KR20190015875A - Tire - Google Patents

Abstract

According to an embodiment of the present invention, a tire is coupled to a rim when being mounted on a vehicle to be applied, and comprises: a tread portion having at least one area coming in contact with a road surface when the vehicle is driven; a side wall having an area that is adjacent to the tread portion, and is spaced from a road surface; and a bead unit connected to the side wall to be coupled to the rim, formed to face an external surface formed toward an external side of the tire, an inner surface formed to toward an internal side of the tire, and one surface of the rim between the external surface and the internal surface, and provided with at least one convex portion and an intermediate area provided with a separation space adjacent to the convex portion.

Description

Tire {Tire}

Embodiments of the invention relate to tires.

The vehicles that the users are traveling with are made up of many parts, among which the tires have a great effect on the driving of the vehicle, and can be said to be one of the key components for securing the safety of the user.

Especially, due to the development of industry, the increase of the movement of logistics, the increase of the moving amount due to the increase of the individual workload, and the increase of the family life are increasing the automobile operation.

On the other hand, the tires can maintain the running safety through friction with the road surface. When the running is not controlled according to the driver's intention according to the road surface condition, that is, when the tire is not controlled as desired on the road surface, This can be a problem.

In addition, the braking characteristics of the vehicle vary depending on the contact of the tire with the road surface and the flow of air, drainage characteristics such as rain water, etc., and the braking characteristic control on the vehicle is not easy.

Embodiments of the present invention provide a tire that improves the driving characteristics including the braking characteristics of the tire to improve the stability of the occupant of the vehicle equipped with the tire.

One embodiment of the present invention relates to a tire coupled to a rim mounted on a vehicle and including a tread portion including an area in contact with the road surface during driving of the vehicle, and a region adjacent to the tread portion and spaced apart from the road surface An outer surface formed to be connected to the side wall and connected to the rim and facing the outside of the tire, an inner surface formed to face the inner side of the tire of the tire, and an inner surface formed to face the inner surface of the tire, And a bead portion having an intermediate region formed with one or more projections and an adjacent spaced space formed to face the surface of the tire.

In this embodiment, at least one convex portion of the at least one convex portion may be in contact with the rim.

In this embodiment, the bead portion includes an end portion, and the end portion of the bead portion corresponds to the boundary with the intermediate region of the region of the inner surface of the bead portion, and the convex portion may be formed to correspond to the end portion.

In this embodiment, the convex portion of the bead portion may be formed to extend from the end portion toward the outer surface of the bead portion and have a predetermined length.

In this embodiment, the bead portion may be formed to extend from the end portion to a length corresponding to at least one region of the intermediate region.

In this embodiment, the convex portion of the bead portion may be formed so as to increase the frictional force between the tire and the rim when the vehicle is loaded with the tire.

In this embodiment, the plurality of convex portions are provided, and the plurality of convex portions may be arranged in a direction intersecting the running direction of the vehicle on which the tire is mounted.

In this embodiment, the plurality of convex portions may be provided, and the plurality of convex portions may be arranged along the circumferential direction of the tire.

The plurality of corresponding regions corresponding to the ends of the bead portions of the tire and spaced from each other in the present embodiment, and the convex portions may be formed in each of the plurality of corresponding regions.

Other aspects, features, and advantages will become apparent from the following drawings, claims, and detailed description of the invention.

The tire and the tire manufacturing method according to the present embodiment can improve the stability of the vehicle and the rider.

