KR20080029554A - Height measuring device for automobile - Google Patents

Height measuring device for automobile Download PDF

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Publication number
KR20080029554A
KR20080029554A KR1020060096326A KR20060096326A KR20080029554A KR 20080029554 A KR20080029554 A KR 20080029554A KR 1020060096326 A KR1020060096326 A KR 1020060096326A KR 20060096326 A KR20060096326 A KR 20060096326A KR 20080029554 A KR20080029554 A KR 20080029554A
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KR
South Korea
Prior art keywords
assist arm
wire
garage
vehicle
height measuring
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Application number
KR1020060096326A
Other languages
Korean (ko)
Inventor
이후광
Original Assignee
현대자동차주식회사
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Application filed by 현대자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR1020060096326A priority Critical patent/KR20080029554A/en
Publication of KR20080029554A publication Critical patent/KR20080029554A/en

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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
    • B60G17/019—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/10—Type of spring
    • B60G2202/12—Wound spring
    • 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
    • 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
    • B60G2204/80—Interactive suspensions; arrangement affecting more than one suspension unit
    • B60G2204/83—Type of interconnection
    • B60G2204/8302—Mechanical
    • B60G2204/83022—Mechanical using cables, wires, belts or chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/25—Stroke; Height; Displacement
    • B60G2400/252—Stroke; Height; Displacement vertical
    • 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
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

A vehicle height measuring device is provided to measure vehicle height by using a wire whose length is changed according to vertical movement of an assist arm. A vehicle height measuring device comprises a wire(30) and a spiral spring(40). The wire supports an assist arm(20) and connects a vehicle height measuring sensor(10) with an assist arm support bracket(22). The spiral spring gives reciprocating force to a rotation unit(12) of the vehicle height measuring sensor to give reciprocating force to the wire to return the assist arm in place. When the assist arm is in operation the wire is wound around the rotation unit connected to the vehicle height measuring sensor as the rotation unit rotates as much as the wire is released.

Description

자동차용 차고계측 장치{Height measuring device for automobile}Height measuring device for automobile

도 1은 본 발명에 따른 자동차용 차고계측 장치를 나타내는 구성도,1 is a block diagram showing a vehicle garage measurement apparatus according to the present invention,

도 2a 및 도 2b는 본 발명에 따른 자동차용 차고계측 장치의 작동상태를 나타내는 작동도,2a and 2b is an operation diagram showing an operating state of the vehicle garage measurement apparatus according to the present invention,

도 3은 종래의 자동차용 차고계측 장치의 어시스트암과 링크구조에 의한 작동원리를 나타내는 도면,3 is a view showing the operation principle by the assist arm and the link structure of a conventional vehicle height measurement device for a vehicle,

도 4는 종래의 자동차용 차고계측 장치를 나타내는 구성도이다. 4 is a configuration diagram showing a conventional vehicle height measuring apparatus.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

10 : 차고계측센서 11 : 고정부10: height measurement sensor 11: fixed part

12 : 회전부 20 : 어시스트암12: rotating part 20: assist arm

21 : 회전축 22 : 어시스트암 지지브라켓21: shaft 22: assist arm support bracket

30 : 와이어 40 : 스파이럴 스프링30: wire 40: spiral spring

본 발명은 자동차용 차고계측 장치에 관한 것으로서, 더욱 상세하게는 어시스트암의 회동구조와 연계되어 그 회동각도에 따라 와이어의 길이를 변화시켜 차고를 계측할 수 있는 자동차용 차고계측 장치에 관한 것이다. The present invention relates to a vehicle garage measuring apparatus, and more particularly, to a vehicle garage measuring apparatus that can measure the height of the garage by varying the length of the wire in accordance with the rotation angle of the assist arm.

일반적으로, 차고제어는 자동차의 차고를 차고계측센서 등으로 감지하여 일정높이로 유지하는 것으로, 유압이나 공기압을 이용하여 차고의 높낮이를 조정할 수 있도록 되어 있다. In general, the garage control is to maintain a certain height by detecting the height of the vehicle with a height measurement sensor, etc., it is possible to adjust the height of the garage by using hydraulic pressure or air pressure.

