tire

Abstract

The present invention aims to broaden the range of visual effects that can be expressed in decorative parts on the sidewall of a tire. [Solution] The tire of the present invention has a decorative portion formed on the sidewall portion, in which a specific pattern is repeated in the tire radial direction and tire circumferential direction, and the specific pattern is formed by ridges and minute protrusions having a narrower width than the ridges, and the ridges and minute protrusions are arranged alternately and repeatedly in a predetermined direction.

Description

Technical Field

[0001] The present invention relates to a tire.

Background Art

[0002] Conventionally, it has been proposed to form fine protrusions on the decorative portion of the sidewall portion of a tire to form a pattern region having contrast (see, for example, Patent Document 1). According to this configuration, it is said that contrast can be exhibited over the entire pattern region.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] An object of the present invention is to widen the range of expression of the visual effect of the decorative portion of the sidewall portion of a tire.

Means for Solving the Problems

[0005] The gist configuration of the present invention is as follows. (1) A tire having a decorative portion formed on a sidewall portion, in which a specific pattern is repeated in the tire radial direction and the tire circumferential direction, wherein the specific pattern is formed by ridges and minute protrusions having a width narrower than the ridges, and the ridges and the minute protrusions are alternately and repeatedly arranged in a predetermined direction, Furthermore, the phrase "alternating ridges and microprojections" means that one or more adjacent ridges and one or more adjacent microprojections are repeatedly alternating, and is not limited to cases where only one ridge and one microprojection are alternating.

[0006] Here, the maximum width of the microprojections is narrower than the maximum width of the ridges, and the maximum width of each ridge is 15 mm or less. Furthermore, the inclination angle of the lateral surfaces of the microprojections is smaller than the inclination angle of the lateral surfaces of the ridges, and the inclination angle φ / 2 of the lateral surfaces of the ridges is 60° or less.

[0007] (2) The tire according to (1), wherein edges are formed between the specific patterns.

[0008] (3) The specific pattern is arranged in multiple rows, The tire according to (1) or (2), wherein the ridges extend in different directions between adjacent rows.

[0009] (4) The tire according to (1) or (2), wherein the ridge extends in the same direction over the entire area of ​​the decorative part.

[0010] (5) The tire according to (2), wherein the minute protrusions are formed over the entire area of ​​the edge.

[0011] (6) The tire according to (2), wherein the minute protrusions are formed only on a part of the edge. [Effects of the Invention]

[0012] According to the present invention, the range of visual effects that can be expressed in the decorative parts of the tire sidewall can be broadened. [Brief explanation of the drawing]

[0013] [Figure 1] This is a side view of an example of a tire according to one embodiment of the present invention. [Figure 2]It is a partial plan view showing a first example of a decorative part. [Figure 3] It is a partial plan view showing a second example of a decorative part. [Figure 4] It is a partial plan view showing a third example of a decorative part. [Figure 5] It is a partial plan view showing a fourth example of a decorative part. [Figure 6] It is a plan view showing a part where minute projections are formed. [Figure 7A] It is a figure for explaining the dimensions of a ridge. [Figure 7B] It is a figure for explaining the dimensions of minute projections. [Figure 8] It is a schematic cross-sectional view in the tire width direction showing an arrangement example of a communication device. [Figure 9] It is a schematic cross-sectional view in the tire width direction showing an arrangement example of a communication device.

Mode for Carrying Out the Invention

[0014] Hereinafter, embodiments of the present invention will be exemplified and described in detail with reference to the drawings. Regarding the internal structure of the tire, since it can be the same as the conventional one, detailed description is omitted. As an example, the tire can be provided with a pair of bead parts, a pair of sidewall parts continuous with the pair of bead parts, and a tread part continuous between the pair of sidewall parts. Also, the tire can be provided with a carcass straddling the pair of bead parts in a toroidal shape. Further, the tire can be provided with a belt disposed on the outer side in the tire radial direction of the crown part of the carcass.

[0015] FIG. 1 is a side view of an example of a tire according to an embodiment of the present invention. As shown in FIG. 1, this tire 1 forms a decorative portion on the sidewall portion with characters, patterns, trademarks, etc. This tire 1 has a decorative portion 2 having a plurality of concave portions or convex portions (two locations in the illustrated example). In the decorative portion located between the decorative portions 2 composed of a plurality of concave portions or convex portions at two locations, in the illustrated example, characters "ABC", "DEF", "GHI", "JKLMN", trademark "X", and tire size are illustrated. Actually, a distinguishable trademark (product name, series name, company logo, etc.) or the actual tire size can be displayed.

