EP3669706B1 - Flexible element with adjustable height - Google Patents

Flexible element with adjustable height Download PDF

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Publication number
EP3669706B1
EP3669706B1 EP19219029.6A EP19219029A EP3669706B1 EP 3669706 B1 EP3669706 B1 EP 3669706B1 EP 19219029 A EP19219029 A EP 19219029A EP 3669706 B1 EP3669706 B1 EP 3669706B1
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EP
European Patent Office
Prior art keywords
adjustable
height
springs
central axis
supple
Prior art date
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Active
Application number
EP19219029.6A
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German (de)
French (fr)
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EP3669706A1 (en
Inventor
Géraud Cailley
Pascal Lobry
Jacques Lobry
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tournadre Standard Gum SA
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Tournadre Standard Gum SA
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Publication date
Application filed by Tournadre Standard Gum SA filed Critical Tournadre Standard Gum SA
Priority to PL19219029T priority Critical patent/PL3669706T3/en
Publication of EP3669706A1 publication Critical patent/EP3669706A1/en
Application granted granted Critical
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Classifications

    • 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
    • A47C23/002—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases with separate resilient support elements, e.g. elastomeric springs arranged in a two-dimensional matrix pattern
    • 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
    • A47C23/04—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using springs in compression, e.g. coiled
    • A47C23/043—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using springs in compression, e.g. coiled using wound springs
    • A47C23/0435—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using springs in compression, e.g. coiled using wound springs of adjustable resilience
    • 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
    • A47C23/04—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using springs in compression, e.g. coiled
    • A47C23/05—Frames therefor; Connecting the springs to the frame ; Interconnection of springs, e.g. in spring units
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/04—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with spring inlays
    • A47C27/06—Spring inlays
    • A47C27/061—Spring inlays of adjustable resiliency
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/34—Seat parts with springs in compression, e.g. coiled
    • A47C7/345—Seat parts with springs in compression, e.g. coiled of adjustable resilience
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/34—Seat parts with springs in compression, e.g. coiled
    • A47C7/347—Seat parts with springs in compression, e.g. coiled with means for connecting springs to each other or to seat frame

