EP1893153A1 - Fauteuil roulant a entrainement de roue intermediaire - Google Patents

Fauteuil roulant a entrainement de roue intermediaire

Info

Publication number
EP1893153A1
EP1893153A1 EP06741656A EP06741656A EP1893153A1 EP 1893153 A1 EP1893153 A1 EP 1893153A1 EP 06741656 A EP06741656 A EP 06741656A EP 06741656 A EP06741656 A EP 06741656A EP 1893153 A1 EP1893153 A1 EP 1893153A1
Authority
EP
European Patent Office
Prior art keywords
wheel
wheelchair
wheels
wheelchair according
swivel
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.)
Granted
Application number
EP06741656A
Other languages
German (de)
English (en)
Other versions
EP1893153B1 (fr
Inventor
Kurt Hunziker
Samuel HÜRLIMANN
Alexandre Tapis
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.)
Degonda-Rehab Sa
Degonda Rehab SA
Original Assignee
Degonda-Rehab Sa
Degonda Rehab SA
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 Degonda-Rehab Sa, Degonda Rehab SA filed Critical Degonda-Rehab Sa
Publication of EP1893153A1 publication Critical patent/EP1893153A1/fr
Application granted granted Critical
Publication of EP1893153B1 publication Critical patent/EP1893153B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
    • A61G5/041—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven having a specific drive-type
    • A61G5/042—Front wheel drive
    • 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
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
    • A61G5/041—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven having a specific drive-type
    • A61G5/046—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven having a specific drive-type at least three driven wheels
    • 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
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/06—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps
    • 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
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1078—Parts, details or accessories with shock absorbers or other suspension arrangements between wheels and frame
    • 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
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/1075—Arrangements for adjusting the seat tilting the whole seat backwards

