WO1993017649A1 - Armchair convertible into a stretcher bed - Google Patents

Armchair convertible into a stretcher bed Download PDF

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Publication number
WO1993017649A1
WO1993017649A1 PCT/FR1993/000179 FR9300179W WO9317649A1 WO 1993017649 A1 WO1993017649 A1 WO 1993017649A1 FR 9300179 W FR9300179 W FR 9300179W WO 9317649 A1 WO9317649 A1 WO 9317649A1
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WO
WIPO (PCT)
Prior art keywords
chair
armchair
frames
seat
sides
Prior art date
Application number
PCT/FR1993/000179
Other languages
French (fr)
Inventor
Noël BESSIERE
Claude Franceschi
Original Assignee
Bessiere Noel
Claude Franceschi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bessiere Noel, Claude Franceschi filed Critical Bessiere Noel
Priority to AU36366/93A priority Critical patent/AU3636693A/en
Publication of WO1993017649A1 publication Critical patent/WO1993017649A1/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
    • A61G5/006—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs convertible to stretchers or beds
    • 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
    • A61G5/14—Standing-up or sitting-down aids

Definitions

  • the present invention relates to an armchair which can be transformed into a stretcher bed, particularly intended for the handling, transport, sleeping and putting in a wheelchair of incapacitated or able-bodied people who must be examined or operated on.
  • This chair is also intended for semi-disabled people who can be helped by an assistant to sit, stand or lie down.
  • a relaxation and relaxation seat with variable inclination comprising a set of two deformable rectangular frames, connected by horizontal crosspieces on which is stretched.
  • a canvas which are laterally suspended from two lateral supports resting on the ground; the suspension of the two frames forming the frame of this chair is taken, like a swing, at a horizontal transverse articulation axis, which is arranged very above the large upper side of each of the two frames .
  • Such an arrangement of the articulation and suspension axis does not allow the seat to be tilted more than a few degrees from the horizontal.
  • the present invention aims to remedy these drawbacks by proposing an armchair which can be transformed into a stretcher bed comprising a backrest, a seat and a legrest bracing a set of two rectangular lateral frames, articulated at their vertices and integral in their deformation, the sides of which anterior and posterior are respectively extended upwards and downwards to constitute the lateral frames of the backrest and the legrest, the lower sides of which constitute the lateral frames of the seat, and the upper sides of which are each articulated around a horizontal articulation axis, normally perpendicular to the vertical planes passing through said frames, and integral with a base resting on the ground, this chair being characterized in that the articulation axis on the upper side of a frame is arranged either below or above the said side, at a distance from the latter not exceeding 10
  • the upper sides of the two frames form the armrests of the chair.
  • the axis of articulation of the two armrests will normally be a common horizontal axis; in this regard, the two side frames of the chair will then have the same dimensions.
  • the horizontal articulation axis to which the chair is articulated or suspended, passes slightly below the plane defined by the armrests, and it is normally located along the latter. , at respective distances of one third and two thirds of the length separating the articulation points of said armrests on the rear and front sides of the two frames.
  • This configuration of the chair according to the invention considerably reduces the effort required to deform the chair or to tilt it forwards or backwards, to the point where it becomes very easy for the practitioner to raise the seat. vertically, or practically vertically, without the help of any auxiliary energy source usually required on armchairs of the same kind.
  • the practitioner is therefore able to very simply take charge of a person standing, or sitting upright, on his examination chair; when the caregiver presses his buttocks against the seat of the chair, the general balancing of the chair, and in particular the position of the horizontal articulation axis along the armrests, contributes to causing the immediate deformation of the two rectangular frames of the chair, which allows the person to be seated effortlessly, neither on his part, nor on the part of the practitioner.
  • the chair according to the invention can therefore be placed in any intermediate position, which can optionally be maintained, either manually, or by locking means provided at various points on the chair.
  • the horizontal articulation axis of the armrests can be locked in its rotation, normally free, so that the chair can be, for example, locked in a set of intermediate positions for which the seat is more or less inclined compared to the horizontal.
  • auxiliary energy source for example electric
  • auxiliary means for example electric
  • these means can be dimensioned according to much less severe criteria than on armchairs convertible into beds of the same kind.
  • FIG. 1 is a schematic side view of said chair, making it possible to better understand its principle of use,
  • FIGs 2 to 6 are side perspective views of the chair shown in Figure 1, in various positions, respectively verticalization, standing seated support, seated stretcher, elongated stretcher and, finally, radiological examination elongated inclined
  • - Figure 7 is a perspective view of the chair placed in a position suitable for gynecological examination, with the leg rest tilted against the base.
  • the chair shown schematically on the Figure 1 comprises a set of two articulated rectangular frames, of which only the left frame is visible in the figure, which are connected by transverse spacers, perpendicular to the plane of the drawing.
