Abstract: A tire tread for a heavy-duty vehicle of construction plant type and aims to reduce the risk of cracking at the sipe bottom, without significantly reducing the volume of material of the tread so as not to shorten the lifetime of the tire in respect of wear. The tread (I) has transverse sipes (5) having a depth H and a width E, each transverse sipe (5) having a radially inner end formed by a bulge (53) having an end radius R, the transverse sipes (5) being distributed longitudinally at a longitudinal spacing B, the depth H, the width E of each transverse sipe (5), the end radius R of the bulge (53) and the longitudinal spacing B satisfying the relationship (R*B)/(E*H)>=1.8.

Abstract: A method for determining a running parameter of a vehicle travelling on a road, based on a measurement of a sound signal produced by a tire of the vehicle, and on measurements and estimations of running conditions effected in real time.

Abstract: The invention relates to an automated cell (100) for handling containers in which rubber blocks are arranged. The cell includes: a frame that allows the fixed installation of the cell; an automatic centering system having a guiding means that allows precise positioning of a loaded container in a loading space (112) of the cell; a clamping system having a holding means that maintains the positioning of the loaded container in the loading space of the cell; and a locking system having a locking means that maintains the positioning of the container in the loading space of the cell.

Abstract: A weft fabric (T) for tires (10) comprises several textile warp reinforcing elements (44) and several weft reinforcing elements (50), wherein the moisture regain MR of the weft reinforcing elements (50) is less than or equal to 2.0%, the moisture regain being determined according to standard ASTM D 885/D 885MA of January 2010 the weft reinforcing elements (50) interweave the warp reinforcing elements (44), and the weft reinforcing elements (50) are hairy.

Abstract: The rolling resistance of a tire has been improved without degrading industrial performance. The sidewall (30) consists of two sub-layers. A first sub-layer (FE1) of thickness E1 and volume V1 provides the expected protection functions of a sidewall as the outer wall of the tire, and a second sub-layer of the sidewall (FE2) of thickness E2 and volume V2 is optimized at low hysteresis to improve rolling resistance. The ratio V1/(V1+V2) of the volumes of the two sub-layers (FE1, FE2) is less than or equal to 0.3. The elongation at break of the compound of FE1 is greater than or equal to 200% measured at a temperature of 100° C., and the viscoelastic loss of the compound of FE2, Tan(?)max, is less than or equal to 0.10.

Abstract: A rubber composition having an adhesion to a composition based on natural rubber, the composition being at least based on 5 to 95 phr of polyisoprene comprising a content by weight of 1,4-cis bonds of at least 90% of the weight of the polyisoprene; 5 to 95 phr of copolymer of ethylene and of a 1,3-diene of formula CH2?CR—CH?CH2, the ethylene units in the copolymer representing more than 50 mol % of the monomer units of the copolymer, the symbol R representing a hydrocarbon chain having 3 to 20 carbon atoms; and a crosslinking system. Also disclosed is a tire, in particular a tire provided with a sidewall, comprising this composition.

Abstract: A tire (10) comprises a crown (12) comprising a tread (20), a crown reinforcement (14), two sidewalls (22), two beads (24), with each sidewall (22) connecting each bead (24) to the crown (12), the crown reinforcement (14) extending into the crown (12). The tire (10) comprises a radial carcass reinforcement (32) anchored in each of the beads (24) and extending into the sidewalls (22), and the crown reinforcement (14) is radially inserted between the carcass reinforcement (32) and the tread (20). The tire (10) has a sidewall height that is greater than or equal to 110 mm and a load index that is greater than or equal to 94. The carcass reinforcement (32) comprises a single carcass ply (34) comprising at least one reinforcer element comprising an assembly formed by: a multifilament strand made of aromatic polyamide or aromatic co-polyamide; and a multifilament strand made of polyester.

Abstract: The cutting system is configured to cut a continuous strip which extends lengthwise in a longitudinal direction and widthwise between a first edge and a second edge into strips. The cutting system includes a drive device which imparts to the continuous strip a feed speed, a first cutting roller and a contrarotating second cutting roller that cooperate to cut the continuous strip across its full width. The first cutting roller is provided with a first helical blade and is driven in rotation A variable synchronizer makes it possible to select and to modify the synchronization ratio between the rotational speed of the first cutting roller and the non-zero forward speed of the continuous strip in such a way as to be able to adjust the cutting angle according to which the cross-section of the continuous strip is oriented with respect to the longitudinal direction of the continuous strip.

Abstract: A tire tread (1) for a heavy-duty vehicle to improve resistance to attack by stones. The tread (1) in the new state having at least one complex cut (5) with, along a mean line (Lm), an alternation of external cavities (6), opening onto the tread surface (2), and internal cavities (7), not opening onto the tread surface (2), two consecutive cavities, respectively an external cavity (6) and an internal cavity (7), being connected to each other by a connecting channel (8) of non-zero length, the height (H11) of each external cavity (6) being at least equal to half the height (H) of the complex cut (5), the height (H3) of each connecting channel (8) being at most equal to one third of the height (H) of the complex cut (5).

Abstract: A piezoelectric device comprises at least one piezoelectric composite layer P inserted between two conductive composite layers E, each layer E forming an electrode, characterized in that: the layer P is a rubber composition containing more than 50 parts by weight per hundred parts by weight rubber, phr, of diene elastomer, a cross-linking system and at least 5 vol. %, in relation to the total volume of the rubber composition, of piezoelectric inorganic charges; and each layer E is a rubber composition containing at least 50 phr of diene elastomer, a cross-linking system, and conductive charges. A method for producing the device and a tire comprising the device are also disclosed.

