GB907694A - Improvements in or relating to tyre building - Google Patents

Improvements in or relating to tyre building

Info

Publication number
GB907694A
GB907694A GB290558A GB290558A GB907694A GB 907694 A GB907694 A GB 907694A GB 290558 A GB290558 A GB 290558A GB 290558 A GB290558 A GB 290558A GB 907694 A GB907694 A GB 907694A
Authority
GB
United Kingdom
Prior art keywords
members
carcase
ply
over
bead
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
GB290558A
Inventor
Jack Milner Lowe
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 GB290558A priority Critical patent/GB907694A/en
Publication of GB907694A publication Critical patent/GB907694A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00Producing pneumatic or solid tyres or parts thereof
    • B29D30/06Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08Building tyres
    • B29D30/20Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/24Drums
    • B29D30/244Drums for manufacturing substantially cylindrical tyre components with cores or beads, e.g. carcasses
    • B29D30/245Drums 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00Producing pneumatic or solid tyres or parts thereof
    • B29D30/06Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08Building tyres
    • B29D30/20Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/32Fitting the bead-rings or bead-cores; Folding the textile layers around the rings or cores
    • B29D2030/3214Locking the beads on the drum; details of the drum in the bead locking areas, e.g. drum shoulders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00Producing pneumatic or solid tyres or parts thereof
    • B29D30/06Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08Building tyres
    • B29D30/20Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/32Fitting the bead-rings or bead-cores; Folding the textile layers around the rings or cores
    • B29D2030/3221Folding over means, e.g. bladders or rigid arms
    • B29D2030/3228Folding over means, e.g. bladders or rigid arms using one bladder acting on each side of the drum
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00Producing pneumatic or solid tyres or parts thereof
    • B29D30/06Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08Building tyres
    • B29D30/20Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/32Fitting the bead-rings or bead-cores; Folding the textile layers around the rings or cores
    • B29D2030/3221Folding over means, e.g. bladders or rigid arms
    • B29D2030/3242Folding over means, e.g. bladders or rigid arms and with means for pressing the bladder against the ply material, e.g. bladder guide shoes, cages, arms
    • B29D2030/325Folding over means, e.g. bladders or rigid arms and with means for pressing the bladder against the ply material, e.g. bladder guide shoes, cages, arms the means being radially expandable and contractible

Abstract

907,694. Building pneumatic tyres. DUNLOP RUBBER CO. Ltd. Jan. 14, 1959 [Jan. 29, 1958], No. 2905/58. Class 144 (1). An unshaped flat band tyre carcase is formed by disposing a pocket of carcase ply fabric around a pair of coaxial, spaced, radiallyexpansible bead core-gripping members 3 with the central portion of the pocket unsupported and enclosing the space between the members 3 and the ends of the pocket extending axially outwardly beyond the members 3, positioning bead cores 22 to be gripped by expansion of the members 3 and then turning over the ply ends around the bead wires on to the centre portion by means 4 associated with each member 3. The space 33 between the members 3 is pressurized via pipe 34 to support the otherwise unsupported centre portion of the ply during the turn-over operation, which is effected as shown by the means described in Specification 884,513. The bead-gripping members 3 comprise rigid supports 5 each slidably mounted on a shaft 1 with its inner periphery recessed to form a double-acting cylinder 7, 8 co-operating with a fixed piston member 9 on the shaft 1, ducts 10, 11 providing for selective supply of pressure fluid to the chambers 7, 8 to effect approach or retraction of the supports 5. Each support 5 has an outer peripheral recess 17 housing an annular inflatable tube 18 serving to expand a rubber ring 19 the periphery of which is grooved to seat and locate the bead core 22. In operation, after ply turn-over has been effected by the means 4 and side wall strips 36 have been applied to the unshaped carcase, the supports 5 are moved towards each other and the space 33 further pressurized to shape the carcase into contact with a breaker 38 and tread band 37 carried by an expansible rigid support or mould ring 37, Fig. 5. Instead of the turn-over means 4 of Specification 884,513, that described in Specification 872,038 may be used.
GB290558A 1958-01-29 1958-01-29 Improvements in or relating to tyre building Expired GB907694A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB290558A GB907694A (en) 1958-01-29 1958-01-29 Improvements in or relating to tyre building

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB290558A GB907694A (en) 1958-01-29 1958-01-29 Improvements in or relating to tyre building
ES0246585A ES246585A1 (en) 1958-01-29 1959-01-15 Improvements in or relating to tyre building
FR785305A FR1221091A (en) 1958-01-29 1959-01-29 Method and apparatus for the manufacture of tires
DED29892A DE1229281B (en) 1958-01-29 1959-01-29 Tire building machine

Publications (1)

Publication Number Publication Date
GB907694A true GB907694A (en) 1962-10-10

Family

ID=9748262

Family Applications (1)

Application Number Title Priority Date Filing Date
GB290558A Expired GB907694A (en) 1958-01-29 1958-01-29 Improvements in or relating to tyre building

Country Status (4)

Country Link
DE (1) DE1229281B (en)
ES (1) ES246585A1 (en)
FR (1) FR1221091A (en)
GB (1) GB907694A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1241971B (en) * 1962-12-04 1967-06-08 Us Rubber Co Apparatus for folding the edge of a green tire carcass around a bead core
DE1246226B (en) * 1963-11-27 1967-08-03 Continental Gummi Werke Ag Tire building drum

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3101289A (en) * 1959-04-24 1963-08-20 Pirelli Method of making expansible tubular diaphragms for tire building drums
US3107192A (en) * 1960-03-16 1963-10-15 Goodyear Tire & Rubber Apparatus for shaping tires
DE1233585B (en) * 1961-02-10 1967-02-02 Kleber Colombes Drum for building / or bowing and blanks for vehicle pneumatic tires
FR1311161A (en) * 1961-06-15 1962-12-07 Dunlop Sa Method and apparatus for laying strips of tissue or the like material around cores for tires of envelopes
DE1241970B (en) * 1962-08-21 1967-06-08 Deutsche Dunlop Gummi Cie Ag Machine for the construction of pneumatic vehicle tires
DE1302012B (en) * 1962-08-21 1969-09-25 Dunlop Ag Building drum for the flat construction and the subsequent crowning of the carcass of a vehicle pneumatic tire
DE1579145B1 (en) * 1965-08-25 1972-02-03 Continental Gummi Werke Ag Machine for building pneumatic tire blanks
JPS4918790B1 (en) * 1970-12-29 1974-05-13

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE401517C (en) * 1921-09-24 1924-09-05 Ernest Hopkinson Method and apparatus for the production of Laufmaenteln
US1551040A (en) * 1922-07-08 1925-08-25 Fisk Rubber Co Tire building
US2251904A (en) * 1938-10-14 1941-08-12 Gen Tire & Rubber Co Tire building machine
DE861465C (en) * 1940-11-15 1953-01-05 Continental Gummi Werke Ag Method and device for the production of pneumatic vehicle tires
DE834012C (en) * 1946-03-05 1952-03-13 Dunlop Rubber Co Method and apparatus for the manufacture of pneumatic vehicle tires according to the flat band method
US2754886A (en) * 1953-09-29 1956-07-17 Firestone Tire & Rubber Co Tire building apparatus
US2814331A (en) * 1956-04-20 1957-11-26 Vanzo Marcello Process for building pneumatic tires

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1241971B (en) * 1962-12-04 1967-06-08 Us Rubber Co Apparatus for folding the edge of a green tire carcass around a bead core
DE1246226B (en) * 1963-11-27 1967-08-03 Continental Gummi Werke Ag Tire building drum

Also Published As

Publication number Publication date
DE1229281B (en) 1966-11-24
FR1221091A (en) 1960-05-31
ES246585A1 (en) 1959-08-16

Similar Documents

Publication Publication Date Title
US2814331A (en) Process for building pneumatic tires
US3188260A (en) Apparatus for manufacture of pneumatic tires
US2997738A (en) Apparatus and method for positioning a tire in a curing press
US2182176A (en) Apparatus for forming pneumatic tire casings
US3127294A (en) Method and apparatus for building tires
US3111443A (en) Apparatus for manufacturing tires
US3910735A (en) Apparatus for molding and curing a pneumatic tire in a perfectly centered position with respect to the equatorial plane of the curing mold
CA1144465A (en) Building and shaping a tire
US2724425A (en) Tire building method
KR950002971A (en) Tire production drum and tire manufacturing method with improved mobility
US3784426A (en) Method of building tires
GB1268665A (en) Tyre making apparatus
GB2046679A (en) Tyre carcass assembly
ES452004A1 (en) Apparatus for molding pneumatic vehicular tires
US3077917A (en) Tire building machine
GB1515119A (en) Rotary locking mechanism
US3405023A (en) Tire building drum
GB1110418A (en) Tires and method of manufacture thereof
US2614951A (en) Pneumatic tire building drum
GB727576A (en) Improvements in tire building machine
US3035629A (en) Tire building apparatus and method
ES403916A1 (en) Pneumatic tires
US4134783A (en) Tire building system
GB1409369A (en) Tyre building machine
US2715933A (en) Tire building drum