WO1985001205A1 - Invalid chair based on composite materials - Google Patents

Invalid chair based on composite materials Download PDF

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Publication number
WO1985001205A1
WO1985001205A1 PCT/FR1984/000200 FR8400200W WO8501205A1 WO 1985001205 A1 WO1985001205 A1 WO 1985001205A1 FR 8400200 W FR8400200 W FR 8400200W WO 8501205 A1 WO8501205 A1 WO 8501205A1
Authority
WO
WIPO (PCT)
Prior art keywords
polygons
chair
sides
composite material
chair according
Prior art date
Application number
PCT/FR1984/000200
Other languages
French (fr)
Inventor
Michel Berger
Charles Baert
Original Assignee
Composites Aquitaine
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
Priority claimed from FR8314706A external-priority patent/FR2551970B1/en
Priority claimed from FR8413840A external-priority patent/FR2569980B2/en
Application filed by Composites Aquitaine filed Critical Composites Aquitaine
Publication of WO1985001205A1 publication Critical patent/WO1985001205A1/en

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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
    • 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
    • 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
    • A61G5/125—Rests specially adapted therefor, e.g. for the head or the feet for arms
    • 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 present invention relates to an armchair for firms, or a wheelchair, based on composite materials.
  • Such armchairs consist essentially of a seat supported by drive wheels which are optionally provided with a handrail, and by support and steering wheels.
  • These chairs generally include footrests. They can possibly be foldable on themselves, so, for example, to be able to be stored in a trunk of car, thanks to crossed bars pivoting one with respect to the other around a common axis located in the middle of them. The ends of these bars are fixed by a pivoting device to the side walls of the chair or to structures integral with them.
  • These currently known armchairs are produced from a tubular structure in chromed metal most generally. But such a structure is cumbersome: therefore the disabled person, or his companion, often has great difficulty in folding and then lifting such a chair when it proves necessary.
  • One of the aims of the present invention is therefore to provide a wheelchair, or wheelchair, which is both robust and as light as possible.
  • Another object of the invention is to provide such an armchair whose folding and deployment are as simple and safe as possible.
  • a further object of the invention is to provide an armchair of this type at a relatively moderate cost.
  • a disabled chair, or wheelchair based on composite materials comprising in particular a seat fixed between two lateral flanks, each comprising in particular a wheel.
  • drive unit possibly fitted with a handrail, a holding and steering wheel and a footrest, and means for keeping these lateral flanks apart and folding this chair.
  • the two lateral flanks and the drive wheels are made of comoosite material.
  • De Dréf ⁇ rence cha ⁇ ue driving wheel is made by asse blaqe of two half-wheels sui ⁇ vant a plane perpendicular to their axis.
  • the footrest of each flank is made of such a composite material.
  • the means for holding the two lateral flanks and scarves and folding the chair are, at least partially, made of a composite material.
  • these means are constituted by at least a set of two polygons which are articulated with one another, on the one hand, and each on a side, on the other hand, and which cooperates with other means known in themselves for ensure the stability and folding of the chair as well as move it away from the sides.
  • these means consist of two sets of two polygons each.
  • these means consist of two sets of two polygons each, each set being articulated on the sides and the two polygons of the same set being articulated with one another.
  • the polygons of the same set are hinged together according to a common side.
  • these polygons are trapezoids which are articulated by their large base on the corresponding flank and between them by their small base.
  • these means comprise, in addition to two sets of two polygons each, a bar parallel to the sides and joining the points of articulation of the polygons of the same set together.