Definitions

  • the present disclosure relates to the field of furniture and more particularly to a flexible element with adjustable height for sleeping and / or seat furniture.
  • “sleeping and / or sitting furniture” is meant not only furniture intended for domestic use or in collective installations, but also, for example, seats, beds, berths, and / or stretchers intended for means of transport.
  • the present disclosure aims to remedy the aforementioned drawbacks, by proposing a flexible element with adjustable height for a sitting and / or sleeping piece of furniture, with a simple structure and limited bulk.
  • the flexible element may comprise one or more adjustable springs each configured to change in height along a central axis under the effect of a radial stress relative to the central axis, and a rotating part comprising one or more rails each extending over an angular sector around the central axis, in a plane perpendicular to the central axis, from a first end to a second end further from the central axis than the first end, each rail cooperating, in a radial direction relative to the central axis, with a adjustable spring corresponding among the one or more adjustable springs, and the rotating part being able to rotate, around the central axis, so as to exert, through each rail, said radial stress on the corresponding adjustable spring, to vary the adjustable spring height.
  • Each adjustable spring can in particular be a helical spring, although other shapes can also be envisaged.
  • the shape of the rails and the configuration of the adjustable springs it is possible to vary their height along the central axis, and therefore also their stiffness, by rotating the rotating part around the central axis.
  • the adjustable springs may include one or more pairs of adjustable springs, each pair of adjustable springs comprising an upper adjustable spring and a lower adjustable spring whose ends are connected by a corresponding hinge with a pivot axis orthogonal to the central axis.
  • each rail can pass through a space defined by a pair of jaws associated with the corresponding articulation.
  • the upper and lower adjustable springs can thus be arranged in series and be jointly adjustable.
  • the flexible element may further include one or more internal springs coaxial with the adjustable springs.
  • the internal springs can be helical, comprise at least two springs arranged in series and / or at least two springs arranged in parallel. However, other arrangements and / or alternative forms are also possible.
  • the rotating part may in particular comprise a hub supported to rotate around the central axis by a central body integral with the internal springs, the rails being integral with the hub.
  • a second aspect of the present disclosure relates to an assembly comprising a plurality of flexible elements with adjustable height, such as the aforementioned flexible element, oriented in parallel.
  • Such an assembly can therefore provide a bearing surface whose thickness and firmness will be adjustable through the height and stiffness of the flexible elements. It is conceivable that the rotating parts of the flexible elements of this assembly are coupled in rotation, so as to allow simultaneous adjustment of the height of several flexible elements of the assembly.
  • a third aspect of the present disclosure relates to a sleeping or sitting piece of furniture comprising one or more assemblies such as the aforementioned assembly. These sets can be integrated, for example, in a mattress, box spring and / or cushion forming part of the furniture.
  • a fourth aspect of the present disclosure relates to a method of using a flexible height-adjustable element such as the aforementioned element, comprising at least one step of rotating the rotating part between the locking and unlocking positions to adjust the stiffness. flexible element with adjustable height.
  • This flexible element 10 can comprise several springs oriented along this central axis Z.
  • the flexible element 10 can comprise one or more internal springs 11.
  • these internal springs 11 may in particular be coil springs arranged in pairs, each pair of internal springs 11 comprising two springs arranged in parallel, and the pairs being arranged in series between an upper support 12 and a lower support 13 at the ends of the flexible element 10 along the central axis Z, and connected by a central body 14.
  • the internal springs could possibly be of different number, be differently arranged, or even take an entirely different form, such as for example foam springs.
  • the flexible element 10 may further include one or more adjustable springs. These adjustable springs can also be helical springs, arranged coaxial with the internal springs 11 radially outside them with respect to the central axis X. Although, in the example illustrated in the figures 1A to 3B , the flexible element 10 comprises two pairs of adjustable springs, a different number of adjustable springs, equal to or greater than one, is also possible. As illustrated, the adjustable springs can in particular be arranged in pairs, and each pair can comprise an upper adjustable spring 15 and a lower adjustable spring 16, connected together, at ends 15a, 16a, by a corresponding articulation 17 with an axis of pivoting X orthogonal to the central axis Z and offset radially with respect to the latter. Opposite ends 15b and 16b of the upper 15 and lower 16 adjustable springs may be integral with the upper support 12 and the lower support 13 of the flexible member 10, respectively.
  • the flexible element 10 may comprise a rotating part 20 capable of rotating about the central axis Z.
  • this rotating part 20 may include a hub 21 engaged around the central body 14 so as to be able to rotate around the central axis Z relative to this central body 14, while restricting their relative movement in the direction of the central axis Z.
  • the rotating part 20 may comprise one or more rails 23, integral with the hub 21, each extending between two opposite ends 23a, 23b, in a plane perpendicular to the central axis Z, over an angular sector around of the central axis Z.
  • each rail 23 from the central axis Z can vary gradually from a first end 23a closer to the central axis Z, to a second end 23c further from the central axis Z.
  • the rotating part 20 may include connections for its rotation actuation.
  • each corresponding articulation 17 may comprise one or more pairs of jaws 18, each pair of jaws 18 defining a space 19 receiving one of the rails 23. As illustrated, this space 19 defined by the jaws 18 can be closed all around the rail 23.
  • the rotating part 20 can thus rotate between an extended position, illustrated in the figures 1A , 2A and 3A , and a contraction position, shown on the figures 1C , 2C and 3C .
  • the corresponding joints 17 can be retained by the ends 23a of the rails 23 with their pivot axes X at a minimum radial distance ra from the central axis Z
  • the joints 17 corresponding can be retained by the ends 23c of the rails 23 with their pivot axes at a maximum radial distance rc from the central axis Z.
  • each rail 23 relative to the central axis Z can vary gradually between its first and second ends 23a, 23c, it is thus also possible to gradually vary the radial distance of the corresponding articulations 17 relative to the central axis Z by rotation of the rotating part 20 between its positions of extension and contraction, in passing through intermediate positions, such as the one illustrated on the figures 1B , 2B and 3B , with the pivot axes X of the joints 17 at an intermediate radial distance rb from the central axis Z.
  • the rotation of the rotating part 20 between these two extreme positions can also make it possible to gradually vary the height of the flexible element 10 between the maximum height ha of the figure 2A , and the minimum height hc of the figure 2C , passing through the intermediate height hb of the figure 2B .
  • the variation in the height of the flexible element 10, by varying its deformation stroke can also make it possible to vary its stiffness in compression along the central axis Z.
  • the flexible element 10 can be significantly stiffer with the intermediate height hb of the figure 2B that with the maximum height ha of the figure 2A , and even steeper with the minimum height hc of the figure 2C . This stiffness can therefore also be made to vary gradually by rotating the rotating part between the positions of extension and contraction.
  • Each of the components of the flexible element 10 may be made of an organic polymer material, and produced in particular by injection molding. As shown on figs. 5 to 7 , several similar flexible elements 10 can be combined into a single set 100 within a sleeping and / or sitting piece of furniture, such as for example the bed 200 of the bed. figure 6 or the sofa 300 from the figure 7 .
  • the central Z axes of the flexible elements 10 can be oriented in parallel, and the rotating parts 20 can be coupled in rotation, for example through the connections 24, so as to allow the simultaneous adjustment of the stiffness of several elements.
  • flexible 10 of the assembly 100 The assembly 100 can be integrated into a mattress, box spring or cushion. It is also conceivable to integrate several sets 100, with separately adjustable stiffness, in a single mattress, box spring or cushion, so as to allow the user to adjust the stiffness in separate zones for better comfort.

Description

Domaine TechniqueTechnical area

La présente divulgation concerne le domaine de l'ameublement et plus particulièrement un élément souple à hauteur réglable pour meuble de couchage et/ou d'assise. Par « meuble de couchage et/ou d'assisse » l'on entend non seulement des meubles destinés à l'usage domestique ou dans des installations collectives, mais aussi, par exemple, les sièges, lits, couchettes, et/ou civières destinés aux moyens de transport.The present disclosure relates to the field of furniture and more particularly to a flexible element with adjustable height for sleeping and / or seat furniture. By "sleeping and / or sitting furniture" is meant not only furniture intended for domestic use or in collective installations, but also, for example, seats, beds, berths, and / or stretchers intended for means of transport.

Technique antérieurePrior art

Afin de rendre une surface d'assise, de dossier ou de couchage adaptable aux préférences et à l'anatomie de différents utilisateurs, des ensembles, tels que des matelas ou des sommiers, avec des éléments souples à raideur réglable ont été précédemment divulgués, par exemple dans EP3400841 A1 , EP3400842 A1 , EP 1 386 564 A1 , EP 1 155 643 A2 , WO 2008/015235 , WO 96/27312 , US 4,667,357 ou DE 10 2008 050 108 A1 . Typiquement, la raideur des éléments y est réglée avec des restrictions à leur déformation mécanique. Pour cela, toutefois, les mécanismes proposés présentent une importante complexité et/ou encombrement.In order to make a seating, back or sleeping surface adaptable to the preferences and anatomy of different users, sets, such as mattresses or box springs, with flexible elements with adjustable stiffness have been previously disclosed, for example example in EP3400841 A1 , EP3400842 A1 , EP 1 386 564 A1 , EP 1 155 643 A2 , WO 2008/015235 , WO 96/27312 , US 4,667,357 Where DE 10 2008 050 108 A1 . Typically, the stiffness of the elements is regulated there with restrictions on their mechanical deformation. For this, however, the mechanisms proposed are very complex and / or bulky.

Exposé de l'inventionDisclosure of the invention

La présente divulgation vise à remédier aux inconvénients susmentionnés, en proposant un élément souple à hauteur réglable pour meuble d'assise et/ou de couchage, avec une structure simple et un encombrement limité.The present disclosure aims to remedy the aforementioned drawbacks, by proposing a flexible element with adjustable height for a sitting and / or sleeping piece of furniture, with a simple structure and limited bulk.

Pour atteindre ce but, suivant un premier aspect de cette divulgation, l'élément souple peut comprendre un ou plusieurs ressorts réglables configurés chacun pour changer en hauteur suivant un axe central sous effet d'une contrainte radiale par rapport à l'axe central, et une pièce rotative comportant un ou plusieurs rails s'étendant chacun sur un secteur angulaire autour de l'axe central, dans un plan perpendiculaire à l'axe central, d'une première extrémité à une deuxième extrémité plus éloignée de l'axe central que la première extrémité, chaque rail coopérant, en direction radiale par rapport à l'axe central, avec un ressort réglable correspondant parmi les un ou plusieurs ressorts réglables, et la pièce rotative étant apte à tourner, autour de l'axe central, de manière à exercer, à travers chaque rail, ladite contrainte radiale sur le ressort réglable correspondant, pour faire varier la hauteur des ressorts réglables. Chaque ressort réglable peut notamment être un ressort hélicoïdal, quoique d'autres formes soient également envisageables.To achieve this goal, according to a first aspect of this disclosure, the flexible element may comprise one or more adjustable springs each configured to change in height along a central axis under the effect of a radial stress relative to the central axis, and a rotating part comprising one or more rails each extending over an angular sector around the central axis, in a plane perpendicular to the central axis, from a first end to a second end further from the central axis than the first end, each rail cooperating, in a radial direction relative to the central axis, with a adjustable spring corresponding among the one or more adjustable springs, and the rotating part being able to rotate, around the central axis, so as to exert, through each rail, said radial stress on the corresponding adjustable spring, to vary the adjustable spring height. Each adjustable spring can in particular be a helical spring, although other shapes can also be envisaged.

Grâce à la forme des rails et à la configuration des ressorts réglables, il est possible de faire varier leur hauteur suivant l'axe central, et donc aussi leur raideur, par rotation de la pièce rotative autour de l'axe central.Thanks to the shape of the rails and the configuration of the adjustable springs, it is possible to vary their height along the central axis, and therefore also their stiffness, by rotating the rotating part around the central axis.

Les ressorts réglables peuvent comprendre une ou plusieurs paires de ressorts réglables, chaque paire de ressorts réglables comprenant un ressort réglable supérieur et un ressort réglable inférieur dont des extrémités sont reliées par une articulation correspondante avec un axe de pivotement orthogonal à l'axe central. En particulier, chaque rail peut traverser un espace défini par une paire de mâchoires associée à l'articulation correspondante. Les ressorts réglables supérieur et inférieur peuvent ainsi être agencés en série et être conjointement réglables.The adjustable springs may include one or more pairs of adjustable springs, each pair of adjustable springs comprising an upper adjustable spring and a lower adjustable spring whose ends are connected by a corresponding hinge with a pivot axis orthogonal to the central axis. In particular, each rail can pass through a space defined by a pair of jaws associated with the corresponding articulation. The upper and lower adjustable springs can thus be arranged in series and be jointly adjustable.

L'élément souple peut comporter en outre un ou plusieurs ressorts internes coaxiaux des ressorts réglables. Les ressorts internes peuvent être hélicoïdaux, comprendre au moins deux ressorts disposés en série et/ou au moins deux ressorts disposés en parallèle. Toutefois, d'autres arrangements et/ou formes alternatives sont également envisageables.The flexible element may further include one or more internal springs coaxial with the adjustable springs. The internal springs can be helical, comprise at least two springs arranged in series and / or at least two springs arranged in parallel. However, other arrangements and / or alternative forms are also possible.

