EP3780997B1 - Retractable seat for a perched position - Google Patents

Retractable seat for a perched position Download PDF

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Publication number
EP3780997B1
EP3780997B1 EP19716185.4A EP19716185A EP3780997B1 EP 3780997 B1 EP3780997 B1 EP 3780997B1 EP 19716185 A EP19716185 A EP 19716185A EP 3780997 B1 EP3780997 B1 EP 3780997B1
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EP
European Patent Office
Prior art keywords
seat
module
rotation
support leg
seat according
Prior art date
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Active
Application number
EP19716185.4A
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German (de)
French (fr)
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EP3780997A1 (en
Inventor
Bertrand GRAVLO
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Individual
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Individual
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Priority to PL19716185T priority Critical patent/PL3780997T3/en
Publication of EP3780997A1 publication Critical patent/EP3780997A1/en
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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
    • A47C9/00—Stools for specified purposes
    • A47C9/02—Office stools not provided for in main groups A47C1/00, A47C3/00 or A47C7/00; Workshop stools
    • A47C9/025—Stools for standing or leaning against, e.g. in a semi-standing or half-seated position
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C4/00—Foldable, collapsible or dismountable chairs
    • A47C4/04—Folding chairs with inflexible seats
    • A47C4/18—Folding chairs with inflexible seats having a frame made of metal
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C9/00—Stools for specified purposes
    • A47C9/02—Office stools not provided for in main groups A47C1/00, A47C3/00 or A47C7/00; Workshop stools
    • A47C9/027—Stools for work at ground level
    • 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
    • A47C7/029—Seat parts of non-adjustable shape adapted to a user contour or ergonomic seating positions

Definitions

  • the invention relates to a retractable seat, for a sit-to-stand position, as well as its method of use.
  • the seat also comprises a second module that can rotate in the same vertical plane as the first module comprising a support leg configured to be in surface contact with the ground in the position of use and a connecting rod fixed at a first end to the first module and at a second end to the support leg, the second module being configured so that 'in the use position the connecting rod and the support leg is in surface contact blocking the rotation of the second module in at least one direction of rotation.
  • the present invention has the advantage of providing a seat which allows the user to rest in a sit-stand position easily behind his workstation by deploying the seat with advantageously a single rotational movement, while limiting the wheelbase and by allowing a support comprising a horizontal component which can be the majority. Indeed, due to the connection of the seat to a fixed point, whether it is a piece of furniture or a base, the user's support does not have to be mainly vertical at the risk of causing the seat to move back or tip over. In addition, the seat does not require complicated assembly disassembly. Conversely, by a simple tilting, the first module and the second module pass from the position of use to the storage position, thus allowing the user to pass from the sitting-standing position to standing, to move or clear the station, simplifying the storage of the seat.
  • the seat comprises a spring element allowing a return to the storage position of the seat as soon as a support on the seat is removed or facilitating its maneuver by reducing the effort.
  • the seat includes a device for adjusting the height of the seat, so that the seat can be adapted to different users.
  • the invention relates to a retractable seat, between a use position and a storage position.
  • the seat is in particular intended for a user in a sitting-standing position.
  • sitting-standing position is meant an intermediate position between the standing position and the sitting position, that is to say a standing position in which part of the weight of the user is transmitted by the support of his buttocks on a seated.
  • the invention can also be used for a fully seated position. The difference will be the height of the seat relative to the ground: if it is high the seat will be intended for a sitting-standing position if it is lower, the seat will be intended for a sitting position.
  • the seat according to the invention comprises a seat 1 advantageously mounted on a bracket 22 comprising a crosspiece 23 and a vertical upright 24. As illustrated in the figures, the seat 1 is a substantially flat surface configured to at least partially receive the buttocks of the user.
  • the seat is configured to alternately assume a use position and a storage position respectively illustrated in figure 2 and 1 .
  • the seat In the storage position, the seat is retracted, that is to say that the seat is arranged so as not to be able to receive the buttocks of a user.
  • the seat in the position of use, the seat is deployed, that is to say that the seat 1 is arranged so as to be able to receive the buttocks of a user, more precisely the support of the buttocks of 'an user.
  • the retracted seat has a minimum size, advantageously less than 20 cm.
  • size is meant the width of the seat in the retracted position.
  • the seat typically comprises a first module rotatable in a vertical plane around a fixed point comprising at least one axis of rotation 9-10.
  • the at least one axis of rotation 9-10 is arranged on a fixed support 2.
  • the fixed support 2 can be either a base or an external element such as a piece of furniture.
  • the fixed support 2 as indicated must be fixed and resist the tilting movement and the force transmitted by the support of the user on the seat 1.
  • the seat according to the invention is particularly advantageous, because its installation behind a workstation is quick, easy, without damaging the furniture.
  • the seat is either independent thanks to an independent base placed for example at the foot of the user's workstation, or the seat is fixed directly to the furniture of the workstation for example.
  • the first module comprises longitudinal elements 5-6, configured to form a deformable quadrilateral.
  • the first module comprises a first longitudinal element 5 and a second longitudinal element 6.
  • the first longitudinal element 5 and the second longitudinal element 6 are advantageously connected at their lower ends to the fixed support 2 and at the upper part by a rod 7.
  • the quadrilateral is therefore formed by two longitudinal elements 5-6, the connecting rod 7, and the fixed support 2.
  • Each longitudinal element 5-6 is rotatable around an axis of rotation 9-10 arranged on the fixed support 2.
  • the two axes of rotation 9-10 are parallel and extend perpendicular to the vertical plane in which the first module is mobile.
  • the link 7 connects the first longitudinal element 5 and the second longitudinal element 6 by two joints each comprising an axis of rotation 11 - 12.
  • the two axes of rotation 11-12 are parallel and extend perpendicular to the vertical plane in which the first module is mobile.
  • the distance between the two axes of rotation 11-12 is equal to, or even less than, the distance between the two axes of rotation 9 -10
  • This arrangement makes it possible to have a stoppage of the rotation of the first module, by contact between the first longitudinal element 5 and the second longitudinal element 6.
  • the contact between the two longitudinal elements 5-6 is advantageously made by surface contact 17 preventing the rotation of the first module in the seat deployment direction.
  • the seat comprises a second module rotatable in the same vertical plane as the first module or in a parallel vertical plane around at least one axis of rotation 15.
  • the vertical planes in which the first module and the second module are mobile in rotation, are coincident or parallel.
  • the second module comprises a support leg 3 connected to the first module.
  • the second module comprises a connecting rod 8.
  • the connecting rod 8 connects the first module, more precisely the longitudinal element 5, to the support leg 3.
  • the connecting rod 8 comprises two joints allowing mobility in rotation around two axes of rotation 13-14, respectively arranged at each of its ends. According to an embodiment presented in picture 3 , the axis of rotation 13 of the connecting rod 8 coincides with the axis of rotation 11 of the connecting rod 7.
  • the connecting rod 8 and the connecting rod 7 have a common axis of rotation on the first longitudinal element 5.
  • the connecting rod 8 is arranged offset from the longitudinal axis of the support leg 3.
  • the support leg 3 comprises lugs 19 receiving a transverse axis constituting the axis of rotation 14 of the lower end of the connecting rod 8. This arrangement allows that the second module comprises a blocking element in the use position.
  • the seat comprises two second modules that are rotatable.
  • the two second modules are arranged symmetrically on either side of the first module.
  • the seat therefore comprises two connecting rods 8, 8', two support legs 3, 3', a foot 4.
  • the seat comprises two connecting rods 7, 7'.
  • Each connecting rod 7, 7' being arranged on either side of the first and second longitudinal elements 5 -6.
  • the support leg 3 is itself connected, advantageously by its upper end, to the first module, more precisely to the longitudinal element 6, by a joint comprising an axis of rotation 15.
  • the second module is configured to be locked in rotation in the direction of deployment by a surface contact between the support leg 3 and the connecting rod 8.
  • the surface contact 17 between the two longitudinal elements 5-6 of the first module and advantageously the surface contact 18 between the support leg 3 and the connecting rod 8 prevent the seat from continuing to tilt in the direction of deployment. 26. Rotation in the direction of retraction 27 is always possible.
  • the transfer of the weight of the user on the seat 1 on the first module and the second module favors the surface contacts and therefore the blocking in the position of use of the seat.
  • the axes of rotation 13-14 of the joints of the connecting rod 8 are mutually parallel and perpendicular to the vertical plane in which the first and the second module are rotatable.
  • the axes of rotation 9 to 15 of the first and of the second module are parallel to each other and perpendicular to the vertical plane in which said modules are rotatable.
  • the support leg 3 is intended to be in surface contact with the ground 16, in particular at the end of deployment of the seat.
  • the support leg comprises a foot 4 extending transversely to the lower end of the support leg 3 so as to be in surface contact with the ground 16.
  • the seat comprises two support legs 3 and 3 'fixed at their lower ends to a common foot 4.
  • the foot 4 is provided with a non-slip coating intended to promote contact with the ground 16 and therefore the maintenance in position of use, that is, deployed from the seat.
  • the weight of the user exerted on the seat 1 is transmitted to the first module and to the second module.
  • the weight transmitted to the second module is taken by the support leg 3 and the foot 4.
  • the foot 4 in the position of use, the foot 4 is placed directly above the seat 1 and preferably behind the seat 1, that is to say beyond the user when the latter is in a sitting-standing position.
  • the seat comprises a spring element advantageously allowing automatic return from the position of use to the storage position of the seat, or else assisting the user by reducing the effort associated with this movement.
  • the return force of the spring is configured to be less than the force exerted by the weight of the user on the seat 1.
  • the return force is advantageously greater than the weight of the seat in the deployed position.
  • the spring element is arranged between the first module and the fixed support 2, alternatively, the spring element can be arranged between the first module and the furniture of the workstation, for example when the seat is attached to a piece of furniture.
  • the seat comprises a device for adjusting the height of the seat 1.
  • the device comprises studs 21 mounted transversely on the vertical upright 24 of the stem 22.
  • the studs 21 are arranged in pairs symmetrically along the vertical upright 24.
  • the studs 21 may comprise numbers or be colored to facilitate height adjustment.
  • the vertical upright 24 is configured to slide in the second longitudinal element 6.
  • the second longitudinal element 6 comprises an internal slide intended to receive the vertical upright 24 and the studs 21.
  • the vertical upright 24 is rotatable along its longitudinal axis.
  • the studs 21 and the slide are complementary so as to allow the sliding of the vertical upright 24 when the studs 21 are aligned with the end openings of the slides and conversely preventing the sliding of the vertical upright 24 when the studs 21 are not not aligned with the end openings of the slides.
  • the second longitudinal element 6 comprises, at its upper end, a cover closing off the slideway and in which the vertical upright 24 slides. aligned with the slots and conversely preventing the vertical upright 24 from sliding when the studs 21 are not aligned with the slots.
  • the vertical upright 24 is able to slide in the second longitudinal element 6 when the seat is in the retracted position.
  • the vertical upright 24 is blocked in the second longitudinal element 6 when the seat is in the deployed position and the seat 1 is configured to receive the buttocks of the user.
  • the rotation of the vertical upright 24 along its longitudinal axis is controlled by two stops 20 arranged on the cover and coming into contact with the studs 21 to prevent rotation of the vertical upright 24 over more than 180°.
  • the seat 1 can be used as in the position illustrated in figure 2 , that is to say that the seat 1 is located between the first module and the second module, that is to say on the same side as a fixed point such as the base 2 relative to the first module, we will say in internal position.
  • the seat can be used in the so-called external position, that is to say it is in a symmetrical position on the longitudinal element 6, relative to the figure 2 ; the seat 1 still allowing the support of the user, positioned on the other side of the first module. Therefore, the seat 1 is configured to allow support for the user in both positions, internal and external.
  • the seat 1 In the position of use, the seat 1 is arranged substantially perpendicular to the vertical plane in which the first and the second module are mobile.
  • the seat 1 In the storage position, the seat 1 can remain in the same plane perpendicular to the vertical plane in which the first and the second module are mobile or else be folded down parallel to said vertical plane as illustrated in figure 1 . This last position is advantageous when the seat is fixed to a piece of furniture and the seat 1 is applied against a side wall of the piece of furniture.
  • the longitudinal elements 5-6, the connecting rod 7, the support leg 3, the connecting rod 4 as well as the stem are tubes of circular section without however being limiting. Some may be of different sections such as in particular square.
  • the first module extends in the vertical plane in which it is rotatable.
  • the second module is mainly contained in a vertical plane identical to or parallel to that of the first module and in which it is rotatable, with the exception of the foot 4 which is parallel to the ground.
  • the seat has optimal ergonomics, allowing the user to switch very easily and quickly from the sitting-standing position resting on the seat 1, to a standing position for moving around, without risk of being hindered. by seat elements in the legs.
  • the invention relates to a method of using the seat.
  • the method comprises the following steps, allowing passage from the storage position to the use position by a deployment step and vice versa from the use position to the storage position, by a retraction step.
  • the seat deployment step includes the tilting of the first module in a vertical plane in a direction of rotation called direction of deployment 26 around at least one axis of rotation.
  • This changeover is illustrated by the arrow referenced A1 on the figure 2 .
  • the first module moves away from a vertical position in which the longitudinal elements 5-6 are close to a vertical position.
  • the method comprises the tilting of the second module in a vertical plane identical to or parallel to the vertical plane in which the first module tilts. This changeover is illustrated by the arrow referenced A2 on the figure 2 .
  • the support leg 3 moves away from the first module following a rotation around at least one axis of rotation 13-15.
  • the simultaneous tilting of the first of the second module is stopped when the 2 modules can no longer rotate around their axes of rotation, preferably according to the surface contact 17 between the two longitudinal elements 5-6 of the first module and the surface contact 18 between the support leg 3 and the connecting rod 8.
  • the deployment step then comprises a step of positioning the seat, preferably comprising a step of adapting the height of the seat 1.
  • the seat 1 is moved by sliding the vertical upright 24 of the bracket 22, in the second longitudinal element 6. This sliding is illustrated by the arrow referenced B on the figure 2 .
  • the locking in position of the seat 1 is advantageously achieved by rotation of the seat 1 around its longitudinal axis. This movement is illustrated by the arrow referenced C on the figure 2 .
  • the seat 1 comprises a gripping handle 25 facilitating the deployment of the seat.
  • the method preferably comprises a step of retracting the seat, from a use position to a storage position.
  • the seat comprises a spring element allowing automatic retraction
  • the fact that the user ceases to exert pressure on the seat 1 is sufficient to initiate the steps for retracting the seat.
  • the step of retracting the seat includes the tilting of the first module in a vertical plane in the direction of rotation known as the direction of retraction 27, around at least one axis of rotation.
  • This failover is the reverse of that referenced A1.
  • the first module approaches a vertical position in which the longitudinal elements 5 - 6 are close to a vertical position.
  • the method comprises the tilting of the second module in a vertical plane identical to or parallel to the vertical plane in which the first module tilts. This switchover is the reverse of that illustrated by the arrow referenced A2 on the figure 2 .
  • the support leg 3 approaches the first module following a rotation around at least one axis of rotation 13 -15.
  • the step of retracting then comprises a step of positioning the seat preferably comprising a step of reducing the height of the seat 1.
  • the unlocking of the seat 1 is carried out advantageously by rotation of the seat 1 around its longitudinal axis. This movement is the reverse of that illustrated by the arrow referenced C on the figure 2 .
  • the seat 1 is moved by sliding of the vertical upright 24 of the stem 22 in the second longitudinal element 6. This sliding is the reverse of that illustrated by the arrow referenced B on the figure 2 .

