Drill chuck

Abstract

The invention relates to a drill chuck with means for connecting a chuck body (2) to a drive spindle, with a clamping cone (4), which is rotatable coaxially in relation to the chuck body (2), and with a jaw holder (5), in which clamping jaws (7) are guided in guiding slots (6), wherein said clamping jaws are guided in a radially adjustable manner on a drive element (8) and can be adjusted for clamping and releasing by a relative rotation between the chuck body (2) and the clamping cone (4). The drive element (8) engages with a drive element thread (9) in a body thread (10) of the chuck body (2) that is formed coaxially in relation to the chuck axis, and formed on the chuck body (2) are helical teeth (11), which are coaxial in relation to the chuck axis and in which there engages an externally accessible worm (13), which is mounted in the connecting means, has a coupling element (12) and a worm axis oriented perpendicularly in relation to the chuck axis and offset by the sum of the radii of the chuck body (2) and the worm (13). The coupling element is formed by a Torx socket (14) formed in the externally accessible end face (15) of the worm (13).

Dependencies are inferred from the claim text.