| 摘要 |
A safety device is provided in a motor vehicle comprising an air bag mounted on a lap strap of a safety belt arrangement (see figure 1). The air bag is so configured that when the lap strap is in use and when the air bag is inflated it has, in front of the centre point of the lap strap two dimensions, the first dimension being the distance from the centre point of the lap strap, measured parallel with the longitudinal axis of the vehicle, to the forward most part of the air bag in front of the centre point, and the second dimension being the greatest substantially vertical thickness of the inflated bag in front of the centre point. The air bag is configured so that at least one of these two dimensions increases with increasing distance of the mid point of the lap strap from the its anchored end (ie. at least one of the two dimensions increases when a larger person is restrained by the belt). The air bag may be folded in a particularly defined manner (see figures 4 to 16). |
