Elevating device for a staircase

B - Operations – Transporting – 66 – B

Patent

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Details

B66B 21/02 (2006.01) B66B 9/04 (2006.01) B66B 9/08 (2006.01) B66B 23/12 (2006.01) B66F 7/28 (2006.01) E04F 11/00 (2006.01) E04F 11/04 (2006.01)

Patent

CA 2661101

An elevating system is provided for installation on a staircase, comprising a plurality of lifting elements capable of vertical expansion and contraction between lowered and elevated positions to sequentially elevate or lower a user. Each lifting element comprises a platform, inflatable bladders to selectively elevate or lower the platform, a guide to prevent lateral movement of said platform, a sensor responsive to the presence of an individual on said platform, and valves to selectively inflate or deflate said bladders. The platforms are sequentially elevated or depressed to permit the user to travel up or down said staircase by stepping horizontally from one lifting element to a next in line lifting element.

L'invention concerne un système de levage pour escalier. Le système comprend une pluralité d'éléments de levage capables d'assurer une expansion verticale et une contraction, en passant de la position abaissée à la position soulevée pour soulever ou abaisser séquentiellement un utilisateur. Chaque élément de levage comprend une plateforme, des sacs gonflables pour soulever ou abaisser la plateforme, un guide pour prévenir le mouvement latéral de ladite plateforme, un capteur réceptif à la présence d'une personne sur ladite plateforme et des soupapes pour gonfler ou dégonfler sélectivement les sacs gonflables. Les plateformes sont séquentiellement élevées ou abaissées pour permettre à l'utilisateur de monter ou descendre ledit escalier en passant horizontalement d'un élément de levage à l'autre élément de levage de la succession.

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