FR2902065A1 - Stroller for infant, has locking unit taking locked position, in which semi-bows are integrated with respect to each other to form retaining bow, and unlocked position, in which semi-bows are moved away from each other using return unit - Google Patents

Abstract

The stroller has a retaining bow formed of two semi-bows (21, 22), where each semi-bow is integrated to a chassis or stroller body. The semi-bows are integrated to a middle of the retaining bow by a locking unit that comprises male and female elements (231, 232) on respective semi-bows (21, 22). The locking unit takes a locked position, in which the semi-bows are integrated with respect to each other for forming the retaining bow, and a unlocked position, in which the semi-bows are moved away from each other using a return unit e.g. pull-off spring.

Description

Stroller for children, with a two-piece support bar. The domain of

  the invention is that of childcare, and more specifically strollers equipped with a hoop for keeping a child in a seat. More specifically, the invention relates to the implementation of such holding arches. Many child carriages, or pushchairs, equipped with a roll bar, are already known to keep a child in the seat, or hammock, of the stroller, and prevent it from falling or becoming agitated. Such an arch improves the safety of the child.

  A disadvantage of these arches is that they are generally removable, to allow the installation or removal of the child, and sometimes also the folding of the stroller. The solidarity and the disconnection of this hoop to the hammock are often uncomfortable, and not very ergonomic. In addition, once disconnected, the arch becomes an independent piece that must be stored and kept independently of the rest of the stroller. Thus, before installing a child, it is necessary to disassemble the support bar, place the child in the hammock, after having placed the support bar for example on a table or on the ground, then put back in position the arch maintaining, successively securing both ends to the hammock.

  These operations are relatively long, and impractical. Regarding the folding of the frame of the stroller in three dimensions, it has been proposed to provide a hinge in the middle of the hoop. This aspect effectively improves the folding, but does not change the ergonomic problems of installation and removal of the child.

  The invention particularly aims to overcome these disadvantages of the prior art. More specifically, an object of the invention is to provide a stroller equipped with a support bar which allows a simple and practical introduction and removal of a child, without complete disassembly of the arch.

  The invention also aims to provide such a stroller, which does not require many manipulations or complex, and is easily used by a single person, even if it carries the child in his arms. According to one aspect of the invention, an object is to provide such a stroller that can be folded in a simple and effective manner, without the need to remove the support bar. The invention also aims to provide such a stroller, which is relatively simple to manufacture and implement. These objectives, as well as others that will appear thereafter, are achieved with the aid of a stroller for children, including a support bar for holding a child sitting in said stroller. According to the invention, said hoop is formed of two half-hoops of which one end is articulated on the frame or on the hammock of said stroller and the second end is equipped with locking means, so as to take at least two positions: - A locked position, wherein said half-arches are secured to one another to form said hoop; an unlocked position, in which said half-arches are distant from each other. Thus, it is possible to install or take out a child in a simple and effective way, without disassembling the hoop. According to a preferred embodiment of the invention, the stroller comprises return means acting on said half-arches, so as to move them away from each other in said unlocked position. This further facilitates the installation of the child, since the half-arches depart automatically. A user can act on the hoop with one hand, while carrying the child. Advantageously, said biasing means comprise an angular spring acting on said first end of each of said half-hoops. According to an advantageous embodiment, said locking means comprise, for a first of said half-hoops, a male element extending in the extension of said first half-arch, for the second of said half-hoops a female element, and means for unlocking control mounted on said second half-hoop. Advantageously, said release control means 5 comprise a sleeve sliding parallel to the axis of said second half-hoop. Again, this allows one-handed manipulation. If necessary, a security, for example in the form of a pin, can be added to lock the sleeve in the locked position. According to an advantageous characteristic, only said female element comprises mobile means for securing and / or detaching said male and female elements. Preferably, each of said half-hoops is secured to said frame or said hammock by a connecting element allowing a first rotation 15 of said half-hoop to move from said locked position to said unlocked position, and vice versa, and a second rotation allowing a moving from an unfolded position to a folded position, and vice versa. This reduces the size of the stroller, when folded, without the need to disassemble the hoop. Advantageously, in said folded position, said arch is brought upwards, close to the back of said hammock. According to another advantageous aspect of the invention, each of said half-hoops carries, in the vicinity of said second end, a third hinge making it possible to reduce the distance between said first ends, during the folding of said stroller, while maintaining said half-hops. hoops in locked position. Thus, it is possible to implement a folding type 3D, still without dismantling the hoop.

