KR100727713B1 - Crash-box of automobile - Google Patents

Crash-box of automobile Download PDF

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Publication number
KR100727713B1
KR100727713B1 KR1020060016773A KR20060016773A KR100727713B1 KR 100727713 B1 KR100727713 B1 KR 100727713B1 KR 1020060016773 A KR1020060016773 A KR 1020060016773A KR 20060016773 A KR20060016773 A KR 20060016773A KR 100727713 B1 KR100727713 B1 KR 100727713B1
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KR
South Korea
Prior art keywords
crash box
vehicle
box body
crash
shock absorbing
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KR1020060016773A
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Korean (ko)
Inventor
이종우
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현대자동차주식회사
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Priority to KR1020060016773A priority Critical patent/KR100727713B1/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
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
    • B60R19/34—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type
    • 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
    • B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
    • B62D21/152—Front or rear frames
    • 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
    • B60R2019/1893—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 comprising a multiplicity of identical adjacent shock-absorbing means
    • 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
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B60R2019/242—Arrangements for mounting bumpers on vehicles on two vertical sleeves, e.g. on energy absorber ends
    • 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
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
    • B60R2019/262—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means with means to adjust or regulate the amount of energy to be absorbed

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Vibration Dampers (AREA)

Abstract

A crash box for a vehicle is provided to improve shock absorbing performance of the vehicle upon occurrence of vehicle collision without increasing the size of the crash box. A crash box for a vehicle, includes a crash box body(50), shock absorbing plates(60), and a crack protrusion(70). The crash box body is interposed between a bumper and a vehicle frame so as to absorb shock upon occurrence of vehicle crash. The crash box body is corrugated such that the crash box body is foldable. The shock absorbing plates are arranged in the crash box body. The crack protrusion is formed on a front frame(52) of the crash box body so that the shock absorbing plate is torn when the crash box body is folded.

Description

차량의 크래쉬 박스{Crash-Box of Automobile}Crash-Box of Automobile

도 1은 종래 기술에 따른 차량의 크래쉬 박스가 도시된 사시도이다.1 is a perspective view showing a crash box of a vehicle according to the prior art.

도 2는 종래 기술에 따른 차량의 크래쉬 박스의 분해 사시도이다.2 is an exploded perspective view of a crash box of a vehicle according to the prior art.

도 3은 본 발명에 따른 차량의 크래쉬 박스의 분해 사시도이다.3 is an exploded perspective view of a crash box of a vehicle according to the present invention.

도 4는 본 발명에 따른 차량의 크래쉬 박스의 충격 흡수 전 절개 단면도이다.Figure 4 is a cross-sectional view before the shock absorption of the crash box of the vehicle according to the present invention.

도 5는 본 발명에 따른 차량의 크래쉬 박스의 충격 흡수시 절개 단면도이다.5 is a cross-sectional view of the crash box of the vehicle according to the present invention during shock absorption.

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

본 발명은 차량의 크래쉬 박스에 관한 것으로서, 특히 차량의 충돌로 인해 변형될 때, 찢어지면서 충격량을 흡수할 수 있는 충격 흡수판이 구비된 차량의 크래쉬 박스에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crash box of a vehicle, and more particularly to a crash box of a vehicle provided with a shock absorbing plate capable of absorbing an impact amount while being torn when deformed due to a collision of the vehicle.

도 1은 종래 기술에 따른 차량의 크래쉬 박스가 도시된 사시도이고, 도 2는 종래 기술에 따른 차량의 크래쉬 박스의 분해 사시도이다.1 is a perspective view showing a crash box of a vehicle according to the prior art, Figure 2 is an exploded perspective view of a crash box of the vehicle according to the prior art.

일반적으로 자동차의 앞뒤에는 충돌 또는 추돌 사고시 차체에 가해지는 충격 에너지를 흡수하여 탑승자의 안전을 도모할 수 있도록 범퍼(2)가 설치된다. In general, a bumper 2 is installed at the front and rear of the vehicle to absorb the impact energy applied to the vehicle body in the event of a collision or a collision to promote the safety of the occupant.

