Abstract:
A wheel rim 1 for a tire 2 including a rim portion 1A having a rim body 5 and a pair of flanges 6, the rim body 5 having seat portions 5a for seating bead portions 2c of the tire 2 at both ends of the rim body 5 in a rotation axis direction thereof, and the pair of flanges 6 being continuously provided on both sides of the rim body 5 and extending radially outward, wherein convex portions 9 which extend in a direction intersecting with a tire circumferential direction are provided at distances from one another in the circumferential direction on an outer surface 6o, which does not come into contact with the tire 2, of the flanges 6 in the rotation axis direction and/or on an inner surface of the rim body 5 in a radial direction.
Abstract:
Disclosed is a vehicle equipped with air-filled tires, wherein heating of the air-filled tires during driving is minimized, and the durability of said tires is increased. Either many dimples are formed on the outside surface of at least one sidewall of the air-filled tires, or at least part of the outside surface of the sidewalls is formed using a good-thermal-conductivity rubber having a thermal conductivity of at least 0.40 W/(m·K). The vehicle is also provided with a cooling device that blows a gas that cools the air-filled tires from the outside.
Abstract translation:本发明公开了一种配备充气轮胎的车辆,其中,在充气轮胎的驾驶期间的加热最小化,并且提高了所述轮胎的耐久性。 在空气填充轮胎的至少一个侧壁的外表面上形成多个凹坑,或者使用导热率为至少0.40的良好导热橡胶形成侧壁的至少一部分外表面 W /(m·K)。 车辆还设置有一个冷却装置,该冷却装置吹送从外部冷却充气轮胎的气体。
Abstract:
A wheel rim 1 for a tire 2 including a rim portion 1A having a rim body 5 and a pair of flanges 6, the rim body 5 having seat portions 5a for seating bead portions 2c of the tire 2 at both ends of the rim body 5 in a rotation axis direction thereof, and the pair of flanges 6 being continuously provided on both sides of the rim body 5 and extending radially outward, wherein convex portions 9 which extend in a direction intersecting with a tire circumferential direction are provided at distances from one another in the circumferential direction on an outer surface 6o, which does not come into contact with the tire 2, of the flanges 6 in the rotation axis direction and/or on an inner surface of the rim body 5 in a radial direction.
Abstract:
The first invention relates to a vehicle with pneumatic tires characterized in that the vehicle comprises a cooling unit which expels a fluid to cool the pneumatic tire from the outside thereof at least when the air pressure of the pneumatic tire decreases. And, the second invention relates to a tire cooling method in the vehicle with pneumatic tires comprising: a step of monitoring the air pressure of the pneumatic tire during running, and a step of expelling a fluid toward the pneumatic tire so as to cool the pneumatic tire from its outside when the air pressure falls below a predetermined value.
Abstract:
A device for measuring angular velocity of a rotating tire, comprising a plurality (“m” pieces) of light reflection marks (3) disposed on an outer surface of a sidewall portion (2s) of a tire (2) so as to be located on a circumference line (j) of a single circle centered on a tire axis (i), a light sensor (5) fixed to a vehicle body (4) and capable of detecting passing of the light reflection marks (3) rotating with the tire (2), and a calculation means (7) for calculating the angular velocity Vr of the tire (2) by detecting passing of the light reflection marks (3) with the light sensor (5).
Abstract:
It is an object of the present invention to provide round fiber-reinforced plastic strand, a manufacturing method thereof, and a fiber-reinforced sheet which eliminate limitation in forming speed and limit on number of products capable of being manufactured at a time, do not require use of a release agent, eliminate the necessity of operations such as roughing after forming, and thus permit a considerable reduction of the manufacturing cost and a remarkable increase in the product quality. The manufacturing method of the round fiber-reinforced plastic strand of the present invention comprises (a) a step of continuously feeding reinforcing fiber bundles f1 each comprising a plurality of reinforcing fibers arranged in a direction while twisting the reinforcing fiber bundles f1; (b) a step of impregnating the reinforcing fiber bundles f1 fed continuously with a matrix resin R; and (c) a step of heating the resin-impregnated reinforcing fiber bundles f2 while tensioning to a prescribed intensity, thereby forming the reinforcing fiber bundle into a circular cross-section and hardening the resin, and manufactures a fiber-reinforced plastic strand 2 having a circular cross-section.
Abstract:
A studless tire comprises a tread defining a ground-contacting region, the tread comprising at least a diene rubber and non-metallic short fibers oriented in the tire radial direction. The tire profile satisfies the following equation 1>TW/S>0.92−0.17×A wherein TW is the ground-contacting width of the tire; S is the section width of the tire; and A is the tire aspect ratio. In the ground-contacting region, at least one circumferential rib of which total axial width is 15 to 30% of the ground-contacting width TW may be disposed. The ground-contacting face of the tread may be provided on at least 80% of its area with unevenness molded by a tire vulcanizing mold so as to have a ten-point mean roughness of from 30 to 500 micrometers.