EP1609725B1 - Stackable crate with foldable walls - Google Patents

Stackable crate with foldable walls Download PDF

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Publication number
EP1609725B1
EP1609725B1 EP05300436A EP05300436A EP1609725B1 EP 1609725 B1 EP1609725 B1 EP 1609725B1 EP 05300436 A EP05300436 A EP 05300436A EP 05300436 A EP05300436 A EP 05300436A EP 1609725 B1 EP1609725 B1 EP 1609725B1
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EP
European Patent Office
Prior art keywords
crate
tray
foldable side
top frame
side walls
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
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EP05300436A
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German (de)
French (fr)
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EP1609725A1 (en
Inventor
Raphaël Barbet
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Linpac Materials Handling France SA
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Linpac Materials Handling France SA
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Publication of EP1609725A1 publication Critical patent/EP1609725A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
    • B65D11/18—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material collapsible, i.e. with walls hinged together or detachably connected
    • B65D11/182—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material collapsible, i.e. with walls hinged together or detachably connected comprising two side walls hinged along the sides of a base panel and to an upper frame and two other side walls being hinged only to the upper frame
    • B65D11/1826—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material collapsible, i.e. with walls hinged together or detachably connected comprising two side walls hinged along the sides of a base panel and to an upper frame and two other side walls being hinged only to the upper frame and one or more side walls being foldable along a median line
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
    • B65D21/02—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
    • B65D21/0209—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together stackable or joined together one-upon-the-other in the upright or upside-down position
    • B65D21/0213—Containers presenting a continuous stacking profile along the upper or lower edge of at least two opposite side walls

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Stackable Containers (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)

Abstract

The container has four folding lateral panels (6-9) extending between an upper frame (3) and a base (2). One of the panels (6, 7) rotates with respect to the upper frame (3). A locking unit (16) locks rotating movement of the panels (6, 7) when the container is filled with load and rests on the ground, and permits rotating movement for the panels (6, 7) when the container is empty.

Description

La présente invention concerne un bac dépliable et repliable à volonté, présentant une ou plusieurs parois rabattables et pouvant être gerbé facilement.The present invention relates to a foldable and foldable tray at will, having one or more foldable walls and can be stacked easily.

Depuis de très nombreuses années, des emballages utilisés pour conditionner différents types de produits, tels que des denrées alimentaires, des pièces automobiles, des textiles, etc., sont réalisés à partir de matériaux d'origines naturelles, comme le carton ou le bois. En raison des normes de recyclage imposées aux industriels et aux commerçants, notamment aux magasins de la grande distribution, tous les emballages doivent être stockés à part, puis enlevés par une entreprise spécialisée se chargeant de leur récupération et de leur retraitement. Les volumes de stockage de ces déchets deviennent très importants et le personnel doit occuper une partie de son temps à compacter ces cartons. Enfin, les coûts liés aux recyclages sont répercutés aux industriels et aux commerçants.For many years, packaging used to package different types of products, such as foodstuffs, car parts, textiles, etc., are made from natural materials, such as cardboard or wood. Due to the recycling standards imposed on manufacturers and traders, particularly retail stores, all packaging must be stored separately and then removed by a specialized company responsible for their recovery and reprocessing. The storage volumes of this waste become very important and the staff must spend some of their time compacting these boxes. Finally, the costs related to recycling are passed on to manufacturers and traders.

En raison de ces contraintes, ces emballages traditionnels tendent à disparaître. Des bacs de forme parallélépipédiques en matériaux plastiques viennent les remplacer. Ces bacs font la navette entre l'industriel qui y met ses produits à vendre et le commerçant. Ces bacs présentent ainsi les avantages d'être beaucoup plus solides lors des manutentions et des stockages, de protéger efficacement les produits, de pouvoir être gerbés sans risque d'écrasement, d'être utilisables de nombreuses fois, d'avoir des dimensions standards adaptées au chargement d'un camion et d'être également recyclable en fin de vie.Because of these constraints, these traditional packaging tend to disappear. Bins parallelepiped shape of plastic materials replace them. These bins make the shuttle between the manufacturer who puts his products for sale and the merchant. These bins have the advantages of being much more solid during handling and storage, to protect the products effectively, to be stacked without risk of crushing, to be used many times, to have standard dimensions adapted loading a truck and also being recyclable at the end of life.

Art antérieurPrior art

Très récemment, il est apparu des bacs repliables, qui présentent ainsi la capacité d'occuper un volume cinq fois plus faible lorsqu'ils sont en position repliée, par rapport à leur état déployé. Ces bacs ont l'avantage d'être gerbables lorsqu'ils sont pleins, lorsqu'ils sont vides et déployés et lorsqu'ils sont repliés. Ces bacs présentent les avantages réels d'occuper un volume beaucoup plus réduit lorsque le commerçant les renvoie vide à l'industriel pour un nouveau rechargement. Les frais de transports sont réduits et la manutention de bacs repliés est plus aisée et plus rapide.Very recently, it has appeared folding bins, which thus have the capacity to occupy a volume five times lower when they are in the folded position, compared to their deployed state. These bins have the advantage of being stackable when they are full, when they are empty and deployed and when they are folded. These bins have the real advantages of occupying a much smaller volume when the trader sends them empty to the industrialist for a new reloading. Transport costs are reduced and handling of folded bins is easier and faster.

