EP0526088B1 - Rollstühle - Google Patents

Rollstühle Download PDF

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Publication number
EP0526088B1
EP0526088B1 EP92306695A EP92306695A EP0526088B1 EP 0526088 B1 EP0526088 B1 EP 0526088B1 EP 92306695 A EP92306695 A EP 92306695A EP 92306695 A EP92306695 A EP 92306695A EP 0526088 B1 EP0526088 B1 EP 0526088B1
Authority
EP
European Patent Office
Prior art keywords
seat
wheelchair
frame
frame element
wheelchair according
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
EP92306695A
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English (en)
French (fr)
Other versions
EP0526088A1 (de
Inventor
Moshe Levy
Zvi Gilad-Smolinsky
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.)
TZORA FURNITURE INDUSTRIES Ltd
TZORA FURNITURE IND Ltd
Original Assignee
TZORA FURNITURE INDUSTRIES Ltd
TZORA FURNITURE IND Ltd
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Publication date
Application filed by TZORA FURNITURE INDUSTRIES Ltd, TZORA FURNITURE IND Ltd filed Critical TZORA FURNITURE INDUSTRIES Ltd
Publication of EP0526088A1 publication Critical patent/EP0526088A1/de
Application granted granted Critical
Publication of EP0526088B1 publication Critical patent/EP0526088B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A61G5/045—Rear 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
    • 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
    • A61G5/006—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs convertible to stretchers or beds
    • 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
    • A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
    • 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
    • A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
    • A61G5/0808—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction
    • A61G5/085—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding up and down, e.g. reducing or expanding the overall height of the wheelchair
    • 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
    • A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
    • A61G5/0891—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable having rigid supports, e.g. seat or back supports which retain their shape after folding of the wheelchair
    • 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
    • A61G5/1054—Large wheels, e.g. higher than the seat portion
    • 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
    • A61G5/1089—Anti-tip devices
    • 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
    • A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
    • A61G5/125—Rests specially adapted therefor, e.g. for the head or the feet for arms
    • 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
    • A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
    • A61G5/128—Rests specially adapted therefor, e.g. for the head or the feet for feet
    • 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
    • A61G5/14—Standing-up or sitting-down aids
    • 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
    • A61G5/1059—Arrangements for adjusting the seat adjusting the height of the seat
    • 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
    • A61G5/107—Arrangements for adjusting the seat positioning the whole seat forward or rearward

