Patent ID: 7655303

Claim:
A composite tubing capable of being interlaced for padding an article of furniture, said composite tubing comprising: an outer tubing which is prepared by seaming along a lengthwise direction two lateral sides of a lengthwise-extending strip made from a deformable material, said lateral sides being disposed opposite to each other in a transverse direction relative to the lengthwise direction, and being superimposed on each other so as to form a tubular body and a seamed ridge, said tubular body including a force-bearing-side half and a ridge-side half opposite to each other in the transverse direction and cooperating with each other to define a compressible tubular chamber, said seamed ridge extending from said ridge-side half radially and lengthwise to thereby render deformability of said ridge-side half less than that of said force-bearing-side half; and a fiber-based rope disposed to extend lengthwise in said compressible tubular chamber, and being of a dimension such that, when said force-bearing-side half is pressed and deformed, said fiber-based rope is shiftable against said ridge-side half so as to vest said tubular body with an increased strength while preserving the padding effect of said force-bearing-side half.