EP0754441B1 - Klapprollstuhl - Google Patents
Klapprollstuhl Download PDFInfo
- Publication number
- EP0754441B1 EP0754441B1 EP96109697A EP96109697A EP0754441B1 EP 0754441 B1 EP0754441 B1 EP 0754441B1 EP 96109697 A EP96109697 A EP 96109697A EP 96109697 A EP96109697 A EP 96109697A EP 0754441 B1 EP0754441 B1 EP 0754441B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- folding wheelchair
- locking
- members
- wheelchair
- main cross
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
- A61G5/0808—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction
- A61G5/0816—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding side to side, e.g. reducing or expanding the overall width of the wheelchair
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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
- A61G5/1054—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
- A61G5/1091—Cushions, seats or abduction devices
-
- 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
- A61G5/1062—Arrangements for adjusting the seat adjusting the width of the seat
Definitions
- the invention relates to a folding wheelchair or a collapsible wheelchair the preamble of claim 1.
- a folding wheelchair is out EP-A-0 312 969 is known.
- the foldability of the wheelchair is due to the fact that the cross beams, which determine the distance between the side members in the operating state, relative to the Let the side members fold into a position in which this distance is as small as possible. So that the folding wheelchairs can also be easily handled by the disabled, the cross beams, which are brought into a different position during the folding process, in a simpler way Let move relative to each other and relative to the side longitudinal beams. This requires that the necessary game is available.
- a first disadvantage of this prior art folding wheelchair is either its Stability in use is insufficient or it cannot be folded easily; the hinge joint, which connects the two legs of the main cross member, has either play on, which gives you enough easy foldability but no stability reached, or it is free of play, which then gives sufficient stability, not but achieved a smooth foldability.
- the folding wheelchair is either soft when there is play or in use hard "if there is no game, but in this respect you don’t adhere to the Allows the user's wishes and needs to be adjusted.
- One possibility is one such soft / hard attitude exists; but it must already during the assembly of the Folding wheelchair take place, their change accordingly requires a partial disassembly of the folding wheelchair and therefore cannot easily be used by the user or another layperson be accomplished.
- a third disadvantage of the previously known folding wheelchair relates to the locking device with which the two legs are locked in the operating position. It consists of one Rest area, which is formed by holes in the legs, which in the operating position align, as well as from a locking body in the form of a locking bolt, which is in the locking position is recorded in the aligned holes.
- the relatively weak trained locking bolt is subject to considerable transverse forces, through which it is plastic is deformed.
- the object of the invention is thus seen in creating a folding wheelchair of the type mentioned which does not have the disadvantages mentioned and which is extremely stable in the operating position, which is easy to operate when folded and unfolded and which is easy to operate and hard / soft-adjustability offers.
- the new folding wheelchair differs from the known one by several features Folding wheelchair according to the prior art, which features in combination the inventive Get the task done.
- these characteristics are parallel to the wheel axis Deliverability of at least one of the ones at right angles to the main cross member Leg of the main cross member, second, the only along one contact surface touching leg of the main cross member and third, the elongated design of the cross for the movement of the locking body directed locking surface on which the locking body any one can run up.
- the first feature of the new folding wheelchair according to the invention relates, as mentioned, to the Deliverability of at least one of the axles parallel to the main cross member parallel to the wheel axis extending leg of the main cross member in the direction of the longitudinal central surface of the Folding wheelchair; through such a delivery, the game of the hinge joints between the side members and the main cross member and between the legs of the main cross member To get picked up.
- This increases both the stability of the folding wheelchair in its operating position as well as its easy foldability.
- the improvement of Stability by avoiding the game is obvious and requires no further explanation; the ease of folding comes from the fact that the game of Hinge axes can be chosen relatively generously, precisely because of the possibility there is to cancel this game in the operating position by the delivery of the legs.
