Title:
HOOK FITTING STRUCTURE
Document Type and Number:
Japanese Patent JP2020015376
Kind Code:
A
Abstract:
To easily prevent breakage of a bolt.SOLUTION: A pre-fastening state is made by overlapping a towing hook 7 and a hook fitting part 6 at a vehicle body side in a fastening direction which intersects with a vehicle longitudinal direction, and the towing hook 7 in the pre-fastening state is fastened and fixed to the hook fitting part 6 by a bolt 18 and a nut 19. A bolt shaft 20 of the bolt 18 integrally includes a non-screw part 22 of a non-male screw shape extending from a bolt head part 21, and a screw part 23 of a male screw shape extending from the non-screw part 22. An outer diameter of the non-screw part 22 is set to be an outer diameter of the screw part 23 or more. A shaft length L1 of the non-screw part 22 from the bolt head part 21 to the screw part 23 of each bolt 18 is set to be a length for inserting the non-screw part 22 into a boundary 26 of the hook fitting part 6 and the towing hook 7 in a hook fitting state in which the bolt shaft 20 is inserted in bolt insertion holes 12-15 in the pre-fastening state and the screw part 23 is screwed and fastened to the nut 19.SELECTED DRAWING: Figure 3
Inventors:
TSUGUCHI SEIYA
TODA YOSHINOBU
SERIZAWA HISANOBU
TODA YOSHINOBU
SERIZAWA HISANOBU
Application Number:
JP2018138477A
Publication Date:
January 30, 2020
Filing Date:
July 24, 2018
Export Citation:
Assignee:
ISUZU MOTORS LTD
International Classes:
B60D1/04; F16B45/00
Attorney, Agent or Firm:
Naoshi Yoneyama