WO2006068085A1 - 空気入りタイヤ、及びタイヤ・リム組立体 - Google Patents
空気入りタイヤ、及びタイヤ・リム組立体 Download PDFInfo
- Publication number
- WO2006068085A1 WO2006068085A1 PCT/JP2005/023259 JP2005023259W WO2006068085A1 WO 2006068085 A1 WO2006068085 A1 WO 2006068085A1 JP 2005023259 W JP2005023259 W JP 2005023259W WO 2006068085 A1 WO2006068085 A1 WO 2006068085A1
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- WO
- WIPO (PCT)
- Prior art keywords
- tire
- bead
- partition wall
- reinforcing layer
- pair
- Prior art date
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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
- B60C5/00—Inflatable pneumatic tyres or inner tubes
- B60C5/20—Inflatable pneumatic tyres or inner tubes having multiple separate inflatable chambers
- B60C5/22—Inflatable pneumatic tyres or inner tubes having multiple separate inflatable chambers the chambers being annular
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B21/00—Rims
- B60B21/02—Rims characterised by transverse section
- B60B21/04—Rims characterised by transverse section with substantially radial flanges
-
- 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/04—Bead cores
- B60C15/05—Bead cores multiple, i.e. with two or more cores in each bead
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T152/00—Resilient tires and wheels
- Y10T152/10—Tires, resilient
- Y10T152/10495—Pneumatic tire or inner tube
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T152/00—Resilient tires and wheels
- Y10T152/10—Tires, resilient
- Y10T152/10495—Pneumatic tire or inner tube
- Y10T152/10522—Multiple chamber
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T152/00—Resilient tires and wheels
- Y10T152/10—Tires, resilient
- Y10T152/10495—Pneumatic tire or inner tube
- Y10T152/10819—Characterized by the structure of the bead portion of the tire
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T152/00—Resilient tires and wheels
- Y10T152/10—Tires, resilient
- Y10T152/10495—Pneumatic tire or inner tube
- Y10T152/10855—Characterized by the carcass, carcass material, or physical arrangement of the carcass materials
- Y10T152/10864—Sidewall stiffening or reinforcing means other than main carcass plies or foldups thereof about beads
Definitions
- the present invention relates to a pneumatic tire and a tire / rim assembly, and more particularly, a pneumatic tire in which a tire air chamber is divided into a plurality of portions in a tire width direction by a partition wall portion formed inside the tire. , And a tire 'rim assembly.
- a pneumatic tire in which a tire air chamber is divided into a plurality of portions in the tire width direction by a partition wall formed inside the tire (see, for example, Patent Document 1).
- the partition wall portion is configured such that the inner surface side force near the tire shoulder portion extends inward in the tire radial direction along the second carcass brush, and the inner end in the tire radial direction contacts the rim. .
- the inner diameter of the outer bead portion and the inner diameter of the inner bead portion are the same.
- the tire air chamber can be divided into three independent tire air chambers in the tire width direction by the partition wall portion. It is possible to set the air pressure of each tire chamber to a different pressure.
- Patent Document 1 Japanese Unexamined Patent Publication No. 2003-39914 (Fig. 3)
- the pneumatic tire described in Patent Document 1 has the following problems because the inner diameter of the outer bead portion and the inner diameter of the inner bead portion are set to be the same.
- the partition wall moves !, Teshima !, and air leakage occurs when the internal pressure of adjacent air chambers is different. There is a case.
- a first carcass ply is provided at the connecting portion between the partition wall portion and the tire inner side surface as the tire repeats as the tire rolls.
- the portion provided with the second carcass ply sometimes peeled off.
- the present invention has been made in view of the above circumstances, and a pneumatic tire in which a tire air chamber is divided into a plurality in the tire width direction by a partition wall formed inside the tire, and a tire rim assembly In 3D, it aims to improve the assembly work of pneumatic tires on the rim and improve the durability of pneumatic tires.
- the pneumatic tire according to claim 1 includes a pair of left and right tire side portions formed on both sides in the tire width direction, and a tire radial outer end of one tire side portion of the pair of left and right tire side portions. Between the outer side bead portion formed on each of the pair of left and right tire side portions and the outer bead portion in the tire width direction. A tire inner side surface force of at least one of the tire side portion and the tread portion, which extends inward in the tire radial direction and has an inner bead portion in contact with the rim at the inner end in the tire radial direction.
- a pair of left and right partition walls that divide a tire air chamber formed by the tire side part, the tread part, and the rim into three in the tire width direction.
- the partition wall force reaches the tire side portion via a connecting portion between the partition wall portion and the tire inner side surface.
- a pair of left and right reinforcing layers are provided so as to be continuous with the partition wall force and the tire side portion via a connecting portion between the partition wall portion and the tire inner side surface.
- the bead seat is mounted on the inner side in the tire axial direction through a step, and is assembled to a rim having an inner bead seat set to the same inner diameter as the inner bead portion, so that it is independent in the tire axial direction.
- a tire rim assembly with three tire chambers is obtained.
- This tire 'rim assembly can be punctured by other punctures, such as punctures on the ground contact surface due to nailing, etc., or side punctures due to curb rubbing, etc. Since the air chamber supports the load, it is possible to continue running safely without any problems, although it is accompanied by a slight maneuvering stability and a bad feeling of vibration riding comfort.
- the outer bead seat is attached to the rim, and the inner bead seat is attached to the inner bead seat. Due to the difference in diameter between the two, the inner bead portion moves outward in the tire width direction. The inner bead part is pulled when the rim is assembled, so it is not necessary to form a tall hump part on the outer side in the tire width direction of the inner bead part. Rim assembly becomes easy. [0018] Note that the hump portion on the inner side of the inner bead portion in the tire width direction is not essential! /.
