Title:
FASTENING STRUCTURE FOR LOCKING, AND NUT AND WASHER FOR THE SAME FASTENING STRUCTURE
Document Type and Number:
Japanese Patent JP3522695
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To achieve strong locking effect in a fastening structure for locking comprising a nut, a bolt, and a washer provided with a hole in which a shaft of the bolt can be inserted.
SOLUTION: This fastening structure has an axially symmetric recessed part having a roughly trapezoidal cross section on the washer side and inner side of the nut, and an axially symmetric protruded part having a roughly trapezoidal cross section on the nut side and inner side of the washer, so that the recessed part in the nut is engaged with the protruded part of the washer. The hole provided in the washer is positioned on the inner side of the protruded part, and a center position of the hole is set eccentric to a center position of the protruded part of the washer.
Inventors:
Nakagami, Teruo
Application Number:
JP2001004459A
Publication Date:
April 26, 2004
Filing Date:
January 12, 2001
Export Citation:
Assignee:
Nakagami, Teruo
International Classes:
F16B39/24; (IPC1-7): F16B39/24
Attorney, Agent or Firm:
上田 育弘