EP0721754A1 - Device permitting the change of the hardness of the central zone of a slatted bed-base - Google Patents

Device permitting the change of the hardness of the central zone of a slatted bed-base Download PDF

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Publication number
EP0721754A1
EP0721754A1 EP96400096A EP96400096A EP0721754A1 EP 0721754 A1 EP0721754 A1 EP 0721754A1 EP 96400096 A EP96400096 A EP 96400096A EP 96400096 A EP96400096 A EP 96400096A EP 0721754 A1 EP0721754 A1 EP 0721754A1
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EP
European Patent Office
Prior art keywords
rigid
pairs
rotary
bars
slats
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP96400096A
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German (de)
French (fr)
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EP0721754B1 (en
Inventor
Christian Morizot
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La Compagnie Continentale Simmons SAS
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LA CONTINENTALE SIMMONS Cie
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Publication of EP0721754A1 publication Critical patent/EP0721754A1/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C23/00—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
    • A47C23/06—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using wooden springs, e.g. of slat type ; Slatted bed bases
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C20/00—Head -, foot -, or like rests for beds, sofas or the like
    • A47C20/04—Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination
    • A47C20/041—Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination by electric motors

Definitions

  • the present invention relates to a device for changing the firmness of the seat area of a slatted base.
  • Slatted bed bases comprising in particular an articulated part with slats which can be raised from a horizontal position to a maximum raised position so as to constitute a backrest.
  • Such a box spring gives complete satisfaction from the comfort point of view when the lifting part is in the horizontal position, but as this part is raised there appears a feeling of discomfort at the level of the seating area defined by the forming part. folder because the slats of this seat area sink more and more under the weight of the box spring user.
  • the present invention aims to eliminate the above drawbacks by proposing a device for changing the firmness of the seating area of a slatted base defined by a lifting part forming the back of the base and which is characterized in that that it comprises a rigid piece in the form of a plate placed under the slats of the seating area and movable relative to the frame of the box spring between a lower position at which the slats of the seating area can move freely and a higher position limiting the travel of the slats to a value corresponding to a maximum firmness of the seat area.
  • the rigid plate-shaped part is moved in a direction perpendicular to the plane of the frame of the bed base in synchronism with the pivoting of the lifting part forming the backrest so that the latter occupies its lower position in the stowed position within the frame of the bed base. the lifting part and its upper position in the maximum raised position of the lifting part.
  • the bed base comprises an electric motor for controlling the pivoting of the lifting part forming the backrest
  • the rigid plate-shaped part is displacement controlled by the electric motor by means of mechanical displacement means.
  • the mechanical means for moving the rigid piece in the form of a plate comprise two parallel bars mounted for rotation in the frame of the bed base transversely thereto and coupled to the motor shaft of the electric motor so as to be jointly driven in rotation; and at least two cam elements integral respectively with the two rotary bars and located below the rigid plate-shaped part so as to move the latter perpendicular to the rotary bars when jointly driven by the drive shaft.
  • the means for coupling the rotary bars to the motor shaft comprise two pairs of rods, each comprising a connecting rod for the two rotary bars and a connecting rod for one of the bars rotatable to the motor shaft by means of a lever arm secured to the motor shaft.
  • Each connecting rod of the two rotary bars is connected to these by means of lever arms.
  • each rotary bar carries two cam elements.
  • Each cam element is produced from a metal plate fixed perpendicular to the corresponding rotary support bar.
  • the rigid plate-shaped part is guided movement relative to the rotary bars by two pairs of guide tabs integral with the rigid part perpendicular thereto and engaged respectively on the two rotary bars passing through oblong holes in the guide tabs.
  • the pairs of rods, the pairs of cam elements and the pairs of guide tabs are arranged symmetrically to the longitudinal axis of the frame of the bed base.
  • the rigid part is a padded or padded rectangular metal plate.
  • Figure 1 is a schematic side view of a slatted base with partial cutaway showing the firmness change device according to the invention.
  • Figure 2 is a perspective view from below of the base according to arrow II of Figure 1 and showing the firmness change device in the low position.
  • Figure 3 is a view similar to that of Figure 2 showing the firmness change device in the high position of maximum firmness.
  • Figure 4 is a sectional view along line IV-IV of Figure 2.
  • FIG. 5 is a sectional view along the line V-V of FIG. 3.
  • Figure 6 is a sectional view along line VI-VI of Figure 2.
  • FIG. 7 is a perspective view along arrow VII of FIG. 2.
  • the reference 1 designates a bed base of the type with transverse slats 2 arranged transversely to the wooden frame 3 of the bed base which comprises a lifting part 4 consisting of a metal frame carrying transverse slats 2 and which can occupy a stowed position horizontal in frame 3 of the bed base and several raised inclined positions selectively adjustable by the user so as to constitute a backrest.
  • the movement of the lifting part 4 is controlled by an electric motor 5 fixed in the frame 3 of the bed base to one of the side members 6 thereof.
  • the electric motor 5 is activated by a manual control (not shown) connected to the latter by an electric cord.
  • the electric motor 5 has its motor shaft 7, arranged transversely between the longitudinal members 6 of the frame 3 of the bed base, which is mechanically coupled to the lifting part 4 by lateral arms 8 allowing pivoting around the axis defined by the motor shaft 7 of the lifting part 4.
  • the firmness of the seat area of the slats 2 defined by the part 4 occupying a raised position forming the backrest is automatically changed as a function of the pivoting of the lifting part 4.
  • the device for changing the firmness of this seating area comprises a rigid piece in the form of a plate 9, preferably metallic and rectangular, placed under the slats 2 of the seating area and which can be moved so guided relative to the frame 3 of the box spring between a lower position shown in FIGS. 2 and 4 at which the slats 2 of the seating area can freely swing under the weight of the person and an upper position shown in FIGS. 3 and 5 limiting the slats 2 travel at a value corresponding to maximum firmness of the seat area.
  • the slats 2 of the seating area provide the user lying on the bed base, via a mattress, with the usual feeling of comfort because the weight exerted on this area by the user's buttocks is not very high.
  • the rigid part 9 approaches the slats 2 of the seating area so as to limit the movement of its slats and to prevent the increasing weight of the user concentrating on the gluteal area thereof crushes the slats.
  • the movement of the rigid plate-shaped part 9, in a direction perpendicular to the plane of the frame 3 of the bed base 1, is controlled by the electric motor 5, the motor shaft 7 of which is coupled to the rigid part 9 by mechanical means. displacement of it.
  • These mechanical means comprise two rigid metallic and parallel bars 10, 11 rotatably mounted in the frame 3 transversely to the side members 6 thereof and coupled to the motor shaft 7 so as to be jointly driven in rotation in the same direction; and two pairs of cam members 12; 13 secured respectively to the two rotary bars 10; 11 and located below the rigid part 9 so as to move the latter perpendicular to the rotary bars 10, 11 when jointly driven by the drive shaft 7.
  • Each cam element 12, 13 is produced from a plate metal fixed perpendicularly to the corresponding rotary support bar 10, 11.
  • Each bar 10, 11 has each of its tubular end parts rotatably mounted on a cylindrical axis 14 fixed perpendicular to the corresponding spar 6, for example by a fixing screw 15 .
  • the means for coupling the rotary bars 10, 11 to the drive shaft 7 comprise two pairs of links 15, 16 each comprising a link 17 for pairing the two bars 10, 11 and connected to these bars by means of two arms lever 18 and a connecting rod 19 for connecting the rotary bar 10 to the motor shaft 7 by means of a lever arm 20 integral with the motor shaft 7.
  • Each link 19 is connected to the rotary bar 10 by the lever arm 18 connecting the bar 10 to the link 17.
  • each articulation axis 21 connecting a lever arm 20 to the corresponding link 19 is housed in a slot or oblong hole 22 made at the end of the connecting rod 19 and allowing the electric motor 5, when the rigid plate-shaped part 9 is in the low position, to have sufficient power to lift the rigid part 9.
  • the oblong holes 22 introduce a delay in the lifting of the plate 9 and making it possible not to increase the firmness of the seat area too quickly if the head is only raised slightly and not to overload the motor during the start of head or torso lift phase, phase where the motor is most requested d u power point of view.
  • the movement of the rigid part 9 is guided in the direction perpendicular to the plane passing through the rotary bars 10, 11 by two pairs of guide tabs 23, 24 fixed under the rigid part 9 perpendicularly to it, for example by means of fixing screws, and engaged respectively on the two rotary bars 10, 11 which pass through oblong holes 25, 26 respectively of the guide tabs 23, 24 allowing these to slide perpendicular to the respective bars 10, 11 .
  • the pairs of rods 15, 16, the pairs of cam elements 12, 13 and the pairs of guide tabs 23, 24 are arranged symmetrically to the longitudinal axis of the frame 3 of the bed base 1.
  • the lowering of the rigid plate-shaped part 9 is carried out by controlling the electric motor 5 so as to move the cam elements 12, 13 in the opposite direction to that indicated by the arrows in FIG. 4, the lowering movement of the rigid part 9 being effected by gravity or under the weight of the user.
  • the weight of the user which is maximum when the latter is seated with the part 4 raised in the maximum position, is effectively supported practically by the two rigid metal bars 10, 11.
  • the slats 2 of the seating area are practically in contact with the latter which is preferably padded or padded.
  • the invention has been described with reference to a bed base with an electric motor for pivoting control of the lifting part 4, but it is understood that it also applies to a bed base of the type with lifting part forming a manually operated backrest.
  • a bed base of the type with lifting part forming a manually operated backrest.
  • the movement of the rigid plate-shaped part can also be controlled by an independent electric motor possibly synchronized with the lifting motor of the lifting part forming the backrest.
  • the invention thus makes it possible to obtain a gluteal region of the flexible and comfortable bed base in the supine position and a firm gluteal region by change of firmness in the seated position.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Casting Devices For Molds (AREA)

Abstract

Th bed frame, made with one hinged section (4) forming a back-rest for a person sitting up in bed, has a rigid panel (9) situated beneath the slats in the seat zone. The panel can be moved between a lower position in which it is separate from the slats and an upper one in which it is pressed against them. The rigid panel is moved perpendicular to the slatted surface of the bed frame synchronously with the movement of the lifting back rest, using an electric motor (5) and a cam mechanism (12,13) on parallel bars (10,11) linked to the motor shaft by two pairs of arms (15,16). The rigid panel can be made from sheet metal with a padded surface.

Description

La présente invention concerne un dispositif permettant de changer la fermeté de la zone d'assise d'un sommier à lattes.The present invention relates to a device for changing the firmness of the seat area of a slatted base.

On connaît des sommiers à lattes comprenant notamment une partie articulée à lattes pouvant être relevée d'une position horizontale à une position relevée maximum de façon à constituer un dossier.Slatted bed bases are known, comprising in particular an articulated part with slats which can be raised from a horizontal position to a maximum raised position so as to constitute a backrest.

Un tel sommier donne entière satisfaction du point de vue confort lorsque la partie relevable est en position horizontale, mais au fur et à mesure que cette partie est relevée apparaît une sensation d'inconfort au niveau de la zone d'assise définie par la partie formant dossier du fait que les lattes de cette zone d'assise s'enfoncent de plus en plus sous le poids de l'utilisateur du sommier.Such a box spring gives complete satisfaction from the comfort point of view when the lifting part is in the horizontal position, but as this part is raised there appears a feeling of discomfort at the level of the seating area defined by the forming part. folder because the slats of this seat area sink more and more under the weight of the box spring user.

Pour éviter le problème d'enfoncement exagéré des lattes en position assise, des solutions ont été proposées consistant toutes à renforcer la fermeté de la zone fessière en utilisant des lattes de raideur plus élevée, des lattes supplémentaires, avec ou sans curseurs de réglage de fermeté. Cependant, ces solutions connues ont pour inconvénient de rendre le sommier inconfortable et trop ferme en position allongée de repos de l'utilisateur.To avoid the problem of excessive sagging of the slats in the seated position, solutions have been proposed, all consisting in strengthening the firmness of the gluteal region by using slats of higher stiffness, additional slats, with or without sliders for adjusting the firmness. . However, these known solutions have the drawback of making the bed base uncomfortable and too firm in the user's extended position of rest.

La présente invention a pour but d'éliminer les inconvénients ci-dessus en proposant un dispositif permettant de changer la fermeté de la zone d'assise d'un sommier à lattes définie par une partie relevable formant dossier du sommier et qui est caractérisé en ce qu'il comprend une pièce rigide en forme de plaque disposée sous les lattes de la zone d'assise et déplaçable relativement au cadre du sommier entre une position inférieure à laquelle les lattes de la zone d'assise peuvent se débattre librement et une position supérieure limitant le débattement des lattes à une valeur correspondant à une fermeté maximum de la zone d'assise.The present invention aims to eliminate the above drawbacks by proposing a device for changing the firmness of the seating area of a slatted base defined by a lifting part forming the back of the base and which is characterized in that that it comprises a rigid piece in the form of a plate placed under the slats of the seating area and movable relative to the frame of the box spring between a lower position at which the slats of the seating area can move freely and a higher position limiting the travel of the slats to a value corresponding to a maximum firmness of the seat area.

Avantageusement, la pièce rigide en forme de plaque est déplacée suivant une direction perpendiculaire au plan du cadre du sommier en synchronisme avec le pivotement de la partie relevable formant dossier de façon que cette dernière occupe sa position inférieure en position rangée dans le cadre du sommier de la partie relevable et sa position supérieure en position relevée maximum de la partie relevable.Advantageously, the rigid plate-shaped part is moved in a direction perpendicular to the plane of the frame of the bed base in synchronism with the pivoting of the lifting part forming the backrest so that the latter occupies its lower position in the stowed position within the frame of the bed base. the lifting part and its upper position in the maximum raised position of the lifting part.

Lorsque le sommier comprend un moteur électrique de commande du pivotement de la partie relevable formant dossier, la pièce rigide en forme de plaque est à déplacement commandé par le moteur électrique par l'intermédiaire de moyens mécaniques de déplacement.When the bed base comprises an electric motor for controlling the pivoting of the lifting part forming the backrest, the rigid plate-shaped part is displacement controlled by the electric motor by means of mechanical displacement means.

Les moyens mécaniques de déplacement de la pièce rigide en forme de plaque comprennent deux barres parallèles montées à rotation dans le cadre du sommier transversalement à celui-ci et accouplées à l'arbre moteur du moteur électrique de façon à être conjointement entraînées en rotation ; et au moins deux éléments formant came solidaires respectivement des deux barres rotatives et situés en dessous de la pièce rigide en forme de plaque de façon à déplacer celle-ci perpendiculairement aux barres rotatives lorsqu'en entraînées conjointement par l'arbre moteur.The mechanical means for moving the rigid piece in the form of a plate comprise two parallel bars mounted for rotation in the frame of the bed base transversely thereto and coupled to the motor shaft of the electric motor so as to be jointly driven in rotation; and at least two cam elements integral respectively with the two rotary bars and located below the rigid plate-shaped part so as to move the latter perpendicular to the rotary bars when jointly driven by the drive shaft.

Les moyens d'accouplement des barres rotatives à l'arbre moteur comprennent deux paires de biellettes comprenant chacune une biellette de liaison des deux barres rotatives et une biellette de liaison de l'une des barres rotatives à l'arbre moteur par l'intermédiaire d'un bras de levier solidaire de l'arbre moteur.The means for coupling the rotary bars to the motor shaft comprise two pairs of rods, each comprising a connecting rod for the two rotary bars and a connecting rod for one of the bars rotatable to the motor shaft by means of a lever arm secured to the motor shaft.

Chaque biellette de liaison des deux barres rotatives est reliée à celles-ci par l'intermédiaire de bras de levier.Each connecting rod of the two rotary bars is connected to these by means of lever arms.

De préférence, chaque barre rotative porte deux éléments formant came.Preferably, each rotary bar carries two cam elements.

Chaque élément formant came est réalisé à partir d'une plaque métallique fixée perpendiculairement à la barre rotative de support correspondante.Each cam element is produced from a metal plate fixed perpendicular to the corresponding rotary support bar.

La pièce rigide en forme de plaque est à déplacement guidé relativement aux barres rotatives par deux paires de pattes de guidage solidaires de la pièce rigide perpendiculairement à celle-ci et engagées respectivement sur les deux barres rotatives traversant des trous oblongs des pattes de guidage.The rigid plate-shaped part is guided movement relative to the rotary bars by two pairs of guide tabs integral with the rigid part perpendicular thereto and engaged respectively on the two rotary bars passing through oblong holes in the guide tabs.

Les paires de biellettes, les paires d'éléments formant came et les paires de pattes de guidage sont disposées symétriquement à l'axe longitudinal du cadre du sommier.The pairs of rods, the pairs of cam elements and the pairs of guide tabs are arranged symmetrically to the longitudinal axis of the frame of the bed base.

La pièce rigide est une plaque métallique rectangulaire capitonnée ou rembourrée.The rigid part is a padded or padded rectangular metal plate.

