发明授权
- 专利标题: Two-stage switch assembly
- 专利标题(中): 两级开关总成
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申请号: US12393774申请日: 2009-02-26
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公开(公告)号: US07977587B2公开(公告)日: 2011-07-12
- 发明人: Vijai Rajagopal , Firmansyah Sulem , James Infanti , Timothy Kyowski
- 申请人: Vijai Rajagopal , Firmansyah Sulem , James Infanti , Timothy Kyowski
- 申请人地址: CA Waterloo
- 专利权人: Research In Motion Limited
- 当前专利权人: Research In Motion Limited
- 当前专利权人地址: CA Waterloo
- 代理机构: Blake, Cassels & Graydon LLP
- 代理商 Brett J. Slaney; Wilfred P. So
- 主分类号: H01H9/00
- IPC分类号: H01H9/00
摘要:
A switch assembly is provided to actuate a pair of switches using a single push key, e.g. for a camera that utilizes a first switch to activate an image focusing function and a second switch to activate a camera shutter. The switch assembly comprises a contact pad switch and a dome switch that are located laterally to one another. When the push key receives a first downward force, only the contact pad switch becomes activated and a first electric circuit is completed. When the push key receives a second downward force that is greater than the first force, the dome switch collapses and a second electric circuit is completed.
公开/授权文献
- US20100084252A1 TWO-STAGE SWITCH ASSEMBLY 公开/授权日:2010-04-08
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