Continental Gummi-werke Aktiengesellschaft

Willi Bachmann

Julius Peter

Klaus Thielemann

Klaus Von Der Wall

Heinz-Gunter Drossler

A tread or tread profile, especially for radial tires of trucks and similar vehicles, is disclosed. The tread includes six profile ribs arranged symmetrically to the circumferential center of the tire. Grooves of zigzag or similar wave patterns are provided between the profile ribs. The lateral profile ribs at the shoulders of the tire have a width which is about two times the width of a central profile rib and the pertaining lateral grooves are about 1/3 the width of the central groove. The tire can also be provided with radial recesses in the shoulder of the lateral profile ribs.

Tread for radial tires of trucks and similar vehicles

A pneumatic vehicle tire having a single layer radial carcass of steel or a material of similarly high strength. The carcass is anchored by being looped around the bead cores in the beads. The laterally outwardly lying free ends of the carcass layer may extend up to about half the height of the tire side walls. Laterally outwardly, next to the looped around carcass end, between the rim flange and this carcass end, there is provided a bead reinforcer which includes pull-resistant threads or the like which are parallel to one another. The bead reinforcer is slanted with regard to the carcass, preferably extending at an angle of about 15.degree. to 45.degree. to the circumferential direction of the tire. The radially outwardly lying free end of the bead reinforcer has associated therewith a strip which extends parallel to said free end and includes pull-resistant threads or the like which are arranged in a cord layer. These threads are likewise slanted with regard to the circumferential direction of the tire, preferably forming an angle of about 15.degree. to 45.degree. with the circumferential direction, but, with regard to the bead reinforcer, are oppositely slanted, i.e. cross the threads of the bead reinforcer, in such a way that the freely ending, laterally looped around carcass end forms with the bead reinforcer and this strip a triangular formation which practically maintains the mutual spacing of the carcass strength carriers and the strength carriers of the bead reinforcer.

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Isernhagen, Germany

Willi Bachmann