- the folding wheelchair by choosing the size of the Infeed between a minimum and a maximum value arbitrary from soft to can be set to 'hard', the rigidity of the closed frame being 'soft' Folding wheelchair is less than the play-free and therefore hard 'folding wheelchair.
- the infeed of the legs of the main crossbeam also enables to compensate for wear-related play.
- the second feature according to the invention relates to the design and arrangement of the legs of the main cross member.
- the legs of the main cross member of the folding wheelchair according to the invention overlap only in a central area where they locked themselves in the operating position or in the locked position Touch the state along only one contact plane and are at right angles to the main cross member arranged.
- the mutual pressure the contact areas of the overlapping areas of the two legs are canceled, so that due to the absence of frictional forces, the two legs move without effort can be easily pivoted against each other. It is easy to see that this arrangement the ease of folding; less obvious is that stability at the same time is increased in the operating position, which is to be explained below.
- the legs are designed so that their mutual Touch should take place in two contact levels; such a double touch can but, as explained above, does not come about, that is the desired stability is not reached.
- the third feature according to the invention relates to the design of the locking device itself.
- the locking device is designed in such a way that all relevant disadvantages, which the known folding wheelchair has can be avoided.
- the rest area is elongated and directed transversely to the movement of the locking body, and the locking body can run onto the rest area at any point.
- Any existing Game that is intended or created by wear and that is the relative location of the two legs in their longitudinal direction, i.e. transverse to the direction of travel of the folding wheelchair, influenced, so does not make it difficult to actuate the locking device.
- the locking body designed as a locking lug is pivotable formed and pivotable to the locking surface or away from it; such a swivel motion is much easier to do than the linear push or pull movement, which is necessary for actuating the locking bolt according to the prior art.
- a Spring device tensions the locking lug, or a lever device, on one arm the locking lug is arranged towards the locking position.
- the folding wheelchair according to the invention both in terms of its stability in use and its comfort Foldability advantageously differs from the previously known folding wheelchair.
- the advantages, which are aimed at by the delivery made transversely to the direction of travel achieve if a feed device is provided for one of the two legs. Considering the very small distances over which such delivery devices have their effect unfold, as well as to generate a symmetrical infeed, it is advantageous to provide feeders for both legs.
- the delivery devices can be designed such that they have a delivery body; which acts transversely to the direction of travel or in the longitudinal direction of the leg by it is displaceable relative to the side support to which the leg is articulated.
- the deliverability is infinitely variable, in that the delivery body is moved by means of an delivery element Move over a wedge or helical surface leaves.
- the delivery body is in a breakthrough plate-shaped extension of the side carrier arranged in the direction of travel, its surface facing the leg abutting the latter.
- the breakthrough is on Outside or the side facing away from the leg of a rigidly attached to the neck Cover plate closed.
- the feed element in the form of a screw or an eccentric disc is rotatably accommodated in this cover plate.
- the latching area is on a surface running in the infeed direction the leg is arranged, the actual locking surface being the one opposite the locking nose Section of the rest area acts on which the locking nose runs. Since the locking lug always finds a suitable resting area regardless of location, on which it can run, there is no need for an adjustment for the locking device to be provided to the extent of the delivery of the legs or the selected Local adjustment of the leg length, which will be discussed further below adapt.
- a mostly flat outer surface of a is usually used as the rest area the leg is used, while the locking lug swivels on the other of the legs is articulated.
- the pivotable locking lug or the lever device on which the locking lug is arranged is articulated via a locking axis on the leg that is not with the rest area is provided.
- the locking lug must be in its active position when the folding wheelchair is in the operating position the locking surface can be fixed.
- the easiest way to do this is that the lever device, which contains the locking lug, is biased to the operative position, which is advantageous Way is possible with a spring device.
- the lever device can in one Further development of the invention can be designed as a one-hand operation and then provides further advantageous simplification of the operation of the folding mechanism.
