Abstract: A process for manufacturing tyres for vehicle wheels, comprising the step of building on a forming support a carcass structure comprising at least one carcass ply and, at at least one end edge of the carcass ply, at least one annular anchoring structure comprising at least one substantially circumferential annular insert and at least one filling insert associated to said at least one substantially circumferential annular insert. The step of building the carcass structure comprises the steps of positioning the annular anchoring structure on the carcass ply by moving the annular substantially circumferential insert into contact with an end edge of the carcass ply by means of a special positioning member, pulling down the filling insert on the end edge of the carcass ply and turning up a free end portion of the end edge of the carcass ply so as to form a turned up end portion of the carcass ply including said annular anchoring structure.

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: 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 tire includes a circumferential tread extending in a circumferential direction circumscribing an axis of rotation. The circumferential tread includes a transverse groove having a plurality of protrusions protruding from a bottom portion of the transverse groove. One or more of a depth, a width, and a length of the transverse groove decreases in a direction parallel to the axis of rotation. The plurality of protrusions are circumferentially spaced apart across the bottom portion of the transverse groove.

Abstract: A method for manufacturing a tire (1) equipped with a communication module (20) consists in successively, and in the order required by the architecture of said tire, laying rubber products, notably profiled elements (50) and reinforcing elements on a given support in order to yield a green tire (1), then in vulcanizing the green tire to yield a tire (1), wherein, prior to laying one of the rubber profiled elements (50) on the green tire, a slot (52) is created starting from a surface of the rubber profiled element (50) and the communication module (20) is introduced into the slot (52).

Abstract: In a pneumatic tire, an inner shoulder land portion includes shoulder lug grooves that extend in the tire lateral direction. Additionally, an inner second land portion includes the through lug groove that extends through the inner second land portion in the tire lateral direction. A center land portion includes a single circumferential narrow groove extending in the tire circumferential direction and center lug grooves that each open at one end portion to the edge portion on the vehicle width direction inner side of the center land portion and terminate at the other end portion, communicating with a circumferential narrow groove. The shoulder lug groove, the through lug groove, and the center lug groove form one communication lug groove extending continuously from a tire ground contact edge toward a tire equatorial plane.

Abstract: An envelope spreader system includes a chassis having an opening, a linkage assembly comprising a plurality of links rotatably coupled to the chassis and extending into the opening, and an actuator operably coupled to the linkage assembly and configured to operate the linkage assembly between a first position and a second position. The plurality of links includes a primary link having a primary link first end rotatably coupled to the chassis at a first fixed pivot point and a primary link second end configured to operably engage a portion of a tire envelope and a secondary link having a secondary link first end rotatably coupled to the chassis at a second fixed pivot point and a secondary link second end configured to engage a portion the tire envelope.

Abstract: A method for manufacturing a tire (1) equipped with a communication module (20) consists in successively, and in the order required by the architecture of said tire, laying rubber products, notably profiled elements (50) and reinforcing elements on a given support in order to yield a green tire (1), then in vulcanizing the green tire to yield a tire (1), wherein, prior to laying one of the rubber profiled elements (50) on the green tire, a slot (52) is created starting from a surface of the rubber profiled element (50) and the communication module (20) is introduced into the slot (52).

Abstract: A tire includes shoulder main grooves, circumferential narrow grooves disposed between the shoulder main grooves and each having a groove width of 0.5 mm to 3.0 mm, and five or more rows of land portions defined by the shoulder main grooves and the circumferential narrow grooves. A first land portion includes S-shaped sipes that extend through the first land portion in a width direction. A second land portion includes S-shaped sipes that extend through the second land portion in the width direction, and the second land portion is a rib including a continuous road contact surface in a tire circumferential direction when the tire comes into contact with the ground. Connection portions of the S-shaped sipes of the first and second land portions with respect to the circumferential narrow grooves are at identical positions in the tire circumferential direction.

Abstract: A mold segment for forming a tire is provided that has a first sipe element (12) with a narrow section (14) and a teardrop section. The first sipe element has a female connector (18). A second sipe element (20) is present that has a narrow section (22) and a teardrop section. The second sipe element has a male connector (26). A mold segment base is present that receives the first sipe element and the second sipe element, and the female connector of the first sipe element receives the male connector of the second sipe element.

Abstract: A tire having a radial carcass reinforcement, made up of a single layer of reinforcing elements anchored in each of the beads by being turned up around a bead wire, reinforced by a stiffener.

