WO2020128308A1

WO2020128308A1 - Container equipped with a system for retracting/deploying a tarpaulin, the system per se and the method for retracting/deploying a tarpaulin on a container

Info

Publication number: WO2020128308A1
Application number: PCT/FR2019/053127
Authority: WO
Inventors: Dimitri Durieux
Original assignee: H2Dx
Priority date: 2018-12-19
Filing date: 2019-12-17
Publication date: 2020-06-25
Also published as: FR3090597B1; FR3090597A1

Abstract

The invention concerns a parallelepiped container (1), the upper face (6) of which is open and which is equipped with a system (8) for retracting/deploying a tarpaulin (7) over this opening (6). The aim of the invention is that this system be easy to handle, robust, adaptable to various containers and easy to assemble and disassemble. According to the invention, the system (8) comprises hoops (9, 9e, 9s) supporting the tarpaulin (7). Each hoop (9, 9e, 9s) is connected at each of its ends to a carriage (10, 10e, 10s) that can move in translation in a lateral guide rail. At least one of the end hoops (9) is a drive hoop (9e), in the vicinity of which a handling pole (17) can be or is connected for the manual retracting/deploying of the tarpaulin (7). The movable carriages (10e) of the drive hoop (9e) are different from the other movable carriages and the other hoops which are followers. Each movable drive carriage (10e) comprises a frame (14) on which rollers (15) are mounted, which cooperate with one of the guide rails (11). At least one of the removable drive carriages (10e) is equipped with an immobilisation lock, in the deployed position of the tarpaulin on the opening (6) of the container (1). The movable carriages (10) are linked to one another, on each side of the container, by links (16) each comprising two articulated arms (161, 162).

Description

WO 2020/128308 Description PCT / FR2019 / 053127

Title: CONTAINER EQUIPPED WITH A

REPEAT / DEPOSIT OF A SHEET, EE SYSTEM IN ITSELF AND EE METHOD OF REPEAT / DEPOSIT OF A SHEET ON A

CONTAINER

Technical area

The field of the invention is that of storage containers and / or transport of materials, goods or miscellaneous waste, one of the faces, preferably the upper face, is open and may be closed by a folding / deployable tarpaulin.

The invention also relates to a system for folding / deploying a tarpaulin on such containers.

In addition, the invention relates to a method of folding / deploying a tarpaulin on such containers.

Prior art

[0002] the containers in question here are, for example, metal containers of the skips, semi-skips, (semi) trailers, ship holds, railway wagons, etc. These containers allow storage and / or the transport of various contents, in particular of waste.

These containers have, for example, a generally parallelepiped shape and have an open face, preferably their upper face. The latter can be closed by a protective cover, or even by a net.

The folding back / deployment of this tarpaulin (or of this net), which can in particular be a folding / unfolding, is made possible by a suitable system, such as a set of poles which support the tarpaulin and which can slide at by means of rollers or roller carriages on longitudinal guide rails arranged in the upper part of the side walls of the container. The folding / unfolding of the tarpaulin can be carried out manually by an operator, either directly using an operating device, e.g. pole, hook, strap, ... The operation can be motorized.

For obvious safety reasons, this maneuver must be carried out by the operator from the ground.

For the sake of efficiency and economy, it is preferable that this manipulation of redeployment / deployment of the tarpaulin is carried out by a single operator.

The known tarpaulin deployment / deployment systems either do not respond to WO 2020/128308 link charges, or remain perfectible. PCT / FR2019 / 053127

Technical problem - Objectives of the invention

In this context, the present invention aims to meet at least one of the objectives set out below.

One of the essential objectives of the present invention is to provide a polyhedral container - preferably parallelepipedic - at least one of the faces, preferably the upper face, is open and which is equipped with a system of folding back / deploying a tarpaulin on this open face, this system being easy to handle, when opening and closing, by a single operator, ideally located at the foot of the container, and better still on one side of the container; that is to say that this system is little or not subject to blockages during the folding / deployment by sliding of the sheet.

One of the essential objectives of the present invention is to provide a polyhedral container - preferably parallelepipedic - at least one of the faces, preferably the upper face, is open and which is equipped with a system of folding back / deploying a tarpaulin on this open face, this system being simple and secure manual manipulation for the operator.

One of the essential objectives of the present invention is to provide a polyhedral container - preferably parallelepipedic - at least one of the faces, preferably the upper face, is open and which is equipped with a system of redeployment / deployment of a tarpaulin on this open face, this system ensuring easy and effective locking / unlocking in the open or closed position of the tarpaulin.

One of the essential objectives of the present invention is to provide a polyhedral container - preferably parallelepipedic - at least one of the faces, preferably the upper face, is open and which is equipped with a system of folding back / deploying a tarpaulin on this open face, this system being robust and impact resistant.

One of the essential objectives of the present invention is to provide a polyhedral container - preferably parallelepipedic - of which at least one of the faces, preferably the upper face, is open and which is equipped with a system of folding back / deploying a tarpaulin on this open face, this system being operational even in the event of deformation of the container. WO 2020/128308 One of the essential objectives of the present invcPCT / FR201 / 053127iir is a polyhedral container - preferably parallelepipedic - of which at least one of the faces, preferably the upper face, is open and which is equipped with a system for folding / deploying a tarpaulin on this open face, this system being adaptable to containers of all sizes.

