KR20110136420A - Reservoir tank of brake master cylinder - Google Patents

Reservoir tank of brake master cylinder Download PDF

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Publication number
KR20110136420A
KR20110136420A KR1020100056412A KR20100056412A KR20110136420A KR 20110136420 A KR20110136420 A KR 20110136420A KR 1020100056412 A KR1020100056412 A KR 1020100056412A KR 20100056412 A KR20100056412 A KR 20100056412A KR 20110136420 A KR20110136420 A KR 20110136420A
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South Korea
Prior art keywords
reservoir
master cylinder
gasket
vent hole
brake master
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KR1020100056412A
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Korean (ko)
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KR101179425B1 (en
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김형배
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주식회사 만도
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Priority to KR1020100056412A priority Critical patent/KR101179425B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/16—Master control, e.g. master cylinders
    • B60T11/22—Master control, e.g. master cylinders characterised by being integral with reservoir
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/26—Reservoirs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)

Abstract

PURPOSE: A reservoir tank of a brake master cylinder is provided to reduce oil leak since a vent hole is arranged on the circumferential surface of a gasket. CONSTITUTION: A reservoir tank of a brake master cylinder comprises a body, a cap(40), and a gasket(30). A refueling port is formed on one side of the body. The cap is mounted on the refueling port and closes it. The gasket is interposed between the refueling port and the cap. The gasket comprises a vent hole to enable air to flow into the body. The vent hole is formed on the circumferential surface of the gasket.

Description

브레이크 마스터실린더의 리저버 탱크{RESERVOIR TANK OF BRAKE MASTER CYLINDER}Reservoir tank of brake master cylinder {RESERVOIR TANK OF BRAKE MASTER CYLINDER}

본 발명은 브레이크 마스터실린더의 리저버 탱크에 관한 것으로서, 더욱 상세하게는 차량 운행 시 진동 및 쏠림 현상이 발생했을 때 발생할 수 있는 누유를 방지하기 위한 리저버 탱크의 캡에 관한 것이다.The present invention relates to a reservoir tank of a brake master cylinder, and more particularly, to a cap of a reservoir tank for preventing leaks that may occur when vibration and tipping occurs during vehicle driving.

일반적으로 차량용 브레이크의 마스터실린더는 배력장치에서 작용하는 힘을 전달받아 유압으로 변환한 후 이를 휠실린더로 전달하여 제동력을 발생하는 장치로서, 그 동작을 간단히 설명하면 다음과 같다.In general, a master cylinder of a vehicle brake is a device for generating a braking force by receiving a force acting on the power unit and converting it into hydraulic pressure and then transferring it to a wheel cylinder.

운전자가 차량의 운전석에 마련된 브레이크 페달을 밟으면 그 힘이 배력장치로 전달되고, 배력장치에서는 진공과 대기의 기압차에 의해 페달에 처음 가해진 힘보다 배가된 힘으로 마스터실린더로 전달된다. 이와 같은 힘에 의해 마스터실린더 내에 설치되어 있는 두 개의 피스톤의 전진하게 되고, 이에 따라 오일이 차량의 휠 실린더로 전달되며, 전달된 유체의 압력에 의해 제동력이 발생하게 된다.When the driver presses the brake pedal provided in the driver's seat of the vehicle, the force is transmitted to the booster, and the booster is transmitted to the master cylinder by a force doubled by the force initially applied to the pedal by the differential pressure between the vacuum and the atmosphere. By this force, two pistons installed in the master cylinder are advanced, so that oil is transferred to the wheel cylinder of the vehicle, and a braking force is generated by the pressure of the transferred fluid.

