摘要:
A pneumatic tire using as an air permeation prevention layer a film consisting of thermoplastic resin or thermoplastic elastomer composition obtained by blending thermoplastic resin with elastomer, wherein the film is prevented form being peeled off to prevent entry of a release agent into the interior and the internal view of the tire is improved. An air permeation prevention layer (10) disposed on the inner side of the tire is constituted of a laminate (14) obtained by layering ribbon-form elastomer layers (12, 13) on the opposite sides of a ribbon-form film (11). The laminate (14) is wound in the tire circumferential direction while being overlapped partially and deviated at specified intervals. Respective adjoining winding portions (14A1, 14A2) of the laminate (14) are joined by being overlapped partially with ribbon-form films (11) kept separated from each other.
摘要:
A pneumatic tire characterized in that an average thickness G.sub.U of the region of each of side walls which extends from a position corresponding to a widest portion of the tire toward a tread and that G.sub.L of the region of the side wall which extends from the same position toward a bead are set different from each other, the average thickness G.sub.U of the tread-side region being set to not less than 2.5 mm with the average thickness G.sub.L of the bead-side region set to less than 2.5 mm and not less than 1.0 mm.
摘要:
A pneumatic tire to be fitted on a wheel wherein a position, in which a disc is connected to a rim, is offset from the cneter of width of the rim toward the outer surface of the wheel, characterized in that a ratio (Ho/Hi) of an attenuation coefficient Ho (=Go.times.tan.delta.o) determined on the basis of an average thickness Go of an outer side wall of the tire on the outer side of the wheel and a loss factor tan.delta.o of the rubber of this side wall to that Hi (=Gi.times.tan.delta.i) determined on the basis of an average thickness Gi of an inner side wall of the tire on the inner side of the wheel and a loss factor tan.delta.i of the rubber of this side wall is set in the range of 1.2-6.5.
摘要:
In a pneumatic tire which is to be fitted to a wheel of the type in which connecting position of a disc to a rim is offsetted to a wheel outer side from a center of a rim width, and which has a plurality of blocks on a tread thereof, a pneumatic tire wherein a total contact area C.sub.2 of shoulder blocks on the tire outer side disposed on the offset side of the disc and a total contact area C.sub.1 of shoulder blocks on the tire inner side disposed on the opposite side to the offset side of the disc satisfy the relation, C.sub.1 /C.sub.2 =1.2 to 2.0.
摘要:
A pneumatic radial tire to be fitted on a wheel in which a position wherein a disc is joined to a rim is offset from the center of the width of the rim toward the outer surface of said wheel, characterized in that the tire comprises an asymmetric structure in which a belt layer is provided between a tread and a carcass layer, an outer circumferential portion of the belt layer being covered with at least one belt covering layer, the at least one belt covering layer being disposed so that an average position of the center(s) of the width(s) thereof from the equator of the tire is deviated toward the opposite side of the offset side of the disc, a ratio e/w of the deviating distance e to the width w of a ground contacting portion of the tread being set to 0.05-0.13.
摘要翻译:一种装配在车轮上的充气子午线轮胎,其中盘连接到轮辋的位置偏离轮辋宽度的中心朝向所述轮的外表面,其特征在于,轮胎包括不对称结构 其中在胎面和胎体层之间设置带束层,所述带束层的外周部分被至少一个带束层覆盖层覆盖,所述至少一个带束层覆盖层被设置成使得所述中心的平均位置 来自轮胎的赤道的宽度的一个或多个偏离到盘的偏移侧的相反侧,偏移距离e与接地部分的接地部分的宽度w的比率e / w 胎面设定为0.05-0.13。
摘要:
A pneumatic radial tire for passenger cars having a plurality of grooves formed in the tread and extending at least circumferentially of the tire, the tread being provided with two belt plies therein. The grooves have a depth in the range of 6.0 to 8.5 mm, with the thickness of the under-groove rubber layer from the bottom of the grooves to the outer belt ply being fixed within the range of 0.5 to 2.5 mm. The belt plies are both made from aramid fiber cords, or either belt ply is made from aramid fiber cords and the other ply from steel cords. The both edge portions of at least one of the belt plies are folded back toward the center of the tread at a fold percentage of 8 to 100 percent.
摘要:
A pneumatic radial tire characterized in that at least two belt layers reinforced with cords of a high elastic modulus extending at an angle of 14.degree.-33.degree. with respect to the circumferential direction of the tire are arranged between a tread and a carcass, at least one of these belt layers being folded back at both end portions thereof toward the equator of the tire so as to wrap both end portions of any remaining belt layers, at least one reinforcing layer which is reinforced with thermally contractible organic fiber cords which extend at substantially 0.degree. with respect to the circumferential direction of the tire being inserted inside of each of the folded portions of the at least one folded belt layer, the width of the reinforcing layers being set to 10-70% of that of each of the folded portions.
摘要:
Provided is a method of fitting a tire-and-wheel assembled body to an axle, which is capable of resolving imbalance in a state of fitting an assembled body including a tire and a wheel to an axle. In this fitting method, a tire is fitted to a wheel, and then core positions of fastening holes are, or a core position of a hub hole is, adjusted in the wheel to minimize an amount of eccentricity of an assembled body including the tire and the wheel.
摘要:
A tire breakdown warning device includes at least one temperature sensor for detection of temperature of a pneumatic tire, and provides a warning when a breakdown of the tire is found on the basis of detection signals detected by the at least one temperature sensor. The at least one temperature sensor is embedded in the vicinity of at least one end of at least one tire constituent component which is placed in the pneumatic tire and which is vulnerable to break down.
摘要:
A pneumatic radial tire in which a tread weight .alpha. per unit ground contact area is selected to be not greater than 1.80.times.10.sup.-3 kg/cm.sup.2, a cord reinforcing ply which extends up to a location outside of a top end of a bead filler in a radial direction of the tire is disposed in a bead portion and a cord angle .theta. of the cord reinforcing ply relative to a circumferential direction of the tire is selected to be 25.degree.-80.degree., a height RH of the cord reinforcing ply from a rim base up to the top end of the cord reinforcing ply, which is measured in the radial direction of the tire, is selected to satisfy the ratio, RH/SH=0.28-0.65, with SH being a cross-sectional height of the tire, and a height FH of the bead filler from the rim base up to the top end of the bead filler, which is measured in the radial direction of the tire, is selected to satisfy the ratio, FH/SH=0.11-0.28, with SH being the cross-sectional height of the tire.
摘要翻译:一种充气子午线轮胎,其中每单位接地面积的胎面重量α被选择为不大于1.80×10 -3 kg / cm 2,帘线增强层,其延伸到胎圈填料的顶端外侧的位置 轮胎的径向方向设置在胎圈部分中,并且帘线增强帘布层相对于轮胎的周向的帘线角度θ选择为25°-80°,帘线增强帘布层的高度RH从 选择在轮胎的径向方向上测量的帘线加强层的顶端的轮辋底座,以满足比率RH / SH = 0.28-0.65,其中SH是轮胎的横截面高度 ,并且选择胎圈填料从轮辋基座直到胎体填料的顶端的高度FH,其在轮胎的径向方向上测量,以满足比率FH / SH = 0.11-0.28,与 SH是轮胎的横截面高度。