EP1743612A2 - Wheelchair for disabled persons - Google Patents
Wheelchair for disabled persons Download PDFInfo
- Publication number
- EP1743612A2 EP1743612A2 EP06014670A EP06014670A EP1743612A2 EP 1743612 A2 EP1743612 A2 EP 1743612A2 EP 06014670 A EP06014670 A EP 06014670A EP 06014670 A EP06014670 A EP 06014670A EP 1743612 A2 EP1743612 A2 EP 1743612A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- seat
- support
- chassis
- wheelchair
- seat part
- 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
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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
- A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
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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
- A61G5/1056—Arrangements for adjusting the seat
- A61G5/1067—Arrangements for adjusting the seat adjusting the backrest relative to the seat portion
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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
- 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
-
- 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
- A61G5/1056—Arrangements for adjusting the seat
- A61G5/107—Arrangements for adjusting the seat positioning the whole seat forward or rearward
-
- 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
- A61G5/1056—Arrangements for adjusting the seat
- A61G5/1075—Arrangements for adjusting the seat tilting the whole seat backwards
Definitions
- the invention relates to a wheelchair for physically disabled persons, having a seat mounted in a chassis, a backrest part and a seat part , wherein the backrest part is pivotally mounted in the chassis, and the backrest part and the seat part are freely pivotally connected to each other, and the seat part in the region of its backrest part facing away from the end relative to the chassis is slidably mounted in this.
- Such a wheelchair is intended in particular for the admission under spastic convulsions of suffering persons.
- uncontrolled impulses are delivered to the musculature, leading to a spasmodic muscle tension, which generally causes a body extension.
- a wheelchair makes it possible by muscle power to pivot the backrest with respect to the seat.
- a footrest of the wheelchair can be pivoted in the straight position to the seat, especially if the patient is fixed in a wheelchair.
- the seat can thus follow the movement of the patient initiated by the muscular tension, so that the muscle force actually leads to a body extension and is not caught by fastening means for fixing the patient.
- a wheelchair of the type mentioned is from the EP 0 911 008 A2 known.
- a linear guide is attached to the chassis below the seat part, on the displaceable component, the seat part is pivotally articulated.
- the displaceable component may act on train loaded tension spring which the seat part to the rear, ie the backrest part, pulls, so that the seat part and the backrest part are pulled into the normal angled seating position.
- the lower part is attached to the linear guide on an L-shaped frame part of the chassis.
- the upper end of the upper part of the linear guide is pivotally connected to the underside of the seat part.
- the linear guide consists of two parts, wherein the lower part is expensive to attach to the chassis.
- the linear guide also allows only a linear guide of the upper part of the linear guide relative to the lower part of the linear guide. Accordingly, it is for connecting the linear guide, specifically the upper part of the linear guide with the seat part, required to provide a pivotable articulation of the upper part of the linear guide on the seat.
- the seat part is thus firmly connected to the displaceable component of the linear guide.
- the linear guide receives lateral guiding forces, it is necessary to make the wheelchair in this area with small tolerances in order to prevent tension of seat and chassis due to the further storage of the seat part on the backrest part in the chassis.
- Object of the present invention is to develop a wheelchair of the type mentioned so that in this the disadvantages described above are avoided.
- At least one support is connected to the chassis on which the seat part loosely rests in the region of its end remote from the back wall part.
- the wheelchair according to the invention thus has no linear guide. It is there provided the support for the seat part that has the function to absorb the weight of the seat part. There are thus, with respect to the discussed prior art, no, a structural unit with each other forming guides - stationary component and movable component -.
- the lateral guide function for the seat part or the seat takes over the chassis, for example, two parallel plates of the chassis, between which the seat is arranged.
- the seat part is also loosely on the support. It is not articulated there. This loose support of the seat part makes it possible to fold up the seat part, whereby the device can be accommodated space-saving when not in use.
- Another advantage of the loose pad of the seat is the fact that there is the possibility of storage of the pad in the Further develop the chassis so that the support in the longitudinal direction relative to the seat part can be adjusted.
- another lever arm for the introduction of the weight force can be achieved, which initiates the person using the device in order to apply the moment for transferring the backrest part and the seat part of the device in its more extended position.
- two supports are provided, which are arranged at a distance from each other and on which the seat part rests.
- the seat part rests on the supports in the area of its sides facing the wheels of the wheelchair.
- the seat part is thus stored tilt-stable, based on an axis in the longitudinal direction of the wheelchair.
- the at least one support is mounted horizontally and / or vertically adjustable in the chassis.
- the horizontal adjustability allows a change of the lever arm for the initiation of the weight of the person using the device to apply the moment for transferring backrest part and seat part in its more extended position.
- the inclination of the seat part can be varied.
- the at least one support is mounted in a rod which is mounted in the chassis.
- This rod is slidably mounted and fixed in particular in a receptacle of the chassis. This allows a simple adjustment of the support, in particular in a substantially horizontal direction.
- the displacement of the support forwards and backwards changes the force required for the person to be able to go with the seat in the extension and, moreover, causes a change in the position of the seat surface of the seat part which is more or less horizontal.
- the support surface of the support member receiving the support is flat, in particular, the support surface is arranged substantially horizontally.
- the support member receiving surface may be formed curved in a vertical plane, in particular starting from a substantially horizontal surface portion of the support surface. If this curvature directed upward and moves when the person applies the moment for transferring the backrest part and seat part in its more extended position, the seat part along the curved support surface up, the person has an increased force to transfer the seat in the Apply more stretched position, as it must raise the seat part due to the geometric specification of the support.
