EP0793614B1 - Chaise-ascenseur - Google Patents

Chaise-ascenseur Download PDF

Info

Publication number
EP0793614B1
EP0793614B1 EP95937219A EP95937219A EP0793614B1 EP 0793614 B1 EP0793614 B1 EP 0793614B1 EP 95937219 A EP95937219 A EP 95937219A EP 95937219 A EP95937219 A EP 95937219A EP 0793614 B1 EP0793614 B1 EP 0793614B1
Authority
EP
European Patent Office
Prior art keywords
stairlift
support
freedom
main frame
chair
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.)
Expired - Lifetime
Application number
EP95937219A
Other languages
German (de)
English (en)
Other versions
EP0793614A1 (fr
Inventor
Evert Jan Lammers
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.)
Traplift BV
Original Assignee
Traplift BV
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 Traplift BV filed Critical Traplift BV
Publication of EP0793614A1 publication Critical patent/EP0793614A1/fr
Application granted granted Critical
Publication of EP0793614B1 publication Critical patent/EP0793614B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B66B9/0838—Levelling gears

Definitions

  • the invention relates to a stairlift, comprising:
  • Such a stairlift is e.g. known from EP-A-0 560 433.
  • the prior art stairlift is provided with leveling means which are embodied as a curve disc and a follower cam associated therewith.
  • the curve urges the follower to follow a specific path with double sided control.
  • the follower is associated with adjusting means for the angular position relative to a horizontal of the chair carried by the support. The information contained in the curve exactly corresponds with the specific anticipated angular position changes inherent to the specific arrangement and shape of the support rail.
  • the prior art system does not allow any change or adaptation to a different situation. Furthermore, the prior art system allows only for correction of the angular position of a chair in one single degree of freedom. Thus, the prior art system does not allow corrections in any of the two remaining degrees of freedom. Due to this lack of ability for correction it cannot basically be avoided that the chair during its path along the support rail is subject to undesired angular deviations that cannot be compensated for.
  • Such a stairlift can have the special feature that the first rotation degree of freedom is intended for up and downward pivoting of the support on a first, at least more or less horizontally extending axis.
  • This first axis can advantageously extend in a plane which coincides with, or is located a short distance from, the main plane of the seat of a chair or wheelchair.
  • Another special feature of the stairlift can lie in the fact that the second rotation degree of freedom is intended for pivoting the support round a second axis extending substantially transversely of the rail and at least more or less in horizontal direction.
  • This second axis will preferably extend in the median plane of a chair or wheelchair and extend in the main plane of the seat or at a distance thereunder.
  • the stairlift is further embodied such that it is able to displace in the translation degree of freedom such that a user effectively avoids contact with obstacles.
  • Such an embodiment can display the feature that the translation degree of freedom is intended for moving the support up and downward.
  • the stairlift is preferably provided with a battery.
  • This battery is arranged for example on the main frame or the chair, in any case is movable together with the stairlift.
  • the use of cables or drag connections is hereby avoided.
  • the embodiment is recommended in which on at least one end of the support rail is placed a terminal of a charging device which can co-act with a complementary terminal which is present on the stairlift and which is connected to the battery for charging the battery in the coupled state of said terminals.
  • a practical embodiment displays the special feature that the first electric motor drives a toothed wheel which can co-act with a toothing arranged on the support rail, for instance a cardan fixed chain supported thereby.
  • a cardan fixed chain offers the option of following not only variations of angle in a vertical plane but also variations of angle in a horizontal plane.
  • the stairlift is preferably provided with a central control unit for operating by a user.
  • a central control unit for operating by a user.
  • use can be made for example of a control unit bearing a plurality of control buttons which is arranged in an arm of the chair.
  • the stairlift preferably has the special feature that the central control unit is of the self-learning type.
  • This latter embodiment has the advantage that the position adjustment in each of the three degrees of freedom does not have to be programmed in advance depending on the current position of the stairlift, but that through a learning process these positions for a given path of the support rail are automatically followed by the system.
  • the learning phase it can for example be ensured by external means that during use the chair is situated in each position along the path such that the seat is for instance situated in a substantially horizontal position or displays a selected variation therefrom.
  • a suitable position can be programmed for stepping in and out at both end locations.
  • Figure 1 shows a staircase 1 consisting of a plurality of parts, which is bounded on one side by walls 2.
  • a support rail 4 consisting of segments is fixed to these walls by means of support bolts 3.
  • this support rail 4 is further supported by supports 5 which rest with joint foot plates 6 on the treads 7 of the staircase.
  • the stairlift carries a chair 8 with a seat 9 and a back 10, and a footrest 11 supported by the seat.
  • the chair is supported such that it is movable in three degrees of freedom.
  • the first degree of freedom is a rotation degree of freedom, which is indicated with reference numeral 12.
  • the chair 8 is pivotable up and downward round an axis 13.
  • the chair 8 In a second rotation degree of freedom 14 the chair 8 is pivotable round an axis 15.
  • a translation the chair 8 is movable up and downward. This movement is not strictly vertical but has a vertical component. This degree of freedom is designated in the drawing with the reference numeral 16.
  • the position of the support rail 4 is greatly variable along its length.
  • the three degrees of freedom of the stairlift according to the invention enable full adaptation thereof.
  • the position variations of the chair 9 are compensated by the rotation degrees of freedom 12 and 14, while the height adjustment is provided by the third degree of freedom 16. This may for instance be necessary to avoid contact between the head of a user and a relatively low ceiling edge 17.
  • FIG. 2 shows that the support rail 4 is open on the underside and supports a cardan linked chain 18.
  • this chain can co-act with a toothed wheel 20 which is driven by an electric motor 22 via a worm transmission 21.
  • This electric motor 22 is of a relatively heavy type, since it must be capable of carrying the entire weight of a user and the stairlift 19 upward along the support rail 4.
  • the motor 22 is supported by a main frame 23 which is rollable along support rail 4 by means of rollers generally designated 24.
  • the main frame 23 supports via an axis 13 an auxiliary frame 25 by means of an electric motor 26 which can drive a threaded spindle 27 and the position of auxiliary frame 25 is adjustable relative to the main frame 23.
  • the spindle 27 co-acts with a tube 28 provided with internal thread which co-acts pivotally with a bracket 29 which is connected to an auxiliary frame 25 via sliding rods 30,31.
  • the sliding rods 30,31 serve for slidable guiding of a support block 32 which bears a support shaft 33 rotatably round an axis 15.
  • Supports 34 for the chair 8 are connected to support shaft 33.
  • To the support shaft 33 is connected a toothed bracket 35 which co-acts with a toothed wheel driven by an electric motor 36. By driving the motor 36 the chair 8 can be pivoted round the axis 15.
  • the folding arm-rest 38 carries a control panel 39.
  • Figure 1 shows that a terminal 40 is fixed to the seat of the chair which can co-act with terminals 41,42 of a charging device arranged at the ends of the support rail.
  • the batteries can hereby be recharged in the end positions of the stairlift.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Structural Engineering (AREA)
  • Types And Forms Of Lifts (AREA)
  • Control Of Eletrric Generators (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Control Of Stepping Motors (AREA)
  • Handcart (AREA)
  • Magnetic Heads (AREA)
  • Valve Device For Special Equipments (AREA)

Claims (11)

  1. Ascenseur d'escalier comprenant :
    un châssis principal ;
    un rail de support devant être agencé le long d'un escalier à une certaine hauteur de celui-ci ;
    des moyens de support destinés à supporter ledit châssis principal de telle sorte qu'il soit mobile le long dudit rail de support ;
    un premier moteur électrique pour déplacer le châssis principal le long du rail de support ;
    un support supporté par le châssis principal pour supporter un fauteuil ; et
    des moyens de mise à niveau pour maintenir le support dans une position fixe par rapport à l'horizontale ;
    caractérisé en ce que
    les moyens de mise à niveau comprennent un châssis auxiliaire supporté par le châssis principal pour supporter un fauteuil, par exemple un fauteuil roulant, par l'intermédiaire d'un support, de telle sorte que le support peut être déplacé et fixé par rapport au châssis principal par trois moteurs électriques auxiliaires selon deux degrés de liberté de rotation et un degré de liberté de translation.
  2. Ascenseur d'escalier selon la revendication 1, dans lequel le premier degré de liberté de rotation est prévu pour un pivotement vers le haut et vers le bas du support sur au moins un premier axe s'étendant plus ou moins horizontalement.
  3. Ascenseur d'escalier selon la revendication 1, dans lequel le second degré de liberté de rotation est prévu pour faire pivoter le support autour d'un second axe s'étendant sensiblement transversalement au rail et au moins plus ou moins dans la direction horizontale.
  4. Ascenseur d'escalier selon les revendications 2 et 3, dans lequel les premier et second axes, au moins, se recoupent plus ou moins.
  5. Ascenseur d'escalier selon la revendication 1, dans lequel le degré de liberté de translation est prévu pour déplacer le support vers le haut et vers le bas.
  6. Ascenseur d'escalier selon la revendication 1, dans lequel les trois dits degrés de liberté sont indépendants les uns des autres.
  7. Ascenseur d'escalier selon la revendication 1, comprenant une batterie.
  8. Ascenseur d'escalier selon la revendication 7, dans lequel, sur au moins une extrémité du rail de support, est placée une borne pour un dispositif de charge pouvant agir conjointement avec une borne complémentaire qui est présente sur l'ascenseur d'escalier et qui est reliée à la batterie pour charger la batterie lorsque lesdites bornes sont à l'état couplé.
  9. Ascenseur d'escalier selon la revendication 1, dans lequel le premier moteur électrique entraíne une roue dentée qui peut agir conjointement avec une denture agencée sur le rail de support, par exemple une chaíne fixe à cardan supportée par celui-ci.
  10. Ascenseur d'escalier selon la revendication 1, comprenant une unité de commande centrale destinée à être manipulée par un utilisateur.
  11. Ascenseur d'escalier selon la revendication 10, dans lequel l'unité de commande centrale est du type auto-adaptatif.
EP95937219A 1994-11-23 1995-11-23 Chaise-ascenseur Expired - Lifetime EP0793614B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL9401963 1994-11-23
NL9401963A NL9401963A (nl) 1994-11-23 1994-11-23 Traplift.
PCT/NL1995/000401 WO1996015974A1 (fr) 1994-11-23 1995-11-23 Chaise-ascenseur

