Title:
WRENCH
Document Type and Number:
WIPO Patent Application WO/2016/008069
Kind Code:
A1
Abstract:
A wrench comprising a body (11) and a first working part (12) extending from one extremity of the body (11). The first working part (12) is provided with a first accommodating space (18) fitting a workpiece. A first pawl component (30) is also provided on the first working part (12). The first pawl component (30) is configured such that: when the wrench rotates in a first direction, the wrench and the workpiece (50) do not rotate relative to each other; when the wrench rotates in a second direction opposite the first direction, the workpiece remains stationary, and the wrench rotates relative to the workpiece. The wrench implements repeated rotation of the workpiece and obviates the need to remove the wrench from the workpiece and to remount the wrench onto the workpiece, thus increasing the work efficiency of the wrench. Also, the wrench is structurally simple and can withstand increased torque.
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Inventors:
WANG MIN (CN)
Application Number:
PCT/CN2014/082142
Publication Date:
January 21, 2016
Filing Date:
July 14, 2014
Export Citation:
Assignee:
HANGZHOU GREAT STAR TOOLS CO LTD (CN)
HANGZHOU GREAT STAR IND CO LTD (CN)
HANGZHOU GREAT STAR IND CO LTD (CN)
International Classes:
B25B13/46
Foreign References:
| CN102990579A | 2013-03-27 | |||
| JP4964216B2 | 2012-06-27 | |||
| US4838132A | 1989-06-13 | |||
| CN203936842U | 2014-11-12 | |||
| CN202271305U | 2012-06-13 | |||
| CN202684802U | 2013-01-23 | |||
| US6055890A | 2000-05-02 | |||
| JP2011156620A | 2011-08-18 |
Attorney, Agent or Firm:
SUNRAY INTELLECTUAL PROPERTY ATTORNEYS (CN)
上海旭诚知识产权代理有限公司 (CN)
上海旭诚知识产权代理有限公司 (CN)
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