- the support surface may, for example, based on a vertical plane, have angled to each other arranged surface portions.
- the angled or curved design of the support surface of the support is thus able to hold the seat part in a more horizontal position to increase the resistance in the extension and to support the transfer of the seat in the unstretched position of the backrest part and seat part.
- a development of the invention provides that the support is substantially horizontally divided, with a lower support member mounted in the chassis and an upper support member having the support surface, wherein between the two support members, an elastic member, in particular at least one compression spring is arranged. Due to this configuration, when the person leaves the extended position, shock forces introduced by the person into the wheelchair can be elastically cushioned. As a result, it is effectively avoided that the person is frightened and, in addition, the wheelchair is abruptly subjected to the initiated forces.
- the seat part has a seat frame with at least one of these seat plate received, wherein the seat frame rests on the at least one support.
- the backrest part preferably has a backrest frame and at least one backrest plate received by the latter.
- the one or more parts actual seat cushion is attached, which is thus placed in the region of the thigh and the back of the person.
- the seat 3 has a backrest part 4 and a seat part 5.
- the backrest part 4 has a frame 6, which carries a backrest plate 7, and two lateral bearing plates 8 connected to the frame 6.
- the frame 6 and the mutually parallel bearing plates 8 are arranged substantially at right angles to each other.
- actuable locking pins 10 are mounted in the bearing plates 8 by means of a pulling mechanism. To these locking pins 10, the seat 3 is pivotally mounted in the chassis 2.
- the seat part 5 has a frame 11 with two mutually adjustable, mounted in the frame 11 seat plates 12 and two mutually parallel arranged substantially perpendicular to the seat plates 12 extending bearing plates 13.
- the two bearing plates 13 are pivotally connected by bolts 14 to the bearing plates 8.
- the frame 11 consists of the retractable and retractable as well as not shown means lockable frame members 15 and 16, which can be increased or reduced by the two seat plates, the seat.
- the chassis 2 has two rear large wheels 20 and two front small wheels 21, wherein the wheels 21 are steerable.
- the wheels 20, 21 are mounted in a tubular frame 22 of the chassis 2, the longitudinal struts and these connecting cross struts has.
- two control plates 23 are mounted in these areas of the tubular frame 22 on mutually facing sides of the offending portions of the tubular frame.
- These control plates 23 are, based on the orientation of the wheelchair 1, provided with a plurality of holes 24 arranged in the rear and upper region of the control plates 23, wherein two corresponding holes 24 of the two control plates 23 serve to receive the two locking pins 10 of the seat 3.
- the axially displaceable locking pins 10 are inserted, results in a different pivot axis of the seat 3 with respect to the control plates 23rd
- the two control plates 23 are connected to each other by means of two transverse struts 25. These transverse struts 25 receive in the region of the control plates 23 parallel to these arranged pipe pieces 26 which are fixed to the cross braces 25.
- a rod 27 is inserted, which can be positioned by means not shown clamping means in any inserted or extended position with respect to the pipe section 26.
- the respective rod 27 receives in the region of its end facing away from the pipe piece designed as a support pad bearing 28 with upper bearing surface 29.
- the seat 3 with its backrest part 4 about the axis of the locking pins 10 pivotally mounted in the two, part of the chassis 2 forming control plates 23.
- the seat part 5 of the seat 3 is loosely connected to the cross tube 30 of the frame member 15, generally with the frame member 15 or even with the frame member 16 on the two supports 28, depending on the setting and setting of the frame 11 and the support 28, and contacted
- the wheelchair 1 is additionally provided with means that fix the seat in the normal position, thus do not allow to represent the dynamic function.
- the two bearing plates 8 are directed away from each other, thus outwardly directed pins 31 which engage in the normal position of the seat 3 in slots 32 of the control plates 23, wherein at a small distance to the bottom of the respective slot 32, a locking pin 33 through Actuating means comprising a knob and a cable, in a rear grip position with the locking pin 33 or in a position in which no Rear grip is done, is convertible. In the rear grip position, the pins 31 are fixed, so that the dynamic function can not be realized.
- control plates 23 are pivotally mounted in the tubular frame 22 via means not shown. This makes it possible to pivot the seat 3 as a whole, while maintaining the functionality of the dynamic position, about an axis parallel to the axis of the wheels 20 arranged axis.
- To set the control plates 23 in the desired angular position are used in the tubular frame 22 mounted locking means 25 which are engageable in a detent position with the recess 36 of the control plates 23. These locking means 25 are also actuated by means not shown.
- the support surface 29 of the respective support 28 is flat, in particular arranged horizontally. Due to the mounting of the support 28, this can be moved horizontally and thus change the point of articulation of the seat 3, specifically the point of articulation of the seat 3 in the region of the frame 11.
- a first modification of the support 28 provides that, as shown in particular in the representation of FIG. 3 and FIG. 6, it has plane, angled sections 37 and 38 of the support surface 29. Accordingly, the contacting of the support 28 can take place in different sections, for example in a horizontal and then a horizontal inclined portion, this section can be inclined up or down, depending on the desired force application ratios and thus desired moments to initiate the person are to verify the dynamic function.
- Figure 8 illustrates the seat portion 5 in a partially upwardly pivoted position, in which the cross tube 30 from the support, specifically the two supports 28 is lifted.
