KR200439278Y1 - Drum brake for automobile - Google Patents

Drum brake for automobile Download PDF

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Publication number
KR200439278Y1
KR200439278Y1 KR2020070000552U KR20070000552U KR200439278Y1 KR 200439278 Y1 KR200439278 Y1 KR 200439278Y1 KR 2020070000552 U KR2020070000552 U KR 2020070000552U KR 20070000552 U KR20070000552 U KR 20070000552U KR 200439278 Y1 KR200439278 Y1 KR 200439278Y1
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KR
South Korea
Prior art keywords
brake shoes
surface pressure
brake
pin
right brake
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KR2020070000552U
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Korean (ko)
Inventor
지현철
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상신브레이크주식회사
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Priority to KR2020070000552U priority Critical patent/KR200439278Y1/en
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Publication of KR200439278Y1 publication Critical patent/KR200439278Y1/en

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    • 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
    • F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
    • F16D51/16—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis
    • F16D51/18—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes
    • F16D51/20—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes extending in opposite directions from their pivots
    • F16D51/22—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes extending in opposite directions from their pivots mechanically actuated
    • 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
    • F16D65/091—Pivots or supporting members therefor for axially holding the segments
    • 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
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/22—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for pressing members apart, e.g. for drum brakes
    • 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
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
    • F16D2125/22—Mechanical mechanisms converting rotation to linear movement or vice versa acting transversely to the axis of rotation
    • F16D2125/28—Cams; Levers with cams
    • F16D2125/30—Cams; Levers with cams acting on two or more cam followers, e.g. S-cams
    • 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
    • F16D2127/00—Auxiliary mechanisms
    • F16D2127/02—Release mechanisms

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

Abstract

본 고안은 자동차용 드럼 브레이크에 관한 것으로, 좌우브레이크슈(4)(6)는 웨브(20) 상하에 갖는 결합홈(28)(30)을 통하여 앵커브라켓(2)을 연결하는 핀(8)과 롤러(18)가 결합되게 하고 또 좌우브레이크슈(4)(6)는 상하리턴스프링(12)(13)에 의해 연결되게 하여 브레이크작동이 원활하게 이루어지도록 하면서 상하리턴스프링(12)(13)을 분리시켜 주는 것으로 브레이크슈(4)(6)의 교체작업이 이루어질 수 있도록 하고, 림(22)에 부착고정되는 상하마찰재(24)(26)는 같은 크기로서 최대면압지점으로부터 상하에 부착고정되게 하여 브레이크작동시 상하마찰재(24)(26)로부터 균일한 면압을 면압불균형에 의한 소음이나 진동없이 우수한 제품력을 얻을 수 있도록 한 것이다.The present invention relates to a drum brake for automobiles, the left and right brake shoes (4) and (6) pins (8) for connecting the anchor bracket (2) through the coupling grooves (28, 30) that the upper and lower webs (20) And the roller 18 are coupled and the left and right brake shoes (4) and (6) are connected by the upper and lower return springs (12) and (13) so that the brake operation can be performed smoothly, the upper and lower return springs (12) and (13). ), So that the brake shoe (4) and (6) can be replaced, and the upper and lower friction materials (24) and (26) fixed to the rim (22) are the same size and are attached to the upper and lower points from the maximum surface pressure point. It is to be fixed so that the uniform surface pressure from the upper and lower friction material (24, 26) during brake operation to obtain excellent product power without noise or vibration caused by surface pressure imbalance.

Description

자동차용 드럼 브레이크{DRUM BRAKE FOR AUTOMOBILE}Drum brake for automobiles {DRUM BRAKE FOR AUTOMOBILE}

도 1 : 본 고안의 요부분해사시도1 is a partial perspective view of the present invention

도 2 : 본 고안 마찰재의 부착위치를 나타낸 요부정면구성도2: Main part front configuration diagram showing the attachment position of the subject innovation friction material

도 3 : 본 고안 마찰재의 면압분포를 나타낸 요부정면구성도Fig. 3 is a frontal front view showing the surface pressure distribution of the friction material of the present invention.

