Class / Patent application number | Description | Number of patent applications / Date published |
152209190 | Protrusion from bottom and spaced from both walls (e.g., pebble ejector, etc.) | 15 |
20090301622 | Undercut stone bumper structure for vehicle tire groove | 12-10-2009 |
20100139827 | PNEUMATIC TIRE - The object of the present invention is to provide a pneumatic tire with an operation life elongated by a countermeasure for stone trapping. Projections | 06-10-2010 |
20110011505 | PNEUMATIC TIRE - A pneumatic tire capable of reducing air column resonance arising from circumferential grooves without changing the shape of unilaterally open-ended lug grooves. Lug grooves | 01-20-2011 |
20130112326 | TREAD STRIP WITH GROOVES FEATURING NOISE-REDUCING MEANS - A tread strip made of at least one rubber-based material, and having at least one longitudinal groove bounded by a bottom wall and by two lateral walls on opposite sides of the bottom wall; wherein a number of pins seamlessly project from at least one of the walls of the longitudinal groove, and are made of the same rubber-based material than the tread strip. | 05-09-2013 |
20130206300 | MOTORCYCLE TIRE - A motorcycle tire comprises a tread portion including a pair of tread edges to define a tread width, and a pair of tread shoulder regions each of which has a 12.5% width region of the tread width from each tread edge, the tread portion provided with a first lateral groove extending from one of the tread shoulder regions to the other one of the tread shoulder regions and a second lateral groove extending from a groove intersection where the first lateral groove and the second lateral groove cross each other, and a protruded portion being provided at least partially in the groove intersection so that a groove depth is reduced. | 08-15-2013 |
20130263988 | TYRE FOR HEAVY LOAD VEHICLE WHEELS - A tyre includes a tread provided with blocks formed among substantially longitudinal and transverse grooves, wherein among the blocks particularly broad intersections are formed, for example, by staggering substantially transverse grooves of circumferential rows axially in side-by-side relationship, of blocks with rounded corners, and wherein, inside such broad intersections, a stocky-shaped protrusion is arranged which has a lateral stiffness greater than the lateral stiffness of the surrounding blocks. | 10-10-2013 |
20130292020 | NOISE-REDUCING DEVICE INTENDED TO BE INSERTED INTO A GROOVE IN THE TREAD OF A TIRE AND TIRE COMPRISING A DEVICE OF THIS TYPE - Noise-reducing device intended to be added to a groove of the tread of a tire comprising an elastic sole preferably extending in a given longitudinal direction, wherein the said sole on one of its faces comprises one or several flexible walls the planes of which run substantially perpendicular to the longitudinal direction of the sole. | 11-07-2013 |
20140048190 | PNEUMATIC TIRE - Provided is a pneumatic tire capable of yielding excellent water-draining performance, while reducing air column resonance. This pneumatic tire ( | 02-20-2014 |
20140116588 | TREAD PROFILE OF A PNEUMATIC VEHICLE TIRE FOR UTILITY VEHICLES - A tread profile has a tread profile section which is in the center of the tire in the axial direction, and in each case one shoulder profile section. The central tread profile section is composed of profile belts, and the shoulder profile sections each have a second profile belt. A circumferential groove is arranged in each case between a first profile belt of the central section and the profile belt of the shoulder section. The groove is formed with a web which is radially raised from the groove base and which divides the groove into a narrow first and a wider second section which has, at the groove base, a linear section of extent which merges, with a curvature radius R | 05-01-2014 |
20140216619 | PNEUMATIC TIRE TREAD - A pneumatic tire tread capable of mitigating air column resonance and maintaining drainage performance while ensuring that the flexible fences are abraded to a similar extent to the tread portion is formed from a rubber composition and has a tread portion, in which is formed at least one primary groove of depth D and width W having a base surface and two opposing walls, and multiple flexible fences of thickness E, which extend inside the primary groove such that at least 70% of the cross-sectional area of the primary groove is blocked and which are disposed at intervals such that at least one of the multiple flexible fences is in the primary groove in the tread contact patch when the tire is rolling, wherein the multiple flexible fences are formed from at least a rubber composition for fences that is different from the rubber composition for the tread portion; and the rubber composition for fences has an abrasion index that is more than or equal to twice the abrasion index of the rubber composition of the tread portion. | 08-07-2014 |
20140230981 | PNEUMATIC TIRE TREAD - A pneumatic tire tread capable of mitigating air column resonance and maintaining drainage performance while ensuring that the flexible fences are abraded to a similar extent to the tread portion is formed from a rubber composition, and has a tread portion in which at least one primary groove is formed and multiple flexible fences is formed in the primary groove; the flexible fences are formed from at least a rubber composition for fences that is different from the rubber composition for the tread portion; the rubber composition for fences of the flexible fences has an abrasion index that is more than or equal to twice the abrasion index of the rubber composition of the tread portion; and the rubber composition for fences comprises a filler composition that is based on (a) a diene elastomer, (b) a reinforcing filler which is less than 50 phr; (c) a plasticizing system, and (d) a vulcanizing system. | 08-21-2014 |
20150034224 | PNEUMATIC TIRE TREAD - A pneumatic tire tread capable of mitigating air column resonance and maintaining drainage performance while ensuring that the flexible fences are abraded to a similar extent to the tread portion is formed from a rubber composition, and has a tread portion in which a primary groove is formed and multiple flexible fences is formed in the primary groove; the flexible fences are formed from at least a rubber composition for fences that is different from the rubber composition for the tread portion; the rubber composition for fences of the flexible fences has an abrasion index that is more than or equal to twice the abrasion index of the rubber composition of the tread portion; and the rubber composition for fences comprises a filler composition that is based on (a) a diene elastomer, (b) a filler A, which is more than 50 phr of filler A in which the filler particles are nanoparticles having an average grain size (by weight average) smaller than 500 nm; and (c) a filler B, which is more than 50 phr of filler B in which the filler particles are microparticles having a median grain size (by weight average) larger than 1 μm. | 02-05-2015 |
20150343849 | PNEUMATIC TIRE - A pneumatic tire includes a tread portion provided with at least one zigzag main groove extending continuously in a circumferential direction of the tire with a plurality of zigzag corners. The main groove includes a groove bottom and a pair of groove edges. The groove bottom extends in a zigzag manner in the circumferential direction of the tire with a first amplitude. The groove bottom has a width varying periodically so that a maximum width portion and a minimum width portion appear in turn at the zigzag corners. Each of the groove edges extends in a zigzag manner in the circumferential direction of the tire with a second amplitude, wherein the first amplitude is greater than the second amplitude. | 12-03-2015 |
20150360519 | PNEUMATIC TIRE - The present invention provides a pneumatic tire including: a groove formed in a tread, the groove having a groove bottom and groove side surfaces arising from the groove bottom; and a projection projecting from the groove bottom, wherein the projection includes a low-step portion located at a low position with reference to the groove bottom and a high-step portion located at a high position with reference to the groove bottom, the low-step portion has a first-side inclined surface inclined in a depth direction of the groove along a first groove side surface of the groove and a second-side inclined surface inclined in the depth direction of the groove along a second groove side surface of the groove, and the first-side inclined surface and the second-side inclined surface are inclined in different directions from each other. | 12-17-2015 |
20160159163 | PNEUMATIC TIRE - Water discharge performance and noise performance are improved in a balanced manner. A pneumatic tire has a main groove ( | 06-09-2016 |