EP3556336B1 - Fauteuil roulant à cadre rigide - Google Patents

Fauteuil roulant à cadre rigide Download PDF

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Publication number
EP3556336B1
EP3556336B1 EP18167665.1A EP18167665A EP3556336B1 EP 3556336 B1 EP3556336 B1 EP 3556336B1 EP 18167665 A EP18167665 A EP 18167665A EP 3556336 B1 EP3556336 B1 EP 3556336B1
Authority
EP
European Patent Office
Prior art keywords
frame
seat
strut
foot support
seat tube
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
Application number
EP18167665.1A
Other languages
German (de)
English (en)
Other versions
EP3556336A1 (fr
Inventor
Gregor Horacek
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
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Filing date
Publication date
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Priority to EP18167665.1A priority Critical patent/EP3556336B1/fr
Priority to US16/373,438 priority patent/US11160702B2/en
Publication of EP3556336A1 publication Critical patent/EP3556336A1/fr
Application granted granted Critical
Publication of EP3556336B1 publication Critical patent/EP3556336B1/fr
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/08Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
    • A61G5/0891Chairs 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10Parts, details or accessories
    • A61G5/1054Large wheels, e.g. higher than the seat portion
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10Parts, details or accessories
    • A61G5/1056Arrangements for adjusting the seat
    • A61G5/1059Arrangements for adjusting the seat adjusting the height of the seat
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10Parts, details or accessories
    • A61G5/1056Arrangements for adjusting the seat
    • A61G5/1075Arrangements for adjusting the seat tilting the whole seat backwards
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10Parts, details or accessories
    • A61G5/12Rests specially adapted therefor, e.g. for the head or the feet
    • A61G5/128Rests specially adapted therefor, e.g. for the head or the feet for feet

