KR101101238B1 - Vehicle tire improved block member of the tread - Google Patents

Vehicle tire improved block member of the tread Download PDF

Info

Publication number
KR101101238B1
KR101101238B1 KR1020090130578A KR20090130578A KR101101238B1 KR 101101238 B1 KR101101238 B1 KR 101101238B1 KR 1020090130578 A KR1020090130578 A KR 1020090130578A KR 20090130578 A KR20090130578 A KR 20090130578A KR 101101238 B1 KR101101238 B1 KR 101101238B1
Authority
KR
South Korea
Prior art keywords
tread
block
tire
chamfering
present
Prior art date
Application number
KR1020090130578A
Other languages
Korean (ko)
Other versions
KR20110073828A (en
Inventor
이호종
Original Assignee
한국타이어 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한국타이어 주식회사 filed Critical 한국타이어 주식회사
Priority to KR1020090130578A priority Critical patent/KR101101238B1/en
Priority to CN2010105632442A priority patent/CN102107588A/en
Publication of KR20110073828A publication Critical patent/KR20110073828A/en
Application granted granted Critical
Publication of KR101101238B1 publication Critical patent/KR101101238B1/en

Links

Images

Classifications

    • 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
    • B60C11/01—Shape of the shoulders between tread and sidewall, e.g. rounded, stepped or cantilevered
    • 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
    • B60C11/0327—Tread patterns characterised by special properties of the tread pattern
    • B60C11/0332—Tread patterns characterised by special properties of the tread pattern by the footprint-ground contacting area of the tyre tread
    • 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
    • B60C11/1376—Three dimensional block surfaces departing from the enveloping tread contour
    • B60C11/1384—Three dimensional block surfaces departing from the enveloping tread contour with chamfered block corners
    • 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
    • B60C2200/00—Tyres specially adapted for particular applications
    • B60C2200/04—Tyres specially adapted for particular applications for road vehicles, e.g. passenger cars

Landscapes

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

Abstract

본 발명은 자동차용 타이어에 관한 것으로, 특히 트레드에 블록을 형성시켜서 된 타이어에 관한 것이다. 본 발명은 구동력을 향상시키기 위하여 트레드 중앙부 측의 블록은 진행방향 반대쪽 모서리를 모따기하여 만곡부를 형성시키고 숄더부측의 블록은 주행방향쪽 모서리를 모따기하여 만곡부를 형성시켜서 되는 타이어를 제공한다. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to automobile tires, and more particularly to tires formed by forming blocks on treads. The present invention provides a tire in which the block on the center portion of the tread is curved to chamfer the opposite side in the traveling direction to improve the driving force, and the block on the shoulder portion forms the curved portion by chamfering the corner in the running direction.

타이어, 블록, 모서리, 모따기, 라운딩 Tires, Blocks, Corners, Chamfer, Rounding

Description

트레드부를 개량한 자동차용 타이어{Vehicle tire improved block member of the tread}Vehicle tire improved block member of the tread}

본 발명은 자동차용 타이어에 관한 것으로, 특히 트레드에 블록을 형성시켜서 된 타이어에 관한 것이다. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to automobile tires, and more particularly to tires formed by forming blocks on treads.

자동차용 타이어는 접지면인 트레드에 구동성능과 제동성능을 향상시키기 위하여 그루브(Groove)를 형성시키며, 이러한 그루브의 설치 형태에 따라 리브형의 타이어와 러그형의 타이어 및 블록형의 타이어로 구분되는 바, 본 발명은 블록형의 타이어에 있어서의 블록의 형상 개량에 관한 것이다. Automotive tires form grooves to improve driving performance and braking performance on the tread, which is a ground plane, and are divided into rib-type tires, lug-type tires, and block-type tires according to the installation form of such grooves. The present invention relates to improving the shape of a block in a block tire.

주행되는 타이어는 구/제동 시, 지면과의 상대적인 미끌림에 의한 마찰력으로 구동력과 제동력을 제공한다. 타이어 트레드 블록은 이러한 상황 하에서, 차량 하중과 마찰력에 의해 변형을 하게 된다. The running tire provides driving force and braking force by frictional force due to relative sliding with the ground when driving / braking. In this situation, the tire tread block is deformed by the vehicle load and the friction force.

