GB1250807A - - Google Patents

Info

Publication number
GB1250807A
GB1250807A GB1250807DA GB1250807A GB 1250807 A GB1250807 A GB 1250807A GB 1250807D A GB1250807D A GB 1250807DA GB 1250807 A GB1250807 A GB 1250807A
Authority
GB
United Kingdom
Prior art keywords
drum
carcass
bladder
tyre
chuck
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
Application number
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 filed Critical
Publication of GB1250807A publication Critical patent/GB1250807A/en
Expired 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)
    • B29D30/08—Building tyres
    • B29D30/10—Building tyres on round cores, i.e. the shape of the core is approximately identical with the shape of the completed tyre
    • B29D30/12—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
    • B29D30/24—Drums
    • B29D30/244—Drums for manufacturing substantially cylindrical tyre components with cores or beads, e.g. carcasses
    • B29D30/245—Drums for the single stage building process, i.e. the building-up of the cylindrical carcass and the toroidal expansion of it are realised on the same drum
    • 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
    • B29D2030/3207—Positioning 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
    • B29D2030/3214—Locking the beads on the drum; details of the drum in the bead locking areas, e.g. drum shoulders
    • 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
    • B29D2030/3257—Folding over means, e.g. bladders or rigid arms using pressing rollers
    • 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
    • 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
    • B29D2030/3278—Folding down the ends of the tubular tyre component, e.g. the carcass, over the drum shoulders

Landscapes

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

Abstract

1,250,807. Tyre building apparatus. E. J. HARRIS. 15 Nov., 1968 [17 Nov., 1967], No. 54450/68. Heading B7C: Tyre building apparatus comprises a rotatable cylindrical drum G separable axially into two drum portions 55, 56, a chuck 200, 201 supporting a bladder 218 inflatable into a toroidal configuration and having its axis co-incident with that of the drum, and non-rotatable gripping means 106, 110 located either side of the bladder and arranged for movement towards and away from the bladder and radially inwardly and outwardly so that during tyre manufacture a carcass band formerly supported on the drum may be gripped and moved around the bladder. A tyre is manufactured in the following manner: Initially the drum portions are separated and beads are stored on members 123, the drum portions being then brought together into contact with the inflated bladder. The carcass band is then built up upon the drum in the usual manner, the drum portions being rotated by means of motor 46 by way of spline 45, pulleys 48, 49, belts, pulleys 50, 51, pinion 28 and ring gear 27, the latter being connected to castings 22 on the exterior of which the drum portions slide. The chuck is rotated also by the motor 46 from pulley 51 by means of pinion 31 and ring gear 33. The drum portions are then withdrawn along the castings by engagement with rope and pulley means 63, 61 actuated by a pneumatic ram. Support rollers may then if necessary be placed under the carcass if necessary to prevent it collapsing. Gripping bands 106, 110 mounted on arms 87 then clamp the ends of the carcass and are then reduced in size as carriages mounting the arms move towards the chuck and shape the carcass over the bladder. After release of the gripping means the beads are placed on beads setters 125 and applied against the carcass. Turn up wheels 160 then position the band edges around the beads by rotation of the chuck. Breakers, tread and side walls are then stitched on to the carcass in the normal way before quill 205 is disengaged from the chuck and the tyre removed. The carriages supporting the arms 87 are actuated by rams 148, 149 and 155, 156, 158. The bead ring supports are retractable to reduce the diameter thereof by a gear mechanism thereby allowing removal of the tyre.
GB1250807D 1967-11-17 1968-11-15 Expired GB1250807A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US68388167A 1967-11-17 1967-11-17

Publications (1)

Publication Number Publication Date
GB1250807A true GB1250807A (en) 1971-10-20

Family

ID=24745841

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1250807D Expired GB1250807A (en) 1967-11-17 1968-11-15

Country Status (3)

Country Link
DE (1) DE1808978A1 (en)
FR (1) FR1591923A (en)
GB (1) GB1250807A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2195960A (en) * 1986-09-24 1988-04-20 Apsley Metals Ltd Tyre building machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4314864A (en) * 1980-05-07 1982-02-09 The Firestone Tire & Rubber Company Method and apparatus for building a tire

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2195960A (en) * 1986-09-24 1988-04-20 Apsley Metals Ltd Tyre building machine
GB2195960B (en) * 1986-09-24 1990-07-18 Apsley Metals Ltd Tyre building apparatus

Also Published As

Publication number Publication date
FR1591923A (en) 1970-05-04
DE1808978A1 (en) 1969-08-07

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees