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KR101495885B1 - a Bumper back beam for vehicle - Google Patents

a Bumper back beam for vehicle Download PDF

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Publication number
KR101495885B1
KR101495885B1 KR1020120063255A KR20120063255A KR101495885B1 KR 101495885 B1 KR101495885 B1 KR 101495885B1 KR 1020120063255 A KR1020120063255 A KR 1020120063255A KR 20120063255 A KR20120063255 A KR 20120063255A KR 101495885 B1 KR101495885 B1 KR 101495885B1
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KR
South Korea
Prior art keywords
back beam
impact
bumper
space
sides
Prior art date
Application number
KR1020120063255A
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Korean (ko)
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KR20130139628A (en
Inventor
정운덕
Original Assignee
정운덕
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Priority to KR1020120063255A priority Critical patent/KR101495885B1/en
Publication of KR20130139628A publication Critical patent/KR20130139628A/en
Application granted granted Critical
Publication of KR101495885B1 publication Critical patent/KR101495885B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/023—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/03—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by material, e.g. composite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R2019/026—Buffers, i.e. bumpers of limited extent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
    • B60R2019/1813—Structural beams therefor, e.g. shock-absorbing made of metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
    • B60R2019/1833—Structural beams therefor, e.g. shock-absorbing made of plastic material

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

본 발명은 자동차용 범퍼 백빔에 관한 것으로, 더욱 상세하게는 사이드 멤버를 연결하는 합성수지재 백빔의 내부로, 양측의 크래쉬박스를 연결하는 아치형태의 보강재를 삽입하되 그 공간에 리브들이 채워지고, 보강재 단면을 보강하여 내충격성을 향상시킴과 아울러 충격이 가해진 경우에 적정 변형을 유지하면서, 특히 사이드 멤버가 손상되는 것을 방지하도록 발명된 것이다.
본 발명의 구성은, 중앙부에 위치되는 임펙트부(50)와;
상기 임펙트부(50)의 양측 후방에 형성되어 차체의 사이드 멤버 선단에 취부된 크래쉬박스(91)에 마운팅 고정되는 타워부(60)로 이루어지는 합성수지재 자동차 백빔(100)에 있어서,
상기 자동차 백빔(100)은 임펙트부(50)의 단면이 범퍼측을 향하여 트여지는 외부공간(56)과, 범퍼의 반대 내측을 향해 트여지는 내부공간(55)을 각각 갖도록 성형하고,
이 내부공간(55)에는 양측의 크래쉬박스를 연결하는 아치형태의 보강재(80)를 수납하되, 내부공간(55)과 보강재(80) 사이에 양측 형성된 여유공간(S)에는 백빔(100)으로부터 일체로 리브(81)들이 다수개 돌출되어 공간을 채워지게 하며,
상기 보강재(80)의 내부에는 보강살(82)(83)들이 구비되는 것을 특징으로 한다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bumper back beam for an automobile, and more particularly, to an automotive bumper back beam, in which an arch-shaped reinforcement for connecting the crash boxes on both sides is inserted into a synthetic resin back beam connecting side members, Thereby enhancing the impact resistance by reinforcing the cross section and preventing the side members from being damaged, while maintaining proper deformation when an impact is applied.
The constitution of the present invention comprises: an impact section (50) located at the center;
And a tower portion (60) formed on both sides of the impact portion (50) and fixed to a crash box (91) mounted on a front end of a side member of the vehicle body. The synthetic resin vehicle back beam (100)
The automotive back beam 100 is formed so that the cross section of the impact section 50 has an outer space 56 to be turned toward the bumper side and an inner space 55 to be turned toward the inside opposite to the bumper,
The inner space 55 is provided with an arch-shaped reinforcing member 80 for connecting the crush boxes on both sides of the inner space 55. The inner spaces 55 are formed in a space S formed at both sides between the inner space 55 and the reinforcing member 80, A plurality of ribs 81 are integrally protruded to fill the space,
And reinforcing pieces 82 and 83 are provided in the reinforcing material 80. [

