Rotary cutter head
AssigneeGreat Lakes Carbide Tool Manufacturing, Inc.
InventorsRuss Martin, Ray Martin, Mike McMahon
Life of this patent
Estimating the term…
Abstract
A rotary cutter head includes integral clamping members for releasably securing cutting blades in recesses formed in the cutter head. Each clamping member is formed with a free end portion which defines one side of the recess. An end of the clamping member located oppositely of the free end portion is integrally connected to the cutter head and defines a resilient hinge portion. The free end portion is resiliently biased by the integral hinge portion to a position which allows the blade to be slidably received in the recess. Threaded fasteners are operable to cause the free end portion to pivot about the hinge portion and to drive the free end portion toward an oppositely located side of the recess so as to clamp the blade in the recess.
Claims12
A rotary cutter head for holding a cutting blade, said cutter head comprising a body having a first opening for receiving the blade, the first opening comprising a slot formed between a fixed surface of the body and a movable surface of a clamp, said clamp being integrally formed with said body and being defined by a second opening intersecting the first opening and defining a resilient hinge joining the clamp to the body, adjustment means for urging the clamp toward the body about the hinge and being adjustable to close the hinge and thereby decrease the size of said first opening when clamped, and to allow the hinge to open said first opening when unclamped, said first opening being sized to slidably receive said blade when said adjustment means is unclamped, said blade being clamped in said first opening when said adjustment means is clamped.
A rotary cutter head for releasably holding a cutting blade, said cutter head being adapted to be rotated about a predetermined axis, said cutter head comprising a body portion having a generally circumferentially facing blade slot for slidably receiving a cutting blade, the blade slot being formed between a relatively fixed surface of the body and relatively deflectable surface of a clamp, the clamp being an integral part of the body defined by a thin hinged slot intersecting the blade slot and defining a resilient hinge for movement of the clamp toward or away from the body, the clamp having at least one opening aligned with an associated locking opening in the body, a fastener in the openings adapted to draw the clamp to the body about the hinge to clamp the blade in the blade slot, releasing of the fastener serving to allow the hinge to deflect sufficiently to allow slidable movement of the blade in the blade slot for adjustment thereof, said hinge having sufficient resilience to allow the blade to be slidably removed from the blade slot for replacement without removing the fastener from the locking opening.
Dependencies are inferred from the claim text.