| 摘要 |
PURPOSE:To avoid lateral dragging of an earth working attachment, by linking the earth working attachment by way of a yawing universal joint, and making the attachment to be moved and displaced toward the inside of the turning direction of a body. CONSTITUTION:A stable grounding type running body 3 has front and rear wheels 1 and 2. The yawing universal joint 5 supports a first pivot shaft 4, whose axial line is directed in the up and down direction. The joint 5 is provided at the front part of the running body 3. Said running body 3 is provided with a steering device 11 which steers the front wheels 1 and 1 to the right and left. The base end of a linking rod 13 is pivoted to a steering rod 12 of said steering device 11. The free end of the linking rod 13 is engaged with an arm which is protruded in the eccentric direction with respect to the first pivot shaft 4 from a fixing table 6. Thus a mowing machine 9 is directed to the inside of the turning by a turning device 15 in association with the steering device 11 of a steering wheel. |
