EP1667555A1

EP1667555A1 - Modulatable for a young child

Info

Publication number: EP1667555A1
Application number: EP04787344A
Authority: EP
Inventors: Sandrine Charvillat; Philippe Mignot
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-09-09
Filing date: 2004-09-09
Publication date: 2006-06-14
Also published as: WO2005025384A1; FR2859363B1; FR2859363A1

Abstract

The invention relates to a device for a young child capable of forming a chair and/or a bed and/or the like, comprising a frame (1) and a seat (4) attached to said frame (1). The invention is characterized in that the frame (1) comprises two parts (2, 2'), which are hinged in a manner that enables them to pivot about a transverse rod (3), and at least one part (2, 2') of the frame (1) defines a volume, which contains a bottom wall (8, 8'), an upper wall (7, 7'), lateral walls (2a, 2b; 2'a, 2'b) and transverse walls (10, 10') and inside of which any elements, which are items belonging to the young child, can be positioned or which contains means for stowing these items. The invention is also characterized in that the seat (4) consists of a flexible covering fastened to the frame (1) in such a manner that this seat (4) covers the upper wall (7, 7') of at least one part (2, 2') of the frame (1).

Description

MODULAR KIT FOR A CHILD AT AGE

The present invention relates to a device for a young child capable of forming a seat and / or a bed or the like comprising a frame and a seat secured to said frame. In the field of baby furniture, the seats commonly known as “cozy” are well known, consisting of a seat consisting of a molded shell furnished with padded elements and comprising in its central part a hoop in the general shape of a U, the ends of the branches are articulated around transverse axes extending from the side walls of the seat, said arch comprising means for gripping the "cozy". Note that such seats not comprising a rigid shell are commonly called Transat and used in homes and / or gardens unlike "cozy" which are mainly used for travel by car. Folding baby beds are also known which consist of a tubular frame which can be folded around a transverse axis, the transverse, bottom and lateral walls of the bed being produced by pieces of canvas stretched between the uprights, crosspieces and side members of the frame of the bed. All these furniture have the disadvantage of having a large size which, during a trip by car, for example, requires the parents of the baby to choose between one or the other of these furniture. To overcome this drawback, we have already imagined convertible baby furniture consisting of a chair capable of being transformed into a bed and vice versa. This is the case, for example, of French patent FR 2,331,306 describing a chair and a cot. The chair and bed combination for small children has a backrest, a seat and a footrest suitably linked together so that two adjacent elements can rotate relative to each other. Thus, a U-shaped support rod, the branches of which are separated from one the other by an intermediate link part, is articulated to the backrest and the footrest, and a locking rod is articulated to the support rod and to the backrest, so that when the intermediate part of the locking rod by making it take several locking positions along the back, the back, the seat and the footrest take various different positions, including a position where these elements are aligned with each other so as to define a bed, a another position where these elements are folded back on themselves for storage or transport, and several other intermediate positions where these elements are arranged according to variable angles in other and define various chair positions. Although this type of furniture reduces congestion, parents must nevertheless plan, when traveling with their child, one or more handy bags containing a changing table, care products such as talc, creams or the like, diapers, change of clothes, etc., so that this type of furniture is inconvenient and cumbersome, since it forces the parents to hold the furniture in one hand and in the other hand the bag (s) containing the baby's belongings. One of the aims of the invention is therefore to remedy these drawbacks by proposing a device for a young child capable of forming a seat and / or a bed and / or a changing table for children of simple, inexpensive design. and making it possible to limit the size of the effects of a baby during a trip or a displacement. To this end, and in accordance with the invention, there is provided a device for a young child capable of forming a seat and / or a bed for a child and / or the like comprising a frame and a seat secured to said frame remarkable in that that the frame has two parts articulated around a transverse axis, at least a part of the frame defining a volume which comprises a bottom wall, an upper wall, side walls and transverse walls and in which are able to be positioned any elements such as the effects of the young child or means for storing said effects, and in that the seat consists of a flexible envelope secured to the frame of such that said seat covers the upper wall of at least part of the frame. We understand that, unlike the devices of the prior art, the furniture according to the invention comprises storage means positioned in the volume defined by the frame of the furniture in order to store the baby's personal effects such as diapers panties, creams, talc, etc. Other advantages and characteristics will emerge more clearly from the description which follows of several alternative embodiments, given by way of nonlimiting examples of furniture for young children in accordance with the invention, with reference to the drawings in which: - Figure 1 is a perspective view of the child device according to the invention in the seat position, - Figure 2 is a longitudinal sectional view of the child device according to the invention shown in Figure 1, - Figure 3 is a top view of the seat of the child device according to the invention, - Figures 4A to 4E are side views of the different configurations of the child device according to the invention in the closed position, in the shape open position bed, and in the open position in the form of a seat, - Figure 5 is a perspective view of the child device according to the invention in the closed position worn over the shoulder, - Figure 6 is a view in per detail view of the means for securing the strap to the hoop of the device according to the invention, FIG. 7 is a perspective view of a first alternative embodiment of the device for children according to the invention, - Figure 8 is a perspective view of a second alternative embodiment of the child device according to the invention, - Figure 9 is an exploded perspective view of the second alternative embodiment of the child device according to invention shown in Figure 8, - Figure 10 is a longitudinal sectional view of the second alternative embodiment of the child device according to the invention shown in Figures 8 and 9, - Figure 11 is a perspective view of 'a third variant of the device for children according to the invention, - Figure 12 is an exploded perspective view of the third variant of the device for children according to the invention shown in Figure 11, - Figure 13 is a view in longitudinal section of the third variant of the device for a child according to the invention shown in FIGS. 11 and 12, - FIG. 14 is a top view of the seat of the third variant of execution of the child device according to the invention shown in Figures 11 to 13, - Figure 15 is an exploded perspective view of a last alternative embodiment of the child device according to the invention, - Figure 16 is a perspective view of a baby carrier obtained in a flexible material able to cooperate with the frame of the child device shown in Figure 15, - Figure 17 is a perspective view of the baby carrier cooperating with the child device next

