FR2840788A1 - Child's chair has seat and back connected by pivot, front of seat being pivoted on frame and back having cylindrical mounting fitting over frame and carrying plate which moves in vertical slides on back - Google Patents

Abstract

The child's chair has a seat and a back (2) which are connected by a pivot (63). The front edge of the seat is attached to a frame (3) by a second pivot (32). The back has a cylindrical mounting (4) on its rear side which fits over the top of frame. A plate (41) attached to the mounting slides in vertical guides (21) on the back, allowing its slope to change.

Description

on all surfaces more or less largest Childcare device a

  seat with adjustable angle between seat and

  changeable backrest, and hammock match.

  The field of the invention is that of childcare, and in particular childcare devices in which a child can be installed in a seated position, such as strollers for children, or deckchairs. More precisely, the invention relates to a childcare device with a tilting and angled hammock

  seat variable according to its inclination.

  We already know many hammock strollers, or basket, reclining. Conventionally, the hammock is mounted on the stroller chassis, and various wind means provided, on the chassis, to guide, set up and

  keep the hammock in the desired position.

  An improvement has been proposed by the owner of this patent application. Wile is in particular described in patent document EP-99 460 003 and lS consists in varying the opening angle of the seat of the hammock, as a function of its inclination. Thus, when the hammock is in a straightened position (seated position), the angle formed by the seat element and the backrest element of the hammock, or angle of

  the seat, is of the order of 110, in fa, con has form an armchair, with file.

  Conversely, when the hammock is in the extended position, the angle formed by the seat of the hammock opens strongly (of the order of 160. In this way, the child is comfortably as if the hammock is in sitting position, and lying down, when the hammock is lying down. Intermediate positions can of course

be planned.

  To obtain this result, the hammock presents, seen from the side, a deformable triangle structure. The hypotenuse of this triangle is formed by the frame of the hammock. The other two sides (seat part and back part) have two stiffening elements (conventionally planks made of plastic) articulated at their common top. The frame is designed so that its length can vary. Variations in this length automatically cause the opening or closing of the angle formed by the seat part and the back part. More precisely, in the seated position, [the armature has a minimum length, and in the extended position, a maximum length]. For this, the frame is designed in two parts, an upper part and a lower part, the upper part being able to telescopically penetrate into a portion of the lower part. This telescoping is very effective in theory. However, it poses many problems in practice. It requires a very precise adjustment, and remains unreliable over time. The slightest defect, the slightest deformation and / or foreign body can disturb or even block the relative movement of a part through

compared to the other.

  Furthermore, maintaining the hammock at a given inclination, and with the opening of the desired seating angle, can be ensured by means of a set of rods secured to the stroller chassis. Such a mechanism is however relatively complex, tent as regards its assembly, during the manufacture of the stroller, than its use. It is particularly very impractical in the case where the hammock is intended to be used alternately in position

  seated facing the road and in a seated position facing the mother.

  More generally, known systems have numerous drawbacks, with regard to their manufacture: - large number of moving parts; - significant assembly time, as far as its use is concerned: - uneasy handling; - difficulties in the case of a reversible hammock (position facing the road and position facing the mother); security problems, due to the fact that the child can act on the

  tilt adjustment elements.

  In the precise patent document, an improvement is proposed, according to which the hammock comprises, on each of its sides, a guide piece integral with one of said parts of the frame and having an oblong light in which a lug of guidance integral with the other part of the frame, the displacement to said guide pin in said oblong lumen making it possible to control said length of the frame and the inclination to said hammock. Thus, the means ensuring and controlling the positioning and opening of the angle of the seat are only integral with the hammock (and therefore independent of the chassis). The guide piece is monobloc, and can easily be manufactured and mounted on the stroller. The manufacturing cost is therefore reduced, compared to

known techniques.

  However, despite the significant improvement that this solution brings about

  compared to previous techniques, the other drawbacks remain.

  Indeed, there remain difficulties during assembly of the assembly, in particular due to the precise adjustment which it is necessary to proceed to obtain a

satisfactory operation.

  In addition, as already mentioned, the principle of the armature composed of two parts which can slide relative to each other regularly causes problems: the sliding parts wear and / or become clogged, which can lead has blockages of the mechanism, to the point of rendering the manipulations of the

  painful, if not impossible, hammock for the user.

  In addition, such a stroller remains relatively expensive to manufacture and assemble. The invention particularly aims to overcome these different

disadvantages of the state of art.

  More precisely, a first objective of the invention is to provide a child care device, with a tilting hammock and variable opening angle of the seat, which is more manageable and simpler than the devices of known techniques. The inventi on thus has in particular the objective of providing such a device including the mechanism for tilting the hammock and for varying the angle of the seat.

  is not or hardly subject to blocking phenomena.

  The invention also aims to provide such a device, the

  cost is lower compared to conventional strollers of the same type.

  More precisely, the invention aims to provide such a device, the manufacturing costs as well as the assembly costs are reduced. In particular, an object of the invention is to provide such a device, the inclination and control of the angle of the seat provided by a number of

reduced parts.

  Another objective of the invention is to provide such a device, the hammock of which can be placed in the desired position in a simple and safe manner, preferably by a person restarted at the back of the stroller, and without the child

  can interact on this position itself.

  Yet another objective of the invention is to conserve the advantages of the solution described in document EP-99 460 003, and in particular: easy separation / easy attachment of the hammock to the stroller frame; - reversible hammock, without heavy and complex handling;

  - easy use of optional equipment attached to the hammock.

  These objectives, as well as others which will appear subsequently, have been achieved thanks to the invention which relates to a childcare device comprising a hammock having a seat formed by two parts, a seat and a backrest, articulated one by relative to each other and mounted each articulated on a frame intended to be secured to the chassis to said childcare device, characterized in that at least one of said seat parts is connected to said frame using [...] means of attachment which can take at least two distinct positions relative to said seat part and fixed relative to said frame, so that the angle formed between said seat and said back can be. This gives a childcare device with a reclining hammock and variable opening angle of the seat more reliable and simpler than the s

known techniques.

  Indeed, the mechanism of tilting the hammock and varying the angle of the seat does not put into effect the classic principle of a frame made up of two pieces sliding relative to each other. The disadvantages related to this principle are therefore avoided, namely the risks of blockage or malfunction due to the deformation or wear of the sliding parts or the presence

between them foreign bodies.

  In addition, the difficulties associated with mounting and

  adjustment of sliding parts.

  According to a preferred solution, said joining means being able to

  take at least two distinct wind positions associated with the seat audit file.

  Preferably, said means of securing the wind linked to said part

  seat by a sliding pivot type connection.

  Advantageously, said frame is mounted on the other of said seat parts by means of a pivot link and in that the length of the frame portion

  which extends between said sliding pivot link and said pivot link is fixed.

  It is therefore clear that the childcare system according to

  [The invention dispenses with any telescopic mechanism.

  Of course, the integration into the device of telescopic parts can of course be envisaged, for example to adjust the position of a footrest or a headrest. However, the functioning of the mechanism for tilting the hammock and varying the angle of the staff seat is beyond the reach of

  has any telescopic part, unlike the solutions of the prior art.

  Salt has an advantageous solution, the said soli dari s ati means have at least one part forming a housing for a cylindrical portion of said frame 3, in which said cylindrical portion is movable in rotation, and at least one part forming a plate sliding, compared to at least one

  guide and / or holding element formed on said seat part.

  In this case, said sliding plate is preferably guided and / or

held by two slides.

  According to an advantageous solution, said seat comprises means of indexing the position of said securing means relative to said

seat part.

  There are thus means available for modifying, according to different predetermined positions, the inclination of the hammock and the seating angle. Preferably, the indexing means comprise at least two recesses. Of course, other means of indexing can be envisaged in other modes of rea] isation without departing from the scope of the invention, and in particular

any male / female type connection.