On connaît par exemple d'après les documents FR- 2.706.424 et EP- 1.386.847 un bac parallélépipédique repliable, du type comprenant un fond, un cadre supérieur, et quatre parois latérales rabattables s'étendant verticalement entre le cadre supérieur et le fond, au moins l'une des parois latérales rabattables étant apte à pivoter par rapport au cadre supérieur.For example, documents FR-2 706 424 and EP-1 386 847 disclose a folding parallelepipedal container of the type comprising a bottom, an upper frame, and four folding side walls extending vertically between the upper frame and the bottom, at least one of the folding side walls being pivotable relative to the upper frame.

Le document US- 3.796.342 décrit un bac repliable comprenant un fond, un cadre supérieur et quatre parois latérales rabattables. Les parois latérales pivotent par rapport au cadre supérieur. Des moyens de verrouillage sont disposés au niveau du fond et bloquent le bord inférieur de l'une des parois latérales. Le verrouillage de cette paroi latérale se fait, d'une part par coincement d'une patte faisant partie de la paroi entre le bord inférieur du fond et une saillie et d'autre part par insertion dans un orifice d'une extrémité libre de la patte.US-3,796,342 discloses a collapsible container comprising a bottom, an upper frame and four folding side walls. The side walls pivot relative to the upper frame. Locking means are arranged at the bottom and block the lower edge of one of the side walls. The locking of this side wall is done, firstly by wedging a lug forming part of the wall between the lower edge of the bottom and a projection and secondly by insertion into an orifice of a free end of the paw.

Cependant, il arrive que lors du transit du bac rempli par l'industriel vers le commerçant, une ou plusieurs des parois latérales rabattables soient ouvertes. La ou les parois peuvent se rabattre partiellement ou totalement par léger pivotement ou par mouvement de rotation complet. Ces mouvements de parois sont possibles lorsque le bac est rempli de manière incomplète, lorsque les produits ne sont pas correctement placés et laissent des vides ou lorsque les emballages des produits ne sont pas suffisamment rigides. Une telle ouverture survient de manière intempestive, en raison de chocs pouvant intervenir lors des manipulations du bac ou en raison des vibrations générées lors du transport. Une ouverture frauduleuse est également constatée, la totalité ou seulement une partie du contenu du bac étant alors dérobée.However, it happens that during the transit of the tray filled by the industrial to the trader, one or more foldable side walls are open. The wall or walls can be folded partially or completely by slight pivoting or by complete rotational movement. These wall movements are possible when the tray is incompletely filled, when the products are not properly placed and leave voids or when the product packaging is not sufficiently rigid. Such opening occurs inadvertently, due to shocks may occur during handling tray or due to vibrations generated during transport. A fraudulent opening is also noted, all or only part of the contents of the tray being stolen.

Exposé de l'inventionPresentation of the invention

Un problème principal que se propose de résoudre l'invention consiste à mettre au point un bac en un matériau polymère, qui soit à la fois repliable par rabattement d'une ou plusieurs de ses parois et qui puissent facilement être gerbé. Un deuxième problème est la réalisation d'un bac présentant des moyens destinés à empêcher son ouverture partielle ou totale.A major problem to be solved by the invention is to develop a tray of a polymeric material, which is both collapsible by folding one or more of its walls and which can easily be stacked. A second problem is the realization of a tray having means for preventing its partial or total opening.

De façon connue, l'invention se rapporte à un bac parallélépipédique repliable, du type comprenant un fond, un cadre supérieur, et quatre parois latérales rabattables s'étendant verticalement entre le cadre supérieur et le fond, au moins l'une des parois latérales rabattables étant apte à pivoter par rapport au cadre supérieur et des moyens de verrouillage disposés au niveau du fond et bloquant le bord inférieur libre de la paroi latérale rabattable.In known manner, the invention relates to a collapsible parallelepiped bin, of the type comprising a bottom, an upper frame, and four folding side walls extending vertically between the upper frame and the bottom, at least one of the walls side foldable being pivotable relative to the upper frame and locking means disposed at the bottom and blocking the free bottom edge of the foldable side wall.

