KR100728544B1 - Pneumatic vehicle tire - Google Patents

Pneumatic vehicle tire Download PDF

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Publication number
KR100728544B1
KR100728544B1 KR1020060061907A KR20060061907A KR100728544B1 KR 100728544 B1 KR100728544 B1 KR 100728544B1 KR 1020060061907 A KR1020060061907 A KR 1020060061907A KR 20060061907 A KR20060061907 A KR 20060061907A KR 100728544 B1 KR100728544 B1 KR 100728544B1
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KR
South Korea
Prior art keywords
groove
water discharge
lateral
vertical
pneumatic tire
Prior art date
Application number
KR1020060061907A
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Korean (ko)
Inventor
박수훤
Original Assignee
한국타이어 주식회사
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Priority to KR1020060061907A priority Critical patent/KR100728544B1/en
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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
    • B60C11/13—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
    • B60C11/04—Tread patterns in which the raised area of the pattern consists only of continuous circumferential ribs, e.g. zig-zag
    • 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
    • B60C11/11—Tread patterns in which the raised area of the pattern consists only of isolated elements, e.g. blocks
    • 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
    • B60C11/1307—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove walls
    • B60C11/1315—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove walls having variable inclination angles, e.g. warped groove walls
    • 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
    • B60C11/1307—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove walls
    • B60C2011/133—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove walls comprising recesses

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

Abstract

A pneumatic tire of a vehicle is provided to effectively discharge stagnant water on the lower side of a vertical groove by forming at least one water discharge groove connecting the lower sides of the vertical groove and a lateral groove on a border between the vertical and lateral grooves, to improve driving condition on the wet road, and to prevent a hydroplaning phenomenon. A pneumatic tire of a vehicle comprises a deep vertical groove(1), a lateral groove(2), and at least one water discharge groove(3). The lateral groove is shallow relatively to the vertical groove. The water discharge groove is formed on the border between the vertical and lateral grooves to link a lower side(11) of the vertical groove with a lower side(22) of the lateral groove. The shape of the water discharge groove has a horizontal square section with a certain width and decreasing height downward. A corner contacted with the lateral side and the backside has an inflection point.

Description

차량용 공기입 타이어 {Pneumatic vehicle tire}[0001] Pneumatic vehicle tire [0002]

도 1 은 종래의 차량용 타이어의 일요부 발췌 사시도.BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a conventional tire for a vehicle. FIG.

도 2 는 본 발명의 일 실시예의 요부를 발췌하여 도시한 사시도.FIG. 2 is a perspective view illustrating an essential part of an embodiment of the present invention. FIG.

도 3 은 본 발명 타이어에 형성되는 물배출홈의 일 예시도.Fig. 3 is an example of a water discharge groove formed in the tire of the present invention. Fig.

도 4 는 본 발명 타이어에 형성되는 물배출홈의 다른 실시예의 사시도.4 is a perspective view of another embodiment of the water discharge groove formed in the tire of the present invention.

도 5 는 본 발명의 차량용 타이어의 성능평가 실험결과를 나타낸 도표.5 is a graph showing the results of performance evaluation tests of the vehicle tire of the present invention.

<도면의 주요부분에 대한 부호의 설명>Description of the Related Art

1. 종그루브1. Bell groove

11. 저부 12. 내벽11. bottom 12. inner wall

2. 횡그루브2. Lateral grooves

3. 물배출홈3. Water discharge groove

31. 횡단면 32. 측면31. Cross section 32. Side

33. 바닥면 34. 모서리33. Floor surface 34. Corner

본 발명은 본 발명은 배수성능을 향상시킨 차량용 공기입 타이어에 관한 것이다. The present invention relates to a pneumatic tire for a vehicle having improved drainage performance.

트레드에 종그루브와 횡그루브가 형성된 차량용 타이어에 있어서, 횡그루브가 원주방향의 종그루브의 바닥면과 같은 깊이로 형성되어 있는 경우는 물이 횡그루브를 통해 용이하게 배출되나, 도 1에 도시된 바와 같이 횡그루브(101)의 깊이가 낮거나 횡그루브에 타이바(tie-bar)가 형성되어있는 경우에는 종그루브(102)의 바닥면에 일정량의 물이 고여 있게 되는데, 이는 노면에서 타이어가 수상주행(hydroplane)을 하게 하는 요인이 되어 젖은 노면에서의 주행성능이 저하될 수 있다. In the case of a tire for a vehicle in which a tread has longitudinal grooves and transverse grooves, water is easily discharged through the transverse grooves when the transverse grooves are formed at the same depth as the bottom surface of the longitudinal grooves in the circumferential direction, When a depth of the transverse groove 101 is low or a tie bar is formed in the transverse groove, a certain amount of water is accumulated on the bottom surface of the longitudinal grooves 102, It becomes a factor to cause a hydroplane, and the running performance on a wet road surface may be deteriorated.