Definitions

  • the invention relates to a rigid frame wheelchair, which is designed according to the box frame concept.
  • Rigid-frame wheelchairs are well known from the prior art. They are used where the main focus is on low weight, rigidity and maximum maneuverability.
  • the frame (without a back frame) consists of an L-shaped seat foot support frame - with a seat frame segment and a foot support frame segment - And a, welded on the seat frame segment (individual construction) or adjustable (adjustable) rear axle construction.
  • the advantages of this concept are the low weight and the space-saving accommodation (with the rear wheels / drive wheels removed) for transport, since the L-shaped frame takes up little space and can be easily inserted between other packages in the trunk.
  • the steering forks are attached to the frame so that they can be adjusted so that their axis of rotation can always be aligned with the vertical or vertical regardless of the seat angle set. This is essential to avoid “fluttering" of the steering wheels.
  • the distance between the rear axle and the seat tube is adjusted to adjust the seat angle (or the rear seat height). The closer the rear axle is to the seat tube, the greater the seat angle for a given seat height.
  • the camber adapter is rotatably installed in the rear axle tube or in the rear wheel holder. This enables the rear wheels to be adjusted when changing the seat angle.
  • the toe adjustment is also essential for a smooth running of the rear wheels.
  • the exact seat height (for a given frame size) is set by choosing different height steering forks, as well as by the different height positioning of the steering wheels in the steering forks, the setting of the seat angle (or rear seat height) by adjusting the distance between the rear axle and the seat frame.
  • the object of the present invention is to develop a rigid-frame wheelchair in an adaptable box-frame concept, which has the features of the preamble of claim 1, in such a way that the adjustment of the seat height and seat angle with less use of material and less work increases is accomplished.
  • the respective frame connector has an elongated hole, which is arranged inclined to an adjacent elongated hole of the corresponding seat tube segment, and means for fixing frame connectors and seat tube segment penetrating the elongated holes, for fixing the respective frame connector and associated seat tube segment in different positions.
  • the seat angle and seat height are set solely by turning the seat foot support frame with the coupling units (seat angle), or by moving the coupling units (seat height) and by fixing the seat tube segments to the left and right frame connectors.
  • the foot support tube segments are firmly connected to the coupling units in their adjusted displacement position.
  • provision can be made to block the joints after the angle adjustment of the foot support tube segments.
  • FIG. 1 shows a foldable wheelchair 1 without the seat and back surfaces serving to accommodate a person.
  • the essential parts of the wheelchair 1 include a base frame 2, a seat foot support frame 6, a cross strut 10, a left frame connector 11 and a right frame connector 12, coupling units 13, a back frame 14, a footrest 15, rear wheels 16, front wheels 17, and a left one Rear brake 18 and a right rear brake 19 and a left wheel cover 20 and a right wheel cover 21 on ( FIG. 1 ).
  • the base frame 2 ( FIG. 3 ), consisting of left side strut 3, right side strut 4 and rear axle 5, is by means of coupling units 13, each consisting of ( FIG. 5 ) Coupling piece 24, clamping element 25 and connecting elements 26, 27, 28, 29, 30 and 31 with the seat foot support frame 6 articulated about an axis vertical to the sagittal plane ( FIG. 2 ).
  • the embodiment of the base frame 2 shown here represents only one possible embodiment.
  • the side struts 3 and 4 could, for example, also be designed such that they each consist of a tube bent part, the front tube section of which is perpendicular to the sagittal plane and the coupling unit 13 can be rotated and clamped directly records.
  • Separate steering fork mounts could be attached to suitable pipe sections.
  • the rear axle 5 in the embodiment shown here is displaceable on the struts 3 and 4 to adjust the wheelbase and is fixed by clamping. But it could also be welded directly to the side struts 3 and 4, for example.
  • the rear axle 5 is arranged perpendicular to the sagittal plane.
  • the multifunction parts 23 each have a blind hole 42 on their side facing the sagittal plane ( FIG. 3 ) with a stub 43 ( FIG. 5 ) of the respective coupling piece 24 corresponds.
  • the axis of the blind hole is perpendicular to the sagittal plane.
  • the coupling units 13 are each screwed to the side struts 3 and 4 on the multifunction parts 23 by means of connecting elements 33 and 34.
  • the left and right struts 7 and 8 of the seat foot support frame 6 are received with their foot support tube segments 44 in the coupling piece 24 in a linearly adjustable manner and by means of securing elements 29, 30 and 31 in the coupling piece 24 in a bore 47 (corresponding to the desired seat height) FIG. 6 ).
  • the bores 47 require a gradual seat height variation. A stepless adjustment is also conceivable, for example by clamping.
  • the coupling units 13 can be non-positively fastened to the foot support tube segments 44 of the left and right struts 7 and 8. This enables the coupling units 13 to be precisely aligned with the bores 47 and facilitates the placement and assembly of the connecting elements 29, 30 and 31.
  • a stable connection between the base frame 2 and the seat foot support frame 6 must be established in their rear area by means of frame connectors 11 and 12. This can be achieved in a variety of ways, for example by means of telescopic pipe connections or by struts that can be attached with different distances between and on the base frame 2 and seat-footrest frame 6.
  • the frame connectors 11 and 12 are designed as plates which are firmly screwed to the rear axle 5 by means of connecting elements 36.
  • This frame connector 11 and 12 can thus consist of a different material than the rear axle 5, for example made of carbon.
  • the frame connectors 11 and 12 preferably run approximately concentrically with the rear wheels 16 with their upper contour. As such, they can simultaneously serve as clothing protection against the spoke wheels and accommodate a back frame construction. They each have an elongated hole 48 (here slightly curved) which runs from slightly above the rear axle 5 to the top at an angle.
  • elongated holes 48 correspond to elongated holes 46 in the seat tube segments 45 of the left and right struts 7 and 8 and, depending on the setting of the seat angle, seat height and wheelbase (position of the rear axle 5), form an intersection at a different position with respect to both elongated holes.
  • the left strut 7 with the frame connector 11 and the right strut 8 are made by means of clamping clamps 38 which are guided in the area and along the elongated holes 46 in the seat tube segments 45 of the left and right struts 7 and 8 and the clamping disks 40 and the connecting elements 39 and 41 jammed with the frame connector 12 and thus ultimately give stability to the entire frame structure.
  • One camber adapter 35 (6 ° in the present case) is connected to the rear axle 5 and the frame connector 11 or to the rear axle 5 and the frame connector 12 in a fixed position - without the need to readjust the track when adjusting the seat angle.
  • an additional cross strut 10 consisting of cross strut tube 37 and cross strut couplings 49, is installed. It is received by the left and right struts 7 and 8 in the cross strut couplings 49 and the cross bores 50 of the cross strut couplings 49 are aligned with the respective intersections of the elongated holes 46 and 48. In this position is the cross strut 10 together with the frame connectors 11 and 12 and the left and right struts 7 and 8 also and simultaneously clamped by means of clamping block 38, clamping washers 40 and the connecting elements 39 and 41.
  • the elongated holes 48 can be designed in a wide variety of forms. A preferred goal, however, is that the clamping clamps 38 travel as far as possible both in relation to the elongated holes 46 and the elongated holes 48 when the seat angle and seat height are adjusted, and thus produce the highest possible frictional resistance.
  • the elongated holes have 48 grids ( FIG. 8 ).
  • this enables the exact same setting on the left and right side and, on the other hand, in addition to the frictional connection, also a secure positive connection between frame connectors 11 and 12 and the clamping washers 40.
  • FIG. 7 has the advantage of a stepless angle adjustment.
  • the shaft shoulders 51 of the clamping disks 40 are adapted to the respectively associated type of elongated hole.
  • FIGS 9 to 13 show a rigid frame according to the invention in an adaptable box-frame concept from the left side.
  • the left frame connector 11 is hidden so that the relative position of the elongated holes 46 and 48 and the cross strut 10 (and thus the clamping block 38) can be better represented.
  • FIG. 9 shows the rigid frame with a seat angle of 0 ° to the road, FIG. 10 with a seat angle of approx. 5 °.
  • FIG.11 shows the rigid frame with the setting of the maximum seat height, FIG.12 with a medium seat height and FIG. 13 with the lowest seat height; in all cases with a seat angle of 0 ° to the road.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Automatic Cycles, And Cycles In General (AREA)