One of the essential objectives of the present invention is to provide a polyhedral container - preferably parallelepipedal - at least one of the faces, preferably the upper face, is open and which is equipped with a system of folding back / deploying a tarpaulin on this open face, this system being easy to assemble.

One of the essential objectives of the present invention is to provide a polyhedral container - preferably parallelepipedal - at least one of the faces, preferably the upper face, is open and which is equipped with a system of folding back / deploying a tarpaulin on this open face, this system having a reasonable cost price.

One of the essential objectives of the present invention is to provide a system for redeploying / deploying a tarpaulin on one of the open faces - preferably the upper face - of a polyhedral container - preferably parallelepipedic - , said system satisfying all or part of the objectives mentioned above.

One of the essential objectives of the present invention is to provide a method of redeployment / deployment of a tarpaulin on one of the open faces - preferably the upper face - of a polyhedral container - preferably parallelepipedic - , said process satisfying all or part of the objectives mentioned above.

Statement of the invention

These objectives, among others, are achieved by the present invention which relates, firstly, to a polyhedral container - preferably a parallelepiped:

- at least one of the faces of which, preferably the upper face, is open,

- which is fitted with a cover folding / deployment system on this open face;

- also comprising 2 side walls and a bottom;

this tarpaulin folding / deploying system having the following characteristics:

- it includes arches supporting the tarpaulin, WO 2020/128308 that the arch is connected to each of its ends PCT / FR2019 / 053127 le in translation:

. in a guide rail disposed along a side wall of the container;

. between a tarpaulin deployment position and a tarpaulin folding position;

- At least one of the end hoops is a driving hoop, in the vicinity of which can be or is connected at least one element for maneuvering the hoops in translation, said element allowing the manual folding / unfolding of the tarpaulin;

characterized in that:

• the mobile carriages of the driving hoop, that is to say the mobile driving carriages, are different from the mobile carriages of the other hoops, that is to say respectively the following mobile trolleys and the following hoops;

• each movable carriage of the driving hoop comprises a frame on which are mounted rollers which cooperate with one of the guide rails;

• at least one of the mobile carriages of the driving arch is equipped with at least one latch allowing the mobile car to be immobilized at at least one of the end regions of the guide rail, in the deployment position of the tarpaulin on the opening of the container.

It is to the credit of the inventors for having designed and produced specific mobile carriages for the driving roll bar (or for the driving roll bars in the event that the system includes one at each end) and for having associated locking means with these mobile coach trolleys. In addition, the consistency of the mobile trolleys / hoop / cover is ensured by articulated links. These methods significantly improve the opening / closing or folding / deployment maneuvers, so that they can be performed by a single operator at the foot of the container and on one side of this container, and at a distance from the sheet. In addition, in the case where the container is a tipper or a truck trailer docked for loading / unloading, so that the upper opening of the container is close to the surface of the quay, the operator can perform, from the quay, the manual deployment / deployment maneuvers.

This re-deployment / deployment system therefore allows simple and secure manual use.

According to an advantageous embodiment of the invention, the unlocking, and possibly the locking, can also be carried out remotely by an operator using an instrument such as a pole, a hook, or even a strap or WO 2020/128308 orde. PCT / FR2019 / 053127

The system is also robust and impact resistant. In the event of a deformation of the container and therefore of its opening, the folding / deployment system has a tolerance allowing it to operate, when the deformation does not go beyond normal constraints.

Another advantage of the system fitted to the container according to the invention is its adaptability to different container dimensions, as well as its ease of assembly.

According to another aspect, the invention relates to a system for folding / deploying a tarpaulin on at least one open face - preferably the upper face - of a polyhedral container - preferably parallelepipedic - further comprising 2 side walls and a background; this tarpaulin folding / deploying system having the following characteristics:

- it includes arches supporting the tarpaulin,

- each hoop is connected at each of its ends to a carriage movable in translation:

. in a guide rail disposed along a side wall of the container;

. between a tarpaulin deployment position and a tarpaulin folding position;

characterized in that:

• the mobile carriages of the driving hoop are different from the mobile carriages of the other hoops;

• each mobile carriage of the driving hoop comprises a frame integral with rolling rollers which cooperate with one of the guide rails;

• at least one of the mobile carriages of the driving arch is equipped with at least one latch allowing the mobile car to be immobilized in at least one of the end regions of the guide rail, in the deployment position the tarpaulin on the opening of the container;

• the mobile carriages are linked to each other, on each side of the container, by links each comprising 2 articulated arms capable of pivoting in the direction of one another during folding back and in opposite directions during deployment; assembly constituted by the drive arch and its opposite mobile carriages, has a mechanical rigidity such that this assembly can be moved along the rails of WO 2020/128308 ge by driving the tarpaulin of the other arches, by tractiPCT / FR2019 / 053127i single operator, on one side of the container.

