| 摘要 |
<p>Means for attaching a grapple to a crawler tractor, articulated wheel vehicle or the like. The vehicle has a main frame and winch casing mounted on the rear thereof and includes a winch shaft positioned normal to the longitudinal axis of said vehicle. An arch structure and means for pivotally mounting it to said vehicle is provided and includes a pair of side arms for detachable connection to the main frame of the vehicle; means on said side arms for pivotally supporting the arch structure and including a pivot pin mounted in each of the side arms and in alignment with each end of the winch shaft. The arch structure includes spaced leg members the lower ends of which are mounted on pivot pins arranged such that the pivot point of said arch structure is coaxial with but not connected to the axis of the winch shaft.</p> |
