CN219338670U - Tire with enhanced sidewall blackness and tire vulcanization mold - Google Patents

Abstract

The utility model relates to the field of tires, in particular to a tire and a tire vulcanizing mold for reinforcing the blackness of a sidewall, wherein the tire comprises a marking area arranged on the sidewall, pattern filling is arranged in the marking area, the pattern filling is formed by regularly arranging a plurality of identical pattern units, each pattern unit comprises a first element extending in a first direction, a second element extending in a second direction, a third element extending in a third direction and a fourth element extending in a fourth direction, the plurality of first elements are arranged side by side to form a first area, the plurality of second elements are arranged side by side to form a second area, the plurality of third elements are arranged side by side to form a third area, and the plurality of fourth elements are arranged side by side to form a fourth area. According to the utility model, the appearance of the pattern units is optimized, so that the pattern units are inlaid more tightly, the area of the white area is reduced, the contrast between the pattern units and the sidewalls is further improved, and the visual impact is improved.

Description

Tire with enhanced sidewall blackness and tire vulcanization mold

Technical Field

The utility model relates to the field of tires, in particular to a tire with enhanced sidewall blackness and a tire vulcanization mold.

Background

Tires are the only ground engaging components of an automobile that provide the driving, steering, braking forces required for the movement of the automobile. Because the tire uses the special performance of road conditions and scenes, carbon black needs to be added, and the surface presented by the tire is mainly black. The surface of the tire sidewall typically contains patterns, font identification and portions of the regulatory requirements that convey information to the purchaser or user about the brand, type, size, performance, etc. of the tire, and these information are also typically black, and therefore do not have a high contrast on the sidewall, i.e., insufficient visual impact, and are difficult to clearly observe.

In order to improve visual contrast of a sidewall part, chinese patent application (CN 108407347B) discloses a tire and a tire mold with a novel sidewall pattern, wherein the tire comprises a carcass, a side portion (i.e., sidewall) of the carcass has a marking area, and a plurality of pattern units are arranged in the marking area; the pattern unit is arranged protruding out of the tire body, and comprises a central part and a plurality of extending parts, wherein the extending parts are circumferentially distributed on the side parts of the central part, and the central part is higher than the extending parts. Therefore, the pattern unit has an overall concave-convex visual effect, light rays entering the pattern unit are reflected back and forth between the side walls, the intensity of the light rays is further attenuated, and finally only a small amount of light rays can be reflected outside the pattern unit, so that the pattern unit is darker than other positions of the side walls, and visual contrast is improved.

However, in the embodiment provided in the above patent, it is found that, although the extension portions of the pattern units are inserted between the extension portions of the adjacent pattern units to reduce the white-keeping area between the pattern units, the area of the white-keeping area is still relatively large, and the white-keeping area is located at about 20% of the area of each pattern unit, which is the surface of the sidewall, so that the black color with relatively low saturation is present at these positions, and further, the white-keeping area with relatively large area affects the visual contrast of the whole pattern unit, so that the contrast of the pattern unit is not as high as expected from the actual tire, and still there is still a possibility of further improvement.

Disclosure of Invention

In order to solve the problems, the utility model aims to provide a tire and a tire vulcanizing mold for reinforcing the blackness of a tire sidewall, which enable the pattern units to be embedded more tightly by optimizing the appearance of the pattern units, reduce the area of a white area, further improve the contrast between the pattern units and the tire sidewall and improve the visual impact.

For the purpose of the utility model, the following technical scheme is adopted for implementation:

in a first aspect, an embodiment of the present utility model provides a tire for reinforcing blackness of a sidewall, including a marking area provided in the sidewall, in which a pattern filling is provided, the pattern filling being formed by a plurality of identical pattern units regularly arranged, the pattern units protruding from a reference surface of the sidewall and having sidewalls forming an angle with the reference surface, the sidewalls being configured such that light is reflected between the sidewalls to deepen a color displayed in the marking area, the pattern units including first elements extending in a first direction, second elements extending in a second direction, third elements extending in a third direction, and fourth elements extending in a fourth direction, the plurality of first elements being arranged side by side to form a first area, the plurality of second elements being arranged side by side to form a second area, the plurality of third elements being arranged side by side to form a third area, the first area and the second area are arranged at the upper part of the pattern unit, the first area and the second area are distributed and connected with each other left and right, the third area is arranged at the middle part of the pattern unit, one side of the upper part of the third area is connected with the first area and the second area, the fourth area is arranged at the lower part of the pattern unit, one side of the lower part of the third area is connected with the fourth area, when the pattern units are arranged, the upper side of the first area is parallel and adjacent to the lower side of the third area of the upper left pattern unit, the upper side of the second area is parallel and adjacent to the lower side of the fourth area of the upper right pattern unit, the lower side of the second area is parallel and adjacent to the left side of the third area of the upper right pattern unit, and the right side of the third area is parallel and adjacent to the left side of the fourth area of the upper right pattern unit. Therefore, the first area, the second area, the third area and the fourth area in the pattern units are provided with a specific arrangement mode, so that the pattern units can be distributed tightly when being arranged, gaps among the boundaries of the pattern units are reduced, the area of the blank area among the pattern units is reduced, meanwhile, in each area, corresponding elements also have a specific extending direction and a specific arrangement direction, therefore, the inside of the pattern units also have relatively smaller blank areas, the pattern filling has smaller blank areas, the area ratio of the blank areas is relatively smaller, the contrast between the pattern filling and the sidewalls is improved, and the visual impact is stronger.

In one embodiment, the first direction is 45 ° from the second direction, the first direction is 135 ° from the third direction, and the first direction and the fourth direction are parallel to each other. Therefore, the extending directions of the corresponding elements in each region are greatly different, so that light is difficult to reflect from the pattern units, the color depth of the pattern units is further enhanced, and the visual effect is further improved.

In one embodiment, the first element, the second element, the third element, and the fourth element all extend in a straight line. Thus, the elements have a single extending direction in each region, and each position in the visual region appears in the same color, so that the visual uniformity of the region as a whole is improved, and the visual effect is improved.

In one embodiment, the gaps between the first element boundaries, the second element boundaries, the third element boundaries, the fourth element boundaries, and the pattern units are maintained between 0.05-0.5 mm. Therefore, gaps among elements in the pattern units become small enough, so that the area of a blank area inside the pattern units is reduced, meanwhile, the gaps among the pattern units become small enough, the pattern units can be inlaid more tightly, and in addition, the gaps are convenient for forming boundary lines and processing and manufacturing.

In one embodiment, the gaps between the first element boundaries are equal, the gaps between the second element boundaries are equal, the gaps between the third element boundaries are equal, and the gaps between the fourth element boundaries are equal. Thus, the same elements are arranged at equal intervals, so that the region formed by the elements is better in integrity, and the uniformity of colors in the region is better in appearance, thereby contributing to improvement of visual effect.

In one embodiment, the gaps between the first element boundaries, the second element boundaries, and the fourth element boundaries are equal, and the gap between the third element boundaries is greater than the gap between the first element boundaries.

In one embodiment, the third region includes a third region a and a third region B, the third region a being connected between the first region and the fourth region, and the third element in the third region a being continuous with the first element in the first region and the fourth element in the fourth region, the third region B being located at a right lower side of the third region a and being offset from the third region a.

In one embodiment, a white-reserving area exists inside the pattern units and between the adjacent pattern units, and the area of the white-reserving area occupies 6-12% of the area of the pattern units. Thus, the duty ratio of the blank area becomes smaller in the pattern filling, and the color of the pattern filling can be deepened, thereby improving the visual impact.

