KR200161297Y1 - Wheel cylinder for drum brake - Google Patents

Wheel cylinder for drum brake Download PDF

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Publication number
KR200161297Y1
KR200161297Y1 KR2019960066155U KR19960066155U KR200161297Y1 KR 200161297 Y1 KR200161297 Y1 KR 200161297Y1 KR 2019960066155 U KR2019960066155 U KR 2019960066155U KR 19960066155 U KR19960066155 U KR 19960066155U KR 200161297 Y1 KR200161297 Y1 KR 200161297Y1
Authority
KR
South Korea
Prior art keywords
piston
cylinder body
wheel cylinder
drum brake
long groove
Prior art date
Application number
KR2019960066155U
Other languages
Korean (ko)
Other versions
KR19980052974U (en
Inventor
정하승
Original Assignee
박문규
주식회사기아정기
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 박문규, 주식회사기아정기 filed Critical 박문규
Priority to KR2019960066155U priority Critical patent/KR200161297Y1/en
Publication of KR19980052974U publication Critical patent/KR19980052974U/en
Application granted granted Critical
Publication of KR200161297Y1 publication Critical patent/KR200161297Y1/en

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Classifications

    • 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
    • F16D65/22—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for pressing members apart, e.g. for drum 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
    • F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
    • F16D51/16—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis
    • F16D51/18—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes
    • F16D51/20—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes extending in opposite directions from their pivots
    • F16D51/24—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes extending in opposite directions from their pivots fluid actuated
    • 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
    • F16D2125/00—Components of actuators
    • F16D2125/02—Fluid-pressure mechanisms
    • F16D2125/04—Cylinders

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

Abstract

본 고안은 자동차용 드럼브레이크의 휠(Wheel)실린더구조에 관한 것으로서, 더욱 상세하게는 실린더바디(100)와 접촉하여 실린더바디(100)의 내측면에서 좌, 우로 직선왕복운동을 하는 피스톤(200)의 외경으로 장홈(210)을 형성하고 1차적으로는 더스트부트(Dust Boot)(300)에 이중 실링구조를 설치하여 이물질의 유입을 방지하고 일단 유입된 이물질은 피스톤(200)의 장홈(210)에 저장함으로서 피스톤(200)의 고착을 방지하도록 한 것이다.The present invention relates to a wheel cylinder structure of a drum brake for an automobile, and more particularly, a piston 200 which makes a linear reciprocating motion left and right on the inner side of the cylinder body 100 in contact with the cylinder body 100. Long groove 210 is formed by the outer diameter of the first), and a double sealing structure is first installed in the dust boot 300 to prevent the inflow of foreign substances, and the foreign matter once introduced is the long groove 210 of the piston 200. By storing in) will prevent the piston 200 from sticking.

Description

자동차용 드럼브레이크의 휠 실린더구조Wheel Cylinder Structure of Automobile Drum Brake

본 고안은 자동차용 드럼브레이크의 휠 실린더구조에 관한 것으로서, 더욱 상세하게는 실린더바디와 접촉하여 실린더바디의 내측면에서 좌, 우 직선왕복운동을 하는 피스톤의 외경으로 장홈을 형성하고 1차적으로는 더스트부트에 이중 실링구조를 설치하여 이물질의 유입을 방지하고 일단 유입된 이물질은 피스톤의 장홈에 저장함으로서 피스톤의 고착을 방지하도록 하는 자동차용 드럼브레이크의 휠 실린더구조에 관한 것이다.The present invention relates to a wheel cylinder structure of an automobile drum brake, and more particularly, to form a long groove with an outer diameter of a piston that is in contact with the cylinder body and performs a straight reciprocating movement left and right on the inner surface of the cylinder body. The installation of the double sealing structure in the dust boot to prevent the inflow of foreign matter and once the foreign matter is stored in the long groove of the piston relates to the wheel cylinder structure of the automobile drum brake to prevent the piston sticking.

