Element de literie.

Cushion with partly inflatable flexible film level pref. polyethylene - to vary periodically the position of supporting pressures on an immobile sitter

  • Inventors:
  • Assignees: Delooper Pauline
  • Publication Date: November 18, 1985
  • Publication Number: BE-902927-A

Abstract

A seat comprises an elastic cushion with a forced ventilation system for periodic inflation of one or more impermeable pockets of flexible film which bridge undulations in the surface profile of the cushion. The user is thus supported alternately on either the crests of the inflated pockets or on the crests of the base cushion when the impermeable pocket is deflated. Pref. the body of the cushion is of expanded polyurethane with a cover of polyethylene film, the pocket being defined by a second layer of polyethylene film over an undulation of annular or spiral form.
Elément de literie constitué par un moule de mousse de polyuréthane et un jeu de gaines tubulaires en polyéthylène gonflables (7), formant un coussin en forme de couronne. La combinaison des deux éléments permet une alternance des points de compression des chaires de la personne reposant sur la coussin, grace à l'action d'une pompe aspirante-refoulante (8) laquelle permet en outre l'arrivée d'air (11) dans le centre vide (10) de ce coussin.

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