WO1999048767A1 - Removable element for protecting a product projecting part and method for producing such an element - Google Patents

Removable element for protecting a product projecting part and method for producing such an element Download PDF

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Publication number
WO1999048767A1
WO1999048767A1 PCT/FR1999/000686 FR9900686W WO9948767A1 WO 1999048767 A1 WO1999048767 A1 WO 1999048767A1 FR 9900686 W FR9900686 W FR 9900686W WO 9948767 A1 WO9948767 A1 WO 9948767A1
Authority
WO
WIPO (PCT)
Prior art keywords
sleeve
projecting part
mandrel
section
preformed
Prior art date
Application number
PCT/FR1999/000686
Other languages
French (fr)
Inventor
Guy Marcel Charles Claude Breger
Alain Charles Marcel Jacques Breger
Original Assignee
Breger Emballages S.A.
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 Breger Emballages S.A. filed Critical Breger Emballages S.A.
Priority to EP99909082A priority Critical patent/EP1066202B1/en
Priority to AU28453/99A priority patent/AU2845399A/en
Publication of WO1999048767A1 publication Critical patent/WO1999048767A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D55/00—Accessories for container closures not otherwise provided for
    • B65D55/02—Locking devices; Means for discouraging or indicating unauthorised opening or removal of closure
    • B65D55/06—Deformable or tearable wires, strings, or strips; Use of seals, e.g. destructible locking pins
    • B65D55/08—Annular elements encircling container necks
    • B65D55/0818—Destructible or permanently removable bands, e.g. adhesive
    • B65D55/0854—Shrink-film bands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/002—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers in shrink films