  • These two frames of the same dimension, each consist of an anterior side 1, a posterior side 2, a lower side 3 and an upper side 4 forming an armrest, and are integral in their deformations.
  • the joints of sides 1 to 4 between them are normally left free but at least one of them could be equipped with a locking means or a brake.
  • the front 1 and rear 2 sides are extended, respectively upwards and downwards, to constitute, with the transverse spacers, the frames supporting the backrest 5 and the leg rest 6 of the chair, more particularly visible on the Figures 2 to 7.
  • the lower sides 3 of the frames form, with the transverse spacers, the frame of the seat 7 of the chair. It will be observed that, in the case of an armchair / bed for medical use as described here by way of example, it is important that the backrest 5, the legrest 6 and the seat 7 are made in the form of removable cushions of a flexible material, such as high density foam, covered with a synthetic fabric that can be sterilized.
  • the two frames are suspended, or articulated, from a horizontal articulation axis 8, extending perpendicular to said frames, this axis 8 being integral with a base 9 resting on the ground.
  • This base 9, normally provided with rollers 10, can have any shape, but preferably comprises at least one horizontal cross member 11 at its lower part so as to form a stop disposed at the rear of the leg rest 6.
  • the horizontal cross member 11 is used in particular to limit the deformation of the frames, and therefore of the chair, so that the sitting position, for which the backrest 5 is most raised, is comfortable for the patient.
  • the hinge pin 8 is normally mounted free in rotation, so that when the leg rest 6 abuts against the cross member 11 of the base 9 or, if necessary, against the ground, said leg rest 6 can slide against said cross member 11 causing the tilting of the seat 1 towards the front, which enables the chair to be placed in a seated upright position, as shown in perspective in FIG. 3, and diagrammatically in phantom in FIG. 1
  • the latter By causing additional deformation of the side frames of the chair, the latter can be put in the bed position so that, once tilted forward by the same process as that described above, it finds itself in its so-called position verticalization, as shown in perspective in Figure 2.
  • the horizontal articulation axis 8 of the chair can be temporarily blocked, either directly or indirectly by auxiliary means blocking the position of the seat 7 in a horizontal, vertical or inclined position, intermediate between these two extreme positions.
  • At least one of the axes of articulation of the sides 1 to 4 of the deformable frames forming the frame of the chair can be temporarily blocked. In this way, it is " possible to maintain the seat 7 of the chair at any inclination. In this way, by combining the deformations of the frames and the inclination of the seat 7, the temporary blocking of the chair makes it possible to obtain all the positions represented in FIGS. 4 to 6, namely a seated stretcher position (fig. 4), an elongated stretcher position (fig. 5 and in phantom in Figure 1) and an elongated, inclined position forward, allowing a radiological examination (fig. 6).
  • the horizontal articulation axis 8 will be disposed at a distance from the posterior sides 2 of the frames approximately equal to a third of the length of the upper sides 4 forming armrests. It has been demonstrated that this proportion is perfectly suited to an automatic balancing of the chair towards a stable sitting position, when the patient is supported in the standing sitting position; in this case, it should be noted that the seat 7 must be free to rotate.
  • the horizontal articulation axis 8 passes just below the plane of the armrests, at a distance of a few centimeters, for example 15 millimeters, from the axis of the armrests, with a maximum about 10 centimeters; in this way, the chair is in a more unstable equilibrium position than if the horizontal articulation axis 8 were, on the contrary, located above said plane.
  • This arrangement facilitates the tilting of the seat 7 of the chair from one position to the other.
  • the seat 7 can be constituted by a wardrobe seat, superimposable, if necessary, on the bowl of a C.
  • the height of the chair is adjustable by means of a conventional device with jacks, for example electrically controlled, or by means of a purely mechanical lifting system of the type of a jack or its analog.
  • the possibility of adjusting the seat height 7 explains in particular why it is generally necessary to have a cross member 11 at the front of the base 9, the leg rest 6 being able, in fact, in the highest position of the chair, not no longer come into abutment against the ground when it is fully folded the back (extreme sitting position).
  • the passage from one position to the other can be obtained in various ways, depending on whether the deformations of the chair and / or the inclination of the armrests are blocked or not.
  • the lifting of the chair from an extended stretcher position (fig. 5) to a verticalization position (fig. 2) can be carried out directly with the side frames (1,2,3,4) locked in their maximum extension position (bed position), in which case only the rotation of the armrests around the hinge pin 8 is left free.
  • the chair can be placed in a position derived from its seated or lying stretcher position so that the practitioner can carry out a gynecological examination of the patient installed on the armchair.
  • the leg rest 6 is separated from the rest of the side frames forming the frame of the chair, which allows it to tilt, by simple gravity, against the base 9.
  • the backrest 5 can be indifferently in position, straight, elongated or inclined
  • the release of the legrest 6 towards the rear gives the practitioner complete freedom to position himself facing the length of the chair.

