WO2007052701A1 - Pneu pour véhicule a deux roues - Google Patents

Pneu pour véhicule a deux roues Download PDF

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Publication number
WO2007052701A1
WO2007052701A1 PCT/JP2006/321861 JP2006321861W WO2007052701A1 WO 2007052701 A1 WO2007052701 A1 WO 2007052701A1 JP 2006321861 W JP2006321861 W JP 2006321861W WO 2007052701 A1 WO2007052701 A1 WO 2007052701A1
Authority
WO
WIPO (PCT)
Prior art keywords
tire
rubber
belt layer
pneumatic tire
tread
Prior art date
Application number
PCT/JP2006/321861
Other languages
English (en)
Japanese (ja)
Inventor
Hidemitsu Nakagawa
Original Assignee
Bridgestone Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bridgestone Corporation filed Critical Bridgestone Corporation
Publication of WO2007052701A1 publication Critical patent/WO2007052701A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C9/22—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre
    • B60C9/2204—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre obtained by circumferentially narrow strip winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/0041—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers
    • B60C11/005—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers with cap and base layers
    • B60C11/0058—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers with cap and base layers with different cap rubber layers in the axial direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/0008—Tyre tread bands; Tread patterns; Anti-skid inserts characterised by the tread rubber
    • B60C2011/0016—Physical properties or dimensions
    • B60C2011/0025—Modulus or tan delta
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C2200/00—Tyres specially adapted for particular applications
    • B60C2200/10—Tyres specially adapted for particular applications for motorcycles, scooters or the like

