UNIVERSAL BED INSERT, BUILT BY AIR MATTRESS, COMBINED WITH AIRTIGHT VALVES, AND METHOD FOR PRODUCING THEREOF

摘要

The subject of the invention is a universal bed insert, built by air mattress, combined with airtight valves and method for producing thereof. The insert, produced with the application of said method makes it possible, that the sponge, the airtight covering of the sponge, and the air within the insert result in a higher level of convenience when using the insert. The insert according to the invention is built by an air mattress filled with sponge of open cell structure, as well as valves built into the air mattress. The characteristic of the insert is, that in the air mattress (2) sponge (3) of open cell structure, low body-density and low compressive stress is used, where the value of the body-density is preferably 10-23 kg/m3 and the value of compressive stress is preferably 1.0-2.5 kPa. the material of the sponge (3) used is polyurethane, or silicone or rubber foam. During the method according to the invention sponge of open cell structure is provided with airtight covering, and airtight valves are placed in the said covering. During the method regulating valve (4) and check valve (5) are placed into the sponge (3) cut to size, said sponge (3) is placed into the air mattress (2) cut to size, and the openings of the air mattress (2) are closed airtight by edge-closing or by overlapping, with plastic welding, or using adhesives, then after having checked the airtight, compact closing, the airtight covering of the air mattress (2) is laminated onto all surfaces of the sponge (3) so ensuring the cooperation of the sponge (3) and the air mattress (2), then the airtight covering of the air mattress (2) is welded to the bodies of the regulating valve (4) as well as to the check valve (5), so ensuring the airtight closing on this point as well, then the airtight covering of the air mattress (2) is cut out at the openings of the regulating valve (4) and the check valve (5), making so free the openings of the valves (4,5), so ensuring the proper use of the valves, and finally the ready insert (1) is provided with decorating upholstery (7).