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.:

US 8721487 B1

PDF
Full Text
Expired
Date of Patent:
May. 13, 2014

Filed:

May. 22, 2013
Applicant:

Yamaha Hatsudoki Kabushiki Kaisha, Shizuoka-ken, JP;

Inventors:

Yousuke Ishida, Shizuoka-ken, JP;

Toshinori Inomori, Shizuoka-ken, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 3/74 (2006.01);
U.S. Cl.
CPC ...
Abstract

A straddle-type vehicle is disclosed. The straddle-type vehicle has a planetary gear mechanism having a ring gear rotatable with a crankshaft, a sun gear, and at least two planetary gears. The straddle-type vehicle also has a planetary carrier, a rotary shaft rotating with the sun gear, an output shaft rotating with the planetary carrier, and a CVT having a primary shaft rotatable with the rotary shaft. The straddle-type vehicle further has a primary pulley, a secondary shaft rotatable with the crankshaft, a secondary pulley, and a belt. The straddle-type vehicle additionally has an actuator configured to change a transmission gear ratio of the CVT. The crankshaft, the planetary gear mechanism, the rotary shaft, and the belt-type continuously variable transmission form a cyclic power transmission passage. A centrifugal clutch is disposed within the passage.


Find Patent Forward Citations

Ishida, Yousuke. (2014). Straddle-type vehicle (U.S. Patent No. 8721487). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8721487

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