KR20120118276A - The crash box used a car - Google Patents

The crash box used a car Download PDF

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Publication number
KR20120118276A
KR20120118276A KR1020110035751A KR20110035751A KR20120118276A KR 20120118276 A KR20120118276 A KR 20120118276A KR 1020110035751 A KR1020110035751 A KR 1020110035751A KR 20110035751 A KR20110035751 A KR 20110035751A KR 20120118276 A KR20120118276 A KR 20120118276A
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KR
South Korea
Prior art keywords
crash box
vehicle
side member
bent
back beam
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KR1020110035751A
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Korean (ko)
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정운덕
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정운덕
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Priority to KR1020110035751A priority Critical patent/KR20120118276A/en
Publication of KR20120118276A publication Critical patent/KR20120118276A/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

Abstract

PURPOSE: A crash box for a vehicle is provided to prevent the deformation of a side member by installing a plate between the side member and the crash box. CONSTITUTION: A crash box for a vehicle comprises a crash box body(20) and a reinforcement(50). The crash box body is installed between a back beam(14) and a side member for absorbing impact. The ridges(21) and the gullies(22) of the crash box body are corrugated repetitively. The reinforcement is formed in a closed section symmetrical to an opening side and curved toward the inside of the crash box body. Protruded portions(51) and recessed portions(52) are formed in the whole body of the reinforcement.

Description

차량용 크래쉬박스{The crash box used a car}Crash Box for Vehicles {The crash box used a car}

본 발명은 차량용 크래쉬박스에 관한 것으로, 더 상세하게는 크래쉬박스의 내부로 추돌시 확관방향으로 변형되는 것을 방지함과 아울러 충격에 대한 변형량을 줄이고, 범퍼의 내구성은 물론 차량 전체의 안전성을 향상시킬 수 있도록 발명된 것이다.
The present invention relates to a crash box for a vehicle, and more particularly, to prevent deformation in the expansion direction when colliding into the crash box, to reduce the amount of deformation against impact, and to improve the durability of the bumper as well as the overall safety of the vehicle. It is invented to be.

일반적으로 자동차의 앞뒤에는 충돌 또는 추돌 사고 시 자체에 가해지는 충격에너지를 흡수하여 탑승자의 안전을 도모할 수 있도록 범퍼가 설치된다.In general, bumpers are installed at the front and rear of the car to absorb the impact energy applied to the vehicle in the event of a collision or collision to promote the safety of the occupants.

상기 범퍼(10)는 차체에 볼트 결합되는 범퍼 스테이와, 상기 범퍼 스테이의 끝부분에 용접되어 결합되는 백빔(14)과, 상기 백빔(14)의 외측면에 부착되어 차체에 가해지는 충격에너지를 흡수하는 업소버(15)와, 상기 업소버(15)가 감싸지도록 차체에 설치되어 차량의 외측에 노출되는 범퍼 커버(16) 등으로 구성된다.The bumper 10 includes a bumper stay bolted to a vehicle body, a back beam 14 welded to and coupled to an end of the bumper stay, and an impact energy applied to an outer surface of the back beam 14 to be applied to the vehicle body. And an absorber 15 to absorb, and a bumper cover 16 or the like installed on the vehicle body to surround the absorber 15 and exposed to the outside of the vehicle.

한편, 상기 범퍼와 차체 프레임 사이에는 저속 충돌 시 충격을 흡수하여, 차량의 손상을 최소화 할 수 있도록 크래쉬박스가 설치된다.Meanwhile, a crash box is installed between the bumper and the body frame to absorb shocks at low speed collisions and to minimize damage to the vehicle.

상기와 같은 종래 크래쉬박스는 내부가 빈 주름관 형상으로 성형되어, 추돌 시 주름이 오므려지면서 충격을 흡수하게 되는데, 최근에는 차량의 충돌안전성 확보와 주변장치를 보호하기 위한 구성이 제안되고 있는 실정이다.
The conventional crash box as described above is molded into a hollow corrugated tube shape, so that the pleats are collapsed when colliding, absorbing the shock, the situation is recently proposed to secure the collision safety of the vehicle and to protect the peripheral devices .

