Patent ID: 7178800

Claim:
A device for establishing an imbricated stream of flat articles ( 4 ), in particular of printed products such as newspapers, magazines or brochures, from a supplied imbricated stream, or from a stream of imbricated stacks, or from a stack of the articles ( 4 ), the device comprising: a conveying surface ( 3 ) suitable for driving the articles ( 4 ) in a conveying direction (F), a stopping means ( 2 ) facing towards the conveying surface ( 3 ) and defining together with the conveying surface ( 3 ) a passage gap for the articles ( 4 ), a dancing roller ( 1 ) being arranged freely rotating downstream of the stopping means ( 2 ) and being biased towards the conveying surface ( 3 ), wherein the dancing roller ( 1 ) and the stopping means ( 2 ) are coupled to be movable together towards and away from the conveying surface ( 3 ) such that a width of the passage gap between the stopping means ( 2 ) and the conveying surface ( 3 ) is controlled by a displacement of the dancing roller ( 1 ) caused by the imbricated stream being conveyed, by the conveying surface, beneath the dancing roller ( 1 ) and contacting the dancing roller ( 1 ), wherein a change in the width of the passage gap is equal to the displacement of the dancing roller ( 1 ).