EP1372433B1 - Bed equipped with a back elevator - Google Patents

Bed equipped with a back elevator Download PDF

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Publication number
EP1372433B1
EP1372433B1 EP02720083A EP02720083A EP1372433B1 EP 1372433 B1 EP1372433 B1 EP 1372433B1 EP 02720083 A EP02720083 A EP 02720083A EP 02720083 A EP02720083 A EP 02720083A EP 1372433 B1 EP1372433 B1 EP 1372433B1
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EP
European Patent Office
Prior art keywords
bed
frame
shaft
plane
back lifter
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP02720083A
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German (de)
French (fr)
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EP1372433A1 (en
Inventor
Christian Gippert
Guénhael Le Boeuf
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Hill Rom SAS
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Hill Rom SAS
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Publication date
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Publication of EP1372433A1 publication Critical patent/EP1372433A1/en
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Publication of EP1372433B1 publication Critical patent/EP1372433B1/en
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    • 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
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/002—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame
    • A61G7/015—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame divided into different adjustable sections, e.g. for Gatch position
    • 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
    • A61G2203/00—General characteristics of devices
    • A61G2203/70—General characteristics of devices with special adaptations, e.g. for safety or comfort
    • A61G2203/74—General characteristics of devices with special adaptations, e.g. for safety or comfort for anti-shear when adjusting furniture

