KR100819074B1 - Disk brake for vehicle - Google Patents

Disk brake for vehicle Download PDF

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Publication number
KR100819074B1
KR100819074B1 KR1020060127311A KR20060127311A KR100819074B1 KR 100819074 B1 KR100819074 B1 KR 100819074B1 KR 1020060127311 A KR1020060127311 A KR 1020060127311A KR 20060127311 A KR20060127311 A KR 20060127311A KR 100819074 B1 KR100819074 B1 KR 100819074B1
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KR
South Korea
Prior art keywords
wedge
disk
receiving member
nut
friction pad
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KR1020060127311A
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Korean (ko)
Inventor
김종기
Original Assignee
주식회사 만도
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Priority to KR1020060127311A priority Critical patent/KR100819074B1/en
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Publication of KR100819074B1 publication Critical patent/KR100819074B1/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
    • 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
    • F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for 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
    • 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
    • F16D55/2265—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 the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing
    • F16D55/227—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 the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing by two or more pins
    • 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
    • F16D2121/00—Type of actuator operation force
    • F16D2121/18—Electric or magnetic
    • F16D2121/24—Electric or magnetic using motors
    • 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
    • F16D2125/34—Mechanical mechanisms converting rotation to linear movement or vice versa acting in the direction of the axis of rotation
    • F16D2125/40—Screw-and-nut
    • 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
    • F16D2125/58—Mechanical mechanisms transmitting linear movement
    • F16D2125/66—Wedges

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

Abstract

A disk brake of a vehicle is provided to maintain a constant braking performance in a case a friction pad is worn away by allowing a wedge receiving member, a wedge member and a friction pad to simultaneously move through a nut and allowing a rotation shaft to move through a hole formed on the wedge receiving member. A disk brake of a vehicle comprises a disk(10), friction pads(20a,20b), provided at two sides of the disk, a wedge member(50), a wedge receiving member(60) having a mounting part(62) and a through-hole(61), and a driving device(70). The wedge member has a first surface attached to the friction pad and a second surface having a wedge surface which is inclined with respect to the disk. The wedge receiving member is inclined corresponding to the wedge surface. The driving device includes a nut(80), which is provided on a rotation shaft of the driving device. The nut is provided at a rear side of the wedge receiving member and allows the wedge receiving part to perform an advance/retreat movement such that the friction pad performs an advance/retreat movement with respect to the disk.

Description

차량용 디스크 브레이크{Disk Brake For Vehicle}Disk Brake For Vehicle

도 1은 본 발명에 따른 차량용 디스크 브레이크의 분해사시도이다.1 is an exploded perspective view of a disc brake for a vehicle according to the present invention.

도 2는 본 발명에 따른 디스크 브레이크의 요부를 나타내는 개략적인 단면도이다.2 is a schematic cross-sectional view showing the main portion of the disc brake according to the present invention.

도 3은 본 발명에 따른 디스크 브레이크의 마찰패드의 마모시의 제동상태를 보인 개략적인 단면도이다. Figure 3 is a schematic cross-sectional view showing a braking state during wear of the friction pad of the disc brake according to the present invention.

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

10 : 디스크 20a, 20b : 마찰패드 10: disc 20a, 20b: friction pad

30 : 캘리퍼하우징 40 : 캐리어30: caliper housing 40: carrier

50 : 쐐기부재 51 : 쐐기면50: wedge member 51: wedge surface

60 : 쐐기수용부재 61 : 관통공60: wedge receiving member 61: through hole

62 : 안착부 70 : 구동장치62: seating portion 70: drive device

71 : 회전축 80 : 너트 71: rotation axis 80: nut

90 : 가이드부재90: guide member

본 발명은 차량용 브레이크에 관한 것으로, 더욱 상세하게는 구동장치에 의해 디스크의 회전방향측으로 이동하며 마찰패드를 디스크에 압박하는 쐐기부재를 갖춘 차량용 디스크 브레이크에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle brake, and more particularly, to a vehicle brake having a wedge member which is moved toward the rotational direction of the disk by a drive device and presses the friction pad against the disk.