In one embodiment, the first element and the fourth element are both first strip-shaped protrusions protruding outwards from the sidewall reference surface, the second element is a second strip-shaped protrusion protruding outwards from the sidewall reference surface, the third element is a third strip-shaped protrusion protruding outwards from the sidewall reference surface, the heights of the first strip-shaped protrusion, the second strip-shaped protrusion and the third strip-shaped protrusion are the same, and the width of the first strip-shaped protrusion is less than or equal to the width of the second strip-shaped protrusion and less than or equal to the third strip-shaped protrusion;

the heights of the first strip-shaped bulge, the second strip-shaped bulge and the third strip-shaped bulge are 0.2-1 mm, the widths of the first strip-shaped bulge, the second strip-shaped bulge and the third strip-shaped bulge are 0.1-0.5 mm, and the included angles between the side walls of the first strip-shaped bulge, the second strip-shaped bulge and the third strip-shaped bulge and the reference surface are 10-35 degrees; the cross section of the strip-shaped bulge is triangular or trapezoidal. The shapes of the strip-shaped bulges are limited by the parameters, so that light rays can be reflected back and forth between the side walls of the pattern units, and finally the light ray intensity is weakened, so that the light rays reflected from the pattern units are reduced, and the pattern filling is blacker.

In a second aspect, an embodiment of the present utility model provides a tire vulcanizing mold for manufacturing the tire with enhanced sidewall blackness, wherein a reverse pattern filling is provided on an inner surface of the mold at a position corresponding to a marking area of a sidewall, and a concave-convex direction of the reverse pattern filling is opposite to the pattern filling, so that the pattern filling is formed in the marking area when the tire is vulcanized.

Compared with the prior art, the embodiment of the utility model has at least the following beneficial effects: the arrangement mode of the elements in the pattern units ensures that the pattern units are provided with smaller white areas, and the arrangement mode among the pattern units ensures that the gaps among the pattern units are reduced, and the adjacent pattern units are arranged more tightly, so that the white areas among the pattern units are reduced, the pattern filling is blacker on the whole, the contrast between the marking area and the rest positions of the sidewall is improved, and the visual impact is enhanced. In addition, the appearance of the pattern unit that this embodiment provided can effectively solve the tire side wall lacked that the filling position caused simultaneously. The strip-shaped bulges in the pattern units have the characteristics of continuity and bending, the rigidity of the strip-shaped bulges can be improved, the stress concentration is avoided, the breakage is avoided, and in addition, the bending structure can buffer and disperse the stress.

Drawings

Fig. 1 is a side view of a tire provided in an embodiment of the present utility model.

Fig. 2 is a schematic diagram of pattern filling formed by mutually arranging a plurality of pattern units in an embodiment of the utility model.

FIG. 3 is a schematic diagram of a single pattern unit in an embodiment of the utility model.

Fig. 4 is a cross-sectional view at A-A in fig. 3.

Fig. 5 is a cross-sectional view at B-B in fig. 3.

Fig. 6 is a cross-sectional view at C-C in fig. 3.

Fig. 7 is a schematic diagram of a white area between pattern units and inside the pattern units in an embodiment of the present utility model.

Detailed Description

Fig. 1 shows a side view of a tire provided in an embodiment of the present utility model, and referring to fig. 1, a tire 100 for a vehicle includes a sidewall 110 located on an axial side of the tire 100, the sidewall 110 having a ring shape, and a plurality of identification features typically provided on an outer surface, wherein the identification features may be one or more of a number, a letter, a logo, a name of a manufacturer's brand, a tire size, a tire rotation direction, a manufacturing number, and the like. In this embodiment, the identification feature is a combination of numbers and letters, forming an appearance of "12r22.5mz1".

The identification features are typically added by transferring the relief structure on the vulcanization mold to the surface of the sidewall 110 during vulcanization of the tire, and therefore these transferred identification features are typically of the same color as the surface of the sidewall 110 and can visually confirm the relevant information by the relief relative to the surface of the sidewall 110.

Typically, the sidewall 110 is generally one or a combination of black and gray, and accordingly the identification feature is also one or a combination of black and gray, so that there is a lack of contrast between the identification feature and the color of the surface of the sidewall 110, i.e., a relatively focused attention is required from the producer, seller, purchaser and user of the tire to clearly and completely identify the information recorded in the identification area. In summary, in the prior art, the visual impact of the identification feature is not high.