L'invention sera mieux comprise et d'autres buts, caractéristiques, détails et avantages de celle-ci apparaîtront plus clairement dans la description explicative qui va suivre faite en référence aux dessins schématiques annexés donnés uniquement à titre d'exemple illustrant un mode de réalisation de l'invention et dans lesquels :The invention will be better understood and other objects, characteristics, details and advantages thereof will appear more clearly in the explanatory description which follows, made with reference to the appended schematic drawings given solely by way of example illustrating an embodiment. of the invention and in which:

La figure 1 est une vue schématique de côté d'un sommier à lattes avec arrachement partiel représentant le dispositif de changement de fermeté conforme à l'invention.Figure 1 is a schematic side view of a slatted base with partial cutaway showing the firmness change device according to the invention.

La figure 2 est une vue en perspective de dessous du sommier suivant la flèche II de la figure 1 et représentant le dispositif de changement de fermeté en position basse.Figure 2 is a perspective view from below of the base according to arrow II of Figure 1 and showing the firmness change device in the low position.

La figure 3 est une vue semblable à celle de la figure 2 représentant le dispositif de changement de fermeté en position haute de fermeté maximum.Figure 3 is a view similar to that of Figure 2 showing the firmness change device in the high position of maximum firmness.

La figure 4 est une vue en coupe suivant la ligne IV-IV de la figure 2.Figure 4 is a sectional view along line IV-IV of Figure 2.

La figure 5 est une vue en coupe suivant la ligne V-V de la figure 3.FIG. 5 is a sectional view along the line V-V of FIG. 3.

La figure 6 est une vue en coupe suivant la ligne VI-VI de la figure 2.Figure 6 is a sectional view along line VI-VI of Figure 2.

La figure 7 est une vue en perspective suivant la flèche VII de la figure 2.FIG. 7 is a perspective view along arrow VII of FIG. 2.

En se reportant aux figures, la référence 1 désigne un sommier du type à lattes transversales 2 disposées transversalement au cadre en bois 3 du sommier qui comprend une partie relevable 4 constituée d'un cadre métallique portant des lattes transversales 2 et pouvant occuper une position rangée horizontale dans le cadre 3 du sommier et plusieurs positions relevées inclinées sélectivement réglables par l'utilisateur de façon à constituer un dossier.Referring to the figures, the reference 1 designates a bed base of the type with transverse slats 2 arranged transversely to the wooden frame 3 of the bed base which comprises a lifting part 4 consisting of a metal frame carrying transverse slats 2 and which can occupy a stowed position horizontal in frame 3 of the bed base and several raised inclined positions selectively adjustable by the user so as to constitute a backrest.

Le déplacement de la partie relevable 4 est commandé par un moteur électrique 5 fixé dans le cadre 3 du sommier à l'un des longerons 6 de celui-ci. Le moteur électrique 5 est activé par une commande manuelle (non représentée) reliée à celui-ci par un cordon électrique. Le moteur électrique 5 a son arbre moteur 7, disposé transversalement entre les longerons 6 du cadre 3 du sommier, qui est accouplé mécaniquement à la partie relevable 4 par des bras latéraux 8 permettant le pivotement autour de l'axe défini par l'arbre moteur 7 de la partie relevable 4.The movement of the lifting part 4 is controlled by an electric motor 5 fixed in the frame 3 of the bed base to one of the side members 6 thereof. The electric motor 5 is activated by a manual control (not shown) connected to the latter by an electric cord. The electric motor 5 has its motor shaft 7, arranged transversely between the longitudinal members 6 of the frame 3 of the bed base, which is mechanically coupled to the lifting part 4 by lateral arms 8 allowing pivoting around the axis defined by the motor shaft 7 of the lifting part 4.

Selon l'invention, la fermeté de la zone d'assise des lattes 2 définie par la partie 4 occupant une position relevée formant dossier est automatiquement changée en fonction du pivotement de la partie relevable 4.According to the invention, the firmness of the seat area of the slats 2 defined by the part 4 occupying a raised position forming the backrest is automatically changed as a function of the pivoting of the lifting part 4.

A cet effet, le dispositif permettant de changer la fermeté de cette zone d'assise comprend une pièce rigide en forme de plaque 9, de préférence métallique et rectangulaire, disposée sous les lattes 2 de la zone d'assise et pouvant être déplacée de façon guidée relativement au cadre 3 du sommier entre une position inférieure représentée aux figures 2 et 4 à laquelle les lattes 2 de la zone d'assise peuvent se débattre librement sous le poids de la personne et une position supérieure représentée aux figures 3 et 5 limitant le débattement des lattes 2 à une valeur correspondant à une fermeté maximum de la zone d'assise.To this end, the device for changing the firmness of this seating area comprises a rigid piece in the form of a plate 9, preferably metallic and rectangular, placed under the slats 2 of the seating area and which can be moved so guided relative to the frame 3 of the box spring between a lower position shown in FIGS. 2 and 4 at which the slats 2 of the seating area can freely swing under the weight of the person and an upper position shown in FIGS. 3 and 5 limiting the slats 2 travel at a value corresponding to maximum firmness of the seat area.

Ainsi, lorsque la partie relevable 4 occupe sa position rangée horizontale dans le cadre 3 du sommier, les lattes 2 de la zone d'assise procurent à l'utilisateur allongé sur le sommier, via un matelas, la sensation de confort habituel du fait que le poids exercé à cette zone par le fessier de l'utilisateur n'est pas très élevé. Au fur et à mesure que la partie 4 est relevée vers sa position relevée maximum, la pièce rigide 9 se rapproche des lattes 2 de la zone d'assise de façon à limiter le débattement de ses lattes et à empêcher que le poids de plus en plus important de l'utilisateur se concentrant à la zone fessière de celle-ci écrase les lattes.Thus, when the lifting part 4 occupies its horizontal stowed position in the frame 3 of the bed base, the slats 2 of the seating area provide the user lying on the bed base, via a mattress, with the usual feeling of comfort because the weight exerted on this area by the user's buttocks is not very high. As and as the part 4 is raised to its maximum raised position, the rigid part 9 approaches the slats 2 of the seating area so as to limit the movement of its slats and to prevent the increasing weight of the user concentrating on the gluteal area thereof crushes the slats.

