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1. WO1999004957 - IMPROVEMENTS IN TYRE MANUFACTURE

Publication Number WO/1999/004957
Publication Date 04.02.1999
International Application No. PCT/GB1998/002199
International Filing Date 22.07.1998
IPC
B29D 30/16 2006.1
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
16Applying the layers; Guiding or stretching the layers during application
CPC
B29D 30/1607
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
1607by feeding a sheet perpendicular to the core axis and joining the ends to form an annular element
B29L 2030/004
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
2030Pneumatic or solid tyres or parts thereof
003Plies; Breakers
004Carcasses
Applicants
  • HOLROYD ASSOCIATES LIMITED [GB]/[GB] (AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BY, CA, CF, CG, CH, CI, CM, CN, CU, CY, CZ, DE, DK, EE, ES, FI, FR, GA, GB, GE, GH, GM, GN, GR, GW, HR, HU, ID, IE, IL, IS, IT, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MC, MD, MG, MK, ML, MN, MR, MW, MX, NE, NL, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, SN, SZ, TD, TG, TJ, TM, TR, TT, UA, UG, UZ, VN, YU, ZW)
  • HOLROYD, Eric [GB]/[GB] (UsOnly)
  • HOLROYD, Colin [GB]/[GB] (UsOnly)
Inventors
  • HOLROYD, Eric
  • HOLROYD, Colin
Agents
  • SPOOR, Brian
Priority Data
9715449.623.07.1997GB
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) IMPROVEMENTS IN TYRE MANUFACTURE
(FR) AMELIORATIONS DANS LA FABRICATION DE PNEUMATIQUES
Abstract
(EN) Apparatus for use in tyre manufacture comprises a circular support (26) defining a peripheral surface for supporting a tyre carcass during manufacture. The peripheral surface corresponds substantially to the intended final shape of a tyre to be constructed. Tensioning means (42) is provided and which is suitable for receiving ply material (40), for applying a different tension to a central portion of the material (40) than is applied to side portions thereof so that the material (40) in use assumes the profile of the peripheral surface, and presenting the ply material (40) to the peripheral surface.
(FR) La présente invention concerne un appareil utilisé pour la fabrication de pneus comprenant un support circulaire (26) qui définit une surface circulaire destinée à supporter une carcasse de pneumatique pendant la fabrication. La surface circulaire correspond sensiblement à la surface finale attendue pour le pneumatique à fabriquer. Un moyen de mise en tension (42) est prévu et conçu pour recevoir un matériau en nappe (40), en vue d'appliquer sur la partie centrale une tension différente de celle appliquée sur les parties latérales du matériau (40) de sorte que ledit matériau utilisé adopte le profil de la surface circulaire et en vue de présenter le matériau (40) en nappe sur la surface circulaire.
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