EP2039335B1 - Stand-up wheelchair - Google Patents

Stand-up wheelchair Download PDF

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Publication number
EP2039335B1
EP2039335B1 EP08016103A EP08016103A EP2039335B1 EP 2039335 B1 EP2039335 B1 EP 2039335B1 EP 08016103 A EP08016103 A EP 08016103A EP 08016103 A EP08016103 A EP 08016103A EP 2039335 B1 EP2039335 B1 EP 2039335B1
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EP
European Patent Office
Prior art keywords
footrest
seat
stand
chassis
angle
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EP08016103A
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German (de)
French (fr)
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EP2039335A1 (en
Inventor
Heinrich Perk
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Otto Bock Healthcare GmbH
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Otto Bock Healthcare GmbH
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    • 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
    • A61G5/12—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

Definitions

  • the invention relates to a Clothingrichtrollstuhl with a chassis, a pivotally mounted on the chassis seat, which is pivotable during a Aufrichtmos of a substantially horizontal seating position in a substantially vertical standing position and at least one footrest arranged on the chassis, which lowered in the standing position on the ground is, wherein in the sitting position of the seat, the footrest relative to the horizontal at an angle ⁇ is inclined and during the erection of the angle ⁇ is zero.
  • Such Aufrichtrollstuhl is for example from the FR 2 697 418 A1 or the EP 0 155 918 A2 known.
  • the long-term sitting posture of a wheelchair user leads to the physical degradation of bodily functions, such as reduced mobility of the lower limbs, slowing of bowel activities, and worsening of blood circulation. Sitting also causes the risk of decubitus.
  • a sit-up wheelchair helps to reduce these consequences, because by changing the posture, up to standing, the degradation of bodily functions is reduced.
  • the swiveling seat is mounted on a chassis with backrest and footrest. The correct adaptation to the anatomical requirements of the user is a very important criterion for the comfort offered by the wheelchair.
  • Raising wheelchairs also offer the user the opportunity to exercise.
  • the disabled person can play golf.
  • it is particularly important that the wheelchair in the erected position provides high stability.
  • a requirement is that the footrest in the erected position stand up on the ground or be supported on it.
  • the backrest must be parallel to the seat and the golfer must be provided with sufficient movement (turning of the upper body) to be able to swing to the beat.
  • the EP 0 815 822 B1 discloses a roll-up wheelchair in which the footrest has a shaft which is translationally guided in the frame of the chassis and the erecting frame is pivotally connected via a connecting member to the shaft of the footrest.
  • the footrest When changing from the sitting to the standing position, the footrest is lowered in the direction of the floor.
  • the footrest height relative to the ground By changing the footrest height relative to the ground, the distance between the seat surface and the footrest is changed at the same time. This is necessary because the anatomical axis of rotation in the knee joint does not coincide with the axis of rotation of the seat.
  • the footrest In order for the wheelchair to stand securely in the standing position, the footrest must lie flat on the floor, that is to say be aligned substantially perpendicular to the chassis.
  • a comfortable sitting position is taken when the footrest (or the foot contact surface) is inclined relative to the horizontal, that is not parallel to the ground. Since the stability is to be rated higher than the seating comfort, the footrest is not inclined in the seating position in the above-mentioned wheelchairs, but runs parallel to the ground.
  • the patient thus takes an anatomically unfavorable sitting posture, at a larger knee angle, the patient then suffers a Spitzfuß (malformation of the foot).
  • the footrest of the FR 2 697 418 A1 known wheelchair in the sitting position of the seat relative to the horizontal at an angle ⁇ inclined.
  • the angle ⁇ becomes zero.
  • the footrest is rigidly attached to the part of the erecting frame, which is pivoted upwards, so that the design effort necessary to ensure the functionality is very high.
  • the erecting rack is therefore solid and heavy.
  • a generic wheelchair is characterized in that the footrest is telescopically received in a guide tube and forms together with this a footrest unit which is pivotally mounted on a pivotally mounted on the chassis lever, and that the lever is in communication with the seat.
  • a particularly simple construction occurs when the lever is connected to the seat by means of a connecting lug and the connecting lug is articulated at one end to the seat and at the other end hinged to the lever.
  • the lever may be spring loaded, thereby reducing the force required to pivot the footrest unit.
  • the inclination angle ⁇ of the footrest unit relative to the vertical is adjustable.
  • the wheelchair can also be driven in this position.
  • the vertical height of the seat pillar which is part of the chassis and on which the footrest unit is articulated, is adjustable.
  • the seat post may be detachably connected to the chassis.
  • the inclination angle ⁇ of the footrest is preferably adjustable.
  • the patient assumes a comfortable posture in the sitting position.
  • the footrest is then forcibly set parallel to the floor, so that a secure standing position is generated.
  • the angle ⁇ at the beginning of Aufrichtamba is zero.
  • the suspension of the footrest is oriented vertically.
  • the footrest is further lowered vertically, resulting in a much lower pressure load on the knee. The lowering can also begin immediately with the initiation of the erection movement.
  • the wheelchair consists of the chassis 29 with the erection unit 33 mounted thereon, the drive wheels 30 and the two steerable front wheels 31.
  • the erection unit 33 has a seat 2, a backrest 32 and a footrest 16 which is telescopically arranged in the guide tube 9 and forms together with this a footrest unit 169. Via an actuator 15, the erecting unit 33 can be pivoted.
  • the seat of the seat 2 comes to a vertical position.
  • the backrest 32 maintains its vertical position and is then parallel to the seat.
  • the footrest 16 is lowered.
  • the center of gravity is in the standing position between the drive wheels 30 and the front wheels 31.
  • the footrest is spaced from the ground, so that it is possible to drive in the standing position with the wheelchair.
  • a seat post 22 is part of the chassis and releasably connected to the chassis 29. In order to allow the erection of the lowering of the footrest unit, the vertical height of the seat post 22 is adjustable.
  • the connecting plate 1 with the axes of rotation 4 and 5 connects the seat 2 with the lever 3.
  • the guide tube 9 in which theticianauflage16 is telescopically connected to the cancelled withnrohr 17 is rotatable about the axis 6 connected to the lever 3.
  • the stop carrier 8 is permanently connected to the guide tube 9.
  • the stopper 7 is detachably connected to the stop carrier 8. As a result of gravity, the weight of the footrest unit 169 and the tension spring 12 pushes the stopper 7 against the lever 3.
  • Both the stopper 7 and the stopper 8 fixed to the guide tube 9 is provided with a plurality of holes 14, via which the relative position of the stop 7 can be set to the stop carrier 8 and fixed by means of screw.
  • the stop carrier 8 can be connected to the stop 7 in the longitudinal direction of the guide tube 9.
  • FIGS. 1 to 4 is shown by the chassis 29, only the seat post 22.
  • the connecting plate 1, the reversing lever 3 and the stop carrier 8 with the stopper 7 are arranged on the left and right of the seat post 22.
  • the footrest tube 17 is telescopically connected to the guide tube 9.
  • the footrest 16 is hingedly connected about the axis of rotation 19 with the footrest tube 17. It is adjustable relative to the seat column 22 at an angle ⁇ .
  • the inclination (angle ⁇ ) of the seat 2 moves into negative when it is tilted.
  • the connecting plate 1 moves when tilting the lever 3 and thus the entire footrest unit 169.
  • the footrest angle ⁇ increases.
  • the tension spring 12 of the footrest angle ⁇ can be increased manually to a limit.
  • the footrest angle ⁇ is the rotatably mounted about the axis 23 guide rail 10 with the guided therein sliding block 18.
  • the stop pin 11 On the guide rail 10 is the stop pin 11, which moves within the arc segment 24.
  • the consisting of guide rail 10 and sliding block 18 limit can be arranged on both sides, one side or the center of the seat column 22.
  • the connecting plate 25 is permanently connected to the guide tube 9, and the slide pin 27 with the axis 26 is permanently connected to the connecting plate 25.

