KR20190068939A - Bunper beam structure for vehicle and manufacturing method of the same - Google Patents

Bunper beam structure for vehicle and manufacturing method of the same Download PDF

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KR20190068939A
KR20190068939A KR1020170169216A KR20170169216A KR20190068939A KR 20190068939 A KR20190068939 A KR 20190068939A KR 1020170169216 A KR1020170169216 A KR 1020170169216A KR 20170169216 A KR20170169216 A KR 20170169216A KR 20190068939 A KR20190068939 A KR 20190068939A
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South Korea
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beam body
crash box
vehicle
box portion
bumper
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KR1020170169216A
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Korean (ko)
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KR102202379B1 (en
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박성훈
길용길
변계웅
정규현
강용한
김희준
이산호
이성현
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(주)엘지하우시스
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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
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0005Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fibre reinforcements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • 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
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/30Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3044Bumpers
    • 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

Abstract

The present invention relates to a bumper beam structure for a vehicle and a manufacturing method of the same. According to an embodiment of the present invention, the bumper beam structure for the vehicle comprises: a first beam body made from thermoplastic fiber composite materials to have a first crash box unit; and a second beam body engaged with the first beam body and made from thermoplastic fiber composite materials to have a second crash box unit. The crash box unit consists of a first and second crash box. According to the present invention, the first beam body and the second beam body of the bumper beam structure for the vehicle are formed by using two or more kinds of thermoplastic fiber composite materials, and the crash box unit is formed by engaging the first beam body with the second beam body, thereby maintaining high strength and hardness by the complementary action of the two or more kinds of thermoplastic fiber composite materials.

Description

차량용 범퍼 빔 구조체 및 그의 제조방법{BUNPER BEAM STRUCTURE FOR VEHICLE AND MANUFACTURING METHOD OF THE SAME}BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bumper beam structure for a vehicle,

본 발명은 차량용 범퍼 빔 구조체에 관한 것이고, 보다 구체적으로 2 이상의 열가소성 섬유복합소재로 이루어진 제1 빔바디와 제2 빔바디를 포함하고 크래시박스가 일체로 형성된 차량용 범퍼 빔 구조체와, 제2 빔바디에 제1 빔바디를 사출성형하여 1 빔바디, 제2 빔바디 및 크래시박스부를 일체로 형성시킴에 따라 생산성 및 결합성이 향상된 차량용 범퍼 빔 구조체의 제조방법에 관한 것이다.The present invention relates to a vehicle bumper beam structure, and more particularly to a vehicle bumper beam structure including a first beam body and a second beam body made of two or more thermoplastic fiber composite materials and having a crash box integrally formed thereon, To a method of manufacturing a bumper beam structure for a vehicle having improved productivity and coupling properties by integrally forming a single beam body, a second beam body, and a crash box portion by injection molding a first beam body.

일반적으로, 차량부품은 차량의 안전성 및 내구성을 고려하여 스틸소재로 이루어져 있다. Generally, vehicle parts are made of steel material in consideration of the safety and durability of the vehicle.

그러나 스틸소재로 이루어질 경우 차량의 무게가 증가되고, 하이브리드 및 전기차로 구현될 경우, 베터리의 소모에 큰 영향을 미치는 문제점을 지니고 있다.However, when the vehicle is made of a steel material, the weight of the vehicle is increased, and when the hybrid vehicle and the electric vehicle are implemented, there is a problem that the consumption of the battery greatly affects.

또한, 차량부품을 제조하는 제조방법에 있어서 프레스 공법과 사출공법이 사용되고 있으나, 공정이 매우 복잡하여 생산성이 저하될 뿐만 아니라, 단계적 공정으로 인해 불량 발생율이 높은 문제점을 지니고 있다.In addition, although the pressing method and the injection method are used in the manufacturing method for manufacturing the vehicle parts, the manufacturing process is very complicated and not only the productivity is lowered, but also the defective occurrence rate is high due to the stepwise process.

