FORWARD/BACKWARD CHANGE-OVER STRUCTURE OF WORKING MACHINE

摘要

PROBLEM TO BE SOLVED: To provide a forward/backward change-over structure capable of simultaneously performing both the forward/backward change-over and high deceleration while miniaturizing the structure. SOLUTION: A pair of worm wheels 42a and 42b are engaged with a worm gear 41 to be rotated in a predetermined direction by the power from a motor unit so as to be decelerated in a direction opposite to each other, and the decelerated power of different rotational directions taken out from the worm wheels 42a and 42b is transmitted to a traveling system via one of a clutch 43a for forward drive and a clutch 43b for backward drive which are selectively input-operable. COPYRIGHT: (C)2005,JPO&NCIPI