Foldable device capable of being used as chair or desk

Abstract

The foldable device is used as a chair or a desk. The device has an upper plate and a lower plate. A supporting cloth is overlapped between the upper plate and the lower plate; the supporting cloth being flexible. The structure is divided into three parts, while the supporting cloth is not cut so that the whole structure is connected by the cloth. The foldable chair and desk combined device can be folded by folding from the cutting portions of the three parts. Furthermore, connecting sheets are formed on two supporting surfaces of the three parts, by connecting the connecting sheets, the foldable chair and desk combined device can be retained rigidly for bearing a heavy object.

1 . A foldable device capable of being used as a chair or a desk; comprising 
 an upper plate, a center portion of the upper plate having 
 a first upper notch;  
 each of two sides of the first notch being formed with a second upper notch;  
   a lower plate; a center portion of the lower plate having 
 a second lower notch which is orientated opposite to and overlapped to the first upper notch of the upper plate;  
 each of the two sides of the second lower notch having a second lower notch which is overlapped to one of two first upper notches;  
   a supporting cloth overlapped between the upper plate and the lower plate; the supporting cloth being flexible;    wherein by the two second upper notched which are overlapped with the two second lower notches, the foldable device is divided into two supporting surfaces at two sides and one bearing surface between the two supporting surfaces;    wherein each of two supporting surfaces has an opening; each opening is installed with a first connecting sheet; an outer edge of each first connecting sheet has two connecting portions which are pivotally installed to the respective connecting sheet; these connecting portions are combinable by screws so as to connect the two connecting sheets; and a round rod serves to connect two connecting portions at one side with the other two connecting portions.    
   
   
       2 . The foldable device capable of being used as a chair or a desk as claimed in  claim 1 , wherein the first upper notch and the first lower notch have W shapes and the second upper lower notches and the second lower notches have V shapes.  
   
   
       3 . The foldable device capable of being used as a chair or a desk as claimed in  claim 1 , wherein one side of the first connecting sheet is connected to the supporting surface; a connection of the connecting sheet and the supporting surface have V shape, while the supporting cloth is remained without cutting so that the connecting sheets are pivotally rotatable with respect to the supporting surface; and the connections of the connecting sheets and the supporting surfaces are formed as pivotal portions.  
   
   
       4 . The foldable device capable of being used as a chair or a desk as claimed in  claim 1 , wherein one side of the opening is formed with a protruding surface; a V-shape buckle is formed in the protruding surface.  
   
   
       5 . The foldable device capable of being used as a chair or a desk as claimed in  claim 1 , wherein two sides of bearing surface are formed with respective via holes.  
   
   
       6 . The foldable device capable of being used as a chair or a desk as claimed in  claim 1 , wherein a center of each first connecting sheet is formed with a hole for reducing the weight.  
   
   
       7 . The foldable device capable of being used as a chair or a desk as claimed in  claim 1 , wherein the flexible cloth is one of demin or canvas.  
   
   
       8 . The foldable device capable of being used as a chair or a desk as claimed in  claim 1 , further comprising a second opening in each supporting surface; each second opening being installed with a second connecting sheet; the structure of the second connecting sheet is identical to the first connecting sheet.  
   
   
       9 . The foldable device capable of being used as a chair or a desk as claimed in  claim 8 , wherein the first upper notch and the first lower notch have W shapes and the second upper lower notches and the second lower notches have V shape.  
   
   
       10 . The foldable device capable of being used as a chair or a desk as claimed in  claim 8 , wherein one side of the second connecting sheet is connected to the supporting surface; a connection of the second connecting sheet and the supporting surface have V shape, while the supporting cloth is remained without cutting so that the connecting sheets are pivotally rotatable with respect to the supporting surface; and the connections of the second connecting sheets and the supporting surfaces are formed as pivotal portions.  
   
   
       11 . The foldable device capable of being used as a chair or a desk as claimed in  claim 8 , wherein one side of the opening is formed with a protruding surface; a V-shape buckle is formed in the protruding surface.  
   
   
       12 . The foldable device capable of being used as a chair or a desk as claimed in  claim 8 , wherein a center of each of the first and second connecting sheet is formed with a hole for reducing the weight of the connecting sheet.