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Patent Searching and Data


Title:
WORK VEHICLE
Document Type and Number:
WIPO Patent Application WO/2018/034017
Kind Code:
A1
Abstract:
The purpose of the present invention is to suppress lug down that occurs during a forward/backward movement switching operation or excavation work, and to enable the movement of a work vehicle to be made smoother. Provided is a work vehicle comprising a work device that is operated by hydraulic oil ejected from a main pump, an operation device that operates the work device, auxiliary equipment that is operated by hydraulic oil from an accessory pump, a priority valve that can be switched between a normal position at which the hydraulic oil from the accessory pump is guided to the accessory equipment and a confluence position at which the hydraulic oil from the accessory pump is guided to the operation device, and a forward/backward movement operation device, wherein: the priority valve is maintained in the normal position when either the forward movement direction or backward movement direction indicated by the forward/backward movement operation device and the movement direction of the work vehicle do not match; and the priority valve is switched to the confluence position when either the forward movement direction or backward movement direction indicated by the forward/backward movement operation device and the movement direction of the work vehicle do match and the operation device is being operated.

Inventors:
KAMIYA Jumpei (2680 Oka, Inami-cho, Kako-gu, Hyogo 13, 〒6751113, JP)
TANAKA Hideyuki (2680 Oka, Inami-cho, Kako-gu, Hyogo 13, 〒6751113, JP)
Application Number:
JP2017/008377
Publication Date:
February 22, 2018
Filing Date:
March 02, 2017
Export Citation:
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Assignee:
KCM CORPORATION (2680, Oka Inami-cho, Kako-gu, Hyogo 13, 〒6751113, JP)
International Classes:
F15B11/02; E02F9/22
Foreign References:
JPH0776859A1995-03-20
JP2015158099A2015-09-03
Attorney, Agent or Firm:
THE PATENT BODY CORPORATE TAKEWA INTERNATIONAL PATENT OFFICE (UNIZO Nishishimbashi 3-chome Bldg, 13-3 Nishishimbashi 3-chome, Minato-k, Tokyo 03, 〒1050003, JP)
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