Definitions

  • the invention relates to a wheelchair with Mittenradantrieb, with two center wheels, which are separately driven by a motor, at least one front wheel and at least one rear wheel, wherein the rear wheel or the front wheel is in a position above the driving level.
  • a wheelchair with Mittenradantrieb with two center wheels, which are separately driven by a motor, at least one front wheel and at least one rear wheel, wherein the rear wheel or the front wheel is in a position above the driving level.
  • US 5,904,214 shows a wheelchair with Mittenradantrieb with two center wheels, two designed as swivel wheels front wheels and a
  • Rear wheel which is located in a position above the driving level and is driven by a motor.
  • Each of the two center wheels is separately driven by a motor.
  • This has the advantage that the wheelchair in a confined space, z.Bsp. in an elevator car, can be turned. To turn in place, the wheelchair user operates the controller so that the two center wheels are rotated in opposite directions.
  • the front wheels must not hinder the turning. Therefore, the front wheels are designed as swivel wheels.
  • this wheelchair has the disadvantage that obstacles, if they exceed a certain height, can not be overcome in slow speed. Also, the wheelchair described has, for example, in snowy roads a relatively low grip and is no longer able to drive up a relatively steep ramp.
  • Pivoting wheel which holds the rear wheel and / or the front wheel in an elevated position above the driving plane, but is adjustable in height to allow in overcoming obstacles to the rear wheel or the front wheel ground contact. Since normally neither the front nor the rear wheel are in contact with the ground, they are not a hindrance when turning the wheelchair. Thanks to its elevated position, the front wheel can easily overcome this when hitting an obstacle. The same applies to the rear wheel when reversing. There is also no need to train these wheels as swivel wheels. They can therefore be designed as driven wheels to give the wheelchair when overcoming obstacles or, for example, in snow-covered road the properties of an all-wheel drive. Conveniently, therefore, both the front wheel and the rear wheel are driven by a motor.
  • a front wheel is expediently provided on each side of the wheelchair.
  • a rear wheel is advantageously provided on each side of the wheelchair.
  • a front wheel and / or a rear wheel can be arranged and each provided a common drive. This can be done for example by means of an endless chain or an endless toothed belt, a gear transmission, a cardan drive or other mechanical device.
  • a common drive could also be realized by hydraulic means.
  • the swivel wheel is conveniently held by spring force in the normal position in which the Vorderrrad and the rear wheel are in a position above the road, in which they do not hinder the turning of the wheelchair. But it would also be possible to provide a motor to adjust the pivot wheel in height.
  • the respective swivel wheel is expediently arranged in the middle between the rear wheels or the front wheels. 6 000331
  • the invention also relates to a wheelchair with Mittenradantrieb, which has two center wheels, which are separately driven by a motor, has at least one front wheel and at least one rear wheel, wherein the front wheel is in an elevated position above the driving level.
  • This wheelchair according to the invention is characterized in that the front wheel is driven by a motor and that the rear wheel is designed as a swivel wheel. Thanks to the rear wheels designed as swivel wheels, this wheelchair can also be used in confined spaces. Even overcoming obstacles is easy to accomplish when driving forward thanks to the elevated position of the front wheels above the driving level and their motor drive. But if a much easier overcome of
  • Obstacles also when reversing is desired it is expedient, as previously stated, to provide motor drive for all wheels.
  • FIG. 2 a side view of the wheelchair of FIG. 1,
  • Figure 3 a side view of between the two rear wheels of
  • FIG. 4 the wheelchair when ascending an ascending path
  • FIG. 5 the wheelchair when descending a sloping section
  • Figures 8a to c a second embodiment of a wheelchair with
  • Figures 9a to d a third embodiment of a wheelchair in which only the middle and front wheels are driven by a motor.
  • FIG. 10 shows a fourth embodiment of a wheelchair with center drive, which front and rear has a swivel wheel,
  • FIG. 11 is a front perspective view of the wheelchair of FIG. 10;
  • FIG. 12 is a rear perspective view of the wheelchair of FIG. 10;
  • FIG. 13 a swivel wheel designed as a twin wheel with suspension by means of a spring joint
  • FIG. 14 shows the swivel wheel of FIG. 13, but with one of the twin wheels being omitted, so that the spring joint can be seen,
  • FIG. 15 shows a further embodiment of a swivel wheel, in which two
  • the wheelchair according to the figures 1 to 3 has a chassis 11 and a seat mounted thereon 13. This can be configured arbitrarily, z.Bsp. also as an erecting rack to allow the user to move from the sitting position to the upright position.
  • the wheelchair has two center wheels 15, two front wheels 17 and two rear wheels 19. It would also be possible z.Bsp. to provide only a rear wheel 19 in the vehicle center.
  • a swivel wheel 21 ' located between the rear wheels 19.
  • the swivel wheel 21 ' is advantageously formed as a sprung Zwülingsrad (Fig. 12 to 15).
