Non-rotating bit for cutting tool
AssigneeCaterpillar Paving Products Inc.
InventorsNicholas B. Johnson, Robert Edwin Carr, David Castillo, Jeff Rhode, David Bruno Parzynski, Jr.
Life of this patent
Estimating the term…
Abstract
A cutting bit assembly for attachment to a tool holder of a milling-type machine includes a cutting tip, a cylindrical shank extending from the cutting tip and comprising a rotation-limiting surface, and a spring clip surrounding a body of the shank. The spring clip includes a protrusion configured to interact with the rotation-limiting surface of the shank to limit rotation of the shank relative to the spring clip. The spring clip includes a contracted configuration and an expanded configuration, and in both the contracted configuration and the expanded configuration the protrusion interacts with the rotation-limiting surface.
Claims20
A cutting bit assembly for attachment to a tool holder of a milling-type machine, the cutting bit assembly comprising:
- a cutting tip;
- a cylindrical shank extending from the cutting tip and including a rotation-limiting surface defining a channel extending along a portion of the cylindrical shank, the channel defining a v-shaped groove with the rotation-limiting surface including a concave surface;
- and
- a spring clip that surrounds at least a portion of the cylindrical shank when the cylindrical shank and the spring clip are inserted into the tool holder and comprising an indentation configured to interact with the rotation-limiting surface of the cylindrical shank to limit rotation of the cylindrical shank relative to the spring clip.
A cutting bit system comprising:
- a cutting tip;
- a cylindrical shank extending from the cutting tip and including a rotation-limiting surface defining a channel extending along a portion of the cylindrical shank;
- and
- a spring clip that surrounds at least a portion of the cylindrical shank when the cylindrical shank and spring clip are inserted into a tool holder and comprising an indentation configured to interact with the rotation-limiting surface of the shank to limit rotation of the shank relative to the spring clip.
A method for installing a cutting bit into a tool holder of a milling-type machine, the method comprising:
- inserting a shank of the cutting bit into a mounting bore of the tool holder with a spring clip in a contracted configuration;
- and
- releasing the spring clip from the contracted configuration so that the spring clip exerts a radially outward force against the mounting bore of the tool holder, thereby causing the spring clip to be rotationally locked to the mounting bore,
- wherein the spring clip comprises an indentation configured to interact with a channel including a rotation-limiting surface of the shank to limit rotation of the shank relative to the spring clip and to the tool holder.
Dependencies are inferred from the claim text.