EP1849447A1 - Wheelchair - Google Patents

Wheelchair Download PDF

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Publication number
EP1849447A1
EP1849447A1 EP07007748A EP07007748A EP1849447A1 EP 1849447 A1 EP1849447 A1 EP 1849447A1 EP 07007748 A EP07007748 A EP 07007748A EP 07007748 A EP07007748 A EP 07007748A EP 1849447 A1 EP1849447 A1 EP 1849447A1
Authority
EP
European Patent Office
Prior art keywords
frame
fitting
clamp
lintel
wheelchair
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP07007748A
Other languages
German (de)
French (fr)
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EP1849447B1 (en
Inventor
Ralf Huber
Stefan Schillo
Joachim Eiser
Alexander Müller
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.)
Otto Bock Healthcare GmbH
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Otto Bock Healthcare GmbH
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Publication date
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Priority to PL07007748T priority Critical patent/PL1849447T3/en
Publication of EP1849447A1 publication Critical patent/EP1849447A1/en
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Publication of EP1849447B1 publication Critical patent/EP1849447B1/en
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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
    • 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
    • A61G5/1097—Camber- or toe-adjusting means for the drive wheels

Definitions

  • the invention relates to a wheelchair with a frame, a arranged within the frame seat, two mounted on each axis in a respective fitting drive wheels, each fitting is mounted in at least one lintel whose thickness changes over its circumference, and each fitting detachably attached to the frame, and with at least one steerable front wheel.
  • the frame of a wheelchair consists essentially of two lateral frame parts, which are bent from a tube and connected by cross braces.
  • a fitting is ever used, in which a rear wheel (drive wheel) can be used with its axis and screwed there.
  • the wheel axles In order to improve the maneuverability and the wheelchair's ability to turn, the wheel axles must not be horizontal (0 degree camber), but must be at an angle so that the wheels are inclined to the vertical and take a positive camber.
  • the fitting is inserted obliquely by means of the lintel with the angle predetermining the camber angle in the lateral frame part.
  • the seat tilt In order to adapt the wheelchair to the individual needs of its user, among other things, the seat tilt must be able to be changed.
  • the seat In the wheelchair described above, the seat is rigidly connected to the side frame members and the cross members, so that a tilt adjustment can only take place in that the entire frame is tilted, which by the use of wheels with a larger or smaller diameter or by attaching the Wheels are done in accordance with different height on the frame. If rear wheels are used with a smaller diameter, the frame tilts backward according to the reduced diameter and the seat tilts accordingly.
  • the DE 296 05 439 U1 discloses a wheelchair with a chassis frame having two lateral frame members, each having an upper and a lower frame profile, to each of which a perforated plate for fixed, but releasable anchoring of a received in the wheel hub of the drive wheel and this bearing wheel axle is attached.
  • a wheelchair whose frame has a bearing block having a plurality of bearing bores for selectively disposing the wheels in different horizontal and / or vertical planes.
  • the initially described wheelchair should be improved so that the track of the rear wheels is adjustable.
  • a generic wheelchair is characterized in that the at least one lintel is rotatable over a predetermined area relative to the frame.
  • the fitting is received with the particular preferably two lintel plates in a clamp pivotable relative to the frame.
  • the clamp is bent in a U-shape and is wrapped around a frame part.
  • the clamp is provided on both sides of the frame with two recesses into which corresponding lugs of each disc engage. Due to the different thickness of the discs of the design predetermined camber angle is realized. By a pivoting movement of the clamp then the lintel, or the inclined fitting are twisted, whereby the fore or after track is counteracted.
  • the fitting is preferably clamped with the clamp and the discs via two threaded nuts.