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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)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Handcart (AREA)
  • Passenger Equipment (AREA)
  • Golf Clubs (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

The wheelchair has a seat (2) on a chassis (29) and pivoted from a horizontal seating position to a vertical standing position during upright motion. A footrest (16) is arranged on the chassis, and is lowered to ground in the standing position. The footrest is inclined at an angle relative to a horizontal when the seat is in the seating position, where the angle becomes zero during upright motion. The footrest is housed telescoping in a guide tube (9), and forms a foot support unit (169) articulated to a spring-loaded reversing lever arranged pivotably on a seat column (22).

Description

Die Erfindung betrifft einen Aufrichtrollstuhl mit einem Fahrgestell, einem am Fahrgestell schwenkbar angeordneten Sitz, der während einer Aufrichtbewegung von einer im Wesentlichen horizontalen Sitzposition in eine im Wesentlichen vertikale Stehposition verschwenkbar ist und mindestens einer am Fahrgestell angeordneten Fußstütze, die in der Stehposition auf den Boden abgesenkt ist, wobei in der Sitzposition des Sitzes die Fußauflage gegenüber der Horizontalen im Winkel α geneigt ist und während der Aufrichtbewegung der Winkel α zu Null wird.The invention relates to a Aufrichtrollstuhl with a chassis, a pivotally mounted on the chassis seat, which is pivotable during a Aufrichtbewegung of a substantially horizontal seating position in a substantially vertical standing position and at least one footrest arranged on the chassis, which lowered in the standing position on the ground is, wherein in the sitting position of the seat, the footrest relative to the horizontal at an angle α is inclined and during the erection of the angle α is zero.

