Title:
BOLT
Document Type and Number:
Japanese Patent JPH09236108
Kind Code:
A
Abstract:
To provide a bolt having excellent sealing ability, unfastening protection, and vibration insulating ability.
A annular groove 4 is formed in the seat part of a flange part 3 arranged at the bolt head part 2 of a bolt main body 1 having a fastening amount regulation function. An uneven surface 5 is formed in the inner bottom surface of an annular groove 4 and an uneven surface 8 is formed in the outer peripheral surface of the neck lower part of a bolt shaft part 7. An elastic seal body 6 having a tapered-off taper surface 6a is integrally molded throughout a range of from the annular groove 4 to the neck lower part.
Inventors:
KAJINO HIROSHI
IDE MASAAKI
MIZUNO HIROMICHI
IDE MASAAKI
MIZUNO HIROMICHI
Application Number:
JP4297196A
Publication Date:
September 09, 1997
Filing Date:
February 29, 1996
Export Citation:
Assignee:
AOYAMA SEISAKUSHO
International Classes:
F16B31/02; F16B35/00; F16B39/282; (IPC1-7): F16B35/00; F16B31/02; F16B39/282
Attorney, Agent or Firm:
Akio Najima (2 others)