KR101869942B1

KR101869942B1 - Pneumatic tire

Info

Publication number: KR101869942B1
Application number: KR1020160176832A
Authority: KR
Inventors: 황민석
Original assignee: 넥센타이어 주식회사
Priority date: 2016-12-22
Filing date: 2016-12-22
Publication date: 2018-06-21

Abstract

One embodiment of the present invention provides a tread having a tread portion in contact with a ground surface; A bead portion mounted on the rim; A side wall portion connecting the tread portion and the bead portion; And a protrusion having a first height from an outer surface of the sidewall portion and projecting to the outside and disposed along a circumferential direction of the tire, wherein the protrusion has an upper surface having the first height, Wherein the upper surface and the side surface of the protrusion include at least one of a luminous material, a fluorescent material, and a light emitting material.

Description

[0001] Pneumatic tire [0002]

Embodiments of the present invention relate to pneumatic tires.

The tires are designed to maximize the performance of riding comfort, noise, maneuverability, and drainability for the purpose. In order to maintain the basic performance of the tire such as dry traction performance, wet traction performance, noise performance, etc., the tread has a plurality of longitudinal grooves formed in the circumferential direction and a plurality of transverse grooves formed in the width direction, A plurality of tread blocks are formed by the grooves.

Generally, tires contain carbon black and have a color close to black, so it is difficult for pedestrians to recognize the vehicle when the vehicle is standing at a certain position at night or traveling without lighting.

Embodiments of the present invention provide a pneumatic tire including a luminous or luminescent material to solve the above-mentioned problems.

In one embodiment of the present invention, the upper surface and the side surface of the protrusion may further include a waterproof material.

In one embodiment of the present invention, the upper surface of the protrusion may comprise a first irregular surface.

In one embodiment of the present invention, the first irregular surface has a first inclined surface varying from the first height to a second height higher than the first height, and a second inclined surface connected to the first inclined surface, The second inclined surface varying in height by one can be repeatedly arranged.

In one embodiment of the present invention, the first irregular surface may be repeatedly disposed along the circumferential direction of the tire, the first inclined surface and the second inclined surface.

In an embodiment of the present invention, the side surface of the protrusion may be a second uneven surface.

In one embodiment of the present invention, the second uneven surface is connected to a third inclined surface whose height changes from the side surface to a third height and a third inclined surface whose height changes from the third height to the side surface The fourth inclined surface can be repeatedly arranged.

In an embodiment of the present invention, the second irregular surface may be repeatedly disposed along the width direction of the tire, the third inclined surface and the fourth inclined surface.

Another embodiment of the present invention provides a tread comprising: a tread having a region in contact with a ground; A bead portion mounted on the rim; A side wall portion connecting the tread portion and the bead portion; And a second inclined surface disposed on an outer surface of the sidewall portion and having a height varying from the outer surface to a first height and a second inclined surface connected to the first inclined surface and varying in height from the first height to the outer surface, Wherein the concavities and convexities include at least one of a luminous material, a fluorescent material and a light emitting material.

In one embodiment of the present invention, the uneven portion may further include a waterproof material.

In one embodiment of the present invention, the first inclined surface and the second inclined surface may be repeatedly arranged along the circumferential direction of the tire.

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

The pneumatic tire according to embodiments of the present invention includes at least one of a luminous material, a fluorescent material, and a light emitting material in a protruding portion disposed in a side wall portion so that a vehicle including a pneumatic tire at night can be easily recognized can do. Further, the pneumatic tire can more easily recognize the tire to be emitted in various directions as well as in the side direction of the vehicle by forming the upper surface or the side surface of the projecting portion as an uneven surface.

1 is a perspective view schematically showing a pneumatic tire according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view schematically showing the pneumatic tire of Fig. 1. Fig. 3 is an enlarged view of the area A in Fig.
3 is an enlarged view of the area A in Fig.
Fig. 4 is an enlarged view of another embodiment of the area A in Fig.
5 is a perspective view schematically showing a pneumatic 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.

