KR19980049040A - Leak-proof structure of brake oil for disc brake of automobile - Google Patents
Leak-proof structure of brake oil for disc brake of automobile Download PDFInfo
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- KR19980049040A KR19980049040A KR1019960067713A KR19960067713A KR19980049040A KR 19980049040 A KR19980049040 A KR 19980049040A KR 1019960067713 A KR1019960067713 A KR 1019960067713A KR 19960067713 A KR19960067713 A KR 19960067713A KR 19980049040 A KR19980049040 A KR 19980049040A
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- South Korea
- Prior art keywords
- brake
- mounting hole
- air inlet
- disc
- caliper
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/044—Removal or measurement of undissolved gas, e.g. de-aeration, venting or bleeding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/002—Air treatment devices
- B60T17/004—Draining and drying devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
- B60T11/28—Valves specially adapted therefor
- B60T11/30—Bleed valves for hydraulic brake systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/04—Arrangements of piping, valves in the piping, e.g. cut-off valves, couplings or air hoses
- B60T17/043—Brake line couplings, air hoses and stopcocks
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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
- 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
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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
-
- 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
- F16D2125/02—Fluid-pressure mechanisms
- F16D2125/16—Devices for bleeding or filling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Braking Arrangements (AREA)
Abstract
본 발명은 자동차의 디스크식 브레이크용 브레이크오일의 누설방지구조에 관한 것으로, 장착홀(1a)이 형성됨과 더불어 너클스핀들에 부착되도록 된 캘리퍼(1), 이 캘리퍼(1)의 양측부에 부착되도록 된 브레이크실린더(2), 라이닝이 부착됨과 더불어 유압에 마찰력이 발생되도록 된 패드(3), 이 패드(3)를 디스크에 압착시키도록 된 피스톤(4), 이 피스톤(4)과 결합된 실린더부트(5), 상기 장착홀(1a)에 스프링(7)을 매개로 설치된 블리더스크류(6)로 이루어진 자동차의 디스크식 브레이크에 있어서, 상기 블리더스크류(6)가 설치된 장착홀(1a)의 소정부위가 대기압과 연결되도록 형성된 공기유입홀(1b)과 연통됨과 더불어 이 공기유입홀(1b)의 끝단부에는 체크밸브(8)가 설치되어져, 상기 공기유입홀(1b)로 유입된 대기압을 매개로 브레이크 작동시 고압으로 상승된 캘리퍼(1)내부의 압력을 대기압으로 유지시켜 브레이크 오일의 수주를 낮춘상태에서 블리더스크류(6)에 형성된 공기유입홀(1b)을 통해 장착홀(1a)로 유입된 외부공기를 방출시킴으로써 브레이크오일의 누설을 방지하게 되어, 상기 브레이크오일의 사용수명이 향상될 뿐만 아니라 이로 인해 브레이크의 제동성이 향상되도록 된 것이다.The present invention relates to a leak-proof structure of a brake oil for a disc brake of an automobile, wherein a mounting hole (1a) is formed and a caliper (1) which is attached to knuckle spindles, so as to be attached to both sides of the caliper (1). Brake cylinder 2, a pad 3 to which the lining is attached and a friction force is generated in the hydraulic pressure, a piston 4 to compress the pad 3 to the disc, and a cylinder associated with the piston 4 In the disc brake of an automobile comprising a boot (5) and a bleeder screw (6) installed in the mounting hole (1a) via a spring (7), a mounting hole (1a) provided with the bleeder screw (6). While a predetermined portion of is in communication with the air inlet hole (1b) formed to be connected to the atmospheric pressure, the check valve (8) is provided at the end of the air inlet hole (1b), the atmospheric pressure introduced into the air inlet hole (1b) Raised to high pressure during brake operation The pressure inside the fur 1 is maintained at atmospheric pressure to release the brake air by releasing external air introduced into the mounting hole 1a through the air inlet hole 1b formed in the bleeder screw 6 in a state where the order of the brake oil is lowered. By preventing the leakage of oil, not only the service life of the brake oil is improved, but also the braking property of the brake is improved.