- Figures 9 and 10 show a modified embodiment.
- the support surface 29 of the respective support 28 in the vertical plane which coincides with the plane of the sheet, formed curved.
- This bearing surface 29 has a substantially horizontal surface portion and a subsequent thereto in the direction of the backrest portion 4 curved portion, wherein the curvature, starting from the horizontal portion, is directed upward.
- the cross tube 30 slides along the curved support surfaces 29 of the support 28 upwards, whereby the person when transferring the seat 3 in the extended position, the seat part 5 must additionally raise and thus have to spend an increased moment.
- Figures 11 and 12 illustrate a further modification of the respective support 28.
- the support 28 is substantially horizontally divided, with a lower support member 39 mounted in the rod 27 and an upper support member 40 having the support surface 29. Between the two support parts 39 and 40, a compression spring 41 is arranged. Due to this configuration, forces are introduced into the support 38 via the seat 3 in a damped manner.
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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)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
- Inert Electrodes (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Fuel-Injection Apparatus (AREA)
- Sanitary Device For Flush Toilet (AREA)
- Percussion Or Vibration Massage (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
Description
Die Erfindung betrifft einen Rollstuhl für körperbehinderte Personen, mit einem in einem Fahrgestell gelagerten Sitz, der ein Rückenlehnenteil und ein Sitzteil aufweist, wobei das Rückenlehnenteil im Fahrgestell schwenkbar gelagert ist, sowie das Rückenlehnenteil und das Sitzteil frei schwenkbar miteinander verbunden sind, und das Sitzteil im Bereich seines dem Rückenlehnenteil abgewandten Endes relativ zum Fahrgestell verschiebbar in diesem gelagert ist.The invention relates to a wheelchair for physically disabled persons, having a seat mounted in a chassis, a backrest part and a seat part , wherein the backrest part is pivotally mounted in the chassis, and the backrest part and the seat part are freely pivotally connected to each other, and the seat part in the region of its backrest part facing away from the end relative to the chassis is slidably mounted in this.
Ein solcher Rollstuhl ist insbesondere für die Aufnahme unter spastischen Krämpfen leidender Personen vorgesehen. Bei diesen Personen werden unkontrollierte Impulse an die Muskulatur abgegeben, die zu einer krampfartigen Muskelanspannung führen, welche im Allgemeinen eine Körperstreckung bewirkt. Ein solcher Rollstuhl ermöglicht es durch Muskelkraft die Rückenlehne bezüglich der Sitzfläche zu verschwenken. Gleichzeitig kann eine Fußstütze des Rollstuhls in die gerade Position zur Sitzfläche geschwenkt werden, insbesondere dann, wenn der Patient im Rollstuhl fixiert ist. Der Sitz kann somit der durch die Muskelanspannung initiierten Bewegung des Patienten folgen, so dass die Muskelkraft tatsächlich zu einer Körperstreckung führt und nicht durch Befestigungsmittel zum Fixieren des Patienten aufgefangen wird.Such a wheelchair is intended in particular for the admission under spastic convulsions of suffering persons. In these individuals, uncontrolled impulses are delivered to the musculature, leading to a spasmodic muscle tension, which generally causes a body extension. Such a wheelchair makes it possible by muscle power to pivot the backrest with respect to the seat. At the same time a footrest of the wheelchair can be pivoted in the straight position to the seat, especially if the patient is fixed in a wheelchair. The seat can thus follow the movement of the patient initiated by the muscular tension, so that the muscle force actually leads to a body extension and is not caught by fastening means for fixing the patient.
Ein Rollstuhl der eingangs genannten Art ist aus der
Dieser bekannte Rollstuhl weist diverse Nachteile bezüglich der Lagerung des Sitzteils im Fahrgestell auf. Bedingt ist dies einerseits durch den erhöhten Bau-, Montage- und Kostenaufwand durch Verwendung der Linearführung und die erforderliche Befestigung des Sitzteils. Die Linearführung besteht aus zwei Teilen, wobei das untere Teil mit dem Fahrgestell aufwendig zu befestigen ist. Die Linearführung erlaubt überdies nur eine lineare Führung des oberen Teils der Linearführung relativ zum unteren Teil der Linearführung. Demzufolge ist es zur Verbindung der Linearführung, konkret des oberen Teils der Linearführung mit dem Sitzteil, erforderlich, eine schwenkbare Anlenkung des oberen Teiles der Linearführung an der Sitzfläche vorzusehen. Das Sitzteil ist somit mit dem verschiebbaren Bauteil der Linearführung fest verbunden. Da die Linearführung überdies seitliche Führungskräfte aufnimmt, ist es erforderlich, den Rollstuhl in diesem Bereich mit geringen Toleranzen auszuführen, um Verspannungen von Sitz und Fahrgestell aufgrund der weiteren Lagerung des Sitzteils über das Rückenlehnenteil im Fahrgestell zu verhindern.This known wheelchair has various disadvantages with respect to the storage of the seat part in the chassis. This is due on the one hand by the increased construction, installation and cost by using the linear guide and the required attachment of the seat part. The linear guide consists of two parts, wherein the lower part is expensive to attach to the chassis. The linear guide also allows only a linear guide of the upper part of the linear guide relative to the lower part of the linear guide. Accordingly, it is for connecting the linear guide, specifically the upper part of the linear guide with the seat part, required to provide a pivotable articulation of the upper part of the linear guide on the seat. The seat part is thus firmly connected to the displaceable component of the linear guide. In addition, since the linear guide receives lateral guiding forces, it is necessary to make the wheelchair in this area with small tolerances in order to prevent tension of seat and chassis due to the further storage of the seat part on the backrest part in the chassis.