일반적으로 차량용 디스크 브레이크는 휠과 함께 회전하는 원판형상의 디스크 일부를 양측에서 마찰패드로 압박하여 제동력을 얻는 장치로써, 이러한 차량용 디스크 브레이크 중에는 차량의 휠과 함께 회전하는 디스크와, 디스크의 양측면과 마찰하며 제동력을 발생시키는 마찰패드와, 일면에 어느 하나의 마찰패드가 부착되며 디스크의 회전방향측에 위치한 단부의 배면이 디스크에 대하여 경사지게 형성되어 쐐기형상으로 형성되는 쐐기부재와, 쐐기부재를 디스크의 회전방향측으로 진퇴이동시키는 구동장치와, 쐐기부재의 배면과 대응하도록 전면이 경사지게 형성되며 디스크와의 사이에 쐐기부재가 물릴 수 있게 하는 안내부재를 포함하여 쐐기부재가 디스크와 안내부재 사이에 물려지도록 함으로써 적은 동력으로도 큰 제동력을 얻을 수 있도록 한 차량용 디스크 브레이크가 있다. 즉, 쐐기부재를 이용하는 디스크 브레이크는 구동장치의 회전력을 직선 방향의 힘으로 바꾸고, 다시 이 직선 방향의 힘과 쐐기를 이용하여 차량을 제동함으로써 제동 시 쐐기 효과에 의해 회전하는 디스크의 운동에너지가 제동에너지로 사용되므로 구동장치의 작은 힘으로도 차량을 정지시킬 수가 있다.In general, a vehicle disc brake is a device that obtains a braking force by pressing a portion of a disk-shaped disk that rotates with the wheel with friction pads on both sides, and during such a vehicle disc brake, the disc that rotates with the wheel of the vehicle and friction with both sides of the disc And a friction pad for generating a braking force, any one friction pad is attached to one surface, and a rear surface of an end portion located at the rotational side of the disk to be inclined with respect to the disk to form a wedge shape, and the wedge member of the disk. A drive device for moving forward and backward in a rotational direction, and a front surface formed to be inclined to correspond to the rear surface of the wedge member, and a guide member for allowing the wedge member to be bitten between the disc and the wedge member to be clamped between the disc and the guide member. By doing so, you can get great braking force with less power. One vehicle has disc brakes. That is, the disc brake using the wedge member converts the rotational force of the drive device into a linear force, and again brakes the vehicle by using the linear force and the wedge, thereby braking the kinetic energy of the rotating disk by the wedge effect during braking. Since it is used as energy, the vehicle can be stopped with a small force of the driving device.

이러한 종래의 차량용 디스크 브레이크에는 구동장치의 회전운동을 직선운동으로 변환하는 동력변환부재를 이용하여 쐐기부재를 가압하면 마찰패드가 디스크에 물려지게 되는데, 이때 쐐기부재의 경사면과 안내부재의 경사면이 접촉하여 큰 제 동력을 발휘하게 된다.In such a conventional disc brake for a vehicle, when the wedge member is pressed using a power conversion member that converts the rotational movement of the driving device into a linear motion, the friction pad is bitten by the disc, and the inclined surface of the wedge member and the inclined surface of the guide member are in contact with each other. To exert great force.

그러나 종래의 차량용 디스크 브레이크의 구동장치의 회전축은 길이가 짧기 때문에 회전축을 진퇴 운동하는 동력변환부재의 진퇴변위가 작아지게 된다. 따라서 마찰패드의 마모가 심하게 발생한 경우 동력변환부재의 전진이 한계가 있기 때문에 마찰패드가 디스크에 마찰하기 어려워져 제동력을 발휘하기 곤란해지는 문제점이 있다. 또한 안내부재가 고정된 상태에서 동력변환부재가 쐐기부재를 전진시키기 때문에 마모가 증가할수록 안내부재와 쐐기부재사이의 간극이 넓어지게 되어 제동시 쐐기부재가 부착된 마찰부재가 디스크의 회전방향으로 이동하는 양이 증가하게 된다. 따라서 양측에 마찰부재의 압착위치가 상이하게 되어 제동력이 저하되는 문제점이 있다. However, since the rotational axis of the conventional drive device of the disc brake for a vehicle is short in length, the forward and backward displacement of the power conversion member moving forward and backward on the rotational axis becomes small. Therefore, when the wear of the friction pad is severe, since the advance of the power conversion member has a limit, the friction pad is difficult to rub against the disk, which makes it difficult to exert a braking force. In addition, since the power conversion member advances the wedge member while the guide member is fixed, the gap between the guide member and the wedge member increases as the wear increases, so that the friction member with the wedge member moves in the rotational direction of the disc during braking. The amount to do is increased. Therefore, the pressing position of the friction member is different on both sides, there is a problem that the braking force is lowered.

