Invention Grant
- Patent Title: Push button switch cover and method for manufacturing same
- Patent Title (中): 按钮开关盖及其制造方法
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Application No.: US09436412Application Date: 1999-11-09
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Publication No.: US06388218B1Publication Date: 2002-05-14
- Inventor: Hitoshi Ando , Takeo Shirasawa , Fumio Ohshima , Noriyoshi Kiyosawa , Hirohide Sato
- Applicant: Hitoshi Ando , Takeo Shirasawa , Fumio Ohshima , Noriyoshi Kiyosawa , Hirohide Sato
- Priority: JP10-364919 19981222; JP11-084941 19990326
- Main IPC: H01H110
- IPC: H01H110

Abstract:
A push button switch cover capable of enhancing positional accuracy between a cover sheet and dish-shaped metal springs, thereby highly improving keying characteristics and reducing manufacturing cost. The cover sheet is provided on a front surface thereof with key tops and on a rear surface thereof with pressing projections in correspondence to the key tops. The dish-shaped metal springs are each bonded to a respective one of the pressing projections by an elastic adhesive section while keeping an apex of the dish-shaped metal spring abutted against a central portion of the pressing projection.
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