Methods and apparatus for a support mechanism are provided. The support mechanism includes an engagement pin including an engagement surface and a latch surface wherein the engagement pin is coupled to a base. The support mechanism also includes a pawl that includes an engagement surface complementary to the pin engagement surface and a latch surface complementary to the pin latch surface wherein the pawl is biased toward engagement of the pawl latch surface with the pin latch surface. The support mechanism also includes a ring latch that includes an annular ring having a toothed edge, the ring latch is coupled to the pawl such that the pawl extends axially away from the ring latch in a direction opposite the toothed edge.