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:
Feb. 17, 2026
Filed:
Aug. 27, 2021
Nissan Motor Co., Ltd., Yokohama, JP;
Exedy Corporation, Neyagawa, JP;
Makoto Ogata, Kanagawa, JP;
Masayuki Ootani, Kanagawa, JP;
Takeshi Senoue, Neyagawa, JP;
Masahiro Nakatani, Neyagawa, JP;
NISSAN MOTOR CO., LTD., Yokohama, JP;
EXEDY CORPORATION, Neyagawa, JP;
Abstract
A friction generating mechanism of a damper apparatus includes a bushing in contact with an annular friction surface of a spline hub, and a cone spring arranged in a compressed state between a retaining plate and the bushing. A first load support surface of the bushing and a second load support surface of the retaining plate have step portions recessed so as to respectively receive an outer peripheral edge and an inner peripheral edge of the cone spring, when the taper of the cone spring is reversed. The radial positions of boundaries of the step portions are in a relationship of D>D, which inhibits the cone spring from being reversed even when an excessive load in the axial direction is input.