KR100812049B1 - Vehicle tire improved hydro-planning - Google Patents

Vehicle tire improved hydro-planning Download PDF

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Publication number
KR100812049B1
KR100812049B1 KR1020060123157A KR20060123157A KR100812049B1 KR 100812049 B1 KR100812049 B1 KR 100812049B1 KR 1020060123157 A KR1020060123157 A KR 1020060123157A KR 20060123157 A KR20060123157 A KR 20060123157A KR 100812049 B1 KR100812049 B1 KR 100812049B1
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South Korea
Prior art keywords
vortex
groove
protrusion
tire
vehicle tire
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Application number
KR1020060123157A
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Korean (ko)
Inventor
허민수
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한국타이어 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/032—Patterns comprising isolated recesses
    • B60C11/0323—Patterns comprising isolated recesses tread comprising channels under the tread surface, e.g. for draining water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/13—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/13—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
    • B60C11/1353—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove bottom
    • B60C2011/1361—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove bottom with protrusions extending from the groove bottom

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Abstract

A vehicle tire having improved drain performance is provided to increase vortex generation effect by installing vortex generators at the bottom and two sidewalls of a groove. A vehicle tire having improved drain performance comprises a tread formed with a groove(1), a sidewall and a bead section. Vortex generators are installed at the bottom and two sidewalls of the groove. The vortex generators are prepared in the form of a vortex protrusion(2) having a mountain shape, so that vortex generation effect is increased, drain performance of the tire is improved and hydro-planning phenomenon is reduced. The vortex generator has a height of 3mm or less. The vortex protrusion has a smooth slope hill(21) and a rapid inclination section(22). The vortex protrusion is prepared in the form of a diamond.

Description

배수성능을 향상시킨 자동차용타이어{Vehicle Tire Improved Hydro-planning}Vehicle Tires with Improved Drainage Performance {Vehicle Tire Improved Hydro-planning}

도 1 은 본 발명의 일실시예의 요부 발췌 사시도1 is a perspective view of main parts excerpt of one embodiment of the present invention

도 2 는 본 발명의 다른 실시예의 요부 발췌 사시도Figure 2 is a perspective view of the main portion of another embodiment of the present invention

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

1. 그루브1. Groove

2. 와류돌기2. Vortex protrusion

21. 경사언덕 21. Sloped Hill

22. 급경사부 22. Steep slope

본 발명은 그루브에 와류돌기를 형성시킴으로서 하이드로플래닝(Hydro- planning) 현상이 일어나는 임계속도를 높인 타이어를 제공하기 위한 것이다.The present invention is to provide a tire of increasing the critical speed at which the hydro-planing phenomenon occurs by forming the vortex protrusion in the groove.

타이어의 트레드에는 젖은 노면에서의 배수 성능을 향상시키기 위하여 그루브를 설치하게 되는데, 이러한 그루브의 표면이 매끈하게 되어 있으면, 유체가 흐를 때 표면과의 마찰로 인해 표면과 가까울수록 유동의 분자속도는 느려지며 유동속도가 더 빨라지면 역압력구배로 인해 표면과 유체가 떨어지는 박리현상이 일어나게 된다. 유동의 분자속도는 표면과 가까울수록 느려지고, 박리현상의 발생은 유동의 흐름속도가 증가하거나 밀도가 증가하면 잘 일어나고, 점성계수가 증가하면 지연되어 잘 일어나지 않는다. 이는 유체역학의 레이놀즈수 이론에 따른다.The tread of the tire is provided with grooves to improve drainage performance on wet roads. If the surface of these grooves is smooth, the molecular velocity of the flow becomes slower as it is closer to the surface due to friction with the surface as the fluid flows. If the flow velocity is higher, the surface and fluid drop off due to the back pressure gradient. The molecular velocity of the flow slows down as it gets closer to the surface, and delamination occurs well when the flow velocity increases or the density increases, and when the viscosity coefficient increases, the delay occurs. This follows the Reynolds number theory of hydrodynamics.

그리하여, 표면에 와류발생장치를 설치함으로서 표면에 와류가 발생되게 하여 경계층의 두께를 얇게함으로서 표면의 유동속도를 증가시키고 그리하여 배수성을 향상시키도록 하여서 된 타이어가 제공된 바 있다. Thus, there has been provided a tire in which a vortex generating device is provided on the surface to generate vortices on the surface, thereby making the thickness of the boundary layer thin, thereby increasing the flow rate of the surface and thus improving drainage.

