| 摘要 |
PROBLEM TO BE SOLVED: To safely make steering turning operation at an acute steering angle in the steering turning of a full-crawler type tractor or the like. SOLUTION: In this steering turning controller for a full crawler, the full crawler is selectively swtiched, by a rotation mode switch 1, to a loop mode L in which the rotation ratio of a steering side crawler is reduced in rotation in a loop form, a brake mode B in which the steering side crawler is rotated without driving, and a spin mode S in which the steering side crawler is reversely rotated. Further, the full crawler is set so that the turning modes can be changed over in the order of steering angles of a steering wheel 2. At the steering angle of the steering wheel 2, the changeover of a turning mode of a steering angle region smaller than the selection mode by the rotation mode switch 1 can be freely conducted, while restraining the changeover to a turning mode of a steering angle region larger than the selection mode. COPYRIGHT: (C)2004,JPO&NCIPI
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