发明授权
- 专利标题: Writing implement
- 专利标题(中): 书写工具
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申请号: US12289712申请日: 2008-10-31
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公开(公告)号: US08142091B2公开(公告)日: 2012-03-27
- 发明人: Yojiro Sano
- 申请人: Yojiro Sano
- 申请人地址: JP Tokyo
- 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
- 代理机构: Kubovcik & Kubovcik
- 优先权: JP2007-285089 20071101
- 主分类号: A46B5/02
- IPC分类号: A46B5/02
摘要:
A writing implement capable of eliminating troubles associated with the adoption of a grip member having an end surface inclined from a vertical surface perpendicular to a central axis of a shaft tube. The inclination angle α of a step-facing surface 5A of the grip member 5 is made smaller than the inclination angle β of an inclined step surface 12 of the shaft tube 10. A gap G is partially formed between the step-facing surface 5A and the inclined step surface 12 when a compressive force is not applied to the grip member 5. When the grip member 5 is compressed, the whole of the step-facing surface 5A is further inclined and comes into contact with the inclined step surface 12. Accordingly, even when the step-facing surface 5A of the grip member 5 is inclined for imparting excellent design to the writing implement, an acute-angled tip-end portion of the grip member 5 is prevented from moving along the inclined step surface 12 and rising from the surface of the shaft tube 10, thereby preventing the occurrence of the troubles.
公开/授权文献
- US20090142120A1 Writing implement 公开/授权日:2009-06-04