Steering column device

A steering column device, comprising:

• an outer column having a cylindrical shape and arranged along a vehicle longitudinal direction;
• an inner column having a cylindrical shape and inserted into the outer column so as to be movable in a cylinder-axis direction of the outer column;
• a lock mechanism having an operating lever operable to a locked position to fasten the inner column to the outer column and an unlocked position to allow the inner column to be adjusted in a cylinder-axis direction of the outer column;
• a restricting member penetrating through a cylinder wall of the outer column from a side of an outer circumferential face of the outer column and held in a restricting position where the restricting member can be engaged with the inner column, the restricting member being also separable from the restricting position;
• an auxiliary restricting member engaging with the restricting member and held in a holding position to hold the restricting member in the restricting position;
• and
• a coupling mechanism which couples the auxiliary restricting member with the inner column when the lock mechanism is in the locked position, wherein
• when a load exceeding a set value is applied to the inner column in the cylinder-axis direction, the auxiliary restricting member moves together with the inner column, and the auxiliary restricting member and the restricting member are disengaged from each other, whereby the restricting member is separated from the restricting position where the restricting member can be engaged with the inner column.