EP1719485A1 - Electric wheel chair - Google Patents

Electric wheel chair Download PDF

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Publication number
EP1719485A1
EP1719485A1 EP06004154A EP06004154A EP1719485A1 EP 1719485 A1 EP1719485 A1 EP 1719485A1 EP 06004154 A EP06004154 A EP 06004154A EP 06004154 A EP06004154 A EP 06004154A EP 1719485 A1 EP1719485 A1 EP 1719485A1
Authority
EP
European Patent Office
Prior art keywords
seat
frame
electric wheelchair
wheelchair according
adjusting unit
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
EP06004154A
Other languages
German (de)
French (fr)
Other versions
EP1719485B1 (en
Inventor
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
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Application filed by Meyra Wilhelm Meyer GmbH and Co KG filed Critical Meyra Wilhelm Meyer GmbH and Co KG
Priority to PL06004154T priority Critical patent/PL1719485T3/en
Publication of EP1719485A1 publication Critical patent/EP1719485A1/en
Application granted granted Critical
Publication of EP1719485B1 publication Critical patent/EP1719485B1/en
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Anticipated expiration legal-status Critical

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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
    • A61G5/042—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
    • A61G5/006—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
    • A61G5/1059—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
    • A61G5/1075—Arrangements for adjusting the seat tilting the whole seat backwards
    • 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
    • A61G5/12—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

Definitions

  • the invention relates to a power wheelchair according to the features of claim 1.
  • the invention relates to an electric wheelchair with a base frame, on which front drive wheels and rear steering wheels are mounted.
  • the drive wheels can be driven by two motors, so that a drive motor is provided for each front drive wheel.
  • the front drive wheels and the rear steering wheels may be spring-loaded by adjustable spring force so that all four wheels are in contact with the ground.
  • the wheels can be hung individually on the frame.
  • the invention has for its object to provide a power wheelchair of the type mentioned, in which a cost-effective manufacturability and simple, reliable operation, a variable adjustment and adjustment of the seat is possible.
  • the base frame of the power wheelchair first carries a lifting column, for example, an electric lifting column, by means of which the seat height is adjustable.
  • the seat can thus be moved from a relatively low driving position to the desired height.
  • the invention provides that on the base frame an intermediate frame is mounted, which in turn supports a seat frame.
  • a seat frame On the base frame an intermediate frame is mounted, which in turn supports a seat frame.
  • three frame elements or frame groups are stored at the top of the lifting column, which are individually movable and adjustable to each other. This opens up the possibility according to the invention to adjust the seat individually in its position. It is particularly advantageous if the base frame, the intermediate frame and the seat frame form a scissor mechanism.
  • the base frame, the intermediate frame and the seat frame By adjusting the base frame, the intermediate frame and the seat frame relative to each other about the two horizontal pivot axes results in a variety of Einstellvarin that can be selected either individually or in combination. It is thus possible to adjust the seat so that (with backward tilt or tilt of the seat), a reclining position or a recliner-like position can be taken, while in an inclination of the seat forward an upright or standing position can be selected.
  • the reclining position is for decubitus prophylaxis, while the upright or standing position may allow the wheelchair user to straighten the upper body to grasp, for example, higher lying objects.
  • the first axis viewed in the direction of travel
  • the second axis seen in the direction of travel
  • the adjusting units provided for relative movement between the base frame, the intermediate frame and the seat frame are electrically operated and are designed for example as telescopic linear actuators. These require little space and are therefore easy to install. On the other hand, larger adjustment paths can be realized with favorable leverage forces, so that the adjustment units or drives can be dimensioned cost-effectively and weight-saving.
  • a servomotor-adjustable legrest is arranged on the base frame, the inclination and / or the length of which are adaptable by means of an adjusting unit.
  • the individual adjustment units and actuation modules are coordinated with one another in such a way that optimal adaptation to the posture of the wheelchair user results in each case.
  • the seat frame, a backrest is mounted so that it is adjustable in its inclination relative to the seat or the seat frame, for example, to be able to adjust the inclination according to a tilt of the seat and a transition to a reclining position ,
  • the electric wheelchair according to the invention initially comprises a base frame 3, on which front drive wheels 1 and rear steering wheels 2 are mounted.
  • the design of the base frame, the bearing of the drive wheels and steering wheels and the drive is known in principle from the prior art, so that can be dispensed with detailed explanations at this point.
  • the wheelchair according to the invention comprises a lifting column 6 mounted on the base frame 3. This is preferably telescopically telescopically and electrically driven.
  • a base frame 7 is fixed, which comprises a rearwardly extending horizontal part and an angled front part, which is inclined only slightly to the vertical.
  • a first horizontal Axis 8 is provided, on which an intermediate frame 9 is pivotally mounted.
  • the intermediate frame 9 extends in Z-shaped angled both forward and slightly backwards.
  • the front, free end of the intermediate frame 9 is, as shown particularly in FIG. 1 can be seen, slightly angled upward to support a second horizontal axis 10, on which in turn pivotally a seat frame 11 is mounted.
  • the seat frame 11 comprises a substantially horizontal leg, to which a seat 5 is fixed, as well as an obliquely downwardly angled free leg, which projects beyond the articulation point of the second horizontal axis 10.
  • the base frame, the intermediate frame and the seat frame are each U-shaped or Herstrebig formed to ensure a tilting security and Verkantterrorism and to store the seat 5 in a suitable manner. It is understood that within the scope of the invention various modifications are conceivable, for example T-shaped configurations of the base frame, the intermediate frame and / or the seat frame. This can be done depending on the structural dimensions and the spatial conditions.
  • a backrest 4 is mounted on the seat frame 11 in its rear region, which is adjustable in its inclination about a horizontal axis 15.
  • a first adjustment unit 12 is arranged between the front, downwardly facing end portion or free leg of the base frame 7 and a front end portion of the intermediate frame 9, a first adjustment unit 12 is arranged.
  • the base frame 7 has a pivot point 16.
  • the intermediate frame 9 is provided with a pivot point 17 in order to ensure the pivotability of the first adjustment unit 12.
  • a second adjusting unit 13 is provided, which is connected at the articulation points 18 and 19 with a rear portion of the intermediate frame 9 and an end portion of the angled front end of the seat frame 11.
  • An actuation of the second adjustment unit 13 thus leads to a pivoting of the seat frame 11 relative to the intermediate frame 9. This results in the possibility of tilting the seat 5 forward when the second adjustment unit 13 is shortened in length, for example relative to the in Figs. 1 and 4 shown position.
  • FIG. 5 further shows the articulation of a legrest 14 at the front end region of the seat frame 11.
  • the assisting support 14 can be adjusted in its inclination by means of an adjusting unit (not shown in detail).
  • the legrest 14 is adjustable in length.
  • Fig. 1 shows, for example, the maximum height, which can be realized thereby and which may be for example 250 mm.
  • the wheelchair according to the invention thus enables a seat height adjustment in different heights in combination with a righting mechanism and a Kantel mechanism. It is thus possible according to the invention, by means of the lifting column and the first or the second adjustment to set movements that lead to the erection of the user of the wheelchair, wherein the coordination of the individual movements of the lifting column and the first and the second adjustment formed servo drives (and optionally further servo drives) can be implemented and coordinated by means of a controller. All adjustment and adjustment are functionally reliable and easy to implement and can for example be coordinated with each other via a common control to realize the fastest possible, energy-saving and comfortable for the user setting the various wheelchair positions.

