GB637621A - Improvements in method and apparatus for building tires - Google Patents

Improvements in method and apparatus for building tires

Info

Publication number
GB637621A
GB637621A GB672048A GB672048A GB637621A GB 637621 A GB637621 A GB 637621A GB 672048 A GB672048 A GB 672048A GB 672048 A GB672048 A GB 672048A GB 637621 A GB637621 A GB 637621A
Authority
GB
United Kingdom
Prior art keywords
drum
band
drums
moved
cylinder
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
GB672048A
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.)
National Standard Co
Original Assignee
National Standard Co
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
Priority to US625789A priority Critical patent/US2440662A/en
Application filed by National Standard Co filed Critical National Standard Co
Priority to GB672048A priority patent/GB637621A/en
Publication of GB637621A publication Critical patent/GB637621A/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
    • B29D30/248—Drums of the undercut type without toroidal expansion, e.g. with provisions for folding down the plies, for positioning the beads under the surface of the 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
    • B29D2030/241—Auxiliary drums used for temporary storage of the layers before application to the building drums
    • 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
    • B29D2030/3242—Folding 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

Landscapes

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

Abstract

- 637,621. Pneumatic tyres. ARNOLD, J. C. (National-Standard Co.). March 3, 1948, No. 6720. [Class 144 (i)] Apparatus for use in the manufacture of tyre covers by the flat-band process comprises a main building - drum 4 mounted between auxiliary drums 6, 10 axially displaceable with respect to the main drum, the drum 10 being normally of lesser diameter than the drums 4, 6 but adaptable to increased diameter. As shown, the drum 10 is fitted with an inflatable. air-bag 11 on which (whilst collapsed) the tyre-casing plies 19 are laid. A hollow cylinder 14 is then moved into the position shown in Fig. 4, and the bag 11 inflated to force the band 19 into adhesive contact with the inner periphery of the cylinder 14. The latter is then moved into the position shown in Fig. 6 where it completely overlies the drums 4, 6 with the trailing edge of the band 19 folded under a narrow drum 17 of the same diameter as the drum 4. The drum 10 is then retracted (Fig. 7) leaving the band 19 on the drum 4 and the auxiliary drums 6, 17. Finally, the latter are moved clear of the main drum (Fig. 8) leaving edge flaps 20, 21 of the band 19 in position to receive the bead elements. As shown in Fig. 10, the rigid cylinder 14 may be replaced by a series of endless webs 50 traversing rollers 51, 52 on a framework comprising channelled racks 53 ... 56 driven by pinions 57 ... 60 and bevel gears 49 from a motor 48.
GB672048A 1945-10-31 1948-03-03 Improvements in method and apparatus for building tires Expired GB637621A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US625789A US2440662A (en) 1945-10-31 1945-10-31 Apparatus for building tires
GB672048A GB637621A (en) 1948-03-03 1948-03-03 Improvements in method and apparatus for building tires

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB672048A GB637621A (en) 1948-03-03 1948-03-03 Improvements in method and apparatus for building tires

Publications (1)

Publication Number Publication Date
GB637621A true GB637621A (en) 1950-05-24

Family

ID=9819550

Family Applications (1)

Application Number Title Priority Date Filing Date
GB672048A Expired GB637621A (en) 1945-10-31 1948-03-03 Improvements in method and apparatus for building tires

Country Status (1)

Country Link
GB (1) GB637621A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1115437B (en) * 1957-03-02 1961-10-19 Dunlop Rubber Co Process for the production of flexible, ring-shaped membranes from a rubber body which is stiffened by at least two cord inserts
DE1145350B (en) * 1956-09-05 1963-03-14 Dunlop Rubber Co Device for turning over the ends of one or more cord fabric layers embedded in rubber
DE1205271B (en) * 1959-08-25 1965-11-18 Goodyear Tire & Rubber Method and apparatus for building a tire carcass
DE1246226B (en) * 1963-11-27 1967-08-03 Continental Gummi Werke Ag Tire building drum

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1145350B (en) * 1956-09-05 1963-03-14 Dunlop Rubber Co Device for turning over the ends of one or more cord fabric layers embedded in rubber
DE1115437B (en) * 1957-03-02 1961-10-19 Dunlop Rubber Co Process for the production of flexible, ring-shaped membranes from a rubber body which is stiffened by at least two cord inserts
DE1205271B (en) * 1959-08-25 1965-11-18 Goodyear Tire & Rubber Method and apparatus for building a tire carcass
DE1246226B (en) * 1963-11-27 1967-08-03 Continental Gummi Werke Ag Tire building drum

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