Patent application number | Description | Published |
20090008024 | Method and Apparatus for Manufacturing Pneumatic Tyres - A green tyre disposed on a toroidal support is introduced into a vulcanisation mould. The mould is closed through axial approaching of a pair of half shells acting against the sidewalls and the tread band of the tyre. Circumferential sectors set to operate against the tyre tread band are maintained spaced apart from the tread band itself during admission of a working fluid designed to press the tyre against the toroidal support. Subsequently the sectors are centripetally approached to cause penetration of forming ridges movable in through slits into the tread band, concurrently with a step of full moulding and vulcanisation of the tyre carried out through admission of steam under pressure into the tyre itself. | 01-08-2009 |
20090008835 | Method and apparatus for manufacturing pneumatic tyres - A green tyre disposed on a toroidal support is introduced into a vulcanisation mould. The mould is closed through axial approaching of a pair of sidewall plates acting against the sidewalls of the tyre. Circumferential sectors set to operate against the tyre tread band are maintained spaced apart from the tread band itself during admission of a working fluid designed to press the tyre against the toroidal support. Subsequently, the sectors are centripetally approached for penetration into the tread band concurrently with a step of full moulding and vulcanisation of the tyre carried out through admission of steam under pressure into the tyre itself. | 01-08-2009 |
20090101270 | Method and apparatus for the vulcanisation of tyres for vehicle wheels - A vulcanisation apparatus and method for tyres for vehicle wheels includes the steps of: placing a green tyre, arranged on a toroidal support, inside a vulcanisation mold; connecting a supply device of at least one pressurised primary working fluid and a supply device of at least one pressurised secondary working fluid to the vulcanisation mold in a prevulcanisation and molding station; at least partially vulcanising a radially internal portion of the green tyre on the toroidal support; transferring the mold to a vulcanisation station and completing the vulcanisation of the prevulcanised tyre by supplying the at least one pressurised primary working fluid inside the toroidal support. | 04-23-2009 |
20090121395 | Method and appartus for the vulcanisation of tyres for vehicle wheels - A vulcanisation apparatus and method for vehicle wheel tyres, includes at least one prevulcanisation work station to conduct a prevulcanisation of a radially internal portion of the tyre and at least two vulcanisation work stations wherein the remaining part of the vulcanisation of the whole tyre is carried out. | 05-14-2009 |
20090211695 | Method and Apparatus for Manufacturing Tyres - A green tyre is built on a rigid toroidal support externally having a forming surface of a conformation corresponding to an inner conformation of the tyre. The built tyre is removed from the rigid toroidal support and engaged on an expandable toroidal support which includes a bladder. The green tyre engaged on the expandable toroidal support is introduced into a vulcanisation mould and submitted to a vulcanisation cycle. | 08-27-2009 |
20100018632 | PROCESS FOR THE PRODUCTION OF TYRES FOR VEHICLE WHEELS - A process for the production of tyres for vehicle wheels includes the steps of: a) building the tyres on respective toroidal supports assembling a plurality of structural components of each of them according to a predetermined sequence at respective workstations; b) transferring the tyres built on the toroidal supports to a vulcanisation plant; c) molding and partially vulcanising the tyres on the toroidal supports in respective vulcanisation molds associated with the vulcanisation plant; d) removing the partially vulcanised tyres with the respective toroidal supports from the respective vulcanisation molds; and completing the vulcanisation of the tyres outside the vulcanisation molds by means of the heat given to the tyres by the toroidal supports. | 01-28-2010 |
20100032079 | PROCESS AND APPARATUS FOR MANUFACTURING TYRES - A green tyre is either directly formed or, when building is over, engaged on an expandable toroidal support to be then introduced into a vulcanisation mould. The expandable toroidal support includes an expandable bladder and a pair of pressure rings, each including fast and second pressure sectors circumferentially distributed and operating at axially opposite positions on the expandable bladder. Driving devices act on the pressure rings to selectively translate them between a work condition at which the pressure sectors of each pressure ring, circumferentially aligned with each other, extend radially away from the geometric axis, and a rest condition at which the pressure sectors are disposed close to the geometric axis. Kinematic synchronisation members operatively associated with the driving devices mechanically mutually constrain the pressure rings, so as to impose a simultaneous and mutually symmetric movement on them. | 02-11-2010 |
