KR20020051431A - Bracke shoe having a protection scheme to the noise and abrasion - Google Patents

Bracke shoe having a protection scheme to the noise and abrasion Download PDF

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Publication number
KR20020051431A
KR20020051431A KR1020000080467A KR20000080467A KR20020051431A KR 20020051431 A KR20020051431 A KR 20020051431A KR 1020000080467 A KR1020000080467 A KR 1020000080467A KR 20000080467 A KR20000080467 A KR 20000080467A KR 20020051431 A KR20020051431 A KR 20020051431A
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KR
South Korea
Prior art keywords
piston
lining
contact
brake shoe
noise
Prior art date
Application number
KR1020000080467A
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Korean (ko)
Inventor
차항병
Original Assignee
밍 루
주식회사 만도
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Application filed by 밍 루, 주식회사 만도 filed Critical 밍 루
Priority to KR1020000080467A priority Critical patent/KR20020051431A/en
Publication of KR20020051431A publication Critical patent/KR20020051431A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/08—Bands, shoes or pads; Pivots or supporting members therefor for internally-engaging brakes
    • F16D65/09—Pivots or supporting members therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/0006—Noise or vibration control

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

PURPOSE: A brake shoe for a vehicle is provided to prevent noise and uneven wear by modifying the shape of the brake shoe contacted to a piston of a wheel cylinder. CONSTITUTION: A lining is contacted to a drum by a piston of a wheel cylinder for braking, and mounted in a rim(112). The rim of a brake shoe(100) is extended to the contact portion of the piston, and bent for surface contacting the piston. The piston of the wheel cylinder is contacted to an extended part(110). The outside of the lining is contacted to the inside of the drum with enlarging the contact area of the extended part and the piston. The extended part is surface contacted to the piston in pushing the piston of the wheel cylinder out, and thrust is transmitted evenly to the lining through the contact surface. Braking force is improved with extending the rim of the brake shoe. Uneven wear of the lining and noise are reduced with contacting to the piston stably.

Description

노이즈 및 편 마모 방지 구조를 갖는 차량용 브레이크슈{BRACKE SHOE HAVING A PROTECTION SCHEME TO THE NOISE AND ABRASION}BRAKEE SHOE HAVING A PROTECTION SCHEME TO THE NOISE AND ABRASION}

본 발명은 노이즈 및 마모 방지 구조를 갖는 차량용 브레이크슈에 관한 것으로, 특히, 휠실린더의 피스톤과 접촉되는 브레이크슈의 형상을 개선하여 노이즈 및 마모특성을 개선시킬 수 있도록 하는 노이즈 및 편 마모 방지 구조를 갖는 차량용 브레이크슈에 관한 것이다.The present invention relates to a brake shoe for a vehicle having a noise and abrasion prevention structure, and more particularly, to a noise and abrasion prevention structure for improving the shape of a brake shoe in contact with a piston of a wheel cylinder to improve noise and wear characteristics. It relates to a vehicle brake shoe having.

일반적으로 차량용 브레이크슈(brake shoe)는 휠실린더의 피스톤에 의해 브레이크 드럼과 접촉하여 제동력을 발생하는 부분이며, 림(lim)(또는 테이블(table))에는 라이닝(lining)이 리벳이나 접착제에 의해 부착된다.In general, a brake shoe for a vehicle is a portion that generates a braking force by contacting a brake drum by a piston of a wheel cylinder, and a lining is applied to a lim (or table) by rivets or adhesives. Attached.

다시 설명하면 드럼 브레이크의 제동력은 휠실린더의 액압 인가에 따라 피스톤이 밀려나오게 되며, 이때 피스톤면과 브레이크슈의 접촉부(web)의 수직면이 접촉하게 되고 접촉면을 통한 추력이 라이닝에 전달되어 드럼 사이의 마찰력 형성으로 제동력이 생성되는 것이다.In other words, the braking force of the drum brake is pushed out of the piston according to the hydraulic pressure of the wheel cylinder. At this time, the piston surface and the vertical surface of the contact portion (web) of the brake shoe come into contact with each other, and the thrust through the contact surface is transmitted to the lining. The braking force is generated by the formation of friction force.

