EP1834619A2 - Wheelchair - Google Patents

Wheelchair Download PDF

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Publication number
EP1834619A2
EP1834619A2 EP07004820A EP07004820A EP1834619A2 EP 1834619 A2 EP1834619 A2 EP 1834619A2 EP 07004820 A EP07004820 A EP 07004820A EP 07004820 A EP07004820 A EP 07004820A EP 1834619 A2 EP1834619 A2 EP 1834619A2
Authority
EP
European Patent Office
Prior art keywords
wheelchair according
base frame
carriage
seat
wheelchair
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
EP07004820A
Other languages
German (de)
French (fr)
Other versions
EP1834619B1 (en
EP1834619A3 (en
EP1834619B8 (en
Inventor
Hans-Joachim Dr. Wahlen
Jürgen Windmann
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.)
Meyra Wilhelm Meyer GmbH and Co KG
Original Assignee
Meyra Wilhelm Meyer GmbH and Co KG
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.)
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Publication date
Application filed by Meyra Wilhelm Meyer GmbH and Co KG filed Critical Meyra Wilhelm Meyer GmbH and Co KG
Publication of EP1834619A2 publication Critical patent/EP1834619A2/en
Publication of EP1834619A3 publication Critical patent/EP1834619A3/en
Publication of EP1834619B1 publication Critical patent/EP1834619B1/en
Application granted granted Critical
Publication of EP1834619B8 publication Critical patent/EP1834619B8/en
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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
    • A61G5/10—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
    • A61G5/006—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
    • A61G5/10—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
    • 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
    • A61G2203/00—General characteristics of devices
    • A61G2203/70—General characteristics of devices with special adaptations, e.g. for safety or comfort
    • A61G2203/74—General characteristics of devices with special adaptations, e.g. for safety or comfort for anti-shear when adjusting furniture