즉, 그루브의 바닥에 그루브를 가로지르는 다수의 돌조를 형성시켜 그루브의 바닥이 파형을 이루게 하여서 된 타이어(특허 등록 제10-0335738호)가 제공된 바 있다. 그러나 이는 그루브의 바닥에만 돌조가 형성되고 측벽에는 형성된 것이 아니어서 와류 발생 효과가 충분치 않은데다가, 그루브를 가로지르는 다수의 돌조는 와류 발생 효과가 만족스럽지 못한 결점이 있었다. 그리하여, 다시 그루브의 바닥에 쐐기형의 단층을 형성시켜서 된 타이어(공개번호10-200500119575)가 제공된 바 있다. 그러나, 이 또한 그루브의 바닥에만 단층이 형성되고 측벽에는 단층이 형성되지 아니하며, 단층 형상의 바닥만으로는 역시 와류 발생 효과가 충분치 않은 결점이 있었다.That is, a tire (patent registration No. 10-0335738) has been provided in which a plurality of protrusions that cross the groove are formed on the bottom of the groove so that the bottom of the groove has a wave shape. However, this is because the protrusions are formed only at the bottom of the groove and not at the sidewalls, so that the effect of generating the vortex is insufficient, and many of the protrusions across the groove are not satisfactory. Thus, there has been provided a tire (publication number 10-200500119575) formed by forming a wedge-shaped monolayer at the bottom of the groove. However, this also has a drawback in that a single layer is formed only at the bottom of the groove and no single layer is formed at the sidewall, and the single-layer bottom alone is also insufficient in the vortex generation effect.

이에 본 발명은 와류발생장치를 그루브의 바닥뿐 아니라 양 측벽에도 설치하여 와류발생효과를 증진시킬 뿐 아니라, 와류발생장치를, 높이 3mm 이하이고 그루브 방향으로 길어서 장축이 단축 대비 300% 이상인 산(山) 모양으로 형성된 와류돌기로 형성시킴으로서 와류발생효과를 증진시켜 그루브의 배수성능을 향상시키고, 그리하여 하이드로플래닝 현상을 감소시킬 수 있게 한 것인 바 이와 같은 본 발명을 첨부된 도면에 의하여 설명하면 다음과 같다.Therefore, the present invention not only enhances the vortex generating effect by installing the vortex generating device on both sidewalls of the groove as well as the bottom of the groove, but also the vortex generating device having a height of 3 mm or less and being long in the groove direction so that the major axis is 300% or more relative to the short axis The present invention will be described with reference to the accompanying drawings. The present invention will be described with reference to the accompanying drawings by forming a vortex protrusion formed in the shape to enhance the vortex generating effect to improve the drainage performance of the groove, and thus to reduce the hydroplaning phenomenon. same.

트레드와 사이드월 및 비드부로 구성되고 트레드에 그루브(1)를 형성시켜서 된 것에 있어서, 본 발명은 와류발생장치를 그루브(1)의 바닥과 양 측벽에 형성시키는 것을 특징으로 한다.The present invention is composed of a tread, a sidewall and a bead portion, and the groove 1 is formed on the tread. The present invention is characterized in that the vortex generator is formed on the bottom and both sidewalls of the groove 1.

위의 와류발생장치는 그 높이가 3mm 이하이고, 그루브 방향으로 길어서 장축이 단축 대비 300% 이상인 산(山) 모양으로 형성된 와류돌기(2)로 구성시킴이 바람직하다. The above vortex generating device is preferably 3mm or less in height and long in the groove direction to form a vortex protrusion 2 formed in a mountain shape having a long axis of 300% or more relative to a short axis.

산 모양으로 된 와류돌기(2)는 첨부된 도면 도 1 에 도시된 바와 같이 완만한 경사언덕(21)으로 된 돌기로 형성시키는 것이 바람직하며, 이와 같은 와류돌기(2)는 그 흐름의 출측에 급경사부(22)를 형성시켜 와류 효과를 증폭시키는 것이 바람직하다.The mountain-shaped vortex projection 2 is preferably formed by a projection of a gentle slope hill 21, as shown in the accompanying drawings, Figure 1, such a vortex projection (2) is to the exit side of the flow It is preferable to form the steep slope 22 to amplify the eddy current effect.

또한 산 모양으로 된 와류돌기(2)는 첨부된 도면 도 2 에 도시된 바와 같이, 이를 다이아몬드형(5면체)으로 형성시킬 수도 있다. In addition, the vortex protrusion 2 in the shape of a mountain may be formed in a diamond shape (pentahedron) as shown in FIG. 2.

이와 같이 구성된 본 발명은, 와류발생장치를 그루브의 바닥뿐 아니라 양 측벽에도 설치하여 와류발생효과를 증진시킬 뿐 아니라, 와류발생장치를 산(山) 모양으로 된 와류돌기로 형성시킴으로서 와류발생효과를 증진시켜 그루브의 배수성능을 향상시키고, 그리하여 하이드로플래닝 현상을 감소시킬 수 있는 효과가 있다.According to the present invention configured as described above, the vortex generating device is installed not only on the bottom of the groove but also on both sidewalls to enhance the vortex generating effect, and by forming the vortex generating device into a vortex protrusion having a mountain shape, the vortex generating effect is improved. By improving the drainage performance of the grooves, thereby reducing the hydroplaning phenomenon is effective.

