Title:
TIGHTENING DEVICE
Document Type and Number:
WIPO Patent Application WO/2002/014702
Kind Code:
A1
Abstract:
A tightening device having a function to apply an energizing force, in tightening direction, to a tightened material comprising bolts, nuts, and screws tightening, by threading, a tightened object for long period continuously from the beginning of tightening, the device comprising an engaged part engaged with the tightened material and formed integrally with one end part of the energizing member energizing the tightened material tightened to the tightened object in the direction of tightening, and a switching member for switching the constraint and activation of the energizing force to the tightened material and linked with the energizing member, characterized in that the switching member holds the engaged part and the other end part side of the energizing member to arrest the energizing force and is detached from the engaged part and the other end part side of the energizing member to operate the energizing force, whereby the switching member can stably arrest the energizing force of the energizing member to the tightened material, and the switching member can be removed from around the energizing member when the energizing force of the energizing member to the tightened material is activated
Inventors:
TANIMURA KAZUAKI (JP)
Application Number:
PCT/JP2000/005479
Publication Date:
February 21, 2002
Filing Date:
August 16, 2000
Export Citation:
Assignee:
KASHIRAISHI INC (JP)
TANIMURA KAZUAKI (JP)
TANIMURA KAZUAKI (JP)
International Classes:
F16B31/04; F16B33/00; F16B37/00; F16B37/14; F16B39/02; F16F1/10; F16F1/12; (IPC1-7): F16B39/02; F16F1/18
Foreign References:
| JP3058344U | 1999-06-18 | |||
| JPH0596530U | 1993-12-27 | |||
| US4493597A | 1985-01-15 | |||
| JP3011460U | 1995-05-30 |
Other References:
See also references of EP 1310685A4
Attorney, Agent or Firm:
Yoshida, Yoshiharu (Toranomon 1-chome Minato-ku, Tokyo, JP)
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