Invention Grant
- Patent Title: Key switch structure
- Patent Title (中): 钥匙开关结构
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Application No.: US13061979Application Date: 2010-06-04
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Publication No.: US08481874B2Publication Date: 2013-07-09
- Inventor: Yasushi Takagi
- Applicant: Yasushi Takagi
- Applicant Address: JP Tokyo
- Assignee: Oki Electric Industry Co., Ltd.
- Current Assignee: Oki Electric Industry Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Rabin & Berdo, P.C.
- Priority: JP2009-152419 20090626
- International Application: PCT/JP2010/059561 WO 20100604
- International Announcement: WO2010/150640 WO 20101229
- Main IPC: H01H13/705
- IPC: H01H13/705 ; H01H13/7057 ; H01H13/7065

Abstract:
Provided is a key switch structure wherein a membrane sheet (7) having a movable contact point (7e) and a stationary contact point (7d) is provided between a housing (5), which supports a key top (1) so as to allow the key top to be pushed downward and a base plate (8). The movable contact point (7e) is brought into contact with the stationary contact point (7d) by a downward push to the key top (1), so that a switch is closed. In the key switch structure, the inside of a device's main body is completely shielded from outside air, and water is completely prevented from entering the inside of the device's main body. A plate (6) provided with a plurality of attachment holes (6g) corresponding to fixing pins (5f) of the housing (5) is provided on the membrane sheet (7), so that the fixing pins (5f) are secured in the attachment holes (6g) of the plate (6).
Public/Granted literature
- US20110162948A1 KEY SWITCH STRUCTURE Public/Granted day:2011-07-07
Information query
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