FR3138991A1 - ARMCHAIR WITH DEPLOYABLE SOUND INSULATION - Google Patents

Abstract

ARMCHAIR PROVIDED WITH DEPLOYABLE SOUND INSULATION The invention relates to an armchair (10) characterized in that it comprises: A base (20); A seat (30) defining a support surface for a user; A backrest (40) ) comprising a first interior three-dimensional surface (42) and a second exterior three-dimensional surface (44); An acoustic partition (50) comprising at least one thickness of acoustically insulating material, said acoustic partition (50) comprising at least one deformable portion (51 ) allowing passage from a retracted position in which said acoustic partition (50) rests on part of the second external three-dimensional surface (44), to an deployed position in which the acoustic partition (50) partially surrounds an area intended to be occupied by the head of an individual when the latter is seated in said seating device (10). Figure for abstract: Fig.1

Description

ARMCHAIR WITH DEPLOYABLE SOUND INSULATION Field of the invention

The invention relates to the field of sitting devices. More precisely, the invention concerns the field of armchairs, but also chairs or sofas. More generally, the invention concerns the field of furnishing, whether professional or domestic. The invention relates to the field of insulation or attenuation of acoustic noise.

State of the art

Armchairs and chairs allowing sitting are known from the state of the art. Such devices can take many forms and include backrests and generally have shapes meeting constraints concerning aspects of comfort for their user and/or aesthetics.

For users wishing to reduce surrounding noise to be quiet when they sit down, for example to read or work, certain solutions exist. For example, there are solutions like earplugs or noise-cancelling headphones. Such solutions, although very effective in reducing ambient noise, are nevertheless very uncomfortable for the user.

In particular, we know of armchairs which have a fixed outer shell which aims to partially deflect or absorb sound waves. In such devices, the shell at least partially envelops the area in which the user of the chair sits. Such devices, although effective in reducing the noise level for the user, have the disadvantage of systematically isolating the user from their environment. In addition, such devices are bulky and occupy a significant amount of space in the premises in which they are installed. As a result, they permanently cut lines of sight in such premises, which can be problematic in an open space for example.

We also know of the state of the art of armchairs in which a wall in the form of a “lampshade” absorbing sound waves is fixed on a mat itself fixed to the back of the armchair. The wall is itself movable in translation between two positions: a position in which the wall surrounds the head of the user who is seated in the chair, and another in which the wall is located above the head of the user. 'user. Such devices, although effective in terms of sound insulation, pose several problems for the user. Firstly, such devices are very bulky and take up a lot of space in the environment in which the chair is placed. Then, they cause a strong feeling of confinement for the user by encompassing their head and face, which is particularly problematic for claustrophobic people, for example. Finally, they do not allow sight lines in front of the user, which prevents them, for example, from working on a computer or reading.

The aim of the invention is to propose a device for sitting which overcomes the aforementioned disadvantages of the prior art.

The invention relates to a device for sitting which comprises:

• A base;
• A seat defining a support surface for a user;
• A file comprising an exterior three-dimensional surface;
• An acoustic partition comprising at least one thickness of acoustically absorbent or insulating material, said acoustic partition comprising at least one deformable portion allowing passage from a retracted position in which said acoustic partition rests on a part of the exterior three-dimensional surface, to a position deployed in which the surface of the acoustic partition partially surrounds an area intended to be occupied by the head of an individual when the latter is seated in said seating device.

The device for sitting according to the invention advantageously makes it possible to provide a means for a user to sit by providing him with a modular and adaptable solution allowing him to isolate himself acoustically from his environment when he wishes thanks to the partition acoustic when it is in the deployed position. In addition, the sitting device also makes it possible to provide a retracted position in which it rests on an external three-dimensional surface of the backrest, which makes it possible not to have an element protruding from the external surface of said armchair. In other words, the device allowing acoustic attenuation around the user's head can be retracted when this acoustic attenuation is not desired, thus freeing its volume. In this way, the seating device remains compact in the retracted position and provides good sound insulation in the deployed position.

