Woodworking – Special-work machine
Patent
1984-06-13
1986-04-15
Bray, W. D.
Woodworking
Special-work machine
144343, 191 12R, 414718, A01G 2308, B27C 900
Patent
active
045821046
ABSTRACT:
A tree processing unit for use in combination with a motorized carrier. The unit comprises a base support pivotably mounted on and extending up from the carrier, which comprises a pair of spaced apart side plates parallel to each other and defining a through passage between them. An elongated, tubular base is fastened to the upper ends of the side plates of the base support. This base extends above the through passage defined by the side plates. A rigid, elongated boom is movably mounted through the base and has a front end on which is fixed a tree processing head for gripping and debranching a felled tree. Means are fixed onto the base in front of the support and through passage therefrom for holding the processed tree. In operation, the felled tree which is usually picked up by the head, then pulled by the boom to the holding means, and subsequently processed by the head moved forwards by the boom while the tree is held by the holding means, may be repositioned with respect to the holding means by using the head to push the tree back through the passage in the support. This makes it possible to process trees even if their length is longer than the boom.
REFERENCES:
patent: 4093047 (1978-06-01), Wampfler
patent: 4219057 (1980-08-01), Falk
patent: 4276918 (1981-07-01), Sigouin
patent: 4413661 (1983-11-01), Marchildon
patent: 4428407 (1984-01-01), Bourbeau
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