| Entries |
| Document | Title | Date |
|---|
| 20080251186 | Assembly of pneumatic tire and rim, and a noise damper used therein - A pneumatic tire and a rim includes a noise damper, fixed to a tire inner surface or a rim inner surface with the upper surface facing a tire inner space, and extending in the tire circumferential direction. The noise damper is made of a sponge having a volume ranging from 0.4 to 20% of the volume of the tire inner space. The noise damper is a laterally long and flat, with a maximum thickness ranging from 5 to 45 mm and a width more than the maximum thickness. The upper surface extends along a wavy curve including a hilltop, valley bottoms on each side of the hilltop and slopes extending down to the respective valley bottoms from the hilltop. Each end of the upper surface is terminated at the valley bottoms or the slopes. A thickness from the upper surface to the bottom surface ranges from 1.0 to 15.0 mm. | 10-16-2008 |
| 20080314505 | METHOD FOR MANUFACTURING TIRE RUBBER MEMBER - A method for manufacturing a tire rubber member, the method comprising: spirally winding a rubber ribbon including a first rubber portion and a second rubber portion, each composed of a rubber having different physical characteristics and joined to each other with a boundary face extending therebetween along a longitudinal direction thereof, along a circumferential direction of a tire so that the second rubber portion is disposed on an outer peripheral side of the first rubber portion, to form the tire rubber member in which a second rubber layer formed with the second rubber portion is built up on the outer periphery of the tire of a first rubber layer formed with the first rubber portion. | 12-25-2008 |
| 20090032176 | METHOD OF MANUFACTURING PNEUMATIC TIRE - Provided is a method of manufacturing a pneumatic tire, which causes no blister to take place during vulcanization molding even in a case where a cylindrical thermoplastic resin film is used as an air-permeation preventing layer while a rubber sheet material laminated onto the thermoplastic resin film has a thickness of 0.5 mm or more. The method includes the steps of: winding an unvalcanized rubber sheet material ( | 02-05-2009 |
| 20090173431 | METHOD FOR PRODUCING PNEUMATIC TIRE - A method for producing a pneumatic tire according to the present invention can use existing facilities without change and does not make the spliced parts of an inner liner easily opened even if the tire is produced with use of an inner liner having a low adhesion. | 07-09-2009 |
| 20090183820 | METHOD OF PRODUCING PNEUMATIC TIRE - Provided is a method of producing a pneumatic tire, which prevents occurrence of blisters caused by trapped air when a thermoplastic resin film is used as an air permeation prevention layer, and particularly, a method suitable for producing a heavy-duty pneumatic tire. The method of producing a pneumatic tire includes: wrapping a thermoplastic resin film | 07-23-2009 |
| 20090194225 | RUBBER-REINFORCED STRUCTURE - A rubber-reinforced structure comprises a composite member comprising a resin member and a rubber member being directly bonded to the resin member without any adhesive, wherein the resin member and the rubber member form a tire. The composite member can be obtained by bringing a resin member into contact with an unvulcanized rubber composition in the following combination, and vulcanizing the unvulcanized rubber: (i) a combination of a rubber composition containing a radical-generating agent, and a resin composition containing a thermoplastic resin having at least two active atoms (a hydrogen atom or a sulfur atom) on the average per molecule, each atom having an orbital interaction energy coefficient S of not less than 0.006; (ii) a combination of a rubber composition containing a sulfur-containing vulcanizing agent or a radical-generating agent, and a resin composition containing a resin selected from a thermoplastic resin and a resin having a crosslinkable group; or (iii) a combination of a styrene-diene-series rubber composition containing a sulfur-containing vulcanizing agent or a rubber composition containing a radical-generating agent, and a resin composition containing a polyphenylene ether-series resin. | 08-06-2009 |
| 20090205770 | Method Of Manufacturing A Pneumatic Tire - The present invention provides a method of manufacturing a pneumatic tire, which can prevent an air pocket from being generated in a vicinity of a spliced portion of a sheet member (B) to be attached to an inner liner, even in the case of using, as the inner liner, a sheet member (A) made of a composition containing a resin component. The method includes a step of laminating a sheet member (A) and a sheet member (B) while being pressed on a making drum. The sheet member (B) is made of a rubber composition, and has two end portions in the circumferential direction overlapped and spliced with each other. In the method, a cut line of each end of the sheet member (B) in the circumferential direction has a vertex in the intermediate point in the width direction of the sheet member (B). Moreover, the cut line is displaced in the opposite direction to the rotational direction of the making drum as extending from the vertex to each of the right and left edges in the width direction. | 08-20-2009 |
