Retention system for ripper tips
AssigneeCaterpillar Inc.
InventorNathan R. Bjerke
Life of this patent
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Abstract
A work tool or a wear member includes a working portion or a wear portion, a hollow portion that further defines a lock receiving aperture defining an axis of rotation, a radial direction, and a circumferential direction. The axis of rotation is transverse to the direction of assembly of work tool or wear member as the member is slid over a nose portion of a tool adaptor or the like. The axis of rotation is spaced away from the direction the pin receiving thru-hole extends a predetermined distance measured along the direction of assembly.
Claims6
A ripper shank and ripper tip subassembly for attaching ripper tips to a machine, the subassembly comprising:
- a ripper shank including a top ripper assembly attachment portion, and a bottom ripper tip retention portion including a nose portion defining a pin receiving aperture;
- a ripper tip disposed on the nose portion via a nose portion receiving cavity and defining a pin receiving thru-hole and a lock receiving aperture;
- a pin disposed in the pin receiving thru-hole and the pin receiving aperture, the pin having first and second ends, the first end including a peripheral surface defining a notch;
- and
- a lock arranged in the lock receiving aperture and including a locking portion defining an outer peripheral surface and a wing projecting from the outer peripheral surface and configured to fit within the notch of the pin.
Dependencies are inferred from the claim text.