1 is a front view schematically showing a tire according to an embodiment of the present invention.
Fig. 2 is a perspective view of the part viewed from direction A of Fig.
3 is a cross-sectional view taken along the line III-III in Figs. 1 and 2. Fig.
4 is an enlarged view of K in Fig.
Fig. 5 is a view seen from the direction B in Fig.
Fig. 6 is an enlarged view of a portion of Fig. 5. Fig.
Figure 7 is a schematic perspective view of Figure 4;
8 is a modification of Fig.
Fig. 9 is a view for explaining the inside of the tire of Fig. 1; Fig.
Fig. 10 is a modification of Fig.
11 and 12 are views showing a part of a tire according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention and methods of achieving them will be apparent with reference to the embodiments described in detail below with reference to the drawings. However, the present invention is not limited to the embodiments described below, but may be implemented in various forms.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like or corresponding components throughout the drawings, and a duplicate description thereof will be omitted .

In the following embodiments, the terms first, second, and the like are used for the purpose of distinguishing one element from another element, not the limitative meaning.

In the following examples, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise.

In the following embodiments, terms such as inclusive or possessive are intended to mean that a feature, or element, described in the specification is present, and does not preclude the possibility that one or more other features or elements may be added.

In the drawings, components may be exaggerated or reduced in size for convenience of explanation. For example, the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of explanation, and thus the present invention is not necessarily limited to those shown in the drawings.

In the following embodiments, the x-axis, the y-axis, and the z-axis are not limited to three axes on the orthogonal coordinate system, and can be interpreted in a broad sense including the three axes. For example, the x-axis, y-axis, and z-axis may be orthogonal to each other, but may refer to different directions that are not orthogonal to each other.

If certain embodiments are otherwise feasible, the particular process sequence may be performed differently from the sequence described. For example, two processes that are described in succession may be performed substantially concurrently, and may be performed in the reverse order of the order described.

Fig. 1 is a front view schematically showing a tire according to an embodiment of the present invention, Fig. 2 is a perspective view of a part viewed from direction A in Fig. 1, and Fig. 3 is a cross-sectional view taken along line III- Fig.

FIG. 4 is an enlarged view of FIG. 3, FIG. 5 is a view seen from a direction B of FIG. 4, and FIG. 6 is an enlarged view of a portion of FIG. 4 shows a state in which the tire of Fig. 1 is coupled to the rim.

Referring to FIGS. 1 to 6, the tire 100 of the present embodiment may include a tread portion 110, a sidewall 180, and a bead portion 140. The bead portion 140 may include an outer surface 140OS, an inner surface 140NS, and an intermediate region 140MA.

Referring to FIG. 1, the tire 100 may have a shape extending in a circumferential direction (RT) about a central axis AX. Further, the tire 100 may be coupled with a rim (not shown) on the inner side with respect to the radial direction r from the central axis AX. The configuration combined with the rim (not shown) will be described later with reference to Fig.

The tread portion 110 may include a region facing the road surface during driving after mounting the tire 100 on the vehicle. For example, the tread portion 110 may include an area in contact with the road surface during running of the vehicle.

The tread portion 110 may have one or more patterns, and a plurality of grooves 115 may be formed adjacent to these patterns. The groove 115 may have a shape elongated at least in the first direction. In addition, the groove 115 may include a region extending in a direction intersecting with the first direction.

The number and shape of the grooves 115 can be variously determined depending on the running characteristics of the tire 100 and the use thereof.

The side wall 180 is connected to the tread portion 110. The sidewall 180 may be disposed between the tread portion 110 and the bead portion 140 to be described later and may include a region spaced apart from the road surface when the tire 100 is mounted on the vehicle. The tire 100 can perform the bending motion through the side wall 180.

The sidewalls 180 are formed on both sides of the tread portion 110 of the tire 100. The sidewalls 180 may be made of the same material as the sidewalls 180 of the other side.

As an alternative embodiment, the material of the side wall 180 on one side may differ from the material of the side wall 180 on the other side.

As another alternative embodiment, the modulus may be different by varying the composition of the side wall 180 on one side and the side wall 180 on the other side.

The bead 140 may be formed in an area of the sidewall 180 opposite to the area connected to the tread 110.

The bead portion 140 may be provided with a bead portion 140 for stably coupling the tire 100 with the rim RM.

