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US 2002/0053473 A1Published application
Head for a rock drill
AssigneeHilti Aktiengesellschaft
InventorAnton Knoller
Life of this patent
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Abstract
A rock drill head including a radially extending groove (2a) formed in a head body, a recess (5) formed inside the groove (2a); and at least two, substantially plate-shaped, hard-material inserts located in the groove (2a) and having each a radially extending, segment (4a, 4b) engaging in the recess (5).
Claims9
A rock drill head, comprising radially extending groove means (2a) formed in a head body;
- a recess (5) formed inside the groove means (2a);
- and at least two, substantially plate-shaped, hard-material inserts (3a, 3b) located in the groove means (2a) and having each a radially extending segment (4a, 4b) engaging in the recess (5).
Dependencies are inferred from the claim text.