DE3707087A1 - Bicycle-related propulsion component for wheelchairs - Google Patents
Bicycle-related propulsion component for wheelchairsInfo
- Publication number
- DE3707087A1 DE3707087A1 DE19873707087 DE3707087A DE3707087A1 DE 3707087 A1 DE3707087 A1 DE 3707087A1 DE 19873707087 DE19873707087 DE 19873707087 DE 3707087 A DE3707087 A DE 3707087A DE 3707087 A1 DE3707087 A1 DE 3707087A1
- Authority
- DE
- Germany
- Prior art keywords
- drive part
- part according
- wheelchair
- wheelchairs
- bottom bracket
- 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- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K7/00—Freight- or passenger-carrying cycles
-
- 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
- A61G5/003—Wheelchairs attached to a cycle steerable by an attendant
Landscapes
- Health & Medical Sciences (AREA)
- Nursing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motorcycle And Bicycle Frame (AREA)
Abstract
Description
Nach heutigem Stand der Technik können Rollstühle durch Muskel kraft-getriebene, Fahrrad-verwandte Antriebsteile bewegt wer den, die schiebend hinter dem Rollstuhl angeordnet sind. Um Steuerausschläge nicht zu behindern, wird der Tretkurbelantrieb hinter den Rollstuhlhaupträdern angeordnet. Zumindest dann, wenn die Konstruktion so ausgelegt ist, daß der Rollstuhl , auch wenn das Antriebsteil montiert ist, auf vier Rädern läuft, also nicht rückwärtig gekippt ist, ergeben sich ungünstige Verhältnisse für die Körperhaltung des Fahrers (= Betreuer). Die Rollstuhl griffe sind im Vergleich zum Fahrrad recht niedrig. Ihr hori zontaler Abstand zum Tretlager ist aber groß, so daß der Sattel steil über dem Tretlager angeordnet wird, um den Abstand Sattel - Roll stuhlgriffe nicht zu groß werden zu lassen. Eine solche Konstel lation ist, wie von Fahrrädern her bekannt, unbequem und er müdend. Da die steile Sitzposition einen hohen Sattel bedingt, wird die Höhendifferenz Sattel - Rollstuhlgriffe noch zusätz lich ungünstig beeinflußt, sofern man auf spezielle Lenkeran bauten am Rollstuhl verzichtet, die eine schnelle Verwandlung von Rollstuhl zu Rollstuhl-Fahrrad behindern würden.According to the current state of the art, wheelchairs can be moved by muscle-powered, bicycle-related drive parts who are sliding behind the wheelchair. In order not to hinder tax fluctuations, the pedal crank drive is arranged behind the main wheelchair wheels. At least if the construction is designed so that the wheelchair, even when the drive part is mounted, runs on four wheels, i.e. does not tilt backwards, this results in unfavorable conditions for the driver's posture (= supervisor). The wheelchair handles are quite low compared to the bike. Your horizontal distance to the bottom bracket is large, so that the saddle is placed steeply above the bottom bracket so that the distance between saddle and wheelchair handles does not become too large. Such a constellation is, as known from bicycles, uncomfortable and tiring. Since the steep seating position requires a high saddle, the height difference between saddle and wheelchair grips is also adversely affected, provided that special handlebar attachments on the wheelchair are dispensed with, which would hinder a quick change from wheelchair to wheelchair bicycle.
Die Baulänge des Antriebsteiles verursacht entsprechendes Ge wicht und macht es notwendig, das Antriebsteil seinerseits nochmals teilbar auszuführen, damit die Teile in den Koffer raum eines PKW passen.The overall length of the drive part causes corresponding Ge important and makes it necessary for the drive part in turn again divisible so that the parts in the case space of a car.
Der Erfindung liegen zwei Aufgaben zugrunde:The invention is based on two tasks:
Erstens sollte ein Muskelkraft-betreibbares Antriebsteil für Rollstühle so gestaltet werden, daß das auf fünf Rädern rollende Gesamtgefährt dem Fahrer eine ergonomisch befriedi gende Sitzposition ermöglicht, die ihm gestattet in kraftvollem Schiebetritt das Gefährt bequem zu fahren. Dies ist in Anbe tracht des hohen Fahrzeuggewichtes mit zwei Personen, von denen nur einer die Antriebsleistung erbringen muß, wesentlich.First, a muscle power-operable drive part for Wheelchairs are designed to be on five wheels the entire rolling vehicle provides the driver with ergonomic satisfaction suitable seating position, which allows him in powerful Sliding pedal to drive the vehicle comfortably. This is in Anbe costume of the high vehicle weight with two people, one of whom only one has to provide the drive power, essential.
