BED WITH SIDE RAIL

摘要

A bed capable of keeping constant a distance between rear and leg side rails when a rear bottom raising operation is performed. First and second links (2) and (3) are supported on a frame (1) rotatably at the lower ends thereof. A connection part (6) is fixed to the base end part of a deck (7), and the upper ends of the first and second links (2) and (3) are rotatably connected to the connection part (6). An L-shaped rotor (4) is rotatably supported on the frame (1), and one end of a third link (5) is rotatably connected to the upper end part (1c) thereof. The other end of the third link (5) is rotatably connected to the connection part (6). An actuator (13) is supported on the frame (1), and a piston rod (13a) is rotatably connected to the center part (1b) of a rotor (4). The rotor (4) is rotated by the advancement of the piston rod (13a) to change the relative positions of fourth, fifth, and sixth links to each other so as to slide the leg side rails along the frame (1).