Ein solcher Aufrichtrollstuhl ist beispielsweise aus der FR 2 697 418 A1 oder der EP 0 155 918 A2 bekannt.Such Aufrichtrollstuhl is for example from the FR 2 697 418 A1 or the EP 0 155 918 A2 known.

Die über einen langen Zeitraum andauernde sitzende Körperhaltung eines Rollstuhlfahrers führt zum physischen Abbau von Körperfunktionen, wie zum Beispiel reduzierte Beweglichkeit der unteren Gliedmaße, Verlangsamung der Darmaktivitäten und Verschlechterung der Blutzirkulation. Durch das Sitzen besteht außerdem die Gefahr eines Dekubitus. Ein Aufrichtrollstuhl hilft, diese Folgen zu reduzieren, da durch Veränderung der Körperhaltung, bis hin zum Stehen, der Abbau der Körperfunktionen reduziert wird. Die schwenkbare Sitzfläche wird mit Rücken- und Fußauflage auf ein Fahrgestell montiert. Die korrekte Anpassung an die anatomischen Erfordernisse des Benutzers ist ein sehr wichtiges Kriterium für den Komfort, den der Rollstuhl bietet.The long-term sitting posture of a wheelchair user leads to the physical degradation of bodily functions, such as reduced mobility of the lower limbs, slowing of bowel activities, and worsening of blood circulation. Sitting also causes the risk of decubitus. A sit-up wheelchair helps to reduce these consequences, because by changing the posture, up to standing, the degradation of bodily functions is reduced. The swiveling seat is mounted on a chassis with backrest and footrest. The correct adaptation to the anatomical requirements of the user is a very important criterion for the comfort offered by the wheelchair.

Aufrichtrollstühle bieten dem Benutzer auch die Möglichkeit, sich sportlich zu betätigen. So kann der Behinderte beispielsweise Golf spielen. In einem solchen Fall ist es besonders wichtig, dass der Rollstuhl in der aufgerichteten Position eine hohe Standfestigkeit bietet. So ist beispielsweise eine Anforderung, dass die Fußauflage in der aufgerichteten Position auf dem Erdboden aufsteht bzw. sich auf ihm abstützt. Die Rückenlehne muss parallel zur Sitzfläche stehen und dem Golfer muss ausreichend Bewegungsmöglichkeit (Drehen des Oberkörpers) geboten werden, um zum Schlag schwingen zu können.Raising wheelchairs also offer the user the opportunity to exercise. For example, the disabled person can play golf. In such a case, it is particularly important that the wheelchair in the erected position provides high stability. For example, a requirement is that the footrest in the erected position stand up on the ground or be supported on it. The backrest must be parallel to the seat and the golfer must be provided with sufficient movement (turning of the upper body) to be able to swing to the beat.

Aus der US 5,356,172 A ist ein Rollstuhl bekannt, bei dem die Fußstützen teleskopierbar in den Rahmenrohren angeordnet sind. Die EP 0 815 822 B1 offenbart einen Aufrichtrollstuhl, bei dem die Fußstütze einen Schaft aufweist, der im Rahmen des Fahrgestells translatorisch geführt ist und das Aufrichtgestell über ein Verbindungsglied mit dem Schaft der Fußstütze gelenkig verbunden ist. Beim Wechsel von der Sitz- in die Stehposition wird die Fußauflage in Richtung Boden abgesenkt. Durch die Veränderung der Fußstützenhöhe relativ zum Boden wird auch gleichzeitig der Abstand zwischen Sitzfläche und Fußauflage verändert. Dies ist notwendig, da die anatomische Drehachse im Kniegelenk nicht mit der Drehachse der Sitzfläche übereinstimmt. Damit der Rollstuhl in der Stehposition sicher steht, muss die Fußauflage plan auf dem Boden aufliegen, also im Wesentlichen senkrecht zum Fahrgestell ausgerichtet sein. Eine komfortable Sitzposition wird hingegen dann eingenommen, wenn die Fußanlage (bzw. die Fußaufstandsfläche) gegenüber der Horizontalen geneigt ist, also nicht parallel zum Boden verläuft. Da die Standsicherheit höher zu bewerten ist als der Sitzkomfort, ist bei den vorbenannten Rollstühlen die Fußauflage auch in der Sitzposition nicht geneigt, sondern verläuft parallel zum Boden. Der Patient nimmt folglich eine anatomisch ungünstige Sitzhaltung ein, bei größerem Kniewinkel erleidet der Patient dann einen Spitzfuß (Fehlbildung des Fußes).From the US 5,356,172 A is known a wheelchair in which the footrests are arranged telescopically in the frame tubes. The EP 0 815 822 B1 discloses a roll-up wheelchair in which the footrest has a shaft which is translationally guided in the frame of the chassis and the erecting frame is pivotally connected via a connecting member to the shaft of the footrest. When changing from the sitting to the standing position, the footrest is lowered in the direction of the floor. By changing the footrest height relative to the ground, the distance between the seat surface and the footrest is changed at the same time. This is necessary because the anatomical axis of rotation in the knee joint does not coincide with the axis of rotation of the seat. In order for the wheelchair to stand securely in the standing position, the footrest must lie flat on the floor, that is to say be aligned substantially perpendicular to the chassis. A comfortable sitting position, however, is taken when the footrest (or the foot contact surface) is inclined relative to the horizontal, that is not parallel to the ground. Since the stability is to be rated higher than the seating comfort, the footrest is not inclined in the seating position in the above-mentioned wheelchairs, but runs parallel to the ground. The patient thus takes an anatomically unfavorable sitting posture, at a larger knee angle, the patient then suffers a Spitzfuß (malformation of the foot).