Definitions

  • the invention relates to a wheelchair with a base frame on which a seat element and a backrest are mounted.
  • Wheelchairs are usually used for physically very restricted in their motor skills patients. As a result, there is a need for the wheelchair to enable a variety of positions, such as a usual sitting position, a lying position and a position in which getting up and leaving the wheelchair is facilitated.
  • Such wheelchairs are provided with front drive wheels and have on their back freely pivoting steering wheels.
  • the front drive wheels and the rear steering wheels are cushioned by adjustable in their spring force struts so that all four wheels have contact with the ground.
  • the wheels are individually suspended from the frame.
  • the wheelchair usually allows by means of a lifting column, the adjustment of the seat height and the adjustment of the inclination of the backrest.
  • the invention has for its object to provide a wheelchair of the type described, which allows a simple setup and simple, cost manufacturability a universal adjustment of the different sitting and reclining positions in an ergonomic manner.
  • the object is achieved by the feature combination of the main claim, the subclaims show further advantageous embodiments of the invention.
  • the wheelchair has a base frame on which a seat element and a back element are mounted.
  • the seat element and the back element are designed and arranged so that they are displaceable in each case in the longitudinal direction upon adjustment of the wheelchair between a sitting position, a reclining position and an erecting position.
  • This displacement in the longitudinal direction is preferably designed so that this is done by mechanical coupling, so that no servomotors or the like are required for the displacement.
  • This ensures that the adjustment of the angle between the seat of the seat member and the surface of the back member in an ergonomic manner without the development of shear forces between the seat cushion and the back of the wheelchair user, the so-called "shirt extraction effect".
  • the inventively provided mechanical coupling no separate controls or regulations are required, but the respective shift is done automatically.
  • the seat element is mounted by means of a base frame, which is pivotable about a front pivot axis.
  • the seat can be adjusted in terms of its inclination.
  • an increase of the rear portion of the seat is possible (tilting).
  • the intended displaceability of the seat element along the base frame it is not only possible traversjust Schlieren the seat depth, but also an anatomically favorable movement of the body of a patient in the adjustment of the seat of the wheelchair is guaranteed.
  • the back element is displaceably mounted on a back frame, which in turn is pivotally mounted on a carriage, which is mounted longitudinally displaceably on the base frame.
  • a back frame which in turn is pivotally mounted on a carriage, which is mounted longitudinally displaceably on the base frame.
  • the carriage is preferably displaceable in the transition from a sitting position to a standing position, wherein preferably this displacement takes place by means of a coupling element in a mechanical manner.
  • the coupling element may for example be designed in the form of a multi-articulated linkage, which is articulated between the base frame, the base frame and the carriage.
  • the back frame comprises a tilt lever which, when the back frame is pivoted relative to the slide about the pivot axis, the seat element tilts.
  • the rear area of the seat element is thus raised. This avoids step formation between the seat element and the back element in the lying position.
  • the displacement of the back element relative to the back frame is preferably carried out by means of a coupling element.
  • the coupling element may be connected to the carriage and the back element, so that a displacement of the carriage relative to the base frame no Influencing the back element brings with it, however, a pivoting of the back element leads to a shift.
  • the coupling element is preferably designed in the form of a tension band, wherein the provision of the back element by means of an elastic element (spring, rubber element or the like) takes place in an initial position, so that the back element is biased in this starting position.
  • the wheelchair according to the invention thus makes it possible to allow an adjustment from the sitting position to a reclining position and / or to an erecting position, taking into account the anatomical conditions.
  • the seat element In the erect position, the seat element is erected almost vertically, for example at an angle of 80 ° to the horizontal. The patient is thus raised. The same applies to a putting into the wheelchair. The patient can then be returned to the sitting position.
  • legrests, footrests, armrests, headrests or side supports can be provided which can be adjusted servomechanically, electrically or manually.
  • the wheelchair according to the invention comprises a base frame 1, which is mounted by means of a lifting column 13 only schematically shown height adjustable on a chassis of the wheelchair.
  • the front portion of the base frame 1 is angled and carries a pivot axis 5, by means of which a base frame 4 is pivotally mounted on the base frame 1.
  • the base frame 4 has an integrally formed therewith leg 14, whose lower end is pivotally coupled to a linear drive 15, which in turn is hingedly connected at its rear end to the base frame 1, as shown for example in FIG. 3 clearly is apparent.
  • the front portion of the base frame 1 is further pivotally connected to a coupling element 10 which comprises a total of three levers which are hinged together.
  • the front portion of the lower lever of the coupling member 10 is, as mentioned, hingedly coupled to the base frame 1 (see Fig. 3).
  • the rear part of the coupling element 10 is pivotally coupled to a central lever, which is pivotally mounted on a bearing strut 16 of the base frame 4.
  • a third lever of the coupling element 10 is hingedly connected, which is articulated to a carriage 9.
  • the articulated adjustment of the three levers of the coupling element 10 results in particular from FIGS. 1, 3 and 4.
  • the coupling element 10 has not been shown in FIG. 2 for the sake of clarity.
  • the coupling element 10 consisting of three levers thus effects a displacement of the carriage 9 along the base frame 4.
  • the carriage 9 comprises an enlarged carrier part, on which the coupling element 10 is articulated and which by means of a slot (see in particular Figs. 3 and 4) along the base frame 4 is displaceable.
  • the carriage 9 further comprises an elongated front portion, at the end region of a pivot axis 6 is formed, by means of which a seat member 2 is pivotally mounted. With a displacement of the carriage 9 along the base frame 4 thus the seat member is also moved, as this results from the arrows of the illustrations.
  • a pivot axis 8 is formed, on which a back frame 7 is pivotably mounted.
  • the back frame 7 has a forwardly (in the seat position, see FIG. 1) facing Kantelhebel 11, which is arranged below the rear portion of the seat member 2.
  • Kantelhebel 11 which is arranged below the rear portion of the seat member 2.
  • the back element 3 is slidably mounted on the back frame 2. This is connected via a belt-like coupling element 12 to the carriage 9. With a pivoting of the back frame 7 about the pivot axis 8 relative to the carriage 9 is thus forcibly a displacement of the back member 3 by the coupling element 12 (drawstring).
  • the back element 3 is thus moved from the sitting position (FIG. 1) to the lying position (FIG. 2), the back element 3 is replaced by an elastic, not shown in detail biasing element (tension spring, rubber element or the like) in the direction of arrow shown in FIG moved forward.
  • an elastic, not shown in detail biasing element tension spring, rubber element or the like
  • the back element 3 is displaced upward, as shown by the arrow in FIG. 1, since the coupling element 12 applies a suitable tensile force.
  • the adjustment of the back member 3 about the pivot axis 8 by means of a servo motor shown only schematically.
  • foot plates, headrests or the like in a corresponding manner are moved forcibly coupled.
  • the rest of the structure of the wheelchair may be formed as in the German Patent 10 2005 020 914 described. This is to supplement the description with respect to the content of the publication of the patent reference.

Abstract

A wheel-chair has a bottom frame (1) on which are mounted, via a basic fame (4), a seating element and a back-support element (3). The basic frame (4) can be swiveled around a frontal axle (5) and the seating element can be swiveled about a frontal axle (6). The back-support (3) is movably mounted on a back frame which is swivelably mounted on a slide movable lengthwise on the basic frame (4).

Description

Die Erfindung bezieht sich auf einen Rollstuhl mit einem Grundrahmen, an welchem ein Sitzelement und eine Rückenlehne gelagert sind.The invention relates to a wheelchair with a base frame on which a seat element and a backrest are mounted.

Rollstühle werden meist für körperlich sehr stark in ihrer Motorik eingeschränkte Patienten eingesetzt. Hieraus ergibt sich die Notwendigkeit, dass der Rollstuhl verschiedenste Positionen ermöglichen muss, beispielsweise eine übliche Sitzposition, eine Liegeposition sowie eine Position, in der das Aufstehen und Verlassen des Rollstuhls erleichtert wird.Wheelchairs are usually used for physically very restricted in their motor skills patients. As a result, there is a need for the wheelchair to enable a variety of positions, such as a usual sitting position, a lying position and a position in which getting up and leaving the wheelchair is facilitated.

