Lumbar cushion having gas bag with fixed air pressure

Abstract

The present invention relates to products for daily use, and particularly relates to a lumbar cushion having a gas bag with fixed air pressure, the lumbar cushion comprising a flattened enclosure having a lumen formed inside the enclosure, a gas bag arranged and fixed within the lumen, an inner lumen with fixed air pressure arranged on the gas bag; the enclosure further comprising an upper portion forming a neck for connecting snap-fit connectors, and a lower portion forming a connector for connecting to a seat. A small amount of gas is filled into the gas bag, i.e., the gas bag has a fixed air pressure. When a body of a user rest on the lumbar cushion, the gas in the gas bag will flow within the gas bag at the pressing of the external force, which can ensure the gas flow to the lumbar of the user in all directions and can adjust the amount in every direction automatically so that the gas lumbar cushion can perfectly support the lumbar section of the user. This may consequently conform the user and relieve fatigue to a great extent.

What is claimed is: 
     
         1 . A comfortable type lumbar cushion having a gas bag with fixed air pressure comprising a flattened enclosure having a lumen formed inside the enclosure, a gas bag arranged and fixed within the lumen, an inner lumen with fixed air pressure arranged on the gas bag; the enclosure further comprising an upper portion forming a neck for connecting to snap-fit connectors, and a lower portion forming a connector for connecting to a seat. 
     
     
         2 . The lumbar cushion of  claim 1  wherein both sides of the enclosure having a contour of curved lines or polylines. 
     
     
         3 . The lumbar cushion of  claim 1  wherein the enclosure comprises a front piece and a rear piece, the front piece and the rear piece are connected to one another at the perimeters thereof to form the lumen between the front piece and the rear piece. 
     
     
         4 . The lumbar cushion of  claim 1  further comprising a connecting piece provided on the inner side of the front piece and the rear piece; an upper end of the gas bag is fixedly attached to the connecting piece. 
     
     
         5 . The lumbar cushion of  claim 1  wherein the gas bag is provided in a middle portion of the enclosure. 
     
     
         6 . The lumbar cushion of  claim 1  wherein the connector at the lower portion of the enclosure is a protruding bar. 
     
     
         7 . The lumbar cushion of  claim 1  wherein the front piece of the enclosure can be made from breathable material suitable for the summer, the rear piece can be made from thermal insulating material suitable for winter time; or the from piece can be made from thermal insulating material suitable for winter time, the rear piece can be made from breathable material suitable for summer time; or the front piece and the rear piece can both be made from thermal insulating material suitable for winter time; or the front piece and the rear piece can both be made from breathable material suitable for summer time. 
     
     
         8 . The lumbar cushion of  claim 8  wherein the breathable material suitable for summer time can be sandwiched mesh fabric, three-dimensional breathable mesh fabric, or viscose fiber fabric; the thermal insulating material suitable for winter time can be suede nap, genuine leather, or shearling.