Device to guarantee the tension and access to the reverse face of a stretched canvas

Abstract

The invention relates to a device to guarantee the tension and free access to the reverse face of a stretched canvas ( 3 ) on support means ( 5 a , 5 b ) embodying a lining element ( 1 ) and particularly a wall or ceiling element. Said device is characterized in comprising at least one automatic closure ( 6 ), of the zipper type, which extends along at least a part of one of the dimensions of said wall.

1 . Device intended to guarantee the tension and free access to the reverse face of a canvas ( 3 ) stretched on support means ( 5   a ,  5   b ), and constituting a lining element ( 1 ), and in particular a wall or ceiling element, comprising at least one mechanical closure ( 6 ), of the zipper type, which extends over at least a part of at least one of the dimensions of said wall, characterized in that the canvas ( 3 ) is constituted by an elastic material and in that its dimensions, before being placed under tension, are less than those of the support means ( 5   a ,  5   b ).  
   
   
       2 . Device according to  claim 1 , characterized in that the dimension of the canvas ( 3 ), in the direction in which the closure ( 6 ) extends, is less than that of its support means by a quantity included between 0.5 and 3% and preferably of the order of 2%.  
   
   
       3 . Device according to one of  claim 1 , characterized in that the dimension of the canvas ( 3 ), in the direction perpendicular to that in which the closure ( 6 ) extends, is less than that of its support means by a quantity included between 0.5 and 15% and preferably of the order of 7%.  
   
   
       4 . Device according to  claim 1 , characterized in that the canvas ( 3 ) is constituted by polyvinyl chloride or PVC.  
   
   
       5 . Device according to  claim 1 , characterized in that the element ( 1 ) presents the form of a cylinder and the closure ( 6 ) is disposed along one of the generatrices thereof.  
   
   
       6 . Device according to  claim 5 , characterized in that the element ( 1 ) is constituted by a cylinder with polygonal base.  
   
   
       7 . Device according to one  claim 1 , characterized in that the closure ( 6 ) is fixed on the canvas ( 3 ) by adhesion.  
   
   
       8 . Device according to  claim 1 , characterized in that the closure ( 6 ) is fixed on the canvas ( 3 ) by welding, particularly of high frequency type.  
   
   
       9 . Device according to  claim 1 , characterized in that the closure ( 6 ) is fixed on the canvas ( 3 ) by stitching.  
   
   
       10 . Device according to  claim 2 , characterized in that the dimension of the canvas ( 3 ), in the direction perpendicular to that in which the closure ( 6 ) extends, is less than that of its support means by a quantity included between 0.5 and 15% and preferably of the order of 7%.