EP1566356A1 - Roll of sheet material with double core - Google Patents

Roll of sheet material with double core Download PDF

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Publication number
EP1566356A1
EP1566356A1 EP04425103A EP04425103A EP1566356A1 EP 1566356 A1 EP1566356 A1 EP 1566356A1 EP 04425103 A EP04425103 A EP 04425103A EP 04425103 A EP04425103 A EP 04425103A EP 1566356 A1 EP1566356 A1 EP 1566356A1
Authority
EP
European Patent Office
Prior art keywords
core
roll
diameter
spindle
sheet material
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
EP04425103A
Other languages
German (de)
French (fr)
Other versions
EP1566356B1 (en
Inventor
Emi Stefani
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.)
Imbalpaper SpA
Original Assignee
Imbalpaper 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 Imbalpaper SpA filed Critical Imbalpaper SpA
Priority to DE602004003333T priority Critical patent/DE602004003333T2/en
Priority to AT04425103T priority patent/ATE346010T1/en
Priority to EP04425103A priority patent/EP1566356B1/en
Publication of EP1566356A1 publication Critical patent/EP1566356A1/en
Application granted granted Critical
Publication of EP1566356B1 publication Critical patent/EP1566356B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65H75/04—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/18—Form of handled article or web
    • B65H2701/184—Wound packages
    • B65H2701/1844—Parts concerned
    • B65H2701/18442—Core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/50—Storage means for webs, tapes, or filamentary material
    • B65H2701/51—Cores or reels characterised by the material
    • B65H2701/511—Cores or reels characterised by the material essentially made of sheet material
    • B65H2701/5112—Paper or plastic sheet material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/50—Storage means for webs, tapes, or filamentary material
    • B65H2701/51—Cores or reels characterised by the material
    • B65H2701/512—Cores or reels characterised by the material moulded
    • B65H2701/5122—Plastics

Definitions

  • the present invention refers to a roll of sheet material - in particular of paper such as toilet paper, tissue paper, kitchen paper and the like - wound on a tubular core.
  • Such industrial rolls are usually wound on two different types of standardised cores, that is to say, a first type of core having a larger inside diameter and a second type of core having a smaller inside diameter.
  • unwinding supports - provided with two different types of spindles designed to receive the two different types of cores - have been created. That is to say, unwinding supports with large-diameter spindles to receive rolls with cores with a large inside diameter and unwinding supports with small-diameter spindles to receive rolls with cores with a small inside diameter are known to the art.
  • Said unwinding supports are installed in the premises where the industrial rolls are to be used.
  • the user - according to the type of unwinding support owned - must order industrial rolls suitable to be fitted on the spindle of the unwinding support.
  • the inside diameter of the core of the roll is smaller than the outside diameter of the spindle, the roll cannot be fitted on the spindle; on the contrary, if the inside diameter of the core of the roll is larger than the outside diameter of the spindle, the roll is fitted on the spindle with too much slack, which prevents correct use thereof.
  • Some unwinding supports are provided with an adapter to allow rolls with cores of different inside diameters to be installed.
  • these adapters are often eliminated after the first installation, according to the type of roll installed, and the users are often forced therefore to purchase a certain type of roll which adapts to their own unwinding support.
  • the object of the present invention is to overcome the drawbacks of the prior art by providing a roll of sheet material wound on a core suitable to adapt to the various types of spindles of the unwinding supports present on the market.
  • Another object of the present invention is to provide a roll of sheet material wound on a core that is versatile, practical, cheap and simple to make.
  • the roll according to the invention comprises sheet material wound on a tubular core and a second tubular core, which is disposed removably inside the first core on which the sheet material is wound.
  • the second core can be kept inside the first core to fit it on a small-diameter spindle of an unwinding support or else the second core can be extracted from the first core to fit the roll with the first core on a large-diameter spindle of an unwinding support.
  • Figure 1 illustrates an unwinding support 1 designed to support an industrial roll 2.
  • the unwinding support 1 comprises a support plate 10 intended to be fixed to a wall.
  • the support plate 10 rotatably supports a spindle 11 in the form of a rotatable roller with a horizontal axis.
  • the roll 2 comprises a sheet material 20, such as toilet paper, for example, which is wound on a tubular core 21, made of cardboard, for example.
  • the core 21 of the roll is fitted on the spindle 11 of the support plate 10 and the roll is closed by a covering half-shell 12 which has an opening 13 at the bottom from which the toilet paper 20 can be unwound.
  • Figures 2A e 2B illustrate respectively a first spindle 11 a having a large outside diameter D1 and a second spindle 11b having a small outside diameter D2.
  • D1 is equal to about 75 mm and D2 is equal to about 60 mm.
  • the tolerance between D1' e D1" is, for example, smaller than 1 mm to allow the second core 21b to be inserted easily in the first core 21a and at the same time to ensure a minimal slack between them.
  • the thickness of the first core 21a is smaller than the thickness of the second core 21b.
  • the thickness of the first core 21 a is about 2 mm
  • the thickness of the second core 21b is equal to D1" - D2'[(D1" - D2')/2; translator note], i.e. to about 7 mm.
  • the cores 21a and 21b are preferably made of cardboard, in a known manner, with a coiling machine. However they could also be made of another material such as plastic or the like, for example.
  • the roll 200 of sheet material is formed in a per se known manner, by means of a rewinding machine, on the large-diameter core 21a, inside which the second core 21b with a smaller diameter is inserted.
  • the roll thus formed, of the desired diameter, is then ready to be put on the market.
  • the user has an unwinding support 1 with a small-diameter spindle 11b, he/she can use the roll 200 as it is, that is with the double core, since the inside core 21b fits perfectly on said spindle.
  • the user has an unwinding support 1 with a large-diameter spindle 11a, he/she will remove the second core 21b from the first core 21a and will fit the first core 21a on the large-diameter spindle 11a.
  • the second core 21b which is removably inserted inside the first core 21a, thus acts as an adapter which is used to adapt the roll 200 to the small-diameter spindle 11b and which is removed to allow the roll to be applied to the large-diameter spindle 11a.

