WO2010095654A1 - タイヤ、及びタイヤの製造方法 - Google Patents
タイヤ、及びタイヤの製造方法 Download PDFInfo
- Publication number
- WO2010095654A1 WO2010095654A1 PCT/JP2010/052360 JP2010052360W WO2010095654A1 WO 2010095654 A1 WO2010095654 A1 WO 2010095654A1 JP 2010052360 W JP2010052360 W JP 2010052360W WO 2010095654 A1 WO2010095654 A1 WO 2010095654A1
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- WO
- WIPO (PCT)
- Prior art keywords
- tire
- reinforcing cord
- cord member
- outer peripheral
- frame body
- Prior art date
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Classifications
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- 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
- B60C5/02—Inflatable pneumatic tyres or inner tubes having separate inflatable inserts, e.g. with inner tubes; Means for lubricating, venting, preventing relative movement between tyre and inner tube
- B60C5/04—Shape or construction of inflatable inserts
- B60C5/08—Shape or construction of inflatable inserts having reinforcing means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/08—Building tyres
- B29D30/10—Building tyres on round cores, i.e. the shape of the core is approximately identical with the shape of the completed tyre
- B29D30/16—Applying the layers; Guiding or stretching the layers during application
- B29D30/1628—Applying the layers; Guiding or stretching the layers during application by feeding a continuous band and winding it helically, i.e. the band is fed while being advanced along the core axis, to form an annular element
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/08—Building tyres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/08—Building tyres
- B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
- B29D30/28—Rolling-down or pressing-down the layers in the building process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/08—Building tyres
- B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
- B29D30/30—Applying the layers; Guiding or stretching the layers during application
- B29D30/3028—Applying the layers; Guiding or stretching the layers during application by feeding a continuous band and winding it helically, i.e. the band is fed while being advanced along the drum axis, to form an annular element
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/52—Unvulcanised treads, e.g. on used tyres; Retreading
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/52—Unvulcanised treads, e.g. on used tyres; Retreading
- B29D30/54—Retreading
- B29D30/56—Retreading with prevulcanised tread
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- 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
- B60C5/007—Inflatable pneumatic tyres or inner tubes made from other material than rubber
-
- 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
- B60C5/01—Inflatable pneumatic tyres or inner tubes without substantial cord reinforcement, e.g. cordless tyres, cast tyres
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- 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
- B60C5/18—Sectional casings, e.g. comprising replaceable arcuate parts
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- 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
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- 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
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/08—Building tyres
- B29D2030/086—Building the tyre carcass by combining two or more sub-assemblies, e.g. two half-carcasses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/08—Building tyres
- B29D30/10—Building tyres on round cores, i.e. the shape of the core is approximately identical with the shape of the completed tyre
- B29D30/16—Applying the layers; Guiding or stretching the layers during application
- B29D2030/1664—Details, accessories or auxiliary operations not provided for in the other subgroups of B29D30/00
- B29D2030/1678—Details, accessories or auxiliary operations not provided for in the other subgroups of B29D30/00 the layers being applied being substantially continuous, i.e. not being cut before the application step
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
- B29D2030/383—Chemical treatment of the reinforcing elements, e.g. cords, wires and filamentary materials, to increase the adhesion to the rubber
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- 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
- B60C2009/2209—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 characterised by tension of the cord during 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
- B60C2015/0614—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead characterised by features of the chafer or clinch portion, i.e. the part of the bead contacting the rim
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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
- Y10T152/10819—Characterized by the structure of the bead portion of the tire
Definitions
- the present invention relates to a tire to be mounted on a rim, and a method for manufacturing the tire, and relates to a tire at least partly formed of a resin material, particularly a thermoplastic material, and a method for manufacturing the tire.
- pneumatic tires made of rubber, organic fiber materials, steel members, and the like are used in vehicles such as passenger cars.
- the used rubber has a limited recycling purpose, and has been disposed of by incineration, crushing it, and using it as a road paving material.
- Patent Document 1 discloses a pneumatic tire formed using a thermoplastic polymer material.
- a tire using a thermoplastic polymer material is easier to manufacture and less expensive than a conventional rubber tire, but the tire frame does not have a uniform thermoplastic material that does not contain a reinforcing member such as a carcass ply.
- a reinforcing layer in which a reinforcing cord is continuously spirally wound in the tire circumferential direction is provided on the outer surface in the tire radial direction at the bottom of the tread of the tire body (tire frame body), and cut-resistant And puncture resistance are improved.
- a reinforcing layer is formed by directly spirally winding a reinforcing cord around a tire skeleton formed of a thermoplastic polymer material, and a tread is formed radially outside the reinforcing layer, an adhesive is applied to the reinforcing cord. Even if it is used, it cannot be said that the adhesiveness is sufficient, and air remains around the reinforcing cord, and the reinforcing cord moves during running, and there is a possibility that the durability of the tire is lowered due to separation between members. .
- the present invention has been made to solve the above problems, and provides a tire formed of a resin material, in particular, a thermoplastic material, which has improved durability by suppressing air entry, and a method of manufacturing the tire.
- the purpose is to do.
- the invention according to claim 1 is a tire including an annular tire skeleton formed of a resin material and attached to a rim, and is wound around an outer peripheral portion of the tire skeleton to form a reinforcing cord layer. And a reinforcing cord member having at least a portion embedded in the outer peripheral portion in a cross-sectional view along the axial direction of the tire skeleton.
- the reinforcing cord member is formed by winding the reinforcing cord member around the outer peripheral portion of the tire skeleton formed of the resin material, puncture resistance, cut resistance, and The circumferential rigidity of the tire (tire frame) is improved.
- the circumferential rigidity by improving the circumferential rigidity, creep of the tire skeleton formed of a resin material (a phenomenon in which the plastic deformation of the tire skeleton increases with time under a certain stress) is suppressed.
- the reinforcing cord member is embedded in the outer peripheral portion of the tire skeleton formed of a resin material in a cross-sectional view along the axial direction of the tire skeleton, air entry is suppressed.
- the movement of the reinforcing cord member due to input during traveling is suppressed.
- the tire constituent member is provided on the outer peripheral portion of the tire skeleton body so as to cover the entire reinforcement cord member, the movement of the reinforcement cord member is suppressed.
- the reinforcing cord member is wound around the outer periphery of the tire frame body, the rigidity against the air pressure from the radially inner side is improved.
- the invention described in claim 2 is a tire according to the invention described in claim 1, wherein a tread made of a material more resistant to abrasion than the resin material is provided on the radially outer side of the reinforcing cord layer.
- the tread that contacts the road surface is made of a material that is more resistant to abrasion than the resin material, the abrasion resistance is improved.
- the reinforcing cord member has a cross-sectional view along the axial direction of the tire frame, and the diameter of the tire is 1/5 or more.
- the reinforcing cord member since the reinforcing cord member has a diameter of 1/5 or more of the diameter embedded in the outer peripheral portion of the tire frame body in a cross-sectional view along the axial direction of the tire frame body, the introduction of air is effective. Thus, the movement of the reinforcing cord member due to input during traveling is further suppressed.
- the tire frame has a bead portion that contacts a bead seat and a rim flange of the rim on a radially inner side.
- an annular bead core made of a metal material is embedded in the bead portion.
- the tire frame has a bead portion that is a fitting portion with the rim, and further, an annular bead core made of a metal material is embedded in the bead portion. Similar to a conventional rubber pneumatic tire, the tire frame, that is, the tire is firmly held against the rim.
- the invention according to claim 5 is the tire according to claim 4, wherein a seal portion made of a material softer than the resin material is provided in a portion of the bead portion that contacts the rim. is there.
- the seal portion made of a material softer than the resin material is provided in the portion that comes into contact with the rim, the sealing property (airtightness) between the tire (tire frame body) and the rim is provided. Improved). For this reason, the air leak in a tire is further suppressed compared with the case where it seals with a rim
- the invention according to claim 6 is a tire according to any one of claims 1 to 5, wherein the resin material is thermoplastic.
- the tire can be easily manufactured as compared with the case where the resin material is made thermosetting.
- a reinforcing cord member is embedded while melting or softening an outer peripheral portion of an annular tire skeleton formed of a thermoplastic material, and the reinforcing cord member is disposed on the outer peripheral portion. It is a manufacturing method of a tire which has a cord member winding process to wind.
- the reinforcing cord member in the cord member winding step, at least a part of the reinforcing cord member is buried while melting or softening the outer peripheral portion of the tire frame formed of the thermoplastic material. At least a part of the reinforcing cord member is welded (adhered) to the molten or softened thermoplastic material. Thereby, air entering between the outer peripheral portion of the tire frame body and the reinforcing cord member is suppressed in a cross-sectional view along the axial direction of the tire frame body. Moreover, after the fixed time has passed and the portion where the reinforcing cord member is embedded is cooled and solidified, the embedded reinforcing cord member is difficult to come off.
- the invention according to claim 8 is the invention according to claim 7, wherein, in the cord member winding step, the reinforcement is provided on an outer peripheral portion of the tire frame body in a sectional view along an axial direction of the tire frame body.
- the reinforcing cord member is embedded in the outer peripheral portion of the tire frame body by 1/5 or more of the diameter in a cross-sectional view along the axial direction of the tire frame body, the air entering at the time of manufacture is reduced. Effectively suppressed. Moreover, it becomes difficult to remove the embedded reinforcing cord member.
- the invention according to claim 9 is the method of manufacturing a tire according to claim 7 or 8, wherein, in the cord member winding step, the reinforcing cord member is heated.
- the contact portion melts or softens when the heated reinforcing cord member is brought into contact with the outer peripheral portion of the tire skeleton. It becomes easy to embed in the outer periphery of the skeleton body.
- a tenth aspect of the present invention is the invention according to any one of the seventh to ninth aspects, wherein in the cord member winding step, the reinforcing cord member is embedded in an outer peripheral portion of the tire frame body. Is a method for manufacturing a tire.
- the invention according to claim 11 is the invention according to any one of claims 7 to 10, wherein the tension of the reinforcing cord member is adjusted to a predetermined value in the cord member winding step.
- the reinforcing cord member is spirally wound around the outer periphery of the tire frame body.
- the reinforcing cord member is spirally wound around the outer periphery of the tire frame while adjusting the tension of the reinforcing cord member to a predetermined value.
- the amount embedded in the outer periphery of the tire frame can be adjusted, and the reinforcing cord member can be wound around the outer periphery of the tire frame while suppressing meandering.
- the invention according to claim 12 is the invention according to any one of claims 7 to 11, wherein, in the cord member winding step, the reinforcing cord member is pressed against an outer peripheral portion of the tire frame body.
- the reinforcing cord member since the reinforcing cord member is spirally wound while pressing the reinforcing cord member against the outer peripheral portion of the tire frame body, the reinforcing cord member is wound on the outer peripheral portion of the tire frame body. The amount of burial can be adjusted.
- the invention according to claim 13 is the invention according to any one of claims 7 to 12, wherein in the cord member winding step, after the reinforcing cord member is embedded, an outer periphery of the tire frame body This is a tire manufacturing method in which the melted or softened part of the part is forcibly cooled.
- the melted or softened portion of the outer peripheral portion of the tire frame body is forcibly cooled, so that the outer peripheral portion of the tire frame body is melted or softened. Immediately cooled and solidified. That is, since cooling is performed faster than natural cooling, deformation of the outer peripheral portion of the tire frame body is suppressed, and movement of the reinforcing cord member is suppressed.
- the tire of the present invention since the tire of the present invention has the above-described configuration, air entry is suppressed and durability is improved.
- the tire manufacturing method of the present invention can manufacture a tire in which air entry is suppressed and durability is improved.
- the tire 10 of the present embodiment has a cross-sectional shape that is substantially the same as a conventional general rubber pneumatic tire.
- the tire 10 includes a pair of bead portions 12 (see FIG. 1B) that contact the bead seat 21 and the rim flange 22 of the rim 20, and side portions 14 that extend from the bead portion 12 outward in the tire radial direction.
- An annular tire case 23 (an example of a tire skeleton body) including a crown portion 16 (outer peripheral portion) that connects a tire radial direction outer end of the side portion 14 and a tire radial direction outer end of the other side portion 14. Yes.
- the tire case 23 of the present embodiment is formed of a single resin material, but the present invention is not limited to this configuration, and the tire case 23 is similar to a conventional general rubber pneumatic tire.
- a resin material having different characteristics may be used for each part (side part 14, crown part 16, bead part 12, etc.).
- thermosetting resin having a rubber-like elasticity
- thermoplastic resin a thermoplastic elastomer (TPE), or the like
- TPE thermoplastic elastomer
- thermoplastic resin examples include urethane resin, olefin resin, vinyl chloride resin, and polyamide resin.
- thermosetting resin examples include phenol resin, urea resin, melamine resin, epoxy resin, and polyester resin.
- thermoplastic elastomer examples include an amide thermoplastic elastomer (TPA), an ester thermoplastic elastomer (TPC), an olefin thermoplastic elastomer (TPO), a styrene thermoplastic elastomer (TPS) defined in JIS K6418, Examples thereof include urethane-based thermoplastic elastomer (TPU), crosslinked thermoplastic rubber (TPV), and other thermoplastic elastomers (TPZ).
- TPU urethane-based thermoplastic elastomer
- TPV crosslinked thermoplastic rubber
- TPZ thermoplastic elastomers
- As the resin material it is preferable to use a thermoplastic elastomer in consideration of elasticity required during traveling, moldability during manufacturing, and the like.
- an annular bead core 18 made of a steel cord is embedded as in a conventional general pneumatic tire.
- the present invention is not limited to this configuration, and the bead core 18 may be omitted if the rigidity of the bead portion 12 is ensured and there is no problem in fitting with the rim 20.
- the bead core 18 is not limited to a steel cord, and may be formed of an organic fiber cord or the like.
- An annular seal layer 24 (an example of a seal portion) is formed. This seal layer 24 may also be formed in a portion that contacts the bead sheet 21.
- the soft material for forming the seal layer 24 rubber as an example of an elastic body is preferable, and in particular, the same type of rubber as that used on the outer surface of the bead portion of a conventional general rubber pneumatic tire is used. preferable.
- the sealing layer 24 may be omitted if only the resin material can secure the sealing property with the rim 20, and other types of resin materials that are softer than the resin material forming the tire case 23 may be used. It may be used.
- the crown portion 16 has a reinforcing cord 26 having a rigidity higher than that of the resin material forming the tire case 23, at least partially in a sectional view along the axial direction of the tire case 23.
- the reinforcing cord layer 28 (shown by a broken line in FIG. 2) is formed by being spirally wound in a state where the wire is embedded. Further, the reinforcing cord 26 is in a state where the embedded portion is in close contact with the resin material. Further, the reinforcing cord 26 may be a monofilament (single wire) such as a metal fiber or an organic fiber, or a multifilament (twisted wire) obtained by twisting these fibers.
- the reinforcement cord 26 of this embodiment is a steel cord twisted with steel fibers.
- the burying amount L of the reinforcing cord 26 is preferably 1/5 or more of the diameter D of the reinforcing cord 26, and more preferably more than 1/2.
- the entire reinforcing cord 26 is embedded in the crown portion 16.
- the embedment amount L of the reinforcing cord 26 exceeds 1/2 of the diameter D of the reinforcing cord 26, the reinforcing cord 26 is difficult to jump out of the embedded portion due to its dimensions.
- the surface (outer peripheral surface) becomes flat, and even if a member is placed thereon, it is difficult for air to enter.
- the reinforcing cord layer 28 corresponds to a belt disposed on the outer peripheral surface of the carcass of a conventional rubber pneumatic tire.
- the rubber used for the tread 30 is preferably the same type of rubber as that used in conventional rubber pneumatic tires.
- a tread formed of another type of resin material that is more excellent in wear resistance than the resin material forming the tire case 23 may be used.
- the tread 30 is formed with a tread pattern including a plurality of grooves on the ground contact surface with the road surface in the same manner as a conventional rubber pneumatic tire.
- the tire case 23 is formed of a thermoplastic material (for example, a thermoplastic resin, a thermoplastic elastomer, or the like) among the resin materials.
- a thermoplastic material for example, a thermoplastic resin, a thermoplastic elastomer, or the like
- FIG. 3 is a perspective view of the tire support 34 of the molding machine 32 used when forming the tire 10.
- the molding machine 32 has a shaft 36 arranged horizontally, and a geared motor (not shown) that rotates the shaft 36.