[0016] FIG. 2 is a partial plan view showing a first example of the decorative portion. As shown in FIG. 2, in this tire 1, a decorative portion 2 in which a specific pattern is repeated in the tire radial direction and the tire circumferential direction is formed on the sidewall portion.

[0017] In the illustrated example, the specific pattern is in the shape of a balance weight (a shape in which the width of the central portion is smaller and recessed with respect to the widths of both ends in the longitudinal direction) in a plan view, but it is not limited to this case and can have various planar shapes. As an example, a circular shape, an elliptical shape, a polygonal shape, a star shape, a leaf shape, etc. in a plan view can be mentioned. Also, the balance weight shape in the illustrated example is a complementary shape configured such that both ends in the longitudinal direction of one specific pattern fit into the recessed portion at the longitudinal center of the specific pattern (rotated approximately 90°) adjacent to it in the longitudinal direction. Thus, it is also preferable that the specific pattern has a complementary shape.

[0018] The specific pattern is formed by a ridge 3 and minute protrusions 4 having a width narrower than the ridge 3. The ridge 3 and the minute protrusions 4 are alternately and repeatedly arranged in a predetermined direction (within the specific pattern).

[0019] The aforementioned specific patterns are arranged in multiple rows. Within the same row, in this example, adjacent weight shapes are rotated approximately 90° alternately so that they fit together complementaryly. In adjacent rows to a given row, the weight shapes are offset by one pitch (the width of one weight) from that row so that they fit together complementaryly even between rows.

[0020] Figure 7A is a diagram illustrating the dimensions of the ridge. Figure 7B is a diagram illustrating the dimensions of the micro-projections. As mentioned above, the maximum width w1 of the micro-projection 4 is narrower than the maximum width w2 of the ridge 3, and the maximum width w2 of the ridge 3 is 15 mm or less. Also, the inclination angle θ / 2 of the side surface of the micro-projection 4 is smaller than the inclination angle φ / 2 of the side surface of the ridge 3, and the inclination angle φ / 2 of the side surface of the ridge 3 is 60° or less. The height h1 of the microprojection 4 is not particularly limited, but can be, for example, 0.1 to 0.6 mm, and the maximum width w1 of the microprojection 4 is not particularly limited, but can be, for example, 0.05 to 0.5 mm. Also, the inclination angle θ / 2 of the side surface of the microprojection 4 is not particularly limited, but can be, for example, 5 to 35°.

[0021] As shown in Figure 2, a border 5 is formed between the specific patterns. In the first example shown in Figure 2, the border 5 is made up of a plane having the same height as the base surface of the sidewall portion of the tire 1. The following describes the effects and advantages of the tire 1 of this embodiment.

[0022] The tire 1 of this embodiment has a decorative section 2 formed in which a specific pattern is repeated in the tire radial direction and the tire circumferential direction. The specific pattern is formed by ridges 3 and minute protrusions 4 having a narrower width than the ridges 3, and the ridges 3 and minute protrusions 4 are arranged alternately in a predetermined direction. Light incident on the decorative part 2 is attenuated as it repeatedly reflects off the sides of adjacent micro-protrusions 4 and is reflected outwards from the tire 1. As a result, the micro-protrusions 4 produce a contrast effect, making the area where the micro-protrusions 4 are formed appear darker. According to the configuration of this embodiment, since the ridges 3 and micro-protrusions 4 are arranged alternately in a repeating pattern, areas that appear brighter due to the ridges 3 and areas that appear darker due to the micro-protrusions 4 alternately repeat, so that the overall pattern appears to have a brightness intermediate between these two. Furthermore, when the light is strong, specific patterns are easier to recognize due to reflection by ridge 3, while even when the light is weak, specific patterns are easier to recognize due to the contrast effect of micro-protrusions 4. As described above, the tire 1 of this embodiment provides a different visual effect from conventional tire 1, thereby broadening the range of visual effect expression for the decorative part 2 on the sidewall of the tire 1.

[0023] It is preferable that edges are formed between specific patterns, which makes it easier to recognize each individual pattern.

