DE102011011864A1 - Wheelchair, has frame element interconnecting seat surface, seat back and driving wheels, and another frame element supporting front wheels, where former frame element is connected with latter frame element by carbon spring - Google Patents
Wheelchair, has frame element interconnecting seat surface, seat back and driving wheels, and another frame element supporting front wheels, where former frame element is connected with latter frame element by carbon spring Download PDFInfo
- Publication number
- DE102011011864A1 DE102011011864A1 DE102011011864A DE102011011864A DE102011011864A1 DE 102011011864 A1 DE102011011864 A1 DE 102011011864A1 DE 102011011864 A DE102011011864 A DE 102011011864A DE 102011011864 A DE102011011864 A DE 102011011864A DE 102011011864 A1 DE102011011864 A1 DE 102011011864A1
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- Germany
- Prior art keywords
- frame element
- wheelchair
- frame
- seat
- front wheels
- 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.)
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Classifications
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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
- A61G5/1078—Parts, details or accessories with shock absorbers or other suspension arrangements between wheels and frame
-
- 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
- A61G5/1081—Parts, details or accessories with shock absorbers or other suspension arrangements between frame and seat
-
- 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
- A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
- A61G5/124—Rests specially adapted therefor, e.g. for the head or the feet for pelvis or buttocks
-
- 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
- A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
- A61G5/128—Rests specially adapted therefor, e.g. for the head or the feet for feet
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)
- Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
Abstract
Description
Die Erfindung betrifft einen Rollstuhl mit einer Sitzfläche, einer Rückenlehne, zwei Antriebsrädern, zwei Vorderrädern, einem ersten Rahmenelement, das die Sitzfläche, die Rückenlehne und die Antriebsräder miteinander verbindet, und einem zweiten Rahmenelement, das die Vorderräder trägt.The invention relates to a wheelchair having a seat surface, a backrest, two drive wheels, two front wheels, a first frame member interconnecting the seat surface, the backrest and the drive wheels, and a second frame member supporting the front wheels.
Rollstühle sind einer Vielzahl von verschiedenen Rollstuhltypen bekannt, wobei die Unterscheidung des Rollstuhltyps beispielsweise nach der Rahmenbauart als Faltfahrer oder Starrrahmenstuhl, nach der Antriebsart beispielsweise als Greifreifen-, Handhebel- oder Elektrorollstuhl, der Kassenleistung bzw. dem Verordnungstext und besonderen Einsatzmöglichkeiten vorgenommen werden kann.Wheelchairs are a variety of different types of wheelchair known, the distinction of the wheelchair type can be made for example by the frame type as Faltfahrer or rigid frame chair, the type of drive, for example, as handrim, hand lever or electric wheelchair, the cash flow or the regulation text and special applications.
Sehr verbreitet sind die Starrahmenrollstühle, da diese eine leichte Bauweise bei optimaler Kraftübertragung bieten. Einige Starrahmenrollstühle – wie der gattungsbildende Rollstuhl – weisen einen mehrteiligen Rahmen auf, wobei ein erstes Rahmenelement im Wesentlichen die Sitzfläche, die Rückenlehne und die Antriebsräder miteinander verbindet, und ein zweites Rahmenelement die Vorderräder trägt. Daneben können an beiden Rahmenelementen weitere Rollstuhlelemente, z. B. Bremsen, Armlehnen, Seitenteile etc. angebracht sein. Die beiden Rahmenelemente sind mittels Schraubverbindungen starr miteinander verbunden.Very popular are the rigid frame wheelchairs, as they offer a lightweight design with optimal power transmission. Some rigid frame wheelchairs - such as the generic wheelchair - have a multi-part frame, with a first frame member substantially interconnecting the seat, back and drive wheels, and a second frame member supporting the front wheels. In addition, other wheelchair elements, for. As brakes, armrests, side panels, etc. may be appropriate. The two frame elements are rigidly connected to each other by means of screw connections.
