JPH03236124A - Rubber switch - Google Patents

Abstract

PURPOSE:To open or close four contacts separately by providing a housing with a pair of pressers, providing each presser with two contacts, arranging two rubber contact parts, having a difference in working stroke for two contacts respectively, and providing two-step operating means, which absorb the differences in strokes between the contacts. CONSTITUTION:Rubber contact parts 19a and 20a are capable of further pressing and advancing by a little distance after being pressed to contacts 15a and 16a, and the difference in the working strokes from the conductive pieces 19c and 19d of rubber contact parts 19a and 19b to the contacts 15a and 15b is absorbed by the contact parts 19a, and contact making in two steps is performed. A housing 1 is provided with a pair of pressers 8 and 9, arranging two contacts 15a, 15b and 16a, 16b respectively for each presser, the respective two contacts are provided with two rubber contact parts 19a, 19b and 20a, 20b, having differences in working strokes, respectively, and two-step operating means 21, which absorbs the difference in the strokes between the two contacts, is provided, so four pieces of contacts 15a, 15b and 16a, 16b can be opened or closed separately.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a rubber switch suitable for vehicles and the like.

(Prior art) In general, many switches are used not only in vehicles but also in various fields, but in the field of vehicles in particular, reliability, space saving,
Rubber switches are widely used due to demands for ease of operation.

As such a switch, a power window switch for an automobile shown in FIG. 11 is known.

This is to manually open and close the window, and a pair of pressing bodies 102 and 103 are provided in the housing 101 so as to be able to move forward and backward, and the contact wiring 1 is placed oppositely on the forward side (lower side) of the pressing bodies 102 and 103.
D 4 and a rubber switch member 105 are attached, and an operating knob 106 is rotatably provided on the opposite side. When the operation knob] 06 is rotated in the direction of the arrow 107, the rubber contact portion 108 provided on the rubber switch member 105 is pushed by the suppressor 102 and buckles, making pressure contact with the contact portion provided on the contact wiring board 104. This will cause the window glass to rise.

When the operation knob 106 is rotated in the opposite direction, the rubber contact portion 109 closes the contact portion opposite thereto, so that the window glass is lowered.

However, this switch only opens and closes the contacts in one step on each side, so it can only be opened and closed manually.In order to open and close the window automatically, a similar switch is installed separately for automatic operation. is the current situation.

In other words, this type of switch has a small number of parts, so
Although it is highly reliable and inexpensive, it has the disadvantage that it is not suitable for saving space.

On the other hand, Japanese Utility Model Application No. 54-15278 describes a power window switch that operates with two membranes.

In FIG. 12, first contacts 122, 123 and second contacts 124, 125 are provided on both sides of a rotatable operating knob 121, and when the operating knob 121 is rotated in the direction of arrow 126, contacts 122, 123, 124, 125 are provided. 123 are closed sequentially, and the contacts are configured to open and close in a two-stage operation on both sides.

However, this switch has a large number of parts and is made of thin metal pieces, so it has poor accuracy and requires adjustment during assembly, making it expensive and unreliable.

(Problems to be Solved by the Invention) As described above, conventional rubber switches are highly reliable and inexpensive, but they have the disadvantage that they are not suitable for space saving. In addition, switches that operate with two membranes are either suitable for space saving or have disadvantages such as being expensive and having low reliability.

The present invention was made to eliminate the above-mentioned disadvantages, and an object of the present invention is to provide a rubber switch that is inexpensive, highly reliable, and suitable for space saving.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention has the following features:
A pair of pressing bodies provided on the housing so as to be movable back and forth and spaced apart from each other, and a contact wiring board provided on the housing sink facing them and having two contact portions facing each other for each of the pressing bodies, and the same pressing body. A rubber switch member that arranges a rubber contact part on each contact part with different operating stroke lengths for the contact parts of the body and opens and closes each contact part by advancing and retreating the pressing body, and a rubber switch member that opens and closes each contact part by moving the pressing body forward and backward; is provided to absorb the difference in operating stroke between the two contact points.
This rubber switch is characterized in that it includes a two-stage operating means for operating the rubber switch in stages.