[0024] Figure 3 is a partial plan view showing a second example of the decorative section. In the example shown in Figure 2, each specific pattern is identical. That is, within each specific pattern, the direction of extension of the ridge 3 was the same as the direction of the weight's short side (it is also possible to unify the direction of extension of multiple ridges 3 to the direction of the long side). The specific patterns are arranged in multiple rows, and the ridges 3 extend in different directions between adjacent rows. On the other hand, in the second example shown in Figure 3, the decorative section 2 has two types: one in which the direction of extension of the ridge 3 is the direction of the weight's short side, and another in which the direction of extension of the ridge 3 is the direction of the weight's long side, and different types are arranged between adjacent specific patterns. As a result, the ridges 3 extend in the same direction throughout the entire area of ​​the decorative section 2. In the example in Figure 2, changing the orientation of the ridges 3 makes it easier to recognize each individual pattern. Also, in the example in Figure 3, having the ridges 3 all facing the same direction enhances the effect of the entire decorative section 2 glowing.

[0025] Figure 4 is a partial plan view showing a third example of the decorative part. The example shown in Figure 4 differs from the first example shown in Figure 2 in that minute protrusions (similar to the minute protrusions 4 in a specific pattern shown in Figure 7B, etc.) are formed over the entire edge 5. With this configuration, compared to the first example shown in Figure 2, the edge 5 becomes relatively easier to recognize due to the contrast effect of the minute protrusions, and certain patterns can be made relatively less conspicuous.

[0026] Figure 5 is a partial plan view showing a fourth example of the decorative part. The example shown in Figure 5 differs from the first example shown in Figure 2 and the third example shown in Figure 4 in that minute protrusions 5a (similar to the minute protrusions 4 in a specific pattern shown in Figure 7B, etc.) are formed only on a part of the edge 5. Specifically, in the illustrated example, the minute protrusions 5a are arranged to form the width centerline of the edge 5. This configuration makes it easier to recognize the contour of a specific pattern.

[0027] The maximum diameter (the maximum distance between two points on the contour line of a particular pattern) in a planar view of a particular pattern is not particularly limited, but can be, for example, 5.0 to 30.0 mm.

[0028] The density of specific patterns in the decorative section 2 is not particularly limited, but for example, 0.5 to 4 patterns / cm 2 It can be done this way.

[0029] Figure 6 is a plan view showing the portion where the micro-protrusions are formed. As shown in Figure 6, the micro-protrusions 4 are preferably asterisk-shaped in plan view. That is, the micro-protrusions 4 are preferably shaped having multiple extending portions radiating from the center in plan view. The number, width, and length of the extending portions are not particularly limited and can be set as appropriate. The spacing between the centers of the multiple asterisk shapes is also not particularly limited and can be set as appropriate. Furthermore, as shown in the figure, some of the extending portions between the multiple asterisk shapes may be connected. The planar shape of the micro-protrusions 4 can be various, and the above asterisk shape is an example.

[0030] The number density of the microprojections 4 is not particularly limited, but for example, 10 to 40 per cm. 2 It can be done this way.

[0031] The following describes examples of communication device placement. Figure 8 is a schematic cross-sectional view in the tire width direction showing an example of communication device placement for passenger car tires. Figure 9 is a schematic cross-sectional view in the tire width direction showing an example of communication device placement for truck and bus tires.

[0032] The tire may be equipped with RF tags as communication devices 100, 200. The RF tag comprises an IC chip and an antenna. The RF tag may be positioned, for example, sandwiched between multiple identical or different components that make up the tire. This makes it easier to attach the RF tag during tire production and improves the productivity of tires equipped with RF tags. In this example, the RF tag may be positioned, for example, sandwiched between a bead filler and other components adjacent to the bead filler. The RF tag may be embedded within one of the components that make up the tire. This reduces the load on the RF tag compared to when it is sandwiched between multiple components that make up the tire. This improves the durability of the RF tag. In this example, the RF tag may be embedded within a rubber component such as the tread rubber or side rubber. It is preferable that RF tags are not placed at locations that are boundaries between members with different rigidities in the peripheral length direction, which is the direction along the outer surface of the tire in a cross-sectional view in the tire width direction. By doing so, RF tags are not placed at locations where strain is likely to concentrate due to rigidity differences. Therefore, the load applied to RF tags can be reduced. This improves the durability of RF tags. In this example, it is preferable that RF tags are not placed at locations that are boundaries between, for example, the end of the carcass and a member adjacent to the end of this carcass (e.g., side rubber) in a cross-sectional view in the tire width direction. The number of RF tags is not particularly limited. A tire may have only one RF tag, or it may have two or more RF tags. Here, RF tags are used as an example of a communication device, but other communication devices may be used.