Landscapes

  • Sanitary Thin Papers (AREA)
  • Winding Of Webs (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Unwinding Webs (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

A roll (200) of sheet material (2) wound on a tubular core (21 a) is described. A second core (21b) is disposed removably inside the first core (21a) on which the roll is wound. In this manner the second core (21b) can be maintained inside the first core (21a) to adapt the roll to a small-diameter spindle of an unwinding support or the second core (21b) can be extracted from the first core (21a) to adapt the roll to a large-diameter spindle of an unwinding support.

Description

  • The present invention refers to a roll of sheet material - in particular of paper such as toilet paper, tissue paper, kitchen paper and the like - wound on a tubular core.
  • Currently known on the market are industrial rolls consisting of tissue paper wound on a tubular cardboard core. Said industrial rolls are inserted in appropriate unwinding or dispensing supports to be used, for example, in toilets, service areas or public premises. In this manner the user can unwind and detach a sheet of paper from the roll to use it as toilet paper, kitchen paper or for cleaning. Said rolls are generally large to ensure a long duration, for example they have diameters ranging from 15 cm to 50 cm.
  • Such industrial rolls are usually wound on two different types of standardised cores, that is to say, a first type of core having a larger inside diameter and a second type of core having a smaller inside diameter.
  • As a result, two different types of unwinding supports - provided with two different types of spindles designed to receive the two different types of cores - have been created. That is to say, unwinding supports with large-diameter spindles to receive rolls with cores with a large inside diameter and unwinding supports with small-diameter spindles to receive rolls with cores with a small inside diameter are known to the art.
  • Said unwinding supports are installed in the premises where the industrial rolls are to be used. As a result, the user - according to the type of unwinding support owned - must order industrial rolls suitable to be fitted on the spindle of the unwinding support. In fact, if the inside diameter of the core of the roll is smaller than the outside diameter of the spindle, the roll cannot be fitted on the spindle; on the contrary, if the inside diameter of the core of the roll is larger than the outside diameter of the spindle, the roll is fitted on the spindle with too much slack, which prevents correct use thereof.
  • Some unwinding supports are provided with an adapter to allow rolls with cores of different inside diameters to be installed. However, these adapters are often eliminated after the first installation, according to the type of roll installed, and the users are often forced therefore to purchase a certain type of roll which adapts to their own unwinding support.
  • The object of the present invention is to overcome the drawbacks of the prior art by providing a roll of sheet material wound on a core suitable to adapt to the various types of spindles of the unwinding supports present on the market.
  • Another object of the present invention is to provide a roll of sheet material wound on a core that is versatile, practical, cheap and simple to make.
  • These objects are achieved, according to the invention, with the characteristics listed in the appended independent claim 1.
  • Advantageous embodiments of the invention are apparent from the dependent claims.
  • The roll according to the invention comprises sheet material wound on a tubular core and a second tubular core, which is disposed removably inside the first core on which the sheet material is wound.
  • In this manner the second core can be kept inside the first core to fit it on a small-diameter spindle of an unwinding support or else the second core can be extracted from the first core to fit the roll with the first core on a large-diameter spindle of an unwinding support.
  • The advantages of the invention are obvious in that it allows to provide for a roll which adapts to various types of spindles of unwinding supports.
  • Further characteristics of the invention will be made clearer by the detailed description that follows, referring to a purely exemplary and therefore non limiting embodiment thereof, illustrated in the appended drawings, in which:
    • Figure 1 is a perspective, exploded view, illustrating an unwinding support and a relative roll of sheet material;
    • Figures 2A and 2B are partially broken off front views illustrating, respectively, a large-diameter spindle and a small-diameter spindle for roll unwinding supports;
    • Figures 3A and 3B are two axial sectional views, partially broken off, illustrating respectively two cores for forming the roll according to the invention;
    • Figure 4 is an axial sectional view, partially broken off, illustrating a roll according to the invention.
  • Figure 1 illustrates an unwinding support 1 designed to support an industrial roll 2. The unwinding support 1 comprises a support plate 10 intended to be fixed to a wall. The support plate 10 rotatably supports a spindle 11 in the form of a rotatable roller with a horizontal axis.
  • The roll 2 comprises a sheet material 20, such as toilet paper, for example, which is wound on a tubular core 21, made of cardboard, for example. The core 21 of the roll is fitted on the spindle 11 of the support plate 10 and the roll is closed by a covering half-shell 12 which has an opening 13 at the bottom from which the toilet paper 20 can be unwound.
  • Figures 2A e 2B illustrate respectively a first spindle 11 a having a large outside diameter D1 and a second spindle 11b having a small outside diameter D2. By way of example, D1 is equal to about 75 mm and D2 is equal to about 60 mm.
  • For the production of the roll according to the invention, denoted with reference numeral 200 and illustrated in Figure 4, the following are used:
    • a first tubular core 21a, shown in Figure 3A, having an inside diameter D1' slightly greater than the outside diameter D 1 of the spindle with a larger diameter 11a, and
    • a second tubular core 21b, shown in Figure 3B, having an inside diameter D2' slightly greater than the outside diameter D2 of the spindle with a smaller diameter 11b and an outside diameter D1" slightly smaller than the inside diameter D1' of the first core 21a.
  • The tolerance between D1' e D1" is, for example, smaller than 1 mm to allow the second core 21b to be inserted easily in the first core 21a and at the same time to ensure a minimal slack between them.
  • The thickness of the first core 21a is smaller than the thickness of the second core 21b. By way of example, the thickness of the first core 21 a is about 2 mm, whilst the thickness of the second core 21b is equal to D1" - D2'[(D1" - D2')/2; translator note], i.e. to about 7 mm.
  • The cores 21a and 21b are preferably made of cardboard, in a known manner, with a coiling machine. However they could also be made of another material such as plastic or the like, for example.
  • The roll 200 of sheet material is formed in a per se known manner, by means of a rewinding machine, on the large-diameter core 21a, inside which the second core 21b with a smaller diameter is inserted. The roll thus formed, of the desired diameter, is then ready to be put on the market.
  • If the user has an unwinding support 1 with a small-diameter spindle 11b, he/she can use the roll 200 as it is, that is with the double core, since the inside core 21b fits perfectly on said spindle.
  • If, on the other hand, the user has an unwinding support 1 with a large-diameter spindle 11a, he/she will remove the second core 21b from the first core 21a and will fit the first core 21a on the large-diameter spindle 11a.
  • The second core 21b, which is removably inserted inside the first core 21a, thus acts as an adapter which is used to adapt the roll 200 to the small-diameter spindle 11b and which is removed to allow the roll to be applied to the large-diameter spindle 11a.
  • Changes and modifications of detail within the reach of a person skilled in the art can be made to the present embodiment of the invention without thereby departing from the scope of the invention as set forth in the appended claims.

Claims (9)

  1. A roll (200) of sheet material (2) wound on a tubular core (21a), characterised in that it comprises a second core (21b) disposed removably inside the first core (21 a) on which the sheet material is wound.
  2. A roll (200) according to claim 1, characterised in that the inside diameter (D1') of said first core (21a) is slightly larger than the outside diameter (D1) of a first type of large-diameter spindle (11a) of an unwinding support (1) and in that the inside diameter (D2') of said second core (21b) is slightly larger than the outside diameter (D2) of a second type of small-diameter spindle (11b) of an unwinding support (1).
  3. A roll (200) according to claim 1 or 2, characterised in that the inside diameter (D1') of said first core (21a) is slightly larger than the outside diameter (D2') [(D1"; translator note] of said second core (21b).
  4. A roll (200) according to claim 3, characterised in that the tolerance between the inside diameter (D1') of the first core (21a) and the outside diameter (D1") of the second core (21b) is less than 1 mm.
  5. A roll (200) according to any one of the preceding claims, characterised in that the thickness of the first core (21a) is smaller than the thickness of the second core (21b).
  6. A roll (200) according to claim 5, characterised in that the thickness of the first core (21a) is about 2mm and in that the thickness of the second core (21b) is about 7 mm.
  7. A roll (200) according to any one of the preceding claims, characterised in that the inside diameter (D1') of the first core is about 75 mm and the inside diameter (D2') of the second core is about 60 mm.
  8. A roll (200) according to any one of the preceding claims, characterised in that said first and second core (21a, 21b) are made of cardboard by means of a coiling machine.
  9. A roll (200) according to any one of the preceding claims, characterised in that the sheet material (20) wound on the roll is paper of the tissue type.
EP04425103A 2004-02-18 2004-02-18 Roll of sheet material with double core Expired - Lifetime EP1566356B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE602004003333T DE602004003333T2 (en) 2004-02-18 2004-02-18 Roll made of double-core strip material
AT04425103T ATE346010T1 (en) 2004-02-18 2004-02-18 ROLL MADE OF DOUBLE CORE TAPE MATERIAL
EP04425103A EP1566356B1 (en) 2004-02-18 2004-02-18 Roll of sheet material with double core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04425103A EP1566356B1 (en) 2004-02-18 2004-02-18 Roll of sheet material with double core

Publications (2)

Publication Number Publication Date
EP1566356A1 true EP1566356A1 (en) 2005-08-24
EP1566356B1 EP1566356B1 (en) 2006-11-22

Family

ID=34707427

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04425103A Expired - Lifetime EP1566356B1 (en) 2004-02-18 2004-02-18 Roll of sheet material with double core

Country Status (3)

Country Link
EP (1) EP1566356B1 (en)
AT (1) ATE346010T1 (en)
DE (1) DE602004003333T2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006094175A3 (en) * 2005-03-03 2007-11-29 P & M Services Inc Paper roll core adapter
CN102774711A (en) * 2012-08-01 2012-11-14 张家港市恒美纺织有限公司 Combined type rubber barrel
CN106275859A (en) * 2016-09-20 2017-01-04 天津瀛德科技有限公司 Cold-storage device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05229742A (en) * 1992-02-18 1993-09-07 Ricoh Co Ltd Recording sheet
GB2321894A (en) * 1997-02-06 1998-08-12 Amakane Ltd Insert for wound paper products with a compressed core
WO2001021509A1 (en) * 1999-09-22 2001-03-29 Leander Pukade Roll
EP1211214A2 (en) * 2000-12-01 2002-06-05 Sonoco Development, Inc. Composite core

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05229742A (en) * 1992-02-18 1993-09-07 Ricoh Co Ltd Recording sheet
GB2321894A (en) * 1997-02-06 1998-08-12 Amakane Ltd Insert for wound paper products with a compressed core
WO2001021509A1 (en) * 1999-09-22 2001-03-29 Leander Pukade Roll
EP1211214A2 (en) * 2000-12-01 2002-06-05 Sonoco Development, Inc. Composite core

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 017, no. 682 (M - 1528) 14 December 1993 (1993-12-14) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006094175A3 (en) * 2005-03-03 2007-11-29 P & M Services Inc Paper roll core adapter
CN102774711A (en) * 2012-08-01 2012-11-14 张家港市恒美纺织有限公司 Combined type rubber barrel
CN106275859A (en) * 2016-09-20 2017-01-04 天津瀛德科技有限公司 Cold-storage device

Also Published As

Publication number Publication date
EP1566356B1 (en) 2006-11-22
DE602004003333T2 (en) 2007-06-21
DE602004003333D1 (en) 2007-01-04
ATE346010T1 (en) 2006-12-15

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