Furniture structure having a bamboo-like shape

Abstract

A furniture structure having a bamboo-like shape primarily comprises a tensile-rod, a middle-die, an upper-die, a lower-die. A bamboo-like tube can be formed from a metal-tube, which is extruded and expanded at a suitable position via the separation and close-up of the upper-die and the lower-die. For constructing the furniture structure having a bamboo-like shape as a structure with bulged-flanges, as the hollow-hole of the metal tube is protruded by the middle-die, after upper-die and the lower-die are closed-up, the tensile-rod is moved toward the body of the middle-die along the prop-ups so that the metal-tube located at the molding portion is extruded and expanded by the first bulging-flange at the end of the prop-up, thus the finished metal-tube has a bulged-flange at intervals of a suitable distance.

1 . A furniture structure having a bamboo-like shape, comprising: 
 a metal-tube, a cylindrical object having a hollow-hole;    a tensile-rod having a guide-slant and an elongated bar;    a middle-die having a body and a plurality of prop-ups, the body having a hole in the middle, a first bulging-flange formed at the end of the prop-up, a guide-rail formed between the prop-ups; the tensile-rod protrudes the middle-die through the hole;    an upper die and a lower die, symmetric each other, each having a parting surface, a molding portion, and a contour-shape;    the hollow-hole of the metal-tube is protruded by the middle-die, after upper-die and the lower-die put together, the tensile-rod is moved to the body of the middle-die along the prop-ups so that the metal-tube located at the molding portion is extruded and expanded by the first bulging-flange at the end of the prop-up to tightly close the first bulging-flange and the molding portion of the upper-die and the lower-die, thus the finished metal-tube has a bulged-flange at intervals of a suitable distance and the metal-tube between two bulged-flanges still can be maintained as an elongated tube.    
   
   
       2 . The furniture structure having a bamboo-like shape of  claim 1 , wherein the number of the prop-ups of the middle-die is 2 or more.  
   
   
       3 . The furniture structure having a bamboo-like shape of  claim 1 , wherein the material of the metal-tube is aluminum.