도 4 : 종래 고안의 요부분해사시도4 is a partial partial perspective view of a conventional design

도 5 : 종래 고안 마찰재의 부착위치를 나타낸 요부정면구성도5 is a front constitutional view showing the attachment position of the friction material designed in the prior art

도 6 : 종래 고안 마찰재의 면압분포를 나타낸 요부정면구성도6 is a main frontal configuration diagram showing the surface pressure distribution of the friction material designed in the prior art

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

(2)--앵커브라켓 (4)(6)--브레이크슈(2)-anchor bracket (4) (6)-brake shoe

(8)--핀 (10)--캠(8)-pin (10)-cam

(12)(13)--리턴스프링 (14)--핀공(12) (13)-Return Spring (14)-Pin Ball

(18)--롤러 (20)--웨브(18)-Roller (20)-Web

(22)--림 (24)(26)--마찰재(22)-Lim (24) (26)-Friction Ash

(28)(30)--결합홈 (32)(34)--연결공(28) (30)-Joining Groove (32) (34)-Connector

본 고안은 자동차용 드럼 브레이크에 관한 것으로서, 상세하게는 앵커브라켓으로부터 브레이크슈를 간단히 분리시켜 줄 수 있도록 하고 또 마찰재의 면압이 안정되게 분포할 수 있도록 한 것이다.The present invention relates to a drum brake for an automobile, and in particular, to easily separate the brake shoe from the anchor bracket and to allow the surface pressure of the friction material to be stably distributed.

일반적으로 자동차용 드럼 브레이크는 도 4에서와 같이 좌우브레이크슈(50)의 웨브(52) 하부에 갖는 핀공(54)을 통하여 앵커브라켓(56)에 핀(58)으로 회전가능케 연결되고 웨브(52) 상부에 갖는 핀공(60)에는 롤러(62)가 연결설치되어 앵커브라켓(56)의 상부중앙에 갖는 캠(64)과 접촉되게 함과 동시에 좌우브레이크슈(50) 사이에는 리턴스프링(66)을 연결설치하여 브레이크작동이 이루어지도록 구성되며, 림(68)에는 도 6에서와 같이 웨브(52)의 상하핀공(54)(60) 사이를 등분하여 그 중앙부(A)를 기점으로 상하 두개의 마찰재(70)(72)를 부착형성하되 하부마찰재(72)는 핀(58)으로 갈수록 얇게 형성하여 브레이크작동시 상하마찰재(70)(72)가 드럼과 전체적으로 접촉할 수 있도록 구성된다.In general, the automobile drum brake is rotatably connected to the anchor bracket 56 with a pin 58 through a pin hole 54 having a lower portion of the web 52 of the left and right brake shoes 50 as shown in FIG. 4. The roller 62 is connected to the pin hole 60 provided at the upper part thereof to contact the cam 64 at the upper center of the anchor bracket 56 and at the same time, the return spring 66 is disposed between the left and right brake shoes 50. It is configured to make the brake operation by connecting the, rim 68 is divided into the upper and lower pin holes 54, 60 of the web 52, as shown in Figure 6, the upper and lower two starting from the center (A) The friction materials 70 and 72 are attached to each other, but the lower friction material 72 is formed thinner toward the pins 58 so that the upper and lower friction materials 70 and 72 contact the drum as a whole during brake operation.

따라서 이러한 구조의 자동차용 드럼 브레이크는 마찰재의 마모로 좌우브레이크슈(50)의 교체를 요할 경우 핀(58)과 롤러(62)를 막고 있는 허브를 분리하고 핀(58)을 고정하는 고정플레이트(74)와 리턴스프링(66) 및 핀(58)과 롤러(62)를 분해해 주어야만 브레이크슈(50)가 앵커브라켓(56)으로부터 분리되므로 브레이크슈(50)의 교체작업이 매우 까다롭고 또 작업시간이 많이 소요될 뿐 아니라 이로 인하여 교체비용 상승을 가져오게 된다.Therefore, the drum brake for automobiles having such a structure is required to replace the left and right brake shoes 50 due to abrasion of the friction material, and to remove the hub blocking the pin 58 and the roller 62 and to fix the pin 58 ( The brake shoe 50 is separated from the anchor bracket 56 only after disassembling the 74, the return spring 66, the pin 58, and the roller 62. Therefore, the replacement of the brake shoe 50 is very difficult and difficult. Not only is it time-consuming, it also leads to increased replacement costs.

