EP0200662B1 - Device for unwinding rolls of film material - Google Patents

Device for unwinding rolls of film material Download PDF

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Publication number
EP0200662B1
EP0200662B1 EP86440012A EP86440012A EP0200662B1 EP 0200662 B1 EP0200662 B1 EP 0200662B1 EP 86440012 A EP86440012 A EP 86440012A EP 86440012 A EP86440012 A EP 86440012A EP 0200662 B1 EP0200662 B1 EP 0200662B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
ring
diameter
film
truncated cones
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.)
Expired
Application number
EP86440012A
Other languages
German (de)
French (fr)
Other versions
EP0200662A1 (en
Inventor
Gérard Dagues
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.)
SOPALPLAST SA
Original Assignee
SOPALPLAST 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9320993&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0200662(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by SOPALPLAST SA filed Critical SOPALPLAST SA
Priority to AT86440012T priority Critical patent/ATE37001T1/en
Publication of EP0200662A1 publication Critical patent/EP0200662A1/en
Application granted granted Critical
Publication of EP0200662B1 publication Critical patent/EP0200662B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18—Constructional details
    • B65H75/185—End caps, plugs or adapters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B67/00—Apparatus or devices facilitating manual packaging operations; Sack holders
    • B65B67/08—Wrapping of articles
    • B65B67/085—Wrapping of articles using hand-held dispensers for stretch films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/40—Details of frames, housings or mountings of the whole handling apparatus
    • B65H2402/41—Portable or hand-held apparatus
    • B65H2402/412—Portable or hand-held apparatus details or the parts to be hold by the user, e.g. handle

Definitions

  • the present invention relates to a device allowing the manipulation by unwinding of various products presented in rolls and more particularly films of stretchable plastics intended for the packaging of the most diverse products.
  • rolls are very generally in the form of a cardboard sleeve on which is wound a very long length of a thin film of variable width, but generally of the order of 0.25 microns.
  • the operator fixes the free end of the film at a point on the product, and must then wrap this film all around the product, unrolling it as the roll, until the packaging is completed, as a result of which the product is enclosed in a volume of film adhering to itself.
  • the invention eliminates these drawbacks, thanks to specially designed end caps which can easily be fitted inside the cardboard sleeve, and then allow the roller to be manipulated around the product by unrolling and stretching the film with ease and precision.
  • the end piece according to the invention preferably comes from molding in a single piece of material, plastic, and has an internal portion and an external portion, the first intended to be introduced elastically inside the cardboard sleeve and to it. serve as a pivot, the other intended to be taken in each hand by the operator.
  • the internal portion is in the form of a “tulip”, and is in the form of two truncated cones joined by their large base, their junction having a diameter slightly greater than that of the sleeve, and hollowed out along several generatrices so as to be able be compressed elastically inward.
  • the external portion consists of a circular crown delimiting the most tapered of said truncated cones and having a diameter slightly greater than that of the sleeve, this crown being connected to a handling disc by a hollow zone flared outwards.
  • the device according to the invention consists of a so-called internal portion 1, having the shape of the two truncated cones 1 and 2 joined by their large bases along a line 3, and cut by slots 4. At rest, the diameter D of the device is slightly greater than the internal diameter D 2 of the sleeve 5 on which the plastic film 6 is wound.
  • the small base of the most tapered truncated cone is closed by a circular crown 7 whose diameter is greater than the external diameter D 3 of the sleeve 5.
  • a handling disc 8 is connected to the crown 7 by a flare 9.
  • the tulip formed by the petals defined in the trunks of cones 1 and 2 by the slots 4 can compress slightly inwards when the device is pressed into the sleeve 5. Its introduction is further facilitated by the fact that the small base of the cone 2 has a diameter less than D ,.
  • the sleeve slides easily along line 3, which allows, using a device at each end of the sleeve, to rotate the sleeve around the axis XX 'in now by the 8-8 'discs which remain fixed in rotation.
  • Said discs 8-8 ' allowing, moreover, a good grip, the operator can easily handle the roll of film, unrolling it by simple displacement around the product to be packaged, the roller rotating itself around the axis XX' .
  • a condition for the proper functioning of this device is the sufficient degree of penetration into the sleeve to ensure sufficient support around the line 3.
  • a depression of the line 3 therefore a distance from line 3 to crown 7 of about 5 cm is satisfactory.

