Sheath Provided With A Corrugated Edge For A Pressing Device

Abstract

A sheath for a pressing device, the sheath having a cylindrical circumferential face having a circumferential face radius and an annular bearing resiliently mounted to at least one axial end of the sheath in a spring elastic manner. The annular bearing has a smaller radius than the circumferential face radius. Additionally, the sheath has a bellows-shaped transition region extending at the at least one axial end of the sheath from the cylindrical circumferential face to the annular bearing.

1 - 21 . (canceled)  
   
   
       22 . A sheath for a pressing device, the sheath comprising: 
 a cylindrical circumferential face having a circumferential face radius;    an annular bearing resiliently mounted to at least one axial end of the sheath in a spring elastic manner, the annular bearing having a smaller radius than the circumferential face radius; and    a bellows-shaped transition region extending at the at least one axial end of the sheath from the cylindrical circumferential face to the annular bearing.    
   
   
       23 . The sheath according to  claim 22 , wherein the pressing device is a paper machine.  
   
   
       24 . The sheath according to  claim 22 , wherein the bellows-shaped transition region is structured in one piece with the sheath circumferential face.  
   
   
       25 . The sheath according to  claim 22 , the pressing device further comprising: 
 a circular end disk mounted axially on the pressing device; and    a support face on the circular end disk forming the annular bearing.    
   
   
       26 . The sheath according to  claim 22 , further comprising individual tabs individually fastenable to the annular bearing, wherein the bellows-shaped transition region merges into the individual tabs.  
   
   
       27 . The sheath according to  claim 22 , further comprising: 
 a bulge formed by the bellows-shaped transition region; and    a filler body arranged in the bulge.    
   
   
       28 . The sheath according to  claim 27 , wherein the filler body is structured in a spring-elastic configuration.  
   
   
       29 . The sheath according to  claim 27 , wherein the filler body is provided in the bulge between the edge region and the annular bearing.  
   
   
       30 . The sheath according to  claim 27 , further comprising a torus halved in a radial direction with regard to a torus center point, wherein the filler body is formed by the torus.  
   
   
       31 . The sheath according to  claim 27 , the pressing device further comprising: 
 an inner region of the pressing device; and    a circular end disk mounted axially on the pressing device,    wherein the filler body seals the inner region of the pressing device, in at least one of an at least partially gastight and an at least partially liquidtight manner, between the sheath and the end disk at the bellows-shaped transition region.    
   
   
       32 . The sheath according to  claim 27 , further comprising a pressurized tube, wherein the filler body is formed by the pressurized tube.  
   
   
       33 . The sheath according to  claim 27 , further comprising a spring-elastic torus body of solid configuration, wherein the filler body is formed by the spring-elastic torus body of solid configuration.  
   
   
       34 . The sheath according to  claim 33 , wherein the filler body is of open-pore configuration.  
   
   
       35 . The sheath according to  claim 33 , wherein the filler body is of closed-pore configuration.  
   
   
       36 . The sheath according to  claim 31 , wherein the inner region is filled with a filler medium at a preselected pressure.  
   
   
       37 . The sheath according to  claim 22 , further comprising a laid fabric layer structured and arranged in the sheath and extending over the sheath circumferential face and over the bellows-shaped transition region to the annular bearing.  
   
   
       38 . The sheath according to  claim 22 , further comprising a laid fabric layer structured and arranged in the sheath and extending over the sheath circumferential face  
   
   
       39 . The sheath according to  claim 38 , further comprising an additional laid fabric layer overlapping the laid fabric layer and extending over the sheath circumferential face and over the bellows-shaped transition region to the annular bearing.  
   
   
       40 . The sheath according to  claim 39 , further comprising an overlapping region, wherein the additional laid fabric layer is spliced onto the laid fabric layer in the overlapping region.  
   
   
       41 . The sheath according to  claim 22 , wherein the sheath circumferential face and the bellows-shaped transition region are composed of a same material.  
   
   
       42 . The sheath according to  claim 22 , wherein the bellows-shaped transition region is one of cast onto and adhesively bonded to the sheath circumferential face.  
   
   
       43 . The sheath according to  claim 22 , wherein a radial compliance of the bellows-shaped transition region and the sheath circumferential face corresponds at most to 90% of a difference between the circumferential face radius and the annular bearing radius.  
   
   
       44 . The sheath according to  claim 22 , wherein the pressing device is a roll.  
   
   
       45 . The sheath according to  claim 22 , wherein the pressing device is a shoe press of a paper machine.  
   
   
       46 . The sheath according to  claim 22 , wherein the sheath at least partially surrounds the pressing device.  
   
   
       47 . The sheath according to  claim 22 , wherein the bellows-shaped transition region is arranged between the circumferential face radius and the annular bearing radius.  
   
   
       48 . A pressing device, comprising: 
 a cylindrical circumferential face having a circumferential face radius;    a sheath having a sheath circumferential face and at least one axial end;    at least one end of the sheath resiliently mounted to an annular bearing in a spring elastic manner, the annular bearing having a smaller radius than the circumferential face radius; and    a bellows-shaped transition region extending at the at least one axial end of the sheath from the sheath circumferential face to the annular bearing.    
   
   
       49 . The pressing device according to  claim 48 , wherein the sheath at least partially surrounds the pressing device.  
   
   
       50 . The pressing device according to  claim 48 , wherein the bellows-shaped transition region is arranged between the sheath circumferential face and the annular bearing.  
   
   
       51 . A method of attaching a sheath to a pressing device, comprising: 
 arranging the sheath having a sheath circumferential face and at least one axial end at least partially around the pressing device having a cylindrical circumferential face having a circumferential face radius;    resiliently mounting at least one end of the sheath to an annular bearing in a spring elastic manner, the annular bearing having a smaller radius than the circumferential face radius; and    forming a bellows-shaped transition region extending at the at least one axial end of the sheath from the sheath circumferential face to the annular bearing.    
   
   
       52 . The method according to  claim 51 , further comprising arranging a filler body in a bulge formed by the bellows-shaped transition region.