KR100394948B1 - A Backbeam of Automobile Bumper - Google Patents

A Backbeam of Automobile Bumper Download PDF

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Publication number
KR100394948B1
KR100394948B1 KR10-2001-0022361A KR20010022361A KR100394948B1 KR 100394948 B1 KR100394948 B1 KR 100394948B1 KR 20010022361 A KR20010022361 A KR 20010022361A KR 100394948 B1 KR100394948 B1 KR 100394948B1
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KR
South Korea
Prior art keywords
bumper
back beam
extension portion
present
automobiles
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KR10-2001-0022361A
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Korean (ko)
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KR20020082653A (en
Inventor
이기수
Original Assignee
현대자동차주식회사
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Priority to KR10-2001-0022361A priority Critical patent/KR100394948B1/en
Publication of KR20020082653A publication Critical patent/KR20020082653A/en
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Publication of KR100394948B1 publication Critical patent/KR100394948B1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18Bumpers, 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/03Bumpers, 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24Arrangements for mounting bumpers on vehicles
    • B60R19/26Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
    • B60R19/34Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18Bumpers, 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
    • B60R2019/1806Structural beams therefor, e.g. shock-absorbing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18Bumpers, 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
    • B60R2019/1886Bumper fascias and fastening means therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18Bumpers, 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
    • B60R2019/1893Bumpers, 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 comprising a multiplicity of identical adjacent shock-absorbing means

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

Abstract

본 발명은 자동차용 범퍼의 백빔에 관한 것으로서, 보다 상세하게는 자동차 범퍼의 내부에 마련되어 범퍼의 형상유지와 충돌시의 에너지를 탄성변형 또는 소성변형을 통하여 흡수하는 백빔을 전방패널과 후방패널로 나누고 이 두 패널을 밀납봉입 및 컬링플레이트를 이용하여 결합한 자동차용 범퍼의 백빔에 관한 것이다.The present invention relates to a back beam of a bumper for automobiles, and more particularly, a back beam provided in an interior of a bumper for absorbing energy during shape maintenance and collision of a bumper through elastic deformation or plastic deformation into a front panel and a rear panel. The present invention relates to a back beam of a bumper for automobiles in which these two panels are joined by using a sealing and curling plate.

본 발명의 목적은 자동차용 범퍼의 구성품인 백빔에서 충격에너지를 효율적으로 대거 흡수하도록 하고, 특히 저속 및 고속 충돌시와 같이 다양한 속도대에서 백빔에 입력되는 충격에너지를 단계적으로 흡수되도록 함으로써 백빔의 충격흡수 능력을 극대화시키는데 있다.An object of the present invention is to efficiently absorb a large amount of impact energy in the back beam, which is a component of a bumper for automobiles, and in particular, to gradually absorb the impact energy input to the back beam at various speeds, such as during a low speed and high speed collision, thereby impacting the back beam. To maximize the absorption capacity.

상기 목적을 달성하기 위한 본 발명의 자동차용 범퍼의 백빔은, 범퍼의 외피인 페이셔의 내측에 마련된 에너지흡수부재를 지지하며 차체의 스테이에 장착되는 자동차용 범퍼의 백빔에 있어서, 후방으로 소정길이 연장된 제1연장부를 갖는 전방패널과 전방으로 소정길이 연장된 제2연장부를 갖는 후방패널로 구성되고, 상기 제1연장부와 제2연장부는 차체길이 방향으로 슬립가능하게 중첩되며, 그 중첩된 부위중 전방측은 밀납으로 결합되고 후방측은 컬링플레이트에 의해 결합되어 이루어진 것이다.The back beam of the automobile bumper of the present invention for achieving the above object, in the back beam of the automobile bumper mounted on the stay of the vehicle supporting the energy absorbing member provided on the inside of the facer, which is the shell of the bumper, a predetermined length to the rear A front panel having an extended first extension portion and a rear panel having a second extension portion extending a predetermined length forward, wherein the first extension portion and the second extension portion are slidably overlapped in the vehicle body length direction; The front side of the site is joined by beeswax and the rear side is made by the curling plate.