Definitions

  • the present invention relates to a removable protective element of a projecting part of a product such as a tap fitted to a bottle or more generally a container and to a method for producing such an element.
  • the present invention aims to create a protective element and a method of manufacturing such an element which can easily adapt to a very particular shape of parts or protruding parts, and whose final placement (but removable) is by heat shrinking.
  • the invention relates to a protective element characterized in that
  • the sleeve is preformed according to the general shape of the projecting part before being threaded onto this projecting part,
  • the other end of the preformed sleeve has a re-entrant edge with a free opening smaller than the section of the free end of the projecting part.
  • This protective element preformed to the mandrel corresponding itself to the large dimensions and to the silhouette of the projecting part intended to be protected, is simply produced from a mandrel having the largest product shapes on the outside with a section which , glo- balement, is the largest at the base and the smallest at the top.
  • This preformed sleeve-shaped element with a tuck-in edge is very easily positioned on the projecting part. Thanks to the shape of its section, in the event that the projecting part to be protected does not have a shape of revolution over its entire height, the preformed element is positioned perfectly and remains in place while this element is heat-retracted. preformed to narrow it completely on the projecting part.
  • the sleeve is preformed to the general silhouette of the projecting part.
  • a piece of the sleeve may remain on the protruding part as a witness. It may for example be an indication of manufacture or more generally an indication of origin.
  • the longitudinal rupture line starting from the folded edge, is extended by a peripheral line separating the sleeve into two parts, one, removable, the other, intended to remain on the product.
  • the invention also relates to a method for producing such a removable protective element, this method being characterized in that the sleeve is preformed to the general outline of the projecting part.
  • FIG. 1 is a schematic sectional view of a mandrel for the manufacture of a preformed sleeve intended to surround a gas cylinder valve
  • FIG. 2 shows the preforming mandrel on which a piece of sleeve has been placed still cylindrical
  • FIG. 3 shows a removable protective element, preformed on the mandrel
  • FIG. 4 is a perspective view of a protective element according to the invention
  • FIG. 5 is a perspective view of an alternative embodiment of the protection element in FIG. 4,
  • FIG. 6 is a diagram showing the installation of a protective element on a gas cylinder valve
  • FIG. 7 shows the position of the protective element before it is shrunk
  • FIG. 8 shows the heat shrinkage of the protective element on the projecting part (valve).
  • FIG. 9 is a perspective view of the valve protected by the protective element
  • FIG. 10 shows a production line for preformed sleeves from a sheath of shrinkable material
  • FIG. 11 shows another type of preformed protective element
  • FIG. 12 shows the positioning of the protective element of FIG. 11 on the bone of a ham shown very schematically
  • FIG. 13 shows the preformed element heat shrunk on the ham bone
  • Such a valve 1 is represented in FIG. 1.
  • An envelope surface is formed around this valve (or at least of the part which must receive the protection; upper part of the valve) to form a mandrel.
  • the mandrel 2 is produced to form an undercut mold, starting from its base 3.
  • the section of the mandrel 2 is the largest at its lower end 21.
  • This section remains constant over a certain part of its height 22 then it decreases to form a shoulder 23 and ends in a cylindrical part 24 of small section relative to the im- bearing of the mandrel on the side of the base 3.
  • This large section near the base 21 is necessary to absorb, for example, the connector 25 of the pipe which projects laterally.
  • the mandrel 2 does not have a circular cylindrical shape but has, for example, a box-shaped part 25 projecting from the side, starting from the base 21.
  • the valve to be protected 1 is completely in the shape of this mandrel 2 while respecting the requirements for demolding by undercut; in other words, and as already indicated, the “horizontal” section of the mandrel 2 can only decrease while going up towards the cylindrical part 24 (or remain constant over a certain part of its length).
  • This mandrel is used to preform an initially cylindrical sleeve as shown in a first step in FIG. 2.
  • a retractable sleeve is cut, for example from polyvinyl chloride PVC or any other retractable material 3, and it is placed on the mandrel 2.
  • the sleeve 4 has an external dimension significantly greater than that of the mandrel 2.
  • This sleeve 4 simply rests by its lower end 41 on the base 3.
  • the sleeve 4 is heat-shrunk to make it conform to the shape of the mandrel 2.
  • the result of this heat-shrinking appears in FIG. 3.
  • This sleeve 4 is then applied firmly against the external surface of the mandrel 2, the cylindrical part 24, high, having an opening 421A at the edge 422A of the sleeve 42A.
  • the sleeve has taken a rounded shape with a recessed edge curved inwards, matching the shape of the template 2 and its shoulder 23.
  • the preformed sleeve has a lateral deformation 423A corresponding to the box part 25 of the mandrel 2. Finally, it ends with a large base 424A.
  • Figure 3 shows the sleeve 4 in the free position and the pre-shrunk sleeve 4A or preformed sleeve.
  • the preformed sleeve 4A can be removed from the mold by pulling it upwards, thanks to the undercut shape, oriented as indicated.
  • the preformed sleeve 4A represented in FIG. 4 is then obtained.
  • This preformed sleeve 4A has, in addition to the details described above, also a tear strip 44A as well as a logo 45A and a mark 46A, where appropriate. supplemented by a date or indication of a place of manufacture.
  • the tear strip 44A extends over the entire height and the inner rim of the sleeve.
  • FIG. 5 differs only from that of FIG. 2 in that the tear strip 44B does not descend to the large base but stops at a dotted line 47B which separates the preformed sleeve 4B in one part removable upper part 4'B and a lower part 4 "B intended to remain as a witness on the object to be protected, after removal of the upper part 4'B in order to be able to use the projecting part.
  • This 4" B control strip can consist of a logo with an indication of manufacture.
  • Figures 6 to 9 show the establishment of the preformed sleeve 4A on a product 1 and the result obtained.
  • the preformed sleeve 4A is placed on the product 1 after interposition of a covering plate 5 which covers the handle 12 of the valve 1.
  • This figure also shows the positioning of the valve in the plug 13 d 'a tank 14 for example of a gas cylinder.
  • FIG. 7 shows the position in which the sleeve preform 4A is located on the valve 1.
  • This sleeve preformed 4A is oriented around the axis by virtue of the box shape 43 which is located at the fitting with external thread 15 of the valve 1.
  • FIG. 9 shows the projecting part (valve) provided with such a film which is permanently retracted.
  • FIG. 10 shows the automation of a production line for preformed sleeves such as preformed sleeves 4A or 4B.
  • a sheath 102 is unwound from a coil 101.
  • This sheath is made of a heat-shrinkable material, preferably PVC, the retraction characteristics of which are chosen according to the needs of the use, mono-oriented or bi -oriented.
  • This sheath can be pre-printed and precut transversely.
  • a detection barrier 103 detects the position of the reference elements (printed patterns and pre-cut lines) for controlling the cutting station 200 represented diagrammatically by two blades 201, 202.
  • a sleeve blank 104 is first obtained flat. This blank is deployed transversely to pass into the preforming station 300 in which there are mandrels 302 on bases 303 to receive the blanks of sleeves 104.
  • the templates 302 lined with the sleeves 104 pass into a heat-shrinking enclosure 303 in which hot air is blown, for example; this enclosure is preferably a tunnel; the heating can also be provided by infrared then, at the outlet of the preforming enclosure, the preformed sleeves 104A are obtained.
  • the sleeves 104A can be used directly or be stacked and packaged in boxes 401 in a packing station 400 for deferred use or in another installation.
  • Figures 11 to 13 show another variant application of the invention.
  • a preformed sleeve 4C is manufactured with an orifice 421C, a curved edge 422C, as well as a product indication 25C and a use-by date 26C.
  • Other appropriate indications can be carried on this preformed sleeve.
  • This preformed sleeve 4C is of a truncated structure, with a large open base 424C and a small base with a curved edge 422C.
  • Figure 12 shows the establishment of this preformed sleeve 4C on the end of the bone 6 of a ham. Then we finish the installation ( Figure 13) and retract, for example in hot water.
  • the preformed sleeve 4C which has become a sleeve is securely hung on the end of the bone 6 of the ham while allowing the ham to breathe since the sleeve does not not cover the entire end of the bone.
  • This element 4C also provides protection for the vacuum-shrunk overwrapping (not shown) avoiding, thanks to the re-entrant edge 422C, that any roughness of the end of the bone does not risk perforating this overwrapping.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Packages (AREA)

Abstract

The invention concerns a removable element for protecting a product projecting part such as a reservoir or bottle tap, in the form of a sleeve, designed to be pulled onto the projecting part to be heat shrunk on said part. The sleeve (4) is preformed according to the projecting part (mandrel 2) general shape before being pulled onto said projecting part. One sleeve (4, 4A) end (41; 424A) and a certain length (423A) thereof starting from said end, have a cross-section slightly greater than the projecting part (2) largest cross section. The sleeve other end has a recessed edge (422A) with free opening (421A) with smaller cross-section than the projecting part free end.

Description

« Elément de protection amovible d'une partie en saillie d'un produit et procédé de réalisation d'un tel élément »"Removable protective element of a projecting part of a product and process for producing such an element"
La présente invention concerne un élément de protection amovible d'une partie en saillie d'un produit tel qu'un robinet équipant une bouteille ou plus généralement un contenant et un procédé de réalisation d'un tel élément.The present invention relates to a removable protective element of a projecting part of a product such as a tap fitted to a bottle or more generally a container and to a method for producing such an element.
Il est connu de protéger les parties en saillie de produits tels que des réservoirs ou des fûts comme cela est décrit dans le document EP 0 334 697 de la demanderesse. Ces éléments de protection quoique très intéressants, ne conviennent que pour de grandes séries. Or, il existe de nombreuses formes de telles pièces en saillie par exemple des valves de fûts de bière, et le nombre relativement réduit de chaque type de produit ne justifie pas d'un matériel de pose automatique.It is known to protect the protruding parts of products such as tanks or barrels as described in document EP 0 334 697 of the applicant. These protective elements, although very interesting, are only suitable for large series. However, there are many forms of such protruding parts, for example beer keg valves, and the relatively small number of each type of product does not justify automatic laying equipment.
La présente invention a pour but de créer un élément de protection et un procédé de fabrication d'un tel élément qui puissent s'adapter facilement à une forme très particulière de pièces ou de parties en saillie, et dont la mise en place définitive (mais amovible) se fait par thermorétraction.The present invention aims to create a protective element and a method of manufacturing such an element which can easily adapt to a very particular shape of parts or protruding parts, and whose final placement (but removable) is by heat shrinking.
A cet effet, l'invention concerne un élément de protection caractérisé en ce queTo this end, the invention relates to a protective element characterized in that
- le manchon est préformé suivant la forme générale de la partie en saillie avant d'être enfilé sur cette partie en saillie,the sleeve is preformed according to the general shape of the projecting part before being threaded onto this projecting part,
- une extrémité du manchon préformé et une certaine longueur de celui-ci, partant de cette extrémité, ont une section légèrement supérieure à la plus grande section de la partie en saillie,- one end of the preformed sleeve and a certain length of it, starting from this end, have a section slightly greater than the largest section of the projecting part,
- l'autre extrémité du manchon préformé présente un bord rentrant d'ouverture libre inférieure à la section de l'extrémité libre de la partie en saillie.- The other end of the preformed sleeve has a re-entrant edge with a free opening smaller than the section of the free end of the projecting part.
Cet élément de protection, préformé au mandrin correspondant lui-même aux grandes dimensions et à la silhouette de la partie en saillie destinée à être protégée, se réalise simplement à partir d'un mandrin ayant extérieurement les plus grandes formes du produit avec une section qui, glo- balement, est la plus grande à la base et la plus petite au sommet .This protective element, preformed to the mandrel corresponding itself to the large dimensions and to the silhouette of the projecting part intended to be protected, is simply produced from a mandrel having the largest product shapes on the outside with a section which , glo- balement, is the largest at the base and the smallest at the top.
Cet élément en forme de manchon, préformé, avec un bord rentrant, se positionne très facilement sur la partie en saillie. Grâce à la forme de sa section, au cas où la partie en saillie à protéger ne présente pas de forme de révolution sur toute sa hauteur, l'élément préformé se positionne parfaitement et reste en place pendant que l'on thermoré- tracte cet élément préformé pour le rétreindre complètement sur la partie en saillie.This preformed sleeve-shaped element with a tuck-in edge is very easily positioned on the projecting part. Thanks to the shape of its section, in the event that the projecting part to be protected does not have a shape of revolution over its entire height, the preformed element is positioned perfectly and remains in place while this element is heat-retracted. preformed to narrow it completely on the projecting part.
Suivant une caractéristique avantageuse, le manchon est préformé à la silhouette générale de la partie en saillie. Pour faciliter l'enlèvement de l'élément de protection au moment de l'utilisation du produit, il est avantageux que le manchon comporte une ligne de rupture sur au moins une partie de sa longueur ou de sa hauteur. Cette ligne de rupture facilite l'amorçage de la rupture. Un morceau du manchon peut rester sur la partie en saillie comme témoin. Il peut s'agir par exemple d'une indication de fabrication ou plus généralement d'une indication d'origine.According to an advantageous characteristic, the sleeve is preformed to the general silhouette of the projecting part. To facilitate the removal of the protective element when using the product, it is advantageous for the sleeve to have a breaking line over at least part of its length or height. This rupture line facilitates the initiation of the rupture. A piece of the sleeve may remain on the protruding part as a witness. It may for example be an indication of manufacture or more generally an indication of origin.
