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188results about "Motorcycle tyres" patented technology
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Two-wheeled vehicle tire for running on rough terrain
The present disclosure is a two-wheeled vehicle tire for running on rough terrain having a tread portion. The tread portion includes a first tread edge, a second tread edge, a tread development width, a tire equator, a crown region, and side regions. The tread portion includes a plurality of crown blocks and a plurality of outer blocks. Each of the outer blocks has a ground contacting surface at least provided with a narrow groove or configured as a stepped surface including a base surface and a protruding surface locally protruding outward in a block height direction with respect to the base surface. Each of the crown blocks has a ground contacting surface provided with the narrow groove and configured as a non-step surface without the protruding surface.
Owner:SUMITOMO RUBBER INDUSTRIES LTD
Pneumatic tyre for a two-wheeled vehicle
A two-wheeled vehicle pneumatic tire having a tread, a tire carcass, tire sidewalls, and two bead regions with a bead protective strip. The tire carcass is formed from a first carcass inlay and a second carcass inlay. The second carcass inlay is arranged radially inwardly of the first carcass inlay, and extends from a crown region (17) of the two-wheeled vehicle pneumatic tire and terminates at a second carcass inlay end under the bead protective strip. The two-wheeled vehicle pneumatic tire provides improved puncture protection whilst maintaining good rolling resistance. This is achieved in that the first carcass inlay is guided with a first carcass inlay turn-up over the particular tire sidewall as far as under the tread to a first carcass inlay end, and terminates there at the first carcass inlay end.
Owner:CONTINENTAL REIFEN DEUTSCHLAND GMBH
Two-wheeled vehicle tire for off-road travel
To provide a two-wheeled vehicle tire for off-road travel that can exhibit excellent roll characteristics while maintaining shock absorbency.SOLUTION: The present invention relates to a two-wheeled vehicle tire for off-road travel having a tread part 2. The tread part 2 includes a first tread end T1, a second tread end T2, a tread development width TWe, a tire equator C, a crown area 6, and a side part area 7. The tread part 2 includes a plurality of crown blocks 10, and a plurality of outer blocks 20. Each tread of the plurality of outer blocks 20 has a narrow groove formed therein, or is a step surface 25 including a base surface 26, and a projection surface 27 which is locally projects to an outer side in a block height direction with respect to the base surface 26. Each tread of the plurality of crown blocks 10 has a narrow groove 15 formed therein, or is a step surface 28 with no projection surface 27.SELECTED DRAWING: Figure 2
Owner:SUMITOMO RUBBER INDUSTRIES LTD
Reinforcement of polymers with shape memory alloy elements
Shape memory alloy elements (“SMAs”) are bonded, encased, or encapsulated with one or more polymers to form an integrated component with unique elastic, pseudoelastic, and load-bearing properties.
Owner:THE SMART TIRE CO INC
Motorcycle tire
To provide a motorcycle tire which further improves on-road performance and off-road performance.SOLUTION: Provided is a motorcycle tire 1 having a bias structure. Two carcass plies respectively include a plurality of carcass cords inclining at an angle of 20 degrees or more but less than 70 degrees relative to the tire circumferential direction. A tread part 2 comprises: a plurality of lateral grooves 11 extending between tread ends Te of both sides; and a crown block 15 formed between the lateral grooves 11 adjacent in the tire circumferential direction. A length Wc in the tire axial direction of the crown block 15 is 30% or more of a tread development width TW.SELECTED DRAWING: Figure 1
Owner:SUMITOMO RUBBER INDUSTRIES LTD
Pneumatic tire
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.
Owner:BRIDGESTONE CORP
Motorcycle tire
To provide a motorcycle tire capable of increasing vibration absorbability to improve steering stabilizing performance while maintaining high rigid feeling during traveling.SOLUTION: A motorcycle tire 1 comprises an installation rubber layer 10 disposed between a body 6a of a carcass ply 6A and an inner liner layer 9. The installation rubber layer 10 extends from a first end 10e of a tread 2 side to at least a bead core 5. A side wall 3 includes an outermost end t1 of the tire in a radial direction in which a normal rim R comes into contact with a tire outer surface 1s of the side wall 3. The tire outer surface 1s of the side wall 3 is provided with a side profile 3S which occupies, from a tread end Te, to 90% or more of a tire radial length La between the tread end Te and the outermost end t1. The side profile 3S is linear or a circular arc in which a curvature radius r1 is 55 mm or larger and which is projected inside in a tire axial direction.SELECTED DRAWING: Figure 1
Owner:SUMITOMO RUBBER INDUSTRIES LTD
Motorcycle tire
To provide a motorcycle tire enhanced in steering stability, particularly, the feeling of falling during rolling. A motorcycle tire in which a directional pattern including at least one center main groove 11 is provided on a tread surface portion. A negative rate of the entire tread surface portion is 10% or less, and a ratio Gs / Gc between shear rigidity Gs at a position of 1 / 4 of a tread width TW from a tread edge TE as measured in a tire width direction and shear rigidity Gc at a position of 1 / 2 of a tread width TW from a tread edge TE as measured in a tire width direction, in the tread surface portion, is 95% to 100%.
Owner:BRIDGESTONE CORP
Pneumatic tire
Owner:SUMITOMO RUBBER INDUSTRIES LTD
Pneumatic tire
Owner:SUMITOMO RUBBER INDUSTRIES LTD
Motorcycle tire
A motorcycle tire (1) includes crown blocks (4) including first crown blocks (6) and second crown blocks (7). Each of the first crown blocks (6) has a heel-side edge (11) formed in a V-shape and inclined at an angle (α1) of 10 to 45 degrees on both axial sides with respect to the tire axial direction. A total number of the first crown blocks (6) is in the range from 30% to 70% of a total number of the crown blocks (4). Each of the second crown blocks (7) has a second ground contacting surface shape (7a) having a maximum length (WC) in the tire axial direction smaller than a maximum length (W1) in the tire axial of the first ground contacting surface shape (6a) of each of the first crown blocks (6).
Owner:SUMITOMO RUBBER INDUSTRIES LTD
Two-wheel vehicle tire
A two-wheel vehicle tire (1) has a tread portion (2). The tread portion (2) includes a plurality of grooves (8). The grooves (8) include crown grooves (10) arranged on a tire equator (C), middle grooves (20), and shoulder grooves (30). Each of the crown grooves (10) is bent in a V-shape so as to be convex to one side in a tire circumferential direction. Each of the grooves (8) has the shortest distance (L1) from 5% to 30% of a tread development half width (TWh) between another one of the grooves (8) immediately adjacent to the each of the grooves (8).
Owner:SUMITOMO RUBBER INDUSTRIES LTD
tire
It is an object of the present invention to provide a tire enabling improvement of interfacial peeling resistance of a tread. Provided is a tire comprising a tread part, wherein a tread surface of the tread part comprises a plurality of grooves, wherein the tread part comprises a crown part located in the center in a tire width direction, and a pair of shoulder parts located on outer sides of the crown part in the tire width direction, wherein each of the crown part and the shoulder parts is composed of a rubber composition comprising a rubber component and a filler, wherein a rubber composition constituting the crown part comprises 70 parts by mass or more of silica based on 100 parts by mass of the rubber component, wherein a content of carbon black in a filler contained in a rubber composition constituting the shoulder parts is 50% by mass or more, and wherein a product of SSH / SCR and G ((SSH / SCR)×G) is 15.0 or less, where a toluene swelling ratio of the rubber composition constituting the crown part is referred to as SCR, in %, a toluene swelling ratio of the rubber composition constituting the shoulder parts is referred to as SSH, in %, and a thickness of the tread is referred to as G, in mm.