La pièce rotative peut notamment comprend un moyeu soutenu rotatif autour de l'axe central par un corps central solidaire des ressorts internes, les rails étant solidaires du moyeu.The rotating part may in particular comprise a hub supported to rotate around the central axis by a central body integral with the internal springs, the rails being integral with the hub.

Un deuxième aspect de la présente divulgation concerne un ensemble comprenant une pluralité d'éléments souples à hauteur réglable tels que l'élément souple susmentionné, parallèlement orientés. Un tel ensemble peut donc fournir une surface d'appui dont l'épaisseur et la fermeté seront réglables à travers la hauteur et la raideur des éléments souples. Il est envisageable que les pièces rotatives des éléments souples de cet ensemble soient couplées en rotation, de manière à permettre le réglage simultané de la hauteur de plusieurs éléments souples de l'ensemble.A second aspect of the present disclosure relates to an assembly comprising a plurality of flexible elements with adjustable height, such as the aforementioned flexible element, oriented in parallel. Such an assembly can therefore provide a bearing surface whose thickness and firmness will be adjustable through the height and stiffness of the flexible elements. It is conceivable that the rotating parts of the flexible elements of this assembly are coupled in rotation, so as to allow simultaneous adjustment of the height of several flexible elements of the assembly.

Un troisième aspect de la présente divulgation concerne un meuble de couchage ou d'assise comprenant un ou plusieurs ensembles tels que l'ensemble susmentionné. Ces ensembles peuvent être intégrés, par exemple, dans un matelas, sommier et/ou coussin formant partie du meuble.A third aspect of the present disclosure relates to a sleeping or sitting piece of furniture comprising one or more assemblies such as the aforementioned assembly. These sets can be integrated, for example, in a mattress, box spring and / or cushion forming part of the furniture.

Un quatrième aspect de la présente divulgation concerne un procédé d'utilisation d'un élément souple à hauteur réglable tel que l'élément susmentionné, comprenant au moins une étape de rotation de la pièce rotative entre les positions de blocage et déblocage pour régler la raideur de l'élément souple à hauteur réglable.A fourth aspect of the present disclosure relates to a method of using a flexible height-adjustable element such as the aforementioned element, comprising at least one step of rotating the rotating part between the locking and unlocking positions to adjust the stiffness. flexible element with adjustable height.

L'invention sera bien comprise et ses avantages apparaîtront mieux, à la lecture de la description détaillée qui suit, d'un mode de réalisation représenté à titre d'exemple non limitatif. La description se réfère aux dessins annexés sur lesquels :The invention will be well understood and its advantages will appear better on reading the following detailed description of an embodiment shown by way of non-limiting example. The description refers to the accompanying drawings in which:

Brève description des dessinsBrief description of the drawings

  • [Fig. 1A] La figure 1A est une vue en perspective d'un élément souple suivant un mode de réalisation, avec une pièce rotative dans une position d'extension.[ Fig. 1A ] The figure 1A is a perspective view of a flexible element according to one embodiment, with a rotating part in an extended position.
  • [Fig. 1B] La figure 1B est une vue en perspective de l'élément souple de la figure 1A, avec la pièce rotative dans une position intermédiaire.[ Fig. 1B ] The figure 1B is a perspective view of the flexible element of the figure 1A , with the rotating part in an intermediate position.
  • [Fig. 1C] La figure 1C est une vue en perspective de l'élément souple des figures 1A et 1B, avec la pièce rotative dans une position de contraction.[ Fig. 1 C ] The figure 1C is a perspective view of the flexible element of the figures 1A and 1B , with the rotating part in a contraction position.
  • [Fig. 2A] La figure 2A est une vue latérale de l'élément souple des figures 1A à 1C, avec la pièce rotative dans la position d'extension.[ Fig. 2A ] The figure 2A is a side view of the flexible element of the figures 1A to 1C , with the rotating part in the extended position.
  • [Fig. 2B] La figure 2B est une vue latérale de l'élément souple des figures précédentes, avec la pièce rotative dans la position intermédiaire.[ Fig. 2B ] The figure 2B is a side view of the flexible element of the preceding figures, with the rotating part in the intermediate position.
  • [Fig. 2C] La figure 2C est une vue latérale de l'élément souple des figures précédentes, avec la pièce rotative dans la position de contraction.[ Fig. 2C ] The figure 2C is a side view of the flexible element of the previous figures, with the rotating part in the contraction position.
  • [Fig. 3A] La figure 3A est une vue en coupe, dans un plan perpendiculaire à un axe central, de l'élément souple des figures précédentes, avec la pièce rotative dans la position d'extension.[ Fig. 3A ] The figure 3A is a sectional view, in a plane perpendicular to a central axis, of the flexible element of the preceding figures, with the rotating part in the extended position.
  • [Fig. 3B] La figure 3B est une vue en coupe, dans un plan perpendiculaire à un axe central, de l'élément souple des figures précédentes, avec la pièce rotative dans la position intermédiaire.[ Fig. 3B ] The figure 3B is a sectional view, in a plane perpendicular to a central axis, of the flexible element of the preceding figures, with the rotating part in the intermediate position.
  • [Fig. 3C] La figure 3C est une vue en coupe, dans un plan perpendiculaire à un axe central, de l'élément souple des figures précédentes, avec la pièce rotative dans la position de contraction.[ Fig. 3C ] The figure 3C is a sectional view, in a plane perpendicular to a central axis, of the flexible element of the preceding figures, with the rotating part in the contraction position.
  • [Fig. 4] La figure 4 est une vue de détail d'une articulation de l'élément souple des figures précédentes.[ Fig. 4 ] The figure 4 is a detail view of an articulation of the flexible element of the preceding figures.
  • [Fig. 5] La figure 5 est une vue en perspective d'un ensemble de plusieurs éléments souples analogues à celui des figures précédentes.[ Fig. 5 ] The figure 5 is a perspective view of a set of several flexible elements similar to that of the previous figures.
  • [Fig. 6] La figure 6 est une vue schématique d'un lit incorporant des ensembles analogues à celui de la figure 5.[ Fig. 6 ] The figure 6 is a schematic view of a bed incorporating sets similar to that of the figure 5 .
  • [Fig. 7] La figure 7 est une vue schématique d'un sofa incorporant un ensemble analogue à celui de la figure 5.[ Fig. 7 ] The figure 7 is a schematic view of a sofa incorporating an assembly similar to that of the figure 5 .
Description des modes de réalisationDescription of the embodiments