도1은 트레드 블록이 지면에 대해 미끌려 지는 상황을 표현한 것이다. 트레드 블록이 지면에 미끌려지면 접지 선단 에지 부분(a)엔 과도한 응력이 집중 되고, 리딩 에지 부 바로 후반부는 벤딩(b)에 의한 변형으로 지면과 접촉을 하지 못한다. 이처럼 선단부의 과도한 응력 집중과 접지 면적의 손실은 결과적으로 마찰력의 손실을 초래한다.  1 represents a situation in which the tread block is slipped with respect to the ground. When the tread block is slid to the ground, excessive stress is concentrated on the ground leading edge portion a, and the latter half of the leading edge portion is not contacted with the ground due to the deformation caused by the bending b. As such, excessive stress concentration at the tip and loss of ground area result in loss of friction.

지면과의 과도한 마찰력에 의한 트레드 블록의 변형을 막기 위해 리딩 에지 부분인 모서리 부분을 모따기 하거나 라운딩 처리하면, 블록의 변형을 줄이며 접지면 내에서 고른 압력 분포를 갖게 된다. 따라서 도 1의 경우보다 높은 마찰력을 확보할 수 있다. To prevent the deformation of the tread block due to excessive friction with the ground, chamfering or rounding the corners of the leading edges reduces the deformation of the block and has an even pressure distribution in the ground plane. Therefore, it is possible to ensure a higher friction than the case of FIG.

하지만, 모든 트레드 블록에 대해 모따기를 하면 접지 면적의 손실을 초래해 마찰력의 손실을 초래할 수 있다. 또한 각진 모서리는 젖은 노면에서의 제동시 수막을 깨거나, 눈길이나 진흙길에서 에징 효과에 유리하게 작용한다. 따라서 트레드 블록의 모따기는 에징 효과의 손실을 최소화 하면서 안정적인 접지를 확보할 수 있도록 적용되어야 한다.However, chamfering all tread blocks can result in loss of ground area and loss of friction. In addition, the sharp edges are advantageous for breaking the water film during braking on wet roads, or for edging effects on snow or muddy roads. Therefore, the chamfer of the tread block should be applied to secure stable ground while minimizing the loss of the edging effect.

이에 본 발명은 에징효과의 손실을 필요 최소한으로 하면서 블록의 벤딩에 의한 접지면적 감소 현상을 방지할 수 있는 타이어를 제공하여야 한다는 과제를 해결하고자 한다.Accordingly, the present invention is to solve the problem of providing a tire that can prevent the reduction of the ground area due to the bending of the block while minimizing the loss of the edging effect.

위와 같은 과제를 해결하기 위하여, 본 발명은, 트레드 중앙부 측의 블록은 진행방향쪽 모서리는 모따기를 하지 아니한 직각 상태를 유지하고 진행방향 반대쪽 모서리를 모따기하여 만곡부를 형성시키며, 숄더부측의 블록은 진행방향쪽 모서리를 모따기하여 만곡부를 형성시키고 진행방향반대쪽 모서리는 모따기를 하지 아니하여 직각상태를 유시시켜서 되는 타이어를 제공한다. In order to solve the above problems, the present invention, the block on the center of the tread, the corner in the traveling direction is maintained at a right angle without chamfering and chamfering the opposite corner in the travel direction to form a curved portion, the block on the shoulder side is in progress It provides a tire by chamfering the lateral edges to form a bent portion and the opposite edges in the direction of travel do not chamfer, thereby leaving a right angle.

