Continental Aktiengesellschaft

Wolfgang Brettschneider

Heinrich Huinink

Carsten Boltze

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 pneumatic vehicle tire having bead portions that can be turned in is provided. Embedded in the bead portions are bead cores built up from load-carrying elements that essentially extend in a circumferential direction. The load-carrying elements are disposed in such a way that each element is in contact with at least two other load-carrying elements. The load-carrying elements, at least to the extent that they are coated with rubber, have a surface that prevents adhesion to vulcanized rubber. The load-carrying elements of a bead core are disposed in layers, with the elements of the outer layer being disposed in such a way that they do not contact one another.

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Seelze, Germany

Wolfgang Brettschneider