Patent ID: 7992511

Claim:
An inflatable floor provided in a bottom of an inflatable boat, comprising: a first inflatable floor layer having a horizontally-planar cross section, wherein the first inflatable floor layer comprises: upper and lower walls bonded with each other along edges to define an inflatable air chamber between the upper and lower walls, and a plurality of links formed on edges thereof at predetermined intervals; a second inflatable floor layer provided under the first inflatable floor layer, wherein the second inflatable floor layer comprises: a plurality of inner links formed on an upper portion thereof, the inner links corresponding to the links of the first inflatable floor layer, upper and lower walls bonded with each other along edges thereof to define an inflatable air chamber between the upper and lower walls, and a plurality of outer links formed on edges thereof at predetermined intervals, wherein the second inflatable floor layer is shaped such that a concave space is formed between the first and second inflatable floor layers; a third inflatable floor layer underlying the second inflatable floor layer, wherein the third inflatable floor layer comprises: upper and lower walls bonded with each other along edges to define an inflatable air chamber between the upper and lower walls, and a plurality of links formed along edges thereof at predetermined intervals, the links corresponding to outer links of the second inflatable floor layer; and a plurality of ropes binding the first and second inflatable floor layers by passing through the links of the first inflatable floor layer and the inner links of the second inflatable floor layer and binding the second and third inflatable floor layers by passing through the outer links of the second inflatable floor layer and the links of the third inflatable floor layer, wherein the inflatable floor forms a floor of the boat when filled with air.