Owner:SUMITOMO RUBBER INDUSTRIES LTD
Quick warm-up tires
The present invention relates to a tire for use on asphalt pavements having a tread surface (16) having a continuously smooth portion (20). The or each continuously smooth portion (20) has a plurality of recesses (26) and a plurality of protrusions (28). The recesses (26) and protrusions (28) are arranged such that, when the continuously smooth portion (20) runs over a road surface, the average protrusion crest pressure exerted, on average, by the road surface on the crests (32) of the protrusions (28) is strictly greater than the average recession base pressure exerted, on average, by the road surface on the bases (30) of the recesses (26).
Owner:MICHELIN & CO (CIE GEN DES ESTAB MICHELIN)
Big enduro motorcycle tires
The present invention relates mainly to a big enduro type motorcycle tire for off-road use. By virtue of a specific "cap and base" configuration of the tread band and of the specific mechanical properties of the compounds constituting it, the tire according to the invention improves the performance both on dry and wet surfaces, both in off-road and road driving.
Owner:PIRELLI TYRE SPA
Motorcycle tire
To provide a motorcycle tire enhanced in steering stability, particularly, the feeling of falling during rolling. A motorcycle tire in which a directional pattern including at least one center main groove 11 is provided on a tread surface portion. A negative rate of the entire tread surface portion is 10% or less, and a ratio Gs / Gc between shear rigidity Gs at a position of ¼ of a tread width TW from a tread edge TE as measured in a tire width direction and shear rigidity Gc at a position of ½ of a tread width TW from a tread edge TE as measured in a tire width direction, in the tread surface portion, is 95% to 100%.
Owner:BRIDGESTONE CORP
Motorcycle tyre
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).
Owner:SUMITOMO RUBBER INDUSTRIES LTD
Motorcycle tire set
A motorcycle tire set S includes a front wheel tire S1 and a rear wheel tire S2 each provided with a plurality of inclined grooves 3. Each inclined groove 3 includes a first portion 11 extending in a crown region Cr, a second portion 12 extending in a shoulder region Sh, and a third portion 13 connecting the first portion 11 and the second portion 12. The third portion 13 has a smaller groove width than the first portion 11 and the second portion 12. The first portion 11, the second portion 12, and the third portion 13 are inclined in the same direction with respect to a tire circumferential direction. Each inclined groove 3 of the rear wheel tire S2 comes into contact with the ground from the first portion 11 toward the third portion 13 based on a tire rotation direction R.
Owner:SUMITOMO RUBBER INDUSTRIES LTD
Elastomeric compound for tread band of a tyre and relative tyre
The present invention relates to an elastomeric compound for tyres for vehicle wheels, in particular an elastomeric compound for tread band of a tyre, preferably for big enduro motorcycles. By virtue of the use of special diene elastomeric polymers in admixture, preferably associated with liquid polymers, the elastomeric compound incorporated in the tread band gives the tyre long mileage together with high handling, especially in wet conditions.
Owner:PIRELLI TYRE SPA
Two-wheeled vehicle tire for running on rough terrain
A two-wheeled vehicle tire for running on rough terrain includes a tread portion having a designated rotation direction. The tread portion includes at least one first block. The first block includes a pair of block pieces adjacent to each other in the tire axial direction, and a tie-bar connecting the block pieces. The tie-bar has an outer surface in the tire radial direction, and the outer surface of the tie-bar has a height increasing toward the trailing side in the rotation direction. The pair of block pieces each has an outer surface in the tire radial direction, and the outer surface of each block piece has an axially extending leading edge located on the leading side thereof. The leading edge of each block piece is inclined toward the trailing side in the rotation direction from the end on the tie-bar side outwardly in a block-width direction.