1 invention, - Figure 18 is a schematic representation of the baby carrier of the device according to the invention carried by a user in the prone position, - Figure 19 is a schematic perspective view of the device for children according to the invention, in use backpack, - Figure 20 is a schematic perspective view of the child device according to the invention,. in use booster seat. In this nonlimiting example, a device for a young child will be described, that is to say for a child whose age is generally between 1 and 36 months, capable of forming a seat and / or a bed or similar ; however, it is obvious that the device according to the invention can be adapted to older children. Referring to Figures 1 and 2, the device for young children according to the invention consists of a frame 1 comprising two parts 2 and 2 'articulated around a transverse axis 3 and a seat 4 secured to the frame 1 as will be detailed later. Each part 2,2 'of the frame 1 consists of a pair of side walls 2a, 2b and respectively 2' a, 2'bs' extending vertically and parallel, the side walls 2a, 2b extending between the walls side 2'a, 2'b for example. These side walls 2a, 2b and 2'a, 2'b are obtained in wood and have a generally triangular shape, one of the respective vertices of which is articulated to the transverse axis 3 and the respective bases of which constitute the ends. distal of said side walls 2a, 2b and 2'a, 2'b, are connected by a cylindrical transverse connecting bar 5 and 5 'respectively extending near the upper ends of the side walls 2a, 2b_ and 2'a, 2 'b. These transverse connecting bars 5 and 5 'project outwards from the side walls 2a, 2b and 2'a, 2'b in order to allow, in addition to the joining of the two parts 2 and 2' of the frame 1, d 'tilt the seat 4 of the device as will be seen below. It is obvious that the side walls 2a, 2b and 2'a, 2'b can be obtained in any suitable material, such as rigid plastic for example, and have any shape such as a trapezoidal or rectangular shape without going out of the scope of the invention. In addition, it goes without saying that the side walls 2a, 2b and 2'a, 2'b may have a lower section, that is to say the section in contact with the bottom walls 8 and 8 'respectively, curved, so that only the portions on either side and near the transverse axis 3 are in contact with the ground, thus allowing, thanks to the rounded shape, to obtain a pendulum effect on the device in the bed or seat position. Incidentally, each part 2 and 2 'of the frame 1 comprises secondary transverse connecting bars 6 and 6' connecting the side walls 2a, 2b and respectively 2'a, 2'b in their middle part in order to stiffen each of said parts 2 and 2 'of the frame 1. Furthermore, each part 2 and 2' of the frame 1 of the device comprises an upper wall 7 and 7 'and a bottom wall 8 and 8' consisting respectively of a piece of fabric generally rectangular, the longitudinal edges of which are connected by strips 9 and respectively 9 'of fabric of length generally equal to the height of the side walls 2a, 2b and 2'a, 2'b. The upper walls 7,7 'connected to the bottom walls 8,8' by the fabric strips 9,9 'are threaded on the side walls 2a, 2b and respectively 2'a, 2'b so that the strips 9 and 9 'extend outside the side walls 2a, 2b and respectively 2'a, 2'b, the upper walls 7,7' and bottom 8,8 'being stretched from the upper and respectively lower edges of the side walls 2a, 2b and respectively 2'a, 2'b. Each bottom wall 8,8 'is extended by a generally rectangular piece of fabric 10 and 10' respectively. This piece of fabric 10.10 ′ which forms the distal transverse wall of each part 2.2 ′ of the frame 1 comprises at its free ends closing means constituted by a strip of fabric with loops 11.11 11 able to cooperate with a strip of hook-and-loop fabric of the Velcro type (registered trademark) secured to the upper walls 7 and 7 'of the frame 1. It goes without saying that the upper walls 7.7' and the bottom walls 8.8 ' may respectively consist of a generally rectangular piece obtained in any flexible material and the peripheral edges of which are secured by any suitable means to the upper and / or lower edges of the side walls 2a, 2b and 2'a, 2'b of the frame 1. In addition, it is obvious that the transverse wall 10, 10 ′ may consist of a generally rectangular piece obtained in any flexible material and coming from the upper wall 8.8 ′, the free end of the distal transverse wall 10, 10 ′ comprising any closing means capable of cooperating with complementary closing means secured to the bottom wall 8,8 'and / or to the top wall 7,7'. Furthermore, with reference to FIGS. 1 and 2, the device comprises a hoop 12 in the general shape of a U, the free ends of the branches of which are articulated to the transverse axis 3, the base of the hoop 12 extending parallel to said axis. transverse 3. The branches of the arch 12 advantageously consist of two wooden battens 13a, 13b extending parallel, one of the so-called proximal ends being articulated to the transverse axis 3 and whose ends called distal, opposite the ends proximal, are connected by a cylindrical wooden bar 14 forming the base of the arch 12. The branches 13a, 13b of the arch 12 have a length greater than the length of the side walls 2a, 2b and 2 'a, 2' b of the parts 2 and 2 ′ of the frame 1 so that, in the folded-back, that is to say closed, position as shown in FIG. 4A, the base 14 of the arch 12 protrudes from the transverse walls of the armature 1. The branches s 13a and 13b of the hoop 12 comprise means for fixing said arms 13a, 13b of the hoop 12 to each of the parts 2.2 ′ of the frame 1, thus making it possible to maintain said parts 2.2 ′ in the closed position , their upper wall 7,7 'facing each other as shown in FIG. 4A. These fixing means consist of recesses 15 formed along the longitudinal edges of the branches 13a, 13b of the arch 12, proximity of their distal ends, of section in general shape C and able to cooperate with the transverse connecting bars 5 and 5 'connecting the distal ends of the side walls 2a, 2b and 2'a, 2'b of the two parts 2,2 'of the frame 1. It is obvious that the fixing means may consist of a single recess 15 formed in one of the branches 13a or 13b of the arch 12, of section in the general shape of C and able to cooperate with the transverse connecting bar 5 or 5 'connecting the distal ends of the side walls 2a, 2b or 2'a, 2'b of one of the parts 2,2' of the frame 1 without however leaving the invention. It will be observed that the distal end of the other part 2,2 ′ of the frame 1, then comprises means for fixing said part with the first part 2,2 ′ of the frame and / or with the arch. 12. In addition, it goes without saying that the fixing means may consist of a generally C-shaped clip able to cooperate by elastic deformation with the transverse connecting bar 5.5 ′ connecting the distal ends of the side walls 2a, 2b and 2'a, 2'b of a part 2,2 'of the frame 1. With reference to FIGS. 2 and 3, the seat 4 consists of a piece of advantageously quilted fabric, generally rectangular, secured to the base 14 of the arch 12 and to one of the transverse connecting bars 5.5 'connecting the distal ends of the side walls 2a, 2b and 2'a, 2'b of a part 2.2' of the frame 1. The seat 4 comprises along its longitudinal edges beads 16 which come to bear on the upper edges of the side walls 2a, 2b and s ur the edges of the branches 13a, 13b of the arch 12 to form lateral supports in order to prevent the child from being injured on