Chucking device for a dental tool
AssigneeDentalwerk Burmoos Gesellschaft m.b.H.
InventorsGunter Teufelberger, Rudolf Schwaiger
Life of this patent
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Abstract
A chucking device for a dental tool in a dental handpiece or angle head includes a clamping sleeve with resilient tongues. The resilient tongues of the clamping sleeve are arranged at a distance from each of the two ends of the clamping sleeve. On the side on which an actuating member for the resilient tongues is provided, the internal width of the clamping sleeve is greater than the external diameter of the tools to be used. The actuating member for the resilient tongues is an essentially tubular member whose external diameter corresponds to the internal width of the clamping sleeve and whose internal diameter corresponds to the external diameter of the tools to be used.
Claims8
A chucking device for a dental tool in a dental handpiece or angle head, the dental tool including a shaft having an external diameter, the chucking device comprising a clamping sleeve having end faces and an axis, the clamping sleeve further having slots forming at least one resilient tongue, the at least one resilient tongue being located spaced from the end faces of the clamping sleeve, an essentially tubular actuating member being received in a portion of the clamping sleeve for moving the at least one resilient tongue between an initial position for clamping the tool shaft and a radially outwardly bent portion for releasing the tool shaft, the portion of the clamping sleeve having an internal width and the actuating member having an internal diameter and an external diameter, wherein the width of the portion of the clamping sleeve is greater than the external diameter of the tool shaft, and wherein the external diameter of the actuating member corresponds to the internal width of the portion of the clamping sleeve and the internal diameter of the actuating member corresponds to the external diameter of the tool shaft.
Dependencies are inferred from the claim text.