Üblicherweise werden derartige Rollstühle mit vorderen Antriebsrädern versehen und weisen an ihrer Rückseite frei schwenkbare Lenkräder auf. Die vorderen Antriebsräder und die hinteren Lenkräder sind durch in ihrer Federkraft einstellbare Federbeine so abgefedert, dass alle vier Räder Bodenkontakt haben. Die Räder sind dabei einzeln am Rahmen aufgehängt. Der Rollstuhl ermöglicht üblicherweise mittels einer Hubsäule die Einstellung der Sitzhöhe sowie die Einstellung der Neigung der Rückenlehne.Usually, such wheelchairs are provided with front drive wheels and have on their back freely pivoting steering wheels. The front drive wheels and the rear steering wheels are cushioned by adjustable in their spring force struts so that all four wheels have contact with the ground. The wheels are individually suspended from the frame. The wheelchair usually allows by means of a lifting column, the adjustment of the seat height and the adjustment of the inclination of the backrest.

Es versteht sich, dass weitere Bauelemente, wie beispielsweise Armlehnen, Kopfstützen, Fußstützen oder ähnliches vorgesehen sind, die ebenfalls servomotorisch einstellbar und anpassbar sind.It is understood that other components, such as armrests, headrests, footrests or the like are provided, which are also adjustable servo motor and adaptable.

Der Erfindung liegt die Aufgabe zugrunde, einen Rollstuhl der beschriebenen Art zu schaffen, welcher bei einfachem Aufbau und einfacher, kostengünstiger Herstellbarkeit eine universelle Einstellung der unterschiedlichen Sitz- und Liegepositionen in ergonomischer Weise ermöglicht. Erfindungsgemäß wird die Aufgabe durch die Merkmalskombination des Hauptanspruchs gelöst, die Unteransprüche zeigen weitere vorteilhafte Ausgestaltungen der Erfindung.The invention has for its object to provide a wheelchair of the type described, which allows a simple setup and simple, cost manufacturability a universal adjustment of the different sitting and reclining positions in an ergonomic manner. According to the invention the object is achieved by the feature combination of the main claim, the subclaims show further advantageous embodiments of the invention.

Erfindungsgemäß ist somit vorgesehen, dass der Rollstuhl einen Grundrahmen aufweist, an welchem ein Sitzelement und ein Rückenelement gelagert sind. Das Sitzelement und das Rückenelement sind dabei so ausgestaltet und angeordnet, dass diese bei Verstellung des Rollstuhls zwischen einer Sitzstellung, einer Liegestellung und einer Aufrichtstellung jeweils in Längsrichtung verschiebbar sind. Diese Verschiebung in Längsrichtung ist bevorzugterweise so ausgebildet, dass diese durch mechanische Kopplung erfolgt, so dass keine Servomotoren oder ähnliches für die Verschiebung erforderlich sind. Hierdurch wird sichergestellt, dass die Verstellung des Winkels zwischen der Sitzfläche des Sitzelements und der Fläche des Rückenelements in ergonomischer Weise ohne die Entwicklung von Schubkräften zwischen Sitzpolster und dem Rücken des Rollstuhlfahrers, dem sogenannten "Hemdauszieheffekt" erfolgt. Durch die erfindungsgemäß vorgesehene mechanische Kopplung sind keine separaten Steuerungen oder Regelungen erforderlich, vielmehr erfolgt die jeweilige Verschiebung automatisch.According to the invention, it is thus provided that the wheelchair has a base frame on which a seat element and a back element are mounted. The seat element and the back element are designed and arranged so that they are displaceable in each case in the longitudinal direction upon adjustment of the wheelchair between a sitting position, a reclining position and an erecting position. This displacement in the longitudinal direction is preferably designed so that this is done by mechanical coupling, so that no servomotors or the like are required for the displacement. This ensures that the adjustment of the angle between the seat of the seat member and the surface of the back member in an ergonomic manner without the development of shear forces between the seat cushion and the back of the wheelchair user, the so-called "shirt extraction effect". The inventively provided mechanical coupling no separate controls or regulations are required, but the respective shift is done automatically.

In einer besonders günstigen Ausgestaltung der Erfindung ist vorgesehen, dass das Sitzelement mittels eines Basisrahmens gelagert ist, welcher um eine vordere Schwenkachse schwenkbar ist. Somit kann der Sitz hinsichtlich seiner Neigung verstellt werden. Insbesondere ist eine Anhebung des hinteren Bereichs des Sitzes möglich (Kantelung). Durch die vorgesehene Verschiebbarkeit des Sitzelements längs des Basisrahmens ist es nicht nur möglich, die Sitztiefe einzujustieren, vielmehr wird auch eine anatomisch günstige Bewegung des Körpers eines Patienten bei der Verstellung des Sitzes des Rollstuhls gewährleistet.In a particularly favorable embodiment of the invention it is provided that the seat element is mounted by means of a base frame, which is pivotable about a front pivot axis. Thus, the seat can be adjusted in terms of its inclination. In particular, an increase of the rear portion of the seat is possible (tilting). The intended displaceability of the seat element along the base frame, it is not only possible einzujustieren the seat depth, but also an anatomically favorable movement of the body of a patient in the adjustment of the seat of the wheelchair is guaranteed.

