Apparatus for retracting and extending a boom

Details Apparatus for retracting and extending a boom Apparatus for retracting and extending a boom

A - Human Necessities

01

G

A01G 23/095 (2006.01) B66C 1/58 (2006.01) B66C 23/30 (2006.01) B66C 23/36 (2006.01) B66C 23/70 (2006.01)

Patent

CA 2248392

The invention provides a drive system for extending or retracting a boom. The boom comprises an elongated boom slidably mounted to a vehicle. The drive system comprises: a flat belt extending generally parallel to the boom; a rotatable drum mounted to the vehicle; and a pair of spaced apart rollers adjacent the rotatable drum. The belt is attached to the boom by couplings at either end of the belt, a loop of the belt extends through a gap between the pair of spaced apart rollers and around an outer circumference of the rotatable drum. The gap has a width less than a diameter of the rotatable drum. The drive system can be used to advantage in a forestry machine such as a tree delimber.

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