Pole member for a pyrotechnical igniter of an inflator, igniter, inflator and airbag module comprising said pole member

1. A prefabricated pole member subassembly for a pyrotechnical igniter of an inflator, the pole member comprising:

an injection-molded part having a first end for receiving an ignition member and a second end opposite the first end;

a fixing member embedded in the injection molded part for anchoring the pole member subassembly in the inflator, and

contact pins embedded in the injection-molded part, the contact pins having first end portions exposed at the first end of the injection-molded part, and second end portions exposed at the second end portion of the injection-molded part.

2. The pole member ( 11 ) according to claim 1 , wherein the injection-molded part ( 13 ) includes a plastic material.

3. The pole member according to claim 2 , wherein the plastic material includes at least one of polyphenylene sulfide (PPS), polyphthalamide (PPA), and a plastic material cross-linked by irradiation.

4. The pole member ( 11 ) according to claim 1 , wherein the fixing member ( 20 ) includes a metal.

5. An igniter ( 10 ) comprising the pole member ( 11 ) according to claim 1 .

6. The igniter ( 10 ) according to claim 5 , wherein the contact pins ( 14 ) are connected at the first end of the injection-molded part by a bridge wire ( 16 ) which extends through at least one of and adjacent to a pyrotechnical ignition material ( 17 , 18 ), wherein the pyrotechnical ignition material ( 17 , 18 ) is enclosed by a cap ( 19 ) which is connected to the first end of the injection-molded part.

7. An inflator comprising the igniter ( 10 ) according to claim 5 .

8. The inflator according to claim 7 , wherein the fixing member ( 20 ) for anchoring the pole member ( 11 ) and/or the igniter ( 10 ) in the inflator is connected to a casing ( 40 ) of the inflator by substance-to-substance bond.

9. The inflator according to claim 8 , wherein the substance-to-substance bond is at least one of welding, form closure, and crimping.

10. The inflator according to claim 8 , wherein the fixing member forms a spacer so that the injection molded part is arranged to be spaced apart from the casing of the inflator.

11. An airbag module comprising the inflator according to claim 7 .

12. The pole member according to claim 1 , wherein the contact pins include a corrugation that forms a fluid-tight connection between the contact pins and the injection-molded part.

13. The pole member according to claim 1 , wherein the fixing member has a larger sectional diameter than the injection molded part.

14. The pole member according to claim 1 , wherein the fixing member is in the form of a disk or a ring.

15. The pole member according to claim 1 further comprising one or more sealing components formed or arranged in or on the fixing member.

16. The pole member ( 11 ) according to claim 15 , wherein the at least one sealing component ( 32 ) is formed on the fixing member ( 20 ) as an additional sealing element ( 33 ).

17. The pole member ( 11 ) according to claim 16 , wherein the additional sealing element ( 33 ) is connected to the fixing member ( 20 ) by at least one of gluing and vulcanizing.

18. The pole member ( 11 ) according to claim 16 wherein the additional sealing element ( 33 ) includes an O-ring ( 39 ) which is disposed in a clamping groove ( 26 ) of the fixing member ( 20 ).

19. The pole member according to claim 16 , wherein the additional sealing element is at least one of sealing film, shrink hose, fluid sealing material, and viscous sealing material.

20. The pole member ( 11 ) according to claim 15 , wherein the at least one sealing component ( 32 ) is formed in the fixing member ( 20 ) by a geometric design of the fixing member ( 20 ).

21. The pole member according to claim 20 , wherein the geometric design is at least one of a recess, an undercut, and a groove.

22. The pole member according to claim 15 , wherein the fixing member includes a through-hole through which the contact pins extend.

23. The pole member ( 11 ) according to claim 22 , wherein the at least one sealing component ( 32 ) is formed or arranged in or on at least one end face ( 23 ) of the fixing member ( 20 ) and extends through the through-hole ( 21 ) of the fixing member ( 20 ).

24. A pyrotechnical igniter for an inflator, the igniter comprising:

an injection-molded part having first and second opposite end portions,

a fixing member embedded in the injection molded part and being configured to be anchored to the inflator,

contact pins embedded in the injection-molded part, and

an ignition member secured to the first end of the injection-molded part, wherein the first end of the injection-molded part is configured so that the ignition member is fit over a radially outward facing surface of the first end of the injection-molded part.