KR20020009663A - Disc brake for vehicle - Google Patents

Disc brake for vehicle Download PDF

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Publication number
KR20020009663A
KR20020009663A KR1020000042985A KR20000042985A KR20020009663A KR 20020009663 A KR20020009663 A KR 20020009663A KR 1020000042985 A KR1020000042985 A KR 1020000042985A KR 20000042985 A KR20000042985 A KR 20000042985A KR 20020009663 A KR20020009663 A KR 20020009663A
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KR
South Korea
Prior art keywords
disk
caliper housing
pad
vehicle
carrier
Prior art date
Application number
KR1020000042985A
Other languages
Korean (ko)
Inventor
장세인
Original Assignee
밍 루
주식회사 만도
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Publication date
Application filed by 밍 루, 주식회사 만도 filed Critical 밍 루
Priority to KR1020000042985A priority Critical patent/KR20020009663A/en
Publication of KR20020009663A publication Critical patent/KR20020009663A/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
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
    • F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
    • F16D55/226—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc 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
    • F16D65/00—Parts or details
    • F16D65/005—Components of axially engaging brakes not otherwise provided for
    • F16D65/0068—Brake calipers
    • 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
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D2055/0004—Parts or details of disc brakes
    • F16D2055/0016—Brake calipers

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

Abstract

PURPOSE: A disk brake of a vehicle is provided to prevent uneven wear of a frictional pad, and to reduce noise and vibration by forming distribution of pressure against the frictional pad evenly with modifying the structure of a caliper housing. CONSTITUTION: A vehicle disk brake is composed of a disk(10) rotating with a wheel of the vehicle; two pad plates(11,12) arranged at both sides of the disk, and attached to frictional pads(11a,12a); a caliper housing(30) having a cylinder part(31) with a piston(34) for pressing pad plates; a carrier(20) supporting pad plates and the caliper housing; assembling holes formed at both sides of the carrier to move the caliper housing forward or backward against the carrier; and guide rods inserted to the assembling holes, and combined with the caliper housing. Frictional pads of pad plates are pressed on the disk with distorting by inclining the caliper housing against the surface of the disk. The caliper housing is deformed with rotating the disk in braking, and frictional pads are pressed on the disk parallel. Uneven wear is prevented, and noise and vibration are reduced with forming distribution of pressure against frictional pads evenly.

Description

차량용 디스크브레이크{DISC BRAKE FOR VEHICLE}Automotive Disc Brake {DISC BRAKE FOR VEHICLE}

본 발명은 차량용 디스크브레이크에 관한 것으로, 더욱 상세하게는 마찰패드에 걸리는 압력분포를 균일하게 하여 마찰패드의 편마모를 방지하고 소음 및 진동을 줄일 수 있도록 한 차량용 디스크브레이크에 관한 것이다.The present invention relates to a vehicle disc brake, and more particularly, to a vehicle disc brake to uniformly distribute the pressure applied to the friction pad to prevent uneven wear of the friction pad and to reduce noise and vibration.

일반적으로 디스크브레이크는 차량의 휠과 함께 회전되는 디스크의 양면에 마찰패드를 강제 압착시켜 마찰력을 발생시키고, 이 마찰력에 의해 디스크의 회전이 멈추도록 함으로써 차량을 제동시키는 장치이다.In general, the disc brake is a device for braking the vehicle by forcibly compressing the friction pads on both sides of the disc rotated together with the wheel of the vehicle to generate a friction force, and stopping the rotation of the disc by the friction force.

