发明授权
- 专利标题： Writing instrument
- 专利标题（中）： 书写工具
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申请号： US158387申请日： 1980-06-11
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公开(公告)号： US4364684A公开(公告)日： 1982-12-21
- 发明人: Tadashi Kohno , Takahiko Shimizu , Kenji Takahashi , Hishao Fukui , Akio Okubo , Noriaki Masuda
- 申请人： Tadashi Kohno , Takahiko Shimizu , Kenji Takahashi , Hishao Fukui , Akio Okubo , Noriaki Masuda
- 申请人地址： JPX Tokyo
- 专利权人： Pentel Kabushiki Kaisha
- 当前专利权人： Pentel Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX54-85107[U] 19790621; JPX54-85108[U]JPX 19790621
- 主分类号： B43K5/18
- IPC分类号： B43K5/18 ; B43K3/04
摘要：
A writing instrument comprises a writing nib having a writing tip at one end and an enlarged head portion at the other end, and a resilient seat urging the head portion of the nib toward a tip of the instrument. The nib is movably secured in a nib holder body in such a manner that a writing pressure enables the nib to move backward against the resilient force of the seat to form an ink-feed space between the head portion and the nib holder body. When the writing instrument is not in use, the head portion is engaged with the nib holder body to close the ink-feed space.
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