Un élément souple 10, destiné aux meubles d'assise ou de couchage, tels que, par exemple, les lits, canapés, canapés-lits, sofas, etc., et dont la raideur en compression suivant un axe central Z est réglable, est illustré sur les figures 1A à 3C. Cet élément souple 10 peut comprendre plusieurs ressorts orientés suivant cet axe central Z. Ainsi, l'élément souple 10 peut comprendre, un ou plusieurs ressorts internes 11. Comme illustré sur les figures 1A à 3C, ces ressorts internes 11 peuvent notamment être des ressorts hélicoïdaux arrangés par paires, chaque paire de ressorts internes 11 comprenant deux ressorts agencés en parallèle, et les paires étant agencées en série entre un support supérieur 12 et un support inférieur 13 aux extrémités de l'élément souple 10 suivant l'axe central Z, et reliées par un corps central 14. Toutefois, les ressorts internes pourraient éventuellement être en nombre différent, être différemment arrangés, voire prendre une forme entièrement différente, comme par exemple des ressorts en mousse.A flexible element 10, intended for seating or sleeping furniture, such as, for example, beds, sofas, sofa beds, sofas, etc., and whose compressive stiffness along a central axis Z is adjustable, is illustrated on figures 1A to 3C . This flexible element 10 can comprise several springs oriented along this central axis Z. Thus, the flexible element 10 can comprise one or more internal springs 11. As illustrated in the figures. figures 1A to 3C , these internal springs 11 may in particular be coil springs arranged in pairs, each pair of internal springs 11 comprising two springs arranged in parallel, and the pairs being arranged in series between an upper support 12 and a lower support 13 at the ends of the flexible element 10 along the central axis Z, and connected by a central body 14. However, the internal springs could possibly be of different number, be differently arranged, or even take an entirely different form, such as for example foam springs.

L'élément souple 10 peut comprendre en outre un ou plusieurs ressorts réglables. Ces ressorts réglables peuvent aussi être des ressorts hélicoïdaux, disposés coaxiaux aux ressorts internes 11 radialement à l'extérieur de ceux-ci par rapport à l'axe central X. Bien que, dans l'exemple illustré sur les figures 1A à 3B, l'élément souple 10 comporte deux paires de ressorts réglables, un nombre différent de ressorts réglables, égal ou supérieur à un, est également envisageable. Comme illustré, les ressorts réglables peuvent notamment être arrangés par paires, et chaque paire peut comprendre un ressort réglable supérieur 15 et un ressort réglable inférieur 16, reliés entre eux, à des extrémités 15a, 16a, par une articulation 17 correspondante avec un axe de pivotement X orthogonal à l'axe central Z et décalé radialement par rapport à celui-ci. Des extrémités opposées 15b et 16b des ressorts réglables supérieur 15 et inférieur 16 peuvent être solidaires du support supérieur 12 et du support inférieur 13 de l'élément souple 10, respectivement.The flexible element 10 may further include one or more adjustable springs. These adjustable springs can also be helical springs, arranged coaxial with the internal springs 11 radially outside them with respect to the central axis X. Although, in the example illustrated in the figures 1A to 3B , the flexible element 10 comprises two pairs of adjustable springs, a different number of adjustable springs, equal to or greater than one, is also possible. As illustrated, the adjustable springs can in particular be arranged in pairs, and each pair can comprise an upper adjustable spring 15 and a lower adjustable spring 16, connected together, at ends 15a, 16a, by a corresponding articulation 17 with an axis of pivoting X orthogonal to the central axis Z and offset radially with respect to the latter. Opposite ends 15b and 16b of the upper 15 and lower 16 adjustable springs may be integral with the upper support 12 and the lower support 13 of the flexible member 10, respectively.

