JPH0117060Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to an operating mechanism for a push-type switch, and particularly relates to a push-type switch that provides a substantially equivalent operating feel compared to push-type switches with different pressing forces.

Conventionally, push-type switches have been installed as shown in FIGS. 1 and 2. That is, numeral 11 in the figure is a printed wiring board, to which a plurality of (four in the illustrated case) push-type switch bodies 12 to 15 are connected. Each of the switch bodies 12 to 15 can be operated by pressing each of the operation parts 121 to 151 protruding from one end thereof.
It is used to switch each circuit (not shown) on the printed wiring board 11. In addition, the above switch body 1
Numbers 2 to 15 have different numbers of switching circuits, and the larger the number of switching circuits, the longer they are formed.

Each switch body 1 is mounted on a panel 16 provided substantially orthogonally to the printed wiring board 11.
Through holes 161 to 164 are formed at positions facing the operating portions 121 to 151 of Nos. 2 to 15, respectively. Each of the through holes 161 to 164 has a second
As shown in the figure, the controls 17,..., 17 are connected to the panel 1.
It is inserted from the inner side of 6. The upper part of the control elements 17, . 171 is formed.

Further, on the inner surface of the panel 16 facing the protrusion 171, there is a recess 16 that engages with the protrusion 171.
5 is formed. Then, the operator 17,
..., 17 are in contact with the operation parts 121 to 151 of the switch bodies 12 to 15.

Here, on the inner surface of the panel 16, a substantially columnar support 18 is protruded from the upper part of the recess 165 in the drawing. This support body 18 supports a spring member 20 via a screw 19 at its tip. That is, the spring member 20 includes a base portion 201 having a substantially U-shaped side surface, and a base portion 201 having a substantially U-shaped side surface.
A substantially tongue-shaped spring portion 2 protruding from the lower part in the figure of 01
02 to 205, and the base 20
1 is attached to the support 18. The spring portions 202 to 205 have their tip portions curved toward the inner surface of the panel 16 in a substantially U-shape. Furthermore, the spring parts 202 to 20
As shown in FIG.
It is in contact with an extending portion 172 that extends upward in the figure.

Assume that the operator 17 is now pressed in the direction of the arrow in FIG. Then, the operator 17 is rotated counterclockwise in the figure about the contact point between the protrusion 171 and the recess 165 of the panel 16. At this time,
The extending portion 172 of the operator 17 presses the spring portion 202 of the spring member 20. At the same time, the back surface of the operator 17 presses the operating section 121 of the switch body 12, and the circuit is switched.

After operating the switch body 12 in this way, when the operator 17 is stopped pressing, the spring member 2
0 spring part 202 and the operating part 1 of the switch body 12
21's own return force returns the operator 17 to its original position.

Here, as can be seen from the direction in which the spring part 202 of the spring member 20 presses the extension part 172 of the operating element 17, the spring part 202 is pressed against the extending part 172 of the operating element 17 when the operating element 17 is in the position shown in FIG. The operator 17 is slightly biased in a direction in which the back surface of the operator 17 comes into contact with the operating section 121 of the switch body 12.

The above applies to other spring parts 203 to 2.
The same applies to 05.

However, the conventional push-type switch operating mechanism as described above has the following problems. That is, when pressing each of the operation parts 121 to 151 of the switch bodies 12 to 15, the operating force varies depending on the number of switching circuits of each of the switch bodies 12 to 15. In other words, the greater the number of switching circuits, the greater the operating force required.

On the other hand, the operating elements 17, . , the biasing force of each spring portion 202 to 205 is made equal. Therefore, depending on the difference in the pressing force of the switch bodies 12 to 15, each of the operators 17,..., 17
This results in a difference in the force used when pressing the button, resulting in a problem of poor operational feel.

This invention was made in consideration of the above-mentioned circumstances, and the object is to provide an extremely good operating mechanism for a push-type switch that has a simple structure and does not impair the operating feel.

Hereinafter, one embodiment of this invention will be described in detail with reference to the drawings. In FIG. 3, the same parts as in FIG. 1 are indicated by the same symbols, and only the different parts will be explained here. That is, the difference from the conventional method is that by changing the width of each of the spring parts 202 to 205 of the spring member 20, the elastic force of each of the spring parts 202 to 205 is changed.

Specifically, for example, the width of the spring parts 202, 205 corresponding to the switch bodies 12, 15, etc., which can be operated with a relatively weak operating force is increased to increase the elastic force, and the switch body 13, which requires a strong operating force, is made wider. ,14
The widths of the spring parts 203 and 204 corresponding to the above-mentioned parts are narrowed to weaken their elastic force.

According to such a configuration, for example, when operating the operator 17 corresponding to the switch body 12, the operator 17 has a spring portion 202 with a strong elastic force and a switch body 12 that can be operated with a relatively weak operating force. This means that the operation section 121 will be moved. Further, when operating the operator 17 corresponding to the switch body 14, the operator 17 is connected to the spring portion 204 with a weak elastic force.
This means that the operation section 141 of the switch body 14, which requires a strong operation force, is moved.

Therefore, the respective operators 17, 17 corresponding to the switch bodies 12, 14 can be operated with substantially the same operating force, and the operation feeling can be made uniform.

Furthermore, the means for changing the elastic force of each of the spring parts 202 to 205 of the spring member 20 is not limited to changing the width, but may also include changing the thickness or changing the material. It is sufficient if it is formed integrally.

Note that this invention is not limited to the above-mentioned embodiments, and can be implemented with various modifications without departing from the gist thereof.

Therefore, as described in detail above, according to this invention, it is possible to provide an extremely good operating mechanism for a push-type switch that has a simple structure and does not impair the operating feel.

[Brief explanation of the drawing]

1 and 2 are an exploded perspective view and a side sectional view showing the operating mechanism of a conventional push-type switch, respectively, and FIG. 3 is an exploded perspective view showing an embodiment of the operating mechanism of the push-type switch according to this invention. It is. 11...Printed wiring board, 12 to 15...Switch body, 16...Panel, 17...Controller, 18
...Support, 19...Screw, 20...Spring member.

Claims (1)

[Scope of utility model registration request] A plurality of push-type switch bodies with different pressing operation forces, a plurality of operators that respectively engage with the plurality of switch bodies and can be operated by pressing independently, and a biasing force in the return direction is applied to each of the plurality of operators. In the operating mechanism of a push-type switch, the spring member applies different biasing forces to the plurality of operators depending on the pressing force of the plurality of switch bodies, and An operating mechanism for a push-type switch, characterized in that substantially the same operating feeling can be obtained when operating any of the operating elements that engage with the switch body.