EP0268960A2 - Wheel chair for the sick - Google Patents

Wheel chair for the sick Download PDF

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Publication number
EP0268960A2
EP0268960A2 EP87116832A EP87116832A EP0268960A2 EP 0268960 A2 EP0268960 A2 EP 0268960A2 EP 87116832 A EP87116832 A EP 87116832A EP 87116832 A EP87116832 A EP 87116832A EP 0268960 A2 EP0268960 A2 EP 0268960A2
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EP
European Patent Office
Prior art keywords
control head
head tube
inner control
axis
elevator according
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.)
Withdrawn
Application number
EP87116832A
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German (de)
French (fr)
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EP0268960A3 (en
Inventor
Wilhelm Meyer Gmbh Co Kg Meyra
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Meyra Wilhelm Meyer GmbH and Co KG
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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 EP0268960A2 publication Critical patent/EP0268960A2/en
Publication of EP0268960A3 publication Critical patent/EP0268960A3/en
Withdrawn legal-status Critical Current

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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

Definitions

  • the invention relates to a medical elevator (wheelchair) with a height-adjustable seat, the chassis of which is supported on two lateral rear wheels acting as drive wheels and on two lateral, smaller front wheels, each mounted in a wheel fork, the wheel forks being pivotable about towering axes.
  • Such an elevator known from DE-OS 32 27 365 can be driven by the handicapped by turning the large rear wheels with his hands.
  • the smaller front wheels act as steering wheels, they are arranged in the swiveling wheel forks and automatically adjust to the direction of travel desired by the disabled person by driving the two rear wheels evenly or differently.
  • each perforated plate having a plurality of insertion holes for the rear axles which are spaced apart in the direction of travel and in the vertical direction. This allows the desired height of the seat of the medical elevator to be set.
  • the invention is based on the object, the individual adaptability of the elevator to the possibilities of the disabled to increase, so that it, for example, regardless of the appropriate age in sports, games and leisure and also during normal driving, the most favorable height and inclination Seat can be adjusted or adjusted.
  • the medical elevator should therefore be suitable both in the sports sector and for those wheelchair users who still have low leg functions and can use them to drive them, for example by tripping. In this case, the driving and steering can take place at least partially with the legs.
  • the medical elevator should enable an individual choice of focus to optimize the rolling behavior with good tipping stability. Both the center of gravity height and the center of gravity distance from the pivot point must be changeable.
  • each wheel fork is arranged at the lower end of an inner control head tube, which is inserted in a height-adjustable manner in an outer control head tube fastened to the chassis, and in that the inner control head tube has at least one radial threaded bore and the outer one Control head tube is equipped with a plurality of radial through holes arranged one behind the other at intervals along the tube axis, through which a fastening device engaging in the inner control head tube is detachably inserted.
  • the height of the front support of the chassis can thus be adjusted or changed. This is associated with a change in the seat angle.
  • the use of a screw preferably enables the two tubes to be attached to one another in a particularly simple manner.
  • the screw can be inserted through a certain through hole of the outer control head tube in the radial direction and screwed into the threaded bore of the inner control head tube aligned with this through hole.
  • the fastening screw is removed and the threaded bore of the inner tube is brought into line with a higher through hole of the outer tube, in order to screw the fastening screw in again in this new position.
  • two threaded bores of the inner control head tube and the through holes of the outer control head tube are each arranged in pairs opposite one another along a common diameter. This results in an even more secure two-sided fastening of the two tubes to one another.
  • Each wheel fork is preferably attached to the lower end of a bearing axle which is rotatably mounted within the inner control head tube. This arrangement enables the front wheel to immediately adapt smoothly to the direction of travel imposed.
  • a hospital elevator according to the invention with a seat 10, a backrest 11 and two armrests 12 has a chassis with two identical lateral frames formed by tubular structures, a lower side rail 13 of a frame being connected to a front wheel 14 and a perforated plate 15 to a rear wheel 16 is.
  • the perforated plate 15 is provided with a plurality of insertion holes 17 which are spaced from one another in the direction of travel and in the vertical direction. They allow the insertion of a rear axle 18 of the Rear wheel 16 into a specific insertion hole 17 corresponding to the desired position.
  • Each front wheel 14 is mounted with a horizontal axis of rotation 19 in a wheel fork 20 which does not extend vertically from the axis of rotation 19, but extends upward at an acute angle. With its upper end, the wheel fork 20 is fastened to an upstanding bearing axis 21 which is rotatably mounted in an inner control head tube 22 which is detachably fastened to the chassis.
  • the arrangement of the front wheel 14 thus enables automatic adjustment to the desired direction of travel by rotating the bearing axis 21.
  • the upper end of the wheel fork 20 lies against a collar 23 of the bearing axis 21 and is fastened there by means of a nut 24 screwed onto the bearing axis 21. This collar 23 is located on the lower end face of the inner control head tube 22.
  • the inner control head tube 22 initially has an end bearing bore 25 for an axial bearing 26 of the bearing axis 21.
  • the bearing bore 25 is followed by a bearing bore 27 for a lower radial bearing 287 of the bearing axis 21, which bearing 28 can be a needle bearing.
  • a further bearing bore 29 for an upper radial bearing 30 of the bearing axis 21 is arranged in the inner control head tube 22.
  • the inner control head tube 22 is inserted from below into an outer control head tube 31 and fastened in a certain position with the aid of two fastening screws 32.
  • the inner control head tube 22 has the fastening screws 32 two threaded bores 33 arranged opposite one another on a pipe diameter. These are made to coincide with two corresponding through holes 34 in the outer control head tube 31.
  • the fastening screws 32 are therefore first inserted through the through holes 34 of the outer control head tube 31 and then screwed into the threaded holes 33 of the inner control head tube 22.
  • the through holes 34 are arranged in the longitudinal direction at intervals in the outer control head tube 31 in pairs, so that it is possible to select a specific pair of the through holes 34 for the threaded holes 33 of the inner control head tube 22 and to screw in the fastening screws 32. With the choice of this particular pair of through holes 34, the desired particular height of the outer steering head tube 31 above the front wheel 14 is determined.
  • the height of the outer control head tube 31 determines the height of the lower side member 13.
  • the outer control head tube 31 is adjustably fixed via a welded-on pivot lever 35.
  • the pivot lever 35 has a bore through which a horizontal pivot axis 36 extending in the transverse direction of the vehicle is inserted, which connects the pivot lever 35 to the lower side rail 13 here.
  • the pivot axis 36 can be, for example, a screw with a nut screwed on.
  • the pivoting lever 35 extending in the direction of travel shows at its front end an elongated hole 37 which extends in the pivoting direction, that is to say in the direction of an arc with the pivot axis 36 as the center.
  • a horizontal fastening screw 38 which extends in the transverse direction of the vehicle and which is inserted through one of a plurality of through holes 39 arranged one behind the other in the direction of travel.
  • the lower side rail 13 also has a plurality of through holes arranged one behind the other in the direction of travel for the pivot axis 36.
  • the pivot lever 35 can therefore be adjusted more or less far forward on the lower side rail 13.
  • the medical elevator according to the invention enables a large number of setting combinations, the setting corresponding to the insertion holes 17 of the perforated plate 15, the through holes 38 of the lower side rail 13 and the through holes 34 of the outer control head tube 31 being able to be carried out in small steps.
  • the wheelchair can therefore be adjusted to the most varied of desired seating positions.