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  • Special Chairs (AREA)
  • Seats For Vehicles (AREA)

Description

DOMAINE TECHNIQUE DE L'INVENTIONTECHNICAL FIELD OF THE INVENTION

L'invention concerne un siège escamotable, pour une position assis-debout, ainsi que son procédé d'utilisation.The invention relates to a retractable seat, for a sit-to-stand position, as well as its method of use.

Elle appartient au domaine des sièges et trouvera notamment son application pour supporter un utilisateur en position assis-debout lors de travail nécessitant une station de ce type.It belongs to the field of seats and will find its application in particular for supporting a user in a sitting-standing position during work requiring a station of this type.

ÉTAT DE LA TECHNIQUESTATE OF THE ART

Dans de nombreuses situations, un travail doit être réalisé en position debout ou une position intermédiaire dite assis-debout. Cela est notamment le cas dans des usines sur des chaînes de montage, lors de vente en magasin ou derrière des comptoirs. L'opérateur ne peut être en position assise du fait de la configuration du poste de travail et des éventuels déplacements à réaliser. En particulier dans les pharmacies, les opérateurs travaillent debout derrière leur poste de travail et doivent régulièrement se déplacer pour aller récupérer les médicaments et autres produits demandés. Toutefois, les longues périodes en station debout entraînent des complications au niveau des jambes telles que des douleurs ou syndromes des jambes lourdes.In many situations, work must be done in a standing position or an intermediate position called sitting-standing. This is particularly the case in factories on assembly lines, when selling in stores or behind counters. The operator cannot be in a seated position due to the configuration of the workstation and any movements to be made. Particularly in pharmacies, operators work standing behind their workstations and have to move regularly to pick up the medicines and other products requested. However, long periods of standing lead to leg complications such as pain or heavy leg syndrome.

