Suspension of towed four-wheel working machine equipment and towed four-wheel working machine using the same

摘要

PPROBLEM TO BE SOLVED: To provide a suspension device of a traction four-wheel working machine which sufficiently ensures a tank capacity while keeping the center of gravity low without changing a wheel pitch even it is the four-wheel working machine, and has both a steering mechanism and a suspension mechanism. PSOLUTION: The suspension device 1A of the traction four-wheel working machine 2 hitched to a tractor is equipped with the steering mechanism 3 which rotatably and pivotally supports a front wheel 23 and a rear wheel 24 at both ends of a hosing 32, and changes the direction of each wheel. The machine body frame 12 of the traction four-wheel working machine 2 is oscillatingly and pivotally supported at an approximately central position of at least one side longitudinal direction of the longitudinal hosing 32, and a buffer member 4 is sandwiched between the hosing 32 and the machine body frame 12. PCOPYRIGHT: (C)2007,JPO&INPIT