Abstract

1. Device for handling reels of film material, particularly a plastic packaging film, characterized in that it comprises an inner portion formed by two truncated cones joined by their large base and in which slots are formed along several generatrixes and an outer portion formed from an abutment ring closing the small base of the most tapered cone and a handling disk connected to said ring by a widened portion.

Description

La présente invention concerne un dispositif permettant la manipulation par déroulement de divers produits présentés en rouleaux et plus particulièrement des pellicules de matières plastiques étirables destinées à l'emballage des produits les plus divers.The present invention relates to a device allowing the manipulation by unwinding of various products presented in rolls and more particularly films of stretchable plastics intended for the packaging of the most diverse products.

Ces rouleaux se présentent très généralement sous forme d'un manchon en carton sur lequel est enroulée une très grande longueur d'une pellicule mince de largeur variable, mais généralement de l'ordre de 0,25 microns. Pour emballer un produit donné, l'opérateur fixe l'extrémité libre de la pellicule en un point du produit, et doit ensuite enrouler cette pellicule tout autour du produit, en la déroulant au fur et à mesure du rouleau, jusqu'à ce que l'emballage soit achevé, à la suite de quoi le produit se trouve enfermé dans un volume de pellicule adhérant sur elle-même.These rolls are very generally in the form of a cardboard sleeve on which is wound a very long length of a thin film of variable width, but generally of the order of 0.25 microns. To package a given product, the operator fixes the free end of the film at a point on the product, and must then wrap this film all around the product, unrolling it as the roll, until the packaging is completed, as a result of which the product is enclosed in a volume of film adhering to itself.

L'inconvénient et la difficulté de cette technique, par ailleurs commode et efficace, viennent du poids et des dimensions du rouleau, surtout au début de son utilisation, poids auquel vient s'ajouter le poids d'un appareil dérouleur lourd et peu maniable. En effet, l'opérateur doit alors à la fois déplacer le rouleau et l'appareil dérouleur autour du produit et le faire tourner sur lui-même pour en dérouler la pellicule. L'absence de toute prise sur le manchon rend cette opération pénible et fatigante et peu précise.The disadvantage and difficulty of this technique, which is moreover convenient and effective, comes from the weight and dimensions of the roller, especially at the start of its use, a weight to which is added the weight of a heavy and unwieldy unwinding device. Indeed, the operator must then both move the roller and the unwinding device around the product and rotate it on itself to unwind the film. The absence of any grip on the sleeve makes this operation painful and tiring and imprecise.

L'invention élimine ces inconvénients, grâce à des embouts spécialement conçus pour s'adapter aisément à l'intérieur du manchon de carton, et permettre ensuite de manipuler le rouleau autour du produit en en déroulant et étirant la pellicule avec facilité et précision.The invention eliminates these drawbacks, thanks to specially designed end caps which can easily be fitted inside the cardboard sleeve, and then allow the roller to be manipulated around the product by unrolling and stretching the film with ease and precision.

L'embout selon l'invention est de préférence venu de moulage en une seule pièce de matière, plastique, et présente une portion interne et une portion externe, la première destinée à être introduite élastiquement à l'intérieur du manchon en carton et à lui servir de pivot, l'autre destinée à être prise dans chaque main par l'opérateur.The end piece according to the invention preferably comes from molding in a single piece of material, plastic, and has an internal portion and an external portion, the first intended to be introduced elastically inside the cardboard sleeve and to it. serve as a pivot, the other intended to be taken in each hand by the operator.

La portion interne est en forme de « tulipe •, et se présente sous forme de deux troncs de cône accolés par leur grande base, leur jonction ayant un diamètre légèrement supérieur à celui du manchon, et évidés le long de plusieurs génératrices de manière à pouvoir être comprimés élastiquement vers l'intérieur.The internal portion is in the form of a “tulip”, and is in the form of two truncated cones joined by their large base, their junction having a diameter slightly greater than that of the sleeve, and hollowed out along several generatrices so as to be able be compressed elastically inward.

La portion externe consiste en une couronne circulaire délimitant le plus effilé desdits troncs de cône et ayant un diamètre légèrement supérieur à celui du manchon, cette couronne se raccordant à un disque de manipulation par une zone creuse évasée vers l'extérieur.The external portion consists of a circular crown delimiting the most tapered of said truncated cones and having a diameter slightly greater than that of the sleeve, this crown being connected to a handling disc by a hollow zone flared outwards.