통상의 리저버 탱크는 상부에 오일주입구가 형성된 탱크 본체와 오일주입구를 덮기 위한 가스켓 및 캡을 포함하여 구성된다. 탱크 본체 내의 오일 양은 마스터실린더의 피스톤이 운동함에 따라 변화되는데, 일례로 마스터실린더는 브레이크 패드의 마모 시 캘리퍼의 피스톤을 더 밀기 위해 오일 추가 공급이 필요하며, 이를 위해 가스켓에 슬릿(통기공)을 구비하여 탱크 본체 내부로 공기가 통하도록 하고 있다.  Conventional reservoir tank comprises a tank body with an oil inlet formed thereon and a gasket and cap for covering the oil inlet. The amount of oil in the tank body changes as the piston of the master cylinder moves, for example, the master cylinder needs an additional oil supply to push the piston of the caliper further when the brake pad wears out. It is provided so that air flows into the tank main body.

그러나 위와 같이 통기가 가능한 개방형 리저버 탱크의 경우, 차량 운행 시 발생하는 진동이나 쏠림 현상 또는 급가속이나 차량이 경사가 급한 곳을 주행할 때 오일이 이 통기공을 통해 리저버 탱크 외부로 누유되는 경우가 종종 발생하였다. However, in the case of the open reservoir tank which can be vented as described above, oil may leak out of the reservoir tank through the vent when driving or driving in a place with rapid acceleration or steepness, which occurs when driving the vehicle. Often occurred.

본 발명은 상술한 종래 기술에 착안한 것으로서, 본 발명의 목적은 리저버 탱크 내의 오일이 통기공을 통해 누유되는 것을 방지할 수 있도록 개선된 구조를 가지는 브레이크 마스터실린더의 리저버 탱크를 제공하는 데 있다.SUMMARY OF THE INVENTION The present invention has been made in view of the above-described prior art, and an object of the present invention is to provide a reservoir tank of a brake master cylinder having an improved structure to prevent oil in the reservoir tank from leaking through a vent hole.

상기 목적을 달성하기 위한 본 발명에 따른 브레이크 마스터실린더의 리저버 탱크는 내부에 오일이 저장되며 일측에 오일주입구가 형성되는 리저버 본체와 오일주입구에 장착되어 오입주입구를 밀폐하는 리저버 캡과, 오일주입구와 리저버 캡 사이에 개재되는 가스켓을 포함하되, 가스켓은 리저버 본체 내부로 공기가 통하도록 하는 통기공을 원주면에 구비한다. The reservoir tank of the brake master cylinder according to the present invention for achieving the above object is a reservoir cap and an oil inlet is installed in the reservoir body and the oil inlet is stored in the oil inlet and the oil inlet is formed on one side, and the oil inlet and Including a gasket interposed between the reservoir cap, the gasket is provided on the circumferential surface of the circumferential surface for venting air into the reservoir body.

또한, 본 발명에 따른 브레이크 마스터실린더의 리저버 탱크에 있어서 상기 가스켓은 리저버 캡의 내측 저면과 면접촉하는 실링부와, 실링부의 중앙측에 실링부와 단차지도록 상기 리저버 캡으로부터 이격되는 방향으로 돌출 마련되는 통기공부를 포함하고, 상기 통기공은 상기 통기공부의 측벽부에 마련된다. In addition, in the reservoir tank of the brake master cylinder according to the present invention, the gasket is provided with a sealing portion which is in surface contact with the inner bottom surface of the reservoir cap, and protrudes in a direction spaced apart from the reservoir cap so as to be stepped with the sealing portion at the center side of the sealing portion. It includes a ventilation hole, wherein the ventilation hole is provided in the side wall portion of the ventilation hole.

또한, 본 발명에 따른 브레이크 마스터실린더의 리저버 탱크에 있어서 상기 통기공부는 통기공측벽부와 통기공바닥부를 포함하고, 상기 통기공바닥부는 중앙이 상기 리저버 캡측으로 볼록하게 라운딩 돌출 마련된다. In addition, in the reservoir tank of the brake master cylinder according to the present invention, the vent hole includes a vent hole side wall part and a vent hole bottom part, and the vent hole bottom part is provided with a convex rounded protrusion toward the reservoir cap side.

