Scissor-leg structural key and its switch device, and a keyboard applying the key
OwnerJianping Liinventor
Life of this patent
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Abstract
A switch device, having a reset assistant part arranged at the second end of a male leg, and a ram; the reset assistant part being provided with a holding station, both sidewalls of which are each provided with a saddle, both sides of the ram being provided, with a cam matching with the saddle, the ram is hung from the saddle through two cams. Accordingly, a photoelectrical type switch of scissor-leg structure is realized, and the key is enabled to have an obvious stage sense and sound.
Claims28
A switch device comprising resettable scissor-legs which include a male leg and a female leg, forming a scissor structure, and a mounting receptacle, a first end of the male leg hinged to the mounting receptacle, and a first end of the female leg slidably arranged in the mounting receptacle a reset assistant part arranged a second end of the male leg, the reset assistant part provided with a holding station, both sidewalls of which are each provided with a saddle:
- a ram, both sides of which are provided with a cam matching with the saddle, the ram hanged from the saddles through the two cams;
- the mounting receptacle provided with a recess portion for receiving the ram;
- the ram arranged on the sidewalls of the recess portion when the scissor-leg structure is in an original position, and moved in a direction capable of dropping into the recess portion when the scissor-leg structure is depressed, and dropped in the recess portion after the scissor-legs are depressed into a stagnation point, and the saddle resetting the ram during the scissor-leg structure reset.
The scissor-leg structural key according to the claim characterized in that, a primary spring is arranged at a middle of the scissor-leg for actuating the scissor-leg to reset;
- one end of the primary spring is arranged at the mounting receptacle;
- the key cap depresses the primary spring and the scissor-leg when the key cap is depressed, and the primary returns after external force is removed, and actuates the key cap and the scissor-leg to reset.
Dependencies are inferred from the claim text.