Abstract: Provided is an aircraft tire which has both satisfactory light weight and satisfactory separation durability of carcass ply ends. An aircraft tire (10) includes a pair of bead cores (1), and a carcass (2) extending between the pair of the bead cores (1).

Abstract: A tire comprises a tread portion comprising at least one circumferentially continuously extending main groove, and a land portion divided by the above-said at least one main groove, wherein the land portion is provided with straight sipes and curved sipes each extending in the tire axial direction.

Abstract: In a pneumatic tire which is formed with plural shallow grooves 40 and plural recesses 32 in a tread and in which the plural shallow grooves 40 extend in parallel, the plural shallow grooves 40 form a saw teeth shape as a cross-sectional shape of the tread in a direction orthogonal to an extending direction of the shallow grooves 40, portions corresponding to apexes of the saw teeth shape are formed as edges 44, and the recess 32 is formed between the two edges 44.

Abstract: A pneumatic vehicle tire, in particular a commercial vehicle tire, having a tread with transverse grooves (3, 3?), which are continuous over the tread width and which, at least in sections, are formed to the profile depth and are the main grooves of the tread.

Abstract: A pneumatic tire includes a lug grooves extending in a shoulder region of a tread portion in a width direction up to a sidewall portion, a shoulder block and a side block defined by the lug grooves, in which the side block located outward of the shoulder block in the width direction is ridged higher than the shoulder block, at least a part of the lug grooves being each a closed lug groove closed by a ridge portion provided therein, the ridge portion being continuous to the side block located on both sides of the closed lug groove in the circumferential direction, the ridge portion including a first narrow groove with a smaller groove width and a smaller groove depth than the lug groove, extending in the width direction, and at least one end of the first narrow groove penetrating toward the closed lug groove or the sidewall portion.

Abstract: Provided is a tire capable of efficiently discharging water, which is additionally absorbed through a plurality of flow tubes, through the flow tubes and a drain tube, thereby improving wet grip performance. The tire with enhanced wet grip includes a kerf formed on a block to discharge water introduced thereinto to a groove, a drain tube formed in the kerf in its longitudinal direction and connected to the groove to discharge the water to the groove, and a flow tube formed in the kerf toward the drain tube from an inlet of the kerf, into which the water is introduced, and connected to the groove or the drain tube.

Abstract: A pneumatic vehicle tire of a radial type of construction with a profiled tread (1), sidewalls (3), bead regions (2) and an airtight inner layer (4), which forms the inner side (4a) facing the interior space of the pneumatic vehicle tire, ribs (6) being formed on the inner layer (4), having been imprinted in it by a heating bladder introduced into the interior of the tire during the vulcanizing of the pneumatic vehicle tire in a tire heating mold, and a sound absorber (5) being provided so as to extend in an annular manner on a circumferential region (4b) of the inner side (4a) opposite from the tread (1). Grooves (7) have been formed by the heating bladder at least in a partial region of the circumferential region (4b) of the inner layer (4a) on which the sound absorber (5) is provided.

Abstract: A pneumatic vehicle tire, in particular a commercial vehicle tire, includes a tread which has a profile and has at least one circumferential groove (1) which is encircling in the circumferential direction, is embodied to a profile depth (PT) and in the cross section, starting at the tread external face, is composed of three adjoining groove portions, one outer groove portion (2) that expands in a funnel-shaped manner toward the outside, one 1 mm to 3 mm wide contracted groove portion, and one inner groove portion (4) which lies radially inward, is expanded in relation to the contracted groove portion (3) and has the largest cross-sectional face of all portions, and which is delimited by two cover flanks (4a), lateral groove flanks (4?b, 4?b) that adjoin said cover flanks (4a), and a groove base (4c).

Abstract: A tire having a tread portion with: zigzag shoulder main grooves having a trapezoidal wave form comprising first and second circumferential segments and first and second oblique segments; and shoulder axial grooves extending from the shoulder main grooves beyond the tread edges. The shoulder axial grooves are respectively smoothly continued to the first oblique segments or the second oblique segments so as to form composite shoulder axial grooves whose groove widths are smoothly increased toward the axially outside of the tire.

Abstract: The curved sipe in the present invention is connected at one or both sipe end portions to a circumferential recess extending in the tire circumferential direction, an angle of the curved sipe with respect to the circumferential recess is less than 90 degrees in a curve outside direction, the curved sipe has a chamfered inclined surface portion provided in the curve outside direction of the curved sipe, the inclined surface portion is provided in a region surrounded by an inclination start line that becomes a ridge line between a surface or offset surface of the rib and the inclined surface portion, the curved sipe and the circumferential recess, gradually increases a depth from the inclination start line toward the curved sipe, and forms a straight line in sectional view by a plane perpendicular to the inclination start line.