이러한 문제점을 해결하기 위해 JP 2005-112030A에서는 그루브 내면에 차폐판을 설치하여 물을 횡그루브로 이동시키는 방법이 소개된 바 있다. 그러나 이러한 방법은 그루브 내면에 차폐판을 추가적으로 설치해야하는 번거로움이 있고, 많은 유량이 유입되는 경우 역시 수상주행(hydroplane)현상을 유발할 염려가 있었다. To solve these problems, JP 2005-112030A discloses a method of moving a water to a transverse groove by installing a shielding plate on the inner surface of the groove. However, this method has the disadvantages of additionally installing a shielding plate on the inner surface of the groove, and when a large amount of flow is introduced, the hydroplane phenomenon may occur.

또한 JP1999-263104A에서는 블록형 패턴에서 블록의 예각부분을 유선형으로 모따기 처리를 함으로써 물의 흐름을 원활하게 하는 방법을 제시하였으나 배수능력에서 만족스럽지 못한 점이 있었다. In JP1999-263104A, a method of smoothly flowing water by chamfering the acute angle portion of a block in a block-shaped pattern has been proposed, but it has not been satisfactory in drainage ability.

이에, 본 발명은 깊은 종그루브와 상대적으로 깊이가 얕은 횡그루브의 경계부에 종그루브의 저부와 횡그루브의 저부를 잇는 하나 이상의 물배출홈을 형성시킴으로써, 종방향 그루브의 저면에 고인 물을 효과적으로 배출하여 젖은 노면에서의 주행성능을 향상시키며, 아울러 수상주행(hydroplane) 현상을 방지하는 것에 그 목적이 있다.Accordingly, by forming one or more water discharge grooves connecting the bottom of the longitudinal grooves and the bottom of the longitudinal grooves at the boundary between the deep longitudinal grooves and the relatively shallow transverse grooves, it is possible to effectively discharge the debris from the bottom of the longitudinal grooves Thereby improving the running performance on a wet road surface and preventing hydroplane phenomenon.

이하, 첨부된 도면에 따라 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명의 일실시예의 요부를 발췌하여 도시한 사시도이다. Fig. 2 is a perspective view showing an essential part of an embodiment of the present invention.

본 발명은 트레드와 사이드월 및 비드부로 구성되며, 트레드에 블록과 그루브가 형성된 것에 있어서, 깊은 종그루브(1)와 상대적으로 깊이가 얕은 횡그루브(2)의 경계부에 종그루브(1)의 저부(11)와 횡그루브(2)의 저부(22)를 잇는 하나 이상의 물배출홈(3)을 형성시킨 것을 특징으로 한다.The present invention is characterized in that a block and a groove are formed in a tread, a sidewall and a bead portion, and a groove and a groove are formed in a boundary portion between a deep groove groove (1) and a transverse groove (2) At least one water discharge groove (3) connecting the bottom part (11) and the bottom part (22) of the transverse groove (2) is formed.

물배출홈(3)의 폭(a)은 0.8-1.2mm로 형성시키는 것이 바람직하다. 이러한 폭(a)넓이는 모세관현상에 의해 종그루브 저부(11)에 고인 물을 물배출홈(3)이 빨아 올릴 수 있도록 설계된 것이다. 또한 타이어가 주행하면서 지면과의 접촉에 따른 압력으로 그루브 내에 펌핑현상이 발생하게 된다. 이러한 펌핑현상에 의해 종그루 저부(11)에 물이 물배출홈(3)을 따라 보다 효과적으로 배출되게 된다. The width a of the water discharge groove 3 is preferably 0.8 to 1.2 mm. This width (a) is designed so that the water discharge groove 3 can suck up the water that has been lodged in the groove bottom 11 by the capillary phenomenon. Also, as the tire travels, a pumping phenomenon occurs in the groove due to the pressure due to contact with the ground. By this pumping phenomenon, water is more efficiently discharged along the water discharge groove 3 to the longitudinal bottom portion 11.

물배출홈(3)은 도 3에서 도시된 바와 같이, 그 상단의 횡단면(31)이 사각형 이고 하단으로 내려갈수록 사각형의 폭(a)은 일정하면서 높이(b)가 감소하되, 측면(32)과 바닥면(33)이 접하는 모서리(34)가 변곡점을 갖는 곡선 형상인 것이 바람직하다. 이러한 형상은 종그루브(1)의 저부(11)를 기준으로 종그루브(1) 내벽(12)의 경사보다 물배출홈(3)의 바닥면(33)의 경사를 더 완만하게 하여 상기 펌핑현상시 보다 효과적으로 물이 횡그루브(2)로 넘어갈 수 있도록 하기 위함이다.As shown in FIG. 3, the water discharge groove 3 has a rectangular cross-section at an upper end thereof, and the width a of the square is constant and the height b is decreased as the lower end is lowered. And the edge 34 where the bottom surface 33 is in contact with each other has a curved shape having an inflection point. This shape makes the inclination of the bottom surface 33 of the water discharge groove 3 more gentle than the inclination of the inner wall 12 of the longitudinal groove 1 based on the bottom portion 11 of the longitudinal groove 1, So that the water can be effectively transferred to the lateral grooves 2.

또는, 도 4에서 도시된 바와 같이 그 횡단면(35)을 단반경을 따라 이분된 타원의 형상으로 형성시킬 수 있다. 이러한 형상은 모세관 현상의 효율을 극대화하기 위함이다.Alternatively, as shown in FIG. 4, the cross-section 35 may be formed in the shape of an ellipse which is divided along a minor radius. This shape is to maximize the efficiency of the capillary phenomenon.

도 5는 본 발명의 차량용 타이어의 성능평가 실험결과를 나타낸 도표이다. 본 실험은 동일하게 제조된 타이어에 본 발명의 물배출홈을 추가로 카빙(carving)한 제품으로 평가를 한 결과 종래의 타이어보다 젖은 노면에서의 핸들링 성능과 제동성능이 향상된 것을 알 수 있다. 5 is a graph showing the results of performance evaluation tests of the vehicle tire of the present invention. In this experiment, as a result of evaluating the water discharge groove of the present invention as a carving product, the handling performance and the braking performance on the wet road surface are improved compared with the conventional tire.

이상에서 살펴본 바와 같이 본 발명에 따르면, 종방향 그루브의 저면에 고인 물을 효과적으로 배출하여 젖은 노면에서의 주행성능을 향상시키며, 아울러 수상주행(hydroplane) 현상을 방지할 수 있다.As described above, according to the present invention, it is possible to efficiently discharge water on the bottom surface of the longitudinal groove to improve the running performance on the wet road surface and to prevent hydroplane phenomenon.

Claims (4)

트레드와 사이드월 및 비드부로 구성되며, 트레드에 블록과 그루브가 형성된 것에 있어서, 깊은 종그루브와 상대적으로 깊이가 얕은 횡그루브의 경계부에 종그루브의 저부와 횡그루브의 저부를 잇는 하나 이상의 물배출홈을 형성시킨 것을 특징으로 하는 차량용 공기입 타이어.Wherein at least one of the tread and the sidewall and the bead portion has a block and a groove formed in the tread, wherein at a boundary between the deep sidewall and the transverse groove having a relatively shallow depth, Is formed on the outer peripheral surface of the pneumatic tire. 제 1항에 있어서, 물 배출홈의 형상은 그 상단의 횡단면이 사각형이고 하단으로 내려갈수록 사각형의 폭(a)은 일정하면서 높이(b)가 감소하되, 측면과 배면이 접하는 모서리(34)가 변곡점을 갖는 곡선 형상인 것을 특징으로 하는 차량용 공기입 타이어.The water discharge nozzle according to claim 1, wherein the shape of the water discharge groove has a rectangular cross section at an upper end thereof and a lower width (a) And a curved shape having an inflection point. 제 1항에 있어서, 물 배출홈의 형상은 그 횡단면이 단반경을 따라 이분된 타원의 형상인 것을 특징으로 하는 차량용 공기입 타이어.The pneumatic tire for a vehicle according to claim 1, wherein the shape of the water discharge groove is a shape of an ellipse whose cross section is divided along a minor axis. 제 1항 내지 제 3항 중 어느 한 항에 있어서, 물 배출홈의 폭(a)은 0.8-1.2mm인 것을 특징으로 하는 차량용 공기입 타이어. 4. The pneumatic tire for a vehicle according to any one of claims 1 to 3, wherein a width (a) of the water discharge groove is 0.8 to 1.2 mm.
KR1020060061907A 2006-07-03 2006-07-03 Pneumatic vehicle tire KR100728544B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200073427A (en) * 2018-12-14 2020-06-24 금호타이어 주식회사 Tread for Pneumatic Tire

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR980001003A (en) * 1996-06-01 1998-03-30 홍건희 Pneumatic tires improve drainage performance
KR20020004501A (en) * 2000-07-06 2002-01-16 조충환 Pneumatic Vehicle Tire

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR980001003A (en) * 1996-06-01 1998-03-30 홍건희 Pneumatic tires improve drainage performance
KR20020004501A (en) * 2000-07-06 2002-01-16 조충환 Pneumatic Vehicle Tire

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200073427A (en) * 2018-12-14 2020-06-24 금호타이어 주식회사 Tread for Pneumatic Tire
KR102159674B1 (en) * 2018-12-14 2020-09-24 금호타이어 주식회사 Tread for Pneumatic Tire

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