Title:
BOLT FASTENING STRUCTURE
Document Type and Number:
Japanese Patent JP2003227509
Kind Code:
A
Abstract:
To prevent a bolt once loosened and drawn out from a nut from being bitten in the nut again.
In this bolt fastening structure, between fastening plate members 1, 2 provided in two devices and fastened with a bolt 5, a bolt collar 3 in which a bolt hole 3a is formed to insert the bolt 5 is secured to the upper surface of the upper fastening plate member 1, a nut 6 in which the bolt 5 is screwed is provided in the lower surface of the lower fastening plate member 2. A spring body 9 for pushing the bolt 5 loosened and drawn out from the nut 6 against the inner peripheral edge of the bolt hole 3a of the bolt collar 3 is provided in the bolt collar 3.
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Inventors:
YAMAGUCHI TOMOTERU
KINOSHITA JUNICHI
KINOSHITA JUNICHI
Application Number:
JP2002028307A
Publication Date:
August 15, 2003
Filing Date:
February 05, 2002
Export Citation:
Assignee:
ISHIKAWAJIMA HARIMA HEAVY IND
International Classes:
F16B41/00; F16B35/04; (IPC1-7): F16B41/00; F16B35/04
Attorney, Agent or Firm:
Tsunemitsu Yamada (1 person outside)
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