| 20090250156 | Plant for Manufacturing Tyres and Manufacturing Method Related Thereto - Within tyre manufacturing, a reinforcing structure of the tyre, such as a zero-degree layer of the belt structure, is made by an apparatus including devices for guiding a continuous elongated element toward a forming drum; devices for applying the elongated element against a laying surface of the drum; and a cutting unit to cut off the continuous elongated element when application has been completed. Once the cutting operation has been carried out, the free end of the continuous elongated element is set to a grip position downstream of the cutting unit through a reciprocating slider and a threading element blocking the continuous elongated element with respect to the slider when the latter moves toward the forming drum. | 10-08-2009 |
| 20090255620 | METHOD OF PRODUCING PNEUMATIC TIRE - Provided is a method of producing a pneumatic tire where occurrence of blisters caused by trapped air is prevented even if a thermoplastic resin film is used as an air permeation prevention layer. The method includes: wrapping a thermoplastic resin film ( | 10-15-2009 |
| 20090272485 | PROCESS FOR MANUFACTURING PNEUMATIC TIRE - Provided is a process of manufacturing a pneumatic tire, which prevents blisters from being raised on a cylindrical thermoplastic resin film due to an air pocket even in a case where the cylindrical thermoplastic resin film is used as an air permeation preventive layer. Provided is the manufacturing process suitable for a heavy-duty pneumatic tire in particular. The process of manufacturing a pneumatic tire includes: covering the making drum | 11-05-2009 |
| 20090294026 | METHOD FOR MANUFACTURING A TIRE AND A TIRE CURING MOLD - A method for manufacturing a tire and a tire curing mold, capable of preventing a failure that the turned-up portion is moved apart from the main portion of the carcass of a green tire on a rigid core, are provided. Each bead-holding ring to hold the bead portion | 12-03-2009 |
| 20090308523 | METHOD FOR MANUFACTURING PNEUMATIC TIRE - The present invention provides a method for manufacturing a pneumatic tire, the method enabling a sound-absorbing member to be easily mounted on the tire with an improved fixation of the sound-absorbing member onto an inner surface of the tire. The method for manufacturing a pneumatic tire of the present invention includes the steps of: forming a green tire including an inner liner layer and a sound-absorbing member, the inner liner layer disposed in an inner surface of the tire and made of any one of a thermoplastic resin and a thermoplastic elastomer composition obtained by dispersing an elastomer in a thermoplastic resin, the sound-absorbing member fixed onto the inner liner layer and made of a porous material; and thereafter curing the green tire. | 12-17-2009 |
| 20100043949 | METHOD OF BUILDING CARCASS BAND AND STITCHER APPARATUS - The invention enables to pressure-bond a carcass ply sheet pasted onto a rubber laminating member wound around a periphery of a building drum firmly along a recessed and projected shape of the rubber laminating member without producing a deformation or a warp of a carcass cord, by using a stitcher apparatus ( | 02-25-2010 |
| 20100043950 | 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. | 02-25-2010 |
| 20100043951 | PNEUMATIC TIRE - There is provided a method of producing a pneumatic tire having a hoop-and-loop fastener on the inner surface of the tire in which productivity can be improved and deterioration of uniformity can be avoided. | 02-25-2010 |
| 20100096070 | PROCESS AND APPARATUS FOR BUILDING TYRES - Two auxiliary support members are operatively engaged with a building drum, in axially approached relationship with respective halves of the drum itself, each auxiliary member having a circumferential rest surface extending in the continuation of an outer circumferential surface of the building drum itself. Applied around the outer circumferential surface of the building drum is at least one carcass ply having axially opposite end flaps each lying on the circumferential rest surface of the respective auxiliary support member. A pair of auxiliary shaping members engaged with the building drum in place of the auxiliary support members, each act against a circumferential abutment edge carried by the building drum, to enable the carcass ply to be shaped into a toroidal configuration concurrently with mutual approaching of the halves of the building drum. | 04-22-2010 |
| 20100101704 | PROCESS AND APPARATRUS FOR MANUFACTURING TYRES FOR VEHICLE WHEELS - A process and an apparatus for manufacturing tyres for vehicle wheels, includes the step of building on a substantially cylindrical forming support a carcass structure including at least one carcass ply associated, at axially opposite end edges thereof, with respective annular anchoring structures. The step of building the carcass structure further includes the step of associating, at at least one end edge of said at least one carcass ply, at least one reinforcing structure including a predetermined number of reinforcing elements having a predetermined width and same length. The reinforcing elements are preferably obtained by cutting to size, with a predetermined cutting angle, a continuous band-like reinforcing element having a predetermined width. The reinforcing elements are arranged on the end edge of the carcass ply along a deposition path at a distance from one another having a value between 0 and a predetermined value. | 04-29-2010 |
| 20100175813 | TYRE CARCASS FORMING METHOD AND DRUM - To form a tyre carcass, a body ply is wound about a drum, which has two half-drums movable axially in opposite directions to and from a centre plane of the drum, and having respective turn-up bladders, on each of which is laid a respective annular lateral portion of the body ply; each annular lateral portion being turned up about a respective bead bundle and onto a sidewall of a toroidal-shaped annular central portion of the body ply by inflating the relative turn-up bladder and controlling distension of a given annular portion of the turn-up bladder so that, when inflation is completed, the annular portion assumes a given final position, in which an intermediate portion of the turn-up bladder rolls outwards along the relative sidewall of the annular central portion of the body ply. | 07-15-2010 |
