Patent ID: 7480971

Claim:
An apparatus for the attachment to a pre-holed sheet metal part ( 113 ) of a fastener element ( 112 ) comprising a head part ( 114 ) and a tubular rivet section ( 116 ) which is disposed concentric to an axis of symmetry ( 118 ) of the fastener element ( 112 ) or of a fastener section ( 120 ) of the fastener element and merges into the head part ( 114 ) via a contact surface ( 122 ) extending in a radial direction, wherein the rivet section ( 116 ) can be passed through the hole ( 124 ) in the sheet metal part and the rivet section can be beaded over, whereby the sheet metal part can be clamped in the region of the hole between the contact surface ( 122 ) and the beaded over rivet section ( 116 ′), wherein the apparatus is provided with a first tool having a cutout ( 126 ) for the reception of the head part ( 114 ) of the fastener element ( 112 ), wherein a second tool ( 130 ) is provided having a die button shape for the progressive beading over of the rivet section and can be brought into a position coaxial to the axis of symmetry ( 118 ) of the fastener element and wherein a third tool ( 160 ) is provided which is inclined to the axis of symmetry and can be rotated about the axis of symmetry which can be pressed onto an end face of the second tool ( 130 ) remote from the die button shape, with a device being provided which permits a relative axial feed movement ( 136 ) between the first tool ( 128 ) which receives the head part and the third tool ( 160 ) which co-moves the second tool ( 130 ).