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  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Organic Insulating Materials (AREA)
  • Hybrid Cells (AREA)
  • Inert Electrodes (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Electron Sources, Ion Sources (AREA)
  • Automatic Cycles, And Cycles In General (AREA)

Abstract

Electric wheelchair comprises a base chassis (3) supporting a lifting column (6) with a frame (7) fixed to the free end region. An intermediate frame (9) pivots about a first horizontal axle (8) and a seat frame (11) pivots about a second horizontal axis (10). The seat frame supports a seat (5). Preferred Features: The frame, intermediate frame and the seat frame form a shearing mechanism. An adjusting unit is arranged between the frame and intermediate frame.

Description

Die Erfindung bezieht sich auf einen Elektrorollstuhl gemäß den Merkmalen des Anspruchs 1.The invention relates to a power wheelchair according to the features of claim 1.

Im Einzelnen bezieht sich die Erfindung auf einen Elektrorollstuhl mit einem Grundrahmen, an welchem vordere Antriebsräder sowie hintere Lenkräder gelagert sind. Die Antriebsräder können zwei-motorig angetrieben sein, so dass ein Antriebsmotor für jedes vordere Antriebsrad vorgesehen ist. Die vorderen Antriebsräder und die hinteren Lenkräder können durch einstellbare Federkraft von Federbeinen so abfedert sein, dass alle vier Räder Bodenkontakt haben. Die Räder können einzeln am Rahmen aufgehängt sein. Insofern liegt eine Grundkonstruktion vor, welche aus dem Stand der Technik in unterschiedlichsten Ausgestaltungsformen bekannt ist.In detail, the invention relates to an electric wheelchair with a base frame, on which front drive wheels and rear steering wheels are mounted. The drive wheels can be driven by two motors, so that a drive motor is provided for each front drive wheel. The front drive wheels and the rear steering wheels may be spring-loaded by adjustable spring force so that all four wheels are in contact with the ground. The wheels can be hung individually on the frame. In this respect, there is a basic construction, which is known from the prior art in a variety of embodiments.

Der Erfindung liegt die Aufgabe zugrunde, einen Elektrorollstuhl der eingangs genannten Art zu schaffen, bei welchem bei kostengünstiger Herstellbarkeit und einfacher, betriebssicherer Bedienbarkeit eine variable Einstellung und Verstellung des Sitzes möglich ist.The invention has for its object to provide a power wheelchair of the type mentioned, in which a cost-effective manufacturability and simple, reliable operation, a variable adjustment and adjustment of the seat is possible.

