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Patent Searching and Data


Title:
VEHICLE SUSPENSION COIL SPRING
Document Type and Number:
WIPO Patent Application WO/2018/142833
Kind Code:
A1
Abstract:
A coil spring (2) for use in a link motion type suspension device (1), comprises a lower end-coil portion (20), an upper end-coil portion (21), and a cylindrical effective portion (22) between the lower end-coil portion (20) and the upper end-coil portion (21). Further, the coil spring (2) comprises a body bending regulation portion (100) including a tapered section (25) which is formed at the lower end-coil portion (20) and/or the upper end-coil portion (21). The tapered section (25) has a shape the thickness of which decreases from an intermediate point, in the length direction, of the end-coil portion (20) toward the tip (4X) of a wire (4). Change in the inclination of a spring seat (10) is absorbed by the tapered section (25) so that body bending of the effective portion (22) is inhibited.

Inventors:
NISHIZAWA SHINICHI (US)
Application Number:
PCT/JP2017/047280
Publication Date:
August 09, 2018
Filing Date:
December 28, 2017
Export Citation:
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Assignee:
NHK SPRING CO LTD (JP)
International Classes:
F16F1/06; B60G11/16
Foreign References:
JP2000272535A2000-10-03
JP2012211702A2012-11-01
JP2011002095A2011-01-06
JPS6029938U1985-02-28
JP2016191445A2016-11-10
JPH10281197A1998-10-20
JP2004210211A2004-07-29
JPS563330A1981-01-14
JP2015036565A2015-02-23
JP2000272535A2000-10-03
JP2008018784A2008-01-31
Other References:
See also references of EP 3578845A4
Attorney, Agent or Firm:
S & S INTERNATIONAL PPC (JP)
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