Hereinafter, the tire 1 according to the embodiments of the present invention will be described with reference to the drawings.

Fig. 1 is a perspective view schematically showing a pneumatic tire 1 according to an embodiment of the present invention, and Fig. 2 is a sectional view schematically showing the pneumatic tire 1 of Fig. 3 is an enlarged view of the area A in Fig.

1 and 2, a pneumatic tire 1 according to an embodiment of the present invention may include a tread portion 10, a side wall portion 20, a bead portion 30, and a protrusion 50 have.

The pneumatic tire 1 can be mounted on the vehicle in combination with the wheel. The pneumatic tire 1 includes a tread portion 10, a pair of side wall portions 20 disposed at both side ends of the tread portion 10, a tread portion 10 and a pair of side wall portions 20, And an inner liner 23 which is located in the air inlet tire 1 and maintains the internal air pressure of the pneumatic tire 1. [ The pneumatic tire 1 also includes a bead portion 30 located at the bottom of each side wall portion 20 and a belt layer 24 and carcass layer 40 located below the tread portion 10 And a cap ply 27 may further be provided between the tread portion 10 and the belt layer 24. [

The tread portion 10 is made of a thick rubber layer having an area in contact with the ground, and transmits the driving force and the braking force of the vehicle to the ground. On the surface of the tread portion 10, the blocks 130 partitioned by tread patterns and tread patterns for handling stability, traction, and braking ability can be located. The tread patterns may include a plurality of grooves for draining during running on a wet road surface and a sip for improving traction and braking forces. The grooves may include a plurality of first grooves 110 and a plurality of second grooves 120. Although FIGS. 1 and 2 illustrate the case of including the first grooves 110 and the second grooves 120, the present invention is not limited thereto, and the first grooves 110 and the second grooves 120 It is of course possible to further include grooves other than the grooves 120.

Specifically, the first grooves 110 extend along the circumferential direction of the tread portion 10 and can be spaced apart from each other in the width direction of the tread portion 10. [ The first grooves 110 may be longitudinal grooves. In the drawing, three first grooves 110 are shown, but the present invention is not limited thereto.

The second grooves 120 may be formed to communicate with at least one of the first grooves 110. The second grooves 120 may connect the first grooves 110 between the first grooves 110. The second grooves 120 may be transverse grooves connecting the first grooves 110 along a width direction perpendicular to the circumferential direction of the tread portion 10. [

The side wall portion 20 is disposed to extend downward from an end portion of the tread portion 10. The side wall portion 20 is a side portion of the pneumatic tire 1 to protect the carcass layer 40, provide the lateral stability of the pneumatic tire 1, and enhance the ride comfort by performing the bending motion. In addition, the side wall portion 20 serves to transmit the torque of the engine received through the drive shaft to the tread portion 10.

The bead portion 30 is provided at the end of the side wall portion 20 and functions to mount the pneumatic tire 1 to the rim R. [ The bead portion 30 may include bead core 45 and bead filler. The bead core 45 may be formed by twisting a plurality of rubber-coated steel wires, and the bead filler may be a rubber attached to the bead core.

The carcass layer 40 forms the skeleton of the pneumatic tire 1 and sustains the load, impact and the like received by the pneumatic tire 1 and maintains the air pressure of the pneumatic tire 1. [ The carcass layer 40 may be formed by laminating a plurality of cord sheets made of high-strength fiber organic materials such as steel or polyester, rayon, etc., followed by coating with rubber and rolling. In one embodiment, the carcass layer 40 may comprise a first carcass layer and a second carcass layer superimposed on each other. The first carcass layer is turned up at the bead portion 30 and extends toward the tread portion 10. One end of the turned up first carcass layer may extend to cover the inside of the side wall portion 20 to improve the rigidity of the side wall portion 20. [ The second carcass layer is located outside the first carcass layer and is turned up at the bead portion 30 to extend toward the tread portion 10 so that one end of the turned- The inner side of the bead portion 30 can be covered. In the present embodiment, the structure in which the carcass layer 40 is formed of two carcass layers is described, but the present invention is not limited thereto. As another example, the carcass layer 40 may be formed as a single layer.

