dispositivo de airbag de joelho montado em coluna

Rapidly constraining the knees of a driver, even for a steering column structure with plural obstructions projecting below the rear end side of the steering column, while also suppressing to a great extent, or preventing, any detriment to column collapse operation during a frontal collision. The steering column 12 is fixed to the vehicle body side with a lower bracket 46, an upper bracket 44 and a housing 48, and a combination switch 68 is disposed at the rear end side of an inner tube 36. Lower portions 48A, 70A are disposed in a state so as to protrude below a column tube 26 and face each other, so that an airbag module 64 is installed in an installation space 74 formed between the two portions. A module case 54 is manufactured from a fabric, and the airbag module 64 is attached at a position in the vicinity of the combination switch 68 through a rear attachment bracket 76. Consequently, there is no detriment to collapsing operation of the column tube 26.