EP2722028A1 - Motorgetriebener Rollstuhl für behinderte Person - Google Patents

Abstract

The wheelchair has a supporting frame (1) that forms deformable left and right parallelograms in a backrest, and a base. A set of verticalization safety stop units (27d, 27G) is arranged in a set of armpits (33-36). A set of sheathed retention cables is arranged in the base. A carrier frame comprises two hollow tubes that are arranged in the supporting frame. A set of locking mechanisms (38d, 38G) is arranged for locking deformation of the left and right parallelograms, where the parallelograms are driven by an effect of an actuator (24).

Description

The present invention relates to equipment for persons with paraplegic and quadriplegic disabilities. It relates, in particular, to those allowing the verticalization of the patient who remains virtually constantly sitting or lying.

It also aims self-propelled self-propelled traveling means in the vertical position of the user with wheels that move thanks to geared motors providing the best torque and power consumption ratio, allowing the solution for moving in and out of the ground, which as a result, it reduces dependency problems and improves the depressive state of any person facing this situation, without forgetting that standing up allows substantial savings to be achieved simply by not having to change the situation. location of his furniture.

This above-mentioned reality is to be taken into consideration with regard to the indisputable psychological improvement of the person who has become dependent on a third party.

We know that verticalization provides a real improvement solution to what medical specialists call decubitus.

Verticalization can appreciably limit the deformities and atrophies caused by prolonged sitting or lying down. These distortions are even more critical when the subject is in a period of growth and development.

• la déminéralisation osseuse (décalcification),
• la fréquence des escarres, leur gravité et leurs conséquences,
• les complications respiratoires, cardiovasculaires, les infections urinaires, voire incontinence.

Among others, are improved by verticalization:

• bone demineralization (decalcification),
• the incidence of pressure ulcers, their severity and their consequences,
• respiratory complications, cardiovascular, urinary infections or incontinence.

In addition, and so as to recover at best its human dignity, it is desirable to accompany such a verticalization of a movement autonomy while respecting the best possible standing situation without being strapped as the invention proposes safely.

The disabled person naturally resting 90% on the soles of his feet, the 10% of the weight of his body remaining resting on the base of the gluteal muscles once the verticalization completed according to the principle of the invention, which considerably improves the harmful effect of gluteal pressure sores. Stand alone, without being strapped, and at will in the desired location is for the patient a real comfort given the above elements.

The verticalization can be instantaneous, slow or "fast", or slow or delayed in stages of waiting and this, especially for cardiovascular reasons.

The solution to the problem of verticalization combining autonomous movement is not obvious because it must meet many imperatives that are sometimes contradictory.

Stability must be ensured by the fact that the center of gravity must be located in the immediate vicinity of the center of the support polygon limited by the points of contact of the chair with the floor and in the two sitting or standing positions of the patient. .

Wheelchair equipment shall be designed to minimize the center of gravity to minimize translational movement when moving from sitting to standing. This verticalization operation can be carried out during the period of movement of the chair, or vice versa, that is to say go from standing to sitting during the period of movement of the chair.

Orders must be easily accessible, or even result from verbal instructions in the case of deep tetraplegic people.

The verticalization must be able to be programmed in time with predetermined sequences

The elements of the chair must be able to adapt to the morphology of the patient. The footprint must remain that of conventional wheelchairs. The chair must be powered from two batteries autonomy and suitable longevity, one taking over the other by electronic or electromechanical means in case of failure or lack of autonomy of one of them.

This is the whole of security, according to which the handicapped must never feel in a dangerous situation in the most established human conditions.

The elements of the chair must be detached quickly for storage in the trunk of an automobile to allow the verticalization of the disabled person outside of home, verticalization is a major position well understood from the outset.

Finally, the cost price criterion must be the unavoidable imperative to allow a broad accessibility to the applicant as well as a financial relief for social services.

For this reason, the possibility of a kit delivery must be possible, thus greatly reducing costs.

All these conditions have never been met jointly, to the knowledge of the applicant.

According to a known type of chair, the verticalization is obtained by manual tilting, which requires a significant effort of the patient, including abdominals. It does not allow the elderly, hemiplegic and quadriplegic disabled verticalization. It does not allow, in addition, an autonomous movement. Little reimbursed by the social services, it remains financially expensive for the users, even useless.

According to some other types of chairs, the verticalization is obtained electrically with however the need for intervention by a third party for the positioning of care under the shins and then strapping the pelvis and the trunk of the user. Thus strapped, no disabled person finds the motivation to verticalize harmoniously as necessary. This type of standing chair remains expensive and is not used as far as possible, since not secure, unsightly or even degrading, having regard to being strapped, harnessed.

The invention proposes a lightweight, ergonomic and secure self-propelled lifting chair for any major handicapped person, including a concept of dismantling and reassembly for its transport so that the user does not lose all the advantages of verticalization during these personal trips in places other than that of his home.

This verticalization, perfectly automated, is done alone, at will, safely, without being strapped, while maintaining a constant attitude in the three possible positions, sitting, standing or relaxing, which does not have the disadvantages mentioned and which can bring a set of benefits never before proposed.

• l'assiette portant les positions assise, debout et relaxante est constamment conservée par le faible déplacement du centre de gravité à l'intérieur du polygone de sustentation limité par les points de contact avec le sol,
• les éléments lourds (batteries) sont rassemblés au centre en position basse,
• le mode de propulsion est autorisé par des roues motrices de faible diamètre (dans le but d'abaisser le centre de gravité), convenables à des déplacements au moins égaux à la vitesse rapide de 5 kilomètres/heure,
• les éléments essentiels réglables peuvent être adaptés à la morphologie des utilisateurs (enfant...),
• toutes les commandes telles que conduite du fauteuil, ordre de verticalisation et de relaxation, sont à disposition immédiate de façon manuelle ou par instructions vocales,
• on trouve déjà dans le commerce le matériel mis en oeuvre et, ce, aux fins d'abaissement des coûts,
• ses dimensions et encombrements sont aux normes en la matière.

