EP0732296A2 - Hebebühne - Google Patents

Hebebühne Download PDF

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Publication number
EP0732296A2
EP0732296A2 EP96301632A EP96301632A EP0732296A2 EP 0732296 A2 EP0732296 A2 EP 0732296A2 EP 96301632 A EP96301632 A EP 96301632A EP 96301632 A EP96301632 A EP 96301632A EP 0732296 A2 EP0732296 A2 EP 0732296A2
Authority
EP
European Patent Office
Prior art keywords
platform
lift
base
parallelogram
platform lift
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.)
Withdrawn
Application number
EP96301632A
Other languages
English (en)
French (fr)
Other versions
EP0732296A3 (de
Inventor
John Edward Ratcliff
Robin Vincent Baker
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.)
RATCLIFF GROUP Ltd
Planet Fabrications Ltd
Original Assignee
RATCLIFF GROUP Ltd
Planet Fabrications Ltd
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 RATCLIFF GROUP Ltd, Planet Fabrications Ltd filed Critical RATCLIFF GROUP Ltd
Publication of EP0732296A2 publication Critical patent/EP0732296A2/de
Publication of EP0732296A3 publication Critical patent/EP0732296A3/de
Withdrawn legal-status Critical Current

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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
    • B66B9/0853—Lifting platforms, e.g. constructional features
    • 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 invention relates to improvements in platform lifts which can be used to raise a load, such as a handicapped person in a wheelchair, to a higher level.
  • a number of lifts have been devised which lift passengers or loads through changes in level to avoid the need to mount steps. These generally comprise low rise vertical lifting platforms.
  • the main problem with such lifts is the need to bridge the horizontal gap between the edges of the platform and the top step. This can be done with a hinged bridge plate, but such a plate tends to obstruct normal use of the steps.
  • a series of lifting bridge plates can be installed, with one on each step. The plates are picked up by the platform as it rises.
  • a platform lift comprising a base, a substantially horizontal platform, said platform providing a through path for both vehicles and pedestrians, said platform being located above and attached to said base by means of an operating mechanism comprising a radial linkage and associated drive means, which platform is movable from a first position to a second position in a substantially arcuate path by means of said operating mechanism, the first and second positions being vertically separated and the platform extending forwardly from the base as it is raised from the first to the second position.
  • the radial linkage comprises at least one deformable parallelogram comprising a base, a pair of side arms each of which is pivotally connected at one end to the base and at another end to a fourth arm attached to the platform, in which drive means comprise extensible actuator means which are pivotally connected at one end to a moveable part of the lift and at another end to a fixed point, such that as the actuator means extends or contracts the parallelogram is caused to deform to raise or lower the platform.
  • the lift 10 is located adjacent a step or set of steps 22.
  • the lift 10 comprises a platform 11 which is sufficiently wide to receive a wheelchair or any other load to be raised.
  • the platform 11 may have side walls 12 to guide the wheelchair into position and hand rails 13 for the wheelchair or other user to hold on to during the lifting operation.
  • the side walls 12 may also act as load supporting shear panels.
  • the lift 10 is provided with a ramp 14 attached to the platform 11 on an opposite side of the platform 11 to the steps 22 to enable a smooth entry and exit from the platform 11 at ground level.
  • the lift 10 is mounted on a base 15.
  • the base 15 is affixed to the ground adjacent the steps 22.
  • the platform 11 is attached to the base 15 by means of at least one deformable parallelogram arrangement.
  • the parallelogram comprises a lower arm 18 which is affixed to or forms part of the base 15 and a pair of pivoting side arms 19 attached at one of their ends to the lower arm 18 and at their other ends to the platform 11.
  • a section of the platform 11 itself may constitute the fourth arm of the parallelogram or a separate arm may be attached to the platform 11.
  • the connections between the arms 18, 19 and the platform 11 is pivotal.
  • a parallelogram is provided on opposite sides of the platform.
  • Actuators 20 may be provided on just one or both sides of the platform 11. Power means are provided which cause the actuator 20 to extend and contract.
  • actuators is intended to cover hydraulic jacks, electric actuators or any other powered means capable of extending and contracting.
  • a synchronising link may be provided between one or both pairs of side arms of the parallelogram.
  • the actuator 20 When the lift 10 is in its lowered position, the actuator 20 is contracted and the parallelogram is in a flattened or obtuse angled state.
  • the platform 11 is thus positioned at ground level.
  • a wheelchair user can roll himself up the ramp 14 onto the platform 11 or any other type of load placed on the platform 11.
  • the power means are operable either by the lift user which actuates the actuator 20 so that it extends. As it extends, it pushes the side arm 19 to which it is attached from a substantially horizontal position through approximately 90° to a substantially vertical position as shown in Figure 4.
  • the parallelogram moves from its obtuse angled state to a generally right angled state, without the need for the side arms 19 to pass the vertical position.
  • the platform 11 thus swings in a continuous arc from its ground level position at the foot of the steps 22 to a raised position adjacent the top of the steps 22 so that the wheelchair user or load can roll or be rolled/lifted off the platform 11 onto the top of the steps 22.
  • the power means are actuated which cause the hydraulic actuator 20 to contract.
  • the parallelogram is pulled sideways into an obtuse or flattened state and the platform 11 is lowered.
  • the wheelchair user or load can roll or be rolled/lifted off the platform 11 at ground level.
  • the actuator 20 is described as being attached between a side arm of the parallelogram and the base plate 15, it may be attached at any other points such that the parallelogram can be caused to deform in the required manner e.g. to the base plate and the platform, to a side arm and a step etc.
  • the use of a single acting hydraulic actuator means that the lift can be lowered, under gravity in the case of power failure.
  • the platform 11 may be attached to the side arms 1a by means of fixed or removable pins or other suitable fixing means.
  • the fourth arm or sides of the platform 11 maybe provided with a series of vertical holes so that the side arms 19 may be attached with removable fixings or spigots located on the side arms at different vertical positions. This means that the platform 11 height may be varied to suit different applications without having to change the stroke of the actuator.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Structural Engineering (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Handcart (AREA)
EP96301632A 1995-03-13 1996-03-11 Hebebühne Withdrawn EP0732296A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9505020 1995-03-13
GBGB9505020.9A GB9505020D0 (en) 1995-03-13 1995-03-13 Improvements in platform lifts

Publications (2)

Publication Number Publication Date
EP0732296A2 true EP0732296A2 (de) 1996-09-18
EP0732296A3 EP0732296A3 (de) 1998-01-28

Family

ID=10771114

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96301632A Withdrawn EP0732296A3 (de) 1995-03-13 1996-03-11 Hebebühne

Country Status (3)

Country Link
EP (1) EP0732296A3 (de)
CA (1) CA2171665A1 (de)
GB (1) GB9505020D0 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1250903A2 (de) * 2001-02-08 2002-10-23 Harald Baecker Parallel-Hubbühne für Behinderte
WO2013000098A1 (de) * 2011-06-30 2013-01-03 Mueller Peter A Schwenklift

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2202803C (en) * 1997-04-16 2006-06-06 Roger Taylor Variable-incline ramp system for horizontal vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3229788A (en) * 1963-06-25 1966-01-18 Welded Products Inc Invalid elevator
CA1084454A (en) * 1978-10-31 1980-08-26 John C. Kingston Mechanism for transfer of wheelchair confined passengers to and from railway coaches at railway station platforms
US4273498A (en) * 1979-11-07 1981-06-16 The Budd Company Railway car trap door lift
DE3922511A1 (de) * 1989-07-08 1991-01-17 Kaessbohrer Fahrzeug Karl Hebevorrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3229788A (en) * 1963-06-25 1966-01-18 Welded Products Inc Invalid elevator
CA1084454A (en) * 1978-10-31 1980-08-26 John C. Kingston Mechanism for transfer of wheelchair confined passengers to and from railway coaches at railway station platforms
US4273498A (en) * 1979-11-07 1981-06-16 The Budd Company Railway car trap door lift
DE3922511A1 (de) * 1989-07-08 1991-01-17 Kaessbohrer Fahrzeug Karl Hebevorrichtung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1250903A2 (de) * 2001-02-08 2002-10-23 Harald Baecker Parallel-Hubbühne für Behinderte
EP1250903A3 (de) * 2001-02-08 2003-09-10 Harald Baecker Parallel-Hubbühne für Behinderte
WO2013000098A1 (de) * 2011-06-30 2013-01-03 Mueller Peter A Schwenklift

Also Published As

Publication number Publication date
CA2171665A1 (en) 1996-09-14
GB9505020D0 (en) 1995-05-03
EP0732296A3 (de) 1998-01-28

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