EP2074920A1 - System for dispensing paper in rolls - Google Patents

System for dispensing paper in rolls Download PDF

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Publication number
EP2074920A1
EP2074920A1 EP08291216A EP08291216A EP2074920A1 EP 2074920 A1 EP2074920 A1 EP 2074920A1 EP 08291216 A EP08291216 A EP 08291216A EP 08291216 A EP08291216 A EP 08291216A EP 2074920 A1 EP2074920 A1 EP 2074920A1
Authority
EP
European Patent Office
Prior art keywords
roll
roller
housing
complementary
rotation
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.)
Withdrawn
Application number
EP08291216A
Other languages
German (de)
French (fr)
Inventor
Gilles Cattacin
Jean-Louis Jehl
Nicolas Pommier
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.)
Essity Operations France SAS
Original Assignee
Georgia Pacific France SAS
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 Georgia Pacific France SAS filed Critical Georgia Pacific France SAS
Publication of EP2074920A1 publication Critical patent/EP2074920A1/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/24—Towel dispensers, e.g. for piled-up or folded textile towels; Toilet-paper dispensers; Dispensers for piled-up or folded textile towels provided or not with devices for taking-up soiled towels as far as not mechanically driven
    • A47K10/32—Dispensers for paper towels or toilet-paper
    • A47K10/34—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means
    • A47K10/38—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means the web being rolled up with or without tearing edge
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/24—Towel dispensers, e.g. for piled-up or folded textile towels; Toilet-paper dispensers; Dispensers for piled-up or folded textile towels provided or not with devices for taking-up soiled towels as far as not mechanically driven
    • A47K10/32—Dispensers for paper towels or toilet-paper
    • A47K10/34—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means
    • A47K10/36—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means with mechanical dispensing, roll switching or cutting devices
    • A47K10/3662—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means with mechanical dispensing, roll switching or cutting devices with devices preventing the use of non-authorised paper rolls
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/24—Towel dispensers, e.g. for piled-up or folded textile towels; Toilet-paper dispensers; Dispensers for piled-up or folded textile towels provided or not with devices for taking-up soiled towels as far as not mechanically driven
    • A47K10/32—Dispensers for paper towels or toilet-paper
    • A47K10/34—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means
    • A47K10/38—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means the web being rolled up with or without tearing edge
    • A47K10/3836—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means the web being rolled up with or without tearing edge with roll spindles which are supported at one side

Definitions

  • the invention relates to a roll paper dispensing system and the method of manufacturing such a roll.
  • the state of the art includes plastic tips of a special shape, which are placed for example inside a mandrel on which the product is wound and which cooperate with complementary supports placed in the dispenser. Without these tips, the roller can not be put in place or can not be used properly.
  • rollers having flanks with a groove each cooperating with a special support are also known: a roll without groove can not be held in the dispenser or the hood of the latter can not close, because of the different size of the roll without throat compared to a roll with grooves.
  • EP-A1-1,782,722 proposes a distribution system, which comprises a strip of absorbent product roll and a distributor.
  • the dispenser comprises a frame and a cover which is mounted movable relative to the frame, between an open position for the introduction of the roll in the dispenser and a closed position of use of the roll.
  • the distributor comprises a first guide and positioning element which is carried by the cover and which is adapted to be received axially in a first housing arranged in the center of a first side of the roll, and a second holding element which is carried by the frame and which is adapted to be received axially in a second housing arranged in the center of a second side of the roll.
  • the first guide and positioning element comprises a generally frustoconical smooth section of decreasing section towards the inside of the dispenser which is adapted to be received axially in the first associated housing of the roller.
  • a roll which does not comprise a frustoconical complementary shape of housing to that of the smooth section will oppose the closure of the distributor cover, because of the different dimensions of the roll without complementary housing with respect to a roller with a frustoconical complementary housing.
  • the smooth section is likely to be driven into the side of the roll which has no complementary housing, forcing the closing of the cover so as to deform the sidewall of the roll.
  • the roller may be able to rotate about its axis of rotation by sliding on the smooth section, and the system is then usable, despite degraded operating conditions .
  • the invention provides an economical means to make captive the couple "distributor, paper roll" without adding to the roll of additional elements.
  • the invention proposes a dispensing system comprising means for opposing the rotation of a roll which does not comprise a complementary housing.
  • the invention proposes a system of the type described above, characterized in that said second guide and positioning element comprises at least one projecting portion on which an inner wall of the second housing is able to slide for the guidance in rotation of the roll if the roll has a complementary shape and which is able to penetrate into the product strip constituting the roll if the roll does not have a complementary shape in order to prevent its rotation.
  • FIG. 1 a system 10 for dispensing an absorbent product strip.
  • the absorbent product is, for example, a paper strip 12, such as toilet paper, which is in the form of a cylindrical roller 14 of axis A.
  • the roller 14 is delimited axially by a first sidewall 16a and a second sidewall 16b opposite axially between them.
  • the roller 14 has a first housing 24a, shown in FIG. figure 3b which is arranged in the center of the first flank 16a of the roller 14 and which has an inner wall.
  • the roller 14 has a second housing 24b, shown in FIG. figure 3a which is arranged in the center of the second flank 16b of the roller 14 and which has an inner wall 25b.
  • the first housing 24a and the second housing 24b are here opposed axially and interconnected by a generally tubular cavity 24 extending along the axis A of the roller 14.
  • the distribution system 10 further comprises a distributor 18 for the distribution of the paper 12, which is made by rotating the roller 14 about the axis A.
  • the dispenser comprises a frame 20 which, advantageously, is fixed integrally to a wall (not shown).
  • the distributor 18 comprises a cover 28 which is mounted to move relative to the frame 20 by means of rotation 30.
  • the rotation means 30 here consist of a pivot link B axis hinge type.
  • the cover 28 is able to open and close thanks to a rotational movement about a transverse axis B orthogonal to the axis A of rotation of the roller 14.
  • the cover 28 is able to occupy an open position for the positioning of the roll 14 and a closed position for the distribution of the paper 12, illustrated in FIG. figure 1 .
  • the frame 20 and the cover 28 may be a single piece, in which case the frame 20 and the cover 28 are for example interconnected by a flexible portion adapted to ensure the opening of the cover 28 relative to the frame 20.
  • the distributor 18 comprises means 22 for holding and guiding the rotation of the roller 14.
  • the means 22 for holding and guiding the rotation of the roller 14 comprise a first holding member 22a which is carried by the frame 20 and which is capable of being received axially in the first housing 24a associated with the roller 14.
  • the first holding element 22a is of the "harpoon” type, known from the prior art, and is of generally cylindrical shape.
  • the first retaining element 22a comprises a hooking section 32 which is arranged axially along the axis A of rotation of the roller 14, in the first housing 24a of the first sidewall 16a of the roller 14.
  • the hooking section 32 comprises radially projecting elements 34, such as fins 34, which extend in a direction that is substantially oblique with respect to the longitudinal axis A of the roll 14, so that the fins 34 oppose the withdrawal. of the first holding member 22a when the latter is pressed into the roll 14, as illustrated in FIG. figure 1 for example.
  • the fins 34 are preferably free to rotate along the axis A relative to the attachment section 32 and the section 32 is fixed relative to the frame 20.
  • attachment section 32 includes a chamfer 36 to facilitate the insertion of the first element 22a for holding in the roller 14.
  • the hooking portion 32 of the first holding member 22a preferably has an axial length 13 equal to or less than one third of the axial length 12 of the roll 14.
  • the first holding element 22a comprises a section 38 fixed in a bore 40 of the frame 20 along the longitudinal axis A of the roller 14.
  • first retaining element 22a comprises a shoulder 42 which cooperates with an annular seat 44 of the bore 40 of the frame 20 so as to prevent the axial displacement along the axis A of the first element 22a for holding outwards of the distributor 18.
  • the means 22 for holding and guiding the rotation of the roller 14 comprise a second holding member 22b which is carried by the movable cover 18.
  • the second element 22b for guiding and positioning comprises a projecting portion 26 which extends axially from an inner face 29 of the cover 28 and which is fixed in rotation.
  • the inner face 29 of the cover 28 is arranged opposite the first side 16a of the roller 14 when the cover 28 is in its closed position, so that the projecting portion 26 is adapted to be received axially in the second housing 24b of the roller 14.
  • the protruding portion 26 is here of generally conical inwardly decreasing section of the dispenser 18, and it has a plurality of plates 48, or teeth.
  • the plates 48 are distributed angularly around the axis A in a regular and symmetrical manner along the axis A, forming a star.
  • Each plate 48 is of decreasing section towards the inside of the dispenser.
  • each plate 48 is delimited by a leading edge 50 which extends obliquely towards the axis A and which is able to cooperate by sliding on the inner wall 25b of the second housing 24b of the roller 14.
  • the second housing 24b has a shape of revolution about the axis A which is complementary to that of the assembly constituted by the plates 48, here a conical or frustoconical shape, to allow the rotation of the roller 14 around the axis A sliding on the plates 48.
  • the generally conical shape of the assembly constituted by the plates 48 allows self-centering of the roller 14 with respect to the cover 28.
  • the second housing 24b has an angle a2 of revolution relative to the axis A which is substantially identical to an angle a1 of the leading edge 50 of each plate 48 relative to the axis A.
  • the optimal angle a1 can be between 30 ° and 55 °.
  • the second housing 24b has a maximum diameter d1 less than or equal to one third of the diameter d2 of the new roll 14.
  • each plate 48 extends axially from the first sidewall 16a of the roll 14 into the second housing 24b of the roll 14, over a length I1 less than or equal to one-third of the total axial length I2, or width, of the roll 14.
  • the edge Attack 50 of each plate 48 is rounded convex shape, without sharp angle.
  • the plates 48 converge axially towards the axis A to form a vertex 46 of rounded shape without sharp angle.
  • the plates 48 of the protruding portion 26 are able to fulfill a first function of guiding and positioning the roller 14, if the roller 14 is a roller 14 said complementary.
  • the roller 14 shown in figures 1 , 3a and 3b is a complementary roll 14.
  • complementary roller 14 is meant a roller 14 whose second housing 24b has a shape of revolution which is complementary to the shape of the projecting portion 26 and plates 48, here a generally conical shape.
  • the plates 48 of the protruding portion 26 are capable of performing a rotational locking function of the roller 14, if the roller 14 is non-complementary.
  • non-complementary roll is meant a roll 15 whose second housing 24b has a shape which is not complementary to the shape of the protruding portion 26, such as the roll 15 illustrated in FIG. figure 4 .
  • the invention also relates to a method of manufacturing the complementary roll 14.
  • the manufacturing process of the complementary roller 14 comprises a step during which is deformed axially a sidewall of the roller 14, here the second sidewall 16b, to form the second housing 24b by means of a tool (not shown) male shaped by frustoconical example driven by a press-type machine, crushing the folds of the paper 12 in the center of the second flank 16b of the roll 14, so that the second housing 24b is able to cooperate by sliding on the plates 48 of the second element 22b of guidance and positioning.
  • the second housing 24b thus formed may have a maximum depth p1 equal to one third of the axial length I2 of the complementary roller 14, and preferably equal to one fifth of this length I2 so as not to deform the roller 14 too much.
  • the maximum diameter d1 of the second housing 24b is less than half the diameter d2 of the roll 14, and preferably less than or equal to one third of the diameter d2 of the roll 14.
  • the conicity of the second housing 24b thus produced does not affect the properties of use of the paper sheets 12 forming the roller 14.
  • the first retaining element 22a has a shape substantially identical to that of the second element 22b for guiding and positioning, possibly of different dimensions.
  • the complementary roll 14 comprises a first housing 24a and a second housing 24b of conical shape in each of its flanks 16a and 16b respectively.
  • the means 22 for holding and guiding the complementary roll 14 in rotation may be part of a structural element that is not permanently bonded to the frame 20 of the distributor 18.
  • each plate 48 has a plurality of notches 52, each of which extends axially from the leading edge 50 of the associated plate 48.
  • the notches 52 are able to trap the mandrel when the cap 28 is driven towards its closed position.
  • the notches 52 are arranged in several series, the notches 52 of the same series being arranged in a circle around the axis A of rotation of the roller 14, so that each series of notches 52 is able to trap a mandrel of a determined standard diameter.
  • the function of guiding the complementary roller 14 in rotation and the locking function in rotation of the non-complementary roller 15 are filled by the same elements, here the plates 48 of the projecting portion 26.
  • the rotational guiding function can be filled by a smooth element on which the inner wall 25b of the second housing 24b is able to slide
  • the rotational locking function can be filled by a plurality of projecting elements which are able to penetrate into the product strip 12 of the non-complementary roll 15, in order to oppose the rotation of this roll 15.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Sanitary Thin Papers (AREA)
  • Unwinding Webs (AREA)
  • Replacement Of Web Rolls (AREA)

Abstract

The system has maintenance and guiding units (22) to maintain and guide a roller (14). The units (22) includes a maintenance element (22a) and a guiding and positioning element (22b) that are received axially in lateral housings (24a, 24b) arranged on flanges (16a, 16b) of the roller. The element (22b) has a projecting portion (26) on which an inner wall (25b) of the housing (24b) is slid for guiding the roller in rotation or is penetrated in a product strip (12) constituting roller to avoid rotation when the roller presents a complementary form and non complementary form, respectively. An independent claim is also included for a method for fabricating a roller complementary to the system.

Description

L'invention concerne un système de distribution de papier en rouleau et le procédé de fabrication d'un tel rouleau.The invention relates to a roll paper dispensing system and the method of manufacturing such a roll.

L'invention concerne plus particulièrement un système de distribution d'une bande de produit absorbant en rouleau, par rotation du rouleau autour d'un axe, du type comportant :

  • un rouleau, formé d'une bande de produit absorbant enroulée, de forme sensiblement cylindrique et délimité axialement par un premier flanc latéral et un second flanc latéral opposé axialement au premier flanc ;
  • un distributeur pour la distribution du produit absorbant en rouleau, du type comportant un bâti et un capot qui est monté mobile par rapport au bâti, entre une position ouverte permettant la mise en place du rouleau dans le distributeur et une position fermée d'utilisation du rouleau ;
  • des moyens pour le maintien et le guidage en rotation du rouleau par rapport au bâti, qui comportent :
    • -- un premier élément de maintien qui est porté par le bâti et qui est apte à être reçu axialement dans un premier logement latéral agencé dans le premier flanc du rouleau, et
    • -- un second élément de guidage et de positionnement qui est porté par le capot de façon fixe en rotation et qui est apte à être reçu axialement dans un second logement latéral agencé dans le second flanc du rouleau.
The invention more particularly relates to a system for dispensing an absorbent strip of roll product, by rotating the roll about an axis, of the type comprising:
  • a roll, formed of a band of rolled absorbent product, of substantially cylindrical shape and defined axially by a first lateral flank and a second lateral flank axially opposite to the first flank;
  • a distributor for dispensing the absorbent roll product, of the type comprising a frame and a cover which is mounted movable relative to the frame, between an open position allowing the introduction of the roll in the dispenser and a closed position of use of the roll;
  • means for maintaining and guiding the roll in rotation relative to the frame, which comprise:
    • a first holding element which is carried by the frame and which is capable of being received axially in a first lateral housing arranged in the first side of the roll, and
    • a second guiding and positioning element which is carried by the cover in a fixed manner in rotation and which is able to be received axially in a second lateral housing arranged in the second side of the roll.

On connaît de nombreux exemples de systèmes de distribution de ce type.Many examples of distribution systems of this type are known.

Il s'agit pour la plupart de systèmes qui permettent la distribution de papier à usage unique, notamment pour le grand public et les collectivités, connu sous le nom de papier hygiénique, rouleau d'essuyage, rouleau d'essuie tout ou rouleau d'essuie mains.Most of these are systems that allow the distribution of single-use paper, particularly for the general public and communities, known as toilet paper, wiping roll, wiper roll or roll of paper. hand towel.

Pour garantir la qualité du produit distribué, certains fabricants ont développé des systèmes dits « captifs », qui sont aptes à n'accueillir qu'un seul type de produit ou qu'une famille de produits déterminés.To ensure the quality of the product distributed, some manufacturers have developed so-called "captive" systems, which are able to accommodate only one type of product or a family of specific products.

Pour rendre le système « captif », différents systèmes existent.To make the system "captive", different systems exist.

L'état de la technique comporte notamment des embouts plastiques d'une forme spéciale, qui sont placés par exemple à l'intérieur d'un mandrin sur lequel le produit est enroulé et qui coopèrent avec des supports complémentaires placés dans le distributeur. Sans ces embouts, le rouleau ne peut pas être mis en place ou ne peut pas être utilisé correctement.The state of the art includes plastic tips of a special shape, which are placed for example inside a mandrel on which the product is wound and which cooperate with complementary supports placed in the dispenser. Without these tips, the roller can not be put in place or can not be used properly.

Le principal inconvénient de ce type de dispositif est d'ordre économique : il faut fabriquer des éléments additionnels qui n'ont pas un intérêt majeur pour l'utilisateur du système et qui seront inutilisables une fois le rouleau terminé. Ces pièces plastiques représentent donc un surcoût et un déchet supplémentaire une fois le rouleau terminé.The main disadvantage of this type of device is economic: it is necessary to manufacture additional elements that do not have a major interest for the user of the system and that will be unusable once the roll is completed. These plastic parts therefore represent additional cost and additional waste once the roll is completed.

On connaît aussi des rouleaux comportant des flancs dotés d'une gorge qui coopère chacune avec un support spécial : un rouleau sans gorge ne peut être maintenu dans le distributeur ou bien le capot de ce dernier ne peut pas se fermer, du fait de l'encombrement différent du rouleau sans gorge par rapport à un rouleau avec des gorges.Also known are rollers having flanks with a groove each cooperating with a special support: a roll without groove can not be held in the dispenser or the hood of the latter can not close, because of the different size of the roll without throat compared to a roll with grooves.

Ce type de système est efficace mais la fabrication de ces orifices nécessite des installations de transformation du rouleau complexes.This type of system is effective but the manufacture of these ports requires complex roller processing facilities.

Dans le but de remédier à cet inconvénient, le document EP-A1-1,782,722 propose un système de distribution, qui comporte une bande de produit absorbant en rouleau et un distributeur.In order to remedy this drawback, the document EP-A1-1,782,722 proposes a distribution system, which comprises a strip of absorbent product roll and a distributor.

Le distributeur comporte un bâti et un capot qui est monté mobile par rapport au bâti, entre une position ouverte pour la mise en place du rouleau dans le distributeur et une position fermée d'utilisation du rouleau.The dispenser comprises a frame and a cover which is mounted movable relative to the frame, between an open position for the introduction of the roll in the dispenser and a closed position of use of the roll.

Le distributeur comporte un premier élément de guidage et de positionnement qui est porté par le capot et qui est apte à être reçu axialement dans un premier logement agencé au centre d'un premier flanc du rouleau, et un second élément de maintien qui est porté par le bâti et qui est apte à être reçu axialement dans un second logement agencé au centre d'un second flanc du rouleau.The distributor comprises a first guide and positioning element which is carried by the cover and which is adapted to be received axially in a first housing arranged in the center of a first side of the roll, and a second holding element which is carried by the frame and which is adapted to be received axially in a second housing arranged in the center of a second side of the roll.

Le premier élément de guidage et de positionnement comporte un tronçon lisse globalement tronconique de section décroissante vers l'intérieur du distributeur qui est apte à être reçu axialement dans le premier logement associé du rouleau.The first guide and positioning element comprises a generally frustoconical smooth section of decreasing section towards the inside of the dispenser which is adapted to be received axially in the first associated housing of the roller.

Selon ce système, un rouleau qui ne comporte pas un logement de forme complémentaire tronconique à celle du tronçon lisse, s'opposera à la fermeture du capot du distributeur, du fait de l'encombrement différent du rouleau sans logement complémentaire par rapport à un rouleau avec un logement complémentaire tronconique.According to this system, a roll which does not comprise a frustoconical complementary shape of housing to that of the smooth section, will oppose the closure of the distributor cover, because of the different dimensions of the roll without complementary housing with respect to a roller with a frustoconical complementary housing.

Toutefois, le tronçon lisse est susceptible d'être enfoncé dans le flanc du rouleau qui ne comporte pas de logement complémentaire, en forçant la fermeture du capot de manière à déformer le flanc du rouleau.However, the smooth section is likely to be driven into the side of the roll which has no complementary housing, forcing the closing of the cover so as to deform the sidewall of the roll.

Malgré les frottements entre le flanc ainsi déformé du rouleau et le tronçon lisse, le rouleau risque d'être apte à tourner autour de son axe de rotation en glissant sur le tronçon lisse, et le système est alors utilisable, malgré des conditions dégradées de fonctionnement.Despite the friction between the thus deformed side of the roll and the smooth section, the roller may be able to rotate about its axis of rotation by sliding on the smooth section, and the system is then usable, despite degraded operating conditions .

Pour remédier à ces inconvénients, l'invention propose un moyen économique permettant de rendre captif le couple « distributeur, rouleau de papier » sans ajouter au rouleau d'éléments additionnels.To overcome these disadvantages, the invention provides an economical means to make captive the couple "distributor, paper roll" without adding to the roll of additional elements.

De plus, l'invention propose un système de distribution comportant des moyens d'opposition à la rotation d'un rouleau qui ne comporte pas de logement complémentaire.In addition, the invention proposes a dispensing system comprising means for opposing the rotation of a roll which does not comprise a complementary housing.

Dans ce but, l'invention propose un système du type décrit précédemment, caractérisé en ce que ledit second élément de guidage et de positionnement comporte au moins une portion en saillie sur laquelle une paroi interne du second logement est apte à glisser pour le guidage en rotation du rouleau si le rouleau présente une forme complémentaire et qui est apte à pénétrer dans la bande de produit constituant le rouleau si le rouleau ne présente pas de forme complémentaire afin d' en empêcher sa rotation .For this purpose, the invention proposes a system of the type described above, characterized in that said second guide and positioning element comprises at least one projecting portion on which an inner wall of the second housing is able to slide for the guidance in rotation of the roll if the roll has a complementary shape and which is able to penetrate into the product strip constituting the roll if the roll does not have a complementary shape in order to prevent its rotation.

Selon d'autres caractéristiques du système :

  • la portion en saillie comporte au moins une plaque dont un bord externe d'attaque est au moins en partie sensiblement parallèle à la paroi interne du second logement, de sorte que ladite paroi interne du second logement est apte à glisser en rotation sur ledit bord de la plaque si le rouleau est complémentaire ;
  • le bord d'attaque de la plaque est de forme convexe pour favoriser le glissement sur la paroi interne du second logement du rouleau complémentaire ;
  • la plaque comporte au moins une entaille qui s'étend axialement depuis le bord d'attaque de ladite plaque et qui est apte à emprisonner un mandrin d'un rouleau non complémentaire ;
  • la portion en saillie comporte une pluralité de plaques qui s'étendent radialement, axialement et symétriquement autour de l'axe de rotation du rouleau et de façon régulière angulairement ;
  • chaque plaque est de section décroissante vers l'intérieur du distributeur, de sorte que le bord d'attaque de chaque plaque s'étend de façon oblique vers l'axe de rotation du rouleau.
According to other characteristics of the system:
  • the protruding portion comprises at least one plate of which an external leading edge is at least partly substantially parallel to the inner wall of the second housing, so that said inner wall of the second housing is able to slide in rotation on said edge of the plate if the roller is complementary;
  • the leading edge of the plate is of convex shape to promote sliding on the inner wall of the second housing of the complementary roller;
  • the plate comprises at least one notch which extends axially from the leading edge of said plate and which is capable of trapping a mandrel of a non-complementary roller;
  • the protruding portion comprises a plurality of plates which extend radially, axially and symmetrically about the axis of rotation of the roller and angularly regular;
  • each plate is of decreasing section towards the inside of the dispenser, so that the leading edge of each plate extends obliquely towards the axis of rotation of the roller.

D'autres caractéristiques et avantages apparaîtront au cours de la lecture de la description détaillée qui va suivre pour la compréhension de laquelle on se reportera aux dessins en annexe parmi lesquels :

  • la figure 1 est une vue de face en coupe longitudinale du système de distribution selon l'invention ;
  • la figure 2 est une vue de détail en perspective, qui illustre un premier élément de guidage et de positionnement du rouleau de la figure 1 ;
  • la figure 3a est une vue en perspective d'un rouleau de papier selon l'invention, illustrant un premier flanc comportant un logement conforme à un mode de réalisation de l'invention ;
  • la figure 3b est une vue identique à la figure 3a, illustrant un second flanc du rouleau selon l'invention ;
  • la figure 4 est une vue en coupe longitudinale d'un système de distribution, qui comporte un rouleau selon l'art antérieur ;
  • la figure 5 est une vue de détail en perspective, qui illustre le premier élément de guidage et de positionnement du rouleau de la figure 1, selon une variante de réalisation de l'invention.
Other features and advantages will appear during the reading of the detailed description which follows for the understanding of which reference will be made to the attached drawings among which:
  • the figure 1 is a front view in longitudinal section of the dispensing system according to the invention;
  • the figure 2 is a detail view in perspective, which illustrates a first element for guiding and positioning the roll of the figure 1 ;
  • the figure 3a is a perspective view of a paper roll according to the invention, illustrating a first side including a housing according to an embodiment of the invention;
  • the figure 3b is a view identical to the figure 3a illustrating a second sidewall of the roll according to the invention;
  • the figure 4 is a longitudinal sectional view of a dispensing system, which comprises a roller according to the prior art;
  • the figure 5 is a detail view in perspective, which illustrates the first element for guiding and positioning the roll of the figure 1 according to an alternative embodiment of the invention.

Dans la description qui va suivre, faite à titre non limitatif, des composants identiques, analogues ou similaires seront désignés par les mêmes chiffres de référence.In the following description, made without limitation, identical, similar or similar components will be designated by the same reference numerals.

Dans la description et les revendications, on adoptera, à titre non limitatif, les orientations verticale, longitudinale et transversale selon l'orientation du trièdre L, V, T indiqué sur les figures.In the description and the claims, the vertical, longitudinal and transverse orientations according to the orientation of the trihedron L, V, T indicated in the figures will be adopted, without being limiting.

On a représenté à la figure 1, un système 10 de distribution d'une bande de produit absorbant.We have shown figure 1 , a system 10 for dispensing an absorbent product strip.

Le produit absorbant est par exemple une bande de papier 12, comme du papier hygiénique, qui se présente sous la forme d'un rouleau 14 de forme cylindrique d'axe A.The absorbent product is, for example, a paper strip 12, such as toilet paper, which is in the form of a cylindrical roller 14 of axis A.

Le rouleau 14 est délimité axialement par un premier flanc 16a et un second flanc 16b latéral opposés axialement entre eux.The roller 14 is delimited axially by a first sidewall 16a and a second sidewall 16b opposite axially between them.

Le rouleau 14 comporte un premier logement 24a, illustré à la figure 3b, qui est agencé au centre du premier flanc 16a du rouleau 14 et qui comporte une paroi interne.The roller 14 has a first housing 24a, shown in FIG. figure 3b which is arranged in the center of the first flank 16a of the roller 14 and which has an inner wall.

De même, le rouleau 14 comporte un second logement 24b, illustré à la figure 3a, qui est agencé au centre du second flanc 16b du rouleau 14 et qui comporte une paroi interne 25b.Similarly, the roller 14 has a second housing 24b, shown in FIG. figure 3a which is arranged in the center of the second flank 16b of the roller 14 and which has an inner wall 25b.

Le premier logement 24a et le second logement 24b sont ici opposés axialement et reliés entre eux par une cavité 24 globalement tubulaire qui s'étend selon l'axe A du rouleau 14.The first housing 24a and the second housing 24b are here opposed axially and interconnected by a generally tubular cavity 24 extending along the axis A of the roller 14.

Le système 10 de distribution comporte par ailleurs un distributeur 18 pour la distribution du papier 12, laquelle est réalisée par rotation du rouleau 14 autour de l'axe A.The distribution system 10 further comprises a distributor 18 for the distribution of the paper 12, which is made by rotating the roller 14 about the axis A.

A cet effet, le distributeur comporte un bâti 20 qui, avantageusement, est fixé solidairement à un mur (non représenté).For this purpose, the dispenser comprises a frame 20 which, advantageously, is fixed integrally to a wall (not shown).

Le distributeur 18 comporte un capot 28 qui est monté mobile par rapport au bâti 20 à l'aide de moyens de rotation 30.The distributor 18 comprises a cover 28 which is mounted to move relative to the frame 20 by means of rotation 30.

Les moyens de rotation 30 consistent ici en une liaison pivot d'axe B du type charnière.The rotation means 30 here consist of a pivot link B axis hinge type.

Ainsi, le capot 28 est apte à s'ouvrir et à se fermer grâce à un mouvement de rotation autour d'un axe B transversal et orthogonal à l'axe A de rotation du rouleau 14.Thus, the cover 28 is able to open and close thanks to a rotational movement about a transverse axis B orthogonal to the axis A of rotation of the roller 14.

De ce fait, le capot 28 est apte à occuper une position ouverte pour la mise en place du rouleau 14 et une position fermée pour la distribution du papier 12, illustrée à la figure 1.As a result, the cover 28 is able to occupy an open position for the positioning of the roll 14 and a closed position for the distribution of the paper 12, illustrated in FIG. figure 1 .

A titre non limitatif, le bâti 20 et le capot 28 peuvent être une pièce unique, auquel cas le bâti 20 et le capot 28 seraient par exemple raccordés entre eux par une portion souple apte à assurer l'ouverture du capot 28 par rapport au bâti 20.Without limitation, the frame 20 and the cover 28 may be a single piece, in which case the frame 20 and the cover 28 are for example interconnected by a flexible portion adapted to ensure the opening of the cover 28 relative to the frame 20.

De manière connue, le distributeur 18 comporte des moyens 22 pour le maintien et le guidage en rotation du rouleau 14.In known manner, the distributor 18 comprises means 22 for holding and guiding the rotation of the roller 14.

Comme illustré sur la figure 1, les moyens 22 pour le maintien et le guidage en rotation du rouleau 14 comportent un premier élément 22a de maintien qui est porté par le bâti 20 et qui est apte à être reçu axialement dans le premier logement 24a de associé du rouleau 14.As illustrated on the figure 1 , the means 22 for holding and guiding the rotation of the roller 14 comprise a first holding member 22a which is carried by the frame 20 and which is capable of being received axially in the first housing 24a associated with the roller 14.

Le premier élément 22a de maintien est du type « harpon », connu de l'art antérieur, et est de forme globalement cylindrique.The first holding element 22a is of the "harpoon" type, known from the prior art, and is of generally cylindrical shape.

Dans une première extrémité axiale, le premier élément 22a de maintien comporte un tronçon 32 d'accrochage qui est agencé axialement selon l'axe A de rotation du rouleau 14, dans le premier logement 24a du premier flanc 16a du rouleau 14.In a first axial end, the first retaining element 22a comprises a hooking section 32 which is arranged axially along the axis A of rotation of the roller 14, in the first housing 24a of the first sidewall 16a of the roller 14.

Le tronçon 32 d'accrochage comporte des éléments 34 saillants radialement, comme des ailettes 34, qui s'étendent selon une direction sensiblement oblique par rapport à l'axe A longitudinal du rouleau 14, de manière que les ailettes 34 s'opposent au retrait du premier élément 22a de maintien lorsque ce dernier est enfoncé dans le rouleau 14, tel qu'illustré sur la figure 1 par exemple.The hooking section 32 comprises radially projecting elements 34, such as fins 34, which extend in a direction that is substantially oblique with respect to the longitudinal axis A of the roll 14, so that the fins 34 oppose the withdrawal. of the first holding member 22a when the latter is pressed into the roll 14, as illustrated in FIG. figure 1 for example.

Les ailettes 34 sont préférentiellement libres en rotation selon l'axe A par rapport au tronçon 32 d'accrochage et le tronçon 32 est fixe par rapport au bâti 20.The fins 34 are preferably free to rotate along the axis A relative to the attachment section 32 and the section 32 is fixed relative to the frame 20.

De plus, le tronçon 32 d'accrochage comporte un chanfrein 36 pour faciliter l'insertion du premier élément 22a de maintien dans le rouleau 14.In addition, the attachment section 32 includes a chamfer 36 to facilitate the insertion of the first element 22a for holding in the roller 14.

Le tronçon 32 d'accrochage du premier élément 22a de maintien présente de préférence une longueur axiale l3 égale ou inférieure au tiers de la longueur 12 axiale du rouleau 14.The hooking portion 32 of the first holding member 22a preferably has an axial length 13 equal to or less than one third of the axial length 12 of the roll 14.

Dans une seconde extrémité, le premier élément 22a de maintien comporte un tronçon 38 fixé dans un alésage 40 du bâti 20 selon l'axe A longitudinal du rouleau 14.In a second end, the first holding element 22a comprises a section 38 fixed in a bore 40 of the frame 20 along the longitudinal axis A of the roller 14.

De plus, le premier élément 22a de maintien comporte un épaulement 42 qui coopère avec un siège annulaire 44 de l'alésage 40 du bâti 20 de manière à empêcher le déplacement axial selon l'axe A du premier élément 22a de maintien vers l'extérieur du distributeur 18.In addition, the first retaining element 22a comprises a shoulder 42 which cooperates with an annular seat 44 of the bore 40 of the frame 20 so as to prevent the axial displacement along the axis A of the first element 22a for holding outwards of the distributor 18.

De façon complémentaire, les moyens 22 pour le maintien et le guidage en rotation du rouleau 14 comportent un second élément 22b de maintien qui est porté par le capot 18 mobile.In a complementary manner, the means 22 for holding and guiding the rotation of the roller 14 comprise a second holding member 22b which is carried by the movable cover 18.

Le second élément 22b de guidage et de positionnement comporte une portion en saillie 26 qui s'étend axialement depuis une face interne 29 du capot 28 et qui est fixe en rotation.The second element 22b for guiding and positioning comprises a projecting portion 26 which extends axially from an inner face 29 of the cover 28 and which is fixed in rotation.

La face interne 29 du capot 28 est agencée en vis à vis du premier flanc 16a du rouleau 14 lorsque le capot 28 occupe sa position fermée, de sorte que la portion en saillie 26 est apte à être reçue axialement dans le second logement 24b du rouleau 14.The inner face 29 of the cover 28 is arranged opposite the first side 16a of the roller 14 when the cover 28 is in its closed position, so that the projecting portion 26 is adapted to be received axially in the second housing 24b of the roller 14.

La portion en saillie 26 est ici de forme globalement conique de section décroissante vers l'intérieur du distributeur 18, et elle comporte une pluralité de plaques 48, ou dents.The protruding portion 26 is here of generally conical inwardly decreasing section of the dispenser 18, and it has a plurality of plates 48, or teeth.

Comme l'illustre la figure 2, les plaques 48 sont réparties angulairement autour de l'axe A de façon régulière et de façon symétrique selon l'axe A, en formant une étoile.As illustrated by figure 2 , the plates 48 are distributed angularly around the axis A in a regular and symmetrical manner along the axis A, forming a star.

Chaque plaque 48 est de section décroissante vers l'intérieur du distributeur.Each plate 48 is of decreasing section towards the inside of the dispenser.

De plus, chaque plaque 48 est délimitée par un bord d'attaque 50 qui s'étend de façon oblique vers l'axe A et qui est apte à coopérer en glissant sur la paroi interne 25b du second logement 24b du rouleau 14.In addition, each plate 48 is delimited by a leading edge 50 which extends obliquely towards the axis A and which is able to cooperate by sliding on the inner wall 25b of the second housing 24b of the roller 14.

A cet effet, le second logement 24b présente une forme de révolution autour de l'axe A qui est complémentaire à celle de l'ensemble constitué par les plaques 48, ici une forme conique ou tronconique, pour permettre la rotation du rouleau 14 autour de l'axe A en glissant sur les plaques 48.For this purpose, the second housing 24b has a shape of revolution about the axis A which is complementary to that of the assembly constituted by the plates 48, here a conical or frustoconical shape, to allow the rotation of the roller 14 around the axis A sliding on the plates 48.

Avantageusement, la forme globalement conique de l'ensemble constitué par les plaques 48 permet un auto-centrage du rouleau 14 par rapport au capot 28.Advantageously, the generally conical shape of the assembly constituted by the plates 48 allows self-centering of the roller 14 with respect to the cover 28.

Plus particulièrement, le second logement 24b présente un angle a2 de révolution par rapport à l'axe A qui est sensiblement identique à un angle a1 du bord d'attaque 50 de chaque plaque 48 par rapport à l'axe A.More particularly, the second housing 24b has an angle a2 of revolution relative to the axis A which is substantially identical to an angle a1 of the leading edge 50 of each plate 48 relative to the axis A.

A titre indicatif, l'angle a1 optimal peut être compris entre 30° et 55°.As an indication, the optimal angle a1 can be between 30 ° and 55 °.

Avantageusement, le second logement 24b présente un diamètre d1 maximum inférieur ou égal au tiers du diamètre d2 du rouleau 14 neuf.Advantageously, the second housing 24b has a maximum diameter d1 less than or equal to one third of the diameter d2 of the new roll 14.

Lorsque le capot 28 occupe sa position fermée, chaque plaque 48 s'étend axialement depuis le premier flanc 16a du rouleau 14 dans le second logement 24b du rouleau 14, sur une longueur I1 inférieure ou égale au tiers de la longueur I2 axiale totale, ou laize, du rouleau 14.When the hood 28 is in its closed position, each plate 48 extends axially from the first sidewall 16a of the roll 14 into the second housing 24b of the roll 14, over a length I1 less than or equal to one-third of the total axial length I2, or width, of the roll 14.

Afin de favoriser le glissement de la paroi interne 25b du second logement 24b sur les plaques 48 lors de la rotation du rouleau 14, et de ne pas abîmer la bande de produit absorbant 12 du rouleau 14 en contact avec les plaques 48, le bord d'attaque 50 de chaque plaque 48 est de forme convexe arrondie, sans angle vif.In order to promote the sliding of the inner wall 25b of the second housing 24b on the plates 48 during the rotation of the roller 14, and not to damage the strip of absorbent product 12 of the roller 14 in contact with the plates 48, the edge Attack 50 of each plate 48 is rounded convex shape, without sharp angle.

De même, les plaques 48 convergent axialement vers l'axe A pour constituer un sommet 46 de forme arrondie sans angle vif.Similarly, the plates 48 converge axially towards the axis A to form a vertex 46 of rounded shape without sharp angle.

Ainsi, les plaques 48 de la portion en saillie 26 sont aptes à remplir une première fonction de guidage et de positionnement du rouleau 14, si le rouleau 14 est un rouleau 14 dit complémentaire.Thus, the plates 48 of the protruding portion 26 are able to fulfill a first function of guiding and positioning the roller 14, if the roller 14 is a roller 14 said complementary.

Le rouleau 14 représenté aux figures 1, 3a et 3b est un rouleau 14 complémentaire.The roller 14 shown in figures 1 , 3a and 3b is a complementary roll 14.

On entend par rouleau 14 complémentaire, un rouleau 14 dont le second logement 24b présente une forme de révolution qui est complémentaire à la forme de la portion en saillie 26 et des plaques 48, ici une forme globalement conique.By complementary roller 14 is meant a roller 14 whose second housing 24b has a shape of revolution which is complementary to the shape of the projecting portion 26 and plates 48, here a generally conical shape.

Selon un autre aspect, les plaques 48 de la portion en saillie 26 sont apte à remplir une fonction de blocage en rotation du rouleau 14, si le rouleau 14 est non complémentaire.In another aspect, the plates 48 of the protruding portion 26 are capable of performing a rotational locking function of the roller 14, if the roller 14 is non-complementary.

On entend par rouleau non complémentaire un rouleau 15 dont le second logement 24b présente une forme qui n'est pas complémentaire à la forme de la portion en saillie 26, comme le rouleau 15 illustré à la figure 4.By non-complementary roll is meant a roll 15 whose second housing 24b has a shape which is not complementary to the shape of the protruding portion 26, such as the roll 15 illustrated in FIG. figure 4 .

On a illustré à la figure 4 la fonction de blocage des plaques 48 de la portion en saillie 26.We illustrated at the figure 4 the blocking function of the plates 48 of the protruding portion 26.

Lorsque le capot 28 est entraîné vers sa position fermée, les plaques 48 de la portion en saillie 26 du second élément 22b de guidage et de positionnement pénètrent axialement en partie dans le flanc 16b du rouleau 15 non complémentaire, empêchant la fermeture du capot 28.When the cover 28 is driven to its closed position, the plates 48 of the projecting portion 26 of the second guide and positioning member 22b penetrate axially partly into the flank 16b of the non-complementary roller 15, preventing closure of the hood 28.

Dans l'hypothèse où le capot 28 atteint sa position fermée, les plaques 48 s'opposent à la rotation du rouleau 15 non complémentaire autour de l'axe A, garantissant ainsi la captivité du système 10.In the event that the cover 28 reaches its closed position, the plates 48 oppose the rotation of the non-complementary roll 15 about the axis A, thereby guaranteeing the captivity of the system 10.

Ainsi, une telle conception permet un agencement et un positionnement aisé du rouleau 14 complémentaire dans le distributeur 18, tout en empêchant la distribution de la bande de produit 12 du rouleau 15 non complémentaire.Thus, such a design allows easy arrangement and positioning of the complementary roll 14 in the dispenser 18, while preventing dispensing of the product web 12 from the non-complementary roll 15.

L'invention concerne aussi un procédé de fabrication du rouleau 14 complémentaire.The invention also relates to a method of manufacturing the complementary roll 14.

Le procédé de fabrication du rouleau 14 complémentaire comporte une étape au cours de laquelle on déforme axialement un flanc du rouleau 14, ici le second flanc 16b, pour former le second logement 24b au moyen d'un outil (non représenté) mâle de forme par exemple tronconique mû par une machine de type presse, réalisant un écrasement des plis du papier 12 au centre du second flanc 16b du rouleau 14, de manière que le second logement 24b est apte à coopérer par glissement sur les plaques 48 du second élément 22b de guidage et de positionnement.The manufacturing process of the complementary roller 14 comprises a step during which is deformed axially a sidewall of the roller 14, here the second sidewall 16b, to form the second housing 24b by means of a tool (not shown) male shaped by frustoconical example driven by a press-type machine, crushing the folds of the paper 12 in the center of the second flank 16b of the roll 14, so that the second housing 24b is able to cooperate by sliding on the plates 48 of the second element 22b of guidance and positioning.

A titre indicatif, le second logement 24b ainsi formé peut avoir une profondeur maximale p1 égale au tiers de la longueur I2 axiale du rouleau 14 complémentaire, et de préférence égale au cinquième de cette longueur I2 de façon à ne pas trop déformer le rouleau 14.As an indication, the second housing 24b thus formed may have a maximum depth p1 equal to one third of the axial length I2 of the complementary roller 14, and preferably equal to one fifth of this length I2 so as not to deform the roller 14 too much.

Pour la même raison, le diamètre d1 maximal du second logement 24b est inférieur à la moitié du diamètre d2 du rouleau 14, et de préférence inférieur ou égal au tiers du diamètre d2 du rouleau 14.For the same reason, the maximum diameter d1 of the second housing 24b is less than half the diameter d2 of the roll 14, and preferably less than or equal to one third of the diameter d2 of the roll 14.

La conicité du second logement 24b ainsi réalisée n'altère pas les propriétés d'usage des feuilles de papier 12 formant le rouleau 14.The conicity of the second housing 24b thus produced does not affect the properties of use of the paper sheets 12 forming the roller 14.

Selon une variante de réalisation, le premier élément 22a de maintien comporte une forme sensiblement identique à celle du second élément 22b de guidage et de positionnement, éventuellement de dimensions différentes.According to an alternative embodiment, the first retaining element 22a has a shape substantially identical to that of the second element 22b for guiding and positioning, possibly of different dimensions.

Selon cette variante de réalisation, le rouleau 14 complémentaire comporte un premier logement 24a et un second logement 24b de forme conique dans chacun de ses flancs 16a et 16b respectivement.According to this embodiment variant, the complementary roll 14 comprises a first housing 24a and a second housing 24b of conical shape in each of its flanks 16a and 16b respectively.

Sans sortir du cadre de l'invention, les moyens 22 pour le maintien et le guidage en rotation du rouleau 14 complémentaire peuvent faire partie d'un élément structurel non lié de façon permanente au bâti 20 du distributeur 18.Without departing from the scope of the invention, the means 22 for holding and guiding the complementary roll 14 in rotation may be part of a structural element that is not permanently bonded to the frame 20 of the distributor 18.

Selon une autre variante de réalisation illustrée à la figure 5, chaque plaque 48 comporte une pluralité d'entailles 52 dont chacune s'étend axialement depuis le bord d'attaque 50 de la plaque 48 associée.According to another variant embodiment illustrated in figure 5 each plate 48 has a plurality of notches 52, each of which extends axially from the leading edge 50 of the associated plate 48.

Ainsi, si le rouleau est un rouleau 15 non complémentaire, comme illustré à la figure 4, une partie des couches superposées de la bande de produit 12 absorbant du rouleau 15 non complémentaire sont emprisonnées dans les entailles 52 des plaques 48 lorsque le capot 28 est entraîné vers sa position fermée.Thus, if the roll is a non-complementary roll, as illustrated in FIG. figure 4 a portion of the superimposed layers of the non-complementary roll 15 material web are trapped in the notches 52 of the plates 48 as the hood 28 is driven to its closed position.

De même, s'il s'agit d'un rouleau non complémentaire comportant un mandrin (non représenté), par exemple un mandrin cylindrique d'axe A en carton, les entailles 52 sont aptes à emprisonner le mandrin lorsque le capot 28 est entraîné vers sa position fermée.Similarly, if it is a non-complementary roll comprising a mandrel (not shown), for example a cylindrical mandrel of axis A cardboard, the notches 52 are able to trap the mandrel when the cap 28 is driven towards its closed position.

A cet effet, les entailles 52 sont agencées en plusieurs séries, les entailles 52 d'une même série étant agencées en cercle autour de l'axe A de rotation du rouleau 14, de sorte que chaque série d'entailles 52 est apte à emprisonner un mandrin d'un diamètre standard déterminé.For this purpose, the notches 52 are arranged in several series, the notches 52 of the same series being arranged in a circle around the axis A of rotation of the roller 14, so that each series of notches 52 is able to trap a mandrel of a determined standard diameter.

L'emprisonnement des couches de la bande de produit 12 et/ou du mandrin rend la fermeture du capot 28 difficile et/ou la rotation du rouleau non complémentaire quasiment impossible.The imprisonment of the layers of the product strip 12 and / or the mandrel makes the closure of the cover 28 difficult and / or the rotation of the non-complementary roll almost impossible.

Selon les exemples de réalisation décrits ci-dessus, la fonction de guidage en rotation du rouleau 14 complémentaire et la fonction de blocage en rotation du rouleau 15 non complémentaire sont remplies par les mêmes éléments, ici les plaques 48 de la portion en saillie 26.According to the embodiments described above, the function of guiding the complementary roller 14 in rotation and the locking function in rotation of the non-complementary roller 15 are filled by the same elements, here the plates 48 of the projecting portion 26.

Toutefois, ces deux fonctions peuvent être dissociées, par exemple la fonction de guidage en rotation peut être remplie par un élément lisse sur lequel la paroi interne 25b du second logement 24b est apte à glisser, et la fonction de blocage en rotation peut être remplie par une pluralité d'éléments saillants qui sont aptes à pénétrer dans la bande de produit 12 du rouleau 15 non complémentaire, afin de s'opposer à la rotation de ce rouleau 15.However, these two functions can be dissociated, for example the rotational guiding function can be filled by a smooth element on which the inner wall 25b of the second housing 24b is able to slide, and the rotational locking function can be filled by a plurality of projecting elements which are able to penetrate into the product strip 12 of the non-complementary roll 15, in order to oppose the rotation of this roll 15.

