33 is slidably mounted on the lower surface of the push button handle 32, and the slide pieces 33a, 33a are resilient by the elasticity of the spring pieces 33a. It provides a return force in the moving direction.

The push-button switch 5 having the above-described structure is similar to that shown in FIG.
Cover 5 from below into the window hole 6 of the metal mounting frame 2 shown in FIG.
When the lower end of one side piece 2b of the mounting frame 2 is brought into contact with the upper surface of the periphery of the cover 5b while the lower end of the side piece 2b is in contact with the upper surface of the cover 5b, the engaging claw 11a on the fulcrum side is provided. Engages with the locking hole 8, and the lower end of the vertical side of the other side piece 2 b presses the locking claw 11 b inward by the bending allowance of the space 12 and the elastic force of the material of the cover 5 b to lock the locking claw 11 b inward. 11b, the locking claw 11b is engaged with the locking hole 8. Locking claw 1
The push button switch 5 locked and fixed by engaging 1a and 11b in the locking holes 8 and 8, respectively, causes the push button handle 32 to protrude from the window hole 6 of the mounting frame 2.

The push button switch 5 mounted on the mounting frame 2 is provided with a piano handle 43. As shown in FIG. 19, the piano handle 43 rotatably locks a fulcrum rib 43a provided on one side edge in a concave portion 54 on one side of the cover 5a, and is formed on the other side edge of the piano handle 43. The locking foot 43b is mounted in a locking space 47 on the other side of the cover 5a so as to be vertically movable.

By pressing the other side of the piano handle 43, the piano handle 43 is pivotally movable about the fulcrum rib 43a. By pushing and rotating the piano handle 43, the push button handle 32 is pushed. It can be driven. Next, the operation of the piano handle switch will be described with reference to FIGS. 16, 17, and 21 to 24.

First, from the state shown in FIG.
When the button 3 is pushed down, as shown in FIGS. 21 to 23, the push button handle 32 is pushed down against the return spring piece 37a,
When the push button handle 32 is depressed, the slide cam 33 descends, and the reversing handle in which the vicinity of the base of the inner inclined surface of the engaging cam body 38 at one end (left side in FIG. 22B) of the slide cam 33 is inclined. 31 (FIG. 22)
When the push button handle 32 is further pressed against the engaging projection 34 (left side in (b)), the engaging projection 34 is pushed down along the inner inclined surface of the engaging cam body 38, and the reversing handle 31 is rotated in reverse.

In this case, as the reversing handle 31 is inverted by pushing down the push button handle 32, the engaging projection 34
23 and counterclockwise as shown in FIG. 23 (b). With this rotation, the engaging cam body 38 is opposed to the spring piece 33a by the engaging projection 34 on the left side as shown in FIG. 23 (b). In the middle of the inversion of the inversion handle 32 and the inversion handle 3
2 is rotated to a position beyond the horizontal and the other engaging projection 3
Since the slide cam 33 is slid to the left even when 4 is raised, the engagement cam body 38 at the other end (right side in FIG. 23B) is located on the left side of the engagement protrusion 34 on the right side. As a result, the rotation of the reversing handle 31 is not hindered.

Here, the engaging projection 34 of the reversing handle 31
When the engaging projection 34 is rotated upward, the engaging cam body 38 located on the inner side can escape on the inner inclined surface so that the engaging cam body 38 does not interfere when the engaging protrusion 34 rotates upward. Also,
As described above, when the reversing handle 31 is rotated in reverse by depressing the push button handle 32, the slide cam 33 is rotated.
By inverting the reversing handle 31 while sliding the slide cam 33 against the spring piece 33a, the reversing handle 31 and the slide cam 33 can smoothly rotate the reversing handle 31 without receiving sliding frictional resistance. it can.