일반적으로 자동차의 바퀴와 함께 고속으로 회전하는 드럼에 슈를 밀어 제동력을 발생시키는 드럼브레이크의 휠 실린더는 도1에 도시된 바와 같이 외부의 실린더바디(10)의 내부로 좌, 우 직선운동을 하는 피스톤(20)이 삽입설치되고 피스톤(20)과 실린더바디(10)에 접촉하여 더스트부트(30)가 설치되며 실린더바디(10)와 접촉하여 피스톤(20)의 일측 끝단으로 컵(40)이 설치되어 있다.In general, a wheel cylinder of a drum brake that generates a braking force by pushing a shoe to a drum that rotates at high speed together with a wheel of an automobile performs linear left and right movements inside the outer cylinder body 10 as shown in FIG. 1. The piston 20 is inserted and installed, the dust boot 30 is installed by contacting the piston 20 and the cylinder body 10, and the cup 40 is contacted with the cylinder body 10 by one end of the piston 20. It is installed.

따라서 이와 같이 종래에는 드럼브레이크의 작동시 실린더바디(10) 내부의 액압이 상승하고 이 액압에 의하여 피스톤(20)이 실린더바디(10)의 내측면을 따라 좌, 우 직선운동을 하게되면 실린더바디(10)와 피스톤(20)에 연결설치된 더스트부트(30)도 같이 연동하여 좌, 우로 직선운동을 하게 된다.Therefore, in the conventional method, when the drum brake operates, the hydraulic pressure inside the cylinder body 10 rises, and the piston 20 moves linearly along the inner surface of the cylinder body 10 by the hydraulic pressure. The dust boot 30 connected to the 10 and the piston 20 is also interlocked to make a linear movement left and right.

그러나 이와 같은 종래의 휠 실린더구조는 잦은 브레이크의 사용시 드럼 내부의 온도가 상승하고 더스트부트가 변형되어 변형된 더스트부트의 틈새로 마찰재 마모분등 이물질이 다량 침투하게 되어 피스톤과 실린더바디의 틈새에 끼임으로서 피스톤이 고착되는 문제점이 있었다.However, such a conventional wheel cylinder structure has a high temperature inside the drum when frequent brakes are used, the dust boot is deformed, and foreign material such as friction material wear penetrates into the gap between the piston and the cylinder body due to the deformation of the dust boot. As a result, there is a problem that the piston is stuck.

본 고안은 이와 같은 문제점을 개선하기 위하여 안출한 것으로서, 본 고안의 목적은 실린더바디와 접촉하여 실린더바디의 내측면에서 좌, 우 직선왕복운동을 하는 피스톤의 외경으로 장홈을 형성하고 1차적으로는 더스트부트에 이중 실링구조를 설치하여 이물질의 유입을 방지하고 일단 유입된 이물질은 피스톤의 장홈에 저장함으로서 피스톤의 고착을 방지하도록 하는 자동차용 드럼브레이크의 휠 실린더구조를 제공하는데 있다.The present invention is devised to improve such a problem, an object of the present invention is to form a long groove in the outer diameter of the piston to make a left and right linear reciprocating motion in the inner surface of the cylinder body in contact with the cylinder body and primarily The double boot structure is installed in the dust boot to prevent the inflow of foreign matters and once the foreign matters are stored in the long groove of the piston to provide the wheel cylinder structure of the automobile drum brake to prevent the piston from sticking.

도1은 종래 휠 실린더의 구조를 개략적으로 보인 단면도1 is a cross-sectional view schematically showing the structure of a conventional wheel cylinder

도2는 본 고안의 구조를 개략적으로 보인 단면도Figure 2 is a cross-sectional view schematically showing the structure of the subject innovation

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

100 : 실린더바디 200 : 피스톤100: cylinder body 200: piston

210 : 장홈 300 : 더스트부트210: long groove 300: dust boot

400 : 컵400: cup

이하, 본 고안을 첨부된 도면에 의하여 기술적 구성을 더욱 상세하게 설명하면 다음과 같다.Hereinafter, the technical configuration by the accompanying drawings of the present invention in more detail as follows.

도1은 본 고안의 구조를 개략적으로 보인 단면도로서, 실린더바디(100)의 내부로 좌, 우 직선운동을 하도록 피스톤(200)이 삽입설치되고 피스톤(200)과 실린더바디(100)에 접촉하여 더스트부트(300)가 설치되며 실린더바디(100)와 접촉하여 피스톤(200)의 일측 끝단으로 컵(400)이 설치되는 휠 실린더에 있어서, 상기 실린더바디(100)의 내측면으로 좌, 우 직선운동을 하는 피스톤(200)의 외경으로 장홈(210)을 형성하는 것을 구성상의 특징으로 한다.Figure 1 is a schematic cross-sectional view showing the structure of the present invention, the piston 200 is inserted into the linear body to the left and right linear movement into the interior of the cylinder body 100 is in contact with the piston 200 and the cylinder body 100 In the wheel cylinder in which the dust boot 300 is installed and the cup 400 is installed at one end of the piston 200 in contact with the cylinder body 100, left and right straight lines are formed on the inner surface of the cylinder body 100. It is characterized by the configuration of the long groove 210 to the outer diameter of the piston 200 to exercise.

