Printing blanket with non-extensible backing mountable in a single reel rod lock-up
AssigneeDay International, Inc.
InventorsJames Messer, Brian James, Thomas Smatlak
Life of this patent
Estimating the term…
Abstract
Printing blankets having non-extensible backing plies such as, for example, metalback blankets, are provided which have a construction that is adapted to be mountable onto blanket cylinders having a gap containing a conventional single reel rod lock-up mechanism. The blankets include first and second relief areas positioned such that when the blankets are mounted onto a blanket cylinder, the relief areas substantially align with the point at which the lead and trail ends of the blankets are inserted into a gap in the blanket cylinder to secure the ends in the lock-up mechanism.
Claims11
A printing blanket comprising at least a printable surface layer and a non-extensible backing layer, said printing blanket having lead and trail ends adapted to be inserted into the gap of a printing blanket cylinder;
- said lead end of said blanket including a first relief area positioned inwardly from said lead end and extending substantially across the width of said blanket, said first relief area defined by a gap in the blanket carcass and bounded on either side by blanket walls;
- said lead end of said blanket including a blanket bar extending around said blanket carcass and said non-extensible backing layer;
- said non-extensible backing layer extends beyond said blanket carcass on said trail end of said blanket;
- said blanket including a second relief area positioned inwardly from said trail end and extending substantially across the width of said blanket, said second relief area defined by a gap in the blanket carcass and bounded on either side by blanket walls, said first and second relief areas positioned such that when said blanket is mounted on said blanket cylinder, said relief areas substantially align with the point at which the lead and trail ends of said blanket are inserted into said gap in said blanket cylinder.
In combination, a printing blanket mounted on a blanket cylinder which includes a gap and a single reel rod lock-up mechanism within said gap, said lock-up mechanism including a lead end shelf and a rotatable rod having a recess therein opposite said shelf;
- said printing blanket comprising at least a printable surface layer and a non-extensible backing layer, said printing blanket having lead and trail ends adapted to be inserted into the gap of a printing blanket cylinder, each of said lead and trail ends of said blanket including a blanket bar attached thereto;
- said lead end of said blanket including a first relief area positioned inwardly from said lead end and extending substantially across the width of said blanket, said first relief area defined by a gap in the blanket carcass and bounded on either side by blanket walls;
- said non-extensible backing layer extends beyond said blanket carcass on said trail end of said blanket;
- said blanket including a second relief area positioned inwardly from said trail end and extending substantially across the width of said blanket, said second relief area defined by a gap in the blanket carcass and bounded on either side by blanket walls, wherein respective portions of said blanket carcass which are positioned beyond said first and second relief areas meet in frictional engagement in said gap in said blanket cylinder.
A printing blanket comprising at least a printable surface layer and a non-extensible backing layer, said printing blanket having lead and trail ends adapted to be inserted into the gap of a printing blanket cylinder;
- said lead end of said blanket including a first relief area positioned inwardly from said lead end and extending substantially across the width of said blanket, said first relief area defined by a gap in the blanket carcass and bounded on either side by blanket walls;
- said non-extensible backing layer being coextensive with the end of said blanket carcass on said lead end and extending beyond said blanket carcass on said trail end of said blanket;
- said blanket including a second relief area positioned inwardly from said trail end and extending substantially across the width of said blanket, said second relief area defined by a gap in the blanket carcass and bounded on either side by blanket walls, said first and second relief areas positioned such that when said blanket is mounted on said blanket cylinder, said relief areas substantially align with the point at which the lead and trail ends of said blanket are inserted into said gap in said blanket cylinder.
Dependencies are inferred from the claim text.