When the reversing handle 31 is reversingly rotated as described above, the coil spring 30 reciprocates and swings, the opening / closing body 24 is reversed, and the movable contact 29 is separated from the one fixed contact 25a with which the movable contact 29 is in contact. , Comes into contact with the other fixed contact 25b. After the reversal, when the pressing force of the piano handle 43 is released, the return spring piece 37a of the return spring 37 is released.
As a result, the push button handle 32 is pushed up, and the piano handle 43 also returns to the original state. At the same time, the slide cam 33 slides and returns to the central portion by the spring force of the spring piece 33a, as shown in FIG. Piano handle 4 in this state
3 is pressed down, the opening / closing body 24 is operated in the same manner as described above.
Can be inverted. After the inversion, if the pressing force of the piano handle 43 is released, the state returns to the state shown in FIG.

That is, FIG. 25 shows a state before the piano handle 43 is operated, and the movable contact 29 of the opening / closing body 24 is in contact with the fixed contact 25b at an angle. Then, by pushing the piano handle 43 and passing the opening / closing body 24 in the neutral position in FIG. 26, as shown in FIG. 27, the opening / closing body 24 is reversed and comes into contact with the fixed contact 25a. Next, when the pressing operation on the piano handle 43 is released, the piano handle 43 returns as shown in FIG. 28 as described above.

By the way, in the above-mentioned conventional example, an example is shown in which the piano handle 43 is attached to the push-button switch 5, but when the piano handle 43 is not attached, the switch 5 can be used as the push-button switch 5.

[0020]

The push-button type switch 5 having the above-mentioned structure can be mounted on the outer surface regardless of whether the piano handle 43 is mounted or the push-button type switch 5 without using the piano handle 43. The square pressing operation surface was exposed. By the way, if the pressing operation surface has a square shape, the corner portion of the square shape is too far from the center of the pressing operation surface, and when this portion is pressed with a finger, the balance of the pressing operation is deteriorated, and accurate There is a problem that the operation of the switch is hindered, or the operation balance of the entire switch is deteriorated due to long-term use. Further, since the shape of the pressing operation surface is conventionally a square, the appearance is also monotonous. In addition, the locking projections 36, 36 of the push button handle 32 are locked in the vertical locking grooves 35 formed on the inner wall surfaces on both sides of the rectangular recess 51 of the conventional cover 5b, so that the recess 51 can move vertically. Because it is stored in
Inevitably, the size of the cover 5b becomes large,
This hindered miniaturization. Further, conventionally, two return spring pieces 37 which are expanded downward from the flat piece 37b are used.
Since the return force of the push button handle 32 is given by the return spring 37 formed by a leaf spring formed by integrally extending the a and 37 a downward, the position of the push button handle 32 deviated from the center of the pressing operation surface is adjusted. When the pressing operation is performed, the operation feeling is poor. In particular, when trying to make the operation surface of the operation handle 32 circular in order to improve the appearance, almost the same operation feeling is obtained even if any part of the operation surface is pressed. Did not become able to be. In the related art, the lower surface of the slide cam 33 is supported by the return spring 37. However, since such a slide cam 33 and the return spring 37 are provided, contact opening / closing is displayed in the switch. When the light of the light emitting element is to be displayed outside, it is difficult to display the light of the light emitting element to the outside through the operation handle 32 because the return spring or the like is in the way. Has to be performed at a portion avoiding the operation handle 32.

The present invention has been made in view of the above-mentioned problems of the prior art, and it is an object of the present invention to obtain almost the same operation feeling even if any part of the pressing operation surface is pressed. Another object of the present invention is to provide a switch that can accurately perform a switch operation, has a good appearance, can be miniaturized, and can externally display light of a light emitting element through a push button handle with a simple configuration.

[0022]

In order to solve the above-mentioned problems of the prior art and achieve the object of the present invention, the switch of the present invention comprises a pressing operation surface 32a having a circular surface and exposed to the outside. A push button handle 32, a reversing handle 31 that reverses in response to a linear movement perpendicular to the pressing operation surface 32a of the push button handle 32, and a push button handle interposed between the push button handle 32 and the reversing handle 31. 32
And a coil spring 3 for urging the push button handle 32 in a direction opposite to the direction of the pressing operation.
7A or the like constitutes a reversing mechanism, and an opening / closing member 24 driven by the reversing mechanism to open and close the contacts in the reversing operation is provided
Configure the switch Te, the light-emitting element 200 for displaying a contact switching in the switch 5 is provided, a transparent window 201 provided in the push button handle 32, with a lens 202 for directing light from the light emitting element 200 to the outside retainer Push the handle 107 to the button 107
The lower surface of the slide cam 33 which is mounted inside the push cam handle 32 and the lens 202 is disposed in correspondence with the light transmitting window 201 and is slidably disposed inside the push button handle 32.
7 is supported.

