EP1920696A2 - Rollenspindel - Google Patents

Rollenspindel Download PDF

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Publication number
EP1920696A2
EP1920696A2 EP07021613A EP07021613A EP1920696A2 EP 1920696 A2 EP1920696 A2 EP 1920696A2 EP 07021613 A EP07021613 A EP 07021613A EP 07021613 A EP07021613 A EP 07021613A EP 1920696 A2 EP1920696 A2 EP 1920696A2
Authority
EP
European Patent Office
Prior art keywords
tubular means
core
core according
ribs
rolls
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.)
Granted
Application number
EP07021613A
Other languages
English (en)
French (fr)
Other versions
EP1920696A3 (de
EP1920696B1 (de
Inventor
Sandro Pasquini
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.)
Lucart SpA
Original Assignee
CARTIERA LUCCHESE SpA
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 CARTIERA LUCCHESE SpA filed Critical CARTIERA LUCCHESE SpA
Publication of EP1920696A2 publication Critical patent/EP1920696A2/de
Publication of EP1920696A3 publication Critical patent/EP1920696A3/de
Application granted granted Critical
Publication of EP1920696B1 publication Critical patent/EP1920696B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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; ACCESSORIES THEREFOR, e.g. TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/16—Paper towels; Toilet paper; Holders therefor
    • 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
    • B65H75/04—Kinds or types
    • B65H75/08—Kinds or types of circular or polygonal cross-section
    • B65H75/10—Kinds or types of circular or polygonal cross-section without flanges, e.g. cop tubes

Definitions

  • the invention refers to a core for rolls of rollable and unrollable material.
  • rolls of rolled and unrollable materials for use such as, e.g., rolls of kitchen paper or rolls of toilet paper, have a central portion, called core, that is made up of a segment of cylindrical tube made of various materials, such as cardboard or plastic.
  • This core is meant to act both as a support for the spirals of material, normally paper material, rolled to form the roll and as an element that can be coupled at the ends to a dispenser apparatus, so as to allow the roll to turn when a traction is applied at the free end of the rolled material to unroll a section of the latter.
  • This core must have a certain number of characteristics.
  • a first characteristic is the mechanical resistance to crushing and bending in transversal direction to the longitudinal axis of the core, to prevent, in case of crushing, because the diameter of the transversal section of the core is reduced, the spirals forming the roll from disuniting and slipping the one on the other due to a lack of the radial compression force which is generated between the spirals during the rolling of the material to form the roll.
  • a second characteristic which the cores for rolls must have is a very low cost, because these are "disposable" material, meaning intended to be thrown away after the roll of rolled material is finished: for this reason, the cores are made from low-cost materials, such as cardboard or plastic, keeping thicknesses as thin as possible.
  • cores are currently made that comprise a pair of concentric tubular bodies that are joined together by a series of transversal stiffening ribs which develop between the outer surface of the inner tubular body and the inner surface of the outer tubular body.
  • a first drawback is the possibility that in certain conditions of use, the joining ribs between the outer tubular body and the inner tubular body bend, causing the outer tubular body to fold in on the inner one.
  • the inner tubular body which is the only one to provide mechanical resistance in a transversal direction, also bends and inside the core the drawbacks again occur relating to the decomposition of the spirals of material of the roll affecting known cores made up of simple tubular bodies.
  • the ends of the core come away from the sustaining supports and the roll falls from the dispensing position blocking the latter and requiring the intervention of a maintenance operator to restore the operation of the dispensing device.
  • This bending of the stiffening ribs can occur by applying a twisting force between the outer and inner tubular bodies.
  • This twisting force is generated when together with the application of an excessive force of traction on the rolled material, which is transmitted on the outer tubular body, the inner tubular body is prevented or hindered in its free rotation on the supports intended to sustain it.
  • Plastic cores also have the same problem, when the ribs and the concentric tubular bodies have very limited thicknesses to cut the production costs determined by the material.
  • a second drawback of the known cores is that they permit making rolls that have a limited number of spirals of rolled material, because of the limited thicknesses of the materials, and therefore, as has been said, of their low mechanical resistance, and of the overall transversal dimensions the known cores must have to be able in any case to mechanically resist deformations and to sustain, without problems, a limited and predetermined number of spirals.
  • One object of the invention is to improve the prior art.
  • Another object of the invention is to make a core for rolls of rollable material that has a mechanical resistance to the transversal deformation considerably greater than that of known cores and which maintains the possibility of unrolling the rolled material substantially intact.
  • a further object of the invention is to make a core for rolls of rollable material that allows rolling a greater number of spirals of material than that currently possible.
  • a core for rolls of rollable and unrollable material, comprising: first outer tubular means and second inner tubular means, concentric with said first tubular means; first connection ribs placed in between said first outer tubular means and second inner tubular means, characterized in that said second tubular means have at least one second inner diametral rib.
  • the core for rolls of rollable and unrollable material permits avoiding crushing in directions transversal to the longitudinal axis and, consequently, the blockage of the rotation of rolls on the supports intended to sustain the core.
  • the core for rolls further permits being made with inexpensive materials that have very limited thicknesses.
  • the core 1 for rolls of rollable and unrollable material comprises a first outer tubular body 2 and a second inner tubular body 3, coaxial with the first outer tubular body 2.
  • the latter has a cylindrical shape and a round cross section
  • the second inner tubular body 3 can also have a round cross section, as shown in Figure 2, or a polygonal cross section, as shown in Figures from 3 to 6, in which the cross section of the second inner tubular body unit 3 is, by way of example, quadrangular and, more specifically, square, without however ruling out the possibility that this section can have the perimeter of other polygons with several sides.
  • connection ribs 4 are provided, all radially directed and opposite two by two, so as to define a position plane "P" between each pair of opposite ribs 4.
  • a second rib 5 is arranged diametrically inside the second tubular body 3, which, in point of fact, represents a second rib 5 joining two opposite ribs 4 lying on the same position plane "P".
  • a core for rolls of rollable and unrollable material shown in Figures 3 and 4 and indicated by 100 to distinguish it from the previous core 1, this again comprises a first outer tubular body 200 and a second concentric inner tubular body 300, which has a square cross section and which is connected to the first outer tubular body 200 by means of radially directed first ribs 400.
  • the second inner tubular body 300 internally has at least one second rib 500 that joins two alternate vertices and two first ribs 400 opposite one another and which are on a common position plane "P".
  • the core for rolls of rollable and unrollable material therefore has one or more second and third ribs, 400 and 700 respectively, that stiffen the pairs of first ribs 4 and 400 in a longitudinal direction and both the second inner tubular body 3, or 300, and the first outer tubular body 2, or 200, in a transversal direction, both preventing the bending of one with respect to the other, and that crushing occurs in a transversal direction such as to break up the roll formed on the first outer tubular body.
  • This mechanical resistance in transversal direction of the outer tubular body 2, or 200, and of the inner tubular body 3, or 300, also allows increasing the number of spirals of rollable and unrollable material and reducing the thicknesses of the materials used to make the core for rolls.
  • the ends of the latter can be coupled with rotating bilateral supports, e.g. of dispensing devices, ready to be coupled in a conjugated way with the second and third ribs 5, 500 and 700, having, e.g., pre-made cuts to receive the latter.
  • rotating bilateral supports e.g. of dispensing devices