Publications (2)

Publication Number Publication Date
EP0793614A1 EP0793614A1 (fr) 1997-09-10
EP0793614B1 true EP0793614B1 (fr) 1999-03-17

Family

ID=19864934

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95937219A Expired - Lifetime EP0793614B1 (fr) 1994-11-23 1995-11-23 Chaise-ascenseur

Country Status (9)

Country Link
EP (1) EP0793614B1 (fr)
AT (1) ATE177716T1 (fr)
AU (1) AU3938495A (fr)
DE (1) DE69508425T2 (fr)
DK (1) DK0793614T3 (fr)
ES (1) ES2128782T3 (fr)
GR (1) GR3030250T3 (fr)
NL (1) NL9401963A (fr)
WO (1) WO1996015974A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19740854A1 (de) * 1997-09-17 1999-03-25 Wilfried Hamm Personenlift für Treppen
GB0306367D0 (en) * 2003-03-20 2003-04-23 Stannah Stairlifts Ltd Improvements in or relating to stairlifts
GB2409446B (en) * 2003-12-10 2006-08-30 Stannah Stairlifts Ltd Improvements in or relating to stairlifts
NL1025571C2 (nl) * 2004-02-26 2005-08-29 Thyssenkrupp Accessibility B V Traplift.
ITMI20051904A1 (it) * 2005-10-10 2007-04-11 Vimec S P A SERVOSCALA CON MEZZI DIMPèOSIZIONAMENTO ANGOLARE
GB0602618D0 (en) * 2006-02-09 2006-03-22 Stannah Stairlifts Ltd Improvements in or relating to stairlifts
NL2001573C2 (nl) * 2008-05-13 2009-11-16 Ooms Otto Bv Traplift.
NL2007964C2 (nl) * 2011-12-13 2013-06-17 Ooms Otto Bv Traplift.
GB202014000D0 (en) * 2020-09-07 2020-10-21 Stannah Stairlifts Ltd Improvements in or relating to stairlifts

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4904916A (en) * 1988-05-18 1990-02-27 The Cheney Company Electrical control system for stairway wheelchair lift
US5165753A (en) * 1991-01-02 1992-11-24 Henderson Eldred D Elevator chair apparatus
US5230405A (en) * 1991-11-13 1993-07-27 Michael Roman Bruno Stairway chairlift device
NL9200437A (nl) * 1992-03-09 1993-10-01 Brinkman Liftenfabriek Bv Trapliftinstallatie.

Also Published As

Publication number Publication date
ES2128782T3 (es) 1999-05-16
GR3030250T3 (en) 1999-08-31
WO1996015974A1 (fr) 1996-05-30
DE69508425T2 (de) 1999-07-01
DE69508425D1 (de) 1999-04-22
AU3938495A (en) 1996-06-17
ATE177716T1 (de) 1999-04-15
EP0793614A1 (fr) 1997-09-10
NL9401963A (nl) 1996-07-01
DK0793614T3 (da) 1999-10-11

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