Dans ce cas la ligne de rupture, longitudinale, partant du bord rabattu, se prolonge par une ligne périphérique séparant le manchon en deux parties, l'une, amovible, l'autre, destinée à rester sur le produit. L'invention concerne également un procédé de réalisation d'un tel élément de protection amovible, ce procédé étant caractérisé en ce que le manchon est préformé à la silhouette générale de la partie en saillie.In this case the longitudinal rupture line, starting from the folded edge, is extended by a peripheral line separating the sleeve into two parts, one, removable, the other, intended to remain on the product. The invention also relates to a method for producing such a removable protective element, this method being characterized in that the sleeve is preformed to the general outline of the projecting part.
La présente invention sera décrite ci -après de manière plus détaillée à l'aide des dessins annexés dans lesquels :The present invention will be described below in more detail with the aid of the appended drawings in which:
- la figure 1 est une vue en coupe schématique d'un mandrin pour la fabrication d'un manchon préformé destiné à entourer une valve de bouteille à gaz, - la figure 2 montre le mandrin de préformage sur lequel a été placé un morceau de manchon encore cylindrique,- Figure 1 is a schematic sectional view of a mandrel for the manufacture of a preformed sleeve intended to surround a gas cylinder valve, - Figure 2 shows the preforming mandrel on which a piece of sleeve has been placed still cylindrical,
- la figure 3 montre un élément de protection amovible, préformé sur le mandrin, - la figure 4 est une vue en perspective d'un élément de protection selon l'invention,FIG. 3 shows a removable protective element, preformed on the mandrel, FIG. 4 is a perspective view of a protective element according to the invention,
- la figure 5 est une vue en perspective d'une variante de réalisation de l'élément de protection de la fi- gure 4 ,FIG. 5 is a perspective view of an alternative embodiment of the protection element in FIG. 4,
- la figure 6 est un schéma montrant la mise en place d'un élément de protection sur une valve de bouteille à gaz,FIG. 6 is a diagram showing the installation of a protective element on a gas cylinder valve,
- la figure 7 montre la position de l'élément de protection avant sa thermorétraction,FIG. 7 shows the position of the protective element before it is shrunk,
- la figure 8 montre la thermorétraction de l'élément de protection sur la partie en saillie (valve),FIG. 8 shows the heat shrinkage of the protective element on the projecting part (valve),
- la figure 9 est une vue en perspective de la valve protégée par l'élément de protection, - la figure 10 montre une chaîne de fabrication de manchons préformés à partir d'une gaine de matériau rétractable,FIG. 9 is a perspective view of the valve protected by the protective element, FIG. 10 shows a production line for preformed sleeves from a sheath of shrinkable material,
- la figure 11 montre un autre type d'élément de protection préformé, - la figure 12 montre la mise en place de l'élément de protection de la figure 11 sur l'os d'un jambon représenté très schématiquement ,FIG. 11 shows another type of preformed protective element, FIG. 12 shows the positioning of the protective element of FIG. 11 on the bone of a ham shown very schematically,
- la figure 13 montre l'élément préformé thermo- rétracté sur l'os de jambon, L'invention sera décrite ci-après d'abord dans son application à la protection d'une valve de bouteille à gaz .- Figure 13 shows the preformed element heat shrunk on the ham bone, The invention will be described below first in its application to the protection of a gas cylinder valve.
Une telle valve 1 est représentée à la figure 1. On inscrit autour de cette valve (ou du moins de la partie qui doit recevoir la protection ; partie supérieure de la valve) une surface enveloppe pour former un mandrin.Such a valve 1 is represented in FIG. 1. An envelope surface is formed around this valve (or at least of the part which must receive the protection; upper part of the valve) to form a mandrel.
En fait, on réalise le mandrin 2 pour former un moule en dépouille, à partir de sa base 3. Pour cela, la section du mandrin 2 est la plus grande au niveau de son extré- mité inférieure 21. Cette section reste constante sur une certaine partie de sa hauteur 22 puis elle va en diminuant pour former un epaulement 23 et se terminer par une partie cylindrique 24 de petite section par rapport à la section im- portante du mandrin du côté de la base 3. Cette grande section près de la base 21 est nécessaire pour absorber par exemple le raccord 25 du tuyau qui vient latéralement en saillie. Pour cette raison, le mandrin 2 n'a pas une forme cylindrique circulaire mais présente par exemple une partie en forme de boîte 25 en saillie sur le côté, à partir de la base 21.In fact, the mandrel 2 is produced to form an undercut mold, starting from its base 3. For this, the section of the mandrel 2 is the largest at its lower end 21. This section remains constant over a certain part of its height 22 then it decreases to form a shoulder 23 and ends in a cylindrical part 24 of small section relative to the im- bearing of the mandrel on the side of the base 3. This large section near the base 21 is necessary to absorb, for example, the connector 25 of the pipe which projects laterally. For this reason, the mandrel 2 does not have a circular cylindrical shape but has, for example, a box-shaped part 25 projecting from the side, starting from the base 21.
La valve à protéger 1 s'inscrit complètement dans la forme de ce mandrin 2 en respectant les nécessités d'un démoulage par contre-dépouille ; en d'autres termes, et comme déjà indiqué, la section « horizontale » du mandrin 2 ne peut que diminuer en remontant vers la partie cylindrique 24 (ou rester constante sur une certaine partie de sa longueur) . Ce mandrin sert à préformer un manchon initialement cylindrique comme cela apparaît dans une première étape à la figure 2.The valve to be protected 1 is completely in the shape of this mandrel 2 while respecting the requirements for demolding by undercut; in other words, and as already indicated, the “horizontal” section of the mandrel 2 can only decrease while going up towards the cylindrical part 24 (or remain constant over a certain part of its length). This mandrel is used to preform an initially cylindrical sleeve as shown in a first step in FIG. 2.
