JP7706311B2 - Non-pneumatic tires - Google Patents

Description

This disclosure relates to non-pneumatic tires.

Patent Document 1 discloses a non-pneumatic tire with embedded electronic components. However, this patent document does not disclose the embedding position of the electronic components in the non-pneumatic tire, and depending on the embedding position of the electronic components, there is a risk that the electronic components may break down due to deformation of the non-pneumatic tire when it touches the ground, etc.

Special table 2019-506319 publication

The objective of this disclosure is to provide a non-pneumatic tire that can prevent failure of embedded electronic components.

The non-pneumatic tire disclosed herein comprises an inner annular portion, an outer annular portion arranged concentrically on the radially outer side of the inner annular portion, a connecting portion connecting the inner annular portion and the outer annular portion, and an electronic component embedded in the inner annular portion or the outer annular portion.

FIG. 1 is an overall side view of a non-pneumatic tire according to a first embodiment; Enlarged view of region II in Figure 1 Cross-sectional view of line III-III in FIG. FIG. 2 is a perspective cross-sectional view of a main part of a non-pneumatic tire according to the embodiment; 1 is a cross-sectional view of a non-pneumatic tire according to a second embodiment. FIG. 2 is a perspective cross-sectional view of a main part of a non-pneumatic tire according to the embodiment; FIG. 11 is an enlarged side view of a main portion of a non-pneumatic tire according to a third embodiment. 8 is a cross-sectional view of a main part taken along line VIII-VIII in FIG.

<Embodiment 1>
A first embodiment of a non-pneumatic tire according to the present disclosure will be described below with reference to Figures 1 to 4. Note that in each figure (as well as Figures 5 to 8), the dimensional ratios in the drawing do not necessarily match the actual dimensional ratios, and the dimensional ratios between the drawings do not necessarily match either.

In each figure, the first direction D1 is the tire axial direction D1 that is parallel to the axis 1b that is the center of rotation of the non-pneumatic tire (hereinafter also referred to as "tire") 1, the second direction D2 is the tire radial direction D2 that is the diameter direction of the tire 1, and the third direction D3 is the tire circumferential direction D3 that is the direction around the axis 1b. The tire equatorial plane S1 is a plane that is perpendicular to the axis 1b and is located at the center of the tire axial direction D1 of the tire 1, and the tire meridian plane is a plane that includes the axis 1b and is perpendicular to the tire equatorial plane S1.

In the tire axial direction D1, the inside is the side closer to the tire equatorial plane S1, and the outside is the side farther from the tire equatorial plane S1. In the tire radial direction D2, the inside is the side closer to the axis 1b, and the outside is the side farther from the axis 1b.

As shown in Figures 1 and 2, the tire 1 according to the first embodiment includes an inner annular portion 2, an outer annular portion 3 arranged concentrically outside the inner annular portion 2, and a connecting portion 1d connecting the inner annular portion 2 and the outer annular portion 3. A tread 6 that comes into contact with the ground is provided on the outside of the outer annular portion 3 in the tire radial direction D2. The tire 1 may include a member for fitting with an axle or wheel on the inside of the inner annular portion 2 in the tire radial direction D2.

The inner annular portion 2, the outer annular portion 3, and the connecting portion 1d (hereinafter collectively referred to as the "support structure 1a") support the load from the vehicle. The support structure 1a is preferably formed of an elastic material. Examples of the base material of the support structure 1a include thermoplastic elastomers such as polyester elastomers, crosslinked rubbers such as natural rubber, or other resins (for example, thermoplastic resins such as polyethylene resins, and thermosetting resins such as polyurethane resins).

From the viewpoint of improving uniformity, it is preferable that the inner annular portion 2 has a cylindrical shape with a constant thickness (dimension in the tire radial direction D2) (not only the same but also approximately the same with some error such as manufacturing error). The thickness of the inner annular portion 2 is not particularly limited, but is set appropriately from the viewpoint of achieving weight reduction and improved durability while sufficiently transmitting force to the connecting portion 1d.

The width of the inner annular portion 2 (dimension in the tire axial direction D1) is set appropriately depending on the application, etc. It is preferable that the inner peripheral surface of the inner annular portion 2 in the tire radial direction D2 is provided with a protrusion (or a recess) 2a or the like to maintain fit for mounting to an axle or wheel.