Description
본 발명은 자동차의 디스크식 브레이크용 브레이크오일의 누설방지구조에 관한 것으로, 특히 체크밸브가 설치된 공기유입홀이 장착홀과 연통되어져 캘리퍼의 내부로 유입된 공기의 배출시 브레이크오일의 누설이 방지되도록 된 자동차의 디스크식 브레이크용 브레이크오일의 누설방지구조에 관한 것이다.The present invention relates to a leakage preventing structure of a brake oil for a disc brake of an automobile, and in particular, an air inlet hole provided with a check valve communicates with a mounting hole to prevent leakage of the brake oil when the air introduced into the caliper is discharged. Disclosed is a leakage preventing structure of a brake oil for a disc brake of a motor vehicle.
일반적으로 제동장치(Brake System)는 주행하는 자동차를 감속 또는 정지시킴과 동시에 주차상태를 유지하기 위해 사용하는 중요한 장치로서, 첫째 작동이 확실하고 잘되어야 하고, 둘째 신뢰성과 내구성이 뛰어나야 하며, 세째 점검 및 조정이 용이해야 하는 조건을 갖추어야 한다. 제동장치의 기본적인 구조는 운전자의 조작력을 링크나 유압을 이용해서 전달하는 조작기구와 그 힘을 받아 제동력을 발생하는 본체로 되어 있으며, 주행할 때 주로 사용하는 주브레이크와 자동차를 주차할 때 사용하는 주차브레이크가 있는 바, 상기 주브레이크는 운전자의 발로 조작해야 하기 때문에 푸트브레이크라 하고, 상기 주차브레이크는 보통 손으로 조작하기 때문에 핸드브레이크라 한다.In general, a brake system is an important device used to keep a car parked at the same time as decelerating or stopping a driving vehicle. First, the operation must be reliable and good, secondly reliable and durable, and third inspection. And conditions that should be easy to adjust. The basic structure of the braking system consists of a control mechanism that transmits the driver's operating force by using a link or hydraulic pressure, and a main body that generates the braking force by receiving the force. Since there is a parking brake, the main brake is called a foot brake because it must be operated by the driver's foot, and the parking brake is usually a hand brake because it is operated by hand.
그리고, 상기 주브레이크는 브레이크페달의 조작에 의해 발생된 유압을 매개로 제동시키도록 된 유압식 브레이크와, 대형자동차등 큰 제동력을 필요로 하는 경우에 사용되도록 된 배력식 브레이크 및, 압축공기의 압력을 이용해 제동력을 발생시키도록 된 공기브레이크로 분류된다.In addition, the main brake is a hydraulic brake to be braked by the hydraulic pressure generated by the operation of the brake pedal, a hydraulic brake to be used when a large braking force such as a large vehicle, and the pressure of the compressed air It is classified as an air brake intended to generate braking force.
여기서, 상기 유압식 브레이크에는 바퀴와 함께 회전되는 디스크의 양쪽에서 제동패드를 유압에 의해 눌러서 제동하도록 된 디스크식 브레이크가 있는바, 그 일반적인 구성은 도1에 도시된 바와 같이, 주철재질의 안장모양으로 형성되어 너클스핀들에 부착되도록 된 캘리퍼(1), 이 캘리퍼(1)의 양측부에 각각 부착되도록 된 2개의 브레이크실린더(2), 라이닝이 부착됨과 더불어 유압에 의해 디스크에 압착되어 마찰력이 발생되도록 된 패드(3), 이 패드(3)를 디스크에 압착시켜 제동력을 발생시키도록 된 피스톤(4), 이 피스톤(4)과 결합되어 상기 브레이크실린더(2)의 내부로 수분이 먼지가 유입되는 것을 방지하도록 된 실린더부트(5)등으로 이루어져, 조립시 도2에 도시된 형태를 이루도록 되어 있다.Here, the hydraulic brake has a disk-type brake to brake by pressing the brake pads by hydraulic pressure on both sides of the disk that is rotated with the wheel, the general configuration is a saddle shape of cast iron material, as shown in FIG. A caliper (1) formed to be attached to the knuckle spindles, two brake cylinders (2) to be attached to both sides of the caliper (1), and linings are attached to the disk, and are pressed against the disk by hydraulic pressure to generate frictional force. The pad (3), the piston (4) to compress the pad (3) to the disk to generate a braking force, and the piston (4) is coupled to the water in the dust inside the brake cylinder (2) It is made of a cylinder boot (5), etc. to prevent that, to achieve the form shown in Figure 2 during assembly.