According to one embodiment, the acoustic partition in the deployed position surrounds the area intended to be occupied by the head of a user at an angle of at least 180 degrees along a plane parallel to a plane on which the base rests.

According to one embodiment, the acoustic partition comprises at least one layer of foam, preferably polyethylene foam.

According to one embodiment, the acoustic partition comprises at least one layer comprising a core of polymer material and two external thicknesses of metallic material.

According to one embodiment, the acoustic partition comprises at least one layer comprising a plastic core and two external thicknesses of aluminum sheet.

According to one embodiment, the acoustic partition comprises an external layer comprising a polyethylene terephthalate felt.

According to one embodiment, the acoustic partition comprises a removable fixing means configured to cooperate with a removable fixing means of the backrest.

According to one embodiment, the removable fixing means of the acoustic partition comprises:

- At least one magnet configured to cooperate with a magnet in the backrest; and or

- At least one press button configured to cooperate with a press button on the backrest; and or

- At least one button configured to cooperate with a buttonhole on the backrest.

According to one embodiment, the acoustic partition comprises a set of planar elements of polygonal shape arranged within a flexible envelope comprising the acoustic partition comprising a plurality of deformable portions, said deformable portions forming:

- fold zones between two planar elements and;

- at least one main folding zone between at least one of the planar elements and the backrest.

According to one embodiment, the at least one main folding zone acts as a hinge between the backrest and the acoustic partition.

According to one embodiment, the main folding zone makes the connection between an insulation part forming the acoustic partition and at least one support fin comprising a support edge resting on the seat in the deployed position.

According to one embodiment, the insulation part is pressed onto the second exterior three-dimensional surface in the retracted position.

According to one embodiment, the acoustic partition comprises a deformable sheet forming a main section and a secondary section of said acoustic partition, the main section being fixed on the backrest, the secondary section being placed facing the second external three-dimensional surface in a retracted position; the secondary section forming an extension of the main section when the chair is in the deployed position.

According to one embodiment, the main section of the acoustic partition is fixed to the interior three-dimensional surface of the backrest and forms a layer of padding of said backrest.

Brief description of the figures

Other characteristics and advantages of the invention will emerge on reading the detailed description which follows, with reference to the appended figures, which illustrate:

: a perspective view of a device for sitting according to one embodiment of the invention in which the acoustic partition is in the deployed position.

: a perspective view of the device for sitting according to the invention in which the acoustic partition passes from the deployed position to the retracted position.

: a perspective view of the device for sitting on the represented without acoustic partition or comfort elements.

: a sectional view of the device for sitting on the in which the acoustic partition is in the retracted position.

: a perspective view of the device of the in which the acoustic partition is in the retracted position.

: a sectional view of part of the acoustic partition.

: a perspective view of a device for sitting according to a second embodiment of the invention in which the acoustic partition is in the deployed position.

: a perspective view of the device of the in which the acoustic wall is in the retracted position.

Description of the invention

The invention relates to a sitting device 10. By sitting device is meant any device allowing a user to sit on it. By sitting device we therefore mean a seat, an armchair, a chair, a stool, a bench, a sofa or any other device enabling the aforementioned function to be performed.

Figures 1 to 5 represent a first embodiment of the invention.

The sitting device 10 according to the invention comprises a base 20. By base 20 is meant any type of device or object allowing the sitting device 10 to rest on a flat or substantially flat surface. By this term we therefore mean an armchair leg or a plurality of legs allowing stable support for the device for sitting.

The seating device 10 comprises a seat 30. The seat 30 advantageously defines a support surface for the user. This support surface can take different shapes and geometry, a flat or substantially flat surface for example. According to one example, the seat can be curved to fit the shape of the user at the level of their seat. The seat can be covered with a cushion. It can also be covered with padding to improve the comfort of said seat for the user.