The inner annular portion 2 includes an inner reinforcing layer 21 that is embedded in the inner annular portion 2 and enhances the rigidity of the inner annular portion 2. The inner reinforcing layer 21 is formed of, for example, fiber-reinforced plastic (FRP), although it is not particularly limited thereto. Examples of fiber-reinforced plastic include glass fiber-reinforced plastic (GFRP) and carbon fiber-reinforced plastic (CFRP). In addition to fiber-reinforced plastic, examples of materials for the inner reinforcing layer 21 include steel cord, cylindrical metal rings, and high modulus resin rings.

The inner reinforcing layer 21 may be composed of a single layer or multiple layers (each layer made of the same material or each layer made of different materials). When composed of multiple layers, the inner reinforcing layer 21 may be a single reinforcing layer wound in a spiral shape, or multiple reinforcing layers arranged concentrically. The inner reinforcing layer 21 may extend continuously or discontinuously along the tire circumferential direction D3.

From the viewpoint of improving uniformity, it is preferable that the outer annular portion 3 has a cylindrical shape with a constant thickness (dimension in the tire radial direction D2) (including the same or approximately the same). The thickness of the outer annular portion 3 is appropriately set from the viewpoint of achieving weight reduction and improved durability while sufficiently transmitting the force from the connecting portion 1d. The width of the outer annular portion 3 (dimension in the tire axial direction D1) is appropriately set according to the application, etc.

The outer annular portion 3 includes an outer reinforcing layer 31 that is embedded in the outer annular portion 3 and increases the rigidity of the outer annular portion 3. The outer reinforcing layer 31 is not particularly limited, but is formed of, for example, fiber-reinforced plastic, similar to the inner reinforcing layer 21. In addition to fiber-reinforced plastic, examples of materials for the outer reinforcing layer 31 include steel cord, cylindrical metal rings, and high-modulus resin rings.

The outer reinforcing layer 31 may be composed of a single layer or multiple layers (each layer made of the same material or each layer made of different materials). When composed of multiple layers, the outer reinforcing layer 31 may be a single reinforcing layer wound in a spiral shape, or multiple reinforcing layers arranged concentrically. The outer reinforcing layer 31 may extend continuously or discontinuously along the tire circumferential direction D3.

The connecting portion 1d includes a plurality of first connecting portions 4 and a plurality of second connecting portions 5. The first connecting portions 4 and the second connecting portions 5 are arranged independently in the tire circumferential direction D3. The connecting portion 1d may extend continuously in the tire circumferential direction D3, for example. The first connecting portions 4 and the second connecting portions 5 may be connected at least partially in the tire circumferential direction D3, for example.

The first connecting portion 4 and the second connecting portion 5 are formed in a plate shape and arranged along the tire circumferential direction D3. The number of the first connecting portions 4 and the second connecting portions 5 is not particularly limited, but is set appropriately from the viewpoint of, for example, achieving weight reduction, noise reduction, improved power transmission, and improved durability while adequately supporting the load from the vehicle.

The first connecting portions 4 and the second connecting portions 5 are alternately arranged in parallel along the tire circumferential direction D3 with a gap G1 therebetween. From the viewpoint of improving uniformity, it is preferable that each gap G1 be constant (including the same and approximately the same).

The thickness (dimension in the tire circumferential direction D3) of the first connecting portion 4 and the second connecting portion 5 is not particularly limited, but for example, the gap G1 in the tire radial direction D2 is constant (including the same and approximately the same) and spreads outward in the tire radial direction D2. The thickness of the first connecting portion 4 and the second connecting portion 5 is appropriately set from the viewpoint of achieving weight reduction and improved durability while sufficiently transmitting the force from the inner annular portion 2 and the outer annular portion 3. Note that the first connecting portion 4 and the second connecting portion 5 may be configured, for example, to have a constant thickness (including the same and approximately the same) and the gap G1 spreads outward in the tire radial direction D2.

As shown in Figures 3 and 4, the first connecting portion 4 extends from one side D1a of the inner annular portion 2 in the tire axial direction D1 (the right side in Figures 3 and 4, also referred to as the "first axial side" hereinafter) toward the other side D1b of the outer annular portion 3 in the tire axial direction D1 (the left side in Figures 3 and 4, also referred to as the "second axial side" hereinafter). The second connecting portion 5 extends from the second axial side D1b of the inner annular portion 2 toward the first axial side D1a of the outer annular portion 3.

The first connecting portion 4 and the second connecting portion 5 extend so as to incline in opposite directions, and intersect when viewed in the tire circumferential direction D3. That is, the first connecting portion 4 and the second connecting portion 5 are arranged in a substantially X-shape when viewed in the tire circumferential direction D3. This forms a closed space 1c between the first connecting portion 4 and the second connecting portion 5 when viewed in the tire circumferential direction D3. As a result, the elasticity of the connecting portion 1d can be increased, and the ride comfort performance of the vehicle can be improved. Note that the first connecting portion 4 and the second connecting portion 5 may extend so as to incline in the same direction, for example.

The width of the inner end 4a of the first connecting portion 4 in the tire radial direction D2 (dimension in the tire axial direction D1) is larger than the width of the center portion 4b of the first connecting portion 4, and the width of the outer end 4c of the first connecting portion 4 in the tire radial direction D2 is larger than the width of the center portion 4b of the first connecting portion 4. Specifically, the width of the first connecting portion 4 is constant (including the same or approximately the same) at the center portion 4b, and increases from the center portion 4b toward the ends 4a and 4c. The widths of the inner end 5a, center portion 5b, and outer end 5c of the second connecting portion 5 are in the same relationship as the widths of the inner end 4a, center portion 4b, and outer end 4c of the first connecting portion 4. The widths of the first connecting portion 4 and the second connecting portion 5 are not particularly limited, but are appropriately set, for example, from the viewpoint of achieving weight reduction and improved durability while sufficiently transmitting the force from the inner annular portion 2 and the outer annular portion 3.

The relationship (size relationship, ratio) between the width and thickness of the first connecting portion 4 and the second connecting portion 5 is not particularly limited, but is set appropriately from the viewpoint of improving durability while reducing ground pressure dispersion. It is preferable that the average width of the first connecting portion 4 and the second connecting portion 5 is larger than the average thickness of the first connecting portion 4 and the second connecting portion 5.

The tread 6 is made of rubber, resin, or the like, as in conventional pneumatic tires, and may have a pattern (groove) on its outer peripheral surface, as in conventional pneumatic tires. The tread 6 is attached to the outer peripheral surface of the outer annular portion 3, for example, by a vulcanizing adhesive.

In this embodiment, the tread 6 is composed of multiple layers. The tread 6 has a first layer 6a that comes into contact with the ground and a second layer 6b that is disposed inside the first layer 6a in the tire radial direction D2. The tread 6 may be composed of a single layer (for example, only the first layer 6a).

As shown in Figures 2 to 4, the tire 1 includes an electronic component 7, which is embedded in the inner annular portion 2. The electronic component 7 is provided inside the inner annular portion 2 so as not to be exposed to the surface. In this embodiment, the electronic component 7 is not embedded in the outer annular portion 3 or the connecting portion 1d. The electronic component 7 includes, but is not limited to, for example, a memory unit for storing information and a communication unit for communicating with the outside. This allows the information in the memory unit to be read by a reading device (reader) and the information to be stored in the memory unit by a writing device (writer).

In this embodiment, the electronic component 7 is, but is not limited to, an RFID tag, for example. The RFID tag is a passive transponder that performs wireless communication with external devices such as a reader or writer. The RFID tag includes an RFID chip having a memory section, and an antenna corresponding to a communication section. As the antenna, various antennas such as a coil-shaped spring antenna, a plate-shaped antenna, and a rod-shaped antenna can be used. For example, an antenna formed by printing a predetermined pattern on a flexible substrate may be used. The memory section in the chip can store information such as identification information such as the serial number and part number of the tire 1, tire information such as the size and speed range of the tire 1, manufacturing information such as the date of manufacture, the place of manufacture, and the lot of materials used, usage management information such as the period of use, mileage, wear state, external damage, and inspection time, and retread information (number of times) of the tread 6.

This allows the above information to be managed even in non-pneumatic tires, which have a smaller area in which information can be displayed compared to pneumatic tires. The electronic component 7 may be, for example, an IC tag, or a piezoelectric element or strain sensor equipped with a detection unit and a communication unit that detect the state of the tire 1. The tire 1 may be configured to include a plurality of the same or different electronic components 7, each of which is embedded in the inner annular portion 2.

From the viewpoint of more reliably suppressing failure of the electronic component 7 due to deformation of the inner annular portion 2, it is preferable that the electronic component 7 is arranged in direct or indirect contact (through an adhesive or a coating material described later) with the inner reinforcing layer 21. That is, it is preferable that the electronic component 7 is arranged between the inner reinforcing layer 21 and the material of the inner annular portion 2. This is because the amount of displacement of the inner annular portion 2 near the inner reinforcing layer 21 when the tire 1 is subjected to an external force is close to the amount of displacement of the inner reinforcing layer 21, which has a higher rigidity than the base material of the inner annular portion 2, so that failure of the electronic component 7 due to deformation of the inner annular portion 2 is less likely to occur. When the inner reinforcing layer 21 is composed of multiple layers, it is preferable that the electronic component 7 is arranged between the multiple layers of the inner reinforcing layer 21 from the viewpoint of increasing the adhesive strength with the electronic component 7.

From the viewpoint of more reliably suppressing failure of the electronic component 7 due to deformation of the inner annular portion 2, it is preferable that the electronic component 7 be disposed further inward in the tire radial direction D2 than the inner reinforcing layer 21.

The electronic component 7 is preferably disposed in a position (first non-connecting position) X1 that avoids the connecting position between the inner annular portion 2 and the connecting portion 1d, from the viewpoint of preventing failure of the electronic component 7 and making it easier to bring a reading device or the like close to the electronic component 7 from the outside of the inner annular portion 2 in the tire radial direction D2.

As shown in FIG. 4, the tire 1 includes a mark portion 8 that indicates the position where the electronic component 7 is embedded. The mark portion 8 is not particularly limited, but is arranged, for example, on the outer peripheral surface of the inner annular portion 2 so as to overlap the position where the electronic component 7 is embedded when viewed in the tire radial direction D2. The mark portion 8 may be arranged, for example, on the side surface of the inner annular portion 2 (one or both sides in the tire axial direction D1) so as to overlap the position where the electronic component 7 is embedded when viewed in the tire axial direction D1, or may be arranged on the inner peripheral surface of the inner annular portion 2 or the outer annular portion 3. The mark portion 8 is not particularly limited, but is, for example, a triangular (or circular) depression or protrusion.

Next, we will show an example of how to embed the electronic component 7 in the inner annular portion 2.

First, the electronic components 7 are set in a mold for molding the support structure 1a. In this embodiment, the inner reinforcing layer 21 on which the electronic components 7 are attached or placed is set in the mold for the support structure 1a. If necessary, the outer reinforcing layer 31 is also set in the mold. If the inner reinforcing layer 21 is composed of multiple layers, the electronic components 7 may be sandwiched between the multiple layers. Next, material is injected into the mold and hardened to mold the support structure 1a. This allows the electronic components 7 to be embedded in the inner annular portion 2. Then, the tread 6 is attached to the outer peripheral surface of the outer annular portion 3.

Before attaching or placing the electronic component 7 on the inner reinforcing layer 21, the electronic component 7 may be coated with, for example, the same material as the support structure 1a (or a different material). This allows the coated electronic component 7 to be bonded to the inner reinforcing layer 21, making it difficult for the electronic component 7 to peel off.

If the electronic component 7 is coated, it is preferable to perform a surface treatment on the outer surface of the coating in order to increase the bonding strength between the coating and the injection material during molding.

For example, after molding the support structure 1a, a recess may be provided in the inner annular portion 2, the electronic component 7 may be attached or placed in the recess, and the recess may be covered, thereby embedding the electronic component 7 in the inner annular portion 2.

<Embodiment 2>
Hereinafter, the second embodiment will be described with reference to Fig. 5 and Fig. 6. As shown in Fig. 5 and Fig. 6, in the second embodiment, the electronic component 7 is embedded in the outer annular portion 3. Note that the tire 1 may be configured to include a plurality of the same or different electronic components 7, each of which is embedded in the outer annular portion 3.

The electronic component 7 is preferably arranged in contact with the outer reinforcement layer 31 from the viewpoint of preventing the electronic component 7 from breaking down due to deformation of the outer annular portion 3. In other words, the electronic component 7 is preferably arranged between the outer reinforcement layer 31 and the material of the outer annular portion 3. When the outer reinforcement layer 31 is composed of multiple layers, the electronic component 7 is preferably arranged between the multiple layers of the outer reinforcement layer 31 from the viewpoint of increasing the bonding strength with the electronic component 7.

The electronic component 7 is preferably disposed in a position (second non-connecting position) X2 that avoids the connecting position between the outer annular portion 3 and the connecting portion 1d, from the viewpoint of preventing the electronic component 7 from being broken due to deformation of the outer annular portion 3 and improving communication between the electronic component 7 and a reading device or the like.