Description

자동차용 범퍼의 백빔{A Backbeam of Automobile Bumper}Backbeam of Automobile Bumper

본 발명은 자동차용 범퍼의 백빔에 관한 것으로서, 보다 상세하게는 자동차범퍼의 내부에 마련되어 범퍼의 형상유지와 충돌시의 에너지를 탄성변형 또는 소성변형을 통하여 흡수하는 백빔을 전방패널과 후방패널로 나누고 이 두 패널을 밀납봉입 및 컬링플레이트를 이용하여 결합한 자동차용 범퍼의 백빔에 관한 것이다.The present invention relates to a back beam of a bumper for a vehicle, and more particularly, a back beam provided in an interior of a bumper for absorbing energy during shape maintenance and collision of a bumper through elastic deformation or plastic deformation into a front panel and a rear panel. The present invention relates to a back beam of a bumper for automobiles in which these two panels are joined by using a sealing and curling plate.

일반적으로 자동차 범퍼는 차체의 전방 및 후방에 설치되어 차체 및 탑승자를 보호할 뿐만 아니라 후드 및 엔진룸에 장착된 엔진과 각종 기기 등을 보호하는 역할을 한다.In general, the vehicle bumper is installed at the front and rear of the vehicle body to protect the vehicle body and the occupant as well as to protect the engine and various devices mounted in the hood and engine room.

또한, 범퍼는 각 국 법규에 의한 충격요건을 만족하고, 넓은 온도영역에 있어서 고강성, 내충격성에 우수하여야 하며 온도에 의한 신축이 작아야 하는데, 그 구성은 범퍼의 외피를 이루는 페이셔와 페이셔의 형상유지와 충돌시의 충격을 완화하고 형상복원 기능을 갖는 에너지흡수부재와 에너지흡수부재를 지지하며 충돌시의 에너지를 탄성변형 또는 소성변형을 통하여 흡수하는 백빔(backup beam)으로 되어 있다.In addition, the bumper satisfies the impact requirements of each country's regulations, should be excellent in high rigidity and impact resistance in a wide temperature range, and the expansion and contraction by temperature should be small. It is a backup beam that absorbs the energy absorbing member and the energy absorbing member having the shape restoring function, reduces the impact during the collision, and absorbs the energy during the collision through elastic deformation or plastic deformation.

이상과 같은 자동차용 범퍼는 도 1 및 도 2에 도시된 바와 같이, 차체(10)의 스테이(Stay)(10a)에 충격흡수를 위하여 장착되는 바, 상기 범퍼는 차체(10)로 침입되는 물리적 충격을 차단하는 백빔(back Beam)(20)과, 상기 백빔(20)에 충격이 가해지기에 앞서 우선적으로 물리적 충격을 흡수하는 에너지흡수부재(30)와, 상기 에너지흡수부재(30)의 이탈을 방지함과 더불어 외관을 미려하게 커버하는 페이셔(40)로 이루어진다.As described above, the bumper for automobiles is mounted to the stay 10a of the vehicle body 10 as illustrated in FIGS. 1 and 2, and the bumper is physically infiltrated into the vehicle body 10. Back beam 20 to block the impact, the energy absorbing member 30 to absorb the physical shock prior to the impact is applied to the back beam 20, the departure of the energy absorbing member 30 It is made of a facer 40 to cover the appearance and to prevent the appearance.

특히, 상기 백빔(20)은 에너지흡수부재(30)측에서 밀려 들어오는 충격력을 차단하며 차체(10)의 스테이(10a)에 마운팅될 수 있도록 구성된다.In particular, the back beam 20 blocks the impact force pushed from the energy absorbing member 30 side and is configured to be mounted on the stay 10a of the vehicle body 10.

