397results about "Tyre tread bands/patterns" patented technology

Provide is a technology in which a pneumatic tire for use as an on-road driving wheel has the water discharge efficiency enhanced without impairing the traction performance. Also provided is a pneumatic tire (100) for use as a driving wheel, including a tread having a directional pattern containing a plurality of width-direction grooves (11) and (12). Assuming that a half-width region of the tread, as measured from the tire equator (CL) to the tread-to-ground contact end (TE) along the surface of the tire in a cross section of the tread portion (1) in the width direction of the tire, is bisected into two regions that are referred to as the tread center portion (Tc) and the tread shoulder portion (Ts) respectively in this order from the tire equator (CL), the plurality of width-direction grooves (11) and (12) extend across the tread center portion (Tc), and have a pattern convex in the rotational direction of the tire.

A pneumatic tire is disclosed. The disclosed pneumatic tire comprises a tread having a plurality of blocks partitioned by means of first to fourth main grooves which are formed in the circumferential direction of the tire and are spaced part from each other with respect to the width direction of the tire from the inner side to the outer side thereof, thereby making contact with a road surface, wherein the tread includes an inside shoulder block, an inside middle block, a center block, an outside middle block and an outside shoulder block, which are partitioned with respect to the width direction of the tread from the inner side to the outer side thereof, the inside middle block, the center block and the outside middle block have first kerfs recessed in the depth direction from the surfaces thereof, and the inside shoulder block and the outside shoulder block have second kerfs which are recessed in the depth direction from the surfaces thereof and which have dome kerf parts provided in the middle portions thereof, the dome kerf part including a convex protrusion that convexly protrudes from one wall surface and a concave groove which is recessed from the other wall surface opposite to the one wall surface and in which the convex protrusion is inserted and accommodated.

To provide a pneumatic tire that can release static electricity accumulated on the vehicle to the road surface without compromising its worn appearance. [Solution] The pneumatic tire 1 includes a conductive thread 10 extending inward and outward in the radial direction of the tire within the tread rubber 2G, and a conductive path 30. The conductive thread 10 includes at least one exposed portion 10A exposed to the contact surface 2s and a contact portion 10B in contact with the conductive path 30. The conductive path 30 is configured to electrically conduct the conductive thread 10 and the rim R when the pneumatic tire 1 is mounted on the rim R.

The present application relates to the technical field of hard alloy, in particular to a high wear-resistant and excellent anti-skid hard alloy stud and a preparation method thereof. In view of the early failure problem of the existing WC-Co stud caused by cobalt phase pool, uneven interface wetting and nail tip rounding under the alternating impact of ice-water-sand, the tungsten carbide powder is surface modified in dopamine-acrylic acid weak acid aerobic buffer solution, then five ethoxy tantalum and oxalic acid tantalum aqueous solution are introduced in sequence, the double tantalum precursor space preset structure is formed through coordination anchoring, aging and carboxyl adsorption, and then the structure is compounded with cobalt precursor and carbon black, and then the structure is pressed and sintered in sections, so that cobalt is preferentially limited in the interface area of tungsten carbide particles and a tantalum-rich carbide hardening layer is generated; the obtained stud can maintain high wear resistance while significantly inhibiting early rounding and micro-chipping, and has excellent grip stability on ice and wet road surface.

A tire tread detection apparatus (100) and tire pressure detector setting apparatus (300) with tire tread detection function are provided. The tire tread detection apparatus (100) includes a body casing (10), a driving unit (20), a measuring member (30), a position member (40), and a sense member (60). The driving unit (20), the measuring member (30), and the positioning member (40) are connected. The driving unit (20) is applied for driving the measuring member (30) to protrude outward from the body casing (10) for measuring the tire tread depth of the tire (200). The sense member (60) generates a measurement signal corresponding to the positioning member (40), such that the measurement signal indicates a tire tread depth value. Therefore, the tire tread depth is efficiently and accurately acquired.

To provide a tire that improves wet performance while simultaneously suppressing cracking and preventing a decrease in dry performance. [Solution] The tread portion 2 is provided with a plurality of circumferential main grooves 30 that extend in the circumferential direction of the tire, a plurality of land portions 20 partitioned by the circumferential main grooves 30, a chamfered sipe 40 that is provided on the land portion 20 and has at least one end closed within the land portion 20, and has a chamfer 43 on the opening 42 to the tread contact surface 3 which is the surface of the tread portion 2, and a short shallow groove 45 that is provided on the land portion 20 on the extension of the chamfer 43 of the chamfered sipe 40, spaced apart from the chamfer 43, and has a depth from the tread contact surface 3 that is shallower than the chamfer 43.