Zur Verbesserung der Sitzhaltung ist die Fußauflage des aus der FR 2 697 418 A1 bekannten Rollstuhls in der Sitzposition des Sitzes gegenüber der Horizontalen im Winkel α geneigt. Bei der Aufrichtbewegung wird der Winkel α zu Null. Die Fußstütze ist starr an dem Teil des Aufrichtgestells befestigt, das nach oben geschwenkt wird, so dass der konstruktive Aufwand, der notwendig ist, um die Funktionsfähigkeit zu gewährleisten, sehr hoch ist. Das Aufrichtgestell ist deshalb massiv und schwer.To improve the posture is the footrest of the FR 2 697 418 A1 known wheelchair in the sitting position of the seat relative to the horizontal at an angle α inclined. During the righting movement, the angle α becomes zero. The footrest is rigidly attached to the part of the erecting frame, which is pivoted upwards, so that the design effort necessary to ensure the functionality is very high. The erecting rack is therefore solid and heavy.

Von dieser Problemstellung ausgehend soll der eingangs beschriebene Aufrichtrollstuhl bezüglich des anatomischen Fußstützenausgleichs konstruktiv vereinfacht werden.Based on this problem, the Aufrichtrollstuhl described above with respect to the anatomical Fußstützenausgleichs should be structurally simplified.

Zur Problemlösung zeichnet sich ein gattungsgemäßer Rollstuhl dadurch aus, dass die Fußauflage teleskopierbar in einem Führungsrohr aufgenommen ist und zusammen mit diesem eine Fußstützeneinheit bildet, die gelenkig an einem schwenkbar am Fahrgestell angeordneten Umlenkhebel befestigt ist, und dass der Umlenkhebel mit dem Sitz in Verbindung steht.To solve the problem, a generic wheelchair is characterized in that the footrest is telescopically received in a guide tube and forms together with this a footrest unit which is pivotally mounted on a pivotally mounted on the chassis lever, and that the lever is in communication with the seat.

Durch diese Ausgestaltung ist es möglich, den Abstand der Fußauflage zur Sitzfläche zu verändern und an die Anatomie des Patienten anzupassen. Durch die gelenkige Verbindung der Fußstützeneinheit am Fahrgestell über den schwenkbaren Hebel führt die Aufrichtbewegung des Sitzes unmittelbar zu einer Winkelverkleinerung der Fußauflage zur Horizontalen. Die Fußauflage folgt bei der Aufrichtbewegung von der Sitzposition in die Stehposition der natürlichen Bewegung des Menschen beim Aufstehen. Zum Aufstehen aus einem Stuhl bewegt eine nicht behinderte Person die Füße nach hinten in eine für das Stehen sichere Position. Mit dieser konstruktiven Ausgestaltung wird der natürliche Aufstehvorgang mechanisch nachempfunden.With this configuration, it is possible to change the distance of the footrest to the seat and adapt to the anatomy of the patient. Due to the articulated connection of the footrest unit to the chassis via the pivotable lever, the erecting movement of the seat leads directly to an angular reduction of the footrest to the horizontal. The footrest follows during the righting movement from the sitting position to the standing position of the natural movement of the person when standing up. To get out of a chair, a non-disabled person moves the feet backwards to a safe standing position. With this structural design of the natural getting up is mechanically modeled.

Eine besonders einfache Konstruktion stellt sich ein, wenn der Hebel mittels einer Verbindungslasche mit dem Sitz in Verbindung steht und die Verbindungslasche mit ihrem einen Ende gelenkig am Sitz und mit ihrem anderen Ende gelenkig am Hebel befestigt ist.A particularly simple construction occurs when the lever is connected to the seat by means of a connecting lug and the connecting lug is articulated at one end to the seat and at the other end hinged to the lever.

