KR20090062207A - Suspension unit for automobile - Google Patents

Suspension unit for automobile Download PDF

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Publication number
KR20090062207A
KR20090062207A KR1020070129331A KR20070129331A KR20090062207A KR 20090062207 A KR20090062207 A KR 20090062207A KR 1020070129331 A KR1020070129331 A KR 1020070129331A KR 20070129331 A KR20070129331 A KR 20070129331A KR 20090062207 A KR20090062207 A KR 20090062207A
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South Korea
Prior art keywords
axle
vehicle
suspension
axle beam
present
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KR1020070129331A
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Korean (ko)
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이용수
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현대자동차주식회사
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Priority to KR1020070129331A priority Critical patent/KR20090062207A/en
Publication of KR20090062207A publication Critical patent/KR20090062207A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
    • B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
    • B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/30—Rigid axle suspensions
    • 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
    • B60G2202/15—Fluid spring
    • B60G2202/152—Pneumatic 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
    • 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
    • B60G2206/30—Constructional features of rigid axles

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

Abstract

An automotive suspension is provided to form offset of regular intervals at the central part of an axle beam and prevent interference from being not generated in the independent rotation of the axle beam by forming a hinge part to be deviated from the central line of a car body. An automotive suspension comprises a pair of rigid axle beams(10,11) having a tire mounting part(100) and an air spring support mounting part(110). Hinge parts(11a) of the axle beam located at the opposite direction to the tire mounting part are overlapped. The axle beam is mounted on car body frame through a mounting bracket. The hinge parts are offset-processed at regular intervals to the central part of the axle beam in order to be deviated from the central line of the car body with being overlapped to each other.

Description

자동차용 현가장치{Suspension unit for automobile}Suspension unit for automobile

본 발명은 자동차용 현가장치에 관한 것으로서, 더욱 상세하게는 일체 차축식 현가장치의 좌,우 바퀴를 독립적으로 거동할 수 있도록 하되, 일체 차축식 및 독립식 현가장치의 장점만을 적용하여 스프링 하단의 구성을 가볍게 함으로써, 주행 안정성 및 승차감을 향상시킬 수 있는 자동차용 현가장치에 관한 것이다. The present invention relates to a suspension device for automobiles, and more particularly, to independently move the left and right wheels of the integral axle suspension system, by applying only the advantages of the integral axle and independent suspension system, By lightening the configuration, the present invention relates to a vehicle suspension apparatus capable of improving running stability and riding comfort.

일반적으로 자동차용 현가장치는 좌,우 양쪽 바퀴가 한 개의 차축으로 연결되어 있는 리지드 액슬(rigid axle)식 과 좌,우 양쪽 바퀴가 독립해서 거동되는 독립식으로 구분된다.In general, a vehicle suspension system is divided into a rigid axle type in which both left and right wheels are connected to one axle and a standalone type in which both left and right wheels independently operate.

버스나 트럭 등 상용차에서는 리지드 액슬식으로 상용화되어 있으나, 점차 승차감이 우수하고 주행 안정성도 우수하도록 하는 독립식이 보편화되고 있는 추세이다. Commercial vehicles such as buses and trucks have been commercialized as rigid axle type, but the independent type which gradually improves the riding comfort and the driving stability is becoming more common.

그러나, 상용차에서는 자동차 자체의 중량이 크고 적차시의 중량도 크기 때문에 독립현가장치를 구성하는데 매우 복잡하여 제조원가가 매우 높고 스프링 하부 의 질량이 가벼운 독립현가장치의 장점을 살리지 못하고 중량만 증대되는 경우가 많이 발생하여 상용차의 독립현가장치는 승차감보다는 주행 안정성 위주의 핸들링 성능의 향상만을 위한 현가장치로 평가절하하고 있는 실정이다.However, in commercial vehicles, since the weight of the vehicle itself is large and the weight of the vehicle is large, it is very complicated to construct the independent suspension, so that the manufacturing cost is very high, and the weight of the independent suspension is light, and the weight of the lower part of the spring does not take advantage of the independent suspension. In many cases, the independent suspension system of a commercial vehicle is devalued as a suspension system only for improving the driving performance rather than the riding comfort.

