GB606411A - Improvements in and relating to apparatus for and methods of building tyre covers - Google Patents

Improvements in and relating to apparatus for and methods of building tyre covers

Info

Publication number
GB606411A
GB606411A GB674746A GB674746A GB606411A GB 606411 A GB606411 A GB 606411A GB 674746 A GB674746 A GB 674746A GB 674746 A GB674746 A GB 674746A GB 606411 A GB606411 A GB 606411A
Authority
GB
United Kingdom
Prior art keywords
tubes
band
beads
inflated
drum
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
GB674746A
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.)
Dunlop Rubber Co Ltd
Original Assignee
Dunlop 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 Dunlop Rubber Co Ltd filed Critical Dunlop Rubber Co Ltd
Priority to GB674746A priority Critical patent/GB606411A/en
Publication of GB606411A publication Critical patent/GB606411A/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
    • B29D30/20—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
    • 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)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Tyre Moulding (AREA)
  • Tires In General (AREA)

Abstract

606,411. Pneumatic tyres. DUNLOP RUBBER CO., Ltd., and NORCROSS, T. March 5, 1946, No. 6747. [Class 144 (i)] Tyre components in endless-band form are assembled on a rotary drum 1 having two or more inflatable tubes on its periphery which are expanded to exert consolidating pressure on the superposed tyre materials. In the apparatus shown, a central tube 5 and two side-tubes 6, connected through 3-way valves 13, 10 respectively to a pressure-fluid supply, are seated in the recessed face of the drum. Preferably, a rubber or like expansible band 7 is secured over the tubes. As shown in Fig. 2, a ply-pocket band 17, beads 19 and breaker-strip 18 are laid on the band 7 and the tubes are then slightly inflated to establish a grip between the drum, bands 7 and 17 and breaker-strip 18. The beads 19 are next moved up to positioning- rollers by means of a hand-tool of known type and, after removal of the rollers, the side-tubes 6 are further inflated to consolidate the grip on the beads. The edges of the band 17 are then folded over the beads on which fillers and chafer-strips are next applied and consolidated. The tubes 6 are then deflated for application of the pre-formed tread 22 which is consolidated by further inflation of the tube 5. The tubes 6 may be inflated to provide the necessary resistance during the rolling-down operation on the tread.
GB674746A 1946-03-05 1946-03-05 Improvements in and relating to apparatus for and methods of building tyre covers Expired GB606411A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB674746A GB606411A (en) 1946-03-05 1946-03-05 Improvements in and relating to apparatus for and methods of building tyre covers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB674746A GB606411A (en) 1946-03-05 1946-03-05 Improvements in and relating to apparatus for and methods of building tyre covers

Publications (1)

Publication Number Publication Date
GB606411A true GB606411A (en) 1948-08-12

Family

ID=9820049

Family Applications (1)

Application Number Title Priority Date Filing Date
GB674746A Expired GB606411A (en) 1946-03-05 1946-03-05 Improvements in and relating to apparatus for and methods of building tyre covers

Country Status (1)

Country Link
GB (1) GB606411A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3077917A (en) * 1959-08-25 1963-02-19 Goodyear Tire & Rubber Tire building machine
US3097985A (en) * 1959-06-30 1963-07-16 Kleber Colombes Tire building drum
DE977313C (en) * 1950-11-02 1965-12-30 Gen Tire & Rubber Co Method and device for the production of pneumatic tires according to the flat belt process

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE977313C (en) * 1950-11-02 1965-12-30 Gen Tire & Rubber Co Method and device for the production of pneumatic tires according to the flat belt process
US3097985A (en) * 1959-06-30 1963-07-16 Kleber Colombes Tire building drum
US3077917A (en) * 1959-08-25 1963-02-19 Goodyear Tire & Rubber Tire building machine

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