EP1772129B1 - Wheelchair frame - Google Patents

Wheelchair frame Download PDF

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Publication number
EP1772129B1
EP1772129B1 EP06016728A EP06016728A EP1772129B1 EP 1772129 B1 EP1772129 B1 EP 1772129B1 EP 06016728 A EP06016728 A EP 06016728A EP 06016728 A EP06016728 A EP 06016728A EP 1772129 B1 EP1772129 B1 EP 1772129B1
Authority
EP
European Patent Office
Prior art keywords
frame
seat
chassis
strut
chassis frame
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.)
Not-in-force
Application number
EP06016728A
Other languages
German (de)
French (fr)
Other versions
EP1772129A3 (en
EP1772129A2 (en
Inventor
Andreas Nahrwold
Saverio Frisina
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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Publication date
Application filed by Meyra Wilhelm Meyer GmbH and Co KG filed Critical Meyra Wilhelm Meyer GmbH and Co KG
Publication of EP1772129A2 publication Critical patent/EP1772129A2/en
Publication of EP1772129A3 publication Critical patent/EP1772129A3/en
Application granted granted Critical
Publication of EP1772129B1 publication Critical patent/EP1772129B1/en
Not-in-force legal-status Critical Current
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
    • A61G5/10—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
    • A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
    • A61G5/0808—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction
    • A61G5/0816—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding side to side, e.g. reducing or expanding the overall width of the wheelchair
    • A61G5/0825—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding side to side, e.g. reducing or expanding the overall width of the wheelchair comprising a scissor-type frame, e.g. having pivoting cross bars for enabling folding
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1054—Large wheels, e.g. higher than the seat portion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
    • A61G5/125—Rests specially adapted therefor, e.g. for the head or the feet for arms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
    • A61G5/128—Rests specially adapted therefor, e.g. for the head or the feet for feet
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1056—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
    • A61G5/1062—Arrangements for adjusting the seat adjusting the width of the seat