Pour cela on découpe un manchon rétractable, par exemple en chlorure de polyvinyle PVC ou tout autre matériau rétractable 3, et on le place sur le mandrin 2. Le manchon 4 a une dimension extérieure nettement supérieure à celle du mandrin 2. On pourrait choisir une ébauche de manchon 3 de section plus réduite.For this, a retractable sleeve is cut, for example from polyvinyl chloride PVC or any other retractable material 3, and it is placed on the mandrel 2. The sleeve 4 has an external dimension significantly greater than that of the mandrel 2. One could choose a sleeve blank 3 of smaller section.
Ce manchon 4 repose simplement par son extrémité inférieure 41 sur l'embase 3.This sleeve 4 simply rests by its lower end 41 on the base 3.
Puis on thermorétracte le manchon 4 pour lui faire épouser la forme du mandrin 2. Le résultat de cette thermorétraction apparaît à la figure 3. Ce manchon 4 est alors appliqué fermement contre la surface extérieure du mandrin 2 dont la partie cylindrique 24, haute, présente une ouverture 421A au niveau du bord 422A du manchon 42A. De plus, le manchon a pris une forme arrondie avec un bord en retrait recourbé vers l'intérieur, épousant la forme du gabarit 2 et de son epaulement 23.Then the sleeve 4 is heat-shrunk to make it conform to the shape of the mandrel 2. The result of this heat-shrinking appears in FIG. 3. This sleeve 4 is then applied firmly against the external surface of the mandrel 2, the cylindrical part 24, high, having an opening 421A at the edge 422A of the sleeve 42A. In addition, the sleeve has taken a rounded shape with a recessed edge curved inwards, matching the shape of the template 2 and its shoulder 23.
Par contre, à son autre extrémité, et sur une partie de la hauteur 423A, la section horizontale de l'ébauche reste pratiquement constante.On the other hand, at its other end, and over part of the height 423A, the horizontal section of the blank remains practically constant.
Enfin, sur la partie médiane, à partir de la base, le manchon préformé comporte une déformation latérale 423A correspondant à la partie en caisson 25 du mandrin 2. Enfin, il se termine par une grande base 424A.Finally, on the middle part, from the base, the preformed sleeve has a lateral deformation 423A corresponding to the box part 25 of the mandrel 2. Finally, it ends with a large base 424A.
La figure 3 montre le manchon 4 en position libre et le manchon prérétracté 4A ou manchon préformé. Après refroidissement (par exemple en soufflant de l'air frais) on peut démouler le manchon préformé 4A en le tirant vers le haut, grâce à la forme en dépouille, orientée comme indiqué .Figure 3 shows the sleeve 4 in the free position and the pre-shrunk sleeve 4A or preformed sleeve. After cooling (for example by blowing fresh air), the preformed sleeve 4A can be removed from the mold by pulling it upwards, thanks to the undercut shape, oriented as indicated.
On obtient alors le manchon préformé 4A représen- té à la figure 4. Ce manchon préformé 4A présente, outre les détails décrits ci-dessus, également une bande d'arrachage 44A ainsi qu'un logo 45A et une marque 46A, le cas échéant complétés par une date ou l'indication d'un lieu de fabrication. La bande d'arrachage 44A s'étend sur toute la hauteur et le rebord intérieur du manchon.The preformed sleeve 4A represented in FIG. 4 is then obtained. This preformed sleeve 4A has, in addition to the details described above, also a tear strip 44A as well as a logo 45A and a mark 46A, where appropriate. supplemented by a date or indication of a place of manufacture. The tear strip 44A extends over the entire height and the inner rim of the sleeve.
La variante de la figure 5 se distingue uniquement de celle de la figure 2 en ce que la bande d'arrachage 44B ne descend pas jusqu'à la grande base mais s'arrête à un pointillé 47B qui sépare le manchon préformé 4B en une partie supérieure amovible 4'B et une partie inférieure 4"B destinée à rester comme témoin sur l'objet à protéger, après l'enlèvement de la partie supérieure 4'B pour pouvoir utiliser la partie en saillie. Cette bande témoin 4"B peut se com- poser d'un logo avec une indication de fabrication.The variant of FIG. 5 differs only from that of FIG. 2 in that the tear strip 44B does not descend to the large base but stops at a dotted line 47B which separates the preformed sleeve 4B in one part removable upper part 4'B and a lower part 4 "B intended to remain as a witness on the object to be protected, after removal of the upper part 4'B in order to be able to use the projecting part. This 4" B control strip can consist of a logo with an indication of manufacture.
Les figures 6 à 9 montrent la mise en place du manchon préformé 4A sur un produit 1 et le résultat obtenu.Figures 6 to 9 show the establishment of the preformed sleeve 4A on a product 1 and the result obtained.
Selon la figure 6, on place le manchon préformé 4A sur le produit 1 après interposition d'une plaquette de recouvrement 5 qui coiffe la manette 12 de la valve 1. Cette figure montre également la mise en place de la valve dans le bouchon 13 d'un réservoir 14 par exemple d'une bouteille à gaz .According to FIG. 6, the preformed sleeve 4A is placed on the product 1 after interposition of a covering plate 5 which covers the handle 12 of the valve 1. This figure also shows the positioning of the valve in the plug 13 d 'a tank 14 for example of a gas cylinder.
La mise en place de ce manchon préformé 4A et de la plaquette 5 apparaît clairement comme l'indiquent des flèches à la figure 6.The positioning of this preformed sleeve 4A and of the plate 5 appears clearly as indicated by the arrows in FIG. 6.
La figure 7 montre la position dans laquelle se trouve la préforme de manchon 4A sur la valve 1. Ce manchon préformé 4A est orienté autour de l'axe grâce à la forme de boîte 43 qui se trouve au niveau de l'ajustage à filetage extérieur 15 de la valve 1.FIG. 7 shows the position in which the sleeve preform 4A is located on the valve 1. This sleeve preformed 4A is oriented around the axis by virtue of the box shape 43 which is located at the fitting with external thread 15 of the valve 1.