Definitions

  • the principal object thereof was the design of a wheelchair which can traverse sloping surfaces without experiencing side drift and yet which may be easily manipulated to climb curbs and the like and which may traverse rough ground without undue discomfort to the user.
  • a still further object of said patent was to provide a movable center of gravity wheelchair in which the seat and thus the center of gravity is located essentially over the main wheels during normal use but in which means is provided for easily shifting the seat and center of gravity forwardly to remove weight from the main wheels to facilitate curb climbing.
  • the disadvantage of said arrangement is that it is limited to articulated movement of a sub frame comprising the seat and front caster wheel from a first position to a second position for curb climbing.
  • wheelchair constructions have remained unchanged, except for relatively minor features for a substantial period of time. While wheelchairs have existed for many years, they generally were constructed of a main frame, front and rear wheels, side rails or so-called "arm rests" and foot support members. However, there was no means for creating or manufacturing a wheelchair of different sizes, at a relatively low cost, from standard sized components, in order to accommodate different size users.
  • Prior art wheelchair manufacturers constructed several different sized wheelchairs and used different sized components for each of the differently sized wheelchairs.
  • the main frame had to be larger, the seat located in a different position, and a foot support member extended further from the seat, than in the case of a wheelchair for a smaller individual.
  • the seat may have to be located at a higher elevation in order to permit the user to engage rims on the wheels for propelling the wheelchair in an easy and convenient manner.
  • wheelchairs heretofore constructed were not designed,to permit any form of athletic activity, and particularly, for fast-moving sports activities. This was primarily due to the fact that the prior art wheelchairs were all of a box-like construction with the seat, and hence, the center of gravity, located at a fixed and at a substantial distance above the ground. Consequently, the prior art wheelchairs were not designed for any fast movement, and if one attempted to propel any of the prior art wheelchairs at any significant speed, or attempted to turn a corner quickly, the wheelchair might well tip over, causing injury to the user.
  • Minnebraker's approach to providing a multifunctional wheelchair which would be used for normal indoor and outdoor use as well as for sports activities was based on providing the frame with a plurality of axle receiving openings so that the center of gravity of the wheelchair could be altered by disassembling the wheelchair and repositioning the wheels relative to the frame.
  • the so-called “positioning angle” has been primarily employed in the prior art. By this means the seat back is adjusted for each application and then is fixedly locked in the adjustment position by means of this positioning angle.
  • the two front wheels are not directly connected with the frame bars of the seat surface, but instead they are pivotally connected to this frame so that they work as carrying bars which extend parallel to the seat surface frame bars.
  • they are also angularly adjustable as is illustrated for example on page 15 of the publication mentioned immediately above.
  • U.S. Patent 4,852,899 suggests that by adjusting two telescoping-type interengaging shiftable parts for each of two frame bars of a support frame of a lightweight wheelchair, the sitting position of the same can be adjusted with respect to the seat surface and with it the adjustment of the center of gravity can be dynamically adjusted with respect to the user.
  • said patent provides a lightweight wheelchair adjustable for a specific balance, comprising a seat arranged on two frame bars characterized in that the frame bars at the seat level have at least two parts telescopically adjustable relative to one another and adjustably connecting the back rest with the support frame to selectively shift the position of the back rest relative to the seat.
  • a wheelchair comprising a base frame comprising a pair of side plates and a web extending between said side plates; a plurality of wheels including two drive wheels and at least one other wheel; means for propelling said drive wheels, said means consisting of hand engageable rim means associated with said drive wheels; means for mounting said wheels to said base frame, but so that the wheelbase thereof is substantially fixed; chair support means; and means for mounting said chair support means to said frame so that the position of said chair support means with respect to said frame and with respect to said drive wheels is adjustable, so that the center of gravity of said wheelchair is adjustable by adjusting the portion of said chair support means with respect to said frame, and without adjustment of the position of said drive wheels with respect to said frame, said means comprising: a pair of inner and outer flanges of said chair means for receipt of each of said frame side plates; means defining elongated openings in said web adjacent each of said side plates; and fastener means extending through said elongated openings into operative association with said chair support means
  • a hand-propelled wheelchair comprising a frame element to which is mounted a pair of large drive wheels along a first axis and a pair of front caster wheels, said wheelchair further comprising a seat unit having a base and an upright back support, characterised by said seat unit being slidably mounted along a horizontal member of said frame element and including manually actuated engagement and release means whereby said seat unit is manually slidable and arrestable in a plurality of desired positions along said frame element by the user while seated in an upright position in the seat of said wheelchair as defined by said base and said upright back support to vary the center of gravity of the user and the seat unit with reference to the axis of the drive wheels, while the drive wheels, the frame element or the seat unit remained assembled to one another.
  • said base and back are hingedly attached to each other, said base and back being arrestable in at least one position defining an angle of greater than 100° therebetween to provide a wheelchair with a reclining backrest.
  • this problem can be ameliorated by simply sliding the seat backwards along the frame to an arrested position of minimal distance between the center of gravity and the axis of the drive wheels.
  • Another problem solved by the present wheelchair is that of change in the center of gravity as a result of a change in the weight load in the chair.
  • the center of gravity of the chair is shifted from the optimum which existed before.
  • the user simply slides the seat in relation to the frame to find the best position which restores said optimum.
  • said frame element is rigid having a first frame bar defining a first axis to which said drive wheels are attached.