Definitions

  • the invention relates to a Faltrollstuhlrahmen.
  • wheelchair frame From the prior art a variety of embodiments of wheelchair frame are already known. A distinction is made between foldable folding wheelchairs and rigid wheelchairs. In folding wheelchairs, the two side frames are approachable. This is done by means of a pair of scissors. The two side frames each carry a front wheel and a rear wheel and the associated seat or seat back, push handles and the like.
  • the EP 1 384 461 A1 shows a rigid wheelchair frame, which carries the front wheels and rear wheels. It is therefore not a Faltrollstuhlrahmen. On this rigid frame a seat frame is attached.
  • US 4 082 348 A The US 5 904 398 A and US 4 989 890 A each show folding wheelchairs conventional design with a left and a right side frame, both the wheels and wearing the scissors.
  • the subdivision into a chassis frame and a seat frame is not provided.
  • the U.S. 4,082,348 discloses a folding wheelchair with scissors.
  • the folding wheelchair comprises a lower side frame, on which a seat frame is mounted. This is mounted by means of a telescopic unit height adjustable on the chassis frame.
  • the invention has for its object to provide a Faltrollstuhlrahmen which allows for a simple design and simple, cost manufacturability individual adjustment of the seating position.
  • the Faltrollstuhlrahmen consists of two frame components, namely the chassis frame and the seat frame. Since it is a folding wheelchair frame, a chassis frame is provided on each side (right and left). The same applies to the right and the left seat frame.
  • the two seat frames are connected by a pair of scissors, as known from the prior art in folding wheelchairs.
  • the solution according to the invention thus provides the possibility of being able to make the most varied settings of the seated position by means of the respective assignment of the chassis frame and the seat frame, without thereby impairing the chassis construction itself.
  • the chassis frame carries a steerable front wheel (steering wheel) and a rear wheel.
  • the center distance and the height and positioning of the steering wheels are thus individually adjustable to the chassis frame. The same applies to the position of the bearing of the rear wheel.
  • the chassis frame thus provides the basic structure, which determines the driving characteristics and the driving geometry of the folding wheelchair frame.
  • the foldable seat frame is mounted on the chassis frame according to the invention. This can be adjusted individually relative to the chassis frame to adjust the seat height and seat depth to the respective requirements. It is also possible to jack the seat frame relative to the chassis frame or to adjust the inclination.
  • the side frame is mounted on the inside of the chassis frame. This makes it possible that the two constructions can be formed substantially independently of each other and are adjustable or adjustable accordingly.
  • the side frame is mounted by means of at least one bearing element height adjustable on the chassis frame.
  • the bearing element is designed to be pivotable.
  • the side frame is preferably designed U-shaped. It thus comprises a front strut and a rear strut, which are connected by a lower strut.
  • a front strut By the front and the rear strut, it is possible to provide two bearing elements.
  • the stability of the Faltrollstuhlrahmens is significantly increased. In comparison, the most diverse adjustment variants result.
  • the scissor bearing is preferably mounted on the side frame so that it can be adjusted in height.
  • the bearing of the scissor bearing takes place on the front strut of the side frame.
  • the Faltrollstuhlrahmen thus diverse settings that are possible with conventional frame structures, neither in Faltrollstühlen still with rigid wheelchairs.
  • the Faltrollstuhlrahmen invention is particularly suitable for children's wheelchairs.
  • the adjustability does not set the Use of additional components and the replacement of components ahead. Rather, the Faltrollstuhlrahmen can be variably adjusted from its own design.
  • the inventive construction of the chassis frame makes it possible to manufacture this from a strut or from a tube. This results in a high degree of stability on the one hand. On the other hand, low production costs result.
  • chassis frame of the seat frame Due to the independence of the chassis frame of the seat frame, it is possible to make them interchangeable, so that different suspensions can be realized, for example when using different chassis frame without the rest of the construction of the wheelchair would be affected.
  • chassis frame Due to the inventive design of the chassis frame this is still so formed that can be dispensed with telescopic tubes or the like entirely. This plays an advantageous role especially in the lower pivot bearings for the steering wheels.
  • the wheelchair user is thus completely seated in the seat frame.
  • this advantageously has a footboard, which is mounted on the seat frame.
  • the seat frame is provided with the backrest.
  • a wheel cover or armrest can be attached laterally to the chassis frame.
  • the invention results in a variety of different design variants.
  • the wheelchair according to the invention comprises two front steering wheels 1 and two rear wheels 2.
  • the steering wheels 1 and rear wheels 2 are each attached to a lateral chassis frame 3.
  • the chassis frame 3 as in particular from Fig. 4 can be seen, bent and cranked. It consists of a single tube, in the vertical lower free end of a not shown in detail bearings for the steering wheel 1 is introduced.
  • an adjustable bearing 14 which is horizontally displaceable in order to adjust the center distance can (see, for example Fig. 2 ).
  • the seat frame according to the invention is formed by two mutually parallel side frame 4, which are arranged within the two chassis frame 3 and fixed by means of bearing elements 7.
  • the attachment is detachable.
  • the figures show a variety of holes or recesses to allow for variable adjustment.
  • the bearing element 7 is pivotally adapted to realize a tilt or tilt of the seat frame and the related side frame 4 relative to the two chassis frame 3.
  • the two side frames 4 are each formed by a lower strut 9, a front strut 10 and a rear strut 11.
  • a scissor bearing 12 is mounted vertically adjustable, on which a pair of scissors 5 is mounted, which is connected to an upper seat stay 8.
  • the seat stay 8 is in the ready state (see, for example Fig. 2 ) in not individually designated scissor bearings, which form a snap connection or the like and at the same time provide a toggle for the secure positioning of the scissors 5 in the opened, ready-to-use state.
  • the wheelchair further comprises wheel covers 17 which can be adjustably arranged, for example on the rear strut 11 and the chassis frame 3.
  • the invention is not limited to the embodiment shown, but rather arise within the scope of the invention diverse Abwandlungs- and modification options, in particular with regard to the design and dimensioning of both the chassis frame 3 and the side frame 4 and thereby and by this guaranteed adjustment.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Handcart (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)
  • Memory System Of A Hierarchy Structure (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)

Abstract

The folding wheelchair frame has, on each side, a chassis frame (3) supporting the front steerable wheels (1) and rear wheels (2). There is a foldable seat frame attached to each side chassis frame. A side frame (4) is provided connected to a scissors linkage (5) to support the seat. The side frames are positioned inwardly of the chassis frames and can be height adjustable.

