EP4180707A1 - Device and method for protecting a container with a bag provided with a heat-shrinkable sleeve - Google Patents

Device and method for protecting a container with a bag provided with a heat-shrinkable sleeve Download PDF

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Publication number
EP4180707A1
EP4180707A1 EP22203990.1A EP22203990A EP4180707A1 EP 4180707 A1 EP4180707 A1 EP 4180707A1 EP 22203990 A EP22203990 A EP 22203990A EP 4180707 A1 EP4180707 A1 EP 4180707A1
Authority
EP
European Patent Office
Prior art keywords
heat
bag
shrinkable sleeve
equipment
container
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.)
Pending
Application number
EP22203990.1A
Other languages
German (de)
French (fr)
Inventor
Jean-Luc Allegre
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Decomatic SA
Original Assignee
Decomatic SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Decomatic SA filed Critical Decomatic SA
Publication of EP4180707A1 publication Critical patent/EP4180707A1/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/03—Orientation
    • F17C2201/032—Orientation with substantially vertical main axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/054—Size medium (>1 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/058—Size portable (<30 l)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0308—Protective caps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0329—Valves manually actuated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0332—Safety valves or pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/011—Oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/014—Nitrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/016—Noble gases (Ar, Kr, Xe)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/035—Propane butane, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/036—Very high pressure (>80 bar)

Definitions

  • the present invention relates to the technical field of packaging in the general sense and it aims more specifically, the protection by packaging, of the equipment of a container in the general sense, this protection being understood as the demonstration of an attempt use or access to equipment or as a barrier to the external environment.
  • the object of the invention finds a particularly advantageous application for protecting the equipment of gas cylinders in the general sense, that is to say containers or tanks under pressure, of cylindrical shape, more or less elongated, designed to contain a gas at a pressure significantly different from ambient pressure.
  • these gas cylinders are intended to contain oxygen, argon, nitrogen, propane or butane.
  • the object of the invention finds other applications for protecting the equipment of containers of different types such as tanks, vats or pipes.
  • each gas cylinder is provided at its top with various equipment for its use such as a cap, a manually operated shutter, a fitting for connecting a pipe, a safety cap for the connection and a pressure indicator for example.
  • the cap of each gas cylinder has the particularity of covering a set of equipment to protect them. This cap has openings to allow access to this set of equipment and, if necessary, the gripping of the gas cylinder.
  • the patent FR 3 083 783 describes a protection device for equipment of a container comprising a flexible plastic bag having a generally cylindrical shape with a passage section configured so that the bag can be slipped over the equipment.
  • the bag has a closed bottom and, on the contrary, an access opening to the internal volume of the bag through which the bag is threaded onto the equipment.
  • the bag is provided with an adhesive label allowing, after removal of its protective strip, to enclose the equipment.
  • Such a protection device is satisfactory in practice. However, for certain applications, the need appears to be able to automate the operation of installing the protection device on the equipment.
  • the object of the invention therefore aims to satisfy this need by proposing a protective device for at least one item of equipment of a container, designed to guarantee the inviolability of the equipment of these containers and to protect in particular from dust and moisture, the various equipment of these containers while being simple to implement, manual or automated if necessary.
  • the protection device makes it possible, by localized heating on the heat-shrinkable sleeve, to effectively protect equipment by the bag which can be easily removed.
  • the protection device comprises a system for fixing the heat-shrinkable sleeve on the bag to maintain the heat-shrinkable sleeve at a distance from the access opening and substantially parallel to the access opening. .
  • the heat-shrinkable sleeve has a shrinkage rate of between 50% and 85%.
  • the heat-shrinkable sleeve has a height of between 2 and 6 cm.
  • the system for fixing the heat-shrinkable sleeve to the bag is an adhesive or staple fixing system.
  • the heat-shrinkable sleeve and/or the bag is provided with an easy-opening system to facilitate, when the heat-shrinkable sleeve is in its retracted state, the removal of the protection device with respect to the container .
  • Another object of the invention is to provide a container provided with at least one item of equipment covered by a protective device according to the invention.
  • the heat-shrinkable sleeve fitted to the container is shrunk so that the bag has a necking section smaller than the section of the equipment.
  • the heating of the heat-shrinkable sleeve is ensured locally over all or part of the periphery of the heat-shrinkable sleeve.
  • the heating of the heat-shrinkable sleeve is ensured to ensure shrinkage of the heat-shrinkable sleeve according to a shrinkage rate of between 50% and 85%.
  • the heating of the heat-shrinkable sleeve is ensured by a manual heating tool.
  • the heating of the heat-shrinkable sleeve is provided by a heating station up to which is moved by a conveying system, the container whose equipment is provided with the protection device.
  • the object of the invention relates to a protection device 1 for at least one piece of equipment 2, 2a, 2b, etc. of a container 3 in the general sense.
  • the drawings illustrate by way of illustration an example of a container such as a gas bottle 3 but it is clear that the object of the invention can be adapted to all types of containers such as tanks, cisterns, pipes or pipes and which may contain different products such as liquids, gases or fluids.
  • the protection device 1 is intended to protect one or more items of equipment 2, 2a, 2b, etc. of a container, adapted for the use of the container.
  • this gas cylinder comprises, as equipment, a cap 2 covering a set of equipment such as a safety cap 2a and a connector 2b.
  • this set of equipment is integrated inside the cap 2, the rest of the description will refer only to this cap.
  • the protection device protects this cap 2 but also all the equipment that it contains.
  • all the characteristics of the protection device described in relation to cap 2 are applicable to any equipment other than a cap.
  • the cap 2 is in the form of a tubular body having an upper end 5 and a lower end 6.
  • the measurement between the upper end 5 and the lower end 6 corresponds to the height of the cap 2.
  • the cap 2 is also provided with openings 7 arranged in the upper face and/or on the peripheral wall of the cap so as to allow on the one hand access to the various equipment 2a, 2b, ... and on the other hand gripping this cap for handling the bottle.
  • the gas bottle 3 has, below the cap 2, a neck 3a whose section is smaller than the section of the cap. This neck 3a is therefore located between the cap and the gas cylinder.
  • the protective device 1 comprises a flexible plastic bag 10 and at least one heat-shrinkable sleeve 11.
  • the bag 10 is made of a flexible plastic material which is preferably recyclable, such as polyethylene.
  • the bag 10 comprises two superposed faces 12, 13 connected at a closed bottom 14, produced by a fold or a weld. These faces 12, 13 are assembled by welding along two longitudinal edges 15 taking into account the elongated shape of the bag.
  • the bag 10 is made of a transparent or translucent plastic material for reading through its faces.
  • the bag 10 comprises two superimposed sheets of flexible material welded together along the two longitudinal edges 15 and a transverse edge forming the bottom 14 of the bag.
  • the bag 10 is made of a sheet of flexible plastic material folded or folded along a transverse edge forming the bottom 14 of the bag, the two longitudinal edges 15 being closed by a weld.
  • the bag 10 has, opposite its closed bottom 14, a so-called threading opening 16 giving access to the internal volume of the bag.
  • a bag 10 can be shaped to have a generally cylindrical or tubular shape.
  • the bottom 14 of the bag can be provided with a bellows if necessary.
  • the faces 12, 13 of the bag are offset from one another at the level of the opening 16 to facilitate its opening or its shaping.
  • the transverse edge of one face delimiting the opening 16 is set back from the transverse edge of the other face delimiting the opening 16.
  • the bag 10 is intended to be slipped through its opening 16, on the cap 2 of the gas bottle.
  • the bag 10 has a free passage section greater than the section of the hat to allow it to be slipped over said hat.
  • This free passage section extends from the opening 16 and towards the bottom 14 over a height at least equal to the height of the cap as will be explained in the following description.
  • the bag 10 is threaded through its opening 16 so that the bottom 14 of the bag bears against the upper face 5 of the cap.
  • the bag 10 is threaded through its opening 16 so as to bear against the upper face 5 of the cap, by a transverse weld 15a arranged between the two superimposed faces 12, 13, at a distance from the closed bottom 14.
  • the bag 10 comprises a transverse weld 15a in two aligned parts, each extending from a longitudinal edge 15 to reduce the section of passage of the bag to a value lower than the section of the hat.
  • the bag 10 is threaded on the cap so as to come into abutment by its transverse weld 15a, on the upper part 5 of the cap 2.
  • the presence of the transverse weld 15a automatically gives the degree of depression of the bag on the hat .
  • the weld 15a is arranged at a distance from the bottom 14 of the bag to leave a part 10a to be rolled up inside the cap to allow it to be gripped from the bottom of the bag.
  • the bag After mounting the bag on the cap 2, the bag has, from its bottom 14 and up to the level of the upper part 5 of the cap, this part to turn up 10a.
  • This part to turn up 10a is intended to be engaged, by pressing on the bottom 14, inside the cap and more precisely from the opening 7 arranged in the upper face of the cap. The engagement of the bag 10 inside the cap 2 allows the gripping of the gas cylinder by its cap without damaging the bag.
  • the protection device 1 comprises a bracelet or a heat-shrinkable sleeve 11 positioned to surround the bag.
  • This heat-shrinkable sleeve 11 is capable of occupying either a non-shrinkable state to enable it to be slipped around the hat 2 or, after having been subjected to heating, a retracted state to enclose the bag around the hat 2.
  • This heat-shrinkable sleeve 11 has the shape of a loop, the length or perimeter of which delimits a passage section through which the hat 2 can be put on.
  • the heat-shrink sleeve 11 has, in its non-shrink state, a passage section to be slipped around the cap 2.
  • the heat-shrink sleeve 11 has a passage section greater than the section of the cap 2 to allow to be put on said hat.
  • the sleeve heat shrink 11 can thus be fitted around the cap 2 to be positioned below the cap 2, at the level of the neck 3a of the gas cylinder.
  • the heat-shrinkable sleeve 11 has a larger passage section than the section of the bag 10 since the heat-shrinkable sleeve 11 surrounds the bag 10 without tightening it. It should be noted that it can be provided that the heat-shrinkable sleeve 11 has a lower passage section than the section of the bag 10 by tightening the bag 10. In such a case, the heat-shrinkable sleeve 11 always has a passage section higher than the section of the hat 2 to allow it to be slipped on said hat.
  • the heat-shrinkable sleeve 11 has, in its retracted state, a reduced passage section compared to the passage section of its non-retracted state.
  • the heat-shrinkable sleeve 11 thus has, in its retracted state, a so-called bag-throttling passage section with a view to enclosing the bag around the cap 2.
  • the heat-shrinkable sleeve 11 has a shrinkage rate of between 50% and 85%.
  • the perimeter of the heat-shrink sleeve 11 decreases between 50% and 85%, between its non-shrink state and its retracted state. This rate of retraction makes it possible to obtain effective tightening of the bag around the cap 2.
  • the perimeter of the heat-shrinkable sleeve 11 is 400 mm in its non-retracted state and 330 mm in its retracted state.
  • the heat-shrinkable sleeve 11 is made in any suitable way.
  • the heat-shrinkable sleeve 11 is made from a heat-shrinkable film whose two ends are fixed by a weld 11a to form a loop.
  • the heat-shrinkable film used is for example polyethylene terephthalate (PET) or polyvinyl chloride (PVC).
  • PET polyethylene terephthalate
  • PVC polyvinyl chloride
  • the heat-shrinkable sleeve 11 has a height of between 2 and 6 cm. This height is limited, thus allowing localized heating that does not impact the environment of the heat-shrinkable sleeve.
  • the protection device 1 comprises a system 20 for fixing the heat-shrinkable sleeve 11 on the bag 10 to hold the heat-shrinkable sleeve 11 at a distance from the access opening 16 and substantially parallel to the access opening.
  • This fixing system 20 ensures the fixing of the heat-shrinkable sleeve 11 on the bag 10 in a position such that when the bag 10 is fitted around the cap 2, the heat-shrinkable sleeve 11 is located at the level of the neck 3a of the gas cylinder. .
  • the assembly of the heat-shrinkable sleeve 11 with the bag 10 also makes it possible to facilitate the operations of manipulation and installation of the protection device 1 on the hat 2.
  • the assembly of the heat-shrinkable sleeve 11 with the bag 10 allows pre-positioning of the heat-shrinkable sleeve 11 in its final position when the bag 3 is threaded onto the cap 2.
  • the bag 10 is first threaded around the cap 2 then the heat-shrinkable sleeve 11 is threaded around the bag 10 and maintained in its final position, by any appropriate means during the operation of heat shrinkage.
  • the heat-shrinkable sleeve 11 can be held in place, thanks to its friction with the bag 10 or using a holding tool.
  • the fastening system 20 of the heat-shrinkable sleeve 11 on the bag 10 is made in any appropriate manner.
  • the fastening system 20 is an adhesive fastening system produced by adhesive pads.
  • the fixing system 20 can be made differently, for example, by staples, by one or more fins presented by the bag and serving to block the heat-shrinkable sleeve 11 or by the friction between the bag 10 and the heat-shrinkable sleeve 11.
  • the heat-shrinkable sleeve 11 and/or the bag 10 is provided with an easy opening system 11c, 10b to facilitate, when the heat-shrinkable sleeve is in its retracted state, the removal of the protective device from the container.
  • This system easy opening allows the bag 10 to be removed and access to the various equipment 2, 2a, 2b.
  • the heat-shrinkable sleeve 11 is provided with at least one pre-cut 11c to facilitate the opening of the heat-shrinkable sleeve during the operation of removing the bag in order to access the various equipment 2, 2a, 2b.
  • the heat-shrinkable sleeve 11 is provided with two pre-cuts 11c made for example on either side of the weld 11a over the entire width of the heat-shrinkable sleeve.
  • the bag 10 also has from its opening 16, at least one pre-cut or slot 10b to facilitate the opening of the bag during the operation of removing the bag in order to access the various equipment 2, 2a, 2b.
  • the slot or the pre-cut 10b is arranged in the middle zone between the longitudinal edges 15, substantially parallel to these edges, and from the opening 16 over a limited length less than that separating the heat-shrinkable sleeve 11 from the opening 16.
  • the protective device 1 has dimensions adapted to the dimensions of the hat 2 to be covered.
  • the bag 10 of the protective device is threaded around the cap 2 from its opening 16 ( figure 2 ).
  • the heat-shrinkable sleeve 11 is also threaded around the hat 2 surrounding the bag 10.
  • the heat-shrinkable sleeve 11 is positioned to be located below the hat 2, that is to say at the level of the neck 3a between the hat 2 and container 3.
  • the fitting of the bag 10 on the cap 2 automatically leads to the correct positioning of the heat-shrinkable sleeve 11 at the level of the neck 3a ( picture 3 ).
  • the bag 10 is threaded onto the cap 2 until it comes into abutment on the upper end of the cap 2, by its closed bottom 14 or its transverse weld 15a. In this stop position, the heat-shrinkable sleeve 11 surrounds the neck 3a.
  • the method then consists in ensuring the heating of the shrink sleeve 11 to ensure the constriction of the bag 10 so that its section is smaller than the section of the cap 2.
  • the shrink sleeve 11 tightens the bag 10 by creating folds P.
  • the retractable sleeve 11 In its retracted state ( figure 4 ), the retractable sleeve 11 has a constriction section lower than the section of the cap 2 ensuring the blocking of the bag 10 on the cap 2.
  • the heating of the heat-shrinkable sleeve 11 is carried out locally over all or part of the periphery of the heat-shrinkable sleeve.
  • the localized heating of the heat-shrinkable sleeve 11 allows the bag to retain its flexibility in particular while not impacting the environment of the heat-shrinkable sleeve.
  • Heating of the heat-shrinkable sleeve 11 is carried out to ensure shrinkage of the shrinkable sleeve according to a shrinkage rate of between 50% and 85%. The heating is thus carried out so that the bag 10 is fixed to the cap 2. It should be noted that only the part of the bag 10 located inside the heat-shrinkable sleeve 11 is tightened. The bag 10 thus covers the cap 2 without being heat-shrink.
  • the heat-shrink sleeve 11 is heated in any appropriate manner. According to an exemplary implementation, the heating of the heat-shrinkable sleeve 11 is ensured by a manual heating tool. For example, the heating of the heat-shrinkable sleeve 11 is ensured by a hot air gun.
  • the protection device 1 is automatically fixed on the gas cylinders 3.
  • the heating of the heat-shrinkable sleeve 11 is ensured by a heating station up to which is moved by a conveying system, the gas cylinder 3 whose cap 2 is provided with the protective device 1 according to the invention.
  • the gas cylinders 3 are moved from upstream to downstream of the heating station, by a conveying system such as a linear conveyor.
  • the heating station is made for example in the form of a tunnel provided with localized heating sources located on either side on the other side of the path of movement of the gas cylinders.
  • each heat-shrinkable sleeve 11 retracts under the effect of the heating, making it possible to obtain, at the exit from the heating station, an automatic fixing of the bags on gas cylinders. It should be noted that provision may be made, upstream of the heating station, to also automate the operation of fitting the bag 10 onto the cap 2.
  • the object of the invention thus makes it possible to obtain a container 3 whose equipment 2 is covered by a bag 10 of a protective device 1 in accordance with the invention.
  • the heat-shrinkable sleeve 11 surrounding the bag 10 is shrunk so that the bag has a neck section smaller than the section of the equipment 2.
  • the bag 10 can be easily and safely removed from the bottle 3 by applying a manual tearing force, without the need for the use of cutting instruments.

Abstract

L'objet de l'invention concerne un dispositif de protection pour au moins un équipement (2) d'un récipient (3), comportant :- un sac (10) en matière plastique souple présentant une forme générale cylindrique avec une section de passage configurée afin que le sac puisse être enfilé sur l'équipement- un manchon thermo rétractable (11) positionné pour entourer le sac en présentant dans un état non rétracté, une section de passage pour être enfilé sur l'équipement, et dans un état rétracté, une section de passage réduite d'étranglement du sac en vue d'enserrer le sac autour de l'équipement.The object of the invention relates to a protective device for at least one item of equipment (2) of a container (3), comprising:- a bag (10) made of flexible plastic material having a generally cylindrical shape with a configured so that the bag can be slipped over the equipment- a heat-shrinkable sleeve (11) positioned to surround the bag having in an unshrunk state, a passage section to be slipped over the equipment, and in a retracted state , a reduced passage section for constricting the bag in order to enclose the bag around the equipment.

