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. 10, 2010
Filed:
Mar. 14, 2007
Kazuhisa Takemoto, Saitama, JP;
Masafumi Taki, Saitama, JP;
Kazuhisa Takemoto, Saitama, JP;
Masafumi Taki, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A shift drum apparatus is reduced in weight relative to conventional shift drums. The shift drum includes a shift fork, a shift drum main body, and a lid member. The shift fork is slidably mounted on a shift fork support shaft. The shift fork changes a gear position of a transmission mechanism. The shift drum main body is formed into a hollow cylindrical shape. The shift drum main body has an end face on a first side thereof in a cylindrical axis direction that is open to form an opening portion. The shift drum main body further includes a cam groove formed on an outer circumferential surface thereof. An end portion of the shift fork is fitted in this cam groove to allow the shift fork to slide. The lid member is disc-shaped and mounted by being press-fitted in the opening portion of the shift drum main body.