En outre, l'élément souple 10 peut comprendre une pièce rotative 20 apte à tourner autour de l'axe central Z. Comme illustré sur les figures 1A à 3B, cette pièce rotative 20 peut comprendre un moyeu 21 engagé autour du corps central 14 de manière à pouvoir tourner autour de l'axe central Z par rapport à ce corps central 14, tout en restreignant leur mouvement relatif dans la direction de l'axe central Z. En outre, la pièce rotative 20 peut comprendre un ou plusieurs rails 23, solidaires du moyeu 21, s'étendant chacun entre deux extrémités 23a,23b opposées, dans un plan perpendiculaire à l'axe central Z, sur un secteur angulaire autour de l'axe central Z. La distance radiale de chaque rail 23 à l'axe central Z peut varier graduellement d'une première extrémité 23a plus proche de l'axe central Z, à une deuxième extrémité 23c plus éloignée de l'axe central Z. Par ailleurs, la pièce rotative 20 peut comprendre des connexions pour son actionnement en rotation.In addition, the flexible element 10 may comprise a rotating part 20 capable of rotating about the central axis Z. As illustrated in the figures. figures 1A to 3B , this rotating part 20 may include a hub 21 engaged around the central body 14 so as to be able to rotate around the central axis Z relative to this central body 14, while restricting their relative movement in the direction of the central axis Z. In addition, the rotating part 20 may comprise one or more rails 23, integral with the hub 21, each extending between two opposite ends 23a, 23b, in a plane perpendicular to the central axis Z, over an angular sector around of the central axis Z. The radial distance of each rail 23 from the central axis Z can vary gradually from a first end 23a closer to the central axis Z, to a second end 23c further from the central axis Z. Furthermore, the rotating part 20 may include connections for its rotation actuation.

Comme illustré en détail sur la figure 4, chaque articulation 17 correspondante peut comprendre une ou plusieurs paires de mâchoires 18, chaque paire de mâchoires 18 définissant un espace 19 recevant l'un des rails 23. Comme illustré, cet espace 19 défini par les mâchoires 18 peut être fermé tout autour du rail 23.As shown in detail on the figure 4 , each corresponding articulation 17 may comprise one or more pairs of jaws 18, each pair of jaws 18 defining a space 19 receiving one of the rails 23. As illustrated, this space 19 defined by the jaws 18 can be closed all around the rail 23.

En fonctionnement, la pièce rotative 20 peut ainsi tourner entre une position d'extension, illustrée sur les figures 1A,2A et 3A, et une position de contraction, illustrée sur les figures 1C,2C et 3C. Dans la position d'extension, les articulations 17 correspondantes peuvent être retenues par les extrémités 23a des rails 23 avec leurs axes de pivotement X à une distance radiale minimale ra de l'axe central Z, tandis que dans la position de contraction, les articulations 17 correspondantes peuvent être retenues par les extrémités 23c des rails 23 avec leurs axes de pivotement à une distance radiale maximale rc de l'axe central Z. La distance radiale de chaque rail 23 par rapport à l'axe central Z pouvant varier graduellement entre ses première et deuxième extrémités 23a, 23c, il est ainsi aussi possible de faire varier graduellement la distance radiale des articulations 17 correspondantes par rapport à l'axe central Z par rotation de la pièce rotative 20 entre ses positions d'extension et de contraction, en passant par des positions intermédiaires, comme celle illustrée sur les figures 1B,2B et 3B, avec les axes de pivotement X des articulations 17 à une distance radiale intermédiaire rb de l'axe central Z.In operation, the rotating part 20 can thus rotate between an extended position, illustrated in the figures 1A , 2A and 3A , and a contraction position, shown on the figures 1C , 2C and 3C . In the extended position, the corresponding joints 17 can be retained by the ends 23a of the rails 23 with their pivot axes X at a minimum radial distance ra from the central axis Z, while in the contraction position, the joints 17 corresponding can be retained by the ends 23c of the rails 23 with their pivot axes at a maximum radial distance rc from the central axis Z. The radial distance of each rail 23 relative to the central axis Z can vary gradually between its first and second ends 23a, 23c, it is thus also possible to gradually vary the radial distance of the corresponding articulations 17 relative to the central axis Z by rotation of the rotating part 20 between its positions of extension and contraction, in passing through intermediate positions, such as the one illustrated on the figures 1B , 2B and 3B , with the pivot axes X of the joints 17 at an intermediate radial distance rb from the central axis Z.