In this embodiment, the area occupied by these identification features on the sidewall 110 is defined as an identification area, and other areas of the sidewall 110 where no identification features are provided are defined as non-identification areas, where the surface of the sidewall 110 is generally relatively smooth, precisely where there is not too much streak except for the lines necessary for the surface of the sidewall 110 (which typically extend in the circumferential direction of the tire to form a ring shape), and is relatively flat as a whole.

In the present embodiment, the boundary of the identification feature is defined by the outline of the identification feature itself, and the pattern filling 200 is provided inside the boundary, and these pattern filling 200 have the characteristic of being rugged (in fig. 1, being rugged in the in-out direction of the paper) on the reference surface of the sidewall 110 (the imaginary surface of the sidewall when the pattern filling 200 is not present), that is, the pattern filling 200 is rugged. Specifically, the pattern filling 200 includes stripe-shaped protrusions protruding outward from the reference surface, which extend along a certain trajectory in the reference surface to form a pattern, and which have sidewalls disposed obliquely, specifically, forming an acute angle with the reference surface, for example, an angle of 10 to 30 °.

The purpose of the pattern filling 200 is to: when external light (such as sunlight and lamplight) is incident into the pattern filling 200, reflection is generated on the side wall of the strip-shaped bulge, and most of the reflected light can continuously shoot into the pattern filling 200 due to the design of the inclination angle of the side wall, the intensity of the light is gradually weakened through the continuous reflection process, and finally only a small amount of light can leave the pattern filling 200, so that the color of the identification area is darker relative to the non-identification area for an observer, namely, the contrast between the identification area and the non-identification area is improved, and the visual impact is improved.

As shown in fig. 2, the pattern filling 200 is generally formed by arranging a plurality of identical and independent pattern units 210 according to a certain rule, and in general, in order to ensure that the pattern filling 200 has a better visual effect, the pattern units 210 need to be arranged more closely, i.e. the pattern units 210 have a higher distribution density, for example, at least one pattern unit 210 exists in every square millimeter, so as to ensure that the pattern filling 200 can show a good visual effect everywhere.

In addition, a certain gap (also referred to as a blank area) needs to exist between the boundaries of adjacent pattern units 210 in order to facilitate the processing and forming of the pattern units 210. More precisely, the processing of the vulcanization mould above is facilitated. Since the vulcanization mold needs to be pre-set with reverse pattern filling in the opposite direction to the pattern filling relief in order to process the corresponding identification feature on the sidewall 110 during vulcanization, once there is no gap between the pattern units 210, the processing of these reverse pattern filling becomes difficult, and since the rubber material will be displaced slightly during vulcanization, the shape of the pattern units 210 formed by processing will become uncontrollable without the presence of the above gap.

It should be noted here that the gaps between the pattern units 210 should not be too large, otherwise a relatively flat area with a large area will be formed at the junction of adjacent pattern units 210, and the presence of this area will enable the incident light to be reflected directly out of the pattern units 210, thereby impairing the visual impact of the identification feature.

In the present embodiment, the gap between the pattern units 210 is 0.02mm, but in practice, as long as the gap is between 0.005-0.05 mm, the area of the blank area is reduced under the condition that the appearance of the pattern units 210 is convenient for processing and manufacturing, so that the identification feature exhibits a higher visual effect.