Spike (1) for anchoring in a spike hole of a tread of a vehicle tire with a spike body (2) which has a foot flange (3), an upper body section (2c) and a spike pin (4) anchored in the spike body (2), which extends with an outer pin section (4a) beyond the upper body section (2c) of the spike body (2), wherein the spike pin (4) has three arms (4b) enclosing equal angles to each other, which extend according to the points of a three-pointed star. The upper body section (2c) of the spike body (2) is designed similarly to a hexagonal prism and has a top surface (6) that is uniformly hexagonal in plan view and an outer surface with surface elements (5) corresponding to the prism sides, between which a rounded corner region (7a, 7b) formed by further surface elements (5') is formed, to which corner regions belong three first and three second corner regions (7a, 7b) that alternate and have different interior angles (α, β).

To provide a tire that can improve resistance to uneven wear while suppressing rib tearing in the shoulder region. [Solution] A tire having a tread portion 2 having a plurality of circumferential main grooves 20 extending in the circumferential direction of the tire, and a belt layer 14 having a plurality of belt plies, wherein the belt layer 14 has a circumferential reinforcing layer 145 disposed between a pair of cross belt layers 142, 143 and formed with a width in the tire width direction narrower than the width of the cross belt layers 142, 143, and the inclination angle of the belt cord with respect to the tire circumferential direction is 5 [deg] or less, and the tread portion 2 has a shoulder portion narrow groove 60 disposed on the outside in the tire width direction of the circumferential main grooves 20 and extending in the tire circumferential direction, and the distance W from the tire equatorial plane CL to the end of the circumferential reinforcing layer 145 in the tire width direction C And the distance W from the tire's equatorial plane CL to the shoulder groove 60. N And, 0.50≦W C / W N The relationship ≤ 0.90 is satisfied.

The utility model provides a kind of ultra high performance tire pattern and tire, belong to tire technical field, including the pitch length of ultra high performance tire pattern along tire circumference distribution includes pitch A and pitch B, with tread center line as demarcation line, each pitch pattern is divided into inside pattern area and outside pattern area respectively, wherein, inside pattern block area of pitch A accounts for 66% to 68% of total area of inside pattern area of pitch A, outside pattern block area of pitch A accounts for 70% to 72% of total area of outside pattern area of pitch A;Inside pattern block area of pitch B accounts for 68% to 70% of total area of inside pattern area of pitch B, outside pattern block area of pitch B accounts for 70% to 71% of total area of outside pattern area of pitch B.The utility model ultra high performance tire pattern improves the wetland performance, grip performance and handling performance of tire under extreme driving conditions.

According to aspects of the invention, a tire for a vehicle comprising a tread is provided. The tread comprises a set of consecutive blocks arranged along a circumference of the tire, a plurality of first grooves arranged over the circumference of the tire, wherein each of the plurality of first grooves is arranged between two blocks of the set of consecutive blocks, and a plurality of sipes defining an edge ingredient, El, corresponding to the ratio between a sum of projected lengths of the plurality of sipes in an axial direction, SAP, and the circumference of the tread, C, such that EI=∑SAPC. The El is at least 2 and at most 20. The tread is made of a rubber composition having an E' @ -20°C of at least 25 MPa and at most 45 MPa.

In precured tread according to the present invention, a tapered region, in which the thickness of the precured tread gradually decreases from an inner side in a width direction toward a tread end, is formed in a shoulder region. A manufacturing method of a retreaded tire according to the present invention is a manufacturing method of a retreaded tire using the above-described precured tread.

A rubber composition comprising a rubber and diresorcinol sulfide.

To provide a pneumatic tire that can achieve a good balance of improved performance on ice and snow. [Solution] The tread 2 includes a plurality of ridges 6, including a rib-shaped central ridge 100 positioned on the tire equator E and extending continuously in an annular manner in the tire circumferential direction, and circumferential grooves 7 on both sides of the central ridge 100 in the tire axial direction, wherein the central ridge 100 has a first central sipe 110 having a portion extending in a direction intersecting the tire circumferential direction, and a second central sipe 120 having a portion extending in a direction intersecting the tire circumferential direction, the first central sipe 110 terminating within the central ridge 100, and the second central sipe 120 communicating with the circumferential grooves 7 and having a wavy shape at least on the tire surface, the total length of the second central sipe 120 on the surface of the central ridge 100 being longer than the total length of the first central sipe 110 on the surface of the central ridge 100.

