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:
Jul. 19, 2016
Filed:
Dec. 02, 2008
Shinya Fujimura, Susono, JP;
Takahiro Yokokawa, Susono, JP;
Takaho Kawakami, Susono, JP;
Yuji Hattori, Gotenba, JP;
Shinya Fujimura, Susono, JP;
Takahiro Yokokawa, Susono, JP;
Takaho Kawakami, Susono, JP;
Yuji Hattori, Gotenba, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;
Abstract
A sheave positioning device is provided. A valve element is arranged on a flow path to close the flow path when pushed in a direction against a pressure from hydraulic chambers, and a valve closing mechanism is also arranged on the flow path to generate a thrust force for pushing the valve element in the direction against a pressure from the hydraulic chambers. The valve closing mechanism is adapted to generate the thrust force, which is larger than a load to be applied to the valve element to push the valve element in a direction to open the valve element in case a predetermined speed change ratio is being set, but smaller than a load to be applied to the valve element to push the valve element in a direction to open the valve element in case the pressure in the hydraulic chambers is raised to the maximum pressure.