KR100489429B1 - Piston valve use in a shock absorber - Google Patents

Piston valve use in a shock absorber Download PDF

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Publication number
KR100489429B1
KR100489429B1 KR10-2000-0075170A KR20000075170A KR100489429B1 KR 100489429 B1 KR100489429 B1 KR 100489429B1 KR 20000075170 A KR20000075170 A KR 20000075170A KR 100489429 B1 KR100489429 B1 KR 100489429B1
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KR
South Korea
Prior art keywords
valve
piston valve
shock absorber
intake
retainer
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KR10-2000-0075170A
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Korean (ko)
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KR20020045774A (en
Inventor
정문상
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주식회사 만도
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Priority to KR10-2000-0075170A priority Critical patent/KR100489429B1/en
Publication of KR20020045774A publication Critical patent/KR20020045774A/en
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Publication of KR100489429B1 publication Critical patent/KR100489429B1/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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • F16F9/348—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body
    • F16F9/3485—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body characterised by features of supporting elements intended to guide or limit the movement of the annular discs
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/3207—Constructional features
    • F16F9/3214—Constructional features of pistons
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • F16F9/348—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body
    • F16F9/3481—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body characterised by shape or construction of throttling passages in piston

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

본 발명은 쇽 업소버의 피스톤 밸브에 관한 것이다. 본 발명은 압축 유로와 인장 유로가 소정간격을 두고 다수 형성된 몸체와, 상기 몸체의 상면에 설치되어 압축 유로를 개폐시키는 인테이크 밸브와, 상기 인테이크 밸브의 상측에 차례로 설치되는 인테이크 스프링과 와셔 밸브를 구비하는 쇽 업소버의 피스톤 밸브에 있어서; 상기 와셔 밸브의 중앙부 하면에 상기 인테이크 스프링을 가압 지지하는 돌출부가 형성된 것을 특징으로 한다. 따라서 종래 방식에서 사용되던 부품중의 하나인 리테이너를 삭제할 수 있으므로, 리테이너의 삭제로 인한 제품 단가 및 부품 단순화로 생산성을 향상시키는 효과가 있다. The present invention relates to a piston valve of a shock absorber. The present invention includes a body having a plurality of compression passages and tension passages formed at predetermined intervals, an intake valve installed on an upper surface of the body to open and close the compression passage, and an intake spring and washer valve sequentially installed above the intake valve. In the piston valve of the shock absorber; A protrusion for pressing and supporting the intake spring may be formed on a lower surface of the central portion of the washer valve. Therefore, the retainer, which is one of the parts used in the conventional method, can be deleted, thereby improving productivity by simplifying the product cost and parts due to the deletion of the retainer.

Description

쇽 업소버의 피스톤 밸브{PISTON VALVE USE IN A SHOCK ABSORBER}피스톤 PISTON VALVE USE IN A SHOCK ABSORBER}

본 발명은 쇽 업소버의 피스톤 밸브에 관한 것으로서, 더욱 상세하게는 피스톤 밸브의 조립과정에서 리테이너가 누락되는 현상을 방지할 수 있도록 와셔 밸브의 구조를 개선한 쇽 업소버의 피스톤 밸브에 관한 것이다.The present invention relates to a piston valve of a shock absorber, and more particularly, to a piston valve of a shock absorber having an improved structure of a washer valve to prevent a retainer from being dropped during the assembly of a piston valve.

일반적으로 쇽 업소버(shock absorber)는 양단부가 차체와 바퀴에 고정되어 주행 중 노면과 접촉하는 바퀴로부터 전달되는 각종 진동이나 충격을 흡수하여 차체에 전달되지 않도록 함으로써 승차감 및 주행 안정성을 향상시키는 기능을 수행한다.In general, shock absorbers perform shock absorbing functions to improve ride comfort and driving stability by absorbing various vibrations or shocks transmitted from the wheels that are fixed to the vehicle body and the wheels, and transmitting them to the vehicle body. do.

도 1은 종래 쇽 업소버의 피스톤 밸브를 도시한 단면도로서, 피스톤 밸브(10)는, 원통형 튜브(2)의 내부를 따라 직선 왕복 운동하는 피스톤 로드(5)의 단부에 설치되어 원통형 튜브(2)의 내부를 인장챔버(3)와 압축챔버(4)인 2개의 공간부로 구획하고 있다.1 is a cross-sectional view showing a piston valve of a conventional shock absorber, wherein the piston valve 10 is installed at the end of the piston rod 5 which linearly reciprocates along the inside of the cylindrical tube 2, and has a cylindrical tube 2. The interior of the chamber is partitioned into two spaces, the tension chamber 3 and the compression chamber 4.