(Function) In the present invention, two contact portions are arranged opposite to each other for each pressing body, and a rubber contact portion is arranged opposite to each contact portion, and the two contact portions of the same pressing body are arranged to face each other. Since the operating stroke lengths of the rubber contact portions are made different and a means is provided to absorb this stroke length difference, two-layer operation is possible for both pressing bodies.

(Example) The details of the present invention will be explained below using examples.

A first embodiment will be described with reference to FIGS. 1 to 5.

FIG. 1 is a sectional view showing the overall structure of this embodiment, and FIG. 2 is a sectional view taken along the line 1--2 in FIG.

1 is a housing which is provided with openings 2.3 at the top and bottom, and a guide section 4.5 is provided along the vertical direction inside the housing, and between these is a groove 6 for a V-shaped receiver for a sense of moderation, which will be described later. It is formed. A pressing body 8.9 is inserted through the guide portion 4.5, so that the pair of pressing bodies 8.9 are provided spaced apart from each other so as to be movable forward and backward. These pressing bodies 8.9
is formed into a plate shape, and the lower end portion is formed with a suppressing portion 10.11 having a downward pressing surface and an upward strike/flange surface, and the upper end portion is used as a contact point when moving forward or backward. It is a tangential end.

A contact wiring board 14 is attached to the opening 3 so as to cover it, and this has two contact parts, namely a first contact part 15a, at a position facing the pressing part 10 of the pressing body 8.
, a second contact portion 15b are provided, and a third contact portion 16a and a fourth contact portion 16b are provided at positions facing the pressing portion 11 of the pressing body 9, respectively.

As shown in FIG. 3, each contact portion 15a, . 17a and 17b are electrically connected.

A rubber switch member 18 is interposed between the contact wiring board 14 and the pressing body 8.9. This includes contact part 15
Rubber contact portions 19a and 19b are provided opposite to the contact portions 16a and 15b, and a rubber contact portion 20a2Ql) is provided opposite to the contact portion 16a116b. Further, the upper surfaces of the rubber contact portions 19a, 19b, 20a, and 20b are in contact with the pressing body 8.9, and there are conducting pieces 19c and 19d inside.
20c20d are provided, and when pressed by the pressing body 8.9, they elastically buckle, and these conductive pieces 19C...20d
The circuit is closed by press-contacting the corresponding contact portions 15a, . . . 16b, respectively. When the pressing force is removed, it returns and the circuit opens.

Now, the rubber contact part 198% 20a is the contact part 15
After being pressed against a and 16a, the structure is such that it can be pushed forward by a further distance. That is, they are overstroke type rubber contact parts, and for example, as shown in FIG. 2, the rubber contact parts 19a and 19b are
C; Distance m from 19d to contact parts 15a, 15b
, n are set so that m<n. Since this difference in operating stroke is absorbed by the overstroke type rubber contact portion 19a, the contact portion is closed in two stages.

That is, the rubber contact portions 19a and 20a each constitute a two-stage actuation means 21.

The contact portion 15a is a manual raising contact portion of the window, and the contact portion 15b is an automatic raising contact portion of the window.

Further, the contact portion 16a is a manual lowering contact portion, and the contact portion 16a is a manual lowering contact portion.
6b is an auto-lowering contact portion. Therefore, the pressing body 8 is used for raising the window, and the suppressing body 9 is used for lowering the window.

Furthermore, an operating knob 25 is rotatably attached to the upper opening 2. This knob 25 is rotated in the direction of arrow 26 to advance the pressing body 8 to raise the window, and rotated in the opposite direction of arrow 27 to advance the suppressor 9 to lower the window. It is something.

Furthermore, a moderation means 30 consisting of a compression spring 28 and a pin 29 is attached to a hole in the center of the operation knob 25, and the pin 29 and the receiver are operated by friction with the groove 6 to adjust the moderation It gives me a sense of moderation.

