Tire

Abstract

To provide a tire having an RFID tag which suppresses damage of the RFID tag.SOLUTION: A tire has: an annular and resin-made tire skeleton member including a bead part, a side part continuous to outside in a tire radial direction of the bead part, and a crown part continuous to inside in a tire width direction of the side part; and an RFID tag attached to the outer surface of the side part.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a tire.

Background Art

[0002] A tire incorporating an RFID tag having an RFID chip and an antenna is known (see Patent Document 1).

[0003] In Patent Document 1, the RFID tag is disposed at a position separated from the carcass forming the skeleton portion of the tire toward the outside of the tire.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the tire disclosed in Patent Document 1, since the RFID tag is disposed at a position separated from the carcass toward the outside of the tire, a tensile force acts on the RFID tag located outside the carcass due to the deformation of the tire side portion during grounding. When an excessive tensile force acts on the RFID tag, the RFID tag may be damaged.

[0006] An object of the present invention is to suppress damage to an RFID tag in a tire having the RFID tag.

Means for Solving the Problems

[0007] A tire according to a first aspect of the present invention includes an annular and resin-made 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, and an RFID tag attached to the outer surface of the side portion.

[0008] In the tire according to the first aspect, since the tire skeleton member forming the skeleton portion of the tire is formed of a resin material, for example, compared with a rubber tire in which the skeleton of the tire is formed of a carcass, the rigidity of the tire side portion is high, and the tire side portion is less likely to deform. Therefore, the tensile force acting on the RFID tag due to the deformation of the tire side portion is reduced. Further, in the above tire, since the RFID tag is attached to the outer surface of the side portion of the tire skeleton member, for example, compared with a rubber tire in which the RFID tag is disposed at a position separated from the carcass to the outside of the tire, the tensile force acting on the RFID tag due to the deformation of the tire side portion is reduced. Therefore, in the tire according to the first aspect, compared with the above rubber tire, the tensile force acting on the RFID tag is reduced, so that damage to the RFID tag can be suppressed.

[0009] The tire according to the second aspect of the present invention is the tire according to the first aspect, wherein the RFID tag is disposed radially outside the maximum tire width portion of the tire skeleton member.

[0010] The deformation of the tire side portion when the tire is in contact with the ground is the largest at the maximum tire width portion. Further, the portion on the radially inner side of the maximum tire width portion of the tire side portion, in other words, the portion on the bead portion side tends to have a large deformation because the bead portion is constrained by the rim. Therefore, in the tire according to the second aspect, the RFID tag is disposed radially outside the maximum tire width portion of the tire skeleton member. Thereby, in the tire according to the second aspect, for example, compared with a configuration in which the RFID is disposed at the maximum tire width portion and radially inside the maximum tire width portion, the tensile force acting on the RFID tag is reduced, and damage to the RFID tag can be suppressed.

[0011] The tire according to the third aspect of the present invention is the tire according to the first aspect or the second aspect, and includes a plurality of cords coated with a resin material or rubber, and further has a reinforcing layer extending from the bead portion of the tire skeleton member to the side portion and covering at least the outer surface of the side portion and the RFID tag.

[0012] In the tire according to the third aspect, a reinforcing layer including a plurality of cords covered with a resin material or rubber covers the RFID tag together with the outer surface of the side portion of the tire skeleton member. Therefore, for example, compared with a configuration in which the RFID tag is not covered with the reinforcing layer, breakage of the RFID tag due to damage to the tire side portion can be suppressed.

[0013] The tire according to the fourth aspect of the present invention is the tire according to any one of the first to third aspects, wherein the RFID tag includes a flexible resin case, an RFID chip and an antenna housed in the case, and the case is attached to the outer surface of the side portion.

[0014] In the tire according to the fourth aspect, the RFID tag can be easily incorporated by attaching a case housing the RFID chip and the antenna to the outer surface of the side portion of the tire skeleton member.

[0015] The tire according to the fifth aspect of the present invention is the tire according to the fourth aspect, wherein the case is welded to the side portion.

[0016] In the tire according to the fifth aspect, since the case of the RFID tag is welded to the side portion of the tire skeleton member, it can be fixed simply and firmly, for example, compared with a configuration in which the case is adhered to the side portion with an adhesive.

[0017] The tire according to the sixth aspect of the present invention is the tire according to the fifth aspect, wherein the case is formed of a resin material of the same type as the resin material forming the tire skeleton member.

[0018] In the tire according to the sixth aspect, by making the resin material forming the case of the RFID tag the same type as the resin material forming the tire skeleton member, the case can be firmly fixed to the side portion, for example, compared with a configuration in which they are of different types.

[0019] The tire according to the seventh aspect of the present invention is the tire according to any one of the fourth to sixth aspects, wherein a housing recess for housing at least a part of the case is formed in the side portion.

[0020] In the tire according to the seventh aspect, by using the housing recess, it becomes easy to position the RFID tag on the side portion of the tire skeleton member. Further, in the above tire, since at least a part of the case is housed in the housing recess, for example, the protruding amount of the case from the outer surface of the side portion is reduced as compared with a configuration in which the case is disposed on the outer surface of the side portion.

[0021] The tire according to the eighth aspect of the present invention is the tire according to any one of the fourth to seventh aspects, wherein the antenna extends in the tire circumferential direction.

[0022] In the tire according to the eighth aspect, since the antenna of the RFID tag extends in the tire circumferential direction, for example, compared with a configuration in which the antenna extends from the bead portion side to the crown portion side along the side portion, the antenna is pulled against the deformation of the tire side portion and is prevented from coming off from the RFID chip.

Effect of the Invention

[0023] According to the present invention, in a tire having an RFID tag, damage to the RFID tag can be suppressed.

Brief Description of the Drawings

[0024]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Embodiments for Carrying Out the Invention

[0025] Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. Components denoted by the same reference numerals in each drawing mean the same or similar components. In the embodiments described below, duplicate explanations and reference numerals may be omitted. Also, the drawings used in the following explanations 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 even between multiple drawings.

[0026] Also, 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. Also, 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 is based on the method described in the 2021 edition YEAR BOOK issued by JATMA (Japan Automobile Tire Manufacturers Association).

[0027] 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 "rubber tire").

[0028] (Tire Skeleton Member) The tire 10 of the present embodiment has an annular resin 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 with a joining member 17B at the tire equatorial plane CL.

[0029] 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 radially outer side of the bead portion 12 in the tire diameter direction, and a crown portion 16 continuous with the inner side of the side portion 14 in the tire width direction and connecting the radially outer ends of the respective side portions 14. Note that the circumferential direction, width direction, and diameter direction of the tire skeleton member 17 correspond to the tire circumferential direction, tire axial direction, and tire diameter direction, respectively.

[0030] The tire skeleton member 17 is formed mainly from 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).

[0031] The thermoplastic resin (including thermoplastic elastomer) refers to a polymer compound that softens, flows, and becomes relatively hard and strong when cooled as the temperature rises. In this specification, among these, a polymer compound that softens, flows, and becomes relatively hard and strong when cooled as the temperature rises and has rubber-like elasticity is defined as a thermoplastic elastomer, and a polymer compound that softens, flows, and becomes relatively hard and strong when cooled as the temperature rises but does not have rubber-like elasticity is defined as a non-elastomeric thermoplastic resin for distinction.

[0032] Examples of the thermoplastic resin (including thermoplastic elastomers) include polyolefin thermoplastic elastomers (TPO), polystyrene thermoplastic elastomers (TPS), polyamide thermoplastic elastomers (TPA), polyurethane thermoplastic elastomers (TPU), polyester thermoplastic elastomers (TPC), dynamically crosslinked thermoplastic elastomers (TPV), as well as polyolefin thermoplastic resins, polystyrene thermoplastic resins, polyamide thermoplastic resins, and polyester thermoplastic resins.

[0033] In addition, as the above-mentioned 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.

[0034] 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, etc.

[0035] In addition to the above-mentioned 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.

[0036] Note that 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.

[0037] The bead portion 12 is a portion that fits onto a standard rim via the covering 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 core (not shown) such as a metal cord (e.g., 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 as long as the rigidity of the bead portion 12 can be sufficiently ensured.

[0038] As shown in FIG. 1, the side portion 14 is a portion that constitutes the side portion of the tire 10, and is gently curved so as to protrude outward in the tire width direction from the bead portion 12 toward the crown portion 16.