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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)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Special Chairs (AREA)

Abstract

Armchair convertible into a stretcher bed comprising a back rest (5), a seat (7) and a leg rest (7) fitted to an assembly of two lateral rectangular frames, articulated at the top and integral in the collapsed state. The front (1) and rear (2) sides of said frames extend upwards and downwards to form the lateral reinforcements of the back rest (5) and the leg rest (6), while the lower sides (3) constitute the lateral reinforcements of the seat (7) with the upper sides each being articulated about a horizontal axis (8) which is normally at right angles to the vertical planes traversing said reinforcements, and integral with an underframe (9) resting on the floor. The arm chair is characterized in that the articulation axis (8) of the upper side (4) of a frame is disposed either under or above said upper side (4), at a distance from the latter not exceeding 10 centimeters. The armchair is especially for handling, transporting, carrying and seating handicapped persons or patients having to be examined or operated.

Description

FAUTEUIL TRANSFORMABLE EN LIT BRANCARD ARMCHAIR CONVERTIBLE INTO A BED
La présente invention concerne un fauteuil transformable en lit brancard particulièrement destiné à la manipulation, au transport, au couchage et à la mise au fauteuil de personnes impotentes ou valides devant être examinées ou opérées. Ce fauteuil est également destiné aux personnes semi-valides pouvant être aidées d'un assistant pour s'asseoir, se relever ou se coucher.The present invention relates to an armchair which can be transformed into a stretcher bed, particularly intended for the handling, transport, sleeping and putting in a wheelchair of incapacitated or able-bodied people who must be examined or operated on. This chair is also intended for semi-disabled people who can be helped by an assistant to sit, stand or lie down.
On ne connaît pas, à ce jour, de fauteuil ou de lit brancard permettant de prendre en charge une personne impotente ou valide dans une position debout, pour ensuite la basculer en position assise puis, le cas échéant , de la position assise en position allongée, ceci afin de procéder à un examen médical, chirurgical ou radiologique. Par exemple, dans le brevet US-A-2 676 643, il est décrit un fauteuil roulant dont l'ossature est formée de deux parallélogrammes déformables verticaux, liés dans leur déformation, et dont le pietement est relié à chaque accoudoir par deux axes de rotation fixes dans un plan horizontal ; un tel agencement interdit d'incliner le siège par rapport à l'horizontale et ne permet donc pas d'amener le siège dans une position verticale, dite de "verticalisation", ou dans une position quasi-verticale, dite "assise debout".We do not know, to date, armchair or stretcher bed to support a helpless or able-bodied person in a standing position, to then tilt it into a sitting position then, if necessary, from the sitting position in a lying position in order to carry out a medical, surgical or radiological examination. For example, in patent US-A-2 676 643, a wheelchair is described, the frame of which is formed by two vertical deformable parallelograms, linked in their deformation, and the base of which is connected to each armrest by two axes of fixed rotation in a horizontal plane; such an arrangement prohibits tilting the seat relative to the horizontal and therefore does not allow the seat to be brought into a vertical position, called "verticalization", or into a quasi-vertical position, called "standing".
Dans un autre domaine que le domaine médical, on connaît, par le brevet FR-A-652 063, un siège de relaxation et de détente à inclinaison variable comportant un ensemble de deux cadres rectangulaires déformables, reliés par des traverses horizontales sur lesquelles est tendue une toile, et qui sont suspendus latéralement à deux supports latéraux reposant sur le sol ; la suspension des deux cadres formant l'armature de ce fauteuil est prise, à la manière d'une balancelle, au niveau d'un axe d'articulation horizontal transversal, qui est disposé très au dessus du grand côté supérieur de chacun des deux cadres. Une telle disposition de l'axe d'articulation et de suspension ne permet pas d'incliner le siège de plus de quelques degrés par rapport à l'horizontale. De ce fait, un tel agencement, appliqué à un fauteuil lit à usage médical du type décrit dans le brevet US-A-2 676 643 déjà mentionné, ne permettrait pas d'amener le fauteuil en position de verticalisation ou en position assise debout. La présente invention vise à remédier à ces inconvénients en proposant un fauteuil transformable en lit brancard comportant un dossier, une assise et un repose-jambes entretoisant un ensemble de deux cadres latéraux rectangulaires, articulés à leurs sommets et solidaires dans leur déformation, dont les côtés antérieurs et postérieurs sont respectivement prolongés vers le haut et vers le bas pour constituer les armatures latérales du dossier et du repose-jambes, dont les côtés inférieurs constituent les armatures latérales de l'assise, et dont les côtés supérieurs sont chacun articulés autour d'un axe d'articulation horizontal, normalement perpendiculaire aux plans verticaux passant par lesdits cadres, et solidaire d'un pietement reposant sur le sol, ce fauteuil étant caractérisé en ce que l'axe d'articulation du côté supérieur d'un cadre est disposé soit au-dessous, soit au-dessus dudit côté, à une distance de ce dernier n'excédant pas 10 centimètres.In another field than the medical field, we know, from patent FR-A-652,063, a relaxation and relaxation seat with variable inclination comprising a set of two deformable rectangular frames, connected by horizontal crosspieces on which is stretched. a canvas, which are laterally suspended from two lateral supports resting on the ground; the suspension of the two frames forming the frame of this chair is taken, like a swing, at a horizontal transverse articulation axis, which is arranged very above the large upper side of each of the two frames . Such an arrangement of the articulation and suspension axis does not allow the seat to be tilted more than a few degrees from the horizontal. Therefore, such an arrangement, applied to a bed chair for medical use of the type described in US-A-2 676 643 already mentioned, would not allow the chair to be brought into the vertical position or in a standing position. The present invention aims to remedy these drawbacks by proposing an armchair which can be transformed into a stretcher bed comprising a backrest, a seat and a legrest bracing a set of two rectangular lateral frames, articulated at their vertices and integral in their deformation, the sides of which anterior and posterior are respectively extended upwards and downwards to constitute the lateral frames of the backrest and the legrest, the lower sides of which constitute the lateral frames of the seat, and the upper sides of which are each articulated around a horizontal articulation axis, normally perpendicular to the vertical planes passing through said frames, and integral with a base resting on the ground, this chair being characterized in that the articulation axis on the upper side of a frame is arranged either below or above the said side, at a distance from the latter not exceeding 10 centimeters.
Préférentiellement, les côtés supérieurs des deux cadres forment les accoudoirs du fauteuil.Preferably, the upper sides of the two frames form the armrests of the chair.
