Woodworking – Special-work machine – Tree felling
Patent
1990-02-05
1990-09-25
Bray, W. Donald
Woodworking
Special-work machine
Tree felling
303795, 83928, 144336, A01G 2308, B27B 1708
Patent
active
049586700
ABSTRACT:
A tree felling apparatus having a U-shaped base with a pair of laterally spaced arms defining a cutting area for receiving therein a tree to be cut and having a chain saw mechanism movable through the cutting area for cutting a tree includes saw tracking device, an apparatus for adjusting the tension of the endless saw chain of the chain saw mechanism and a resilient member. The saw tracking device defines a tracking area for confined receipt of the distal end portion of the chain saw assembly during tree cutting movement thereof for limiting the deflection of the chain saw assembly which may be caused by reactive forces exerted by a tree being cut. The apparatus for adjusting the tension of the endless saw chain includes a support member mounted to the distal end of a saw bar of the chain saw mechanism and an adjusting member having an noise roller rotatably mounted thereto. The adjusting member is pivotally mounted to the suport member for selective movement of the nose roller generally toward and away from the drive roller of the chain saw assembly for tensioning the endless saw chain for normal tree cutting movement thereof and for slackening the endless saw chain for mouting and demounting the endless saw chain for service, repair and replacement thereof. The resilient member is mounted between a base means and a mounting member of the tree felling apparatus and is adapted to resiliently deform in response to deflection of the saw means resulting from reactive forces exerted thereagainst by a tree being cut.
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Bray W. Donald
CTR Manufacturing, Inc.
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