STRUCTURE FOR TRAVELING SPEED CHANGE OF WORKING VEHICLE

摘要

PROBLEM TO BE SOLVED: To improve operation efficiency while ensuring stability of a machine body during turning in a structure for traveling speed change of a working vehicle. SOLUTION: The structure for the traveling speed change is equipped with a decelerating means for performing decelerating operation of a traveling speed V1 of the machine body when the traveling speed V1 of the machine body detected with a speed sensor during start of turning of the machine body is higher than the set speed V11 set beforehand. Furthermore, the structure for the traveling speed change is provided with a restraining means for blocking the operation of the decelerating means if the traveling speed V1 of the machine body detected with the speed sensor at the start of turning of the machine body is lower than the set speed V11 when the start of turning of the machine body is detected. COPYRIGHT: (C)2009,JPO&INPIT