Invention Grant
- Patent Title: Timepiece
- Patent Title (中): 钟表
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Application No.: US14447Application Date: 1979-02-23
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Publication No.: US4261046APublication Date: 1981-04-07
- Inventor: Tsuneyoshi Ono , Toshimasa Ikegami
- Applicant: Tsuneyoshi Ono , Toshimasa Ikegami
- Applicant Address: JPX Tokyo
- Assignee: Kabushiki Kaisha Suwa Seikosha
- Current Assignee: Kabushiki Kaisha Suwa Seikosha
- Current Assignee Address: JPX Tokyo
- Priority: JPX53-20321 19780223
- Main IPC: G04C3/14
- IPC: G04C3/14 ; G04B19/247 ; G04C3/00 ; G04C9/00 ; G04C17/00 ; G04B19/24 ; G04B3/00 ; G04B19/20 ; G04B27/00
Abstract:
In an analog timepiece having calendar displays for day and date, a transducer operating independently of the hand driving transducer, feeds, that is, updates the calendar wheels automatically on a daily basis. Synchronization of the daily day and date changes is provided by a twenty-four hour wheel cooperating with the time-keeping mechanism. For setting the calendar displays, turning the stem in one direction polarizes a magnet and advances the day wheel, while turning the stem in the other direction reverses the polarity of the magnet and advances the date dial until desired settings are accomplished. The date advancing transducer can be automatically actuated for end of the month date adjustments.
Public/Granted literature
- US5589280A Metal on plastic films with adhesion-promoting layer Public/Granted day:1996-12-31
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