FR3080101A1 - SOFT SHIPPING PACK OF ENVELOPE TYPE ARTICLES WITH INFLATABLE PROTECTION DEVICE - Google Patents

Abstract

The invention relates to a flexible envelope-type shipping pouch (1), which comprises an internal pocket (2) defining a compartment (6) for receiving the envelope. an article (16), an external pocket (3) incorporating the inner bag, an opening (5) arranged on the inner and outer pockets to access the compartment, a closure system of the opening (5) comprising first means adhesives providing closed holding of said opening (5). The inner bag and the outer bag are fixed together so as to define an inflatable chamber (4) around said inner bag. The pouch comprises a duct (10) extending inside the chamber, the duct having an outlet (10b) opening into the chamber and an inlet (10a) opening on the pouch, said duct being arranged in such a way that the establishment of the closing system of the opening concurrently engenders the closure of said conduit. Figure of the abstract: Fig.1

Description

Title of the invention: FLEXIBLE PACKAGE FOR SHIPPING ENVELOPE TYPE WITH INFLATABLE PROTECTION DEVICE

Technical Field [0001] The present invention relates to the field of flexible pouches for shipping articles of the envelope type, in particular those which have an inflation system making it possible to protect against impact the articles contained in the envelope, during their expedition.

The main objective of the present invention is to implement an alternative inflation system which best preserves the inflated envelope until it arrives at the recipient.

STATE OF THE ART [0003] Flexible envelope-type shipping pouches are known which provide protection for the items shipped. Such protection is necessary for fragile items since the envelopes and, in general, packages are roughed up during their delivery to the recipients. These routes can be done by planes, trains, or road transport (truck, car or cycle).

A first implementation consists in providing a foam padding in a pocket of the envelope, said padding defining a compartment for receiving the articles to be shipped. By way of example, the patent EP2345601B1 will be cited.

A second implementation consists in providing an inflatable chamber which surrounds a compartment for receiving the articles to be dispatched. By way of example, the following patent applications or patents may be cited: US4184596A, US4262801A,

US2007053615A1, GB2545636A, GB2230509A and CA2009365A1. According to these various embodiments, the envelope has an internal pocket defining a compartment for receiving an article, an external pocket incorporating the internal pocket, an opening arranged on the internal and external pockets to access the compartment. The internal pocket and the external pocket are fixed together by their design in several sheets welded together or in a single folded sheet and welded at its edges, said internal and external pockets being arranged so as to define an inflatable chamber around said internal pocket.

In documents US4184596A, US4262801A and GB2230509A, one or more valves on the external pocket make it possible to inflate the chamber which can be made up of one or more inflatable zones around the compartment, said valves being closed by plugs. These caps are likely to be removed during shipping, the pouch then no longer providing any protection for the item which therefore risks being delivered damaged.

In documents US2007053615A1, GB2545636A and CA2009365A1, the external pocket has one or more flattened flexible valves which are crushed and closed under the effect of the inflation pressure in the chamber. In the event of poor obturation of the valve or valves, the chamber can deflate at least partially, this deflation can for example occur when the pressure in the chamber is not high enough, in the event of bad inflation.

SUMMARY OF THE INVENTION The objective of the present invention is to overcome the problems of total or partial deflation which may appear on the inflatable bags of the aforementioned prior art, during their expeditions.

To this end, the invention relates to a flexible envelope-type shipping pouch. The pocket includes an internal pocket defining an article reception compartment, an external pocket incorporating the internal pocket, an opening arranged on the internal and external pockets for accessing the compartment. The pouch comprises an opening closing system comprising first adhesive means ensuring the closed holding of said opening, so as to prevent access to the compartment. The internal pocket and the external pocket are fixed together so as to define an inflatable chamber around said internal pocket. This attachment between the inner and outer pockets can be achieved in various ways within the reach of the skilled person, for example by welding or gluing between several sheets or by using a single folded sheet and having its edges welded or glued together.

