DE1755025A1 - Pneumatic vehicle tires - Google Patents

Description

Continental Guraiai-V / erke AG

Pahi'zeug pneumatic tires

The invention relates to a pneumatic vehicle tire with a Folding belt made of cord fabric, with the one at the fold Liche itand of Gurtθla runs in relief circumferential direction and £ wipe the folds on top of each other Divide the belt a rubber sole is arranged.

the known tire of this type is dl · uummleohioht a 3? aaern reinforced rubber band "that through its geeamte width thereof has a uniform wall thickness and all" · is aeitig umaohloesen of the cord fabric <> Duron dieee Gueaischicht to the belt of the tire to be strengthened "

The invention is based on the object, the Duratanda ™

föBüigkeit dee GUrtelb to increase and to take care that the Gürtol the region of its cold spot as uniform as possible? has adenlagθ "

To achieve this object the Gunoisohloht an.der a fold location weaentlioh external Y / aniatärke al "has ere in their remaining 13 ic hen,

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BATH ORIGINAL

Such a training is preferably achieved by » that during the manufacture of the belt, i.e. when the Gord fabric layer is folded, a rubber strip is placed in the fold while the remaining parts are made of rubberized cord fabric immediately, el9ο without an intermediate layer for mutual installation This has the consequence of this at the points of contact the cord threads located there describe a comparatively large radius of curvature and therefore »without being deformed, insocdere kinked» their normal thread position in the rock · can occupy »that between adjacent cords a sufficiently thick »advantageous Oummisohioht 1st arranged, while at the same time the cords lie close to one another next to the fold. In this area, the superimposed cords are exclusively the comparative ones thin rubber stripes separately separated from each other

A tire belt 1 constructed in this way shows increased resistance otanda ability and strength.

Further details of the invention are based on the drawing explained, in which an exemplary embodiment is shown. Ee show:

Fig. 1 shows a radial part of a vehicle pneumatic tire,

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Pig. 2 shows a partial plan view of the belt of Keifens according to FIG. 1 and

Pig »3 and 4 3e Teilaohnitte through the edge of a belt for tires according to Figure 1o

Which essentially consists of rubber or rubber-like materials standing tire body 1 has a carcass 2, which consists of tensioned threads 3, which are at right angles to the tire » extend circumferentially and are anchored in the tire beads 4 by wrapping around the bead cores 5. Between the Tread tire 6 and the carcass 2, the belt 7 is arranged, which is designed as a so-called Paltgurtel and consists of a rubberized cord fabric layer 8 with tensile strength, parallel to each other Gord thread 9 consists. The hands 10 of the cord fabric layer 6 are folds around and extends to the middle of the tire 6 " The cold spots 11, which are the two side edges of the " Form belt 7, thus extend in the tire circumferential direction tUilge

The angle that the Gordfäden 9 with the Belfenkreisriohtung Form, it is selected that the belt 7 represents a bandage in the direction of the circumference of the tire and the tire body 1

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BADORlQiNAl. '

Stabilized against lateral forces Preferably, angles dk. provided from about 10 to 30 °,

Before mounting the tire, the Cordgewebelage has 8 · now be folded over a beidaeitige rubber whose outer surface is indicated by the dashed line 12 in Figure 3, the edges 10 of the first flaoh spread Cordgewebelag ", so the Binfalten is inserted a rubber strip rar which, after Completed construction and the completion of the tire or the vulcanization formed a rubber tube 13 kit with a roughly teardrop-shaped cross-section 9 immediately old of your Gunnilerung, the wall thickness of which is less than the thread thickness, lie on top of one another. The mutual spacing a of the threads 9 thus corresponds approximately to the thread thickness of the cord threads S, while the wall thickness of the layer 13 is approximately four times the thread thickness

Thus, eloh results in a comparatively large radius of curvature at the folded edge 11, which ensures the intended cord layer without deforming the individual cord threads and beyond

109842/0392

BATH ORIGINAL.

In addition, the belt edges have great durability result hato

According to FIG. 4, the rubber layer 13 can also be approximately pear-shaped Have shape to oo an even larger curvature wheellUB to be created on the fold edge 11

The belt 7 shown in FIG. 1 is generally only suitable for smaller tires with a lower load-bearing capacity. In the case of higher loads, two or possibly additional belts 7 are provided, which, however, also have a quoro-cut shape in the sense of FIGS. 3 and 4 Can be used with belt plies attached to their. The edges run out freely , i.e. are not folded over,

109842/0392

BATH ORIGINAL. , ... ,,

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Claims (1)

/ 1, / Pneumatic vehicle tires with a folding belt made of cord fabric, where the edge of the OUrtele at the fold is in Reifenuwfangsriohtung runs and between which the fold forming superimposed parts of the belt tin Gummisohioht is arranged «daduroh marked that the rubber tube on the folded edge (11) is ine weaentlloh φ has greater wall thickness compared to the other sections of the belt (7) · 2 Pneumatic vehicle tires according to Claim 1, marked as such, that the wall thicknesses were roughly 1: 2 to 1i5 3. Pneumatic vehicle tires naoh Anepruoh 1, daduroh marked, dafi the wall thickness · (a) approximately the Durohjaeteer of the belt (7) from forming cords (9) A, pneumatic vehicle tires naoh Anepruoh 1, characterized by the fact that the rubber tube (13) in the area of the folding edge (11) has an approximately teardrop-shaped or pear-shaped cross-section 5. Pneumatic vehicle tires naoh Anepruoh 1, daduroh characterized that the Shore hardness of the Gumoisohioht about 6 $ to 85 Shore A iso. * - Hanover, 21st, Harz 1968 6Θ-20 P / 17 G ( BADORIQfNAL