  Preferably, in this case, said return means also act on said half-arches so that they take a folded position, during said folding. Other features and advantages of the invention will appear more clearly on reading the following description of a preferred embodiment, given as a simple illustrative and nonlimiting example, and the appended drawings in which: FIG. 1 shows an example of a stroller equipped with a support hoop according to the invention; - Figures 2a and 2b show more precisely the support bar of the stroller of Figure 1, respectively in the locked position and unlocked position; FIGS. 3a and 3b illustrate an example of locking according to the invention; Figure 4 shows a portion of the holding bar according to the invention, in the unfolded position and in the folded position, and reveals the different axes of rotation. The invention therefore proposes a new approach to the support bars for a stroller. These consist of two half-arches, so as to be spaced from each other in an unlocked position, facilitating the establishment and removal of a child in the hammock. As will be seen later, preferably, return means ensure the automatic spacing of the two half-arches, to facilitate access to the hammock. Figure 1 shows, for example, a stroller equipped with such a bow. Such a stroller comprises a frame 11, classically foldable. A hammock 12 is secured to the frame 11. In the embodiment illustrated here, the frame provides a three-dimensional folding, so that the stroller is very compact in the folded position. It will be seen later that the hoop 13 is adapted accordingly.

  Of course, a holding bar according to the invention can be implemented on many other types of stroller, regardless of the shape and kinematics of the frame or its hammock. In this embodiment, the holding arch is secured to the hammock. In other embodiments, it may be provided that it is attached to frame members. The structure of the holding bar according to the invention is more precisely distinguished in FIGS. 2a and 2b, respectively having this holding bar in the locked position and in the unlocked position.

  Indeed, according to the invention, the holding bar is constituted by two half-shafts 21 and 22, which can be secured in the middle of the bow by locking means 23. These locking means comprise, on the half 21, a male element 231, and on the half-hoop 22, a female element 232 provided to cooperate with the male element 231 to ensure the locking and unlocking of the hoop. The other two ends 24 and 25 of the half-arches are secured to a hammock piece, which can also ensure the attachment of the latter to the frame, for example according to the technique developed by the applicant of the present patent application, known under the name of Moduloclip (registered trademark). This connection is indémontable. Indeed, according to the invention, it is no longer necessary that the holding arch is disassembled at each use. As will be described in more detail later, this connection is pivotable at least along an axis of rotation, to allow the two half-hoops 22 and 23 to be spaced from each other in the unlocked position, as illustrated. in Figure 2b. Preferably, a return spring (not shown) is provided at these ends 24 and 25, so that the spacings of the two half-arches 21 and 22, as illustrated in Figure 2b, are automatically, when the Unlocking means are unlocked. This facilitates handling, and ensures that the two half-hoops remain apart from each other during the installation or removal of the child. Several types of locking half-arches can of course be considered. According to an advantageous embodiment, because easy to implement and manipulate, we can adapt the mechanism for fixing child care accessories developed by the Applicant, and known as Modulofix (trademark). The principle of this technique is illustrated in Figures 3a and 3b, showing in section the locking mechanism, respectively in the locked position and in the unlocked position. As described in FIG. 3, the male element 231 here has a hexagonal section 31. It can of course present other forms, according to the needs. The locking is obtained by the cooperation of a lug 32, integral with the female element 232, and a housing 33 provided in the male element, to receive the lug 32. Thus, as soon as the male element 231 is introduced into the female element 232, these two elements are secured to one another. It is not possible to move them away from each other by simply acting on one and / or the other half-arches. To ensure the unlocking, however, it suffices to act on the ring, or sleeve, 31. The latter is held in the locking position (FIG. 3a) by a return spring 35. When the ring is acted upon ( arrow 36, FIG. 3b), by opposing the restoring force of the spring 35, the stopper 37, mounted on this ring 36, is moved and which acts on an extension 38 secured to the pin 32, in order to make it come out of housing 33.

