Title:
ANGLE WRENCH AND ROTATION ANGLE-MEASURING DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/027443
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing an angle wrench that has a simple structure and is capable of accurately measuring rotation angle. The solution to the problem is an angle wrench used for tightening an object to be tightened by means of the turn-of-nut method, the angle wrench being provided with: a handle (2) having a grip (2a); a head section (4) having a tightening head (4a) for tightening the object to be tightened, and the tail section (4c) that extends from the tightening head (4a) being pivotally supported with respect to the handle (2) via a head pin (2b); torque-detecting mechanisms (6, 18, 20) for detecting when the torque for tightening the object being tightened reaches the specified torque; and a rotation angle-measuring section (24, 102) for measuring the rotation angle of the angle wrench in a tightening action, on the basis of the angular velocity of the angle wrench around the axis of the object being tightened, after the torque detection mechanism has detected that the specified torque has been reached.
Inventors:
YOKOYAMA TETSUYA (JP)
MURAYAMA SHINJI (JP)
KOBAYASHI NOBUYOSHI (JP)
KANDA YOSHIRO (JP)
MURAYAMA SHINJI (JP)
KOBAYASHI NOBUYOSHI (JP)
KANDA YOSHIRO (JP)
Application Number:
PCT/JP2013/004604
Publication Date:
February 20, 2014
Filing Date:
July 30, 2013
Export Citation:
Assignee:
TOHNICHI MFG CO LTD (JP)
International Classes:
B25B23/144; B25B23/14
Foreign References:
| JP2001009750A | 2001-01-16 | |||
| JPH08141927A | 1996-06-04 | |||
| JP2001009749A | 2001-01-16 | |||
| JP2001009749A | 2001-01-16 |
Other References:
See also references of EP 2886253A4
Attorney, Agent or Firm:
MIZUNO, Katsufumi et al. (JP)
Katsufumi Mizuno (JP)
Katsufumi Mizuno (JP)
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