Title:
DETACHMENT PREVENTING TOOL FOR FASTENING PART
Document Type and Number:
Japanese Patent JP3535487
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent detachment both on the head part side and the tip side of a bolt without providing a component part projecting externally.
SOLUTION: Detachment can be prevented by covering caps 6, 16 on a fastening part of a bolt 2 and a nut 3. Grooves 6a and 16a are formed on the inner peripheral side of the caps 6, 16, and the outer peripheral side part of a spring ring 8 is fitted in which the inner peripheral side part of the ring is fitted to a groove 7a on the outer peripheral side of a holder 7, thereby preventing a traveling in an axial direction 2a and resultant coming-off. Even where a torque is applied to the caps 6, 16, it results in idling and a tightening condition is unchanged, thus detachment is prevented.
Inventors:
Miyazaki, Satoru
Application Number:
JP2001307900A
Publication Date:
June 07, 2004
Filing Date:
October 03, 2001
Export Citation:
Assignee:
NISHIOKA BYORA KK
International Classes:
F16B41/00; F16B37/14; (IPC1-7): F16B37/14; F16B41/00
Attorney, Agent or Firm:
西教 圭一郎 （外２名）
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