KR100448777B1 - a vibration damping device for shock absorber of vehicles - Google Patents
a vibration damping device for shock absorber of vehicles Download PDFInfo
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- KR100448777B1 KR100448777B1 KR10-2001-0079394A KR20010079394A KR100448777B1 KR 100448777 B1 KR100448777 B1 KR 100448777B1 KR 20010079394 A KR20010079394 A KR 20010079394A KR 100448777 B1 KR100448777 B1 KR 100448777B1
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- South Korea
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- cylinder
- vibration
- shock absorber
- electromagnet
- supporter
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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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/26—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper characterised by adjusting or regulating devices responsive to exterior conditions
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/03—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using magnetic or electromagnetic means
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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
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/06—Magnetic or electromagnetic
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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
- F16F2230/00—Purpose; Design features
- F16F2230/08—Sensor arrangement
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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
- F16F2230/00—Purpose; Design features
- F16F2230/18—Control arrangements
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Vibration Prevention Devices (AREA)
Abstract
본 발명은 자동차의 쇽업소버 진동흡수장치에 관한 것으로, 코일스프링(103,106)에 의해 상하방향 모두 탄성지지되는 중량체(102)가 리니어베어링(101)을 매개로 실린더(10)에 장착되고, 상기 중량체(102)의 하부에 형성된 홈(102a)에 영구자석(108)이 장착되며, 이 영구자석(108)과 마주보는 위치에 전자석(107)이 설치되되, 이 전자석(107)은 상기 실린더(10)의 하부에 고정된 서포터(105)의 서포터로드(105a) 단부에 장착되며, 상기 전자석(107)은 가변저항기(111)와 극성전환스위치(112)를 통해 배터리에 연결되고, 상기 서포터(105)에 가속도센서(109)가 장착되며, 이 가속도센서(109)로부터 진동정보를 입력받아 상기 가변저항기(111)와 극성전환스위치(112)를 제어하는 제어유니트(110)가 구비되는 구조로 이루어진다.The present invention relates to a shock absorber vibration absorber of an automobile, wherein a weight body (102) elastically supported in both up and down directions by coil springs (103, 106) is mounted on a cylinder (10) via a linear bearing (101). The permanent magnet 108 is mounted in the groove 102a formed in the lower portion of the weight body 102, and the electromagnet 107 is installed at a position facing the permanent magnet 108, and the electromagnet 107 is the cylinder. It is mounted to the end of the supporter rod 105a of the supporter 105 fixed to the bottom of the 10, the electromagnet 107 is connected to the battery through the variable resistor 111 and the polarity switching switch 112, the supporter An acceleration sensor 109 is mounted on the 105, and the control unit 110 receives the vibration information from the acceleration sensor 109 and controls the variable resistor 111 and the polarity switching switch 112. Is made of.
따라서, 상기 제어유니트(110)가 가속도센서(109)를 통하여 실린더(10)의 상하방향 진동을 감지하고, 상기 가변저항기(111)와 극성전환스위치(112)를 제어하여 상기 영구자석(108)과 전자석(107)의 사이에 실린더(10)의 진동방향과 반대방향의 자력을 형성시킴으로써 중량체(102)를 실린더(10)의 진동방향에 대해 반대방향(동일크기)으로 이동시켜 쇽업소버를 통해 전달되는 진동을 흡수할 수 있게 된다.Accordingly, the control unit 110 detects the up and down vibration of the cylinder 10 through the acceleration sensor 109, and controls the variable resistor 111 and the polarity switching switch 112 to the permanent magnet 108 By forming a magnetic force in a direction opposite to the vibration direction of the cylinder 10 between the and the electromagnet 107, the weight body 102 is moved in the opposite direction (same size) to the vibration direction of the cylinder 10, thereby reducing the shock absorber. It can absorb the vibration transmitted through.