Description

Die Erfindung bezieht sich auf einen Faltrollstuhlrahmen.The invention relates to a Faltrollstuhlrahmen.

Aus dem Stand der Technik sind unterschiedlichste Ausgestaltungsformen von Rollstuhlrahmen vorbekannt. Dabei unterscheidet man zwischen faltbaren Faltrollstühlen sowie starren Rollstühlen. Bei Faltrollstühlen sind die beiden Seitenrahmen aneinander annäherbar. Dies geschieht mittels einer Schere. Die beiden Seitenrahmen tragen dabei jeweils ein Vorderrad und ein Hinterrad sowie den zugehörigen Sitz bzw. die Sitzlehne, Schiebegriffe und Ähnliches.From the prior art a variety of embodiments of wheelchair frame are already known. A distinction is made between foldable folding wheelchairs and rigid wheelchairs. In folding wheelchairs, the two side frames are approachable. This is done by means of a pair of scissors. The two side frames each carry a front wheel and a rear wheel and the associated seat or seat back, push handles and the like.

Bei den bekannten Faltrollstühlen erweist es sich als nachteilig, dass die Einstellung der Sitzposition sowie die Anpassung des Faltrollstuhls an unterschiedliche Bedürfnisse des Rollstuhlbenutzers nur beschränkt möglich ist und umfängliche Anpassungsarbeiten erforderlich macht.In the known Faltrollstühlen proves to be disadvantageous that the adjustment of the seat position and the adjustment of the folding wheelchair to different needs of the wheelchair user is limited and makes extensive adjustment work required.

Die aus dem Stand der Technik bekannten starren Rollstühle ermöglichen vielfach eine individuelle Anpassung der Sitzhöhe, der Sitztiefe sowie der Kantelung (Neigung) des Sitzes. Diese Rollstühle sind jedoch nicht oder nur in sehr beschränktem Umfang zusammenlegbar und deshalb schwer zu transportieren.The known from the prior art rigid wheelchairs often allow an individual adjustment of the seat height, the seat depth and the Kantelung (inclination) of the seat. However, these wheelchairs are not or only to a very limited extent collapsible and therefore difficult to transport.

Die EP 1 384 461 A1 zeigt einen starren Rollstuhlrahmen, welcher die Vorderräder und Hinterräder trägt. Es handelt sich somit nicht um einen Faltrollstuhlrahmen. Auf diesen starren Rahmen ist ein Sitzrahmen aufgesetzt.The EP 1 384 461 A1 shows a rigid wheelchair frame, which carries the front wheels and rear wheels. It is therefore not a Faltrollstuhlrahmen. On this rigid frame a seat frame is attached.

Die US 4 082 348 A , US 5 904 398 A und US 4 989 890 A zeigen jeweils Faltrollstühle üblicher Ausgestaltung mit einem linken und einen rechten Seitenrahmen, der sowohl die Räder als auch die Schere trägt. Die Unterteilung in einen Fahrwerksrahmen und einen Sitzrahmen ist nicht vorgesehen.The US 4 082 348 A . US 5 904 398 A and US 4 989 890 A each show folding wheelchairs conventional design with a left and a right side frame, both the wheels and wearing the scissors. The subdivision into a chassis frame and a seat frame is not provided.

Die US 4,082,348 offenbart einen Faltrollstuhl mit einer Schere. Der Faltrollstuhl umfasst einen unteren Seitenrahmen, an welchem ein Sitzrahmen gelagert ist. Dieser ist mittels einer Teleskopeinheit höhenverstellbar an dem Fahrwerkrahmen gelagert.The U.S. 4,082,348 discloses a folding wheelchair with scissors. The folding wheelchair comprises a lower side frame, on which a seat frame is mounted. This is mounted by means of a telescopic unit height adjustable on the chassis frame.

