Key switch

Details Key switch Key switch

1993-12-23

1995-10-31

Kincaid, Kristine L.

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

200344, 200517, H01H 312

Patent

active

054631955

ABSTRACT:
A key switch of the invention includes a key top having a face on which various characters are displayed and a back face having an engaging portion, a guide support member having two hinge members and a holder plate. The holder plate is provided with support portions which are elastically moved when pushed down by the lower portion of the guide support member to pinch and support the lower portion, and further the engaging portions of the key top can also pinch and support the upper portion of the guide support member by pushing the upper portion. Accordingly, according to the key switch, the fabrication of the guide support member and the holder plate and the fabrication of the guide support member and the key top can be extremely easily performed, and the operating performance of the key top is improved.

REFERENCES:
patent: 2550250 (1951-04-01), Huppert
patent: 3174685 (1965-03-01), Swanson
patent: 3849611 (1974-11-01), Walker, Jr.
patent: 4000389 (1976-12-01), Misson et al.
patent: 4433225 (1984-02-01), Cowles
patent: 4560844 (1985-12-01), Takamura et al.
patent: 4560845 (1985-12-01), Takamura et al.
patent: 4580022 (1986-04-01), Oelsch et al.
patent: 4709128 (1987-11-01), Odagawa
patent: 4735520 (1988-04-01), Suzuki et al.
patent: 4902862 (1990-02-01), Oelsch et al.
patent: 5278372 (1994-01-01), Takagi et al.
patent: 5280147 (1994-01-01), Mochizuki et al.

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