The electronic components 7 are preferably disposed inward in the tire radial direction D2 from the viewpoint of preventing failure of the electronic components 7 due to deformation of the outer annular portion 3 or the tread 6.

The outer annular portion 3 includes a mark portion 8 that indicates the position where the electronic component 7 is embedded. The mark portion 8 is not particularly limited, but for example, is arranged on the inner peripheral surface of the outer annular portion 3 so as to overlap the position where the electronic component 7 is embedded when viewed in the tire radial direction D2. The mark portion 8 may be arranged on one or both sides of the outer annular portion 3 so as to overlap the position where the electronic component 7 is embedded when viewed in the tire axial direction D1, or may be arranged on the inner annular portion 2. The mark portion 8 is not particularly limited, but for example, is a triangular (or circular) depression or protrusion.

The rest of the configuration is the same as in embodiment 1, so a description is omitted. The method of embedding the electronic component 7 is the same as in embodiment 1.

<Embodiment 3>
Hereinafter, the third embodiment will be described with reference to Fig. 7 and Fig. 8. As shown in Fig. 7 and Fig. 8, in the third embodiment, the inner annular portion 2 has an electronic component 7 embedded therein and includes a protrusion 9 protruding from the inner annular portion 2 toward the connecting portion 1d side (outside) in the tire radial direction D2.

The outer annular portion 3 may be configured to have a protrusion 9 that protrudes toward the connecting portion 1d side (inner side) in the tire radial direction D2. The tire 1 may also be configured to have, for example, a plurality of identical or different electronic components 7, and the inner annular portion 2 and/or the outer annular portion 3 may be configured to have a plurality of protrusions 9 in which the respective electronic components 7 are embedded.

From the viewpoint of preventing damage to the electronic component 7 due to deformation of the support structure 1a, it is preferable that the protrusions 9 are arranged on the outer peripheral surface of the inner annular portion 2, which is less susceptible to deformation compared to the outer annular portion 3.

The protrusion 9 is preferably disposed at the first non-connecting position X1 (second non-connecting position X2) from the viewpoint of more reliably suppressing failure of the electronic component 7. Note that the protrusion 9 may be connected to, for example, the inner ends 4a, 5a (outer ends 4c, 5c) of the first connecting portion 4 and the second connecting portion 5 from the viewpoint of increasing the bonding strength with the support structure 1a.

The protrusion 9 includes, but is not limited to, a display surface 91 that displays information about the tire 1. Examples of information that can be displayed on the display surface 91 include identification information such as a serial number or a part number, and manufacturing information such as tire size or manufacturing date, as well as characters, symbols, figures, bar codes, and two-dimensional bar codes.

The protrusion 9 is preferably disposed on the outside of the tire axial direction D1 from the viewpoint of improving the workability of the display surface 91 and the visibility of the display surface 91. From the viewpoint of preventing damage due to buckling of the protrusion 9, it is preferable that the protrusion 9 is connected to only one of the inner annular portion 2 and the outer annular portion 3. In other words, it is preferable that the inner annular portion 2 and the outer annular portion 3 are not connected by the protrusion 9.

The protrusion 9 is not particularly limited, but may be formed, for example, in a substantially rectangular flat plate shape, with the display surface 91 (or, if the display surface 91 is not provided, a surface equivalent to the display surface 91) arranged in a direction intersecting with the tire axial direction D1. Note that the protrusion 9 may be arranged, for example, in a direction in which the display surface 91 intersects with the tire radial direction D2, or in a position in which the display surface 91 intersects with the tire circumferential direction D3.

The protrusion 9 is preferably molded integrally with the inner annular portion 2 (outer annular portion 3) from the viewpoint of increasing the bonding strength with the support structure 1a. Note that the protrusion 9 may be formed separately from the inner annular portion 2 (outer annular portion 3) and bonded to the inner annular portion 2 (outer annular portion 3) by adhesion or welding, for example. The other configurations are the same as those of the first embodiment, and therefore description thereof will be omitted.

As described above, as in the above embodiment, the tire 1 is preferably configured to include an inner annular portion 2, an outer annular portion 3 concentrically arranged outside the inner annular portion 2 in the tire radial direction D2, a connecting portion 1d connecting the inner annular portion 2 and the outer annular portion 3, and an electronic component 7 embedded in the inner annular portion 2 or the outer annular portion 3.

