Keytop plate and method for producing the same

Details Keytop plate and method for producing the same Keytop plate and method for producing the same

1997-12-01

2000-02-08

Friedhofer, Michael

Electricity: circuit makers and breakers

Solid contact

Membrane type

29622, 200 5A, 200341, H01H 1370, H01H 312

Patent

active

060230339

ABSTRACT:
A keytop plate comprises keytops (21) formed by integrally molding a molding resin part (25) with a synthetic resin film (23), and a molded elastomer sheet (molded elastomer member) (11) attached to the keytops (21). The molded elastomer sheet (11), other than in the areas to which the keytops (21) are attached, has no through-holes, whereby a water-proof property is provided. The keytops (21) are easily depressed even when the molded elastomer sheet (11) is securely held at its peripheral portion. A hard tactile feeling may be obtained when the keytops (21) are depressed, since the keytops (21) are formed from the synthetic resin film (23) and the molding resin part (25).

REFERENCES:
patent: 4395817 (1983-08-01), Asada et al.
patent: 4937408 (1990-06-01), Hattori et al.
patent: 5234744 (1993-08-01), Kenmochi
patent: 5280146 (1994-01-01), Inagaki et al.
patent: 5362934 (1994-11-01), Inagaki et al.
patent: 5399821 (1995-03-01), Inagaki et al.
patent: 5475192 (1995-12-01), Inagaki et al.
patent: 5613599 (1997-03-01), Inagaki et al.

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