IT1269710B - PNEUMATIC EXPANDABLE SHAFT WITH MECHANICAL PRECENTRATION MEANS FOR THE SUPPORT OF COILS AND SIMILAR - Google Patents

PNEUMATIC EXPANDABLE SHAFT WITH MECHANICAL PRECENTRATION MEANS FOR THE SUPPORT OF COILS AND SIMILAR

Info

Publication number
IT1269710B
IT1269710B ITMI940175A ITMI940175A IT1269710B IT 1269710 B IT1269710 B IT 1269710B IT MI940175 A ITMI940175 A IT MI940175A IT MI940175 A ITMI940175 A IT MI940175A IT 1269710 B IT1269710 B IT 1269710B
Authority
IT
Italy
Prior art keywords
mechanical
coils
precentration
similar
support
Prior art date
Application number
ITMI940175A
Other languages
Italian (it)
Inventor
Giovanni Gattrugeri
Original Assignee
Ies Srl
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 Ies Srl filed Critical Ies Srl
Priority to ITMI940175A priority Critical patent/IT1269710B/en
Publication of ITMI940175A0 publication Critical patent/ITMI940175A0/en
Priority to DE69504715T priority patent/DE69504715D1/en
Priority to EP95100854A priority patent/EP0665180B1/en
Publication of ITMI940175A1 publication Critical patent/ITMI940175A1/en
Application granted granted Critical
Publication of IT1269710B publication Critical patent/IT1269710B/en

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
    • B65H75/243—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages actuated by use of a fluid
    • B65H75/2437—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages actuated by use of a fluid comprising a fluid-pressure-actuated elastic member, e.g. a diaphragm or a pneumatic tube

Landscapes

  • Winding Of Webs (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)

Abstract

Il presente trovato si riferisce ad un albero espandibile ad azionamento pneumatico con mezzi meccanici di precentraggio per il supporto di bobine e simili che comprende un corpo cilindrico allungato inseribile assialmente in una bobina e presentante, sulla superficie esterna, una pluralità di listelli circonferenzialmente uniformemente distribuiti ed espandibili radialmente per l'azione di camere pneumatiche.La peculiarità del trovato è costituita dal fatto che almeno tre dei citati listelli sono elasticamente flessibili per definire almeno porzioni del loro sviluppo longitudinale espandibili radialmente per elasticità intrinseca per definire zone di precentraggio meccanico di detto albero rispetto a detta bobina.The present invention relates to a pneumatically operated expandable shaft with mechanical pre-centering means for supporting coils and the like which comprises an elongated cylindrical body which can be axially inserted in a coil and which has, on the external surface, a plurality of circumferentially uniformly distributed strips and radially expandable by the action of pneumatic chambers The peculiarity of the invention is that at least three of the mentioned strips are elastically flexible to define at least portions of their longitudinal development radially expandable by intrinsic elasticity to define areas of mechanical pre-centering of said shaft with respect to to said coil.

ITMI940175A 1994-02-01 1994-02-01 PNEUMATIC EXPANDABLE SHAFT WITH MECHANICAL PRECENTRATION MEANS FOR THE SUPPORT OF COILS AND SIMILAR IT1269710B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ITMI940175A IT1269710B (en) 1994-02-01 1994-02-01 PNEUMATIC EXPANDABLE SHAFT WITH MECHANICAL PRECENTRATION MEANS FOR THE SUPPORT OF COILS AND SIMILAR
DE69504715T DE69504715D1 (en) 1994-02-01 1995-01-23 Pneumatically operated expansion winding shaft with mechanical self-centering device
EP95100854A EP0665180B1 (en) 1994-02-01 1995-01-23 Pneumatically-actuated expanding shaft with mechanical pre-centering means for supporting rolls and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI940175A IT1269710B (en) 1994-02-01 1994-02-01 PNEUMATIC EXPANDABLE SHAFT WITH MECHANICAL PRECENTRATION MEANS FOR THE SUPPORT OF COILS AND SIMILAR

Publications (3)

Publication Number Publication Date
ITMI940175A0 ITMI940175A0 (en) 1994-02-01
ITMI940175A1 ITMI940175A1 (en) 1995-08-01
IT1269710B true IT1269710B (en) 1997-04-15

Family

ID=11367717

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI940175A IT1269710B (en) 1994-02-01 1994-02-01 PNEUMATIC EXPANDABLE SHAFT WITH MECHANICAL PRECENTRATION MEANS FOR THE SUPPORT OF COILS AND SIMILAR

Country Status (3)

Country Link
EP (1) EP0665180B1 (en)
DE (1) DE69504715D1 (en)
IT (1) IT1269710B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1283439B1 (en) * 1996-07-17 1998-04-21 Finsid S R L PNEUMATIC EXPANDING SHAFT
DE10151860B4 (en) * 2001-10-24 2004-01-29 Saueressig Gmbh & Co. Tensioning shaft, system consisting of tensioning shaft and sleeve and rotary printing machine as well as processes for the dynamic stabilization of a tensioning shaft
CN101602450B (en) * 2009-07-02 2011-04-06 西南铝业（集团）有限责任公司 Air bag type expanded shaft

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2248716A (en) * 1940-04-20 1941-07-08 Jr George B Markle Arbor for spools or the like
IT1100972B (en) * 1978-10-23 1985-09-28 Gattrugeri Giovanni DYNAMIC FLUID EXPANSION ELEMENT SHAFT FOR FIXING
FR2632294B3 (en) * 1988-06-02 1990-12-21 Achard Picard Jean EXPANDABLE AND RETRACTABLE SHAFT, PARTICULARLY FOR TIGHTENING COIL CHUCKS RECEIVING BAND MATERIALS

Also Published As

Publication number Publication date
EP0665180B1 (en) 1998-09-16
ITMI940175A0 (en) 1994-02-01
ITMI940175A1 (en) 1995-08-01
DE69504715D1 (en) 1998-10-22
EP0665180A3 (en) 1996-04-03
EP0665180A2 (en) 1995-08-02

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970225