KR20050011837A - a joint structure of dash outer cross member and front side inner member not to transform a cab in vehicle - Google Patents

a joint structure of dash outer cross member and front side inner member not to transform a cab in vehicle Download PDF

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Publication number
KR20050011837A
KR20050011837A KR1020030050874A KR20030050874A KR20050011837A KR 20050011837 A KR20050011837 A KR 20050011837A KR 1020030050874 A KR1020030050874 A KR 1020030050874A KR 20030050874 A KR20030050874 A KR 20030050874A KR 20050011837 A KR20050011837 A KR 20050011837A
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KR
South Korea
Prior art keywords
dash
front side
cross member
outer cross
side inner
Prior art date
Application number
KR1020030050874A
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Korean (ko)
Inventor
이기수
Original Assignee
현대자동차주식회사
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Priority to KR1020030050874A priority Critical patent/KR20050011837A/en
Publication of KR20050011837A publication Critical patent/KR20050011837A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/14—Dashboards as superstructure sub-units
    • B62D25/145—Dashboards as superstructure sub-units having a crossbeam incorporated therein
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/082—Engine compartments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D27/00—Connections between superstructure or understructure sub-units
    • B62D27/02—Connections between superstructure or understructure sub-units rigid
    • B62D27/023—Assembly of structural joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2410/00—Constructional features of vehicle sub-units
    • B60Y2410/12—Production or manufacturing of vehicle parts
    • B60Y2410/124—Welded parts

Abstract

PURPOSE: A structure for combining a dash outer cross member and a front side inner member to reduce deformation of a passenger' room of a vehicle is provided to secure a shock-absorbing space at the depth of a section of the dash outer cross member by the front side inner member covering the dash outer cross member. CONSTITUTION: A structure for combining a dash outer cross member(10) and a front side inner member(20) to reduce deformation of a passenger room and a dash panel(1) of a vehicle is composed of the dash outer cross member having a bottom flange(11) welded on a front side member outer panel(4) of the dash panel forming a vehicle engine room by left and right flange units(12); and the front side inner member bent to cover the outer surface of the dash outer cross member and welded on the front side member outer panel by a bent flange unit(22). The bent flange unit of the front side inner member covers and welds the outer surface of the dash outer cross member. A side flange unit(21) is welded on the front side member outer panel to prevent the dash outer cross member from rolling back in a collision.

Description

차량의 승객실 변형감소를 위한 대쉬아우터크로스멤버와 프론트사이드인너멤버의 체결구조{a joint structure of dash outer cross member and front side inner member not to transform a cab in vehicle}A joint structure of dash outer cross member and front side inner member not to transform a cab in vehicle}

본 발명은 프론트싸이드멤버와 대쉬아우터크로스멤버의 체결방법에 관한 것으로 특히, 프론트사이드인너멤버의 절곡플렌지부로 대쉬아우터크로스멤버를 둘러싸며 용접하여 차량의 충돌시 승객실까지 변형되어 밀리는 현상을 감소시키기 위한 차량의 승객실 변형감소를 위한 대쉬아우터크로스멤버와 프론트사이드인너멤버의 체결구조이다.The present invention relates to a fastening method of the front side member and the dash outer cross member, and in particular, the bending flange portion of the front side inner member surrounds the dash outer cross member and welds it to reduce the phenomenon of being deformed and pushed to the passenger compartment during the collision of the vehicle. It is a fastening structure of the dash outer cross member and the front side inner member for reducing the deformation of the passenger compartment of the car.

일반적으로 대쉬크로스멤버란 차량이 운행중 정면충돌 및 측면충돌시 승객실의 변형을 막아주기 위해서 위치 한다.In general, the dash cross member is positioned to prevent deformation of the passenger compartment during frontal and side collisions while the vehicle is in operation.

즉, 도시된 도 1과 도 2에서 처럼, 차체의 주 골격부재인 프론트사이드멤버 사이의 결합강성를 높여 차체 골격의 횡방향의 강성을 증대시키기 위한 것이다.That is, as shown in Figures 1 and 2, to increase the coupling rigidity between the front side member, the main skeleton member of the vehicle body to increase the stiffness in the transverse direction of the vehicle body skeleton.

그런데 이러한 대쉬아우터크로스멤버는 도시된 형태처럼 "ㄷ"자형의 단면을 가지고, 그 좌우 끝단부위에 용접을 위한 플렌지부가 형성되어 있다.By the way, such a dash outer cross member has a cross-section of the "c" shape as shown, and the flange portion for welding is formed on the left and right ends thereof.

따라서 그 중 바닥플렌지는 대쉬판넬에 용접되고, 좌우플렌지부는 프론트사이드아우터멤버에 용접결합된다.Therefore, the bottom flange is welded to the dash panel, and the left and right flange parts are welded to the front side outer member.

이러한 종래의 결합은 문제점이 발생되는데, 그 형태는 다음과 같다.This conventional combination causes a problem, the form of which is as follows.

첫째, 정면이나 측면 충돌시 대쉬판넬의 변형을 일의키는 파워트레인과의 접촉과 프론트사이드멤버가 밀리는 현상인데 종래의 대쉬아우터크로스멤버로서는 엔진과 트랜스밋션의 침입을 흡수하는데는 효과가 있지만, 승객실 변형에 가장 큰 영향을 미치는 프론트사이드멤버에 의한 변형을 억제할 수 없었다.First, when the front or side collision, the front panel member is pushed and the contact with the power train that causes the deformation of the dash panel. Although the conventional dash outer cross member is effective in absorbing the intrusion of the engine and the transmission, Deformation by frontside members, which had the greatest impact on passenger compartment deformation, could not be suppressed.

둘째, 대쉬아우터크로스멤버의 좌우측 플렌지가 프론트사이드인너멤버의 외측면에 용접되어 있기 때문에 좌우의 프론트사이드멤버간 결합력이 약하다.Second, since the left and right flanges of the dash outer cross member are welded to the outer surface of the front side inner member, the coupling force between the left and right front side members is weak.

이는 차체 골격의 횡강성이 떨어지는 결과를 가져온다.This results in inferior lateral rigidity of the body frame.

상기한 문제점을 해결한 본 발명은 프론트사이드인너멤버의 절곡플렌지부로 대쉬아우터크로스멤버를 둘러싸며 용접하여 차량의 충돌시 승객실까지 변형되어 밀리는 현상을 감소시키기 위한 차량의 승객실 변형감소를 위한 대쉬아우터크로스멤버와 프론트사이드인너멤버의 체결구조를 제공하고자 한다.The present invention which solved the above problems is a bending flange portion of the front side inner member to surround the dash outer cross member welded to the passenger compartment when the collision of the vehicle to reduce the phenomenon of the passenger compartment deformation of the vehicle to reduce the push To provide a fastening structure between the outer cross member and the front side inner member.

또한 절곡된 형상으로 프론트사이드멤버와 대쉬아우터크로스멤버들에 용접되는 프론트사이드인너멤버를 제공하고자 한다.In addition, to provide a front side inner member that is welded to the front side member and the dash outer cross members in a bent shape.

도 1 종래의 대쉬판넬(DASH PANEL)에 대쉬아우터크로스멤버과 프론트사이드인너멤버가 체결되는 과정을 도시한 분해사시도,1 is an exploded perspective view illustrating a process in which a dash outer cross member and a front side inner member are fastened to a conventional dash panel;

도 2는 종래 대쉬판넬에 대쉬아우터크로스멤버과 프론트사이드인너멤버가 체결된 상태의 모습을 도시한 체결상태사시도,2 is a perspective view illustrating a state where a dash outer cross member and a front side inner member are fastened to a conventional dash panel;

도 3은 본 발명의 대쉬판넬에 대쉬아우터크로스멤버과 대쉬인너크로스멤버가 체결되는 과정을 도시한 분해사시도,Figure 3 is an exploded perspective view showing a process of fastening the dash outer cross member and the dash inner cross member to the dash panel of the present invention,

도 4는 본 발명의 대쉬판넬에 대쉬아우터크로스멤버과 프론트사이드인너멤버가 체결된 상태의 모습을 도시한 체결상태사시도,4 is a perspective view illustrating a state in which a dash outer cross member and a front side inner member are fastened to a dash panel of the present invention;

도 5는 대쉬판넬에 대쉬아우터크로스멤버과 프론트사이드인너멤버가 체결된 상태의 모습을 단면한 측단면도이다.5 is a cross-sectional side view showing a state in which a dash outer cross member and a front side inner member are fastened to a dash panel.

< 도면의 주요부호에 대한 설명><Description of Major Symbols in Drawing>

1; 대쉬판넬 10; 대쉬아우터크로스멤버One; Dash panel 10; Dash Outer Cross Member

11; 바닥플렌지 20; 프론트사이드인너멤버11; Bottom flange 20; Front Side Inner Member

21; 플렌지부 22; 절곡플렌지부21; Flange portion 22; Bending Flange

본 발명은 차량의 대쉬판넬 및 승객실의 변형을 막기위해 보강된 대쉬아우터크로스멤버와 프론트사이드인너멤버의 체결구조에 관한 것으로 다음에서 상세히 설명한다.The present invention relates to a fastening structure of the dash outer cross member and the front side inner member reinforced to prevent deformation of the dash panel and the passenger compartment of the vehicle.

우선 도시된 도 3에서 처럼, 차량의 엔진실을 이루는 대쉬판넬(1)에 그 바닥플렌지(11)가 프론트사이드멤버아우터판넬(4)에 좌우플렌지(12)를 이용하여 용접되는 "ㄷ"자형의 대쉬아우터크로스멤버(10)가 있다.First, as shown in FIG. 3, the bottom flange 11 of the dash panel 1 forming the engine compartment of the vehicle is welded using the left and right flanges 12 to the front side member outer panel 4. There is a dash outer cross member (10).

또한 그와 대응하는 구성으로 절곡된 형상이며 "ㄷ"자 형상의 대쉬아우터크로스멤버(10)의 외곽면을 덮고, 절곡 플렌지부(22)를 통해 프론트사이드멤버아우터판넬(4)에 프론트사이드인너멤버(20)가 서로 용접 결합된다.In addition, the shape is bent in the corresponding configuration and covers the outer surface of the "C" shaped dash outer cross member 10, the front side inner to the front side member outer panel (4) through the bending flange portion 22 The members 20 are welded together.

즉, 프론트사이드인너멤버(20)의 절곡플렌지부(22)에 대쉬아우터크로스멤버(10)의 외곽면을 덮어 용접하고, 측방의 플렌지부(21)는 프론트사이드멤버아우터판넬(4)에 용접되어 충돌시 대쉬아우터크로스멤버(10)의 밀림을 방지시키는 것이다.That is, the outer surface of the dash outer cross member 10 is covered and welded to the bent flange portion 22 of the front side inner member 20, and the side flange portion 21 is welded to the front side member outer panel 4. When the collision is to prevent the push of the dash outer cross member (10).

다시말해서 "ㄷ"자형의 대쉬아우터크로스멤버가 전면의 대쉬판넬과 측면의 프론트사이드멤버아우터판넬에 용접 결합되면, 그 위를 덮은 상태로 프론트사이드인너멤버(20)가 용접된다.In other words, when the "c" shaped dash outer cross member is welded to the front dash panel of the front side and the front side member outer panel of the side, the front side inner member 20 is welded to cover it.

따라서 충돌이 발생된다면 프론트사이드인너멤버(20)는 대쉬아우터크로스멤버의 뒷면을 지지하고 있는 상태이기에 대쉬아우터크로스멤버의 단면의 두께(H) 만큼 충돌을 흡수하는 공간이 확보되는 것이다.Therefore, if a collision occurs, the front side inner member 20 supports the back of the dash outer cross member, so that a space for absorbing the collision as much as the thickness H of the cross section of the dash outer cross member is secured.

본 발명은 대쉬아우터크로스멤버를 그 구조적으로 감싼 프론트사이드인너멤버를 통해 대쉬아우터크로스멤버의 단면 깊이 만큼의 충돌 흡수공간이 확보되어 차량의 충돌시 승객실의 변형을 최소화 시키는 유용한 발명이다.The present invention is a useful invention for minimizing the deformation of the passenger compartment when the collision of the vehicle is secured by securing the collision absorbing space as much as the cross-sectional depth of the dash outer cross member through the front side inner member wrapped structurally the dash outer cross member.

또한 대쉬아우터크로스멤버와 프론트사이드인너멤버 및 좌.우 프론트사이드멤버 간의 용접결합면적과 결합강성이 증대되어 골격 횡강성이 개선된다.In addition, the weld joint area and bonding stiffness between the dash outer cross member, the front side inner member, and the left and right front side members are increased, thereby improving the lateral rigidity of the skeleton.

Claims (1)

차량의 대쉬판넬 및 승객실의 변형을 막기위해 보강된 대쉬아우터크로스멤버와 대쉬인너크로스멤버의 체결구조에 있어서,In the fastening structure of the dash outer cross member and the dash inner cross member which are reinforced to prevent deformation of the dash panel and the passenger compartment of the vehicle, 차량의 엔진실을 이루는 대쉬판넬(1)에 그 바닥플렌지(11)가 프론트사이드멤버아우터판넬(4)에 좌우플렌지부(12)를 이용하여 용접되는 "ㄷ"자형의 대쉬아우터크로스멤버(10)와;The bottom flange 11 of the dash panel 1 forming the engine compartment of the vehicle is welded to the front side member outer panel 4 by using the left and right flange portions 12 to form a “D” shaped dash outer cross member 10. )Wow; 절곡된 형상이며 "ㄷ"자 형상의 대쉬아우터크로스멤버(10)의 외곽면을 덮고 절곡 플렌지부(22)를 통해 프론트사이드멤버아우터판넬(4)에 용접되는 프론트사이드인너멤버(20)가;A front side inner member 20 which is bent in shape and covers the outer surface of the dash outer cross member 10 having a “c” shape and is welded to the front side member outer panel 4 through the bent flange portion 22; 서로 프론트사이드인너멤버(20)의 절곡플렌지부(22)로 대쉬아우터크로스멤버(10)의 외곽면을 덮어용접하고, 측방의 플렌지부(21)는 프론트사이드멤버아우터판넬(4)에 용접되어 충돌시 대쉬아우터크로스멤버(10)의 밀림을 방지하는 것에 특징이 있는 차량의 승객실 변형감소를 위한 대쉬아우터크로스멤버와 대쉬인너크로스멤버의 체결구조The outer surface of the dash outer cross member 10 is welded to each other with the bent flange portion 22 of the front side inner member 20, and the side flange portions 21 are welded to the front side member outer panel 4. The fastening structure of the dash outer cross member and the dash inner cross member for reducing the deformation of the passenger compartment of the vehicle, which is characterized by preventing the dash of the dash outer cross member 10 during a collision.
KR1020030050874A 2003-07-24 2003-07-24 a joint structure of dash outer cross member and front side inner member not to transform a cab in vehicle KR20050011837A (en)

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KR1020030050874A KR20050011837A (en) 2003-07-24 2003-07-24 a joint structure of dash outer cross member and front side inner member not to transform a cab in vehicle

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110857122A (en) * 2018-08-23 2020-03-03 丰田自动车株式会社 Vehicle front structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110857122A (en) * 2018-08-23 2020-03-03 丰田自动车株式会社 Vehicle front structure
CN110857122B (en) * 2018-08-23 2022-04-29 丰田自动车株式会社 Vehicle front structure

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