Der Erfindung liegt die Aufgabe zugrunde, einen Faltrollstuhlrahmen zu schaffen, welcher bei einfachem Aufbau und einfacher, kostengünstiger Herstellbarkeit eine individuelle Anpassung der Sitzposition ermöglicht.The invention has for its object to provide a Faltrollstuhlrahmen which allows for a simple design and simple, cost manufacturability individual adjustment of the seating position.

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 Faltrollstuhlrahmen aus zwei Rahmenkomponenten besteht, nämlich dem Fahrwerksrahmen sowie dem Sitzrahmen. Da es sich um einen Faltrollstuhlrahmen handelt, ist auf jeder Seite (rechts und links) jeweils ein Fahrwerksrahmen vorgesehen. Gleiches gilt für den rechten und den linken Sitzrahmen. Die beiden Sitzrahmen sind über eine Schere verbunden, so wie dies aus dem Stand der Technik bei Faltrollstühlen bekannt ist.According to the invention it is thus provided that the Faltrollstuhlrahmen consists of two frame components, namely the chassis frame and the seat frame. Since it is a folding wheelchair frame, a chassis frame is provided on each side (right and left). The same applies to the right and the left seat frame. The two seat frames are connected by a pair of scissors, as known from the prior art in folding wheelchairs.

Die erfindungsgemäße Lösung schafft somit die Möglichkeit, durch die jeweilige Zuordnung des Fahrwerksrahmens und des Sitzrahmens die unterschiedlichsten Einstellungen der Sitzposition vornehmen zu können, ohne dass hierdurch die Fahrwerkskonstruktion selbst beeinträchtigt wird. Der Fahrwerksrahmen trägt ein lenkbares Vorderrad (Lenkrad) sowie ein Hinterrad. Der Achsabstand sowie die Höhe und Positionierung der Lenkräder sind somit individuell an dem Fahrwerksrahmen einstellbar. Gleiches gilt für die Position des Lagers des Hinterrads.The solution according to the invention thus provides the possibility of being able to make the most varied settings of the seated position by means of the respective assignment of the chassis frame and the seat frame, without thereby impairing the chassis construction itself. The chassis frame carries a steerable front wheel (steering wheel) and a rear wheel. The center distance and the height and positioning of the steering wheels are thus individually adjustable to the chassis frame. The same applies to the position of the bearing of the rear wheel.

Der Fahrwerksrahmen gibt somit die Grundkonstruktion vor, welche die Fahreigenschaften sowie die Fahrgeometrie des Faltrollstuhlrahmens bestimmt.The chassis frame thus provides the basic structure, which determines the driving characteristics and the driving geometry of the folding wheelchair frame.

An dem Fahrwerksrahmen ist erfindungsgemäß der faltbare Sitzrahmen gelagert. Dieser kann relativ zu dem Fahrwerksrahmen individuell verstellt werden, um die Sitzhöhe und die Sitztiefe den jeweiligen Anforderungen anzupassen. Es ist auch möglich, den Sitzrahmen relativ zu dem Fahrwerksrahmen zu kanteln bzw. in der Neigung zu verstellen.On the chassis frame according to the invention the foldable seat frame is mounted. This can be adjusted individually relative to the chassis frame to adjust the seat height and seat depth to the respective requirements. It is also possible to jack the seat frame relative to the chassis frame or to adjust the inclination.

In günstiger Ausgestaltung der Erfindung ist vorgesehen, dass der Seitenrahmen an der Innenseite des Fahrwerksrahmens gelagert ist. Hierdurch wird ermöglicht, dass die beiden Konstruktionen im Wesentlichen unabhängig voneinander ausgebildet sein können und entsprechend einstellbar bzw. verstellbar sind.In a favorable embodiment of the invention it is provided that the side frame is mounted on the inside of the chassis frame. This makes it possible that the two constructions can be formed substantially independently of each other and are adjustable or adjustable accordingly.