  • said seat unit is attached to said frame via a linkage arrangement for varying the vertical distance between said seat base and said frame.
  • said seat base is hingedly attached to at least one linkage arm which arm is in turn hingedly attached to a mounting member slidingly mounted on said frame.
  • said hinges include integral indent and/or guide and stop means which fully define and delimit predetermined angular positions of said linkage arm with respect to said base and said frame element and said hinges are designed so as to restrict the freedom of movement of said linkage arm to only one plane.
  • Armrests 26 are attached to back 20 by means of hinges 28, these too being arrestable at various angular positions.
  • the convenient demountability of the drive wheels 12 from the first axis 22 is of further utility for passage in very narrow pathways such as are found, for example, in passenger aircraft.
  • the auxiliary wheels 68 which will be described with reference to Fig. 9 are used, the drive wheels 12 having been disassembled.
  • Fig. 5 the same embodiment as in Fig. 2 but is shown here adjusted to provide a high seating position such as might be required by a tall user.
  • the extra height shown is obtained by locking the linkage arm 38 in a vertical position.
  • the desired position of the center of gravity of the seat unit 16 with user can still be maintained at a desired location by moving the mounting member 36 as will be explained.
  • Figs. 6A and 6B show a preferred embodiment of the mounting member 36, which is provided with means for frictional engagement to the frame element 10. Means are provided for selectively clamping and unclamping the mounting member to the frame element 10.
  • these means are provided in the form of a coil spring 40 assembled around and frictionally engaging and clamping a horizontal member 42 of the frame element 10, one extremity 44 of the coil spring 40 being attached to the mounting member 36 and the remaining spring extremity 46 being attached to a tensioning device such as a cable 48, which when tensioned by the user by means of a handgrip 50 shown in Fig. 5, slightly unwinds and expands the coil spring 40 and thereby releases the frictional engagement between the coil spring 40 and the horizontal member 42.
  • a tensioning device such as a cable 48
  • a linear motion ball bearing 52 is shown supporting the mounting member 36 on the horizontal member 42.
  • a pair of low-cost sleeve bearings are used inside a mounting block of increased length.
  • the function of the described mounting member 36 is to support the linkage arm 38 as will be explained.
  • FIG. 8 an embodiment of the wheelchair adapted to suit a standing user, or for use of a sitting or reclining user who wishes to assume a standing position but is unable to do so without help.
  • the linkage arm 38 is hingedly attached to the seat base 18 and is arrestable in at least one position defining an angle greater than 90° between the bottom surface of the seat base 18 and the linkage arm 38. Thereby the positioning of the seat base 18 in an orientation approaching perpendicular with the ground is achieved, for adaptation of the wheelchair for use as a stand-up wheelchair.
  • an electrically powered hydraulic, pneumatic or mechanical jack 60 is provided for selectively positioning the seat base 18 in an orientation approaching perpendicular to the ground. Obviously the removable pin 56 is previously removed from the upper hinge 30 to allow the jack 60 to carry out its function. A secondary linkage 62 is provided to change the angle between the base 18 and the back 20 as shown.
  • adjustable-height footrests 64 which are adjustable to assume a locked position at a height suitable for normal use or extended to contact the ground when the seat base 18 is oriented in a near-vertical position.
  • a preferred method of operating the adjustable height footrests 64 is by means of a second jack 66.
  • Fig. 9 shows a further embodiment provided with a pair of auxiliary wheels 68. These are positioned to the rear of the drive wheels 12 at a height above ground level such that the auxiliary wheels 68 contact the ground when the front caster wheels 14 are raised from the ground for a purpose such as going up a curb step 70. Preferably means are provided to allow the horizontal distance by which the auxiliary wheels 68 are behind the first axis 22 of the drive wheels to be varied.
  • the auxiliary wheels 68 are suspended from an arm 72 attached to the mounting member, whereby the horizontal position of the auxiliary wheels 68 may be conveniently varied by the user while remaining seated by moving the seat unit 16 horizontally forward or backward relative to the frame element 10.
  • the auxiliary wheels 68 thus prevent the wheelchair from overturning when moving the seat unit 16 backwards relative to the frame element 10 while travelling on side sloping surfaces or carrying out a "wheelie" manoeuvre.
  • undesirable contact between the auxiliary wheels 68 and the road surface can be avoided by the user moving the auxiliary wheels forward nearer the first axis 22 when their assistance is not required.
  • Fig. 10 shows yet a further embodiment of the wheelchair provided with an electric drive attachment 74.
  • Such attachments are well known and require no description.
  • An extension 76 of the frame element is added to provide a mounting member for the attachment 74.
  • the weight of the attachment 74 is compensated for by moving the seat unit 16 further forward than in previous embodiments.
  • Fig. 11 shows again the embodiment which has been previously described with reference to Fig. 2 but is here shown as adjusted for use by a reclining person. This has been achieved by, lowering the inclination of the back 20 by use of the hinge 24, and by raising the footrests 21 to a horizontal position. Such adjustment would be of utility to allow a user to sleep in the wheelchair and for hospitals for moving unconscious patients.
  • Fig. 12 shows the seat unit 16 mounted on horizontal sliding rails 78, 80. At least one rail is provided; the embodiment shown is provided with a pair of parallel rails.
  • the rails 78 are fixedly attached to the base 18, and are shaped to be guided by the rails 80 engaging the rails 78 and free to slide axially therealong.
  • the linkage arm 38 is attached to and supports the rail 80 via the hinge 30, whereby in conjunction with the hinge 32 the wheelchair may be collapsed when required as shown in Fig. 3.
  • the hinge 32 is fixedly attached to the frame element 10.
  • the height of the seat unit 16 may be altered by changing the angle of the linkage arm 38 as has been explained with reference to Fig. 7.
  • Figs. 13A and 13B show details of the rails 78, 80.
  • One edge of the rail 80 is provided with a series of apertures 82, any one of which may be engaged by a pin 84 connected by a short shaft 86 to the handgrip 50. Thereby the user, while remaining seated, may slide the seat unit 16 forward or backward to any desired position while temporarily releasing the pin 84 from engagement with the apertures 82.

