FR2855728A1 - RELAXATION SEAT COMPRISING A FLEXIBLE SUPPORT MEMBER OF THE USER COMPLETELY FITTED BY A FOLDER AND A SEAT JOINED THEREWITH AND MOUNTED MOUNTED IN A SLIDING ON A CHASSIS - Google Patents

Abstract

The seat has a base component (13) and a backrest component (14) articulated at their connection edges for allowing variation of dihedral angle. The angle is formed between the components to receive users body. Each component has a curved zone to maintain a flexible support unit (2) at a distance from a carrier structure (1), above the component (13) and in front of the component (14), when the user is seated.

Description

Relaxation seat comprising a flexible support member

  the user jointly carried by a folder and a seat hinged together and

  mounted mobile sliding on a frame.

Technical Field of the Invention

  The invention is in the field of furniture and more particularly the field of seats mainly comprising a seat and a folder 10 delimiting between them a dihedron to receive the body of the user.

  It relates to a relaxation seat arranged to vary the angle of the dihedron formed between the seat and the backrest, from a movement of the body of the user installed on the seat.

State of the art

  Recall that a seat is currently composed of a seat and a folder delimiting between them a dihedron to receive the body of the user.

  Among the seats, those of relaxation are more particularly known organized to allow the angle of the dihedron to be varied, in order to adapt it extemporaneously to the comfort desired by the user.

  Usually, the seat comprises two pivotally articulated elements relative to each other and respectively assigned to the seat and the backrest of the seat. Easily reversible immobilization means make it possible to maintain the seat and / or the backrest at different inclinations desired by the user, depending on the more or less elongated station in which he wishes to be supported by the seat.

  According to a first type of relaxation seat, it is mainly composed of a chassis carrying rigid elements respectively forming the seat and the backrest. At least one of these elements is supported in an articulated manner by the frame, to give the rigid elements mobility in relative inclination relative to each other.

  According to a second type of relaxation seat, a support member of the body of the user is a flexible member, such as a fabric or the like, forming the seat and the backrest. This fabric is attached to each of its base ends 10 and vertex on rigid elements of a frame, respectively assigned to support the seating area and the backrest area of the fabric. These rigid elements are articulated to each other in their central zone to jointly bear the ground and to allow to change the general orientation of the fabric relative to the rest plane of the seat on the ground. A problem posed for relaxation seats lies in the faculty offered to the user to easily and quickly change the angle of the dihedron defined by the seat and backrest. More precisely, such an angle modification can be restrictive, both with regard to the operation aimed at adjusting the amplitude of this angle, and with the operation of immobilizing the moving elements.

Object of the invention

  The object of the present invention is to provide a relaxation seat with the possibility of rapidly changing the angle of the dihedron formed between the seat and backrest elements of the seat, and to maintain them in position, from a simple and unique movement operated naturally by the user 30 with his body against these elements.

  The relaxation seat of the present invention is a seat which comprises a seat element and a backrest element arranged in the extension of one another so as to delimit between them a dihedron of reception of the body of the user. . The seat and back elements are supported by a chassis 5 of rest of the seat on the ground, being pivotally mounted relative to each other, to allow the user to vary the angle of the dihedron. For this purpose, the chassis comprises means for moving the guide of at least one of the seat and backrest elements, and immobilization means for holding them in a respective orientation relative to one another. According to the present invention, a relaxation seat comprising the abovementioned arrangements is mainly recognizable in that the seat and backrest elements are abutted and are articulated to one another at their corresponding edge, so as to constitute together a structure carrier of a flexible body support member of the user. This flexible support member is attached at its corresponding ends to the free base edge of the seat member and to the free edge of the top of the backrest member. It will be understood that these free edges are those opposite to the hinge edges of the seat and back elements to one another. The mobility guiding means of the seat and back elements consist of rails fixed to the frame, which delimit guideways for sliding members respectively assigned to the seat and backrest elements.

  The seat member is provided with a pair of sliding members, which run along respective and concurrent guide paths delimited by the corresponding rail.

  These arrangements are such that the user bearing against the seat member and the backrest element of the supporting structure via the flexible support member, causes a sliding of the one and the other of the seat member and the backrest member along the corresponding rail, from a concomitant deformation of the flexible support member.

  In addition, these provisions are such that the immobilizing means for maintaining the seat and back elements in a respective orientation, results from the antagonism of the support that take the sliding members of the seating element. and the back member against the corresponding guide rail, from their respective guide path along the latter.

  These provisions are also such that the angle variation of the dihedron is a continuous value variation between the extreme positions of the corresponding seat and backrest elements respectively to extension and retraction positions of the supporting structure.

  It follows from these provisions that the relaxation seat proposed by the present invention provides a suitable comfort. This comfort results from the support of the user's body by a flexible member. This comfort also results from the faculty offered a continuous value variation of the angle of the dihedron delimited between the seat and the back of the seat. This comfort results still and especially from the simplicity and ease of the operation to change the angle of the dihedron, obtained from a simple support of the pelvis and / or the back operated by the user against the corresponding element 20 of the carrier structure via the flexible support member. Such support naturally causes not only said angle variation, but also an immobilization in any position of the seat and back elements relative to the frame.

  It will be noted that the sliding members of the seat and back elements also constitute and advantageously stop members at the end of the corresponding rail, against the stroke of the seat and back elements, respectively in extreme positions. the supporting structure of extension and withdrawal.

  The seat and backrest members preferably comprise at least one inflection between their respective base and crown edges, to which edges are fixed the flexible support member, and their hinge edge to each other.

  These arrangements are such that the flexible support member is kept remote from the seat and back elements, including when the user is installed in the seat. s

  Said inflection is in particular located in the vicinity of the fixing edge of the support member of at least one of the corresponding elements of the seat and back of the supporting structure, this neighborhood being particularly desired for the seat element .

  It will be understood that the flexible support member being used to constitute the slidable actuator of the seat and back elements on the frame, the inflections of these elements in the vicinity of their edge which is fixed at the end Correspondingly, the flexible support member promotes the deformation and mobility of the latter, such as swaying and sagging. Such deformation and mobility allow an accompaniment by the flexible support member of the movements of the body of the user during the maneuver of the carrier structure, which is thus avoided having to directly support.

  According to a preferred embodiment, the rail assigned to the backrest element is fixed to the frame in an area corresponding to the median area of the backrest element located between its edges respectively of vertex and articulation to the element. seat. More particularly, the guide zone of the backrest element via the corresponding guide rail is situated between the user's support zones on the flexible support member, and in particular under the zone of the support member. back support and above the pelvic support area.

  The rail assigned to the backrest element is in particular a substantially rectilinear rail inclined relative to the rest plane of the chassis on the ground, at an angle of the order between 45 and 55.

  The guide rail assigned to the seat member is, according to a first variant, a curved single rail along which a pair of remote sliding members runs.

  According to a second variant, this guide rail is composed of two elementary rails 5, one before and one rear to the seat, along which elementary rails circulate sliding members of the seat element which are respectively affected. These elementary rails for guiding the seat element are substantially rectilinear and inclined in opposition to one another, at an angle of the order between 5 and 15 with respect to the rest plane of the seat. chassis on the ground.

  The rear elementary rail is notably inclined relative to the rest plane of the chassis on the ground by an angle of the order between 5 and 9, while the front elementary rail is inclined relative to the rest plane of the chassis on the ground, in contrast to the inclination of the rear elementary rail, an angle of the order between 2 and 6.

  The front elementary rail is preferably bent forwards at an angle of the order between 8 and 12, relative to the rest plane of the chassis on the ground, to give the carrier structure a tilting effect towards the vehicle. back concomitantly with its extension.

