Patent ID: 8226115
Filing Date: 2012-07-24
Classification: B60R

Abstract:
1. An airbelt apparatus for a vehicle, comprising: an occupant restraint webbing that corresponds with a thoracic region of an occupant seated at a vehicle seat; an inflation portion that is provided at the occupant restraint webbing and that, at a time of inflation, corresponds with a cephalic region of the occupant; an inflator configured to supply gas for inflation to the inflation portion; a side impact sensor that detects or predicts a side impact; a control unit that causes the inflator to operate on the basis of an output signal from the side impact sensor; and an inflation-time cross-sectional shape regulation component that is provided at a shoulder portion of a seatback of the vehicle seat, through which the occupant restraint webbing passes, and that, by restraining inflation of the inflation portion to a vehicle lateral direction outer side at the time of inflation of the inflation portion, effects regulation such that a cross-sectional shape of the inflation portion is longest in a vertical direction; wherein the inflation-time cross-sectional shape regulation component is an inflation-time regulation belt guide at which an inflation-time regulation guide hole is provided, the guide hole having an elliptical shape that is longer in the vertical direction than in a vehicle lateral direction, so as to regulate the cross-sectional shape of the inflation portion at the time of inflation, and an upper end of the inflation-time regulation guide hole is provided so as to extend to a position sideward of a headrest of even height therewith.