As the light emitting element 200, a neon lamp 200a or a light emitting diode 200b is used.
Further, both ends of the push button handle 32 which is a pressing operation surface 32a having a circular surface and exposed to the outside are covered with covers 5b.
May be configured to be substantially the same as both outer surface portions.

A slide cam 33, a holding plate 107 and a coil spring 37A are provided on the push button handle 32, which is a pressing operation surface 32a having a circular surface and exposed to the outside.
To form a handle block, and the cover 5b
And a cover block incorporating a reversing handle 31 and a coil spring 30 for reversing the reversing handle may be formed.

[0025]

The pressing operation surface 32a exposed to the outside of the push button handle 32 is formed in a circular shape, so that the push button handle 3
2, the distance from the center to the entire outer peripheral portion can be made equal, and there is no corner as in the conventional square pressing operation surface. As a result, operability is poor when the corner is pushed as in the conventional case. It is now possible to solve such a problem. Further, the return of the push button handle 32 is performed by the push button handle 32.
The pressing operation is performed by the coil spring 37A which is urged in the direction opposite to the direction of the pressing operation.
No matter where you press, you can get almost the same operation feeling. Then, a light emitting element 200 for displaying contact opening and closing is provided in the switch, a light transmitting window is provided in the push button handle, and a holding plate 107 provided with a lens 202 for guiding the light of the light emitting element 200 to the outside is provided inside the push button handle 32. , The lens 202 is arranged corresponding to the light-transmitting window, and the lower surface side of the slide cam 33 slidably arranged inside the push button handle 32 is supported by the pressing plate 107, so that the configuration is simple. Light emitting device 200
Can be displayed outside via the push button handle 32.

When the both ends of the push button handle 32, which is a pressing operation surface 32a having a circular surface and exposed to the outside, are substantially the same as both outer surfaces of the cover 5b, the whole can be made compact. become. Further, a slide cam 33 and a holding plate 1 are provided on the push button handle 32 which is a pressing operation surface 32a having a circular surface and exposed to the outside.
07 and the coil spring 37A are combined to form a handle block, and the cover 5b is formed with a cover block incorporating the reversing handle 31 and the reversing handle reversing coil spring 30 to combine the handle block and the cover block. Thus, the assembly can be simplified.

[0027]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 5, the push button type switch 5 includes a body 5a made of synthetic resin and a cover 5 made of synthetic resin.
b and a body locking hole 10a provided in a body locking leg 10 hanging down from a pair of opposing side surfaces of the cover 5b so as to be locked by a locking projection 9 of the body 5a and joined. Has become.

Locking claws 11a and 11b for locking to locking means 110 provided on the metal mounting frame 2 shown in FIG. 15 are integrally formed on both sides of the cover 5b. . The cover 5b has a rectangular shape in a plane, and a hole 52 is opened in the center of the upper surface of the cover 5b.
A pair of arc-shaped walls 105 formed on the upper surface of the cover 5b.
Are formed on the outer surfaces of the cover 5b between the ends of the arc-shaped wall 105, and the guide grooves are formed in the outer surfaces of the cover 5b and open upward and outward. 5c is formed. That is, a part of the circle where the opposing arc-shaped wall 105 is located is located on both outer surfaces of the cover 5b, and a gap is formed between the arc-shaped walls 105 at this portion, and the guide grooves 5c are formed on both outer surfaces of the cover 5b. Thus, the diameter of a circular push button handle 32 described later can be made substantially equal to the width of the cover 5b.