상기와 같은, 종래 차량용 크래쉬박스 구성은, 속이 빈 주름관 형상으로 형성되기 때문에 충돌시 충돌 에너지가 한번에 흡수되어 뭉개지거나 큰 반발력을 일으켜서 차량이 손상되기 쉬운 문제점이 있었다.As described above, the conventional crash box configuration for a vehicle has a problem in that the vehicle is easily damaged due to crushing or a large repulsion force due to absorption of collision energy at a time when a collision is formed in a hollow corrugated pipe shape.

즉, 크래쉬박스가 충격을 흡수하는 과정에서 충격 완충효과가 미약하여 사이드멤버의 함몰 또는, 확관 등의 변형이 발생되어 차체 전체의 내구성 및 탑승객의 안전성 역시 취약해지는 폐단이 있었다.That is, in the process of absorbing the shock of the crash box, the shock buffering effect is weak, so that the deformation of the side members, or expansion occurs, such as the end of the vehicle body durability and passenger safety was also weakened.

본 발명의 목적은, 차량용 크래쉬박스 구성에서 크래쉬박스의 내부로 확관방향으로의 변형방지수단을 형성하여 충돌 시 충돌에너지를 보다 효과적으로 분산 및 완화시킬 수 있는 차량용 크래쉬박스를 제공하는데 있다.An object of the present invention is to provide a crash box for a vehicle that can more effectively disperse and mitigate the collision energy in the event of a collision by forming a deformation preventing means in the expansion direction into the interior of the crash box in a crash box configuration for the vehicle.

본 발명의 다른 목적은, 크래쉬박스의 주변 구성품의 변형을 방지할 수 있는 차량용 크래쉬박스를 제공하는데 있다.Another object of the present invention is to provide a crash box for a vehicle that can prevent deformation of peripheral components of the crash box.

본 발명의 또 다른 목적은, 비교적 간단한 구성으로 크래쉬박스의 완충효과를 극대화시켜, 제품의 신뢰성 및 안전성을 증대시킬 수 있도록 한 차량용 크래쉬박스를 제공하는 데 있다.
Still another object of the present invention is to provide a crash box for a vehicle that can maximize the shock absorbing effect of the crash box with a relatively simple configuration and increase the reliability and safety of the product.

본 발명은 상기의 목적을 달성하기 위하여,In order to achieve the above object,

충돌 시 충격을 흡수할 수 있도록 백빔(14)과 사이드멤버(12) 사이에 설치되며, 일단이 개방된 폐공간을 갖도록 절곡하고, 길이방향으로 주름진 형상으로 산(21)과 골(22)이 반복 성형되는 크래쉬박스(20)와;It is installed between the back beam 14 and the side member 12 so as to absorb the impact during a collision, and one end is bent to have an open closed space, and the mountain 21 and the valley 22 are corrugated in the longitudinal direction. A crash box 20 repeatedly formed;

상기 크래쉬박스(20)의 개방면과 대칭된 폐단면에, 길이방향을 따라 몸체 내부를 향해 굴곡지게 성형하여, 몸체 전체가 볼록부(51)와 오목부(52)를 갖도록 형성하는 보강부(50)가 더 성형된다.Reinforcing part formed on the closed end surface symmetrical with the open surface of the crash box 20, bent toward the inside of the body along the longitudinal direction, so that the entire body has a convex portion 51 and a recess 52 ( 50) is further molded.

그리고, 상기 크래쉬박스(20)는, 몸체가 상호 대칭되는 두 개의 조합으로 형성되며, 상호 개방면이 맞닿는 양단부를 융착 접합시켜 일체로 구성한다.The crash box 20 is formed of two combinations of bodies symmetrical to each other, and is integrally formed by fusion-bonding both ends of which the open surfaces contact each other.

