Woodworking – Feeder or presser – Nonfeeding presser
Patent
1999-02-24
1999-12-07
Bray, W. Donald
Woodworking
Feeder or presser
Nonfeeding presser
1442421, 1442485, 1442487, 144336, 1986921, 1986991, 198729, 1987813, 198793, 226173, 226192, B23B 3100, B27C 112, A01G 2300
Patent
active
059966580
ABSTRACT:
The present invention relates to a feed roller (1) by means of which a felled tree (2) trunk is fed into a timber harvester for delimbing. The apparatus comprises a drive wheel (4) and at least one transmission means (5) arranged at the outer circumference of and controlled by the drive wheel, the transmission means having engagement plates (3) provided with gripping means (14). The apparatus efficiently equalizes surface pressure exerted on the tree (2) trunk, even though the drive wheel is without cushioning rubber material. The transmission means (5) arranged on the drive wheel (4) is longer than the wheel perimeter. Consequently, the transmission means is arranged to form a plane surface between the drive wheel and the tree trunk, whereby a continuous surface pressing evenly against the tree trunk is formed on the wood side in the apparatus.
REFERENCES:
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patent: 3045728 (1962-07-01), Hutchinson et al.
patent: 3687271 (1972-08-01), Lindblum
patent: 4766939 (1988-08-01), Forslund
patent: 5152328 (1992-10-01), Arvidsson
patent: 5163489 (1992-11-01), Ketonen
patent: 5355920 (1994-10-01), Tanquay
patent: 5739325 (1998-04-01), Timperi
Bray W. Donald
Ponsse OYJ
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