FR2491889A2 - LOTS OF ROLL SHINGLES OF COMPRESSIBLE MATERIALS AND METHOD OF PREPARING SUCH LOTS - Google Patents

Abstract

THE INVENTION RELATES TO A LOT OF TWO BURDENS 1, 2 OF ROLLS 3 OR PACKAGES ACCORDING TO THE MAIN PATENT. THIS LOT INCLUDES AN ASSEMBLY 8 MADE OF A SHRINKABLE PLASTIC MATERIAL, AT LEAST PART OF WHICH IS LATERALLY SIDE, ON THE ONE HAND, THE UPPER PART OF LOWER BURDEN 1 AND, ON THE OTHER HAND, THE LOWER PART OF UPPER BURDEN 2. THIS ASSEMBLY 8 IS FREIGHT AGAINST THE EXTERNAL PART OF THE BURDENS WITH WHICH IT IS IN CONTACT.

Description

The invention relates to batches of bundles of rolls of materials

  compressible. It concerns more precisely the realization of batches of bundles of the type described in the

main patent.

  It will be recalled that the object of the invention is (claim 1 of the main patent application) a burden of at least two layers of rolls or packets of a compressible material, the rolls of each layer being placed side by side and contact each other, while the rolls or bundles of two overlapping layers are

  in mutual contact by their lower or upper generatrix

  higher, this burden being characterized in that it comprises two profiled plates adjoining the end layers of rollers and two bonds bearing on the profiled plates and oriented orthogonally relative to each other. The profiled plates may be identical (claim 2), have forklift passages resulting from folding or molding the sheet material which forms the plates (claim 3).

  and marry substantially the profile of the rollers (claimed

  4). The panels according to claim 5 advantageously comprise perforations located opposite the forklift passages formed in the profiled plates (claim 6) or have, always opposite these passages, determined determined areas, which can be perforated by the forklift when it grabs the burden (claim 7), Finally, one of the bindings can be

  constituted by plastic straps (claim 8).

  In order to facilitate the handling, transport and storage of such burdens, the present addition proposes to make batches of at least two bundles of this type, stacked on top of one another and assembled

between them.

  The invention therefore relates to a batch of at least two bundles of rolls or packages according to

  one of claims 1 to 8 of the main patent, these

  bundles being superposed and at least one comprising -2- an outer cover made of a plastic material that is stretchable or retractable, characterized in that it comprises an assembly member made of a retractable plastic material, at least a part of which encloses laterally, on the one hand, the upper part of the lower burden and, on the other hand, the lower part of the upper burden, and in that said assembly member is fretted against the part

  external of said burdens with which it is in contact.

  Preferably, the assembly member encloses each of the two bundles with a height equal to at least

  the diameter of the rollers of which the burdens are made.

  In a first embodiment of the invention, the two bundles comprise an outer cover made of a stretchable or retractable plastic material and said assembly member is constituted by a belt hooped on said bundles at their contacting faces and preferably arranged symmetrically by

report & these faces.

  In another embodiment of the invention, only the lower burden comprises a cover made of a plastic material that can be stretched or retracted, and said assembly member is constituted by a cover that covers the upper face and the lateral faces of the load. superior and whose lower part forms a skirt surrounding the upper part of the lower burden and

fretted on it.

  Such batches of burdens can be made by a simple and easy to implement process, which

  is another object of the invention.

  According to this method, said bundles are stacked by placing the burden comprising a cover at the base of the stack, the assembly member is placed around the bundles in a retractable plastic material, in a position such that it overlaps laterally. the upper part of the lower burden and the lower part of the upper burden, and then said member -3- is brought to a temperature such that it encloses by retraction

said burdens.

  When the superposed bundles each comprise a cover of a shrinkable plastic material and said assembly member is constituted by a belt hooped on said bundles at their contacting faces, said belt will be brought for example to the retraction temperature desired by relative displacement of the pile of burdens and a source of hot gas, in particular by rotating the stack of bundles and the assembly belt in front of a fixed source of hot gas,

  for example, in front of a column of guns and hot air.

  In the case where only the lower burden has a cover made of a retractable or stretchable material and the assembly member is constituted by a cover covering the upper load and the lower part of which forms a skirt surrounding the upper part of the lower load. , we will bring the assembly cover & the temperature of

  retraction desired by passage in an oven.

  The accompanying drawings illustrate the implementation of the invention. In these drawings X Figures 1, 2 and 3 illustrate the different phases of realization of a batch of bundles according to the invention, in the case where the assembly member bundles is a belt in a retractable material, these FIGS. 4, 5 and 6 are views similar to FIGS. 1, 2 and 3, in the case where the assembly member is a cover in a retractable material; Figure 7 illustrates the transport by carriage of a batch of two bundles according to the invention; Figure 8 shows the joining by strapping of four batches of two burdens for transportation

in wagons, for example.

