The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 13, 2019
Filed:
Nov. 22, 2017
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Yanqing Liu, Susono, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A suspension device for a vehicle includes a spring device disposed between a sprung member and an unsprung member of a vehicle and allowing a relative displacement between the sprung member and the unsprung member. The spring constant kof the spring device when the spring device is deformed in the direction in which the spring device contracts with respect to the predetermined reference length is configured to be smaller than the spring constant kof the spring device when the spring device is deformed in the direction in which the spring device expands with respect to the predetermined reference length. Consequently, it is possible to obtain a characteristic opposite to the spring characteristic of the seat, and as a result, ride quality can be improved.