Round haybale unloader

Details Round haybale unloader Round haybale unloader

A - Human Necessities

01

D

214/87.1

A01D 90/10 (2006.01) A01D 87/12 (2006.01)

Patent

CA 1277960

ABSTRACT OF THE DISCLOSURE A round haybale unloader is disclosed for transporting and unwinding cylindrical bales of hay, straw or like fibrous agricultural material. The invention provides a relatively compact, self-powered and self- propelling unloader for unrolling a continuous sheet of agricultural material from a cylindrical bale. The haybale unloader allows for convenient transport of bales and is easily operated by a single person. In a preferred embodiment, the unloader comprises a wheeled frame on which are disposed a support surface for a bale and a conveyor having a forward discharge end and rearward receiving end. The support surface and conveyor are upwardly inclined in the direction of discharge. A sloped limiting surface is disposed adjacent the receiving end of the conveyor and extends upwardly therefrom in an obtuse angle relationship thereto. A laterally spaced apart pair of freely pivoting bale retaining arms is provided for rotatably retaining the bale against the support surface and limiting surface. A clamping disk and spear assembly is disposed at each free terminal end of the retaining arms and is adapted for slidable and rotatable interconnection therewith and for engagement with the respective end surfaces of a bale near its central longitudinal axis. The conveyor unrolls a bale placed onto the support surface by imparting a rotative movement to the bale about its central longitudinal axis and drawing therefrom a continuous sheet of agricultural material for distribution along the ground adjacent the discharge end of the conveyor. The limiting surface arrests the rearward motion of the bale and the bale retaining arms stabilize the rotative movement of the bale throughout the unrolling thereof. A winch and retractable loading ramp may be provided for loading the bale onto the support surface. The unloader also comprises a steering mechanism and a drive source for actuating the conveyor, winch and rear wheels of the frame.

582696

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