JP2000182457A - Lever switch device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the structure of a lever switch device for vehicles. SOLUTION: Tact switches are used as a dimmer switch 32, a passing switch 33, and a turn switch which are operated following the operation of turning a lever 21, and the switches 32, 33 are mounted on a circuit board 31. Turning of the lever 21 in the direction of the arrow A moves a responsive operation member 40 in the direction of the arrow C and the dimmer switch 32 is turned on by a cam projection 45a. Turning of the lever 21 in the direction opposite to the arrow A moves the responsive operation member 40 in the direction opposite to the arrow C, and the passing switch 33 is turned on by the cam projection 45a. Turning of the lever 21 in the direction perpendicular to the arrow A causes the cam projection of the responsive operation member 40 to turn on the turn switch.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lever switch device for a vehicle using a tact switch as a switch operated in association with a turning operation of a lever.

[0002]

An example of a conventional vehicle lever switch device will be described with reference to FIGS. First, in FIGS. 5 and 6, the lever-1 is supported by the turn bracket 2 so as to be reciprocally rotatable about the shaft 3 in the direction of arrow A and the direction of anti-arrow A in FIG. Bracket 2 between case 4 and middle case 5
It is attached so as to be able to reciprocate in the directions indicated by arrows B and anti-arrow B in FIG.

A first detent piece 6 urged outward by a spring is provided at a base end 1a of the lever 1.
The bracket 2 is provided with a first detent portion 7 on which the distal end of the first detent piece 6 slides. In addition, a second moderation piece 8 for turning is provided on the tip side of the bracket 2.
Is provided, and the case 4 is provided with a second moderating portion 9 in which the tip of the second moderating piece 8 slides. As shown also in FIG. 7, on both sides of the proximal end portion 1a of the lever 1, an operation convex portion 10 projecting sideways is provided.

[0005] A wiring board 11 is provided below the middle case 5 in FIG. 5, and a contact holder 12 is slidably provided between the wiring board 11 and the middle case 5. I have. As shown in FIG.
Common fixed contact 13a, fixed contact for dimmer 13b, fixed contact for passing 13c, fixed contact for turn 13d
And 13e. A movable contact 14 integrally having four contact portions 14a to 14d is attached to the lower surface side of the contact holder 12. The contact holder 12 is provided integrally with two arms 12a toward the turn lever 1 side.
A guide groove portion 15 having an inclined shape is formed on the inner surface side. The operating projection 10 of the lever 1 is slidably inserted into these guide grooves 15.

A circuit processing board 16 is provided below the wiring board 11, and a cord 17 connected to each of the fixed contacts 13a to 13e of the wiring board 11 is connected to the circuit processing board 16. . The circuit processing board 16 is used for multiplex communication, and is provided for sending a switch signal to the control circuit side of the vehicle, so as to reduce the number of codes.

In the above configuration, when the lever 1 is rotated in the direction of arrow A, the operating projection 10 and the guide groove 1
By the action of 5, the contact holder 12 moves in the direction of arrow C, whereby the contact portions 14a and 14b of the movable contact 14 come into contact with the common fixed contact 13a and the dimmer fixed contact 13b, and the dimmer switch is turned on. When the lever 1 is rotated in the direction opposite to the arrow A, the contact holder 12 moves in the direction opposite to the arrow C due to the action of the operation convex portion 10 and the guide groove portion 15, and the movable member is movable accordingly. Contact 14
Contact portions 14a and 14b contact the common fixed contact 13a and the passing fixed contact 13c, and the passing switch is turned on.

On the other hand, when the lever 1 is rotated in the direction of arrow B, the contact holder 12 moves in the direction of arrow D as the base end 1a of the lever 1 pushes the arm 12a in the direction of arrow D. Accordingly, the contact portion 14 of the movable contact 14
a and 14c contact the common fixed contact 13a and one turn fixed contact 13d, and one turn switch is turned on. When the lever 1 is rotated in the direction opposite to the arrow B, the base 1a of the lever 1 is moved to the arm 12a.
Is pressed in the direction opposite to the arrow D, the contact holder 12 moves in the direction opposite to the arrow D, and the contact portions 14a and 14d of the movable contact 14
a, and the other turn fixed contact 13e is brought into contact with the other turn switch to turn on.

By the way, in the above-mentioned conventional configuration,
Since the movable contact 14 needs to slide on the wiring board 11 provided with the fixed contacts 13a to 13e, the wiring board 11 cannot be provided with elements for circuit processing.
Therefore, the wiring board 11, the circuit processing board 16, and the cord 16 connecting between them are required. Further, a movable contact 14 that comes in contact with and separates from the fixed contacts 13a to 13e is also required, and the structure is complicated as a whole.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicular lever switch device capable of simplifying the structure.

