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WO2007068125A1 - Ensemble elevateur convertible - Google Patents

Ensemble elevateur convertible Download PDF

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Publication number
WO2007068125A1
WO2007068125A1 PCT/CA2006/002097 CA2006002097W WO2007068125A1 WO 2007068125 A1 WO2007068125 A1 WO 2007068125A1 CA 2006002097 W CA2006002097 W CA 2006002097W WO 2007068125 A1 WO2007068125 A1 WO 2007068125A1
Authority
WO
WIPO (PCT)
Prior art keywords
panels
stair
lift assembly
frame
side panels
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CA2006/002097
Other languages
English (en)
Inventor
Hong Lam
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thomson and Leonard
Original Assignee
Thomson and Leonard
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thomson and Leonard filed Critical Thomson and Leonard
Publication of WO2007068125A1 publication Critical patent/WO2007068125A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/06—Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces
    • B66B9/08—Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces associated with stairways, e.g. for transporting disabled persons
    • B66B9/0869—Collapsible stairways, e.g. operable between a lower level and an upper level
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G3/00—Ambulance aspects of vehicles; Vehicles with special provisions for transporting patients or disabled persons, or their personal conveyances, e.g. for facilitating access of, or for loading, wheelchairs
    • A61G3/02—Loading or unloading personal conveyances; Facilitating access of patients or disabled persons to, or exit from, vehicles
    • A61G3/06—Transfer using ramps, lifts or the like
    • A61G3/068—Transfer using ramps, lifts or the like in combination with folding stairs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G3/00—Ambulance aspects of vehicles; Vehicles with special provisions for transporting patients or disabled persons, or their personal conveyances, e.g. for facilitating access of, or for loading, wheelchairs
    • A61G3/02—Loading or unloading personal conveyances; Facilitating access of patients or disabled persons to, or exit from, vehicles
    • A61G3/06—Transfer using ramps, lifts or the like
    • A61G3/063—Transfer using ramps, lifts or the like using lifts separate from the vehicle, e.g. fixed on the pavement

Definitions

  • the present invention relates generally to the field of vertical lifts, and in particular, to lift mechanisms that convert to stairs.
  • Stairways employed in buildings and other structures present difficulties to non-ambulatory individuals.
  • a non-ambulatory individual confined to a personal vehicle such as a wheelchair cannot easily negotiate common stairwells.
  • separate elevator lifts, moving chair arrangements, or ramps are often provided.
  • stair structures extending a vertical distance that is less than a building story, such as those typically used near the entrance to a building a separate elevator lift is not always practical, particularly in outdoor environments.
  • separate ramps or moving chair arrangements may be provided which facilitate vertical travel by a personal vehicle.
  • suitable ramps consume relatively large amounts of space.
  • existing buildings must often be substantially altered to accommodate the installation of a ramp.
  • space constraints within or surrounding the building make installation of a ramp impossible.
  • Moving chair arrangements offer a solution in such low rise environments.
  • Moving chair arrangements comprise a chair that slides diagonally up and down the stairway. Such arrangements require that the personal vehicle be separately transported up or down the stairway. Because personal vehicles can be quite heavy, separate transport of the personal vehicle can be difficult. Moreover, the movable chair itself, when not in use, still occupies stairway space and thus dictates the appearance of the staircase.
  • Vecchio et al. shows a lift that is disposed directly in front of a low rise staircase that extends from a lower surface to an upper surface.
  • the lift provides vertical transport of wheelchairs from the lower surface to the level of the upper surface.
  • the stairs collapse upward to form a bridge platform that allows travel from the lift platform over the area normally occupied by the staircase to the destination upper surface.
  • U.S. Pat. No. 5,234,078 to Smith Another proposed design of a lift that may be located in a narrow environment is found in U.S. Pat. No. 5,234,078 to Smith.
  • a lift platform is located on the upper surface directly behind the ascending stairs. In other words, the lift platform forms a portion of the upper surface.
  • the lift platform provides transport between the upper surface and the lower surface through vertical movement.
  • the stairs collapse so that they too are substantially on the level of the lower surface.
  • the stairs reconfigure into a staircase.
  • a drawback of the designs found in the Del Vecchio et al. and Smith patents discussed above is that they require space equivalent to the area of the lift platform either completely in front of or completely behind the staircase. In some cases, such area is not available. Moreover, because the lift platform is located completely outside the footprint of the staircase, the lift platform creates a potentially displeasing architectural discontinuity with the surface at which it normally rests while not in operation. For example, as shown in FIG. 1 of the Smith patent, the lift structure requires special wall and floor structures that create visible discontinuities along the floor and wall. Likewise, the lift shown in the Del Vecchio et al. patent, undesirable creates a plainly visible discontinuity along the intersection of the platform and lower (ground) surface. Such discontinuities significantly affect the appearance of an architectural structure.
  • the present invention fulfills the above need, as well as others, by providing a convertible lift assembly that provides a raisable frame that moves within a space defined by two moveable side panels.
  • the side panels When the side panels are moved towards one another, they provide resting points, in a stair-like shape, that each collect one of a series of flat stair panels that act as steps when the raisable frame is lowered.
  • the raisable frame When the raisable frame is raised, it again collects the stair panels from the resting points, so that they provide a horizontally flat platform.
  • the raisable frame When the side panels are moved away from each other, the raisable frame can be raised and lowered without the stair panels meeting with their respective resting points.
  • the flat platform remains intact as a flat platform as the raisable frame is raised and lowered.
  • the convertible lift assembly of the present invention includes a flat, raisable platform that occupies the space that is otherwise occupied by the staircase, and therefore requires little or no additional space.
  • the present invention provides a convertible lift assembly comprising; a raisable frame which can be moved between a raised and lowered position; a flat platform resting on said raisable frame when said raisable frame is in said raised position, and wherein said flat platform comprises at least two stair panels; a first side panel and a second side panel, with at least one of said first or second side panels being moveable between an extended position, to a contracted position, by movement of at least one side panel towards or away from said second side panel; a first motive device for movement of said raisable frame; a second motive device for movement of at least one side panel; a support structure for supporting said raisable frame, said side panels and said first and second motive devices; and, a plurality of resting points on said side panels on which said stair panels rest when said raisable platform is lowered while said side panels are in said contracted position, wherein said stair panels have a length which is less than the distance between corresponding resting points on said side panels when said side panels are in said extended position, wherein said
  • both side panels are each movable towards or away from one another.
  • the essentially flat stair panels rest on the raisable frame in an essentially horizontally flat platform configuration, when the side panels are in their extended position.
  • the raisable frame can be raised and lowered and the stair panels will remain flat on the raisable frame since they do not interact with the side panels.
  • the raisable frame when the raisable frame is in its raised position, at least one, and more preferably both, side panels can be moved towards each other in order to be positioned in a contracted position. In this position, the raisable frame is still able to be lowered between the side panels, but the stair panels will be caught by, and come to rest on, the resting points that are provided on the side panels. This prevents the stair panel from being lowered further. As such, the stair panel will become separated from the raisable frame. When the raisable frame is completely lowered, one or more stair panels will remain on the side panel resting points in a stair-like configuration.