Definitions

  • the present invention relates to a bed, for example a hospital bed, fitted with a backrest capable of pivoting between a horizontal position and a series of inclined positions, so as to bring the patient in this bed, one lying state to a raised state, or even substantially seated.
  • This backrest supports the patient's back and head and corresponds about 2/5 of the bed length.
  • This backrest is also provided with two connecting rods.
  • the first connecting rod is articulated on the frame, (near the headboard) and in the middle of the backrest.
  • the second connecting rod is articulated at the base of the backrest and on the chassis, substantially in line with the user's pelvis. The tilt of the backrest in direction of the vertical causes a simultaneous displacement thereof towards the head bed.
  • This examination table has legs, an articulated frame and a rigid mattress having a bust section, a seat section and a section feet.
  • the articulated frame supporting the rigid mattress can occupy a first position in which the three sections of the mattress are horizontal and one second position in which the bust and foot sections of this mattress are substantially vertical, so that this examination table turns into a chair.
  • the object of the present invention is to develop a bed such as above, of a simple structure and operation and which makes it possible to reduce considerably the pressure exerted by the backrest, on the back and the abdomen of the patient using this bed, when this backrest is straightened.
  • a bed especially a hospital bed, comprising a frame surmounted by a sleeping surface, this frame having a fixed part substantially horizontal and a tilting part capable of pivoting, under the action means for adjusting its inclination around a first horizontal axis, perpendicular to the longitudinal direction of said bed, said sleeping plane comprising at least one back-forming plane, guided in translation relative to said tilting part of the chassis, so that it can slide in the direction of the headboard or in the opposite direction, respectively when lifting or the lowering of said tilting part of the chassis.
  • said tilting part of the frame includes at least one support beam supporting the underside of said backrest, one end of this spar being integral in rotation with said first axis, and in that said bed comprises at least one connecting rod, one of the ends of which said "connection end” is pivotally mounted around a second axis, mounted parallel to said first axis, between the head of the bed and this first axis, one of said first and second axes being capable of moving substantially horizontally and perpendicular to the longitudinal direction of the bed and the other of the two axes being fixedly mounted on said fixed part of the chassis, the other end of said link, called “displacement end” being pivotally mounted about a third axis parallel to the first two axes and provided on said support beam at a point located between the two opposite ends of it, the displacement end of said link having a series of gear teeth extending radially, over at least part of its periphery, in a vertical plane, and susceptible to mesh with a series of orifices provided on the under
  • the bed includes a frame 1 surmounted of a sleeping surface 2, intended to receive a mattress not shown in the figure.
  • This frame constitutes the basic structure of the bed. It is intended to be mounted on feet not shown in the figure.
  • the sleeping surface 2 consists of four parts, namely successively from head to foot of the bed, a backrest 20, a part forming pelvis support 21, thigh support plane 22 and foot support plane 23, these last two plans possibly being in one piece, so called general "leg support plan".
  • the backrest 20 is the support planes for the thighs 22 and the feet 23 consist of rigid panels, preferably made of material plastic, to facilitate their cleaning and disinfection.
  • the basin support part 21 can be flexible and deformable or on the contrary rigid and fixed to the chassis 1.
  • transverse edge 210 located on the side of the head of the bed is integral with the transverse edge of the backrest 20 as will be described in more detail below. Its opposite transverse edge 211 is thin and simply rests on part of the thigh support 22.
  • the backrest 20 has an upper face 200 intended to receive a mattress, an opposite face said "lower face” 201 and a transverse edge 202 adjoining the transverse edge 210 of the basin support 21 and fixed thereto, for example by gluing.
  • the chassis 1 comprises a fixed part 10 substantially horizontal a tilting part 11.
  • the fixed part 10 constitutes the basic structure of the bed and comprises in particular two longitudinal sections 100, 100 ′ parallel, interconnected by a series of crosspieces including the horizontal crosspiece 101.
  • This cross member 101 extends perpendicular to the longitudinal direction of the bed, symbolized by the median longitudinal axis XX ′ of this bed. It is positioned roughly in line with the size of the patient lying in the bed.
  • the tilting part 11 of the chassis comprises at least one, and preferably two, longitudinal beams 110, 110 ', parallel to each other, preferably extending on either side of the median longitudinal axis X-X' of the bed. They are interconnected transversely by a cross member 111 situated towards the head of the bed and are welded at their ends opposite to a transverse axis 112, parallel to said cross member 101.
  • This axis 112 is disposed between the cross member 101 and the foot of the bed, substantially in line with the patient's buttocks. It is capable of moving by lateral translation, substantially horizontally and perpendicular to the longitudinal direction XX ' of the bed.
  • each end of the axis 112 is received in a profile in "C" 102, respectively 102 ', open towards the interior of the bed, and mounted respectively on each profile 100, 100 'of the chassis.
  • the bed according to the invention further comprises adjustment means 3 the inclination of the tilting part 11 of the chassis.
  • adjustment means 3 comprise a hydraulic cylinder 30 extending longitudinally under the bed and a rod 31. This is pivotally mounted about an axis 32 passing through the end of the rod of the hydraulic cylinder 30 and it is welded to the axis 112.
  • the longitudinal beams 110, 110 may be articulated around transverse axis 112 instead of being welded to it.
  • the axis 112 supporting the beams 110, 110 'could be fixed and would then play the role of a crosspiece and it is the travese 101 which would be mobile in translation inside "C" sections which would act as a movable axis.
  • the bed also comprises two identical connecting rods 4, respectively 4 ', allowing the backrest 20 to move in translation relative to the part tilting frame 11.
  • the 4 'link bears the same references as the 4' link plus the sign '.
  • the rod 4 ' has one end 40 ', called “connection end”, pivotally mounted around the crosspiece 101 thanks to a rotation ring 400 '.
  • the opposite end 41 of said rod is pivotally mounted around an axis or a pin 42 passing through the beam longitudinal 110 and extending parallel to the crosspiece 101.
  • This axis 42 is located between the two opposite ends of the beam 110.
  • the displacement end 41 of the link 4 is covered with a removable end piece 43 having a series of gear teeth 44.
  • This end piece is advantageously made of plastic, while the other parts of the chassis are metallic. It is thus interchangeable in the event of wear of the teeth 44.
  • the teeth 44 extend radially over at least part of the periphery of the end of the end piece 43, in a vertical plane. They are capable of meshing with a series of orifices 203 provided on the lower face 201 of the backrest 20. These orifices 203 are advantageously blind orifices, so as not to lead to the upper face 200 of the backrest 20 These orifices 203 are regularly spaced on a line extending in the longitudinal direction XX ' of the bed.
  • the end piece 43 does not exist and it is the displacement end 41 of the link 4 which directly carries the gear teeth 4.
  • the bed comprises guide means 5, respectively 5 ', backrest 20 during its sliding movement relative to the part tilting frame 11.
  • the guide means 5 ' include a guide finger 50 'capable of sliding inside a oblong hole 51 '. More specifically, the guide finger 50 'crosses the beam 110 'right through (see Figure 6), to protrude on its side 1100' facing the inside of the bed. It extends parallel to the axis 42.
  • the oblong hole 51 ' is formed opposite said finger 50', inside an element 52 'attached to the underside 201 of the backrest 20 and making protruding from it. More specifically, this element 52 ′ has a section vertical in “C”, the opening of which is oriented towards said lower face 201.
  • the oblong hole 51 ' is delimited by this element in "C" 52' and the face lower 201 of the backrest.
  • the backrest 20 and the tilting part 11 of the chassis are substantially horizontal.
  • the actuation of the hydraulic cylinder 30 causes the displacement of the piston rod in the direction of the head of the bed, which has the effect of causing the displacement of the rod 31 in this same direction.
  • the axis 112 of the tilting part 11 of the chassis also moves in lateral translation, inside the profiles 102, 102 ', in the direction of the head of the bed. This movement, combined with the presence of the rods, 4, 4 ', causes the progressive raising of the tilting part 11 of the chassis.
  • the tilting part 11 of the chassis can thus be raised up to an angle of inclination of approximately 70 ° by compared to the horizontal. All intermediate positions are also possible. Only one is shown in Figure 3 (inclination of approximately 35 °).
  • the angular pivoting of the link 4 causes the movement of the gear teeth 44 in an arc.
  • These teeth mesh with the orifices 203 of the backrest 20, which has the effect of causing the backrest 20 to slide in the direction of the head of the bed (arrows F ).
  • the basin support 21 When the basin support 21 is flexible and secured to the backrest 20, it follows the movement and also moves towards the headboard (arrow F 1 ).
  • the fact that the basin support 21 is flexible allows it to deform and adopt the desired curvature.
  • the transverse edge 211 slides on the thigh support plane 22. This edge is thin so that it can slide easily between a mattress and this support plane 22.

Abstract

The invention relates to a bed which is equipped with a back elevator (20) that can pivot between a horizontal position and a series of elevated inclined positions, while simultaneously moving in translation towards the head or foot of the bed. The inventive bed is characterised in that it comprises a connecting link (4, 4'), one end of which (41, 41') is fitted with teeth (44) which can engage with a series of openings (203) provided on the lower surface (201) of said back elevator (20) in such a way as to slide the back elevator in relation to a reclinable part (11) of the bed frame. The inventive bed is provided with a simple structure and is suitable for hospital beds.

Description

La présente invention concerne un lit, par exemple un lit d'hôpital, muni d'un relève-dos susceptible de pivoter entre une position horizontale et une série de positions inclinées, de façon à amener le patient se trouvant dans ce lit, d'un état couché à un état relevé, voire même sensiblement assis.The present invention relates to a bed, for example a hospital bed, fitted with a backrest capable of pivoting between a horizontal position and a series of inclined positions, so as to bring the patient in this bed, one lying state to a raised state, or even substantially seated.

Ce relève-dos supporte le dos et la tête du patient et correspond environ au 2/5 de la longueur de couchage du lit.This backrest supports the patient's back and head and corresponds about 2/5 of the bed length.

Afin d'améliorer le confort du patient et de diminuer la sensation de compression sur l'abdomen lorsque le relève-dos est incliné, celui-ci est généralement muni de moyens lui permettant de coulisser simultanément en direction de la tête du lit.In order to improve patient comfort and decrease the feeling of compression on the abdomen when the backrest is tilted, it is generally provided with means allowing it to slide simultaneously in direction of the head of the bed.

On connaít ainsi d'après le document FR-2 770 397, un lit équipé d'un relève-buste manoeuvré par un actionneur et monté sur un châssis, de façon à effectuer un mouvement de translation en direction de la tête du lit, lors de son levage.We thus know from document FR-2 770 397, an equipped bed a backrest maneuvered by an actuator and mounted on a chassis, so as to make a translational movement towards the head of the bed, when lifting.

Ce relève-buste est en outre muni de deux bielles. La première bielle est articulée sur le châssis, (au voisinage de la tête de lit) et au milieu du relève-buste. La deuxième bielle est articulée à la base du relève-buste et sur le châssis, sensiblement à l'aplomb du bassin de l'utilisateur. L'inclinaison du relève-buste en direction de la verticale entraíne un déplacement simultané de celui-ci vers la tête du lit.This backrest is also provided with two connecting rods. The first connecting rod is articulated on the frame, (near the headboard) and in the middle of the backrest. The second connecting rod is articulated at the base of the backrest and on the chassis, substantially in line with the user's pelvis. The tilt of the backrest in direction of the vertical causes a simultaneous displacement thereof towards the head bed.

On connaít également d'après le document WO-97/05 803, une table d'examen ou lit facilitant le passage d'un patient de la position couchée, à la position debout.Also known from document WO-97/05 803, a table examination or bed facilitating the passage of a patient from the lying position to the standing.

Cette table d'examen présente des pieds, un châssis articulé et un matelas rigide présentant une section de buste, une section de siège et une section de pieds.This examination table has legs, an articulated frame and a rigid mattress having a bust section, a seat section and a section feet.

Le châssis articulé soutenant le matelas rigide peut occuper une première position dans laquelle les trois sections du matelas sont horizontales et une deuxième position dans laquelle les sections de buste et de pieds de ce matelas sont sensiblement verticales, de façon que cette table d'examen se transforme en chaise.The articulated frame supporting the rigid mattress can occupy a first position in which the three sections of the mattress are horizontal and one second position in which the bust and foot sections of this mattress are substantially vertical, so that this examination table turns into a chair.

Lorsque la section de buste du matelas est amenée en position chaise, elle peut coulisser simultanément par rapport aux longerons du châssis, en direction de la tête de cette table d'examen. When the bust section of the mattress is brought into the chair position, it can slide simultaneously with respect to the frame rails, in the direction from the head of this exam table.

Toutefois la structure de ce dispositif est extrêmement complexe.However, the structure of this device is extremely complex.

La présente invention a pour but de mettre au point un lit tel que précité, d'une structure et d'un fonctionnement simples et qui permette de diminuer considérablement la pression exercée par le relève-dos, sur le dos et l'abdomen du patient utilisant ce lit, lorsque ce relève-dos est redressé.The object of the present invention is to develop a bed such as above, of a simple structure and operation and which makes it possible to reduce considerably the pressure exerted by the backrest, on the back and the abdomen of the patient using this bed, when this backrest is straightened.

Ce but est atteint à l'aide d'un lit, notamment d'hôpital, comprenant un châssis surmonté d'un plan de couchage, ce châssis ayant une partie fixe sensiblement horizontale et une partie inclinable susceptible de pivoter, sous l'action de moyens de réglage de son inclinaison, autour d'un premier axe horizontal, perpendiculaire à la direction longitudinale dudit lit, ledit plan de couchage comprenant au moins un plan formant relève-dos, guidé en translation par rapport à ladite partie inclinable du châssis, de façon à pouvoir coulisser en direction de la tête du lit ou dans la direction opposée, respectivement lors du relèvement ou de l'abaissement de ladite partie inclinable du châssis.This goal is achieved using a bed, especially a hospital bed, comprising a frame surmounted by a sleeping surface, this frame having a fixed part substantially horizontal and a tilting part capable of pivoting, under the action means for adjusting its inclination around a first horizontal axis, perpendicular to the longitudinal direction of said bed, said sleeping plane comprising at least one back-forming plane, guided in translation relative to said tilting part of the chassis, so that it can slide in the direction of the headboard or in the opposite direction, respectively when lifting or the lowering of said tilting part of the chassis.

Ce lit est remarquable en ce que ladite partie inclinable du châssis comprend au moins un longeron de soutien soutenant la face inférieure dudit relève-dos, l'une des extrémités de ce longeron étant solidaire en rotation dudit premier axe, et en ce que ledit lit comprend au moins une biellette dont l'une des extrémités dite "extrémité de liaison" est montée pivotante autour d'un deuxième axe, monté parallèle audit premier axe, entre la tête du lit et ce premier axe, l'un desdits premier et deuxièmes axes étant susceptible de se déplacer sensiblement horizontalement et perpendiculairement à la direction longitudinale du lit et l'autre des deux axes étant monté fixe sur ladite partie fixe du châssis, l'autre extrémité de ladite biellette, dite "extrémité de déplacement" étant montée pivotante autour d'un troisième axe parallèle aux deux premiers axes et prévu sur ledit longeron de soutien en un point situé entre les deux extrémités opposées de celui-ci, l'extrémité de déplacement de ladite biellette présentant une série de dents d'engrenage s'étendant radialement, sur au moins une partie de sa périphérie, dans un plan vertical, et susceptibles d'engrener avec une série d'orifices prévus sur la face inférieure dudit relève-dos, ces orifices étant alignés selon la direction longitudinale dudit lit.This bed is remarkable in that said tilting part of the frame includes at least one support beam supporting the underside of said backrest, one end of this spar being integral in rotation with said first axis, and in that said bed comprises at least one connecting rod, one of the ends of which said "connection end" is pivotally mounted around a second axis, mounted parallel to said first axis, between the head of the bed and this first axis, one of said first and second axes being capable of moving substantially horizontally and perpendicular to the longitudinal direction of the bed and the other of the two axes being fixedly mounted on said fixed part of the chassis, the other end of said link, called "displacement end" being pivotally mounted about a third axis parallel to the first two axes and provided on said support beam at a point located between the two opposite ends of it, the displacement end of said link having a series of gear teeth extending radially, over at least part of its periphery, in a vertical plane, and susceptible to mesh with a series of orifices provided on the underside of said backrest, these orifices being aligned in the longitudinal direction of said bed.

Selon d'autres caractéristiques avantageuses et non limitatives de l'invention :

  • le deuxième axe est monté fixe sur ladite partie fixe du châssis et le premier axe est susceptible de se déplacer sensiblement horizontalement et perpendiculairement à la direction longitudinale dudit lit ;
  • l'extrémité de déplacement de la biellette est recouverte par un embout amovible portant lesdites dents d'engrenage ;
  • les moyens de guidage du relève-dos par rapport à ladite partie inclinable du châssis sont constitués par un doigt de guidage coulissant dans un orifice oblong, ledit doigt étant solidaire dudit longeron de soutien et l'orifice oblong étant prévu sur le relève-dos ou inversement ;
  • le doigt de guidage s'étend depuis l'une des faces latérales dudit longeron de soutien, parallèlement audit troisième axe et l'orifice oblong est ménagé en regard dudit doigt dans un élément faisant saillie depuis la face inférieure dudit relève-dos ;
  • ledit plan de couchage comprend en outre une partie souple déformable, formant support du bassin, intercalée entre ledit relève-dos et un plan de support des jambes, le bord transversal de ce support de bassin du côté tête du lit étant fixé au bord transversal du relève-dos du côté du pied du lit, le bord transversal opposé dudit support de bassin étant mince et reposant sur une partie du plan support des jambes.
According to other advantageous and non-limiting characteristics of the invention:
  • the second axis is fixedly mounted on said fixed part of the chassis and the first axis is capable of moving substantially horizontally and perpendicular to the longitudinal direction of said bed;
  • the displacement end of the link is covered by a removable end-piece carrying said gear teeth;
  • the means for guiding the backrest relative to said tilting part of the chassis are constituted by a guide finger sliding in an oblong orifice, said finger being integral with said support beam and the oblong orifice being provided on the backrest or Conversely ;
  • the guide finger extends from one of the side faces of said support beam, parallel to said third axis and the oblong orifice is formed opposite said finger in an element projecting from the underside of said backrest;
  • said sleeping surface further comprises a flexible deformable part forming a pelvis support, interposed between said backrest and a leg support plane, the transverse edge of this pelvis support on the head end of the bed being fixed to the transverse edge of the backrest on the side of the foot of the bed, the opposite transverse edge of said pelvis support being thin and resting on a part of the leg support plane.

L'invention sera mieux comprise à la lecture de la description suivante d'un mode de réalisation de l'invention, donné à titre d'exemple illustratif et non limitatif, cette description étant établie en faisant référence aux dessins joints dans lesquels :

  • la figure 1 est une vue en perspective du plan de couchage du lit selon l'invention ;
  • la figure 2 est une vue en perspective d'une partie du lit selon l'invention, le relève-dos étant relevé d'environ 70° par rapport à l'horizontale ;
  • la figure 3 est une vue de côté schématique du lit représentant le relève-dos dans trois positions d'inclinaison différentes, et
  • les figures 4, 5 et 6 sont des vues de détail agrandies, respectivement des zones référencées A, B et C sur la figure 2.
The invention will be better understood on reading the following description of an embodiment of the invention, given by way of illustrative and nonlimiting example, this description being established with reference to the accompanying drawings in which:
  • Figure 1 is a perspective view of the sleeping surface of the bed according to the invention;
  • Figure 2 is a perspective view of a part of the bed according to the invention, the backrest being raised by about 70 ° relative to the horizontal;
  • FIG. 3 is a schematic side view of the bed representing the backrest in three different tilt positions, and
  • FIGS. 4, 5 and 6 are enlarged detailed views, respectively of the zones referenced A , B and C in FIG. 2.

Dans la suite de la description et des revendications, les références aux termes "tête", "bassin", "jambes" et "pieds" sont à considérer par rapport à la position d'un patient qui serait couché dans le lit selon l'invention.In the following description and claims, the references the terms "head", "pelvis", "legs" and "feet" are to be considered in relation to the position of a patient who would be lying in the bed according to the invention.

Comme illustré sur la figure 1, le lit comprend un châssis 1 surmonté d'un plan de couchage 2, destiné à recevoir un matelas non représenté sur la figure.As illustrated in Figure 1, the bed includes a frame 1 surmounted of a sleeping surface 2, intended to receive a mattress not shown in the figure.

Ce châssis constitue la structure de base du lit. Il est destiné à être monté sur des pieds non représentés sur la figure. This frame constitutes the basic structure of the bed. It is intended to be mounted on feet not shown in the figure.