Claims (4)

삭제delete 삭제delete 트레드와 사이드월 및 비드부로 구성되고 트레드에 그루브(1)를 형성되며, 그루브(1)에 와류발생장치가 설치된 것에 있어서, 와류발생장치가 그루브(1)의 바닥과 양 측벽에 함께 설치되고, 와류발생장치는 그루브 방향으로 길어서 장축이 단축 대비 300% 이상인 산(山) 모양으로 형성된 와류돌기(2)로 구성된 것이며, 산 모양으로 된 와류돌기(2)는 완만한 경사언덕(21)으로 된 돌기로 형성되고, 흐름의 출측에 급경사부(22)를 가지는 것을 특징으로 하는 배수성능을 향상시킨 자동차용타이어.Consists of a tread and sidewalls and a bead portion, the groove (1) is formed on the tread, the vortex generator is installed in the groove (1), the vortex generator is installed together on the bottom and both side walls of the groove (1), The vortex generator is composed of a vortex protrusion (2) formed in a mountain shape having a long axis of 300% or more relative to a short axis because the vortex generating device is long in the groove direction. A tire for an automobile having an increased drainage performance, wherein the tire has a steep inclined portion 22 formed on a projection side. 삭제delete
KR1020060123157A 2006-12-06 2006-12-06 Vehicle tire improved hydro-planning KR100812049B1 (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101267970B1 (en) 2011-11-07 2013-05-27 한국타이어 주식회사 Groove of pneumatic tire improved drain performance
KR101434662B1 (en) 2012-11-26 2014-08-28 한국타이어 주식회사 A tire for car
KR101533510B1 (en) * 2013-12-23 2015-07-02 한국타이어 주식회사 Pneumatic Radial Tire
KR20170092267A (en) 2016-02-03 2017-08-11 금호타이어 주식회사 Pneumatic Tire for Mud Terrain
KR101855596B1 (en) * 2016-10-25 2018-05-04 금호타이어 주식회사 Tyre with improved drainage
CN112313090A (en) * 2018-06-21 2021-02-02 株式会社普利司通 Tyre for vehicle wheels
KR20210082701A (en) * 2019-12-26 2021-07-06 넥센타이어 주식회사 Tires for reduce air resistance
KR102374963B1 (en) 2020-09-15 2022-03-17 넥센타이어 주식회사 Tire having groove improved drain performance
KR20230023286A (en) * 2021-08-10 2023-02-17 넥센타이어 주식회사 Pneumatic tire with noise reduction block

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002219906A (en) * 2000-02-07 2002-08-06 Bridgestone Corp Tire
JP2004196145A (en) * 2002-12-19 2004-07-15 Yokohama Rubber Co Ltd:The Pneumatic tire

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002219906A (en) * 2000-02-07 2002-08-06 Bridgestone Corp Tire
JP2004196145A (en) * 2002-12-19 2004-07-15 Yokohama Rubber Co Ltd:The Pneumatic tire

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101267970B1 (en) 2011-11-07 2013-05-27 한국타이어 주식회사 Groove of pneumatic tire improved drain performance
KR101434662B1 (en) 2012-11-26 2014-08-28 한국타이어 주식회사 A tire for car
KR101533510B1 (en) * 2013-12-23 2015-07-02 한국타이어 주식회사 Pneumatic Radial Tire
KR20170092267A (en) 2016-02-03 2017-08-11 금호타이어 주식회사 Pneumatic Tire for Mud Terrain
KR101855596B1 (en) * 2016-10-25 2018-05-04 금호타이어 주식회사 Tyre with improved drainage
CN112313090A (en) * 2018-06-21 2021-02-02 株式会社普利司通 Tyre for vehicle wheels
US11872847B2 (en) 2018-06-21 2024-01-16 Bridgestone Corporation Tire
KR20210082701A (en) * 2019-12-26 2021-07-06 넥센타이어 주식회사 Tires for reduce air resistance
KR102307851B1 (en) * 2019-12-26 2021-10-05 넥센타이어 주식회사 Tires for reduce air resistance
KR102374963B1 (en) 2020-09-15 2022-03-17 넥센타이어 주식회사 Tire having groove improved drain performance
KR20230023286A (en) * 2021-08-10 2023-02-17 넥센타이어 주식회사 Pneumatic tire with noise reduction block
KR102587416B1 (en) * 2021-08-10 2023-10-12 넥센타이어 주식회사 Pneumatic tire with noise reduction block

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