  Reference is made first to Figures 1 to 3, which

  illustrate the completion of a batch of two burdens, respec-

  1 and 2, rollers 3 of compressible material, each having, as described in the main patent, plates 4, lower and upper, which have been shaped to fit the shape of the rollers and to provide triangular passages for a fork of a handling device. Plastic strips 5 enclose the rollers perpendicular to their axis, while panels 6, made of plastic or

  cardboard, are arranged at the ends of the rollers, with-

  cutouts 7 opposite the passages provided for a handling fork. Burdens 1 and 2 are both

  sheathed with a protective cover in a retractable material.

  According to the invention, the burden 2 is first stacked on the burden 1 (Figure 1), then a belt 8 of a retractable material is placed around the stack

  burdens (Figure 2), so that it encircles

  the lower part of the upper burden 2 and the upper part of the lower burden 1. Preferably, as shown in the drawings, the belt 8 will be arranged symmetrically with respect to the contacting faces of the two bundles and will enclose each of them on a height at least the diameter of the rollers 3. The belt 8 will for example consist of a polyethylene film monoriented in a direction perpendicular to the stack, so as to enhance its resistance to stretching. This polyethylene film

  will have, for example, a thickness of 100 microns.

  The belt 8 of shrinkable material is then brought to a temperature sufficient to cause shrinkage, for example, as shown in FIG. 3, by bringing the pile of bundles in front of a ramp 9 of guns and hot air, which project the heated air. towards the stack, and by pivoting it in front of the ramp 9 (Figure 3). Under the effect of the heat, the belt 8 does not retract and comes to fray on the burdens 1 and 2, at their interface, thus making them integral * -5the one of Vautre, to form a lot, which, as will be shown below, handling is easy and can

  be delivered in this form to users.

  In FIGS. 4, 5 and 6, the batches 10 and 11 consist of bundles of rollers 12 identical to those just described, but only the lower burden is sheathed with a cover made of a retractable or stretchable material, while that the burden 11, which is stacked on

  the previous one (figure 4), does not have such a cover.

  In fact, the upper burden 11 is then capped with a cover 13 of retractable material, polyethylene for example, which covers it completely and the lower part forming a skirt falls all around the part.

  greater burden of the lower burden.

  the skirt of the cover 13 will preferably cover the lower burden 10 over a height equal to at least

  diameter of the rollers 12 (Figure 5).

  The retraction of the cover 13 is then brought about by introducing the stack of bundles into a retraction furnace 14, where it is heated by infra-red radiation ramps 15. Under the effect of heating, the cover retracts, marries the form of the higher burden and comes up against the two burdens at their level

interface (Figure 6).

  As in the previous case, we thus obtain a lot of two burdens of solidarity, which can

  thus be transported and stored more easily.

  Indeed, the mode of binding of the two burdens eliminates any slippage of the higher burden on the lower burden,

  which facilitates the stowage of the lot on transport units.

  In addition, the burdens interface is protected from

  weathering by the assembly member itself.

  We can also make analogous batches of

  overlay bundles by assembling them under a slight

  with links such as plastic straps. It is possible to handle the batch of burdens by supporting only the higher burden, to which the

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  burden is then suspended by the Assembly

  which undergoes a minimal and partially reversible extension. The user can move the batch of bundles using a forklift by inserting the teeth of it in the lower passages of the

  higher burden provided for this purpose.

  Of course, as long as the batch of burdens is not

  ready to use, it should be handled carefully.

  in order not to damage, on the one hand, the cover of which one or both burdens are coated before assembly, on the other hand, the assembly member (belt or cover) which joins them together. The use of forklift trucks would therefore be prohibited in some cases, because the fork would perforate the covers as well as

  the fasteners. This is not, however, a

  blème, since, as seen in Figure 7, to carry a lot 16 of burdens, simply use a carriage 17 comprising, in known manner, plates 18, movable relative to the other, which laterally pinch the lot and allow it to be lifted for

  move safely, without damaging its components.

  The bundle bundles in accordance with this addition may themselves be joined by horizontal or vertical links in larger bundles, for example for long-distance train transport or

storage under hangars.

  For this purpose, as shown in FIG. 8, batches of two bundles can be assembled by strapping using

  of vertical strips 19 made of plastic, of polypro-

  for example, similar to those which, in accordance with the main patent, enclose the rollers of each load perpendicular to their axis. Preferably, the strip 19 will also be arranged above the strips of individual burdens of each batch, so as to

cover.

