KR200264499Y1 - Structure of clutch master cylinder for car - Google Patents
Structure of clutch master cylinder for car Download PDFInfo
- Publication number
- KR200264499Y1 KR200264499Y1 KR2019990011856U KR19990011856U KR200264499Y1 KR 200264499 Y1 KR200264499 Y1 KR 200264499Y1 KR 2019990011856 U KR2019990011856 U KR 2019990011856U KR 19990011856 U KR19990011856 U KR 19990011856U KR 200264499 Y1 KR200264499 Y1 KR 200264499Y1
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- KR
- South Korea
- Prior art keywords
- cylinder body
- liner
- cap
- master cylinder
- piston valve
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
본 고안은 실린더 보디(22)와 피스톤밸브가 엔지니어링 플라스틱수지로 형성된 마스터 실린더에 관한 것으로, 피스톤밸브의 외경에 상당하는 내경을 갖는 라이너(25)의 일측 선단부에 실린더보디(22)에 형성된 오일유출공(22a)과 동심상의 오일유출공(26a)이 형성되어 그 외주면은 널링형성된 캡(26)을 씌워서 브레이징 용접한 뒤, 이것을 실린더보디(22) 사출성형시에 캡(26)이 내부에 위치되도록 인서트 사출하되, 라이너(25)가 실린더보디(22)의 축방향으로 유동하지 않도록 실린더보디(22)의 캡(26)반대측 라이너(25) 종단부와 대응되는 위치에는 단턱(27)을 형성하여, 피스톤밸브와의 접촉면의 평탄도가 열화되지 않도록 하여 압력형성이 잘되도록 하고, 실린더보디와 라이너사이의 결합력이 증대되도록 하여 큰압력에도 라이너가 위치이동하는 일이 발생하지 않도록 하는 것이다.The present invention relates to a master cylinder in which the cylinder body 22 and the piston valve are formed of engineering plastic resin, and the oil outflow formed in the cylinder body 22 at one end of the liner 25 having an inner diameter corresponding to the outer diameter of the piston valve. The oil outlet hole 26a concentric with the ball 22a is formed, and the outer circumferential surface thereof is covered with a knurled cap 26 to be brazed and then the cap 26 is positioned inside the cylinder body 22 during injection molding. Insert injection as possible, but a step 27 is formed at a position corresponding to the end of the liner 25 opposite the cap 26 of the cylinder body 22 so that the liner 25 does not flow in the axial direction of the cylinder body 22. Therefore, the flatness of the contact surface with the piston valve is not deteriorated so that the pressure can be formed well, and the coupling force between the cylinder body and the liner is increased, so that the liner does not shift position even at a large pressure. To so.
Description
본 고안은 실린더 보디와 피스톤이 엔지니어링 플라스틱수지로 형성된 마스터 실린더에 관한 것으로, 특히 외주면에 널링이 형성되어 중심부에 오일유출공이 형성된 캡이 일측종단에 일체로 용착된 금속재 라이닝을 일체로 인서트 사출하여 피스톤 밸브의 접촉면이 평탄하도록 하여 압력형성이 잘되도록 하는 자동차용 클러치 마스타 실린더의 구조에 관한 것이다.The present invention relates to a master cylinder in which a cylinder body and a piston are formed of an engineering plastic resin, and in particular, a knurling is formed on the outer circumferential surface thereof, and an oil injection hole is formed at the center of the cap. The present invention relates to a structure of a clutch master cylinder for an automobile in which the contact surface of the valve is flat so that pressure can be well formed.
일반적으로 차량의 클러치 장치에 장착되는 마스터 실린더는 주철이나 알루미늄을 주원료로 하여 주물성형이나 중력주조등으로 제조한 것으로, 실린더 보디(12)와, 상기 실린더 보디(12)의 내부에서 왕복운동하는 피스톤밸브(14)로 구성된다. 그러나, 상기한 바와 같은 종래의 주철이나 알루미늄재 마스터 실린더는 실린더 보디(12)를 정밀기계로 가공함으로써 작업이 불필요한 문제점이 있었고, 주물작업에 따른 작업 환경의 악조건과 기계가공에 따른 설비와 불필요 기술인력 보강문제가 대두되는 문제점과 아울러, 무거워서 자동차의 연비에 악영향을 미치는 등의 문제점이 있었다.In general, a master cylinder mounted on a clutch device of a vehicle is manufactured by casting molding or gravity casting using cast iron or aluminum as a main raw material, and includes a cylinder body 12 and a piston reciprocating inside the cylinder body 12. It consists of a valve 14. However, the conventional cast iron or aluminum master cylinder as described above has a problem that the work is unnecessary by machining the cylinder body 12 with a precision machine, the bad conditions of the working environment according to the casting work and the equipment and unnecessary technology according to the machining In addition to the problems of manpower reinforcement, and heavy, there were problems such as adversely affect the fuel efficiency of the car.