종래 브레이크슈(10)는 도 1 도시와 같이 휠실린더(20)의 피스톤(21)면과 접촉부(web)(11)의 접촉은 완전 중앙을 통한 포인트 접촉이나 충분한 면접촉으로 통하여 항시 안정적인 압력인가가 보장되어야 함에도 불구하고 현재 이러한 제품이 상용되거나 또는 개발되어지고 있지 않는 실정이다. 종래 브레이크슈는 접촉부(11)가 임의 두께를 갖는 철판을 블랭킹해서 사용되는데, 접촉부(11)는 피스톤(21)의 접착면이 좁고 고르지 않으므로 제동시 압력이 인가되었을 때 피스톤(21) 면과 접촉부(11)는 불안정한 접촉을 하게 되어 결과적으로 라이닝(12)면과 드럼 접촉면의 안정적 마찰 형성을 기대하기 어려운 실정이다.In the conventional brake shoe 10, as shown in FIG. 1, the contact between the piston 21 surface of the wheel cylinder 20 and the contact portion web 11 is always stable through point contact through a full center or sufficient surface contact. Although these products must be guaranteed, no such products are currently available or developed. Conventional brake shoes are used by blanking an iron plate having an arbitrary thickness of the contact portion 11. Since the contact surface of the piston 11 is narrow and uneven, the contact portion of the piston 21 is in contact with the surface of the piston 21 when braking pressure is applied. 11 is an unstable contact, and as a result, it is difficult to expect stable friction formation between the lining 12 surface and the drum contact surface.

그래서 주행중(미 제동시) 노이즈(rattle noise)가 발생될 가능성이 높고, 라이닝(12)이 불안정하게 마모되며, 마찰력의 불균형 및 국부 집중에 의한 노이즈(squeal noise)가 발생될 수 있는 조건에의 노출 등을 야기 시킬 수 있다. 미설명 부호 22는 리턴스프링을 도시한 것이다.Therefore, there is a high possibility of generating noise during driving (not braking), uneven wear of the lining 12, and squeal noise due to unbalance of friction and local concentration. May cause exposure. Reference numeral 22 denotes a return spring.

본 발명은 상기와 같은 사정을 고려하여 이루어진 것으로, 그 목적은 휠실린더의 피스톤과 접촉되는 브레이크슈의 형상을 개선하여 노이즈 및 마모특성을 개선시킬 수 있도록 하는 노이즈 및 편 마모 방지 구조를 갖는 차량용 브레이크슈를 제공하는 것이다.The present invention has been made in consideration of the above circumstances, and an object thereof is a brake for a vehicle having a noise and one-piece wear protection structure to improve the noise and wear characteristics by improving the shape of the brake shoe in contact with the piston of the wheel cylinder. To provide a shoe.

본 발명은 상기와 같은 목적을 달성하기 위해 휠실린더의 피스톤에 의해 라이닝을 드럼의 내측면에 밀착되게 하여 제동되게 하는 것에 있어서, 상기 라이닝이 부착되는 브레이크슈의 림을 상기 피스톤이 접촉되는 부분에까지 연장 절곡하여 피스톤이 면접촉되게 하는 노이즈 및 마모 방지 구조를 갖는 차량용 브레이크슈를 제공함에 있다.The present invention is to close the lining to the inner surface of the drum by the piston of the wheel cylinder in order to achieve the above object in the braking, the rim of the brake shoe to which the lining is attached to the portion where the piston is in contact It is an object of the present invention to provide a brake shoe for a vehicle having an anti-noise and abrasion-proof structure for extending and bending the piston to be in surface contact.

도 1은 종래 브레이크슈의 설치 상태도,1 is an installation state diagram of a conventional brake shoe;

도 2는 본 발명에 따른 브레이크슈의 일부 일 측면도,2 is a side view of a part of a brake shoe according to the present invention;

도 3은 도 2의 일 측면도이다.3 is a side view of FIG. 2.

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

10,100 : 브레이크슈 11 : 접촉부10,100: brake shoe 11: contact portion

12,120 : 라이닝 20 : 휠실린더12,120: lining 20: wheel cylinder

21 : 피스톤 22 : 리턴스프링21: piston 22: return spring

110 : 연장부 112 : 림110: extension 112: rim

다음 본 발명을 도면에 의거하여 구체적으로 설명하겠다.Next, the present invention will be described in detail with reference to the drawings.

도 2 및 도 3 에는 본 발명에 따른 노이즈 및 마모 방지 구조를 갖는 차량용 브레이크슈가 도시되어 있는데, 이 브레이크슈(100)는 라이닝(120)이 부착되는 림(112)을 연장하여 절곡되게 하여서 된다.2 and 3 illustrate a brake shoe for a vehicle having a noise and abrasion preventing structure according to the present invention, which is to be bent by extending the rim 112 to which the lining 120 is attached.

상기 연장된 절곡부 즉, 연장부(110)에 휠실린더의 피스톤이 면접촉되게 하는 것으로, 연장부(110)는 간섭이 없는 범위에서 가능한 넓게 형성하여 피스톤 접촉을 횡방향으로 선 또는 면접촉을 유지시켜 드럼의 내측면과 라이닝(120)의 외측면 사이의 안정적 접촉을 유도하여 라이닝(120)의 안정적 마모 및 노이즈의 발생을 근본적으로 억제할 수 있게 하는 것이다.The piston of the wheel cylinder is in surface contact with the extended bent portion, that is, the extension portion 110, the extension portion 110 is formed as wide as possible in the range without interference to form a line or surface contact in the horizontal direction piston contact It is to maintain a stable contact between the inner surface of the drum and the outer surface of the lining 120 to be able to fundamentally suppress the occurrence of stable wear and noise of the lining 120.

다시 설명하면 라이닝(120)이 부착되는 브레이크슈(100)의 림(112)을 휠실린더의 피스톤이 접촉되는 부분에까지 연장 절곡하여 피스톤이 면접촉되게 하는 것이다.In other words, the rim 112 of the brake shoe 100 to which the lining 120 is attached is extended and bent to a portion where the piston of the wheel cylinder is in contact with the piston so that the piston is in surface contact.

이렇게 구성되는 본 발명은 유압에 의해 동작되는 휠실린더의 피스톤이 밀려나오게 되면, 피스톤과 연장부(110)가 면접촉하게 되어 접촉면을 통한 추력이 라이닝(120)에 전달되는데, 이때, 보다 균일하게 전달되어 라이닝(120)과 드럼의 내측면이 보다 안정적으로 접촉하게 되어 제동력의 향상 및 라이닝(120)이 보다 안정적으로 마모될 수 있고, 노이즈의 발생을 근본적으로 억제할 수 있게 되는 것이다.When the piston of the wheel cylinder operated by the hydraulic pressure is pushed out, the present invention configured as described above makes the piston and the extension part 110 come into surface contact, and the thrust through the contact surface is transmitted to the lining 120. Since the inner surface of the drum 120 and the lining 120 are more stably in contact with each other, the braking force and the lining 120 may be more stably worn, and the occurrence of noise may be fundamentally suppressed.

이상과 같이 본 발명에 의하면, 라이닝이 부착되는 브레이크슈의 림을 휠실린더의 피스톤이 면접촉되게 연장하되, 간섭이 없는 범위에서 가능한 넓게 형성하여 피스톤과 보다 안정적으로 접촉되게 함으로써, 라이닝의 안정적 마모 및 노이즈의 발생을 억제할 수 있게 되는 효과가 있는 것이다.As described above, according to the present invention, the rim of the brake shoe to which the lining is attached extends in contact with the piston of the wheel cylinder, but is formed as wide as possible in a range without interference, so that the piston can be more stably contacted with the lining for stable wear. And noise can be suppressed.

Claims (1)

휠실린더(20)의 피스톤(21)에 의해 라이닝(12)을 드럼의 내측면에 밀착되게 하여 제동되게 하는 것에 있어서,In the case where the lining 12 is brought into close contact with the inner surface of the drum by the piston 21 of the wheel cylinder 20 and braked, 상기 라이닝(12)이 부착되는 브레이크슈(100)의 림(112)을 상기 피스톤(21)이 접촉되는 부분에까지 연장 절곡하여 피스톤(21)이 면접촉되게 함을 특징으로 하는 노이즈 및 편 마모 방지 구조를 갖는 차량용 브레이크슈.The rim 112 of the brake shoe 100 to which the lining 12 is attached is extended and bent to a portion where the piston 21 is in contact so that the piston 21 is in surface contact, thereby preventing noise and piece wear. A brake shoe for a vehicle having a structure.
KR1020000080467A 2000-12-22 2000-12-22 Bracke shoe having a protection scheme to the noise and abrasion KR20020051431A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020000080467A KR20020051431A (en) 2000-12-22 2000-12-22 Bracke shoe having a protection scheme to the noise and abrasion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020000080467A KR20020051431A (en) 2000-12-22 2000-12-22 Bracke shoe having a protection scheme to the noise and abrasion

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KR20020051431A true KR20020051431A (en) 2002-06-29

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS556563U (en) * 1978-06-26 1980-01-17
JPS56165130U (en) * 1980-05-13 1981-12-07
JPS5776333A (en) * 1980-10-28 1982-05-13 Akebono Brake Ind Co Ltd Brake shoe of drum brake

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS556563U (en) * 1978-06-26 1980-01-17
JPS56165130U (en) * 1980-05-13 1981-12-07
JPS5776333A (en) * 1980-10-28 1982-05-13 Akebono Brake Ind Co Ltd Brake shoe of drum brake

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