Patent ID: 8056925
Filing Date: 2011-11-15
Classification: B60R,B62D

Abstract:
1. A column-mounted knee airbag device disposed to the inside of a column cover covering a rear end side of a steering column, the steering column configured with a steering shaft and a column tube covering the steering shaft, wherein the column tube is configured with a double-tube construction, having a sliding-side column tube being at least partially slidably disposed within a fixed-side column tube, the column tube being collapsible within a specific stroke range by input of a load of a specific value or greater, and the steering column comprising: a first obstruction, fixed to a rear end side of the sliding-side column tube and disposed in a state such that a portion of the first obstruction projects down below the sliding-side column tube; and a second obstruction, fixed to a rear end side of the fixed-side column tube at a position separated by a specific distance from the first obstruction, and disposed in a state such that a portion of the second obstruction projects downward below the fixed-side column tube; and also with an airbag module attached to the steering column so as to be disposed at the column tube below the outer peripheral face of the sliding-side column tube between the first obstruction and the second obstruction, the airbag module comprising a gas generating device configured to generate gas when there is a collision, and a knee-airbag, which is housed inside of the column cover in a folded state and which receives the generated gas and inflates and deploys toward a driver-knee side, wherein the gas generating device is disposed within the airbag module toward a first obstruction side, and the knee-airbag in the folded state is disposed within the airbag module at a second obstruction side and adjacent to the gas generating device.