According to another aspect, the invention relates to a method of folding back / deploying a tarpaulin on at least one open face - preferably the upper face - of a polyhedral container - preferably parallelepipedic - characterized in that 'It essentially consists in maneuvering manually and on one side of the container, the container folding / deployment system as referred to above.

The characteristics set out in the following paragraphs can, optionally, be implemented. They can be implemented independently of each other or in combination with each other:

According to a preferred embodiment of the container, the assembly constituted by the drive arch and its opposite driving movable carriages, has a mechanical rigidity such that this assembly can be moved along the guide rails by driving the tarpaulin and the other mobile follower carriages and the other follower hoops, by manual traction by a single operator, on one side of the container.

To optimize the folding / deployment maneuver: the frame of each mobile coach carriage:

- comprises at least two rectangular walls, namely an outer wall substantially parallel to the plane of the side wall of the container and an upper wall perpendicular to the outer wall, this frame preferably comprising a perpendicular inner wall secured, preferably by its end portions of the ends of two roll bars;

- has the following dimensional characteristics:

4 <1 _B / L _B <20; preferably 6 <1 _B / L _B <18; and more preferably still 8 <1 _B / L _B <15;

with L _B corresponds to the length of the frame and 1 _B corresponds to the width of the container.

According to a remarkable embodiment of the invention, the lock can be operated both from the space located above the container and from the space located below the open upper face, this lock preferably comprising the at least one rod and at least one spring tending to actuate the rod in translation from the frame towards the guide rail, so as to allow the free end of the rod close to the rail to penetrate into a blocking opening provided on the rail guide, and thereby immobilizing the carriage relative to the rail. WO 2020/128308 Advantageously, in this lock, the PCT / FR2019 / 053127 end ec at the free end is an end for controlling the translation of this rod, against the elastic return exerted by the spring and l the free end is provided with a ball mounted on a spring and intended to rest and to roll on the corresponding face of the guide rail, when the free end of the rod is released from the blocking lumen.

To facilitate the movement of the carriages, it is preferable that each movable coach carriage comprises rotary rollers with an axis perpendicular to the side wall of the container and rotary guide rollers with an axis parallel to the latter.

It appeared interesting, in accordance with the invention, in particular to increase the longevity of the folding / deployment system, that each guide rail is mounted parallel and at a distance D from the longitudinal upper edge of the side wall of the container , D preferably representing from 0 to 10%, more precisely either from 10 ^{4 to} at least 2%, or from 2 to 8% of the height of the container, that is to say of the width of the side wall of the container .

In a preferred embodiment of the container according to the invention, that at least one of the mobile carriages of a set of mobile carriages / hoop (x), preferably of the set of mobile carriages coaches / hoops coaches, the two opposite movable carriages of an assembly, is (are) provided (s) with a connection element with a member for maneuvering the translation of the mobile carriages for the folding-deployment of the tarpaulin.

Advantageously, the invention thus relates to an assembly comprising a container according to the invention and at least one operating member for the folding / deployment of the sheet.

Prefer an embodiment in which the movable carriages are linked to each other, on each side of the container, by links each comprising 2 articulated arms.

Preferably, the links between the mobile carriages comprise, in the vicinity of their articulation, a support piece on the upper edge of the side wall of the container, in the deployed position of the sheet, this support piece advantageously being a rolling part on this upper edge, this bearing part being more preferably associated with at least one lateral guide stop intended to cooperate with the lateral face of the guide rail.

Definitions.

Throughout this presentation, any singular means either a singular or WO 2020/128308 jriel. PCT / FR2019 / 053127

The definitions given below by way of example may be used in the interpretation of this presentation:

"tarpaulin": designates a tarpaulin or any other equivalent protective means of the net type, intended to be placed on the opening of a container.

"container": means any container such as tipper, semi-tipper, (semi) trailer, ship's hold, railway wagon ..., intended for the storage and / or transport of various contents, including in particular waste .

"roll bar": designates an element of the deployment / deployment system according to the invention. This element is formed by a cross member, preferably - but not necessarily - of curved shape towards the outside of the container, supporting the tarpaulin:

[0029]

Brief description of the drawings

Other characteristics, details and advantages of the invention will appear on reading the detailed description below of embodiments of the container and of the system according to the invention, with reference to the appended drawings, in which:

Fig. l

[Fig. 1] shows a perspective view of a container according to an embodiment of the invention, in the deployed position of the sheet.

Fig. 2

[Fig. 2] shows a perspective view of a container according to an embodiment of the invention, in the folded position of the sheet.

Fig. 3

[Fig. 3] shows a perspective view of detail of FIG. 1, without the cover, showing one of the mobile carriages of the driving hoop, in the unlocked position of the mobile car of a driving hoop.

Fig. 4

[Fig. 4] is a detailed view of FIG. 3.

Fig. 5

[Fig. 5] is a detail view of FIG. 4 in the locked position of the mobile carriage of a driving hoop.

Fig. 6 WO 2020/128308 [Fig. 6] is a detailed view of the lock and dcPCT / FR201 / 053127; at ion shown in FIGS. 3,4 and 5.

Fig. 7

[Fig. 7] is a detailed view of the lock of FIG. 6.