  • the clamp is provided with a circular arc-shaped recess whose end walls serve as stops for the clamp in order to limit the pivoting range of the clamp.
  • the pivoting range of the clamp is preferably 15 °.
  • the clamp is flattened at least on one outer side. On this flattening a spirit level can be placed. Then the clamp is twisted. If exactly the horizontal is set, the toe is 0.
  • the wheelchair consists essentially of the frame 8, which is formed of two lateral frame parts 7, 7 ', which are interconnected via cross members, not shown here, the seat 5 and the footrests 6 wear and the drive wheels 1, 2 and the two steerable Take front wheels 3, 4.
  • the frame parts 7, 7 ' are formed identically and consist of a U-shaped bent tube whose free legs are bolted to a connecting strut 9.
  • the upwardly projecting handles 10 are used, over which the wheelchair can be pushed by an assistant.
  • the legs of the frame parts 7, 7 ' are connected to a plurality of superimposed through holes 12 having struts 11.
  • the through holes 12 are two with each other opposite, beyond the peripheral contour reaching out wells 21 provided.
  • the recesses 21 can cooperate with the latching lugs 16 of the lintel plates 15, 15 a, so that the positioning of the lintel plates 15, 15 a relative to the frame 7 is structurally determined.
  • the rear wheels 1, 2 are rotatably mounted with their axes in a respective through a through hole 12 of the strut 11 passed through fitting 13.
  • the fitting 13 is inserted correspondingly obliquely.
  • the lintel plates 15, 15a which, as Figure 7 can be removed, have no constant thickness over its circumference.
  • the fittings 13 are provided with an external thread, so that from both ends of (not shown) nuts can be screwed and the fitting against the strut 11 can be clamped.
  • the constructionally predetermined camber angle is based on the non-inclined seating position, ie the horizontal arrangement of the frame, as shown in Figure 3.
  • four vertically stacked through holes 12 are provided in the strut 11.
  • the frame 8 tilts towards the rear, causing the seat 5 mitneigt accordingly.
  • Figure 5 shows a greatly exaggerated angular position of the frame part 7.
  • the inclination can be additionally determined by the fact that the wheel diameter is changed.
  • the fittings 13 pivot on a trajectory in space. From the previously set with, for example, 2.5 ° camber, as shown in Figure 1, the toe V 1 .
  • the clamp 14 is provided. This consists of a U-shaped bent sheet metal with the opposing holes 19 and the two provided in each free leg arcuate recesses 18.
  • the holes 19 are provided with two opposite, projecting beyond the circumference recesses 17, which are analogous to the wells 21 and interact with the lugs 15, 15a of the lintels.
  • At least the top of the clamp 14 is provided with a flat 22.
  • the flattening 22 runs parallel to the imaginary line connecting the centers of the recesses 17 with each other.
  • the clamp 14 is placed around the strut 11 and the fittings 13, as described above, inserted.
  • the lintels 15, 15 a are placed on the clamp 14 and the fittings 13 are then screwed.
  • the screw 20 which cooperates with the recesses 18 and is screwed into the strut 11, the clamp 14 is secured against rotation.
  • the screw 20 serves together with the end walls of the recess 18 as a stop for the clamp 14th
  • the clamp 14 is pivoted together with the lintel 15, 15 a, which occupy a fixed position on their lugs 16 to the clamp 14 in the opposite direction and thus the position of the fitting 13 again in the constructive, the camber determining position pivoted back so that the toe V 1 disappears and the 0-track V 0 is.
  • the flattening 22 of the clamp 14 serves to simplify the adjustability.
  • the design predetermined fall is set when the flattening 22 is absolutely horizontal, ie parallel to the tire contact surface S (sheet level in Fig. 1 and 2). For this purpose, a spirit level is placed on the flattening 22. If the horizontal position is reached, the clamp 14 is clamped on the nuts on the fitting 13 and the constructive predetermined camber is also adjusted by inclination of the frame 7, 7 'then.
  • the pivoting of the clamp in an angular range of 15 ° is sufficient to give the design even with strong inclination of the seat reaching, even with strong inclination of the seat to comply with the design prescribed fall of 8 °.