Aufgabe der vorliegenden Erfindung ist es, einen Rollstuhl der eingangs genannten Art so weiterzubilden, dass bei diesem die vorstehend beschriebenen Nachteile vermieden werden.Object of the present invention is to develop a wheelchair of the type mentioned so that in this the disadvantages described above are avoided.
Gelöst wird die Aufgabe dadurch, dass mindestens ein Auflager mit dem Fahrgestell verbunden ist, auf dem das Sitzteil im Bereich seines dem Rückenwandteil abgewandten Endes lose aufliegt.The object is achieved in that at least one support is connected to the chassis on which the seat part loosely rests in the region of its end remote from the back wall part.
Der erfindungsgemäße Rollstuhl weist somit keine Linearführung auf. Es ist dort das Auflager für das Sitzteil vorgesehen, dass die Funktion hat, die Gewichtskraft des Sitzteils aufzunehmen. Es sind somit, bezüglich des erörterten Standes der Technik, keine, eine bauliche Einheit miteinander bildende Führungen vorzusehen - stationäres Bauteil und verschiebbares Bauteil -. Die seitliche Führungsfunktion für das Sitzteil bzw. den Sitz übernimt das Fahrgestell, beispielsweise zwei parallele Bleche des Fahrgestells, zwischen denen der Sitz angeordnet ist. Das Sitzteil liegt überdies lose auf dem Auflager auf. Es ist damit dort nicht angelenkt. Diese lose Auflage des Sitzteils ermöglicht es das Sitzteil hoch zu klappen, womit die Vorrichtung bei Nichtgebrauch platzsparend untergebracht werden kann. Ein weiterer Vorteil der losen Auflage der Sitzfläche ist darin zu sehen, dass die Möglichkeit besteht, die Lagerung der Auflage im Fahrgestell so weiterzubilden, dass die Auflage in Längsrichtung bezüglich des Sitzteils verstellt werden kann. In der Konsequenz lässt sich damit ein anderer Hebelarm für die Einleitung der Gewichtskraft erreichen, die die Vorrichtung nutzende Person einleitet, um das Moment zum Überführen von Rückenlehnenteil und Sitzteil der Vorrichtung in deren mehr gestreckte Position aufzubringen.The wheelchair according to the invention thus has no linear guide. It is there provided the support for the seat part that has the function to absorb the weight of the seat part. There are thus, with respect to the discussed prior art, no, a structural unit with each other forming guides - stationary component and movable component -. The lateral guide function for the seat part or the seat takes over the chassis, for example, two parallel plates of the chassis, between which the seat is arranged. The seat part is also loosely on the support. It is not articulated there. This loose support of the seat part makes it possible to fold up the seat part, whereby the device can be accommodated space-saving when not in use. Another advantage of the loose pad of the seat is the fact that there is the possibility of storage of the pad in the Further develop the chassis so that the support in the longitudinal direction relative to the seat part can be adjusted. As a consequence, another lever arm for the introduction of the weight force can be achieved, which initiates the person using the device in order to apply the moment for transferring the backrest part and the seat part of the device in its more extended position.
Zweckmäßig sind zwei Auflager vorgesehen, die im Abstand voneinander angeordnet sind und auf denen das Sitzteil aufliegt. Bei Verwendung von zwei Auflagern ist es besonders vorteilhaft, wenn das Sitzteil im Bereich seiner den Rädern des Rollstuhl zugewandten Seiten auf den Auflagern aufliegt. Das Sitzteil ist somit kippstabil gelagert, bezogen auf eine Achse in Längsrichtung des Rollstuhls.Suitably, two supports are provided, which are arranged at a distance from each other and on which the seat part rests. When using two supports, it is particularly advantageous if the seat part rests on the supports in the area of its sides facing the wheels of the wheelchair. The seat part is thus stored tilt-stable, based on an axis in the longitudinal direction of the wheelchair.
Gemäß einer bevorzugten Weiterbildung der Erfindung ist vorgesehen, dass das mindestens eine Auflager horizontal und/oder vertikal verstellbar im Fahrgestell gelagert ist. Die horizontale Verstellbarkeit ermöglicht eine Änderung des Hebelarms für die Einleitung der Gewichtskraft der die Vorrichtung nutzenden Person um das Moment zum Überführen von Rückenlehnenteil und Sitzteil in deren mehr gestreckte Position aufzubringen. Durch horizontales Verstellen des Auflagers lässt sich die Neigung des Sitzteils variieren.According to a preferred embodiment of the invention it is provided that the at least one support is mounted horizontally and / or vertically adjustable in the chassis. The horizontal adjustability allows a change of the lever arm for the initiation of the weight of the person using the device to apply the moment for transferring backrest part and seat part in its more extended position. By horizontally adjusting the support, the inclination of the seat part can be varied.
Vorteilhaft ist das mindestens eine Auflager in einer Stange gelagert, die im Fahrgestell gelagert ist. Diese Stange ist insbesondere in einer Aufnahme des Fahrgestells verschiebbar und festlegbar gelagert. Dies ermöglicht ein einfaches Verstellen des Auflagers, insbesondere in im Wesentlichen horizontaler Richtung.Advantageously, the at least one support is mounted in a rod which is mounted in the chassis. This rod is slidably mounted and fixed in particular in a receptacle of the chassis. This allows a simple adjustment of the support, in particular in a substantially horizontal direction.