Le déplacement de la pièce rigide en forme de plaque 9, suivant une direction perpendiculaire au plan du cadre 3 du sommier 1, est commandé par le moteur électrique 5 dont l'arbre moteur 7 est accouplé à la pièce rigide 9 par des moyens mécaniques de déplacement de celle-ci.The movement of the rigid plate-shaped part 9, in a direction perpendicular to the plane of the frame 3 of the bed base 1, is controlled by the electric motor 5, the motor shaft 7 of which is coupled to the rigid part 9 by mechanical means. displacement of it.

Ces moyens mécaniques comprennent deux barres rigides métalliques et parallèles 10, 11 montées à rotation dans le cadre 3 transversalement aux longerons 6 de celui-ci et accouplées à l'arbre moteur 7 de façon à être conjointement entraînés en rotation dans le même sens ; et deux paires d'éléments formant came 12 ; 13 solidaires respectivement des deux barres rotatives 10 ; 11 et situés en dessous de la pièce rigide 9 de façon à déplacer celle-ci perpendiculairement aux barres rotatives 10, 11 lorsqu'entraînées conjointement par l'arbre moteur 7. Chaque élément formant came 12, 13 est réalisé à partir d'une plaque métallique fixée perpendiculairement à la barre rotative de support correspondante 10, 11. Chaque barre 10, 11 a chacune de ses parties d'extrémité tubulaire montée tournante sur un axe cylindrique 14 fixé perpendiculairement au longeron correspondant 6, par exemple par une vis de fixation 15.These mechanical means comprise two rigid metallic and parallel bars 10, 11 rotatably mounted in the frame 3 transversely to the side members 6 thereof and coupled to the motor shaft 7 so as to be jointly driven in rotation in the same direction; and two pairs of cam members 12; 13 secured respectively to the two rotary bars 10; 11 and located below the rigid part 9 so as to move the latter perpendicular to the rotary bars 10, 11 when jointly driven by the drive shaft 7. Each cam element 12, 13 is produced from a plate metal fixed perpendicularly to the corresponding rotary support bar 10, 11. Each bar 10, 11 has each of its tubular end parts rotatably mounted on a cylindrical axis 14 fixed perpendicular to the corresponding spar 6, for example by a fixing screw 15 .

Les moyens d'accouplement des barres rotatives 10, 11 à l'arbre moteur 7 comprennent deux paires de biellettes 15, 16 comprenant chacune une biellette 17 de jumelage des deux barres 10, 11 et reliées à ces barres par l'intermédiaire de deux bras de levier 18 et une biellette 19 de liaison de la barre rotative 10 à l'arbre moteur 7 par l'intermédiaire d'un bras de levier 20 solidaire de l'arbre moteur 7. Chaque biellette 19 est reliée à la barre rotative 10 par le bras de levier 18 de liaison de la barre 10 à la biellette 17. Comme représenté en figure 7, chaque axe d'articulation 21 reliant un bras de levier 20 à la biellette correspondante 19 est logé dans une lumière ou trou oblong 22 réalisée à l'extrémité de la biellette 19 et permettant au moteur électrique 5, lorsque la pièce rigide en forme de plaque 9 est en position basse, d'avoir suffisamment de puissance pour soulever la pièce rigide 9. Les trous oblongs 22 introduisent un retard dans la levée de la plaque 9 et permettant de ne pas augmenter trop rapidement la fermeté de la zone d'assise si on ne lève que légèrement la tête et de ne pas surcharger le moteur pendant la phase de début de levée de la tête ou du torse, phase où le moteur est le plus sollicité du point de vue puissance.The means for coupling the rotary bars 10, 11 to the drive shaft 7 comprise two pairs of links 15, 16 each comprising a link 17 for pairing the two bars 10, 11 and connected to these bars by means of two arms lever 18 and a connecting rod 19 for connecting the rotary bar 10 to the motor shaft 7 by means of a lever arm 20 integral with the motor shaft 7. Each link 19 is connected to the rotary bar 10 by the lever arm 18 connecting the bar 10 to the link 17. As shown in FIG. 7, each articulation axis 21 connecting a lever arm 20 to the corresponding link 19 is housed in a slot or oblong hole 22 made at the end of the connecting rod 19 and allowing the electric motor 5, when the rigid plate-shaped part 9 is in the low position, to have sufficient power to lift the rigid part 9. The oblong holes 22 introduce a delay in the lifting of the plate 9 and making it possible not to increase the firmness of the seat area too quickly if the head is only raised slightly and not to overload the motor during the start of head or torso lift phase, phase where the motor is most requested d u power point of view.

Le guidage du déplacement de la pièce rigide 9 suivant la direction perpendiculaire au plan passant par les barres rotatives 10, 11 s'effectue par deux paires de pattes de guidage 23, 24 fixées sous la pièce rigide 9 perpendiculairement à celle-ci, par exemple par l'intermédiaire de vis de fixation, et engagées respectivement sur les deux barres rotatives 10, 11 qui traversent des trous oblongs 25, 26 respectivement des pattes de guidage 23, 24 permettant à celles-ci de coulisser perpendiculairement aux barres respectives 10, 11.The movement of the rigid part 9 is guided in the direction perpendicular to the plane passing through the rotary bars 10, 11 by two pairs of guide tabs 23, 24 fixed under the rigid part 9 perpendicularly to it, for example by means of fixing screws, and engaged respectively on the two rotary bars 10, 11 which pass through oblong holes 25, 26 respectively of the guide tabs 23, 24 allowing these to slide perpendicular to the respective bars 10, 11 .