Erfindungsgemäß wird die Aufgabe durch die Merkmalskombination des Hauptanspruchs gelöst. Die Unteransprüche zeigen weitere vorteilhafte Ausgestaltungen der Erfindung.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 Grundrahmen des Elektrorollstuhls zunächst eine Hubsäule trägt, beispielsweise eine Elektro-Hubsäule, mittels derer die Sitzhöhe einstellbar ist. Der Sitz kann somit von einer relativ tiefen Fahrposition in die gewünschte Höhe verfahren werden.According to the invention it is thus provided that the base frame of the power wheelchair first carries a lifting column, for example, an electric lifting column, by means of which the seat height is adjustable. The seat can thus be moved from a relatively low driving position to the desired height.

Um nicht lediglich die Höhe des Sitzes verändern zu können, sondern auch weitere Einstellungen des Sitzes (Neigen, Kanteln etc.), ist erfindungsgemäß vorgesehen, dass an dem Basisrahmen ein Zwischenrahmen gelagert ist, welcher wiederum einen Sitzrahmen lagert. Somit sind am oberen Bereich der Hubsäule drei Rahmen-Elemente oder Rahmen-Gruppen gelagert, die einzeln zueinander bewegbar und verstellbar sind. Hieraus eröffnet sich erfindungsgemäß die Möglichkeit, den Sitz individuell in seiner Position einzustellen. Besonders vorteilhaft ist es dabei, wenn der Basisrahmen, der Zwischenrahmen und der Sitzrahmen einen Scherenmechanismus bilden.In order to not only change the height of the seat, but also other settings of the seat (tilting, canting etc.), the invention provides that on the base frame an intermediate frame is mounted, which in turn supports a seat frame. Thus, three frame elements or frame groups are stored at the top of the lifting column, which are individually movable and adjustable to each other. This opens up the possibility according to the invention to adjust the seat individually in its position. It is particularly advantageous if the base frame, the intermediate frame and the seat frame form a scissor mechanism.

Durch die Verstellung des Basisrahmens, des Zwischenrahmens und des Sitzrahmens relativ zueinander um die beiden horizontalen Schwenkachsen ergibt sich eine Vielzahl von Einstellvarianten, die entweder einzeln oder in Kombination gewählt werden können. Es ist somit möglich, den Sitz so zu verstellen, dass (bei rückwärtiger Neigung oder Kantelung des Sitzes) eine Liegeposition oder liegeähnliche Position eingenommen werden kann, während bei einer Neigung des Sitzes nach vorne eine Aufricht- oder Stehposition wählbar ist. Die Liegeposition dient beispielsweise zur Dekubitus-Prophylaxe, während die Aufricht- oder Stehposition es dem Rollstuhlbenutzer gestatten kann, den Oberkörper aufzurichten, um beispielsweise höher liegende Gegenstände zu greifen.By adjusting the base frame, the intermediate frame and the seat frame relative to each other about the two horizontal pivot axes results in a variety of Einstellvarianten that can be selected either individually or in combination. It is thus possible to adjust the seat so that (with backward tilt or tilt of the seat), a reclining position or a recliner-like position can be taken, while in an inclination of the seat forward an upright or standing position can be selected. For example, the reclining position is for decubitus prophylaxis, while the upright or standing position may allow the wheelchair user to straighten the upper body to grasp, for example, higher lying objects.

Besonders günstig ist es, wenn erfindungsgemäß die erste Achse in Fahrtrichtung gesehen hinten und die zweite Achse in Fahrtrichtung gesehen vorne angeordnet sind. Es ist jedoch offensichtlich, dass im Rahmen der Erfindung auch andere Ausgestaltungen des scherenähnlichen, durch den Basisrahmen, den Zwischenrahmen und den Sitzrahmen gebildeten Mechanismus möglich sind.It is particularly advantageous if, according to the invention, the first axis, viewed in the direction of travel, is arranged at the rear and the second axis, seen in the direction of travel, at the front. However, it is obvious that within the scope of the invention, other embodiments of the scissor-like mechanism formed by the base frame, the intermediate frame and the seat frame are possible.

Weiterhin ist es besonders vorteilhaft, wenn die Verstelleinheiten, die zur Relativbewegung zwischen dem Basisrahmen, dem Zwischenrahmen und dem Sitzrahmen vorgesehen sind, elektrisch betätigbar sind und beispielsweise als teleskopierbare Linearantriebe ausgebildet sind. Diese benötigen wenig Platz und sind somit einfach einbaubar. Zum anderen können größere Verstellwege bei günstigen Hebelkräften realisiert werden, so dass die Verstelleinheiten oder Antriebe kostengünstig und gewichtssparend dimensioniert werden können.Furthermore, it is particularly advantageous if the adjusting units provided for relative movement between the base frame, the intermediate frame and the seat frame are electrically operated and are designed for example as telescopic linear actuators. These require little space and are therefore easy to install. On the other hand, larger adjustment paths can be realized with favorable leverage forces, so that the adjustment units or drives can be dimensioned cost-effectively and weight-saving.