  According to a preferred solution, the childcare device comprises means for locking said securing means relative to said seat part. In this case, said locking means advantageously wind

  actuated, at least for unlocking, by a single handle.

  Preferably, said handle is mounted in the upper part of said backrest, so as to allow the unlocking and the control of the inclination at said

hammock, with one hand.

  The device according to the invention is therefore particularly simple and practical to use.

  Advantageously, said handle is mounted on said plate.

  Preferably, said locking means comprise

  return means automatically returning them to a locked position.

  An essential security is thus obtained in the field of childcare, this level of security being achieved by automatic means avoiding carrying out a succession of gestures on the part of the user such as

  this is often necessary with conventional solutions.

  According to an advantageous solution, said seat is secured to said

  armature, free to rotate, in the vicinity of its free end.

  Advantageously, said frame defines a firm perimeter

essentially rectangular.

  According to a preferred solution, said frame is pivotally mounted on

said chassis.

  In this case, the device preferably implements two similar connection assemblies mounted on said chassis and articulated relative to the latter, said connection assemblies also being pivotally mounted on said frame, on the one hand, and on one at least of said seat parts on the other hand, so that the pivoting of said frame relative to said chassis modifies

  ['angle between said seat 1 and said folder.

  Advantageously, said handle also makes it possible to control the adjustment.

  of the position of said frame relative to said chassis.

  According to another characteristic, said hammock is reversible as a result of said A. chasss. According to an advantageous application of the invention, the device for

  childcare is a stroller for children.

  The invention also relates to a hammock intended to equip a device

  of childcare as described above.

  Other features and advantages of the invention will become more apparent

  clearly on reading the following description of an embodiment given to

  by way of illustrative and nonlimiting example and of the drawings among which: - Figures 1 and 2 are two perspective views of a hammock according to the invention, in the seated position, respectively from the front and from behind; - Figures 2 and 3 are two perspective views of a hammock according to the invention, in the lying position, respectively from the front and from behind; - Figures 5 to 7 are views of the indexing means equipping a hammock according to the invention The invention therefore presents a new solution allowing the angle formed by the seat and the back of a hammock to be varied efficiently and simply

for a childcare device.

  A hammock according to the invention is described below, intended to equip a stroller. Note however that the invention can be applied to other childcare devices, such as in particular deckchairs, chairs, car seats. With reference to FIGS. 1 and 2, the hammock of a stroller has a seat shaped like a a seat 1 and a backrest 2, articulated relative to each other, so that the angle between the seat and the backrest can be modified between two configurations, one in which the child occupies a sitting position and the other

  in which it occupies a lying position.

  Such a hammock also includes a frame 3 on which wind

  pivotally mount the seat and the backrest as will be explained later.

  This frame 3, defining an essentially rectangular perimeter, is intended, according to an advantageous embodiment, to be secured to the chassis

a child's stroller.

  According to the present embodiment of the invention, a cylindrical portion of the frame 3 is housed mobile in rotation in a housing 4 secured to a plate 41, capable of sliding along slides 21 formed on the backrest 2. The housing 4 and the plate 41 thus form securing means which can take, according to the invention, distinct positions relative to one of the parts of the seat (here the backrest), while they occupy a fixed position relative to

to the frame 3.

  Such a connection, of the sliding pivot type, makes it possible to modify the angle between the seat and the backrest, without having to resort to a telescopic frame. It is indeed noted that the length of the armature potion, which extends between the sliding pivot link with the backrest and the pivot link 31 with the seat,

is fixed.

  It is specified that, according to other possible embodiments, the

  securing means linking the armature 3 and the backrest 2 could also, or

  alternatively, be provided between the frame and the seat.

  The handle 5 is mounted in the upper part of the backrest 2, thus allowing the user to obtain the unlocking and the control of the inclination of the hammock,

with one hand.

  FIGS. 5 and 6 show views of means for indexing the position of the plate 41, and therefore of the housing 4, relative to the backrest 2. In FIG. 5, the device is in the locked position, the handle 5 being in rest position. Locking is achieved through locks 52

  operated with pins 521 which can circulate in inclined lights 511.

