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. 09, 2017
Filed:
Mar. 01, 2011
Minoru Wada, Mooka, JP;
Toshiyuki Ota, Komatsu, JP;
Minoru Wada, Mooka, JP;
Toshiyuki Ota, Komatsu, JP;
Komatsu Ltd., Tokyo, JP;
Abstract
A damper operation control device of a working vehicle, includes: a boom pivotably supported on a vehicle body; a bucket pivotably supported on a tip end of the boom; a lift cylinder which drives the boom; an accumulator connected to the lift cylinder through a branched oil passage; a switching valve connected to the branched oil passage between the lift cylinder and the accumulator, the switching valve switching between a connected state and a disconnected state between the lift cylinder and the accumulator; and a controller which performs switch control of the switching valve, wherein the controller includes: a state detecting unit which detects whether the bucket is in a loaded state; and a switching valve control unit which switches the switching valve to the connected state when the state detecting unit detects that the bucket is in the loaded state.