tire

Abstract

To provide a tire that has a tire skeleton member made of resin and an RFID tag, in which positional deviation of the RFID tag can be suppressed.SOLUTION: The tire comprises: an annular tire skeleton member made of resin comprising a bead part, a side part leading to outside in a tire radial direction of the bead part, and a crown part leading to inside in a tire width direction of the side part; and an RFID tag arranged at the side part so as to be integrated with the side part, with their longitudinal direction aligned with the tire radial direction.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present disclosure relates to a tire.

Background Art

[0002] Patent Document 1 discloses a tire having an annular resin tire skeleton member and an RFID tag. The tire skeleton member includes a bead portion, a side portion continuous with the outer side in the tire radial direction of the bead portion, and a crown portion continuous with the inner side in the tire width direction of the side portion. The RFID tag is attached to the outer surface of the side portion.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the tire of Patent Document 1, the longitudinal direction of the RFID tag attached to the outer surface of the side portion of the tire skeleton member is arranged along the tire circumferential direction.

[0005] Therefore, when molding a resin tire skeleton member by injection molding and setting the RFID tag in a mold to integrate it with the side portion, if the gate is arranged on the bead portion side or the crown portion side, the position of the RFID tag may shift due to the resin flow generated in the tire radial direction from the gate.

[0006] An object of the present disclosure is to suppress the displacement of the RFID tag in a tire having a resin tire skeleton member and an RFID tag.

Means for Solving the Problems

[0007] The tire according to the first aspect of the present disclosure includes an annular and resinous tire skeletal member including a bead portion, a side portion continuous with the outside in the tire radial direction of the bead portion, and a crown portion continuous with the inside in the tire width direction of the side portion, and an RFID tag whose longitudinal direction is arranged along the tire radial direction in the side portion so as to be integrated with the side portion.

[0008] In the tire according to the first aspect of the present disclosure, the RFID tag is arranged in the side portion along the tire radial direction so as to be integrated with the side portion.

[0009] Therefore, when the tire skeletal member is molded by injection molding and the RFID tag is set in the mold and integrated with the side portion, even if the resin flow occurs in the tire radial direction, the RFID tag is less affected by the resin flow compared to a tire in which the longitudinal direction of the RFID tag is arranged along the tire circumferential direction. For this reason, displacement of the RFID tag can be suppressed.

[0010] The tire according to the second aspect of the present disclosure further includes a holding portion that holds the RFID tag in a state where the longitudinal direction of the RFID tag is arranged along the tire radial direction.

[0011] In the tire according to the second aspect of the present disclosure, the holding portion holds the RFID tag in a state where the longitudinal direction of the RFID tag is arranged along the tire radial direction. For this reason, displacement of the RFID tag can be suppressed compared to a tire having no holding portion.

[0012] In the tire according to the third aspect of the present disclosure, the holding portion is formed of a resin material of the same type as the resin material forming the tire skeletal member.

[0013] In the tire according to the third aspect of the present disclosure, since the resin material forming the holding portion is of the same type as the resin material forming the tire skeletal member, the holding portion can be firmly integrated with the side portion compared to a tire in which the resin materials are of different types.

[0014] The tire according to the fourth aspect of the present disclosure further has gate marks indicating gate positions arranged in the tire circumferential direction on the bead portion side or the crown portion side of the tire skeleton member before injection molding, and the RFID tag is arranged between a plurality of the gate positions in the tire circumferential direction.

[0015] In the tire according to the fourth aspect of the present disclosure, the RFID tag is arranged between a plurality of gate positions in the tire circumferential direction.

[0016] Therefore, compared with a tire in which the RFID tag is arranged at the same position as the gate position in the tire circumferential direction, the RFID tag is less affected by the flow of the resin flowing from the gate during injection molding. Therefore, displacement of the RFID tag can be suppressed.

[0017] The tire according to the fifth aspect of the present disclosure has the RFID tag including a resin case, an RFID chip and an antenna housed in the case, and the side portion is molded so as to be integrated with the case.

[0018] In the tire according to the fifth aspect of the present disclosure, since the side portion of the tire skeleton member is molded so as to be integrated with the case housing the RFID chip and the antenna, the RFID tag can be easily incorporated into the tire skeleton member.

[0019] The tire according to the sixth aspect of the present disclosure has the case formed of a resin material of the same type as the resin material forming the tire skeleton member.

[0020] In the tire according to the sixth aspect of the present disclosure, since the resin material forming the case of the RFID tag is of the same type as the resin material forming the tire skeleton member, the case can be more firmly integrated with the side portion than in a tire in which the resin materials are different types.

Advantages of the Invention

[0021] According to the present disclosure, in a tire having a resin tire skeleton member and an RFID tag, displacement of the RFID tag can be suppressed.

Brief Description of the Drawings

[0022]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Modes for Carrying Out the Invention

[0023] Hereinafter, modes for carrying out the present disclosure will be described with reference to the drawings. Components denoted by the same reference numerals in the respective drawings mean the same or similar components. In the embodiments described below, redundant descriptions and reference numerals may be omitted. Further, the drawings used in the following description are all schematic, and the dimensional relationships of the respective elements shown in the drawings, the ratios of the respective elements, etc. do not necessarily match the actual ones. Also, the dimensional relationships of the respective elements, the ratios of the respective elements, etc. do not necessarily match between the plurality of drawings.

[0024] In the drawings, arrow TC indicates the tire circumferential direction, arrow TW indicates the tire width direction, and arrow TR indicates the tire radial direction. Further, hereinafter, the side closer to the tire rotation axis along the tire radial direction is referred to as the "inner side in the tire radial direction", and the side farther from the tire rotation axis along the tire radial direction is referred to as the "outer side in the tire radial direction". On the other hand, the side closer to the tire equatorial plane CL along the tire width direction is referred to as the "inner side in the tire width direction", and the side farther from the tire equatorial plane CL along the tire width direction is referred to as the "outer side in the tire width direction". Note that the method for measuring the dimensions of each part conforms to the method described in the 2021 edition YEAR BOOK issued by JATMA (Japan Automobile Tire Manufacturers Association).

[0025] As shown in FIG. 1, the tire 10 of the present embodiment is a pneumatic tire filled with air inside and has a cross-sectional shape substantially the same as that of a conventional general rubber pneumatic tire (hereinafter, appropriately referred to as a "rubber tire").

[0026] (Tire skeleton member 17) The tire 10 of the present embodiment has an annular and resin-made tire skeleton member 17 that forms the skeleton portion of the tire 10. The tire skeleton member 17 of the present embodiment is formed by joining a pair of tire halves 17A made of a resin material at the joint member 17B at the tire equatorial plane CL.

[0027] The tire skeleton member 17 includes a pair of bead portions 12 arranged at intervals in the tire width direction, a side portion 14 continuous with the outer side in the tire radial direction of the bead portion 12, and a crown portion 16 continuous with the inner side in the tire width direction of the side portion 14 and connecting the outer ends in the tire radial direction of the respective side portions 14. Note that the circumferential direction, width direction, and radial direction of the tire skeleton member 17 correspond to the tire circumferential direction, tire axial direction, and tire radial direction, respectively.

[0028] The tire skeletal member 17 is formed mainly of a resin material. This resin material does not contain vulcanized rubber. Examples of the resin material include thermoplastic resins (including thermoplastic elastomers), thermosetting resins, and other general-purpose resins, as well as engineering plastics (including super engineering plastics).

[0029] The thermoplastic resin (including thermoplastic elastomer) refers to a polymer compound that softens, flows as the temperature rises, and becomes relatively hard and strong when cooled. In this specification, among these, a polymer compound that softens, flows as the temperature rises, becomes relatively hard and strong when cooled, and has rubber-like elasticity is defined as a thermoplastic elastomer, and a polymer compound that softens, flows as the temperature rises, becomes relatively hard and strong when cooled, and does not have rubber-like elasticity is defined as a non-elastomeric thermoplastic resin for distinction.

[0030] Examples of the thermoplastic resin (including thermoplastic elastomer) include polyolefin-based thermoplastic elastomers (TPO), polystyrene-based thermoplastic elastomers (TPS), polyamide-based thermoplastic elastomers (TPA), polyurethane-based thermoplastic elastomers (TPU), polyester-based thermoplastic elastomers (TPC), and dynamically crosslinked thermoplastic elastomers (TPV), as well as polyolefin-based thermoplastic resins, polystyrene-based thermoplastic resins, polyamide-based thermoplastic resins, and polyester-based thermoplastic resins.

[0031] In addition, as the above thermoplastic material, for example, those with a deflection temperature under load (at a load of 0.45 MPa) specified in ISO 75-2 or ASTM D648 of 78 °C or higher, a tensile yield strength specified in JIS K7113 of 10 MPa or higher, a tensile fracture elongation also specified in JIS K7113 of 50% or higher, and a Vicat softening temperature (Method A) specified in JIS K7206 of 130 °C can be used.

[0032] A thermosetting resin refers to a polymer compound that forms a three-dimensional network structure and cures as the temperature rises. Examples of thermosetting resins include phenolic resins, epoxy resins, melamine resins, urea resins, and the like.

[0033] In addition to the aforementioned thermoplastic resins (including thermoplastic elastomers) and thermosetting resins, general-purpose resins such as (meth)acrylic resins, EVA resins, vinyl chloride resins, fluorine-based resins, and silicone-based resins may also be used as the resin material.

[0034] Further, the tire carcass member 17 may be formed of a single resin material or may be formed of resin materials having different characteristics for each part (such as the bead part 12, the side part 14, the crown part 16, etc.) of the tire carcass member 17.

[0035] The bead part 12 is a part that fits onto the standard rim via the coating rubber 24, and an annular bead core 18 extending along the tire circumferential direction is embedded therein. The bead core 18 is composed of a bead cord (not shown) such as a metal cord (for example, a steel cord), an organic fiber cord, an organic fiber cord coated with resin, or a hard resin. Regarding the bead core 18, it may be omitted if the rigidity of the bead part 12 can be sufficiently ensured.

[0036] As shown in FIG. 1, the side part 14 is a part that constitutes the side part of the tire 10, and is gently curved so as to protrude outward in the tire width direction from the bead part 12 toward the crown part 16.

[0037] The crown part 16 is a part that supports a tread 32, which will be described later, provided on the outer side in the tire radial direction, and the outer peripheral surface is substantially flat along the tire width direction.

[0038] Here, the tire skeletal member 17 (specifically, the tire half 17A) is formed by injection molding. Therefore, as shown in FIG. 4, a gate mark 70 indicating the position of the gate (hereinafter referred to as the gate position) into which the molten resin is injected during injection molding is formed on the tire skeletal member 17. In FIG. 4, the tire skeletal member 17 is shown in a simplified manner, and the gate mark 70 is schematically shown. Also, in FIG. 4, the resin flow is indicated by a dashed arrow.

[0039] In the formed tire skeletal member 17, at the gate position, for example, a gate mark 70 such as being cloudy compared to the portions other than the gate position and having a circular shape is formed, so that the gate position can be discriminated.

[0040] Since it can be known from the gate mark 70 that the tire skeletal member 17 is formed by injection molding, the gate mark 70 can also be said to be an injection molding mark indicating that the tire skeletal member 17 is formed by injection molding.

[0041] The gate is arranged on the outer side in the tire radial direction (i.e., on the crown portion 16 side) of the tire skeletal member 17 or on the inner side in the tire radial direction (i.e., on the bead portion 12 side) of the tire skeletal member 17 during injection molding. Therefore, the gate mark 70 is formed on the outer side in the radial direction of the tire skeletal member 17 or on the inner side in the radial direction of the tire skeletal member 17.

[0042] Also, a plurality of gates are arranged along the tire circumferential direction during injection molding. Therefore, a plurality of gate marks 70 are formed along the tire circumferential direction.

[0043] Furthermore, specifically, during injection molding, as an example, a plurality of gates are arranged along the tire circumferential direction in the range of 6 or more and 12 or less. More specifically, during injection molding, as an example, a plurality of gates are arranged along the tire circumferential direction at equal angular intervals of 30 degrees or more and 60 degrees or less.

[0044] Therefore, specifically, for example, a plurality of gate marks 70 are formed along the tire circumferential direction within a range of 6 or more and 12 or less. More specifically, for example, a plurality of gate marks 70 are formed along the tire circumferential direction at equal angular intervals of 30° or more and 60° or less. In FIG. 4, an example is shown in which 8 gate marks 70 are formed along the tire circumferential direction at equal angular intervals of 45°.

[0045] In the present embodiment, as described above, since the gate is arranged on the radially outer side of the tire skeletal member 17 or on the radially inner side of the tire skeletal member 17 during injection molding, in injection molding, a resin flow occurs in the tire radial direction.

[0046] (Belt layer 28) A belt layer 28 is provided on the radially outer side of the crown portion 16 of the tire. This belt layer 28 is configured by spirally winding a reinforcing cord 26 coated with a resin 27 in the tire circumferential direction.

[0047] (Reinforcing layer 30) A reinforcing layer 30 is arranged on the outer surface of the tire skeletal member 17. The reinforcing layer 30 extends from the radially inner side of the bead core 18 to the radially outer side along the outer surface of the tire skeletal member 17, and further extends to the radially inner side of the bead core 18 on the opposite side beyond the tire equatorial plane CL.