En outre, étant donné que les accoudoirs d'un fauteuil sont généralement situés à une même hauteur, l'axe d'articulation des deux accoudoirs sera normalement un axe horizontal commun ; à cet égard, les deux cadres latéraux du fauteuil auront alors les mêmes dimensions.In addition, since the armrests of an armchair are generally situated at the same height, the axis of articulation of the two armrests will normally be a common horizontal axis; in this regard, the two side frames of the chair will then have the same dimensions.
Dans une variante d'exécution préférentielle de l'invention, l'axe d'articulation horizontal, auquel le fauteuil est articulé ou suspendu, passe légèrement au- dessous du plan défini par les accoudoirs, et il est normalement situé le long de ces derniers, à des distances respectives d'un tiers et de deux tiers de la longueur séparant les points d'articulation desdits accoudoirs sur les côtés postérieurs et antérieurs des deux cadres. Cette configuration du fauteuil conforme à l'invention diminue considérablement l'effort à fournir pour déformer le fauteuil ou pour basculer ce dernier vers l'avant ou vers l'arrière, à tel point qu'il devient très facile au praticien de relever le siège à la verticale, ou pratiquement à la verticale, ceci sans l'aide d'aucune source d'énergie auxilliaire habituellement nécessaire sur les fauteuils du même genre. La praticien est donc à même de prendre en charge très simplement une personne en station debout, ou en station assise debout, sur son fauteuil d'examen ; au moment où la personne prise en charge appuie son fessier contre l'assise du fauteuil, l'équilibrage général du fauteuil, et notamment la position de l'axe d'articulation horizontal le long des accoudoirs, contribue à provoquer la déformation immédiate des deux cadres rectangulaires du fauteuil, ce qui permet, d'asseoir la personne sans effort, ni de sa part, ni de la part du praticien.In a preferred embodiment variant of the invention, the horizontal articulation axis, to which the chair is articulated or suspended, passes slightly below the plane defined by the armrests, and it is normally located along the latter. , at respective distances of one third and two thirds of the length separating the articulation points of said armrests on the rear and front sides of the two frames. This configuration of the chair according to the invention considerably reduces the effort required to deform the chair or to tilt it forwards or backwards, to the point where it becomes very easy for the practitioner to raise the seat. vertically, or practically vertically, without the help of any auxiliary energy source usually required on armchairs of the same kind. The practitioner is therefore able to very simply take charge of a person standing, or sitting upright, on his examination chair; when the caregiver presses his buttocks against the seat of the chair, the general balancing of the chair, and in particular the position of the horizontal articulation axis along the armrests, contributes to causing the immediate deformation of the two rectangular frames of the chair, which allows the person to be seated effortlessly, neither on his part, nor on the part of the practitioner.
Cet avantage remarquable procuré par l'invention provient essentiellement de ce que, contrairement aux fauteuils antérieurement connus, les déformations de lit en fauteuil, et d'une position d'assise horizontale en assise inclinée ou verticale, sont totalement indépendantes l'une de l'autre. A cet égard, le fauteuil selon l'invention peut donc être placé dans n'importe quelle position intermédiaire, que l'on peut éventuellement maintenir, soit manuellement, soit par des moyens de blocage prévus en divers points du fauteuil.This remarkable advantage provided by the invention comes essentially from the fact that, unlike previously known armchairs, deformations of the bed in an armchair, and from a horizontal sitting position to an inclined or vertical seat, are completely independent of one another. 'other. In this regard, the chair according to the invention can therefore be placed in any intermediate position, which can optionally be maintained, either manually, or by locking means provided at various points on the chair.
En particulier, alors que les déformations des cadres sont normalement libres, il est prévu de pouvoir bloquer l'un au moins des points d'articulation de ces deux cadres de manière à ce que, dans l'hypothèse d'une prise en charge en station debout, le praticien puisse basculer directement la personne en décubitus dorsal (position allongée), et inversement, simplement en jouant, vers l'avant ou vers l'arrière, sur le dossier du fauteuil. Ce dernier passe alors en une seule opération de sa position dite de verticalisation à sa position dite de brancardage allongé.In particular, while the deformations of the frames are normally free, provision is made to be able to block at least one of the points of articulation of these two frames so that, in the event of assumption of responsibility standing position, the practitioner can tilt the person directly in the supine position (reclining position), and vice versa, simply by playing, forwards or backwards, on the back of the chair. The latter then passes in a single operation from its so-called verticalization position to its so-called position elongated stretcher.
De même, l'axe d'articulation horizontal des accoudoirs peut être bloqué dans sa rotation, normalement libre, de manière à ce que le fauteuil puisse être, par exemple, bloqué dans un ensemble de positions intermédiaires pour lesquelles l'assise est plus ou moins inclinée par rapport à l'horizontale.Similarly, the horizontal articulation axis of the armrests can be locked in its rotation, normally free, so that the chair can be, for example, locked in a set of intermediate positions for which the seat is more or less inclined compared to the horizontal.
Dans tous les transferts d'une position à l'autre, il est important de remarquer que le fauteuil n'emploie aucune source d'énergie auxilliaire, par exemple électrique, même s'il serait bien entendu envigeable d'assister certains mouvements pour des raisons tenant plus à la sécurité et au contrôle des déformations du fauteuil qu'à un réel besoin en énergie d'actionnement. C'est d'ailleurs pourquoi, lorsque des moyens auxilliaires, par exemple électriques, sont installés sur le fauteuil pour contrôler ses déformations et son inclinaison générale, ces moyens peuvent être dimensionnés selon des critères nettement moins sévères que sur des fauteuils transformables en lits du même genre.In all transfers from one position to another, it is important to note that the wheelchair does not use any auxiliary energy source, for example electric, although it would of course be possible to assist certain movements for reasons related more to the safety and control of chair deformations than to a real need for actuation energy. This is also why, when auxiliary means, for example electric, are installed on the chair to control its deformations and its general inclination, these means can be dimensioned according to much less severe criteria than on armchairs convertible into beds of the same kind.
D'autres caractéristiques et avantages, de la présente invention ressortiront mieux de la description qui va suivre d'un mode d'exécution d'un fauteuil transformable en lit brancard, donné à titre d'exemple non limitatif en référence aux dessins annexés sur lesquels :Other characteristics and advantages of the present invention will emerge more clearly from the following description of an embodiment of an armchair convertible into a stretcher bed, given by way of nonlimiting example with reference to the appended drawings in which :
