EP0911012B1 - Collapsible wheelchair - Google Patents
Collapsible wheelchair Download PDFInfo
- Publication number
- EP0911012B1 EP0911012B1 EP98119081A EP98119081A EP0911012B1 EP 0911012 B1 EP0911012 B1 EP 0911012B1 EP 98119081 A EP98119081 A EP 98119081A EP 98119081 A EP98119081 A EP 98119081A EP 0911012 B1 EP0911012 B1 EP 0911012B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tubes
- parts
- bearing
- frame
- diagonal stay
- 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
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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
- A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
- A61G5/0883—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable having locking means for maintaining a folded or unfolded condition
Definitions
- the invention relates to a folding wheelchair with a chassis frame, the two each have a lower and an upper one Has side frame parts with frame tube which are spaced apart from each other in the direction of travel Drive wheel and a front castor bearing and with a cross strut on the bottom Frame tubes of the side frame parts articulated handlebars are interconnected, and with one on the Cross brace seat, two each with one End of a handlebar of the cross strut firmly connected as well lockable with the upper frame tubes of the side frame tele has side seat tubes.
- a folding wheelchair according to the preamble of claim 1 is known from US-A-4,813,693.
- Folding wheelchairs of this type are generally known and also in DE utility model 91 12 908 is, for example such folding wheelchair described.
- the chassis frame consists of two cross braces with each other via a seat connected side frame parts between a spaced use position and an adjacent collapsed position essentially parallel to each other movable and at least in the position of use are lockable.
- On the side frame parts which are made of there are tubes welded to one another one rear drive wheel each and one each around a swivel castor mounted on a vertical axis.
- the Cross strut consists of each other in such wheelchairs crossing tubes or handlebars at the crossing point hinged together and with their lower ends each on a lower frame tube of a side frame part are articulated. With the other ends of the the tubes or handlebars that form the cross strut are seat tubes firmly connected, on which the longitudinal edges mostly consist of strong canvas attached to the existing seat and the with the upper frame tubes of the side frame parts in the position of use can be locked.
- the invention stands underlying task in creating a regard its adaptability to different needs improved folding wheelchair.
- This task is solved in that for the purpose of changeability the seat depth with the lower ends of their handlebars hinged to the lower frame tubes of the side frame parts Cross brace with the seat recorded on it slidable in the direction of travel of the wheelchair and at least two setting positions can be locked.
- the invention is therefore that the for the inclusion of a wheelchair user certain seat in different Distances from the axes of rotation of the drive wheels can be positioned by moving the cross strut towards the longitudinal extent of the side frame parts of the Chassis frame shifted and in the respective setting position is locked. In this way the seat depth is on the needs of each wheelchair user without change adaptable to the center of gravity of the wheelchair.
- Bearing elements of this type provide precise pivoting the cross strut handlebar opposite the bearing elements receiving lower frame tubes of the side frame parts and also a guide for the cross strut such that the handlebars are at right angles from the Project frame tubes receiving bearing elements.
- the arranged at the lower ends of the crossbar handlebars Bearing elements each consisting of two components, namely from a bearing part with at least one bearing seat, which are open on one side and on a lower frame tube lateral frame part transverse to its longitudinal extent is attachable, and from a solid with the respective Cross brace handlebar connected, approximately U-shaped Holding shoe, which is the open side of the warehouse of the overlaps the relevant bearing part and releasably with the latter connected, in particular screwed.
- Such a design of the bearing elements enables a particularly simple assembly in such a way that the bearing parts with their unilaterally open inventory the lower frame tube of a side frame part is attached and then the one at the bottom of a crossbar handlebar arranged holding shoe from the open side of the bearing part pushed onto this and then with the bearing part firmly but releasably connected.
- bearing parts of the bearing elements each with two equipped axially spaced bearing mounts there is a particularly precise guidance of the cross strut on the frame tubes receiving the bearing elements of the side frame parts.
- the bearing parts as molded parts made of plastic with spring elastic Sections of the warehouse inventory trained and on the lower frame tubes of the side frame parts can be clipped on.
- each clamp an inside of this protruding locking pin has and the lower frame tubes of the side frame parts with fixing holes for the insertion of a locking pin are provided in the respective setting position the locking pin of a clamp engages.
- the chassis frame 10 illustrated in FIG. 1 has two side frame parts 11, which in turn each consist of one lower and upper frame tube 12, 13 and these together connecting front and rear frame tubes 14, 15 consist.
- the upper frame tubes 13 of the side Frame parts 11 upwardly projecting sections of the rear Frame tubes 15 are used on the one hand to attach a Backrest and on the other hand are no further with here handles 16 of interest.
- the chassis frame 10 also has a side Frame parts 11 interconnecting cross strut 18, the of a double link 19, 19 'and a latter crossing Handlebar 20 exists.
- the handlebar 20 is between the spaced-apart double links 19, 19 ' recorded and with these at the crossing point by means of a swivel 21 articulated.
- the links 19, 19 'and 20 of the cross strut 18 are each equipped at their upper ends with seat tubes 22 which perpendicular to the respective handlebar in the longitudinal direction of the side frame parts 11 of the chassis frame 10 extend and almost over the entire length of the upper frame tubes 13 of the side frame parts 11 are sufficient.
- the lower Ends of the links 19, 19 'and 20 are with bearing elements 24 equipped and by means of this to the lower Frame tubes 12 of the side frame parts 11 articulated.
- the side frame parts are by means of the cross strut 18 11 parallel to itself between a spaced use position and an adjacent disuse location movable.
- the seat tubes 22 reach for the bracket the side longitudinal edges of a made of durable canvas serve existing seat, not shown in the drawing is on the upper side of the upper frame tubes 13 of the side frame parts 11 attached spaced apart Latches 23 in a form-fitting manner and lock thereby the chassis frame in its position of use.
- the at the lower ends of the handlebars 19, 19 'and 20 of the Cross brace 18 arranged bearing elements 24 each exist from an inner bearing part 25 with two axially from each other spaced and open top inventory 26, 26 'and a U-shaped holding shoe 27, which is firmly connected to the respective link 19, 19 'or 20, for example is welded and away from them on both sides essentially parallel to the seat tubes 22 extended.
- the bearing parts 25 are are molded plastic parts, and the bearing mounts 26, 26 'each have resilient bearing sections which of protrude a base body and onto the lower frame tube 12 of a side frame part transverse to its longitudinal extent can be clipped on.
- each bearing element 24 engages the bearing part 25 and its bearing seats 26, 26 'of the open side forth and is with the bearing part 25 in here in a manner of no particular interest Screws fixed, but releasably connected.
- the axial fixation the cross strut 18 and the added on this Seat clamps designed as spring elements 28, the two sides of the bearing elements 24 on the lower Frame tubes of the side frame parts 11 added are.
- Each clamp 28 has an inside of it protruding locking pin 29 and the lower frame tubes 12 of the side frame parts 11 are with fixing holes 30 equipped, in which the locking bolts in the assembled position 29 engage the clamps 28.
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- 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)
- Outer Garments And Coats (AREA)
- Air Bags (AREA)
- Seal Device For Vehicle (AREA)
- Automatic Cycles, And Cycles In General (AREA)
Description
Die Erfindung betrifft einen Faltrollstuhl mit einem Fahrwerksrahmen, der zwei jeweils ein unteres und ein oberes Rahmenrohr aufweisende seitliche Rahmenteile besitzt, an denen in Fahrtrichtung beabstandet voneinander je ein hinteres Antriebsrad und eine vordere Lenkrolle gelagert und die mittels einer Kreuzstrebe mit jeweils an den unteren Rahmenrohren der seitlichen Rahmenteile angelenkten Lenkern miteinander verbunden sind, und mit einem auf der Kreuzstrebe aufgenommenen Sitz, der zwei jeweils mit einem Ende eines Lenkers der Kreuzstrebe fest verbundene sowie mit den oberen Rahmenrohren der seitlichen Rahmentele verrastbare seitliche Sitzrohre besitzt. Ein Faltrollstuhl gemäß dem Oberbegriff des Anspruchs 1 ist aus US-A-4 813 693 bekannt.The invention relates to a folding wheelchair with a chassis frame, the two each have a lower and an upper one Has side frame parts with frame tube which are spaced apart from each other in the direction of travel Drive wheel and a front castor bearing and with a cross strut on the bottom Frame tubes of the side frame parts articulated handlebars are interconnected, and with one on the Cross brace seat, two each with one End of a handlebar of the cross strut firmly connected as well lockable with the upper frame tubes of the side frame tele has side seat tubes. A folding wheelchair according to the preamble of claim 1 is known from US-A-4,813,693.
Faltrollstühle dieser Art sind allgemein bekannt und auch in dem DE-Gebrauchsmuster 91 12 908 ist beispielsweise ein derartiger Faltrollstuhl beschrieben.Folding wheelchairs of this type are generally known and also in DE utility model 91 12 908 is, for example such folding wheelchair described.
Bei derartigen Rollstühlen besteht der Fahrwerksrahmen aus zwei über eine den Sitz aufnehmende Kreuzstrebe miteinander verbundenen seitlichen Rahmenteilen, die zwischen einer beabstandeten Gebrauchsstellung und einer benachbarten Zusammenklapplage im wesentlichen parallel zu sich selbst gegeneinander bewegbar und zumindest in der Gebrauchsstellung verriegelbar sind. An den seitlichen Rahmenteilen, die aus miteinander verschweißten Rohren bestehen, ist einerseits je ein hinteres Antriebsrad und andererseits je eine um eine Hochachse verschwenkbare Lenkrolle gelagert. Die Kreuzstrebe besteht bei derartigen Rollstühlen aus einander kreuzenden Rohren oder Lenkern, die im Kreuzungspunkt gelenkig miteinander verbunden und mit ihren unteren Enden jeweils an einem unteren Rahmenrohr eines seitlichen Rahmenteils angelenkt sind. Mit den jeweils anderen Enden der die Kreuzstrebe bildenden Rohre oder Lenker sind Sitzrohre fest verbunden, an denen die Längskanten eines zumeist aus kräftigem Segeltuch bestehenden Sitzes befestigt und die mit den oberen Rahmenrohren der seitlichen Rahmenteile in der Gebrauchsstellung verrastbar sind.In such wheelchairs, the chassis frame consists of two cross braces with each other via a seat connected side frame parts between a spaced use position and an adjacent collapsed position essentially parallel to each other movable and at least in the position of use are lockable. On the side frame parts, which are made of there are tubes welded to one another one rear drive wheel each and one each around a swivel castor mounted on a vertical axis. The Cross strut consists of each other in such wheelchairs crossing tubes or handlebars at the crossing point hinged together and with their lower ends each on a lower frame tube of a side frame part are articulated. With the other ends of the the tubes or handlebars that form the cross strut are seat tubes firmly connected, on which the longitudinal edges mostly consist of strong canvas attached to the existing seat and the with the upper frame tubes of the side frame parts in the position of use can be locked.
Unbefriedigend ist bei derartigen Rollstühlen deren mangelnde oder zumindest sehr erschwerte Anpaßbarkeit an unterschiedliche Bedürfnisse, so an verschiedene Körpergrößen potentieller Benutzer. Demgemäß bsteht die der Erfindung zugrundeliegende Aufgabe in der Schaffung eines hinsichtlich seiner Anpaßbarkeit an unterschiedliche Bedürfnisse verbesserten Faltrollstuhls.The lack of such wheelchairs is unsatisfactory or at least very difficult to adapt to different ones Needs, so for different body sizes potential user. Accordingly, the invention stands underlying task in creating a regard its adaptability to different needs improved folding wheelchair.
Gelöst ist diese Aufgabe dadurch, daß zwecks Veränderbarkeit der Sitztiefe die mit den unteren Enden ihrer Lenker an den unteren Rahmenrohren der seitlichen Rahmenteile angelenkte Kreuzstrebe mit dem auf dieser aufgenommenen Sitz in Fahrtrichtung des Rollstuhls verschiebbar und in wenigstens zwei Einstellagen arretierbar ist.This task is solved in that for the purpose of changeability the seat depth with the lower ends of their handlebars hinged to the lower frame tubes of the side frame parts Cross brace with the seat recorded on it slidable in the direction of travel of the wheelchair and at least two setting positions can be locked.