본 발명에 따른 브레이크 마스터실린더의 리저버 탱크는 통기공을 가스켓의 원주면인 통기공측벽부에 마련함으로써 누유 현상을 현저하게 저감시킬 수 있으며, 나아가 가스켓의 바닥면을 중앙이 돌출되도록 라운딩시킴으로써 오일이 가스켓의 통기공을 통과하여 리저버 캡측으로 유입되더라도 다시 빠져나가기 용이하도록 하였다. The reservoir tank of the brake master cylinder according to the present invention can significantly reduce the leakage by providing a vent hole on the vent wall side wall, which is a circumferential surface of the gasket, and further, by rounding the bottom surface of the gasket to protrude from the center, Even though it passes through the vent hole of the gasket and flows into the reservoir cap side, it is easy to escape again.

도 1은 본 발명의 일 실시예에 따른 브레이크 마스터실린더의 리저버 탱크를 개략적으로 도시한 단면도이다.
도 2는 도 1의 부분 확대도이다.
도 3은 본 발명의 일 실시예에 따른 브레이크 마스터실린더의 리저버 탱크를 리저버 캡을 도시한 분해 사시도이다.1 is a cross-sectional view schematically showing a reservoir tank of a brake master cylinder according to an embodiment of the present invention.
FIG. 2 is a partially enlarged view of FIG. 1.
3 is an exploded perspective view illustrating a reservoir cap of a reservoir tank of a brake master cylinder according to an embodiment of the present invention.

이하, 본 발명의 바람직한 실시예를 첨부한 도면을 참조하여 상세히 설명하기로 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 일 실시예에 따른 차량용 브레이크 마스터실린더의 리저버 탱크 구성을 개략적으로 도시한 도면이며, 도 2는 도 1의 부분 확대도이다. 1 is a view schematically showing a reservoir tank configuration of a vehicle brake master cylinder according to an embodiment of the present invention, Figure 2 is a partially enlarged view of FIG.

도시한 바와 같이 본 발명의 일 실시예에 따른 브레이크 마스터실린더의 리저버 탱크(10)는 브레이크 마스터실린더(미도시)로 공급될 오일이 저장되는 리저버 본체(20)를 포함한다. As shown, the reservoir tank 10 of the brake master cylinder according to an embodiment of the present invention includes a reservoir body 20 in which oil to be supplied to the brake master cylinder (not shown) is stored.

리저버 본체(20)의 상부에는 오일을 주입하기 위한 오일주입구(22)가 형성되고, 리저버 본체(20)의 하부에는 브레이크 마스터실린더(미도시)와 오일소통을 위한 오일소통구(24)가 형성된다. An oil inlet 22 for injecting oil is formed in the upper portion of the reservoir body 20, and an oil communication hole 24 for oil communication with a brake master cylinder (not shown) is formed in the lower portion of the reservoir body 20. do.

원통형의 오일주입구(22)에는 도 2 및 도 3에 도시한 바와 같이 가스켓(30)과 리저버 캡(40)이 장착된다. As shown in FIGS. 2 and 3, a cylindrical oil inlet 22 is equipped with a gasket 30 and a reservoir cap 40.

가스켓(30)은 오일의 누유를 방지하도록 오일주입구(22)와 리저버 캡(40) 사이에 개재된다. 이를 위해 가스켓(30)은 소프트 합성수지 재질로 마련되며 링 형상을 갖는 가스켓링(31)과, 실질적으로 오일의 누유를 방지하는 가스켓가이드(32)를 포함한다. 가스켓가이드(32)는 가스켓링(31)보다 상대적으로 경도가 높은 합성수지 재질로 마련된다. The gasket 30 is interposed between the oil inlet 22 and the reservoir cap 40 to prevent oil leakage. To this end, the gasket 30 is made of soft synthetic resin material and includes a gasket ring 31 having a ring shape, and a gasket guide 32 substantially preventing oil leakage. The gasket guide 32 is made of a synthetic resin material having a relatively higher hardness than the gasket ring 31.

