Continental Aktiengesellschaft

Continental Gummi-werke Aktiengesellschaft

Other

Heinrich Huinink

Horst Sergel

Udo Frerichs

Hans Seitz

Heinz-Dieter Rach

Dionysius J Poque

Klaus Kleinhoff

Thomas Becherer

Gerhard Mauk

Andreas K&ouml;be

Helmut Fennel

Michael Latarnik

Holger Oldenettel

Michael Glinz

Gerhard Ernst

Hans-Bernd Hellweg

Frank Gauterin

Thomas Dodt

Thorsten Reese

Geert Roik

Hans-Dieter Pfeiffer

Volkmar Fries

Helmut Gaus

Wolfgang Brettschneider

Werner Knauf

Wolfgang Holzbach

Carsten Boltze

Frank Walloch

Thomas Schulze

Roland Knopp

Daniel Pfaff

Heinrich Decker

Horst Wissbrock

Hubertus Von Grunberg

A process is disclosed for producing a vehicular pneumatic tire, in which, in order to produce and apply a preferably unvulcanized tread strip to a partial tire, which already has a cambered carcass and a ply packet radially outward therefrom, at least two strips of material, each consisting of a mixture of rubber and/or plastic, are applied to the partial tire. At least one strip of material is wound in numerous essentially adjoining windings running in the circumferential direction of the tire. In the case of two strips of material, these consist of different mixtures and, depending upon the desired characteristics of the tire, are arranged simultaneously or sequentially on different areas in the inner or the radially outer zone of the space occupied by the finished tread strip.

Process for producing a vehicular pneumatic tire

Vehicle wheel that includes a pneumatic tire mounted on a wheel rim. The pneumatic tire includes a tire tread, two side-walls, a carcass, reinforcing elements, and two tire beads with bead cores. The vehicle wheel also includes an emergency support body, mounted on the wheel rim and positioned inside the pneumatic tire. The emergency support body includes an emergency rolling surface to support the tire in case of a failure of the pneumatic tire. The emergency rolling surface includes a radially exterior surface of a ring torus with a bowl-shaped cross section, and the ring torus includes axially exterior sections having cross-sectional contours with first curvatures open to the wheel rim and an intermediate section positioned between the axially exterior sections having a contour with a second curvature open to a crest point of the pneumatic tire. The first and second curvatures include at least one radius of curvature and at least one supporting element is positioned to support the ring torus on the wheel rim.

Vehicle wheel with a pneumatic tire

System and method for ascertaining the emergency running condition of a pneumatic tire on a motor vehicle. The system includes at least one sensor device arranged at least on each axle. The at least one sensor device is adapted to supply a permanently present first periodic oscillation proportional to a wheel rotation speed as a speed output signal. The at least one sensor device includes one of an active and a passive magnetic field sensor being mounted to one of rotate with the tire and be stationary. The transmitter device is arranged complementary to the at least one passive and active magnetic field sensor and is adapted to produce a periodic magnetic field change in proportion to the wheel rotation speed in a detection range. At least one signal processing device is used for processing and evaluating the speed output signal. A transmission and a display device are used for at least one of the transmission and the display of the speed output signal, and for one of the transmission and the display of at least one of the output control and the warning signal. An emergency running device is arranged on the vehicle wheel.

Method and system for ascertaining the emergency running condition of a pneumatic tire

A vehicle wheel with a one-piece rim and tubeless pneumatic tire comprises an emergency rolling surface on a radially exterior shell of the rim, an elastic bead, and a one-piece toroidal chamber at each axial front end of the rim. Each chamber includes a closed radially interior chamber wall, a closed radially exterior chamber wall, a closed axially interior chamber wall, and an axially exterior chamber wall axially closed in a radially exterior area defining a radially inwardly directed flange and open in a radially interior area. A filler ring is radially secured in each chamber on the radially interior chamber wall. Each side wall of the tire extends inwardly from the axially exterior wall through the opening, and the head is embedded in the chamber such that the bead lies across the axial extent of the filler ring, the head and the filler ring completely filling the chamber.