The bead portion 140 may include an outer surface 140OS, an inner surface 140NS, and an intermediate region 140MA.

The outer surface 140OS of the bead portion 140 is formed to face the outside of the tire 100 and the inner surface 140NS of the bead portion 140 is formed to face the inside of the tire 100 and the bead portion 140 Is formed between the outer surface 140OS of the bead portion 140 and the inner surface 140NS.

Also, the bead portion 140 may have various shapes and may be formed to include, for example, a core region BW and a buffer region BF.

The core region BW of the bead portion 140 may have a rectangular or hexagonal shape of a wire bundle shape in which a wire is coated with a rubber, for example, a steel wire.

The buffer region BF of the bead portion 140 is formed to surround the core region BW and the load on the core region BW can be dispersed and the external impact can be mitigated.

A more specific configuration of the bead portion 140 will be described later with reference to Figs. 4 to 6. Fig.

As an alternative embodiment, the tire 100 may include a body ply 130 at least in an area overlaid with the tread portion 110.

The body ply 130 constitutes the main skeleton of the tire 100 and can support the load received by the tire 100 and absorb the impact of the road surface. As an alternative embodiment, the body ply 130 may include a cord shape.

As an alternative embodiment, the inner liner 160 may be further disposed inside the body ply 130. The inner liner 160 is disposed on the innermost side of the tire 100 to reduce or prevent air leakage.

As an alternative embodiment, the cap ply 120 may be disposed between the body ply 130 and the tread portion 110. The cap ply 120 may be formed of various materials and may have a plurality of cord shapes.

As an alternative embodiment, a belt layer 170 may be further disposed between the cap ply 120 and the body ply 130. The belt layer 170 may mitigate the impact of the tire 100 from the road surface during traveling of the vehicle on which the tire 100 is mounted and may extend the ground surface of the tread portion 110 to improve the grounding property and the running stability .

The belt layer 170 may be formed in various shapes, for example, a plurality of layers.

The bead portion 140 will be described in more detail with reference to FIGS. 4 and 6. FIG.

The bead portion 140 may include an outer surface 140OS, an inner surface 140NS, and an intermediate region 140MA, as described above.

The intermediate region MA of the bead 140 may include a plurality of protrusions 141a and a spacing space 141b adjacent thereto. The middle region 140MA may include an area facing the one side of the rim RM and in contact with the rim RM. The braking characteristic of the tire 100 can be improved by increasing the frictional force with the rim RM through the plurality of convex portions 141a formed in the middle region MA of the bead portion 140. [ The space 141b adjacent to the convex portion 141a may be a space for buffering the load when the convex portion 141a receives a load from the rim RM and the convex portion 141a may receive a load The heat convex portion 141a can be easily returned to its original state and the heat convection portion 141a can be easily discharged.

As an alternative embodiment, at least one of the plurality of convex portions 141a formed in the intermediate region 140MA may be in contact with the rim RM.

The rim RM will be schematically described.

The rim RM is combined with the tire 100 and mounted on the vehicle. The rim RM includes a support RB that supports the tire 100 such as a bead 140 of the tire 100. The support RB includes a bottom support surface RBA and a side support surface RBA, RBb).

The bottom support surface RBA may face the middle region 140MA of the bead portion 140 and may contact at least one region of the middle region 140MA of the bead portion 140. [ For example, at least one of the plurality of convex portions 141a may be in contact with the bottom support surface RBA of the rim RM.

The side support surface RBb is connected to the bottom support surface RBA and may have a bent shape from the bottom support surface RBA. The side support surface RBb can be directed to a region adjacent to the middle region 140MA of one region of the outer surface 140OS of the bead portion 140, that is, the outer surface 140OS of the bead portion 140, It is possible to contact one region of the region adjacent to the middle region 140MA of the region of the outer surface 140OS of the substrate 140. [

As an alternative embodiment, the rim RM may include a connecting portion RC between the side supporting surface RBb and the bottom supporting surface RBA, and the connecting portion RC may have a curved surface.