The sitting device 10 comprises a backrest 40. By backrest 40 we mean a rear part of the sitting device 10 against which the user can lean his back. By backrest 40, we mean both the structural element of the seating device 10 allowing the support of the user's back and any padding placed or fixed on said backrest 40 making it possible to improve the comfort of a such support. The backrest 40 includes an exterior three-dimensional surface 44. The exterior three-dimensional surface 44 defines an external envelope of said backrest. In other words, this exterior three-dimensional surface, or each part thereof, is oriented towards the exterior of the seating device 10. The backrest 40 has an interior three-dimensional surface 42. The interior three-dimensional surface defines an envelope interior of the sitting device 10. Advantageously, the interior three-dimensional surface 42 defines the surface on which the user's back rests when the latter sits on the device 10. Advantageously, this interior three-dimensional surface is covered with padding or a material to ensure resting comfort for the user's back. According to one embodiment, the interior three-dimensional surface 42 forms armrests for the user when the latter sits in the seating device 10.

The seating device 10 comprises an acoustic partition 50. The acoustic partition 50 comprises at least one thickness of acoustically absorbent or insulating material. Acoustically absorbent material means a material capable of attenuating the acoustic amplitude of an acoustic wave passing through it. Thus, the acoustic partition 50 significantly attenuates any acoustic wave attempting to pass through it. By acoustically insulating material, we mean any material capable of reflecting at least in part an incident acoustic wave arriving at its surface. Thus, the acoustic partition 50 significantly reflects an acoustic wave attempting to pass through it. Generally speaking, the acoustic partition 50 is made of one or more materials which make it possible to limit the propagation of acoustic waves or to attenuate them.

The acoustic partition 50 comprises at least one deformable portion 51. By deformable portion is meant a part of the partition, which can be of different shapes, which can be folded without being broken. The deformable portion 51 of the acoustic partition allows rotation or movement of at least part of said acoustic partition 50 between at least two positions. This movement or rotation of a part of the acoustic partition allows it to pass between two different positions of the partition 50. A first position is the deployed position of the acoustic partition 50. When the acoustic partition 50 is in the deployed position , it forms an acoustic wall or screen around the location where the head of a user who would be seated in the seating device 10 is located. According to one embodiment, the acoustic partition obstructs the space along 'an angle sector of at least 180 degrees around the location where the head of a user seated in the seating device 10 is located, in a plane substantially parallel or parallel to a surface on which the seat rests base 20 of the sitting device 10. In other words, the acoustic partition 50 partially surrounds the user's head on at least half of a circle surrounding his head when he is seated. According to one embodiment, the acoustic partition 50 in the deployed position surrounds the head of the user, when the latter is seated, on at least half of the surface of a cylinder of revolution, said cylinder comprising an axis of revolution which is substantially parallel to a normal to the surface on which the seating device 10 rests. According to one embodiment, the acoustic partition 50 in the deployed position surrounds the user's head, when the latter is seated, on at least half of the surface of a sphere substantially centered around the user's head .

A second position of the acoustic partition 50 is a retracted position in which said acoustic partition 50 rests on the exterior three-dimensional surface 44. In other words, the acoustic partition 50 is pressed against the exterior three-dimensional surface 44 of the backrest 40 when it is in the retracted position. As a result, the acoustic partition 50 matches the exterior three-dimensional surface 44 in this case.

Thus, the seating device 10 according to the invention makes it possible to provide acoustic insulation to the user when the acoustic partition is in the deployed position. Likewise, the acoustic partition 50, which is in the retracted position placed on the exterior three-dimensional surface 44, is discreet and does not occupy space when said partition is in the retracted position.

According to one embodiment, the acoustic partition 50 comprises at least one layer of air-permeable material, preferably a light and/or porous material. According to one embodiment, the acoustic partition comprises at least one layer of light and/or porous material. Such a material has the advantage of absorbing acoustic waves.