| 20100186875 | ASSEMBLY AND A METHOD FOR EXTRUDING A TIRE COMPONENT - In order to facilitate the assembly of a tire component like an Off the Road tire shoulder wedge, it is proposed to extrude this component with a high tack compound coating at its periphery by using a dual extruder which otherwise can extrude the tire component with a first high tack compound coating on one side, combined with an assembly for the extruder comprising a splice bar, a holder and a die which are designed to provide a channel deriving and guiding a portion of the high tack compound of the extruder to the stream of compounds before extrusion through the die, on a side opposite to the first coating, thereby providing a coating at almost the whole periphery of the component. | 07-29-2010 |
| 20100186876 | METHOD OF MANUFACTURING PNEUMATIC TIRE - A method of manufacturing a tire | 07-29-2010 |
| 20100200153 | Molding Method for a Pneumatic Tire - A pneumatic tire provided with a pair of bead cores, a troidal-shaped carcass surrounding said bead cores, a tread rubber, a carcass, a plurality of belt layers reinforced by steel cords, wherein in at least one of said belt layers, the maximum value of deviation of an angle θc of said steel cords is not greater than 3 degrees with respect to the angle made by said steel cords at the center in the tire width direction and the tire circumferential direction. | 08-12-2010 |
| 20100212812 | METHOD AND DEVICE FOR PRODUCING GREEN TIRE - The present invention aims at improving balance and uniformity of a tire, with simplifying facilities, reducing space for the facilities and suppressing shape flows and generation of air bubbles. An extruder is provided for supplying rubber ribbon immediately after extrusion to a second molding drum, so that the rubber ribbon is spirally wound around the second molding drum plural times to structure a portion of tread (a cap layer), whereby the rubber ribbon which is relatively hot and soft is wound around the second molding drum. As a result, the rubber ribbon easily deforms compliant to the second molding drum. Further, no joint portion of starting and terminal ends as is observed in the prior art exists, whereby thickness of the tread is even in the circumferential direction. | 08-26-2010 |
| 20100236695 | TIRE TREAD BLOCK COMPOSITION - The invention concerns tires having a composite tread block which comprises a cured elastomer and from 0.1 to 10 parts per hundred parts by weight of the elastomer of fibers characterized as having a tenacity of at least 6 grams per dtex and a modulus of at least 200 grams per dtex. A major portion of said fibers are oriented in a direction such that noise arising from tire tread contacting the road surface is reduced. | 09-23-2010 |
| 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 |
| 20100314030 | MANUFACTURING METHOD FOR PNEUMATIC TIRE - Provided is a manufacturing method for a pneumatic tire including the steps of: shaping a cylindrical film formed of a thermoplastic resin or a thermoplastic elastomer composite in which a thermoplastic resin is blended with an elastomer, folding the film into a sheet shape, laminating rubber layers on both surfaces of the folded film, opening the laminate of the film and the rubber layers into a cylindrical shape, fitting the laminate thus opened on a tire making drum, forming the tire pneumatic tire including the film as an air permeation preventing layer, and curing the uncured tire. In the method, when the rubber layers are laminated on the both surfaces of the folded film, positions of the rubber layers in a width direction are displaced from each other such that an end portion of one of the rubber layers is arranged to protrude from an end portion of the film and an end portion of the other one of the rubber layer is arranged on an inner side, in the width direction, of the protruding end portion of the one of the rubber layers, and the protruding end portion of the one of the rubber layers is caused to cover the end portion of the other one of the rubber layers in a state where the laminate is fitted on the tire making drum. By employing the manufacturing method for the pneumatic tire, troubles due to a splice portion of the rubber layers can be reduced. | 12-16-2010 |
| 20110030880 | METHOD FOR MANUFACTURING UNVULCANIZED TIRE AND APPARATUS FOR MANUFACTURING THE TIRE - When a stitching roll is allowed to act on a tread rubber member to attach the tread rubber member to an unvulcanized tire, lateral displacement of the tread rubber member is prevented. In a method for manufacturing unvulcanized tires by attaching a tread rubber composite ( | 02-10-2011 |
| 20110120625 | PROCESS AND APPARATUS FOR MANUFACTURING TYRES FOR VEHICLE WHEELS - A process for manufacturing a tyre for vehicle wheels, comprises the step of building, on a forming support ( | 05-26-2011 |
| 20110146887 | TIRE PLY AND METHOD OF MANUFACTURE - A method of forming a layer of tire ply is disclosed. A first sheet of ply is provided st lateral end, and having a plurality of functional reinforcement cords and two or more dummy spacer cords at the first lateral end. A second sheet of ply is provided having a second lateral end to be joined together with the first lateral end of the first sheet of ply. The second sheet of ply has a plurality of functional reinforcement cords and two or more dummy spacer cords at the second lateral end. The first and second lateral ends are overlapped so that the dummy cord of one of the ends is located adjacent a functional cord of the second of the ends. | 06-23-2011 |
| 20110265937 | METHOD OF MANUFACTURING UNVULCANIZED TIRE - Provided is a method of manufacturing an unvulcanized tire, with which formation of air pockets is reduced in adhering a cylindrical film member and an adhesive sheet member to each other by using a forming drum having an expansion/contraction mechanism. In the method, a forming device having a forming drum ( | 11-03-2011 |
| 20110308704 | METHOD FOR MAKING PNEUMATIC TIRE WITH FOAM NOISE DAMPER - The present invention is directed to a method for making a tire having a foam noise damper, comprising the steps of: disposing a foam noise damper onto a virgin surface of a green tire innerliner; disposing a barrier layer over the foam noise damper, the foam noise damper being located between the virgin surface of the green tire innerliner and the barrier layer; incorporating the green tire innerliner into a green tire; curing the green tire; and removing the barrier layer to reveal the foam noise damper. | 12-22-2011 |
| 20110308705 | METHOD FOR MAKING PNEUMATIC TIRE WITH FOAM NOISE DAMPER - The present invention is directed to a method for making a tire having a foam noise damper, comprising the steps of: pressing a barrier layer onto an exposed virgin surface of a green tire innerliner to adhere the barrier layer to the virgin surface and thereby form a protected green innerliner; curing the protected green innerliner; removing the barrier layer to reveal the virgin surface; and securing a foam noise damper to the virgin surface. | 12-22-2011 |
| 20110308706 | METHOD FOR MAKING PNEUMATIC TIRE WITH FOAM NOISE DAMPER - The present invention is directed to a method for making a tire having a foam noise damper, comprising the steps of:
| 12-22-2011 |
| 20120118484 | SEGMENTED TIRE CORE STRUCTURE AND METHOD OF MAKING A TIRE - A segmented tire core structure may include a segmented tire core and a segmented tire core removal system. The segmented tire core removal system may include a first wheel that is rotatable to cause a first section of the segmented tire core to move away from an inner surface of the cured tire and a second wheel that is rotatable to cause a second section of the segmented tire core to move away from an inner surface of the cured tire. | 05-17-2012 |
| 20120125524 | METHOD OF MANUFACTURING A SELF-INFLATING TIRE - A method of constructing a self-inflating tire assembly includes molding in an air tube-receiving groove within a green tire carcass wall, the groove having an access opening, primary internal groove chamber and a secondary expansion groove chamber adjacent to and communicating with the internal groove chamber. A groove partial passageway is molded with the groove at a prescribed groove outlet location and extends from the groove partially through the tire carcass wall toward the tire cavity. A tire carcass wall barrier of reduced section between the partial passageway and the tire cavity is removed in a post-cure operation to create a through-bore from the groove to the tire cavity. A pump assembly inserts into the tube-receiving groove in a post-cure procedure with an outlet passage tube from a pump assembly outlet device extended through the through-bore to the tire cavity. | 05-24-2012 |
| 20120125525 | METHOD FOR MAKING PNEUMATIC TIRE WITH FOAM NOISE DAMPER - The present invention is directed to a method for making a tire having a foam noise damper, comprising the steps of: pressing a barrier layer onto an exposed virgin surface of a green tire innerliner to adhere the barrier layer to the virgin surface and thereby form a protected green innerliner; exposing the protected green innerliner to the release agent; curing the protected green innerliner; removing the barrier layer to reveal the virgin surface substantially free of the release agent; applying a foamable liquid to the virgin surface; and foaming the foamable liquid to form a foam noise damper secured to the virgin surface. | 05-24-2012 |
| 20120168060 | TIRE MANDREL - A mandrel for building a tire is described having a torus shape. The mandrel is formed of a first annular layer for forming the outer tread surface of a tire. The first annular layer of material has outer ends joined to a second and third layer of material for forming the sidewalls. The first annular layer is formed of a woven material reinforced with circumferential cords, and the second and third layer of material is formed of a woven material having reinforcement cords arranged in concentric circles. The second and third layer of material has a radially inner end received in a clamp of a mandrel support device which includes means for inflating the tire mandrel. | 07-05-2012 |
| 20120180937 | FUNCTIONALIZED POLYMERS AND TIRES THEREFROM - A method for preparing a functionalized polymer, the method comprising providing a reactive polymer, where the reactive polymer includes an oxygen anion, a sulfur anion, or a nitrogen anion, reacting the reactive polymer with carbon disulfide to form a polymer including a dithio carboxyl group, and reacting the polymer including the dithio carboxyl group with a blocking agent. | 07-19-2012 |