[0033] The RF tag may be placed, for example, on the tire tread. In this way, the RF tag will not be damaged by a tire side cut. The RF tag may be positioned, for example, in the center of the tread in the tire width direction. The center of the tread is a position where flexing is less likely to concentrate in the tread. This reduces the load on the RF tag, thereby improving its durability. It also suppresses differences in communication with the RF tag from both outer sides of the tire in the tire width direction. In this example, the RF tag may be positioned, for example, within a range of half the tread width centered on the tire equator in the tire width direction. The RF tag may be placed, for example, at the tread edge in the tire width direction. If the position of the reader that communicates with the RF tag is predetermined, the RF tag may be placed, for example, at one tread edge closest to this reader. In this example, the RF tag may be placed, for example, within a quarter of the tread width in the tire width direction, with the tread edge as the outer edge.

[0034] The RF tag may be positioned on the inner side of the tire cavity, for example, beyond the carcass, which includes one or more carcass plies that span between the bead portions. This makes the RF tag less susceptible to damage from impacts applied from outside the tire, such as side cuts or nail punctures. As an example, the RF tag may be positioned in close contact with the inner surface of the carcass facing the inner cavity. As another example, if there is another component on the inner side of the tire cavity beyond the carcass, the RF tag may be positioned, for example, between the carcass and the other component located on the inner side of the carcass facing the inner cavity. An example of another component located on the inner side of the tire cavity beyond the carcass is the inner liner that forms the inner surface of the tire. As yet another example, the RF tag may be attached to the inner surface of the tire facing the inner cavity. By configuring the RF tag to be attached to the inner surface of the tire, it becomes easier to attach the RF tag to the tire and to inspect and replace the RF tag. In other words, the ease of attachment and maintenance of the RF tag can be improved. Furthermore, by attaching the RF tag to the inner surface of the tire, it is possible to prevent the RF tag from becoming the core of tire failure, compared to a configuration where the RF tag is embedded inside the tire. Furthermore, if the carcass has multiple carcass plies and there are positions where multiple carcass plies overlap, the RF tag may be placed between the overlapping carcass plies.

[0035] The RF tag may be positioned, for example, on the tire tread, outside the belt, which includes one or more belt plies, in the radial direction of the tire. For example, the RF tag may be positioned outside the belt in the radial direction of the tire, in close contact with the belt. Another example is when a reinforcing belt layer is provided, the RF tag may be positioned outside the reinforcing belt layer in the radial direction of the tire, in close contact with the reinforcing belt layer. Yet another example is when the RF tag is embedded in the tread rubber, outside the belt in the radial direction of the tire. By positioning the RF tag outside the belt in the tire tread, communication with the RF tag from the outside of the tire in the radial direction is less likely to be hindered by the belt. Therefore, communication with the RF tag from the outside of the tire in the radial direction of the tire can be improved. Furthermore, the RF tag may be positioned, for example, in the tire tread area, radially inward from the belt. In this way, the outer side of the RF tag in the radial direction of the tire is covered by the belt, making the RF tag less susceptible to damage from impacts from the tread surface or nail punctures. As an example, the RF tag may be positioned in the tire tread area between the belt and the carcass located radially inward from the belt. Furthermore, if the belt has multiple belt plies, the RF tag may be positioned between any two belt plies on the tire tread. In this way, the outer side of the RF tag in the radial direction of the tire is covered by one or more belt plies, making the RF tag less susceptible to damage from impacts from the tread surface or nail punctures.

[0036] The RF tag may be positioned, for example, sandwiched between the cushioning rubber and the tread rubber, or between the cushioning rubber and the side rubber. In this way, the impact on the RF tag can be mitigated by the cushioning rubber. Therefore, the durability of the RF tag can be improved. Furthermore, the RF tag may be embedded, for example, within the cushion rubber. The cushion rubber may also be composed of multiple adjacent rubber members of the same or different types. In such cases, the RF tag may be positioned sandwiched between the multiple rubber members constituting the cushion rubber.

