KR102374963B1 - Tire having groove improved drain performance - Google Patents

Abstract

The present invention relates to a tire having a groove with improved drainage, which is a tire made with a groove which divides a tread vertically and horizontally to form blocks. The groove is made by forming drainage promotion protruding curved surfaces that protrude from each surface to a certain length to induce drainage, and one or all of the drainage promotion protruding curved surfaces and a drainage promotion heterogeneous layer are combined and formed on the groove of the tread to improve drainage performance. Therefore, drainage of the tire is improved, so that driving and braking performance of the tire is improved even on a wet road or snowy road.

Description

Tire having groove improved drain performance

The present invention relates to a tire having a drainage improving groove, and more particularly, by combining any one or both of a cylindrical protrusion, a drainage promoting protruding curved surface, and a drainage promoting heterogeneous layer to improve the drainage function in the groove of the tread. The present invention relates to a tire having a drainage improving groove, which improves the drainage performance of the tire by forming the tire to improve running and braking performance of the tire even on wet roads and snowy roads.

In general, "tire with improved drainage performance is already widely disclosed, and detailed description is omitted, and reference may be made to Patent Registration No. 10-0812049 "tire for automobile with improved drainage performance", and the like.

With only a simple groove formed in the conventional tread, it is difficult to achieve drainage performance when driving in the rain, so there is a problem that it becomes a factor that interferes with steering stability and noise reduction.

On the other hand, in the "vehicle tire with improved drainage performance", by forming mountain-shaped vortex projections on three sides of the groove, the critical speed of the occurrence of aquaplaning phenomenon is increased to improve driving and braking performance, but the vortex projections There is a problem in that the ratio of moisture in the air is high and if the moisture is not discharged quickly, driving and braking performance are reduced when driving on wet roads and snowy roads, thereby hindering handling.

[Patent Document 0001] Registered Patent No. 10-0812049 "Automotive tire with improved drainage performance" (Notice 2008.03.10.)

The present invention was invented to solve the above problems, and an object of the present invention is to combine any one or both of a columnar protrusion, a drainage promoting protruding curved surface, and a drainage promoting heterogeneous layer to improve the drainage function in the groove of the tread so that it can be formed.

Another object of the present invention is to improve the handling of the tire by improving the driving and braking performance of the tire even on wet roads and snowy roads by improving the drainage properties of the tire.

Another object of the present invention is to improve the drainage performance by using a columnar protrusion or a drainage promoting protruding surface and a drainage promoting heterogeneous layer, so that the traction with wet and snowy road surfaces is improved, so that steering and braking performance is accurately achieved is to make it go away.

Another object of the present invention is to form only a cylindrical protrusion or a drainage promoting protruding surface in the groove of a tire, or a drainage promoting protruding curved surface formed by a material in which a rubber mixture material and a hydrophilic inorganic material are mixed, and a drainage promoting heterogeneous layer groove By further forming in the , it is intended to further improve the drainage.

The present invention for achieving the above technical object is a tire in which a groove for forming blocks by dividing a tread in the longitudinal and lateral directions is formed. It is characterized in that the protruding curved surfaces are formed.

The drainage promoting protruding curved surfaces are formed of a rubber mixture material, the curved body protruding from each side of the groove, and the upper end of the curved body is characterized in that a top round having a certain curvature is formed so as to quickly shake off moisture. do it with

The drainage promoting protruding curved surfaces are arranged in the groove to cross each other in the longitudinal and transverse directions, and characterized in that the curved body is further formed with curved grooves having an arc-shaped cross section so as to be open toward the rolling direction.

In the groove, it is characterized in that only a drainage promoting heterogeneous layer formed by a material in which a rubber mixture material and a hydrophilic inorganic material are mixed over three surfaces to improve drainage is further formed.

In the drainage promoting heterogeneous layer, it is characterized in that the drainage promoting protruding curved surfaces formed by the mixed material of the rubber mixture material and the hydrophilic inorganic material are further formed.

The drainage promoting protruding curved surfaces include a curved body protruding from each side of the groove, and a top round of a certain curvature at the top of the curved body to quickly shake off moisture, a rubber mixture material and a hydrophilic inorganic material are mixed It is characterized in that it is molded by the used material.

The groove is characterized in that only a thin film layer is formed by applying a hydrophilic inorganic material to improve drainage, but omitting the drainage promoting protruding curved surfaces.

The tire having the drainage improving groove of the present invention has the effect of allowing the formation of any one or both of a cylindrical protrusion that improves the drainage function in the groove of the tread, a curved surface that promotes drainage, and a heterogeneous layer that promotes drainage. there is.

In addition, by improving the drainage of the tire, there is an effect of improving the handling by improving the driving and braking performance of the tire even on wet roads and snowy roads.

In addition, by using a columnar protrusion or a drainage-facilitating protruding surface and a drainage-promoting heterogeneous layer to improve drainage performance, there is an effect of improving traction with wet and snowy road surfaces so that steering and braking performance are accurately achieved.

In addition, the columnar protrusion or the drainage promoting protruding surface and the drainage promoting heterogeneous layer have the effect of improving the drainage performance, so that the running and braking performance of the tire is properly exhibited even on a dry road, a wet road, and a snowy road.

In addition, by further forming only the drainage promoting protruding surface in the groove of the tire, or by further forming the drainage promoting protruding curved surface and drainage promoting heterogeneous layer formed by the rubber mixture material and the mixed material of the hydrophilic inorganic material in the groove, the drainage can be improved as well It has the effect of further improving the heat dissipation of the tire.

1 is a view showing a tire provided with a drainage improving groove according to the present invention;
Fig. 2 is a side cross-sectional view showing another embodiment of a tire having a drainage improving groove according to the present invention;
Fig. 3 is a side cross-sectional view showing another embodiment of the drainage improving groove shown in Fig. 2;
4a)b)c)d) are images showing an embodiment of the drainage improving groove shown in FIG. 3 and a result of simulating drainage flow.
Fig. 5 is a view showing another embodiment of the drainage improving groove shown in Fig. 1;

In order to fully understand the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This example is provided to more completely explain the present invention to those of ordinary skill in the art. Accordingly, the shapes of elements in the drawings may be exaggerated to emphasize a clearer description. It should be noted that the same members in each drawing are sometimes shown with the same reference numerals. In addition, detailed descriptions of well-known functions and configurations determined to unnecessarily obscure the gist of the present invention will be omitted.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a tire having a drainage improving groove of the present invention will be described in detail by explaining a preferred embodiment of the present invention with reference to the accompanying drawings.

The tire 2 having the drainage improving groove according to the present invention, as shown in FIG. 1, is formed by dividing the tread 4 in the longitudinal and transverse directions so that the blocks 6 are formed. . In addition, in the groove 10 , drainage promoting protruding curved surfaces 20 protruding from each surface to a predetermined length to induce drainage are formed.

In addition, the drainage promoting protruding curved surfaces 20 are formed of a rubber mixture material, and the curved body 22a protruding from each side of the groove 10, and the upper end of the curved body 22a, can quickly shake off moisture. A top round (22b) having a certain curvature is formed so as to be able to do so. In addition, the groove 10 may be formed by omitting the drainage promoting protruding curved surface 20 and forming a columnar protrusion. In this case, the rubber mixture material is a rubber material generally used for tire manufacturing. In addition, the curved body (22a), while facing the moisture disperses and raises the airflow flow around. And the top round (22b), moisture does not stay under the influence of vibration, so that it falls off easily.

As shown in b) and c) of FIG. 4, the drainage promoting protruding curved surfaces 20 are arranged in the groove 10 to cross each other in the longitudinal and lateral directions, the curved body so as to have an open shape toward the rolling direction. A curved groove (22g) having an arc-shaped cross section is further formed in (22a). That is, when the tire 2 is rolled, the curved groove 22g generates a vortex when the airflow that collides with the front round surface of the curved body 22a flows to the rear side while moving, and the moisture introduced into the groove 10 to move rapidly backwards. At this time, the moisture is rapidly drained by the airflow and vehicle speed (increasing the tire cloud) that flows rapidly through between the drainage promoting protruding curved surfaces 20 .

In addition, as shown in FIG. 2, in the groove 10, only the drainage promoting heterogeneous layer 30 formed by a material mixed with a rubber mixture material and a hydrophilic inorganic material over three surfaces to improve drainage is also formed. possible. That is, the water, etc. flowing into the groove 10 is induced at the same time as the inflow by the hydrophilic inorganic material.

And the rubber mixture material is a general material used in tire manufacturing, but the hydrophilic inorganic material is a material in which silicon oxide (SiO2), aluminum oxide (Al2O3), calcium carbonate (CaCO3), and titanium dioxide (TiO2) are mixed.

In addition, as shown in FIG. 3 , in the drainage promoting heterogeneous layer 30 , drainage promoting protruding curved surfaces 20 formed by a material in which a rubber mixture material and a hydrophilic inorganic material are mixed are further formed. The drainage promoting protruding curved surfaces 20 allow the introduced moisture to be rapidly drained under the influence of the air flow generated by the tire cloud.

In addition, the drainage promoting protruding curved surfaces 20 have a curved body 22a protruding from each side of the groove 10, and an upper end of the curved body 22a has a predetermined curvature so as to quickly shake off moisture. The round 22b is formed, and is molded by a material in which a rubber mixture material and a hydrophilic inorganic material are mixed.

