Title:
SPRING ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2018/143071
Kind Code:
A1
Abstract:
Provided is a spring assembly having different load properties in a plurality of phases such that a low load is applied during an initial spring stroke period, whereas a higher load is applied during a late spring stroke period. A spring assembly 10 has a plurality of first coil springs 1 and a plurality of second coil springs 2, and has a first support member 20 and a second support member 40. One end side of each of the first coil springs 1 is supported on a front surface side of the first support member 20. One end side of each of the second coil springs 2 is supported on a front surface side of the second support member 40. In this state, the other end side of each of the second coil springs 2 protrudes beyond the other end side of each of the first coil springs 1. When the plurality of first coil springs 1 and the plurality of second coil springs 2 are contracted, a sum of elastic repulsive forces of the plurality of first coil springs 1 is greater than a sum of elastic repulsive forces of the second coil springs 2.
Inventors:
UEMATSU YASUTAKA (JP)
Application Number:
PCT/JP2018/002415
Publication Date:
August 09, 2018
Filing Date:
January 26, 2018
Export Citation:
Assignee:
PIOLAX INC (JP)
International Classes:
F16F3/04; F16D13/71
Foreign References:
| JPS56150271A | 1981-11-20 | |||
| JPS636151A | 1988-01-12 | |||
| JPS4875085A | 1973-10-09 | |||
| JPH0486926A | 1992-03-19 | |||
| JPH08504920A | 1996-05-28 | |||
| JP2003247579A | 2003-09-05 | |||
| US4186914A | 1980-02-05 |
Attorney, Agent or Firm:
MATSUI Shigeru (JP)
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