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Title:
COMBINATION TORSION SPRING, AND SHIFT MECHANISM PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2012/070219
Kind Code:
A1
Abstract:
A combination torsion spring whereby a predetermined reaction force is suitably generated in the coil circumferential direction without the center of a wound coil tilting even when applied with a load. The first torsion spring (110) and the second torsion spring (120) of a combination torsion spring (100) are each provided with a coil (111, 121). Each coil (111, 121) is formed by spirally winding a copper wire in a different winding direction from one another. The inner diameter of the coil (111) of the first torsion spring (110) is approximately the same as the outer diameter of the coil (121) of the second torsion spring (120). In the combination torsion spring (100), the coil (121) of the second torsion spring (120) is inserted into the coil (111) of the first torsion spring (110).

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Inventors:
SAITOH TETSUSHI
Application Number:
PCT/JP2011/006465
Publication Date:
May 31, 2012
Filing Date:
November 21, 2011
Export Citation:
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Assignee:
YAMAHA MOTOR CO LTD (JP)
SAITOH TETSUSHI
International Classes:
F16F3/04; F16H63/18
Foreign References:
JPS6122945U1986-02-10
JP2010156408A2010-07-15
JPS5430339A1979-03-06
JP2008082365A2008-04-10
JPS5639328A1981-04-15
JPH0614573U1994-02-25
Other References:
See also references of EP 2644931A4
Attorney, Agent or Firm:
WASHIDA, KIMIHITO (JP)
Koichi Washida (JP)
Download PDF:
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Claims:



 
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