[0039] The crown portion 16 is a portion 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.

[0040] (Belt layer) A belt layer 28 is provided on the outer side in the tire radial direction of the crown portion 16. This belt layer 28 is configured by spirally winding a reinforcing cord 26 coated with resin 27 in the tire circumferential direction.

[0041] (Reinforcing layer) A reinforcing layer 30 is disposed on the outer surface of the tire skeletal member 17. The reinforcing layer 30 extends from the inner side in the tire radial direction of the bead core 18 toward the outer side in the tire radial direction along the outer surface of the tire skeletal member 17, and further extends to the inner side in the tire radial direction of the bead core 18 on the opposite side beyond the tire equatorial plane CL.

[0042] 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 side view of the tire.

[0043] The reinforcing layer 30 of this embodiment is formed by attaching a ply 30L and a ply 30R, which are described later and 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 skeleton member 17. Specifically, at least 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.

[0044] 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 a resin instead of rubber.

[0045] (Tread) 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 the tread rubber of a conventional ordinary 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 on the tread 32.

[0046] (Covering Rubber) 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 skeleton 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.

[0047] The outer end portion of the covering rubber 24 in the tire radial direction is sandwiched between the reinforcing layer 30 attached to the tire skeletal member 17 and the outer end portion of the tread 32 on the outer side in the tire width direction, and is joined (vulcanization-bonded) to the tread 32 and the tire skeletal member 17. In this embodiment, the entire outer surface of the reinforcing layer 30 attached to the tire skeletal member 17 is covered by the tread 32 and the covering rubber 24.

[0048] As the rubber material constituting the covering rubber 24, a rubber material having higher weather resistance and sealing property with the standard rim than the tire skeletal member 17 is used. The rubber material constituting the covering rubber 24 is the same as the rubber materials used for the sidewalls and bead portions of conventional general pneumatic tires.

[0049] (RFID tag) As shown in FIGS. 1 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). And the RFID tag 40 is attached to the outer surface 14A of the side portion 14 of the tire skeletal member 17. The outer surface 14A of the side portion 14 is the surface on the outer side of the tire of the side portion 14, and also includes the surface constituting the recess provided on the surface. That is, the accommodating recess 17D described later is also included in the outer surface 14A. In this embodiment, the RFID tag 40 is attached only to one side portion 14 as shown in FIG. 2, but the present invention is not limited to this configuration. The RFID tag 40 may be attached to both side portions 14 respectively.

[0050] As shown in FIGS. 1 and 2, the RFID tag 40 is disposed on the outer side in the tire radial direction than the maximum tire width portion 17C of the tire skeletal member 17. In other words, the RFID tag 40 is disposed on the crown portion 16 side than the maximum tire width portion 17C along the side portion 14.

[0051] As shown in FIGS. 4(A) and 4(B), the RFID tag 40 includes a flexible resin case 42, an RFID chip 44 and an antenna 46 housed in the case 42. In this embodiment, a pair of antennas 46 extend from the RFID chip 44 in opposite directions. Further, in this embodiment, the case 42 is formed of the same resin material as the resin material forming the tire skeleton member 17. This case 42 is attached to the outer surface 14A of the side portion 14 of the tire skeleton member 17. Specifically, the case 42 is welded to the side portion 14. The case 42 of this embodiment is plate-shaped and is a substantially quadrilateral shape with a short side curved in an arc shape in plan view, but the shape of the case 42 is not limited to this substantially quadrilateral shape. Further, the case 42 may be, for example, in a film shape.

[0052] Further, as shown in FIG. 3, a housing recess 17D for housing at least a part of the case 42 is formed in the side portion 14 of the tire skeleton member 17. In this embodiment, the entire case 42 is housed in the housing recess 17D of the side portion 14.

[0053] In the tire 10 of this embodiment, in a side view, the direction in which the antenna 46 extends extends in a direction intersecting the reinforcing cords of the reinforcing layer 30. Specifically, in the tire 10, in a side view, the direction in which the antenna 46 extends is inclined within a range of ±15 degrees with respect to the direction orthogonal to the reinforcing cords of the reinforcing layer 30.

[0054] (Operation) Next, the operation of this embodiment will be described. In the tire 10 of this embodiment, the tire skeleton member 17 forming the skeleton portion of the tire is formed of a resin material. Therefore, the tire 10 has, for example, higher rigidity in the tire side portion than a rubber tire in which the skeleton portion of the tire is formed of a carcass, and the tire side portion is less likely to deform. For this reason, the tensile force acting on the RFID tag 40 due to the deformation of the tire side portion is reduced. In addition, in the tire 10, since the RFID tag 40 is attached to the outer surface 14A of the side portion 14 of the tire skeletal member 17, for example, compared with a rubber tire in which the RFID tag 40 is disposed at a position separated from the carcass to the outside of the tire, the tensile force acting on the RFID tag 40 due to the deformation of the tire side portion is reduced. Therefore, in the tire 10 of the present embodiment, compared with the above-described rubber tire, the tensile force acting on the RFID tag 40 is reduced, so that damage to the RFID tag 40 can be suppressed. Note that the "tire side portion" referred to here is a portion corresponding to the side portion 14 of the tire skeletal member 17 in the tire 10.

[0055] Further, the deformation of the tire side portion when the tire is in contact with the ground is greatest at the tire maximum width portion 17C. In addition, the portion of the tire side portion radially inward of the tire maximum width portion 17C, in other words, the portion on the bead portion 12 side, tends to have a large deformation because the bead portion 12 is constrained by the standard rim. For this reason, in the tire 10, the RFID tag 40 is disposed radially outside the tire maximum width portion 17C of the tire skeletal member 17. Thereby, in the tire 10, for example, compared with a configuration in which the RFID tag 40 is disposed at the tire maximum width portion 17C and radially inward of the tire maximum width portion 17C, the tensile force acting on the RFID tag 40 is reduced, and damage to the RFID tag 40 can be suppressed.

[0056] In addition, in the tire 10 of the present embodiment, since the reinforcing layer 30 including a plurality of cords covered with rubber covers the RFID tag 40 together with the outer surface 14A of the side portion 14 of the tire skeletal member 17, for example, compared with a configuration in which the reinforcing layer 30 does not cover the RFID tag 40, damage to the RFID tag 40 due to damage to the tire side portion can be suppressed.

[0057] In addition, in the tire 10 of the present embodiment, the RFID tag 40 can be easily incorporated by welding the case 42 that houses the RFID chip 44 and the antenna 46 to the side portion 14 of the tire skeletal member 17.

[0058] Further, in the tire 10 of the present embodiment, since the case 42 of the RFID tag 40 is welded to the side portion 14 of the tire skeleton member 17, for example, the case 42 can be fixed to the side portion 14 simply and firmly as compared with a configuration in which the case 42 is adhered to the side portion 14 with an adhesive.

[0059] Further, in the tire 10 of the present embodiment, by making the resin material forming the case 42 of the RFID tag 40 the same type as the resin material forming the tire skeleton member 17, for example, the case 42 can be fixed to the side portion 14 firmly as compared with a configuration in which they are of different types.

[0060] In the tire 10 of the present embodiment, the accommodation recess 17D provided in the side portion 14 of the tire skeleton member 17 can be used as positioning of the case 42 with respect to the side portion 14. For this reason, in the tire 10, positioning of the RFID tag 40 with respect to the side portion 14 becomes easy. Further, in the tire 10, since at least a part of the case 42 is accommodated in the accommodation recess 17D, for example, the protruding amount of the case from the outer surface of the side portion 14 is reduced as compared with a configuration in which the case 42 is disposed on the outer surface of the side portion 14.

[0061] [Other Embodiments] As described above, an example of the embodiment of the present invention has been described. However, the embodiments of the present invention are not limited to the above, and it goes without saying that various modifications can be made without departing from the gist thereof. For example, as in the tire 50 shown in FIG. 5, a part of the case 42 of the RFID tag 40 may be embedded in the outer surface 14A of the side portion 14 of the tire skeleton member 17. Specifically, as in the tire 50 of FIG. 5, a configuration may be adopted in which one-half portion in the thickness direction of the case 42 is embedded in the outer surface 14A of the side portion 14. Note that a housing recess for housing (accommodating) the case 42 may be provided in the side portion 14. By adopting such a configuration in which one-half portion in the thickness direction of the case 42 is embedded in the outer surface 14A of the side portion 14 of the tire skeleton member 17, while ensuring the thickness of the side portion 14 in the tire skeleton member 17 (without excessively reducing the rigidity of a part of the side portion), the reinforcing layer 30 can be disposed along the outer surface 14A of the side portion 14. Further, for example, as in the tire 52 shown in FIG. 6, a configuration may be adopted in which the case 42 of the RFID tag 40 is disposed on the outer surface 14A where no recess is formed in the side portion 14 of the tire skeleton member 17.

