KR100448779B1 - a clamping structure of leaf spring for commercial vehicles - Google Patents

a clamping structure of leaf spring for commercial vehicles Download PDF

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Publication number
KR100448779B1
KR100448779B1 KR10-2001-0079400A KR20010079400A KR100448779B1 KR 100448779 B1 KR100448779 B1 KR 100448779B1 KR 20010079400 A KR20010079400 A KR 20010079400A KR 100448779 B1 KR100448779 B1 KR 100448779B1
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KR
South Korea
Prior art keywords
rubber
leaf spring
plates
clamping structure
plate
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KR10-2001-0079400A
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Korean (ko)
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KR20030049241A (en
Inventor
이기호
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현대자동차주식회사
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Priority to KR10-2001-0079400A priority Critical patent/KR100448779B1/en
Publication of KR20030049241A publication Critical patent/KR20030049241A/en
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Publication of KR100448779B1 publication Critical patent/KR100448779B1/en

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Classifications

    • 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
    • B60G11/10—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
    • B60G11/12—Links, pins, or bushes
    • 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
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/418—Bearings, e.g. ball or roller bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/70—Materials used in suspensions
    • B60G2206/73—Rubber; Elastomers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/80—Manufacturing procedures
    • B60G2206/82—Joining
    • B60G2206/8206—Joining by riveting
    • 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
    • B60G2600/44—Vibration noise suppression
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2306/00—Other features of vehicle sub-units
    • B60Y2306/09—Reducing noise

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

Abstract

본 발명은 상용차의 판스프링 클램핑 구조에 관한 것으로, 판스프링(10)이 하부 클램프 플레이트(13)와, 수직플레이트(22,23)의 상부에 설치된 회전축(26)의 러버(14)의 사이에 클램핑되되, 이 러버(14)는 원통형으로 형성되고, 상기 회전축(26)은 베어링(24,25)에 지지되어 회전할 수 있게 된다.The present invention relates to a leaf spring clamping structure of a commercial vehicle, the leaf spring 10 is between the lower clamp plate 13 and the rubber 14 of the rotary shaft 26 provided on the vertical plates (22, 23) Although clamped, the rubber 14 is formed in a cylindrical shape, and the rotating shaft 26 is supported by the bearings 24 and 25 to be able to rotate.

따라서, 상부판(10b) 변형에 따라 러버(14)가 회전될 수 있으므로 러버(14)에 마모가 발생하지 않고, 러버(14)는 회전축(26)에 의해 외부로 이탈될 수 없도록 되어 있다.Therefore, since the rubber 14 can be rotated according to the deformation of the upper plate 10b, no wear occurs in the rubber 14, and the rubber 14 cannot be detached to the outside by the rotation shaft 26.

따라서, 클램핑 상태가 지속적으로 견고히 유지되므로 판 간에 마찰소음이 발생하지 않고, 서스펜션의 횡방향 지지력이 저하되지 않으므로 조종 안정성이 저하되는 현상이 발생하지 않는다.Therefore, since the clamping state is continuously maintained firmly, friction noise does not occur between the plates, and the lateral support force of the suspension is not lowered, so that the steering stability is not lowered.

Description

상용차의 판스프링 클램핑 구조{a clamping structure of leaf spring for commercial vehicles}{A clamping structure of leaf spring for commercial vehicles}

본 발명은 상용차의 판스프링 클램핑 구조에 관한 것으로, 특히 판스프링의 상부를 압축하는 러버가 이탈되지 않도록 된 상용차의 판스프링 클램핑 구조에 관한 것이다.The present invention relates to a leaf spring clamping structure of a commercial vehicle, and more particularly to a leaf spring clamping structure of a commercial vehicle in which the rubber compressing the upper portion of the leaf spring is not separated.

일반적으로 상용차의 현가장치에는 주로 구조가 간단하고, 견고하며, 높은 하중에도 견딜 수 있는 판스프링이 사용된다.In general, a suspension spring of a commercial vehicle mainly uses a leaf spring that is simple in structure, robust, and capable of withstanding high loads.

상기 판스프링은 다수의 얇은 판들이 겹쳐져 이루어지는 것으로, 그 중간 부분을 클램핑(clamping)해 주는 것이 필요하며, 종래의 클램핑 구조는 도 1에 도시된 바와 같다.The leaf spring is formed by overlapping a plurality of thin plates, and it is necessary to clamp the middle portion thereof, and the conventional clamping structure is shown in FIG. 1.