Conformément à un premier aspect de l'invention, le bac est caractérisé en ce que les moyens de verrouillage comprennent au moins une languette mobile, présentant sur sa face supérieure un cran se déployant à partir du fond en direction du cadre supérieur, le cran venant en butée contre le bord inférieur libre de la paroi latérale rabattable, la face inférieure de la languette mobile étant destinée à être posée contre un support, de façon à verrouiller ladite languette mobile et à bloquer tout mouvement de pivotement de la paroi latérale rabattable, lorsque le bac est en charge et repose sur le support, et de façon à permettre tout mouvement de pivotement de ladite paroi latérale rabattable lorsque le bac est vide.According to a first aspect of the invention, the tray is characterized in that the locking means comprise at least one movable tab, having on its upper face a notch extending from the bottom towards the upper frame, the notch in abutment against the lower free edge of the folding side wall, the lower face of the movable tongue being intended to be placed against a support, so as to lock said movable tongue and to block any pivoting movement of the folding side wall, when the tray is loaded and rests on the support, and so as to allow any pivoting movement of said folding side wall when the tray is empty.

Autrement dit, avec ses moyens de verrouillage, toute ouverture de paroi par pivotement est empêchée lorsque le bac et partiellement ou totalement rempli. Malgré la présence des moyens de verrouillage, le rabattement de cette ou de ces parois pour le repliement du bac se fait aisément, lorsque ce dernier est vide.In other words, with its locking means, any wall opening by pivoting is prevented when the tray and partially or completely filled. Despite the presence of the locking means, the folding of this or these walls for the folding of the tray is easy, when the latter is empty.

Pour assurer un blocage complet, le bord inférieur libre de la paroi latérale rabattable peut être coincé entre le cran de la languette mobile et un rebord extérieur issu du fond du bac.To ensure complete blocking, the free bottom edge of the folding side wall can be wedged between the notch of the movable tongue and an outer edge coming from the bottom of the tray.

La languette mobile peut préférentiellement directement faire partie du fond. Le fond peut en outre comprendre une plaque inférieure de dimensions sensiblement inférieures à celles du fond, délimitant un épaulement périphérique et formant un piétement. Dans une réalisation avantageuse, la languette mobile peut simultanément faire partie du fond et de la plaque.The movable tongue may preferentially be part of the bottom. The bottom may further comprise a bottom plate of dimensions substantially smaller than those of the bottom, defining a peripheral shoulder and forming a base. In an advantageous embodiment, the movable tongue can simultaneously be part of the bottom and the plate.

Lorsque le bac repose sur le support, dans un premier cas, celui-ci peut être constitué par le sol. Dans cette situation, la face inférieure de la languette au niveau de la plaque est posée contre le sol. Dans un deuxième cas qui est celui des bacs gerbés les uns sur les autres, le support peut être constitué par un deuxième bac, le premier bac étant gerbé sur le deuxième bac. Dans cette situation, la face inférieure de la languette au niveau du fond est posée contre la face supérieure du cadre supérieur.When the tray rests on the support, in a first case, it may be constituted by the ground. In this situation, the underside of the tongue at the plate is placed against the ground. In a second case which is the stacked bins on top of each other, the support can be constituted by a second tray, the first tray being stacked on the second tray. In this situation, the lower face of the tongue at the bottom is placed against the upper face of the upper frame.

Pour son repliement aisé, le bac peut favorablement comprendre deux parois latérales rabattables opposées, réalisées chacune en un panneau supérieur étant solidarisé et apte à pivoter par rapport au cadre supérieur et un panneau inférieur étant solidarisé et apte à pivoter par rapport au fond, les deux panneaux étant solidarisés et aptes à pivoter l'un par rapport à l'autre, et deux parois latérales rabattables opposées, chacune étant solidarisée et aptes à pivoter par rapport au cadre supérieur et ayant un bord inférieur libre.For its easy folding, the tray can favorably include two opposite folding side walls, each made of an upper panel being secured and pivotable relative to the upper frame and a lower panel being secured and pivotable relative to the bottom, both panels being secured and pivotable relative to each other, and two opposite folding side walls, each being secured and pivotable relative to the upper frame and having a free bottom edge.

Le bac peut en outre comprendre des moyens mécaniques de détection d'une ouverture et d'un pivotement d'au moins l'une des parois latérales rabattables par rapport au cadre supérieur.The tray may further comprise mechanical means for detecting an opening and pivoting of at least one of the side walls foldable relative to the upper frame.

Description sommaire des figuresBrief description of the figures

L'invention sera bien comprise et ses divers avantages et différentes caractéristiques ressortiront mieux lors de la description suivante, de l'exemple non limitatif de réalisation, en référence aux dessins schématiques annexés, dans lesquels :