Les paires de biellettes 15, 16, les paires d'éléments formant came 12, 13 et les paires de pattes de guidage 23, 24 sont disposées symétriquement à l'axe longitudinal du cadre 3 du sommier 1.The pairs of rods 15, 16, the pairs of cam elements 12, 13 and the pairs of guide tabs 23, 24 are arranged symmetrically to the longitudinal axis of the frame 3 of the bed base 1.

Le fonctionnement du dispositif de l'invention ressort déjà de la description qui en a été faite ci-dessus et va être maintenant expliqué.The operation of the device of the invention already appears from the description which has been made above and will now be explained.

Lorsque l'utilisateur souhaite occuper une position assise sur le sommier 1, il active le moteur électrique 5 de façon que l'arbre moteur 7 entraîne les deux bras de levier 20 dans le sens des aiguilles d'une montre par rapport à la figure 2. Chaque bras de levier 20 pousse alors la biellette correspondante 19 vers la droite par rapport à la figure 2 de façon à entraîner simultanément en rotation, par la biellette 17 et les bras 18, les deux barres 10, 11 dans le sens anti-horaire. Les éléments formant came 12, 13 sont de la sorte entraînés en rotation simultanément également dans le sens anti-horaire comme indiqué par les flèches en figure 4 et permettent le déplacement vertical vers le haut de la pièce rigide en forme de plaque 9 en synchronisme avec le pivotement de la partie relevable 4 vers sa position relevée choisie. La descente de la pièce rigide en forme de plaque 9 s'effectue en commandant le moteur électrique 5 de façon à déplacer les éléments formant came 12, 13 dans le sens inverse à celui indiqué par les flèches de la figure 4, le mouvement de descente de la pièce rigide 9 s'effectuant par gravité ou sous le poids de l'utilisateur. On notera que le poids de l'utilisateur, qui est maximal lorsque celui-ci est assis avec la partie 4 relevée en position maximum, est efficacement supporté pratiquement par les deux barres rigides métalliques 10, 11. De plus, en position haute maximum de la pièce rigide 9, les lattes 2 de la zone d'assise sont pratiquement en contact avec celle-ci qui est de préférence capitonnée ou rembourrée.When the user wishes to occupy a sitting position on the bed base 1, he activates the electric motor 5 so that the motor shaft 7 drives the two lever arms 20 clockwise with respect to FIG. 2 Each lever arm 20 then pushes the corresponding link 19 to the right with respect to FIG. 2 so as to simultaneously rotate, by the link 17 and the arms 18, the two bars 10, 11 counterclockwise . The cam elements 12, 13 are thus rotated simultaneously also in the counterclockwise direction as indicated by the arrows in FIG. 4 and allow the vertical movement upwards of the rigid plate-shaped part 9 in synchronism with the pivoting of the lifting part 4 towards its chosen raised position. The lowering of the rigid plate-shaped part 9 is carried out by controlling the electric motor 5 so as to move the cam elements 12, 13 in the opposite direction to that indicated by the arrows in FIG. 4, the lowering movement of the rigid part 9 being effected by gravity or under the weight of the user. It will be noted that the weight of the user, which is maximum when the latter is seated with the part 4 raised in the maximum position, is effectively supported practically by the two rigid metal bars 10, 11. In addition, in the maximum position maximum the rigid part 9, the slats 2 of the seating area are practically in contact with the latter which is preferably padded or padded.

L'invention a été décrite en référence à un sommier à moteur électrique de commande de pivotement de la partie relevable 4, mais il est bien entendu qu'elle s'applique également pour un sommier du type à partie relevable formant dossier manoeuvrée manuellement. De plus, on pourrait envisager de déplacer la pièce rigide en forme de plaque de changement de fermeté de la zone d'assise du sommier en manoeuvrant, par un mécanisme à bras de levier, les paires de biellettes 15, 16 indépendamment du pivotement de la partie relevable 4.The invention has been described with reference to a bed base with an electric motor for pivoting control of the lifting part 4, but it is understood that it also applies to a bed base of the type with lifting part forming a manually operated backrest. In addition, one could consider moving the rigid piece in the form of a firmness change plate from the seat area of the bed base by maneuvering, by a lever arm mechanism, the pairs of rods 15, 16 independently of the pivoting of the lifting part 4.

Le mouvement de la pièce rigide en forme de plaque peut également être commandé par un moteur électrique indépendant éventuellement synchronisé avec le moteur de relevage de la partie relevable formant dossier.The movement of the rigid plate-shaped part can also be controlled by an independent electric motor possibly synchronized with the lifting motor of the lifting part forming the backrest.

L'invention permet ainsi d'obtenir une zone fessière du sommier souple et confortable en position couchée et une zone fessière ferme par changement de fermeté en position assise.The invention thus makes it possible to obtain a gluteal region of the flexible and comfortable bed base in the supine position and a firm gluteal region by change of firmness in the seated position.

Claims (12)

