Patent ID: 8002051

Claim:
Connection device for forming a fluid supply to a rotatably driven tool ( 50 ), comprising: a rotary feedthrough ( 20 ) having a stator ( 24 ) and a rotor ( 22 ), wherein: the stator ( 24 ) has at least one first line connection ( 26 ) for a fluid, said first line connection being stationary with respect to a surrounding environment, the rotor ( 22 ) is connectable to the tool ( 50 ), is supported in a rotating manner relative to the stator ( 24 ), and has at least one second line connection ( 28 ), which is stationary with respect to the tool ( 50 ), and a torque support ( 40 ) which is connected in a rotationally fixed manner to the stator ( 24 ) and has at least one contact element ( 42 ), wherein: the at least one contact element ( 42 ) is displaceable between a retracted position and a protruding position, the at least one contact element ( 42 ) when in the protruding position being extended as compared to the retracted position for the purpose of torque support.