A - Human Necessities – 47 – C
Patent
A - Human Necessities
47
C
A47C 27/05 (2006.01) A47C 27/00 (2006.01) A47C 27/14 (2006.01)
Patent
CA 2127975
The present inventions is directed to a bed mattress, in which a mattress body (1) is formed with a core portion consisting of a hard molded foam having a sufficient thick- ness or hollow synthetic resin moldings having a rigidity, and elastic surface layers (6), (7) including protecting plates (4), (5) overlayed on both sides of the core portion (3) sandwiched therebetween. At least one of the surface layers (6), (7) is formed by overlapping a first cushion layer (10) consisting of a soft cushion material, and a second cushion layer (11) consisting or a semihard cushion material having a depression-and-protrusion surface (13) on its surface on the protecting plate 4. In a conventional bed mattress, since a plurality of coil springs fixed to a metal frame is incorporated, a gross weight becomes heavier and handling is inconvenient. In this invention, however, since the metal member is not used and a hard molded foam and hollow synthetic resin moldings having a rigidity are used as a core portion (3), it is light and there is no problem of rusting and breaking. Besides, since the depression-and-protrusion surface (13) of the second cushion layer (11) on the surface layer supports the body in point contact, a good permeability and the finger-pressure operation by the protrusions (14) are obtained for improving health.
Nihonkenkozoshinkenkyukai Co. Ltd.
Riches Mckenzie & Herbert Llp
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