Cutting device for a board machine

Details Cutting device for a board machine Cutting device for a board machine

1989-04-07

1990-10-16

Yost, Frank T.

Cutting

Cutting motion of tool has component in direction of moving...

Orbital motion of cutting blade

83345, 83346, 83503, 835082, 83677, 83699, 493370, 493471, B26D 124

Patent

active

049626841

ABSTRACT:
A cutting device for a board machine is disclosed. The board machine includes at least two parallel shafts. One shaft is mounted by eccentric assemblies which vary the center line of rotation of the shaft. A first cutter head is mounted on that shaft and a mating cutter head is mounted on the other shaft. The first cutter head includes a first cylindrical member having external teeth which mate with a second cylindrical member having internal teeth. The mating cutter head mounts a slotting knife and a cross knife, while the first cutter head mounts an adjustable knife. The eccentric assemblies eccentrically move the shaft to reorientate the first and second cylindrical members to move the adjustable knife relative to the slotting knife to cut or score boards of different thickness while maintaining a desired spacing between the cross knife and an anvil surface defined by the second member.

REFERENCES:
patent: 301905 (1884-07-01), Lytle
patent: 884556 (1908-04-01), Bauer
patent: 2181197 (1939-11-01), Moritz
patent: 2888076 (1959-05-01), Lanstrom
patent: 3302506 (1967-02-01), Turner et al.
patent: 3786706 (1974-01-01), Hyatt et al.
patent: 4215609 (1980-08-01), Coburn et al.
patent: 4572047 (1986-02-01), Punater et al.
patent: 4781668 (1988-11-01), Mowry
patent: 4805502 (1989-02-01), Ishigure

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