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:
Dec. 14, 2010
Filed:
Jul. 28, 2006
Applicants:
Yoichiro Yamazaki, Hiroshima, JP;
Nobuyoshi Hataoka, Hiroshima, JP;
Hiroshi Togo, Hiroshima, JP;
Inventors:
Assignee:
Kobelco Construction Machinery Co., Ltd., Hiroshima-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16D 31/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A control device includes an arm cylinder having a cylinder body and a piston that slides inside the cylinder body and a pump that supplies working oil to the arm cylinder, and decelerates the piston when it approaches a stroke end of the arm cylinder by adjusting a supply rate of the working oil supplied from the pump to the arm cylinder and a discharge rate of the working oil discharged from the arm cylinder. The position at which the piston starts decelerating is set further from the stroke end as the moving speed of the piston becomes higher.