Abstract: A process for directing the movement of a robot (102) with a gripper (108) that picks a target tire (P*) from an arrangement of tires includes the following steps: providing a system (100) for picking one or more tires stored in the arrangement of tires, the robot forming part of this system; determining one or more parameters of the target tire in the arrangement of tires; determining the diameter of the target tire; determining the tire radius (RP) and the rim radius (RJ) of the target tire; an approaching step whereby the robot approaches the target tire identified for picking; a picking step whereby the target tire is picked by the gripper; and extracting the target tire from the arrangement of tires in order to place it in a target location.

Abstract: The coextrusion installation is intended to generate a profiled element for a tire tread by extruding a sublayer made of first elastomeric compound, an overlayer made of second elastomeric compound for forming the tread pattern blocks, and inserts made of third elastomeric compound. The installation includes pre-scrapers followed by scrapers for deepening the embedding trenches, injectors for injecting an insert at the bottom of each embedding trench, and then a covering wall which allows the streams of the second elastomeric compound to meet by filling the embedding trench in question and by covering the corresponding insert so as to embed the said insert at a predetermined embedding depth.

Abstract: The present disclosure relates to a coextrusion process for manufacturing a profiled element intended to form a tread for a pneumatic tire. The process includes coextruding a first elastomer compound forming an underlayer and reinforcing wedges, a second elastomer compound forming tread pattern blocks supported laterally by the wedges, and a third elastomer compound. The third elastomer compound is different from the first and second elastomer compounds and is interposed between the lateral wall of each wedge and the corresponding tread pattern block so as to form a decoupling interface for separating the mechanical behavior of the wedge from that of the tread pattern block.

Abstract: A method for manufacturing a tread (5) based on uncured rubber material comprises the steps of forming a green form (9) of tread based on uncured rubber material having at least one tread pattern (2) block (3), each tread pattern (2) block (3) having a central portion (11) and at least one lateral portion (12) extending along the central portion (11), of mounting at least one reinforcing ply (7) on at least a part of the central portion (11), and of covering the central part (11) with the aid of the lateral portion (12) in order that the tread pattern (2) block (3) envelops the reinforcing ply (7).

Abstract: The present invention relates to a process for electroplating an adhesive composition onto at least one conductive element, in which the conductive element is placed in contact with the adhesive composition comprising: a phosphate salt and a resin based on: a compound A1, compound A1 being chosen from a compound A11 comprising at least two functions, one of these functions being a hydroxymethyl function and the other being an aldehyde function or a hydroxymethyl function, or a compound A12 comprising at least one aldehyde function, or a mixture of a compound A11 and of a compound A12; and a phenol A21. A potential difference is applied between the conductive element and the adhesive composition to coat the conductive element with an adhesive layer.

Abstract: The method for the coextrusion of a complex profiled element made up of the assembly of profiled elements formed from distinct rubber compounds. A coextrusion machine comprises upstream and downstream extruders which deliver into an extrusion cavity. A first profiled element, formed of the first rubber compound, is created. The first profiled element comprises at least a first profiled-element portion which is intended to form a longitudinal insert, a base of which is in continuity of material with the first profiled element. A complex profiled element formed of the first and second rubber compounds is created. The insert is circulated between walls of a channel extend in a longitudinal direction between the upstream profiling blade and the downstream profiling blade and together form a concave surface open towards the inside of the extrusion cavity in such a way that the bringing-together of the lateral walls of the insert with the second compound takes place only in the downstream gap.

Abstract: A torpedo for an extruder comprises: longitudinal member (9) which is provided at the periphery thereof with a plurality of thread portions (12) which protrude outwards and which are spaced apart in the circumferential direction; a plurality of sluice blades (19) which are mounted so as to be movable on the longitudinal member and which are partially engaged in apertures (18) of the longitudinal member, the longitudinal member (9) and the sluice blades (19) being provided with complementary radial guiding surfaces (13, 14, 18) which are in contact with each other; and adjustment means (28) for radially displacing the sluice blades relative to the longitudinal member. The sluice blades extend through the spaces between the thread portions, respectively. The thread portions (12) and the sluice blades (19) are provided with complementary radial guiding surfaces (13, 14, 18).