Il existe des dispositifs qui sont destinés au maintien de l'opérateur en position assise, plus ou moins debout, telle que des tabourets. Notamment le brevet FR 2935879 décrit un siège assis-debout réglable et repliable de faible encombrement. Cependant, ce siège ne permet pas à l'utilisateur d'exercer un appui relativement horizontal important, au risque d'être déstabilisé par manque d'appui au sol. De plus, il présente un empattement notable au niveau des jambes, qui gêne les déplacements de l'opérateur derrière son poste de travail. Enfin, la mise en place et le rangement de ce siège sont des étapes compliquées ne pouvant pas être réalisés à tout moment par l'utilisateur. Un autre siège escamotable de ce type est connu de CN201042308Y .There are devices which are intended to maintain the operator in a seated position, more or less upright, such as stools. Especially the patent FR 2935879 describes an adjustable and collapsible sit-to-stand chair of small size. However, this seat does not allow the user to exert significant relatively horizontal support, at the risk of being destabilized by lack of support on the ground. In addition, it has a significant wheelbase at the level of the legs, which hinders the movement of the operator behind his workstation. Finally, the installation and storage of this seat are complicated steps that cannot be carried out at any time by the user. Another retractable seat of this type is known from CN201042308Y .

Il existe donc un besoin de proposer une solution qui réponde au moins en partie aux limitations précédemment exposées.There is therefore a need to propose a solution which responds at least in part to the limitations set out above.

RÉSUMÉ DE L'INVENTIONSUMMARY OF THE INVENTION

Pour atteindre cet objectif, selon un mode de réalisation, la présente invention prévoit un siège escamotable, comprenant une assise destinée à recevoir les fesses d'un utilisateur, notamment un appui des fesses, le siège étant configuré pour prendre alternativement une position d'utilisation dans laquelle le siège est déployé de sorte que l'assise puisse supporter les fesses de l'utilisateur et une position de rangement dans laquelle le siège est escamoté, l'assise ne pouvant pas recevoir les fesses de l'utilisateur, notamment un appui des fesses,
caractérisé en ce que le siège comprend :

  • un premier module mobile en rotation dans un plan vertical comprenant des éléments longitudinaux configurés pour former un quadrilatère déformable, le premier module étant articulé autour d'au moins un premier axe de rotation monté sur un support fixe, configuré pour qu'en position d'utilisation au moins deux éléments longitudinaux soient en contact surfacique bloquant la rotation du premier module suivant au moins un sens de rotation.
To achieve this objective, according to one embodiment, the present invention provides a retractable seat, comprising a seat intended to receive the buttocks of a user, in particular a support for the buttocks, the seat being configured to alternately assume a position of use in which the seat is deployed so that the seat can support the buttocks of the user and a storage position in which the seat is retracted, the seat not being able to receive the buttocks of the user, in particular a support of the buttocks,
characterized in that the seat comprises:
  • a first module mobile in rotation in a vertical plane comprising longitudinal elements configured to form a deformable quadrilateral, the first module being articulated around at least a first axis of rotation mounted on a fixed support, configured so that in position of use at least two longitudinal elements are in surface contact blocking the rotation of the first module in at least one direction of rotation.

Avantageusement, le siège comprend également un deuxième module mobile en rotation dans le même plan vertical que le premier module comprenant une jambe d'appui configurée pour être en contact surfacique avec le sol en position d'utilisation et une bielle fixée à une première extrémité au premier module et à une deuxième extrémité à la jambe d'appui, le deuxième module étant configuré pour qu'en position d'utilisation la bielle et la jambe d'appui soit en contact surfacique bloquant la rotation du deuxième module suivant au moins un sens de rotation.Advantageously, the seat also comprises a second module that can rotate in the same vertical plane as the first module comprising a support leg configured to be in surface contact with the ground in the position of use and a connecting rod fixed at a first end to the first module and at a second end to the support leg, the second module being configured so that 'in the use position the connecting rod and the support leg is in surface contact blocking the rotation of the second module in at least one direction of rotation.

La présente invention présente l'avantage de proposer un siège qui permet à l'utilisateur de se reposer en position assis-debout facilement derrière son poste de travail en déployant le siège avec avantageusement un seul mouvement de rotation, tout en limitant l'empattement et en permettant un appui comprenant une composante horizontale pouvant être majoritaire. En effet, du fait de la liaison du siège à un point fixe, qu'il soit un meuble ou un socle, l'appui de l'utilisateur n'a pas à être majoritairement vertical au risque de faire reculer ou basculer le siège. De plus, le siège ne nécessite pas de montage démontage compliqué. A l'inverse, par un simple basculement, le premier module et le deuxième module passent de la position d'utilisation à la position de rangement, permettant ainsi à l'utilisateur de passer de la position assis-debout à debout, pour se déplacer ou dégager le poste, en simplifiant le rangement du siège.The present invention has the advantage of providing a seat which allows the user to rest in a sit-stand position easily behind his workstation by deploying the seat with advantageously a single rotational movement, while limiting the wheelbase and by allowing a support comprising a horizontal component which can be the majority. Indeed, due to the connection of the seat to a fixed point, whether it is a piece of furniture or a base, the user's support does not have to be mainly vertical at the risk of causing the seat to move back or tip over. In addition, the seat does not require complicated assembly disassembly. Conversely, by a simple tilting, the first module and the second module pass from the position of use to the storage position, thus allowing the user to pass from the sitting-standing position to standing, to move or clear the station, simplifying the storage of the seat.

Avantageusement, le siège comprend un élément ressort permettant un retour à la position de rangement du siège dès la suppression d'un appui sur l'assise ou d'en faciliter la manœuvre en réduisant l'effort.Advantageously, the seat comprises a spring element allowing a return to the storage position of the seat as soon as a support on the seat is removed or facilitating its maneuver by reducing the effort.

Avantageusement le siège comprend un dispositif de réglage de la hauteur de l'assise, de sorte que le siège puisse être adapté aux différents utilisateurs.Advantageously, the seat includes a device for adjusting the height of the seat, so that the seat can be adapted to different users.

Un autre aspect de la présente invention concerne un procédé d'utilisation d'un siège assis-debout comprenant les étapes suivantes :

  • Déploiement du siège d'une position de rangement à une position d'utilisation comprenant le basculement du premier module dans un plan vertical suivant un sens de rotation autour d'au moins un axe de rotation simultanément au basculement de la jambe d'appui dans le même plan vertical autour d'un axe de rotation jusqu'à ce que la jambe d'appui soit en contact surfacique avec le sol et qu'au moins deux éléments longitudinaux du premier module soit en contact l'un sur l'autre de sorte à bloquer la rotation du premier module suivant au moins un sens de rotation et que la jambe d'appui et sa bielle soit en contact l'une sur l'autre de sorte à bloquer la rotation du deuxième module suivant au moins un sens de rotation.
  • Escamotage du siège de la position d'utilisation à la position de rangement comprenant le basculement de la jambe d'appui dans le plan vertical autour d'un axe de rotation dans le sens de rotation contraire à celui de l'étape de déploiement simultanément au basculement du premier module dans le même plan vertical suivant un sens de rotation contraire à celui de l'étape de déploiement autour d'au moins un axe de rotation.
Another aspect of the present invention relates to a method of using a sit-stand chair comprising the following steps:
  • Deployment of the seat from a storage position to a use position comprising the tilting of the first module in a vertical plane in a direction of rotation around at least one axis of rotation simultaneously with the tilting of the support leg in the same vertical plane around an axis of rotation until the support leg is in surface contact with the ground and at least two longitudinal elements of the first module is in contact with each other so as to block the rotation of the first module in at least one direction of rotation and that the support leg and its connecting rod are in contact with each other so as to block the rotation of the second module in at least one direction of rotation.
  • Retraction of the seat from the use position to the storage position comprising the tilting of the support leg in the vertical plane around an axis of rotation in the direction of rotation opposite to that of the deployment step simultaneously with the tilting of the first module in the same vertical plane in a direction of rotation opposite to that of the deployment step around at least one axis of rotation.

BRÈVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF FIGURES

Les buts, objets, ainsi que les caractéristiques et avantages de l'invention ressortiront mieux de la description détaillée d'un mode de réalisation de cette dernière qui est illustré par les dessins d'accompagnement suivants dans lesquels :

  • Les FIGURES 1 à 2 sont des représentations schématiques de deux positions du siège selon l'invention en vue de trois quarts. La FIGURE 1 représente la position escamotée du siège. La FIGURE 2 représente la position d'utilisation du siège.
  • La figure 3 illustre une variante du siège selon l'invention.
The aims, objects, as well as the characteristics and advantages of the invention will emerge better from the detailed description of an embodiment of the latter which is illustrated by the following accompanying drawings in which:
  • The FIGURES 1 to 2 are schematic representations of two positions of the seat according to the invention in three-quarter view. The FIGURE 1 represents the stowed position of the seat. The FIGURE 2 represents the position of use of the seat.
  • The picture 3 illustrates a variant of the seat according to the invention.

Les dessins sont donnés à titre d'exemples et ne sont pas limitatifs de l'invention. Ils constituent des représentations schématiques de principe destinées à faciliter la compréhension de l'invention et ne sont pas nécessairement à l'échelle des applications pratiques.The drawings are given by way of examples and do not limit the invention. They constitute schematic representations of principle intended to facilitate understanding of the invention and are not necessarily at the scale of practical applications.

DESCRIPTION DÉTAILLÉE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION

Avant d'entamer une revue détaillée de modes de réalisation de l'invention, sont énoncées ci-après des caractéristiques optionnelles qui peuvent éventuellement être utilisées en association ou alternativement :

  • Avantageusement, le premier module comprend un premier élément longitudinal et un deuxième élément longitudinal respectivement fixés à leurs extrémités inférieures au support fixe par un premier axe de rotation et un deuxième axe de rotation, le premier et le deuxième axe de rotation étant parallèles.
    • Avantageusement, le support fixe est solidaire d'un élément externe, préférentiellement un meuble.
    • Avantageusement, le support fixe est un socle, notamment prévu pour recevoir l'appui des pieds de l'utilisateur, dans le cadre d'une utilisation comme siège en pose libre.
  • Avantageusement, le premier élément longitudinal et le deuxième élément longitudinal sont reliés entre eux à leurs extrémités supérieures par une biellette.
    L'ensemble du premier module forme un quadrilatère déformable permettant un déploiement et un 'escamotage du siège particulièrement aisé et pouvant jouer avantageusement également le rôle d'élément de blocage du siège, en position d'utilisation.
  • Avantageusement, la jambe d'appui comprend un pied s'étendant transversalement et permettant l'appui surfacique de la jambe sur le sol.
  • Avantageusement, la bielle est agencée en partie supérieure de la jambe d'appui de manière déportée.
  • Avantageusement, la bielle est fixée à une extrémité au premier élément longitudinal par un axe de rotation et à son extrémité opposée à la jambe d'appui par un axe de rotation.
  • Avantageusement, la jambe d'appui est fixée par un axe de rotation (un quatrième axe de rotation) au deuxième élément longitudinal du premier module.
  • Avantageusement, l'assise est montée sur une potence comprenant une traverse et un montant vertical, avantageusement monté coulissant dans le deuxième élément longitudinal du premier module.
  • Avantageusement, le montant vertical est configuré pour être mobile en rotation relativement au deuxième élément longitudinal du premier module.
  • Avantageusement, le siège comprend un dispositif de réglage de la hauteur de l'assise. Avantageusement, le dispositif de réglage comprend des plots espacés sur la longueur de la potence.
  • Avantageusement, l'assise comprend un élément de préhension permettant la préhension de l'assise par l'utilisateur et le passage à la position d'utilisation du siège.
  • Avantageusement, le siège comprend un élément ressort permettant un retour automatique à la position de rangement du siège dès l'absence d'effort sur l'assise.
  • Avantageusement, le procédé d'utilisation comprend dans le déploiement du siège, la préhension de l'assise permettant l'entrainement du basculement du premier module et de la jambe d'appui
  • Avantageusement, le procédé d'utilisation comprend le réglage en hauteur de l'assise par coulissement et rotation de l'assise relativement au deuxième élément longitudinal du premier module.
Before starting a detailed review of embodiments of the invention, optional characteristics are set out below which may possibly be used in combination or alternatively:
  • Advantageously, the first module comprises a first longitudinal element and a second longitudinal element respectively fixed at their lower ends to the fixed support by a first axis of rotation and a second axis of rotation, the first and the second axis of rotation being parallel.
    • Advantageously, the fixed support is secured to an external element, preferably a piece of furniture.
    • Advantageously, the fixed support is a base, in particular designed to receive support from the user's feet, in the context of use as a free-standing seat.
  • Advantageously, the first longitudinal element and the second longitudinal element are interconnected at their upper ends by a connecting rod.
    The whole of the first module forms a deformable quadrilateral allowing deployment and retraction of the seat which is particularly easy and which can advantageously also play the role of blocking element of the seat, in the position of use.
  • Advantageously, the support leg comprises a foot extending transversely and allowing surface support of the leg on the ground.
  • Advantageously, the connecting rod is arranged in the upper part of the supporting leg in an offset manner.
  • Advantageously, the connecting rod is fixed at one end to the first longitudinal element by an axis of rotation and at its end opposite to the support leg by an axis of rotation.
  • Advantageously, the support leg is fixed by an axis of rotation (a fourth axis of rotation) to the second longitudinal element of the first module.
  • Advantageously, the seat is mounted on a bracket comprising a crosspiece and a vertical upright, advantageously mounted to slide in the second longitudinal element of the first module.
  • Advantageously, the vertical upright is configured to be rotatable relative to the second longitudinal element of the first module.
  • Advantageously, the seat includes a device for adjusting the height of the seat. Advantageously, the adjustment device comprises pads spaced along the length of the stem.
  • Advantageously, the seat comprises a gripping element allowing the gripping of the seat by the user and the passage to the position of use of the seat.
  • Advantageously, the seat comprises a spring element allowing automatic return to the storage position of the seat as soon as there is no force on the seat.
  • Advantageously, the method of use comprises in the deployment of the seat, the gripping of the seat allowing the training of the tilting of the first module and of the support leg
  • Advantageously, the method of use comprises the height adjustment of the seat by sliding and rotation of the seat relative to the second longitudinal element of the first module.

L'usage de l'article indéfini " un " ou " une " pour un élément ou une étape n'exclut pas, sauf mention contraire, la présence d'une pluralité de tels éléments ou étapes.The use of the indefinite article "a" or "a" for an element or a step does not exclude, unless otherwise stated, the presence of a plurality of such elements or steps.

L'invention concerne un siège escamotable, entre une position d'utilisation et une position de rangement. Le siège est notamment destiné à un utilisateur en position assis-debout. On entend par position assis-debout une position intermédiaire entre la position debout et la position assise, c'est-à-dire une position debout dans laquelle une partie du poids de l'utilisateur est transmis par l'appui de ses fesses sur une assise. L'invention peut toutefois également être utilisée pour une position assise complètement. La différence sera la hauteur de l'assise relativement au sol : si elle est haute le siège sera destiné à une position assis-debout si elle est plus basse, le siège sera destiné à une position assise.The invention relates to a retractable seat, between a use position and a storage position. The seat is in particular intended for a user in a sitting-standing position. By sitting-standing position is meant an intermediate position between the standing position and the sitting position, that is to say a standing position in which part of the weight of the user is transmitted by the support of his buttocks on a seated. However, the invention can also be used for a fully seated position. The difference will be the height of the seat relative to the ground: if it is high the seat will be intended for a sitting-standing position if it is lower, the seat will be intended for a sitting position.

Le siège selon l'invention comprend une assise 1 avantageusement montée sur une potence 22 comprenant une traverse 23 et un montant vertical 24. Tel qu'illustré sur les figures, l'assise 1 est une surface sensiblement plane configurée pour recevoir au moins partiellement les fesses de l'utilisateur.The seat according to the invention comprises a seat 1 advantageously mounted on a bracket 22 comprising a crosspiece 23 and a vertical upright 24. As illustrated in the figures, the seat 1 is a substantially flat surface configured to at least partially receive the buttocks of the user.

Le siège est configuré pour prendre alternativement une position d'utilisation et une position de rangement respectivement illustrées aux figures 2 et 1.The seat is configured to alternately assume a use position and a storage position respectively illustrated in figure 2 and 1 .

En position de rangement, le siège est escamoté, c'est-à-dire que l'assise est disposée de sorte à ne pas pouvoir recevoir les fesses d'un utilisateur.In the storage position, the seat is retracted, that is to say that the seat is arranged so as not to be able to receive the buttocks of a user.

À l'opposé, en position d'utilisation, le siège est déployé, c'est-à-dire que l'assise 1 est disposée de sorte à pouvoir recevoir les fesses d'un utilisateur, plus précisément l'appui des fesses d'un utilisateur.On the other hand, in the position of use, the seat is deployed, that is to say that the seat 1 is arranged so as to be able to receive the buttocks of a user, more precisely the support of the buttocks of 'an user.

De cette manière, le siège escamoté présente un encombrement minimal, avantageusement inférieur à 20 cm. On entend par encombrement, la largeur du siège en position escamotée.In this way, the retracted seat has a minimum size, advantageously less than 20 cm. By size is meant the width of the seat in the retracted position.

Le siège comprend de manière caractéristique un premier module mobile en rotation dans un plan vertical autour d'un point fixe comprenant au moins un axe de rotation 9-10. Préférentiellement, le au moins un axe de rotation 9-10 est agencé sur un support fixe 2.The seat typically comprises a first module rotatable in a vertical plane around a fixed point comprising at least one axis of rotation 9-10. Preferably, the at least one axis of rotation 9-10 is arranged on a fixed support 2.

Le support fixe 2 peut être soit un socle, soit un élément extérieur tel qu'un meuble. Le support fixe 2 comme indiqué doit être fixe et résister au mouvement de basculement et à la force transmise par l'appui de l'utilisateur sur l'assise 1.The fixed support 2 can be either a base or an external element such as a piece of furniture. The fixed support 2 as indicated must be fixed and resist the tilting movement and the force transmitted by the support of the user on the seat 1.

Le siège selon l'invention est particulièrement avantageux, car sa mise en place derrière un poste de travail est rapide, facile, sans endommagement du mobilier. Le siège est soit indépendant grâce à un socle indépendant placé par exemple au pied du poste de travail de l'utilisateur, soit le siège se fixe directement au mobilier du poste de travail par exemple.The seat according to the invention is particularly advantageous, because its installation behind a workstation is quick, easy, without damaging the furniture. The seat is either independent thanks to an independent base placed for example at the foot of the user's workstation, or the seat is fixed directly to the furniture of the workstation for example.

Le premier module comprend des éléments longitudinaux 5-6, configurés pour former un quadrilatère déformable. Avantageusement, le premier module comprend un premier élément longitudinal 5 et un deuxième élément longitudinal 6. Le premier élément longitudinal 5 et le deuxième élément longitudinal 6 sont avantageusement reliés à leurs extrémités inférieures au support fixe 2 et en partie supérieure par une biellette 7. Le quadrilatère est donc formé par deux éléments longitudinaux 5-6, la biellette 7, et le support fixe 2. Chaque élément longitudinal 5-6 est mobile en rotation autour d'un axe de rotation 9-10 agencé sur le support fixe 2. Avantageusement, les deux axes de rotation 9-10 sont parallèles et s'étendent perpendiculairement au plan vertical dans lequel le premier module est mobile. La biellette 7 relie le premier élément longitudinal 5 et le deuxième élément longitudinal 6 par deux articulations comprenant chacune un axe de rotation 11 - 12. Les deux axes de rotation 11-12 sont parallèles et s'étendent perpendiculairement au plan vertical dans lequel le premier module est mobile. Préférentiellement, la distance entre les deux axes de rotation 11-12 est égale, voire inférieure, à la distance entre les deux axes de rotation 9 -10The first module comprises longitudinal elements 5-6, configured to form a deformable quadrilateral. Advantageously, the first module comprises a first longitudinal element 5 and a second longitudinal element 6. The first longitudinal element 5 and the second longitudinal element 6 are advantageously connected at their lower ends to the fixed support 2 and at the upper part by a rod 7. The quadrilateral is therefore formed by two longitudinal elements 5-6, the connecting rod 7, and the fixed support 2. Each longitudinal element 5-6 is rotatable around an axis of rotation 9-10 arranged on the fixed support 2. Advantageously , the two axes of rotation 9-10 are parallel and extend perpendicular to the vertical plane in which the first module is mobile. The link 7 connects the first longitudinal element 5 and the second longitudinal element 6 by two joints each comprising an axis of rotation 11 - 12. The two axes of rotation 11-12 are parallel and extend perpendicular to the vertical plane in which the first module is mobile. Preferably, the distance between the two axes of rotation 11-12 is equal to, or even less than, the distance between the two axes of rotation 9 -10

Cette disposition permet d'avoir un arrêt de la rotation du premier module, par contact entre le premier élément longitudinal 5 et le deuxième élément longitudinal 6. Le contact entre les deux éléments longitudinaux 5-6 se fait avantageusement par contact surfacique 17 empêchant la rotation du premier module dans le sens de déploiement du siège.This arrangement makes it possible to have a stoppage of the rotation of the first module, by contact between the first longitudinal element 5 and the second longitudinal element 6. The contact between the two longitudinal elements 5-6 is advantageously made by surface contact 17 preventing the rotation of the first module in the seat deployment direction.

Avantageusement, le siège comprend un deuxième module mobile en rotation dans le même plan vertical que le premier module ou dans un plan vertical parallèle autour d'au moins un axe de rotation 15. Les plans verticaux dans lesquels le premier module et le deuxième module sont mobiles en rotation, sont confondus ou parallèles. Le deuxième module comprend une jambe d'appui 3 reliée au premier module. Selon une possibilité préférée, le deuxième module comprend une bielle 8. La bielle 8 relie le premier module, plus précisément l'élément longitudinal 5, à la jambe d'appui 3. La bielle 8 comprend deux articulations permettant une mobilité en rotation autour de deux axes de rotation 13-14, respectivement agencés à chacune de ses extrémités. Selon un mode de réalisation présenté en figure 3, l'axe de rotation 13 de la bielle 8 est confondu avec l'axe de rotation 11 de la biellette 7. La bielle 8 et la biellette 7 ont un axe de rotation commun sur le premier élément longitudinal 5. Préférentiellement, la bielle 8 est agencée déportée de l'axe longitudinal de la jambe d'appui 3. La jambe d'appui 3 comprend des pattes 19 recevant un axe transversal constituant l'axe de rotation 14 de l'extrémité inférieure de la bielle 8. Cette disposition permet que le deuxième module comprenne un élément de blocage en position d'utilisation.Advantageously, the seat comprises a second module rotatable in the same vertical plane as the first module or in a parallel vertical plane around at least one axis of rotation 15. The vertical planes in which the first module and the second module are mobile in rotation, are coincident or parallel. The second module comprises a support leg 3 connected to the first module. According to a preferred possibility, the second module comprises a connecting rod 8. The connecting rod 8 connects the first module, more precisely the longitudinal element 5, to the support leg 3. The connecting rod 8 comprises two joints allowing mobility in rotation around two axes of rotation 13-14, respectively arranged at each of its ends. According to an embodiment presented in picture 3 , the axis of rotation 13 of the connecting rod 8 coincides with the axis of rotation 11 of the connecting rod 7. The connecting rod 8 and the connecting rod 7 have a common axis of rotation on the first longitudinal element 5. Preferably, the connecting rod 8 is arranged offset from the longitudinal axis of the support leg 3. The support leg 3 comprises lugs 19 receiving a transverse axis constituting the axis of rotation 14 of the lower end of the connecting rod 8. This arrangement allows that the second module comprises a blocking element in the use position.

Selon un mode de réalisation présenté en figure 3, le siège comprend deux deuxièmes modules mobiles en rotation. Les deux deuxièmes modules sont disposés symétriquement de part et d'autre du premier module. De cette manière, l'appui du siège est amélioré, notamment en limitant les risques de déformation en torsion des modules. Selon ce mode de réalisation, le siège comprend donc deux bielles 8, 8' deux jambes d'appui 3,3' un pied 4. Avantageusement, le siège comprend deux biellettes 7, 7'. Chaque biellette 7, 7' étant agencée de part et d'autre des premier et deuxième éléments longitudinaux 5 -6.According to an embodiment presented in picture 3 , the seat comprises two second modules that are rotatable. The two second modules are arranged symmetrically on either side of the first module. In this way, seat support is improved, in particular by limiting the risk of torsional deformation of the modules. According to this embodiment, the seat therefore comprises two connecting rods 8, 8', two support legs 3, 3', a foot 4. Advantageously, the seat comprises two connecting rods 7, 7'. Each connecting rod 7, 7' being arranged on either side of the first and second longitudinal elements 5 -6.

Selon une possibilité préférée, la jambe d'appui 3 est elle-même reliée, avantageusement par son extrémité supérieure, au premier module, plus précisément à l'élément longitudinal 6, par une articulation comprenant un axe de rotation 15.According to a preferred possibility, the support leg 3 is itself connected, advantageously by its upper end, to the first module, more precisely to the longitudinal element 6, by a joint comprising an axis of rotation 15.

Selon l'invention, le deuxième module est configuré pour être bloqué en rotation dans le sens de déploiement par un contact surfacique entre la jambe d'appui 3 et la bielle 8.According to the invention, the second module is configured to be locked in rotation in the direction of deployment by a surface contact between the support leg 3 and the connecting rod 8.