- the length of the main crossmember is adjustable, which allows you to can change the width of the folding wheelchair, with the purpose of meeting the needs of its users Adapt users. If the two legs also to save weight of the main cross member do not extend across the entire width of the folding wheelchair, so they overlap with those arranged in the area of the longitudinal median plane of the folding wheelchair Ends, this area of overlap being greatest when a minimum Width is desired, and decreases when larger widths are set.
- the adjustment the width is not infinitely variable because of the complex telescopically extendable device would be necessary on at least one of the cross beams, and one with other means can cause an adjustment in sufficiently small steps or steps, as follows is described.
- the two legs which are connected by a hinge joint are connected, not only has at least one for receiving the hinge axis one hole but a large number of axially parallel holes. These holes are at a distance from each other to overlap with the other leg intended area of the thigh distributed.
- one of the holes with the Bore the other leg in alignment and a bolt in the Hinge axis introduced. It is obvious that you can limit the number of settings increases, although the second leg has a large number of holes that are not in the the same distance as the holes in the first leg are to have.
- a device is advantageously used to fine-tune the play of the hinge axis with an adjusting nut.
- Safety device is provided to fix the adjusting nut in its target position.
- an adjusting nut which in a known manner with one to her axially parallel grub screw, which engages in one of the concavities of the adjusting nut becomes.
- the legs or the corresponding scissor-like components move in a vertical plane during the folding process, that is to say they carry out pivoting movements about horizontal pivoting axes.
- Such a construction of the legs or the corresponding scissor-like components is also possible in the folding wheelchair according to the invention; but it has proven to be much cheaper to arrange the legs one above the other and at right angles to the main cross member, so that they move in a horizontal plane when folding, which is synonymous with the fact that they rotate about vertical pivot axes.
- the advantage of the vertically arranged axes is to be seen essentially in the fact that they are less exposed to lateral forces and consequently to bending, which prevents jamming or obstruction of the pivoting movements and thus the folding process.
- the folding wheelchair is as stable as possible, it is advantageous if its main cross member, which contributes a relatively large amount to the weight, is arranged as deep as possible, that is, is arranged under the seat, as is also the case with the folding wheelchair according to DE-33 33 570-C2 ; however, the main cross member is arranged there under the rear area of the seat surface, so that the center of gravity is limited at the edge of the base, which is defined by the lines connecting the drive wheels and the running wheels.
- the stability is further increased by moving the main cross member forward, so that it is - seen in the direction of travel - approximately below the center of the seat and thus at least approximately below the center of gravity. This also improves the steerability of the new folding wheelchair.
- the folding wheelchair shown in FIG. 1 hereinafter referred to briefly as wheelchair 10 , has a left side support 12 and a right side support 13 .
- the two side beams 12, 13 have approximately the shape of an inverse L and each have a horizontal arm 12a, 13a and an arm 12b, 13b pointing obliquely from the bottom and down.
- the horizontal arm 12a of the left side carrier 12 has in its rear region a vertical plate-like extension 14 , which is also referred to as a wheel carrier 14 , and to which a drive wheel (not shown) can be fastened via an adapter plate 16 ;
- a drive wheel 19 is attached to an attachment (not visible) of the right side support 13 via a further adapter plate 16 .
- Both the wheel carrier 14 and the adapter plates 16 have a large number of bores. This provides numerous possibilities for attaching the adapter plates 16 to the wheel carriers 14 on the one hand and, on the other hand, the drive wheels 19 to the adapter plates 16 , so that the wheelchair 10 with its geometry can be adapted to the needs of different users and, if appropriate, to changing needs of a particular user ,
- the drive wheels 19 are fastened in a conventional manner via thru axles with spring-operated fixing elements thru axles and can therefore be easily dismantled for transporting the wheelchair 10, for example and a car, whereupon the remaining, now significantly less bulky part of the wheelchair 10 is lifted much more easily and can be supplied.