Besonders günstig ist es, wenn das Rückenelement verschiebbar an einem Rückenrahmen gelagert ist, welcher wiederum schwenkbar an einem Schlitten gelagert ist, welcher längs verschiebbar an dem Basisrahmen gelagert ist. Durch die Verstellung der Neigung des Basisrahmens ist es somit möglich, den Schlitten zwangsgesteuert längs des Basisrahmens zu verschieben. Hierdurch verschiebt sich ebenfalls die Schwenkachse des Rückenelements, um eine anatomische Zuordnung zwischen dem Sitzelement und dem Rückenelement zu gewährleisten.It is particularly favorable when the back element is displaceably mounted on a back frame, which in turn is pivotally mounted on a carriage, which is mounted longitudinally displaceably on the base frame. By adjusting the inclination of the base frame, it is thus possible to move the slide positively controlled along the base frame. This also shifts the pivot axis of the back member to ensure an anatomical association between the seat member and the back member.

Der Schlitten ist bevorzugterweise beim Übergang von einer Sitzposition in eine Aufstehposition verschiebbar, wobei bevorzugterweise diese Verschiebung mittels eines Kupplungselements auf mechanische Weise erfolgt. Das Kupplungselement kann beispielsweise in Form eines mehrgelenkigen Gestänges ausgebildet sein, welches zwischen dem Grundrahmen, dem Basisrahmen und dem Schlitten gelenkig gekoppelt ist.The carriage is preferably displaceable in the transition from a sitting position to a standing position, wherein preferably this displacement takes place by means of a coupling element in a mechanical manner. The coupling element may for example be designed in the form of a multi-articulated linkage, which is articulated between the base frame, the base frame and the carriage.

Um bei einer Verschwenkung des Rückenelements von der Sitzposition in eine Liegeposition eine flächige Zuordnung zwischen dem Rückenelement und dem Sitzelement zu gewährleisten, ist es besonders günstig, wenn der Rückenrahmen einen Kantelhebel umfasst, welcher bei Verschwenkung des Rückenrahmens relativ zu dem Schlitten um die Schwenkachse das Sitzelement kippt. Der hintere Bereich des Sitzelements wird somit angehoben. Hiermit wird eine Stufenbildung zwischen dem Sitzelement und dem Rückenelement in der Liegestellung vermieden.In order to ensure a planar association between the back element and the seat element when the back element is pivoted from the sitting position into a lying position, it is particularly favorable if the back frame comprises a tilt lever which, when the back frame is pivoted relative to the slide about the pivot axis, the seat element tilts. The rear area of the seat element is thus raised. This avoids step formation between the seat element and the back element in the lying position.

Auch die Verschiebung des Rückenelements relativ zu dem Rückenrahmen erfolgt bevorzugterweise mittels eines Kopplungselements. Das Kopplungselement kann mit dem Schlitten und dem Rückenelement verbunden sein, so dass eine Verschiebung des Schlittens relativ zu dem Basisrahmen keine Beeinflussung des Rückenelements mit sich bringt, eine Verschwenkung des Rückenelements jedoch zu einer Verschiebung führt. Das Kopplungselement ist bevorzugterweise in Form eines Zugbandes ausgebildet, wobei die Rückstellung des Rückenelements mittels eines elastischen Elements (Feder, Gummielement oder Ähnlichem) in eine Ausgangsposition erfolgt, so dass das Rückenelement in dieser Ausgangsposition vorgespannt ist.The displacement of the back element relative to the back frame is preferably carried out by means of a coupling element. The coupling element may be connected to the carriage and the back element, so that a displacement of the carriage relative to the base frame no Influencing the back element brings with it, however, a pivoting of the back element leads to a shift. The coupling element is preferably designed in the form of a tension band, wherein the provision of the back element by means of an elastic element (spring, rubber element or the like) takes place in an initial position, so that the back element is biased in this starting position.

Der erfindungsgemäße Rollstuhl gestattet es somit, unter Berücksichtigung der anatomischen Gegebenheiten eine Verstellung von der Sitzposition in eine Liegeposition und/oder in eine Aufrichtposition zu ermöglichen. In der Aufrichtposition ist das Sitzelement fast vertikal aufgerichtet, beispielsweise in einem Winkel von 80° zur Horizontalen. Der Patient wird somit aufgerichtet. Gleiches gilt bei einem Hineinsetzen in den Rollstuhl. Der Patient kann anschließend in die Sitzposition zurückgefahren werden.The wheelchair according to the invention thus makes it possible to allow an adjustment from the sitting position to a reclining position and / or to an erecting position, taking into account the anatomical conditions. In the erect position, the seat element is erected almost vertically, for example at an angle of 80 ° to the horizontal. The patient is thus raised. The same applies to a putting into the wheelchair. The patient can then be returned to the sitting position.

Bei einer Ausrichtung des Sitzelements und des Rückenelements in eine Liegeposition ist es besonders einfach möglich, den Patienten beispielsweise in ein Krankenbett zu verlagern.With an alignment of the seat element and the back element in a lying position, it is particularly easy to move the patient, for example, in a hospital bed.