  • la Figure 1 représente une vue du dessus en perspective du bac selon la présente invention, vu à l'état déplié ;
  • la Figure 2 représente une vue du dessus en perspective du bac en cours de repliement ;
  • la Figure 3 représente une vue en perspective du dessous du bac replié ;
  • la Figure 4 représente une vue partielle en plan du dessous du bac ;
  • la Figure 5 représente une vue partielle en perspective des moyens de verrouillage à l'intérieur du bac ;
  • la Figure 6 représente une vue partielle en perspective écorchée des moyens de verrouillage du bac reposant sur le sol ;
  • la Figure 7 représente une vue partielle en perspective écorchée des moyens de verrouillage du bac reposant sur un autre bac ;
  • la Figure 8 représente une vue partielle en perspective écorchée des moyens de verrouillage en cours de déverrouillage ; et
  • la Figure 9 représente une vue partielle en perspective écorchée des moyens de verrouillage en position déverrouillée.
The invention will be better understood and its various advantages and different characteristics will become more apparent in the following description, of the nonlimiting exemplary embodiment, with reference to the appended diagrammatic drawings, in which:
  • Figure 1 shows a top view in perspective of the tray according to the present invention, seen in the unfolded state;
  • Figure 2 shows a top view in perspective of the tray being refolded;
  • Figure 3 shows a perspective view of the underside of the folded tray;
  • Figure 4 shows a partial plan view of the underside of the tray;
  • Figure 5 shows a partial perspective view of the locking means inside the tray;
  • Figure 6 shows a partial cutaway perspective view of the locking means of the tray resting on the ground;
  • Figure 7 shows a partial cutaway perspective view of the tray locking means resting on another tray;
  • Figure 8 shows a partial cutaway perspective view of the locking means being unlocked; and
  • Figure 9 shows a partial cutaway perspective view of the locking means in the unlocked position.

Description détaillée de l'inventionDetailed description of the invention

Comme le représente la Figure 1, un bac (1) est réalisé en matière plastique (par exemple en polypropylène ou en polyéthylène et se présente sous la forme d'un parallélépipède, par exemple de dimensions sensiblement égales à 600 x 400 x 400 mm, et analogue à une caisse lorsqu'il est à l'état complètement déplié. Le bac (1) comprend ainsi un fond (2), une ceinture ou cadre supérieur (3) délimitant une ouverture (4) et quatre parois latérales s'étendant sensiblement verticalement entre le fond (2) et le cadre supérieur (3).As shown in Figure 1, a tray (1) is made of plastic material (for example polypropylene or polyethylene and is in the form of a parallelepiped, for example of dimensions substantially equal to 600 x 400 x 400 mm, and like a box when fully unfolded, the tray (1) thus having a bottom (2), belt or upper frame (3) defining an opening (4) and four extending sidewalls substantially vertically between the bottom (2) and the upper frame (3).

Parmi ces quatre parois latérales, deux petits cotés ou parois verticales latérales transversales opposées comportent chacune un panneau transversal (6 et 7) qui est articulé par charnière sur le petit côté du cadre supérieur (3). Et parmi ces quatre parois latérales, deux grandes parois verticales latérales longitudinales opposées comportent chacune un panneau longitudinal supérieur (8) et un panneau longitudinal inférieur (9), de dimensions sensiblement équivalentes. Le panneau supérieur (8) est articulé par charnière sur le grand côté du cadre supérieur (3). Le panneau inférieur (9) est articulé par charnière sur le grand côté du fond (2). Les deux panneaux supérieur et inférieur (8 et 9) sont articulés entre eux par des moyens de type charnière longitudinale pivotant selon une droite horizontale (H).Among these four side walls, two small sides or opposing transverse lateral vertical walls each comprise a transverse panel (6 and 7) which is articulated by hinge on the short side of the upper frame (3). And among these four side walls, two large opposite longitudinal vertical side walls each comprise an upper longitudinal panel (8) and a lower longitudinal panel (9) of substantially equivalent dimensions. The top panel (8) is hinged on the long side of the upper frame (3). The lower panel (9) is hinged on the long side of the bottom (2). The two upper and lower panels (8 and 9) are hinged together by means of pivoting longitudinal hinge type along a horizontal line (H).

Lorsque l'utilisateur exerce une poussée (P) vers l'intérieur du bac (1), les parois transversales (6 et 7) passent par pivotement d'une position verticale d'utilisation (représentée à la Figure 1) à une position horizontale de pliage (représentée à la Figure 2) vers l'intérieur du bac (1). Et lorsque l'utilisateur exerce une poussée (P') vers l'intérieur du bac (1), les panneaux longitudinaux supérieur et inférieur (8 et 9) passent par pivotement d'une position verticale d'utilisation (représentée à la Figure 1) à une position horizontale de pliage (représentée à la Figure 3) vers l'intérieur du bac (1). Les panneaux longitudinaux supérieurs (8) se replient sur les panneaux longitudinaux inférieurs (9).When the user exerts a thrust (P) towards the inside of the tray (1), the transverse walls (6 and 7) pivotally move from a vertical use position (shown in FIG. 1) to a horizontal position folding (shown in Figure 2) to the inside of the tray (1). And when the user exerts a thrust (P ') towards the inside of the tray (1), the upper and lower longitudinal panels (8 and 9) pivotally pass from a vertical position of use (shown in FIG. ) to a horizontal folding position (shown in Figure 3) to the inside of the tray (1). The upper longitudinal panels (8) fold over the lower longitudinal panels (9).