Dispositif permettant de changer la fermeté de la zone d'assise d'un sommier (1) à lattes (2) définie par une partie relevable formant dossier (4) du sommier (1), caractérisé en ce qu'il comprend une pièce rigide en forme de plaque (9) disposée sous les lattes (2) de la zone d'assise et déplaçable relativement au cadre (3) du sommier (1) entre une position inférieure à laquelle les lattes (2) de la zone d'assise peuvent se débattre librement et une position supérieure limitant le débattement des lattes (2) à une valeur correspondant à une fermeté maximum de la zone d'assise.Device for changing the firmness of the seat area of a slatted base (1) (2) defined by a lifting part forming a backrest (4) of the base (1), characterized in that it comprises a rigid part in the form of a plate (9) disposed under the slats (2) of the seat area and movable relative to the frame (3) of the bed base (1) between a position lower than that of the slats (2) of the seat area can move freely and a higher position limiting the travel of the slats (2) to a value corresponding to a maximum firmness of the seat area. Dispositif selon la revendication 1, caractérisé en ce que la pièce rigide en forme de plaque (9) est déplacée suivant une direction perpendiculaire au plan du cadre (3) du sommier (1) en synchronisme avec le pivotement de la partie relevable formant dossier (4) de façon que cette dernière occupe sa position inférieure en position rangée dans le cadre (3) du sommier (1) de la partie relevable (4) et sa position supérieure en position relevée maximum de la partie relevable (4).Device according to claim 1, characterized in that the rigid plate-shaped part (9) is moved in a direction perpendicular to the plane of the frame (3) of the bed base (1) in synchronism with the pivoting of the lifting part forming the backrest ( 4) so that the latter occupies its lower position in the stowed position in the frame (3) of the bed base (1) of the lifting part (4) and its upper position in the maximum raised position of the lifting part (4). Dispositif selon la revendication 2, selon lequel le sommier (1) comprend un moteur électrique (5) de commande du pivotement de la partie relevable formant dossier (4), caractérisé en ce que la pièce rigide en forme de plaque (9) est à déplacement commandé par le moteur électrique (5) par l'intermédiaire de moyens mécaniques de déplacement.Device according to claim 2, according to which the base (1) comprises an electric motor (5) for controlling the pivoting of the lifting part forming the backrest (4), characterized in that the rigid plate-shaped part (9) is at displacement controlled by the electric motor (5) by means of mechanical displacement means. Dispositif selon la revendication 3, caractérisé en ce que les moyens mécaniques de déplacement de la pièce rigide en forme de plaque (9) comprennent deux barres parallèles (10, 11) montées à rotation dans le cadre (3) du sommier (1) transversalement à celui-ci et accouplées à l'arbre moteur (7) du moteur électrique (5) de façon à être conjointement entraînées en rotation ; et au moins deux éléments formant came (12 ; 13) solidaires respectivement des deux barres rotatives (10 ; 11) et situés en dessous de la pièce rigide en forme de plaque (9) de façon à déplacer celle-ci perpendiculairement aux barres rotatives (10, 11) lorsqu'entrainées conjointement par l'arbre moteur (7).Device according to claim 3, characterized in that the mechanical means for moving the rigid plate-shaped part (9) comprise two bars parallels (10, 11) rotatably mounted in the frame (3) of the bed base (1) transversely thereto and coupled to the motor shaft (7) of the electric motor (5) so as to be jointly driven in rotation; and at least two cam elements (12; 13) respectively secured to the two rotary bars (10; 11) and located below the rigid plate-shaped part (9) so as to move the latter perpendicular to the rotary bars ( 10, 11) when jointly driven by the motor shaft (7). Dispositif selon la revendication 4, caractérisé en ce que les moyens d'accouplement des barres rotatives (10, 11) à l'arbre moteur (7) comprennent deux paires de biellettes (15, 16) comprenant chacune une biellette (17) de liaison des deux barres rotatives (10, 11) et une biellette (19) de liaison de l'une (10) des barres rotatives (10, 11) à l'arbre moteur (7) par l'intermédiaire d'un bras de levier (20) solidaire de l'arbre moteur (7).Device according to claim 4, characterized in that the means for coupling the rotary bars (10, 11) to the motor shaft (7) comprise two pairs of rods (15, 16) each comprising a connecting rod (17) two rotary bars (10, 11) and a link (19) connecting one (10) of the rotary bars (10, 11) to the motor shaft (7) via a lever arm (20) integral with the motor shaft (7). Dispositif selon la revendication 5, caractérisé en ce que chaque biellette de liaison (17) des deux barres rotatives (10, 11) est reliée à celles-ci par l'intermédiaire de bras de levier (18).Device according to claim 5, characterized in that each connecting rod (17) of the two rotary bars (10, 11) is connected to these by means of lever arms (18). Dispositif selon la revendication 5 ou 6, caractérisé en ce que chaque axe d'articulation (21) reliant un bras de levier (20) à la biellette correspondante (19) est logé dans un trou oblong (22) de la biellette (19).Device according to claim 5 or 6, characterized in that each articulation axis (21) connecting a lever arm (20) to the corresponding link (19) is housed in an oblong hole (22) of the link (19) . Dispositif selon l'une des revendications 4 à 7, caractérisé en ce que chaque barre rotative (10 ; 11) porte deux éléments formant came (12 ; 13).Device according to one of claims 4 to 7, characterized in that each rotary bar (10; 11) carries two cam elements (12; 13). Dispositif selon l'une des revendications 4 à 8, caractérisé en ce que chaque élément formant came (12 ; 13) est réalisé à partir d'une plaque métallique fixée perpendiculairement à la barre rotative de support correspondante (10 ; 11).Device according to one of Claims 4 to 8, characterized in that each cam element (12; 13) is produced from a metal plate fixed perpendicular to the corresponding rotary support bar (10; 11). Dispositif selon l'une des revendications 4 à 9, caractérisé en ce que la pièce rigide en forme de plaque (9) est à déplacement guidé relativement aux barres rotatives (10, 11) par deux paires de pattes de guidage (23, 24) solidaires de la pièce rigide (9) perpendiculairement à celle-ci et engagées respectivement sur les deux barres rotatives (10, 11) traversant des trous oblongs (25 ; 26) des pattes de guidage (23 ; 24).Device according to one of Claims 4 to 9, characterized in that the rigid plate-shaped part (9) is guided movement relative to the rotary bars (10, 11) by two pairs of guide tabs (23, 24) integral with the rigid part (9) perpendicular thereto and engaged respectively on the two rotary bars (10, 11) passing through oblong holes (25; 26) of the guide tabs (23; 24). Dispositif selon la revendication 10, caractérisé en ce que les paires de biellettes (15, 16), les paires d'éléments formant came (12, 13) et les paires de pattes de guidage (23, 24) sont disposées symétriquement à l'axe longitudinal du cadre (3) du sommier (1).Device according to claim 10, characterized in that the pairs of rods (15, 16), the pairs of cam elements (12, 13) and the pairs of guide tabs (23, 24) are arranged symmetrically to the longitudinal axis of the frame (3) of the bed base (1). Dispositif selon l'une des revendications précédentes, caractérisé en ce que la pièce rigide (9) est une plaque métallique rectangulaire capitonnée ou rembourrée.Device according to one of the preceding claims, characterized in that the rigid part (9) is a rectangular metallic plate padded or padded.
EP19960400096 1995-01-16 1996-01-15 Slatted bed-base Expired - Lifetime EP0721754B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9500405 1995-01-16
FR9500405A FR2729281A1 (en) 1995-01-16 1995-01-16 DEVICE FOR CHANGING THE FERMETE FROM THE SEATING AREA OF A SOMMIER A LATES

