Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
  • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
  • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
  • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
  • B62B7/068—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable by sliding a bushing along a rod, e.g. like folding means of an umbrella
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
  • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
  • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
  • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
  • B62B7/064—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable the handle bar being parallel to the front leg
  • B62B7/066—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable the handle bar being parallel to the front leg the handle bar moves in parallel relation during folding
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
  • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
  • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
  • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
  • B62B7/08—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
  • B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
  • B62B9/24—Safety guards for children, e.g. harness
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
  • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
  • B62B2205/02—Hand-propelled vehicles or sledges being foldable or dismountable when not in use foldable widthwise
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
  • B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
  • B62B9/20—Handle bars; Handles

Definitions

• the field of the invention is that of strollers for children. More specifically, the invention relates to a folding stroller, with reduced overall dimensions in the folded position, and the safety of a child transported in a folding stroller.
• a number of folding children's strollers are already known. Generally, the designers of such folding strollers have the main objective of providing a stroller with a small footprint, when folded.
• a first technique illustrated for example by patent document FR-1 507 446, consists in folding the stroller in the form of a bundle, the front wheels being at one end of the bundle and the rear wheels at the other end , near the handles. In the folded position, the spacing between the front wheels and the rear wheels is increased, relative to the deployed position. In other words, if folding makes it possible to reduce the overall volume of the stroller, it nevertheless results in an increase in its longitudinal dimension.
• the hammock, or nacelle, intended to support the child is mounted on two uprights substantially parallel to the push arms. Each of these uprights is integral with a sleeve sliding on the one hand along the front base, and on the other hand along the push arm. Stops are provided to define the location of the sleeves, in the folded position and in the deployed position.
• Such a stroller provides folding in a very compact volume, compared to other known techniques. However, it is desirable to obtain an even more limited final volume.
• the problem of congestion is indeed, in certain situations, crucial. This can for example be the case when you want to be able to slide the folded stroller in an automobile or a cupboard (generally at the same time as many other objects ).
• FR-2 692 162 is also described an advantageous technique of locking the stroller in the deployed position and unlocking to allow return to the folded position. According to this technique, simply rotate a portion of the handlebar of the stroller, then push on the handlebars so that the stroller folds completely.
• This locking technique is particularly ergonomic and simple to use. However, it introduces a risk of unintentional manipulation of the unlocking mechanism, causing inadvertent folding of the stroller, while a child is still present in the hammock.
• This situation can moreover generally occur with any locking system. Depending on the case, it can be caused by the person pushing the stroller, temporarily distracted or who acts for example on the inclination of the stroller, or by a child (carried in the stroller or mounted on the back of the stroller). -this). Such untimely folding can also be due to the fact that, following any problem, the locking system jumps or is loose.
• an objective of the invention is to provide a folding stroller whose size is smaller, in the folded position, than that of known strollers.
• the invention aims to improve efficiency, in terms of reduction of the size of the stroller described in document FR-2 693 162.
• Another objective of the invention is to provide such a stroller, having at least the same qualities as known strollers, in terms of safety, comfort, adjustment, etc.
• Another object of the invention is to provide a folding stroller whose folding and unfolding is done in a direct and simple manner, in a single operation, including for the retaining arch.
• an objective of the invention is to provide such a stroller equipped with a support arch which: automatically moves into a stable position for maintenance, when the stroller is deployed; folds automatically when folded, without compromising the compactness of the assembly.
• an objective of the invention is also to provide such a folding stroller which is very compact, in the folded position, despite the presence of a support arch.
• the invention also aims to provide such a folding stroller, which is a reduced cost, especially with regard to the support arch. 3-3- anti-aliasing security
• Another object of the invention is to provide a stroller for children which keeps the latter safe, in the event of untimely unlocking of the device for holding the stroller in the deployed position.
• Another object of the invention is also to provide such a stroller, the safety device of which does not influence the normal operation of folding and unfolding.
• the invention aims to provide a security device whose operation is transparent to the user.