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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)
  • Motorcycle And Bicycle Frame (AREA)
  • Rehabilitation Tools (AREA)

Abstract

The wheelchair comprises a vertically adjustable seat surface (10) whose carriage is supported on two lateral rear wheels (16), acting as drive wheels, and on two lateral, smaller front wheels (14) in each case mounted in a wheel fork (20) pivotable about upwardly projecting axes. This wheel fork (20) is arranged at the bottom end of an inner control head tube (22), which is introduced vertically adjustably into an outer control head tube (31) secured to the carriage. The inner control head tube (22) is equipped with at least one radial threaded bore, and the outer control head tube (31) is equipped with several radial through-holes (34), which are arranged at distances one behind the other along the tube axis and through which is releasably introduced a securing arrangement (32) engaging in the inner control head tube (22). <IMAGE>

Description

Die Erfindung betrifft einen Krankenfahrstuhl (Rollstuhl) mit einer höhenverstellbaren Sitzfläche, dessen Fahrgestell an zwei seitlichen, als Antriebsräder wirkenden Hinterrädern und an zwei seitlichen, jeweils in einer Radgabel gelagerten, kleineren Vorderrädern abgestüzt ist, wobei die Radgabeln um hochragende Achsen verschwenkbar sind.The invention relates to a medical elevator (wheelchair) with a height-adjustable seat, the chassis of which is supported on two lateral rear wheels acting as drive wheels and on two lateral, smaller front wheels, each mounted in a wheel fork, the wheel forks being pivotable about towering axes.

Ein solcher aus der DE-OS 32 27 365 bekannter Kranken­fahrstuhl läßt sich von dem Behinderten durch Verdrehen der großen Hinterräder mit den Händen antreiben. Dabei wirken die kleineren Vorderräder als Lenkräder, sie sind in den verschwenkbaren Radgabeln nachlaufend angeordnet und stellen sich selbsttätig auf die von dem Behinderten durch gleichmäßiges oder unterschied­liches Antreiben der beiden Hinterräder in die ge­wünschte Fahrtrichtung ein.Such an elevator known from DE-OS 32 27 365 can be driven by the handicapped by turning the large rear wheels with his hands. Here the smaller front wheels act as steering wheels, they are arranged in the swiveling wheel forks and automatically adjust to the direction of travel desired by the disabled person by driving the two rear wheels evenly or differently.

Es ist bekannt, die Hinterräder mit ihren Hinterachsen in seitlichen Lochplatten zu lagern, wobei jede Lochplatte mehrere in Fahrtrichtung und in senkrechter Richtung in Abständen angeordnete Einstecklöcher für die Hinterachsen haben kann. Damit läßt sich die gewünschte Höhe der Sitzfläche des Krankenfahr­stuhls einstellen.It is known to mount the rear wheels with their rear axles in perforated plates on the side, each perforated plate having a plurality of insertion holes for the rear axles which are spaced apart in the direction of travel and in the vertical direction. This allows the desired height of the seat of the medical elevator to be set.

