Patent ID: 7793976

Claim:
A two-wheeled or three-wheeled vehicle having a tether structure for an airbag that is deployed and inflated with gas generated by a gas generating source, the tether structure comprising: a first tether, which is attached to an inner surface of a ceiling of the airbag in a deployed and inflated state, and which extends towards a left side of a back face side of the airbag from a center portion of a front face side facing a rider of the vehicle; a second tether, which is attached to said inner surface of said ceiling of the airbag in said deployed and inflated state, and which extends towards a right side of said back face side of the airbag from said center portion of said front face side facing the rider of the vehicle; and a third tether, which is attached to said inner surface of said ceiling of the airbag in said deployed and inflated state, wherein said first and second tethers are disposed so as to form a substantial V-shape with a bottom thereof facing said rider in a top view of the airbag in said deployed and inflated state, and said third tether extends to said front face side from an end portion nearest the rider of said first and second tethers arranged into said substantial V-shape, and when the airbag is compressed in the back and forth direction by receiving a forward momentum from the rider of the vehicle, an expansion of the front face side of the airbag in the right and left direction is regulated by the first and second tethers, and an expansion of the back face side of the airbag in the right and left direction is not regulated by the first and second tethers.