• an objective of the invention is to provide such a device which does not make unfolding more complex, which does not risk introducing friction, or even blocking during folding or unfolding, and which does not require any additional manipulation. for the user.
• Yet another objective of the invention is to provide such a safety device, which does not affect the size of the stroller, in the folded position.
• the invention also aims to provide such a device which is inexpensive to manufacture, and simple to manufacture, to assemble and to implement.
• a folding stroller of the type having two push-arms capable of sliding substantially parallel to the legs of the chassis of said stroller , between two extreme positions: a deployed position, in which said push arms are deployed, said stroller developing a hammock ready to receive a child; and a folded position, in which said push arms are at least partially brought back along said legs, so as to reduce the size of said stroller, each of said push arms carrying at least one support element of said hammock, integral with an upper part of said hammock and movable in translation relative to said push arm, on a predetermined portion of the latter.
• the technique of the invention is based on a new technique, and not obvious, consisting in securing the hammock directly to the push arms, by means of elements movable in translation. This approach is not obvious, in particular because the person skilled in the art considered that he was necessary, to allow optimal folding, to leave the push arms completely free.
• the technique of the invention makes it possible to optimize compaction, in the folded position, while limiting the number of parts required, and the complexity of the latter.
• the handling of the stroller nevertheless remains very simple.
• said support elements are slides mounted to slide on said push arms, said slides being secured to said hammock.
• the upper part of said hammock is secured to said slides by means of a link passing through said slides and circulating at the rear of said hammock.
• the length of said link is advantageously adjustable, so as to allow the inclination of said hammock to be modified.
• the internal surface of the slides has a guide element cooperating with a corresponding boss (or groove) formed on said predetermined portion of said push arm.
• the slide In the folded position, the slide can come into contact with the handle of the pusher arm, to optimize compaction.
• said hammock comprises two lateral guide rods, floating, extending substantially over the entire height of said hammock, the lower part of each of said rods being slidably mounted on a guide element integral with the lower end of the corresponding push arm.
• these rods do not have the function of supporting the hammock, unlike the amounts used according to the prior art.
• this function is provided by support elements, such as slides.
• said movable support elements may include four slides mounted on said push arms, two upper slides secured to the upper part of said hammock, and two lower slides, secured to the lower part of said hammock.
• at least one of said mobile support elements comprises means for fixing at least one optional element, such as a sun visor or a carrying strap. 4-2- roll bar
• the folding stroller is of the type having two pusher arms capable of sliding substantially parallel to the chassis legs of said stroller, between two extreme positions: a deployed position, in which said pusher arms are deployed, said stroller developing a hammock ready to receive a child; and a folded position, in which said push arms are at least partially brought back along said legs, so as to reduce the size of said stroller.
• It comprises a movable support hoop so that it is: placed substantially in a plane defined by said push arms, in said folded position, and - maintained in a substantially horizontal plane, so as to ensure the safety of a child , in said deployed position, guiding and holding means controlled by the movement of at least one of said push arms ensuring the positioning of said holding hoop.
• the retaining arch is put in place automatically, during unfolding, without any specific manipulation or locking being necessary.
• said guiding and holding means comprise at least one link, a first end of which is integral with said retaining hoop, and the second end of which is driven by the displacement of one of said arms- pushers.
• two rods are preferably provided, cooperating respectively with each of said two push arms.
• said second end is secured, free in rotation, to a slide circulating on the lower part of one of said push arms.
• Said slide can for example be driven by a termination element, fixed to the lower end of said pusher arm.
• said second end is offset under a plane defined by said push arms, so as to facilitate the movements of the retaining arch.
• said slide slides simultaneously on said pusher arm and on the corresponding base.
• said retaining arch comprises two hooking elements each mounted to pivot respectively on a sleeve into which the end of one of said legs is introduced, and in which the corresponding push arm slides.
• Said support hoop is for example formed by two half-hoops hinged together. It may include an articulation element having two axes of rotation associated respectively with said half-arch. 4-3- anti-folding safety
• the folding stroller always of the type having two push arms capable of sliding substantially parallel to the chassis legs of said stroller, between two extreme positions: a deployed position, in which said push arms are deployed, said stroller developing a hammock ready to receive a child; and a folded position, in which said push arms are at least partially brought back along said legs, so as to reduce the size of said stroller, comprises safety means preventing the complete folding of said stroller when a child is present in said hammock, comprising at least two blocking elements mounted respectively on one of the push arms and on the corresponding base, and being able to take at least two positions : - a safety position, in which said blocking elements cooperate to prevent, or limit over a predetermined portion, the sliding of said pusher arm along said base, when a child is present in said hammock; a release position, in which said elements do not interact, allowing the sliding of said pusher arm along said base, when there is no child in said hammock.
• folding the stroller is
• the presence of a child is detected by the weight applied by the latter to the hammock.
• said blocking elements comprise: - a fixed element, mounted on the base or on the push arm respectively; a movable element, mounted on the push arm or on the base respectively, and which can pivot around the axis defined by said push arm or said base.
• the stroller is either in the safety position or in the release position.
• said movable element can thus comprise a stop bearing against said fixed element, in the safety position, and being offset with respect to said fixed element, so as to allow folding, in the release position.
• said movable element is mounted at the end of one of said push arms. It could also be mounted on the base.
• said mobile element comprises return means, tending to return said mobile element to the release position. The restoring force is such that it cannot counteract the force applied to the hammock by the weight of the child.
• said movable element has an opening or a notch cooperating with a support and guide rod for said hammock. The sliding of this rod optimizes the size and positioning of the hammock.
• said safety position corresponds to an intermediate folding position of said stroller, a clearance being provided so as to allow the stroller to be unlocked and locked in the deployed position.
• the locking means allow no play, the stroller remaining in the deployed position.
• said fixed element is a stop stud placed on one of said legs so as to allow the corresponding push arm to slide over a predetermined and limited portion of said legs.
• FIG. 1 is an elevation view of a stroller according to the invention, in the deployed position;
• Figure 2 is a rear view of the stroller of Figure 1;
• Figure 3 is an elevational view of the stroller of Figures 1 and 2 in the folded position;
• Figures 4a and 4b show, seen from above and seen from the side respectively, the upper slide of the stroller of Figures 1 to 3;
• FIGS. 1 and 4b show, seen from above and seen from the side respectively, the upper slide of the stroller of Figures 1 to 3;
• FIGS. 1 to 3 show, seen from above and seen from the side respectively, the lower lower termination element of the push arm of the stroller of FIGS. 1 to 3;
• Figures 6a and 6b show, seen from above and seen from the side respectively, the holding element of the guide rod of the hammock of the stroller of Figures 1 to 3;
• Figure 7 is an elevational view, similar to Figure 1, the stroller being equipped with a support arch;
• FIG. 8 illustrates the means for positioning and maintaining the hoop for holding the stroller of FIG. 7, in the deployed position;
• FIG. 9 illustrates the means for positioning and maintaining the hoop for holding the stroller of FIG.
• Figure 10 shows the stroller holding arch in the deployed position, seen from above;
• Figure 11 shows the retaining arch of Figure 10, in the folded position;
• Figure 12 is an enlarged partial view of the elements forming the safety device of the invention;
• Figures 13A and 13B show the movable member of the safety device of Figure 12 seen from above, in release and safety positions respectively.
• the stroller according to the invention has two lateral chassis assemblies 1a and 1b (FIG. 2).
• the side assembly indexed a.
• the other chassis side assembly comprises the same elements with the same reference numbers, with an index b.
• the lateral chassis assembly comprises a front base 2a and a rear base 3a, carrying at their lower ends a wheel, or a wheel block, 5a and 6a respectively.
• These wheels or wheel assemblies can conventionally receive suspensions, braking means, and possibly be pivotally mounted.
• the lateral chassis assembly also has a push arm 8a, ending at its upper end with a bent gripping zone 9a.
• the two gripping zones 9a, 9b can be connected together by a connecting element, so as to form a handlebar 10.
