Abstract: A mold (20) for curing a tire comprises at least one body, such as a shell (21) or a lining, and at least one insert (22) mounted removably in a housing of the body, the molding surface (23) of the body having a first texture pattern (24), the molding surface (25) of the insert having a marking pattern (26). The molding surface of the insert also has a second texture pattern (27) chosen such that the surface molded by the second texture pattern contrasts with the surface molded by the marking pattern (26), and contrasts barely, if at all, with the surface molded by the first texture pattern (24).

Abstract: Process for additive manufacturing of at least one part. At least one layer of powder is deposited on a working surface using a layering device for distributing the powder mobile in translation along the surface and at least partly fusing the layer deposited using a beam of energy. The depositing and fusing steps are repeated in order to form the part by stacking of fused layers. The distribution component of the layering device is mobile in a direction substantially parallel to the direction of the length of each fused layer of the part. The depositing and fusing steps are repeated in order to form the part so that the length of the part extends along a direction substantially parallel to the stacking direction of the fused layers and so that the head of the part is oriented substantially perpendicular to the working surface.

Abstract: A tire (1) made of rubber material, comprising a tread (2), said tread having a tread surface (20) intended to come into contact with a road surface when the tire is being driven on, this tread surface having, in cross section, a certain curvature. The tread surface (20) comprises, over at least 80% of its surface, a texture (3) contrasting with the rest of the tire, this texture (3) having a plurality of elements that protrude from or are recessed into the tread surface (20), and each element extends perpendicularly (?=90°)to the tread surface (20) along the curvature of this tread surface (20).

Abstract: A tire made of rubbery material comprising a sidewall and a pattern formed on this sidewall. This pattern comprises a plurality of openings and intermediate zones separating these openings. In order for the pattern to contrast with the sidewall, the openings occupy at least 60% of the pattern, these openings being distributed through the pattern at a density at least equal to five openings per square millimeter (mm2), these openings having equivalent diameters of between 0.03 mm and 0.5 mm. A mold element for making the openings and and method of making the pattern using a laser.

Abstract: The invention relates to a tire made of rubbery material comprising a sidewall on which there is formed at least one pattern that contrasts with this sidewall. The pattern comprises a plurality of strands distributed through the pattern with a density of at least five strands per square millimeter (mm2), each strand having a mean cross section of between 0.003 mm2 and 0.06 mm2. The tire also comprises on the said sidewall at least two ribs that pass through the pattern and between which strands of the pattern are present, the said ribs being distant from one another by at most 10 mm, each rib having a height of at least 0.25 mm and a mean width of at least 0.20 mm, the said pattern following the relief formed by the ribs.

Abstract: Process for additive manufacturing of at least one part. At least one layer of powder is deposited on a working surface using a layering device for distributing the powder mobile in translation along the surface and at least partly fusing the layer deposited using a beam of energy. The depositing and fusing steps are repeated in order to form the part by stacking of fused layers. The distribution component of the layering device is mobile in a direction substantially parallel to the direction of the length of each fused layer of the part. The depositing and fusing steps are repeated in order to form the part so that the length of the part extends along a direction substantially parallel to the stacking direction of the fused layers and so that the head of the part is oriented substantially perpendicular to the working surface.

Abstract: A tire (1) made of rubber material, comprising a tread (2) and a sidewall (3), said tire (1) comprising a marking (4) on the tread (2) and/or said sidewall (3). The marking (4) is divided into a plurality of basic zones (50) of the same size, each basic zone (50) being able to be inscribed in a circle of diameter equal to 8 mm, each basic zone (50) comprising between 0 and N motifs (6), said motifs being formed integrally with the tire so as to define a grey level (Nx) of the basic zone (50) from N+1 grey levels (Nx), the grey level of a basic zone (50) depending on the number of motifs present in this basic zone (50). The marking (4) on the tire comprises at least 5 different grey levels.

Abstract: A mould element (2) for a mould for a tire comprising a marking (20), the mould comprising a shell intended to mould the sidewall (10) of the tire (1). The mould element (2) is a removable insert intended to be mounted in a housing of the shell, and the marking (20) is intended to mould on the tire a coded matrix symbol that contrasts with the sidewall of the tire, the marking (20) comprising a first set of cavities (201) or of protuberances (202) which is designed to mould dark parts of the coded matrix symbol (5).

Abstract: A tire (1) made of rubber material, comprising a tread (2), said tread having a tread surface (20) intended to come into contact with a road surface when the tire is being driven on, this tread surface having, in cross section, a certain curvature. The tread surface (20) comprises, over at least 80% of its surface, a texture (3) contrasting with the rest of the tire, this texture (3) having a plurality of elements that protrude from or are recessed into the tread surface (20), and each element extends perpendicularly) (?=90° to the tread surface (20) along the curvature of this tread surface (20).

Abstract: A tire made of rubbery material comprising a sidewall (3). The sidewall (3) comprises at least one coded matrix symbol (4), the coded matrix symbol (4) comprising dark parts and light parts, the dark parts being made up of a texture formed as an integral part of the sidewall (3) and contrasting against the rest of the tire (1). The texture is an organized arrangement of a plurality of elements (401, 402, 403, 404, 405, 411, 414).

