Title:
作業車両
Document Type and Number:
Japanese Patent JP7326225
Kind Code:
B2
Abstract:
To provide a work vehicle that is able to operate a parking brake both manually and automatically with a simple configuration.SOLUTION: A parking brake 71 is a negative brake and is configured such that a rotating body that rotates during traveling is braked by urging force of a brake spring 72 and the brake is released by hydraulic pressure. A solenoid valve 75 that switches between a state of permitting supply of hydraulic pressure and a state of blocking supply of hydraulic pressure is interposed in a brake oil passage 74 that supplies the parking brake 71 with hydraulic pressure for releasing a brake. A manual valve 76 for switching between a state of manually permitting supply of hydraulic pressure and a state of blocking supply of hydraulic pressure is interposed in the brake oil passage 74 that supplies the parking brake 71 with hydraulic pressure for releasing a brake.SELECTED DRAWING: Figure 3
Inventors:
Kiso Yusei
Seiji Hotta
Seiji Hotta
Application Number:
JP2020113485A
Publication Date:
August 15, 2023
Filing Date:
June 30, 2020
Export Citation:
Assignee:
Kubota Corporation
International Classes:
B60T15/36; A01D69/03; A01D69/10; B60K17/10; B60T13/22; B60T13/68
Domestic Patent References:
| JP2002053027A | ||||
| JP2019156182A | ||||
| JP2019157407A |
Attorney, Agent or Firm:
Yuichi Minagawa
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