KR100666072B1 - Wheel for vehicle tire - Google Patents

Wheel for vehicle tire Download PDF

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Publication number
KR100666072B1
KR100666072B1 KR1020050059828A KR20050059828A KR100666072B1 KR 100666072 B1 KR100666072 B1 KR 100666072B1 KR 1020050059828 A KR1020050059828 A KR 1020050059828A KR 20050059828 A KR20050059828 A KR 20050059828A KR 100666072 B1 KR100666072 B1 KR 100666072B1
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KR
South Korea
Prior art keywords
welding
disk
wheel
rim
installation hole
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KR1020050059828A
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Korean (ko)
Inventor
고길주
김만섭
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한국타이어 주식회사
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Priority to KR1020050059828A priority Critical patent/KR100666072B1/en
Priority to CNB2006100904868A priority patent/CN100554013C/en
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Publication of KR100666072B1 publication Critical patent/KR100666072B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
    • B60B3/04—Disc wheels, i.e. wheels with load-supporting disc body with a single disc body not integral with rim, i.e. disc body and rim being manufactured independently and then permanently attached to each other in a second step, e.g. by welding
    • B60B3/041—Disc wheels, i.e. wheels with load-supporting disc body with a single disc body not integral with rim, i.e. disc body and rim being manufactured independently and then permanently attached to each other in a second step, e.g. by welding characterised by the attachment of rim to wheel disc
    • 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
    • B60C29/00—Arrangements of tyre-inflating valves to tyres or rims; Accessories for tyre-inflating valves, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2310/00—Manufacturing methods
    • B60B2310/30—Manufacturing methods joining
    • B60B2310/302—Manufacturing methods joining by welding

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

A vehicle wheel is provided to prevent a crack from being generated and to expand durability span by dispersing stress intensity applied to a welding bond end unit with an absorbing groove. A vehicle wheel comprises a disk(2) inserted in a rim(1) having a valve installation hole(10); a welding bond end unit(31) formed at both sides of the valve installation hole by welding the contacting surface of the rim and the disk from one side of the valve installation hole to the other side of the valve installation hole; and an absorbing groove(25) installed on the disk on a part where the welding bond end unit is placed. The length of the absorbing groove is longer than the distance between welding bond end units, and the absorbing groove is formed long in the welding unit direction, and separated from the welding bond end unit. A circular expansion unit(250) is formed at both sides of the absorbing groove.

Description

자동차용 휠{Wheel for vehicle tire}Wheel for vehicle

도 1 은 일반적인 2피스 휠을 도시한 단면도 1 is a cross-sectional view showing a typical two-piece wheel

도 2 는 본 발명에 따른 휠을 도시한 단면도2 is a cross-sectional view of a wheel according to the present invention.

도 3 은 본 발명의 요부를 확대 도시한 단면도3 is an enlarged cross-sectional view showing the main part of the present invention;

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

1. 림 2. 디스크1. Rim 2. Disc

3. 용접부위 10. 밸브설치공3. Welding area 10. Valve installation work

25. 완충홈 250. 확장부25. Absorbing groove 250. Extension

본 발명은 자동차용 휠에 관한 것으로, 더욱 상세하게는 자동차용 휠이 림과 림의 내부에 용접 결합되는 디스크로 구성되는 2피스 휠에 있어서, 림과 디스크를 용접 결합시키는 용접 결합단부에서의 응력 집중을 분산 흡수시킬 수 있게 하여 크랙에 의한 휠의 내구수명 단축을 억제시킬 수 있도록 하는 자동차용 휠에 관한 것이다.The present invention relates to a wheel for an automobile, and more particularly, in a two-piece wheel consisting of a disk for which the automobile wheel is welded to the inside of the rim, the stress at the weld joint end for welding the rim and the disk are welded. The present invention relates to a wheel for automobiles, which makes it possible to disperse and concentrate concentration, thereby reducing the durability of the wheels due to cracks.

일반적으로 2피스 휠은 첨부된 도면 도 1 에 도시되는 바와 같이, 알루미늄 합금인 원재를 고압 프레스로 단조(forging)한 후에 롤을 사용하여 두께를 얇게 늘린(flow-forming) 다음 일정한 크기로 절단한 후 확장(expanding)과 스피닝(spinning) 공정을 거쳐서 림(1)을 형성하게 되고, 열적으로 팽창시킨 단조 림(1)에 주조 디스크(2)를 삽입하여 고정 시킨후(열박음 공정)림(1)과 디스크(2)를 용접하여 2피스 휠을 제조한다.In general, the two-piece wheel is forged into a high-pressure press of a raw material of aluminum alloy, as shown in the accompanying drawings shown in Figure 1, using a roll to thin thickness (flow-forming) and then cut to a constant size After the expansion (expanding) and spinning (spinning) process to form a rim (1), the casting disk (2) is inserted into the forged rim (1) thermally expanded (fixed shrinkage process) 1) and the disk (2) by welding to produce a two-piece wheel.

이러한 2피스 단조 휠은 일반 주조 휠에 비해 무게가 가벼워 차량 경량화가 가능하고, 기계적인 성질이 우수하며, 또한 외관이 수려하여 제품의 경쟁력이 뛰어나다.These two-piece forged wheels are lighter in weight than ordinary cast wheels, making the vehicle lighter, having excellent mechanical properties, and having a beautiful appearance, making the product more competitive.

그러나 2피스 단조 휠은 피로시험(fatigue test) 후 디스크(2)와 림(1)이 만나는 용접부위(3)에서 굽힘하중(bending moment)에 의한 피로균열이 전파되는 문제점이 있다.However, the two-piece forged wheel has a problem that fatigue cracks are propagated due to bending moments at the welding portion 3 where the disc 2 and the rim 1 meet after a fatigue test.

특히 이러한 피로균열은 디스크(2)와 림(1)을 용접결합시킬 때 발생되는 용접시작점과 용접이 끝나는 끝점 즉, 용접 결합단부(31)에서 집중되어 발생된다.In particular, such fatigue cracks are concentrated at the welding start point generated when the disk 2 and the rim 1 are welded and the end point at which the welding ends, that is, the weld coupling end 31.

통상 림(1)에는 타이어의 내부로 공기를 주입시키는 밸브가 설치되는 밸브설치공(10)이 형성되기 때문에 림(1)과 디스크(2)를 용접결합시킬 때 밸브설치공(10)의 일측에서 용접을 시작하여 용접설치공(10)의 타측에 용접이 끝나게 된다.Normally, the rim 1 is provided with a valve mounting hole 10 in which a valve for injecting air into the tire is formed, so that one side of the valve mounting hole 10 is welded to the rim 1 and the disk 2. Start welding at the end of welding to the other side of the welding installation hole (10).

이로 인하여 밸브설치공(10)의 양측에 용접결합단부(31)가 형성되기 마련이다.For this reason, the weld coupling end 31 is provided in both sides of the valve installation hole 10.

간혹 용접단부를 서로 오버랩시켜 용접결합단부가 형성되지 못하게 하는 용접 방법이 시도되기도 하지만 이와 같은 경우 용접부위가 밸브설치공(10)을 막게 되어 밸브설치공(10)의 위치를 변경시켜야 한다. 하지만 용접설치공(10)의 위치 또한 쉽게 변경시킬 수 없고, 오버랩되는 용접부위로 인하여 휠 바란스가 불량해 지는 문제점이 있어 불가피하게 밸브설치공(10)의 양측에서 용접이 끝나는 용접방법을 사용하고 있다. Sometimes a welding method is attempted to overlap the weld ends so that the weld ends are not formed, but in such a case, the weld site blocks the valve installation hole 10 so that the position of the valve installation hole 10 should be changed. However, the position of the welding installation hole 10 also cannot be easily changed, and there is a problem in that the wheel balance becomes poor due to overlapping welding parts. Therefore, welding is inevitably used at both sides of the valve installation hole 10. .

본 발명은 상기와 같은 종래의 문제점을 해결하기 위한 것으로, 본 발명은 림과 디스크를 용접 결합시키는 용접 결합단부에서의 응력 집중을 분산 흡수시킬 수 있게 하여 크랙에 의한 휠의 내구수명 단축을 억제시킬 수 있도록 한 자동차용 휠을 제공함에 그 목적이 있다.The present invention is to solve the conventional problems as described above, the present invention is to enable the dispersion of the stress concentration at the weld joint end for welding the rim and the disk to dissipate, thereby reducing the durability life of the wheel due to cracks Its purpose is to provide a wheel for an automobile.

본 발명은 상기와 같은 목적을 달성하기 위하여 다음과 같이 구성된다. 즉, 본 발명은 밸브설치공을 구비하는 림의 내측에 디스크가 삽입 설치되고, 밸브설치공의 일측에서 시작하여 밸브설치공의 타측에 용접이 끝나도록 림과 디스크의 접면이 용접결합되어 밸브설치공의 양측에 용접결합단부가 형성되는 것에 있어서, 상기 용접 결합단부가 위치되는 디스크의 주연에 용접결합단부에 집중되는 응력을 흡수 분산시키는 완충홈을 형성시켜 구성되는 것에 특징을 둔 것이다.The present invention is configured as follows to achieve the above object. That is, in the present invention, the disc is inserted into the inside of the rim having the valve installation hole, and the contact surface of the rim and the disk is welded to the valve installation hole starting from one side of the valve installation hole and ending at the other side of the valve installation hole. The weld end is formed on both sides of the ball, characterized in that formed in the peripheral edge of the disk in which the weld end is formed by forming a buffer groove for absorbing and dispersing the stress concentrated in the weld end.

이하에서는 첨부된 도면을 참조하여 본 발명의 바람직한 실시 예를 상세히 설명하기로 한다.Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention;

첨부된 도면 도 2 는 본 발명에 따른 휠을 도시한 단면도이고, 도 3 은 본 발명의 요부를 확대 도시한 단면도이다.2 is a cross-sectional view showing a wheel according to the present invention, Figure 3 is an enlarged cross-sectional view showing the main part of the present invention.

도 2 및 도 3 에 도시되는 바와 같이, 본 발명은 밸브설치공(10)을 구비하는 림(1)의 내측에 디스크(2)가 삽입 설치되고, 밸브설치공(10)의 일측에서 시작하여 밸브설치공(10)의 타측에 용접이 끝나도록 림(1)과 디스크(2)의 접면이 용접결합되어 밸브설치공(10)의 양측에 용접결합단부(31)가 형성되는 것에 있어서, 상기 용접결합단부(31)가 위치되는 디스크(2)상에 용접결합단부(31)에 집중되는 응력을 흡수 분산시키도록 용접결합단부(31)로부터 이격되고 용접결합단부(31) 사이의 거리를 초과하는 길이를 가지며 용접부 방향으로 기다란 완충홈(25)을 형성시켜 구성되는 것이다.As shown in Figures 2 and 3, the present invention is inserted into the disc 2 is installed inside the rim (1) having a valve mounting hole 10, starting from one side of the valve mounting hole 10 In the contact surface of the rim (1) and the disk (2) is welded to the other side of the valve mounting hole 10 is welded to form a weld joint end 31 on both sides of the valve mounting hole 10, Spaced apart from the weld end 31 and exceeding the distance between the weld end 31 so as to absorb and disperse the stress concentrated on the weld end 31 on the disk 2 on which the weld end 31 is located. It has a length to be formed by forming a long buffer groove 25 in the direction of the weld.

그리고 상기 완충홈(25)의 양측단부에 원형의 확장부(250)를 형성시켜 완충홈(25)의 단부에 응력이 집중되는 것을 분산시킬 수 있도록 구성된다.And the circular expansion portion 250 is formed at both ends of the buffer groove 25 is configured to disperse the concentration of stress on the end of the buffer groove (25).

또한 상기 완충홈(25)의 폭(W)은 2∼8㎜의 범위 내에서 형성시키고, 길이(L) 는 80∼120㎜의 범위 내에서 형성시켜 완충홈(25)이 가늘고 길다란 홈의 형상으로 형성시켜 구성되는 것이다.In addition, the width W of the buffer groove 25 is formed in the range of 2 to 8 mm, the length L is formed in the range of 80 to 120 mm so that the buffer groove 25 is thin and long in the shape of the groove It is formed by forming.

이와 같이 구성되는 본 발명은 림(1)과 디스크(2)를 용접 결합시키는 용접 결합단부(31)에 집중되는 응력이 디스크(2)에 형성된 완충홈(25)에 흡수 완충되는 동시에 분산되어 응력의 집중으로 인한 용접결합단부(31)에의 크랙 발생을 억제시키게 되는 것이다.According to the present invention configured as described above, the stress concentrated in the weld joint end 31 for welding the rim 1 and the disk 2 is absorbed and buffered in the buffer groove 25 formed in the disk 2 and is dispersed and stressed. It is to suppress the occurrence of cracks in the weld coupling end 31 due to the concentration of.

본 발명은 전술한 실시 예에 한정되지 않고 본 발명의 기술사상이 허용하는 범위 내에서 다양하게 변형하여 실시할 수가 있다. The present invention is not limited to the above embodiments, and various modifications can be made within the scope allowed by the technical idea of the present invention.

이상에서와 같이, 본 발명에 따르면 림과 디스크를 용접 결합시키는 용접결합단부에서의 응력 집중을 완충홈이 흡수 분산시킴에 따라 크랙의 발생을 억제시켜 휠의 내구수명을 대폭적으로 연장시킬 수 있는 효과가 있는 것이다.As described above, according to the present invention, as the buffer groove absorbs and disperses the stress concentration at the welded end for welding the rim and the disk, the cracks can be suppressed to significantly extend the durability life of the wheel. There is.

Claims (3)

밸브설치공(10)을 구비하는 림(1)의 내측에 디스크(2)가 삽입 설치되고, 밸브설치공(10)의 일측에서 시작하여 밸브설치공(10)의 타측에 용접이 끝나도록 림(1)과 디스크(2)의 접면이 용접결합되어 밸브설치공(10)의 양측에 용접결합단부(31)가 형성되는 것에 있어서, 용접결합단부(31)가 위치하는 부위의 디스크(2)상에 완충홈이 설치되고, 이 완충홈은 용접결합단부(31) 사이의 거리를 초과하는 길이를 가지며 용접부 방향으로 기다랗게 형성된 것으로 용접결합단부(31)로부터 이격 설치된 것을 특징으로 하는 자동차용 휠.The disc 2 is inserted into the inside of the rim 1 having the valve mounting hole 10 and starts at one side of the valve mounting hole 10 to finish welding at the other side of the valve mounting hole 10. In the contact surface of (1) and the disk (2) is welded and the welded end 31 is formed on both sides of the valve installation hole 10, the disk (2) of the site where the welded end 31 is located A buffer groove is installed on the vehicle wheel, and the buffer groove has a length exceeding the distance between the welded end portions 31 and is formed long in the direction of the welded portion. . 제 1 항에 있어서, 상기 완충홈(25)의 양측단부에 원형의 확장부(250)를 형성시켜 구성되는 것을 특징으로 하는 자동차용 휠.The wheel for an automobile according to claim 1, wherein circular expansion portions (250) are formed at both end portions of the buffer groove (25). 제 1 항 또는 제 2 항에 있어서, 상기 완충홈(25)의 폭(W)을 2∼8㎜의 범위 내에서 형성시키고, 길이(L)는 80∼120㎜의 범위 내에서 형성시켜 완충홈(25)이 가늘고 길다란 홈의 형상으로 형성시킨 것을 특징으로 하는 자동차용 휠.The buffer groove according to claim 1 or 2, wherein the width W of the buffer groove 25 is formed within a range of 2 to 8 mm, and the length L is formed within a range of 80 to 120 mm. An automobile wheel, characterized in that formed in the shape of a thin and long groove (25).
KR1020050059828A 2005-07-04 2005-07-04 Wheel for vehicle tire KR100666072B1 (en)

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KR1020050059828A KR100666072B1 (en) 2005-07-04 2005-07-04 Wheel for vehicle tire
CNB2006100904868A CN100554013C (en) 2005-07-04 2006-06-27 Automotive hub

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KR1020050059828A KR100666072B1 (en) 2005-07-04 2005-07-04 Wheel for vehicle tire

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109484082A (en) * 2018-11-07 2019-03-19 温州市力尔诺机车部件有限公司 A kind of high strength with low noise hub of motorcycle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07304301A (en) * 1994-05-11 1995-11-21 Nissan Motor Co Ltd Disk load wheel and manufacture thereof
JPH08150803A (en) * 1994-11-29 1996-06-11 Topy Ind Ltd Disc wheel
KR970015055A (en) * 1995-09-15 1997-04-28 코오타니 토모카츠 Wheel disk with non-uniform thickness
JPH11277228A (en) 1998-03-30 1999-10-12 Topy Ind Ltd Method of welding wheel for automobile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07304301A (en) * 1994-05-11 1995-11-21 Nissan Motor Co Ltd Disk load wheel and manufacture thereof
JPH08150803A (en) * 1994-11-29 1996-06-11 Topy Ind Ltd Disc wheel
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