Claims (12)

  1. Fauteuil roulant à cadre rigide (1), configuré selon un concept de cadre-boîte, comprenant les caractéristiques suivantes :
    - un cadre de base (2) qui présente un essieu arrière (5) pour recevoir des roues arrière (16) ainsi qu'un montant latéral gauche (3) et un montant latéral droit (4) pour recevoir des roues directrices (17) dans des régions avant des montants latéraux (3, 4),
    - un cadre de repose-pied de siège en forme de L (6) qui présente un montant gauche en forme de L (7) et un montant droit en forme de L (8), les montants respectifs (7, respectivement 8) présentant un segment de tube de siège (45) et un segment de tube de repose-pied (44), le cadre de repose-pied de siège (6) présentant en outre une traverse (9) qui relie les montants (7, 8),
    - deux unités d'accouplement (13) qui relient le cadre de base (2) dans la région avant gauche et la région avant droite au cadre de repose-pied de siège (6) dans la région de ses segments de tube de repose-pied gauche et droit (44) de manière articulée autour d'un axe verticalement par rapport à un plan sagittal en vue d'un ajustement angulaire, et dans lesquelles les segments de tube de repose-pied (44) sont supportés de manière réglable pour un réglage de la hauteur du siège,
    - un connecteur de cadre gauche (11) et un connecteur de cadre droit (12), les connecteurs de cadre (11, 12) reliant fixement les uns aux autres le cadre de base (2) et les segments de tube de siège (45), les segments de tube de siège (45) pouvant être connectés dans des positions différentes aux connecteurs de cadre (11, 12),
    caractérisé en ce que le connecteur de cadre respectif (11, respectivement 12) présente un trou oblong (48) qui est disposé de manière inclinée par rapport à un trou oblong adjacent (46) du segment de tube de siège correspondant (45), et des moyens (38, 39, 40, 41) pour fixer les connecteurs de cadre (11, respectivement 12) et le segment de tube de siège (45) traversent les trous oblongs (46, 48) pour fixer le connecteur de cadre respectif (11, respectivement 12) et le segment de tube de siège associé (45) dans des positions différentes.
  2. Fauteuil roulant selon la revendication 1, caractérisé en ce que les segments de tube de repose-pied (44) peuvent être réglés dans les unités d'accouplement (13) de manière continue ou par incréments.
  3. Fauteuil roulant selon la revendication 1 ou 2, caractérisé en ce que le segment de tube de repose-pied respectif (44) est supporté de manière déplaçable dans une pièce d'accouplement (24) de l'unité d'accouplement (13), réalisée sous forme de douille, et peut être fixé au moyen de moyens (25 à 31), en particulier de moyens de serrage, par rapport à la pièce d'accouplement (24).
  4. Fauteuil roulant selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le montant latéral respectif (3, 4) présente un tube de montant (22) et une pièce multifonctionnelle (23) connectée fixement à celui-ci, la pièce multifonctionnelle respective (23) servant à recevoir des sièges de palier pour une fourche de direction (52) d'une roue avant (17) et à supporter l'unité d'accouplement (13), de préférence également à recevoir un pare-chocs (32).
  5. Fauteuil roulant selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les deux connecteurs de cadre (11, 12) relient fixement les uns aux autres le cadre de base (2) et les segments de tube de siège (45) dans leur région arrière respective.
  6. Fauteuil roulant selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les segments de tube de siège (45) reçoivent de manière déplaçable dans leur région arrière une traverse supplémentaire (10), cette traverse (10) étant connectée dans la région de ses extrémités opposées aux connecteurs de cadre (11, 12).
  7. Fauteuil roulant selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le connecteur de cadre respectif (11, 12) est réalisé sous forme de plaque qui est disposée notamment parallèlement au plan sagittal.
  8. Fauteuil roulant selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le connecteur de cadre respectif (11, respectivement 12) est connecté fixement au moyen d'au moins un élément de liaison (36) à l'essieu arrière (5), en particulier par vissage.
  9. Fauteuil roulant selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le trou oblong (48) du connecteur de cadre (11, respectivement 12) s'étend depuis le haut, en particulier légèrement au-dessus de l'essieu arrière (5) obliquement vers le haut et vers l'avant et/ou le trou oblong (46) du segment de tube de siège (45) s'étend dans la direction axiale du segment de tube de siège (45).
  10. Fauteuil roulant selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le trou oblong (48) du connecteur de cadre (11, respectivement 12) est disposé de manière légèrement incurvée et le trou oblong (46) du segment de tube de siège (45) est disposé de manière à s'étendre en ligne droite dans la direction axiale du segment de tube de siège (45).
  11. Fauteuil roulant selon l'une quelconque des revendications 1 à 10, caractérisé en ce que les connecteurs de cadre (11, respectivement 12) et les segments de tube de siège (45) peuvent être connectés les uns aux autres en continu ou à des intervalles de réglage définis.
  12. Fauteuil roulant selon l'une quelconque des revendications 1 à 11, caractérisé en ce que l'essieu arrière (5) peut être déplacé pour régler l'empattement du fauteuil roulant (1) sur les montants latéraux (3, 4) et peut être fixé au moyen de moyens par rapport aux montants latéraux (3, 4).
EP18167665.1A 2018-04-17 2018-04-17 Fauteuil roulant à cadre rigide Active EP3556336B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18167665.1A EP3556336B1 (fr) 2018-04-17 2018-04-17 Fauteuil roulant à cadre rigide
US16/373,438 US11160702B2 (en) 2018-04-17 2019-04-02 Rigid frame wheelchair