said upper edges of the side walls 2a, 2b and of the branches 13a, 13b and that the child fall on the sides. The transverse edges of the seat 4 respectively comprise fixing means 17 and complementary fixing means 18 in order to fix said seat 4 to the base 14 of the arch 12 and to one of the transverse connecting bars 5.5 'connecting the distal ends of the side walls 2a, 2b and 2'a, 2'b. In order to fix the seat 4 to the base 14 of the arch 12 and to one of the transverse connecting bars 5.5 ′, said seat 4 is positioned on the base 14 of the arch 12 and on one transverse connecting bars 5.5 'so that the base 14 and the connecting bar 5.5' extend at the ends of the beads 16 of the seat 4, then the transverse edges of the seat 4 are folded down under the base 14 and the connecting bar 5.5 ′ passing under the transverse axis 3 before being butted together by making the fixing means 17 cooperate with the complementary fixing means 18. It will thus be noted that the seat 4 can be quickly removed and then repositioned on the frame 1 of the device, thus facilitating its cleaning. Furthermore, with reference to FIGS. 1 and 2, the hoop 12 comprises means for blocking said hoop 12 at an angle α with one of the parts 2,2 ′ of the frame 1. These means for blocking the hoop 12 consist of arms 19a, 19b articulated to the arms 13a, 13b of the hoop 12, between said arms 13a, 13b, and provided along one of its longitudinal edges with lights 20. These lights 20 in the form of hook are regularly spaced and are able to cooperate with the ends of the connecting bar 5.5 'projecting outward from the side walls 2a, 2b or 2'a, 2'b of one 2 or 2' of parts 2,2 'of the frame 1. Incidentally, with reference to Figures 1 and 6, the device comprises a strap 21 whose free ends are integral with the distal ends of the arms 13a, 13b of the arch 12. In order to allow cleaning and adjusting the length of the strap 21 according to the morphology of the person using it isolating the device, said strap 21 is removably secured to the distal ends of the branches 13a, 13b and it comprises for this purpose along the longitudinal axis of said strap 21, near its ends free, oblong openings 22 able to cooperate with the free ends of the wooden cylindrical bar 14 which project from the branches 13a, 13b, said ends of the bar 14 being respectively terminated by balls 23. It goes without saying that the ends free of the strap 21 can be secured removably or not to the side walls 2a, 2b and / or 2'a, 2'b of the frame 1. The free ends of the strap 21 then comprise, for example, along from its longitudinal axis oblong slots 22 able to cooperate with at least two studs provided with a flange at their respective distal ends, each stud extending outwards from a side wall 2a, 2b and / or 2 'a, 2'b of the frame 1. We will now explain the operation of the device according to the invention with reference to Figures 1, 2, 4A to 4E and 5. With reference to Figures 4A and 5, the device is initially in the closed position e, that is to say in position where the upper walls 7, 7 'of the parts 2 and 2' of the frame 1 are opposite one another. The transverse connecting bars 5 and 5 'connecting the distal ends of the side walls 2a, 2b and 2'a, 2'b of the two parts 2,2' of the frame 1 are then embedded in the recesses 15 formed along the longitudinal edges of the arms 13a, 13b of the arch 12, near their distal ends, of section in general shape C. It will be observed that, in this closed position, the device according to the invention can be carried over the shoulder like a bag , with reference to FIG. 5, thus leaving the hands of a user free. Furthermore, the latter can access, by opening the transverse wall or walls 10, 10 'of each of the parts 2.2' of the frame 1, to the volumes defined by the bottom wall 8.8 ', the upper wall 7 , 7 ', the side walls 2a, 2b; 2 'a, 2'b and the transverse wall 10,10' of each part 2,2 'of the frame 1 and in which are able to be positioned the effects of an infant such as talc, creams or the like, diapers, change of clothes, etc., or means for storing said effects. With reference to FIG. 4B, the device according to the invention is opened by releasing the transverse connecting bar 5 from the part 2 of the frame 1 of the recess 15 formed along one of the longitudinal edges of the branches 13a , 13b of the arch 12. The part 2 ′ and the arch 12 still secured to said part 2 ′ then pivot around the transverse axis 3 anticlockwise and part 2 of the armature 1 pivots clockwise, as indicated by arrows a and b, until parts 2 and 2 'of armature 1 extend generally parallel. Thus unfolded, the seat 4 extends generally horizontally between the base 14 of the arch 12 and the transverse connecting bar 5 of the part 2 of the frame 1, above the upper walls 7, 7 'of the parts 2 , 2 ', to form a bed. In order to transform the device into a child seat, with reference to FIG. 4C, the transverse connecting bar 5 ′ of part 2 ′ of the frame 1 is released from the recess 15 formed along one of the edges longitudinal branches 13a, 13b of the arch 12 by exerting a traction, then the arch 12 is pivoted around the transverse axis 3 in the direction of clockwise as indicated by the arrow c. The arms 19a, 19b extending initially parallel to the branches 13a, 13b of the arch 12 are pivoted around their axes of articulation, as indicated by arrow d, then the arch 12 is released so that the free ends of the connecting bar 5 ′ of the part 2 ′ of the frame 1 which protrude from the side walls 2 ′ a, 2 ′ b are housed in the distal slots 20 of the arms 19 a, 19 b. The hoop 12 then forms an angle α with the part 2 of the frame 1 and the seat 4 extends between the base 14 of the hoop 12 and the connecting bar transverse 5 of part 2 having a generally parabolic shape in which a child can be seated. With reference to FIGS. 4D and 4E, the user can vary the angle, that is to say the inclination of the arch 12, by positioning the free ends of the connecting bar 5 ′ of part 2 'of the frame 1 which protrude from the side walls 2'a, 2'b in the different slots 20 of the arms 19a, 19b. According to a first alternative embodiment of the device according to the invention, said device consists, in the same way as above, of a frame 1 comprising two parts 2 and 2 'articulated around a transverse axis 3 and a seat 4 secured to the frame 1 as will be detailed below. Each part 2,2 'of the frame 1 consists of a pair of side walls 2a, 2b and respectively 2'a, 2'bs' extending vertically and parallel, the side walls 2a, 2b extending between the walls side 2'a, 2'b for example. These side walls 2a, 2b and 2'a, 2'b are obtained in wood and have a generally triangular shape whose respective vertices are articulated to the transverse axis 3 and whose respective bases, which constitute the distal ends of said walls side 2a, 2b -and 2'a, 2'b, are connected by a cylindrical transverse connecting bar 5 and 5 'respectively extending close to the upper ends of the side walls 2a, 2b and 2'a, 2'b . These transverse connecting bars 5 and 5 'project outwards from the side walls 2a, 2b and 2'a, 2'b. The ends of the seat 4 are respectively fixed to the transverse connecting bars 5 and 5 'connecting the distal ends of the side walls 2a, 2b and 2'a, 2'b. In order to allow the inclination of part of the seat 4 to provide a seat for a child, the device comprises two feet 24a, 24b articulated around transverse axes in the middle part of the side walls 2a and 2b respectively of the part 2 of the frame 1, said feet 24a, 24b extending along the outer faces of the side walls 2a, 2b parallel to the latter. These feet 24a, 24b are able to pivot from a first retracted position where they extend parallel to the bottom wall 8 of