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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 (INC. 51, Iwai-cho, Hodogaya-ku, Yokohama-sh, Kanagawa 23, 〒2400023, JP)
Application Number:
JP2018/002415
Publication Date:
August 09, 2018
Filing Date:
January 26, 2018
Export Citation:
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Assignee:
PIOLAX, INC. (51 Iwai-cho, Hodogaya-ku Yokohama-sh, Kanagawa 23, 〒2400023, JP)
International Classes:
F16F3/04; F16D13/71
Foreign References:
JPS56150271A1981-11-20
JPS636151A1988-01-12
JPS4875085A1973-10-09
JPH0486926A1992-03-19
JPH08504920A1996-05-28
JP2003247579A2003-09-05
US4186914A1980-02-05
Attorney, Agent or Firm:
MATSUI Shigeru (Nishi-Shinjuku Mitsui Building 18F, 24-1 Nishi-Shinjuku 6-chome, Shinjuku-k, Tokyo 23, 〒1600023, JP)
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