Title:
NUT
Document Type and Number:
WIPO Patent Application WO/2007/037009
Kind Code:
A1
Abstract:
A nut having a nut body, a spring case, a washer, and a nut body urging spring. The
nut body has received in it at least three or more nut segments and a nut segment
urging spring, where the nut segments are, when rotated in the tightening direction
after a bolt is inserted into the nut segments, screwed on to the thread of the bolt
inserted. The spring case is attached at its upper end to the outer circumferential
surface other than the upper part of the nut body so that the spring case is rotatable
together with the nut body. The washer is rotatably attached to the lower part
of the spring case. The urging spring is installed such that its one end received
in the spring case is connected to the spring case or to the nut body and the other
end to the washer, so that the urging spring can constantly urge the nut body in
the tightening direction when the nut body is screwed on the bolt. When the nut
is fitted on the bolt and rotated in the tightening direction, at least the three
or more nut segments are screwed on to the thread of the bolt, causing the nut body
in which the nut segments are received to be constantly urged in the tightening
direction, which eliminates play of the nut segments to keep the nut and the bolt
in a state where they are reliably screwed to each other.
More Like This:
| WO/2007/144949 | NUT |
| JP2872101 | [Title of Invention] Tensile force generating type connecting device |
Inventors:
TANEICHI KAORU (JP)
Application Number:
PCT/JP2005/017975
Publication Date:
April 05, 2007
Filing Date:
September 29, 2005
Export Citation:
Assignee:
TANEICHI KAORU (JP)
International Classes:
F16B37/10; F16B39/24
Foreign References:
| JP2001221220A | 2001-08-17 | |||
| JP2003001899Y1 | ||||
| JP2001295374A | 2001-10-26 | |||
| JP2003287014A | 2003-10-10 |
Attorney, Agent or Firm:
MIURA, Mitsuyasu (#302 Phoenix Ohki 2-28-1 Ebisu-minami, Shibuya-ku Tokyo 22, JP)
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