Fig. 7A

[Fig. 7A] is a detailed view of the bolt of the lock of FIG. 6

Fig. 8

[Fig. 8] is a partial cross-sectional view along line VIII-

VIII of figure 4.

Fig. 8A

[Fig. 8A] is an isolated perspective view of a set of rollers of a movable carriage of the driving arch, this set of rollers possibly being that of FIG. 8.

Fig. 9

[Fig. 9] is a perspective view in the opposite direction of the container of Figure 1, without the cover.

Fig. 10

[Fig. 10] is a partial view of the container of FIG. 9 focusing on the driving hoop.

Fig. 11

[Fig. 11] and another detail view of the container in FIG. 9 focusing on one of the mobile carriages of the driving arch and on part of a link between this mobile carriage and the associated mobile carriage.

Fig. 11A

[Fig. 11 A] is an isolated perspective view of the link between the movable carriages in detail, shown in FIG. 11.

Fig. 11B

[Fig. 11 B] is a detailed view of the latch and of its fixing plate shown in FIGS. 3,4 and 5.

Fig. 12

[Fig. 12] is a detailed view of the lock and of its fixing plate shown in FIGS. 3,4 and 5.

detailed description

Described below, by way of non-limiting example, a preferred embodiment of a container according to the invention provided with a deployment / deployment system WO 2020/128308 Ae. PCT / FR2019 / 053127

As shown in Figures 1, 2 and 9, the container 1 of generally rectangular parallelepiped shape consists of two side walls 2, two transverse walls 3, 4 and a bottom 5. These 4 walls 2, 3, 4 and this bottom 5 comprises an open upper face or opening 6, capable of being covered by a tarpaulin 7 of protection. In this example, the container 1 is a metal bucket usable for the storage and transport of waste or various goods such as cereals

In the present description, the spatial reference system for the terms "interior" "exterior" "upper" "lower" is container 1.

This cover 7 can be folded back and deployed over the opening 6, using a folding / deployment system 8 comprising a set of transverse arches 9 supporting the cover 7 is capable of being moved in translation, according to the longitudinal direction of the container 1. To do this, the arches 9 are provided at their ends with carriages 10 movable in translation in longitudinal rails 11, substantially parallel, each of which is disposed in the vicinity of the upper longitudinal edge 12 of each side wall 2.

As shown in particular in FIGS. 1, 9 and 10, the set of hoops 9 is composed of a driving hoop 9e and a series of follower hoops 9s.

In the deployed and closed position of the cover 7 on the opening 6, the drive arch 9e is located near the upper edge 13 of one (3) of the transverse walls 3,4. The follower arches 9s are distributed throughout the opening 6, preferably at regular intervals.

The driving hoop 9e is provided at each of its ends with a mobile driving carriage 10e and each follower hoop 9s is secured at each of its ends to a mobile following carriage 10s. The movable carriages 10e and 10s all consist of a frame 14 on which are mounted rollers 15, intended to cooperate with the guide rails 11.

According to the invention, the drive bar 9e and its movable coach carriages 10e (coach assembly) have functional and structural differences with the follower bars and their mobile follower carriages 10s (follower assemblies). The trainer assembly is designed so that it can be used for deployment / deployment maneuvers. This functional difference imposes structural particularities, namely:

- The frames 14 fitted with rollers 15 of the mobile coach carriages 10e are longer than their counterparts in the follower assemblies; WO 2020/128308 each driving carriage 10e comprises several jePCT / FR2019 / 0531275, preferably two sets 18, against a single set 18 of rollers for each following carriage 10s;

- And / or the coach assembly 9e / 10e comprises either several coach hoops 9e, preferably two, integral with the terminal longitudinal regions of the two frames 14 of the mobile coach carriages 10th, or a single coach hoop 9e whose width represents at least 50% of the length of the frame 14 of each movable driving carriage 10 ^e .

Another specific feature of the 9th / 10th drive assembly is to be equipped with locking means 20 allowing the immobilization of this assembly, at at least one of the end regions of the guide rail 11 of the container 1, of preferably in the deployment position of the sheet 7 on the opening 6 of the container 1.

The system 8 for deploying / deploying the cover 7 also comprises, as shown in FIGS. 1, 3, 4, 9 to 12, links 16 between the mobile coach carriages 10e, and followers 10s. Each of these links 16 (or compass) comprises 2 articulated arms 16 \ 16 ² , the ends of which are fixed to the frames 14 of two successive mobile carriages 10.

The system 8 also at least one (in this case one) operating member 17 for the translation of the trainer and follower assemblies 9e, 9s, 10e, 10s. In this case, it is a pole 17, one end of which is connected with an ad hoc element provided on at least one of the movable driving carriages 9e: FIGS. 1 and 11. This operating member 17 by traction can not only be rigid, as is the case for the pole 17 or a hook, but it can also be a flexible member such as a strap or a rope.

The cover 7 has one end 70 close to the drive arch 9e and an opposite end 71. The latter is secured to the container 1, more precisely with the transverse wall 4. The end 70 of the cover 7 can be fixed reversibly to the transverse wall 3 in the deployment position of the cover 7.