따라서, 운전자가 브레이크페달을 밟으면 브레이크오일에 유압이 발생되어 브레이크실린더(2)내에 있는 피스톤(4)이 도3에 도시된 바와 같이, 압출되고 이 피스톤(4)이 압출됨과 동시에 패드(3)가 차륜과 일체로 회전되는 디스크(20)에 압입되어 마찰에 의해 제동되어 진다.Therefore, when the driver presses the brake pedal, hydraulic pressure is generated in the brake oil so that the piston 4 in the brake cylinder 2 is extruded as shown in Fig. 3, and the piston 4 is extruded and at the same time the pad 3 is pressed. Is pressed into the disk 20 which is integrally rotated with the wheel and braked by friction.
이러한 구성품들로 이루어진 디스크식 브레이크중 종래의 캘리퍼(1)에는 도4에 도시된 바와 같이, 브레이크오일이 충진된 장착홀이 형성되되, 이 장착홀(1a)의 상부에는 공기배출홀(6b)이 내부에 종축방향으로 관통된 블리더스크류(6)가 스프링(7)을 매개로 설치되어 진다.As shown in FIG. 4, a conventional caliper 1 of the disc brakes made of these components is formed with a mounting hole filled with brake oil, and an air discharge hole 6b is disposed above the mounting hole 1a. Bleeder screws 6 penetrated in the longitudinal axis therein are installed through the springs 7.
여기서, 상기 장착홀(1a)에 브레이크오일이 아닌 외부의 공기가 유입되었을 경우 브레이크의 작동성능이 저하되어 제동효과가 현저히 저하되는 바, 이때 작업자가 장착홀(1a)에 단단히 조여진 블리더스크류(6)를 상방향으로 풀어주게 되면 장착홀(1a)에 유입되었던 공기가 공기배출홀(6b)을 통해 외부로 배출되므로 상기 캘리퍼(1)의 내부로 정상상태를 유지할 수 있게 된다.Here, when external air other than the brake oil is introduced into the mounting hole 1a, the operating performance of the brake is lowered and the braking effect is remarkably lowered. At this time, a bleeder screw fastened by the operator to the mounting hole 1a ( When 6) is released upward, the air introduced into the mounting hole 1a is discharged to the outside through the air discharge hole 6b, thereby maintaining a normal state inside the caliper 1.
그러나 이와 같은 종래의 구조에 의하면, 브레이크의 작동시 패드(3)와 디스크(20)와의 마찰열에 의해 캘리퍼(1)내부의 압력이 상승되므로 장착홀(1a)에 유입된 공기의 배출시 상기 캘리퍼(1)내부의 고압에 의해 브레이크오일이 공기와 함께 공기배출홀(6b)을 통해 외부로 누설되는 문제점이 있었다.However, according to this conventional structure, since the pressure inside the caliper 1 is increased by the frictional heat between the pad 3 and the disk 20 when the brake is operated, the caliper is discharged when the air introduced into the mounting hole 1a is discharged. (1) Due to the high pressure inside, the brake oil leaked to the outside through the air discharge hole 6b together with the air.
이에 본 발명은 상기와 같은 문제점을 해소하기 위해 안출된 것으로, 체크밸브가 설치된 공기유입홀을 장착홀에 연통시켜 블리더스크류의 해체시 상기 공기유입홀의 대기압을 매개로 캘리퍼내부의 압력을 낮춘 다음 유입된 외부공기를 공기배출홀을 통해 외부로 방출됨으로써 브레이크오일의 누설을 방지할 수 있도록 된 ㄷ자동차의 디스크식 브레이크용 브레이크오일의 누설방지구조를 제공함에 그 목적이 있다.Therefore, the present invention was devised to solve the above problems, by communicating the air inlet hole with the check valve to the mounting hole to lower the pressure inside the caliper through the atmospheric pressure of the air inlet hole when disassembling the bleeder screw The purpose of the present invention is to provide a leakage preventing structure of a brake oil for a disc brake of a vehicle, which is capable of preventing leakage of brake oil by releasing the introduced external air to the outside through an air discharge hole.
도1은 일반적으로 사용되는 디스크식 브레이크의 결합상태를 나타내는 사시도,1 is a perspective view showing a coupling state of a disc brake generally used;
도2는 디스크식 브레이크가 결합된 사시도,2 is a perspective view of a disk type brake coupled;
도3은 디스크식 브레이크의 원리를 나타내는 단면도,3 is a cross-sectional view showing the principle of the disc brake;
도4는 종래 구조로서, 캘리퍼에 블리더스크류가 설치된 상태를 나타내는 단면도,4 is a cross-sectional view showing a state in which a bleeder screw is installed in a caliper as a conventional structure;
도5는 본 발명에 따른 캘리퍼에 블리더스크류가 설치된 상태로서, 도4에 대응되는 단면도,5 is a state in which a bleeder screw is installed in a caliper according to the present invention, FIG.
도6은 도5의 작동상태를 나타내는 단면도이다.6 is a cross-sectional view showing an operating state of FIG.
*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
1 - 캘리퍼1a - 장착홀1-Caliper 1a-Mounting Hole
1b - 공기유입홀2 - 브레이크실린더1b-Air inlet hole 2-Brake cylinder
3 - 패드4 - 피스톤3-Pad 4-Piston
5 - 실린더부트6 - 블리더스크류5-Cylinder Boot 6-Bleeder Screw
6a - 공기배출홀7 - 스프링6a-Air outlet hole 7-Spring
8 - 체크밸브8-check valve
상기와 같은 목적을 달성하기 위한 본 발명은, 장착홀이 형성됨과 더불어 너클스핀들에 부착되도록 된 캘리퍼, 이 캘리퍼의 양측부에 부착되도록 된 브레이크실린더, 라이닝이 부착됨과 더불어 유압에 마찰력이 발생되도록 된 패드, 이 패드를 디스크에 압착시키도록 된 피스톤, 이 피스톤과 결합된 실린더부트, 상기 장착홀에 스프링 매개로 설치된 블리더스크류로 이루어진 자동차의 디스크식 브레이크에 있어서, 상기 블리더스크류가 설치된 장착홀의 소정부위가 대기압과 연결되도록 형성된 공기유입홀과 연통됨과 더불어 이 공기유입홀의 끝단부에는 체크밸브가 설치된 구조로 되어 있다.The present invention for achieving the above object, the mounting hole is formed and the caliper to be attached to the knuckle spindle, the brake cylinder to be attached to both sides of the caliper, the lining is attached and the frictional force is generated to be generated A disc brake of an automobile comprising a pad, a piston adapted to compress the pad to a disc, a cylinder boot coupled to the piston, and a bleeder screw installed in the mounting hole by springs, the disc brake of the mounting hole provided with the bleeder screw. The predetermined portion is in communication with the air inlet hole formed to be connected to the atmospheric pressure, and the end of the air inlet hole has a structure in which a check valve is installed.
이하 본 발명을 첨부된 예시도면에 의거 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
도4는 본 발명에 따른 캘리퍼에 블리더스크류가 설치된 상태를 단면도로서, 본 발명은 브레이크오일의 내부에 충진되는 장착홀(1a)이 형성됨과 더불어 주철재질의 안장모양으로 형성되어 너클스핀들에 부착되도록 된 캘리퍼(1), 이 캘리퍼(1)의 양측부에 각각 부착되도록 된 2개의 브레이크실린더(2), 라이닝이 부착됨과 더불어 유압에 의해 디스크에 압착되어 마찰력이 발생되도록 된 패드(3), 이 패드(3)를 디스크에 압착시켜 제동력을 발생시키도록 된 피스톤(4), 이 피스톤(4)과 결합되어 상기 브레이크실린더(2)의 내부로 수분이 먼지가 유입되는 것을 방지하도록 된 실린더부트(5), 종축방향으로 공기배출홀(6b)이 관통됨과 더불어 스프링(7)을 매개로 상기 장착홀(1a)의 상부에 설치된 블리더스크류(6)로 이루어진 자동차의 디스크식 브레이크에 있어서, 상기 블리더스크류(6)가 설치된 장착홀(1a)의 소정부위에는 브레이크의 작동시 캘리퍼(1)내부의 압력을 낮추기 위해 외부와 관통된 공기유입홀(1b)이 형성됨과 더불어 대기와 접촉되는 상기 공기유입홀(1b)의 끝단부에는 외부의 공기가 상기 공기유입홀(1b)로 유입될 때 작동되도록 된 체크밸브(8)와 설치된다.Figure 4 is a cross-sectional view of the bleeder screw is installed in the caliper according to the present invention, the present invention is formed with a mounting hole (1a) is filled in the brake oil and formed in a saddle shape of cast iron material attached to the knuckle spindles Caliper (1), two brake cylinders (2), each of which is attached to both sides of the caliper (1), a pad (3) to which the lining is attached, and which is pressed against the disc by hydraulic pressure to generate frictional force, A piston (4) which compresses the pad (3) to a disk to generate a braking force, and a cylinder boot which is combined with the piston (4) to prevent dust from entering the inside of the brake cylinder (2). (5) In the disc brake of an automobile comprising an air discharge hole (6b) in the longitudinal axis direction and a bleeder screw (6) installed on the mounting hole (1a) via a spring (7), Prize A predetermined portion of the mounting hole 1a in which the bleeder screw 6 is installed is provided with an air inlet hole 1b which penetrates the outside to lower the pressure inside the caliper 1 when the brake is operated, and in contact with the atmosphere. The end of the air inlet hole (1b) is provided with a check valve (8) which is operated when the outside air flows into the air inlet (1b).
따라서 장착홀(1a)의 내부에 외부의 공기가 유입되었을 경우 도6에 도시된 바와 같이, 블리더스크류(6)를 약간만 해체시켜 상방향으로 이동시키게 되면 체크밸브(8)를 통해 공기유입홀(1b)로 유입된 대기압이 브레이크작동시 고온으로 상승된 캘리퍼(1)내의 압력과 접촉되어 대기압과 동일한 압력으로 유지시키게 되는 바, 이때 상기 캘리퍼(1)내의 고압으로 상승되었던 브레이크오일이 도시된 화살표 K의 아래방향으로 하강됨과 동시에 상기 장착홀(1a)로 유입되었던 외부공기는 브레이크오일과 분리된 상태에서 블리더스크류(6)에 형성된 공기유입홀(1b)을 통해 외부로 방출된다.Therefore, when external air flows into the mounting hole 1a, as shown in FIG. 6, when the bleeder screw 6 is slightly dismantled and moved upward, the air inlet hole is provided through the check valve 8. Atmospheric pressure introduced to (1b) is in contact with the pressure in the caliper (1) raised to a high temperature during brake operation to maintain at the same pressure as the atmospheric pressure, wherein the brake oil was raised to a high pressure in the caliper (1) At the same time as descending the arrow K, the external air that has flowed into the mounting hole 1a is discharged to the outside through the air inlet hole 1b formed in the bleeder screw 6 in a state separated from the brake oil.