- a pair of left and right reinforcing layers is provided in a region from the partition wall portion to the tire side portion through a connection portion between the partition wall portion and the tire inner surface. Therefore, the strength of the connecting portion between the partition wall portion and the tire inner surface can be improved by this reinforcing layer. For this reason, even if the tire is repeatedly kneaded as the tire rolls, it is possible to prevent the separation at the connecting portion between the partition wall portion and the tire inner surface.
- the durability of the connecting portion between the partition wall and the tire inner surface can be improved by providing the reinforcing layer.
- the reinforcing layer is configured by any one of an inclined cord layer, a triaxial woven fabric, and a nonwoven fabric, or a combination thereof. It is characterized by that.
- the reinforcing layer is formed of any one of the inclined cord layer, the triaxial woven fabric, and the nonwoven fabric, or a combination thereof, the strength of the connecting portion between the partition wall portion and the tire inner side surface is improved. Since it can raise, it is suitable.
- O—It is characterized by satisfying RI ⁇ 50mm.
- the inner diameter RO of the inner bead portion is too small relative to the inner diameter of the outer bead portion.
- the inner diameter of the rim becomes smaller, and as a result, the diameter of the brake that can be mounted inside the rim becomes smaller. This is not preferable because it may cause a decrease in vehicle motion performance.
- the invention according to claim 4 is the pneumatic tire according to any one of claims 1 to 3, wherein the pneumatic tire is positioned at a connecting portion between the partition wall portion and the tire inner side surface.
- the outermost portion of the reinforcing layer in the radial direction of the tire is used as a folding-bending point of the reinforcing layer, and the folding-bending point force of the reinforcing layer is a portion of the reinforcing layer that extends toward the inner bead portion along the reinforcing layer.
- the length of the reinforcing layer is W1 and the bending point force of the reinforcing layer is W2.
- the length of the reinforcing layer at the portion extending along the reinforcing layer toward the outer bead side is W2, and the reinforcing layer is used as the partition wall portion.
- the reinforcing layer from the folded bending point of the reinforcing layer Virtual extension line and inner bead bump
- the length of the partition wall portion at the intersection with the end reference line is FH1
- the reinforcing layer extends along the tire side portion along the tire rotation axis direction passing through the bead base protruding end of the outer bead portion.
- the length of the tire side portion is FH2, 10mm ⁇ Wl ⁇ FHl and 10mm ⁇ W2 ⁇ FH2 are satisfied.
- the bead base protruding end of the inner bead portion is a portion of the bead base formed in the inner bead portion that protrudes most inward in the tire radial direction (for example, a bead toe of the inner bead portion).
- the bead base protruding end of the outer bead portion is the outer bead portion. This is the portion of the bead base formed on the innermost side that protrudes inward in the tire radial direction (for example, the bead toe of the outer bead portion).
- the reinforcing layer is reinforced from the folded bending point of the reinforcing layer.
- the length W2 of the reinforcing layer that extends to the outer bead portion along the layer is too short, so that the connecting portion between the partition wall and the tire inner surface is the same as in a conventional pneumatic tire without a reinforcing layer. The strength cannot be ensured, and there is a possibility that peeling occurs at the connecting portion between the partition wall and the tire inner surface.
- the length W1 of the reinforcing layer that extends from the folded bending point of the reinforcing layer to the inner bead portion side along the reinforcing layer, and the folding bending point force of the reinforcing layer on the outer bead portion side along the reinforcing layer If a predetermined numerical value range is provided for the length W2 of the reinforcing layer extending in the direction as in the invention described in claim 4, the strength of the connecting portion between the partition wall portion and the tire inner side surface can be sufficiently ensured. As a result, it is possible to reliably prevent peeling at the connecting portion between the partition wall and the tire inner surface.
- the invention according to claim 5 is the pneumatic tire according to any one of claims 1 to 4, wherein the pair of left and right outer bead portions are provided along a tire circumferential direction.
- Each of the pair of left and right inner bead portions is provided with an inner bead core that is disposed on the inner side in the tire width direction of the outer bead core and extends along the tire circumferential direction.
- Side part force In the region reaching the other tire side part via the tread part, the pair of outer bead cores are configured to straddle between the pair of outer bead cores, and both ends in the tire width direction are the pair of outer bead.
- a first carcass ply locked to each of the cores is provided, and one partition wall force is provided in a region reaching the other partition wall through the tread portion, on the inner side of the tire of the first carcass ply.
- a second carcass ply disposed between the pair of inner bead cores and configured to straddle between the pair of inner bead cores and having both ends in the tire width direction locked to the pair of inner bead cores, respectively.
- the partition wall portion includes at least one tire inner side surface force of the tire side portion and the tread portion. The second force extends inward in the tire radial direction along the tire outer side of the one ply, and the inner end in the tire radial direction is a rim.
- Partition rubber layers formed so as to contact each other are provided, and each of the pair of left and right reinforcing layers is a tire of the first carcass ply. It is arranged inside and outside the tire of the second carcass ply.
- the pair of left and right reinforcing layers are disposed inside the tire of the first carcass brush and outside the tire of the second carcass ply, and inside the tire of the partition wall portion.
- the partition wall force is provided so as to be continuous with the tire side portion via the connecting portion with the side surface.
- the strength of the connecting portion between the partition wall and the tire inner surface can be improved by this reinforcing layer. Therefore, even if the tire is repeatedly squeezed as the tire rolls, the partition wall and the tire inner surface It is possible to prevent the portion where the first carcass ply is provided and the portion where the second carcass ply is provided from being separated from each other.
- the reinforcing layer can reliably prevent the portion where the first carcass ply is provided and the portion where the second carcass ply is provided at the connecting portion between the partition wall and the tire inner surface. Can do.
- the invention according to claim 6 is the pneumatic tire according to claim 5, wherein one end side in the tire width direction of the second carcass ply is the pair of left and right inner bead cores.
- the other side of the second carcass ply in the tire width direction is wound up from the outside of the tire toward the inside from the outside of the pair of left and right inner bead cores. It is characterized by
- the first carcass ply reinforces the tire side part (bead part, sidewall part, tire shoulder part) and the tread part
- the second carcass ply reinforces the partition part and the tread part.