Es versteht sich, dass Beinstützen, Fußstützen, Armlehnen, Kopfstützen oder seitliche Abstützungen vorgesehen sein können, welche servomechanisch, elektrisch oder manuell verstellt werden können.It is understood that legrests, footrests, armrests, headrests or side supports can be provided which can be adjusted servomechanically, electrically or manually.

Im Folgenden wird die Erfindung anhand eines Ausführungsbeispiels in Verbindung mit der Zeichnung beschrieben. Dabei zeigt:

Fig. 1
eine schematische Seitenansicht der wichtigsten Funktionsteile des erfindungsgemäßen Rollstuhls in der Sitzposition,
Fig. 2
eine Seitenansicht, analog Fig. 1, in der Liegeposition,
Fig. 3
eine Seitenansicht in einer Zwischenposition zwischen Sitzposition (Fig. 1) und der in Fig. 4 dargestellten Aufrichtposition, und
Fig. 4
eine Seitenansicht in der Aufrichtposition.
In the following the invention will be described by means of an embodiment in conjunction with the drawing. Showing:
Fig. 1
a schematic side view of the main functional parts of the wheelchair according to the invention in the sitting position,
Fig. 2
a side view, analogous to FIG. 1, in the lying position,
Fig. 3
a side view in an intermediate position between the sitting position (Fig. 1) and the erecting position shown in FIG. 4, and
Fig. 4
a side view in the erect position.

Es versteht sich, dass aus Gründen der deutlicheren Darstellung und der Erläuterung des Grundprinzips auf die weitere Darstellung der Räder, des zugeordneten Rahmens, des Antriebs sowie weiterer Funktionsteile des Rollstuhls verzichtet wurde.It is understood that has been omitted for reasons of clarity and explanation of the basic principle on the further representation of the wheels, the associated frame, the drive and other functional parts of the wheelchair.

Der erfindungsgemäße Rollstuhl umfasst einen Grundrahmen 1, welcher mittels einer nur schematisch dargestellten Hubsäule 13 höhenverstellbar an einem Fahrwerk des Rollstuhls gelagert ist. Der vordere Bereich des Grundrahmens 1 ist abgewinkelt und trägt eine Schwenkachse 5, mittels derer ein Basisrahmen 4 schwenkbar an dem Grundrahmen 1 gelagert ist. Zur Verschwenkung weist der Basisrahmen 4 einen einstückig mit diesem ausgebildeten Schenkel 14 auf, dessen unteres Ende gelenkig mit einem Linearantrieb 15 gekoppelt ist, welcher wiederum an seinem hinteren Ende gelenkig mit dem Grundrahmen 1 verbunden ist, so wie dies beispielsweise aus der Fig. 3 deutlich ersichtlich ist. Durch eine Betätigung des Linearantriebs 15 ist es somit möglich, den Basisrahmen 4 um die Schwenkachse 5 zu verschwenken (siehe Vergleich der Fig. 1, 3 und 4).The wheelchair according to the invention comprises a base frame 1, which is mounted by means of a lifting column 13 only schematically shown height adjustable on a chassis of the wheelchair. The front portion of the base frame 1 is angled and carries a pivot axis 5, by means of which a base frame 4 is pivotally mounted on the base frame 1. For pivoting, the base frame 4 has an integrally formed therewith leg 14, whose lower end is pivotally coupled to a linear drive 15, which in turn is hingedly connected at its rear end to the base frame 1, as shown for example in FIG. 3 clearly is apparent. By actuating the linear drive 15, it is thus possible to pivot the base frame 4 about the pivot axis 5 (see comparison of FIGS. 1, 3 and 4).

Der vordere Bereich des Grundrahmens 1 ist weiterhin gelenkig mit einem Kopplungselement 10 verbunden, welches insgesamt drei Hebel umfasst, die gelenkig miteinander verbunden sind. Der vordere Bereich des unteren Hebels des Kopplungselements 10 ist, wie erwähnt, mit dem Grundrahmen 1 gelenkig gekoppelt (siehe Fig. 3). Der hintere Teil des Kopplungselements 10 ist mit einem mittleren Hebel gelenkig gekoppelt, welcher an einer Lagerstrebe 16 des Basisrahmens 4 schwenkbar gelagert ist. Mit dem mittleren Hebel ist gelenkig ein dritter Hebel des Kopplungselements 10 verbunden, welcher gelenkig an einem Schlitten 9 gelagert ist. Die gelenkige Verstellung der drei Hebel des Kopplungselements 10 ergibt sich insbesondere aus den Fig. 1, 3 und 4. Das Kopplungselement 10 wurde der Deutlichkeit halber in Fig. 2 nicht dargestellt.The front portion of the base frame 1 is further pivotally connected to a coupling element 10 which comprises a total of three levers which are hinged together. The front portion of the lower lever of the coupling member 10 is, as mentioned, hingedly coupled to the base frame 1 (see Fig. 3). The rear part of the coupling element 10 is pivotally coupled to a central lever, which is pivotally mounted on a bearing strut 16 of the base frame 4. With the middle lever, a third lever of the coupling element 10 is hingedly connected, which is articulated to a carriage 9. The articulated adjustment of the three levers of the coupling element 10 results in particular from FIGS. 1, 3 and 4. The coupling element 10 has not been shown in FIG. 2 for the sake of clarity.

