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Patent Searching and Data


Title:
回転用工具
Document Type and Number:
Japanese Patent JP5202914
Kind Code:
B2
Abstract:
A rotary tool, wherein a holding and transmitting part (1) to hold a hexagonal column of a rotated body and give rotation force comprises a recessed part (2) and plate springs (3). The recessed part (2) has an inner face having an approximately regular triangle shape in cross section, run-off parts (2a) at respective corners of the triangle shape, and a uniform shape in the depth direction. The plate springs (3) are fixed at a bottom part of the recessed part (2) and have pawl parts (3a) at tip ends thereof positioned at the opening end side of the recessed part (2). When the hexagonal column (H) of the rotated body is inserted into the recessed part (2), the pawl parts (3a) can be moved into the run-off parts (2a) while contacting to three side faces of the hexagonal column (H) of the rotated body so as to generate spring force.

Inventors:
Sakaguchi Yoshihiro
Naoto Fujii
Ryosuke Ikeya
Application Number:
JP2007253675A
Publication Date:
June 05, 2013
Filing Date:
September 28, 2007
Export Citation:
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Assignee:
GC Corporation
International Classes:
B25B13/02; B25B15/00; B25B23/157
Domestic Patent References:
JP2007118188A
JP2003089071A
JP2000033580A
JP2002210671A
JP4063359U
Foreign References:
US6178854
Attorney, Agent or Firm:
Tadayuki Noma