Description

자동차용 범퍼 백빔 {a Bumper back beam for vehicle}BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

본 발명은 자동차용 범퍼 백빔에 관한 것으로, 더욱 상세하게는 사이드 멤버를 연결하는 합성수지재 백빔의 내부에 양측의 크래쉬박스를 연결하는 아치형태의 알루미늄 보강재를 삽입하되 백빔과 보강재 사이의 공간에 리브들이 채워지고, 보강재 단면을 보강하여 내충격성을 향상시킴과 아울러 충격이 가해진 경우에 적정 변형을 유지하면서, 특히 사이드 멤버가 손상되는 것을 방지하도록 발명된 것이다.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bumper back beam for an automobile, and more particularly, to an automotive bumper back beam, more particularly, to an automotive bumper back beam which is inserted into a synthetic resin back beam connecting a side member, And reinforcing the cross section of the reinforcing member to improve the impact resistance and to prevent the side members from being damaged, in particular, while maintaining proper deformation when an impact is applied.

일반적으로, 차량에서의 범퍼는 자동차가 다른 자동차나 고정체와의 충돌시, 그 충격을 흡수하여 승차자의 안전을 도모하며, 동시에 차체의 변형을 최소화 할 수 있도록 자동차의 전,후 단부의 소정 부위에 배치되는 완충유닛이다.In general, a bumper in a vehicle absorbs a shock when the automobile collides with another automobile or a stationary object, thereby securing the rider's safety. At the same time, As shown in FIG.

도 1 및 도 2에서 도시한 바와 같이, 상기한 범퍼는 차량의 전,후방에서 차폭 방향으로 배치되는 범퍼빔(101)의 후방 양측에 스테이(103)가 장착되어 크래쉬 박스(111) 등을 통하여 차체측 사이드 멤버(113)에 고정되는 범퍼빔유닛(105)과, 상기 범퍼빔(101)의 전방에 배치되어 충격력을 흡수하는 에너지 업소버(107), 그리고 상기 범퍼빔(101)과 에너지 업소버(107)를 감싸는 범퍼 커버(109)로 이루어진다.As shown in Figs. 1 and 2, the bumper has stays 103 mounted on the rear sides of the bumper beam 101 arranged in the vehicle width direction from the front and rear of the vehicle, A bumper beam unit 105 fixed to the vehicle body side member 113, an energy absorber 107 disposed in front of the bumper beam 101 to absorb an impact force, And a bumper cover 109 surrounding the bumper cover 107.

여기서, 상기한 종래의 범퍼빔 유닛(105)은, 도 2에서 도시한 바와 같이, 롤 포밍 성형되는 2장의 범퍼 레일(121,123)이 상호 용접되어 범퍼빔(101)을 형성하고, 상기 범퍼빔(101)의 전면 중앙에는 일정길이의 보강 플레이트(125)가 용접된다.2, the two bumper rails 121 and 123 to be roll-formed are welded to each other to form a bumper beam 101, and the bumper beam 105 A reinforcing plate 125 having a predetermined length is welded to the center of the front surface of the base plate 101.

또한, 상기 범퍼빔(101)의 후면 양단부에는 각각 스테이(103)가 용접되며, 상기 각 스테이(103)는 플랜지(127)을 통하여 각 크래쉬 박스(111)에 조립되어 사이드 멤버(113)에 설치된다.
The stay 103 is welded to both rear ends of the bumper beam 101. The stays 103 are assembled to the crash boxes 111 through the flanges 127 and installed on the side members 113 do.

