Title:
UNEXPECTED LOOSENING PREVENTION BOLT
Document Type and Number:
Japanese Patent JP3794023
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an unexpected loosening prevention bolt having a pin hole, a pin and a pin pressor on its bolt head to prevent the loosening of the bolt.
SOLUTION: The pin hole 2 is formed on the bolt head of an unexpected loosening prevention bolt main body, the pin 4 is inserted through the pin hole in fastening, further a pin pressing projection 3 is formed on the bolt head, and the pin pressor 6 is engaged with the pin pressing projection 3 to press a head of the pin 4.
Inventors:
Koichi Hirai
Application Number:
JP2004231703A
Publication Date:
July 05, 2006
Filing Date:
July 10, 2004
Export Citation:
Assignee:
Koichi Hirai
International Classes:
F16B39/02; F16B41/00
Domestic Patent References:
| JP11044350A | ||||
| JP7305711A | ||||
| JP61109909U | ||||
| JP53116568U | ||||
| JP39033023Y1 |