FR2847229A1 - System for constituting self-locking tray on pallet comprises rigid frame and two crosspieces and end housings and hinged tray enabling frame to be locked on pallet and receive folded container - Google Patents

Abstract

The system makes with a rigid frame (2) and two crosspieces (3) a reversible tray which can be adapted onto a pallet (1). There are two end housings (5) and a hinged tray (6) enabling the frame to be locked on the pallet in order to receive a folded container. On the pallet deck (8) are two wedges (9) which create locations enabling the tray to be locked.

Description

The present invention relates to a device adaptable to a pallet of

  handling and allowing the constitution with the same rigid and reversible element of a container that can receive a container with short flaps folded back on itself or of a high belt surrounding the top of the container mounted in order to stiffen it and increase resistance.

  The suitable pallet includes an articulated or folding tray and a housing at each of its ends making it possible to receive and firmly hold the container or the lower flaps of the container without tools or accessories.

  More specifically, the invention relates to a rigid and reversible device which, secured to a suitable pallet, constitutes a container of low height serving for storage of a container folded back on itself Removed from the pallet and placed on the top of the container put in forms the returned container constitutes a high belt reinforcing the container and can receive if necessary a flat cover -After shipment, the container is emptied of

  its content, the high belt deposited, turned over and repositioned on the pallet as a bin allowing the storage of the folded container in order to obtain a compact, rigid, stackable assembly, transportable many times as a returnable packaging or shuttle box .

  There are several systems for receiving a folding container on

  a pallet and, for example, in a cardboard or other lid fixed upside down thereon and itself covered with another styling lid. This requires two elements, not necessarily rigid, tending to collapse during transport and storage thereby limiting their duration of use.

  In addition, without a holding device integrated into the pallet, these covers are fixed by stapling or gluing to the pallet, which requires tear-off work when sorting the different materials before recycling.

  There is another system consisting of a pallet and two molded rigid plastic shells, nestable bottom and lid, with a cardboard belt folded back on itself, this system is limited each time a new dimension is necessary and its costs do not allow the vast majority of users to acquire it. Another system consists in fixing with the aid of staples one or two cardboard plates, one with two lateral folds on the deck of a pallet so that it can be folded vertically and then folded down on the

  bottom flaps of a container to hold it in place.

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  However, the fact that the two parts are folding does not allow the container to be maintained in a fixed housing for its pre-positioning on the pallet in order to facilitate the positioning of the second flap under the cardboard holding plate, the two parts of which must be lifted together for this operation, which generally requires two people.

  The object of the present invention is to remedy the known drawbacks by proposing a rigid device having a bin function which can be stowed without accessories, with a single person, on a suitable pallet and, by reversibility, be used as a rigid reinforcement belt on the top of the cunt

  content blocked on the pallet and receive a flat cover if necessary.

  On the other hand, innovation makes it possible to optimize the recycling operations of the different components of this box - pallet which separate without unclogging or tearing or cutting and allow their sorting and classification by materials which meets the general guidelines on the plan recovery15 and limitation of the volume of packaging materials lost through the use of pallet boxes which, due to their technical and economic design, can make several trips or rotations. According to the invention, the rigid and reversible belt having the function of a container or a reinforcement belt is composed of at least four sides of variable heights,

  assembled together on edges in order to produce a square parallelepiped frame on which, at each end are fixed flat two crosspieces the width of the frame Each crosspiece is machined on its internal face so as to produce a rebate intended for the establishment of the cover In the case of a rigid plastic belt, this may be molded or injected or thermoformed. For a metal belt it will be welded.

  More specifically, the rigid belt is made of sawn wood, plywood or other wood derivatives or molded cellulose or very rigid cardboard. The pallet intended to receive the rigid belt comprises on the high crosspieces a tray of the same composite material. a flat, fixed part, representing at least half of the surface of the pallet and a laterally articulated part, foldable at 1800, covering the rest of the surface. At each end of the pallet the upper crosspieces are nailed back so create a housing under the tray to insert the crossbars of the rigid belt or the short flaps of a

  cardboard container or extruded polypropylene or other.