[0037] The RF tag may be placed, for example, in the sidewall or bead area of ​​the tire. The RF tag may be placed, for example, in the sidewall or bead area on one side that is closer to the reader that can communicate with the RF tag. This improves the communication between the RF tag and the reader. As an example, the RF tag may be placed between the carcass and the side rubber, or between the tread rubber and the side rubber. The RF tag may be positioned, for example, between the position of the tire's maximum width and the position of the tread surface in the tire's radial direction. This configuration improves communication with the RF tag from the outside of the tire in the tire's radial direction compared to a configuration where the RF tag is positioned inside the position of the tire's maximum width in the tire's radial direction. The RF tag may be positioned, for example, radially inward from the point of maximum tire width. This positioning places the RF tag near the highly rigid bead, thus reducing the load on the RF tag and improving its durability. As another example, the RF tag may be positioned adjacent to the bead core in either the radial or widthwise direction. Strain is less likely to concentrate near the bead core, further reducing the load on the RF tag and improving its durability. In particular, it is preferable that the RF tag be positioned radially inward from the point of maximum tire width, and radially outward from the bead core of the bead portion. This improves the durability of the RF tag, and also makes communication between the RF tag and the reader less likely to be hindered by the bead core, thereby improving the communication performance of the RF tag. Furthermore, if the side rubber is composed of multiple identical or different rubber members adjacent to each other in the radial direction of the tire, the RF tag may be positioned sandwiched between the multiple rubber members that make up the side rubber.

[0038] The RF tag may be positioned sandwiched between the bead filler and a component adjacent to the bead filler. This allows the RF tag to be placed in a location where strain is less likely to concentrate due to the placement of the bead filler. Therefore, the load on the RF tag can be reduced, thereby improving the durability of the RF tag. The RF tag may be positioned, for example, sandwiched between the bead filler and the carcass. The portion of the carcass that sandwiches the RF tag together with the bead filler may be located either on the outside or inside of the tire width direction relative to the bead filler. If the portion of the carcass that sandwiches the RF tag together with the bead filler is located on the outside of the tire width direction relative to the bead filler, the load on the RF tag from impacts and damage from the outside of the tire in the tire width direction can be further reduced. This can further improve the durability of the RF tag. Furthermore, the bead filler may include a portion positioned adjacent to the side rubber. In such a case, the RF tag may be positioned sandwiched between the bead filler and the side rubber. Furthermore, the bead filler may include a portion positioned adjacent to the rubber chafer. In such a case, the RF tag may be positioned sandwiched between the bead filler and the rubber chafer.

[0039] The RF tag may be positioned sandwiched between a stiffener and a member adjacent to the stiffener. This allows the RF tag to be placed in a location where strain is less likely to concentrate due to the stiffener's placement. Therefore, the load on the RF tag can be reduced, thereby improving the durability of the RF tag. The RF tag may also be positioned, for example, sandwiched between a stiffener and a side rubber. Furthermore, the RF tag may be positioned, for example, sandwiched between the stiffener and the carcass. The portion of the carcass that sandwiches the RF tag together with the stiffener may be located either on the outside or inside of the tire width direction relative to the stiffener. If the portion of the carcass that sandwiches the RF tag together with the stiffener is located on the outside of the tire width direction relative to the stiffener, the load on the RF tag due to impacts or damage from the outside of the tire in the tire width direction can be further reduced. This can further improve the durability of the RF tag. The stiffener may include a portion positioned adjacent to the rubber chafer. In such a case, the RF tag may be positioned sandwiched between the stiffener and the rubber chafer. The stiffener may have a portion adjacent to the hat rubber on the outside in the tire width direction. In such a case, the RF tag may be positioned sandwiched between the stiffener and the hat rubber. The stiffener may be composed of multiple rubber members with different hardnesses. In such a case, the RF tag may be positioned sandwiched between the multiple rubber members that make up the stiffener. The RF tag may be positioned sandwiched between a hat elastic and a component adjacent to the hat elastic. For example, the RF tag may be positioned sandwiched between a hat elastic and a carcass ply. In this way, the impact on the RF tag can be mitigated by the hat elastic. Therefore, the durability of the RF tag can be improved.

[0040] The RF tag may be positioned, for example, sandwiched between a rubber chafer and a side rubber. This allows the RF tag to be placed in a location where strain is less likely to concentrate due to the placement of the rubber chafer. Therefore, the load on the RF tag can be reduced, thereby improving the durability of the RF tag. The RF tag may be positioned, for example, sandwiched between a rubber chafer and a carcass. This reduces the load on the RF tag from impacts and damage from the rim, thereby improving the durability of the RF tag.