  The strips 19 prevent the sliding of the various batches relative to each other and therefore facilitate the storage and transport over long distances of these batches. In order to bundle the batches with the strips, it will be possible to proceed in the manner described in the main patent for the securing of the bundles, that is to say, to slightly compress the batches before strapping them, and then to release the compression. In the case of FIG. 8, the batches of two bundles are also assembled by a horizontal link consisting of a plastic belt 20.

  retractable applied according to the method of the present invention.

  tion. As shown in this figure, the Applicant has thus been able to produce sets of four batches of two bundles, each burden itself comprising nine rolls of glass wool and having the characteristics described in the main patent, namely: roll diameter: 500 to 550 mm, - length: 1 600 mm, - width: (roll length): 1 200 mm, - height: 1 280 mm,

- weight: 145 kg.

  Such sets of 72 rollers have the advantage of occupying in this form a compact volume which facilitates their stowage on railroad cars and reduces

dead volumes in storage.

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Claims (13)

  1. Lot of two or more burdens (1, 2, 10, 11) of   Rolls or packages according to one of Claims 1 to 8   of the main patent, these bundles being superimposed and at least one comprising an outer cover made of a plastic material that is stretchable or retractable, characterized in that it comprises an assembly member (8, 13) made of a retractable plastic material, at least a part of which encloses laterally the upper part of the lower burden (1, 10) and the lower part of the upper load (2, 11), and that assembly is hooped against the outer portion of said   burdens with which he is in contact.   2. Lot according to claim 1, characterized in that said assembly member (8, 13) encloses each of the two bundles (1, 2, 10, 11) at a height equal to at least the diameter of the rollers ( 3, 12) of which are constituted the burdens.   3. Lot according to one of claims 1 and 2,   characterized in that said connecting member (8, 13) is made of polyethylene.   4. Lot according to claim 3, characterized in that said polyethylene is monoriented in one direction.   perpendicular to the stacking direction of burdens.   5. Lot according to one of claims 1 to 4,   characterized in that the two bundles (1, 2) comprise an outer cover of a stretch or shrink plastic material and in that said assembly member is constituted by a belt (8) hooped on said bundles   at their faces in contact.   6. Lot according to claim 5, characterized in that said belt (8) is arranged symmetrically by   relation to the faces in contact with the said burdens.   7. Batch according to one of claims 1 to 4,   characterized in that only the lower burden (10) comprises a cover of stretch or shrinkable plastic material and in that said connecting member is constituted by a cover (13) covering the upper face -9 and the lateral faces of the load upper part (11) and whose lower part forms a skirt surrounding the part   upper of the lower burden (o10) and hooped on it.   8.- Method for producing a batch of at least two   stacked bundles according to one of claims 1 to 8   of the main patent, at least one of which comprises an outer cover made of stretchable or retractable plastic material, characterized in that said bundles (1, 2;, 11) are stacked by placing at the base of the stack the burden comprising a cover, in which is placed around said bundles an assembly member (8, 13) of a retractable plastic material, in a position such that it covers laterally the upper part of the burden   (1, 10) and the lower part of the higher burden   (2, 11), and in that said member (8, 13) is brought to a temperature such that it encloses by retraction. said burdens.   9. A method according to claim 8, applied to the production of a batch of two superposed bundles (1, 2) each comprising a cover of a retractable plastic material and wherein said assembly member is constituted by a belt (8). ) said method being characterized in that said belt (8) is brought to the desired shrinkage and heat-sealing temperature by relative displacement of the pile of burdens (1, 2). ) and a source of hot gas (9).   10.- Method according to claim 9, characterized in that the stack of bundles (1, 2) provided with said belt (8) is rotated in front of a fixed source of hot gas (9).   11. A process according to claim 10, characterized in that the fixed source of hot gas comprises a column (9) hot air guns.   12. A process according to claim 8, applied to the - 10 -   producing a batch of two superposed bundles (10, 11), of which only the lower burden (10) comprises a cover made of a shrinkable or stretchable plastic material, and wherein said assembly member is constituted by a cover (13) covering the top load, the dimensions of this cover being such that it completely covers the upper load (11) and that its lower part forms a fretted skirt on the upper part of the lower load (10), this method being characterized in that bringing the assembly cover (13) to the desired retraction and heat-sealing temperature by passing through a shrink oven (14) of the stack of bundles (11, 12) sheathed with its cover (13).   13. Lot of at least two stacked bundles (1, 2, 10, 11) obtained by carrying out the process according to one of claims 8 & 12.