The belt layer 24 between the tread portion 10 and the carcass layer 40 can reduce the impact of the road surface when the vehicle is traveling and improve the traveling stability by widening the portion of the tread portion 10 contacting the road surface, Separation of the portion 10 and the carcass layer 40 can be prevented. The belt layer 24 may be formed by rolling and coating a plurality of belt cords made of steel with rubber.

A cap ply 27 may further be provided between the tread portion 10 and the belt layer 24. The cap ply 27 can improve performance when traveling with a special cord fabric attached on the belt layer 24. The cap ply 27 may comprise, for example, polyester synthetic fibers.

The inner liner 23 is a layer for preventing air from being exposed to the pneumatic tire 100 in place of the tube, and may be formed of a rubber layer having excellent hermeticity. For example, the inner liner 23 may be made of butyl rubber or the like having a high density and can maintain air pressure in the pneumatic tire 100.

The protruding portion 50 may protrude outward from the outer side surface of the side wall portion 20 with a first height h1 and may be disposed along the circumferential direction of the tire 1. [ The protrusion 50 is formed in a letter shape such as letters and numbers, and can display information to the outside. The protrusion 50 may include a top surface 510 having a first height h1 and a side surface 530 connecting the outer surface of the side wall portion 20 and the top surface 510. [ At this time, the upper surface 510 and the side surface 530 of the protrusion 50 may include at least one of a luminous material, a fluorescent material, and a light emitting material. The projecting portion 50 can emit light by itself including a luminous material, a fluorescent material or a luminescent material, and can easily recognize existence of a vehicle such as a vehicle or a pedestrian with a side of the tire 1 even in a dark place. As another example, the upper surface 510 and the side surface 530 of the protrusion 50 may further include a waterproof material. For example, the projection 50 may be coated with a material such as a waterproof paint. The waterproofing material may comprise at least one selected from the group consisting of acrylic polymers or copolymers, polyolefin polymers or copolymers, polyurethanes, epoxy polymers, and waxes. In this way, the protrusions 50 can prevent contamination due to foreign substances, and can easily remove foreign matter or contaminated surfaces through rain or car wash.

Fig. 4 is an enlarged view of another embodiment of the area A in Fig.

Referring to FIG. 4, the protrusion 50 of another embodiment may have a top surface made of a first irregular surface 550. The first uneven surface 550 is connected to the first inclined surface 551 and the first inclined surface 551 which change from the first height h1 to the second height h2 which is higher than the first height h1, The second inclined surface 553 changing from the height h2 to the first height h1 can be repeatedly arranged. The first irregular surface 550 and the first inclined surface 551 and the second inclined surface 553 may be repeatedly arranged along the circumferential direction of the tire 1. [ The arrangement direction of the first uneven surface 550 is not necessarily limited to the circumferential direction. However, since the first inclined surface 551 and the second inclined surface 553 of the first uneven surface 550 are repeatedly arranged along the circumferential direction and include a luminous material or a fluorescent material, So that the tire 1 can be easily recognized even in the direction or the backward direction.

Meanwhile, the side surface 530 of the protrusion 50 may be formed of a second uneven surface. The second uneven surface is connected to the third inclined surface 531 and the third inclined surface 531 which change in height from the side surface 530 to the third height h3 and is connected to the side surface 530 from the third height h3, And a fourth inclined surface 533 having a height varying to a predetermined height. The third inclined surface 531 and the fourth inclined surface 533 may be repeatedly arranged along the width direction of the tire 1. [ The third uneven surface 531 and the fourth inclined surface 553 are repeatedly arranged in the width direction, so that the protruding portion (the second uneven surface) The side surface 530 of the base member 50 can be easily recognized.

