EP0201424B1 - Stuhl für Behinderte mit Vorrichtung zum schnellen Arretieren der Fussstützen - Google Patents

Stuhl für Behinderte mit Vorrichtung zum schnellen Arretieren der Fussstützen Download PDF

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Publication number
EP0201424B1
EP0201424B1 EP86400969A EP86400969A EP0201424B1 EP 0201424 B1 EP0201424 B1 EP 0201424B1 EP 86400969 A EP86400969 A EP 86400969A EP 86400969 A EP86400969 A EP 86400969A EP 0201424 B1 EP0201424 B1 EP 0201424B1
Authority
EP
European Patent Office
Prior art keywords
footrest
cam
upright
chassis
axis
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
Application number
EP86400969A
Other languages
English (en)
French (fr)
Other versions
EP0201424A1 (de
Inventor
Jean-Jacques Emile Lucien Chabrol
Jean-Pierre François Michel Lambert
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.)
COMPOSITES AQUITAINE SA
Poirier Ets SA
Original Assignee
COMPOSITES AQUITAINE SA
Poirier Ets SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by COMPOSITES AQUITAINE SA, Poirier Ets SA filed Critical COMPOSITES AQUITAINE SA
Priority to AT86400969T priority Critical patent/ATE57611T1/de
Publication of EP0201424A1 publication Critical patent/EP0201424A1/de
Application granted granted Critical
Publication of EP0201424B1 publication Critical patent/EP0201424B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A61G5/10—Parts, details or accessories
    • A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1054—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
    • A61G5/12—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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S297/00—Chairs and seats
    • Y10S297/04—Wheelchair