The connection of the cover 7 with the trainer and follower assemblies 9e, 9s, 10e, 10s of the folding / deployment system 8 is carried out, on the one hand, by means of collars connecting the hoops 9e, 9s, to passers-by arranged on the underside of the sheet 7, and, on the other hand, by riveting the longitudinal edges of the sheet 7, on the long outer branches 34 of the stirrups 31, which are an integral part of the links 16 between the mobile carriages 10e, 10s. These parts 31 and 16 shown, in particular in FIGS. 11,

11 A and 11 B, are described below. W () 2020/128308 specifically, the frames 14 of the 10e cPCT / FR2019 / 053127 movable carriages have a general shape of parallelogram, preferably rectangle, in side view and in top view. In particular, as shown in Figures 3,4 and 11, each frame 14 comprises at least 2 rectangular walls, preferably 3, namely an outer wall 140 parallel to the corresponding side wall 2, an upper wall 141 substantially perpendicular to the outer wall 140, and parallel to the plane of the opening 6, and an inner wall 142, perpendicular to the upper wall 141 and parallel to the corresponding side wall 2. The lower edge of the outer wall 140 of the frame 14 is extended in the direction of the upper edge of the longitudinal of the container, by a flange 143. This frame 14 thus has a general shape of "U" overturned in straight cross section. One of the branches of the "U" corresponding to the interior wall 142 is shorter than the other branch of the "U" corresponding to the exterior wall 140. Each frame 14 is thus a jumper which overlaps the upper lateral edge 12 of the container 1. The inner face of the outer wall 140 is opposite the longitudinal rail 1 1 corresponding guide.

The dimensional characteristics of the frame 14 are chosen to offer the best compromise in terms of rigidity / maneuverability of the set of movable carriages 10e coaches / hoops coaches 9e. For example, the length of the frame L _b and the width of the container 1 are such that / L _b = 2500 mm / 230 mm = 11. As shown in FIGS. 3, 4 & 8, two sets 18 of rollers 15, mounted on a support 19, are fixed on the internal face of the first wall 140 of the frame 14 and rest integrally on the rim 143. As illustrated in FIGS. 8 and 8 A, the rollers 15 of each of these two sets 18 'are consist, on the one hand, of two rotating rollers 15 ¹ with an axis substantially perpendicular to the side wall 2 of the container 1, and, on the other hand, of three rotating rollers 15 ² for guiding an axis substantially perpendicular to the side wall 3. These five rollers 15 are on two levels. At the upper level, one of the guide rollers 15 ² is interposed between the 2 rolling rollers 15 ¹ , while the other ² guide rollers 15 ² are arranged below. Preferably, each lower guide roller 15 ² has an axis of rotation orthogonal to the axis of rotation of one of the upper rollers 15 ¹ .

It appears from Figures 3, 4 and 8, in particular, that each longitudinal guide rail 11 consists, inter alia, of an upper track 111, perpendicular to the corresponding side wall 3, on which the rollers 15 ¹ of bearing are intended to move and a lower track 112, parallel to the corresponding side wall 3, on which the guide rollers 15 ² are intended to roll. Each of these tracks WO 2020/128308 re 111 and lower 112 faces a calag ramp PCT / FR2019 / 053127 13 & 114. The rollers 15 ¹ for rolling are thus arranged between the upper track 111 and the upper wedge ramp 113 and rollers 15 ² guide, between the lower track 112 and the lower timing ramp 114. This configuration allows stabilization of the rollers 15 ¹ 15 ² during their displacement in translation. In practice, this guide rail 1 1 consists of a metal profile produced by folding one or more plates, in this case two: an inner plate 115 and an outer plate 116. The inner plate 115 comprises a main panel 115a secured to the wall 2, in the vicinity of its upper part close to the upper edge 12, an upper panel 115b perpendicular to the main panel 115a and a lateral return 115c, which extends downwards perpendicularly to the upper panel 115b. The outer plate 116 is a “U” shaped profile secured (eg welding), by its base, to the wall 2, in the vicinity of its upper part close to the upper edge 12. The upper wing of the “U” is the upper track 1 1 1, while the lower wing has a flap extending orthogonally downwards and constituting the lower wedge ramp 1 14.

According to the invention, each guide rail 11 is mounted parallel and at a distance D from the longitudinal upper edge 12 of the side wall 2 of the container 1. The longitudinal upper edge 12 is inscribed in a plane parallel to that of the opening 6 of the container 1. Expressed relative to the height of the container 1, that is to say the width of the side wall 2 of this container 1, the distance D corresponds to 10 ⁴ to 5% of the height of the container 1. In this case, the height of the container 1 is for example 2500 mm for D = 5 mm, or 0.2% of the height of the container 1.