[0041] The RF tag may be positioned sandwiched between a nylon chafer and another adjacent member on the outer or inner side of the nylon chafer in the tire width direction. This arrangement makes it less likely for the RF tag's position to shift during tire deformation. Therefore, the load on the RF tag during tire deformation can be reduced, thereby improving the durability of the RF tag. The nylon chafer may, for example, have a portion adjacent to the rubber chafer on the outer side in the tire width direction. In this case, the RF tag may be positioned sandwiched between the nylon chafer and the rubber chafer. The nylon chafer may, for example, have a portion adjacent to the side rubber on the outer side in the tire width direction. In this case, the RF tag may be positioned sandwiched between the nylon chafer and the side rubber. The nylon chafer may, for example, have a portion adjacent to the stiffener on the inner side in the tire width direction. In this case, the RF tag may be positioned sandwiched between the nylon chafer and the stiffener. The nylon chafer may also have a portion adjacent to the hat rubber on the inner side in the tire width direction. In this case, the RF tag may be positioned sandwiched between the nylon chafer and the hat rubber. Furthermore, the nylon chafer may, for example, have a portion adjacent to the carcass on the inner side in the tire width direction. In this case, the RF tag may be positioned sandwiched between the nylon chafer and the carcass. Furthermore, the nylon chafer may, for example, have a portion adjacent to the wire chafer on the inner side in the tire width direction. In this case, the RF tag may be positioned sandwiched between the nylon chafer and the wire chafer. Thus, the RF tag may be positioned sandwiched between a nylon chafer and another adjacent member on the outer or inner side of the nylon chafer in the tire width direction. In particular, by covering the outer side of the RF tag in the tire width direction with the nylon chafer, the load applied to the RF tag due to impacts and damage from the outside of the tire in the tire width direction can be further reduced. Therefore, the durability of the RF tag can be further improved.

[0042] The RF tag may be positioned sandwiched between the wire chafer and another component adjacent to the wire chafer on the inner or outer side in the tire width direction. This arrangement makes it less likely for the RF tag's position to change during tire deformation. Therefore, the load on the RF tag during tire deformation can be reduced, thereby improving the durability of the RF tag. The other component adjacent to the wire chafer on the inner or outer side in the tire width direction may be, for example, a rubber component such as a rubber chafer. Alternatively, the other component adjacent to the wire chafer on the inner or outer side in the tire width direction may be, for example, a carcass.

[0043] A belt reinforcing layer may be further provided on the radially outer side of the belt. For example, the belt reinforcing layer may consist of a cord made of polyethylene terephthalate wound continuously in a spiral shape in the circumferential direction of the tire. Here, the cord is 6.9 × 10 -2 The belt is treated with adhesive under a tension of N / tex or higher, and its modulus of elasticity at a load of 29.4N measured at 160°C may be 2.5mN / dtex·% or higher. Furthermore, the belt reinforcement layer may be arranged to cover the entire belt or to cover only the ends of the belt. In addition, the winding density per unit width of the belt reinforcement layer may differ at different positions in the width direction. By doing so, road noise and flat spots can be reduced without reducing high-speed durability. [Explanation of symbols]

[0044] 1: Tires, 2: Decorative part, 3: Ridge, 4: Microprotrusions, 5: Edge, 100, 200: Communication equipment

Claims

1. A tire having a decorative portion formed on the sidewall, in which a specific pattern is repeated in the tire radial direction and tire circumferential direction, The aforementioned specific pattern is formed by ridges and minute protrusions having a narrower width than the ridges. A tire characterized in that the ridges and the minute protrusions are arranged alternately and repeatedly in a predetermined direction.

2. The tire according to claim 1, wherein edges are formed between the aforementioned specific patterns.

3. The aforementioned specific pattern is arranged in multiple rows, The tire according to claim 1 or 2, wherein the ridges extend in different directions between adjacent rows.

4. The tire according to claim 1 or 2, wherein the ridge extends in the same direction throughout the entire area of ​​the decorative portion.

5. The tire according to claim 2, wherein the minute protrusions are formed over the entire area of ​​the edge.

6. The tire according to claim 2, wherein the minute protrusions are formed only on a portion of the edge.

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