Bolt fastening method and bolt fastening device

Details Bolt fastening method and bolt fastening device Bolt fastening method and bolt fastening device

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.

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