Le plan de couchage 2 se compose de quatre parties, à savoir successivement de la tête au pied du lit, d'un relève-dos 20, d'une partie formant support du bassin 21, d'un plan support des cuisses 22 et d'un plan support des pieds 23, ces deux derniers plans pouvant être d'une seule pièce, dénommée de façon générale "plan support des jambes".The sleeping surface 2 consists of four parts, namely successively from head to foot of the bed, a backrest 20, a part forming pelvis support 21, thigh support plane 22 and foot support plane 23, these last two plans possibly being in one piece, so called general "leg support plan".

Le relève-dos 20 est les plans support des cuisses 22 et des pieds 23 sont constitués par des panneaux rigides, réalisés de préférence en matière plastique, afin de faciliter leur nettoyage et leur désinfection.The backrest 20 is the support planes for the thighs 22 and the feet 23 consist of rigid panels, preferably made of material plastic, to facilitate their cleaning and disinfection.

La partie formant support de bassin 21 peut être souple et déformable ou au contraire rigide et fixée sur le châssis 1.The basin support part 21 can be flexible and deformable or on the contrary rigid and fixed to the chassis 1.

Lorsqu'elle est souple, elle peut être réalisée en matière plastique d'un seul morceau ou être constituée de plusieurs lattes jointives comme illustré sur la figure 3. Son bord transversal 210 situé du côté de la tête du lit est solidaire du bord transversal du relève-dos 20 comme cela sera décrit plus en détail ci-après. Son bord transversal opposé 211 est mince et repose simplement sur une partie du plan support des cuisses 22.When flexible, it can be made of plastic in one piece or be made up of several contiguous slats as illustrated on Figure 3. Its transverse edge 210 located on the side of the head of the bed is integral with the transverse edge of the backrest 20 as will be described in more detail below. Its opposite transverse edge 211 is thin and simply rests on part of the thigh support 22.

Lorsqu'elle est rigide, elle est réalisée dans la même matière plastique que les autres parties du plan de couchage 2.When rigid, it is made of the same plastic than the other parts of the sleeping surface 2.

Comme on peut le voir sur les figures 1 ou 2, le relève-dos 20 présente une face supérieure 200 destinée à recevoir un matelas, une face opposée dite "face inférieure" 201 et un bord transversal 202 jouxtant le bord transversal 210 du support de bassin 21 et fixé à celui-ci, par exemple par collage.As can be seen in Figures 1 or 2, the backrest 20 has an upper face 200 intended to receive a mattress, an opposite face said "lower face" 201 and a transverse edge 202 adjoining the transverse edge 210 of the basin support 21 and fixed thereto, for example by gluing.

Comme illustré sur la figure 2, le châssis 1 comprend une partie fixe 10 sensiblement horizontale une partie inclinable 11.As illustrated in FIG. 2, the chassis 1 comprises a fixed part 10 substantially horizontal a tilting part 11.

La partie fixe 10 constitue la structure de base du lit et comprend notamment deux profilés longitudinaux 100, 100' parallèles, reliés entre eux par une série de traverses dont la traverse 101 horizontale. Cette traverse 101 s'étend perpendiculairement à la direction longitudinale du lit, symbolisée par l'axe longitudinal médian X-X' de ce lit. Elle est positionnée sensiblement à l'aplomb de la taille du patient couché dans le lit.The fixed part 10 constitutes the basic structure of the bed and comprises in particular two longitudinal sections 100, 100 ′ parallel, interconnected by a series of crosspieces including the horizontal crosspiece 101. This cross member 101 extends perpendicular to the longitudinal direction of the bed, symbolized by the median longitudinal axis XX ′ of this bed. It is positioned roughly in line with the size of the patient lying in the bed.

La partie inclinable 11 du châssis comprend au moins un, et de préférence deux, longerons longitudinaux 110, 110', parallèles entre eux, s'étendant de préférence de part et d'autre de l'axe longitudinal médian X-X' du lit. Ils sont reliés entre eux transversalement par une traverse 111 située vers la tête du lit et sont soudés à leurs extrémités opposées à un axe transversal 112, parallèle à ladite traverse 101. The tilting part 11 of the chassis comprises at least one, and preferably two, longitudinal beams 110, 110 ', parallel to each other, preferably extending on either side of the median longitudinal axis X-X' of the bed. They are interconnected transversely by a cross member 111 situated towards the head of the bed and are welded at their ends opposite to a transverse axis 112, parallel to said cross member 101.

Cet axe 112 est disposé entre la traverse 101 et le pied du lit, sensiblement à l'aplomb des fesses du patient. Il est susceptible de se déplacer par translation latérale, sensiblement horizontalement et perpendiculairement à la direction longitudinale X-X' du lit.This axis 112 is disposed between the cross member 101 and the foot of the bed, substantially in line with the patient's buttocks. It is capable of moving by lateral translation, substantially horizontally and perpendicular to the longitudinal direction XX ' of the bed.

A cet effet, chaque extrémité de l'axe 112 est reçue dans un profilé en "C" 102, respectivement 102', ouvert en direction de l'intérieur du lit, et monté respectivement sur chaque profilé 100, 100' du châssis.To this end, each end of the axis 112 is received in a profile in "C" 102, respectively 102 ', open towards the interior of the bed, and mounted respectively on each profile 100, 100 'of the chassis.

Ces profilés en "C" 102, 102' ont pour fonction, d'assurer le guidage de l'axe 112 lors de son déplacement en translation latérale.These “C” sections 102, 102 ′ have the function of guiding of the axis 112 during its movement in lateral translation.

Le lit selon l'invention comprend en outre, des moyens de réglage 3 de l'inclinaison de la partie inclinable 11 du châssis. Ces moyens de réglage 3 comprennent un vérin hydraulique 30 s'étendant longitudinalement sous le lit et une biellette 31. Celle-ci est montée pivotante autour d'un axe 32 traversant l'extrémité de la tige du vérin hydraulique 30 et elle est soudée sur l'axe 112.The bed according to the invention further comprises adjustment means 3 the inclination of the tilting part 11 of the chassis. These adjustment means 3 comprise a hydraulic cylinder 30 extending longitudinally under the bed and a rod 31. This is pivotally mounted about an axis 32 passing through the end of the rod of the hydraulic cylinder 30 and it is welded to the axis 112.

