| 摘要 |
A selectively contoured single unibody foam piece (10) for use as a layer in a cushioned load bearing structure has a first zone (121) with a first surface topography having distinct support properties from a second zone (122) with a second surface topography. The zones (121, 122) of differing topography are formed in the surface of a single, unibody piece of foam (10) by applicable foam cutting techniques. Patterned removal of foam material from a single piece (10) creates zones (121, 122) with different density, ILD or other loa d bearing properties with different support and feel characteristics. A single unibody component (10) in a responsive flexible support structure has distin ct zones (121, 122) with distinct support characteristics, the zones corresponding in location with the anticipated loads and loading patterns of a flexible support device in use.
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