Title:
A SINGLE WEDGE WRENCH
Document Type and Number:
WIPO Patent Application WO/2007/128210
Kind Code:
A1
Abstract:
A single wedge wrench includes a jaw with a sliding track, and a wedge which has
a runner and matches with said jaw. A restoring spring is disposed between said
wedge and said jaw. The cross section of said sliding track is of dovetail structure.
A groove for restoring spring is formed in the center of said sliding track along
the sliding direction of said wedge. Said restoring spring is installed in said
groove. A location through hole is formed in the radial direction of said wedge.
Said wedge and said restoring spring are jointed by a fixed pin in the location
through hole.
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Inventors:
LU HONG (CN)
Application Number:
PCT/CN2007/001325
Publication Date:
November 15, 2007
Filing Date:
April 23, 2007
Export Citation:
Assignee:
LU HONG (CN)
International Classes:
B25B13/12
Foreign References:
| CN2584358Y | 2003-11-05 | |||
| CN1116576A | 1996-02-14 | |||
| CN2213610Y | 1995-11-29 | |||
| US4706528A | 1987-11-17 | |||
| US4437364A | 1984-03-20 | |||
| US4735121A | 1988-04-05 |
Attorney, Agent or Firm:
QINGDAO FIRST PATENT & TRADEMARK AGENT CO. LTD (World Trade Centre BuildingsNo. 6, Xianggang Middle Road,Qingdao, Shandong 1, CN)
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