Resiliently deformable pushbutton switch having a contact member

Details Resiliently deformable pushbutton switch having a contact member Resiliently deformable pushbutton switch having a contact member

1991-01-22

1992-04-21

Recla, Henry J.

Electricity: circuit makers and breakers

Electric switch details

Actuators

200275, 200512, 200530, H01H 300, H01H 106

Patent

active

051070839

ABSTRACT:
A pushbutton switch comprising a main body and a contact member supported by thin radial flanges. The main body is integrally molded of synthetic resin and composed of a plurality of switch buttons with cavities and open bottoms, thin flexible portions provided in communication with the peripheries of the switch buttons, and a base plate provided in communication with the peripheries of the flexible portions for supporting the switch buttons via the flexible portions. The contact member is made of conductive material at least at its bottom and is inserted into the cavity of the switch button. The thin flanges project from the contact member and are pressed onto the inner surface of the switch button so as to support the contact member to be movable in the axial direction of the switch button. The thin flanges can absorb vibration generated when the switch button is pressed hard and prevent the contact member from vibrating and chattering. When the button switch is obliquely pressed, the relative angle between the contact member and the switch button is changed so that the contact member comes in perfect contact with the contact points. In addition, the manufacturing operation to insert the contact member into the cavity of the switch button is remarkably simple.

REFERENCES:
patent: 3699293 (1972-10-01), Portugall
patent: 4618744 (1986-10-01), Pope
patent: 5011728 (1991-04-01), Imae et al.

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