| 20120186727 | METHOD OF PRODUCING RETREADED TIRE - There is provided a method of producing a retreaded tire with a desired tread pattern, capable of achieving desired performance. The method of producing a retreaded tire comprises: winding a precured tread on a crown portion of a base tire via unvulcanized rubber; connecting end portions of the precured tread in a circumferential direction with each other via unvulcanized rubber; inserting a stuffing member into a groove provided in the connected portion, the stuffing member being engaged with a shape of the groove; overlaying a vulcanization envelope covering at least the precured tread to be vulcanized; and adhering the precured tread to the base tire by vulcanization. | 07-26-2012 |
| 20120227891 | PRODUCTION METHOD OF HEAVY DUTY PNEUMATIC TIRE - A production method of a heavy duty pneumatic tire, capable of suppressing a wavy phenomenon without increasing the gauge thickness of an insulation, comprising a carcass part formation step of pasting a carcass ply via an insulation to the outside of an inner liner to form a carcass part, and a vulcanization step of vulcanizing a green tire, wherein the carcass part formation step comprises an insulation molding step of molding the insulation and an electron beam irradiation step of irradiating the insulation with an electron beam having an irradiation voltage of 200 to 600 kV and an irradiation dose of 50 to 200 kGY. | 09-13-2012 |
| 20120312454 | ADHESIVE COMPOSITION FOR TYRES, METHOD FOR PRODUCING THIS COMPOSITION AND METHOD FOR GLUEING TYRES USING THIS COMPOSITION - This invention provides a natural solvent-based adhesive composition for tires; a mix to prepare adhesive compositions; a preactivation compound for tires; processes to obtain said compositions or mix; or the use of said compounds in bonding tires; and bonding and preactivation processes for tires. The objects of the invention provide industrial solutions that, while introducing a considerable reduction in environmental impact in their preparation and use, provide better health conditions for the professionals who work in the tire bonding industry. | 12-13-2012 |
| 20130042962 | PNEUMATIC TIRE AND PROCESS FOR MANUFACTURING THE SAME - A pneumatic tire and process for manufacturing the same enable, in the use of a film of a thermoplastic resin or a thermoplastic elastomer composition obtained by blending an elastomer in a thermoplastic resin as an air permeation preventive layer, formation of the air permeation preventive layer excelling in gas barrier performance, and molding of the tire through a simple molding operation without generating any unnecessary scraps. For the pneumatic tire, a cylindrical molded article composed of a film of a thermoplastic resin or thermoplastic elastomer composition obtained by blending an elastomer in a thermoplastic resin is crushed into a sheet-like laminate; and the laminate is used as the air permeation preventive layer. In the manufacturing operation, the sheet-like laminate is wrapped around a making drum so that an unvulcanized tire having the sheet-like laminate as an air permeation preventive layer is molded, and the unvulcanized tire is vulcanized. | 02-21-2013 |
| 20130075017 | METHOD FOR FORMING STRATIFIED RUBBER ARTICLE - A method and apparatus for applying a blended rubber composition directly onto a tire building drum or core is described. The method includes the steps of extruding a first rubber compound through a main extruder and a main gear pump. A second rubber compound is extruded through a second extruder and into a second gear pump. The output from the second gear pump is fed into the main extruder. The ratio of the first compound to the second compound is varied by adjusting the speed of the main gear pump and the speed of the second gear pump. A continuous strip of rubber formed of said first compound and said second compound is layed directly onto a tire building machine to form a first layer of rubber having a first blend ratio. The speed of the main gear pump and the second gear pump is adjusted to obtain a second blend ratio of said first compound to said second compound, and then a strip of rubber formed of said second blend ratio is applied to the tire building drum or core. | 03-28-2013 |
| 20130087267 | METHOD FOR MAKING PNEUMATIC TIRE WITH FOAM NOISE DAMPER - The present invention is directed to a method for making a tire having a foam noise damper, comprising the steps of: pressing a barrier layer onto an exposed virgin surface of a green tire innerliner to adhere the barrier layer to the virgin surface and thereby form a protected green innerliner; curing the protected green innerliner; removing the barrier layer to reveal the virgin surface; and securing a foam noise damper to the virgin surface. | 04-11-2013 |
| 20130133813 | PNEUMATIC TIRE AND METHOD FOR MANUFACTURING THE SAME - A pneumatic tire includes: a plurality of rubber sheet layers being layered in a tire radial direction, the rubber sheet layers including an first layer and a second layer, wherein each of the first layer and the second layer includes a plurality of divided sheets being spliced at spliced positions dividing a circumferential length in a tire circumferential direction by lengths having integer values, a total of the lengths being substantially corresponding to a nominal diameter of the pneumatic tire, and wherein the spliced positions of the first layer and the spliced positions of the second layer are set to be shifted in the tire circumferential direction to be unoverlapped with one another. | 05-30-2013 |