Abstract: Method for determining the state of wear of an aeroplane tire to predict its remaining number of landings, wherein the aeroplane tire has a tread with a circumferential ridge having a wear indicator, where the method includes capturing a first positioning pattern of the wear indicator that marks the positioning of the wear indicator in the tread, capturing a second state pattern of the wear indicator that determines the state of wear of the circumferential ridge concerned at a given instant, analyzing the captured first positioning pattern and the captured second state pattern of the wear indicator, by comparison to reference patterns, determining the state of wear of the circumferential ridge at a given instant, and rendering information on the state of the tire.

Abstract: A tire comprises a sealing layer comprising a junction (21) extending in a main direction (D4) forming, with the circumferential direction (Z) of the tire: in a portion (15S) of the sealing layer extending axially in radial line with the working layer, an angle (ES) ranging, in absolute value, from 20° to 60°, and in a portion (15F) of the sealing layer extending radially in each sidewall, an angle (EF), in absolute value, strictly greater than the angle (ES) of the main direction (D4) of the junction (21) in the portion (15S) of the sealing layer extending axially in radial line with the working layer.

Abstract: A device for preventing excessive increase of an internal pressure of a rolling assembly, the rolling assembly having a rotation axis and comprising a wheel and a tire, the tire being mounted onto the wheel creating an inner cavity surrounded by a wheel internal surface and a tire internal surface, comprises a cold spot placed in the inner cavity of the rolling assembly for condensing vapor contained in a gas filled in the inner cavity.

Abstract: The tread pattern of a tire for a vehicle for agricultural use comprises two rows of lugs (R1, R2), a first row being made up of a circumferential distribution of at least two families of lugs, over one revolution of the wheel; a first family is reproduced with a shortest spacing S, and a second family is reproduced with a longest spacing L; the tread pattern of the tread is designed such that the distance between the axially outer end of a following lug and the axially inner end at the centre of the tread is referred to as the overlap distance R. The ratio of the shortest spacing S of the family of lugs to the longest spacing L, “S/L”, lies in the range [0.6; 0.8]. The circumferential overlap distance R between the first and second circumferential rows of lugs is constant around the entire circumference of the tire.

Abstract: A device for measuring an operating variable, to be fitted onto a tire, includes an electronic circuit distributed over a first face of an electronic board and including a sensor, a protective housing at least partially covering the electronic circuit and at least one first antenna wire having one end galvanically connected to the electronic circuit and integrally extending so as to project laterally from the housing. The housing includes a lateral portion which projects substantially tangentially to a proximal end portion of the first wire in accordance with the generatrix of the first wire.

Abstract: A rubber composition contains: an elastomer matrix comprising at least one diene elastomer comprising epoxide functions, at least one reinforcing filler, and a system for crosslinking the polymer, comprising at least one organopolyphosphorus compound of general formula (I) in which A represents a covalent bond or a hydrocarbon group comprising at least 1 carbon atom, which is optionally substituted and which optionally comprises one or more heteroatoms, and the Rs represent, independently of one another, a hydrocarbon group comprising at least 1 carbon atom or a hydrogen atom.

Abstract: A fuel cell membrane electrode assembly includes a substrate and a porous polymer membrane. The substrate includes a woven layer including a yarn of polyvinylidene fluoride (PVDF) fiber. The yarn is 7 to 25 denier. The substrate also includes a nanofiber layer including PVDF nanofibers deposited on the woven layer. The nanofiber layer is 1 to 10 micrometers (?m) thick. The substrate exhibits a porosity of at least 70 percent and is less than 30 ?m thick. The porous polymer membrane is deposited on the nanofiber layer. The substrate is a porous support for a fuel cell membrane. A method of forming a fuel cell membrane electrode assembly includes weaving a woven layer of a yarn including fiber of PVDF. The method also includes depositing a nanofiber layer on the woven layer to form a substrate. The method further includes depositing a porous polymer membrane on the nanofiber layer.

Abstract: A device (100) for forming a complex product of a profiled product produces a complex product from non-protruding rubber layers. There is also a process for forming a complex product of a profiled product from non-protruding rubber layers, performed by the disclosed device (100). A tire production line can include at least one installation (500) having the device (100).

Abstract: A method for obtaining the deformation of a tire casing subjected to a load, rotating at a rotational speed W, comprising: Phase 1—Delimiting the first signal over a whole number of wheel revolutions to construct a first wheel revolution signal; and Determining a reference acceleration; and Phase 2—Delimiting the signal over a whole number of wheel revolutions to construct a second wheel revolution signal; Defining at least a first energy density S which is a function of the second wheel revolution signal, and of the reference acceleration, and which is denoted S+ when the wheel revolution signal is above a threshold value A, or is denoted S? when the wheel revolution signal is below or equal to said threshold value A; and Identifying the deformation as a function of the reference acceleration and of the first energy density S.

Abstract: A tire tread comprises a rubber composition based on at least from 50 to 100 phr of a first diene elastomer, the first diene elastomer being a polybutadiene-based elastomer, modified with a functional group capable of interacting with silica as reinforcing filler; optionally from 0 to 50 phr of a second diene elastomer; at least 20 phr of carbon black; less than 40 phr of silica as reinforcing filler; a coupling agent; a plasticizing system comprising a plasticizing resin exhibiting a glass transition temperature of greater than 20° C.; and a crosslinking system based on organic peroxide; the total content of the first diene elastomer and of the second diene elastomer in the composition being within a range extending from 80 to 100 phr.