Die Verschiebung des Auflagers nach vorne und hinten verändert die Kraft, die erforderlich ist, dass die Person mit dem Sitz in die Streckung gehen kann und bewirkt überdies eine Veränderung der Position der Sitzfläche des Sitzteils, die mehr oder weniger horizontal ist.The displacement of the support forwards and backwards changes the force required for the person to be able to go with the seat in the extension and, moreover, causes a change in the position of the seat surface of the seat part which is more or less horizontal.
In der einfachsten Gestaltung ist die Auflagefläche des das Sitzteil aufnehmenden Auflagers eben ausgebildet, wobei insbesondere die Auflagefläche im Wesentlichen horizontal angeordnet ist. Alternativ kann die das Sitzteil aufnehmende Auflagefläche in einer vertikalen Ebene gekrümmt ausgebildet sein, insbesondere ausgehend von einem im Wesentlichen horizontalen Flächenabschnitt der Auflagefläche. Ist diese Krümmung nach oben gerichtet und bewegt sich dann, wenn die Person das Moment zum Überführen von Rückenlehnenteil und Sitzteil in deren mehr gestreckte Position aufbringt, das Sitzteil entlang der gekrümmten Auflagefläche nach oben, muss die Person eine erhöhte Kraft zum Überführen des Sitzes in die mehr gestreckte Position aufbringen, da sie das Sitzteil aufgrund der geometrischen Vorgabe des Auflagers anheben muss. Unter diesem Aspekt sind unterschiedliche Modifizierungen der Auflagefläche des Auflagers denkbar. Die Auflagefläche kann beispielsweise, bezogen auf eine vertikale Ebene, zueinander abgewinkelt angeordnete Flächenabschnitte aufweisen.In the simplest design, the support surface of the support member receiving the support is flat, in particular, the support surface is arranged substantially horizontally. Alternatively, the support member receiving surface may be formed curved in a vertical plane, in particular starting from a substantially horizontal surface portion of the support surface. If this curvature directed upward and moves when the person applies the moment for transferring the backrest part and seat part in its more extended position, the seat part along the curved support surface up, the person has an increased force to transfer the seat in the Apply more stretched position, as it must raise the seat part due to the geometric specification of the support. In this aspect, different modifications of the support surface of the support are conceivable. The support surface may, for example, based on a vertical plane, have angled to each other arranged surface portions.
Durch die gewinkelte bzw. gekrümmte Gestaltung der Auflagerfläche des Auflagers besteht somit die Möglichkeit das Sitzteil in einer mehr horizontalen Position zu halten, den Widerstand bei der Streckung zu erhöhen und die Überführung des Sitzes in die nicht gestreckte Position von Rückenlehnenteil und Sitzteil zu unterstützen.The angled or curved design of the support surface of the support is thus able to hold the seat part in a more horizontal position to increase the resistance in the extension and to support the transfer of the seat in the unstretched position of the backrest part and seat part.
Eine Weiterbildung der Erfindung sieht vor, dass das Auflager im Wesentlichen horizontal geteilt ist, mit einem unteren im Fahrgestell gelagerten Auflagerteil und einem oberen Auflagerteil, das die Auflagefläche aufweist, wobei zwischen den beiden Auflageteilen ein elastisches Element, insbesondere mindestens eine Druckfeder, angeordnet ist. Aufgrund dieser Gestaltung können dann, wenn die Person die gestreckte Position verlässt, durch die Person in den Rollstuhl eingeleitete Stoßkräfte elastisch abgefedert werden. Es wird hierdurch infolgedessen wirksam vermieden, dass die Person erschrickt und überdies der Rollstuhl schlagartig den eingeleiteten Kräften ausgesetzt wird.A development of the invention provides that the support is substantially horizontally divided, with a lower support member mounted in the chassis and an upper support member having the support surface, wherein between the two support members, an elastic member, in particular at least one compression spring is arranged. Due to this configuration, when the person leaves the extended position, shock forces introduced by the person into the wheelchair can be elastically cushioned. As a result, it is effectively avoided that the person is frightened and, in addition, the wheelchair is abruptly subjected to the initiated forces.
Bei einer baulich bevorzugten Ausgestaltung des Rollstuhls weist das Sitzteil einen Sitzrahmen mit mindestens einer von diesem aufgenommenen Sitzplatte auf, wobei der Sitzrahmen auf dem mindestens einen Auflager aufliegt. Das Rückenlehnenteil weist vorzugsweise einen Rückenlehnenrahmen und mindestens eine von diesem aufgenommene Rückenlehnenplatte auf. An der Sitzplatte und der Rückenlehnenplatte wird das ein- oder mehrteilige eigentliche Sitzpolster befestigt, das somit im Bereich des Oberschenkels und des Rückens der Person platziert ist.In a structurally preferred embodiment of the wheelchair, the seat part has a seat frame with at least one of these seat plate received, wherein the seat frame rests on the at least one support. The backrest part preferably has a backrest frame and at least one backrest plate received by the latter. On the seat plate and the backrest plate, the one or more parts actual seat cushion is attached, which is thus placed in the region of the thigh and the back of the person.
Weitere Merkmale der Erfindung sind in den Unteransprüchen, der Beschreibung der Figuren sowie den Figuren selbst dargestellt, wobei bemerkt wird, dass alle Einzelmerkmale und alle Kombinationen von Einzelmerkmalen erfindungswesentlich sind.Further features of the invention are described in the dependent claims, the description of the figures and the figures themselves, wherein it is noted that all individual features and all combinations of individual features are essential to the invention.
In den Figuren ist die Erfindung anhand mehrerer Ausführungsformen beispielsweise dargestellt, ohne hierauf beschränkt zu sein. Es stellt dar:
Figur 1- eine räumliche Ansicht des Rollstuhls, schräg von vorne gesehen, wobei der Rollstuhl in einer Grundstellung von Sitzteilen und Rückenlehne veranschaulicht ist,
Figur 2- eine Seitenansicht des in
Figur 1 gezeigten Rollstuhls, Figur 3- eine räumliche Ansicht gemäß
Figur 1, die das Fahrgestell des Rollstuhls zeigt, Figur 4- eine räumliche Ansicht gemäß
Figur 1, die den Sitz des Rollstuhls zeigt, Figur 5- eine räumliche Ansicht des Rollstuhls gemäß
Figur 1, veranschaulicht für die gestreckte Stellung von Sitzteil- und Rückenlehnenteil, Figur 6- eine Seitenansicht des in
Figur 5 gezeigten Rollstuhls, Figur 7- eine Seitenansicht des Rollstuhls, veranschaulicht für den Bereich des Auflagers zur Aufnahme des Sitzteils, bei auf dem Auflager aufliegendem Sitzteil,
Figur 8- eine Ansicht gemäß Figur 7, bei von dem Auflager abgehobenem Sitzteil, verdeutlicht für eine angehobene Zwischenstellung des Sitzteils,
Figur 9- eine Seitenansicht eines Ausschnitts des Rollstuhls, veranschaulicht für die Grundstellung von Sitzteil und Rückenlehnenteil, bei modifiziert gestaltetem Auflager,
Figur 10- den in
Figur 9 veranschaulichten Ausschnitt des Rollstuhls, in der Streckstellung von Sitzteil und Rückenlehnenteil, - Figur 11
- eine räumliche Ansicht eines Ausschnitts des Rollstuhls, schräg von vorne gesehen, mit weiter modifizierten Auflagern und
Figur 12- eine Seitenansicht des in Figur 11 gezeigten Ausschnitts des Rollstuhls.
- FIG. 1
- a spatial view of the wheelchair, viewed obliquely from the front, wherein the wheelchair is illustrated in a basic position of seat parts and backrest,
- FIG. 2
- a side view of the wheelchair shown in Figure 1,
- FIG. 3
- 3 shows a spatial view according to FIG. 1, which shows the chassis of the wheelchair,
- FIG. 4
- 3 is a perspective view of the seat of the wheelchair, according to FIG.
- FIG. 5
- 3 shows a perspective view of the wheelchair according to FIG. 1, illustrating the stretched position of the seat part and back part, FIG.
- FIG. 6
- a side view of the wheelchair shown in Figure 5,
- FIG. 7
- a side view of the wheelchair, illustrated for the region of the support for receiving the seat part, with resting on the support seat part,
- FIG. 8
- a view according to FIG. 7, with the seat part lifted off the support, illustrated for a raised intermediate position of the seat part,
- FIG. 9
- a side view of a section of the wheelchair, illustrated for the basic position of the seat part and backrest part, with modified designed support,
- FIG. 10
- the section of the wheelchair illustrated in FIG. 9, in the extended position of the seat part and the backrest part,
- FIG. 11
- a spatial view of a section of the wheelchair, seen obliquely from the front, with further modified supports and
- FIG. 12
- a side view of the section shown in Figure 11 of the wheelchair.
Der Sitz 3 weist ein Rückenlehnenteil 4 und ein Sitzteil 5 auf. Das Rückenlehnenteil 4 weist einen Rahmen 6, der eine Rückenlehnenplatte 7 trägt, sowie zwei seitliche, mit dem Rahmen 6 verbundene Lagerplatten 8 auf. Der Rahmen 6 und die parallel zueinander angeordneten Lagerplatten 8 sind im wesentlichen im rechten Winkel zueinander angeordnet. Im Bereich des Übergangs von Rahmen 6 und Lagerplatte 8 sind in den Lagerplatten 8 mittels eines Zugmechanismus 9 betätigbare Raststifte 10 gelagert. Um diese Raststifte 10 ist der Sitz 3 im Fahrgestell 2 schwenkbar gelagert.The
Das Sitzteil 5 weist einen Rahmen 11 mit zwei zueinander verstellbaren, im Rahmen 11 gelagerten Sitzplatten 12 und zwei parallel zueinander angeordnete sich im wesentlichen senkrecht zu den Sitzplatten 12 erstreckende Lagerplatten 13 auf. Die beiden Lagerplatten 13 sind mittels Bolzen 14 mit den Lagerplatten 8 schwenkbar verbunden.The
Der Rahmen 11 besteht aus den ein- und ausschiebbaren sowie über nicht dargestellte Mittel arretierbaren Rahmenteilen 15 und 16, womit durch die beiden Sitzplatten die Sitzfläche vergrößert bzw. verkleinert werden kann.The frame 11 consists of the retractable and retractable as well as not shown means