Bei der Erfindung handelt es sich somit darum, daß der für die Aufnahme eines Rollstuhlfahrers bestimmte Sitz in unterschiedlichen Abständen von den Drehachsen der Antriebsräder positionierbar ist, indem die Kreuzstrebe in Richtung der Längserstreckung der seitlichen Rahmenteile des Fahrwerksrahmens verschoben und in der jeweiligen Einstelllage arretiert wird. Auf diese Weise ist die Sitztiefe an die Bedürfnisse des jeweiligen Rollstuhlfahrers ohne Veränderung der Schwerpunktlage des Rollstuhls anpaßbar.The invention is therefore that the for the inclusion of a wheelchair user certain seat in different Distances from the axes of rotation of the drive wheels can be positioned by moving the cross strut towards the longitudinal extent of the side frame parts of the Chassis frame shifted and in the respective setting position is locked. In this way the seat depth is on the needs of each wheelchair user without change adaptable to the center of gravity of the wheelchair.
Bei einer sinnvollen Weiterbildung der Erfindung sind an den unteren Enden der gelenkig miteinander verbundenen Kreuzstreben-Lenker sich rechtwinklig zu diesen erstrekkende und auf den unteren Rahmenrohren der Seitenrahmen drehbar und längsbeweglich aufgenommene Lagerelemente angeordnet.In a meaningful development of the invention are on the lower ends of the hinged together Cross brace handlebars extending at right angles to these and on the lower frame tubes of the side frames Arranged rotatably and longitudinally movable bearing elements.
Derartige Lagerelemente vermitteln eine präzise Drehlagerung der Kreuzstreben-Lenker gegenüber den die Lagerelemente aufnehmenden unteren Rahmenrohren der seitlichen Rahmenteile und darüber hinaus auch eine Führung der Kreuzstrebe derart, daß deren Lenker rechtwinklig von den die Lagerelemente aufnehmenden Rahmenrohren vorstehen.Bearing elements of this type provide precise pivoting the cross strut handlebar opposite the bearing elements receiving lower frame tubes of the side frame parts and also a guide for the cross strut such that the handlebars are at right angles from the Project frame tubes receiving bearing elements.
Gemäß einer anderen vorteilhaften Weiterbildung bestehen die an den unteren Enden der Kreuzstreben-Lenker angeordneten Lagerelemente jeweils aus zwei Bauteilen, nämlich aus einem Lagerteil mit wenigstens einer Lageraufnahme, die einseitig offen und auf ein unteres Rahmenrohr eines seitlichen Rahmenteils quer zu dessen Längserstreckung aufsteckbar ist, und aus einem fest mit dem jeweiligen Kreuzstreben-Lenker verbundenen, etwa U-förmig ausgebildeten Halteschuh, der die Offenseite der Lageraufnahme des betreffenden Lagerteils übergreift und mit letzterem lösbar verbunden, insbesondere verschraubt ist.According to another advantageous development the arranged at the lower ends of the crossbar handlebars Bearing elements each consisting of two components, namely from a bearing part with at least one bearing seat, which are open on one side and on a lower frame tube lateral frame part transverse to its longitudinal extent is attachable, and from a solid with the respective Cross brace handlebar connected, approximately U-shaped Holding shoe, which is the open side of the warehouse of the overlaps the relevant bearing part and releasably with the latter connected, in particular screwed.
Eine derartige Ausbildung der Lagerelemente ermöglicht eine besonders einfache Montage in der Weise, daß die Lagerteile mit ihren einseitig offenen Lageraufnahmen auf das untere Rahmenrohr eines seitlichen Rahmenteils aufgesteckt und danach der am unteren Ende eines Kreuzstreben-Lenkers angeordnete Halteschuh von der Offenseite des Lagerteils her auf dieses aufgeschoben und dann mit dem Lagerteil fest, jedoch lösbar verbunden wird.Such a design of the bearing elements enables a particularly simple assembly in such a way that the bearing parts with their unilaterally open inventory the lower frame tube of a side frame part is attached and then the one at the bottom of a crossbar handlebar arranged holding shoe from the open side of the bearing part pushed onto this and then with the bearing part firmly but releasably connected.
Wenn die Lagerteile der Lagerelemente jeweils mit zwei axial voneinander beabstandeten Lageraufnahmen ausgerüstet sind, ergibt sich eine besonders präzise Führung der Kreuzstrebe auf den die Lagerelemente aufnehmenden Rahmenrohren der seitlichen Rahmenteile. Insbesondere ist dies der Fall, wenn die Lagerteile als Formteile aus Kunststoff mit federelastischen Abschnitten der Lageraufnahmen ausgebildet und auf die unteren Rahmenrohre der seitlichen Rahmenteile aufclipbar sind.If the bearing parts of the bearing elements each with two equipped axially spaced bearing mounts there is a particularly precise guidance of the cross strut on the frame tubes receiving the bearing elements of the side frame parts. In particular, this is the case if the bearing parts as molded parts made of plastic with spring elastic Sections of the warehouse inventory trained and on the lower frame tubes of the side frame parts can be clipped on.
Die Ausrüstung der Lageraufnahmen mit federelastischen Abschnitten sichert die Lagerteile nach dem Aufstecken auf die unteren Rahmenrohre der seitlichen Rahmenteile, wodurch eine besonders einfache Montage möglich ist.Equipping the bearing mounts with resilient sections secures the bearing parts after attaching them the lower frame tubes of the side frame parts, whereby a particularly simple assembly is possible.
Obgleich vielfältige Möglichkeiten zum axialen Festlegen der Kreuzstrebe gegenüber den seitlichen Rahmenteilen des Fahrwerksrahmens vorstellbar sind, hat sich die axiale Fixation der Kreuzstrebe durch beidseitig der Anlenkung der Kreuzstreben-Lenker an die unteren Rahmenrohre der seitlichen Rahmenteile auf den genannten Rahmenrohren axialfest aufgenommene Halteschellen als vorteilhaft erwiesen.Although diverse possibilities for axial fixing the cross strut opposite the side frame parts of the Chassis frame are conceivable, the axial Fixation of the cross strut by the articulation on both sides the crossbar handlebars to the lower frame tubes of the side frame parts on the frame tubes mentioned axially fixed holding clamps proved to be advantageous.
Zweckmäßigerweise kann es sich bei den Halteschellen zum axialen Fixieren der Kreuzstrebe um auf die unteren Rahmenrohre der seitlichen Rahmenteile aufclipbare Federschellen handeln, die kraft- oder formschlüssig mit dem jeweiligen Rahmenrohr eines seitlichen Rahmenteils zusammenwirken. Appropriately, it can be with the holding clamps axially fix the cross brace around on the lower frame tubes spring clips on the side frame parts act that positively or positively with the respective Interact frame tube of a side frame part.
Eine besonders sichere Fixation der Kreuzstrebe in ihrer jeweiligen Einstellage ist dann gewährleistet, wenn gemäß einer weiteren Ausgestaltung der Erfindung jede Halteschelle einen innenseitig von dieser vorstehenden Rastbolzen besitzt und die unteren Rahmenrohre der seitlichen Rahmenteile mit Fixierbohrungen für die Aufnahme eines Rastbolzens versehen sind, in die in der jeweiligen Einstellage der Rastbolzen einer Halteschelle eingreift.A particularly secure fixation of the cross strut in her The respective setting position is guaranteed if according to a further embodiment of the invention, each clamp an inside of this protruding locking pin has and the lower frame tubes of the side frame parts with fixing holes for the insertion of a locking pin are provided in the respective setting position the locking pin of a clamp engages.
Eine Ausführungsform der Erfindung soll nachstehend anhand der beigefügten Zeichnung erläutert werden. In schematischen Ansichten zeigen:
- Fig. 1
- einen aus zwei seitlichen Rahmenteilen und einer diese miteinander verbindenden Kreuzstrebe bestehenden Fahrwerksrahmen eines Faltrollstuhls für sich allein in einer perspektivischen Ansicht und
- Fig. 2
- ein die Anlenkung eines Kreuzstreben-Lenkers an ein unteres Rahmenrohr eines seitlichen Rahmenteils vermittelndes Lagerelement in einer perspektivischen Explosionsdarstellung.
