KR100357387B1 - Device for warning wear of friction material of disk brake in vehicle - Google Patents

Device for warning wear of friction material of disk brake in vehicle Download PDF

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Publication number
KR100357387B1
KR100357387B1 KR1019970009755A KR19970009755A KR100357387B1 KR 100357387 B1 KR100357387 B1 KR 100357387B1 KR 1019970009755 A KR1019970009755 A KR 1019970009755A KR 19970009755 A KR19970009755 A KR 19970009755A KR 100357387 B1 KR100357387 B1 KR 100357387B1
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South Korea
Prior art keywords
friction material
battery
wear
brake
piston
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KR1019970009755A
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Korean (ko)
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KR19980074094A (en
Inventor
우제양
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기아자동차주식회사
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Priority to KR1019970009755A priority Critical patent/KR100357387B1/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
    • F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
    • F16D66/02—Apparatus for indicating wear
    • F16D66/021—Apparatus for indicating wear using electrical detection or indication means
    • F16D66/022—Apparatus for indicating wear using electrical detection or indication means indicating that a lining is worn to minimum allowable thickness
    • F16D66/025—Apparatus for indicating wear using electrical detection or indication means indicating that a lining is worn to minimum allowable thickness sensing the position of parts of the brake system other than the braking members, e.g. limit switches mounted on master cylinders
    • 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

Abstract

PURPOSE: A wear warning device of a friction material for a disk brake in a vehicle is provided to replace the friction material timely by warning the wear of the friction material to a driver with lighting warning lamps sequentially by increasing the projection width of a conductor according to wear of the friction material. CONSTITUTION: A wear warning device(41) is composed of a conductor protruded to a disk(21) in a cylinder(32) of a disk brake(31) and attached to the upper part of a piston(33) to contact a friction material(34) to the disk; a sensing wire(42) mounted to the cylinder mounting the piston having the conductor to detect the projection width of the conductor; a battery(43) connected to the sensing wire; and a warning lamp(45) connected to the battery through a wire(44) and turned on and off by controlling current of the battery corresponding to conduction or short of the sensing wire. The sensing wires are arranged around the conductor, and the warning lamps are varied in different color or intensity according to the connection of the sensing wires.

Description

자동차용 디스크브레이크의 마찰재 마모경고장치Friction material wear warning device of automotive disc brake

본 발명은 자동차용 디스크브레이크의 마찰재 마모경고장치에 관한 것으로, 특히 디스크브레이크의 마찰재 마모정도를 운전자가 용이하게 인지할 수 있도록 되어 마찰재의 마모에 따른 브레이크의 오동작 등을 방지하여 안전운행을 도모할 수있도록 된 자동차용 디스크브레이크의 마찰재 마모경고장치에 관한 것이다.The present invention relates to a friction material wear warning device of a disc brake for automobiles, in particular, the driver can easily recognize the friction material wear degree of the disc brake to prevent the malfunction of the brake due to the wear of the friction material to promote safe operation. It relates to a friction material wear warning device of the disc brake for automobiles.

일반적으로, 자동차의 제동을 위해 자동차의 각 바퀴마다 바퀴의 디스크 및 드럼을 마찰력에 의해 제동할 수 있도록 된 브레이크가 구비되는 바, 이 브레이크는 타이어 휠이 설치되는 드럼이 마찰판에 의해 마찰되면서 제동되는 드럼브레이크와, 상기 타이어 휠이 설치되는 디스크가 마찰재에 의해 마찰 되면서 제동되는 디스크브레이크로 구분됨이 보편화 되어 있다.In general, a brake is provided to brake a disk and a drum of a wheel by a frictional force for braking the vehicle, and the brake is braked when the drum on which the tire wheel is installed is rubbed by a friction plate. The drum brake and the disc on which the tire wheel is installed are generally divided into disc brakes which are braked by friction material.