[0048] The reinforcing layer 30 includes a plurality of reinforcing cords (not shown) coated with rubber (not shown). The reinforcing cords of the reinforcing layer 30 are monofilaments (single wires) of organic fibers or multifilaments (twisted wires) twisted from organic fibers, and each extends in the radial direction and is arranged in parallel in the tire circumferential direction. Note that the reinforcing cords of the reinforcing layer 30 may be inclined at an angle within 10° with respect to the tire radial direction in a tire side view.

[0049] The reinforcing layer 30 of the present embodiment is formed by attaching ply 30L and ply 30R, which will be described later, in which a plurality of reinforcing cords arranged in parallel with each other are coated with rubber (unvulcanized), to the outer peripheral surface of the formed tire skeletal member 17. In the present embodiment, the outer surface 14A of the side portion 14 and an RFID tag 40, which will be described later, are covered by the reinforcing layer 30.

[0050] As an example of the reinforcing cord of the reinforcing layer 30, a polyester cord, a nylon cord, a PET cord, an aromatic polyamide cord, or the like can be used. Note that, as the material of the reinforcing cord of the reinforcing layer 30, a metal such as steel may be used. Note that the reinforcing layer 30 may be formed by coating the reinforcing cord with resin instead of rubber.

[0051] (Tread 32) A rubber tread 32 is disposed on the outer side in the tire radial direction of the reinforcing layer 30. This tread 32 covers the outer portion in the tire radial direction of the reinforcing layer 30. The rubber material constituting the tread 32 is the same as that of the tread rubber of a conventional pneumatic tire or the tread rubber for a retread tire. Further, a tread pattern (not shown) is formed on the ground contact surface with the road surface of the tread 32.

[0052] (Covering rubber 24) As shown in FIGS. 1 and 2, covering rubber 24 is provided on the outer surface of the reinforcing layer 30 attached to the tire skeletal member 17, extending from the outer surface 14A on the outer side of the tire of the side portion 14 to the inner surface 12B on the inner side of the tire of the bead portion 12. Specifically, the covering rubber 24 is folded back from the outer surface 14A of the side portion 14 via the outer surface 12A of the bead portion 12 toward the inner surface 12B side of the bead portion 12.

[0053] The outer end portion of the coated rubber 24 on the outer side in the tire radial direction is joined (vulcanization-bonded) to the tread 32 and the tire skeleton member 17 while being sandwiched between the reinforcing layer 30 attached to the tire skeleton member 17 and the outer end portion of the tread 32 on the outer side in the tire width direction. In the present embodiment, the entire outer surface of the reinforcing layer 30 attached to the tire skeleton member 17 is covered by the tread 32 and the coated rubber 24.

[0054] As the rubber material constituting the coated rubber 24, a rubber material having higher weather resistance and sealing performance with the standard rim than the tire skeleton member 17 is used. The rubber material constituting the coated rubber 24 is the same as the rubber materials used for the sidewalls and bead portions of conventional general rubber pneumatic tires.

[0055] (RFID tag 40) As shown in FIGS. 1, 2, and 3, the tire 10 has an RFID tag 40. This RFID tag 40 is configured to be capable of wireless communication with a reader (not shown).

[0056] Specifically, as shown in FIGS. 5(A) and 5(B), the RFID tag 40 has a resin case 42, an RFID chip 44 and an antenna 46 housed in the case 42. In the present embodiment, a pair of antennas 46 extend from the RFID chip 44 in opposite directions.

[0057] The case 42 is plate-shaped and is formed in a substantially rectangular shape having the extending direction of the antenna 46 (arrow W direction) as the longitudinal direction in plan view. In the present embodiment, the case 42 is curved in an arc shape on the short side. Further, the case 42 has flexibility, and the RFID tag 40 (specifically, the case 42) can be deformed according to the deformation of the tire 10 (see FIG. 5(B)).

[0058] In the present embodiment, the case 42 is formed of the same resin material as the resin material forming the tire skeleton member 17. Note that the shape of the case 42 is not limited to the aforementioned substantially rectangular shape. Also, the case 42 may be formed, for example, in a film shape.

[0059] The side portion 14 of the tire skeletal member 17 is formed so that the RFID tag 40 is integrated with the side portion 14. Specifically, the RFID tag 40 is integrated with the side portion 14 of the tire half 17A by insert molding, in which the tire half 17A is injection molded while the RFID tag 40 is placed in a mold for molding the tire half 17A (hereinafter referred to as insert molding).

