EP0697848B1 - Wheelchair, in particular for physically disabled persons - Google Patents
Wheelchair, in particular for physically disabled persons Download PDFInfo
- Publication number
- EP0697848B1 EP0697848B1 EP94915034A EP94915034A EP0697848B1 EP 0697848 B1 EP0697848 B1 EP 0697848B1 EP 94915034 A EP94915034 A EP 94915034A EP 94915034 A EP94915034 A EP 94915034A EP 0697848 B1 EP0697848 B1 EP 0697848B1
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- Prior art keywords
- wheelchair
- support
- fact
- seat
- accordance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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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
- A61G5/1056—Arrangements for adjusting the seat
- A61G5/1075—Arrangements for adjusting the seat tilting the whole seat backwards
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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
-
- 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
-
- 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
- A61G5/1091—Cushions, seats or abduction devices
Definitions
- the invention relates to a wheelchair according to the preamble of the main claim, which is not only about improving comfort for physically handicapped people, but also about expanding the range of use or application of such wheelchairs.
- the wheelchair according to the invention with the features of the main claim also has the advantage that it can be used as a commercial work chair, for example in the office.
- the person using the wheelchair can drive it directly to the desk and transport some work equipment via the wheelchair support device.
- a wheelchair with storage space arranged under the seat on the chassis is known per se (EP-A-0 127 511).
- the disadvantage of this wheelchair is that there is access to the storage space from the front or the rear of the wheelchair, wheelchair sides to which the physically disabled person normally has no access.
- Wheelchairs the two wheels of which are hub-free and are connected to the chassis via support bearings, are also known (DE-A-38 19 925, EP-A-O 430 794).
- the use of hub-free wheels is primarily intended to reduce the risk of injury to the physically handicapped person and there is more empty space under the seat to accommodate simple transport aids such as trays.
- the crossbars form a "cage" with the support elements.
- this type of frame formation achieves high internal stability.
- at least two crossbars of this type are present, with steering support rollers, seat and backrest or the support device being attachable to these crossbars.
- the steering support rollers or the footrests can also be attached directly to other parts of the chassis.
- the power transmission from these crossbars to the support elements is particularly easy to intercept.
- a support ring can preferably serve as the support element, which is supported on the respective impeller via radial bearings.
- the crossbars can also be connected to one another, for example when arranging the seat or the backrest, two such crossbars being usable for this purpose.
- the storage device has a pull-out device which can be pulled out through the open wheel segment and which has an ironing device for holding objects, such as commercially available hanging folders or the like. has or a basket or a drawer for the transport of other goods.
- a telescopic Suspension can have direct access to the person after pulling out the pull-out device. even if the person is significantly disabled. Since the seated person does not have to bend too far to the side or back, the risk of the wheelchair tipping over is also reduced.
- the seat is arranged with its center approximately above the imaginary connecting axis of rotation of the barrel axis, whereby the center of gravity of a seated person is just behind this axis in the direction of travel and being on the At least one steering and support roller is articulated on the rear of the wheelchair.
- the access to the pulled-out support device is considerably simplified and the position of the person in relation to the wheels for driving them is also improved, since access to the gripping rings is cheaper.
- the castors can turn more easily when turning. Apart from the fact that the overall length of the wheelchair can be shortened considerably by the arrangement according to the invention, its maneuverability is also increased.
- This advantage exists both in terms of the effort required by the person to steer the wheelchair and the short, maintainable turning radii due to the short center distance. These advantages are particularly important when used in the office, for example when starting up at a desk.
- the main advantage of using it in the office is that the disabled person can cope with almost the same space requirement as a non-disabled person. The person does not need a separate job.
- At least one steering and support roller is articulated on the front of the wheelchair.
- two steering and support rollers are arranged on the rear of the wheelchair, while such a role on the front is sufficient so that the wheels create a five-point support on the floor, similar to what is required for office chairs that are equipped with roles.
- a wheelchair is known in which the center of gravity is shifted to the rear and in which a steering and support roller is provided at the front and rear (DE-A-27 51 079).
- this known wheelchair does not have hub-free wheels, so that this crucial feature is not present.