가스켓가이드(32)는 리저버 캡(40)의 내측 저면과 가스켓링(31)의 상면 사이에 개재된다. 이를 위해 가스켓가이드(32)는 리저버 캡(40)의 내측 저면 및 가스켓링(31)의 상면과 각각 상하측에서 면접촉하는 실링부(33)와, 실링부(33)의 중앙측에 마련되는 통기공부(35)를 포함한다. 실링부(33)의 상면 중앙에는 가압링홈(34)이 마련되어 있다. The gasket guide 32 is interposed between the inner bottom surface of the reservoir cap 40 and the top surface of the gasket ring 31. For this purpose, the gasket guide 32 is provided on the inner bottom surface of the reservoir cap 40 and the upper surface of the gasket ring 31 and the sealing portion 33 which is in surface contact on the upper and lower sides, respectively, and is provided at the center side of the sealing portion 33. It includes a vent hole (35). The pressing ring groove 34 is provided in the center of the upper surface of the sealing part 33.

통기공부(35)는 실링부(33)의 중앙측에 마련되며 실링부(33)와는 단차지도록 마련된다. 즉, 통기공부(35)는 도 2에 확대 도시한 바와 같이 리저버 캡(40)으로부터 이격되는 방향으로 실링부(33)로부터 돌출 마련되며, 통기공측벽부(35a)와 통기공바닥부(35b)로 이루어진다. The vent hole 35 is provided at the center of the sealing portion 33 and is provided to be stepped with the sealing portion 33. That is, the vent hole 35 is provided to protrude from the sealing portion 33 in the direction away from the reservoir cap 40, as shown in enlarged in Fig. 2, the vent hole side wall portion (35a) and the vent hole bottom portion (35b) )

본 실시예에 따르면 통기공측벽부(35a)에는 통기공(36)이 120°간격으로 세 개 마련된다. 이와 같이 가스켓의 원주면인 통기공측벽부(35a)에 마련되는 통기공(36)은 종래 바닥면에 마련될 때와 달리 오일 수면에 대해 직각 상태이기 때문에종래보다 상대적으로 오일이 리저버 캡측으로 빠져나올 가능성이 낮다. 본 실시예에서는 통기공을 통기공측벽부(35a)에 세 개 마련했으나 본 발명은 이에 한정되지 않으며, 나아가 통기공측벽부(35a)에 경사도를 줄 경우 오일 누수 가능성을 더욱 낮출 수도 있다.According to this embodiment, three ventilation holes 36 are provided at the ventilation hole side wall part 35a at 120 ° intervals. As described above, the vent hole 36 provided on the vent hole side wall portion 35a, which is a circumferential surface of the gasket, is at right angles to the surface of oil, unlike when it is provided on the bottom surface. It is unlikely to come out. In the present embodiment, three air vents are provided in the air vent side wall portion 35a, but the present invention is not limited thereto. Further, when the inclination is provided to the air vent side wall portion 35a, the possibility of oil leakage may be further lowered.

또한, 통기공바닥부(35b)는 중심이 가장자리보다 돌출된 형태를 가진다. 즉, 도 2에 도시한 바와 같이 중앙이 리저버 캡측으로 볼록하게 라운딩 돌출되어 있어서, 통기공(36)을 통해 오일이 유입되더라도 경사를 따라 들어온 통기공은 물론 다른 방향의 통기공을 통해서도 쉽게 빠져나갈 수 있도록 되어 있다. In addition, the vent hole bottom portion 35b has a shape in which the center protrudes from the edge. That is, as shown in Figure 2, the center is convex rounded protruding toward the reservoir cap side, even if the oil flows through the vent 36, it is easy to exit through the vents in the other direction as well as the vents entered along the slope. It is supposed to be.

도 1에서 미설명된 참조부호 26은 피스톤로드로서, 피스톤로드는 브레이크패달(미도시)의 조작으로 배력장치를 통해 마스터실린더에 전달되는 증폭된 힘에 의해 동작하여 오일을 차량의 휠실린더로 전달하며, 휠실린더에 전달된 유체의 압력은 제동력을 발생시킨다. Reference numeral 26, which is not described in FIG. 1, is a piston rod, and the piston rod is operated by an amplified force transmitted to the master cylinder through the booster by the operation of the brake pedal (not shown) to transfer oil to the wheel cylinder of the vehicle. The pressure of the fluid delivered to the wheel cylinder generates a braking force.

10..리저버 탱크 20..본체
22..오일소통구 30..가스켓
31..가스켓링 32..가스켓가이드
33..실링부 35..통기공부
35a..통기공측벽부 35b..통기공바닥부
36..통기공 40..리저버 캡10.Reservoir tank 20.Body
22.Oil communication port 30.Gasket
31..Gasket ring 32..Gasket guide
33. Sealing part 35. Ventilation part
35a. Ventilation side wall part 35b.
36 .. vent 40 .. reservoir cap

Claims (3)

내부에 오일이 저장되며, 일측에 오일주입구가 형성되는 리저버 본체와, 상기 오일주입구에 장착되어 오입주입구를 밀폐하는 리저버 캡과, 상기 오일주입구와 리저버 캡 사이에 개재되는 가스켓을 포함하되,
상기 가스켓은 리저버 본체 내부로 공기가 통하도록 하는 통기공을 원주면에 구비하는 브레이크 마스터실린더의 리저버 탱크.The oil is stored therein, and includes a reservoir body in which an oil inlet is formed at one side, a reservoir cap attached to the oil inlet to seal the inlet, and a gasket interposed between the oil inlet and the reservoir cap.
The gasket is a reservoir tank of a brake master cylinder having a circumferential surface of the vent hole to allow air to flow into the reservoir body. 제 1항에 있어서,
상기 가스켓은 리저버 캡의 내측 저면과 면접촉하는 실링부와, 실링부의 중앙측에 실링부와 단차지도록 상기 리저버 캡으로부터 이격되는 방향으로 돌출 마련되는 통기공부를 포함하고,
상기 통기공은 상기 통기공부의 측벽부에 마련되는 브레이크 마스터실린더의 리저버 탱크.The method of claim 1,
The gasket includes a sealing portion which is in surface contact with an inner bottom surface of the reservoir cap, and a ventilation hole protruding in a direction spaced from the reservoir cap so as to be stepped with the sealing portion at the center side of the sealing portion.
The vent hole is a reservoir tank of the brake master cylinder is provided in the side wall portion of the vent hole. 제 2항에 있어서,
상기 통기공부는 통기공측벽부와 통기공바닥부를 포함하고,
상기 통기공바닥부는 중앙이 상기 리저버 캡측으로 볼록하게 라운딩 돌출 마련되는 브레이크 마스터실린더의 리저버 탱크.The method of claim 2,
The venting part includes a venting side wall portion and a venting bottom portion,
Reservoir tank of the brake master cylinder is provided with a bottom portion of the vent hole protruding rounded convex toward the reservoir cap side.
KR1020100056412A 2010-06-15 2010-06-15 Reservoir tank of brake master cylinder KR101179425B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140093333A (en) * 2013-01-15 2014-07-28 주식회사 만도 Reservoir tank of brake master cylinder
KR101629751B1 (en) * 2015-12-07 2016-06-13 우진전기 주식회사 Apparatus for exausting pressure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140093333A (en) * 2013-01-15 2014-07-28 주식회사 만도 Reservoir tank of brake master cylinder
KR101629751B1 (en) * 2015-12-07 2016-06-13 우진전기 주식회사 Apparatus for exausting pressure

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