According to the invention, the pouch includes a conduit which extends inside the chamber. The conduit has an outlet which opens into the chamber and an inlet which opens onto the pocket. In other words, the outlet of the conduit communicates with the chamber so as to be able to inflate said chamber and the inlet of the conduit communicates with the ambient environment of the pouch, at least before use of the pouch, so as to be accessible by the user and to be able to inject air into said duct. In addition, the conduit is arranged so that the establishment of the closure system of the opening concomitantly closes said conduit. Closure of the duct is understood to prevent the pressurized air in the chamber from escaping through the duct, either by directly blocking the inlet of the duct or by bending the duct on itself so as to block it. .

Thus, the sender has the article to be sent in the compartment by inserting it into the internal pocket through the opening, then it inflates the chamber by blowing into the duct; the internal pocket and the external pocket deform during inflation, which allows the internal pocket to conform to the shape of the article contained in the compartment, so as to immobilize it properly. The pressure in the inflation chamber makes it possible to crush the conduit which extends into said chamber, due to its flexibility. This crushing of the duct already almost entirely limits the possibilities that the gaseous fluid - generally air - contained in the chamber can escape. Then the sender activates the first adhesive means and closes the opening, which conceals the conduit at the same time. The first adhesive means then ensure that the opening and, thus, the closed conduit are kept in the closed position, which definitively prevents any possibility of deflation of the chamber.

The system for closing the access opening to the compartment can be implemented in two ways, either by a flap present on the pocket, the first adhesive means ensuring the maintenance of the flap in the closed position of the opening, either directly by the first adhesive means which ensure that the two faces of the cover are pressed against one another, which closes the opening.

According to a first embodiment of said closure system, it comprises a flap arranged to close the opening in a folded position, so as to prevent access to the compartment. The first adhesive means are arranged to maintain the flap in the folded position. In addition, the duct is arranged so as to be closed when the flap is in the folded position and the first adhesive means are put in place. The first adhesive means then maintain the flap in its folded position and the closed duct, which definitively prevents any possibility of deflation of the chamber.

The obturation of the conduit when the flap is in its folded position can be obtained by various arrangements between the conduit and the pouch.

According to a first embodiment of the pouch provided with a flap, the inlet of the conduit opens onto the flap so that in its folded position, said flap folds the conduit on itself to pinch it and, thus, the 'seal. Thus, the obturation of the duct is obtained by bending the duct on itself when the flap is folded down.

According to a second embodiment of the pouch provided with a flap, the inlet of the conduit opens onto the external pocket in an area where the first adhesive means are located when the flap is in the folded position. Thus, the entry of the conduit leads to an external wall of the external pocket, in the area receiving the flap during its folding and gluing; the inlet of the duct is therefore trapped by the first adhesive means and the flap glued to said outer wall, which closes the inlet of the duct.

According to a second embodiment of said closure system, the first adhesive means directly close the opening, without the need for the presence of a flap. According to this implementation of the pouch, the inlet of the conduit opens onto an internal wall of the pouch. In addition, the first adhesive means are arranged opposite the internal wall so as to come to be pressed against the latter and to seal both said inlet of the conduit and said opening.

According to one embodiment of the sleeve, the conduit extends over the length of the external sleeve so that the outlet of said conduit is positioned in the third third of the chamber starting from its end located at the opening . Preferably, the outlet of the conduit is located near the lower edge of the external pocket.

According to one embodiment of the pouch, the conduit comprises a flat width, that is to say before the inflation of the chamber, between five and thirty millimeters (5 mm and 30 mm), preferably between eleven and twenty-three millimeters (11 mm and 23 mm), preferably equal to twenty millimeters (20 mm).

According to one embodiment of the pocket, the internal pocket comprises a first face and the external pocket has a first face. In addition, the conduit is implemented between the lateral edges of the internal and external pockets and a partial weld arranged between the first two faces along the said lateral edges and with a slight spacing with respect to the said lateral edges. One could envisage other variants of implementation of the conduit between the first face of the external pocket and the first face of the internal pocket. One can also provide for the implementation of the conduit between a second face of the external pocket and a second face of the internal pocket.

The implementation of the conduit directly between a face of the external pocket and a face of the internal pocket advantageously allows to generate folds in the conduit during inflation of the pouch. In fact, the inflation of the pouch has the effect of deforming the external pocket and the internal pocket by generating folds on the external surface of the pocket. These folds on the pocket seal the duct, which prevents the air in the chamber from escaping through said duct. Preferably, the length of the duct is at least half the length of the pouch, preferably at least two-thirds of the length of the pouch, so as to guarantee the presence of at least one fold on the conduit during inflation of the chamber and, thus, the closure of said conduit.

One can however provide for the implementation of the conduit between the first face and the second face of the external pocket or between the first faces and the second faces of the internal and external pockets, according to other alternative embodiments, without leaving of the scope of the invention.

According to one embodiment of the pouch, the outer pouch is made of a material chosen from polyolefins and the inner pouch is also made of a material chosen from polyolefins. This will facilitate recycling of the pouch after use.

In one embodiment, the pouch comprises anti-fraud detection means which cooperate with the first adhesive means during the establishment of the closure system of the opening. This allows you to see whether the pouch was opened or not before it was delivered to the recipient. Of course, it is possible to envisage variants of pockets without such detection means. In the embodiment with flap, the pouch comprises on its upper part before said anti-fraud detection means which cooperate with said first adhesive means in the folded position of the flap.

According to a first embodiment of the pocket, the internal pocket comprises a lower edge which is floating vis-à-vis the external pocket. According to a second embodiment of the pocket, the internal pocket comprises a lower edge which is fixed to an internal wall of the external pocket. This second embodiment has the effect, in comparison with the first embodiment, of completely immobilizing the article in the inflated chamber.

According to one embodiment of the pouch, it comprises a rigid blowing tube partially incorporated in the conduit for the inflation of the chamber, said tube being removable. This rigid tube makes it possible to inflate the chamber by simply blowing into said tube, without the need for additional inflation means of compressor type. Once the chamber is inflated, the tube is extracted, the extraction of the tube allows the conduit to collapse under pressure in said chamber, then the conduit is completely closed during the installation of the closure system, with or without Rabat. Since the tube is not pressed over the entire length of the conduit, the end of the conduit remains free vis-à-vis the end of the tube, which allows the outlet of the conduit to collapse under the effect of the pressure in the chamber when the sender stops blowing in the tube and during the extraction of said tube, thus avoiding deflation of the chamber. The tube can be prepositioned in the conduit; we can instead plan to insert the tube when using the pouch.

In one embodiment, for the ranges of width of the conduit defined above, the diameter of the rigid tube is between three and fifteen millimeters (3 mm and 15 mm), preferably between eight and eleven millimeters (8 mm and 11 mm), preferably equal to nine millimeters (9 mm). Thus, the diameter of the rigid tube is in relation to the flat width of the duct, which prevents an escape of the blown air on the sides of the duct during the inflation of the chamber and keeps the rigid tube suitably when it is prepositioned in the duct before using the pouch.

In addition, the length of the rigid tube is between half and two-thirds of the length of the pouch. This allows the rigid tube to be pushed deep enough into the duct so that air can easily enter the chamber during inflation by normally blowing into the rigid tube with the mouth.

According to an embodiment of the pouch with a flap, said flap comprises a upper part and a lower part in which the inlet of the duct is located. In addition, second temporary adhesive means are arranged on the upper part. Thanks to this configuration of the flap, the upper part of the flap can be folded over the lower part of the flap, the presence of the second temporary adhesive means making it possible to temporarily hold the upper part folded over the lower part before use. Furthermore, the rigid tube is prepositioned in the conduit. By temporary adhesive means is meant that the upper part of the flap can be disengaged from the lower part of the flap, after its installation, without any deterioration of said upper and lower parts. Thus, when the rigid tube is prepositioned in the conduit before use of the pouch, only the end of said tube projecting slightly from the entrance of said conduit, the upper part can be folded over the end of the rigid tube with the second adhesive means. which provides a provisional folded retention of said upper part on the lower part, which protects the end of the rigid tube against dirt, before use.