  • such a disabled chair also includes a device for locking it in the unfolded position which makes it possible to block at least one articulation between two polygons of the same assembly in such a way that these are in the extension of one another.
  • the polygons are made of a composite material.
  • Each element of such a infirmary chair which is made of a composite material, comprises two walls, or skins, consisting of a filamentary frame embedded in an organic material, between which is disposed a cellular material such as a foam or a honeycomb structure material.
  • FIG. 1 shows a schematic side view of a disabled chair according to the present invention
  • FIG. 2 is a rear view of the same chair
  • Figure 3 is a schematic bottom view of the chair shown in Figure 2.
  • the description below relates to a disabled chair in the unfolded position, that is to say in the phase of use by a disabled person.
  • the sidewall 1 comprises a base part 2, a front vertical part 3 and a rear vertical part 4.
  • Each flank 1 consists of two walls, or skins, joined in a composite material which delimit a space which can be filled with a cellular material such as a foam or a material with a honeycomb structure.
  • the front vertical part 3 is extended, forwards, by a folding footrest 5 and, downwards, by a wheel 6 for holding and steering.
  • Drive wheels 7 are each mounted on an axis 8 crossing the rear vertical part 4, in a manner known per se, and optionally have on their part
  • the distance to the wheel can vary at the discretion of the user disabled.
  • this infirmary chair also includes means which allow it to be folded, and thereby even deployed, and which make it possible to keep the two sides apart.
  • These means comprise at least one assembly composed of two polygons 10 and 11 which are articulated with one another, on the one hand, and each on a side, as shown in FIG. 2, as well as other means known in themselves coo - performing with this set.
  • This assembly is, for example, arranged perpendicular between the two rear vertical parts 4 and at a level lower than that of the seat.
  • each polygon is articulated, on the one hand, on the corresponding vertical rear part and, on the other hand, with the other polygon along a common side, preferably.
  • This set of two polygons can also be made of a composite material.
  • the composite material used to make different elements of a disabled chair according to the present invention can be the same for all or different depending on the specific constraints for each element.
  • these elements are a composite material with a filamentary structure, while the gap between these walls is filled with a composite material with a cellular structure.
  • the composite material with filamentary structure consists of a filamentary reinforcement (carbon, polyamide, glass fibers, etc.) embedded in an organic material (polyester resin, epoxy, acrylic, etc.).
  • composite with honeycomb structure generally a polyurethane or epoxy foam, for example, or a material with honeycomb structure.
  • This material composite generally has a thickness of between 1 and 2 cm.
  • each flank 1 has a thickness of about 1.5 cm and is formed of two walls, or skins, contiguous with
  • this infirmary chair comprises two sets of two polygons each 10, 11 and 12, 13.
  • the second set is arranged at a level below that of the seat and perpendicularly between the front vertical parts 3.
  • These polygons are trapezoids which are articulated by their large base on the corresponding vertical part of the corresponding flank and between them by their small base.
  • the polygons of each set are re ⁇ foldable on themselves thanks to the hinges 14 and 15 respec ⁇ tively, arranged substantially in the middle of each set.
  • These means for keeping the sides 1 apart and allowing the folding of the chair further comprise, according to this embodiment, a bar 16 parallel to the sides 1 and connecting the hinges of articulation of the polygons of each set together, as well as 'a device 17 making it possible to block one of these hinges (the hinge 14 in the present example) so that the two polygons of each set are in the extension of one another.
  • a disabled chair according to the present invention also includes all the elements that are usually encountered on such a chair: in particular armrests 18 and handles 19 arranged on the vertical part 4 in order to allow an accompanying person. push and steer the chair.