Description

Domaine TechniqueTechnical area

La présente invention concerne le domaine technique de l'emballage au sens général et elle vise plus précisément, la protection par un emballage, des équipements d'un récipient au sens général, cette protection s'entendant comme la mise en évidence d'une tentative d'utilisation ou d'accès aux équipements ou comme une barrière vis-à-vis de l'environnement extérieur.The present invention relates to the technical field of packaging in the general sense and it aims more specifically, the protection by packaging, of the equipment of a container in the general sense, this protection being understood as the demonstration of an attempt use or access to equipment or as a barrier to the external environment.

L'objet de l'invention trouve une application particulièrement avantageuse pour protéger les équipements des bouteilles de gaz au sens général c'est-à-dire des récipients ou réservoirs sous pression, de forme cylindrique, plus ou moins allongés, conçus pour contenir un gaz à une pression nettement différente de la pression ambiante. Par exemple, ces bouteilles de gaz sont destinées à contenir de l'oxygène, de l'argon, de l'azote, du propane ou du butane.The object of the invention finds a particularly advantageous application for protecting the equipment of gas cylinders in the general sense, that is to say containers or tanks under pressure, of cylindrical shape, more or less elongated, designed to contain a gas at a pressure significantly different from ambient pressure. For example, these gas cylinders are intended to contain oxygen, argon, nitrogen, propane or butane.

L'objet de l'invention trouve d'autres applications pour protéger les équipements de récipients de types différents tels que des citernes, des cuves ou des canalisations.The object of the invention finds other applications for protecting the equipment of containers of different types such as tanks, vats or pipes.

Technique antérieurePrior technique

Dans le domaine d'application des bouteilles de gaz, chaque bouteille de gaz est pourvue à son sommet, de divers équipements pour son utilisation tels qu'un chapeau, un obturateur à commande manuelle, un raccord pour la connexion d'un tuyau, un bouchon de sécurité pour le raccord et un indicateur de pression par exemple. Le chapeau de chaque bouteille de gaz présente la particularité de venir coiffer un ensemble d'équipements pour les protéger. Ce chapeau présente des ouvertures pour permettre l'accès à cet ensemble d'équipements et si besoin la préhension de la bouteille de gaz.In the field of application of gas cylinders, each gas cylinder is provided at its top with various equipment for its use such as a cap, a manually operated shutter, a fitting for connecting a pipe, a safety cap for the connection and a pressure indicator for example. The cap of each gas cylinder has the particularity of covering a set of equipment to protect them. This cap has openings to allow access to this set of equipment and, if necessary, the gripping of the gas cylinder.

Les divers équipements des bouteilles de gaz sont à protéger notamment de la poussière et de l'humidité. De plus, l'accès à certains équipements est à protéger pour garantir l'inutilisation du contenu de ces récipients. Typiquement, ces bouteilles sont équipées d'un sceau de garantie afin de garantir leur inviolabilité ou leur inutilisation.The various equipment of the gas cylinders must be protected in particular from dust and humidity. In addition, access to certain equipment is at protect to ensure that the contents of these containers are not used. Typically, these bottles are equipped with a guarantee seal in order to guarantee their inviolability or their non-use.

Pour pouvoir montrer une tentative d'utilisation, il est connu d'utiliser des bouchons en matière plastique placés sur les raccords. Dans l'état de la technique, il est également connu d'utiliser un manchon en matière plastique thermo rétractable venant coiffer l'ensemble des équipements de la bouteille comme décrit par exemple par le brevet US 6 123 187 . Ce manchon thermo rétractable qui présente l'avantage de protéger correctement l'ensemble des équipements s'avère en pratique difficile et long à mettre en place. De plus, une fois rétracté, ce manchon est rigide, coupant et compliqué à retirer. Enfin, ce manchon thermo rétractable ne peut pas être monté sur les bouteilles de gaz ne pouvant pas être chauffées car la mise en place d'un manchon thermo rétractable nécessite le recours à une source de chaleur.To be able to show an attempt at use, it is known to use plastic plugs placed on the fittings. In the state of the art, it is also known to use a heat-shrinkable plastic sleeve covering all the equipment of the bottle as described for example by the patent US 6,123,187 . This heat-shrinkable sleeve, which has the advantage of correctly protecting all the equipment, is in practice difficult and time-consuming to put in place. In addition, once retracted, this sleeve is rigid, sharp and complicated to remove. Finally, this heat-shrinkable sleeve cannot be mounted on gas cylinders that cannot be heated because fitting a heat-shrinkable sleeve requires the use of a heat source.

Le brevet FR 3 083 783 décrit un dispositif de protection pour un équipement d'un récipient comportant un sac en matière plastique souple présentant une forme générale cylindrique avec une section de passage configurée afin que le sac puisse être enfilé sur l'équipement. Le sac présente un fond fermé et à l'opposé, une ouverture d'accès au volume interne du sac par laquelle le sac est enfilé sur l'équipement. Le sac est pourvu d'une étiquette adhésive permettant, après retrait de sa bande de protection, d'enserrer l'équipement. Un tel dispositif de protection donne satisfaction en pratique. Cependant, pour certaines applications, il apparait le besoin de pouvoir automatiser l'opération de mise en place du dispositif de protection sur l'équipement.The patent FR 3 083 783 describes a protection device for equipment of a container comprising a flexible plastic bag having a generally cylindrical shape with a passage section configured so that the bag can be slipped over the equipment. The bag has a closed bottom and, on the contrary, an access opening to the internal volume of the bag through which the bag is threaded onto the equipment. The bag is provided with an adhesive label allowing, after removal of its protective strip, to enclose the equipment. Such a protection device is satisfactory in practice. However, for certain applications, the need appears to be able to automate the operation of installing the protection device on the equipment.

L'analyse de l'état de la technique conduit à constater qu'il apparait le besoin de disposer d'une solution simple à mettre en œuvre pour garantir l'inviolabilité des équipements de récipients et pour protéger notamment de la poussière et de l'humidité, les divers équipements des récipients, cette solution de protection pouvant par ailleurs si besoin être mise en œuvre de manière automatisée.The analysis of the state of the art leads to the observation that there appears to be a need for a solution that is simple to implement to guarantee the inviolability of receptacle equipment and to protect in particular from dust and humidity, the various equipment of the containers, this protection solution can also be implemented automatically if necessary.

Exposé de l'inventionDisclosure of Invention

L'objet de l'invention vise donc à satisfaire ce besoin en proposant un dispositif de protection pour au moins un équipement d'un récipient, conçu pour garantir l'inviolabilité des équipements de ces récipients et pour protéger notamment de la poussière et de l'humidité, les divers équipements de ces récipients tout en étant de mise en œuvre simple, manuelle ou automatisée si besoin.The object of the invention therefore aims to satisfy this need by proposing a protective device for at least one item of equipment of a container, designed to guarantee the inviolability of the equipment of these containers and to protect in particular from dust and moisture, the various equipment of these containers while being simple to implement, manual or automated if necessary.

L'objet de l'invention vise donc à satisfaire ce besoin en proposant un dispositif de protection comportant :

  • un sac en matière plastique souple présentant une forme générale cylindrique avec une section de passage configurée afin que le sac puisse être enfilé sur l'équipement, le sac présentant un fond fermé et à l'opposé, une ouverture d'accès au volume interne du sac par laquelle le sac est enfilé sur ledit équipement,
  • un manchon thermo rétractable positionné pour entourer le sac en présentant dans un état non rétracté, une section de passage pour être enfilé sur l'équipement, et dans un état rétracté, une section de passage réduite d'étranglement du sac en vue d'enserrer le sac autour de l'équipement.
The object of the invention therefore aims to satisfy this need by proposing a protection device comprising:
  • a flexible plastic bag having a generally cylindrical shape with a passage section configured so that the bag can be slipped over the equipment, the bag having a closed bottom and, on the contrary, an access opening to the internal volume of the bag by which the bag is threaded onto said equipment,
  • a heat-shrinkable sleeve positioned to surround the bag by having, in an unretracted state, a passage section to be put on the equipment, and in a retracted state, a reduced passage section for constricting the bag in order to enclose the bag around the equipment.

Le dispositif de protection permet, par un chauffage localisé sur le manchon thermo rétractable, de protéger efficacement un équipement par le sac qui peut être facilement retiré.The protection device makes it possible, by localized heating on the heat-shrinkable sleeve, to effectively protect equipment by the bag which can be easily removed.

Selon un exemple préféré de mise en œuvre, le dispositif de protection comporte un système de fixation du manchon thermo rétractable sur le sac pour maintenir le manchon thermo rétractable à distance de l'ouverture d'accès et sensiblement parallèlement à l'ouverture d'accès.According to a preferred example of implementation, the protection device comprises a system for fixing the heat-shrinkable sleeve on the bag to maintain the heat-shrinkable sleeve at a distance from the access opening and substantially parallel to the access opening. .

