Folding chair and supporting mold frame thereof for vacuum-formed seat board

Abstract

A supporting mold frame of a folding chair for a vacuum-formed seat board includes a supporting frame and one or more supporting abutting members. The vacuum-formed seat board includes a seat panel and a side extending downward from all sides of the seat panel, and the supporting frame abuts an inner side of the side. The one or more supporting abutting members support a bottom surface of the seat panel adjacent to a peripheral edge of the seat panel, the one or more supporting abutting members support a left side and a right side of the bottom surface of the seat panel, or the one or more supporting abutting members support the left side and the right side of the bottom surface of the seat panel adjacent to corners of the seat panel.

What is claimed is: 
     
         1 . A supporting mold frame of a folding chair for a vacuum-formed seat board, comprising:
 a supporting frame, and   one or more supporting abutting members, wherein:
 the vacuum-formed seat board comprises a seat panel and a side extending downward from all sides of the seat panel, 
 the supporting frame abuts an inner side of the side, 
 the one or more supporting abutting members are connected to an inner side of the supporting frame, 
 the vacuum-formed seat board covers the one or more supporting abutting members, and 
 one of:
 the one or more supporting abutting members support a bottom surface of the seat panel adjacent to a peripheral edge of the seat panel, 
 the one or more supporting abutting members support a left side and a right side of the bottom surface of the seat panel, or 
 the one or more supporting abutting members support the left side and the right side of the bottom surface of the seat panel adjacent to corners of the seat panel. 
 
   
     
     
         2 . The supporting mold frame of the folding chair for the vacuum-formed seat board according to  claim 1 , wherein:
 the supporting frame and the one or more supporting abutting members are connected together by rivets for mounting leg tubes of the folding chair, and   the rivets pass through the side of the vacuum-formed seat board.   
     
     
         3 . The supporting mold frame of the folding chair for the vacuum-formed seat board according to  claim 1 , wherein:
 the one or more supporting abutting members are locked on the supporting frame.   
     
     
         4 . The supporting mold frame of the folding chair for the vacuum-formed seat board according to  claim 1 , wherein:
 the one or more supporting abutting members are plastic members.   
     
     
         5 . The supporting mold frame of the folding chair for the vacuum-formed seat board according to  claim 4 , wherein:
 a portion of the one or more supporting abutting members configured to support the seat panel is a hollow structure.   
     
     
         6 . The supporting mold frame of the folding chair for the vacuum-formed seat board according to  claim 1 , wherein:
 outer sides of a left side and a right side of the vacuum-formed seat board are disposed with sliding rods, and   rivets enable leg tubes, the sliding rods, the side, the supporting frame, and the one or more supporting abutting members to be connected together.   
     
     
         7 . The supporting mold frame of the folding chair for the vacuum-formed seat board according to  claim 1 , wherein:
 the side of the vacuum-formed seat board comprises a reinforcing step expanding outwardly,   an upper end of the supporting frame forms a pressure-bearing step, and   the pressure-bearing step supports the reinforcing step.   
     
     
         8 . The supporting mold frame of the folding chair for the vacuum-formed seat board according to  claim 1 , wherein:
 the one or more supporting abutting members are four supporting abutting members, and   the four supporting abutting members are configured to respectively support the left side and the right side of the bottom surface of the seat panel adjacent to the corners of the seat panel.   
     
     
         9 . The supporting mold frame of the folding chair for the vacuum-formed seat board according to  claim 1 , wherein:
 the one or more supporting abutting members are two supporting abutting members, and   the two supporting abutting members are configured to respectively support the left side and the right side of the bottom surface of the seat panel.   
     
     
         10 . A folding chair, comprising:
 four leg tubes,   a backrest board,   the vacuum-formed seat board, and
 the supporting mold frame according to  claim 1 .