- the central tire chamber mainly shares the tension of the belt provided on the first carcass ply, so it can be greatly increased by setting the internal pressure here lower than the tire chambers on both sides. A ground contact area can be ensured and, for example, the grip force can be improved.
- the tire air chambers on both sides mainly share the ply tension of the side portion of the tire. Therefore, by setting this internal pressure higher than the central tire air chamber, the lateral tire rigidity can be increased. For example, the handling stability can be improved.
- the one end side in the tire width direction of the second carcass ply is wound up around one of the pair of left and right inner bead cores from the outer side of the tire to the inner side.
- the cord tension applied to the second carcass ply in the partition wall by the internal pressure of the air chambers on both sides A force is applied to rotate the bead core and the rubber under the bead core in the direction of arrow B in Fig. 3.
- the internal pressures of the tire chambers on both sides are relatively higher than the internal pressure of the central tire chamber. Even if the pressure difference between the central tire chamber and the tire chambers on both sides is large, or when the internal pressure of the central tire chamber becomes zero as a result of nailing (so-called puncture) The partition wall does not deviate from the predetermined position of the rim, and the internal pressure of the tire chambers on both sides in the tire axial direction can be maintained.
- the invention according to claim 7 is the pneumatic tire according to any one of claims 1 to 6, wherein the inner diameter of the inner bead portion is set to RO while the inner diameter of the outer bead portion is set to RO.
- RI is defined as RI
- the contact width of the tread portion on the flat surface in a state where the specified internal pressure is filled and the specified load is applied is TW, and extends along the tire side portion and the tread portion, and the tire side portion and the tread portion
- TW the contact width of the tread portion on the flat surface in a state where the specified internal pressure is filled and the specified load is applied
- TW the contact width of the tread portion on the flat surface in a state where the specified internal pressure is filled and the specified load is applied
- TW the contact width of the tread portion on the flat surface in a state where the specified internal pressure is filled and the specified load is applied
- TW the contact width of the tread portion on the flat surface in a state where the specified internal pressure is filled and the specified load is applied
- TW the contact width of the
- the dimension in the tire width direction between one and the other of the connecting part is KW
- the tire height is TH
- the inner diameter force of the connecting part is the inner diameter of the outer bead part IV
- the contact width of the tread portion is measured with the following specified load and specified internal pressure.
- the specified load is the maximum load (maximum load capacity) of a single wheel in the applicable size (ply rating) described in the following standard.
- the specified internal pressure is described in the following standard. Air pressure corresponding to the maximum load (maximum load capacity) of a single wheel in the applicable size.
- the standard is determined by an industrial standard effective in an area where a tire is produced or used. For example, in the United States, “The Tire and Rim Association Inc. Y ear Book ear, in Europe, the Hie European Tire and Rim Technical Organization St andards Manual”, and in Japan, the Japan Automobile Tire Association “JATMA Year Book” Stipulated in
- the contact width of the tread portion on the flat surface in a state where the specified internal pressure is filled and the specified load is applied is TW
- the tire side portion and the tread are The first virtual reference line that passes along the thickness direction of the tire side portion and the tread portion and the second virtual point that extends along the partition wall portion and passes through the intermediate point of the partition wall portion in the thickness direction.
- the tire side portion and the connecting portion between the tread portion and the partition portion are located on the normal line passing through the ground contact end of the tread portion or on the outer side in the tire width direction.
- the tire side portion and the connecting portion between the tread portion and the partition wall portion are located on the inner side in the tire radial direction of the normal passing through the ground contact end of the tread portion.
- this makes it difficult for force from the road surface to be transmitted to the partition portion, thereby reducing the force applied to the partition portion from the road surface. it can. Therefore, the partition wall can be prevented from being damaged, and the durability of the tire can be improved as compared with the conventional case.
- the connecting portion is configured to be positioned on the outer side in the tire radial direction from 1Z2 of the tire height TH.
- a tire 'rim assembly according to claim 8 includes the pneumatic tire according to any one of claims 1 to 7 and a rim on which the pneumatic tire is mounted,
- the rim is provided via a step portion on the inner side in the rim axial direction of each of the pair of left and right outer bead seats that respectively contact the inner peripheral surfaces of the pair of left and right outer bead portions, and the pair of left and right outer bead seats.
- the pair of left and right inner beads are set to have a smaller diameter than the outer bead sheet.
- a pair of left and right inner bead sheets that are in contact with the inner peripheral surface of each of the bead portions, and one of the pair of left and right inner bead sheets, and the inner bead sheet is set to have a smaller diameter than the inner bead sheet. And having a drop.
- the inner peripheral surface of the bead portion contacts the side bead sheet, and the inner peripheral surface of the partition wall portion is By contacting the inner bead seat, a tire / rim assembly with three tire chambers independent in the tire axial direction can be obtained.
- the tire air chamber supports the load even if it is punctured in any other way, such as puncture on the ground surface due to nailing, etc., or side puncture due to curb rubbing, etc. As a result, it is possible to continue traveling safely without any problems, although there is a slight maneuvering stability and a bad feeling of vibration.
- the rim has a bead part and a partition part dropped into a drop when the rim is assembled without a hump part that hooks the partition part during rim assembly and deteriorates workability as in the prior art. Since it can be included, a pneumatic tire can be easily assembled.
- the invention according to claim 9 is the tire 'rim assembly according to claim 8, wherein the inner pressure of the tire chamber formed on both sides in the tire axial direction of the tire chamber is in the tire axial direction. It is characterized by being set higher than the internal pressure of the tire chamber formed in the center.
- each tire chamber is set to a standard air pressure, and then the air in the tire chamber in the center in the tire axial direction is evacuated, and the internal pressures in the tire chambers on both sides in the tire axial direction are If the pressure is set relatively higher than the internal pressure, the rigidity in the longitudinal direction of the tire will be reduced and the contact area will be increased, so that it is possible to improve the vibration riding comfort on rough roads and the grip on snowy roads. .