여기서, 상기 디스크브레이크는 차축에 연결되어 엔진의 동력에 따라 회전되도록 된 원판형상의 디스크가 그 양측에서 소정압력으로 가압 ·밀착되는 마찰재에 의해 제동되도록 되는 것으로서, 이 브레이크의 일측 가압부는 종래에 도 4에 도시된 바와 같이, 브레이크(31)의 양측단, 즉 디스크 양측면에서 소정폭 이격된 수직방향 위치에 브레이크(31)의 실린더(32)가 구비되고, 이 실린더(32)내의 유압원에 따라 실린더(32)의 외측으로 돌출 또는 퇴몰되도록 된 피스톤(33)이 상기 실린더(32)내에 취부되며, 이 피스톤(33)의 외측면에 디스크의 외측면과 맞닿아 마찰을 일으킬 수 있도록 된 마찰재(34)가 부착된다.In this case, the disc brake is connected to the axle, and the disc-shaped disc, which is to be rotated according to the engine power, is to be braked by a friction material that is pressed and adhered to a predetermined pressure on both sides thereof. As shown in Fig. 4, the cylinder 32 of the brake 31 is provided at both ends of the brake 31, i.e., in a vertical position spaced a predetermined width from both sides of the disk, and according to the hydraulic source in the cylinder 32. A piston 33 is provided in the cylinder 32 to protrude or retreat to the outside of the cylinder 32, and a friction material that is in contact with the outer surface of the disk to cause friction by the outer surface of the piston 33 ( 34) is attached.

따라서, 자동차의 주행중 제동이 요구될 시, 운전자의 선택적 조작에 따라 브레이크(31)의 실린더(32)내로 일정압력을 지닌 유압원이 충진되고, 이 유압원의 충전에 따라 실린더(32)내의 피스톤(33)이 외부, 즉 디스크방향으로 돌출되며, 이 피스톤(33)의 돌출에 따라 피스톤(33)외측의 마찰재(34)가 디스크와 맞접하면서 상기 디스크에 소정압력의 마찰력이 가해져 디스크가 제동된다.Therefore, when braking is required while driving the vehicle, a hydraulic pressure source having a constant pressure is filled into the cylinder 32 of the brake 31 according to the driver's selective operation, and the piston in the cylinder 32 is filled with the hydraulic pressure source. (33) protrudes outwardly, that is, in the direction of the disc, and as the friction material 34 outside the piston 33 comes into contact with the disc as the piston 33 protrudes, a friction force of a predetermined pressure is applied to the disc to brake the disc. .

또, 상기 마찰재(34)는 그 사용정도에 따라 디스크와의 마찰에 의해 마모되도록 되어 마찰재(34)의 마모정도를 운전자가 인지할 수 있도록 상기 피스톤(33)의 상단부에 마모신호판(35)이 부착되어 마찰재(34)가 마모되었을 시, 마모신호판(35)과 디스크가 마찰되면서 금속성의 마찰음을 발생하여 상기 운전자가 마찰재(34)의 마모정도를 인지할 수 있도록 된다.In addition, the friction material 34 is worn by friction with the disk according to the degree of use thereof, so that the wear signal plate 35 at the upper end of the piston 33 so that the driver can recognize the wear degree of the friction material 34. When the friction material 34 is attached and worn, the wear signal plate 35 and the disk are rubbed to generate metallic friction sounds so that the driver can recognize the degree of wear of the friction material 34.

그러나 상기와 같이, 마찰재(34)의 마모정도가 마모신호판(35)과 디스크와의 마찰음 청취에 의해 이루어지도록 됨에 따라, 자동차의 주행시 운전자가 용이하게 청취할 수 없음은 물론, 디스크와 마모신호판(35)의 마찰 ·접촉에 따라 마모신호판(35)이 파손되어 마찰재(34)의 마모정도를 인지할 수 없도록 되는 문제점이 있었다.However, as described above, the wear degree of the friction material 34 is made by listening to the friction signal between the wear signal plate 35 and the disk, so that the driver cannot easily listen to the driving of the vehicle, as well as the disk and the wear signal. There is a problem that the wear signal plate 35 is broken due to friction and contact of the plate 35 so that the wear degree of the friction material 34 cannot be recognized.

