Title:
FASTENER AND FASTENING STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2010/092817
Kind Code:
A1
Abstract:
[Object] To provide a fastener having a high anti-loosening effect.
[Means to achieve the object] A fastener has a thread structure including an upper portion of the crest and a bottom portion at the groove. The upper portion has a load flank surface inclined from the standard load flank surface toward the fastener seat while the bottom has an undercut on at least one of the groove side lower than the extension of the corresponding flank surface.
Inventors:
MATSUBAYASHI KOU (JP)
Application Number:
PCT/JP2010/000858
Publication Date:
August 19, 2010
Filing Date:
February 12, 2010
Export Citation:
Assignee:
ART SCREW CO LTD (JP)
MATSUBAYASHI KOU (JP)
MATSUBAYASHI KOU (JP)
International Classes:
F16B39/30; F16B33/02
Domestic Patent References:
| WO2008081721A1 | 2008-07-10 |
Foreign References:
| JPH036115U | 1991-01-22 | |||
| JP2005061602A | 2005-03-10 | |||
| JPS4813902B1 | 1973-05-01 | |||
| JP3095134U | 2003-07-25 | |||
| JP3031085U | 1996-11-12 | |||
| JP2008144955A | 2008-06-26 | |||
| JPS5388664U | 1978-07-20 | |||
| JPH08177839A | 1996-07-12 | |||
| JPH01151033A | 1989-06-13 | |||
| JP2006057801A | 2006-03-02 |
Other References:
See also references of EP 2397707A4
Attorney, Agent or Firm:
KONISHI, Tomimasa (JP)
Tomu Konishi -- elegant (JP)
Tomu Konishi -- elegant (JP)
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