FIG. 3 is a schematic diagram of a single pattern unit in an embodiment of the utility model. Referring to fig. 3, the pattern unit 210 in the present embodiment includes a first element 2111 extending in a first direction, a second element 2121 extending in a second direction, a third element 2131 extending in a third direction, and a fourth element 2141 extending in a fourth direction, the plurality of first elements 2111 are arranged side by side to form a first region 211, the plurality of second elements 2121 are arranged side by side to form a second region 212, the plurality of third elements 2131 are arranged side by side to form a third region 213, and the plurality of fourth elements 2141 are arranged side by side to form a fourth region 214, wherein the first region 211 and the second region 212 are located at an upper portion of the pattern unit 210, the first region 211 and the second region 212 are both substantially triangular, and the first region 211 and the second region 212 are connected to each other in a left-right distribution. The third region 213 is located at the middle of the pattern unit 210, the third region 213 substantially includes an upper rectangle and a lower parallelogram, and an upper right side of the third region 213 is connected to lower portions of the first and second regions 211 and 212. The fourth region 214 is substantially parallelogram-shaped, the fourth region 214 is located at the lower portion of the pattern unit 210, and a lower side of the third region 213 is connected to an upper side of the fourth region 214.

In this embodiment, the first direction is 45 ° from the second direction, the first direction is 135 ° from the third direction, and the first direction and the fourth direction are parallel to each other. More precisely, as shown in fig. 3, the first element 2111 extends in the up-down direction, and the second element 2121 extends from the upper left to the lower right, so that an angle of 45 ° is formed between the first element 2111 and the second element 2121. The third element extends from the lower left to the upper right, whereby 135 ° (which may be considered as 45 °) is formed between the third element 2131 and the first element 2111, and 90 ° -is formed between the third element 2131 and the second element 2121. The fourth element 2141 extends in the up-down direction so as to be parallel to the first element 2111. Therefore, the extending directions of the corresponding elements in each region are greatly different, so that light is difficult to reflect from the pattern units, the color depth of the pattern units is further enhanced, and the visual effect is further improved.

In this embodiment, each of the first element 2111, the second element 2121, the third element 2131, and the fourth element 2141 extends straight. Thus, the elements have a single extending direction in each region, and each position in the visual region appears in the same color, so that the visual uniformity of the region as a whole is improved, and the visual effect is improved.

The gaps between the boundaries of the first elements 2111, the gaps between the boundaries of the second elements 2121, the gaps between the boundaries of the third elements 2131, the gaps between the boundaries of the fourth elements 2141, and the gaps between the pattern units 210 are all maintained between 0.05 to 0.5 mm. Therefore, gaps among elements in the pattern units become small enough, so that the area of a blank area inside the pattern units is reduced, meanwhile, the gaps among the pattern units become small enough, the pattern units can be inlaid more tightly, and in addition, the gaps are convenient for forming boundary lines and processing and manufacturing.

Further, the gaps between the boundaries of the first element 2111 are equal, the gaps between the boundaries of the second element 2121 are equal, the gaps between the boundaries of the third element 2131 are equal, and the gaps between the boundaries of the fourth element 2141 are equal. Thus, the same elements are arranged at equal intervals, so that the region formed by the elements is better in integrity, and the uniformity of colors in the region is better in appearance, thereby contributing to improvement of visual effect.

Specifically, in this embodiment, the gaps between the boundaries of the first elements 2111, the gaps between the boundaries of the second elements 2121, and the gaps between the boundaries of the fourth elements 2141 are all 0.02mm, the gaps between the boundaries of the third elements 2131 are larger than the gaps between the boundaries of the first elements 2111, and the gaps between the boundaries of the third elements 2131 are 0.03mm.

As shown in fig. 3, the third region 213 includes a third region a213a and a third region B213B, the third region a213a is connected between the first region 211 and the fourth region 214, and a third element 2131 in the third region a213a is continuous with a first element 2111 in the first region 211 and a fourth element 2141 in the fourth region 214, and the third region B213B is located right below the third region a213a and is offset from the third region a213 a.

Fig. 2 is a schematic diagram of pattern filling formed by mutually arranging a plurality of pattern units in an embodiment of the utility model. As shown in fig. 2, when the pattern units 210 are aligned with each other in both the horizontal direction and the vertical direction, the upper side of the first region 211 is parallel to and immediately adjacent to the lower side of the third region 213 of the upper left pattern unit, the upper side of the second region 212 is parallel to and immediately adjacent to the lower side of the fourth region 214 of the upper right pattern unit, the lower side of the second region 212 is parallel to and immediately adjacent to the left side of the third region 213 of the lower right pattern unit, the right side of the third region 213 is parallel to and immediately adjacent to the left side of the fourth region 214 of the lower right pattern unit, the lower side of the fourth region 214 is parallel to and immediately adjacent to the upper side of the third region 211 of the lower right pattern unit.