  According to an exemplary embodiment relating to a seat of common dimensions, the rear elementary rail has a length of the order of 310 mm, the front elementary rail has a length of the order of 320 mm, and the backrest rail has a length of the order of 220 mm.

  It will be understood that the various values of angle and dimension of the guide rails are given for information only, and that it should be understood that a variation in the dimensions of the carrier structure results in corresponding variations of the said values. angle and dimension.

  According to various embodiments of the flexible support member, that is for example consisting of a fabric or the like, or a web such as braided straps or composed of transverse slats carried by side straps.

  According to a particular embodiment of the flexible support member, it is composed of rigid elements shaped frame freely articulated to each other. The interior spaces delimited by the frames are respectively dressed with elastically deformable members, such as springs or slats. It will be understood that these alternative embodiments are exemplified.

  It will be noted that the flexible support member may be constituted by other similar embodiments, the desired structural qualities being to be deformable between its base and vertex ends through which it is attached to the supporting structure, for transmitting to the corresponding edges of the seat and back elements the tensions to which the flexible support member is subjected under the effect of the support that the user takes against the latter.

  According to an optional specific embodiment of the seat of the invention, the latter further comprises the following provisions, taken alone or in combination: 1) The seat comprises accessory means for locking the carrier structure in any one of of its positions, to prohibit a spontaneous modification of the angle of the dihedral when the seat is unoccupied. It will be understood that this spontaneous modification is likely to occur under the effect of a support exercised at the top of the seat by an inattentive person when the supporting structure is in the folded position. These locking means are in particular constituted by an obstacle member. sliding of the seat element on the frame, or even by a cooperation between two cooperating interlocking members respectively supported by the supporting structure and the frame, said cooperation being implemented from a voluntary gesture of the when leaving the seat.

  2) The seat comprises accessory means for assisting in the sliding movement of the seat and back elements along the rails which are assigned to them.

  For example, an electric jack is interposed between the frame on which it is fixed, by clipping for example, and a support beam formed on the seat element. It should be noted that these provisions are intended to assist physically handicapped or disabled persons, without however derogating from the general rule of the invention as set out with regard to the relative mobility between the seat and backrest elements in relation to the frame.

Description of the figures.

  The present invention will be better understood, and details will appear in the description which will be made in connection with the figures of the attached plates, in which Fig.1 and fig.2 are perspective illustrations of a flexible support member participating in a relaxation seat of the present invention, according to different respective embodiments.

  Fig.3 is a perspective illustration of a supporting framework participating in a relaxation seat of the present invention, according to an exemplary embodiment.

  Fig.4 and Fig.5 are side diagrams illustrating a relaxation seat of the present invention, according to various respective embodiments.

  Fig.6 to Fig.10 are side diagrams of the seat shown in Fig.5, respectively illustrating different successive positions of the seat between its extreme positions of folding and extension.

  In fig.4 and fig.5, a relaxation seat of the present invention is mainly composed of a frame supporting a supporting structure 1 of a flexible support member 2 of the body of the user.

  It will be noted that the frame, not shown in the figures, is a frame 10 usual in the field formed from walls assembled together to delineate an overall volume of the seat. According to the present invention, the overall volume delimited by the chassis is a receiving volume of a mobile assembly composed of the supporting structure 1 of the flexible support member 2.

  In FIGS. 1 and 2, the flexible support member 2 consists of a deformable wall between its base ends 3 and vertex 4, the latter 3 and 4 being equipped with fastening members, such as 5, to the supporting structure 1. It will be noted that the deformability of the flexible support member 2 is in particular a deformability of its overall surface in a plane orthogonal to the rest plane of the seat on the ground.

  In Fig.1, the flexible support member 2 is composed of two frames 6 and 7 articulated to each other. The internal space of each of the frames 6 and 7 is dressed with suspension elements anchored at their lateral edges on the uprights of the frames 6 and 7. For the upper frame 6, these suspension elements consist of cables 8 arranged in spring, while for the other, the suspension elements consist of slats 9. It will be understood that these elements 8 and 9 are described by way of non-limiting examples, and that they can be indifferently transposed from one to the other of the frames 6 and 7. In FIG. 2, the supple support member 2 is composed of laths 10, 11 assembled together by lateral straps 12.