In another alternative embodiment, the rim RM may have a bend RF at its end to be connected to the side support surface RBb, and the bend RF may effectively couple the tire 100 to the rim RM So as to maintain a stable coupled state. Further, when the tire 100 is separated from the rim RM, the process can be easily performed.

The plurality of convex portions 141a may have various shapes.

The bead portion 140 may have an end 141 of the inner surface 140NS of the bead portion 140.

As an alternative embodiment, the end 141 of the bead 140 may be the boundary of the inner surface 140NS and the middle region 140MA.

The plurality of protrusions 141a and the spacing spaces 141b adjacent to the protrusions 141a may be formed to correspond to the ends 141 of the beads 140. [

The coupling force in the region corresponding to the inner point of the coupling between the bead portion 140 and the rim RM can be improved.

As an alternative embodiment, at least one convex portion of the plurality of convex portions 141a may have a shape elongated in one direction. For example, the convex portions 141a may extend inwardly from the inside of the tire 100, And may extend in a direction from the bottom support surface RBA to the side support surface RBb. For example, the convex portion 141a may be formed so as to extend from the end 141 of the bead portion 140 toward the side support surface RBb.

As an alternative embodiment, the plurality of convex portions or the plurality of convex portions 141a of the plurality of convex portions 141a may have a shape elongated in one direction. For example, the convex portions may be formed in a direction from the inside to the outside of the tire 100, May extend in a direction from the bottom support surface RBA of the support shaft RM toward the side support surface RBb. For example, the convex portion 141a may be formed so as to extend from the end 141 of the bead portion 140 toward the side support surface RBb.

In the alternative embodiments, at least one or a plurality of convex portions or the entirety of the plurality of convex portions 141a may have at least one or a plurality of the plurality of convex portions 141a The convex portion or the whole may have a length and the length may have a length extending from the inner surface 140NS of the bead portion 140 to the outer surface 140OS, for example, a length corresponding to the width of the middle region 140MA have. The convex portion 141a may be formed so as to extend from the end portion 141 of the bead portion 140 to the side support surface RBb via the intermediate region 140MA.

As another alternative embodiment, when at least one or a plurality of convex portions or all of the plurality of convex portions 141a have a shape elongated in one direction, at least one of the plurality of convex portions 141a, And the length may be a length that does not extend from the inner surface 140NS of the bead portion 140 to the outer surface 140OS such as the inner surface 140NS It can have a length reaching the area. A convex portion 141a may be formed so as to extend from the end 141 of the bead portion 140 to one point of the middle region 140MA.

As an alternative embodiment, the plurality of convex portions 141a may be arranged in one direction, and may be arranged in plural in the circumferential direction of the tire 100, that is, along the circumferential direction RT of FIG.

As an example, the plurality of convex portions 141a may be arranged in one direction and may have a predetermined interval in the entire region of the tire 100 along the circumferential direction of the tire 100, that is, along the circumferential direction RT of FIG. 1 And can be arranged in plural.

As another example, the plurality of convex portions 141a may be arranged in one direction, and may be formed in a plurality of arrangement regions of the tire 100 along the circumferential direction of the tire 100, that is, And can be arranged in a plurality of intervals. The plurality of arrangement regions of the tires 100 may be spaced apart from each other.

Referring to FIG. 6, one of the plurality of convex portions 141a is shown.

The convex portion 141a may have a shape similar to a saw tooth. One convex portion 141a may have a width W and a height H. The width W may be greater than the height H. For example, the width W may have a size three to five times greater than the height H. The convex portion 141a stably maintains its position in the bead portion 140 so as to improve frictional force with the rim RM and to reduce or prevent breakage or deformation of the convex portion 141a.

Illustratively, the width W of the convex portion 141a may be 5 to 10 millimeters.