상기 범퍼(2)는 차체에 볼트(B) 결합되는 범퍼 스테이(2a)와, 상기 범퍼 스테이(2a)의 끝부분에 용접되어 결합되는 범퍼 빔(2b)과, 상기 범퍼 빔(2b)의 외측면에 부착되어 차체에 가해지는 충격에너지를 흡수하는 업소버(2c)와, 상기 업소버(2c)가 감싸지도록 차체에 설치되어 차량의 외측에 노출되는 범퍼 커버(2d) 등으로 구성된다. The bumper 2 includes a bumper stay 2a that is bolted to the vehicle body B, a bumper beam 2b that is welded to and coupled to an end of the bumper stay 2a, and an outside of the bumper beam 2b. And an absorber 2c attached to the side to absorb shock energy applied to the vehicle body, and a bumper cover 2d installed on the vehicle body so as to surround the absorber 2c and exposed to the outside of the vehicle.

한편, 상기 범퍼(2)와 차체 프레임 사이에는 저속 충돌시 충격을 흡수하여 차량의 손상을 최소화할 수 있도록 크래쉬 박스(6)가 설치된다.Meanwhile, a crash box 6 is installed between the bumper 2 and the vehicle body frame so as to absorb a shock during a low-speed collision and minimize damage to the vehicle.

상기 크래쉬 박스(6)는 내부가 텅 비고 충돌방향으로 주름(6a)이 다수 형성됨으로써 오므려지면서 충격을 흡수한다. 이와 같은 크래쉬 박스(6)의 다수의 주름(6a)은 모두 동일하게 형성되고, 충돌방향을 따라 등피치 간격(P)으로 연속된다.The crash box 6 is empty inside and absorbs a shock while being retracted by forming a large number of wrinkles 6a in the collision direction. The plurality of wrinkles 6a of the crash box 6 are all formed in the same manner, and are continuous at equal pitch intervals P along the collision direction.

그러나, 상기한 바와 같은 종래 기술에 따른 차량의 크래쉬 박스(6)는 차량의 충돌시 차량의 충격 흡수량이 증대되게 할려면 그 크기가 커져야 되는 문제점이 있다.However, the crash box 6 of the vehicle according to the prior art as described above has a problem that the size must be increased in order to increase the amount of shock absorption of the vehicle when the vehicle crashes.

본 발명은 상기한 종래 기술의 문제점을 해결하기 위하여 안출된 것으로서, 주름이 형성된 크래쉬 박스 본체와, 상기 크래쉬 박스 본체의 내부에 상기 크래쉬 박스 본체의 접힘시 찢어질 수 있는 충격 흡수판이 구비됨으로써, 크기 변화없이 충격 흡수량이 향상될 수 있는 차량의 크래쉬 박스를 제공하는데 그 목적이 있다.The present invention has been made to solve the above-mentioned problems of the prior art, the size of the crash box body having wrinkles and the shock absorbing plate which can be torn during folding of the crash box body is provided in the inside of the crash box body, It is an object of the present invention to provide a crash box of a vehicle in which the shock absorbing amount can be improved without change.

상기한 과제를 해결하기 위한 본 발명에 따른 차량의 크래쉬 박스는 충돌시 충격을 흡수할 수 있도록 범퍼와 차체 프레임 사이에 설치되고 접힘 가능토록 다수의 주름이 형성된 크래쉬 박스 본체와; 상기 크래쉬 박스 본체의 내부에 구비된 충격 흡수판과; 상기 크래쉬 박스 본체에 설치되어 상기 크래쉬 박스 본체의 접힘시 상기 충격 흡수판을 찢을 수 있는 크랙 돌기를 포함하여 구성된 것을 특징으로 한다.The crash box of the vehicle according to the present invention for solving the above problems is installed between the bumper and the body frame so as to absorb the impact in the crash and the crash box body formed with a plurality of wrinkles to be folded; An impact absorbing plate provided inside the crash box body; It is installed on the crash box body is characterized in that it comprises a crack protrusion that can tear the shock absorbing plate when the crash box body is folded.

상기 충격 흡수판은 상기 크래쉬 박스 본체의 접힘방향으로 다수 개 구비된 것을 특징으로 한다.The shock absorbing plate is characterized in that a plurality provided in the folding direction of the crash box body.

상기 크랙 돌기는 상기 크랙 돌기의 끝으로 갈수록 점차 좁아지는 것을 특징으로 한다.The crack protrusions are gradually narrowed toward the ends of the crack protrusions.