Vehicle wheel with a tubeless pneumatic tire and a one-piece rim having an emergency rolling surface and a process for mounting the tire on the rim

A pneumatic vehicle tire includes a carcass, a bead with a bead core arranged in the bead, and a first sensor located within the bead. The first sensor delivers signals which are correlated to frictional forces transmitted by the pneumatic vehicle tire during operation. This sensor has a first end and a second end, wherein the first end includes a heel attached to the bead core and the second end extends radially outward from the bead core within the tire. A plurality of such sensors can be included in each tire, some for measuring longitudinal forces in a circumferential direction of the tire and others for measuring lateral forces in an axial direction of the tire.

Pneumatic automobile tire with integrated sensors and traction control system

A complete vehicle wheel assembly includes a wheel with wheel rim having two opposed circular rim flanges and a tire having beads secured at the circular rim flanges. Each one of the circular rim flanges has a tubular hollow chamber with an annular opening. The tubular hollow chamber has a square or rectangular cross-section, and the annular opening has a width such that the bead is insertable into the tubular hollow chamber only in a rotated or deformed state after insertion of the bead, a remaining free space in the tubular hollow chamber is filled with a liquid, hardenable material.

Complete vehicle wheel assembly

A device for measuring a rotary frequency of a rotating vehicle tire includes a number of first poles uniformly arranged on a circle with a radius R1 on or within a vehicle tire. A first sensor, for sensing the first poles, is stationarily arranged at a distance R2 from a rotational axis of the vehicle wheel. The radii have the following relationship: 0.9 R1&lt;R2&lt;1.1 R1. A computing unit is connected to the first sensor. The first sensor sends first signals to the computing unit when the first poles pass the first sensor. The computing unit determines a first time period between passing of sequential ones of the first poles. The computing unit multiplies a reciprocal value of the first time period by a reciprocal value of the number of the first poles to a multiplication product and supplies the multiplication product as a measure of a first rotary frequency to a user device.

Device for measuring the rotary frequency of a rotating vehicle wheel

A device for reducing certain sound ranges of tire/road surface noise of a motor vehicle includes sound absorbers in the form of resonators positioned at the inner wall of a wheel well of the vehicle in the area of sound projection of the tire/road surface noise. The device has an electronic control device for receiving a signal preferably derived from an ABS system in the form of the wheel rpm. The control device adjusts the resonators according to the number of tread blocks of the tire, the sound emission characteristics, and the wheel rpm. In another embodiment the electronic control device is supplied with signals received from a sound receiver that records the course over time of the sound pressure. The control device adjusts the resonators such that the measured sound pressure signal is minimized. In another alternative the device has a data processing unit including an electronic control device. The control device is supplied with a signal from sound receiving devices that record the course over time of the sound pressure. The data processing unit together with an adjusting device adjusts the resonators such that the measured sound pressure signal for selected frequency ranges is minimized.

Device for reducing tire/road surface noise

A pneumatic vehicle tire made of rubber or a rubber-like compound has a tire body with two sidewalls and a tread extending between the sidewalls. A carcass is embedded in the tire body and extends from a radially inner edge of a first sidewall to a radially inner edge of a second sidewall. A belt is embedded in the tire body radially inwardly of the tread and radially outwardly of the carcass. A rim-shaped support with fastening elements positioned radially outwardly at the support is provided. The support is connected to the tire body. Reinforcement elements in the form of cords and bands are connected to the fastening elements for forming the carcass. The reinforcement elements extend substantially without deflection from the fastening elements into a neutral bending line of the sidewalls.