Definitions

  • the present invention relates to a pneumatic tire for two-wheeled vehicles excellent in handling stability performance at high speeds, and in particular, a pneumatic tire for two-wheeled vehicles excellent in handling lightness and rudder angle response and gripping force during turning. About.
  • the overall stiffness of the tire crown decreases, and the torsional rigidity of the tire crown decreases as the lateral bending rigidity of the shoulder region decreases. Angular response and lightness may be impaired, and safe driving may be hindered (steering stability may deteriorate).
  • the tread portion of the tire having a spiral belt structure is divided into three in the tire axial direction (the tread portion is divided into a central area and two side areas).
  • the ratio of loss tangent to the JIS (A) hardness and dynamic complex modulus of the tread rubber in both sides is set higher than those in the center. This reinforces the low lateral rigidity of the snail structure and secures the grip force during turning, which improves cornering force and camber thrust and excels in turning performance.
  • the object of the present invention is to improve the steering angle response and lightness of handling, as well as to secure a grip force during turning and to have excellent steering stability performance during high speed running.
  • the object is to provide a pneumatic tire for a motorcycle.
  • a pneumatic tire for a motorcycle according to claim 1 of the present invention includes a bead core embedded in a pair of left and right bead portions, and a toroid shape from one bead portion to the other bead portion.
  • a carcass having an end portion wound around the bead core and locked to the bead core and having a carcass ply force; a belt layer disposed on the outer side in the tire radial direction of the carcass; and the belt layer And a tread rubber that is disposed on the outer side in the tire radial direction and forms a tread portion that comes into contact with the road surface.
  • the central portion of the tread portion is a first rubber.
  • the both sides of the central portion are formed of a second rubber, and the boundary between the first rubber and the second rubber is harder than the second rubber.
  • the tire rotation axis is provided in the ground contact surface when parallel to the road surface.
  • the tread portion is the central portion and the side portions on both sides thereof, and the first rubber in the central portion is harder than the second rubber on the side portions on both sides.
  • This improves the lateral bending rigidity and torsional rigidity at the center, and improves the steering angle response and lightness of Improves.
  • the lateral bending rigidity of the side portions on both sides is kept low, a high grip force is secured. As a result, the steering angle responsiveness and lightness during straight running are improved, and the grip force during turning is ensured.
  • the boundary between the first rubber and the second rubber is disposed in the ground contact surface when the tire rotation axis of the tread is parallel to the road surface.
  • the discontinuity of the lateral force generation level corresponding to the camber angle at the time of turning due to the rigidity step between the first rubber and the second rubber is eliminated. For this reason, linearity of the ring and ring is ensured and the steering stability is excellent.
  • the contact surface in this claim refers to a tire contact surface when mounted on a normal rim, filled with a normal internal pressure, placed perpendicular to a flat plate in a stationary state, and a normal load is applied. This means that the distance in the tire axial direction of this contact surface is defined as the contact width.
  • Regular rim means, for example, a standard rim in the applicable size specified in the 2004 YEAR BOOK issued by JATMA.
  • Regular load and “Regular internal pressure” are also issued by JATMA. Yes Applicable size specified in the 2004 YEAR BOOK • The maximum load in the ply rating and the air pressure for the maximum load.
  • a pneumatic tire for a motorcycle according to claim 2 of the present invention is the pneumatic tire for motorcycle according to claim 1, wherein, in the cross section in the tire width direction, the width of the ground contact surface is Wl, and the width of the center portion.
  • W2 is W2, it is characterized by satisfying 0.1W1 ⁇ W2.
  • a pneumatic tire for a motorcycle according to claim 3 of the present invention is the pneumatic tire for motorcycle according to claim 1 or 2, characterized in that the cord of the belt layer also has a steel force.
  • the overall rigidity of the tire is improved, and the steering angle response and lightness are also improved.
  • the belt layer has a spiral belt structure, in addition to the grip strength due to the high grounding property due to the low lateral bending rigidity of the tire crown, which is a characteristic of the spiral belt, Since the torsional rigidity is improved by the dredge, the steering angle response and nimbleness are improved.
  • a pneumatic tire for a motorcycle according to claim 4 of the present invention is the pneumatic tire for a motorcycle according to any one of claims 1 to 3, wherein the belt layer includes one or a plurality of parallel belt layers. It is characterized by a spiral belt layer force formed by spirally winding a band-like body in which a book cord is embedded in a coated rubber.
  • the belt layer also has a spiral belt layer force, deformation (expansion) of the tire toward the outside in the tire radial direction during high-speed running is suppressed, and the ground contact shape is maintained, so that high-speed running durability is improved.
  • a pneumatic tire for a motorcycle according to claim 5 of the present invention is the pneumatic tire for motorcycle according to any one of claims 1 to 3, wherein the belt layer includes one or a plurality of parallel belt layers. It is provided between a spiral belt layer formed by spirally winding a belt-like body in which a cord is embedded in a coated rubber, and between the above-described snoral belt layer and the carcass, and is inclined with respect to the tire radial direction. It is characterized by a force with an inclined belt layer in which a plurality of extending cords are embedded in coated rubber.
  • the pneumatic tire for a motorcycle according to claim 6 of the present invention is the pneumatic tire for a motorcycle according to any one of claims 1 to 3, wherein the belt layer includes one or a plurality of parallel tire layers.
  • a spiral belt layer formed by spirally winding a strip of cords embedded in a coated rubber, and a plurality of belts provided between the snort belt layer and the carcass and arranged in parallel to each other.
  • the belt ply force of a plurality of belts in which the cord is embedded in the covering rubber, and the cross belt layers in which the inclination directions of the cords with respect to the tire radial direction are opposite to each other between the belt plies adjacent to each other are also strong. It is characterized by that.
  • the belt layer is composed of a crossing belt layer having cords that are inclined with respect to the radial direction of the tire, lateral bending rigidity is ensured during turning, and a higher cornering force can be generated.
  • a pneumatic tire for a motorcycle according to claim 7 of the present invention is the pneumatic tire for motorcycle according to claim 5, wherein the angle B of the cord of the inclined belt layer with respect to the radial direction of the tire is 3 ° ⁇ B It is characterized by satisfying ⁇ 15 °.
