FR2475499A1 - Parallelepiped corrugated cardboard container - has reinforced corners and feet for stacking and handling by fork lift truck - Google Patents

Abstract

The container has a rectangular shape and an open top with four vertical sides and a base. The pallet stands on four reinforced corner legs. The corners of the container are filled with four beams (12) of folded corrugated cardboard, which are located through holes in the floor. The feet are enclosed in folded box beams (15) with extension pieces (18) fitting inside the container. The containers may be lifted by a fork lift truck and can be stacked by resting on the corner beams (12).

Description

 The present invention relates to a pallet box made of corrugated cardboard.

 Pallet boxes are frequently used in particular for storage, transport and presentation in large food stores. These pallet boxes are generally made of wire. metal and have the disadvantage of being very costly in terms of their production, difficult to repair when they have been impacted, since they require the intervention of a specialist, and of being costly to operate. high because it requires an empty storage room both before loading and after unloading, and an empty return for a new loading.

 However, in some cases, this type of pallet box is used to transport low density products, such as egg cartons which, given the small mass transported, would not require such strong boxes.

 The present invention aims to remedy these drawbacks by providing a pallet box made of corrugated cardboard which is perfectly suitable for the transport of low and medium density products.

 To this end, the box which it concerns comprises, fixed on the internal face of its four angles, four candles made of corrugated cardboard, the grooves of which are longitudinal, and having undergone an accordion folding in the direction of the grooves, these candles are 'extending over at least part of the height of the body, and passing through four openings formed near the corners of the bottom of the body, and projecting from the lower part thereof.

 These candles have the function of ensuring a reinforcement of the compressive strength of the body and of raising its bottom relative to the ground, the lower parts of the candles forming feet. This box can therefore be handled like a traditional pallet box, for example using an elevating device comprising forks, these can be engaged between the feet before coming to bear under the bottom of the box.

 This box has the advantage, while having good mechanical strength for low and medium density products to be of a low cost price, and to be for single use, that is to say to avoid all storage after being emptied, and all empty return for a new loading.

 According to a characteristic of the invention, the upper end of each candle is set back relative to the upper plane of the box.

 This arrangement allows the stacking of the boxes when they are superimposed, the lower end of the feet of a box resting on the upper end of the feet of the box located immediately below.

 Advantageously, the opening formed in each corner of the bottom of the box is obtained by cutting in the extensions of the two lateral faces corresponding to this corner, ensuring the provision of an extension of this in the form of an angle.

 In conditions of use of the box, this angle-shaped extension provides a protective function of the part of the corresponding candle projecting from the bottom of the box.

 In addition, the distance from which the candles protrude from the bottom of the box is greater than the height of the angle-shaped corner extensions, the difference in height being equal to the distance between the upper plane of the box and the upper ends. candles.

 As indicated above, when several boxes are superimposed, the lower ends of the candles of a box bear on the upper ends of the candles of the box located immediately below.

 As regards the extensions in the form of angles, they come for their part during this stacking on the upper edge of the box located immediately below.

According to another possibility, this box comprises footings bearing on the ground, each of which is associated with two feet, each sole having a U-shaped section whose file has a width equal to the width of the candles, and whose wings have a width equal to the distance of which the candles project from the bottom of the box, the wings having, at the level of each candle, extensions forming legs intended to be engaged in the box in the openings in the bottom of the box along each candle.

 This box allows the transport of heavier loads than a box not equipped with soles, since, in this case, the weight rests on the totality of the two soles which extend along two sides of the box.

 Insofar as the support soles are used, the candles do not need a specific blocking in the box such as by gluing or stapling, the soles achieving this locking.

 It should be noted that, when using support soles, in the superimposed position of two boxes, there is no vacuum between them on the side of the soles.

 Advantageously, the height of the wings of the sole at the level of the tabs which the latter comprises near its ends is substantially equal to twice the height of the wings in the central part, making it possible to double their thickness at this level by folding the edge of these inward.

Anyway, the invention will be well understood with the aid of the description which follows with reference to the appended schematic drawing representing, by way of nonlimiting example, an embodiment of this box
Figure 1 is a side view of this box during assembly
Figure 2 is a perspective view after mounting the bottom1 during the establishment of the first reinforcing strut
Figure 3 is a perspective view in the mounted position
Figure 4 is a perspective view of two boxes according to Figures 1 to 3 in stacked position
Figure 5 is a view during assembly of a foot reinforcement sole
Figure 6 is a perspective view from below of the body, one sole being in place and the second being being positioned.

 The box shown in the drawing is of parallelepiped shape, and has two large side faces 2 and two small side faces 3 extended by parts 4 and 5 respectively intended to form the bottom. It should be noted that, in order to have a solid bottom, the width of the extension 4 is equal to the width of the box, while the width of the extension 5 is substantially equal to half the length of the box.

Halfway up the body are provided, at each angle, two parallel horizontal cutouts 6 allowing the insertion inward of the part between them, so .i spare with the internal face of the corner of the body a tubular passage.

Each extension, respectively 4, 5, is separated from the face to which it is associated by a horizontal creasing line 8, as well as by an L-shaped cutout 9 at an angle. Two L-shaped cutouts corresponding to two adjacent extensions respectively 41 5 ensure the menngernent, in the mounted position of the body, of an angle extension 10 eii form of angle protruding from the bottom of the rail eii mounted position.

 The tubular passage delimited by the internal face of each angle and the part 7 pressed inside the box, is used for the passage of a candle 12 made from corrugated cardboard, the corrugations being longitudinal with a candle, and that -this being obtained by accordion folding.

 Each candle 12 is placed so as to project slightly below the protective angle 10 associated therewith. It should be noted that the lengths of the candles 12 are such that the distance each of which protrudes relative to the angle 10 is equal to the distance at which its upper end is set back relative to the upper edge 13 of the body .

 When two boxes are superimposed, as shown in FIG. 4, the candles 12 have the function, in addition to strengthening the compressive strength and the protection of the feet, to ensure stacking by nesting in the box located immediately in below and press on the upper end of the candles thereof.

In order to facilitate access to the products packaged in this pallet box, in particular if it is used for presentation, during the sale of the products, there are provided in each of the faces of the pre-cuts 14.

Insofar as this pallet box is intended to transport products of higher density, it is advantageous to distribute the load on a larger surface than the four feet. To this end, soles 15 are provided. Each sole 15, made of cardboard, has a U-shaped profile comprising a core 16 and two wings 17, the friend 16 being of width corresponding to that of a candle, and the height of the wings 17 corresponding to the distance between the lower end of each candle and the bottom plane.

 It is provided at the ends of the wings 17 of the lugs 18 intended to penetrate inside the box through the openings which the bottom of these has, while being in contact with the candles 12.

 As shown in Figure 5, the length of the legs 18 is substantially equal to twice the height of the wings 17, so that they can have an extension 19 folded inwardly ensuring reinforcement by doubling at this level. Insofar as the boxes are equipped with support plates 15, there is no vacuum at this level between two stacked boxes.

 As is apparent from the above, the invention brings a great improvement to the existing technique by providing a pallet box made entirely of corrugated cardboard having good resistance to compression and allowing stacking.

 It goes without saying that the invention is not limited to the sole embodiment of this pallet box, described above by way of example; on the contrary, it embraces all of its variant embodiments.

 Thus, in particular, this box could include a cover, the latter having, at its four angles, openings for the passage of the lower ends of a box located immediately above, without being removed for as much of the frame of 1 invelltion.

Claims (6)

 - CLAIMS  1. - Pallet box in corrugated cardboard, characterized in that it comprises, fixed on the internal face of its four angles, four candles made of corrugated cardboard, the grooves of which are longitudinal, and having undergone an accordion folding in the direction of grooves, these candles extending over at least part of the height of the box, and passing through four openings formed near the corners of the bottom of the box, and projecting from the lower part thereof.  2. - Pallet box according to claim 1, characterized in that the upper end of each candlestick is set back relative to the upper plane of the box.  3. - Pallet box according to any one of claims 1 and 2, characterized in that the opening, formed in each angle of the bottom of the box, is obtained by cutting in the extensions of the two lateral faces corresponding to this angle, ensuring the provision of an extension thereof in the form of an angle iron.  4. - Pallet box according to claim 3, characterized in that the distance whose candles protrude from the bottom of the box is greater than the height of the angle extensions in the form of angles, the height difference being equal to the distance between the upper plane of the body and the upper ends of the candles.  5. - Pallet box according to any one of claims t to 4, characterized in that it comprises bearing soles on the ground each of which is associated with two feet, each sole having a U-shaped section whose friend has a width equal to the width of the candles and whose wings have a width equal to the distance whose candles protrude from the bottom of the body, the wings having, at the level of each candle, extensions forming legs intended to be engaged in the crate in the openings at the bottom of it along each candle.  6. - Pallet box according to claim 5, characterized in that the height of the wings of the sole at the level of the legs which the latter comprises near its ends, is substantially equal to twice the height of the wings in the central part. , making it possible to double their thickness at this level by folding the edge of these inward.