Le dessin annexé permettra de mieux comprendre l'invention. Sur ce dessin :

  • - la figure 1 est une vue en perspective du dispositif selon l'invention et,
  • - la figure 2 est une coupe axiale d'un rouleau de pellicule plastique équipé d'un couple de ces dispositifs.
The appended drawing will allow a better understanding of the invention. On this drawing :
  • FIG. 1 is a perspective view of the device according to the invention and,
  • - Figure 2 is an axial section of a roll of plastic film fitted with a couple of these devices.

Le dispositif selon l'invention se compose d'une portion dite interne 1, ayant la forme des deux troncs de cône 1 et 2 accolés par leurs grandes bases le long d'une ligne 3, et découpés par des fentes 4. Au repos, le diamètre D, du dispositif est légèrement supérieur au diamètre interne D2 du manchon 5 sur lequel est enroulée la pellicule plastique 6.The device according to the invention consists of a so-called internal portion 1, having the shape of the two truncated cones 1 and 2 joined by their large bases along a line 3, and cut by slots 4. At rest, the diameter D of the device is slightly greater than the internal diameter D 2 of the sleeve 5 on which the plastic film 6 is wound.

La petite base du tronc de cône le plus effilé est fermée par une couronne circulaire 7 dont le diamètre est supérieur au diamètre externe D3 du manchon 5.The small base of the most tapered truncated cone is closed by a circular crown 7 whose diameter is greater than the external diameter D 3 of the sleeve 5.

Un disque de manipulation 8 est raccordé à la couronne 7 par un évasement 9.A handling disc 8 is connected to the crown 7 by a flare 9.

L'utilisation de ce dispositif fait appel aux propriétés physiques du matériau dont il est fait.The use of this device calls upon the physical properties of the material from which it is made.

Grâce à son élasticité, la tulipe formée par les pétales définis dans les troncs de cônes 1 et 2 par les fentes 4 peut se comprimer légèrement vers l'intérieur quand on enfonce le dispositif dans le manchon 5. Son introduction est encore facilitée par le fait que la petite base du cône 2 a un diamètre inférieur à D,. Une fois enfoncé jusqu'à ce que la couronne 7 rencontre l'extrémité du manchon 5, le dispositif est au contact élastique de l'intérieur du manchon le long de la ligne 3, et si la longueur du cône 1 est suffisante, cette ligne 3 est située suffisamment loin à l'intérieur du manchon pour constituer un appui stable pour le dispositif. Compte-tenu également de la nature du matériau du dispositif, le manchon glisse aisément le long de la ligne 3, ce qui permet, en utilisant un dispositif à chaque extrémité du manchon, de faire tourner le manchon autour de l'axe XX' en le maintenant par les disques 8-8' qui demeurent fixes en rotation.Thanks to its elasticity, the tulip formed by the petals defined in the trunks of cones 1 and 2 by the slots 4 can compress slightly inwards when the device is pressed into the sleeve 5. Its introduction is further facilitated by the fact that the small base of the cone 2 has a diameter less than D ,. Once pressed until the crown 7 meets the end of the sleeve 5, the device is in elastic contact from the inside of the sleeve along the line 3, and if the length of the cone 1 is sufficient, this line 3 is located far enough inside the sleeve to constitute a stable support for the device. Also taking into account the nature of the material of the device, the sleeve slides easily along line 3, which allows, using a device at each end of the sleeve, to rotate the sleeve around the axis XX 'in now by the 8-8 'discs which remain fixed in rotation.

Lesdits disques 8-8' permettant au surplus une bonne prise, l'opérateur peut aisément manipuler le rouleau de pellicule, en la déroulant par simple déplacement autour du produit à emballer, le rouleau tournant de lui-même autour de l'axe XX'.Said discs 8-8 'allowing, moreover, a good grip, the operator can easily handle the roll of film, unrolling it by simple displacement around the product to be packaged, the roller rotating itself around the axis XX' .

Une condition de bon fonctionnement de ce dispositif est le degré suffisant de pénétration dans le manchon pour assurer un appui suffisant autour de la ligne 3. Dans la pratique, pour un rouleau de 50 cm de largeur, un enfoncement de la ligne 3, donc une distance de la ligne 3 à la couronne 7 d'environ 5 cm est satisfaisant.A condition for the proper functioning of this device is the sufficient degree of penetration into the sleeve to ensure sufficient support around the line 3. In practice, for a roller 50 cm wide, a depression of the line 3, therefore a distance from line 3 to crown 7 of about 5 cm is satisfactory.

Claims (4)

1. Device for handling reels of film material, particularly a plastic packaging film, characterized in that it comprises an inner portion formed by two truncated cones joined by their large base and in which slots are formed along several generatrixes and an outer portion formed from an abutment ring closing the small base of the most tapered cone and a handling disk connected to said ring by a widened portion.
2. Device according to claim 1, characterized in that, in the inoperative state, the diameter of the joining zone of the two truncated cones is slightly larger than the internal diameter of the sleeve on which the film is wound.
3. Device according to claim 1, characterized in that the diameter of said ring is larger than the external diameter of said sleeve.
4. Device according to claims 1 to 3, characterized in that the distance from the joining line of the two truncated cones to said ring is at least approximately 1/10 of the sleeve length.
EP86440012A 1985-07-03 1986-02-12 Device for unwinding rolls of film material Expired EP0200662B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86440012T ATE37001T1 (en) 1985-07-03 1986-02-12 DEVICE FOR DEVELOPING ROLL FILM MATERIAL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8510274 1985-07-03
FR8510274A FR2584383B1 (en) 1985-07-03 1985-07-03 DEVICE FOR UNWINDING ROLLS OF MATERIALS IN FILMS

Publications (2)

Publication Number Publication Date
EP0200662A1 EP0200662A1 (en) 1986-11-05
EP0200662B1 true EP0200662B1 (en) 1988-09-07

Family

ID=9320993

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86440012A Expired EP0200662B1 (en) 1985-07-03 1986-02-12 Device for unwinding rolls of film material

Country Status (5)

Country Link
EP (1) EP0200662B1 (en)
AT (1) ATE37001T1 (en)
DE (1) DE3660665D1 (en)
ES (1) ES8707153A1 (en)
FR (1) FR2584383B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4792375A (en) * 1985-06-20 1988-12-20 Lin Shuh Chin Structure of the automatic tape cutter/sticker
NL9101974A (en) * 1991-11-25 1993-06-16 Witt Tapes B V De OBJECT FOR USING A HANDLE WHEN HANDLING A ROLL OF SHEET MATERIAL.
FR2734237B1 (en) * 1995-05-15 1997-10-24 Gennesson Patrick CORE FOR THE WINDING OF A SHEET PRODUCT, ESPECIALLY A PLASTIC FILM
FR2808002B1 (en) * 2000-04-20 2002-07-26 Bernard Orhant IMPROVED STRETCH FILM DISPENSER
ITVI20050332A1 (en) * 2005-12-07 2007-06-08 Crocco Spa DISPENSER DEVICE
CN102556773A (en) * 2011-12-02 2012-07-11 常熟市浩通市政工程有限公司 Flexible winding handle

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2814338C2 (en) * 1978-04-03 1982-04-22 Jagenberg-Werke AG, 4000 Düsseldorf Clamping head for material webs wound on cores
US4248392A (en) * 1979-12-18 1981-02-03 Parry John C Apparatus for application of plastics stretch films
ATE13847T1 (en) * 1979-12-18 1985-07-15 Parry John C DEVICE FOR MANUAL APPLICATION OF PLASTIC STRETCH FILM.
DE3203646A1 (en) * 1982-02-03 1983-08-11 Stark, Erich, 7151 Affalterbach FILM HAND ROLLER
US4484717A (en) * 1982-12-13 1984-11-27 Joseph Goldstein Stretch-wrap film dispenser with single digit tension control
DE3405753A1 (en) * 1984-02-17 1985-08-22 Stark, Erich, 7151 Affalterbach Gripping device for unrolling rolls of film

Also Published As

Publication number Publication date
FR2584383A1 (en) 1987-01-09
DE3660665D1 (en) 1988-10-13
ES8707153A1 (en) 1987-08-01
EP0200662A1 (en) 1986-11-05
ATE37001T1 (en) 1988-09-15
FR2584383B1 (en) 1987-12-24
ES556407A0 (en) 1987-08-01

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