Après cette mise en place on souffle de l'air chaud (figure 8 ; flèches F) pour faire rétracter le manchon préformé étroitement sur le contour de l'objet 1.After this installation, hot air is blown (Figure 8; arrows F) to retract the preformed sleeve tightly around the outline of the object 1.
La figure 9 montre la partie en saillie (valve) munie d'un tel film définitivement rétracté.FIG. 9 shows the projecting part (valve) provided with such a film which is permanently retracted.
La figure 10 montre l'automatisation d'une chaîne de fabrication de manchons préformés tels les manchons préformés 4A ou 4B.FIG. 10 shows the automation of a production line for preformed sleeves such as preformed sleeves 4A or 4B.
Selon une première étape 100, on dévide une gaine 102 d'une bobine 101. Cette gaine est en un matériau thermorétractable, de préférence en PVC dont les caractéristiques de rétraction sont choisies en fonction des besoins de l'usage, mono-orienté ou bi-orienté. Cette gaine peut être préimprimée et prédécoupée transversalement . Une barrière de détection 103 détecte la position des éléments de repère (motifs imprimés et lignes prédécoupées) pour commander le poste de découpe 200 représenté schematiquement par deux lames 201, 202. On obtient ainsi une ébauche de manchon 104 d'abord plat. Cette ébauche est déployée transversalement pour passer dans le poste de préformage 300 dans lequel se trouvent des mandrins 302 sur des bases 303 pour recevoir les ébauches de manchons 104.According to a first step 100, a sheath 102 is unwound from a coil 101. This sheath is made of a heat-shrinkable material, preferably PVC, the retraction characteristics of which are chosen according to the needs of the use, mono-oriented or bi -oriented. This sheath can be pre-printed and precut transversely. A detection barrier 103 detects the position of the reference elements (printed patterns and pre-cut lines) for controlling the cutting station 200 represented diagrammatically by two blades 201, 202. A sleeve blank 104 is first obtained flat. This blank is deployed transversely to pass into the preforming station 300 in which there are mandrels 302 on bases 303 to receive the blanks of sleeves 104.
Les gabarits 302 garnis des manchons 104 passent dans une enceinte de thermorétraction 303 dans laquelle on souffle par exemple de l'air chaud ; cette enceinte est de préférence un tunnel ; le chauffage peut également être assu- ré par infrarouge puis, en sortie de l'enceinte de préformage, on obtient les manchons préformés 104A.The templates 302 lined with the sleeves 104 pass into a heat-shrinking enclosure 303 in which hot air is blown, for example; this enclosure is preferably a tunnel; the heating can also be provided by infrared then, at the outlet of the preforming enclosure, the preformed sleeves 104A are obtained.
Les manchons 104A peuvent être utilisés directement ou être empilés et emballés dans des boîtes 401 dans un poste d'emballage 400 pour une utilisation différée ou dans une autre installation.The sleeves 104A can be used directly or be stacked and packaged in boxes 401 in a packing station 400 for deferred use or in another installation.
Le défilement des produits entre les différents postes pour les opérations décrites ci-dessus se fait par des 7The scrolling of the products between the different stations for the operations described above is done by 7
moyens de transport et de transfert automatiques usuels, non représentés de manière détaillée.usual means of automatic transport and transfer, not shown in detail.
Les figures 11 à 13 montrent une autre variante d'application de l'invention. Comme précédemment, selon la figure 11, on fabrique un manchon préformé 4C avec un orifice 421C, un bord recourbé 422C, ainsi qu'une indication de produit 25C et une date limite d'utilisation 26C. D'autres indications appropriées peuvent être portées sur ce manchon préformé. Ce manchon préformé 4C est d'une structure tron- conique, avec une grande base 424C ouverte et une petite base avec un bord recourbé 422C.Figures 11 to 13 show another variant application of the invention. As before, according to FIG. 11, a preformed sleeve 4C is manufactured with an orifice 421C, a curved edge 422C, as well as a product indication 25C and a use-by date 26C. Other appropriate indications can be carried on this preformed sleeve. This preformed sleeve 4C is of a truncated structure, with a large open base 424C and a small base with a curved edge 422C.
La figure 12 montre la mise en place de ce manchon préformé 4C sur l'extrémité de l'os 6 d'un jambon. Puis on termine la mise en place (figure 13) et on rétracte, par exemple dans l'eau chaude.Figure 12 shows the establishment of this preformed sleeve 4C on the end of the bone 6 of a ham. Then we finish the installation (Figure 13) and retract, for example in hot water.
A la sortie de ce traitement (qui pourrait également être réalisé par de l'air chaud) le manchon préformé 4C devenu manchon est solidement accroché sur l'extrémité de 1 ' os 6 du jambon tout en permettant au jambon de respirer puisque le manchon ne recouvre pas toute l'extrémité de l'os. Cet élément 4C assure également une protection du suremballage rétracté sous vide (non représenté) évitant, grâce au bord rentrant 422C, que d'éventuelles aspérités de l'extrémité de l'os ne risquent de perforer ce suremballage. At the end of this treatment (which could also be carried out with hot air) the preformed sleeve 4C which has become a sleeve is securely hung on the end of the bone 6 of the ham while allowing the ham to breathe since the sleeve does not not cover the entire end of the bone. This element 4C also provides protection for the vacuum-shrunk overwrapping (not shown) avoiding, thanks to the re-entrant edge 422C, that any roughness of the end of the bone does not risk perforating this overwrapping.

Claims

R E V E N D I C A T I O N S 1°) Elément de protection amovible d'une partie en saillie d'un produit tel que le robinet d'un réservoir ou bouteille, en forme de manchon, destiné à être enfilé sur la partie en saillie pour être thermorétracté sur cette partie, caractérisé en ce que1 °) Removable protective element of a projecting part of a product such as the valve of a reservoir or bottle, in the form of a sleeve, intended to be threaded on the projecting part to be heat shrunk on this part, characterized in that
- le manchon (4) est préformé suivant la forme générale de la partie en saillie (1) avant d'être enfilé sur cette partie en saillie, - une extrémité (41) du manchon (4) et une certaine longueur (423A) de celui-ci, partant de cette extrémité (41), ont une section légèrement supérieure à la plus grande section de la partie en saillie (1, 15),- the sleeve (4) is preformed according to the general shape of the projecting part (1) before being threaded onto this projecting part, - one end (41) of the sleeve (4) and a certain length (423A) of the latter, starting from this end (41), have a section slightly greater than the largest section of the projecting part (1, 15),
- l'autre extrémité (42) du manchon (4) présente un bord ren- trant (422A) d'ouverture libre (421A) inférieure à la section de l'extrémité libre de la partie en saillie.- the other end (42) of the sleeve (4) has an inside edge (422A) of free opening (421A) smaller than the section of the free end of the projecting part.
2°) Elément de protection amovible selon la revendication 1, caractérisé en ce que le manchon (4) est préformé à la silhouette générale de la partie en saillie.2) removable protective element according to claim 1, characterized in that the sleeve (4) is preformed to the general silhouette of the projecting part.
3°) Elément de protection selon la revendication 1, caractérisé en ce que le manchon comporte, sur au moins une partie de sa longueur, une bande d'arrachage (44A) .3) protective element according to claim 1, characterized in that the sleeve comprises, over at least part of its length, a tear strip (44A).
4°) Procédé pour la réalisation d'un élément de protection amovible selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu' on réalise un mandrin (2) de la partie en saillie (1) destinée à recevoir l'élément de protection (4, 4A) en donnant à ce mandrin (2) une forme telle que la section de sa base et sur une certaine hauteur de celui-ci soit légèrement supé- rieure à la plus grande section de la partie en saillie (1) , on forme à l'extrémité supérieure du mandrin un élément cylindre de centrage (24), de section beaucoup plus petite que la section restante du mandrin (2) de manière à former, à la jonction de cet élément cylindrique (24) et du corps du mandrin (2) , un epaulement périphérique (23) , toutes les parties en relief du mandrin, correspondant à la forme de la partie en saillie, sont en dépouille à partir de la base, on découpe un manchon (4) de longueur au moins égale à la longueur du mandrin, on rétracte ce manchon (4) sur le mandrin (2) pour lui faire épouser la forme et on démoule le manchon ainsi préformé.4 °) A method for producing a removable protective element according to any one of claims 1 to 3, characterized in that a mandrel (2) is produced from the projecting part (1) intended to receive the protective element (4, 4A) by giving this mandrel (2) a shape such that the section of its base and over a certain height thereof is slightly greater than the largest section of the projecting part ( 1), a centering cylinder element (24) is formed at the upper end of the mandrel, of much smaller section than the remaining section of the mandrel (2) so as to form, at the junction of this cylindrical element (24) and the body of the mandrel (2), a peripheral shoulder (23), all the raised parts of the mandrel, corresponding to the shape of the protruding part, are drawn from the base , a sleeve (4) of length at least equal to the length of the mandrel is cut, this sleeve (4) is retracted on the mandrel (2) to make it conform to the shape and the sleeve thus preformed is removed from the mold.
5°) Procédé pour la réalisation des éléments de protection amovibles selon les revendications 1, 2, 3, 4, caractérisé en ce que l'ensemble des opérations est réalisé (101, 102) automatique- ment à partir d'une bobine de gaine préimprimée d'un matériau rétractable, pour produire des manchons préformés (104A) gardant une capacité de rétraction et qui sont empilés par emboîtage partiel ou total pour être conditionnés dans un emballage d'expédition (401) destiné à un autre site. 5 °) Method for producing the removable protective elements according to claims 1, 2, 3, 4, characterized in that all of the operations are carried out (101, 102) automatically from a sheath coil preprinted with a shrinkable material, to produce preformed sleeves (104A) retaining a shrinkage capacity and which are stacked by partial or total casing to be packaged in a shipping package (401) intended for another site.
PCT/FR1999/000686 1998-03-26 1999-03-24 Removable element for protecting a product projecting part and method for producing such an element WO1999048767A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP99909082A EP1066202B1 (en) 1998-03-26 1999-03-24 Removable element for protecting a product projecting part and method for producing such element
AU28453/99A AU2845399A (en) 1998-03-26 1999-03-24 Removable element for protecting a product projecting part and method for producing such an element

