EP3463240B1 - Mobility aid - Google Patents
Mobility aid Download PDFInfo
- Publication number
- EP3463240B1 EP3463240B1 EP17725607.0A EP17725607A EP3463240B1 EP 3463240 B1 EP3463240 B1 EP 3463240B1 EP 17725607 A EP17725607 A EP 17725607A EP 3463240 B1 EP3463240 B1 EP 3463240B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact surface
- body contact
- frame element
- mobility aid
- bores
- 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.)
- Active
Links
- 239000004744 fabric Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 241001272996 Polyphylla fullo Species 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Images
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
- A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
- A61G5/0891—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable having rigid supports, e.g. seat or back supports which retain their shape after folding of the wheelchair
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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
- A61G5/08—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
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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
- A61G5/08—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
-
- 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
- A61G5/122—Rests specially adapted therefor, e.g. for the head or the feet for the back
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
- A61G5/124—Rests specially adapted therefor, e.g. for the head or the feet for pelvis or buttocks
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
- A61G5/128—Rests specially adapted therefor, e.g. for the head or the feet for feet
Definitions
- the invention relates to a mobility aid with a first frame element, a second frame element and a footrest, which is arranged between the first frame element and the second frame element, wherein a distance between the first frame element and the second frame element is adjustable to a use distance, the footrest in a use position is brought and adjustable to a transport distance, wherein the footrest is brought into a transport position, the body contact surface being biased towards the transport position when the body contact surface is in the use position.
- Such mobility aids are for example in the form of a wheelchair from the US 5,186,480 and in the form of walking aids from the DE 296 14 857 U1 , the DE 298 07 151 U1 and the US 2013/0061893 A1 known.
- a body contact surface is understood to mean a surface of the mobility aid which, when the mobility aid is used as intended, comes into direct or indirect contact with the body of the user, for example through a cushion or cushion. It is particularly burdened by the user of the mobility aid.
- This can be, for example, a seat, a backrest, for example a backrest or a lower leg rest, or a footrest.
- These body contact surfaces can be designed as full-surface rigid elements, for example plates, or just be a frame element which is, for example, covered with a fabric or cushion.
- the body contact surface can also be provided with cushion elements, in particular pillows, in order to increase the comfort of the mobility aid for the user.
- a folding mechanism tank as has long been known in particular for wheelchairs from the prior art, is expressly not regarded as a body contact surface. Such a folding mechanism is usually arranged below the seat, but is not burdened by a user sitting on the seat.
- Mobility aids for the purposes of the present invention are orthopedic devices for people with reduced mobility.
- Mobility aids can be, for example, wheelchairs, walking aids or walkers, or buggies or other devices and devices that increase mobility.
- Such devices and in particular foldable wheelchairs have long been known from the prior art.
- the US 8,419,047 B2 a foldable wheelchair.
- the aim of the corresponding folding mechanism is to be able to reduce the distance between the two frame elements for transporting the wheelchair. In this way, the wheelchair can be stowed away for transport to save space.
- the wheelchair known from this prior art has two footrests, which are each connected to only one of the frame elements. The user of the wheelchair can place one foot on each of these footrests during use.
- a fabric panel is stretched between the two frame elements. If the wheelchair is now folded up so that the distance between the two frame elements is set and reduced to the transport distance, the fabric web that is present to support the lower legs folds automatically.
- the two footrests can be folded up so that a space-saving position is achieved.
- EP 0 248 093 A1 such a wheelchair is known. It has a handle underneath the seat, which is accessible through a corresponding opening in the seat. The wheelchair can be folded up by pulling this handle upwards.
- Another foldable wheelchair is from, for example US 2015/0245963 A1 known.
- This wheelchair can also be folded up and brought to a smaller pack size for transport and has two separate footrests, which are each arranged on one of the two frame elements. It is also provided here that the user of the wheelchair places one of his feet on one of the footrests.
- the folding mechanism in the footrest could also be designed such that it is located in the dead center of the folding mechanism in the use position. This means that the position of use is set exactly so that pressure exerted on the outside of the two frame elements and thus also on the footrest, which would otherwise lead to the folding of the wheelchair, does not lead to a movement within the footrest.
- this requires exact compliance with the smallest possible manufacturing tolerances.
- the footrest must be moved past the dead center in order to fold the wheelchair and bring the footrest out of the use position into the transport position.
- the two frame elements would first have to be moved slightly apart from one another before folding can take place.
- the present invention is therefore based on the object of further developing a mobility aid according to the preamble of claim 1 in such a way that the stability of the foldable mobility aid is increased without the disadvantages known from the prior art occurring.
- the invention solves this problem by a mobility aid according to the preamble of claim 1, which is characterized in that the mobility aid has at least one locking device by means of which the body contact surface can be locked in the use position and in that the body contact surface is a footrest.
- the body contact surface can be locked in this use position.
- a locking device can be implemented, for example, by a pin or bolt which snaps into a recess provided for this purpose or behind a corresponding undercut when the use position is reached. It can the pin or bolt, for example, be elastically biased, for example spring-loaded.
- other locking options that are known in principle from the prior art can also be used.
- the locking advantageously takes place automatically when the body contact surface reaches the use position.
- a locking device can also be present which, for example, has to be actuated manually when the body contact surface reaches the use position. This can be achieved, for example, by means of push-button elements, push elements or connecting pins which can be pushed through recesses and / or bores in different components which are brought into line when the body contact surface has reached the use position.
- the body contact surface is biased towards the transport position when the body contact surface is in the use position. This can be done, for example, by a mechanical spring element that is compressed when the body contact surface is in the use position. If the lock is released in this case, the pretension ensures that the body contact surface is moved from the use position towards the transport position. It is not necessary for the pretension to reach this transport position, even if this is entirely possible and possibly advantageous. However, it is important that the prestressing allows the body contact surface to be removed from the use position as soon as the lock that holds the body contact surface in the use position is released. In this way, in particular in the case of automatically locking locking devices, the mobility aid can also be operated and folded with one hand.