According to such an armchair:

• sitting, standing and relaxing positions are constantly conserved by the slight displacement of the center of gravity within the support polygon limited by the points of contact with the ground,
• the heavy elements (batteries) are gathered at the center in the low position,
• the propulsion mode is authorized by driving wheels of small diameter (in order to lower the center of gravity), suitable for displacements at least equal to the fast speed of 5 kilometers / hour,
• the adjustable essential elements can be adapted to the morphology of the users (child ...),
• all commands, such as chair control, verticalization and relaxation, are available manually or by voice instructions,
• the material used is already commercially available and, for the purpose of lowering costs,
• its dimensions and dimensions are up to standards in the field.

• La figure 1 est une vue en coupe de l'ensemble du fauteuil selon l'invention dans une conformation de proportionnalité en position assise.
• La figure 2 est une vue en coupe de l'ensemble du fauteuil selon l'invention dans une conformation de proportionnalité en position debout.
• La figure 3 est une vue en coupe sommaire de l'ensemble du fauteuil selon l'invention dans une conformation de proportionnalité en position de relaxation.
• La figure 4a est une vue de face de l'ensemble du fauteuil.
• La figure 4b est l'opposé de la figure 4a et démontre le sens de rotation de l'ensemble des mécanismes entrant en action en vue de la verticalisation.
• La figure 5 représente l'élaboration mécanique en perspective similaire à la figure 1 dans laquelle l'ensemble des détails est exposé et seront expliqués ultérieurement.
• La figure 6 est une vue en perspective montrant les détails dans une conformation de proportionnalité du châssis ultra léger constitué de tubes associés au centre desquels se situe un point d'ancrage gauche fixe, face à un autre point d'ancrage mobile constituant la base réglable du vérin de verticalisation et se déplaçant parallèlement sur et autour desdits tubes grâce à sa plate-forme ainsi constituée, à l'aide du vérin de relaxation dont la base se situe à proximité de l'extrémité droite des mêmes tubes.
• La figure 7 est une vue de perspective montrant les détails dans une conformation de proportionnalité concernant la fixation à sa base du vérin de verticalisation ainsi que les détails de coulissement dudit vérin acceptant des variations d'axes ne s'opposant pas dans la limite au déplacement du centre de gravité, situé à l'intérieur du polygone de sustentation limité par les points de contacts du fauteuil avec le sol et, ce, dans les trois positions, assise, debout et relaxante.
• Les figures 8, 9, 10, 11, 12, 13, 14 et 15 représentent plusieurs vues en coupe et perspective sommaire dans une conformation de proportionnalité démontrant la possibilité de pliage mécanique dans le but de rangement de l'appareil dans le coffre d'une automobile, ainsi que la possibilité d'une livraison en kit.
• Les figures 16, 17, 18 et 19 représentent plusieurs vues en coupe et perspective sommaire permettant de comprendre la façon de désolidariser les cinq points de jonction entre, d'une part:
  • la base du vérin de verticalisation et le châssis du fauteuil, sur lequel il repose, ainsi que la désolidarisation de la tête du vérin de verticalisation vers le parallélogramme déformable constituant la prise en charge du dossier ainsi que celle de l'assise du fauteuil entre lesquels ils reposent, et, d'autre part:
  • les pieds du parallélogramme déformable déclipsable du châssis porteur de l'ensemble sur lequel ils reposent.

The invention will in any case be understood in its entirety following the text which will describe, by way of example, and in support of the accompanying drawings, an embodiment of a motorized wheelchair for a handicapped person comprising an automatic verticalization device as well as the possibility of perfectly secure movement while offering a relaxation position.

• The figure 1 is a sectional view of the assembly of the chair according to the invention in a conformation of proportionality in sitting position.
• The figure 2 is a sectional view of the entire chair according to the invention in a conformation of proportionality standing.
• The figure 3 is a summary sectional view of the entire chair according to the invention in a conformation of proportionality in the relaxation position.
• The figure 4a is a front view of the entire chair.
• The figure 4b is the opposite of the figure 4a and demonstrates the direction of rotation of all the mechanisms that come into action for verticalization.
• The figure 5 represents mechanical development in perspective similar to the figure 1 in which all the details are exposed and will be explained later.
• The figure 6 is a perspective view showing the details in a conformation conformation of the ultra light frame consisting of associated tubes in the center of which is a fixed left anchor point, facing another movable anchor point constituting the adjustable base of the jack of verticalization and moving parallel on and around said tubes thanks to its platform thus formed, using the relaxation cylinder whose base is located near the right end of the same tubes.
• The figure 7 is a perspective view showing the details in a conformation conformation concerning the fixing at its base of the verticalization ram as well as the sliding details of said jack accepting variations of axes not opposing in the limit to the displacement of the center of gravity, located within the polygon of levitation limited by the points of contact of the chair with the ground and, in all three positions, sitting, standing and relaxing.
• The Figures 8, 9, 10 , 11, 12 , 13, 14 and 15 represent several views in section and summary perspective in a proportionality conformation demonstrating the possibility of mechanical folding for the purpose of storage of the device in the trunk of an automobile, as well as the possibility of delivery kit.
• The Figures 16, 17, 18 and 19 represent several views in section and summary perspective to understand how to separate the five junction points between, on the one hand:
  • the base of the verticalizing cylinder and the chassis of the chair, on which it rests, as well as the separation of the head of the verticalization jack towards the deformable parallelogram constituting the support of the backrest as well as that of the seat of the chair between which they rest, and, on the other hand:
  • the feet of the deformable parallelogram declipable from the carrier frame of the assembly on which they rest.