Der Hebel kann federbelastet sein, wodurch die zum Verschwenken der Fußstützeneinheit notwendige Kraft reduziert wird.The lever may be spring loaded, thereby reducing the force required to pivot the footrest unit.

Vorzugsweise ist der Neigungswinkel γ der Fußstützeneinheit gegenüber der Vertikalen einstellbar.Preferably, the inclination angle γ of the footrest unit relative to the vertical is adjustable.

Wenn die Fußstützeneinheit sich in der Stehposition verriegelt, kann auch in dieser Position mit dem Rollstuhl gefahren werden.If the footrest unit locks in the standing position, the wheelchair can also be driven in this position.

In der Sitzposition ist ein vertikaler Abstand zwischen der Fußauflage und dem Boden erforderlich, um beim Aufrichten die Absenkung der Fußstützeneinheit zu ermöglichen. Vorteilhaft ist es in diesem Fall, wenn die vertikale Höhe der Sitzsäule, die Teil des Fahrgestells ist und an der die Fußstützeneinheit gelenkig angeordnet ist, einstellbar ist. Die Sitzsäule kann lösbar mit dem Fahrgestell verbunden sein.In the sitting position, a vertical distance between the footrest and the floor is required to allow the lowering of the footrest unit when erecting. It is advantageous in this case if the vertical height of the seat pillar, which is part of the chassis and on which the footrest unit is articulated, is adjustable. The seat post may be detachably connected to the chassis.

Der Neigungswinkel α der Fußauflage ist vorzugsweise einstellbar.The inclination angle α of the footrest is preferably adjustable.

Der Patient nimmt in der Sitzposition eine komfortable Haltung ein. Während der Aufrichtbewegung wird die Fußauflage dann zwangsweise parallel zum Boden gestellt, so dass eine sichere Stehposition erzeugt wird.The patient assumes a comfortable posture in the sitting position. During the erection movement, the footrest is then forcibly set parallel to the floor, so that a secure standing position is generated.

Vorzugsweise wird der Winkel α zu Beginn der Aufrichtbewegung zu Null. Wenn der Winkel zur Horizontalen Null ist, ist die Aufhängung der Fußauflage in der Vertikalen ausgerichtet. In Abhängigkeit vom Ausgangswinkel kann die vertikale Position (α=0) bereits nach einer geringen Aufrichtbewegung erreicht werden. Vorzugsweise wird dann die Fußauflage weiter vertikal abgesenkt, was zu einer wesentlich geringeren Druckbelastung der Knie führt. Die Absenkung kann aber auch bereits unmittelbar mit Einleitung der Aufrichtbewegung beginnen.Preferably, the angle α at the beginning of Aufrichtbewegung to zero. When the angle to the horizontal is zero, the suspension of the footrest is oriented vertically. Depending on the output angle, the vertical position (α = 0) can already be reached after a slight righting movement. Preferably, then the footrest is further lowered vertically, resulting in a much lower pressure load on the knee. The lowering can also begin immediately with the initiation of the erection movement.

Mit Hilfe einer Zeichnung soll ein Ausführungsbeispiel der Erfindung nachfolgend näher beschrieben werden.With the aid of a drawing, an embodiment of the invention will be described in more detail below.

Es zeigt:

Figur 1 -
die schematische Teil-Seitenansicht eines Aufrichtrollstuhls in der Sitz- position;
Figur 2 -
die Darstellung nach Figur 1 mit gekanteltem Sitz;
Figur 3 -
die Darstellung nach Figur 1 während der Aufrichtbewegung des Sitzes;
Figur 4 -
die Darstellung nach Figur 1 in der Stehposition;
Figur 5 -
die Seitenansicht eines Aufrichtrollstuhls.
It shows:
FIG. 1 -
the schematic partial side view of a Aufrichtrollstuhls in the sitting position;
FIG. 2 -
the representation after FIG. 1 with hooded seat;
FIG. 3 -
the representation after FIG. 1 during the erection movement of the seat;
FIG. 4 -
the representation after FIG. 1 in the standing position;
FIG. 5 -
the side view of a Aufrichtrollstuhls.