[0010]

In order to achieve the above-mentioned object, a first aspect of the present invention is directed to a lever provided to be reciprocally rotatable about a shaft, and a plurality of levers mounted on a circuit board. The tact switch is provided so as to be moved in accordance with the rotation of the lever, and a responsive operation member that operates the tact switch in accordance with the movement.

According to the above configuration, the tact switch is used as the switch operated in accordance with the turning operation of the lever, and the tact switch is mounted on the circuit board, so that the wiring board provided with the fixed contacts is provided. Unlike the conventional structure in which the movable contact slides on the top, the circuit board can be one,
In addition, since the movable contact is not required as a separate member, the structure can be simplified.

In this case, the responsive operation member comprises a first member which is moved by the lever and a second member which is moved by the first member to operate the tact switch. Preferably, an elastic member is provided between the two members (the invention of claim 2).

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. First, in FIGS. 1 and 2, the lever 21 is supported by the turn bracket 22 so as to be able to reciprocate in the direction of arrow A and the direction of anti-arrow A in FIG. Attached between the case 24 and the middle case 25 so as to be reciprocally rotatable around the shaft portion 2a of the bracket 22 in directions indicated by arrows B and B in FIG. I have.

A spring 26 is provided at the base end 21a of the lever 21.
The first moderation piece 26 urged outward by a is provided, and the bracket 22 is provided with a first moderation portion 27 in which the tip of the first moderation piece 26 slides. I have. A spring 28 is provided on the tip end side of the bracket 22.
A second moderating piece 28 for turning which is urged outward by a is provided in the case 24, and a second moderating portion 29 in which the tip end of the second moderating piece 28 slides is provided. Is provided. As shown in FIG. 3, the operation protrusions 3 protruding sideways are provided on both sides of the base end 21 a of the lever 21.
0 is protruding.

2, a circuit board 31 is provided below the middle case 25 in FIG.
Dima switch 32 composed of tact switches
, The passing switch 33 and the turning switch 3
4, 35 are mounted. Each switch 32-35
Is turned on in response to the pressing operation of the operating elements 32a to 35a, and turned off in response to the release of the pressing. The middle case 25 is formed with a concave receiving portion 37, and at the bottom of the receiving portion 37,
An opening 38 is formed at a position corresponding to each of the switches 32 to 35. In FIG.
2 and only the opening 38 corresponding to the passing switch 33 is shown). Operators 32a to 35 of switches 32 to 35
a protrudes from the opening 38 into the housing 37 (upward in FIG. 5).

In the housing 37, a responsive operation member 40 is housed movably along the bottom of the housing 37. The responsive operation member 40 includes a cam holder 41 constituting a first member, and a cam plate 42 constituting a second member disposed below the cam holder 41.
An elastic member 43 made of a leaf spring is disposed between the cam holder 41 and the cam plate 42.

As shown in FIG. 3, two arms 41a are integrally provided on the cam holder 41 toward the lever 21, and the two arms 41a are inclined on the inner surface side. A guide groove 44 is formed. The operating projections 30 of the lever 21 are slidably inserted into the guide grooves 44. As shown in FIG. 4, cam projections 45a, 45b, 45 are formed around the lower surface of the cam plate 42.
c is provided. Cam convex portions 45a, 45b, 45c
Is formed with a slope on the side. The elastic member 43 has a cross shape having four legs, and urges the cam holder 41 and the cam plate 42 in a direction in which they are separated from each other. In this case, the cam holder 41 is vertically movable with respect to the cam plate 42 while being elastically supported by the elastic member 43.

In the above configuration, when the lever 21 is rotated in the direction of arrow A, the responsive operating member 40 moves in the direction of arrow C by the action of the operating projection 30 and the guide groove 44,
Accordingly, the operator 32a of the dimmer switch 32 is pressed by the cam projection 45a of the cam plate 42, and the dimmer switch 32 is turned on. Also, lever 2
1 is rotated in the direction opposite to the arrow A, the responsive operation member 40 moves in the direction opposite to the arrow C by the action of the actuating projection 30 and the guide groove 35, and accordingly the cam plate 42 Of the passing switch 33 by the cam convex portion 45a.
Is pressed, and the passing switch 33 is turned on.

On the other hand, when the lever 21 is rotated in the direction of arrow B, the base member 21a of the lever 21 pushes the arm 41a of the cam holder 41 in the direction of arrow D, and the responsive operation member 40 is moved in the direction of arrow D. In the direction D, the operator 34a of the switch 34 for one turn is pressed by the cam projection 45b of the cam plate 42, and the switch 34 for the turn is turned on. When the lever 21 is rotated in the direction opposite to the arrow B, the lever 21
Of the cam holder 41 with the arrow D
In response to the pushing in the opposite direction, the responsive operation member 40 moves in the direction opposite to the arrow D, and the cam plate 4
The other turn switch 35 is provided by the second cam projection 45c.
Is pressed, and the turn switch 35 is turned on.

According to the above-described embodiment, a tact switch is used for each of the switches 32 to 35 which are operated in accordance with the turning operation of the lever 21, and the tact switch is mounted on the circuit board 31. The response operating member 40 moved by 21 does not need to slide on the circuit board 31 and requires a wiring board provided with fixed contacts, a circuit processing board, and a cord connecting between them. Unlike the structure, the circuit board 31 can be integrated into one,
In addition, since the movable contact is not required as a separate member, the structure can be simplified.

The responsive operation member 40 includes a cam holder 41 moved by the lever 21 and the cam holder 41.
And a cam plate 42 for operating each of the switches 32 to 35 by an elastic member 43.
Is provided, it is possible to prevent an overstroke on the switches 32 to 35 and to prevent the switches 32 to 35 from being overstroke.
The position accuracy in the height direction of 35 can be relaxed.

That is, in this case, it is conceivable that the positional accuracy of the switches 32 to 35 in the height direction varies due to deformation of the circuit board 31 or the like. When the pressing operation force of the response operation member 40 of the switches 32 to 35 on the operation members 32a to 35a becomes an overstroke, the elastic member 43 bends to absorb the extra pressing operation force on the operation members 32a to 35a. And therefore switch 32
It is possible to prevent an overstroke for ３５35. In addition, the spring load of the elastic member 43 is set to each of the switches 32-35.
The switches 32 to 35 can be reliably turned on by setting the operating force of the switches 32 to 35a to be larger than the pressing operation force for turning on the switches 32 to 35a. Position accuracy in the vertical direction can be reduced.

The present invention is not limited to the above embodiment, but can be modified or expanded as follows. In the above embodiment, the switches operated by the lever 21 are the dimmer switch 32, the passing switch 33, and the turn switches 34 and 35. However, the present invention can be applied to a wiper switch and a washer switch.

In the above embodiment, the lever 21
Are centered on two shaft portions, a shaft portion 23 and a shaft portion 22a.
Although the reciprocating operation in the directions (the direction of the arrow A and the direction of the opposite arrow A and the direction of the arrow B and the direction of the opposite arrow B) has been exemplified, the present invention can also be applied to a case where the operation can be performed in only one direction.

[0025]

As is clear from the above description, according to the present invention, the following effects can be obtained. Claim 1
According to the vehicular lever switch device, a tact switch is used as a switch operated in accordance with the turning operation of the lever,
Since the tact switch is mounted on the circuit board, the circuit board can be integrated into one, and the movable contact is not required as a separate member, so that the structure can be simplified.

According to the second aspect of the present invention, the response operation member includes a first member moved by the lever and a second member moved by the first member to operate the tact switch. With the configuration in which the elastic member is disposed between them, it is possible to prevent an overstroke with respect to the tact switch and to reduce the positional accuracy of the switch in the height direction.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of the present invention.

FIG. 2 is a plan view of a main part shown in perspective.

FIG. 3 is an exploded perspective view of a main part.

FIG. 4 is a perspective view of the cam plate from the lower surface side.

FIG. 5 is a diagram corresponding to FIG. 1 of a conventional example.

FIG. 6 is a diagram corresponding to FIG. 2;

FIG. 7 is a diagram corresponding to FIG. 3;

[Explanation of symbols]

21 is a lever, 22 is a bracket, 22a and 23 are shaft portions, 30 is an operation convex portion, 31 is a circuit board, 32 is a dimmer switch (tact switch), 33 is a passing switch (tact switch), and 34 and 35. Is a turn switch (tact switch), 40 is a responsive operation member, 41 is a cam holder (first member), and 42 is a cam plate (second member).
, 45a, 45b and 45c are cam projections, and 43 is an elastic member.

Claims (2)

[Claims] A lever provided so as to be capable of reciprocating rotation operation around a shaft portion; a plurality of tact switches mounted on a circuit board; and a plurality of tact switches provided so as to be moved with the rotation of the lever. A lever operating device for operating the tact switch in accordance with the movement thereof. The response operation member includes a first member moved by a lever, and a second member moved by the first member to operate a tact switch, and the first and second members are operated. The lever switch device for a vehicle according to claim 1, wherein an elastic member is disposed between the members.