Importance

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Abstract

The invention relates to a drill chuck with a chuck body (1) that can be connected to a drill spindle and in which jaws (3) are arranged that engage into the screwthread of a rotatably guided threaded ring (6), furthermore with a locking mechanism for the threaded ring (6) consisting of a coaxial annular array of locking recesses (9) and of at least one locking member (10) that is engaged in the locking position under the force of a locking spring in the locking recesses (9). The drill chuck furthermore comprises a coaxial tightening ring (15) that can rotate between first abutments (16) in a limited manner opposite the threaded ring (6) and comprises a latch (17) forming two latching positions (18) for the tightening ring (15) in the circumferential direction. A locking ring (21) that can rotate with end stops (19) between second abutments (20, 20′) of the tightening ring (15) in a limited manner is provided for adjusting the locking member (10) between the locking position and the release position corresponding to the position of the locking member (10) disengaged from the locking recesses (9), and the second abutment (20′), that is the front one in the direction of rotation (12) corresponding to the opening of the drill chuck, rests in the locking position on the end stop (19). The latch (17) is formed between the locking ring (21) and the threaded ring (6).

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First Claim