发明名称 |
DOUBLE-CHUCK MECHANICAL PENCIL. |
摘要 |
A double-chuck mechanical pencil comprises: a barrel; a barrel cap attached to the barrel; a lead tank axially slidably inserted in the barrel; a back chuck fixedly joined to the front end of the lead tank; a chuck ring loosely fitted on the chucking head of the back chuck; a tubular member disposed so as to surround the front portion of the lead tank; a back elastic member placed in the tubular member so as to bias the lead tank backward; a coupling member combined with the tubular member, and provided in its inner circumference with stopping portions with which the tubular member and the chuck ring come into contact, respectively; a front chuck fixedly joined to the front portion of the coupling member; and a front elastic member interposed between the barrel cap and the coupling member so as to bias the coupling member backward. A rotation prohibiting means permits the axial movement of the coupling member and prohibits the rotation of the same relative to the tubular member. A tail cap is attached to the back end of the barrel and a push cap is put datachably on the back end of the lead tank.
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申请公布号 |
MX9505106(A) |
申请公布日期 |
1997.01.31 |
申请号 |
MX19950005106 |
申请日期 |
1995.12.06 |
申请人 |
KOTOBUKI & CO., LTD. |
发明人 |
HIDEHEI KAGEYAMA;SHOUJI ANZAI;TADASHI YAMAMOTO;YOSHIHIDE MITSUYA |
分类号 |
B43K21/00;B43K21/12;B43K21/16;B43K21/22;(IPC1-7):B43K21/00 |
主分类号 |
B43K21/00 |
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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