摘要:
The invention concerns a light safety support (1) for a tire comprising a base (2), a top (3) and an annular linking body (4) with a continuous support element around the circumference and a circumferential median plane, wherein the support element includes a plurality of partitions (13), (23) extending axially on either side of the circumferential median plane that are adapted in their central part relative to their lateral end parts to reinforce the support buckling strength under a radial load.
摘要:
Tire tread comprising a tread surface intended to come into contact with a roadway, this tread comprising at least one sipe extending in a main direction D and of mean width E, this sipe comprising in the main direction D at least one part sipe of shallow depth HF and at least one part sipe of great depth HG, the depth HF being less than the depth HG, each part sipe of shallow depth and each part sipe of great depth comprising an end region, this tread further comprising at least one insert oriented in a direction different from the main direction D of the sipe, this insert being positioned wholly within the thickness of the tread so as to be situated radially on the inside of a part sipe of shallow depth HF, this tread being such that at least the part sipe of shallow depth HF situated radially on the outside of the insert is provided, at its end region, with a widening forming a channel of maximum width W, this maximum width W being greater than the mean width E of the sipe.
摘要:
A method of estimating the temperature of the air in the internal cavity of a tire in which: prior to normal operation, a series of running tests are carried out on the tire provided with a means of measuring the internal air temperature at given speeds V and external temperatures Tamb, the tire supporting a given load and the cavity being at a given internal relative pressure, and an adjustment is made to a function giving the temperature of the internal air Tai according to the parameters of speed and external temperature; and in normal operation, the tire equipping a vehicle under the above conditions of load and relative pressure, the internal air temperature is estimated according to the speed of the vehicle and the temperature external to the vehicle. The method ia applied to the detection of abnormal operating in particular of a running-flat system.
摘要翻译:一种估计轮胎内腔中的空气的温度的方法,其中:在正常操作之前,对轮胎进行一系列运行试验,所述轮胎设有在给定速度下测量内部空气温度V和 外部温度T SUB>,轮胎支撑给定的载荷并且空腔处于给定的内部相对压力,并且进行调节以给出内部空气的温度T ai < / SUB>根据速度和外部温度参数; 并且在正常操作中,轮胎在上述负载和相对压力条件下装备车辆,根据车辆的速度和车辆外部的温度来估计内部空气温度。 该方法适用于异常操作的检测,特别是跑步平面系统的检测。
摘要:
Method of manufacturing a tire comprising a tread strip in which blind radial cuts are arranged in the blocks of rubber that form the tread pattern, comprising a step during which the cuts (33) are made in the unvulcanized tread strip (3) intended to cap the green tire. One or more blades (22) are raised to a temperature higher than the vulcanization temperature of the material of which the tread strip (3) is made are caused to penetrate the radially internal face (32) of the tread strip (3) for a sufficient period of time that they superficially vulcanize the walls of the cut in contact with the blade (22) so as to prevent the faces from sticking back together once the blade has been withdrawn from the cut.
摘要:
A method of estimating the temperature of the air in the internal cavity of a tire in which: prior to normal operation, a series of running tests are carried out on the tire provided with a means of measuring the internal air temperature at given speeds V and external temperatures Tamb, the tire supporting a given load and the cavity being at a given internal relative pressure, and an adjustment is made to a function giving the temperature of the internal air Tai according to the parameters of speed and external temperature; and in normal operation, the tire equipping a vehicle under the above conditions of load and relative pressure, the internal air temperature is estimated according to the speed of the vehicle and the temperature external to the vehicle. The method ia applied to the detection of abnormal operating in particular of a running-flat system.
摘要:
A method of estimating the temperature of the air in the internal cavity of a tire in which: prior to normal operation, a series of running tests are carried out on the tire provided with a means of measuring the internal air temperature at given speeds V and external temperatures Tamb, the tire supporting a given load and the cavity being at a given internal relative pressure, and an adjustment is made to a function giving the temperature of the internal air Tai according to the parameters of speed and external temperature; and in normal operation, the tire equipping a vehicle under the above conditions of load and relative pressure, the internal air temperature is estimated according to the speed of the vehicle and the temperature external to the vehicle. The method ia applied to the detection of abnormal operating in particular of a running-flat system.
摘要翻译:一种估计轮胎内腔中的空气的温度的方法,其中:在正常操作之前,对轮胎进行一系列运行试验,所述轮胎设有在给定速度下测量内部空气温度V和 外部温度T SUB>,轮胎支撑给定的载荷并且空腔处于给定的内部相对压力,并且进行调节以给出内部空气的温度T ai < / SUB>根据速度和外部温度参数; 并且在正常操作中,轮胎在上述负载和相对压力条件下装备车辆,根据车辆的速度和车辆外部的温度来估计内部空气温度。 该方法适用于异常操作的检测,特别是跑步平面系统的检测。
摘要:
Method of manufacturing a tire comprising a tread strip in which blind radial cuts are arranged in the blocks of rubber that form the tread pattern, comprising a step during which the cuts (33) are made in the unvulcanized tread strip (3) intended to cap the green tire. One or more blades (22) are raised to a temperature higher than the vulcanization temperature of the material of which the tread strip (3) is made are caused to penetrate the radially internal face (32) of the tread strip (3) for a sufficient period of time that they superficially vulcanize the walls of the cut in contact with the blade (22) so as to prevent the faces from sticking back together once the blade has been withdrawn from the cut.
摘要:
A method of fitting a tire P and a removable tread support S on a one-piece wheel rim J, rim comprising a first rim seat, inclined outwards, and the tire P comprises a first bead and a second bead to be mounted respectively on the first and second rim seats, in which, before completion of fitting the support S on a rim bearing surface of the rim, the first bead is gripped at a given point and is moved radially outwards to radially separate this point on the first bead from the support S. The fitting of the support S on the rim bearing surface continues and the bead is released after completion of the fitting of the support S.
摘要:
An assembly including a deformable, inextensible tread-bearing support S, which can be slipped on to a suitable rim bearing surface (11). The bearing surface (11) extends axially towards the inside of a first rim seat (13′), which is in turn extended to the outside by a protrusion or hump (15′) of low height. The first rim seat (13′) is inclined towards the outside. A second rim seat (13″) having, viewed in meridian section, a generatrix, the axially inner end of which is located on a circle of diameter D″A greater than the diameter of the circle on which is located the axially inner end D′A of the first rim seat (13′). The two seats being, axially to the inside, extended by frustoconical portions (17, 14) of a height at least equal to 0.01 times the minimum diameter of the bearing surface (11), and the generatrices of which form with the axis of rotation angles &agr; at least equal to 45°. The rim bearing surface (11) is provided with at least one circumferential protuberance (115) arranged in a circumferential groove (30) of the radially inner face of the tread bearing support S, such that the protuberance (115) axially comes to bear and butt up against at least one lateral wall of the groove (30).