According to one embodiment, the acoustic partition comprises at least one layer of foam. Foam has the advantage of being a material that absorbs acoustic waves. In addition, foam has the advantage of being a soft material which is comfortable for a user. According to one embodiment, the foam is a polyethylene foam. According to one embodiment, the foam is made of wool, preferably of wool of animal origin. According to one embodiment, the wool is hemp wool. According to one embodiment, the foam is made of felt. According to one embodiment, the foam is made of cotton. According to one embodiment, the foam is made from recycled clothing. According to one embodiment, the foam is made of latex, preferably a perforated latex.

According to one embodiment, the acoustic partition includes a textile covering. The textile covering is preferably one or more sections of fabric which preferably surround the foam. The advantage of a fabric covering is that it contains the foam and provides additional sound absorption.

According to one embodiment, the acoustic partition comprises at least one layer comprising a core of polymer material. The advantage is to allow the formation of one or more panels in the acoustic partition 50 and therefore to provide rigidity allowing in particular to produce a particular shape of acoustic partition 50, particularly when it is in the deployed position. According to one embodiment, the polymer material of the core is a plastic material. A plastic material makes it possible to obtain at least partial reflection of an external acoustic wave and therefore to prevent it from reaching the user who is seated in the device 10. According to one embodiment, the foam layer is placed on one side of the acoustic partition which is oriented towards the interior of the device for sitting 10 when the acoustic partition is in the deployed position. Thus, the foam layer is on a part which is oriented towards the user when the latter is seated in the device 10. This arrangement makes it possible to provide acoustic absorption inside the cocoon formed by the acoustic partition when the device is in the deployed position. According to one embodiment, the core made of polymer material is located on a surface which is oriented towards the outside of the device 10 when it is in the deployed position. This arrangement makes it possible to provide a reflection of acoustic waves arriving from the outside and therefore to protect the user who is seated. According to one embodiment, the core is made of wood. According to one embodiment, the core is made of dense, airtight material.

According to one embodiment, the layer comprising a core of polymer material comprises at least one outer layer of metallic material. This arrangement allows for better sound insulation. According to one embodiment, this core comprises two external layers of metallic material. According to one embodiment, the core is made of plastic material. According to one embodiment, the external layer(s) are made of aluminum.

According to one embodiment, the acoustic partition 50 comprises at least one removable fixing means configured to allow the acoustic partition 50 to be maintained in the retracted position and/or in the deployed position. According to one embodiment, the acoustic partition 50 comprises at least one magnet. According to this embodiment, the file also includes at least one magnet. Bringing the two magnets together allows the partition 50 to be positioned and maintained relative to the backrest 40 to prevent relative movement of the partition relative to the backrest 40. According to one embodiment, the removable fixing means comprises at least a snap button for the backrest 40 and a snap button for the acoustic partition. According to one embodiment, the removable fixing means comprises at least one button arranged on the backrest 40 and a buttonhole located on the acoustic partition 50. According to one embodiment, the removable fixing means comprises at least one button located on the acoustic partition 50 and a buttonhole located on the backrest 40. According to one embodiment, the acoustic partition 50 comprises two fixing means (which can be snap buttons, buttonholes or magnets) which cooperate with two means of fixing the backrest 40. According to one embodiment, the fixing means comprises at least one textile hook and loop type fixing system. Such a system is otherwise called “scratch”. Such a method of fixing allows quick and easy fixing of the acoustic partition with the backrest and/or the seat.