그러나, 상기한 종래의 범퍼빔 유닛(105)은, 센터 폴 충돌시험의 결과에서와 같이, 충격 에너지가 범퍼빔(101)의 중앙에 가해지면, 상기 범퍼빔(101)은 그 중앙에 보강 플레이트(125)가 구성됨에도 불구하고, 상기 충격 에너지를 스테이(103)와 크래쉬 박스(111)를 통하여 사이드 멤버(113)로 분산 전달하지 못하고, 범퍼빔(101)의 중앙이 급격히 휘어지면서 꺾이게 되어 그 꺾임부(중앙)에 과도한 응력이 작용하게 되는 등, 그 충격흡수성능이 낮은 결과를 나타내는 문제점이 있다.However, in the conventional bumper beam unit 105, when impact energy is applied to the center of the bumper beam 101, as in the result of the center pole impact test, the bumper beam 101 has a reinforcing plate The impact energy can not be dispersed and transferred to the side member 113 through the stay 103 and the crash box 111 and the center of the bumper beam 101 is bent while bending rapidly, There is a problem that an excessive stress acts on the bending portion (center), resulting in a low shock absorbing performance.

따라서 본 발명은 상기한 바와 같은 종래의 문제점들을 해소하기 위하여 발명된 것으로, 본 발명의 목적은 정면 충격에 의한 충격 에너지를 다단으로 흡수함과 동시에, 잔여 충격 에너지를 범퍼빔 양단의 스테이를 통하여 프론트 사이드 멤버 측으로 고르게 분산 흡수되도록 하여 내구성과 최종 충격 허용량을 증가시키는 범퍼 백빔을 제공하는데 있다.
SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a shock absorber capable of absorbing impact energy due to frontal impact in multiple stages, So that the durability and the final impact allowable amount are increased.

이러한 목적을 달성하기 위해 본 발명은, 중앙부에 위치되는 임펙트부(50)와; In order to achieve the above object, the present invention is characterized by comprising: an impact section (50) located at the center;

상기 임펙트부(50)의 양측 후방에 형성되어 차체의 사이드 멤버 선단에 취부된 스테이(91)에 마운팅 고정되는 타워부(60)로 이루어지는 합성수지재 자동차 백빔(100)에 있어서, And a tower portion (60) formed on both sides of the impact portion (50) and fixed to a stay (91) mounted on a front end of a side member of the vehicle body,

상기 자동차 백빔(100)은 임펙트부(50)의 단면이 범퍼측을 향하여 트여지는 외부공간(56)과, 범퍼의 반대 내측을 향해 트여지는 내부공간(55)을 각각 갖도록 성형하고,The automotive back beam 100 is formed so that the cross section of the impact section 50 has an outer space 56 to be turned toward the bumper side and an inner space 55 to be turned toward the inside opposite to the bumper,

이 내부공간(55)에는 양측의 크래쉬박스를 연결하는 아치형태의 알루미늄 보강재(80)를 수납하되, 이 보강재(80)는 알루미늄 압출로 성형하고 내부공간(55)과 보강재(80) 사이에 양측 형성된 여유공간(S)에는 백빔(100)으로부터 일체로 리브(81)들이 다수개 돌출되어 공간을 채워지게 며,
상기 보강재(80)의 내부에는 보강살(82)(83)들이 구비되는 것에 의해 달성된다. An aluminum reinforcing member 80 in the form of an arch connecting the crush boxes on both sides is accommodated in the inner space 55. The reinforcing member 80 is formed by aluminum extrusion so as to be inserted between the inner space 55 and the reinforcing member 80, A plurality of ribs 81 are integrally protruded from the back beam 100 in the formed clearance space S,
And reinforcing pieces 82 and 83 are provided inside the reinforcing material 80. [

여기서, 보강재(80)의 양단부는 자동차 백빔(100)의 타워부(60) 위치까지 연장되어 크래쉬박스(91)에 함께 마운팅 고정된다.Both end portions of the reinforcing member 80 extend to the position of the tower portion 60 of the automotive back beam 100 and are fixed together with the crash box 91. [

또, 상기 보강재(80)는 2개 이상의 곡률을 갖도록 성형될 수도 있다.
Further, the reinforcing member 80 may be formed to have two or more curvatures.

삭제delete

이러한 본 발명의 구성에 의하면, 백빔(100)의 내부공간(55)에 양측의 크래쉬박스를 연결하는 아치형태의 보강재(80)를 더 설치하는 것에 의해 그 양측으로 여유공간(S)이 형성된다.According to the construction of the present invention, the additional space S is formed on both sides of the back beam 100 by further providing an arch-shaped stiffener 80 connecting the crash boxes on both sides to the internal space 55 of the back beam 100 .

