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EP1385769B1 - Ensembles noyaux tubulaires pour rouleaux de papier ou autres materiaux en feuilles - Google Patents

Ensembles noyaux tubulaires pour rouleaux de papier ou autres materiaux en feuilles Download PDF

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Publication number
EP1385769B1
EP1385769B1 EP00954191A EP00954191A EP1385769B1 EP 1385769 B1 EP1385769 B1 EP 1385769B1 EP 00954191 A EP00954191 A EP 00954191A EP 00954191 A EP00954191 A EP 00954191A EP 1385769 B1 EP1385769 B1 EP 1385769B1
Authority
EP
European Patent Office
Prior art keywords
approximately
end member
core member
inches
range
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00954191A
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German (de)
English (en)
Other versions
EP1385769A1 (fr
Inventor
Daniel D. Kewin
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1385769A1 publication Critical patent/EP1385769A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18—Constructional details
    • B65H75/185—End caps, plugs or adapters
    • B65H75/187—Reinforcing end caps

Definitions

  • This invention relates to tubular core assemblies for rolls of paper or other sheet material.
  • Tubular core assemblies which have a hollow cylindrical core member of paper board material and an annular end member of plastic material within each opposite end portion of the core member are known, see for example U.S. Patent No. 5,236,141 issued August 17, 1993, U.S. Patent No. 5,595,356 issued January 21, 1997, U.S. Patent No. 5,615,845 issued April 1, 1997, U.S. Patent No. 5,725,178 issued March 10, 1998 and U.S. Patent No. 5,829,713 issued November 3, 1998.
  • U.S. Patent No. 5,615,845 and U.S. Patent No. 5,829,713 mentioned above are particularly concerned with tubular core assemblies intended for mounting on chucks having radially movable portions which are movable radially outwardly to engage the inner surface of a tubular core assembly and on chucks which are movable under axial pressure into engagement with the ends of the tubular core assembly.
  • Some of the tubular core assemblies described in these two prior patents are also suitable for use with chucks having a single key which engages in a notch in the tubular core assembly.
  • each annular end member is provided with at least one radially-projecting lug adjacent an end thereof which is engaged in a lug-receiving notch in the core member to facilitate transmission of torque and axial chuck pressure from the end member to the core member.
  • each annular end member should preferably be provided with a pair of notches at diametrically opposite positions for receiving a key of a roll supporting chuck.
  • US-A-5 595 356 discloses an annular end member of plastic material for insertion into an end portion of a hollow cylindrical core member of a tubular core assembly for a roll of paper or other sheet material, said end member having an outer annular surface securable to an inner annular surface of a core member, an inner annular surface shaped to receive a roll supporting chuck and at least two radially-projecting lugs adjacent an end thereof positioned so as to be rotatably balanced and engageable in lug-receiving notches in a core member.
  • US-A-5 393 010 discloses an annular member that has an inner annular surface that is tapered to provide two taper angles.
  • the tapered surface is preferably provided with grooves or notches to receive a spline or the like on a reel stub shaft.
  • each plastic annular end member has at least two radially projecting lugs adjacent an end thereof positioned so as to be rotatably balanced, i.e. equi-angularly spaced around the end member, and also has an inner annular surface at said end which is continuous and of constant radius around the circumference thereof, thereby maximizing the cylindrical hoop strength of the annular end member.
  • the annular end member may have a pair of radially-projecting lugs which are diametrically opposite, or may have three radially-projecting lugs angularly spaced at 120° intervals, or may have four radially-projecting lugs angularly spaced at 90° intervals.
  • Figs. 1 and 2 show one end portion of a tubular core assembly for a paper roll which comprises a hollow cylindrical core member 12 of paperboard material, and an annular end member 14 of synthetic plastic material with a sleeve portion 16 within each opposite end portion of the core member 12.
  • the core member 12 has multiple spirally-wound wraps (i.e. laminated plies) of paperboard material, and the synthetic plastic material may be of suitable polymeric material such as injection moulding grade 25% glass filled nylon type 6.
  • each end member 12 has an outer annular surface which is a compression fit, i.e. a friction fit, in a respective end portion of the core member 12.
  • Each end member 14 has a pair of diametrically opposite solid lugs 18, 20 of rectangular section projecting radially outwardly from the end of the sleeve portion 16 at the end of the core member 12.
  • the lugs 18, 20 are located in diametrically opposite notches 22, 24 of rectangular section in the end of the core member 12, and rotationally equalize continuous torque and axial pressure from the end members 14 to the core member 12.
  • the lugs 18, 20 are the same size as the notches 22, 24 so as to be a close fit therein.
  • Each end member 14 also has an end surface 26 adjacent the respective end 28 of the core member 12, and the end surface 26 has a radially inwardly and rearwardly bevelled radially inner portion 30 for engagement by a chuck (not shown) inserted into the end member 16.
  • Each end member 14 has an internal diameter in the range of about 3 to about 6 inches (approximately 76.2 to 152.4 mm), an outer diameter in the range of from about 3.25 to about 7 inches (approximately 82.5 to 177.8 mm) and a length in the range of from about 1.5 to about 6 inches (approximately 38.1 to 152.4 mm).
  • the core member 12 has an outer diameter in the range of from about 4 to about 9 inches (approximately 101.6 to 228.6 mm) and a length in the range of from about 2 to about 10 feet (approximately 609.6 to 3048 mm).
  • the ratio of end member roll thickness to core member thickness is in the range of from about 0.75:1 to about 1.5:1.
  • the lugs 18, 20 each have a height above the outer annular surface of the end member 14 in the range of from about 0.2 to about 1 inch (approximately 5.08 to 25.4 mm), a circumferential width in the range of from about 0.25 to about 3 inches (approximately 6.35 to 76.2 mm), and an axial length in the range of from about 0.5 to about 4 inches (approximately 12.7 to 101.6 mm).
  • the notches 22,24 are of course similarly sized.
  • the sleeve member 16 of each end member 14 has an internal diameter of 3 inches (approximately 76.2 mm), an external diameter of 3.75 inches (approximately 95.25 mm) and a length of 3 inches (approximately 76.2 mm).
  • the core member 12 has an outer diameter of 4.4 inches (approximately 111.7 mm) and a length of 4.5 ft (approximately 1371 mm), and the ratio of end member roll thickness to core member thickness is 1.15:1.
  • Each lug 18, 20 has a height above the outer annular surface of the end member 14 of 0.325 inches (approximately 8.2 mm), a circumferential width of 0.75 inches (approximately 19.05 mm), and an axial length of 0.75 inches (approximately 19.05 mm).
  • the notches 22, 24 are of course of substantially the same size.
  • Each end member 14 has no notches and thus has an inner surface 32 extending throughout the length of the annular member 14 which is continuous and of constant radius around the circumference thereof, thereby reducing the likelihood of distortion of the end member 14 and consequent distortion of the core member 12 when the tubular core assembly is used with a heavy paper roll. It is also advantageous that each lug 18, 20 is solid.
  • Figs. 3 and 4 show a further embodiment which is generally similar to the embodiment shown in Figs. 1 and 2, except that each end member 14 has three solid lugs 18,19,20 spaced at 120° intervals around the end member and the core member 12 has three similarly located notches 22, 23, 24.
  • Figs. 5 and 6 show a further embodiment which is generally similar to the previous embodiments, except that the end member 14 has four lugs 18, 19, 20, 21 spaced at 90° intervals around the end member 14 and the core member 12 has four similarly positioned notches 22, 23, 24, 25.

Landscapes

  • Winding Of Webs (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Unwinding Webs (AREA)

Claims (6)

  1. Un élément d'extrémité annulaire (14) en matière plastique pour insertion dans la partie d'extrémité de la cavité cylindrique d'un noyau tubulaire utilisé pour des bobines de papier ou autres matériaux en feuille mince, ledit élément d'extrémité comportant une surface externe annulaire pouvant s'assujetir sur une surface interne annulaire d'un noyau, une surface interne annulaire dont la forme lui permet de recevoir un mandrin porte-bobine et au moins deux clavettes radiales en saillie (18, 19, 20, 21) adjacentes à une extrémité et positionnées de manière qu'elles soient équilibrées en rotation et qu'elles puissent s'engager dans des encoches destinées à les recevoir d'un noyau, caractérisé par une surface interne annulaire (32) à ladite extrémité qui est continue et de rayon constant sur la circonférence.
  2. Un élément d'extrémité annulaire selon la revendication 1, comportant deux clavettes radiales en saillie, diamétralement opposées.
  3. Un élément d'extrémité annulaire selon la revendication 1, comportant trois clavettes radiales en saillie réparties à 120°.
  4. Un élément d'extrémité annulaire selon la revendication 1, comportant quatre clavettes radiales en saillie réparties à 90°.
  5. Un élément d'extrémité annulaire selon la revendication 1, avec diamètre interne d'environ 3 pouces à environ 6 pouces (approximativement 76,2 à 152,4 mm), diamètre externe d'environ 3,25 à environ 7 pouces (approximativement 82,5 à 177,8 mm) et une longueur d'environ 1,5 à environ 6 pouces (approximativement 38,1 à 152,4 mm), chaque clavette étant massive et ayant une hauteur au-dessus de la surface annulaire externe d'environ 0,2 à environ 1 pouce (approximativement 5,08 à 25,4 mm), une largeur circonférencielle d'environ 0,25 à environ 3 pouces (approximativement 6,35 à 76,2 mm), et une longueur axiale d'environ 0,5 pouce à environ 4 pouces (approximativement 12,7 à 101,6 mm).
  6. Un noyau tubulaire utilisé pour des bobines de papier ou autres matériaux en feuille mince, comportant :
    un noyau à cavité cylindrique (12) constitué d'un matériau de carton et d'un élément d'extrémité annulaire correspondant (14) conformément à chacune des revendications précédentes dans chacune des extrémités opposées du noyau, la surface annulaire externe de chaque élément d'extrémité étant assujettie sur la surface interne annulaire du noyau et lesdites clavettes s'engageant dans des encoches correspondantes destinées à les recevoir (22, 23, 24, 25) et définies par le noyau pour l'égalisation rotationnelle du couple continu et de la pression axiale du mandrin entre chaque élément d'extrémité et le noyau.
EP00954191A 2000-08-10 2000-08-10 Ensembles noyaux tubulaires pour rouleaux de papier ou autres materiaux en feuilles Expired - Lifetime EP1385769B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CA2000/000932 WO2002012106A1 (fr) 2000-08-10 2000-08-10 Ensembles noyaux tubulaires pour rouleaux de papier ou autres materiaux en feuilles

Publications (2)

Publication Number Publication Date
EP1385769A1 EP1385769A1 (fr) 2004-02-04
EP1385769B1 true EP1385769B1 (fr) 2005-08-03

Family

ID=4143076

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00954191A Expired - Lifetime EP1385769B1 (fr) 2000-08-10 2000-08-10 Ensembles noyaux tubulaires pour rouleaux de papier ou autres materiaux en feuilles

Country Status (4)

Country Link
EP (1) EP1385769B1 (fr)
AU (1) AU2000266744A1 (fr)
DE (1) DE60021776T2 (fr)
WO (1) WO2002012106A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5393010A (en) * 1993-04-20 1995-02-28 Sonoco Products Company Tubular core assembly for winding paper and other sheet material having mechancially interlocked end members
US5595356A (en) * 1995-10-12 1997-01-21 Kewin; Daniel D. Tubular core assemblies for rolls of paper or other sheet material
US5657944A (en) * 1996-09-05 1997-08-19 Kewin; Daniel D. Unwinding rolls of paper

Also Published As

Publication number Publication date
WO2002012106A1 (fr) 2002-02-14
EP1385769A1 (fr) 2004-02-04
AU2000266744A1 (en) 2002-02-18
DE60021776D1 (de) 2005-09-08
DE60021776T2 (de) 2006-08-31

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