Pneumatic Cushion

Abstract

A pneumatic cushion for use as a sitting, lying and reclining cushion. The cushion includes a casing made from limited-extensibility material. The casing includes a plurality of webs made from limited-extensibility material, the plurality of webs are adapted to divide a cross-section of the pneumatic cushion into a plurality of chambers and positively connect opposite sides of the casing to each other thereby limiting the cushion's maximum spread at web level. A plurality of gas-tight bladders capable of being pressurized with a pressure fluid are inserted in each of the plurality of chambers created by the plurality of webs and the casing.

1 . A pneumatic cushion for use as a sitting, lying and reclining cushion, comprising: 
 a casing made from limited-extensibility material;    a plurality of webs within the casing and made from limited-extensibility material, the plurality of webs are adapted to divide a cross-section of the pneumatic cushion into a plurality of chambers and positively connect opposite sides of the casing to each other, thereby limiting the cushion's maximum spread at web level; and    a plurality of gas-tight bladders capable of being pressurized with a pressure fluid are inserted in each of the plurality of chambers created by the plurality of webs and the casing.    
   
   
       2 . The pneumatic cushion according to  claim 1 , wherein the plurality of bladders are connected to each other by means of openings or lines and are subject to the same pressure.  
   
   
       3 . The pneumatic cushion according to  claim 1 , wherein each bladder of the plurality of bladders or each network of communicating bladders is fitted with at least one valve subjecting the plurality of bladders to be pressurized at different pressures.  
   
   
       4 . The pneumatic cushion according to  claim 1 , wherein the plurality of bladders are made from plastic tubes heat-sealed at both ends and provided with openings or lines.  
   
   
       5 . The pneumatic cushion according to  claim 1 , wherein at least one bladder of the plurality of bladders is centrally positioned and only adjoins the plurality of webs but not the casing in cross-section.  
   
   
       6 . The pneumatic cushion according to  claim 1 , wherein the casing is made from textile, limited-extensibility material.  
   
   
       7 . The pneumatic cushion according  claim 1 , wherein the plurality of webs are made from textile, limited-extensibility material.