JPH11265631A - Structure of push button switch - Google Patents

Abstract

(57) [Problem] To provide a push-button switch in which various parts can be inserted into a case from a single direction and assembled. A pushbutton switch includes a knob, a movable body having an engagement portion, and a guide that engages with the engagement portion.
0a, and the pole plate 4 engaged with the case 10. The movable body 3 forms an inclined surface 3f, and the pole plate 4 has an inclined surface 4i for moving the movable body 3 in opposition to the inclined surface 3f. The inclined surface 4i is formed at the tip of the projecting piece 4b. The inclined surface 3f is formed at the tip of the protruding piece 3d.

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 having good workability in assembling work.

[0002]

2. Description of the Related Art Conventionally, as this kind of technique, there is a technique disclosed in, for example, Japanese Patent Application Laid-Open No. 58-163115. Conventional push-button switch technology is such that a guide protrusion and
A guide groove is formed in the case to engage the guide projection. The operating body and the spring are inserted and disposed in the case in a pressing direction, that is, in a lateral direction with respect to the case. Then, other members such as a substrate are inserted and arranged in the case from above or below the case.

[0003]

However, in the above-described conventional push button switch having the guide projection and the guide groove, since various components are inserted into the case from multiple directions and assembled, the automatic push by a machine is performed. There is a problem that the assembling is difficult and the workability of the assembling work is poor.

An object of the present invention is to provide a push-button switch in which various components can be inserted into a case from a single direction and assembled, and the assembly is easy.

[0005]

Means for Solving the Problems The invention of claim 1 of the present invention has been made to solve the above-mentioned problems of the prior art, and comprises a knob, a movable body having an engaging portion, and In a push button switch composed of a case having a guide with which an engaging portion engages, and a pole plate engaging with the case,
The movable body forms an inclined surface, and the pole plate has an inclined surface that opposes the inclined surface and moves the movable body facing the inclined surface.

According to a second aspect of the present invention, in the first aspect of the invention, the inclined surface is formed at a tip of a projecting piece.

According to a third aspect of the present invention, in the first aspect of the invention, the inclined surface is formed at a tip of a projecting piece.

According to a fourth aspect of the present invention, in the first, second, or third aspect, the case is inserted into a base of a vehicle combination switch.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a first embodiment of the present invention will be described in detail with reference to FIGS. 1, 2, and 3. FIG. Reference numeral 1 denotes a knob of a push button switch, and a nameplate 2 indicating a function of the switch is attached to a position one step lower than the operation surface 1a. The knob 1 is provided with a night illumination lamp (not shown) arranged on the pole board 4.
And through holes 1b and 1c through which light from an operation indicator lamp (not shown) passes. The knob 1 has a movable body 3
By engaging the locking piece 1d with the claw 3a, the fixing piece is fixed to the movable body 3 and moves together with the movable body. Note that the knob 1 may be formed integrally with the movable body 3.

The movable body 3 comprises a rockin 5, a leaf spring 6,
A contact spring 7 and a movable contact plate 8 are provided, and are urged by a spring 9. The movable body 3 has a plurality of engaging portions 3b which protrude from the side surface and the upper surface to engage with a guide 10a formed by a groove formed in the case 10. The movable body 3 has on its lower surface a protruding piece 3d arranged at a position opposite to a protruding piece 4b formed on the board surface 4a of the pole board 4. The protruding pieces 3d, 4b
Has inclined surfaces 3f and 4i at the tip. Slope 3
f is inclined in a direction facing the inclined surface 4i.

The rocking pin 5 is provided with an insertion hole 3c for the movable body 3.
The lower end is placed on the leaf spring 6 to be urged, and the upper end thereof is pressed against the cam surface of the heart cam 11 pivotally supported on the case 10. The ropin 5 is a thin metal bar. The leaf spring 6 is a spring that locks one end of the leaf spring 6 with the lower surface of the movable body 3 and presses the lop pin 5.

The movable contact plate 8 is engaged with the lower surface of the movable body 3 via a contact spring 7. When the knob 1 is pressed, the movable contact plate 8 moves linearly with the knob 1 and the movable body 3 on the board surface 4a. The movable contact plate 8 is integrally formed with a locking piece 8a that locks with a claw (not shown) of the movable body 3.