The present application relates to the technical field of tire overall preparation, and proposes a variable stiffness tire and a tire overall preparation device, which can adapt to various driving conditions and realize the collaborative optimization of comfort and control performance, and the structure can effectively disperse flexural stress, and is not prone to heat accumulation, bulging and cracking, thereby significantly improving high-speed durability and load capacity, and the matching tire overall preparation device can adapt to the molding process of the tire body, effectively improve tire production efficiency and manufacturing precision, and comprises a tire body and a triangular rubber ring, wherein the tire body comprises a tread, a sidewall and an inner tire ring, the sidewall is divided into a shoulder section, a sidewall middle section and a bead section in the radial direction, the stiffness of the bead section, the shoulder section and the sidewall middle section decreases in turn, the sidewall middle section is a main flexible deformation area, the shoulder section provides lateral restraint, the bead section provides high stiffness support, the tread is fixedly connected with the shoulder section, and the inner tire ring is fixedly connected with the triangular rubber ring.

The invention relates to a vehicle pneumatic tire (1) comprising a tread (2), a carcass (3), and a belt assembly (4) with at least two superimposed belt layers made of reinforcing elements embedded in a belt rubber and running parallel to each other, wherein the belt layers have a first working layer (5) and a second working layer (6), wherein the first working layer (5) has a first section (5a) arranged radially inside the second working layer (6) and a second section (5b) arranged radially outside the first section (5a), wherein the sections (5a, 5b) of the first working layer (5) are formed in one piece via a fold (5c) arranged in the shoulder region (8) of the vehicle pneumatic tire (1), wherein the tread (2) has a radially inner first tread part (2a), a radially outer second tread part (2b), and a third tread part (2c), and wherein the tread parts (2a,2b, 2c) are made from different rubber compounds.

Provided is a motorcycle tire capable of improving traction performance and suppressing a significant decrease in slip control performance during cornering. A motorcycle tire (1). A first crown block (6) has a V-shaped leading edge (11). The leading edge (11) is inclined at an angle (α1) of 10 to 45 degrees. The total number of the first crown blocks (6) is 30 to 70% of the total number of crown blocks (4). A second tread surface shape (7a) of a second crown block (7) has a maximum length (WC) in the tire axial direction that is smaller than a first tread surface shape (6a) of the first crown block (6).

According to various aspects of the present invention, a tire for a vehicle is provided, the tire comprising a tread. The tread includes a set of continuous block patterns arranged along the circumference of the tire, each continuous block pattern comprising a block and a first groove adjacent to that block. The set of continuous block patterns includes a first subset of first block patterns having a first pitch length, a second subset of second block patterns having a second pitch length greater than the first pitch length, and a third subset of third block patterns having a third pitch length greater than the second pitch length, wherein equations (I) and (II) are provided.

A tire includes a tread portion including circumferential main grooves extending in a tire circumferential direction; and a belt layer including belt plies. The belt layer includes a circumferential reinforcing layer disposed between a pair of cross belts, having a width in a tire width direction smaller than a width of the cross belts, and having an inclination angle of the belt cords with respect to the tire circumferential direction of 5 degrees or less. The tread portion includes a shoulder portion narrow groove disposed on an outer side in the tire width direction of a circumferential main groove and extending in the tire circumferential direction. A distance WC from a tire equatorial plane to an end portion in the tire width direction of the circumferential reinforcing layer and a distance WN from the tire equatorial plane to the shoulder portion narrow groove satisfy 0.50≤WC / WN≤0.90.

The present invention aims to provide a heavy-duty tire that enhances the cooling effect of the belt through grooves in the width direction. [Solution] The heavy-duty tire of the present invention has a tread surface equipped with a plurality of widthwise grooves extending in the tire width direction, and air introduction grooves communicating with the widthwise grooves are provided in the widthwise grooves, and the widthwise grooves have a paddle groove portion in cross view consisting of a straight portion, a slanted portion connected to the straight portion, and an arc-shaped bottom portion connected to the slanted portion.

A tire tread is provided that has first and second ribs (30, 34) with first and second rib sidewalls (32, 36). The first rib sidewall and second rib sidewall define a circumferential groove (68). A groove projection (40) is located within the circumferential groove (68), and the groove projection extends for a greater distance in the thickness direction than in the lateral direction. A bumper (42, 62) is present that extends from the groove projection (40), and the groove projection (40) extends for a greater distance in the thickness direction than does the bumper (42, 62).

