クローラ式トラクタ

Crawler type tractor

Abstract

PROBLEM TO BE SOLVED: To provide a crawler type tractor capable of reducing traveling resistance during turning and road running. SOLUTION: In this tractor, steerable front wheels are provided at a front part of a machine, and a crawler is mounted to a rear part of the machine. The tractor is constituted in a manner that a crawler ground length is longer at a low speed traveling time, and shorter at a high speed traveling time, or the crawler ground length is shorter during swiveling and longer after swiveling. Or, a working machine at a rear part of the machine is moved upwards at the swiveling time, and simultaneously a crawler front part is moved upwards, so that the crawler ground length becomes short. COPYRIGHT: (C)2004,JPO
【課題】旋回時及び道路走行時の走行抵抗を削減できるクローラ式トラクタを提供する。 【解決手段】機体の前部に操舵可能な前輪を備え、機体の後部にクローラを装着したトラクタに於いて、低速走行時にクローラ接地長を長く、高速走行時にクローラ接地長を短くなるように、あるいは旋回時にクローラの接地長が短くなり、旋回後に接地長が長くなるように構成し、あるいは旋回時に機体後部の作業機を上昇させ、これと同時にクローラ前部を上昇させてクローラの接地長が短くなるように構成する。 【選択図】図3

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