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)
  • Handcart (AREA)
  • Rehabilitation Tools (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

Invalid chair or wheel-chair based on composite materials comprising particularly a seat secured between two sides (1), each side comprising a drive wheel (7) providing with a handrail (9), a supporting and steering-wheel (6) and a foot rest (5). Both sides (1) and both drive wheels (7) as well as the foot rests (5) and means for holding the sides (1) spread apart and for holding said chair are made totally or partly with composite materials.

Description

Fauteuil d'infirmes à base de matériaux composites Disabled armchair based on composite materials
La présente invention concerne un fauteuil d'in¬ firmes, ou fauteuil roulant, à base de matériaux composites. De tels fauteuils sont constitués essentiellement d'un siège supporté par des roues motrices lesquelles sont éventuellement munies d'une main courante, et par des roues de maintien et de direction. Ces fauteuils comportent géné¬ ralement des appuis-pieds. Ils peuvent être éventuellement repliables sur eux-mêmes, de façon, par exemple, à pouvoir être rangés dans une malle de voiture, grâce à des barres croisées pivotantes l'une par rapport à l'autre autour d'un axe commun situé au milieu d'elles. Les extrémités de ces barres sont fixées par un dispositif pivotant, aux parois latérales du fauteuil ou à des structures solidaires de celles-ci. Ces fauteuils actuellement connus sont réalisés à partir d'une structure tubulaire en métal chromé le plus généralement. Mais une telle structure est lourde : de ce fait l'infirme, ou son accompagnateur, a souvent de grandes difficultés à plier puis à soulever un tel fauteuil lorsque cela se révèle nécessaire.The present invention relates to an armchair for firms, or a wheelchair, based on composite materials. Such armchairs consist essentially of a seat supported by drive wheels which are optionally provided with a handrail, and by support and steering wheels. These chairs generally include footrests. They can possibly be foldable on themselves, so, for example, to be able to be stored in a trunk of car, thanks to crossed bars pivoting one with respect to the other around a common axis located in the middle of them. The ends of these bars are fixed by a pivoting device to the side walls of the chair or to structures integral with them. These currently known armchairs are produced from a tubular structure in chromed metal most generally. But such a structure is cumbersome: therefore the disabled person, or his companion, often has great difficulty in folding and then lifting such a chair when it proves necessary.
Aussi un des buts de la présente invention est-il de fournir un fauteuil d'in irmes, ou fauteuil roulant, à la fois robuste et aussi léger que possible.One of the aims of the present invention is therefore to provide a wheelchair, or wheelchair, which is both robust and as light as possible.
Un autre but de 1'invention est de fournir un tel fauteuil dont le repliement et le déploiement sont aussi simples et sûrs que possible.Another object of the invention is to provide such an armchair whose folding and deployment are as simple and safe as possible.
Un but supplémentaire de 1'invention est de fournir un fauteuil de ce type à un coût relativement modéré.A further object of the invention is to provide an armchair of this type at a relatively moderate cost.
Ces buts ainsi que d'autres, qui apparaîtront par la suite, sont atteints par un fauteuil d'infirmes, ou fau¬ teuil roulant , à base de matériaux composites comprenant notamment un siège fixé entre deux flancs latéraux, chacun comportant en particulier une roue motrice munie éventuelle¬ ment d'une main courante, une roue de maintien et de direction et un appui-pied, et des moyens pour maintenir écartés ces flancs latéraux et replier ce fauteuil. Selon la présente invention, les deux flancs latéraux et les roues motrices sont en matériau comoosite. De Dréfërence chaσue roue motrice est réalisée par asse blaqe de deux demi-roues sui¬ vant un plan perpendiculaire à leur axe.These and other aims, which will appear later, are achieved by a disabled chair, or wheelchair, based on composite materials comprising in particular a seat fixed between two lateral flanks, each comprising in particular a wheel. drive unit possibly fitted with a handrail, a holding and steering wheel and a footrest, and means for keeping these lateral flanks apart and folding this chair. According to the present invention, the two lateral flanks and the drive wheels are made of comoosite material. De Dréfërence chaσue driving wheel is made by asse blaqe of two half-wheels sui¬ vant a plane perpendicular to their axis.
Avantageusement, l'appui-pied de chaque flanc est réalisé dans un tel matériau composite.Advantageously, the footrest of each flank is made of such a composite material.
Selon un mode de réalisation préféré de l'invention, les moyens pour maintenir les deux flancs latéraux et écar¬ tés et replier le fauteuil sont, au moins partiellement, réalisés en un matériau composite.According to a preferred embodiment of the invention, the means for holding the two lateral flanks and scarves and folding the chair are, at least partially, made of a composite material.
Avantageusement, ces moyens sont constitués par au moins un ensemble de deux polygones qui sont articulés entre eux, d'une part, et chacun sur un flanc, d'autre part, et qui coopère avec d'autres moyens connus en eux-mêmes pour assurer la stabilité et le repliement du fauteuil ainsi que 1'écartentent des flancs.Advantageously, these means are constituted by at least a set of two polygons which are articulated with one another, on the one hand, and each on a side, on the other hand, and which cooperates with other means known in themselves for ensure the stability and folding of the chair as well as move it away from the sides.
De préférence, ces moyens sont constitués par deux ensembles de deux polygones chacun.Preferably, these means consist of two sets of two polygons each.
Avantageusement, ces moyens sont constitués par deux ensembles de deux polygones chacun, chaque ensemble étant articulé sur les flancs et les deux polygones d'un même ensemble étant articulés entre eux. De préférence, les polygones d'un même ensemble sont articulés entre eux selon un côté commun.Advantageously, these means consist of two sets of two polygons each, each set being articulated on the sides and the two polygons of the same set being articulated with one another. Preferably, the polygons of the same set are hinged together according to a common side.
Avantageusement, ces polygones sont des trapèzes qui sont articulés par leur grande base sur le flanc corres¬ pondant et entre eux par leur petite base. De préférence, ces moyens comprennent, outre deux ensembles de deux polygones chacun, une barre parallèle aux flancs et joignant les points d'articulation des polygones d'un même ensemble entre eux.Advantageously, these polygons are trapezoids which are articulated by their large base on the corresponding flank and between them by their small base. Preferably, these means comprise, in addition to two sets of two polygons each, a bar parallel to the sides and joining the points of articulation of the polygons of the same set together.
Avantageusement, un tel fauteuil d'infirmes comprend également un dispositif pour le verrouiller en position dé¬ pliée qui permet de bloquer au moins une articulation entre deux polygones d'un même ensemble de telle façon que ceux-ci soient dans le prolongement l'un de l'autre.Advantageously, such a disabled chair also includes a device for locking it in the unfolded position which makes it possible to block at least one articulation between two polygons of the same assembly in such a way that these are in the extension of one another.
De préférence, les polygones sont réalisés en un matériau composite.Preferably, the polygons are made of a composite material.
Chaque élément d'un tel fauteuil d'infirmes qui est réalisé en un matériau composite, comprend deux parois, ou peaux, constituées d'une armature filamenteuse noyée dans une matière organique, entre lesquelles est disposé un ma¬ tériau alvéolaire telle qu'une mousse ou un matériau à structure nid d'abeilles. La description qui va suivre et qui ne présente aucun caractère limitatif, doit être lue en regard des figures annexées parmi lesquelles :Each element of such a infirmary chair which is made of a composite material, comprises two walls, or skins, consisting of a filamentary frame embedded in an organic material, between which is disposed a cellular material such as a foam or a honeycomb structure material. The description which follows and which does not have any limiting character, should be read with reference to the appended figures among which:
- la figure 1 représente une vue de côté schématique d'un fauteuil d'infirmes selon la présente invention, - la figure 2 est une vue arrière de ce même fauteuil, et- Figure 1 shows a schematic side view of a disabled chair according to the present invention, - Figure 2 is a rear view of the same chair, and