- a tire support portion 34 for supporting the tire case 23 is provided on the end portion side of the shaft 36.
- the tire support portion 34 has a cylinder block 38 fixed to a shaft 36, and a plurality of cylinder rods 40 extending radially outward are provided at equal intervals in the circumferential direction.
- a tire support piece 42 having an arcuate curved surface 42A whose outer surface is set substantially equal to the radius of curvature of the inner surface of the tire case.
- 3A shows a state where the protruding amount of the cylinder rod 40 is the smallest
- FIG. 3B shows a state where the protruding amount of the cylinder rod 40 is the largest.
- Each cylinder rod 40 can project the same amount in the same direction in conjunction with each other.
- thermoplastic material 45 for welding is preferably the same type as the thermoplastic material forming the tire case 23, but may be of a different type as long as it can be welded. In the present embodiment, the thermoplastic material forming the tire case 23 and the welding thermoplastic material 45 are of the same type.
- a leveling roller 48 that presses and leveles the welding thermoplastic material 45 attached to the case divided body 23A of the tire case 23, and a cylinder that moves the leveling roller 48 in the vertical direction.
- a device 50 is arranged.
- the cylinder device 50 is supported on the support column 52 of the extruder 44 through a frame (not shown).
- the extruder 44 is movable in a direction parallel to the shaft 36 of the molding machine 32 along a guide rail 54 disposed on the floor surface.
- a cord supply device 56 that supplies the reinforcing cord 26 for forming the reinforcing cord layer 28 is movably mounted on the guide rail 54.
- the cord supply device 56 is disposed on the reel 58 around which the reinforcement cord 26 is wound, the cord heating device 59 disposed on the downstream side of the reel 58 in the cord conveyance direction, and the reinforcement cord 26 on the downstream side in the conveyance direction.
- a second cylinder device 66 that moves the metal cooling roller 64 in a direction in which the cooling roller 64 is moved toward and away from the outer peripheral surface of the crown portion 16.
- the surfaces of the pressing roller 60 and the cooling roller 64 are coated with a fluororesin (in this embodiment, Teflon (registered trademark)) in order to suppress adhesion of a molten or softened thermoplastic material.
- the cord supply device 56 has two rollers, that is, the pressing roller 60 and the cooling roller 64, but the present invention is not limited to this configuration, and only one of the rollers (that is, The structure which has 1 roller) may be sufficient.
- the cord heating device 59 is provided at the tip of the heating box 74, the heater 70 and the fan 72 that generate hot air, the heating box 74 through which the hot air is supplied to the internal space and the reinforcing cord 26 passes through the internal space. And a discharge port 76 through which the heated reinforcing cord 26 is discharged. Further, the cord supply device 56 is movable in the direction of the rotation axis of the tire case 23.
- the tire inner surface support ring 68 is formed of a thin metal plate, it can be bent and deformed and easily inserted into the case divided body 23A.
- the diameter of the tire support portion 34 is enlarged, and the tire inner surface support ring 68 is held from the inside by a plurality of tire support pieces 42.
- the extruder 44 is moved, and the nozzle 46 is disposed above the abutting portion of the case divided body 23A. Then, while rotating the tire support portion 34 in the direction of arrow R, the welded thermoplastic material 45 is pushed out from the nozzle 46 toward the joining portion, and the molten welding thermoplastic material 45 is adhered along the joining portion. .
- the adhering thermoplastic material 45 for welding is leveled by the leveling roller 48 disposed on the downstream side and is welded to the outer peripheral surfaces of both case division bodies 23A.
- the welding thermoplastic material 45 is gradually solidified by natural cooling, and one case divided body 23A and the other case divided body 23A are welded by the welding thermoplastic material 45, and these members are integrated into the tire case 23. Is formed.
- the heated reinforcing cord 26 passes through the discharge port 76 and is wound spirally around the outer peripheral surface of the crown portion 16 of the tire case 23 rotating in the arrow R direction with a certain tension.
- the thermoplastic material in the contact portion melts or softens, and at least a part of the heated reinforcing cord 26 contacts the outer peripheral surface of the crown portion 16. Buried.
- the heated reinforcing cord 26 is embedded in the molten or softened thermoplastic material, the thermoplastic material and the reinforcing cord 26 are in a state where there is no gap, that is, a close contact state.
- the tension applied to the reinforcement cord 26 is adjusted by applying a brake to the reel 58 that rotates following the tire case 23.
- the reinforcement cord 26 is operated while applying a certain tension.
- the meandering of the reinforcing cord 26 can be suppressed, and the embedment amount of the reinforcing cord 26 can also be adjusted.
- the tension is adjusted by applying a brake to the reel 58, but the tension may be adjusted by providing a tension adjusting roller in the middle of the conveyance path of the reinforcing cord 26.
- the heated reinforcing cord 26 is pressed by the pressing roller 60 and embedded to a greater depth immediately after at least a part of the reinforcing cord 26 is embedded in the outer peripheral surface of the crown portion 16. At this time, the periphery of the embedded portion is leveled by the pressing roller 60, and the air that has entered when the reinforcing cord 26 is embedded is also pushed out. The pressing roller 60 is driven to rotate with respect to the tire case 23.
- thermoplastic material in which the reinforcing cord 26 is embedded is cooled before the reinforcing cord 26 moves, so that the reinforcing cord 26 can be disposed with high precision and the reinforcing cord 26 is embedded. It is possible to suppress the deformation of the thermoplastic material in the part.
- the cooling roller 64 is driven to rotate with respect to the tire case 23.
