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. 12, 2014
Filed:
Mar. 20, 2012
Kosaku Takahashi, Wako, JP;
Dai Arai, Wako, JP;
Junya Watanabe, Wako, JP;
Masataka Tanaka, Wako, JP;
Masahiko Tsuchiya, Wako, JP;
Satoru Nojima, Wako, JP;
Kosaku Takahashi, Wako, JP;
Dai Arai, Wako, JP;
Junya Watanabe, Wako, JP;
Masataka Tanaka, Wako, JP;
Masahiko Tsuchiya, Wako, JP;
Satoru Nojima, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A dog-clutch transmission system having dog-clutches is provided that can effectively lower the sound resulting from the engagement of dogs during the meshing of gears. A dog-clutch transmission system includes first gears installed adjacent to each other on respective shafts so as not to be rotatable relatively to the respective shafts and to be axially slidable; and second gears installed so as to be rotatable relatively to the respective shafts and not to be axially slidable. Each of the first gears has dog-teeth projecting in the axial direction and each of the other gears has dog-holes recessed in the axial direction. Speed-stages are switchable by bringing the dog-teeth and the dog-holes into engagement and disengagement. A speed-change ratio proportion of a change-speed ratio at an arbitrary n-speed speed-stage to a speed-change ratio at a (n+1)-speed speed-stage is set at 0.725 or more.