KR100254415B1 - Disc brake cylinder structure - Google Patents

Disc brake cylinder structure Download PDF

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Publication number
KR100254415B1
KR100254415B1 KR1019970021425A KR19970021425A KR100254415B1 KR 100254415 B1 KR100254415 B1 KR 100254415B1 KR 1019970021425 A KR1019970021425 A KR 1019970021425A KR 19970021425 A KR19970021425 A KR 19970021425A KR 100254415 B1 KR100254415 B1 KR 100254415B1
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South Korea
Prior art keywords
pressurizing
piston
brake
locking
cylinder
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KR1019970021425A
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Korean (ko)
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KR19980085365A (en
Inventor
김진석
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정몽규
현대자동차주식회사
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Priority to KR1019970021425A priority Critical patent/KR100254415B1/en
Publication of KR19980085365A publication Critical patent/KR19980085365A/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
    • 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
    • F16D2127/00—Auxiliary mechanisms
    • F16D2127/06—Locking mechanisms, e.g. acting on actuators, on release mechanisms or on force transmission mechanisms
    • 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
    • F16D2129/00—Type of operation source for auxiliary mechanisms
    • F16D2129/02—Fluid-pressure

Abstract

PURPOSE: A braking system is provided to prevent an accident by stopping a vehicle during hydraulic leakage caused by the damage of a brake hose. CONSTITUTION: A braking system contains a caliper(2) fixed to a vehicle body; a disc(4) rotating with an axle; a piston(6) pressurizing the disc; and a brake device embedded in the piston to brake a vehicle. The braking device consists of a locking device released from a hydraulic chamber(12) and a pressurizing device pressurizing the disc when the locking device is released. The locking device comprises a chamber(26) connected to the hydraulic chamber, a channel(24) and the piston; a locking member(28) of which one end is protruded inward the piston and the other end is contacted with the inner circumference of a body portion(26); and an elastic member(30) between the locking member and the piston. The pressurizing device consists of a pressurizing member and an elastic member(34). The pressurizing member is contacted with one end of the locking member while movably stuck to the inner circumference of a cylinder(10) and the elastic member gives strong elasticity to the pressurizing member, between the pressurizing member and the cylinder. Oil is filled between the pressurizing member and a plate(18). When brake fluid leaks, negative pressure is generated from the hydraulic chamber and the pressure of the body portion is decompressed. The elastic member releases the locking member against negative pressure. At that time, the pressurizing device pressurizes the plate and the disc to be frictionized with a pad(22).

Description

차량용 제동장치Vehicle braking system

본 발명은 차량용 제동장치에 관한 것으로서, 보다 상세하게는 차량 운행중 브레이크 라인 파손시 자동으로 차량을 정지시킬 수 있는 차량용 제동장치에 관한 것이다.The present invention relates to a vehicle braking device, and more particularly, to a vehicle braking device that can automatically stop the vehicle when the brake line breaks during vehicle operation.

일반적으로 차량에서 브레이크는 회전체에 마찰력을 주어 그때 발산하는 열에너지를 대기로 방출함으로서, 회전체의 회전속도를 감속 또는 정지시키는 수단으로 사용된다.In general, a brake in a vehicle is used as a means for slowing or stopping the rotational speed of the rotating body by applying frictional force to the rotating body and releasing thermal energy emanating to the atmosphere.

이러한 차량에서 사용되는 브레이크는 로드나 와이어를 사용하는 기계식과 유압을 사용하는 유압식이 있다.The brakes used in these vehicles are mechanical using rod or wire and hydraulic using hydraulic pressure.

상기한 유압식은 페달을 밟으면 유압이 발생하는 마스터실린더와 이 마스터실린더와 브레이크 호스에 의해 연결되어 이에 의해 직접 제동작용을 하는 브레이크를 포함하여 이루어진다.The hydraulic type includes a master cylinder that generates hydraulic pressure when the pedal is pressed, and a brake that is connected by the master cylinder and the brake hose and thereby directly brakes.

도 3은 현재 사용중인 브레이크의 요부 단면도로서, 차체와 연결 고정되어 있는 켈리퍼(102)와 상기 켈리퍼(102)의 내측으로 유압에 의해 좌우로 이동하면서 가압력을 발생하는 실린더(104)와 상기 실린더(104)의 가압에 의해 패드(106)와 밀착되어 제동작용을 하는 디스크(108)를 포함하여 이루어진다.3 is a sectional view of main parts of a brake in use, and includes a caliper 102 fixed to a vehicle body and a cylinder 104 and a cylinder generating a pressing force while moving left and right by hydraulic pressure inside the caliper 102. It comprises a disk 108 in close contact with the pad 106 by the pressing of the brake 104 to perform a braking action.

상기한 브레이크는 페달을 밟으면 마스터실린더에서 발생한 유압이 피스톤(108)을 가압하여 패드(106)와 디스크(108)를 밀착시켜 마찰력에 의해 제동이 이루어진다.In the brake, when the pedal is pressed, hydraulic pressure generated in the master cylinder presses the piston 108 to bring the pad 106 and the disk 108 into close contact with each other, thereby braking by friction.

그러나 상기한 바와 같은 브레이크 장치는 브레이크 호스 파손등으로 인한 유압의 누유시 제동 작동이 되지 않아 안전사고를 유발시킬 수 있는 우려가 있다.However, there is a concern that the brake device as described above may cause a safety accident because the braking operation is not performed when the hydraulic oil leaks due to breakage of the brake hose.

따라서 본 발명은 상기한 문제점을 해결하기 위하여 안출된 것으로서, 본 발명의 목적은 브레이크 호스 파손등으로 인하여 유압의 누유시 브레이크를 제동시켜 차량을 정지시킴으로서, 안전사고를 방지할 수 있는 차량용 제동장치를 제공하는데 있다.Therefore, the present invention has been made to solve the above problems, an object of the present invention is to provide a vehicle braking device that can prevent a safety accident by stopping the vehicle by braking the brakes in the event of hydraulic leakage due to breakage of the brake hose, etc. To provide.

상기의 목적을 달성하기 위하여 본 발명은, 차체에 고정되고, 일측에 실린더가 형성되는 캘리퍼와; 회전하는 차축에 고정되어 같이 회전하는 디스크와; 상기한 캘리퍼의 실린더에 내장되어 유압에 의해 디스크를 캘리퍼 측으로 가압하는 피스톤과; 상기한 피스톤에 작용하는 유압에 의하여 제어되도록 피스톤과 디스크 사이에 설치되는 플레이트를 디스크에 가압하여 제동작용을 하는 제동수단을 포함하는 차량용 제동장치를 제공한다.In order to achieve the above object, the present invention, the caliper is fixed to the vehicle body, the cylinder is formed on one side; A disk fixed to the rotating axle and rotating together; A piston which is built in the cylinder of the caliper and pressurizes the disk to the caliper side by hydraulic pressure; It provides a vehicle braking device including a braking means for pressing the plate installed between the piston and the disk to the disk to be controlled by the hydraulic pressure acting on the piston to the braking action.

상기한 제동수단은 유압에 의해 록킹되고, 브레이크액의 압력저하시 록킹이 해제되는 록킹수단과; 상기 록킹수단에 의해 걸림상태로 있고, 록킹수단의 록킹해제시 플레이트를 디스크를 가압하여 제동작용을 하는 가압수단으로 이루어진다.The braking means is locked by the hydraulic pressure, the locking means for releasing the pressure drop of the brake fluid is released; The locking means is held by the locking means, and the pressing means is configured to press the disc to brake the locking means when the locking means is released.

상기한 록킹수단은 브레이크 유압라인으로 공급되는 유압이 작용하도록 구성된 챔버와; 상기 챔버에 작용하는 유압에 저항하는 방향으로 탄성부재를 개재하고, 이 챔버에 작용하는 유압에 의해 록킹상태를 유지하고, 유압이 일정압이하로 저하되면, 상기 탄성부재에 의해 록킹이 해제되는 록킹부재로 이루어진다.The locking means includes a chamber configured to actuate hydraulic pressure supplied to the brake hydraulic line; Interlocking the elastic member in a direction that resists the hydraulic pressure acting on the chamber, the locking state is maintained by the hydraulic pressure acting on the chamber, and the locking is released by the elastic member when the hydraulic pressure falls below a certain pressure. It consists of members.

상기한 가압수단은 피스톤에 길이방향으로 밀착 내장되어, 상기 록킹수단에 의해 록크상태로 있고, 록킹수단의 록킹 해제시 탄성부재에 의해 금속플레이트를 디스크에 가압하여 마찰력을 발생시키는 가압부재로 이루어진다.The pressing means is in close contact with the piston in the longitudinal direction, and is in a locked state by the locking means, and is made of a pressing member for generating a friction force by pressing the metal plate to the disc by the elastic member when the locking means is released.

도 1은 본 발명에 따른 차량용 제동장치의 요부 단면도.1 is a cross-sectional view of main parts of a braking device for a vehicle according to the present invention;

도 2는 본 발명에 따른 차량용 제동장치의 사용상태도.2 is a state diagram used in the braking device for a vehicle according to the present invention.

도 3은 종래 기술에 의한 차량용 제동장치의 요부 단면도.Figure 3 is a sectional view of the main portion of the conventional braking device for a vehicle.

이하, 첨부 도면을 참조하여 본 발명의 바람직한 일실시예를 상세하게 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 의한 차량용 브레이크의 단면도로서, 차체에 고정되는 캘리퍼(2)와 차축에 연결되어 같이 회전하는 디스크(4)와 상기 디스크(4)를 가압하여 제동작용을 하는 피스톤(6)과 상기 피스톤(6)에 내장되어 브레이크 유압의 압력저하시 제동작용을 하는 제동수단을 포함한다.1 is a cross-sectional view of a brake for a vehicle according to the present invention, a caliper 2 fixed to a vehicle body and a disk 4 connected to an axle to rotate together with a piston 6 for pressurizing the disk 4 to brake. And a braking means built in the piston 6 to brake the pressure of the brake hydraulic pressure.

상기한 캘리퍼(2)는 차체의 일측에 고정되고, 내측 일단에 디스크(4)의 일측과 마찰하는 패드(8)가 고정되고, 타측으로 실린더(10)가 형성된다.The caliper 2 is fixed to one side of the vehicle body, and a pad 8 that rubs against one side of the disk 4 is fixed to an inner end thereof, and the cylinder 10 is formed on the other side.

상기한 디스크(4)는 차축과 연결되어 차축과 같이 회전하는 금속판으로, 일단이 상기 캘리퍼(2)에 삽입되어 피스톤(6)의 가압력에 의해 패드(8)와 마찰하여 제동작용을 한다.The disk 4 is a metal plate which is connected to the axle and rotates like the axle. One end of the disc 4 is inserted into the caliper 2 to friction with the pad 8 by the pressing force of the piston 6 to brake.

상기한 캘리퍼의 실린더(10)에 좌우로 이동 가능하게 삽입되어 브레이크유압에 의해 제동작용을 하는 피스톤(6)은 실리더와의 사이에 유압이 압입되는 유압챔버(12)가 형성되고, 외측 둘레방향으로 유압의 누유를 방지하는 오일시일(14)이 삽입된다.The piston 6 which is inserted into the cylinder 10 of the caliper so as to be movable left and right and brakes by brake hydraulic pressure is formed with a hydraulic chamber 12 into which hydraulic pressure is pressed between the cylinder and the outer circumference. The oil seal 14 which prevents hydraulic leakage in the direction is inserted.

상기한 유압챔버(12)는 브레이크 패달의 작동에 의해 마스터실린더(미도시)에서 발생되는 유압이 압입되어 실린더(12)를 가압하여 캘리퍼(2)와 디스크(4)에 마찰력을 부여하고, 이 유압챔버(12)에 유압 해제시 리턴스프링(16)에 의해 실린더(6)는 원위치로 복귀한다.The hydraulic chamber 12 is pressurized by the hydraulic pressure generated in the master cylinder (not shown) by the operation of the brake pedal to press the cylinder 12 to impart a friction force to the caliper (2) and the disk (4), The cylinder 6 returns to its original position by the return spring 16 when the hydraulic pressure is released to the hydraulic chamber 12.

상기 유압챔버(12)와 반대측 일단으로 플레이트(18)가 스플라인결합(20)된다.The plate 18 is splined to the one end opposite to the hydraulic chamber 12.

상기한 금속플레이트(18)는 피스톤(6)의 축방향으로 좌우로 이동 가능하게 스플라인결합되어 있고, 타측으로 패드(22)가 장착된다.The metal plate 18 is splined to the left and right to move in the axial direction of the piston 6, the pad 22 is mounted on the other side.

이러한 실린더의 내측 공간에 형성되는 제동수단은 상기 유압챔버(12)와 연결되어 유압의 압력저하시 록킹이 해제되는 록킹수단과, 상기 록킹수단에 의해 걸림되어 록킹수단의 록킹해제시 디스크(4)를 가압하여 제동작용을 하는 가압수단 등으로 구성된다.The braking means formed in the inner space of the cylinder is connected to the hydraulic chamber 12, the locking means for releasing the pressure drop of the hydraulic pressure, and the locking means to be locked by the locking means disk (4) It is composed of a pressing means for pressurizing the braking action.

상기한 록킹수단은 상기 유압챔버(12)와 유로(24)로 연결되고, 실린더(6)의 내측과 연결되는 챔버(26)와 상기 챔버(26)에 내장되어 일단은 실린더(6)의 내측으로 돌출되고, 타단은 바디부(26)의 내주연과 접촉하는 피스톤 역할을 하는 록킹부재(28)와, 이 록킹부재(28)와 피스톤(6)과의 사이에 개제되어 일정 유압 이하에서 작용하는 탄성부재(30)로 구성된다.The locking means is connected to the hydraulic chamber 12 and the flow path 24, and is built into the chamber 26 and the chamber 26 connected to the inner side of the cylinder 6, and one end thereof is the inner side of the cylinder 6. And the other end is interposed between the locking member 28 which serves as a piston for contacting the inner circumference of the body portion 26, and the locking member 28 and the piston 6 to operate under a predetermined hydraulic pressure. It is composed of an elastic member 30.

이러한 록킹수단은 유압챔버(12)내의 유압이 일정압력이하로 저하되면 탄성부재(30)에 의해 록킹부재(28)는 도면에서 보아 하측으로 이동하면서 가압수단의 걸림작용을 해제시킨다.In this locking means, when the hydraulic pressure in the hydraulic chamber 12 drops below a certain pressure, the locking member 28 moves downward by the elastic member 30 to release the locking action of the pressing means.

상기한 가압수단은 실린더(10)의 내주연에 좌우로 이동 가능하다 밀착되어 록킹부재(28)의 일단과 접촉되어 걸림작용되는 가압부재(32)와 상기 가압부재(32)와 실린더(10) 사이에 개제되어 가압부재(32)에 강한 탄성력을 부여하는 탄성부재(34)로 이루어지고, 상기 가압부재(32)와 플레이트(18) 사이에는 오일이 일정압을 유지하면서 채움되어 있다.The pressing means is movable left and right on the inner circumference of the cylinder 10 is in close contact with the one end of the locking member 28, the pressing member 32 and the pressing member 32 and the cylinder 10 It is formed between the elastic member 34 is provided between the imparting a strong elastic force to the pressing member 32, the oil is filled between the pressing member 32 and the plate 18 while maintaining a constant pressure.

이러한 제동수단의 록킹수단 및 가압수단의 작동상태를 도 2에서 도시하고 있다.2 shows an operating state of the locking means and the pressurizing means of the braking means.

