Process for the manufacture of tires by molding

A process of manufacturing a tire from one or more liquid or paste materials which solidify in a mold, the tire being formed of a crown and of two sidewalls each terminated by a reinforced bead and each without reinforcement, the mold being formed by an envelope which defines the outer toroidal surface of the tire and by a core which defines the inner surface of the tire, in which process the tire is molded in a cross section different from that of the tire when mounted on its rim but not inflated, this process being characterized by the use of a mold in which, in radial cross section,

• the crown of the tire is arranged approximately the same axially and radially as in the tire mounted on its rim but not inflated,
• the sidewalls have lengths practically identical to those in the tire when mounted on its rim but not inflated and median lines each formed of two consecutive segments, namely, a first segment which is rectilinear or concave towards the outside of the tire and is adjacent to the shoulder and a second segment which is concave towards the inside of the tire and is adjacent to the bead, the junction between the two segments being located at a radial distance from the crown which is greater than in the tire when mounted on its rim but not inflated, and
• the beads are arranged, on the one hand, approximately the same radially as in the tire when mounted on its rim but not inflated and, on the other hand, axially outward of their position on the rim.