Seat back structure

Abstract

A seat back structure is provided, which has a plurality of bumps and a plurality of gaps arranged alternately as an array on a seat back body. Further, the bumps and the gaps of adjacent rows are arranged in staggered manner. According to the above structure, air can flows smoothly between user's back and the seat back so as to maintain user's back in cool state. Furthermore, good flexibility can be achieved so that the seat back is in compliant with curve of user's back by the staggered arrangement of the bumps and the gaps of the array, so that good ergonomics design and good sitting effect can be achieved.

What is claimed is: 
     
         1 . A seat back structure, having a seat back body with flexibility, wherein a plurality of bumps and a plurality of gaps being arranged alternately on said seat back body, said bumps and said gaps of adjacent two rows being arranged in staggered manner so that one of said bumps corresponds to an gap of the another adjacent row and one of said gaps corresponds to one bump of the another adjacent row, and a spacing being further provided between adjacent two rows having alternate arrangement of said bumps and said gaps. 
     
     
         2 . The seat back structure as claimed in  claim 1 , wherein said bumps are formed as long ribs. 
     
     
         3 . The seat back structure as claimed in  claim 2 , wherein said bumps are integrally formed with said seat back body. 
     
     
         4 . The seat back structure as claimed in  claim 2 , wherein said structure as stated above are further provided with bulges having dimension smaller than that of said gaps of the structure in said gaps respectively. 
     
     
         5 . The seat back structure as claimed in  claim 4 , wherein said bumps and said bulges are integrally formed with said seat back body. 
     
     
         6 . The seat back structure as claimed in  claim 1 , wherein said structure as stated above are further provided with bulges having dimension smaller than that of said gaps of the structure in said gaps respectively. 
     
     
         7 . The seat back structure as claimed in  claim 6 , wherein said bumps and said bulges are integrally formed with said seat back body. 
     
     
         8 . The seat back structure as claimed in  claim 1 , wherein said bumps are integrally formed with said seat back body. 
     
     
         9 . The seat back structure as claimed in  claim 1 , wherein said structure having said bumps and said gaps arranged alternately are in longitudinal arrangement. 
     
     
         10 . The seat back structure as claimed in  claim 1 , wherein said structure having said bumps and said gaps arranged alternately are in transverse arrangement.