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Claims (19)

  1. Rollstuhl für Handantrieb mit einem Rahmenelement (10), an dem ein Paar große Antriebsräder (12) mit einer ersten Achse (22) und ein Paar vordere Lenkräder (14) angeordnet sind, wobei der Rollstuhl weiterhin eine Sitzeinheit (16) mit einem Sitz (18) und einer Rückenstütze (20), aufweist, dadurch gekennzeichnet, daß die Sitzeinheit (16) gleitbar an einem horizontalen Teil des Rahmenelementes (10) angeordnet ist und handbetätigbare Eingriffs- und Freigabemittel aufweist, womit die Sitzeinheit (16) gleitbar oder fixierbar in einer Vielzahl erwünschter Positionen längs des Rahmenelementes (10) vom Benutzer beim Sitzen in aufrechter Stellung auf der Sitzeinheit (16) mit Sitz (18) und Rückenstütze (20) einstellbar ist, um den Schwerpunkt des Benutzers mit der Sitzeinheit (16) relativ zur Achse (22) der Antriebsräder (12) zu variieren, während die Antriebsräder (12), das Rahmenelement (10) und/oder die Sitzeinheit (16) zusammenbleiben.
  2. Rollstuhl für Handbetrieb nach Anspruch 1, bei den Sitz (18) und Rückenstütze (20) mit einem starren Rahmen gelenkig untereinander verbunden sind, wobei der Sitz (18) und Rückenstütze (20) in wenigstens einer Position fixierbar sind, die dazwischen einen Winkel größer als 100° definiert, um einen Rollstuhl mit einer zurückklappbaren rückwärtigen Ruhelage auszubilden.
  3. Rollstuhl nach Anspruch 1, bei dem der Sitz orthopädisch geformt ist.
  4. Rollstuhl nach Anspruch 1, bei dem Sitz (18), Rückenteil (20) und Rahmenelement (10) miteinander durch eine Vielzahl von Gelenken verbunden sind, wobei die Gelenke Achsen aufweisen, die senkrecht zu einer zentralen, vertikalen Symmetrieebene des Rollstuhls stehen und die Antriebsräder (12) abnehmbar an das Rahmenelement montiert sind, wobei das Rückenteil (20) auf den Sitz (18) faltbar ist, welcher seinerseits auf das Rahmenelement (10) faltbar ist, um nach Abnahme der Antriebsräder (12) vom Rahmen eine kompakte Einheit zu bilden.
  5. Faltbarer Rollstuhl nach Anspruch 1, bei dem das Rahmenelement (10) starr ausgebildet ist und eine erste Rahmenstange (10) aufweist, die eine erste Achse (22) ausbildet, woran die Antriebsräder (12) angebracht sind.
  6. Faltbarer Rollstuhl nach Anspruch 5, bei dem die Sitzeinheit (16) am Rahmenelement (10) mit einer Gelenkanordnung verbunden ist, derart, daß zumindest ein geometrischer Faktor, nämlich die vertikale Distanz zwischen dem Sitz (18) und dem Rahmen (10), der Neigungswinkel des Sitzes (18) relativ zum Rahmen (10) sowie der horizontale Abstand zwischen dem Sitz (18) und den Antriebsrädern variierbar ist.
  7. Faltbarer Rollstuhl nach Anspruch 6, bei dem der Sitz (18) gelenkig an zumindest einem Schwenkarm (38) angebracht ist, wobei der Arm (38) seinerseits gelenkig an ein an Rahmenelement (10) gleitbar gehaltenes Führungselement (36) angelenkt ist.
  8. Faltbarer Rollstuhl nach Anspruch 7, der Mittel für einen Reibschluß zwischen dem Führungselement (36) und dem Rahmenelement (10) aufweist.
  9. Faltbarer Rollstuhl nach Anspruch 7, der Mittel zum selektiven Festklemmen und Lösen des Führungselementes (36) am Rahmenelement (10) aufweist.