| 20130146212 | Method for Joining a Layer of Material in Order to Produce a Raw Tire Blank - A method for jointing an external layer (12) of material to a base layer (14) to produce a green tire, the green tire having an axis of revolution (X), the method comprising a step of applying the outer layer (12) to the base layer (14), followed by a step of jointing the outer layer (12) to the base layer (14). The jointing step is done using a pressing element (18) surrounding the outer layer (12) and elastically deformable between a configuration called the enlarged configuration and a configuration called the outer-layer (12) pressing configuration, in which the pressing element (18) applies a radial pressure to the outer layer, the jointing step comprising the following steps: the passage of the pressing element (18) from the enlarged configuration to the layer-pressing configuration, the movement of the pressing element (18) in the pressing configuration, in the axial direction (X) of the green tire. | 06-13-2013 |
| 20130160931 | METHOD OF PROVIDING AN AIR PASSAGE IN A TIRE - The present invention is directed to a method of constructing a tire, comprising: | 06-27-2013 |
| 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 |
| 20130192746 | Processes for Making Silane, Hydrophobated Silica, Silica Masterbatch and Rubber Products - The present invention provides a process for making silica-filled rubber masterbatch using silica hydrophobated with a trimethoxy silane coupling agent that is soluble in an alcohol-water solution containing at least about 70 wt % water. One embodiment uses a mixture of trimethoxy silanes, one or more of which react with rubber to bond the silica to the rubber, and one or more of which do not react with rubber, but do hydrophobate the silica. Hydrophobated silica is mixed with latex polymer and incorporated into rubber during coagulation of the latex, which is preferably coagulated with calcium chloride. The present invention further provides a process for making the trimethoxy silane coupling agents. Preferred trimethoxy silane coupling agents include bis-(3-trimethoxysilylpropyl)-disulfide and bis-(3-trimethoxysilylpropyl)-tetrasulfide. Rubber products, particularly tires, compounded with the inventive silica masterbatch can be processed for a long time before scorching because the silica masterbatch provides a long scorch time. | 08-01-2013 |
| 20130213559 | SYSTEM AND METHOD FOR DECENTRALIZED MANUFACTURE OF NEW TIRES ENABLING IMPROVED PERFORMANCE CHARACTERISTICS - Systems and methods for decentralized tire manufacturing permit the pre-selection of properties of a new casing by individually selecting properties of the casing. The components and raw materials are pre-selected to provide improved and individualized performance characteristics when combined with separately-manufactured new cured tire treads. The new cured treads are manufactured separately in such a manner that pre-selected processing and raw materials may be used to selectively improve performance characteristics. The pre-selected materials and processing used in the separate manufacture of the cured treads from the casing are chosen so as to provide an improved final result that is coordinated through the pre-selections. In this manner, a final tread-casing combination can be made in such a way as to improve one or more performance properties of a final tire. | 08-22-2013 |
| 20130220518 | PNEUMATIC TIRE AND MANUFACTURING METHOD THEREFOR - Provided is a pneumatic tire and a manufacturing method therefor which allow a reduction in a cavity resonance sound without complicated manufacturing steps. A pneumatic tire of the present invention includes: a pair of bead portions; a carcass layer bridged between the pair of bead portions; and an inner liner layer disposed at a tire inner surface side of the carcass layer, the inner liner layer being made of a thermoplastic resin or a thermoplastic elastomer composition obtained by blending a thermoplastic resin with an elastomer. The inner liner layer has a laminated structure including multiple film layers having different melting points of the thermoplastic resin from each other. The film layer having the lowest melting point of the thermoplastic resin is foamed to form multiple convex portions in the tire inner surface. | 08-29-2013 |
| 20130220519 | METHOD FOR MANUFACTURING PNEUMATIC TIRE - A method for manufacturing a pneumatic tire including: (a) an assembly step of bonding the inner liner and an unvulcanized rubber sheet with end portions thereof in a width direction being displaced from each other in the range of 50 mm to 500 mm in the width direction to manufacture a laminate; (b) a cutting step of cutting the laminate to have a constant length corresponding to a width of a drum to manufacture a cut sheet; and (c) a joining step of winding the cut sheet on entire circumference of the drum such that a cut surface thereof extends in a circumferential direction of the drum and the inner liner is disposed on an inner surface side, and joining the end portions of the inner liner and joining the end portions of the unvulcanized rubber sheet. | 08-29-2013 |
| 20130220520 | PROCESS AND APPARATUS FOR MANUFACTURING TYRES FOR VEHICLE WHEELS - A process for manufacturing tyres for vehicle wheels includes associating at least one reinforcing structure with at least one surface portion of at least one tyre component laid on a forming support, wherein associating the at least one reinforcing structure includes bringing, through a handling and deposition member, at least one reinforcing element to the forming support and depositing, through said handling and deposition member, the reinforcing element on a respective deposition part defined on a surface portion of the component. The depositing includes gradually laying the reinforcing element on the deposition part following the profile of the deposition part in a circumferential direction. | 08-29-2013 |