With this configuration, by embedding the electronic component 7 in the inner annular portion 2 or the outer annular portion 3, which are less susceptible to deformation compared to the connecting portion 1d, it is possible to prevent the embedded electronic component 7 from breaking down.

In addition, by embedding the electronic component 7 in the inner annular portion 2 or the outer annular portion 3, even if the electronic component 7 peels off within the inner annular portion 2 or the outer annular portion 3, the electronic component 7 can be prevented from peeling off from the inner annular portion 2 or the outer annular portion 3. Furthermore, by embedding the electronic component 7 in the inner annular portion 2 or the outer annular portion 3, it can be prevented, for example, from the electronic component 7 being unintentionally replaced.

In addition, in the tire 1 according to the above embodiment, it is preferable that the electronic component 7 is embedded only in the inner annular portion 2.

With this configuration, by embedding the electronic components 7 in the inner annular portion 2, which is attached to the wheel and is less susceptible to deformation compared to the outer annular portion 3, and which is less susceptible to the effects of heat generated by deformation of the tread 6 and the connecting portion 1d, it is possible to prevent the embedded electronic components 7 from breaking down.

In addition, in the tire 1 according to the above embodiment, the electronic component 7 may be embedded only in the outer annular portion 3.

With this configuration, by embedding the electronic components 7 in the outer annular portion 3, which is less susceptible to deformation compared to the connecting portion 1d, it is possible to prevent the embedded electronic components 7 from breaking down.

In addition, in the tire 1 according to the above embodiment, it is preferable that the electronic component 7 is embedded in a position that avoids the connection position between the inner annular portion 2 or the outer annular portion 3 and the connection portion 1d (within the first non-connecting position X1 or the second non-connecting position X2).

With this configuration, by embedding the electronic component 7 in the first non-connecting position X1 or the second non-connecting position X2, where the load from the connecting portion 1d is less affected and deformation is less, it is possible to prevent the embedded electronic component 7 from breaking down.

In addition, in the tire 1 according to the above embodiment, it is preferable that the inner annular portion 2 or the outer annular portion 3 has a protrusion 9 that protrudes toward the connecting portion 1d in the tire radial direction D2, and the electronic component 7 is embedded in the protrusion 9.

According to this configuration, by embedding the electronic component 7 in the protrusion 9 of the inner annular portion 2 or the outer annular portion 3, which is less likely to deform compared to the connecting portion 1d, it is possible to prevent the embedded electronic component 7 from breaking down. In addition, by embedding the electronic component 7 in the protrusion 9, the protrusion 9 can be used as a marker for the position where the electronic component 7 is embedded.

The tire 1 is not limited to the configuration of the above-mentioned embodiment, and is not limited to the above-mentioned effects. Furthermore, the tire 1 can of course be modified in various ways without departing from the spirit of the present invention. For example, it is of course possible to arbitrarily select one or more of the configurations and methods of the above-mentioned embodiments 1 to 3 and adopt them in the configurations and methods of other embodiments.

DESCRIPTION OF SYMBOLS 1...Non-pneumatic tire, 1a...Support structure, 1b...Axis, 1c...Closed space, 1d...Connection part, 2...Inner annular part, 21...Inner reinforcement layer, 3...Outer annular part, 31...Outer reinforcement layer, 4...First connection part, 5...Second connection part, 6...Tread, 7...Electronic component, 8...Mark part, 9...Protrusion, 91...Display surface, X1...First unconnected position, X2...Second unconnected position

Claims (5)

the tire has an inner annular portion, an outer annular portion concentrically arranged on the outer side of the inner annular portion in the tire radial direction, a connecting portion connecting the inner annular portion and the outer annular portion, and an electronic component embedded in the inner annular portion or the outer annular portion,
the inner annular portion or the outer annular portion includes a protrusion protruding toward the connecting portion in a tire radial direction,
The electronic component is embedded in the protrusion,
a thickness of the protrusion in an axial direction of the tire is smaller than a length of the protrusion in a radial direction of the tire . The non-pneumatic tire of claim 1 , wherein the protrusion is provided on the inner annular portion. The non-pneumatic tire of claim 1 , wherein said projections are provided on said outer annular portion. The non-pneumatic tire according to claim 1 , wherein the protrusion is disposed at a position that avoids a connection position between the inner annular portion or the outer annular portion and the connecting portion. The non-pneumatic tire of claim 1 , wherein the protrusion comprises a display surface that displays tire information .