- the body contact surface can advantageously be locked in the use position by being loaded in one direction onto the use position.
- a corresponding load for example due to feet placed on the body contact surface, is necessary in order to lock the body contact surface in the use position.
- the body contact surface must be loaded in this direction in order to ensure that the body contact surface actually reaches the use position.
- the mobility aid advantageously has a release device by means of which a locking of the body contact surface in the use position can be released.
- a release device by means of which a locking of the body contact surface in the use position can be released.
- This can be achieved, for example, by an actuating element by means of which a locking element which is snapped into a recess or behind an undercut is removed from this locked position.
- actuating element by means of which a locking element which is snapped into a recess or behind an undercut is removed from this locked position.
- such a removal of the actual locking element from the locking position is sufficient to enable the body contact surface of the mobility aid to be folded up.
- the body contact surface advantageously has at least two folding elements, of which a first folding element is pivotally mounted on the first frame element about a first pivot axis and a second folding element is pivotably mounted on the second frame element about a second pivot axis.
- the two folding elements are pivotally mounted on one another about a further pivot axis, so that the body contact surface can be folded up.
- the body contact surface particularly preferably has a foot rest surface and the first pivot axis and the second pivot axis are arranged at different distances from the foot rest surface.
- this further increases the stability of the body contact surface in the use position and, on the other hand, ensures that a particularly small transport distance between the two frame elements and thus a particularly small packing size is achieved in the transport position of the body contact surface.
- a steering wheel receptacle is advantageously arranged on the first frame element and on the second frame element, on each of which a steering wheel is arranged.
- wheelchairs in particular have two large rear wheels and two smaller front wheels which can be pivoted about a vertical axis. These are called steering wheels.
- the first frame element and the second frame element each have a plurality of bores, adjacent bores being at a first distance from one another and the respective steering wheel receptacle has at least two bores which are at a second distance from one another which is not a multiple of the first distance.
- one of the bores in the frame element is brought into overlap with one of the bores in the steering wheel receptacle.
- a bolt or pin or a screw can be passed through the bores which are thus covered, as a result of which the steering wheel receptacle is attached to the respective frame element.
- the bores in the respective frame element and the bores in the steering wheel receptacle are each arranged equidistantly, the first distance being different from the second distance. This ensures that, despite the fact that the first and second, which may be relatively large, can be manufactured very easily
- the bores in the frame elements and / or the bores in the steering wheel receptacles are advantageously threaded bores. In this case, screws can be inserted directly into the threaded hole without the need for additional fasteners, such as nuts.
- the overall adjustability in steps is 6 mm.
- Figure 1 shows a first frame element 2 and a second frame element 4, between which a footrest 6 is arranged as a body contact surface.
- a footrest 6 is arranged as a body contact surface.
- the configurations can also be used for other body contact surfaces, in particular the body contact surfaces already mentioned at the beginning.
- the footrest is in Figure 1 in the use position so that the distance between the first frame element 2 and the second frame element 4 is the use distance.
- the footrest 6 has a first folding element 8, which is pivotably mounted on the first frame element 2 about a first pivot axis 10, and a second folding element 12, which is pivotably mounted on the second frame element 4 about a second pivot axis 14.
- the first folding element 8 and the second folding element 12 are pivotally mounted to one another about a further pivot axis 16.
- a locking device 18 through which the footrest 6 in the in Figure 1 shown use position is lockable.
- a spring element 20 which, when the footrest 6 is transferred into the Figure 1 shown use position was biased and now the footrest 6 biased into the transport position.
- FIG. 2 shows the situation Figure 1 , wherein the locking device 18 has been released. It can be seen that the spring element 20 has relaxed and the two folding elements 8, 12 from the in Figure 1 shown use position has moved out.
- the first pivot axis 10 and the second pivot axis 14 are not at the same height, but at different distances from a support surface 22 which is arranged on the second folding element 12. This will increase stability in the Figure 1 shown use position increased and also achieved a smaller pack size.
- On the first frame element 2 and on the second frame element 4, as already in FIG Figure 1 In each case a steering wheel receptacle 24 is arranged, on each of which a steering wheel of the mobility device can be arranged.
- Figure 3 shows the situation in a further folded position.
- the two folding elements 8, 12 have been pivoted further relative to one another about the further pivot axis 16. It can now be seen more clearly that the first pivot axis 10 and the second pivot axis 14 are arranged at different heights on the first frame element 2 and on the second frame element 4.
- Figure 4 shows the footrest 6 in the transport position.
- the two folding elements 8, 12 abut each other almost parallel. Since the first pivot axis 10 and the second pivot axis 14 are arranged at different distances from the footrest surface 22 in the use position, the two frame elements 2, 4 can be arranged as in FIG Figure 4 shown, are arranged very close to each other without the two pivot axes 10, 14 being in the way.
- Figure 5 shows an enlarged view of part of the in Figure 2 shown situation.
- the first frame element 2 can be seen, on which the first folding element 8 is pivotable about the first pivot axis 10.
- the end of the footrest surface 22, which is part of the second folding element 12, is also shown.
- the locking device 18 On the underside of the second folding element 12 is the locking device 18, which has a locking element 26 which is locked in by a spring 28 Figure 5 pin biased to the left. He has a beveled front 30 so that it can slide along a designated edge 32 when the footrest 6 is brought into the use position.
- end of the second folding element 12 moves downward and the locking element 26 slides with its front 30 from the edge 32 and is moved against the spring 28 to the right.
- Figure 6 shows the arrangement in an enlarged view from a different perspective.
- An underside 34 of the second folding element 12 can be seen.
- the locking device 18 with the locking element 26, which has the beveled front side 30, is located there.
- the spring 28 pushes the locking element 26 in Figure 6 up.
- Figure 7 shows the situation Figure 5 from a different perspective.
- the locking device 18 with the locking element 26 and the spring 28 can be seen. It can be seen that the hook element 36 is arranged in the recess 40 and has an enlarged head, so that it is not possible to move it out of the recess 40.
- the actuating element 38 can thus be used to move the locking element 26 against the spring 28.
- Figure 8 shows the first frame element 2, on which a steering wheel receptacle 24 is located.
- There are a plurality of bores 44 on the first frame element 2 are arranged equidistantly and have a first distance from one another.
- Figure 9 shows an enlarged sectional view through the first frame element 2 and the steering wheel receptacle 24.
- the bores 44 in the first frame element 2 and the two bores 46 in the steering wheel receptacle 24 can be seen. Since the second distance between the bores 46 is not a multiple of the first distance between the bores 44 , only one of the screw elements 48, which are located in the bores 46, can be screwed into a bore 44. In Figure 9 this is the lower screw element 48.
- the upper screw element 48 is moved in the bore 46 until it lies against the wall of the first frame element 2. Due to the special design of the distances between the bores 44 and the bores 46, a particularly fine adjustability of the position of the steering wheel receptacle 24 on the first frame element 2 is achieved.
- the steering wheel receptacle 24 is attached analogously to the second frame element 4.
- the Figures 10 to 12 show different views of a footrest 6 according to a further embodiment of the present invention.
- the first folding element 8 can be pivoted about the first pivot axis 10 and is connected via the further pivot axis 16 to the second folding element 12, which can be pivoted via a second pivot axis 14.
- the actuating element 18 can be seen, by means of which the locking device 18 is brought from the locked state into the unlocked state.
- the locking device 18 has a locking element 26, which is deformed elastically when the second folding element 12 is lowered relative to the first folding element 8 and snaps into a locking undercut 50 when the locking position shown in FIG Figure 12 is achieved.
- the actuating element 38 can then be reached through an opening 52 in the second folding element 12, as shown in FIG Figure 12 is shown.
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Description
Die Erfindung betrifft eine Mobilitätshilfe mit einem ersten Rahmenelement, einem zweiten Rahmenelement und einer Fußraste, die zwischen dem ersten Rahmenelement und dem zweiten Rahmenelement angeordnet ist, wobei ein Abstand zwischen dem ersten Rahmenelement und dem zweiten Rahmenelement auf einen Gebrauchsabstand einstellbar ist, wobei die Fußraste in eine Gebrauchsposition gebracht wird, und auf einen Transportabstand einstellbar ist, wobei die Fußraste in eine Transportposition gebracht wird, wobei die Körperkontaktfläche in Richtung auf die Transportposition vorgespannt ist, wenn sich die Körperkontaktfläche in der Gebrauchsposition befindet.The invention relates to a mobility aid with a first frame element, a second frame element and a footrest, which is arranged between the first frame element and the second frame element, wherein a distance between the first frame element and the second frame element is adjustable to a use distance, the footrest in a use position is brought and adjustable to a transport distance, wherein the footrest is brought into a transport position, the body contact surface being biased towards the transport position when the body contact surface is in the use position.
Derartige Mobilitätshilfen sind beispielsweise in Form eines Rollstuhles aus der
Unter einer Körperkontaktfläche wird im Rahmen der vorliegenden Erfindung eine Fläche der Mobilitätshilfe verstanden, die bei bestimmungsgemäßer Verwendung der Mobilitätshilfe mit dem Körper des Verwenders direkt oder indirekt, beispielsweise durch ein Polster oder Kissen in Kontakt kommt. Sie wird insbesondere durch den Verwender der Mobilitätshilfe belastet. Dies kann beispielsweise eine Sitzfläche, eine Lehne, beispielsweise eine Rückenlehne oder eine Unterschenkellehne, oder eine Fußraste sein. Diese Körperkontaktflächen können als vollflächige starre Elemente, beispielsweise Platten, ausgebildet sein oder lediglich ein Rahmenelement sein, das beispielsweise mit einem Stoff oder Kissen bespannt ist. Selbstverständlich kann die Körperkontaktfläche auch mit Polsterelementen, insbesondere Kissen, versehen sein, um den Komfort der Mobilitätshilfe für den Benutzer zu erhöhen. Ausdrücklich nicht als Körperkontaktfläche wird eine Faltmechank angesehen, wie sie insbesondere für Rollstühle aus dem Stand der Technik seit langem bekannt ist. Eine solche Faltmechanik ist meist unterhalb der Sitzfläche angeordnet, wird jedoch durch einen auf der Sitzfläche sitzenden Verwender nicht belastet.In the context of the present invention, a body contact surface is understood to mean a surface of the mobility aid which, when the mobility aid is used as intended, comes into direct or indirect contact with the body of the user, for example through a cushion or cushion. It is particularly burdened by the user of the mobility aid. This can be, for example, a seat, a backrest, for example a backrest or a lower leg rest, or a footrest. These body contact surfaces can be designed as full-surface rigid elements, for example plates, or just be a frame element which is, for example, covered with a fabric or cushion. Of course, the body contact surface can also be provided with cushion elements, in particular pillows, in order to increase the comfort of the mobility aid for the user. A folding mechanism tank, as has long been known in particular for wheelchairs from the prior art, is expressly not regarded as a body contact surface. Such a folding mechanism is usually arranged below the seat, but is not burdened by a user sitting on the seat.
