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US 4,249,055 AGranted
Push button switch
AssigneeAlps Electric Co., Ltd.
InventorKatsuyuki Matsuo
Life of this patent
Estimating the term…
Abstract
A push button switch having a plurality of fixed terminals and an inversion leaf spring opposing to the fixed terminals and adapted to be actuated by actuator levers pivotally supported by two switch blocks juxtaposed with each other to extend in parallel with the direction of movement of the switch levers so that a depressing force of the switch levers actuates these two switch levers.
Claims5
A push button switch comprising:
- a frame;
- a switch lever;
- a first switch block accomodated by said frame and including
- (a) a carrier plate,
- (b) an inversion leaf spring member made of an electrically conductive material and secured to said carrier plate so as to extend in parallel with the direction of movement of said switch lever,
- (c) first and second terminals fixed to said carrier plate and adatped to be electrically connected to each other by said inversion leaf spring member, and
- (d) an actuator lever pivotally secured to said carrier plate and adapted to press said inversion leaf spring member in response to the movement of said switch lever;
- a second switch block accomodated by said frame and including
- (a) a second carrier plate,
- (b) a second inversion leaf spring member made of an electrically conductive material and secured to said second carrier plate so as to extend in parallel with the direction of movement of said switch lever,
- (d) third and fourth terminals fixed to said second carrier plate and adapted to be electrically connected to each other by said second inversion leaf spring member, and
- (d) a second actuator lever pivotally secured to said second carrier plate and adapted to press said second inversion leaf spring member in response to the movement of said switch lever, said second actuator lever being positioned downwardly from said actuator lever of said first switch block, and a coiled spring interposed between said switch lever and said actuator lever of said first switch block.
9 more elements
Dependencies are inferred from the claim text.