도 1은 이러한 종래 디스크브레이크의 개략적인 구성을 보인 단면도이다. 이를 참조하면, 디스크브레이크에는 차륜과 함께 회전하는 디스크(1)의 양측에 마찰패드(2a,3a)가 부착된 한 쌍의 패드플레이트(2,3)가 구비되고, 이들 패드플레이트(2,3)를 디스크(1) 쪽으로 가압하는 캘리퍼하우징(4)이 마련된다. 이때 캘리퍼하우징(4)은 일측 내부에 피스톤(5)이 설치된 실린더부(4a)와, 실린더부(4a)의 타측에 마련되어 맞은편 패드플레이트(3)의 이면을 지지하는 핑거부(4b), 그리고 핑거부(4b)의 상단과 실린더부(4a)의 상단을 일체로 연결하는 연결부(미도시)로 이루어진다.1 is a cross-sectional view showing a schematic configuration of such a conventional disc brake. Referring to this, the disc brake is provided with a pair of pad plates 2 and 3 having friction pads 2a and 3a attached to both sides of the disc 1 rotating together with the wheels. Is provided with a caliper housing 4 for urging the disk 1 toward the disk 1. In this case, the caliper housing 4 has a cylinder portion 4a provided with a piston 5 inside one side, and a finger portion 4b provided on the other side of the cylinder portion 4a to support the back surface of the opposite pad plate 3, And it consists of a connecting portion (not shown) for connecting the upper end of the finger portion 4b and the upper end of the cylinder portion 4a integrally.

이러한 디스크브레이크는 캘리퍼하우징(4)의 실린더부(4a) 내부로 제동유압이 공급되면 피스톤(5)이 "A"방향으로 전진하면서 일측 패드플레이트(2)를 가압하고, 켈리퍼하우징(4)의 실린더부(4a)와 핑거부는 피스톤(5)의 운동과 반대인 "B"방향으로 이동하면서 타측 패드플레이트(3)를 가압함으로써 제동을 수행한다.When the disc brake is supplied with the braking hydraulic pressure into the cylinder portion 4a of the caliper housing 4, the piston 5 advances in the " A " direction, pressurizes the one side pad plate 2, and the caliper housing 4 The cylinder portion 4a and the finger portion perform braking by pressing the other pad plate 3 while moving in the " B " direction opposite to the movement of the piston 5.

그러나 이와 같은 구성의 종래 디스크브레이크는 제동이 이루어질 때 디스크(1)가 패드플레이트(2,3)의 가압방향과 수직방향(C방향)으로 고속으로 회전하는 상태이기 때문에, 두 패드플레이트(2,3)를 가압하는 캘리퍼하우징(4)에 큰 모멘트(moment)가 걸려서 켈리퍼하우징(4)이 미세하게 나마 W의 방향으로 회전하는 현상이 발생하는데, 이러한 현상으로 인해 마찰패드(2a,3a)의 편마모가 발생하고 제동소음 및 진동이 커지는 문제가 있었다.However, in the conventional disc brake having such a configuration, since the disc 1 rotates at a high speed in the pressing direction and the vertical direction (C direction) of the pad plates 2 and 3, the two pad plates 2, 3) A large moment is applied to the caliper housing 4 for pressing the caliper housing 4 so that the caliper housing 4 is slightly rotated in the direction of W. This phenomenon causes the friction pads 2a and 3a to There was a problem of uneven wear and increased braking noise and vibration.

즉 이러한 현상으로 인해 피스톤(5)을 통해 가압되는 일측 마찰패드(2a)에 걸리는 면압분포는 P1의 양상을 보이고, 핑거부(4b)를 통해 가압되는 타측 마찰패드(3b)에 걸리는 면압분포는 반대로 P2의 양상을 보이기 때문에, 마찰패드(2a,3a)의 편마모가 발생할 뿐만 아니라, 국부적인 하중의 집중으로 소음과 진동이 발생하는 문제가 있었다.That is, due to this phenomenon, the surface pressure distribution applied to the one side friction pad 2a pressed through the piston 5 shows an aspect of P1, and the surface pressure distribution applied to the other side friction pad 3b pressed through the finger portion 4b is On the contrary, since P2 exhibits an aspect, there is a problem that not only uneven wear of the friction pads 2a and 3a occurs, but also noise and vibration occur due to concentration of local loads.

본 발명은 이와 같은 문제점을 해결하기 위한 것으로, 본 발명의 목적은 캘리퍼하우징의 설치구조 개선을 통해 마찰패드에 걸리는 면압분포가 균일해 지도록 하여 마찰패드의 편마모를 방지할 뿐만 아니라 소음 및 진동이 줄어들도록 하는 차량용 디스크브레이크에 관한 것이다.The present invention is to solve such a problem, an object of the present invention is to improve the installation structure of the caliper housing to uniform the pressure distribution applied to the friction pad to prevent the wear of the friction pad as well as reduce noise and vibration. The present invention relates to a vehicle disc brake.

도 1은 종래 차량용 디스크브레이크의 구성을 보인 단면도로, 마찰패드에 걸리는 면압분포를 보인 것이다.1 is a cross-sectional view showing a configuration of a conventional vehicle disc brake, showing a surface pressure distribution applied to the friction pad.

도 2는 본 발명에 따른 차량용 디스크브레이크의 구성을 보인 분해 사시도이다.2 is an exploded perspective view showing the configuration of a vehicular disk brake according to the present invention.

도 3은 본 발명에 따른 차량용 디스크브레이크의 구성을 보인 횡단면도이다.3 is a cross-sectional view showing the configuration of a vehicular disk brake according to the present invention.

도 4는 본 발명에 따른 차량용 디스크브레이크의 구성을 보인 단면도로, 마찰패드에 걸리는 면압분포를 보인 것이다.Figure 4 is a cross-sectional view showing the configuration of a vehicle disk brake according to the present invention, showing a surface pressure distribution applied to the friction pad.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10: 디스크, 11,12: 패드플레이트,10: disc, 11, 12: pad plate,

11a,12a: 마찰패드, 20: 캐리어,11a, 12a: friction pad, 20: carrier,

21: 안내홈, 22: 판스프링,21: guide groove, 22: leaf spring,

23: 결합공, 30: 캘리퍼하우징,23: coupling hole, 30: caliper housing,

31: 실린더부, 32: 핑거부,31: cylinder portion, 32: finger portion,

33: 연결부, 34: 피스톤,33: connection, 34: piston,

35: 가이드로드.35: Guide rod.

상기의 목적을 달성하기 위한 본 발명에 따른 차량용 디스크브레이크는, 차량의 휠과 함께 회전하는 디스크, 상기 디스크의 양측에 배치되며 그 일면에 마찰패드가 부착된 한 쌍의 패드플레이트, 상기 두 패드플레이트를 가압하도록 피스톤이 설치된 실린더부를 구비하는 캘리퍼하우징, 상기 두 패드플레이트와 상기 캘리퍼하우징을 지지하는 캐리어, 상기 캘리퍼하우징이 상기 캐리어에 진퇴 가능하게 결합되도록 상기 캐리어의 양측에 형성된 결합공과 이 결합공에 끼워진 상태로 상기 캘리퍼하우징 양측에 결합된 가이드로드를 포함하는 차량용 디스크브레이크에 있어서, 제동동작이 수행될 때 상기 마찰패드의 표면에 작용되는 면압분포가 균일해지도록 상기 캘리퍼하우징이 상기 디스크 표면과 수직을 이루는 연장선으로부터 상기 디스크의 회전 반대방향으로 소정각도 틀어지게 설치된 것을 특징으로 한다.Disc brake for a vehicle according to the present invention for achieving the above object, a disk that rotates with the wheel of the vehicle, a pair of pad plates disposed on both sides of the disk and a friction pad is attached to one surface, the two pad plates A caliper housing having a cylinder portion provided with a piston to pressurize the carrier, a carrier supporting the two pad plates and the caliper housing, a coupling hole formed at both sides of the carrier such that the caliper housing is retractably coupled to the carrier, In a disc brake for a vehicle including guide rods coupled to both sides of the caliper housing in a fitted state, the caliper housing is perpendicular to the surface of the disk so that the surface pressure distribution acting on the surface of the friction pad is uniform when the braking operation is performed. Rotation of the disk from an extension line It is characterized by being installed at a predetermined angle in the opposite direction.

또한 본 발명은 상기 캘리퍼하우징이 평소 틀어진 상태를 유지하도록 상기 가이드로드와 상기 결합공이 상기 디스크 표면과 수직을 이루는 연장선으로부터 상기 디스크의 회전 반대방향으로 소정각도 틀어지게 설치된 것을 특징으로 한다.In addition, the present invention is characterized in that the guide rod and the coupling hole are installed at a predetermined angle in a direction opposite to the rotation of the disk from an extension line perpendicular to the surface of the disk so that the caliper housing maintains the usual twisted state.

이하에서는 본 발명에 따른 바람직한 실시 예를 첨부 도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

본 발명에 따른 차량용 디스크브레이크는 도 2와 도 3에 도시된 바와 같이, 차량의 바퀴와 함께 회전하는 디스크(10)의 양측에 마찰패드(11a,12a)가 부착된 한 쌍의 패드플레이트(11,12)를 구비한다. 이때 패드플레이트(11,12)는 차량의 너클부(미도시)에 고정되는 캐리어(20)에 지지되는데, 각 패드플레이트(11,12)의 양단에 형성된 돌출턱(11b,12b)이 이와 대응하는 케리어(20)의 양측에 형성된 안내홈(21)에 끼워짐으로써 패드플레이트(11,12)가 디스크(10) 쪽으로 진퇴 가능하게 지지된다. 부호 22는 캐리어(20)의 양측 안내홈(21)에 끼워져서 패드플레이트(11,12)의 돌출턱(11b,12b)을 미끄럼 가능하게 지지하는 동시에 패드플레이트(11,12)의 진동을 방지하는 패드스프링이다.As shown in FIG. 2 and FIG. 3, a vehicle disk brake according to the present invention has a pair of pad plates 11 having friction pads 11a and 12a attached to both sides of the disk 10 rotating together with the wheels of the vehicle. , 12). In this case, the pad plates 11 and 12 are supported by a carrier 20 fixed to a knuckle portion (not shown) of the vehicle, and protruding jaws 11b and 12b formed at both ends of the pad plates 11 and 12 correspond to this. The pad plates 11 and 12 are supported by the disc 10 so as to be able to move forward and backward by being fitted into guide grooves 21 formed on both sides of the carrier 20. Reference numeral 22 is inserted into the guide grooves 21 on both sides of the carrier 20 to slidably support the protruding jaws 11b and 12b of the pad plates 11 and 12 while preventing the vibration of the pad plates 11 and 12. It is a pad spring.

또한 캐리어(20)의 외측에는 디스크(10) 양측에 배치된 두 패드플레이트(11,12)를 디스크(10) 쪽으로 가압하는 캘리퍼하우징(30)이 마련된다. 이때 캘리퍼하우징(30)의 일측에는 일측 패드플레이트(11)를 디스크(10) 쪽으로 가압하도록 피스톤(34)이 설치된 실린더부(31)가 마련되고, 실린더부(31)의 타측에는 맞은편 패드플레이트(12)의 이면을 지지하는 핑거부(32)가 마련된다. 그리고 핑거부(32)의 상단과 실린더부(31)의 상단에는 이들을 연결하는 연결부(33)가 마련된다. 즉 켈리퍼하우징(30)은 실린더부(31), 핑커부(32), 연결부(33)가 일체로 구성된다.In addition, the outer side of the carrier 20 is provided with a caliper housing 30 for pressing the two pad plates (11, 12) disposed on both sides of the disk 10 toward the disk (10). At this time, one side of the caliper housing 30 is provided with a cylinder portion 31 provided with a piston 34 to press the one side pad plate 11 toward the disk 10, the other side of the cylinder portion 31 is opposite the pad plate The finger part 32 which supports the back surface of 12 is provided. And the upper end of the finger portion 32 and the upper end of the cylinder portion 31 is provided with a connecting portion 33 for connecting them. In other words, the caliper housing 30 includes a cylinder part 31, a pinker part 32, and a connection part 33.