- la figure 1 est une vue schématique de côté dudit fauteuil, permettant de mieux comprendre son principe d'utilisation,FIG. 1 is a schematic side view of said chair, making it possible to better understand its principle of use,
- les figures 2 à 6 sont des vues en perspective latérale du fauteuil représenté sur la figure 1, dans diverses positions, respectivement de verticalisation, de prise en charge assise debout, de brancardage assis, de brancardage allongé et, enfin, d'examen radiologique allongé incliné, - la figure 7 est une vue en perspective du fauteuil placé en une position propre à un examen gynécologique, avec le repose-jambes basculé contre le pietement.- Figures 2 to 6 are side perspective views of the chair shown in Figure 1, in various positions, respectively verticalization, standing seated support, seated stretcher, elongated stretcher and, finally, radiological examination elongated inclined, - Figure 7 is a perspective view of the chair placed in a position suitable for gynecological examination, with the leg rest tilted against the base.
Le fauteuil représenté schématiquement sur la figure 1 comporte un ensemble de deux cadres rectangulaires articulés, dont seul le cadre gauche est visible sur la figure, qui sont reliés par des entretoises transversales, perpendiculaires au plan du dessin. Ces deux cadres, de même dimension, sont constitués chacun d'un côté antérieur 1, d'un côté postérieur 2, d'un côté inférieur 3 et d'un côté supérieur 4 formant accoudoir, et sont solidaires dans leurs déformations. Les articulations des côtés 1 à 4 entre eux sont normalement laissés libres mais l'une d'entre elles au moins pourraient être équipée d'un moyen de blocage ou d'un frein. Par ailleurs, les côtés antérieurs 1 et postérieurs 2 sont prolongés, respectivement vers le haut et vers le bas, pour constituer, avec les entretoises transversales, les armatures supportant le dossier 5 et le repose-jambes 6 du fauteuil, plus particulièrement visibles sur les figures 2 à 7. De même, les côtés inférieurs 3 des cadres forment, avec les entretoises transversales, l'armature de l'assise 7 du fauteuil. On observera que, dans le cas d'un fauteuil/lit à usage médical tel que décrit ici à titre d'exemple, il est important que le dossier 5, le repose- jambes 6 et l'assise 7 soient réalisés sous la forme de coussins amovibles d'une matière souple, telle que de la mousse à haute densité, recouverte d'un tissu synthétique pouvant être stérilisé.The chair shown schematically on the Figure 1 comprises a set of two articulated rectangular frames, of which only the left frame is visible in the figure, which are connected by transverse spacers, perpendicular to the plane of the drawing. These two frames, of the same dimension, each consist of an anterior side 1, a posterior side 2, a lower side 3 and an upper side 4 forming an armrest, and are integral in their deformations. The joints of sides 1 to 4 between them are normally left free but at least one of them could be equipped with a locking means or a brake. Furthermore, the front 1 and rear 2 sides are extended, respectively upwards and downwards, to constitute, with the transverse spacers, the frames supporting the backrest 5 and the leg rest 6 of the chair, more particularly visible on the Figures 2 to 7. Similarly, the lower sides 3 of the frames form, with the transverse spacers, the frame of the seat 7 of the chair. It will be observed that, in the case of an armchair / bed for medical use as described here by way of example, it is important that the backrest 5, the legrest 6 and the seat 7 are made in the form of removable cushions of a flexible material, such as high density foam, covered with a synthetic fabric that can be sterilized.
Selon l'invention, les deux cadres sont suspendus, ou articulés, à un axe d'articulation horizontal 8, s'étendant perpendiculairement auxdits cadres, cet axe 8 étant solidaire d'un pietement 9 reposant sur le sol. Ce pietement 9, normalement muni de roulettes 10, peut présenter une forme quelconque, mais comporte préférentiellement au moins une traverse horizontale 11 à sa partie basse de sorte à former une butée disposée à l'arrière du repose-jambes 6. La traverse horizontale 11 sert notamment à limiter la déformation des cadres, et donc du fauteuil, de sorte à ce que la position assise, pour laquelle le dossier 5 est le plus relevé, soit confortable pour le patient. L'axe d'articulation 8 est normalement monté libre en rotation, de telle manière que lorsque le repose- jambes 6 vient en butée contre la traverse 11 du pietement 9 ou, le cas échéant, contre le sol, ledit repose-jambes 6 puisse glisser contre ladite traverse 11 en provoquant le basculement vers l'avant de l'assise 1 , ce qui permet de mettre le fauteuil en position assise debout, telle que représentée en perspective sur la figure 3, et schématiquement en traits mixtes sur la figure 1. En provoquant une déformation supplémentaire des cadres latéraux du fauteuil, ce dernier peut être mis en position lit de manière à ce que, une fois basculé vers l'avant par le même processus que celui décrit précédemment, il se retrouve dans sa position dite de verticalisation, telle que représentée en perspective sur la figure 2.According to the invention, the two frames are suspended, or articulated, from a horizontal articulation axis 8, extending perpendicular to said frames, this axis 8 being integral with a base 9 resting on the ground. This base 9, normally provided with rollers 10, can have any shape, but preferably comprises at least one horizontal cross member 11 at its lower part so as to form a stop disposed at the rear of the leg rest 6. The horizontal cross member 11 is used in particular to limit the deformation of the frames, and therefore of the chair, so that the sitting position, for which the backrest 5 is most raised, is comfortable for the patient. The hinge pin 8 is normally mounted free in rotation, so that when the leg rest 6 abuts against the cross member 11 of the base 9 or, if necessary, against the ground, said leg rest 6 can slide against said cross member 11 causing the tilting of the seat 1 towards the front, which enables the chair to be placed in a seated upright position, as shown in perspective in FIG. 3, and diagrammatically in phantom in FIG. 1 By causing additional deformation of the side frames of the chair, the latter can be put in the bed position so that, once tilted forward by the same process as that described above, it finds itself in its so-called position verticalization, as shown in perspective in Figure 2.
Suivant une caractéristique particulière de l'invention, l'axe d'articulation horizontale 8 du fauteuil peut être temporairement bloqué, soit directement, soit indirectement par des moyens auxilliaires bloquant la position de l'assise 7 dans une position horizontale, verticale ou inclinée, intermédiaire entre ces deux positions extrêmes.According to a particular characteristic of the invention, the horizontal articulation axis 8 of the chair can be temporarily blocked, either directly or indirectly by auxiliary means blocking the position of the seat 7 in a horizontal, vertical or inclined position, intermediate between these two extreme positions.