Bei einer Verschwenkung des Basisrahmens 4 mittels des Linearantriebs 15 bewirkt somit das aus drei Hebeln bestehende Kopplungselement 10 eine Verschiebung des Schlittens 9 längs des Basisrahmens 4.When the base frame 4 is pivoted by means of the linear drive 15, the coupling element 10 consisting of three levers thus effects a displacement of the carriage 9 along the base frame 4.

Der Schlitten 9 umfasst einen vergrößerten Trägerteil, an welchem das Kopplungselement 10 gelenkig gelagert ist und welcher mittels eines Langlochs (siehe insbesondere Fig. 3 und 4) längs des Basisrahmens 4 verschiebbar ist. Der Schlitten 9 umfasst weiterhin einen länglichen vorderen Bereich, an dessen Endbereich eine Schwenkachse 6 ausgebildet ist, mittels derer verschwenkbar ein Sitzelement 2 gelagert ist. Bei einer Verschiebung des Schlittens 9 längs des Basisrahmens 4 wird somit das Sitzelement mitverschoben, so wie sich dies durch die Pfeile der Darstellungen ergibt.The carriage 9 comprises an enlarged carrier part, on which the coupling element 10 is articulated and which by means of a slot (see in particular Figs. 3 and 4) along the base frame 4 is displaceable. The carriage 9 further comprises an elongated front portion, at the end region of a pivot axis 6 is formed, by means of which a seat member 2 is pivotally mounted. With a displacement of the carriage 9 along the base frame 4 thus the seat member is also moved, as this results from the arrows of the illustrations.

An dem hinteren Bereich (Basisbereich) des Schlittens 9 ist eine Schwenkachse 8 ausgebildet, an welcher verschwenkbar ein Rückenrahmen 7 gelagert ist. Der Rückenrahmen 7 weist einen nach vorne (in der Sitzposition siehe Fig. 1) weisenden Kantelhebel 11 auf, welcher unter dem hinteren Bereich des Sitzelements 2 angeordnet ist. Bei einer Verschwenkung des Rückenrahmens 7, welcher das Rückenelement 3 trägt, um die Schwenkachse 8, erfolgt somit eine Kippung oder Kantelung des Sitzelements 2, so wie sich dies beispielsweise aus den Fig. 2 und 4 ergibt.At the rear region (base region) of the carriage 9, a pivot axis 8 is formed, on which a back frame 7 is pivotably mounted. The back frame 7 has a forwardly (in the seat position, see FIG. 1) facing Kantelhebel 11, which is arranged below the rear portion of the seat member 2. In a pivoting of the back frame 7, which carries the back member 3, about the pivot axis 8, thus, there is a tilting or tilting of the seat member 2, as can be seen for example in FIGS. 2 and 4.

Bei der in Fig. 2 gezeigten Liegestellung wird somit der hintere Bereich des Sitzelements 2 angehoben, so dass sich das Sitzelement 2 und das Rückenelement 3 in einer Liegeebene 17 befinden.In the case of the lying position shown in FIG. 2, the rear area of the seat element 2 is thus raised, so that the seat element 2 and the back element 3 are located in a lying plane 17.

An dem Rückenrahmen 2 ist verschiebbar das Rückenelement 3 gelagert. Dieses ist über ein bandartiges Kopplungselement 12 mit dem Schlitten 9 verbunden. Bei einer Verschwenkung des Rückenrahmens 7 um die Schwenkachse 8 relativ zu dem Schlitten 9 erfolgt somit zwangsweise eine Verschiebung des Rückenelements 3 durch das Kopplungselement 12 (Zugband).On the back frame 2, the back element 3 is slidably mounted. This is connected via a belt-like coupling element 12 to the carriage 9. With a pivoting of the back frame 7 about the pivot axis 8 relative to the carriage 9 is thus forcibly a displacement of the back member 3 by the coupling element 12 (drawstring).

In diesem Zusammenhang ist darauf hinzuweisen, dass sämtliche Bauelemente selbstverständlich paarweise oder symmetrisch aufgebaut sein können.In this context, it should be noted that all components can of course be constructed in pairs or symmetrically.

