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. 11, 2012
Filed:
Jan. 28, 2010
Yohei Nakate, Tsuchiura, JP;
Shinji Akino, Ushiku, JP;
Yohei Nakate, Tsuchiura, JP;
Shinji Akino, Ushiku, JP;
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Abstract
In the course of largely tilting a vessel () backward of a vehicle body () by a hoist cylinder (), occasionally the rear end portion of the vessel () runs into an embankment (A) of dumped earth and sand. In consequence, a load by a vehicle weight to be applied to a rear suspension (A) suspending the side of a rear wheel () of a vehicle is rapidly reduced. Therefore, an inner pressure (P) in the rear suspension (A) detected by a pressure sensor () is rapidly lowered. In this case, a controller () controls the hoist cylinder () according to the inner pressure (P) in the rear suspension (A) to stop an extension operation of the hoist cylinder (). This can suppress occurrence of a state where the side of the rear wheel () of the vehicle body () is raised upward, that is, a jack-up state.