FR2740676A1 - Cross country wheelchair chassis - Google Patents
Cross country wheelchair chassis Download PDFInfo
- Publication number
- FR2740676A1 FR2740676A1 FR9513181A FR9513181A FR2740676A1 FR 2740676 A1 FR2740676 A1 FR 2740676A1 FR 9513181 A FR9513181 A FR 9513181A FR 9513181 A FR9513181 A FR 9513181A FR 2740676 A1 FR2740676 A1 FR 2740676A1
- Authority
- FR
- France
- Prior art keywords
- sleeve
- wheelchair
- chair
- vertical element
- links
- 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.)
- Granted
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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
- A61G5/085—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding up and down, e.g. reducing or expanding the overall height of the wheelchair
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- 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)
Abstract
Description
La présente invention est relative aux fauteuils roulants permettant de rouler sur sol meuble et irrégulier tel que plage de sable et facilitant la mise à l'eau de personnes handicapées. The present invention relates to wheelchairs for driving on loose and irregular ground such as sandy beach and facilitating the launching of disabled people.
Est connu du public, le principe d'un fauteuil roulant, repliable ou non, muni de deux essieux sur lesquels sont montées des roues à larges bandes de roulement dont au moins deux sont gonflables et à déformation élastique. Is known to the public, the principle of a wheelchair, folding or not, provided with two axles on which are mounted wheels with large treads, at least two of which are inflatable and have elastic deformation.
Est bien connu également le concept de combinaison de roues pleines et gonflables permettant la flottabilité du fauteuil tout en facilitant la mise à l'eau du handicapé et son retour sur le fauteuil pour le ramener sur la plage. Is also well known the concept of combination of solid and inflatable wheels allowing the buoyancy of the chair while facilitating the launching of the disabled and his return on the chair to bring him back to the beach.
Toutefois, certains fauteuils roulants, par leur conception et/ou leur réalisation, ne supportent pas un usage répété en eau de mer ; leur rigidité et leur pliabilité laissent à désirer. However, some wheelchairs, by their design and / or construction, do not support repeated use in seawater; their rigidity and foldability leave something to be desired.
La présente invention a pour but de pallier à ces inconvénients en proposant un fauteuil roulant d'une grande simplicité, comprenant un châssis tubulaire en métal inoxydable, constitué par deux éléments verticaux et un jeu de deux paires de biellettes intermédiaires horizontales reliées aux éléments verticaux par des articulations, le tout formant un parallélogramme déformable uniquement dans le sens longitudinal, et dont la rigidification est assurée par une paire d'accoudoirs dont une extrémité est mobile verticalement et horizontalement et l'autre, rendue solidaire des deux biellettes horizontales hautes par serrage d'un boulon. The present invention aims to overcome these drawbacks by proposing a very simple wheelchair, comprising a tubular frame made of stainless metal, consisting of two vertical elements and a set of two pairs of horizontal intermediate links connected to the vertical elements by joints, the whole forming a deformable parallelogram only in the longitudinal direction, and the stiffening of which is ensured by a pair of armrests, one end of which is movable vertically and horizontally and the other, made integral with the two high horizontal rods by tightening d 'A bolt.
Les dessins annexes illustrent l'invention - la figure 1 représente une vue en perspective du fauteuil. The accompanying drawings illustrate the invention - Figure 1 shows a perspective view of the chair.
- les figures 2, 3, 4 et 5 représentent le dispositif d'accoudoir mobile selon l'invention.- Figures 2, 3, 4 and 5 show the mobile armrest device according to the invention.
- les figures 6 et 7 représentent un exemple d'articulation des parties fixes du châssis du fauteuil.- Figures 6 and 7 show an example of articulation of the fixed parts of the chair frame.
- la figure 8 illustre le mode de pliage du fauteuil.- Figure 8 illustrates the folding mode of the chair.
En référence à ces dessins, le fauteuil roulant comprend un châssis tubulaire constitué d'un élément vertical avant (1) et d'un élément vertical arrière (2), ce dernier formant dossier. With reference to these drawings, the wheelchair comprises a tubular frame consisting of a front vertical element (1) and a rear vertical element (2), the latter forming a backrest.
L'élément arrière (2) et l'élément avant (1) sont reliés entre eux par au-moins quatre biellettes parallèles horizontales (3) et (4), de longueurs identiques et assemblées à l'élément arrière (2) et l'élément avant (1) du châssis par des articulations (5). L'ensem ble forme un parallélogramme déformable permettant le pliage du fauteuil sur lui-même afin de faciliter son transport et son rangement.The rear element (2) and the front element (1) are interconnected by at least four horizontal parallel links (3) and (4), of identical lengths and assembled with the rear element (2) and l 'front element (1) of the chassis by joints (5). The assembly forms a deformable parallelogram allowing the folding of the chair on itself in order to facilitate its transport and its storage.