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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)
  • Handcart (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Prostheses (AREA)

Abstract

The wheelchair has a seat (5) arranged inside a frame (7, 7`, 8), and two drive wheels (1, 2) supported about an axis in a fitting (13). The fitting is supported in two camber washers, where the fitting is fastened removably at the frame. One of the two camber washers is tiltable around a predetermined range opposite the frame. The fitting is received in a clamp that is pivotable opposite the frame.

Description

Die Erfindung betrifft einen Rollstuhl mit einem Rahmen, einem innerhalb des Rahmens angeordneten Sitz, zwei über je eine Achse in je einem Fitting gelagerten Antriebsrädern, wobei jeder Fitting in mindestens einer Sturzscheibe gelagert ist, deren Dicke sich über ihren Umfang ändert, und jeder Fitting lösbar am Rahmen befestigt ist, und mit mindestens einem lenkbaren Vorderrad.The invention relates to a wheelchair with a frame, a arranged within the frame seat, two mounted on each axis in a respective fitting drive wheels, each fitting is mounted in at least one lintel whose thickness changes over its circumference, and each fitting detachably attached to the frame, and with at least one steerable front wheel.

Der Rahmen eines Rollstuhls besteht im Wesentlichen aus zwei seitlichen Rahmenteilen, die aus einem Rohr gebogen sind und über Querstreben miteinander verbunden werden. In den seitlichen Rahmenteilen ist je ein Fitting eingesetzt, in den ein Hinterrad (Antriebsrad) mit seiner Achse eingesetzt und dort verschraubt werden kann. Um die Manövrierfähigkeit und die Drehfähigkeit des Rollstuhles zu verbessern, dürfen die Radachsen nicht horizontal (0-Grad-Radsturz), sondern sie müssen in einem Winkel angeordnet sein, so dass die Räder gegenüber der Lotrechten geneigt sind und einen positiven Radsturz einnehmen. Hierzu ist der Fitting mittels der Sturzscheiben schräg mit dem den Radsturzwinkel vorgebenden Winkel in das seitliche Rahmenteil eingesetzt.The frame of a wheelchair consists essentially of two lateral frame parts, which are bent from a tube and connected by cross braces. In the lateral frame parts a fitting is ever used, in which a rear wheel (drive wheel) can be used with its axis and screwed there. In order to improve the maneuverability and the wheelchair's ability to turn, the wheel axles must not be horizontal (0 degree camber), but must be at an angle so that the wheels are inclined to the vertical and take a positive camber. For this purpose, the fitting is inserted obliquely by means of the lintel with the angle predetermining the camber angle in the lateral frame part.

Um den Rollstuhl den individuellen Bedürfnissen seines Benutzers anpassen zu können, muss unter anderem die Sitzneigung verändert werden können. Bei dem vorstehend beschriebenen Rollstuhl ist der Sitz starr mit den seitlichen Rahmenteilen und den Querträgern verbunden, so dass eine Neigungsverstellung nur dadurch erfolgen kann, dass der gesamte Rahmen gekippt wird, was durch die Verwendung von Rädern mit einem größeren oder kleineren Durchmesser oder durch Befestigung der Räder in entsprechend anderer Höhe am Rahmen erfolgt. Werden Hinterräder mit einem kleineren Durchmesser eingesetzt, kippt der Rahmen entsprechend dem verkleinerten Durchmesser nach hinten und der Sitz neigt sich entsprechend.In order to adapt the wheelchair to the individual needs of its user, among other things, the seat tilt must be able to be changed. In the wheelchair described above, the seat is rigidly connected to the side frame members and the cross members, so that a tilt adjustment can only take place in that the entire frame is tilted, which by the use of wheels with a larger or smaller diameter or by attaching the Wheels are done in accordance with different height on the frame. If rear wheels are used with a smaller diameter, the frame tilts backward according to the reduced diameter and the seat tilts accordingly.

Durch die Kippbewegung des Rahmens verändert sich die Lage der Längsachse des Fittings bzw. die Lage der Radachsen und der eingestellte Radsturz führt zur Veränderung der Spur. Der Abstand zwischen den Hinterrädern ist also vor der Achse grö-ßer oder kleiner als dahinter. Mit der Veränderung der Spur verändert sich das Fahrverhalten des Rollstuhles. Flatterneigung und erhöhter Reifenverschleiß sind die Folge.Due to the tilting movement of the frame, the position of the longitudinal axis of the fitting or the position of the wheel axles changes and the set camber changes the track. The distance between the rear wheels is thus greater or smaller in front of the axle than behind. With the change of the track, the driving behavior of the wheelchair changes. Fluttering and increased tire wear are the result.

Aus der DE 37 42 547 A1 ist ein Sportrollstuhl bekannt, an dessen seitlichem Rahmen nach außen vorstehend angeordnete Lochplatten zur Aufnahme der Achsen der Hinterräder vorgesehen sind, bei dem die Lochplatten an einem gesonderten Rahmen mindestens um eine Achse schwenkbar gelagert sind.From the DE 37 42 547 A1 a sports wheelchair is known, on the lateral frame outwardly projecting perforated plates are provided for receiving the axles of the rear wheels, in which the perforated plates are mounted on a separate frame at least about an axis pivotally.

Die DE 296 05 439 U1 offenbart einen Rollstuhl mit einem Fahrwerksrahmen, der zwei seitliche Rahmenteile mit je einem oberen und einem unteren Rahmenprofil aufweist, an denen jeweils eine Lochplatte zur festen, aber lösbaren Verankerung einer in der Radnabe des Antriebsrades aufgenommenen und dieses lagernde Radachse befestigt ist.The DE 296 05 439 U1 discloses a wheelchair with a chassis frame having two lateral frame members, each having an upper and a lower frame profile, to each of which a perforated plate for fixed, but releasable anchoring of a received in the wheel hub of the drive wheel and this bearing wheel axle is attached.

Aus der GB 2 128 143 A ist ein Rollstuhl bekannt, dessen Rahmen einen Lagerblock aufweist, der eine Mehrzahl von Lagerbohrungen besitzt, um die Räder wahlweise in verschiedenen horizontalen und/oder vertikalen Ebenen anzuordnen.From the GB 2 128 143 A For example, a wheelchair is known whose frame has a bearing block having a plurality of bearing bores for selectively disposing the wheels in different horizontal and / or vertical planes.

