| 摘要 |
PROBLEM TO BE SOLVED: To provide a mattress system which can be certainly crooked when a user raises up the upper half of the body and is good in appearance. SOLUTION: The mattress system includes a base unit, a spring unit 34, which is prepared on the top of the base unit and can be crooked, and an armoring body 35 which integrally covers the spring unit and the base unit, the base unit is composed of a pair of side frames 3 in which a back raising rod part 5 is rotatably connected with a fixed rod part 4, a linking part rod which connects a pair of the side frames 3 at a predetermined interval, two or more mounting members, which is disposed by being divided according to the fixed rod part and a movable rod part across a pair of the side frames 3 connected by a linking rod and the spring unit is mounted on the top, a driving source prepared in the fixed rod part of the side frame, and the first linking which makes the movable rod part rise and fall using a connection end with the fixed rod part as a fulcrum by being actuated by the driving source. COPYRIGHT: (C)2009,JPO&INPIT
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