FR2951916A1 - Object carrying bag e.g. provision bag, for transporting heavy load, has foldable platform with pivoting front wheels, fixed rear wheels, lateral pulling handle and two regular handles for lifting bag - Google Patents

Abstract

The bag (1) has a foldable platform (W) with pivoting front wheels (7, 8), fixed rear wheels (9, 10), a lateral pulling handle (6) and two regular handles (2, 3) for lifting the bag. A block unit i.e. groove, is provided for blocking the bag in a foldable position, and an attachment unit i.e. hook, is provided for fixing the bag to the platform. The handles are provided on an upper part of the bag.

Description

The invention relates to the technical sector of shopping bags, or travel bags, that can carry loads of any kind. Shopping bags are also known as shopping bags, shopping bags or advertising bags.

The transport bags currently used for shopping have several qualities: lightness, flexibility, robustness, a very low price and can carry heavy loads. They are generally made of synthetic material, natural or paper, disposable or not; they do not have a frame (rigid structure), they fold easily; they are not suitable when they are used to transport heavy loads over more or less long distances. To transport heavy loads, we move to another category of transport bag, larger, with frame and wheels. These bags are relatively expensive and heavy.

The idea of this innovation is to find an intermediate solution: on the one hand, a bag retaining the characteristics of a shopping bag (light, flexible and cheap) and secondly, can carry heavy loads. The solution adopted is to provide this shopping bag with a light and foldable structure or platform, with wheels. This structure accompanies the natural folding of the bag and can be easily detachable from it, if the need arises. For example, in the case where it is necessary to wash it or to replace it if it is damaged or quite simply during the transport of light load (bag without structure).

For this, the bag has a structure (platform or frame) with wheels, a side pull handle and two usual handles to lift the bag (Fig 1.a, fig.l .b, fig. lc and fig.1, fig.2.c and fig.2.d.). In another configuration, it is equipped with two long handles arranged on the upper part of each face (fig 2.e, fig.2.f and fig.2.g.). The structure can be equipped with several wheels, at least four: two unidirectional rear wheels and two front swivel allowing the bag to go to the right or left. In another embodiment and in order to reinforce the bag, additional wheels may be added (Fig. 8a and Fig. 8b). All the proposed solutions, whether for the structure, the means of traction, the handles ... will have to take into account the cost, the ease of realization and use, in order to remain in a philosophy of the cheap bag and, in some cases, disposable.

The bag is used in different ways: ù raised by the two upper handles with the hands when for example on rough ground or up or down stairs (fig 1.a and 1.b) (fig 2 .b, fig.2.e). ù raised by the two long handles on the shoulder to free the hands (Fig 2.f). tract pulled by the side handle and rolling on its wheels (fig 1.c and fig 1.d) (fig 2.b, fig.2.e). les the front wheels raised from the ground by the front side handle, which allows the bag to overcome obstacles such as small steps or sidewalk (Fig. 1.c). the last case: pulled by another bag in the same row, like the two wagons of a train (Figs 24.a and 24.b).

Before starting to detail the realization of this patent, some precisions are necessary. We use a unique repository for the appointment of all elements of the bag. It is a hierarchical nomination that goes from the grouping of elements, through the elements themselves, to the smallest part of it: capital letters or Roman numerals for a grouping of elements, simple elements by simple numbers and parts of an element by lowercase letters. For example (B.12.a) refers to the hook "a" of the part 12 which is part of the platform "B". The axes are represented by two capital letters (example AA '). The bag has a rigid foldable structure: we will use the term "structure" or the term "platform" and rarely the term "built", however the three represent the same thing. Finally, throughout our description, when we speak of articulation, we do not differentiate between a joint composed of two independent and pivotable elements about an axis and an articulation due to the narrowing of the material to a certain place in the room, so that it provides enough flexibility for the room to bend. Generally, it is along a junction of two rigid parts that this articulation is effective. Moreover, it is the same principle that applies to paper or cardboard. When you crush a cardboard along a ridge, you get a deep groove, which creates two elements articulated around this ridge.