Although this embodiment is constructed as described above, its operation will now be explained with reference to FIGS. 4 and 5.

When the operating knob 25 is rotated by a predetermined angle in the direction of the arrow 26, the pressing body 8 moves forward and downward, and the rubber contact portions 19a, 1
Lower 9b. Upon descent, the conductive piece 19C first comes into pressure contact with the manual lift contact portion 15a, and becomes in the state of first stage operation shown in FIGS. 4(a) and 4(b), thereby making it conductive. If this state is maintained, the window glass will rise, and when the operating knob 25 is returned to its original position, the conductive piece 19c will rise and separate, and the window glass will stop rising.

Next, when the operation knob 25 is turned again in the direction of the arrow 26, the conductive piece 19c first comes into pressure contact with the contact portion 15a, and the window glass starts to rise, but when the operation knob 25 is turned further by a predetermined angle, , since the rubber contact portion 19a, which is the two-stage actuating means 21, further absorbs the bending stroke difference after the pressure contact, the rubber contact portion 19b continues to descend, and the conductive piece 19d
comes into pressure contact with the auto-up contact portion 15b, and as shown in Fig. 5(A), (
The system enters the two-stage operation state shown in b). This two-stage operation results in automatic lifting.

When the operating knob 25 is rotated counterclockwise in the direction of the arrow 27, the window glass will be lowered manually at the first rotation position, and automatically lowered at the further rotated position. The details are almost the same as above, so
The explanation will be omitted.

Next, a second embodiment will be described with reference to FIGS. 6 to 10.

This embodiment is different from the first embodiment in terms of the suppressor and the two-stage actuating means provided thereon, and is otherwise the same, so similar parts are given the same numbers and detailed Further explanation will be omitted.

FIG. 6 is a sectional front view of the main part of this embodiment, FIG. 7 is a sectional side view taken along the line ■-■ in FIG. 5, and FIG. 8 is a cross-sectional side view taken along the line ■-■ in FIG.
(2) A cross-sectional side view taken along the line, FIGS. 9(a) and (b), and FIGS. 10(a) and (b) are action explanatory diagrams.

1 is a housing, and an operation knob 25 is rotatably attached to the upper opening. Inside there is a suppressor 51 for raising the window glass and a presser 6 for lowering the window glass.
1 is provided so that it can move forward and backward. The lifting pressing body 51 is composed of a first pressing member 52 constituting a two-stage actuating means 55 and a rod-shaped second suppressing member 53. The first suppressing member 52 includes a slider 52a that is slidably supported by the housing and has projections that engage grooves in the housing to prevent rotation.
and a coil spring 52b, and this spring 52b
Since the rubber contact portion, which will be described later, is pressed through the spring 52b, the difference in operating stroke is absorbed by the expansion and contraction of the spring 52b. That is, the first pressing member 52 constitutes a two-stage operating means 55.

Further, the suppressing body 61 has a similar configuration and is composed of a first pressing member 62 and a second pressing member 63, and the first pressing member 62
consists of a slider 62a and a coil spring 62b. Further, as in the case of the suppressing body 51, the first pressing member 62 constitutes a two-stage actuating means 65.

Furthermore, a contact wiring board 1 is provided in the lower opening of the housing 1.
4 and a rubber switch member 56 are provided. The contact wiring board 14 is the same as that of the first embodiment, and the first pressing member 52 has a manually rising contact part 15a, and the second pressing member 53 has a manual lift contact part 15a.
An auto-up contact portion 15b is provided on the first pressing member 62, a manual-down contact portion 16a is provided on the first pressing member 62, and an auto-down contact portion 16b is provided on the second pressing member 63, facing each other.

Further, the first pressing member 52.62 has a rubber contact portion 57a.
58a are opposed to each other, and rubber contact portions 57b and 58b are respectively opposed to the second pressing member 53.63. And the conductive pieces 57c, 58 of the rubber contact portion 57a158a
The operating stroke m of c is set smaller than the operating stroke n of the conductive piece 57d58d of the rubber contact portion 57b58b.

