Lower level bed has support plate which is arranged below support cloth attached at rectangular frames, and adjustable in longitudinal direction of frames

摘要

The lower level bed (10) has a support plate (20) which is arranged below support cloth (14) attached at rectangular frames (12), and adjustable in longitudinal direction of frames. A support device (18) is engaged on the support cloth in a region spaced apart from the frames. A support bracket (26) is supported over support unit. The support plate is formed of hard cushion layer (60) made of froth material with a strain hardness of 10-200 kPa.