Ground-engaging tool for an excavation bucket
AssigneeCaterpillar SARL
InventorsSchalk Willem Petrus Esterhuyse, Louw Kriel
Life of this patent
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Abstract
The invention relates to a ground-engaging tool which is connected or connectable to a lip on an excavation bucket. The ground-engaging tool includes a tool body which is formed from a material having a hardness of approximately 40 Rockwell C hardness and which defines a contact surface at one end for receiving impacts in use. Extending through a substantial portion of the tool body from the contact surface is a hardened core formed from a material having a hardness which is at least 20% greater than the hardness of the material of the tool body for transferring impacts through the tool body.
Claims10
A ground-engaging tool for an excavation bucket, the ground-engaging tool comprising:
- an outer wear element in the form of a tool body formed from a material having a hardness greater than or equal to 35 Rockwell C hardness, the tool body defining a contact surface at one end for receiving impacts, a longitudinal axis extending rearwardly from the contact surface, and at least one operatively upper surface;
- and
- an inner wear element in the form of a hardened wear-retarding core which extends rearwardly from the contact surface or a region approximate the contact surface for transferring impacts through the tool body, the hardened core being formed from a material having a hardness which is at least 20% greater than the hardness of the material of the tool body and defining a longitudinal axis which extends substantially parallel to the longitudinal axis of the tool body and which lies between the at least one operatively upper surface and the longitudinal axis of the tool body.
Dependencies are inferred from the claim text.