Owner:SUMITOMO RUBBER INDUSTRIES LTD
Inflation valve comprising ball valve for tubeless tires
The invention relates to an inflation valve for use with a tubeless tire, the inflation valve comprising a ball valve. The ball valve optionally includes a housing in which a ball is disposed, the ball forming a through-hole, the ball being rotatable between an open position in which air and / or sealant are permitted to flow through the through-hole and a closed position in which air and / or sealant are permitted to flow through the through-hole, the ball being rotatable between an open position in which air and / or sealant are permitted to flow through the through-hole and a closed position in which air and / or sealant are permitted to flow through the through-hole. Air and / or sealant are substantially prevented from flowing through the through-hole.
Owner:亚历克斯·特里内尔
Motorcycle tire
A motorcycle tire includes an insulation rubber layer disposed between a main body portion of a carcass ply and an inner liner layer in each axial half of the motorcycle tire. The insulation rubber layer extends from a first end on a tread portion side at least to a bead core. A sidewall portion includes an outermost end in the tire radial direction of an area of a tire outer surface of the sidewall portion contacting a standard rim. The tire outer surface has a side profile occupying 90% or more of a length in the tire radial direction between the tread edge and the outermost end from the tread edge. The side profile is a linear line or an arc concave axially inward and having a radius of curvature of 55 mm or more.
Owner:SUMITOMO RUBBER INDUSTRIES LTD
Tire of two-wheeled vehicle for running on uneven ground
The invention provides a two-wheeled vehicle tire used for running on rough ground, which can maintain impact absorption performance and simultaneously exert excellent roll characteristics. The present invention is a two-wheeled vehicle tire having a tread portion (2) for running on rough ground. The tread portion (2) includes a first tread end (T1), a second tread end (T2), a tread spread width (TWe), a tire equator (C), a crown region (6), and a side region (7). The tread portion (2) includes a plurality of crown blocks (10) and a plurality of outer blocks (20). The tread surface of each of the plurality of outer blocks (20) is a stepped surface (25) in which at least a narrow groove is formed or which includes a base surface (26) and a protruding surface (27) that partially protrudes outward in the block height direction with respect to the base surface (26). The tread surface of each of the plurality of crown blocks (10) is a non-stepped surface (28) in which a narrow groove (15) is formed and which does not have a protruding surface (27).
Owner:SUMITOMO RUBBER INDUSTRIES LTD
Motorcycle tire
A motorcycle tire includes a tread portion between a pair of tread edges. The tread portion includes a tread rubber forming a tread surface. The tread rubber includes a first rubber layer comprising a first rubber and forming the tread surface, and a second rubber layer comprising a second rubber and being adjacent inwardly in a tire radial direction of the first rubber layer. A loss tangent tan δa of the first rubber at 100 degrees C. is smaller than a loss tangent tan δb of the second rubber at 100 degrees C. A glass transition temperature of the first rubber is lower than a glass transition temperature of the second rubber.
Owner:SUMITOMO RUBBER INDUSTRIES LTD
Motorcycle tires
To provide a motor cycle tire in which steering stability, particularly, a falling feeling at the time of rolling is improved.SOLUTION: Provided is a motor cycle tire in which a directional pattern including at least one center major groove 11 is provided in a tread part. A negative ratio in the entire tread part is equal to or less than 10%. In the tread part, a ratio Gs / Gc of shearing rigidity Gs measured in a tire width direction at a 1 / 4 position of a tread width TW from a tread end TE and shearing rigidity Gc measured in the tire width direction at a 1 / 2 position of the tread width TW from the tread end TE is 95% to 100%.SELECTED DRAWING: Figure 1
Owner:BRIDGESTONE CORP
A tire that can achieve improved rigidity and reduced noise.