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18167665.1A EP3556336B1 (fr) 2018-04-17 2018-04-17 Fauteuil roulant à cadre rigide

Publications (2)

Publication Number Publication Date
EP3556336A1 EP3556336A1 (fr) 2019-10-23
EP3556336B1 true EP3556336B1 (fr) 2020-08-05

Family

ID=62017189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18167665.1A Active EP3556336B1 (fr) 2018-04-17 2018-04-17 Fauteuil roulant à cadre rigide

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US (1) US11160702B2 (fr)
EP (1) EP3556336B1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10751235B2 (en) * 2017-04-14 2020-08-25 Chad Robert Ernst Adjustable camber wheelchair devices, systems and methods
USD943466S1 (en) * 2018-06-29 2022-02-15 TOPRO Industri AS Part of a rollator frame
CA188334S (en) * 2018-09-14 2020-06-17 Invacare Int Gmbh Wheelchair
US12005735B2 (en) * 2020-03-16 2024-06-11 United States Government As Represented By The Department Of Veterans Affairs Wheelchair for specialized sports applications
EP4088705A1 (fr) 2021-05-12 2022-11-16 Meyra GmbH Cadre pliant pour un fauteuil roulant
DE102021123806B4 (de) 2021-05-12 2024-08-22 Meyra Gmbh Faltrahmen für einen Rollstuhl

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5020816A (en) * 1987-10-19 1991-06-04 Mulholland Designs, Inc. Adjustable frame wheelchair
DE19525719B4 (de) * 1994-07-14 2004-08-26 Everest & Jennings International Ltd. Rollstuhl und Rollstuhlrahmen mit Aufhängung
DE29901471U1 (de) * 1999-01-29 1999-07-22 Sopur Medizintechnik GmbH, 69254 Malsch Handbetätigbarer Rollstuhl
US6241275B1 (en) * 1999-06-14 2001-06-05 Sunrise Medical Hhg Inc. Foldable wheelchair and link configuration for foldable wheelchair
US6264225B1 (en) * 1999-06-14 2001-07-24 Sunrise Medical Hhg Inc. Adjustable side frame and wheelchair with adjustable side frame
DE10248624A1 (de) * 2002-10-18 2004-05-06 Sunrise Medical Gmbh Rollstuhl mit Kleiterschutz- Seitenteil
WO2005067857A1 (fr) * 2004-01-14 2005-07-28 Invacare Corporation Fauteuil roulant reglable
EP1814502A1 (fr) * 2004-10-29 2007-08-08 R82 A/S Fauteuil roulant confortable
US7891696B2 (en) * 2008-06-17 2011-02-22 Hanson Wayne H Multifunctional foldable mobility base

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Publication number Publication date
US11160702B2 (en) 2021-11-02
US20190314228A1 (en) 2019-10-17
EP3556336A1 (fr) 2019-10-23

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