An ambulance cot (10) comprising: a base frame (11), a litter frame (16) and an X-frame support mechanism interconnecting said base frame (11) and said litter frame (16) and being configured to support said litter frame in one of a plurality of positions relative to said base frame, said support mechanism including at least one pair of frame members (22,23) pivotally secured to each other proximate the mid-length thereof, said frame members each having opposite ends respectively secured to one of said base frame and said litter frame, at least one of said pair of frame members having a first mount (226) oriented between said mid-length thereof and said base, said at least one of said pair of frame members having a second mount (227) oriented between said mid-length thereof and said litter frame, said first and second mounts being configured to respectively engage said base frame and base frame and said, litter frame in response to said litter frame becoming proximate said base frame.
