Patent ID: 8196502

Claim:
A device ( 1 ) for the rotative scoring of a bending line in printed book products supplied in the form of a flat sheet ( 2 ), including at least one pair ( 11 . 1 or 11 . 2 ) of scoring tools ( 12 , 13 ) having a scoring knife ( 12 ) and an assigned scoring matrix ( 13 ), wherein the scoring tools ( 12 , 13 ) are arranged on a first and a second parallel scoring shaft ( 14 . 1 , 14 . 2 ) driven in opposite directions; and at least one pair ( 30 ) of transport rollers ( 31 , 32 ) that is arranged axially adjacent to the pair of scoring tools ( 11 . 1 or 11 . 2 ), having a first and a second transport roller ( 31 , 32 ) and together clamp and transport the sheet ( 2 ) during running operation; wherein the improvement comprises that the first transport roller ( 31 ) is fixed on for co-rotation with the first scoring shaft ( 14 . 1 ) and the second transport roller ( 32 ) is supported independently of the scoring tools ( 12 , 13 ), said independent support including an axial bore ( 33 ) in the second transport roller that is axially penetrated by the second scoring shaft ( 14 . 2 ) with circumferential clearance around the second scoring shaft during running operation such that the second transport roller freely rotates about the second scoring shaft; whereby the support for the second roller transport roller adjustably offsets the axis of the second transport roller relative to the axis of the second scoring shaft without contact between the second transport roller and the second scoring shaft during running operation.