• La figure 20 est une vue en coupe longitudinale détaillée dans une conformation de proportionnalité partant de la position assise en phase finale de rétraction, démontrant le mécanisme de sécurité anti-chute qui se déploie pendant chaque période de verticalisation.
• La figure 21 est une réplique de la figure 20 où le mécanisme anti-chute est déployé pour assurer le départ sécurisé de la verticalisation.
• La figure 22 est une vue en coupe transversale dans sa conformation de proportionnalité des figures 20 et 21 visées. Elle permet la compréhension mécanique, ergonomique, esthétique et sécurisante du système anti-chute ainsi élaboré, s'insérant entre le tronc et les aisselles, par le dessous, pour la verticalisation de toutes personnes handicapées éliminant toute nécessité de sanglage, de quelque sorte que ce soit.
• La figure 23 représente une coupe sommaire dans sa conformation de proportionnalité en position d'ouverture des prises en charge des tibias de l'utilisateur. Elle démontre à la vue des flèches la possibilité des différents réglages ergonomiques.
• La figure 24 représente la réplique de la figure 23 en position de verrouillage des tibias de l'utilisateur lorsque ce dernier est en position assise dans la première phase de verticalisation.
• La figure 25 est une coupe de dessus faisant état des étapes successives visées selon les coupes 26, 27, 28, 29 démontrant l'axe verrouillé par blocage de sa tête selon la figure 24.
• Les figures 26, 27, 28, 29 sont des coupes dans une conformation de proportionnalité qui démontrent successivement et dans l'ordre visé le moyen de verrouillage de l'axe perçu longitudinalement positionné au centre des figures 23 et 24 de façon à sécuriser la prise en charge des tibias de la personne handicapée. Une vis sans fin peut être plus économique pour obtenir ce résultat.

These figures having the purpose of being the complementary association with those 8 to 15 already referred to, allowing easy understanding of the simplicity of storage and / or transport of the chair in its entirety, as well as delivery kit.

• The figure 20 is a detailed longitudinal sectional view in a proportional conformation starting from the sitting position in the final phase of retraction, demonstrating the anti-fall safety mechanism that unfolds during each period of verticalization.
• The figure 21 is a replica of the figure 20 where the anti-fall mechanism is deployed to ensure the safe departure of the verticalization.
• The figure 22 is a cross-sectional view in its conformation of proportionality of Figures 20 and 21 referred. It allows the mechanical, ergonomic, aesthetic and safe understanding of the anti-fall system thus developed, inserted between the trunk and the armpits, from below, for the verticalization of all disabled persons eliminating the need for straps, of any kind. it would be.
• The figure 23 represents a summary cut in its proportionality conformation in the open position of the user's shin support. It shows at the sight of the arrows the possibility of different ergonomic adjustments.
• The figure 24 represents the replica of the figure 23 in the locking position of the shins of the user when the latter is in a sitting position in the first phase of verticalization.
• The figure 25 is a sectional view showing the successive steps targeted according to the sections 26, 27, 28, 29 showing the locked axis by blocking its head according to the figure 24 .
• The Figures 26, 27, 28, 29 are cuts in a conformation of proportionality that demonstrate successively and in the intended order the means of locking the axle perceived longitudinally positioned in the center of Figures 23 and 24 in order to secure the management of the shins of the handicapped person. A worm can be more economical to achieve this result.

The armchair according to the figure 1 is first of all characteristic in that it can ensure a constant base for the autonomous movement of the major handicapped person who is installed there, and this, in three positions, sitting, standing and relaxing. In addition, it allows a perfectly secure automated support when said person is verticalized.

• elle constitue principalement un double parallélogramme déformable droit et gauche s'articulant selon des points précis, «
  
  »
• elle comprend dans ses montants arrière droits et gauches quatre tubes ronds creux 62 et 63, 64 et 65 transversaux coulissants l'un autour de l'autre offrant la sortie ou l'escamotage des bras anti-chute 35, 36 via le vérin de verticalisation 24 en état de fonctionnement,
• elle porte en sa partie inférieure les supports droits et gauches 37d, 38g de prise en charge de sécurité des tibias de l'utilisateur,
• elle est insérée à partir de ses bases 19d et 19g vers le premier tiers des tubes constituants le châssis porteur de l'ensemble 49 et 50, 45 et 46, figure 6, ceci dans le but de désolidarisation prévue pour le rangement et/ou le transport dont il sera évoqué plus tard,
• étant constituée d'un double parallélogramme déformable droit et gauche, elle autorise en son enceinte la fixation d'un dossier ergonomique 61 ainsi que celle d'une assise ergonomique 60 permettant une prise en charge de l'utilisateur parfaitement sécurisée assurée par le fait que le centre de gravité est situé dans le voisinage immédiat du centre de polygone de sustentation limité par les points de contact du fauteuil avec le sol, et ce, dans les trois positions visées,
• elle porte en sa base extérieure deux sabots de sécurité de verticalisation, un droit et un gauche 27d et 27g associé à un micro commutateur électrique non représenté sur les dessins,

interdisant une verticalisation > 5° par rapport au centre de gravité déjà exposé. Enfin cette structure porteuse en position assise et relaxante trouve sa stabilité précisément sous ses bases inférieures droites et gauches 18d et 18g portées elles-mêmes sur les sommets des deux triangles quelconques escamotables en leurs côtés droit et gauche 30d et 31d, 30g et 31g dont la fonction est exposée ci-après.To do this, the patient is secured to the rigid bearing structure identified 1, 11d, 11g, 13d, 13g, 18d, 18g, 19d, 19g, ensuring ( figure 1 , figure 2 and figure 3 ) various functions:

• it is mainly a double right and left deformable parallelogram articulated according to specific points, "
  
  "
• it comprises in its rear right and left uprights four hollow round tubes 62 and 63, 64 and 65 sliding one around the other offering the exit or the retraction of the anti-fall arms 35, 36 via the verticalization jack 24 in working order,
• it carries in its lower portion the right and left supports 37d, 38g of support for shinbone security of the user,
• it is inserted from its bases 19d and 19g towards the first third of the tubes constituting the undercarriage of the assembly 49 and 50, 45 and 46, figure 6 , this for the purpose of uncoupling planned for storage and / or transport which will be discussed later,
• being constituted by a double right and left deformable parallelogram, it authorizes in its enclosure the fixing of an ergonomic backrest 61 as well as that of an ergonomic seat 60 allowing a taking care of the user perfectly secured ensured by the fact that the center of gravity is located in the immediate vicinity of the center of gravity polygon limited by the points of contact of the chair with the ground, and this, in the three positions concerned,
• it carries at its outer base two verticalization safety shoes, a right and a left 27d and 27g associated with a micro electric switch not shown in the drawings,

prohibiting a verticalization> 5 ° with respect to the center of gravity already exposed. Finally, this carrier structure in a sitting and relaxing position finds its stability precisely under its lower right and left bases 18d and 18g worn themselves on the vertices of any two triangles retractable on their right and left sides 30d and 31d, 30g and 31g whose function is explained below.

The hidden vision of the two left and right triangles 30d, 30g, 31d 31g, 45, 46, 49 and 50 finds its appearance in the exposed configuration through figures 1 , 5 , 8, 9, 10 , 13, 14 and 15 .

These two left and right triangles, in view of the figures above referred to, are shaped and interconnected through the square tubes of junctions 32, 32d and 32g and fulfill two distinct functions.

One being the support at their vertices of the bearing structure referred in the sitting and relaxing position, via the hollow tubular frame of the assembly, the characteristics of which will be detailed below.

The other allows manual retraction of both right and left sides from the hinge points exposed on the Figures 8, 9 and 10 .

The manual dissociation exposed on the Figures 13, 14 and 15 reduces the height and the weight of the hollow frame carrying the assembly for the purpose of storage and / or moving to another home on the condition of unclipping the target bearing structure and that of the verticalizing cylinder 24 in its high and low points as shown by Figures 16, 17, 18 and 19 .

Thanks to these steps above, we have three separate elements consisting of a hollow tubular chassis carrying the assembly, a hollow tubular patient carrying structure, a standard cylinder of industrial trade allowing us to to control cost reduction benefiting both social services and users.

In order to better control costs and for the simplicity of editing by a valid person, many of these three sets can be delivered as a kit and satisfy the largest number of applicants.

The hollow tubular chassis 13 carrying the assembly consists of six hollow square tubes 45, 46, 47, 48, 49 and 50 parallel to each other and connected together by two cross beams 71 and 72 as shown by the figures 6 and 8 . This has the consequence of obtaining a lightness relative to the electric autonomy for the displacement, a mechanical resistance associated to the measurement of the need, finally an elasticity of deformation related to the geometrical tolerance of certain grounds without threatening the security of the handicapped person .

The hollow tubular chassis carrying the assembly exposed on the Figures 6 and 7 four-wheel drive including two rear-wheel drive coupled to their electric gearmotor 23d and 23 g. It carries the axial sliding plate 17 allowing ergonomic attachment to the base of the cylinder 24 verticalization and the mechanism of the relaxation cylinder 26 on its inner tubes 47 and 48.

It carries the sides of the two right and left triangles on the respective hollow square tubes 45, 46, 49 and 50, whose base of the target sides is welded to hinges. It carries a fixed anchor point 51 providing the mechanical connection between the axial sliding plate and the relaxation cylinder 26. It carries the ergonomically adjustable footrest. Finally, it carries in its center right and left front, behind the footrest, two batteries, one taking over from the other from lack of autonomy under which is housed a not shown attitude detector.

The actual verticalization can now be exposed as a whole essentially in support of the figure 1 .

At first, the patient is seated normally according to this position, the "stretchers" equipped with their anti-dropping mechanism 35-36 and 33-34 are lowered and recessed inside the backrest 61, the verticalizing jack 24 is resting.

The shin supports are in the open position to receive the legs of the disabled person whose feet rest on the footrests 26d and 26g adjustable more or less 5 ° tilt longitudinally to position the body of the user in a perfect verticality without distortion of the skeleton during the period and at the end of the course of the verticalization, and this, during all the duration of verticalization.

According to the use and, before verticalization, the patient can be seated by action on the manual control 29 which sends analog or digital electrical information gear motor 21 and 22 for the purpose of moving. This same information can be provided by a voice command indicating the direction to take in the case of a major disability.

In a second step, the patient himself causes the actual verticalization operation acting on the appropriate control of the housing 29 or through the voice command.

• la poussée du vérin de verticalisation 24. Cette dernière peut être programmée avec des séquences prédéterminées selon des considérations médicales précises, telles des temps d'arrêt et/ou avec une poussée lente ou plus rapide du vérin 24 de manière à s'adapter au rétablissement du système circulatoire de la personne handicapée, phénomène orthostatique. Pendant cette opération de verticalisation, l'assiette est constamment assurée,
• la sortie des «brancards» 35-36 en corrélation, associé aux câbles de rétention 85 et 86, avec leur extrémité commune anti-chute 33-34 jusqu'à la butée transversale 74 du double parallélogramme provoquant de façon corollaire sa déformation vers le haut lors de l'action du vérin 24,
• la rétraction puis, en fin de parcours, le verrouillage des mécanismes ergonomiques 38d et 38g de prise en charge des tibias, grâce aux câbles de tension 87 et 88.

Together, then:

• the thrust of the verticalization cylinder 24. The latter can be programmed with predetermined sequences according to specific medical considerations, such as downtime and / or with a slow or faster thrust of the jack 24 so as to adapt to the recovery of the circulatory system of the disabled person, orthostatic phenomenon. During this verticalization operation, the plate is constantly ensured,
• the output of the "stretchers" 35-36 in correlation, associated with the retention cables 85 and 86, with their common anti-fall end 33-34 up to the transverse stop 74 of the double parallelogram causing corollary its deformation upwards during the action of the jack 24,
• the retraction and then, at the end of the course, the locking of the ergonomic mechanisms 38d and 38g of support of the shins, thanks to the tension cables 87 and 88.

