Patent ID: 8505407

Claim:
A steering column device, comprising: an inner column; a hollow cylindrical outer column axially relatively movably fitted over the inner column and including clamp portions; a slit formed, over a prescribed axial length, in the outer column; a clamping device which axially relatively immovably clamps the inner column to the outer column by radially contracting the outer column; a reinforcement part is provided at a peripheral edge of the slit formed in the outer column, wherein the reinforcement part includes a substantially semi-circular arc rib that projects radially outwardly from an outer periphery of the outer column and first and second linear ribs that extend linearly from respective ends of the semi-circular arc rib to an end face of the clamp portions; a third linear rib on the outer periphery of the outer column substantially in parallel with the slit, wherein the third linear rib extends substantially as long as the slit and wherein a height of the third linear rib gradually decreases in a direction toward a closed end section the slit.