Claims (6)

Système (10) de distribution d'une bande de produit absorbant en rouleau (14), par rotation du rouleau (14) autour d'un axe (A), du type comportant : - un rouleau (14), formé d'une bande de produit absorbant (12) enroulée, de forme sensiblement cylindrique et délimité axialement par un premier flanc (16a) latéral et un second flanc (16b) latéral opposé axialement au premier flanc (16a) ; - un distributeur (18) pour la distribution du produit absorbant (12) en rouleau (14), du type comportant un bâti (20) et un capot (28) qui est monté mobile par rapport au bâti (20), entre une position ouverte permettant la mise en place du rouleau (14) dans le distributeur (18) et une position fermée d'utilisation du rouleau (14) ; - des moyens (22) pour le maintien et le guidage en rotation du rouleau (14) par rapport au bâti (20), qui comportent : -- un premier élément (22a) de maintien qui est porté par le bâti (20) et qui est apte à être reçu axialement dans un premier logement (24a) latéral agencé dans le premier flanc (16a) du rouleau (14), et -- un second élément (22b) de guidage et de positionnement qui est porté par le capot (28) de façon fixe en rotation et qui est apte à être reçu axialement dans un second logement (24b) latéral agencé dans le second flanc (16b) du rouleau (14), caractérisé en ce que ledit second élément (22b) de guidage et de positionnement comporte au moins une portion en saillie (26) sur laquelle une paroi interne (25b) du second logement (24b) est apte à glisser pour le guidage en rotation du rouleau (14) si le rouleau (14) présente une forme complémentaire , et qui est apte à pénétrer dans la bande de produit (12) constituant le rouleau (14) si le rouleau (15) ne présente pas de forme complémentaire afin d'en empêcher la rotation.System (10) for dispensing a web of absorbent roll product (14) by rotating the roll (14) about an axis (A), of the type comprising: - A roll (14), formed of a strip of absorbent product (12) wound, of substantially cylindrical shape and defined axially by a first side flank (16a) and a second side flank (16b) axially opposed to the first flank (16a). ); - a distributor (18) for dispensing the absorbent product (12) roll (14), of the type comprising a frame (20) and a cover (28) which is mounted to move relative to the frame (20), between a position open method for placing the roll (14) in the dispenser (18) and a closed position for using the roll (14); means (22) for maintaining and guiding the roll (14) in rotation relative to the frame (20), comprising: a first holding element (22a) which is carried by the frame (20) and which is capable of being received axially in a first lateral housing (24a) arranged in the first sidewall (16a) of the roller (14), and a second guiding and positioning element (22b) which is carried by the cover (28) fixedly in rotation and which can be received axially in a second lateral housing (24b) arranged in the second flank (16b); ) of the roll (14), characterized in that said second guide and positioning member (22b) has at least one projecting portion (26) on which an inner wall (25b) of the second housing (24b) is slidable for rotational guidance of the roll (14) if the roll (14) has a complementary shape, and which is able to penetrate the product web (12) constituting the roll (14) if the roll (15) does not have a complementary shape so as to prevent rotation Système (10) de distribution selon la revendication 1, caractérisé en ce que la portion en saillie (26) comporte au moins une plaque (48) dont un bord (50) externe d'attaque est au moins en partie sensiblement parallèle à la paroi interne (25b) du second logement (24b), de sorte que ladite paroi interne (25b) du second logement (24b) est apte à glisser en rotation sur ledit bord (50) de la plaque (48) si le rouleau (14) est complémentaire.Dispensing system (10) according to claim 1, characterized in that the projecting portion (26) comprises at least one plate (48) whose outer edge (50) of attack is at least partly substantially parallel to the wall internal (25b) of the second housing (24b), so that said inner wall (25b) of the second housing (24b) is rotatable on said edge (50) of the plate (48) if the roller (14) is complementary. Système (10) de distribution selon la revendication 2, caractérisé en ce que le bord (50) d'attaque de la plaque (48) est de forme convexe pour favoriser le glissement sur la paroi interne (25b) du second logement (24b) du rouleau (14) complémentaire.Dispensing system (10) according to claim 2, characterized in that the leading edge (50) of the plate (48) is of convex shape to promote sliding on the inner wall (25b) of the second housing (24b). roller (14) complementary. Système (10) de distribution selon l'une quelconque des revendications 2 et 3, caractérisé en ce que la plaque (48) comporte au moins une entaille (52) qui s'étend axialement depuis le bord d'attaque (50) de ladite plaque (48) et qui est apte à empêcher la rotation d'un mandrin d'un rouleau non complémentaire.Dispensing system (10) according to any one of claims 2 and 3, characterized in that the plate (48) comprises at least one notch (52) which extends axially from the leading edge (50) of said plate (48) and which is adapted to prevent rotation of a mandrel of a non-complementary roll. Système (10) de distribution selon l'une quelconque des revendications précédentes, caractérisé en ce que la portion en saillie (26) comporte une pluralité de plaques (48) qui s'étendent radialement, axialement et symétriquement autour de l'axe (A) de rotation du rouleau (14) et de façon régulière angulairement.Dispensing system (10) according to one of the preceding claims, characterized in that the projecting portion (26) has a plurality of plates (48) which extend radially, axially and symmetrically about the axis (A). ) of rotation of the roller (14) and regularly angularly. Système (10) de distribution selon la revendication 5, caractérisé en ce que chaque plaque (48) est de section décroissante vers l'intérieur du distributeur (18), de sorte que le bord d'attaque (50) de chaque plaque (48) s'étend de façon oblique vers l'axe (A) de rotation du rouleau (14).Dispensing system (10) according to claim 5, characterized in that each plate (48) is of decreasing section towards the inside of the distributor (18), so that the leading edge (50) of each plate (48) ) extends obliquely towards the axis (A) of rotation of the roller (14).
EP08291216A 2007-12-24 2008-12-19 System for dispensing paper in rolls Withdrawn EP2074920A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0760333A FR2925283B1 (en) 2007-12-24 2007-12-24 ROLL PAPER DELIVERY SYSTEM, METHOD FOR MANUFACTURING THE SAME, AND PAPER ROLL

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EP2074920A1 true EP2074920A1 (en) 2009-07-01

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EP08291216A Withdrawn EP2074920A1 (en) 2007-12-24 2008-12-19 System for dispensing paper in rolls

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US (1) US7988085B2 (en)
EP (1) EP2074920A1 (en)
CA (1) CA2647409C (en)
EA (1) EA016826B1 (en)
FR (1) FR2925283B1 (en)
MX (1) MX2008015282A (en)

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US20220192441A1 (en) * 2020-12-22 2022-06-23 Cintas Corporate Services, Inc. Paper roll dispenser

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Publication number Publication date
EA016826B1 (en) 2012-07-30
MX2008015282A (en) 2009-06-23
FR2925283B1 (en) 2012-08-31
CA2647409C (en) 2016-04-12
CA2647409A1 (en) 2009-06-24
US20090159735A1 (en) 2009-06-25
FR2925283A1 (en) 2009-06-26
EA200802387A1 (en) 2009-08-28
US7988085B2 (en) 2011-08-02

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