The coordination of all these movements is such that these mechanical actions are carried out accurately, smoothly, smoothly, silently and according to the morphology of users in relation to the multiple settings offered by the system.

During this safety step, the disabled person is seated to physically accept the ultimate step of verticalization.

As a result, once the "stretchers" 35-36 abut under the transverse bar 74 and the anti-fall ends 33-34 deployed in front of the patient's armpits, the actuator 24 in action will cause the simultaneous deformation of the two right deformable parallelograms. and left constituting the supporting structure.

Thus, the patient will be raised from the immediate care located at the level of the gluteal muscles via the seat 60, his feet naturally taking place on the footrests 26 and 27 without sliding possible due to the secure management of the shins, during the first automation cycle. The perfect correlation of this step allows the verticalization of the disabled person's body without being strapped.

The end of the verticalization cycle is detected by lack of electric current via reversing micro-switches sold in the industrial trade at the end of the cylinder stroke. At the instant T where the user's positioning is in the immediate vicinity equivalent to a value less than or equal to 5 ° with respect to the center of gravity as it is exposed on the figure 2 , for exemple.

The de-verticalization position is in the opposite direction so that the patient is in the initial sitting position, the "stretchers" 35-36 and their common anti-fall end 33-34 are fully retracted into position seated inside the backrest 61 correlatively with the opening of the mechanisms of management of the shins, which allows a necessary comfort for the user seated again.

Finally, to return to verticalization, this targeted mode of operation can also be accomplished under the same conditions of safety when the patient moves forward, at a slow speed of movement.

According to another type of operation, after a period of verticalization considered, the carrier structure consists of a double right and left deformable parallelogram provides the patient the opportunity to relax.

The invention therefore proposes, in a second step, an adaptation of the chair as previously described using a relaxation device.

If we now turn to figures 3 , 6 and 7 we can understand how such adaptation can be done in practice. It must first be considered that, before the translation, the disabled person is in a sitting position and that only electronic sensors or micro-contacts formatted in said translation allow the acceptance of the orders sent to the relaxation reduction motorcycle 26.

According to the practice, as during verticalization, the patient in the seated position directs the manual control 29 to the relaxation function and / or sends an electrical command by voice command to the target geared motor whose base is fixed to the rear ends of the tubes 47 and 48 of the tubular frame carrying the assembly, which has the effect of implementing a slow backward sliding and Regular bases 18d and 18g on their carrier 30d and 30g.

This sliding acts on the entire bearing structure intended for the purpose of producing the inclination of the backrest 61 favorable to relaxation as demonstrated by the figure 3 .

It is caused, on the one hand, by the implementation of the gear motor 26 actuating a threaded rod 27 with a diameter at least equal to 10 m / m rotating in the counterclockwise direction to ensure said deformation towards this rear direction and, on the other hand, by the longitudinal displacement before the plate 17.

The mechanical connection of the plate 17 is provided around the tubes of the carrier frame of the assembly 47 and 48.

The gear motor 26 actuated allows the rotation of the threaded rod as indicated above. Said threaded rod originates from the gear motor 26 to complete its support in the center of its support 51.

Two pitch nuts and diameters equal to the threaded shank 27 enclose the protruding casings 18 of the plate 17 and allow the target movement, which has the effect of causing a linear thrust from the axis where the verticalization cylinder originates which, therefore, is used as a lever via its casing 90 in the form of T pivoting on its axis around its own base X.

The sitting position is again in the opposite direction so that the patient is in said position. The patient can adapt his degree of inclination at will.

The present description has been made only to give a good understanding of the bases of the invention essentially providing a major disabled person with the means to stand up autonomously and at will without being strapped and without the aid of a third person from the moment the disabled person is seated.

• un châssis porteur (1, 11d, 11g, 13d, 13g, 18, 18d, 18g, 19d, 19g) constituant deux parallélogrammes déformables droit et gauche portant en leur enceinte un dossier (61), outre son assise (60) recevant sur ses montants arrières supérieurs droit et gauche deux patères (22, 23) réglables de haut en bas et inversement en correspondance avec la morphologie de l'utilisateur, celles-ci supportant l'ensemble des mécanismes anti-chutes sous aisselles droite et gauche, de façon à en favoriser la sortie et/ou l'escamotage,
• deux mécanismes ergonomiques droit et gauche de prise en charge anti-chutes sous aisselles (35, 36) avec leur câble de rétention gainés (85, 86) prenant naissance via leur base de fixation (80) jusque sous le socle mobile des prises en charge anti-chute (33, 34),
• deux câbles de traction gainés (87, 88) prenant naissance via leur tête de fixation (101, 102) traversant leur base (80) pour y coulisser verrouillant ainsi les prises en charge des tibias (38, 39) via les axes de translation (96, 97). Lorsque ces derniers sont actionnés par le vérin (24),
• deux têtes ergonomiques pivotantes anti-chutes (33, 34) virant pour un quart de tour avant et/ou arrière sur leur axe mâle/femelle respectifs (66, 67, 70, 71) jusqu'aux butées de blocage (72, 73) en rapport avec le socle latéral élaboré à la base desdites têtes ergonomiques anti-chutes,
• deux ressorts de traction (21, 22) fonctionnant en opposition autour des axes (66, 67, 70, 71) face aux câbles gainés respectifs de rétention (85, 86), les effets desdits câbles étant établis selon les flèches (a-b-c-d-e-f-g-i),
• deux patères à réglage ergonomique gauche (22) et droite (23),
• deux tubes creux longitudinaux au tube (1), l'un (63) de diamètre inférieur prenant ses fixations à ses extrémités sur les patères (22, 23), l'autre (62) de diamètre supérieur tournant pour un quart de tour autour du tube (63) emportant avec lui pendant la même rotation la totalité des éléments des mécanismes anti-chutes sous aisselles (35, 36) vers l'avant et/ou vers l'arrière selon les actions du vérin (24),
• deux points d'ancrages (78, 79) autour du tube transversal (62) permettant le réglage morphologique transversal des systèmes de prise en charge anti-chutes sous aisselles (35, 36),
• deux tubes creux l'un (65) d'un diamètre inférieur coulissant librement en ses extrémités dans le logement tubulaire élaboré à l'intérieur des masses métalliques constituant les prises en charge (35, 36), l'autre (64) d'un diamètre supérieur tournant pour un quart de tour autour du tube transversal (65) :
  • Les longueurs des tubes (64, 65) permettent le réglage ergonomique latéral par coulissement dans les mêmes proportions visées par les tubes (62, 63) via le serrage des ancrages (78, 79).

