JPH0610585Y2 - Bidirectional switch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a bidirectional switch configured using rubber contacts.

[Background of the invention]

Conventionally, a push button switch using a conical rubber contact has been widely used. When such a push button switch presses the rubber contact from above and the deformation thereof reaches a predetermined level, the rubber contact is rapidly deformed and urged downward, so that the contact is closed. Therefore, it is possible to realize a push button switch having a click feeling with an extremely simple configuration. However, a bidirectional push button switch using such a rubber contact has not been proposed.

[Purpose of device]

The present invention has been made in view of the above conventional problems, and provides a bidirectional switch that can open and close two contacts by operating an operation knob in different directions using a rubber contact. The purpose is to

[Constitution and effect of device]

(Means for Solving the Problems) The present invention is a bidirectional switch configured by using a rubber contact, in which a case, a plunger provided at the center of the case, and the plunger are different in the case. Operating knob for driving in the direction, and a pair of rubber contacts, each of which has a truncated cone shape and has elastic contacts inside its top, and each top is coaxially held on both sides of the central part of the plunger,
The pair of rubber contacts are respectively in contact with bottom surfaces of the pair of rubber contacts, and have a pair of substrates fixed in parallel to each other, each of which has a contact opposite to the surface corresponding to the elastic contact. It is characterized in that the contact points corresponding to the operating directions of the pair of substrates are respectively closed by the operation.

(Operation) According to the present invention having such a feature, the plunger at the center of the case holds the tops of the pair of rubber contacts,
Substrates having opposite contacts are attached to the bottom surface of each rubber contact, and the plunger is driven by an operation knob. By doing so, one of the rubber contacts is deformed depending on the operating direction of the operation knob, and the contact is closed. Therefore, a bidirectional switch in which different contacts are closed depending on the operating direction of the operating knob can be used.

(Effects of the Invention) As described above, according to the present invention, since the rubber contact is deformed in different directions by the operation knob to close the different contacts, a switch having a bidirectional operation unit is configured. To be done. Since this switch has a rubber contact, its structure is extremely simple and can be an operation switch with a good click feeling. The bidirectional switch configured as described above can be applied to various operation switches for vehicles, for example, an operation switch provided on a steering wheel or an operation switch such as a power window.

[Explanation of Examples]

FIG. 1 (a) is a front view showing the construction of a bidirectional switch according to a first embodiment of the present invention, FIG. 1 (b) is a sectional view taken along line AA, and FIG. 1 (c) is B-. It is a B line sectional view. As shown in these figures, this bidirectional switch includes a pair of operation knobs 2 and 3 that slide in the case 1 from both ends of the prismatic case 1.
Is provided. Grooves 1a to 1d along the axis are provided on the inner wall of the case 1 on opposite side walls as shown in the drawing, and the operation knobs 2 and 3 have projections 2a, 1d corresponding to these grooves, respectively.
2b and 3a, 3b are provided respectively. In the case 1, printed boards 4 and 5 are fixed inside the operation knobs 2 and 3 perpendicularly to the shaft. The operation knobs 2 and 3 are configured to be slidable in the case 1 along the axis thereof, and are provided between the operation knobs 2 and 3 and the printed circuit boards 4 and 5 in the form of a coil spring 6a,
It is always urged outward by 6b and 7a, 7b. A plunger 8 slidably held along a groove (not shown) is provided at the center of the case 1. The plunger 8 has a pair of rubber contacts 9 and 1 at its center.
It fixes 0. Rubber contacts 9 and 10
Is a truncated cone-shaped member having conductive elastic contacts 9a and 10a on the inner upper surface, and the lower parts thereof are held by the printed boards 4 and 5, respectively. The printed boards 4 and 5 are provided with contacts having a pattern facing each other at positions corresponding to the elastic contacts 9a and 10a of the rubber contacts 9 and 10.

In the bidirectional switch configured in this way,
For example, if the operation knob 2 is pressed in the direction of arrow A, the spring 6a,
6b contracts. When further pressed, the plunger 8 also moves in the direction of arrow A along the axis of the case 1, and the rubber contact 10 is pressed to close the contact provided on the printed circuit board 5. On the contrary, when the operation knob 3 is pressed in the direction of arrow B against the springs 7a and 7b, the plunger 8 is moved in the direction of arrow B and the rubber contact 9 is deformed, so that the contact point provided on the printed circuit board 4 is deformed. Closes. Therefore, the two contacts can be closed alternately by pressing the operation knobs provided on both the left and right sides.

Further, in this embodiment, the operation knob is provided on both sides of the case 1. However, as shown in the front view and the vertical sectional view in FIGS. 2 (a) and (b), one operation knob is provided. The switch can be operated by rotating it. In this embodiment, the case 11 is formed into a housing, and a pair of printed boards 12 and 13 each having a contact having a pattern facing each other are attached to the inner wall surface of the case 11, and the terminals are drawn out from these contacts. A shaft 16 is provided on the operation knob 15 integrally formed with the plunger 14, and the shaft 16 is held by one end of the case 11 so as to be rotatable, and a pair of rubber contacts 17 and 18 are provided at a central position of the plunger 14. I try to hold it. In this way, since one of the rubber contacts 17 and 18 contracts by rotating the operation knob 15, the contacts of the printed circuit boards 12 and 13 can be closed.

Next, a power window switch using this bidirectional switch will be described. FIG. 3 (a) is a front view of the power window switch, and FIG. 3 (b) is a sectional view taken along the line CC. As shown in these figures, the power window switch is a switch for opening and closing windows on four sides of the vehicle, and this bidirectional switch is used for opening and closing one window. As shown in the figure, the power window switch 21 has eight openings 23a to 23h provided on the panel 22, and four bidirectional switches according to the first embodiment are mounted therein. That is, Fig. 3
As shown in (b), bidirectional switches 24 and 25 for opening and closing windows on the driver's seat side and the driver's seat rear side of the vehicle are provided on a printed circuit board 26, and are not shown on the passenger seat side and the passenger seat rear side. Two bidirectional switches are mounted in the same way. When closing each window, a finger is inserted through the openings 23a to 23h provided in the power window switch as shown in the drawing, and the operation knob of the bidirectional switch is pressed in the arrow direction. Then, the window motor is driven via the control circuit (not shown), and the window can be driven in the closing direction or the opening direction only while the window motor is being pressed. Further, by incorporating the push button switches 27 and 28 into the openings 23a and 23b of the power window switch at the same time, the window can be controlled to be completely opened or closed once the push button switch is pushed down. .

FIGS. 4 (a) and 4 (b) are views showing a state in which the bidirectional switch according to the present invention is incorporated in a steering wheel and used as a switch for controlling a radio. As shown in the drawing, the operability switches 33 and 34 according to the first embodiment are incorporated in the central boss 32 of the steering wheel 31 so that the front and back surfaces of the steering wheel can be operated. When necessary, the operability switch can be pressed in either direction to control the volume and tuning of the car radio.

[Brief description of drawings]

1 (a) is a front view of a bidirectional switch according to a first embodiment of the present invention, and FIG. 1 (b) is a sectional view taken along line AA of FIG.
2C is a sectional view taken along the line BB, FIG. 2A is a front view of a bidirectional switch according to another embodiment of the present invention, and FIG. 2B is a sectional view taken along the line AA. FIG. 3 (a) is a front view showing a state in which the bidirectional switch according to the present invention is applied to a power window switch, FIG. 3 (b) is a sectional view taken along line CC of FIG.
FIG. 4 (a) is a front view showing a state in which a bidirectional switch according to the present invention is incorporated in a steering wheel to be an operation switch of a car radio, and FIG. 4 (b) is a sectional view taken along the line D-D. 1,11 …… Case, 2,3,15 …… Operation knob, 4,
5, 12, 13 ... Printed circuit board, 8, 14 ... Plunger, 9, 10, 17, 18 ... Rubber contact, 2
1 ... Power window switch, 24, 25, 33,
34 ... Bidirectional switch, 23a-23h ... Open

Claims (2)

[Scope of utility model registration request] 1. A case, a plunger provided in a central portion of the case, an operation knob for driving the plunger in different directions in the case, and a truncated cone shape having elastic contacts inside the top thereof, respectively. A pair of rubber contacts whose tops are coaxially held on both sides of the central portion of the plunger, and a contact which is in contact with the bottom surfaces of the pair of rubber contacts and faces the surfaces corresponding to the elastic contacts. A pair of substrates fixed to the case in parallel with each other,
A bidirectional switch characterized in that the operation knobs are operated in either direction to close respective contacts corresponding to the operation direction of the pair of substrates. 2. The bidirectional invention according to claim 1, wherein the pair of rubber contacts have a structure in which respective elastic contacts are in contact with each other at the plunger portion. Sex switch.