• this handlebar can also be used as a locking means and for controlling the folding and / or unfolding of the stroller, for example according to the principle described in the document FR -
• a connecting rod 21a is also provided. It is articulated on the one hand at its upper end on an axis integral with the lower end of the pusher arm 8a, and on the other hand on an axis integral with the lower part of the rear base 3a. More specifically, the upper part of the link 21a is mounted on a termination element 24a, fixed to the lower end of the push arm 8a. This element is illustrated in Figures 5a and 5b.
• a connecting sleeve 18a secures the front legs 2a and rear 3a and the pusher arm 8a.
• the upper end of the front base 2a is fixedly held by a through axis 19a.
• the upper end of the rear base 3a is pivotally mounted on an axis 20a, so that during folding the rear wheel can approach the front wheel.
• the push arm 8a can slide freely in this connecting sleeve, parallel to the front base 2a.
• the hammock, or nacelle, 25 is secured, at its upper part, to a slide 30a which can slide freely along the upper part of the push arm 8a, on a predetermined part thereof.
• the sliding zone is defined on the pusher arm, for example by a hollow boss, or a groove.
• the internal shape of the slide 30a is defined so as to cooperate with this boss 31a.
• the upper part of the hammock is for example linked to the slider 30a by a link 32.
• this link 32 passes through the two sliders 30a and 30b and circulates in a loop behind the hammock.
• the length of this link is preferably adjustable, so as to allow the tilting of the hammock to be adjusted.
• the hammock 25 has two flaps 33a and 33b, which partially cover the pusher arm and the slide (these flaps are voluntarily shown lowered in Figure 2, so as to leave the slides visible).
• the link 32 for maintaining and adjusting the inclination can be fixed to the end of these flaps.
• Two rods 36a and 36b substantially parallel to the push arms and the front legs extend along the hammock. They are held by their lower and upper ends by housings provided for this purpose in the hammock. A passer-by 35a secures the hammock to the rod, substantially at the level of the seat. These rods allow in particular to facilitate the guiding of the hammock, during folding and unfolding. For this, each rod is slidably mounted on a holding element 34a secured to the end of the pusher arm, detailed below.
• FIGS 4a and 4b illustrate an embodiment of the upper slide according to the invention.
• the section of the inner part 41 has a flat portion 42.
• This flat portion is designed so as to cooperate with a boss formed on the pusher arm 8, so that sliding is only possible on the part where the boss is produced. , and not on the part where the push arm has a perfectly circular section.
• a part, of the "clip-lock" type is provided for threading.
• the sliding zone of the slide is perfectly defined and limited. Other techniques can of course be envisaged to limit this sliding zone, such as making a groove in the pusher arm, cooperating with a pin made in the slide, or even placing a stopper in the appropriate location on the pusher arm.
• the slide also comprises two slots 43 and 44 in which the retaining link 32 of the upper part of the hammock can circulate (FIGS. 4a and 4b).
• the slide further comprises a fixing element 46, designed to receive optional elements, such as for example a sun visor (canopy) or a carrying strap.
• a fixing element 46 designed to receive optional elements, such as for example a sun visor (canopy) or a carrying strap.
• FIGS. 6a and 6b show the lower termination element 24a of the pusher arm. It is intended to receive the end of this push arm. It has an opening 51 for receiving the axis of connection with the connecting rod 23a. It also cooperates with the holding element 34a of the guide rod, illustrated in FIGS. 6a and 6b.
• This holding element is integral in translation with the element 24a, but mounted free in rotation relative to the latter. It has an opening 61 through which the pusher arm passes. It is secured to the termination element 24a by a pin (for example a screw - not shown) circulating in an oblong hole 52 formed in this termination element 24a.
• the push arms slide in the connecting sleeves 18a and 18b. Initially, the upper slides 30a and 30b remain in the same position. When they arrive in contact with the connecting sleeve, they slide and go up along the boss, until coming into contact with the handles.
• the lower holding elements 24a and 24b drive the lower end of the hammock down, by means of the rods 36a and 36b.
• the hammock 25 has not been represented in FIG. 3. It is understood that this, guided by the slides and the guide rods, folds automatically between the two lateral chassis elements. . Folding zones are provided to facilitate this operation. In the embodiment using the handlebars described in the patent document already cited, folding results in pivoting of the order of 45 ° of the push arms, towards the rear. The same pivoting movement is therefore applied to the slides 30a and 30b and to the holding elements 34a and 34b, which guide and facilitate the folding of the hammock.
• Unfolding is obtained by pulling on the handles 9a and 9b (or on the handlebars 10).
• the push arms 9a and 9b then slide in the connecting sleeves 18a and 18b, upwards.
• the slides 30a and 30b are thus driven along the bosses 31a and 31b, downwards, under the effect of the weight of the hammock 25. They thus naturally take up position in abutment on the boss 31a.
• the rods 36a and 36b at the same time cause the lower part of the hammock 25 to be put in place, sliding in the opening 64 formed in the yoke 63.
• such a stroller can advantageously be equipped with a step, a lower basket, a support hoop, ... 6-2 support hoop
• FIG. 7 illustrates a folding stroller equipped with a hoop. Reference is made to the description of FIGS. 1 and 2 for the identical elements. According to the invention, the stroller therefore comprises a retaining arch 27, held in place by the link 28a. The corresponding mechanism is illustrated in more detail in Figures 8 and 9.
• the support arch 27 is pivotally mounted on an axis 29a integral with the connecting sleeve 18a. Note that the particular shape of this sleeve is given as a simple example. It does not depend on the arch, but on the various elements that it combines (front base, rear base and push arms).
• the push arm 8a comprises, at its lower end, a termination element 24a. According to the invention it further comprises a slide 210a, which can move between this termination element 24a and the connecting element 18a. According to an advantageous embodiment, this slide 210a is double, and can also slide simultaneously on the base 2a.
• the retaining and guiding link 28a is mounted at its lower end, on an axis 211a, integral with the slide 210a.
• This axis 21a is advantageously placed on the part of the slide circulating on the base 2a, so that the axis 211a is offset relative to the push arm 8a.
• the other end of the link 28a is mounted on an axis 212a of a yoke 213a carrying the retaining arch 27.
• the support arch 27 in itself is illustrated in FIGS. 10 and 11.
• Figure 10 In the deployed position ( Figure 10), it looks like a conventional support arch. It is preferably covered with protective foam and / or a fabric.
• It comprises two half-hoops 141a and 141b secured in the middle of the hoop by a folding element 142. It is for example a folding mechanism of the type compass with two axes 143a, 143b.
• each of the half-arches is mounted on an end element 144a, 144b, secured to the connecting elements 18a, 18b by an axis 145a,
• the two half-arches 141a and 141b move around the axes 143a and 143b, so as to be able to be housed between the two lateral chassis elements without increasing the resulting bulk.
• the push arm 8a When unfolding, the push arm 8a is brought up.
• the termination sleeve 24a drives the slide 210a towards the connecting element 18a, until it comes into contact with the latter.
• the slider 210a is then immobilized, between the termination element 24a and the connecting element 18a.
• the link 28a under the effect of the slide 210a, drives the retaining arch 27, so that it takes the appropriate position, in a substantially horizontal plane, to protect the child.
• the retaining bar 27 cannot be moved, because the slider 210a is immobilized.
• the arch 27 has automatically unfolded, due to the spacing of the connecting elements 18a and 18b.
• the positioning of the retaining arch in the deployed position and its folding back into a compact form in the folded position, which requires a double movement, folding of the arch and tilting of the latter are automatic, simple and safe. If necessary, return means (not shown) can be added, to make folding and / or unfolding faster and / or more complete.
• the anti-folding safety device of the invention can be adapted to most folding type pushchairs of the sliding type, and in particular those of the type shown in FIGS. 1 and 2.
• the stroller comprises safety means to prevent inadvertent unfolding of the stroller when a child is present in the hammock.
• These safety means are designed so that they strongly prevent or limit the sliding of the push arms 8a and 8b along the corresponding legs 2a and 2b, when a child is present in the hammock, on the other hand being unable to not disturb this sliding at all otherwise.
• FIGS. 12, 13A and 13B Such systems can be implemented in several ways. A particular embodiment will now be described in more detail, illustrated by FIGS. 12, 13A and 13B.
• a single set of safety means is presented, associated with the side assembly labeled - a of the stroller.
• a single device of this type is a priori sufficient. However, it is of course possible to fit the two sides of the stroller symmetrically.
• the lower end of the push arm 8a therefore carries a safety element 131.
• the stroller In FIG. 12, the stroller is in the deployed position. In this position, the security element 131 is located in the vicinity of the connecting sleeve 18a (or in contact with it). It can thus play the role of stop.
• the security element 131 comprises 2 parts: a fixed part 1311 which corresponds to the end of the pusher arm; - A part 1312 movable in rotation around the pusher arm 8a.
• the mobile part 1312 is mounted on the push arm 8a, between the sleeve 18a, against which it can abut, and the fixed end part 1311 of which it is integral.
• the rotational movement of the movable part 1312 is limited between two extreme positions, for example using a fixed stud (not shown) mounted on the push arm and circulating in an oblong hole (not shown) made in the mobile part.
• the mobile part 1312 comprises a planar extension 1313 (appearing more clearly in FIGS. 13A and 13B, which presents the mobile part seen from above) extending perpendicular to the axis defined by the pusher arm 8a.
• This extension 1313 presents in particular: an opening 1314 (which could be a simple notch) and in which is inscribed the rod 136a carrying the hammock (via the loop 135a.
• the strap and / or the hammock can be fixed differently, by example directly on the security element 131, without the rod; a stop 1315, intended to come into contact with the stud 132 placed for this purpose on the base 2a, in the safety position (the stud 132a is shown in dotted lines to illustrate the fact that it is at the rear of the base 2a).
• the opening 1314 advantageously allows the sliding of the rod 136a, in order to ensure the guiding of the hammock (during folding, unfolding and modification of the 'tilt of the hammock).
• Return means are provided in the security element 131. These return means are mounted between the fixed part 1311 and the movable part 1312, so as to apply a return force bringing the part 1312 into a position such that the stop 1315 is no longer located opposite the stud 132.
• the restoring force is defined so that: it is sufficient to bring the movable part 1312 back into the release position, in which the stop is no longer facing the stud, despite the weight of the hammock, when it is empty (release position: figure
• These return means comprise for example a helical spring.
• the restoring effect can also be obtained by the use of a suitable elastic material, or any other restoring means.
• the calibration of the return means is carried out so that, for example, any weight greater than 3 kg prevents folding.
• the operation of the safety device is therefore as follows.
• an unlocking is commanded (for example by action on the handlebars 10)
• the base 8a begins to slide inside the sleeve 18a, up to the level of the stud 132.
• the play thus introduced corresponds to the play necessary for the implementation of the locking / unlocking means, which makes it possible to visualize the beginning of the unlocking.
• the restoring force acts in the direction of the arrow 241, to bring the moving part 1312 into the release position, in which the stop 1315 is not is closer to the block 132.
• the sliding of the push arm 8a can then continue, and the folding is completed.
• the device described above can be adapted to other folding strollers. Furthermore, other embodiments can be envisaged for producing the safety means, since the latter can take two positions, the release position and the safety position, depending on the presence or not of a child. in the hammock.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Transportation (AREA)
• Mechanical Engineering (AREA)
• Health & Medical Sciences (AREA)
• Public Health (AREA)
• Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)

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• 1998
  • 1998-12-08 JP JP2000524171A patent/JP2001525291A/ja active Pending
  • 1998-12-08 AU AU14930/99A patent/AU1493099A/en not_active Abandoned
  • 1998-12-08 WO PCT/FR1998/002663 patent/WO1999029555A1/fr not_active Application Discontinuation
  • 1998-12-08 EP EP98958986A patent/EP1037790A1/de not_active Withdrawn

Non-Patent Citations (1)

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