본 발명은 상술한 종래기술의 문제점을 해결하기 위한 것으로, 본 발명의 목적은 마찰부재의 마모시에도 일정한 제동능력을 발휘할 수 있는 차량의 디스크 브레이크를 제공하는 것이다. The present invention is to solve the above problems of the prior art, an object of the present invention is to provide a disc brake of a vehicle that can exhibit a constant braking ability even when the friction member is worn.

이러한 목적을 달성하기 위한 본 발명은 차량의 휠과 함께 회전하는 디스크와, 상기 디스크의 양측에 마련되어 제동력을 발생시키는 마찰패드와, 일면이 상기 마찰패드에 부착되며 타면이 상기 디스크에 대하여 경사지게 형성된 쐐기면을 구비하는 쐐기부재와, 상기 쐐기부재의 쐐기면과 대응하도록 경사지게 형성되어 상기 쐐기부재와 결합하여 제동력을 증가시키는 쐐기수용부재와, 상기 마찰패드를 상기 디스크측으로 진퇴시키는 구동장치를 포함하되, 상기 구동장치는 회전운동을 직선운동으로 변환하기 위하여 상기 구동장치의 회전축에 마련되는 너트를 포함하고, 상기 너트는 상기 쐐기수용부재의 후방에 마련되어 상기 쐐기수용부재를 진퇴시킴으로써 상기 쐐기부재와 상기 마찰패드를 진퇴하여 제동력을 발휘하는 것을 특징으로 한다.The present invention for achieving this object is a disk that rotates with the wheel of the vehicle, a friction pad provided on both sides of the disk to generate a braking force, and one side is attached to the friction pad and the other side is formed wedge with respect to the disk Wedge member having a surface, Wedge receiving member is formed to be inclined to correspond to the wedge surface of the wedge member to increase the braking force in combination with the wedge member, and a drive device for advancing the friction pad to the disk side, The drive device includes a nut provided on the rotation shaft of the drive device to convert the rotational motion into a linear motion, the nut is provided in the rear of the wedge receiving member by advancing the wedge receiving member to the friction with the wedge member Retract the pad to exhibit a braking force.

또한, 상기 쐐기수용부재의 후면에는 상기 너트가 고정될 수 있도록 안착부가 형성된다.In addition, a seating portion is formed on the rear surface of the wedge receiving member to fix the nut.

또한, 상기 쐐기수용부재는 관통홀이 형성되며 상기 회전축은 상기 관통홀을 따라 진퇴가능하게 마련된다.In addition, the wedge receiving member is formed with a through hole and the rotating shaft is provided to be retractable along the through hole.

또한, 상기 너트는 회전을 방지하기 위해 직사각형형상으로 마련되어 상기 회전축을 따라 진퇴한다.In addition, the nut is provided in a rectangular shape to prevent the rotation to advance along the axis of rotation.

또한, 상기 쐐기수용부재의 진퇴를 가이드하기 위한 가이드부재를 더 포함한다.In addition, the guide member for guiding the advance of the wedge receiving member further includes.

이하에서는 본 발명의 바람직한 하나의 실시예를 도면을 참조하여 상세히 설명한다.Hereinafter, one preferred embodiment of the present invention will be described in detail with reference to the drawings.

