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:
Apr. 15, 2008
Filed:
Sep. 09, 2004
Shigemi Hidaka, Osaka, JP;
Youichirou Nishi, Osaka, JP;
Takeshi Kishimoto, Osaka, JP;
Yanmar Co., Ltd., Osaka, JP;
Abstract
A travel working machine includes a traveling bodysupported by traveling contrivances such as wheelsand provided with an enginea transmission casemounted to the traveling body, and a hydraulic mechanical transmission mounted to the transmission case for changing speed of power from the engine by a combination of a planetary gearingand a hydraulic transmission which includes a hydraulic pumpand a hydraulic motorand transmitting the power to the traveling contrivances. A pump input shaftfor input to the hydraulic pump, a motor output shaftfor output from the motor and transmission gearsprovided at the respective shafts are arranged in the transmission case and above an oil level S of lubricating oil stored in a lower portion of the transmission case. Such an arrangement contributes to reducing power loss.