WO2006089679A1 - Bague de frottement pour arbres de frottement, en particulier pour enrouler des bobines multiples - Google Patents

Bague de frottement pour arbres de frottement, en particulier pour enrouler des bobines multiples Download PDF

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Publication number
WO2006089679A1
WO2006089679A1 PCT/EP2006/001406 EP2006001406W WO2006089679A1 WO 2006089679 A1 WO2006089679 A1 WO 2006089679A1 EP 2006001406 W EP2006001406 W EP 2006001406W WO 2006089679 A1 WO2006089679 A1 WO 2006089679A1
Authority
WO
WIPO (PCT)
Prior art keywords
friction
ring
slots
friction ring
locking elements
Prior art date
Application number
PCT/EP2006/001406
Other languages
English (en)
Inventor
Stefano Gattrugeri
Franco Pettinati
Original Assignee
I.E.S. International Expanding Shafts S.R.L.
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 I.E.S. International Expanding Shafts S.R.L. filed Critical I.E.S. International Expanding Shafts S.R.L.
Publication of WO2006089679A1 publication Critical patent/WO2006089679A1/fr

Links

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
    • B65H75/24—Constructional details adjustable in configuration, e.g. expansible
    • B65H75/242—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages
    • B65H75/246—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages expansion caused by relative rotation around the supporting spindle or core axis
    • B65H75/247—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages expansion caused by relative rotation around the supporting spindle or core axis using rollers or rods moving relative to a wedge or cam surface

Definitions

  • the present invention relates to a friction ring for friction shafts, particularly for winding multiple reels.
  • friction rings are already commercially available and are placed on friction shafts used to wind multiple reels with the possibility to avoid generating differences in traction during the winding of the different reels.
  • friction rings are provided by means of an internal ring, which can be positioned on the friction shaft, which is typically provided with strips which lie parallel to the axis and produce friction coupling by introducing compressed air into chambers provided below the internal rings.
  • an external ring is provided from which locking elements protrude; such locking elements are normally constituted by balls, which are actuated so as to move radially directly by the rotation of the shaft.
  • the balls are positioned in guides provided on the external surface of the internal ring and have such a shape that when the shaft turns in a preset direction the balls protrude radially so that they lock on the internal surface of the core.
  • the friction ring is preset to produce the protrusion of the locking elements only when the shaft turns in a preset direction of rotation, and therefore if the direction of rotation is reversed, in order to perform locking it is necessary to reverse the arrangement of the ring with respect to the shaft so that the protrusion of the locking elements occurs with the selected rotation of the friction shaft.
  • this method is particularly disadvantageous, since it requires the use of considerable labor and further entails relatively long machine downtimes.
  • the aim of the invention is to solve the problems described above by providing a friction ring for friction shafts particularly for winding multiple reels which allows to activate the locking elements with any direction of rotation of the friction shaft, thus simplifying all the operations related to changing the rotation of the shaft.
  • an object of the invention is to provide a friction ring in which it is possible to achieve particularly quick assembly, together with the possibility to preset the friction ring manually without having to resort to its disassembly if the direction of rotation of the shaft is to be modified.
  • Another object of the present invention is to provide a friction ring which, thanks to its particular constructive characteristics, is capable of giving the greatest assurances of reliability and safety in use.
  • Another object of the present invention is to provide a friction ring for friction shafts particularly for winding multiple reels which can be obtained easily starting from commonly commercially available elements and materials and is further competitive from a merely economical standpoint.
  • a friction ring for friction shafts particularly for winding multiple reels according to the invention, which comprises an internal ring, which can be positioned on a friction shaft and is associated with an external ring, from which elements for the removable locking of the core of the winding reel which can be coupled to the friction ring protrude, said locking elements being activated by the rotation of the core of the reel on the external ring, combined with a slight pressure, characterized in that it comprises means for activating said locking elements which act in both directions of rotation of said friction shaft.
  • Figure 1 is an axial sectional view of a friction shaft on which friction rings according to the invention are fitted;
  • Figure 2 is an exploded schematic perspective view of a friction ring according to the invention.
  • Figure 3 is a sectional view of a friction shaft, with the locking element activation means preset for activation in a given direction of rotation of the shaft;
  • Figure 4 is a sectional view of a friction ring with the activation of the locking elements for the rotation of the shaft in a given direction;
  • Figure 5 is a sectional view of the friction ring, preset for activation of the locking elements for rotation of the shaft in the opposite direction with respect to the preceding figures;
  • Figure 6 is a sectional view of the locking rings activated by the rotation of the shaft in a direction of rotation which is the opposite of the one shown in Figures 3 and 4;
  • Figure 7 is an axial partial, sectional view of friction rings in the initial position
  • Figure 8 is a partial, sectional view of friction rings in locking conditions for the rotation of the friction shaft. Ways of carrying out the Invention
  • the friction ring for friction shafts particularly for winding multiple reels comprises an internal ring 2, which can be arranged on a friction shaft, generally designated by the reference numeral 3 and typically provided by means of a shaft body 4, which is provided peripherally with a plurality of strips 5 which run parallel to the axis and can expand radially by way of the action of expansion chambers 6, which can be connected to a compressed air supply circuit.
  • the strips 5 are made to expand with a pressure whose value can vary as a function of the torque to be applied to the individual cores being wound, so that said reels can adapt uniformly and automatically to different traction conditions during winding.
  • the internal ring 2 is provided with a central body 10, which has an abutment flange 11 at one end and can be coupled to an external ring 15, which is provided with uniformly distributed openings 16 for the protrusion of removable locking elements, constituted by balls 17, which are activated so as to move radially by the rotation of the core of the reel on the external ring, combined with a slight pressure.
  • the external ring 15 is kept in position by means of a locking ring 18, which is retained by a split ring 19, for example of the snap or Seeger type.
  • the particular characteristic of the invention consists in that activation means for activating the locking elements are provided which allow to act in both of the directions of rotation of the friction shaft.
  • Said activation means are constituted by slots 20 provided with a bottom which forms mutually opposite ramps 21 which converge at a central apex 22.
  • the activation means allow to preset the friction ring according to the direction of rotation of the shaft; it is in fact possible to arrange the balls 17 in the end of the slot 20 that matches the direction of rotation to be imparted to the shaft.
  • the slots 20 are uniformly distributed circumferentially and are advantageously arranged on two circumferences or circumferential rows arranged side-by-side in an axial direction; of course, nothing changes conceptually if a single circumference of slots or optionally more than two slots are provided.
  • the slots arranged on the opposite side with respect to the flange 11 are provided with a cutout or undercut 25 which is open toward the free edge, allowing easy insertion of the balls 17.