According to one embodiment, the acoustic partition 50 of the seating device 10 comprises a set of planar elements 52. These planar elements 52 are advantageously polygonal in shape. The planar elements 52 are preferably arranged within a flexible envelope. The flexible envelope is preferably made of textile material, but other materials can be considered. The acoustic partition comprises a plurality of deformable portions 51. Preferably, these deformable portions 51 are located between the planar elements 52. These deformable portions 51 define a set of fold zones between the planar elements 52. This arrangement advantageously makes it possible to define a acoustic partition 50 which is foldable according to each of the folding zones. In this way, the acoustic partition 50 can be folded when it is desired to move the device 10 from the deployed position to the retracted position and vice versa. There represents a cross-sectional view of an acoustic partition 50 at a fold zone 51. The acoustic partition 50 is defined by two or more planar elements 52. The planar elements 52 are substantially rigid or have a rigidity allowing them to maintain a substantially planar shape during their manipulation. The acoustic partition 50 comprises a flexible envelope 56 which is preferably made of textile material. The flexible envelope 56 preferably comprises at least two walls which encompass or surround the planar elements 52. Between two planar elements 52, the two walls of the flexible envelope meet at the level of the fold zone 51. Given that it only the flexible envelopes remain at this zone 51, the latter is therefore capable of folding to allow the rotation of a planar element 52 relative to the other planar element 52. Advantageously, a layer of foam 60 is located between the planar element 52 and the flexible envelope 56. Advantageously, the foam layer 60 is located on a part of the wall which is directed towards the user when the latter is seated on the device for sit 10 when it is in the deployed position. According to one embodiment, the flexible envelope 56 is made of organic material, preferably leather. According to one embodiment, the flexible envelope 56 is a polymer coating. According to one embodiment, the flexible envelope 56 is made of treated textile material, in particular treated to resist outdoor weather conditions.

According to one embodiment, the acoustic partition 50 comprises a main folding zone 53. By main folding zone 53 is meant a deformable portion 51 which passes right through the acoustic partition 50 and allows it to be separated into at least two parts , movable in rotation relative to each other around the main folding zone 53. According to one embodiment, the main folding zone interfaces between the acoustic partition 50 and the backrest 40. Advantageously, the folding zone main fold 53 acts as a hinge between the acoustic partition 50 and the backrest 40. According to one embodiment, the main fold zone 53 separates an insulation part 55 of the acoustic partition 50 from at least one support fin 54 of said acoustic partition. The support fin 54 is shown in hatched form in Figures 1, 2 and 5. According to one embodiment, and as shown in Figures 1, 2 and 5, the acoustic partition 50 comprises two support fins 54. These fins support 54 are located on lateral portions of the acoustic partition 50. The support fins 54 each include a support edge 541. By support edge 541 is meant an edge of the support fin 54 which is intended to serve as support for said support fin 54 in the retracted position and/or in the deployed position. The support edge 541 forms an edge bearing against a surface of the seat 30 of the seating device 10 and thereby allowing the acoustic partition 50 to be maintained in the deployed position. Advantageously, the support edge 541 forms an edge bearing against a surface of the seat 30 of the seating device 10 and thereby allowing the acoustic partition 50 to be maintained in the retracted position. Advantageously, each support fin has at least two support edges 541. The two support edges 541 advantageously form an angle between them in order to follow the shape of the backrest 40 and/or the seat 30 in order to rest on the better on it in the retracted position. According to one embodiment, the support fin(s) 54 are crossed by at least one fold zone 51. According to one embodiment, the acoustic partition 50 comprises an insulation part 55. By insulation part is meant the part of the acoustic partition 50 which will provide acoustic insulation when the acoustic partition 50 is in the deployed position. In other words, the insulation part 55 is the part of the acoustic partition 50 which projects from the backrest 40 when the acoustic partition 50 is in the deployed position. The insulation part 55 is the part of the acoustic partition 50 which does not appear hatched in Figures 1, 2 and 5. According to one embodiment, the insulation part 55 comprises at least one deformable portion 51 of the acoustic partition 50, said portion 51 forming a fold zone allowing the folding of said insulation section 55. According to one embodiment, the insulation part 55 is crossed by at least one fold zone 51.