  - 3 The lifting part of the tray, once folded down, firmly holds either the rigid belt or the container on the pallet. After use, the reverse operations allow the belt or the container to be released. According to these characteristics, the invention allows industrial manufacture and, according to an exemplary embodiment and with reference to the accompanying drawings, a device according to the invention comprises for a pallet container according to Figure 1 page 1/3 a pallet (1) equipped with a container (2) made up of four sides and two lateral crosspieces (3) in which rests a folded container (4). According to Figure 2 page 1/3, after removing the container from the tray, the crossbars of the frame (3) constituting the tray came out of the housings (5) at the ends of the pallet by raising the articulated part (6) produced on the pallet tray (7). On the pallet deck (8) at least two crosspieces or two wedges (9), nailed back, created the locations allowing the tray (2) to be blocked on the latter. Figure 3 page 2/3 after removing the container, the two lower lateral flaps of the container (10) are positioned in the housings (5) previously occupied by the cross members of the container and held under the articulated part (6). 4 page 2/3 the reversible container (2) is turned over to be positioned on the top of the container (4) and surround it after it has been secured to the pallet According to Figure (5) page 3/3 we see that the inverted container (2) perfectly encloses the top of the container (4) by stiffening. In the case of necessity of closing the container and according to the same Figure a plate of rigid material (11) with or without tabs (15) is placed flat on the container or slid in the

  rebates (14) made under the crossmembers (3) of the belt tray (2).

  In Figure 6 page 3/3 we notice that the crossbars (3) of the reinforcement belt constitute an essential support for receiving the soles (16) of another stacked pallet box (17) which represents another element of innovation.

  We therefore produced according to the invention a multifunctional device of size and

  variable quality allowing with the same reversible element to obtain on a suitable pallet: a self-locking tray or a reinforcement belt constituting stacking support and cover frame.

  The invention applies more particularly in the industry for inter-factory shuttles and rotations with subcontractors but finds its application more generally for transport and storage packaging on pallets The use of '' a container made of regenerated plastic, for example extruded polypropylene, allows the same device for use outdoors or in a humid environment. This is how the materials used in the manufacturing process can be

  any although they must respect in the spirit of the invention the qualities of resistance necessary according to the claims which follow.

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Claims (3)

  1) Device for making according to Figure 2 page 1/3 with a rigid frame (2) and two crosspieces (3) a reversible container adaptable on a pallet (1) comprising two housings (5) at its ends on the width side and an articulated plate (6) making it possible to block this frame (2) on the pallet in order to receive a folding container folded back on itself (4). By reverse manipulation by inverting this frame, it constitutes according to Figure 5 page 3/3 a reinforcement belt (2), a stacking support and a frame for the lid (11) of the container (4) whose lower flaps (10) have taken the place of the crosspieces of the reversible container under the articulated plate of the pallet ( 7) to be kept blocked. 2) Frame according to claim let according to Figure 2 page 1/3 made in   sawn wood, derived from molded or un molded wood, plastic or other material and characterized in that it consists of at least four blades (12) assembled on edges with two lateral crossbars fixed flat (3) on the same side and provided with rebates (14) constituting slides for a cover.   On the pallet with two or four entries, a rigid plate comprises a laterally articulated part (6) thanks to a strip of flexible material (13) fixed astride the mobile part and the fixed part (7) and that, at each end of the pallet and over its entire width, under the tray, the pallet apron is nailed back so as to create two housings (5) which can receive the crosspieces (3) of the frame. In use, the movable part (6) is folded over the fixed part of the plate (7) of the pallet and a crosspiece (3) of the frame is inserted in its lateral housing (5) under the fixed part of the plate   (7). According to Figure (1) page 1/3 the articulated part of the plate is folded down (6) to cover the second crosspiece (3) of the frame and block it on the pallet.   3) Device according to claim 1 and according to Figure 1 page 1/3 characterized in that the frame with its two crosspieces (3) locked on the pallet constitutes a container integral (2) with the pallet and can then receive a folded container on itself (4) or other and becomes a compact and resistant kit. According to the same claim and according to Figure 5 page 3/3 the tray-frame removed from the pallet, returned is positioned as a high reinforcement belt   (2) on the container and also constitutes a rigid stacking support and a frame for a flat cover (11) fitted into the two lateral slides (14) of the crosspieces (3).