Patent ID: 7793945

Claim:
Arrangement for holding a tool fitting ( 1 ), in particular for driven tools, the arrangement comprising: a spindle ( 2 ) with a forward directed surface ( 3 ) and a bore ( 4 ) which intersects the forward directed surface and which, starting from such surface, extends rearwardly in order to receive a shaft ( 5 ) of the tool fitting ( 1 ), as well as with a device ( 6 ) for locking the tool fitting with the spindle ( 2 ), in which an inner ( 7 ) and an outer ( 8 ) locking element are provided, which engage with one another, the locking elements ( 7 , 8 ) being implemented such that they act in the manner of a bayonet coupling, wherein a projecting element ( 9 ) is disposed in a blind stop groove ( 12 ) extending first axially subsequently radially in a circumferential surface ( 11 ) starting from an end face ( 10 ), the projecting element ( 9 ) being held movably in an opening ( 13 ) of the spindle ( 2 ), a securement element ( 14 ) being is provided and acting onto the projecting element ( 9 ), the securement element ( 14 ) comprising a manacle ring ( 15 ) with an oblique ramp face ( 16 ) acting onto the projecting element ( 9 ), and a worm gear ( 18 ) acting between the manacle ring ( 15 ) and the spindle ( 2 ).