Impact absorbing steering column device

A shock absorbing steering column apparatus arranged such that a steering column is secured and supported by body-side upper and lower brackets provided respectively in a rear part and a front part of a vehicle and connected to a vehicle body strength member, column-side upper and lower brackets provided respectively in the rear part and front part of the vehicle and secured to the steering column, a lock mechanism that connects the column-side upper bracket to the body side upper bracket and a supporting pin passed through both of the body-side lower bracket and column-side lower bracket so that the column-side lower bracket is disconnected from the body-side lower bracket at a time of collision to absorb a shock of the collision, characterized in that a spacer is interposed between said body-side lower bracket and said column-side lower bracket so that a main body of the spacer is supported by said column-side lower bracket, the spacer is formed with a pin insertion hole through which the supporting pin is passed, and a portion to be broken by the shock is formed in a region of the spacer surrounding the pin insertion hole.