KR20060118121A - Sub frame for vehicle - Google Patents

Sub frame for vehicle Download PDF

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Publication number
KR20060118121A
KR20060118121A KR1020050040603A KR20050040603A KR20060118121A KR 20060118121 A KR20060118121 A KR 20060118121A KR 1020050040603 A KR1020050040603 A KR 1020050040603A KR 20050040603 A KR20050040603 A KR 20050040603A KR 20060118121 A KR20060118121 A KR 20060118121A
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KR
South Korea
Prior art keywords
vehicle
subframe
suspension
sub frame
present
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Application number
KR1020050040603A
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Korean (ko)
Inventor
김도용
Original Assignee
현대모비스 주식회사
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Publication date
Application filed by 현대모비스 주식회사 filed Critical 현대모비스 주식회사
Priority to KR1020050040603A priority Critical patent/KR20060118121A/en
Publication of KR20060118121A publication Critical patent/KR20060118121A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/11—Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension, e.g. of wheels or engine; sub-frames for mounting engine or suspensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles

Abstract

A sub frame of a vehicle is provided to improve the riding comfort of a driver and elevate the value of the commercial product by applying the foaming filler in the hollow body of the sub frame and reducing the vibration and noise transferred to the body from the suspension. A sub frame of a vehicle is composed of a hollow body(100) comprising plural members fixed at a body by supporting a suspension of the vehicle; and a foaming filler(200) injected in the body as a liquid and then hardened, wherein the foaming filler is made of urethane or polypropylene.

Description

차량의 서브프레임{Sub frame for vehicle}Sub frame for vehicle

도 1은 일반적인 차량의 서브프레임을 도시하는 도,1 shows a subframe of a typical vehicle;

도 2는 종래의 차량의 서브프레임을 도시하는 도 1의 A-A선 단면도,2 is a cross-sectional view taken along line A-A of FIG. 1 showing a subframe of a conventional vehicle;

도 3은 본 발명의 차량의 서브프레임에 대한 단면도.3 is a cross-sectional view of a subframe of the vehicle of the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

100 : 몸체 200 : 발포충진재100: body 200: foam filler

S : 서브프레임S: subframe

본 발명은 차량의 서브프레임에 관한 것으로서 특히, 차량의 현가장치를 지지하여 차체에 고정되는 서브프레임을 개선하여 서브프레임을 이루는 중공 몸체 내부에 발포충진재를 부가하여 서브프레임을 통하여 진동 및 소음이 전달되는 것을 저감시키기 위한 장치로써, 탑승객의 승차감은 물론 차량의 상품성을 향상시킬 수 있는 장치에 관한 것이다.The present invention relates to a subframe of a vehicle, in particular, by supporting the suspension of the vehicle to improve the subframe fixed to the vehicle body by adding a foam filler inside the hollow body constituting the subframe vibration and noise is transmitted through the subframe The present invention relates to a device that can improve the commercial comfort of a vehicle as well as the ride comfort of a passenger.

도 1은 일반적인 차량의 서브프레임을 도시하는 도이다.1 is a diagram illustrating a subframe of a typical vehicle.

일반적으로 차량의 서브프레임은 서스펜션 멤버라고도 불리며, 현가장치인 서스펜션이나 동력전달장치의 부품인 파워트레인을 조립하고 프레임이나 차체에 부착되는 자동차의 부분적인 골격을 이루는 부품이다.Generally, a subframe of a vehicle is also called a suspension member, and is a part of a vehicle that assembles a powertrain, which is a part of a suspension or a power transmission device, which is a suspension device, and forms a partial skeleton of an automobile attached to a frame or a vehicle body.

이러한 차량의 서브프레임(S)은 양측의 사이드멤버를 포함한 다수의 중공 멤버로 이루어지되 진동, 소음이 전달되지 않도록 내철을 포함한 고무재질의 부시를 중간에 끼우고 차체에 부착하는 예가 많으나, 자동차의 강성을 확보하기 위하여 직접 부착되는 경우도 있으며, 새시 부품을 정밀도가 좋게 조립할 수 있으므로 자동차의 운동 성능이 좋아진다는 이점이 있다.The subframe (S) of such a vehicle is made of a plurality of hollow members including side members on both sides, but there are many examples of attaching a bush of a rubber material including inner steel in the middle and attaching it to the vehicle body so that vibration and noise are not transmitted. In some cases, it is directly attached to secure the rigidity, and the chassis parts can be assembled with high precision, thereby improving the motor performance.