Weiterhin ist es vorteilhaft, wenn am Basisrahmen eine servomotorisch verstellbare Beinstütze angeordnet ist, deren Neigung und/oder deren Länge mittels einer Verstelleinheit anpassbar sind.Furthermore, it is advantageous if a servomotor-adjustable legrest is arranged on the base frame, the inclination and / or the length of which are adaptable by means of an adjusting unit.

Erfindungsgemäß versteht es sich, dass die einzelnen Verstelleinheiten und Betätigungsmodule so aufeinander abgestimmt sind, dass sich jeweils eine optimale Anpassung an die Körperhaltung des Rollstuhlbenutzers ergibt. Hierzu ist es auch günstig, wenn am Sitzrahmen eine Rückenlehne so gelagert ist, dass diese in ihrer Neigung relativ zu dem Sitz bzw. dem Sitzrahmen verstellbar ist, um beispielsweise bei einer Kantelung des Sitzes und einem Übergang in eine Liegeposition die Neigung entsprechend anpassen zu können.According to the invention, it is understood that the individual adjustment units and actuation modules are coordinated with one another in such a way that optimal adaptation to the posture of the wheelchair user results in each case. For this purpose, it is also advantageous if the seat frame, a backrest is mounted so that it is adjustable in its inclination relative to the seat or the seat frame, for example, to be able to adjust the inclination according to a tilt of the seat and a transition to a reclining position ,

Erfindungsgemäß ist es somit zusätzlich zu der Möglichkeit, die Höhe des Sitzes durch die Hubsäule zu bestimmen, möglich, eine zusätzliche Höhenkontrolle des Sitzes durch Verstellung des Basisrahmens, des Zwischenrahmens und des Sitzrahmens zueinander vorzusehen. Es ergeben sich somit zwei unabhängige Sitzhöheneinstellungen, welche entweder gemeinsam (gleichzeitig) oder unabhängig voneinander vorgenommen werden können.According to the invention, it is thus possible in addition to the possibility of determining the height of the seat by the lifting column, to provide an additional height control of the seat by adjusting the base frame, the intermediate frame and the seat frame to each other. This results in two independent seat height settings, which can be done either together (simultaneously) or independently.

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

Fig. 1
eine schematische Teil-Seitenansicht eines Ausführungsbeispiels des erfindungsgemäßen Rollstuhls in einer maximalen Sitzhöhe,
Fig. 2
eine Darstellung des Rollstuhls in einer Kantelstellung des Sitzes,
Fig. 3
eine Darstellung des Rollstuhls analog zu Fig. 1 und Fig. 2 in einer Sitzhöheneinstellung bei maximaler Betätigung der Hubsäule,
Fig. 4
eine weitere Darstellung in niedrigster Sitzhöhe, und
Fig. 5
eine schematische Seitenansicht des gesamten Elektrorollstuhls.
In the following the invention will be described by means of an embodiment in conjunction with the drawing. Showing:
Fig. 1
1 is a schematic partial side view of an embodiment of the wheelchair according to the invention in a maximum seat height,
Fig. 2
a representation of the wheelchair in a Kantelstellung of the seat,
Fig. 3
a representation of the wheelchair analogous to FIG. 1 and FIG. 2 in a seat height adjustment with maximum actuation of the lifting column,
Fig. 4
another representation in lowest seat height, and
Fig. 5
a schematic side view of the entire power wheelchair.

Der erfindungsgemäße Elektrorollstuhl umfasst zunächst einen Grundrahmen 3, an welchem vordere Antriebsräder 1 sowie hintere Lenkräder 2 gelagert sind. Die Ausgestaltung des Grundrahmens, der Lagerung der Antriebsräder und Lenkräder sowie des Antriebs ist aus dem Stand der Technik grundsätzlich bekannt, so dass auf detaillierte Erläuterungen an dieser Stelle verzichtet werden kann.The electric wheelchair according to the invention initially comprises a base frame 3, on which front drive wheels 1 and rear steering wheels 2 are mounted. The design of the base frame, the bearing of the drive wheels and steering wheels and the drive is known in principle from the prior art, so that can be dispensed with detailed explanations at this point.

Der erfindungsgemäße Rollstuhl umfasst eine an dem Grundrahmen 3 gelagerte Hubsäule 6. Diese ist bevorzugterweise zweifach teleskopierbar und elektrisch antreibbar.The wheelchair according to the invention comprises a lifting column 6 mounted on the base frame 3. This is preferably telescopically telescopically and electrically driven.

Am oberen Endbereich der Hubsäule 6 ist ein Basisrahmen 7 befestigt, welcher einen sich nach hinten erstreckenden horizontalen Teil sowie einen abgewinkelten vorderen Teil umfasst, welcher nur geringfügig zur Vertikalen geneigt ist.At the upper end of the lifting column 6, a base frame 7 is fixed, which comprises a rearwardly extending horizontal part and an angled front part, which is inclined only slightly to the vertical.