- the burying amount L of the reinforcing cord 26 can be adjusted by the heating temperature of the reinforcing cord 26, the tension applied to the reinforcing cord 26, the pressing force by the pressing roller 60, and the like.
- the embedding amount L of the reinforcing cord 26 is set to be 1/5 or more of the diameter D of the reinforcing cord 26.
- the burying amount L of the reinforcing cord 26 is more preferably more than 1/2 of the diameter D, and most preferably the entire reinforcing cord 26 is embedded.
- the reinforcing cord layer 28 is formed on the outer peripheral side of the crown portion 16 of the tire case 23 by winding the heated reinforcing cord 26 while being embedded in the outer peripheral surface of the crown portion 16.
- the belt-shaped tread 30 that has been vulcanized is wound around the outer peripheral surface of the tire case 23 by one turn, and the tread 30 is bonded to the outer peripheral surface of the tire case 23 using an adhesive or the like.
- the precure tread used for the retread tire conventionally known can be used for the tread 30, for example. This step is the same step as the step of bonding the precure tread to the outer peripheral surface of the base tire of the retreaded tire.
- a reinforcing cord 26 having a rigidity higher than that of the thermoplastic material is spirally wound in the circumferential direction on the outer peripheral surface of the crown portion 16 of the tire case 23 formed of the thermoplastic material. Therefore, puncture resistance, cut resistance, and circumferential rigidity of the tire 10 are improved. In addition, the creep of the tire case 23 formed of a thermoplastic material is prevented by improving the circumferential rigidity of the tire 10.
- the reinforcing cord 26 is embedded in the outer peripheral surface of the crown portion 16 of the tire case 23 made of a thermoplastic material in a cross-sectional view along the axial direction of the tire case 23 (the cross section shown in FIG. 1).
- the thermoplastic material since it is in close contact with the thermoplastic material, entry of air at the time of manufacture is suppressed, and movement of the reinforcing cord 26 due to input during travel is suppressed. Thereby, it is suppressed that peeling etc. arise in the reinforcement cord 26, the tire case 23, and the tread 30, and the durability of the tire 10 is improved.
- the embedding amount L of the reinforcement cord 26 is 1/5 or more of the diameter D as shown in FIG. 2, the air entry at the time of manufacture is suppressed effectively, the input at the time of driving, etc. This further suppresses the movement of the reinforcing cord 26. Furthermore, since the reinforcing cord 26 is wound spirally around the crown portion 16 of the tire case 23, the rigidity against the air pressure from the inner side in the tire radial direction is improved.
- the tread 30 that is in contact with the road surface is made of a rubber material that is more wear resistant than the thermoplastic material, the wear resistance of the tire 10 is improved. Further, since an annular bead core 18 made of a metal material is embedded in the bead portion 12, the tire case 23, that is, the tire 10 is strong against the rim 20 in the same manner as a conventional rubber pneumatic tire. Retained.
- a seal layer 24 made of a material that is softer than the thermoplastic material is provided in a portion of the bead portion 12 that comes into contact with the rim 20.
- the material constituting the seal layer 24 is softer than the thermoplastic material constituting the tire case 23, that is, has rebound resilience, so that the airtightness between the tire 10 and the rim 20 is improved, and the seal Improves. Thereby, compared with the case where it seals with the rim
- the tire 10 of this embodiment since it bears rigidity with the tire case 23 formed of a resin material without using a carcass ply widely used in conventional rubber tires, it has a conventional carcass ply. Compared with rubber tires, weight reduction can be achieved. Further, in the structure of the tire 10 of the present embodiment, since the carcass ply is not used unlike the conventional rubber tire, the number of processing steps at the time of manufacturing the tire can be reduced.
- the reinforcing cord 26 is heated, and the thermoplastic material in a portion where the heated reinforcing cord 26 contacts is melted or softened.
- the present invention is not limited to this configuration, and the reinforcing cord 26 is As shown in FIG. 7, a hot air generating device 78 having a fan 82, a heater 80, and a discharge port 84 is used without heating, and the reinforcing cord 26 is embedded in the hot air generated by the hot air generating device 78.
- the reinforcing cord 26 may be embedded and adhered after the thermoplastic material is blown to melt or soften the thermoplastic material.
- the cord heating device 59 and the hot air generating device 78 may be used together. When both are used together, the reinforcing cord 26 is securely embedded in the thermoplastic material as compared with the case where only the former or the latter is used. , Can be in close contact.
- the heat source of the cord heating device 59 is the heater 70 and the fan 72.
- the present invention is not limited to this configuration, and the reinforcing cord 26 is directly heated by radiant heat (for example, infrared rays). It is good also as a structure.
- the heat source of the hot air generating device 78 is the heater 80 and the fan 82, the present invention is not limited to this configuration. For example, infrared rays are converged on a portion where the reinforcing cord 26 is embedded, and the embedded portion is melted or melted. It may be softened.
- the portion in which the thermoplastic material in which the reinforcing cord 26 is embedded is melted or softened is forcibly cooled by the metal cooling roller 64, but the present invention is not limited to this configuration. Further, a configuration may be adopted in which cold air is directly blown onto a portion where the thermoplastic material is melted or softened to forcibly cool and solidify the melted or softened portion of the thermoplastic material.
- the reinforcement cord 26 is heated.
- the outer periphery of the reinforcement cord 26 may be covered with the same thermoplastic material as that of the tire case 23.
- the thermoplastic material covered with the reinforcing cord 26 is also heated, so that the air can be effectively prevented from entering when the cord is embedded in the crown portion 16.