The body 5a houses a terminal plate 100, a contact terminal block 101, a release button 17, a quick connection terminal 17a, and the like. On the support plate 100a of the terminal plate 100, an opening / closing body 24 is contact-connected and arranged. The contact terminal block 101 is provided with a contact 101a, and a printed wiring board block 205 is attached to the upper opening of the body 5a as shown in FIG. 200 are provided. This light emitting element 200 is shown in FIGS.
1, a neon lamp 200a as shown in FIG.
The light emitting diode 200b shown in FIG. An opening 206 is provided in the printed wiring board block 205, and an upper portion of the opening / closing body 24 is located in the opening 206. In the figure, reference numeral 207 denotes a resistor provided in the printed wiring board block 205. FIG. 14 shows an embodiment in which the mounting position of the resistor 207 is different.

The opening / closing body 24 is formed of a conductive plate, and is placed substantially in the center of the body 5a as shown in FIG.
The projections 28 provided at the lower portions on both ends are fitted into the V-shaped recesses 27 provided on the side wall of the body 5a, and the lower edge is formed on the support plate 100a.
Is rotatable about the lower part of the V-shaped recess 27 in the state of contact with the V-shaped recess 27. Then, the contact 104 provided on the upper part of the opening / closing body 24 is brought into contact with and separated from the contact 101a in accordance with the rotation, and the switch 5 is turned on and off.

The opening / closing member 24 is driven by a reversing mechanism including a coil spring 30, a reversing handle 31, a push button handle 32, a slide cam 33 and the like. The lower portion of the coil spring 30 is locked by a spring seat 24 a provided on the upper edge of the opening / closing body 24, and the upper portion is inserted into a tubular portion 31 a integrally projecting from the lower portion of the reversing handle 31, so that the reversing handle 31 The opening / closing body 24 is driven to reverse in accordance with the movement in both side directions.

The reversing handle 31 is inserted into the hole 52 opened in the cover 5b from below, and turns the inverted triangular shaft 31c provided on both sides of the lower tube portion 31a of the reversing handle 31 to the bearing 50 on the inner wall of the cover 5b. It is pivoted freely,
Engagement projections 34, 34 engaged with the slide cam 33 are provided on both upper sides of the rectangular parallelepiped portion 31 b on the upper part of the reversing handle 31.
Is protruding.

The push button handle 32 has a cylindrical shape with a short upper and lower length and a closed upper surface, and the pressing operation surface 3 exposed on the outer surface.
2a is circular. The legs 36a, 36a are suspended downward from two opposing locations on the lower surface of the push button handle 32, and the locking projections 36, 3 are attached to the lower ends of the legs 36a, 36a.
6, the push button handle 32 is vertically slidably fitted into a portion surrounded by the opposing arc-shaped wall 105. The locking projection 36 is provided at the edge of the hole 52 of the cover 5b as shown in FIG.
The push button handle 32 is locked as shown in FIG.
From getting out of the way. A portion of the upper surface of the cover 5b surrounded by the opposing arc-shaped walls 105 is concave in a circular shape.
The coil spring 37A has a cylindrical push button handle 32 whose upper surface is closed.
The coil spring 37 </ b> A applies a spring force in a direction opposite to the operation direction of the push button handle 32 to apply a return force to the push button handle 32. A rectangular moving guide 32b hangs downward from a position shifted by 90 ° in the circumferential direction from the locking projections 36, 36 on the lower surface of the push button handle 32, and the rectangular moving guide 32b is hung down. 32b is slidably fitted in the guide groove 5c on both outer surfaces of the cover 5b.