Selon une caractéristique avantageuse de réalisation, le manchon thermo rétractable possède un taux de rétraction compris entre 50% et 85 %.According to an advantageous embodiment characteristic, the heat-shrinkable sleeve has a shrinkage rate of between 50% and 85%.

Selon une autre caractéristique avantageuse de réalisation, le manchon thermo rétractable possède une hauteur comprise entre 2 et 6 cm.According to another advantageous embodiment characteristic, the heat-shrinkable sleeve has a height of between 2 and 6 cm.

Typiquement, le système de fixation du manchon thermo rétractable sur le sac est un système de fixation adhésif ou par agrafe.Typically, the system for fixing the heat-shrinkable sleeve to the bag is an adhesive or staple fixing system.

Selon un autre exemple de réalisation, le manchon thermo rétractable et/ou le sac est pourvu d'un système d'ouverture facile pour faciliter, lorsque le manchon thermo rétractable est dans son état rétracté, le retrait du dispositif de protection par rapport au récipient.According to another exemplary embodiment, the heat-shrinkable sleeve and/or the bag is provided with an easy-opening system to facilitate, when the heat-shrinkable sleeve is in its retracted state, the removal of the protection device with respect to the container .

Un autre objet de l'invention est de proposer un récipient pourvu d'au moins un équipement couvert par un dispositif de protection conforme à l'invention.Another object of the invention is to provide a container provided with at least one item of equipment covered by a protective device according to the invention.

Avantageusement, le manchon thermo rétractable équipant le récipient est rétracté de manière que le sac présente une section d'étranglement inférieure à la section de l'équipement.Advantageously, the heat-shrinkable sleeve fitted to the container is shrunk so that the bag has a necking section smaller than the section of the equipment.

Un autre objet de l'invention est de proposer un procédé pour protéger au moins un équipement d'un récipient à l'aide d'un dispositif de protection, le procédé comportant les étapes suivantes:

  • mettre à disposition un dispositif de protection conforme à l'invention;
  • enfiler le sac du dispositif de protection autour de l'équipement et le manchon thermo rétractable afin que ce dernier se trouve située entre l'équipement et le récipient;
  • assurer le chauffage du manchon thermo rétractable pour assurer l'étranglement du sac afin que sa section soit inférieure à la section de l'équipement.
Another object of the invention is to propose a method for protecting at least one piece of equipment of a container using a protection device, the method comprising the following steps:
  • providing a protection device according to the invention;
  • thread the bag of the protection device around the equipment and the heat-shrinkable sleeve so that the latter is located between the equipment and the container;
  • ensure the heating of the heat-shrinkable sleeve to ensure the constriction of the bag so that its section is smaller than the section of the equipment.

Selon une caractéristique avantageuse de mise en œuvre du procédé, le chauffage du manchon thermo rétractable est assuré localement sur tout ou partie de la périphérie du manchon thermo rétractable.According to an advantageous characteristic of implementation of the method, the heating of the heat-shrinkable sleeve is ensured locally over all or part of the periphery of the heat-shrinkable sleeve.

Selon une autre caractéristique avantageuse, le chauffage du manchon thermo rétractable est assuré pour assurer une rétraction du manchon thermo rétractable selon un taux de rétraction compris entre 50 % et 85%.According to another advantageous characteristic, the heating of the heat-shrinkable sleeve is ensured to ensure shrinkage of the heat-shrinkable sleeve according to a shrinkage rate of between 50% and 85%.

Selon un exemple d'application, le chauffage du manchon thermo rétractable est assuré par un outil de chauffage manuel.According to an application example, the heating of the heat-shrinkable sleeve is ensured by a manual heating tool.

Selon un autre exemple d'application, le chauffage du manchon thermo rétractable est assuré par un poste de chauffage jusqu'auquel est déplacé par un système de convoyage, le récipient dont l'équipement est pourvu du dispositif de protection.According to another example of application, the heating of the heat-shrinkable sleeve is provided by a heating station up to which is moved by a conveying system, the container whose equipment is provided with the protection device.

Brève description des dessinsBrief description of the drawings

  • [Fig. 1] La figure 1 est une vue de face d'un exemple de réalisation d'un dispositif de protection conforme à l'invention.[ Fig. 1 ] There figure 1 is a front view of an embodiment of a protection device according to the invention.
  • [Fig. 2] La figure 2 est une vue en perspective montrant le dispositif de protection conforme à l'invention avant son enfilement sur le chapeau d'une bouteille de gaz.[ Fig. 2 ] There picture 2 is a perspective view showing the protective device according to the invention before it is fitted onto the cap of a gas cylinder.
  • [Fig. 3] La figure 3 est une vue en perspective montrant le dispositif de protection conforme à l'invention après son enfilement sur le chapeau d'une bouteille de gaz.[ Fig. 3 ] There picture 3 is a perspective view showing the protection device according to the invention after it has been fitted onto the cap of a gas cylinder.
  • [Fig. 4] La figure 4 est une vue en perspective montrant le dispositif de protection conforme à l'invention après son enfilement sur le chapeau d'une bouteille de gaz, avec le manchon rétractable dans son état rétracté.[ Fig. 4 ] There figure 4 is a perspective view showing the protective device according to the invention after it has been fitted onto the cap of a gas bottle, with the retractable sleeve in its retracted state.
  • [Fig. 5] La figure 5 est une vue de face d'un autre exemple de réalisation d'un dispositif de protection conforme à l'invention pourvu d'un système d'ouverture facile du dispositif alors que le manchon rétractable est dans son état non rétracté.[ Fig. 5 ] There figure 5 is a front view of another exemplary embodiment of a protective device according to the invention provided with a system for easy opening of the device while the retractable sleeve is in its non-retracted state.
Description des modes de réalisationDescription of embodiments

Tel que cela ressort de l'exemple de réalisation illustré sur les figures, l'objet de l'invention concerne un dispositif de protection 1 pour au moins un équipement 2, 2a, 2b... d'un récipient 3 au sens général. Les dessins illustrent à titre d'illustration un exemple d'un récipient tel qu'une bouteille de gaz 3 mais il est clair que l'objet de l'invention peut s'adapter à tous types de récipients tels que cuves, citernes, canalisations ou conduites et pouvant contenir différents produits tels que liquides, gaz ou fluides.As emerges from the exemplary embodiment illustrated in the figures, the object of the invention relates to a protection device 1 for at least one piece of equipment 2, 2a, 2b, etc. of a container 3 in the general sense. The drawings illustrate by way of illustration an example of a container such as a gas bottle 3 but it is clear that the object of the invention can be adapted to all types of containers such as tanks, cisterns, pipes or pipes and which may contain different products such as liquids, gases or fluids.

Le dispositif de protection 1 selon l'invention est destiné à protéger un ou plusieurs équipements 2, 2a, 2b, ... d'un récipient, adaptés pour l'utilisation du récipient. A titre d'exemple, sont considérés comme des équipements 2, 2a, 2b, ..., un chapeau, un robinet, une vanne, un obturateur à commande manuelle ou motorisé, un raccord pour la connexion d'un tuyau, un bouchon de sécurité pour le raccord, un indicateur de pression.The protection device 1 according to the invention is intended to protect one or more items of equipment 2, 2a, 2b, etc. of a container, adapted for the use of the container. By way of example, are considered as equipment 2, 2a, 2b, ..., a cap, a tap, a valve, a manually or motorized shutter, a fitting for connecting a pipe, a plug safety device for the connection, a pressure indicator.

Les figures illustrent à titre d'illustration la mise en œuvre du dispositif de protection 1 pour divers équipements 2, 2a, 2b, ... équipant une bouteille de gaz. Selon cet exemple, cette bouteille de gaz comporte en tant qu'équipements, un chapeau 2 venant coiffer un ensemble d'équipements tels un bouchon de sécurité 2a et un raccord 2b. Dans la mesure où cet ensemble d'équipements est intégré à l'intérieur du chapeau 2, la suite de la description fera référence uniquement à ce chapeau. Bien entendu, il sera compris que le dispositif de protection protège ce chapeau 2 mais également l'ensemble des équipements qu'il contient. De plus, toutes les caractéristiques du dispositif de protection décrites en relation du chapeau 2 sont applicables à tout équipement différent d'un chapeau.The figures illustrate by way of illustration the implementation of the protection device 1 for various equipment 2, 2a, 2b, ... equipping a gas bottle. According to this example, this gas cylinder comprises, as equipment, a cap 2 covering a set of equipment such as a safety cap 2a and a connector 2b. Insofar as this set of equipment is integrated inside the cap 2, the rest of the description will refer only to this cap. Of course, it will be understood that the protection device protects this cap 2 but also all the equipment that it contains. Moreover, all the characteristics of the protection device described in relation to cap 2 are applicable to any equipment other than a cap.