De même, au moins l'un des axes d'articulation des côtés 1 à 4 des cadres déformables formant l'ossature du fauteuil peut être temporairement bloqué. De cette manière, il " est possible de maintenir l'assise 7 du fauteuil suivant une inclinaison quelconque. De cette façon, en combinant les déformations des cadres et l'inclinaison de l'assise 7, le blocage temporaire du fauteuil permet d'obtenir l'ensemble des positions représentées sur les figures 4 à 6, à savoir une position de brancardage assis (fig. 4), une position de brancardage allongé (fig. 5 et en traits mixtes sur la figure 1) et une position allongée, inclinée vers l'avant, permettant de procéder à un examen radiologique (fig. 6).Likewise, at least one of the axes of articulation of the sides 1 to 4 of the deformable frames forming the frame of the chair can be temporarily blocked. In this way, it is " possible to maintain the seat 7 of the chair at any inclination. In this way, by combining the deformations of the frames and the inclination of the seat 7, the temporary blocking of the chair makes it possible to obtain all the positions represented in FIGS. 4 to 6, namely a seated stretcher position (fig. 4), an elongated stretcher position (fig. 5 and in phantom in Figure 1) and an elongated, inclined position forward, allowing a radiological examination (fig. 6).
On décrira maintenant, en se reportant à nouveau à la figure 1, certaines caractéristiques préférentielles du fauteuil selon l'invention. En particulier, dans le mode de réalisation normal du fauteuil, destiné à la prise en charge de patients dont le poids varie entre 50 et 100 kilogrammes, l'axe d'articulation horizontal 8 sera disposé à une distance des côtés postérieurs 2 des cadres environ égale au tiers de la longueur des côtés supérieurs 4 formant accoudoirs. On a pu mettre en évidence que cette proportion convenait parfaitement à un équilibrage automatique du fauteuil vers une position assise stable, lorsque le patient était pris en charge dans la position assise debout ; dans ce cas, il est à remarquer que l'assise 7 doit être libre en rotation.We will now describe, referring again to FIG. 1, certain preferential characteristics of the armchair according to the invention. In particular, in the normal embodiment of the chair, intended for the care of patients whose weight varies between 50 and 100 kilograms, the horizontal articulation axis 8 will be disposed at a distance from the posterior sides 2 of the frames approximately equal to a third of the length of the upper sides 4 forming armrests. It has been demonstrated that this proportion is perfectly suited to an automatic balancing of the chair towards a stable sitting position, when the patient is supported in the standing sitting position; in this case, it should be noted that the seat 7 must be free to rotate.
Suivant une autre caractéristique préférentielle de l'invention, l'axe d'articulation horizontal 8 passe juste au-dessous du plan des accoudoirs, à une distance de quelques centimètres, par exemple 15 millimètres, de l'axe des accoudoirs, avec un maximum de 10 centimètres environ ; de cette manière, le fauteuil se trouve dans une position d'équilibre plus instable que si l'axe d'articulation horizontal 8 était, au contraire, situé au- dessus dudit plan. Cette disposition facilite le basculement de l'assise 7 du fauteuil d'une position vers 1'autre.According to another preferred characteristic of the invention, the horizontal articulation axis 8 passes just below the plane of the armrests, at a distance of a few centimeters, for example 15 millimeters, from the axis of the armrests, with a maximum about 10 centimeters; in this way, the chair is in a more unstable equilibrium position than if the horizontal articulation axis 8 were, on the contrary, located above said plane. This arrangement facilitates the tilting of the seat 7 of the chair from one position to the other.
Dans une caractéristique complémentaire de l'invention, non représentée sur les figures, l'assise 7 peut être constituée par un siège garde-robe, superposable, le cas échéant, à la cuvette d'un C.In an additional characteristic of the invention, not shown in the figures, the seat 7 can be constituted by a wardrobe seat, superimposable, if necessary, on the bowl of a C.
Suivant encore une autre caractéristique de l'invention, la hauteur du fauteuil est réglable par l'intermédiaire d'un classique dispositif à vérins, par exemple commandé électriquement, ou par l'intermédiaire d'un système de levage purement mécanique du type d'un cric ou son analogue. La possibilité de régler la hauteur d'assise 7 explique notamment pourquoi il est généralement nécessaire de disposer une traverse 11 à l'avant du pietement 9, le repose-jambes 6 pouvant, en effet, dans la position la plus haute du fauteuil, ne plus venir en butée contre le sol lorsqu'il est complètement rabattu vers l'arrière (position assise extrême).According to yet another characteristic of the invention, the height of the chair is adjustable by means of a conventional device with jacks, for example electrically controlled, or by means of a purely mechanical lifting system of the type of a jack or its analog. The possibility of adjusting the seat height 7 explains in particular why it is generally necessary to have a cross member 11 at the front of the base 9, the leg rest 6 being able, in fact, in the highest position of the chair, not no longer come into abutment against the ground when it is fully folded the back (extreme sitting position).
On comprendra aisément que le passage d'une position à l'autre peut s'obtenir de diverses manières, selon que les déformations du fauteuil et/ou l'inclinaison des ac- coudoirs sont bloquées ou non. En particulier, le relevage du fauteuil d'une position de brancardage allongé (fig. 5) vers une position de verticalisation (fig. 2) peut s'effectuer directement avec les cadres latéraux (1,2,3,4) bloqués dans leur position d'extension maximale (position lit) , auquel cas seule la rotation des accoudoirs autour de l'axe d'articulation 8 est laissée libre.It will be readily understood that the passage from one position to the other can be obtained in various ways, depending on whether the deformations of the chair and / or the inclination of the armrests are blocked or not. In particular, the lifting of the chair from an extended stretcher position (fig. 5) to a verticalization position (fig. 2) can be carried out directly with the side frames (1,2,3,4) locked in their maximum extension position (bed position), in which case only the rotation of the armrests around the hinge pin 8 is left free.
Dans une dernière caractéristique de l'invention, apparente sur la figure 7, le fauteuil peut être mis dans une position dérivée de sa position de brancardage assis ou allongé de sorte à ce que le praticien puisse pratiquer un examen gynécologique de la patiente installée sur le fauteuil. A cet effet, le repose-jambes 6 est désolidarisé du reste des cadres latéraux formant l'ossature du fauteuil, ce qui permet de la basculer, par simple gravité, contre le pietement 9. Dans cette position, où le dossier 5 peut indifféremment être en position, droite, allongée ou inclinée, le dégagement du repose-jambes 6 vers l'arrière laisse toute liberté au praticien de se placer face à la longueur du fauteuil. In a last characteristic of the invention, apparent in FIG. 7, the chair can be placed in a position derived from its seated or lying stretcher position so that the practitioner can carry out a gynecological examination of the patient installed on the armchair. To this end, the leg rest 6 is separated from the rest of the side frames forming the frame of the chair, which allows it to tilt, by simple gravity, against the base 9. In this position, where the backrest 5 can be indifferently in position, straight, elongated or inclined, the release of the legrest 6 towards the rear gives the practitioner complete freedom to position himself facing the length of the chair.