the part 2 of the frame 1 to a second active position where they extend generally perpendicular to said bottom 8 projecting from the latter to bear on a support and tilt the part 2 at an angle α relative to the part 2 'of the frame 1. The feet 24a, 24b are kept locked in their second active position by any suitable means such as a nut fitted with a butterfly head or the like. According to a second alternative embodiment of the device according to the invention, with reference to Figures 8 to 10, said device consists in the same way as above of a frame 1 comprising two parts 2 and 2 'articulated around an axis transverse 3 and a seat 4. The first part 2 of the frame 1 consists of a tube 25 folded to form in the horizontal plane a U whose base 26 is folded in the vertical plane to form an inverted U. Thus, part 2 of the frame includes a tubular base 26, two vertical branches 27a and 27b extending under the tubular base 26 from the ends of said base 26 and two horizontal branches 28a and 28b from the vertical branches 27a and respectively 27b and extending generally perpendicularly to said vertical branches 27a and 27b and to the base 26. In the same way, the second part 2 'of the frame 1 consists of a tube 25' folded to form in the horizontal plane a U whose base 26 'is folded in the vertical plane to form an inverted U. Thus, the part 2 'of the frame comprises a tubular base 26', two vertical branches 27'a and 27'bs' extending under the tubular base 26 'from the ends of said base 26' and two horizontal branches 28'a and 28'b from the vertical branches 27'a and 27'b respectively and extending generally perpendicular to said vertical branches 27'a and 27'b and at the base 26. The free ends of the horizontal branches 28'a and 28'b are folded upwards to form two vertical central branches 29'a and 29'b respectively, the upper ends of which are connected by a central horizontal tube 30 'extending parallel to the base 26' of part 2 'of the frame 1. Furthermore, the free ends of the horizontal branches 28a, 28b of part 2 of the frame 1 are folded towards the high to form two vertical central branches 29a and respectively 29b which are articulated around the transverse axis 3 to the two vertical central branches 29'a and respectively 29'b of the part 2 'of the frame 1. Furthermore, the device comprises compartments 31, 31 ′, generally parallelepiped, obtained in fabric or in any other flexible material capable of being threaded onto the parts 2 and 2 ’respectively of the frame 1 to form upper walls 7, 7 ′, walls of f ond 8.8 ', side walls 2a, 2b and 2'a, 2'b and transverse walls 10.10' from the bottom walls 8.8 '. The transverse walls 10, 10 ′ comprise, along its transverse edge, on its internal face, closing means 32, 32 ′ capable of cooperating with complementary closing means 33, 33 ′ secured to the upper face of the upper walls 7 and respectively 7 '. These closing means 32, 32 ′ and complementary closing 33.33 ′ consist, for example, of the male and female elements of press studs, respectively. Furthermore, the device comprises, in the same manner as above, a hoop 12 in the general shape of U obtained in a metal tube bent to form two branches 13a., 13b whose free ends are articulated to the transverse axis 3 and a base 14 extending parallel to said axis 3. The branches 13a, 13b of the arch 12 have a length greater than the length of the horizontal branches 28a, 28b and 28 'a, 28'b of the parts 2 and 2' of the armature 1 so that in position folded back, that is to say closed, the base 14 of the arch 12 protrudes from the distal transverse walls of the frame 1. The branches 13a and 13b of the arch 12 comprise means for fixing said branches 13a, 13b of the arch 12 to each of the parts 2.2 ′ of the frame 1 thus making it possible to maintain said parts 2.2 ′ in the closed position, their upper wall 7.7 ′ facing each other. These fixing means consist of clips 34 generally C-shaped, extending perpendicularly on either side of the arms 13a, 13b of the arch 12, and able to cooperate by elastic deformation with the cylindrical tubes of the bases 26 and 26 ′ of parts 2 and 2 ′ of the frame 1. In order to avoid any jamming of the fingers of the child and / or of the user during the handling of the device, the latter comprises a hinge housing 35, made of plastic, for example, comprising a generally rectangular horizontal base 36 and semi-circular vertical walls 37 between which the branches 13a, 13b of the arch 12 extend, the horizontal branches 28a, 28b and the central verticals 29a, 29b of part 2 and the horizontal branches 28'a, 28'b and central verticals 29'a, 29'b of part 2 '. Furthermore, the seat 4 consists of a piece of fabric, advantageously quilted, generally rectangular, secured to the base 14 of the arch 12 and to one of the cylindrical tubes forming the base 26 or 26 'of a part 2 or 2' of the frame 1. The seat 4 preferably comprises along its longitudinal edges beads 16 which form lateral supports in order to prevent the child from falling on the sides. Finally, in order to vary the inclination of the arch 12 with respect to 1 part 2 of the frame 1, that is to say in order to vary the angle α, the device comprises means for blocking said arch 12 integral with the free ends of the arms 13a, 13b of the arch 12 and able to cooperate with the transverse axis 3 of the device. These blocking means consist for example of a counter piece fixed clamping 38 and a clamping piece 39 controlled by a lever 40. According to a third alternative embodiment of the device according to the invention with reference to Figures 11 to 13, the latter is constituted in the same way as above, of a frame 1 comprising two parts 2 and 2 'articulated around a transverse axis 3 and a seat 4 secured to the frame 1. Each part 2,2' consists of a molded half-shell, made of polyurethane for example, comprising a bottom wall 8,8 ', side walls 2a, 2b and 2'a, 2'b and distal transverse walls 10,10'. The half-shells 2 and 2 'are articulated around a transverse axis 3 so that said half-shells 2 and 2' are able to pivot from a closed position where the upper edges of the side walls 2a, 2b_ and 2 ' a, 2'b of the half-shells 2,2 'extend opposite one another, the said half-shells 2,2' being kept in the closed position by closing means not shown in the figures, up to an open position where said half-shells 2,2 ′ extend generally parallel and vice versa. Furthermore, each half-shell 2.2 ′ comprises two feet 41a, 41b and respectively 41 ′ a, 41 ′ h articulated around transverse axes in the middle part of the side walls 2 a, 2 b and respectively 2 ′ a, 2 ′ b, said feet 41a, 41b and 41 'a, 41'bs' extending along the external faces of the side walls 2a, 2b and 2'a, 2'b parallel to the latter in recesses 42 and 42' respectively formed on the outer faces of said side walls 2a, 2b and 2'a, 2'b of the half-shells 2,2 '. These feet 41a, 41b and 41'a, 41'b are able to pivot from a first retracted position where they extend parallel to the bottom wall 8.8 'of the half-shells 2.2' of the frame 1 up to a second active position where they extend generally perpendicular to said bottom 8.8 'by projecting under the latter to bear on a support and tilt the half-shell 2 and / or 2' at an angle α with respect to horizontally H. The feet 41a, 41b and 41 'a, 41'b can be either kept locked in their second active position by any suitable means such as a nut provided with a butterfly head or the like, or brought back into their retracted position by helical springs 43,43 ′ secured to the articulation axes of said feet 41a, 41b and 41 ′ a, 41 ′ b with respect to the side walls 2a, 2b and 2 ′ a, 2 ′ b of the half-shells 2,2 ′. With reference to FIGS. 12 and 14, the seat 4 