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。
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 in such a manner that their belt cords extend in a crisscross pattern. 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 2.0 mm. The belt plies are placed one over another with the both edge portions left unfolded. At least one of the plies is made from aramid fiber cords and at least the both edge portions of the belt plies are covered with at least one belt cover ply which has a cord angle of no greater than 30 deg with respect to the circumference of the tire. The belt cover ply is made of organic fiber cords no larger than 0.7 mm in diameter at a picking density of 35 to 90 percent.
摘要:
Pneumatic radial tires for automotive use are constructed with a belt layer reinforced with a steel cord of a unique structure. The steel cord results from the preformation of a single steel wire into a spiral shape meeting specified spiral parameters as determined by specified spiral diameters, specified wire diameters and specified spiral pitches. Significant weight saving is attainable with sufficient driving performance.
摘要:
A pneumatic tire having a tread portion with a tread pattern which is constituted by main grooves, auxiliary grooves, lug grooves and sipes, wherein the mean depth Gc of the auxiliary grooves, the mean depth Gs of the lug grooves and the mean depth Gk of the sipes are determined in relation to the mean depth G of the main grooves so as to meet the following conditions:Gk/G=0.65 to 0.85Gc/G=0.7 to 0.8Gs/G=0.8 to 1.0
摘要翻译:一种具有胎面花纹的胎面部的充气轮胎,其由主槽,辅助槽,花纹沟槽和刀槽花纹构成,其中辅助槽的平均深度Gc,横向花纹沟的平均深度Gs和平均深度Gk 刀槽花纹相对于主槽的平均深度G确定,以满足以下条件:Gk / G = 0.65至0.85Gc / G = 0.7至0.8Gs / G = 0.8至1。
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 system for notifying a driver in a vehicle of a level of danger of an occurrence of tire failure according to the present invention has a danger level assessment device which calculates a danger level assessment value indicating an index showing a probability of the occurrence of the failure from a measured tire inflation pressure and a measured tire running speed, using a characterized danger level assessing function to assess the danger level according to the calculated value. The characterized assessing function is a function of a tire running speed and of a tire inflation pressure, in which a value of the function monotonously increases as the tire running speed increase and as the tire inflation pressure decreases. The danger level assessment value is obtained by adding a cumulative value determined according to usage history of the tire to a value calculated from the danger level assessing function with the measured tire running speed and the measured tire inflation pressure.
摘要:
A pneumatic tire having a tread surface comprised of a plurality of pitches of different lengths arranged to extend around the circumference of the tire and which includes a pitch of the shortest pitch length P.sub.min and a pitch of the longest pitch length P.sub.max, a period of the pitches begins with a pitch of P.sub.min and contains at least one pitch of P.sub.max between the pitch of P.sub.min and a pitch of P.sub.min in a next period, a fundamental period begins with the pitch of P.sub.min and ends with a pitch located immediately before the pitch of P.sub.min located first in the next period. In a pitch arangement within the fundamental period, the proportion of components of each higher order in the range of a second order to a fourth order relative to the first-order component is 80 to 200% when Fourier expansion of a stepped waveform comprising the reciprocal of the pitch length and the pitch length is conducted. The number of the fundamental periods is 1 to 4. The length of the pitch arrangement is 60% or more of the total circumferential length of the tire. The length of each fundamental period is at least 1/7 of the total circumferential length of the tire.
摘要:
A pneumatic radial tire for a passenger car, which includes a plurality of grooves provided on the surface of a tread and extending at least in a tire circumferential direction and a belt layer having a double layer structure and provided within the tread, characterized in that the total sectional area, .alpha., of steel wires per 50 mm width of the belt layer is in a range satisfying 5.ltoreq..alpha..ltoreq.9 mm.sup.2, the depth, d, of the grooves is in a range satisfying 6.0.ltoreq.d.ltoreq.8.0 mm, and the thickness, t, of rubber under the grooves defined as the distance from the bottom of the groove to the outermost belt layer is in a range satisfying 1.0.ltoreq.t.ltoreq.2.5 mm.
摘要翻译:一种用于客车的充气子午线轮胎,其包括设置在胎面表面上的至少在轮胎周向延伸的多个槽和具有双层结构并设置在胎面内的带束层,其特征在于, 带束层每50mm宽度的钢丝的总截面积α在满足5≤α≤9mm2的范围内,槽的深度d在满足6.0 < d = 8.0mm,橡胶下面的凹槽的厚度t定义为从凹槽的底部到最外侧带束层的距离,该厚度在满足1.0≤t≤2.5mm的范围内。