Il est à noter que la poussée (P') sur les panneaux longitudinaux supérieur et inférieur (8 et 9) n'est pas nécessaire, dès que les parois transversales (6 et 7) sont repliées vers l'intérieur du bac (1), ils ne jouent plus le rôle d'entretoise et le poids du cadre supérieur (3) fait rabattre les panneaux longitudinaux supérieur et inférieur (8 et 9) sur le fond (2).It should be noted that the thrust (P ') on the upper and lower longitudinal panels (8 and 9) is not necessary, as soon as the transverse walls (6 and 7) are folded towards the inside of the tray (1) , they no longer play the role of spacer and the weight of the upper frame (3) folds the upper and lower longitudinal panels (8 and 9) on the bottom (2).

L'ouverture (4) est fermée par deux demi-couvercles (11 et 12) (uniquement représentés en Figure 1). Le fond (2) comprend en outre une plaque supplémentaire de base (13). Cette plaque (13) présente des dimensions inférieures aux dimensions du fond (2). Un épaulement périphérique (14) est crée par cette plaque (13) décalée par rapport au fond (2). La plaque (13) sert de piétement. Lorsqu'un bac supérieur est gerbé sur un bac inférieur (voir Figure 7), l'épaulement (14) du bac supérieur coopère avec le cadre supérieur (3) du bac inférieur et sert à stabiliser ce dernier.The opening (4) is closed by two half-covers (11 and 12) (only shown in Figure 1). The bottom (2) further comprises an additional base plate (13). This plate (13) has dimensions smaller than the dimensions of the bottom (2). A peripheral shoulder (14) is created by this plate (13) offset from the bottom (2). The plate (13) serves as a base. When an upper tray is stacked on a lower tray (see Figure 7), the shoulder (14) of the upper tray cooperates with the upper frame (3) of the lower tray and serves to stabilize it.

Conformément à l'invention, afin d'empêcher toute ouverture intempestive ou frauduleuse des parois verticales latérales transversales (6 et 7), le bac (1) comprend des moyens de verrouillage (16). Ces moyens (16) sont prévus pour bloquer les parois transversales (6 et 7) en position verticale, lorsque le bac (1) est rempli avec une charge entière ou partielle. Par la stabilisation complète des parois transversales (6 et 7), ces moyens (16) permettent aussi d'éviter un repliement du bac (1) par retour du cadre supérieur (3) sur le fond (2).According to the invention, in order to prevent any inadvertent or fraudulent opening of the transverse lateral vertical walls (6 and 7), the tray (1) comprises locking means (16). These means (16) are provided for locking the transverse walls (6 and 7) in vertical position, when the tray (1) is filled with an entire or partial load. By the complete stabilization of the transverse walls (6 and 7), these means (16) also prevent folding of the tray (1) by returning the upper frame (3) on the bottom (2).

Comme cela est montré en Figure 5, les moyens de verrouillage (16) comprennent une patte ou languette plane allongée (17) faisant partie du fond (2). Comme les parois transversales (6 et 7) sont à bloquer, quatre languettes (17) sont ménagées, deux étant prévues pour la première paroi transversale (6) et deux autres pour la seconde paroi transversale (7). Les languettes (17) sont disposées vers les panneaux longitudinaux inférieurs (9). Les languettes (17) sont longitudinalement orientées vers les parois transversales (6 et 7).As shown in FIG. 5, the locking means (16) comprise an elongated flat tab or tongue (17) forming part of the bottom (2). As the transverse walls (6 and 7) are to be locked, four tabs (17) are provided, two being provided for the first transverse wall (6) and two others for the second transverse wall (7). The tabs (17) are arranged towards the lower longitudinal panels (9). The tongues (17) are longitudinally oriented towards the transverse walls (6 and 7).

La languette (17) comprend en outre un cran (18) faisant sailli vers le haut, c'est-à-dire en direction de l'intérieur du bac (1) et/ou en direction du cadre supérieur (3), à partir de sa face supérieure (19) et au niveau de son extrémité libre (21). Etant issue de moulage avec le fond (2), la languette (17) présente également une zone d'attache (22), servant de point de pivotement. La languette (17) est ainsi mobile et peut passer d'une position de verrouillage vers une position de déverrouillage et vice et versa.The tongue (17) further comprises a notch (18) projecting upwards, that is to say towards the inside of the tray (1) and / or towards the upper frame (3), to from its upper face (19) and at its free end (21). Being molded with the bottom (2), the tongue (17) also has an attachment zone (22) serving as a pivot point. The tongue (17) is thus movable and can move from a locking position to an unlocking position and vice versa.