[0060] Note that by observing the interface between the RFID tag 40 (specifically, the case 42) and the side portion 14 with an observation device (e.g., an electron microscope), it is possible to determine whether the RFID tag 40 is insert molded or welded to the side portion 14 after the tire half 17A is molded. In other words, the tire skeletal member 17 has a molding mark indicating that the RFID tag 40 is insert molded.

[0061] The longitudinal direction of the RFID tag 40 (specifically, the longitudinal direction of the case 42) is arranged along the tire radial direction (arrow TR direction). Therefore, the RFID tag 40 is arranged such that the extending direction of the antenna 46 (arrow W direction) is along the tire radial direction.

[0062] In the present embodiment, as shown in FIG. 4, the RFID tag 40 is arranged between a plurality of gate marks 70 in the tire circumferential direction. Specifically, in the tire circumferential direction, at least a part of the RFID tag 40 overlaps with the tire radial direction with respect to the central position 70A (see FIG. 4) between one gate mark 70 and the gate mark 70 adjacent to the gate mark 70 in the tire circumferential direction.

[0063] In this embodiment, as shown in FIG. 3, the RFID tag 40 is provided, as an example, on the outer surface 14A of the side portion 14 of the tire skeletal member 17. The outer surface 14A is a surface facing the outer side in the tire width direction. Specifically, the RFID tag 40 is housed in a recess 17D formed in the outer surface 14A. Further, in this embodiment, as shown in FIG. 2, the RFID tag 40 is provided on one side portion 14. Furthermore, in this embodiment, the RFID tag 40 is disposed radially outside the tire maximum width portion 17C (i.e., the portion where the dimension in the tire width direction is the largest) of the tire skeletal member 17. In other words, the RFID tag 40 is disposed on the crown portion 16 side rather than the tire maximum width portion 17C along the side portion 14.

[0064] (Holding portion 60) As shown in FIG. 3, the tire 10 has a holding portion 60 that holds the RFID tag 40 in a state where the longitudinal direction of the RFID tag 40 is arranged along the tire radial direction. Specifically, the holding portion 60 has a function of holding the RFID tag 40 in a state where the longitudinal direction of the RFID tag 40 is arranged along the tire radial direction when the RFID tag 40 is disposed in the molding die for molding the tire half body 17A.

[0065] In this embodiment, the holding portion 60 positions the RFID tag 40 in a state where the longitudinal direction of the RFID tag 40 is arranged along the tire radial direction by holding a part or all of the RFID tag 40.

[0066] As the holding portion 60, it is possible to use a knitted fabric knitted with resin fibers. The holding portion 60 is formed of a resin material of the same type as the resin material forming the tire skeletal member 17 as an example.

[0067] In this embodiment, instead of or in addition to the holding portion 60, the RFID tag 40 may be held in a recess or the like of the molding die in the molding die for injection molding the tire half body 17A.

[0068] (Function) In the tire 10 of the present embodiment, the RFID tag 40 is disposed on the side portion 14 so as to be integrated with the side portion 14, and the longitudinal direction thereof is arranged along the tire radial direction.

[0069] Therefore, when the RFID tag 40 is set in the mold and integrated with the side portion 14 when the tire skeleton member 17 is molded by injection molding, even if the resin flow occurs in the tire radial direction, the longitudinal direction of the RFID tag 40 is along the tire circumferential direction. Compared with the arranged tire, it is less affected by the resin flow. Therefore, the displacement of the RFID tag 40 can be suppressed.

[0070] Further, in the tire 10, the holding portion 60 holds the RFID tag 40 in a state where the longitudinal direction of the RFID tag 40 is arranged along the tire radial direction. Therefore, compared with a tire having no holding portion 60, the displacement of the RFID tag 40 can be suppressed.

[0071] Further, in the tire 10, since the resin material forming the holding portion 60 is the same type as the resin material forming the tire skeleton member 17, the holding portion 60 can be more firmly integrated with the side portion 14 than in a tire in which the resin materials are different types.

[0072] Further, in the tire 10, the RFID tag 40 is arranged between a plurality of gate positions in the tire circumferential direction.

[0073] Therefore, compared with a tire in which the RFID tag 40 is arranged at the same position as the gate position in the tire circumferential direction, the RFID tag 40 is less affected by the resin flow (see the broken line arrow in FIG. 4) flowing from the gate during injection molding. Therefore, the displacement of the RFID tag 40 can be suppressed.