Von dieser Problemstellung ausgehend, soll der eingangs erläuterte Rollstuhl so verbessert werden, dass die Spur der Hinterräder einstellbar ist.Based on this problem, the initially described wheelchair should be improved so that the track of the rear wheels is adjustable.

Zur Problemlösung zeichnet sich ein gattungsgemäßer Rollstuhl dadurch aus, dass die mindestens eine Sturzscheibe über einen vorgegebenen Bereich gegenüber dem Rahmen verdrehbar ist.To solve the problem, a generic wheelchair is characterized in that the at least one lintel is rotatable over a predetermined area relative to the frame.

Durch diese Ausgestaltung kann, wenn sich die Lage der Längsachse des Fittings im Rahmen verändert, weil Hinterräder mit einem anderen Durchmesser als konstruktiv vorgegeben oder in einer anderen Höhe am Rahmen befestigt werden, diese Lageänderung durch eine entsprechende Verdrehung kompensiert werden.As a result of this embodiment, if the position of the longitudinal axis of the fitting in the frame changes because rear wheels with a different diameter are predetermined as constructive or fastened to the frame at a different height, this change in position can be compensated for by a corresponding rotation.

Hierzu ist der Fitting mit den insbesondere vorzugsweise zwei Sturzscheiben in einer gegenüber dem Rahmen verschwenkbaren Schelle aufgenommen. Die Schelle ist u-förmig gebogen und wird um ein Rahmenteil herumgelegt.For this purpose, the fitting is received with the particular preferably two lintel plates in a clamp pivotable relative to the frame. The clamp is bent in a U-shape and is wrapped around a frame part.

Insbesondere vorzugsweise ist die Schelle beidseitig zum Rahmen mit zwei Ausnehmungen versehen, in die hierzu korrespondierende Nasen jeder Scheibe eingreifen. Durch die unterschiedliche Dicke der Scheiben wird der konstruktiv vorgegebene Sturzwinkel verwirklicht. Durch eine Schwenkbewegung der Schelle werden dann die Sturzscheiben, bzw. der schräg gestellte Fitting verdreht, wodurch der Vor- oder Nachspur entgegengewirkt wird.In particular, preferably, the clamp is provided on both sides of the frame with two recesses into which corresponding lugs of each disc engage. Due to the different thickness of the discs of the design predetermined camber angle is realized. By a pivoting movement of the clamp then the lintel, or the inclined fitting are twisted, whereby the fore or after track is counteracted.

Hierzu ist der Fitting vorzugsweise mit der Schelle und den Scheiben über zwei Gewindemuttern verspannbar. Die Schelle ist mit einer kreisbogenförmigen Ausnehmung versehen, deren Endwandungen als Anschläge für die Schelle dienen, um den Schwenkbereich der Schelle zu begrenzen.For this purpose, the fitting is preferably clamped with the clamp and the discs via two threaded nuts. The clamp is provided with a circular arc-shaped recess whose end walls serve as stops for the clamp in order to limit the pivoting range of the clamp.

Der Schwenkbereich der Schelle beträgt vorzugsweise 15°.The pivoting range of the clamp is preferably 15 °.

Um die Einstellbarkeit zu erleichtern, ist die Schelle zumindest an einer Außenseite abgeflacht. Auf diese Abflachung kann eine Wasserwaage aufgelegt werden. Dann wird die Schelle verdreht. Ist exakt die Horizontale eingestellt, beträgt die Vorspur 0.In order to facilitate the adjustability, the clamp is flattened at least on one outer side. On this flattening a spirit level can be placed. Then the clamp is twisted. If exactly the horizontal is set, the toe is 0.

Mit Hilfe einer Zeichnung soll ein Ausführungsbeispiel der Erfindung nachfolgend näher beschrieben werden. Es zeigt:

Figur 1
die Draufsicht auf den Rollstuhl mit Vorspur der Hinterräder;
Figur 2
die Draufsicht gemäß Figur 1 mit korrigierter Spur der Hinterräder;
Figur 3
die Seitenansicht eines seitlichen Rahmenteils;
Figur 4
die Ansicht des Rahmenteils gemäß Sichtpfeil IV nach Figur 3;
Figur 5
das Rahmenteil nach Figur 3 in gekippter Stellung;
Figur 6
die Ansicht des Rahmenteils nach Figur 5 gemäß Sichtpfeil VI;
Figur 7
eine perspektivische Explosionsdarstellung eines Teils des Rahmens;
Figur 8
die Ansicht der Schelle;
Figur 9
die Draufsicht der Schelle;
Figur 10
die perspektivische Darstellung der Schelle.
With the aid of a drawing, an embodiment of the invention will be described in more detail below. It shows:
FIG. 1
the top view of the wheelchair with toe of the rear wheels;
FIG. 2
the top view of Figure 1 with corrected track of the rear wheels;
FIG. 3
the side view of a lateral frame part;
FIG. 4
the view of the frame part according to visual arrow IV of Figure 3;
FIG. 5
the frame part of Figure 3 in a tilted position;
FIG. 6
the view of the frame part of Figure 5 according to visual arrow VI;
FIG. 7
an exploded perspective view of a part of the frame;
FIG. 8
the view of the clamp;
FIG. 9
the top view of the clamp;
FIG. 10
the perspective view of the clamp.

Der Rollstuhl besteht im Wesentlichen aus dem Rahmen 8, der aus zwei seitlichen Rahmenteilen 7, 7' gebildet wird, die über hier nicht gezeigte Querträger miteinander verbunden sind, den Sitz 5 und die Fußstützen 6 tragen sowie die Antriebsräder 1, 2 und die beiden lenkbaren Vorderräder 3, 4 aufnehmen. Die Rahmenteile 7, 7' sind identisch ausgebildet und bestehen aus einem u-förmig gebogenen Rohr, dessen freie Schenkel mit einer Verbindungsstrebe 9 verschraubt sind. In der Verbindungsstrebe 9 sind die nach oben ragenden Handgriffe 10 eingesetzt, über die der Rollstuhl von einer Hilfsperson geschoben werden kann. Die Schenkel der Rahmenteile 7, 7' sind mit einer mehrere übereinander angeordnete Durchgangsbohrungen 12 aufweisende Streben 11 verbunden. Die Durchgangsbohrungen 12 sind mit zwei sich gegenüberliegenden, über die Umfangskontur hinausreichenden Vertiefungen 21 versehen. Die Vertiefungen 21 können mit den Rastnasen 16 der Sturzscheiben 15, 15a zusammenwirken, so dass die Positionierung der Sturzscheiben 15, 15a gegenüber dem Rahmen 7 konstruktiv festgelegt ist. Die Hinterräder 1, 2 sind mit ihren Achsen in je einem durch eine Durchgangsbohrung 12 der Strebe 11 hindurchgeführten Fitting 13 drehbar gelagert. Um die Neigung der Achse der Hinterräder 1, 2 gegenüber der Radaufstandsfläche S und damit den Sturz vorzugeben, ist der Fitting 13 entsprechend schräg eingesetzt. Hierzu dienen die Sturzscheiben 15, 15a, die, wie Figur 7 entnehmbar ist, über ihren Umfang keine konstante Dicke aufweisen.The wheelchair consists essentially of the frame 8, which is formed of two lateral frame parts 7, 7 ', which are interconnected via cross members, not shown here, the seat 5 and the footrests 6 wear and the drive wheels 1, 2 and the two steerable Take front wheels 3, 4. The frame parts 7, 7 'are formed identically and consist of a U-shaped bent tube whose free legs are bolted to a connecting strut 9. In the connecting strut 9, the upwardly projecting handles 10 are used, over which the wheelchair can be pushed by an assistant. The legs of the frame parts 7, 7 'are connected to a plurality of superimposed through holes 12 having struts 11. The through holes 12 are two with each other opposite, beyond the peripheral contour reaching out wells 21 provided. The recesses 21 can cooperate with the latching lugs 16 of the lintel plates 15, 15 a, so that the positioning of the lintel plates 15, 15 a relative to the frame 7 is structurally determined. The rear wheels 1, 2 are rotatably mounted with their axes in a respective through a through hole 12 of the strut 11 passed through fitting 13. In order to predetermine the inclination of the axis of the rear wheels 1, 2 relative to the wheel contact surface S and thus the fall, the fitting 13 is inserted correspondingly obliquely. Serve for this purpose, the lintel plates 15, 15a, which, as Figure 7 can be removed, have no constant thickness over its circumference.

Die Fittinge 13 sind mit einem Außengewinde versehen, so dass von beiden Enden aus (nicht dargestellte) Muttern aufgeschraubt werden können und der Fitting gegenüber der Strebe 11 verspannt werden kann. Dadurch, dass die Sturzscheiben 15, 15a keine konstante Dicke aufweisen und die Verschraubung des Fittings gegen die Sturzscheiben 15, 15a erfolgt, sitzt der Fitting 13 entsprechend dem Dickenunterschied schräg in der Strebe 11. Die Nasen 16 der Sturzscheiben 15, 15a greifen in die sich gegenüberliegenden Vertiefungen 21 in der Strebe 11 ein, so dass die Anordnung der Sturzscheiben 15, 15a konstruktiv vorgegeben ist und die Montage vereinfacht wird.The fittings 13 are provided with an external thread, so that from both ends of (not shown) nuts can be screwed and the fitting against the strut 11 can be clamped. The fact that the lintel 15, 15a have no constant thickness and the fitting of the fitting against the lintel 15, 15a, the fitting sits 13 according to the thickness difference obliquely in the strut 11. The lugs 16 of the lintel 15, 15a engage in the opposite recesses 21 in the strut 11, so that the arrangement of the lintel plates 15, 15a is structurally predetermined and the assembly is simplified.