  The latches 52 and the pins 521 wind couple to each other so that

  1st movement of the pins leads to that of the locks.

  In such a position of the handle 5, these verTous 52 interact with the slides 411de fac, we block the sliding of the plate 41 by

report on file 2.

  Of course, in such a configuration, it is not possible to modify

  The inclination of the hammock or the angle of the seat.

  To obtain the unlocked position illustrated in FIG. 6, the handle 5 is pulled upwards, which entrains the pins 521, which move in the lights 511, from the position they occupy in FIG. 5 towards the position that 'they occupy in Figure 6. In other words, the pins 511 move towards each other, so we have to disengage the latches 52 of the slides 411. The plate 41

  can then slide freely in relation to the backrest 2.

  The hammock can thus be inc line and the angle of the seat changes according to different possible positions, the locked position in the desired position being obtained simply by releasing the handle 5 which automatically returns to the position illustrated by FIG. 5 thanks has recall means (not shown)

to which it is coupled.

  In addition, the position of the plate 41 along the backrest 2 is indexed, that is to say that means of indexing are provided so that the plate 41 can occupy predetermined positions correspond to as many inclinations.

separate from the hammock.

  To do this, the slides 411 of the plate 41 have

  recesses 412 forming housings for the locks 52.

  Thus, by acting on the handle 5 as indicated above, the latches 52 are disengaged from one or the other of the recesses 412, the plate 41 is moved along the backrest 2, puts, by releasing the handle 5, the latches 52 come to engage in another recess 412 to ensure the locking of the

  hammock in a new predetermined configuration.

  According to the operation which has just been described, it is therefore understood that the handle allows, with one hand, to unlock the plate with respect to the backrest, polka dots, while maintaining the handle pulled upwards, to modify the inclination

  hammock as well as the seat angle.

  As indicated above, the frame 3 is advantageously mounted on the chassis of a stroller for children, using two connecting assemblies 6 each having a recess 61 con, cu to accommodate an element secured to the chassis, so that the frame can pivot relative to the stroller chassis. These sets of cone wind connections, designed to be easily assembled and disassembled from the stroller chassis, whether to orient the hammock facing the

  road or, conversely and in reverse, reversible, facing the adult pushing the stroller.

  According to this embodiment, the connection assemblies 6 free wind with rotation relative to the one hand, to the armature using pivot connections 62 and,

  on the other hand, compared to the file 2 using a pivot link 63.

  In this way, we, the pivoting of the frame relative to the chassis automatically modifies the angle between the seat 1 and the backrest 2, as will be

  explains in more detail later.

  The operation which allows the modification of the inclination of the hammock relative to the stroller chassis, as well as that of the angle between the seat and the

  folder will now be explained.

  Let us take the hypothesis where the frame and the seat occupy a straightened starting position, illustrated by FIGS. 1 and 2, in which the child occupies a sitting position, and suppose that the user wishes to modify the position of the

  hammock to bring the child in a lying position.

  From this upright position, the user actuates the handle 5, causing the unlocking of the plate 41 relative to the backrest 2 (as has been described above), and allowing the pivoting of the frame 3 relative to the chassis the stroller (note however that the unlocking of the frame relative to the chassis may have been carried out beforehand by the user, a

  (using additional and / or independent commands).

  By keeping the handle 5 actuated, and accompanying it towards the teas, the user accompanies the tilting of the armature 3 towards a position such

  as that illustrated by FIGS. 3 and 4.

  During this movement, the frame 3 rotates inside its housing 4 while the plate 41 moves along the slides 21 of the backrest 2, to

  come in a position such as that shown in Figure 4.

  Simultaneously, the link assemblies 6 pivot around the link 62 relative to the frame to gradually occupy a position in which they extend substantially along the frame 3, as it appears

in figure 3.

  As this maneuver progresses, and thanks to the pivot links 62, 63, 31 combined with the sliding pivot link between the frame 3 and the backrest 2, the angle between the seat 1 and the backrest 2 gradually opens. , to finally occupy a position allowing the child to lie down, as illustrated by Figures 3 and 4. Note that points 4, 31, 7 and 63 therefore define a quadrilateral

  deformable, allowing the hammock to be adjusted according to the invention.

