| 摘要 |
PROBLEM TO BE SOLVED: To enable a user to easily carry out the movement, etc., of a mattress housing a fluid material, to obviate the impairment of the cushion property, etc., of a raised section even if raising part thereof by a gadget type bed and to enable the user to easily carry out washing, etc., even if the mattress is partly stained. SOLUTION: Plural liquid-tight bags 11, which are longitudinally arrayed and internally house water, are set at the upper part of a rear surface material 5 consisting of a frame 2 of foamed urethane, etc., a waterproof linear 3 having waterproofness and a lower cover 4 and are fixed to the waterproof liner 3 by a fastener 12a and a connector. A front surface material 9 consisting of a thermally insulating cover 6 of foamed urethane, etc., a waterproof cover 7 and a coating cover 8 is placed thereon, by which the mattress structure 1 is constituted. The fastener 16b of the coating cover 8 and the fastener 16a of the lower cover 4 are made freely engageable and disengageable.
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