En position d'utilisation, le contact surfacique 17 entre les deux éléments longitudinaux 5-6 du premier module et avantageusement le contact surfacique 18 entre la jambe d'appui 3 et la bielle 8 empêchent le siège de continuer à basculer dans le sens de déploiement 26. La rotation suivant le sens d'escamotage 27 est toujours possible. Le transfert du poids de l'utilisateur sur l'assise 1 sur le premier module et le deuxième module favorise les contacts surfaciques et donc le blocage en position d'utilisation du siège.In the position of use, the surface contact 17 between the two longitudinal elements 5-6 of the first module and advantageously the surface contact 18 between the support leg 3 and the connecting rod 8 prevent the seat from continuing to tilt in the direction of deployment. 26. Rotation in the direction of retraction 27 is always possible. The transfer of the weight of the user on the seat 1 on the first module and the second module favors the surface contacts and therefore the blocking in the position of use of the seat.

Les axes de rotation 13-14 des articulations de la bielle 8 sont parallèles entre eux et perpendiculaires au plan vertical dans lequel le premier et le deuxième module sont mobiles en rotation.The axes of rotation 13-14 of the joints of the connecting rod 8 are mutually parallel and perpendicular to the vertical plane in which the first and the second module are rotatable.

Avantageusement, les axes de rotation 9 à 15 du premier et du deuxième module sont parallèles les uns aux autres et perpendiculaires au plan vertical dans lequel lesdits modules sont mobiles en rotation.Advantageously, the axes of rotation 9 to 15 of the first and of the second module are parallel to each other and perpendicular to the vertical plane in which said modules are rotatable.

La jambe d'appui 3 est destinée à être en contact surfacique avec le sol 16, notamment à la fin de déploiement du siège. Avantageusement, la jambe d'appui comprend un pied 4 s'étendant transversalement à l'extrémité inférieure de la jambe d'appui 3 de sorte à être en contact surfacique avec le sol 16. Selon le mode de réalisation illustré à la figure 3, le siège comprend deux jambes d'appui 3 et 3' fixées à leurs extrémités inférieures à un pied commun 4. Préférentiellement, le pied 4 est muni d'un revêtement antidérapant destiné à favoriser le contact avec le sol 16 et donc le maintien en position d'utilisation, c'est-à-dire déployé du siège. En position d'utilisation, le poids de l'utilisateur exercé sur l'assise 1 est transmis au premier module et au deuxième module. Le poids transmis au deuxième module est pris par la jambe d'appui 3 et le pied 4. Avantageusement en position d'utilisation le pied 4 est disposé à l'aplomb de l'assise 1 et préférentiellement en arrière de l'assise 1, c'est-à-dire au-delà de l'utilisateur lorsque celui-ci est en position assis-debout.The support leg 3 is intended to be in surface contact with the ground 16, in particular at the end of deployment of the seat. Advantageously, the support leg comprises a foot 4 extending transversely to the lower end of the support leg 3 so as to be in surface contact with the ground 16. According to the embodiment illustrated in picture 3 , the seat comprises two support legs 3 and 3 'fixed at their lower ends to a common foot 4. Preferably, the foot 4 is provided with a non-slip coating intended to promote contact with the ground 16 and therefore the maintenance in position of use, that is, deployed from the seat. In the use position, the weight of the user exerted on the seat 1 is transmitted to the first module and to the second module. The weight transmitted to the second module is taken by the support leg 3 and the foot 4. Advantageously, in the position of use, the foot 4 is placed directly above the seat 1 and preferably behind the seat 1, that is to say beyond the user when the latter is in a sitting-standing position.

Suivant un mode de réalisation, le siège comprend un élément ressort permettant avantageusement un retour automatique de la position d'utilisation à la position de rangement du siège, ou bien d'assister l'utilisateur en allégeant l'effort lié à ce mouvement. La force de rappel du ressort est configurée pour être inférieure à la force exercée par le poids de l'utilisateur sur l'assise 1. La force de rappel est avantageusement supérieure au poids du siège en position déployé. Ainsi, en l'absence d'une force exercée sur l'assise 1, la force de rappel du ressort entraîne le siège à s'escamoter en position de rangement. Préférentiellement, l'élément ressort est disposé entre le premier module et le support fixe 2, alternativement, l'élément ressort peut être disposé entre le premier module et le mobilier du poste de travail par exemple lorsque le siège est solidaire d'un meuble.According to one embodiment, the seat comprises a spring element advantageously allowing automatic return from the position of use to the storage position of the seat, or else assisting the user by reducing the effort associated with this movement. The return force of the spring is configured to be less than the force exerted by the weight of the user on the seat 1. The return force is advantageously greater than the weight of the seat in the deployed position. Thus, in the absence of a force exerted on the seat 1, the return force of the spring causes the seat to retract into the storage position. Preferably, the spring element is arranged between the first module and the fixed support 2, alternatively, the spring element can be arranged between the first module and the furniture of the workstation, for example when the seat is attached to a piece of furniture.

De manière avantageuse, le siège comprend un dispositif de réglage de la hauteur de l'assise 1. Une possibilité est illustrée sur les figures. Le dispositif comprend des plots 21 montés transversalement sur le montant vertical 24 de la potence 22. Préférentiellement, les plots 21 sont disposés par paire de manière symétrique le long du montant vertical 24. Selon une possibilité, les plots 21 peuvent comporter des numéros ou être colorés de sorte à faciliter le réglage de la hauteur. Le montant vertical 24 est configuré pour coulisser dans le deuxième élément longitudinal 6. Le deuxième élément longitudinal 6 comprend une glissière intérieure destinée à recevoir le montant vertical 24 et les plots 21. Le montant vertical 24 est mobile en rotation suivant son axe longitudinal. Les plots 21 et la glissière sont complémentaires de sorte à permettre le coulissement du montant vertical 24 lorsque les plots 21 sont alignés avec les ouvertures d'extrémités des glissières et à l'inverse empêchant le coulissement du montant vertical 24 lorsque les plots 21 ne sont pas alignés avec les ouvertures d'extrémités des glissières. Selon une possibilité, le deuxième élément longitudinal 6 comprend à son extrémité supérieure, un capot obturant la glissière et dans lequel coulisse le montant vertical 24. Le capot comprend des fentes de forme complémentaires des plots 21 de sorte à permettre le coulissement du montant vertical 24 lorsque les plots 21 sont alignés avec les fentes et à l'inverse empêchant le coulissement du montant vertical 24 lorsque les plots 21 ne sont pas alignés avec les fentes.Advantageously, the seat comprises a device for adjusting the height of the seat 1. One possibility is illustrated in the figures. The device comprises studs 21 mounted transversely on the vertical upright 24 of the stem 22. Preferably, the studs 21 are arranged in pairs symmetrically along the vertical upright 24. According to one possibility, the studs 21 may comprise numbers or be colored to facilitate height adjustment. The vertical upright 24 is configured to slide in the second longitudinal element 6. The second longitudinal element 6 comprises an internal slide intended to receive the vertical upright 24 and the studs 21. The vertical upright 24 is rotatable along its longitudinal axis. The studs 21 and the slide are complementary so as to allow the sliding of the vertical upright 24 when the studs 21 are aligned with the end openings of the slides and conversely preventing the sliding of the vertical upright 24 when the studs 21 are not not aligned with the end openings of the slides. According to one possibility, the second longitudinal element 6 comprises, at its upper end, a cover closing off the slideway and in which the vertical upright 24 slides. aligned with the slots and conversely preventing the vertical upright 24 from sliding when the studs 21 are not aligned with the slots.

Préférentiellement, le montant vertical 24 est apte à coulisser dans le deuxième élément longitudinal 6 lorsque le siège est en position escamoté. Avantageusement, le montant vertical 24 est bloqué dans le deuxième élément longitudinal 6 lorsque le siège est en position déployée et que l'assise 1 est configurée pour recevoir les fesses de l'utilisateur.Preferably, the vertical upright 24 is able to slide in the second longitudinal element 6 when the seat is in the retracted position. Advantageously, the vertical upright 24 is blocked in the second longitudinal element 6 when the seat is in the deployed position and the seat 1 is configured to receive the buttocks of the user.

