JPS57212046A - Second stage green tire molding drum - Google Patents

Second stage green tire molding drum

Info

Publication number
JPS57212046A
JPS57212046A JP56096569A JP9656981A JPS57212046A JP S57212046 A JPS57212046 A JP S57212046A JP 56096569 A JP56096569 A JP 56096569A JP 9656981 A JP9656981 A JP 9656981A JP S57212046 A JPS57212046 A JP S57212046A
Authority
JP
Japan
Prior art keywords
green tire
stage green
stage
tire
pistons
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.)
Pending
Application number
JP56096569A
Other languages
Japanese (ja)
Inventor
Yoichi Kikuchi
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.)
Yokohama Rubber Co Ltd
Original Assignee
Yokohama Rubber Co 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 Yokohama Rubber Co Ltd filed Critical Yokohama Rubber Co Ltd
Priority to JP56096569A priority Critical patent/JPS57212046A/en
Publication of JPS57212046A publication Critical patent/JPS57212046A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/36—Expansion of tyres in a flat form, i.e. expansion to a toroidal shape independently of their building-up process, e.g. of tyres built by the flat-tyres method or by jointly covering two bead-rings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/24—Drums
    • B29D30/26—Accessories or details, e.g. membranes, transfer rings
    • B29D2030/2635—Central bladder, e.g. elastic membrane, sleeve, envelope, diaphragm, which covers the central portion of the drum, e.g. covering the toroidally expandable rigid segments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/32—Fitting the bead-rings or bead-cores; Folding the textile layers around the rings or cores
    • B29D2030/3214—Locking the beads on the drum; details of the drum in the bead locking areas, e.g. drum shoulders

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tyre Moulding (AREA)

Abstract

PURPOSE:To easily and exactly fit and hold the first-stage green tire without any deformation by a method in which pistons are respectively provided to radially set cylinders, and by the actions of the pistons, each head receiving seat is expanded or contracted in the radial direction. CONSTITUTION:When the first-stage green tire M is positioned in place, each piston is moved outwards, and each bead receiving seat 4 is expanded in the peripheral direction of a tire molding drum through each link 5 and around a pin 32, whereby exactly holding the left and right-handed beads Ma and Mb of the first stage green tire M. Then, when left and right-handed bladder holders 6 and 41 are mutually moved in the central direction of the drum while injecting air from the air hole 3A of the intermediate shaft into a bladder 10, the first-stage green tire M is deformed from cylindrical form to toroidal form, and then are filled with belt and tread asembly L separately molded. At the time when the deformation into the toroidal form is ended, these are completely joined with the green tire by tread stitcher to complete the molding of the second-stage green tire N.
JP56096569A 1981-06-24 1981-06-24 Second stage green tire molding drum Pending JPS57212046A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56096569A JPS57212046A (en) 1981-06-24 1981-06-24 Second stage green tire molding drum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56096569A JPS57212046A (en) 1981-06-24 1981-06-24 Second stage green tire molding drum

Publications (1)

Publication Number Publication Date
JPS57212046A true JPS57212046A (en) 1982-12-27

Family

ID=14168632

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56096569A Pending JPS57212046A (en) 1981-06-24 1981-06-24 Second stage green tire molding drum

Country Status (1)

Country Link
JP (1) JPS57212046A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2749536A1 (en) * 1996-06-11 1997-12-12 Michelin & Cie DRUM FOR ASSEMBLING A TIRE
WO2002042057A1 (en) * 2000-11-20 2002-05-30 Wyko, Inc. Method and apparatus for control of dual collapsible mandrels
US6475319B1 (en) * 1998-10-30 2002-11-05 Bridgestone Corporation Manufacturing system for pneumatic tires
JP2005262743A (en) * 2004-03-19 2005-09-29 Sumitomo Rubber Ind Ltd Manufacturing method of tire
US20130180646A1 (en) * 2005-11-30 2013-07-18 Pirelli Tyre S.P.A. Method and apparatus for manufacturing tyres
WO2015079344A1 (en) * 2013-11-26 2015-06-04 Pirelli Tyre S.P.A. Method and plant for building tyres
US11298900B2 (en) 2015-12-28 2022-04-12 Pirelli Tyre S.P.A. Process and plant for building tyres

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2749536A1 (en) * 1996-06-11 1997-12-12 Michelin & Cie DRUM FOR ASSEMBLING A TIRE
WO1997047463A1 (en) * 1996-06-11 1997-12-18 Compagnie Generale Des Etablissements Michelin - Michelin & Cie Tyre assembly drum
US6234227B1 (en) 1996-06-11 2001-05-22 Compagnie Generale Des Etablissements Michelin - Michelin & Cie Tire assembly drum
US6475319B1 (en) * 1998-10-30 2002-11-05 Bridgestone Corporation Manufacturing system for pneumatic tires
WO2002042057A1 (en) * 2000-11-20 2002-05-30 Wyko, Inc. Method and apparatus for control of dual collapsible mandrels
US6602372B1 (en) * 2000-11-20 2003-08-05 Wyko, Inc. Method and apparatus for control of dual collapsible mandrels
JP2005262743A (en) * 2004-03-19 2005-09-29 Sumitomo Rubber Ind Ltd Manufacturing method of tire
JP4490712B2 (en) * 2004-03-19 2010-06-30 住友ゴム工業株式会社 Method for manufacturing motorcycle tire
US20130180646A1 (en) * 2005-11-30 2013-07-18 Pirelli Tyre S.P.A. Method and apparatus for manufacturing tyres
WO2015079344A1 (en) * 2013-11-26 2015-06-04 Pirelli Tyre S.P.A. Method and plant for building tyres
CN105813832A (en) * 2013-11-26 2016-07-27 倍耐力轮胎股份公司 Method and plant for building tyres
RU2678662C1 (en) * 2013-11-26 2019-01-30 Пирелли Тайр С.П.А. Method, process and plant for building tyres
US10639860B2 (en) 2013-11-26 2020-05-05 Pirelli Tyre S.P.A. Method and plant for building tyres
US11298900B2 (en) 2015-12-28 2022-04-12 Pirelli Tyre S.P.A. Process and plant for building tyres

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