DE19819807A1 - Hand drive unit for wheelchairs - Google Patents

Hand drive unit for wheelchairs

Info

Publication number
DE19819807A1
DE19819807A1 DE1998119807 DE19819807A DE19819807A1 DE 19819807 A1 DE19819807 A1 DE 19819807A1 DE 1998119807 DE1998119807 DE 1998119807 DE 19819807 A DE19819807 A DE 19819807A DE 19819807 A1 DE19819807 A1 DE 19819807A1
Authority
DE
Germany
Prior art keywords
lever
wheelchair
lever arm
manual drive
centering
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Withdrawn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
DE1998119807
Other languages
German (de)
Inventor
Johannes Heyen
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.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE1998119807 priority Critical patent/DE19819807A1/en
Publication of DE19819807A1 publication Critical patent/DE19819807A1/en
Withdrawn legal-status Critical Current

Links

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
    • A61G5/02—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person
    • A61G5/021—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person having particular propulsion mechanisms
    • A61G5/022—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person having particular propulsion mechanisms acting on wheels, e.g. on tires or hand rims
    • 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
    • A61G5/02—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person
    • A61G5/024—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person having particular operating means
    • A61G5/025—Levers

Landscapes

  • 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)

Abstract

The wheelchair hand drive unit has lever arms (2) with rubber jaws (3) which clamp onto a gripping ring (4) of the wheelchair when they are moved slightly (1). Further movement of the lever arms drives the wheelchair forwards. The lever arm is fixed via a centering lever (6) at the wheel center point (7), and movement of a switching lever enables forwarding, reversing and braking. Drive levers are fixed on each wheel.

Description

Es ist bekannt, daß handangetriebene und mit einem Greifreifen ausgestattete Krankenrollstühle nur auf ebenen Strecken gefahren werden können, weil die Armkraft der Kranken meistens nicht ausreicht, um Steigungen zu überwinden. Auch längere Strecken sind kaum zu bewältigen.It is known to be hand powered and equipped with a push rim Hospital wheelchairs can only be driven on level routes because of the Arm strength of the sick is usually not sufficient to overcome inclines. Even long distances can hardly be mastered.

Der in Schutzanspruch 1 angegebenen Erfindung liegt das Problem zugrunde, einen Handantrieb zu schaffen, bei dem deutlich weniger Arm kraft aufgewendet werden muß.The invention specified in protection claim 1 is based on the problem to create a manual drive in which significantly less arm force is used must become.

Dieses Problem wird durch die in Patentanspruch 1 aufgeführten Merkmale gelöst. Insbesondere durch die langen Hebelarme. Im Vergleich mit den Greifreifen, bewir­ ken sie ein größeres Drehmoment auf die Räder.This problem is solved by the features listed in claim 1. Especially thanks to the long lever arms. In comparison with the push rims, cause apply more torque to the wheels.

Die mit der Erfindung erzielten Vorteile bestehen darin, daß der Rollstuhlfahrer weniger Kraft aufwenden muß, um sein Fahrzeug anzutreiben. Jetzt kann er besser leichte Steigungen überwinden. Außerdem wird, durch die Anordnung der Hebelarmhandgriffe, die Schulter- und Armmuskulatur des Fahrers weniger belastet. Ein anderer Vorteil ist, daß diese Vorrichtung nachträglich an unterschiedlichen Fabrikaten und Typen angebaut werden kann.The advantages achieved by the invention are that the wheelchair user has to use less power to drive his vehicle. Now he can do better overcome slight inclines. In addition, by the arrangement of the Lever arm handles, the driver's shoulder and arm muscles are less stressed. Another advantage is that this device can be retrofitted to different Brands and types can be grown.

Eine weitere Ausgestaltung der Erfindung ist in Patentanspruch 2 angegeben. Hier nimmt ein Freilauf die Lagerung des Hebelarms am Radmittelpunkt auf (zeichnerisch nicht dargestellt). Wobei dann Gummibacken mit Klemmvorrichtung entfallen. Diese Variante ist hauptsächlich für sportlich beanspruchte Rollstühle vorgesehen.A further embodiment of the invention is specified in claim 2. Here a freewheel starts the bearing of the lever arm at the wheel center (in the drawing not shown). Then there is no need for rubber jaws with a clamping device. This The variant is mainly intended for wheelchairs with sporty demands.

Ein Ausführungsbeispiel der Erfindung ist anhand der Fig. 1 bis 3 in der Zeichnung dargestellt.An embodiment of the invention is shown in FIGS. 1 to 3 in the drawing.

Es zeigenShow it

Fig. 1 die Seitenansicht des kompletten Rollstuhls 5 Fig. 1 is a side view of the complete wheelchair 5

Fig. 2 eine Teilansicht des Rollstuhlrades 8 mit der neuen Antriebsvorrichtung in vergrößertem Maßstab Fig. 2 is a partial view of the wheelchair wheel 8 with the new drive device on an enlarged scale

Fig. 3 eine Schnittansicht aus Fig. 2. Fig. 3 is a sectional view of FIG. 2.

In den Figuren ist der Handantrieb mit Hebelarm 2, Gummibacken 3, Zentrierhebel 6 und Schalthebel 9 dargestellt. Er wird an beiden Rollstuhlrädern montiert. Weil die Vorrichtung als Nachrüsteinheit für vorhandene Stühle gedacht ist, läßt sie sich auf verschiedenen Größen und Typen einrichten siehe 15. Aus diesem Grund ist die Zentrierhebellagerung 10 an den Speichen 11 befestigt. Der Hebelarm 2 ist in neutraler Stellung dargestellt. Wenn der Rollstuhlfahrer ihn in Fahrtrichtung nach vorne bewegt, kippt er um den Drehpunkt 17 und die Gummibacken 3 klemmen sich auf den Greifring 4 fest. Wird nun der Hebelarm 2 weiter nach vorne bewegt dann treibt man damit über den Greifring 4 den Rollstuhl an. Zum Nachfassen wird der Hebelarm 2 zurückgezogen. Damit sich die Gummibacken aber nicht in der Gegenrichtung festklemmen, schlägt der Hebelarm 2 in der neutralen Stellung gegen einen Anschlag 18 am Zentrierhebel 6. Dadurch werden der Hebelarm 2 und der Zentrierhebel 6 komplett zurückgezogen. Und zwar soweit, wie die Armbewegungen des Rollstuhlfahrers es zulassen. Das wiederum ist dann der Ausgangspunkt für die nächste Vorwärtsbewegung.In the figures, the manual drive with lever arm 2 , rubber jaws 3 , centering lever 6 and shift lever 9 is shown. It is mounted on both wheelchair wheels. Because the device is intended as a retrofit unit for existing chairs, it can be set up in different sizes and types see 15 . For this reason, the centering lever bearing 10 is attached to the spokes 11 . The lever arm 2 is shown in a neutral position. If the wheelchair user moves it forward in the direction of travel, it tilts about the pivot point 17 and the rubber jaws 3 clamp onto the gripping ring 4 . If the lever arm 2 is now moved further forward, it is used to drive the wheelchair via the gripping ring 4 . The lever arm 2 is withdrawn for follow-up. So that the rubber jaws do not jam in the opposite direction, the lever arm 2 strikes in the neutral position against a stop 18 on the centering lever 6 . As a result, the lever arm 2 and the centering lever 6 are completely retracted. As far as the arm movements of the wheelchair user allow. This in turn is the starting point for the next forward movement.

Zum Bremsen werden die Schalthebel 9 gezogen. Dies bewirkt, daß die Anschläge 18 die Kippbewegung in die Gegenrichtung freigeben. Die Gummibacken 3 erzeugen jetzt eine Bremswirkung auf den Greifreifen 4. Auch das Lenken des Rollstuhls wird durch das Festklemmen der Gummibacken 3 auf einem der Greifringe 4 ermöglicht.The shift levers 9 are pulled to brake. This causes the stops 18 to release the tilting movement in the opposite direction. The rubber jaws 3 now produce a braking effect on the push rims 4 . Steering the wheelchair is also made possible by clamping the rubber jaws 3 on one of the gripping rings 4 .

Zum Rückwärtsfahren werden, wie beim Bremsen, die Schalthebel 9 gezogen und festgehalten. Die Anschläge 18 schalten sich dadurch um. Wenn nun an den Hebelarmen 2 gezogen und nachgefaßt wird, bewegt sich der Rollstuhl rück­ wärts.For reversing, the shift levers 9 are pulled and held, as when braking. The stops 18 thereby switch. If you pull on the lever arms 2 and follow up, the wheelchair moves backwards.

Mit der Erfindung wird der manuelle Antrieb von Rollstühlen erheblich erleichtert. Es muß weniger Kraft aufgewendet werden. Rampen und Steigungen können jetzt ohne fremde Hilfe leichter überwunden werden. Für Behinderte ist das eine Verbesserung der Lebensqualität.With the invention, the manual drive of wheelchairs is made considerably easier. It less effort is required. Ramps and slopes can now can be overcome more easily without outside help. It's one thing for the disabled Improve quality of life.

Claims (2)

1. Handantrieb für Krankenrollstuhl dadurch gekennzeichnet,
  • - daß durch eine kleine Kippbewegung (1) des Hebelarms (2) sich zwei Gummibacken (3) auf den Greifring (4) des Rollstuhls (5) festklemmen und durch das Weiterbewegen des Hebelarms (2), der Rollstuhl (5) angetrieben wird.
  • - daß durch einen Zentrierhebel (6) der Hebelarm (2) im Radmittelpunkt (7) fixiert ist.
  • - daß beide Räder (8) des Rollstuhls (5) den Handantrieb erhalten.
  • - daß durch Betätigen eines Schalthebels (9) das Vorwärts- und Rückwärtsfahren sowie das Bremsen ermöglicht wird.
  • - daß die Lagerung (10) des Zentrierhebels (6) an den Radspeichen (11) befestigt werden kann.
  • - daß der Hebelarm (2) in seiner Länge (12) verstellbar ist.
  • - daß der Hebelarm (2) bei Nichtbenutzung:
    • a) auf einen Bügel (13) abgelegt wird,
    • b) durch das Lösen einer Schraube (14) die ganze Vorrichtung abgebaut werden kann.
  • - daß die Vorrichtung durch das Verstellteil (15) an unterschiedliche Greifringdurchmesser (16) angepaßt werden kann.
1. manual drive for hospital wheelchair characterized in
  • - That by a small tilting movement ( 1 ) of the lever arm ( 2 ) two rubber jaws ( 3 ) on the gripping ring ( 4 ) of the wheelchair ( 5 ) clamp and by moving the lever arm ( 2 ), the wheelchair ( 5 ) is driven.
  • - That by a centering lever ( 6 ), the lever arm ( 2 ) in the wheel center ( 7 ) is fixed.
  • - That both wheels ( 8 ) of the wheelchair ( 5 ) receive the manual drive.
  • - That the forward and reverse driving and braking is made possible by actuating a shift lever ( 9 ).
  • - That the bearing ( 10 ) of the centering lever ( 6 ) on the wheel spokes ( 11 ) can be attached.
  • - That the lever arm ( 2 ) is adjustable in length ( 12 ).
  • - That the lever arm ( 2 ) when not in use:
    • a) placed on a bracket ( 13 ),
    • b) the entire device can be dismantled by loosening a screw ( 14 ).
  • - That the device can be adapted to different gripping ring diameters ( 16 ) by means of the adjusting part ( 15 ).
2. Handantrieb hach Patentanspruch 1, dadurch gekennzeichnet,
  • - daß die Gummibacken (3) mit Klemmvorrichtung durch einen am Radmittelpunkt (7) gelagerten Freilauf ersetzt werden können (zeichnerisch nicht dargestellt).
2. Manual drive according to claim 1, characterized in
  • - That the rubber jaws ( 3 ) with clamping device can be replaced by a freewheel mounted on the wheel center ( 7 ) (not shown in the drawing).
DE1998119807 1998-05-04 1998-05-04 Hand drive unit for wheelchairs Withdrawn DE19819807A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1998119807 DE19819807A1 (en) 1998-05-04 1998-05-04 Hand drive unit for wheelchairs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1998119807 DE19819807A1 (en) 1998-05-04 1998-05-04 Hand drive unit for wheelchairs

Publications (1)

Publication Number Publication Date
DE19819807A1 true DE19819807A1 (en) 1999-11-11

Family

ID=7866590

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1998119807 Withdrawn DE19819807A1 (en) 1998-05-04 1998-05-04 Hand drive unit for wheelchairs

Country Status (1)

Country Link
DE (1) DE19819807A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20101673U1 (en) * 2001-01-31 2001-08-02 Stiller Heinz Actuation aid for wheelchair users
DE10045102A1 (en) * 2000-09-12 2002-03-21 Guenther Schultze Manually-driven wheelchair for disabled person has handgrip used for transferring drive force to driven wheel
GB2477383A (en) * 2010-01-27 2011-08-03 Rong-Jen Wu Wheelchair driving apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10045102A1 (en) * 2000-09-12 2002-03-21 Guenther Schultze Manually-driven wheelchair for disabled person has handgrip used for transferring drive force to driven wheel
DE10045102B4 (en) * 2000-09-12 2005-02-24 Schultze, Günther, Dipl.-Ing. Wheelchair with manual drive assistance
DE20101673U1 (en) * 2001-01-31 2001-08-02 Stiller Heinz Actuation aid for wheelchair users
DE10111583A1 (en) * 2001-01-31 2002-08-22 Heinz Stiller Spring-loaded grip assisting user to propel wheelchair, is held on handwheel and kept at top by rod, central bearing and counterweight assembly
DE10111583C2 (en) * 2001-01-31 2003-11-06 Heinz Stiller Actuation aid for wheelchair users
GB2477383A (en) * 2010-01-27 2011-08-03 Rong-Jen Wu Wheelchair driving apparatus

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