Abstract: An assembly of a pneumatic tire and of a wheel, the pneumatic tire (10) being fitted to the wheel. The assembly comprises first and second self-sealing products housed in the internal volume (V) of the pneumatic tire (10). The first self-sealing product, referred to as solid self-sealing product (OS), covers a predetermined part of the internal surface of the pneumatic tire (10). The relative position of this predetermined part in the pneumatic tire (10) does not substantially vary under the effect of gravity. The second self-sealing product, referred to as liquid self-sealing product (OL), is in the liquid form.

Abstract: Technique to increase the endurance of tires comprising two crossed working layers (41, 42), comprising mutually parallel reinforcing elements (411, 421) forming, with the circumferential direction (XX?) of the tire, an angle at least equal to 20° and at most equal to 50°, the reinforcing elements being made up of individual metal threads or monofilaments having a cross section at least equal to 0.20 mm and at most equal to 0.6 mm. The end of the monofilaments comprises flats such that they reduce the shear forces in the rubber compounds of the tire under compressive loading.

Abstract: Technique to increase the endurance of tires comprising two crossed working layers (41, 42), comprising mutually parallel reinforcing elements (411, 421) forming, with the circumferential direction (XX?) of the tire, an angle at least equal to 20° and at most equal to 50°, the reinforcing elements being made up of individual metal threads or monofilaments having a cross section at least equal to 0.20 mm and at most equal to 0.6 mm. The end of the monofilaments comprises flats such that they reduce the shear forces in the rubber compounds of the tire under compressive loading.

Abstract: An assembly of a pneumatic tire and of a wheel, the pneumatic tire (10) being fitted to the wheel. The assembly comprises first and second self-sealing products housed in the internal volume (V) of the pneumatic tire (10). The first self-sealing product, referred to as solid self-sealing product (OS), covers a predetermined part of the internal surface of the pneumatic tire (10). The relative position of this predetermined part in the pneumatic tire (10) does not substantially vary under the effect of gravity. The second self-sealing product, referred to as liquid self-sealing product (OL), is in the liquid form.

Abstract: Device for manufacturing the tread of a tire, said tread comprising a plurality of relief tread elements of height h whose radially outer surface is designed to be in contact with the ground when the tire is rolling on the road surface, comprising a rotary support suitable for supporting a base strip (MB) forming a receiving surface (S), an extrusion die (1) comprising a plurality of extrusion nozzles whose outlet channels are oriented radially approximately perpendicular to the receiving surface (S), at least two compound supply means, each feeding into one or more separate extrusion nozzles, and means for positioning and moving the extrusion die relative to the receiving surface (S).

Abstract: A tire tread includes a plurality of elements in relief (rib and/or block) having lateral faces, and a contact face intended to come into contact with the roadway during travel. The intersection of each lateral face with the contact face forms a ridge. The tread also includes a plurality of cutouts each defined by opposing main faces. Each tread pattern element is formed with at least one base mix. As viewed in section in a plane containing the thickness of this tread, at least one face defining at least one cutout is formed at least in part with a covering mix. The base mix exhibits a gripping action on wet ground which is lower than a gripping action of the covering mix on the same ground.

Abstract: A tire tread comprising: a plurality of elements in relief (rib and/or block) comprising a contact face intended to come into contact with the roadway during travel and lateral faces, the intersection of each lateral face with the contact face forming a ridge, a plurality of cutouts in the form of grooves and/or incisions, said cutouts being defined by opposing main faces, each tread pattern element being formed with at least one rubber mix (referred to as “base mix”), and characterized in that, viewed in section in a plane containing the thickness of this tread, at least one face defining at least one cutout is formed at least in part with a rubber mix, referred to as “covering mix”, the base mix having a grip on wet ground which is lower than the grip of the covering mix on the same ground.

Abstract: A tread pattern for a tire, the tread pattern being formed by elements in relief defined by grooves, some of these elements in relief being provided with at least one blind incision, that is to say, one which does not open into the grooves. These elements in relief include at least one cutout which opens into at least one groove defining these elements, and such that, on the running surface, each blind incision crosses at least one open-ended cutout of the same element, whatever the level of wear of the tire. Each of these open-ended incisions has a depth substantially equal to the depth of the blind incisions which it crosses and is filled with a filler material, the filler material having the characteristic of being gradually eliminated under the action of frictional contact with the ground during travel to form a channel of low depth which enables the air trapped in the blind incisions to escape.