- the assembling work to the rim can be improved and the durability of the connecting portion between the partition wall portion and the tire inner side surface can be improved. Can be improved.
- the tire side portion, the tread portion, and the connecting portion of the partition wall portion have a normal force passing through the grounding end of the tread portion, or more outward than the tire width direction.
- the connecting portion of the tire side portion, the tread portion, and the partition wall portion is located on the inner side in the tire radial direction of the normal passing through the ground contact end of the tread portion.
- FIG. 1 is a cross-sectional view of a tire 'rim assembly according to Embodiment 1 of the present invention.
- FIGS. 2 (A) to 2 (C) are enlarged views of main parts of a tire 'rim assembly according to Embodiment 1 of the present invention.
- FIG. 3 is a sectional view of a tire / rim assembly according to Embodiment 2 of the present invention.
- FIG. 4 is a cross-sectional view of a tire / rim assembly according to a comparative example.
- FIG. 5 is a sectional view of a tire / rim assembly according to Embodiment 3 of the present invention.
- FIG. 6 is a cross-sectional view of a tire / rim assembly according to Embodiment 4 of the present invention.
- FIG. 7 is a cross-sectional view of a tire / rim assembly according to a comparative example.
- FIG. 8 is a cross-sectional view of a tire / rim assembly according to a comparative example.
- FIG. 9 is a cross-sectional view of a tire / rim assembly according to a conventional example.
- FIG. 1 and 2 are diagrams showing Embodiment 1 of the present invention
- FIG. FIG. 2 is a cross-sectional view showing a configuration of a tire rim assembly to which a tire (size: 225Z55R17) is attached
- the pneumatic tire 10 of the present embodiment is suitably used as a tire for passenger cars, and includes an outer bead core 18, an inner bead core 31, a first carcass ply 32, and a second carcass ply. 37, a tread rubber layer 23, a side rubber layer 19, a partition rubber layer 27, a belt 36, a reinforcing layer 38, and inner liners 35 and 39 are provided as main components.
- the outer bead core 18 is configured to extend along the tire circumferential direction, and the inner bead core 31 is disposed on the inner side in the tire width direction of the outer bead core 18 and extends along the tire circumferential direction. It is composed.
- the first carcass ply 32 is configured to straddle a pair of outer bead cores 18 in a toroidal shape. Both ends of the first carcass ply 32 in the tire width direction are engaged with the pair of outer bead cores 18 so that the tire inner force is also wound outward.
- the second carcass ply 37 is arranged inside the tire of the first carcass ply 32, and is configured to straddle between the pair of inner bead cores 31 in a toroidal shape. Both ends in the tire width direction of the second car force splice 37 are locked to the pair of inner bead cores 31 so as to be wound up from the inner side to the outer side of the tire.
- the first carcass ply 32 and the second carcass ply 32 are configured by rubber coating a plurality of organic fiber cords arranged in parallel to each other, such as a polyester cord and a nylon cord arranged in a radial arrangement.
- the first carcass ply 32 reinforces the outer bead portion 16, the tire side portion 20, and the tread portion 22 described later, and the second carcass ply 37 includes the partition wall portion 24 and the tread described later. Part 22 is reinforced.
- the tread rubber layer 23 is provided on the outer side in the tire radial direction of the first carcass ply 32, and in this example, the tread portion 23 is formed on the tire 10 by the tread layer 23. Further, a belt 36 is disposed on the tread portion 22 of the pneumatic tire 10 of the present example at a position on the outer side in the tire radial direction of the first carcass ply 32.
- the belt 36 is composed of, for example, two or more steel cord crossing layers.
- the side rubber layer 19 is provided on the outer side in the tire axial direction of the first carcass ply 32. In this example, the tire side portion 20 is configured by the side rubber layer 19 in the tire 10.
- the tire side portion 20 is divided into regions of a tire shoulder portion 21, a sidewall portion 15, and an outer bead portion 16.
- the outer bead portion 16 of this example is formed so as to come into contact with the outer bead seat 46 of the rim 12.
- the outer bead portion 16 includes the upper portion 32A of the first carcass ply 32 and the main body portion.
- An outer bead filler 34 extending from the outer bead core 18 to the outer side in the tire radial direction is buried between the outer beads 31 and 32.
- the partition rubber layer 27 is configured so that the tire inner force of the tire shoulder portion 21 also extends inward in the tire radial direction along the tire outer side of the second carcass ply 37.
- the inner end is formed so as to contact the inner bead sheet 48 of the rim 12.
- the partition rubber layer 27 is formed along the second carcass ply 37 in this way, so that the tire air chamber formed by the tire side portion 20, the tread portion 22, and the rim 12 is formed.
- a pair of left and right partition walls 24 that divide this into three in the tire width direction is formed.
- the main air chamber 26 is formed between the partition wall portion 24 and the partition wall portion 24, and the first auxiliary air is formed between the tire side portion 20 and the partition wall portion 24 on the arrow L direction side.
- a chamber 28 is formed, and a second auxiliary air chamber 30 is formed between the tire side portion 20 and the partition wall portion 24 on the arrow R direction side.
- the main air chamber 26, the first sub air chamber 28, and the second sub air chamber 30 are Each is independent. Further, an inner liner 35 is provided on the inner side surface of the auxiliary air chamber 26, and an inner liner 39 is provided on the inner side surfaces of the first auxiliary air chambers 28, 30.
- a portion on the inner side in the tire radial direction of the partition wall portion 24 is formed as an inner bead portion 25 having an inner bead core 31.
- An inner bead filler 33 extending from the inner bead core 31 to the outer side in the tire radial direction is embedded in the inner bead portion 25 between the collar upper portion 37A and the main body portion 37B of the second carcass ply 37.
- the inner diameter of the outer bead 16 is RO and the inner It is preferable to set so that 0 ⁇ RO-RI ⁇ 50 mm is satisfied, where RI is the inner diameter of the side bead portion 25.