Zweitens sollte das Antriebsteil so klein sein, daß es unzer legt zusammen mit einem handelsüblichen Faltrollstuhl im Koffer raum eines Mittelklasse-PKW Platz findet.Secondly, the drive part should be so small that it is not less puts in the case together with a standard folding wheelchair space for a mid-range car.
Diese Aufgaben werden erfindungsgemäß dadurch gelöst, daß der Tretkurbelantrieb weit nach vorne in den Bereich zwischen die Rollstuhlhaupträder ragend angeordnet wird. Hierdurch ergibt sich eine wesentlich kürzere Bauform mit entsprechend kurzem Radstand, der auch bei kleineren Lenkausschlägen ausreichende Wendigkeit gewährleistet. Durch Verwendung eines relativ klei nen Hinterrades (ca. 20 Zoll) und möglichst kurzem Abstand Hinterachse - Tretlager wird der Radstand zusätzlich verkürzt.According to the invention, these objects are achieved in that the pedal crank drive is arranged projecting far forward into the area between the main wheelchair wheels. This results in a significantly shorter design with a correspondingly short wheelbase, which ensures sufficient maneuverability even with smaller steering deflections. The wheelbase is also shortened by using a relatively small rear wheel (approx. 20 inches) and the shortest possible distance between the rear axle and the bottom bracket.
Die Anordnung des Tretkurbelantriebes weit vorne führt zu einer starken Neigung der Verbindungslinie Tretlager - Sattel. Diese wiederum ist Voraussetzung für den angestrebten ergonomischen Schiebetritt.The arrangement of the pedal crank drive far forward leads to a strong inclination of the connection line bottom bracket - saddle. This in turn is a prerequisite for the desired ergonomic sliding step.
Die vorgeschlagene Anordnung ermöglicht eine Sattelposition im vertikalen Bereich über der Hinterachse. Dadurch werden die Auf lagekräfte des Antriebteils am Rollstuhl gering gehalten. Dies wiederum schont die Anschlußmechanik und den Rollstuhl. The proposed arrangement enables a saddle position in the vertical area above the rear axle. This will make the up position forces of the drive part on the wheelchair kept low. This again protects the connection mechanism and the wheelchair.
Die Neigung der Verbindungslinie Tretlager - Sattel kann kon struktiv sowohl durch ein entsprechend geneigtes Sattelrohr als auch bei steilerem Sattelrohr durch eine Sattelstütze mit nach hinten auskragendem, federndem Arm entsprechend P 34 45 309.1 erreicht werden.The inclination of the bottom bracket - saddle connection line can be achieved structurally both with an appropriately inclined seat tube and, in the case of a steeper seat tube, with a seat post with a resilient arm projecting to the rear in accordance with P 34 45 309.1.
Nach geringer Einübungszeit lassen sich mit dem recht kurzem Ge fährt auch besonders enge Kurven fahren. Hierzu wird bei ausrei chendem Schwung während eines größeren Lenkausschlages das kur veninnere Tretpedal hinten gehalten. Für ungeübte Fahrer hin gegen ist es ratsam, die Speichen auf den Innenseiten der Roll stuhlhaupträder mit handelsüblichen Schutzscheiben abzudecken, um zu verhindern, daß Pedal oder Fuß in die Speichen geraten können.After a short period of practice, the rather short Ge also drives particularly tight corners. For this, at ausrei cure swing during a large steering wheel deflection inner pedal pedal held at the rear. For inexperienced drivers against it is advisable to roll the spokes on the inside of the roll to cover main chair wheels with standard protective screens, to prevent the pedal or foot from getting caught in the spokes can.