이상 설명한 바와 같이 본 발명에 의하면, 장착홀이 형성됨과 더불어 너클스핀들에 부착되도록 된 캘리퍼, 이 캘리퍼의 양측부에 부착되도록 된 브레이크실린더, 라이닝이 부착됨과 더불어 유압에 마찰력이 발생되도록 된 패드, 이 패드를 디스크에 압착시키도록 된 피스톤, 이 피스톤과 결합된 실린더부트, 상기 장착홀에 스프링을 매개로 설치돈 블리더스크류로 이루어진 자동차의 디스크식 브레이크에 있어서, 상기 블리더스크류가 설치된 장착홀의 소정부위가 대기압과 연결되도록 형성된 공기유입홀과 연통됨과 더불어 이 공기유입홀의 끝단부에는 체크밸브가 설치되어져, 상기 공기유입홀로 유입된 대기압을 매개로 브레이크 작동시 고압으로 상승된 캘리퍼내부의 압력을 대기압으로 유지시켜 브레이크오일의 수주를 낮춘상태에서 블리더스크류에 형성된 공기배출홀을 통해 장착홀로 유입된 외부공기를 방출시킴으로써 브레이크오일의 누설을 방지하게 되어, 상기 브레이크오일의 사용수명이 향상될 뿐 아니라 이로 인해 브레이크의 제동성이 향상되는 효과가 있다.As described above, according to the present invention, a mounting hole is formed and a caliper to be attached to the knuckle spindles, a brake cylinder to be attached to both sides of the caliper, a pad to which the lining is attached, and a hydraulic force is generated, A disc brake of an automobile comprising a piston configured to press a pad onto a disc, a cylinder boot coupled with the piston, and a bleeder screw installed in a spring via the mounting hole. The part is in communication with the air inlet hole formed to be connected to the atmospheric pressure, and a check valve is installed at the end of the air inlet hole, and the pressure inside the caliper increased to high pressure when the brake is operated by the atmospheric pressure introduced into the air inlet hole. Bleedersk with the brake oil order lowered By discharging the air discharged through the mounting hole formed in the outside air inlet hole there is an effect which is to prevent the leakage of the brake fluid, as well as improve the service life of the brake fluid This improves the dynamics of the brake.
Claims (1)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960067713A KR19980049040A (en) | 1996-12-19 | 1996-12-19 | Leak-proof structure of brake oil for disc brake of automobile |
| DE19752636A DE19752636A1 (en) | 1996-12-19 | 1997-11-27 | Brake caliper for disc brake of road vehicle |
| JP9348594A JPH10292833A (en) | 1996-12-19 | 1997-12-03 | Caliper for disc brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960067713A KR19980049040A (en) | 1996-12-19 | 1996-12-19 | Leak-proof structure of brake oil for disc brake of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR19980049040A true KR19980049040A (en) | 1998-09-15 |
Family
ID=19489040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960067713A KR19980049040A (en) | 1996-12-19 | 1996-12-19 | Leak-proof structure of brake oil for disc brake of automobile |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH10292833A (en) |
| KR (1) | KR19980049040A (en) |
| DE (1) | DE19752636A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100664B (en) * | 2014-07-03 | 2017-04-12 | 贵州新安航空机械有限责任公司 | Spring resetting device |
| CN116118859B (en) * | 2023-04-04 | 2023-06-23 | 任丘市宏达汽车部件有限公司 | Liquid level controllable power steering oil tank |
-
1996
- 1996-12-19 KR KR1019960067713A patent/KR19980049040A/en not_active Application Discontinuation
-
1997
- 1997-11-27 DE DE19752636A patent/DE19752636A1/en not_active Ceased
- 1997-12-03 JP JP9348594A patent/JPH10292833A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10292833A (en) | 1998-11-04 |
| DE19752636A1 (en) | 1998-06-25 |
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