It is quite obvious that any modifications and / or adaptations that would be made to the invention in his mind would remain within his scope: which is defined in the following claims, said self-propelled wheelchair for a disabled person with paraplegic and / or quadriplegic major having a device automatic verticalization device comprising:

• a support frame (1, 11d, 11g, 13d, 13g, 18, 18d, 18g, 19d, 19g) constituting two deformable parallelograms right and left carrying in their enclosure a backrest (61), in addition to its seat (60) receiving on its upright upper right and left two hooks (22, 23) adjustable from top to bottom and inversely in correspondence with the morphology of the user, these supporting all the anti-falls mechanisms under right and left armpits, so as to promote the exit and / or the retraction,
• two right-handed and left-handed ergonomic underarm management mechanisms (35, 36) with their sheathed retention cable (85, 86) originating from their attachment base (80) to the mobile pedestal anti-fall (33, 34),
• two sheathed traction cables (87, 88) originating via their fastening head (101, 102) passing through their base (80) to slide therein, thereby locking the shin supports (38, 39) via the translation axes ( 96, 97). When these are actuated by the jack (24),
• two anti-fall pivoting ergonomic heads (33, 34) turning for a quarter of a turn forward and / or rearward on their respective male / female axes (66, 67, 70, 71) to the locking stops (72, 73) in connection with the lateral base developed at the base of said anti-fall ergonomic heads,
• two traction springs (21, 22) operating in opposition around the axes (66, 67, 70, 71) facing the respective sheathed retention cables (85, 86), the effects of said cables being established according to the arrows (abcdefgi),
• two hooks with left (22) and right (23) ergonomic adjustment,
• two longitudinal hollow tubes to the tube (1), one (63) of smaller diameter taking its fastenings at its ends on the pegs (22, 23), the other (62) of greater diameter turning for a quarter turn around of the tube (63) carrying with it during the same rotation all of the elements of the underarm anti-fall mechanisms (35, 36) forward and / or rearward depending on the actions of the jack (24),
• two anchoring points (78, 79) around the transverse tube (62) allowing the transverse morphological adjustment of the underarm falls management systems (35, 36),
• two hollow tubes one (65) of a smaller diameter sliding freely at its ends in the tubular housing made inside the metal masses providing the supports (35, 36), the other (64) of a larger diameter rotating for a quarter of a turn around the transverse tube (65):
  • The lengths of the tubes (64, 65) allow the lateral ergonomic adjustment by sliding in the same proportions targeted by the tubes (62, 63) by tightening the anchors (78, 79).

• deux dispositifs de sécurité avec verrouillage (38d, 38g) placés sur l'avant des montants inférieurs (19d, 19g) interdisant le fléchissement des tibias et, à fortiori, celui du squelette, assuré par le verrouillage desdites prises en charge (38d, 39g) via les câbles de traction gainés (87, 88) fixés aux poulies de rotation des axes de translation (96, 97),
• deux sabots de sécurité de verticalisation (27d, 27g) avec leurs micro-contacts non représentés,
• deux batteries, l'une conçue pour l'autonomie générale, l'autre de secours fonctionnant via un relais à manque de tension et assurant une autonomie suppléante.

The thrust made by the head of the lifting jack (24) located in the center of the tube (64) allows the retraction or the exit of the whole of the anti-falls mechanisms under armpits (arrows a, b, c, d, e , f, g, i, j, k),

• two safety devices with locking (38d, 38g) placed on the front of the lower uprights (19d, 19g) preventing sagging of the shins and, a fortiori, that of the skeleton, ensured by the locking of said support (38d, 39g ) via the sheathed traction cables (87, 88) attached to the rotational pulleys of the translation axes (96, 97),
• two verticalization safety shoes (27d, 27g) with their microphones not shown,
• two batteries, one designed for general autonomy, the other backup operating via a relay with no voltage and providing backup autonomy.

• un châssis porteur de l'ensemble constitué des tubes creux (45, 46, 47, 48, 49, 50),
• quatre roues dont deux libres à l'avant (110, 113) et deux motrices (111, 112) propulsées par les motoréducteurs.

Said batteries being placed in the center of the carrier frame on the tubes (48, 49) for one and (46, 47) for the other in the near vicinity of the center of gravity.

• a chassis carrying the assembly consisting of hollow tubes (45, 46, 47, 48, 49, 50),
• four wheels, two free at the front (110, 113) and two engines (111, 112) propelled by geared motors.

The arrangement of these various elements being such that, on the order of the handicapped user, the latter can, on the one hand, proceed to its verticalization, which leads together, the output of support under-falls armpit (33, 34) and (35, 36) at the end of stroke coordinated with the secure locking mechanism of the shins (38d, 38g). These coordinations acting during the period of the first cycle in sitting position thus avoiding any form of strapping to the patient who, during the continuity of the cycle towards the verticalization receives a thrust of the seat (60) in the direction of the gluteal muscles, until the end of said cycle, the ergonomic adjustments (33, 34) and (35, 36) adjusted do not allow any discomfort during the entire period of verticalization, therefore, the patient is verticalized in symmetrical support on its footrest (26d, 26g) allowing him, on the other hand, to produce the movement of said chair by action on the drive wheels via a push button or a computer or voice command.