- a rotating roller bearing serves as the support bearing, the non-rotating inner ring of which forms part of the chassis.
- the roles can be kept relatively far apart, for example, by cages in order to get by with a minimum of roles.
- the inclination of the seat and / or backrest is adjustable. This is especially true when the wheelchair is to be suitable for use in an office, whereby the seat shells customary for office chairs can certainly be used, in particular with anti-slip protection in the event of a negative seat angle.
- the seat can be equipped with a multi-chamber air cushion, which on the one hand makes long-term sitting more bearable.
- a controllable connection between the individual air cushions through which an air cushion wedge lying between the thighs of the person can be automatically inflated in the case of an inclined position (negative sitting position) in order to prevent slipping.
- a valve arranged in the adjustment device for the seat inclination can be used for control. If the seat inclination is negative, an air cushion part blows between the two Thighs that stop slipping forward. The wedge is not present at the positive seat angle. It is therefore possible to adopt different sitting postures. The footrest is then sprung to follow the movement of the seat.
- the wheelchair can be folded up, which is particularly useful when using crossbars and, in particular, is easy to implement due to the fact that there is a relatively large free space between the wheels.
- the wheelchair according to the invention is equipped with a chassis which has a frame which has two support rings 1 arranged largely parallel to one another, which are rigidly connected to one another via four cross bars 2.
- a chassis which has a frame which has two support rings 1 arranged largely parallel to one another, which are rigidly connected to one another via four cross bars 2.
- hub-free impellers 3 are mounted on the support rings 1 via radial bearings (not shown).
- Grip rings 4 are attached to each of the running wheels 3, by means of which the person 5, only indicated by dashed lines, can operate the running wheels.
- the person 5 sits on a seat 6 which is adjustable in its inclined position and which is arranged via an adjusting device 7, which in turn rests on brackets 8 which are each fastened to two cross bars 2.
- a sliding part 17 is provided on the front part of the seat 6.
- An arm 9 is also adjustably attached to the adjusting device 7, on which a likewise adjustable backrest 11 is arranged.
- two steering and support rollers 13 are articulated via cantilever arms 12, while in the same way only one steering and support roller 13 is articulated on the front cross bar 2.
- the respective roller can yield upwards or backwards or forwards, for which it is connected to the respective rod by spring means (not shown).
- a footrest 14 is also attached to the front lower crossbar 2.
- a storage device 16 is provided which can be pulled out laterally through the hubless impellers via a telescopic system in such a way that it is easily accessible from above.
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- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
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- Veterinary Medicine (AREA)
- Handcart (AREA)
- Motorcycle And Bicycle Frame (AREA)
Abstract
Description
Die Erfindung geht aus von einem Rollstuhl nach der Gattung des Hauptanspruchs, wobei es nicht nur um die Verbesserung des Comforts für körperbehinderte Personen geht, sondern auch um die Ausweitung des Einsatz- oder Anwendungsbereichs solcher Rollstühle.The invention relates to a wheelchair according to the preamble of the main claim, which is not only about improving comfort for physically handicapped people, but also about expanding the range of use or application of such wheelchairs.
