PURPOSE: To provide a fluidized solid particle type body support equipment where lessening of the bludge is possible when an air-permeable sheet between a filling layer and an elastic layer is not used. Also, it is made possible in this equipment to form the upper frame as one body even through it has a structure of having an air-permeable sheet inserted between the filling layer and elastic layer.

CONSTITUTION: Comparing with a supporting part of a conventional equipment, the fluidized solid particle type body support equipment 1 has a supporting part 2 consisting of a filling layer 83, an air-permeable sheet 84, and a flexible supporter 21 between them. The supporter 21 is like a net woven with rubber threads, and has the same length and width as those of the air-permeable sheet 84. This supporter 21 is inserted together with the air-peremable sheet 84 between a lower flange 883b of a frame material 883 in the upper frame body 881 and an upper flange 884a of a frame material 884, and installed tightly with the appropriate fastening means.