- la figure 3 est une vue de dessous schématique du fauteuil représenté à la figure 2.- Figure 3 is a schematic bottom view of the chair shown in Figure 2.
La description ci-après est relative à un fauteuil d'infirmes en position dépliée, c'est-à-dire en phase d'u- tilisation par un infirme.The description below relates to a disabled chair in the unfolded position, that is to say in the phase of use by a disabled person.
Un tel fauteuil roulant comprend des flancs sur chacun de ces côtés et, pour des raisons de commodités, la majeure partie de la description ne se référera qu'à un seul de ces flancs. Ainsi, le flanc 1 comporte une partie de base 2, une partie verticale avant 3 et une partie verticale arriè¬ re 4.Such a wheelchair includes sidewalls on each of these sides and, for reasons of convenience, most of the description will refer to only one of these sidewalls. Thus, the sidewall 1 comprises a base part 2, a front vertical part 3 and a rear vertical part 4.
Chaque flanc 1 est constitué de deux parois, ou peaux, accolées en un matériau composite qui délimitent un espace pouvant être rempli d'un matériau alvéolaire tel qu'une mousse ou un matériau à structure nid d'abeilles.Each flank 1 consists of two walls, or skins, joined in a composite material which delimit a space which can be filled with a cellular material such as a foam or a material with a honeycomb structure.
La partie verticale avant 3 est prolongée, vers l'avant, par un appui-pied 5 repliable et, vers le bas, par une roulette 6 de maintien et de direction. Des roues motrices 7 sont montées chacune sur un axe 8 traversant la partie verticale arrière 4, de façon connue en soi, et comportent éventuellement sur leur partieThe front vertical part 3 is extended, forwards, by a folding footrest 5 and, downwards, by a wheel 6 for holding and steering. Drive wheels 7 are each mounted on an axis 8 crossing the rear vertical part 4, in a manner known per se, and optionally have on their part
OMPI extérieure une main courante 9 dont la distance à la roue peut varier au gré de l'infirme utilisateur.WIPO exterior a handrail 9, the distance to the wheel can vary at the discretion of the user disabled.
Ces roues motrices sont obtenues en collant l'une avec l'autre deux demi-roues 7a et 7b qui sont schématisées sur la figure 2 (la roue étant représentée schématiquement en coupe le long d'un rayon) .These drive wheels are obtained by bonding with each other two half-wheels 7a and 7b which are shown diagrammatically in FIG. 2 (the wheel being shown diagrammatically in section along a radius).
Selon un mode de réalisation préférée de l'inven¬ tion, ce fauteuil d'infirmes comporte également des moyens qui en permettent le repliement, et par là même le dëploie- ment, et qui permettent de maintenir les deux flancs écartés. Ces moyens comprennent au moins un ensemble composé de deux polygones 10 et 11 qui sont articulés entre eux, d'une part, et chacun sur un flanc, comme représenté sur la figure 2, ainsi que d'autres moyens connus en eux-mêmes coo- pérant avec cet ensemble.According to a preferred embodiment of the invention, this infirmary chair also includes means which allow it to be folded, and thereby even deployed, and which make it possible to keep the two sides apart. These means comprise at least one assembly composed of two polygons 10 and 11 which are articulated with one another, on the one hand, and each on a side, as shown in FIG. 2, as well as other means known in themselves coo - performing with this set.
Cet ensemble est, par exemple, disposé perpendiculaire entre les deux parties verticales arrière 4 et à un niveau inf à celui du siège. Ainsi chaque polygone est articulé, d'une part, sur la partie verticalearrière correspondante et, d'autre part, avec l'autre polygone selon un côté commun, de préfé¬ rence.This assembly is, for example, arranged perpendicular between the two rear vertical parts 4 and at a level lower than that of the seat. Thus, each polygon is articulated, on the one hand, on the corresponding vertical rear part and, on the other hand, with the other polygon along a common side, preferably.
Cet ensemble de deux polygones peut également être réalisé en un matériau composite.This set of two polygons can also be made of a composite material.