그리고 피스톤 밸브(10)의 몸체(11)에는 원통형 튜브(2)의 인장챔버(3)와 압축챔버(4)를 연통시키는 압축 유로(12)와 인장 유로(13)가 도 1에 도시된 바와 같이 수직으로 형성되어 있고, 몸체(11)의 상면에는 압축 유로(12)를 개폐시키는 단판의 인테이크 밸브(14)가 설치되어 있으며, 그 상부에는 리테이너(15), 인테이크 스프링(16), 와셔 밸브(17)가 차례로 설치된다. 그리고 몸체(11)의 하면에는 인장 유로(13)를 개폐시키는 다판 디스크(18)가 차례로 설치되어 있다.In the body 11 of the piston valve 10, a compression passage 12 and a tension passage 13 communicating the tension chamber 3 and the compression chamber 4 of the cylindrical tube 2 are shown in FIG. 1. It is formed vertically as described above, the upper surface of the body 11 is provided with a single plate intake valve 14 for opening and closing the compression passage 12, the upper portion of the retainer 15, intake spring 16, washer valve 17 are installed one by one. And the lower surface of the body 11 is provided with the multi-plate disc 18 which opens and closes the tension flow path 13 in order.

이와 같이 구성된 종래 쇽 업소버의 피스톤 밸브는, 피스톤 로드(5)의 직선 왕복 운동에 따라 튜브(2)의 내부를 직선 왕복 운동하면서, 튜브(2) 내부의 인장챔버(3)와 압축챔버(4) 사이에 압력 차를 발생시키게 된다. 따라서 인장챔버(3)와 압축챔버(4)의 압력 차에 의하여 인장챔버(3)와 압축챔버(4) 내부에 충진된 유체가, 피스톤 밸브(10)에 형성된 압축 유로(12)를 통해 단판의 인테이크 밸브(14)를 상방으로 밀어 올리고, 인장 유로(13)는 다판 디스크(18)를 하방으로 밀어 내리면서 순환 이동하는 과정을 통하여 일정한 감쇠력을 발생시키게 된다.The piston valve of the conventional shock absorber configured as described above linearly reciprocates the inside of the tube 2 according to the linear reciprocating motion of the piston rod 5, while the tension chamber 3 and the compression chamber 4 inside the tube 2 are moved. Pressure difference between the Therefore, the fluid filled in the tension chamber 3 and the compression chamber 4 by the pressure difference between the tension chamber 3 and the compression chamber 4 is cut through the compression flow path 12 formed in the piston valve 10. Push the intake valve 14 upward, and the tension passage 13 generates a constant damping force through the process of cyclically moving the multi-disc disk 18 downward.

그러나 이와 같이 구성된 종래의 쇽 업소버의 피스톤 밸브는 도 2에 도시된 바와 같이 조립 과정 중에 인테이크 스프링(16)과 인테이크 밸브(14)의 사이에 위치하는 리테이너(15)를 작업자가 누락시키는 경우가 다량으로 발생되어 피스톤 밸브(10)의 내구성에 상당한 악영향을 나타내는 문제점이 있다.However, in the piston valve of the conventional shock absorber configured as described above, as shown in FIG. 2, the operator often misses the retainer 15 positioned between the intake spring 16 and the intake valve 14. There is a problem that generates a significant adverse effect on the durability of the piston valve (10).

본 발명은 상술한 바와 같은 종래의 문제점을 해결하기 위한 것으로서, 피스톤 밸브의 조립 과정에서 리테이너가 누락되는 현상을 방지할 수 있도록 와셔 밸브의 구조를 개선한 쇽 업소버의 피스톤 밸브를 제공하는데 그 목적이 있다.The present invention is to solve the conventional problems as described above, the object of the present invention is to provide a piston valve of the shock absorber improved in the structure of the washer valve to prevent the retainer is missing during the assembly of the piston valve. have.

상기의 목적을 달성하기 위하여 본 발명은, 압축 유로와 인장 유로가 소정간격을 두고 다수 형성된 몸체와, 상기 몸체의 상면에 설치되어 압축 유로를 개폐시키는 인테이크 밸브와, 상기 인테이크 밸브의 상측에 차례로 설치되는 인테이크 스프링과 와셔 밸브를 구비하는 쇽 업소버의 피스톤 밸브에 있어서; 상기 와셔 밸브의 중앙부 하면에 상기 인테이크 스프링을 가압 지지하는 돌출부가 형성된 것을 특징으로 하는 쇽 업소버의 피스톤 밸브를 제공한다.In order to achieve the above object, the present invention, the compression passage and the tension passage is a plurality of bodies formed at a predetermined interval, the intake valve is installed on the upper surface of the body to open and close the compression passage, and installed in the upper side of the intake valve A piston valve of a shock absorber having an intake spring and a washer valve to be used; It provides a piston valve of the shock absorber, characterized in that a protrusion for pressing and supporting the intake spring on the lower surface of the central portion of the washer valve.

이하 첨부된 도면을 참조하여 본 발명에 따른 바람직한 실시예를 상세하게 설명한다. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 3은 본 발명에 따른 피스톤 밸브를 도시한 단면도이고, 도 4는 본 발명에 따른 피스톤 밸브를 도시한 일부 분리사시도이다.3 is a cross-sectional view showing a piston valve according to the present invention, Figure 4 is a partial exploded perspective view showing a piston valve according to the present invention.

본 발명에 따른 쇽 업소버의 피스톤 밸브는, 도 3에 도시되어 있는 바와 같이, 피스톤 밸브(20)의 몸체(22)에 인장 유로(28)가 몸체(22)를 관통한 상태로 복수 형성되고, 이 인장 유로(28)의 외측에는 복수의 압축 유로(27)가 형성된다.As shown in FIG. 3, the piston valve of the shock absorber according to the present invention is formed in plural in the state in which the tension passages 28 penetrate the body 22 in the body 22 of the piston valve 20, A plurality of compression passages 27 are formed outside the tension passages 28.

그리고 피스톤 밸브(20)의 몸체(22) 상면에는 압축 유로(27)를 개폐시키는 단판의 인테이크 밸브(23)가 설치되고, 그 상부에 순차적으로 인테이크 스프링(24), 와셔 밸브(25)가 설치된다. 그리고 몸체(22)의 하면에는 인장 유로(28)를 개폐시키는 다판 디스크(26)가 설치된다And the intake valve 23 of the single plate which opens and closes the compression flow path 27 is installed in the upper surface of the body 22 of the piston valve 20, and the intake spring 24 and the washer valve 25 are sequentially installed in the upper part. do. And the lower surface of the body 22 is provided with a multi-plate disk 26 for opening and closing the tension passage (28).

그리고 본 발명의 특징에 따라 와셔 밸브(25)의 중앙부 하면에는 종래 리테이너를 대신할 정도의 형상과 크기의 돌출부(25a)가 형성된다. In addition, according to a feature of the present invention, the bottom portion of the washer valve 25 is formed with a protrusion 25a having a shape and size sufficient to replace a conventional retainer.

이와 같이 구성된 본 발명에 따른 쇽 업소버의 피스톤 밸브(20)는, 다음과 같이 작동된다. 먼저, 압축 행정 시에는, 피스톤 밸브(20)가 원통형 튜브(2)의 내부를 따라 하방으로 이동하면서 압축챔버(4) 내부의 유체를 압축시키게 됨에 따라, 압축챔버(4) 내부의 유체가 도 3에 실선 화살표로 도시된 바와 같이, 압축 유로(27)로 유입된다. 이 때 압축 유로(27)로 유입된 유체는 단판의 인테이크 밸브(23)를, 그리고 와셔 밸브(25)의 돌출부(25a)에 가압 지지되어 있는 인테이크 스프링(24)을 상방으로 밀어 올리면서 인장 챔버(3)로 유입되어 감쇠력을 발생시키게 된다.The piston valve 20 of the shock absorber according to the present invention configured as described above is operated as follows. First, in the compression stroke, as the piston valve 20 compresses the fluid inside the compression chamber 4 while moving downwardly along the inside of the cylindrical tube 2, the fluid inside the compression chamber 4 is depressed. As shown by the solid arrow at 3, it flows into the compression flow path 27. At this time, the fluid flowing into the compression passage 27 pushes up the intake valve 23 of the end plate and the intake spring 24 which is pressurized and supported by the protrusion 25a of the washer valve 25 upwards. It enters (3) and generates damping force.

그리고 인장 행정 시에는, 인장챔버(3) 내부의 유체가 도 3에 점선 화살표로 도시된 바와 같이, 와셔 밸브(25)와 인테이크 밸브(23)의 슬릿을 통하여 인장 유로(28)로 유입되어 다판 디스크(26)를 하방으로 밀어 내리면서 압축챔버(4)로 유입되어 감쇠력을 발생시키게 된다During the tension stroke, the fluid inside the tension chamber 3 flows into the tension channel 28 through the slits of the washer valve 25 and the intake valve 23, as shown by the dashed arrows in FIG. 3. The disk 26 is pushed downward to enter the compression chamber 4 to generate a damping force.

상기와 같이 와셔 밸브(25)와 인테이크 밸브(23)의 사이에 위치되었던 종래의 리테이너를 삭제시켜, 부품수가 줄어 제품 단가가 낮아지고, 작업 공수가 줄어든다. By eliminating the conventional retainer that was positioned between the washer valve 25 and the intake valve 23 as described above, the number of parts is reduced, the cost of the product is lowered, and the man-hour is reduced.

이상에서는 본 발명을 특정의 바람직한 실시 예에 대하여 도시하고 또한 설명하였으나, 본 발명은 상술한 실시 예에 한정되지 아니하며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 이하 청구범위에 기재된 본 발명의 요지를 벗어남이 없이 다양한 변경실시가 가능할 것이다.Although the present invention has been illustrated and described with respect to certain preferred embodiments, the present invention is not limited to the above-described embodiments, and a person skilled in the art to which the present invention pertains has the present invention set forth in the claims below. Various modifications may be made without departing from the spirit of the invention.

이상에서 설명한 바와 같이 본 발명 쇽 업소버의 피스톤 밸브에 의하면, 종래 방식에서 사용되던 부품중의 하나인 리테이너를 삭제할 수 있으므로, 리테이너의 삭제로 인한 제품 단가 및 부품 단순화로 생산성을 향상시키는 효과가 있다. As described above, according to the piston valve of the shock absorber of the present invention, since the retainer, which is one of the parts used in the conventional method, can be deleted, there is an effect of improving productivity by the product cost and the simplified parts due to the removal of the retainer.

도 1은 종래 피스톤 밸브를 도시한 단면도. 1 is a cross-sectional view showing a conventional piston valve.

도 2는 종래 피스톤 밸브를 도시한 일부 분리사시도. Figure 2 is a partial exploded perspective view showing a conventional piston valve.

도 3은 본 발명에 따른 피스톤 밸브를 도시한 단면도.3 is a sectional view of a piston valve according to the present invention;

도 4는 본 발명에 따른 피스톤 밸브를 도시한 일부 분리사시도.4 is a partial exploded perspective view showing a piston valve according to the present invention.

＜도면의 주요부분에 대한 부호의 설명＞<Description of the code | symbol about the principal part of drawing>

2 : 원통형 튜브 3 : 인장챔버 2: cylindrical tube 3: tension chamber

4 : 압축챔버 20 : 피스톤 밸브4: compression chamber 20: piston valve

22 : 몸체 23 : 인테이크 밸브(Intake Valve)22: Body 23: Intake Valve

24 : 인테이크 스프링 25 : 와셔 밸브24: intake spring 25: washer valve

25a : 돌출부 26 : 다판 디스크25a: protrusion 26: multi-plate disc

27 : 압축 유로 28 : 인장 유로27: compression passage 28: tension passage

Claims (1)

압축 유로와 인장 유로가 소정간격을 두고 다수 형성된 몸체와, 상기 몸체의 상면에 설치되어 압축 유로를 개폐시키는 인테이크 밸브와, 상기 인테이크 밸브의 상측에 차례로 설치되는 리테이너와, 인테이크 스프링과, 와셔 밸브를 구비하는 쇽 업소버의 피스톤 밸브에 있어서,A body formed of a plurality of compression passages and tension passages at predetermined intervals, an intake valve installed on an upper surface of the body to open and close the compression passage, a retainer sequentially installed above the intake valve, an intake spring, and a washer valve. In the piston valve of the shock absorber provided, 상기 리테이너 대신에 상기 와셔 밸브의 중앙부 하면에 상기 인테이크 스프링을 가압 지지하는 돌출부를 형성하되, 이 돌출부의 크기 및 높이를 상기 리테이너에 대응하도록 형성하는 것을 특징으로 하는 쇽업소버의 피스톤 밸브.The piston valve of the shock absorber, characterized in that the projection is formed on the lower surface of the central portion of the washer valve in place of the retainer to pressurize and support the intake spring, the size and height of the projection to correspond to the retainer.
KR10-2000-0075170A 2000-12-11 2000-12-11 Piston valve use in a shock absorber KR100489429B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180128754A (en) * 2017-05-24 2018-12-04 주식회사 만도 Valve structure of a shock absorber

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06330976A (en) * 1993-05-10 1994-11-29 Fichtel & Sachs Ag Valve for hydraulic type cylindrical type shock absorber
JPH0814302A (en) * 1994-07-01 1996-01-16 Unisia Jecs Corp Valve structure of hydraulic shock absorber
KR970042913U (en) * 1995-12-15 1997-07-29 테이 Retainer integral formation structure of absorber piston

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06330976A (en) * 1993-05-10 1994-11-29 Fichtel & Sachs Ag Valve for hydraulic type cylindrical type shock absorber
JPH0814302A (en) * 1994-07-01 1996-01-16 Unisia Jecs Corp Valve structure of hydraulic shock absorber
KR970042913U (en) * 1995-12-15 1997-07-29 테이 Retainer integral formation structure of absorber piston

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180128754A (en) * 2017-05-24 2018-12-04 주식회사 만도 Valve structure of a shock absorber
KR102002607B1 (en) * 2017-05-24 2019-07-22 주식회사 만도 Valve structure of a shock absorber

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