发明授权
- 专利标题： Alarm clock
- 专利标题（中）： 闹钟
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申请号： US877824申请日： 1978-02-15
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公开(公告)号： US4209969A公开(公告)日： 1980-07-01
- 发明人: Kiyoshi Kitai , Masuo Ogihara , Kozo Chimura , Nobuo Shinozaki
- 申请人： Kiyoshi Kitai , Masuo Ogihara , Kozo Chimura , Nobuo Shinozaki
- 申请人地址： JPX Tokyo
- 专利权人： Seiko Koki Kabushiki Kaisha
- 当前专利权人： Seiko Koki Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX52-33583 19770325; JPX52-33584 19770325; JPX52-36850[U] 19770325
- 主分类号： G04B23/04
- IPC分类号： G04B23/04 ; G04C21/16 ; G04C21/20 ; G04C21/00
摘要：
In a timepiece having a case and having a minute hand and an hour hand for indicating time, an alarm signaling device generates an alarm by detecting the phase of two sets of gears. One set of gears comprises an hour hand gear and an hour detecting gear and the other set comprises a minute hand gear and a minute detecting gear. The two sets of gears are concentrically mounted for rotation and the minute detecting gear is positioned between the minute gear and the one set of gears. The minute detecting gear has a contacting sliding contact with the minute gear. The alarm signaling device further includes an alarm signaling time setting wheel having an axis of rotation parallel to that of the two sets of gears and a first gear and a second gear engaging the minute detecting gear and the hour detecting gear respectively.
公开/授权文献
- US5886617A Composite tube transducer cylinder 公开/授权日：1999-03-23
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