Rake lock mechanism for steering column
View Patent ↗A steering column assembly includes a jacket pivotable about a rake axis. The steering column assembly also includes a pin having a rake adjustment lever operatively coupled to a first end of the pin, the rake adjustment lever on a first side of the jacket, the pin moveable along a first axis between a locked position and an unlocked position. The steering column assembly further includes a cam assembly operatively coupled to the rake adjustment lever and the pin and located on the first side of the jacket. The steering column assembly yet further includes a teeth locking mechanism operatively coupled to the pin and located on the first side of the jacket.
1. A steering column assembly comprising:
a jacket assembly pivotable about a rake axis, wherein the jacket assembly extends axially from a first end to a second end, wherein the first end is configured to be disposed axially forward in a vehicle relative to the second end, the jacket assembly comprising:
a lower jacket; and
an upper jacket in telescoping engagement with the lower jacket;
a pin having a rake adjustment lever operatively coupled to a first end of the pin, the rake adjustment lever on a first side of the jacket assembly and having a free end accessible to a user without a component attached thereto, wherein the rake adjustment lever is in direct contact with the pin and is a single, integrally formed component, wherein the rake adjustment lever is operatively coupled to the lower jacket;
a cam assembly operatively coupled to the rake adjustment lever and the pin and located on the first side of the jacket assembly;
a teeth locking mechanism operatively coupled to the pin and located on the first side of the jacket assembly and moveable between a locked position and an unlocked position, wherein the teeth locking mechanism comprises a teeth plate engaged with the cam assembly and moveable into and out of engagement with a support structure having teeth thereon to selectively lock and unlock a rake adjustment assembly, wherein the teeth on the support structure are integrally formed on the support structure;
a rake bumper operatively coupled to the pin and located on a second side of the jacket assembly; and
a gear shift mechanism mounted to the upper jacket on the second side of the jacket assembly, wherein the gear shift mechanism is located axially closer to the second end of the jacket assembly compared to a distance between the rake adjustment lever and the second end.
2. The steering column assembly of claim 1 , further comprising a thrust bearing operatively coupled to the pin and located on the second side of the jacket assembly.
3. The steering column assembly of claim 1 , further comprising a compression spring and a spring guide operatively coupled to the pin and located on the first side of the jacket assembly, the compression spring in contact with the teeth locking mechanism.
4. The steering column assembly of claim 1 , wherein a clearance is defined between the gear shift mechanism and the support structure.