  In FIG. 3, the supporting structure 1 is generally shaped as a pair of seat elements 13 and backrest 14 each arranged in a frame and arranged in the extension of one another so as to delimit a dihedron of receiving the body of the user.

  These seat elements 13 and back 14 are articulated to each other at their adjacent edges 16 and 17, to allow a variation of the angle of the dihedron they delimit jointly. The flexible support member 2 is provided to be fixed to the corresponding edges of the seat elements 13 and backrest 14, respectively base 18 and crown 19, opposite their edges 16 and 17 10 articulation one to the other.

  Each of the seat elements 13 and backrest 14 is equipped with sliding members 20 and 21,22, such as rollers, sliders or the like.

  It will be noted that for the same sliding member, it may be composed of several elementary sliding members associated. It will be understood that these sliding members 20,21,22 are attached to each of the lateral edges of the seat elements 13 and backrest 14 to cooperate with respective rails 23 and 24, as will be described later. It will now be noticed that the seat element 13 comprises a pair of remote sliding members 21 and 22 which are attached to one of its lateral edges, whereas the back element 14 only comprises one 20.

  In FIGS. 4 and 5, the chassis of the seat is equipped with guide rails 23 and 24 with sliding members 20, 21 and 22 that comprise the seat elements 13 and the backrest 14, including a guide rail. guide 23 for the back member 14 and a guide rail 24 for the seat member. The guide rail 23 of the back member 14 defines a single guide path for the corresponding slide member 20, while the guide rail 24 of the seat member 13 defines two intersecting paths for guidance. respective remote guide members 21 and 22 of the couple that comprises the seat member 13.

  Note that on the embodiment shown in Fig.4, the guide rail 24 assigned to the seat member 13 is unique and curved, while the embodiment shown in Fig.5, the rail 24 of the guide member assigned to the seat member 13 is composed of two elementary guide rails 25 and 26, one rear 26 and the other front 25.

  The guide rail 23 assigned to the back member 14 is inclined relative to the seat rest plane, or by analogy of the chassis, the ground at an angle D of 45 to 55, for a length of 220 mm.

  It will be noted that this length and angle of inclination of the guide rail 23 of the backrest element 14 are determined by taking into account, firstly, the space requirements of the seat, this guide rail 23 to be hidden by the chassis secondly, the length and the inclination of the guide rail 24 of the seat element 13, in particular those of the elementary guide rails 25 and 26 which compose it, and thirdly the position of the various elements of sliding 20,21,22 that includes the carrier structure 1, and in particular the position of the front sliding member 21 assigned to the seat member 13.

  In FIG. 5 more particularly, and referring also to FIGS. 6 to 10, the rear elementary guide rails 26 and before 25 assigned to the seat element 13 are inclined with respect to the resting plane. the seat on the ground respectively at an angle A between 5 and 9 for a length of 310 mm and an angle B between 2 and 6 for a length of 320 mm. Furthermore, the front elemental spoke 25 is bent forwards by an angle C between 8 and 12 relative to the rest plane of the seat on the ground. The one 22, rear, of the organs of the pair of remote sliding members that comprises the seat member 13 is located at about 40 mm from the axis 15 of articulation of the seat elements 13 and backrest 14 Each other, while the other 21, before, is located about 310 mm behind the base edge 18 of the seat member 13. The sliding member 20 assigned to the back element 14 is in turn located in a median zone between the vertex 19 and hinge edges 17 of the back element 14.

  It will be noted more particularly in FIG. 3 that the seat elements 13 and the backrest 14 each comprise at least one inflection zone 27 and 28 for keeping the flexible support member 2 at a distance from the latter 13 and 14. The inflection 27 of the seat element 13 being in particular situated in the vicinity of its base edge 18.

