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1. WO2000038906 - METHOD FOR MANUFACTURING A CARCASS FOR TYRES AND A CARCASS OBTAINED THEREBY

Publication Number WO/2000/038906
Publication Date 06.07.2000
International Application No. PCT/EP1999/009389
International Filing Date 01.12.1999
Chapter 2 Demand Filed 06.07.2000
IPC
B29D 30/10 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
30Producing pneumatic or solid tyres or parts thereof
06Pneumatic tyres or parts thereof
08Building tyres
10on round cores, i.e. the shape of the core is approximately identical with the shape of the completed tyre
B29D 30/48 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
30Producing pneumatic or solid tyres or parts thereof
06Pneumatic tyres or parts thereof
48Bead-rings or bead-cores; Treatment thereof prior to building the tyre
B60C 9/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
9Reinforcements or ply arrangement of pneumatic tyres
02Carcasses
B60C 15/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
15Tyre beads, e.g. ply turn-up or overlap
B60C 15/06 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
15Tyre beads, e.g. ply turn-up or overlap
06Flipper strips, fillers, or chafing strips
CPC
B29D 2030/1685
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
30Producing pneumatic or solid tyres or parts thereof
06Pneumatic tyres or parts thereof ; (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
08Building tyres
10on round cores, i.e. the shape of the core is approximately identical with the shape of the completed tyre
16Applying the layers; Guiding or stretching the layers during application
1664Details, accessories or auxiliary operations not provided for in the other subgroups of B29D30/00
1685the layers being applied being already cut to the appropriate length, before the application step
B29D 30/10
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
30Producing pneumatic or solid tyres or parts thereof
06Pneumatic tyres or parts thereof ; (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
08Building tyres
10on round cores, i.e. the shape of the core is approximately identical with the shape of the completed tyre
B29D 30/1621
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
30Producing pneumatic or solid tyres or parts thereof
06Pneumatic tyres or parts thereof ; (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
08Building tyres
10on round cores, i.e. the shape of the core is approximately identical with the shape of the completed tyre
16Applying the layers; Guiding or stretching the layers during application
1621by feeding a continuous band and winding it spirally, i.e. the band is fed without relative movement along the core axis, to form an annular element
B29D 30/165
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
30Producing pneumatic or solid tyres or parts thereof
06Pneumatic tyres or parts thereof ; (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
08Building tyres
10on round cores, i.e. the shape of the core is approximately identical with the shape of the completed tyre
16Applying the layers; Guiding or stretching the layers during application
165by feeding cut-to-length pieces in a direction parallel to the core axis and placing the pieces side-by-side to form an annular element
B29D 30/48
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
30Producing pneumatic or solid tyres or parts thereof
06Pneumatic tyres or parts thereof ; (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
48Bead-rings or bead-cores
B60C 15/0018
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES
15Tyre beads, e.g. ply turn-up or overlap
0009features of the carcass terminal portion
0018not folded around the bead core, e.g. floating or down ply
Applicants
  • PIRELLI PNEUMATICI S.P.A. [IT/IT]; Viale Sarca, 222 I-20126 Milano, IT (AllExceptUS)
  • CARETTA, Renato [IT/IT]; IT (UsOnly)
  • MARCHINI, Maurizio [IT/IT]; IT (UsOnly)
Inventors
  • CARETTA, Renato; IT
  • MARCHINI, Maurizio; IT
Agents
  • TANSINI, Elio, Fabrizio; Bugnion S.P.A. Viale Lancetti 17 I-20158 Milano, IT
Priority Data
60/118,52702.02.1999US
98830778.123.12.1998EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD FOR MANUFACTURING A CARCASS FOR TYRES AND A CARCASS OBTAINED THEREBY
(FR) PROCEDE DE FABRICATION D'UNE CARCASSE POUR PNEUS ET CARCASSE AINSI OBTENUE
Abstract
(EN)
One carcass ply (3) is formed by laying down on a toroidal support (11), a first and a second series of sections (13, 14) which are alternated with each other and have side portions (13a, 14a) terminating on opposite sides relative to first primary portions of annular reinforcing structures (4) at the beads. A second ply (3a) is formed in the same manner as the first ply, with a third and a fourth series of elongated sections (15, 16) overlapping second primary portions (4b) of the annular reinforcing structures (4) on opposite sides. The sections forming the first and second carcass plies (3a, 3b) are laid down in respective deposition planes (N, N') parallelly offset on opposite sides relative to a meridian plane (P) of the toroidal support (11), and have mutually crossed side portions (13a, 14a, 15a, 16a) and radially disposed crown portions (13b, 14b, 15b, 16b). Additional portions (24) of the annular structures are applied to the end flaps (20a) of the sections (14) belonging to the fourth series.
(FR)
Un pli (3) de carcasse est formé par application, sur un support toroïdal (11), de première et deuxième séries de parties (13, 14) qui sont placées de manière alternée les unes par rapport aux autres et possèdent des parties latérales (13a, 14a) se terminant sur des côtés opposés par rapport à des premières parties primaires de structures de renforcement (4) annulaires situées au niveau des talons. Un second pli (3a) est formé de la même façon que le premier, des troisième et quatrième séries de parties allongées (15, 16) chevauchant des secondes parties primaires (4b) des structures de renforcement annulaires (4) sur des côtés opposés. Les parties formant les premier et second plis (3a, 3b) de carcasse sont déposées dans des plans de dépôt (N, N') respectifs parallèlement décalés sur des côtés opposés par rapport à un plan médian (P) du support toroïdal (11), et possèdent des parties latérales (13a, 14a, 15a, 16a) mutuellement croisées et des parties en couronne (13b, 14b, 15b, 16b) disposées de manière radiale. Des parties supplémentaires (24) des structures annulaires sont appliquées sur les languettes terminales (20a) des parties (14) appartenant à la quatrième série.
Also published as
TR2001/01839
US09885092
Latest bibliographic data on file with the International Bureau