Brief description of the figures The characteristics and advantages of the invention will appear on reading the following description based on figures, among which:

[Fig.l] Figure 1 illustrates from the front an embodiment of a pocket with flap according to the invention;

[Fig.2] Figure 2 illustrates a rigid tube for blowing in a pocket with or without flap;

[Fig.3] Figure 3 illustrates a variant of the pouch with inflated flap and containing articles, before closing the flap;

[Fig.4] Figure 4 illustrates a variant of pocket with flap with before use;

[Fig.5] Figure 5 illustrates from the front a variant of pocket without flap;

[Fig.6] Figure 6 illustrates in side section a pocket without flap corresponding to Figure 5, inflated and before closing;

[Fig.7] Figure 7 illustrates from the side a pocket without flap corresponding to Figures 5 and 6, inflated and closed;

[Fig.8] Figure 8 illustrates in side section an alternative pocket without flap, inflated and before closing.

Detailed Description In the following description, the term pouch is used to designate the flexible shipping pouch according to the invention. In addition, the same references are used to designate the same characteristics according to the various variants of sleeves according to the invention.

With reference to Figures 1, 3 and 4, the pocket 1 - according to the various illustrated variants has an internal pocket 2 and an external pocket 3. The internal pocket 2 comprises two faces 21, 22 and the external pocket 3 comprises two faces 31, 32. Preferably, the internal pocket 2 is made of a polyethylene material, but one could choose other materials, for example polypropylene. Similarly, the outer pocket 3 is made of a polyethylene material, but one could choose other materials, for example polypropylene.

The two faces 31, 32 of the outer pocket 3 are welded together at the side edges 33, 34 of said outer pocket 3. These two faces 31, 32 can also be welded together at the lower edge 35 of the external pocket 3, when the latter is implemented from two sheets and not from a single sheet folded in half at said lower edge 35.

Similarly, the two faces 21, 22 of the internal pocket 2 are welded together at the side edges 23, 24 of said internal pocket 2. These two faces 21, 22 can also be welded together at the lower edge 25 of the internal pocket 2, when the latter is implemented from two sheets and not from a single sheet folded in half at said lower edge 25.

In FIG. 1, the first and second faces 21, 22 of the internal pocket 2 and the first and second faces 31, 32 of the external pocket 3 are also welded together at their lateral edges 23, 33, 24, 34.

In Figures 1 and 4, the upper edge 26 of the first face 21 of the inner pocket 2 is welded with the upper edge 36 of the first face 31 of the outer pocket 3. Similarly, the upper edge 27 of the second face 22 of the internal pocket 2 is welded with the upper edge 37 of the second face 32 of the external pocket 3. This makes it possible to define a chamber 4 between the internal pocket 2 and the external pocket 3, as well as an opening 5 to access a compartment 6 in the internal pocket 2. The first faces 21, 31 are longer than the second faces 22, 32 on the internal pockets 2 and external 3, which allows the implementation of a flap 7 .

In Figure 4, two welds 81, 82 are provided at a distance from the upper edges 26, 36 and the upper edges 27, 37 on the internal pockets 2 and external 3, which makes it possible to delimit the inflation chamber 4 so to keep flat, after inflation of said chamber 4, the upper part before the and the flap 7 on the pocket 1, for proper closure of the opening 5 by the flap 7.

In Figure 3, the upper edge 27 of the second face 22 of the internal pocket 2 is welded with the second face 32 of the external pocket 3 while the upper edge 37 of the second face 32 of the external pocket 3 protrudes from the upper edge 27 of the second face 22 of the internal pocket 2. This also delimits the chamber 4 in order to keep the upper part before the and the flap 7 of the pocket 1, suitably flat after inflation of the said chamber 4.