A travers la position radiale des articulations 17, et donc des extrémités 15a, 16a correspondantes des ressorts réglables 15, 16, il est possible de faire varier leur pas et donc leur hauteur dans la direction de l'axe central Z. Ainsi, avec la pièce rotative 20 dans la position d'extension illustrée sur les figures 1A, 2A et 3A, la hauteur de chaque ressort réglable 15,16, et donc aussi la hauteur de l'élément souple 10 dans son ensemble, peuvent être maximales, tandis qu'avec la pièce rotative 20 dans la position de contraction illustrée sur les figures 1C, 2C et 3C, la hauteur de chaque ressort réglable 15,16, et donc aussi la hauteur de l'élément souple 10 dans son ensemble, peuvent être minimales. Par ailleurs, la rotation de la pièce rotative 20 entre ces deux positions extrêmes peut aussi permettre de faire varier graduellement la hauteur de l'élément souple 10 entre la hauteur maximale ha de la figure 2A, et la hauteur minimale hc de la figure 2C, en passant par la hauteur intermédiaire hb de la figure 2B.Through the radial position of the articulations 17, and therefore of the corresponding ends 15a, 16a of the adjustable springs 15, 16, it is possible to vary their pitch and therefore their height in the direction of the central axis Z. Thus, with the rotating part 20 in the extended position shown on the figures 1A , 2A and 3A , the height of each adjustable spring 15,16, and therefore also the height of the flexible element 10 as a whole, can be maximum, while with the rotating part 20 in the contraction position illustrated in the figures. figures 1C , 2C and 3C , the height of each adjustable spring 15,16, and therefore also the height of the flexible element 10 as a whole, may be minimal. Furthermore, the rotation of the rotating part 20 between these two extreme positions can also make it possible to gradually vary the height of the flexible element 10 between the maximum height ha of the figure 2A , and the minimum height hc of the figure 2C , passing through the intermediate height hb of the figure 2B .

Par ailleurs, la variation de la hauteur de l'élément souple 10, en faisant varier sa course de déformation, peut permettre aussi de faire varier sa raideur en compression suivant l'axe central Z. Ainsi, l'élément souple 10 pourra être sensiblement plus raide avec la hauteur intermédiaire hb de la figure 2B qu'avec la hauteur maximale ha de la figure 2A, et encore plus raide avec la hauteur minimale hc de la figure 2C. Cette raideur peut donc aussi être faite varier graduellement par rotation de la pièce rotative entre les positions d'extension et de contraction.Furthermore, the variation in the height of the flexible element 10, by varying its deformation stroke, can also make it possible to vary its stiffness in compression along the central axis Z. Thus, the flexible element 10 can be significantly stiffer with the intermediate height hb of the figure 2B that with the maximum height ha of the figure 2A , and even steeper with the minimum height hc of the figure 2C . This stiffness can therefore also be made to vary gradually by rotating the rotating part between the positions of extension and contraction.

Chacun des composants de l'élément souple 10 peut être en matière polymère organique, et produit notamment par moulage-injection. Comme illustré sur les figs. 5 à 7, plusieurs éléments souples 10 analogues peuvent être combinés en un seul ensemble 100 au sein d'un meuble de couchage et/ou d'assise, comme par exemple le lit 200 de la figure 6 ou le sofa 300 de la figure 7. Dans cet ensemble 100, les axes centraux Z des éléments souples 10 peuvent être parallèlement orientés, et les pièces rotatives 20 peuvent être couplées en rotation, par exemple à travers les connexions 24, de manière à permettre le réglage simultané de la raideur de plusieurs éléments souples 10 de l'ensemble 100. L'ensemble 100 peut être intégré dans un matelas, sommier ou coussin. Il est également envisageable d'intégrer plusieurs ensembles 100, à raideur réglable séparément, dans un seul matelas, sommier ou coussin, de manière à permettre à l'utilisateur de régler la raideur par zones séparées pour un meilleur confort.Each of the components of the flexible element 10 may be made of an organic polymer material, and produced in particular by injection molding. As shown on figs. 5 to 7 , several similar flexible elements 10 can be combined into a single set 100 within a sleeping and / or sitting piece of furniture, such as for example the bed 200 of the bed. figure 6 or the sofa 300 from the figure 7 . In this assembly 100, the central Z axes of the flexible elements 10 can be oriented in parallel, and the rotating parts 20 can be coupled in rotation, for example through the connections 24, so as to allow the simultaneous adjustment of the stiffness of several elements. flexible 10 of the assembly 100. The assembly 100 can be integrated into a mattress, box spring or cushion. It is also conceivable to integrate several sets 100, with separately adjustable stiffness, in a single mattress, box spring or cushion, so as to allow the user to adjust the stiffness in separate zones for better comfort.

Quoique la présente invention ait été décrite en se référant à des exemples spécifiques, il est évident que des différentes modifications et changements peuvent être effectués sur ces exemples sans sortir de la portée générale de l'invention telle que définie par les revendications. Par conséquent, la description et les dessins doivent être considérés dans un sens illustratif plutôt que restrictif.Although the present invention has been described with reference to specific examples, it is evident that various modifications and changes can be made to these examples without departing from the general scope of the invention as defined by the claims. Therefore, the description and the drawings should be taken in an illustrative rather than a restrictive sense.

