OIL PRESSURE CONTROLLING LINKAGE FOR PADDY FIELD WORKING VEHICLE

摘要

PROBLEM TO BE SOLVED: To obtain a working vehicle capable of shortening the length of the body by locating the connecting member moving a rotary supporting pivot of a swing arm which is interlocking to the operation of a planting depth control lever, in nearly vertical direction. ;SOLUTION: The planting part is liftably supported by a hydraulic cylinder, in the automatic lifting and lowering time, the planting part rises by the action of a hydraulic valve through a detecting plate 62, swing arms 75a, 75b and a linkage when the front part of a float 14 rises, on the contrary, the planting part lowers by the action of the hydraulic valve when the front part of the float 14 lowers. At the same time, the rotary support 75 pivoting the swing arms 75a, 75b moves through the connecting members 64a, 64b interlocking to the operation of the planting depth control lever 68, this connecting members 64a, 64b are located in the nearly vertical direction connecting the supporting point 21 of the lifting and lowering linkage and the connecting part 62a of the detecting plate 62 and the float 14, as the result the total length of the vehicle body can be set shortly.;COPYRIGHT: (C)1998,JPO