发明授权
- 专利标题： Acoustic alarm device for watches
- 专利标题（中）： 手表声学报警装置
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申请号： US392636申请日： 1982-06-28
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公开(公告)号： US4482257A公开(公告)日： 1984-11-13
- 发明人: Satoru Fukutome , Hideo Hatanaka , Motoyuki Saito
- 申请人： Satoru Fukutome , Hideo Hatanaka , Motoyuki Saito
- 申请人地址： JPX Tokyo
- 专利权人： Citizen Watch Co., Ltd.
- 当前专利权人： Citizen Watch Co., Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX54-89820 19790630; JPX54-89821 19790630; JPX54-89822 19790630
- 主分类号： G04C21/34
- IPC分类号： G04C21/34 ; G04G13/02 ; G04C23/02 ; G04C21/16
摘要：
An alarm device for a watch mounted in a recess provided in an upper portion of the watch case, for example in the upper portion of the band connecting portion of the watch case. The alarm device comprises a vibration plate secured to the bottom of the recess, a watertight sealing member, a cover for the vibration plate and securing means such as a screw for fixing the vibration plate to the recess through the watertight sealing member.
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