Title:
FIXATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2007/144946
Kind Code:
A1
Abstract:
A fixation device firmly fastening an object by using irreversible loosening prevention
means and preventing loosening of the device by an excellent loosening prevention
function of the device.The fixation device has excellent durability and workability
in fastening operation, can perform firm fastening without having an increased
number of parts, and has excellent corrosion resistance. The fixation device
has a bolt section (1) and a nut section (2). A threadless section (12) having
an appropriate groove width is axially provided at a part of a male thread section
(11) of the bolt section (1). A tube section (21) is extendedly provided on the
nut section (2), at a position corresponding to the threadless section (12) of
the bolt section (1) when the nut section (2) is fastened to the bolt section (1).
After the bolt section (1) and the nut section (2) are fastened and fixed to a predetermined
position, the tube section (21) is pressed by a tool, such as a crushing tool (3),
in the diameter reducing direction, crushed against the threadless section
(12) to fix the nut section (2) to the bolt section (1).
Inventors:
SUZUKI MASAO (JP)
IKEDA EIJI (JP)
IKEDA EIJI (JP)
Application Number:
PCT/JP2006/311980
Publication Date:
December 21, 2007
Filing Date:
June 15, 2006
Export Citation:
Assignee:
SUZUKI MASAO (JP)
IKEDA EIJI (JP)
IKEDA EIJI (JP)
International Classes:
F16B39/02
Foreign References:
| JPS5370257A | 1978-06-22 | |||
| JPS63145013U | 1988-09-26 | |||
| JP2001027217A | 2001-01-30 | |||
| JP2004132518A | 2004-04-30 | |||
| JP2003343536A | 2003-12-03 |
Other References:
See also references of EP 2034197A4
Attorney, Agent or Firm:
KOBAYASHI, Tetsuo (3-6 Toranomon 1-chom, Minato-ku Tokyo 01, JP)
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