In addition, the height H of the convex portion 141a may be 1 to 3 millimeters.

Figure 7 is a schematic perspective view of Figure 4;

Referring to FIG. 7, a plurality of protrusions 141a and adjacent spacing spaces 141b may be formed to correspond to the ends 141 of the beads 140.

Referring to FIG. 7, the end of the convex portion 141a is shown as being slightly spaced apart from the rim RM, for example, the bottom support surface RBA. This is for convenience of explanation, and the convex portion 141a can be in contact with the bottom support surface RBA as shown in Figs.

Or, as an alternative embodiment, at least the end of the convex portion 141a during running of the vehicle may be in contact with the rim RM. Further, as another alternative embodiment, at least the end of the convex portion 141a may contact the rim RM during braking of the vehicle during running.

At least one convex portion of the plurality of convex portions 141a may have a shape elongated in one direction. For example, the convex portion 141a may have a shape extending from the inside to the outside of the tire 100, And may have a shape extending from the support surface RBA toward the side support surface RBb.

At least one convex portion of the plurality of convex portions 141a is formed so as to have a shape starting from the end portion 141 of the bead portion 140 and extending in the direction toward the side support surface RBb .

As a more specific example, at least one or a plurality of convex portions or the entirety of the plurality of convex portions 141a may have a shape elongated in one direction and may include at least one convex portion 141a, The entire length may have a length and the length may have a length corresponding to the length from the inner surface 140NS of the bead portion 140 to the outer surface 140OS, for example, the width of the middle region 140MA. The convex portion 141a may be formed so as to start from the end portion 141 of the bead portion 140 and correspond to the intermediate region 140MA and reach the side support surface RBb.

The gap 141b adjacent to the convex portion 141a extends from the end portion 141 of the bead portion 140 to the side surface of the side surface RBb, respectively.

The convex portion 141a is elongated to correspond to the width of the intermediate region 140MA so that the frictional force between the tire 100 and the rim RM during braking of the vehicle through the rim 100 The effect of improving the braking force of the tire 100 can be increased.

8 is a modification of Fig.

Referring to FIG. 8, the bead portion 140 'of the tire 100' of the present embodiment includes a plurality of convex portions 141a 'and an adjacent space 141b'. May correspond to the ends 141 'of the beads 140 in the plurality of convex portions 141a' of the bead portion 140 'and the adjacent spacing spaces 141b' adjacent thereto.

Referring to FIG. 8, the end of the convex portion 141a 'is shown as being slightly spaced apart from the rim RM, for example, the bottom support surface RBA. This is for convenience of description, and the convex portion 141a 'can be in contact with the bottom support surface RBA as shown in Figs.

Alternatively, at least the end of the convex portion 141a 'during running of the vehicle may be in contact with the rim RM. Further, as another alternative embodiment, the end of the convex portion 141a 'may contact the rim RM at least during braking of the vehicle during running.

At least one or a plurality of convex portions or the entirety of the plurality of convex portions 141a 'may have a shape elongated in one direction and may be at least one of a plurality of convex portions 141a' The entire body may have a length, and the length may have a length that does not extend from the inner surface 140NS 'of the bead portion 140' to the outer surface 140OS.

For example, the length of at least one of the plurality of convex portions 141a ', or of the plurality of convex portions or the whole thereof may be a value ranging from the inner surface 140NS' to one region of the middle region 140MA '.

For example, at least one or a plurality of convex portions or the entirety of the plurality of convex portions 141a 'may be formed to reach one point of the middle region 140MA' starting from the end portion 141 '.

It is also possible to form the intermediate space 140MA 'in such a manner that the spacing space 141b' adjacent thereto is extended to correspond to the convex portion 141a ', that is, the end portion 141' of the intermediate region 140MA ' May be formed to reach one point. At this time, for example, the cross section of the spacing space 141b 'may have a shape similar to a triangle as shown in FIG. 8, or may be a square, though not shown. In addition, the boundary line of the spacing space 141b 'and the middle area 140MA' may meet in various other forms.

