US Patent 7412911 Steering column apparatus

A steering column apparatus includes: a stationary column member; a movable column member whose one end is supported on the stationary column member nonrotatably about a center axis and movably along the center axis; a column head disposed on the other end of the movable column member; a wheel shaft supported rotatably on the column head; a column clamp for clamping and unclamping the movable column member with respect to the stationary column member at two or more points which are spaced along the center axis of the movable column member; and a control lever whose operation lever end is positioned in the vicinity of a steering wheel and which is capable of operating the column clamp.