Die meisten bekannten Rollstühle weisen ein Fahrwerk auf, das im hinteren Teil von zwei Laufrädern getragen wird, an denen Greifringe zu deren Transport angeordnet sind und an deren vorderem Teil Lenk- und Stützrollen angelenkt sind, -während ebenfalls im vorderen Teil der Sitz und die Rückenlehne so angeordnet sind, daß der Schwerpunkt erheblich vor der Achse der Laufräder liegt, um ein Nachhintenkippen der den Rollstuhl benutzenden Person zu vermeiden. Dabei steht die Hälfte des Raddurchmessers hinter der Rückenlehne über, was zu einer entsprechend großen Fahrzeuglänge führt. Dies führt zu einem großen unnötigen Raumbedarf. Diese meist gewählte Anordnung eines Rollstuhls hat den Nachteil, daß für die Antriebsbewegung des Rollstuhls über die Arme der Person diese verhältnismäßig weit nach unten greifen müssen, was jeweils mit einer oft nur unter Schwierigkeiten möglichen beugenden Rumpfbewegung möglich ist. Es handelt sich jedenfalls um eine unökonomische Bewegung. Nichts desto weniger ist die Gefahr eines Abkippens nach Hinten bei kräftigem Antrieb während der Vorwärtsfahrt und möglicherweise Vertikalstößen auf die Lenk- und Stützrolle. Besonders schwierig ist bei dieser Art Rollstühle das Mitnehmen von irgendwelchen Waren bzw. Gegenständen. Nicht zuletzt läßt auch die Sitzqualität der bekannten Rollstühle zu wünschen übrig.Most known wheelchairs have a chassis that is carried in the rear part by two wheels, on which gripping rings are arranged for their transport and on the front part of which steering and support rollers are articulated, while the seat and the backrest are also in the front part so are arranged so that the center of gravity lies significantly in front of the axis of the wheels in order to prevent the person using the wheelchair from tipping backwards. Half of the wheel diameter protrudes behind the backrest, which leads to a correspondingly long vehicle length. This leads to a large unnecessary space requirement. This mostly chosen arrangement of a wheelchair has the disadvantage that for the drive movement of the wheelchair over the arms of the person they have to reach down relatively far, which is possible in each case with a diffractive torso movement which is often only possible with difficulty. In any case, it is an uneconomical movement. Nonetheless, there is a risk of tipping backwards with powerful drive during forward travel and possibly vertical impacts on the steering and support roller. This type of wheelchair is particularly difficult to take with you any goods or objects. Last but not least, the seating quality of the well-known wheelchairs also leaves something to be desired.
Der erfindungsgemäße Rollstuhl mit den Merkmalen des Hauptanspruchs hat abgesehen von der Vermeidung oben genannter Nachteile darüber hinaus den Vorteil, daß er als gewerblicher Arbeitsstuhl verwendbar ist, bspw. im Büro. Die den Rollstuhl benutzende Person kann mit ihm unmittelbar an den Schreibtisch heranfahren und manche Arbeitsmittel über die Auflageeinrichtung des Rollstuhls transportieren.Apart from avoiding the disadvantages mentioned above, the wheelchair according to the invention with the features of the main claim also has the advantage that it can be used as a commercial work chair, for example in the office. The person using the wheelchair can drive it directly to the desk and transport some work equipment via the wheelchair support device.
Es ist zwar ein Rollstuhl mit unter dem Sitz am Fahrwerk angeordneten Stauraum an sich bekannt ( EP-A-0 127 511). Der Nachteil dieses Rollstuhls besteht jedoch darin, daß die Zugänglichkeit zum Stauraum von der Vorderseite oder der Rückseite des Rollstuhls gegeben ist, Rollstuhlseiten zu denen normalerweise die körperbehinderte Person keinen Zugang hat.A wheelchair with storage space arranged under the seat on the chassis is known per se (EP-A-0 127 511). The disadvantage of this wheelchair, however, is that there is access to the storage space from the front or the rear of the wheelchair, wheelchair sides to which the physically disabled person normally has no access.
Auch Rollstühle, deren zwei Laufräder als Laufringe ausgebildet nabenfrei sind und über Stützlager mit dem Fahrwerk verbunden sind, sind bekannt (DE-A-38 19 925, EP-A-O 430 794). Durch die Verwendung von nabenfreien Laufrädern soll vor allem die Verletzungsgefahr der körperbehinderten Person herabgesetzt werden und es beseht mehr Leerraum unter dem Sitz zur Aufnahme einfacher Transporthilfsmittel wie z.B.Tabletts.Wheelchairs, the two wheels of which are hub-free and are connected to the chassis via support bearings, are also known (DE-A-38 19 925, EP-A-O 430 794). The use of hub-free wheels is primarily intended to reduce the risk of injury to the physically handicapped person and there is more empty space under the seat to accommodate simple transport aids such as trays.
Durch die Erfindung wird erzielt, daß der möglicherweise nutzbare Raum zwischen den beiden Laufrädern nahezu vollständig ausnutzbar ist. Die Querstangen bilden mit den Tragelementen einen "Käfig". Nicht zuletzt wird durch diese Art der Rahmenbildung eine hohe innere Stabilität erzielt. Nach einer speziellen Ausgestaltung sind mindestens zwei derartige Querstangen vorhanden, wobei an diesen Querstangen Lenk- Stützrollen, Sitz und Rückenlehne oder die Auflageeinrichtung befestigbar sind. Natürlich können erfindungsgemäß die Lenk-Stützrollen bzw. die Fußstützen auch unmittelbar an anderen Teilen des Fahrwerks befestigt sein. Abgesehen davon, daß derartige Querstangen auf Grund ihrer konstruktiven Lage eine bevorzugte Lage zur Befestigung dieser Teile darstellen, ist auch die Kraftübertragung von diesen Querstangen zu den Tragelementen besonders gut abfangbar. Als Tragelement kann bevorzugt ein Tragring dienen, der sich über Radiallager am jeweiligen Laufrad abstützt. Natürlich können auch die Querstangen zusätzlich miteinander untereinander verbunden sein, beispielsweise bei der Anordnung des Sitzes oder der Rückenlehne, wobei zwei derartige Querstangen dafür verwendbar sind.It is achieved by the invention that the space that can possibly be used between the two impellers can be used almost completely. The crossbars form a "cage" with the support elements. Last but not least, this type of frame formation achieves high internal stability. According to a special embodiment, at least two crossbars of this type are present, with steering support rollers, seat and backrest or the support device being attachable to these crossbars. Of course, according to the invention, the steering support rollers or the footrests can also be attached directly to other parts of the chassis. In addition to the fact that such crossbars represent a preferred position for fastening these parts due to their structural position, the power transmission from these crossbars to the support elements is particularly easy to intercept. A support ring can preferably serve as the support element, which is supported on the respective impeller via radial bearings. Of course, the crossbars can also be connected to one another, for example when arranging the seat or the backrest, two such crossbars being usable for this purpose.
Nach einer vorteilhaften Ausgestaltung der Erfindung weist die Ablageeinrichtung eine durch das offene Radsegment herausziehbare Auszieheinrichtung auf, die eine Bügelvorrichtung zur Aufnahme von Gegenständen, wie handelsübliche Hängemappen odgl. aufweist oder einen Korb bzw. eine Schublade hat zum Transport von sonstigen Gütern. Durch die Auszieheinrichtung die beispielsweise über eine teleskopartige Aufhängung verfügen kann, ist für die Person nach herausziehen der Auszieheinrichtung eine unmittelbare Zugänglichkeit gegeben. auch dann, wenn eine erhebliche Bewegungsbehinderung der Person vorhanden ist. Da der Sitzende sich nicht zu weit nach seitlich bzw. hinten seitlich herausbeugen muß, wird auch die Gefahr eines Kippens des Rollstuhls vermindert.According to an advantageous embodiment of the invention, the storage device has a pull-out device which can be pulled out through the open wheel segment and which has an ironing device for holding objects, such as commercially available hanging folders or the like. has or a basket or a drawer for the transport of other goods. By pulling out the, for example, a telescopic Suspension can have direct access to the person after pulling out the pull-out device. even if the person is significantly disabled. Since the seated person does not have to bend too far to the side or back, the risk of the wheelchair tipping over is also reduced.
