| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hoist mechanism of a transporting machine that can improve in stability of a load-carrying platform in a standing state and alleviate a load applied from hoist cylinders to the load-carrying platform. <P>SOLUTION: A hoist mechanism of a dump truck 1A, which includes a pair of hoist cylinders 3a and 3b extendably arranged to be separated from a rise-and-fall load-carrying platform 1, respectively, and a pair of engaging parts provided on both sides of the load-carrying platform 1 and engaged with plates 13a and 13b when each of the hoist cylinders 3a and 3b is extended, and makes the load-carrying platform 1 rise and fall by extending or contracting the hoist cylinders 3a and 3b. includes a pair of guiding means for guiding the plates 13a and 13b of the pair of hoist cylinders 3a and 3b to the engaging parts, respectively, and controlling means 11a and 11b for controlling extending and contracting speeds of the pair of hoist cylinders 3a and 3b according to positions of the engaging parts when the pair of hoist cylinders 3a and 3b are engaged to the engaging parts, respectively. <P>COPYRIGHT: (C)2013,JPO&INPIT |