Selon une première variante de réalisation de l'invention non illustrée sur les figures, les longerons longitudinaux 110, 110' pourraient être articulés autour de l'axe transversal 112 au lieu d'y être soudés.According to a first alternative embodiment of the invention not illustrated in the figures, the longitudinal beams 110, 110 'could be articulated around transverse axis 112 instead of being welded to it.

Selon une deuxième variante de réalisation, également non représentée sur les figures, l'axe 112 soutenant les longerons 110, 110' pourrait être fixe et jouerait alors le rôle d'une traverse et c'est la travese 101 qui serait mobile en translation à l'intérieur de profilés en "C" et qui jouerait le rôle d'axe mobile .According to a second variant, also not shown in the figures, the axis 112 supporting the beams 110, 110 'could be fixed and would then play the role of a crosspiece and it is the travese 101 which would be mobile in translation inside "C" sections which would act as a movable axis.

Le lit comprend en outre deux biellettes identiques 4, respectivement 4', permettant le déplacement en translation du relève-dos 20 par rapport à la partie inclinable 11 du châssis. La biellette 4' porte les mêmes références que la biellette 4 majorées du signe '.The bed also comprises two identical connecting rods 4, respectively 4 ', allowing the backrest 20 to move in translation relative to the part tilting frame 11. The 4 'link bears the same references as the 4' link plus the sign '.

Comme illustré sur la figure 2, la biellette 4' présente une extrémité 40', dite "extrémité de liaison", montée pivotante autour de la traverse 101 grâce à une bague de rotation 400'.As illustrated in Figure 2, the rod 4 'has one end 40 ', called "connection end", pivotally mounted around the crosspiece 101 thanks to a rotation ring 400 '.

Comme cela apparaít mieux sur la vue de détail de la figure 4, l'extrémité opposée 41 de ladite biellette 4, dite "extrémité de déplacement" est montée pivotante autour d'un axe ou d'une goupille 42 traversant le longeron longitudinal 110 et s'étendant parallèlement à la traverse 101. Cet axe 42 est situé entre les deux extrémités opposées du longeron 110.As it appears better on the detail view of Figure 4, the opposite end 41 of said rod 4, called "displacement end" is pivotally mounted around an axis or a pin 42 passing through the beam longitudinal 110 and extending parallel to the crosspiece 101. This axis 42 is located between the two opposite ends of the beam 110.

L'extrémité de déplacement 41 de la biellette 4 est recouvert d'un embout amovible 43 présentant une série de dents d'engrenage 44. Cet embout est avantageusement réalisé en matière plastique, tandis que les autres parties du châssis sont métalliques. Il est ainsi interchangeable en cas d'usure des dents 44.The displacement end 41 of the link 4 is covered with a removable end piece 43 having a series of gear teeth 44. This end piece is advantageously made of plastic, while the other parts of the chassis are metallic. It is thus interchangeable in the event of wear of the teeth 44.

Les dents 44 s'étendent radialement sur au moins une partie de la périphérie de l'extrémité de l'embout 43, selon un plan vertical. Elles sont susceptibles d'engrener avec une série d'orifices 203 prévues sur la face inférieure 201 du relève-dos 20. Ces orifices 203 sont avantageusement des orifices borgnes, de façon à ne pas déboucher sur la face supérieure 200 du relève-dos 20. Ces orifices 203 sont espacés régulièrement sur une ligne s'étendant selon la direction longitudinale X-X' du lit.The teeth 44 extend radially over at least part of the periphery of the end of the end piece 43, in a vertical plane. They are capable of meshing with a series of orifices 203 provided on the lower face 201 of the backrest 20. These orifices 203 are advantageously blind orifices, so as not to lead to the upper face 200 of the backrest 20 These orifices 203 are regularly spaced on a line extending in the longitudinal direction XX ' of the bed.

Selon une variante de réalisation simplifiée, non représentée sur les figures, l'embout 43 n'existe pas et c'est l'extrémité de déplacement 41 de la biellette 4 qui porte directement les dents d'engrenage 4.According to a simplified variant embodiment, not shown in the figures, the end piece 43 does not exist and it is the displacement end 41 of the link 4 which directly carries the gear teeth 4.

Enfin, le lit comprend des moyens de guidage 5, respectivement 5', du relève-dos 20 lors de son mouvement de coulissement par rapport à la partie inclinable 11 du châssis.Finally, the bed comprises guide means 5, respectively 5 ', backrest 20 during its sliding movement relative to the part tilting frame 11.

Ces moyens de guidage 5, 5' apparaissent mieux sur les vues de détail des figures 5 et 6.These guide means 5, 5 'appear better on the views of detail of Figures 5 and 6.

Comme illustré sur la figure 5, les moyens de guidage 5' comprennent un doigt de guidage 50' susceptible de coulisser à l'intérieur d'un orifice oblong 51'. Plus précisément, le doigt de guidage 50' traverse le longeron 110' de part en part (voir figure 6), pour faire saillie sur sa face latérale 1100' orientée vers l'intérieur du lit. Il s'étend parallèlement à l'axe 42.As illustrated in FIG. 5, the guide means 5 ' include a guide finger 50 'capable of sliding inside a oblong hole 51 '. More specifically, the guide finger 50 'crosses the beam 110 'right through (see Figure 6), to protrude on its side 1100' facing the inside of the bed. It extends parallel to the axis 42.