In the accompanying drawings: - Figures 1.a, 1.b, 1.c and 1.d respectively show the different ways of using the bag: climbing stairs, crossing rough terrain, overcoming obstacles and pulling it on flat surfaces. FIGS. 2.a, 2.b, 2.c, 2.d, 2.e, 2.f, and 2.g present other possible configurations of the bag with the different possible uses. - Figures 3.a, 3.b, 3.c and 3.d respectively represent the different phases of folding of the bag. - Figures 4.a, 4.b and 4.c respectively represent the different bending phases of the first embodiment of the structure. - Figures 5.a, 5.b and 5 show a second embodiment of the structure. FIGS. 6.a, 6.b and 6.c show the different phases of a locking mechanism for this second embodiment of the platform. - Figures 7.a and 7.b show other locking mechanisms, one internal and the other external. - Figure 8.a and 8.b represent, on the one hand, the different means of attachment of the platform to the bag, on the other hand, the case where the structure and equipped with several wheels 25 (more than four) . - Figures 9.a, 9.b and 9.c represent respectively the different phases of folding for the third embodiment of the platform. - Figures 10.a, 10.b and 10.c represent respectively the different phases of folding for the fourth embodiment of the platform. Figures 11.a, 11.b and 11.c show the different phases of a locking mechanism for the fourth embodiment of the platform. - Figures 12.a and 12.b respectively represent the different phases of folding wheels for the fifth embodiment of the platform. - Figures 13.a, 13.b and 13.c respectively represent the different phases of folding of the sixth embodiment of the platform. - The figures of 14.a.1 to 14.f.1 represent a summary of the different possible realizations of the platform. - Figures 15.a, 15.b, 15.c and 15.d are the details of a first mechanism of folding and locking wheels. - Figures 16.a, 16.b, 16.c and 16.d are the details of a second mechanism of folding and locking wheels. - Figures 17.a, 17.b, 17.c and 17.d are the details of a third mechanism of folding and locking wheels. - Figures 18.a, 18.b, and 18.d represent the details of the wheel brake. Figures 19.a, 19.b, 19.c, 19.d and 19.e show details of an embodiment of the bag folding system with its pull handle. Figures 20a, 20b, 20c, 20d, 20e and 20f show the details of another embodiment of the bag folding system with its pull handle - Figures 21. a, 21.b, 21.c and 21.d represent a first embodiment of the folding of the two upper handles which makes it possible to transport the bag. - Figures 22.a, 22.b, 22.c, 22.d and 22.e are a second embodiment of the folding of the two upper handles that can carry the bag. - Figures 23.a, 23.b, 23.c, 23.d, 23.e, 23.f, 23.g and 23.i represent the different covers. Figures 24.a, 24.b, 24.c, 24.d, 24.e, and 24.f represent the seventh possible embodiment for folding the platform. - Figures 25.a and 25.b show the ways to tow two bags at the same time. The invention therefore relates to a bag with, on the one hand, a foldable structure 25 supporting several wheels (at least four) including two or more pivoting allowing the bag to go in several directions (right or left), on the other hand, a lateral traction means, consisting of a handle comprising one or two strands and finally on its upper part of the handle to lift.

The description of the patent is organized in three parts: - one concerning the various embodiments of the foldable structure and its wheels. one concerning the various embodiments of the bag traction means. one last concerning the means of attachment of the bag to the platform, the 35 different covers of the bag, the handles for the support of the bag and their folding ...

For the first part concerning the structure, we will present several realizations that correspond to several possible configurations.

Nevertheless, the goal of all these achievements remains the same: a very light platform carrying several wheels (usually four) and at the same time solid enough to withstand heavy loads, an easily foldable platform that follows the natural folding of the bag, a structure easy to make and finally a structure that can easily detach from the bag.