In a variant, the distance D corresponds to 2 to 8%, e.g. D = 100 mm from the height of container 1, i.e. 4% of the height of container 1

As shown in Figures 3, 4, 5, 6 & 7, the locking means 20 for immobilizing the driving carriages 10e relative to the guide rail of the container 1, are constituted by a lock 20 comprising a rod 21, a helical return spring 22, fitted on the rod 21, a guide 23 of the rod 21, a bolt 24 mounted at the lower end [or free end] of the rod 21 and intended to penetrate into a lumen 110 of the upper section 115a of the guide rail 11, to block the movement of the driving carriage 10e. This lock 20 is integral with a fixing plate 20a, itself fixed, for example by screwing / riveting on the frame 14 of the driving carriage 10e. A ball spring plunger 25 is inserted into the bolt 24. This ball spring plunger 25 comprises a ball 26 held projecting out of the free end of the plunger 25, under the tension of a spring 27. In the non-position locked, this ball

26 is, on the one hand, in the retracted position in the pusher 25, and, on the other hand, bearing on WO 2020/128308 upper 115a (track 111) of the guide rail 11. LPCT / FR2019 / 053127nt of the driving carriage 10e, this ball 26 rolls on itself, so as to limit the friction generated by the elastic support of the ball 26 against the track 111, by the spring 27. The end 24o of the rod opposite the free end or bolt 24, is an end 24o for controlling the translation of this rod 24, against the elastic return exerted by the spring 22. This control of the translation of the rod 21 for unlock the driving carriage 10e, that is to say remove the bolt or free end 24 of the rod 21 of the light 110 formed in the track 111 of the rail 11, can be carried out using any suitable accessory, such as that the pole 17 usable for the maneuver in translation of folding back / deployment of the tarpaulin 7.

The inner face of the inner wall 142 of the frame 14 of each movable driving carriage 10e is integral with the ends of the two hoops 9e. In this exemplary embodiment, the ends are fixed by a screw / bolt fastening system to anchor heads 28 each welded in a longitudinal longitudinal region of the inner wall 142.

The frame 14 also has rectangular 144 recesses, in its outer wall 140 and in its upper wall 141.

The outer face of the outer wall 140 of the frame 14 is provided with a connecting element 145 of the movable driving carriage 10e with one of the ends of the pole 17 useful as an operating member. This connection element is an eyelet 145, as shown in FIG. 11.

The movable carriages follower assemblies 10s / hoops 9s have a structure similar to that of the movable carriages assembly 10e / hoops 9e, with the difference that, in each subassembly consisting of two mobile carriages 10s and a hoop 9s, each movable carriage 10s comprises a frame 14s of length L _Bs less than the length L _B of the frame 14 of a driving carriage 10e. Preferably, L _Bs <0.8 * L _b ; more preferably still L _Bs <0.6 * L _B ; and even more preferably L _Bs <0.5 * L _B. In particular, in this example L _Bs = 80mm; L _B = 230mm; L _Bs = 0.35 * L _B.

The widths L _B „L _{Bs are} understood here as the largest dimensions of the frames 14 and 14s in the longitudinal direction of the container 1.

The links 16 between the mobile carriages 10e, 10s are shown in Figures 11, 1 IA and 1 IB. These links 16 are for example made of coated textile fabric like cover 7, or even plastic or metal. The two articulated arms 16 ¹ and 16 ² of each link 16 are secured by their free ends, with the frames 14, 14 ', and more WO 2020/128308 slow with the upper wall 141 of these frames 14, 14 ′, PCT / FR2019 / 053127 using screws 30, as shown in FIG. 1 IB. A stirrup 31 is fixed at the articulation zone of each link 16, by means of screws 32. This stirrup 31 has a general shape of "U" whose base 33 is screwed to the link 16 including one of the branches 34 is longer than the other branch 35. These 2 branches 34, 35 are connected to each other by a spacer 36, one end of which is fixed to the free end of the short branch 35 of the " U ”of stirrup 31 pointed spacer 36 is also parallel to the base of" U ". It is spacer 36 is a shaft around which is fitted a cylindrical rolling part 37 free to rotate and resting on the upper edge longitudinal 12 of the container 1. This cylindrical rolling part 37 is designed to roll around the shaft 36, during the translational movement of the cover during the folding / unfolding implemented by the system 8 according to the invention. end of the long branch 34 of the U-shaped stirrup 31, below the spacer 36 constitutes a guide stop lateral age designed to cooperate with the lateral face of the guide rail 11.

The articulated arms 16 ¹ & 16 ² of the link 16 can advantageously be reinforced using metal ribs not shown in the figures.

In this embodiment, all the constituent parts of the system 8 of folding / deployment of the sheet 7, excluding the links 16, are metallic. The connections between these parts are made by welding, bolting, screwing, riveting ...

Alternatively, it is possible that the folding / deployment system of the cover 7 includes a drive assembly formed by 2 lateral movable carriages 10e / 2 hoops 9e, at each end 70.71 of the cover 7. Preferably , at least one of the 2 lateral movable carriages of each set is equipped with locking means 20.

According to another variant, the 2 9th driving hoops could together form a single piece connected at its ends to the movable side driving carriages 10th, or even be completed by one or more other 9th driving hoops.