Mobilitätshilfen im Sinne der vorliegenden Erfindung sind orthopädietechnische Vorrichtungen für Personen mit eingeschränkter Mobilität. Mobilitätshilfen können beispielsweise Rollstühle, Laufhilfen oder Rollatoren, oder Buggys oder andere, die Mobilität erhöhende Vorrichtungen und Geräte sein. Derartige Vorrichtungen und insbesondere faltbare Rollstühle sind aus dem Stand der Technik seit langem bekannt. So zeigt beispielsweise die
Der aus diesem Stand der Technik bekannte Rollstuhl verfügt über zwei Fußrasten, die jeweils nur mit einem der Rahmenelemente verbunden sind. Auf jede diese Fußrasten kann der Benutzer des Rollstuhles während der Benutzung jeweils einen Fuß abstellen. Zum Abstützen der Unterschenkel ist eine Stoffbahn zwischen den beiden Rahmenelementen gespannt. Wird nun der Rollstuhl zusammengefaltet, so dass der Abstand zwischen den beiden Rahmenelementen auf den Transportabstand eingestellt und reduziert wird, faltet sich die zur Abstützung der Unterschenkel vorhandene Stoffbahn automatisch mit. Die beiden Fußrasten können nach oben geklappt werden, so dass eine platzsparende Position erreicht wird. Aus der
Ein weiterer faltbarer Rollstuhl ist beispielsweise aus der
Nachteilig ist bei dieser Art der Fußraste jedoch, dass durch die beiden separaten Fußrasten keine zusätzliche Stabilisierung des Rollstuhles erfolgen kann. Eine Verbindung zwischen den beiden Rahmenelementen wird durch diese Fußrasten nicht erreicht. Oftmals machen diese Rollstühle für den Benutzer jedoch aufgrund ihrer Faltmechanik und der dadurch vorhandenen Vielzahl von Gelenken und Schwenkmöglichkeiten einen etwas unsicheren Eindruck. Um dies zu verhindern wird in der
Nachteilig ist jedoch, dass eine derartige Fußraste von oben belastet werden muss, um einen Beitrag zur Stabilität des Rollstuhles zu liefern. Dies ist insbesondere für Personen, bei denen ein oder beide Unterschenkel amputiert wurden, nicht möglich, so dass insbesondere für diese Personen eine zusätzliche Stabilisierung des Rollstuhles nicht erreicht werden kann. Alternativ dazu könnte die Faltmechanik in der Fußraste auch so ausgebildet sein, dass sie sich in der Gebrauchsposition im Totpunkt der Faltmechanik befindet. Dies bedeutet, dass die Gebrauchsposition genau so eingestellt wird, dass ein von außen auf die beiden Rahmenelemente und damit auch auf die Fußraste aufgebrachter Druck, der ansonsten zum Zusammenfalten des Rollstuhles führen würden, nicht zu einer Bewegung innerhalb der Fußraste führt. Dies erfordert jedoch eine genaue Einhaltung möglichst geringer Fertigungstoleranzen.However, it is disadvantageous that such a footrest must be loaded from above in order to make a contribution to the stability of the wheelchair. This is not possible, in particular for people in whom one or both lower legs have been amputated, so that an additional stabilization of the wheelchair cannot be achieved for these people in particular. As an alternative to this, the folding mechanism in the footrest could also be designed such that it is located in the dead center of the folding mechanism in the use position. This means that the position of use is set exactly so that pressure exerted on the outside of the two frame elements and thus also on the footrest, which would otherwise lead to the folding of the wheelchair, does not lead to a movement within the footrest. However, this requires exact compliance with the smallest possible manufacturing tolerances.
Befindet sich die Fußraste in der Gebrauchsposition kurz vor dem Punkt, wird sie also beim Überführen aus der Transportposition in die Gebrauchsposition nur bis kurz vor den Totpunkt der Faltkonstruktion entfaltet, hätte ein von außen aufgebrachter Druck zur Folge, dass die Fußraste zusammengefaltet wird und die Rahmenelemente aufeinander zubewegt werden. Wird die Fußraste hingegen über den Totpunkt hinweg entfaltet würde ein versehentliches Zusammenfalten des Rollstuhles bei einem von außen auf die Rahmenelemente aufgebrachten Druckes sicher vermieden werden. Allerdings führt eine derartige Anordnung oftmals zu einem Spiel innerhalb der Faltmechanik der Fußraste und somit zu einem Klappern. Auch wenn in diesem Fall die Stabilität des Rollstuhles erhöht werden würde, hätte dieses Klappern zur Folge, dass ein Unsicherheitsgefühl beim Benutzer des Rollstuhles entsteht und der Rollstuhl qualitativ minderwertig erscheinen könnte. Zudem muss bei dieser Art der Ausgestaltung die Fußraste über den Totpunkt hinweg bewegt werden, um den Rollstuhl zusammenzufalten und die Fußraste aus der Gebrauchsposition in die Transportposition zu bringen. Dazu müssten folglich die beiden Rahmenelemente zunächst minimal voneinander weg bewegt werden, bevor ein Zusammenfalten erfolgen kann.If the footrest is in the position of use just before the point, i.e. if it is deployed from the transport position to the position of use only shortly before the dead center of the folding construction, external pressure would result in the footrest and the frame elements being folded up be moved towards each other. If, on the other hand, the footrest is deployed beyond the dead center, the wheelchair would inadvertently fold together when pressure was applied to the frame elements from the outside be safely avoided. However, such an arrangement often leads to play within the folding mechanism of the footrest and thus to rattling. Even if the stability of the wheelchair were increased in this case, this rattling would result in a feeling of insecurity among the user of the wheelchair and the wheelchair could appear to be of poor quality. In addition, with this type of design, the footrest must be moved past the dead center in order to fold the wheelchair and bring the footrest out of the use position into the transport position. To do this, the two frame elements would first have to be moved slightly apart from one another before folding can take place.
Der vorliegenden Erfindung liegt folglich die Aufgabe zugrunde, eine Mobilitätshilfe gemäß dem Oberbegriff des Anspruchs 1 so weiter zu entwickeln, dass eine Stabilität der faltbaren Mobilitätshilfe erhöht wird, ohne dass die aus dem Stand der Technik bekannten Nachteile auftreten.The present invention is therefore based on the object of further developing a mobility aid according to the preamble of claim 1 in such a way that the stability of the foldable mobility aid is increased without the disadvantages known from the prior art occurring.
Die Erfindung löst die gestellte Aufgabe durch eine Mobilitätshilfe gemäß dem Oberbegriff des Anspruchs 1, die sich dadurch auszeichnet, dass die Mobilitätshilfe wenigstens eine Verriegelungseinrichtung aufweist, durch die die Körperkontaktfläche in der Gebrauchsposition verriegelbar ist und dadurch, dass die Körperkontaktfläche eine Fußraste ist..The invention solves this problem by a mobility aid according to the preamble of claim 1, which is characterized in that the mobility aid has at least one locking device by means of which the body contact surface can be locked in the use position and in that the body contact surface is a footrest.