또, 상기 크래쉬박스(20)의 몸체는, 백빔(14)과 사이드멤버(12)의 사이에서 백빔(14) 방향으로 순차적으로 확장되는 주름관의 형상으로 성형하고, 몸체 개방면의 양단부에, 외측으로 절곡되어 이 절곡면을 맞대어 접합하는 맞대기판(30)이 더 형성시켜 달성한다.
In addition, the body of the crash box 20 is formed in the shape of a corrugated pipe that is sequentially extended in the direction of the back beam 14 between the back beam 14 and the side member 12, the outer side at both ends of the body opening surface It is achieved by further forming a butt substrate 30 that is bent to and bonded to the bent surface.

이러한 구조로 이루어진 본 발명에 의하면, 차량용 크래쉬박스는 비교적 간단한 구성으로 크래쉬박스로 가해지는 충돌에너지를 흡수함은 물론, 확관 방향으로 크게 변형되는 것을 방지 할 수 있다.According to the present invention having such a structure, the vehicle crash box can absorb a collision energy applied to the crash box with a relatively simple configuration, and can be prevented from being greatly deformed in the expansion direction.

따라서, 차체 안전성 및 내구성을 향상시킬 수 있다.Therefore, the vehicle body safety and durability can be improved.

또한, 크래쉬박스는 물론 사이드멤버와 크래쉬박스 사이에 플레이트가 설치되어 사이드멤버의 변형도 방지할 수 있다.In addition, the plate is installed between the side box and the crash box as well as the crash box can prevent the deformation of the side member.

그러므로, 제품의 신뢰성 및 탑승객의 안전성을 향상시킬 수 있는 매우 유용한 발명인 것이다.
Therefore, it is a very useful invention that can improve the reliability of the product and the safety of the passengers.

도 1은 본 발명이 적용된 차량용 크래쉬박스 설치 구성을 도시한 분해 사시도.
도 2는 본 발명인 차량용 크래쉬박스 구성에서 보강부가 내부로 굴곡진 형상을 도시한 사시도.
도 3은 본 발명인 차량용 크래쉬 박스의 정단면도.
도 4는 본 발명의 실시예인 차량용 크래쉬박스가 조합된 구성을 도시한 사시도.
도 5는 본 발명의 실시 예인 차량영 크래쉬박스의 정단면도.1 is an exploded perspective view showing a vehicle crash box installation configuration to which the present invention is applied.
Figure 2 is a perspective view showing a curved shape of the reinforcement portion in the present invention vehicle crash box configuration.
Figure 3 is a front sectional view of a crash box for a vehicle of the present invention.
Figure 4 is a perspective view showing a combination of a vehicle crash box which is an embodiment of the present invention.
5 is a front cross-sectional view of the vehicle crash box of an embodiment of the present invention.

이하, 첨부된 도면과 관련하여 상기 목적을 달성하기 위한 본 발명의 구성과 작동 례를 살펴보면 다음과 같다.Hereinafter, a configuration and an operation example of the present invention for achieving the above object with reference to the accompanying drawings are as follows.

본 발명인 차량용 크래쉬박스는, 크래쉬박스의 내부로 추돌시 확관방향으로 변형되는 것을 방지함과 아울러 충격에 대한 변형량을 줄이고, 범퍼의 내구성은 물론 차량 전체의 안전성을 향상시킬 수 있도록 발명된 것이다.The vehicle crash box of the present invention is invented to prevent deformation in the expansion direction when colliding into the crash box, and to reduce deformation amount for impact, and to improve the durability of the bumper as well as the safety of the entire vehicle.

상기 크래쉬박스(20)는, 스틸재로 일정 간격의 피치를 갖으며, 산(21)과 골(22)이 반복되는 주름판의 형상으로, 상부 또는 어느 일면이 개방된 상태로 다단 절곡시켜 성형하며, 백빔(14)과 사이드멤버(12) 사이에 설치된다.The crash box 20 is a steel material having a pitch of a predetermined interval, in the shape of a corrugated plate in which the peaks 21 and the valleys 22 are repeated, the upper or any one side is formed by bending in multiple stages. And is installed between the back beam 14 and the side member 12.

그리고, 이 크래쉬박스(20)는, 개방된 상부 또는 어느 일면의 대칭된 폐단면에 길이방향을 따라 몸체 내부를 향해 굴곡진 보강부(50)가 더 성형되어 구성한다.In addition, the crash box 20 is configured to be further formed by the reinforcement portion 50 bent toward the inside of the body in the longitudinal direction on the symmetrical closed end surface of the open top or any one surface.

상기 보강부(50)는, 주름판으로 형성된 크래쉬박스(20)의 강도를 향상시키기 위한 것으로, 이 보강부(50)에도 산(21)과 골(22)이 동일하게 형성된 상태에서 몸체 중앙으로 굴곡지게 성형시켜, 볼록부(51)와 오목부(52)가 구성된 것이다.The reinforcement part 50 is for improving the strength of the crash box 20 formed of a corrugated plate, and the reinforcement part 50 is also formed in the center of the body in the state in which the peaks 21 and the valleys 22 are formed in the same manner. The convex part 51 and the recessed part 52 are comprised by shape | molding to bend.

또, 상기 크래쉬박스(20)는 주름판을 절곡 성형해 구성되는 것으로, 제품 생산 및 작업속도를 향상시킬 수 있게 된다.In addition, the crash box 20 is formed by bending the corrugated plate, it is possible to improve the product production and work speed.

따라서, 보강부(50)는 충돌에 의해 크래쉬박스(20)가 주름 접힘 방향으로 변형될 때, 보강부(50)에 의해 확관 방향으로 터지면서 벌어지는 것을 방지하게 된다.Therefore, when the crash box 20 is deformed in the crease folding direction by the collision, the reinforcement part 50 prevents the reinforcement part 50 from popping out in the expansion direction by the reinforcement part 50.

또, 충돌에너지를 전체적으로 함께 흡수하여 완충효과를 증대시키게 된다.In addition, by absorbing the collision energy as a whole to increase the buffer effect.

한편, 상기의 크래쉬박스(20)는, 도 4에서와 같이 몸체가 상호 대칭되는 두 개의 조합을 갖고, 상호 맞닿는 양단부를 융착 접합시켜 일체로 구성할 수 있음을 밝혀둔다.On the other hand, the crash box 20, as shown in Figure 4, the body has two combinations symmetrical with each other, it will be found that it can be configured integrally by fusion-bonding both ends of the contact.

즉, 상기의 크래쉬박스(20)는 접합된 전체 형상이 속이 빈 주름관으로 산(21)과 골(22)이 반복 성형된 형상으로 제작하여 강도를 보강하는 결과로 충돌시 크래쉬박스(20)의 내충격력을 향상시킬 수 있는 것이다.That is, the crash box 20 is a hollow corrugated tube joined to the shape of the mountain 21 and the bone 22 is produced in a repeated molded shape as a result of reinforcing the strength of the crash box 20 during the collision Impact resistance can be improved.

이와 같이, 크래쉬박스(20)의 몸체에 볼록부(51)와 오목부(52)를 갖는 보강부(50)가 형성되고, 상호 대칭되게 접합한 주름관 형상의 크래쉬박스(20)도 몸체 내부의 보강부(50)에 의해 충돌에 의해 크래쉬박스(20)가 주름 접힘 방향으로 변형될 때, 확관 방향으로 터지면서 벌어지는 것을 방지하게 된다.As such, the reinforcement part 50 having the convex part 51 and the concave part 52 is formed in the body of the crash box 20, and the corrugated pipe-shaped crash box 20, which is symmetrically bonded to each other, is also formed inside the body. When the crash box 20 is deformed in the fold-folding direction by the collision by the reinforcing portion 50, it is prevented from bursting while expanding in the expansion direction.