Le matériau composite utilisé pour réaliser diffé- rents éléments d'un fauteuil d'infirmes selon la présente invention, peut être le même pour tous ou différent en fonction des contraintes spécifiques pour chaque élément. En général, il s'agit pour les parois, ou peaux, de ces élé¬ ments d'un matériau composite à structure filamentaire, tan- dis que l'intervalle entre ces parois est rempli d'un matériau composite à structure alvéolaire. Le matériau composite à structure filamentaire est constitué d'une armature filamen¬ teuse (fibres de carbone, de polyamide, de verre, etc..) noyée dans une matière organique (résine de polyester, époxy, acrylique,etc— ) .Le matériau composite à structure alvéolaire généralement une mousse de polyuréthane ou époxy, par exemple, ou encore un matériau à structure nid d'abeilles. Ce matériau composite a en général une épaisseur comprise entre 1 et 2 cm. Par exemple, chaque flanc 1 a une épaisseur d'envi¬ ron 1,5 cm et est formé de deux parois, ou peaux, accolées deThe composite material used to make different elements of a disabled chair according to the present invention can be the same for all or different depending on the specific constraints for each element. In general, for the walls, or skins, these elements are a composite material with a filamentary structure, while the gap between these walls is filled with a composite material with a cellular structure. The composite material with filamentary structure consists of a filamentary reinforcement (carbon, polyamide, glass fibers, etc.) embedded in an organic material (polyester resin, epoxy, acrylic, etc.). composite with honeycomb structure generally a polyurethane or epoxy foam, for example, or a material with honeycomb structure. This material composite generally has a thickness of between 1 and 2 cm. For example, each flank 1 has a thickness of about 1.5 cm and is formed of two walls, or skins, contiguous with
0,075cm chacune dépaisseur environ reliées par un matériau à structure nid d'abeilles dont les cellules alvéolaires ont des génératrices horizontales parallèles aux axes 8 des roues motrices.0,075cm each thickness approximately connected by a material with honeycomb structure whose alveolar cells have horizontal generatrices parallel to the axes 8 of the driving wheels.
Dans le présent exemple de réalisation, ce fauteuil d'infirmes comporte deux ensembles de deux polygones chacun 10, 11 et 12, 13. Le deuxième ensemble est disposé à un niveau inférieur à celui du siège et perpendiculairement entre les parties verticales avant 3.In the present exemplary embodiment, this infirmary chair comprises two sets of two polygons each 10, 11 and 12, 13. The second set is arranged at a level below that of the seat and perpendicularly between the front vertical parts 3.
Ces polygones sont des trapèzes qui sont articulés par leur grande base sur la partie verticale correspondante du flanc correspondant et entre eux par leur petite base. Ainsi, les polygones de chaque ensemble sont re¬ pliable sur eux-mêmes grâce aux charnières 14 et 15 respec¬ tivement, disposées sensiblement au milieu de chaque ensem¬ ble. Ces moyens pour maintenir écartés les flancs 1 et permettre le repliement du fauteuil, comprennent, en outre, selon cet exemple de réalisation, une barre 16 parallèle aux flancs 1 et reliant les charnières d'articulation des polygones de chaque ensemble entre eux, ainsi qu'un dispo- sitif 17 permettant de bloquer une de ces charnières (la charnière 14 dans le présent exemple) de telle sorte que les deux polygones de chaque ensemble soient dans le pro¬ longement l'un de l'autre.These polygons are trapezoids which are articulated by their large base on the corresponding vertical part of the corresponding flank and between them by their small base. Thus, the polygons of each set are re¬ foldable on themselves thanks to the hinges 14 and 15 respec¬ tively, arranged substantially in the middle of each set. These means for keeping the sides 1 apart and allowing the folding of the chair, further comprise, according to this embodiment, a bar 16 parallel to the sides 1 and connecting the hinges of articulation of the polygons of each set together, as well as 'a device 17 making it possible to block one of these hinges (the hinge 14 in the present example) so that the two polygons of each set are in the extension of one another.
Bien évidemment, un fauteuil d'infirmes selon la présente invention comporte également tous les éléments que l'on rencontre habituellement sur un tel fauteuil : notamment des accoudoirs 18 et des poignées 19 disposées sur la partie verticale 4 afin de permettre à un accompa¬ gnateur de pousser et de diriger le fauteuil.Obviously, a disabled chair according to the present invention also includes all the elements that are usually encountered on such a chair: in particular armrests 18 and handles 19 arranged on the vertical part 4 in order to allow an accompanying person. push and steer the chair.
OMPI WIPO

