KR19980035791A - Car Shock Absorber - Google Patents

Car Shock Absorber Download PDF

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Publication number
KR19980035791A
KR19980035791A KR1019960054236A KR19960054236A KR19980035791A KR 19980035791 A KR19980035791 A KR 19980035791A KR 1019960054236 A KR1019960054236 A KR 1019960054236A KR 19960054236 A KR19960054236 A KR 19960054236A KR 19980035791 A KR19980035791 A KR 19980035791A
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KR
South Korea
Prior art keywords
cylinder
shock absorber
vehicle
piston
fluid
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KR1019960054236A
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Korean (ko)
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KR100268079B1 (en
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김판열
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박병재
현대자동차 주식회사
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Priority to KR1019960054236A priority Critical patent/KR100268079B1/en
Publication of KR19980035791A publication Critical patent/KR19980035791A/en
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Publication of KR100268079B1 publication Critical patent/KR100268079B1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details

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

Abstract

본 발명에 의한 자동차용 쇽 업소버는, 차량의 주행시 노면의 상태에 따라 차체측에 연결된 피스톤로드가 상하강하면서 실린더내의 유체의 압력에 의해 충격을 감쇠시키는 자동차용 쇽 업소버에 있어서, 상기 실린더(2)에는 그 중앙부(A)의 외주면에 상기 피스톤(4)이 하강하여 피스톤밸브(5)가 개방되면서 상기 중앙부(A)내에서 습동될 때 실린더(2)내의 유체가 압력이 낮은 상측으로 이동하도록 확대돌기부(2a)가 형성된 것을 특징으로 하므로 본 발명은 차량의 주행시 노면이 양호한 곳에서 감쇠력을 저하시켜 차량의 승차감이 향상되는 효과가 있다.An automobile shock absorber according to the present invention is an automobile shock absorber in which a piston rod connected to a vehicle body side moves up and down according to a state of a road surface while driving a vehicle, and attenuates an impact by a pressure of a fluid in the cylinder. ), When the piston (4) is lowered to the outer peripheral surface of the center portion (A) to open the piston valve (5) while sliding in the center portion (A) to move the fluid in the cylinder (2) to the upper side with a low pressure Since the enlarged protrusion 2a is formed, the present invention has the effect of reducing the damping force at a good road surface when the vehicle is traveling, thereby improving the riding comfort of the vehicle.

Description

자동차용 쇽 업소버Car Shock Absorber

본 발명은 자동차의 주행중 스프링이 받는 충격에 의해 발생하는 고유 진동을 흡수하여 진동을 빨리 감쇠시켜 승차감을 좋게 하기 위하여 장치된 자동차용 쇽 업소버에 관한 것으로, 특히 노면이 양호한 곳에서 감쇠력을 저하시켜 승차감을 향상시킨 자동차용 쇽 업소버에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a shock absorber for automobiles, which is designed to absorb natural vibrations caused by shocks received by springs while driving a vehicle, to quickly attenuate vibrations, and to improve ride comfort. It is related with the shock absorber for automobile which improved.

도 1 에 도시한 바와 같이, 자동차용 쇽 업소버는 가이드를 겸한 가늘고 긴 외통(1)을 조합시켜 내부에 차축측과 연결하는 실린더(2)와, 상기 실린더(2)내에서 상하 왕복운동하며 차체측에 연결된 피스톤로드(3)를 매개로 그 하단에 연결된 피스톤(4)과, 상기 피스톤(4)의 상하 왕복운동에 따라 실린더(2)의 내부에 가득 채워진 유체의 흐름을 단속하는 피스톤밸브(5)로 이루어져 있다.As shown in FIG. 1, the shock absorber for automobiles has a cylinder 2 which is connected to the axle side inside by combining an elongated outer cylinder 1 serving as a guide, and the vehicle body moving up and down in the cylinder 2. Piston 4 connected to the lower end via the piston rod (3) connected to the side and the piston valve for intermittent flow of the fluid filled inside the cylinder (2) in accordance with the up and down reciprocating motion of the piston ( It consists of 5).

그러나, 이와 같이 구성된 자동차용 쇽 업소버는 차량의 주행중 노면의 상태에 따라 피스톤(4)이 상하강 운동하며 자유진동하게 되는 바, 노면의 상태가 좋은 곳에서는 상기 피스톤(4)이 실린더(2)내의 대체로 중앙부에 위치하고, 그렇지 못할 경우에는 감쇠력이 큰 대체로 실린더(2)의 중앙부에 상측이나 하측에 위치하게 되는데, 종래의 쇽업소버는 노면이 양호한 곳에서는 감쇠력을 갖기 때문에 승차감이 좋지 못하다는 문제점이 있었다.However, in the shock absorber for automobiles configured as described above, the piston 4 moves freely while moving up and down according to the state of the road surface while the vehicle is traveling. In the place where the road surface is good, the piston 4 is the cylinder 2. In general, it is located in the center part, otherwise the damping force is large and is located in the upper part or the lower part of the center part of the cylinder 2. The conventional shock absorber has a damping force in the place where the road surface is good, so that the riding comfort is not good. there was.

따라서, 본 발명은 상기와 같은 문제점을 해결하기 위해 안출된 것으로써, 본 발명의 목적은 차량이 노면의 상태가 좋은 곳에서 주행할 때 낮은 감쇠력을 갖도록 구성하여 차량의 승차감을 향상시킨 자동차용 쇽 업소버를 제공하는 데 있다.Accordingly, the present invention has been made to solve the above problems, the object of the present invention is to configure the vehicle having a low damping force when driving on a good road surface condition to improve the ride comfort of the vehicle To provide an absorber.

상기와 같은 목적을 실현하기 위하여, 본 발명에 의한 자동차용 쇽 업소버는, 차량의 주행시 노면의 상태에 따라 차체측에 연결된 피스톤로드가 상하강하면서 실린더내의 유체의 압력에 의해 충격을 감쇠시키는 자동차용 쇽 업소버에 있어서, 상기 실린더에는 그 중앙부의 외주면에 상기 피스톤이 하강하여 피스톤밸브가 개방되면서 상기 중앙부내에서 습동될 때 실린더내의 유체가 압력이 낮은 상측으로 이동하도록 확대돌기부가 형성된 것을 특징으로 한다.In order to realize the above object, the automobile shock absorber according to the present invention is used for automobiles in which the piston rod connected to the vehicle body is damped by the pressure of the fluid in the cylinder while the piston rod connected to the vehicle body side moves up and down according to the state of the road surface when the vehicle is running. The shock absorber is characterized in that the cylinder has an enlarged protrusion formed on the outer circumferential surface of the central portion thereof so that the piston moves downward while the piston valve is opened and the fluid in the cylinder moves upward when the cylinder is swung in the central portion.

도 1 은 일반적인 자동차의 쇽 업소버를 도시한 종단면도,1 is a longitudinal sectional view showing a shock absorber of a typical vehicle;

도 2 는 본 발명에 의한 자동차용 쇽 업소버를 도시한 단면도,2 is a cross-sectional view showing a shock absorber for an automobile according to the present invention;

도 3 은 도 2의 B-B선에 따른 단면도이다.3 is a cross-sectional view taken along line B-B of FIG. 2.

*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

1 : 외통2 : 실린더1: outer cylinder 2: cylinder

2a : 확대돌기부A : 중앙부2a: Magnification protrusion A: center portion

3 : 피스톤로드4 : 피스톤3: piston rod 4: piston

5 : 피스톤밸브5: piston valve

도 2 는 본 발명에 의한 자동차용 쇽 업소버를 도시한 단면도로서, 본 발명에 의한 자동차용 쇽 업소버는 가이드를 겸한 가늘고 긴 외통(1)을 조합시켜 내부에 차축측과 연결하는 실린더(2)와, 상기 실린더(2)내에서 상하 왕복운동하며 차체측에 연결된 피스톤로드(3)를 매개로 그 하단에 연결된 피스톤(4)과, 상기 피스톤(4)의 상하 왕복운동에 따라 상기 실린더(2)의 내부에 가득 채워진 유체의 흐름을 단속하는 피스톤밸브(5)로 이루어져 있다.2 is a cross-sectional view showing a vehicle shock absorber according to the present invention, the vehicle shock absorber according to the present invention is a cylinder (2) connected to the axle side inside by combining an elongated outer cylinder (1) serving as a guide; The piston 2 is connected to the lower end of the cylinder via a piston rod 3 connected to the vehicle body and reciprocates up and down in the cylinder 2, and the cylinder 2 is in accordance with the up and down reciprocation motion of the piston 4. It consists of a piston valve (5) to regulate the flow of fluid filled in the interior of the.

이때, 상기 실린더(2)에는 그 중앙부(A)의 외주면에 상기 피스톤(4)이 하강하여 피스톤밸브(5)가 개방되면서 상기 중앙부(A)내에서 습동될 때 실린더(2)내의 유체가 압력이 낮은 상측으로 이동하도록 다수개의 확대돌기부(2a)가 형성되어 있다.At this time, when the piston (4) is lowered to the outer peripheral surface of the central portion (A) and the piston valve (5) is opened while sliding in the central portion (A), the fluid in the cylinder (2) is pressurized to the cylinder (2). A plurality of enlarged protrusions 2a are formed so as to move to the lower upper side.

다음에 이와 같이 구성된 본 발명의 작용에 대해 설명한다.Next, the operation of the present invention configured as described above will be described.

차량이 주행하게 되면 노면의 상태에 따라서 자체측과 차축측의 사이에 설치된 쇽 업소버가 압축 및 인장되는 바, 노면의 상태가 고른 길을 차량이 주행하게 될 경우 쇽 업소버의 실린더(2)내의 피스톤(4)은 상기 실린더(2)의 대체로 중앙부(A)에 위치하여 습동하게되고, 노면이 거친 경우에는 상기 중앙부(A)의 상측에서 하측으로 큰 스트로크를 형성하며 피스톤(4)이 상하강하게 된다.When the vehicle runs, the shock absorber installed between its own side and the axle side is compressed and tensioned according to the condition of the road surface. When the vehicle travels along the road with an even road condition, the piston in the cylinder (2) of the absorber (4) is generally located in the center portion (A) of the cylinder (2), the sliding, if the road surface is rough, forming a large stroke from the upper side to the lower side of the center portion (A) and the piston (4) is moved up and down .

이때, 노면이 고른 곳에서 차량이 주행할 경우 대개 상기 피스톤(4)은 실린더(2)의 중앙부(A)에서 상하 습동하면서 감쇠력이 생기게 되고, 이 감쇠력은 양호한 곳에서는 오히려 차량의 승차감을 저하시키기 때문에 상기 실린더(2)의 중앙부(A)의 외주면에 다수개 형성된 확대돌기부(2a) 및 상기 피스톤(4)이 하강하면서 개방되는 피스톤밸브(5)를 통해 유체가 이동하게 됨에 따라 그 감쇠력이 더 낮아져 차량의 승차감이 향상되는 것이다.At this time, when the vehicle is traveling on a road where the road surface is even, the piston (4) is usually a damping force generated by the vertical movement in the center portion (A) of the cylinder (2), the damping force is rather deteriorate the ride comfort of the vehicle Therefore, as the fluid moves through the enlarged protrusion part 2a formed on the outer circumferential surface of the center portion A of the cylinder 2 and the piston valve 5 opened while the piston 4 descends, the damping force is further increased. This lowers the ride comfort of the vehicle.

앞에서 설명한 바와 같이, 본 발명에 의한 자동차용 쇽 업소버에 의하면, 상기 실린더의 대체로 중앙부 외주면에 다수개의 확대돌기부를 형성하여 더 많은 유체를 압력이 낮은 곳으로 흐르게 함으로써, 차량의 주행시 노면이 양호한 곳에서 감쇠력을 저하시켜 차량의 승차감이 향상되는 효과가 있다.As described above, according to the vehicle shock absorber according to the present invention, by forming a plurality of enlarged protrusions on the outer peripheral surface of the center portion of the cylinder generally flows more fluid to a lower pressure, where the road surface is good when the vehicle is running The damping force is lowered, thereby improving the riding comfort of the vehicle.

Claims (2)

차량의 주행시 노면의 상태에 따라 차체측에 연결된 피스톤로드가 상하강하면서 실린더내의 유체의 압력에 의해 충격을 감쇠시키는 자동차용 쇽 업소버에 있어서, 상기 실린더(2)에는 그 중앙부(A)의 외주면에 상기 피스톤(4)이 하강하여 피스톤밸브(5)가 개방되면서 상기 중앙부(A)내에서 습동될 때 실린더(2)내의 유체가 압력이 낮은 상측으로 이동하도록 확대돌기부(2a)이 형성된 것을 특징으로 하는 자동차용 쇽 업소버.In a shock absorber for automobiles in which the piston rod connected to the vehicle body is moved up and down according to the state of the road surface while driving the vehicle, the shock is attenuated by the pressure of the fluid in the cylinder, and the cylinder 2 is provided on the outer circumferential surface of the center portion A thereof. When the piston (4) is lowered and the piston valve (5) is opened while sliding in the central portion (A) is characterized in that the enlarged projection (2a) is formed so that the fluid in the cylinder (2) moves to the upper side with a low pressure Car shock absorber. 제 1 항에 있어서, 상기 확대돌기부(2a)는 적어도 2개 이상 형성된 것을 특징으로 하는 자동차용 쇽 업소버.2. The shock absorber for automobile according to claim 1, wherein at least two enlarged protrusions are formed.
KR1019960054236A 1996-11-15 1996-11-15 Shock absorber for car KR100268079B1 (en)

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Application Number Priority Date Filing Date Title
KR1019960054236A KR100268079B1 (en) 1996-11-15 1996-11-15 Shock absorber for car

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Application Number Priority Date Filing Date Title
KR1019960054236A KR100268079B1 (en) 1996-11-15 1996-11-15 Shock absorber for car

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KR19980035791A true KR19980035791A (en) 1998-08-05
KR100268079B1 KR100268079B1 (en) 2000-10-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101035016B1 (en) * 2009-05-12 2011-05-17 주식회사 한국가스스프링 A gas-spring with a speed controller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101035016B1 (en) * 2009-05-12 2011-05-17 주식회사 한국가스스프링 A gas-spring with a speed controller
TWI391580B (en) * 2009-05-12 2013-04-01 Korea Gas Spring Co Ltd A gas-spring with a speed controller

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