Title:
WORK VEHICLE
Document Type and Number:
Japanese Patent JP2020001441
Kind Code:
A
Abstract:
To provide a work vehicle that is able to ensure satisfactory ground drive for a plurality of running wheels even in a case where a vehicle body runs in a very rough work place while maintaining a proper position.SOLUTION: A work vehicle comprises: a plurality of running drive devices 6 that separately drive a plurality of running wheels 2; a raising/lowering support mechanism 4 that separately supports the plurality of running wheels 2 on a vehicle body such that the wheels are freely raised or lowered; a plurality of position change operation means 5 capable of separately changing respective positions of the plurality of raising/lowering support mechanisms 4; control means that controls operations of the position change operation means 5; and idle rotation detection means Q that detects whether each running wheel 2 is in a state of idle rotation. When the idle rotation detection means Q detects that the running wheel 2 is in the state of idle rotation, the control means controls the corresponding position change operation means 5 such that the raising/lowering support mechanism 4 lowers this running wheel 2.SELECTED DRAWING: Figure 1
Inventors:
ISHIKAWA JUNICHI
HIRAOKA MINORU
HIRAOKA MINORU
Application Number:
JP2018119979A
Publication Date:
January 09, 2020
Filing Date:
June 25, 2018
Export Citation:
Assignee:
KUBOTA KK
International Classes:
B62D61/12
Domestic Patent References:
| JPH09501630A | 1997-02-18 | |||
| JP2005212671A | 2005-08-11 | |||
| JPH061157U | 1994-01-11 | |||
| JP2017165169A | 2017-09-21 |
Attorney, Agent or Firm:
Patent business corporation r&c