A single operator, whether located below or above the tarpaulin 7, can easily maneuver the latter and the mobile trolley / hoop assemblies in the direction of deployment as well as in the direction of deployment, d 'only one side of the container 1. It suffices to connect the end of the rigid pole 17, provided with a connecting member, for example a hook, to the connection element 145 extending from the outer wall 140 of the rigid frame 14 of a mobile carriage WO 2020/128308 lateral ir 10th. As shown in Figure 12, the oper, PCT / FR2019 / 053127i in translation the movable carriage carriage 10e which forms a single block with the 2 arches 9e and the other mobile carriage carriage side 10e. The main translational movement of the mobile coach carriage 10e connected to the pole 17, is shown by the arrow in solid lines in FIG. 12. The movement followed by the other mobile coach carriage 10e is shown by the arrow in dotted lines in FIG. 12. This translation is carried out without abutment and without blocking by a simple and secure manual maneuver. This system is robust and impact resistant. It works with a certain margin of tolerance vis-à-vis the deformations of the container 1. It is adaptable container dimensions. Finally, it is easy to assemble and disassemble on all types of containers.

Examples

The invention is not limited to the embodiments described above, only by way of examples, but it encompasses all the possible variants, obviously by those skilled in the art.

List of reference signs

- 1: Container; 2: side walls of container 1; 3,4: transverse walls of the container 1; 5: bottom of container 1; 6: open upper face / opening of container 1; 7: tarpaulin; 8: cover 7 deployment / deployment system; 9: transverse arches; 9th: cross bars for coaches; 9s: follower cross hoops; 10: mobile carts; 10th: mobile coach trolleys; 10s: mobile follower carts; 11: longitudinal side rails; 12: upper longitudinal edge of each side wall 2,3; 13: upper edge of the transverse wall 3; 14: frame of the mobile coach carriages 10e; 14 ': frame of 10s follower mobile carriages; 15: rollers of the mobile coach carriages 10e; 15 ¹ .: rotary rollers; 15 ² : rotary guide rollers 16: links (compass) between the moving carriages 10; 16 \ l6 ² : articulated arms of link 16; 17: operating member of the trainer and follower assemblies 9e, 9s, 10e, 10s; 18: set of rollers 15; 19: support of the rollers 15; 20: lock; 20a: lock fixing plate 20; 21: rod of the lock 20; 22: return spring of the lock 20; 23: rod guide 21; 24: bolt of the rod 21; 25: ball spring plunger of the rod 21; 26: ball of pusher 25; 27: spring of pusher 25; 28: head for anchoring the hoops 9e, 9s on the frames 14 & 14 ′ of the mobile coach carriages 10 e and followers10; 30: fastening screw for links 16; 31: stirrup of link 16; 32: caliper fixing screw 31; 33: base of stirrup 31; 34: long stirrup branch WO 2020/12830815: short branch of stirrup 31; 36: spacers of 1PCT / FR2019 / 053127 ce bearing of the spacer 36; 70: end of the cover 7 close to the drive arch 9e; 71: end opposite to end 70; 110: locking light (keeper) of the upper section 115a of the rail 11. 111: upper track of the guide rail 11; 112: lower track of the guide rail 11; 113 & 114: setting ramp of the rollers 15; 115: inner plate of the guide rail 11; 115a: main section of plate 115; 115b: upper panel of the plate 115; 115c: lateral return of the upper panel 115b; 116: outer plate of the guide rail 11; 140: outer wall of the frame 14; 141: upper wall of the frame 14; 142: inner wall of the frame 14; 143: lower edge of the outer wall 140 of the frame 14; 144: rectangular recess of the frame 14; 145: connection element (eyelet) to the pole 17.

Claims

[Claim 1] Polyhedral container (1), preferably parallelepipedic:

- at least one of the faces of which, preferably the upper face (6), is open,

- which is equipped with a system (8) for folding back / deploying a tarpaulin (7) on this open face;

- Also comprising two side walls (2,3) and a bottom (5);

this system (8) for folding / deploying the tarpaulin (7) having the following characteristics:

- it comprises arches (9, 9e, 9s) supporting the cover (7),

- each hoop (9, 9e, 9s) is connected at each of its ends to a mobile carriage (10,

10th, 10s) in translation:

. in a guide rail (11) disposed along a side wall (2) of the container (1);

. between a tarpaulin deployment position (7) and a tarpaulin folding position (7);

- at least one of the end hoops (9) is a driving hoop (9e), in the vicinity of which can be or is connected at least one operating element (17) in translation of the hoops (9, 9e, 9s) , said element (17) allowing manual folding / unfolding of the tarpaulin (7);

characterized in that:

* the mobile carriages (10, 10e) of the driving hoop (9e) are different from the mobile carriages (10, 10s) of the other hoops (9s);

• each movable carriage (10e) of the driving hoop (9e) comprises a frame (14) on which are mounted rollers (15) which cooperate with one of the guide rails (11); • at least one of the movable carriages (10e) of the driving arch (9e) is equipped with at least one latch (20) allowing the mobile cart (10e) to immobilize at least one of the regions end of the guide rail (11), in the deployment position of the sheet (7) on the opening (6) of the container (1);

[Claim 2] Container (1) according to claim 1 characterized in that the assembly constituted by the driving arch (9e) and its mobile terminal driving carriages (10e), has a mechanical rigidity such as this assembly (9 ^e , 10e) can be moved along the guide rails (11) by driving the tarpaulin (7) and the other movable follower terminal carriages (10s) and the other follower hoops (9s), by manual traction by a single operator, one side of the container (1).