- a foldable sheet blank Arranged on the horizontal arms 12a, 13a of the side supports 12, 13 is a foldable sheet blank which forms a seat surface 22 and on which a seat cushion 24 is fastened with the aid of a Velcro strip.
- horizontal thin plates 26, 27 are arranged on both sides, in a vertical arrangement, as clothing protection.
- struts 28, 29 extend approximately vertically upwards, between which another fabric blank, which forms a backrest 30 and how the seat surface 22 can be padded with a cushion (not shown), is arranged.
- the angle which the vertical struts 28, 29 enclose with the horizontal arms 12a, 13a of the side supports 12, 13 is adjustable, which in turn serves to adapt the geometry of the wheelchair 10 to the respective needs.
- the secondary cross member not shown, is located at the level of the lower ends of the inclined arms 12b, 13b of the side members 12, 13 and is combined in the usual way with a footrest which is designed to be foldable.
- the main cross member 34 is arranged centrally under the seat surface 22 , ie at least approximately below the center of gravity of the wheelchair 10 loaded with a user ; This arrangement achieves a high level of stability and easy steerability of the wheelchair 10.
- the main cross member 34 consists essentially of two legs 38, 39 articulated almost at right angles in the unfolded state .
- the right leg 38 has a bearing body 40 for receiving a vertical pivot axis, not shown, via which it is on the right wheel carrier articulated and thereby indirectly attached to the right side member 13 ;
- the left leg 39 has a bearing body 41 for receiving a pivot axis, also not shown, via which it is articulated on the left wheel carrier 14 and is thus indirectly attached to the left side carrier 12 .
- the cross sections of the elongated parts of the legs 38, 39 which extend under the seat surface 22 are essentially rectangular, various recesses being arranged to reduce the weight and for design reasons. With their ends opposite the bearing bodies 40, 41 , the legs 38, 39 overlap in the region of the longitudinal central surface of the wheelchair.
- the left leg 39 lies with its lower surface 39u on the upper surface 38o of the right leg 38 , so that the surfaces 380, 39u form the contacting, flat and horizontal contact surfaces of the legs 38, 39 .
- the overlapping ends of the legs 38, 39 of the main cross member 34 are articulated to one another in the manner of a hinge joint and about a vertical hinge axis 44, which is only shown in FIG. 10 , from their parallel position, which they assume in the operating state of the wheelchair 10 , pivotable relative to each other in a rest position, not shown, which they occupy when the wheelchair 10 is folded.
- the legs 38, 39 therefore form a right angle with the side supports 12, 13 in the operating state, while in the folded state they are directed almost parallel to the side supports 12, 13 .
- the wheelchair 10 is adjustable in width to adapt to changing needs.
- the secondary crossmember and the main crossmember 34 are designed such that their length can be optionally changed, whereby conventional and therefore not further described design measures are provided for the adjustment of the secondary crossmember.
- the adjustability of the main cross member 34 is achieved in that the overlap area of the legs 38, 39 is lengthened or shortened.
- the two legs 38, 39 each have several, in the present case five, parallel bores 46a-46e and 47a-47e .
- one of the bores 46a - 46e of the leg 38 is aligned with the suitable one of the bores 47a - 47e of the leg 39 and the hinge axis 44 is arranged in the selected coaxial bores, in the present case 46c, 47a .
- the hinge axis 44 is fastened and its play is adjusted by means of a screw device, an adjusting nut 48 shown in FIG. 10 being used for fine adjustment of the play.
- the adjusting nut 48 is designed such that it is secured by means of a locking screw 50 which, depending on the position of the adjusting nut 48 , can be screwed into one of four bores 52a-52d, in the present case 52b or 52c .
- the locking screw 50 prevents the adjusting nut 48 from being adjusted or loosened, which would otherwise be feared due to the relative rotation of the legs 38, 39 when the wheelchair 10 is folded.
- a locking device in which, in the locked state, a locking surface of a locking body, which is articulated on one of the legs, bears against a locking surface on the other of the legs under the action of a fixing element exerting a force on it.