Nach einer weiteren vorteilhaften an sich bekannten (DE-A-182 471) Ausgestaltung der Erfindung ist der Sitz mit seinem Zentrum etwa über der gedachten Verbindungsdrehachse der Laufachse angeordnet, wodurch der Schwerpunkt einer sitzenden Person in Fahrtrichtung knapp hinter dieser Achse liegt und wobei auf der Rückseite des Rollstuhls mindestens eine Lenk- und Stützrolle am Fahrwerk angelenkt ist. Auf diese Weise wird der Zugriff in die herausgezogene Auflageeinrichtung wesentlich vereinfacht und es wird auch die Lage der Person in Bezug auf die Laufräder für deren Antrieb verbessert, da der Zugriff an die Greifringe günstiger ist. Da der Schwerpunkt der Person zwar hinter aber nahe der Ablage der Laufräder liegt, können die Lenkrollen beim Wenden leichter umschlagen. Abgesehen davon, daß durch die erfindungsgemäße Anordnung die Gesamtbaulänge des Rollstuhles wesentlich verkürzbar ist, wird auch seine Wendigkeit erhöht. Dieser Vorteil besteht sowohl in Hinsicht auf den Kräfteaufwand der Person beim Steuern des Rollstuhls, als auch die kurzen einhaltbaren Wenderadien auf Grund des kurzen Achsabstandes. Diese Vorteile wirken sich besonders beim Einsatz im Büro, bspw. beim Anfahren an einen Schreibtisch, aus. Der Einsatz im Büro hat vor allem den Vorteil, daß die behinderte Person mit annähernd demselben Platzbedarf wie ein Nichtbehinderter zurecht kommt. Die Person benötigt keinen gesonderten Arbeitsplatz.According to a further advantageous known (DE-A-182 471) embodiment of the invention, the seat is arranged with its center approximately above the imaginary connecting axis of rotation of the barrel axis, whereby the center of gravity of a seated person is just behind this axis in the direction of travel and being on the At least one steering and support roller is articulated on the rear of the wheelchair. In this way, the access to the pulled-out support device is considerably simplified and the position of the person in relation to the wheels for driving them is also improved, since access to the gripping rings is cheaper. Since the focus of the person is behind but near the storage of the wheels, the castors can turn more easily when turning. Apart from the fact that the overall length of the wheelchair can be shortened considerably by the arrangement according to the invention, its maneuverability is also increased. This advantage exists both in terms of the effort required by the person to steer the wheelchair and the short, maintainable turning radii due to the short center distance. These advantages are particularly important when used in the office, for example when starting up at a desk. The main advantage of using it in the office is that the disabled person can cope with almost the same space requirement as a non-disabled person. The person does not need a separate job.
Nach einer weiteren vorteilhaften ebenfalls an sich bekannten (siehe oben) Ausgestaltung der Erfindung ist auf der Vorderseite des Rollstuhls mindestens eine Lenk- und Stützrolle am Fahrwerk angelenkt. Auf diese Weise wird eine sehr hohe Kippstabilität erreicht. Nach einer speziellen Ausgestaltung der Erfindung sind auf der Rückseite des Rollstuhls zwei Lenk-und Stützrollen angeordnet, während auf der Vorderseite eine solche Rolle genügt, sodaß mit den Laufrädern eine Fünfpunkt-Auflage zum Boden hin entsteht, ähnlich wie sie bei Bürostühlen gefordert wird, die mit Rollen versehen sind. Es ist zwar ein Rollstuhl bekannt, bei dem der Schwerpunkt nach hinten verlagert ist und bei dem vorne sowie hinten je eine Lenk- und Stützrolle vorgesehen ist (DE-A-27 51 079). Dieser bekannte Rollstuhl weist jedoch nicht nabenfreie Laufräder auf, sodaß dieses entscheidende Merkmal nicht vorhanden ist.According to a further advantageous embodiment of the invention, which is also known per se (see above), at least one steering and support roller is articulated on the front of the wheelchair. In this way, a very high stability against tipping is achieved. According to a special embodiment of the invention, two steering and support rollers are arranged on the rear of the wheelchair, while such a role on the front is sufficient so that the wheels create a five-point support on the floor, similar to what is required for office chairs that are equipped with roles. A wheelchair is known in which the center of gravity is shifted to the rear and in which a steering and support roller is provided at the front and rear (DE-A-27 51 079). However, this known wheelchair does not have hub-free wheels, so that this crucial feature is not present.
Nach einer weiteren vorteilhaften Ausgestaltung der Erfindung dienst als Stützlager ein umlaufendes Rollenlager, dessen nichtmitlaufender Innenring Teil des Fahrwerks bildet. Die Rollen können beispielsweise durch Käfige verhältnismäßig weit auseinandergehalten werden um dadurch mit einem Minimum an Rollen auszukommen.According to a further advantageous embodiment of the invention, a rotating roller bearing serves as the support bearing, the non-rotating inner ring of which forms part of the chassis. The roles can be kept relatively far apart, for example, by cages in order to get by with a minimum of roles.