The armpit undercut mechanism (35, 36) has inside its front end flanks an articulated finger (33, 34) designed for ergonomic management delicately sliding between the trunk and the arms under the armpits of the upper arm. user ending his secure race on the front of the shoulders supporting said shoulders, thus perfectly encompassed, within the mechanical assemblies (35, 36) (33, 34) to the backrest (61) so that the body the user is linked and secured to the undercarriage without the need for strapping and safety. This is made possible by two primary axial rotation tubes, one male (65), the other female (64) associated with each other by the mass constituted by the lever arms (35, 36) towards two secondary axial rotation tubes, one male (63), the other female (62). The arrangement of these elements being such that the thrust of the verticalization jack (24), located in the center of the primary axis, allows the rotation of the secondary axis carrying the lever arms (35, 36) to the stop (74) allowing the deformation of the right and left parallelograms jointly causing rotation on its male / female axis (66, 70) and (70, 71) of the removable safety pin (33, 34) until the moment of the secure management located in front of the patient's shoulders. The rotation of the male / female pins (66, 70) and (70, 71) is permitted via the retentive-wrapped cables (85, 86) originating on the splice bar (80) during the pushing of the verticalizing ram (24). ). All these moving mechanisms being supported by the hooks (22, 23), according to the observations of the arrows (a, c, i) describing the forces thus exerted on the return and pulling springs (21, 22), arrows (e, f) during said thrust (j, k). In correlation, the gripping base (33, 34) comes into abutment opposite the safety catch (72, 73), the arrows b and g indicating the direction of the return of said elements in their initial accommodation.

The secure management of the shins includes a translational axis (96, 97) mu during a rotation of a quarter of a turn on itself by step thanks to the sheathed traction cable (87, 88) anchored on the pulley (9d , 9g) passing through the guide (80) originating on the stops (101, 102) allowing the corollary propulsion of said translation axis upwards until secure locking. This being made possible via said translation axis (96, 97) itself rotating in steps of 1/15 ^th of revolution via the conical cylinders positioned head to tail, one (104, 108) secured to the translation axis (96, 97) the other (110, 111) secured to its base (118, 119) and then to the conically shaped primary upper bearing (105, 106) for the same angle of rotation and finally to the upper secondary bearing (106, 107) of the same conical shape by means of the transverse pin (98, 99) fixed at the head of said translation axis to end its secure course. Its successive operations are established together in a sitting position during the verticalization mode.

The unlocking is established in the opposite direction when returning to the sitting position when the sheathed traction cables (87, 88) have no more grip on the pulleys (9d, 9g).

A standard worm screw of the industrial trade placed instead of the translation axis (96, 97) can be considered, in order to simplify production moves, or even simplify this set.

• la butée fixe (51), solidaire des tubes (47, 48), permet la rotation libre dans les deux sens des aiguilles d'une montre de la tige filetée (52) comme le ferait un vérin actionné par le moto-réducteur (25), ce qui a pour effet le coulissement à droite et/ou à gauche (flèche d) du plateau mobile (17) sur lesdits tubes (47, 48) produisant via les ancrages (18, 19, 20) fixés sur ledit plateau mobile un effet levier puissant et régulier partant de la base d'ancrage (16) passant par les axes de rotation (16b) puis vers le basculement limité du manchon (26) entourant le vérin de verticalisation (26), ce qui a pour action le déplacement du plateau mobile (17) dans le sens inverse à la tête du vérin de verticalisation afin de produire un déplacement programmé vers la relaxation ou l'assise à la convenance de l'utilisateur grâce à la déformation du parallélogramme sus visé.

The entire mechanism proposes a relaxation position obtained by the deformation towards the rear and / or the front of the right and left parallelogram constituting the carrier frame.

• the fixed stop (51), integral with the tubes (47, 48), allows free rotation in both clockwise directions of the threaded rod (52) as would a cylinder actuated by the geared motor (25). ), which has the effect of sliding on the right and / or left (arrow d) of the movable plate (17) on said tubes (47, 48) producing via the anchors (18, 19, 20) fixed on said moving plate a powerful and regular leverage effect starting from the anchoring base (16) passing through the axes of rotation (16b) and then towards the limited tilting of the sleeve ( 26 ) surrounding the verticalization ram (26), which acts as moving the movable plate (17) in the opposite direction to the head of the verticalizing cylinder to produce a programmed displacement towards the relaxation or the seat at the convenience of the user through the deformation of the above-mentioned parallelogram.

The arrangement of these elements being such that by action of the geared motor (25), the right and left parallelogram receives a push towards a deformation aimed at the relaxation of the disabled person and / or comfort positioning.

• deux triangles quelconques droit et gauche désolidarisés, constitués par les bases gauches (49, 50), puis droites (45, 46) avec leur côté gauche (30g, 31g) puis droit (30d, 31 d), pliables vers le bas via leur charnière respective et au sommet desquels, lorsque le triangle est formé, repose les montants (18d, 18g) constituant l'assise du châssis porteur.

The chair can be folded for easy storage:

• any two right and left triangles disunited, constituted by the left bases (49, 50), then straight (45, 46) with their left side (30g, 31g) then right (30d, 31d), foldable downwards through their respective hinges and at the top of which, when the triangle is formed, rests the uprights (18d, 18g) constituting the seat of the carrier frame.

The separation of the arbitrary triangles is obtained by dissociation of the fast nut type (305) around its threaded head axis (140), which has the effect of separating the left and right sides of their junction housings (32, 32b, 32g) in view of the respective positioning of the side (30g) on its base (50) as well as on the side (31g) on its base (49) and on the side (31d) on its base (46) as well as on the side (31d). 30d) on its base (45), said sides being bonded to said bases by said hinges above riveted on the correspondences of one vis-à-vis the other.

Then the separation of the carrier frame to the carrier frame of the assembly obtained by the same effects of the type fast nut (305) on the uprights (19d, 19g) enclosed in their base support (45, 50), the same effect produced around the axes (16b, 16g) allows, ultimately, a total release of the carrier frame to the carrier frame of the assembly.