Der Erfindung liegt die Aufgabe zurgrunde, die indi­viduelle Anpassungsfähigkeit des Krankenfahrstuhls an die Möglichkeiten des Behinderten zu vergrößern, so daß er beispielsweise unabhängig von der ent­sprechenden Altersstufe bei Sport, Spiel und in der Freizeit und auch beim normalen Fahren den jeweils günstigsten Höhen- und Neigungszustand der Sitzfläche einstellen oder einstellen lassen kann. Der Kranken­fahrstuhl soll sich also sowohl im Sportbereich als auch für solche Rollstuhlfahrer eignen, die noch geringe Beinfunktionen haben und diese zum Antreiben, beispielsweise durch Trippeln ausnutzen können. In diesem Fall kann also das Antreiben und Lenken zu­mindest teilweise mit den Beinen erfolgen. Der Kranken­fahrstuhl soll eine individuelle Schwerpunktwahl zur Optimierung des Rollverhaltens bei guter Kipp­stabilität ermöglichen. Es müssen also sowohl die Schwerpunkthöhe als auch der Schwerpunktabstand vom Schwenkpunkt veränderbar sein.The invention is based on the object, the individual adaptability of the elevator to the possibilities of the disabled to increase, so that it, for example, regardless of the appropriate age in sports, games and leisure and also during normal driving, the most favorable height and inclination Seat can be adjusted or adjusted. The medical elevator should therefore be suitable both in the sports sector and for those wheelchair users who still have low leg functions and can use them to drive them, for example by tripping. In this case, the driving and steering can take place at least partially with the legs. The medical elevator should enable an individual choice of focus to optimize the rolling behavior with good tipping stability. Both the center of gravity height and the center of gravity distance from the pivot point must be changeable.

Diese Aufgabe wird erfindungsgemäß bei einem Kranken­fahrstuhl der genannten Gattung dadurch gelöst, daß jede Radgabel am unteren Ende eines inneren Steuer­kopfrohrs angeordnet ist, das in ein am Fahrgestell befestigtes äußeres Steuerkopfrohr höhenverstellbar eingesteckt ist, und daß das innere Steuerkopfrohr mindestens mit einer radialen Gewindebohrung und das äußere Steuerkopfrohr mit mehreren, längs der Rohrachse in Abständen hintereinander angeordneten, radialen Durchgangslöchern ausgestattet ist, durch die eine in das innere Steuerkopfrohr fassende Be­festigungseinrichtung lösbar eingesteckt ist.This object is achieved in a medical elevator of the type mentioned in that each wheel fork is arranged at the lower end of an inner control head tube, which is inserted in a height-adjustable manner in an outer control head tube fastened to the chassis, and in that the inner control head tube has at least one radial threaded bore and the outer one Control head tube is equipped with a plurality of radial through holes arranged one behind the other at intervals along the tube axis, through which a fastening device engaging in the inner control head tube is detachably inserted.

Durch unterschiedlich weites Einstecken des inneren Steuerkopfrohrs in das äußere Steuerkopfrohr und durch Befestigen der beiden Rohre in einer bestimmten Lage aneinander läßt sich somit die Höhe der vorderen Abstützung des Fahrgestells wahlweise einstellen bzw. verändern. Damit ist eine Veränderung der Sitzneigung verbunden.By inserting the inner control head tube into the outer control head tube to different extents and by fastening the two tubes to one another in a certain position, the height of the front support of the chassis can thus be adjusted or changed. This is associated with a change in the seat angle.

Bevorzugt ermöglicht die Verwendung einer Schraube eine besonders einfache Befestigung der beiden Rohre aneinander. Die Schraube läßt sich dabei durch ein bestimmtes Durchgangsloch des äußeren Steuerkopfrohrs in radialer Richtung hindurchstecken und in die mit diesem Durchgangsloch fluchtende Gewinderbohrung des inneren Steuerkopfrohrs einschrauben. Zur Veränderung der Einstecktiefe des inneren Steuerkopfrohrs wird die Befestigungsschraube entfernt und die Gewinde­bohrung des inneren Rohrs wird mit einem höheren Durchgangsloch des äußeren Rohrs zur Deckung gebracht, um in dieser neuen Stellung die Befestigungsschraube wieder einzuschrauben.The use of a screw preferably enables the two tubes to be attached to one another in a particularly simple manner. The screw can be inserted through a certain through hole of the outer control head tube in the radial direction and screwed into the threaded bore of the inner control head tube aligned with this through hole. To change the insertion depth of the inner control head tube, the fastening screw is removed and the threaded bore of the inner tube is brought into line with a higher through hole of the outer tube, in order to screw the fastening screw in again in this new position.