이에 따라, 상기한 바와 같은 문제점을 해결하기 위하여 상기 마스터 실린더를 내마모에 우수한 엔지니어링 플라스틱으로 제작하고 있으나, 현재 제작중인 엔지니어링 플라스틱제로 형성된 마스터 실린더는 압력형성이 잘되지 않는 문제점이 발생되고 있으며, 이는 응고과정에서 발생되는 합성수지의 수축력에 의해 피스톤 밸브 접촉면의 평탄도가 일정치 않아 생기는 작동 불량이다.Accordingly, in order to solve the problems as described above, the master cylinder is made of excellent engineering plastics for wear resistance, but the master cylinder formed of engineering plastics currently being manufactured has a problem in that pressure is not well formed. It is a malfunction caused by the non-uniformity of the piston valve contact surface due to the shrinkage force of the synthetic resin generated during the solidification process.
상기와 같은 문제점을 해결하기 위한 본 고안의 목적은 외주면에 널링이 형성되어 중심부에 오일유출공이 형성된 캡이 일측종단에 일체로 용착된 금속재 라이닝을 일체로 인서트 사출하여 피스톤 밸브의 접촉면이 평탄하도록 하여 압력형성이 잘되도록 하는 자동차용 클러치 마스타 실린더의 구조를 제공하는 데 있다An object of the present invention for solving the above problems is that the contact surface of the piston valve is formed by inserting a metal lining integrally welded to one end of the cap formed with a knurled ring formed on the outer circumferential surface of the center of the oil outflow hole To provide a structure of the clutch master cylinder for automobiles to ensure good pressure build-up
도 1은 종래의 마스터 실린더를 나타내는 단면도1 is a cross-sectional view showing a conventional master cylinder
도 2는 본 고안에 따른 마스터 실린더를 나타내는 단면도2 is a cross-sectional view showing a master cylinder according to the present invention
도 3은 본 고안에 따른 마스터 실린더의 캡을 나타내는 사시도3 is a perspective view showing a cap of the master cylinder according to the present invention
*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
22 : 실린더 보디 25 : 라이너22: cylinder body 25: liner
26 : 캡 27 : 단턱26: cap 27: step
이와 같은 목적을 달성하기 위한 본 고안의 실시 예를 하기에서 도면을 참조하여 상세하게 살펴본다.An embodiment of the present invention for achieving the above object will be described in detail with reference to the accompanying drawings.
도 2는 본 고안에 따른 자동차용 클러치 마스타 실린더의 구조를 나타내는 단면도이고, 도 3은 도 2의 캡을 나타내는 사시도로써, 실린더보디(22)에 형성된 오일유출공(22a)과 동심상의 오일유출공(26a)이 형성되고 외주면이 널링형성된 캡(도 3에 도시 ; 26)을 피스톤밸브의 외경에 상당하는 내경을 갖는 라이너(25)의 오일유출공(22a)측 종단부 외주로 씌워서 상기 캡(26)과 라이너(25)의 접합부를 브레이징 용접한 뒤, 이것을 실린더보디(22) 사출성형시에 캡(26)이 내부에 위치되도록 인서트 사출하되, 라이너(25)가 실린더보디(22)의 축방향으로 유동하지 않도록 실린더보디(22)의 캡(26)반대측 라이너(25) 종단부와 대응되는 위치에는 단턱(27)을 형성하여, 상기 라이너(25) 내부로 피스톤 밸브를 삽입한 것이다.Figure 2 is a cross-sectional view showing the structure of the clutch master cylinder for automobiles according to the present invention, Figure 3 is a perspective view showing the cap of Figure 2, the oil outflow hole 22a concentric with the oil outflow hole 22a formed in the cylinder body 22 A cap (shown in FIG. 3) having a 26a formed and a knurled outer circumferential surface thereof is covered with an outer circumference of the end of the oil outlet hole 22a side of the liner 25 having an inner diameter corresponding to the outer diameter of the piston valve. After brazing the joint of 26 and the liner 25, insert injection is carried out so that the cap 26 is positioned therein during the injection molding of the cylinder body 22, and the liner 25 is the shaft of the cylinder body 22. A step 27 is formed at a position corresponding to the end of the liner 25 opposite to the cap 26 of the cylinder body 22 so as not to flow in the direction, and a piston valve is inserted into the liner 25.