Advantageously, the support edge 541 also rests at least partly on the interior three-dimensional surface 42 of the backrest 40 when the acoustic partition 50 is in the deployed position. Advantageously, the support edge 541 also rests at least partly on the interior three-dimensional surface 42 of the backrest 40 when the acoustic partition 50 is in the retracted position. This arrangement allows more stability of the acoustic partition in the deployed and retracted position. According to one embodiment, the support edge 541 rests in a recess of the interior three-dimensional surface 42 formed by the intersection of two planes of said interior three-dimensional surface 42 when the acoustic partition is in the retracted position and/or in position unfolded. In other words, the support edge 541 rests at least in part on a fillet of the interior three-dimensional surface 42 of the backrest 40. This arrangement makes it possible to wedge the support fin 54 into contact with the backrest. The support fin(s) 54 also rest on the interior three-dimensional surface 42. More specifically, surfaces of the support fin 54 rest on the interior three-dimensional surface 42 when the acoustic partition 50 is in the deployed position. This arrangement makes it possible to increase the stability of the partition thanks to the surface supports which hold said acoustic partition 50 in position. According to one embodiment, the insulation part 55, in conjunction with the support fin(s) 54 in surface support on the interior three-dimensional surface 42, form bracing allowing good mechanical strength of the acoustic partition 50 in the deployed position.

According to one embodiment, the backrest 40 comprises padding covering at least partly the interior three-dimensional surface 42. This padding makes it possible to increase the comfort provided by the sitting device 10. According to one embodiment, the padding comprises shapes allowing the reception of the support edge 541 of the support fin 54. This reception form makes it possible to maintain the support edge 541 when the acoustic wall 50 is in the deployed position and/or in retracted position.

According to one embodiment, the main folding zone 53 acts as a hinge between the acoustic partition 50 and the backrest 40 of the seating device 10.

According to one embodiment, the acoustic partition 50 is linked to the padding of the backrest 40 by the main folding zone 53.

According to one embodiment, the insulation part 55 rests on the exterior three-dimensional surface 44 of the backrest 40 when the partition is in the retracted position. In other words, the surface of the insulation part 55 is oriented facing the exterior three-dimensional surface 44 and preferably in contact with the latter when the acoustic partition is in the retracted position. This arrangement makes it possible to reinforce the stability of the device 10 in the retracted position, because in this position the partition encloses at least partly the backrest 40 of the sitting device 10. In addition, this arrangement makes it possible to increase the compactness and the discretion of the acoustic wall 50 in the retracted position.

We will now describe the transition from the retracted position to the deployed position of the device for sitting 10 in support of Figures 1 to 5.

When the seating device 10 is in the retracted position, as shown in , the two support fins 54 are located in support of the interior three-dimensional surface 42 of the backrest 50. The insulation part 55 is for its part located in contact with the exterior three-dimensional surface 44 of the backrest 40. In this position, the user of the device 10 can grasp the support fins 54 of the partition 50 and rotate them around the main fold zone 53 relative to the insulation part 55. This rotation makes it possible to release the support fins 54 from the interior three-dimensional surface 42 and therefore to release the acoustic partition 50 from the backrest 40. In this way, the partition 50 is free to rotate around the main folding zone 53 relative to the backrest 40 of the seating device 10. The acoustic partition is itself deformable thanks to a network of deformable portions 51 thereof. This network makes it possible to reverse the main curvature of said acoustic partition 50 in order to go from the visible curvature to to that visible in . Once the curvature of the acoustic partition 50 is reversed, the partition is pivoted around the backrest 40 at an angle of approximately 180 degrees around the main folding zone 53 forming the hinge between the partition 50 and the backrest 40. This rotation is carried out until it brings into contact the support edges 541 of the support fins 54 in contact with the zone on which they will rest on the interior three-dimensional surface 42 of the backrest 40. In this way, the acoustic partition 50 is as if turned upside down around the backrest 40 between two positions, one retracted and the other deployed, the two positions being positions in which the partition is in stable balance relative to the backrest 40. The stability of the balance of each position is ensured by the geometry of the partition in each of these positions, the rigidity of the planar elements 52 allowing mechanical strength in said position.