본 발명에 따른 차량용 디스크 브레이크는 도 1, 2에 도시되어 있는 바와 같이 차량의 휠(미도시)과 함께 회전하는 원판형상의 디스크(10) 양측면에 마찰패드(20a, 20b)를 각각 마찰시켜 제동력을 얻는 장치로써, 내부 양측에 한 쌍의 마찰패드(20a, 20b)가 서로 대향되게 배치되어 있는 캘리퍼하우징(30)과, 차량의 너클부(미도시)에 고정되어 캘리퍼하우징(30)이 너클부에 진퇴이동 가능하게 설치될 수 있게 하는 캐리어(40)를 포함한다.In the disc brake for a vehicle according to the present invention, as shown in Figs. 1 and 2, the braking force is generated by rubbing the friction pads 20a and 20b on both sides of the disc-shaped disc 10 that rotates together with the wheels (not shown) of the vehicle. As a device for obtaining a caliper housing, a pair of friction pads 20a and 20b are disposed opposite to each other, and the caliper housing 30 is fixed to a knuckle portion (not shown) of the vehicle. It includes a carrier 40 that can be installed to move forward and backward.

캘리퍼하우징(30)이 캐리어(40)에 진퇴이동 가능하게 설치될 수 있도록 하기 위하여 캘리퍼하우징(30)의 양측단에는 캐리어(40)에 진퇴이동 가능하게 설치되는 한 쌍의 가이드로드(31)가 스크류 등의 체결부재를 통해 고정되어 있으며, 캐리어(40)의 양측에는 가이드로드(31)가 진퇴이동가능하게 설치되는 가이드홀(41)이 각각 마련되어 있다.In order to allow the caliper housing 30 to be installed in the carrier 40 so that the carrier 40 can be moved forward and backward, a pair of guide rods 31 are installed in the carrier 40 so that the caliper housing 30 can be moved forward and backward. It is fixed through a fastening member such as a screw, and the guide hole 41 is provided on both sides of the carrier 40 so that the guide rod 31 can be moved forward and backward.

또한 본 발명에 따른 차량용 디스크 브레이크는 일면이 마찰패드(20a)에 부착되며 타면이 디스크(10)에 대하여 경사지게 형성되어 있는 쐐기부재(50)와, 쐐기부재(50)의 쐐기면(51)과 대응하도록 경사지게 형성되어 쐐기부재(50)와 결합하여 제동력을 증가시키는 쐐기수용부재(60)와, 마찰패드(20a)를 디스크(10)측으로 진퇴시키는 구동장치(70)를 포함하여 이루어진다.In addition, the vehicle disk brake according to the present invention has a wedge member 50 having one surface attached to the friction pad 20a and the other surface being inclined with respect to the disk 10, and the wedge surface 51 of the wedge member 50. The wedge receiving member 60 is formed to be inclined to correspond to the wedge member 50 to increase the braking force, and the driving device 70 moves the friction pad 20a to the disk 10 side.

캘리퍼하우징(30)의 내부 타측에는 다른 하나의 마찰패드(20b)가 설치되는 핑거부(32)가 구비되어 있다. 본 실시예에서는 편의상 두 마찰패드(20a, 20b) 중 쐐기부재(50)에 설치되어 쐐기부재(50)와 함께 이동하는 마찰패드(20a)를 가동 마찰패드(20a)라 하며, 핑거부(32)에 설치되어 있는 마찰패드(20b)를 고정 마찰패드(20b)라 한다.The other side of the caliper housing 30 is provided with a finger portion 32 is provided with another friction pad 20b. In the present embodiment, the friction pad 20a, which is installed on the wedge member 50 among the two friction pads 20a and 20b and moves together with the wedge member 50, is referred to as a movable friction pad 20a. The friction pad 20b provided in the) is called a fixed friction pad 20b.