Wird die erfindungsgemäße Mobilitätshilfe folglich auseinander gefaltet und die Körperkontaktfläche aus der Transportposition, in der sie ein geringes Packmaß der Mobilitätshilfe erlaubt, in die Gebrauchsposition gebracht, kann die Körperkontaktfläche in dieser Gebrauchsposition verriegelt werden. Dies bedeutet, dass die Körperkontaktfläche nicht aus der Gebrauchsposition in die Transportposition überführt werden kann, ohne die Verriegelung zu lösen. Eine solche Verriegelungseinrichtung kann beispielsweise durch einen Stift oder Bolzen verwirklicht werden, der bei Erreichen der Gebrauchsposition in eine dafür vorgesehene Ausnehmung oder hinter eine entsprechende Hinterschneidung schnappt. Dabei kann der Stift oder Bolzen beispielsweise elastisch vorgespannt, beispielsweise federbelastet, sein. Selbstverständlich sind auch andere Möglichkeiten der Verriegelung, die prinzipiell aus dem Stand der Technik bekannt sind, einsetzbar.If the mobility aid according to the invention is consequently folded apart and the body contact surface is moved from the transport position in which it allows a small pack size of the mobility aid to the use position, the body contact surface can be locked in this use position. This means that the body contact surface cannot be transferred from the use position to the transport position without releasing the lock. Such a locking device can be implemented, for example, by a pin or bolt which snaps into a recess provided for this purpose or behind a corresponding undercut when the use position is reached. It can the pin or bolt, for example, be elastically biased, for example spring-loaded. Of course, other locking options that are known in principle from the prior art can also be used.
Vorteilhafterweise erfolgt die Verriegelung automatisch, wenn die Körperkontaktfläche die Gebrauchsposition erreicht. Alternativ oder zusätzlich dazu kann auch eine Verriegelungseinrichtung vorhanden sein, die beispielsweise manuell betätigt werden muss, wenn die Körperkontaktfläche die Gebrauchsposition erreicht. Dies kann beispielsweise über Druckknopfelemente, Druckelemente oder Verbindungsstift erreicht werden, die durch in Überdeckung gebrachte Ausnehmungen und/oder Bohrungen in unterschiedlichen Bauteilen hindurchgeschoben werden können, wenn die Körperkontaktfläche die Gebrauchsposition erreicht hat.The locking advantageously takes place automatically when the body contact surface reaches the use position. As an alternative or in addition to this, a locking device can also be present which, for example, has to be actuated manually when the body contact surface reaches the use position. This can be achieved, for example, by means of push-button elements, push elements or connecting pins which can be pushed through recesses and / or bores in different components which are brought into line when the body contact surface has reached the use position.
Erfindungsgemäß ist die Körperkontaktfläche in Richtung auf die Transportposition vorgespannt, wenn sich die Körperkontaktfläche in der Gebrauchsposition befindet. Dies kann beispielsweise durch ein mechanisches Federelement geschehen, das komprimiert wird, wenn sich die Körperkontaktfläche in der Gebrauchsposition befindet. Wird in diesem Fall die Verriegelung gelöst sorgt die Vorspannung dafür, dass die Körperkontaktfläche aus der Gebrauchsposition in Richtung auf die Transportposition bewegt wird. Dabei ist es nicht notwendig, dass sie durch die Vorspannung diese Transportposition erreicht, auch wenn dies durchaus möglich und gegebenenfalls vorteilhaft ist. Wichtig ist jedoch, dass durch die Vorspannung die Körperkontaktfläche aus der Gebrauchsposition entfernt werden kann, sobald die Verriegelung, die die Körperkontaktfläche in der Gebrauchsposition hält, gelöst wird. Damit wird insbesondere bei automatisch verriegelnden Verriegelungseinrichtungen erreicht, dass die Mobilitätshilfe auch einhändig bedienbar und zusammenfaltbar ist. Beim Lösen der Verriegelung, die durch die Verriegelungseinrichtung hervorgerufen wird, wird die Körperkontaktfläche folglich aus der Gebrauchsposition entfernt und in Richtung auf die Transportposition bewegt, so dass ein erneutes Verriegeln in diesem Fall sicher ausgeschlossen wird, da sich die Körperkontaktfläche nicht mehr in der Gebrauchsposition befindet.According to the invention, the body contact surface is biased towards the transport position when the body contact surface is in the use position. This can be done, for example, by a mechanical spring element that is compressed when the body contact surface is in the use position. If the lock is released in this case, the pretension ensures that the body contact surface is moved from the use position towards the transport position. It is not necessary for the pretension to reach this transport position, even if this is entirely possible and possibly advantageous. However, it is important that the prestressing allows the body contact surface to be removed from the use position as soon as the lock that holds the body contact surface in the use position is released. In this way, in particular in the case of automatically locking locking devices, the mobility aid can also be operated and folded with one hand. When the lock, which is caused by the locking device, is released, the body contact surface is consequently removed from the use position and moved in the direction of the transport position, so that re-locking is reliably ruled out in this case, since the body contact surface is no longer in the use position .
Vorteilhafterweise ist die Körperkontaktfläche in der Gebrauchsposition verriegelbar, indem sie in einer Richtung auf die Gebrauchsposition belastet wird. In diesem Fall ist eine entsprechende Belastung, beispielweise durch auf die Körperkontaktfläche aufgestellte Füße, notwendig, um die Körperkontaktfläche in der Gebrauchsposition zu verriegeln. Dies bedeutet nicht notwendig, dass durch die Belastung die Verriegelungseinrichtung betätigt wird, auch wenn dies möglich und gegebenenfalls vorteilhaft ist. In einer anderen Ausgestaltung muss die Körperkontaktfläche in diese Richtung belastet werden, um dafür zu sorgen, dass die Körperkontaktfläche die Gebrauchsposition tatsächlich erreicht. Durch das einfache Auseinanderfalten der Mobilitätshilfe und damit dem Überführen der Körperkontaktfläche aus der Transportposition in die Gebrauchsposition erreicht die Körperkontaktfläche diese Gebrauchsposition gegebenenfalls nicht, was durch eine entsprechende Belastung in Richtung auf die Gebrauchsposition geändert wird. Dadurch erreicht die Körperkontaktfläche die Gebrauchsposition und eine automatische einschnappende oder verriegelnde Verriegelungseinrichtung wird betätigt.The body contact surface can advantageously be locked in the use position by being loaded in one direction onto the use position. In this case, a corresponding load, for example due to feet placed on the body contact surface, is necessary in order to lock the body contact surface in the use position. This does not necessarily mean that the locking device is actuated by the load, even if this is possible and possibly advantageous. In another embodiment, the body contact surface must be loaded in this direction in order to ensure that the body contact surface actually reaches the use position. By simply unfolding the mobility aid and thus transferring the body contact surface from the transport position into the use position, the body contact surface may not reach this use position, which is changed by a corresponding load in the direction of the use position. As a result, the body contact surface reaches the use position and an automatic snap-in or locking locking device is actuated.
Vorteilhafterweise verfügt die Mobilitätshilfe über eine Löseinrichtung, durch die eine Verriegelung der Körperkontaktfläche in der Gebrauchsposition lösbar ist. Dies kann beispielsweise durch ein Betätigungselement erreicht werden, durch das ein in eine Ausnehmung oder hinter eine Hinterschneidung geschnapptes Verriegelungselement aus dieser eingerasteten Position entfernt wird. Insbesondere für den Fall, dass die Körperkontaktfläche in der Gebrauchsposition in Richtung auf die Transportposition vorgespannt ist, ist ein solches Entfernen des eigentlichen Verriegelungselementes aus der Verriegelungsposition ausreichend, um ein Zusammenfalten der Körperkontaktfläche der Mobilitätshilfe zu ermöglichen.The mobility aid advantageously has a release device by means of which a locking of the body contact surface in the use position can be released. This can be achieved, for example, by an actuating element by means of which a locking element which is snapped into a recess or behind an undercut is removed from this locked position. In particular, in the event that the body contact surface is prestressed in the use position in the direction of the transport position, such a removal of the actual locking element from the locking position is sufficient to enable the body contact surface of the mobility aid to be folded up.
Vorteilhafterweise verfügt die Körperkontaktfläche über wenigstens zwei Klappelemente, von denen ein erstes Klappelement an dem ersten Rahmenelement um eine erste Schwenkachse schwenkbar gelagert ist und ein zweites Klappelement an dem zweiten Rahmenelement um eine zweite Schwenkachse schwenkbar gelagert ist. Die beiden Klappelemente sind aneinander um eine weitere Schwenkachse schwenkbar gelagert, so dass ein Zusammenfalten der Körperkontaktfläche möglich ist.The body contact surface advantageously has at least two folding elements, of which a first folding element is pivotally mounted on the first frame element about a first pivot axis and a second folding element is pivotably mounted on the second frame element about a second pivot axis. The two folding elements are pivotally mounted on one another about a further pivot axis, so that the body contact surface can be folded up.
Besonders bevorzugt verfügt die Körperkontaktfläche über eine Fußauflagefläche und die erste Schwenkachse und die zweite Schwenkachse sind in unterschiedlichen Abständen von der Fußauflagefläche angeordnet. Bei einer auf einem ebenen Untergrund stehenden Mobilitätshilfe bedeutet dies, dass die erste Schwenkachse und die zweite Schwenkachse auch in unterschiedlichen Abständen von diesem Boden angeordnet sind. Dadurch wird einerseits die Stabilität der Körperkontaktfläche in der Gebrauchsposition weiter erhöht und andererseits erreicht, dass in der Transportposition der Körperkontaktfläche ein besonders kleiner Transportabstand zwischen den beiden Rahmenelementen und damit ein besonders kleines Packmaß erreicht wird.The body contact surface particularly preferably has a foot rest surface and the first pivot axis and the second pivot axis are arranged at different distances from the foot rest surface. In the case of a mobility aid standing on a flat surface, this means that the first pivot axis and the second pivot axis are also arranged at different distances from this floor. On the one hand, this further increases the stability of the body contact surface in the use position and, on the other hand, ensures that a particularly small transport distance between the two frame elements and thus a particularly small packing size is achieved in the transport position of the body contact surface.
Vorteilhafterweise ist an dem ersten Rahmenelement und an dem zweiten Rahmenelement jeweils eine Lenkradaufnahme angeordnet, an der jeweils ein Lenkrad angeordnet ist. Herkömmlicherweise verfügen insbesondere Rollstühle über zwei große Hinterräder und zwei kleinere Vorderräder, die um eine Hochachse schenkbar angeordnet sind. Diese werden Lenkräder genannt.A steering wheel receptacle is advantageously arranged on the first frame element and on the second frame element, on each of which a steering wheel is arranged. Conventionally, wheelchairs in particular have two large rear wheels and two smaller front wheels which can be pivoted about a vertical axis. These are called steering wheels.
Vorzugsweise verfügt das erste Rahmenelement und das zweite Rahmenelement jeweils über eine Mehrzahl von Bohrungen, wobei benachbarte Bohrungen einen ersten Abstand voneinander aufweisen und die jeweilige Lenkradaufnahme verfügt über wenigstens zwei Bohrungen, die einen zweiten Abstand voneinander aufweisen, der kein Vielfaches des ersten Abstandes ist. Um nun die Lenkradaufnahme an dem jeweiligen Rahmenelement anzuordnen wird eine der Bohrungen im Rahmenelement mit einer der Bohrungen der Lenkradaufnahme in Überdeckung gebracht. Anschließend kann ein Bolzen oder Stift oder eine Schraube durch die so in Überdeckung gebrachten Bohrungen hindurchgeführt werden, wodurch die Lenkradaufnahme an dem jeweiligen Rahmenelement befestigt wird. Die Bohrungen im jeweiligen Rahmenelement und die Bohrungen in der Lenkradaufnahme sind jeweils äquidistant angeordnet, wobei der erste Abstand verschieden vom zweiten Abstand ist. Dadurch wird erreicht, dass trotz der sehr einfachen Herstellbarkeit der gegebenenfalls relativ groß ausgebildeten ersten und zweitenPreferably, the first frame element and the second frame element each have a plurality of bores, adjacent bores being at a first distance from one another and the respective steering wheel receptacle has at least two bores which are at a second distance from one another which is not a multiple of the first distance. In order to arrange the steering wheel receptacle on the respective frame element, one of the bores in the frame element is brought into overlap with one of the bores in the steering wheel receptacle. Subsequently, a bolt or pin or a screw can be passed through the bores which are thus covered, as a result of which the steering wheel receptacle is attached to the respective frame element. The bores in the respective frame element and the bores in the steering wheel receptacle are each arranged equidistantly, the first distance being different from the second distance. This ensures that, despite the fact that the first and second, which may be relatively large, can be manufactured very easily
Abstände eine sehr feine Einstellbarkeit der Position der Lenkradaufnahme am jeweiligen Rahmenelement erreicht wird. Damit kann die Position der Lenkradaufnahme und damit die Höhe der Körperkontaktfläche über dem Boden individuell sehr fein eingestellt werden, ohne dass ein konstruktiv großer Aufwand betrieben werden müsste.Distances a very fine adjustability of the position of the steering wheel holder on the respective frame element is achieved. This allows the position of the steering wheel mount and thus the height of the body contact surface above the floor to be individually adjusted very finely, without the need for a great deal of construction.
Vorteilhafterweise sind die Bohrungen in den Rahmenelementen und/oder die Bohrungen in den Lenkradaufnahmen Gewindebohrungen. In diesem Fall können Schrauben direkt in die Gewindebohrung eingesetzt werden, ohne dass weitere Befestigungselemente, beispielsweise Muttern, nötig wären.The bores in the frame elements and / or the bores in the steering wheel receptacles are advantageously threaded bores. In this case, screws can be inserted directly into the threaded hole without the need for additional fasteners, such as nuts.
Beträgt der erste Abstand, in dem benachbarte Bohrungen an einem der Rahmenelemente angeordnet sind, beispielsweise 12 mm und der Abstand zwischen zwei Bohrungen der Lenkradaufnahme 30 mm, ergibt sich insgesamt eine Einstellbarkeit in Schritten von 6 mm.If the first distance in which adjacent bores are arranged on one of the frame elements, for example 12 mm, and the distance between two bores of the steering wheel receptacle is 30 mm, the overall adjustability in steps is 6 mm.
Mit Hilfe der beigefügten Zeichnungen wird nachfolgend ein Ausführungsbeispiel der vorliegenden Erfindung näher erläutert. Es zeigt:
- Figur 1
- - die schematische Darstellung einer Fußraste in der Gebrauchsposition,
Figur 2- - die schematische Darstellung der Fußraste aus
Figur 1 im entriegelten Zustand, - Figur 3
- - die Fußraste aus den
Figuren 1 und2 im teilweise zusammengeklappten Zustand, Figur 4- - die Fußraste in der Transportposition,
Figur 5- - einen vergrößerten Ausschnitt aus einem Teil der Fußraste,
Figur 6- - den Teil einer Verriegelungseinrichtung,
- Figur 7
- - einen Ausschnitt aus einer Fußraste in einer weiteren Ansicht,
Figur 8- - einen vergrößerten Ausschnitt einer Mobilitätshilfe gemäß einem Ausführungsbeispiel der vorliegenden Erfindung,
- Figur 9
- - eine Schnittdarstellung durch ein Rahmenelement und eine Lenkradaufnahme und
- Figuren 10-12
- - schematische Darstellungen einer Fußraste eines weiteren Ausführungsbeispieles der vorliegenden Erfindung in unterschiedlichen Ansichten.
- Figure 1
- - the schematic representation of a footrest in the use position,
- Figure 2
- - The schematic representation of the footrest
Figure 1 in the unlocked state, - Figure 3
- - the footrest from the
Figures 1 and2nd partially collapsed, - Figure 4
- - the footrest in the transport position,
- Figure 5
- - an enlarged section of part of the footrest,
- Figure 6
- - the part of a locking device,
- Figure 7
- a section of a footrest in a further view,
- Figure 8
- an enlarged section of a mobility aid according to an embodiment of the present invention,
- Figure 9
- - A sectional view through a frame element and a steering wheel receptacle and
- Figures 10-12
- - Schematic representations of a footrest of another embodiment of the present invention in different views.