Therefore, the first area, the second area, the third area and the fourth area in the pattern units are provided with a specific arrangement mode, so that the pattern units can be distributed tightly when being arranged, gaps among the boundaries of the pattern units are reduced, the area of the blank area among the pattern units is reduced, meanwhile, in each area, corresponding elements also have a specific extending direction and a specific arrangement direction, therefore, the inside of the pattern units also have relatively smaller blank areas, the pattern filling has smaller blank areas, the area ratio of the blank areas is relatively smaller, the contrast between the pattern filling and the sidewalls is improved, and the visual impact is stronger.

Fig. 7 shows a schematic diagram of the inter-pattern-unit and intra-pattern-unit white areas. The ratio of the area of the blank area to the pattern unit was found to be 8.4% by measurement. It should be noted that, by reasonably changing the gaps between the pattern units 210 and the shapes of the pattern units 210, the ratio of the areas may be selected between 6% and 12%.

In the present embodiment, the first element 2111 and the fourth element 2141 are both first strip-shaped protrusions protruding outward from the sidewall reference surface, the second element 2121 is a second strip-shaped protrusion protruding outward from the sidewall reference surface, and the third element 2131 is a third strip-shaped protrusion protruding outward from the sidewall reference surface. The heights of the first strip-shaped bulge, the second strip-shaped bulge and the third strip-shaped bulge are the same, the width of the first strip-shaped bulge is less than or equal to 0.2-1 mm, the width of the second strip-shaped bulge is less than or equal to 0.1-0.5 mm, and the included angles between the side walls of the first strip-shaped bulge, the second strip-shaped bulge and the third strip-shaped bulge and the reference surface are 10-35 degrees; the cross section of the strip-shaped bulge is triangular or trapezoidal.

Fig. 4 shows a cross-section at A-A in fig. 3, see fig. 4, in which the first strip-shaped protrusion has a height h1 of 0.24mm, a width w1 of 0.22mm, and an angle θ1 between the side wall and the reference plane of 25 °.

Fig. 5 shows a cross-sectional view at B-B in fig. 3, referring to fig. 5, in the present embodiment, the second strip-shaped protrusion has a height h2 of 0.24mm, a width w2 of 0.28mm, and an angle θ2 between the sidewall and the reference plane of 31 °.

Fig. 6 shows a cross-sectional view at C-C in fig. 3, referring to fig. 6, in the present embodiment, the third strip-shaped protrusion has a height h3 of 0.24mm, a width w3 of 0.31mm, and an angle θ3 between the sidewall and the reference plane of 33 °.

The shapes of the strip-shaped bulges are limited by the parameters, so that light rays can be reflected back and forth between the side walls of the pattern units, and finally the light ray intensity is weakened, so that the light rays reflected from the pattern units are reduced, and the pattern filling is blacker.

The embodiment of the utility model also provides a tire vulcanizing mold for manufacturing the tire, wherein the position on the inner surface of the mold, which corresponds to the identification area of the sidewall, is provided with reverse pattern filling, and the concave-convex direction of the reverse pattern filling is opposite to that of the pattern filling, so that the pattern filling is formed in the identification area when the tire is vulcanized.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art. The generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A tire for reinforcing the blackness of a sidewall is characterized by comprising a marking area arranged on the sidewall, wherein pattern filling is arranged in the marking area and is formed by regularly arranging a plurality of identical pattern units, the pattern units protrude out of a reference surface of the sidewall and are provided with side walls forming included angles with the reference surface, the side walls are configured to reflect light rays between the side walls so as to deepen the color displayed by the marking area,