Landscapes

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

Abstract

Bague de frottement pour arbres de frottement, en particulier pour enrouler des bobines multiples, comprenant une bague interne (2), qui peut être placée sur un arbre de frottement (3) et est associée à une bague externe (15), d'où saillent des éléments (17) pour le blocage réversible du noyau de la bobine à enrouler qui peut être accouplé à la bague de frottement (1), les éléments de blocage (17) étant activés par la rotation du noyau de la bobine sur la bague externe (15), combinée à une légère pression, la bague de frottement (1) comprenant en outre des moyens (20) pour activer les éléments de blocage (17) qui agissent dans les deux sens de rotation de l'arbre de frottement (3).
PCT/EP2006/001406 2005-02-23 2006-02-16 Bague de frottement pour arbres de frottement, en particulier pour enrouler des bobines multiples WO2006089679A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000286A ITMI20050286A1 (it) 2005-02-23 2005-02-23 Anello di frizione per alberi a frizione particolarmente per riavvolgimento di bobine multiple
ITMI2005A000286 2005-02-23

Publications (1)

Publication Number Publication Date
WO2006089679A1 true WO2006089679A1 (fr) 2006-08-31

Family

ID=36204751

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/001406 WO2006089679A1 (fr) 2005-02-23 2006-02-16 Bague de frottement pour arbres de frottement, en particulier pour enrouler des bobines multiples

Country Status (2)

Country Link
IT (1) ITMI20050286A1 (fr)
WO (1) WO2006089679A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20091126A1 (it) * 2009-06-25 2010-12-26 I E S Internat Expanding Shaf Ts S R L Anello di frizione per alberi espandibili, particolarmente per il riavvolgimento di bobine multiple.
ITMI20100038A1 (it) * 2010-01-15 2011-07-16 I E S Internat Expanding Shaf Ts S R L Anello di frizione per alberi a frizione, particolarmente per il riavvolgimento di bobine.
CN106167203A (zh) * 2016-07-16 2016-11-30 瑞安市创博机械有限公司 一种滚珠式滑差轴套及其应用的滑差轴组件
CN108408495A (zh) * 2018-04-17 2018-08-17 江阴市申港电讯器材厂 胀紧件管控牢靠的胀紧圈

