Chair

Abstract

A chair includes a seat, a back, and a headrest; the back has several adjustment members thereon; a supporting frame is connected to the adjustment members in such a way as to be separable from the back; therefore, position and angle of the supporting frame can be adjusted by means of replacing the adjustment members with other ones that have different dimensions from the original ones; people are allowed to select and use another supporting frame having different shape and size from the original one according to their needs and situations; the seat and the headrest have the same structure as the back.

1 . A chair, comprising 
 a seat; and    a back; the back having a plurality of adjustment members thereon; a supporting frame being connected to the adjustment members in such a way as to be separable from the back;    whereby position and angle of the supporting frame will change when the adjustment members are replaced with other ones that have different dimensions from them.    
   
   
       2 . The chair as claimed in  claim 1 , wherein the adjustment members are spaced apart near to a loop-shaped edge of the back.  
   
   
       3 . The chair as claimed in  claim 1 , wherein the adjustment members and the back are formed together such that the adjustment members can't be separated from the back.  
   
   
       4 . The chair as claimed in  claim 1 , wherein the adjustment members and the supporting frame are formed together such that the adjustment members can't be separated from the supporting frame.  
   
   
       5 . The chair as claimed in  claim 1 , wherein each of the adjustment members has a through hole, and the back and the supporting frame each have screw holes thereon; threaded connecting elements being passed through the screw holes and the through holes to secure the supporting frame in position.  
   
   
       6 . The chair as claimed in  claim 1 , wherein the supporting frame has a piece of cloth secured thereon.  
   
   
       7 . A chair, comprising 
 a back; and    a seat; the seat having a plurality of adjustment members thereon; a supporting frame being connected to the adjustment members in such a way as to be separable from the seat;    whereby position and angle of the supporting frame will change when the adjustment members are replaced with other ones that have different dimensions from them.    
   
   
       8 . The chair as claimed in  claim 7 , wherein the adjustment members are spaced apart near to a loop-shaped edge of the seat.  
   
   
       9 . The chair as claimed in  claim 7 , wherein the adjustment members and the seat are formed together such that the adjustment members can't be separated from the seat.  
   
   
       10 . The chair as claimed in  claim 7 , wherein the adjustment members and the supporting frame are formed together such that the adjustment members can't be separated from the supporting frame.  
   
   
       11 . The chair as claimed in  claim 7 , wherein each of the adjustment members has a through hole, and the seat and the supporting frame each have screw holes thereon; threaded connecting elements being passed through the screw holes and the through holes to secure the supporting frame in position.  
   
   
       12 . The chair as claimed in  claim 7 , wherein the supporting frame has a piece of cloth secured thereon.  
   
   
       13 . A chair, comprising 
 a seat;    a back; and    a headrest connected to the back; the headrest having a plurality of adjustment members thereon; a supporting frame being connected to the adjustment members in such a way as to be separable from the headrest;    whereby position and angle of the supporting frame will change when the adjustment members are replaced with other ones that have different dimensions from them.    
   
   
       14 . The chair as claimed in  claim 13 , wherein the adjustment members are spaced apart near to a loop-shaped edge of the headrest.  
   
   
       15 . The chair as claimed in  claim 13 , wherein the adjustment members and the headrest are formed together such that the adjustment members can't be separated from the headrest.  
   
   
       16 . The chair as claimed in  claim 13 , wherein the adjustment members and the supporting frame are formed together such that the adjustment members can't be separated from the supporting frame.  
   
   
       17 . The chair as claimed in  claim 13 , wherein each of the adjustment members has a through hole, and the headrest and the supporting frame each have screw holes thereon; threaded connecting elements being passed through the screw holes and the through holes to secure the supporting frame in position.  
   
   
       18 . The chair as claimed in  claim 13 , wherein the supporting frame has a piece of cloth secured thereon.