Woodworking – Special-work machine – Tree felling
Patent
1987-04-14
1988-08-16
Bray, W. Donald
Woodworking
Special-work machine
Tree felling
144336, A01G 2308
Patent
active
047637056
ABSTRACT:
Tree felling apparatus having a U-shaped base with laterally spaced hollow arms defining a cutting area for receiving therein a tree to be cut and having a chain saw mechanism pivotably mounted to the base centrally between the arms for pivotal cutting movement into and out of the cutting area through the hollow area in one arm of the base. The chain saw mechanism is dimensioned to occupy substantially the full cutting area at the completion of its cutting stroke, and has a distal transverse support flange adapted to be supported at its opposite ends within the hollow areas of each arm at the completion of the cutting stroke to assist the pivotal sw mounting in supporting and stabilizing the chain saw mechanism against damage by the tree. A rotational bearing assembly pivotably supports the chain saw mechanism on the base enabling location of the chain drive motor coaxially with the pivot location of the chain saw mechanism for fixed stationary mounting of the motor relative to the base, while also leaving the underside of the chain saw mechanism unattached to the base and readily accessible for chain replacement in endless form without any required disassembly of any apparatus components.
REFERENCES:
patent: 3672412 (1972-06-01), Albright
patent: 3848648 (1974-11-01), Dika et al.
patent: 4462439 (1984-07-01), Dagenais
Bray W. Donald
CTR Manufacturing, Inc.
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