Claims (12)

  1. A height-adjustable supple member (10) for lying and/or sitting furniture (200,300), comprising:
    one or more adjustable springs (15, 16), each configured to change in height along a central axis (Z) under the effect of a radial stress relative to the central axis (Z), and
    a rotary part (20) including one or more rails (23) each extending over an angular sector about the central axis (Z), in a plane perpendicular to the central axis (Z), from a first end (23a) to a second end (23c) more distant from the central axis (Z) than the first end (23b), each rail (23) cooperating, in the radial direction relative to the central axis (Z), with a corresponding adjustable spring (15, 16) among the one or more adjustable springs (15, 16), and the rotary part (20) being able to rotate, about the central axis (Z), so as to exert, through each rail (23), said radial stress on the corresponding adjustable spring (15, 16), to vary the height of the adjustable springs (15, 16).
  2. The height-adjustable supple member (10) according to claim 1, wherein each adjustable spring (15, 16) is a helical spring disposed about the central axis (Z).
  3. The height-adjustable supple member (10) according to any one of claims 1 or 2, wherein the adjustable springs (15, 16) comprise one or more pairs of adjustable springs (15, 16), each pair of adjustable springs (15, 16) comprising an upper adjustable spring (15) and a lower adjustable spring (16) whose corresponding ends (15a,16a) are connected by a hinge (17) with a pivot axis (X) orthogonal to the central axis (Z).
  4. The height-adjustable supple member (10) according to claim 3, wherein each rail (23) passes through a space (19) defined by a pair of jaws (18) associated with the corresponding hinge (17).
  5. The height-adjustable supple member (10) according to any one of claims 1 to 4, further including one or more inner springs (11) coaxial to the adjustable springs (15, 16).
  6. The height-adjustable supple member (10) according to claim 5, wherein the inner springs (11) comprise at least two springs disposed in series.
  7. The height-adjustable supple member (10) according to any one of claims 5 or 6, wherein the inner springs (11) comprise at least two springs disposed in parallel.
  8. The height-adjustable supple member (10) according to any one of claims 5 to 7, wherein the inner springs (11) are helical.
  9. The height-adjustable supple member (10) according to any one of claims 1 to 8, wherein the rotary part (20) comprises a hub (21) rotatably supported about the central axis (Z) by a central body (21) secured to the inner springs (11), the rails (23) being secured to the hub (21).
  10. An assembly (100) comprising a plurality of height-adjustable supple members (10) according to any one of claims 1 to 9, oriented in parallel.
  11. A lying or sitting furniture (200,300) comprising one or more assemblies according to claim 10.
  12. A method for using a height-adjustable supple member (10) according to any one of claims 1 to 9, comprising at least one step of rotating the rotary part (20) to adjust the stiffness of the height-adjustable supple member (10).
EP19219029.6A 2018-12-21 2019-12-20 Flexible element with adjustable height Active EP3669706B1 (en)

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PL19219029T PL3669706T3 (en) 2018-12-21 2019-12-20 Flexible element with adjustable height

Applications Claiming Priority (1)

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FR1874042A FR3090305B1 (en) 2018-12-21 2018-12-21 Flexible element with adjustable height

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EP3669706A1 EP3669706A1 (en) 2020-06-24
EP3669706B1 true EP3669706B1 (en) 2021-07-28

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US (1) US11311113B2 (en)
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ES (1) ES2895911T3 (en)
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Publication number Priority date Publication date Assignee Title
FR3066088B1 (en) * 2017-05-12 2019-07-05 Tournadre Sa Standard Gum STIFF ADJUSTER DEVICE

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1020350A (en) * 1911-05-15 1912-03-12 Charles Wing Company Spring.
US2842784A (en) * 1955-12-13 1958-07-15 Grund John Adjustable mattress springs
US4667357A (en) 1986-10-08 1987-05-26 Fortune Richard L Sleep unit having adjustable firmness
ES2124118B1 (en) 1995-03-08 1999-08-16 Martinez Rafael Martinez IMPROVEMENTS IN SPRING DEVICES APPLICABLE TO MATTRESSES, SEATS AND THE LIKE.
DE29712721U1 (en) * 1997-07-18 1998-09-10 Froli Kunststoffe Heinrich Fro Plates for upholstery on seating or lying surfaces
US6487738B1 (en) * 2000-03-20 2002-12-03 Offspring, Llc Constant restoring force support surface
DE10024530A1 (en) 2000-05-18 2001-11-22 Heidinger Florian Support device
DE20300248U1 (en) 2002-07-31 2003-09-11 Froli Kunststoffwerk Fromme H Bed frame spring has adjustable upthrust unit with arms resting on supporting curved base plate
DE50312571D1 (en) * 2003-11-18 2010-05-12 Spiroplex Gmbh Support element
DE202006012078U1 (en) 2006-08-04 2007-09-27 Froli Kunststoffwerk Heinrich Fromme Ohg Bearing element for a cushion support of sitting and lying surfaces
DE102008050108A1 (en) 2008-10-06 2010-04-08 Schwenk, Hans Ulrich, Dipl.-Ing. Spring element for laying of mattresses in under-beds, has ring provided to alternatively change height position of arms in which plates lie during springing, and/or to alternatively change stiffness of arms supporting plates
FR3066088B1 (en) * 2017-05-12 2019-07-05 Tournadre Sa Standard Gum STIFF ADJUSTER DEVICE
FR3066087B1 (en) * 2017-05-12 2019-07-05 Tournadre Sa Standard Gum ADJUSTABLE STIFFENER ELEMENT FOR SLEEP OR SEAT FURNITURE

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PL3669706T3 (en) 2022-01-10
US20200205578A1 (en) 2020-07-02
EP3669706A1 (en) 2020-06-24
FR3090305B1 (en) 2021-03-12
US11311113B2 (en) 2022-04-26
ES2895911T3 (en) 2022-02-23
FR3090305A1 (en) 2020-06-26

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