- Fig. 1
- a chassis frame of a folding wheelchair consisting of two lateral frame parts and a cross strut connecting them to each other alone in a perspective view and
- Fig. 2
- a bearing element mediating the articulation of a cross strut handlebar to a lower frame tube of a side frame part in a perspective exploded view.
Der in Fig. 1 veranschaulichte Fahrwerksrahmen 10 besitzt
zwei seitliche Rahmenteile 11, die ihrerseits aus je einem
unteren und oberen Rahmenrohr 12, 13 sowie diese miteinander
verbindenden vorderen und hinteren Rahmenrohren 14, 15
bestehen. Über die oberen Rahmenrohre 13 der seitlichen
Rahmenteile 11 nach oben vorstehende Abschnitte der hinteren
Rahmenrohre 15 dienen einerseits der Anbringung einer
Rückenlehne und sind andererseits mit hier nicht weiter
interessierenden Griffstücken 16 verbunden. The
Der Fahrwerksrahmen 10 besitzt ferner eine die seitlichen
Rahmenteile 11 miteinander verbindene Kreuzstrebe 18, die
aus einem Doppellenker 19, 19' und einem letzteren kreuzenden
Lenker 20 besteht. Der Lenker 20 ist zwischen den
beabstandet voneinander verlaufenden Doppellenkern 19, 19'
aufgenommen und mit diesen im Kreuzungspunkt mittels
eines Drehgelenks 21 gelenkig verbunden.The
Die Lenker 19, 19' und 20 der Kreuzstrebe 18 sind jeweils
an ihren oberen Enden mit Sitzrohren 22 ausgerüstet, die
sich rechtwinklig zum jeweiligen Lenker in Längsrichtung
der seitlichen Rahmenteile 11 des Fahrwerkrahmens 10 erstrecken
und nahezu über die gesamte Länge der oberen Rahmenrohre
13 der seitlichen Rahmenteile 11 reichen. Die unteren
Enden der Lenker 19, 19' und 20 sind mit Lagerelementen
24 ausgerüstet und mittels dieser an den unteren
Rahmenrohren 12 der seitlichen Rahmenteile 11 angelenkt.The
Mittels der Kreuzstrebe 18 sind die seitlichen Rahmenteile
11 parallel zu sich selbst zwischen einer beabstandeten Gebrauchsstellung
und einer benachbarten Nichtgebrauchslage
bewegbar. In der Gebrauchsstellung, die in Fig. 1 dargestellt
ist, greifen die Sitzrohre 22, die zur Halterung
der seitlichen Längskanten eines aus durablem Segeltuch
bestehenden Sitzes dienen, der in der Zeichnung nicht dargestellt
ist, in oberseitig an den oberen Rahmenrohren 13
der seitlichen Rahmenteile 11 beabstandet voneinander angebrachte
Verrastungen 23 formschlüssig ein und arretieren
dadurch den Fahrwerksrahmen in seiner Gebrauchsstellung. The side frame parts are by means of the
Die an den unteren Enden der Lenker 19, 19' und 20 der
Kreuzstrebe 18 angeordneten Lagerelemente 24 bestehen jeweils
aus einem inneren Lagerteil 25 mit zwei axial voneinander
beabstandeten und oberseitig offenen Lageraufnahmen
26, 26' und einem U-förmig ausgebildeten Halteabschuh
27, der fest mit dem jeweiligen Lenker 19, 19' bzw. 20 verbunden,
beispeilsweise verschweißt ist und sich von diesen
auf beiden Seiten im wesentlichen parallel zu den Sitzrohren
22 forterstreckt. Bei den Lagerteilen 25 handelt es
sich um Formteile aus Kunststoff, und die Lageraufnahmen
26, 26' haben jeweils federnde Lagerabschnitte, die von
einem Grundkörper vorstehen und auf das untere Rahmenrohr
12 eines seitlichen Rahmenteils quer zu dessen Längserstreckung
aufclipbar sind.The at the lower ends of the
Der Halteschuh 27 eines jeden Lagerelements 24 übergreift
das Lagerteil 25 und dessen Lageraufnahmen 26, 26' von
deren Offenseite her und ist mit dem Lagerteil 25 in hier
im einzelnen nicht interessierender Weise mittels
Schrauben fest, jedoch lösbar verbunden. Der axialen Fixiation
der Kreuzstrebe 18 und des auf dieser aufgenommen
Sitzes dienen als Federelemente ausgebildete Halteschellen
