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:
Nov. 19, 2013
Filed:
Nov. 01, 2006
Tsutomu Udagawa, Tsukuba, JP;
Eiji Egawa, Tsuchiura, JP;
Tsukasa Toyooka, Omitama, JP;
Makoto Sugaya, Narita, JP;
Hideo Sorata, Kasumigaura, JP;
Tsuyoshi Nakamura, Tsuchiura, JP;
Akira Nakayama, Tsuchiura, JP;
Kazuo Takiguchi, Kasumigaura, JP;
Kensuke Satou, Ushiku, JP;
Tsutomu Udagawa, Tsukuba, JP;
Eiji Egawa, Tsuchiura, JP;
Tsukasa Toyooka, Omitama, JP;
Makoto Sugaya, Narita, JP;
Hideo Sorata, Kasumigaura, JP;
Tsuyoshi Nakamura, Tsuchiura, JP;
Akira Nakayama, Tsuchiura, JP;
Kazuo Takiguchi, Kasumigaura, JP;
Kensuke Satou, Ushiku, JP;
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Abstract
A travel control device for a work vehicle includes: a hydraulic pump; a plurality of hydraulic motors connected to the hydraulic pump in parallel through a closed-circuit connection, that drive different wheels with pressure oil delivered from the hydraulic pump; a slip detection device that detects a slip occurring at each of the wheels; and a flow control device that reduces, upon detection of a slip occurring at any of the wheels by the slip detection device, a quantity of pressure oil supplied to a hydraulic motor for driving the wheel at which the slip has been detected, among the plurality of hydraulic motors.