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. 07, 2012
Filed:
Sep. 17, 2008
Yoshiaki Tsukada, Saitama, JP;
Takashi Ozeki, Saitama, JP;
Hiroyuki Kojima, Saitama, JP;
Yoshiaki Nedachi, Saitama, JP;
Haruomi Sugita, Saitama, JP;
Yoshiaki Tsukada, Saitama, JP;
Takashi Ozeki, Saitama, JP;
Hiroyuki Kojima, Saitama, JP;
Yoshiaki Nedachi, Saitama, JP;
Haruomi Sugita, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A twin clutch speed-change apparatus that can reduce shift shock includes a transmission with multiple gear pairs disposed between a main shaft and a countershaft. A twin clutch is provided on the main shaft, a rotational drive force from an engine being connected/disconnected between the transmission and the engine, a dog clutch is provided between an axially slidably attached slidable gear and an axially non-slidably attached non-slidable gear to select a gear pair, for transmitting a rotational drive force, from the multiple gear pairs. Dog teeth of the dog clutch include steps different in axial height from each other between a portion abutted against a lateral wall surface of a dog hole when the rotational drive force is transmitted by the dog clutch, and a portion abutted against a lateral wall surface of the dog hole when the rotational drive force is not transmitted by the dog clutch.