Single actuator panel lift and clamp system
An axially adjustable steering column includes a first jacket. The steering column also includes a second jacket, wherein the first jacket is axially adjustable relative to the second jacket. The steering column further includes an adjustment lever. The steering column yet further includes a locking mechanism, wherein the adjustment lever selectively moves the locking mechanism between a locked position and an unlocked position, wherein the locked position prevents axial adjustment of the first jacket relative to the second jacket in both axial directions, and the unlocked position allows adjustment of the first jacket relative to the second jacket.
1. An axially adjustable steering column comprising:
a first jacket;
a second jacket, wherein the first jacket is axially adjustable relative to the second jacket;
an adjustment lever;
a locking mechanism, wherein the adjustment lever selectively moves the locking mechanism between a locked position and an unlocked position, wherein the locked position prevents axial adjustment of the first jacket relative to the second jacket in both axial directions, and the unlocked position allows adjustment of the first jacket relative to the second jacket, wherein the locking mechanism comprises:
an energy absorbing strap defining a first series of teeth extending axially and a second series of teeth extending axially;
a first cam having a plurality of teeth engageable with the first series of teeth in the locked position and disengaged from the first series of teeth in the unlocked position, wherein the first cam is rotatably supported on a pin to allow the plurality of teeth of the first cam to rotate into and out of engagement with the first series of teeth of the energy absorbing strap; and
a second cam having a plurality of teeth engageable with the second series of teeth in the locked position and disengaged from the second series of teeth in the unlocked position, wherein the second cam is supported on the pin to allow the plurality of teeth of the second cam to translate into and out of engagement with the second series of teeth of the energy absorbing strap.
2. The axially adjustable steering column of claim 1 , wherein the first series of teeth and the second series of teeth are disposed on respective surfaces of the energy absorbing strap which are oriented perpendicularly to each other.
3. The axially adjustable steering column of claim 1 , wherein the first series of teeth and the second series of teeth are angled differently from each other.
4. The axially adjustable steering column of claim 1 , wherein the first cam is rotationally biased toward the locked position with a biasing member in contact with the first cam.
5. The axially adjustable steering column of claim 4 , wherein the biasing member is a torsion spring.
6. The axially adjustable steering column of claim 1 , wherein the first cam and the second cam are formed of the same materials.
7. The axially adjustable steering column of claim 1 , wherein the first cam and the second cam are formed of different materials.
8. The axially adjustable steering column of claim 1 , wherein the first cam includes a first cam surface in contact with a second cam surface of the second cam, wherein rotational movement of the first cam toward the unlocked position translates the second cam.