Title:
MARKING TORQUE WRENCH
Document Type and Number:
WIPO Patent Application WO/2013/031893
Kind Code:
A1
Abstract:
When the clamping force applied from a wrench body (2) on a bolt (100) reaches a prescribed value, a toggle mechanism (4) is actuated. The wrench body (2) tilts with respect to the head member (3) around a connecting shaft (13) as the center. The engagement of a drive pin (11) with a drive pin insertion hole (43) rotates a link arm (40) from an initial position to an operating position. The front surface of a driving-side magnet (45) faces the back surface of a driven-side magnet (9) from behind. Since the back surface of the driven-side magnet (9) and the front surface of the driving-side magnet (45) are of the same pole, a repelling force is generated between the two. The stamp part (6a) of a marking member (19) advances to a forward position that contacts the bolt (100) in opposition to the impelling force of a stamp push-back spring (12), and makes a mark.
Inventors:
YAMAUCHI KATSUYA (JP)
SHIBASAKI KEIJI (JP)
SHIBASAKI KEIJI (JP)
Application Number:
PCT/JP2012/072007
Publication Date:
March 07, 2013
Filing Date:
August 30, 2012
Export Citation:
Assignee:
ISUZU MOTORS LTD (JP)
YAMAUCHI KATSUYA (JP)
SHIBASAKI KEIJI (JP)
YAMAUCHI KATSUYA (JP)
SHIBASAKI KEIJI (JP)
International Classes:
B25B23/15
Foreign References:
| JP2009148857A | 2009-07-09 | |||
| JP2009154237A | 2009-07-16 | |||
| JP2010155316A | 2010-07-15 | |||
| JP2010155315A | 2010-07-15 | |||
| JP3147978U | 2009-01-29 | |||
| JPH0890442A | 1996-04-09 |
Attorney, Agent or Firm:
YONEYAMA, Hisashi (JP)
Hisashi Yoneyama (JP)
Hisashi Yoneyama (JP)
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Claims: