KR100268078B1 - Apparatus to increase braking power for disk brake - Google Patents

Apparatus to increase braking power for disk brake Download PDF

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Publication number
KR100268078B1
KR100268078B1 KR1019970044178A KR19970044178A KR100268078B1 KR 100268078 B1 KR100268078 B1 KR 100268078B1 KR 1019970044178 A KR1019970044178 A KR 1019970044178A KR 19970044178 A KR19970044178 A KR 19970044178A KR 100268078 B1 KR100268078 B1 KR 100268078B1
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South Korea
Prior art keywords
brake
braking
pistons
piston
pressure
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KR1019970044178A
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Korean (ko)
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KR19990020710A (en
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김종복
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정몽규
현대자동차주식회사
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Priority to KR1019970044178A priority Critical patent/KR100268078B1/en
Publication of KR19990020710A publication Critical patent/KR19990020710A/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
    • 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
    • F16D2121/02—Fluid pressure
    • F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure

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

Abstract

PURPOSE: A support device of braking force of a disc brake is provided to ensure a braking operation, by continuously operating a damaged piston through the motion of a normal piston when one out of brake pipe lines is damaged. CONSTITUTION: Pads(12) are confronted each other. Pistons(14) are mounted to compress the pads. Pressure chambers are formed to give hydraulic pressure to the pistons. Brake pipe lines(18) are branched and connected from a master cylinder to the pressure chamber and supply a braking fluid for the pressure chambers. A linked member(20) connects both pistons and moves the pistons into a disc rotor(10). Wherein, The end parts of rods of the linked member are fixed to the center part of the pistons, the one out of the rods serve as a lever, centering a fixed hinge(24).

Description

디스크 브레이크의 제동력 보완장치Brake Compensation Device for Disc Brake

본 발명은 디스크 브레이크에 관한 것으로, 특히 제동시 양쪽 피스톤이나 브레이크 파이프 라인중 어느 한쪽에서 손상이 유발되어도 정상적으로 동작되는 피스톤의 운동을 매개로 손상된 쪽의 피스톤을 지속적으로 작동시키도록 하여 제동의 안전성을 보장할 수 있도록 된 디스크 브레이크의 제동력 보완장치에 관한 것이다.The present invention relates to a disc brake, and in particular, the braking safety is maintained by continuously operating the piston on the damaged side through the movement of a piston that is normally operated even when damage is caused on either the piston or the brake pipeline during braking. The braking force compensator of the disc brake can be ensured.

일반적으로 차량에는 주행중 운전자의 필요에 따라 차속을 임의적으로 감속시키거나 정지시키기 위한 제동장치를 구비하고 있는 바, 이러한 제동장치는 크게 기계식과 유압식으로 구분되는데, 유압식의 제동장치는 운전자의 조작력을 링크나유압을 이용하여 증대시킨 상태로 전달하는 조작기구와, 이 조작기구의 힘을 받아 유압을 발생시키는 유압발생기구 및, 이 유압발생기구로부터 발생된 유압을 전달받아 차륜에 제동력을 발생시키는 제동기구로 구성된다.Generally, a vehicle includes a brake device for arbitrarily decelerating or stopping a vehicle speed according to a driver's needs while driving. Such a brake device is largely divided into a mechanical and a hydraulic type, and a hydraulic brake device links a driver's operating force. An operating mechanism for transmitting in an increased state by using the hydraulic pressure, a hydraulic generating mechanism for generating hydraulic pressure by the force of the operating mechanism, and a braking mechanism for generating a braking force on the wheel by receiving the hydraulic pressure generated from the hydraulic generating mechanism. It consists of.

한편, 상기와 같은 유압식의 제동장치에서 디스크 브레이크는 회전하는 디스크 로터에 패드를 밀착시켜 제동력을 발생시키는 제동장치인 바, 이와 같은 디스크 브레이크는 도 1에 도시된 바와 같이, 너클측 스핀들(1)의 외주면에 장착되어 회전하는 허브조립체(2)와, 이 허브조립체(2)에 나사체결방식으로 결합되어 함께 회전하는 디스크 로터(3), 이 디스크 로터(3)의 가장자리 일측의 외주면으로 감싸도록 설치되는 캘리퍼(4)로 구성된다.Meanwhile, in the hydraulic braking device as described above, the disc brake is a braking device that generates a braking force by bringing a pad into close contact with the rotating disc rotor. Such a disc brake is the knuckle-side spindle 1 as shown in FIG. 1. A hub assembly (2) mounted on an outer circumferential surface of the disk assembly and a disk rotor (3) coupled to the hub assembly (2) by a screwing method to rotate together, and wrapped around the outer circumferential surface of one side of the edge of the disk rotor (3). It consists of the caliper 4 which is installed.

여기서 상기 캘리퍼(4)의 내부에는 도 2에 도시된 바와 같이, 제동시 디스크로터(3)의 회전을 저지시키도록 이의 양쪽 선단부위에 대향되게 설치되는 패드(5)와, 이 양측의 패드(5)를 각기 가압하도록 설치되는 피스톤(6), 이 양측의 피스톤(6)에 제동유압을 각기 가하도록 마련된 압력실(7), 이 양측의 압력실(7)내로 제동시 제동압유를 공급하도록 마스터실린더로부터 각 입력실(7)에 까지 각기 분지되게 연결된 브레이크 파이프라인(8)이 마련되어 있다.Here, the inside of the caliper (4), as shown in Figure 2, the pad (5) which is installed opposite to both front end portions thereof to prevent the rotation of the disc rotor (3) during braking, and the pad (5) on both sides Piston 6, which is installed to pressurize each), a pressure chamber 7 provided to apply braking hydraulic pressure to the pistons 6 on both sides thereof, and to supply braking pressure oil when braking into these pressure chambers 7 on both sides. A brake pipeline 8 is provided which is branched from the master cylinder to each input chamber 7.

따라서 상기와 같이 구성되는 디스크 브레이크는, 제동시 마스터실린더로부터 가압된 제동압유가 브레이크 파이프라인(8)을 통해 양측 압력실(7)내에까지 공급되면, 이 압력실(7)내에 유입된 제동압유가 각기 피스톤(6)을 밀게 되고, 이에 따라 피스톤(6)이 패드(5)를 디스크 로터(3) 측으로 밀게 되며, 이 패드(5)가 디스크 로터(3)와 접촉되어 마찰되면서 제동이 이루어지게 된다.Therefore, in the above-described disc brake, when the braking pressure oil pressurized from the master cylinder at the time of braking is supplied to both pressure chambers 7 through the brake pipeline 8, the braking pressure introduced into the pressure chamber 7 is applied. The oils push the pistons 6, so that the pistons 6 push the pads 5 toward the disc rotor 3, and the pads 5 come into contact with the disc rotors 3 and friction to brake. You lose.

그런데, 상기와 같은 디스크 브레이크식의 제동장치에서는, 마스터실린더로부터 양측 압력실(7)에까지 연결된 브레이크 파이프라인(8)중 적어도 어느 한쪽에서 손상이 생기거나 관로내에서 베이퍼현상 또는 수증기에 의한 관로가 막혀 정상적인 제동압유의 공급이 이루어지지 못하게 되면, 정상적인 다른 쪽 브레이크 파이프라인(8)을 통해서만 제동압유의 공급이 이루어지므로 제동이 원활하게 이루어지지 못하는 단점이 있었다.By the way, in the disc brake type braking device as described above, damage occurs in at least one of the brake pipelines 8 connected from the master cylinder to the pressure chambers 7 on both sides, or a pipeline by vapor phenomenon or water vapor in the pipeline If it is blocked and the normal brake pressure supply is not made, the braking pressure oil is supplied only through the other normal brake pipeline 8, so that braking is not smoothly performed.

이에 본 발명은 상기와 같은 단점을 해소하기 위해 안출된 것으로, 제동시 양측 압력실내로 연통되게 연결된 브레이크 파이프라인중 어느 한쪽에서 손상이 유발되어 정상적인 제동압유의 공급이 이루어지지 못하더라도 정상적으로 동작되는 쪽의 피스톤운동을 매개로 손상된 쪽의 피스톤을 지속적으로 작동시키도록 하여 제동의 안전성을 확보할 수 있도록 된 디스크 브레이크의 제동력 보완장치를 제공함에 그 목적이 있다.Therefore, the present invention has been devised to solve the above disadvantages, the side that is normally operated even if the braking pressure supply is not made due to damage caused in any one of the brake pipelines connected to both sides of the pressure chamber during braking It is an object of the present invention to provide a brake brake compensating device for a disc brake that can ensure the safety of braking by continuously operating the piston on the damaged side through the piston movement of the engine.

제1도는 종래 디스크 브레이크의 개략구성도,1 is a schematic configuration diagram of a conventional disc brake;

제2도는 종래 디스크 브레이크의 작동원리를 나타내는 개략단면도,2 is a schematic cross-sectional view showing the operation principle of a conventional disc brake;

제3도의 (a),(b)는 본 발명에 따라 제동력 보완장치가 장착된 디스크 브레이크의 작동 실시예를 도시한 단면도이다.3 (a) and 3 (b) are cross-sectional views showing an exemplary embodiment of a disc brake equipped with a braking force compensator according to the present invention.

〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>

10 : 디스크 로터 12 : 패드10: disc rotor 12: pad

14 : 피스톤 16 : 압력실14 piston 16 pressure chamber

18 : 브레이크 파이프라인 20 : 연동부재18: brake pipeline 20: interlocking member

22 : 로드 24 : 힌지지점22: rod 24: hinge support point

상기한 바의 목적을 달성하기 위한 본 발명은, 디스크 로터의 양쪽 선단부위에 대향되게 설치되는 패드를 각기 가압하도록 설치되는 피스톤과, 이 양측의 피스톤에 제동유압을 각기 가하도록 마련된 압력실, 이 양측의 압력실내로 제동시 제동압유를 공급하도록 각 입력실로 각기 분지되게 연결된 브레이크 파이프라인을 구비한 디스크 브레이크에 있어서, 상기 양측 피스톤은 각기 피스톤과 선단부가 고정된 로드와, 이 로드의 일측이 힌지지점을 중심으로 고정장착된 연동부재를 매개로 연결되어 양측의 피스톤을 디스크 로터쪽을 향해 동일한 방향으로 움직일 수 있도록 된 것을 특징으로 한다.The present invention for achieving the above object, the piston is provided to press each of the pads provided opposite the front end portions of the disc rotor, and the pressure chamber provided to apply braking hydraulic pressure to the piston of both sides, both sides In a disc brake having a brake pipeline connected to the respective input chambers so as to supply braking pressure oil when braking into a pressure chamber of the pressure chamber, the two pistons each have a rod having a piston and a tip fixed thereto, and one side of the rod hinged. It is characterized in that connected to the interlocking member fixedly mounted around the point to move the piston on both sides in the same direction toward the disc rotor.

이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 3의 (a),(b)는 본 발명에 따라 제동력 보완장치가 장착된 디스크 브레이크의 작동 실시예를 도시한 단면도이다.3 (a) and 3 (b) are cross-sectional views illustrating an exemplary embodiment of a disc brake equipped with a braking force compensator according to the present invention.

본 발명은 도면에 도시된 바와 같이, 제동시 디스크 로터(10)의 회전을 저지시키도록 이의 양쪽 선단부위에 대향되게 설치되는 패드(12)와, 이 양측의 패드(12)를 각기 가압하도록 설치되는 피스톤(14), 이 양측의 피스톤(14)에 제동유압을 각기 가하도록 마련된 압력실(16), 이 양측의 압력실(16)내로 제동시 제동압유를 공급하도록 마스터실린더로부터 각 입력실(16)에 까지 각기 분지되게 연결된 브레이크 파이프라인(18)을 구비한 디스크 브레이크에 있어서, 상기 양측 피스톤(14)은 각기 연동부재(20)를 매개로 연결되어 있는 바, 이 연동부재(20)는 상기 피스톤(14)을 디스크 로터(10)쪽을 향해 동일한 방향으로 움직일 수 있게 해 준다.As shown in the drawing, the pad 12 is installed to oppose both ends thereof so as to prevent rotation of the disc rotor 10 during braking, and the pad 12 is provided to press the pad 12 on both sides, respectively. The piston 14, the pressure chamber 16 provided to apply braking hydraulic pressure to the piston 14 on both sides thereof, and each input chamber from the master cylinder to supply the braking pressure oil during braking into the pressure chamber 16 on both sides thereof. In the disc brake having a brake pipeline (18) connected to each branch up to 16, the two pistons 14 are connected to each other via an interlocking member (20), the interlocking member (20) This allows the piston 14 to move in the same direction towards the disc rotor 10.

즉, 상기 연동부재(20)는 일측면에 패드(12)를 장착한 피스톤(14)의 중앙부 위에 로드(22)의 선단부가 각기 고정되고, 이로드(22)의 일측이 캘리퍼내에 고정된 힌지지점(24)을 중심으로 하여 지렛대와 같이 장착되어 있다.That is, the interlocking member 20 is fixed to the front end of the rod 22 on the central portion of the piston 14, the pad 12 is mounted on one side, the hinge of one side of the rod 22 is fixed in the caliper It is mounted like a lever around the point 24.

따라서 상기 양측의 피스톤(14)은 제동시 연동부재(20)를 매개로 한쪽의 피스톤(14)만 가동하더라도 이의 작용력이 반대편 피스톤(14)에도 연동부재(20)를 통해 전달되므로 정상적인 피스톤(14)의 작동이 이루어지게 된다.Therefore, even when the piston 14 on both sides operates only one piston 14 through the interlocking member 20 during braking, its action force is transmitted to the opposite piston 14 through the interlocking member 20, so that the normal piston 14 ) Will be performed.

이를 더욱 상세히 설명하면, 도 3의 (a)의 경우와 같이, 상기 브레이크 파이프라인(18)중 좌측의 압력실(16)과 연통된 좌측의 브레이크 파이프라인(18)에서 손상이 생기거나 관로내에서 베이퍼현상 또는 수증기에 의한 관로가 막혀 제동시 정상적인 제동압유의 공급이 이루어지지 못하게 될 경우에도, 정상적으로 작동되는 우측의 피스톤(14)에 움직임에 의해 연동부재(20)의 로드(22)가 힌지지점(24)을 중심으로 하여 반대쪽 좌측의 피스톤(14)까지도 정상적인 작동을 이루어지게 하여 전반적인 제동이 원활하게 이루어질 수 있게 해 준다.In more detail, as in the case of FIG. 3A, damage occurs in the brake pipeline 18 on the left side in communication with the pressure chamber 16 on the left side of the brake pipeline 18 or in the pipeline. The rod 22 of the interlocking member 20 is hinged by movement to the piston 14 on the right side that is normally operated even when the pipeline phenomenon caused by vapor phenomenon or water vapor is blocked and normal braking pressure supply cannot be achieved during braking. The piston 14 on the opposite left side with respect to the point 24 is allowed to perform normal operation so that the overall braking can be performed smoothly.

또한 상기와는 반대로 도 3의 (b)의 경우와 같이, 상기 브레이크 파이프라인(18)중 우측의 압력실(16)과 연통된 우측의 브레이크 파이프라인(18)에서 손상이 생겨 제동시 정상적인 제동압유의 공급이 이루어지지 못하더라도 상기의 경우와 동일하게 연동부재(20)의 로드(22)가 힌지지점(24)을 중심으로 움직여 반대쪽인 우측의 피스톤(14)을 정상적으로 작동시켜 원활한 제동을 초래할 수 있게 된다.In contrast to the above, as in the case of FIG. 3B, damage occurs in the brake pipeline 18 on the right side in communication with the pressure chamber 16 on the right side of the brake pipeline 18. Even if the supply of the dynamic pressure oil is not made, the rod 22 of the interlocking member 20 moves about the hinge support point 24 in the same manner as in the above-mentioned case to normally operate the piston 14 on the opposite side to cause smooth braking. It becomes possible.

이상 설명한 바와 같이 본 발명에 따른 디스크 브레이크의 제동력 보완장치에 의하면, 제동시 브레이크 파이프라인(18)중 어느 한 곳에서 손상이 생기더라도 연동부재(20)를 매개로 양쪽 피스톤(14)이 정상적으로 작동될 수 있게 됨으로써, 제동의 안정성이 보장되는 효과가 있게 된다.As described above, according to the braking force compensator for the disc brake according to the present invention, even when damage occurs in any one of the brake pipelines 18 during braking, both pistons 14 operate normally through the interlocking member 20. By doing so, there is an effect of ensuring the stability of the braking.

Claims (1)

제동시 디스크 로터(10)의 회전을 저지시키도록 이의 양쪽 선단부위에 대향되게 설치되는 패드(12)와, 이 양측의 패드(12)를 각기 가압하도록 설치되는 피스톤(14), 이 양측의 피스톤(14)에 제동유압을 각기 가하도록 마련된 압력실(16), 이 양측의 압력실(16)내로 제동시 제동압유를 공급하도록 마스터실린더로부터 각 압력실(16)에 까지 각기 분지되게 연결된 브레이크 파이프라인(18)을 구비한 디스크 브레이크에 있어서, 상기 양측 피스톤(14)은 각기 피스톤(14)과 선단부가 고정된 로드(22)와, 이 로드(22)의 일측이 힌지지점(24)을 중심으로고정장착된 연동부재(20)를 매개로 연결되어 양측의 피스톤(14)을 디스크 로터(10)쪽을 향해 동일한 방향으로 움직일 수 있도록 된 것을 특징으로 하는 디스크 브레이크의 제동력 보완장치.Pads 12, which are provided opposite to both front end portions thereof to prevent rotation of the disc rotor 10 during braking, pistons 14, which are installed to press the pads 12 on both sides, respectively, and the pistons on both sides ( A pressure pipe 16 provided to apply brake hydraulic pressure to the brake cylinder 14, and a brake pipe connected to the pressure chamber 16 from the master cylinder to each pressure chamber 16 so as to supply braking pressure oil when braking into the pressure chambers 16 on both sides thereof. In the disc brake provided with the line 18, the two pistons 14 each have a rod 22 having a piston 14 and a tip end fixed thereon, and one side of the rod 22 centered on a hinge support point 24. Brake force complementing device of the disc brake, characterized in that it is connected via a fixedly mounted interlocking member (20) to move the piston (14) on both sides in the same direction toward the disc rotor (10).
KR1019970044178A 1997-08-30 1997-08-30 Apparatus to increase braking power for disk brake KR100268078B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100946859B1 (en) * 2008-05-22 2010-03-09 현대자동차주식회사 Calliper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100946859B1 (en) * 2008-05-22 2010-03-09 현대자동차주식회사 Calliper

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