Abstract: A molding element) of a mold for molding and vulcanizing a tire treadcontaining a molding surface intended to mold part of the tread surface of the tire and a complex blade of projecting from the molding surface, containing a body oriented mainly in a circumferential direction X and at least one U-shaped secondary branch facing towards this body, the secondary branch being oriented mainly in an oblique direction J, J making a non-zero angle ? with a transverse direction Y perpendicular to the circumferential direction X, the secondary branch in contact with the main body at two contact zones to delimit a cavity of length L, wherein the molding element has a main cutting means projecting from the molding surface, extending between two of its ends and running parallel to J, the length being less than the length L, and wherein the molding element has at least two secondary cutting means of height Hs extending from one of the ends of the main cutting means as far as one of the contact zones facing this end, and f

Abstract: A molding element for molding and vulcanizing a tire tread. This tread comprises a tread surface intended to come into contact with the ground when this tire is running. This molding element comprises a molding surface intended to mold part of the tire tread surface and a blade of length L and of height Hc intended to mold a sipe or a groove in the tread, the blade comprising a rounded end extending along the length of the blade in a direction of extension X. The molding element comprises two cutting means positioned on either side of the blade at a certain distance from this blade. Each cutting means comprises, at one end, an alternation of peaks and troughs extending in this direction of extension X. The distance of these peaks in relation to the molding surface is greater than or equal to the height Hc of the blade.

Abstract: A molding element of a mold for molding and vulcanizing a tire tread, this tread comprising a tread surface intended to come into contact with the ground when the tire is running. The molding element comprises a molding surface intended to mold part of the tire tread surface and a blade of length L and of height H intended to mold a sipe or a groove in the tread. This blade comprises a rounded end extending along the length of the blade in a direction of extension X. The molding element further comprises two cutting means positioned on either side of the blade at a certain distance from this blade. Each cutting means comprises a cutting edge extending in the direction of extension, this cutting edge making an acute angle in a cutting plane perpendicular to this direction of extension, the height of this cutting edge being greater than or equal to the height of the blade.

Abstract: A molding element of a mold for molding and vulcanizing a tire tread, this tread comprising a tread surface intended to come into contact with the ground when the tire is running. The molding element comprises a molding surface intended to mold part of the tire tread surface and a blade of length L and of height H intended to mold a sipe or a groove in the tread. This blade comprises a rounded end extending along the length of the blade in a direction of extension X. The molding element further comprises two cutting means positioned on either side of the blade at a certain distance from this blade. Each cutting means comprises a cutting edge extending in the direction of extension, this cutting edge making an acute angle in a cutting plane perpendicular to this direction of extension, the height of this cutting edge being greater than or equal to the height of the blade.

Abstract: Road-going assembly consisting of a vehicle comprising a front axle and a rear axle, and of a set of tires which are mounted on their mounting rim in order to be fitted to the front axle and the rear axle of this vehicle, the tires of the rear axle having grooves the mean depths of which are at least equal to 3 mm and at most equal to 5 mm, the tires of the front axle having grooves the mean depths of which are greater than 5 mm, this road-going assembly having, at least in the case of the rear axle, static setups (camber, toe-in) of close to zero, that is to say a camber of each wheel-tire assembly on the said axle of between ?0.8 degrees and +0.8 degrees and a toe-in at each wheel of between ?0.15 degrees and +0.15 degrees, the static setups of the tires of one and the same axle being equal in terms of absolute value and symmetric with respect to a plane perpendicular to the road surface.

Abstract: A molding element) of a mold for molding and vulcanizing a tire treadcontaining a molding surface intended to mold part of the tread surface of the tire and a complex blade of projecting from the molding surface, containing a body oriented mainly in a circumferential direction X and at least one U-shaped secondary branch facing towards this body, the secondary branch being oriented mainly in an oblique direction J, J making a non-zero angle ? with a transverse direction Y perpendicular to the circumferential direction X, the secondary branch in contact with the main body at two contact zones to delimit a cavity of length L, wherein the molding element has a main cutting means projecting from the molding surface, extending between two of its ends and running parallel to J, the length being less than the length L, and wherein the molding element has at least two secondary cutting means of height Hs extending from one of the ends of the main cutting means as far as one of the contact zones facing this end, and f

Abstract: Method of manufacturing a tire tread having a plurality of raised elements, each having a contact face intended to come into contact with a ground when the tire is rolling and lateral faces connected to this contact face. The method of manufacture comprises: preparing a green form of the tire; laying a cover layer over all or part of an external surface of the green tire; laying the green tire in a mold; with the mold comprising a blade, using this blade to mold a lateral face of a raised element; vulcanizing the green tire to obtain the tire cutting the cover layer using cutting means belonging to the mold; during the molding of the lateral face driving with the blade a cut part of the cover layer into the green tire so that the lateral face of the raised element is partially or fully covered.

