Stairs adaptable for use by disabled persons

Abstract

Especially designed to allow the wheelchairs in which disabled persons move to pass from a lower level to a higher level and vice-versa, although it is also valid for mothers, with trolleys whether of babies, shopping, etc. or for any other similar application; the stairs have steps which can move upward and/or downward to be positioned coplanarly and establish a platform, whereto the disabled person's wheelchair can directly access, allowing this by horizontal raising and/or lowering of this platform to pass from one floor level to another. For this purpose, it is provided that each step is supported by a scissor structure, associated to a mechanism, preferably formed by a motor and a spindle, making it possible to simultaneously raise and/or lower, and in controlled fashion, all the steps to form the platform of direct access of the disabled person's chair.

1 . Stairs adaptable for use by disabled persons, which is provided to allow wheelchairs wherein disabled persons move may pass from a lower level to a higher level and vice-versa, levels that are interlinked by the stairs, which have steps able to move upward and/or downward to be positioned coplanarly and establish a platform the chair of a disabled person can directly access, this allowing, due to horizontal raising and/or lowering of this platform, the passage of one level to another of floors, characterized in that each step is supported by a scissor structure, in each case, associated to a mechanism preferably constituted by a motor and a spindle, making it possible to simultaneously raise and/or lower, and in controlled fashion, all the steps to form the platform of direct access of the disabled person's chair. 
     
     
         2 . Stairs adaptable for use by disabled persons, according to  claim 1 , characterized in that the actuation mechanism of each step can be formed by pneumatic and/or hydraulic elements. 
     
     
         3 . Stairs adaptable for use by disabled persons, according to  claim 1 , characterized in that the actuation mechanism of each step can be formed by pneumatic and/or hydraulic elements. 
     
     
         4 . Stairs adaptable for use by disabled persons, according to  claim 1 , characterized in that it incorporates an articulated safety handrail.