Abstract: Tread (2) of a radial tire for a heavy vehicle. The tire alternatingly rolls in laden and unladen states on ascent and descent, respectively. Tread (2) has total width WT and comprises first median portion (21) having median width Wc, where 0.2WT?Wc?0.5WT. Tread (2) axially delimited by second and third lateral portions (22, 23) that have respective lateral widths (WS2, WS3) at least equal to 25% and at most equal to 40% of total width WT. Angle A51 of leading face (51) of every element in relief (31) of first median portion (21) is strictly less than angle A61 of trailing face (61) of said element in relief (31). Angle (A52, A53) of leading face (52, 53) of every element in relief (32, 33) of each of second and third lateral portions (22, 23) is strictly greater than angle (A62, A63) of trailing face (62, 63) of said element in relief (32, 33).

Abstract: The present invention relates to a 3D printer with an exposure system for a large-scale screen.

Abstract: A shear-controlled tire tread includes a plurality of narrow channels disposed generally perpendicular to a rolling direction. Each narrow channel includes a heel side, a toe side, and a valley connecting the heel side and the toe side, and a first plurality of ridges disposed on a heel side and a second plurality of ridges disposed on a toe side. The first plurality of ridges disposed on a heel side and the second plurality of ridges disposed on a toe side are offset and form interacting friction surfaces when a heel side of collapses toward a toe side or a toe side collapses toward a heel side.

Abstract: A pneumatic tire includes: a plurality of shoulder blocks that are provided in a side portion, defined by a shoulder main groove extending in a tire circumferential direction and a shoulder lateral groove extending in a tire width direction, and disposed side by side in the tire circumferential direction; a rib that is provided in the side portion, and extends in the tire circumferential direction along the shoulder blocks; and a projection that is provided in the side portion, and extends from the rib toward the shoulder blocks.

Abstract: A tire includes a tread having main grooves linearly continuously extending in tire circumferential direction, and a first land portion formed between the main grooves. The first land portion has first transverse grooves such that each first transverse groove is extending inclined in first direction with respect to tire axial direction and completely across the first land portion, and first blocks formed between the first transverse grooves such that one or more first blocks have a first slot extending from first side surface of the first block on one side in the tire axial direction, a second slot extending from second side surface of the first block on the opposite side in the tire axial direction, a first sipe extending from the first slot and terminating within the first block, and a second sipe extending from the second slot and terminating within the first block without intersecting the first sipe.

Abstract: The present invention relates to a tire with main kerfs and sub-kerfs, and more particularly, to a tire with main kerfs and sub-kerfs, which maintains drainage performance and running and braking performance by additionally including an auxiliary groove and improves a flow of air and drainage performance by including an auxiliary flow tube.

Abstract: A pneumatic tire has paired bead portions, paired sidewall portions, a tread portion, a plurality of lug grooves extending from a shoulder area of the tread portion to reach a buttress area of the sidewall portion, and a block defined by the plurality of lug grooves. The block includes a shoulder block provided in the shoulder area, and a buttress block provided in the buttress area. The buttress area is provided with an annular rib annularly extending along a tire circumferential direction. The lug grooves are comparted into an outside lug groove positioned in an outer side of the annular rib, and an inside lug groove positioned in an inner side of the annular rib. A widened portion is provided in at least part of the plurality of lug grooves so as to enlarge a width of the annular rib.

Abstract: A tire having four belt plies laminated at an outside circumference of the carcass. Cords at second and third belt plies among the four belt plies, as numbered from the carcass to the outside circumference, intersect, being inclined in mutually opposite fashion with respect to a tire axis. Angles of inclination with respect to the tire circumferential direction of the second and third belt plies are such that an angle at a belt end is less than an angle at a tire equator. A first mounded region that has a peak at which the angle of inclination is greater than at a periphery and that corresponds to a shoulder rib which among the plurality of ribs is provided. The peak at the first mounded region is arranged at a shoulder rib region which appears to overlap the shoulder rib as seen in plan view.

Abstract: Disclosed is a tire configured for reducing noise during running of the tire by forming a predetermined shape in a groove of the tire to reduce a peak of air column resonance sound. The tire with reduced noise includes a first protrusion formed on a sidewall of a groove, protruding in a depth direction of the groove, and dispersing sound waves generated in a tread, and a second protrusion formed on the sidewall of the groove, protruding in a longitudinal direction of the groove, and dispersing sound waves generated in the tread.

Abstract: Tread of a tire (1) for a heavy-duty vehicle of civil engineering type. The tread (2), having an axial width WT and having a radial thickness HT at least equal to 70 mm, comprises at least two circumferential grooves (3) positioned axially on each side of an equatorial plane (XZ). Each circumferential groove (3) has an axial width W and a radial depth H, such that the ratio W/H is at least equal to 0.06, the axial distance C between two consecutive circumferential grooves (3) is at least equal to 12% and at most equal to 21% of the axial width WT of the tread and each of the axially outermost circumferential grooves (3) is positioned axially, with respect to the equatorial plane XZ, at an axial distance LE at least equal to 35% of the axial width WT of the tread.