The first realization (fig.4) of this structure is simple, it is composed of two parts: a part composed of six elements forming a rectangle like the wall of a house (A.1, A.2, A.3, A.4, A.5 and A.6) a second part, like a roof of a house with several folds, like those of a fan or an accordion (Fig. 14.e.1, 14.e .2 and 14.e. 3). The simplest forms are the V upside down (A.11 and A.10). The rectangular part is formed of two external lateral elements (Al and A.2) each supporting two wheels: a fixed rear wheel and a pivoting front wheel, and two other articulated V elements, connecting the first two elements (A.3). and A.4) and (A.5 and A.6).

The platform is maintained deployed by its simple weight and that of the transported objects, but also by other elements: grooves and elastics (as in Fig. 7.a and 7b with parts B.12.c, B. 12.d, B.40, B.7.f, B.44 B.12.d and B.12.e or grooves and hooks A.8 and A.9). The splines are used to stabilize the platform in an extended position and the elastics, or hook, to tighten and lock the assembly (see Figure 4 or Figure 7).

The second embodiment is a structure composed of several articulated elements (Figures 5, 6, 7 and 8). In this platform, two parts emerge: a roof as in the first accordion-shaped realization (Fig. 14.e.1, 14.e.2 and 14.e. 3 or Fig. 5), and a part lower part representing the walls composed of twelve elements (from BI to B.12) In this last part, we have two external lateral elements (B.1 and B.2) each supporting two wheels: a fixed rear wheel and a pivoting front wheel . The two elements (B.1 and B.2) which remain parallel whatever their position (folded or extended) are attached by a foldable structure composed of ten other elements forming two letters "H" (B.3 to B. 5 and B.8 to B.12). All elements of this platform are attached by joints. To strengthen the structure, we can add other wheels in the middle (example in Figure 8).

Normally, as for the first embodiment, this structure is maintained deployed during its use by its mere weight and the weight of the objects it carries. However, for more robustness, a locking mechanism is added to maintain the platform in an expanded state. This mechanism can be internal or external. In the case where it is internal, it may be composed of a cover (B.20 and B.21 Fig. 6) with an elastic band (B.22) and two holes (B.20.a and B.20 .b) to accommodate the two tabs (B.12.a and B.7.a) of the two pieces (B.12 and B.7). This allows to block the entire structure and give it great strength. Always in the internal case, it can be realized with two tabs, two hooks and two elastics (B.12.c, B.12.d, B.40 Fig. 7.a). In the case where it is internal (also external), it can be made with two hooks and two elastics (B.7.f, B.44, B.12.f and B.43 Fig. 7.a). The two elastics (B.44 and B.43) are attached to the two hooks from the outside (B.7.f and B.12.f). Although we have not specified it before (even in previous achievements), the upside down V-shaped hat may have edges that protrude outside the platform (see Fig.14.f.1). This allows on the one hand, to reduce the size of the base supporting the wheels, and on the other hand, during folding to take the wheels sandwiched between the two faces in the form of "V".

The third achievement of this structure is almost identical to the second. The only difference is the articulation that allows folding the structure in two (Fig. 9.a, 9.b and 9.c). The two major parts (I and II) are articulated at C.1.a and C.2.a and C.30. they come to flatten against each other when they are folded. This has the effect of reducing by half the total size of the structure (Figure 9). This articulation is accompanied by a locking mechanism that keeps these two large parts deployed. This mechanism is composed of the piece C.31 (fig 9.c) which can slide along the gutter C.4.b to block the longuette C.3.a and at the same time block the two parts (I and II) together. To further reduce bulk, the wheels themselves can be folded, as in Figure 9.35 The fourth embodiment of this structure is composed of several articulated elements (Figures 10 and 11). As for the first two embodiments, two external lateral elements (D.1 and D.5) each support two wheels: a fixed rear wheel (9 or 10) and a front swivel wheel (7 or 8) fold or unfold but always remain parallel. These last two elements (D.1 and D.5) are attached by a foldable structure composed of two overlapping "V" surfaces superimposed (D.2, D.6 and D.3, D.7) and two other elements (D.4 and D.8) connecting in the middle these two "V" reversed. An extension (D.13) can be added to element D.2 to limit the end of stroke when deploying the structure. Although the weight of the transported objects maintains the locked structure in its extended position, the extension also has other means to reinforce the locking: four pivoting elements (D.9, D.10, D.11 and D.12 fig. 11) which attach to either the ends of the two elements (D.1, D.5) or to the element D.4, D.8. They can be housed in four cavities to block the structure in its deployed position.