쐐기부재(50)의 전면은 설치되어 있는 가동 마찰패드(20a)가 디스크(10)의 일측면과 전체적으로 고르게 접촉할 수 있도록 디스크(10)의 측면과 평행하게 배치되어 있으며, 쐐기부재(50)의 배면은 디스크(10)를 향하여 소정각도로 경사지게 형성되어 바람직하게는 대략 중앙측이 돌출된 삼각형 형상의 쐐기면(51)이 형성된다.The front surface of the wedge member 50 is disposed in parallel with the side of the disk 10 so that the movable friction pad 20a, which is installed, may be uniformly in contact with one side of the disk 10, the wedge member 50 The rear surface of is formed to be inclined at a predetermined angle toward the disk 10, and preferably has a triangular wedge surface 51 having a protruding substantially central side.

또한, 쐐기수용부재(60)는 쐐기부재(50)의 후방에 마련되어 쐐기부재(50)의 쐐기면(51)을 지지할 수 있도록 전면이 쐐기부재(50)의 쐐기면(51)과 대응하도록 경사지게 형성되어 있다.In addition, the wedge receiving member 60 is provided at the rear of the wedge member 50 so that the front surface thereof corresponds to the wedge surface 51 of the wedge member 50 so as to support the wedge surface 51 of the wedge member 50. It is formed to be inclined.

본 실시예에서 쐐기부재(50)의 쐐기면(51)은 그 중앙측을 중심으로 양측으로 대칭되도록 전방측을 향하여 경사지게 형성되며, 쐐기수용부재(60)의 전면은 그 중앙측이 후방측으로 오목하게 형성되며 그 양측이 쐐기부재(50)의 쐐기면(51)과 대응하도록 경사지게 형성되어 차량의 좌우측 휠에 모두 적용될 수 있도록 되어 있다.In the present embodiment, the wedge surface 51 of the wedge member 50 is formed to be inclined toward the front side so as to be symmetrical to both sides about the center side thereof, and the front side of the wedge receiving member 60 has its center side concave to the rear side. It is formed so as to be inclined to correspond to the wedge surface 51 of the wedge member 50 is to be applied to both the left and right wheels of the vehicle.

이때 쐐기수용부재(60)의 중앙측에는 구동장치(70)의 회전축(71)이 관통하여 돌출되도록 관통홀(61)이 형성된다. 따라서 종래의 관통홀이 없는 쐐기수용부재에 비해 쐐기부재의 진퇴변위가 길어지게 되어 마찰패드(20a)의 마모가 심한 경우에도 쐐기부재(50)의 전진에 의해 일정한 제동력을 발휘할 수 있게 된다.At this time, the through hole 61 is formed at the central side of the wedge receiving member 60 so that the rotating shaft 71 of the driving device 70 protrudes through. Therefore, the wedge member has a longer displacement than the wedge receiving member without a conventional through hole, so that even when the friction pad 20a is severely worn, the braking force can be exerted by advancing the wedge member 50.

본 발명의 실시예에서는 구동장치(70)는 모터를 이용하는 것으로 한다.In the embodiment of the present invention, the driving device 70 uses a motor.

또한 관통홀(61)의 주변부에는 구동장치(70)의 회전운동을 직선운동으로 전환시키는 너트(80)가 고정되어 수용될 수 있도록 안착부(62)가 형성된다. 이때 안착부(62)는 직사각형의 너트형상에 상승하도록 소정깊이의 직사각형 형상으로 마련된다.In addition, a seating portion 62 is formed at a periphery of the through hole 61 so that the nut 80 for converting the rotational movement of the driving device 70 into a linear movement is fixed and accommodated. At this time, the mounting portion 62 is provided in a rectangular shape of a predetermined depth so as to rise in the rectangular nut shape.

쐐기수용부재(60)의 후방측의 구동장치(70)의 회전축(71)에는 너트(80)가 마련되는데, 너트(80)는 구동장치(70)의 회전축(71)에 형성된 스크류와 결합하여 진퇴가능하게 마련되며, 너트(80)자체의 회전을 방지하기 위해 직육면체형상으로 구 비된다. 너트(80)의 일측은 구동장치(70)의 전방에 인접하도록 마련되고 타측은 쐐기수용부재(60)의 안착부(62)에 안착된다. A nut 80 is provided on the rotating shaft 71 of the driving device 70 on the rear side of the wedge receiving member 60, and the nut 80 is coupled to a screw formed on the rotating shaft 71 of the driving device 70. It is provided to be retractable and is provided in a rectangular parallelepiped shape in order to prevent rotation of the nut 80 itself. One side of the nut 80 is provided to be adjacent to the front of the drive device 70 and the other side is seated on the seating portion 62 of the wedge receiving member 60.