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Rolls And Other Rotary Bodies (AREA)
EP07021613.0A 2006-11-09 2007-11-07 Rollenspindel Active EP1920696B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMO20060023 ITMO20060023U1 (it) 2006-11-09 2006-11-09 Anima per rotoli di materiali arrotolabili e srotolabili

Publications (3)

Publication Number Publication Date
EP1920696A2 true EP1920696A2 (de) 2008-05-14
EP1920696A3 EP1920696A3 (de) 2014-07-02
EP1920696B1 EP1920696B1 (de) 2019-05-08

Family

ID=39033666

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07021613.0A Active EP1920696B1 (de) 2006-11-09 2007-11-07 Rollenspindel

Country Status (2)

Country Link
EP (1) EP1920696B1 (de)
IT (1) ITMO20060023U1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104961002A (zh) * 2015-06-30 2015-10-07 广西金虹环保包装科技有限公司 一种纸管
US9505179B2 (en) 2013-02-21 2016-11-29 The Procter & Gamble Company Method of manufacturing fibrous cores
US9561929B2 (en) 2013-02-21 2017-02-07 The Procter & Gamble Company Fibrous cores
US9756991B2 (en) 2013-02-21 2017-09-12 The Procter & Gamble Company Fibrous cores
JP2019081661A (ja) * 2016-01-25 2019-05-30 住友化学株式会社 フィルム捲回体及びフィルム捲回体の製造方法
US20250033924A1 (en) * 2023-07-28 2025-01-30 Brad McPhee Composite industrial winding core and methods

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT246741Y1 (it) 1999-05-19 2002-04-10 Cartiera Lucchese S P A Struttura di rotolo asciugamani a funzionalita' ottimizzata

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2868475A (en) * 1954-11-03 1959-01-13 Whyte Mfg Co Inc Spool
US4919358A (en) * 1988-05-20 1990-04-24 Innocenti Sr Emil Rewind shell for textiles
US5322234A (en) * 1992-02-28 1994-06-21 Sealed Air Corporation Telescoping core plug and support therefor
US5513820A (en) * 1993-11-15 1996-05-07 Meyer Plastics, Inc. Core plug apparatus
US5669578A (en) * 1995-09-22 1997-09-23 Ncr Corporation Crush-proof extrusion core
DE19718601C1 (de) * 1997-05-02 1999-01-21 Thomas Lammers Rolle bahnförmigen Materials mit Signalerzeugungseinrichtung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT246741Y1 (it) 1999-05-19 2002-04-10 Cartiera Lucchese S P A Struttura di rotolo asciugamani a funzionalita' ottimizzata

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9505179B2 (en) 2013-02-21 2016-11-29 The Procter & Gamble Company Method of manufacturing fibrous cores
US9561929B2 (en) 2013-02-21 2017-02-07 The Procter & Gamble Company Fibrous cores
US9756991B2 (en) 2013-02-21 2017-09-12 The Procter & Gamble Company Fibrous cores
CN104961002A (zh) * 2015-06-30 2015-10-07 广西金虹环保包装科技有限公司 一种纸管
JP2019081661A (ja) * 2016-01-25 2019-05-30 住友化学株式会社 フィルム捲回体及びフィルム捲回体の製造方法
US20250033924A1 (en) * 2023-07-28 2025-01-30 Brad McPhee Composite industrial winding core and methods

Also Published As

Publication number Publication date
ITMO20060023U1 (it) 2008-05-10
EP1920696A3 (de) 2014-07-02
EP1920696B1 (de) 2019-05-08

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