TRACTION TYPE GRADER AND LAND PREPARATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To ensure that a tilt angle is kept unchanged even if a blade is moved vertically with an angle, and the blade is moved up to the vicinity of a vehicle frame to be able to keep the distance between the blade and the ground sufficiently.;SOLUTION: A traction type grader G towed by a traction vehicle T to perform land preparation, comprising a vehicle frame 1 having a connection part 1c to the traction vehicle T at a front part 1a, a plurality of wheels 2a, 2b provided in the vehicle frame 1, and a blade 6 arranged on the underside of the vehicle frame 1 while supported by the vehicle frame 1, the grader provided with a parallel link mechanism 3 attached to the vehicle frame 1 to support the blade 6, and a lift driving device 11 located on the upper side of the vehicle frame 1 and having both the ends connected to the vehicle frame 1 and the parallel link mechanism 3.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2018,JPO&INPIT