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Title:
LAMINATED STRUCTURE OF SPRING
Document Type and Number:
Japanese Patent JP2010203490
Kind Code:
A
Abstract:

To provide a laminated structure of a spring which prevents the occurrence of abrasion by sliding between springs and between springs and counterpart members and the occurrence of hysteresis in load characteristics and which does not require a guide for matching the axes of the springs.

Corner portions which can be deformed elastically are formed at the boundary portions of laminated portions 11, 12 and a body. Because the laminated portions 11, 12 have non-deformed portions at the side of members 101, 102 when a load is applied, sliding with the members 101, 102 can be prevented. In the laminated portion 11, inner diameter of the end at the corner portion side is set larger than the outer diameter of the end of the opposite side to the corner portion. In the laminated portion 12, outer diameter of the end at the corner portion side is set smaller than the inner diameter of the end of the opposite side to the corner portion. Laminated portions can be fitted to each other. In portions where the laminated portions contact each other, the contact portions are fixed because a large contact force is generated by being deformed toward each other when a load is applied.

COPYRIGHT: (C)2010,JPO&INPIT


Inventors:
TAJIMA NORIHIRO
ITO HIDEMASA
TOMINAGA JUN
Application Number:
JP2009047703A
Publication Date:
September 16, 2010
Filing Date:
March 02, 2009
Export Citation:
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Assignee:
NHK SPRING CO LTD
International Classes:
F16F3/00
Domestic Patent References:
JPS5058155U1975-05-30
JPS58632A1983-01-05
JP2003322186A2003-11-14
JPH0540632U1993-06-01
JPH10311369A1998-11-24
JPH028523A1990-01-12
JPH0754893A1995-02-28
JPH0921437A1997-01-21
JPS5058155U1975-05-30
JPS58632A1983-01-05
JP2003322186A2003-11-14
JPH0540632U1993-06-01
JPH10311369A1998-11-24
Foreign References:
US5253852A1993-10-19
US5253852A1993-10-19
Attorney, Agent or Firm:
Suenari Mikio