Der Rollstuhl besteht aus dem Fahrgestell 29 mit der darauf befestigten Aufrichteeinheit 33, den Antriebsrädern 30 und den beiden lenkbaren Vorderrädern 31. Die Aufrichteeinheit 33 weist einen Sitz 2, eine Rückenlehne 32 und eine Fußauflage 16 auf, die teleskopierbar in dem Führungsrohr 9 angeordnet ist und zusammen mit diesem eine Fußstützeneinheit 169 bildet. Über einen Aktuator 15 kann die Aufrichteeinheit 33 geschwenkt werden. Die Sitzfläche des Sitzes 2 gelangt dazu in eine vertikale Lage. Die Rückenlehne 32 behält ihre vertikale Lage bei und steht dann parallel zur Sitzfläche. Gleichzeitig mit dem Abkippen des Sitzes 2 wird die Fußauflage 16 abgesenkt. Der Schwerpunkt befindet sich in der Stehstellung zwischen den Antriebsrädern 30 und den Vorderrädern 31. Die Fußauflage ist vom Boden beabstandet, so dass es möglich ist, in der Stehstellung mit dem Rollstuhl zu fahren.The wheelchair consists of the chassis 29 with the erection unit 33 mounted thereon, the drive wheels 30 and the two steerable front wheels 31. The erection unit 33 has a seat 2, a backrest 32 and a footrest 16 which is telescopically arranged in the guide tube 9 and forms together with this a footrest unit 169. Via an actuator 15, the erecting unit 33 can be pivoted. The seat of the seat 2 comes to a vertical position. The backrest 32 maintains its vertical position and is then parallel to the seat. Simultaneously with the tilting of the seat 2, the footrest 16 is lowered. The center of gravity is in the standing position between the drive wheels 30 and the front wheels 31. The footrest is spaced from the ground, so that it is possible to drive in the standing position with the wheelchair.

Eine Sitzsäule 22 ist Teil des Fahrgestells und mit dem Fahrgestell 29 lösbar verbunden. Um beim Aufrichten die Absenkung der Fußstützeneinheit zu ermöglichen ist die vertikale Höhe der Sitzsäule 22 einstellbar.A seat post 22 is part of the chassis and releasably connected to the chassis 29. In order to allow the erection of the lowering of the footrest unit, the vertical height of the seat post 22 is adjustable.

Die Anlenkung der Fußstützeneinheit 169 erfolgt über den Sitz 2. Die Verbindungslasche 1 mit den Drehachsen 4 und 5 verbindet die Sitzfläche 2 mit dem Umlenkhebel 3. Das Führungsrohr 9 in dem die Fußauflage16 mit dem Fußstützenrohr 17 teleskopierbar verbunden ist, ist über die Achse 6 drehbar mit dem Umlenkhebel 3 verbunden. Der Anschlagträger 8 ist unlösbar mit dem Führungsrohr 9 verbunden. Der Anschlag 7 ist mit dem Anschlagträger 8 lösbar verbunden. Infolge der Schwerkraft drückt das Eigengewicht der Fußstützeneinheit 169 und die Zugfeder 12 den Anschlag 7 gegen den Umlenkhebel 3. Sowohl der Anschlag 7 als auch der am Führungsrohr 9 befestigte Anschlagträger 8 ist mit einer Mehrzahl von Bohrungen 14 versehen, über die die relative Lage des Anschlags 7 zum Anschlagträger 8 eingestellt und mittels Schraubverbindung fixiert werden kann. Durch die wahlweise Befestigung des Anschlags 7 auf dem Anschlagträger 8 wird der Fußstützenwinkel γ, die Neigung der Fußstützeneinheit 169 gegenüber der Vertikalen eingestellt. Alternativ kann zur Einstellung des Fußstützenwinkels γ der Anschlagträger 8 mit dem Anschlag 7 in Längsrichtung zum Führungsrohr 9 verbunden werden. In den Figuren 1 bis 4 ist vom Fahrgestell 29 nur die Sitzsäule 22 dargestellt. Die Verbindungslasche 1, der Umlenkhebel 3 und der Anschlagträger 8 mit dem Anschlag 7 sind links und rechts von der Sitzsäule 22 angeordnet. Es können zwei Fußstützeneinheiten 169 oder eine einzige für beide Beine vorgesehen sein.The linkage of the footrest unit 169 via the seat 2. The connecting plate 1 with the axes of rotation 4 and 5 connects the seat 2 with the lever 3. The guide tube 9 in which the Fußauflage16 is telescopically connected to the Fußstützenrohr 17 is rotatable about the axis 6 connected to the lever 3. The stop carrier 8 is permanently connected to the guide tube 9. The stopper 7 is detachably connected to the stop carrier 8. As a result of gravity, the weight of the footrest unit 169 and the tension spring 12 pushes the stopper 7 against the lever 3. Both the stopper 7 and the stopper 8 fixed to the guide tube 9 is provided with a plurality of holes 14, via which the relative position of the stop 7 can be set to the stop carrier 8 and fixed by means of screw. By the optional attachment of the stopper 7 on the stop bracket 8 of the footrest angle γ, the inclination of the footrest unit 169 is set relative to the vertical. Alternatively, to adjust the footrest angle γ, the stop carrier 8 can be connected to the stop 7 in the longitudinal direction of the guide tube 9. In the FIGS. 1 to 4 is shown by the chassis 29, only the seat post 22. The connecting plate 1, the reversing lever 3 and the stop carrier 8 with the stopper 7 are arranged on the left and right of the seat post 22. There may be two footrest units 169 or a single one for both legs.

