BOHRWERKZEUG FÜR GESTEIN

BOHRWERKZEUG FÜR GESTEIN

A drill including a body having mortises (7), and a solid hard metal head (4) having a plurality of bits (3) and secured to the drill body over the end surface (5) of the head (4) and additionally secured to the drill body over portions of side surfaces (6) located in a radially outer region of the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HAUPTMANN, UDO, HOFMANN, KARL-HEINZ, STARKMANN, JOSEF, PROELS, TIM
Format: Patent
Sprache:ger
Schlagworte:
BORING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
TRANSPORTING
TURNING
WORKING CEMENT, CLAY, OR STONE
WORKING STONE OR STONE-LIKE MATERIALS
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Beschreibung
Zusammenfassung:A drill including a body having mortises (7), and a solid hard metal head (4) having a plurality of bits (3) and secured to the drill body over the end surface (5) of the head (4) and additionally secured to the drill body over portions of side surfaces (6) located in a radially outer region of the head (4), extending substantially parallel to a rotational axis (A) of the drill and extending into mortise means (7), with the side surfaces (6) including first surfaces, which are associated with at least some of the bits (3) and are subjected to pressure acting in a rotational direction of the drill during operation of the drill.