Device for unwinding a bobbin

In a device for disengaging sheets of leaf material from a belt-shaped carrier, said device having

• a frame having a winding-off reel and a winding-up reel operatively associated therewith,
• a table with co-acting means, connected to said frame, for disengaging said sheets from said carrier, said disengaging means having
• said winding-off reel supporting a coil of said carrier having said sheets held between windings of said coil,
• said winding-up reel supporting an empty portion of said carrier from which said sheets have been disengaged, and
• guide rollers situated such that said carrier is guided while stretched over said table, the improvement comprising:
• a straight guide edge situated a short distance, relative to a length of said guide edge, from a front edge of said table so as to define a gap between said guide edge and said front edge;
• means for holding said winding-off reel with a rotational axis thereof parallel to said guide edge;
• one of said guide rollers being arranged on an opposite side of said guide edge from said winding-off reel, and
• a subframe movable relative to said frame and in which said winding-off reel is receivable, such that said winding-off reel is movable toward and away from said gap.

In a device for disengaging sheets of leaf material from a belt-shaped carrier, said device having

• a frame having a winding-off reel and a winding-up reel operatively associated therewith,
• a table with co-acting means, connected to said frame, for disengaging said sheets from said carrier, said disengaging means having
• said winding-off reel supporting a coil of said carrier, with said sheets being held between windings of said coil,
• said winding-up reel supporting an empty portion of said carrier from which said sheets have been removed, and
• guide rollers situated such that said carrier is guided while stretched over said table, the improvement comprising:
• a straight guide edge situated a short distance, relative to a length of said guide edge, from a front edge of said table so as to define a gap between said guide edge and said front edge,
• means for holding a rotational axis of said winding-off reel parallel to said guide edge;
• one of said guide rollers being arranged on an opposite side of said guide edge from said winding-off reel;
• means for improving disengagement of said sheets from a next winding of said coil during uncovering of said next winding by an outer winding of said coil, said disengagement improving means comprising:
• means for holding said coil adjacent said guide edge at said gap such that said carrier is redirected by said guide edge at a line of uncovering of said outer winding from said next winding in order to insure disengagement of said sheets from said outer and next windings at said guide edge.