| 摘要 |
<p>LIFT MECHANISM FOR A DUMP TRUCK A lift mechanism for a dump truck operative to pivot the dump body rearwardly about a pivot axis at the rear of the hoist frame and operative to pivot the dump body about a pivot axis at the front of the hoist frame. The mechanism includes a lift arm assembly pivotally mounted in the hoist frame and operatively connected to the body. A power cylinder is pivotally connected at one end to the hoist frame and at the other end to the lift arm assembly. First and second pivot supports are located at the rear and front of the hoist frame respectively. A latch means is operative to selectively latch the body to the first and second pivot supports. The second pivot support at the front of the hoist frame includes a support shaft which is adapted for horizontal sliding movement on the hoist frame by means of a pair of horizontal guide rods to which the opposite ends of the support shaft are slidably attached. Thus, when the body is tilted forwardly, the support shaft upon which it is pivoted will slide rearwardly to thereby prevent intereference between the dump body and the truck cab.</p> |