Mit dem Rahmenteil 15 des Rahmens 11 sind verlängerbare Stäbe 17 um Achsen 18 schwenkbar verbunden. Die Stäbe 17 nehmen eine Fußstütze 19 auf.With the frame part 15 of the frame 11
Das Fahrgestell 2 weist zwei hintere große Räder 20 und zwei vordere kleine Räder 21 auf, wobei die Räder 21 lenkbar sind. Die Räder 20, 21 sind in einem Rohrrahmen 22 des Fahrgestells 2 gelagert, der Längsstreben und diese verbindende Querstreben aufweist. In den beiden parallel zueinander angeordneten Abschnitten des Rohrrahmens 22 sind auf einander zugewandten Seiten der beanstandeten Abschnitte des Rohrrahmens 22 zwei Steuerplatten 23 in diesen Bereichen des Rohrrahmens 22 gelagert. Diese Steuerplatten 23 sind, bezogen auf die Orientierung des Rollstuhls 1, mit mehreren, im hinteren und oberen Bereich der Steuerplatten 23 angeordneten Löchern 24 versehen, wobei jeweils zwei korrespondierende Löcher 24 der beiden Steuerplatten 23 der Aufnahme der beiden Raststifte 10 des Sitzes 3 dienen. Je nachdem in welches Lochpaar der Löcher 24 die axial verschieblichen Raststifte 10 eingesteckt werden, ergibt sich eine unterschiedliche Schwenkachse des Sitzes 3 bezüglich der Steuerplatten 23.The
Die beiden Steuerplatten 23 sind mittels zweier Querstreben 25 miteinander verbunden. Diese Querstreben 25 nehmen im Bereich der Steuerplatten 23 parallel zu diesen angeordnete Rohrstücke 26 auf, die mit den Querstreben 25 befestigt sind. In das jeweilige Rohrstück 26 ist eine Stange 27 eingesteckt, die mittels nicht gezeigter Klemmmittel in beliebiger eingeschobener bzw. ausgezogener Stellung bezüglich des Rohrstücks 26 positioniert werden kann. Die jeweilige Stange 27 nimmt im Bereich ihres dem Rohrstück abgewandten Endes einen als Auflagerklotz ausgebildetes Auflager 28 mit oberer Auflagefläche 29 auf.The two
Bei dem Rollstuhl 1 ist somit, wie insbesondere der Darstellung der Figur 2 zu entnehmen ist, der Sitz 3 mit seinem Rückenlehnenteil 4 um die Achse der Raststifte 10 schwenkbar in den beiden, Bestandteil des Fahrgestells 2 bildenden Steuerplatten 23 gelagert. Das Sitzteil 5 des Sitzes 3 liegt lose mit dem Querrohr 30 des Rahmenteils 15, allgemein mit dem Rahmenteil 15 oder sogar mit dem Rahmenteil 16 auf den beiden Auflagern 28 auf, je nach Einstellung und Einstellung des Rahmens 11 bzw. der Auflager 28, und kontaktiert hierbei die Auflagefläche 29 der Auflager 28.In the
Aufgrund der schwenkbaren Lagerung des Sitzes 3 über die Raststifte 10 im Fahrgestell 2 und die lose Lagerung des Sitzes 3 in den beiden Auflagern 28 sowie die gelenkige Anlenkung von Rückenlehnenteil 4 und Sitzteil 5 mittels der Bolzen 14 können das Sitzteil 5 und das Rückenlehnenteil 4 unterschiedliche Winkelpositionen zueinander einnehmen und damit die dynamische Funktion des Sitzes bewerkstelligt werden. Im Unterschied zu der Ausgangsstellung des Sitzes 3 gemäß Figur 4, in der das Rückenlehnenteil 4 im wesentlichen im rechten Winkel zum Sitzteil 5 angeordnet ist, veranschaulichen die Figuren 5 und 6 die dynamische Stellung, in der das Sitzteil 5 und das Rückenlehnenteil 4 einen größeren Winkel miteinander einschließen. Diese dynamische Wirkung ergibt sich durch Einleiten eines hierfür erforderlichen Momentes durch die auf dem Rollstuhl 1 sitzende Person, die ihren Körper in eine gestrecktere Stellung überführen will.Due to the pivotal mounting of the
Der Rollstuhl 1 ist zusätzlich mit Mitteln versehen, die den Sitz in der Normalstellung fixieren, somit es nicht erlauben, die dynamische Funktion darzustellen. Unter diesem Aspekt sind die beiden Lagerplatten 8 mit voneinander weg gerichteten, somit nach außen gerichteten Stiften 31 versehen, die in der Normalstellung des Sitzes 3 in Schlitze 32 der Steuerplatten 23 eingreifen, wobei in geringem Abstand zum Grund des jeweiligen Schlitzes 32 ein Arretierstift 33 durch Betätigungsmittel, die einen Drehknopf und einen Seilzug umfassen, in eine Hintergriffsstellung mit dem Arretierstift 33 oder in eine Stellung, in der kein Hintergriff erfolgt, überführbar ist. In der Hintergriffsstellung sind die Stifte 31 festgelegt, so dass die dynamische Funktion nicht verwirklicht werden kann.The
Eine weitere Zusatzfunktion des Rollstuhls 1 ist darin zu sehen, dass über nicht näher dargestellte Mittel die Steuerplatten 23 schwenkbar im Rohrrahmen 22 gelagert sind. Dies ermöglicht es, den Sitz 3 insgesamt, bei Beibehaltung der Funktionalität der dynamischen Stellung, um eine parallel zur Achse der Räder 20 angeordnete Achse zu schwenken. Zum Festlegen der Steuerplatten 23 in der gewünschten Winkelstellung dienen im Rohrrahmen 22 gelagerte Arretiermittel 25, die in eine Raststellung mit der Ausnehmung 36 der Steuerplatten 23 bringbar sind. Diese Arretiermittel 25 sind gleichfalls über nicht dargestellte Mittel betätigbar.Another additional function of the