Bevorzugt sind zwei Gewindebohrungen des inneren Steuerkopfrohrs und die Durchgangslöcher des äußeren Steuerkopfrohrs jeweils längs eine gemeinsamen Durch­messers paarweise gegenüberliegend angeordnet. Da­durch ergibt sich eine noch sicherere, zweiseitige Befestigung der beiden Rohre aneinander.Preferably two threaded bores of the inner control head tube and the through holes of the outer control head tube are each arranged in pairs opposite one another along a common diameter. This results in an even more secure two-sided fastening of the two tubes to one another.

Jede Radgabel ist bevorzugt am unteren Ende einer Lagerachse befestigt, die innerhalb des inneren Steuerkopfrohrs drehbar gelagert ist. Diese Anordnung ermöglicht dem Vorderrad eine sofortige leichtgängige Anpassung an die aufgezwungene Fahrtrichtung.Each wheel fork is preferably attached to the lower end of a bearing axle which is rotatably mounted within the inner control head tube. This arrangement enables the front wheel to immediately adapt smoothly to the direction of travel imposed.

Bevorzugte Ausführungsformen der Erfindung sind in den Patentansprüchen enthalten. Der Schutzumfang erstreckt sich nicht nur auf die beanspruchten Einzel­merkmale, sondern auch auf deren Kombination.Preferred embodiments of the invention are contained in the claims. The scope of protection extends not only to the individual features claimed, but also to their combination.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Es zeigen:

  • Fig.1 eine perspektivische Darstellung eines erfindungsgemäßen Krankenfahrstuhls;
  • Fig.2 einen senkrechten Schnitt durch den Verbindungsbereich der Radgabel eines Vorderrades und eines unteren Seiten­holms des Fahrgestells mit dem äußeren Steuerkopfrohr und dem darin einge­steckten inneren Steuerkopfrohr;
  • Fig.3 einen Längsschnitt durch das äußere Steuerkopfrohr;
  • Fig.4 einen Längsschnitt durch das innere Steuerkopfrohr;
An embodiment of the invention is shown in the drawing and will be described in more detail below. Show it:
  • 1 is a perspective view of an elevator according to the invention;
  • 2 shows a vertical section through the connecting region of the wheel fork of a front wheel and a lower side member of the chassis with the outer control head tube and the inner control head tube inserted therein;
  • 3 shows a longitudinal section through the outer control head tube;
  • 4 shows a longitudinal section through the inner control head tube;

Ein erfindungsgemäßer Krankenfahrstuhl mit einer Sitzfläche 10, einer Rückenlehne 11 und zwei Arm­lehnen 12 weist ein Fahrgestell mit zwei gleichen seitlichen von Rohrkonstruktionen gebildeten Rahmen auf, wobei jeweils ein unterer Seitenholm 13 eines Rahmens mit einem Vorderrad 14 und über eine Lochplatte 15 mit einem Hinterrad 16 verbunden ist. Die Lochplatte 15 ist mit mehreren Einstecklöchern 17 versehen, die in Fahrtrichtung und in senkrechter Richtung in Abständen voneinander angeordnet sind. Sie ermög­lichen das Einstecken einer Hinterachse 18 des Hinterrades 16 in ein bestimmtes, der gewünschten Stellung entsprechendes Einsteckloch 17.A hospital elevator according to the invention with a seat 10, a backrest 11 and two armrests 12 has a chassis with two identical lateral frames formed by tubular structures, a lower side rail 13 of a frame being connected to a front wheel 14 and a perforated plate 15 to a rear wheel 16 is. The perforated plate 15 is provided with a plurality of insertion holes 17 which are spaced from one another in the direction of travel and in the vertical direction. They allow the insertion of a rear axle 18 of the Rear wheel 16 into a specific insertion hole 17 corresponding to the desired position.

Jedes Vorderrad 14 ist mit waagerechter Drehachse 19 in einer Radgabel 20 gelagert, die sich von der Drehachse 19 aus nicht senkrecht, sondern in einem spitzen Winkel nach oben erstreckt. Mit ihrem oberen Ende ist die Radgabel 20 an einer aufragenden Lager­achse 21 befestigt, die in einem inneren Steuerkopfrohr 22 drehbar gelagert ist, das am Fahrgestell lösbar befestigt ist. Die Anordnung des Vorderrades 14 ermög­licht damit die selbsttätige Einstellung auf die gewünschte Fahrtrichtung durch Verdrehen der Lagerachse 21. An einem Bund 23 der Lagerachse 21 liegt das obere Ende der Radgabel 20 an und ist mit Hilfe einer auf die Lagerachse 21 aufgeschraubten Mutter 24 dort befestigt. Dieser Bund 23 befindet sich an der unteren Stirnseite des inneren Steuerkopfrohrs 22.Each front wheel 14 is mounted with a horizontal axis of rotation 19 in a wheel fork 20 which does not extend vertically from the axis of rotation 19, but extends upward at an acute angle. With its upper end, the wheel fork 20 is fastened to an upstanding bearing axis 21 which is rotatably mounted in an inner control head tube 22 which is detachably fastened to the chassis. The arrangement of the front wheel 14 thus enables automatic adjustment to the desired direction of travel by rotating the bearing axis 21. The upper end of the wheel fork 20 lies against a collar 23 of the bearing axis 21 and is fastened there by means of a nut 24 screwed onto the bearing axis 21. This collar 23 is located on the lower end face of the inner control head tube 22.