In Figure 1, a first weld 83 is provided over the width of the pocket 1, between the first face 21 of the internal pocket 2 and the first face 31 of the external pocket 3, except a small opening 9 which remains near the side edges 23, 33 of said first faces 21, 31. In addition, a second weld 84 is provided in the lengthwise direction of the pocket 1 between said first faces 21, 31, near their side edges 23, 33 This second weld 84 extends from the first weld 83 where it is positioned adjacent to the opening 9, near the lower edge 25 of the internal pocket 2 and the lower edge 35 of the external pocket 3. This makes it possible to constitute a conduit 10 preferably having a flat width, before inflation of the chamber 4, of between five and thirty millimeters (5 mm and 30 mm), preferably between eleven and twenty-three millimeters (11 mm and 23 mm), preferably d e twenty millimeters (20 mm). Preferably, the conduit 10 extends over at least two-thirds of the length of the pocket 1. The inlet 10a of the conduit 10 corresponds with the orifice 9 and the outlet 10b of said conduit 10 opens into the chamber 4.

When the flap 7 is folded over the upper part before the of the pocket 1, by folding it along a first fold line 11, the conduit 10 is also folded back on itself, which closes said conduit 10 at the level of said fold line 11.

The pocket 1 includes an anti-fraud strip 12 incorporating a system for viewing a fraudulent opening. Such anti-fraud display system are well known in the field of envelopes or sachets, in particular for the transport of valuables. The anti-fraud strip 12 is positioned in the upper part before that of the pocket 1.

The pouch 1 also includes an adhesive layer 13 temporarily coated with a protective strip 14. This adhesive layer 13 is disposed on the inner face 7a of the flap 7. When the protective strip 14 is removed and the flap 7 is in the folded position, the adhesive layer 13 rests on the anti-fraud strip 12 and on the upper part before the of the pocket 1, which keeps the opening 5 closed and the conduit 10 folded back on itself. The adhesive layer 13 ensures permanent closure of the pocket 1, the release of the flap 7 for the opening of the pocket activating the anti-fraud strip 12.

The lower edge 25 of the internal pocket 2 can remain free vis-à-vis the external pocket 3, as shown in Figure 4. We can instead fix, especially by welding 85 or by gluing, the lower edge 25 with internal wall 32a of the second face 32 of the external pocket 3, as illustrated in FIG. 3, or even with the internal wall 31a of the first face 31 of said external pocket 3. The weld 85 will partially extend on the lower edge 25 of the internal pocket 2, as shown in FIG. 1, so that the whole chamber 4 is filled correctly during inflation.

In Figure 1, the pouch 1 comprises a rigid tube 15, illustrated alone in Figure 2, which is inserted through the orifice 9, inside the conduit 10. This rigid tube 15 extends partially in the conduit 10 so as to keep the outlet 10b of said flexible conduit 10, which allows said outlet 10b to close when the chamber 4 is inflated and, thus, almost entirely prevents the air from escaping from the chamber 4 even before the complete closure of the conduit 10 obtained by the installation of the flap 7.

The diameter of the rigid tube 15 is chosen in proportion to the flat width of the conduit 10. When the width of the conduit 10 is between five and thirty millimeters (5 mm and 30 mm), the diameter of the rigid tube 15 is between three and fifteen millimeters (3 mm and 15 mm). When the width of the duct 10 is between eleven and twenty-three millimeters (11 mm and 23 mm), the diameter of the rigid tube 15 is between eight and eleven millimeters (8 mm and 11 mm). When the width of the conduit 10 is twenty millimeters (20 mm), the diameter of the rigid tube 15 is nine millimeters (9 mm). This prevents the blown air from escaping from the sides of the duct during inflation of the chamber. In addition, this makes it possible to maintain the rigid tube 15 properly when the latter is prepositioned in the conduit 10 before using the pouch; in other words, the rigid tube 15 cannot slide completely into the conduit 10 so that its end 15a always protrudes from the opening 9 and, thus, remains accessible.

In addition, the length of the rigid tube is between half and two-thirds of the length of the pouch. This allows the rigid tube 15 to be pushed sufficiently into the conduit 10 so that air can easily enter the chamber during inflation by normally blowing into the rigid tube with the mouth.

