Keyswitch assembly

Details Keyswitch assembly Keyswitch assembly

1998-10-13

1999-07-20

Friedhofer, Michael A.

Electricity: circuit makers and breakers

Electric switch details

Actuators

200 5A, 200345, H01H 312, H01H 1370

Patent

active

059245530

ABSTRACT:
A keyswitch assembly suitable for being disposed on a computer keyboard that can prevent wobbling of its key cap when the key cap is at its elevated position. The keyswitch comprises a key cap capable of being urged to move between an elevated position and a pressed down position; a first connecting member connected to the cap and the substrate; a second connecting member connected to the cap and the substrate; and an elastic member disposed between the substrate and the key cap in such a way that it always urges the cap toward its first position. A positioning slot and a positioning pin or a guide slot and a protrusion formed on one connecting member are provided for keeping the cap from wobbling at its elevated position.

REFERENCES:
patent: 5457297 (1995-10-01), Chen
patent: 5512719 (1996-04-01), Okada et al.
patent: 5746308 (1998-05-01), Lin
patent: 5763842 (1998-06-01), Tsai et al.
patent: 5779030 (1998-07-01), Ikegami et al.
patent: 5799772 (1998-09-01), Sanda et al.

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