  • the stairs can then be used in a normal fashion while in this configuration.
  • the raisable frame is moved to a raised position in order to collect all of the stair panels off of their resting points, and again establish an essentially flat horizontal platform. With the stair panels off of the side panels, the side panels can then be returned to their extended position. The platform can then be used as previously described.
  • the raisable platform and moveable side panels are moved by an appropriate first or second motive forces. This is typically achieved through the use of at least one electric motor, although other motorized power sources, as motive forces, can be utilized, as will be clear to those skilled in the art.
  • Figure 1 is a perspective view of an embodiment of the present invention wherein it is in a raised platform configuration
  • Figure 2 is a side view of a side panel used in the embodiment of Fig. 1 ;
  • Figure 3 is a. perspective view of the raisable frame together with cut-away view of the stair panels;
  • Figure 4A to Figure 4D are a series of front views showing the movement of the side panels and the raisable frame;
  • Figure 5 is a perspective view of the embodiment of Fig. 1 in a stair configuration
  • Figure 6 is a front view of an alternative arrangement of the stair panels; and Figures 7 A and 7B shown a ramp section fitted to the front of the frame.
  • a convertible lift assembly 10 having a base 16, two side modules 12 and two end modules 14, which are located on either side of base
  • stair panels 20, 22, 24 and 26 are arranged between end modules 14 and between side modules 12 which in this configuration form a flat platform level with, and adjacent to stationary platform 28. Panels 20, 22, 24 and 26 all rest on a frame 40, which frame 40 is capable of movement up or down in response from input from either of controllers 60.
  • a movable side panel 18 On the interior side of side modules 12 is a movable side panel 18 having stair panel resting points 30, 32, 34 and 36, as shown in Figure 2 which is a side view of one side panel 18.
  • the side panel 18 on the opposite side of assembly 10 will be a mirror image of this side panel.
  • Resting points 30, 32, 34 and 36 correspond with, and are positioned to operatively mate with stair panels 20, 22, 24 and 26 respectively. Resting points 30, 32, 34 and 36 correspond with, and are positioned to operatively mate with stair panels 20, 22, 24 and 26 respectively. Resting points 30, 32, 34 and 36 correspond with, and are positioned to operatively mate with stair panels 20, 22, 24 and 26 respectively. Resting points 30, 32, 34 and 36 correspond with, and are positioned to operatively mate with stair panels 20, 22, 24 and 26 respectively. Resting points 30, 32,
  • bolt holes 38 are provided for each resting point, and these bolt holes 38, for a particular resting point, are vertically aligned so that they, and the respective resting point, will be positioned in the same relative position with respect to the stair panel.
  • the resting points can be used, such as rectangular, square, triangular, or circular can be used to fit into a corresponding flat, triangular or circular portion at the edge of the stair panels.
  • the resting points can be a collection of pins extending from the side panels.
  • the T-shaped configuration is a preferred arrangement since it provides adequate strength properties, together with ease of attachment.
  • side panels 18 are preferably solid panels, they can be replaced with a frame structure that moves the resting points closer together or apart as necessary.
  • side panels 18 can be a series of solenoids that merely move resting points 30, 32, 34 and 36 to their contracted or extended position.
  • the sold panel configuration shown in Figure 2 is preferred.
  • convertible lift assembly 10 is shown with 4 movable stair panels, however, those skilled in the art will readily appreciate that any number of movable stair panels can be provided in order to produce the desired number of stairs, when the assembly is used in the stair configuration.
  • the number of stairs provided is between 1 and 10, and more preferably between 2 and 5.
  • the present design is adaptable to provide a reduced number of stairs in configurations wherein fewer stairs are required. For example, resting points 30 and 32 might be removed altogether, and resting points 34 and 36 lowered to provide a two stair configuration. During installation of assembly 10, stationary platform 28 would be lowered as necessary to be adjacent to panel 26 when it was resting on frame 40 in the raised position.
  • Frame 40 is shown in Figure 3 comprising 2 side rails 42, with 3 cross members 44, 46 and 48.
  • frame 40 is narrower than the width of stair panels 20, 22, 24 and 26 for the correct operation of the device.
  • the design of frame 40 can vary depending on the intended application, or the like.
  • frame 40 can be manufactured wider than shown in the drawings, and having gaps, channels, spaces or the like, through which the various resting points can pass as the frame is raised or lowered.
  • Frame 40 is connected to a motor (not shown) capable of raising or lowering the frame with the additional weight from, or that has been placed on, stair panels 20, 22, 24 and 26.
  • the motor can be, for example, placed between end modules 14, and under stationary platform 28, and can be operatively connected to frame 40 by attachment to, for example frame cross member 48, or the like.
  • connection of frame 40 to the motor can be achieved in a number of different fashions known to those skilled in the art, but the connection must sufficiently strong than frame 40 can be raised and lowered in an essentially flat orientation, without excessive bending of frame 40.
  • the operational details of the various moving components of convertible lift assembly 10 are shown in Figures 4 A to 4D.
  • Side panels 18 are in an extended position wherein they are positioned within side modules 12. Resting points 30, 32, 34 and 36 can be seen, but it is to be noted that the distance between corresponding resting points 30, 32, 34 and 36 is greater than the length of stair panels 20, 22, 24 and 26. From this configuration, frame 40 can be lowered, in response to a command from either upper or lower controller 60 to the position shown in Figure 4B wherein frame 40 is essentially resting on base 16 so that stair panels 20, 22, 24 and 26 are essentially level with the ground, or level with a small ramp (not shown) to facilitate entry and/or exit from assembly 10.
  • the user In use, in the configuration, the user is able to, for example, roll a wheelchair onto the platform formed by stair panels 20, 22, 24 and 26, and the platform can be raised or lowered, depending on the desired action.
  • the platform will be raised or lowered as a flat platform, and the user will be able to exit the assembly in the raised or lowered configuration.
  • Various safety features can be provided such as side bar, hand rails, end bars, or the like to prevent accidental movement of the user as the platform is raised or lowered, or to prevent the user from accidentally rolling or falling over the end of the raised platform.
  • raisable frame 40 and all stair panels are moved to a raised position.
  • Side panels 18 are then moved, by a motorized device for example, to a contracted position wherein they protrude inwardly from side modules 12.
  • the distance between most of side panels 18 is greater than the length of stair panels 20, 22, 24 and 26.
  • the distance between corresponding resting points 30, 32, 34 and 36 is now less than the length of stair panels 20, 22, 24 and 26.
  • the width of frame 40 is less than the distance between resting points 30, 32, 34 and 36 so that frame 40 is able to move up and down without interference from any resting points 30, 32, 34 and 36.
  • frame 40 is raised using a motorized power source and as it is raised, collects stair panels 20, 22, 24 and 26, in that order, in order to re-create the flat platform resting on frame 40.
  • side panels 18 are moved to their extended position so that frame 40 can be raised and lowered and stair panels 20, 22, 24 and 26 will again remain on frame 40.
  • the essentially flat horizontal platform can then be used as previously described.
  • safety interlocks to prevent side panels 18 from being moved unless frame 40 is in a raised position.
  • locking mechanisms such as protruding pins on resting points 30, 32, 34 and 36 can be provided that extend into corresponding holes on stair panels 20, 22, 24 and 26 so as to prevent the stair panels from moving.
  • Electronic sensors can be provided to ensure that the pins are in place when the convertible lift assembly is in the stair configuration.
  • FIG. 6 an alternative arrangement for the stair panels is provided and these panels are designated as panels 2OA and 22A. These stair panels are essentially flat in their central area, but have a raised side section 50 which rests on the resting points. However, when the stair panels 2OA and the like are all positioned on frame 40 in the platform configuration, raised side sections 50 provide a side ledge to prevent accidental movement of a user, or a wheelchair, or the like, off the side of the platform.
  • face plates 62 can be provided which are attached to the front surface of any or all stairs panels to reduce access to the area under the stairs, or to provide a cleaner appearance to while in the stair configuration. These face plates 62 are positioned to as to side into frame 40 as it is being raised or lowered, and not otherwise interfere with the operation of the convertible lift assembly.
  • Further frame 40 can be equipped with a movable ramp section 64, shown in Figure 7A which can be moved, by a suitable additional motive force, to a raised position to prevent a user from accidentally moving off of the platform, when the platform is above ground level, and moved to a lowered position shown in Figure 7B which will act as a small ramp, to facilitate entry of a wheelchair, for example, onto the platform when the frame 40 is in a lowered position.
  • a movable ramp section 64 shown in Figure 7A which can be moved, by a suitable additional motive force, to a raised position to prevent a user from accidentally moving off of the platform, when the platform is above ground level, and moved to a lowered position shown in Figure 7B which will act as a small ramp, to facilitate entry of a wheelchair, for example, onto the platform when the frame 40 is in a lowered position.
  • the present invention also provides an improved method for lifting a person or an object, such as a wheelchair or other personal vehicle, from a lower surface to an upper surface, using the device of the present invention.
  • the prior art solutions required a substantial amount of additional space to provide facilities for non-ambulatory persons. Not only were the additional space requirements difficult and some times impossible to accommodate at all, even when accommodation was possible, the prior art devices often required alteration of the architectural structure of a facility.
  • the method and apparatus of the present invention employs the same footprint for both the stairs and the alternative facilities by converting one or more stairs to a lift platform. The resulting structure has the advantage of requiring substantially less space.
  • the motorized power sources and the linkages used to move the side panels or the raisable frame have not been detailed in the present application. While the source of motorized power sources in the above described embodiment is preferably one or more electric motors, other forms of motive power may be employed.
  • these include systems such as a hydraulic lift system power source, a pneumatic piston system power source, and the like.
  • combinations of any of these motorized power sources can be utilized, or, through the selection of appropriate linkages and the like, a single motor can act as both the first and second motive power sources.
  • a single motor can act as both the first and second motive power sources.
  • the word “comprise” and variations of the word such as “comprising” and “comprises”, when used in the description and claims of the present specification, is not intended to exclude other additives, components, integers or steps.
  • the words “substantially” or “essentially”, when used with an adjective or adverb is intended to enhance the scope of the particular characteristic; e.g., “substantially planar”, or “essentially planar” is intended to mean planar, nearly planar and/or exhibiting characteristics associated with a planar element.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Structural Engineering (AREA)
  • Types And Forms Of Lifts (AREA)

