Beds.

摘要

A bed comprises a profiling mattress frame (40). Backrest (42) is arranged to be lifted by actuator (58) via a crank (56), and thighrest (46) similarly by actuator (60). Legrest (48) is freely pivoted to the thighrest (46). The angles of the parts are sensed and maintained in proportion by control means, so that as if for example the backrest angle (42) is steepened, the thighrest (46) is also raised in proportion but to less extent, taking the legrest (48) with it.