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    • 10. 发明专利
    • CRAWLER TYPE TRAVELING VEHICLE
    • JPH09133192A
    • 1997-05-20
    • JP29295495
    • 1995-11-10
    • NIKKARI KK
    • ONISHI HISAO
    • F16H15/08F16H61/00
    • PROBLEM TO BE SOLVED: To aim at the promotion of lightweightiness and low-unit cost in a simple structure by judging various operating conditions in a travel device, referring the data of a data holding means, and performing the shift control of engine driving force with a friction disk type shiftmechanism. SOLUTION: When an engine is in a state of being started but a travel device is in stoppage, two rubber rollers 35a and 35b are situated on a racing wheel 32 of friction wheels 31a and 31b. A transmitter 80 delivery a high speed forward indicating signal, while a control part 47 judges a signal to indicate a high speed forward movement from the signal taken into a demodulating signal receiving part 46, and after referring to equivalent data of a memory 48, it drives two servomotors 56a and 56b. With this, shifters 52a and 52b are shifted in the normal direction, then the rubber rollers 35a and 35b shift up to the end at the right, and the rubber rollers 35a, 35b and the friction wheels 31a, 31b are all rotated at the same speed in the same direction, whereby a travel device advances forward at high speed. When backward motion and turning or the like are indicated, a shift control means makes the travel device perform the backward motion and the turning or the like as well. Therefore the promotion of lightweightiness and low-unit cost of production is expedited.