즉, 판스프링(10)을 이루는 판들의 사이에 판 간의 마찰을 감소시키기 위한 사일런스패드(11)가 끼워지고, 판 중 하부판(10a)은 상방으로 삽입되는 리벳(12)으로 하부 클램프 플레이트(13)에 고정되며, 상부판(10b)의 상면에 블록형의 러버(14)가 놓여진 뒤, 이 러버(14)의 위에 위치되는 상부 클램프 플레이트(15)가 보울트(16)와 너트(17)로 상기 하부 클램프 플레이트(13)에 고정되는 구조로 이루어진다.That is, the silence pad 11 for reducing the friction between the plates is inserted between the plates forming the leaf spring 10, the lower plate 10a of the plate is a lower clamp plate 13 with a rivet 12 inserted upwards ), The block-shaped rubber 14 is placed on the upper surface of the upper plate 10b, and then the upper clamp plate 15 positioned on the rubber 14 is bolted to the nut 16 and the nut 17. It is made of a structure that is fixed to the lower clamp plate (13).

한편, 상기 판스프링(10)을 이루는 판들 중에서 길이가 가장 긴 상기 상부판(10b)은 현가작용--차체의 범프(bump)와 리바운드(rebound) 거동중의 차체 지지--중 변형량이 가장 크며, 따라서 상기 러버(14)는 시간이 지남에 따라 마모된다. 또한, 상기 러버(14)는 단순한 블록형상으로 되어 있고, 보울트(16)와 너트(17)의 체결에 의한 상부 클램프 플레이트(15)의 누름작용 이외에는 장착위치를 고정해 주는 아무런 구조도 적용되어 있지 않기 때문에 마모량이 증가하게 되면 결국 장착위치에서 이탈하게 된다.Meanwhile, the top plate 10b having the longest length among the plates constituting the leaf spring 10 has the largest amount of deformation during suspension action--body support during bump and rebound behavior of the body. Thus, the rubber 14 wears over time. In addition, the rubber 14 has a simple block shape, and there is no structure to fix the mounting position other than the pressing action of the upper clamp plate 15 by fastening the bolt 16 and the nut 17. If the amount of wear increases, it will eventually break out of the mounting position.

이와 같이 상기 러버(14)가 이탈되면 판들의 견고하게 밀착되지 않게 되어 판간 마찰소음이 증가하고, 특히 서스펜션의 횡방향 지지력이 감소하게 되어 차량의 조종 안정성이 저하되는 문제점이 있었다.As such, when the rubber 14 is separated, the plates are not tightly adhered to each other so that friction noise between the plates increases, and in particular, the lateral support force of the suspension decreases, so that the steering stability of the vehicle is deteriorated.

이에 본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로, 현가작용 중 상부판의 변형에 의해 러버의 마모가 발생하지 않게 되어, 러버가 장착위치에서 이탈하지 않게 되며, 이로써 판스프링이 견고한 클램핑 상태를 유지할 수 있게 되어 판 간에 마찰소음이 발생하지 않고, 서스펜션의 횡방향 지지력 감소로 인한 조종 안정성의 저하 현상이 일어나지 않도록 된 상용차의 판스프링 클램핑 구조를 제공함에 그 목적이 있다.Accordingly, the present invention has been made to solve the above problems, the wear of the rubber is not caused by the deformation of the top plate during the suspension action, the rubber is not released from the mounting position, thereby the plate spring is firmly clamped It is an object of the present invention to provide a plate spring clamping structure of a commercial vehicle which can maintain the state so that friction noise does not occur between the plates and the deterioration of steering stability due to the reduction of the lateral bearing capacity of the suspension does not occur.

도 1은 종래 상용차의 판스프링 클램핑 구조를 도시한 단면도,1 is a cross-sectional view showing a leaf spring clamping structure of a conventional commercial vehicle,

도 2는 본 발명에 따른 판스프링 클램핑 구조를 도시한 단면도,2 is a cross-sectional view showing a leaf spring clamping structure according to the present invention,

도 3은 도 2의 측면도이다.3 is a side view of FIG. 2.

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

10 : 판스프링, 10a : 하부판,10: leaf spring, 10a: lower plate,

10b : 상부판, 11 : 사일런스패드,10b: top plate, 11: silence pad,

12 : 리벳, 13 : 하부 클램프 플레이트,12: rivet, 13: lower clamp plate,

20,21 : 보울트, 22,23 : 수직플레이트,20,21: bolt, 22,23: vertical plate,

24,25 : 베어링, 26 : 회전축.24, 25 is a bearing, 26 is a rotating shaft.