이와 같이 구성된 본 고안에 의하면, 실린더보디(22)의 사출성형시에 합성수지가 응고하면서 발생되는 수축력에 의하여 실린더보디(22) 내주면의 평탄도가 일정하지 않더라도 인서트되는 라이너(25) 및 캡(26)의 내주면에 의하여 피스톤밸브와의 접촉면의 평탄도가 열화되지 않고 우수한 상태를 유지할 수 있으므로 압력형성이 잘되고, 캡(26)의 외주면에 형성된 널링부(26a)와 실린더보디(22)의 단턱(27)에 의하여 실린더보디(22)와 라이너(25)의 결합력이 증대되므로 큰압력에도 라이너(25)가 위치이동하는 일이 발생하지 않으므로 실링성이 우수하게 되는 것이다.According to the present invention configured as described above, the liner 25 and the cap 26 are inserted even if the flatness of the inner peripheral surface of the cylinder body 22 is not constant due to the contraction force generated while the synthetic resin solidifies during the injection molding of the cylinder body 22. Since the flatness of the contact surface with the piston valve can be maintained in an excellent state without deterioration by the inner circumferential surface of), the pressure formation is good, and the stepped portion of the knurled portion 26a and the cylinder body 22 formed on the outer circumferential surface of the cap 26 is 27, the coupling force of the cylinder body 22 and the liner 25 is increased, so that the liner 25 is not moved even under a large pressure, so that the sealing property is excellent.
따라서, 본 고안에 의하면, 실린더보디의 사출성형시에 합성수지가 응고하면서 발생되는 수축력에 의하여 실린더보디 내주면의 평탄도가 일정하지 않더라도 인서트되는 라이너 및 캡의 내주면에 의하여 피스톤밸브와의 접촉면의 평탄도가 열화되지 않으므로 압력형성이 잘되어 제품이 성능이 향상되는 효과가 있고 제품의 불량율이 대폭 감소되므로 생산성이 향상되는 효과가 있고, 캡의 외주면에 형성된 널링부와 실린더의 단턱에 의하여 라이너가 실린더보디와 라이너사이의 결합력이 증대되므로 큰압력에도 라이너가 위치이동하는 일이 발생하지 않으므로 실린더의 실링성이 우수하게 되는 효과가 있는 것이다.Therefore, according to the present invention, even if the flatness of the inner peripheral surface of the cylinder body is not constant due to the contraction force generated when the synthetic resin solidifies during the injection molding of the cylinder body, the flatness of the contact surface with the piston valve by the inner peripheral surface of the liner and the cap to be inserted. It does not deteriorate, so the pressure is well formed and the performance of the product is improved, and the defective rate of the product is drastically reduced, so that the productivity is improved, and the liner is formed by the knurled part formed on the outer circumferential surface of the cap and the step of the cylinder. Since the bonding force between the and the liner is increased, since the liner does not move in position even under a large pressure, the sealing property of the cylinder is excellent.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019990011856U KR200264499Y1 (en) | 1999-06-29 | 1999-06-29 | Structure of clutch master cylinder for car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019990011856U KR200264499Y1 (en) | 1999-06-29 | 1999-06-29 | Structure of clutch master cylinder for car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19990035484U KR19990035484U (en) | 1999-09-06 |
| KR200264499Y1 true KR200264499Y1 (en) | 2002-02-19 |
Family
ID=54757422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019990011856U Expired - Fee Related KR200264499Y1 (en) | 1999-06-29 | 1999-06-29 | Structure of clutch master cylinder for car |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR200264499Y1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101442662B1 (en) * | 2013-02-22 | 2014-09-23 | 영산대학교산학협력단 | Brake master cylinder body |
-
1999
- 1999-06-29 KR KR2019990011856U patent/KR200264499Y1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR19990035484U (en) | 1999-09-06 |
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