L'orifice oblong 51' est ménagé en regard dudit doigt 50', à l'intérieur d'un élément 52' rapporté sur la face inférieure 201 du relève-dos 20 et faisant saillie depuis celui-ci. Plus précisément, cet élément 52' présente une section verticale en "C" dont l'ouverture est orientée vers ladite face inférieure 201. L'orifice oblong 51' se trouve délimité par cet élément en "C" 52' et la face inférieure 201 du relève-dos.The oblong hole 51 'is formed opposite said finger 50', inside an element 52 'attached to the underside 201 of the backrest 20 and making protruding from it. More specifically, this element 52 ′ has a section vertical in “C”, the opening of which is oriented towards said lower face 201. The oblong hole 51 'is delimited by this element in "C" 52' and the face lower 201 of the backrest.

D'autres dispositifs de guidage fonctionnant sur le même principe d'un doigt de guidage coopérant avec un orifice oblong pourraient également être prévus, le doigt de guidage étant prévu sur la face du longeron 110, 110' en regard du relève-dos et l'orifice l'oblong étant prévu sur la face inférieure 201 du relève-dos 20 ou inversement.Other guiding devices operating on the same principle of a guide finger cooperating with an oblong orifice could also be provided, the guide finger being provided on the face of the side member 110, 110 'facing of the backrest and the oblong opening being provided on the underside 201 of the backrest 20 or vice versa.

Le fonctionnement du lit va maintenant être décrit en faisant référence aux figures 2 et 3. The operation of the bed will now be described by making reference to Figures 2 and 3.

Dans la position de départ ou position couchée, le relève-dos 20 et la partie inclinable 11 du châssis sont sensiblement horizontaux.In the starting or lying position, the backrest 20 and the tilting part 11 of the chassis are substantially horizontal.

L'actionnement du vérin hydraulique 30 entraíne le déplacement de la tige du piston dans la direction de la tête du lit, ce qui a pour effet d'entraíner le déplacement de la biellette 31 dans cette même direction.The actuation of the hydraulic cylinder 30 causes the displacement of the piston rod in the direction of the head of the bed, which has the effect of causing the displacement of the rod 31 in this same direction.

L'axe 112 de la partie inclinable 11 du châssis se déplace également en translation latérale, à l'intérieur des profilés 102, 102', en direction de la tête du lit. Ce déplacement, combiné à la présence des biellettes, 4, 4', entraíne le relèvement progressif de la partie inclinable 11 du châssis. La partie inclinable 11 du châssis peut ainsi se relever jusqu'à un angle d'inclinaison d'environ 70° par rapport à l'horizontale. Toutes les positions intermédiaires sont également possibles. Une seule est représentée sur la figure 3 (inclinaison d'environ 35°).The axis 112 of the tilting part 11 of the chassis also moves in lateral translation, inside the profiles 102, 102 ', in the direction of the head of the bed. This movement, combined with the presence of the rods, 4, 4 ', causes the progressive raising of the tilting part 11 of the chassis. The tilting part 11 of the chassis can thus be raised up to an angle of inclination of approximately 70 ° by compared to the horizontal. All intermediate positions are also possible. Only one is shown in Figure 3 (inclination of approximately 35 °).

De façon simultanée, le pivotement angulaire de la biellette 4 entraíne le déplacement des dents d'engrenage 44 selon un arc de cercle. Ces dents engrènent avec les orifices 203 du relève-dos 20, ce qui a pour effet de faire coulisser le relève-dos 20 en direction de la tête du lit (flèches F).Simultaneously, the angular pivoting of the link 4 causes the movement of the gear teeth 44 in an arc. These teeth mesh with the orifices 203 of the backrest 20, which has the effect of causing the backrest 20 to slide in the direction of the head of the bed (arrows F ).

Lorsque le support de bassin 21 est souple et solidaire du relève-dos 20, il suit le mouvement et se déplace également vers la tête de lit (flèche F 1 ). Le fait que le support de bassin 21 soit souple lui permet de se déformer et d'adopter la courbure souhaitée. Le bord transversal 211 glisse sur le plan support des cuisses 22. Ce bord est mince de façon à pouvoir glisser facilement entre un matelas et ce plan support 22.When the basin support 21 is flexible and secured to the backrest 20, it follows the movement and also moves towards the headboard (arrow F 1 ). The fact that the basin support 21 is flexible allows it to deform and adopt the desired curvature. The transverse edge 211 slides on the thigh support plane 22. This edge is thin so that it can slide easily between a mattress and this support plane 22.

Inversement le mouvement de pivotement de la partie 11 du châssis en direction de l'horizontale ramène le relève-dos 20 dans la direction opposée, c'est-à-dire vers le pied du lit.Conversely the pivoting movement of part 11 of the chassis in the horizontal direction brings the backrest 20 in the opposite direction, that is to say towards the foot of the bed.

Claims (6)