According to one embodiment, the acoustic partition 50 of the seating device 10 according to the invention comprises a deformable sheet 59. Figures 7 and 8 illustrate a seating device 10 which comprises the deformable sheet 59. The deformable sheet 59 is configured to be deformable on at least part of its surface. By deformable, we mean that the deformable sheet 59 can be folded, or even folded back on itself. The deformable sheet 59 has a main section. The main part is fixed or attached to the backrest 40 of the seating device 10. According to one embodiment, the main part is fixed to the interior three-dimensional surface of the backrest 40. The deformable sheet 59 includes a secondary part. The secondary section of the deformable sheet 59 is a part of the sheet which is capable of being deployed above the backrest 40. The secondary section is capable of being placed in a retracted position in which the secondary section does not project from the backrest 40. In other words, in the retracted position, the secondary panel faces the exterior three-dimensional surface 44 of the backrest 40. The secondary panel rests in the retracted position on the exterior three-dimensional surface 44 of the backrest 40, as shown in .

When the seating device 10 is in the deployed position, the secondary section of the deformable sheet 59 is included in the extension or substantially in the extension of the backrest 40 of the device 10. In other words, the backrest 40 forms a surface support for the user's back, and the deformable sheet 59 is located in the extension of said support surface for the user's back.

According to one embodiment, the deformable sheet 59 comprises at least on part of the main section a thickness of padding. By padding thickness we mean a thickness of foam or material having low rigidity arranged on the surface, or directly below the surface of the main panel. In this way, the part of the main part of the deformable tablecloth 59 which is in contact with the user's back is soft, which makes it possible to increase comfort for the user of the sitting device 10.

We will now describe the deployment and retraction of the acoustic partition 50 of the seating device 10 which includes a deformable sheet 59.

We start here from the deployed position (as presented in ) in which the secondary section of the acoustic partition is in a deployed position in which it is in the extension of the interior surface 42 of the backrest 40. In this position, the acoustic partition 50 forms a wall allowing attenuation of sound waves heading towards the position in which the user's head would be if he were seated in the device 10. When the user wishes to tilt the device 10 into the retracted position, he grasps the secondary section of the deformable sheet and retracts it around the backrest 40 so that the acoustic partition 50 passes into the retracted position (as presented in ). In other words, the deformable sheet 59 is rolled up on either side of the backrest 40 of the seating device 10. As the sheet is deformable over the entire surface of the secondary panel, then it can easily be folded to move from the extended position to the retracted position. To move from the retracted position to the deployed position, the deformable sheet is simply unrolled to be placed in the extension of the interior surface 42 of the backrest.

According to one embodiment, the acoustic partition comprises at least one removable fixing means. The removable fixing means is configured to allow the acoustic partition 50 to be maintained in the retracted position and/or in the deployed position. For example, the removable fixing means comprises a first element located on the acoustic partition 50. The fixing means comprises a second element located on the backrest 40 or on the seat 30 of the seating device 10. The first element and the second element are configured to cooperate together and thus fix in position the acoustic partition 50 and the backrest and/or the seat together. Advantageously, the removable fixing means prevents, when engaged, the rotation of the acoustic partition relative to the backrest and the seat.

According to one embodiment, the first element of the fixing means 10 comprises a magnet and the second element of the fixing means comprises a magnet. In this way, a removable fixing is made between these two elements which keeps the acoustic partition fixed in relation to the backrest and/or the seat.

According to one embodiment, the removable fixing means comprises a press button. According to this embodiment, the fixing between the acoustic partition and the backrest and/or the seat is carried out by bringing the two parts of the pressure button into contact.

According to one embodiment, the fixing means comprises at least one button and a buttonhole. According to one embodiment, the first element of the fixing means comprises the button and the second element comprises the buttonhole. According to one embodiment, the first element of the fixing means comprises the buttonhole and the second element comprises the button.

According to one embodiment, the fixing means comprises at least one textile hook and loop type fixing system. Such a system is otherwise called “scratch”. Such a method of fixing allows quick and easy fixing of the acoustic partition with the backrest and/or the seat.

