OBTURATING ELEMENT, GAS GENERATOR PROVIDED WITH THE LATTER AND METHOD FOR MANUFACTURING SAME

摘要

A metal obturating element is capable of being resistance-welded to the outer side of an edge of a hole of a metal wall of a pressurized gas reservoir of a gas generator, including on a first side, a portion dimensioned for covering the hole and having an end intended to be inserted into the hole, and a portion for connecting the portion to the peripheral edge, having a surface tilted rearwards relatively to the end and around the portion, this surface intended to be welded to the outer side of the edge of the hole. The element is formed with a deep-drawn part. The tilted surface forms around the central portion an angle greater than or equal to 50° and less than or equal to 80° relatively to the axis. The part includes in a second side located opposite to the first side another surface tilted rearwards relatively to the end and this by at least one angle greater than or equal to 10° and less than or equal to 80° relatively to the axis.

主权项

1. A metal obturating element able of being resistance-welded to the outer side of a first edge of a hole of a metal wall of a pressurized gas reservoir of a gas generator, the obturating element comprising:
on a first side, from a central geometrical axis of the latter towards a second peripheral edge of the latter:
a first central portion dimensioned in order to cover the hole and having a front end intended to be at least partly inserted into the hole,a second portion for connecting the first central portion to the second peripheral edge, the second connecting portion, having on the first side, a surface tilted rearwards relatively to the front end of the first portion and around the first portion, this tilted surface being intended to be welded to the outer side of the first edge of the hole of the metal wall of the pressurized gas reservoir, in order to obturate the hole, wherein the obturating element is a deep-drawn part, wherein the tilted surface of the second connecting portion in the first side is tilted around the first central portion by at least one first angle greater than or equal to 50° and less than or equal to 80° relatively to the central geometrical axis, wherein the part including in a second side located opposite to the first side, another surface tilted rearwards relatively to the front end of the first portion and this by at least one second angle greater than or equal to 10° and less than or equal to 80° relatively to the central geometrical axis.