An dem Basisrahmen 7 ist in seinem hinteren Bereich, welcher geringfügig nach oben abgewinkelt ist, eine erste horizontale Achse 8 vorgesehen, an welcher schwenkbar ein Zwischenrahmen 9 gelagert ist. Der Zwischenrahmen 9 erstreckt sich in Z-förmiger Abwinkelung sowohl nach vorne als auch geringfügig nach hinten. Das vordere, freie Ende des Zwischenrahmens 9 ist, wie insbesondere aus Fig. 1 ersichtlich ist, geringfügig nach oben abgewinkelt, um eine zweite horizontale Achse 10 zu lagern, an welcher wiederum schwenkbar ein Sitzrahmen 11 gelagert ist. Der Sitzrahmen 11 umfasst einen im Wesentlichen horizontalen Schenkel, an welchem ein Sitz 5 befestigt ist, sowie einen schräg nach unten abgewinkelten freien Schenkel, der über den Anlenkpunkt der zweiten horizontalen Achse 10 vorsteht.On the base frame 7 is in its rear region, which is slightly angled upwards, a first horizontal Axis 8 is provided, on which an intermediate frame 9 is pivotally mounted. The intermediate frame 9 extends in Z-shaped angled both forward and slightly backwards. The front, free end of the intermediate frame 9 is, as shown particularly in FIG. 1 can be seen, slightly angled upward to support a second horizontal axis 10, on which in turn pivotally a seat frame 11 is mounted. The seat frame 11 comprises a substantially horizontal leg, to which a seat 5 is fixed, as well as an obliquely downwardly angled free leg, which projects beyond the articulation point of the second horizontal axis 10.

Es versteht sich, dass der Basisrahmen, der Zwischenrahmen und der Sitzrahmen jeweils U-förmig oder mehrstrebig ausgebildet sind, um eine Kippsicherheit und Verkantsicherheit zu gewährleisten und um den Sitz 5 in geeigneter Weise zu lagern. Dabei versteht es sich, dass im Rahmen der Erfindung vielfältige Modifikationen denkbar sind, beispielsweise T-förmige Ausgestaltungen des Basisrahmens, des Zwischenrahmens und/oder des Sitzrahmens. Dies kann in Abhängigkeit von den baulichen Abmessungen und den räumlichen Gegebenheiten erfolgen.It is understood that the base frame, the intermediate frame and the seat frame are each U-shaped or mehrstrebig formed to ensure a tilting security and Verkantsicherheit and to store the seat 5 in a suitable manner. It is understood that within the scope of the invention various modifications are conceivable, for example T-shaped configurations of the base frame, the intermediate frame and / or the seat frame. This can be done depending on the structural dimensions and the spatial conditions.

Wie die Fig. 5 zeigt, ist an dem Sitzrahmen 11 in dessen hinterem Bereich eine Rückenlehne 4 gelagert, welche um eine horizontale Achse 15 in ihrer Neigung verstellbar ist.As shown in FIG. 5, a backrest 4 is mounted on the seat frame 11 in its rear region, which is adjustable in its inclination about a horizontal axis 15.

Zwischen dem vorderen, nach unten weisenden Endbereich oder freien Schenkel des Basisrahmens 7 und einem vorderen Endbereich des Zwischenrahmens 9 ist eine erste Verstelleinheit 12 angeordnet. Hierzu weist der Basisrahmen 7 einen Anlenkpunkt 16 auf. In analoger Weise ist der Zwischenrahmen 9 mit einem Anlenkpunkt 17 versehen, um die Schwenkbarkeit der ersten Verstelleinheit 12 zu gewährleisten.Between the front, downwardly facing end portion or free leg of the base frame 7 and a front end portion of the intermediate frame 9, a first adjustment unit 12 is arranged. For this purpose, the base frame 7 has a pivot point 16. In an analogous manner, the intermediate frame 9 is provided with a pivot point 17 in order to ensure the pivotability of the first adjustment unit 12.

Diese ist teleskopisch ausgebildet und in Form eines elektrisch betätigbaren Linearelements ausgestaltet. Es versteht sich, dass die Anlenkpunkte 16 und 17, ebenso wie die nachfolgend noch zu beschreibenden Anlenkpunkte 18 und 19 als Achsen ausgebildet sein können, so wie dies üblicherweise aus dem Stand der Technik bekannt ist.This is formed telescopically and designed in the form of an electrically actuated linear element. It goes without saying that the articulation points 16 and 17, as well as the articulation points 18 and 19 to be described below, can be designed as axles, as is conventionally known from the prior art.

Durch Betätigung der ersten Verstelleinheit 12 erfolgt eine Kantelung und/oder Neigung des Sitzes nach hinten, so wie dies beispielsweise in Fig. 2 gezeigt ist.By actuation of the first adjustment unit 12 takes place a tilting and / or inclination of the seat to the rear, as shown for example in Fig. 2.

Weiterhin ist eine zweite Verstelleinheit 13 vorgesehen, welche an den Anlenkpunkten 18 und 19 mit einem hinteren Bereich des Zwischenrahmens 9 und einem Endbereich des abgewinkelten vorderen Endes des Sitzrahmens 11 verbunden ist. Eine Betätigung der zweiten Verstelleinheit 13 führt somit zu einer Verschwenkung des Sitzrahmens 11 relativ zu dem Zwischenrahmen 9. Hierdurch ergibt sich die Möglichkeit, den Sitz 5 nach vorne zu kippen, wenn die zweiten Verstelleinheit 13 in ihrer Länge verkürzt wird, beispielsweise relativ zu der in den Fig. 1 und 4 gezeigten Stellung.Furthermore, a second adjusting unit 13 is provided, which is connected at the articulation points 18 and 19 with a rear portion of the intermediate frame 9 and an end portion of the angled front end of the seat frame 11. An actuation of the second adjustment unit 13 thus leads to a pivoting of the seat frame 11 relative to the intermediate frame 9. This results in the possibility of tilting the seat 5 forward when the second adjustment unit 13 is shortened in length, for example relative to the in Figs. 1 and 4 shown position.

Die Fig. 5 zeigt weiterhin die Anlenkung einer Beinstütze 14 am vorderen Endbereich des Sitzrahmens 11. Die Beistütze 14 kann mittels einer im Einzelnen nicht dargestellten Verstelleinheit in ihrer Neigung verstellt werden. Weiterhin ist die Beinstütze 14 in ihrer Länge einstellbar.5 further shows the articulation of a legrest 14 at the front end region of the seat frame 11. The assisting support 14 can be adjusted in its inclination by means of an adjusting unit (not shown in detail). Furthermore, the legrest 14 is adjustable in length.

Bei dem erfindungsgemäßen Rollstuhl ist es somit möglich, ausgehend von der in Fig. 4 gezeigten niedrigsten Sitzhöhe, durch Betätigung der Hubsäule 6 den Sitz anzuheben, beispielsweise um einen Betrag von 300 mm. Unabhängig hiervon kann durch eine Betätigung der ersten Verstelleinheit 12 und der zweiten Verstelleinheit 13 der durch den Basisrahmen 7, den Zwischenrahmen 9 und den Sitzrahmen 11 gebildete scherenartige Mechanismus in seiner Höhe verändert werden. Die Fig. 1 zeigt beispielsweise die maximale Höhe, welche hierdurch realisiert werden kann und welche beispielsweise 250 mm betragen kann.In the wheelchair according to the invention it is thus possible, starting from the lowest seat height shown in Fig. 4, by raising the lifting column 6 to raise the seat, for example by an amount of 300 mm. Regardless of this, by actuating the first adjusting unit 12 and the second adjusting unit 13, the one formed by the base frame 7, the intermediate frame 9 and the seat frame 11 Scissor-type mechanism can be changed in height. Fig. 1 shows, for example, the maximum height, which can be realized thereby and which may be for example 250 mm.

Durch eine Kombination beider Verstellmöglichkeiten ergibt sich somit eine gesamten Sitzhöhen-Verstellung um einen Betrag von 550 mm, so wie dies in Fig. 1 dargestellt ist.By a combination of both adjustment thus results in a total seat height adjustment by an amount of 550 mm, as shown in Fig. 1.

Der erfindungsgemäße Rollstuhl ermöglicht somit eine Sitzhöheneinstellung in unterschiedlichsten Höhen in Kombination mit einem Aufricht-Mechanismus und einem Kantel-Mechanismus. Es ist erfindungsgemäß somit möglich, mittels der Hubsäule und der ersten bzw. der zweiten Verstelleinheit Bewegungsabläufe einzustellen, die zur Aufrichtung des Benutzers des Rollstuhls führen, wobei die Koordination der einzelnen Bewegungen der durch die Hubsäule und die erste und die zweite Verstelleinheit gebildeten Servoantriebe (und gegebenenfalls weiterer Servoantriebe) mittels einer Steuerung umsetzbar und koordinierbar sind. Sämtliche Einstell- und Verstellmöglichkeiten sind funktionssicher und einfach realisierbar und können beispielsweise über eine gemeinsame Steuerung aufeinander abgestimmt werden, um eine möglichst schnelle, energiesparende und für den Benutzer angenehme Einstellung der verschiedenen Rollstuhl-Positionen zu realisieren.The wheelchair according to the invention thus enables a seat height adjustment in different heights in combination with a righting mechanism and a Kantel mechanism. It is thus possible according to the invention, by means of the lifting column and the first or the second adjustment to set movements that lead to the erection of the user of the wheelchair, wherein the coordination of the individual movements of the lifting column and the first and the second adjustment formed servo drives (and optionally further servo drives) can be implemented and coordinated by means of a controller. All adjustment and adjustment are functionally reliable and easy to implement and can for example be coordinated with each other via a common control to realize the fastest possible, energy-saving and comfortable for the user setting the various wheelchair positions.

