Keyswitch for computer keyboards

Details Keyswitch for computer keyboards Keyswitch for computer keyboards

1999-10-18

2000-07-18

Friedhofer, Michael

Electricity: circuit makers and breakers

Electric switch details

Actuators

H01H 1370

Patent

active

060910364

ABSTRACT:
A keyswitch is provided that comprises a key top, a rubber cone, a first lever, a second lever, and a base. An operation surface and an assembly surface respectively form at the top end and the bottom end of the key top. A penetrating accommodation room is installed on the base. The rubber cone is installed between the key top and the base. The first lever and the second lever are installed between the assembly surface of the key top and the base. The two levers are in scissors arrangement. The top ends of the two levers are connected to the assembly surface of the key top. The bottom ends of the two levers are connected to the base. The accommodation room is disposed below the two levers. A bottom board is installed at the bottom of the base. When the two levers are jointly moved downwards via the key top, they can sink into the accommodation room. A low-profile keyswitch can be acquired under the condition of the same key pressing stroke. The compactness requirement of modern products can thus be achieved.

REFERENCES:
patent: 5630501 (1997-05-01), Tsay
patent: 5767468 (1998-06-01), Tsai
patent: 5823324 (1998-10-01), Tsai
patent: 5829579 (1998-11-01), Tsai
patent: 5874696 (1999-02-01), Hayashi et al.
patent: 5947616 (1999-09-01), Liang

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