또한 좌우브레이크슈(50)가 갖는 상하마찰재(70)(72)가 웨브(52)의 상하핀공(54)(60) 사이에 갖는 중심선(A)을 기점으로 부착형성될 경우 마찰재(70)(72)의 최대면압지점(B)과는 약20°정도 어긋나게 되므로 하부마찰재(72)를 핀(58)으로 갈수록 적절히 얇게 형성해 주는 것으로 드럼과는 전체적인 접촉이 이루어질 수 있다 하겠으나, 도 6에서와 같이 마찰재(70)(72)가 갖는 면압분포는 상하비대칭을 이루게 됨은 물론 하부마찰재(72)의 일부구간이 갖는 면압은 적정이하로 나타나게 되므로 브레이크작동시 불균일한 면압분포에 의한 소음과 진동발생으로 승차감이 저하되는 등의 많은 문제점들이 있는 것이다.Also, when the upper and lower friction materials 70 and 72 of the left and right brake shoes 50 are attached to and formed from the center line A between the upper and lower pin holes 54 and 60 of the web 52, the friction material 70 ( Since the maximum surface pressure point B of 72) is shifted by about 20 °, the lower friction material 72 is formed as thin as the pin 58, so that the overall contact with the drum can be made. However, as shown in FIG. The surface pressure distribution of the friction materials 70 and 72 is up and down asymmetrical, as well as the surface pressure of some sections of the lower friction material 72 appears below the appropriate, so the noise and vibration caused by the nonuniform surface pressure distribution during brake operation, There are many problems such as this degradation.

본 고안의 목적은 수명을 다한 브레이크슈의 교환작업이 간단하고 신속하게 이루어질 수가 있고 또 브레이크 작동시 안정된 면압분포로 소음과 진동발생이 저감되어 우수한 승차감을 얻을 수 있음은 물론 브레이크의 안정된 제동력 확보로 안전사고를 예방해 줄 수가 있는 자동차용 드럼 브레이크를 제공하는데 있다.The purpose of the present invention is to replace the brake shoes that have reached the end of their life, which can be done quickly and easily, and the stable pressure distribution during brake operation reduces noise and vibration, resulting in excellent riding comfort and ensuring stable braking force of the brakes. To provide a car drum brake that can prevent safety accidents.

상기한 본 고안의 목적은 브레이크슈의 웨브 상하에 갖는 결합홈을 통하여 축핀과 롤러가 결합되게 하고 또 좌우브레이크슈 사이에 연결되는 상하리턴스프링에 의해 앵커브라켓과의 결합력을 유지하도록 하며, 상하마찰재는 최대면압지점을 기점으로 부착형성하여서 된 자동차용 드럼 브레이크에 의해 달성된다.The object of the present invention is to keep the coupling force with the anchor bracket by the upper and lower return springs connected between the shaft pin and the roller and the left and right brake shoes through the coupling grooves having the upper and lower webs of the brake shoe, and the upper and lower friction material This is achieved by an automobile drum brake which is formed by attaching the maximum surface pressure point as a starting point.

이하 본 고안의 바람직한 실시예를 첨부한 도면에 의거 상세히 설명하기로 하며, 다만 도면들 중 동일한 구성요소들은 가능한 동일부호로 기재하고, 관련된 공지기술이나 기능에 대한 구체적인 설명은 본 고안의 요지가 모호해지지 않도록 하기 위하여 생략하기로 한다.DETAILED DESCRIPTION Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, in which like elements are denoted by the same reference numerals as possible, and detailed descriptions of related known technologies or functions are unclear to the gist of the present invention. It will be omitted in order not to be supported.