  The two half-arches are then unlocked, and automatically move away from each other under the effect of the return means. It is thus possible to lock and unlock the hoop, with one hand. As already mentioned, the holding bar of the invention is well suited to a three-dimensional folding stroller (i.e., whose width is reduced in the folded position), although the roll bar is advantageously secured to the hammock indemountably. For this, several axes of rotation must be provided, as shown in FIG. 4. In this figure, which presents for simplification only a half-hoop 21 complete and only a portion of the half-hoop 22, we see that the connecting element 41 which secures the half-hoop 21 to the structure of the hammock comprises a first axis of rotation 42, which ensures the opening and closing movement 43. As already mentioned, an angular spring allows the maintaining the half-arch outside when the lock is not active. This axis of rotation 42 is also implemented during the folding of the stroller. In Figure 4, there is illustrated the two positions: - A position in which the stroller is unfolded; -B, position when the stroller is folded.

  Indeed, during folding, the two side edges of the stroller are close to one another, and the arc defined by the hoop can not be maintained. In other words, the two ends 24 and 25 are close to each other, and to compensate for this approximation, there are two complementary axes of rotation 44 and 45, at the connection of the locking elements and unlocking the half-arches. These axes of rotation 44 and 45 make it possible to reduce the angle formed between the half-arches and the locking elements, as illustrated by the arrow 46. Thus, it is possible to bring the ends 24 and 25 together without unlocking the hoop. maintenance. It can remain locked even in the folded position.

  Furthermore, the connecting element 41 advantageously comprises another axis of rotation 47, substantially perpendicular to the axis 42, which makes it possible to bring the support bar back close to the back of the hammock, when the stroller is folded, in order to to further reduce clutter.

Claims (10)

  1. A stroller for children, comprising a holding bar (13) for holding a child sitting in said stroller, characterized in that said bow is formed of two half-arches (21, 22), a first end is articulated on the chassis or on the hammock of said stroller and the second end is equipped with locking means (231, 232), so as to take at least two positions: - a locked position, wherein said half-arches are secured one to the other to form said hoop; an unlocked position, in which said half-hoops are distant from each other.   2. Stroller according to claim 1, characterized in that it comprises return means acting on said half-arches (21, 22), so as to move them away from each other in said unlocked position.   3. Stroller according to claim 2, characterized in that said biasing means comprise an angular spring acting on said first end of each of said half-arches (21, 22).   4. Stroller according to any one of claims 1 to 3, characterized in that said locking means comprises for a first of said half-hoops, a male element (231) extending in the extension of said first half-hoop (21). ), for the second of said half-hoops (22) a female member (232), and unlocking control means (34) mounted on said second half-hoop.   5. Stroller according to claim 4, characterized in that said unlocking control means 25 comprise a sleeve (34) sliding parallel to the axis of said second half-arch (22).   6. Stroller according to any one of claims 4 and 5, characterized in that only said female element (232) comprises movable means (34) for securing and / or detaching said male and female elements. 9   7. Stroller according to any one of claims 1 to 6, characterized in that each of said half-arches (21, 22) is secured to said frame or said hammock by a connecting element (24) for a first rotation of said half hoop to move from said locked position to said unlocked position, and reciprocally, and a second rotation allowing passage from an unfolded position to a folded position, and vice versa.   8. Stroller according to claim 7, characterized in that, in said folded position, said bow (13) is brought upwards, near the back of said hammock.   9. Stroller according to any one of claims 1 to 8, characterized in that each of said half-arches (21, 22) carries, in the vicinity of said second end, a third hinge (44) to reduce the distance between said first ends, during the folding of said stroller, keeping said half-arches in locked position.   10. Stroller according to claims 2 and 9, characterized in that said biasing means also act on said half-arches (21, 22) to take a folded position during said folding.