- the reinforcing layer 38 is for improving the strength of the connecting portion 29 between the partition wall portion 24 and the tire inner side surface 17, as will be described later.
- the reinforcing layer 38 of the present example is disposed inside the tire of the first carcass ply 32 and outside the tire of the second carcass ply 37, and via a connecting portion 29 with the tire inner surface 17 of the partition wall portion 24. It is provided so as to continue from the partition wall portion 24 to the tire side portion 20.
- the reinforcing layer 38 of the present example is formed of, for example, an inclined cord layer, a triaxial woven fabric, a non-woven fabric, or a combination thereof.
- the reinforcing layer 38 can be appropriately formed of a member other than the inclined cord layer, the triaxial woven fabric, and the nonwoven fabric.
- the inclined cord layer for example, a layer having at least one crossing layer composed of cords intersecting each other is used.
- the fibers used in the inclined cord layer preferably have a high elastic modulus, and examples of the high elastic fiber include steel fiber, aramid fiber, polybenzoxazole fiber, carbon fiber, and glass fiber. Possible force Other fibers may be used. Among these, steel fibers are preferable from the viewpoint of effects. Further, the fiber may be a monofilament or a multifilament (or cord) obtained by twisting a plurality of fibers.
- triaxial fabric As a triaxial fabric, two types of warp (X-axis and Y-axis) and weft (Z-axis) are at an angle of about 60 °. What is woven in a crossed state is used.
- the triaxial woven fabric is preferably formed of at least one selected from highly rigid organic fibers, inorganic fibers, and metal fibers.
- Polyethylene terephthalate fiber is used as the nonwoven fabric.
- the material of the filament fiber constituting the nonwoven fabric includes natural polymer fibers such as cotton, rayon and cellulose, synthetic polymer fibers such as aliphatic polyamide, polyester, polyvinyl alcohol, polyimide and aromatic polyamide, and carbon.
- natural polymer fibers such as cotton, rayon and cellulose
- synthetic polymer fibers such as aliphatic polyamide, polyester, polyvinyl alcohol, polyimide and aromatic polyamide, and carbon.
- One or more kinds of fibers selected from fiber, glass fiber, and steel wire can be mixed.
- the material of the filament fiber constituting the nonwoven fabric includes natural polymer fibers such as cotton, rayon and cellulose, synthetic polymer fibers such as aliphatic polyamide, polyester, polyvinyl alcohol, polyimide and aromatic polyamide, In addition, one or more kinds of fibers selected from carbon fiber, glass fiber, and steel wire can be mixed.
- a predetermined range is provided for the length of the reinforcing layer 38. That is, the outermost portion in the tire radial direction of the reinforcing layer 38 located at the connecting portion 29 between the partition wall portion 24 and the tire inner side surface 17 serves as the folding bend point K of the reinforcing layer 38 and the folding bend point of the reinforcing layer 38.
- the length of the reinforcing layer 38 that extends to the inner bead portion 25 side along the reinforcing layer 38 is W1, and the K-force is also bent from the folding point K of the reinforcing layer 38 to the outer bead portion 16 side along the reinforcing layer 38.
- the length of the extending reinforcing layer 38 is W2, and the inner bead protruding end reference line parallel to the tire rotation axis direction passing through the bead base protruding end 25a of the inner bead portion 25 along the partition wall 24 through the reinforcing layer 38.
- Folding bending point K of reinforcement layer 38 when it is virtually extended to L1 K force is also the length of bulkhead 24 at the intersection of virtual extension line L2 of reinforcement layer 38 and inner bead protruding end reference line L1 to P1 FH1 and reinforcement layer 38 along the tire side 20 and the outer bead 16 bead base projecting end 16a outer bead projecting end parallel to the tire rotation axis direction parallel to the tire rotation axis Reference line L3 bending point when reinforcing layer is virtually extended K3 is also a virtual extension of reinforcing layer 38 10mm ⁇ W1 ⁇ FH1 and 10mm ⁇ W2 ⁇ FH2 when the length of the tire side 20 at the intersection of line L4 and outer bead protruding end reference line L3 is PH2 is FH2. It is preferable.
- the bead base protruding end 25a of the inner bead portion 25 is a portion of the bead base formed on the inner bead portion 25a that protrudes most inward in the tire radial direction (for example, the inner bead portion).
- the bead base protruding end 16a of the outer bead portion 16 is the portion of the bead base formed on the outer bead portion 16 that protrudes most inward in the tire radial direction (for example, the outer bead portion 16). Of the bead toe).
- the folding bend K force of the reinforcing layer 38 is also too short because the length W2 of the reinforcing layer 38 extending to the outer bead portion 16 side along the reinforcing layer 38 is too short.
- the strength of the connecting portion 29 between the partition wall 24 and the tire inner surface 17 cannot be secured, and the connection between the partition wall 24 and the tire inner surface 17 is not possible.
- the portion provided with the first carcass ply 32 and the portion provided with the second carcass ply 37 in the portion 29 may be separated.
- the folding bend point K force also has a predetermined numerical range for the length W 2 of the reinforcing layer 38 that extends to the outer bead portion 16 side along the reinforcing layer 38.
- the rim 12 includes a pair of outer bead seats 46 on which the outer bead portions 16 are disposed, and an inner bead seat 48 that is disposed on the inner side in the tire axial direction of the outer bead sheets 46.
- the outer bead sheet 46 is formed according to the inner diameter of the outer bead part 16, and the inner bead sheet 48 is formed according to the inner diameter of the inner bead part 25.
- the outer bead sheet 46 is set to have a smaller diameter than the outer bead sheet 46. ing.
- a flange 50 is formed to prevent the outer bead portion 16 from being pushed outward in the tire width direction.
- a gap 52 between the bead seat 46 and the bead seat 46 is formed with a step portion 52 that serves to prevent the inner bead portion 25 from being pushed outward in the tire width direction.