Avantageusement, la rotation du montant vertical 24 suivant son axe longitudinal est contrôlée par deux butées 20 disposées sur le capot et venant en contact avec les plots 21 pour empêcher une rotation du montant vertical 24 sur plus de 180°. L'assise 1 peut être utilisée telle qu'en position illustrée en figure 2, c'est-à-dire que l'assise 1 se situe entre le premier module et le deuxième module, c'est-à-dire du même côté qu'un point fixe tel que le socle 2 relativement au premier module, on dira en position interne. Avantageusement, l'assise peut être utilisée en position dite externe, c'est-à-dire qu'elle est dans une position symétrique sur l'élément longitudinal 6, relativement à la figure 2 ; l'assise 1 permettant toujours l'appui de l'utilisateur, positionné sur l'autre côté du premier module. De ce fait, l'assise 1 est configurée pour permettre un appui de l'utilisateur dans les deux positions, interne et externe.Advantageously, the rotation of the vertical upright 24 along its longitudinal axis is controlled by two stops 20 arranged on the cover and coming into contact with the studs 21 to prevent rotation of the vertical upright 24 over more than 180°. The seat 1 can be used as in the position illustrated in figure 2 , that is to say that the seat 1 is located between the first module and the second module, that is to say on the same side as a fixed point such as the base 2 relative to the first module, we will say in internal position. Advantageously, the seat can be used in the so-called external position, that is to say it is in a symmetrical position on the longitudinal element 6, relative to the figure 2 ; the seat 1 still allowing the support of the user, positioned on the other side of the first module. Therefore, the seat 1 is configured to allow support for the user in both positions, internal and external.

En position d'utilisation, l'assise 1 est disposée sensiblement perpendiculairement au plan vertical dans lequel le premier et le deuxième module sont mobiles.In the position of use, the seat 1 is arranged substantially perpendicular to the vertical plane in which the first and the second module are mobile.

En position de rangement l'assise 1 peut rester dans le même plan perpendiculairement au plan vertical dans lequel le premier et le deuxième module sont mobiles ou bien être rabattue parallèle audit plan vertical tel qu'illustré à la figure 1. Cette dernière position est avantageuse lorsque le siège est fixé sur un meuble ainsi l'assise 1 vient s'appliquer sur une paroi latérale du meuble.In the storage position, the seat 1 can remain in the same plane perpendicular to the vertical plane in which the first and the second module are mobile or else be folded down parallel to said vertical plane as illustrated in figure 1 . This last position is advantageous when the seat is fixed to a piece of furniture and the seat 1 is applied against a side wall of the piece of furniture.

Sur les figures, les éléments longitudinaux 5 - 6, la biellette 7, la jambe d'appui 3, la bielle 4 ainsi que la potence sont des tubes de section circulaires sans pour autant être limitatifs. Certains peuvent être de sections différentes telles que notamment carrées.In the figures, the longitudinal elements 5-6, the connecting rod 7, the support leg 3, the connecting rod 4 as well as the stem are tubes of circular section without however being limiting. Some may be of different sections such as in particular square.

Selon l'invention, le premier module s'étend dans le plan vertical dans lequel il est mobile en rotation. De même le deuxième module est principalement contenu dans un plan vertical identique ou parallèle à celui du premier module et dans lequel il est mobile en rotation, à l'exception du pied 4 qui est lui parallèle au sol. De cette manière, le siège présente une ergonomie optimale, permettant à l'utilisateur de passer très facilement et rapidement de la position assis-debout en appui sur l'assise 1, à une position debout pour se déplacer, sans risque d'être gêné par des éléments du siège au niveau des jambes.According to the invention, the first module extends in the vertical plane in which it is rotatable. Similarly, the second module is mainly contained in a vertical plane identical to or parallel to that of the first module and in which it is rotatable, with the exception of the foot 4 which is parallel to the ground. In this way, the seat has optimal ergonomics, allowing the user to switch very easily and quickly from the sitting-standing position resting on the seat 1, to a standing position for moving around, without risk of being hindered. by seat elements in the legs.

L'invention concerne un procédé d'utilisation du siège.The invention relates to a method of using the seat.

Le procédé comprend les étapes suivantes, permettant le passage de la position de rangement à la position d'utilisation par une étape de déploiement et inversement de la position d'utilisation à la position de rangement, par une étape d'escamotage.The method comprises the following steps, allowing passage from the storage position to the use position by a deployment step and vice versa from the use position to the storage position, by a retraction step.

L'étape de déploiement du siège comprend le basculement du premier module dans un plan vertical suivant un sens de rotation dit sens de déploiement 26 autour d'au moins un axe de rotation. Ce basculement est illustré par la flèche référencée A1 sur la figure 2. Le premier module s'éloigne d'une position verticale dans laquelle les éléments longitudinaux 5-6 sont proches d'une position verticale. Simultanément au basculement du premier module, le procédé comprend le basculement du deuxième module dans un plan vertical identique ou parallèle au plan vertical dans lequel le premier module bascule. Ce basculement est illustré par la flèche référencée A2 sur la figure 2. La jambe d'appui 3 s'écarte du premier module suivant une rotation autour d'au moins un axe de rotation 13-15.The seat deployment step includes the tilting of the first module in a vertical plane in a direction of rotation called direction of deployment 26 around at least one axis of rotation. This changeover is illustrated by the arrow referenced A1 on the figure 2 . The first module moves away from a vertical position in which the longitudinal elements 5-6 are close to a vertical position. Simultaneously with the tilting of the first module, the method comprises the tilting of the second module in a vertical plane identical to or parallel to the vertical plane in which the first module tilts. This changeover is illustrated by the arrow referenced A2 on the figure 2 . The support leg 3 moves away from the first module following a rotation around at least one axis of rotation 13-15.

Les basculements simultanés du premier du deuxième module sont stoppés lorsque les 2 modules ne peuvent plus tourner autour de leurs axes de rotation, préférentiellement selon le contact surfacique 17 entre les deux éléments longitudinaux 5-6 du premier module et le contact surfacique 18 entre la jambe d'appui 3 et la bielle 8.The simultaneous tilting of the first of the second module is stopped when the 2 modules can no longer rotate around their axes of rotation, preferably according to the surface contact 17 between the two longitudinal elements 5-6 of the first module and the surface contact 18 between the support leg 3 and the connecting rod 8.

Avantageusement, l'étape de déploiement comprend ensuite une étape de positionnement de l'assise, comprenant de manière préférentielle une étape d'adaptation de la hauteur de l'assise 1. L'assise 1 est déplacée par coulissement du montant vertical 24 de la potence 22, dans le deuxième élément longitudinal 6. Ce coulissement est illustré par la flèche référencée B sur la figure 2. Le blocage en position, de l'assise 1, est réalisé avantageusement par rotation de l'assise 1 autour de son axe longitudinal. Ce mouvement est illustré par la flèche référencée C sur la figure 2.Advantageously, the deployment step then comprises a step of positioning the seat, preferably comprising a step of adapting the height of the seat 1. The seat 1 is moved by sliding the vertical upright 24 of the bracket 22, in the second longitudinal element 6. This sliding is illustrated by the arrow referenced B on the figure 2 . The locking in position of the seat 1 is advantageously achieved by rotation of the seat 1 around its longitudinal axis. This movement is illustrated by the arrow referenced C on the figure 2 .

Avantageusement, l'assise 1 comprend une poignée de préhension 25 facilitant le déploiement du siège.Advantageously, the seat 1 comprises a gripping handle 25 facilitating the deployment of the seat.

A l'inverse, le procédé comprend préférentiellement une étape d'escamotage du siège, d'une position d'utilisation à une position de rangement.Conversely, the method preferably comprises a step of retracting the seat, from a use position to a storage position.

Selon le mode de réalisation dans lequel le siège comprend un élément ressort permettant l'escamotage automatique, le fait que l'utilisateur cesse d'exercer un appui sur l'assise 1 suffit à enclencher les étapes d'escamotage du siège.According to the embodiment in which the seat comprises a spring element allowing automatic retraction, the fact that the user ceases to exert pressure on the seat 1 is sufficient to initiate the steps for retracting the seat.

L'étape d'escamotage du siège comprend le basculement du premier module dans un plan vertical suivant le sens de rotation dit sens d'escamotage 27, autour d'au moins un axe de rotation. Ce basculement est l'inverse de celui référencé A1. Le premier module se rapproche d'une position verticale dans laquelle les éléments longitudinaux 5 - 6 sont proches d'une position verticale. Simultanément au basculement du premier module, le procédé comprend le basculement du deuxième module dans un plan vertical identique ou parallèle au plan vertical dans lequel le premier module bascule. Ce basculement est l'inverse de celui illustré par la flèche référencée A2 sur la figure 2. La jambe d'appui 3 se rapproche du premier module suivant une rotation autour d'au moins un axe de rotation 13 -15.The step of retracting the seat includes the tilting of the first module in a vertical plane in the direction of rotation known as the direction of retraction 27, around at least one axis of rotation. This failover is the reverse of that referenced A1. The first module approaches a vertical position in which the longitudinal elements 5 - 6 are close to a vertical position. Simultaneously with the tilting of the first module, the method comprises the tilting of the second module in a vertical plane identical to or parallel to the vertical plane in which the first module tilts. This switchover is the reverse of that illustrated by the arrow referenced A2 on the figure 2 . The support leg 3 approaches the first module following a rotation around at least one axis of rotation 13 -15.

Avantageusement, l'étape d'escamotage comprend ensuite une étape de positionnement de l'assise comprenant de manière préférentielle une étape réduction de la hauteur de l'assise 1. Le déblocage de l'assise 1 est réalisé avantageusement par rotation de l'assise 1 autour de son axe longitudinal. Ce mouvement est l'inverse de celui illustré par la flèche référencée C sur la figure 2. Puis, l'assise 1 est déplacée par coulissement du montant vertical 24 de la potence 22 dans le deuxième élément longitudinal 6. Ce coulissement est l'inverse de celui illustré par la flèche référencée B sur la figure 2.Advantageously, the step of retracting then comprises a step of positioning the seat preferably comprising a step of reducing the height of the seat 1. The unlocking of the seat 1 is carried out advantageously by rotation of the seat 1 around its longitudinal axis. This movement is the reverse of that illustrated by the arrow referenced C on the figure 2 . Then, the seat 1 is moved by sliding of the vertical upright 24 of the stem 22 in the second longitudinal element 6. This sliding is the reverse of that illustrated by the arrow referenced B on the figure 2 .

REFERENCESREFERENCES

1.1.
AssiseSeated
2.2.
Support fixeFixed bracket
3.3.
Jambe d'appuisupport leg
4.4.
PiedsFeet
5.5.
Premier élément longitudinalFirst longitudinal element
6.6.
Deuxième élément longitudinalSecond longitudinal element
7.7.
Bielletteconnecting rod
8.8.
Bielleconnecting rod
9.9.
Premier axe de rotationFirst axis of rotation
10.10.
Deuxième axe de rotationSecond axis of rotation
11.11.
Troisième axe de rotationThird axis of rotation
12.12.
Quatrième axe de rotationFourth axis of rotation
13.13.
Cinquième axe de rotationFifth axis of rotation
14.14.
Sixième axe de rotationSixth axis of rotation
15.15.
Septième axe de rotationSeventh axis of rotation
16.16.
SolGround
17.17.
Contact surfaciqueSurface contact
18.18.
Contact surfaciqueSurface contact
19.19.
PattePaw
20.20.
ButéeStopper
21.21.
PlotPlot
22.22.
PotenceStem
23.23.
Traversecrosses
24.24.
Montant verticalupright
25.25.
PoignéeHandle
26.26.
Sens de déploiementDirection of deployment
27.27.
Sens d'escamotageRetraction direction
28.28.
Axe longitudinal du premier élément longitudinal en position de rangementLongitudinal axis of the first longitudinal element in the storage position
29.29.
Axe longitudinal du deuxième élément longitudinal en position de rangementLongitudinal axis of the second longitudinal element in the storage position
30.30.
Axe longitudinal du premier élément longitudinal en position d'utilisationLongitudinal axis of the first longitudinal element in the position of use
I.I.
largeur siègeseat width

Claims (15)

  1. A retractable seat comprising a sitting part (1) intended to receive a user's buttocks, the seat being configured to take up either a position of use wherein the seat is deployed such that the sitting part (1) can support the user's buttocks and a stowed position wherein the seat is retracted, the sitting part (1) not being able to receive the user's buttocks, said seat comprising:
    - a first module that is capable of moving in rotation in a vertical plane, comprising longitudinal elements configured to form a deformable quadrilateral, the first module being articulated about at least one rotary pin (9-10) mounted on a fixed support (2), configured such that, in the position of use, at least two longitudinal elements (5-6) are in surface contact (17), preventing the rotation of the first module in at least one direction of rotation, characterised in that the seat further comprises:
    - a second module that is capable of moving in rotation in the same vertical plane as the first module, comprising a support leg (3) configured to be in surface contact with the ground (16) in the position of use and a connecting rod (8) fixed at a first end to the first module and at a second end to the support leg (3), the second module being configured such that, in the position of use, the connecting rod (8) and the support leg (3) are in surface contact (18), preventing the rotation of the second module in at least one direction of rotation.
  2. Seat according to the preceding claim, wherein the first module comprises a first longitudinal element (5) and a second longitudinal element (6) respectively fixed at the lower ends thereof to the fixed support by a first rotary pin (9) and a second rotary pin (10), the first (9) and second (10) rotary pins being parallel.
  3. Seat according to the preceding claim, wherein the first longitudinal element (5) and the second longitudinal element (6) are connected to one another at the upper ends thereof by a link (7).
  4. Seat according to any one of the preceding claims, wherein the support leg (3) comprises a foot (4) extending transversely and allowing the support leg (3) to be supported by the surface of the ground (16).
  5. Seat according to any one of the preceding claims, wherein the connecting rod (8) is arranged in the upper part of the support leg (3) in an offset manner.
  6. Seat according to any one of the preceding claims in combination with claim 2, wherein the connecting rod (8) is fixed by a rotary pin (13) at one end to the first longitudinal element (5) and at the opposite end thereof to the support leg (3) by a rotary pin (14).
  7. Seat according to any one of the preceding claims, wherein the support leg (3) is fixed by a rotary pin (15) to the second longitudinal element (6) of the first module.
  8. Seat according to any one of the preceding claims, wherein the sitting part is mounted on a bracket (22) comprising a cross member (23) and a vertical member (24) mounted such that it can slide in the second longitudinal element (6) of the first module.
  9. Seat according to the preceding claim, wherein the vertical member (24) is configured such that it can move in rotation relative to the second longitudinal element (6) of the first module.
  10. Seat according to any one of the preceding claims, comprising a device for adjusting the height of the sitting part (1).
  11. Seat according to any one of the preceding claims, wherein the sitting part comprises a grasping element (25) allowing the sitting part (1) to be grasped by the user and to be moved into the position of use of the seat.
  12. Seat according to any one of the preceding claims, comprising a spring element allowing the seat to automatically return to the stowed position as soon as no force is applied to the sitting part (1).
  13. Method for using a seat according to any one of the preceding claims, comprising the following steps of:
    - deploying the seat from a stowed position to a position of use, comprising tilting the first module in a vertical plane according to a direction of rotation about at least one rotary pin (9-10) while simultaneously tilting the support leg (3) in the same vertical plane about a rotary pin (13) in a direction of rotation until the support leg (3) is in surface contact with the ground (16) and at least two longitudinal elements (5-6) of the first module are in contact with one another so as to prevent the rotation of the first module in at least one direction of rotation, and the support leg (3) and the connecting rod (8) thereof are in contact with one another so as to prevent the rotation of the second module in at least one direction of rotation.
    - retracting the seat from the position of use to the stowed position, comprising tilting the support leg (3) in the vertical plane about the rotary pin (13) in the opposite direction of rotation to that of the deployment step, while simultaneously tilting the first module in the same vertical plane in the opposite direction of rotation to that of the deployment step about the first rotary pin.
  14. Method for using a seat according to the preceding claim comprising, during the deployment of the seat, grasping the sitting part (1), causing the first module and the support leg (3) to tilt.
  15. Method for using a seat according to any one of the two preceding claims, comprising adjusting the height of the sitting part (1) by sliding and rotating the sitting part (1) relative to the second longitudinal element (6) of the first module.
EP19716185.4A 2018-04-19 2019-04-12 Retractable seat for a perched position Active EP3780997B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL19716185T PL3780997T3 (en) 2018-04-19 2019-04-12 Retractable seat for a perched position

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1853475A FR3080267B1 (en) 2018-04-19 2018-04-19 RETRACTABLE SEAT FOR A SITTING STANDING POSITION
PCT/EP2019/059393 WO2019201760A1 (en) 2018-04-19 2019-04-12 Retractable seat for a perched position

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EP3780997A1 EP3780997A1 (en) 2021-02-24
EP3780997B1 true EP3780997B1 (en) 2022-03-09

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EP (1) EP3780997B1 (en)
KR (1) KR102689367B1 (en)
CN (1) CN112118772B (en)
AU (1) AU2019254379A1 (en)
CA (1) CA3096755A1 (en)
DK (1) DK3780997T3 (en)
ES (1) ES2915626T3 (en)
FR (1) FR3080267B1 (en)
PL (1) PL3780997T3 (en)
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CN112118772B (en) 2024-03-29
US11382431B2 (en) 2022-07-12
KR102689367B1 (en) 2024-07-30
CA3096755A1 (en) 2019-10-24
FR3080267A1 (en) 2019-10-25
FR3080267B1 (en) 2020-04-24
ES2915626T3 (en) 2022-06-24
WO2019201760A1 (en) 2019-10-24
PL3780997T3 (en) 2022-06-27
EP3780997A1 (en) 2021-02-24
DK3780997T3 (en) 2022-06-13
PT3780997T (en) 2022-06-02
CN112118772A (en) 2020-12-22
US20210161298A1 (en) 2021-06-03
KR20210005105A (en) 2021-01-13
AU2019254379A1 (en) 2020-12-10

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