28, die beidseitig der Lagerelemente 24 auf den unteren
Rahmenrohren der seitlichen Rahmenteile 11 aufgenommen
sind. Jede Halteschelle 28 hat einen innenseitig von dieser
vorstehenden Rastbolzen 29 und die unteren Rahmenrohre
12 der seitlichen Rahmenteile 11 sind mit Fixierbohrungen
30 ausgerüstet, in die in der Montagelage die Rastbolzen
29 der Halteschellen 28 eingreifen.The
Wenn eine Anpassung des Rollstuhls 10 an die individuellen
Bedürfnisse eines Benutzers notwendig ist, müssen die beidseitig
der Lagerelemente 24 auf die unteren Rahmenrohre 12
der seitlichen Rahmenteile 11 aufgeclipten Halteschellen
28 entfernt werden, was angesichts ihrer Ausbildung als
Federelemente unproblematisch möglich ist. Danach können
die drehbar und längs verschiebbar auf den unteren Rahmenrohren
12 der seitlichen Rahmenteile 11 aufgeommenen Lagerelemente
24 in Richtung der Längserstreckung der genannten
Rahmenrohre verschoben werden, was eine Verschiebung
des auf der Kreuzstrebe aufgenommenen Sitzes gegenüber dem
zwischen den nach oben vorstehenden Abschnitten der hinteren
Rahmenrohre 15 angeordneten Sitz zur Folge hat. Nach
der Verschiebung der Kreuzstrebe 18 werden die Halteschellen
28 beidseitig der Lagerelemente erneut auf die unteren
Rahmenrohre 12 der seitlichen Rahmenteile 11 aufgeclipt,
wobei die von den Halteschellen innenseitig vorstehenden
Rastbolzen 29 in Fixierbohrungen 30 der unteren Rahmenrohre
12 eingreifen. Bei entsprechend enger Anordnung der
Fixierbohrungen in den unteren Rahmenrohren 12 gelingt auf
diese Weise eine feinstufige Sitzverstellung.If an adjustment of the
Claims (8)
- Collapsible wheelchair with a chassis frame, comprising two frame parts which each have a lower and upper frame tube and at which respectively a rear drive wheel and front steering roller disposed at a mutual spacing in travel direction are mounted and which are connected together by means of a diagonal stay with links respectively articulated to the lower frame tubes of the lateral frame parts, and with a seat which is received on the diagonal stay and which comprises two seat tubes respectively fixedly connected with an end of a link of the diagonal stay and detentable with the upper frame tubes of the side frames, characterised in that for the purpose of adjusting the seat depth the diagonal stay (18) together with the seat received thereon is displaceable in travel direction of the wheelchair (10) and fixable in at least two positions of adjustment.
- Collapsible wheelchair according to claim 1, characterised in that bearing elements (24), which are received on the lower frame tubes (12) of the lateral frame parts (11) to be rotatable and longitudinally movable, are arranged at the lower ends of the diagonal stay links (19, 19'; 20), which are pivotably connected together, to extend at right angles thereto.
- Collapsible wheelchair according to claim 2, characterised in that the bearing elements (24) arranged at the lower ends of the diagonal stay links (19, 19'; 20) each comprise a bearing part (25) with at least one bearing receptacle (26, 26'), which is open at one side and can be plugged onto the lower frame tube (12) of the lateral frame parts (11) transversely to the longitudinal extent thereof, and a retaining shoe (27), which is fixedly connected with the respective diagonal stay link (19, 19'; 20) and is constructed to approximately in U-shape and which engages over the upper side of the bearing receptacle (26, 26') of the associated bearing part (25) and is detachably connected, particularly screw-connected, with the latter.