Der konstruktiv vorgegebene Sturzwinkel ist bezogen auf die nicht geneigte Sitzstellung, also die horizontale Anordnung des Rahmens, so wie in Figur 3 dargestellt. Um die Sitzneigung den Bedürfnissen des Benutzers anpassen zu können, sind in der Strebe 11 vier vertikal übereinander angeordnete Durchgangsbohrungen 12 vorgesehen. In Abhängigkeit davon, in welche der Bohrungen 12 der Fitting gesteckt wird, neigt sich der Rahmen 8 nach hinten, wodurch sich der Sitz 5 entsprechend mitneigt. Figur 5 zeigt eine stark übertriebene Winkelstellung des Rahmenteils 7. Die Neigung kann zusätzlich dadurch bestimmt werden, dass der Raddurchmesser verändert wird.The constructionally predetermined camber angle is based on the non-inclined seating position, ie the horizontal arrangement of the frame, as shown in Figure 3. To be able to adapt the seat inclination to the needs of the user, four vertically stacked through holes 12 are provided in the strut 11. Depending on in which of the holes 12 of the fitting is inserted, the frame 8 tilts towards the rear, causing the seat 5 mitneigt accordingly. Figure 5 shows a greatly exaggerated angular position of the frame part 7. The inclination can be additionally determined by the fact that the wheel diameter is changed.

Schwenken die Rahmenteile 7, 7' nach hinten, schwenken die Fittinge 13 auf einer Bahnkurve im Raum. Aus dem zuvor mit beispielsweise 2,5° eingestellten Sturz wird, wie Figur 1 zeigt, die Vorspur V1. Der Winkel α, der sich durch "Klappen" des Rahmens 7 aus Figur 5 in Figur 6 einzeichnen lässt, wird größer als 90°. Liegt der Rahmen 7, 7' horizontal, beträgt der Winkel 90° (vgl. Figuren 3 und 4).If the frame parts 7, 7 'pivot toward the rear, the fittings 13 pivot on a trajectory in space. From the previously set with, for example, 2.5 ° camber, as shown in Figure 1, the toe V 1 . The angle α, resulting from "flaps" of the frame 7 draws from Figure 5 in Figure 6, is greater than 90 °. If the frame 7, 7 'is horizontal, the angle is 90 ° (compare FIGS. 3 and 4).

Um die Spur korrigieren zu können und die Vorspur V1 zur konstruktiv vorgegebenen Spur V0 zu bringen, ist die Schelle 14 vorgesehen. Diese besteht aus einem u-förmig gebogenen Blech mit den sich gegenüberliegenden Löchern 19 und den beiden in jedem freien Schenkel vorgesehenen bogenförmigen Ausnehmungen 18. Die Löcher 19 sind mit zwei gegenüberliegenden, über den Umfang hinausragende Ausnehmungen 17 versehen, die zu den Vertiefungen 21 analog sind und mit den Nasen 15, 15a der Sturzscheiben zusammenwirken. Zumindest oben ist die Schelle 14 mit einer Abflachung 22 versehen. Die Abflachung 22 verläuft parallel zu der gedachten Linie, die die Mittelpunkte der Ausnehmungen 17 miteinander verbindet.In order to correct the track and to bring the toe V 1 to the structurally predetermined track V 0 , the clamp 14 is provided. This consists of a U-shaped bent sheet metal with the opposing holes 19 and the two provided in each free leg arcuate recesses 18. The holes 19 are provided with two opposite, projecting beyond the circumference recesses 17, which are analogous to the wells 21 and interact with the lugs 15, 15a of the lintels. At least the top of the clamp 14 is provided with a flat 22. The flattening 22 runs parallel to the imaginary line connecting the centers of the recesses 17 with each other.