consists of a piece of fabric, advantageously quilted, generally rectangular, comprising along its longitudinal edges beads 16 which come to bear on the upper edges of the side walls 2a, 2b and 2'a , 2'b to form lateral supports in order to prevent the child from being injured on said upper edges of the side walls 2a, 2b and 2'a, 2'b and that the child does not fall on the sides. The longitudinal edges of the seat 4 also comprises fixing means 44 able to cooperate with complementary fixing means 45 integral with the internal faces of the side walls 2a, 2b and 2 'a, 2'b, said means of additional fixing 45 being positioned slightly behind the upper edges of the side walls 2a, 2b_ and 2'a, 2'b. Thus, when the seat 4 is secured to the side walls 2a, 2b and 2'a, 2'b, it closes the half-shells 2 and 2 '. Furthermore, the seat 4 is extended by generally rectangular pieces of fabric 46 and 46 'forming flaps capable of closing off openings 47 and 47' formed in the bottom walls 8 and 8 'of the half-shells 2 and 2' . The free ends of these flaps 46,46 'preferably comprise fixing means 48,48' able to cooperate with complementary fixing means 49,49 'positioned at the edge of the openings 47,47' on the external face of the walls of bottom 8 and 8 '. The fixing means 44,48,48 'and complementary fixing 45,49,49' consist, for example, in the male and respectively female elements of snaps. Advantageously, the seat 4 includes on its underside, that is to say its face opposite the half-shells^• 2.2 ', storage pockets 50 accessible through the openings 47, 47' after the flaps 46 and 46 'have been opened. Incidentally, the device comprises grip handles 51.51 ′ secured to the distal transverse walls 10.10 ′ of the half-shells 2.2 ′ and a strap 21 whose free ends are secured, preferably removably, to the walls lateral 2a, 2b and 2'a, 2'b of said half-shells 2,2 '. In order to allow the use of the device as a child seat in a vehicle, the device advantageously includes lights 200 and 200 'formed in the half-shells 2 and 2' respectively of the device to allow the passage of a seat belt of so as to fix the device on the vehicle seat or bench. In addition, the device comprises blocking means, shown in dotted lines in FIG. 13, of the half-shell 2 relative to the half-shell 2 'in order to prevent the half-shell 2' from coming to close. on the half-shell 2, during brutal braking for example, risking injuring the child installed in the device. These locking means consist, for example, of a hook 201 articulated around an axis extending parallel to the axis 3 of articulation of the two half-shells 2, 2 'and able to cooperate with a protruding lug 202 of the side wall 2'a of the half-shell 2 ', the hook 201 comprising a clamp 203 articulated at its free end and provided with fixing means cooperating with complementary fixing means integral with the rod of the hook 201 in order to blocking the hook 201 on the post 202. According to a final variant of the device according to the invention, with reference to FIGS. 15 to 18, the device is made up, in the same way as before, of a frame 1 comprising two parts 2 and 2 'articulated around a transverse axis 3 and a seat 4. The first part 2 of the frame 1 is consisting of a tube 57 folded to form in an inclined plane a U whose base 58 extends generally horizontally and whose ends of the branches 59a, 59b are folded in the vertical plane to form a lying V. Thus, part 2 of the frame comprises a horizontal tubular base 58, two inclined branches 59a, 59b from top to bottom from the horizontal tubular base 58 to the second part 2 'of the frame and two horizontal branches 60a, 60b from the inclined branches 59a and 59b respectively extending generally horizontally. Part 2 of the frame also comprises, in order to improve its rigidity, a transverse secondary bar 61 connected in the middle part of the horizontal branches 60a, 60b of part 2 of frame 1. It will be observed that the second part 2 'is articulated to the first part 2 around the transverse axis 3 passing through the tip of the V connecting the horizontal branches 60a, 60b to the inclined branches 59a, 59b of the frame 2. Furthermore, the second part 2' of the armature of the device consists of a tube 57 'bent to form in a plane inclined up and down from the outside towards the first part 2 of the armature, a U whose base 58' extends generally horizontally and whose free ends of the branches 59'a, 59'b are articulated around the transverse axis 3. The second part 2 'comprises, moreover, two horizontal support tubes 60' a, 60 'b of which a first end is resiliently hinged at the end lower of the inclined branches 59'a, 59'b, said horizontal support tubes 60 'a, 60' bs 'extending respectively in vertical planes orthogonal to the transverse axis 3 and in which the inclined branches 59' extend a, 59'b of part 2 'of the frame 1. The distal ends of the horizontal support tubes 60' a, 60 'b, that is to say the ends opposite to the transverse axis 3, are folded in a vertical plane to form telescopic vertical branches 62 'a and 62' b with free ends upper are secured to the intersection between the horizontal base 58 'and the inclined branches 59'a, 59'b of the part 2' of the frame in order to vary the height of the horizontal base 58 '. The seat 4 consists of a piece of advantageously padded fabric, generally rectangular, secured to the cylindrical tubes forming the bases 58 and 58 'of the parts 2 and 2' of the frame 1. In addition, in the same manner as above, the 'seat 4 advantageously comprises along its longitudinal edges beads 16 which form lateral supports to prevent the child from falling on the sides. It goes without saying that the beads 16 may be replaced by any equivalent means such as side walls made of fabric, for example, without departing from the scope of the invention. Furthermore, the device comprises, in the same way as previously, a compartment 31 generally parallelepipedal obtained in fabric or in any other flexible material, capable of being threaded onto part 2 of the frame 1 to form an upper wall 7, a bottom wall 8, side walls 2a, 2b and a transverse wall coming from the bottom wall 8. The side wall 10 comprises along its transverse edge on its inner face closing means 32 able to cooperate with means of complementary closure 33 integral with the upper face of the upper wall 7. These closure 32 and complementary closure means 33 consist, for example, in male and female elements of snaps respectively. Furthermore, with reference to Figures 16 to 18, the device comprises a baby carrier 63 consisting of a generally parallelepiped bag obtained in fabric or in any other flexible material, open at one end and comprising at its opposite end two holes 64 for the passage of a baby's legs, said baby carrier 63 comprising two pairs of straps 65, a first pair of so-called upper straps fastened close to the opening of the baby carrier 63 and a second pair of so-called lower straps 66 secured close to the holes 64 for the passage of the baby's legs. The baby carrier 63 has dimensions slightly smaller than the dimensions of the second part 2 'of the frame 1 in order to allow its introduction between the inclined branches 59'a, 59'b and the horizontal support tubes 60' a, 60 ' b, the upper straps 65 being passed behind the telescopic vertical branches 61 'a, 61' b of the frame 2 'and the lower straps 66 being passed behind the horizontal support tubes 60' a, 60 'b before being closed respectively at the level of the shoulders and the waist of a user, thus making it possible to carry on the belly, in addition to the baby, all the effects of the baby or of the user positioned in the compartment 31 which is accessible by its upper end. It goes without saying that the device can be positioned on the back of a user without departing from the scope of the invention. It will be noted that the horizontal base 58 'of part 2' of the frame advantageously comprises means for fixing the tube of the tubular base 58 of part 2 on the tubular base 58 'of part 2' of the frame so to maintain the device in the closed position, said fixing means consisting, for example, of metal hooks 67 mounted free in rotation around the tubular base 58 'of the part 2' and able to cooperate with the tubular base 58 of the part 2. It goes without saying that the device according to the invention, with reference to Figures 1 and 3, will advantageously include a seat belt 52 whose ends are respectively provided with closure means such as a hook clip 53 and means complementary closure such as a loop 54, said free ends of the belt projecting through two slots 55 formed in the seat 4 along its longitudinal edges in order to attach the child to the device e Don't prevent it from falling. So the seat belt 52 2005/025384 - 22 -