The pole plate 4 is provided on the board surface 4a.
b, and fixed contacts 12. 4c is a coupler. In the vicinity of the coupler 4c, a locking hole 10 of the case 10 is provided.
4b is formed with a fitting convex portion 4d which engages with b. The case 10 has a lateral direction in which the knob 1 is arranged as shown in FIG.
It is a box body opened at the lower side where the movable body 3 is arranged. still,
The heart cam 11 may form a heart cam directly on the inner wall of the case 10.

The first embodiment of the present invention is configured as described above, and its operation will be described in detail together with the assembling procedure. The locking piece 1d of the knob 1 to which the nameplate 2 is attached is engaged with the claw 3a, and the knob 1 and the movable body 3 are integrated. The case 10 shown in FIG. 1 is arranged upside down as shown in FIG. 2, and the heart cam 11 is inserted into the case 10 from the direction of arrow B1 to pivotally support the inner wall. Next, as shown in FIG. 2, one end of the spring 9 is brought into contact with the side surface of the movable body 3, and the other end is pressed against the side wall 10 c of the case 10 while compressing the spring 9, thereby moving the movable body 3. It is supported in the case 10 from the direction of arrow B2. The movable body 3 is urged by a spring 9,
The stopper portion 3e presses against the edge 10d. At this time, the engaging portion 3b is located at a position adjacent to the guide 10a on the end face of the case 10, and is not engaged with the guide 10a.

A movable contact plate 8 is engaged with the lower surface of the movable body 3 via a contact spring 7 from the direction of arrow B3. The lock pin 5 is inserted into the insertion hole 3 c of the movable body 3, and a leaf spring 6 for urging the lock pin 5 is locked on the lower surface of the movable body 3. Next, as shown in FIG. 2, the pole plate 4 is made to match the case 10 from the direction of arrow B4. Then, the projecting piece 4b strikes the projecting piece 3d.

As shown in FIG. 3, the movable body 3 is brought into contact with the inclined surface 3f at the tip of the protruding piece 3d and the inclined surface 4i at the tip of the protruding piece 4b. The spring 9 is pressed and moved to compress the spring 9. Case 10
The side wall 10c is inserted into a gap 4g formed between the back surface 4e of the coupler 4c and the projection 4f, and the locking hole 10e is engaged with the claw 4h to be fixed to the pole plate 4. The engagement portion 3b
The guide 10 moves together with the movable body 3 in the direction of arrow A2.
a. As a result, when the knob 1 is pressed, the movable body 3 is immersed with the engagement portion 3b guided by the guide 10a, and the operation becomes smooth. Since the engaging portion 3b is engaged with the guide 10a, the movable body 3 does not fall off the case 10 to the lower pole plate 4 side.

As described above, the movable body 3 to which the knob 1 is fixed
Can be assembled to the case 10 from the direction of the arrow B2 perpendicular to the direction of operation of the arrow A1 of the knob 1. The pole board 4 etc.
The components can be mounted on the movable body 3 in the direction of arrow B4, and the mounting directions of the components are the same directions of arrows B1, B2, B3, and B4. This makes it possible to automatically assemble each component by a machine, thereby improving productivity and reducing costs.

When the knob 1 is pressed in the direction of arrow A1,
The knob 1 and the movable body 3 are connected to the case 10 while the engaging portion 3b is guided by the guide 10a and the spring 9 is compressed.
Move to the back side of. The movable contact plate 8 slides on the board surface 4a and comes into contact with the fixed contact 12 to be turned on. Ropin 5
Locks on the cam surface of the heart cam 11 to maintain this ON state.

When the knob 1 is pressed again in the direction of arrow A1, the locking of the cam surface of the lop pin 5 is released, and the movable body 3 is released.
And the knob 1 is pressed by the spring 9 and automatically returns to the original OFF position. The movable contact plate 8 moves to the original OFF position side together with the movable body 3 and the knob 1, comes into a non-contact state with the fixed contact 12, and is turned off.