- Collapsible wheelchair according to claim 3, characterised in that the bearing parts (25) are each equipped with two axially mutually spaced bearing receptacles (26, 26').
- Collapsible wheelchair according to claim 3 or 4, characterised in that the bearing parts (25) are constructed as moulded parts of synthetic material and can be clipped onto the lower frame tubes (12) of the lateral frame parts (11).
- Collapsible wheelchair according to one of claims 1 to 5, characterised in that the diagonal stay (18) is axially fixed by retaining clips (28) axially fixedly received on the said frame tubes (12) at both sides of the pivotal connection of the links (19, 19'; 20) thereof to the lower frame tubes (12) of the lateral frame parts (11).
- Collapsible wheelchair according to claim 6, characterised in that the retaining clips (28) for axial fixing of the diagonal stay (18) are spring clips able to be clipped onto the lower frame tubes (12) of the lateral frame parts (11).
- Collapsible wheelchair according to claim 7, characterised in that each retaining clip (28) has detent pins (29) protruding therefrom at the inner side and that the lower frame tubes (12) of the lateral frame parts (11) are provided with fixing bores (30) for reception of a detent pin (29).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29718536U DE29718536U1 (en) | 1997-10-18 | 1997-10-18 | Folding wheelchair |
DE29718536U | 1997-10-18 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0911012A2 EP0911012A2 (en) | 1999-04-28 |
EP0911012A3 EP0911012A3 (en) | 1999-05-19 |
EP0911012B1 true EP0911012B1 (en) | 2003-03-12 |
Family
ID=8047425
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98119081A Expired - Lifetime EP0911012B1 (en) | 1997-10-18 | 1998-10-09 | Collapsible wheelchair |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0911012B1 (en) |
DE (2) | DE29718536U1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4088705A1 (en) | 2021-05-12 | 2022-11-16 | Meyra GmbH | Collapsible frame for a wheelchair |
DE102021123806A1 (en) | 2021-05-12 | 2022-11-17 | Meyra Gmbh | Folding frame for a wheelchair |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004112674A2 (en) * | 2003-06-20 | 2004-12-29 | Invacare Limited | Improvements in or relating to disability vehicles and fastening devices |
US20110018221A1 (en) * | 2009-07-27 | 2011-01-27 | Benjamin A Anooshian | Wheelchair having reversible seat rail support structure |
DE102014019679B4 (en) | 2014-12-19 | 2018-01-11 | Otto Bock Mobility Solutions Gmbh | folding wheelchair |
CN108635122B (en) * | 2018-05-22 | 2024-07-30 | 中山市福佑康复器材有限公司 | Foldable portable wheelchair |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4813693A (en) * | 1986-09-30 | 1989-03-21 | Invacare Corporation | Adjustable child's wheelchair |
DE9112908U1 (en) | 1991-10-17 | 1991-12-12 | Sorg, Hugo, 6839 Oberhausen-Rheinhausen | Wheelchair frame suitable for abduction measures |
DE59709131D1 (en) * | 1996-09-04 | 2003-02-20 | Meyra Wilhelm Meyer Gmbh & Co | wheelchair |
-
1997
- 1997-10-18 DE DE29718536U patent/DE29718536U1/en not_active Expired - Lifetime
-
1998
- 1998-10-09 DE DE59807445T patent/DE59807445D1/en not_active Expired - Lifetime
- 1998-10-09 EP EP98119081A patent/EP0911012B1/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4088705A1 (en) | 2021-05-12 | 2022-11-16 | Meyra GmbH | Collapsible frame for a wheelchair |
DE102021123806A1 (en) | 2021-05-12 | 2022-11-17 | Meyra Gmbh | Folding frame for a wheelchair |
DE102021123806B4 (en) | 2021-05-12 | 2024-08-22 | Meyra Gmbh | Folding frame for a wheelchair |
Also Published As
Publication number | Publication date |
---|---|
DE29718536U1 (en) | 1998-02-19 |
EP0911012A2 (en) | 1999-04-28 |
EP0911012A3 (en) | 1999-05-19 |
DE59807445D1 (en) | 2003-04-17 |
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