- the locking body is designed in the form of a locking nose 56 on a first arm of a lever device 54 ; the second arm of the lever device 54 is provided with a handle 70 ; the lever device 54 and thus also the locking body or the locking nose 56 are articulated on a shoulder 58 of the right leg 38 by means of a horizontal locking axis 60 .
- the locking surface 62 on which the locking surface 56v comes to rest in the locked state, is formed by a section of an elongated locking region 64 which extends along the rear vertical surface 39h of the left upper leg 39 .
- the latching surface 62 and the latching area 64 are indicated in FIG. 9 with dash-dotted lines, but in reality they are not recognizable by the leg 39 , unless they are subject to slight wear and tear due to frequent actuation of the locking device.
- the lever device 54 is pretensioned in the assembled state in such a way that the surface 38o is pressed against the surface 39u .
- the spring device not shown, is received, for example, in a recess in the right leg 38 .
- the ergonomically favorable handle 70 with which the locking device can be actuated in a simple manner, is clearly recognizable in FIG. 9 .
- This handle 70 can also advantageously - not shown for clarity - be designed as a so-called one-hand operation of the folding device.
- the purpose of the elongated design of the latching area 64 is to provide the locking lug 56 with a latching surface 62 which is not delimited on the side at any point at which it can be located. This greatly facilitates the mutual locking of the legs 38, 39 when the wheelchair 10 is ready for operation, as has already been explained in detail above.
- the arrangement just described is provided because the locking tab 56, depending on the set width of the wheelchair 10 and depending on the delivery of the legs 38, 39, which will be dealt with later, assume a position which is variable over a certain distance along the width of the wheelchair 10 can.
- the lower front edge of the left leg 39 has a bevel 39s which has at least approximately the same inclination as the surface 56s of the locking nose 56 that slopes downward and downward.
- Figs 2 - 5 In the following the structural design and the mode of operation are shown in Figs 2 - 5 described infeed illustrated for the right side of the wheelchair 10 in more detail.
- the opening 72 is closed by means of a cover plate 78 accommodated in the step 72a , which is rigidly connected to the wheel carrier 14 by means of screws (not shown) for which four bores 80 are provided.
- Within the vertical cover plate 78 Within the vertical cover plate 78 is located in the opening 72 a in the next succeeding stage 72b disposed plate 82 with an integrally formed at their Zustell Congress 84.
- the plate 82 and the Zustellêt redesign 84 is acted upon by an adjusting screw 86 which is screwed in the cover plate 78, , As a result, the feed body 84 presses the bearing body 40 of the right leg 38 lying against it to the left or to the leg 39 or to the center of the wheelchair 10.
- a corresponding feed device is also provided in the left wheel carrier 14 , with the difference that there is that of the set screw 86 corresponding set screw and the feed body corresponding to the feed body 84 are arranged in the upper area of the opening, while the set screw 86 and the feed body 84 in the illustrated right feed device are in the lower area of the opening 72 .
- the reason for this asymmetrical design of the rest of the symmetrical feed devices is that the set screw 86 of the right feed device should be aligned with the longitudinal axis of the right leg 38 of the main cross member 34 so that the feed takes place in an efficient manner. Since the left leg 39 of the main cross member 34 lies above the right leg 38 , the left infeed device is consequently also located higher up than the right infeed device, so that in each case the infeed screw is aligned with the longitudinal axis of its leg. Nevertheless, identical openings, cover plates and plates with molded-on delivery body can be used for the left and the right delivery device, the upper edges of the cover plate and the plate in the left delivery device being arranged at the bottom in the right delivery body.
