Class / Patent application number | Description | Number of patent applications / Date published |
152532000 | With cushioning or other special rubber ply layer | 12 |
20080264543 | Heavy Load Vehicle Tire - A tire includes at least two inserts made of a crosslinked elastromeric material applied in a radially external position with respect to the belt structure in proximity of the axially external edges of the belt structure, each insert including an axially inner portion which is interposed between the belt structure and the tread band, and is tapered toward the equatorial plane of the tire; and an axially outer portion which is interposed between the carcass structure and the corresponding sidewall and is tapered toward the rotational axis of the tire, wherein the crosslinked elastomeric material has a dynamic elastic modulus, measured at 70° C., lower than 7 MPa. | 10-30-2008 |
20090133796 | PNEUMATIC TIRE AND A PROCESS TO RETREAD A TIRE - A pneumatic tire and a process to retread a tire is provided. The retreaded tire has a carcass and a crown region, wherein the crown region comprises a belt reinforcement structure located between the carcass and a tread. The retreaded tire further comprises a cementless cushion layer located radially outward of said belt reinforcement structure, and one or more reinforcement plies located radially outward of the cementless cushion layer. The one or more reinforcement plies is formed from a substantially continuous strip of reinforced elastomer which is wound from one side of the crown to the other side in a substantially continuous manner. The reinforcement ply may be formed from spirally winding the strip about the carcass, or one or more reinforcement plies may be formed from winding the strip about the carcass in a zigzag pattern. | 05-28-2009 |
20090139628 | Tire For Heavy Vehicles - A tire having a radial carcass reinforcement comprising a crown reinforcement formed of at least two working crown layers of inextensible reinforcement elements, which are crossed from one ply to the other, forming angles of between 10° and 45° with the circumferential direction, at least one protective layer being radially to the outside of the working crown layers, said crown reinforcement being topped radially by a tread, said tread being joined to two beads by means of two sidewalls. The tire additionally comprises in each shoulder at least one layer of reinforcement elements which are parallel to each other in the additional layer and are oriented circumferentially, the axially inner end of said additional layer being radially adjacent and external to the radially outermost working layer and said axially inner end of the additional layer being radially adjacent and internal to at least part of the protective layer. | 06-04-2009 |
20090277557 | PNEUMATIC TIRE - The present invention provides a pneumatic tire that inhibits any fatigue rupture at an edge portion of a circumferential-direction reinforcing belt layer and also inhibits any separation at an edge portion of crossed belt layers. In the pneumatic tire, at least two crossed belt layers are disposed on the outer circumferential side of a carcass layer in a tread portion. At least one circumferential-direction reinforcing belt layer with a width smaller than those of the crossed belt layers is disposed between the crossed belt layers. Moreover, a stress relaxation layer of a rubber composition having a fixed thickness is disposed between the crossed belt layers while lying adjacent to an edge portion of and outside, in the width directions of, the circumferential-direction reinforcing belt layer. | 11-12-2009 |
20100024947 | TIRE - A tire having a strip layer between breaker and ply using a rubber composition for a strip layer between breaker and ply capable of improving tensile strength at break and elongation at break, capable of also lessening the lowering rate of fracture property after thermal aging, and also being excellent in separation resistance property is provided. | 02-04-2010 |
20100032073 | Noise reducing device, manufacturing method for the noise reducing device, and pneumatic tire having the noise reducing device - Provided are: a noise reduction device with an improved adhesion of objects formed of a porous material and with a reduced processing time; a method of manufacturing the noise reduction device; and a pneumatic tire including the noise reduction device. The noise reduction device of the present invention includes: objects formed of a porous material; a band member for attaching the objects to the inner surface of a tire at two positions spaced at substantially equal intervals in the tire circumferential direction; and locking members formed of a thermoplastic resin. The band member is formed of a thermoplastic resin. Each object is disposed at a predetermined position in the tire circumferential direction, between the band member and the corresponding locking members. The locking members are bonded to the band member through the objects by thermal fusion. | 02-11-2010 |