First, a second embodiment of the present invention will be described in detail with reference to FIG. 4, FIG. 5, and FIG. Reference numeral 13 denotes a base of the combination switch 14. The first switch 15 is mounted on the left side and the second switch 16 is mounted on the right side. The base 13 is screwed to a steering column (not shown). The combination switch 14 is a switch installed near a steering wheel on the left side of the vehicle body. Hereinafter, a switch for a left-hand drive vehicle will be described in detail as an embodiment of the present invention. When used for a right-hand drive vehicle, all parts can be appropriately used by forming them into target shapes.

The base 13 has a cylindrical tube 17 through which a steering shaft (not shown) is inserted at the center. The combination switch 14 has functions of, for example, a turn signal switch, a passing switch, a main dimmer switch, and a wiper / washer switch. The combination switch 14 has a function of a turn signal switch that blinks a direction indicator lamp when the first lever 18 is operated in the left and right directions of arrows C and D.

The combination switch 14 has a first
When the lever 18 is operated in the upward direction of the arrow E, it has a function of a passing switch in which a headlight is temporarily turned on. Further, the combination switch 14 is connected to the first lever 1.
When the button 8 is operated in the up and down directions of the arrows E and F, it has a function of a main dimmer switch for switching between main and dimmer of the headlight.

The combination switch 14 has a function of a wiper / washer switch for injecting a washer liquid onto the windshield and operating the wiper three or four times when the first lever 18 is turned in the direction of arrow G. Further, a rotation knob 19 provided adjacent to the tip end of the first lever 18 is provided.
Is operated in the direction of arrow H to operate the wiper once, and the operation in the opposite direction of arrow I is provided with the function of a wiper switch for sequentially switching the operation to intermittent, low speed, and high speed. 20 is a fixed knob. The second
Switch 16 is a second switch having a headlight switch function.
A lever 21 is provided.

Reference numeral 22 denotes a knob of a push button switch such as a hazard switch, and a mark 22a indicating the function of the switch is printed on the operation surface 22b. The knob 22 is provided at a substantially central portion of the rear surface thereof with a cylindrical portion 22 into which a stick-out portion 23a of the movable body 23 is fitted.
c is formed to protrude. A rod protruding portion 23 is provided on the cylindrical portion 22c.
A fitting hole 22d is formed so as to engage with the claw 23b formed at a. The knob 22 moves integrally with the movable body 23 by fitting the stick-out portion 23a to the cylindrical portion 22c. The cylindrical part 2
2c has a plurality of engaging portions 22e protrudingly formed on the upper side and both side surfaces. The engagement portion 22e is connected to the first switch 15
And a groove-like guide 27b formed on the inner wall of the opening 27a in which the knob 22 of the case 27 is inserted. Knob 2
2 may be formed integrally with the movable body 23.

The opening 27a of the case 27 is formed in a U-shape whose lower side is open. The opening 27a forms a cylindrical body that supports the movable body 23 and the cylindrical part 22c in a linearly movable manner by engaging the support plate part 28a of the lower case 28.

The movable body 23 has a lock pin 24 and a movable contact plate 25, and is urged toward the knob 22 by a spring 26. The movable body 23 has an engaging portion 23c formed on an outer peripheral portion. The engaging portion 23c is a groove that engages with a guide 27d protruding from a side wall of the recess 27c of the case 27 of the first switch 15. The movable body 23 has two protruding pieces 23d and 23e formed on the lower surface at both ends in a clogged tooth shape. One protruding piece 23d is arranged at a position facing the protruding piece 29a formed on the upper surface of the pole board 29. An inclined surface 23f is formed on one of the protrusions 23d, and the other protrusion 23e
Has no slopes.

An inclined surface 29b that is inclined in a direction facing the inclined surface 23f is formed at the tip of the protruding piece 29a of the pole plate 29. The movable body 23 is urged by a spring 26, and the end face 23i of the protruding pieces 23d and 23e on the inclined surface 23f abuts against the side wall 27e of the recess 27c. To prevent them from falling out.

