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:
May. 15, 2018
Filed:
Sep. 13, 2013
Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;
Exedy Corporation, Neyagawa-shi, Osaka, JP;
Tomoharu Fujii, Kanagawa, JP;
Yuuzou Akasaka, Kanagawa, JP;
Hiroki Uehara, Kanagawa, JP;
Yoshinari Yoshimura, Osaka, JP;
Takeshi Senoue, Osaka, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Exedy Corporation, Osaka, JP;
Abstract
A damper device is provided with a first rotating body, a second rotating body, a coil spring and a spring seat. The coil spring is interposed in a circumferential direction between the first and second rotating bodies. The resin spring seat includes a seat portion, an overhang portion and a pair of clamping protrusions. The overhang portion extends in the circumferential direction from an outer diameter end of the seat portion and covers an outer diameter side of the coil spring. The clamping protrusions protrude from the seat portion and sandwich an attaching portion of the one of the rotating bodies. The clamping protrusions are relatively turnable in a radial direction of the rotating bodies. The clamping protrusions have a low-rigidity portion on an outer diameter direction side of the spring central axis and a high-rigidity portion on an inner diameter direction side of the spring central axis.