Zur Anpassung der Unterschenkellänge des Patienten ist das Fußstützenrohr 17 teleskopisch mit dem Führungsrohr 9 verbunden. Die Fußauflage 16 ist hochklappbar um die Drehachse 19 mit dem Fußstützenrohr 17 verbunden. Sie ist im Winkel γ relativ zur Sitzsäule 22 einstellbar.To adjust the lower leg length of the patient, the footrest tube 17 is telescopically connected to the guide tube 9. The footrest 16 is hingedly connected about the axis of rotation 19 with the footrest tube 17. It is adjustable relative to the seat column 22 at an angle γ.

Wie Figur 2 zeigt, bewegt sich die Neigung (Winkel β) des Sitzes 2 ins Negative, wenn dieser gekantelt wird. Die Verbindungslasche 1 bewegt beim Kanteln den Umlenkhebel 3 und somit die gesamte Fußstützeneinheit 169. Der Fußstützenwinkel γ vergrößert sich. Gegen die Schwerkraft und die Zugfeder 12 kann der Fußstützenwinkel γ manuell bis zu einer Begrenzung vergrößert werden. Als Begrenzung für den Fußstützenwinkel γ dient die drehbar um die Achse 23 gelagerte Führungsschiene 10 mit dem darin geführten Gleitstein 18. An der Führungsschiene 10 befindet sich der Anschlagbolzen 11, der sich innerhalb des Bogensegmentes 24 bewegt.As FIG. 2 shows, the inclination (angle β) of the seat 2 moves into negative when it is tilted. The connecting plate 1 moves when tilting the lever 3 and thus the entire footrest unit 169. The footrest angle γ increases. Against the force of gravity and the tension spring 12 of the footrest angle γ can be increased manually to a limit. As a limitation for the footrest angle γ is the rotatably mounted about the axis 23 guide rail 10 with the guided therein sliding block 18. On the guide rail 10 is the stop pin 11, which moves within the arc segment 24.

Die aus Führungsschiene 10 und Gleitstein 18 bestehende Begrenzung kann beidseitig, einseitig oder mittig der Sitzsäule 22 angeordnet werden. Das Verbindungsblech 25 ist unlösbar mit dem Führungsrohr 9 verbunden, und der Gleitbolzen 27 mit der Achse 26 ist unlösbar mit dem Verbindungsblech 25 verbunden.The consisting of guide rail 10 and sliding block 18 limit can be arranged on both sides, one side or the center of the seat column 22. The connecting plate 25 is permanently connected to the guide tube 9, and the slide pin 27 with the axis 26 is permanently connected to the connecting plate 25.

Beim Aufrichten bewegt sich die Fußstützeneinheit 169 angetrieben durch die Schwerkraft und die Zugfeder 12 in der Führungsschiene 10 mit dem Gleitstein 18 geführt in die Vertikale. Der Winkel α der Fußauflage16 zur Horizontalen H verringert sich dabei, bis er zu Null wird. Dann erreicht die Fußstützeneinheit 169 die Vertikale und der Anschlag 7 verliert den Kontakt zum Umlenkhebel 3. Die Fußstützeneinheit 169 senkt sich nun in vertikaler Richtung bis zum Erreichen der Stehposition (Figur 4) ab. Beim Erreichen der Stehposition befindet sich der Gleitbolzen 27 mit der Achse 26 unterhalb der Drehachse 23. In dieser Position ist die Fußstützeneinheit 169 fixiert. Eine Vorwärtsbewegung verhindert der Anschlagbolzen 11 im Bogensegment 24 und die Rückwärtsbewegung wird durch das von der Zugfeder 12 erzeugte Drehmoment verhindert.When erecting the footrest unit 169 moves driven by gravity and the tension spring 12 in the guide rail 10 with the sliding block 18 guided in the vertical. The angle α of the Fußauflage16 to the horizontal H is thereby reduced until it becomes zero. Then, the footrest unit 169 reaches the vertical and the stop 7 loses contact with the deflection lever 3. The footrest unit 169 then descends in the vertical direction until it reaches the standing position (FIG. FIG. 4 ). Upon reaching the standing position, the slide pin 27 is located with the axis 26 below the axis of rotation 23. In this position, the footrest unit 169 is fixed. A forward movement prevents the stop pin 11 in the arc segment 24 and the backward movement is prevented by the torque generated by the tension spring 12.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Verbindungslaschenconnecting straps
22
SitzSeat
33
UmlenkhebelUmlenkhebel
44
Drehachseaxis of rotation
55
Drehachseaxis of rotation
66
Achseaxis
77
Anschlagattack
88th
Anschlagträgerstop support
99
Führungsrohrguide tube
1010
Führungsschieneguide rail
1111
Anschlagbolzenstop pin
1212
Zugfedermainspring
1414
Bohrungdrilling
1515
Aktuatoractuator
1616
Fußauflagefootrest
1717
Fußstützenrohrfootrest
1818
Gleitsteinslide
1919
Drehachseaxis of rotation
2222
Sitzsäuleseat post
2323
Drehachseaxis of rotation
2424
Bogensegmentarc segment
2525
Verbindungsblechconnecting plate
2626
Achseaxis
2727
Gleitbolzenslide bolt
2929
Fahrgestellchassis
3030
Hinterradrear wheel
3131
Vorderradfront
3232
Rückenlehnebackrest
3333
Aufrichteeinheituplift
169169
Fußstützeneinheitfoot support
αα
Winkel (Neigung der Fußauflage16 zur Horizontalen H)Angle (inclination of the footrest16 to the horizontal H)
ββ
Sitzwinkelseat angle
γγ
Fußstützenwinkelfoot support
HH
Horizontalehorizontal