위와 같은 본 발명은, 견인력이 많이 작용하는 중앙부측 블록에 있어서는 진행방향 반대쪽 모서리가 모따기 되어 있어 주행시 블록의 접지면이 굴곡 변형되지 아니하게 되어 주행시 접지면적이 감소되는 현상을 방지할 수 있으며, 반대로 제동시에는, 비록 중앙부의 블록에 있어서는 굴곡 변형이 발생하여 제동력의 손실을 가져온다 하더라도, 중앙부 블록의 제동력 기여도는 비교적 낮으므로 이를 참기로 하고, 제동력 기여도가 큰 숄더 부위의 블록의 진행방향측 모서리를 모따기함으로써 제동효과를 상승시키게 되는 효과가 있다. 즉, 본 발명은 견인력 기여도가 큰 중앙부측 블록은 더욱 큰 견인력을 발휘하게하고, 또 제동력에 기여도가 큰 숄더부 블록은 더욱 큰 제동력을 발휘하게 하여 블록의 기능이 효과적으로 발휘되게 하는 효과가 있다. In the present invention as described above, in the block of the central portion in which a large amount of traction force is applied, the opposite edge of the traveling direction is chamfered, so that the ground plane of the block is not bent and deformed during driving, and thus, the grounding area of the block can be reduced. During braking, although the bending deformation occurs in the central block resulting in a loss of braking force, the braking force contribution of the central block is relatively low. By chamfering, the braking effect is increased. That is, according to the present invention, the central block having a large traction force contributes to a greater traction force, and the shoulder block having a large contribution to a braking force exhibits a greater braking force to effectively exhibit the function of the block.

또한, 본 발명은, 접지면 내에 균일한 압력 분포로 마모 성능의 향상 효과를 기할 수 있다. 즉, 본 발명은 접지면 내의 균일한 압력 분포를 유도하여, 마모 성 능에도 유리하게 작용하게되는 효과가 있다.In addition, the present invention can provide an effect of improving wear performance with a uniform pressure distribution in the ground plane. That is, the present invention induces a uniform pressure distribution in the ground plane, and has an effect that advantageously acts on the wear performance.

타이어의 트레드부는 센터부와 쇼울더부로 나뉘어 볼 수 있는 바, 트레드 부의 센터부는 주로 구동에, 쇼울더부는 제동에 그 역할이 크다. 도2는 X축에 트레드의 횡방향에 따르는 위치를 표시하고 Y축에 구동 및 제동시에 있어서의 마찰에너지를 측정한 상태를 도시한 것이다. 이를 보면 양측 숄더 부위에 있어서는 제동시의 마찰에너지가 크고 중앙부측에서는 구동시의 마찰 에너지가 큰 것으로 나타난다. The tread portion of the tire can be divided into a center portion and a shoulder portion. The center portion of the tread portion is mainly driven, and the shoulder portion plays a large role in braking. Fig. 2 shows a state in which the position along the transverse direction of the tread is indicated on the X axis, and the friction energy at the time of driving and braking is measured on the Y axis. This shows that the friction energy at the time of braking is large in both shoulder portions and the friction energy at the time of driving is large in the central portion.

본 발명은 이와같이 중앙부측과 숄더부측이 상이한 기능을 가진다는 점에 기초한다. 그리하여 본 발명은 구동시의 마찰에너지가 큰 중앙부에 있어서는 구동력을 더욱 크게하고 제동시의 마찰에너지가 큰 숄더부에 있어서는 제동력을 더욱 크게 발휘할 수 있게 하는 타이어를 제공한다.The present invention is based on the fact that the central portion side and the shoulder portion side have different functions. Thus, the present invention provides a tire which enables the driving force to be greater in the central portion where the frictional energy at the time of driving is greater and the braking force can be more exerted at the shoulder portion where the frictional energy at the time of braking is larger.

첨부된 도면 도3은 타이어의 구름과 진행방향 개념도이다. 그리고 도4는 블록의 발췌 단면도로서 (가)는 구동시의 중앙부 블록을 도시하며, (나)는 제동시의 숄더부 블록을 나타낸다. 도5는 본 발명을 실시한 자동차용 타이어의 트레드부 일부 발췌 평면도이다. 본 발명을 첨부된 도면에 따라 설명한다. 3 is a conceptual diagram of rolling and traveling directions of a tire. 4 is an excerpt sectional view of the block, (a) shows a central block during driving, and (b) shows a shoulder block during braking. Figure 5 is a plan view of a part of the tread portion of the tire for automobile according to the present invention. The present invention will be described with reference to the accompanying drawings.

