Tree processing apparatus

Details Tree processing apparatus Tree processing apparatus

1991-05-20

1992-04-28

Bray, W. Donald

Woodworking

Process

Timber harvesting or processing

144 2Z, 144 3D, A01G 2308

Patent

active

051079127

ABSTRACT:
Tree processing apparatus having a knuckle boom mounted at one end on a vehicle. A stick boom is pivotally mounted at one end onto the knuckle boom near its other end. The other end of the stick boom projects past the other end of the knuckle boom and a tree processing head is suspended from the other end of the stick boom. The stick boom can be pivoted up from the knuckle boom raising the processing head above the other end of the knuckle boom and thereby permitting the other end of the knuckle boom to be planted on the ground to allow the knuckle boom to act as a lever to help free the vehicle if it becomes stuck.
The vehicle carries a tubular member for passively supporting the butt end portion of a tree to be processed by the processing head.

REFERENCES:
patent: 3542099 (1970-11-01), Gibson et al.
patent: 3882910 (1975-05-01), Peltola et al.
patent: 3905407 (1975-09-01), Guy et al.

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