| 20130264004 | TIRE CASING AND METHOD OF PRODUCING TIRE - The present invention is a method for producing a tire casing by vulcanizing a casing portion comprising a belt portion composed of multiple belt layers, a side portion and a bead portion, and the method includes at least one method selected from the following (a) and (b). The invention also provides a production method for a tire casing and a tire having improved low-heat-generation property and durability. Method (a) in which a rubber composition containing carbon black having a nitrogen adsorption specific surface area of from 38 to 99 m | 10-10-2013 |
| 20130333826 | FORMING METHOD OF ANNULAR RUBBER MEMBER AND FORMING EQUIPMENT OF ANNULAR RUBBER MEMBER - A forming method of an annular rubber member comprises the step of forming a laminated body in which a plurality of layers overlap in a thickness direction, by continuously extruding a sheet-like rubber via a mouth piece provided in a leading end side of an extruder, and winding the extruded sheet-like rubber around a rotation support body. The layers having different widths are overlapped by changing an opening width of the mouth piece, at a time of changing from a stage of forming the layer which is positioned relatively at an inner peripheral side, to a stage of forming the layer which is positioned relatively at an outer peripheral side. | 12-19-2013 |
| 20140000790 | RUN-FLAT PNEUMATIC TIRE ASSEMBLY AND METHOD | 01-02-2014 |
| 20140027042 | METHOD FOR MANUFACTURING PNEUMATIC TIRE - Provided is a method for manufacturing a pneumatic tire, including the steps of preparing a polymer layer stack formed of a first layer made of a styrene-isobutylene-styrene triblock copolymer and having a thickness of 0.05 mm to 0.6 mm and a second layer made of an epoxidized styrene-butadiene-styrene triblock copolymer and having a thickness of 0.01 mm to 0.3 mm, molding a raw tire with the polymer layer stack bonded to the inner side of the tire as an inner liner, arranging the raw tire in a mold and vulcanizing the tire under pressure from a bladder, and cooling a vulcanized tire at 50° C. to 120° C. for 10 seconds to 300 seconds. | 01-30-2014 |
| 20140034221 | PROCESS AND APPARATUS FOR MANUFACTURING PNEUMATIC TYRES FOR VEHICLE WHEELS - In a process for building tyres for vehicle wheels, a carcass sleeve is arranged on a shaping drum including two half-drums and two supports. Each support is operatively associated with one of the half-drums and carries a plurality of turning-up levers having free ends positioned close to the respective half-drum. Two annular anchoring structures are disposed around the carcass sleeve and each of the two supports is locked to the respective half-drum by interposing only stiff mechanical elements in mutual contact between the support and the half-drum. The carcass sleeve is shaped in a toroidal conformation, by setting a threaded shaft in rotation and moving the half-drums dose to each other. Subsequently, each of the two supports is unlocked from the respective half-drum and the threaded shaft is set in rotation to move each support close to the respective half-drum and lift up the free ends of the turning-up levers until the end flaps of the carcass sleeve are turned up around the annular anchoring structures. | 02-06-2014 |
| 20140083598 | Processes for Making Silane, Hydrophobated Silica, Silica Masterbatch and Rubber Products - The present invention provides a process for making silica-filled rubber masterbatch using silica hydrophobated with a trimethoxy silane coupling agent that is soluble in an alcohol-water solution containing at least about 70 wt % water. One embodiment uses a mixture of trimethoxy silanes, one or more of which react with rubber to bond the silica to the rubber, and one or more of which do not react with rubber, but do hydrophobate the silica. Hydrophobated silica is mixed with latex polymer and incorporated into rubber during coagulation of the latex, which is preferably coagulated with calcium chloride. The present invention further provides a process for making the trimethoxy silane coupling agents. Preferred trimethoxy silane coupling agents include bis-(3-trimethoxysilylpropyl)-disulfide and bis-(3-trimethoxysilylpropyl)-tetrasulfide. Rubber products, particularly tires, compounded with the inventive silica masterbatch can be processed for a long time before scorching because the silica masterbatch provides a long scorch time. | 03-27-2014 |
| 20140130960 | PUNCTURE SEALANT LAMINATE - A puncture sealant laminate for prevention of a flat tire may include three layers of sealant material separated by two layers of non-sealant material. The two layers of non-sealant material may prevent the three layers of sealant material from contacting each other and they may have first and second ends that attach to rubber in the tire that is not part of the puncture sealant laminate. | 05-15-2014 |
| 20140166190 | Method For Manufacturing Pneumatic Tire - A method for manufacturing a pneumatic tire may include lap-splicing end parts of a laminate sheet in which a sheet obtained from a thermoplastic resin or a thermoplastic resin composition of a thermoplastic resin blended with an elastomer is laminated with a rubber that undergoes vulcanizing adhesion with the thermoplastic resin or the thermoplastic resin composition. After the sheet obtained from the thermoplastic resin or the thermoplastic resin composition is cut into lengths to be supplied for lap-splicing, and at a stage before tire vulcanization molding, distal end parts of the sheet obtained from the thermoplastic resin or the thermoplastic resin composition are sharpened with a thermal treatment. | 06-19-2014 |
