DE29804597U1 - Drive device for wheelchair bicycles - Google Patents

Drive device for wheelchair bicycles

Info

Publication number
DE29804597U1
DE29804597U1 DE29804597U DE29804597U DE29804597U1 DE 29804597 U1 DE29804597 U1 DE 29804597U1 DE 29804597 U DE29804597 U DE 29804597U DE 29804597 U DE29804597 U DE 29804597U DE 29804597 U1 DE29804597 U1 DE 29804597U1
Authority
DE
Germany
Prior art keywords
wheelchair
bicycle
drive
drive device
bike
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE29804597U
Other languages
German (de)
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 DE29804597U priority Critical patent/DE29804597U1/en
Publication of DE29804597U1 publication Critical patent/DE29804597U1/en
Priority to DE19829129A priority patent/DE19829129C2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A61G5/023—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 directly on hubs or axis
    • 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
    • A61G5/026—Cranks or hand wheels
    • 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
    • A61G5/027—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person by using auxiliary detachable mechanisms
    • 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
    • A61G5/1051—Arrangements for steering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M1/00—Rider propulsion of wheeled vehicles
    • B62M1/14—Rider propulsion of wheeled vehicles operated exclusively by hand power

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Transmission Devices (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Description

Antriebsvorrichtung fur RollstuhlfahrräderDrive device for wheelchair bicycles

Die Erfindung betrifft einen Antriebsmechanismus zur Kraftübertragung bei einem Rollstuhlfahrrad.The invention relates to a drive mechanism for power transmission in a wheelchair bicycle.

Rollstuhlfahrräder sind Kombinationen, bestehend aus einem normalen Rollstuhl und einem sogenannten Vorsatzfahrrad, das an den Rollstuhl befestigt wird. Ein so gebildetes Rollstuhlfahrrad, das mit den Händen angetrieben und gelenkt wird, ermöglicht es dem Behinderten größere Strecken wesentlich leichter zu bewältigen.Wheelchair bikes are combinations consisting of a normal wheelchair and a so-called attachment bike that is attached to the wheelchair. A wheelchair bike constructed in this way, which is driven and steered by hand, enables the disabled person to cover longer distances much more easily.

Je nach Modell wird bei bekannten Rollstuhlfahrrädern die durch Muskelkraft erzeugte Antriebskraft mittels Kette oder Zahnriemen auf das Rad des Vorsatzfahrrads übertragen. Die nötige Übersetzung liefert dabei üblicherweise eine mehrstufige Kettenoder Nabenschaltung.Depending on the model, the drive force generated by muscle power on known wheelchair bikes is transferred to the wheel of the front bike by means of a chain or toothed belt. The necessary gear ratio is usually provided by a multi-stage derailleur or hub gear.

Solche nach dem Stand der Technik bekannte Antriebsvorrichtungen weisen Nachteile auf:Such drive devices known from the state of the art have disadvantages:

Im Fall einer Kettenschaltung kann die Kette beim Schaltvorgang durch die bei einem Rollstuhlfahrrad bedingte große Kettenlänge abspringen. Dadurch besteht Verletzungsgefahr für den Rollstuhlfahrer, da sich das Kettenblatt im Kopfbereich befindet. Die Kettenlinie verläuft im Beinbereich des Rollstuhlfahrers und kann daher beim Lenken stören. Die Kleidung kann mit der Kette in Kontakt kommen und verschmutzen oder sich sogar darin verfangen. Soll das Fahrrad transportiert werden, müssen z.B. im Auto die Polster vor Ölverschmutzung durch die Kette geschützt werden. Ein aufwendiger Kettenschutz, z.B. durch entsprechende Ummantelung, ist hier also unbedingt erforderlich.In the case of derailleur gears, the chain can come off during gear shifting due to the long chain length on a wheelchair bike. This poses a risk of injury to the wheelchair user as the chainring is in the head area. The chain line runs in the leg area of the wheelchair user and can therefore interfere with steering. Clothing can come into contact with the chain and become dirty or even caught in it. If the bike is to be transported, for example in a car, the upholstery must be protected from oil contamination from the chain. A complex chain guard, e.g. with an appropriate covering, is therefore absolutely necessary here.