  10. Faltbarer Rollstuhl nach Anspruch 7, der eine Spiralfeder (40) aufweist, die ein horizontales Teil (42) des Rahmens unter Reibung mit Klemmwirkung umgibt, wobei ein Ende der Feder (40) am Führungselement (36) befestigt und das andere Ende der Feder (40) mit einem Betätigungselement (48) zusammenwirkt, welches bei Betätigung die Klemmwirkung zwischen der Feder (40) und dem horizontalen Rahmen (42) aufhebt, und beim Freigeben einen Wiedereingriff der Feder (40) mit dem horizontalen Rahmen (42) bewirkt.
  11. Faltbarer Rollstuhl nach Anspruch 7, bei dem die Gelenkanordnung vollständig identische Führungs- und/oder Stopmittel umfaßt, die vorbestimmte Winkelstellungen des Schwenkarms (38) definiert und begrenzt, und zwar relativ zum Sitz (18) und Rahmenelement (10).
  12. Faltbarer Rollstuhl nach Anspruch 11, bei dem die Gelenkanordnung so ausgebildet ist, daß sie die Bewegungsfreiheit des Schwenkarms (38) auf eine Ebene eingrenzt.
  13. Faltbarer Rollstuhl nach Anspruch 11, bei dem der Schwenkarm (38) am Sitz gelenkig angeordnet ist und die Gelenkanordnung in wenigstens einer Position festsetzbar ist, welche einen Winkel größer als 90° zwischen der Fläche (20) des Sitzes (18) und dem Schwenkarm (38) bildet, wobei dieser eine Positionierung der Sitzfläche in einer Ausrichtung annähernd senkrecht zum Boden ermöglicht, und zwar zur Umrüstung des Rollstuhls in einen stehenden Rollstuhl.
  14. Faltbarer Rollstuhl nach Anspruch 13, der weiterhin ein elektromotorisch oder hydraulisch, pneumatisch oder mechanisch betätigbares Hubelement (60) aufweist, welches die Sitzfläche (20) selektiv positionierbar in eine Ausrichtung annähernd senkrecht zum Boden bringt.
  15. Faltbarer Rollstuhl nach Anspruch 13, der höheneinstellbare Fußstützen (21) aufweist, die in einer justierbaren Position in einer Höhe für normalen Gebrauch einstellbar sind, oder ausgezogen zum Kontakt mit dem Boden, wenn sich die Sitzfläche (20) in einer annähernd vertikalen Position befindet.
  16. Faltbarer Rollstuhl nach Anspruch 1, der mit einem Paar Hilfsrädern (68) in Anordnung hinter den Antriebsrädern (12) in Höhe etwa des Bodens ausgebildet ist, derart, daß die Hilfsräder (68) den Boden berühren, wenn die vorderen Lenkräder (14) vom Boden abgehoben sind, um beispielsweise eine Wendeltreppe (70) heraufzugehen.
  17. Faltbarer Rollstuhl nach Anspruch 16, bei dem die horizontale Distanz, mit der die Hilfsräder (68) hinter der Achse (22) der Antriebsräder (12) angeordnet sind, variierbar ist.
  18. Faltbarer Rollstuhl nach Anspruch 16, bei dem die Hilfsräder (68) von einer Rahmenstrebe (72) gehalten sind, die am Führungselement (36) angebracht ist, wobei die horizontale Position der Hilfsräder (68) durch den Benutzer im Sitzen durch horizontale Bewegung der Sitzeinheit (16) beliebig relativ zum starren Rahmen (10) variiert werden kann.
  19. Faltbarer Rollstuhl nach Anspruch 1 in Verbindung mit einem elektrischen Antriebsaggregat.
EP92306695A 1991-07-23 1992-07-22 Rollstühle Expired - Lifetime EP0526088B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL98931 1991-07-23
IL98931A IL98931A0 (en) 1991-07-23 1991-07-23 Wheelchairs

