Cutter head blade clamp
AssigneeMisenheimer Saw & Tool, Inc.
InventorsKevin L. Misenheimer, Anthony W. Johnson, Amir R Rashidi
Life of this patent
Estimating the term…
Abstract
A cutter head with at least one insert clamp. Each insert clamp includes a wedge member fastened to the cutter head. The cutter head includes an insert slot, a clamping slot, and a threaded aperture. The wedge member, in one embodiment, is wedge shaped and includes a thru-opening. A fastener engages the threaded aperture in the cutter head and passes through the thru-opening in the clamping member. A cutter insert fits into the insert slot in the cutter head, and the wedge member secures the cutting insert against a surface of the cutter head.
Claims15
An apparatus for securing an insert to a cutter head, said apparatus comprising:
- a cutter head having an insert slot for receiving an insert, said insert slot having a planar face substantially parallel to an axis of rotation of said cutter head, said insert slot having a tongue adapted to engage a slot in the insert, a clamping slot oriented longitudinally in said cutter head, said clamping slot adjacent said insert slot such that a surface of the insert positioned in said insert slot forms a side surface of said clamping slot, said cutter head having a threaded aperture formed in a bottom surface of said clamping slot;
- a clamping member having a threaded thru-opening with a thread cut in an opposite direction as a thread in said threaded aperture in said cutter head, said clamping member adapted to wedge the insert in said clamping slot;
- and
- a fastener adapted to engage said threaded aperture in said cutter head and said threaded thru-opening in said clamping member whereby said fastener draws said clamping member toward said cutter head when rotated in a first direction and clamping the insert to said cutter head.
An apparatus for securing an insert to a cutter head, said apparatus comprising:
- a cutter head having an insert slot for receiving an insert, said insert slot having a tongue adapted to engage a slot in the insert, said cutter head including a clamping slot oriented longitudinally in said cutter head, said clamping slot adjacent said insert slot such that a surface of the insert positioned in said insert slot forms a side surface of said clamping slot, said cutter head having a threaded aperture formed in a bottom surface of said clamping slot;
- a clamping member having a thru-opening, said clamping member adapted to wedge the insert in said clamping slot;
- and
- a fastener engaging said threaded aperture in said cutter head, said fastener passing through said thru-opening in said clamping member, whereby said fastener draws said clamping member toward said cutter head when rotated in a first direction and clamps the insert to said cutter head.
An insert for cutting a material by rotating with a rotary tool, said insert comprising:
- a metal blank having a first major surface substantially parallel to a second major surface, said first major surface adapted to engage a clamping member, said second major surface adapted to engage a cutter head surface whereby said metal blank is wedged between said clamping member and said cutter head surface, said metal blank including:
- a groove in said first major surface adapted to receive a tongue protruding into an insert slot in a cutter head, said insert slot oriented substantially parallel to an axis of rotation of said cutter head, and
- a bevel on a first corner of said metal blank, said bevel intersecting said second major surface at a first end of said metal blank proximate said groove.
Dependencies are inferred from the claim text.