Der Riemenantrieb ist weniger problematisch was Verschmutzung betrifft, jedoch kann auch hier der Riemen beim Lenken mit dem Fahrradrahmen kollidieren und ist im Beinbereich störend im Weg. Durch die große Riemenlänge geht zudem wertvolle Muskelkraft verloren.The belt drive is less of a problem when it comes to dirt, but here too the belt can collide with the bike frame when steering and is in the way in the leg area. The long belt also means valuable muscle power is lost.

Aufgabe der Erfindung ist es, eine geeignete Antriebsvorrichtung für ein Rollstuhlfahrrad zu schaffen, die die genannten Nachteile vermeidet.The object of the invention is to provide a suitable drive device for a wheelchair bicycle which avoids the aforementioned disadvantages.

Diese Aufgabe wird bei einem Rollstuhlfahrrad gemäß Oberbegriff des Anspruchs durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.This object is achieved in a wheelchair bicycle according to the preamble of the claim by the characterizing features of claim 1.

Die erfindungsgemäße Vorrichtung besteht aus einem Kardanantrieb, über den die Kraftübertragung auf das Antriebsrad des Vorsatzfahrrads erfolgt.The device according to the invention consists of a cardan drive, via which the power is transmitted to the drive wheel of the front bicycle.

Ein solcher Kardanantrieb weist zahlreiche Vorteile für das Konzept eines Rollstuhlfahrrades auf:Such a cardan drive has numerous advantages for the concept of a wheelchair bike:

Es besteht keine Verletzungsgefahr, da praktisch keine beweglichen Teile freiliegen. Die Lenkung wird durch die erfindungsgemäße Antriebsvorrichtung nicht behindert. Die geschlossene Antriebsvorrichtung ist sauber und wartungsfrei.There is no risk of injury as there are practically no exposed moving parts. The steering is not hindered by the drive device according to the invention. The closed drive device is clean and maintenance-free.

Ein bevorzugtes Ausfuhrungsbeispiel der Erfindung ist in der beigefügten Zeichnung dargestellt und wird im folgenden näher beschrieben.A preferred embodiment of the invention is shown in the accompanying drawing and is described in more detail below.

Figur 1 zeigt eine Seitenansicht des Rollstuhlfahrrades mit erfindungsgemäßem Kardanantrieb.Figure 1 shows a side view of the wheelchair bicycle with cardan drive according to the invention.

Das Rollstuhlfahrrad wird wie üblich über eine Handkurbel (3) angetrieben. Die Handkraft wird über ein oberes Getriebe auf eine Kardanwelle (4) übertragen. Über ein unteres Getriebe wird die Kraft von der Kardanwelle (4) auf das Antriebsrad (5) des Vorsatzfahrrads (2) übertragen.The wheelchair bike is driven as usual via a hand crank (3). The hand power is transferred via an upper gear to a cardan shaft (4). The power is transferred from the cardan shaft (4) to the drive wheel (5) of the front bike (2) via a lower gear.

In der bevorzugten Ausfuhrungsform verläuft die Kardanwelle im Rahmen des Vorsatzfahrrads, und überträgt das Antriebsmoment vom oberen zum unteren Getriebe. Bei einem runden Rahmenprofil kann das Mantelrohr der Kardanwelle direkt mit in die Rahmenkonstruktion eingebunden werden. Dies ermöglicht eine sehr kompakte Bauform. Damit wird ein großer Lenkeinschlag ermöglicht, ohne das Antriebsteile kollidieren.In the preferred design, the cardan shaft runs in the frame of the front bike and transfers the drive torque from the upper to the lower gear. With a round frame profile, the casing tube of the cardan shaft can be integrated directly into the frame construction. This enables a very compact design. This enables a large steering angle without drive parts colliding.

Für eine Kraftübersetzung kann eine übliche Schaltung in ein (oder beide) Getriebe integriert werden. Vorzugsweise wird das Vorderrad über eine Nabengangschaltung angetrieben. Die Nabengangschaltung liefert dabei die entsprechende Übersetzung und bietet auch die Möglichkeit zur Integration einer Rücktrittsbremse.For power transmission, a standard gear system can be integrated into one (or both) gearboxes. Preferably, the front wheel is driven via a hub gear system. The hub gear system provides the appropriate gear ratio and also offers the option of integrating a coaster brake.

Claims (2)

Schutzansprüche:Protection claims: 1) Vorrichtung zum Antrieb eines Rollstuhlfahrrades, welches aus einem Rollstuhl (1) und einem Vorsatzfahrrad (2) besteht, wobei das Vorsatzfahrrad (2) eine Handkurbel (3) aufweist, mit der über eine Kraftübertragung ein Antriebsrad (5) bewegt wird,1) Device for driving a wheelchair bicycle, which consists of a wheelchair (1) and an attachment bicycle (2), wherein the attachment bicycle (2) has a hand crank (3) with which a drive wheel (5) is moved via a power transmission, dadurch gekennzeichnet, daß die Kraftübertragung durch eine Kardanwelle (4) erfolgt.characterized in that the power transmission takes place via a cardan shaft (4). 2) Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Kardanwelle (4) im Rahmen des Vorsatzfahrrads verläuft.2) Device according to claim 1, characterized in that the cardan shaft (4) runs in the frame of the front bicycle.
DE29804597U 1998-03-14 1998-03-14 Drive device for wheelchair bicycles Expired - Lifetime DE29804597U1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE29804597U DE29804597U1 (en) 1998-03-14 1998-03-14 Drive device for wheelchair bicycles
DE19829129A DE19829129C2 (en) 1998-03-14 1998-06-30 Drive device for wheelchair bicycles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29804597U DE29804597U1 (en) 1998-03-14 1998-03-14 Drive device for wheelchair bicycles

Publications (1)

Publication Number Publication Date
DE29804597U1 true DE29804597U1 (en) 1998-06-04

Family

ID=8054162

Family Applications (2)

Application Number Title Priority Date Filing Date
DE29804597U Expired - Lifetime DE29804597U1 (en) 1998-03-14 1998-03-14 Drive device for wheelchair bicycles
DE19829129A Expired - Fee Related DE19829129C2 (en) 1998-03-14 1998-06-30 Drive device for wheelchair bicycles

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE19829129A Expired - Fee Related DE19829129C2 (en) 1998-03-14 1998-06-30 Drive device for wheelchair bicycles

Country Status (1)

Country Link
DE (2) DE29804597U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3100940A1 (en) 2015-06-03 2016-12-07 Otto Bock Mobility Solutions GmbH Brake lever assembly for a vehicle with a crank drive

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10028338C2 (en) * 2000-06-08 2003-03-20 J & A Saettele Gmbh Mobile header
DE10102855C1 (en) * 2001-01-23 2002-07-25 Rolf Kuhlmann Pulley, for wheel-chair, has coupling, frame, pulley wheel , foot and hand crank drives and steering rod
EP1628615A1 (en) * 2003-05-30 2006-03-01 Izumi, D.O.O. Supplementary driving mechanism of the muscle-driven vehicle for accelerated rehabilitation of a paralyzed arm
DE102013017052A1 (en) * 2013-10-15 2015-04-16 Glück Mechatronic Gmbh Bicycle drive with bevel gear
KR200486835Y1 (en) * 2016-11-30 2018-07-05 서울과학기술대학교 산학협력단 Wheelchair equipped with manual pedal

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4428714C2 (en) * 1994-08-12 1997-08-28 Rolf Kuhlmann Coupling device for traction devices on a wheelchair
DE19541966C2 (en) * 1995-11-10 1999-11-11 Wolf Elisabeth Maria Transportable walking aid

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3100940A1 (en) 2015-06-03 2016-12-07 Otto Bock Mobility Solutions GmbH Brake lever assembly for a vehicle with a crank drive
DE102015006888A1 (en) 2015-06-03 2016-12-08 Otto Bock Mobility Solutions Gmbh Brake lever assembly for a vehicle with a crank drive
DE102015006888B4 (en) 2015-06-03 2018-07-12 Otto Bock Mobility Solutions Gmbh Brake lever assembly for a vehicle with a crank drive

Also Published As

Publication number Publication date
DE19829129C2 (en) 2000-08-24
DE19829129A1 (en) 1999-09-16

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 19980716

R156 Lapse of ip right after 3 years

Effective date: 20020101