| 20140174639 | TYRE HAVING A BUILT-IN SELF-SEALING LAYER - A method for protecting a tyre against punctures includes: providing a self-sealing layer; providing an anti-tack layer that includes particles having a shape factor higher than 5; forming a tyre such that the self-sealing layer is built into the tyre during manufacture of the tyre; and applying the anti-tack layer a radially internal surface of the self-sealing layer. | 06-26-2014 |
| 20140190618 | ASSEMBLY AND A METHOD OF MANUFACTURING A GREEN TIRE AND/OR AN UNCURED SPRING - The invention relates to an assembly and a method for manufacturing a green tyre and/or a green air spring. The device comprises a template having a shaping surface ( | 07-10-2014 |
| 20140190619 | STRIP, METHOD FOR MANUFACTURING THE SAME, AND METHOD FOR MANUFACTURING PNEUMATIC TIRE - The present invention is a strip of a thermoplastic elastomer composition to be wound spirally on a cylindrical drum to form an inner liner for a tire. The strip is composed of a layer stack of a first layer made of a thermoplastic elastomer composition containing 0.1 part by mass to 50 parts by mass of an organic derivative of clay mineral relative to 100 parts by mass of a styrene-isobutylene-styrene triblock copolymer, and a second layer made of a thermoplastic elastomer composition containing at least one of a styrene-isoprene-styrene triblock copolymer and a styrene-isobutylene diblock copolymer. The strip has a strip main body with a thickness of 0.05 mm to 1.0 mm and ear portions with a thickness thinner than the thickness of the strip main body and a width of 0.5 mm to 5.0 mm disposed on opposite sides thereof. | 07-10-2014 |
| 20140283975 | PNEUMATIC TIRE - A pneumatic tire using, as an inner liner layer, a thermoplastic elastomer comprising a thermoplastic resin matrix, in which a rubber component is dispersed a surface of the inner liner layer is covered with a protective layer, whereby a weathering resistance, damage resistance and fatigue resistance of the film liner of the inner liner layer at the time of tire storage are improved. | 09-25-2014 |
| 20150047770 | TIRE-FORMING MACHINE CONNECTOR APPARATUS AND CONNECTOR HANDLING METHOD THEREFOR - The joint device for a tire forming machine comprises a joint device connection frame, composite part laminating device, and cord fabric stitching device, wherein the joint device connection frame axially slides along a portal frame through a connection frame drive device, and is located above the vertical direction of a tire body drum; the composite part laminating device is carried on a joint device connection frame through a composite part frame body; the composite part laminating device comprises an axial laminating drive device and a vertical laminating drive device for controlling and driving a compression roller component located on a composite workstation on the tire body drum; the cord fabric stitching device is carried on the joint device connection frame through a main stitching frame; the cord fabric stitching device comprises an axial stitching drive device and a vertical stitching drive device for controlling and driving a stitching wheel component located on a stitching workstation on the tire body drum. | 02-19-2015 |
| 20150321433 | Method of Manufacturing Pneumatic Tire - The present technology provides a method of manufacturing a pneumatic tire. The method of manufacturing a pneumatic tire uses a laminated sheet having a predetermined length and an inner liner layer formed from the laminated sheet through a step of cure-molding the tire with end portions of the laminated sheet lap-spliced. In the method, when at least the sheet made of thermoplastic resin or a thermoplastic resin composition obtained by blending the thermoplastic resin and the elastomer is cut into the predetermined length, the cutting is performed by using an edge tool having a non-sharp edge under a temperature condition not lower than 60° C. and not higher than a melting point of the thermoplastic resin. | 11-12-2015 |
| 20150328853 | METHOD AND DEVICE FOR MANUFACTURING A GREEN TIRE - Method for manufacturing a green tire by winding a carcass reinforcement ply onto a tire-building drum on which a number of profiled elements are axially spaced apart one from one another and have a given thickness of which the meridian line has a curved profile are laid, wherein:
| 11-19-2015 |
| 20150336342 | Method for Producing Tire-Curing Bladder - A method for forming and curing an uncured tire-curing bladder with a bladder-curing bladder includes providing an uncured tire-curing bladder having an inner and outer surface on or in a recess of an outer-surface curing mold; inflating the bladder-curing bladder into the recess and exerting pressure on the inner surface of the uncured tire-curing bladder; and curing the uncured tire-curing bladder by providing heat, pressure, or both to the inner surface and the outer surface of the tire-curing bladder to form a cured tire-curing bladder. A thin tire-curing bladder and a curing apparatus are also provided. | 11-26-2015 |
| 20160075096 | METHOD FOR AFFIXING RUBBER STRIP, METHOD FOR MANUFACTURING PNEUMATIC TIRE USING SAME, AND AFFIXING DEVICE - Trough use of an applicator, a rubber strip is supplied to the drum side surface in a conveyance direction at a right angle to a reference line extending over the drum side surface from the shaft center of the drum outward in the radial direction. The supplied rubber strip is pressed against and affixed to the drum side surface using an affixing roller. The affixing roller is supported so as to be able to rotate about a roller shaft center parallel to the reference line. The roller shaft center is disposed at a distance (L) downstream from the reference line in the drum rotation direction. | 03-17-2016 |
| 20190143623 | METHOD OF TREATING TYRE REINFORCING PLY CORDS | 05-16-2019 |
