Variable lowering stop for cutter knife

Details Variable lowering stop for cutter knife Variable lowering stop for cutter knife

1990-02-12

1991-07-23

Watts, Douglas D.

Cutting

With means to monitor and control operation

Including means to correct the sensed operation

83174, 83529, B23Q 1528, B26D 712

Patent

active

050333437

ABSTRACT:
A cutter head having a reciprocating knife has a base frame movable relative to a support carriage between a raised non-cutting position and a lowered cutting position with the base frame and the support carriage cooperating with one another to limit the movement of the base frame to define raised and lowered positions. A variable lowering stop mechanism is interposed between said base frame and said carriage to adjustably lower the cutting depth of the knife relative to said support carriage in response to a decrease in knife length at its tip resulting from sharpening. The variable lowering stop mechanism may be activated by a controller which counts the number of sharpenings occurring during a cutting operation.

REFERENCES:
patent: 3121364 (1964-02-01), Castle, Jr.
patent: 3183756 (1965-05-01), Dehn
patent: 3318235 (1967-05-01), Hanni
patent: 3541906 (1970-11-01), Sederberg et al.
patent: 4133233 (1979-01-01), Pearl
patent: 4841822 (1989-06-01), Gerber

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