Nachteilig an diesen Starrahmenrollstühlen ist jedoch, dass Erschütterungen des Rollstuhls, beispielsweise durch Überfahren von Kantsteinen, Ästen, Steinen etc., manchmal trotz Federung der Räder über den Rahmen auf die Anbauten und letztendlich den Benutzer des Rollstuhls übertragen werden. Besonders nachteilig an der Verwendung eines starren Rahmens ist aber, dass sich beim Überfahren eines Hindernisses beispielsweise die Vorderräder verstellen können, sodass eine vom Fachmann durchzuführende Neujustage notwendig sein kann. Darüber hinaus kommt es bei Verwendung eines starren Rahmens selbst bei federnd gelagerten Rädern auch zu einer stärkeren Beanspruchung der Bereifung und damit einer schnelleren Abnutzung oder sogar lokal begrenzten Beschädigung.A disadvantage of these Starrahmenrollstühlen, however, that vibrations of the wheelchair, for example, by driving over curbs, branches, stones, etc., sometimes despite suspension of the wheels on the frame on the extensions and ultimately the user of the wheelchair are transmitted. A particular disadvantage of using a rigid frame, however, is that when driving over an obstacle, for example, the front wheels can be adjusted so that a re-adjustment to be carried out by a person skilled in the art may be necessary. In addition, it comes with a rigid frame even with spring-mounted wheels to a greater stress on the tires and thus faster wear or even localized damage.
Aufgabe der Erfindung ist es daher, einen weniger störanfälligen und komfortableren Rollstuhl bereit zu stellen.The object of the invention is therefore to provide a less susceptible to interference and more comfortable wheelchair.
Diese Aufgabe wird durch den Rollstuhl mit den Merkmalen von Anspruch 1 gelöst. Die Unteransprüche geben vorteilhafte Ausgestaltungen der Erfindung wieder.This object is achieved by the wheelchair having the features of claim 1. The subclaims reflect advantageous embodiments of the invention.
Grundgedanke der Erfindung ist es, die beiden Rahmenelemente nicht starr miteinander, sondern mittels wenigstens einer Carbonfeder miteinander zu verbinden. Die Carbonfeder ist dabei als die Rahmenelemente verbindendes Verbindungselement so beschaffen, dass auf das eine Rahmenelement wirkende Erschütterungen nicht auf das andere Rahmenelement übertragen werden. Darüber hinaus hat die Carbonfeder die Eigenschaft, nach einer Verformung, beispielsweise einer Torsion, wieder in ihre Ausgangsposition zurückzukehren.The basic idea of the invention is not to rigidly connect the two frame elements with each other, but by means of at least one carbon spring. In this case, the carbon spring is designed as a connecting element connecting the frame elements in such a way that vibrations acting on the one frame element are not transmitted to the other frame element. In addition, the carbon spring has the property after a deformation, such as a twist, to return to their original position.
Dadurch ergibt sich der Vorteil, dass die erfindungsgemäße Ausgestaltung des Rollstuhls zu einem angenehmeren Fahrgefühl führt, wobei auch die an den Rahmenelementen angebauten Rollstuhlelemente, z. B. die Vorderräder, vor Erschütterungen geschützt werden, sodass ein Nachjustieren des Rollstuhls weniger häufig bis überhaupt nicht notwendig wird.This results in the advantage that the inventive design of the wheelchair leads to a pleasant driving feel, with the attached to the frame elements wheelchair elements, eg. As the front wheels are protected from shocks, so readjustment of the wheelchair less frequently, if at all unnecessary.
Insbesondere ist vorgesehen, dass sowohl das erste Rahmenelement als auch das zweite Rahmenelement als beispielsweise aus Rohren gebildete Starrrahmen ausgebildet sind. Alternativ ist es möglich, dass das das erste Rahmenelement durch die Sitzfläche, eine unterhalb der Sitzfläche angeordnete Platte und die Sitzfläche und die Platte miteinander verbindenden Verbindungselementen gebildet ist. Ein derartiger Rollstuhl weicht von der herkömmlichen Rahmenbauweise dadurch ab, dass der Rollstuhl modulartig zusammengestellt werden kann, wobei die Verbindungselemente selbst bevorzugt als Carbonfedern ausgebildet sind.In particular, it is provided that both the first frame element and the second frame element are formed as a rigid frame formed, for example, from tubes. Alternatively, it is possible for the first frame element to be formed by the seat surface, a plate arranged below the seat surface and the connecting elements connecting the seat surface and the plate to one another. Such a wheelchair deviates from the conventional frame construction in that the wheelchair can be assembled like a module, wherein the connecting elements themselves are preferably designed as carbon springs.
