SELF-PROPELLED CABLE BURYING APPARATUS

摘要

A cable burying apparatus is mounted to a self-propelled tractor which can be ridden by the operator. The cable burying function is achieved by a blade which oscillates in a vertical plane parallel to the front to rear axis of the tractor. The upper end of the blade is pivoted to the top of a housing and a connecting rod driven by an eccentric is connected between the ends of the blade so that rotation of the shaft which mounts the eccentric will oscillate the bottom end of the blade. The housing also carries the eccentric and the shaft which drives the eccentric. Power for the rotation of the shaft is taken from a prime mover that is used to drive the tractor and is coupled to the eccentric shaft by a belt and pulley system including a pulley which is connected to the eccentric shaft. The entire housing is pivotally mounted to the rear of the tractor and can be swung between positions that raise the blade upward away from the ground and that move the blade down into the ground. This can be done by hydraulic means under the control of the operator without leaving his seat and without regard to whether the tractor is moving or not. The blade may have a chute for leading wire or cable through the chute to the bottom of the blade from the top thereof, or it may have a connection at its bottom end to enable a cable or pipe to be connected thereto to be pulled through the ground. In either case there is a narrow slit trench cut by the oscillation of the blade and the cable or pipe is disposed in the bottom of the trench.