20100108227 | LIGHT WEIGHT STEEL BELTED TIRE DEVICE - The present invention generally relates to light weight tire devices comprising a plurality of layers of steel belts. The layers are each a predetermined fraction of the footprint width, and the width of each layer can vary from one layer to another. Some embodiments also include a pair of wedge strips disposed between two reinforcing layers. Furthermore, some embodiments can include a split belt, wherein the gap between the split belts is substantially occupied by a gum strip. Additionally, the belt ply cords can be angled according to one or more patterns. | 05-06-2010 |
20100154962 | PNEUMATIC TIRE - A pneumatic tire has a carcass and a belt reinforcing structure. The belt reinforcing structure includes a sine wave belt layer having a first and second axially outer edge, wherein the belt is laid up in a sine wave pattern which extends from a first edge to a second edge. Preferably the belt is laid up in strips of reinforced rubber having two or more cords, wherein the reinforcement cords are made of a high elongation cable. | 06-24-2010 |
20100154963 | PNEUMATIC TIRE - A pneumatic tire is described which includes a tread, a carcass and a belt structure interposed between the carcass and the tread. The belt structure includes a pair of working belts, wherein the angle of the working belts range from about 15 degrees to about 30 degrees, wherein the belt structure further includes a zigzag belt structure located between the working belts. The zigzag belt structure is formed of at least two layers of cords interwoven together from a strip of rubber reinforced with one or more cords, wherein the strip forming the zigzag belt structure is layed up in a first zigzag winding extending from a first lateral belt edge to a second lateral belt edge in a zigzag wavelength having a first amplitude W | 06-24-2010 |
20100163150 | RUBBER COMPOSITION FOR TIRE, TIRE MEMBER, BASE TREAD RUBBER COMPOSITION, BASE TREAD AND TIRE - A rubber composition for a tire includes a rubber component containing at least one of a natural rubber and an epoxidized natural rubber, silica and a natural based wax, wherein the silica is contained in an amount of 10 parts by mass or more based on 100 parts by mass of the rubber component and the natural based wax is contained in an amount of 1.2% by mass or more and 2% by mass or less based on the total mass of the rubber composition for a tire, and to a tread, a side wall, a clinch and a tire using the rubber composition. A rubber composition for a base tread used to form a base tread of a tire, the rubber composition includes a rubber component composed of a diene based rubber, silica contained in an amount 20 parts by mass or more and 70 parts by mass or less based on 100 parts by mass of the rubber component consisting of a diene based rubber and a natural based wax contained in an amount of 2 parts by mass or more and 15 parts by mass or less based on 100 parts by mass of said rubber component composed of the diene based rubber, and to a base tread and a tire obtained by using the rubber composition for a base tread. | 07-01-2010 |
20100181000 | PNEUMATIC TIRE AND METHOD FOR MANUFACTURING THE SAME - A pneumatic tire includes: a carcass; an inner liner disposed at an inner side of the carcass in a tire radial direction; and a tie rubber layer disposed between the carcass and the inner liner, wherein the inner liner and the tie rubber layer are layered with the ends thereof being shifted from each other in a tire circumferential direction, and wherein the inner liner and the tie rubber layer are spliced with the ends of the inner liner in the tire circumferential direction overlapping each other and with the ends of the tie rubber in the tire circumferential direction overlapping each other. | 07-22-2010 |
20150083300 | HEAVY DUTY TIRE - The present invention provides a heavy duty tire, comprising: a carcass; a belt constituted of a circumferential belt including at least one circumferential belt layer and a slant belt including at least one slanted belt layer, each belt layer being made of cords coated with belt coating rubber; and a cushion rubber provided on the outer side in the tire width direction of the belt layers, characterized in that: the cushion rubber has a belt adjacent portion adjacent to the belt and a main body portion adjacent to the belt adjacent portion; and provided that E1′, E2′ and E3′ represent storage modulus values of the belt adjacent portion of the cushion rubber, the main body portion of the cushion rubber, and the belt coating rubber, respectively, E1′, E2′ and E3′ satisfy relationship E2′03-26-2015 | |