Metal fixing material bushing and method for producing a base plate of a metal fixing material bushing

Abstract

A glass-to-metal bushing for igniters of airbags or belt tensioning pulleys. A metal pin is arranged in a slot in the base plate in the fixing material, the base plate being formed by one element whereby the base geometry describing the slot is produced by at least one separation process. Structure is provided between the front and rear of the base plate for preventing relative motion of the fixing material in the direction of the base plate rear portion across from the inner circumference of the slot.

1 . Metal fixing material bushing for igniters of airbags or belt tensioning pulleys, in particular glass to metal bushing; 
 with at least one metal pin which is arranged in a slot in the base plate in a fixing material, whereby the base plate has a front and a rear characterized by the following features:    the base plate is formed by one element, whereby the base geometry describing the slot is produced by at least one separation process;    resources are provided between the front and rear of the base plate for prevention of a relative motion of fixing material in the direction of the rear across from the inner circumference of the slot.    
   
   
       2 - 33 . (canceled)  
   
   
       34 . Method for manufacturing a base plate of a metal bushing according to  claim 1 , 
 in which from one part, in particular a sheet metal part, of predefined thickness the final contour describing the outer geometry is gained by means of a separation process;    in which to form the slot for at least one metal pin the base geometry describing the starting form of the slot is gained by means of punching out of the part, in particular of the sheet metal part.    
   
   
       35 . Method according to  claim 34 , characterized by the fact that the final contour describing the outer geometry gained by the separation process and the base geometry describing the starting form of the slot are produced in one processing step in the form of punching out with a tool.  
   
   
       36 . Method according to  claim 34 , characterized by the fact that the undercuts in the slots are formed by deformation of the slot.  
   
   
       37 . Method according to  claim 36 , characterized by the fact that the deformation is achieved by means of at least one stamping operation.  
   
   
       38 . Method according to  claim 36 , characterized by the fact that the stamping and punching operations are performed from the same side on the base plate.  
   
   
       39 . Method according to  claim 36 , characterized by the fact that the stamping and punching operations are performed from at different sides on the base plate.  
   
   
       40 . Method according to  claim 36 , characterized by the fact that the stamping and punching operations are performed on both sides on the base plate.  
   
   
       41 . Method according to  claim 40 , characterized by the fact that either tools with the same parameters or the same tools are used for stamping and punching.  
   
   
       42 . Method according to  claim 34 , characterized by the fact that prior to the punching out of the slot in the area of the slot to be produced on the sheet metal part a stamping operation is performed.  
   
   
       43 . Method according to  claim 34 , characterized by the fact that the socket of the base plate is obtained after punching out by means of deep drawing.  
   
   
       44 . Method according to  claim 35 , characterized by the fact that the undercuts in the slots are formed by deformation of the slot.  
   
   
       45 . Method according to  claim 37 , characterized by the fact that the stamping and punching operations are performed from the same side on the base plate.  
   
   
       46 . Method according to  claim 37 , characterized by the fact that the stamping and punching operations are performed from at different sides on the base plate.  
   
   
       47 . Method according to  claim 37 , characterized by the fact that the stamping and punching operations are performed on both sides on the base plate.  
   
   
       48 . Method according to  claim 38 , characterized by the fact that the stamping and punching operations are performed on both sides on the base plate.  
   
   
       49 . Method according to  claim 39 , characterized by the fact that the stamping and punching operations are performed on both sides on the base plate.  
   
   
       50 . Method according to  claim 35 , characterized by the fact that prior to the punching out of the slot in the area of the slot to be produced on the sheet metal part a stamping operation is performed.  
   
   
       51 . Method according to  claim 36 , characterized by the fact that prior to the punching out of the slot in the area of the slot to be produced on the sheet metal part a stamping operation is performed.  
   
   
       52 . Method according to  claim 37 , characterized by the fact that prior to the punching out of the slot in the area of the slot to be produced on the sheet metal part a stamping operation is performed.