Wird somit das Rückenelement 3 von der Sitzposition (Fig. 1) zur Liegeposition (Fig. 2) verstellt, wird das Rückenelement 3 durch ein elastisches, im Einzelnen nicht dargestelltes Vorspannelement (Zugfeder, Gummielement oder ähnliches) in der in Fig. 2 gezeigten Pfeilrichtung nach vorne verschoben. Bei einer Verschwenkung in die Sitzposition (Fig. 1), erfolgt eine Verschiebung des Rückenelements 3 nach oben, so wie dies durch den Pfeil in Fig. 1 dargestellt ist, da das Kopplungselement 12 eine geeignete Zugkraft aufbringt. Die Verstellung des Rückenelements 3 um die Schwenkachse 8 erfolgt mittels eines nur schematisch dargestellten Servomotors.If the back element 3 is thus moved from the sitting position (FIG. 1) to the lying position (FIG. 2), the back element 3 is replaced by an elastic, not shown in detail biasing element (tension spring, rubber element or the like) in the direction of arrow shown in FIG moved forward. When pivoting into the sitting position (FIG. 1), the back element 3 is displaced upward, as shown by the arrow in FIG. 1, since the coupling element 12 applies a suitable tensile force. The adjustment of the back member 3 about the pivot axis 8 by means of a servo motor shown only schematically.

Bei dem Übergang in die Aufrichtposition (Fig. 3 und 4) werden der Schlitten 9 sowie das Sitzelement 2 nach hinten verschoben, so wie dies durch die Pfeile dargestellt ist. Durch die dabei auftretende Freigabe des Kopplungselements 12 wird das Rückenelement 3, so wie dies durch den Pfeil in Fig. 3 gezeigt ist, nach unten durch die beschriebene elastische Vorspannung bewegt. Die Fig. 4 zeigt die Aufrichtposition.During the transition to the erecting position (FIGS. 3 and 4), the carriage 9 and the seat element 2 are displaced to the rear, as shown by the arrows. Due to the occurring release of the coupling element 12, the back element 3, as shown by the arrow in Fig. 3, moved downward by the described elastic bias. 4 shows the erecting position.

Es versteht sich, dass Fußplatten, Kopfstützen oder ähnliches in entsprechender Weise, entweder servomotorisch oder mechanisch, zwangsgekoppelt mitbewegt werden.It is understood that foot plates, headrests or the like in a corresponding manner, either servo-motor or mechanical, are moved forcibly coupled.

Der übrige Aufbau des Rollstuhls kann so ausgebildet sein, wie in dem deutschen Patent 10 2005 020 914 beschrieben. Hiermit wird zur Ergänzung der Beschreibung voll inhaltlich auf die Veröffentlichung der Patentschrift Bezug genommen.The rest of the structure of the wheelchair may be formed as in the German Patent 10 2005 020 914 described. This is to supplement the description with respect to the content of the publication of the patent reference.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Grundrahmenbase frame
22
Sitzelementseat element
33
Rückenelementback element
44
Basisrahmenbase frame
55
Schwenkachseswivel axis
66
Schwenkachseswivel axis
77
Rückenrahmenback frame
88th
Schwenkachseswivel axis
99
Schlittencarriage
1010
Kopplungselementcoupling element
1111
KantelhebelKantelhebel
1212
Kopplungselementcoupling element
1313
HubsäuleLifting column
1414
Schenkelleg
1515
Linearantrieblinear actuator
1616
Lagerstrebebearing strut
1717
Liegeebenelying plane

Claims (16)

