KR20030065929A - An adjust device of leaf springs in a vehicle - Google Patents

An adjust device of leaf springs in a vehicle Download PDF

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Publication number
KR20030065929A
KR20030065929A KR1020020006014A KR20020006014A KR20030065929A KR 20030065929 A KR20030065929 A KR 20030065929A KR 1020020006014 A KR1020020006014 A KR 1020020006014A KR 20020006014 A KR20020006014 A KR 20020006014A KR 20030065929 A KR20030065929 A KR 20030065929A
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KR
South Korea
Prior art keywords
pressure
leaf spring
cylinder
vehicle
hydraulic
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KR1020020006014A
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Korean (ko)
Inventor
이정훈
Original Assignee
현대자동차주식회사
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Priority to KR1020020006014A priority Critical patent/KR20030065929A/en
Publication of KR20030065929A publication Critical patent/KR20030065929A/en

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Classifications

    • 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
    • B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • B60G17/027—Mechanical springs regulated by fluid means
    • B60G17/0275—Mechanical springs regulated by fluid means the mechanical spring being a leaf spring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
    • 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
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/12—Mounting of springs or dampers
    • B60G2204/121—Mounting of leaf springs
    • 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
    • B60G2400/05—Attitude

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

Abstract

PURPOSE: A leaf spring adjuster for a vehicle is provided to improve the safety of the vehicle, and to stabilize the pose of the vehicle by correcting the pose actively according to weight changes of load with controlling the leaf spring. CONSTITUTION: A leaf spring adjusting apparatus is composed of a spring guide(3) moving the end of a leaf spring(1) for changing the distance between both ends of the leaf spring; a linear driving unit applying pressure to the end of the leaf spring for reducing the distance; a pressure generating unit generating pressure according to weight of load on the vehicle; and a pressure regulating unit controlling and transmitting pressure from the pressure generating unit to the linear driving unit. The linear driving unit includes a hydraulic cylinder(5), and the pressure generating unit has a loading panel(9) and plural hydraulic pressure generating cylinders.

Description

차량의 리프스프링 조절장치{AN ADJUST DEVICE OF LEAF SPRINGS IN A VEHICLE}Lift spring adjustment device of vehicle {AN ADJUST DEVICE OF LEAF SPRINGS IN A VEHICLE}

본 발명은 서스펜션에 리프스프링이 채용된 차량에 관한 것으로서, 보다 상세하게는 차량의 적재중량에 따라 리프스프링의 처짐량이 달라서 발생되는 차량의 자세변화를 자동적으로 교정할 수 있도록 하는 장치에 관한 것이다.The present invention relates to a vehicle employing a leaf spring in the suspension, and more particularly, to a device for automatically correcting the attitude change of the vehicle caused by the amount of deflection of the leaf spring according to the load weight of the vehicle.

도 1에는 종래의 리프스프링을 장착하고 있는 차량의 구조가 개략적으로 도시되어 있는바, 상기와 같이 단순히 차체(100)를 차륜(102)에 대하여 탄성적으로 지지하도록 하는 구조에서는 상기 리프스프링(104)의 고정된 물리적 성질에 의해 차량에 적재되는 하중의 변화량에 따라 차량의 자세가 변화되는 문제점이 있다.FIG. 1 schematically shows a structure of a vehicle equipped with a conventional leaf spring. As shown in FIG. 1, the leaf spring 104 is simply configured to elastically support the vehicle body 100 with respect to the wheel 102. There is a problem that the attitude of the vehicle is changed according to the amount of change of the load loaded on the vehicle by the fixed physical property of the).

즉, 리프스프링(104)의 양단은 섀시의 프레임에 힌지축을 통해 고정되고 그 중간부분에 차축(106)이 연결되어 차륜(102)을 통해 지면으로부터 차체(100)를 탄성적으로 지지하도록 하고 있는 구조이므로, 상기 리프스프링(104)의 변형량은 차량에 적재되는 하물의 중량에 비례하여 증가하는데, 차량의 사용시에 적재되는 하물은 그 상황에 따라 계속해서 변화되는 것이므로, 그에 따라 상기 리프스프링(104)의 처짐량이 변화되고, 이것은 바로 차체(100)의 자세가 변화됨을 의미하는 것이다.That is, both ends of the leaf spring 104 is fixed to the frame of the chassis through the hinge shaft and the axle 106 is connected to the middle portion thereof to elastically support the vehicle body 100 from the ground through the wheel 102. Since the structure, the deformation amount of the leaf spring 104 increases in proportion to the weight of the load loaded on the vehicle, the load loaded in the use of the vehicle is continuously changing according to the situation, so that the leaf spring 104 accordingly ), The deflection amount is changed, which means that the attitude of the vehicle body 100 is changed.

상기와 같이 차체의 자세가 변화되면 전조등의 조사각이 차체의 자세에 따라 크게 변화하게 되는 문제가 발생되고, 심한 경우 적재된 하물이 차량의 뒤쪽으로 쏠리게 되어 테일게이트를 파손시키거나, 나아가 하물이 차량에서 쏟아져 내리게 되는 문제를 발생시킴은 물론, 차량의 자세 불량에 따른 운전의 안전성도 해치게 된다.As described above, when the attitude of the vehicle body is changed, a problem arises in that the irradiation angle of the headlamp varies greatly depending on the attitude of the vehicle body, and in a severe case, the loaded cargo is slid toward the rear of the vehicle, thereby destroying the tailgate or further, Not only does it cause a problem of pouring down from the vehicle, but also impairs the safety of driving due to poor posture of the vehicle.

상기한 바와 같은 문제점에 대한 대책으로 전조등을 다원화하여 각 상태에따라 다른 전조등을 작동하도록 하는 방법이 사용되고, 테일게이트의 잠금장치 강도를 상승시키는 등의 대책이 강구되었지만, 이러한 대책은 차량의 원가상승의 주요한 요인이 됨은 물론, 차량의 자세가 불안정해지는 근본적인 문제점을 해결하지 못해 차량의 안전운행에는 도움이 되지 못하는 실정이다.As a countermeasure for the problems described above, a method of diversifying the headlights to operate different headlights in accordance with each state is used, and measures such as increasing the strength of the tailgate locking device have been taken. As well as being a major factor, the vehicle's posture becomes unstable and does not solve the fundamental problem that does not help the safe operation of the vehicle.

이에 본 발명은 상기한 바와 같은 문제점을 해결하기 위하여 안출된 것으로서, 차량에 적재되는 하물의 중량변화에 따라 능동적으로 차량의 자세를 교정할 수 있도록 리프스프링을 제어함으로써, 차량의 안정된 자세를 확보함에 의해 종래의 불필요한 원가상승의 요인을 배제하고, 차량의 운전 안전성을 향상시키도록 하는 차량의 리프스프링 조절장치를 제공함에 그 목적이 있다.Accordingly, the present invention has been made to solve the above problems, by controlling the leaf spring to actively correct the attitude of the vehicle according to the weight change of the load loaded on the vehicle, to ensure a stable attitude of the vehicle Accordingly, an object of the present invention is to provide a leaf spring adjusting device for a vehicle, which eliminates unnecessary causes of cost increase and improves driving safety of the vehicle.

도 1은 종래기술에 의한 차량의 리프스프링 설치상태를 도시한 도면,1 is a view showing a state of installing a leaf spring of the vehicle according to the prior art,

도 2는 본 발명에 따른 차량의 리프스프링 조절장치를 도시한 도면,2 is a view showing a leaf spring adjustment device of the vehicle according to the present invention,

도 3은 본 발명의 작동원리를 설명한 도면이다.3 is a view for explaining the principle of operation of the present invention.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

1, 104; 리프스프링3; 스프링가이드1, 104; Leaf spring 3; Spring guide

5; 유압실린더7; 차체 플로어5; Hydraulic cylinder 7; Body floor

9; 적재패널11; 유압발생실린더9; Loading panel 11; Hydraulic cylinder

13; 메인실린더15; 유입구13; Main cylinder 15; Inlet

17; 유출구19; 하우징17; Outlet 19; housing

21; 제1통과홀23; 제1실린더21; First through hole 23; 1st cylinder

25; 제2통과홀27; 제2실린더25; Second passage hole 27; 2nd cylinder

29; 스프링29; spring

상기한 바와 같은 목적을 달성하기 위한 본 발명 차량의 리프스프링 조절장치는 리프스프링 양단의 거리를 변화시킬 수 있는 방향으로 리프스프링의 일단을 이동시킬 수 있도록 가이드하는 스프링가이드와, 상기 스프링가이드에 의해 가이드되어 있는 리프스프링의 일단에 리프스프링의 양단 거리가 좁아지게 하는 방향으로 압력을 제공하도록 설치된 직선구동수단과, 차량에 적재되는 하물의 중량에 의해 압력을 발생시키는 압력발생수단과, 상기 압력발생수단에서 발생된 압력을 제어하여 상기 직선구동수단에 제공하는 압력조절수단으로 구성된 것을 특징으로 한다.Leaf spring adjustment device of the present invention for achieving the above object is a spring guide for guiding the one end of the leaf spring in a direction that can change the distance between both ends of the leaf spring, and by the spring guide A linear driving means provided at one end of the guided leaf spring in a direction to narrow the distance between both ends of the leaf spring, a pressure generating means for generating pressure by the weight of the load loaded on the vehicle, and the pressure generation It characterized in that the pressure control means for controlling the pressure generated by the means to provide to the linear drive means.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

도 2는 본 발명에 따른 차량의 리프스프링 조절장치를 도시한 구성도로서, 차체에 적재되는 하물의 중량에 의해 발생되는 압력을 적절히 조절하여 리프스프링(1)의 일단(1-1)을 움직여 리프스프링(1)의 변형량(C)이 변화하도록 하는 구성이 도시되어 있다.Figure 2 is a block diagram showing a leaf spring adjustment device of the vehicle according to the present invention, by properly adjusting the pressure generated by the weight of the load on the vehicle body by moving one end 1-1 of the leaf spring (1) A configuration is shown in which the deformation amount C of the leaf spring 1 changes.

상기 리프스프링의 일단(1-1)을 움직여서 리프스프링의 변형량(C)을 변화시키는 원리를 도 3을 참조하여 살펴보면,Looking at the principle of changing the deformation amount (C) of the leaf spring by moving one end (1-1) of the leaf spring with reference to FIG.

하중이 걸리는 위치는Where the load is

이고, ego,

이로부터 변형량 C에 대한 2차 방정식을 구하면,From this, if you find the quadratic equation for strain C,

2C2+2EC-4E2+S*L-SW=0 이 되고, 결국,2C2 + 2EC-4E2 + S * L-SW = 0, and eventually

로 표현되는 바, Represented by

이로부터 리프스프링(1)의 변형량 C는 길이 L의 변화에 의해 조절이 가능하게 됨을 알 수 있으며, 리프스프링(1)에서 상기 E(마운팅부 반경)는 매우 작으므로 이를 무시하면, 리프스프링의 변형량 C는 하중과 상기 길이 L의 제곱근에 의해 결정됨을 알 수 있다.From this it can be seen that the deformation amount C of the leaf spring (1) can be adjusted by the change in the length L, the E (mounting unit radius) is very small in the leaf spring (1), ignoring this, It can be seen that the deformation amount C is determined by the load and the square root of the length L.

따라서, 본 발명에서는 상기 리프스프링의 변형량 C를 상기 길이 L에 의하여 조절하도록 하는 메커니즘을 제공하는 것으로서, 상기 L의 조절량은 차량에 적재되는 하물의 중량에 따라 조절되도록 되어 있다.Accordingly, the present invention provides a mechanism for adjusting the deformation amount C of the leaf spring by the length L, wherein the adjustment amount of L is adjusted according to the weight of the load loaded on the vehicle.

상기 스프링가이드(3)는 상기 리프스프링의 일단(1-1)이 피봇운동이 가능한상태로 직선 운동하여 리프스프링의 양단 거리(2L)가 좁아지게 하는 방향으로 이동할 수 있도록 되어 있으며, 상기 직선구동수단은 유체의 압력에 의해 작동되어 상기 리프스프링의 일단(1-1)에 압력을 가할 수 있는 유압실린더(5)로 구성되어 있다.The spring guide 3 is configured to move in a direction in which one end 1-1 of the leaf spring is linearly moved in a state capable of pivoting movement so that the distance 2L of both ends of the leaf spring is narrowed. The means consists of a hydraulic cylinder 5 which is actuated by the pressure of the fluid and can apply pressure to one end 1-1 of the leaf spring.

상기 압력발생수단은 하물이 적재되도록 차체 플로워(7)에 대해 평행하게 설치되는 적재패널(9)과, 상기 적재패널(9)의 하측에 마련되어 수직으로 작동함에 의해 내부의 유체에 압력의 변화를 발생시키는 다수의 유압발생실린더(11)로 구성되는데, 상기 다수의 유압발생실린더(11)는 상기 적재패널(9)이 균형을 유지하면서 적재되는 하물을 지지할 수 있도록 적재패널(9)의 하측에 골고루 분포되어 설치되며, 상기 각 유압발생실린더(11)로부터의 유체는 별도로 마련된 메인실린더(13)로 모여져서 상기 압력조절수단으로 제공되도록 되어 있다.The pressure generating means is provided with a loading panel 9 installed in parallel with the body floor 7 so that loads can be loaded, and provided at a lower side of the loading panel 9 to operate vertically to change the pressure in the fluid inside. It is composed of a plurality of hydraulic generating cylinder 11 for generating, the plurality of hydraulic generating cylinder 11 is the lower side of the loading panel 9 so that the loading panel 9 can support the load loaded while maintaining the balance Evenly distributed in the installation, the fluid from each of the hydraulic cylinders (11) are gathered into a separate main cylinder 13 is provided to the pressure control means.

상기 압력조절수단은 상기 압력발생수단측에 연결되는 유입구(15)와 상기 직선구동수단인 유압실린더(5)측에 연결되는 유출구(17)를 구비한 하우징(19)과, 상기 유입구(15)를 통해 공급된 유체가 통과하도록 다수의 제1통과홀(21)을 구비한 상태로 상기 하우징의 내측에 고정된 제1실린더(23)와, 상기 제1실린더(23)를 통과한 유체가 통과하도록 다수의 제2통과홀(25)을 구비한 상태로 상기 제1실린더(23) 내에서 섭동 가능하게 설치된 제2실린더(27)와, 상기 제2실린더(27)를 상기 제1실린더의 내측으로 탄성 지지하는 스프링(29)으로 구성되어 있다.The pressure regulating means includes a housing (19) having an inlet port (15) connected to the pressure generating means side and an outlet port (17) connected to the hydraulic cylinder (5) side, which is the linear driving means, and the inlet port (15). The first cylinder 23 is fixed to the inside of the housing with a plurality of first through holes 21 to allow the fluid supplied through the passage to pass through, and the fluid passing through the first cylinder 23 passes therethrough. The second cylinder 27 and the second cylinder 27 installed in the first cylinder 23 so as to be perturbable in the first cylinder 23 with a plurality of second passage holes 25 so as to be inside of the first cylinder. The spring 29 is elastically supported.

여기서, 상기 제2실린더(27)는 일측이 막혀서 상기 제1실린더(23)를 통해 공급되는 유압에 의해 도면상 우측으로 이동되도록 하는 압력을 받기에 용이하도록되어 있다.Here, the second cylinder 27 is easy to receive the pressure to be moved to the right in the drawing by the hydraulic pressure supplied through the first cylinder 23 is blocked on one side.

상기한 바와 같이 구성된 본 발명의 작용을 설명하면 다음과 같다.Referring to the operation of the present invention configured as described above are as follows.

상기 적재패널(9)에 하물이 적재되면, 상기 유압발생실린더(11)는 적재되는 하물의 중량에 따라 하측으로 이동되면서 내부의 유체에 압력을 발생시키게 되며, 상기와 같이 발생된 압력은 상기 메인실린더(13)를 통하여 상기 유압조절수단의 하우징(19)으로 공급된다.When the load is loaded on the loading panel 9, the hydraulic generating cylinder 11 is moved downward in accordance with the weight of the loaded load to generate pressure in the fluid therein. The cylinder 13 is supplied to the housing 19 of the hydraulic pressure control means.

상기 하우징의 유입구(15)로 유입된 유체는 상기 제1실린더(23)를 경유하여 상기 제2실린더(27)를 통과한 후 유출구(17)를 통해 빠져나가, 상기 유압실린더(5)에 제공되어, 유압실린더(5)에 의해 상기 리프스프링의 일단(1-1)이 상기 스프링가이드(3) 상에서 직선 이동하여 리프스프링(1)의 양단 거리가 좁아지도록 ΔL만큼 이동되고, 이에 따라 상기 하물이 적재됨에 의해 변화되었던 리프스프링 변형량의 변화(ΔC)가 복원되어 공차시의 차량자세로 회복하게 된다.The fluid introduced into the inlet 15 of the housing passes through the second cylinder 27 via the first cylinder 23, then exits through the outlet 17, and is provided to the hydraulic cylinder 5. Thus, one end 1-1 of the leaf spring is linearly moved on the spring guide 3 by the hydraulic cylinder 5 so as to decrease the distance between both ends of the leaf spring 1 by ΔL. The change ΔC of the leaf spring deformation amount, which has been changed by the loading, is restored to recover the vehicle position at the time of tolerance.

이때, 상기 유압조절수단을 통과하는 유체의 압력은 상기 제2실린더(27)와 제1실린더(23)의 상대적인 겹침량에 의해서 조절되는 바, 차량의 운행중에 발생되는 동하중에 의해 유체에 유동이 발생하면 상기 제1실린더(23)와 제2실린더(27)가 서로 얼마나 겹쳐졌는가에 따라서 상기 제1통과홀(21)과 제2통과홀(25)이 겹쳐지면서 형성하는 유체의 통과 단면적이 변화함에 따라 이곳을 통과하는 유체의 압력이 조절되어 상기 유압실린더(5)에 제공되는 압력이 결정되게 된다.At this time, the pressure of the fluid passing through the hydraulic pressure control means is controlled by the relative overlap amount of the second cylinder 27 and the first cylinder 23, the flow of the fluid by the dynamic load generated during the operation of the vehicle When it occurs, the cross-sectional area of the fluid formed by overlapping the first through hole 21 and the second through hole 25 changes depending on how much the first cylinder 23 and the second cylinder 27 overlap each other. As such, the pressure of the fluid passing therethrough is adjusted to determine the pressure provided to the hydraulic cylinder 5.

즉, 상기 제2실린더(27)는 상기 적재 하물로부터 비롯되는 유압과 스프링(29)이 제공하는 탄성력 및 차륜측으로부터 비롯되어 유압실린더(5)를 통해역류하는 유압이 서로 균형을 이루는 상태에 의해 상기 제1실린더(23)와의 겹침량이 조절되어 상기 제1통과홀(21)과 제2통과홀(25)이 형성하는 유체의 통과 단면적이 변화되도록 하고, 이에 따라 이곳을 통과할 수 있는 유체의 유량을 제어함에 의해 상기 유압실린더(5)에 최적의 유압이 공급될 수 있도록 하는 것이다.That is, the second cylinder (27) is in a state in which the hydraulic pressure originating from the loading load and the elastic force provided by the spring 29 and the hydraulic pressure originating from the wheel side and flowing back through the hydraulic cylinder (5) are balanced with each other. The amount of overlap with the first cylinder 23 is adjusted to change the cross sectional area of the fluid formed by the first through hole 21 and the second through hole 25, and thus the flow rate of the fluid that can pass therethrough. By controlling the to ensure that the optimum hydraulic pressure is supplied to the hydraulic cylinder (5).

상기와 같은 작동은 상기 적재패널(9) 위에 적재되는 하물의 중량에 따라 자동적으로 이루어지게 되므로, 차량은 항상 미리 설정된 최적의 자세를 유지할 수 있게 된다.Since the above operation is automatically performed according to the weight of the load loaded on the loading panel 9, the vehicle can always maintain a predetermined optimal posture.

이상 설명한 바와 같이 본 발명에 의하면, 차량에 적재되는 하물의 중량변화에 따라 능동적으로 차량의 자세를 교정할 수 있도록 리프스프링을 제어함으로써, 차량의 안정된 자세를 확보함에 의해 종래의 불필요한 원가상승의 요인을 배제하고, 차량의 운전 안전성을 향상시키도록 한다.As described above, according to the present invention, the leaf spring is controlled to actively correct the attitude of the vehicle according to the change in the weight of the load loaded on the vehicle, thereby securing a stable attitude of the vehicle, thereby causing the conventional unnecessary cost increase. To improve the driving safety of the vehicle.

Claims (5)

리프스프링 양단의 거리를 변화시킬 수 있는 방향으로 리프스프링의 일단을 이동시킬 수 있도록 가이드하는 스프링가이드와;A spring guide for guiding one end of the leaf spring in a direction capable of changing the distance between both ends of the leaf spring; 상기 스프링가이드에 의해 가이드되어 있는 리프스프링의 일단에 리프스프링의 양단 거리가 좁아지게 하는 방향으로 압력을 제공하도록 설치된 직선구동수단과;Linear driving means installed at one end of the leaf spring guided by the spring guide to provide pressure in a direction in which the distance between both ends of the leaf spring is narrowed; 차량에 적재되는 하물의 중량에 의해 압력을 발생시키는 압력발생수단과;Pressure generating means for generating pressure by the weight of the load loaded on the vehicle; 상기 압력발생수단에서 발생된 압력을 제어하여 상기 직선구동수단에 제공하는 압력조절수단Pressure regulating means for controlling the pressure generated by the pressure generating means to provide to the linear drive means 으로 구성된 것을 특징으로 하는 차량의 리프스프링 조절장치.Leaf spring adjustment device of the vehicle, characterized in that consisting of. 제1항에 있어서,The method of claim 1, 상기 직선구동수단은The linear driving means 유압실린더로 이루어진 것을 특징으로 하는 차량의 리프스프링 조절장치.Leaf spring adjustment device for a vehicle, characterized in that consisting of a hydraulic cylinder. 제1항에 있어서,The method of claim 1, 상기 압력발생수단은The pressure generating means 하물이 적재되도록 차체 플로워에 대해 평행하게 설치되는 적재패널과;A loading panel installed in parallel with the body floor so that loads may be loaded; 상기 적재패널의 하측에 마련되어 수직으로 작동함에 의해 내부의 유체에 압력의 변화를 발생시키는 다수의 유압발생실린더로 구성된 것을 특징으로 하는 차량의 리프스프링 조절장치.It is provided on the lower side of the loading panel vertically operated leaf spring adjustment device, characterized in that composed of a plurality of hydraulic generating cylinder for generating a change in pressure in the fluid inside. 제3항에 있어서,The method of claim 3, 상기 다수의 유압발생실린더로부터의 유압을 모아 상기 압력조절수단으로 제공하도록 설치된 메인실린더를 포함하여 구성된 것을 특징으로 하는 차량의 리프스프링 조절장치.And a main cylinder installed to collect hydraulic pressure from the plurality of hydraulic generating cylinders and provide the hydraulic pressure to the pressure adjusting means. 제1항 내지 제4항의 어느 한 항에 있어서,The method according to any one of claims 1 to 4, 상기 압력조절수단은The pressure control means 상기 압력발생수단에 연결되는 유입구와 상기 직선구동수단에 연결되는 유출구를 구비한 하우징과;A housing having an inlet connected to the pressure generating means and an outlet connected to the linear driving means; 상기 유입구를 통해 공급된 유체가 통과하도록 다수의 제1통과홀을 구비한 상태로 상기 하우징의 내측에 고정된 제1실린더와;A first cylinder fixed inside the housing with a plurality of first through holes through which the fluid supplied through the inlet passes; 상기 제1실린더를 통과한 유체가 통과하도록 다수의 제2통과홀을 구비한 상태로 상기 제1실린더 내에서 섭동 가능하게 설치된 제2실린더와;A second cylinder perturbably installed in the first cylinder with a plurality of second passage holes to allow fluid passing through the first cylinder to pass therethrough; 상기 제2실린더를 상기 제1실린더의 내측으로 탄성 지지하는 스프링으로 구성된 것을 특징으로 하는 차량의 리프스프링 조절장치.Leaf spring adjustment device of the vehicle, characterized in that composed of a spring elastically supporting the second cylinder to the inside of the first cylinder.
KR1020020006014A 2002-02-02 2002-02-02 An adjust device of leaf springs in a vehicle KR20030065929A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100706447B1 (en) * 2003-12-16 2007-04-10 기아자동차주식회사 A leaf spring suspension in vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5963209A (en) * 1982-09-30 1984-04-10 Hino Motors Ltd Suspension device of leaf spring
US4456232A (en) * 1982-07-07 1984-06-26 Nhk Spring Co., Ltd. Apparatus for controlling friction between leaf springs of a laminated leaf spring assembly
KR20000012904U (en) * 1998-12-22 2000-07-15 정몽규 Car rear suspension
KR20020052595A (en) * 2000-12-26 2002-07-04 류정열 Automobile Suspension System

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4456232A (en) * 1982-07-07 1984-06-26 Nhk Spring Co., Ltd. Apparatus for controlling friction between leaf springs of a laminated leaf spring assembly
JPS5963209A (en) * 1982-09-30 1984-04-10 Hino Motors Ltd Suspension device of leaf spring
KR20000012904U (en) * 1998-12-22 2000-07-15 정몽규 Car rear suspension
KR20020052595A (en) * 2000-12-26 2002-07-04 류정열 Automobile Suspension System

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100706447B1 (en) * 2003-12-16 2007-04-10 기아자동차주식회사 A leaf spring suspension in vehicle

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