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Stair lift

  • US 9,457,992 B2
  • Filed: 12/11/2012
  • Issued: 10/04/2016
  • Est. Priority Date: 12/13/2011
  • Status: Active Grant
First Claim
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1. A device, for conveying a person from a first level to a second level, comprising:

  • a rail which extends between the first and the second level;

    a frame which is provided with engaging means designed to engage the rail in such a manner that the frame can be moved along the rail;

    driving means designed to cause the frame to move along the rail;

    a support, on which the person can be seated;

    control means designed to activate the driving means,wherein the control means comprise at least one touch-sensitive surface sensitive to a contact point made by the person upon touching the touch-sensitive surface, said control means being able to determine a location of the contact point on said touch sensitive surface, which surface extends or can be arranged to extend such that a person can rest his or her hand, or a part thereof, on the surface,wherein a portion of the said touch-sensitive surface is designated as a predetermined part of the surface,wherein the control means are configured to activate the driving means and cause the frame to move along the rail when the control means determine when the hand of the person, or a part thereof, makes a specified movement on the touch-sensitive surface, wherein the specified movement is a movement made by the hand of the person, or a part thereof, to move an image displayed on the touch-sensitive surface, andwherein the control means are configured to activate the driving means and cause the frame to move along the rail as long as the hand, or a part thereof, maintains contact on the predetermined part of the surface and to deactivate the driving means when the control means determine that the hand, or a part thereof, is no longer in contact with the predetermined part of the surface.

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