In addition, as shown in FIG. 5 , the groove 10 may be formed by omitting the drainage promoting protruding curved surfaces 20 , but forming only the thin film layer 40 by applying a hydrophilic inorganic material to improve drainage. That is, since the inside of the groove 10 is not a part where abrasion occurs, a thin film layer (hydrophilic film layer) is formed by applying a hydrophilic material carboxybetaine methacrylate polymer (DOPA?PCB), polyethylene glycol, etc. to the surface to improve hydrophilicity. It is also possible to The thin film layer formed on the surface of the groove 10 improves drainage performance.

Hereinafter, an example of use of a tire having a drainage improving groove through the present invention made as described above will be described.

First, if the tire is driving on a dry road,

In all cases where only the cylindrical protrusion or drainage promoting protruding curved surface 20 is formed in the groove 10 of the tire 2, or the drainage promoting heterogeneous layer 30 and the drainage promoting protruding curved surface 20 are formed together, the tire ( 2) The air passes through the groove 10 according to the cloud. At this time, the air introduced into the groove 10 comes into contact with the vibrating drainage promoting protruding curved surfaces 20 to heat the tire 2 . This dissipation of the heat of the tire 2 extends the life of the tire for a long time.

On the other hand, when driving on a wet road,

In all cases where only the cylindrical protrusion or drainage promoting protruding curved surface 20 is formed in the groove 10 of the tire 2, or the drainage promoting heterogeneous layer 30 and the drainage promoting protruding curved surface 20 are formed together, the tire ( When 2) is rolled, the moisture introduced into the groove 10 is quickly drained together with the air flowing rapidly between the drainage promoting protruding curved surfaces 20 . That is, the moisture introduced into the groove 10 by the vibration of the drainage promoting protruding curved surfaces 20 and the flow of air flowing between the drainage promoting protruding curved surfaces 20 is rapidly drained.

In addition, the moisture in the groove 10 is naturally promoted to induce drainage out of the groove 10 by the drainage promoting protruding curved surface 20 and the drainage promoting heterogeneous layer 30 . Accordingly, the tire 10 has improved drainage properties and improved driving performance when rolling, but the traction and braking force on a wet road surface are improved through the improvement of drainage properties.

Also, when driving in snow,

When the tire 2 rolls on the snow, the drainage promoting protruding curved surface 20 formed by mixing hydrophilic inorganic materials and the drainage promoting heterogeneous layer 30 facilitates the removal of snow embedded in the groove 10 and moisture formed by melting snow. Vibration and the characteristics of hydrophilic inorganic materials improve drainage properties such as easily wiping off.

The embodiments of the tire having the drainage improving groove of the present invention described above are merely exemplary, and those of ordinary skill in the art to which the present invention pertains can make various modifications and equivalent other embodiments therefrom. You will be able to see the point well. Therefore, it will be well understood that the present invention is not limited to the form mentioned in the above detailed description. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims. Moreover, it is to be understood that the present invention covers all modifications, equivalents and substitutions falling within the spirit and scope of the invention as defined by the appended claims.

2: Tire 4: Tread
6: Block 10: Groove
20: drainage promoting protrusion curved surface 22a: curved body
22b: top round 22g: curved groove
30: drainage promoting heterogeneous layer 40: thin film layer

Claims (8)

In the tire (2) comprising a groove (10) that divides the tread (4) in the longitudinal and transverse directions so that blocks (6) are formed,
In the groove 10,
Drainage promotion protruding curved surfaces 20 that protrude on each surface with a predetermined length to induce drainage are formed.
The drainage promoting protruding curved surfaces 20 are,
They are arranged in the groove 10 to cross each other in the longitudinal and transverse directions,
A tire with a drainage improving groove, characterized in that a curved groove (22g) having an arc-shaped cross section is further formed in the curved body (22a) so as to have an open shape toward the rolling direction of the tire. The method of claim 1,
The drainage promoting protruding curved surfaces 20 are,
It is formed of a rubber mixture material,
A curved body (22a) protruding from each side of the groove (10), and the upper end of the curved body (22a) is characterized in that the top round (22b) of a certain curvature is formed so as to quickly shake off moisture. Tires with drainage improvement grooves. delete delete The method of claim 1,
In the groove 10,
A drainage promoting heterogeneous layer 30 formed by a mixed material of a rubber mixture material and a hydrophilic inorganic material is formed over three sides to improve drainage,
A tire having a drainage improving groove, characterized in that the drainage promoting protruding curved surface (20) is formed on the drainage promoting heterogeneous layer (30). delete The method of claim 1,
The drainage promoting protruding curved surfaces 20 are,
A curved body (22a) protruding from each side of the groove (10), and the upper end of the curved body (22a) are formed with a top round (22b) of a certain curvature to quickly shake off moisture,
A tire having a drainage improving groove, characterized in that it is molded by a material in which a rubber mixture material and a hydrophilic inorganic material are mixed. delete

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