  Returning to FIGS. 6 to 10, the lift and the movement of the supporting structure 1 on the chassis are obtained in particular by the combination between the articulated arrangement of the structure 1 carrying the flexible support member 2 and the sliding assembly comprising the three sliding members 20,21 and 22 forming the bearing points that the carrier structure 1 takes on the chassis.

  A slight thrust exerted by the user with his shoulders on the supple support member 2, associated with a movement of the pelvis forward, causes a sliding advance of the carrier structure 1 and its extension. Stopping such a thrust and movement allows a natural immobilization of the carrier structure 1 at a desired position. It will be noted the faculty offered of a continuous variation of the positions of the supporting structure 1, so that each user, according to his morphology and his mood, can find the position that suits him best, from the vertical station to the extreme position of folding of the carrier structure I (fig.6) to an extended station in extreme position of extension of the carrier structure 1 (fig.1 0).

  When the carrier structure 1 is in any extended position, the user, to get up, sketch a corresponding movement, relieving the back forward; without further action on its part, the carrier structure 1 slides along the chassis to its extreme retracted position. It will be noted that such a result is particularly obtained from a suitable combination between the respective positions of the sliding members 20, 21, 22 on the supporting structure 1, the length, the shape and the position of the guide rails. , 25,26 on the chassis, and the shape of the seat elements 13 and backrest 14 of the supporting structure 1. Such a combination stems in particular the ease of sliding of the carrier structure 1 on the frame in translation and in forward extension, S and the automaticity of the folding movement of the carrier structure 1 caused by the restoring torque exerted by the suspension in suspension on the frame of the carrier structure 1, during its sliding in the retracted position.

  It will also be noted that the position of the front sliding member 21 of the seat element 13 determines the opening in maximum extension of the carrier structure 1, because of its participation in means of abutment of this last 1 against the end of the elementary rail before 25, and the degree of tilting of the seat member 13 causing the tilting of the carrier structure 1 and the leverage effect necessary for the automation of the sliding towards the 1 of the carrier structure 1. The appropriate use of two elementary rails 25 and 26 will be noted again to form the guide rail 24 of the seat element 13, in offset and opposite positions relative to one another. at the other, one back 26 descending and the other before 25 upright and curved up.

NOMENCLATURE

1.- Carrier structure.

2.- Supporting organ.

  3.- Basic end of the support organ.

  4.- Summit end of the support organ.

  5.- Fixing organs of the support member.

  6.- Senior executive of the support organ.

  7.- Lower frame of the support organ.

  8.- Frame spring cables of the support member.

  9.- Frame slats of the support member.

10.- Lattes of the support organ.

11.- Lattes of the support organ.

  12.- Straps of the support organ. 13.- Seating element.

14.- Folder element.

15.- Axis of articulation.

  16.- Articulation edge of the seat element.

  17.- Articulation edge of the file element. 18.- Base edge of the seat element.

  19.- Top edge of the folder element.

  20.- Sliding member of the file element.

  21.- Sliding member before the seat element.

  22.- Rear sliding member of the seat element. 23.- Rail of the file element.

24.- Rail of the seat element.

  25.- Elementary front rail of the seat element: 26.- Rear elementary rail of the seat element.

  27.- Inflexion of the sitting element. 30 28.- Inflexion of the file element.