Bezugszeichenliste

1
vorderes Antriebsrad
2
hinteres Lenkrad
3
Grundrahmen
4
Rückenlehne
5
Sitz
6
Hubsäule
7
Basisrahmen
8
erste horizontale Achse
9
Zwischenrahmen
10
zweite horizontale Achse
11
Sitzrahmen
12
erste Verstelleinheit
13
zweite Verstelleinheit
14
Beinstütze
15
Achse
16
Anlenkpunkt
17
Anlenkpunkt
18
Anlenkpunkt
19
Anlenkpunkt
LIST OF REFERENCE NUMBERS
1
front drive wheel
2
rear steering wheel
3
base frame
4
backrest
5
Seat
6
Lifting column
7
base frame
8th
first horizontal axis
9
intermediate frame
10
second horizontal axis
11
seat frame
12
first adjustment unit
13
second adjustment unit
14
leg support
15
axis
16
articulation
17
articulation
18
articulation
19
articulation

Claims (13)

Elektrorollstuhl mit vorderen Antriebsrädern (1) und hinteren Lenkrädern (2), welche jeweils an einem Grundrahmen (3) gelagert sind, sowie mit einem mit einer Rückenlehne (4) versehenen Sitz (5), dadurch gekennzeichnet, dass der Grundrahmen (3) eine Hubsäule (6) trägt, an deren freiem Endbereich ein Basisrahmen (7) befestigt ist, an welchen um eine erste horizontale Achse (8) schwenkbar ein Zwischenrahmen (9) gelagert ist, an welchem um eine zweite horizontale Achse (10) schwenkbar ein Sitzrahmen (11) gelagert ist, welcher den Sitz (5) trägt.Electric wheelchair with front drive wheels (1) and rear steering wheels (2) which are each mounted on a base frame (3), and with a seat (5) provided with a backrest (4), characterized in that the base frame (3) has a Lifting column (6) carries at its free end a base frame (7) is fixed, on which about a first horizontal axis (8) pivotally an intermediate frame (9) is mounted, on which about a second horizontal axis (10) pivotally a seat frame (11) is mounted, which carries the seat (5). Elektrorollstuhl nach Anspruch 1, dadurch gekennzeichnet, dass der Basisrahmen (7), der Zwischenrahmen (9) und der Sitzrahmen (11) einen Scherenmechanismus bilden.Electric wheelchair according to claim 1, characterized in that the base frame (7), the intermediate frame (9) and the seat frame (11) form a scissors mechanism. Elektrorollstuhl nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die erste Achse (8) in Fahrtrichtung gesehen hinten und die zweite Achse (10) in Fahrtrichtung gesehen vorne angeordnet sind.Electric wheelchair according to claim 1 or 2, characterized in that the first axis (8) seen in the direction of travel behind and the second axis (10) seen in the direction of travel are arranged front. Elektrorollstuhl nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass zwischen dem Basisrahmen (7) und dem Zwischenrahmen (9) eine erste Verstelleinheit (12) angeordnet ist.Electric wheelchair according to one of claims 1 to 3, characterized in that between the base frame (7) and the intermediate frame (9) a first adjusting unit (12) is arranged. Elektrorollstuhl nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass zwischen dem Zwischenrahmen (9) und dem Sitzrahmen (11) eine zweite Verstelleinheit (13) angeordnet ist.Electric wheelchair according to one of claims 1 to 4, characterized in that between the intermediate frame (9) and the seat frame (11), a second adjusting unit (13) is arranged. Elektrorollstuhl nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass die erste Verstelleinheit (12) zur Kippung des Sitzes (5) nach vorne in eine Aufricht- oder Stehposition ausgebildet ist.Electric wheelchair according to claim 4 or 5, characterized in that the first adjusting unit (12) for Tilting of the seat (5) is formed forward in a righting or standing position. Elektrorollstuhl nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass die zweite Verstelleinheit (13) zur Kippung des Sitzes (5) nach hinten in eine Liegeposition ausgebildet ist.Electric wheelchair according to claim 5 or 6, characterized in that the second adjusting unit (13) is designed for tilting the seat (5) to the rear in a reclining position. Elektrorollstuhl nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, dass die erste (12) und die zweite (13) Verstelleinheit zur Anhebung des Sitzes (5) in einer im Wesentlichen horizontalen Position ausgebildet sind.Electric wheelchair according to one of claims 5 to 7, characterized in that the first (12) and the second (13) adjusting unit for raising the seat (5) are formed in a substantially horizontal position. Elektrorollstuhl nach einem der Ansprüche 4 bis 8, dadurch gekennzeichnet, dass die erste (12) und die zweite (13) Verstelleinheit als teleskopierbare Linearantriebe ausgebildet sind.Electric wheelchair according to one of claims 4 to 8, characterized in that the first (12) and the second (13) adjusting unit are designed as telescopic linear drives. Elektrorollstuhl nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Hubsäule (6) zweifach teleskopierbar ausgebildet ist.Electric wheelchair according to one of claims 1 to 9, characterized in that the lifting column (6) is formed twice telescopically. Elektrorollstuhl nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass die Rückenlehne (4) am Sitzrahmen (11) mittels einer servomotorischen Neigeeinrichtung gelagert ist.Electric wheelchair according to one of claims 1 to 10, characterized in that the backrest (4) is mounted on the seat frame (11) by means of a servomotor tilting device. Elektrorollstuhl nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass am Basisrahmen (7) eine servomotorisch in der Neigung und in der Länge verstellbare Beinstütze (14) gelagert ist.Electric wheelchair according to one of claims 1 to 11, characterized in that on the base frame (7) is mounted a servomotor in the inclination and the length adjustable legrest (14). Elektrorollstuhl nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass die Hubsäule (6), die erste (12) und/oder die zweite (13) Verstelleinheit zur Ausführung von Bewegungsabläufen zur Aufrichtung eines Benutzers des Elektrorollstuhls ausgebildet sind.Electric wheelchair according to one of claims 1 to 12, characterized in that the lifting column (6), the first (12) and / or the second (13) adjusting unit for the execution of Movements are designed to erect a user of the electric wheelchair.
EP06004154A 2005-05-04 2006-03-01 Electric wheel chair Not-in-force EP1719485B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06004154T PL1719485T3 (en) 2005-05-04 2006-03-01 Electric wheel chair