In besonders günstiger Ausgestaltung der Erfindung ist vorgesehen, dass der Seitenrahmen mittels zumindest eines Lagerelements höhenverstellbar an dem Fahrwerksrahmen gelagert ist. In günstiger Weiterbildung ist vorgesehen, dass das Lagerelement schwenkbar ausgebildet ist. Somit können sowohl die Sitzhöhe als auch die Sitzneigung (Kantelung) mittels des Lagerelements entsprechend eingestellt werden, ohne dass hierzu weitere Bauelemente oder ähnliches erforderlich wären. Auch die Einstellung selbst kann auf einfache Weise selbst durch ungeübte Personen erfolgen.In a particularly favorable embodiment of the invention it is provided that the side frame is mounted by means of at least one bearing element height adjustable on the chassis frame. In a favorable development it is provided that the bearing element is designed to be pivotable. Thus, both the seat height and the seat tilt (tilt) can be adjusted by means of the bearing element accordingly, without the need for further components or the like would be required. Even the adjustment itself can be done easily even by untrained persons.

Der Seitenrahmen ist bevorzugterweise U-förmig ausgestaltet. Er umfasst somit eine vordere Strebe sowie eine hintere Strebe, die durch eine untere Strebe verbunden sind. Durch die vordere und die hintere Strebe ist es möglich, zwei Lagerelemente vorzusehen. Hierdurch wird die Stabilität des Faltrollstuhlrahmens erheblich gesteigert. Im Vergleich ergeben sich vielfältigste Einstellungsvarianten.The side frame is preferably designed U-shaped. It thus comprises a front strut and a rear strut, which are connected by a lower strut. By the front and the rear strut, it is possible to provide two bearing elements. As a result, the stability of the Faltrollstuhlrahmens is significantly increased. In comparison, the most diverse adjustment variants result.

Erfindungsgemäß ist bevorzugterweise das Scherenlager höhenverstellbar an dem Seitenrahmen gelagert. Bevorzugterweise erfolgt die Lagerung des Scherenlagers an der vorderen Strebe des Seitenrahmens. Es ist jedoch auch möglich, das Scherenlager an der hinteren Strebe oder der unteren Strebe anzubringen. Durch die höhenverstellbare Lagerung des Scherenlagers kann auf sehr einfache Weise die Sitzbreite eingestellt werden, da die Höhe des Scherenlagers den Öffnungsgrad der Schere und damit den Abstand zwischen den beiden Seitenrahmen in gebrauchsfertigem Zustand vorgibt.According to the invention, the scissor bearing is preferably mounted on the side frame so that it can be adjusted in height. Preferably, the bearing of the scissor bearing takes place on the front strut of the side frame. However, it is also possible to attach the scissor bearing on the rear strut or the lower strut. Due to the height-adjustable mounting of the scissor bearing, the seat width can be adjusted in a very simple manner, since the height of the scissors bearing sets the opening degree of the scissors and thus the distance between the two side frames in ready state.

Erfindungsgemäß gestattet der Faltrollstuhlrahmen somit vielfältigste Einstellungen, die bei herkömmlichen Rahmenaufbauten, weder bei Faltrollstühlen noch bei starren Rollstühlen möglich sind. Somit eignet sich der erfindungsgemäße Faltrollstuhlrahmen insbesondere für Kinderrollstühle. Die Einstellbarkeit setzt nicht die Verwendung zusätzlicher Bauteile sowie den Austausch von Bauteilen voraus. Vielmehr kann der Faltrollstuhlrahmen aus seiner eigenen Konstruktion heraus variabel verstellt werden.According to the invention allows the Faltrollstuhlrahmen thus diverse settings that are possible with conventional frame structures, neither in Faltrollstühlen still with rigid wheelchairs. Thus, the Faltrollstuhlrahmen invention is particularly suitable for children's wheelchairs. The adjustability does not set the Use of additional components and the replacement of components ahead. Rather, the Faltrollstuhlrahmen can be variably adjusted from its own design.