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20050286A1 (it) 2005-02-23 2006-08-24 I E S Internat Expanding Shaf Anello di frizione per alberi a frizione particolarmente per riavvolgimento di bobine multiple

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3006565A (en) * 1960-06-30 1961-10-31 Eugene V Pelletier Bobbin clutch
US3850538A (en) * 1973-01-02 1974-11-26 O Hachtmann Clamp coupling
US4767077A (en) * 1986-02-03 1988-08-30 Hiroshi Kataoka Support shaft for winding/unwinding sheets
GB2224813A (en) * 1988-11-14 1990-05-16 David Blackburn Expandible device for internally gripping cores or the like
JPH10265104A (ja) * 1997-03-24 1998-10-06 River Seiki Kk シートロールの芯管用支持軸
JP2001187656A (ja) * 1999-12-28 2001-07-10 Seiwa:Kk 巻芯支持装置
US20020121570A1 (en) * 2001-03-02 2002-09-05 Michael Yermal Apparatus and method employing an annular device for intermediating between a winding mandrel and core
US20030116675A1 (en) * 2001-11-30 2003-06-26 Hans Heuser Friction winding shaft for reversible rotation
ITMI20050286A1 (it) 2005-02-23 2006-08-24 I E S Internat Expanding Shaf Anello di frizione per alberi a frizione particolarmente per riavvolgimento di bobine multiple

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3006565A (en) * 1960-06-30 1961-10-31 Eugene V Pelletier Bobbin clutch
US3850538A (en) * 1973-01-02 1974-11-26 O Hachtmann Clamp coupling
US4767077A (en) * 1986-02-03 1988-08-30 Hiroshi Kataoka Support shaft for winding/unwinding sheets
GB2224813A (en) * 1988-11-14 1990-05-16 David Blackburn Expandible device for internally gripping cores or the like
JPH10265104A (ja) * 1997-03-24 1998-10-06 River Seiki Kk シートロールの芯管用支持軸
JP2001187656A (ja) * 1999-12-28 2001-07-10 Seiwa:Kk 巻芯支持装置
US20020121570A1 (en) * 2001-03-02 2002-09-05 Michael Yermal Apparatus and method employing an annular device for intermediating between a winding mandrel and core
US20030116675A1 (en) * 2001-11-30 2003-06-26 Hans Heuser Friction winding shaft for reversible rotation
ITMI20050286A1 (it) 2005-02-23 2006-08-24 I E S Internat Expanding Shaf Anello di frizione per alberi a frizione particolarmente per riavvolgimento di bobine multiple

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 01 29 January 1999 (1999-01-29) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 24 11 May 2001 (2001-05-11) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20091126A1 (it) * 2009-06-25 2010-12-26 I E S Internat Expanding Shaf Ts S R L Anello di frizione per alberi espandibili, particolarmente per il riavvolgimento di bobine multiple.
ITMI20100038A1 (it) * 2010-01-15 2011-07-16 I E S Internat Expanding Shaf Ts S R L Anello di frizione per alberi a frizione, particolarmente per il riavvolgimento di bobine.
EP2345614A1 (fr) * 2010-01-15 2011-07-20 I.E.S International Expanding Shafts S.R.L. Bague de frottement pour arbres de frottement, en particulier pour enrouler des bobines
WO2011086106A1 (fr) * 2010-01-15 2011-07-21 I.E.S. International Expanding Shafts S.R.L. Bague de frottement pour arbres de frottement, en particulier pour bobines d'enroulement
CN106167203A (zh) * 2016-07-16 2016-11-30 瑞安市创博机械有限公司 一种滚珠式滑差轴套及其应用的滑差轴组件
CN106167203B (zh) * 2016-07-16 2017-06-30 瑞安市创博机械有限公司 一种滚珠式滑差轴套及其应用的滑差轴组件
CN108408495A (zh) * 2018-04-17 2018-08-17 江阴市申港电讯器材厂 胀紧件管控牢靠的胀紧圈

Also Published As

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