The convex portion 141a 'does not extend so as to correspond to the entire width of the intermediate region 140MA' but is formed so as to correspond to a portion of the width so that the tire 100 'and the rim RM' And the intermediate region 140MA 'of the bead portion 140' maintains stable contact and close contact with the rim RM on the outer side of the tire 100 ', so that the tire 100' The bead portion 140 'and the rim RM can be maintained in a stable state.

The tire of this embodiment may include a tread portion, a sidewall, and a bead portion, and the bead portion may include an outer surface, an inner surface, and an intermediate region. The intermediate region of the bead portion includes at least an area in contact with the rim joining the tire, and a plurality of convex portions are formed to correspond to the intermediate region. Thereby increasing the frictional force between the tire and the rim, thereby improving the braking characteristics of the tire.

Also, as an alternative embodiment, such a convex portion may be formed to start from an inner end portion thereof, thereby enhancing the frictional force in the region corresponding to the inner point when the bead portion and the rim are engaged, thereby effectively increasing the braking force.

Further, as an alternative embodiment, the convex portion may extend in one direction, for example, in a direction extending from the inside to the outside of the tire, and may be orthogonal or at least perpendicular to the running direction of the vehicle through the tire So that the braking speed during running of the vehicle can be improved and the cornering characteristic can be improved.

It is also possible to provide a plurality of such convex portions so that a plurality of arranging directions are aligned with the running direction of the tire to generate sequential and repetitive frictional forces during running of the vehicle to improve the control characteristics of braking and handling at the time of vehicle running .

FIG. 9 is a schematic view for the sake of convenience to explain the inside of the tire of FIG. 1; FIG. Specifically, FIG. 9 may be a view of the entire area of the tire including FIG. 5, and as an alternative embodiment, FIG. 5 may be a view of a portion of FIG.

9, the convex portion 141a is formed along the rim RM to correspond to the end portion 141 of the bead portion 140 of the tire 100, for example, along the circumferential direction RT of FIG. 1 . A plurality of convex portions 141a may be formed along the rim RM to correspond to the ends 141 of the tire 100 along the circumferential direction of Fig. 1, for example. Although not shown, the convex portion 141a may have a length orthogonal to or intersecting with the drawing, as described above.

A convex portion 141a is formed on the basis of the circumferential direction of the tire 100 to improve a uniform frictional force between the tire 100 and the rim RM when traveling.

Fig. 10 is a modification of Fig.

10, convex portions 241a are formed only in a plurality of corresponding areas RA1, RA2, RA3, and RA4 corresponding to the ends 241 of the beads 240 of the tire 200 .

That is, the tire 200 may include a plurality of corresponding regions RA1, RA2, RA3, RA4 corresponding to the ends 241 of the bead portion 240 and spaced from each other.

1 along the rim RM so as to correspond to the end portion 241 of the tire 200 in a region corresponding to a plurality of corresponding regions RA1, RA2, RA3 and RA4 spaced from each other, The convex portion 241a may be formed along the surface of the substrate W1.

The convex portion 241a may be formed in a plurality of predetermined regions with respect to the circumferential direction of the tire 200. [ A plurality of convex portions 241a may be formed in a plurality of corresponding regions RA1, RA2, RA3, and RA4, which are spaced apart from each other with equal spacing with respect to the circumferential direction of the tire 200, for example.

Further, as another example, the plurality of corresponding regions RA1, RA2, RA3, RA4 may be spaced apart from each other at a different interval, and the number of corresponding regions may be varied as an alternative embodiment. For example, two, three, or five or more. As another example, it is also possible to have one corresponding region.

