Title:
COIL SPRING
Document Type and Number:
WIPO Patent Application WO/2018/143105
Kind Code:
A1
Abstract:
A coil spring (2) according to one embodiment comprises a lower end-coil portion (20) in contact with a lower spring seat (10), an upper end-coil portion (21) in contact with an upper spring seat (11), and an effective portion (22) between the lower end-coil portion (20) and the upper end-coil portion (21). In a free form of being not compressed, the coil spring (2) has a cylindrical shape about the axis of the effective portion (22). Moreover, in a compressed form of being compressed to a specified height, the coil spring (2) has a cylindrical shape having a fixed pitch in a Z-axis direction with respect to a coordinate system in which the load axis (FL) is the Z-axis.
Inventors:
NISHIZAWA SHINICHI (US)
Application Number:
PCT/JP2018/002588
Publication Date:
August 09, 2018
Filing Date:
January 26, 2018
Export Citation:
Assignee:
NHK SPRING CO LTD (JP)
International Classes:
F16F1/06; B60G11/16
Foreign References:
| JP2005016645A | 2005-01-20 | |||
| JP2000351311A | 2000-12-19 | |||
| JP2002178736A | 2002-06-26 | |||
| JP2000055096A | 2000-02-22 | |||
| JPH01156119A | 1989-06-19 | |||
| JP2642163B2 | 1997-08-20 |
Other References:
See also references of EP 3578846A4
Attorney, Agent or Firm:
S & S INTERNATIONAL PPC (JP)
Download PDF:
Previous Patent: METHOD FOR PRODUCING γ,δ-UNSATURATED ALCOHOL
Next Patent: DEVICE AND DETERMINATION SYSTEM USING SAME
Next Patent: DEVICE AND DETERMINATION SYSTEM USING SAME