Title:
WORK VEHICLE
Document Type and Number:
Japanese Patent JP2019111985
Kind Code:
A
Abstract:
To provide a work vehicle designed such that a vehicle body can be maintained in an appropriate position even on a very uneven work land while a simplified drive structure can be achieved.SOLUTION: A work vehicle comprises: a plurality of multi-articulated link mechanisms 4 having two joints and separately supporting running devices 2 on a vehicle body such that the running devices are freely raised or lowered; and drive operation means 5 capable of changing respective positions of the multi-articulated link mechanisms 4. A first link 21 of a plurality of links 21, 22, which is located nearest to the vehicle body is supported so as to freely swing around a lateral axis X1, using a body-side coupling point as a fulcrum. Position fixing means 25 of manual operation system is provided, which is selectively fixable at one of a plurality of swing switch positions, in which the first link 21 has been set in advance. The drive operation means 5 changes position of the link 22 other than the first link 21 of the plurality of links.SELECTED DRAWING: Figure 4
Inventors:
ISHIKAWA JUNICHI
HIRAOKA MINORU
HIRAOKA MINORU
Application Number:
JP2017248208A
Publication Date:
July 11, 2019
Filing Date:
December 25, 2017
Export Citation:
Assignee:
KUBOTA KK
International Classes:
B62D61/12; B62D5/12; B62D11/08
Domestic Patent References:
| JPS61500604A | 1986-04-03 |
Attorney, Agent or Firm:
Patent business corporation r&c