Patent ID: 7578517
Filing Date: 2009-08-25
Classification: B60R

Abstract:
1. A knee airbag device comprising a knee airbag that is disposed in a folded state inside a steering column cover, wherein: when the knee airbag receives gas, the knee airbag is inflated and deployed from an inside of the steering column cover toward a knee portion of an occupant; the knee airbag includes an instrument panel-side foundation cloth positioned close to an instrument panel when the knee airbag is deployed, an occupant-side foundation cloth positioned close to the occupant when the knee airbag is deployed, and a first strap and a second strap, which extend in a vehicle-width direction, that connect the instrument panel-side foundation cloth and the occupant-side foundation cloth; the first strap is positioned above the second strap in a vehicle-height direction when the knee airbag is deployed; a length of the first strap in a vehicle-longitudinal direction is set to be larger than a length of the second strap in the vehicle-longitudinal direction when the knee airbag is deployed; a length of the first strap in the vehicle-width direction is larger than a length of the steering column cover in the vehicle-width direction; and a cut-out portion is formed in the first strap at a position that faces the steering column cover.