发明授权
- 专利标题: Printing head of the impact type
- 专利标题(中): 打印头的冲击类型
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申请号: US387674申请日: 1989-07-31
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公开(公告)号: US4986676A公开(公告)日: 1991-01-22
- 发明人: Koichi Kimura , Takeshi Matsumoto , Fumio Otsuka
- 申请人: Koichi Kimura , Takeshi Matsumoto , Fumio Otsuka
- 申请人地址: JPX Tokyo
- 专利权人: Seikosha Co., Ltd.
- 当前专利权人: Seikosha Co., Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX63-189864 19880729
- 主分类号: B41J2/275
- IPC分类号: B41J2/275
摘要:
A printing head includes a plurality of printing levers, each having a front end portion and a rear end portion, with each printing lever being rotatable about its rear end portion. An electromagnetic drive is operable to individually drive the printing levers in a driving direction so as to apply a printing force to printing elements operated by the printing levers. Resilient springs operatively associated with the printing levers resiliently apply a return force to each of the printing levers in a return direction opposite to the driving direction. Stopper devices are disposed to be operatively engaged by each of the printing levers upon application of the printing force to thereby preclude contact between each of the printing levers and the electromagnetic drives upon application of the printing force.
公开/授权文献
- US5600256A Cast elastomer/membrane test probe assembly 公开/授权日:1997-02-04
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