KR20030093771A - a rear tandem suspension of large commercial vehicles - Google Patents

a rear tandem suspension of large commercial vehicles Download PDF

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Publication number
KR20030093771A
KR20030093771A KR1020020031615A KR20020031615A KR20030093771A KR 20030093771 A KR20030093771 A KR 20030093771A KR 1020020031615 A KR1020020031615 A KR 1020020031615A KR 20020031615 A KR20020031615 A KR 20020031615A KR 20030093771 A KR20030093771 A KR 20030093771A
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KR
South Korea
Prior art keywords
leaf spring
axles
spring
tandem suspension
frame
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KR1020020031615A
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Korean (ko)
Inventor
김우철
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현대자동차주식회사
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Priority to KR1020020031615A priority Critical patent/KR20030093771A/en
Publication of KR20030093771A publication Critical patent/KR20030093771A/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/17—Parts or details of roller shutters, e.g. suspension devices, shutter boxes, wicket doors, ventilation openings
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/17—Parts or details of roller shutters, e.g. suspension devices, shutter boxes, wicket doors, ventilation openings
    • E06B9/17076—Sealing or antirattling arrangements
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/17—Parts or details of roller shutters, e.g. suspension devices, shutter boxes, wicket doors, ventilation openings
    • E06B2009/17053—Door in shutter screen; wicket door

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

PURPOSE: A rear tandem suspension of a large-sized commercial vehicle is provided to remove collision impact and noise of a leaf spring and a thrust bracket in turning, to reduce weight by avoiding using the thrust bracket, and to uniformly hold the arrangement state of an axle. CONSTITUTION: A rear tandem suspension of a large-sized commercial vehicle is composed of a leaf spring(3) mounted to a trunnion base(2) integrally fixed to a frame(1), wherein both ends of the leaf spring are supported by front and rear axles(4,5), respectively. Both ends of the leaf spring are fixed to the front and rear axles by the medium of a pin(13) and connected not to slide on the axles but to move. The trunnion base and the leaf spring are connected by a torsion bar spring(14) to generate relative displacement of the leaf spring with respect to the frame.

Description

대형 상용차의 리어 텐덤 서스펜션{a rear tandem suspension of large commercial vehicles}Rear tandem suspension of large commercial vehicles

본 발명은 상용차의 서스펜션에 관한 것으로, 특히 대형 상용차의 리어 텐덤 서스펜션에 관한 것이다.FIELD OF THE INVENTION The present invention relates to suspension of commercial vehicles, and more particularly to rear tandem suspension of large commercial vehicles.

일반적으로 대형 상용차는 많은 양의 화물을 적재하는 경우가 많으므로, 후축을 2축으로 구성하여 하중을 분산시킴으로써 차체를 안정적으로 지지할 수 있도록 하고 있으며, 이와 같은 후 2축 시스템을 리어 더블 액슬(rear double axle) 또는 리어 텐덤 액슬(rear tandem axle) 시스템이라 한다.In general, a large commercial vehicle often loads a large amount of cargo, so the rear axle is composed of two axles to distribute the load so that the vehicle body can be stably supported. It is called a rear double axle or rear tandem axle system.

그리고, 상기 리어 텐덤 액슬 시스템에 적용되는 서스펜션 시스템은 도 1에 도시된 바와 같이, 프레임(1)에 고정된 트러니언 베이스(2)에 판스프링(3)이 장착되고, 이 판스프링(3)의 양단은 전·후의 액슬(4,5)위에 스프링시트(6,7)을 사이에 두고 얹혀져 있으며, 상기 액슬(4,5)들은 상기 트러니언 베이스(2)와 프레임(1)에 장착된 브라켓(8)에 장착된 레디어스로드(9)들에 연결되어 불규칙한 진동이 억제되도록 되어 있다.In addition, the suspension system applied to the rear tandem axle system has a leaf spring (3) mounted on the trunnion base (2) fixed to the frame (1), as shown in Figure 1, the leaf spring (3) Both ends of the axle are mounted on the front and rear axles 4 and 5 with spring seats 6 and 7 interposed therebetween, and the axles 4 and 5 are mounted on the trunnion base 2 and the frame 1. It is connected to the radial rods 9 mounted on the bracket 8 to suppress irregular vibration.

한편, 상기와 같은 구조의 서스펜션을 갖춘 차량은 선회주행시 도 2와 같은 거동을 보이게 된다.On the other hand, the vehicle with the suspension of the above structure will show the same behavior as in Fig. 2 when turning.

즉, 도시된 바와 같이, 차량이 조향되면 프레임(1)과 이에 고정(판스프링(3)은 트러니언 베이스(2)의 상부에 U볼트(10)와 너트(11)에 의해 장착되어 있다. 도1참조.)된 판스프링(3)은 먼저 차량 진행 방향으로 방향 전환되나, 전·후 액슬(4,5)은 주행 관성에 의해 진행하던 방향으로 계속 진행하게 된다.That is, as shown, when the vehicle is steered, the frame 1 and its fixing (the leaf spring 3 is mounted on the upper portion of the trunnion base 2 by the U bolt 10 and the nut 11). 1. The leaf spring 3 is first turned in the vehicle traveling direction, but the front and rear axles 4 and 5 continue to travel in the direction of travel by the driving inertia.

이후 상기 판스프링(3)이 스프링시트(6,7) 위를 미끄러지면서 이동하여 전·후 액슬(4,5)의 양측에 장착된 트러스트 브라켓(12)을 밀어 액슬(4,5)의 진행방향을 전환시킴으로써 완전한 방향전환이 이루어지도록 되어 있다.(전방 액슬(4)의 경우에는 차량 선회 방향 쪽의 트러스트 브라켓(12)에 판스프링(3)의 앞부분이 닿게 되고, 후방 액슬(5)의 경우에는 그 반대편 트러스트 브라켓(12)에 판스프링(3)의 뒷부분이 닿게 된다.)Then, the leaf spring 3 moves while sliding on the spring seats 6 and 7 to push the thrust brackets 12 mounted on both sides of the front and rear axles 4 and 5 to advance the axles 4 and 5. By changing the direction, a complete direction change is made. (In the case of the front axle 4, the thrust bracket 12 of the vehicle turning direction comes into contact with the front part of the leaf spring 3, and the rear axle 5 In this case, the rear side of the leaf spring 3 comes into contact with the opposite thrust bracket 12.)

따라서, 전·후 액슬(4,5)이 항상 언더스티어(under steer)방향으로 정렬되어 선회 안정성이 향상되고, 타이어 마모가 감소되는 장점이 있다.Therefore, the front and rear axles 4 and 5 are always aligned in the understeer direction, so that turning stability is improved and tire wear is reduced.

그러나, 상기와 같은 구조에서는 고 하중을 받는 판스프링(3)이 마찰력을 이기고 이동하여 트러스트 브라켓(12)을 치게 되므로 선회시 큰 충격과 소음이 발생하고 전·후 액슬(4,5)의 정렬 상태가 항상 바뀐다는 문제점이 있었다.However, in the structure as described above, the plate spring (3) under high load is moved to overcome the friction force to hit the thrust bracket (12), so that a large shock and noise occurs during turning, and the alignment of the front and rear axles (4, 5) There was a problem that the state always changes.

따라서, 상기 판스프링(3)의 전후 단부를 해당 액슬(4,5)에 고정하여 판스프링(3)이 액슬(4,5) 상에서 이동하지 못하도록 하면 상기 문제점을 해결할 수는 있으나, 이와 같이 판스프링(3)이 액슬(4,5)에 고정되어 프레임(1)과 액슬(4,5)간에 상대 변위가 발생하지 않으면 적절한 언더스티어 성능을 확보할 수 없게 되며, 특히 대형 상용차와 같이 선회반경이 크고, 휠 베이스가 작으며, 후 2축을 가진 차량에서는 횡방향 끌림에 의한 타이어 마모량이 크게 증가하고, 선회시 차량에 단속적인 진동(통통 튀는 현상)이 발생하게 되는 또 다른 문제점이 발생하게 된다.Therefore, if the front and rear ends of the leaf spring 3 is fixed to the axles 4 and 5 so that the leaf spring 3 cannot move on the axles 4 and 5, the above problem can be solved. If the spring (3) is fixed to the axles (4, 5) and there is no relative displacement between the frame (1) and the axles (4, 5), proper understeer performance cannot be ensured. In this large, small wheel base, and a vehicle having two rear axles, the tire wear amount due to the lateral drag is greatly increased, and an intermittent vibration occurs in the vehicle during turning. .

이에 본 발명은 상기와 같은 점들을 감안하여 안출된 것으로, 판스프링의 단부가 액슬에 고정되면서도 프레임과 판스프링 간에 소정량의 상대 거동이 가능함으로써 적절한 언더스티어링 성능 상실과 타이어 마모량 증대 및 단속적인 이상 진동에 대한 우려 없이, 선회시 판스프링과 트러스트 브라켓 간의 충돌로 인한 충격과 소음의 발생이 방지되고, 액슬의 정렬 상태를 일정하게 유지할 수 있도록 된 대형 상용차의 리어 텐덤 서스펜션을 제공함에 그 목적이 있다.Accordingly, the present invention has been made in view of the above-mentioned points, and while the end of the leaf spring is fixed to the axle, a certain amount of relative movement is possible between the frame and the leaf spring, so that the loss of proper understeering performance and tire wear increase and intermittent abnormality Its purpose is to provide rear tandem suspension of a large commercial vehicle that prevents the occurrence of shock and noise due to collision between the leaf spring and the thrust bracket during turning, and maintains the alignment of the axle constantly. .

도 1은 일반적인 대형 상용차량의 리어 텐덤 서스펜션을 도시한 도면,1 is a view showing a rear tandem suspension of a typical large commercial vehicle,

도 2는 차량 선회시 종래 리어 텐덤 서스펜션의 작동상태를 나타낸 평면도,2 is a plan view showing the operating state of the conventional rear tandem suspension when the vehicle is turning,

도 3은 차량 선회시 본 발명에 따른 리어 텐덤 서스펜션의 작동상태를 나타낸 평면도,3 is a plan view showing an operating state of the rear tandem suspension according to the present invention when the vehicle is turning;

도 4는 본 발명에 따른 판스프링 단부 장착 상태도,Figure 4 is a leaf spring end mounting state in accordance with the present invention,

도 5는 본 발명에 따른 판스프링 중앙부 장착 상태도이다.5 is a state of mounting the leaf spring center portion according to the present invention.

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

1 : 프레임,2 : 트러니언 베이스,1 frame, 2 trunnion base,

3 : 판스프링,3a,3b : 구멍,3: leaf spring, 3a, 3b: hole,

2a,3c,3d : 안착홈,4,5 : 액슬,2a, 3c, 3d: mounting groove, 4, 5: axle

6,7 : 스프링시트,8 : 브라켓,6,7 spring seat, 8 bracket,

9 : 레디어스로드,10 : U볼트,9: radial rod, 10 U bolt,

11 : 너트,12 : 트러스트 브라켓,11: nut, 12: trust bracket,

13 : 핀,14 : 토션바스프링,13: pin, 14: torsion bar spring,

14a : 헤드,14b : 베이스,14a: head, 14b: base,

15 : 스프링시트.15: spring seat.

상기와 같은 목적을 달성하기 위한 본 발명은, 판스프링의 단부가 액슬에 핀으로 고정되고, 중간부분은 트러니언 베이스에 토션바스프링으로 고정되는 구조로 이루어진다.The present invention for achieving the above object, the end of the leaf spring is fixed to the axle pin, the middle portion is made of a structure that is fixed to the trunnion base torsion spring.

따라서, 판스프링의 단부가 액슬에 고정되어 액슬의 상부에서 미끄러져 이동되지 않게 됨은 물론, 트러스트 브라켓을 설치할 필요가 없게 되며, 중간부분은 프레임에 대해 소정량(토션바스프링의 탄성한도범위) 상대 변위를 가질 수 있게 되어 언더스티어 성능을 적절히 유지할 수 있게 된다.Therefore, the end of the leaf spring is fixed to the axle so that it does not slide and move on the top of the axle, and there is no need to install a thrust bracket, and the middle part is relative to the frame in a predetermined amount (elastic limit range of the torsion spring). Displacement can be achieved to properly maintain understeer performance.

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 차량 선회시 본 발명에 따른 리어 텐덤 서스펜션의 작동상태를 나타낸 평면도로서, 본 발명은 판스프링(3)의 단부는 전·후 액슬(4,5)에 핀(13)으로 고정되고, 판스프링(3)의 중앙부는 트러니언 베이스(2)에 토션바스프링(14)을 매개로 장착된다.Figure 3 is a plan view showing the operating state of the rear tandem suspension according to the invention when the vehicle is turning, the end of the leaf spring (3) is fixed to the front and rear axles (4, 5) by the pin (13), The central portion of the leaf spring 3 is mounted to the trunnion base 2 via the torsion bar spring 14.

도 4에 도시된 바와 같이, 상기 핀(13)은 액슬(4,5)의 상면에 장착된 단순한 원통형의 핀으로서 판스프링(3)의 단부에 형성된 구멍(3a)에 삽입되어 판스프링(3)을 액슬(4,5) 상에서 미끄러져 이동하지 못하나, 피봇 포인트(pivot point)역할을 하여 회동될 수는 있도록 한다.As shown in FIG. 4, the pin 13 is a simple cylindrical pin mounted on the upper surfaces of the axles 4 and 5 and inserted into the hole 3a formed at the end of the leaf spring 3 to allow the leaf spring 3 to be inserted into the leaf spring 3. ) Does not slide on the axles (4, 5), but can be pivoted by acting as a pivot point.

한편, 도 5에 도시된 바와 같이, 상기 토션바스프링(14)은 판스프링(3)의 중앙에 형성된 구멍(3b)을 관통하여 판스프링(3)의 각 스프링판들을 조이는 센터볼트 역할을 겸하도록 되어 있으며, 상부의 헤드(14a)는 판스프링(13) 최상판의 상면에 형성된 안착홈(3c)에 삽입되고, 하부의 베이스(14b)는 상기 트러니언 베이스(2)의 상면에 형성된 안착홈(2a)에 삽입되며, 판스프링(3)과 상기 트러니언 베이스(2)의 사이에는 판스프링(3)의 최하판 하면에 형성된 안착홈(3d)에 삽입된 스프링시트(15)가 구비되어, 하중을 지지하면서 트러니언 베이스(2)와 판스프링(3) 간의 마찰면적을 줄여준다.On the other hand, as shown in Figure 5, the torsion bar spring 14 serves as a center bolt for tightening each spring plate of the leaf spring (3) through the hole (3b) formed in the center of the leaf spring (3) The upper head 14a is inserted into a seating groove 3c formed in the upper surface of the leaf spring 13, and the lower base 14b is seated in the upper surface of the trunnion base 2. The spring sheet 15 is inserted into the groove 2a and inserted into the seating groove 3d formed in the lower surface of the bottom plate of the leaf spring 3 between the leaf spring 3 and the trunnion base 2. This reduces the friction area between the trunnion base 2 and the leaf spring 3 while supporting the load.

이제 본 발명의 작용을 설명한다.The operation of the present invention will now be described.

우선 본 발명에서는 판스프링(3)의 단부가 액슬(4,5)에 핀(13)으로 고정되어 있으므로 판스프링(3)이 액슬(4,5)의 상면에서 이탈되지 않도록 스토퍼 역할을 해 주는 트러스트 브라켓(12)이 설치될 필요가 없게 된다.First, in the present invention, the end of the leaf spring (3) is fixed to the axles (4,5) by the pin 13, so that the leaf spring (3) serves as a stopper so as not to be separated from the upper surface of the axles (4,5) The trust bracket 12 does not need to be installed.

이와 같이, 판스프링(3)이 액슬(4,5)의 상면에서 미끄럼이동되지 않음으로써, 또한 상기 트러스트 브라켓(12)이 존재하지 않음으로써 종래 선회주행시 판스프링(3)과 액슬(4,5)이 부딪혀 강한 충격과 충돌 소음이 발생하던 현상이 해소되고, 액슬(4,5) 정렬 상태도 일정하게 유지된다.As such, the leaf spring 3 does not slide on the upper surfaces of the axles 4 and 5, and the thrust bracket 12 does not exist, so that the leaf spring 3 and the axle 4 and 5 in the conventional turning operation. ), The phenomenon of strong impact and collision noise is eliminated, and the alignment of the axles 4 and 5 is kept constant.

또한, 본 발명은 도 3에 도시된 바와 같이, 차량 선회 주행시 토션바스프링(14)에 의해 프레임(1)과 판스프링(3)간에 상대 변위가 발생할 수 있도록 되어 있다.(판스프링(3)은 토션바스프링(14)의 헤드(14a)와 일체로 회전하고, 트러니언 베이스(2)는 토션바스프링(14)의 베이스(14b)와 일체로 회전하면서 토션바스프링(14)이 비틀려짐으로써 상호간에 위상차가 발생한다.)In addition, in the present invention, as shown in FIG. 3, the relative displacement between the frame 1 and the leaf spring 3 can be caused by the torsion bar spring 14 during the vehicle turning driving. (The leaf spring 3) Is rotated integrally with the head 14a of the torsion bar spring 14, the torsion bar spring 14 is twisted while the trunnion base 2 rotates integrally with the base 14b of the torsion bar spring 14 The phase difference between them.)

즉, 상기 트러니언 베이스(2)가 프레임(1)에 고정되어 있고, 판스프링(3)과 트러니언 베이스(2)는 토션바스프링(14)에 의해 연결되어 있기 때문에, 트러니언 베이스(2)는 프레임(1)과 동시에 차체 진행 방향으로 선회되나, 이때 판스프링(3)은 상기 토션바스프링(14)의 비틀림량 만큼의 위상차를 가지고 프레임(1)의 위상변화를 추종하게 되므로 선회시 언더스티어 성능을 발휘하게 된다.That is, since the trunnion base 2 is fixed to the frame 1 and the leaf spring 3 and the trunnion base 2 are connected by the torsion bar spring 14, the trunnion base 2 ) Is rotated in the vehicle body traveling direction at the same time as the frame 1, but the leaf spring 3 follows the phase change of the frame 1 with the phase difference as much as the torsional amount of the torsion bar spring 14 when turning Understeer performance is achieved.

따라서, 양호한 선회 안정성이 유지되고, 타이어 마모량도 증가하지 않게 된다.Therefore, good turning stability is maintained and the tire wear amount also does not increase.

또한, 판스프링(3)이 액슬(4,5)에서 미끄러지지 않도록 고정되어 있음으로써 선회시 차량에 단속적인 진동(통통 튀는 현상)이 발생하지 않게 된다.In addition, the leaf spring 3 is fixed so as not to slip on the axles 4 and 5 so that an intermittent vibration (pumping phenomenon) does not occur in the vehicle during turning.

이상 설명한 바와 같이 본 발명에 따르면, 선회시 판스프링과 트러스트 브라켓의 충돌 충격 및 소음이 발생하지 않게 되고, 트러스트 브라켓이 사용되지 않으므로 중량이 감소되며, 액슬의 정렬상태가 일정하게 유지되는 효과가 있다.As described above, according to the present invention, the impact impact and noise of the leaf spring and the thrust bracket are not generated during the turning, the thrust bracket is not used, the weight is reduced, and the alignment of the axle is kept constant. .

또한, 판스프링의 단부가 액슬상에 고정되어 있음에도 불구하고 판스프링과 프레임 사이에 상대변위가 발생할 수 있도록 함으로써 선회시 언더스티어성능을 유지할 수 있도록 되어 있으며, 이에 따라 선회 안정성, 타이어 마모 정도를 양호하게 유지할 수 있게 된다.In addition, even though the end of the leaf spring is fixed on the axle, the relative displacement can occur between the leaf spring and the frame, so that the understeer performance can be maintained during the swing, thereby improving the swing stability and tire wear. I can keep it.

그리고, 액슬의 상부에서 판스프링이 미끄럼 이동되지 않으므로 선회시 차량에 불안정한 단속적 진동이 발생하지 않게 되는 효과가 있다.In addition, since the leaf spring is not slid in the upper portion of the axle, there is an effect that the unstable intermittent vibration does not occur in the vehicle when turning.

Claims (3)

프레임(1)에 일체로 고정된 트러니언 베이스(2)에 판스프링(3)이 장착되고, 이 판스프링(3)의 양단은 각각 후 2축 전·후 액슬(4,5)에 지지되는 구조의 대형 상용차의 리어 텐덤 서스펜션에 있어서,The leaf spring 3 is mounted to the trunnion base 2 fixed integrally to the frame 1, and both ends of the leaf spring 3 are supported by the rear biaxial front and rear axles 4 and 5, respectively. In the rear tandem suspension of the large commercial vehicle of the structure, 상기 판스프링(3)의 양단은 상기 전·후 액슬(4,5)에 핀(13)을 매개로 고정되어 액슬(4,5)의 상면에서 미끄럼 이동은 불가능하나, 회동은 가능한 상태로 연결되는 것을 특징으로 하는 대형 상용차의 리어 텐덤 서스펜션.Both ends of the leaf spring (3) is fixed to the front and rear axles (4,5) via a pin 13, the sliding movement is impossible on the upper surface of the axles (4,5), but the rotation is possible Rear tandem suspension of a large commercial vehicle characterized by the above-mentioned. 제 1항에 있어서, 상기 트러니언 베이스(2)와 상기 판스프링(3)은 토션바스프링(14)에 의해 연결되어 프레임(1)에 대해 판스프링(3)의 상대 변위 발생이 가능하도록 된 것을 특징으로 하는 대형 상용차의 리어 텐덤 서스펜션.2. The trunnion base (2) and the leaf spring (3) are connected by a torsion bar spring (14) so that relative displacement of the leaf spring (3) with respect to the frame (1) is possible. Rear tandem suspension of a large commercial vehicle characterized by the above-mentioned. 제 2항에 있어서, 상기 트러니언 베이스(2)와 판스프링(3)의 사이에는 스프링시트(15)가 설치되어 양자간의 마찰면적을 줄여주도록 된 것을 특징으로 하는 대형 상용차의 리어 텐덤 서스펜션.The rear tandem suspension of a large commercial vehicle according to claim 2, wherein a spring seat (15) is provided between the trunnion base (2) and the leaf spring (3) to reduce the friction area between the trunnion base (2) and the leaf spring (3).
KR1020020031615A 2002-06-05 2002-06-05 a rear tandem suspension of large commercial vehicles KR20030093771A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101379431B1 (en) * 2013-01-21 2014-03-28 국민대학교산학협력단 Reading test method and terminal device and system employing the same method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0045411A2 (en) * 1980-08-04 1982-02-10 Eaton Corporation Equalized four-spring tandem axle suspension
JPH07149128A (en) * 1993-11-30 1995-06-13 Hino Motors Ltd Tandem axle trunnion type rear suspension
US5634656A (en) * 1995-11-09 1997-06-03 Econoline Trailers, Inc. Axle alignment assembly
KR970034132A (en) * 1995-12-19 1997-07-22 전성원 Combined Structure of Leaf Spring Silence Pad in Commercial Vehicles
JPH10203127A (en) * 1997-01-17 1998-08-04 Hino Motors Ltd Tandem suspension
KR19980054351U (en) * 1996-12-31 1998-10-07 박병재 Clamp Structure of Leaf Spring

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0045411A2 (en) * 1980-08-04 1982-02-10 Eaton Corporation Equalized four-spring tandem axle suspension
JPH07149128A (en) * 1993-11-30 1995-06-13 Hino Motors Ltd Tandem axle trunnion type rear suspension
US5634656A (en) * 1995-11-09 1997-06-03 Econoline Trailers, Inc. Axle alignment assembly
KR970034132A (en) * 1995-12-19 1997-07-22 전성원 Combined Structure of Leaf Spring Silence Pad in Commercial Vehicles
KR19980054351U (en) * 1996-12-31 1998-10-07 박병재 Clamp Structure of Leaf Spring
JPH10203127A (en) * 1997-01-17 1998-08-04 Hino Motors Ltd Tandem suspension

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101379431B1 (en) * 2013-01-21 2014-03-28 국민대학교산학협력단 Reading test method and terminal device and system employing the same method

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