The fifth embodiment of said structure differs from previous embodiments in that the folding of the wheels is no longer driven by the folding of the structure but completely independent. Platform E (Fig. 12.a and 12.b) consists of a single block, in the form of a box with a bottom (E.5) and four sides (E.1, E.2, E. 3 and E.4). The folding of the wheels can be done in pairs (Figures 10 and 11) or on the contrary, the folding of each wheel is independent of the others (Figures 15 and 16).

In the last case where the folding of each wheel is independent of the others, each wheel can have its own arm, a folding system and a locking system. We present three possible realizations for this folding system. The first folding (FIG 13) consists of an arm carrying: on one side, the rear wheels (7, 8) or the front wheels (9, 10); on the other side, said arm is extended by an axis (F.11.b or F.12.b) and terminated by a push button (F.15 or F.16). The two springs (F.31, F.33) have a double function: on the one hand, they keep the wheel arms locked by the hooks (F.27, F.28); on the other hand, they are used as return springs for the assembly (wheel and arm) to return to folded positions near the platform. The second folding (Fig. 15.a, 15.b, 15.c and 15.d) is comparable to the first, the only difference being in the hook (1.45, 1.48) which holds the arms and their wheels especially to the springs (1.47, 1.42). The other two springs (1.44, 1.50) are return springs that allow the assembly (wheel and arm) to return to a folded position near the platform. The third folding (Fig. 16.a, 16.b, 16.c and 16.d) uses the same principle, with a difference in the blocking system. In this embodiment, the arms and their wheels are held by one of the hooks (H.2 H.9, Fig. 16). In the case where the wheels fold two by two (Fig. 12.a and Fig. 12.b), two rods (E.12 and E.13) each supporting two side wheels, a front (7 or 8) and a rear (10 or 9) on each end and pivotable in two positions: a folded position and an extended position. A locking mechanism is added to hold the rod in the extended position. It consists of two plates (E.18 and E.19) pivoting on the axes AA 'and BB'. Arms and wheels are held in the folded position thanks to the two magnets (E.8 and E.9) attached to the walls of the room (E.5).

The sixth realization (Fig 13.a.13b and 13.c) takes the same principle as that of the fifth structure, ie. a folding of the wheels independent of the structure that supports them, with in addition a folding of the platform around the axis AA 'to obtain an even more compact structure. The locking of the platform in the deployed position is by a pin mechanism. These last are inserted in the two holes (F 17.a and F 18.a) and in the opposite case, the two buttons (F.26 and F.27) are used to unlock them. The wheels also have a locking mechanism slightly different from the others. Their locking is always done with a hook (F.27, F.28) and the unlocking is done with the side buttons (F.15 and F.16). It is enough to pull on these so that the system (arms and wheels) returns to its folded position, thanks in particular to the return spring (F.23 and F.29).

The seventh embodiment (Fig. 24.a, 24.b, 24.c, 24.d, 24.e, and 13.f) is another possible embodiment of said platform, completely different from the previous ones. The principle of this platform is simple: it is a first set of parallel rods (k.20, k.22, k.2 ...) intersecting with a second set of parallel rods (k.21, k. 23, k.25 ...). The two sets are fixed by joints at their stems: in their middle (k.40, k.41, k.42, k.43 ...) and at their ends (k.30, k.31, k.32, k.33 ...), so that the assembly forms a fan that can expand, or otherwise bend, to collapse completely into a position where the rods are aligned against each other. The axis of each joint can be extended by a swivel wheel (k.1, k.2, k.3 ...). The number of wheels depends on the desired configuration, but also the size or weight of the object to be transported. The platform is equipped on the one hand with a blocking mechanism (k.50, k.51, k.52, Fig. 24.d) to maintain the platform in a particular deployment; on the other hand, hooks (k.55, k.56, Fig. 24.c) at the ends of the rods to be able to attach a bag (Fig. 24.0 or any object, such as a cardboard for example).

