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:
Sep. 04, 2012
Filed:
Sep. 30, 2009
Toshinori Inomori, Shizuoka, JP;
Yousuke Ishida, Shizuoka, JP;
Toshinori Inomori, Shizuoka, JP;
Yousuke Ishida, Shizuoka, JP;
Yamaha Hatsudoki Kabushiki Kaisha, Shizuoka, JP;
Abstract
A cam faceand a cam faceare formed in such a manner that an angular velocity ω represented by the following equation increases when a parameter R increases and the angular velocity ω decreases when the parameter R decreases,ω=(1)·[(tan α+tan β)/where the mass of the centrifugal weight () is m, the revolution radius that is the distance from the rotation center () of the centrifugal weight () to the center of gravity of the centrifugal weight () is R, the angle formed by a radial line (L) and a tangent line (L) of a point of the cam face () being in contact with the centrifugal weight () is α, the angle formed by a radial line (L) and a tangent line (L) of a point in the cam face () being in contact with the centrifugal weight () is β, and the urging force of a Belleville spring that urges a roller retainer () is F.