Die Schelle 14 wird um die Strebe 11 gelegt und die Fittinge 13, wie zuvor beschrieben, eingesteckt. Die Sturzscheiben 15, 15a werden auf die Schelle 14 aufgelegt und die Fittinge 13 dann verschraubt. Über die Schraube 20, die mit den Ausnehmungen 18 zusammenwirkt und in die Strebe 11 eingeschraubt ist, wird die Schelle 14 gegen Verdrehen gesichert. Gleichzeitig dient die Schraube 20 zusammen mit den Endwandungen der Ausnehmung 18 als Anschlag für die Schelle 14.The clamp 14 is placed around the strut 11 and the fittings 13, as described above, inserted. The lintels 15, 15 a are placed on the clamp 14 and the fittings 13 are then screwed. About the screw 20, which cooperates with the recesses 18 and is screwed into the strut 11, the clamp 14 is secured against rotation. At the same time, the screw 20 serves together with the end walls of the recess 18 as a stop for the clamp 14th

Wird der Rahmen 8 nun gekippt, wird die Schelle 14 zusammen mit den Sturzscheiben 15, 15a, die über ihre Nasen 16 zur Schelle 14 eine feste Position einnehmen, in die entgegen gesetzte Richtung verschwenkt und die Lage des Fittings 13 somit wieder in die konstruktiv, den Sturz bestimmende Lage zurückgeschwenkt, so dass die Vorspur V1 verschwindet und zur 0-Spur V0 wird.If the frame 8 is now tilted, the clamp 14 is pivoted together with the lintel 15, 15 a, which occupy a fixed position on their lugs 16 to the clamp 14 in the opposite direction and thus the position of the fitting 13 again in the constructive, the camber determining position pivoted back so that the toe V 1 disappears and the 0-track V 0 is.

Die Abflachung 22 der Schelle 14 dient der Vereinfachung der Einstellbarkeit. Der konstruktiv vorgegebene Sturz ist eingestellt, wenn die Abflachung 22 absolut waagerecht, also parallel zur Reifenaufstandsfläche S (Blattebene in Fig. 1 und 2) liegt. Hierzu wird auf die Abflachung 22 eine Wasserwaage aufgelegt. Ist die horizontale Lage erreicht, wird die Schelle 14 über die Muttern am Fitting 13 verspannt und der konstruktiv vorgegebene Sturz ist auch nach Neigung des Rahmens 7, 7' dann eingestellt. Die Verschwenkbarkeit der Schelle in einem Winkelbereich von 15° ist ausreichend, um auch bei starker Neigung des Sitzes den konstruktiv vorgegebenen reichend, um auch bei starker Neigung des Sitzes den konstruktiv vorgegebenen Sturz von 8° einhalten zu können.The flattening 22 of the clamp 14 serves to simplify the adjustability. The design predetermined fall is set when the flattening 22 is absolutely horizontal, ie parallel to the tire contact surface S (sheet level in Fig. 1 and 2). For this purpose, a spirit level is placed on the flattening 22. If the horizontal position is reached, the clamp 14 is clamped on the nuts on the fitting 13 and the constructive predetermined camber is also adjusted by inclination of the frame 7, 7 'then. The pivoting of the clamp in an angular range of 15 ° is sufficient to give the design even with strong inclination of the seat reaching, even with strong inclination of the seat to comply with the design prescribed fall of 8 °.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

11
Hinterradrear wheel
22
Hinterradrear wheel
33
Vorderradfront
44
Vorderradfront
55
SitzSeat
66
Fußstützefootrest
77
Rahmenteilframe part
7'7 '
Rahmenteilframe part
88th
Rahmenframe
99
Verbindungsstrebeconnecting strut
1010
Handgriffehandles
1111
Strebestrut
1212
DurchgangsbohrungThrough Hole
1313
Fittingfitting
1414
Schelleclamp
1515
Sturzscheibefall disc
15a15a
Sturzscheibefall disc
1616
Nasenose
1717
Ausnehmungrecess
1818
Ausnehmungrecess
1919
Lochhole
2020
Schraubescrew
2121
Vertiefungdeepening
2222
Abflachungflattening
αα
Winkelangle
V0 V 0
0-Spur0 Trail
V1 V 1
Vorspurtoe
SS
ReifenaufstandsflächeTire contact area

Claims (7)