We will now begin to describe the second major part of the patent, which relates to the traction means of the bag. Several configurations are possible and we will describe each of them. The first (fig.2.e, fig.2.f and fig.2.g) consists of two additional handles (4 and 5) outside the two usual handles for transporting the bag. These are longer and more flexible than the usual handles, they serve to pull the bag, but also to carry the bag on the shoulders. The second (fig.la, fig.lb, fig.lc and fig.ld) consists of a single pull handle with two strands, it is located on the upper part of one of the two side surfaces of the bag . In this case, the handle can be deployed at the height of the user to pull the bag and, to avoid the inconvenience of bringing the handle up to the height of the user after each release, a locking mechanism is added to hold the handle in this position. This locking mechanism can be achieved with a click mechanism: a bump with spring that is placed in several fonts (fig.23.h), a cast iron for the deployed position, others for the folded positions of the handle. In this last (folded) position, the handle can be placed on the upper part of the bag or on its lateral surface (internal or external) (Fig.19). This mechanism can also be realized by a limit switch (fig.19.e and 19.f, fig.20.e, 20.f and fig.21.d) where the upper edge of the lateral surface of the bag can constitute a limit switch to the rotation of the arm (fig.21.d), or in another configuration by the bump located on the strap of the handle which is locked on the bump of the support of the handle15 (fig. 19.e and 19.f) (fig.20.e and 20.f).

The third embodiment of this pulling handle can be done with a handle single strand (see fig.2.c). In this case also, it is located at the top and middle, on one of the side surfaces of the bag. Similarly, for the previous embodiment, it has a mechanism that keeps it locked, either at the height of the user, or folded on one of the side surfaces of the bag. This mechanism can be realized by a hook system (fig.2.c.1): two pairs of holes (101.a and 101.b) located on the base (101) and on which two bumps (100.a and 100.b) semi-spherical, located on the rod (100) of the handle, are housed. The locking mechanism can also be realized by end-of-stroke, as in the second embodiment (fig.20.e).

In the fourth embodiment (Fig.19 and 20), the pull handle is provided with two strands with the same mechanism of deployment and locking than those of the second embodiment. The only difference is on the base of the handle. On the second embodiment, the base of the handle is permanently attached to one of the side surfaces of the bag, while in this embodiment, it can rotate 90 degrees to come flat on one of two sides: front or side lateral. It gets on the front when folding the bag and on the side when it is used to pull the bag. In these two positions, the handle is maintained plated by a fastening means such as self-gripping tape type Velcro, elastic or snap (33, 34 and 35). The rotation of 90 degrees is around the axis AA 'arranged at the top on one of the lateral corners of the bag. When this handle is held on the side face, it can fold to come to store near the bag, or instead deploy to pull the bag. In the latter case, it is maintained deployed at the height of the user by a locking mechanism like that of the second embodiment.

A fifth embodiment (fig.2.a and 2.b) for this handle is to use one of the upper handles for carrying the bag as a pull handle (108 and 109, fig.2.a and 2.b) .

The sixth and last embodiment (FIG. 2.d) is made by a simple pulling wire tied down in the structure. So far, the handle consists of a single block. But in some situations, this configuration hinders folding. The handle itself may consist of two parts that can be hinged or not (fig.23.e and 23.f, fig.23.g and 23.h). When hinged (141.a and 140.a), the handle comprises two strands (140 and 141) that can articulate in the middle, about an axis (142), with a locking mechanism (141. a and 140.a). In the case where they are not articulated, on the ends of the two ends (81 and 82) of the handle, there is the tube (80) which can fit into the end of the tube (82). The elastic (85) serves to hold the two parts of the handle together.

