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:
Dec. 22, 1987
Filed:
Dec. 24, 1986
Applicant:
Inventors:
Assignee:
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
743375 ; 192 51 ; 192 / ;
Abstract
A transmission includes a forward shift drum and an overlying and coaxial reverse shift drum. The drums are rotatable, but not longitudinally translatable with respect to each other. The drums each include lead grooves for guiding a shift fork pin therealong in portions of the grooves which overlap and intersect each other. When one of the lead grooves guides the shift fork pin into a gear position, the other lead groove serves as a stop, so that unintentional engagement of remaining gears with the drive shaft is prevented without the use of a separate special lock mechanism.