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:
Feb. 26, 2013
Filed:
Dec. 02, 2009
Takahiro Shiina, Susono, JP;
Akira Murakami, Gotenba, JP;
Hiroyuki Ogawa, Susono, JP;
Daisuke Tomomatsu, Susono, JP;
Takahiro Shiina, Susono, JP;
Akira Murakami, Gotenba, JP;
Hiroyuki Ogawa, Susono, JP;
Daisuke Tomomatsu, Susono, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A continuously variable transmission having a continuously variable transmission mechanism for transmitting torque between an input side and an output side by means of frictional forces generated by pushing the input disc and the output disc against the planetary balls and continuously varying a transmission gear ratio between the input side and the output side includes a second group of helical gears capable of generating a first axial force for pushing the input disc toward the output disc, a first group of helical gears capable of generating a second axial force for pushing the output disc toward the input disc, and a thrust bearing and a central shaft for transmitting, when an opposite force in such a direction as to move the input disc away from the output disc and opposite force to the first force is generated on a side of the input disc, the opposite force to the output disc.