Similarly, the base that serves as a support for the handle can in some configurations bend (fig.23.g). The locking mechanism (89.b) keeps both strands (88 and 89) locked in the extended position. This locking mechanism consists of a hook (89.b) which is embedded in the groove (88.a) to maintain the two straight strands.

We will now describe the third and last part of the patent, which addresses the mechanism of attachment of the bag with the platform, the upper handles and their folding, the lid of the bag, the traction of two bags at the same time and finally the braking of wheels.

Let's start with the first element that concerns the folding of the upper handles of the bag. Remember that these two handles are used to lift the bag for transport; each has an upper handle and two side straps. They are arranged on the top of the outer or inner part of the two large main faces of the bag. They can be fixed or retractable. For the latter case, we will describe two achievements.

The first (fig.22) is very simple: for each handle, there are two ducts (66.a and 66.b) (67.a and 67.b) located on either side of the two attachment surfaces ; the two rods (shoulder straps) of the handles (60 and 61) slide along the ducts to go into two positions: one deployed and a second folded, stored in the bag. The handle is held in these two positions by two pairs of protuberances used as end-of-stroke and blocking (60.a and 60.b) (Fig.22.d and 22.e).

The second embodiment (fig.21) of this mechanism of folding handles is by joints. The handles have a hinge that allows the handles to be returned to two positions: extended or folded (fig.21.a and 21.b).

A fastening mechanism consisting of a magnet, a snap, a hook or Velcro type self-gripping tape (56 and 57) as in Fig. 21, is added to hold the handle in these two positions.

The second element of this third part concerns the fasteners that bind the bag to its platform (fig.8.a and 8.b). Indeed, in the embodiments where the bag is not permanently attached to the platform, the bag has fasteners. These fasteners (Velcro type, elastic and snap) must all facilitate, the installation of the bag on its platform, as its withdrawal. They can be four in number at most, they are arranged down on the four cardinal corners of the bag (20, 21, 22, 23, 108 and 110).

The third element of this third part concerns the wheel brakes (fig.18.a, 18.b and 18.c). Each wheel has its own brake allowing the user to block the bag, for example when on a slope. For the front swivel wheels, with the same lever (P.5), one can both block the wheel so that it can not walk, but also to lock the wheel on its pivot axis. The lever (P.5) will block the axis (P.3) at the wheel (P.3.b) and at the same time, thanks to the two extensions (P.5.c) with which it is equipped, will brake the wheel.

The fourth element of this third part concerns the lid of the bag (fig.23.a, 23.b, 23.c and 23.d). In some embodiments, this bag may have a cover to protect the transported objects from bad weather or theft. It closes with Velcro type self-gripping tape, zipper or snap button.

The fifth and final element of this third part concerns the possibility of attaching two bags like the two cars of a train (Fig. 24.a and 24.b). The user tows a single bag and the second is driven by a rod (90) which connects the two bags. This rod contains at its end a ring (90.b) which is inserted into the hook (B.70) of the other bag. The shape of this hook (B.70) is a little bulged in the middle, which allows the ring to hang without detaching.5

Claims (1)

