Driver side air bag

Abstract

A driver side air bag, in which the impact applied to tether belts during the deployment of the air bag is small, and comprising a member, of which structure is quite simple, for controlling the direction of the flow of gases in the air bag is provided. Ends of tether belts 68 are inserted between tether belt connecting fabrics 64 and 66 and are sewn by sewing yarn. Each tether belt 68 is an elongated band and is sewn to the tether belt connecting fabrics 64, 66 at both ends of the tether belt 68 and sewn to the front panel at the center in the longitudinal direction of the tether belt 68 . A sheet 70 is made in a loop configuration to overlap an opening 72 with an opening 74 and a ring-like flametight fabric 80 is disposed between the sheet 70 and a holding ring 82 . Reinforcing fabrics 60, 62 , the tether belt connecting fabrics 64, 66 , and an air bag 34 are disposed between the sheet 70 and a retainer 46 , then stud bolts 90 of the holding ring 82 are inserted into bolt through holes 86, 76, 42, 50, 54 h , and nuts (not shown) are screwed onto the respective ends of the stud bolts 90 . In this way, the sheet 70 , the air bag 34 , and the inflator 54 are fixed to the retainer 46.

What is claimed is:  
     
         1 . A driver side air bag comprising a bag body to be deployed in a circular shape and an inflator-fitting opening formed in a rear face of said bag body at the center of the rear face, said driver side air bag being characterized by 
 a rectangular sheet having a central portion facing to said inflator-fitting opening and ends being fixed to said bag body around said inflator-fitting opening, said sheet being disposed inside said bag body.    
     
     
         2 . A driver side air bag according to    claim 1   , characterized in that each end of said sheet is provided with an inflator-inserting opening.  
     
     
         3 . A driver side air bag comprising a bag body to be deployed in a circular shape and an inflator-fitting opening formed in a rear face of said bag body at the center of the rear face, said driver side air bag being characterized by 
 a cruciform sheet having a central portion facing to said inflator-fitting opening and extended portions extending in four directions from said central portion and being fixed to said bag body around said inflator-fitting opening, said sheet being disposed inside said bag body.    
     
     
         4 . A driver side air bag as claimed in    claim 1   , characterized in that each extended portion of said sheet is provided with an inflator-inserting opening.  
     
     
         5 . A driver side air bag as claimed in any one of claims  1  through  4 , characterized by further comprising a connecting member connecting a portion around said inflator-fitting opening and a front face of said bag body.