Pneumatic vehicle tire with a support for reinforcement elements

A pneumatic vehicle tire having a carcass that is looped about two bead cores that comprise load-carrying members such as plastic filaments and/or metal wires, with beads in which the bead cores are disposed being capable of turning from a vulcanizing position into an operating position when the tire is being mounted on a wheel rim. In order to improve the tasks of the beads without adversely affecting their ability to turn, the surfaces of the load-carrying members of the bead cores, during turning of the beads prevent adhesion to vulcanized rubber at least to the extent that the load-carrying members are immersed in rubber in the vulcanizing position, so that each load-carrying member is individually rotatable about its longitudinal axis relative to the surrounding rubber of the pertaining bead.

Pneumatic vehicle tire having beads that are turnable

A tire tread of a vehicular tire has, in a peripheral tire direction, a plurality of tread block rows that are separated from one another by wave-shaped longitudinal grooves arranged essentially in the peripheral tire direction. The individual tread blocks within each individual tread block row are separated form one another by transverse grooves, whereby the transverse grooves are arranged such that in a left tread half as well as in a right tread half the transverse grooves are aligned with one another. The groove center lines of the transverse grooves at the outer rims of the tire tread are slanted relative to a tire axis at an angle of 3.degree. to 15.degree.. The groove center lines of the transverse grooves of the center tread block rows are slanted relative to the tire axis at an angle of 15.degree. to 50.degree. whereby the transverse grooves create a design of transversely arranged elongated S-shaped grooves. In order to provide a new tire tread which improves the concurrent properties of longevity, anti-skidding on wet surfaces, hydroplaning and noise reduction, it is suggested to provide the center tread block rows with alternating T-shaped and S-shaped tread blocks.

Tire tread

A vehicle wheel on which can be mounted a pneumatic tire which essentially includes rubber or rubber-like synthetic material, and has a carcass with load-carrying cords which are anchored in the bead regions of the tire via inextensible core rings. The wheel has a rigid rim with laterally outwardly disposed rim flanges; disposed axially inwardly of these rim flanges on the radially outer side of the rim are seating surfaces for the tire. To minimize disrupting effects on the tire tread, while at the same time improving the emergency operating conditions, a support member is disposed axially inwardly of the seating surfaces on the rim. This support member has a diameter which is greater than the diameter formed by the rim flanges. In the region of a given rim flange, the tire wall extends laterally outwardly from a given core ring in a substantially flat manner, and in particular in an angular range of from 0.degree. to 20.degree. relative to the axis of rotation of the tire. The carcass neutral line passes through the same region of a given rim flange in such a way as to avoid a turning point. The core rings are eccentrically disposed in their head regions in such a way that when the tire is mounted, the inner diameter of the tire in these bead regions is less than it is during mounting of the tire.

Vehicle wheel

A pneumatic vehicle tire which is provided with a belt and with tread rib sections which are separated from one another by respective circumferential grooves. One or more cord fabric plies are disposed in the vicinity of the circumferential grooves to reinforce the belt. The cord fabric plies essentially extend over the width of the groove, and preferably have a width which is slightly greater than the width of the grooves.

Pneumatic vehicle tire

An apparatus for mounting pneumatic vehicle tires, the beads of which, in the mounted state, are disposed on the radially inner periphery of a wheel rim. The apparatus permits simple and rapid mounting of a tire. A mounting unit which, after the introduction of a portion of the tire bead in a recessed portion of the rim, fixes the bead portion. A drivable roller, which in operation engages in the bead region of the tire, has a circumferential speed which is greater than the rolling speed on the tire.

Apparatus for mounting pneumatic vehicle tires

In combination, a vehicle wheel which has a rigid, one-part rim, and a belted pneumatic tire having a single-ply or multiple-ply carcass and substantially inextensible and/or tension resistant core rings in the beads. The rim has rim flanges and, adjacent thereto, seating surfaces for the belted tire. To permit simple mounting of the tire, there is proposed that, in the position of the mounted tire, the distance from the center of a core cross-section to the bead edge facing the seating surface is greater than the distance to the axially inner bead edge, so that the core ring is eccentrically mounted in this region of the bead.

Growing community of inventors

Garbsen, Germany

Heinrich Huinink