Protected spring clip for retaining bits
AssigneeCaterpillar Inc.
InventorsDavid Bruno Parzynski, Jr., Thomas Marshall Congdon
Life of this patent
Estimating the term…
Abstract
An adapter board has an upper moldboard interfacing portion including a rear flat surface, a front surface, and a plurality of retaining spring clip receiving apertures extending from the front surface to the rear flat surface. A lower tool bit attachment portion of the adapter board terminates in a lower adapter board free end defining a bottom surface that defines a plurality of shank receiving bores. Each one of the plurality of shank receiving bores is in communication with one of the plurality of retaining spring clip receiving apertures.
Claims14
A blade assembly comprising:
- an adapter board including an upper moldboard interfacing portion including a rear flat surface, and a front surface;
- a lower tool bit attachment portion, including a lower rear surface and 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;
- and
- the upper moldboard interfacing portion includes a series of retaining spring clip receiving apertures extending from the front surface to the rear flat surface, and the rear flat surface being located upward of the bushing and spaced forward of the lower rear surface so as to contact a tool bit inserted in the bushing to limit rotating thereof.
An adapter board comprising:
- an upper moldboard interfacing portion including a rear flat surface, a front surface, and a plurality of retaining spring clip receiving apertures extending from the front surface to the rear flat surface;
- a lower tool bit attachment portion, including a lower rear surface and a top shelf surface, and the 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 extending upwardly from the bottom surface to the top shelf surface and terminating at a location that is below the rear flat surface of the upper moldboard;
- and
- wherein each one of the plurality of shank receiving bores is in communication with one of the plurality of retaining spring clip receiving apertures.
Dependencies are inferred from the claim text.