Title:
作業車
Document Type and Number:
Japanese Patent JP7407753
Kind Code:
B2
Abstract:
To solve the problem that it is requested to improve towing force, turning performance and a capability of running on a wet paddy field of a work vehicle.SOLUTION: A work vehicle comprises a running vehicle body having left and right front wheels and left and right rear crawlers 8. The rear crawler 8 comprises: a driving wheel 16 provided in a rear axle 15; a front idle wheel 17 arranged closer to a front side than the driving wheel 16; a rear idle wheel 18 arranged closer to a rear side than the driving wheel 16; a plurality of track rollers 19 arranged between the front idle wheel 17 and the rear idle wheel 18; a crawler belt 20 wound around the driving wheel 16, the front idle wheel 17, the rear idle wheel 18 and the plurality of track rollers 19; and a track frame 21, configured to oscillate with an oscillation axis 26 extending along a lateral direction of the vehicle body as a supporting point, which supports the front idle wheel 17, the rear idle wheel 18 and the plurality of track rollers 19. The oscillation axis 26 is configured to be positionally changed along a longitudinal direction of the vehicle body. The work vehicle further comprises an actuator 34 for changing the position of the oscillation axis 26 and a control device for driving and controlling the actuator 34.SELECTED DRAWING: Figure 2
Inventors:
Takeshi Gono
Takeoka Tatsu
Kazutaka Fujimoto
Takeoka Tatsu
Kazutaka Fujimoto
Application Number:
JP2021033398A
Publication Date:
January 04, 2024
Filing Date:
March 03, 2021
Export Citation:
Assignee:
Kubota Corporation
International Classes:
B62D55/02; B62D49/00
Domestic Patent References:
| JP2013177059A | ||||
| JP200417788A | ||||
| JP4505902A | ||||
| JP201251389A | ||||
| JP2018144663A |
Foreign References:
| DE102016118479A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation R&C