Michelin Recherche Et Technique S.a.

Sedepro

Compagnie Générale Des Etablissements Michelin-Michelin & Cie

Jean-Claude Mayet

Daniel Laurent

A cord is supplied continuously and on demand by a suitable distributor. The apparatus is used with a revolving form () on which the reinforcement is progressively built up by depositing sections of the cord along a desired trajectory for the cord on the surface of the form. The apparatus comprises an element for depositing the cord on the surface of the form (), describing an alternating path between two turning points, pressers close to the turning points in order to apply the cord to the form at the ends of the trajectory, acting synchronously with the depositing element, a mobile guide () disposed opposite the form, in the space between the form and the path described by the depositing element, a fixed guide () substantially parallel to the mobile guide (), control means for moving the mobile guide () in a circumferential direction, and motorization means for synchronously piloting the depositing element, the pressers, and the control means of the mobile guide ().

Apparatus and method for manufacturing a tire reinforcement

The thread, intended to form a carcass reinforcement, is laid in continguous hoops on a rigid coreby a system with at least two oscillating arms transporting an orificeso as to enable it to pass over a coreand thus lay adjacent hoops.

Oscillating-arm apparatus for producing a tire reinforcement from a single thread

Device for fabricating a tire reinforcement by laying a cordon a core. An armis mounted on a carriage, which is itself mounted on a railin such manner that it can slide parallel relative to the rotation axis of the core

Device for the fabrication of a tire reinforcement, suitable for tires of large width

Device for fabricating a tire reinforcement by laying a cordon a core. An actuation mechanismis provided for transporting the cord laying element in a cyclic, back and forth movement, bringing it in successive cycles close to each of the ends desired for the cord in the said trajectory. The actuation mechanism comprises at least a main arm, a front auxiliary armand a rear auxiliary arm, the main armbeing articulated on the front auxiliary armand being mounted on the rear auxiliary armby a cam follower that cooperates with a slot

Device for the fabrication of a tire reinforcement, having multiple positioning arms which undergo a movement guided by a cam follower sliding in a slot

A thread, intended to form a carcass reinforcement for a tire, is laid in contiguous hoops on a rigid coreby a system with a single oscillating arm transporting an orificeso as to enable the orificeto pass over a coreand come as near as possible to each bead of the tire, in order to lay adjacent hoops.

Apparatus with a single oscillating arm, for producing a tire reinforcement from a single thread

An apparatus for manufacturing a tire reinforcement from a cord, cooperating with a substantially toroidal form on which arches of the cord are deposited according to a desired trajectory for the cord on the surface of the form, the apparatus having depositing members arranged on a support, the depositing members including a guide member in which the cord may slide freely, a mechanism for actuating the guide member in a cyclical, to-and-fro, movement, to bring the guide member in successive oscillations into the vicinity of each of the desired ends for the cord in the trajectory. The apparatus further includes a first motor imparting the desired movements to the actuating mechanism and a second motor for imparting to the depositing member support a cyclical movement synchronized with the actuating mechanism, allowing deflection of the final trajectory of the cord on the form.

Apparatus with a combination of movements for manufacturing a tire reinforcement from a single cord

An oscillating arm apparatus for manufacturing a tire reinforcement from a single cord in which the cord is deposited in contiguous arches on a rigid core by a system of arms arranged in series conveying an eyelet in such a way as to allow it to traverse a core and thus deposit adjacent arches.

Oscillating arm apparatus for manufacturing a tire reinforcement from a single cord

A thread, intended to form a carcass reinforcement, is wound in contiguous hoops on a rigid core through an eyelet fastened on a chain mounted on pulleys arranged around the core. The eyelet carries out a reciprocating movement around the core so as to progressively and contiguously lay a hoop upon each forward movement and a hoop upon each return movement.

Apparatus for the manufacture of a tire in which the carcass

Method for the manufacture of a tire in which the carcass reinforcement

A pair of hooks for the manufacture of a tire reinforcement from a cord in which one of the hooks (32) is articulated relative to the other hook (31). It is designed in such a manner as to permit hooking of a loop of cord on both hooks, to insure grasping of one and only one strand of the loop of the cord by the second hook (32) to maintain the loop open for the insertion of a bead wire, and to optimize the position of the hooks during both the hooking and the unhooking phases.

Pair of hooks for an apparatus for the manufacture of a tire

A method and device for securing the ends of a single reinforcement cord to the unvulcanized core (7) of a tire utilizing two jaws (10, 11) which clamp the cords arranged at the starting end (41, 42) and terminating end (43, 44) of the reinforcement. A cutting blade (13) cuts the cord which then, without loosening the jaws, are pressed against the core (7) in order to immobilize the cord (4) due to the layer of raw rubber with which the core (7) has been previously covered.

Growing community of inventors

Clermont-Ferrand, France

Jean-Claude Mayet