- a drop portion (well) 54 having a groove bottom diameter smaller than that of the inner bead sheet 48 is provided at the center of the rim 12 in the axial direction.
- the rim 12 has a first air valve 40 for filling the first auxiliary air chamber 28 with gas, a second air valve 41 for filling the second auxiliary air chamber 30 with gas, and a main air
- a third air valve 42 is provided for filling the chamber 26 with gas.
- the inner diameter RO of the outer bead portion 16 is set larger than the inner diameter RI of the inner bead portion 25, and the drop 54 is provided in the middle portion.
- the outer bead portion 16 and the inner bead portion 25 can be dropped into the drop 54, and the pneumatic tire 10 can be attached to the rim 12 in the same manner as a conventional pneumatic tire assembly. Assembly work becomes easy.
- the rim 12 has an inner bead portion 25 due to a difference in diameter between the outer bead seat 46 to which the outer bead portion 16 is attached and the inner bead seat 48 to which the inner bead portion 25 is attached. Since the step 52 is formed to prevent the tire from moving outward in the width direction of the tire, the inner bead 25 is pulled by the inner bead 25 when the rim is assembled. Rim assembly that does not need to be formed on the outer side in the tire width direction of 25 is facilitated.
- the first auxiliary air chamber 28, the main air chamber 26, and the first air chamber 26, which are partitioned by the partition wall portion 24, are provided between the pneumatic tire 10 and the rim 12. Since the secondary air chamber 30 is formed in the tire width direction, any of the puncture on the ground contact surface due to the tread of the tread portion 22 or the puncture of the tire tire side portion 20 due to curb rubbing etc. Since the two non-punctured air chambers support the load, there is a slight decrease in tire height, slight longitudinal stability, and poor vibration comfort. Can do.
- the internal pressure of the first auxiliary air chamber 28, the internal pressure of the second auxiliary air chamber 30, and the internal pressure of the main air chamber 26 are the same. Even one may be different from each other.
- the internal pressure of the first sub-air chamber 28, the internal pressure of the second sub-air chamber 30, and the internal pressure of the main air chamber 26 can be set to arbitrary different pressures.
- first sub-air chamber 28 and the second sub-air chamber 30 are filled with air to increase the internal pressure, the lateral stiffness and longitudinal stiffness of the tire can be increased. Vibration on bad roads Driving stability can be improved while improving riding comfort and grip on snowy roads.
- the pneumatic tire 10 of the present example is disposed inside the tire of the first carcass ply 32 and outside the tire of the second carcass ply 37, and also has a tire inner surface 17 of the partition wall 24.
- a pair of left and right reinforcing layers 38 are provided so as to continue from the partition wall portion 24 to the tire side portion 20 via the connecting portion 29.
- the strength of the connecting portion 29 between the partition wall 24 and the tire inner surface 17 can be improved by the reinforcing layer 38. Therefore, even if the tire is repeatedly squeezed as the tire rolls, the partition wall portion and the tie It is possible to prevent the portion where the first carcass ply is provided and the portion where the second carcass ply is provided from being separated at the connecting portion with the inner side surface.
- the durability of the connecting portion 29 between the partition wall portion 24 and the tire inner surface 17 can be improved by providing the reinforcing layer 38.
- the first carcass ply is provided at the connecting portion between the partition wall portion and the tire inner side surface by improving the strength of the connecting portion 29 between the partition wall portion 24 and the tire inner side surface 17 by the reinforcing layer 38 even when traveling on the road. Separation between the portion and the portion provided with the second carcass ply can be suppressed. Like this, high Durability at high speed can also be improved in each stage as compared with the conventional case.
- FIG. 3 is a diagram showing Example 2 of the present invention, and is a cross-sectional view showing a configuration of a tire 'rim assembly in which a pneumatic tire (size: 225Z55R17) is mounted on a rim. Note that the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.
- both ends of the second carcass ply 37 in the tire width direction are wound around the pair of inner bead cores 31 from the tire outer side toward the inner side. It is locked.
- Other configurations are the same as those in the first embodiment.
- the tire 'rim assembly 214 of the first comparative example shown in Fig. 4 is the same as the tire' rim assembly 14 force of this example except for the reinforcing layer 38, and has other configurations!
- the structure is the same as that of the tire / rim assembly of this example.
- the tire 'rim assembly according to the second comparative example has the reinforcing layer 38 in the same manner as this example, but the inner side of the reinforcing layer 38 along the reinforcing layer 38 from the bent bending point K. Bead part 25
- the length Wl of the reinforcing layer 38 extending to the side is 7 mm in Comparative Example 1 and 7 mm in Comparative Example 2.
- the length Wl of the reinforcing layer 38 extends along the reinforcing layer 38 from the folding point K of the reinforcing layer 38.
- the length W2 of the reinforcing layer 38 extending to the outer bead portion 16 side is 7 mm in Comparative Example 1, and 30 mm in Comparative Example 2. That is, the length of the reinforcing layer 38 of the tire / rim assembly according to the second comparative example is outside the numerical range of the present invention.
- the high-speed durability test was performed based on the JIS standard high-speed performance test B! /, And the high-speed durability index represents the failure speed of the tire rim assembly 214 of the first comparative example as 100. . In other words, the larger the index! /, The higher the failure limit speed and the better the durability at high speeds.
- the test tires are for passenger cars and all have a size of 225Z55R17. Table 1 shows the results of the high-speed durability test.
- the strength of the connecting portion 29 between the partition wall portion 24 and the tire inner surface 17 is increased as the length of the reinforcing layer 38 is increased. It was revealed that it could be further increased and that high-speed durability could be improved.
- FIG. 5 is a cross-sectional view showing a configuration of a tire rim assembly in which a pneumatic tire (size: 225Z5 5R17) is mounted on a rim, showing Embodiment 3 of the present invention.
- a pneumatic tire size: 225Z5 5R17
- symbol is attached
- the ground contact width of the tread portion 22 on a flat surface in a state where the specified internal pressure is filled and the specified load is applied is TW, and along the tire side portion 20 and the tread portion 22
- the intersection with the second virtual reference line L2 is the connecting part 29 of the tire side part 20 and the tread part 22 and the partition part 24, and the dimension in the tire width direction between one and the other of the connecting parts 29 is KW. If so, it is configured to satisfy TW ⁇ KW.
- the connecting portion 29 between the tire side portion 20 and the tread portion 22 and the partition wall portion 24 is located on the normal 22a force passing through the grounding end of the tread portion 22 or on the outer side in the tire width direction than that. ing.
- the contact width of the tread portion 22 is measured with the following specified load and specified internal pressure.
- the specified load is the maximum load (maximum load capacity) of a single wheel in the applicable size (ply rating) described in the following standard.
- the specified internal pressure is described in the following standard. Air pressure corresponding to the maximum load (maximum load capacity) of a single wheel in the applicable size.
- the connecting portion 29 is configured to be positioned on the outer side in the tire radial direction from 1Z2 of the tire height TH.
- the first auxiliary air chamber 28 and the second auxiliary air chamber 30 formed by the tire side portion 20 and the partition wall portion 24 become extremely small.
- the first side formed by the tire side portion 20 and the partition wall portion 24 is used. This is preferable because the auxiliary air chamber 28 and the second auxiliary air chamber 30 can be sufficiently secured.
- the ground contact width of the tread portion 22 on the flat surface in a state where the specified internal pressure is filled and the specified load is loaded is TW
- the intersection with the second virtual reference line L2 passing through the intermediate point P2 in the thickness direction of the tire is the tire side portion 20 and the tread portion 22 and the connecting portion 29 of the partition wall portion 24, and one of the connecting portions 29 and the other It is configured to satisfy TW ⁇ KW where the dimension in the tire width direction is KW.
- the connecting portion 29 between the tire side portion 20 and the tread portion 22 and the partition wall portion 24 is located on the normal 22a force passing through the grounding end of the tread portion 22 or on the outer side in the tire width direction than that. ing.
- the tire side portion 20 and the connecting portion 29 of the tread portion 22 and the partition wall portion 24 are positioned on the inner side in the tire radial direction of the normal line 22a passing through the ground contact end of the tread portion 22 as in the conventional case.
- the connecting portion 29 force S tread portion 2 2 of the tire side portion 20 and the tread portion 22 and the partition wall portion 24 hardly by connexion road force also forces transmitted to the partition wall 24 Therefore, the force applied to the partition wall 24 from the road surface can be reduced. Therefore, the partition wall portion 24 can be prevented from being damaged, and the durability of the tire can be improved as compared with the conventional case.
- FIG. 6 is a diagram showing Example 4 of the present invention, and is a cross-sectional view showing a configuration of a tire 'rim assembly in which a pneumatic tire (size: 225Z55R17) is mounted on a rim.
- a pneumatic tire size: 225Z55R17
- FIG. 6 is a diagram showing Example 4 of the present invention, and is a cross-sectional view showing a configuration of a tire 'rim assembly in which a pneumatic tire (size: 225Z55R17) is mounted on a rim.
- the same components as those in the third embodiment are denoted by the same reference numerals, and the description thereof is omitted.
- both ends of the second carcass ply 37 in the tire width direction are wound around the pair of inner bead cores 31 from the tire outer side toward the inner side. It is locked.
- Other configurations are the same as those in the third embodiment.
- the conventional tire 'rim assembly 714 shown in Fig. 9 is the same as the tire' rim assembly 31 of this example.
- 414 is obtained by removing the partition wall 24 and the second carcass ply 37, and other configurations are the same as those of the tire 'rim assemblies 314, 414 of this example.
- the tire / rim assembly 514 according to Comparative Example 1 shown in FIG. 7 has a partition wall portion 24 as in the present example.
- the relation between TH and dimension KD is such that KD ⁇ 1Z2TH.
- the connecting portion 29 is 1 with the tire height TH.
- the tire / rim assembly 614 according to Comparative Example 2 shown in FIG. 8 has a partition wall portion 24 as in the present example.
- the tire 'rim assembly 614 according to Comparative Example has a specified internal pressure.
- the relationship between the ground contact width TW of the tread portion 22 on a flat surface and the dimension KW in the tire width direction between one and the other of the connecting portions 29 in a state where a specified load is applied and TW> KW It is configured as follows.
- the tire side portion 20, the tread portion 22, and the connecting portion 29 of the partition wall portion 24 are located within the ground tread of the tread portion 22,
- the relationship between the width TW and the dimension KW is outside the numerical range of the present invention.
- each measured value is represented as 100 in the past. In other words, the larger the index, the greater the lateral stiffness and the better the tire.
- the high-speed durability test is based on the JIS standard high-speed performance test B, and the high-speed durability index represents the failure speed of the conventional tire 'rim assembly as 100. In other words, the higher the index, This means that the tire has good durability at high speeds with a high failure limit speed.
- the high-speed durability index represents the failure speed of the conventional tire 'rim assembly as 100. In other words, the higher the index, This means that the tire has good durability at high speeds with a high failure limit speed.
- test tires are for passenger cars and all are 225Z55R17.
- Table 2 shows the results of the high-speed durability test.
- the tire 'rim assembly 514 of Comparative Example 1 is configured to have a KD of 1Z2TH, and the relationship between the tire height TH and the dimension KD is outside the numerical range of the present invention.
- Table 2 the tire 'rim assembly 514 of Comparative Example 1 is superior in vertical rigidity, but it cannot secure the volume of the first auxiliary air chamber 28 and the second auxiliary air chamber 30 and thus has lateral rigidity.
- it was inferior to the conventional one, and the high-speed durability remained the same as the conventional tire 'rim assembly 714.
- the connecting portion 29 of the tire side portion 20 and the tread portion 22 and the partition wall portion 24 is located in the ground tread surface of the tread portion 22, and the ground contact width TW
- the relationship with the dimension KW is outside the numerical range of the present invention.