Publications (2)

Publication Number Publication Date
EP0526088A1 EP0526088A1 (de) 1993-02-03
EP0526088B1 true EP0526088B1 (de) 1995-09-06

Family

ID=11062663

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Application Number Title Priority Date Filing Date
EP92306695A Expired - Lifetime EP0526088B1 (de) 1991-07-23 1992-07-22 Rollstühle

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EP (1) EP0526088B1 (de)
AT (1) ATE127332T1 (de)
CA (1) CA2074393A1 (de)
DE (1) DE69204594T2 (de)
IL (1) IL98931A0 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2697418B1 (fr) * 1992-11-05 1994-12-23 Mario Konior Assise multipositions notamment pour personnes handicapées.
JP2003517808A (ja) 1999-08-31 2003-05-27 デルタグライド、インコーポレイテッド 動力補助車両
EP1116480A1 (de) * 1999-10-11 2001-07-18 Invacare Rea AB Rollstuhl
CH694982A5 (de) 2001-09-21 2005-10-31 Levo Ag Aufrichtrollstuhl.
CH695010A5 (de) * 2001-09-21 2005-11-15 Levo Ag Aufrichtrollstuhl.
WO2003045299A1 (en) * 2001-11-28 2003-06-05 Niels Pieter Grobler A wheelchair and a chassis suitable for a wheelchair
US6946650B2 (en) 2002-03-04 2005-09-20 Independence Technology, L.L.C. Sensor
DE102013000724B4 (de) * 2013-01-17 2018-06-21 Bruno Walter Geländegängiger Rollstuhl
AT516072B1 (de) * 2014-07-15 2022-03-15 Walter Bruno Geländegängiger Rollstuhl

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4544200A (en) * 1983-06-02 1985-10-01 Philip Dunn Wheelchair with rocking seat and reclining back feature
US4545593A (en) * 1983-11-04 1985-10-08 Farnam Jeffrey R Enhanced mobility wheelchair
GB8504277D0 (en) * 1985-02-19 1985-03-20 Remploy Ltd Reclining chairs
GB2201588B (en) * 1986-12-22 1990-01-17 Dermot Maynes Wheelchairs

Also Published As

Publication number Publication date
EP0526088A1 (de) 1993-02-03
IL98931A0 (en) 1992-07-15
ATE127332T1 (de) 1995-09-15
DE69204594T2 (de) 1996-04-11
CA2074393A1 (en) 1993-01-24
DE69204594D1 (de) 1995-10-12

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