FR3108556B1 - Drum for building a tire adapter on a rim - Google Patents

Drum for building a tire adapter on a rim Download PDF

Info

Publication number
FR3108556B1
FR3108556B1 FR2002993A FR2002993A FR3108556B1 FR 3108556 B1 FR3108556 B1 FR 3108556B1 FR 2002993 A FR2002993 A FR 2002993A FR 2002993 A FR2002993 A FR 2002993A FR 3108556 B1 FR3108556 B1 FR 3108556B1
Authority
FR
France
Prior art keywords
roll
drum
building
rim
rods
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 - Fee Related
Application number
FR2002993A
Other languages
French (fr)
Other versions
FR3108556A1 (en
Inventor
Gerard Baumgartner
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.)
Compagnie Generale des Etablissements Michelin SCA
Original Assignee
Compagnie Generale des Etablissements Michelin SCA
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 Compagnie Generale des Etablissements Michelin SCA filed Critical Compagnie Generale des Etablissements Michelin SCA
Priority to FR2002993A priority Critical patent/FR3108556B1/en
Priority to EP21717154.5A priority patent/EP4126521A1/en
Priority to PCT/FR2021/050494 priority patent/WO2021191555A1/en
Publication of FR3108556A1 publication Critical patent/FR3108556A1/en
Application granted granted Critical
Publication of FR3108556B1 publication Critical patent/FR3108556B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/24—Drums
    • B29D30/244—Drums for manufacturing substantially cylindrical tyre components with cores or beads, e.g. carcasses
    • B29D30/246—Drums for the multiple stage building process, i.e. the building-up of the cylindrical carcass is realised on one drum and the toroidal expansion is realised after transferring on another drum
    • B29D30/247—Arrangements for the first stage only, e.g. means for radially expanding the drum to lock the beads
    • 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
    • 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
    • B29D2030/3221—Folding over means, e.g. bladders or rigid arms
    • B29D2030/3264—Folding over means, e.g. bladders or rigid arms using radially expandable, contractible mechanical means, e.g. circumferentially spaced arms, spring rollers, cages

Landscapes

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

Abstract

Tambour de confection (10) expansible radialement destiné à la fabrication d’une ébauche d’adaptateur (1) de pneumatique sur une jante, d’arbre central d’axe X-X’ pour une zone de confection (50) munie d’une pluralité de segments (100, 200), lesdits segments comportant des gorges (103, 203) de réception de tringles, et comportant des dispositifs de retroussage (30, 40) autour de tringles disposés de part et d’autre de la zone de confection (50) en étant adaptés pour être déplacés axialement l’un vers l’autre et l’un à l’écart de l’autre, chaque dispositif de retroussage comportant plusieurs bras de retroussage (31, 41) adjacents disposés circonférentiellement sur le tambour où chaque bras de retroussage présente une extrémité proximale (32, 42) apte à retourner les composants autour des tringles, caractérisé en ce que l’extrémité proximale (32) de chaque bras d’au moins l’un des dispositifs de retroussage (30) comprend au moins deux ressorts hélicoïdaux toriques (321, 322) adjacents, chacun étant destiné à venir au contact de l’ébauche. Figure pour l’abrégé : Fig. 1Radially expandable building drum (10) intended for the manufacture of a tire adapter blank (1) on a rim, with a central shaft of axis X-X' for a building zone (50) provided with a plurality of segments (100, 200), said segments comprising grooves (103, 203) for receiving rods, and comprising devices for rolling up (30, 40) around rods arranged on either side of the zone of garment (50) being adapted to be moved axially towards each other and apart from each other, each roll-up device comprising several adjacent roll-up arms (31, 41) arranged circumferentially on the drum where each roll-up arm has a proximal end (32, 42) capable of turning the components around the rods, characterized in that the proximal end (32) of each arm of at least one of the roll-up devices ( 30) comprises at least two adjacent toroidal coil springs (321, 322), c each being intended to come into contact with the blank. Figure for abstract: Fig. 1

FR2002993A 2020-03-26 2020-03-26 Drum for building a tire adapter on a rim Expired - Fee Related FR3108556B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR2002993A FR3108556B1 (en) 2020-03-26 2020-03-26 Drum for building a tire adapter on a rim
EP21717154.5A EP4126521A1 (en) 2020-03-26 2021-03-23 Drum for building a tire adapter on a rim
PCT/FR2021/050494 WO2021191555A1 (en) 2020-03-26 2021-03-23 Drum for building a tire adapter on a rim

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2002993A FR3108556B1 (en) 2020-03-26 2020-03-26 Drum for building a tire adapter on a rim
FR2002993 2020-03-26

Publications (2)

Publication Number Publication Date
FR3108556A1 FR3108556A1 (en) 2021-10-01
FR3108556B1 true FR3108556B1 (en) 2022-03-18

Family

ID=70614277

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2002993A Expired - Fee Related FR3108556B1 (en) 2020-03-26 2020-03-26 Drum for building a tire adapter on a rim

Country Status (3)

Country Link
EP (1) EP4126521A1 (en)
FR (1) FR3108556B1 (en)
WO (1) WO2021191555A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE443610T1 (en) * 2002-08-05 2009-10-15 Bridgestone Corp TIRE BUILDING DRUM AND TIRE BUILDING PROCESS
KR101455138B1 (en) * 2007-10-25 2014-10-27 후지 세이코 가부시키가이샤 Device for folding body ply
FR3014362B1 (en) 2013-12-11 2017-03-17 Michelin & Cie PERFECTIONED ROLLING ASSEMBLY
FR3066430B1 (en) 2017-05-22 2020-10-30 Michelin & Cie DRUM AND METHOD FOR ASSEMBLING A PNEUMATIC ADAPTER ON A RIM

Also Published As

Publication number Publication date
FR3108556A1 (en) 2021-10-01
EP4126521A1 (en) 2023-02-08
WO2021191555A1 (en) 2021-09-30

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Legal Events

Date Code Title Description
PLFP Fee payment

Year of fee payment: 2

PLSC Publication of the preliminary search report

Effective date: 20211001

PLFP Fee payment

Year of fee payment: 3

ST Notification of lapse

Effective date: 20231105