Abstract: A tire made of rubbery material comprising a sidewall and a pattern formed on this sidewall. This pattern comprises a plurality of openings and intermediate zones separating these openings. In order for the pattern to contrast with the sidewall, the openings occupy at least 60% of the pattern, these openings being distributed through the pattern at a density at least equal to five openings per square millimetre (mm2), these openings having equivalent diameters of between 0.03 mm and 0.5 mm. A mold element for making the openings and and method of making the pattern using a laser.

Abstract: The invention relates to a tire made of rubbery material comprising a sidewall on which there is formed at least one pattern that contrasts with this sidewall. The pattern comprises a plurality of strands distributed through the pattern with a density of at least five strands per square millimetre (mm2), each strand having a mean cross section of between 0.003 mm2 and 0.06 mm2. The tire also comprises on the said sidewall at least two ribs that pass through the pattern and between which strands of the pattern are present, the said ribs being distant from one another by at most 10 mm, each rib having a height of at least 0.25 mm and a mean width of at least 0.20 mm, the said pattern following the relief formed by the ribs.

Abstract: A rubber tire comprising a surface having, over at least a portion of this surface, a pattern comprising a plurality of bars placed substantially parallel with one another, each comprising a tip distant from the surface of the tire and a base materially integral with the tire. Each bar of the plurality of bars comprises two inclined walls extending on either side of the tip towards the base, the angle of inclination of each inclined walls less than or equal in absolute value to 25° relative to a direction perpendicular to the surface. The bases of the bars are not in contact with one another so that the bases of two adjacent bars delimit a residual surface between the bars. The width of the residual surface corresponding to a distance between the bases of the two adjacent bars is less than or equal to half the height of the adjacent bars, the height being between 0.1 mm and 0.8 mm.

Abstract: Tire having a visible surface comprising patterns contrasting with said surface, said pattern comprising, over the entire surface thereof, a plurality of tufts distributed with a density of at least five tufts per mm2 or a plurality of blades which are substantially parallel to one another and arranged with a pitch of less than 0.5 mm, each tuft having a mean cross section having a diameter of between 0.03 mm and 0.5 mm or each blade having a mean width of between 0.03 mm and 0.5 mm, characterized in that the walls of the tufts or of the blades have, over at least one quarter of the area thereof, a mean roughness Rz of between 5 ?m and 30 ?m.

Abstract: Tire having a visible surface comprising patterns contrasting with said surface, said pattern comprising, over the entire surface thereof, a plurality of tufts distributed with a density of at least five tufts per mm2 or a plurality of blades which are substantially parallel to one another and arranged with a pitch of less than 0.5 mm, each tuft having a mean cross section having a diameter of between 0.03 mm and 0.5 mm or each blade having a mean width of between 0.03 mm and 0.5 mm, characterized in that the walls of the tufts or of the blades have, over at least one quarter of the area thereof, a mean roughness Rz of between 5 ?m and 30 ?m.

Abstract: A mold for vulcanizing an unvulcanized tire blank comprises: two axial members each carrying a molding surface for molding a sidewall of the tire, at least one of the axial members being movable between a position for molding the sidewall and a position for unmolding the tire; at least one molding member for molding a channel in a tread of the tire, the molding member being movable between a channel-molding position and a channel-unmolding position; and axial movement means for axially moving the channel-molding member between its molding and unmolding positions. The axial movement means include releasable connection means between the channel-molding member and the axial member.

Abstract: A tire includes a tread in which there is provided a molded channel. The molded channel is interrupted by at least one furrow of the tread and extends along a curved path. The path of the molded channel is preferably substantially parallel to an outside surface of the tread in a radial section plane of the tire.

Abstract: A mold for vulcanizing an unvulcanized tire blank comprises: two axial members each carrying a molding surface for molding a sidewall of the tire, at least one of the axial members being movable between a position for molding the sidewall and a position for unmolding the tire; at least one molding member for molding a channel in a tread of the tire, the molding member being movable between a channel-molding position and a channel-unmolding position; and axial movement means for axially moving the channel-molding member between its molding and unmolding positions. The axial movement means include releasable connection means between the channel-molding member and the axial member.

Abstract: A mold for molding a tread of rubber mix, this tread comprising a running surface delimited axially by lateral faces, this mold comprising (i) a central part for molding the running surface, movable between an open configuration allowing filling of the mold and a closed configuration allowing molding, the central part comprising at least one rib for molding a groove in the running surface; (ii) two lateral parts for molding the lateral faces, at least one of the lateral parts being axially movable relative to the central part; et (iii) at least one pin for molding a channel inside the tread, this pin being anchored in one of the lateral parts; and in which, when the mold is closed, a contact surface is formed between the pin and the rib, and the pin and/or the rib comprise a buffer made of a deformable material, deformation of which makes it possible to fill in the clearance between the pin and the rib at the contact surface when the mold is closed.

Abstract: A mold for molding a tread of rubber mix, this tread comprising a running surface delimited axially by lateral faces, this mold comprising (i) a central part for molding the running surface, movable between an open configuration allowing filling of the mold and a closed configuration allowing molding, the central part comprising at least one rib for molding a groove in the running surface; (ii) two lateral parts for molding the lateral faces, at least one of the lateral parts being axially movable relative to the central part; et (iii) at least one pin for molding a channel inside the tread, this pin being anchored in one of the lateral parts; and in which, when the mold is closed, a contact surface is formed between the pin and the rib, and the pin and/or the rib comprise a buffer made of a deformable material, deformation of which makes it possible to fill in the clearance between the pin and the rib at the contact surface when the mold is closed.