이에 본 발명은 상기와 같은 제반 문제점을 해소하기 위해 안출된 것으로, 디스크브레이크의 마찰재 마모정도를 운전자가 용이하게 인지할 수 있도록 운전석의 소정부에 경고등으로써 표시되도록 되어 상시 정상적인 디스크브레이크의 작동을 도모할 수 있도록 된 자동차용 디스크브레이크의 마찰재 마모경고장치를 제공함에 그 목적이 있다.Accordingly, the present invention has been devised to solve the above problems, and is displayed as a warning light on a predetermined part of the driver's seat so that the driver can easily recognize the wear level of the friction material of the disc brake, thereby promoting the normal operation of the disc brake. It is an object of the present invention to provide a friction material wear warning device of a disc brake for automobiles.

도 1은 본 발명에 따른 디스크브레이크부의 사시도,1 is a perspective view of a disc brake unit according to the present invention,

도 2는 본 발명에 따른 마모경고장치의 구성도,2 is a block diagram of a wear warning device according to the present invention,

도 3는 본 발명에 따른 마모경고장치 마찰재부의 단면도,Figure 3 is a cross-sectional view of the wear warning device friction material portion according to the present invention,

도 4은 종래형상으로서, 도 3에 대응되는 부분단면도이다.4 is a partial cross-sectional view corresponding to FIG. 3 in a conventional shape.

11 - 차축, 21 - 디스크,11-axle, 21-disk,

31 - 브레이크, 32 - 실린더,31-brake, 32-cylinder,

33 - 피스톤, 34 - 마찰재,33-piston, 34-friction material,

41 - 경고장치, 42 - 감지선,41-warning device, 42-sensing line,

43 - 배터리, 44 - 도선,43-battery, 44-lead wire,

45 - 경고등, 46 - 통전물.45-warning lights, 46-energized materials.

상기와 같은 목적을 달성하기 위한 본 발명은, 디스크브레이크의 피스톤상에 일정길이의 통전물이 부착되고, 이 통전물의 돌출에 따라 양전극이 한쌍을 이루면서 일정간격 이격되어 다수개가 설치되어 순차적으로 접속되도록 된 감지선이 상기 피스톤상부의 실린더에 설치되는 한편, 이 감지선의 양전극에 전류를 통전시킬 수있도록 된 자동차의 배터리가 구비되고, 이 배터리에 연결되면서 상기 각 감지선의 통전에 따라 수치나 색상등으로 구분된 단계구분식 경고등이 도선 등을 매개로 운전석내 소정부위에 설치되는 구조로 되어 있다.The present invention for achieving the above object is, a certain length of the conductive material is attached to the piston of the disc brake, a plurality of electrodes are installed to be sequentially connected by spaced apart at regular intervals by forming a pair of electrodes according to the protrusion of the energized material. While the sensing line is installed in the cylinder on the piston, a battery of a vehicle is provided which can conduct current to both electrodes of the sensing line, and is connected to the battery to the value or color according to the energization of each sensing line. The divided stage warning lights are installed in certain parts of the driver's seat via the conductor.

상기와 같이 구성된 본 발명은, 디스크브레이크의 사용에 따라 마찰재가 마모되고, 이 마찰재의 마모에 따라 피스톤의 돌출폭이 커지면서 이 피스톤의 상부에 부착된 통전물이 피스톤의 돌출방향을 따라 배열된 감지선의 양전극을 접속하면서 각 단계별 감지선에 대한 통전이 이루어지며, 이 감지선의 통전에 따라 운전석에 설치된 경고등의 각 경고등이 상응되는 감지선의 통전에 따라 점등된다.According to the present invention configured as described above, the friction material is worn in accordance with the use of the disc brake, and as the protrusion width of the piston increases according to the wear of the friction material, the sensing material attached to the upper part of the piston is arranged along the protrusion direction of the piston. While connecting the positive electrode of the line, energization of each sensing line is made, and according to the energization of the sensing line, each warning lamp of the warning lamp installed in the driver's seat is turned on according to the energization of the corresponding sensing line.

이하, 천부된 예시도면을 참조하여 본 발명에 따른 실시예를 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying exemplary drawings.

