KR100821010B1 - Door impact beam for vehicle - Google Patents

Door impact beam for vehicle Download PDF

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Publication number
KR100821010B1
KR100821010B1 KR1020060127817A KR20060127817A KR100821010B1 KR 100821010 B1 KR100821010 B1 KR 100821010B1 KR 1020060127817 A KR1020060127817 A KR 1020060127817A KR 20060127817 A KR20060127817 A KR 20060127817A KR 100821010 B1 KR100821010 B1 KR 100821010B1
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KR
South Korea
Prior art keywords
lower member
impact beam
vehicle
upper member
bent
Prior art date
Application number
KR1020060127817A
Other languages
Korean (ko)
Inventor
김기창
Original Assignee
현대자동차주식회사
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Priority to KR1020060127817A priority Critical patent/KR100821010B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J5/00—Doors
    • B60J5/04—Doors arranged at the vehicle sides
    • B60J5/042—Reinforcement elements
    • B60J5/0422—Elongated type elements, e.g. beams, cables, belts or wires
    • B60J5/0438—Elongated type elements, e.g. beams, cables, belts or wires characterised by the type of elongated elements
    • B60J5/0443—Beams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J5/00—Doors
    • B60J5/04—Doors arranged at the vehicle sides
    • B60J5/0468—Fixation or mounting means specific for door components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R2021/0002—Type of accident
    • B60R2021/0006—Lateral collision
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R2021/003—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks characterised by occupant or pedestian
    • B60R2021/0039—Body parts of the occupant or pedestrian affected by the accident
    • 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
    • B60Y2200/11—Passenger cars; Automobiles

Abstract

A door impact beam for a vehicle is provided to increase energy absorbing rate and to prevent an inner panel from being pushed inwards in a collision by having a lower member and an upper member that are provided with a bent-up unit. A door impact beam for a vehicle comprises an upper member(60) and a lower member. A bent-up unit(54) is formed in either the upper member or the lower member. A right side(52) and a left side(51) of the lower member get separated widely as going upwards. A bottom side(53) is integrally formed between the bottom of the right side and the bottom of the left side. The bent-up unit of the lower member is protruded upwards from the bottom and is bent several times. The upper member is round. The upper member and the lower member are partially welded to each other via CO2 welding.

Description

차량용 도어 임팩트 빔 {Door impact beam for vehicle}Door impact beam for vehicle {Door impact beam for vehicle}

도 1은 일반적인 차량의 측면이 도시한 도,1 is a side view of a typical vehicle,

도 2는 도 1에 도시된 도어의 내부가 도시된 사시도,Figure 2 is a perspective view of the inside of the door shown in Figure 1,

도 3은 도 1에 도시된 도어의 횡단면도,3 is a cross-sectional view of the door shown in FIG.

도 4는 도 1에 도시된 도어의 종단면도,4 is a longitudinal sectional view of the door shown in FIG. 1;

도 5는 본 발명에 따른 차량용 도어 임팩트 빔 일실시예가 차량의 도어에 구비된 확대 단면도이다.5 is an enlarged cross-sectional view of a door impact beam for a vehicle according to an embodiment of the present disclosure provided in a door of a vehicle.

<도면의 주요 부분에 관한 부호의 설명><Explanation of symbols on main parts of the drawings>

11: 아웃터 판넬 12: 인너 판넬11: Outer panel 12: Inner panel

50: 로우어 부재 51: 좌측부50: lower member 51: left part

52: 우측부 53: 하측부52: right part 53: lower part

54: 다단 절곡부 55: 좌측 절곡부54: multi-stage bent part 55: left bent part

56: 우측 절곡부 57: 상측 절곡부56: right bend 57: upper bend

60: 어퍼 부재 61: 어퍼 부재의 좌측단60: upper member 61: left end of upper member

62: 어퍼 부재의 우측단 63: 어퍼 부재의 중앙62: right end of upper member 63: center of upper member

본 발명은 차량용 도어 임펙트 빔에 관한 것으로서, 특히 상하 분리형으로 이루어지고 맞물림 변형에 의한 충격 에너지 흡수를 극대화한 차량용 도어 임펙트 빔에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door impact beam for a vehicle, and more particularly, to a door impact beam for a vehicle, which is made of a vertical separation type and which maximizes impact energy absorption due to engagement deformation.

일반적으로 차량의 도어는 운전자 및 승객이 실내로 들어가면서 개폐하는 수단 외에도 측면 충돌 시 인체 상해치를 최소화하기 위한 충돌 하중 흡수구간의 역할을 한다.In general, the door of the vehicle serves as a collision load absorbing section to minimize the human injury in the event of a side collision in addition to the means for opening and closing the driver and passengers into the room.