또, 충돌에너지를 전체적으로 함께 흡수하여 완충효과를 더욱 증대시키게 된다.In addition, by absorbing the collision energy as a whole, the buffer effect is further increased.

그리고, 상기 크래쉬박스(20)의 몸체는, 백빔(14)과 사이드멤버(12)의 사이에서 백빔(14)방향으로 순차적으로 확장되는 주름관의 형상으로 성형할 수도 있다.In addition, the body of the crash box 20 may be molded in the shape of a corrugated pipe sequentially extending in the direction of the back beam 14 between the back beam 14 and the side member 12.

또, 상기 크래쉬박스(20)는, 몸체의 양단부가 외측으로 절곡되어, 이 절곡면이 맞대어져 접합되는 맞대기판(30)이 더 형성된다.In addition, the crash box 20, both ends of the body is bent to the outside, the bent surface is butted to form a butt substrate 30 to be bonded to each other.

따라서 도 5에서와 같이 맞대기판(30)도 평탄면을 갖거나 산(21)과 골(22)을 형성시켜, 상호 대칭된 상태에서도 맞대기판(30)이 상호 접촉된 상태를 갖고, 끝단부를 따라 융착 접합시켜 크래쉬박스(20)의 내충격력을 향상시키고, 제작 및 시공에 편리함을 주게 된다.Accordingly, as shown in FIG. 5, the butt substrate 30 also has a flat surface or forms a peak 21 and a valley 22, so that the butt substrate 30 is in contact with each other even in a symmetrical state. By fusion bonding accordingly, the impact resistance of the crash box 20 is improved, and convenience is given to manufacture and construction.

한편, 상기의 크래쉬박스(20)의 모서리부에는 모따기를 형성하여 성형성을 향상시키게 된다.On the other hand, by forming a chamfer in the corner portion of the crash box 20 to improve the formability.

또한, 크래쉬박스(20)와 사이드멤버(12)사이에는 도면에서 도시한 바와 같이 보강 플레이트(40)를 더 설치하여 충돌 시 크래쉬박스(20)의 끝단부와 사이드멤버(12)의 선단부가 확관 방향으로 병형되는 것도 방지할 수 있다.In addition, between the crash box 20 and the side member 12, as shown in the drawing further installed a reinforcing plate 40, the end of the crash box 20 and the front end of the side member 12 when the collision is expanded It can also prevent bottle shape in the direction.

이 보강 플레이트(40)는 크래쉬박스(20)와 사이드멤버(12) 사이에 개재한 후 함께 볼트와 너트에 의해 체결 고정시킨다.The reinforcing plate 40 is interposed between the crash box 20 and the side member 12 and then fastened together by bolts and nuts.

이러한, 본 발명은 충돌 시 발생가능한 주변 구성품의 변형 방지 및 크래쉬박스(20)를 비롯한 차체 전체의 내구성 및 안전성을 확보할 수 있는 것이다.Such, the present invention is to ensure the durability and safety of the entire vehicle body, including the deformation prevention and crash box 20 of the peripheral components that can occur during the crash.

이상에서 설명한 본 발명은 전술한 실시 예 및 도면에 의해 한정되는 것은 아니고, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 여러 가지 치환, 변형 및 변경이 가능함은 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에게 있어 명백할 것이다.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. It will be clear to those who have.

