GB620660A - Method and apparatus for building tires - Google Patents
Method and apparatus for building tiresInfo
- Publication number
- GB620660A GB620660A GB15112/45A GB1511245A GB620660A GB 620660 A GB620660 A GB 620660A GB 15112/45 A GB15112/45 A GB 15112/45A GB 1511245 A GB1511245 A GB 1511245A GB 620660 A GB620660 A GB 620660A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drum
- ring
- fabric
- bead
- rolls
- 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
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
- B29D30/32—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
- B29D2030/3264—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)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Tyre Moulding (AREA)
Abstract
620,660. Pneumatic tyres. GENERAL TIRE & RUBBER CO. June 14, 1945, No. 15112. Convention date, June 14, 1944. [Class 144 (i)] Relates to means, of the kind described in Specification 614,162, for building a tyre cover by the flat-band process, comprising assembling a band of fabric with its edges overlapping the shouldered edges of the building-drum and then folded over applied bead-rings, assembling further plies (with their edges projecting beyond the beads) and tread rubber, the built-up cover being then compacted by radial pressure applied across the full width of the rotating drum, stitching the fabric plies to the outer faces of the beads, stopping the drum and folding the edges of the outer plies under the beads to which axial and radial pressures are then applied simultaneously throughout the full circumference. Fig. 1 shows the general lay-out of a machine comprising a collapsable building- drum A, fixed and movable bead-setting heads C, B, respectively, and tread-consolidating rollers 121, 122. Bead-building. As shown in Fig. 14, the devices for applying the beads comprise rings 24 coaxial with the drum-shaft and moved to and from the drum A by pressure-operated linkage-gear. Mounted within each of the rings 24 is a stepped ring 35 on which the beadring E with flipper F is assembled. The ring 35 is yieldingly carried with the ring 24 in its forward traverse until arrested by contact of the bead-ring with the folded-down edge of the fabric on the drum-head. Each ring 24 carries a smoothing-ring 40 in the form of a contractile endless coil-spring of normally less diameter than the drum so that, on further advance of the ring 24, the ring 40 expands into forcible engagement with the edge portion of the fabric on the drum periphery. For folding the edge of the fabric inwardly over the drum-shoulders, each head is provided with a coil-spring ring 42 carried by arms 43 which are actuated by toggle-mechanism 47, 48, 51 to cause the ring 42 to wipe down the overhanging edge portion of the 'fabric. After assembly of the bead-ring, the fabric flap between the drum-edge and the bead is folded axially and radially outwards over the bead by discs 64, 65, 66, each formed of radiallymovable segments mounted between a disc 63 and a retaining-plate 67. As the discs are moved axially, the segments are displaced radially, by linkage-gear 70, to expand and contract the discs in their (axially) outward and inward movements respectively. Figs. 21, 25, 26 show means for applying the tread rubber and consolidating the built-up cover. Rubber stock G is fed from a table 120 to the underside of the rotating drum A and consolidated by a set of pressure-rolls 121, 122, a pair of conical rolls 126 for operating on the shoulder portions P, and sets of stitcher-wheels 123, 124, 125 which operate on the edge portions of the fabric. The pressure-rolls comprise a central solid roll 122 profiled to operate on the concave portion m of the tread, and yielding side-rolls 121 for operating on the side-wall portions r of the tyre. The rolls 121 comprise laminated rings 128 supported on a soft rubber cushion 129. The pressure-rolls are carried on linked radiusarms 134, 136 and are raised into operative position by the ram 141 of a power-cylinder 142. The stitchers 123-5 are similarly moved by means of a power-cylinder 154. The shoulderpressing rolls 126 are carried on a pivoted hanger 160 which is connected by a chain 162 to a rocker 152 pivoted at 149 on the head of the ram 153.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US620660XA | 1944-06-14 | 1944-06-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB620660A true GB620660A (en) | 1949-03-29 |
Family
ID=22039998
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB15112/45A Expired GB620660A (en) | 1944-06-14 | 1945-06-14 | Method and apparatus for building tires |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB620660A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1103562B (en) * | 1955-08-17 | 1961-03-30 | Gen Tire & Rubber Co | Device for building up pneumatic tires using the flat belt method |
DE1108416B (en) * | 1959-05-22 | 1961-06-08 | Dunlop Gummi Cie Ag Deutsche | Machine for the flat construction of pneumatic vehicle tires |
DE1214873B (en) * | 1961-07-04 | 1966-04-21 | Dunlop Rubber Co | Device for building pneumatic vehicle tires |
DE1262581B (en) * | 1964-04-02 | 1968-03-07 | Continental Gummi Werke Ag | Tire building drum with a device for applying carcass fabric edges |
US3489634A (en) * | 1965-06-24 | 1970-01-13 | Uniroyal Inc | Apparatus for building tires and the like |
EP2896497A1 (en) * | 2014-01-21 | 2015-07-22 | Continental Reifen Deutschland GmbH | Method for producing a tyre for a vehicle |
US10589482B2 (en) * | 2008-07-23 | 2020-03-17 | PIRELLI TYPRE S.p.A. | Process for manufacturing tyres for vehicle wheels |
-
1945
- 1945-06-14 GB GB15112/45A patent/GB620660A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1103562B (en) * | 1955-08-17 | 1961-03-30 | Gen Tire & Rubber Co | Device for building up pneumatic tires using the flat belt method |
DE1108416B (en) * | 1959-05-22 | 1961-06-08 | Dunlop Gummi Cie Ag Deutsche | Machine for the flat construction of pneumatic vehicle tires |
DE1214873B (en) * | 1961-07-04 | 1966-04-21 | Dunlop Rubber Co | Device for building pneumatic vehicle tires |
DE1262581B (en) * | 1964-04-02 | 1968-03-07 | Continental Gummi Werke Ag | Tire building drum with a device for applying carcass fabric edges |
US3489634A (en) * | 1965-06-24 | 1970-01-13 | Uniroyal Inc | Apparatus for building tires and the like |
US10589482B2 (en) * | 2008-07-23 | 2020-03-17 | PIRELLI TYPRE S.p.A. | Process for manufacturing tyres for vehicle wheels |
EP2896497A1 (en) * | 2014-01-21 | 2015-07-22 | Continental Reifen Deutschland GmbH | Method for producing a tyre for a vehicle |
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