The arrangement of these elements being such that four fast nuts type (305) allow the easy and fast process of separation and storage of the standalone. The fourth nut type (305) being located at the base of the cylinder (16) to the sliding plate (17).

The chair has the possibility to be mounted as a kit.

The chassis carrier of the set is separable into three parts upon delivery. Such tubes (49, 50), secured to the sides (30g, 31g), folded vis-à-vis can be delivered together with their geared motor and their respective front and rear wheels.

Similarly, the tubes (47, 48) can be delivered jointly, mechanically associated with the sliding plate (17) provided with its "accessories" (18, 25, 51, 52).

Such tubes (45, 46), integral with the sides (30d, 31d), folded vis-à-vis, can be delivered together with their geared motor and their respective wheels front and rear, all being assembled at home by the joining tubes (71, 72) using a quick nut type (305).

Like the verticalizing ram (24), detached from its basic axes (16, 16b) with the underarm support mechanism associated with the set.

The packaging of these various elements for easy assembly and a lower production costs for the benefit of the disabled person.

The control box (29) is placed at the disposal of the patient on the armrest, or in a conformation suitable for voice operation according to current computer means.

Claims (6)

Motorized wheelchair for a disabled paraplegic motor and / or quadriplegic major comprising an automatic verticalization device characterized in that it comprises: a carrier frame (1, 11d, 11g, 13d, 13g, 18, 18d, 18g, 19d, 19g) constituting two parallel deformable right and left parallelograms carrying in their enclosure a backrest (61), besides its seat (60) receiving on its rear upper right and left amounts: two vertical safety stops (27d, 27g), - two right and left ergonomic mechanisms of underarm fall arrest (33, 34, 35 and 36) with their retention and traction cable (85, 86) and (87, 88), a carrier frame of the assembly consisting of hollow tubes (45, 46, 47, 48, 49, 50), - two adjustable footrest (26d and 26g), - four wheels, two free at the front (110, 113) and motor (111, 112) powered by the geared motor (23d and 23g), - Two batteries for the general power supply including a backup The arrangement of these various elements being such that, on the order of the disabled user, it can proceed to its verticalization, which leads to the output of the outlets in anti-falls underarm (33, 34) and (35, 36) at the end of the stroke coordinated with the secure locking mechanism of the shins (38d, 38g) and the deformation of the right and left parallelograms animated by the effect of the cylinder (24) A self-propelled chair for a disabled person with an automatic standing device according to claim 1, characterized in that the underarm support mechanism (35, 36) has at its outer ends: - two removable anti-fall fingers (33, 34) rotating about their respective axes (66, 67), two sheathed traction cables (85, 86), - two inner blocking bases (72, 73), - two female male primary thrust tubes (64, 65) receiving the cylinder head (24) two male secondary tubes (62, 63) The arrangement of these elements being such that the thrust of the cylinder (24) correlatively causes the output of underarm support, the removable fingers fall-arrest thanks to the traction cable. This output is made precise thanks to the ergonomic adjustment (78, 79) and the adjustment of the hooks (22, 23) between the base axis (16, 16b) of the verticalizing cylinder (24). Motorized wheelchair for major handicapped person according to claim 1, characterized in that the secure grips of the shins comprise a translational axis (96, 97) associated with a perpendicular blocking axis (98, 99) mu by stage to its locking top thanks to the action of the jack (24) in relation to the sheathed retention cable (87, 88).
The arrangement of these elements being such that the rise of the axis (96, 97) leads into its locking housing (102, 103), the axis (98, 99) thereby securing the closure of the supported (38d, 38g), the reverse movement resulting in the unlocking of the supported during the readjustment of the sitting position. Motorized wheelchair for major disabled person according to claim 1 characterized in that it comprises a relaxation device driven by the thrust or retraction of the cylinder (25) to the sliding plate (17) around the tilt sleeve ( 26 ).
The arrangement of these elements being such that, by order, the disabled user can proceed to his relaxation, which causes the thrust to the rear of all the elements of the carrier frame (1, 11d, 11g, 13d, 13g, 18, 18d, 18g, 19d, 19g, 60, 61) constituting the secure seat of the disabled user. The opposite movement results in a comfort adjustment or the return to a sitting position. Motorized wheelchair for major handicapped person according to claim 1 characterized in that it comprises a rapid storage device obtained by separating the carrier frame of the assembly (45, 46, 47, 48, 49, 50) from the carrier frame (1, 11d, 11g, 13d, 13g, 18d, 18g, 19d, 19g) made possible by unscrewing the standard type nuts (305) as follows: In a first step, separation of the base (19g) from the tubes (49 and 55) and separation of the base (19d) from the tubes (45 and 50), followed by the base (16b and 16), this having as a consequence the separation of said carrier frame and carrier chassis from the assembly, In a second step, the latter can be lowered in height by unscrewing the quick-type nut (305) aimed at the height of the tubes (30g, 31g, and 30d, 31d) via the connecting tube (30). , which allows the tubes (49, 50, 45, 46) to horizontally receive their respective tubes (30g, 31g, 30d, 31d) via the hinge points at their base. Motorized wheelchair for major handicapped person according to claim 1 characterized in that it comprises a carrier frame of the assembly consisting of six hollow tubes (45, 46, 47, 48, 49, 50) connected to each other bearing: - two freewheels at the front (110, 113), - two drive wheels at the rear (111, 118), - a movable anchor plate (17) fixed around the hollow tubes (47, 48) allowing forward and / or rear sliding in order to adjust the relaxation position and / or verticalization, a relaxation cylinder (25) with its adjustment guides (18, 19), a fastening base (16b) connecting the verticalization cylinder (24), - two batteries including a backup, - two adjustable ergonomic footrests (26d, 26g) The arrangement of these elements being such that the plate (17) ensures the position adapted for the verticalization and / or relaxation of the disabled user via the control (29)

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