또한 캘리퍼하우징(30)의 양측에는 캐리어(20)에 미끄럼 가능하게 결합될 수 있도록 하는 가이드로드(35)가 마련되고, 이 가이드로드(35)는 캐리어(20)의 양측에 형성된 결합공(23)에 끼워져 결합된다.In addition, guide rods 35 are provided at both sides of the caliper housing 30 to be slidably coupled to the carrier 20, and the guide rods 35 are coupling holes 23 formed at both sides of the carrier 20. Are fitted)

한편 본 발명은 이러한 디스크브레이크를 구성함에 있어서 캘리퍼하우징(30)이 디스크(10)의 회전 반대방향으로 소정각도 틀어지게 설치됨으로써 제동동작시 마찰패드(11a,12a)의 전면에 가해지는 면압이 전체적으로 균일해 질 수 있도록 한 것이 특징이다.Meanwhile, in the present invention, the caliper housing 30 is rotated at a predetermined angle in a direction opposite to the rotation of the disk 10 in configuring the disk brake, so that the surface pressure applied to the front surfaces of the friction pads 11a and 12a during the braking operation as a whole. It is characterized by being uniform.

이는 제동동작시 캘리퍼하우징(30)에 걸리는 모멘트(moment)에 의해 켈리퍼하우징(30)이 디스크(10)의 회전 방향으로 소정구간 회전 변형하는 특성을 감안한 것이다. 즉 켈리퍼하우징(30)을 미리 회전 변위 만큼 디스크(10)의 회전 반대방향으로 회전시켜둠으로써 실제 제동 동작시에 캘리퍼하우징(30)의 중심선(D)과 디스크(10)의 표면이 수직상태를 이루어 마찰패드(11a,12a)의 면압분포가 균일해 지도록 한 것이다.This is in consideration of the characteristic that the caliper housing 30 rotates and deforms a predetermined section in the rotational direction of the disk 10 by a moment applied to the caliper housing 30 during the braking operation. That is, the caliper housing 30 is rotated in the opposite direction of rotation of the disk 10 by the rotational displacement in advance so that the center line D of the caliper housing 30 and the surface of the disk 10 are perpendicular to each other during the actual braking operation. The surface pressure distribution of the friction pads 11a and 12a is made uniform.

이를 위해 캐리어(30)의 양측에 형성된 결합공(23)의 중심선(F)이 디스크(10)의 표면과 수직을 이루는 연장선(G)으로부터 디스크(10)의 회전 반대방향으로 소정각도(θ) 틀어지게 형성된다. 따라서 이에 결합되는 가이드로드(35)가 연장선 G와 틀어진 상태를 유지하고 켈리퍼하우징(30)의 중심선(D)도 연장선 E로부터 소정각도 틀어진 상태를 유지한다. 또한 켈리퍼하우징(30)의 피스톤(34)과 핑거부(32)에 의해 가압되는 두 패드플레이트(11,12)도 틀어진 상태가 된다. 이때 캐리어(20)에 지지되는 두 패드플레이트(11,12)의 원활한 진퇴를 위해서는 캐리어(20) 양측의 안내홈(21)도 캘리퍼하우징(30)의 중심선(D)과 평행을 이루도록 하는 것이 바람직하다.To this end, the center line F of the coupling hole 23 formed at both sides of the carrier 30 is a predetermined angle θ in the direction opposite to the rotation of the disk 10 from an extension line G perpendicular to the surface of the disk 10. It is formed distorted. Therefore, the guide rod 35 coupled thereto maintains a state misaligned with the extension line G, and the center line D of the caliper housing 30 also maintains a predetermined angle from the extension line E. FIG. In addition, the two pad plates 11 and 12 pressed by the piston 34 and the finger part 32 of the caliper housing 30 are also twisted. In this case, in order to smoothly retract the two pad plates 11 and 12 supported by the carrier 20, the guide grooves 21 at both sides of the carrier 20 may also be parallel to the center line D of the caliper housing 30. Do.

이와 같이 구성된 본 발명에 따른 차량용 디스크브레이크의 동작을 설명하면 다음과 같다.Referring to the operation of the vehicular disk brake according to the present invention configured as described above are as follows.