이와 같이 본 고안은 드럼브레이크의 작동시 실린더바디(100) 내부의 액압이 상승하고 이 액압에 의하여 피스톤(200)이 실린더바디(100)의 내측면을 따라 좌, 우직선운동을 하게되면 이와 동시에 실린더바디(100)와 피스톤(200)에 연결설치된 더스트부트(300)도 같이 연동하여 좌, 우로 직선운동을 하게 된다.As such, the present invention increases the hydraulic pressure inside the cylinder body 100 during the operation of the drum brake. When the piston 200 moves left and right along the inner surface of the cylinder body 100 by the hydraulic pressure, The dust boot 300 connected to the cylinder body 100 and the piston 200 is also interlocked to perform a linear movement left and right.

또한 더스트부트(300)가 좌, 우 직선운동을 할때 더스트부트(300)의 내부로 이질이 유입되는데 이 이물질은 피스톤(200)의 외경으로 형성된 장홈(210)에 저장하도록 함으로서 피스톤(200)의 고착을 방지게 된다.In addition, when the dust boot 300 moves left and right in a straight line, foreign matter flows into the dust boot 300, and the foreign matter is stored in the long groove 210 formed by the outer diameter of the piston 200. It will prevent the seizure of.

이상과 같은 구조로 이루어지는 본 고안은 휠 실린더 내부로 설치되는 피스톤의 외경으로 장홈을 형성하고 1차적으로는 더스트부트에 이중 실링구조를 설치하여 이 물질의 유입을 방지하고 일단 유입된 이물질은 피스톤의 장홈에 저장함으로서 피스톤의 고착을 방지하도록 하는 매우 유용한 고안이다.The present invention having the structure as described above forms a long groove with the outer diameter of the piston installed inside the wheel cylinder, and primarily installs a double sealing structure in the dust boot to prevent the inflow of this material and once the foreign matter introduced into the piston It is a very useful design to prevent the piston from sticking by storing in the long groove.

Claims (1)

실린더바디(100)의 내부로 좌, 우 직선운동을 하도록 피스톤(200)이 삽입설치되고 피스톤과 실린더바디(100)에 접촉하여 더스트부트(300)가 설치되며 실린더 바디(100)와 접촉하여 피스톤의 일측 끝단으로 컵(400)이 설치되는 휠 실린더에 있어서, 상기 실린더바디(100)의 내측면으로 좌, 우 직선운동을 하는 피스톤(200)의 외경으로 장홈(210)을 형성하는 것을 특징으로 하는 자동차용 드럼브레이크의 휠 실린더 구조.The piston 200 is inserted into the cylinder body 100 to perform a left and right linear movement, and the dust boot 300 is installed by contacting the piston and the cylinder body 100, and the piston is in contact with the cylinder body 100. In the wheel cylinder in which the cup 400 is installed at one end of the wheel cylinder, the long groove 210 is formed by the outer diameter of the piston 200 which is linearly moved left and right to the inner surface of the cylinder body 100. The wheel cylinder structure of the automobile drum brake.
KR2019960066155U 1996-12-31 1996-12-31 Wheel cylinder for drum brake KR200161297Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019960066155U KR200161297Y1 (en) 1996-12-31 1996-12-31 Wheel cylinder for drum brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019960066155U KR200161297Y1 (en) 1996-12-31 1996-12-31 Wheel cylinder for drum brake

Publications (2)

Publication Number Publication Date
KR19980052974U KR19980052974U (en) 1998-10-07
KR200161297Y1 true KR200161297Y1 (en) 1999-11-15

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ID=19488074

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019960066155U KR200161297Y1 (en) 1996-12-31 1996-12-31 Wheel cylinder for drum brake

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Publication number Publication date
KR19980052974U (en) 1998-10-07

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