  • the reinforcement effect of the tire crown portion is improved by arranging an inclined belt layer having a cord whose angle with respect to the radial direction of the tire is B between the spiral belt layer and the carcass.
  • a pneumatic tire for a motorcycle according to claim 8 of the present invention is the pneumatic tire for motorcycle according to claim 6, wherein the angle B of the cord of the crossing belt layer with respect to the tire radial direction is 3 ° ⁇ B It is characterized by satisfying ⁇ 15 °.
  • the reinforcing effect of the tire crown portion is improved by arranging the crossing belt layer including the cord having an angle B with respect to the radial direction of the tire between the spiral belt layer and the carcass.
  • B ⁇ 3 °
  • the cords of the crossing belt layers are almost parallel to the tire radial direction, so that the improvement in rudder angle response and nimbleness is small, which has little effect on improving torsional rigidity.
  • B> 15 ° the lateral bending rigidity of the belt layer becomes too large, resulting in poor ground contact during turning and reduced grip. Therefore, the angle B preferably satisfies 3 ° ⁇ B ⁇ 15 °.
  • a pneumatic tire for a motorcycle according to claim 9 of the present invention is the pneumatic tire for motorcycle according to any one of claims 1 to 8, wherein the elastic modulus of the first rubber is El, When the elastic modulus of the second rubber is E2, 1. 1 ⁇ E1 / E2 ⁇ 1.7 is satisfied.
  • E1ZE2 results in little improvement in rudder angle response and lightness with little improvement in torsional rigidity at the center. Also, the turning force during turning is reduced. If E1 / E2> 1.7, the difference in the elastic ratio between the rubbers is too large, and the linearity of the handling is impaired, and the steering wheel may swing during driving. Therefore, it is preferable to satisfy 1.1 ⁇ E1 / E2 ⁇ 1.7.
  • El and E2 are the elastic moduli when the rubber temperature is 60 ° C.
  • a pneumatic tire for a motorcycle according to claim 10 of the present invention is the pneumatic tire for a motorcycle according to claim 9, wherein the elastic modulus of the first rubber is El [kgfZmm 2 ], the second tire.
  • the elastic modulus of rubber is E2 [kgfZmm 2 ]
  • it is characterized by satisfying 1 lkgf / mm 2 ⁇ El ⁇ 16kgfZmm 2 and 7 kgf / mm 2 ⁇ E2 ⁇ 13kgf Zmm 2 .
  • the elastic modulus El fulfills l lkgfZmm 2 ⁇ El ⁇ 16kgfZmm 2, also the elastic modulus E2 preferably satisfies the 7kgf / mm 2 ⁇ E2 ⁇ 13kgf / mm 2.
  • a pneumatic tire for a motorcycle according to claim 11 of the present invention is characterized in that the pneumatic tire for a motorcycle according to any one of claims 1 to 10 is used for a front wheel of a motorcycle.
  • the pneumatic tire for a motorcycle of the present invention improves the steering angle responsiveness and lightness of handling and secures a grip force at the time of turning, and has excellent steering stability performance at high speed running.
  • FIG. 1 is a cross-sectional view taken along the rotation axis of a pneumatic tire for a motorcycle according to a first embodiment.
  • FIG. 2 is taken along the rotation axis of a pneumatic tire for a motorcycle according to a second embodiment.
  • FIG. 3 is a sectional view taken along the rotational axis of a pneumatic tire for a motorcycle according to a third embodiment.
  • the pneumatic tire 10 for a motorcycle according to the present embodiment is a front tire, and the tire size is MCR180Z55ZR17MZC.
  • the pneumatic tire 10 for a motorcycle includes a first force-and-force ply 12 and a second force-and-force 14 that have cords extending in a direction intersecting the tire equatorial plane CL. It has a carcass 16 constructed. 1 to 3, the carcass 16 is a single line, and the first carcass ply 12 and the second carcass ply 14 are not shown. In the present embodiment, the carcass 16 has a structure in which two carcass plies overlap each other. In other embodiments, the carcass 16 may have a structure having a single carcass ply force.
  • Each of the first carcass ply 12 and the second carcass ply 14 is wound around the bead core 20 embedded in the bead portion 18 with the tire inner force also directed outward.
  • the first carcass ply 12 includes a plurality of radially extending cords (for example, organic fiber cords such as nylon) arranged in parallel in a covered rubber, and in the present embodiment, the tire equator The angle of the cord with respect to the tire radial direction on plane CL is set to 15 °.
  • the second carcass ply 14 is also a cord in which a plurality of radially extending cords (for example, organic fiber cords such as nylon) are embedded in parallel in the covering rubber.
  • the tire equatorial plane CL The cord angle with respect to the tire radial direction is set to 15 °.
  • the cord of the first carcass ply 12 and the cord of the second carcass ply 14 cross each other and are opposite to the tire equatorial plane CL. It is inclined in the direction.
  • the first carcass ply 12 and the second carcass ply 14 use nylon cords.
  • An inclined belt layer 24 is disposed outside the carcass 16 in the tire radial direction.
  • the inclined belt layer 24 is formed from a belt ply 24A.
  • the belt ply 24A is formed by embedding a plurality of cords (corresponding to a 0.5 mm diameter twisted nylon fiber) in a coated rubber in parallel, and the tire radial at the tire equatorial plane CL.
  • the code angle with respect to the direction is set to 10 °.
  • the cord driving density in the belt ply 24A in the present embodiment is 10 Z25 mm.
  • a spiral belt layer 22 is provided outside the inclined belt layer 24 in the tire radial direction.
  • the spiral belt layer 22 is, for example, a long rubber-coated cord in which one cord is coated with an unvulcanized coating rubber, or a belt-like ply in which a plurality of cords are coated with an unvulcanized coating rubber. It is formed by spirally winding, and the angle of the cord with respect to the tire equatorial plane CL is about 0 ° (about 0 to 3 °).
  • the cord of the spiral belt layer 22 may be an organic fiber cord or a steel cord, and the spiral belt layer 22 of this embodiment has two parallel cords (steel having a diameter of 0.2 mm).
  • a spiral belt layer formed by spirally winding a long rubber-coated cord with one cord covered with unvulcanized coating rubber is called a monospiral belt layer.
  • a tread rubber 30 that forms a tread 28 is disposed on the outer side of the radial belt layer 22 in the tire radial direction.
  • the tread rubber 30 is also formed with a plurality of types of rubber force. 30 is also formed with two types of rubber force, which will be described later. As seen from the cross section in the tire width direction, the tread rubber 30A is the center of the tread 28, the tread rubber 30A is the tread rubber 30B, and the tread rubber 30A is harder than the tread rubber 30B. From this, it can be said that the tread rubber 30A has higher rigidity than the tread rubber 30B.
  • the boundary between the tread rubber 30A and the tread rubber 30B on both sides is provided in the ground contact surface of the tire 10 (the ground contact surface when the tire rotation axis is parallel to the road surface).
  • the angle B of the cord of the inclined belt layer 24 with respect to the tire radial direction is preferably 80 °, and the range of the force angle B satisfying 3 ° ⁇ B ⁇ 15 ° is satisfied in this embodiment.