Le fond (2) possède un rebord périphérique (23) se déployant vers le haut en direction du cadre supérieur (3). La paroi transversale (6) présente une extrémité inférieure libre (24). Lorsque la paroi transversale (6) est verrouillée, son extrémité inférieure libre (24) est coincée entre le cran (18) de la languette (17) et le rebord périphérique (23) du fond (2). Par ce coincement, tout mouvement de pivotement de la paroi transversale (6) est ainsi empêché.The bottom (2) has a peripheral flange (23) extending upwards towards the upper frame (3). The transverse wall (6) has a free lower end (24). When the transverse wall (6) is locked, its free lower end (24) is wedged between the notch (18) of the tongue (17) and the peripheral rim (23) of the bottom (2). By this jamming, any pivoting movement of the transverse wall (6) is thus prevented.

Etant donnée que la languette (17) est allongée, elle vient se prolonger sur la plaque (13) issue du fond (2). Afin d'éviter toute discontinuité avec la plaque (13) du fond (2) au niveau de l'épaulement (14), la languette (17) présente une excroissance inférieure (26) tournée vers le bas et située dans le même plan que la plaque (13).Since the tongue (17) is elongated, it is extended on the plate (13) from the bottom (2). To avoid any discontinuity with the plate (13) of the bottom (2) at the shoulder (14), the tongue (17) has a lower projection (26) facing downwards and located in the same plane as the plate (13).

En se référant à la Figure 6, lorsque le bac déplié (1) est posé sur le sol (27), la plaque (13) sert de pied et repose sur le sol (27) et l'excroissance inférieure (26) de la languette (17) entre également en contact avec le sol (27). Par ces contacts avec le sol (27) et lorsque le bac (1) est chargé, un mouvement de pivotement vers le bas (voir Flèches R en Figures 8 et 9) de la languette (17) par rapport au fond (2) est empêché. Le poids de la charge placée sur le fond (2) à l'intérieur du bac (1) fait que l'excroissance (26) et ainsi la languette (17) restent plaquées au sol (27). La languette (17) est en position de verrouillage. L'extrémité inférieure libre (24) de la paroi transversale (6) reste ainsi bloquée entre le cran (18) et le rebord périphérique (23) du fond (2), quelle que soit la poussée (P) s'exerçant sur la paroi transversale (6).Referring to Figure 6, when the unfolded tray (1) is placed on the ground (27), the plate (13) serves as a foot and rests on the ground (27) and the lower protrusion (26) of the tongue (17) also comes into contact with the ground (27). Through these contacts with the ground (27) and when the tray (1) is loaded, a downward pivoting movement (see Arrows R in Figures 8 and 9) of the tongue (17) relative to the bottom (2) is stop. The weight of the load placed on the bottom (2) inside the tray (1) that the protrusion (26) and thus the tongue (17) remain plated on the ground (27). The tongue (17) is in the locking position. The free lower end (24) of the transverse wall (6) thus remains locked between the notch (18) and the peripheral rim (23) of the bottom (2), whatever the thrust (P) exerted on the transverse wall (6).

En se référant à la Figure 7, lorsqu'un premier bac déplié (1) est gerbé sur un deuxième bac (28), la plaque (13) s'insère dans l'ouverture du cadre supérieur (3) du deuxième bac (28). La périphérie du fond (2) du premier bac (1) repose sur la tranche supérieure (29) du cadre supérieur (3) du deuxième bac (28). L'épaulement (14) se colle contre la face intérieure (31) du cadre supérieur (3) et empêche un basculement du premier bac (1) par rapport au deuxième bac (28).Referring to Figure 7, when a first unfolded tray (1) is stacked on a second tray (28), the plate (13) is inserted into the opening of the upper frame (3) of the second tray (28). ). The periphery of the bottom (2) of the first tray (1) rests on the upper edge (29) of the upper frame (3) of the second tray (28). The shoulder (14) is glued against the inner face (31) of the upper frame (3) and prevents tilting of the first tray (1) relative to the second tray (28).

Par ces contacts avec le deuxième bac (28) et lorsque le premier bac (1) est chargé, un mouvement de pivotement vers le bas (voir Flèche R en Figures 8 et 9) de la languette (17) par rapport au fond (2) est empêché. Le poids de la charge placée sur le fond (2) à l'intérieur du bac (1) fait que l'extrémité libre (21) et ainsi la languette (17) restent plaquées contre la tranche supérieure (29) du cadre supérieur (3) du deuxième bac (28). La languette (17) est en position de verrouillage. Et l'extrémité inférieure libre (24) de la paroi transversale (6) reste ainsi bloquée entre le cran (18) et le rebord périphérique (23) du fond (2) du premier bac (1), quelle que soit la poussée (P) s'exerçant sur la paroi transversale (6).Through these contacts with the second tray (28) and when the first tray (1) is loaded, a downward pivoting movement (see arrow R in Figures 8 and 9) of the tongue (17) relative to the bottom (2) ) is prevented. The weight of the load placed on the bottom (2) inside the tray (1) makes the free end (21) and thus the tongue (17) remain pressed against the upper edge (29) of the upper frame ( 3) the second bin (28). The tongue (17) is in the locking position. And the free bottom end (24) of the transverse wall (6) thus remains locked between the notch (18) and the peripheral rim (23) of the bottom (2) of the first tank (1), whatever the thrust ( P) acting on the transverse wall (6).