The rocking pin 24 is vertically movably inserted into an insertion hole 23g of the movable body 23. The ropin 24
The heart cam 3 whose lower end is urged by being placed on the movable contact plate 25 and whose upper end is pivotally supported on the inner wall of the recess 27c.
0 is in contact with the cam surface. The ropin 24 is formed of a thin metal bar. The movable contact plate 25 is locked by a locking portion 23h having an end formed on the lower surface of the movable body 23. The movable contact plate 25 is a conductive leaf spring member having both a leaf spring 25a for pressing the rop pin 24 and a sliding contact 25b. When the knob 22 is pressed and operated, the movable contact plate 25 moves together with the knob 22 and the movable body 23 to the pole plate 2.
9 on the board surface 29c.

The pole board 29 has the protruding piece 29a and a fixed contact (not shown) on a board surface 29c, and a terminal 29d for conducting to the fixed contact is formed on the lower surface of the board surface 29c by insert molding. The pole board 29 is provided with a positioning protruding piece 29f that matches the inner wall 27f of the recess 27c and a fixed contact (not shown) of a turn signal switch on a board surface 29e other than the board surface 29c. The pole board 29 is fitted into the lower case 28.

The lower case 28 includes a claw 28b formed on the outer periphery.
Is fitted to the lower surface of the case 27 by engaging with the hole 27g. 28c is a coupler in which the terminal 29d is inserted and arranged. The heart cam 30 is provided in the case 27.
A heart cam may be formed directly on the inner wall of the recess 27c.

The second embodiment of the present invention is configured as described above, and its operation will be described in detail along with the assembling procedure. The protruding portion 23a of the movable body 23 is fitted into the cylindrical portion 22c of the knob 22, and the knob 22 and the movable body 23 are integrated. The heart cam 30 is inserted into the recess 27c of the case 27 in the direction of the arrow K1 to support it. The coupler 28c is fitted to the terminal 29d, and the lower case 28 is fitted to the pole board 29 from the direction of arrow K2.

Next, the movable contact plate 25 is engaged with the engaging portion 23h on the lower surface of the movable body 23, and the rod pin 24 is inserted into the insertion hole 23g.
Insert One end of a spring 26 is inserted into the end of the movable body 23, and the other end is pressed against the inner wall 27 f of the case 27 while compressing the spring 26, and
3 is supported in the case 27 from the direction of arrow K1. The case 27 is urged by a spring 26 to
End faces 23i of d and 23e are in pressure contact with the side wall 27e of the recess 27c. The tip of the lop pin 24 is pressed against the cam surface of the heart cam 30. At this time, the engaging portion 23c is
It does not engage with 7d and is located next to the knob 22 side of the guide 27d. Further, the engaging portion 22e does not engage with the guide 27b, and is located next to the guide 27b outside the case 27.

Next, the lower case 28 is fitted to the case 27 from the direction of arrow K3. Then, the protruding piece 29 of the pole board 29
a strikes the inclined surface 23f of the protruding piece 23d while slidingly contacting the side wall 27e. The positioning protruding piece 29f is attached to the back wall 27f.
And the protruding piece 29a makes contact with the pole plate 29 and the case 2
Positioning at the time of fitting with 7 is performed. The lower case 28 is
8b is fitted into the hole 27g, and the claw 29g of the pole board 29 is fitted into the hole 27h, thereby being fixed to the case 27.

The movable body 23 is provided with an inclined surface 2 of a protruding piece 29a.
9b collides with the inclined surface 23f, and is pressed and moved in the direction of arrow J to compress the spring 26. The movable body 23 is housed in the recess 27c and moves in the lateral direction of the arrow J, so that the engaging portion 22e of the knob 22 is moved to the guide 27b.
And the guide 23c of the movable body 23 engages with the guide 27d. Accordingly, when the knob 22 is pressed, the movable body 23 is moved so that the engaging portion 22e is connected to the guide 27b.
c is guided and moved by the guides 27d, respectively, and the operation becomes smooth without rattling.

The movable body 23 can move only in the directions of the arrows J and M because the guide 27d is engaged with the engaging portion 23c, and does not move in the direction of the arrow L and fall off the case 27. The knob 22 is provided with an engaging portion 22 formed on the left and right upper side.
Since e is engaged with the guide 27b, it can move only in the directions of arrows J and M, and does not move in the direction of arrow L and fall off the case 27.