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005020914A DE102005020914B3 (en) 2005-05-04 2005-05-04 Electric wheelchair comprises a base chassis supporting a lifting column with a frame fixed to the free end region

Publications (2)

Publication Number Publication Date
EP1719485A1 true EP1719485A1 (en) 2006-11-08
EP1719485B1 EP1719485B1 (en) 2008-08-13

Family

ID=35852825

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06004154A Not-in-force EP1719485B1 (en) 2005-05-04 2006-03-01 Electric wheel chair

Country Status (5)

Country Link
EP (1) EP1719485B1 (en)
AT (1) ATE404150T1 (en)
DE (2) DE102005020914B3 (en)
DK (1) DK1719485T3 (en)
PL (1) PL1719485T3 (en)

Cited By (1)

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CZ307503B6 (en) * 2017-07-27 2018-10-24 Milan Vozár A drive unit, especially for a wheelchair and a case for this unit

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Publication number Priority date Publication date Assignee Title
DE102006011710B3 (en) * 2006-03-14 2007-08-02 Meyra Wilhelm Meyer Gmbh & Co. Kg Wheel-chair for heavy patients with limited motor activity, has back-support movably mounted on slide
DE102008012179B4 (en) 2008-02-29 2011-01-27 Otto Bock Healthcare Gmbh electric wheelchair
DE102009049536A1 (en) 2009-10-13 2011-04-14 Otto Bock Mobility Solutions Gmbh Wheelchair with a height and tilt adjustable seat
EP3381429B1 (en) * 2017-03-31 2020-05-06 Permobil AB Tilt assembly for a powered wheelchair and a powered wheelchair comprising the same

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GB2029334A (en) * 1978-08-31 1980-03-19 Seenus Nederland Bv R Van Wheel Chair
US5380034A (en) * 1992-09-11 1995-01-10 Love Lift, L.P. Wheelchair with convertible seat-stretcher
US5690185A (en) * 1995-03-27 1997-11-25 Michael P. Sengel Self powered variable direction wheeled task chair
EP1275363A2 (en) * 2001-07-11 2003-01-15 Komura Corporation Elevation chair
DE20303000U1 (en) * 2003-02-25 2003-07-17 Sander, Wolfgang, 63679 Schotten Mobile electrical, height adjustable and tiltable shower and toilet chair has asynchronous parallelogram enabling simultaneous raising and tilting, further tilting motion into lying position

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DE7702589U1 (en) * 1977-01-29 1980-03-06 Tuenkers Maschinenbau Gmbh, 4030 Ratingen Wheelchairs, especially room wheelchairs for the physically handicapped, the mobility impaired and the sick
DE3801874A1 (en) * 1988-01-12 1989-07-20 Ortopedia Gmbh ELECTRIC WHEELCHAIR

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Publication number Priority date Publication date Assignee Title
GB2029334A (en) * 1978-08-31 1980-03-19 Seenus Nederland Bv R Van Wheel Chair
US5380034A (en) * 1992-09-11 1995-01-10 Love Lift, L.P. Wheelchair with convertible seat-stretcher
US5690185A (en) * 1995-03-27 1997-11-25 Michael P. Sengel Self powered variable direction wheeled task chair
EP1275363A2 (en) * 2001-07-11 2003-01-15 Komura Corporation Elevation chair
DE20303000U1 (en) * 2003-02-25 2003-07-17 Sander, Wolfgang, 63679 Schotten Mobile electrical, height adjustable and tiltable shower and toilet chair has asynchronous parallelogram enabling simultaneous raising and tilting, further tilting motion into lying position

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ307503B6 (en) * 2017-07-27 2018-10-24 Milan Vozár A drive unit, especially for a wheelchair and a case for this unit

Also Published As

Publication number Publication date
PL1719485T3 (en) 2009-05-29
DE102005020914B3 (en) 2006-03-09
DE502006001299D1 (en) 2008-09-25
EP1719485B1 (en) 2008-08-13
DK1719485T3 (en) 2008-12-08
ATE404150T1 (en) 2008-08-15

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