Abstract: A molding element for molding and vulcanizing a tire tread. This tread comprises a tread surface intended to come into contact with the ground when this tire is running. This molding element comprises a molding surface intended to mold part of the tire tread surface and a blade of length L and of height Hc intended to mold a sipe or a groove in the tread, the blade comprising a rounded end extending along the length of the blade in a direction of extension X. The molding element comprises two cutting means positioned on either side of the blade at a certain distance from this blade. Each cutting means comprises, at one end, an alternation of peaks and troughs extending in this direction of extension X. The distance of these peaks in relation to the molding surface is greater than or equal to the height Hc of the blade.

Abstract: A tire tread having: a plurality of tread pattern elements comprising lateral faces and a contact face which is intended to be in contact with the road surface when a tire provided with this tread is being driven on, the extent of the contact between the contact face and the ground forming at least one edge corner, a plurality of cuts in the form of grooves and/or sipes, said cuts being delimited by opposing lateral faces, each tread pattern element being formed with at least one first rubber compound (referred to as “base compound”), this tread having, viewed in section in a plane containing the thickness of the tread, at least one face delimiting at least one cut covered at least in part with a layer of a covering material, this tread being characterized in that the covering material is a thermoplastic material.

Abstract: According to one aspect, the shoe sole (10) comprises at least one main ground engagement section (22) specifically designed to respond to certain modes of solicitation by the foot of the player. Such section is provided with a sculpted pattern having recesses (102) and solid areas (100). The recesses and solid areas are distributed to minimize pressures or stress differences throughout the ground engagement section concerned so as to provide better adherence and lower wear by abrasion in response to such mode of solicitations. Preferably this arrangement is applied to more than one main ground engagement section (22, 24, 42, 44) in the shoe sole, each of which offers a specific response to a particular mode of solicitation by a player in action. According to a preferred embodiment the recesses are made of elongated cells opening (102) in a corresponding solid area through an elongated aperture (101) with rounded ends (108). The application of these principles to the production of a tennis shoe is described.

Abstract: A method for determining the trajectory of a ballistic missile using elevation and azimuth angle measurements comprises a step for determining, at different instants when the ballistic missile is in unpropelled exoatmospheric phase, an azimuth angle and an elevation angle of the ballistic missile, and a step for determining positions in three dimensions of the ballistic missile at said instants from the various pairs of angles and from a kinematic non-braked ballistic trajectory model.

Abstract: Road-going assembly consisting of a vehicle comprising a front axle and a rear axle, and of a set of tires which are mounted on their mounting rim in order to be fitted to the front axle and the rear axle of this vehicle, the tires of the rear axle having grooves the mean depths of which are at least equal to 3 mm and at most equal to 5 mm, the tires of the front axle having grooves the mean depths of which are greater than 5 mm, this road-going assembly having, at least in the case of the rear axle, static setups (camber, toe-in) of close to zero, that is to say a camber of each wheel-tire assembly on the said axle of between ?0.8 degrees and +0.8 degrees and a toe-in at each wheel of between ?0.15 degrees and +0.15 degrees, the static setups of the tires of one and the same axle being equal in terms of absolute value and symmetric with respect to a plane perpendicular to the road surface.

Abstract: This adhesion chain for the wheel of a motor vehicle comprises an adhesion tread intended to be in contact with at least the tread of the wheel concerned, and kept in place by means of respectively external and internal tensioning cables. The adhesion tread consists of a net prepared from textile material, said net being prepared by knitting of cords themselves prepared by knitting, so as to define the meshes of said net, and in that the cords include a reinforcing core from a high-modulus material.

Abstract: According to one aspect, the shoe sole (10) comprises at least one main ground engagement section (22) specifically designed to respond to certain modes of solicitation by the foot of the player. Such section is provided with a sculpted pattern having recesses (102) and solid areas (100). The recesses and solid areas are distributed to minimize pressures or stress differences throughout the ground engagement section concerned so as to provide better adherence and lower wear by abrasion in response to such mode of solicitations. Preferably this arrangement is applied to more than one main ground engagement section (22, 24, 42, 44) in the shoe sole, each of which offers a specific response to a particular mode of solicitation by a player in action. According to a preferred embodiment the recesses are made of elongated cells opening (102) in a corresponding solid area through an elongated aperture (101) with rounded ends (108). The application of these principles to the production of a tennis shoe is described.

Abstract: This adhesion chain for the wheel of a motor vehicle comprises an adhesion tread intended to be in contact with at least the tread of the wheel concerned, and kept in place by means of respectively external and internal tensioning cables. The adhesion tread consists of a net prepared from textile material, said net being prepared by knitting of cords themselves prepared by knitting, so as to define the meshes of said net, and in that the cords include a reinforcing core from a high-modulus material.

Abstract: A tire tread comprising a tread pattern composed of a plurality of elements in relief in the form of blocks and/or ribs defined by grooves. A plurality of these elements in relief are provided with at least one incision oriented at an average orientation defined as being the angle between a straight line passing through the ends of the incision on the running surface and the transverse direction of the tread, each incision being limited by walls of rubber mix and comprising at least two portions the average orientations of which, measured relative to the transverse direction, are different from the average orientation of the incision. On at least some of said portions having an orientation different from the average orientation of the incision, there is formed, on at least one of the walls defining the incision, at least one protuberance locally reducing the width of the incision by at least 50% of its greatest width (E).