As described above, the movable body 23 to which the knob 22 is fixed can be attached to the case 27 from the direction of the arrow K1 perpendicular to the direction of the pressing operation of the arrow J of the knob 22. The pole board 29, the lower case 28, and the like can be assembled in the same arrow K2 and K3 directions as the movable body 23, and the assembly directions of the respective components are the same arrows K1, K2, and K3 directions. This enables automatic assembly of each part by machine,
It is possible to improve productivity and reduce costs.

When the knob 22 is pressed in the direction of arrow J,
The knob 22 and the movable body 23 move to the inner side of the case 27 while compressing the spring 26 with the engagement portions 22e and 23c being guided by the guides 27b and 27d. The movable contact plate 25 slides on the board surface 29c and comes into contact with the fixed contact to turn ON, and the hazard lamp blinks. Ropin 24,
It is locked on the cam surface of the heart cam 30 to keep the ON state in which the hazard lamp blinks.

When the knob 22 is pressed again in the direction of the arrow J, the locking of the cam surface of the lop pin 24 is released, and the movable body 23 and the knob 22 are pressed by the spring 26 and automatically return to the original OFF position. . The movable contact plate 25 moves in the direction of the arrow M together with the movable body 23 and the knob 22 to come into a non-contact state with the fixed contact, and the blinking of the hazard lamp stops.

[0039]

Since the present invention is constructed as described above, the following effects can be obtained. The invention according to claim 1 of the present invention includes a knob, a movable body having an engagement portion, a case having a guide with which the engagement portion engages, and a pole plate engaging with the case. In the push button switch, the movable body forms an inclined surface, and the pole plate hits the inclined surface, and the inclined surface for moving the movable body is arranged to face each other, so that each part is arranged in the same direction. It can be assembled,
Automatic assembly by a machine can be performed, mass productivity can be improved, and costs can be reduced.

According to a second or third aspect of the present invention, since the inclined surface is formed at the tip of the protruding piece, the inclined surface and the inclined surface are formed so that they can easily come into contact with each other during assembly work. Can be arranged.

According to a fourth aspect of the present invention, in the first, second, or third aspect of the present invention, the case is inserted into a base of a combination switch for an automobile to assemble a buzzer switch or the like. Work can be facilitated.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of the present invention.

FIG. 2 is a diagram showing the first embodiment of the present invention, and is an explanatory diagram showing an assembling procedure.

FIG. 3 is a diagram showing the first embodiment of the present invention, and is an explanatory diagram showing an assembling procedure.

FIG. 4 is a plan view showing a second embodiment of the present invention and having a partial cross section.

FIG. 5 is a drawing showing the second embodiment of the present invention, and is an exploded enlarged side view of a main part having a partial cross section.

FIG. 6 is a drawing showing a second embodiment of the present invention, and is an enlarged longitudinal sectional view of a main part.

FIG. 7 is an enlarged bottom view of a case having a partial cross section, showing a second embodiment of the present invention.

[Explanation of symbols]

 1, 22 knob 3, 23 movable body 3b, 23c engaging portion 3d, 23d, 4b, 29a projecting piece 3f, 4i, 23f, 29b inclined surface 4, 29 pole board 10, 27 case 10a, 27d guide 13 base 14 combination switch

Claims (4)

[Claims] A knob (1, 22) and an engaging portion (3b, 2).
3c) and the engaging portion (3).
b, 23c) and a case (10, 27) having a guide (10a, 27d) with which the case (10, 2c) is engaged.
7) a pole plate (4, 29) engaged with the push button switch, wherein the movable body (3, 23) forms an inclined surface (3f, 23f); 29) is the inclined surface (3f, 23f).
Characterized in that the inclined surfaces (4i, 29b) for moving the movable body (3, 23) are arranged opposite to each other so as to impinge on the push button switch. 2. The invention according to claim 1, wherein said inclined surface (4i, 29b) has a projection (4b, 29a).
The structure of the push button switch formed at the tip of the button. 3. The invention according to claim 1, wherein the inclined surface (3f, 23f) is a projection (3d, 23d).
The structure of the push button switch formed at the tip of the button. 4. The push-button switch according to claim 1, wherein the case (27) is inserted into a base (13) of a vehicle combination switch (14). Construction.