운전자가 브레이크 페달을 밟아 캘리퍼하우징(30)의 실린더부(31)로 브레이크액이 유입되면, 실린더부(31) 내부에 제동압이 형성된다. 이때 피스톤(34)은 도 4의 "A"방향으로 전진하면서 일측 패드플레이트(11)를 가압한다. 이와 동시에 켈리퍼하우징(30)의 실린더부(31)는 유압의 반작용에 의해 피스톤(34)의 운동과 반대인 "B"방향으로 이동되고, 또한 이와 연결된 연결부(33)와 핑거부(32)가 "B"방향으로 이동되면서, 핑거부(32)를 통해 타측 패드플레이트(12)의 이면이 역방향으로 가압된다. 따라서 양측의 두 패드플레이트(11,12)는 디스크(10)를 가압하여 차량의 제동을 수행한다.When the driver presses the brake pedal and the brake fluid flows into the cylinder portion 31 of the caliper housing 30, a braking pressure is formed inside the cylinder portion 31. At this time, the piston 34 presses the one side pad plate 11 while advancing in the "A" direction of FIG. At the same time, the cylinder part 31 of the caliper housing 30 is moved in the "B" direction opposite to the movement of the piston 34 by the hydraulic reaction, and the connecting part 33 and the finger part 32 connected thereto are While moving in the "B" direction, the back surface of the other pad plate 12 is pressed in the reverse direction through the finger portion 32. Therefore, the two pad plates 11 and 12 on both sides press the disk 10 to brake the vehicle.

한편, 이와 같은 제동이 이루어질 때 캘리퍼하우징(30)은 소정각도 틀어진 상태이기 때문에 두 패드플레이트(11,12)의 마찰패드(11a,12a)가 틀어진 상태로 디스크(10)표면에 가압된다. 따라서 피스톤(34)에 의해 밀리는 일측 패드플레이트(11)의 마찰패드(11a)는 디스크(10)가 빠져나가는 쪽이 디스크(10)에 먼저 접촉되고, 핑거부(32)에 의해 밀리는 타측 패드플레이트(12)의 마찰패드(12a)는 디스크(10)가 진입되는 쪽이 디스크(10)에 먼저 접촉되면서 제동이 시작된다. 그리고 일단 제동이 시작된 이후에는 디스크(10)의 회전력에 의해 캘리퍼하우징(30)에 큰 모멘트(moment)가 걸리기 때문에 캘리퍼하우징(30)이 디스크(10)회전방향으로 소정구간 회전 변형된다. 따라서 디스크(10) 양측의 두 마찰패드(11a,12a)는 전면이 디스크(10)의 표면과 평행한 상태로 가압되어 마찰패드(11a,12a)에 가해지는 면압(P)이 전체적으로 균일해지기 때문에 마찰패드(11a,12a)의 편마모가 방지되고 제동소음과 진동의 발생이 줄어든다.Meanwhile, when the braking is performed, the caliper housing 30 is turned at a predetermined angle, so that the friction pads 11a and 12a of the two pad plates 11 and 12 are pressed to the surface of the disk 10. Therefore, the friction pad 11a of the one side pad plate 11 pushed by the piston 34 has the other side pad plate pushed by the finger part 32 on the side from which the disc 10 exits, and the finger pad 32 first. In the friction pad 12a of (12), braking is started when the side where the disc 10 enters contacts the disc 10 first. And once the braking is started, because a large moment (moment) is applied to the caliper housing 30 by the rotational force of the disk 10, the caliper housing 30 is deformed by a predetermined section in the rotation direction of the disk 10. Therefore, the two friction pads 11a and 12a on both sides of the disk 10 are pressed with the front surface parallel to the surface of the disk 10 so that the surface pressure P applied to the friction pads 11a and 12a becomes uniform. Therefore, uneven wear of the friction pads 11a and 12a is prevented, and the occurrence of braking noise and vibration is reduced.