[Claim 3] Container (1) according to claim 1 characterized

- in that the frame (14) of each movable driving carriage (10e) comprises at least two rectangular walls (140, 141, 142), namely an outer wall (140) substantially parallel to the plane of the side wall (2) of the container and an upper wall (141) perpendicular to the outer wall (140), this frame (14 ) preferably comprising an inner wall (142) perpendicularly secured, preferably by its end portions of the ends of two driving arches (9e);

- in that the frame (14) of each movable driving carriage (10e) has the following dimensional characteristics:

4 </ L _B £ 20; preferably 6 </ L _B <18; and more preferably still 8 </ Lg £ 15;

with L _b corresponds to the length of the frame and 4 corresponds to the width of the container.

[Claim 4] Container (1) according to at least one of the preceding claims, characterized in that the lock (20) can be operated both from the space above the container (1) and from the space located at below the open upper face (6), this lock (20) preferably comprising at least one rod (21) and at least one spring (22) tending to actuate the rod (21) in translation of the frame (14) towards the guide rail (11), so as to allow the free end (24) of the rod (21) close to the rail (11) to penetrate into a blocking opening (110) provided on the rail (11 ) guide, and thereby immobilizing the carriage (10e) relative to the rail (11).

[Claim 5] Container (1) according to claim 4 characterized in that the end of the rod opposite the free end (24) is an end for controlling the translation of this rod (21) against of the elastic return exerted by the spring (22) and in that the free end (24) is provided with a ball (26) mounted on a spring (27) and intended to rest and to roll on the corresponding face of the rail ( 11) guide, when the free end (24) of the rod (21) is released from the light (110) blocking the rail (11).

[Claim 6] Container (1) according to at least one of the preceding claims, characterized in that each movable driving carriage (10e) comprises rollers (15 ¹ ) which rotate with an axis perpendicular to the side wall (2) of the container (1) and rotary rollers (15 ² ) for guiding the axis parallel to the latter.

[Claim 7] Container (1) according to at least one of the preceding claims, characterized in that each guide rail (11) is mounted in parallel and at a distance D from the longitudinal upper edge (12) of the side wall (2, 3) of the container (1), D preferably representing from 0 to 10%, more precisely either from 10 ^{4 to} at least 2%, or from 2 to 8% of the height of the container (1), that is to say -to say the width of the side wall (2) of the container (1).

[Claim 8] Container (1) according to at least one of the preceding claims, characterized in that at least one of the mobile carriages of a set of mobile carriages (10) / hoop (x) (9), preferably of the set of movable driving carriages (10e) / driving hoops (9e), the two mobile carriages (10) opposite one another, is (are) provided with a connection element (145) with a member for maneuvering (17) the translation of the mobile carriages (10) for the folding-deployment of the tarpaulin (7).

[Claim 9] Container (1) according to at least one of the preceding claims, characterized in that the mobile carriages (10, 10e, 10s) are linked to each other, on each side of the container (1), by links ( 16) each comprising two articulated arms (16 ¹ , 16 ² ).

[Claim 10] System (8) for folding / deploying a tarpaulin (7) on at least one open face (6) - preferably the upper face - of a polyhedral container (1) - preferably parallelepipedic - further comprising two side walls (2) and a bottom

(5);

- it comprises arches (9, 9e, 9s) supporting the cover (7),

- each hoop (9, 9e, 9s) is connected at each of its ends to a mobile carriage (10, 10e, 10s) in translation:

. in a guide rail (11) disposed along a side wall (2) of the container (1); . between a tarpaulin deployment position and a tarpaulin folding position

(V);

- at least one of the end hoops (9) is a driving hoop (9e), in the vicinity of which can be or is connected at least one element (17) for operating in translation of the hoops (9), said element ( 17) allowing manual folding / deployment of the tarpaulin; characterized in that:

• the mobile carriages (10e) of the driving hoop (9e) are different from the mobile carriages (10s) of the other hoops (9s);

• each movable carriage (10th) of the driving hoop (9th) comprises a frame (14) integral with rollers (15) for rolling which cooperate with one of the guide rails (11);

“At least one of the movable carriages (10e) of the driving arch (9e) is equipped with at least one latch (20) allowing the mobile cart (10e) to immobilize at least one of the regions end of the guide rail (11), in the deployment position of the sheet (7) on the opening (6) of the container (1);

• the mobile carriages (10) are linked to each other, on each side of the container (1), by links (16) each comprising two articulated arms (16 ¹ , 16 ² ); • the assembly constituted by the driving arch (9e) and its opposite mobile carriages (10e), has a mechanical rigidity such that this assembly (9e, 10e) can be moved along the guide rails (11) by driving the tarpaulin (7) and the other hoops (9s), by manual traction by a single operator, on one side of the container.

[Claim 11] Method for folding back / deploying a tarpaulin (7) on at least one open face (6) - preferably the upper face - of a polyhedral container - preferably parallelepipedic - characterized in that it essentially consists in maneuver manually and on one side of the container (1), a system (8) for folding / deploying the container (1) according to at least one of claims 1 to 9, or the system (8) for folding / deploying according to claim 10.