EP0495193A1 - Wheelchair - Google Patents
Wheelchair Download PDFInfo
- Publication number
- EP0495193A1 EP0495193A1 EP91120881A EP91120881A EP0495193A1 EP 0495193 A1 EP0495193 A1 EP 0495193A1 EP 91120881 A EP91120881 A EP 91120881A EP 91120881 A EP91120881 A EP 91120881A EP 0495193 A1 EP0495193 A1 EP 0495193A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- parts
- side parts
- guides
- another
- wheelchair
- 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.)
- Granted
Links
Images
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
- A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
-
- 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
- A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
- A61G5/0808—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction
- A61G5/0816—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding side to side, e.g. reducing or expanding the overall width of the wheelchair
- A61G5/0825—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding side to side, e.g. reducing or expanding the overall width of the wheelchair comprising a scissor-type frame, e.g. having pivoting cross bars for enabling folding
-
- 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 innovation relates to a wheelchair of the type mentioned in the preamble of claim 1.
- a wheelchair of the type in question is known from the company publication "MEYRA wheelchairs and rehabilitation aids" from MEYRA Wilhelm Meyer GmbH & Co. KG, Meyra-Ring, D-4925 Kalletal-Kalldorf. If such a wheelchair is to be folded up from the use position into the non-use position, the side parts are generally pressed together by means of handles attached to them at the top rear, which are normally used to move the wheelchair. This is often difficult because of the frictional forces in the telescopic guides, which are particularly aggravated by jamming and jamming. Folding is therefore often only possible by pulling up the upper parts of the side parts, which requires special handling or a change of grip.
- the innovation is based on the task of creating a wheelchair of the type in question, in which the folding of the side parts from the use position into the non-use position is facilitated.
- the basic idea of this teaching is to reduce the frictional forces in the telescopic guides, in particular, in that the top parts are each supported by a contact roller on contact tubes, which are located on the bottom parts and extend parallel to the guides in the range of motion of the top parts.
- these roles absorb a substantial part of the compressive forces and transmit them in a rolling manner and thus with vanishing frictional forces.
- the friction forces in the guides are therefore significantly reduced, so that the folding is facilitated overall.
- the contact pipes are expediently extended upwards and curved backwards, where they form or have handles.
- the investment pipes therefore do not represent any additional effort, and the effort for the investment rollers is very low. You can be conveniently located at the end of a short tube that extends in extension of the associated rotatably held tube part.
- the wheelchair shown schematically in FIGS. 1 and 2 has two side parts 1 and 2, each consisting of a lower part 3 or 4 and an upper part 5 or 6 exist, which, as can be seen in particular from FIG. 2, are movably connected to one another in the vertical direction by telescopic guides.
- the telescopic guides consist of tubes 7 to 10, which are held vertically displaceably in tubes 11 to 14 of the lower parts 3 and 4.
- the upper ends of the tubes 7 and 8 or 9 and 10 are welded to bushings 15 and 16 or 17 and 18, the axis of which extends transversely to the guide direction of the tubes 7 to 10 and in which the ends of tube parts 19 and 20 engage rotatably.
- wheels 31 to 34 which are designed and arranged in a known manner, which need not be explained in more detail.
- the rear, vertical tubes of the lower parts 3 and 4 form in their upper region bearing tubes 35 and 36, on the inside of which bearing rollers 37 and 38 rest, which are located at the outer ends of the bushings 16 and 18.
- the contact tubes 35 and 36 continue upwards over the guide area and are curved or angled backwards so that they form handles 39 and 40.
- a seat 41 in the form of a flexible belt which wraps around the pipe parts 19 and 20 with its edges.
- the rough chair is in its position of use, in which the side parts 1 and 2 have their maximum distance essentially determined by the seat 41, in which the Bars 27 and 28 have their maximum spread.
- the handles 39 and 40 are moved towards one another, the abutment rollers 37 and 38 rolling inside on the abutment tubes 35 and 36 and thus all of the essential ones due to the folding Forces are transmitted largely smoothly, with the result that the wheelchair can be folded from the use position into the non-use position without great effort.
- the side parts 1 and 2 and their respective lower parts 3 and 4 and upper parts 5 and 6 do not necessarily have to consist of bent or welded steel tubes. It can also be flat, plate-shaped side parts, and the guides for the two respectively associated lower and upper parts can also be designed differently in each person skilled in the art.
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)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
- Motorcycle And Bicycle Frame (AREA)
- Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
Abstract
Description
Die Neuerung betrifft einen Rollstuhl der im Oberbegriff des Anspruchs 1 genannten Art.The innovation relates to a wheelchair of the type mentioned in the preamble of
Durch die Firmendruckschrift "MEYRA Rollstühle und Rehabilitationsmittel" der Firma MEYRA Wilhelm Meyer GmbH & Co. KG, Meyra-Ring, D-4925 Kalletal-Kalldorf, ist ein Rollstuhl der betreffenden Art bekannt. Soll ein derartiger Rollstuhl aus der Gebrauchsstellung in die Nichtgebrauchsstellung zusammengefaltet werden, so werden die Seitenteile in der Regel mittels an ihnen oben hinten angebrachter Handgriffe, die normalerweise zum Bewegen des Rollstuhles dienen, zusammengedrückt. Dies bereitet häufig wegen der Reibkräfte in den teleskopartigen Führungen, die insbesondere durch Verklemmen und Verkanten noch verstärkt werden, Schwierigkeiten. Ein Zusammenfalten ist daher häufig nur durch Hochziehen der Oberteile der Seitenteile möglich, was eine besondere Handhabung bzw. ein Umgreifen erforderlich macht.A wheelchair of the type in question is known from the company publication "MEYRA wheelchairs and rehabilitation aids" from MEYRA Wilhelm Meyer GmbH & Co. KG, Meyra-Ring, D-4925 Kalletal-Kalldorf. If such a wheelchair is to be folded up from the use position into the non-use position, the side parts are generally pressed together by means of handles attached to them at the top rear, which are normally used to move the wheelchair. This is often difficult because of the frictional forces in the telescopic guides, which are particularly aggravated by jamming and jamming. Folding is therefore often only possible by pulling up the upper parts of the side parts, which requires special handling or a change of grip.
Der Neuerung liegt die Aufgabe zugrunde, einen Rollstuhl der betreffenden Art zu schaffen, bei dem das Zusammenfalten der Seitenteile aus der Gebrauchsstellung in die Nichtgebrauchsstellung erleichtert ist.The innovation is based on the task of creating a wheelchair of the type in question, in which the folding of the side parts from the use position into the non-use position is facilitated.
Die der Neuerung zugrundeliegende Aufgabe wird durch die im Kennzeichen des Anspruchs 1 angegebene Lehre gelöst.The task underlying the innovation is achieved by the teaching specified in the characterizing part of
Der Grundgedanke dieser Lehre besteht darin, die Reibkräfte in den insbesondere teleskopartigen Führungen dadurch zu verringern, daß die Oberteile jeweils durch eine Anlagerolle an Anlagerohren abgestützt sind, die sich an den Unterteilen befinden und sich parallel zu den Führungen im Bewegungsbereich der Oberteile erstrecken. Diese Rollen nehmen beim Zusammenfalten einen wesentlichen Teil der Zusammendrückkräfte auf und übertragen diese rollend und somit mit verschwindenden Reibkräften. Die Reibkräfte in den Führungen werden daher wesentlich verringert, so daß insgesamt das Zusammenfalten erleichtert wird.The basic idea of this teaching is to reduce the frictional forces in the telescopic guides, in particular, in that the top parts are each supported by a contact roller on contact tubes, which are located on the bottom parts and extend parallel to the guides in the range of motion of the top parts. When folded, these roles absorb a substantial part of the compressive forces and transmit them in a rolling manner and thus with vanishing frictional forces. The friction forces in the guides are therefore significantly reduced, so that the folding is facilitated overall.
Die Anlagerohre sind zweckmäßigerweise nach oben verlängert und nach hinten gekrümmt, wo sie Handgriffe bilden oder aufweisen. Die Anlagerohre stellen somit keinen Mehraufwand dar, und der Aufwand für die Anlagerollen ist sehr gering. Sie können sich in zweckmäßiger Weise jeweils am Ende eines kurzen Rohres befinden, das sich in Verlängerung des zugehörigen, drehbar gehaltenen Rohrteiles erstreckt.The contact pipes are expediently extended upwards and curved backwards, where they form or have handles. The investment pipes therefore do not represent any additional effort, and the effort for the investment rollers is very low. You can be conveniently located at the end of a short tube that extends in extension of the associated rotatably held tube part.
Anhand der Zeichnung soll die Erfindung an einem Ausführungsbeispiel näher erläutert werden.
- Fig. 1
- zeigt schematisch und perspektivisch ein Ausführungsbeispiel eines Rollstuhls gemäß der Neuerung in Gebrauchsstellung,
- Fig. 2
- zeigt den Rollstuhl gemäß Fig. 1 in Nichtgebrauchsstellung,
- Fig. 3
- zeigt einen vergrößerten Ausschnitt aus Fig. 1 im Bereich der Anlagerolle, und
- Fig. 4
- zeigt einen vergrößerten Ausschnitt ähnlich Fig. 3 aus Fig. 2 im Bereich der Anlagerolle.
- Fig. 1
- shows schematically and in perspective an embodiment of a wheelchair according to the innovation in the use position,
- Fig. 2
- shows the wheelchair according to FIG. 1 in the non-use position,
- Fig. 3
- shows an enlarged section of FIG. 1 in the area of the contact roller, and
- Fig. 4
- shows an enlarged detail similar to FIG. 3 from FIG. 2 in the area of the contact roller.
Der in den Fig. 1 und 2 schematisch dargestellte Rollstuhl weist zwei Seitenteile 1 und 2 auf, die jeweils aus einem Unterteil 3 bzw. 4 sowie einem Oberteil 5 bzw. 6 bestehen, die, wie das insbesondere aus Fig. 2 ersichtlich ist, durch teleskopartige Führungen in vertikaler Richtung beweglich miteinander verbunden sind. Die Teleskopführungen bestehen aus Rohren 7 bis 10, die in Rohren 11 bis 14 der Unterteile 3 und 4 vertikal verschieblich gehalten sind.The wheelchair shown schematically in FIGS. 1 and 2 has two
Die oberen Enden der Rohre 7 und 8 bzw. 9 und 10 sind mit Buchsen 15 und 16 bzw. 17 und 18 verschweißt, deren Achse quer zur Führungsrichtung der Rohre 7 bis 10 verläuft und in die die Enden von Rohrteilen 19 und 20 drehbar eingreifen.The upper ends of the
In gleicher Weise wie die Rohrteile 19 und 20 an den Oberteilen 5 und 6 befinden sich an den Unterteilen 3 und 4 Rohrteile 21 und 22, die in aus kurzen Rohrstücken bestehenden Buchsen 23 und 24 bzw. 25 und 26 drehbar gehalten sind. Zwei Stangen 27 und 28 sind über ein mittleres Drehlager 29 scherenförmig miteinander verbunden und mit ihren Enden jeweils starr mit den Rohrteilen 19 bzw. 20 sowie 21 bzw. 22 verschweißt.In the same way as the
An den Unterteilen 3 und 4 befinden sich Räder 31 bis 34, die in bekannter Weise ausgebildet und angeordnet sind, was nicht näher erläutert zu werden braucht.On the
Die hinteren, vertikalen Rohre der Unterteile 3 und 4 bilden in ihrem oberen Bereich Anlagerohre 35 und 36, an deren Innenseite Anlagerollen 37 und 38 anliegen, die sich an den äußeren Enden der Buchsen 16 und 18 befinden. Die Anlagerohre 35 und 36 setzen sich über den Führungsbereich nach oben hin fort und sind nach hinten abgekrümmt bzw. abgewinkelt, so daß sie Handgriffe 39 und 40 bilden. Zwischen den Rohrteilen 19 und 20 befindet sich ein Sitz 41 in Form eines flexiblen Gurtes, der mit seinen Rändern die Rohrteile 19 bzw. 20 umschlingt.The rear, vertical tubes of the
In der Darstellung gemäß Fig. 1 und 3 befindet sich der Rohlstuhl in seiner Gebrauchslage, in der die Seitenteile 1 und 2 ihre im wesentlichen durch den Sitz 41 bestimmte maximale Entfernung voneinander haben, in der die Stangen 27 und 28 ihre maximale Spreizung haben. Um den Rollstuhl in die in Fig. 2 bzw. 4 dargestellte Nichtgebrauchslage zu bringen, werden die Griffe 39 und 40 aufeinander zu bewegt, wobei die Anlagerollen 37 und 38 innen auf den Anlagerohren 35 und 36 abrollen und damit alle wesentlichen, durch das Zusammenfalten bedingten Kräfte weitgehend reibungslos übertragen mit dem Ergebnis, daß sich der Rollstuhl ohne großen Kraftaufwand aus der Gebrauchslage in die Nichtgebrauchslage zusammenfalten läßt.1 and 3, the rough chair is in its position of use, in which the
Die Seitenteile 1 und 2 und deren jeweilige Unterteile 3 und 4 sowie Oberteile 5 und 6 brauchen nicht notwendigerweise aus gebogenen bzw. miteinander verschweißten Stahlrohren zu bestehen. Es kann sich auch um flächige, plattenförmige Seitenteile handeln, und die Führungen für die beiden jeweils einander zugeordneten Unter- bzw. Oberteile können auch in jedem Fachmann geläufiger Weise anders ausgebildet sein.The
Claims (2)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9100562U DE9100562U1 (en) | 1991-01-18 | 1991-01-18 | wheelchair |
DE9100562U | 1991-01-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0495193A1 true EP0495193A1 (en) | 1992-07-22 |
EP0495193B1 EP0495193B1 (en) | 1994-10-19 |
Family
ID=6863455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91120881A Expired - Lifetime EP0495193B1 (en) | 1991-01-18 | 1991-12-05 | Wheelchair |
Country Status (9)
Country | Link |
---|---|
US (1) | US5253886A (en) |
EP (1) | EP0495193B1 (en) |
CA (1) | CA2059483A1 (en) |
CZ (1) | CZ281814B6 (en) |
DE (2) | DE9100562U1 (en) |
HU (1) | HU213422B (en) |
NO (1) | NO301212B1 (en) |
RU (1) | RU2060725C1 (en) |
SK (1) | SK278856B6 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6164674A (en) * | 1995-06-05 | 2000-12-26 | Adorno/Rogers Technology, Inc. | Adjustable wheelbase wheelchair |
US6499762B1 (en) | 1995-06-05 | 2002-12-31 | Adorno/Rogers Technology, Inc. | Frame support apparatus and coupling device for use with an ambulatory system and method of fabrication thereof |
US6257609B1 (en) * | 1998-03-27 | 2001-07-10 | O'neill, Sr. Theodore C. | Tilt-in-space wheelchair |
US6135475A (en) * | 1998-10-16 | 2000-10-24 | Brown; Richard | Portable wheelchair |
US7384058B2 (en) * | 2005-01-05 | 2008-06-10 | Ki Mobility Llc | Foldable wheelchair with extensible link assembly and method |
US7988171B2 (en) * | 2005-07-22 | 2011-08-02 | Carlsbad International Export Co., Inc. | Bi-folding wheelchair |
US20070145723A1 (en) * | 2005-11-29 | 2007-06-28 | Kamara Jemimah G | Vertically adjustable folding wheelchair |
FR2931432B1 (en) * | 2008-05-22 | 2011-01-07 | Dorel France Sa | FOLDING STROLLER WITH ASSISTED FOLDING BY ROLLING ELEMENTS |
DE602008006055D1 (en) | 2008-07-03 | 2011-05-19 | Invacare Int Sarl | Collapsible wheelchair |
US8998245B1 (en) | 2014-08-13 | 2015-04-07 | Sunrise Medical (Us) Llc | Folding wheelchair |
US9655794B2 (en) * | 2015-10-07 | 2017-05-23 | Edward T. Bednarz, III | Adjustable wheelchair |
CN106214371A (en) * | 2016-08-15 | 2016-12-14 | 江阴市新盛医疗器材设备有限公司 | A kind of convenience type wheelchair |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2959212A (en) * | 1958-07-14 | 1960-11-08 | Gendron Wheel Company | Seat tube guide for folding wheel chairs |
DE1943339A1 (en) * | 1968-10-16 | 1970-04-23 | Fa Wilhelm Meyer | Foldable hospital elevator |
FR2236343A5 (en) * | 1973-07-06 | 1975-01-31 | Metabio | Wheelchair with side frames on collapsible linkage - upper halves of side frames telescope into lower halves |
US4371183A (en) * | 1980-12-22 | 1983-02-01 | Dion Jean Paul | Folding wheel-chair |
FR2530458A1 (en) * | 1982-07-22 | 1984-01-27 | Meyra Krankenfahrzeug | FOLDING WHEELCHAIR FOR INVALID |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4422660A (en) * | 1982-03-24 | 1983-12-27 | American Hospital Supply Corporation | Removable wheel assembly for wheelchairs |
JPS5919128U (en) * | 1982-07-29 | 1984-02-06 | 工業技術院長 | wheelchair |
US4641848A (en) * | 1985-04-15 | 1987-02-10 | Ayers Robert C | Wheelchair with rocking seat assembly |
US4861056A (en) * | 1987-11-12 | 1989-08-29 | Iron Horse Productions, Inc. | Folding wheelchair with improved frame and suspension system |
-
1991
- 1991-01-18 DE DE9100562U patent/DE9100562U1/en not_active Expired - Lifetime
- 1991-12-05 EP EP91120881A patent/EP0495193B1/en not_active Expired - Lifetime
- 1991-12-05 DE DE59103286T patent/DE59103286D1/en not_active Expired - Fee Related
- 1991-12-18 NO NO914995A patent/NO301212B1/en unknown
-
1992
- 1992-01-13 US US07/819,829 patent/US5253886A/en not_active Expired - Fee Related
- 1992-01-16 CA CA002059483A patent/CA2059483A1/en not_active Abandoned
- 1992-01-17 HU HU9200162A patent/HU213422B/en not_active IP Right Cessation
- 1992-01-17 CZ CS92137A patent/CZ281814B6/en unknown
- 1992-01-17 RU SU925010664A patent/RU2060725C1/en active
- 1992-01-17 SK SK137-92A patent/SK278856B6/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2959212A (en) * | 1958-07-14 | 1960-11-08 | Gendron Wheel Company | Seat tube guide for folding wheel chairs |
DE1943339A1 (en) * | 1968-10-16 | 1970-04-23 | Fa Wilhelm Meyer | Foldable hospital elevator |
FR2236343A5 (en) * | 1973-07-06 | 1975-01-31 | Metabio | Wheelchair with side frames on collapsible linkage - upper halves of side frames telescope into lower halves |
US4371183A (en) * | 1980-12-22 | 1983-02-01 | Dion Jean Paul | Folding wheel-chair |
FR2530458A1 (en) * | 1982-07-22 | 1984-01-27 | Meyra Krankenfahrzeug | FOLDING WHEELCHAIR FOR INVALID |
Also Published As
Publication number | Publication date |
---|---|
DE59103286D1 (en) | 1994-11-24 |
RU2060725C1 (en) | 1996-05-27 |
CS13792A3 (en) | 1992-08-12 |
CZ281814B6 (en) | 1997-02-12 |
HU9200162D0 (en) | 1992-04-28 |
US5253886A (en) | 1993-10-19 |
EP0495193B1 (en) | 1994-10-19 |
DE9100562U1 (en) | 1991-04-11 |
NO914995D0 (en) | 1991-12-18 |
SK278856B6 (en) | 1998-04-08 |
NO301212B1 (en) | 1997-09-29 |
NO914995L (en) | 1992-07-20 |
HU213422B (en) | 1997-06-30 |
HUT59814A (en) | 1992-07-28 |
CA2059483A1 (en) | 1992-07-19 |
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