일체 차축식 현가장치는 좌,우 양쪽 바퀴가 한축으로 연결되어 있어 한쪽 바퀴의 움직임이 다른 바퀴에도 영향을 미치며 액슬 빔과 로드 마운팅 브라켓 등으로 스프링 하단의 하중이 증대되는 구조로 되어 있어 승차감 및 주행 안정성 측면에서 불리하지만 독립 현가장치 대비, 구성이 간단하여 상용차에서 많이 사용되고 있다.The integrated axle suspension system is connected to both left and right wheels in one axle, so that the movement of one wheel affects the other wheels, and the axle beam and the rod mounting bracket increase the load on the bottom of the spring. Although it is disadvantageous in terms of stability, it is used in commercial vehicles because of its simple configuration compared to an independent suspension device.

반면, 상용차용 독립식 현가장치는 승용차와 유사하나 자동차 특성상, 스프링 상단의 하중이 증대되는 구조로 되어 있어 더블 위시본(double wishbone) 타입의 독립현가장치를 많이 사용하며 연결 부분의 강성 확보를 위하여 복잡한 구조로 제조되므로 비용 상승의 원인이 되는 문제점이 있다.On the other hand, the independent suspension system for commercial vehicles is similar to the passenger vehicle, but due to the characteristics of the vehicle, the load on the top of the spring is increased so that the double wishbone type independent suspension system is used to secure the rigidity of the connection part. Since it is manufactured in a complex structure, there is a problem that causes a cost increase.

따라서, 본 발명은 상기와 같은 문제점을 해결하기 위하여 발명한 것으로서, 리지드 액슬 빔의 타이어 장착부와 에어 스프링 서포트의 장착부는 그대로 유지하면서 액슬 빔의 중앙부에 오프셋이 형성되어 타이어 중심축은 일치시키면서 오프셋된 액슬 빔의 회전축이 간섭되지 않는 상태에서 제어할 수 있는 자동차용 현가장치를 제공하고자 한다. Accordingly, the present invention is invented to solve the above problems, the axle is offset while the tire mounting portion of the rigid axle beam and the mounting portion of the air spring support is formed in the center of the axle beam while keeping the tire center axis coincident An object of the present invention is to provide a vehicle suspension that can be controlled in a state where the axis of rotation of the beam does not interfere.

상기와 같은 목적을 달성하기 위하여 본 발명은 액슬이 일체로 이루어진 일체 차축 방식의 자동차용 현가장치에 있어서,In order to achieve the above object, the present invention provides an automobile axle suspension system of the integral axle system,

타이어 장착부(100)와 에어 스프링 서포트 장착부(110)가 설치되어 있는 리지드 액슬 빔(10,11) 한 쌍이 서로 대응하도록 설치되어지되, 상기 타이어 장착부(100)에 대하여 반대 방향에 위치한 액슬 빔(10,11)의 힌지부(10a,11a)가 서로 겹쳐진 상태로 설치된 것을 특징으로 한다.A pair of rigid axle beams 10 and 11 on which the tire mounting unit 100 and the air spring support mounting unit 110 are installed are installed so as to correspond to each other, and the axle beam 10 located in the opposite direction to the tire mounting unit 100. Hinge portions (10a, 11a) of, 11 is characterized in that installed in a state overlapping each other.

바람직한 실시예로서, 상기 액슬 빔(10,11)은 마운팅 브라켓(14)을 매개로 차체 프레임(15)에 장착된 것을 특징으로 한다.In the preferred embodiment, the axle beams 10 and 11 are mounted to the vehicle body frame 15 via the mounting bracket 14.