도 1은 본 발명에 따른 자동차 디스크브레이크를 도시한 것이고, 도 2는 본 발명에 따른 마모경고장치를 도시한 것이며, 도 3은 본 발명에 따른 감지선과 통전물을 도시한 것으로서, 종래형상을 도시한 도 4와 동일한 부위에는 동일한 참조부호를 표기하면서 그에 대한 상세한 설명을 생략하기로 한다.1 is a diagram illustrating a vehicle disc brake according to the present invention, FIG. 2 is a wear warning device according to the present invention, and FIG. 3 is a view showing a sensing line and an energized object according to the present invention, and shows a conventional shape. The same parts as in FIG. 4 are denoted by the same reference numerals, and detailed description thereof will be omitted.

본 발명은 운전자의 조작에 따라 디스크브레이크(31)의 실린더(32)에서 디스크(21)방향으로 돌출되어 그 외측에 부착된 마찰재(34)를 상기 디스크(21)에 밀착시킬 수 있도록 된 피스톤(33)의 상부에 일정길이를 이루고 부착된 통전물(46)과, 이 통전물(46)의 돌출폭을 감지할 수 있도록 상기 통전물(46)이 부착된 피스톤(33)이 설치되는 실린더(32)에 취부되는 감지선(42), 이 감지선(42)와 연결된 배터리(43), 이 배터리(43)와 도선(44)을 매개로 연결되면서 상기 감지선(42)의 통전 ·단락에 따라 배터리(43)의 전류가 단속되면서 전구등이 점등되도록 된 경고등(45)으로 이루어진다.According to the present invention, a piston protrudes from the cylinder 32 of the disc brake 31 in the direction of the disc 21 so that the friction material 34 attached to the outside thereof can be brought into close contact with the disc 21 ( A cylinder on which the energized object 46 is attached to form an upper portion of the upper part 33 and the piston 33 to which the energized object 46 is attached is installed so as to detect the projecting width of the energized object 46. 32 is connected to the sensing line 42, the battery 43 connected to the sensing line 42, the battery 43 and the conducting wire 44, and to the energization / short circuit of the sensing line 42. Accordingly, the current of the battery 43 is intermittently made of a warning light 45 so that the light bulb is turned on.

여기서, 상기 감지선(42)은 배터리(43)와 연결되어 브레이크(31)내로 삽입되면서 브레이크(31)의 실린더(32)상부, 즉 상기 피스톤(33)상의 통전물(46)과 접속될 수 있는 위치로 뻗어 설치되고, 상기 통전물(46)의 돌출방향을 따라 일정간격을 이루고 다수개(본 발명에서는 3개)가 연속 ·배열되며, 이 각각의 감지선(42)은 양극과 음극의 전극이 한쌍을 이루도록 된다.Here, the sensing line 42 may be connected to the battery 43 and inserted into the brake 31 to be connected to the upper portion of the cylinder 32 of the brake 31, that is, the current 46 on the piston 33. Installed in a predetermined position along a protruding direction of the current 46 and a plurality of (three in the present invention) are arranged and arranged in series, and each of the sensing lines 42 is formed of a positive electrode and a negative electrode. The electrodes are paired.

또, 상기 경고등(45)은 운전자의 시야범위내 운전석의 전방부 등에 설치되는 것이 바람직하며, 상기 각 감지선(42)의 접속에 따라 배터리(43)의 전류가 통전되면서 수치나 색상등이 상이하게 표시되어 있는 각 경고등(45)이 점등되도록 된다.In addition, the warning light 45 is preferably installed in the front of the driver's seat, etc. in the driver's field of view, the value of the color or the color is different as the current of the battery 43 is energized in accordance with the connection of the respective sensing lines (42). Each warning light 45 is indicated to be turned on.

따라서, 디스크브레이크(31)의 마찰재(34)마모에 따라 피스톤(33)의 돌출폭이 증가되고, 이에 따라 피스톤(33)상의 통전물(46)이 각 감지선(42)과 순차적으로 접속되어 이 감지선(42)에 연결된 배터리(43)의 전류가 각 감지선(42) 및 각 경고등(45)으로 통전되면서 각 경고등(45)이 순차적으로 점등되어 운전자등이 마찰재(34)의 마모치를 인지할 수 있도록 된다.Therefore, the protruding width of the piston 33 is increased as the friction material 34 of the disc brake 31 wears, so that the energized object 46 on the piston 33 is sequentially connected to each sensing line 42. As the current of the battery 43 connected to the sensing line 42 is energized by each of the sensing lines 42 and each of the warning lights 45, each of the warning lights 45 is sequentially turned on, so that the driver's light is worn out by the friction material 34. It can be recognized.