ActiveJP7843828B2Off-road vehicle tyresMotorcycle tyresAcoustic noise reductionMechanical engineering
To provide a tire capable of realizing improvement of rigidity and reduction of noise.SOLUTION: A tire includes a tire body and a plurality of tread pattern structures. The tire body has a tread. The plurality of tread pattern structures each have a pattern block and one or more step-wise blocks. The pattern block has a forth tread part and a back tread part. The forth tread part goes in the revolving direction of the tire, and the back tread part goes in an opposite direction to the revolving direction of the tire. The step-wise block is connected to the back tread part of the pattern block, and has a height smaller than that of the pattern block. Due to the structure feature, the tire can improve rigidity of the tread, and stability at high-speed travel via the step-wise block, and simultaneously, reduce noise caused by abrasion of the tread.SELECTED DRAWING: Figure 1
Owner:CHENG SHIN RUBBER IND CO LTD
Motorcycle front tyre
A front tyre (1) for a motorcycle wheel is described, comprising an equatorial plane (X-X) and a tread band (8) having an overall axial extension (L) and comprising a radially outer portion (11) and a radially inner portion (12) made of a first vulcanized elastomeric material, said radially outer portion comprising: a1) a central annular portion (L1) arranged astride the equatorial plane (X-X) of the tyre (1) and made of a first vulcanized elastomeric material; and a2) a pair of lateral annular portions (L2, L3) arranged on opposite sides of the central annular portion (L1) with respect to the equatorial plane (X-X) of the tyre (1) and made of a second vulcanized elastomeric material. In the tyre (1), the ratio R1 between the dynamic elastic modulus E' of the second vulcanized elastomeric material measured at 10 Hz frequency and 23°C and the dynamic elastic modulus E' of the first vulcanized elastomeric material measured at 10 Hz frequency and 23°C is comprised between 0.6 and 1.2. In the tyre (1), the ratio R2 between the loss factor of the second vulcanized elastomeric material measured at 10 Hz frequency and 70°C and the tandelt of the first vulcanized elastomeric material measured at 10 Hz frequency and 23°C is comprised between 0.6 and 1.2.
Owner:PIRELLI TYRE SPA
Motorcycle tire
A motorcycle tire (1) includes crown blocks (4) including first crown blocks (6) and second crown blocks (7). Each of the first crown blocks (6) has a heel-side edge (11) formed in a V-shape and inclined at an angle (α1) of 10 degrees or less on both axial sides with respect to the tire axial direction. A total number of the first crown blocks (6) is 30% or more of a total number of the crown blocks (4). A first ground contacting surface shape (6a) of each of the first crown blocks (6) has a maximum length (W1) in the tire axial direction from 60% to 70% of a tread width. Each of the second crown blocks (7) has a second ground contacting surface shape (7a) having a maximum length (WC) in the tire axial direction smaller than the maximum length (W1) of the first ground contacting surface shape (6a).
Owner:SUMITOMO RUBBER INDUSTRIES LTD
tire
To provide a tire that can improve dry grip performance. [Solution] A tire having a tread portion, wherein the tread portion is composed of a rubber composition comprising a rubber component, a filler, and a plasticizer, the rubber component comprising styrene-butadiene rubber, the filler comprising carbon black, and the plasticizer comprising a resin component, wherein when the radius of curvature of the tread portion at the tire equator is R (mm) and the tanδ peak temperature of the rubber composition is T (°C), T is 25.0 or greater and R / T is less than 10.0.
Owner:SUMITOMO RUBBER INDUSTRIES LTD
scooter
PendingUS20260061783A1Operating means/releasing devices for valvesMotorcycle tyresFuel tankControl cell
A scooter is provided, including a wheel(s), a gas tank, and a pressure gauge. Each wheel includes a hub and a tire. The gas tank is disposed on the hub. The pressure gauge includes a pressure measurement assembly, a valve assembly, and a pressure control assembly. The pressure measurement assembly is connected with a lumen of the tire to detect a target pressure of air in the lumen. The valve assembly is connected with the lumen and the gas tank and includes a second gas channel. The pressure control assembly is electrically connected with the pressure measurement assembly and the valve assembly, is in communication connection with a control unit of the scooter, and is configured to periodically transmit the target pressure to the control unit and control the valve assembly to open or close the second gas channel based on a target instruction sent by the control unit.
Owner:3KM PTE LTD