Lorsque le bac (1) est vide (voir Figures 8 et 9), une poussée (P) s'exerçant sur la paroi transversale (6) fait pivoter cette même paroi transversale (6) par rapport au cadre supérieur (3) sur sa charnière. Il est à noter à cet effet que l'extrémité inférieure libre (24) de la paroi transversale (6) présente une conformation complémentaire de celle du cran (18) avec lequel elle coopère. A cet effet, lors de la poussée (P), le bord intérieur (32) de l'extrémité inférieure libre (24) de la paroi transversale (6) s'appuie sur la pente extérieure (33) du cran (18). La languette (17) pivote alors progressivement vers le bas (Flèches R en Figures 8 et 9).When the tray (1) is empty (see Figures 8 and 9), a thrust (P) exerted on the transverse wall (6) rotates the same transverse wall (6) relative to the upper frame (3) on its hinge. It should be noted for this purpose that the lower free end (24) of the transverse wall (6) has a conformation complementary to that of the notch (18) with which it cooperates. For this purpose, during the thrust (P), the inner edge (32) of the free lower end (24) of the transverse wall (6) is supported on the outer slope (33) of the notch (18). The tongue (17) then pivots gradually downward (arrows R in Figures 8 and 9).

Si les opérations de pliage du bac (1) sont réalisées sur une surface plane, le poids du bac (1) seul ne suffit pas pour maintenir la languette (17) en place. L'extrémité inférieure libre (24) se décoince, passe sur le cran (18) et rentre dans le bac (1). Par effet ressort, la languette (17) revient en position d'origine (Flèche B en Figure 8). La paroi transversale battante (6) passe aisément sur le cran (18) de la languette (17) et se retrouve à l'intérieur du bac (1). Les moyens de verrouillage (16) ne sont plus maintenus en position de sécurisation.If the tray (1) folding operations are performed on a flat surface, the weight of the tray (1) alone is not sufficient to hold the tongue (17) in place. The lower free end (24) unhooks, passes on the notch (18) and enters the tray (1). By spring effect, the tongue (17) returns to the original position (arrow B in Figure 8). The swinging transverse wall (6) easily passes on the notch (18) of the tongue (17) and found inside the bin (1). The locking means (16) are no longer maintained in the securing position.

Lors des opérations de dépliage du bac à vide (1), la paroi transversale battante (6) passe aisément sur le cran (18), le bord extérieur (32) de l'extrémité inférieure libre (24) de la paroi transversale (6) s'appuie sur la pente intérieure (33) du cran (18). La languette (17) pivote alors progressivement vers le bas (Flèches R en Figures 8 et 9). Passé le cran (18), la languette (17) revient en position d'origine par effet ressort (Flèche B en Figure 8). L'extrémité inférieure libre (24) se retrouve dans le dégagement prévu entre le cran (18) et le rebord périphérique (23) du fond (2). La paroi transversale (6) est ainsi bloquée en rotation par les moyens de verrouillage (16).During unfolding operations of the vacuum container (1), the swinging transverse wall (6) easily passes on the notch (18), the outer edge (32) of the free lower end (24) of the transverse wall (6) ) is based on the inner slope (33) of the notch (18). The tongue (17) then pivots gradually downward (arrows R in Figures 8 and 9). After the notch (18), the tongue (17) returns to the original position by spring effect (arrow B in Figure 8). The lower free end (24) is found in the clearance provided between the notch (18) and the peripheral rim (23) of the bottom (2). The transverse wall (6) is thus locked in rotation by the locking means (16).

La présente invention n'est pas limitée aux modes de réalisation décrits et illustrés. De nombreuses modifications peuvent être réalisées, sans pour autant sortir du cadre défini par la portée du jeu de revendications. Le nombre et la forme de la languette (17), des crans (18) peuvent être variables.The present invention is not limited to the embodiments described and illustrated. Many modifications can be made, without departing from the scope defined by the scope of the set of claims. The number and shape of the tongue (17), notches (18) can be variable.

Claims (9)