상기한 록킹수단은 브레이크 호스파손등으로 인하여 브레이크액이 누유되면 브레이크압이 일정압 이하로 저하되거나 유압채버(12)내에 부압이 발생하게 된다. 이때 유압챔버(12)와 연결된 록킹수단의 바디부(26)가 부압 또는 일정압이하로 저하되고, 탄성부재(30)의 탄성력이 이를 극복하고 록킹부재(28)의 록킹을 해제시킨다.In the locking means, when the brake fluid leaks due to breakage of the brake hose or the like, the brake pressure is lowered below a predetermined pressure or negative pressure is generated in the hydraulic chamber 12. At this time, the body portion 26 of the locking means connected to the hydraulic chamber 12 is lowered to a negative pressure or below a certain pressure, the elastic force of the elastic member 30 overcomes this and releases the locking of the locking member 28.

이때 가압수단은 탄성부재(34)에 의해 가압부재(32)가 실린더내의 유압을 가압하게되고, 이 가압력을 받는 플레이트(18)는 디스크(4)를 가압하여 패드(22)와 마찰력을 발생시켜 제동작용을 한다.At this time, the pressing means is the pressing member 32 by the elastic member 34 to press the hydraulic pressure in the cylinder, the plate 18 subjected to this pressing force presses the disk 4 to generate a friction force with the pad 22 Braking action.

이와 같이 이루어진 본 발명에 의한 브레이크장치는 브레이크 호스 파손등으로 인하여 유압이 저하시 실린더에 설치되는 제동수단이 디스크를 가압하여 차량을 정지시킴으로서, 안전사고를 방지할 수 있는 이점이 있다.The brake device according to the present invention has the advantage of preventing the safety accident by stopping the vehicle by pressing the disk by the brake means installed in the cylinder when the hydraulic pressure is reduced due to breakage of the brake hose.

Claims (2)

캘리퍼를 구비한 차량의 제동장치에 있어서, 캘리퍼(2)의 실린더(12)에 조립된 피스톤(6)내에 탄성부재(34)로 탄지되게 설치된 가압부재(32)와, 상기 가압부재(32)를 피스톤(6)의 일측에 탄성부재(30)의 탄성력을 브레이크 오일압으로 극복하면서 록킹하게 설치된 록킹부재(28)와, 상기 피스톤(6)의 선단에 디스크(4)측으로 전진하게 금속 플레이트(18)가 스플라인 결합(20) 구조로 설치됨을 포함하여 이루어지는 차량용 제동장치.A braking device for a vehicle provided with a caliper, comprising: a pressing member 32 provided to be supported by an elastic member 34 in a piston 6 assembled to a cylinder 12 of a caliper 2, and the pressing member 32; The locking member 28 is installed to lock while overcoming the elastic force of the elastic member 30 on one side of the piston 6 with brake oil pressure, and the metal plate to advance to the disk 4 side at the tip of the piston 6. 18) is a vehicle braking device comprising a spline coupling 20 is installed. 제1항에 있어서, 록킹부재(28)는 브레이크 유압라인으로 공급되는 유압이 작용하도록 챔버(26)를 피스톤(6)에 형성하여 이루어지는 차량용 제동장치.2. The vehicle braking device according to claim 1, wherein the locking member (28) is formed by forming a chamber (26) on the piston (6) so that the hydraulic pressure supplied to the brake hydraulic line acts.
KR1019970021425A 1997-05-28 1997-05-28 Disc brake cylinder structure KR100254415B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8281905B2 (en) 2008-10-21 2012-10-09 Mando Corporation Caliper disc brake
KR101385055B1 (en) 2013-05-09 2014-04-14 현대모비스 주식회사 Brake apparatus for vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8281905B2 (en) 2008-10-21 2012-10-09 Mando Corporation Caliper disc brake
KR101385055B1 (en) 2013-05-09 2014-04-14 현대모비스 주식회사 Brake apparatus for vehicle

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