Publications (2)

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EP0721754A1 true EP0721754A1 (en) 1996-07-17
EP0721754B1 EP0721754B1 (en) 2000-04-12

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EP19960400096 Expired - Lifetime EP0721754B1 (en) 1995-01-16 1996-01-15 Slatted bed-base

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EP (1) EP0721754B1 (en)
DE (1) DE69607658T2 (en)
ES (1) ES2147348T3 (en)
FR (1) FR2729281A1 (en)

Cited By (9)

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Publication number Priority date Publication date Assignee Title
WO2001045536A3 (en) * 1999-12-23 2001-12-27 Cimosys Ag Motor-driven, adjustable supporting device for the upholstery of seating and/or reclining furniture, for example of a mattress or of a bed
US6742205B2 (en) 1999-12-23 2004-06-01 Cimosys Ag Adjustable padding device for a piece of furniture used for sitting and/or lying upon
US6763536B2 (en) 2000-04-11 2004-07-20 Cimosys Ag Motor adjustable support device for the upholstery of a piece of furniture that is used for sitting and/or laying upon
US6961971B2 (en) 1999-12-23 2005-11-08 Cimosys Ag Motor adjustable support device for the upholstery of a seat and/or reclining furniture
US7198325B2 (en) 2003-01-15 2007-04-03 Deon Ag Adjustable piece of seating furniture
US7386901B2 (en) 2003-06-05 2008-06-17 Cimosys Ag Modular system for assembling a motorized adjustable support apparatus for the upholstery of furniture for sitting and/or lying
US7484257B2 (en) 2002-07-10 2009-02-03 Cimosys Ag Electromechanical furniture drive mechanism
CN104433495A (en) * 2013-09-19 2015-03-25 La-Z-男孩有限公司 Furniture member power mechanism with selectable lift movement and zero gravity position
WO2022156563A1 (en) * 2021-01-19 2022-07-28 麒盛科技股份有限公司 Electric bed having structure for leaning against wall

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
DE202011051702U1 (en) * 2011-10-20 2012-10-26 Froli Kunststoffwerk Heinrich Fromme Ohg Framework for a lying surface of a piece of furniture

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US4589151A (en) * 1983-07-08 1986-05-20 Behrens Robert S Slatted bed system

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US2485199A (en) * 1945-11-10 1949-10-18 Holtzman Abraham Max Resilient unit for bedsprings, chairs, and the like
US4589151A (en) * 1983-07-08 1986-05-20 Behrens Robert S Slatted bed system

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001045536A3 (en) * 1999-12-23 2001-12-27 Cimosys Ag Motor-driven, adjustable supporting device for the upholstery of seating and/or reclining furniture, for example of a mattress or of a bed
US6742205B2 (en) 1999-12-23 2004-06-01 Cimosys Ag Adjustable padding device for a piece of furniture used for sitting and/or lying upon
US6754922B2 (en) 1999-12-23 2004-06-29 Cimosys Ag Motor-driven, adjustable supporting device for the upholstery of seating and/or reclining furniture, for example of a mattress or a bed
EP1410743A3 (en) * 1999-12-23 2004-12-15 Cimosys AG Motor-driven, adjustable supporting device for the upholstery of seating and/or reclining furniture, for example of a mattress or of a bed
US6961971B2 (en) 1999-12-23 2005-11-08 Cimosys Ag Motor adjustable support device for the upholstery of a seat and/or reclining furniture
US6763536B2 (en) 2000-04-11 2004-07-20 Cimosys Ag Motor adjustable support device for the upholstery of a piece of furniture that is used for sitting and/or laying upon
US7484257B2 (en) 2002-07-10 2009-02-03 Cimosys Ag Electromechanical furniture drive mechanism
US7198325B2 (en) 2003-01-15 2007-04-03 Deon Ag Adjustable piece of seating furniture
US7386901B2 (en) 2003-06-05 2008-06-17 Cimosys Ag Modular system for assembling a motorized adjustable support apparatus for the upholstery of furniture for sitting and/or lying
CN104433495A (en) * 2013-09-19 2015-03-25 La-Z-男孩有限公司 Furniture member power mechanism with selectable lift movement and zero gravity position
CN104433495B (en) * 2013-09-19 2018-04-27 La-Z-男孩有限公司 Furniture actuating unit with alternative lifter motion and zero-g position
WO2022156563A1 (en) * 2021-01-19 2022-07-28 麒盛科技股份有限公司 Electric bed having structure for leaning against wall

Also Published As

Publication number Publication date
DE69607658D1 (en) 2000-05-18
DE69607658T2 (en) 2000-11-23
ES2147348T3 (en) 2000-09-01
FR2729281B1 (en) 1997-02-28
EP0721754B1 (en) 2000-04-12
FR2729281A1 (en) 1996-07-19

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