We offer tires with improved durability. [Solution] A pneumatic tire having a tread portion, wherein the tread portion includes a cap rubber layer including the tread contact surface and a heat dissipation rubber layer, the heat dissipation rubber layer extends in the tire axial direction while at least a portion of its entire length is in contact with the cap rubber layer and is arranged to be exposed on the tire side surface, the thermal conductivity of the heat dissipation rubber layer is greater than the thermal conductivity of the cap rubber layer, the length (mm) of the heat dissipation rubber layer is Ld, and the loss loss tangent of the heat dissipation rubber layer at 70°C is 70°C tanδ D The loss loss tangent of the cap rubber layer at 70°C is defined as 70°C tanδ. C In this case, Ld and 70°C tanδ D and 70℃ tanδ C A pneumatic tire that satisfies the relationship in equation (1). (1) Ld × (70℃ tanδ D / 70℃ tanδ C )>10

Construction vehicles operate for long periods under heavy loads, so they require features that suppress heat generation and improve wear resistance. [Solution] A rubber composition satisfying formulas (1) and (2), wherein, per 100 parts by mass of a rubber component containing 50% or more isoprene-based rubber, the total amount of carbon black and silica is 40 to 65 parts by mass, the total amount of silica and resin is 30 parts by mass or less, and the ratio of silica to resin is 1:9 to 9:1. 2.0℃≦T1-T0≦7.0℃ (1) (T1 is the peak temperature of the tanδ curve of the rubber composition, T0 is the peak temperature of the tanδ curve of the rubber composition without resin), 0.55≦P1-P 100 ≤0.90 (2) (P1 is the peak tanδ value of the tanδ curve of the rubber composition, P 100 (This refers to the tanδ value of the rubber composition at 100°C.)

A tire assembly includes: a wheel connected to a vehicle, and including a first groove formed in the wheel; a tire coupled to the wheel, and including a second groove, connected to the first groove, formed therein; and an anti-skid member including first and second end portions coupled to the wheel, and movably accommodated in the first groove and the second groove, wherein the tire includes a tread contacting with the ground and a sidewall extending from first and second sides of the tread and coupled to the wheel, wherein the tire assembly is configured to transform to a hide state in which at least a portion of the anti-skid member is located inwardly of a surface of the tread or to a pop-up state in which the at least a portion of the anti-skid member protrudes from the surface of the tread.

Provided is a pneumatic tire comprising a carcass, a reinforcing layer, and a cap tread, wherein A1, A2, W1, W2, 30°C E*c and K satisfy the following inequalities: A2−A1>0;W1 / W2>0.30;and30°CE*c>K / A2−A1×W1−0.3×W2 where A1 represents an angle of carcass cord inclined from the tire circumferential direction on the tire center line, A2 represents an angle of carcass cord inclined from the tire circumferential direction at a tire maximum width position, W1 represents a land part width of a land part closest to the tire center line among the land parts, W2 represents a land part width of a land part adjacent to an outer side in a tire axial direction of the land part closest to the tire center line, 30°C E*c represents a complex elastic modulus at 30°C of the cap tread, and K represents a constant.

The application discloses a tire for all-terrain ATV, comprising a tire body, a tire tread of the tire body is composed of side grooves and middle grooves, the side grooves are composed of first block rings, the middle grooves comprise main grooves and main side grooves, the main side grooves are arranged on both sides of the main grooves, the main grooves are gear-shaped annular patterns connected head to tail, the main side grooves are composed of second block rings, equal intervals are formed between the side grooves and the main side grooves and between the main side grooves and the main grooves, first openings are formed at groove corners of the main grooves, and prismatic blocks are formed at the first openings, so that the tire has improved ground adhesion, especially excellent climbing ability, the prismatic blocks arranged at the first openings play a supporting role of the tire tread and the ground during driving, the tire has improved puncture resistance, and has certain aesthetic property.

This invention relates to the application fields of tires, rubber, and other industries, and discloses an asymmetric tire tread compound with different tread rubbers and a tire using this structure. The asymmetric tire tread compound with different tread rubbers includes a tread compound, a base compound, a shoulder compound, and a conductive adhesive. The tread compound comprises an outer tread compound and an inner tread compound, arranged sequentially from left to right. The tread compound and the base compound are arranged sequentially from the outside to the inside to form the tread layer. The shoulder compound is located on both lateral sides of the tread layer, and the conductive adhesive is located at the center of the tread layer, penetrating the tread compound and the base compound from the outside to the inside. Applying this to tires ensures that the outer tread of the asymmetric tire has strong grip and good handling stability, while the inner tread offers superior comfort. Overall, the dry and wet braking and handling performance of the tire is superior to that of traditional asymmetric treads.