또한 구동장치(70)와 쐐기부재(50)사이에는 가동마찰패드(20a)와 디스크(10)의 마찰시 쐐기부재(50)를 통해 쐐기수용부재(60)가 디스크(10)의 회전방향으로 유동하는 것을 방지하기 위한 가이드부재(90)가 구비된다. 가이드부재(90)는 쐐기수용부재(60)에 전달된 힘이 회전축(71)이 설치된 너트(80)에 전달되는 것을 방지하기 위한 것으로 본 실시예에서 가이드부재(90)는 쐐기부재(50)측으로 개방되며, 쐐기수용부재(60)의 양측단이 가이드부재(90)에 의해 가이드되어 진퇴가능하게 된다.In addition, between the drive device 70 and the wedge member 50, the wedge receiving member 60 is moved in the rotational direction of the disc 10 through the wedge member 50 during friction between the movable friction pad 20a and the disc 10. Guide member 90 is provided to prevent the flow. The guide member 90 is to prevent the force transmitted to the wedge receiving member 60 from being transmitted to the nut 80 on which the rotating shaft 71 is installed. In this embodiment, the guide member 90 is a wedge member 50. Open to the side, both ends of the wedge receiving member 60 is guided by the guide member 90 to be able to move forward and backward.

미설명 부호 "100"은 너트(80) 및 쐐기부재(50)를 덮어 너트(80) 및 쐐기부재(50)가 캘리퍼하우징(30)에 설치되어 있는 상태를 유지할 수 있게 하는 덮개(100)이다.Reference numeral “100” denotes a cover 100 which covers the nut 80 and the wedge member 50 so as to maintain the nut 80 and the wedge member 50 installed in the caliper housing 30. .

다음으로는 이러한 본 발명에 따른 차량용 디스크 브레이크의 동작에 대해 설명하기로 한다.Next, the operation of the vehicular disk brake according to the present invention will be described.

제동을 시작하게 되면 구동장치(70)의 구동력에 의해 회전축(71)이 회전하면서 회전축(71)에 마련된 너트(80)는 회전축(71)에 대해 직선 운동을 하게 된다. 이때 회전 토크가 직선 방향의 힘으로 전환되는데, 이러한 직선 방향의 힘은 쐐기수용부재(60)를 밀게 되고, 쐐기수용부재(60)는 다시 쐐기부재(50)를 밀게 되어 쐐기부재(50)와 일체로 형성된 가동마찰패드(20a)가 디스크(10)에 접촉한다.When the braking is started, the rotating shaft 71 is rotated by the driving force of the driving device 70, and the nut 80 provided on the rotating shaft 71 makes linear movement with respect to the rotating shaft 71. At this time, the rotation torque is converted into a linear force, such a linear force pushes the wedge receiving member 60, the wedge receiving member 60 pushes the wedge member 50 again and the wedge member 50 and An integrally formed movable friction pad 20a contacts the disk 10.