Next, to briefly describe the operation, now move the operation knob 25 to the arrow 27.
When the lowering member 61 is rotated by a predetermined angle in the direction, the conductive piece 58c of the first pressing member 62 of the lowering pressing member 61 comes into pressure contact with the contact portion 16a, resulting in manual lowering. Figure 9 (a) with the first stage activated.
, (b) is reached. When the operation knob 25 is further rotated, the second pressing member 63 is lowered or the first pressing member 62 is lowered.
The spring 62b is compressed to absorb the stroke difference,
The conductive piece 58d on the second pressing member 63 side presses against the contact portion 16b and automatically descends, resulting in the states shown in FIGS. 10(A) and 10(B).

In the above-mentioned embodiment, the two-stage actuating means is constructed of a coil spring or an overstroke type rubber contact portion, but is not limited thereto, and may be any means that can appropriately absorb the stroke difference.

Moreover, it is not limited to use for power windows of automobiles.

[Effects of the Invention] As described in detail above, the present invention includes a pair of pressing bodies disposed on the nozzing, two contact portions for each pressing body, and two contact portions with different operating strokes. A rubber contact part is provided for each two contact parts, and a two-stage actuation means is provided to absorb the stroke difference between the two contact parts.
The four contact parts can be opened and closed separately. Therefore, not only is it highly reliable and inexpensive like the conventional rubber switch, but it also greatly contributes to space saving.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional IE view of the first embodiment of the present invention, FIG. 2 is a cross-sectional side view taken along the line ■--RO in FIG. 1, and FIG. ) explanatory diagram, Figure 4 (a) (
B) and FIGS. 5(A) and 5(C) are action explanatory diagrams showing the operating state, FIG. 6 is a sectional front view of the second embodiment of the present invention, and FIG. 7 is the same as that shown in FIG. Figure 8 is a cross-sectional side view taken along the line ■-■, and Figure 8 is a cross-sectional side view taken along the line ■-■ in Figure 6.
b) is an explanatory view of the operation showing the operating state, FIG. 11 is an explanatory view of a conventional example, and FIG. 12 is an explanatory view of another conventional example. 1・・・・・・・・・・・・・・Housing 8.9
......Press body 14...
・・・・・・・・・Contact wiring board 1, 5 a, 15b・
...Contact part 16a16b...Contact part 18.56...Rubber switch member 19
a19b...Rubber contact part 20a 20b...Rubber contact part 21.2
2...Two-stage actuation means 51.61...
...Press body 52.62...First press member 52a, 6
2a...Slider 52b, 62b...Compression spring

Claims (3)

[Claims] (1) A housing, a pair of pressing bodies provided in the housing so as to be movable back and forth and spaced apart from each other, and a contact point provided in the housing facing them and having two contact portions facing each other for each of the pressing bodies. A wiring board, a rubber switch member that arranges a rubber contact part on each contact part with different operating stroke lengths for the contact parts of the same pressing body, and opens and closes each contact part by advancing and retreating the pressing body, and the above-mentioned pressing body. A rubber switch characterized in that it is provided with two-stage actuation means provided on the body or the rubber switch member to absorb the difference in actuation stroke of the two contact portions and actuate them in two steps. (2) The rubber switch according to claim 1, wherein the two-stage actuating means is constituted by an overstroke type rubber contact portion that is pressed by the pressing body and can be further pressed after being pressed into contact with the contact portion. (3) Each pressing member consists of a first pressing member and a second pressing member that are slidably supported by the housing, and the first pressing member is composed of a slider that is slidably supported by the housing and a slider that is slidably supported by the housing. 2. The rubber switch according to claim 1, further comprising a compression spring interposed between the rubber switch and the rubber contact portion, and wherein the two-stage actuating means is constituted by the first pressing member.