초록 ▼

A cushion is composed of strips formed from resilient foam material, and these strips provide a displaceable surface which, when deformed, exerts a restoring force that is generally constant irrespective of the extent of the deformation. Thus, the cushion will apply a generally uniform supporting pr

A cushion is composed of strips formed from resilient foam material, and these strips provide a displaceable surface which, when deformed, exerts a restoring force that is generally constant irrespective of the extent of the deformation. Thus, the cushion will apply a generally uniform supporting pressure against an irregularly contoured body that is supported on it. Each strip is composed of a succession of arch-like segments. Moreover, the strips are arranged side-by-side with the arch-like segments of any strip being offset from the arch-like segments of the strips adjacent to it.

대표청구항 ▼

A cushion comprising: arch-like segments formed from a resilient material and arranged in a plurality of side-by-side rows such that each row possesses a generally undulated configurastion, each arch-like segment having a curved convex surface and a curved concave surface, as well as generally flat

A cushion comprising: arch-like segments formed from a resilient material and arranged in a plurality of side-by-side rows such that each row possesses a generally undulated configurastion, each arch-like segment having a curved convex surface and a curved concave surface, as well as generally flat side surfaces between the curved convex and concave surfaces, the arch-like segments of the rows being arranged such that the curved convex surfaces are presented in one direction and the curved concave surface are presented in the opposite direction and further such that side faces of the arch-like segments in adjacent rows face each other and are located in close proximity to each other, the arch-like segments of any one row being offset with respect to the arch-like segments of a row adjacent to that one row so that curved surfaces of the arch-like segments in the two rows do not align. A cushion comprising a plurality of strips which are located side-by-side and are formed from a resilient foam material, each strip having a front face which is presented toward the user of the cushion and a back face which is presented away from the user of the cushion and generally flat side faces extended between the front and back faces, the front and back faces of the strips being configured to provide a succession of arches along each strip with the arches being oriented to impart a generally undulated shape to each strip, the strips being positioned with the side faces of any one strip being close to and facing the side faces of the strips adjacent to that strip, and with such facing side faces being substantially detached from each other so that the strip does not significantly impede flexure of the strips adjacent to it and vice-versa, the strips also being positioned such that the arches on any one strip are offset with respect to the arches of the strips adjacent to that one strip, so that the arches of adjacent strips do not align across the cushion.