De manière classique, le chapeau 2 se présente sous la forme d'un corps tubulaire comportant une extrémité supérieure 5 et une extrémité inférieure 6. La mesure entre l'extrémité supérieure 5 et l'extrémité inférieure 6 correspond à la hauteur du chapeau 2. Le chapeau 2 est également pourvu d'ouvertures 7 aménagées dans la face supérieure et/ou sur la paroi périphérique du chapeau de manière à permettre d'une part l'accès aux divers équipements 2a, 2b, ... et d'autre part la préhension de ce chapeau pour la manipulation de la bouteille. Classiquement, la bouteille de gaz 3 possède au-dessous du chapeau 2, un col 3a dont la section est inférieure à la section du chapeau. Ce col 3a est donc situé entre le chapeau et la bouteille de gaz.Conventionally, the cap 2 is in the form of a tubular body having an upper end 5 and a lower end 6. The measurement between the upper end 5 and the lower end 6 corresponds to the height of the cap 2. The cap 2 is also provided with openings 7 arranged in the upper face and/or on the peripheral wall of the cap so as to allow on the one hand access to the various equipment 2a, 2b, ... and on the other hand gripping this cap for handling the bottle. Conventionally, the gas bottle 3 has, below the cap 2, a neck 3a whose section is smaller than the section of the cap. This neck 3a is therefore located between the cap and the gas cylinder.

Le dispositif de protection 1 selon l'invention comporte un sac en matière plastique souple 10 et au moins un manchon thermo rétractable 11.The protective device 1 according to the invention comprises a flexible plastic bag 10 and at least one heat-shrinkable sleeve 11.

Le sac 10 est réalisé en une matière plastique souple de préférence recyclable, telle qu'en polyéthylène. Le sac 10 comporte deux faces superposées 12, 13 reliées au niveau d'un fond fermé 14, réalisé par un pli ou une soudure. Ces faces 12, 13 sont assemblées par soudure selon deux bords longitudinaux 15 pris en considération de la forme allongée du sac. Selon une variante préférée de réalisation, le sac 10 est réalisé en une matière plastique transparente ou translucide pour une lecture à travers ses faces.The bag 10 is made of a flexible plastic material which is preferably recyclable, such as polyethylene. The bag 10 comprises two superposed faces 12, 13 connected at a closed bottom 14, produced by a fold or a weld. These faces 12, 13 are assembled by welding along two longitudinal edges 15 taking into account the elongated shape of the bag. According to a preferred embodiment, the bag 10 is made of a transparent or translucent plastic material for reading through its faces.

Par exemple, le sac 10 comporte deux feuilles superposées en matière souple soudées ensemble selon les deux bords longitudinaux 15 et un bord transversal formant le fond 14 du sac. Selon un autre exemple, le sac 10 est réalisé par une feuille en matière plastique souple pliée ou dossée selon un bord transversal formant le fond 14 du sac, les deux bords longitudinaux 15 étant fermés par une soudure.For example, the bag 10 comprises two superimposed sheets of flexible material welded together along the two longitudinal edges 15 and a transverse edge forming the bottom 14 of the bag. According to another example, the bag 10 is made of a sheet of flexible plastic material folded or folded along a transverse edge forming the bottom 14 of the bag, the two longitudinal edges 15 being closed by a weld.

Le sac 10 présente à l'opposé de son fond fermé 14, une ouverture 16 dite d'enfilement donnant accès au volume interne du sac. Un tel sac 10 peut être mis en forme pour présenter une forme générale cylindrique ou tubulaire. Il est à noter que le fond 14 du sac peut être muni d'un soufflet si nécessaire. Selon une variante préférée de réalisation, les faces 12, 13 du sac sont décalées entre elles au niveau de l'ouverture 16 pour faciliter son ouverture ou sa mise en forme. Ainsi, le bord transversal d'une face délimitant l'ouverture 16 est situé en retrait du bord transversal de l'autre face délimitant l'ouverture 16.The bag 10 has, opposite its closed bottom 14, a so-called threading opening 16 giving access to the internal volume of the bag. Such a bag 10 can be shaped to have a generally cylindrical or tubular shape. It should be noted that the bottom 14 of the bag can be provided with a bellows if necessary. According to a preferred embodiment, the faces 12, 13 of the bag are offset from one another at the level of the opening 16 to facilitate its opening or its shaping. Thus, the transverse edge of one face delimiting the opening 16 is set back from the transverse edge of the other face delimiting the opening 16.

Tel que cela ressort plus précisément de la figure 2, le sac 10 est destiné à être enfilé par son ouverture 16, sur le chapeau 2 de la bouteille de gaz. Bien entendu, le sac 10 possède une section libre de passage supérieure à la section du chapeau pour permettre d'être enfilé sur ledit chapeau. Cette section libre de passage s'étend à partir de l'ouverture 16 et en direction du fond 14 sur une hauteur au moins égale à la hauteur du chapeau comme cela sera expliqué dans la suite de la description.As more precisely emerges from the figure 2 , the bag 10 is intended to be slipped through its opening 16, on the cap 2 of the gas bottle. Of course, the bag 10 has a free passage section greater than the section of the hat to allow it to be slipped over said hat. This free passage section extends from the opening 16 and towards the bottom 14 over a height at least equal to the height of the cap as will be explained in the following description.

Selon une variante de réalisation, le sac 10 est enfilé par son ouverture 16 de manière que le fond 14 du sac vienne en appui sur la face supérieure 5 du chapeau. Selon une autre variante de réalisation illustrée sur les dessins, le sac 10 est enfilé par son ouverture 16 de manière à venir en appui sur la face supérieure 5 du chapeau, par une soudure transversale 15a aménagée entre les deux faces superposées 12, 13, à distance du fond fermé 14. Dans l'exemple illustré, le sac 10 comporte une soudure transversale 15a en deux parties alignées, s'étendant chacune à partir d'un bord longitudinal 15 pour réduire la section de passage du sac à une valeur inférieure à la section du chapeau. Ainsi, le sac 10 est enfilé sur le chapeau de manière à venir en butée par sa soudure transversale 15a, sur la partie supérieure 5 du chapeau 2. La présence de la soudure transversale 15a donne automatiquement le degré d'enfoncement du sac sur le chapeau.According to a variant embodiment, the bag 10 is threaded through its opening 16 so that the bottom 14 of the bag bears against the upper face 5 of the cap. According to another alternative embodiment illustrated in the drawings, the bag 10 is threaded through its opening 16 so as to bear against the upper face 5 of the cap, by a transverse weld 15a arranged between the two superimposed faces 12, 13, at a distance from the closed bottom 14. In the example illustrated, the bag 10 comprises a transverse weld 15a in two aligned parts, each extending from a longitudinal edge 15 to reduce the section of passage of the bag to a value lower than the section of the hat. Thus, the bag 10 is threaded on the cap so as to come into abutment by its transverse weld 15a, on the upper part 5 of the cap 2. The presence of the transverse weld 15a automatically gives the degree of depression of the bag on the hat .

Avantageusement, la soudure 15a est aménagée à distance du fond 14 du sac pour laisser subsister à partir du fond du sac, une partie 10a à rebrousser à l'intérieur du chapeau pour permettre sa préhension. Après montage du sac sur le chapeau 2, le sac présente à partir de son fond 14 et jusqu'au niveau de la partie supérieure 5 du chapeau, cette partie à rebrousser 10a. Cette partie à rebrousser 10a est destinée à être engagée, par un appui sur le fond 14, à l'intérieur du chapeau et plus précisément à partir de l'ouverture 7 aménagée dans la face supérieure du chapeau. L'engagement du sac 10 à l'intérieur du chapeau 2 permet la préhension de la bouteille de gaz par son chapeau sans endommager le sac.Advantageously, the weld 15a is arranged at a distance from the bottom 14 of the bag to leave a part 10a to be rolled up inside the cap to allow it to be gripped from the bottom of the bag. After mounting the bag on the cap 2, the bag has, from its bottom 14 and up to the level of the upper part 5 of the cap, this part to turn up 10a. This part to turn up 10a is intended to be engaged, by pressing on the bottom 14, inside the cap and more precisely from the opening 7 arranged in the upper face of the cap. The engagement of the bag 10 inside the cap 2 allows the gripping of the gas cylinder by its cap without damaging the bag.

Conformément à l'invention, le dispositif de protection 1 comporte un bracelet ou un manchon thermo rétractable 11 positionné pour entourer le sac. Ce manchon thermo rétractable 11 est apte à occuper soit un état non rétracté pour permettre d'être enfilé autour du chapeau 2 soit après avoir été soumis à un chauffage, un état rétracté pour enserrer le sac autour du chapeau 2. Ce manchon thermo rétractable 11 possède une forme de boucle dont la longueur ou le périmètre délimite une section de passage à travers laquelle le chapeau 2 peut être enfilé.In accordance with the invention, the protection device 1 comprises a bracelet or a heat-shrinkable sleeve 11 positioned to surround the bag. This heat-shrinkable sleeve 11 is capable of occupying either a non-shrinkable state to enable it to be slipped around the hat 2 or, after having been subjected to heating, a retracted state to enclose the bag around the hat 2. This heat-shrinkable sleeve 11 has the shape of a loop, the length or perimeter of which delimits a passage section through which the hat 2 can be put on.

Le manchon thermo rétractable 11 présente, dans son état non rétracté, une section de passage pour être enfilé autour du chapeau 2. En d'autres termes, le manchon thermo rétractable 11 possède une section de passage supérieure à la section du chapeau 2 pour permettre d'être enfilé sur ledit chapeau. Le manchon thermo rétractable 11 peut ainsi être emmanché autour du chapeau 2 pour être positionné au-dessous du chapeau 2, au niveau du col 3a de la bouteille de gaz.The heat-shrink sleeve 11 has, in its non-shrink state, a passage section to be slipped around the cap 2. In other words, the heat-shrink sleeve 11 has a passage section greater than the section of the cap 2 to allow to be put on said hat. The sleeve heat shrink 11 can thus be fitted around the cap 2 to be positioned below the cap 2, at the level of the neck 3a of the gas cylinder.

Dans l'exemple illustré sur les figures, le manchon thermo rétractable 11 possède une section de passage supérieure à la section du sac 10 puisque le manchon thermo rétractable 11 entoure le sac 10 sans le resserrer. Il est à noter qu'il peut être prévu que le manchon thermo rétractable 11 possède une section de passage inférieure à la section du sac 10 en resserrant le sac 10. Dans un tel cas, le manchon thermo rétractable 11 possède toujours une section de passage supérieure à la section du chapeau 2 pour permettre d'être enfilé sur ledit chapeau.In the example illustrated in the figures, the heat-shrinkable sleeve 11 has a larger passage section than the section of the bag 10 since the heat-shrinkable sleeve 11 surrounds the bag 10 without tightening it. It should be noted that it can be provided that the heat-shrinkable sleeve 11 has a lower passage section than the section of the bag 10 by tightening the bag 10. In such a case, the heat-shrinkable sleeve 11 always has a passage section higher than the section of the hat 2 to allow it to be slipped on said hat.

Le manchon thermo rétractable 11 présente, dans son état rétracté, une section de passage réduite par rapport à la section de passage de son état non rétracté. Le manchon thermo rétractable 11 présente ainsi dans son état rétracté, une section de passage dite d'étranglement du sac en vue d'enserrer le sachet autour du chapeau 2.The heat-shrinkable sleeve 11 has, in its retracted state, a reduced passage section compared to the passage section of its non-retracted state. The heat-shrinkable sleeve 11 thus has, in its retracted state, a so-called bag-throttling passage section with a view to enclosing the bag around the cap 2.

Par exemple, le manchon thermo rétractable 11 possède un taux de rétraction compris entre 50% et 85 %. En d'autres termes, le périmètre du manchon thermo rétractable 11 diminue entre 50 % et 85 %, entre son état non rétracté et son état rétracté. Ce taux de rétraction permet d'obtenir un resserrement efficace du sac autour du chapeau 2. Typiquement, le périmètre du manchon thermo rétractable 11 est de 400 mm dans son état non rétracté et de 330 mm dans son état rétracté.For example, the heat-shrinkable sleeve 11 has a shrinkage rate of between 50% and 85%. In other words, the perimeter of the heat-shrink sleeve 11 decreases between 50% and 85%, between its non-shrink state and its retracted state. This rate of retraction makes it possible to obtain effective tightening of the bag around the cap 2. Typically, the perimeter of the heat-shrinkable sleeve 11 is 400 mm in its non-retracted state and 330 mm in its retracted state.

Le manchon thermo rétractable 11 est réalisé de toute manière appropriée. Par exemple, le manchon thermo rétractable 11 est réalisé à partir d'un film thermo rétractable dont les deux extrémités sont fixées par une soudure 11a pour former une boucle. Le film thermo rétractable utilisé est par exemple du polyéthylène téréphtalate (PET) ou polychlorure de vinyle (PVC). Par exemple, le manchon thermo rétractable 11 possède une hauteur comprise entre 2 et 6 cm. Cette hauteur est limitée autorisant ainsi un chauffage localisé n'impactant pas l'environnement du manchon thermo rétractable.The heat-shrinkable sleeve 11 is made in any suitable way. For example, the heat-shrinkable sleeve 11 is made from a heat-shrinkable film whose two ends are fixed by a weld 11a to form a loop. The heat-shrinkable film used is for example polyethylene terephthalate (PET) or polyvinyl chloride (PVC). For example, the heat-shrinkable sleeve 11 has a height of between 2 and 6 cm. This height is limited, thus allowing localized heating that does not impact the environment of the heat-shrinkable sleeve.

Selon une caractéristique avantageuse de réalisation, le dispositif de protection 1 comporte un système de fixation 20 du manchon thermo rétractable 11 sur le sac 10 pour maintenir le manchon thermo rétractable 11 à distance de l'ouverture d'accès 16 et sensiblement parallèlement à l'ouverture d'accès. Ce système de fixation 20 assure la fixation du manchon thermo rétractable 11 sur le sac 10 dans une position telle que lorsque le sac 10 est emmanché autour du chapeau 2, le manchon thermo rétractable 11 est situé au niveau du col 3a de la bouteille de gaz. L'assemblage du manchon thermo rétractable 11 avec le sac 10 permet également de faciliter les opérations de manipulation et de mise en place du dispositif de protection 1 sur le chapeau 2.According to an advantageous embodiment characteristic, the protection device 1 comprises a system 20 for fixing the heat-shrinkable sleeve 11 on the bag 10 to hold the heat-shrinkable sleeve 11 at a distance from the access opening 16 and substantially parallel to the access opening. This fixing system 20 ensures the fixing of the heat-shrinkable sleeve 11 on the bag 10 in a position such that when the bag 10 is fitted around the cap 2, the heat-shrinkable sleeve 11 is located at the level of the neck 3a of the gas cylinder. . The assembly of the heat-shrinkable sleeve 11 with the bag 10 also makes it possible to facilitate the operations of manipulation and installation of the protection device 1 on the hat 2.

Il ressort de la description que l'assemblage du manchon thermo rétractable 11 avec le sac 10 permet un pré-positionnement du manchon thermo rétractable 11 dans sa position définitive lorsque le sac 3 est enfilé sur le chapeau 2. Il est à noter qu'en l'absence du système de fixation 20, le sac 10 est d'abord enfilé autour du chapeau 2 puis le manchon thermo rétractable 11 est enfilé autour du sac 10 et maintenu dans sa position définitive, par tous moyens appropriés lors de l'opération de thermo rétraction. Par exemple, le manchon thermo rétractable 11 peut être maintenu en place, grâce à son frottement avec le sac 10 ou à l'aide d'un outillage de maintien.It emerges from the description that the assembly of the heat-shrinkable sleeve 11 with the bag 10 allows pre-positioning of the heat-shrinkable sleeve 11 in its final position when the bag 3 is threaded onto the cap 2. It should be noted that in the absence of the fastening system 20, the bag 10 is first threaded around the cap 2 then the heat-shrinkable sleeve 11 is threaded around the bag 10 and maintained in its final position, by any appropriate means during the operation of heat shrinkage. For example, the heat-shrinkable sleeve 11 can be held in place, thanks to its friction with the bag 10 or using a holding tool.

Le système de fixation 20 du manchon thermo rétractable 11 sur le sac 10 est réalisé de toute manière appropriée. Selon l'exemple illustré sur les dessins, le système de fixation 20 est un système de fixation adhésif réalisé par des pastilles adhésives. Le système de fixation 20 peut être réalisé différemment comme par exemple, par des agrafes, par une ou plusieurs ailettes présentées par le sac et servant de blocage au manchon thermo rétractable 11 ou par le frottement entre le sac 10 et le manchon thermo rétractable 11.The fastening system 20 of the heat-shrinkable sleeve 11 on the bag 10 is made in any appropriate manner. According to the example illustrated in the drawings, the fastening system 20 is an adhesive fastening system produced by adhesive pads. The fixing system 20 can be made differently, for example, by staples, by one or more fins presented by the bag and serving to block the heat-shrinkable sleeve 11 or by the friction between the bag 10 and the heat-shrinkable sleeve 11.

Selon une variante de réalisation illustrée à la figure 5, le manchon thermo rétractable 11 et/ou le sac 10 est pourvu d'un système d'ouverture facile 11c, 10b pour faciliter, lorsque le manchon thermo rétractable est dans son état rétracté, le retrait du dispositif de protection par rapport au récipient. Ce système d'ouverture facile permet de retirer le sac 10 et d'accéder aux divers équipements 2, 2a, 2b.According to a variant embodiment illustrated in figure 5 , the heat-shrinkable sleeve 11 and/or the bag 10 is provided with an easy opening system 11c, 10b to facilitate, when the heat-shrinkable sleeve is in its retracted state, the removal of the protective device from the container. This system easy opening allows the bag 10 to be removed and access to the various equipment 2, 2a, 2b.