It is possible to precisely handle the tire 200 when the vehicle is traveling by forming the convex portion 241a in one region or a plurality of mutually spaced regions which are not the entire traveling direction of the tire 200. [

11 and 12 are views showing a part of a tire according to another embodiment of the present invention.

Referring to FIG. 11, the convex portion 341a provided in the bead portion of the tire of the present embodiment may have a surface-shaped end portion which is reduced in width toward the rim RM and in contact with the rim RM. Accordingly, it is possible to improve the braking performance during running of the tire while reducing damage or deformation of the convex portion 341a.

Referring to FIG. 12, the convex portion 441a provided in the bead portion of the tire of the present embodiment may include at least one curved surface region in the direction toward the rim RM. The friction applied to the convex portion 441a by the contact of the convex portion 441a and the rim RM during the braking operation through the tire causes the load applied to the convex portion 441a to be dispersed to cause breakage or deformation of the convex portion 441a The braking characteristic can be improved during running of the tire.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art . Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

The specific implementations described in the embodiments are, by way of example, not intended to limit the scope of the embodiments in any way. Also, unless explicitly mentioned, such as "essential "," importantly ", etc., it may not be a necessary component for application of the present invention.

The use of the terms "above" and similar indication words in the description of the embodiments (in particular in the claims) may refer to both singular and plural. In addition, in the embodiment, when a range is described, it includes the invention to which the individual values belonging to the above range are applied (if there is no description to the contrary), the individual values constituting the above range are described in the detailed description . Finally, the steps may be performed in an appropriate order, unless explicitly stated or contrary to the description of the steps constituting the method according to the embodiment. The embodiments are not necessarily limited to the description order of the steps. The use of all examples or exemplary terms (e.g., etc.) in the examples is for the purpose of describing the embodiments in detail and is not intended to be limited by the scope of the claims, It is not. It will also be appreciated by those skilled in the art that various modifications, combinations, and alterations may be made depending on design criteria and factors within the scope of the appended claims or equivalents thereof.

100, 200: Tire
110: Tread portion
180: sidewall
120: cap fly
130: Body fly
140, 240:
141, 141 ', 241: end
141a, 141a ', 241a:
141b, 141b ': spacing space
141NS, 141NS ': inner surface
141OS, 141OS ': outer surface
141MA, 141MA ': middle area
RM: rim

Claims (9)

The present invention relates to a tire applied to a vehicle when mounted on a vehicle,
A tread portion including at least an area in contact with the road surface during driving of the vehicle;
A sidewall adjacent the tread portion and including a region spaced from the road surface; And
A sidewall formed to be coupled to the rim,
An inner surface formed so as to face the inner side of the tire and an outer surface formed to face the outer side of the tire, and an inner surface formed to face one side of the rim between the outer surface and the inner surface, And a bead portion having an intermediate region provided therein. The method according to claim 1,
Wherein at least one of the at least one convex portion is in contact with the rim. The method according to claim 1,
The bead portion including an end,
The end portion of the bead portion corresponds to the boundary with the intermediate region of the region of the inner surface of the bead portion,
And the convex portion is formed to correspond to the end portion. The method according to claim 1,
And the convex portion of the bead portion is formed to extend from the end portion toward the outer surface of the bead portion to have a predetermined length. 5. The method of claim 4,
And the bead portion is elongated to correspond to at least one region of the intermediate region from the end portion. The method according to claim 1,
And the convex portion of the bead portion is formed to increase a frictional force between the tire and the rim when the vehicle on which the tire is mounted is running. The method according to claim 1,
The plurality of convex portions are provided,
Wherein the plurality of convex portions are arranged in a direction intersecting the running direction of the vehicle on which the tire is mounted. The method according to claim 1,
The plurality of convex portions are provided,
And the plurality of convex portions are arranged along the circumferential direction of the tire. The method according to claim 1,
A plurality of corresponding regions corresponding to ends of the bead portions of the tire and spaced from each other,
And the convex portion is formed in each of the plurality of corresponding regions.

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