Title:
FEMALE SCREW COMPONENT AND FASTENING COMPONENT UTILIZING SAME
Document Type and Number:
WIPO Patent Application WO/2010/106775
Kind Code:
A1
Abstract:
Disclosed is a female screw component and a fastening component utilizing same which can prevent seizing resulting from skewed insertion and ensures smooth fastening regardless of the direction from which a bolt is inserted. The female screw component has a threadless section (14) of at least one pitch from the bolt insertion face (11) on the inner surface of a female screw component body (10) provided with female thread (13), and also has a protrusion (15) formed above a line extended from the helical female thread which contacts the flank surface of the male thread (21) of an inserted male bolt (20). The female screw component is used in combination with the male bolt (20), which does not have any incomplete screw sections, and no matter what direction the bolt is inserted from, seizing does not arise. Furthermore, it is yet more preferable for the location of the starting end of the female threads (13) of the female screw component body (10) to be staggered from the location of the starting end of the protrusion (15) in the circumferential direction.
Inventors:
TOYONAGA SEIICHI (JP)
FUJIURA SATOSHI (JP)
KOUGUCHI KOUICHIROU (JP)
MURASE YOSHIHIRO (JP)
KONAGAYA SATOSHI (JP)
IWATA MASAHITO (JP)
HASEGAWA SADAYOSHI (JP)
FUJIURA SATOSHI (JP)
KOUGUCHI KOUICHIROU (JP)
MURASE YOSHIHIRO (JP)
KONAGAYA SATOSHI (JP)
IWATA MASAHITO (JP)
HASEGAWA SADAYOSHI (JP)
Application Number:
PCT/JP2010/001817
Publication Date:
September 23, 2010
Filing Date:
March 15, 2010
Export Citation:
Assignee:
AOYAMA SEISAKUSHO (JP)
TOYOTA MOTOR CO LTD (JP)
TOYONAGA SEIICHI (JP)
FUJIURA SATOSHI (JP)
KOUGUCHI KOUICHIROU (JP)
MURASE YOSHIHIRO (JP)
KONAGAYA SATOSHI (JP)
IWATA MASAHITO (JP)
HASEGAWA SADAYOSHI (JP)
TOYOTA MOTOR CO LTD (JP)
TOYONAGA SEIICHI (JP)
FUJIURA SATOSHI (JP)
KOUGUCHI KOUICHIROU (JP)
MURASE YOSHIHIRO (JP)
KONAGAYA SATOSHI (JP)
IWATA MASAHITO (JP)
HASEGAWA SADAYOSHI (JP)
International Classes:
F16B33/02; F16B37/00
Foreign References:
| JP2005030580A | 2005-02-03 | |||
| JP2000145741A | 2000-05-26 | |||
| JP2004044767A | 2004-02-12 | |||
| JPH0798009A | 1995-04-11 | |||
| JP2001099119A | 2001-04-10 | |||
| JPH10274227A | 1998-10-13 |
Other References:
See also references of EP 2410191A4
None
None
Attorney, Agent or Firm:
WATANUKI, Tatsuo et al. (JP)
Tatsuo Watanuki (JP)
Tatsuo Watanuki (JP)
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