Die erfindungsgemäße Konstruktion des Fahrwerksrahmens ermöglicht es, diesen aus einer Strebe oder aus einem Rohr zu fertigen. Hierdurch ergibt sich zum einen ein hohes Maß an Stabilität. Zum anderen ergeben sich niedrige Herstellungskosten.The inventive construction of the chassis frame makes it possible to manufacture this from a strut or from a tube. This results in a high degree of stability on the one hand. On the other hand, low production costs result.

Durch die Unabhängigkeit des Fahrwerksrahmens von dem Sitzrahmen ist es möglich, diese austauschbar auszubilden, so dass beispielsweise bei Verwendung unterschiedlicher Fahrwerksrahmen unterschiedliche Fahrwerke realisiert werden können, ohne dass die restliche Konstruktion des Rollstuhls hierdurch beeinträchtigt würde.Due to the independence of the chassis frame of the seat frame, it is possible to make them interchangeable, so that different suspensions can be realized, for example when using different chassis frame without the rest of the construction of the wheelchair would be affected.

Durch die erfindungsgemäße Ausgestaltung des Fahrwerksrahmens ist dieser weiterhin so ausbildbar, dass auf Teleskoprohre oder ähnliches gänzlich verzichtet werden kann. Dies spielt insbesondere bei den unteren Schwenklagern für die Lenkräder eine vorteilhafte Rolle.Due to the inventive design of the chassis frame this is still so formed that can be dispensed with telescopic tubes or the like entirely. This plays an advantageous role especially in the lower pivot bearings for the steering wheels.

Der Rollstuhlbenutzer sitzt somit vollständig in dem Sitzrahmen. Hierzu weist dieser vorteilhafterweise ein Fußbrett auf, welches an dem Sitzrahmen gelagert ist. In gleicher Weise ist der Sitzrahmen mit der Rückenlehne versehen.The wheelchair user is thus completely seated in the seat frame. For this purpose, this advantageously has a footboard, which is mounted on the seat frame. In the same way, the seat frame is provided with the backrest.

Erfindungsgemäß können an dem Fahrwerksrahmen seitlich jeweils eine Radabdeckung oder Armstütze angebracht werden. Gleiches gilt für Schiebestangen oder Kippsicherungen. Alternativ hierzu ist es auch möglich, Schiebestangen oder Rückenlehnenstangen an dem Sitzrahmen vorzusehen. Somit ergeben sich erfindungsgemäß eine Vielzahl von unterschiedlichsten Ausgestaltungsvarianten.According to the invention, a wheel cover or armrest can be attached laterally to the chassis frame. The same applies to push rods or anti-tilt devices. Alternatively, it is also possible to provide push rods or backrest bars on the seat frame. Thus, the invention results in a variety of different design variants.

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

Fig. 1
eine perspektivische Darstellung eines erfindungsgemäßen Rollstuhls unter Verwendung des erfindungsgemäßen Faltrollstuhlrahmens,
Fig. 2
eine perspektivische Darstellung, analog Fig. 1, ohne Sitz,
Fig. 3
eine perspektivische Darstellung in rückwärtiger Ansicht analog Fig. 2, und
Fig. 4
eine Seitenansicht des in den Fig. 2 und 3 gezeigten Faltrollstuhlrahmens.
In the following the invention will be described by means of an embodiment in conjunction with the drawing. Showing:
Fig. 1
a perspective view of a wheelchair according to the invention using the Falrollstuhlrahmens invention,
Fig. 2
a perspective view, analog Fig. 1 , without seat,
Fig. 3
a perspective view in reverse view analog Fig. 2 , and
Fig. 4
a side view of the in the Fig. 2 and 3 shown Faltrollstuhlrahmens.