  1. A bed, in particular a hospital bed, comprising a frame (1) surmounted by a bedding plane (2), the frame (1) having a stationary portion (10) that is substantially horizontal and a tiltable portion (11) capable of pivoting, under drive from means (3) for adjusting its tilt, about a first horizontal shaft (112) extending perpendicularly to the longitudinal direction (X-X') of said bed, said bedding plane (2) comprising at least a plane forming a back lifter (20), guided to move in translation relative to said tiltable portion (11) of the frame so as to be capable of sliding towards the head of the bed or in the opposite direction, respectively while said tiltable portion (11) of the frame is being raised or lowered, the bed being characterized in that said tiltable portion (11) of the frame comprises at least one supporting length member (110, 110') supporting the bottom face (201) of said back lifter (20), one of the ends of said length member being constrained to turn with said first shaft (112), and in that said bed includes at least one link (4, 4') having one of its ends (40, 40') referred to as a "connection end" mounted to pivot about a second shaft (101) mounted parallel to said first shaft (112) between the head of the bed and said first shaft (112), one of said first and second shafts (112, 101) being capable of moving substantially horizontally and perpendicularly to the longitudinal direction (X-X') of the bed, and the other of the two shafts being mounted stationary on said stationary portion (10) of the frame, the other end (41, 41') of said link (4, 4') referred to as a "displacement end" being mounted to pivot about a third shaft (42) parallel to the first two shafts and provided on said supporting length member (110, 110') at a point situated between the two opposite ends thereof, the displacement end (41, 41') of said link (4, 4') presenting a series of meshing teeth (44, 44') extending radially over at least a fraction of its periphery in a vertical plane and suitable for meshing with a series of orifices (203) provided in the bottom face (201) of said back lifter (20), said orifices (203) being in alignment along the longitudinal direction (X-X') of said bed.
  2. A bed according to claim 1, characterized in that the second shaft (101) is mounted stationary on said stationary portion (10) of the frame, and in that the first shaft (112) is suitable for moving substantially horizontally and perpendicularly to the longitudinal direction (X-X') of said bed.
  3. A bed according to claim 1, characterized in that the displacement end (41, 41') of the link (4, 4') is covered by a removable endpiece (42) carrying said meshing teeth (44).
  4. A bed according to claim 1, characterized in that the means (5, 5') for guiding the back lifter (20) relative to said tiltable portion (11) of the frame are constituted by a guide finger (50, 50') sliding in an oblong orifice (51, 51'), said finger (50, 50') being secured to said supporting length member (110, 110') and the oblong orifice (51, 51') being provided in the back lifter (20), or vice versa.
  5. A bed according to claim 4, characterized in that the guide finger (50, 50') extends from one of the side faces (1100, 1100') of said supporting length member (110, 110') parallel to said third shaft (42), and in that the oblong orifice (51, 51') is formed facing said finger (50, 50') in an element (52, 52') projecting from the bottom face (201) of said back lifter (20).
  6. A bed according to claim 1, characterized in that said bedding plane (2) further comprises a deformable flexible portion (21), forming a pelvis support, interposed between said back lifter (20) and a support plane (22, 23) for the legs, the transverse edge of this pelvis support on its bed head end being fixed to the transverse edge of the back lifter on its bed foot end, the opposite transverse edge of said pelvis support being thin and resting on a portion of said leg support plane (22, 23).
EP02720083A 2001-03-28 2002-03-26 Bed equipped with a back elevator Expired - Lifetime EP1372433B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0104163A FR2822661B1 (en) 2001-03-28 2001-03-28 BED WITH A BACK-UP
FR0104163 2001-03-28
PCT/FR2002/001047 WO2002076266A1 (en) 2001-03-28 2002-03-26 Bed equipped with a back elevator

Publications (2)

Publication Number Publication Date
EP1372433A1 EP1372433A1 (en) 2004-01-02
EP1372433B1 true EP1372433B1 (en) 2004-11-24

Family

ID=8861622

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02720083A Expired - Lifetime EP1372433B1 (en) 2001-03-28 2002-03-26 Bed equipped with a back elevator

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Country Link
EP (1) EP1372433B1 (en)
AT (1) ATE282977T1 (en)
CA (1) CA2441990A1 (en)
DE (1) DE60202052T2 (en)
FR (1) FR2822661B1 (en)
WO (1) WO2002076266A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8555438B2 (en) 2008-11-17 2013-10-15 Hill-Rom Services, Inc,. Anthropometrically governed occupant support
FR3006174A1 (en) * 2013-05-28 2014-12-05 Edena Sas BED WITH A SOMMIER COMPRISING A BUSTREST

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2407138B1 (en) 2003-05-21 2015-02-25 Hill-Rom Services, Inc. Hopsital bed
CN104107121A (en) * 2013-04-19 2014-10-22 莱州科亿宏电动床有限公司 Backrest device applied to nursing bed
GB2528285A (en) * 2014-07-16 2016-01-20 Accora Ltd Profiling bed
CN108378998B (en) * 2018-03-23 2020-07-17 河北万瑞医疗器械有限公司 Back lifting mechanism of nursing bed

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
US4376316A (en) * 1980-12-31 1983-03-15 Joerns Furniture Company Hinge for adjustable beds and the like
US5537701A (en) * 1994-03-15 1996-07-23 Maxwell Products, Inc. Adjustable articulated bed
US5790997A (en) * 1995-08-04 1998-08-11 Hill-Rom Inc. Table/chair egress device
FR2770397B1 (en) 1997-11-06 2000-03-10 Sunrise Medical Sa BED, IN PARTICULAR HOSPITALIZATION BED, EQUIPPED WITH A BODY LIFT MANEUVERED BY AN ACTUATOR

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8555438B2 (en) 2008-11-17 2013-10-15 Hill-Rom Services, Inc,. Anthropometrically governed occupant support
US9956127B2 (en) 2008-11-17 2018-05-01 Hill-Rom Services, Inc. Occupant support with a translatable and parallel translatable upper body section
FR3006174A1 (en) * 2013-05-28 2014-12-05 Edena Sas BED WITH A SOMMIER COMPRISING A BUSTREST

Also Published As

Publication number Publication date
DE60202052D1 (en) 2004-12-30
FR2822661A1 (en) 2002-10-04
WO2002076266A1 (en) 2002-10-03
DE60202052T2 (en) 2005-11-24
EP1372433A1 (en) 2004-01-02
ATE282977T1 (en) 2004-12-15
CA2441990A1 (en) 2002-10-03
FR2822661B1 (en) 2003-09-12

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