Title:
The oil pressure system of a work machine
Document Type and Number:
Japanese Patent JP6148196
Kind Code:
B2
Abstract:
A hydraulic system includes a motor. A brake is to be actuated by an operation fluid to brake the motor when a hydraulic pressure is relieved and to release the braking when the hydraulic pressure is applied. A switch valve is to be switched to a first position and to a second position, the first position being provided for relieving the hydraulic pressure from the brake, the second position being provided for applying the hydraulic pressure to the brake. A first fluid tube is to connect the switch valve and the brake. A second fluid tube is connected to the first fluid tube at a connecting portion and communicated with a tank A first throttle is disposed on the second fluid tube. A second throttle is disposed on the first fluid tube and on an upstream side between the connecting portion and the switch valve.
Inventors:
Fukuda Yushi
Kazuyoshi Arii
Kazuyoshi Arii
Application Number:
JP2014072154A
Publication Date:
June 14, 2017
Filing Date:
March 31, 2014
Export Citation:
Assignee:
Kubota Corporation
International Classes:
E02F9/20; F15B20/00; F15B11/04; F15B11/08
Domestic Patent References:
| JP2010209637A | ||||
| JP2005214327A | ||||
| JP20141609A | ||||
| JP346554U | ||||
| JP200127202A |
Attorney, Agent or Firm:
Toshio Yasuda
Mikio Yasuda
Mikio Yasuda