Title:
BOLT AND FASTENING STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2019/220989
Kind Code:
A1
Abstract:
To threadedly engage a bolt (1) and a female screw (5) with each other, thereby making it possible to shave off a deposit on the inner surface of the female screw (5) and to make it easy for a worker to sense the seating, there is provided a bolt (1) including a shaft (2) and a head (3), wherein a first thread (11) is provided on a head side of the shaft, and at least one of a thread (12) provided larger in diameter than the first thread (11) and a thread (13) provided wider than the first thread (11) is provided on a tip end side of the shaft.
More Like This:
| JP2001132720 | MALE SCREW |
| WO/2002/029258 | VARIABLE PITCH THREAD CONFIGURATION |
Inventors:
SUZUKI YUICHIRO (JP)
YOSHIDA MITSUKI (JP)
FURUKAWA AKIHIRO (JP)
FUJIMOTO YUKINORI (JP)
YOSHIDA MITSUKI (JP)
FURUKAWA AKIHIRO (JP)
FUJIMOTO YUKINORI (JP)
Application Number:
PCT/JP2019/018468
Publication Date:
November 21, 2019
Filing Date:
May 09, 2019
Export Citation:
Assignee:
AOYAMA SEISAKUSHO (JP)
International Classes:
F16B33/02; F16B1/00; F16B35/00
Foreign References:
| US3351115A | 1967-11-07 | |||
| JP2014037893A | 2014-02-27 | |||
| JPH05340415A | 1993-12-21 | |||
| EP3211252A1 | 2017-08-30 | |||
| US20160281763A1 | 2016-09-29 | |||
| JPH05340415A | 1993-12-21 | |||
| JP2014037893A | 2014-02-27 |
Attorney, Agent or Firm:
NAJIMA PATENT OFFICE (JP)
Download PDF:
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