[0074] Further, in the tire 10, since the side portion 14 of the tire skeleton member 17 is molded so as to be integrated with the case 42 that houses the RFID chip 44 and the antenna 46, the RFID tag 40 can be easily incorporated into the tire skeleton member 17.

[0075] Further, in the tire 10, since the resin material forming the case 42 of the RFID tag 40 is of the same type as the resin material forming the tire skeletal member 17, the case 42 can be firmly integrated with the side portion 14 as compared with a tire in which the resin materials are of different types.

[0076] (Other embodiments) As described above, an example of the embodiment of the present disclosure has been described. However, the embodiments of the present disclosure are not limited to the above, and it goes without saying that various modifications can be made without departing from the gist thereof.

[0077] In the foregoing embodiment, the RFID tag 40 was provided on one side portion 14 of the tire skeletal member 17 as shown in FIG. 2, but the present disclosure is not limited thereto. The RFID tag of the present disclosure may be provided on each of the side portions 14 on both sides of the tire skeletal member 17. That is, the RFID tag of the present disclosure may be provided on at least one of the side portions 14 on both sides of the tire skeletal member 17.

[0078] Further, in the foregoing embodiment, the RFID tag 40 was housed in the recess 17D formed in the outer surface 14A of the side portion 14, but the present disclosure is not limited thereto. The RFID tag of the present disclosure may be configured, for example, to be disposed on the outer surface 14A where no recess is formed in the side portion 14. The RFID tag of the present disclosure may be disposed with respect to the inner surface of the side portion 14 of the tire skeletal member 17. Note that the inner surface is a surface facing the inner side in the tire width direction.

[0079] Further, in the foregoing embodiment, the RFID tag 40 was disposed radially outside the maximum tire width portion 17C of the tire skeletal member 17, but the present disclosure is not limited thereto. The RFID tag of the present disclosure may be disposed radially inside the maximum tire width portion 17C of the tire skeletal member 17.

[0080] In the above-described embodiment, the RFID tag 40 was disposed between a plurality of gate positions in the tire circumferential direction, but the present disclosure is not limited thereto. As the RFID tag of the present disclosure, it may be disposed at the same position as the gate position in the tire circumferential direction.

[0081] In the above-described embodiment, the resin material forming the holding portion 60 and the resin material forming the side portion 14 were the same type of resin material, but the present disclosure is not limited thereto. As the tire 10 of the present disclosure, the resin material forming the holding portion 60 and the resin material forming the side portion 14 may be different types of resin materials.

[0082] In the above-described embodiment, the resin material forming the case 42 and the resin material forming the side portion 14 were the same type of resin material, but the present disclosure is not limited thereto. As the tire 10 of the present disclosure, the resin material forming the case 42 and the resin material forming the side portion 14 may be different types of resin materials.

[0083] In the above-described embodiment, the reinforcing layer 30 includes a plurality of reinforcing cords (not shown) covered with rubber (not shown), but the present disclosure is not limited to this configuration. The reinforcing layer 30 may include a plurality of reinforcing cords (not shown) covered with a resin material (not shown).

Description of Reference Numerals

[0084] 10…Tire, 12…Bead portion, 14…Side portion, 16…Crown portion, 17…Tire skeleton member, 40…RFID tag, 42…Case, 44…RFID chip, 46…Antenna, 60…Holding portion, 70…Gate mark

Claims

1. An annular resin tire skeleton member including a bead portion, a side portion continuous with the outside in the tire radial direction of the bead portion, and a crown portion continuous with the inside in the tire width direction of the side portion; An RFID tag whose longitudinal direction is arranged along the tire radial direction on the side portion so as to be integrated with the side portion; A tire having the above.

2. A holding portion for holding the RFID tag in a state where the longitudinal direction of the RFID tag is arranged along the tire radial direction; The tire according to claim 1, further comprising the above.

3. The holding portion is formed of a resin material of the same type as the resin material forming the tire skeleton member; The tire according to claim 2.

4. Gate marks indicating a plurality of gate positions arranged along the tire circumferential direction on the bead portion side or the crown portion side of the injection-molded tire skeleton member; Further comprising the above; The RFID tag is arranged between a plurality of the gate positions in the tire circumferential direction. The tire according to claim 1.

5. The RFID tag has a resin case, an RFID chip and an antenna housed in the case; The side portion is molded so as to be integrated with the case. The tire according to claim 1.

6. The case is formed of a resin material of the same type as the resin material forming the tire skeleton member; The tire according to claim 5.

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