Die Fußraste 6 verfügt über ein erstes Klappelement 8, das am ersten Rahmenelement 2 um eine erste Schwenkachse 10 schwenkbar gelagert ist, und über ein zweites Klappelement 12, das am zweiten Rahmenelement 4 um eine zweite Schwenkachse 14 schwenkbar gelagert ist. Das erste Klappelement 8 und das zweite Klappelement 12 sind aneinander um eine weitere Schwenkachse 16 herum schwenkbar gelagert.The
An dem zweiten Rahmenelement 4 abgewandten Ende des zweiten Klappelementes 12 befindet sich eine Verriegelungseinrichtung 18, durch die die Fußraste 6 in der in
An der Vorderseite 30 abgewandten Ende des Verriegelungselementes 26 befindet sich ein Hakenelement 36, das in eine dafür vorgesehene Ausnehmung in einem Betätigungselement 38 eingreift. Wird das Betätigungselement 38 mit seinem in
Die
- 22nd
- erstes Rahmenelementfirst frame element
- 44th
- zweites Rahmenelementsecond frame element
- 66
- FußrasteFootrest
- 88th
- erstes Klappelementfirst folding element
- 1010th
- erste Schwenkachsefirst pivot axis
- 1212th
- zweites Klappelementsecond folding element
- 1414
- zweite Schwenkachsesecond pivot axis
- 1616
- weitere Schwenkachsefurther swivel axis
- 1818th
- VerriegelungseinrichtungLocking device
- 2020th
- FederelementSpring element
- 2222
- FußauflageflächeFootrest
- 2424th
- LenkradaufnahmeSteering wheel mount
- 2626
- VerriegelungselementLocking element
- 2828
- Federfeather
- 3030th
- Vorderseitefront
- 3232
- KanteEdge
- 3434
- Unterseitebottom
- 3636
- HakenelementHook element
- 3838
- BetätigungselementActuator
- 4040
- AusnehmungRecess
- 4242
- VerriegelungsbohrungLocking hole
- 4444
- Bohrungdrilling
- 4646
- Bohrungdrilling
- 4848
- SchraubelementScrew element
- 5050
- RasthinterschneidungLocking undercut
- 5252
- Öffnungopening
Claims (8)
- A mobility aid witha first frame element (2),a second frame element (4) andat least one body contact surface, which is arranged between the first frame element (2) and the second frame element (4),wherein a distance between the first frame element (2) and the second frame element (4)- can be adjusted to a usage distance, wherein the body contact surface is brought into a usage position, and- can be adjusted to a transport distance, wherein the body contact surface is brought into a transport position,wherein the mobility aid comprises at least one locking device (18), by way of which the body contact surface can be locked in the usage position,
characterized by the fact that the body contact surface is pre-tensioned towards the transport position when the body contact surface is in the usage position. - The mobility aid according to claim 1, characterized by the fact that the body contact surface can be locked in the usage position, in which it is loaded towards the usage position.
- The mobility aid according to claim 1 or 2, characterized by the fact that the mobility aid comprises a release device, by way of which a locking of the body contact surface in the usage position can be released.
- The mobility aid according to one of the above claims, characterized by the fact that the body contact surface has two flap elements (8, 12), of which a first flap element (8) is mounted on the first frame element (2) such that it can be swivelled about a first swivel axis (10) and a second flap element (12) is mounted on the second frame element (4) such that it can be swivelled about a second swivel axis (14).
- The mobility aid according to claim 4, characterized by the fact that the body contact surface comprises a foot contact surface (22) and that the first swivel axis (10) and the second swivel axis (14) are arranged at different distances from the foot contact surface (22).
- The mobility aid according to one of the above claims, characterized by the fact that a caster mounting (24) is arranged on both the first frame element (2) and the second frame element (4), wherein a caster is arranged on each mounting.
- The mobility aid according to claim 6, characterized by the fact that the first frame element (2) and the second frame element (4) each comprise a multitude of bores (44), wherein adjacent bores (44) are at a first distance from one another, and that the respective caster mounting (24) features at least two bores (46), which are at a second distance from one another that is not a multiple of the first distance.
- The mobility aid according to claim 7, characterized by the fact that the bores (44) in the frame elements (2, 4) and/or the bores (46) in the caster mountings (24) are threaded bores.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016109757.8A DE102016109757B4 (en) | 2016-05-26 | 2016-05-26 | mobility aid |
PCT/EP2017/062666 WO2017202989A1 (en) | 2016-05-26 | 2017-05-24 | Mobility aid |
Publications (2)
Publication Number | Publication Date |
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EP3463240A1 EP3463240A1 (en) | 2019-04-10 |
EP3463240B1 true EP3463240B1 (en) | 2020-04-29 |
Family
ID=58772574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP17725607.0A Active EP3463240B1 (en) | 2016-05-26 | 2017-05-24 | Mobility aid |
Country Status (3)
Country | Link |
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EP (1) | EP3463240B1 (en) |
DE (1) | DE102016109757B4 (en) |
WO (1) | WO2017202989A1 (en) |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3337261A (en) * | 1965-10-23 | 1967-08-22 | Russell E Nihlean | Folding wheel chair |
CH657985A5 (en) | 1982-10-20 | 1986-10-15 | Rainer Kueschall C O Paratec A | FOLDABLE WHEELCHAIR. |
DE3680668D1 (en) | 1986-05-24 | 1991-09-05 | Heinemann W Gmbh & Co Kg | FOLDABLE WHEELCHAIR. |
US5186480A (en) | 1990-12-05 | 1993-02-16 | Morgan Technology, Inc. | Lightweight transportable wheelchair |
DE29614857U1 (en) | 1996-08-27 | 1996-10-31 | S. Döscher Handels KG Gerätebau, 27572 Bremerhaven | Walking aid for disabled people |
DE29807151U1 (en) | 1998-04-21 | 1998-11-19 | Casa Garden REHA-Produkte für die Pflege GmbH & Co. KG, 32584 Löhne | Walking aid |
JP4441745B2 (en) * | 2000-02-25 | 2010-03-31 | 株式会社松永製作所 | Wheelchair footrest structure |
US6974194B2 (en) * | 2002-06-06 | 2005-12-13 | Sunrise Medical Hhg Inc. | Wheel mount assembly |
US8419047B2 (en) | 2010-07-21 | 2013-04-16 | Karma Medical Products Co., Ltd. | Folding device for wheelchair |
DK2537503T3 (en) | 2011-06-23 | 2015-02-02 | Invacare Internat S Rl | Foldable seat to a rollator or a wheelchair |
EP3120819B9 (en) | 2012-07-31 | 2018-03-21 | Invacare International Sàrl | Foldable wheelchair frame including a self locking device |
-
2016
- 2016-05-26 DE DE102016109757.8A patent/DE102016109757B4/en not_active Expired - Fee Related
-
2017
- 2017-05-24 WO PCT/EP2017/062666 patent/WO2017202989A1/en unknown
- 2017-05-24 EP EP17725607.0A patent/EP3463240B1/en active Active
Non-Patent Citations (1)
Title |
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None * |
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DE102016109757A1 (en) | 2017-11-30 |
DE102016109757B4 (en) | 2019-03-21 |
EP3463240A1 (en) | 2019-04-10 |
WO2017202989A1 (en) | 2017-11-30 |
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