Der erfindungsgemäße Rollstuhl umfasst zwei vordere Lenkräder 1 sowie zwei Hinterräder 2. Die Lenkräder 1 und Hinterräder 2 sind jeweils an einem seitlichen Fahrwerksrahmen 3 angebracht. Hierzu ist der Fahrwerksrahmen 3, wie insbesondere aus Fig. 4 ersichtlich ist, gebogen und gekröpft. Er besteht aus einem einzigen Rohr, in dessen vertikales unteres freies Ende ein im Einzelnen nicht gezeigtes Lager für das Lenkrad 1 eingebracht ist. Zur Lagerung des Hinterrades dient ein verstellbares Lager 14, welches horizontal verschiebbar ist, um den Achsabstand einstellen zu können (siehe beispielsweise Fig. 2).The wheelchair according to the invention comprises two front steering wheels 1 and two rear wheels 2. The steering wheels 1 and rear wheels 2 are each attached to a lateral chassis frame 3. For this purpose, the chassis frame 3, as in particular from Fig. 4 can be seen, bent and cranked. It consists of a single tube, in the vertical lower free end of a not shown in detail bearings for the steering wheel 1 is introduced. For storage of the rear wheel is an adjustable bearing 14, which is horizontally displaceable in order to adjust the center distance can (see, for example Fig. 2 ).

Der Sitzrahmen wird erfindungsgemäß durch zwei zueinander parallele Seitenrahmen 4 gebildet, welche innerhalb der beiden Fahrwerksrahmen 3 angeordnet und mittels Lagerelementen 7 befestigt sind. Die Befestigung ist lösbar. Die Figuren zeigen eine Vielzahl von Bohrungen oder Ausnehmungen, um eine variable Einstellung zu ermöglichen. Das Lagerelement 7 ist schwenkbar ausgebildet, um eine Neigung oder Kantelung des Sitzrahmens und der hiermit zusammenhängenden Seitenrahmen 4 relativ zu den beiden Fahrwerksrahmen 3 zu realisieren.The seat frame according to the invention is formed by two mutually parallel side frame 4, which are arranged within the two chassis frame 3 and fixed by means of bearing elements 7. The attachment is detachable. The figures show a variety of holes or recesses to allow for variable adjustment. The bearing element 7 is pivotally adapted to realize a tilt or tilt of the seat frame and the related side frame 4 relative to the two chassis frame 3.

Die beiden Seitenrahmen 4 werden jeweils durch eine untere Strebe 9, eine vordere Strebe 10 sowie eine hintere Strebe 11 gebildet. An der vorderen Strebe 10 ist ein Scherenlager 12 höhenverstellbar gelagert, an welchem eine Schere 5 gelagert ist, welche mit einer oberen Sitzstrebe 8 verbunden ist. Die Sitzstrebe 8 sitzt im gebrauchsfertigen Zustand (siehe beispielsweise Fig. 2) in nicht einzeln bezeichneten Scherenlagern, welche eine Schnappverbindung oder ähnliches bilden und zugleich mit einem Kniehebel für die sichere Positionierung der Schere 5 im geöffneten, gebrauchsfertigen Zustand sorgen.The two side frames 4 are each formed by a lower strut 9, a front strut 10 and a rear strut 11. At the front strut 10, a scissor bearing 12 is mounted vertically adjustable, on which a pair of scissors 5 is mounted, which is connected to an upper seat stay 8. The seat stay 8 is in the ready state (see, for example Fig. 2 ) in not individually designated scissor bearings, which form a snap connection or the like and at the same time provide a toggle for the secure positioning of the scissors 5 in the opened, ready-to-use state.

Auf den beiden Sitzstreben 8 ist in üblicher Weise ein Sitz 6 gelagert. Obere Verlängerungen der hinteren Streben 11 lagern eine faltbare Rückenlehne 15 sowie Schiebestangen 16. Der Rollstuhl umfasst weiterhin Radabdeckungen 17, welche verstellbar beispielsweise an der hinteren Strebe 11 sowie dem Fahrwerksrahmen 3 angeordnet sein können.On the two seat stays 8 a seat 6 is mounted in the usual manner. Upper extensions of the rear struts 11 store a foldable backrest 15 and push rods 16. The wheelchair further comprises wheel covers 17 which can be adjustably arranged, for example on the rear strut 11 and the chassis frame 3.