Claims

REVENDICATIONS
1. Fauteuil d'infirmes à base de matériaux compo- sites comprenant notamment un siège qui est fixé entre deux flancs latéraux chacun d'eux comportant une roue motrice éventuellement munie d'une main courante, une roue de main¬ tien et de direction, un appui-pied, et des moyens pour maintenir écartés ces flancs et replier ce fauteuil, carac- térisé par le fait que les deux flancs (1) et les roues motrices (7) sont en matériau composite.1. Disabled chair based on composite materials comprising in particular a seat which is fixed between two lateral flanks each of them comprising a driving wheel optionally provided with a handrail, a hand and steering wheel, a footrest, and means for keeping these flanks apart and folding this chair, characterized by the fact that the two flanks (1) and the drive wheels (7) are made of composite material.
2. Fauteuil selon la revendication 1, caractérisé en ce que chaque roue motrice (7) est réalisée par assemblage de deux demi-roues (7a, 7b) suivant un plan perpendiculaire à l'axe (8) de chaque roue.2. Armchair according to claim 1, characterized in that each driving wheel (7) is produced by assembling two half-wheels (7a, 7b) along a plane perpendicular to the axis (8) of each wheel.
3. Fauteuil selon la revendication 1, caractérisé en ce que ledit appui-pied (5) de chaque flanc (1) est réalisé en un matériau composite.3. Chair according to claim 1, characterized in that said footrest (5) of each side (1) is made of a composite material.
4. Fauteuil selon la revendication 1, caractérisé en ce que lesdits moyens pour maintenir les deux flancs (1) écartés et replier ledit fauteuil sont, au moins partielle¬ ment réalisés en un matériau composite.4. Chair according to claim 1, characterized in that said means for holding the two sides (1) apart and folding said chair are, at least partially made of a composite material.
5. Fauteuil selon la revendication 4 , caractérisé en ce que lesdits moyens sont constitués par au moins un ensemble de deux polygones qui sont articulés entre eux, d'une part, et chacun sur un flanc (1) d'autre part, et qui coopèrent avec d'autres moyens connus en eux-mêmes pour assurer la stabilité et le repliement dudit fauteuil ainsi que l'écartement desdits flancs (1). 5. Chair according to claim 4, characterized in that said means are constituted by at least one set of two polygons which are articulated between them, on the one hand, and each on a side (1) on the other hand, and which cooperate with other means known in themselves to ensure the stability and the folding of said chair as well as the spacing of said sides (1).
6. Fauteuil selon la revendication 5 , caractérisé en ce que lesdits moyens sont constitués par deux'ensembles de deux polygones chacun.6. Chair according to claim 5, characterized in that said means are constituted by two sets of two polygons each.
7. Fauteuil selon la revendication 5 , caractérisé en ce que lesdits moyens sont constitués par deux ensembles de deux polygones chacun, chaque ensemble étant articulé sur les flancs et les deux polygones d'un même ensemble étant articulés entre eux. 7. Chair according to claim 5, characterized in that said means consist of two sets of two polygons each, each set being articulated on the sides and the two polygons of the same set being hinged together.
8. Fauteuil selon la revendication 7., caractérisé en ce que les polygones d'un même ensemble sont articulés entre eux selon un côté commun.8. Armchair according to claim 7., characterized in that the polygons of the same set are hinged together according to a common side.
9. Fauteuil selon les revendications 5 à 8 , ca- ractérisé en ce que lesdits polygones sont des trapèzes qui sont articulés par leur grande base sur le flanc corres¬ pondant et entre eux par leur petite base.9. Chair according to claims 5 to 8, charac- terized in that said polygons are trapezoids which are articulated by their large base on the corres¬ pondant side and between them by their small base.
10. Fauteuil selon les revendications 5 à , carac¬ térisé en ce que lesdits moyens comprennent, en outre, une barre (16) parallèle aux flancs (1) et joignant les points d'articulation (14, 15) des polygones d'un même ensemble entre eux.10. Chair according to claims 5 to, carac¬ terized in that said means further comprises a bar (16) parallel to the sides (1) and joining the points of articulation (14, 15) of the polygons of a even together between them.
11. Fauteuil selon les revendications 1 àlO, ca¬ ractérisé en ce qu'il comprend également un dispositif pour le verrouiller en position dépliéequi permet de bloquer une articulation entre deux polygones d'un même ensemble au moins, de telle sorte que ceux-ci soient dans le prolongement l'un de 1'autre.11. Armchair according to claims 1 to 10, ca¬ characterized in that it also comprises a device for locking it in the unfolded position which makes it possible to block an articulation between two polygons of the same set at least, so that these are an extension of each other.
12. Fauteuil selon les revendications 1 à 11, ca- ractérisé en ce que lesdits polygones sont réalisés en un matériau composite.12. Chair according to claims 1 to 11, characterized in that said polygons are made of a composite material.
13. Fauteuil selon les revendications 1 à 12, ca¬ ractérisé en ce que les éléments en matériau composite comprennent deux parois accolées en une armature filamen- teuse noyée dans une matière organique, entre lesquelles est disposé un matériau alvéolaire.13. An armchair according to claims 1 to 12, ca¬ characterized in that the elements made of composite material comprise two adjoining walls in a filamentary frame embedded in an organic material, between which is arranged a cellular material.
14. Fauteuil selon la revendication 13, caracté¬ risé en ce que ledit matériau alvéolaire est une mousse ou un matériau à structure nid d'abeilles.14. Armchair according to claim 13, caracté¬ ized in that said cellular material is a foam or a material with honeycomb structure.
OMPI „ J WIPO „ J
PCT/FR1984/000200 1983-09-15 1984-09-11 Invalid chair based on composite materials WO1985001205A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR8314706A FR2551970B1 (en) 1983-09-15 1983-09-15 ARMCHAIR FOR DISABLED PERSONS BASED ON COMPOSITE MATERIALS
FR83/14706 1983-09-15
FR8413840A FR2569980B2 (en) 1984-09-10 1984-09-10 IMPROVEMENT FOR A CHAIR OF DISABLED PERSONS BASED ON COMPOSITE MATERIALS
FR84/13840 1984-09-10

Publications (1)

Publication Number Publication Date
WO1985001205A1 true WO1985001205A1 (en) 1985-03-28

Family

ID=26223582

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1984/000200 WO1985001205A1 (en) 1983-09-15 1984-09-11 Invalid chair based on composite materials

Country Status (6)