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 3은 본 발명에 따른 차량의 크래쉬 박스의 분해 사시도이고, 도 4는 본 발명에 따른 차량의 크래쉬 박스의 충격 흡수 전 단면도이고, 도 5는 본 발명에 따른 차량의 크래쉬 박스의 충격 흡수시 단면도이다. 3 is an exploded perspective view of a crash box of a vehicle according to the present invention, Figure 4 is a cross-sectional view before the shock absorption of the crash box of the vehicle according to the invention, Figure 5 is a cross-sectional view of the crash box of the vehicle according to the present invention when shock absorption. to be.

본 발명에 따른 차량의 크래쉬 박스는 차량의 충돌시 충격을 흡수할 수 있도록 범퍼와 차체 프레임 사이에 설치되고 접힘 가능토록 다수의 주름(50')이 형성된 크래쉬 박스 본체(50)와, 상기 크래쉬 박스 본체(50)의 내부에 구비된 충격 흡수판(60)과, 상기 크래쉬 박스 본체(50)의 내부에 설치되어 상기 크래쉬 박스 본체(50)의 접힘시 상기 충격 흡수판(60)을 찢을 수 있는 크랙 돌기(70)를 포함하여 구성된다.The crash box of the vehicle according to the present invention is installed between the bumper and the vehicle frame so as to absorb the impact in the event of a vehicle crash box body 50 and a plurality of corrugations (50 ') formed to be foldable, and the crash box The shock absorbing plate 60 provided inside the main body 50 and the crash box main body 50 may be installed inside the crash box main body 50 to tear the shock absorbing plate 60 when the crash box main body 50 is folded. The crack protrusion 70 is comprised.

상기 크래쉬 박스 본체(50)는 상기 범퍼와 결합되는 전면 프레임(52)과, 상기 전면 프레임(52)과 전후방향으로 이격되어 차체 프레임과 결합되는 후면 프레임(54)과, 상기 전면 프레임(52)과 후면 프레임(54) 사이에 배치되고 상기 크래쉬 박스 본체(50)의 접힘이 가능토록 상기 주름(50')이 전후방향으로 다수 형성된 본체 프레임(56)으로 이루어진다.The crash box body 50 includes a front frame 52 coupled to the bumper, a rear frame 54 spaced apart from the front frame 52 in front and rear directions, and coupled to a vehicle body frame, and the front frame 52. And a main body frame 56 disposed between the rear frame 54 and the plurality of corrugations 50 'formed in the front-back direction so that the crash box main body 50 can be folded.

상기 충격 흡수판(60)은 상기 크래쉬 박스 본체(50)를 전후방향으로 구획토록 형성되고, 상기 크래쉬 박스 본체(50)의 접힘방향으로 다수 개 구비될 수 있다.The shock absorbing plate 60 may be formed to partition the crash box body 50 in the front and rear directions, and a plurality of shock absorbing plates 60 may be provided in the folding direction of the crash box body 50.

상기 크랙 돌기(70)는 상기 크래쉬 박스 본체(50)의 전면 프레임(52)으로부터 상기 크래쉬 박스 본체(50)의 내부를 향해 돌출된 구조로 구비된다.The crack protrusion 70 is provided to have a structure protruding toward the inside of the crash box body 50 from the front frame 52 of the crash box body 50.

상기 크랙 돌기(70)는 상기 충격 흡수판(60)이 용이하게 찢어질 수 있도록 상기 크랙 돌기(70)의 끝으로 갈수록 점차 좁아지는 구조로 구비된다.The crack protrusion 70 is provided with a structure that gradually narrows toward the end of the crack protrusion 70 so that the shock absorbing plate 60 can be easily torn.

상기와 같이 구성된 차량의 크래쉬 박스의 작용을 살펴보면, 다음과 같다.Looking at the operation of the crash box of the vehicle configured as described above, as follows.

차량의 충돌이 발생되면, 상기 크래쉬 박스 본체(50)의 주름(50')으로 인해 상기 크래쉬 박스 본체(50)가 전후방향으로 접혀지면서 충격 에너지를 흡수한다. 아울러, 상기 크래쉬 박스 본체(50)가 접혀지면서 상기 크랙 돌기(70)에 의해 상기 충격 흡수판(60)이 찢어지면서 충격 에너지를 2차적으로 흡수한다.When a collision of the vehicle occurs, the crash box body 50 is folded in the front and rear direction due to the wrinkles 50 ′ of the crash box body 50 to absorb impact energy. In addition, while the crash box body 50 is folded, the shock absorbing plate 60 is torn by the crack protrusion 70 to absorb shock energy secondarily.

