发明名称 |
CAPLESS WRITING INSTRUMENT |
摘要 |
In a capless writing instrument with its writing element arranged in the barrel cylinder so that a writing point of the writing element can come out and retract through a front-end opening of the barrel cylinder, an inner cap having a dome-like convex portion projected frontwards is arranged at the front-end part of the barrel cylinder, and the inner cap is formed of rubber or elastic resin, a slit-forming groove having a thin-film portion at the depressed bottom of the slit is formed from a position at the root of the dome-like inner cap to the opposite position at the root intersecting the substantially center of the convex portion.
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申请公布号 |
US2002131807(A1) |
申请公布日期 |
2002.09.19 |
申请号 |
US20020093888 |
申请日期 |
2002.03.11 |
申请人 |
AMI KAZUHIRO;SAWA YUKINORI;OSADA TAKAHIRO |
发明人 |
AMI KAZUHIRO;SAWA YUKINORI;OSADA TAKAHIRO |
分类号 |
B43K5/17;B43K24/08;(IPC1-7):B43K24/02 |
主分类号 |
B43K5/17 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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