JPH0244428Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field] The present invention relates to a so-called push button type switch device that is operated in response to a pressing operation of an operating knob.

[Prior Art] Conventionally, a so-called push-push type switch with locking and release functions has been developed by providing a switch mechanism with a well-known locking mechanism consisting of a heart-shaped cam groove and a locking pin. A switch device is provided. Therefore, in such a switch device, especially in a switch device that is relatively small and has a relatively small locking mechanism, if the operating knob and the actuator of the switch mechanism are integrally connected, the operating knob may be forced to move. When the locking mechanism is pulled toward the front, an excessive load is applied to the heart-shaped cam groove of the locking mechanism, and there is a great possibility that the locking mechanism will be damaged. In order to deal with such a possibility, a switch device has been conventionally provided in which the operation knob and the switch mechanism are separated, as shown in FIG. That is, in this Figure 3, 1
is a multi-switch mechanism section, which has a plurality of actuators 1a, and the actuators 1a
An internal contact (not shown) is turned on in response to the pressure displacement. 2 is a switch case; 3 is a plurality of through holes formed in a row in the switch case 2;
Reference numeral 4 designates an operation knob inserted into each through hole 3 so as to be reciprocally movable, and is provided at each tip so as to press and displace the actuator 1a, and is normally brought into contact with the actuator 1a by a compression coil spring 5. It is energized as follows.

However, in such a conventional configuration, since the operating knob 4 must be provided with a large diameter portion 4a for receiving the compression coil spring 5, the operating knob 4 is divided into a shaft portion 4b and a cap portion 4c. The structure is such that the compression coil spring 5 is wound around the shaft portion 4b in a divided state, and then the shaft portion 4b and the cap portion 4c are integrated. For this reason, the conventional configuration has the problem of poor assembly workability and high costs.Moreover, the operating knob 4 must be constructed from two parts, and the compression coil spring 5 is essential for each operating knob 4. As the number of parts increases over time, there is also a problem in this aspect that increases costs.

[Purpose of the invention] Therefore, the purpose of the invention is to improve assembly workability and reduce the number of parts.
Therefore, it is an object of the present invention to provide a switch device which has effects such as being able to reduce costs.

[Summary of the invention] In order to achieve the above object, the present invention is a switch device in which the operating knob and the switch mechanism are separated, and in which an even number of operating knobs are arranged in parallel and each of them is moved to its original position. It is provided so as to be movable back and forth between the pressed position and a support protrusion is provided between adjacent ones of the even number of operating knobs, and the coil winding part is supported by the support protrusion and both ends are connected to the adjacent one. The switch mechanism is configured to include a torsion coil spring that is locked to the operating knob and urges the operating knob to come into contact with the actuator of the switch mechanism.

[Embodiment of the invention] Hereinafter, an embodiment of the invention will be described with reference to FIGS. 1 and 2. Parts that are the same as those in FIG. I will say this while

That is, reference numeral 6 denotes an even number of operation knobs inserted into the through holes 3 of the switch case 2 and arranged in parallel, and these are in their original positions shown by solid lines in FIG. It is provided so as to be movable back and forth between the pressing position and the pressing position. When the operating knob 6 is moved to the pressing position, the actuator 1a is pressed and displaced by the tip of the operating knob 6, and the switch mechanism section 1
is now working. Reference numeral 7 denotes a support protrusion, which is provided on the switch case 2 between adjacent operating knobs 6.
Now, 8 is a coil winding part 8a and arm parts 8a and 8b extending from both ends of this coil winding part 8a.
A torsion coil spring having a coil winding portion 8a is supported by being fitted into the support projection 7, and each arm portion 8b is locked to a locking projection 6a formed on the operation knob 6. , are provided so as to urge each operating knob 6 in a direction into which it comes into contact with the actuator 1a. The spring force of this torsion coil spring 8 is set smaller than the spring force of a spring (not shown) for returning the actuator 1a included in the switch mechanism section 1.

According to the configuration of this embodiment described above, when installing the torsion coil spring 8, the coil winding portion 8
a into the support protrusion 7, and at the same time insert the arm portion 8b.
It is sufficient to simply lock the locking projection 6a to the locking protrusion 6a. Therefore, unlike the conventional operating knob 4 (see FIG. 3), there is no need to divide the operating knob 6 into two parts, and the ease of assembly is dramatically improved. In addition, there is no need to divide the operation knob 6 into two in this way, and it can be made as one part, and since it is only necessary to provide one torsion coil spring 8 for each two operation knobs 6, the number of parts can be reduced. can be significantly reduced compared to conventional methods.

[Effects of the invention] As is clear from the above explanation, according to the invention, assembly workability can be dramatically improved, and the number of parts can be significantly reduced, resulting in lower costs. It has excellent effects such as:

[Brief explanation of drawings]

FIG. 1 is a cross-sectional plan view showing an embodiment of the present invention;
FIG. 2 is a perspective view showing the main parts of the same embodiment. Further, FIG. 3 is a diagram corresponding to FIG. 1 showing a conventional example. In the figure, 1 is a switch mechanism, 1a is an actuator, 2 is a switch case, 6 is an operating knob, 7 is a support projection, 8 is a torsion coil spring, 8a is a coil portion, and 8b is an arm portion.

Claims (1)

[Scope of utility model registration request] An even number of operation knobs arranged in parallel and capable of reciprocating movement between the original position and the pressed position, and an actuator arranged so that the operation knobs can move toward and away from each other. a switch mechanism that is operated in accordance with the displacement of the actuator when the actuator is moved to the desired position; a support protrusion located between adjacent operating knobs; and a coil winding part that is connected to the support protrusion. 1. A switch device comprising: a torsion coil spring supported by the actuator and having both ends engaged with the adjacent operation knobs to bias the respective operation knobs into contact with the actuator.