In Figure 1, the pouch 1 is designed so that the rigid tube 15 is prepositioned in the conduit 10 and so that the end 15a of said rigid tube 15 is protected against soiling before the use of the pouch 1. For this, the flap 7 is dimensioned to protrude sufficiently significantly with respect to the end 15a of the rigid tube 15 in position in the duct 10, only said end 15a projecting from the opening 9. In addition, comprises a temporary adhesive strip 17 is arranged over the width of the flap 7, near its upper end 7b, as illustrated in FIG. 1. The upper part 7c of the flap 7, located between the upper end 7b and a second line of fold 18, is folded against the lower part 7d of said flap 7, located between the first fold line 11 and the second fold line 18, the temporary adhesive strip 17 ensuring the maintenance of said upper part 7c folded e against said lower part 7d, which protects the end 15a of the rigid tube 15. When using the pocket 1, the user releases the upper part 7c of the flap to access the end 15a of the rigid tube 15 and inflate the chamber 4.

Of course, it is possible to envisage variants of pouch 1 without ensuring such protection of the end 15a of the rigid tube 7 against dirt, in which case the flap 7 may be shorter and not be fitted with the strip. temporary adhesive 17.

The articles 16 are inserted through the opening 5, in the compartment 6 of the internal pocket 2. Then the sender blows into the tube 15, which inflates the chamber 4. This inflation of the chamber 4 allows the two faces 21, 22 of the internal wall 2 to press against the article 16 and to plug the opening 5, as illustrated in FIG. 3.

Thus, article 16 is immobilized in compartment 6. The shipper then removes the rigid tube 15; the flexibility of the materials of the internal 2 and external 3 pockets allows the outlet 10b of the conduit 10 to close, as explained above, which keeps the chamber inflated while the sender removes the protective strip 14 to release the adhesive layer and folds the flap 7 against the upper part before the of the pocket 1, thus completely closing the duct 10.

Variants are possible within the scope of the invention. One can in particular provide a different arrangement of the various welds between the internal 2 and external 3 pockets to define the compartment 6, the opening 5, the chamber 4 and the conduit 10.

Alternatively, the conduit 10 may be implemented on the same principle as described above, between the second face 22 of the internal pocket 2 and the second face 32 of the external pocket 3. In this case, the orifice 9, that is to say the inlet 10a of the conduit 10, will be disposed in the upper part before the of the pocket 1 so that when the flap 7 is folded down, the adhesive layer 13 and said flap 7 cover said orifice 9, which also closes the duct 10 in the folded position of said flap 7.

In another variant, the conduit 10 may be implemented on the same principle as described above, but between the first face 31 and the second face 32 of the external pocket 3. The side edge 23 of the internal pocket 2 in this case will be offset towards the inside of the external pocket 3, beyond the position of the weld 84.

Other variants of conduits 10 can be envisaged inside the chamber 4.

The arrangement of the conduit 10 between the first face 21 of the internal pocket 2 and the first face 31 of the external pocket 3 or between the second face 22 of the internal pocket and the second face 32 of the external pocket 3, has the advantage of ensuring the formation of folds on the pocket 1 and on the duct 10 during inflation of the chamber 4. These folds on the duct 10 then naturally ensure its closure, which prevents deflation of the chamber 4 even before the fitting of the flap 7. The fitting of the flap 7 then guarantees against any possible risk of deflation of the chamber 4.

The pocket 1 will also include on at least one of its external walls 1b, the a window (not shown) for writing the address of the recipient and possibly that of the sender, in particular before the inflation of the chamber 4 .

With reference to Figures 1 to 4 and the above description, it appears that the pouch 1 comprises a closure system 100 of the opening 5 for access to the compartment 6, said closure system 100 being implemented by the flap 7 and the adhesive layer 13 temporarily coated with the protective strip 14. The establishment of the closure system 100, that is to say the folding of the flap 7 and its bonding on the upper part before the the pocket 1 by means of the adhesive layer 13, obtains the sealing of the conduit 10 which comes either from the fold of the conduit 10 on itself or from the covering of the orifice 9 by the flap 7 and the adhesive layer 13.