[0062] Also, in the foregoing embodiment, the case 42 of the RFID tag 40 is welded to the side portion 14, but the present invention is not limited to this configuration, and the case 42 may be adhered to the side portion 14 with an adhesive.

[0063] Furthermore, in the foregoing embodiment, the resin material forming the case 42 and the resin material forming the side portion 14 are the same type of resin material, but the present invention is not limited to this configuration, and the resin material forming the case 42 and the resin material forming the side portion 14 may be different types of resin materials.

[0064] In the foregoing embodiment, the antenna 46 of the RFID tag 40 extends in a direction intersecting the reinforcing cords of the reinforcing layer 30 when viewed from the side of the tire. However, the present invention is not limited to this configuration. As in the tire 54 shown in FIG. 7, the antenna 46 may be configured to extend in the circumferential direction of the tire. When the antenna 46 of the RFID tag 40 extends in the circumferential direction of the tire in this way, for example, compared with a configuration in which the antenna 46 extends from the bead portion 12 side toward the crown portion 16 side along the side portion 14, the antenna 46 is suppressed from being pulled and detached from the RFID chip 44 due to deformation of the tire side portion. Note that the antenna 46 may meander in a wave shape (for example, triangular wave, sine wave shape) with respect to the extending direction of the antenna 46.

[0065] In the foregoing embodiment, the RFID tag 40 is disposed radially outside the maximum tire width portion 17C of the tire skeletal member 17. However, the present invention is not limited to this configuration. For example, as in the tire 56 shown in FIG. 8, the RFID tag 40 may be disposed radially inside the maximum tire width portion 17C of the tire skeletal member 17, or the RFID tag 40 may be disposed at the maximum tire width portion 17C. Even in this case, since the tire skeletal member 17 is formed of a resin material and the RFID tag 40 is attached to the outer surface 14A of the side portion 14, breakage of the RFID tag 40 can be suppressed as described above.

[0066] In the foregoing embodiment, the reinforcing layer 30 is configured to include a plurality of reinforcing cords (not shown) covered with rubber (not shown). However, the present invention is not limited to this configuration. The reinforcing layer 30 may be configured to include a plurality of reinforcing cords (not shown) covered with a resin material (not shown).

[0067] Note that the RFID tag 40 may be attached to the side portion 14 after the tire skeletal member 17 is formed during the manufacture of the tire 10, or may be disposed in a mold for molding the tire half 17A and attached to a portion corresponding to the side portion 14 of the tire half 17A by injection molding the tire half 17A.

Description of Reference Numerals

[0068] 10…tire, 12…bead part, 14…side part, 14A…outer surface, 16…crown part, 17…tire skeleton member, 17C…maximum tire width part, 17D…accommodating recess, 30…reinforcing layer, 40…RFID tag, 42…case, 44…RFID chip, 46…antenna, 50, 52, 54, 56…tire.

Claims

1. An annular resin tire skeleton member including 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; An RFID tag attached to the outer surface of the side portion; and having The RFID tag includes a flexible resin case, an RFID chip and an antenna accommodated in the case, and the case is welded to the outer surface of the side portion, a tire.

2. The RFID tag is disposed on the outer side in the tire radial direction than the maximum tire width portion of the tire skeleton member, the tire according to claim 1.

3. Further comprising a plurality of cords coated with a resin material or rubber, and extending from the bead portion of the tire skeleton member to the side portion to cover at least the outer surface of the side portion and the RFID tag, the tire according to claim 1 or claim 2.

4. 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 any one of claims 1 to 3.

5. The side portion is formed with a receiving recess for receiving at least a part of the case, the tire according to any one of claims 1 to 4.

6. The antenna extends in the tire circumferential direction, the tire according to any one of claims 1 to 5.

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