Depression switch and multidirectional input device

Details Depression switch and multidirectional input device Depression switch and multidirectional input device

2005-09-20

2005-09-20

Scott, James R. (Department: 2832)

Electricity: circuit makers and breakers

Multiple circuit control

Combined pivoted and reciprocating contact

C200S00600C, C200S018000

Reexamination Certificate

active

06946606

ABSTRACT:
A depression switch700in a multidirectional input device A comprises a key top710which is provided below an operating member400so as to penetrate a bottom plate portion211of a lower case220and to be movable in a vertical direction, an elastically deformable dome-shaped movable contact piece720abutting the key top710moved downward, one fixed electrode731provided below an end portion721of the movable contact piece720on a substrate100,the other fixed electrode732provided at the position of contacting a central portion722of the elastically deformed movable contact piece720on the substrate100and a spacer740for electrically connecting the end portion721of the movable contact piece720to the one fixed electrode731.

REFERENCES:
patent: 4074088 (1978-02-01), Keough et al.
patent: 4778952 (1988-10-01), Watkins et al.
patent: 5459292 (1995-10-01), Nagano et al.
patent: 5691517 (1997-11-01), Yamamoto et al.
patent: 6344620 (2002-02-01), Nakamura
patent: 2001-084876 (2001-03-01), None

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