Von unten aus weist das innere Steuerkopfrohr 22 zunächst eine stirnseitige Lagerbohrung 25 für ein Axiallager 26 der Lagerachse 21 auf. Der Lagerbohrung 25 schließt sich eine Lagerbohrung 27 für ein unteres Radiallager 287 der Lagerachse 21 an, wobei dieses Lager 28 ein Nadellager sein kann. Für den oberen Endbereich der Lagerachse 21 ist in dem inneren Steuer­kopfrohr 22 eine weitere Lagerbohrung 29 für ein oberes Radiallager 30 der Lagerachse 21 angeordnet.From below, the inner control head tube 22 initially has an end bearing bore 25 for an axial bearing 26 of the bearing axis 21. The bearing bore 25 is followed by a bearing bore 27 for a lower radial bearing 287 of the bearing axis 21, which bearing 28 can be a needle bearing. For the upper end region of the bearing axis 21, a further bearing bore 29 for an upper radial bearing 30 of the bearing axis 21 is arranged in the inner control head tube 22.

Das innere Steuerkopfrohr 22 ist von unten in ein äußeres Steuerkopfrohr 31 passend eingesteckt und mit Hilfe von zwei Befestigungschrauben 32 in einer bestimmten Stellung befestigt. Für die Befestigungs­schrauben 32 weist das inneren Steuerkopfrohr 22 zwei auf einem Rohrdurchmesser gegenüberliegend ange­ordnete Gewindebohrungen 33 auf. Diese sind mit zwei entsprechenden Durchgangslöchern 34 des äußeren Steuer­kopfrohrs 31 zur Deckung gebracht. Die Befestigungs­schrauben 32 sind daher zunächst durch die Durch­gangslöcher 34 des äußeren Steuerkopfrohrs 31 hindurch­gesteckt und anschließend in die Gewindebohrungen 33 des inneren Steuerkopfrohrs 22 eingeschraubt. Die Durchgangslöcher 34 sind in dem äußeren Steuer­kopfrohr 31 in Längsrichtung in Abständen hinterein­ander paarweise angeordnet, so daß es möglich ist, ein bestimmtes Paar der Durchgangslöcher 34 für die Gewindebohrungen 33 des inneren Steuerkopfrohrs 22 auszuwählen und die Befestigungsschrauben 32 einzu­schrauben. Mit der Wahl dieses bestimmten Paars von Durchgangslöchern 34 ist die gewünschte bestimmte Höhe des äußeren Steuerkopfrohrs 31 über dem Vorderrad 14 festgelegt.The inner control head tube 22 is inserted from below into an outer control head tube 31 and fastened in a certain position with the aid of two fastening screws 32. The inner control head tube 22 has the fastening screws 32 two threaded bores 33 arranged opposite one another on a pipe diameter. These are made to coincide with two corresponding through holes 34 in the outer control head tube 31. The fastening screws 32 are therefore first inserted through the through holes 34 of the outer control head tube 31 and then screwed into the threaded holes 33 of the inner control head tube 22. The through holes 34 are arranged in the longitudinal direction at intervals in the outer control head tube 31 in pairs, so that it is possible to select a specific pair of the through holes 34 for the threaded holes 33 of the inner control head tube 22 and to screw in the fastening screws 32. With the choice of this particular pair of through holes 34, the desired particular height of the outer steering head tube 31 above the front wheel 14 is determined.

Die Höhe des äußeren Steuerkopfrohrs 31 bestimmt die Höhe des unteren Seitenholms 13. An diesem ist das äußere Steuerkopfrohr 31 über einen angeschweißten Schwenkhebel 35 verstellbar festgelegt. An seinem hinteren Ende weist der Schwenkhebel 35 eine Bohrung auf, durch die eine waagerechte, in Fahrzeugquer­richtung verlaufende Schwenkachse 36 gesteckt ist, die den Schwenkhebel 35 mit dem unteren Seitenholm 13 hier verbindet. Die Schwenkachse 36 kann beispiels­weise eine Schraube mit aufgeschraubter Mutter sein. Der in Fahrtrichtung sich erstreckende Schwenkhebel 35 zeigt an seinem vorderen Ende ein Langloch 37, das sich in Schwenkrichtung, also in Richtung eines Kreisbogens mit der Schwenkachse 36 als Mittelpunkt erstreckt. Durch das Langloch 37 hindurch verläuft eine waagerechte, in Fahrzeugquerrichtung sich er­streckende Befestigungschraube 38, die durch eines von mehreren in Fahrtrichtung hintereinander in Ab­ständen angeordneten Durchgangslöchern 39 hindurchge­steckt ist. Ebenso wie für die Befestigungsschraube 38 weist der untere Seitenholm 13 auch für die Schwenkachse 36 mehrere in Fahrtrichtung in Abständen hintereinander angeordnete Durchgangslöcher auf. Der Schwenkhebel 35 kann daher mehr oder weniger weit am unteren Seitenholm 13 nach vorn verstellt werden.The height of the outer control head tube 31 determines the height of the lower side member 13. On this, the outer control head tube 31 is adjustably fixed via a welded-on pivot lever 35. At its rear end, the pivot lever 35 has a bore through which a horizontal pivot axis 36 extending in the transverse direction of the vehicle is inserted, which connects the pivot lever 35 to the lower side rail 13 here. The pivot axis 36 can be, for example, a screw with a nut screwed on. The pivoting lever 35 extending in the direction of travel shows at its front end an elongated hole 37 which extends in the pivoting direction, that is to say in the direction of an arc with the pivot axis 36 as the center. Runs through the elongated hole 37 a horizontal fastening screw 38 which extends in the transverse direction of the vehicle and which is inserted through one of a plurality of through holes 39 arranged one behind the other in the direction of travel. As for the fastening screw 38, the lower side rail 13 also has a plurality of through holes arranged one behind the other in the direction of travel for the pivot axis 36. The pivot lever 35 can therefore be adjusted more or less far forward on the lower side rail 13.

