Sedepro

Sedepro Societe Anonyme

Jean-Pierre Ladouce

Alain Soulalioux

A rigid core at least partially defining a manufacturing form for the internal surface of a tire, the core including a plurality of circumferentially adjacent fractions disposed side by side in contact with one another by their transverse faces, the transverse faces of at least one fraction converging radially at the exterior of the core, each of the fractions including a portion for attachment to a rim, the attachment portion being arranged at the radially internal end of each of the fractions, the attachment portion being produced essentially from a first material, the core further including a main portion which is integrally connected to the attachment portion, is produced essentially from a second material different from the first material and is integrally connected to the attachment portion, the manufacturing form being essentially defined by said main portion.

Rigid core in two portions for the manufacture of tires

The tire mold includes a peripheral ring split into two parts (G and D). The peripheral ring is laminated. It consists of a stack in the circumferential direction of a number of thin adjacent elements (1) made, for example, of metal sheets. The elements are of two different types: standard elements and intermediate elements, which follow on from one another circumferentially. The mold includes alignment means interacting with said intermediate elements in order to impose an orientation with respect to the radial direction on said intermediate elements. These means are, for example, grooves in which the intermediate elements are engaged.

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Fribourg, Switzerland

Jean-Pierre Ladouce