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR98/03755 1998-03-26
FR9803755A FR2776626B1 (en) 1998-03-26 1998-03-26 REMOVABLE PROTECTION ELEMENT OF A PROJECTING PART OF A PRODUCT AND PROCESS FOR PRODUCING SUCH AN ELEMENT

Publications (1)

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WO1999048767A1 true WO1999048767A1 (en) 1999-09-30

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PCT/FR1999/000686 WO1999048767A1 (en) 1998-03-26 1999-03-24 Removable element for protecting a product projecting part and method for producing such an element

Country Status (7)

Country Link
EP (1) EP1066202B1 (en)
AU (1) AU2845399A (en)
ES (1) ES2205785T3 (en)
FR (1) FR2776626B1 (en)
PT (1) PT1066202E (en)
TR (1) TR200002777T2 (en)
WO (1) WO1999048767A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3052232B1 (en) * 2016-06-07 2018-11-16 Air Liquide Sante Int THERMO-RETRACTABLE SLEEVE FOR BLOC GAS CONTAINER TAP

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2804851A1 (en) * 1978-02-04 1979-08-09 Loos Co Gmbh Metallkapsel Heat shrink bottle caps with foil backed tear tabs - to inhibit curling of the tab heads during application
FR2593472A2 (en) * 1985-08-01 1987-07-31 Scheidegger Walter Cie Ets Screw top for a container having a neck equipped with an outer thread, its manufacturing method and its implementation
FR2598389A1 (en) * 1986-05-07 1987-11-13 Scheidegger Albert Heat-shrinkable skirt with tear-off strips for container stopping device and sheath for implementing it
US4757595A (en) * 1987-03-02 1988-07-19 Asgard Corporation Process for protecting ends of oil field tubular products
EP0334697A1 (en) 1988-03-22 1989-09-27 ETS BREGER AINE SA. Société dite: Combination with protection element for a barrel valve
FR2733733A1 (en) * 1995-05-05 1996-11-08 Serre Robert Thermoplastic packaging sleeve manufacturing/printing procedure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2804851A1 (en) * 1978-02-04 1979-08-09 Loos Co Gmbh Metallkapsel Heat shrink bottle caps with foil backed tear tabs - to inhibit curling of the tab heads during application
FR2593472A2 (en) * 1985-08-01 1987-07-31 Scheidegger Walter Cie Ets Screw top for a container having a neck equipped with an outer thread, its manufacturing method and its implementation
FR2598389A1 (en) * 1986-05-07 1987-11-13 Scheidegger Albert Heat-shrinkable skirt with tear-off strips for container stopping device and sheath for implementing it
US4757595A (en) * 1987-03-02 1988-07-19 Asgard Corporation Process for protecting ends of oil field tubular products
EP0334697A1 (en) 1988-03-22 1989-09-27 ETS BREGER AINE SA. Société dite: Combination with protection element for a barrel valve
FR2733733A1 (en) * 1995-05-05 1996-11-08 Serre Robert Thermoplastic packaging sleeve manufacturing/printing procedure

Also Published As

Publication number Publication date
ES2205785T3 (en) 2004-05-01
PT1066202E (en) 2003-12-31
EP1066202B1 (en) 2003-08-13
EP1066202A1 (en) 2001-01-10
FR2776626A1 (en) 1999-10-01
AU2845399A (en) 1999-10-18
FR2776626B1 (en) 2000-04-28
TR200002777T2 (en) 2000-12-21

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