Title:
ANTI-SEIZING BOLT
Document Type and Number:
WIPO Patent Application WO/2013/179788
Kind Code:
A1
Abstract:
Provided is an anti-seizing bolt capable of preventing seizing caused by the infiltration of sputter and other foreign material as well as seizing caused by oblique insertion. An incompletely threaded part (12), the outer diameter d of which is larger than the inner diameter D1 of female threads (20) and smaller than (D+D1)/2 (where D is the nominal diameter of the bolt), is formed across a pitch of one or greater at the tip of a regular threaded part (11), which is formed on a bolt shaft part. In addition, a vertical groove (14) is formed in this incompletely threaded part (12) to cut away sputter and other foreign material.
Inventors:
KONAGAYA SATOSHI (JP)
YAMADA KENYA (JP)
KOGA KAZUHIRO (JP)
YAMADA KENYA (JP)
KOGA KAZUHIRO (JP)
Application Number:
PCT/JP2013/061175
Publication Date:
December 05, 2013
Filing Date:
April 15, 2013
Export Citation:
Assignee:
AOYAMA SEISAKUSHO (JP)
International Classes:
F16B35/00
Domestic Patent References:
| WO2006134626A1 | 2006-12-21 |
Foreign References:
| JP2012504731A | 2012-02-23 | |||
| JPH02176207A | 1990-07-09 | |||
| JPS6280009U | 1987-05-22 | |||
| JPH10141343A | 1998-05-26 | |||
| JP3336257B2 | 2002-10-21 |
Other References:
See also references of EP 2696085A4
Attorney, Agent or Firm:
YAMAMOTO Fumio et al. (JP)
Fumio Yamamoto (JP)
Fumio Yamamoto (JP)
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