Abstract

La présente invention concerne un ensemble élévateur convertible permettant de convertir de façon réversible en marches d'escalier un élévateur vertical. L'ensemble de l'invention, qui prend moins de place que les systèmes existants, utilise un jeu de panneaux latéraux mobiles pouvant se contracter ou se déployer pour constituer des points d'appui pour une série de panneaux de marches. En position contractée, les panneaux latéraux constituent des points d'appui pour une configuration en escalier des panneaux de marches. En position déployée, les panneaux de marches sont réunis sur un châssis pour constituer une plate-forme horizontale sensiblement plate pouvant monter ou descendre sur un châssis mobile.
PCT/CA2006/002097 2005-12-16 2006-12-18 Ensemble elevateur convertible Ceased WO2007068125A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002530552A CA2530552A1 (fr) 2005-12-16 2005-12-16 Dispositif de levage convertible
CA2,530,552 2005-12-16

Publications (1)

Publication Number Publication Date
WO2007068125A1 true WO2007068125A1 (fr) 2007-06-21

Family

ID=38162370

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2006/002097 Ceased WO2007068125A1 (fr) 2005-12-16 2006-12-18 Ensemble elevateur convertible

Country Status (2)

Country Link
CA (1) CA2530552A1 (fr)
WO (1) WO2007068125A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2474584A (en) * 2009-10-19 2011-04-20 Manuel Cerda Martinez Collapsible stairs and lift arrangement for use by disabled persons
KR102276299B1 (ko) * 2020-11-05 2021-07-12 이준식 계단 겸용 리프트 장치
CN115539115A (zh) * 2022-09-14 2022-12-30 中铁第四勘察设计院集团有限公司 一种疏散平台结构

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013091097A1 (fr) * 2011-12-23 2013-06-27 British Columbia Institute Of Technology Ensemble escalier à levage
DE102018123200A1 (de) * 2018-09-20 2020-03-26 Bombardier Transportation Gmbh Vorrichtung und Verfahren zum Überwinden einer Höhendifferenz und Schienenfahrzeug mit der Vorrichtung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2138779A1 (fr) * 1992-06-24 1994-01-06 Vigbjorn Matre Escalier avec monte-personne
FR2723578A1 (fr) * 1994-08-10 1996-02-16 Brunel Michel Jean Dispositif pour faire franchir une denivellation notamment a un handicape moteur
WO1996023723A1 (fr) * 1993-07-28 1996-08-08 Atitud Dispositif de marches elevatrices
WO1998051604A1 (fr) * 1997-05-12 1998-11-19 Friedman, Mark, M. Dispositif physiotherapeutique
CA2265639A1 (fr) * 1997-07-14 1999-01-21 Vertical Mobility, Llc Mecanisme elevateur convertible
DE202004011686U1 (de) * 2004-07-26 2004-09-30 Mettenmeyer, Reinhold Hebevorrichtung für Rollstühle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2138779A1 (fr) * 1992-06-24 1994-01-06 Vigbjorn Matre Escalier avec monte-personne
WO1996023723A1 (fr) * 1993-07-28 1996-08-08 Atitud Dispositif de marches elevatrices
FR2723578A1 (fr) * 1994-08-10 1996-02-16 Brunel Michel Jean Dispositif pour faire franchir une denivellation notamment a un handicape moteur
WO1998051604A1 (fr) * 1997-05-12 1998-11-19 Friedman, Mark, M. Dispositif physiotherapeutique
CA2265639A1 (fr) * 1997-07-14 1999-01-21 Vertical Mobility, Llc Mecanisme elevateur convertible
DE202004011686U1 (de) * 2004-07-26 2004-09-30 Mettenmeyer, Reinhold Hebevorrichtung für Rollstühle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2474584A (en) * 2009-10-19 2011-04-20 Manuel Cerda Martinez Collapsible stairs and lift arrangement for use by disabled persons
KR102276299B1 (ko) * 2020-11-05 2021-07-12 이준식 계단 겸용 리프트 장치
CN115539115A (zh) * 2022-09-14 2022-12-30 中铁第四勘察设计院集团有限公司 一种疏散平台结构

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