Definitions

  • the invention relates to an armchair, in particular for the disabled, equipped with a device for quickly locking footrests. It relates more precisely to an armchair whose footrest (s) are pivotally mounted relative to the frame of the armchair so as to be able to be retracted, and thus to facilitate access to the armchair or the transport thereof.
  • a pivoting footrest must be locked, at least in its service position, so that it is held in this position and that it cannot pivot unexpectedly.
  • locking must be carried out in a simple and rapid manner.
  • One of the aims of the invention is therefore to propose an armchair equipped with a device for rapidly locking footrests, in their service position.
  • the invention relates to an armchair comprising a chassis, a retractable footrest comprising a bracket supporting a shelf and connected to the chassis by arms or a wall so as to be able to pivot relative to the chassis along a substantially perpendicular pivot axis.
  • a locking device arranged on one of said arms or on said wall so that it can cooperate, in the service position of the footrest, with one of the uprights of the chassis disposed on the pivoting path of the footrest, in order to lock the latter in rotation (document US-A-3 453 027) characterized in that said locking device comprises a cam having a lateral surface arranged to cooperate with the surface lateral of said upright and mounted for rotation around an axis parallel to the axis of said upright; and a locking finger mounted on the arm or the wall near the cam and on the side of the latter opposite to said upright so that it can lock the cam in a position of cooperation with said lateral surface of the upright.
  • Another object of the invention is to provide such an armchair, the footrests of which are detachably fixed to the frame of the armchair, the locking device thus ensuring that the footrests are held in the mounted position on the armchair.
  • one of said arms or said wall carries stop means arranged so that, when the footrest is locked in rotation, these are pressed against corresponding stop means carried by said upright, to immobilize in translation the footrest in the direction of said pivot axis.
  • the footrest can simply be slidably fitted and therefore removable on a pivot axis secured to the chassis, the abovementioned abutment means ensuring the immobilization of the footrest along this axis.
  • Figure 1 a wheelchair 1 comprising in a manner known per se a parallelepiped frame 2 produced using profiles assembled by gluing, screwing or welding.
  • the chassis 2 is mounted on four wheels, namely two large wheels 3 and two casters 4.
  • Figure 1 shows only the right side of the wheelchair cut in half lengthwise. The description relating to this figure will therefore apply to the left side of the wheelchair.
  • a footrest 6 which mainly comprises, and in a manner known per se, a bar or bracket 7. At one end of the bracket 7 is mounted perpendicularly a shelf 8 which can be folded against the stem 7.
  • the footrest 6 also comprises, in a manner known per se, two arms 9, 10 essentially non-parallel to the stem 7, which are distant from each other and parallel to each other.
  • the two arms 9, 10 are fixed by one end to the bracket 7 and are pivotally mounted by the other end on two respective studs 11, 12 aligned on the same geometric pivot axis 13.
  • the pivot axis 13 is parallel to the front upright 5 of the chassis 2, that is to say perpendicular to the bearing plane of the wheelchair 1 on the ground; it is set back relative to the front face and to the front upright 5 of the chassis 2, but outside of the chassis 2 relative to the right side thereof.
  • the footrest 6 as a whole can rotate around the pivot axis 13 to be folded down on the right side of the chassis 2.
  • its lower arm 9 abuts against the front upright 5 which is disposed on the pivot path of this arm.
  • the lower arm 9 of the footrest 6 has, in its central part, a U-shaped section (Figure 3). Its wings 14, 15 are perpendicular to the pivot axis 13 and it is turned, in the operating position of the footrest 6, towards the front upright 5.
  • the lower arm 9 has in its two wings 14, 15, the side of the stud 11, a notch 26 intended to receive the front upright 5.
  • a cam 17 is rotatably mounted around an axis 16 which passes through it in its central part. Its axis 16 is perpendicular to the wings 14, 15 of the lower arm 9, therefore parallel to the axis of the front upright 5 and to the pivot axis 13 of the footrest 6.
  • This cam 17 has a portion of lateral surface 18 which is of concave cylindrical shape and which is turned towards the nipple 11. It presents te also a shoulder 19 of axial direction which is substantially diametrically opposite to the concave cylindrical portion 18.
  • the cam 17 is subjected to a torque (in the counterclockwise direction, as shown in Figure 2) by means of a torsion spring 20 disposed on an axis 21 parallel to the axis 16 of the cam 17, between this cam and the base 22 of the lower arm 9.
  • a torsion spring 20 disposed on an axis 21 parallel to the axis 16 of the cam 17, between this cam and the base 22 of the lower arm 9.
  • One end of the torsion spring 20 bears against the cam 17, and the other end against the base 22 of the lower arm 9.
  • a locking finger 23 Inside the lower arm 9 of the footrest 6 and on the side of the bracket 7, is also mounted for rotation, along an axis 24 perpendicular to its wings 14, 15, a locking finger 23.
  • This locking finger 23 extends lengthwise along the lower arm 9, essentially on the open side of the lower arm 9.
  • the axis of rotation 24 of the locking finger 23, is arranged in its central part, so that the locking finger 23 can tilt around the axis of rotation 24.
  • a torsion spring 25 is mounted on the axis of rotation 24, similar to that of the cam 17, but in such a way that the locking pin 23 is subjected to a torque clockwise rotation (fig. 2).
  • the front upright 5 of the chassis has, at least in its region intended to cooperate with the lower arm 9, a section in the general shape of a U.
  • the base of this U is rounded so as to form a surface portion 27 of convex cylindrical shape corresponding to the concave cylindrical shape of the cylindrical portion 18 of the aforementioned cam 17.
  • a cylindrical pin 28 is mounted across the two wings 29, 30 of the front upright 5. It protrudes from the side of the upright intended to cooperate with the lower arm 9 of the footrest 6. The diameter of the pin 28 is slightly less than the distance separating the two wings 14, 15 from the lower arm 9.
  • the cam 17 and the locking finger 23 described above constitute a device for locking the footrest 6 in its service position shown in the figures.
  • pressure is first exerted on the locking finger 23 so as to release the cam 17, which then rotates by a certain angle, in order to receive the front upright 5.
  • the flap is then folded down. footrest 6, from its retracting position in which it is arranged on the side of the chassis 2, to place it in the service position.
  • the front upright 5 is applied against the cylindrical portion 18 of the cam 17, and it drives the latter in rotation until the wings 14, 15 of the lower arm 9 abut against the front upright 5
  • the release of the locking finger 23 then makes it possible to immobilize the cam 17 in its final position.
  • the lower arm 9 is therefore immobilized in rotation, since the cam 17 is forcibly applied against the front upright 5, by its cylindrical portion 18.
  • the lower arm 9 when the lower arm 9 is folded against the front upright 5, it covers the protruding end of the pin 28 fixed across the front upright 5.
  • the lower arm 9, and therefore the assembly of the footrest 6, are immobilized in translation along the direction of the pivot axis 13 of the footrest 6: in fact, the end of the pin 28 is disposed between the two wings 14, 15 of the lower arm 9 and cannot move relative to this arm.
  • the abovementioned abutment means therefore consist, on the one hand, of the pin 28, and on the other hand, of the wings 14, 15 of the lower arm 9.
  • connection means to the chassis 2 are not arms 9, 10 but are constituted for example by a continuous wall which extends along the bracket.
  • the locking device is fixed to this wall.

