公开(公告)号：US20190383589A1

公开(公告)日：2019-12-19

申请号：US16555176

申请日：2019-08-29

Applicant: AUTOLIV DEVELOPMENT AB

Inventor： Patrice BOUTIN ,  Jose REINOSO

IPC: F42B3/198 ,  F42B3/04 ,  F42B3/12

Abstract: A metallic case for a pyrotechnical igniter of a gas generator for a vehicle safety device that includes a peripheral side wall, a closed end, and a weak zone in the peripheral side wall. The weak zone extends along a continuous trace having a first end portion, a second end portion, and an intermediate portion between the first and second end portions. The first and second end portions of the continuous trace both transition from a first point having a first side wall depth to a second point having a second side wall depth. The second side wall depth is greater than the first side wall depth. The weak zone is configured for opening a vent in the peripheral side wall in response to an increase of pressure within the metallic case.

公开(公告)号：US20180172411A1

公开(公告)日：2018-06-21

申请号：US15538755

申请日：2015-12-17

Applicant: Autoliv Development AB

Inventor： Patrice BOUTIN ,  Jose REINOSO

IPC: F42B3/198 ,  F42B3/04 ,  F42B3/12

Abstract: A method of manufacturing a metallic case of a pyrotechnical igniter having a wall with at least one weak zone and an inner surface in the case with at least one part facing this at least one weak zone includes positioning the case on a matrix having a plane zone. The method further includes striking the wall with at least one punch so as to, in a single movement of striking, deform at least the part of the inner surface facing this at least one weak zone and having at least one initially curved-in zone in order to bring it on the plane zone and to form in this manner a plane inner surface, and to form the at least one weak zone.