Circular-shank tool comprising a tool holder
AssigneeBetek Bergbau- und Hartmetalltechnik Karl-Heinz Simon GmbH & Co. KG
InventorKarl Kammerer
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Abstract
A circular-shank tool including a tool holder for improving the centering of the shank of the circular-shank tool in the locking sleeve by a configuration of the retaining elements and to improve an ability of the shank to rotate in the sleeve. To achieve this, the retaining elements are distributed between two stamped edges that lie transversely with respect to a longitudinal axis of the locking sleeve and are stamped inwards or indented, the stamped edges extend over part of the circumference of the locking sleeve and are interspaced at a distance that corresponds to the width of the peripheral groove in the shank of the circular-shank tool and the retaining elements form a coaxial concave centering section facing the convex groove base of the peripheral groove.
Claims18
A round shank chisel (30) with a clamping sleeve (10), the round shank chisel (30) is rotatably maintained in the clamping sleeve (10), the clamping sleeve (10) has inwardly punched and/or pressed in holding elements (16, 17, 18) distributed over a circumference of the clamping sleeve (10) and engage a circumferential groove (39) cut into a shank (31) of the round shank chisel (30), the clamping sleeve (10) is fixed in place in an axial direction on the shank (31) of the round shank chisel (30), the clamping sleeve comprising:
- the holding elements (16, 17, 18) divided between two punched edges (20, 21) oriented transversely with respect to a longitudinal axis (19) of the clamping sleeve (10) and are punched and/or pressed inward, and
- the punched edges (20, 21) extending over a portion of the circumference of the clamping sleeve (10) and having a distance from each other which corresponds to a width of a circumferential groove (39) in the shank (31) of the round shank chisel (30).
Dependencies are inferred from the claim text.