Dans l'exemple illustré, le manchon thermo rétractable 11 est pourvu d'au moins une prédécoupe 11c pour faciliter l'ouverture du manchon thermo rétractable lors de l'opération du retrait du sac en vue d'accéder aux divers équipements 2, 2a, 2b. Dans l'exemple illustré, le manchon thermo rétractable 11 est pourvu de deux prédécoupes 11c réalisées par exemple de part et d'autre de la soudure 11a sur toute la largeur du manchon thermo rétractable. De préférence, le sac 10 présente également à partir de son ouverture 16, au moins une prédécoupe ou fente 10b pour faciliter l'ouverture du sac lors de l'opération du retrait du sac en vue d'accéder aux divers équipements 2, 2a, 2b. Par exemple, la fente ou la prédécoupe 10b est aménagée dans la zone médiane entre les bords longitudinaux 15, sensiblement parallèlement à ces bords, et à partir de l'ouverture 16 sur une longueur limitée inférieure à celle séparant le manchon thermo rétractable 11 de l'ouverture 16.In the example illustrated, the heat-shrinkable sleeve 11 is provided with at least one pre-cut 11c to facilitate the opening of the heat-shrinkable sleeve during the operation of removing the bag in order to access the various equipment 2, 2a, 2b. In the example illustrated, the heat-shrinkable sleeve 11 is provided with two pre-cuts 11c made for example on either side of the weld 11a over the entire width of the heat-shrinkable sleeve. Preferably, the bag 10 also has from its opening 16, at least one pre-cut or slot 10b to facilitate the opening of the bag during the operation of removing the bag in order to access the various equipment 2, 2a, 2b. For example, the slot or the pre-cut 10b is arranged in the middle zone between the longitudinal edges 15, substantially parallel to these edges, and from the opening 16 over a limited length less than that separating the heat-shrinkable sleeve 11 from the opening 16.

Le montage du dispositif de protection 1 selon l'invention sur le chapeau 2 d'une bouteille de gaz 3 découle directement de la description qui précède.The mounting of the protection device 1 according to the invention on the cap 2 of a gas bottle 3 follows directly from the preceding description.

Bien entendu, le dispositif de protection 1 présente des dimensions adaptées aux dimensions du chapeau 2 à couvrir. Le sac 10 du dispositif de protection est enfilé autour du chapeau 2 à partir de son ouverture 16 (figure 2). Le manchon thermo rétractable 11 est également enfilé autour du chapeau 2 en entourant le sac 10. Le manchon thermo rétractable 11 est positionné pour être situé au-dessous du chapeau 2 c'est-à-dire au niveau du col 3a entre le chapeau 2 et le récipient 3.Of course, the protective device 1 has dimensions adapted to the dimensions of the hat 2 to be covered. The bag 10 of the protective device is threaded around the cap 2 from its opening 16 ( figure 2 ). The heat-shrinkable sleeve 11 is also threaded around the hat 2 surrounding the bag 10. The heat-shrinkable sleeve 11 is positioned to be located below the hat 2, that is to say at the level of the neck 3a between the hat 2 and container 3.

Bien entendu, dans le cas où le manchon thermo rétractable 11 est assemblé au sac 10 par le système de fixation 20, l'emmanchement du sac 10 sur le chapeau 2 conduit automatiquement au positionnement correct du manchon thermo rétractable 11 au niveau du col 3a (figure 3). En effet, le sac 10 est enfilé sur le chapeau 2 jusqu'à venir en butée sur l'extrémité supérieure du chapeau 2, par son fond fermé 14 ou sa soudure transversale 15a. Dans cette position de butée, le manchon thermo rétractable 11 entoure le col 3a.Of course, in the case where the heat-shrinkable sleeve 11 is assembled to the bag 10 by the fastening system 20, the fitting of the bag 10 on the cap 2 automatically leads to the correct positioning of the heat-shrinkable sleeve 11 at the level of the neck 3a ( picture 3 ). Indeed, the bag 10 is threaded onto the cap 2 until it comes into abutment on the upper end of the cap 2, by its closed bottom 14 or its transverse weld 15a. In this stop position, the heat-shrinkable sleeve 11 surrounds the neck 3a.

Le procédé consiste ensuite à assurer le chauffage du manchon rétractable 11 pour assurer l'étranglement du sac 10 afin que sa section soit inférieure à la section du chapeau 2. Lors de sa rétraction, le manchon rétractable 11 resserre le sac 10 en créant des plis P. Dans son état rétracté (figure 4), le manchon rétractable 11 présente une section d'étranglement inférieure à la section du chapeau 2 assurant le blocage du sac 10 sur le chapeau 2.The method then consists in ensuring the heating of the shrink sleeve 11 to ensure the constriction of the bag 10 so that its section is smaller than the section of the cap 2. During its retraction, the shrink sleeve 11 tightens the bag 10 by creating folds P. In its retracted state ( figure 4 ), the retractable sleeve 11 has a constriction section lower than the section of the cap 2 ensuring the blocking of the bag 10 on the cap 2.

Il est à noter que le chauffage du manchon thermo rétractable 11 est réalisé localement sur tout ou partie de la périphérie du manchon thermo rétractable. Le chauffage localisé du manchon thermo rétractable 11 permet au sac de conserver notamment sa souplesse tout en n'impactant pas l'environnement du manchon thermo rétractable.It should be noted that the heating of the heat-shrinkable sleeve 11 is carried out locally over all or part of the periphery of the heat-shrinkable sleeve. The localized heating of the heat-shrinkable sleeve 11 allows the bag to retain its flexibility in particular while not impacting the environment of the heat-shrinkable sleeve.

Le chauffage du manchon thermo rétractable 11 est réalisé pour assurer une rétraction du manchon rétractable selon un taux de rétraction compris entre 50% et 85%. Le chauffage est ainsi réalisé afin que le sac 10 se trouve fixé au chapeau 2. Il est à noter que seule la partie du sac 10 située à l'intérieur du manchon thermo rétractable 11 est resserrée. Le sac 10 recouvre ainsi le chapeau 2 sans être thermo rétracté.Heating of the heat-shrinkable sleeve 11 is carried out to ensure shrinkage of the shrinkable sleeve according to a shrinkage rate of between 50% and 85%. The heating is thus carried out so that the bag 10 is fixed to the cap 2. It should be noted that only the part of the bag 10 located inside the heat-shrinkable sleeve 11 is tightened. The bag 10 thus covers the cap 2 without being heat-shrink.

Le chauffage du manchon thermo rétractable 11 est assuré de toute manière appropriée. Selon un exemple de mise en œuvre, le chauffage du manchon thermo rétractable 11 est assuré par un outil de chauffage manuel. Par exemple, le chauffage du manchon thermo rétractable 11 est assuré par un pistolet à air chaud.The heat-shrink sleeve 11 is heated in any appropriate manner. According to an exemplary implementation, the heating of the heat-shrinkable sleeve 11 is ensured by a manual heating tool. For example, the heating of the heat-shrinkable sleeve 11 is ensured by a hot air gun.

Selon un autre exemple de mise en œuvre, le dispositif de protection 1 est fixé de manière automatique sur les bouteilles de gaz 3. Selon cet exemple de mise en œuvre, le chauffage du manchon thermo rétractable 11 est assuré par un poste de chauffage jusqu'auquel est déplacé par un système de convoyage, la bouteille de gaz 3 dont le chapeau 2 est pourvu du dispositif de protection 1 conforme à l'invention. A cet effet, les bouteilles de gaz 3 sont déplacées de l'amont à l'aval du poste de chauffage, par un système de convoyage tel qu'un convoyeur linéaire. Le poste de chauffage est réalisé par exemple sous la forme d'un tunnel pourvu de sources de chauffage localisées et situées de part et d'autre de la trajectoire de déplacement des bouteilles de gaz. Lors du passage dans le poste de chauffage des bouteilles de gaz équipées chacune d'un dispositif de protection 1, chaque manchon thermo rétractable 11 se rétracte sous l'effet du chauffage permettant d'obtenir en sortie du poste de chauffage, une fixation automatique des sacs sur les bouteilles de gaz. Il est à noter qu'il peut être prévu, en amont du poste de chauffage, d'automatiser également l'opération d'emmanchement du sac 10 sur le chapeau 2.According to another example of implementation, the protection device 1 is automatically fixed on the gas cylinders 3. According to this example of implementation, the heating of the heat-shrinkable sleeve 11 is ensured by a heating station up to which is moved by a conveying system, the gas cylinder 3 whose cap 2 is provided with the protective device 1 according to the invention. To this end, the gas cylinders 3 are moved from upstream to downstream of the heating station, by a conveying system such as a linear conveyor. The heating station is made for example in the form of a tunnel provided with localized heating sources located on either side on the other side of the path of movement of the gas cylinders. During the passage through the heating station of the gas cylinders, each equipped with a protection device 1, each heat-shrinkable sleeve 11 retracts under the effect of the heating, making it possible to obtain, at the exit from the heating station, an automatic fixing of the bags on gas cylinders. It should be noted that provision may be made, upstream of the heating station, to also automate the operation of fitting the bag 10 onto the cap 2.

L'objet de l'invention permet ainsi d'obtenir un récipient 3 dont l'équipement 2 est couvert par un sac 10 d'un dispositif de protection 1 conforme à l'invention. Le manchon thermo rétractable 11 entourant le sac 10 est rétracté de manière que le sac présente une section d'étranglement inférieure à la section de l'équipement 2.The object of the invention thus makes it possible to obtain a container 3 whose equipment 2 is covered by a bag 10 of a protective device 1 in accordance with the invention. The heat-shrinkable sleeve 11 surrounding the bag 10 is shrunk so that the bag has a neck section smaller than the section of the equipment 2.