  The user then releases the handle 5, which, thanks to its return means,

  locks the hammock in the desired position.

  Of course, the user can at any time release the handle in a

  intermediate position, this being facilitated by the presence of the indexing means.

  The transition from the lying position to the sitting position is obtained by

  proceeding in reverse order of the steps which have just been described.

Claims (21)

  1. Child care device, comprising a hammock with a seat formed by two parts, a seat (1) and a backrest (2), articulated relative to each other and mounted each articulated on a frame (3) intended to be secured to the chassis to said childcare device, characterized in that at least one of said seat parts is connected to said frame (3) by means of fastening means (4) which can take at least two distinct positions with respect to said seat part and fixed with respect to said frame, so that the angle formed between said seat (1) and said backrest (2) can be modified. 2. Childcare device according to claim 1, characterized in that said securing means (4) can take at least two positions   separate wind associated with the file (2) audit seat.   3. Childcare device according to any one of claims 1 and 2,   characterized in that said securing means (4) are linked to the said party   seat by a sliding pivot type connection.   4. Childcare device according to any one of claims l to 3,   characterized in that said frame (3) is mounted on the other of said seat parts by means of a pivot connection and in that the length of the frame portion   which extends between said sliding pivot link (31) and said pivot link is fixed.   5. Childcare device according to claim 3 or claim 4, characterized in that said securing means (4) have at least one part forming a housing for a cylindrical portion of said frame (3), in which said cylindrical portion is movable in rotation, and at least one part forming a sliding plate (41), relative to at least one element of   guiding and / or holding shape on said seat part.   6. Child care device according to claim 5, characterized in that   said sliding plate (41) is guided and / or held by two slides (21).   7. Child care device according to any one of claims I to 6,   characterized in that said seat comprises means for indexing the position   said fastening means (4) relative to said seat part.   8. Salt pueiculture device is claimed 7 ation, characterized in that said indexing means comprise at least two recesses (412).   9. Pue1iculture device according to any one of claims 1 to 8,   characterized in that it comprises locking means (52) of said means   for securing in relation to said seat part.   10. Child care device according to claim 9, characterized in that said locking means (52) are actuated, at least for the   unlocking, by a single handle (5).   11. Child care device according to claim 10, characterized in that said handle (5) is mounted in part superior to said backrest (2), so as to allow the unlocking and the control of the inclination to said hammock, only one 1 5 hand.   12. Childcare device according to claims 2, 10 and 1'une   any one of claims 5 to 8, characterized in that said handle (5) is mounted on said plate (41).   13. Child care device according to any one of claims 9 a   12, characterized in that said locking means (52) comprise   return means automatically returning them to a locked position.   14. Pueiculture device according to any one of claims 2 a   13, characterized in that said seat (1) is secured to said frame (3), free   in rotation, near its free end.   15. Child care device according to any one of claims 1 a   14, characterized in that said frame (3) defines a closed perimeter essentially rectangular.   16. Child care device according to any one of claims l a   , characterized in that said frame (3) is pivotally mounted on said frame.   17. Child care device according to claim 16, characterized in that it covers two similar connection assemblies (6) mounted on said chassis and articulated with respect to the latter, said connection assemblies (6) also being mounted on pivoting on said frame (3), on the one hand, and on at least one of said seat parts on the other, so that the pivoting of said frame (3) relative to said chassis modifies the angle between said seat (1) and said folder (2).   18. Childcare device according to claim 17 and any one   claims 10 to 12, characterized in that said handle (5) allows   also control the adjustment of the position of said armature (3) relative audit chassis.   19. Child care device according to any one of claims 1 a   18, characterized in that said hammock is reversible relative to said chassis.   20. Child care device according to any one of claims 1 a   19, characterized in that it is a stroller for children.   21. Hammock intended to equip a childcare device according to one