Adjustable steering column assembly for a vehicle

A tilt steering column assembly for a vehicle, comprising:

• a mounting clamp bracket member having an elongated tilt adjustment hole for allowing tilt adjustment of a steering column, and a tilt lock toothed portion, said mounting clamp bracket member including a clamp bracket comprising first and second side walls each formed with said elongated tilt adjustment hole, and said clamp bracket including a mounting portion adapted to be fixed to a vehicle body;
• a movable column support member positioned between said first and second walls of said clamp bracket, and having a supporting portion for supporting said steering column and a bolt hole;
• a clamping bolt passing through said elongated tilt adjustment hole of said mounting bracket member and said bolt hole of said movable support member;
• a lever member having a pushing portion mounted on said clamping bolt for clamping said movable support member to said mounting bracket member;
• and
• a tilt lock member mounted on said clamping bolt, the lock member having a tilt locking toothed portion for engaging with said tilt lock toothed portion of said mounting bracket member when said movable support member is clamped to said mounting bracket member,
• wherein said tilt lock member includes a cam portion and said lever member includes a cam portion, which is engaged with said cam portion of said tilt lock member at least when said movable support member is clamped to said mounting bracket member,
• wherein said elongated tilt adjustment hole of said mounting bracket member is in a form of a slot, allowing said clamping bolt to move along a predetermined path along said slot, and
• wherein said tilt lock member has a circular bolt hole for receiving said clamping bolt and substantially immobilizing said clamping bolt from moving relative to said tilt lock member when said lever member is rotated to a predetermined position.

A steering column assembly comprising:

• an upper mounting clamp bracket member having a tilt adjustment hole, which is elongated to allow tilting adjustment of a steering column, and a tilt lock toothed portion, said upper mounting clamp bracket member comprising first and second side walls each formed with said elongated tilt adjustment hole and a mounting portion adapted to be fixed to a vehicle body;
• a distance bracket member positioned between said first and second side walls of said upper mounting bracket clamp member and having a supporting portion for supporting said steering column, a telescopic adjustment hole, which is elongated to allow telescopic adjustment of said steering column, and a telescopic lock toothed portion;
• a clamping bolt extending through said elongated tilt adjustment hole and said elongated telescopic adjustment hole;
• an operating lever mounted on said clamping bolt for clamping said distance bracket member to said upper mounting clamp bracket member;
• and
• a locking means mounted on said clamping bolt and having a tilt locking toothed portion for engaging with said tilt lock toothed portion of said upper clamp bracket member, and a telescopic locking toothed portion for engaging with said telescopic lock toothed portion of said distance bracket member.