Claims

- S -- S -
REVENDICATIONS
1 - Fauteuil transformable en lit brancard comportant un dossier (5), une assise (7) et un repose- jambes (6) entretoisant un ensemble de deux cadres latéraux rectangulaires, articulés à leurs sommets et solidaires dans leur déformation, dont les côtés antérieurs (1) et postérieurs (2) sont respectivement prolongés vers le haut et vers le bas pour constituer les armatures latérales du dossier (5) et du repose- jambes (6), dont les côtés inférieurs (3) constituent les armatures latérales de l'assise (7), et dont les côtés supérieurs (4) sont chacun articulés autour d'un axe d'articulation horizontal (8), normalement perpendiculaire aux plans verticaux passant par lesdits cadres, et solidaire d'un pietement (9) reposant sur le sol, ce fauteuil étant caractérisé en ce que l'axe d'articulation (8) du côté supérieur (4) d'un cadre est disposé soit au-dessous, soit au-dessus dudit côté supérieur (4), à une distance de ce dernier n'excédant pas 10 centimètres.1 - Armchair convertible into a stretcher bed comprising a backrest (5), a seat (7) and a legrest (6) bracing a set of two rectangular lateral frames, articulated at their apices and integral in their deformation, including the front sides (1) and rear (2) are respectively extended upwards and downwards to constitute the lateral frames of the backrest (5) and of the legrest (6), the lower sides (3) of which constitute the lateral frames of the 'seat (7), and whose upper sides (4) are each articulated about a horizontal axis of articulation (8), normally perpendicular to the vertical planes passing through said frames, and integral with a base (9) resting on the ground, this chair being characterized in that the hinge pin (8) on the upper side (4) of a frame is arranged either below or above said upper side (4), at a distance from the latter not exceeding 10 centimeters.
2 - Fauteuil selon la revendication 1, caractérisé en ce que les côtés supérieurs (4) des deux cadres forment les accoudoirs du fauteuil. 3 - Fauteuil selon l'une quelconque des revendications précédentes, caractérisé en ce que l'axe d'articulation horizontal (8), auquel le fauteuil est articulé ou suspendu, passe légèrement au-dessous du plan défini par les accoudoirs, et il est normalement situé le long de ces derniers, à des distances respectives d'un tiers et de deux tiers de la longueur séparant les points d'articulation desdits accoudoirs sur les côtés postérieurs (2) et antérieurs (1) des deux cadres.2 - Armchair according to claim 1, characterized in that the upper sides (4) of the two frames form the armrests of the armchair. 3 - Armchair according to any one of the preceding claims, characterized in that the horizontal articulation axis (8), to which the armchair is articulated or suspended, passes slightly below the plane defined by the armrests, and it is normally located along the latter, at respective distances of one third and two thirds of the length separating the points of articulation of said armrests on the rear (2) and front (1) sides of the two frames.
4 - Fauteuil selon l'une quelconque des revendications précédentes, caractérisé en ce que l'axe d'articulation horizontale (8) du fauteuil peut être temporairement bloqué, soit directement, soit indirectement par des moyens auxilliaires bloquant la position de l'assise (7) dans une position horizontale, verticale ou inclinée, intermédiaire entre ces deux positions extrêmes.4 - Chair according to any one of the preceding claims, characterized in that the horizontal articulation axis (8) of the chair can be temporarily blocked, either directly or indirectly by auxiliary means blocking the position of the seat ( 7) in a horizontal position, vertical or inclined, intermediate between these two extreme positions.
5 - Fauteuil selon l'une quelconque des revendications précédentes, caractérisé en ce que l'une au moins des articulations des côtés (1, 2, 3, 4) entre eux, normalement libres en rotation, est pourvue d'un moyen de blocage ou d'un frein.5 - Chair according to any one of the preceding claims, characterized in that at least one of the articulations of the sides (1, 2, 3, 4) between them, normally free to rotate, is provided with a locking means or a brake.
6 - Fauteuil selon l'une quelconque des revendications précédentes, caractérisé en ce que la pietement (9) comporte au moins une traverse horizontale (11) à sa partie basse, de sorte à former une • butée limitant les mouvements du repose-jambes (6) vers l'arrière.6 - Armchair according to any one of the preceding claims, characterized in that the base (9) comprises at least one horizontal crosspiece (11) at its lower part, so as to form a stop limiting the movements of the legrest ( 6) backwards.
7 - Fauteuil selon l'une quelconque des revendications précédentes, caractérisé en ce que la hauteur du fauteuil est réglable par l'intermédiaire d'un classique dispositif à vérins, par exemple commandé électriquement.7 - Chair according to any one of the preceding claims, characterized in that the height of the chair is adjustable by means of a conventional device with jacks, for example electrically controlled.
8 - Fauteuil selon l'une quelconque des revendications précédentes, caractérisé en ce que le dossier (5), le repose-jambes (6) et l'assise (7) sont réalisés sous la forme de coussins amovibles d'une matière souple, telle que de la mousse à haute densité, recouverte d'un tissu synthétique pouvant être stérilisé. 8 - Armchair according to any one of the preceding claims, characterized in that the backrest (5), the legrest (6) and the seat (7) are made in the form of removable cushions of a flexible material, such as high density foam, covered with a synthetic fabric that can be sterilized.
PCT/FR1993/000179 1992-03-02 1993-02-24 Armchair convertible into a stretcher bed WO1993017649A1 (en)

