JPS63228538A - Push button apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a push button device that can be used in the operation section of various types of equipment.

2. Description of the Related Art In general, a push button device in which a switch and a push button are separated has a shaft 3 in the center of the push button 2, and a return compression spring 4 is attached around the shaft, as shown in FIG. and a hole 6 for attaching a push button provided in the operation panel 1.
Insert the shaft 3 into the bottle 6 to prevent it from being pulled out.
etc. were inserted into the shaft 3. 7 is a switch provided inside the operation panel, and 8 is its mounting member.

Problems to be Solved by the Invention However, such conventional push button devices have the following problems as well as poor workability due to the insertion of a separate pin 6 etc. to prevent removal. . In other words, in the conventional push button device, the shaft 3 is the only part that engages with the operation panel 1, and there is no problem as long as the center part of the push button is pressed, but there is a problem when pushing the end part F3. It is.

As mentioned above, since only the shaft 3 engages with the operation panel 1, the button 2 must always move in parallel even when the end F3 is pressed, making it difficult to secure the stroke.
The diameter d2 of the pushbutton engagement hole 5 is the diameter d1 of the pushbutton shaft 3.
The shaft holding part of the hole S was made long so that it could move in parallel even if the end was pushed.

However, when the end is pressed, the upper and lower parts A and the opening of the shaft holding part 5 come into pressure contact with each other and slide while rubbing against each other, resulting in awkward movement, poor return, and poor durability. There were times when it caused trouble.

In addition, in order to counter the above-mentioned problems caused by the sliding movement, the solution was to apply grease or the like around the shaft.

On the other hand, as a method for improving the problems in the conventional system, the length l of the shaft holding part 6 is shortened, and the diameter d2 of the hole 6 is reduced.
There are some cases in which the diameter d1 of the shaft 3 is made as large as possible;
Naturally, when the end F3 is pushed, the other end is lifted by a compression spring provided around the shaft and escapes upward, making it difficult to secure a stroke at the shaft. In addition, the inclination becomes large, and the gap with the surroundings of the button also needs to be made larger than necessary, which is unfavorable both in terms of appearance and operation.

The present invention solves these conventional problems and provides a push button device with a simple structure, improved workability and operability, and excellent appearance.

Means for Solving the Problems The push button device of the present invention has two tabs on both ends of the push button, separate from the operation shaft, which are inserted and engaged from the front of the operation panel, and when the end of the push button is pressed. , are configured to operate using claws located symmetrically to each other as fulcrums.

Function: In the push button device of the present invention, tabs are provided at both ends of the button, separate from the operation shaft, and the tabs are inserted and engaged from the front of the operation panel, so that when the end of the push button is pressed, the tabs at the symmetrical positions are activated. Because it operates as a fulcrum, pressing the center part of the push button will cause the button to operate in the same way as before, but pressing the end will cause it to operate like a seesaw switch with the claw as the fulcrum, and the sliding part will be smaller than before. This is a push button device with a small number of buttons and smooth operation.

Embodiments Hereinafter, push button devices according to embodiments of the present invention will be explained with reference to the drawings. As shown in FIG. 2, the push button 2 of the present invention
has a shaft 3 in the center for operating the switch 7, and claws 9 on both ends thereof for mounting on the operation panel 1, and reference numeral 10 indicates a mounting hole provided on the operation panel 1 for engaging the claws 9. 4 is a return compression spring provided around the axis of the push button 2.

As shown in FIG. 1, the push-button device with such a structure is such that when the end F2 is pressed, the tab 9 on the opposite side of F2 is pressed.
If the movement is performed using a as a fulcrum, the effective angle S at the shaft portion 3 can be set at the time of design. Of course, depending on the inclination angle θ necessary to ensure the stroke S in the shaft portion 3, the hole 1o on the operation panel side that engages with the claw 9 and the shaft 3;
5 is a hole having the minimum necessary clearance, so that the number of sliding parts as in the conventional example can be reduced. In the conventional example, in order to ensure the stroke at the shaft when the end is pressed, the push button is moved in a parallel state, so the push button is forced to slide under uneven load, which impairs the smoothness of the operation. (Also, if there is a large gap between the shaft and the hole, there is no claw 9a that serves as a fulcrum as in the present proposal, so when end F2 is pushed, the opposite side will escape upwards due to the compression spring 4.
(movement toward the opposite operation side), the setting of the effective stroke becomes unstable, and the inclination angle θ also increases, resulting in poor operability.

In addition, by pressing the diameter of the engaging hole 1° with respect to the width of the claw 9 so that the gap is minimized, the vertical position of the push button in Fig. The inclination, etc. in the state) is also improved, and the appearance is also favorable.

Effects of the Invention As described above, the push button device of the present invention has two tabs on both ends of the push button in addition to the operation shaft, which are inserted and engaged from the front of the operation panel, and when the ends are pressed, they touch each other. The structure is such that the claws at symmetrical positions are used as fulcrums to operate.In addition to improving installation (workability), it is possible to set the effective stroke of the shaft at the time of design, and it also eliminates unreasonable sliding parts. It also improves the properties and appearance (improved design) and is equally advantageous in practical terms.

[Brief explanation of drawings]

FIG. 1 is a partial sectional view showing an end operation state of an embodiment of the present invention, FIG. 2 is a schematic sectional view showing the configuration in a non-operating state, and FIG. 3 is a schematic sectional view of a conventional example. . 1...Operation panel, 2...Push button, 3...Shaft, 4...Coil spring, 6...
...Removal stop pin, 7...Switch,
9... Tsume, 1Q River... Hole. Name of agent: Patent attorney Toshio Nakao and 1 other person! −
control panel? -Manufacturing button 3゛-axis 4-film♀ Fig. 1
7 7. -Yo Itsu-? -Claw Q-L Fig. 2

Claims (1)

[Claims] The device has a push button attached from the surface of the operation panel and a switch operated by the push button, and the push button has a shaft in the center for operating the switch, and a return compressor is mounted around the shaft. It is engaged with a coil spring, and has claws at both ends that engage with mounting holes provided in the operation panel, and by pushing the end of the push button, the shaft is moved around the claws at symmetrical positions as a fulcrum. A push button device configured to be pressed by the switch.