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:
Nov. 08, 2011
Filed:
Jun. 16, 2009
Michiyasu Nosaka, Anjo, JP;
Yasuo Tabuchi, Toyoake, JP;
Motohiko Ueda, Okazaki, JP;
Yoshiki Tada, Okazaki, JP;
Hiroshi Nagae, Toyohashi, JP;
Masahiro Yamashita, Hamamatsu, JP;
Kouji Kida, Tahara, JP;
Mitsuhiro Tanabe, Toyohashi, JP;
Michiyasu Nosaka, Anjo, JP;
Yasuo Tabuchi, Toyoake, JP;
Motohiko Ueda, Okazaki, JP;
Yoshiki Tada, Okazaki, JP;
Hiroshi Nagae, Toyohashi, JP;
Masahiro Yamashita, Hamamatsu, JP;
Kouji Kida, Tahara, JP;
Mitsuhiro Tanabe, Toyohashi, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A power transmission device includes a pulleyand a hubhaving an inner hub, a rubber damperand an outer hub. A hub side engagement portionformed of an elastic material and arranged at either one, or both, of an inner peripheral surface and an outer peripheral surface of the outer hub engages with a pulley side engagement portion, which is arranged at a position corresponding to the outer hub, of the pulley in a concavo-convex fitting to thereby constitute a torque transmission structure between the hub and the pulley. The hub side engagement portion and the pulley side engagement portion have a concavo-convex outer shape and mesh with each other. A ring-like dust invasion prevention portioncovers a front surface of said concavo-convex fitting.