Nach einer weiteren vorteilhaften Ausgestaltung der Erfindung ist die Neigung von Sitz und/oder Rückenlehne verstellbar. Dies gilt besonders dann wenn der Rollstuhl für den Einsatz in einem Büro geeignet sein soll, wobei durchaus die bei Bürostühlen üblichen Sitzschalen verwendbar sind, insbesondere mit einer Abrutschsicherung bei negativem Sitzflächenwinkel.According to a further advantageous embodiment of the invention, the inclination of the seat and / or backrest is adjustable. This is especially true when the wheelchair is to be suitable for use in an office, whereby the seat shells customary for office chairs can certainly be used, in particular with anti-slip protection in the event of a negative seat angle.
Ergänzend dafür kann nach einer weiteren vorteilhaften Ausgestaltung der Erfindung die Sitzfläche mit einem Mehrkammerluftkissen ausgestattet sein, was einerseits das Langzeitsitzen erträglicher macht.In addition, according to a further advantageous embodiment of the invention, the seat can be equipped with a multi-chamber air cushion, which on the one hand makes long-term sitting more bearable.
Nach einer weiteren vorteilhaften Ausgestaltung der Erfindung besteht zwischen.einzelnen Kuftkissen eine steuerbare Verbindung durch die bei nach vorn geneigter Schräglage (negative Sitzlage) ein zwischen den Oberschenkeln der Person liegender Luftkissenkeil automatisch aufblasbar ist, um ein Abrutschen zu unterbinden. Zur Steuerung kann beispielsweise ein in der Einstelleinrichtung für die Sitzschräglage angeordnetes Ventil dienen.Bei einer negativen Sitzflächenneigung bläst sich ein Luftkissenteil zwischen den Oberschenkeln auf, der das Abrutschen nach vorn stoppt. Beim positiven Sitzflächenwinkel ist der Keil nicht vorhanden. Es ist somit möglich unterschiedliche Sitzhaltungen einzunehmen. Die Fußstütze ist dann angefedert um der Bewegung des Sitzes zu folgen.According to a further advantageous embodiment of the invention, there is a controllable connection between the individual air cushions, through which an air cushion wedge lying between the thighs of the person can be automatically inflated in the case of an inclined position (negative sitting position) in order to prevent slipping. For example, a valve arranged in the adjustment device for the seat inclination can be used for control. If the seat inclination is negative, an air cushion part blows between the two Thighs that stop slipping forward. The wedge is not present at the positive seat angle. It is therefore possible to adopt different sitting postures. The footrest is then sprung to follow the movement of the seat.
Nach einer weiteren vorteilhaften Ausgestaltung der Erfindung ist der Rollstuhl zusammenfaltbar, was sich bei der Verwendung von Querstangen besonders anbietet und insbesondere dadurch, daß ein verhältnismäßig großer Freiraum zwischen den Laufrädern vorhanden ist, auch leicht verwirklichbar ist.According to a further advantageous embodiment of the invention, the wheelchair can be folded up, which is particularly useful when using crossbars and, in particular, is easy to implement due to the fact that there is a relatively large free space between the wheels.
Weitere Vorteile und vorteilhafte Ausgestaltungen der Erfindung sind der nachfolgenden Beschreibung, der Zeichnung und den Ansprüchen entnehmbar.Further advantages and advantageous embodiments of the invention can be found in the following description, the drawing and the claims.
Ein Ausführungsbeispiel des Gegenstandes der Erfindung ist in der Zeichnung in zwei Varianten dargestellt und im folgenden näher beschrieben. Es zeigen:
- Fig. 1
- Einen Längsschnitt durch den Rollstuhl entsprechend der Linie I.I in Fig 2
- Fig. 2
- eine Draufsicht auf den Rollstuhl mit Teilquerschnitt als erste Variante mit einem Bügel und
- Fig. 3
- den Rollstuhl in perspektivischer Ansicht, mit der zweiten Variante mit Schublade.
- Fig. 1
- A longitudinal section through the wheelchair along the line II in Fig. 2nd
- Fig. 2
- a top view of the wheelchair with partial cross section as the first variant with a bracket and
- Fig. 3
- the wheelchair in perspective view, with the second variant with a drawer.