As shown in FIG. 1, the slide cam 33 is made of a thermoplastic resin having a high elasticity such as polyacetal, and is formed in a substantially rectangular shape. Engaging cam body 3 corresponding to
And a pair of spring pieces 33a, 33a integrally protruding in a C-shape at the center of another side portion. The lower surface of the push button handle 32 is provided between the tips of the spring pieces 33a, 33a. The slide cam 33 is slidably mounted on the lower surface of the push button handle 32 by inserting the formed projection 32A (see FIGS. 3 and 7), and is returned in the anti-sliding direction by the elasticity of the spring pieces 33a, 33a. Empower. In the drawing, reference numeral 107 denotes a press plate, which is attached to the lower surface of the push button handle 32 and supports the slide cam 33 so as not to come off. The press plate 107 has a hole in which the engaging cam body 38 is located. The engaging projection 34 and the engaging cam body 38
So that there is no hindrance to the engagement operation. Presser plate 10
7 is provided with a columnar lens 202 projecting up and down. The upper part of the lens 202 is a push button handle 3
2 is inserted into the hole forming the light transmitting window 201 from below. The holding plate 107 is attached to the push button handle 32 by various fixing methods such as heat fusion or pressure bonding.
FIG. 9 is an exploded perspective view and FIG.
, Slide cam, lens 202 shown as a bottom view
Block B of the push button handle 32 into which the holding plate 107 having
_1, holes 52 the locking projections 36 of the cover 5b of combining the blocks B ₂ of incorporating the cover 5b of the turning handle 31 is fitted a coil spring 30 (i.e. push button handle 32, shown as exploded perspective view in FIG. 10
Can be easily assembled. At this time, the lens 202 provided on the holding plate 107 can be easily assembled.
Is located below the hole 52 through the hole 52 provided in the cover 5b. Then, the lower part of the lens 202 is located immediately above the light emitting element 200 as shown in FIG. Therefore, the light of the light emitting element 200 indicating the opening and closing of the contact is transmitted to the push button handle 32 through the lens 202 provided on the holding plate 107 to the light transmitting window 201.
The light is displayed from the outside to the outside.

Here, the outer surface of the push button handle 32 and the arc-shaped wall 1
5, there is a slight gap as shown in FIG. 5, and when the leg 36a having the locking projection 36 at the lower end is inserted into the hole 52 of the cover 5b, the leg 36a and the locking projection 36 When the width of the push button handle 32 is the same, the vertical movement of the push button handle 32 cannot be performed smoothly unless the locking leg 36a is slightly shorter than the width of the portion of the hole 52 where the leg 36a is inserted. Light leaks from both sides of the portion of the hole 52 into which the leg 36a is inserted, and the outer surface of the push button handle 32 and the arc-shaped wall 1
There is a possibility that light may leak to the outside from the portion indicated by a in FIG. For this reason, in the push button handle 32 shown in FIG. 12, the light leakage prevention ribs 207 are provided on both sides of the locking projection 36 to prevent the light leakage.

The push button switch 5 having the above-described structure is the same as that shown in FIG.
The cover 5b is fitted from below into the window hole 6 of the metal mounting frame 2 shown in FIG. 5 (a), and the locking claw 11a is locked and mounted on the locking means 110 provided on the mounting frame 2. is there. In this case, at least one of the locking means 110 is formed by an elastic spring fitting 110a, so that the locking with the locking claw 11a can be easily performed by the elastic locking. In addition to the push button type switch 5 having the above configuration, an outlet 113 is provided on the mounting frame 2.
3 is attached to the locking means 110 so as to lock the locking claw piece 113a provided on the switch 5 and the outlet 113.
Are mounted in a row. The attachment frame 2 shown in FIG. 15A is attached to furniture, a construction surface, or the like by a screw inserted from a hole 111. A decorative plate 112 is further attached to the attachment frame 2 on the front surface side. FIG.
As shown in (a) and (b), a circular opening 112a is formed in the decorative plate 112, and the circular pressing operation surface 5a of the push button type switch 5 has one circular opening. The outlet portion 113a is fitted into the opening 112a, and the circular outlet head 113b on the surface of the outlet 113 is fitted into the other circular opening 112a.

