Inflatable Bed

Abstract

An inflatable bed includes a top sheet, a bottom sheet, an endless surrounding belt, and a plurality of pull belts. The surrounding belt cooperates with the top and bottom sheets to define an inflatable space. The surrounding belt has a bow tie shaped cross-section and includes vertically opposite upper and lower hollow portions. The upper hollow portion has a first surrounding surface confronting the inflatable space and connected to a periphery of the top sheet. The lower hollow portion has a second surrounding surface confronting the inflatable space and connected to a periphery of the bottom sheet. The pull belts are disposed in the inflatable space. Each of the pull belts has opposite top and bottom edges connected respectively to the top and bottom sheets.

1 . An inflatable bed comprising:
 a top sheet;   a bottom sheet;   an endless surrounding belt interconnecting peripheries of said top and bottom sheets, and   cooperating with said top and bottom sheets to define an inflatable space thereamong, said surrounding belt having a bow tie shaped cross-section and including vertically opposite upper and lower hollow portions, said upper hollow portion having a first surrounding surface that confronts said inflatable space and that is connected to the periphery of said top sheet, said lower hollow portion having a second surrounding surface that confronts said inflatable space and that is connected to the periphery of said bottom sheet; and   a plurality of pull belts disposed in said inflatable space, each of said pull belts having opposite top and bottom edges that are connected respectively to said top and bottom sheets.   
     
     
         2 . The inflatable bed as claimed in  claim 1 , wherein:
 each of said upper and lower hollow portions of said surrounding belt is in a form of an endless tube and has a generally trapezoid cross-section;   said upper hollow portion of said surrounding belt has a top wall, a bottom wall disposed under and shorter than said top wall of said upper hollow portion, an inner surrounding wall that interconnects inner peripheries of said top and bottom walls of said upper hollow portion and that is formed with said first surrounding surface, and an outer surrounding wall that interconnects outer peripheries of said top and bottom walls of said upper hollow portion and that is spaced apart from said inner surrounding wall of said upper hollow portion;   said lower hollow portion of said surrounding belt has a top wall coupled to said bottom wall of said upper hollow portion of said surrounding belt, a bottom wall disposed under and wider than said top wall of said lower hollow portion, an inner surrounding wall that interconnects inner peripheries of said top and bottom walls of said lower hollow portion and that is formed with said second surrounding surface, and an outer surrounding wall that interconnects outer peripheries of said top and bottom walls of said lower hollow portion and that is spaced apart from said inner surrounding wall of said lower hollow portion.   
     
     
         3 . The inflatable bed as claimed in  claim 1 , wherein:
 said upper hollow portion of said surrounding belt is in a form of an endless tube, and includes
 a generally V-shaped first plate that has a middle segment, an inner surrounding segment extending from a side of said middle segment and formed with said first surrounding surface, and an outer surrounding segment extending from an opposite side of said middle segment, and 
 a top plate that is coupled to upper ends of said inner and outer surrounding segments of said first plate; and 
   said lower hollow portion of said surrounding belt is in a form of an endless tube, and includes
 a generally inverted V-shaped second plate that has a middle segment coupled to said middle segment of said first plate of said upper hollow portion of said surrounding belt, an inner surrounding segment extending from a side of said middle segment of said second plate and formed with said second surrounding surface, and an outer surrounding segment extending from an opposite side of said middle segment of said second plate, and 
 a bottom plate that is coupled to lower ends of said inner and outer surrounding segments of said second plate.