KNEE AIRBAG DEVICE WITH COLUMN

A column-mounted knee airbag device in which a knee airbag can be correctly deployed even when the position of a steering column has changed due to a telescopic function. The column-mounted knee airbag device 10 is equipped with a knee airbag 42 folded inside a column cover 15 covering a steering column main body 14 having a telescopic function, and an inflator 40 that generates gas when a vehicle impact is detected or predicted. The knee airbag 42 opens an airbag door 38 of a column cover 15 by deployment pressure when supplied with gas, and deploys between an instrument panel 22 and the knees K of a driver. Gas ejection holes 48 that supply gas from the inflator 40 to the knee airbag 42 are disposed, when viewed from the side with the steering column in a state positioned furthest to the front due to a telescopic function, further to the rear than the instrument panel 22 in the vehicle front-rear direction.