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:
May. 08, 2018
Filed:
Mar. 19, 2015
Applicant:
Kubota Corporation, Osaka-shi, JP;
Inventors:
Akifumi Nishino, Sakai, JP;
Ryo Masuda, Sakai, JP;
Assignee:
Kubota Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 61/439 (2010.01); F16H 61/437 (2010.01); F16H 59/02 (2006.01);
U.S. Cl.
CPC ...
F16H 61/439 (2013.01); F16H 61/437 (2013.01); B60Y 2200/221 (2013.01); F16H 2059/0234 (2013.01);
Abstract
A neutral biasing mechanism in a hydrostatic continuously variable transmission includes a plurality of springs attached so as to be spanned from a pivot arm to a base. The plurality of springs bias the pivot arm such that a roller is fitted into a cam portion. A variable spring configured such that a biasing force thereof can be changed and another spring that is different from the variable spring are provided as the plurality of springs. The variable spring and the other spring are arranged at separate positions in a state where attachment positions thereof in the pivot arm and the base are separate from each other.