Patent application number | Description | Published |
20130220501 | PNEUMATIC RADIAL TIRE FOR PASSENGER CARS - The pneumatic radial tire for passenger cars according to the present invention specifies the ratio W/L between the section width W and outside diameter L and includes a width direction groove located at an appropriate position on the tread surface. | 08-29-2013 |
20140138003 | PNEUMATIC RADIAL TIRE FOR PASSENGER VEHICLE, METHOD FOR USING THE TIRE, AND TIRE-RIM ASSEMBLY INCLUDING THE TIRE - The present invention provides: a pneumatic radial tire for a passenger car, the tire having cross sectional width SW and outer diameter OD satisfying a predetermined relationship formula when the tire is assembled with a rim and inflated at internal pressure of at least 250 kPa; a tire-rim assembly formed by assembling bead portions of said tire with the rim; and a method for using a tire, including preparing a pneumatic radial tire for a passenger car in which cross sectional width SW and outer diameter OD of the tire satisfy a predetermined relationship formula, and using the tire at internal pressure of at least 250 kPa. | 05-22-2014 |
20140158263 | PNEUMATIC RADIAL TIRE FOR A PASSENGER VEHICLE AND METHOD OF USING THE TIRE - Provided is a pneumatic radial tire for a passenger vehicle, having a carcass, and including a belt and a tread disposed on the outside of the carcass, in which: a section width SW and an outer diameter OD of the tire have a ratio of SW/OD≦0.26 when SW<165 (mm), and SW and OD satisfy a relationship formula OD≧2.035×SW+282.3 when SW≧165 (mm); and provided that V1 represents a volume of rubber lying inside than the both ends of a maximum-width belt layer having a maximum width among the belt layers while lying outside than the reinforcing member which is the outermost layer of the belt layers at the center position in the tire width direction, and that V2 represents a total volume of all the grooves formed in a surface of the tread, V1 and V2 has a ratio V2/V1≦20%. | 06-12-2014 |
20140209228 | PNEUMATIC RADIAL TIRE FOR A PASSENGER VEHICLE AND METHOD OF USING THE SAME - A pneumatic radial tire for a passenger vehicle according to the present invention has an appropriate relationship between a tire cross-sectional width SW and a tire outer diameter OD. Also, a method of using the pneumatic radial tire for a passenger vehicle according to the present invention is to use the above radial tire with at least specified internal pressure. | 07-31-2014 |
20140290816 | PNEUMATIC RADIAL TIRE FOR A PASSENGER VEHICLE AND METHOD OF USING THE TIRE - Provided is a pneumatic radial tire for a passenger vehicle, including: a carcass constituted of plies as radially-disposed cords and toroidally provided across a pair of bead portions; and a tread, in which: the tread surface has one or more grooves formed thereon; the grooves each have a groove width of 3 mm or less; and a section width SW to an outer diameter OD of the tire have a ratio of SW/OD≦0.26 when SW<165 (mm), and SW and OD satisfy a relationship formula OD≧2.035×SW+282.3 when SW≧165 (mm). | 10-02-2014 |
20140290819 | PNEUMATIC RADIAL TIRE FOR PASSENGER VEHICLE - An object of the present invention is to adequately control relationship between a cross sectional width SW and an outer diameter OD of a pneumatic radial tire for a passenger vehicle. The tire is further characterized in that, provided that each half portion in the tire width direction of a ground contact surface of the tire is divided in the tire width direction into three equal portions including a tire-width-direction center portion, a tire-width-direction intermediate portion and a tire-width-direction outer portion from the tire-width-direction center side, rigidity in the tire circumferential direction of the belt reinforcing layer in a region in the tire width direction thereof corresponding to the tire-width-direction outer side portion is lower than rigidity in the tire circumferential direction of the belt reinforcing layer in a region in the tire width direction thereof corresponding to the tire-width-direction center portion. | 10-02-2014 |
20140290820 | PNEUMATIC RADIAL TIRE FOR PASSENGER VEHICLE AND METHOD FOR USING THE SAME - An object of the present invention is to adequately control relationship between a cross sectional width SW and an outer diameter OD of a pneumatic radial tire for a passenger vehicle. Specifically, a ground contact surface | 10-02-2014 |
20140299247 | PNEUMATIC RADIAL TIRE FOR PASSENGER VEHICLE - The present invention provides a pneumatic radial tire for a passenger vehicle, having: a cross sectional width SW and an outer diameter OD controlled under an appropriate SW-OD relationship; and an optimized configuration of a crown portion thereof. | 10-09-2014 |