도 1은 본 고안의 요부분해사시도로서, 본 고안은 앵커브라켓(2)을 사이에 두고 각각 대체로 반원형의 좌우브레이크슈(4)(6)가 핀(8)으로 대향되게 연결설치되어 캠(10)과 리턴스프링(12)(13)에 의해 브레이크작동이 이루어지도록 구성된다.1 is a partial exploded perspective view of the present invention, the present invention is a semi-circular left and right brake shoes (4) (6) are generally installed opposite the pin (8) with the anchor bracket (2) between the cam (10) And the return springs 12 and 13 are configured to brake.

본 고안에 이용되는 앵커브라켓(2)은 하부양측에 핀공(14)이 형성되고 상부 중앙에는 캠(10)이 연결설치되어 하부의 핀공(14)에 결합되는 핀(8)을 통하여 좌우브레이크슈(4)(6)가 연결되고 또 상부의 캠(10)은 좌우브레이크슈(4)(6)가 갖는 롤러(18)와 접촉하게 된다.The anchor bracket 2 used in the present invention has a pin hole 14 formed at both sides of the lower side, and a cam 10 is connected to the upper center and the left and right brake shoes through the pin 8 coupled to the lower pin hole 14. (4) (6) is connected and the upper cam 10 comes into contact with the roller 18 of the left and right brake shoes 4,6.

또한 좌우브레이크슈(4)(6)는 각각 나란한 두개의 웨브(20)와 상기 웨브(20) 외측에 용접형성되는 림(22) 및 상기 림(22) 외면에 부착고정되는 상하마찰재(24)(26)로 구성되는데, 이중 웨브(20)의 상하 단부에는 대체로 반원형으로 요입된 결합홈(28)(30)이 형성되고 상기 상하결합홈의 내측 인근에는 연결공(32)(34)이 형성된다.In addition, the left and right brake shoes (4) and (6) are two webs (20) side by side and the rim 22 welded to the outside of the web 20 and the upper and lower friction material 24 is fixed to the outer surface of the rim (22) It consists of a (26), the upper and lower ends of the double web 20 is formed in the coupling grooves 28, 30 concave in a semi-circular shape and the connecting hole 32, 34 is formed in the inner vicinity of the upper and lower coupling grooves do.

앵커브라켓(2)과 좌우브레이크슈(4)(6)의 결합은 앵커브라켓(2)의 핀공(14)에 삽입된 핀(16)의 양단부가 브레이크슈(4)(6)의 하부결합홈(30)에 결합되게 하고 브레이크슈(4)(6)의 상부결합홈(28)에는 롤러(18)가 결합되게 하여 상기 롤러(18)가 앵커브라켓(2)이 갖는 캠(10)과 접촉되게 한 상태에서 좌우브레이크슈(4)(6)의 상하에 형성된 좌우 연결공(32)(34) 사이에 각각 상하리턴스프링(12)(13)을 연결해 주는 것으로 완료된다.Anchor bracket (2) and the left and right brake shoes (4) (6) is coupled, the both ends of the pin 16 inserted into the pin hole 14 of the anchor bracket (2), the lower coupling groove of the brake shoes (4) The roller 18 to be coupled to the upper coupling groove 28 of the brake shoes 4 and 6 so that the roller 18 contacts the cam 10 of the anchor bracket 2. The upper and lower return springs 12 and 13 are respectively connected between the left and right connecting holes 32 and 34 formed above and below the left and right brake shoes 4 and 6 in a state in which the upper and lower brake shoes 4 and 6 are formed.

한편 좌우브레이크슈(4)(6)가 갖는 마찰재(24)(26)는 각각 림(22)의 상하에 리벳팅고정 형성되는데 도 2에서와 같이 상하마찰재(24)(26)는 같은 규격으로서 브 레이크작동시 핀(8)으로부터 약90°지점에 주어지는 최대면압지점(B)을 기점으로 하여 그 상하에 최소한의 간격을 두고 부착고정된다.Meanwhile, the friction materials 24 and 26 of the left and right brake shoes 4 and 6 are formed to rivet the upper and lower portions of the rim 22, respectively. The upper and lower friction materials 24 and 26 are the same size as shown in FIG. At the time of brake operation, attachment is fixed at minimum intervals above and below the maximum surface pressure point B, which is given about 90 ° from the pin 8.

본 고안은 좌우브레이크슈(4)(6)가 각각 웨브(20) 상하에 갖는 결합홈(28)(30)을 통하여 앵커브라켓(2)과 결합되나 상기 앵커브라켓(2)을 사이에 두고 좌우브레이크슈(4)(6)를 연결하는 상하리턴스프링(12)(13)에 의해 견고한 결합력을 유지하게 된다.In the present invention, the left and right brake shoes (4) and (6) are coupled to the anchor bracket (2) through the coupling grooves (28) and (30) each of which the web (20) is upper and lower, but the left and right with the anchor bracket (2) in between. The upper and lower return springs 12 and 13 connecting the brake shoes 4 and 6 maintain a firm coupling force.

또한 브레이크작동시 캠(10)의 회전으로 상기 캠(10)과 접촉하고 있는 롤러(18)에 의해 좌우브레이크슈(4)(6)가 핀(8)을 축으로 외측으로 회전하게 되면 상하 마찰재(24)(26)가 드럼과 접촉하여 제동이 이루어지게 되는데 이때 하부리턴스프링(13)은 좌우브레이크슈(4)(6)의 하부결합홈(30)과 핀(8)간의 결합력을 유지시켜 주게 되므로 좌우브레이크슈(4)(6)의 회전이 원활하게 이루어지게 된다.In addition, the upper and lower friction material when the left and right brake shoes 4 and 6 rotate the pin 8 outwardly by the roller 18 contacting the cam 10 by the rotation of the cam 10 during the brake operation. (24) (26) is in contact with the drum is made to brake, the lower return spring 13 is to maintain the coupling force between the lower coupling groove 30 and the pin (8) of the left and right brake shoes (4) (6) Since the left and right brake shoes (4) (6) is made to rotate smoothly.

또한 좌우브레이크슈(4)(6)는 도 3에서와 같이 림(22)의 외측에 갖는 상하마찰재(24)(26)가 각각 최대면압지점(B)을 사이에 두고 같은 크기로 부착고정되어 있어 브레이크작동시 상하마찰재(24)(26)의 면압분포가 균형있고 안정감있게 이루어지게 된다.In addition, the left and right brake shoes (4) and (6), as shown in Figure 3, the upper and lower friction material (24, 26) on the outside of the rim 22 are attached to the same size with the maximum surface pressure point (B), respectively, In the brake operation, the surface pressure distribution of the upper and lower friction materials 24 and 26 is made to be balanced and stable.

그리고 계속되는 브레이크작동으로 마찰재(24)(26)가 마모되어 브레이크슈(4)(6)의 교체를 요할 경우 허브등 다른 부품의 분해없이 좌우브레이크슈(4)(6)를 연결하는 상하리턴스프링(12)(13)을 분리해 주게 되면 단순히 웨브(20)의 결합홈(28)(30)을 통하여 핀(8)과 롤러(18)가 결합되어 있던 브레이크슈(4)(6)는 앵커브라켓(2)으로부터 곧바로 분리되므로 브레이크슈(4)(6)의 교체작업이 간단하고 신 속하게 이루어질 수가 있게 되는 것이다.The upper and lower return springs which connect the left and right brake shoes 4 and 6 without disassembling other parts such as hubs when the friction material 24 and 26 are worn out by the continuous brake operation and require replacement of the brake shoes 4 and 6. When the 12 and 13 are separated, the brake shoes 4 and 6 to which the pin 8 and the roller 18 are coupled are simply anchored through the coupling grooves 28 and 30 of the web 20. Since it is immediately separated from the bracket (2), the replacement of the brake shoe (4) (6) can be made simply and quickly.

이와 같이 본 고안은 좌우브레이크슈(4)(6)가 각각 웨브(20)의 상하에 갖는 결합홈(28)(30)을 통하여 앵커브라켓(2)과의 결합수단인 핀(16)과 롤러(18)와의 결합이 이루어지도록 하되 좌우브레이크슈(4)(6)를 연결하는 상하리턴스프링(12)(13)에 의해 결합력을 유지하도록 하므로서 핀(8)을 축으로 한 브레이크 작동이 원활하게 이루어지면서 상하리턴스프링(12)(13)을 분리시켜 주는 것으로 좌우브레이크슈(4)(6)가 앵커브라켓(2)으로부터 분리되므로 좌우브레이크슈(4)(6)의 교체작업이 간단하고 신속하게 이루어질 수가 있게 된다.Thus, the present invention is the pin 16 and the roller which is the coupling means with the anchor bracket (2) through the coupling grooves (28) and (30) having the left and right brake shoes (4) and (6), respectively, above and below the web (20). (18) is to be made, but the brake operation around the pin (8) smoothly while maintaining the coupling force by the upper and lower return springs (12, 13) connecting the left and right brake shoes (4), (6). By separating the upper and lower return springs (12) and 13, the left and right brake shoes (4) and (6) are separated from the anchor bracket (2), so the replacement of the left and right brake shoes (4) and (6) is simple and quick. Can be done.

또한 좌우브레이크슈(4)(6)의 림(22) 상하에 갖는 상하마찰재(24)(26)는 같은 크기로서 최대면압지점(B)을 기점으로 부착형성해 주므로서 상하마찰재(24)(26)의 면압이 상하균형있고 안정감있게 작용하게 되므로 브레이크작동시 면압분포의 불균형에 의한 소음이나 진동을 저감해 줄 수가 있어 차량의 승차감이 향상되고 또 안정된 제동력 확보로 안전사고를 예방해 줄 수가 있게 되는 등의 많은 효과가 있는 것이다.In addition, the upper and lower friction materials 24 and 26 having upper and lower rims 22 and 4 of the left and right brake shoes 4 and 6 are of the same size, and thus the upper and lower friction materials 24 and 26 are attached to each other. Since the surface pressure of) is balanced up and down and works stably, it can reduce noise and vibration due to the imbalance of the surface pressure distribution during brake operation, which improves the riding comfort of the vehicle and prevents safety accidents by securing a stable braking force. There are a lot of effects.

Claims (2)

삭제delete 외측 상하에 같은 크기의 마찰재가 부착고정되는 좌우브레이크슈를 웨브의 상하 단부에 갖는 결합홈을 통하여 앵커브라켓과 결합이 이루어지게 한 다음 상하리턴스프링에 의해 연결구성하여서 된 자동차용 드럼 브레이크에 있어서, 상기 좌우브레이크슈(4)(6)가 갖는 상하마찰재(24)(26)는 각각 좌우브레이크슈(4)(6)의 최대면압지점(B)을 기점으로 부착고정하여 구성함을 특징으로 하는 자동차용 드럼브레이크.In the drum brake for automobiles, which is made by engaging with the anchor bracket through the coupling groove having the upper and lower brake shoes at the upper and lower ends of the web, the friction material of the same size is fixed to the upper and lower, and then connected by the upper and lower return springs, The upper and lower friction materials 24 and 26 of the left and right brake shoes 4 and 6 are attached to and fixed to the maximum surface pressure point B of the left and right brake shoes 4 and 6, respectively. Automotive drum brakes.
KR2020070000552U 2007-01-11 2007-01-11 Drum brake for automobile KR200439278Y1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102192260A (en) * 2010-03-03 2011-09-21 陆美仙 Method for keeping inner and outer sides of brake shoes in balance and drum brake using same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102192260A (en) * 2010-03-03 2011-09-21 陆美仙 Method for keeping inner and outer sides of brake shoes in balance and drum brake using same

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