Clamp assembly for a steering column assembly

A clamp assembly for securing a fixed portion of a support bracket of a vehicle to a movable portion of a steering column shroud of a steering column assembly, the clamp assembly comprising:

• a clamp pin which passes through an opening in the fixed portion of the support bracket and an opening in the moveable portion, a stopper located towards one end of the clamp pin,
• a toothed block carried by the clamp pin having a set of rake teeth, the rake teeth being urged by the stopper into engagement with a set of teeth fixed to the support bracket when the clamp assembly is in a clamped condition, thereby securing relative positions of the fixed portion of the support bracket and the moveable portion of the steering column assembly;
• and a biasing means that provides a biasing force that acts in an unclamped condition of the clamp assembly to bias the stopper of the clamp pin away from the moveable portion to permit the set of rake teeth on the toothed block to move clear of the set of teeth of the fixed portion of the support bracket, thereby permitting relative movement of the fixed portion of the support bracket and the moveable portion of the steering column assembly;
• wherein the biasing force provided by the biasing means acts upon the clamp pin without passing through the toothed block;
• and
• further comprising at least one secondary biasing means located between the biasing means and the toothed block which maintains a clearance between the toothed block and the biasing means when in the unclamped condition.