그러나, 종래 자동차용 범퍼의 백빔(20)은 구조가 단순하면서도 국부적 강도 및 강성이 큰 "ㄷ"자 형이나 "ㅁ"자 형의 단일 부재로 이루어져 있다. 따라서, 저속 충돌과 같이 비교적 적은 충돌에너지가 범퍼의 백빔(20)에 입력될 때에는 변형이 이루어지지 않고, 고속 충돌과 같이 큰 충돌에너지에 대해서는 도 2의 가상선으로 표현된 바와 같이 전면패널(21)의 일부가 변형되므로 충격흡수가 제대로 이루어지지 않아 그 충격에너지가 차체 및 탑승자에게 그대로 전달되는 문제점이 있었다.However, the back beam 20 of the conventional automobile bumper has a simple structure having a simple structure of "C" shape or "W" shape with high local strength and rigidity. Therefore, when relatively small collision energy, such as a low-speed collision, is input to the back beam 20 of the bumper, no deformation is made, and a large collision energy, such as a high-speed collision, is represented by the virtual line of FIG. Since a part of the) is deformed, the shock absorption is not made properly, the impact energy is transmitted to the body and the occupant as it is.

본 발명은 전술한 문제점을 해결하기 위한 것으로서, 그 목적은 자동차용 범퍼의 구성품인 백빔에서 충격에너지를 효율적으로 대거 흡수하도록 하고, 특히 저속 및 고속 충돌시와 같이 다양한 속도대에서 백빔에 입력되는 충격에너지를 단계적으로 흡수되도록 함으로써 백빔의 충격흡수 능력을 극대화시키는데 있다.SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object thereof is to efficiently absorb a large amount of impact energy from a back beam which is a component of a bumper for an automobile, and in particular, an impact input to the back beam at various speeds such as at a low speed and a high speed collision. By absorbing energy step by step to maximize the shock absorption ability of the back beam.

도 1은 종래 자동차 범퍼를 나타낸 분리 사시도,1 is an exploded perspective view showing a conventional car bumper;

도 2는 종래 자동차 범퍼의 백빔을 나타낸 단면도,2 is a cross-sectional view showing a back beam of a conventional automobile bumper;

도 3은 본 발명에 따른 백빔이 적용된 자동차의 범퍼를 나타낸 분리사시도,3 is an exploded perspective view illustrating a bumper of a vehicle to which a back beam is applied according to the present invention;

도 4는 본 발명에 따른 백빔을 나타낸 단면도.Figure 4 is a cross-sectional view showing a back beam according to the present invention.

※도면의 주요부분에 대한 부호의 설명※※ Explanation of symbols about main part of drawing ※

10 : 차체 10a : 스테이10: body 10a: stay

20 : 종래 백빔 30 : 에너지흡수부재20: conventional back beam 30: energy absorbing member

40 : 페이셔 200 : 본 발명의 백빔40: Fasher 200: back beam of the present invention

201 : 전방패널 201a : 제1연장부201: front panel 201a: first extension part

202 : 후방패널 202a : 제2연장부202: rear panel 202a: second extension

210 : 밀납 211 : 홀210: Beeswax 211: Hall

220 : 컬링플레이트220: curling plate

전술한 목적을 달성하기 위한 본 발명의 자동차용 범퍼의 백빔은, 범퍼의 외피인 페이셔의 내측에 마련된 에너지흡수부재를 지지하며 차체의 스테이에 장착되는 자동차용 범퍼의 백빔에 있어서,In the back beam of the bumper for automobiles of the present invention for achieving the above object, in the back beam of the bumper for cars mounted on the stay of the vehicle supporting the energy absorbing member provided on the inside of the facer, which is the outer surface of the bumper,

후방으로 소정길이 연장된 제1연장부를 갖는 전방패널과 전방으로 소정길이 연장된 제2연장부를 갖는 후방패널로 구성되고, 상기 제1연장부와 제2연장부는 차체길이 방향으로 슬립가능하게 중첩되며, 그 중첩된 부위중 전방측은 밀납으로 결합되고 후방측은 컬링플레이트에 의해 결합되어 이루어진 것이다.A front panel having a first extension extending a predetermined length to the rear and a rear panel having a second extension extending a predetermined length to the front, wherein the first extension and the second extension are slidably overlapped in the vehicle body length direction; Among the overlapped portions, the front side is joined by beeswax and the rear side is joined by curling plates.

