| 摘要 |
PROBLEM TO BE SOLVED: To provide a track vehicle of a straight line method by the angle conversion movement by a rotary body, an accident preventive method of a moving body, and an accident preventive moving body, since the track vehicle mainly moving by the straight line method is much in an accident by excessiveness of a speed due to traveling on a track. SOLUTION: Inconvenience mainly caused by the straight line method is eliminated, by mounting or simultaneously using or independently using a system 2 of an angle conversion movement mechanism of reaction by a right angle method of locking a prime mover 7 and the rotary body 3 on the track vehicle 1 moving by the straight line method. COPYRIGHT: (C)2008,JPO&INPIT
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