Claims (11)

claims   1. Relaxation seat comprising a seat element (13) and a backrest element (14) arranged in the extension of one another so as to delimit between them a dihedron of reception of the body of the the seat elements (13) and the backrest (14) being supported by a ground seat rest frame and being pivotally mounted relative to one another to allow the user to vary the seat. the angle of the dihedron, the frame comprising means for guiding in mobility of at least one of the seat elements (13) and backrest (14), and immobilization means for their retention in a respective orientation l relative to each other, characterized in that: *) the seat (13) and backrest (14) elements are abutted and articulated to each other at their corresponding edge (16, 17) to form together a carrier structure (1) of a flexible support member (2) of the body of the user, *) the flexible member of e support (2) is attached at its corresponding ends to the free base edge (18) of the seat member (13) and to the free edge (19) of the back member (14), free edges which are opposed to the articulation edges (16, 17) of the seat and backrest elements to one another, *) the movable guide means of the seat (13) and backrest elements ( 14) are constituted by rails (23, 24) fixed to the frame, which define guideways for sliding members (20, 21, 22) respectively assigned to the seat (13) and backrest elements ( 14), the seating element (13) being provided with a pair of sliding members (21,22) which circulate along respective and concurrent guiding paths delimited by the corresponding rail (24).   2. Relaxation seat according to claim 1 characterized in that the seat elements (13) and backrest (14) comprise at least one inflection (27,28) between their respective edge base (18) and vertex (19) to which is attached the flexible support member (2), and their hinge edge (16,17) to each other, so that the flexible support member (2) is kept remote seat elements (13) and backrest (14), including when the user is installed in the seat.   3. Relaxation seat according to claim 2 characterized in that said inflection (27,28) is located in the vicinity of the edge (18,19) for fixing the support member (2) of any one at least corresponding elements of seat (13) and backrest (14) of the carrier structure (1).   4.- relaxation seat according to any one of the preceding claims, characterized in that the rail (23) assigned to the back member (14) is fixed to the frame in an area corresponding to the central zone of the backrest member (13) between its respective vertex (19) and hinge (17) edges to the seat member (13), so that the guide area of the backrest member (13) ) is located between the support areas of the user on the flexible support member (2).   5.- relaxation seat according to claim 4 characterized in that the rail 20 (23) of the backrest member (14) is substantially straight and inclined relative to the rest plane of the chassis to the ground at an angle of l order between 45 and 55.   6. Relaxation seat according to any one of the preceding claims, characterized in that the guide rail (24) assigned to the seat member (13) is a curved single rail along which a pair of remote sliding members (21,22).   7. Relaxation seat according to any one of claims 1 to 5, characterized in that the guide rail (24) assigned to the seat element 30 (14) is composed of two elementary rails (25,26 ), one front (25) and the other rear (26) with respect to the seat, along which elementary rails (25,26) circulate sliding members (21,22) of the seat element ( 13) respectively assigned to them, the elementary rails (25,26) being substantially rectilinear and inclined in opposition to one another by an angle D of the order of between 5 and 15 with respect to the plane rest of the chassis on the ground.   8.- relaxation seat according to claim 7 characterized in that the rear elementary rail (26) is inclined relative to the rest plane of the chassis to the ground of an angle A of the order between 5 and 9, while the front elementary rail (25) is inclined with respect to the plane of repose of the chassis on the ground and in opposition to the inclination of the rear elementary rail 10 (26), of an angle B of the order between 2 and 6.   9. Relaxation seat according to any one of claims 7 and 8 characterized in that the front elementary rail (25) is flexed forwards by an angle C of the order of between 8 and 12, relative to at the rest plane of the chassis on the ground, to give the carrier structure (1) a rearward tilting effect concomitantly with its extension.   10. Relaxation chair according to any one of the preceding claims, characterized in that the flexible support member (2) is any one of a fabric, a ply of braided straps, a web of transverse slats (11) carried by lateral straps (12), and rigid elements (6, 7) shaped as articulated frames to each other, the interior spaces of which they delimit are respectively covered with elastically deformable members (8, 9). 11. Relaxation seat according to any one of the preceding claims, characterized in that it comprises accessory means for blocking the carrier structure (1) in any of its positions to prohibit a spontaneous modification of the angle of the dihedron 30 when the seat is unoccupied.   12.- relaxation seat according to any one of the preceding claims, characterized in that it comprises accessory means for assisting the sliding maneuver of the seat elements (13) and backrest (14) along the rails (23,24) assigned to them.