CLAIMS1) - Carrying bag of any object comprising two handles on its upper part characterized by a foldable platform comprising several wheels, some of which are pivoting (allowing it to go to the right or left), and one or two handles lateral for its traction. 2) - Object carrying bag according to claim 1, characterized by a foldable platform consisting of several articulated elements and which comprises: - an upper part supporting the bottom of the bag in the form of accordion whose simplest form is that of an inverted W or V (A.10, A.11 and A.12), - two external lateral elements each supporting two wheels: a fixed rear wheel and a pivoting front wheel (A.1, A .2), - four articulated elements (A.1, A.2, A.3 and A.4), connecting the two lateral elements (A.1, A.2) and ensuring on the one hand, the folding of the platform, and secondly, the robustness for the support of heavy loads, - locking means in the deployed position: grooves, hooks or elastics. - Fastening means: hooks, holes or snaps to attach the bag to the platform. 3) - Object carrying bag according to claim 1, characterized by a foldable platform consisting of several articulated elements and which comprises: - an upper part supporting the bottom of the bag in the form of accordion, the simplest form is that of an inverted W or V (B.13, B.12), 30 - two external lateral elements each supporting at least two wheels: a fixed rear wheel and a pivoting front wheel, - ten elements (of B.3 to B.12) articulated in the form of two H, connecting these two lateral elements, and which ensure, on the one hand the folding of the platform, on the other hand the robustness for the support of heavy loads - Locking means in the deployed position: grooves, hook or elastics. - Fastening means: hooks, holes or snaps to attach the bag to the platform. 4) - Bag for transporting objects, according to claim 1, characterized by a foldable platform consisting of two symmetrical articulated parts (I and II) and a locking means (C.4.b, C.31, c .4.a), so that each articulated part itself comprises: - an upper part supporting half of the bottom of the accordion-shaped bag, the simplest form of which is that of a W or a V reversed (C.14, C.16) or (C.15, C.17), - two external lateral elements each supporting at least one wheel (C.1 C.3 or C.2, C.4) , one with swiveling front wheels and the other with non-swiveling rear wheels. five H-shaped articulated elements connecting these two lateral elements and giving each part of the platform its robustness, enabling it at the same time to fold or unfold, locking means in the deployed position: grooves, hooks or elastics. Attachment means: hooks, holes or snaps to attach the bag to the platform. 5) - Object carrying bag, according to claim 1, characterized by a foldable platform composed of several articulated elements and which comprises: - two external lateral elements each supporting two wheels: a fixed rear wheel and a front wheel pivoting (D .1, D.5). - four articulated elements (D.2, D.3, D.6 and D.7) in the form of two inverted "V" surfaces, superimposed and attached at their center by two other elements (D.4 and D.8 ), so as to provide the platform with both robustness to withstand heavy loads and flexibility to facilitate folding and deployment of the bag, - a locking extension (D.13) to give more robustness when deploying the platform and allow blocking in this position. - four pivoting elements (D.9, D.10, D.11 and D.12) which attach to either the ends of the two internal elements (D.4 and D.8) or to the ends of the external elements (D .1, D.5), so that said elements are housed in the four cavities to block the structure in its deployed position. attachment means: hooks or holes for fixing the bag to the platform. 6) - Bag for transporting objects, according to claim 1, characterized by a platform comprising: - a rectangular box with four lateral sides (E.1, E.2, E.3 and E.4), a bottom for supporting the bottom of the bag (E.5), - two folding rods (E.12 and E.13) and independent each carrying on their ends: a fixed rear wheel and a swiveling front wheel, - a locking means consisting of two additional pivoting plates (E.18 and E.19) which deploy to lock the wheel arms in the extended position, - two magnets (E.8 and E.9) to hold arms and wheels in a position folded. - Fastening means: hooks or holes to secure the bag to the platform. platform consisting of a first set of parallel rods (k.20, k.22, k.24 ...) intersecting with a second set of parallel rods (k.21, k.23, k.25, ... ) where the two sets are fixed by joints in the middle (k.40, k.41, 7) - Object carrying bag, according to claim 1, characterized by a 35k.42, k.43 ...) and at the ends (k.30, k.31, k.32, k.33 .. .) of their rods, so that the whole forms a fan that can unfold, or on the contrary fold to reduce completely to a position where the rods are