| 摘要 |
PROBLEM TO BE SOLVED: To provide a working vehicle capable of continuously traveling at crawling speeds while performing predetermined operations at the target site without impeding normal high-speed running performance. SOLUTION: The normal travel of a vehicle and operations using external working equipment can be performed selectively, and a hydraulic pump 20 is connected to the external power takeout shaft 12 of an external power takeout mechanism 3'. A hydraulic power transmitter 22 for crawling, having a hydraulic motor 21 connected to the hydraulic pump 20, is connected to rotary power transmission shafts 4, 5 to constitute an auxiliary travel device B. During the actuation of the external working equipment, the auxiliary travel device B is driven at the same time to enable the vehicle to travel at crawling speeds. When a main transmission 3 for normal travel has deviated from a neutral position, power transmission by the external power takeout mechanism 3' and the hydraulic power transmitter 22 for crawling can be invalidated immediately. |