Der erfindungsgemäße Krankenfahrstuhl ermöglicht eine große Zahl von Einstellungskombinationen, wobei die Einstellung entsprechend den Einstecklöchern 17 der Lochplatte 15, den Durchgangslöchern 38 des unteren Seitenholms 13 und den Durchgangslöchern 34 des äußeren Steuerkopfrohrs 31 in geringen Stufen erfolgen kann. Der Rollstuhl kann sich daher auf die unterschiedlichsten gewünschten Sitzpositionen wahlweise einstellen lassen.The medical elevator according to the invention enables a large number of setting combinations, the setting corresponding to the insertion holes 17 of the perforated plate 15, the through holes 38 of the lower side rail 13 and the through holes 34 of the outer control head tube 31 being able to be carried out in small steps. The wheelchair can therefore be adjusted to the most varied of desired seating positions.

Claims (9)

1. Krankenfahrstuhl (Rollstuhl) mit einer höhen­verstellbaren Sitzfläche, dessen Fahrgestell an zwei seitlichen, als Antriebsräder wirkenden Hinterrädern (16) und an zwei seitlichen, je­weils in einer Radgabel (20) gelagerten, kleineren Vorderrädern (14) abgestützt ist, wobei jede Radgabel (20) um eine hochragende Achse ver­schwenkbar ist, dadurch gekennzeichnet, daß jede Radgabel (20) am unteren Ende eines inneren Steuerkopfrohrs (22) angeordnet ist, das in ein am Fahrgestell befestigtes äußeres Steuer­kopfrohr (31) höhenverstellbar eingesteckt ist, und daß das innere Steuerkopfrohr (22) mindestens mit einer radialen Gewindebohrung (33) und das äußere Steuerkopfrohr (31) mit mehreren, längs der Rohrachse in Abständen hintereinander ange­ordneten, radialen Durchgangslöchern (34) aus­gestattet ist, durch die eine in das innere Steuerkopfrohr (22) fassende Befestigungsein­richtung (32) lösbar eingesteckt ist.1.Sick elevator (wheelchair) with a height-adjustable seat, the chassis of which is supported on two side rear wheels (16) acting as drive wheels and on two side, smaller front wheels (14) each mounted in a wheel fork (20), each wheel fork ( 20) can be pivoted about a protruding axis, characterized in that each wheel fork (20) is arranged at the lower end of an inner control head tube (22) which is inserted in a height-adjustable manner in an outer control head tube (31) attached to the chassis, and in that the inner control head tube (22) is equipped with at least one radial threaded bore (33) and the outer control head tube (31) is provided with a plurality of radial through holes (34) arranged one behind the other at intervals along the tube axis, through which a fastening device (22) which fits into the inner control head tube (22) 32) is detachably inserted. 2. Krankenfahrstuhl nach Anspruch 1, dadurch ge­kennzeichnet, daß zwei Gewindebohrungen (33) des inneren Steuerkopfrohres (22) und die Durchgangslöcher (34) des äußeren Steuerkopf­rohres (31) jeweils längs eines gemeinsamen Durchmessers paarweise gegenüberliegend ange­ordnet sind.2. Hospital elevator according to claim 1, characterized in that two threaded bores (33) of the inner control head tube (22) and the through holes (34) of the outer control head tube (31) are each arranged in pairs opposite one another along a common diameter. 3. Krankenfahrstuhl nach den Ansprüchen 1 oder 2, dadurch gekennzeichnet, daß das äußere Steuerkopfrohr (31) an einem in Fahrtrichtung sich erstreckenden Schwenkhebel (35) befestigt ist, der um eine zur Drehachse (18) der Hinter­räder (16) parallele Schwenkachse (36) gegenüber einem unteren Seitenholm (13) des Fahrgestelles verstellbar ist.3. Hospital elevator according to claims 1 or 2, characterized in that the outer control head tube (31) on one in the direction of travel extending pivot lever (35) is fixed, which is adjustable relative to a lower side rail (13) of the chassis about a pivot axis (36) parallel to the axis of rotation (18) of the rear wheels (16). 4. Krankenfahrstuhl nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß der Schwenkhebel (35) an seinem von der Schwenkachse (36) abge­wandten Ende ein in Schwenkrichtung verlaufendes Langloch (37) aufweist, durch das eine in den Seitenholm (13) eingesetzte lösbare Befestigungs­einrichtung wie Schrauben (38) eingesteckt ist.4. Hospital elevator according to claims 1 to 3, characterized in that the pivot lever (35) at its end remote from the pivot axis (36) has a pivoting elongated hole (37) through which one in the side rail (13) inserted releasable Fastening device such as screws (38) is inserted. 