JPH073541Y2 - Push-button switch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to a push button switch.

(Prior art) For push button switches, the operating state of the switch body (ON
Some are configured to notify the operator by an optical display whether it is OFF or OFF).

FIG. 2 shows a push button switch A having the light display function. On the board B, the switch body C and the light source (LED) D are arranged in parallel, while on the operation panel E,
A push button F is loosely fitted so as to cover the switch body C and the light source D from above, and the push button F is freely retractable.
Is composed of a button body F'that contacts a switch plunger C'of the switch body C and a translucent block F "located above the light source D. In the push button switch A, for example, the push button F is used. When switch body C is turned on by pressing, light source D is lit,
The operator is configured to visually recognize the light through the light transmitting block F ″.

(Problems to be solved by the invention) By the way, in the push button switch A having the above configuration, as is clear from the figure, the movement center axis f- of the push button F is
f is largely deviated from the movement center axis line c-c of the switch plunger C ′ in the switch body C. Therefore, there is no problem when the push button F is pressed down on the axis c-c, but the axis c-
When the part deviated from c is pressed, the push button F is tilted as shown in FIG. 2 (b). When the push button F is tilted when it is pushed, the pushing force is not sufficiently transmitted to the switch body C, so that the operation of the switch cannot be performed reliably.

In order to eliminate the above-mentioned inconvenience, it is conceivable that a push button is fixedly mounted on the switch plunger, but in such a configuration, when an assembly error occurs between the board and the switch body and the board and the operation panel. Since the push button F may be caught in the button hole E ′ of the operation panel E, high assembly accuracy is required and productivity is lowered.

In view of the above situation, the present invention can reliably operate the switch body regardless of where the push button is pressed.
Moreover, it is an object of the present invention to provide a push button switch with good productivity.

[Constitution of device]

(Means for Solving the Problem) In the present invention, the push button is loosely fitted in the operation panel while the push button is moved forward and backward, while the switch main body is arranged by displacing the movement center axis of the switch plunger relative to the movement center axis of the push button. The push button is fixed to the switch plunger of the switch body, and the push member is in contact with the entire bottom surface of the push button. The above object is achieved by moving the switch plunger back and forth through the pressing member when the switch is moved forward and backward.

(Operation) No matter where the push button is pushed, the pushing force is transmitted to the switch plunger of the switch body via the pushing member. In addition, since the switch body and the push button are separated from each other, highly accurate alignment between the elements is not required.

(Embodiment) Hereinafter, the present invention will be described in detail with reference to the drawings illustrating an embodiment.

FIG. 1 shows an embodiment in which the push button switch according to the present invention is applied to a push button switch having an optical display function.

A button hole 1a is formed in the operation panel 1, and a push button 10 is loosely fitted in the button hole 1a so as to be movable back and forth along the vertical direction in the drawing. This push button 10 is configured by arranging a button body 11 and a translucent block made of a transparent resin side by side and integrally assembling them, and further, the bottom surface 10a of the push button 10 is formed into a flat surface. .

On the other hand, the switch body 20 is installed on the substrate 2,
The switch body 20 is composed of a switch casing 21 fixed to the substrate 2 and a switch plunger 22 that moves forward and backward with respect to the switch casing 21 in the vertical direction in the drawing. The switch main body 20 is arranged immediately below the button main body 11 of the push button 10. Therefore, the movement center axis line o-o of the switch plunger is relative to the movement center axis line p-p of the push button 10. It is greatly deviated.

Further, a light source 3 as an electric component is provided in parallel with the switch body 10 on the substrate 2, and the light source 3 is projected on a projection area of the push button 10, that is, a bottom surface 10a of the push button 10. It is arranged in the range, specifically, in the region directly below the translucent body block 12 in the push button 10.

Between the push button 10 and the switch body 20, a pressing member 30
Is installed. The pressing member 30 is composed of a flat plate portion 31 and a mounting portion 32 projecting downward from the flat plate portion 31, and by fitting the mounting portion 32 into the recess 22a of the switch plunger 22, the pressing member is formed. 30 is fixed to the switch plunger 22. Push button on the flat plate 31
10 is placed, and the flat plate portion 31 is formed in such a size as to come into contact with the entire bottom surface 10a of the push button 10. A transparent window 33 is formed in the flat plate portion 31.

When the push button 10 is pushed down from above the switch plunger 22 as indicated by an arrow V, the pushing force is transmitted to the switch plunger 22 through the pushing member 30, and the switch plunger 22 is pushed down, so that the switch body is pushed. 20 turns ON. As a result, the light source 3 is activated, and the light from the light source 3 is visually recognized by the operator through the translucent block 12.

On the other hand, as shown by the arrow W, even when the push button 10 is pressed at a position deviated from the movement center axis line o-o of the switch plunger 22, the pressing force acts on the switch plunger 22 via the pressing member 30. To do. That is, the pressing force is applied from the bottom surface 10a of the push button 10 to the flat plate portion 3 of the pressing member 30.
1 is transmitted to the switch plunger 22 from the mounting portion 32 of the pressing member 30, and the amount of movement that is depressed by pressing the push button 10 becomes the amount of depression of the switch plunger 22 as it is, and the switch body 20 is securely turned on. Becomes Also,
When push button 10 is pressed, the pushing force is
Since the entire surface of the bottom surface 10a of the switch is brought into contact with the flat plate portion 31 of the pressing member 30, the push button 10 does not tilt and the switch body 20 operates reliably. Further, since the push button 10 is only placed on the pressing member 30, it can be moved in the left-right direction in the figure with respect to the switch body 20.
Therefore, when the push button switch is assembled, the push button 10 can be caught on the peripheral portion of the button hole 1a even if the three mounting positions of the operation panel 1, the substrate 2, and the switch body 20 are slightly displaced. Nothing, push button
10 always moves smoothly back and forth.

It is needless to say that the present invention is not only applied to push button switches having an optical display function, but can also be effectively applied to push button switches for various purposes.

[Effect of device]

As described above in detail, according to the push button switch according to the present invention, the switch plunger in the switch body is provided with the pressing member that comes into contact with the entire bottom surface of the push button. The pressing force is transmitted to the switch plunger of the switch body via the pressing member, so that the switch operation is always performed reliably. Further, according to the present invention, since the push button and the switch main body are configured as separate bodies that abut each other via the pressing member, even if a position shift occurs between the operation panel and the switch main body during assembly. The positional deviation is eliminated by the relative movement between the push button and the switch body. Therefore, high-precision positioning work is not required, so that good productivity can be obtained.

[Brief description of drawings]

FIGS. 1 (a) and 1 (b) are side sectional views showing the configuration and operation mode of a push button switch according to the present invention, and FIGS. 2 (a) and 2 (b) are configurations of a conventional push button switch and It is a side sectional view showing a mode of operation. DESCRIPTION OF SYMBOLS 1 ... Operation panel, 10 ... Push button, 10a ... Bottom surface, 20 ... Switch main body, 22 ... Switch plunger, 30 ... Pressing member.

Claims (1)

[Scope of utility model registration request] 1. A push button which is loosely fitted to an operation panel so as to be able to move forward and backward, a switch main body provided by displacing a movement center axis of a switch plunger with respect to a movement center axis of the push button, and a projection of the push button. An electric part arranged in parallel with the switch main body in a region, and a pressing member fixed to the switch plunger while being in contact with the entire bottom surface of the push button, and when the push button is moved back and forth, A push button switch, characterized in that the switch plunger is configured to move forward and backward through a pressing member.