KR100428172B1 - a bumper gap maintain device of lower arm for vehicles - Google Patents
a bumper gap maintain device of lower arm for vehicles Download PDFInfo
- Publication number
- KR100428172B1 KR100428172B1 KR10-2001-0078814A KR20010078814A KR100428172B1 KR 100428172 B1 KR100428172 B1 KR 100428172B1 KR 20010078814 A KR20010078814 A KR 20010078814A KR 100428172 B1 KR100428172 B1 KR 100428172B1
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- South Korea
- Prior art keywords
- bumper
- lower arm
- gap
- bumper gap
- control unit
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
- B60G17/0152—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit
- B60G17/0157—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit non-fluid unit, e.g. electric motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
- B60G17/018—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
- B60G17/019—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/43—Fittings, brackets or knuckles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2401/00—Indexing codes relating to the type of sensors based on the principle of their operation
- B60G2401/20—Switches, e.g. mercury or ball type switches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2600/00—Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
- B60G2600/22—Magnetic elements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
본 발명은 자동차 로어암의 범퍼갭 유지장치에 관한 것으로, 범퍼스토퍼(8)의 하부에 자석(10)과 중량센서(11)가 설치되고, 스토퍼 브라켓트(9)의 하면에 자석(12 ; 상기 10과 척력관계)이 부착되며, 상기 중량센서(11)는 제어유니트(13)에 연결되는 한편, 로어암(6)에 일단이 고정된 토션바(1)의 타단이 모터(15)로 회전되는 로테이터(14)에 세레이션 결합되고, 상기 모터(15)는 릴레이스위치(17)를 통해 배터리(16)의 전력을 공급받으며, 상기 릴레이스위치(17)는 상기 제어유니트(13)에 의해 작동되는 구조로 이루어진다.The present invention relates to a bumper gap holding device of a vehicle lower arm, wherein a magnet 10 and a weight sensor 11 are installed below the bumper stopper 8, and a magnet 12; 10 and a repulsive force) are attached, and the weight sensor 11 is connected to the control unit 13, while the other end of the torsion bar 1 fixed to the lower arm 6 is rotated by the motor 15. Serration is coupled to the rotator 14, the motor 15 is supplied with the power of the battery 16 through the relay switch 17, the relay switch 17 is operated by the control unit 13 It is made of a structure.
따라서, 상기 중량센서(11)를 통해 범퍼갭을 감지하고, 이 범퍼갭이 줄어들었을 경우 제어유니트(13)는 릴레이스위치(17)를 작동시켜 상기 모터(15)를 작동시키며, 모터(15)는 토션바(1)를 통해 로어암(6)을 원위치시킴으로써 범퍼갭이 다시 증가된다.Therefore, the bumper gap is sensed through the weight sensor 11, and when the bumper gap is reduced, the control unit 13 operates the relay switch 17 to operate the motor 15 and the motor 15. The bumper gap is increased again by returning the lower arm 6 through the torsion bar 1.
따라서, 범퍼갭이 일정하게 유지됨으로써 범퍼갭 감소로 인한 차고 저하, 승차감 저하 및 휠하우징과 타이어의 간섭을 방지할 수 있다.Therefore, by maintaining the bumper gap constant, it is possible to prevent the height decrease, the ride comfort decrease, and the interference of the wheel housing and the tire due to the bumper gap reduction.
Description
본 발명은 자동차 로어암의 범퍼갭 유지장치에 관한 것으로, 특히 범퍼갭의 거리가 일정한 값으로 자동 유지될 수 있도록 된 자동차 로어암의 범퍼갭 유지장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bumper gap holding device for an automobile lower arm, and more particularly to a bumper gap holding device for an automotive lower arm such that the distance of the bumper gap can be automatically maintained at a constant value.
일반적으로 자동차의 서스펜션암 중에서 하부의 로어암은 코일스프링에 의해 상·하방으로의 유동이 탄지되어, 하중을 지지하고, 충격을 흡수하며, 거동 후 원위치로 복귀하도록 되어 있다.Generally, the lower arm of the suspension arm of an automobile is supported by the coil spring up and down to support the load, absorb the shock, and return to the original position after the movement.
그러나, 차종에 따라서는 도 1에 도시된 바와 같이 토션바(torsion bar)를 사용하는 경우도 있는데, 상기 토션바(1)의 양단에 앵커암 A(2)와 앵커암 B(3)가 세레이션 결합되고, 상기 앵커암 A(2)는 프레임의 크로스멤버에 앵커볼트(4)와 앵커너트(5)로 장착되고, 상기 앵커암 B(3)는 로어암(6)의 회동축 선상 즉, 로어암(6)의 차체측 단부 측면에 장착되는 구조로 되어 있었다.However, depending on the vehicle type, a torsion bar may be used as shown in FIG. 1. Anchor arm A (2) and anchor arm B (3) are formed at both ends of the torsion bar (1). The anchor arm A (2) is mounted to the cross member of the frame with an anchor bolt (4) and an anchor nut (5), the anchor arm B (3) is on the rotation axis of the lower arm (6) The structure was attached to the vehicle body side end side surface of the lower arm 6. As shown in FIG.
따라서, 상기 로어암(6)이 차륜의 상하거동에 의해 회동될 때 상기 토션바(1)가 비틀려지면서 복원력이 발생하여 스프링 작용을 함으로써 진동 및 충격을 흡수하는 역할을 하게 된다.Therefore, when the lower arm 6 is rotated by the vertical movement of the wheel, the torsion bar 1 is twisted and a restoring force is generated to act as a spring to absorb vibration and shock.
한편, 상기 로어암(6)과 이 로어암(6)이 장착되는 프레임(7)에는 로어암(6)의 최대 상승위치를 제한하기 위하여 범퍼 스토퍼(8)와 스토퍼 브라켓트(9)가 설치된다.On the other hand, the lower arm 6 and the frame 7 on which the lower arm 6 is mounted are provided with a bumper stopper 8 and a stopper bracket 9 to limit the maximum lift position of the lower arm 6. .
따라서, 로어암(6)이 상방으로 회동할 때 상기 스토퍼 브라켓트(9)에 범퍼 스토퍼(8)가 닿게 되어 최대 상승위치가 제한되며, 상기 범퍼 스토퍼(8)는 고무재질로 되어 있어 스토퍼 브라켓트(9)에 닿을때의 충격을 흡수한다.Therefore, when the lower arm 6 rotates upward, the bumper stopper 8 comes into contact with the stopper bracket 9 so that the maximum lift position is limited, and the bumper stopper 8 is made of a rubber material to stopper bracket ( 9) Absorb the shock when it hits.
그런데, 상기 토션바(1)는 코일스프링에 비하여 영구변형률이 높기 때문에 비틀린 상태에서 변형이 고정되면 상기 범퍼 스토퍼(8)와 스토퍼 브라켓트(9) 사이의 간격인 범퍼갭(G)이 줄어들게 된다.However, since the torsion bar 1 has a higher permanent strain than the coil spring, when the deformation is fixed in the twisted state, the bumper gap G, which is an interval between the bumper stopper 8 and the stopper bracket 9, is reduced.
또한, 상기 로어암(6)의 차체측 단부를 장착할 때 사용되는 부시가 변형 및 마모되는 것에 의해서도 범퍼갭(G)이 줄어들게 된다.In addition, the bumper gap G is also reduced by the deformation and wear of the bush used when mounting the vehicle body side end of the lower arm 6.
이와 같이 범퍼갭(G)이 줄어들면 차고가 낮아지고, 범퍼 스토퍼(8)와 스토퍼 브라켓트(9)가 지나치게 자주 접촉하게 됨으로써 승차감이 저하됨은 물론, 풀 범프(full bump)시 휠하우징과 타이어가 닿게 되는 문제점이 있었다.As such, when the bumper gap G is reduced, the garage is lowered, and the bumper stopper 8 and the stopper bracket 9 are in contact with each other too often. There was a problem reached.
이에 본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로, 토션바에 영구변형이 일어나거나 부시가 마모되어 범퍼갭이 줄어들면, 자동적으로 줄어든 간격이 보정되어 항상 범퍼갭이 일정하게 유지됨으로써 차고저하, 승차감 저하 및 풀 범프시 휠하우징과 타이어의 간섭현상을 방지할 수 있도록 된 자동차 로어암의 범퍼갭 유지장치를 제공함에 그 목적이 있다.Accordingly, the present invention has been made in order to solve the above problems, when the permanent deformation occurs in the torsion bar or the wear of the bush to reduce the bumper gap, the reduced gap is automatically compensated for the bumper gap is always kept constant to reduce the height It is an object of the present invention to provide a bumper gap maintenance device for a vehicle lower arm, which can prevent a reduction in ride comfort and interference between a wheel housing and a tire during a full bump.
도 1은 토션바를 이용하는 타입의 현가장치 분해 사시도,1 is an exploded perspective view of a suspension device of the type using a torsion bar;
도 2는 로어암 범퍼 스토퍼 및 이에 대응되는 스토퍼 브라켓트의 설치상태도,2 is an installation state of the lower arm bumper stopper and the corresponding stopper bracket,
도 3은 본 발명에 따른 자동차 로어암의 범퍼갭 유지장치의 구성도이다.3 is a block diagram of a bumper gap holding device of a vehicle lower arm according to the present invention.
*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
1 : 토션바, 2,3 : 앵커암,1: torsion bar, 2,3: anchor arm,
4 : 앵커볼트, 5 : 앵커너트,4: anchor bolt, 5: anchor nut,
6 : 로어암, 7 : 프레임,6: lower arm, 7: frame,
8 : 범퍼 스토퍼, 9 : 스토퍼 브라켓트,8: bumper stopper, 9: stopper bracket,
10,12 : 자석, 11 : 중량센서,10,12 magnet, 11 weight sensor,
13 : 제어유니트, 14 : 로테이터,13: control unit, 14: rotator,
15 : 모터, 16 : 배터리,15: motor, 16: battery,
17 : 릴레이스위치.17: relay switch.
상기와 같은 목적을 달성하기 위한 본 발명은, 로어암의 범퍼 스토퍼 하부와 프레임의 스토퍼 브라켓트 밑면에 설치되는 상호 척력관계의 두 자석과, 이 중 상기 범퍼 스토퍼측 자석의 하부에 설치되는 중량센서와, 이 중량센서에서 발생한 전압의 크기에 의해 범퍼갭을 산출하고 릴레이스위치 작동전압을 발생시키는 제어유니트와, 일단이 로어암에 고정된 토션바의 타단에 세레이션 결합되는 로테이터와, 이 로테이터의 타측에 회전축이 세레이션 결합되는 모터와, 상기 제어유니트로부터 작동전압을 인가받아 접점 연결됨으로써 배터리의 전력을 모터에 전달하는 상기 릴레이스위치를 포함하여 이루어진다.The present invention for achieving the above object, the two magnets of the mutual repulsive relationship is installed on the bottom of the lower bumper stopper and the bottom of the stopper bracket of the frame, and the weight sensor of the lower end of the bumper stopper-side magnet and A control unit for calculating a bumper gap and generating a relay switch operating voltage based on the magnitude of the voltage generated by the weight sensor, a rotator having one end serrated to the other end of the torsion bar fixed to the lower arm, and the other side of the rotator And a relay switch connected to the rotation shaft to the serration, and the relay switch receiving the operating voltage from the control unit and connected to a contact to transfer the power of the battery to the motor.
즉, 범퍼갭이 일정 한도 이상으로 줄어들면 제어유니트에 의해 모터가 작동되고, 이 모터가 상기 토션바를 회전시켜 상승된 로어암을 원위치시킴으로써 범퍼갭의 크기가 다시 증가되도록 된 것이다.That is, when the bumper gap is reduced by more than a certain limit, the motor is operated by the control unit, and the motor rotates the torsion bar to return the raised lower arm to increase the size of the bumper gap again.
이하, 본 발명을 첨부된 예시도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.
도 3은 본 발명에 따른 자동차 로어암의 범퍼갭 유지장치의 구성도로서, 본 발명은 로어암(6)에 앵커암 B(3)를 매개로 토션바(1)의 일단이 장착되고, 상기 로어암(6)에 범퍼 스토퍼(8)가 장착되며, 이 범퍼 스토퍼(8)의 상부에 프레임(7)에 장착되는 스토퍼 브라켓트(9)가 위치되는 구조에 있어서, 상기 범퍼 스토퍼(8)의 하부에 자석(10)과 중량센서(11)가 설치되고--로어암의 상부표면으로부터 중량센서, 자석, 범퍼 스토퍼의 순이다.--, 상기 스토퍼 브라켓트(9)에 상기 자석(10)과 같은 극의 자석(12)이 설치되며(상호 척력 관계가 되도록), 상기 중량센서(11)는 제어유니트(13)에 연결된다.3 is a configuration of the bumper gap holding device of the vehicle lower arm according to the present invention, the present invention is mounted on the lower arm 6, one end of the torsion bar 1 via the anchor arm B (3), In the structure in which the bumper stopper 8 is mounted on the lower arm 6 and the stopper bracket 9 mounted on the frame 7 is located on the upper part of the bumper stopper 8, the bumper stopper 8 The magnet 10 and the weight sensor 11 are installed at the lower side, and then the weight sensor, the magnet, and the bumper stopper from the upper surface of the lower arm. The magnet 10 and the stopper bracket 9 are attached to the stopper bracket 9. A magnet 12 of the same pole is installed (to be mutually repulsive), and the weight sensor 11 is connected to the control unit 13.
여기서, 상기 중량센서(11)는 상부로부터 하중이 가해질 때 이 하중에 비례하여 전압을 발생시키며, 상기 제어유니트(13)는 중량센서(11)로부터 전달되는 전압의 크기로부터 범퍼갭(G)을 산출하고, 산출된 범퍼갭(G)이 기입력된 정상값보다 작은 경우 토션바의 영구변형이나 부시의 마모등에 의해 범퍼갭이 줄어든 것으로판단하고 릴레이스위치 작동전압을 발생시킨다.Here, the weight sensor 11 generates a voltage in proportion to the load when a load is applied from the top, and the control unit 13 generates a bumper gap G from the magnitude of the voltage transmitted from the weight sensor 11. If the calculated bumper gap G is smaller than the normal value inputted, it is determined that the bumper gap is reduced due to the permanent deformation of the torsion bar or the wear of the bush, and the relay switch operating voltage is generated.
또한, 상기 토션바(1)의 타단에는 로테이터(14)가 세레이션 결합되며, 이 로테이터(14)의 반대쪽면에는 크로스멤버에 장착된 모터(15) 회전축이 세레이션 결합된다.In addition, the other end of the torsion bar 1, the rotator 14 is coupled serration, the opposite side of the rotator 14 is coupled to the rotation shaft of the motor (15) mounted on the cross member.
그리고, 상기 모터(15)는 배터리(16)에 연결되며, 이들의 사이에는 상기 제어유니트(13)로부터 작동전압을 인가받아 작동되는(off상태에서 on상태로의 전환) 릴레이스위치(17)가 설치된다.Then, the motor 15 is connected to the battery 16, between them a relay switch 17 which is operated (switching from off state to on state) by receiving an operating voltage from the control unit 13 Is installed.
이하, 본 발명의 작동을 설명한다.The operation of the present invention will be described below.
상기 두 자석(10,12)의 사이에는 척력이 작용하고 있으므로 상기 중량센서(11)는 항상 상부의 자석(10)이 내리누르는 하중을 받게 된다.Since the repulsive force acts between the two magnets 10 and 12, the weight sensor 11 is always subjected to a load that the upper magnet 10 presses down.
그런데, 토션바(1)가 영구변형되거나 부시가 마모되어 범퍼갭(G)이 감소하였을 경우에는 상기 자석(10,12)의 거리가 가까워지므로 양자 간에 작용하는 척력이 더욱 강해짐으로써 중량센서(11)는 더욱 큰 하중을 받게 된다.However, when the torsion bar 1 is permanently deformed or the bush is worn out, and the bumper gap G is reduced, the distance between the magnets 10 and 12 is closer, so that the repulsive force acting between the two becomes stronger. ) Is subjected to a greater load.
이와 같이 거리의 변화는 자력을 변화를 야기하고, 자력의 변화는 중량센서(11)에 가해지는 하중을 변화시킴으로써 상기 중량센서(11)는 범퍼갭의 변화에 따라 변화하는 전압을 출력하게 된다.As such, the change in distance causes a change in the magnetic force, and the change in the magnetic force changes the load applied to the weight sensor 11 so that the weight sensor 11 outputs a voltage which changes according to the change of the bumper gap.
따라서, 상기 제어유니트(13)는 입력 전압값으로부터 범퍼갭을 산출하고, 산출된 범퍼갭을 기입력된 기준 범퍼갭과 비교함으로써 범퍼갭의 변화를 감지할 수 있게 된다.Accordingly, the control unit 13 can detect a change in the bumper gap by calculating a bumper gap from an input voltage value and comparing the calculated bumper gap with a previously input reference bumper gap.
상기와 같은 과정을 거쳐 범퍼갭이 줄어든 것으로 판단한 경우,제어유니트(13)는 릴레이 스위치 작동전압을 릴레이스위치(17)에 인가하여 릴레이스위치(17)의 접점을 연결시킴으로써 배터리(16)의 전력을 모터(15)로 공급하여, 모터(15)를 작동시킨다.When it is determined that the bumper gap is reduced through the above process, the control unit 13 applies the relay switch operating voltage to the relay switch 17 to connect the contacts of the relay switch 17 to power the battery 16. The motor 15 is operated by supplying it to the motor 15.
상기 모터(15)가 작동되면 로테이터(14)가 회전되며, 이에 세레이션 결합된 토션바(1)를 통해 회전력이 전달됨으로써 상기 로어암(6)을 원위치로 복귀시킬 수 있게 된다.When the motor 15 is operated, the rotator 14 is rotated, and the rotational force is transmitted through the torsion bar 1 coupled to the serration, thereby allowing the lower arm 6 to be returned to its original position.
따라서, 줄어들었던 범퍼갭(G)이 원상태로 증가된다.Thus, the bumper gap G, which has been reduced, is increased to its original state.
한편, 범퍼갭(G)이 원상태로 회복된 경우, 상기 제어유니트(10)는 릴레이 스위치 작동전압 발생을 중지하여 릴레이 스위치(17)의 접속상태를 off상태로 전환시킴으로써 모터(15)의 불필요한 작동이 지속되어 과부하로 인해 파손되는 것을 방지한다.On the other hand, when the bumper gap G is restored to its original state, the control unit 10 stops the relay switch operation voltage generation, thereby switching the connection state of the relay switch 17 to the off state, thereby unnecessary operation of the motor 15. This continues to prevent damage due to overload.
이상 설명한 바와 같이 본 발명에 따르면, 범퍼갭의 줄어든 간격이 자동으로 보정되어 항상 범퍼갭이 일정하게 유지됨으로써 범퍼갭 감소로 인한 차고저하, 승차감 저하 및 풀 범프시 휠하우징과 타이어의 간섭현상을 방지할 수 있는 효과가 있다.As described above, according to the present invention, the reduced gap of the bumper gap is automatically compensated, and the bumper gap is constantly maintained at all times, thereby preventing the lowering of the garage due to the decrease of the bumper gap, the deterioration of ride comfort, and the interference of the wheel housing and the tire during the full bump. It can work.
Claims (2)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0078814A KR100428172B1 (en) | 2001-12-13 | 2001-12-13 | a bumper gap maintain device of lower arm for vehicles |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0078814A KR100428172B1 (en) | 2001-12-13 | 2001-12-13 | a bumper gap maintain device of lower arm for vehicles |
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| Publication Number | Publication Date |
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| KR20030048784A KR20030048784A (en) | 2003-06-25 |
| KR100428172B1 true KR100428172B1 (en) | 2004-04-28 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5758506A (en) * | 1980-09-27 | 1982-04-08 | Nissan Motor Co Ltd | Car height detecting device |
| JPS58128909A (en) * | 1982-01-29 | 1983-08-01 | Nissan Motor Co Ltd | Vehicle level adjusting device |
| JPH02117409A (en) * | 1988-10-27 | 1990-05-01 | Mitsubishi Motors Corp | Torsion bar type suspension device |
| JPH11304407A (en) * | 1998-04-27 | 1999-11-05 | Denso Corp | Vehicle height sensor and device for adjusting optical axis of headlight for vehicle |
-
2001
- 2001-12-13 KR KR10-2001-0078814A patent/KR100428172B1/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5758506A (en) * | 1980-09-27 | 1982-04-08 | Nissan Motor Co Ltd | Car height detecting device |
| JPS58128909A (en) * | 1982-01-29 | 1983-08-01 | Nissan Motor Co Ltd | Vehicle level adjusting device |
| JPH02117409A (en) * | 1988-10-27 | 1990-05-01 | Mitsubishi Motors Corp | Torsion bar type suspension device |
| JPH11304407A (en) * | 1998-04-27 | 1999-11-05 | Denso Corp | Vehicle height sensor and device for adjusting optical axis of headlight for vehicle |
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| KR20030048784A (en) | 2003-06-25 |
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