이때 가동마찰패드(20a)와 디스크(10) 사이에 마찰력이 발생하게 되고, 이러한 마찰력에 의해 쐐기부재(50)는 쐐기수용부재(60)와 압착하게 되며, 이후로는 쐐 기면(51)을 따라 경사면 운동을 하게 된다. 이때 쐐기 효과에 의해 쐐기부재(50)와 쐐기수용부재(60)의 경사면에서는 제동을 할 수 있을 만큼의 큰 힘이 발생한다. 즉, 구동장치의 작은 힘으로 쐐기부재(50)의 도움으로 차량을 정지시킬 정도의 충분히 큰 힘으로 증폭되는 것이다. 여기서 마찰패드(20a)와 디스크(10) 간의 마찰 계수가 쐐기면(51)의 경사각의 tan 값보다 작을 경우, 제동이 끝나면 마찰패드(20a)는 자동으로 롤백(Rollback)이 되며, 바로 이 자동 롤백에 의해 마찰패드(20a)와 디스크(10) 간의 간격은 자동으로 조절이 된다.At this time, a friction force is generated between the movable friction pad 20a and the disk 10, and the wedge member 50 is pressed against the wedge receiving member 60 by this friction force, and then the wedge surface 51 is pressed. Along the slope movement. At this time, due to the wedge effect, a large force generated enough to brake the inclined surfaces of the wedge member 50 and the wedge receiving member 60 is generated. That is, it is amplified by a force large enough to stop the vehicle with the help of the wedge member 50 with a small force of the drive device. Here, when the friction coefficient between the friction pad 20a and the disk 10 is smaller than the tan value of the inclination angle of the wedge surface 51, the friction pad 20a automatically rolls back when braking is completed. The gap between the friction pad 20a and the disk 10 is automatically adjusted by the rollback.

또한 본 발명에 따른 차량용 디스크 브레이크는 쐐기수용부재(60)와 쐐기부재(50)가 거의 일체형으로 움직임으로써 차량의 전진 제동 후 후진 제동 시 혹은 후진 제동 후 전진 제동 시 제동이 안 되는 구간이 발생하지 않으며, 제동 시 가동마찰패드(20a)가 디스크(10)의 회전 방향으로 이동하는 것을 최소화하며 가동마찰패드(20a)와 고정마찰패드(20a)가 거의 같은 위치에서 디스크(10)를 압착하게 된다. 또한 일반적인 캘리퍼의 특성을 그대로 이용하여 가동마찰패드(20a)가 디스크(10)를 압착할 때 작용하는 반력을 캘리퍼 하우징(30)에 작용하게 하여 캘리퍼하우징(30)이 고정마찰패드(20a)를 밀어 디스크(10)의 반대쪽 면을 압착하게 된다.In addition, in the disc brake for a vehicle according to the present invention, the wedge accommodating member 60 and the wedge member 50 move almost integrally so that a section in which the brake is not braked when the vehicle is braked backward or after forward braking does not occur. When the braking, the movable friction pad 20a is minimized in the rotational direction of the disk 10, and the movable friction pad 20a and the fixed friction pad 20a are compressed at almost the same position. . In addition, by using the characteristics of the general caliper as it is, the friction force acting when the movable friction pad 20a compresses the disk 10 acts on the caliper housing 30, so that the caliper housing 30 uses the fixed friction pad 20a. Push to compress the opposite side of the disk (10).

또한 본 발명에 따른 차량용 디스크 브레이크는 도3에 도시된 바와 같이 구동장치(70)의 회전축(71)은 쐐기수용부재(60)의 관통홀(61)을 통과하여 종래기술에 비해 상대적으로 길게 마련되므로 마찰패드(20a)의 마모가 심한 경우에도 마모된 양만큼 너트(80)가 쐐기수용부재(60)를 밀게 되므로 쐐기수용부재(60)가 전진하게 되어 마찰패드(20a)의 마모를 보상할 수 있게 되어 마찰패드(20a)의 마모에도 불구 하고 일정한 정도의 제동력을 발휘할 수 있게 된다.In addition, the disc brake for a vehicle according to the present invention, as shown in Figure 3, the rotation shaft 71 of the drive device 70 passes through the through-hole 61 of the wedge receiving member 60 is provided relatively longer than the prior art Therefore, even when the wear of the friction pad 20a is severe, the nut 80 pushes the wedge receiving member 60 by the amount of wear, so that the wedge receiving member 60 moves forward to compensate for the wear of the friction pad 20a. It is possible to exhibit a certain degree of braking force despite the wear of the friction pad (20a).

또한 주차 시에는 쐐기수용부재(60)를 디스크(10)가 압착될 때까지 밀어준 후 그 상태를 유지함으로써 주차 기능도 함께 제공하게 된다.In addition, during parking, the wedge receiving member 60 is pushed until the disk 10 is compressed, and then the parking function is maintained by maintaining the state.

