发明申请
- 专利标题: Ball-point pen
- 专利标题(中): 圆珠笔
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申请号: US10589973申请日: 2005-02-16
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公开(公告)号: US20070183837A1公开(公告)日: 2007-08-09
- 发明人: Koichi Hirano
- 申请人: Koichi Hirano
- 申请人地址: JP TOKYO 140-8537
- 专利权人: MITSUBISHI PENCIL CO., LTD.
- 当前专利权人: MITSUBISHI PENCIL CO., LTD.
- 当前专利权人地址: JP TOKYO 140-8537
- 优先权: JP2004-048046 20040224
- 国际申请: PCT/JP05/02325 WO 20050216
- 主分类号: B43K7/00
- IPC分类号: B43K7/00 ; B43K7/10
摘要:
A ball-point pen, wherein a cover member (6) is fitted to a joint member (3) connecting a writing tip (1) rotatably supporting a writing ball (2) at the tip thereof to an ink storage tube. When the cover member (6) is fitted to the joint member (3) along the outer peripheral surface thereof, a part of the cover member does not come within 0.2 mm (within the range of the chain double-dashed line) from around the writing tip. Thus, even if the accuracies of parts and assembly machines are dispersed, a problem with an existing ball-point pen wherein a cover member is brought into contact with a writing tip and the writing tip is damaged in an assembly step can be avoided.
公开/授权文献
- US07641412B2 Ball-point pen 公开/授权日:2010-01-05