5. Krankenfahrstuhl nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet, daß an dem unteren Seiten­holm (13) für die Schwenkachse (36) und die Befestigungseinrichtung (38) des Schwenkhebels (35) mehrere in Fahrtrichtung in Abständen hinter­einander angeordnete Durchgangslöcher (39) vorge­sehen sind.5. Hospital elevator according to claims 1 to 4, characterized in that on the lower side member (13) for the pivot axis (36) and the fastening device (38) of the pivot lever (35) several through holes (39) arranged one behind the other in the direction of travel are provided are. 6. Krankenfahrstuhl nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß jede Radgabel (29) am unteren Ende einer Lagerachse (21) be­festigt ist, die innerhalb eines inneren Steuer­kopfrohres (22) drehbar gelagert ist.6. Hospital elevator according to one of claims 1 to 5, characterized in that each wheel fork (29) is attached to the lower end of a bearing axis (21) which is rotatably mounted within an inner control head tube (22). 7. Krankenfahrstuhl nach Anspruch 6, dadurch ge­kennzeichnet, daß das innere Steuerkopfrohr (22) am unteren Ende eine stirnseitige Lager­bohrung (25) aufweist, in der ein Axiallager (26) der Lagerachse (21) angeordnet ist.7. Hospital elevator according to claim 6, characterized in that the inner control head tube (22) has at the lower end an end bearing hole (25) in which an axial bearing (26) of the bearing axis (21) is arranged. 8. Krankenfahrstuhl nach den Ansprüchen 1 bis 7, dadurch gekennzeichnet, daß innerhalb des inneren Steuerkopfrohrs (22) Lagerbohrungen (27, 29) für Radiallager (28, 30) der Lagerachse (21) angeordnet sind.8. Hospital elevator according to claims 1 to 7, characterized in that within the inner control head tube (22) bearing bores (27, 29) for radial bearings (28, 30) of the bearing axis (21) are arranged. 9. Krankenfahrstuhl nach den Ansprüchen 1 bis 8, dadurch gekennzeichnet, daß die Achsen (18) der Hinterräder (16) jeweils in einer an den Seitenholmen (13) eines Rahmens angeordneten Lochplatte (15) lageveränderbar gelagert sind.9. An elevator according to claims 1 to 8, characterized in that the axes (18) of the rear wheels (16) are each mounted in a position-changing manner in a perforated plate (15) arranged on the side rails (13) of a frame.
EP87116832A 1986-11-28 1987-11-14 Wheel chair for the sick Withdrawn EP0268960A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8631974U DE8631974U1 (en) 1986-11-28 1986-11-28 Hospital elevator
DE8631974U 1986-11-28

Publications (2)

Publication Number Publication Date
EP0268960A2 true EP0268960A2 (en) 1988-06-01
EP0268960A3 EP0268960A3 (en) 1989-05-17

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EP87116832A Withdrawn EP0268960A3 (en) 1986-11-28 1987-11-14 Wheel chair for the sick

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DE (1) DE8631974U1 (en)

Cited By (15)

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Publication number Priority date Publication date Assignee Title
DE4136457A1 (en) * 1991-10-21 1993-04-22 Meyra Wilhelm Meyer Gmbh & Co Wheelchair with manually actuated rear wheels - has wheels attached to side frames which enable height of seat to be adjusted
US5284350A (en) * 1992-05-22 1994-02-08 Medical Composite Technology Foldable wheelchair and side frame assembly
US5575348A (en) * 1994-04-15 1996-11-19 Invacare Corporation Powered wheelchair with adjustable center of gravity and independent suspension
EP0992226A3 (en) * 1998-10-05 2001-01-03 Sopur Medizintechnik GmbH Wheelchair
US6176335B1 (en) 1996-07-03 2001-01-23 Pride Mobility Products, Corporation Power wheelchair
US6474671B1 (en) * 1999-05-24 2002-11-05 Jose Raul San Miguel Gomez Device for playing wheelchair football
CN102860905A (en) * 2012-10-12 2013-01-09 常州中进医疗器材有限公司 Gravity-adjustable wheelchair
US9603762B2 (en) 2007-02-08 2017-03-28 Invacare Corporation Wheelchair suspension
US9700470B2 (en) 2012-02-15 2017-07-11 Invacare Corporation Wheelchair suspension
US9827823B2 (en) 2007-02-14 2017-11-28 Invacare Corporation Stability control system
US9925100B2 (en) 2002-10-25 2018-03-27 Invacare Corporation Suspension for wheeled vehicles
US9987177B2 (en) 2000-10-27 2018-06-05 Invacare Corporation Obstacle traversing wheelchair
US11096845B2 (en) 2009-10-09 2021-08-24 Invacare Corporation Wheelchair suspension
US11213441B2 (en) 2002-10-25 2022-01-04 Invacare Corporation Suspension for wheeled vehicles
US11903887B2 (en) 2020-02-25 2024-02-20 Invacare Corporation Wheelchair and suspension systems

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US5590893A (en) * 1994-12-28 1997-01-07 No Limit Designs, Inc. Wheelchair frame assembly
US7040429B2 (en) 2001-10-10 2006-05-09 Invacare Corporation Wheelchair suspension

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FI46026C (en) * 1971-01-11 1972-12-11 Suomen Vanutehdas Finnwad Wheelchair that can be used on the stairs.
US4082348A (en) * 1976-03-01 1978-04-04 Invacare Corporation Adjustable wheel chair
DE7930623U1 (en) * 1979-10-30 1980-02-07 Jungheinrich Unternehmensverwaltung Kg, 2000 Hamburg
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DE3514572A1 (en) * 1985-04-23 1986-10-30 Günter Meier GmbH, 4952 Porta Westfalica MEDICAL ELEVATOR
DE3517050A1 (en) * 1985-05-11 1986-11-13 Erich 6837 St Leon-Rot Purkott Wheel-chair, especially for sports purposes

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Publication number Priority date Publication date Assignee Title
DE4136457A1 (en) * 1991-10-21 1993-04-22 Meyra Wilhelm Meyer Gmbh & Co Wheelchair with manually actuated rear wheels - has wheels attached to side frames which enable height of seat to be adjusted
US5284350A (en) * 1992-05-22 1994-02-08 Medical Composite Technology Foldable wheelchair and side frame assembly
US5496050A (en) * 1992-05-22 1996-03-05 Everest & Jennings International Ltd. Foldable wheelchair and side frame assembly for foldable wheelchair
US5575348A (en) * 1994-04-15 1996-11-19 Invacare Corporation Powered wheelchair with adjustable center of gravity and independent suspension
US5853059A (en) * 1994-04-15 1998-12-29 Invacare Corporation Powered wheelchair with adjustable center of gravity and independent suspension
US6176335B1 (en) 1996-07-03 2001-01-23 Pride Mobility Products, Corporation Power wheelchair
EP0992226A3 (en) * 1998-10-05 2001-01-03 Sopur Medizintechnik GmbH Wheelchair
US6474671B1 (en) * 1999-05-24 2002-11-05 Jose Raul San Miguel Gomez Device for playing wheelchair football
US9987177B2 (en) 2000-10-27 2018-06-05 Invacare Corporation Obstacle traversing wheelchair
US11213441B2 (en) 2002-10-25 2022-01-04 Invacare Corporation Suspension for wheeled vehicles
US9925100B2 (en) 2002-10-25 2018-03-27 Invacare Corporation Suspension for wheeled vehicles
US10512572B2 (en) 2002-10-25 2019-12-24 Invacare Corporation Suspension for wheeled vehicles
US10912690B2 (en) 2007-02-08 2021-02-09 Invacare Corporation Wheelchair suspension
US9603762B2 (en) 2007-02-08 2017-03-28 Invacare Corporation Wheelchair suspension
US10265229B2 (en) 2007-02-08 2019-04-23 Invacare Corporation Wheelchair suspension
US11819464B2 (en) 2007-02-08 2023-11-21 Invacare Corporation Wheelchair suspension
US11464687B2 (en) 2007-02-08 2022-10-11 Invacare Coporation Wheelchair suspension
US10532626B2 (en) 2007-02-14 2020-01-14 Invacare Corporation Stability control system
US11097589B2 (en) 2007-02-14 2021-08-24 Invacare Corporation Stability control system
US9827823B2 (en) 2007-02-14 2017-11-28 Invacare Corporation Stability control system
US11535078B2 (en) 2007-02-14 2022-12-27 Invacare Corporation Stability control system
US11096845B2 (en) 2009-10-09 2021-08-24 Invacare Corporation Wheelchair suspension
US11857470B2 (en) 2009-10-09 2024-01-02 Invacare Corporation Wheelchair suspension
US12453665B2 (en) 2009-10-09 2025-10-28 Invacare Corporation Wheelchair suspension
US9700470B2 (en) 2012-02-15 2017-07-11 Invacare Corporation Wheelchair suspension
US11234875B2 (en) 2012-02-15 2022-02-01 Invacare Corporation Wheelchair suspension
US10434019B2 (en) 2012-02-15 2019-10-08 Invacare Corporation Wheelchair suspension
CN102860905A (en) * 2012-10-12 2013-01-09 常州中进医疗器材有限公司 Gravity-adjustable wheelchair
US11903887B2 (en) 2020-02-25 2024-02-20 Invacare Corporation Wheelchair and suspension systems

Also Published As

Publication number Publication date
DE8631974U1 (en) 1987-04-16
EP0268960A3 (en) 1989-05-17

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