aligned against each other. The said hinge pins may be extended by pivoting wheels (k.1, k.2, k.3 ...) depending on the desired configuration, the size or the weight of the objects to be transported; the said platform is equipped on the one hand with a locking mechanism (k.50, k.51, k.52, ..) to maintain the platform in a particular deployment, and on the other hand, hooks ( k.55, k.56, ..) at the ends of the rods to be able to attach a bag. 8) - Object carrying bag according to claim 1, characterized by a platform consisting of two symmetrical parts I and II hinged, and a locking means (F.24, F.25, F.26 and F .27), so that each of the two parts (I or II) comprises: - a rectangular box with four lateral sides (F.1, F.2, F.3 and F.4) or (F.5, F .6, F.7 and F.8) and a bottom (F.9 or F.11) for supporting the bottom of the bag (E.5), - four folding arms (F.11, F.12), (1.40, F.49), (H.6) and (J.3) each carrying a wheel (two foldable and two fixed wheels) with a locking means consisting of foldable hooks (F.11, F.12) , (1.45, 1.48), (H.2, H.3, H.9) and (J.5, J.14) and springs (F.31, F.33), (1.42, 1.44, 1.49, 1.50), (H.5, H.12). attachment means: hooks or holes for fixing the bag to the platform. 9) - Object carrying bag according to one of the preceding claims, characterized by two additional handles (4 and 5) outside the two usual handles for the support of the bag; the latter are longer and more flexible than the usual handles, they serve to pull the bag, but also to carry the bag on the shoulders. 10) - Object carrying bag according to one of the preceding claims, characterized by a handle fixed on one of the side faces of the bag, which can be folded to press against the bag, or on the contrary, to deploy at the level of the user, and which may comprise: a handle which can consist of a single block (6) or fold in its middle by an axis (141, 142) or by an elastic (81, 82, 85), - two side straps attached on one side to the base, and on the other, to the handle, - a base that folds in the middle and a hook to hold the two parts of the right base (88, 89), a locking means in both positions: deployed or folded (87, 86, 120, 121). 11) - Object carrying bag, according to one of the preceding claims, characterized by a side handle adapted to rotate by 90 degrees, either to be pressed on the front of the bag during folding, or to press on the lateral side for pulling the bag, and which comprises: - a handle (20, 30), - two lateral straps (31, 32) attached on one side to the base by articulations and on the other to the handle, - a base equipped with a hinge to rotate the entire handle and shoulder straps (21,33), - a hinge between the base and the shoulder straps (24,160) allowing the handle to be held at the height of the user, either to bend inside the bag. - Fastening means: self-gripping Velcro-type strip (23, 24, 34, 35) elastic or snap button, allowing the handle to remain pressed on one of the two faces: front or side. 12) - Object carrying bag, according to one of the preceding claims, characterized by a handle attached to one of the side faces of the bag, which can bend to come to press against the bag or otherwise unfold to height of the user, and which comprises: - a single handle (100) to a single strand, 5- a fastening means (101, 102) for holding the handle at the height of the user for towing, or otherwise allow him to bend himself to come on one of the side faces of the bag. 13) - Bag for transporting objects, according to one of the preceding claims, characterized by two long handles (106,107) which, when used together, allow the bag to be transported, and when used separately, allow to pull the bag. 10 15 14) - Bag for transporting objects, according to one of the preceding claims, characterized by two handles located on the upper part of the bag which can slide (60, 61) in conduits (66.a, 66.b) located on the sides of the bag, be inside the bag, or on the contrary unfold, so that a user can use them to lift the bag. 15) - Object carrying bag according to one of the preceding claims, characterized by two handles (50, 51) on the upper part, which can bend around an axis to come against the bag or on the contrary deploy so that a user can use them, also characterized by a fastening mechanism (56,57) to hold the handles extended. 16) - Bag for transporting objects, according to one of the preceding claims, characterized by wheel brakes, with a lever (P.5.a), to immobilize the wheels in rotation but also to block the pivoting of the arm supporting the wheels, via extensions (P.5.c) which block the tires and the groove (P.5.d), which fits itself in the wheel (P.3 .b) of the axis. 17) - Bag for transporting objects, according to one of the preceding claims, characterized by a mechanism for attaching two bags so that one drives the other to the hook means (170.a, 170.b ) and rings (170.a, 170.b).