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)
  • Passenger Equipment (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Claims (5)

1. Stuhl mit folgenden Bestandteilen:
- einem Chassis (2);
- einer zusammenklappbaren Fußstütze (6) mit einem Träger (7), der eine Auflage (8) trägt und über Arme (9, 10) oder eine Wand mit dem Chassis (2) derart verbunden ist, daß er relativ zu dem Chassis (2) um eine zur Stützebene des Stuhles auf den Boden etwa senkrecht stehenden Achse (13) verschwenkbar ist;
- einer Verriegelungsvorrichtung an einem der genannten Arme (9) oder genannten Wand, derart, daß sie in der Arbeitsstellung der Fußstütze (6) mit einer der Streben (5) des Chassis (2), die im Schwenkbereich der Fußstütze (6) angeordnet ist, zusammenwirkt, um diese drehfest zu verriegeln, dadurch gekennzeichnet, daß die genannte Verriegelungsvorrichtung folgende Teile aufweist:
- einen Nocken (17) mit einer Seitenfläche (18), die mit einer Seite (27) der genannten Strebe (5) zusammenwirkt und die an dem Arm (9) oder an der Wand drehbar gelagert ist, und zwar um eine erste Achse (16), die parallel zu der Achse der genannten Strebe (5) verläuft; und
- ein Blockierglied (23), das an dem Arm (9) oder der Wand in der Nähe des Nockens (17) und der ihr entgegengesetzten Seite der Strebe (5) derart montiert ist, daß es den Nocken (17) relativ zu dem Arm blockieren kann, und zwar in einer Kooperationsstellung mit der genannten Seite (27) der Strebe (5).
2. Stuhl nach Anspruch 1, dadurch gekennzeichnet, daß das genannte Blockierglied (23) verdrehbar um eine zweite Achse (24) gelagert ist, die parallel zur Achse der genannten Strebe (5) verläuft, und daß es elastisch unter der Wirkung eines Drehmomentes in vorgegebenem Sinn steht, wobei der genannte Nocken (17) unter der elastischen Wirkung eines entgegengesetzten Drehmomentes steht.
3. Stuhl nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die genannte Strebe (5) des Chassis (2) an der genannten Seite der Kooperation mit dem genannten Nocken (17) eine zylindrische konvexe Oberfläche (27) aufweist, wobei die genannte Seitenfläche des Nockens (17) eine dazu korrespondierende zylindrische konkave Form (18) aufweist.
4. Stuhl nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß einer der genannten Arme (9, 10) oder die genannte Wand Anschlagmittel (14, 15) trägt, die derart angeordnet sind, daß sie beim drehfesten Verriegeln der Fußstütze (6) in Anlage gelangen mit korrespondierenden Anschlagmitteln (28) der genannten Strebe (5), um eine Verstellung der Fußstütze (6) entlang der Richtung der genannten Schwenkachse (13) zu blockieren.
5. Stuhl nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Fußstütze (6) zwei Arme (9, 10) aufweist, über deren Enden sie mit dem. genannten Chassis (2) verbunden ist, wobei die beiden Arme (9, 10) im wesentlichen senkrecht zu der genannten Schwenkachse (13) verlaufen und der eine (9) von beiden die genannte Verriegelungsvorrichtung (17, 23) und die genannten Anschlagmittel (14, 15) der Fußstütze (6) trägt.
EP86400969A 1985-05-07 1986-05-05 Stuhl für Behinderte mit Vorrichtung zum schnellen Arretieren der Fussstützen Expired - Lifetime EP0201424B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86400969T ATE57611T1 (de) 1985-05-07 1986-05-05 Stuhl fuer behinderte mit vorrichtung zum schnellen arretieren der fussstuetzen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8506913 1985-05-07
FR8506913A FR2581537B1 (fr) 1985-05-07 1985-05-07 Fauteuil roulant equipe d'un dispositif pour verrouiller rapidement des repose-pied