- the tire case 23 is formed by welding a plurality of case division bodies 23 ⁇ / b> A, and the reinforcement cord 26 is wound around the crown portion 16 of the tire case 23 to form the reinforcement cord layer 28.
- the present invention is not limited to this configuration.
- the reinforcing cord 26 is held around the inner periphery of the mold and is held in a molten or softened resin material (for example, a thermosetting material).
- the tire case 23 may be integrally formed by injecting (such as a thermoplastic resin) or a thermoplastic material. An example of this configuration will be described below.
- the mold is configured to be divided into a plurality of pieces, and a groove is formed in a spiral shape on the inner peripheral surface corresponding to the crown portion 16 (outer peripheral portion) of the tire case 23.
- the reinforcing cord 26 is fitted in this groove. Holding the above-mentioned reinforcing cord in the mold groove (inserting), injecting a molten or soft resin material into the mold, and cooling and solidifying the injected resin material (solidifying by natural cooling or forced cooling)
- the tire case 23 made of a resin material is integrally formed.
- the reinforcing cord 26 is embedded in a cross-sectional view (cross section shown in FIG.
- the tire 10 of the above-described embodiment is a so-called tubeless tire in which an air chamber is formed between the tire 10 and the rim 20 by attaching the bead portion 12 to the rim 20, but the present invention is limited to this configuration. Instead, as shown in FIG. 8, it may be a complete tube shape.
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Abstract
Description
しかしながら、使用後のゴムはリサイクルの用途に制限があり、焼却する、破砕して道路の舗装材料として用いるなどして処分することが行われてきた。
例えば、特許文献1には、熱可塑性の高分子材料を用いて成形された空気入りタイヤが開示されている。
さらに、タイヤ骨格体の外周部に補強コード部材が巻回されていることから、径方向内側からの空気圧に対する剛性が向上する。
以下、図面にしたがって本発明のタイヤの第1実施形態に係るタイヤについて説明する。図1Aに示すように、本実施形態のタイヤ10は、従来一般のゴム製の空気入りタイヤと略同様の断面形状を呈している。
なお、樹脂材料としては、走行時に必要とされる弾性と製造時の成形性等を考慮すると熱可塑性エラストマーを用いることが好ましい。
次に、本実施形態のタイヤ10の製造装置について説明する。
図3には、タイヤ10を形成する際に用いる成形機32のタイヤ支持部34が斜視図にて示されている。
なお、本実施形態では、コード供給装置56は、押圧ローラ60及び冷却ローラ64の2つのローラを有する構成としているが、本発明はこの構成に限定されず、何れか一方のローラのみ(即ち、ローラ1個)を有している構成でもよい。
また、コード供給装置56はタイヤケース23の回転軸方向に移動可能となっている。
(タイヤケース成形工程)
(1)図6に示すように、先ず、径を縮小したタイヤ支持部34の外周側に、互いに向かい合わせに突き当てた2つのケース分割体23Aを配置すると共に、2つのケース分割体23Aの内部に、薄い金属板(例えば、厚さ0.5mmの鋼板)からなる筒状のタイヤ内面支持リング68を配置する。タイヤ内面支持リング68の外径は、ケース分割体23Aの外周部分の内径と略同一寸法に設定されており、タイヤ内面支持リング68の外周面が、ケース分割体23Aの外周部分の内周面に密着するようになっている。これにより、タイヤ支持片42間の隙間によりタイヤ支持部34外周に生じる凹凸に起因する接合部分(溶接用熱可塑性材料45)の凸凹(前記凹凸の逆形状)の発生を抑制することができる。また、タイヤ支持片42間の隙間によって配置部材(タイヤケース23、トレッド30、その他のタイヤ構成部材(例えば、ベルト補強層など))に凹凸が発生するのを抑制することができる。つまり、配置部材を配置する際に作用させる力(テンションや押圧力など)で配置部材のタイヤ支持片42間の隙間に対応した部位に凹凸が発生するのを抑制することができる。
(3)次に、図5に示すように、押出機44を退避させて、コード供給装置56をタイヤ支持部34の近傍に配置する。そして、ヒーター70の温度を上昇させ、ヒーター70で加熱された周囲の空気をファン72の回転によって生じる風で加熱ボックス74へ送る。次に、リール58から巻き出した補強コード26を、熱風で内部空間が加熱された加熱ボックス74内へ送り加熱(例えば、補強コード26の温度を100~200°C程度に加熱)する。加熱された補強コード26は、排出口76を通り、矢印R方向に回転するタイヤケース23のクラウン部16の外周面に一定のテンションをもって螺旋状に巻きつけられる。ここで、加熱された補強コード26がクラウン部16の外周面に接触すると、接触部分の熱可塑性材料が溶融又は軟化し、加熱された補強コード26の少なくとも一部がクラウン部16の外周面に埋設される。このとき、溶融又は軟化した熱可塑性材料に加熱された補強コード26が埋設されるため、熱可塑性材料と補強コード26とが隙間がない状態、つまり密着した状態となる。これにより、補強コード26を埋設した部分へのエア入りが抑制される。なお、補強コード26をタイヤケース23の熱可塑性材料の融点よりも高温に加熱することで、補強コード26が接触した部分の熱可塑性材料の溶融又は軟化が促進される。このようにすることで、クラウン部16の外周面に補強コード26を埋設しやすくなると共に、効果的にエア入りを抑制することができる。