상기와 같이 구성되고 작용되는 본 발명에 따른 차량의 크래쉬 박스는 주름이 형성된 크래쉬 박스 본체 내부에 상기 크래쉬 박스 본체의 접힘시 상기 크래쉬 박스 본체 내 크랙 돌기에 의해 찢어질 수 있는 충격 흡수판이 설치되기 때문에 크기의 변화없이 충격 흡수량이 증대될 수 있는 이점이 있다.Since the crash box of the vehicle according to the present invention configured and operated as described above has a shock absorbing plate which is torn by a crack protrusion in the crash box body when the crash box body is folded inside the crash box body in which wrinkles are formed. There is an advantage that the shock absorbing amount can be increased without changing the size.

Claims (3)

충돌시 충격을 흡수할 수 있도록 범퍼와 차체 프레임 사이에 설치되고 접힘 가능토록 다수의 주름이 형성된 크래쉬 박스 본체와;A crash box body installed between the bumper and the vehicle frame so as to absorb a shock during a collision, and having a plurality of corrugations formed therein; 상기 크래쉬 박스 본체의 내부에 구비된 충격 흡수판과;An impact absorbing plate provided inside the crash box body; 상기 크래쉬 박스 본체에 설치되어 상기 크래쉬 박스 본체의 접힘시 상기 충격 흡수판을 찢을 수 있는 크랙 돌기를 포함하여 구성된 것을 특징으로 하는 차량의 크래쉬 박스.The crash box of the vehicle, characterized in that it comprises a crack protrusion which is installed on the crash box body to tear the shock absorbing plate when the crash box body is folded. 제 1 항에 있어서,The method of claim 1, 상기 충격 흡수판은 상기 크래쉬 박스 본체의 접힘방향으로 다수 개 구비된 것을 특징으로 하는 차량의 크래쉬 박스.The crash absorbing plate of the crash box of the vehicle, characterized in that provided with a plurality in the folding direction of the crash box body. 제 1 항 또는 제 2 항에 있어서,The method according to claim 1 or 2, 상기 크랙 돌기는 상기 크랙 돌기의 끝으로 갈수록 점차 좁아지는 것을 특징으로 하는 차량의 크래쉬 박스.The crack protrusion of the vehicle, characterized in that the gradually narrower toward the end of the crack projection.
KR1020060016773A 2006-02-21 2006-02-21 Crash-box of automobile KR100727713B1 (en)

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Cited By (6)

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KR100916148B1 (en) * 2007-12-27 2009-09-08 주식회사 성우하이텍 Crash box in automotive bumper system
KR100932674B1 (en) 2008-03-24 2009-12-21 주식회사 성우하이텍 Bumper Stays for Cars
KR100932673B1 (en) 2008-03-24 2009-12-21 주식회사 성우하이텍 Car Crash Box
KR101005461B1 (en) 2008-08-26 2011-01-05 주식회사 성우하이텍 Crash box in automotive bumper system
KR20110051594A (en) * 2009-11-10 2011-05-18 주식회사 성우하이텍 Crash box in automotive bumper system
FR2980430A1 (en) * 2011-09-26 2013-03-29 Faurecia Bloc Avant Bumper beam e.g. front bumper beam, for car, has absorber plate comprising support portion projected on face of plate with respect to marginal portion, where marginal portion is extended from support portion to peripheral edge of plate

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100916148B1 (en) * 2007-12-27 2009-09-08 주식회사 성우하이텍 Crash box in automotive bumper system
KR100932674B1 (en) 2008-03-24 2009-12-21 주식회사 성우하이텍 Bumper Stays for Cars
KR100932673B1 (en) 2008-03-24 2009-12-21 주식회사 성우하이텍 Car Crash Box
KR101005461B1 (en) 2008-08-26 2011-01-05 주식회사 성우하이텍 Crash box in automotive bumper system
KR20110051594A (en) * 2009-11-10 2011-05-18 주식회사 성우하이텍 Crash box in automotive bumper system
KR101661099B1 (en) 2009-11-10 2016-09-30 주식회사 성우하이텍 Crash box in automotive bumper system
FR2980430A1 (en) * 2011-09-26 2013-03-29 Faurecia Bloc Avant Bumper beam e.g. front bumper beam, for car, has absorber plate comprising support portion projected on face of plate with respect to marginal portion, where marginal portion is extended from support portion to peripheral edge of plate

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