일반 포장도로에서는 공기 저항이 작고, 조종 안정성을 좋게 하기 위하여 차고를 낮추는 한편, 반대로 험한 오프로드(off-road)에서는 주파성을 좋게 하기 위하여 차고를 높일 수 있도록 한 장치가 일반적이지만, 승차감을 변화시키지 않고 하중이나 노면 조건에 관계없이 차고를 일정하게 유지하여, 헤드램프의 조사위치를 안정시킬 목적으로도 사용된다. In general pavement, the air resistance is small, and the garage is lowered to improve steering stability, while on the contrary, in a rough off-road, it is common to increase the garage to improve the frequency, but it does not change the ride comfort. It is also used for the purpose of stabilizing the irradiation position of the headlamp by keeping the garage constant regardless of load or road conditions.

여기서, 기존의 차고계측센서에 의한 차고 계측은 도 3에 도시된 바와 같이, 리어 서스펜션의 횡방향으로 배치된 어시스트암(assist arm)(200)에 링크부(300)를 연결하고, 상기 어시스트암(200)의 회전 구동에 대해 이와 연동하는 링크부(300)의 회전량을 계측하여 차고를 실시간으로 검출할 수 있도록 되어 있다.Here, the height measurement by the existing height measurement sensor, as shown in Figure 3, the link arm 300 is connected to the assist arm (assist arm) disposed in the lateral direction of the rear suspension, the assist arm It is possible to detect the garage in real time by measuring the amount of rotation of the link unit 300 in association with the rotation drive of the 200.

즉, 자동차의 중량이 증가하게 될 경우, 상기 어시스트암(200)이 지면에 대해 점점 더 평행하게 움직이게 되는바, 상기 링크부(300)의 회전 각도에 대한 증가값을 검출하게 되는 것이다. That is, when the weight of the vehicle increases, the assist arm 200 moves more and more parallel to the ground, thereby detecting an increase value for the rotation angle of the link unit 300.

그런데, 이러한 종래의 차고계측센서에 의한 차고 계측 구조는 도 4에 도시된 바와 같이, 별도의 링크부(300)와, 이 링크부(300)를 지지하는 링크부 지지브라 켓(400) 및 차고계측센서(100)를 지지하는 센서지지브라켓(500) 등을 필요로 하기 때문에 중량이 증가하는 문제점이 있고, 자동차의 하방으로 지나치게 돌출된 상기 브라켓(400,500)들이 노면의 이물질과 충돌하여 파손될 가능성이 발생하는 문제점이 있다. By the way, the conventional garage height measurement structure by the height measurement sensor, as shown in Figure 4, a separate link portion 300, the link portion support bracket 400 and the garage supporting the link portion 300 and the garage Since it requires a sensor support bracket (500) for supporting the measurement sensor 100, there is a problem that the weight increases, and the brackets (400,500) protruding excessively downward of the vehicle is likely to be damaged by collision with foreign matter on the road surface There is a problem that occurs.

따라서, 본 발명은 상기와 같은 문제점을 해결하기 위하여 발명한 것으로서, 어시스트암을 지지하면서 상기 차고계측센서와 어시스트암 지지브라켓 사이에 연결되는 와이어와, 상기 어시스트암의 회동각도에 따라 차고계측센서에 일정한 탄성 복원력을 제공하는 스파이럴 스프링으로 구성되어 어시스트암의 상하방향의 작동에 따라 상기 와이어의 길이를 변화시켜 실시간으로 차고를 계측할 수 있는 자동차용 차고계측 장치를 제공하는데 그 목적이 있다.Therefore, the present invention has been invented to solve the above problems, the wire is connected between the height measuring sensor and the assist arm support bracket while supporting the assist arm, and according to the rotation angle of the assist arm to the height measuring sensor It is an object of the present invention to provide a vehicle height measuring device which is configured of a spiral spring that provides a constant elastic restoring force and can measure the garage in real time by changing the length of the wire according to the operation of the assist arm in the up and down direction.

상기와 같은 목적을 달성하기 위하여 본 발명은 자동차의 차체와 휠에 연결되며, 리어 서스펜션의 횡방향으로 배치된 어시스트암과, 상기 어시스트암의 회동에 따라 연동하는 회전부의 회동각도를 통해 차고를 계측할 수 있는 차고계측센서를 포함하여 구성된 자동차용 차고계측 장치에 있어서,In order to achieve the above object, the present invention is connected to the vehicle body and the wheel of the vehicle, the garage is measured through the rotation angle of the assist arm arranged in the lateral direction of the rear suspension, and the rotational unit interlocked in accordance with the rotation of the assist arm. In the vehicle height measurement device comprising a height measurement sensor that can be,

상기 어시스트암(20)을 지지하면서 상기 차고계측센서(10)와 어시스트암 지지브라켓(22) 사이에 연결되는 와이어(30)와; A wire 30 connected between the garage measurement sensor 10 and the assist arm support bracket 22 while supporting the assist arm 20;

상기 와이어(30)에 탄성력을 제공하여 작동 상태에 있는 어시스트암(20)이 원상태로 복귀할 수 있도록 차고계측센서(10)의 회전부(12)에 일정한 탄성 복원력을 부여하는 스파이럴 스프링(40)으로 구성된 것을 특징으로 한다.By providing the elastic force to the wire 30 to the spiral spring 40 to impart a constant elastic restoring force to the rotating portion 12 of the height measurement sensor 10 so that the assist arm 20 in the operating state can be returned to its original state. Characterized in that configured.

바람직한 구현예로서, 상기 와이어(30)는 어시스트암(20)과 더불어 상하방향으로 작동시에 상기 차고계측센서(10)의 회전부(12)가 그 늘어난 길이만큼 회동하도록 차고계측센서(10)에 연결된 회전부(12)에 권취된 것을 특징으로 한다.In a preferred embodiment, the wire 30 is connected to the height measuring sensor 10 such that the rotation part 12 of the height measuring sensor 10 rotates by an extended length thereof when the wire 30 is operated in the vertical direction together with the assist arm 20. It is characterized in that the wound around the rotating part 12.

또한, 상기 스파이럴 스프링(40)은 상기 차고계측센서(10)의 회전부(12)에 권취된 형태로서, 자동차의 풀 범프(full-bump) 상태에서 탄성 복원력이 존재하지 않는 상태(탄성 복원력은 0)가 되도록 설정된 것을 특징으로 한다. In addition, the spiral spring 40 is wound on the rotating part 12 of the height measuring sensor 10, the elastic restoring force does not exist in the full-bump state of the vehicle (elastic restoring force is 0 It characterized in that it is set to be).

이하, 첨부도면을 참조하여 본 발명의 구성에 대해 상세하게 설명하면 다음과 같다. Hereinafter, the configuration of the present invention with reference to the accompanying drawings in detail.

첨부한 도 1은 본 발명에 따른 자동차용 차고계측 장치를 나타내는 구성도이며, 도 2a 및 도 2b는 본 발명에 따른 자동차용 차고계측 장치의 작동상태를 나타내는 작동도이다. 1 is a configuration diagram showing a vehicle height measuring apparatus for a vehicle according to the present invention, Figures 2a and 2b is an operation diagram showing an operating state of the vehicle height measuring apparatus for a vehicle according to the present invention.

본 발명은 종래의 차고계측센서(10)와 연계되어 어시스트암(20)의 회동에 따라 연동하는 링크구조를 배제하고, 상기 어시스트암(20)을 지지하면서 그 회동작동에 따라 길이를 변화시키는 와이어(30)를 통해 차고를 계측할 수 있도록 하는데 그 주안점이 있다. The present invention excludes the link structure linked to the height of the assist arm 20 in association with the conventional height measuring sensor 10, and supports the assist arm 20 while changing the length according to the rotation operation (30) makes it possible to measure the garage, the main point is.

도 1에 도시된 바와 같이, 자동차의 차체와 휠에 연결되며, 리어 서스펜션의 횡방향으로 배치된 어시스트암(20)은 차체의 중량에 따라 상하 방향으로 회동 가능 하도록 되어 있다.As shown in FIG. 1, the assist arm 20 connected to the vehicle body and the wheel of the vehicle and arranged in the lateral direction of the rear suspension is rotatable in the vertical direction according to the weight of the vehicle body.

상기 어시스트암(20)의 일측에는 그 어시스트암(20)이 회동할 수 있도록 회전축(21)이 구비되며, 이 회전축(21)을 지지하는 어시스트암 지지브라켓(22)이 리어 서스펜션 마운팅부에 장착되어 있다. One side of the assist arm 20 is provided with a rotating shaft 21 to allow the assist arm 20 to rotate, and an assist arm support bracket 22 supporting the rotating shaft 21 is mounted to the rear suspension mounting portion. It is.

또한, 상기 어시스트암(20)의 회전량을 계측하여 차고를 실시간으로 검출하는 차고계측센서(10)는 어시스트암(20)을 사이에 두고 상기 어시스트암 지지브라켓(22)이 구비된 리어 서스펜션 마운팅부의 소정위치에 장착되어 있다.In addition, the height measurement sensor 10 for detecting the garage in real time by measuring the amount of rotation of the assist arm 20, the rear suspension mounting having the assist arm support bracket 22 with the assist arm 20 therebetween. It is attached to a negative predetermined position.

상기 차고계측센서(10)는 도 2a 및 도 2b에 도시된 바와 같이, 축고정된 형태의 고정부(11)와, 상기 고정부(11)를 중심으로 회전하는 회전부(12)를 포함하여 구성되어 있다.2A and 2B, the height measuring sensor 10 includes a fixed part 11 of a shaft fixed shape and a rotating part 12 rotating about the fixed part 11. It is.

본 발명의 바람직한 구현예로서, 종래의 링크 구조의 기능을 갖는 본 발명의 구성은 상기 어시스트암(20)을 지지하면서 상기 차고계측센서(10)와 어시스트암 지지브라켓(22) 사이에 연결되는 와이어(30)와, 상기 와이어(30)에 탄성력을 제공하여 작동 상태에 있는 어시스트암(20)이 원상태로 복귀할 수 있도록 차고계측센서(10)의 회전부(12)에 일정한 탄성 복원력을 부여하는 스파이럴 스프링(40)으로 구성되어 있다.As a preferred embodiment of the present invention, the configuration of the present invention having a function of the conventional link structure is a wire connected between the height measurement sensor 10 and the assist arm support bracket 22 while supporting the assist arm 20. 30 and a spiral that provides a predetermined elastic restoring force to the rotating part 12 of the height measurement sensor 10 to provide an elastic force to the wire 30 so that the assist arm 20 in the operating state can be returned to its original state. The spring 40 is comprised.

이때, 상기 와이어(30)는 차고계측센서(10)에 연결된 회전부(12)에 권취되어 있으면서 어시스트암(20)과 더불어 상하방향으로 작동시에 상기 차고계측센서(10)의 회전부(12)가 그 늘어난 길이만큼 회동하도록 되어 있다.At this time, the wire 30 is wound around the rotating part 12 connected to the height measuring sensor 10 and the assisting part 20 and the rotating part 12 of the height measuring sensor 10 when operated in the vertical direction. It is to be rotated by that length.

상기 스파이럴 스프링(40)은 상기 차고계측센서(10)의 회전부(12)에 태엽 형 상으로 권취된 형태로서, 초기 상태인 자동차의 풀 범프(full-bump) 상태에서 탄성 복원력이 존재하지 않는 상태(탄성 복원력은 0)가 되도록 설정되어 있다. The spiral spring 40 is wound on the rotating part 12 of the height measuring sensor 10 in a winding shape, and a state in which an elastic restoring force does not exist in a full bump state of an initial vehicle. (The elastic restoring force is set to 0).

이는 자동차의 차체를 강제로 하방으로 밀어 내린 상태로 상기 어시스트암(20)이 최대 높이로 상승된 상태를 나타낸다. This indicates a state in which the assist arm 20 is raised to the maximum height in a state of forcibly pushing down the vehicle body of the automobile.

이하, 본 발명의 작동원리에 대해 첨부도면 도 2a 및 도 2b를 참조하여 설명하면 다음과 같다.Hereinafter, the operation principle of the present invention will be described with reference to the accompanying drawings, Figures 2a and 2b.

자동차가 정상적인 조건으로 지면 상에 위치하게 되면 어시스트암(20)은 자동차의 중량과 서스펜션 구조의 평형이 이루어지는 위치까지 하강하게 되는바, 이때 상기 어시스트암(20)은 그것을 지지하는 와이어(30)를 하방으로 밀게 된다.When the vehicle is placed on the ground under normal conditions, the assist arm 20 is lowered to a position where the weight of the vehicle is balanced with the suspension structure. In this case, the assist arm 20 supports a wire 30 supporting it. Pushed downwards.

이때, 차고계측센서(10)의 회전부(12)에 권취되어 있는 상태의 와이어(30)는 상기 회전부(12)의 회동을 통해 풀어지면서 하방으로 내려가게 되고, 상기 차고계측센서(10)의 회전각을 검출하여 차고를 계측하게 된다.At this time, the wire 30 in the state wound around the rotating part 12 of the height measuring sensor 10 is released downward through the rotation of the rotating part 12, the rotation of the height measuring sensor 10 The angle is detected and the garage is measured.

이때, 상기 회전부(12)에 탄력적으로 권취되어 있는 스파이럴 스프링(40)은 상기 와이어(30)가 하강할수록 회전부(12)의 회동을 통해 압축력이 점차 상승하게 된다. At this time, the spiral spring 40 elastically wound on the rotating part 12, the compressive force is gradually increased through the rotation of the rotating part 12 as the wire 30 is lowered.

도 2b에 도시된 바와 같이, 상기 와이어(30)가 하강할 경우, 스파이럴 스프링(40)은 압축되므로 원상태로 복원되려는 탄성 복원력이 작용하게 되어 초기 상태로 복귀하게 된다.As shown in Figure 2b, when the wire 30 is lowered, the spiral spring 40 is compressed so that the elastic restoring force to be restored to the original state is applied to return to the initial state.

이상에서 본 바와 같이, 본 발명에 따른 자동차용 차고계측 장치에 의하면, 종래의 복잡한 링크구조 및 상기 링크구조와 차고계측센서를 지지하는 지지브라켓을 배제함으로써, 전체 구조의 경량화가 가능하고, 상기 차고계측센서를 어시스트암에 비해 높게 배치 가능하므로 노면에서 튀는 이물질에 의한 파손을 방지할 수 있는 효과가 있다.As described above, according to the vehicle garage measuring apparatus according to the present invention, by eliminating the conventional complex link structure and the support bracket for supporting the link structure and the height measuring sensor, it is possible to reduce the overall weight of the structure, the Since the measuring sensor can be placed higher than the assist arm, it is possible to prevent damage caused by foreign substances splashing from the road surface.

Claims (3)

자동차의 차체와 휠에 연결되며, 리어 서스펜션의 횡방향으로 배치된 어시스트암과, 상기 어시스트암의 회동에 따라 연동하는 회전부의 회동각도를 통해 차고를 계측할 수 있는 차고계측센서를 포함하여 구성된 자동차용 차고계측 장치에 있어서,A vehicle, which is connected to the vehicle body and the wheel, includes an assist arm arranged in the lateral direction of the rear suspension, and a height measuring sensor that can measure the garage through the rotation angle of the rotating unit that interlocks according to the rotation of the assist arm. In the garage measuring apparatus for 상기 어시스트암(20)을 지지하면서 상기 차고계측센서(10)와 어시스트암 지지브라켓(22) 사이에 연결되는 와이어(30)와; A wire 30 connected between the garage measurement sensor 10 and the assist arm support bracket 22 while supporting the assist arm 20; 상기 와이어(30)에 탄성력을 제공하여 작동 상태에 있는 어시스트암(20)이 원상태로 복귀할 수 있도록 차고계측센서(10)의 회전부(12)에 일정한 탄성 복원력을 부여하는 스파이럴 스프링(40)으로 구성된 것을 특징으로 하는 자동차용 차고계측 장치.By providing the elastic force to the wire 30 to the spiral spring 40 to impart a constant elastic restoring force to the rotating portion 12 of the height measurement sensor 10 so that the assist arm 20 in the operating state can be returned to its original state. Garage measuring device for a vehicle, characterized in that configured. 청구항 1에 있어서,The method according to claim 1, 상기 와이어(30)는 어시스트암(20)과 더불어 상하방향으로 작동시에 상기 차고계측센서(10)의 회전부(12)가 그 늘어난 길이만큼 회동하도록 차고계측센서(10)에 연결된 회전부(12)에 권취된 것을 특징으로 하는 자동차용 차고계측 장치.The wire 30 is connected to the height measurement sensor 10 so that the rotation part 12 of the height measurement sensor 10 rotates by an extended length when operated in the vertical direction together with the assist arm 20. Car garage measurement apparatus, characterized in that wound on. 청구항 1에 있어서,The method according to claim 1, 상기 스파이럴 스프링(40)은 상기 차고계측센서(10)의 회전부(12)에 권취된 형태로서, 자동차의 풀 범프(full-bump) 상태에서 탄성 복원력이 존재하지 않는 상태(탄성 복원력은 0)가 되도록 설정된 것을 특징으로 하는 자동차용 차고계측 장치.The spiral spring 40 is wound on the rotating part 12 of the height measurement sensor 10, and a state in which elastic restoring force does not exist in a full bump state of a vehicle (elastic restoring force is 0). Garage measuring device for a vehicle, characterized in that set to be.
KR1020060096326A 2006-09-29 2006-09-29 Height measuring device for automobile KR20080029554A (en)

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