Publications (2)

Publication Number Publication Date
EP0201424A1 EP0201424A1 (de) 1986-12-17
EP0201424B1 true EP0201424B1 (de) 1990-10-24

Family

ID=9319035

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86400969A Expired - Lifetime EP0201424B1 (de) 1985-05-07 1986-05-05 Stuhl für Behinderte mit Vorrichtung zum schnellen Arretieren der Fussstützen

Country Status (6)

Country Link
US (1) US4678233A (de)
EP (1) EP0201424B1 (de)
JP (1) JPS6297550A (de)
AT (1) ATE57611T1 (de)
DE (1) DE3675070D1 (de)
FR (1) FR2581537B1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4790553A (en) * 1987-11-16 1988-12-13 Motion Designs, Inc. Lightweight wheelchair having swing-away footrest assembly
USD314700S (en) 1989-02-21 1991-02-19 Lurkis Jeffry L Bicycle handlebar grip
US4997154A (en) * 1989-05-11 1991-03-05 Little Roy M Quick release clamp assembly
US5560627A (en) * 1993-11-16 1996-10-01 Guardian Products, Inc. Low cost wheelchair
EP0895767A1 (de) * 1997-08-06 1999-02-10 Sunrise Medical, S.L. Rollstuhl
US20050005345A1 (en) * 2003-07-07 2005-01-13 Hui-Mei Chen Bra cup padding structure
EP1716832B1 (de) * 2005-04-27 2009-04-01 TSL Sport Equipment Verbesserte Tragbahre
EP3501470B1 (de) 2017-12-19 2021-06-09 Permobil AB Beinstützenauslösungsmechanismus und rollstuhl damit

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA783419A (en) * 1968-04-23 Gendron Wheel Company Swing-away foot rest for invalid wheel chairs
GB1153036A (en) * 1965-09-24 1969-05-21 Vessa Ltd Improvements in Invalid Wheel Chairs
US3453027A (en) * 1966-10-31 1969-07-01 Mobilaid Inc Latch for swinging footrest
GB1185160A (en) * 1966-11-24 1970-03-25 Richards Son & Allwin Ltd Improvements relating to Invalid Chairs
US3854774A (en) * 1973-08-06 1974-12-17 Gendron Diemer Inc Swing-away footrest for invalid wheelchairs
GB1565986A (en) * 1977-09-28 1980-04-30 Vessa Ltd Wheel chairs
US4572576A (en) * 1984-08-20 1986-02-25 Quadra Wheelchairs, Inc. Wheelchair with swingable foot support assemblies

Also Published As

Publication number Publication date
FR2581537A1 (fr) 1986-11-14
US4678233A (en) 1987-07-07
JPS6297550A (ja) 1987-05-07
EP0201424A1 (de) 1986-12-17
ATE57611T1 (de) 1990-11-15
FR2581537B1 (fr) 1987-07-10
DE3675070D1 (de) 1990-11-29

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