Patent ID: 9694428
Date: 2017-07-04
CPC Classifications: B23B,B25F,Y10T

Claim:
1. A tool attachment for fastening to a fastening interface of a hand-held machine tool, comprising: a locking unit which in an unlocked state makes it possible for the tool attachment to be placed on the fastening interface of the hand-held machine tool and in a locked state makes it possible for the tool attachment to be locked to the fastening interface of the hand-held machine tool for operation, the locking unit having a rotatable locking body, and a first rotational position of the locking body being associated with the unlocked state and a second rotational position of the locking body being associated with the locked state, wherein the locking unit has a locking member which is configured to prevent rotation of the locking body from the second rotational position into the first rotational position in the locked state, wherein the locking unit has an actuating element which is configured to make possible a rotation of the locking body from the first into the second rotational position, wherein the actuating element further comprises a blocking member which is configured to block the actuating element in a blocking position at the locking body in the locked state, in which blocking position the actuating element urges the locking member at least in portions toward the fastening interface of the hand-held machine tool, wherein the blocking member is of a resilient configuration at least in regions and has a blocking portion which in the blocking position may be releasably fixed in a fixing member provided on the locking body.