Die Erfindung ist nicht auf das gezeigte Ausführungsbeispiel beschränkt, vielmehr ergeben sich im Rahmen der Erfindung vielfältige Abwandlungs- und Modifikationsmöglichkeiten, insbesondere hinsichtlich der Ausgestaltung und Dimensionierung sowohl des Fahrwerksrahmens 3 als auch des Seitenrahmens 4 sowie der hierdurch und durch diese gewährleisteten Verstellmöglichkeiten.The invention is not limited to the embodiment shown, but rather arise within the scope of the invention diverse Abwandlungs- and modification options, in particular with regard to the design and dimensioning of both the chassis frame 3 and the side frame 4 and thereby and by this guaranteed adjustment.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Lenkradsteering wheel
22
Hinterradrear wheel
33
Fahrwerksrahmenchassis frame
44
Seitenrahmenside frame
55
Scherescissors
66
SitzSeat
77
Lagerelementbearing element
88th
Sitzstrebeseat stay
99
Untere StrebeLower strut
1010
Vordere StrebeFront strut
1111
Hintere StrebeRear strut
1212
Scherenlagerstay bearing
1313
Fußbrettfootboard
1414
Lagercamp
1515
Rückenlehnebackrest
1616
Schiebestangepush bar
1717
Radabdeckungwheel cover

Claims (6)

  1. Folding wheelchair frame, comprising on each side a lateral chassis frame (3) holding a front castor wheel (1) and a rear wheel (2), and comprising a folding seat frame, which is releasably connected to the two chassis frame (3) and which comprises a side frame (4) on each side, these side frames being connected via a scissor-type flat stay (5) and supporting a seat (6), characterised in that the side frame (4) comprises a lower strut (9), a front strut (10) and a rear strut (11).
  2. Folding wheelchair frame according to claim 1, characterised in that the side frame (4) is mounted on the inside of the chassis frame (3).
  3. Folding wheelchair frame according to either claim 1 or claim 2, characterised in that the side frame (4) is mounted so as to be height-adjustable by means of at least one bearing member (7).
  4. Folding wheelchair frame according to any one of claims 1 to 3, characterised in that the side frame (4) is mounted so as to be pivotable by means of at least one bearing member (7).
  5. Folding wheelchair according to claim 1, characterised in that a scissor-type flat stay bearing (12) is mounted on the front strut (10) in such a way as to be height-adjustable.
  6. Folding wheelchair according to any one of claims 1 to 5, characterised in that a footplate (13) is mounted on the seat frame.
EP06016728A 2005-10-10 2006-08-10 Wheelchair frame Not-in-force EP1772129B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005048373A DE102005048373A1 (en) 2005-10-10 2005-10-10 Faltrollstuhlrahmen

Publications (3)

Publication Number Publication Date
EP1772129A2 EP1772129A2 (en) 2007-04-11
EP1772129A3 EP1772129A3 (en) 2007-08-08
EP1772129B1 true EP1772129B1 (en) 2010-06-09

Family

ID=37607240

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06016728A Not-in-force EP1772129B1 (en) 2005-10-10 2006-08-10 Wheelchair frame

Country Status (3)

Country Link
EP (1) EP1772129B1 (en)
AT (1) ATE470417T1 (en)
DE (2) DE102005048373A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202012103860U1 (en) * 2012-10-09 2013-10-10 Hans-Georg Pieper Griffer increase for a wheelchair
JP2018175552A (en) * 2017-04-17 2018-11-15 三貴ホールディングス株式会社 Wheelchair

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4082348A (en) * 1976-03-01 1978-04-04 Invacare Corporation Adjustable wheel chair
US4989890A (en) * 1986-09-30 1991-02-05 Invacare Corporation Length and width adjustable wheelchair
US5904398A (en) * 1997-10-23 1999-05-18 Farricielli; Susan Ergonomically designed seat assembly for a portable wheelchair
DE10233588A1 (en) * 2002-07-24 2004-02-12 Sunrise Medical Gmbh wheelchair

Also Published As

Publication number Publication date
EP1772129A3 (en) 2007-08-08
EP1772129A2 (en) 2007-04-11
DE502006007154D1 (en) 2010-07-22
ATE470417T1 (en) 2010-06-15
DE102005048373A1 (en) 2007-04-19

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