상기와 같은 목적을 달성하기 위한 본 발명은, 판들간에 사일런스패드가 끼워지고, 하부판이 리벳으로 하부 클램프 플레이트에 고정되며, 상부판에 밀착되어 판들을 눌러주는 러버를 구비한 구조를 포함하는 상용차의 판스프링 클램핑 구조에 있어서, 상기 러버가 회전되는 원통형으로 이루어진 것을 특징으로 한다.The present invention for achieving the above object, a commercial vehicle including a structure having a rubber pad is inserted between the plates, the lower plate is fixed to the lower clamp plate by rivets, the rubber close to the upper plate to press the plates. In the spring clamping structure of the, characterized in that the rubber is made of a cylindrical rotation.

따라서, 상기 러버에 상부판과의 마찰에 의한 마모가 발생하지 않게 됨으로써 시간이 지나도 러버가 장착위치에서 이탈되지 않고 지속적인 가압상태를 유지할 수 있게 된다.Accordingly, wear of the rubber by friction with the upper plate does not occur, so that the rubber can be kept in a pressurized state without being released from the mounting position over time.

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 상용차의 판스프링 클램핑 구조의 단면도이고, 도 3은 이의 우측면도이다.Figure 2 is a cross-sectional view of the leaf spring clamping structure of a commercial vehicle according to the invention, Figure 3 is a right side view thereof.

종래와 동일하게 판스프링(10)은 복수의 판들로 구성되며, 이 판들의 사이에는 사일런스패드(11)가 끼워지고, 판들 중에서 하부판(10a)은 리벳(12)으로 하부 클램프 플레이트(13)에 장착된다.As in the prior art, the leaf spring 10 is composed of a plurality of plates, a silence pad 11 is sandwiched between the plates, and among the plates, the lower plate 10a is riveted to the lower clamp plate 13. Is mounted.

상기 하부 클램프 플레이트(13)의 양측면에는 각각 수직플레이트(22,23)가 보울트(20,21)로 장착되고, 이 수직플레이트(22,23)들의 상부에는 베어링(24,25)이 설치된다.Vertical plates 22 and 23 are mounted on both sides of the lower clamp plate 13 as bolts 20 and 21, respectively, and bearings 24 and 25 are installed on upper portions of the vertical plates 22 and 23.

또한, 상기 수직플레이트(22,23)들의 상부에는 회전축(26)이 설치되는데, 이 회전축(26)의 양단은 상기 베어링(24,25)에 각각 지지된다.In addition, a rotating shaft 26 is installed on the upper portions of the vertical plates 22 and 23, and both ends of the rotating shaft 26 are supported by the bearings 24 and 25, respectively.

한편, 상기 회전축(26)에는 원통형의 러버(14)가 장착되어, 조립 완료 상태에서 상기 러버(14)는 상기 상부판(10b)에 밀착되어, 판들을 가압한다.On the other hand, the cylindrical shaft 14 is mounted on the rotary shaft 26, the rubber 14 in close contact with the upper plate (10b) in the assembled state, and presses the plates.

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

전술한 바와 같이 주행 중 차체의 범프 & 리바운드시 판스프링(10)의 판들중 상기 상부판(10b)이 가장 크게 변형되며, 이에 의해 러버(14)와의 밀착면에 마찰이 발생한다.As described above, the upper plate 10b is most deformed among the plates of the leaf spring 10 during bumping and rebounding of the vehicle body, and friction occurs on the contact surface with the rubber 14.

그러나, 본 발명의 상기 러버(14)는 원통형상을 가지며, 회전축(26)에 장착되어 회전될 수 있도록 되어 있기 때문에, 상부판(10b) 변형시 그에 대응하여 회전됨으로써 마모가 발생하지 않게 된다.However, since the rubber 14 of the present invention has a cylindrical shape and is rotatably mounted on the rotating shaft 26, the rubber 14 is rotated correspondingly when the upper plate 10b is deformed so that wear does not occur.

따라서, 상기 러버(14)는 시간이 경과하여도 항상 처음과 동일한 강도로 판들을 가압해 줄 수 있게 됨으로써 판들이 견고하게 밀착되어 있어, 작동시 마찰소음이 크게 발생하지 않게 된다.Therefore, the rubber 14 is able to pressurize the plates with the same strength as the first time even after time passes, so that the plates are firmly adhered to each other, so that the friction noise is not greatly generated during operation.

또한, 상기 러버(14)는 회전축(26)이 내부를 관통하고 있기 때문에 구조적으로 장착위치에서 이탈하지 않으며, 이에 따라 러버(14) 이탈로 인한 서스펜션의 횡방향 지지력 저하현상이 일어나지 않게 되어, 차량의 조종 안정성이 저하되지 않게 된다.In addition, since the rubber shaft 14 penetrates the inside, the rubber 14 is not structurally separated from the mounting position, and thus, the lowering of the lateral bearing capacity of the suspension due to the rubber 14 is not caused. The stability of steering will not be reduced.

이상 설명한 바와 같이 본 발명에 따르면, 판스프링을 가압해주는 러버가 마모되지 않고 장착위치에서 이탈되지 않음으로써 항상 판스프링이 견고하게 클램핑되어 있게 되므로 판간 마찰소음이 감소되고, 횡방향 지지력 상실로 인한 조종 안정성의 저하현상을 방지할 수 있게 된다.As described above, according to the present invention, since the rubber pressurizing the leaf spring is not worn and is not released from the mounting position, the leaf spring is firmly clamped at all times, so that the friction between the plates is reduced, and the steering is caused by the loss of lateral support. The degradation of stability can be prevented.

또한, 상기 러버가 마모되지 않음으로써 교체할 필요가 없게 되는 장점도 있다.In addition, there is an advantage that the rubber does not need to be replaced because it is not worn.

Claims (2)

판스프링(10)의 판들간에 사일런스패드(11)가 끼워지고, 하부판(10b)이 리벳(12)으로 하부 클램프 플레이트(13)에 고정되며, 상부판(10b)에 밀착되어 판들을 눌러주는 러버(14)를 구비한 구조를 포함하는 상용차의 판스프링 클램핑 구조에 있어서,The silence pad 11 is inserted between the plates of the leaf spring 10, the lower plate 10b is fixed to the lower clamp plate 13 by the rivet 12, and the upper plate 10b is pressed against the plates. In the leaf spring clamping structure of a commercial vehicle comprising a structure having a rubber (14), 상기 러버(14)가 회전되는 원통형으로 이루어진 것을 특징으로 하는 상용차의 판스프링 클램핑 구조.Leaf spring clamping structure of a commercial vehicle, characterized in that the rubber 14 is made of a cylindrical rotation. 제 1항에 있어서, 상기 하부 클램프 플레이트(13)의 양측면에 수직플레이트(22,23)가 장착되고, 이 수직플레이트(22,23)의 상부에 베어링(24,25)이 설치되며, 이 베어링(24,25)에 양단이 지지되는 회전축(26)이 설치되고, 이 회전축(26)에 상기 러버(14)가 설치되는 것을 특징으로 하는 상용차의 판 스프링 클램핑 구조.2. The vertical plate (22, 23) is mounted on both sides of the lower clamp plate (13), and the bearings (24, 25) are provided on the vertical plates (22, 23). A plate spring clamping structure of a commercial vehicle, characterized in that a rotary shaft (26) having both ends supported on (24,25) is provided, and the rubber (14) is provided on the rotary shaft (26).
KR10-2001-0079400A 2001-12-14 2001-12-14 a clamping structure of leaf spring for commercial vehicles KR100448779B1 (en)

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KR101043858B1 (en) * 2009-12-24 2011-06-22 대원강업주식회사 Silencer for leaf spring

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4433833A (en) * 1982-03-23 1984-02-28 Nhk Spring Co., Ltd. Apparatus for controlling the spring constant of a laminated leaf spring assembly
JPH0747828A (en) * 1993-06-07 1995-02-21 Monroe Auto Equip Co Method and device for absorbing resonance vibration of plate spring of suspension device
US5560590A (en) * 1990-01-26 1996-10-01 Detroit Steel Products Company, Inc. Friction control suspension assembly and friction control device for vehicles
KR970028528U (en) * 1995-12-26 1997-07-24 Leaf spring fixing structure of vehicle suspension system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4433833A (en) * 1982-03-23 1984-02-28 Nhk Spring Co., Ltd. Apparatus for controlling the spring constant of a laminated leaf spring assembly
US5560590A (en) * 1990-01-26 1996-10-01 Detroit Steel Products Company, Inc. Friction control suspension assembly and friction control device for vehicles
JPH0747828A (en) * 1993-06-07 1995-02-21 Monroe Auto Equip Co Method and device for absorbing resonance vibration of plate spring of suspension device
KR970028528U (en) * 1995-12-26 1997-07-24 Leaf spring fixing structure of vehicle suspension system

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