Replaceable cover for bars in a printing system

Abstract

A bar for a web transport system in a printing system can include a first set of pins extending outward from an exterior surface of the bar and a replaceable cover wrapped over at least a portion of an exterior surface of the bar. The replaceable cover includes a plurality of openings at one end of the cover with at least a portion of the openings positioned at the locations of respective pins. Fasteners attached at another end of the cover are adapted to removably attach the cover over the bar.

1 . A stationary bar for a web transport system in a printing system, comprising:
 a first set of pins extending outward from an exterior surface of the bar; and   a replaceable cover wrapped over at least a portion of the exterior surface of the bar, wherein the replaceable cover includes a plurality of openings at one end of the cover with openings positioned at locations of respective pins and a plurality of fasteners at another end of the cover each fastener adapted to removably attach the cover over the bar.   
     
     
         2 . The bar as in  claim 1 , wherein each fastener is adapted to removably attach to a respective pin. 
     
     
         3 . The bar as in  claim 2 , wherein the plurality of fasteners comprises springs. 
     
     
         4 . The bar as in  claim 1 , wherein the bar comprises at least one of a turnbar in a turnover module and a bar in an S-wrap device. 
     
     
         5 . The bar as in  claim 1 , wherein the bar comprises a second set of pins extending outward from the exterior surface of the bar and positioned a given distance away from the first set of pins. 
     
     
         6 . The bar as in  claim 1 , wherein the replaceable cover is made of a material having a low coefficient of friction. 
     
     
         7 . The bar as in  claim 1 , wherein the bar further includes a hollow center and a plurality of holes formed through the bar, wherein air or gas is emitted from the plurality of holes. 
     
     
         8 . The bar as in  claim 7 , wherein the replaceable cover further includes a plurality of holes formed through the replaceable cover, wherein locations of the plurality of holes through the replaceable cover correspond to locations of the plurality of holes formed through the bar. 
     
     
         9 . The bar as in  claim 7 , wherein the replaceable cover further includes a plurality of holes formed through the replaceable cover, wherein locations of a portion of the plurality of holes in the replaceable cover correspond to a respective portion of locations of the plurality of holes formed in the bar. 
     
     
         10 . A web transport system in a printing system, comprising:
 a plurality of bars for supporting a moving web;   a first set of pins extending outward from an exterior surface of at least one stationary bar in the plurality of bars; and   
       a replaceable cover wrapped over at least a portion of the exterior surface of the at least one bar, wherein the replaceable cover includes a plurality of openings at one end of the cover with openings positioned at locations of respective pins, and wherein a plurality of fasteners are attached at another end of the cover with each fastener adapted to removably attach the cover over the bar. 
     
     
         11 . The web transport system as in  claim 10 , wherein each fastener is adapted to removably attach to a respective pin. 
     
     
         12 . The web transport system as in  claim 11 , wherein the plurality of fasteners comprises springs. 
     
     
         13 . The web transport system as in  claim 10 , wherein the at least one bar comprises two turnbars disposed in a turnover module. 
     
     
         14 . The web transport system as in  claim 13 , wherein each turnbar includes a second set of pins extending outward from the exterior surfaces of the turnbars and positioned a given distance away from the first set of pins. 
     
     
         15 . The web transport system as in  claim 10 , wherein the at least one bar comprises two bars disposed adjacent to one another in an S-wrap device. 
     
     
         16 . The web transport system as in  claim 10 , wherein the replaceable cover is made of a material having a low coefficient of friction. 
     
     
         17 . The web transport system as in  claim 10 , wherein the at least one bar further includes a hollow center and a plurality of holes formed through the bar, wherein air or gas is emitted from the plurality of holes. 
     
     
         18 . The web transport system as in  claim 17 , wherein the replaceable cover further includes a plurality of holes formed through the replaceable cover, wherein locations of the plurality of holes through the replaceable cover correspond to locations of the plurality of holes formed through the at least one bar. 
     
     
         19 . The web transport system as in  claim 17 , wherein the replaceable cover further includes a plurality of holes formed through the replaceable cover, wherein locations of a portion of the plurality of holes in the replaceable cover correspond to a respective portion of locations of the plurality of holes formed in the at least one bar. 
     
     
         20 . The web transport system as in  claim 10 , wherein the replaceable cover is made of a material that is optimal for a particular type of web.