the pattern unit comprises a first element extending in a first direction, a second element extending in a second direction, a third element extending in a third direction and a fourth element extending in a fourth direction, wherein a plurality of the first elements are arranged side by side to form a first area, a plurality of the second elements are arranged side by side to form a second area, a plurality of the third elements are arranged side by side to form a third area, a plurality of the fourth elements are arranged side by side to form a fourth area, wherein the first area and the second area are positioned at the upper part of the pattern unit, the first area and the second area are connected with each other in a left-right distribution, the third area is positioned at the middle part of the pattern unit, one side of the upper part of the third area is connected with the first area and the second area, the fourth area is positioned at the lower part of the pattern unit, one side of the lower part of the third area is connected with the fourth area,

when the pattern units are arranged, the upper side of the first area is parallel to and adjacent to the lower side of the third area of the upper left pattern unit, the upper side of the second area is parallel to and adjacent to the lower side of the fourth area of the upper right pattern unit, the lower side of the second area is parallel to and adjacent to the left side of the third area of the right pattern unit, and the right side of the third area is parallel to and adjacent to the left side of the fourth area of the right pattern unit.

2. The enhanced sidewall blackness tire of claim 1 wherein the first direction is 45 ° from the second direction, the first direction is 135 ° from the third direction, and the first direction and the fourth direction are parallel to each other.

3. The enhanced sidewall black tire of claim 1, wherein the first element, the second element, the third element, and the fourth element each extend in a straight line.

4. The enhanced sidewall blackness tire of claim 1 wherein the gaps between the first element boundaries, the second element boundaries, the third element boundaries, the fourth element boundaries, and the pattern units are maintained between 0.05mm and 0.5 mm.

5. The enhanced sidewall blackness tire of claim 4 wherein the gaps between the first element boundaries are equal, the gaps between the second element boundaries are equal, the gaps between the third element boundaries are equal, and the gaps between the fourth element boundaries are equal.

6. The enhanced sidewall black tire of claim 5, wherein the gap between the first element boundaries, the gap between the second element boundaries, and the gap between the fourth element boundaries are equal, and the gap between the third element boundaries is greater than the gap between the first element boundaries.

7. The enhanced sidewall blackness tire of claim 1 wherein the third region includes a third region a and a third region B, the third region a being connected between the first region and the fourth region, and the third element in the third region a being continuous with the first element in the first region and the fourth element in the fourth region, the third region B being located right below the third region a and being offset from the third region a.

8. The tire of claim 1, wherein a white area is present within the pattern elements and between adjacent pattern elements, the white area occupying 6-12% of the pattern element area.

9. The tire of claim 1, wherein the first element and the fourth element are each a first strip-shaped protrusion protruding outward from the sidewall reference surface, the second element is a second strip-shaped protrusion protruding outward from the sidewall reference surface, the third element is a third strip-shaped protrusion protruding outward from the sidewall reference surface, the first strip-shaped protrusion, the second strip-shaped protrusion, and the third strip-shaped protrusion are each the same in height, and the first strip-shaped protrusion has a width equal to or less than the second strip-shaped protrusion and equal to or less than the third strip-shaped protrusion;

the heights of the first strip-shaped bulge, the second strip-shaped bulge and the third strip-shaped bulge are 0.2-1 mm, the widths of the first strip-shaped bulge, the second strip-shaped bulge and the third strip-shaped bulge are 0.1-0.5 mm, and the included angles between the side walls of the first strip-shaped bulge, the second strip-shaped bulge and the third strip-shaped bulge and the reference surface are 10-35 degrees; the cross section of the strip-shaped bulge is triangular or trapezoidal.

10. A tyre curing mould for manufacturing a tyre with enhanced sidewall blackness according to any one of the preceding claims 1-9, characterized in that the mould inner surface is provided with a reverse pattern filling at a position corresponding to the identification area of the sidewall, the direction of the relief of the reverse pattern filling being opposite to the pattern filling, so that the pattern filling is formed in the identification area when the tyre is cured.

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