专利内容由知识产权出版社提供
专利名称：Electronic wristwatch with generator发明人：Shoichi Nagao申请号：US07/318212申请日：190125公开号：US04939707A公开日：19900703
摘要：An electronic wristwatch having an electric generator contained internallytherein is provided. The generator converts energy from mechanical to electrical energyto drive the electronic wristwatch. The oscillation of an oscillating weight producesmechanical energy as it oscillates. A wheel train transmits the mechanical energy to thegenerator by applying a torque to the generator. A limiter prevents transmission ofmechanical energy through the wristwatch when the torque to be applied to thegenerator exceeds a predetermined value and allows the mechanical energy to betransmitted when the torque to be applied to the generator is less than or equal to thepredetermined value.
申请人：SEIKO EPSON CORPORATION
代理人：Blum Kaplan
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