Besonders bevorzugt ist das zweite Rahmenelement jedoch in jedem Fall als Starrrahmen ausgebildet, sodass auch die Ausbildung von Hybridrollstühlen möglich ist, also Rollstühlen, die in Bezug auf ihre Sitzfläche keinen Starrrahmenaufbau, sondern die vorgenannte Alternative aufweisen, jedoch als die Vorderräder tragendes zweites Rahmenelement einen starren Rahmen aufweisen.Particularly preferably, however, the second frame member is formed in each case as a rigid frame, so that the formation of hybrid wheelchairs is possible, so wheelchairs, with respect to their seat not rigid frame structure, but the aforementioned alternative, but as the front wheels bearing second frame member a rigid Have frame.
Ferner ist auch bevorzugt ein Fußbrett vorgesehen, das am zweiten Rahmenelement befestigt ist.Furthermore, a footboard is preferably also provided which is fastened to the second frame element.
Schließlich kann auch ein Stützrad vorgesehen sein, das bevorzugt am ersten Rahmenelement befestigt ist.Finally, a support wheel can be provided, which is preferably attached to the first frame member.
Die Erfindung wird anhand eines in den Zeichnungen dargestellten besonders bevorzugt ausgestalteten Ausführungsbeispiels näher erläutert. Es zeigen:The invention will be explained in more detail with reference to a particularly preferred embodiment shown in the drawings. Show it:
Das zweite Rahmenelement
Erfindungsgemäß ist es möglich das zweite Rahmenelement
Bei dem den Zeichnungen zugrunde liegenden Prototypen konnte auf einem Teststand unter hoher Belastung eine deutlich verminderte Abnutzung der Bereifung der Antriebsräder wie auch der Vorderräder beobachtet werden, die auf das Vorhandensein der die Rahmenelemente miteinander verbindenden Carbonfedern zurückzuführen ist.In the prototypes underlying the drawings could be observed on a test stand under high load significantly reduced wear of the tires of the drive wheels as well as the front wheels, which is due to the presence of the frame members interconnecting carbon springs.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011011864.0A DE102011011864B4 (en) | 2011-02-21 | 2011-02-21 | wheelchair |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011011864.0A DE102011011864B4 (en) | 2011-02-21 | 2011-02-21 | wheelchair |
Publications (2)
Publication Number | Publication Date |
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DE102011011864A1 true DE102011011864A1 (en) | 2012-08-23 |
DE102011011864B4 DE102011011864B4 (en) | 2014-04-03 |
Family
ID=46604942
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102011011864.0A Expired - Fee Related DE102011011864B4 (en) | 2011-02-21 | 2011-02-21 | wheelchair |
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DE (1) | DE102011011864B4 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6325398B1 (en) * | 1999-03-22 | 2001-12-04 | Tecodom Di Banzi Mario | Manually operated ergonomic wheelchair |
DE20205906U1 (en) * | 2002-04-16 | 2002-07-25 | Reha Technik Moeller Gmbh | Seat shell with two-part backrest |
US6796568B2 (en) * | 2002-05-01 | 2004-09-28 | Pride Mobility Products Corporation | Suspension system for a wheelchair |
US20050067807A1 (en) * | 2002-02-11 | 2005-03-31 | Michael Harcourt | Wheelchair |
US20070018443A1 (en) * | 2005-07-19 | 2007-01-25 | John Wilmot | Off-road wheelchair |
WO2007098571A1 (en) * | 2006-02-28 | 2007-09-07 | Denis Matte | Personal compact cart |
-
2011
- 2011-02-21 DE DE102011011864.0A patent/DE102011011864B4/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6325398B1 (en) * | 1999-03-22 | 2001-12-04 | Tecodom Di Banzi Mario | Manually operated ergonomic wheelchair |
US20050067807A1 (en) * | 2002-02-11 | 2005-03-31 | Michael Harcourt | Wheelchair |
DE20205906U1 (en) * | 2002-04-16 | 2002-07-25 | Reha Technik Moeller Gmbh | Seat shell with two-part backrest |
US6796568B2 (en) * | 2002-05-01 | 2004-09-28 | Pride Mobility Products Corporation | Suspension system for a wheelchair |
US20070018443A1 (en) * | 2005-07-19 | 2007-01-25 | John Wilmot | Off-road wheelchair |
WO2007098571A1 (en) * | 2006-02-28 | 2007-09-07 | Denis Matte | Personal compact cart |
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DE102011011864B4 (en) | 2014-04-03 |
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R012 | Request for examination validly filed | ||
R016 | Response to examination communication | ||
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final | ||
R020 | Patent grant now final |
Effective date: 20150106 |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |