EP0748757B1 - Bobine et son procédé de fabrication - Google Patents

Bobine et son procédé de fabrication Download PDF

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Publication number
EP0748757B1
EP0748757B1 EP19960301640 EP96301640A EP0748757B1 EP 0748757 B1 EP0748757 B1 EP 0748757B1 EP 19960301640 EP19960301640 EP 19960301640 EP 96301640 A EP96301640 A EP 96301640A EP 0748757 B1 EP0748757 B1 EP 0748757B1
Authority
EP
European Patent Office
Prior art keywords
flanges
core
teeth
reel
platens
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
EP19960301640
Other languages
German (de)
English (en)
Other versions
EP0748757A1 (fr
Inventor
Jorma Siipola
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.)
PENTRE GROUP LIMITED
Original Assignee
Pentre Group Ltd
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 Pentre Group Ltd filed Critical Pentre Group Ltd
Publication of EP0748757A1 publication Critical patent/EP0748757A1/fr
Application granted granted Critical
Publication of EP0748757B1 publication Critical patent/EP0748757B1/fr
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
    • B65H75/14—Kinds or types of circular or polygonal cross-section with two end flanges
    • 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
    • B65H75/50—Methods of making reels, bobbins, cop tubes, or the like by working an unspecified material, or several materials
    • 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
    • B65H2701/515—Cores or reels characterised by the material assembled from parts made of different materials
    • B65H2701/5152—End flanges and barrel of different material
    • B65H2701/51526—Metal barrel

Definitions

  • the present invention relates to a reel and in particular to reels with wooden flanges, especially plywood but not exclusively so, and to a method of manufacturing a reel.
  • Filamentary material be it cable or otherwise is conveniently stored on a so-called reel or cable drum.
  • WO-A-94/22 755 describes a reel comprising a pair of opposite flanges constructed from wood and a core formed of metal disposed between the opposed flanges, whereby curved tabs formed in the ends of the core extend axially through the flanges, to which tabs corresponding curved slots are formed.
  • Plywood reels are widely used and comprise two plywood flanges (usually circular), and a core usually termed a barrel of relatively thin ply sheet which is rolled up, the ends secured together (usually by nailing into a batten on the inside circumference), thereby forming a barrel which is approximately circular.
  • the capacity of the reels will determine the relative sizes of the flanges and especially the barrel diameter.
  • the flanges have to be connected together and the barrel has to be supported. It is conventional practice to do this using a plurality of metal tubes which extend between the flanges (actually passing through holes in the flanges) and which are positioned to back up the inner surface of the barrel at prescribed locations. The number of tubes employed will vary, primarily according to the diameter of the barrel.
  • reel utilises a metal barrel usually formed as a hollow cylinder and having axially extending tabs which are arcuate and interspaced with recessing thereby providing a castleated end configuration to the barrel.
  • the flanges are machined with corresponding arcuate slots to receive the tabs which, when the flanges are placed in position, are turned over to hold the flanges in position. Again the flanges have to be machined to suit the particular size of barrel with which they are to be used.
  • flange may be used with several alternative diameters of core, hence the need for specific machining of the flange to suit the required size of barrel for the particular application.
  • the resulting barrel is time-consuming to manufacture and the present invention aims to provide a solution.
  • a method of constructing a reel comprising a metal core and a pair of opposed flanges made of wood or other cellulosic material, the method comprising centralising the metal core with respect to the flanges, said metal core having to its opposite ends a plurality of axially extending teeth, applying pressure to the opposed flanges to move the flanges together and to cause the teeth to penetrate into the material of the flanges and deforming the teeth to anchor the barrel to the opposed flanges.
  • a flange can be used with any specified size of core.
  • the plurality of teeth gives an improved torsional connection between the flanges thereby and reducing torsional deflection of the reel.
  • a pair of opposed platens Conveniently pressure is applied to the flanges by a pair of opposed platens. It is preferred that the teeth are longer than the thickness of the flange so that they contact the respective platens, which contact acts to deform the teeth. Deformation will include lateral movement or upsetting of the material.
  • At least one of the opposed platens is movable, at least for the purpose of applying pressure to the flanges. Preferably both are movable, one to cater for different axial sizes of reel and the other to perform the assembly operation.
  • apparatus to construct a reel from a metal core and a pair of flanges made from wood or other cellulose material
  • the apparatus comprising a pair of opposed platens, at least one of which is axially movable towards and away from the other, and which platens are adapted to contact a respective one of the flanges, means for applying pressure to the flanges via the platens, and means for centralising the core with respect of the pair of flanges, the opposite ends of the core as made having a plurality of circumferentially spaced axially extending teeth, and wherein relative movement of the platens towards one another causes the teeth to penetrate the material of the flanges and to deform same to locate the flanges axially with respect to the core.
  • the platens comprise discs, generally planar, and preferably having a coaxial spigot to receive as a light interference fit a respective flanges which are in the form of an annulus.
  • the axis of the platens is vertical.
  • a flange is placed on each of the platens so that one faces upwardly and the other downwardly and facing it.
  • the spigot assures that the two flanges are in axial alignment.
  • a core which has previously been constructed to the required size is placed on the lower flange.
  • Centralising means comprising a pair of arcuate (semi-circular) support members are moved laterally to contact the core and position it coaxially with respect to the flanges.
  • the arcuate members are preferably configured to conform to the cross-sectional shape of the core to support same against radial outward movement under pressure as described further hereinafter.
  • the upper platen is lowered, causing the uppermost flange to impinge on the upwardly projecting lengths of the core.
  • the platen moves by a controlled distance to bring the flanges into contact with end abutment edges of the core between the root of the teeth. Meanwhile, the teeth have penetrated the flange, contacted the respective platens and been deformed.
  • a reel comprising a pair of opposed flanges constructed from wood and a core formed of metal and disposed between the opposed flanges and wherein the core has its opposite ends formed with a plurality of circumferentially spaced axially extending teeth which are constructed to penetrate the wood of the respective flanges and which are deformed to locate the flanges axially with respect to the core.
  • the core is preferably a hollow cylindrical member and in one embodiment is formed by rolling up from sheet material and its longitudinal edges secured together, conveniently by seam welding. A perfectly circular core can be formed by this method which is advantageous.
  • the core may be formed by a bending and pressing operation to introduce longitudinal ribs to the core.
  • intermediate reinforcing means may be incorporated, be they longitudinal or radial.
  • the teeth are conveniently formed on the ends of the sheet prior to forming into the cylindrical shape.
  • a blank of the desired shape is conveniently formed by a pressing operation, which pressing operation forms said teeth.
  • the flanges are preferably made from plywood, but other materials are possible providing they can be penetrated by the teeth and have sufficient strength to resist pulling out of the teeth after deformation.
  • a reel according to the present invention comprises two plywood flanges 1 which are annular and have a central hole 3 and at least one of flanges may have an outwardly directed slot 5.
  • a barrel of the reel is formed from sheet metal which has its ends cut to form a plurality of teeth 7 which are generally triangular and spaced apart to define between adjacent roots of the teeth respective aligned end abutment surfaces 9.
  • An access hole 10 is conveniently formed in the sheet.
  • the barrel is formed by rolling up the sheet metal and seam welding together the opposite end edges 11, 13. The length of the teeth from the end abutment 9 is greater than the thickness of the flanges 1.
  • Assembly of the components is carried out using a pressing machine of any suitable design and conveniently comprising a lower platen 21, conveniently slidably guided on support pillars 23 and adjustable for height using any convenient means such as hydraulic rams or otherwise.
  • the platen has a central spigot 20 dimensioned to receive as a light interference fit the central hole 3 of flange 1.
  • the platen carries guide rails 27 on which are slidably movable centralising/support means 28 and conveniently comprising two semi-circular cradles 28a, 28b each reciprocally movable in a direction normal to the axis 26 of the pressing machine.
  • the cradles are dimensioned to have at least a part thereof closely conforming to the circumference of the barrel.
  • An upper platen comprising a disc 30 having a coaxial spigot 31 is reciprocally movable along axis 26 using any convenient means of applying pressure. Conveniently a hydraulic ram is employed.
  • the platen is carried from an upper support (not illustrated), which itself is slidably received or supported by the pillars 23.
  • the lower platen 21 is set to the prescribed height for the given size of barrel to be inserted and the upper platen withdrawn.
  • the centralising/support means are moved laterally outwardly and a respective flange placed on each of the platens.
  • the platens cooperate as a light interference fit with the respective spigots 20, 31.
  • a prefabricated hollow cylindrical barrel is loosely placed on the lower flange, approximately centrally, and the two halves of the centralising/support means moved towards one another whereby the contact surfaces act to centralise the barrel with respect to the flange.
  • End regions of the centralising/support cradle, ie. the two halves thereof have respective spigots 28c and recesses 28d which are brought into cooperating engagement on bringing together of the two halves to provide a peripheral support for the barrel, at axially spaced positions in the illustrated embodiment.
  • the upper platen is lowered bringing the upper flange into contact with the teeth 7 of the upper end of the barrel and the teeth from both ends pierced into the respective flanges. Since the flanges are longer than the thickness of the flanges there will be contact with the platens, and continued movement of the platens towards one another will cause the teeth to be deformed laterally. The flanges are moved until they just contact the end abutments 9. The deformation ensures that the flanges are retained axially on the opposite ends of the barrel.
  • the upper platen is then raised and the centralising/support cradle withdrawn whereupon the completed reel can be removed.
  • the central bore 3 is standardised for most reels, thus the only alteration required to accommodate a different diameter of barrel is to change the cradle, and it is envisaged that adapters will be provided to reduce down from the largest possible size barrel to the minimum anticipated size.

Landscapes

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

Claims (20)

  1. Bobine comportant une paire de joues opposées (1) fabriquées en bois et un noyau (2) formé de métal disposé entre les joues opposées, caractérisée en ce que, tel qu'il est réalisé, le noyau possède des extrémités opposées munies d'une pluralité de dents (7), s'étendant dans le sens de l'axe, espacées selon la circonférence, qui, en assemblant les joues, pénètrent dans le bois des joues respectives et subissent une déformation servant à positionner les joues dans le sens de l'axe par rapport au noyau.
  2. Bobine selon la revendication 1, caractérisée en ce que le noyau est un élément cylindrique enroulé à partir d'un matériau en feuille, et qu'il possède des bords longitudinaux (11, 13) fixés ensemble.
  3. Bobine selon la revendication 1, caractérisée en ce que le noyau possède une pluralité de nervures longitudinales espacées le long de la circonférence.
  4. Bobine selon la revendication 1, 2 ou 3, caractérisée en ce que les dents, telles qu'elles sont réalisées, sont sensiblement triangulaires.
  5. Bobine selon une quelconque des revendications 1 à 4, caractérisée en ce que les dents sont déformées radialement vers l'intérieur et/ou l'extérieur, en déplaçant le matériau de la joue.
  6. Bobine selon une quelconque des revendications 1 à 5, caractérisée en ce qu'elle comporte, en outre, des moyens de renfort de noyau longitudinaux et/ou radiaux.
  7. Procédé de fabrication d'une bobine comprenant un noyau métallique (2) et une paire de joues opposées (1), réalisées en bois ou autre matériau cellulosique, le procédé étant caractérisé en ce qu'il comporte les étapes consistant à : centrer le noyau métallique par rapport aux joues, ledit noyau métallique ayant ses extrémités opposées munies d'une pluralité de dents s'étendant dans le sens de l'axe ; appliquer une pression aux joues opposées afin de déplacer ensemble les joues et de faire en sorte que les dents pénètrent dans le matériau des joues ; et déformer les dents pour ancrer le noyau dans les joues opposées.
  8. Procédé selon la revendication 7, caractérisé en ce que la pression est appliquée aux joues par une paire de plateaux opposés (21, 30).
  9. Procédé selon la revendication 8, caractérisé en ce que les dents sont plus longues que l'épaisseur d'une joue de sorte qu'elles viennent au contact des plateaux respectifs, ce contact agissant pour déformer les dents.
  10. Procédé selon la revendication 9, caractérisé en ce que la déformation des dents inclut un mouvement latéral ou de renversement du matériau.
  11. Procédé selon une quelconque des revendications 7 à 10, caractérisé en ce qu'il comporte, en outre, l'étape consistant à former le noyau par enroulement d'un matériau en feuille et fixation ensemble de ses bords longitudinaux.
  12. Procédé selon une quelconque des revendications 7 à 10, caractérisé en ce qu'il comporte, en outre, l'étape consistant à former le noyau par pliage du matériau en feuille afin d'introduire des nervures longitudinales dans le noyau.
  13. Procédé selon une quelconque des revendications 11 ou 12, caractérisé en ce qu'il comporte l'étape consistant à former les dents sur les extrémités du matériau en feuille avant la formation en une configuration cylindrique.
  14. Procédé selon une quelconque des revendications 1 à 13, caractérisé en ce qu'il comporte, en outre, l'étape consistant à supporter le noyau pour empêcher un déplacement radial vers l'extérieur de celui-ci durant d'application de la pression axiale aux joues.
  15. Appareil de fabrication d'une bobine à partir d'un noyau métallique (2) et d'une paire de joues (1), réalisées en bois ou autre matériau cellulosique, caractérisé en ce qu'il comporte une paire de plateaux opposés (21, 30) dont au moins un est mobile, dans le sens de l'axe, en se rapprochant et en s'éloignant de l'autre, lesdits plateaux étant adaptés pour venir au contact d'une joue respective, des moyens pour appliquer une pression aux joues par l'intermédiaire des plateaux, et des moyens (28a, 28b) pour centrer le noyau par rapport à la paire de joues, les extrémités opposées du noyau, tel qu'il est réalisé, ayant une pluralité de dents s'étendant dans le sens de l'axe, espacées le long de la circonférence, et en ce qu'un déplacement relatif des plateaux l'un vers l'autre provoque la pénétration des dents dans le matériau des joues et la déformation de celles-ci afin de positionner les joues dans le sens de l'axe par rapport au noyau.
  16. Appareil selon la revendication 15, caractérisé en ce que les deux plateaux sont mobiles, un servant à prendre en charge les différentes tailles axiales de bobine et l'autre servant à effectuer l'opération d'assemblage.
  17. Appareil selon la revendication 15 ou 16, caractérisé en ce que les plateaux comportent des disques, globalement plans, ayant une saillie coaxiale (31) pour recevoir en ajustement léger une joue respective, chacune d'elles ayant la forme d'un anneau.
  18. Appareil selon une quelconque des revendications 15 à 17, caractérisé en ce que l'axe de déplacement des plateaux est vertical.
  19. Appareil selon une quelconque des revendications 15 à 18, caractérisé en ce que les moyens de centrage comportent une paire d'éléments de support en forme d'arc (28a, 28b).
  20. Appareil selon la revendication 19, caractérisé en ce que les éléments en forme d'arc sont de préférence configurés pour se conformer à la forme de section du noyau pour supporter celui-ci en empêchant tout mouvement radial vers l'extérieur.
EP19960301640 1995-06-17 1996-03-11 Bobine et son procédé de fabrication Expired - Lifetime EP0748757B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9512378.2A GB9512378D0 (en) 1995-06-17 1995-06-17 Reel and method of manufacturing same
GB9512378 1995-06-17

Publications (2)

Publication Number Publication Date
EP0748757A1 EP0748757A1 (fr) 1996-12-18
EP0748757B1 true EP0748757B1 (fr) 1999-06-30

Family

ID=10776259

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960301640 Expired - Lifetime EP0748757B1 (fr) 1995-06-17 1996-03-11 Bobine et son procédé de fabrication

Country Status (3)

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EP (1) EP0748757B1 (fr)
DE (2) DE748757T1 (fr)
GB (1) GB9512378D0 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19703629A1 (de) * 1997-01-31 1998-08-06 Daimler Benz Aerospace Ag Verfahren zur bordautonomen Bestimmung der Position eines Satelliten
ITMI20011261A1 (it) * 2001-06-15 2002-12-15 Iannucci S N C Di Marco E Ni C Procedimento per l'assemblaggio di bobine avvolgicavi macchina per lasua realizzazione e bobine cosi' ottenute

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3552677A (en) * 1968-12-16 1971-01-05 Plastics Inc Knockdown spool
CH548341A (de) * 1972-08-16 1974-04-30 Buettner Franz Verfahren zur herstellung einer schreibbandspule und danach hergestellte schreibbandspule.
FR2605618B1 (fr) * 1986-10-22 1989-05-05 Eurocable Ste Nle Touret en bois pour le stockage de cables
FI933049A0 (fi) * 1993-04-02 1993-07-02 Mauri Hirvanen Kabeltrumma

Also Published As

Publication number Publication date
DE748757T1 (de) 1997-09-04
EP0748757A1 (fr) 1996-12-18
DE69603051D1 (de) 1999-08-05
GB9512378D0 (en) 1995-08-16

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