  1. Foldable parallelepiped crate of the type comprising a bottom (2), a top frame (3), four foldable side walls (6, 7, 8, 9) extending vertically between top frame (3) and bottom (2), at least one of the foldable side walls (6, 7) being capable of swivelling relative to top frame (3), and means of locking (16) located on bottom (2) and immobilising the lower free edge (24) of foldable side wall (6, 7), characterised in that means of locking (16) comprise at least one movable tab (17) having, on its upper surface (19), a notch (18) that deploys from bottom (2) towards top frame (3), notch (18) pressing against the lower free edge (24) of foldable side wall (6, 7), the lower surface of movable tab (17) being intended to be placed against a base (27, 28) so as to lock said movable tab (17) and prevent any swivelling movement of foldable side wall (6, 7) when crate (1) is loaded and resting on base (27, 28), thus allowing any swivelling movement of said foldable side wall (6, 7) when crate (1) is empty.
  2. A crate as claimed in claim 1, characterised in that the lower free edge (24) of foldable side wall (6, 7) is wedged between notch (18) of movable tab (17) and an external flange (23) of bottom (2).
  3. A crate as claimed in claim 1 or 2, characterised in that movable tab (17) is part of bottom (2).
  4. A crate as claimed in any of the above claims, characterised in that bottom (2) also comprises a lower plate (13) having dimensions substantially smaller than those of bottom (2) and delimiting a peripheral shoulder (14) forming a support.
  5. A crate as claimed in claim 3 or 4, characterised in that movable tab (17) is part of bottom (2) and plate (13).
  6. A crate as claimed in claim 4 or 5, characterised in that the base consists of the floor (27), the lower surface of tab (17) at the level of plate (13) being intended to be placed against the floor (27).
  7. A crate as claimed in any of claims 1 to 5, characterised in that the base consists of a second crate (28), the first crate (1) being stacked on the second crate (2), the lower surface of tab (17) at the level of bottom (2) being intended to be placed against the upper surface (29) of top frame (3).
  8. A crate as claimed in any of the above claims, characterised in that it comprises two opposite foldable side walls each made of an upper panel (8) being joined and capable of swivelling relative to top frame (3) and a lower panel (9) being joined and capable of swivelling relative to bottom (2), both panels (8, 9) being joined and capable of swivelling relative to each other and two opposite foldable side walls (6, 7), each being joined and capable of swivelling relative to top frame (3) and having a lower free edge (24).
  9. A crate as claimed in any of the above claims, characterised in that it also comprises mechanical means for detecting opening and swivelling relative to top frame (3) of at least one of foldable side walls (6, 7, 8, 9).
EP05300436A 2004-06-22 2005-05-31 Stackable crate with foldable walls Not-in-force EP1609725B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0451305A FR2871782B1 (en) 2004-06-22 2004-06-22 REPLIABLE AND GERBABLE TRAY WITH FOLDABLE WALL
FR0451305 2004-06-22

Publications (2)

Publication Number Publication Date
EP1609725A1 EP1609725A1 (en) 2005-12-28
EP1609725B1 true EP1609725B1 (en) 2007-03-07

Family

ID=34942631

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05300436A Not-in-force EP1609725B1 (en) 2004-06-22 2005-05-31 Stackable crate with foldable walls

Country Status (5)

Country Link
EP (1) EP1609725B1 (en)
AT (1) ATE356037T1 (en)
DE (1) DE602005000660T2 (en)
ES (1) ES2281064T3 (en)
FR (1) FR2871782B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7823728B2 (en) 2005-03-04 2010-11-02 Rehrig Pacific Company Storage container with support structure for multiple levels of nesting
US7891491B2 (en) 2002-06-04 2011-02-22 Rehrig Pacific Company Portable storage container

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2011005654A (en) 2010-05-27 2011-11-28 Rehring Pacific Company Dual height collapsible container.
EP2448256B1 (en) * 2010-10-27 2018-07-18 PeTa Bearbeitungstechnik GmbH Collapsible module body and wall made of the module body
US11352168B2 (en) 2015-06-22 2022-06-07 U.S. Merchants Financial Group, Inc. Collapsible crate
JP6490111B2 (en) * 2017-01-10 2019-03-27 株式会社伸和 Storage case
US11820552B2 (en) 2019-08-26 2023-11-21 Rehrig Pacific Company Containers for oil bottles or the like
US11731803B2 (en) 2021-07-02 2023-08-22 The Merchant Of Tennis, Inc. Collapsible crate with stowable hinged lid

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1296563B (en) * 1967-09-16 1969-05-29 Ver Deutsche Metallwerke Ag Plastic box with foldable side panels
US3796342A (en) * 1972-06-05 1974-03-12 Pinckney Molded Plastics Collapsible container
DE9211696U1 (en) * 1992-08-31 1993-03-11 Stucki Kunststoffwerk Und Werkzeugbau Gmbh, 4902 Bad Salzuflen, De
DE9416831U1 (en) * 1994-10-19 1994-12-15 Walther Faltsysteme Gmbh Foldable transport and storage container

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7891491B2 (en) 2002-06-04 2011-02-22 Rehrig Pacific Company Portable storage container
US7823728B2 (en) 2005-03-04 2010-11-02 Rehrig Pacific Company Storage container with support structure for multiple levels of nesting

Also Published As

Publication number Publication date
ES2281064T3 (en) 2007-09-16
FR2871782A1 (en) 2005-12-23
DE602005000660D1 (en) 2007-04-19
FR2871782B1 (en) 2007-08-03
EP1609725A1 (en) 2005-12-28
ATE356037T1 (en) 2007-03-15
DE602005000660T2 (en) 2007-11-22

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