JPH01274326A - Switch - Google Patents

Abstract

PURPOSE:To simplify the assembly of the switch of an impact resistance operation type by providing buffer parts in the intermediate part of an actuator, and boundingly connecting the buffer part with the buffer engagement part of a housing. CONSTITUTION:An actuator 3 in which buffer parts 3a and 3a are provided at its intermediate part is rotatably fixed pivotally to a housing 2. A buffer engagement part is formed in the housing 2. When the actuator 3 is rotated to press a push button 4 by an outer force, first the buffer parts 3a and 3a are boundingly connected to the projection 2a of the buffer engagement part, moreover climb across the projection 2a, the impact of an outer force is weakend with a catch released, and then the button 4 is pressed by the actuator 3. This enables the device to relax an outer impact to be simply assembled without the use of parts such as a spring, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a switch, and more particularly to a switch that can withstand external force.

[Conventional technology]

Conventionally, this switch has a housing 10 to which one end of an actuator U is rotatably attached, as shown in Fig. 4.
A pushbutton m driven by the actuator 11 to open and close the switch body 14 in the housing 1a is compressed and positioned between the actuator 11 and the housing 10, and is applied to the switch body 14 via the actuator 11. It is composed of a coil spring L that cushions the impact force during operation.

[Problem to be solved by the invention]

The switch shown in FIG. 4 described in the prior art section uses a coil spring to buffer the impact force applied to the push button field and the switch body 14 during operation, but this increases the number of parts and requires a coil spring. There was a problem in that it was difficult to assemble and install the blur, making assembly difficult.

The present invention has been made to address and improve the above-mentioned problems, and its purpose is to provide a switch that is easy to assemble and can withstand shock operations without increasing the number of parts.

[Means to solve the problem]

The present invention is a shock-resistant operation type switch that is easy to assemble, and is characterized in that the buffer portion of the actuator contacts the buffer engagement portion of the housing before the actuator contacts the push button. That is.

〔Example〕

An embodiment of the present invention will be described below based on the drawings.

Figures 1 (al) to 2 (c) show an embodiment of the present invention, in which 1 is a switch body housed in a housing 2 consisting of a pace and a case. is provided with an inclination, and a protrusion 2a serving as a buffer engagement portion with which an actuator 3 (to be described later) comes into contact is provided in the middle of the protrusion 2a.The actuator 3 is in the form of a flat plate, with rotation fulcrums 2b formed on the housing 2 on both sides of one end. , 2b are formed to be engaged with and rotatably supported by holes 3b, 3b.

Also, both sides of the middle part of the actuator 3 are cut out, and a buffer part 3a is bent and extended toward the housing 2.
, 3a are formed, and as shown in the figure, before an external operating force is applied to the actuator 3, the actuator 3 is held in the state shown by the broken line or the state shown by the solid line, and the buffer parts 3a, 3a of the actuator 3 are 3a is housing 2
It comes into contact with the protrusion 2a. Reference numeral 4 denotes a push button which is protruded from a hole provided in a part of the housing 2 and faces the actuator 3 so as to be driven by the actuator 3 to operate the switch body 1. 5.5.5 is a number of terminals, which are electrically connected to the switch body 4 and protrude from the back surface of the housing 2.

At the moment before an impactful operating force F is applied to the tip of the actuator 3 from the outside, a gear gap G exists between the actuator 3 and the push button 4, as shown in Fig. 2 (a).
The buffer parts 3a, 3a of the actuator 3 abut against the protrusion 2a of the housing 2.

As the operating force F is further applied to the actuator 3,
The actuator 3 moves and comes into contact with the pushbutton 4 as shown in FIG. 4(b). During this time, the buffer portions 3a and 3m of the actuator 3 are in elastic contact with the protrusion 21 of the housing 2, and the operating force F applied to the push button 4 is buffered. Further, when the actuator 3 is moved by further application of the operating force F, the tips of the buffer parts 3a, 3a ride over the protrusion 2a of the housing arm, and are no longer caught, causing the buffering force to weaken. The switch body 1 is operated by being pushed in.

Incidentally, the Wj-like operating force F provided on the actuator 3
If the buffer section 3a can absorb the gfI impact force before the actuator 3 contacts the push button 4, the cut-and-raised section 3c provided in the middle of the actuator 3 can be inserted into the notch of the housing 2, as shown in Figure @3. However, it is not limited to this embodiment, such as engaging with the portion 2c.

〔Effect of the invention〕

As described above, before the actuator contacts the push button, the buffer section provided in the actuator is brought into contact with the buffer engagement section of the housing, thereby making it possible to use a coil spring or the like for shock/force buffering. This eliminates the need for special members, reduces the number of parts, and facilitates assembly, making it possible to construct an impact-operated switch that is easy to manufacture.

[Brief explanation of the drawing]

1(a) to 2(e) each show an embodiment of the present invention, in which FIG. 1(a) is an exploded perspective view, the same figure (bl is a side view, and FIG. 2(a) is an exploded perspective view, a) , (bl, (
6) The figure is an explanatory diagram showing the five operating states. FIGS. 3(a) and 3(th) show other embodiments of the present invention, in which FIG. 3(a) is an exploded perspective view and FIG. 3(b) is a side view. FIG. 4 is a side view showing a conventional example. 1...Switch body, 2...Housing, 2a...
・Protrusion, 3... Actuator %3a... Buffer part,
4... Press button.

Claims (2)

[Claims] (1) In a switch in which one end of an actuator is rotatably attached to a housing housing a switch body, and the switch body is opened and closed by the actuator via a push button, a buffer is provided in the middle of the actuator, and a buffer is provided in the housing. A switch characterized in that an engaging portion is provided, and the buffering portion of the actuator is brought into contact with the buffering engaging portion of the housing before the actuator comes into contact with the push button. (2) The switch according to claim 1, wherein the buffer portion of the actuator is a notch bent in the direction of actuator operation, and the engaging portion of the housing is a protrusion.