이상 설명한 바와 같이 본 발명에 의하면, 자동차 디스크브레이크(31)의 마찰재(34) 마모정도를 운전자등이 용이하게 인지할 수 있도록 되면서 일정이하로 마모된 마찰재(34)에 대한 교환이 적당한 시기에 이루어져 상기 디스크브레이크(31)의 정상작동을 도모할 수 있는 효과가 있다.As described above, according to the present invention, while the driver or the like can easily recognize the wear level of the friction material 34 of the automobile disc brake 31, the replacement of the friction material 34 worn below a certain time is made at an appropriate time. There is an effect that can promote the normal operation of the disc brake (31).

Claims (1)

자동차 디스크브레이크(31)의 실린더(32)에서 디스크(21)방향으로 돌출되어 그 외측에 부착된 마찰재(34)를 상기 디스크(21)에 밀착시킬 수 있도록 된 피스톤(33)의 상부에 일정길이를 이루고 부착된 통전물(46)과; 이 통전물(46)의 돌출폭을 감지할 수 있도록 상기 통전물(46)이 부착된 피스톤(33)이 설치되는 실린더(32)에 취부되는 감지선(42)과; 이 감지선(42)과 연결된 공지의 배터리(43)와; 이 배터리(43)와 도선(44)을 매개로 연결되면서 상기 감지선(42)의 통전 ·단락에 따라 배터리(43)의 전류가 단속되면서 점등되도록 된 경고등(45)으로 구성하되,A certain length is protruded from the cylinder 32 of the automobile disc brake 31 toward the disc 21 so that the friction material 34 attached to the outside thereof can be brought into close contact with the disc 21. A conductive material 46 formed and attached thereto; A sensing line 42 mounted to the cylinder 32 on which the piston 33 to which the energization 46 is attached is installed so as to sense the projecting width of the energization 46; A known battery 43 connected to the sensing line 42; The battery 43 is connected to the conductive wire 44 as a medium and consists of a warning light 45 to be turned on while the current of the battery 43 is interrupted according to the energization and short circuit of the sensing line 42. 상기 감지선(42)은 배터리(43)와 연결되어 브레이크(31) 내로삽입되면서 브레이크(31)의 실린더(32) 상부, 즉 상기 피스톤(33)상의 통전물(46)과 접속될 수 있는 위치로 뻗어 설치되고, 상기 통전물(46)의 돌출방향을 따라 일정간격을 이루고 다수개가 연속 배열되며, 이 각각의 감지선(42)은 양극과 음극의 전극 한쌍으로 구성하고,The sensing line 42 is connected to the battery 43 and inserted into the brake 31 to be connected to the upper portion of the cylinder 32 of the brake 31, that is, the energization 46 on the piston 33. Installed at a predetermined interval along the protruding direction of the current 46, and a plurality of them are continuously arranged, and each of the sensing lines 42 comprises a pair of electrodes of an anode and a cathode, 상기 경고등(45)은 운전자의 시야범위내 운전석의 전방부에 설치되며, 상기 각 감지선(42)의 접속에 따라 배터리(43)의 전류가 통전되면서 수치나 색상등이 상이하게 표시되도록 한 것을 특징으로 하는 자동차용 디스크브레이크의 마찰재 마모경고장치.The warning light 45 is installed in the front part of the driver's seat in the driver's field of view, and according to the connection of each of the sensing lines 42, the current of the battery 43 is energized so that the numerical value or color is displayed differently. Friction material wear warning device of an automotive disc brake.
KR1019970009755A 1997-03-21 1997-03-21 Device for warning wear of friction material of disk brake in vehicle KR100357387B1 (en)

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KR1019970009755A KR100357387B1 (en) 1997-03-21 1997-03-21 Device for warning wear of friction material of disk brake in vehicle

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KR1019970009755A KR100357387B1 (en) 1997-03-21 1997-03-21 Device for warning wear of friction material of disk brake in vehicle

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KR100357387B1 true KR100357387B1 (en) 2003-08-02

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