In the present invention, by pressing the pressing operation surface 32a of the circular push button handle 32 against the spring force of the coil spring 37A or the like, the distance between the push button handle 32 and the reversing handle 31 is increased. The reversing handle 31 is reversed by the action of the slide cam 33 which converts the linear movement of the push button handle 32 into the reversing movement of the reversing handle 31 (the operation is converted to the reversing movement of the reversing handle 31 by the action of the slide cam 33). The operation of the reversing handle 31 is the same as that of the prior art, and the description thereof is omitted.)
The contact 104 of the opening / closing body 24 is brought into contact with and separated from the contact 101a in accordance with the rotation by turning the switch 24 to turn the switch 5 on and off. In this case, since the pressing operation surface 32a exposed to the outside of the push button handle 31 has a circular shape, the distance from the center to the entire outer peripheral portion of the pressing operation surface 32a becomes equal. As a result, it is possible to solve the problem that the operability is deteriorated by pressing the corner as in the related art. Further, since the return of the cylindrical push button handle 32 is performed by the coil spring 37A which urges the push button handle 32 in the opposite direction to the push operation direction, the same applies regardless of where the circular push operation surface 32a is pushed. As a result, a comfortable operation feeling can be obtained, the operability is improved, and a bias force acting on the internal mechanism is eliminated. When the push button handle 32 is pressed by pressing the circular pressing operation surface 32a, the movement guide 32b is slidably fitted in the guide groove 5c, so that the cylindrical push button handle 32 can be smoothly moved without rattling. In this case, since the guide groove 5c is provided on the outer surface of the body of the switch 5 as described above, the width of the body of the switch 5 is circular. The length can be substantially the same as the diameter of the push button handle 32, and the size of the switch 5 can be reduced. This means that the pressing operation surface 32a on the surface of the push button handle 32 that is fitted into the opposing arcuate wall 105 can have a diameter substantially equal to the width of the body of the switch 5, and the switch 5 can be reduced in size. This means that the pressing operation surface 32a can be maximized.

[0038]

As described above, in the present invention, since the pressing operation surface exposed to the outside of the push button handle is formed in a circular shape, the distance from the center to the entire outer peripheral portion of the pressing operation handle can be made equal, and the conventional operation can be achieved. There is no corner as in the case of the square pressing operation surface, and as a result, it is possible to solve the problem that the operability is deteriorated when the corner is pressed as in the conventional case, and the conventional square pressing operation surface is The operability is better than the one. In addition, since the return of the push button handle is performed by a coil spring that urges the push button handle in a direction opposite to the direction of the push operation, almost the same operation feeling can be obtained regardless of where the circular push operation surface is pushed. The operation feeling is good. Further, since the pressing operation surface is circular, the appearance is good and the commercial value can be enhanced. Also,
A light-emitting element that indicates contact opening and closing is provided in the switch, a light-transmitting window is provided in the push button handle, and a holding plate with a lens for guiding the light of the light-emitting element to the outside is mounted inside the push button handle to transmit the lens. The lower surface side of the slide cam, which is arranged corresponding to the window and slidably arranged inside the push button handle, is supported by the holding plate, so the lens and the holding plate are the same member, and the number of parts is reduced. In addition to simplifying the assembly, the provision of the lens on the holding plate prevents the holding plate from becoming an obstacle when displaying light, and the light of the light emitting element can be externally transmitted via the push button handle with a simple configuration. It can be displayed.

Further, when the both ends of the push button handle, which is a pressing operation surface having a circular surface and exposed to the outside, are substantially the same as the outer surfaces of the cover, the whole can be made compact. In addition, a handle block is formed by incorporating a slide cam, a holding plate, and a coil spring on the push button handle, which is a pressing operation surface that is exposed to the outside and has a circular shape. By forming a cover block incorporating the above coil spring, the handle block and the cover block can be combined to simplify assembly.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of the present invention.

FIG. 2 is an overall perspective view of the same.

FIG. 3 is a sectional view of the same.

FIG. 4 is a front view of the same.

FIG. 5 is a plan view of the same.

FIG. 6 is a plan view of a body portion before a printed wiring board block is attached thereto.

FIG. 7 is a bottom view of the push button handle.

FIG. 8 is a bottom view of the reversing handle.

FIG. 9 is an exploded perspective view of a block of the push button handle.

FIG. 10 is an exploded perspective view of a block of the cover according to the embodiment.

FIG. 11 is a plan view showing a state in which a printed wiring board block is attached to the above-mentioned body.

FIGS. 12A and 12B show another embodiment of the push button handle used in the embodiment, in which FIG. 12A is a bottom view, FIG. 12B is a partially broken side view, FIG. 12C is a plan view, and FIG. () Is a front view, and (e) is a cross-sectional view.

FIG. 13 is an overall exploded perspective view showing another example of the light emitting device of the present invention.

FIG. 14 is a perspective view showing another example of the printed wiring board block of the above.

FIG. 15A is an exploded perspective view of the mounting frame, the switch, the outlet, and the decorative cover, and FIG. 15B is a perspective view of the mounted state.

FIG. 16 is a sectional view of a conventional push button switch.

FIG. 17 is a sectional view of a conventional push button switch.

FIG. 18 is an exploded perspective view of a part of the conventional example.

FIG. 19 is an exploded perspective view of another portion of the conventional example.

FIG. 20 is a perspective view of the mounting frame of the above.

FIGS. 21 (a) and (b) are explanatory diagrams of the operation of the conventional example.

FIGS. 22 (a) and 22 (b) are explanatory diagrams of the operation of the conventional example.

FIGS. 23 (a) and (b) are explanatory diagrams of the operation of the conventional example.

FIGS. 24A and 24B are explanatory diagrams of the operation of the conventional example.

FIG. 25 is an explanatory diagram of a conventional example.

FIG. 26 is an explanatory diagram of a conventional example.

FIG. 27 is an explanatory diagram of a conventional example.

FIG. 28 is an explanatory diagram of a conventional example.

[Explanation of symbols]

 Reference Signs List 5 push button switch 5c guide groove portion 24 opening / closing body 31 reversing handle 32 push button handle 32a pressing operation surface 32b moving guide 33 slide cam 37A coil spring 107 holding plate 200 light emitting element 200a neon lamp 200b light emitting diode 201 light transmitting window 202 lens

Continuing from the front page (72) Inventor Hideaki Iwai 2856 Shiratsuka-cho, Tsu-shi, Mie Asahi Denki Kogyo Co., Ltd. Japanese Unexamined Patent Publication (Kokai) No. 4-196021 (JP, A) Japanese Unexamined Patent Publication (Kokai) No. 2-288031 (JP, A) Japanese Unexamined Patent Publication (Kokai) No. 4-126320 (JP, A) Japanese Utility Model Application No. Sho 62-79326 (JP, U) Japanese Utility Model Application No. Sho 61-145431 (JP, U) JP-A-4-51730 (JP, U) JP-A-40-24 (JP, Y1) JP-A 41-500 (JP, Y1) (58) Fields surveyed (Int. Cl. ⁷⁾ H01H 13/60 H01H 21/00 320

Claims (5)

(57) [Claims] 1. A push button handle having a circular shape and serving as a pressing operation surface exposed to the outside, a reversing handle that reverses in response to a linear movement perpendicular to the pressing operation surface of the push button handle, and a push button. A slide cam interposed between the handle and the reversing handle to convert the linear movement of the push button handle into a reversing motion of the reversing handle, a coil spring for urging the push button handle in a direction opposite to the direction of the pushing operation, etc. A switch is provided by providing an opening / closing body driven by the reversing mechanism to open and close the contacts by the reversing operation, and a light emitting element for displaying contact opening / closing is provided in the switch, and a push button handle is provided. A light-transmitting window is provided, and a holding plate with a lens for guiding the light of the light-emitting element to the outside is mounted inside the push-button handle, the lens is arranged corresponding to the light-transmitting window, and the push button is pressed. A switch characterized in that a lower surface of a slide cam slidably disposed inside a handle is supported by a holding plate. 2. The switch according to claim 1, wherein the light emitting element is a neon lamp. 3. The switch according to claim 1, wherein the light emitting element is a light emitting diode . 4. The switch according to claim 1, wherein both side ends of the push button handle, which is a pressing operation surface exposed to the outside having a circular surface shape, are substantially the same as both outer surface portions of the cover. 5. A handle block is formed by incorporating a slide cam, a holding plate and a coil spring into a push button handle having a circular shape and serving as a pressing operation surface exposed to the outside, and a reversing handle and a reversing handle are formed on a cover. 2. The switch according to claim 1, wherein a cover block incorporating a coil spring for reversing the handle is formed.