Abstract: A method for manufacturing a tread (5) based on uncured rubber material, comprises the steps of forming a green form (9) of tread based on uncured rubber material having at least one tread pattern (2) block (3), each tread pattern (2) block (3) having a central portion (11) and at least one lateral portion (12) extending along the central portion (11), of mounting at least one reinforcing ply (7) on at least a part of the central portion (11), and of covering the central part (11) with the aid of the lateral portion (12) in order that the tread pattern (2) block (3) envelops the reinforcing ply (7).

Abstract: A method is provided for the co-extrusion of a complex rubber profiled element. The method makes it possible to co-extrude a sublayer in a first material and a tread in a second material with at least one insert in a third material inserted in a discontinuity in the sublayer and in the tread. The method includes: a) discontinuous extrusion of the first material, b) discontinuous first profiling of the first material, c) discontinuous extrusion of the second material onto the first material, d) discontinuous profiling of the first and second materials and extrusion of the third material into each discontinuity, and e) final profiling of the first, second and third materials with a longitudinal groove in the profiled element next to each insert of the third material.

Abstract: A method for manufacturing a tire (1) comprises a step of positioning a reinforcing ply (9) in a rubber material having grooves (6a) such that the reinforcing ply (9) extends through the grooves (6a), and of crosslinking the tire (1) based on uncured rubber material while hot moulding the latter, with the reinforcing ply (9) being pushed against the bottom of the grooves (6a).

Abstract: ABSTRACT This weaving machine (2) includes a structure (4) able to support a plurality of warp threads (16) extending in a first direction, a heddles mechanism (18) capable of selectively moving at least some of the plurality of warp threads (16) to form first and second sheets (28, 30) of warp threads, and at least one weft-thread feed spool (38). The weaving machine (2) also includes at least one support shuttle (44) for the feed spool and an actuating device (32) able to control a movement of the shuttle (44) between the first and second sheets (28, 30) of warp threads in at least one second direction transverse to the first direction, in both senses relative to the second direction, to continuously lay the weft thread (43) coming from the feed spool (38) between the sheets (28, 30) and in the second direction.

Abstract: A head (50), for the co-extrusion of a complex rubber profiled element, includes a lower wall (56) of cylindrical profile, a first extrusion unit (B60) having a first extrusion duct (60) divided into various sub-ducts (60-1, 60-2, 60-3, 60-4), a first profiling blade (62) defining a first shaping profile (P62) that is discontinuous, a second extrusion unit (B64) including a second extrusion duct (64) divided into various sub-ducts (64-1, 64-2, 64-3, 64-4), a second profiling blade (66) including at least one tooth (67-1, 67-2, 67-3) situated in the continuation of a divider (72-1, 72-2, 72-3), and this second profiling blade (P66) incorporating at least one third extrusion duct, each outlet of a third extrusion duct closely adjoining a tooth (67-1, 67-2, 67-3) of the second profiling blade (66), and a third profiling blade (74) defining a final shaping profile (P74).

Abstract: The present invention relates to a process for electroplating an adhesive composition onto at least one conductive element, in which the conductive element is placed in contact with the adhesive composition comprising: a phosphate salt and a resin based on: a compound A1, compound A1 being chosen from a compound A11 comprising at least two functions, one of these functions being a hydroxymethyl function and the other being an aldehyde function or a hydroxymethyl function, or a compound A12 comprising at least one aldehyde function, or a mixture of a compound A11 and of a compound A12; and a phenol A21. A potential difference is applied between the conductive element and the adhesive composition to coat the conductive element with an adhesive layer.

Abstract: The method for the coextrusion of a complex profiled element made up of the assembly of profiled elements formed from distinct rubber compounds. A coextrusion machine comprises upstream and downstream extruders which deliver into an extrusion cavity. A first profiled element, formed of the first rubber compound, is created. The first profiled element comprises at least a first profiled-element portion which is intended to form a longitudinal insert, a base of which is in continuity of material with the first profiled element. A complex profiled element formed of the first and second rubber compounds is created. The insert is circulated between walls of a channel extend in a longitudinal direction between the upstream profiling blade and the downstream profiling blade and together form a concave surface open towards the inside of the extrusion cavity in such a way that the bringing-together of the lateral walls of the insert with the second compound takes place only in the downstream gap.

Abstract: A method for the co-extrusion of a rubber profiled element consists in extruding and profiling the various rubbery materials of the co-extruded profiled element over a given co-extrusion width and in a longitudinal direction of co-extrusion perpendicular to the transverse plane (PT). The method comprises the following succession of steps consisting in: a) extruding a first material, this being performed discontinuously, b) first profiling of the first material, performed discontinuously, c) extruding a second material, this being performed discontinuously, d) profiling the first and second materials, creating at least one longitudinal groove (26) in the profiled element (20), and, jointly, at least an extruding of a third material next to each longitudinal groove (26) created in the profiled element (20), and e) final profiling of the first, second and third materials to a final profile (P74) exhibiting no discontinuity across the co-extrusion width (L50).

Abstract: A head (50), for the co-extrusion of a complex rubber profiled element, includes a lower wall (56) of cylindrical profile, a first extrusion unit (B60) having a first extrusion duct (60) divided into various sub-ducts (60-1, 60-2, 60-3, 60-4), a first profiling blade (62) defining a first shaping profile (P62) that is discontinuous, a second extrusion unit (B64) including a second extrusion duct (64) divided into various sub-ducts (64-1, 64-2, 64-3, 64-4), a second profiling blade (66) including at least one tooth (67-1, 67-2, 67-3) situated in the continuation of a divider (72-1, 72-2, 72-3), and this second profiling blade (P66) incorporating at least one third extrusion duct, each outlet of a third extrusion duct closely adjoining a tooth (67-1, 67-2, 67-3) of the second profiling blade (66), and a third profiling blade (74) defining a final shaping profile (P74).

Abstract: A head is provided for the co-extrusion of a complex rubber profiled element for the manufacture of a tire. The head makes it possible to co-extrude a sublayer and a tread with inserts. To this end, the head includes, from upstream to downstream: a) a first extrusion duct divided into various sub-ducts, b) a discontinuous first profiling blade, c) a second extrusion duct divided into various sub-ducts, d) a discontinuous second profiling blade incorporating at least one third extrusion duct in the continuation of a divider, and e) a first profiling blade having a projecting tooth in front of and next to each outlet of a third duct in the transverse direction.

Abstract: This weaving machine (2) comprises a structure (4) able to support a plurality of warp threads (16) extending in a first direction, a heddles mechanism (18) capable of selectively moving at least some of the plurality of warp threads (16) to form first and second sheets (28, 30) of warp threads, and at least one weft-thread feed spool (38). The weaving machine (2) also includes at least one support shuttle (44) for said feed spool and an actuating device (32) able to control a movement of said shuttle (44) between the first and second sheets (28, 30) of warp threads in at least one second direction transverse to the first direction, in both senses relative to said second direction, to continuously lay the weft thread (43) coming from the feed spool (38) between said sheets (28, 30) and in said second direction.

Abstract: A torpedo for an extruder comprises: longitudinal member (9) which is provided at the periphery thereof with a plurality of thread portions (12) which protrude outwards and which are spaced apart in the circumferential direction; a plurality of sluice blades (19) which are mounted so as to be movable on the longitudinal member and which are partially engaged in apertures (18) of the longitudinal member, the longitudinal member (9) and the sluice blades (19) being provided with complementary radial guiding surfaces (13, 14, 18) which are in contact with each other; and adjustment means (28) for radially displacing the sluice blades relative to the longitudinal member. The sluice blades extend through the spaces between the thread portions, respectively. The thread portions (12) and the sluice blades (19) are provided with complementary radial guiding surfaces (13, 14, 18).

Abstract: A head is provided for the co-extrusion of a complex rubber profiled element for the manufacture of a tire. The head makes it possible to co-extrude a sublayer and a tread with inserts. To this end, the head includes, from upstream to downstream: a) a first extrusion duct divided into various sub-ducts, b) a discontinuous first profiling blade, c) a second extrusion duct divided into various sub-ducts, d) a discontinuous second profiling blade incorporating at least one third extrusion duct in the continuation of a divider, and e) a first profiling blade having a projecting tooth in front of and next to each outlet of a third duct in the transverse direction.