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- Veterinary Medicine (AREA)
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- Seal Device For Vehicle (AREA)
Description
- Fig. 1
- einen Klapprollstuhl nach der Erfindung, von welchem einzelne Teile weggebrochen sind, in vereinfachter - teilweise schematischer - Darstellung, in einem Schaubild;
- Fig. 2
- einen Teil eines in Längs- bzw. Fahrtrichtung angeordneten rechten Seitenträgers des in Fig. 1 dargestellten Klapprollstuhls, in einer seitlichen Ansicht, von aussen gesehen;
- Fig. 3
- den in Fig. 2 dargestellten Seitenträger, in einem vertikalen Längsschnitt;
- Fig. 4
- den in den Fig. 1 - 2 dargestellten Seitenträger, in einem Schnitt längs der Linie 4 - 4 der Fig. 2;
- Fig. 5
- die im Seitenträger der Fig. 2 - 4 angeordneten Teile der Zustellvorrichtung, nämlich den einen Ausschnitt aus dem Seitenträger, den Zustellkörper und die Deckplatte sowie den rechten Schenkel des Hauptquerträgers, vereinfacht, in explodierter Darstellung, in einem Schaubild;
- Fig. 6
- den Hauptquerträger des in Fig. 1 dargestellten Klapprollstuhls, in einer seitlichen Ansicht, von vorne;
- Fig. 7
- den rechten Schenkel des in Fig. 6 dargestellten Hauptquerträgers, in einer Ansicht von oben;
- Fig. 8
- den linken Schenkel des in Fig. 6 dargestellten Hauptquerträgers, in einer Ansicht von unten;
- Fig. 9
- die Arretiervorrichtung zur gegenseitigen Arretierung der in den Fig. 7 - 8 dargestellten Schenkel des in Fig. 6 dargestellten Hauptquerträgers, in einem Schaubild, ohne Einhandbetätigungs-Vorrichtung;
- Fig. 9A
- einen Schnitt durch die Arretiervorrichtung; und
- Fig. 10
- eine Einzelheit der gegenseitigen Befestigung der beiden Schenkel des Hauptquerträgers.
Claims (14)
- Klapprollstuhl (10) mit zwei Seitenträgern (12, 13), an welchen je ein Antriebsrad (19) und je ein Laufrad (20, 21) befestigt sind, und welche durch einen horizontalen Hauptquerträger (34) und einen Nebenquerträger starr verbunden sind, wobei der Hauptquerträger (34) durch zwei an den Seitenträgem (12, 13) angelenkte Schenkel (38, 39) gebildet ist, die über ein Scharniergelenk verbunden und mittels einer, eine Rastfläche (62) und einen Arretierkörper (56) aufweisenden, Arretiervorrichtung lösbar gegenseitig arretiert sind, wobeisich die Schenkel (38, 39) mit je einer Kontakfläche (380, 39u) berührenund mindestens einer der Schenkel (38) mittels einer Zustellvorrichtung (72, 82, 84, 86) parallel zur Drehachse der Antriebsräder (19) zustellbar ist, dadurch gekennzeichnet,dass der Arretierkörper durch eine Arretiernase (56) gebildet ist und schwenkbar am einen der Schenkel (38) angelenkt ist, unddass die Rastfläche (62) durch einen Teil eines länglichen Rastbereiches (64) gebildet ist, der im Wesentlichen parallel zur Drehachse der Antriebsräder (19) verläuft, der Arretiernase (58) gegenüberliegt und am anderen der Schenkel (39) angeordnet ist.
- Klapprollstuhl (10) nach Patentanspruch 1,
dadurch gekennzeichnet, dass die beiden Schenkel (38, 39) im wesentlichen rechtwinklig zum Hauptquerträger (34) angeordnet sind. - Klapprollstuhl (10) nach Patentanspruch 1,
dadurch gekennzeichnet, dass der andere der Schenkel (39, 38) ebenfalls eine Zustellvorrichtung besitzt. - Klapprollstuhl (10) nach Patentanspruch 1,
dadurch gekennzeichnet, dass die Zustellvorrichtung einen auf den Schenkel (38) wirkenden Zustellkörper (84) aufweist, welcher relativ zum Seitenträger (13) verschiebbar ist. - Klapprollstuhl (10) nach Patentanspruch 4,
dadurch gekennzeichnet, dass der Zustellkörper (84) mittels eines keil- oder schraubenlinienförmigen Zustellelementes (86) stufenlos verschiebbar ist. - Klapprollstuhl (10) nach Patentanspruch 4,
dadurch gekennzeichnet, dass der Zustellkörper (84) in einem Durchbruch (72) eines Ansatzes (14) des Seitenträgers (12, 13) aufgenommen ist, welcher Durchbruch (72) von einer am Ansatz (14) starr befestigten Deckplatte (78) überdeckt ist, in der das Zustellelement (86) Deckplatte (78) überdeckt aufgenommen ist. - Klapprollstuhl (10) nach Patentanspruch 1,
dadurch gekennzeichnet, dass der Rastbereich (64) eine parallel zur Drehachse der Antriebsräder (18, 19) gerichtete, vorzugsweise ebene Aussenfläche (39v) eines der Schenkel (39) ist. - Klapprollstuhl (10) nach Patentanspruch 1,
dadurch gekennzeichnet, dass die Arretiernase (56) an einer in einem der Schenkel (38) angeordneten und in Längsrichtung des Schenkels (38) verlaufenden Arretierachse (60) angelenkt ist. - Klapprollstuhl (10) nach Patentanspruch 1,
dadurch gekennzeichnet, dass die Arretiemase (56) auf die Rastfläche (62) vorgespannt ist. - Klapprollstuhl (10) nach Patentanspruch 1,
dadurch gekennzeichnet, dass mindestens einer der Schenkel (38) mehrere in gegenseitigem Abstand über seine Länge verteilte Bohrungen (46a - 46e) besitzt, von welchen wahlweise eine Bohrung (46c) fluchtend auf eine Bohrung (47a) des anderen Schenkels (39) ausrichtbar ist, um die Länge des Hauptquerträgers (34) einzustellen. - Klapprollstuhl (10) nach Patentanspruch 1,
dadurch gekennzeichnet, dass zur Feineinstellung des Spiels der Scharnierachse (44) im die Schenkel (38, 39) verbindenden Scharniergelenk eine Stellmutter (48) angeordnet ist welche mittels einer Sicherungsvorrichtung (50) in ihrer Solllage sicherbar ist. - Klapprollstuhl (10) nach Patentanspruch 1,
dadurch gekennzeichnet, dass die Schwenkachsen, um welche die Schenkel (38, 39) des Hauptquerträgers (34) schwenkbar sind, vertikal gerichtet sind. - Klapprollstuhl (19) nach Patentanspruch 1,
dadurch gekennzeichnet, dass der Hauptquerträger (34) mittlere Bereiche von horizontalen Armen (12a, 13a) der Längsträger (12, 13) verbindet, damit der Hauptquerträger (34) unterhalb der Schwerachse des beladenen Klapprollstuhls (10) angeordnet ist. - Klapprollstuhl (10) nach Patentanspruch 1,
dadurch gekennzeichnet, dass die Arretiervorrichtung so ausgebildet ist, dass sie einhandbetätigbar ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH2155/95 | 1995-07-21 | ||
CH02155/95A CH690750A5 (de) | 1995-07-21 | 1995-07-21 | Klapprollstuhl. |
CH215595 | 1995-07-21 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0754441A2 EP0754441A2 (de) | 1997-01-22 |
