Tools – Wrench – screwdriver – or driver therefor
Reexamination Certificate
2006-05-26
2010-11-23
Meislin, D. S (Department: 3727)
Tools
Wrench, screwdriver, or driver therefor
C073S761000
Reexamination Certificate
active
07836794
ABSTRACT:
A bolt fastening method enabling the same effect as when reducing the coefficient of friction of a thread surface without changing the coefficient of friction of the thread surface so as to realize an increase in a bolt axial force generated when fastening the bolt and a bolt fastening device realizing the bolt fastening method are provided.The bolt fastening method of the present invention is a bolt fastening method for when using a bolt having a bolt head and a bolt shank provided with an external thread to fasten fastened members, characterized by intentionally biasing surface pressures of a thread surface and a bolt bearing surface generated when fastening the bolt by imparting a lateral load parallel to the bolt bearing surface to the bolt head and, in that state, imparting a rotational torque rotating the external thread to the bolt head so as to fasten the bolt.
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Yasuo Fujioka and Tomotsugu Sakai, Calculated Behavior and Effective Factors for Bolt Self-Loosening Under a Transverse Cyclic Load Generated by a Linearly Vibrating Washer, Proceedings of IMECE2005 (2005 ASME International Mechanical Engineering Congress and Exposition), Nov. 5, 2005.
Fujioka Yasuo
Sakurabayashi Yasunori
Sato Kazuaki
Tanaka Atsuo
Teranishi Hiroshi
Finnegan Henderson Farabow Garrett & Dunner LLP
Meislin D. S
Toyota Jidosha & Kabushiki Kaisha
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