Das abgekoppelte Antriebsteil erfindungsgemäßer Bauform ist nicht oder nur unwesentlich länger als ein Faltrollstuhl. Da es zudem bedeutend schmaler ist, läßt es sich problemlos mit dem Faltrollstuhl im Kofferraum eines Mittelklasse-PKW verstauen, ohne daß es weiter zerlegt werden braucht.The decoupled drive part is of the design according to the invention not or only slightly longer than a folding wheelchair. Because it is also significantly narrower, it can be easily with the Stow the wheelchair in the trunk of a mid-size car, without it having to be dismantled further.
Rollstuhl-Fahrrad-Kombinationen sollten grundsätzlich nur mit mäßiger Geschwindigkeit gefahren werden. Um das Fahrverhalten in Kurven zu verbessern, kann man konstruktiv dafür sorgen, daß sich Antriebsteil und Fahrer bei Lenkausschlägen zur Kurveninnen seite neigen (= in die Kurve legen). Dies wird erreicht, indem die Lenkkopfachse des Antriebteiles oben nach vorne geneigt an geordnet wird.Wheelchair-bike combinations should only be used be driven at moderate speed. To the driving behavior To improve in bends, you can constructively ensure that drive part and driver when steering deflections to the inside of the curve tilt the side (= lay in the curve). This is achieved by the steering head axis of the drive unit is inclined at the top towards the front is ordered.
Für die Verwendung des Antriebteiles an Rollstühlen verschie dener Baumuster, kann es sinnvoll sein, das Antriebteil zwischen Lenkkopf und Tretlager in seiner Länge verstellbar auszuführen.For use of the drive part on wheelchairs model, it can be useful to place the drive part between Steering head and bottom bracket adjustable in length.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19873707087 DE3707087A1 (en) | 1987-03-05 | 1987-03-05 | Bicycle-related propulsion component for wheelchairs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19873707087 DE3707087A1 (en) | 1987-03-05 | 1987-03-05 | Bicycle-related propulsion component for wheelchairs |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3707087A1 true DE3707087A1 (en) | 1988-09-15 |
Family
ID=6322347
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19873707087 Withdrawn DE3707087A1 (en) | 1987-03-05 | 1987-03-05 | Bicycle-related propulsion component for wheelchairs |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3707087A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4228994A1 (en) * | 1992-08-31 | 1994-03-03 | Siegfried Schramm | Load transport vehicle, in particular load transport bicycle |
FR2767775A1 (en) * | 1997-08-28 | 1999-03-05 | Jdg | Pedal cycle connected to infant push chair |
DE19843609A1 (en) * | 1998-09-23 | 2000-03-30 | Michael Stams | Wheelchair tandem, comprising of wheelchair in front and attached trailer equipped with pedals, operated by second person |
FR2842487A1 (en) * | 2002-07-22 | 2004-01-23 | Paul Ducourret | Accessory for attaching to pushchair, comprises wheel mounted frame with saddle to sit on |
DE102011113851A1 (en) | 2011-09-21 | 2013-03-21 | Michael Sagemüller | Bike trailer for transportation of wheelchair user to towing vehicle, has front and rear retention devices provided for releasable fastening of ends of foot struts and arranged in end regions of support tubes in driving direction |
-
1987
- 1987-03-05 DE DE19873707087 patent/DE3707087A1/en not_active Withdrawn
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4228994A1 (en) * | 1992-08-31 | 1994-03-03 | Siegfried Schramm | Load transport vehicle, in particular load transport bicycle |
FR2767775A1 (en) * | 1997-08-28 | 1999-03-05 | Jdg | Pedal cycle connected to infant push chair |
DE19843609A1 (en) * | 1998-09-23 | 2000-03-30 | Michael Stams | Wheelchair tandem, comprising of wheelchair in front and attached trailer equipped with pedals, operated by second person |
FR2842487A1 (en) * | 2002-07-22 | 2004-01-23 | Paul Ducourret | Accessory for attaching to pushchair, comprises wheel mounted frame with saddle to sit on |
DE102011113851A1 (en) | 2011-09-21 | 2013-03-21 | Michael Sagemüller | Bike trailer for transportation of wheelchair user to towing vehicle, has front and rear retention devices provided for releasable fastening of ends of foot struts and arranged in end regions of support tubes in driving direction |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |