Patent ID: 6616088
Filing Date: 2003-09-09
Classification: B65H

Abstract:
Device for storing and unrolling materials in web form in a bookbinding machine having apparatus for performing a roll-changing operation where a material which has been unwound from a supply roll is connected to the end of a material which is to be unwound from a subsequent roll, each of the rolls having oppositely disposed end faces, the device comprising:a shaft having a pair of sidewalls and front and rear portions, the sidewalls extending longitudinally in an unwinding direction and being adapted for guiding and supporting the supply and subsequent rolls of material via the end faces; a stationary, substantially horizontal floor disposed in the rear portion of the shaft adapted for supporting the subsequent roll until the subsequent roll of material is exchanged for the supply roll of material; at least one movable supporting element adapted for supporting the supply roll of material during an unrolling operation, the supporting element defining a front shaft floor; and at least one supporting roller adapted for supporting the supply roll of material on the movable supporting element during an unrolling operation, the supporting roller forming an end face of the shaft.