According to one embodiment, the device 10 comprises at least two fixing means. For example, a first fixing means is placed on a first side of the acoustic partition to cooperate with the same first side of the backrest and/or the seat and the second fixing means is placed on a second side of the acoustic partition opposite the first side, to cooperate with the same second side of the backrest and/or the seat. According to one embodiment, each side of the acoustic partition comprises two fixing means, one allowing it to be maintained when the partition is in the retracted position and the other allowing it to be maintained when it is in the deployed position.

Nomenclature :

10: device for sitting

20: base

30: sitting

40: folder

42: interior three-dimensional surface

44: external three-dimensional surface

50: acoustic partition

51: deformable portion of the acoustic partition

52: planar element

53: main folding zone of the acoustic partition

54: support fin

541: support edge of the support fin

55: insulation part

56: flexible envelope

57: soul

58: external thickness

59: deformable tablecloth

60: foam

Claims (14)

Device for sitting (10) characterized in that it comprises:

• A base (20);
• A seat (30) defining a support surface for a user;
• A backrest (40) having an exterior three-dimensional surface (44);
• An acoustic partition (50) comprising at least one thickness of acoustically absorbent or insulating material, said acoustic partition (50) comprising at least one deformable portion (51) allowing passage from a retracted position in which said acoustic partition (50) rests on a part of the outer three-dimensional surface (44), at an deployed position in which the surface of the acoustic partition (50) partially surrounds an area intended to be occupied by the head of an individual when the latter is seated in said device to sit (10).

Device (10) according to the preceding claim in which the acoustic partition (50) in the deployed position surrounds the area intended to be occupied by the head of a user at an angle of at least 180 degrees along a plane parallel to a plane on on which the base (20) rests. Device (10) according to any one of the preceding claims in which the acoustic partition (50) comprises at least one layer of foam, preferably polyethylene foam. Device (10) according to any one of the preceding claims in which the acoustic partition (50) comprises at least one layer comprising a core of polymer material and two external thicknesses of metallic material. Device (10) according to any one of the preceding claims in which the acoustic partition (50) comprises at least one layer comprising a plastic core and two external thicknesses of aluminum sheet. Device (10) according to any one of the preceding claims in which the acoustic partition (50) comprises an external layer comprising a polyethylene terephthalate felt. Device (10) according to any one of the preceding claims in which the acoustic partition comprises a removable fixing means configured to cooperate with a removable fixing means of the backrest (40). Device (10) according to the preceding claim in which the removable fixing means of the acoustic partition comprises:

• At least one magnet configured to cooperate with a magnet of the backrest (40); and or
• At least one press button configured to cooperate with a press button of the backrest (40); and or
• At least one button configured to cooperate with a buttonhole of the backrest (40).

Device (10) according to any one of the preceding claims in which the acoustic partition (50) comprises a set of planar elements (52) of polygonal shape arranged within a flexible envelope (56) comprising the acoustic partition (50). ) comprising a plurality of deformable portions (51), said deformable portions (51) forming:

• fold zones between two planar elements (52) and;
• at least one main folding zone (53) between at least one of the planar elements and the backrest (40).

Device (10) according to the preceding claim in which the at least one main folding zone (53) acts as a hinge between the backrest (40) and the acoustic partition (50). Device (10) according to the preceding claim in which the main folding zone (53) makes the connection between an insulation part (55) forming the acoustic partition and at least one support fin (54) comprising a support edge resting on the seat (30) in the deployed position. Device (10) according to the preceding claim in which the insulation part (55) is pressed against the second external three-dimensional surface (44) in the retracted position. Device (10) according to any one of claims 1 to 5 in which the acoustic partition (50) comprises a deformable sheet (59) forming a main section and a secondary section of said acoustic partition (50), the main section being fixed on the backrest (40), the secondary panel being placed facing the second exterior three-dimensional surface (44) in a retracted position; the secondary panel forming an extension of the main panel when the chair (10) is in the deployed position. Device (10) according to the preceding claim in which the main part of the acoustic partition (50) is fixed to the interior three-dimensional surface (42) of the backrest (40) and forms a padding layer of said backrest (40).