또한, 상기 힌지부(10a,11a)는 서로 겹쳐진 상태에서 자동차 바디의 중심선보다 벗어나도록 액슬 빔(10,11)의 중앙부에 일정한 간격의 오프셋(offset) 가공이 적용된 것을 특징으로 한다.In addition, the hinge portions 10a and 11a may be offset at regular intervals in the center of the axle beams 10 and 11 so as to deviate from the centerline of the vehicle body in a state where they overlap each other.

그리고, 상기 힌지부(10a,11a)는 차량 거동 시의 충격을 흡수할 수 있도록 고정핀(13)을 매개로 통상의 마운팅 부시(12)가 고정된 것을 특징으로 한다. In addition, the hinge parts 10a and 11a are characterized in that the usual mounting bush 12 is fixed through the fixing pin 13 so as to absorb shocks during vehicle behavior.

이상에서 본 바와 같이, 본 발명에 따른 자동차용 현가장치에 의하면, 일체 차축식 현가장치의 좌,우 바퀴를 독립적으로 거동할 수 있도록 하여 주행 안정성 및 승차감을 향상시키고, 어퍼아암 및 로워아암, 그리고 서포트 너클이 필요없게 되어 제조 비용을 절감하며 이로 인한 스프링 하단의 하중을 줄여 승차감을 더욱 향상시킬 수 있는 효과가 있다.As seen above, according to the vehicle suspension apparatus according to the present invention, the left and right wheels of the integral axle suspension system can be independently operated to improve driving stability and ride comfort, the upper arm and the lower arm, and It eliminates the need for support knuckles, reducing manufacturing costs and reducing the load on the bottom of the spring, further improving ride comfort.

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 현가장치를 나타내는 사시도이고, 도 2는 본 발명에 따른 자동차용 현가장치를 나타내는 정면도이며, 도 3은 도 2의 "A-A"선 단면도이다. 1 is a perspective view showing a vehicle suspension according to the present invention, Figure 2 is a front view showing a vehicle suspension according to the present invention, Figure 3 is a cross-sectional view taken along the line "A-A" of FIG.

본 발명은 일체 차축식 현가장치의 좌,우 바퀴를 독립적으로 거동할 수 있도록 하는데 그 주안점이 있는 바, 이를 위하여 본 발명은 타이어 장착부(100)와 에어 스프링 서포트 장착부(110)가 설치되어 있는 리지드 액슬 빔(rigid axle beam)(10,11) 한 쌍이 서로 대응하도록 형성되어 있다.The present invention allows the left and right wheels of the integral axle suspension system to independently operate, and the main point thereof is the present invention. For this purpose, the present invention provides a rigid mounting unit in which a tire mounting unit 100 and an air spring support mounting unit 110 are installed. A pair of axle beams 10 and 11 are formed to correspond to each other.

상기 타이어 장착부(100)에 대하여 반대 방향에 위치한 액슬 빔(10,11)의 힌지부(10a,11a)가 서로 겹쳐진 상태에서 자동차 바디의 중심선보다 벗어나도록 가공되는 바, 액슬 빔(10,11)의 중앙부에 일정한 간격의 오프셋(offset)이 형성되어 액슬 빔(10,11)의 독립적인 회전시 서로 간섭되지 않도록 되어 있다.The hinge parts 10a and 11a of the axle beams 10 and 11 positioned in opposite directions with respect to the tire mounting part 100 are processed to deviate from the center line of the vehicle body in a state where they overlap each other. At regular intervals, offsets are formed at the center of the axles so that they do not interfere with each other during independent rotation of the axle beams 10, 11.

또한, 상기 액슬 빔(10,11)의 힌지부(10a,11a), 즉 회전축의 위치는 자동차 바디의 중심선보다 벗어나게 위치하므로 그 벗어난 간격이 멀수록 타이어의 상하 운동시, 즉 범프 또는 리바운드시 타이어의 트레드(tread) 변화가 최소화된다.In addition, the hinge portions 10a and 11a of the axle beams 10 and 11, i.e., the positions of the rotation shafts are located out of the center line of the vehicle body, so that the farther the gap is, the longer the tires move up and down, i.e., bump or rebound tires. The tread change of is minimized.

다시 말해서, 상기 액슬 빔(10,11)에 장착된 회전축의 회전 반경이 클수록 트레드의 변화가 최소화되는 것이다. In other words, the larger the radius of rotation of the rotating shafts mounted on the axle beams 10, 11, the smaller the change in tread.

그리고, 상기 액슬 빔(10,11)에 장착된 회전축에는 도 3에 도시된 바와 같이, 고정핀(13)을 매개로 통상의 마운팅 부시(12)가 핀 고정되어 차량 거동 시의 충격을 흡수하게 된다.In addition, as shown in FIG. 3, a general mounting bush 12 is pin-fixed to the rotation shafts mounted on the axle beams 10 and 11 to absorb shocks during vehicle behavior. do.

한편, 본 발명은 일체 차축식 현가장치에 독립식 현가장치의 장점을 조합한 구조로서, 어퍼아암(upper arm) 및 로워아암(lower arm), 그리고 서포트 너클(support nuckle)이 필요없게 되므로 이에 링크되어 있는 로워 레이디어스 로드(lower radius rod) 또한 필요없게 되고, 단지 어퍼 레이디어스 로드(upper radius rod)(120)만이 필요하므로 독립식 현가장치(더블 위시본 타입)에 비해 구조가 단순해지고 그만큼 제조 비용이 저렴하게 된다.On the other hand, the present invention is a structure that combines the advantages of the independent suspension to the integral axle suspension, the upper arm (lower arm) and the lower arm (lower arm), and the support knuckle (support nuckle) is no need to link to this It also eliminates the need for a lower radius rod, and only requires an upper radius rod 120, which simplifies and manufactures the structure compared to a stand-alone suspension (double wishbone type). The cost becomes low.

또한, 상기 어퍼아암 및 로워아암 등이 삭제되므로 액슬 빔(10,11)을 고정하기 위하여 마운팅 브라켓(14)을 매개로 차체 프레임(15)의 크로스 멤버에 장착되거 나 사이드 멤버에 장착된다.In addition, since the upper arm and the lower arm are deleted, the upper arm and the lower arm, etc., are mounted to the cross member of the body frame 15 or the side member via the mounting bracket 14 to fix the axle beams 10 and 11.

본 발명의 바람직한 실시예에서는 도 2 및 도 3에 도시된 바와 같이, 차체 프레임(15)의 크로스 멤버에 마운팅 브라켓(14)을 통해 장착됨을 알 수 있다.2 and 3, in the preferred embodiment of the present invention, it can be seen that the mounting member 14 is mounted to the cross member of the vehicle body frame 15.

따라서, 본 발명은 일체 차축식 현가장치에 독립식 현가장치의 장점만을 적용하되, 좌,우 바퀴를 독립적으로 거동할 수 있도록 하여 주행 안정성 및 승차감을 향상시키고, 어퍼아암 및 로워아암, 그리고 서포트 너클이 필요없게 되어 제조 비용을 절감하며 이로 인한 스프링 하단의 하중을 줄여 승차감을 더욱 향상시킬 수 있는 새로운 자동차용 현가장치이다. Therefore, the present invention applies only the advantages of the independent suspension to the integral axle suspension system, so that the left and right wheels can be independently operated to improve driving stability and ride comfort, upper arm and lower arm, and support knuckles. This eliminates the need to reduce manufacturing costs and thus reduces the load on the bottom of the spring, further improving ride comfort.

이상에서는 본 발명의 바람직한 실시예에 대하여 도시하고 또한 설명하였으나, 본 발명은 상기한 실시예에 한정되지 않으며, 특허청구범위에서 청구된 본 발명의 요지를 벗어남이 없이 당해 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형 실시가 가능한 것은 물론이고, 그와 같은 변경은 기재된 청구범위 내에 있게 된다.Although the above has been shown and described with respect to the preferred embodiments of the present invention, the present invention is not limited to the above-described embodiment, in the technical field to which the present invention pertains without departing from the spirit of the invention as claimed in the claims. Various modifications can be made by those skilled in the art, and such changes will fall within the scope of the claims set forth.

도 1은 본 발명에 따른 자동차용 현가장치를 나타내는 사시도,1 is a perspective view showing a suspension for automobiles according to the present invention,

도 2는 본 발명에 따른 자동차용 현가장치를 나타내는 정면도,2 is a front view showing a suspension for automobiles according to the present invention;

도 3은 도 2의 "A-A"선 단면도이다. 3 is a cross-sectional view taken along the line “A-A” of FIG. 2.

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

10,11 : 액슬 빔 11a,11b : 힌지부10,11: axle beam 11a, 11b: hinge portion

12 : 마운팅 부시 13 : 고정핀12: mounting bush 13: fixing pin

14 : 마운팅 브라켓 15 : 차체 프레임 14 mounting bracket 15 body frame

Claims (5)

액슬이 일체로 이루어진 일체 차축 방식의 자동차용 현가장치에 있어서,In the vehicle suspension system of the integral axle system in which the axle is integral, 타이어 장착부(100)와 에어 스프링 서포트 장착부(110)가 설치되어 있는 리지드 액슬 빔(10,11) 한 쌍이 서로 대응하도록 설치되어지되, 상기 타이어 장착부(100)에 대하여 반대 방향에 위치한 액슬 빔(10,11)의 힌지부(10a,11a)가 서로 겹쳐진 상태로 설치된 것을 특징으로 하는 자동차용 현가장치.A pair of rigid axle beams 10 and 11 on which the tire mounting unit 100 and the air spring support mounting unit 110 are installed are installed so as to correspond to each other, and the axle beam 10 located in the opposite direction to the tire mounting unit 100. Hing unit (10a, 11a) of the suspension, characterized in that the vehicle is installed in a state overlapping each other. 제1항에 있어서,The method of claim 1, 상기 액슬 빔(10,11)은 마운팅 브라켓(14)을 매개로 차체 프레임(15)에 장착된 것을 특징으로 하는 자동차용 현가장치.The axle beams (10, 11) is a vehicle suspension, characterized in that mounted to the vehicle body frame (15) via a mounting bracket (14). 제2항에 있어서,The method of claim 2, 상기 차체 프레임(15)은 크로스 멤버 및 사이드 멤버 중, 선택된 어느 하나로 이루어진 것을 특징으로 하는 자동차용 현가장치.The vehicle body frame (15) is a suspension device for a vehicle, characterized in that made of any one selected from cross members and side members. 제1항에 있어서,The method of claim 1, 상기 힌지부(10a,11a)는 서로 겹쳐진 상태에서 자동차 바디의 중심선보다 벗어나도록 액슬 빔(10,11)의 중앙부에 일정한 간격의 오프셋(offset) 가공이 적용된 것을 특징으로 하는 자동차용 현가장치. The hinge unit (10a, 11a) is a suspension device for automobiles, characterized in that the offset processing is applied to the center portion of the axle beam (10,11) so as to deviate from the center line of the vehicle body in the state overlapping each other. 제1항 또는 제4항에 있어서,The method according to claim 1 or 4, 상기 힌지부(10a,11a)는 차량 거동 시의 충격을 흡수할 수 있도록 고정핀(13)을 매개로 통상의 마운팅 부시(12)가 고정된 것을 특징으로 하는 자동차용 현가장치.The hinge portion (10a, 11a) is a suspension device for a vehicle, characterized in that the usual mounting bush 12 is fixed through the fixing pin (13) to absorb the shock during the vehicle behavior.
KR1020070129331A 2007-12-12 2007-12-12 Suspension unit for automobile KR20090062207A (en)

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KR1020070129331A KR20090062207A (en) 2007-12-12 2007-12-12 Suspension unit for automobile

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140069704A (en) 2012-11-29 2014-06-10 삼성테크윈 주식회사 All-direction suspension assmbly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140069704A (en) 2012-11-29 2014-06-10 삼성테크윈 주식회사 All-direction suspension assmbly

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