In einfachster Gestaltung ist die Auflagefläche 29 des jeweiligen Auflagers 28 eben ausgebildet, insbesondere horizontal angeordnet. Aufgrund der Lagerung des Auflagers 28 lässt sich dieses horizontal verschieben und damit der Anlenkpunkt des Sitzes 3, konkret der Anlenkpunkt des Sitzes 3 im Bereich des Rahmens 11 verändern.In the simplest design, the
Eine erste Modifizierung des Auflagers 28 sieht vor, dass es, wie insbesondere der Darstellung der Figur 3 und der Figur 6 zu entnehmen ist, ebene, abgewinkelte Abschnitte 37 und 38 der Auflagefläche 29 aufweist. Demnach kann die Kontaktierung des Auflagers 28 in unterschiedlichen Abschnitten erfolgen, beispielsweise in einem horizontalen und anschließend einem zur horizontalen geneigten Abschnitt, wobei dieser Abschnitt nach oben oder unten geneigt sein kann, je nach den gewünschten Kraftangriffsverhältnissen und damit gewünschten Momenten, die von der Person einzuleiten sind, um die dynamische Funktion zu verifizieren.A first modification of the
Wie zuvor beschrieben liegt das Sitzteil 5 lose auf dem Auflager 8 auf. Figur 8 veranschaulicht das Sitzteil 5 in einer teilweise nach oben geschwenkten Position, in der das Querrohr 30 vom Auflager, konkret den beiden Auflagern 28 abgehoben ist.As described above, the
Die Figuren 9 und 10 zeigen eine modifizierte Ausführungsform. Bei dieser ist die Auflagefläche 29 des jeweiligen Auflagers 28 in der vertikalen Ebene, die mit der Blattebene übereinstimmt, gekrümmt ausgebildet. Diese Auflagefläche 29 besitzt einen im wesentlichen horizontalen Flächenabschnitt und einen sich an diesen in Richtung des Rückenlehnenteils 4 anschließenden gekrümmten Abschnitt, wobei die Krümmung, vom horizontalen Abschnitt ausgehend, nach oben gerichtet ist. Beim Überführen des Sitzes 3 in die gestreckte Stellung, die in Figur 10 veranschaulicht ist, gleitet das Querrohr 30 entlang der gekrümmten Auflageflächen 29 der Auflager 28 nach oben, womit die Person beim Überführen des Sitzes 3 in die gestreckte Stellung das Sitzteil 5 zusätzlich anheben muss und damit ein erhöhtes Moment aufbringen muss.Figures 9 and 10 show a modified embodiment. In this, the
Die Figuren 11 und 12 veranschaulichen eine weitere Modifizierung des jeweiligen Auflagers 28. Das Auflager 28 ist im wesentlichen horizontal geteilt, mit einem unteren, in der Stange 27 gelagerten Auflagerteil 39 und einem oberen Auflagerteil 40, das die Auflagefläche 29 aufweist. Zwischen beiden Auflagerteilen 39 und 40 ist eine Druckfeder 41 angeordnet. Aufgrund dieser Gestaltung werden Kräfte über den Sitz 3 gedämpft in das Auflager 38 eingeleitet.Figures 11 and 12 illustrate a further modification of the
Claims (13)
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- 2006-07-14 EP EP06014661A patent/EP1743613B1/en not_active Not-in-force
- 2006-07-14 AT AT06014670T patent/ATE396683T1/en not_active IP Right Cessation
- 2006-07-14 AT AT06014661T patent/ATE442118T1/en active
- 2006-07-14 EP EP06014670A patent/EP1743612B1/en not_active Not-in-force
- 2006-07-14 DE DE602006009022T patent/DE602006009022D1/en active Active
- 2006-07-14 DE DE502006000823T patent/DE502006000823D1/en active Active
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Publication number | Priority date | Publication date | Assignee | Title |
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DE102008017132B3 (en) * | 2008-04-03 | 2009-05-20 | Meyra Wilhelm Meyer Gmbh & Co. Kg | Rigid framework wheelchair, has connecting element comprising chassis framework, seat support rod and supporting element, and rotatably mounted at front region of seat support rod and at chassis framework that forms four-hinge mechanism |
DE102023201168A1 (en) | 2023-02-13 | 2024-08-14 | Hanse-Medizintechnik Dipl.-Ing. P. Hettmer GmbH | Patient mobilization device |
Also Published As
Publication number | Publication date |
---|---|
EP1743612A3 (en) | 2007-01-24 |
EP1743613B1 (en) | 2009-09-09 |
US7455362B2 (en) | 2008-11-25 |
US20070029857A1 (en) | 2007-02-08 |
ATE396683T1 (en) | 2008-06-15 |
DE502006000823D1 (en) | 2008-07-10 |
EP1743613A1 (en) | 2007-01-17 |
DE602006009022D1 (en) | 2009-10-22 |
ATE442118T1 (en) | 2009-09-15 |
EP1743612B1 (en) | 2008-05-28 |
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