KR100392343B1 - Body valve of shock absorber - Google Patents

Body valve of shock absorber Download PDF

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Publication number
KR100392343B1
KR100392343B1 KR1019970074082A KR19970074082A KR100392343B1 KR 100392343 B1 KR100392343 B1 KR 100392343B1 KR 1019970074082 A KR1019970074082 A KR 1019970074082A KR 19970074082 A KR19970074082 A KR 19970074082A KR 100392343 B1 KR100392343 B1 KR 100392343B1
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KR
South Korea
Prior art keywords
body valve
passage
rebound
shock absorber
compression
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Application number
KR1019970074082A
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Korean (ko)
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KR19990054277A (en
Inventor
백종현
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주식회사 만도
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Priority to KR1019970074082A priority Critical patent/KR100392343B1/en
Publication of KR19990054277A publication Critical patent/KR19990054277A/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
    • F16F9/3207—Constructional features
    • F16F9/3235—Constructional features of cylinders
    • F16F9/325—Constructional features of cylinders for attachment of valve units
    • 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
    • F16F9/3271—Assembly or repair
    • 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

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

Abstract

PURPOSE: A body valve of a shock absorber is provided to improve ride comfort by absorbing shock and vibration transmitted to vehicle body and to stabilize damping force by forming a rebound passage and a compression passage formed to the body valve differently. CONSTITUTION: A storage chamber is formed between an outer tube and an inner tube and a piston is installed to the inner tube. A washer(2) is elastically installed to the upper part of a first body valve(1a) installed to the lower part of the piston, and a disk(3) and a retainer(4) are installed to the lower part of the washer(2). A compression passage(5) is formed to the outside of the first body valve(1a) and a first rebound passage(6a) is formed to the inside of the compression passage(5). A second body valve(1b) provided with a second rebound passage(6b) is installed to the lower side of the first body valve(1a). The first rebound passage(6a) and the second rebound passage(6b) are interconnected.

Description

쇽업쇼바의 보디밸브Shock Absorber Body Valve

본 발명은 차량의 운행도중 차체에 전달되는 진동이나 충격을 흡수하여 차체를 보호하면서 승차감을 양호하게 할 수 있도록 하는 쇽압쇼바에 있어서, 이의 보디밸브에 형성된 리바운드 유로와 컴프레션 유로를 다르게 형성하여 감쇠력을 보다 안정화시킬 수 있도록 한 쇽압쇼바의 보디밸브에 관한 것이다.The present invention provides a shock absorber for absorbing vibrations or shocks transmitted to a vehicle body while driving a vehicle to protect the vehicle body, thereby improving the riding comfort. The rebound flow path and the compression flow path formed in the body valve thereof are differently formed to reduce damping force. It relates to a body valve of a shock absorber that can be stabilized more.

일반적으로 차량의 차체에는 차륜으로부터 전달되는 진동이나 충격을 흡수하고 차체의 편심 기울어짐 방지와 승차감의 안정성을 도모하기 위하여 여러개의 쇽압쇼바를 설치하고 있었다.In general, in order to absorb vibrations and shocks transmitted from the wheels and to prevent eccentric tilt of the vehicle body and to stabilize the riding comfort, a number of shock absorbers were installed.

한편, 상기와 같이 설치되어 사용하는 쇽압쇼바는 2중의 원통관을 형성하여 저장실과 피스톤이 설치되는 리바운드실이 설치되고 이의 하부에는 쇽압쇼바의 감쇠력이 작용하는 작용부로 구성되어 있었는바, 종래의 쇽압쇼바는 도 1에서와 같이 보디밸브(101)의 리바운드 유로와 컴프레션 유로(102)가 동일하게 형성되어 있었고 이를 통하여 유압이 같은 유로로 이동하게 되므로써 피스톤의 운동속도가 클 경우 유로에의 저항이 커져 튜브내에 공동화 현상이 발생하게 되는 문제점이 있었다.On the other hand, the pressure shock absorber installed and used as described above has a double cylindrical tube, a rebound chamber in which a storage chamber and a piston are installed, and a lower part of the pressure shock absorber acts as a damping force of the pressure shock absorber. As shown in FIG. 1, since the rebound flow path and the compression flow path 102 of the body valve 101 are formed in the same manner, and the hydraulic pressure moves to the same flow path, the resistance to the flow path increases when the piston moves at a large speed. There was a problem that the cavitation phenomenon occurs in the tube.

본 발명은 상기와 같은 종래의 제반 문제점을 감안하여 안출한 것으로 량의 운행도중 차체에 전달되는 진동이나 충격을 흡수하여 차체를 보호하면서 승차감을 양호하게 할 수 있도록 하는 쇽압쇼바에 있어서, 이의 보디밸브에 형성된 리바운드 유로와 컴프레션 유로를 다르게 형성하여 감쇠력을 보다 안정화시킬 수 있도록 한 쇽압쇼바의 보디밸브를 제공하려는 것인바, 이를 이하에서 첨부한 도면에 의거하여 상세히 설명하면 다음과 같다.The present invention has been made in view of the above-mentioned problems in the related art, the body valve in the shock pressure bar to absorb the vibration or shock transmitted to the vehicle body during the driving of the amount to improve the ride comfort while protecting the vehicle body, The purpose of the present invention is to provide a body valve of a shock absorber configured to differently form a rebound flow path and a compression flow path formed in the bar so as to stabilize the damping force, which will be described below in detail with reference to the accompanying drawings.

도 1은 종래 발명의 구성을 나타내는 단면도.1 is a cross-sectional view showing a configuration of a conventional invention.

도 2는 본 발명의 단면도.2 is a cross-sectional view of the present invention.

도 3 및 도 4는 본 발명 보디밸브의 상하를 나타내는 발췌도.3 and 4 are excerpts showing the top and bottom of the body valve of the present invention.

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

1 : 보디밸브 2 : 와셔1: body valve 2: washer

3 : 디스크 4 : 리테이너3: disk 4: retainer

5 : 컴프레션 유로 6 : 리바운드 유로5: compression euro 6: rebound euro

외통과 내통의 사이에 저장실이 형성되고 내통에는 피스톤을 설치하며 이의 하부에 설치되는 제 1보디밸브(1a)의 상방에 와셔(2)를 탄력설치하고 하방에는 디스크(3)와 리테이너(4)를 설치한 것에 있어서, 상기 제 1보디밸브(1a)의 외측에는 컴프레션 유로(5)를 형성하고 이의 내측에는 제 1리바운드 유로(6a)를 형성하여(도 3참조), 상기 제 1보디밸브(1a) 하측에는 제 2리바운드 유로(6b)를 갖는 제 2보디밸브(1b)를 설치하여 상기 제 1리바운드 유로(6a)와 제 2리바운드 유로(6b)가 서로 연통되도록 구성된 것이다(도 2내지 도 4참조).A storage chamber is formed between the outer cylinder and the inner cylinder, a piston is installed in the inner cylinder, and a washer (2) is elastically installed above the first body valve (1a) installed below the disk and the disk (3) and the retainer (4) below. In this case, a compression passage 5 is formed outside the first body valve 1a and a first rebound passage 6a is formed inside the first body valve 1a (see FIG. 3). 1a) a second body valve 1b having a second rebound flow passage 6b is provided below the first rebound flow passage 6a and the second rebound flow passage 6b so as to communicate with each other (FIG. 2 to FIG. 2). 4).

이상과 같이 구성된 본 발명은 상기 도 2에서와 같이 외통과 내통에 설치된 피스톤이 차체의 충격등으로 인하여 하강하게 되면, 이의 압력에 의하여 유압이 제 1보디밸브(1a)의 컴프레션 유로(5)를 따라 이동하여 감쇠력이 발생되며 상기 피스톤이 복귀될 때에는 두개의 보디밸브(1)(2)에 서로 연통된 리바운드 유로(6a)(6b)를 따라 유압이 작용하게 되면서 상기 쇽압쇼바의 작용이 이루어지게 된다.According to the present invention configured as described above, as shown in FIG. 2, when the pistons installed in the outer cylinder and the inner cylinder are lowered due to the impact of the vehicle body, the hydraulic pressure is reduced by the pressure of the first body valve 1a. The damping force is generated by moving along the hydraulic pressure along the rebound flow paths 6a and 6b communicated with the two body valves 1 and 2 when the piston is returned. do.

이상과 같은 본 발명은 상기와 같이 리바운드 유로와 컴프레션 유로를 각각 별개로 형성하므로써 감쇠력의 변화율을 균일하게 하고 감쇠력의 안정화를 도모할 수 있게 되어 상기 쇽압쇼바의 성능을 향상시킬 수 있게 되는 등의 특징을 지닌 것이다.As described above, the present invention enables the rebound flow path and the compression flow path to be formed separately so that the rate of change of the damping force can be uniform and the damping force can be stabilized, thereby improving the performance of the shock absorber. Will have.

Claims (1)

외통과 내통의 사이에 저장실이 형성되고 내통에는 피스톤을 설치하며 이의 하부에 설치되는 제 1보디밸브(1a)의 상방에 와셔(2)를 탄력설치하고 하방에는 디스크(3)와 리테이너(4)를 설치한 것에 있어서, 상기 제 1보디밸브(1a)의 외측에는 컴프레션 유로(5)를 형성하고 이의 내측에는 제 1리바운드 유로(6a)를 형성하며, 상기 제 1보디밸브(1a) 하측에는 제 2리바운드 유로(6b)를 갖는 제 2보디밸브(1b)를 설치하여 상기 제 1리바운드 유로(6a)와 제 2리바운드 유로(6b)가 서로 연통되도록 구성됨을 특징으로 하는 쇽압쇼바의 보디밸브.A storage chamber is formed between the outer cylinder and the inner cylinder, a piston is installed in the inner cylinder, and a washer (2) is elastically installed above the first body valve (1a) installed below the disk and the disk (3) and the retainer (4) below. In this case, a compression passage 5 is formed outside the first body valve 1a and a first rebound passage 6a is formed inside the first body valve 1a. A body valve according to claim 9, wherein a second body valve (1b) having a second rebound flow passage (6b) is provided so that the first rebound flow passage (6a) and the second rebound flow passage (6b) communicate with each other.
KR1019970074082A 1997-12-26 1997-12-26 Body valve of shock absorber KR100392343B1 (en)

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KR1019970074082A KR100392343B1 (en) 1997-12-26 1997-12-26 Body valve of shock absorber

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KR1019970074082A KR100392343B1 (en) 1997-12-26 1997-12-26 Body valve of shock absorber

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KR19990054277A KR19990054277A (en) 1999-07-15
KR100392343B1 true KR100392343B1 (en) 2003-10-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030032474A (en) * 2001-10-18 2003-04-26 기아자동차주식회사 Base-Valve in Automobile Shock-Absorber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030032474A (en) * 2001-10-18 2003-04-26 기아자동차주식회사 Base-Valve in Automobile Shock-Absorber

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