发明名称 |
Mechanical pencil |
摘要 |
There is provided a mechanical pencil which permits an effective use of a residual lead which is left in a front end of the pencil. The pencil has a tubular shaft having at its front portion a slide member which has a passage for a writing lead, and a lead advancement mechanism axially slidably disposed in the tubular shaft. The slide member and at least one element of the lead advancement mechanism are co-acted and interlocked with each other. This structure permits a favorable feeling of writing and an effective use of the writing lead.
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申请公布号 |
US2002154934(A1) |
申请公布日期 |
2002.10.24 |
申请号 |
US20010937984 |
申请日期 |
2001.10.03 |
申请人 |
MARUYAMA SHIGEKI;HENMI TOSHIRO;SASAKI TSUKASA |
发明人 |
MARUYAMA SHIGEKI;HENMI TOSHIRO;SASAKI TSUKASA |
分类号 |
B43K21/027;B43K21/16;(IPC1-7):B43K21/22 |
主分类号 |
B43K21/027 |
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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