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US 11,926,989 B2Granted
Adapter board with splined bushing
AssigneeCaterpillar Inc.
InventorsDavid Bruno Parzynski, Jr., Thomas Marshall Congdon, Tobias James Toennies
Life of this patent
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Abstract
A blade assembly includes an adapter board including a lower tool bit attachment portion, terminating in a lower adapter board free end, the lower adapter board free end defining a bottom surface defining a plurality of shank receiving bores. A plurality of bushings are disposed in a corresponding one of the plurality of shank receiving bores.
Claims20
A blade assembly comprising:
- an adapter board including a lower tool bit attachment portion, terminating in a lower adapter board free end,
- the lower adapter board free end defining a bottom surface defining a plurality of shank receiving bores;
- and
- a plurality of bushings,
- wherein each one of the plurality of bushings is disposed in a corresponding one of the plurality of shank receiving bores,
- wherein the plurality of shank receiving bores includes counterbore portions, and
- wherein each of the plurality of bushings is disposed in one of the counterbore portions,
- each of the counterbore portions defining a counterbore diameter,
- each of the plurality of shank receiving bores further including a reduced diameter portion defining a reduced diameter that is less than the counterbore diameter, and
- the reduced diameter portion extending from the counterbore portion and including a plurality of axially extending splines.
7 more elements
A blade assembly comprising:
- a plurality of shank receiving bores;
- a plurality of bushings,
- wherein a bushing, of the plurality of bushings, is pressed into a shank receiving bore of the plurality of shank receiving bores,
- wherein the plurality of shank receiving bores includes counterbore portions,
- wherein each of the plurality of bushings is disposed in one of the counterbore portions,
- each of the counterbore portions defining a counterbore diameter,
- each of the plurality of shank receiving further including a reduced diameter portion defining a reduced diameter that is less than the counterbore diameter, and
- the reduced diameter portion extending from the counterbore portion and
- including a plurality of axially extending splines;
- and
- a plurality of tool bits,
- wherein a tool bit, of the plurality of tool bits, is configured to mate with the bushing.
9 more elements
Dependencies are inferred from the claim text.