10 - 범퍼 20 - 크래쉬박스
50 - 보강부 51 - 볼록부
52 - 오목부10-Bumper 20-Crashbox
50-reinforcement 51-convex
52-recess

Claims (4)

충돌 시 충격을 흡수할 수 있도록 백빔(14)과 사이드멤버(12) 사이에 설치되며, 일단이 개방된 폐공간을 갖도록 절곡하고, 길이방향으로 주름진 형상으로 산(21)과 골(22)이 반복 성형되는 크래쉬박스(20)와;
상기 크래쉬박스(20)의 개방면과 대칭된 폐단면에, 길이방향을 따라 몸체 내부를 향해 굴곡지게 성형하여, 몸체 전체가 볼록부(51)와 오목부(52)를 갖도록 형성하는 보강부(50)가 더 성형됨을 특징으로 하는 차량용 크래쉬박스.
It is installed between the back beam 14 and the side member 12 so as to absorb the impact during a collision, and one end is bent to have an open closed space, and the mountain 21 and the valley 22 are corrugated in the longitudinal direction. A crash box 20 repeatedly formed;
Reinforcing part formed on the closed end surface symmetrical with the open surface of the crash box 20, bent toward the inside of the body along the longitudinal direction, so that the entire body has a convex portion 51 and a recess 52 ( Vehicle crash box characterized in that 50) is further molded.
청구항 1에 있어서, 상기 크래쉬박스(20)는, 몸체가 상호 대칭되는 두 개의 조합으로 형성되며, 상호 개방면이 맞닿는 양단부를 융착 접합시켜 일체로 구성함을 특징으로 하는 차량용 크래쉬박스.
The crash box of claim 1, wherein the crash box (20) is formed of a combination of two body symmetrical mutually, the vehicle crash box, characterized in that integrally configured by fusion-bonding both ends of the mutually open contact surface.
청구항 2에 있어서, 상기 크래쉬박스(20)의 몸체는, 백빔(14)과 사이드멤버(12)의 사이에서 백빔(14) 방향으로 순차적으로 확장되는 주름관의 형상으로 성형됨을 특징으로 하는 차량용 크래쉬박스.
The crashbox for a vehicle according to claim 2, wherein the body of the crash box 20 is formed in the shape of a corrugated pipe sequentially extending in the direction of the back beam 14 between the back beam 14 and the side member 12. .
청구항 2 또는 청구항 3에 있어서, 상기 크래쉬박스(20)는, 몸체 개방면의 양단부에, 외측으로 절곡되어 이 절곡면을 맞대어 접합하는 맞대기판(30)이 더 형성됨을 특징으로 하는 차량용 크래쉬박스.According to claim 2 or claim 3, The crash box 20, Crash box for a vehicle, characterized in that the opposite side of the body opening surface is bent to the outside to form a butt substrate 30 to be bonded to the bent surface.
KR1020110035751A 2011-04-18 2011-04-18 The crash box used a car KR20120118276A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110307018A (en) * 2019-07-16 2019-10-08 北京诚田恒业煤矿设备有限公司 A kind of non-uniform wall thickness constant-resistance energy absorption device
KR102071864B1 (en) * 2018-08-09 2020-01-31 주식회사 성우하이텍 Crash box for vehicles
CN112109650A (en) * 2020-09-28 2020-12-22 杭州获锡汽车部件有限公司 Anti-collision protection device for automobile backing and control method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102071864B1 (en) * 2018-08-09 2020-01-31 주식회사 성우하이텍 Crash box for vehicles
CN110307018A (en) * 2019-07-16 2019-10-08 北京诚田恒业煤矿设备有限公司 A kind of non-uniform wall thickness constant-resistance energy absorption device
CN110307018B (en) * 2019-07-16 2024-03-29 北京诚田恒业煤矿设备有限公司 Non-uniform wall thickness constant resistance energy absorbing device
CN112109650A (en) * 2020-09-28 2020-12-22 杭州获锡汽车部件有限公司 Anti-collision protection device for automobile backing and control method thereof
CN112109650B (en) * 2020-09-28 2021-11-09 重庆先锋智能科技有限公司 Anti-collision protection device for automobile backing and control method thereof

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