本実施形態のタイヤ10では、熱可塑性材料で形成されたタイヤケース23のクラウン部16の外周面に熱可塑性材料よりも剛性が高い補強コード26が周方向へ螺旋状に巻回されていることから耐パンク性、耐カット性、及びタイヤ10の周方向剛性が向上する。なお、タイヤ10の周方向剛性が向上することで、熱可塑性材料で形成されたタイヤケース23のクリープが防止される。
さらに、タイヤケース23のクラウン部16に補強コード26が螺旋状に巻回されていることから、タイヤ径方向内側からの空気圧に対する剛性が向上する。
さらに、ビード部12には、金属材料からなる環状のビードコア18が埋設されていることから、従来のゴム製の空気入りタイヤと同様に、リム20に対してタイヤケース23、すなわちタイヤ10が強固に保持される。
上述の実施形態では、補強コード26を加熱し、加熱した補強コード26が接触する部分の熱可塑性材料を溶融又は軟化させる構成としたが、本発明はこの構成に限定されず、補強コード26を加熱せずに、図7に示すように、ファン82、ヒーター80、及び排出口84を有する熱風生成装置78を用い、この熱風生成装置78で発生させた熱風を補強コード26が埋設される部分に吹きかけて熱可塑性材料を溶融又は軟化させてから補強コード26を埋設、密着させる構成としてもよい。なお、コード加熱装置59及び熱風生成装置78は共に用いてもよく、両者を共に用いた場合には、前者又は後者のみを用いる場合と比べて、確実に補強コード26を熱可塑性材料内に埋設、密着させることができる。
上記金型は複数に分割されるように構成され、タイヤケース23のクラウン部16(外周部)に対応する内周面に溝が螺旋状に形成されている。この溝には、補強コード26を嵌めるようになっている。この金型の溝に上述の補強コードを保持させ(嵌め込み)、金型内に溶融又は軟化状態の樹脂材料を注入し、注入した樹脂材料を冷却固化(自然冷却又は強制冷却により固化)させることで、樹脂材料により構成されたタイヤケース23が一体形成される。このようにして形成されたタイヤケース23のクラウン部16には、タイヤケース23の軸方向に沿った断面視(図1に示される断面)で補強コード26の少なくとも一部が埋設される。補強コード26のクラウン部16に埋設された部分は、タイヤケース23を構成する樹脂材料に密着することから、製造時のエア入りが抑制され、走行時の入力などによって補強コード26が動くのが抑制される。これにより、補強コード26、タイヤケース23、及びトレッド30に剥離などが生じるのが抑制され、タイヤ10の耐久性が向上する。なお、金型の内周に対して補強コード26を保持させる手段としては、補強コード26を金型の内周に貼り付ける、などの他の手段を選択してもよい。
以上、実施形態を挙げて本発明の実施の形態を説明したが、これらの実施形態は一例であり、要旨を逸脱しない範囲内で種々変更して実施できる。また、本発明の権利範囲がこれらの実施形態に限定されないことは言うまでもない。
12 ビード部
16 クラウン部(外周部)
18 ビードコア
20 リム
21 ビードシート
22 リムフランジ
23 タイヤケース(タイヤ骨格体)
24 シール層(シール部)
26 補強コード(補強コード部材)
28 補強コード層
30 トレッド
D 補強コードの直径(補強コード部材の直径)
L 補強コードの埋設量(補強コード部材の埋設量)
Claims (13)
- 樹脂材料で形成された環状のタイヤ骨格体を備えリムに装着されるタイヤであって、
前記タイヤ骨格体の外周部に巻回されて補強コード層を形成すると共に、前記タイヤ骨格体の軸方向に沿った断面視で前記外周部に少なくとも一部が埋設された補強コード部材を有するタイヤ。 - 前記補強コード層の径方向外側に前記樹脂材料よりも耐摩耗性のある材料からなるトレッドが設けられた請求項1に記載のタイヤ。
- 前記補強コード部材は前記タイヤ骨格体の軸方向に沿った断面視で直径の1/5以上が前記タイヤ骨格体の外周部に埋設されている請求項1又は請求項2に記載のタイヤ。
- 前記タイヤ骨格体は、径方向内側に前記リムのビードシート及びリムフランジに接触するビード部を有し、前記ビード部に金属材料からなる環状のビードコアが埋設されている請求項1~3の何れか1項に記載のタイヤ。
- 前記ビード部の前記リムと接触する部分に前記樹脂材料よりも軟質である材料からなるシール部が設けられている請求項4に記載のタイヤ。
- 前記樹脂材料は熱可塑性である請求項1~請求項5のいずれか1項に記載のタイヤ。
- 熱可塑性材料で形成された環状のタイヤ骨格体の外周部を溶融又は軟化させながら補強コード部材の少なくとも一部を埋設して前記外周部に前記補強コード部材を巻回するコード部材巻回工程、を有するタイヤの製造方法。
- 前記コード部材巻回工程では、前記タイヤ骨格体の軸方向に沿った断面視で、前記タイヤ骨格体の外周部に前記補強コード部材を直径の1/5以上埋設する請求項7に記載のタイヤの製造方法。
- 前記コード部材巻回工程では、前記補強コード部材を加熱する請求項7又は請求項8に記載のタイヤの製造方法。
- 前記コード部材巻回工程では、前記タイヤ骨格体の外周部の前記補強コード部材が埋設される部分を加熱する請求項7~9の何れか1項に記載のタイヤの製造方法。
- 前記コード部材巻回工程では、前記補強コード部材のテンションが予め決定された値となるように調整しながら前記タイヤ骨格体の外周部に前記補強コード部材を螺旋状に巻回する請求項7~10の何れか1項に記載のタイヤの製造方法。
- 前記コード部材巻回工程では、前記補強コード部材を前記タイヤ骨格体の外周部に押圧しながら前記補強コード部材を螺旋状に巻回する請求項7~11の何れか1項に記載のタイヤの製造方法。
- 前記コード部材巻回工程では、前記補強コード部材が埋設された後で、前記タイヤ骨格体の外周部の溶融又は軟化した部分を強制的に冷却する請求項7~12の何れか1項に記載のタイヤの製造方法。
Priority Applications (4)
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US13/201,734 US9440407B2 (en) | 2009-02-17 | 2010-02-17 | Tire and tire manufacturing method |
JP2011500631A JP5689789B2 (ja) | 2009-02-17 | 2010-02-17 | タイヤの製造方法 |
EP10743780.8A EP2399759B1 (en) | 2009-02-17 | 2010-02-17 | Tire and tire manufacturing method |
CN2010800080400A CN102317088B (zh) | 2009-02-17 | 2010-02-17 | 轮胎及轮胎的制造方法 |
