초록 ▼

The invention relates to a restraint system for vehicle occupants with a gas cushion and a gas generator that fills the gas cushion and equipped with a solid-matter propellent charge as well as an electrically activated ignition device designed as a laser and provided in order to ignite the solid-ma

The invention relates to a restraint system for vehicle occupants with a gas cushion and a gas generator that fills the gas cushion and equipped with a solid-matter propellent charge as well as an electrically activated ignition device designed as a laser and provided in order to ignite the solid-matter propellent charge. To increase the functional reliability, the laser which is designed as a semiconductor laser is situated in an ignition chamber of the generator whose beam is aimed or guided directly onto the gas-generating solid-matter propellent charge at the time of ignition.

대표청구항 ▼

An air bag gas generator comprising: a gas generator housing; an ignition chamber disposed within said housing; a laser disposed in said ignition chamber; a propellant chamber, disposed within the housing, and communicating with the ignition chamber by at least one aperture; a gas-generating propell

An air bag gas generator comprising: a gas generator housing; an ignition chamber disposed within said housing; a laser disposed in said ignition chamber; a propellant chamber, disposed within the housing, and communicating with the ignition chamber by at least one aperture; a gas-generating propellant charge disposed within the propellant chamber; and laser beam directing means for directing a beam of light from said laser through said at least one aperture directly onto the gas-generating propellant charge; wherein said at least one aperture comprises first and second apertures, and wherein the laser beam directing means comprises: an optical waveguide optically coupled to the laser to receive the laser beam therefrom; a beam splitter disposed in the optical waveguide, for receiving the laser beam from the laser and splitting the laser beam into first and second beam portions; and first and second focussing means, respectively disposed between said beam splitter and said first and second apertures, for focussing a respective one of the first and second beam portions directly onto said gas-generating propellant charge through said first and second apertures.