| 摘要 |
An adjustable piece of furniture comprising three basic structural components adapted to be joined to each other for providing the basic frame structure of the piece of furniture. The three basic components are as follows: (a) an elbow-joint, (b) a T-joint and (c) a piece of tubing. The piece of furniture comprises two U-shaped components arranged parallel to each other which are joined by means of three pieces of tubing, two of said pieces of tubing joining respectively the ends of the legs of the U-shaped components to each other, whereas the third piece of tubing joins the base members of the two U-shaped components to each other substantially at their midpoints. The legs of each one of the U-shaped components are joined to the base member by elbows. The base member, in turn, comprises a T-joint at substantially its midpoint which is joined to the elbows at opposite ends of the base member by pieces of tubing of suitable length. The T-joint in each base member has a leg extending therefrom which is joined to the leg of the other T-joint by means of a piece of tubing. The piece of tubing joining the legs of the T-joints in each base member of the U-shaped components serves as a support for a flexible supporting surface, whereas one of the pieces of tubings joining opposite ends of legs of the U-shaped components serves as the other support for the flexible support member.
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