Dans la forme de réalisation particulièrement avantageuse illustrée par les figures 6, 7 et 8, les articulations (5) sont con çues de telle sorte que la déformation du parallélogramme constitué par l'élément avant (1), l'élément arrière (2) et les biellettes (3) et (4) ne se fait que dans le sens longitudinal du fauteuil, sans possibilité de déformation transversale. In the particularly advantageous embodiment illustrated in Figures 6, 7 and 8, the joints (5) are designed so that the deformation of the parallelogram formed by the front element (1), the rear element (2) and the links (3) and (4) are only made in the longitudinal direction of the chair, without the possibility of transverse deformation.
En effet, les articulations telles qu'illustrées en figure 6 et 7 sont des chapes en forme de "U", le fond du "U" étant soudé sur les montants (10) des éléments verticaux (1) et (2) du châssis, les extrémités des biellettes (3) et (4) venant se loger à l'intérieur des bras du "U", et, rendues solidaires par des axes formés d'une tige filetée munie d'écrous borgnes. Indeed, the joints as illustrated in FIG. 6 and 7 are "U" -shaped yokes, the bottom of the "U" being welded to the uprights (10) of the vertical elements (1) and (2) of the chassis , the ends of the rods (3) and (4) being housed inside the arms of the "U", and, made integral by axes formed by a threaded rod provided with blind nuts.
La figure 6 est une vue en élevation illustrant la forme et la position des articulations supérieures droites. Figure 6 is an elevational view illustrating the shape and position of the upper right joints.
La figure 7 est une vue de dessus de la figure 6. Figure 7 is a top view of Figure 6.
La figure 8 est une vue en élevation illustrant la rotation des éléments des figures 6 et 7. FIG. 8 is an elevation view illustrating the rotation of the elements of FIGS. 6 and 7.
L'un des perfectionnements, objet de la présente invention, consiste en la rigidification du châssis tel que décrit précédemment par le moyen de deux tubes coudés (6) formant les accoudoirs du fauteuil. One of the improvements, object of the present invention, consists in stiffening the chassis as described above by means of two bent tubes (6) forming the armrests of the chair.
Chaque accoudoir (6) comporte à une extrémité, un manchon cylindrique vertical soudé (9) permettant de coulisser et de pivoter sur chacun des montants verticaux (10) de l'élément arrière (2) du châssis et à l'autre extrémité, un élément cylindrique mâle (11) venant se loger dans un manchon cylindrique (12) correspondant soudé sur chacune des biellettes (3) formant l'assise du fauteuil. Each armrest (6) has at one end a welded vertical cylindrical sleeve (9) for sliding and pivoting on each of the vertical uprights (10) of the rear element (2) of the chassis and at the other end, a male cylindrical element (11) being received in a corresponding cylindrical sleeve (12) welded on each of the rods (3) forming the seat of the chair.
Chaque élément cylindrique (11) de chaque accoudoir (6) une fois introduit dans le manchon (12), est bloqué par un boulon (13) dont la tête est munie d'une tige transversale pour un serrage manuel et dont la partie filetée vient se visser dans un taraudage pratiqué dans le manchon (12).Each cylindrical element (11) of each armrest (6) once introduced into the sleeve (12), is locked by a bolt (13) whose head is provided with a transverse rod for manual tightening and whose threaded part comes screw into a thread made in the sleeve (12).
De par cette conception, la rigidification du châssis peut être assurée par un seul des deux accoudoirs (6), l'autre accoudoir étant pivoté et effacé vers l'arrière du châssis pour permettre le transfert latéral de la personne handicapée, qui peut prendre appui sur l'autre accoudoir (6) bloqué. By this design, the stiffening of the chassis can be ensured by only one of the two armrests (6), the other armrest being pivoted and erased towards the rear of the chassis to allow the lateral transfer of the disabled person, who can take support on the other armrest (6) blocked.
Un autre avantage des perfectionnements objet de la présente invention, tels que décrits précédemment, est que le fauteuil est repliable sur lui-même, sans l'aide d'outil et sans retirer les roues, ni aucune des parties constitutives du fauteuil roulant. Another advantage of the improvements which are the subject of the present invention, as described above, is that the chair is foldable on itself, without the aid of a tool and without removing the wheels, or any of the constituent parts of the wheelchair.