Wie der Zeichnung entnehmbar ist, ist der erfindungsgemäße Rollstuhl mit einem Fahrwerk ausgestattet, welches einen Rahmen aufweist, der zwei weitgehend parallel zueinander angeordnete Tragringe 1 aufweist, die über vier Querstangen 2 starr miteinander verbunden sind. Um diese Tragringe 1 sind jeweils nabenfreie Laufräder 3 über nicht dargestellte Radiallager auf den Tragringen 1 gelagert. An den Laufrädern 3 sind jeweils Greifringe 4 angebracht, über die, die nur gestrichelt angedeutete Person 5 die Laufräder betätigen kann.As can be seen from the drawing, the wheelchair according to the invention is equipped with a chassis which has a frame which has two
Die Person 5 sitzt auf einem in seiner Schräglage verstellbaren Sitz 6, der über eine Einstelleinrichtung 7 angeordnet ist, die wiederum auf Konsolen 8 ruht, welche jeweils an zwei Querstangen 2 befestigt sind.Am vorderen Teil des Sitzes 6 ist ein Abrutschteil 17 vorgesehen. An der Einstelleinrichtung 7 ist zudem ein Arm 9 verstellbar befestigt, an welchem eine ebenfalls verstellbare Rückenlehne 11 angeordnet ist. An der unteren hinteren Querstange 2 sind über Kragarme 12 zwei Lenk- und Stützrollen 13 angelenkt, während an der vorderen Querstange 2 in gleicher Weise nur eine Lenk- und Stützrolle 13 angelenkt ist. Wie in der Zeichnung gestrichelt dargestellt kann die jeweilige Rolle nach oen bzw. hinten oder vorne nachgeben, wofür sie durch nicht dargestellte Federmittel mit der jeweiligen Stange verbunden ist. Ebenfalls an der vorderen unteren Querstange 2 ist eine Fußstütze 14 befestigt.The
An den Konsolen 8, also unterhalb des Sitzes 6 ist eine Ablageeinrichtung 16 vorgesehen, die über ein Teleskopsystem seitlich durch die nabenlosen Laufräder so herausziehbar ist, daß sie von oben problemlos zugänglich wird.On the brackets 8, ie below the
Alle in der Beschreibung den nachfolgenden Ansprüchen und in den Zeichnungen dargestellten Merkmale können sowohl einzeln als auch in beliebiger Kombination miteinander erfindungswesentlich sein.All of the features shown in the description of the following claims and in the drawings can be essential to the invention both individually and in any combination with one another.
- 1.1.
- TragringeSupport rings
- 2.2nd
- QuerstangenCrossbars
- 3.3rd
- LaufräderWheels
- 4.4th
- GreifringeHand rims
- 5.5.
- Personperson
- 6.6.
- SitzSeat
- 7.7.
- EinstelleinrichtungAdjustment device
- 8.8th.
- KonsolenConsoles
- 9.9.
- Armpoor
- 10.10th
- ---
- 11.11.
- Rückenlehnebackrest
- 12.12th
- KragarmCantilever
- 13.13.
- Lenk- und StützrolleSwivel and support roller
- 14.14.
- FußstützeFootrest
- 15.15.
- AuflageeinrichtungSupport device
- 16.16.
- TeleskoprohreTelescopic tubes
- 17.17th
- LuftkissenteilAir cushion part
Claims (10)
- Wheelchair, especially for disabled persons- with an undercarriage having a seat (6), a backrest (11) and a footrest (14),- with two running wheels provided with grip rings (4), the running wheels being formed as bearing races (3) without wheel hubs and- with support rings (1) forming a part of the wheelchair frame, by which the running wheels are connected by support bearings and- with at least one steering- and support wheel (13) connected to the undercarriage,characterized by the fact- that the support rings are connected by transverse braces, whereas the support rings are fastened to the transverse braces,- that a free space underneath the seat (6)between the transverse braces is for receiving depository devices and- that the depository device or the like is accessible through the axially open segment of at least one of the running wheels.
- Wheelchair in accordance with claim 1, characterized by the fact, that the depository device comprises a pullout device (16) which may be pulled out through the open segment and which is provided with a frame arrangement for receiving articles, such as hanging folders etc. or with a basket or a drawer for transporting other goods.
- Wheelchair in accordance with claim 1 or 2, characterized by the fact, that the center of the seat (6) is arranged approximately above the imaginary connecting rotary axis of the running wheels (3), whereby the center of gravity of a seated person (5), in the direction of movement, is located behind this axis, and that at the rear of the wheelchair at least one steering- and support wheel (13) is connected to the undercarriage.
- Wheelchair in accordance with claim 3, characterized by the fact that for providing a relative yielding in the vertical direction and in the direction of movement the steering and support wheels are resiliently mounted on the transverse brace or the support ring.
- Wheelchair in accordance with one of the preceding claims, characterized by the fact, that there are at least two such transverse braces (2) provided and that two steering-/ support wheels (13), the seat (6) and the backrest (11) or the depository means (15) may be attached thereto.
- The apparatus in accordance with one of the preceding claims, characterized by the fact that the support bearing is a rotary roller bearing and the stationary inner ring of which has an annular support element constitutes a part of the undercarriage.
- Wheelchair in accordance with one of the preceding claims, characterized by the fact, that the inclination of the seat (6) and/or the backrest (11) is adjustable.
- Wheelchair in accordance with one of the preceding claims, characterized by the fact, that the seat (6) is provided with a multiple chamber air cushion.
- Wheelchair in accordance with claim 9, characterized by the fact, that controllable air connections are provided between the air cushions by which at a forward inclination (negative seat position) a wedged air cushion (17) positioned between the upper thighs of a person may be inflated to prevent sliding off.
- The apparatus in accordance with one of the preceding claims, characterized by the fact, that by means of the undercarrriage the wheelchair is collapsible.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4315790 | 1993-05-12 | ||
| DE4315790 | 1993-05-13 | ||
| PCT/DE1994/000563 WO1994026227A1 (en) | 1993-05-12 | 1994-05-13 | Wheelchair, in particular for physically disabled persons |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0697848A1 EP0697848A1 (en) | 1996-02-28 |
| EP0697848B1 true EP0697848B1 (en) | 1997-08-06 |
Family
ID=6487857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94915034A Expired - Lifetime EP0697848B1 (en) | 1993-05-12 | 1994-05-13 | Wheelchair, in particular for physically disabled persons |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0697848B1 (en) |
| AU (1) | AU6644594A (en) |
| DE (2) | DE59403666D1 (en) |
| WO (1) | WO1994026227A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2778156B1 (en) * | 1998-04-30 | 2000-07-21 | Peugeot | SLIDING MOUNTED STORAGE DEVICE UNDER A VEHICLE SEAT |
| US8628084B1 (en) | 2013-03-02 | 2014-01-14 | Wms Gaming Inc. | Gaming machine having hub-less reels |
| EP4112029A1 (en) | 2021-06-30 | 2023-01-04 | COSMOTECH Sp. z o.o. | Hubless drive module and electric wheelchair using such module |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB678878A (en) * | 1950-06-28 | 1952-09-10 | Jack Leslie Cross | Improvements relating to wheel-chairs, more especially invalid chairs |
| US5074617A (en) * | 1988-05-03 | 1991-12-24 | Len Maxwell | Storage compartment for wheelchair |
| FR2654927B1 (en) * | 1989-11-28 | 1994-02-11 | Pierre Jose Soto | REMOVABLE WHEELCHAIR. |
-
1994
- 1994-05-13 DE DE59403666T patent/DE59403666D1/en not_active Expired - Fee Related
- 1994-05-13 WO PCT/DE1994/000563 patent/WO1994026227A1/en active IP Right Grant
- 1994-05-13 AU AU66445/94A patent/AU6644594A/en not_active Abandoned
- 1994-05-13 DE DE4416754A patent/DE4416754A1/en not_active Withdrawn
- 1994-05-13 EP EP94915034A patent/EP0697848B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE4416754A1 (en) | 1994-12-08 |
| AU6644594A (en) | 1994-12-12 |
| EP0697848A1 (en) | 1996-02-28 |
| WO1994026227A1 (en) | 1994-11-24 |
| DE59403666D1 (en) | 1997-09-11 |
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