EP0754441A3 EP0754441A3 (de) | 1997-09-24 |
EP0754441B1 true EP0754441B1 (de) | 2002-05-02 |
Family
ID=4227170
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96109697A Expired - Lifetime EP0754441B1 (de) | 1995-07-21 | 1996-06-17 | Klapprollstuhl |
Country Status (9)
Country | Link |
---|---|
US (1) | US5758897A (de) |
EP (1) | EP0754441B1 (de) |
JP (1) | JPH0928735A (de) |
AT (1) | ATE216868T1 (de) |
AU (1) | AU711778B2 (de) |
CA (1) | CA2181737A1 (de) |
CH (1) | CH690750A5 (de) |
DE (1) | DE59609141D1 (de) |
NZ (1) | NZ299003A (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6572133B1 (en) | 2001-01-18 | 2003-06-03 | Sunrise Medical Hhg, Inc. | Folding mechanism for a wheelchair |
US7052030B2 (en) * | 2003-07-02 | 2006-05-30 | Medical Depot | Wheeled walker |
US7854481B2 (en) * | 2004-06-15 | 2010-12-21 | Star Cushion Products, Inc. | Methods and apparatus for assembling a wheel chair |
WO2006047343A2 (en) * | 2004-10-22 | 2006-05-04 | Sunrise Medical Hhg Inc. | Foldable wheelchair and axle plate therefor |
US7845665B2 (en) * | 2005-03-30 | 2010-12-07 | Jaimie Borisoff | Wheelchair |
EP2997945A1 (de) | 2014-09-19 | 2016-03-23 | Invacare International Sàrl | Zusammenklappbarer Rollstuhl mit Versteiferkonstruktion |
US9655794B2 (en) * | 2015-10-07 | 2017-05-23 | Edward T. Bednarz, III | Adjustable wheelchair |
US11969384B2 (en) * | 2019-03-21 | 2024-04-30 | Jennifer K. Montoya | Wheelchair with actuator controlled tilting |
CN112972148A (zh) * | 2021-02-02 | 2021-06-18 | 王新爱 | 一种中医康复保健护理床椅 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3758150A (en) * | 1972-06-28 | 1973-09-11 | P Williams | Collapsible wheel chair |
FR2326912A1 (fr) * | 1975-10-08 | 1977-05-06 | Semnoz | Fauteuil roulant pliable |
US4101143A (en) * | 1977-01-03 | 1978-07-18 | American Safety Equipment Corporation | Wheelchairs |
US4375295A (en) * | 1979-04-20 | 1983-03-01 | Frank Volin | Detachable wheelchair backrest |
CH657985A5 (de) * | 1982-10-20 | 1986-10-15 | Rainer Kueschall C O Paratec A | Faltbarer rollstuhl. |
DE3879864T2 (de) * | 1987-10-19 | 1993-08-26 | Mulholland Designs Inc | Verstellbares rollstuhlgestell. |
-
1995
- 1995-07-21 CH CH02155/95A patent/CH690750A5/de not_active IP Right Cessation
-
1996
- 1996-06-17 EP EP96109697A patent/EP0754441B1/de not_active Expired - Lifetime
- 1996-06-17 AT AT96109697T patent/ATE216868T1/de not_active IP Right Cessation
- 1996-06-17 DE DE59609141T patent/DE59609141D1/de not_active Expired - Lifetime
- 1996-07-16 NZ NZ299003A patent/NZ299003A/en unknown
- 1996-07-19 CA CA002181737A patent/CA2181737A1/en not_active Abandoned
- 1996-07-19 AU AU60589/96A patent/AU711778B2/en not_active Ceased
- 1996-07-22 US US08/685,912 patent/US5758897A/en not_active Expired - Lifetime
- 1996-07-22 JP JP8192008A patent/JPH0928735A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
CH690750A5 (de) | 2001-01-15 |
CA2181737A1 (en) | 1997-01-22 |
US5758897A (en) | 1998-06-02 |
AU711778B2 (en) | 1999-10-21 |
ATE216868T1 (de) | 2002-05-15 |
EP0754441A2 (de) | 1997-01-22 |
JPH0928735A (ja) | 1997-02-04 |
AU6058996A (en) | 1997-01-30 |
NZ299003A (en) | 1997-05-26 |
DE59609141D1 (de) | 2002-06-06 |
EP0754441A3 (de) | 1997-09-24 |
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