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US 10,801,322 B2Granted
Cutting device
AssigneesBetek GmbH & Co. KG, Wirtgen GmbH
InventorsThomas Allgaier, Ulrich Krämer, Heiko Friederichs, Thomas Lehnert, Karsten Buhr, Cyrus Barimani
Life of this patent
Estimating the term…
Abstract
The invention relates to a cutting device for an earth working machine, having improved wear protection.
Claims13
A cutting apparatus for an earth working machine, comprising:
- a carrier including:
- a base part;
- a holding extension projecting from the base part, the holding extension having a receptacle defined therein, the holding extension including a supporting segment facing away from the base part;
- and
- a mounting extension arranged on a mounting side of the base part oppositely from the holding extension;
- a cutting insert received at least in part in the receptacle of the holding extension, the cutting insert including a cutting tip made of a super-hard material, the cutting insert including a head at least partially covering the supporting segment;
- and
- a hard-material element formed on the holding extension in a zone of a front region relative to an advance direction of the cutting apparatus, the zone being located between the cutting tip and the base part, the zone extending so as to cover an arc-shaped area around the receptacle extending in front of the cutting insert and in a circumferential direction greater than 180 degrees and less than 360 degrees, the hard-material element extending under the head of the cutting insert throughout the zone of the front region.
5 more elements
Dependencies are inferred from the claim text.