  • the spiral belt layer 22 is provided on the outer side in the tire radial direction of the carcass 16, the rigidity in the tire circumferential direction of the tread 28 is increased, and the tire of the tread 28 during high-speed traveling is increased.
  • the protrusion to the outside in the radial direction can be suppressed, and the high-speed durability is improved.
  • the inclined belt layer 24 the lateral bending rigidity is improved, and a cornering force can be generated at the time of turning.
  • the tread 28 is formed by the tread rubber 30 A and the tread rubber 30 B, and the boundary between the tread rubber 30 A and the tread rubber 30 B is formed in the ground contact surface of the tread 28.
  • the tread rubber 30A is harder than the tread rubber 30B, the lateral bending rigidity and torsional rigidity of the central portion are improved. Also, the lateral bending rigidity of both sides is kept low. As a result, the steering angle responsiveness and lightness when traveling straight ahead are improved, and the grip force during turning is ensured. Therefore, rudder angle Responsiveness and nimbleness are improved, and grip power during turning is ensured, resulting in excellent handling stability at high speeds.
  • the rigid step force between the tread rubber 30A and the tread rubber 30B is arranged in the ground plane, the discontinuity in the generation level of the lateral force corresponding to the CA change during turning is eliminated, and the handling The linearity is ensured and the steering stability is excellent.
  • the width W2 of the tread rubber 30A is too narrow, so the steering angle response and lightness improvement with little improvement in torsional rigidity at the center part and maneuvering at high speeds with little improvement. Stability performance deteriorates. Therefore, it is preferable that the relationship between W1 and W2 satisfies 0.1W1 ⁇ W2.
  • the upper limit of W2 is less than W1 as defined in claim 1.
  • the grip force resulting from the high grounding property due to the low lateral bending rigidity of the tire crown portion and the cord of the spiral belt layer 22 were steeled. This improves the torsional rigidity and improves the steering angle response and lightness.
  • the reinforcing effect of the tire 10 is improved by disposing the inclined belt layer 24 having a cord having an angular force with respect to the radial direction of the tire between the spiral belt layer 22 and the carcass 16.
  • the cord of the inclined belt layer 24 is substantially parallel to the tire radial direction, so that the improvement in rudder angle responsiveness and lightness with little effect on torsional rigidity is small. Also, if B> 15 °, the lateral bending rigidity of the belt layer becomes too large, resulting in poor grounding performance during turning and reduced grip. Therefore, the angle B preferably satisfies 3 ° ⁇ B ⁇ 15 °.
  • the elastic modulus E1 preferably satisfies l lkgfZmm 2 ⁇ El ⁇ 16kgfZm m 2
  • the elastic modulus E2 preferably satisfies 7 kgfZmm 2 ⁇ E2 ⁇ 13kgfZmm 2 .
  • the steering angle response and lightness of the handling performance are improved, the grip force at the time of turning is ensured, and the steering stability performance at the time of high speed running is excellent.
  • the belt ply 24A is made of nylon fiber as the cord.
  • the material of these cords may be aromatic polyamide fiber (for example, Kepler: registered trademark). .
  • the tire size of the pneumatic tire 10 for a motorcycle according to the present embodiment is MCR180Z55ZR17MZC as in the first embodiment.
  • the pneumatic tire 10 for a motorcycle differs from the first embodiment in that an intersecting belt layer 26 is arranged instead of the inclined belt layer 24, and the other is the first implementation. It is the structure similar to a form.
  • the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
  • the cross belt layer 26 includes a first belt ply 26A and a second belt ply 26B.
  • the first belt ply 26A is a tire in which a plurality of cords (corresponding to a diameter of 0.5 mm formed by twisting nylon fibers) are arranged in parallel in a covered rubber, and are embedded in a tire.
  • the cord angle with respect to the radial direction of the tire on the equatorial plane CL is set to 10 °.
  • the second belt ply 26B is also formed by embedding a plurality of cords (corresponding to a 0.5 mm diameter twisted nylon fiber) in the covered rubber, parallel to the tire equatorial plane CL.
  • the angle of the cord with respect to the radial direction is set to 10 °!
  • the cord of the first belt ply 26A and the cord of the second belt ply 26B cross each other and incline in opposite directions with respect to the tire equatorial plane CL.
  • the cord driving density in each of the first belt ply 26A and the second belt ply 26B in this embodiment is 37 Z25mm.
  • the cord of the crossing belt layer 26 and the steel cord of the spiral belt layer 22 intersect with each other. Torsional rigidity and lateral bending rigidity are further improved. Therefore, the steering angle responsiveness and nimbleness of handling are improved, and the steering stability is improved because the feeling of rigidity during turning is increased.
  • a force in which the cord of the first belt ply 26A and the cord of the second belt ply 26B are made of nylon fibers.
  • the material of these cords is an aromatic polyamide fiber. (For example, Kepler)
  • the tire size of the pneumatic tire 10 for motorcycles of the present embodiment is MCR180Z55ZR17MZC as in the first embodiment.
  • the tread rubber 30A tapers from the tread 28 tread side toward the tread 28 bottom side, and the boundary force between the tread rubber 30A and the tread rubber 30B is connected to the bottom surface of the tread 28.
  • the tread rubber 30A has an inverted triangle shape when viewed from the cross section in the tire width direction. This is different from the first embodiment, and the other configuration is the same as that of the first embodiment.
  • the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
  • the boundary between the tread rubber 30A and the tread rubber 30B In order for the boundary between the tread rubber 30A and the tread rubber 30B to be connected at the bottom surface of the tread 28, the boundary between the rubber viewed from the cross section in the tire width direction is closer to the tire equatorial surface from the tread tread side to the tread bottom side. It is necessary to. In other words, the boundary is slanted There is a need. As a result, the rigidity step at the tread tread boundary can be reduced and the handling linearity can be improved.
  • test tire was mounted on a lOOOOcc sports type motorcycle, and the vehicle was run on the test course, and the lightness, turning force and handling included in the handling stability were evaluated by the feeling of the test rider.
  • the evaluation results are shown in Table 1 as index indications when the steering stability performance of tires of the conventional spiral belt structure is taken as 100. The larger the evaluation value, the better the result.
  • the size of the test tire is MCR180Z55ZR17MZC. This tire is mounted on the rim MT 5.5 X 17, and the tire is pressurized until the internal pressure becomes 250 kPa.
  • the tire of the conventional example was of the same size, the same rim, and the same pressure as the test tire except that it was composed of one kind of tread rubber and only a spiral belt.
  • the present invention can be applied to the industrial field of pneumatic tires for motorcycles.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Abstract

Pneu pour véhicule à deux roues, capable d’améliorer la réaction par rapport à l’angle de braquage et la légèreté de manœuvre et de faire preuve d’une excellente stabilité de direction en cours de conduite à grande vitesse en assurant une force de serrage dans les virages. Le pneu (10) comporte des tringles (20), des pièces de talon (18), une carcasse (16), une couche de ceinture diagonale (24) se trouvant sur le côté extérieur radial du pneu de la carcasse, une couche de ceinture en spirale (22), et une gomme (30) de bande de roulement formant une bande de roulement (28). Dans la section transversale latérale du pneu, la partie centrale de la bande de roulement (28) est constituée d’une gomme (30A) de bande de roulement et les deux parties latérales de celle-ci sont constituées de gommes (30B) de bande roulement. La gomme (30A) de bande de roulement est plus dure que les gommes (30B) de bande de roulement, et les limites entre la gomme (30A) de bande de roulement et les gommes (30B) de bande de roulement sont constituées en une surface en contact avec le sol quand l’axe de rotation du pneu est positionné parallèlement à une surface de roulement. Par conséquent, la rigidité en torsion de la partie centrale peut être augmentée, la rigidité à la flexion latérale des deux parties latérales peut être maintenue à un niveau faible, la réaction par rapport à l’angle de braquage et la légèreté de manœuvre peuvent être améliorées et la stabilité de direction en cours de conduite à grande vitesse peut être augmentée étant donné que la force de serrage dans les virages peut être assurée.
PCT/JP2006/321861 2005-11-02 2006-11-01 Pneu pour véhicule a deux roues WO2007052701A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005-319993 2005-11-02
JP2005319993A JP4540587B2 (ja) 2005-11-02 2005-11-02 二輪車用空気入りタイヤ

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WO2007052701A1 true WO2007052701A1 (fr) 2007-05-10

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
WO2008018260A1 (fr) * 2006-08-11 2008-02-14 Bridgestone Corporation Pneu pneumatique radial pour véhicule à moteur à deux roues
WO2008149611A1 (fr) * 2007-06-07 2008-12-11 Bridgestone Corporation Pneumatique pour véhicule à deux roues motorisé et procédé d'utilisation de ce pneumatique
CN110770043A (zh) * 2017-06-19 2020-02-07 株式会社普利司通 充气轮胎
IT202100031685A1 (it) * 2021-12-17 2023-06-17 Pirelli Pneumatico per motocicli

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JP2010105459A (ja) * 2008-10-29 2010-05-13 Sumitomo Rubber Ind Ltd 二輪自動車用タイヤ

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JP2003515487A (ja) * 1999-12-04 2003-05-07 ダンロップ タイヤ リミテッド 自動二輪車用ラジアルタイヤ
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EP1657080A1 (fr) * 2004-11-12 2006-05-17 The Goodyear Tire & Rubber Company Bandage pneumatique pour moto
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JP2006273278A (ja) * 2005-03-30 2006-10-12 Toyoda Gosei Co Ltd ダクト構造体

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JP2006199112A (ja) * 2005-01-19 2006-08-03 Bridgestone Corp 自動二輪車用空気入りタイヤ
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WO2008018260A1 (fr) * 2006-08-11 2008-02-14 Bridgestone Corporation Pneu pneumatique radial pour véhicule à moteur à deux roues
JP2008044449A (ja) * 2006-08-11 2008-02-28 Bridgestone Corp 自動二輪車用空気入りラジアルタイヤ
US8176956B2 (en) 2006-08-11 2012-05-15 Bridgestone Corporation Pneumatic radial tire for motorcycle
WO2008149611A1 (fr) * 2007-06-07 2008-12-11 Bridgestone Corporation Pneumatique pour véhicule à deux roues motorisé et procédé d'utilisation de ce pneumatique
US8257530B2 (en) 2007-06-07 2012-09-04 Bridgestone Corporation Pair of tires for motorcycle and method of using tires for motorcycle
CN110770043A (zh) * 2017-06-19 2020-02-07 株式会社普利司通 充气轮胎
IT202100031685A1 (it) * 2021-12-17 2023-06-17 Pirelli Pneumatico per motocicli
WO2023111970A1 (fr) * 2021-12-17 2023-06-22 Pirelli Tyre S.P.A. Pneu pour motocycle

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