  • Each of the two center wheels 15 is separately driven by a motor (not shown). This makes it possible to turn the wheelchair in a small space by the Mittenrad 15 is driven in one direction by the one motor and the other Mittenrad 15 by the other motor in the opposite direction.
  • the pivot wheel 21 ' may rotate about the vertical axis 23 ( Figure 3). It should be noted that the pivot wheel 21 'holds both the rear wheels 19 and the front wheels 17 in an elevated position above the driving plane 25. So if the ground is flat, only the center wheels 15 and the pivot wheel 21 'have ground contact. The front wheels and the rear wheels are thus not a hindrance when turning.
  • the wheels 15, 17, 19 are driven together on one side of the wheelchair.
  • a chain 27 or a toothed belt is used to drive the wheels 15, 17, 19 on the other side of the wheelchair. Therefore, two motors are sufficient to drive all wheels. It would also be possible to drive the front wheel pair 17 and the rear wheel pair 19 by a separate motor.
  • the pivot wheel 21 ' which holds both the front wheels and the rear wheels normally in an elevated position above the road surface 25 to allow turning in a confined space, is height adjustable. Thus, if the swivel wheel 21 is raised, the rear wheels 19 make contact with the ground.
  • FIG. 6 shows the various phases of overcoming an obstacle in the forward movement.
  • the rear wheels make contact with the ground and promote the vehicle even if the center wheels should lift off the ground.
  • the wheelchair according to the embodiment of Figures 8a-c is basically the same design as that according to Figures 1 to 3, but has no • motor drive for the front wheels 17 on. It is thus on one side only the middle wheel 15 and rear wheel 19 by means of a chain 27 and corresponding sprockets 28, 30 coupled together. The same applies to the wheels 15, 19 and sprockets 28, 30 on the other side of the wheelchair.
  • the front wheels 17 are formed as swivel wheels. But you can also, for example. shown in Fig. 1, be pivotable, but must then be arranged above the driving plane to allow turning of the wheelchair in a small space.
  • the wheelchair according to the embodiment of Figures 9a-d is basically the same design as that according to FIGS. 1 to 3, but has instead of a motor drive for the rear wheels 19 such a for the front wheels 17.
  • the rear wheels 19 are formed as swivel wheels to allow turning in a small space.
  • the swivel wheels 19 are advantageously sprung. It is possible to provide only one instead of two swivel wheels. But it would also be possible for the same purpose, the structure according to FIGS. 1 to 3 with the non-pivoting rear wheels 19bebeubt with the swivel wheel 21 '. H2006 / 000331
  • the wheelchair according to FIGS. 10 to 12 like the wheelchair according to FIGS. 1 to 3, has a spring-mounted swivel wheel 21 'on the rear, but additionally has a spring-loaded swivel wheel 21 in front.
  • the suspension of the swivel wheels 21, 21 ' must be adapted to the weight of the driver so that at obstacles, ramps, etc., the driven front wheels 17 or rear wheels 19 have ground contact.
  • the swivel wheels 21, 21 ' have a stop so that they can not run counter to the direction of travel einf.
  • the swivel wheels 21, 21 ' are advantageously designed as twin wheels. This has the advantage that it makes turning easier. Wheelchair users appreciate this. Are advantageous such twin wheels even when approaching an obstacle, because when hitting one of the wheels 24 a
  • the swivel wheel 21, 21 ' is pivotable about the vertical axis 35.
  • the support 37 has two arms 39. Between these is a joint, z.Bsp.
  • a spring joint 41 of the "ROST A” type (TM) is arranged on each side of the spring joint 41.
  • An arm 43 is mounted at its free end and supports the wheel 24. The arms 43 are counter to the force of the spring joint 41 about the horizontal axis 45 pivotable.
  • FIG.15 another embodiment of a pivot wheel 21, 21 'is shown, which has two spring joints 41, 41'.
  • the swivel wheel is pivotable about the vertical axis 35.
  • the support 37 has two arms 39. Between these is the first spring joint 41, z.Bsp. of the type "ROSTA” (TM) Spring joint 41 is connected to a, second spring joint 41 '. On both sides of this second spring joint, an arm 39 'is arranged.
  • the arms 39 ' together carry the wheels 24. These wheels 24 are located between the arms 39', but it would be possible to arrange the wheels 24 also on the outside of the arms 39 '.
  • the pivoting wheel formed in this way has two horizontal axes 45, 45 'and thus allows greater deflection.
  • the wheelchair has two center wheels 15, which are separately driven by a motor. To turn in a small space, the center wheels 15 can be driven in opposite directions of rotation. When turning the front wheels 17 and the rear wheels 19 are not a hindrance, because they are held by the pivot wheel 21 at a distance from the ground 25. On each side all three wheels 15, 17, 19 are coupled together by means of a chain 27. When hitting the front wheels on an obstacle of the wheelchair climbs with the driven front wheels 17 on the obstacle. In this case, the fork 22, the pivot wheel 21 is pivoted against the force of a spring about the axis of rotation 31 in the direction of the arrow 33, so that the pivot wheel comes into contact with the ground and drives the wheelchair behind. Without losing its ability to turn, thanks to the all-wheel drive allowed in this way, the wheelchair is able to negotiate relatively high obstacles even when driving slowly ( Figures 1 and 3).

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Handcart (AREA)
EP06741656A 2005-06-24 2006-06-16 Fauteuil roulant a entrainement de roue intermediaire Not-in-force EP1893153B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH10762005 2005-06-24
PCT/CH2006/000331 WO2006136046A1 (fr) 2005-06-24 2006-06-16 Fauteuil roulant a entrainement de roue intermediaire

Publications (2)

Publication Number Publication Date
EP1893153A1 true EP1893153A1 (fr) 2008-03-05
EP1893153B1 EP1893153B1 (fr) 2011-08-17

Family

ID=35788717

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06741656A Not-in-force EP1893153B1 (fr) 2005-06-24 2006-06-16 Fauteuil roulant a entrainement de roue intermediaire

Country Status (4)

Country Link
US (1) US8186463B2 (fr)
EP (1) EP1893153B1 (fr)
AT (1) ATE520384T1 (fr)
WO (1) WO2006136046A1 (fr)

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Publication number Priority date Publication date Assignee Title
US6554086B1 (en) 2000-10-27 2003-04-29 Invacare Corporation Obstacle traversing wheelchair
US7040429B2 (en) 2001-10-10 2006-05-09 Invacare Corporation Wheelchair suspension
US7293801B2 (en) 2003-08-18 2007-11-13 Invacare Corporation Self-stabilizing suspension for wheeled vehicles
US11213441B2 (en) 2002-10-25 2022-01-04 Invacare Corporation Suspension for wheeled vehicles
US7896394B2 (en) 2005-08-18 2011-03-01 Sunrise Medical Hhg, Inc. Midwheel drive wheelchair with independent front and rear suspension
EP2111203B1 (fr) 2007-02-08 2011-01-05 Invacare Corporation Suspension de fauteuil roulant
DK2111204T3 (da) 2007-02-14 2011-07-18 Invacare Corp Stabilitetsstyringssystem
CH713464B1 (de) 2007-08-24 2018-08-15 Levo Ag Wohlen Fahrzeug mit Mittenradantrieb, insbesondere Rollstuhl oder Aufrichtrollstuhl.
US8844961B2 (en) 2010-04-27 2014-09-30 Levo Ag Wohlen Stand-up unit for stand-up wheelchairs and chairs, particularly therapy chairs
US9010470B2 (en) 2009-10-09 2015-04-21 Invacare Corporation Wheelchair suspension
FR2956087B1 (fr) * 2010-02-05 2012-12-28 New Live Dispositif de franchissement d'obstacle pour fauteuil roulant electrique.
US8910951B2 (en) * 2010-03-21 2014-12-16 Smarte Carte, Inc. Caster wheel arrangements
US20110253464A1 (en) * 2010-04-15 2011-10-20 Freerider Corp. Suspension system for electric wheelchair
US8851214B2 (en) 2010-07-15 2014-10-07 Permobil Ab Electric mid-wheel drive wheelchair
EP2729108B2 (fr) 2011-07-06 2024-05-29 Max Mobility, LLC Système d'aide motorisé basé sur le mouvement pour fauteuils roulants
US8789632B2 (en) 2011-09-20 2014-07-29 Dane Technologies, Inc. Powered wheelchair with articulating drive wheels
AU2013221283B2 (en) 2012-02-15 2017-05-25 Invacare Corporation Wheelchair suspension
US9144525B2 (en) * 2013-03-14 2015-09-29 Max Mobility, Llc. Motion assistance system for wheelchairs
EP2996655B1 (fr) 2013-05-17 2019-09-18 Dane Technologies Inc. Dispositifs relatifs à un fauteuil roulant multifonctionnel pour couloir central d'avion
US9073399B1 (en) * 2014-10-10 2015-07-07 Max Mobility, Llc System and method for adjusting a wheelchair seat
US9795524B2 (en) 2015-02-24 2017-10-24 Max Mobility, Llc Assistive driving system for a wheelchair
WO2017076813A1 (fr) * 2015-11-02 2017-05-11 Starship Technologies Oü Système et procédé permettant de franchir des obstacles verticaux
EP3370978B1 (fr) * 2015-11-02 2020-06-03 Starship Technologies OÜ Robot mobile traversant des obstacles
US10772774B2 (en) 2016-08-10 2020-09-15 Max Mobility, Llc Self-balancing wheelchair
US10335330B2 (en) 2017-03-02 2019-07-02 Travelsys4u Ltd. Motor-driven chair steered by seat rotation
KR102046151B1 (ko) * 2017-12-05 2019-11-19 전승욱 계단승강이 가능한 전동 휠체어
US10167051B1 (en) 2017-12-12 2019-01-01 Max Mobility, Llc Assistive driving system for a wheelchair and method for controlling assistive driving system
US11903887B2 (en) 2020-02-25 2024-02-20 Invacare Corporation Wheelchair and suspension systems

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Also Published As

Publication number Publication date
ATE520384T1 (de) 2011-09-15
EP1893153B1 (fr) 2011-08-17
US20090321162A1 (en) 2009-12-31
US8186463B2 (en) 2012-05-29
WO2006136046A1 (fr) 2006-12-28

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