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EP92400535A EP0558858A1 (en) 1992-03-02 1992-03-02 Armchair transformable into a bed or a stretcher

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WO1994022410A1 (en) * 1993-04-06 1994-10-13 Hazel Menehira A chair
US6862762B1 (en) * 2002-01-11 2005-03-08 Wlf, L.L.C. Patient support apparatus
WO2019119014A1 (en) * 2017-12-18 2019-06-27 Tobruk Engineering Pty Ltd Mobile patient support chair
CN112206122A (en) * 2020-11-07 2021-01-12 邱桃英 Gynecological examination platform
CN112220641A (en) * 2020-11-07 2021-01-15 邱桃英 Examination bed for obstetrics and gynecology department
US20220386776A1 (en) * 2018-11-14 2022-12-08 Ohad Paz Tilting/lifting chair

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FR2712802B1 (en) * 1993-11-25 1996-01-26 Pellevoisin Roland Motorized lift chair.
AU690359B2 (en) * 1994-12-21 1998-04-23 Dhs Pty Ltd Trundle seat stretcher
GB2317106B (en) * 1996-09-12 2000-02-16 Michael Alexander Support unit
WO1998052509A1 (en) * 1997-05-24 1998-11-26 Karl Wingett Smith An improved mechanism for elevating seats
GB9710659D0 (en) * 1997-05-24 1997-07-16 Smith Karl W "Stand-easy 2"-An improved mechanism for elevating seats
DE19926511A1 (en) * 1999-06-10 2000-12-14 Herbert Brustmann Mobile chair
GB2383263B (en) * 2001-11-17 2005-11-16 Medi Plinth Healthcare Group L Bed
DE10161624C1 (en) * 2001-12-14 2002-11-28 Herbert Brustmann Wheelchair for transporting sick people comprises a handle fixed to the back rest and having a rotating part whose rotational movement is transferred by a Bowden cable to an adjusting device for a seat part
EP1895883B1 (en) 2005-05-17 2011-08-10 Ohad Paz Bathing system
US9072643B2 (en) * 2011-11-11 2015-07-07 Starship Enterprises, Llc Device, system and method for transferring a person from a horizontal to a sitting position or vice versa
CN107080623A (en) * 2017-06-10 2017-08-22 刘开南 A kind of mobile walker is helped just self-cleaning helps stand stretcher chair with flexible inner and outer pipes formation
CN112294551B (en) * 2020-10-30 2023-03-28 海纳斯(山东)技术有限公司 Medical rehabilitation wheelchair

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WO1994022410A1 (en) * 1993-04-06 1994-10-13 Hazel Menehira A chair
AU691176B2 (en) * 1993-04-06 1998-05-14 Lyfta Chair Co. Limited A chair
US6862762B1 (en) * 2002-01-11 2005-03-08 Wlf, L.L.C. Patient support apparatus
WO2019119014A1 (en) * 2017-12-18 2019-06-27 Tobruk Engineering Pty Ltd Mobile patient support chair
US11497665B2 (en) 2017-12-18 2022-11-15 Tobruk Engineering Pty Ltd Mobile patient support chair
AU2018390976B2 (en) * 2017-12-18 2023-10-19 Tobruk Engineering Pty Ltd Mobile patient support chair
US20220386776A1 (en) * 2018-11-14 2022-12-08 Ohad Paz Tilting/lifting chair
CN112206122A (en) * 2020-11-07 2021-01-12 邱桃英 Gynecological examination platform
CN112220641A (en) * 2020-11-07 2021-01-15 邱桃英 Examination bed for obstetrics and gynecology department

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