도 1은 일반적인 차량의 측면이 도시한 도이고, 도 3은 도 1에 도시된 도어의 내부가 도시된 사시도이며, 도 3은 도 1에 도시된 도어의 횡단면도이며, 도 4는 도 1에 도시된 도어의 종단면도이다.1 is a side view of a typical vehicle, FIG. 3 is a perspective view showing the inside of the door shown in FIG. 1, FIG. 3 is a cross-sectional view of the door shown in FIG. 1, and FIG. 4 is shown in FIG. 1. Section view of a closed door.

도 1 내지 도 4에 도시된 차량의 도어(1)(2)는 외측의 아웃터 판넬(11)과 내측의 인어 판넬(12)에 의해 폐단면을 이룬다. The doors 1 and 2 of the vehicle shown in FIGS. 1 to 4 form a closed cross section by the outer outer panel 11 and the inner mermaid panel 12.

한편, 도어(1)(2)에는 측면 충돌 시 운전자 및 승객의 머리, 갈비뼈, 골반부 상해치 저감을 위하여 도어 임펙트 빔(13)이 장착되는 바, 임팩트 빔(13) 전후에는 인어 판넬(12)에 고정하기 위해 전방과 후방에 마운팅 브라켓트(14)(15)와 지지 레인포스(16)(17)가 다수 결합되어 진다.On the other hand, the door impact beam 13 is mounted on the doors 1 and 2 to reduce the head, ribs, and pelvic injury of the driver and passenger during side impact, and the mermaid panel 12 before and after the impact beam 13 A plurality of mounting brackets 14, 15 and support reinforcement 16, 17 are coupled to the front and rear to secure them to the back.

도어 임펙트 빔(13)은 압출 성형된 단순한 중공 빔으로 이루어진다.The door impact beam 13 consists of a simple hollow beam extruded.

그러나, 종래 기술에 따른 차량용 도어 임팩트 빔은, 단순 중공 빔으로 이루어져, 측면 충돌 시 초기 변형이 미비한 상태에서 실내로 밀려 인어 판넬(12)에 취 부된 마운팅 브라켓트(14)(15)와 함께 운전자의 골반부를 직접 가격하여 상해치가 과다해지는 문제점이 있다.However, the door impact beam for a vehicle according to the prior art is composed of a simple hollow beam, which is pushed into the room in a state where the initial deformation is insufficient in the event of a side collision, and is mounted with the mounting brackets 14 and 15 mounted on the mermaid panel 12. There is a problem that excessive injury to the pelvis directly.

본 발명은 상기한 종래 기술의 문제점을 해결하기 위하여 안출된 것으로서, 차량의 측면 충돌시 에너지 흡수율을 최대화하여 운전자 등의 골반부의 상해치를 최소화한 차량용 도어 임팩트 빔을 제공하는데 그 목적이 있다.The present invention has been made to solve the above problems of the prior art, the object of the present invention is to provide a door impact beam for a vehicle to minimize the injury of the pelvis portion of the driver by maximizing the energy absorption rate during the side impact of the vehicle.

상기한 과제를 해결하기 위한 본 발명에 따른 차량용 도어 임팩트 빔은 어퍼 부재와 로우어 부재가 결합되어 이루어지고, 상기 어퍼 부재와 로우어 부재 중 적어도 하나에는 절곡부가 형성된다.The vehicle door impact beam according to the present invention for solving the above problems is made by combining the upper member and the lower member, the bent portion is formed in at least one of the upper member and the lower member.

상기 로우어 부재는 좌측부와 우측부가 상측으로 갈수록 옆으로 벌어지는 방향으로 경사지게 형성되고, 좌측부의 하단과 우측부의 하단 사이에 하측부가 일체로 형성된다.The lower member is formed to be inclined in a direction that opens laterally toward the upper side of the left side and the right side, and the lower side is integrally formed between the lower end of the left side and the lower end of the right side.

상기 로우어 부재는 상기 절곡부가 상기 하측부에 상측으로 돌출됨과 아울러 다단으로 절곡 형성된다.The lower member may be formed in multiple stages while the bent portion protrudes upward from the lower portion.

상기 어퍼 부재는 라운드지게 형성된다. The upper member is formed round.

상기 로우어 부재와 어퍼 부재는 CO2 용접에 의해 부분 결합된다.The lower member and the upper member are partially joined by CO 2 welding.

이하, 본 발명의 실시 예를 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 5는 본 발명에 따른 차량용 도어 임팩트 빔 일실시예가 차량의 도어에 구비된 확대 단면도이다.5 is an enlarged cross-sectional view of a door impact beam for a vehicle according to an embodiment of the present disclosure provided in a door of a vehicle.

