| 摘要 |
Safety device, especially for automobiles, comprises a collision detector controlling the actuation of a source of gas under pressure connected to at least one inflatable safety cushion, the cushion comprising two adjacent non-communicating chambers, maintained at different pressures at the time of use, the inner chamber communicating with the atmosphere via orifices with valves which open only in the direction which admits air into the said chamber, and an outer chamber connected to the said source of gas under pressure and enclosing, at least partially, the inner chamber, the walls of these two chambers being firmly fixed to one another in a discontinuous manner, the outer chamber playing the role of a device for spreading out the cushion when it is pressurised, and the inner chamber being spread out by pressurisation of the outer chamber and being pressurised itself by sucking in air from the atmosphere via the inlet orifices. |