- the tire side portion 20 and the connection portion 29 between the tread portion 22 and the partition wall portion 24 are grounded of the tread portion 22. Since it is located on the outer side in the tire width direction of the tread surface, it is difficult for the force from the road surface to be transmitted to the partition wall part 24. The force applied to the partition wall 24 can be reduced. For this reason, as shown in Table 2, the tire 'rim assemblies 314 and 414 of the examples (1 to 4) are superior in the high-speed durability of the tire as compared with the tire' rim assembly 714 of the conventional example. As a result.
- the tire 'rim assemblies 314 and 414 of the examples (1 to 4) are smaller in the vertical rigidity than the tire' rim assembly 714 according to the conventional example, and have a lateral rigidity. As compared with the conventional tire 'rim assembly 714, this was larger. From this, it is clear that the tire 'rim assemblies 314 and 414 of the examples (1 to 4) are tires having a better rigidity and lance than the tire' rim assemblies 714 according to the conventional example. It was.
- the present invention has the structure as described above. As described above, the present invention is not only used as a tire for a passenger car, but also suitable for a large vehicle such as a truck, an aircraft, and the like. The range of use is extremely wide.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05816641A EP1829711B1 (en) | 2004-12-20 | 2005-12-19 | Pneumatic tire and tire/rim assembly |
ES05816641T ES2396369T3 (es) | 2004-12-20 | 2005-12-19 | Cubierta neumática y conjunto de cubierta/llanta |
US11/793,214 US7784512B2 (en) | 2004-12-20 | 2005-12-19 | Pneumatic tire and tire/rim assembly |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004368143A JP4521261B2 (ja) | 2004-12-20 | 2004-12-20 | 空気入りタイヤ、及びタイヤ・リム組立体 |
JP2004-368143 | 2004-12-20 | ||
JP2004371612A JP4521265B2 (ja) | 2004-12-22 | 2004-12-22 | 空気入りタイヤ、及びタイヤ・リム組立体 |
JP2004-371612 | 2004-12-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006068085A1 true WO2006068085A1 (ja) | 2006-06-29 |
Family
ID=36601685
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/023259 WO2006068085A1 (ja) | 2004-12-20 | 2005-12-19 | 空気入りタイヤ、及びタイヤ・リム組立体 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7784512B2 (ja) |
EP (1) | EP1829711B1 (ja) |
ES (1) | ES2396369T3 (ja) |
WO (1) | WO2006068085A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006264493A (ja) * | 2005-03-23 | 2006-10-05 | Bridgestone Corp | 空気入りタイヤ |
JP2015037901A (ja) * | 2013-04-16 | 2015-02-26 | 株式会社サンフロイント | タイヤの構造 |
CN113165437A (zh) * | 2018-12-17 | 2021-07-23 | 米其林集团总公司 | 包括加强结构的车辆用轮胎 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007223476A (ja) * | 2006-02-23 | 2007-09-06 | Bridgestone Corp | 空気入りタイヤ内圧制御装置、空気入りタイヤ制御システム、車両及び空気入りタイヤ内圧制御方法 |
JP5320811B2 (ja) * | 2008-05-13 | 2013-10-23 | 富士通株式会社 | Rake受信機、基地局装置、受信制御方法および受信制御プログラム |
US8020596B1 (en) * | 2008-10-16 | 2011-09-20 | Glenn Arthur Morrison | High efficiency integrated automotive wheel |
RU2508993C1 (ru) * | 2012-06-20 | 2014-03-10 | Александр Александрович Панфилов | Шина транспортного средства |
FR3087085B1 (fr) * | 2018-10-12 | 2021-01-29 | Otico | Rouleau agricole autonettoyant |
WO2020079366A1 (fr) * | 2018-10-18 | 2020-04-23 | Compagnie Generale Des Etablissements Michelin | Pneumatique pour vehicule avec structure porteuse |
CN111439072A (zh) * | 2020-04-03 | 2020-07-24 | 山东玲珑轮胎股份有限公司 | 一种单侧双胎侧壁安全防爆轮胎 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003039914A (ja) * | 2001-08-01 | 2003-02-13 | Bridgestone Corp | 空気入りタイヤ、及びタイヤ・リム組立体 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4200735A1 (de) * | 1992-01-14 | 1993-07-15 | Francesco Monteleone | Schlauchloser luftgefuellter reifen |
US6615888B2 (en) * | 2001-10-15 | 2003-09-09 | Douglas B. Elkow | Variable-diameter wheel-and-tire apparatus for motor vehicles |
-
2005
- 2005-12-19 ES ES05816641T patent/ES2396369T3/es active Active
- 2005-12-19 EP EP05816641A patent/EP1829711B1/en not_active Expired - Fee Related
- 2005-12-19 US US11/793,214 patent/US7784512B2/en not_active Expired - Fee Related
- 2005-12-19 WO PCT/JP2005/023259 patent/WO2006068085A1/ja active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003039914A (ja) * | 2001-08-01 | 2003-02-13 | Bridgestone Corp | 空気入りタイヤ、及びタイヤ・リム組立体 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006264493A (ja) * | 2005-03-23 | 2006-10-05 | Bridgestone Corp | 空気入りタイヤ |
JP2015037901A (ja) * | 2013-04-16 | 2015-02-26 | 株式会社サンフロイント | タイヤの構造 |
CN113165437A (zh) * | 2018-12-17 | 2021-07-23 | 米其林集团总公司 | 包括加强结构的车辆用轮胎 |
Also Published As
Publication number | Publication date |
---|---|
EP1829711A1 (en) | 2007-09-05 |
US7784512B2 (en) | 2010-08-31 |
EP1829711A4 (en) | 2011-07-20 |
EP1829711B1 (en) | 2012-09-19 |
US20080135153A1 (en) | 2008-06-12 |
ES2396369T3 (es) | 2013-02-21 |
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