is threaded through a crotch loop 56 secured to the seat 4 passing through the projections 55, said belt 52 extending behind the branches 13a, 13b of the arch 12. In order to prevent the child folds and tilts to the side, the seat 4 is advantageously provided with several lights 55 distributed along the longitudinal edges of the seat 4 in order to adapt the height of the belt 52 according to the morphology of the child which takes place on the seat 4. According to another characteristic of the invention, with reference to Figures 19 and 20, the device according to the invention comprises a modular strap 68, which strap is provided with four fastening assemblies 69.70 , 71.72 of said strap 68 on the parts 2.2 'of the frame 1. These securing assemblies 69,70,71,72 are constituted by the interlocking of male and female elements, of the snap closure type , a male or female part of each set being secured to the strap and the corresponding part being subject to the frame 1 of the device. According to an essential point of the invention, the elements fixed respectively on the strap or on the frame are alternately male and female. Indeed, these advantageously allow the open ends of the strap 68 to be joined together, by fitting the male or female element of the securing assembly 71 into the male or female complementary element of the securing assembly 72 The modular strap is a strip in the general shape of an inverted U, provided at one of its free ends with the female part 71 'of the securing assembly 71 and at its other free end with the male part 72' of the joining assembly 72. On either side of the curved zone of the U are fixed the male element of the joining assembly 69 and the female element of the joining assembly 70. It goes without saying that we can reverse the alternation of the male and female parts present on the strap without departing from the scope of the invention. The presence of these four joining systems and their arrangement as described advantageously makes it possible to obtain four anchoring points for the modular strap 68 on the device according to the invention and thus provides two handles allowing transport in a backpack of the device according to the invention. Of course, the modular strap can be made of a quilted fabric and the cutting of this strip can be advantageously ergonomic. In addition, it is clearly understood that this modular strap 68 is adaptable to all of the variants of the device for children according to the invention as described above. Advantageously, this modular strap allows the device to be carried over the shoulder. To this end, the device will be kept in the closed position, as shown in FIGS. 4A, 5 or 19. Starting from the position shown in FIG. 19, the four fastening assemblies will be separated and the female part will be fixed. 71 'of the assembly 71 on the male part 72' of the assembly 70 and the male part of the assembly 72 on the female part of the assembly 69 and the male parts of the assembly may be joined together assembly 69 and females of assembly 70. In this way, the modular strap 68 is transformed into a strap and the device according to the invention is transported under the same conditions as those described in the case of FIG. 5. With reference to the Figure 20, we will now describe the use of the device according to the invention in booster seat, by way of example in the case of the variant described in Figures 1 to 7 and provided with the modular strap 68 as described above. The device according to the invention is placed on a chair 73 by installing part 2 on the seat of said chair. Part 2 'is in abutment against the back of the chair 73. In order to obtain a seat part 4 of the device which is horizontal when a child is seated there, it is necessary to disengage the locking means 19a, 19b of hoop 12 of part 2 '. Thus, it can pivot freely towards part 2 and its distal end can exceed the arch 12. In this way, the transverse bar 5 ′ which connects the side walls 2 ′ a, 2 ′ b tightens the fabric of the seat 4, making it possible to obtain a horizontal portion parallel to the seat of the chair on which the device is placed. In order to secure the device in use as a booster seat on a chair 73 on which it is placed, advantageously use the modular strap 68 which provides retention at the back and the seat of the chair. To this end, the fastening assemblies 71 and 72 will be separated from their respective attachment points and the female part 71 ′ of the assembly 71 will be joined together with the male part 72 ′ of the assembly 72 (and vice versa if the alternation of the male and female elements is offset) under the seat of the chair 73 after having passed in front of the rear legs of said chair and having passed the modular strap 68 over the backrest, as shown in FIG. 20. Of course, the assemblies 69, 70, 71, 72 of attachment may include means for adjusting the length in order to make the strap 68 adaptable to any conformation of the chair or person's morphology. In addition, there may be an additional securing assembly playing the function of lap strap, as is commonly practiced at the backpack handles, without departing from the scope of the invention. In addition, it is clear that the other variants of the device according to the invention can without difficulty for those skilled in the art be adapted to use in a booster seat and that the strap 21, as described above, also makes it possible to secure on a chair the device according to the invention in use booster seat. It is obvious that the device according to the invention can advantageously be secured to a frame such as a folding frame provided with wheels in order to provide a stroller, a high chair convertible into a deckchair or the like. To this end, parts 2 and 2 'of the frame of the device according to the invention may include, for example, clip means capable of cooperating with the tubes forming the frame. In addition and of course, the device according to the invention may advantageously be provided with a waterproof cover covering the seat 4 and matching the upper edges of the parts 2,2 ′ of the frame 1, with a passage for the loop d 'crotch 56. The device according to the invention may also include a generally flat piece, for example of rectangular shape, articulated at the top of the arch 12 and overhanging the seat 4, intended to serve as a sun visor or umbrella. Finally, it goes without saying that the device according to the invention can be obtained in any materials and in any forms and that the examples which have just been given are only particular illustrations in no way limiting as regards the fields of application of the invention.

Claims

1 - Device for a young child capable of forming a seat and / or a bed and / or the like comprising a frame (1) and a seat (4) integral with said frame (1) characterized in that the frame (1 ) has two parts (2,2 ') articulated around a transverse axis (3), at least one part (2,2') of the frame (1) defining a volume which comprises a bottom wall (8, 8 '), an upper wall (7,7'), side walls (2a, 2b; 2 'a, 2' b) and transverse walls (10,10 ') and in which elements are able to be positioned any such as the effects of the young child or means for storing said effects, and in that the seat (4) consists of a flexible envelope secured to the frame (1) so that said seat ( 4) covers the upper wall (7,7 ') of at least one part (2,2') of the frame (1). 2 - Device according to the preceding claim characterized in that it comprises gripping means integral with at least one of the parts (2,2 ') of the frame (1). 3 - Device according to claim 2 characterized in that it comprises a strap whose free ends are integral with the side walls (2a, 2b; 2 'a, 2' b) of one of the parts (2,2 ') of the frame (1). 4 - Device according to claim 3 characterized in that the strap (21) is removably secured to one of the parts (2,2 ') of the frame (1). 5 - Device according to claims 3 and 4 characterized in that the free ends of the strap (21) comprise along its longitudinal axis of the oblong slots (22) adapted to cooperate with at least two studs provided with a flange at their respective distal ends, each stud extending outward from a side wall (2a, 2b; 2 'a, 2' b) of the frame (1). 6 - Device according to any one of claims 1 to 5 characterized in that it comprises means for hooking the distal transverse wall (10) of a first part (2) of the frame (1) with the distal transverse wall (10 ') of the second part (2') of the frame (1 ) when the two parts (2,2 ') of the frame (1) are folded back so that the upper walls (8,8') of each part (2,2 ') of the frame (1) are one facing the other. 7 - Device according to any one of the preceding claims, characterized in that the distal transverse walls (10, 10 ') of the parts of the frame (1) are open to allow access to the volume defined by each of the parts (2 , 2 ') of the frame (1) or to the storage means positioned in said volume defined by each of the parts (2,2') of the frame (1). 8 - Device according to any one of the preceding claims, characterized in that the two parts (2,2 ') of the frame (1) are articulated around a transverse axis (3) so that said parts (2 , 2 ') can extend from a first so-called open position where said parts (2,2') extend generally parallel to a second so-called closed position where the upper walls (8,8 ') of each part ( 2.2 ′) of the armature are facing each other. 9 - Device according to any one of claims 1 to 8 characterized in that the transverse axis (3) around which are articulated the two parts (2,2 ') of the frame (1) comprises locking means d 'one part (2) compared to the other (2'). 10 - Device according to any one of the preceding claims, characterized in that each part (2,2 ') of the frame (1) consists of a pair of side walls (2a, 2b; 2' a, 2 ' b) extending parallel and of generally triangular shapes, one of the respective vertices of which is articulated to the transverse axis (3) and the respective bases of which are connected by a transverse connecting bar (5,5 '). 11 - Device according to claim 10 characterized in that the upper walls (8,8 ') and the bottom walls consist respectively of a generally rectangular piece obtained in a flexible material and whose peripheral edges are integral with the upper edges and / or lower side walls (2a, 2b; 2 'a, 2' b) of the frame (1). 12 - Device according to claim 11 characterized in that the distal transverse wall (10,10 ') consists of a generally rectangular piece obtained in a flexible material from the upper wall (8,8') and / or the wall of background (7.7 '). 13 - Device according to claim 12 characterized in that the free end of the distal transverse wall (10,10 ') comprises closing means capable of cooperating with complementary closing means integral with the bottom wall (7,7 ') and / or the upper wall. 14 - Device according to claim 12 characterized in that the free end of the distal transverse wall (10,10 ') comprises closing means capable of cooperating with the connecting bar (5) connecting the free ends of the side walls ( 2a, 2b; 2 'a, 2' b) of a part (2,2 ') of the frame (1). 15 - Device according to any one of claims 10 to 14 characterized in that it comprises a hoop (12) in the general shape of U whose free ends of the branches (13a, 13b) are articulated to the transverse axis, the base (14) of the arch (12) extending parallel to said transverse axis (13). 16 - Device according to claim 15 characterized in that the branches (13a, 13b) of the hoop (12) have a length greater than the length of the side walls of the parts (2,2 ') of the frame (1) so that, in the folded position, that is to say closed, the base (14) of the arch (12) protrudes from the distal transverse walls (10,10 ') of 1 frame (1). 17 - Device according to any one of claims 15 or 16 characterized in that at least one of the branches (13a, 13b) of the arch (12) comprises means for fixing said branch (13a, 13b) of the 'hoop (12) to at least one of the parts (2,2') of the frame (1). 18 - Device according to claim 17 characterized in that the fixing means consist of a clip (34) generally C-shaped able to cooperate by elastic deformation to the transverse connecting bar (5.5 ') connecting the distal ends of the side walls (2a, 2b; 2 'a, 2' b) of a part (2,2 ') of the frame (1). 19 - Device according to claim 17 characterized in that the fixing means consist of at least one recess practiced in at least one of branches (13a, 13b) of the hoop (12), of section in general shape C and able to cooperate with the transverse connecting bar (5.5 ') connecting the distal ends of the side walls (2a, 2b; 2' a, 2 'b) of at least one part (2,2') of the frame (1). 20 - Device according to any one of claims 14 to 19 characterized in that the seat (4) consists of a generally rectangular piece obtained in a flexible material whose transverse edges are respectively secured to the base (14) of the arch (12) and to one of the transverse connecting bars (5.5 ') connecting the distal ends of the side walls (2a, 2b; 2' a, 2 'b) of a part (2,2') of the frame (1). 21 - Device according to any one of claims 14 to 20 characterized in that the arch (12) comprises means for blocking said arch (12) at an angle α with one of the parts (2,2 ') of the frame (1). 22 - Device according to claim 21 characterized in that the hoop locking means (12) consist of arms (19a, 19b) articulated to the branches (13a, 13b) of the hoop (12) and provided with regularly spaced slots (20) capable of cooperating with the ends of the connecting bar (5.5 ′) projecting towards the outside of the side walls (2a, 2b; 2 ′ a, 2 ′ b) of one of the parts (2,2 ') of the frame (1). 23 - Device according to any one of claims 10 to 22 characterized in that the side walls (2a, 2b; 2 'a, 2' b) of the two parts (2,2 ') of the frame (1) and / or the arch (12) are obtained in wood. 24 - Device according to any one of claims 1 to 10 characterized in that on the one hand, the first part (2) of the frame comprises a tubular base (26), two vertical branches (27a) and (27b) extending under the tubular base (26) from the ends of said base (26) and two horizontal branches (28a, 28b) coming from the vertical branches (27a) and respectively (27b) and extending generally perpendicular to said vertical branches ( 27a) and (27b) and at the base (26) and on the other hand the part (2 ') of the frame (1) comprises a tubular base (26'), two vertical branches (27a) and (27 ' b) extending under the tubular base (26 ') from the ends of said base (26') and two horizontal branches (28 'a) and (28'b) from the vertical branches (27'a) and respectively ( 27'b) and extending generally perpendicular to said vertical branches (27'a) and (27'b) and at the base (26), the free ends of the horizontal branches ales (28a, 28b) of the part (2) and the free ends of the horizontal branches (28 'a, 28'b) of the part (2') are articulated around a transverse axis (3) 25 - Next device claim 24 characterized in that it comprises compartments (31,31 ') generally parallelepipedic obtained in fabric and able to be threaded on the parts (2) respectively (2') of the frame (1) to form upper walls (7.7 '), bottom walls (8.8'), side walls (2a, 2b) and (2'a, 2'b) and walls transverse (10,10 ') from the bottom walls (8,8'). 