도 2는 종래의 차량의 서브프레임을 도시하는 도 1의 A-A선 단면도이다.2 is a cross-sectional view taken along the line A-A of FIG. 1 showing a subframe of a conventional vehicle.

종래의 차량의 서브프레임은 도 2에 도시된 바와 같이, 차량의 현가장치를 지지하여 차체에 고정되는 다수의 멤버로 이루어진 중공의 몸체(10)로 이루어지되, 그 재질이 스틸이나 알루미늄과 같은 금속으로만 제작되어 높은 강성을 가지고 있다.As shown in FIG. 2, a subframe of a conventional vehicle is formed of a hollow body 10 having a plurality of members fixed to a vehicle body by supporting a suspension of the vehicle, the material being made of metal such as steel or aluminum. Made only with high rigidity.

그러나, 종래의 차량의 서브프레임은 단순히 금속재질의 중공 몸체로만 이루어져 있어, 자체적인 진동 흡수나 소음 감소 효과가 전혀 없이 그대로 전달되기 때문에 탑승객의 승차감이 크게 저감되는 것은 물론 차량의 상품성이 저하된다는 기술상의 문제점이 있었다.However, since the conventional subframe of the vehicle is simply made of a hollow body made of metal, and is transmitted as it is without any vibration absorption or noise reduction effect itself, the ride comfort of the passengers is greatly reduced and the merchandise of the vehicle is deteriorated. There was a problem.

본 발명은 상기의 문제점을 해소하기 위한 것으로, 서브프레임의 중공 몸체 내부에 발포충진재를 부가하여 현가장치로부터 차체로 전달되는 진동 및 소음을 저감시킬 수 있어 탑승객의 승차감은 물론 차량의 상품성을 향상시킬 수 있도록 하는 차량의 서브프레임을 제공하고자 한다.The present invention is to solve the above problems, by adding a foam filler inside the hollow body of the subframe can reduce the vibration and noise transmitted from the suspension to the vehicle body to improve the ride comfort of the passengers as well as the vehicle's merchandise. It is intended to provide a subframe of a vehicle that allows.

이러한 본 발명은 차량의 현가장치를 지지하여 차체에 고정되는 다수의 멤버로 이루어진 중공의 몸체와; 상기 몸체의 내부에 액상으로 주입되어 고형화되는 발포충진재로 구성함으로써 달성된다.This invention comprises a hollow body consisting of a plurality of members fixed to the vehicle body to support the suspension of the vehicle; It is achieved by forming a foam filler which is injected into the liquid phase and solidified inside the body.

본 발명의 실시예를 첨부 도면을 참조하여 상세히 설명하면 다음과 같다.An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 3은 본 발명의 차량의 서브프레임에 대한 단면도이다.3 is a cross-sectional view of a subframe of a vehicle of the present invention.

본 발명의 차량의 서브프레임은 도 3에 도시된 바와 같이, 차량의 현가장치를 지지하여 차체에 고정되는 다수의 멤버로 이루어진 중공의 몸체(100)와; 상기 몸체(100)의 내부에 액상으로 주입되어 고형화되는 발포충진재(200)로 구성되는 것을 그 기술상의 기본 특징으로 한다.Subframe of the vehicle of the present invention, as shown in Figure 3, the hollow body 100 consisting of a plurality of members to support the suspension of the vehicle fixed to the vehicle body; It is a basic feature of the technology that consists of a foam filler 200 is solidified by being injected into the liquid phase inside the body 100.

이하, 도 3을 참조하여 본 발명의 작용을 설명하면 다음과 같다.Hereinafter, the operation of the present invention will be described with reference to FIG. 3.

상기와 같이 구성된 본 발명의 차량의 서브프레임은 도 3에 도시된 바와 같이, 스틸이나 알루미늄과 같이 금속재질로 이루어져 기존에 비어있던 몸체(100) 내부에 발포충진재(200)가 추가적으로 채워진 것으로, 이를 통하여 추가된 발포충진 재(200)가 현가장치로부터 차체로 전달되는 진동 및 소음을 저감시키게 되는 것이다.Subframe of the vehicle of the present invention configured as described above, as shown in Figure 3, made of a metal material, such as steel or aluminum, the foam filler 200 is additionally filled inside the previously empty body 100, this The added foam filler 200 is to reduce the vibration and noise transmitted from the suspension to the vehicle body.

여기에서, 상기 발포충진재(200)는 최초 액체 상태로 상기 몸체(100) 내부로 주입된 후, 상기 몸체(100) 내부에서 발포 성형되면서 몸체(100) 내부에 고체 상태로 채워진 것으로, 상기 발포충진재(200)는 액체 상태로부터 고체 상태로 발포 성형되며 진동 절연 효과 및 소음에 대한 흡음 효율이 높은 다양한 재질을 적용할 수 있으며, 본 발명에 있어서 상기 발포충진재(200)는 우레탄 또는 폴리프로필렌 재질로 이루어지는 것이 바람직하다.Here, the foam filler 200 is initially injected into the body 100 in a liquid state, and then foamed in the body 100 while being filled in a solid state inside the body 100, the foam filler The foam 200 may be foamed from a liquid state to a solid state, and various materials having high vibration insulation and high sound absorption efficiency may be applied. In the present invention, the foam filler 200 may be made of urethane or polypropylene. It is preferable.

따라서, 본 발명의 차량의 서브프레임은 현가장치와 차체 사이에 마련된 서브프레임의 중공 몸체(100) 내부에 우레탄 또는 폴리프로필렌 재질의 발포충진재(200)를 액체 상태로 주입한 후 고체 상태로 발포 성형시켜 상기 몸체(100) 내부에 채워지도록 함으로써, 현가장치로부터 차체로 전달되는 진동이나 소음을 상기 발포충진재(200)가 효과적으로 저감시킬 수 있어 탑승객의 승차감은 물론 차량의 상품성을 현저히 증대시킬 수 있다는 이점이 있는 발명인 것이다.Therefore, the subframe of the vehicle of the present invention is foamed in a solid state after injecting a foam filler 200 made of urethane or polypropylene in a liquid state into the hollow body 100 of the subframe provided between the suspension and the vehicle body By filling the inside of the body 100, the foam filler 200 can effectively reduce the vibration or noise transmitted from the suspension device to the vehicle body can significantly increase the ride comfort of the passenger as well as the merchandise of the vehicle significantly This is the invention.

상기 실시예는 본 발명의 기술적 사상을 구체적으로 설명하기 위한 일례로서, 본 발명의 범위는 상기의 도면이나 실시예에 한정되지 않는다.The above embodiment is an example for explaining the technical idea of the present invention in detail, and the scope of the present invention is not limited to the above drawings and embodiments.

이상과 같은 본 발명은 서브프레임의 중공 몸체 내부에 발포충진재를 부가하여 현가장치로부터 차체로 전달되는 진동 및 소음을 저감시킬 수 있어 탑승객의 승 차감은 물론 차량의 상품성을 향상시킬 수 있는 발명인 것이다.The present invention as described above is an invention that can add vibration filler to the interior of the hollow body of the sub-frame to reduce the vibration and noise transmitted from the suspension device to the vehicle body as well as improve the passenger comfort and the vehicle's merchandise.

Claims (2)

차량의 현가장치를 지지하여 차체에 고정되는 다수의 멤버로 이루어진 중공의 몸체와;A hollow body comprising a plurality of members fixed to the vehicle body by supporting the suspension of the vehicle; 상기 몸체의 내부에 액상으로 주입되어 고형화되는 발포충진재로 구성되는 것을 특징으로 하는 차량의 서브프레임.Subframe of the vehicle, characterized in that consisting of a foam filler is solidified by being injected into the liquid inside the body. 제 1항에 있어서, 상기 발포충진재는 우레탄 또는 폴리프로필렌 재질로 이루어지는 것을 특징으로 하는 차량의 서브프레임.The vehicle subframe of claim 1, wherein the foam filler is made of urethane or polypropylene.
KR1020050040603A 2005-05-16 2005-05-16 Sub frame for vehicle KR20060118121A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202100032192A1 (en) 2021-12-22 2023-06-22 Marelli Suspension Systems Italy S P A Method of manufacturing a structural component of the chassis of a motor vehicle, in particular a suspension cross member, with filler inserts to improve the comfort of the vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202100032192A1 (en) 2021-12-22 2023-06-22 Marelli Suspension Systems Italy S P A Method of manufacturing a structural component of the chassis of a motor vehicle, in particular a suspension cross member, with filler inserts to improve the comfort of the vehicle

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