Description
본 발명은 자동차의 쇽업소버에 관한 것으로, 특히 쇽업소버를 통해 차체로 전달되는 진동을 저감시킬 수 있도록 된 자동차의 쇽업소버 진동흡수장치에 관한 것이다.The present invention relates to a shock absorber of a motor vehicle, and more particularly, to a shock absorber vibration absorber of a vehicle that can reduce the vibration transmitted to the vehicle body through the shock absorber.
일반적으로 자동차에는 차체를 지지하고, 차륜으로부터 차체로 전달되는 충격을 흡수하기 위해서 현가장치가 설치된다.Generally, a vehicle is provided with a suspension device for supporting a vehicle body and absorbing the shock transmitted from the wheel to the vehicle body.
상기 현가장치에는 리프스프링, 공기스프링, 쇽업소버 등이 주로 이용되는데, 승용차에서는 주로 쇽업소버가 사용되며, 중형 이상 대형 차량에서는 리프스프링을 기본으로 하고 여기에 공기스프링과 쇽업소버등을 추가로 장착하여 상호간의 부족한 현가특성을 보완할 수 있도록 하고 있다.The suspension device is mainly used for the leaf spring, air spring, shock absorber, etc. In passenger cars, the shock absorber is mainly used. In medium and large vehicles, the leaf spring is based on the leaf spring, and the air spring and the shock absorber are additionally installed. In order to compensate for each other's lacking suspension characteristics.
한편, 상기 쇽업소버는 일반적으로 도 1에 도시된 바와 같이, 내부에 오일이 충진된 실린더(10)와, 이 실린더(10) 내측으로 오일을 압축하면서 삽입되는 로드(11)로 이루어져 있으며, 실린더(10)의 상단과 로드(11)의 상부에는 각각 로워스프링시트(12)와 어퍼스프링시트(14)가 장착되고, 이들 사이에 코일스프링(13)이 설치되는 구조로 되어 있다.Meanwhile, the shock absorber generally includes a cylinder 10 filled with oil therein, and a rod 11 inserted while compressing oil into the cylinder 10, as shown in FIG. The lower spring sheet 12 and the upper spring sheet 14 are attached to the upper end of the upper part 10 and the upper part of the rod 11, respectively, and the coil spring 13 is provided between them.
그리고, 실린더(10) 하단의 부시(16)가 너클(또는 캐리어 ;17)에 장착되고, 상기 어퍼스프링시트(14)가 범퍼러버(15)를 사이에 두고 차체에 장착된다.The bush 16 at the lower end of the cylinder 10 is mounted to the knuckle (or carrier) 17, and the upper spring seat 14 is mounted to the vehicle body with the bumper rubber 15 interposed therebetween.
따라서, 차체의 하중을 지지하고, 주행시 차륜에 발생하는 상하방향의 충격을 흡수하여 차체로 전달되지 않도록 함으로써 승차감을 향상시키게 된다.Accordingly, the riding comfort is improved by supporting the load of the vehicle body and absorbing the up and down shocks generated in the wheels during driving so that it is not transmitted to the vehicle body.
그러나, 상기 쇽업소버가 큰 충격은 흡수할 수 있다 하더라도, 그 설치구조상 쇽업소버 자체가 차륜과 차체를 직접 연결하고 있기 때문에, 모든 진동을 흡수하는 것은 아니며 흡수되지 않은 진동은 차체로 전달될 수 밖에 없다.However, even though the shock absorber can absorb a large impact, the shock absorber itself directly connects the wheel and the vehicle body due to its installation structure. Therefore, the shock absorber does not absorb all the vibrations. none.
즉, 상기 쇽업소버는 차륜으로부터 차체로 전달되는 충격 및 진동을 흡수·차단하는 기능을 하지만, 구조상 불가피하게 차체로 진동이 전달되는 경로가 되고 있다는 것이다.That is, the shock absorber functions to absorb and block the shock and vibration transmitted from the wheel to the vehicle body, but is inevitably a path for vibration to be transmitted to the vehicle body.
따라서, 상기 쇽업소버의 진동흡수기능이 향상될 것이 요구되나, 쇽업소버 자체의 개선으로는 자신을 매질로 전달되는 진동의 흡수가 난해하다는 문제점이 있었다.Therefore, the vibration absorbing function of the shock absorber is required to be improved, but the improvement of the shock absorber itself has a problem in that absorption of vibration transmitted to the medium is difficult.
이에 본 발명은 상기와 같은 점을 감안하여 발명된 것으로, 쇽업소버를 매개체로 하여 차체로 전달되는 진동을 더욱 효율적으로 감소시킬 수 있도록 된 자동차의 쇽업소버 진동흡수장치를 제공함에 그 목적이 있다.Accordingly, the present invention has been made in view of the above, and an object of the present invention is to provide a shock absorber vibration absorbing device for a vehicle that can more efficiently reduce vibration transmitted to a vehicle body using a shock absorber as a medium.
도 1은 종래의 일반적인 쇽업소버와 이의 설치상태를 도시한 도면,1 is a view showing a conventional general shock absorber and its installation state,
도 2는 본 발명에 따른 쇽업소버 진동흡수장치의 구성 및 설치상태를 도시한 도면이다.2 is a view showing the configuration and installation state of the shock absorber vibration absorbing apparatus according to the present invention.
*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
10 : 실린더, 11 : 로드,10: cylinder, 11: rod,
12 : 로워스프링시트, 13 : 코일스프링,12: lower spring seat, 13: coil spring,
14 : 어퍼스프링시트, 101 : 리니어베어링,14: upper spring seat, 101: linear bearing,
102 : 중량체, 102a : 홈,102: weight, 102a: groove,
103 : 상부스프링, 104 : 스프링시트,103: upper spring, 104: spring seat,
105 : 서포터, 105a : 서포터로드,105: supporter, 105a: supporter rod,
106 : 하부스프링, 107 : 전자석,106: lower spring, 107: electromagnet,
108 : 영구자석, 109 : 가속도센서,108: permanent magnet, 109: acceleration sensor,
110 : 제어유니트, 111 : 가변저항기,110: control unit, 111: variable resistor,
112 : 극성전환스위치.112: polarity switch.
상기와 같은 목적을 달성하기 위한 본 발명은, 코일스프링에 의해 상하방향 모두 탄성지지되는 중량체가 리니어베어링을 매개로 실린더에 장착되고, 상기 중량체의 하부에 형성된 홈에 영구자석이 장착되며, 이 영구자석과 마주보는 위치에 전자석이 설치되되, 이 전자석은 상기 실린더의 하부에 고정된 서포터의 서포터로드 단부에 장착되며, 상기 전자석은 가변저항기와 극성전환스위치를 통해 배터리에 연결되고, 상기 서포터에 가속도센서가 장착되며, 이 가속도센서로부터 진동정보를입력받아 상기 가변저항기와 극성전환스위치를 제어하는 제어유니트가 구비되는 구조로 이루어진다.The present invention for achieving the above object, the weight body is elastically supported in both the vertical direction by the coil spring is mounted to the cylinder via a linear bearing, the permanent magnet is mounted in the groove formed in the lower portion of the weight body, An electromagnet is installed at a position facing the permanent magnet, which is mounted at the end of the supporter rod of the supporter fixed to the lower part of the cylinder, and the electromagnet is connected to the battery through a variable resistor and a polarity switching switch. An acceleration sensor is mounted, and receives a vibration information from the acceleration sensor and a control unit for controlling the variable resistor and the polarity switching switch is provided.
즉, 상기 제어유니트가 가속도센서를 통하여 실린더의 상하방향 진동을 감지하고, 상기 가변저항기와 극성전환스위치를 제어하여 상기 영구자석과 전자석의 사이에 실린더의 진동방향과 반대되는 방향의 자력을 형성시킴으로써 중량체를 실린더의 진동방향에 대해 반대방향으로 이동시켜 쇽업소버를 통해 전달되는 진동을 흡수할 수 있도록 된 것이다.That is, the control unit detects the vertical vibration of the cylinder through the acceleration sensor, and by controlling the variable resistor and the polarity switching switch to form a magnetic force in the direction opposite to the vibration direction of the cylinder between the permanent magnet and the electromagnet The weight is moved in the opposite direction to the vibration direction of the cylinder to absorb the vibration transmitted through the shock absorber.
이하, 본 발명을 첨부된 예시도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.
도 2는 본 발명에 따른 자동차의 쇽업소버 진동흡수장치의 구성 및 쇽업소버에 장착된 상태를 도시한 도면으로서, 쇽업소버 자체의 구조 및 장착구조는 종래와 동일하므로 동일한 도면부호를 부여하면서 그에 대한 설명은 생략하기로 한다.Figure 2 is a view showing the configuration of the shock absorber vibration absorbing device of the vehicle according to the invention and the state mounted on the shock absorber, the structure and mounting structure of the shock absorber itself is the same as the prior art while giving the same reference numerals for the The description will be omitted.
본 발명은 쇽업소버의 실린더(10)에 리니어베어링(101)을 매개로 장착되어 상하방향으로 이동가능한 중량체(102)를 포함하여 이루어지는데, 이 중량체(102)는 일종의 동흡진기(dynamic damper) 역할을 하며, 그 자체로서 쇽업소버를 통해 전달되는 진동을 저감시키는 역할을 수행한다.The present invention comprises a weight body (102) mounted on the cylinder (10) of the shock absorber via a linear bearing (101) and movable up and down. The weight body (102) is a kind of dynamic damper (dynamic damper). ) And itself reduces the vibration transmitted through the shock absorber.
상기 중량체(102)는 상하에 설치되는 코일스프링들에 의해 상하방향 모두 탄성지지되는데, 상부스프링(103)의 상부에는 쇽업소버의 로워스프링시트(12)에 밀착되면서 실린더(10)에 고정된 스프링시트(104)가 설치되고, 하부스프링(106)의 하부는 상기 실린더(10)의 하부에 고정장착된 서포터(105)에 의해 지지된다.The weight body 102 is elastically supported in both the up and down direction by the coil springs installed up and down, the upper spring 103 is fixed to the cylinder 10 while being in close contact with the lower spring seat 12 of the shock absorber The spring seat 104 is installed, and the lower portion of the lower spring 106 is supported by the supporter 105 fixedly mounted to the lower portion of the cylinder 10.
한편, 상기 중량체(102)의 하부에는 내측 상방으로 홈(102a)이 형성되는데,이 홈(102a)에는 영구자석(108)이 부착된다.On the other hand, the lower portion of the weight body 102 is formed with a groove 102a inwardly upward, the permanent magnet 108 is attached to the groove (102a).
또한, 상기 서포터(105)의 단부에는 수직상방으로 연장되어 상기 홈(102a) 내측으로 삽입된 서포터로드(105a)가 형성되며, 이 서포터로드(105a)의 홈(102a) 내측 단부에는 전자석(107)이 상기 영구자석(108)과 마주보도록 설치되며, 이 전자석(107)은 배터리로부터 전력을 공급받는다.In addition, a supporter rod 105a extending vertically upward and inserted into the groove 102a is formed at an end of the supporter 105, and an electromagnet 107 is formed at an inner end of the groove 102a of the supporter rod 105a. ) Is installed to face the permanent magnet 108, the electromagnet 107 is powered from the battery.
한편, 상기 서포터(105)에는 실린더(10)의 상하진동을 감지할 수 있도록 가속도센서(109)가 설치되고, 이 가속도센서(109)는 제어유니트(110)에 연결되어 있어, 측정정보를 제어유니트(110)로 전달한다.On the other hand, the supporter 105 is provided with an acceleration sensor 109 to detect the up and down vibration of the cylinder 10, the acceleration sensor 109 is connected to the control unit 110, to control the measurement information Transfer to unit 110.
또한, 상기 전자석(107)과 배터리를 연결하는 라인상에는 전자석(107)으로 공급되는 전류의 세기를 조절할 수 있도록 가변저항기(111)가 설치되고, 전자석(107)의 극성을 바꾸어줄 수 있도록 전자석(107)의 양단자에 공급되는 전력의 극성을 전환하여주는 극성전환스위치(112)가 설치되며, 이들 가변저항기(111)와 극성전환스위치(112)는 상기 제어유니트(110)에 의해 제어된다.In addition, the variable resistor 111 is installed on the line connecting the electromagnet 107 and the battery to adjust the strength of the current supplied to the electromagnet 107, the electromagnet (107) to change the polarity of the electromagnet (107) Polarity switching switch 112 for switching the polarity of the power supplied to both terminals of the 107 is provided, these variable resistor 111 and the polarity switching switch 112 is controlled by the control unit 110.
이제 본 발명의 작동을 설명한다.The operation of the present invention will now be described.
차량이 주행할 때 쇽업소버의 실린더(10)는 상하방향으로 끊임없이 진동한다. 이때 상기 중량체(102)는 자체의 관성으로써 실린더(10)의 진동을 억제하는 수동형 동흡진기로서 작용하게 된다.When the vehicle runs, the cylinder 10 of the shock absorber constantly vibrates in the up and down direction. At this time, the weight body 102 acts as a passive copper reducer to suppress the vibration of the cylinder 10 by its inertia.
그러나, 진동의 범위가 넓어지게 되면 상기 중량체(102)가 오히려 진동의 크기를 증가시킬 수도 있게 되는데, 이때는 상기 영구자석(108)과 전자석(107)의 작용에 의하여 중량체(102)가 실린더(10)의 진동상황에 적절한 거동을 취하게 되어능동형 동흡진기로서 작용하게 된다.However, when the range of vibration is widened, the weight body 102 may increase the size of vibration. In this case, the weight body 102 is a cylinder by the action of the permanent magnet 108 and the electromagnet 107. Appropriate behavior is taken in the vibration situation of (10) to act as an active dynamic reducer.
즉, 상기 가속도센서(109)로부터 전해진 실린더(10)의 진동크기가 일정값(중량체가 더 이상 진동감소기구로서의 역할을 수행하지 못하는 값) 이상일 때 제어유니트(110)는 중량체(102)를 실린더(10)의 진동방향과 반대방향으로 이동하도록 하는 자력관계를 형성하도록 상기 전자석(107)을 자화시키며, 그 진동의 정도에 따라 공급되는 전류의 세기를 조절하여 형성되는 자력의 크기도 조절한다.That is, when the vibration magnitude of the cylinder 10 transmitted from the acceleration sensor 109 is equal to or greater than a predetermined value (a value in which the weight no longer serves as a vibration reducing mechanism), the control unit 110 may move the weight 102. The electromagnet 107 is magnetized to form a magnetic force relationship to move in a direction opposite to the vibration direction of the cylinder 10, and also adjusts the magnitude of the magnetic force formed by adjusting the intensity of the supplied current according to the degree of vibration. .
상기 중량체(102)의 (상하)이동방향을 결정하는 자력관계의 형성은 제어유니트(110)가 상기 극성전환스위치(112)를 제어하여 전자석(107)으로 공급되는 전류의 극성을 바꾸어 줌으로써 영구자석(108)에 대한 전자석(107)의 극성을 바꾸어 줌으로써 가능하게 된다. 즉, 실린더(10)가 상승할때는 동반상승하는 중량체(102)를 하방으로 이동시키는 자력이 형성되고, 하강할때는 중량체(102)를 상승시키는 방향으로 자력이 형성되도록 전자석(107)의 극성을 조절하는 것이다.Formation of the magnetic force relationship to determine the (up and down) movement direction of the weight body 102 is permanent by the control unit 110 controls the polarity switching switch 112 to change the polarity of the current supplied to the electromagnet 107 This is possible by changing the polarity of the electromagnet 107 relative to the magnet 108. That is, when the cylinder 10 rises, a magnetic force is formed to move the weight body 102 rising upward, and when the cylinder 10 is lowered, the polarity of the electromagnet 107 is formed such that the magnetic force is formed in the direction of raising the weight body 102. To adjust.
또한, 실린더(10)의 진동크기에 따라서 상기 가변저항기(111)의 저항크기를 조절하여 전자석(107)에 공급되는 전류의 세기를 조절함으로써 전자석(107)의 자화정도를 조절하여 실린더(10)의 진동정도에 맞게 중량체(102)의 이동을 제어하게 된다.In addition, by controlling the magnitude of the current supplied to the electromagnet 107 by adjusting the resistance of the variable resistor 111 according to the vibration size of the cylinder 10 to adjust the magnetization degree of the electromagnet 107 by the cylinder 10 The movement of the weight body 102 is controlled according to the vibration degree of the.
따라서, 주행중 실린더(10)의 진동방향과 크기에 따라 상기 중량체(102)가 동일한 크기로 반대방향으로 이동하게 됨으로써 실린더(10)의 진동을 저감시킬 수 있게 된다.Therefore, according to the vibration direction and the size of the cylinder 10 while traveling, the weight body 102 is moved in the opposite direction by the same size, it is possible to reduce the vibration of the cylinder (10).
이상 설명한 바와 같이 본 발명에 따르면, 쇽업소버를 통해 차체로 전달되는 진동을 보다 세밀한 수준에서 효율적으로 저감시킬 수 있게 됨으로써 승차감이 향상되는 효과가 있다.As described above, according to the present invention, the vibration transmitted to the vehicle body through the shock absorber can be effectively reduced at a more detailed level, thereby improving the riding comfort.
Claims (3)
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| KR100665268B1 (en) * | 2004-10-29 | 2007-01-04 | 한국전력공사 | Electronic meter with intelligent agent |
| US7896142B2 (en) * | 2007-03-15 | 2011-03-01 | Tenneco Automotive Operating Company Inc. | Shock absorber dirt shield |
| KR101382750B1 (en) * | 2008-08-21 | 2014-04-09 | 현대자동차주식회사 | Shock absorber structure of vehicle |
| CN111442895A (en) * | 2020-04-26 | 2020-07-24 | 徐州普瑞赛思物联网科技有限公司 | Heavy object impact device for battery detection |
| CN115929832A (en) * | 2021-09-23 | 2023-04-07 | 浙江稳达减振器有限公司 | Electric control variable resistance type shock absorber installed in modularized mode |
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|---|---|---|---|---|
| JPS5547032A (en) * | 1978-09-29 | 1980-04-02 | Kazuto Sedo | Variable spring constant type dynamic damper with eddy- current damping |
| JPH07248043A (en) * | 1994-03-11 | 1995-09-26 | Matsushita Electric Ind Co Ltd | Anti-vibration device |
| KR19980049959A (en) * | 1996-12-20 | 1998-09-15 | 박병재 | Dynamic Damper for Engine Vibration Absorption |
| KR19980049097A (en) * | 1996-12-19 | 1998-09-15 | 박병재 | Automotive Magnetic Shock Absorbers |
| KR19990019600U (en) * | 1997-11-20 | 1999-06-15 | 홍종만 | Electronically controlled shock absorber |
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- 2001-12-14 KR KR10-2001-0079394A patent/KR100448777B1/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5547032A (en) * | 1978-09-29 | 1980-04-02 | Kazuto Sedo | Variable spring constant type dynamic damper with eddy- current damping |
| JPH07248043A (en) * | 1994-03-11 | 1995-09-26 | Matsushita Electric Ind Co Ltd | Anti-vibration device |
| KR19980049097A (en) * | 1996-12-19 | 1998-09-15 | 박병재 | Automotive Magnetic Shock Absorbers |
| KR19980049959A (en) * | 1996-12-20 | 1998-09-15 | 박병재 | Dynamic Damper for Engine Vibration Absorption |
| KR19990019600U (en) * | 1997-11-20 | 1999-06-15 | 홍종만 | Electronically controlled shock absorber |
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