Le pliage du fauteuil s'effectue comme illustré dans les figures 5 et 6, en dévissant les boulons (13) de manière à débloquer les extrémités (11) de chaque accoudoir (6) et permettre de les faire coulisser vers le haut pour dégager lesdites extrémités (11) de leur logement respectif (12). Les accoudoirs (6) sont alors pivotés complétement vers l'arrière ou vers l'avant de l'élément arrière (2) du châssis. L'opérateur poussera dès lors ledit élément arrière (2) vers l'avant. The folding of the chair is carried out as illustrated in Figures 5 and 6, by unscrewing the bolts (13) so as to unlock the ends (11) of each armrest (6) and allow them to slide upwards to release said ends (11) of their respective housing (12). The armrests (6) are then pivoted completely backwards or forwards of the rear element (2) of the chassis. The operator will therefore push said rear element (2) forward.
Pour des raisons évidentes, vu l'usage du fauteuil roulant en milieu aquatique et/ou marin, et pour la sécurité du handicapé, tous les éléments du fauteuil tels que décrits précédemment sont réalisés en métal inoxydable et principalement les éléments (1 et 2), les pièces intermédiaires (3 et 4), les accoudoirs (6) et le repose-pied relevable (14) sont réalisés en tube inoxydable lisse et sans aspérité. For obvious reasons, given the use of the wheelchair in an aquatic and / or marine environment, and for the safety of the disabled, all the elements of the wheelchair as described above are made of stainless metal and mainly the elements (1 and 2) , the intermediate parts (3 and 4), the armrests (6) and the lifting footrest (14) are made of smooth stainless steel tube without roughness.
On remarquera d'autre part que le fauteuil roulant représenté en figure 1 comporte des roues à larges bandes de roulement et des roues gonflables à déformation élastique de façon connue en soi. It will also be noted that the wheelchair shown in FIG. 1 has wheels with large treads and inflatable wheels with elastic deformation in a manner known per se.
Selon une variante non illustrée, les deux roues avant non directionnelles peuvent être remplacées par une ou deux roues directionnelles sans modifier l'esprit de l'invention.According to a variant not illustrated, the two non-directional front wheels can be replaced by one or two directional wheels without modifying the spirit of the invention.
De même, la sellerie du dossier (15) et de l'assise (16) du fauteuil, simplement esquissée en figure 1, sera avantageusement réalisée en toile synthétique imputrescible et aérée, maintenue de place en place par enveloppement des biellettes supérieures (3) et des montants (10) par des boutons pressions pour un montage et démontage manuels rapides en vue de nettoyage et/ou remplacement. Similarly, the upholstery of the backrest (15) and of the seat (16) of the armchair, simply sketched in FIG. 1, will advantageously be made of rot-proof and ventilated synthetic canvas, held in place by wrapping the upper links (3) and uprights (10) by snaps for quick manual assembly and disassembly for cleaning and / or replacement.
Les dispositifs selon l'invention sont particulièrement destinés aux fauteuils roulants permettant le roulement sur terrain meuble et irrégulier et la mise à l'eau des handicapés. The devices according to the invention are particularly intended for wheelchairs allowing rolling on loose and irregular ground and putting the disabled in the water.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9513181A FR2740676B3 (en) | 1995-11-08 | 1995-11-08 | FOLDABLE WHEELCHAIR FOR USE IN THE MARINE ENVIRONMENT |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9513181A FR2740676B3 (en) | 1995-11-08 | 1995-11-08 | FOLDABLE WHEELCHAIR FOR USE IN THE MARINE ENVIRONMENT |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2740676A1 true FR2740676A1 (en) | 1997-05-09 |
FR2740676B3 FR2740676B3 (en) | 1998-01-09 |
Family
ID=9484330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9513181A Expired - Fee Related FR2740676B3 (en) | 1995-11-08 | 1995-11-08 | FOLDABLE WHEELCHAIR FOR USE IN THE MARINE ENVIRONMENT |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2740676B3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2106777A3 (en) * | 2008-04-03 | 2010-05-26 | Meyra Wilhelm Meyer Gmbh & Co. Kg | Wheelchair |
-
1995
- 1995-11-08 FR FR9513181A patent/FR2740676B3/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2106777A3 (en) * | 2008-04-03 | 2010-05-26 | Meyra Wilhelm Meyer Gmbh & Co. Kg | Wheelchair |
Also Published As
Publication number | Publication date |
---|---|
FR2740676B3 (en) | 1998-01-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |