Occupant protection system
AssigneeTakata Corporation
InventorHiromichi Yoshikawa
Life of this patent
Estimating the term…
Abstract
An occupant protection system is provided in which gas from a gas generator flows through a duct and into an airbag smoothly even with a gas generator that emits a jet of gas in non-axial directions relative to the duct. The airbag disposed under a seat cushion and the gas generator are joined together with the duct. In one form, the duct is fitted on the nozzle of the gas generator, so that the inner circumferential surface of the duct faces gas ports around the side circumferential surface of the nozzle. When the gas generator emits a jet of gas, the gas from the gas generator issues from the gas ports radially relative to the nozzle, and then strikes against the inner circumferential surface of the duct to change in direction, thus flowing along the axis of the duct.
Claims17
An occupant protection system comprising:
- a seat airbag for lifting a vehicle seat with airbag inflation;
- a gas generator outside of and spaced from the seat airbag, the gas generator generating hot inflation gas for inflating the airbag in vehicle emergency conditions;
- an elongate duct extending outside the seat airbag and between the seat airbag and the gas generator for delivering inflation gas to the airbag with the inflation gas flowing axially through the elongate duct and axially out from the duct into the airbag.
A vehicle seat airbag system comprising:
- a vehicle seat having a seat cushion;
- an airbag disposed under the seat cushion;
- a gas generator for generating inflation gas to inflate the airbag and lift up the seat cushion in emergency conditions;
- a nozzle portion of the gas generator having gas ports arranged to emit inflation gas generally radially therefrom;
- and
- a duct extending between the nozzle portion to the airbag under the seat cushion to redirect the gas flowing generally radially from the gas generator nozzle portion to flow axially in the duct and into the airbag for smooth inflation gas flow into the airbag.
Dependencies are inferred from the claim text.