Dans le cas où le dispositif de protection est pourvu d'un système d'ouverture facile 11c, 10b, le sac 10 peut être retiré facilement et en toute sécurité, de la bouteille 3 par l'application d'un effort de déchirement manuel, sans nécessité l'utilisation d'instruments de découpe.In the case where the protection device is provided with an easy opening system 11c, 10b, the bag 10 can be easily and safely removed from the bottle 3 by applying a manual tearing force, without the need for the use of cutting instruments.

Claims (13)

Dispositif de protection (1) pour au moins un équipement (2, 2a, 2b, ...) d'un récipient (3), comportant : - un sac (10) en matière plastique souple présentant une forme générale cylindrique avec une section de passage configurée afin que le sac puisse être enfilé sur l'équipement, le sac présentant un fond fermé (14) et à l'opposé, une ouverture d'accès (16) au volume interne du sac par laquelle le sac est enfilé sur ledit équipement, - un manchon thermo rétractable (11) positionné pour entourer le sac en présentant dans un état non rétracté, une section de passage pour être enfilé sur l'équipement, et dans un état rétracté, une section de passage réduite d'étranglement du sac en vue d'enserrer le sac autour de l'équipement. Protective device (1) for at least one piece of equipment (2, 2a, 2b, ...) of a container (3), comprising: - a bag (10) made of flexible plastic material having a generally cylindrical shape with a passage section configured so that the bag can be slipped over the equipment, the bag having a closed bottom (14) and, on the contrary, an opening access (16) to the internal volume of the bag by which the bag is threaded onto said equipment, - a heat-shrinkable sleeve (11) positioned to surround the bag by having, in an unretracted state, a passage section to be slipped on the equipment, and in a retracted state, a reduced passage section for constricting the bag in view of wrapping the bag around the equipment. Dispositif de protection selon la revendication 1 selon lequel il comporte un système de fixation (20) du manchon thermo rétractable (11) sur le sac (10) pour maintenir le manchon thermo rétractable à distance de l'ouverture d'accès et sensiblement parallèlement à l'ouverture d'accès.Protective device according to Claim 1, in which it comprises a system (20) for fastening the heat-shrinkable sleeve (11) to the bag (10) to hold the heat-shrinkable sleeve at a distance from the access opening and substantially parallel to the access opening. Dispositif de protection selon l'une des revendications précédentes selon lequel le manchon thermo rétractable (11) possède un taux de rétraction compris entre 50% et 85 %.Protective device according to one of the preceding claims, in which the heat-shrinkable sleeve (11) has a shrinkage rate of between 50% and 85%. Dispositif de protection selon l'une des revendications précédentes selon lequel le manchon thermo rétractable (11) possède une hauteur comprise entre 2 et 6 cm.Protective device according to one of the preceding claims, in which the heat-shrinkable sleeve (11) has a height of between 2 and 6 cm. Dispositif de protection selon l'une des revendications 2 à 4 selon lequel le système de fixation (20) du manchon thermo rétractable (11) sur le sac (10) est un système de fixation adhésif ou par agrafe.Protective device according to one of Claims 2 to 4, in which the system (20) for fastening the heat-shrinkable sleeve (11) to the bag (10) is an adhesive or staple fastening system. Dispositif de protection selon l'une des revendications précédentes selon lequel le manchon thermo rétractable (11) et/ou le sac (10) est pourvu d'un système d'ouverture facile (11c, 10b) pour faciliter, lorsque le manchon thermo rétractable est dans son état rétracté, le retrait du dispositif de protection par rapport au récipient.Protective device according to one of the preceding claims, in which the heat-shrinkable sleeve (11) and/or the bag (10) is provided with an easy opening system (11c, 10b) to facilitate, when the heat-shrink sleeve is in its retracted state, withdrawing the protective device from the container. Récipient (3) pourvu d'au moins un équipement (2, 2a, 2b, ...) couvert par un dispositif de protection (1) conforme à l'une des revendications précédentes.Container (3) provided with at least one piece of equipment (2, 2a, 2b, ...) covered by a protection device (1) in accordance with one of the preceding claims. Récipient (3) selon la revendication précédente selon lequel le manchon thermo rétractable (11) est rétracté de manière que le sac (10) présente une section d'étranglement inférieure à la section de l'équipement.Container (3) according to the preceding claim, in which the heat-shrinkable sleeve (11) is shrunk so that the bag (10) has a constriction section smaller than the section of the equipment. Procédé pour protéger au moins un équipement (2, 2a, 2b, ...) d'un récipient (3) à l'aide d'un dispositif de protection (1), le procédé comportant les étapes suivantes: - mettre à disposition un dispositif de protection (1) conforme à l'une des revendications 1 à 6 ; - enfiler le sac (10) du dispositif de protection autour de l'équipement (2, 2a, 2b, ...) et le manchon thermo rétractable (11) afin que ce dernier se trouve située entre l'équipement (2, 2a, 2b, ...) et le récipient (3) ; - assurer le chauffage du manchon thermo rétractable (11) pour assurer l'étranglement du sac afin que sa section soit inférieure à la section de l'équipement. Method for protecting at least one item of equipment (2, 2a, 2b, ...) of a container (3) using a protection device (1), the method comprising the following steps: - providing a protection device (1) according to one of claims 1 to 6; - put the bag (10) of the protective device around the equipment (2, 2a, 2b, ...) and the heat-shrinkable sleeve (11) so that the latter is located between the equipment (2, 2a , 2b, ...) and the container (3); - ensuring the heating of the heat-shrinkable sleeve (11) to ensure the constriction of the bag so that its section is less than the section of the equipment. Procédé selon la revendication précédente selon lequel le chauffage du manchon thermo rétractable (11) est assuré localement sur tout ou partie de la périphérie du manchon thermo rétractable.Method according to the preceding claim, in which the heating of the heat-shrinkable sleeve (11) is ensured locally over all or part of the periphery of the heat-shrinkable sleeve. Procédé selon l'une des revendications 9 ou 10 selon lequel le chauffage du manchon thermo rétractable (11) est assuré pour assurer une rétraction du manchon thermo rétractable (11) selon un taux de rétraction compris entre 50% et 85%.Method according to one of Claims 9 or 10, according to which the heating of the heat-shrinkable sleeve (11) is ensured to ensure shrinkage of the heat-shrinkable sleeve (11) according to a shrinkage rate of between 50% and 85%. Procédé selon l'une des revendications 9 à 11 selon lequel le chauffage du manchon thermo rétractable (11) est assuré par un outil de chauffage manuel.Method according to one of Claims 9 to 11, in which the heat-shrinkable sleeve (11) is heated by a manual heating tool. Procédé selon l'une des revendications 9 à 11 selon lequel le chauffage du manchon thermo rétractable (11) est assuré par un poste de chauffage jusqu'auquel est déplacé par un système de convoyage, le récipient (3) dont l'équipement (2, 2a, 2b, ...) est pourvu du dispositif de protection (1).Method according to one of Claims 9 to 11, in which the heating of the heat-shrinkable sleeve (11) is ensured by a heating station to which is moved by a conveyor system, the container (3) whose equipment (2, 2a, 2b, ...) is provided with the protection device (1).
EP22203990.1A 2021-11-10 2022-10-27 Device and method for protecting a container with a bag provided with a heat-shrinkable sleeve Pending EP4180707A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2111961A FR3128949B1 (en) 2021-11-10 2021-11-10 Device and method for protecting a container by a bag fitted with a heat-shrinkable sleeve

Publications (1)

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EP4180707A1 true EP4180707A1 (en) 2023-05-17

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EP22203990.1A Pending EP4180707A1 (en) 2021-11-10 2022-10-27 Device and method for protecting a container with a bag provided with a heat-shrinkable sleeve

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EP (1) EP4180707A1 (en)
FR (1) FR3128949B1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6123187A (en) * 1996-11-20 2000-09-26 Bartels; Franklin D. Cover for a pressurized tank
EP2535286A1 (en) * 2011-06-16 2012-12-19 Harry Plast Bag for covering a part of an object
FR3083783A1 (en) 2018-07-12 2020-01-17 Decomatic S.A. PROTECTION DEVICE FOR A CONTAINER EQUIPMENT
US10619796B1 (en) * 2015-08-28 2020-04-14 Jeffrey C. Wood Protective cover for medical gas cylinders and canisters

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6123187A (en) * 1996-11-20 2000-09-26 Bartels; Franklin D. Cover for a pressurized tank
EP2535286A1 (en) * 2011-06-16 2012-12-19 Harry Plast Bag for covering a part of an object
US10619796B1 (en) * 2015-08-28 2020-04-14 Jeffrey C. Wood Protective cover for medical gas cylinders and canisters
FR3083783A1 (en) 2018-07-12 2020-01-17 Decomatic S.A. PROTECTION DEVICE FOR A CONTAINER EQUIPMENT

Also Published As

Publication number Publication date
FR3128949A1 (en) 2023-05-12
FR3128949B1 (en) 2023-11-03

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