Title:
WORK VEHICLE
Document Type and Number:
Japanese Patent JP2019111984
Kind Code:
A
Abstract:
To provide a work vehicle the vehicle body of which is able to maintain an appropriate position even on a very uneven work land, in a work environment where entry of fine dust, water, and so on may occur.SOLUTION: A work vehicle comprises a plurality of running devices 2 driven for running; a plurality of multi-articulated link mechanisms 4 in which a plurality of links 21, 22 are pivotally coupled so as to have two joints and by which the running devices 2 are separately supported on a vehicle body so as to be freely raised or lowered; and a plurality of hydraulic cylinders 5, 6 that are able to change respective positions of the plurality of the links 21, 22 of the multi-articulated link mechanism 4. A first link 21 located in a point nearest to the vehicle body is supported so as to freely swing around a coupling point on a body side. In a first hydraulic cylinder 5 for operating the first link 21, a cylinder tube 5A side is pivotally coupled to a coupled part 20 on the vehicle body side, and a piston rod 5B side is pivotally coupled to a coupled part 21a on a first link 21 side.SELECTED DRAWING: Figure 4
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Inventors:
ISHIKAWA JUNICHI
HIRAOKA MINORU
HIRAOKA MINORU
Application Number:
JP2017248207A
Publication Date:
July 11, 2019
Filing Date:
December 25, 2017
Export Citation:
Assignee:
KUBOTA KK
International Classes:
B62D61/12; B60G3/12; B60K7/00; B62D5/12
Domestic Patent References:
| JP2008213732A | 2008-09-18 | |||
| JP2009254310A | 2009-11-05 | |||
| JP2016113756A | 2016-06-23 | |||
| JPS4876616U | 1973-09-21 | |||
| JPS58157783U | 1983-10-21 | |||
| JP2007290054A | 2007-11-08 | |||
| JP2009096335A | 2009-05-07 | |||
| JPH0174907U | 1989-05-22 |
Attorney, Agent or Firm:
Patent business corporation r&c