트레드(1)와 트레드(1) 양측의 사이드월(도면에 도시하지 않음) 및 사이드월 양단의 비드부(도면에 도시하지 않음)로 구성되고 트레드(1)의 접지면에 블록을 형성시키되 접지면에 형성시키는 블록이 중앙부(10)와 중앙부(10) 양측의 숄더부(11)로 나뉘어 설치되는 자동차용 타이어에 있어서, 본 발명은, 트레드(1) 중앙부(10) 측의 블록(2)은 진행방향쪽 모서리(21)는 모따기를 하지 아니한 직각 상태로 형성시키고 진행방향 반대쪽 모서리(22)는 모따기하여 만곡부로 형성시키며, 숄더부측(11)의 블록(3)은 진행방향쪽 모서리(31)는 모따기하여 만곡부로 형성시키고 진행방향반대쪽 모서리(32)는 모따기를 하지 아니하여 직각 상태로 형성시켜서 되는 타이어를 제공한다. Tread 1 and sidewalls (not shown) on both sides of the tread (1) and bead portions (not shown) on both sides of the sidewall and forming a block on the ground surface of the tread (1) In a vehicle tire in which a block formed on a surface is divided into a central portion 10 and a shoulder portion 11 on both sides of the central portion 10, the present invention provides a block 2 on a tread 1 center portion 10 side. The silver moving direction edge 21 is formed at right angles without chamfering, and the opposite direction edge 22 is chamfered to form a curved portion, and the block 3 of the shoulder portion side 11 is a moving direction edge 31. ) Provides a tire formed by chamfering the curved portion and the opposite direction of the direction 32 is formed at a right angle without chamfering.

위에서 모서리의 모따기라 함은 모서리를 둥글게 라운딩 처리함을 포함한다.Chamfering the corners from the top includes rounding the corners.

도 4에 도시된 바와 같이 각각의 만곡부를 형성한 부분은 구/제동시 받는 힘(c)(d)을 분산시켜 블록의 일그러짐을 방지하여 접지면적을 확보하게 된다.As shown in FIG. 4, the portion forming each curved portion distributes the force (c) (d) received during the ball / braking to prevent distortion of the block to secure a ground area.

도1은 주행시 트레드의 블록이 굴곡되는 상태 설명도1 is a diagram illustrating a state in which a block of a tread is bent while driving

도2는 주행시 타이어의 부분별 마찰 에너지 발생을 설명하는 그래프2 is a graph illustrating the generation of friction energy for each part of a tire during driving;

도3은 타이어의 구름과 진행방향 개념도3 is a conceptual view of the rolling clouds and the direction of the tire

도4는 블록의 발췌 단면도로서,4 is an excerpt cross-sectional view of the block;

(가)는 구동시의 중앙부 블록을 그리고  (A) draws the central block during operation

(나)는 제동시의 숄더부 블록을 나타낸다.  (B) shows the shoulder block during braking.

도5는 본 발명을 실시한 자동차용 타이어의 트레드부 일부 발췌 사시도 Figure 5 is a perspective view of a part of the tread portion of a vehicle tire according to the present invention

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

1. 트레드1. Tread

10. 중앙 10. Central

11, 숄더부 11, shoulder

2. 중앙부측 블록2. Center block

21. 진행방향쪽 모서리  21. Forward edge

22. 진행방향 반대쪽 모서리  22. Corner opposite direction of travel

3. 숄더부측 블록3. Shoulder block

31. 진행방향쪽 모서리  31. Forward edge

32. 진행방향반대쪽 모서리  32. Opposite edge of direction of travel

Claims (1)

