Abstract: Lining element intended to be inserted into a mold for molding and vulcanizing a tire tread, the lining element comprising a body and inserts inserted into this body, at least some of the inserts comprising a pattern comprising a plurality of recessed or projecting elements, the pattern being formed as an integral part of the inserts.

Abstract: A mould comprises a lining, having a lining body (2), and at least one moulding element (1) that is articulated with respect to the lining body, a cylindrical part (10) constituting a rotation axis (X) and a moulding part (11) secured to the cylindrical part (10). The cylindrical part (10) is placed in a cylindrical hole (20) arranged in the lining body (2) made from the same material as the moulding element (1). The moulding element (1) is of one piece, and is non-separable from the lining body (2).

Abstract: Mould (22) for vulcanizing a tire comprises a lining (2) for moulding the tread of this tire and a mobile valve (1) intended to vent the mould (22). The valve is of a single piece and is guided in a guide part (200) belonging to the lining and in abutment on each side of this guide part to limit the movement of the valve in the lining. This valve and this guide part are made from the same material. The mobile valve thus produced is of one piece and non-removable from the guide part, and is therefore quicker and more accurate. It is held in the guide part by two abutments and, because it is made from the same material as the guide part, these can be produced at the same time. The mould in general comprises several valves to remove the air trapped during the moulding of the tire.

Abstract: Lining element intended to be inserted into a mould for moulding and vulcanizing a tire tread, the lining element comprising a body and inserts inserted into this body, at least some of the inserts comprising a pattern comprising a plurality of recessed or projecting elements, the pattern being formed as an integral part of the inserts.

Abstract: A molding element for a tire mold manufactured from a metallic powder fused together layer by layer. The molding element contains a first surface intended to mold all or part of a tread surface of the tire and a second surface opposite to the first surface and intended to be in contact with another part of the mold. The thickness (E) of the molding element is between 1 and 6 millimeters. The molding element overall has a density greater than or equal to 98%. The molding element also contains at least one first porous area extending into the thickness of this molding element, this first porous area having a plurality of pores allowing air to pass between the first surface of the molding element and the second surface thereof.

Abstract: A molding element for a tire mold manufactured from a metallic powder fused together layer by layer. The molding element contains a first surface intended to mold all or part of a tread surface of the tire and a second surface opposite to the first surface and intended to be in contact with another part of the mold. The thickness (E) of the molding element is between 1 and 6 millimetres. The molding element overall has a density greater than or equal to 98%. The molding element also contains at least one first porous area extending into the thickness of this molding element, this first porous area having a plurality of pores allowing air to pass between the first surface of the molding element and the second surface thereof.