5 is a perspective view schematically showing a pneumatic tire 1 according to another embodiment of the present invention.

5, the pneumatic tire 1 may include a tread portion 10, a side wall portion 20, a bead portion 30, and a concavo-convex portion 60. The pneumatic tire 1 of FIG. 5 is the same as that of the pneumatic tire according to the embodiment except for the concave / convex portion 60, and therefore, the overlapping description will be omitted for the sake of convenience.

The concavo-convex portion 60 is disposed on the outer side surface of the side wall portion 20 and has a first inclined surface whose height changes from the outer surface to a first height h4 and a second inclined surface which is connected to the first inclined surface, ) To the outer surface can be repeatedly arranged. The first inclined surface and the second inclined surface are repeatedly arranged along the circumferential direction of the tire so that they can be easily recognized in the forward direction or the backward direction of the vehicle. The concave and convex portion 60 may include at least one of a luminous material, a fluorescent material, and a light emitting material. The concave and convex portion 60 includes a luminous material or a fluorescent material so as to emit itself, thereby making it possible not only to enhance the appearance of the vehicle but also to recognize the tire 1 of the vehicle from the outside. At this time, the concave-convex portion 60 has concave and convex portions composed of the first inclined surface and the second inclined surface as described above, so that the vehicle can be easily recognized even in various directions outside. Meanwhile, as another embodiment, the uneven portion 60 may further include a waterproof material. This helps to prevent contamination by foreign substances and to easily remove foreign matter or contaminated surfaces through rain or car wash.

As described above, the pneumatic tire according to the embodiments of the present invention includes at least one of a luminous material, a fluorescent material, and a luminescent material in protrusions disposed in a side wall portion, so that a vehicle including a pneumatic tire at night It can be easily recognized from the outside. Further, the pneumatic tire can more easily recognize the tire to be emitted in various directions as well as in the side direction of the vehicle by forming the upper surface or the side surface of the projecting portion as an uneven surface.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the exemplary embodiments, and that various changes and modifications may be made therein without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

1: Tire
10: Tread portion
20:
23: inner liner
24: Belt layer
27: Cap fly
30: bead portion
40: Carcass layer
45: Bead core
100: pneumatic tire
110: first grooves
120: Grooves
130: Blocks
50:
510: upper surface
530: side face
531: third inclined surface
533: fourth inclined surface
550: first uneven surface
551: first inclined surface
553:

Claims

A tread having a region in contact with the ground;
A bead portion mounted on the rim;
A side wall portion connecting the tread portion and the bead portion; And
And a protrusion having a first height from an outer side surface of the side wall portion and protruding outwardly and disposed along a circumferential direction of the tire,
Wherein the projecting portion includes an upper surface having the first height and a side surface connecting the upper surface and the outer surface of the side wall portion, wherein the upper surface and the side surface of the projecting portion are made of a light- And at least one of the materials,
Wherein the upper surface of the protrusion comprises a first irregular surface including first irregularities formed repeatedly along a first direction,
Wherein the side surface of the protrusion comprises a second irregular surface including second irregularities formed repeatedly along a second direction different from the first direction.

The method according to claim 1,
Wherein the upper surface and the side surface of the protrusion further comprise a waterproof material.

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The method according to claim 1,
Wherein the first uneven surface has a first inclined surface changing from the first height to a second height higher than the first height and a second inclined surface connected to the first inclined surface and changing from the second height to the first height, The pneumatic tire is repeatedly disposed.

5. The method of claim 4,
Wherein the first irregular surface is repeatedly disposed along the circumferential direction of the tire, the first inclined surface and the second inclined surface.

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The method according to claim 1,
The second irregular surface has a third inclined surface whose height changes from the side surface to a third height and a fourth inclined surface which is connected to the third inclined surface and whose height changes from the third height to the side surface, , Pneumatic tires.

8. The method of claim 7,
Wherein the second irregular surface is repeatedly disposed along the width direction of the tire, the third inclined surface and the fourth inclined surface.

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