트레드(1)와 트레드(1) 양측의 사이드월 및 사이드월 양단의 비드부로 구성되고 트레드(1)의 접지면에 블록을 형성시키되 접지면에 형성시키는 블록이 중앙부(10)와 중앙부(10) 양측의 숄더부(11, 12)로 나뉘어 설치되는 자동차용 타이어에 있어서, 트레드 중앙부 측의 블록은, 진행방향쪽 모서리가 모따기를 하지 아니한 직각이고 진행방향 반대쪽 모서리는 모따기하여 만곡부로 형성되며, 숄더부측의 블록은, 진행방향쪽 모서리가 모따기하여 만곡부로 형성되고 진행방향반대쪽 모서리는 모따기를 하지 아니한 직각인 것을 특징으로 하는 트레드부를 개량한 자동차용 타이어.The center portion 10 and the center portion 10 are formed of a tread 1 and sidewalls on both sides of the tread 1 and bead portions at both ends of the tread 1, and a block is formed on the ground plane of the tread 1, but the block is formed on the ground plane. In the automobile tire which is divided into the shoulder portions 11 and 12 on both sides, the block on the center of the tread is formed at a right angle without the corner in the traveling direction and is formed as a curved portion by chamfering the opposite corner in the traveling direction. The side block is a tire for an improved tread portion, characterized in that the corner in the running direction is formed as a curved portion by chamfering, and the opposite corner in the running direction is a right angle without chamfering.
KR1020090130578A 2009-12-24 2009-12-24 Vehicle tire improved block member of the tread KR101101238B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020090130578A KR101101238B1 (en) 2009-12-24 2009-12-24 Vehicle tire improved block member of the tread
CN2010105632442A CN102107588A (en) 2009-12-24 2010-11-29 Automobile tire with improved tire surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090130578A KR101101238B1 (en) 2009-12-24 2009-12-24 Vehicle tire improved block member of the tread

Publications (2)

Publication Number Publication Date
KR20110073828A KR20110073828A (en) 2011-06-30
KR101101238B1 true KR101101238B1 (en) 2012-01-04

Family

ID=44171914

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020090130578A KR101101238B1 (en) 2009-12-24 2009-12-24 Vehicle tire improved block member of the tread

Country Status (2)

Country Link
KR (1) KR101101238B1 (en)
CN (1) CN102107588A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140230980A1 (en) * 2011-09-29 2014-08-21 Michelin Recherche Et Technique S.A. Tire with tread having improved snow and dry traction

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010088679A (en) * 2001-08-21 2001-09-28 조충환 Tire

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4184469B2 (en) * 1998-02-18 2008-11-19 株式会社ブリヂストン Pneumatic radial tires for passenger cars
JP2001219715A (en) * 1999-01-13 2001-08-14 Bridgestone Corp Pneumatic tire with high maneuver stability
DE60224027T2 (en) * 2001-05-11 2008-11-27 Bridgestone Corp. TIRE
KR20090030798A (en) * 2007-09-21 2009-03-25 한국타이어 주식회사 Vehicle tire improved groove depth

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010088679A (en) * 2001-08-21 2001-09-28 조충환 Tire

Also Published As

Publication number Publication date
CN102107588A (en) 2011-06-29
KR20110073828A (en) 2011-06-30

Similar Documents

Publication Publication Date Title
US9764600B2 (en) Pneumatic tire for vehicle
WO2012098895A1 (en) Pneumatic tire
US9630453B2 (en) Pneumatic tire
JP4889277B2 (en) Pneumatic tire
JP5071924B2 (en) Pneumatic tire
CN105612064B (en) Include the tyre surface of directional tread decorative pattern
CN105365496A (en) Tread Kerf of Snow Tire
CN105829140B (en) Tread strip including the bending pattern block for carrying siping
KR101631758B1 (en) Kerf structure and pneumatic tire comprising the same
KR101467471B1 (en) Pneumatic tire
JP2012101745A (en) Pneumatic tire and metal mold for vulcanizing thereof
JP2011156941A (en) Tire
JP2010234895A (en) Winter tire
JP4735137B2 (en) Pneumatic tire
KR101943484B1 (en) Medium and long distance guide wheel tyre pattern
KR101101238B1 (en) Vehicle tire improved block member of the tread
JP2009214692A (en) Pneumatic tire
KR101190163B1 (en) Snow tire improved circumferential groove
JP2015016797A (en) Pneumatic tire
KR20110056798A (en) Vehicle tire improved kerf
KR20100048065A (en) Snow tire for vehicle
JP5551041B2 (en) Pneumatic tire
JP4425247B2 (en) Pneumatic tire
KR101048778B1 (en) Automotive tires that improve eye-rolling performance
JP2010083303A (en) Pneumatic tire

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee