| 摘要 |
PURPOSE:To improve running ability on a soft ground and to prevent stamping down of crops, by a method wherein a set of walking parts, walking in a state to alternately vertically move two leg bodies on both sides are provided, and the walking parts are disposed one at each of both sides in a state to astride a machine body. CONSTITUTION:An engine 3 is integrally coupled to the front of a transmission case 1 through a transmission case 2 to form a machine body. Axle transmission cases 5 are coupled to both sides of a running clutch case 4 connected to the upper part of the transmission case 1, the upper part of an axle case 6 is secured to the outermost end of each case 5, and two-piece set leg bodies 7 and 7 for walking are secured to the lower part thereof. The upper end of each leg body 7 is supported to the other end of a rocking arm 12 rockably supported to a fulcrum bracket 22, and the intermediate part of each leg body 7 is coupled to the tip of a rotary arm 13 the base end of which is mounted to both ends of an output shaft. Rotation of the rotary arm 13 causes alternately vertical movement of one set of the leg bodies 7 and 7 on both sides. |
