| 摘要 |
PROBLEM TO BE SOLVED: To provide a retractable knife capable of freely adding and changing an additional function in the retractable knife. SOLUTION: Cuts for fixing attachments are arranged in the back part of a guide to be a guide for putting-in/taking-out a cutter blade. The various attachments are slidably mounted on the cutter guide, and fixed at arbitrary positions by using the cuts provided in the cutter guide. There is a pen holder attachment or a chamfering plane attachment as an example of the attachments. COPYRIGHT: (C)2008,JPO&INPIT
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