20100032864 | Process for Manufacturing a Pneumatic Tyre, Related Manufacturing Line and Assembling Apparatus - A process and a tyre manufacturing line for producing tyres, wherein the process includes the steps of: i) transferring a first toroidal support to a first assembling apparatus; ii) in the first assembling apparatus, sequentially building on the first toroidal support a first toroidal carcass ply and a first pair of annular reinforcing inserts so as to associate each annular reinforcing insert with a respective radially internal edge of the first toroidal carcass ply; iii) transferring the first toroidal support to a second assembling apparatus; iv) in the second assembling apparatus, sequentially building on the first toroidal support, carrying the first toroidal carcass ply associated with the first pair of annular reinforcing inserts, a second toroidal carcass ply and a second pair of annular reinforcing inserts so as to associate each annular reinforcing insert with a respective radially internal edge of the second toroidal carcass ply. | 02-11-2010 |
20100072670 | PROCESS AND PLANT FOR PRODUCING TYRES FOR VEHICLE WHEELS - A plant and a process for producing tyres for vehicle wheels includes the steps of a) building a tyre on a toroidal support in a building line of a production plant; b) moulding and vulcanizing the assembled tyre in a vulcanization line of the production plant; c) transferring by means of a first transfer device the toroidal support and the relevant moulded and vulcanized tyre to a working station including a removing unit for removing the tyre from the respective toroidal support and a cooling unit for cooling the toroidal support; d) removing the moulded and vulcanized tyre from the relevant toroidal support in the removing unit; e) transferring the toroidal support from the removing unit to the cooling unit by means of a second transfer device different from the first transfer device; and f) cooling the toroidal support in the cooling unit. | 03-25-2010 |
20100084076 | Process and plant for producing tyres for vehicle wheels - A plant and a process for producing tyres for vehicle wheels. The process includes the steps of: a) building green tyres on respective toroidal supports in at least one building line of a tyre production plant; b) transferring a first green tyre and the relevant toroidal support to a moulding and vulcanization unit of at least a first vulcunization line of a vulcanization station of the production plant, the first vulcanization line being provided with a first device for transferring the toroidal support; c) transferring a second green tyre and the relevant toroidal support to a moulding and vulcanization unit of at least a second vulcanization line of the vulcanization station of the production plant, the second vulcanization line being different from the first vulcanization line and being provided with a second transfer device different from the first transfer device; d) moulding and vulcanizing the first green tyre in the moulding and vulcanization unit of the first vulcanization line for a first time interval and the second green tyre in the moulding and vulcanization unit of the second vulcanization line for a second time intercal different from the first time interval, wherein at least one between steps b) and c), is preceded by a step j) of transporting at least one of the green tyres and the relevant toroidal support into a holding unit operatively interposed between the first vulcanization line and the second vulcanization line. | 04-08-2010 |
20100193109 | PROCESS FOR MANUFACTURING A REINFORCING STRUCTURE FOR VEHICLE TYRES - During tyre manufacture, a belt structure is made according to the following steps: preparing strip-like elements, each including longitudinal thread elements disposed parallel to each other and at least partly coated with at least one layer of elastomeric material; applying the strip-like elements in mutually approached relationship along the circumferential extension of a toroidal support, following a predetermined laying trajectory identified on the toroidal support itself so as to form at least one reinforcing layer having a continuous circumferential extension around a geometric rotation axis. During application of each of the strip-like elements, the toroidal support is moved following a predetermined three-dimensional path in order to make the strip-like elements adhere to the outer surface of the toroidal support according to a longitudinal extension line of the strip-like element coincident with the predetermined laying trajectory. | 08-05-2010 |
20100288423 | PROCESS FOR MANUFACTURING TYRES FOR VEHICLE WHEELS - In a process for manufacturing tyres for vehicle wheels, including building, on a toroidal support, a carcass structure including at least one carcass ply associated, at axially opposite end edges thereof, with annular anchoring structures, the step of building the carcass structure includes forming at least one reinforcing structure, operatively associated with the annular anchoring structures through deposition on the toroidal support of at least one reinforcing element at a deposition region defined on the toroidal support. The deposition of the at least one reinforcing element includes the steps of providing at least one reinforcing element having a length determined as a function of the length of the deposition region; deforming the at least one reinforcing element to form an annular reinforcing element having a shape substantially corresponding to the shape of the deposition region; and depositing the annular reinforcing element at the deposition region. An apparatus for carrying out such a process is also described. | 11-18-2010 |
20110168322 | PROCESS AND PLANT FOR BUILDING TYRES FOR VEHICLE WHEELS - A plant for building tyres of at least two different models for vehicle wheels, includes at least a tyre building line, which in turn, includes: a plurality of work stations arranged according to a sequential series, each work station being adapted for building at least one structural component of each tyre and assembling at least one elementary component; at least one handling device for the tyres being processed on the respective forming supports associated to each work station; and at least one transfer device adapted for transferring the tyre being processed on its forming support from any first work station of the sequential series to any other second work station not adjacent thereto of the sequential series, so that the tyre being processed on its forming support only passes in the first and second work stations. | 07-14-2011 |
20110189330 | METHOD AND APPARATUS FOR MANUFACTURING PNEUMATIC TYRES - A green tyre disposed on a toroidal support is introduced into a vulcanisation mould. The mould is closed through axial approaching of a pair of sidewall plates acting against the sidewalls of the tyre. Circumferential sectors set to operate against the tyre tread band are maintained spaced apart from the tread band itself during admission of a working fluid designed to press the tyre against the toroidal support. Subsequently, the sectors are centripetally approached for penetration into the tread band concurrently with a step of full moulding and vulcanisation of the tyre carried out through admission of steam under pressure into the tyre itself. | 08-04-2011 |
20110308685 | TYRE FOR TWO-WHEELED VEHICLE AND PROCESS FOR MANUFACTURING THE SAME - A belt structure for a two-wheeled vehicle made by means of strip-like segments or elements, each including parallel cords embedded in an elastomeric layer, sequentially laid along the circumferential extension of a toroidal support so as to form a reinforcing layer having a continuous circumferential extension around a geometric rotation axis of the toroidal support, wherein each strip-like element is laid in a laying trajectory defining, at each point, a laying angle; at each point of the laying trajectory a laying gap is formed between adjacent strip-like elements; the laying trajectory is formed starting from preselected laying angles on the shoulder and on the crown of the tyre; the laying gap between adjacent strip-like elements varies along at least one length of said laying trajectory between crown and shoulder so as to cause variation of the laying angle and obtain the preselected angles on the shoulder and on the crown. | 12-22-2011 |
20120222820 | PROCESS FOR MANUFACTURING TYRES FOR VEHICLE WHEELS - A process and apparatus for manufacturing tyres for vehicle wheels, includes building, on a toroidal support, a carcass structure including at least one carcass ply associated, at axially opposite end edges thereof, with annular anchoring structures, the building step of the carcass structure includes forming at least one reinforcing structure, operatively associated with the annular anchoring structures through deposition on the toroidal support of at least one reinforcing element along a predetermined curvilinear deposition path. The deposition of the at least one reinforcing element includes the steps of: cutting to size a piece of at least one reinforcing continuous band-like element fed by a feeding device along a predetermined feeding direction, deforming the piece obtained according to the curvature of a deposition part of the deposition path intended to receive the piece, and depositing the deformed piece at the deposition part. | 09-06-2012 |
20120269915 | METHOD AND APPARATUS FOR VULCANISATION OF TYRES FOR VEHICLE WHEELS - A vulcanisation apparatus and method for vehicle wheel tyres, includes at least one prevulcanisation work station to conduct a prevulcanisation of a radially internal portion of the tyre and at least two vulcanisation work stations wherein the remaining part of the vulcanisation of the whole tyre is carried out. | 10-25-2012 |
20130180646 | METHOD AND APPARATUS FOR MANUFACTURING TYRES - A green tyre is built on a rigid toroidal support externally having a forming surface of a conformation corresponding to the inner conformation of the tyre. The built tyre is removed from the rigid toroidal support and engaged on an expandable toroidal support comprising a bladder. The green tyre engaged on the expandable toroidal support is introduced into a vulcanization mould and submitted to a vulcanization cycle. | 07-18-2013 |