Figures 5 to 8 highlight variants of pockets 1 without flap, the closure system 100 of the opening 5 to access the compartment 6, however, also ensuring the closure of the conduit 10 due to the overlap of the orifice 9 by the adhesive layer 13. The general characteristics described above concerning the implementation of the pocket 1 (assembly between the internal pocket 2 and the external pocket 3, different positions and constitutions of the conduit 10, presence or absence of a anti-fraud strip 12 ...) remain applicable for these embodiments of the pocket 1 without the flap 7; these are therefore not detailed below.

With reference to Figures 5 to 7, the orifice 9 of the conduit 10 opens onto an internal wall Id of the pocket 1, at a first weld 83 provided over the width of the pocket 1, between the first face 21 of the internal pocket 2 and the first face 31 of the external pocket 3, except for a small opening 9 which remains near the lateral edges 23, 33 of said first faces 21, 31. A second weld 84, provided in the direction of the length of the pocket 1 between said first faces 21, 31, near their lateral edges 23, 33, delimits the opening 9, said second weld 84 extending from the first weld 83 to near the lower edge 25 of the internal pocket 2 and the lower edge 35 of the external pocket 3, which makes it possible to constitute the conduit 10 with its inlet 10a corresponds with the orifice 9 and its outlet 10a opening into the chamber 4. The pocket 1 comprises an adhesive film 130 including on its internal face an adhesive layer 13 which allows the fixing of the lower part 130a of said adhesive film 130 with the upper external part 32b of the second face 32 of the external pocket 3 so that said adhesive layer 13 is disposed opposite the internal wall Id of the pouch 1 and in the zone of the orifice 9, said adhesive layer 13 being temporarily coated with the protective strip 14, as shown in FIG. 6. Once the pouch 1 is inflated and the protective strip 14 removed, the adhesive layer 13 of the adhesive film 130 is pressed against the internal wall Id, as illustrated in FIG. 7, which allows the adhesive film 130 to cover the orifice 9 and closes the conduit 10, thus completely preventing deflation of the chamber 4.

The pocket 1 in Figure 8 differs slightly from that of Figures 5 to 7 in that the adhesive layer 13 is directly affixed to the inner upper part 22a of the second face 22 of the inner pocket 2, the adhesive layer 13 being temporarily coated with the protective strip 14. In this case, an additional weld 86 will be provided between the second face 22 of the internal pocket 2 and the second face 32 of the external pocket 3, at a certain distance from the upper edges 27, 37 of said second faces 22, 32, in order to be able to correctly apply the adhesive layer 13 and the protective strip 14 on the upper internal part 22a of said second face 22 of the internal pocket 2.

On these variants of the pocket 1 of Figures 5 to 8, it is possible to provide an additional tab (not shown), with an implementation somewhat comparable to the flap 7 present on the pocket 1 of Figures 1, 3 and 4, but without the need for folding or holding in the folded position, this tab being used simply for marking data or impressions, for example the postal coordinates of the recipient of the pocket 1 or marketing data.

Other implementations of pouch 1, with or without flap 7, remain conceivable without departing from the scope of the invention, in particular as regards the arrangement of the conduit 10 and its inlet 10a and as to the arrangement of the closure system 100 of the opening 5 for access to the compartment 6 (variants of arrangement of the adhesive layer 13 in the version with or without flap 7, ...).

Claims (1)

claims [Claim 1] Pouch (1) flexible envelope-type shipping, which includes an internal pocket (2) defining a compartment (6) for receiving an article (16), an external pocket (3) integrating the internal pocket, an opening ( 5) arranged on the internal and external pockets to access the compartment, a system for closing the opening (5) comprising first adhesive means (13, 14, 130) ensuring that said opening (5) is closed, the pocket internal and the external pocket being fixed together so as to define an inflatable chamber (4) around said internal pocket, said pocket (1) being characterized in that it comprises a conduit (10) extending to the inside the chamber and comprising an outlet (10b) opening into the chamber and an inlet (10a) opening onto the pocket, said duct being arranged so that the installation of the closure system of the opening concomitantly generates the obturation of said c onduit. [Claim 2] Pouch (1) according to claim 1, wherein the closure system comprises a flap (7) arranged to close the opening (5) in a folded position, the first adhesive means (13, 14) being arranged to hold the flap in the folded position, the conduit (10) being arranged so as to be closed when the flap is in the folded position and the first adhesive means are put in place. [Claim 3] Sleeve (1) according to claim 2, in which the inlet (10a) of the conduit (10) opens onto the flap (7) so that in its folded position, said flap folds the conduit over itself to close it off. . [Claim 4] Sleeve (1) according to claim 2, in which the inlet (10a) of the conduit (10) opens into a zone (la) on said sleeve where the first adhesive means (13) are located when the flap (7) is in folded position. [Claim 5] Sleeve (1) according to claim 1, in which the inlet (10a) of the duct (10) opens onto an internal wall (Id) of said sleeve, the first adhesive means (130, 13, 14) being arranged opposite. said internal wall (Id) so as to press against it and both close off said inlet (10a) and the opening (5). [Claim 6] Sleeve (1) according to any one of claims 1 to 5, in which the conduit (10) extends over the length of the sleeve so that the outlet (10b) of said conduit is positioned in the third third of the chamber (4) starting from its end located at the opening (5). [Claim 7] Sleeve (1) according to any one of claims 1 to 6, in which the duct (10) comprises a flat width of between five and thirty millimeters (5 mm and 30 mm), preferably between eleven and twenty-three millimeters (11 mm and 23 mm), preferably equal to twenty millimeters (20 mm). [Claim 8] Pouch (1) according to any one of claims 1 to 7, in which the internal pocket (2) comprises a first face (21) and the external pocket (3) comprises a first face (31), the conduit (10) being implemented between the lateral edges (23, 33) of the internal and external pockets and a partial weld (84) arranged between the two first faces (21, 31) along the said lateral edges and with a slight spacing with respect to the said edges side. [Claim 9] Pouch (1) according to any one of claims 1 to 8, in which the external pocket (3) is made of a material chosen from polyolefins and the internal pocket (2) is also made of a material chosen from polyolefins. [Claim 10] Pouch (1) according to any one of claims 1 to 9, which comprises anti-fraud detection means (12) which cooperate with the first adhesive means (13) during the establishment of the closure system of the opening. [Claim 11] Pouch (1) according to any one of claims 1 to 10, wherein the internal pocket (2) comprises a lower edge (25) which is floating vis-à-vis the external pocket (3). [Claim 12] A pocket (1) according to any one of claims 1 to 10, wherein the inner pocket (2) includes a bottom edge (25) which is attached to an inner wall (32a, 33a) of the outer pocket (3). [Claim 13] Bag (1) according to any one of claims 1 to 12, which comprises a rigid blowing tube (15) partially incorporated in the duct (10) for the inflation of the chamber (4), said tube being removable. [Claim 14] Pouch (1) according to claim 13 attached to one of claims 2 to 4, in which the flap (7) comprises an upper part (7c) and a lower part (7d) in which the entrance (10a) is located of the duct (10), second temporary adhesive means (17) being arranged on the upper part (7c), the flap (7) being configured to temporarily hold the upper part folded down on the lower part before use, the rigid tube (15 ) being prepositioned in the conduit (10). [Claim 15] Sleeve (1) according to any one of claims 13 or 14 attached to claim 7, in which the diameter of the rigid tube (15) is between three and fifteen millimeters (3 mm and 15 mm), preferably between eight and eleven millimeters (8 mm and 11 mm), preferably equal to nine millimeters (9 mm). [Claim 16] Sleeve (1) according to one of claims 13 to 15, in which the length of the rigid tube (15) is between half and two thirds of the length of the sleeve (1). 1/6