Rollstuhl mit einem Rahmen (7, 7', 8), einem innerhalb des Rahmens (7, 7', 8) angeordneten Sitz (5), zwei über je eine Achse in je einem Fitting (13) gelagerten Antriebsrädern (1, 2), wobei jeder Fitting (13) in mindestens einer Sturzscheibe (15, 15a) gelagert ist, deren Dicke sich über ihren Umfang ändert, und jeder Fitting (13) lösbar am Rahmen (7, 7') befestigt ist, und mit mindestens einem lenkbaren Vorderrad (3, 4), dadurch gekennzeichnet, dass die mindestens eine Sturzscheibe (15, 15a) über einen vorgegebenen Bereich gegenüber dem Rahmen (7, 7') verdrehbar ist.Wheelchair having a frame (7, 7 ', 8), a seat (5) arranged within the frame (7, 7', 8), two drive wheels (1, 2) mounted on one axle each in a fitting (13) wherein each fitting (13) is mounted in at least one lintel (15, 15a) whose thickness varies over its circumference and each fitting (13) is releasably secured to the frame (7, 7 ') and at least one steerable one Front wheel (3, 4), characterized in that the at least one lintel (15, 15a) over a predetermined area relative to the frame (7, 7 ') is rotatable. Rollstuhl nach Anspruch 1, dadurch gekennzeichnet, dass jeder Fitting (13) in zwei Sturzscheiben (15, 15a) gelagert ist.Wheelchair according to claim 1, characterized in that each fitting (13) in two lintel plates (15, 15a) is mounted. Rollstuhl nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Fitting (13) in einer gegenüber dem Rahmen (7, 7') verschwenkbaren Schelle (14) aufgenommen ist.Wheelchair according to claim 1 or 2, characterized in that the fitting (13) is received in a relative to the frame (7, 7 ') pivotable clamp (14). Rollstuhl nach Anspruch 3, dadurch gekennzeichnet, dass die Schelle (14) mit ihre Löcher (19) verbreiternden Ausnehmungen (17) versehen ist, in die hierzu korrespondierende Nasen (16) in den Sturzscheiben (15, 15a) eingreifen.Wheelchair according to claim 3, characterized in that the clamp (14) with its holes (19) widening recesses (17) is provided, in the corresponding thereto lugs (16) in the lintel plates (15, 15a) engage. Rollstuhl nach Anspruch 4, dadurch gekennzeichnet, dass der Fitting (13) mit der Schelle (14) und den Sturzscheiben (15, 15a) über zwei Gewindemuttern am Rahmen (7, 7') verspannbar ist.Wheelchair according to claim 4, characterized in that the fitting (13) with the clamp (14) and the lintel discs (15, 15a) via two threaded nuts on the frame (7, 7 ') can be clamped. Rollstuhl nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, dass die Schelle (14) mit mindestens einer Abflachung (22) versehen ist.Wheelchair according to one of claims 3 to 5, characterized in that the clamp (14) is provided with at least one flattening (22). Rollstuhl nach einem oder mehreren der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die freien Schenkel der Schelle (14) mit einer kreisbogenförmigen Ausnehmung (18) versehen sind.Wheelchair according to one or more of claims 1 to 6, characterized in that the free legs of the clamp (14) are provided with a circular arc-shaped recess (18).
EP07007748A 2006-04-25 2007-04-17 Wheelchair Active EP1849447B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07007748T PL1849447T3 (en) 2006-04-25 2007-04-17 Wheelchair

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006019001A DE102006019001B3 (en) 2006-04-25 2006-04-25 Wheelchair e.g. sport wheelchair, has seat arranged inside frame, and two drive wheels supported about axis in fitting that is supported in two camber washers, where fitting is fastened removably at frame

Publications (2)

Publication Number Publication Date
EP1849447A1 true EP1849447A1 (en) 2007-10-31
EP1849447B1 EP1849447B1 (en) 2009-10-21

Family

ID=37853010

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07007748A Active EP1849447B1 (en) 2006-04-25 2007-04-17 Wheelchair

Country Status (7)

Country Link
US (1) US7635135B2 (en)
EP (1) EP1849447B1 (en)
CN (1) CN101099706B (en)
AT (1) ATE446070T1 (en)
DE (2) DE102006019001B3 (en)
NO (1) NO20072151L (en)
PL (1) PL1849447T3 (en)

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Publication number Priority date Publication date Assignee Title
US8042824B2 (en) * 2006-11-29 2011-10-25 Jaimie Borisoff Wheel mount assembly
DE102007043942B3 (en) * 2007-09-14 2008-09-25 Otto Bock Healthcare Ip Gmbh & Co. Kg Wheelchair has frames, which are provided for receiving seat, where side parts are connected in detachable manner on two sides of seat connected to frame
CN102028588A (en) * 2010-12-22 2011-04-27 常熟市平方轮椅有限公司 Manual wheelchair
EP3188917A1 (en) * 2014-09-05 2017-07-12 Jaguar Land Rover Limited Joint locator
US10751235B2 (en) * 2017-04-14 2020-08-25 Chad Robert Ernst Adjustable camber wheelchair devices, systems and methods

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EP1652503A2 (en) * 2004-11-02 2006-05-03 Sunrise Medical Limited Mounting arrangement for wheel of a wheelchair

Also Published As

Publication number Publication date
US7635135B2 (en) 2009-12-22
EP1849447B1 (en) 2009-10-21
US20070246907A1 (en) 2007-10-25
CN101099706A (en) 2008-01-09
DE502007001767D1 (en) 2009-12-03
PL1849447T3 (en) 2010-03-31
ATE446070T1 (en) 2009-11-15
CN101099706B (en) 2010-06-02
DE102006019001B3 (en) 2007-04-05
NO20072151L (en) 2007-10-26

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