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PCT/JP2010/052360 WO2010095654A1 (ja) | 2009-02-17 | 2010-02-17 | タイヤ、及びタイヤの製造方法 |
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US (1) | US9440407B2 (ja) |
EP (1) | EP2399759B1 (ja) |
JP (2) | JP5689789B2 (ja) |
KR (1) | KR20110113208A (ja) |
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Cited By (19)
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JP2018111400A (ja) * | 2017-01-11 | 2018-07-19 | 株式会社ブリヂストン | タイヤ |
JP6924725B2 (ja) * | 2018-06-19 | 2021-08-25 | 株式会社ブリヂストン | タイヤ |
CN114919214B (zh) * | 2022-04-15 | 2022-12-13 | 天津赛象科技股份有限公司 | 工程胎成型机的辊压装置、控制方法及两鼓工程胎成型机 |
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Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2011021702A1 (ja) * | 2009-08-20 | 2011-02-24 | 株式会社ブリヂストン | タイヤ、及びタイヤの製造方法 |
US9415636B2 (en) | 2010-08-25 | 2016-08-16 | Bridgestone Corporation | Tire, and tire manufacturing method |
US20160280008A1 (en) * | 2010-08-25 | 2016-09-29 | Bridgestone Corporation | Tire and manufacturing method for same |
US20160303905A1 (en) * | 2010-08-25 | 2016-10-20 | Bridgestone Corporation | Tire, and tire manufacturing method |
JP2012106668A (ja) * | 2010-11-18 | 2012-06-07 | Bridgestone Corp | タイヤ |
US10023009B2 (en) * | 2011-02-15 | 2018-07-17 | Bridgestone Corporation | Tire |
US20130319592A1 (en) * | 2011-02-15 | 2013-12-05 | Bridgestone Corporation | Tire |
WO2012118091A1 (ja) | 2011-02-28 | 2012-09-07 | 株式会社ブリヂストン | タイヤ |
US20140174638A1 (en) * | 2011-08-31 | 2014-06-26 | Ssm Scharer Schweiter Mettler Ag | Thread displacement device |
JP2013166428A (ja) * | 2012-02-14 | 2013-08-29 | Bridgestone Corp | タイヤ |
US10596853B2 (en) | 2012-02-14 | 2020-03-24 | Bridgestone Corporation | Tire |
JP2013166427A (ja) * | 2012-02-14 | 2013-08-29 | Bridgestone Corp | タイヤ |
JP2013166429A (ja) * | 2012-02-14 | 2013-08-29 | Bridgestone Corp | タイヤ |
CN104271363A (zh) * | 2012-02-29 | 2015-01-07 | 株式会社普利司通 | 轮胎 |
JPWO2013129631A1 (ja) * | 2012-02-29 | 2015-07-30 | 株式会社ブリヂストン | タイヤ |
WO2013129631A1 (ja) * | 2012-02-29 | 2013-09-06 | 株式会社ブリヂストン | タイヤ |
WO2013129632A1 (ja) * | 2012-02-29 | 2013-09-06 | 株式会社ブリヂストン | タイヤ |
CN105073444A (zh) * | 2013-03-29 | 2015-11-18 | 株式会社普利司通 | 轮胎 |
CN105073444B (zh) * | 2013-03-29 | 2016-10-19 | 株式会社普利司通 | 轮胎 |
JP2014205462A (ja) * | 2013-04-15 | 2014-10-30 | 株式会社ブリヂストン | タイヤ及びタイヤの製造方法 |
WO2014171462A1 (ja) | 2013-04-15 | 2014-10-23 | 株式会社ブリヂストン | タイヤ及びタイヤの製造方法 |
US20160368323A1 (en) * | 2013-07-11 | 2016-12-22 | Bridgestone Corporation | Tire |
CN106573494A (zh) * | 2014-07-30 | 2017-04-19 | 株式会社普利司通 | 轮胎 |
JP2015155303A (ja) * | 2015-05-18 | 2015-08-27 | 株式会社ブリヂストン | タイヤ |
CN110023099A (zh) * | 2016-12-02 | 2019-07-16 | 株式会社普利司通 | 轮胎 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2010095654A1 (ja) | 2012-08-30 |
US9440407B2 (en) | 2016-09-13 |
CN102317088B (zh) | 2013-11-20 |
EP2399759B1 (en) | 2014-05-21 |
JP5960776B2 (ja) | 2016-08-02 |
EP2399759A1 (en) | 2011-12-28 |
KR20110113208A (ko) | 2011-10-14 |
JP2015034009A (ja) | 2015-02-19 |
CN102317088A (zh) | 2012-01-11 |
EP2399759A4 (en) | 2012-08-08 |
US20110297289A1 (en) | 2011-12-08 |
JP5689789B2 (ja) | 2015-03-25 |
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