본 발명에 따른 차량용 도어 임팩트 빔은 도 5에 도시된 바와 같이, 아웃터 판넬(11)과 인어 판넬(미도시)에 의해 폐단면을 이루는 도어에 설치되되, 로워 부재(52)와 어퍼 부재(60)가 분리형으로 구성된다.As shown in FIG. 5, the door impact beam for a vehicle according to the present invention is installed in a door which forms a closed cross section by an outer panel 11 and a mermaid panel (not shown), and includes a lower member 52 and an upper member 60. ) Consists of a separate type.

로우어 부재(50)와 어퍼 부재(60) 중 적어도 하나는 변형이 용이하게 다단 으로 절곡 성형된다.At least one of the lower member 50 and the upper member 60 is easily bent in multiple stages to be deformed.

로우어 부재(50)는 좌측부(51)와 우측부(52)가 상측으로 갈수록 옆으로 벌어지는 방향으로 경사지게 형성된다.The lower member 50 is formed to be inclined in the direction in which the left portion 51 and the right portion 52 open laterally toward the upper side.

로우어 부재(50)는 좌측부(51)의 하단과 우측부(52)의 하단 사이에 하측부(53)가 일체로 형성된다.The lower member 50 is integrally formed with the lower part 53 between the lower end of the left part 51 and the lower end of the right part 52.

즉, 로우어 부재(50)는 전체적인 단면 형상이 ‘∪’자 형으로 형성되되, 좌,우 양측부(51)(52)가 벌어지게 형성된다.That is, the lower member 50 has an overall cross-sectional shape having a '∪' shape, and the left and right sides 51 and 52 are formed to be widened.

아울러, 로우어 부재(50)는 하측부(53)에 상측으로 돌출되게 다단 절곡된 다단 절곡부(54)가 형성된다.In addition, the lower member 50 is formed with a multi-stage bent portion 54 bent in a multi-stage to protrude upward on the lower portion (53).

여기서, 다단 절곡부(54)는 측면 충돌시 초기 에너지 흡수율을 극대화하는 것으로서, 하측부(53)의 좌,우에서 각각 절곡된 좌측 절곡부(55)와 우측 절곡부(56)와, 좌측 절곡부(55)와 우측 절곡부(56)의 상단을 잇는 상측 절곡부(57)로 이루어진다.Here, the multi-stage bent portion 54 is to maximize the initial energy absorption rate in the side impact, the left bent portion 55 and the right bent portion 56 and the left bend, respectively bent at the left and right of the lower side 53 It consists of an upper bent portion 57 connecting the upper portion of the portion 55 and the right bent portion 56.

좌측 절곡부(55)와 우측 절곡부(56)는 하측으로 갈수록 옆으로 벌어지는 방향으로 경사지게 형성된다.The left bent portion 55 and the right bent portion 56 are formed to be inclined in a direction that opens laterally toward the lower side.

즉, 다단 절곡부(54)는 전체적으로 단면 형상이 ‘∩’자 형으로 형성되되, 좌측 절곡부(55)와 우측 절곡부(56)가 벌어지게 형성된다.That is, the multi-stage bent portion 54 is formed in a cross-sectional shape of the '∩' shape as a whole, the left bent portion 55 and the right bent portion 56 is formed to spread.

다단 절곡부(54)는 그 전체 높이가 좌,우 양측부(51)(52) 보다 낮게 돌출된다.The multi-stage bent portion 54 protrudes lower than the total height of the left and right sides 51 and 52.

한편, 로우어 부재(50)는 하측부(53) 중에서 좌측부(51)와 좌측 절곡부(55)의 사이에 좌측 하부 절곡부(57)가 형성됨과 아울러 우측부(52)와 우측 절곡부(56)의 사이에 우측 하부 절곡부(58)가 형성된다.Meanwhile, the lower member 50 has a lower left bent part 57 formed between the left part 51 and the left bent part 55 among the lower parts 53, and the right part 52 and the right bent part ( The right lower bent portion 58 is formed between the 56.

즉, 로우어 부재(50)는 총 8회의 절곡 구조를 갖는다.That is, the lower member 50 has a total of eight bending structures.

한편, 어퍼 부재(60)는 라운드지게 형성된다. On the other hand, the upper member 60 is formed round.

어퍼 부재(60)는 좌측단(61)이 로우어 부재(50)의 좌측부 우측에 위치되고, 우측단(62)가 로우어 부재(50)의 우측부(52) 좌측에 위치되어, 로우어 부재(50)의 상면 내부로 삽입된 형태로 배치된다.In the upper member 60, the left end 61 is located on the left side of the lower part 50 of the lower member 50, and the right end 62 is located on the left side of the right part 52 of the lower member 50, It is disposed in a form inserted into the upper surface of the member 50.

어퍼 부재(60)는 중앙(63)으로 갈수록 상부로 볼록하게 형성된다.The upper member 60 is formed convexly upward toward the center 63.

한편, 로우워 부재(50)와 어퍼 부재(60)는 측면 충돌 시 맞물림 변형에 의한 초기 에너지 흡수율을 극대화시키도록 전체가 결합되지 않고 CO2 용접(70)(72)에 의해 부분 결합된다. On the other hand, the lower member 50 and the upper member 60 is partially coupled by the CO 2 welding 70, 72, rather than all of them so as to maximize the initial energy absorption rate due to the engagement deformation during side impact.

즉, 차량용 도어 임팩트 빔(50)은 다단 충격 흡수구조로 이루어진다.That is, the vehicle door impact beam 50 has a multi-stage shock absorbing structure.

이하, 상기와 같이 구성된 차량용 도어 임팩트 빔의 작용을 설명하면 다음과 같다.Hereinafter, the operation of the vehicle door impact beam configured as described above is as follows.

먼저, 차량용 도어 임팩트 빔은 측면 충돌 시 1차적으로 로우어 부재(50)에서 찌그러지면서 초기 에너지 흡수율을 극대화하며, 로우어 부재(50)가 어퍼 부재(60)와 맞물려 찌그러지면서 2차적인 잔여 충격량을 흡수하며, 상기와 같은 1차적인 에너지 흡수율 극대화와 잔여 충력량 흡수시 충돌 시간(CRASH TIME)은 지연되며, 운전자의 골반부 상해치는 최소화되게 된다.First, the vehicle door impact beam is primarily crushed in the lower member 50 during side impact, thereby maximizing the initial energy absorption rate, and the second residual impact amount as the lower member 50 is crushed in engagement with the upper member 60. When the primary energy absorption is maximized and the remaining amount of shock is absorbed, the CRASH TIME is delayed, and the pelvic injury of the driver is minimized.

상기와 같이 구성되는 본 발명에 따른 차량용 임펙트 빔은, 로우어 부재와 어퍼 부재의 분리형 구조로 이루어짐과 아울러 둘 중 하나에 절곡부가 형성되어 도어 임팩트 빔에서 에너지 흡수율을 최대화하여 인어 판넬의 실내 밀림량을 최소화함에 따라, 운전자 등의 골반부의 상해치를 최소화할 수 있는 이점이 있다.The impact beam for a vehicle according to the present invention configured as described above has a separate structure of a lower member and an upper member, and a bent portion is formed in one of them, thereby maximizing energy absorption in the door impact beam to maximize indoor sliding amount of the mermaid panel. As it minimizes, there is an advantage that can minimize the injury value of the pelvis, such as the driver.

Claims (5)

어퍼 부재와 로우어 부재가 결합되어 이루어지고, 상기 어퍼 부재와 로우어 부재 중 적어도 하나에는 절곡부가 형성되며,An upper member and a lower member are coupled to each other, and at least one of the upper member and the lower member has a bent portion, 상기 로우어 부재는 좌측부와 우측부가 상측으로 갈수록 옆으로 벌어지는 방향으로 경사지게 형성되고, 좌측부의 하단과 우측부의 하단 사이에 하측부가 일체로 형성된 차량용 도어 임팩트 빔.The lower member is formed to be inclined in the direction in which the left side and the right side open toward the upper side, the vehicle door impact beam is formed integrally between the lower end of the left side and the lower end of the right side. 삭제delete 제 1 항에 있어서,The method of claim 1, 상기 로우어 부재는 상기 절곡부가 상기 하측부에 상측으로 돌출됨과 아울러 다단으로 절곡 형성된 차량용 도어 임팩트 빔.The lower member is a vehicle door impact beam formed in the bent portion is protruded upward in the lower portion and bent in multiple stages. 제 1 항에 있어서,The method of claim 1, 상기 어퍼 부재는 라운드지게 형성된 차량용 도어 임팩트 빔.The upper member is a vehicle door impact beam formed round. 제 1 항에 있어서,The method of claim 1, 상기 로우어 부재와 어퍼 부재는 CO2 용접에 의해 부분 결합된 차량용 도어 임팩트 빔.And the lower member and the upper member are partially coupled by CO 2 welding.
KR1020060127817A 2006-12-14 2006-12-14 Door impact beam for vehicle KR100821010B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52141721U (en) * 1976-04-23 1977-10-27
JPH01147119U (en) * 1988-03-22 1989-10-11
JPH06227253A (en) * 1993-02-05 1994-08-16 Aisin Seiki Co Ltd Car door impact beam
KR19990040162A (en) * 1997-11-17 1999-06-05 양재신 Door reinforcement beam mounting structure of automobile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52141721U (en) * 1976-04-23 1977-10-27
JPH01147119U (en) * 1988-03-22 1989-10-11
JPH06227253A (en) * 1993-02-05 1994-08-16 Aisin Seiki Co Ltd Car door impact beam
KR19990040162A (en) * 1997-11-17 1999-06-05 양재신 Door reinforcement beam mounting structure of automobile

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