그리고, 상기 밀납으로 결합되는 부위는 차체길이 방향에 수직하게 천공된후 밀납이 봉입된 것이고, 상기 컬링플레이트는 제1연장부의 하면과 제2연장부의 하면을 상호 결합시키도록 "S"자 형으로 된 것이다.The bead is joined to the beeswax and the bead is sealed after being drilled perpendicular to the vehicle body length direction. The curling plate has an "S" shape in order to couple the lower surface of the first extension and the lower surface of the second extension to each other. It is.

이하, 본 발명의 특징적인 기술구성을 첨부된 도면에 의거하여 보다 상세하게 설명하면 다음과 같다.Hereinafter, the technical configuration of the present invention will be described in detail with reference to the accompanying drawings.

도 3은 본 발명에 따른 백빔이 적용된 자동차의 범퍼를 나타낸 분리사시도이고, 도 4는 본 발명에 따른 백빔을 나타낸 단면도이다.3 is an exploded perspective view illustrating a bumper of a vehicle to which a back beam is applied according to the present invention, and FIG. 4 is a cross-sectional view of the back beam according to the present invention.

도 3에 나타난 바와 같이 본 발명은 범퍼의 외피를 이루는 페이셔(40)와, 이 페이셔(40)의 내측에 마련되어 형상유지와 충돌시의 충격을 완화하고 형상복원 기능을 갖는 에너지흡수부재(30)와, 이 에너지흡수부재(30)를 지지하며 충돌시의 에너지를 탄성변형 또는 소성변형을 통하여 흡수하고 차체(10)의 스테이(10a)에 고정되도록 하는 백빔(200)으로 구성된 자동차의 범퍼중에서 상기 백빔(200)을 개량한 것이다.As shown in FIG. 3, the present invention includes a facer 40 constituting the bumper shell and an energy absorbing member provided inside the facer 40 to mitigate impact during shape maintenance and collision, and having a shape restoration function. 30) and the bumper of the vehicle, which supports the energy absorbing member 30 and absorbs the energy during the collision through elastic deformation or plastic deformation and is fixed to the stay 10a of the vehicle body 10. The back beam 200 is improved.

상기 백빔(200)은 도 4를 참조하여 자세하게 설명될 것인바, 여기에서 살펴보면 본 발명에 따른 자동차용 범퍼의 백빔(200)은 에너지흡수부재(30) 측과 접촉되는 전방패널(201)과 차체(10)의 스테이(10a) 측과 접촉되는 후방패널(202)로 양분되어 있다.The back beam 200 will be described in detail with reference to FIG. 4. Here, the back beam 200 of the bumper for a vehicle according to the present invention is the front panel 201 and the vehicle body which are in contact with the energy absorbing member 30 side. It is divided into two parts by the rear panel 202 which contacts the stay 10a side of (10).

또한, 상기 전방패널(201)의 상단과 하단에는 후방패널(202) 쪽으로 소정길이 연장된 연장부가 일체로 성형되어 있는데, 편의상 전방패널에 성형된 연장부를 제1연장부(201a)라고 한다.In addition, an extension part extending a predetermined length toward the rear panel 202 is integrally formed at the upper end and the lower end of the front panel 201. For convenience, the extension part formed on the front panel is called a first extension part 201a.

그리고, 상기 전방패널(201)의 후방에 위치되는 후방패널(202)의 상, 하단에도 전방패널(201) 쪽으로 소정길이 연장된 연장부가 일체로 성형되는데, 이 연장부는 제2연장부(202a)라 한다.In addition, an extension part extending a predetermined length toward the front panel 201 is integrally formed on the upper and lower ends of the rear panel 202 located behind the front panel 201, and the extension part is formed on the second extension part 202a. It is called.

즉, 본 발명의 백빔(200)은 후방패널(202) 쪽으로 소정길이 연장된 제1연장부(201a)를 갖는 전방패널(201)과 상기 전방패널(201) 쪽으로 소정길이 연장된 제2연장부(202a)를 갖는 후방패널(202)로 구성된다.That is, the back beam 200 of the present invention includes a front panel 201 having a first extension portion 201a extending a predetermined length toward the rear panel 202 and a second extension portion extending a predetermined length toward the front panel 201. And a rear panel 202 having a 202a.

한편, 상기 제1연장부(201a)와 제2연장부(202a)는 충돌시 충돌에너지의 입력방향이 되는 차체의 길이방향으로 슬립가능하게 면접되도록 중첩되고, 이 중첩되는 부위 중에서 충돌시 차체길이 방향으로 전달되는 충돌에너지가 먼저 전달되는 전방부위에는 상기 제1연장부(201a)와 제2연장부(202a)가 상호 연결되기 위하여 밀납(210)으로 결합된다.On the other hand, the first extension portion 201a and the second extension portion 202a are overlapped so as to be slidably interviewed in the longitudinal direction of the vehicle body which becomes the input direction of the collision energy during collision, and the vehicle body length during collision among these overlapping portions. The first extension portion 201a and the second extension portion 202a are coupled to the beeswax 210 to the front portion where the collision energy transmitted in the first direction is first transmitted.

물론, 상기 제1연장부(201a)와 제2연장부(202a)를 밀납(210)으로 결합하기 위한 수단은 여러 가지가 있을 수 있겠으나 보다 바람직하게는 제1연장부(201a)와 제2연장부(202a)의 중첩부위에 지름이 약 10mm가 되도록 홀(211)을 천공하고 이 천공된 홀(211)에 밀납(210)을 봉입하여 홀(211)을 메우는 것이 좋다. 그리고, 평상시에는 상기 제1연장부(201a)와 제2연장부(202a)가 완벽하게 결합되어 있다가 약 20km/h의 정속 주행속도에 해당되는 충돌에너지가 입력될 때에는 홀(211)에 봉입된 밀납(210)이 완전 파단되어서 충분히 충격을 흡수할 수 있도록 본 발명의 실시예에서는 천공된 홀(211)의 개수를 4개로 하였으나 반드시 여기에 국한될 필요는 없다.Of course, there may be various means for coupling the first extension part 201a and the second extension part 202a to the beeswax 210, but more preferably the first extension part 201a and the second extension part 201a. The hole 211 may be drilled in the overlapped portion of the extension part 202a to have a diameter of about 10 mm, and the bead 210 may be filled in the perforated hole 211 to fill the hole 211. In addition, the first extension part 201a and the second extension part 202a are normally perfectly coupled, and when the collision energy corresponding to the constant traveling speed of about 20 km / h is input, it is enclosed in the hole 211. In the embodiment of the present invention, the number of perforated holes 211 is set to 4 so that the beeswax 210 is completely broken so as to sufficiently absorb shock, but it is not necessarily limited thereto.

그리고, 상기 제1연장부(201a)와 제2연장부(202a)가 중첩되는 부위 중 상기 천공된 홀(211)의 후방에 위치되는 부위에는 "S"자 형으로 2단 절곡된 컬링플레이트(curling plate)(220)가 설치되는데, 이 컬링플레이트(220)는 제1연장부(201a)와 제2연장부(202a)가 이루는 후방 단턱에 위치되어 상기 제1연장부(201a)의 하면과 제2연장부(202a)의 하면을 상호 연결시킨다.A curling plate bent in two stages in an “S” shape is located at a position located behind the perforated hole 211 among the portions where the first extension portion 201a and the second extension portion 202a overlap. Curling plate 220 is installed, the curling plate 220 is located on the rear end of the first extension portion 201a and the second extension portion 202a and the lower surface of the first extension portion 201a The lower surface of the second extension portion 202a is interconnected.

다시 말하면, 상기 제1연장부(201a)와 제2연장부(202a)는 별도로 결합되지 않고 단지 중첩만 된 상태에서 1차적으로 밀납(210) 봉입에 의해 연결되고 2차적으로 컬링플레이트(220)를 통해 연결되는데, 이 때 상기 제1연장부(201a)의 하면과 컬링플레이트(220)의 일측면이 용접에 의해 결합되고 제2연장부(202a)의 하면과 컬링플레이트(220)의 타측면이 용접에 의해 결합됨으로써 상기 제1연장부(201a)와 제2연장부(202a)는 서로 연결되는 것이다.In other words, the first extension part 201a and the second extension part 202a are connected by encapsulation of the beeswax 210 primarily in an overlapping state without being combined separately, and are secondly curled plates 220. In this case, the lower surface of the first extension portion 201a and one side of the curling plate 220 are joined by welding, and the lower surface of the second extension portion 202a and the other side of the curling plate 220 are connected to each other. By the welding, the first extension part 201a and the second extension part 202a are connected to each other.

따라서, 상기 컬링플레이트(220)를 통하여 상호 연결된 백빔(200)은 약 40km/h 이상에 해당되는 고속 충돌에너지가 입력되면 먼저 천공된 홀(211)에 봉입된 밀납(210)이 파단되면서 에너지가 다소 소거되고, 다음으로 상기 컬링플레이트(220)의 중간부가 변형되면서 더 큰 에너지를 흡수하게 된다.Therefore, when the high-speed collision energy corresponding to about 40 km / h or more is input to the back beams 200 interconnected through the curling plate 220, the beeswax 210 encapsulated in the perforated hole 211 is broken first and energy is generated. It is somewhat erased, and then the middle portion of the curling plate 220 is deformed to absorb more energy.

만약, 이보다 훨씬 더 큰 충돌에너지가 입력되면 상기 컬링플레이트(220)는 최종적으로 제1연장부(201a) 또는 제2연장부(202a)에서 탈락되거나 파단되면서 충돌에너지를 흡수하고, 그 후 전방패널(201) 전면부의 변형과 후방패널(202)이 변형되면서 에너지가 대거 흡수되는 것이다.If a collision energy much larger than this is input, the curling plate 220 is finally dropped or broken from the first extension portion 201a or the second extension portion 202a to absorb the collision energy, and then the front panel. The energy is absorbed as the front part is deformed and the rear panel 202 is deformed.

상술한 바와 같이 본 발명에 따른 자동차용 범퍼의 백빔은, 전방패널과 후방패널로 양분되어 차체길이 방향으로 슬립되도록 중첩되고 이 중첩부위에 밀납과 컬링플레이트를 통하여 전, 후방패널이 상호 결합되게 구성됨으로써, 저속 충돌시에는 상기 중첩부위의 전방에 봉입된 밀납이 파단되며 충격흡수가 이뤄지도록 하고 고속 충돌시에는 상기 밀납의 파단, 컬링플레이트 변형, 전방패널 변형, 후방패널 변형의 순차적 과정을 거쳐 충격흡수가 이루어지도록 하여 백빔에서의 충격흡수 능력을 극대화시키는 특유의 효과가 있다.As described above, the back beam of the bumper for automobiles according to the present invention is divided into a front panel and a rear panel so as to be slipped in the direction of the vehicle body, and the front and rear panels are coupled to each other through a beeswax and a curling plate at the overlapped portion. In this case, the beeswax encapsulated in front of the overlapping portion is broken and shock is absorbed in a low speed collision, and in a high impact impact, the bees are broken through a sequential process of breaking, curling plate deformation, front panel deformation and rear panel deformation. The absorption is made to have a unique effect of maximizing the shock absorption ability in the back beam.

Claims (3)

범퍼의 외피인 페이셔(40)의 내측에 마련된 에너지흡수부재(30)를 지지하며 차체(10)의 스테이(10a)에 장착되는 자동차용 범퍼의 백빔에 있어서,In the back beam of the bumper for automobiles which supports the energy absorbing member 30 provided inside the facer 40, which is the outer surface of the bumper, and is mounted on the stay 10a of the vehicle body 10, 후방으로 소정길이 연장된 제1연장부(201a)를 갖는 전방패널(201)과 전방으로 소정길이 연장된 제2연장부(202a)를 갖는 후방패널(202)로 구성되고, 상기 제1연장부(201a)와 제2연장부(202a)는 차체길이 방향으로 슬립가능하게 중첩되며, 그 중첩된 부위중 전방측은 밀납(210)으로 결합되고 후방측은 컬링플레이트(220)에 의해 결합된 것을 특징으로 하는 자동차용 범퍼의 백빔.And a front panel 201 having a first extension portion 201a extending a predetermined length to the rear and a rear panel 202 having a second extension portion 202a extending a predetermined length to the front, wherein the first extension portion 201a and the second extension part 202a are slidably overlapped in the vehicle body length direction, and the front side of the overlapped portion is coupled to the beeswax 210 and the rear side is coupled by the curling plate 220. Car back bumper. 제 1항에 있어서, 상기 밀납(210)으로 결합되는 부위는 차체길이 방향에 수직하게 홀(211)이 천공된 후 밀납이 봉입된 것을 특징으로 하는 자동차용 범퍼의 백빔.The back beam of the bumper for a vehicle according to claim 1, wherein the bead is joined to the beeswax 210 after the hole 211 is drilled perpendicular to the vehicle body length direction. 제 1항에 있어서, 상기 컬링플레이트(220)는 제1연장부(201a)의 하면과 제2연장부(202a)의 하면을 상호 결합시키도록 "S"자 형으로 된 것을 특징으로 하는 자동차용 범퍼의 백빔.The method of claim 1, wherein the curling plate 220 is an automobile characterized in that the "S" shaped to engage the lower surface of the first extension portion 201a and the lower surface of the second extension portion 202a mutually. Bumper back beam.
KR10-2001-0022361A 2001-04-25 2001-04-25 A Backbeam of Automobile Bumper KR100394948B1 (en)

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JPS58214443A (en) * 1982-06-05 1983-12-13 バイエリツシエ・モ−ト−レン・ウエルケ・アクチエンゲゼルシヤフト Bumper for automobile, particularly, passenger car
JPH0162153U (en) * 1987-10-15 1989-04-20
JPH0789455A (en) * 1993-09-21 1995-04-04 Nissan Motor Co Ltd Bumper reinforcing member installing structure and method
JPH07291062A (en) * 1994-04-26 1995-11-07 Nissan Diesel Motor Co Ltd Front bumper device
KR19980029625A (en) * 1996-10-26 1998-07-25 박병재 Bumper structures for vehicles
KR19980037417U (en) * 1996-12-17 1998-09-15 오상수 Shock Absorber Car Bumper
KR19980044378U (en) * 1996-12-26 1998-09-25 양재신 Automotive bumper with shock absorber
JPH10324204A (en) * 1997-05-23 1998-12-08 Nissan Motor Co Ltd Bumper attaching structure

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51120042U (en) * 1975-03-25 1976-09-29
JPS5737051U (en) * 1980-08-12 1982-02-26
JPS58214443A (en) * 1982-06-05 1983-12-13 バイエリツシエ・モ−ト−レン・ウエルケ・アクチエンゲゼルシヤフト Bumper for automobile, particularly, passenger car
JPH0162153U (en) * 1987-10-15 1989-04-20
JPH0789455A (en) * 1993-09-21 1995-04-04 Nissan Motor Co Ltd Bumper reinforcing member installing structure and method
JPH07291062A (en) * 1994-04-26 1995-11-07 Nissan Diesel Motor Co Ltd Front bumper device
KR19980029625A (en) * 1996-10-26 1998-07-25 박병재 Bumper structures for vehicles
KR19980037417U (en) * 1996-12-17 1998-09-15 오상수 Shock Absorber Car Bumper
KR19980044378U (en) * 1996-12-26 1998-09-25 양재신 Automotive bumper with shock absorber
JPH10324204A (en) * 1997-05-23 1998-12-08 Nissan Motor Co Ltd Bumper attaching structure

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