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Patent Searching and Data


Title:
BOLT TIGHTENING DEVICE
Document Type and Number:
Japanese Patent JP2010194620
Kind Code:
A
Abstract:

To provide a bolt tightening device capable of generating a strong axial force of a bolt without changing a coefficient of the friction itself of a thread face.

A sun gear 130 oscillates on its diameter by using the center of the rotation of an outer ring gear as the center of oscillation while rotating by itself. A socket wrench 150 can give rotation torque while giving vibration (lateral load F) to a head 12 of the bolt in the radial direction (parallel with a seat face 13A of the bolt) crossing the rotary axis L orthogonally when tightening the bolt 10 by the movement of the sun gear 130.


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Inventors:
FUJIOKA YASUO
MURAKAMI KOJI
Application Number:
JP2009039063A
Publication Date:
September 09, 2010
Filing Date:
February 23, 2009
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
AOYAMA SEISAKUSHO
International Classes:
B25B23/14; B25B21/00
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda