Sheet dispenser

Abstract

A dispensing system 1 and a dispenser 100 for dispensing single sheets 5 from a roll of a continuous web of plastic cushioning material 4, containing transversal lines of perforations 9 defining the single sheets, horizontally mounted on a support 2 and comprising a slotted bar 10 wherein positioning of the plastic material through the slot 16 facilitates the removal of discrete sheets of said material.

1 . A dispensing system ( 1 ) for dispensing single sheets ( 5 ) from a roll of a continuous web of pre-perforated plastic cushioning material ( 4 ), said dispensing system comprising: a device ( 2 ) for holding a horizontal shaft ( 3 ) on which said roll can be rotatably mounted on; and a slotted bar ( 10 ), wherein the length and height of the slot are determined by the width and thickness of the material of the roll that should be dispensed, said slotted bar ( 10 ) being provided at its edges with elongated fastening means ( 6 ,  6   a ) devised to join said side edges of said slotted bar to respective upward hanging positions ( 7 ,  7   a ) in such a way that said slotted bar can swing and can pivot about its longitudinal axis by an angle greater than 0° and less than 180°, wherein the length of said elongated fastening means ( 6 ,  6   a ) is equal to or slightly less than the distance between the hanging positions ( 7 ,  7   a ) and the horizontal shaft ( 3 ).  
   
   
       2 . A dispenser ( 100 ) of single sheets of pre-perforated plastic cushioning material from a roll, said dispenser comprising: a device ( 2 ) for holding a horizontal shaft ( 3 ); a roll of pre-perforated plastic cushioning material ( 4 ) rotatably mounted on said shaft, the free edge ( 8 ) of such a roll being threaded through the suitably sized slot ( 16 ) of a slotted bar ( 10 ) laying on the surface of said roll ( 4 ); said slotted bar being provided at its edges with elongated fastening means ( 6 ,  6   a ), joining the side edges of said slotted bar to respective upward hanging positions ( 7 ,  7   a ) in such a way that said slotted bar can swing and can pivot about its longitudinal axis by an angle greater than 0° and less than 180°, said elongated fastening means ( 6 ,  6   a ) being of a length equal to or slightly less than the distance between the hanging positions ( 7 ,  7   a ) and the horizontal shaft ( 3 ).  
   
   
       3 . The dispenser according to  claim 2  wherein the hanging positions ( 7 ,  7   a ) are set with respect to the horizontal shaft ( 3 ) so that contact between the slotted bar ( 10 ) and the surface of the roll ( 4 ) occurs at an angle of 45°±25° with respect to the vertical diameter of the roll.  
   
   
       4 . A method for dispensing single sheets of pre-perforated plastic cushioning material from a roll, said method comprising: mounting a roll of pre-perforated cushioning material ( 4 ) on a horizontal shaft ( 3 ) held by a holding device ( 2 ) in such a way that the roll can freely rotate about its longitudinal axis; threading the free edge ( 8 ) of the roll downwardly through the suitably sized slot ( 16 ) of a slotted bar ( 10 ), said slotted bar being provided at its side edges with elongated fastening means ( 6 ,  6   a ), joining the side edges of said slotted bar to respective upward hanging positions ( 7 ,  7   a ) in such a way that said slotted bar can swing and can pivot about its longitudinal axis by an angle greater than 0° and less than 180°, said elongated fastening means ( 6 ,  6   a ) being of a length equal to or slightly less than the distance between the hanging positions ( 7 ,  7   a ) and the horizontal shaft ( 3 ); and pulling the web through the slot ( 16 ) until the perforated line ( 9 ) defining a sheet has passed the slot and then pulling it downwardly thus separating the sheet along the perforation line without tearing the web longitudinally.