Rollstuhl mit einem Grundrahmen (1), an welchem mittels eines Basisrahmens (4) ein Sitzelement und ein Rückenelement (3) gelagert sind,
wobei der Basisrahmen (4) um eine vordere Schwenkachse (5) schwenkbar ist,
wobei das Sitzelement (2) um eine vordere Schwenkachse (6) schwenkbar und längs des Basisrahmens (4) verschiebbar ist,
wobei das Rückenelement (3) verschiebbar an einem Rückenrahmen (7) gelagert ist, welcher schwenkbar (8) an einem Schlitten (9) gelagert ist, welcher längsverschiebbar an dem Basisrahmen (4) gelagert ist.Wheelchair having a base frame (1) on which a seat element and a back element (3) are mounted by means of a base frame (4),
wherein the base frame (4) is pivotable about a front pivot axis (5),
wherein the seat element (2) is pivotable about a front pivot axis (6) and displaceable along the base frame (4),
wherein the back element (3) is slidably mounted on a back frame (7) which is pivotally mounted (8) on a carriage (9), which is mounted longitudinally displaceable on the base frame (4). Rollstuhl nach Anspruch 1, dadurch gekennzeichnet, dass der Schlitten (9) beim Übergang von einer Sitzposition in eine Aufstehposition verschiebbar ist.Wheelchair according to claim 1, characterized in that the carriage (9) is displaceable in the transition from a sitting position to a standing position. Rollstuhl nach Anspruch 2, dadurch gekennzeichnet, dass der Schlitten (9) mittels eines Kopplungselements (10) verschoben wird.Wheelchair according to claim 2, characterized in that the carriage (9) is displaced by means of a coupling element (10). Rollstuhl nach Anspruch 3, dadurch gekennzeichnet, dass das Kopplungselement (10) ein Mehrgelenkgestänge bildet, welches zwischen dem Grundrahmen (1), dem Basisrahmen (4) und dem Schlitten (9) gelenkig gekoppelt ist.A wheelchair according to claim 3, characterized in that the coupling element (10) forms a multi-joint linkage, which is articulated between the base frame (1), the base frame (4) and the carriage (9). Rollstuhl nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Schwenkachse (6) an dem Schlitten (9) angeordnet ist.Wheelchair according to one of claims 1 to 4, characterized in that the pivot axis (6) on the carriage (9) is arranged. Rollstuhl nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Rückenrahmen (7) einen Kantelhebel (11) umfasst, welcher bei Verschwenkung des Rückenrahmens (7) relativ zu dem Schlitten (9) um die Schwenkachse (8) des Sitzelements (2) kippt.Wheelchair according to one of claims 1 to 5, characterized in that the back frame (7) comprises a Kantelhebel (11), which upon pivoting of the Back frame (7) relative to the carriage (9) about the pivot axis (8) of the seat element (2) tilts. Rollstuhl nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Verschiebung des Rückenelements (3) relativ zu dem Rückenrahmen (7) bei Verschwenkung um die Schwenkachse (8) mittels eines Kopplungselements (12) erfolgt.Wheelchair according to one of claims 1 to 6, characterized in that the displacement of the back element (3) relative to the back frame (7) when pivoting about the pivot axis (8) by means of a coupling element (12). Rollstuhl nach Anspruch 7, dadurch gekennzeichnet, dass das Kopplungselement (12) mit dem Schlitten (9) und dem Rückenelement (3) verbunden ist.Wheelchair according to claim 7, characterized in that the coupling element (12) with the carriage (9) and the back element (3) is connected. Rollstuhl nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass das Kopplungselement (12) in Form eines Zugbandes ausgebildet ist.Wheelchair according to claim 7 or 8, characterized in that the coupling element (12) is designed in the form of a drawstring. Rollstuhl nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass das Rückenelement (3) mittels eines elastischen Elements in eine Ausgangsposition vorgespannt ist.Wheelchair according to one of claims 1 to 9, characterized in that the back element (3) is biased by means of an elastic element in an initial position. Rollstuhl nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass das Sitzelement (2) und die Rückenlehne (3) in eine im Wesentlichen horizontale und zueinander fluchtende Liegeposition (17) bringbar sind.Wheelchair according to one of claims 1 to 10, characterized in that the seat element (2) and the backrest (3) in a substantially horizontal and mutually aligned reclining position (17) can be brought. Rollstuhl nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass das Sitzelement (2) und die Rückenlehne (3) in eine im Wesentlichen vertikale Aufstehposition bringbar sind.Wheelchair according to one of claims 1 to 11, characterized in that the seat element (2) and the backrest (3) can be brought into a substantially vertical standing position. Rollstuhl mit einem Grundrahmen (1), an welchem ein Sitzelement (2) und ein Rückenelement (3) gelagert sind, wobei das Sitzelement (2) und Rückenelement (3) verschiebbar gelagert sind.Wheelchair with a base frame (1), on which a seat element (2) and a back element (3) are mounted, wherein the seat element (2) and back element (3) are displaceably mounted. Rollstuhl nach Anspruch 13, dadurch gekennzeichnet, dass das Sitzelement (2) und das Rückenelement (3) bei Verstellung zwischen einer Aufrichtposition, einer Liegeposition und/oder einer Sitzposition verschiebbar angeordnet sind.Wheelchair according to claim 13, characterized in that the seat element (2) and the back element (3) are displaceably arranged on adjustment between an erecting position, a lying position and / or a sitting position. Rollstuhl nach Anspruch 14, dadurch gekennzeichnet, dass das Sitzelement (2) und das Rückenelement (3) mechanisch gekoppelt und verschiebbar angeordnet sind.Wheelchair according to claim 14, characterized in that the seat element (2) and the back element (3) are arranged mechanically coupled and displaceable. Rollstuhl nach einem der Ansprüche 13 bis 15 mit den Merkmalen der Ansprüche 1 bis 12.Wheelchair according to one of claims 13 to 15 with the features of claims 1 to 12.
EP20070004820 2006-03-14 2007-03-08 Wheelchair Not-in-force EP1834619B8 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610011710 DE102006011710B3 (en) 2006-03-14 2006-03-14 Wheel-chair for heavy patients with limited motor activity, has back-support movably mounted on slide

Publications (4)

Publication Number Publication Date
EP1834619A2 true EP1834619A2 (en) 2007-09-19
EP1834619A3 EP1834619A3 (en) 2008-01-23
EP1834619B1 EP1834619B1 (en) 2012-07-04
EP1834619B8 EP1834619B8 (en) 2012-08-15

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ID=38268420

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DE (1) DE102006011710B3 (en)
NO (1) NO20071323L (en)

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US10322048B2 (en) 2017-01-31 2019-06-18 NextHealth, LLC Systems and methods for powered wheelchair personal transfer
DE102017122378A1 (en) * 2017-09-27 2019-03-28 Göhler Sitzmöbel GmbH seating
KR102321628B1 (en) * 2018-07-09 2021-11-04 주식회사 바디프랜드 A massage device including improved structure

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Also Published As

Publication number Publication date
EP1834619B1 (en) 2012-07-04
NO20071323L (en) 2007-09-17
EP1834619A3 (en) 2008-01-23
EP1834619B8 (en) 2012-08-15
DE102006011710B3 (en) 2007-08-02

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