Country Link
EP (1) EP0156835A1 (en)
AU (1) AU3392284A (en)
CA (1) CA1229785A (en)
IE (1) IE55704B1 (en)
IT (1) IT1179122B (en)
WO (1) WO1985001205A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0198957A2 (en) * 1985-04-23 1986-10-29 Günter Meier GmbH Wheel chair for invalids
FR2581299A1 (en) * 1985-05-06 1986-11-07 Poirier Ets DEVICE FOR LOCKING AND UNLOCKING A FOLDING ARMCHAIR, IN PARTICULAR A ARMCHAIR FOR DISABLED PERSONS
DE3638091A1 (en) * 1986-11-07 1988-05-19 Benno Danecker WHEELCHAIR
GB2249760A (en) * 1990-11-15 1992-05-20 Everest & Jennings Composite frame wheelchair
DE4210014A1 (en) * 1992-03-27 1993-09-30 Heckel Gmbh Wheelchair with frame made from laminated carbon@ fibre plastics panels - is driven by manual actuation of rear wheels and steered by front wheels.
GB2280405A (en) * 1993-07-27 1995-02-01 Malcolm Richard Rolston Disassemblable wheelchair
WO1997031606A1 (en) * 1996-03-01 1997-09-04 Pacific 21 Pty. Ltd. Side frame for a wheelchair and a wheelchair incorporating same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2592405A (en) * 1948-06-14 1952-04-08 Herbert A Everest Collapsible commode chair
US3142351A (en) * 1962-01-19 1964-07-28 Canadian Res Stair climbing wheelchair
US4026568A (en) * 1976-02-23 1977-05-31 Beverly Grant Rutledge Hallam Triple hinged folding T frame wheelchair
US4101143A (en) * 1977-01-03 1978-07-18 American Safety Equipment Corporation Wheelchairs
DE2903196A1 (en) * 1979-01-27 1980-07-31 Louis L Lepoix Folding mechanism for invalid chair - includes double parallelogram assembly under seat, pulled upwards to moved side frames inwards

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2592405A (en) * 1948-06-14 1952-04-08 Herbert A Everest Collapsible commode chair
US3142351A (en) * 1962-01-19 1964-07-28 Canadian Res Stair climbing wheelchair
US4026568A (en) * 1976-02-23 1977-05-31 Beverly Grant Rutledge Hallam Triple hinged folding T frame wheelchair
US4101143A (en) * 1977-01-03 1978-07-18 American Safety Equipment Corporation Wheelchairs
DE2903196A1 (en) * 1979-01-27 1980-07-31 Louis L Lepoix Folding mechanism for invalid chair - includes double parallelogram assembly under seat, pulled upwards to moved side frames inwards

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0198957A2 (en) * 1985-04-23 1986-10-29 Günter Meier GmbH Wheel chair for invalids
EP0198957B1 (en) * 1985-04-23 1992-05-06 Günter Meier GmbH Wheel chair for invalids
FR2581299A1 (en) * 1985-05-06 1986-11-07 Poirier Ets DEVICE FOR LOCKING AND UNLOCKING A FOLDING ARMCHAIR, IN PARTICULAR A ARMCHAIR FOR DISABLED PERSONS
EP0201423A1 (en) * 1985-05-06 1986-11-12 Composites Aquitaine Collapsible wheel chair with means for quick unbolting
US4712830A (en) * 1985-05-06 1987-12-15 Composites Aquitaine S.A. Folding chair comprising quick unlocking means
EP0324795B1 (en) * 1986-11-07 1992-01-29 DANECKER, Benno Wheel-chair
US5028065A (en) * 1986-11-07 1991-07-02 Benno Danecker Wheelchair
DE3638091A1 (en) * 1986-11-07 1988-05-19 Benno Danecker WHEELCHAIR
GB2249760A (en) * 1990-11-15 1992-05-20 Everest & Jennings Composite frame wheelchair
US5152543A (en) * 1990-11-15 1992-10-06 Everest & Jennings, Inc Composite frame wheelchair
DE4210014A1 (en) * 1992-03-27 1993-09-30 Heckel Gmbh Wheelchair with frame made from laminated carbon@ fibre plastics panels - is driven by manual actuation of rear wheels and steered by front wheels.
GB2280405A (en) * 1993-07-27 1995-02-01 Malcolm Richard Rolston Disassemblable wheelchair
GB2280405B (en) * 1993-07-27 1996-09-25 Malcolm Richard Rolston A wheelchair
WO1997031606A1 (en) * 1996-03-01 1997-09-04 Pacific 21 Pty. Ltd. Side frame for a wheelchair and a wheelchair incorporating same

Also Published As

Publication number Publication date
IE55704B1 (en) 1990-12-19
IE842355L (en) 1985-03-15
IT8467921A0 (en) 1984-09-14
IT1179122B (en) 1987-09-16
AU3392284A (en) 1985-04-11
IT8467921A1 (en) 1986-03-14
EP0156835A1 (en) 1985-10-09
CA1229785A (en) 1987-12-01

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