Patent ID: 7789357

Claim:
A releasable, rotationally fixed, mechanical connection between a support socket part ( 1 ) and a connecting part ( 2 ) of an apparatus support device, one of said parts ( 1 ) including a receiver neck ( 16 ) and the other part ( 2 ) including an insertion element ( 21 ) for accommodation in the receiver neck ( 16 ), said parts ( 1 , 2 ) including fixing means ( 17 , 23 ) for fixedly joining the two parts ( 1 , 2 ) by relative axial movement between the insertion element ( 21 ) and the receiver neck ( 16 ), and an intermediate wedge member ( 24 ) disposed between the insertion element ( 21 ) and the receiver neck ( 16 ) and fixedly connected to the insertion element ( 21 ), said intermediate wedge member ( 24 ) having polygonal outer surface areas in engagement with cooperating polygonal inner surface areas of said receiver neck ( 16 ), said surface areas of at least one cooperating pair of surfaces being inclined in the insert direction so as to form a wedge structure providing for radial and axial interlocking of the surfaces when the intermediate wedge member ( 24 ) is axially pressed into the receiver neck ( 16 ), and a collar ( 23 ) mounted on the connecting part ( 2 ) for engaging the receiver neck ( 16 ) and axially pressing the wedge member ( 24 ) into the receiver neck ( 16 ).