따라서, 최종 충격 허용량을 증가시킬 수 있고, 충격이 가해진 경우에 적정 변형을 유지할 수 있고, 여유공간(S)에는 백빔(100)으로부터 일체로 돌출된 리브(81)들이 공간을 채워지게 하며, 보강재(80)의 내부는 보강살(82)(83)들이 형성되어 충격시 임펙트부위와 사이드 멤버가 벌어짐 방향으로 변형되거나 크게 손상되는 것을 방지할 수도 있어, 제품의 내구성과 최종 충격 허용량을 증가시킬 수 있는 것이다.
Therefore, it is possible to increase the final impact allowable amount, to maintain the appropriate deformation when the impact is applied, to allow the ribs 81 integrally projected from the back beam 100 to fill the space in the clearance space S, The reinforcing pieces 82 and 83 may be formed inside the reinforcing piece 80 to prevent the impact and side members from being deformed or severely damaged during the impact so that the durability and the final impact tolerance of the product can be increased It is.

도 1은 일반적인 차량용 범퍼의 분해 사시도.
도 2는 종래 기술에 따른 차량용 범퍼빔 유닛의 사시도.
도 3은 본 발명의 백빔에 보강재가 조립된 상태를 보인 사시도.
도 4은 본 발명의 백빔의 내부에 설치된 아치형태의 보강재의 설치상태 평면도.
도 5는 본 발명에 의한 보강재를 보인 사시도.
도 6a 내지 6c는 본 발명의 백빔의 내부에 형성된 설치공간으로 보강재가 설치된 구조를 보인 단면도.
도 7a 내지 7b는 스테이 단면의 실시예를 보인 단면도.
도 8은 보강재가 2개 이상의 곡률을 갖도록 성형되는 구성을 보인 정면도.1 is an exploded perspective view of a general automotive bumper.
2 is a perspective view of a conventional bumper beam unit for a vehicle.
3 is a perspective view showing a state in which a stiffener is assembled to a back beam of the present invention.
4 is a plan view of an installation state of an arch-shaped stiffener provided inside the back beam of the present invention.
5 is a perspective view showing a reinforcement according to the present invention.
6A to 6C are sectional views showing a structure in which a stiffener is installed in an installation space formed in the back beam of the present invention.
7A to 7B are sectional views showing an embodiment of a stay cross section.
8 is a front view showing a configuration in which a stiffener is formed to have two or more curvatures.

이하, 본 발명의 바람직한 실시 예를 첨부된 도면에 의거하여 상세히 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

본 발명인 자동차 백빔(100)은 굴곡이 있도록 하여 성형되며 차체의 전방에 위치되어 실질적으로 충격을 전달받아 흡수하는 것으로, 임펙트부(50)와, 상기 임펙트부(50)의 양측에서 각각 차체의 사이드 멤버의 스테이에 취부되는 타워부(60)로 크게 이루어진다.The automobile back beam 100 according to the present invention is formed by bending and is placed in front of the vehicle body to receive and absorb the substantial impact. The automobile back beam 100 includes an impact part 50, And a tower portion 60 mounted on the stay of the member.

이때, 사이드 멤버와 타워부(60) 사이에는 크래쉬박스(91)가 설치되기도 한다.At this time, a crash box 91 may be provided between the side member and the tower unit 60.

본 발명의 임펙트부(50)는 도 6a 내지 6c에서 도시한 바와 같이 범퍼를 향해 전방으로 트여지는 외부공간(56)과, 그 반대 내측을 향해 트여지는 내부공간(55)을 각각 갖도록 반복되게 성형하게 된다.The impact portion 50 of the present invention is repeatedly molded to have an outer space 56 that is forwardly directed toward the bumper and an inner space 55 that is extended toward the opposite interior as shown in Figures 6a to 6c, .

그리고, 이 내부공간(55)에는 보강재(80)를 수납하게 된다.The reinforcing member 80 is accommodated in the inner space 55.

보강재(80)는 사각 단면을 가진 알루미늄 재질로 압출에 의해 성형되며 내부공간(55)의 내측으로 위치된 상태에서 양측의 크래쉬박스를 연결하는 아치형태로 이루어져 있으므로, 보강재(80)의 중앙은 내부공간(55)의 중심부에 접촉된 상태에서 그 양측에는 내부공간(55)과 보강재(80)의 사이에 여유공간(S)이 형성되도록 하는 것이다.Since the reinforcing member 80 is made of an aluminum material having a rectangular cross section and is formed by extrusion and has an arch shape connecting the crash boxes on both sides in a state of being positioned inside the internal space 55, The space S is formed between the inner space 55 and the stiffener 80 on both sides thereof in contact with the center of the space 55.

이때, 이 백빔(100)에는 도 5와 같이 여유공간(S)을 채워지게 하는 리브(81)들이 다수개 돌출되도록 성형하여 허용강도를 더 보강하게 된다.At this time, as shown in FIG. 5, the back beam 100 is shaped so that a plurality of ribs 81 that fill the space S are protruded to further reinforce the allowable strength.

그리고, 상기 보강재(80)는 도 8에서 도시한 바와 같이 2개 이상의 곡률을 갖도록 성형될 수 있다.The reinforcing member 80 may be formed to have two or more curvatures as shown in FIG.

보강재(80)의 양단부는 자동차 백빔(100)의 타워부(60) 위치까지 연장되어 크래쉬박스(91)에 함께 마운팅 고정된다.Both ends of the reinforcing member 80 extend to the position of the tower portion 60 of the automotive back beam 100 and are fixed together with the crash box 91. [

본 발명의 보강재(80)는 도 6a 내지 6c에서와 같이 속이 빈 사각 단면형상으로 그 내부에는 보강살(82)(83)들이 수평방향 또는 수직 방향으로 형성되어 강도를 더 보강시키게 된다.The reinforcing member 80 of the present invention has a hollow rectangular cross-sectional shape as shown in Figs. 6A to 6C. Inside the reinforcing member 80, reinforcing pieces 82 and 83 are formed horizontally or vertically to reinforce the strength.

한편, 자동차 백빔(100)의 몸체 상하부 플랜지에 임펙트부(50)와 타워부(60) 사이를 경사부(70)로 연결하는 형상으로 제작될 수 있다.Meanwhile, it is possible to connect the impact portion 50 and the tower portion 60 to the upper and lower flanges of the body of the automobile back beam 100 through the inclined portion 70.

따라서, 충격 흡수량이 향상되고 강도가 더 커지게 되므로, 동일 허용 강도에 대해 제품의 무게를 더 줄일 수 있고, 변형을 줄일 수 있는 것이다.Therefore, the impact absorbing amount is improved and the strength is increased, so that the weight of the product can be further reduced for the same allowable strength, and the deformation can be reduced.

본 발명의 보강재(80)는 도 6a 내지 6c에서 도시한 실시예에서와 같이 외부는 "ㅁ"형상의 폐단면부를 갖도록 성형하고, 그 내부는 보강살(82)(83)들이 종, 횡으로 다양한 형상으로 공간을 구획한 상태로 강도를 보강시키게 되는 것이다.The reinforcing member 80 of the present invention is formed such that the exterior thereof has a closed end face portion in the shape of "ㅁ", as in the embodiment shown in Figs. 6a to 6c, in which the reinforcing fingers 82 (83) And the strength is reinforced by dividing the space into various shapes.

그리고, 도 7a 및 도 7b에서 도시한 바와 같이 크래쉬박스(91)의 단면 내부에도 보강부재(92)를 더 보강하는 것이 허용강도 증대 효과면에서 좋다.
As shown in FIGS. 7A and 7B, it is preferable to further reinforce the reinforcing member 92 in the cross section of the crash box 91 from the viewpoint of an allowable strength increase effect.

50 - 임펙트부 55 - 내부공간
56 - 외부공간 60 - 타워부
70 - 경사부 80 - 보강재
81 - 리브 82, 83 - 보강살
91 - 크래쉬박스 100 - 자동차 백빔50 - Impact 55 - Interior space
56 - Outer space 60 - Tower part
70 - slope 80 - stiffener
81 - Rib 82, 83 - Reinforced Flesh
91 - Crash Box 100 - Car Back beam

Claims (3)

중앙부에 위치되는 임펙트부(50)와;
상기 임펙트부(50)의 양측 후방에 형성되어 차체의 사이드 멤버 선단에 취부된 크래쉬박스(91)에 마운팅 고정되는 타워부(60)로 이루어지는 합성수지재 자동차 백빔(100)에 있어서,
상기 자동차 백빔(100)은 임펙트부(50)의 단면이 범퍼측을 향하여 트여지는 외부공간(56)과, 범퍼의 반대 내측을 향해 트여지는 내부공간(55)을 각각 갖도록 성형하고,
이 내부공간(55)에는 양측의 크래쉬박스를 연결하는 아치형태의 보강재(80)를 수납하되, 내부공간(55)과 보강재(80) 사이에 양측 형성된 여유공간(S)에는 백빔(100)으로부터 일체로 리브(81)들이 다수개 돌출되어 공간을 채워지게 하며,
상기 보강재(80)의 내부에는 보강살(82)(83)들이 구비되는 것을 특징으로 하는 자동차용 범퍼 백빔.
An impact section (50) located at a central portion;
And a tower portion (60) formed on both sides of the impact portion (50) and fixed to a crash box (91) mounted on a front end of a side member of the vehicle body. The synthetic resin vehicle back beam (100)
The automotive back beam 100 is formed so that the cross section of the impact section 50 has an outer space 56 to be turned toward the bumper side and an inner space 55 to be turned toward the inside opposite to the bumper,
The inner space 55 is provided with an arch-shaped reinforcing member 80 for connecting the crush boxes on both sides of the inner space 55. The inner spaces 55 are formed in a space S formed at both sides between the inner space 55 and the reinforcing member 80, A plurality of ribs 81 are integrally protruded to fill the space,
Wherein reinforcing members (82) (83) are provided inside the reinforcing member (80).
청구항 1에 있어서, 상기 보강재(80)는 2개 이상의 곡률을 갖도록 성형됨을 특징으로 하는 자동차용 범퍼 백빔.
The automotive bumper back beam according to claim 1, wherein the reinforcing member (80) is formed to have two or more curvatures.
삭제delete
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KR101691110B1 (en) 2015-07-09 2017-01-09 인천대학교 산학협력단 Front bumper system with divided impact absorption structure
US9919667B2 (en) 2016-06-27 2018-03-20 Ford Global Technologies, Llc Bumper assembly
KR20190128300A (en) 2018-05-08 2019-11-18 주식회사 캠스 Rear Back Beam Structure
US20210268976A1 (en) * 2018-09-10 2021-09-02 Arcelormittal Bumper beam having an insert

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KR102451872B1 (en) * 2016-11-21 2022-10-06 현대자동차 주식회사 Hybrid bumper beam for vehicles
EP3819195B1 (en) * 2018-09-07 2024-07-03 Nippon Steel Corporation Automobile manufacturing member

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KR101327567B1 (en) * 2011-05-18 2013-11-15 성준엽 a Bumper back beam for vehicle

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KR101691110B1 (en) 2015-07-09 2017-01-09 인천대학교 산학협력단 Front bumper system with divided impact absorption structure
US9919667B2 (en) 2016-06-27 2018-03-20 Ford Global Technologies, Llc Bumper assembly
KR20190128300A (en) 2018-05-08 2019-11-18 주식회사 캠스 Rear Back Beam Structure
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US11807178B2 (en) * 2018-09-10 2023-11-07 Arcelormittal Bumper beam having an insert

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