US Patent 10470561 Height adjustment mechanism

An embodiment includes a leg height adjustment mechanism that includes a first and second latch arms, a first and second retractors, and an activator. The latch arms each include an engagement structure. The retractors each include a sloped surface and a receiving structure. The receiving structure is engaged with one of the engagement structures of the first or the second latch arms. The first latch arm extends in a first lateral direction and the second latch arm extends a second lateral direction. The second retractor is separated from the first retractor in a second lateral direction that is opposite the first lateral direction. The activator includes angled lower surfaces that are positioned outwardly relative to the sloped surfaces.