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AssigneeBetek Bergbau- und Hartmetalltechnik Karl-Heinz Simon GmbH & Co. KG
InventorKarl Kammerer
Estimating the term…
A fixture for attaching a round shank chisel to a road milling machine or the like. The round shank chisel has a chisel head and a chisel shank. With a bearing surface the chisel head rests upon a wearing protection disk which in turn rests on and is supported by a chisel holder. The chisel shank is accommodated by a location bore of the chisel holder. This invention prevents dirt from penetrating the area of the location bore of such a fixture and at the same time ensures that the free movability of the round shank chisel is not impaired. Thus, the chisel holder has a circumferential projection or a circumferential depression which extends along the location bore. Also, the wearing protection disk has a circumferential receiving groove or a circumferential shoulder and the projection or the depression of the chisel holder engages with the receiving groove or the depression of the wearing protection disk when the round shank chisel is assembled.
In a fastening for a round shank chisel on a road scraper device, wherein the round shank chisel has a chisel head and a chisel shank, the chisel head rests with a contact surface on a wear-protection disk which rests on a chisel holder and is supported on the chisel holder, and the chisel shank is inserted into a receiver bore of the chisel holder, the improvement comprising:
Dependencies are inferred from the claim text.