26 - Device according to claim 25 characterized in that each transverse wall (10,10 ') comprises along its transverse edge, on its inner face, closing means (32,32') capable of cooperating with means of additional closure (33.33 ') integral with the upper face of the upper walls (8) and respectively (8'). 27 - Device according to any one of claims 24 to 26 characterized in that it comprises a hoop (12) in the general shape of U obtained in a metal tube bent to form two branches (13a, 13b) whose free ends are articulated to the transverse axis (3) and a base (14) extending parallel to said axis (3). 28 - Device according to claim 27 characterized in that the branches (13a, 13b) of the hoop (12) comprise means for fixing said branches (13a, 13b) of the hoop (12) to each of the parts (2, 2 ') of the frame (1) thus allowing said parts (2,2') to be kept in the closed position, their upper wall (7,7 ') facing each other. 29 - Device according to claim 28 characterized in that said fixing means consist of clips (34) generally in the form of C, extending perpendicularly on either side of the branches (13a, 13b) of the arch ( 12), and able to cooperate by elastic deformation with the cylindrical tubes of the bases (26,26 ') of the parts (2,2') of the frame (1). 30 - Device according to any one of claims 24 to 29 characterized in that it comprises a hinge housing (25), in plastic material, comprising a horizontal base (36) generally rectangular and vertical walls (37) semi-cylindrical between which extend the branches (13a, 13b) of the arch (12), the horizontal branches (28a, 28b) of the part (2) and the horizontal branches (28 'a, 28'b) of the part ( 2 ') of the frame (1). 31 - Device according to any one of claims 24 to 30 characterized in that the seat (4) consists of a generally rectangular piece of fabric secured to the base (14) of the arch (12) and to one of the cylindrical tubes forming the base (26,26 ') of a part (2) or (2') of the frame (1). 32 - Device according to claim 31 characterized in that the seat (4) comprises along its longitudinal edges of the beads (16) which form lateral supports to prevent the child from falling on the sides. 33 - Device according to any one of claims 27 to 32 characterized in that it comprises means for blocking the arch (12) consisting of a fixed counter-clamping piece (38) and a piece of clamping (39) controlled by a lever (40). 34 - Device according to any one of claims 1 to 10 characterized in that each part (2,2 ') consists of a molded half-shell comprising a bottom wall (8,8'), side walls (2a, 2b) and (2'a, 2'b) and distal transverse walls (10,10 '), the half-shells being articulated around a transverse axis (3). 35 - Device according to any one of claims 34 or 36 characterized in that each half-shell (2,2 ') comprises two feet (41a, 41b) and respectively (41' a, 41 'b) articulated around transverse axes in the middle part of the side walls (2a, 2b) and respectively (2 'a, 2'b), said feet (41a, 41b) and (41 "a, 41' b) extending along the faces outside of the side walls (2a, 2b) and (2'a, 2'b) parallel to the latter in recesses (42) and respectively (42 ') formed on the outside faces of said side walls (2a, 2b) and ( 2 'a, 2'b) half shells (2,2') 36 - Device according to claim 34 characterized in that the seat (4) consists of a generally rectangular piece of fabric comprising along its longitudinal edges of the beads (16) and fixing means (44) able to cooperate with complementary fixing means (45) integral with the internal faces of the side walls (2a, 2b) and (2'a, 2'b), said complementary fixing means (45) being positioned slightly set back from the upper edges of the side walls (2a, 2b) and (2'a, 2'b). 37 - Device according to claim 36 characterized in that the seat (4) is extended by generally rectangular pieces of fabric (46,46 ') forming flaps capable of closing openings (47,47') formed in the walls bottom (8.8 ') of the half-shells (2.2'), the free ends of the flaps (46.46 ') comprising fixing means (48.48') able to cooperate with complementary fixing means (49,49 ') positioned at the edges of the openings 47,47') on the outside of the bottom walls (8,8 '). 38 - Device according to any one of claims 1 to 10 characterized in that on the one hand the first part (2) of the frame (1) consists of a tube (57) bent to form in an inclined plane a U whose base (58) extends generally horizontally and whose ends of the branches (59a, 59b) are folded in the vertical plane to form a V lying comprising two horizontal branches (60a, 60b) from the inclined branches (59a ) and respectively (59b) extending generally horizontally and on the other hand the second part (2 ') of the frame of the device consists of a tube (57') bent to form in an inclined plane from top to bottom from the outside towards the first part (2) of the frame, a U whose base (58 ') extends generally horizontally and whose free ends of the branches (59'a, 59'b) are articulated around the transverse axis (3) and are articulated elastically at the free ends of the tubes horizontal support (60 'a, 60' b) extending respectively in vertical planes parallel orthogonal to the transverse axis (3), the distal ends of the tubes horizontal support (60 'a, 60' b) being folded in a vertical plane to form telescopic vertical branches (62 'a and 62' b) whose upper free ends are secured at the intersection between the horizontal base (58 ') and the inclined branches (59' a, 59 'b) of the part (2') of the frame (1). 39 - Device according to claim 38 characterized in that it comprises a compartment (31) generally parallelepipedal obtained in fabric or in any other flexible material capable of being threaded into the part (2) of the frame (1) to form an upper wall (7), a bottom wall (8), side walls (2a, 2b_) and a transverse wall (10) coming from the bottom wall (8). 40 - Device according to any one of claims 38 or 39 characterized in that it comprises a baby carrier (63) consisting of a generally parallelepiped bag obtained in fabric or in any other flexible material open at a first end comprising at its opposite end with two holes (64) for the passage of a baby's legs, said baby carrier (63) comprising two pairs of straps, a first pair of so-called upper straps (65) secured close to the opening of the baby carrier (63) and a second pair of so-called lower straps (66) secured close to the troeus (64) for the passage of the baby's legs, said baby carrier (63) having dimensions slightly smaller than the dimensions of the second part ( 2 ') of the frame (1) in order to allow its introduction between the various elements of said second part (2') of the frame. 41 - Device according to any one of claims 38 to 40 characterized in that it comprises metal hooks (67) mounted free in rotation around the tubular base (58 ') of the part (2') and able to cooperate with the tubular base (58) of the part (2) of the frame (1). 42 - Device according to any one of claims 1, 2, 6 to 41 characterized in that it comprises a modular strap (68) consisting of a strip in the general shape of an inverted U, which strap is provided with four assemblies (69,70,71,72) for securing said strap (68) on the parts (2,2 ') of the frame (1), which assemblies are arranged respectively at the free ends of the strap (68) and on either side of the curved zone of the U, these securing assemblies (69,70,71,72 ) being constituted by the interlocking of male and female elements, a male or female part of each set (69,70,71,72) being subject to the strap (68) and the corresponding part being subject to the frame ( 1) of the device. 43 - Device according to claim 42 characterized in that the elements of the fastening assemblies (69,70,71,72) fixed respectively on the strap (68) or on the frame (1) are alternately male and female. 44 - Device according to any one of claims 1 to 43 characterized in that it comprises a generally flat piece, for example of rectangular shape, articulated at the top of the arch (12) and overhanging the seat (4), intended to serve as a sun visor or umbrella. 45 - Use of the device according to any one of claims 3 to 44 in booster seat. 46 - Use according to claim 45 implementing the device according to claim 43 characterized in that the device is subject to a chair (73), on the seat of which the device is placed, by separating from the frame (1) the fastening assemblies (71,72) fixed to the free ends of the modular strap (68) and joining together under the seat of said chair (73) the respectively male or female elements (71 ', 72') of said sets ( 71,72), after having placed the modular strap (68) over the back of said chair (73) in order to provide a retention of the device at the back and the seat of said chair (73). 47 - Use of the device according to any one of claims 42 or 43 in backpack.