이상에서 상세히 설명한 바와 같이, 본 발명에 따른 차량용 디스크브레이크는 너트가 쐐기수용부재와 쐐기부재 및 마찰패드를 동시에 진퇴시키며, 쐐기수용부재에 관통홀을 형성하고 회전축을 관통홀로 진퇴시켜 마찰패드의 마모시에도 일정한 정도의 제동력을 발휘할 수 있으며 컴팩트한 구성이 가능하게 되는 효과가 있다.As described in detail above, the vehicle disk brake according to the present invention, the nut to retreat the wedge receiving member, the wedge member and the friction pad at the same time, to form a through hole in the wedge receiving member and to retract the rotating shaft into the through hole to wear the friction pad It can exert a certain degree of braking force even at the time and has the effect of enabling a compact configuration.

Claims (5)

차량의 휠과 함께 회전하는 디스크와, A disk that rotates with the wheel of the vehicle 상기 디스크의 양측에 마련되어 제동력을 발생시키는 마찰패드와, Friction pads provided at both sides of the disk to generate a braking force; 일면이 상기 마찰패드에 부착되며 타면이 상기 디스크에 대하여 경사지게 형성된 쐐기면을 구비하는 쐐기부재와, A wedge member having one surface attached to the friction pad and the other surface having a wedge surface inclined with respect to the disk; 상기 쐐기부재의 쐐기면과 대응하도록 경사지게 형성되어 상기 쐐기부재와 결합하여 제동력을 증가시키는 쐐기수용부재와,Wedge receiving member is formed to be inclined to correspond to the wedge surface of the wedge member to increase the braking force in combination with the wedge member, 상기 마찰패드를 상기 디스크측으로 진퇴시키는 구동장치를 포함하되,And a drive device for advancing the friction pad toward the disk side, 상기 구동장치는 회전운동을 직선운동으로 변환하기 위하여 상기 구동장치의 회전축에 마련되는 너트를 포함하고, 상기 너트는 상기 쐐기수용부재의 후방에 마련되어 상기 쐐기수용부재를 진퇴시킴으로써 상기 쐐기부재와 상기 마찰패드를 진퇴하여 제동력을 발휘하며,The drive device includes a nut provided on the rotation shaft of the drive device to convert the rotational motion into a linear motion, the nut is provided in the rear of the wedge receiving member by advancing the wedge receiving member to the friction with the wedge member Retract the pads to apply braking force, 상기 쐐기수용부재의 후면에는 상기 너트가 고정될 수 있도록 안착부가 형성되고, 상기 쐐기수용부재는 관통홀이 형성되며 상기 회전축은 상기 관통홀을 따라 진퇴가능하게 마련되는 것을 특징으로 하는 차량용 디스크 브레이크.The rear surface of the wedge receiving member is provided with a seating portion to be fixed to the nut, the wedge receiving member is a through-hole is formed and the rotating shaft is a vehicle disc brake, characterized in that it is provided to be retractable along the through-hole. 삭제delete 삭제delete 제 1항에 있어서, 상기 너트는 회전을 방지하기 위해 직사각형형상으로 마련되어 상기 회전축을 따라 진퇴하는 것을 특징으로 하는 차량용 디스크 브레이크.The disk brake of claim 1, wherein the nut is provided in a rectangular shape to prevent rotation of the nut and moves along the rotation axis. 제 1 항에 있어서, 상기 쐐기수용부재의 진퇴를 가이드하기 위한 가이드부재를 더 포함하는 것을 특징으로 하는 차량용 디스크 브레이크The disk brake for a vehicle according to claim 1, further comprising a guide member for guiding the retraction of the wedge receiving member.
KR1020060127311A 2006-12-13 2006-12-13 Disk brake for vehicle KR100819074B1 (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002010609A1 (en) * 2000-07-29 2002-02-07 Robert Bosch Gmbh Disc brake

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002010609A1 (en) * 2000-07-29 2002-02-07 Robert Bosch Gmbh Disc brake

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