이상에서 상세히 설명한 바와 같이, 본 발명에 따른 차량용 디스크브레이크는 캘리퍼하우징이 디스크표면과 수직을 이루는 연장선으로부터 디스크의 회전 반대방향으로 소정각도 틀어지게 설치되기 때문에 마찰패드에 걸리는 면압분포가 균일해짐으로써, 마찰패드의 편마모가 방지될 뿐만 아니라 제동동작시 소음 및 진동이 줄어드는 효과가 있다.As described in detail above, in the vehicle disc brake according to the present invention, since the caliper housing is installed at a predetermined angle in a direction opposite to the rotation of the disc from an extension line perpendicular to the disc surface, the surface pressure distribution applied to the friction pad becomes uniform. Not only the frictional wear of the friction pad is prevented, but also the noise and vibration are reduced during the braking operation.

Claims (2)

차량의 휠과 함께 회전하는 디스크, 상기 디스크의 양측에 배치되며 그 일면에 마찰패드가 부착된 한 쌍의 패드플레이트, 상기 두 패드플레이트를 가압하도록 피스톤이 설치된 실린더부를 구비하는 캘리퍼하우징, 상기 두 패드플레이트와 상기 캘리퍼하우징을 지지하는 캐리어, 상기 캘리퍼하우징이 상기 캐리어에 진퇴 가능하게 결합되도록 상기 캐리어의 양측에 형성된 결합공과 이 결합공에 끼워진 상태로 상기 캘리퍼하우징 양측에 결합된 가이드로드를 포함하는 차량용 디스크브레이크에 있어서,A disk that rotates with a wheel of a vehicle, a pair of pad plates disposed on both sides of the disk and having friction pads attached to one surface thereof, and a caliper housing having a cylinder part provided with a piston to press the two pad plates. A vehicle supporting a plate and the caliper housing, a coupling hole formed on both sides of the carrier so that the caliper housing is removably coupled to the carrier and guide rods coupled to both sides of the caliper housing in a state of being fitted into the coupling hole. In disc brake, 제동동작이 수행될 때 상기 마찰패드의 표면에 작용되는 면압분포가 균일해지도록 상기 캘리퍼하우징이 상기 디스크 표면과 수직을 이루는 연장선으로부터 상기 디스크의 회전 반대방향으로 소정각도 틀어지게 설치된 것을 특징으로 하는 차량용 디스크브레이크.The caliper housing is installed at a predetermined angle in a direction opposite to the rotation of the disk from the extension line perpendicular to the disk surface so that the surface pressure distribution applied to the surface of the friction pad is uniform when the braking operation is performed. Disc brake. 제 1항에 있어서,The method of claim 1, 상기 캘리퍼하우징이 평소 틀어진 상태를 유지하도록 상기 가이드로드와 상기 결합공이 상기 디스크 표면과 수직을 이루는 연장선으로부터 상기 디스크의 회전 반대방향으로 소정각도 틀어지게 설치된 것을 특징으로 하는 차량용 디스크브레이크.And the guide rod and the coupling hole are rotated at an angle in a direction opposite to the rotation of the disk from an extension line perpendicular to the disk surface so that the caliper housing is normally twisted.
KR1020000042985A 2000-07-26 2000-07-26 Disc brake for vehicle KR20020009663A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5610836A (en) * 1979-06-30 1981-02-03 Toyota Motor Corp Disc brake
JPH01119935U (en) * 1988-02-09 1989-08-14
JPH02102936A (en) * 1988-10-12 1990-04-16 Nissan Motor Co Ltd Disc brake device
JPH09250576A (en) * 1996-03-18 1997-09-22 Toyota Motor Corp Disc braking device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5610836A (en) * 1979-06-30 1981-02-03 Toyota Motor Corp Disc brake
JPH01119935U (en) * 1988-02-09 1989-08-14
JPH02102936A (en) * 1988-10-12 1990-04-16 Nissan Motor Co Ltd Disc brake device
JPH09250576A (en) * 1996-03-18 1997-09-22 Toyota Motor Corp Disc braking device

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