Abstract: A tread portion of a pneumatic tire includes: an intermediate land portion being delimited by an inner circumferential main groove and an outer circumferential main groove on one side in a tire lateral direction across a tire center line as a boundary; and a side land portion adjoining the outer circumferential main groove and being provided outward of the outer circumferential main groove in the tire lateral direction. At least one land portion of the intermediate land portion and the side land portion has a swelling profile line. In a region of the land portion, a composite sipe is provided. In the composite sipe, a first sipe extending linearly in a sipe depth direction and a second sipe (S2) extending in a wave manner in the sipe depth direction are connected. The second sipe in the composite sipe is disposed so as to be connected to the outer circumferential main groove.

Abstract: A method of assembling spokes into a non-pneumatic tire (10) is provided in which a shear band (16) is located outward from a hub (12) in a radial direction. A segment (20) is present that has a plurality of spokes (22), and both inner and outer radial bonding ends (24, 26). The plurality of spokes (22) engage both of these bonding ends (24, 26). The outer radial bonding end (24) is attached to the shear band (16) using adhesive (28), and the inner radial bonding end (26) is attached to the hub (12) using adhesive (28). This segment (20) extends less than 360 degrees about the central axis (14) in a circumferential direction.

Abstract: A tire includes a circumferential narrow groove disposed in a tread portion center region and having a groove width of 0.5 mm or more and 3.0 mm or less, and a first land portion defined by the circumferential narrow groove and a second land portion located further on a tire equatorial plane side than the first land portion and adjacent to the first land portion. Additionally, the first and second land portions include chamfered portions, respectively in edge portions on the circumferential narrow groove side. Additionally, a circumferential length L33 of the chamfered portion of the second land portion has the relationship L33<L24 with respect to a circumferential length L24 of the chamfered portion of the first land portion.

Abstract: A pneumatic tire having lug grooves in shoulder land portions that each include one end reaching at least a ground contact edge and an other end terminating in the shoulder land portion. Sipes in the shoulder land portions each include one end communicating with a shoulder main groove and an other end terminating in a ground contact region. Lug grooves in intermediate land portions each include one end communicating with the shoulder main groove and an other end terminating in the intermediate land portion. Sipes in the intermediate land portion each include one end communicating with a center main groove and an other end terminating in the intermediate land portion. Sipes in the center land portion each include one end communicating with the center main groove and an other end terminating in the center land portion without exceeding a tire center line.

Abstract: A tire includes a tread portion including a first shoulder land portion provided with first shoulder lateral grooves extending from a first tread edge to a first shoulder circumferential groove, a second shoulder land portion provided with second shoulder lateral grooves extending from a second tread edge and terminating within the second shoulder land portion, a first middle land portion provided with first middle lateral grooves extending from the first shoulder circumferential groove and terminating within the first middle land portion, a second middle land portion provided with outer and inner second middle lateral grooves respectively extending from the second crown circumferential groove and the second shoulder circumferential groove and terminating within the second middle land portion, and a crown land portion provided with crown lateral grooves extending from the first crown circumferential groove and terminating within the crown land portion.

Abstract: In a tire, first and second center land portions each include a circumferential narrow groove and first and second lateral grooves. The first and second lateral grooves of the first center land portion are disposed overlapped with each other in a tire circumferential direction. The first and second lateral grooves of the second center land portion are disposed overlapped with each other in the tire circumferential direction. The first and second lateral grooves of the first center land portion are disposed offset with respect to the first and second lateral grooves of the second center land portion in the tire circumferential direction.

Abstract: A nonpneumatic tire assembly includes an outer hoop, a plurality of loops extending inward from the outer hoop, and a hub having a plurality of members. Each of the plurality of members is connected to one of the plurality of loops.

Abstract: The invention relates to a belt and tread drum (1, 401, 501, 601), an assembly of the belt and tread drum and a pressing device and to a method for manufacturing a belt and tread package (9), wherein the belt and tread drum comprises a first support member (2), wherein the first support member (2) comprises a tread support surface (20) which faces away from the drum axis (x) for supporting the tread layer (92) where said tread layer (92) is wider than the belt layer (91), wherein the first support member (2) is positionable in a raised position outside the circumferential surface (S) in the radial direction, wherein the belt and tread drum (1, 401, 501, 601) further comprises a first retaining element (4, 404) and a second retaining element for retaining the tread layer (92) at the first support member.

Abstract: A tire includes: a pair of beads having a bead core and bead filler extending to an outer side in a tire-radial direction of the bead core; a carcass ply extending from one bead to another bead; an inner liner arranged at a tire inner cavity side of the carcass ply; and an electronic component unit pasted to a tire inner cavity side of the inner liner, in which the electronic component unit is arranged at a tire-radial direction position distanced at least 5.0 mm to the outer side in the tire-radial direction from a tire-radial direction outside end of the bead core.