Claims (10)

  1. Stand-up wheelchair with a chassis (29, 22), a seat (2), which is pivotably arranged on the chassis (29, 22) and can be pivoted from a substantially horizontal sitting position into a substantially vertical standing position during an erecting movement, and at least one footrest (16), which is arranged on the chassis (29, 22) and which is lowered toward the floor in the standing position, wherein, in the sitting position of the seat (2), the footrest (16) is inclined at an angle (α) relative to the horizontal (H) and, during the erecting movement, the angle (α) becomes zero, characterised in that the footrest (16) is telescopically received in a guide tube (9) and, together with the latter, forms a foot support unit (169), which is articulated to a reversing lever (3) pivotably arranged on the chassis (22), and in that the reversing lever (3) is connected to the seat (2).
  2. Stand-up wheelchair according to claim 1, characterised in that the angle (α) becomes zero at the beginning of the erecting movement.
  3. Stand-up wheelchair according to claim 1 or 2, characterised in that the vertical lowering of the footrest (16) only begins when α = 0 is reached.
  4. Stand-up wheelchair according to claim 1, characterised in that the reversing lever (3) is connected to the seat (2) by means of a connecting link (1) and the connecting link (1) is articulated by its one end (1') to the seat (2) and by its other end (1") to the reversing lever (3).
  5. Stand-up wheelchair according to any one or more of the preceding claims, characterised in that the reversing lever (3) is spring-loaded.
  6. Stand-up wheelchair according to any one or more of the preceding claims, characterised in that the incline of the foot support unit (169) can be adjusted at an angle (γ) relative to the vertical.
  7. Stand-up wheelchair according to any one or more of the preceding claims, characterised in that the vertical lowering of the footrest (16) is initiated together with the erecting movement.
  8. Stand-up wheelchair according to any one or more of the preceding claims, characterised in that the foot support unit (169) is locked in the standing position.
  9. Stand-up wheelchair according to claim 1, characterised in that the part of the chassis (22), on which the foot support unit (169) is articulated, is height-adjustable.
  10. Stand-up wheelchair according to any one or more of the preceding claims, characterised in that the angle (α) of inclination of the footrest (16) can be adjusted.
EP08016103A 2007-09-18 2008-09-12 Stand-up wheelchair Active EP2039335B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007044832A DE102007044832A1 (en) 2007-09-18 2007-09-18 Stand-up wheelchair

Publications (2)

Publication Number Publication Date
EP2039335A1 EP2039335A1 (en) 2009-03-25
EP2039335B1 true EP2039335B1 (en) 2011-02-16

Family

ID=40044089

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08016103A Active EP2039335B1 (en) 2007-09-18 2008-09-12 Stand-up wheelchair

Country Status (7)

Country Link
US (1) US7891695B2 (en)
EP (1) EP2039335B1 (en)
JP (1) JP2009072591A (en)
CN (1) CN101467928B (en)
AT (1) ATE498383T1 (en)
AU (1) AU2008217006B2 (en)
DE (2) DE102007044832A1 (en)

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US11813212B2 (en) 2019-04-06 2023-11-14 Rapadapt Corporation Assistive mobility device

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US11813212B2 (en) 2019-04-06 2023-11-14 Rapadapt Corporation Assistive mobility device

Also Published As

Publication number Publication date
AU2008217006B2 (en) 2012-05-24
US7891695B2 (en) 2011-02-22
AU2008217006A1 (en) 2009-04-02
US20090072513A1 (en) 2009-03-19
DE502008002599D1 (en) 2011-03-31
CN101467928A (en) 2009-07-01
JP2009072591A (en) 2009-04-09
ATE498383T1 (en) 2011-03-15
EP2039335A1 (en) 2009-03-25
DE102007044832A1 (en) 2009-04-02
CN101467928B (en) 2012-03-21

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