CONVEYOR TRUCK

申请公布号：

JPH05246346(A)

申请号：

JP19920050658

申请日期：

1992.03.09

申请公布日期：

1993.09.24

申请人：

MITSUBISHI HEAVY IND LTD

发明人：

YOSHIMOTO YUTAKA

分类号：

B61F5/00;B62D7/14;(IPC1-7):B62D7/14

主分类号：

B61F5/00

摘要：

PURPOSE:To dispense with a moving space at the turning time with compact and simple constitution by providing a rod for connecting a set of wheels mounted to the right and left sides of the lower face of a truck so as to rotate the wheels in the same direction, and providing pistons for driving the rod to change the direction of the wheels. CONSTITUTION:Plural sets of forks 2 with traveling wheels 1 fitted thereto are rotatably journalled to the lower face of a truck frame 3, and arms 5 fixed to the forks 2 are mutually interlocked through rods 6. A double acting type two-stage expansion cylinder 11 is integrated between the truck frame 3 and the center arm 8 of an oscillating means for the arms 5, and two sets of pistons 11a, 11b are provided therein. With the expansion of one of the pistons 11a, 11b, the traveling wheels 1 perform the direction changing action in the longitudinal or lateral right-angled direction, and with the expansion of the other piston, the traveling wheels l perform the steering adjusting action in the respective longitudinal-lateral directions. These actions are performed independently by the double acting mechanism of one cylinder 11 so as to perform easy steering in an optional direction in the same position.