한편, 차량부품 중에서 종래기술에 따른 범퍼는 차체 전방 및 후방에 설치되어 차량 또는 외부 물체와 충돌시 충격을 흡수하여 차체가 받는 충격량을 감소시킴으로써, 차체 및 탑승자를 보호할 뿐 아니라 후드 및 엔진룸에 장착된 엔진과 각종 장치 등을 보호하는 역할을 한다.The bumper according to the prior art is mounted on the front and rear of the vehicle body to absorb the shock when the vehicle collides with the vehicle or an external object to reduce the amount of impact that the vehicle body receives, thereby protecting the vehicle body and the passenger, It protects the mounted engine and various devices.

그리고 범퍼는 외피를 이루는 페이셔와, 페이셔의 형상을 유지시키면서 충돌시 충격력을 완화시키는 충돌 흡수부재와, 탄성변형 또는 소성변형을 통해 충돌에너지를 흡수하는 백빔으로 구성된다.The bumper is composed of a fascia forming the sheath, a collision absorbing member for reducing the impact force at the time of collision while maintaining the shape of the fascia, and a back beam absorbing impact energy through elastic deformation or plastic deformation.

또한, 백빔에는 다시 크래시박스가 설치됨으로써 충돌시 충격에 견딜 수 있는 높은 에너지 흡수량을 얻게 된다.In addition, since the back beam is provided with the crash box again, a high energy absorption amount capable of withstanding the impact upon collision is obtained.

그러나 종래의 범퍼 백빔 조립체는 각 부품이 별도로 제작된 후 이를 다시 조립하는 공정으로 조립공수가 증가하게 되고, 제조 단가의 상승 원인 중 하나가 된다.However, the conventional bumper back beam assembly is a process of separately assembling each component and then reassembling it, which increases the number of assemblies and becomes one of the causes of increase in manufacturing cost.

또한, 상기 범퍼 백빔 조립체는 각 부품이 금속재질로 형성되어 차체의 중량을 가중시킬 뿐만 아니라, 충돌시 충격을 흡수해주는 효율이 떨어지는 문제점이 있다.In addition, the bumper back beam assembly has a problem in that each part is formed of a metal material, which not only increases the weight of the vehicle body but also lowers the efficiency of absorbing shocks at the time of a collision.

본 발명의 일 관점은 경량으로 이루어짐과 동시에 높은 강도 및 경도를 갖는 차량용 범퍼 빔 구조체를 제공하기 위한 것이다.One aspect of the present invention is to provide a vehicle bumper beam structure that is lightweight and has high strength and hardness.

본 발명의 다른 관점은 2종 이상의 열가소성 섬유복합소재를 이용하여 차량용 범퍼 빔 구조체의 제1 빔바디와, 제2 빔바디를 형성시키고, 제1 빔바디와 제2 빔바디의 결합에 의해 크래시박스부를 형성시킴에 따라, 2종 이상의 열가소성 섬유복합소재의 상보적 작용으로 높은 강도와 경도를 유지할 수 있는 차량용 범퍼 빔 구조체를 제공하기 위한 것이다.Another aspect of the present invention is a method for forming a first beam body and a second beam body of a vehicle bumper beam structure by using two or more types of thermoplastic fiber composite materials and forming a first beam body and a second beam body by a combination of a first beam body and a second beam body, Which is capable of maintaining high strength and hardness by complementary action of two or more kinds of thermoplastic fiber composite materials.

본 발명의 또 다른 관점은 제2 빔바디에 제1 빔바디를 사출성형하여 1 빔바디, 제2 빔바디 및 크래시박스부를 일체로 형성시킴에 따라 생산성 및 결합성이 향상된 차량용 범퍼 빔 구조체를 제공하기 위한 것이다.Another aspect of the present invention is to provide a vehicle bumper beam structure improved in productivity and coupling by integrally forming a single beam body, a second beam body, and a crash box portion by injection molding a first beam body into a second beam body .

본 발명의 일실시예에 따른 차량용 범퍼 빔 구조체는 열가소성 섬유복합소재로 이루지고, 제1 크래시박스부가 형성된 제1 빔바디와, 상기 제1 빔바디에 결합되고, 열가소성 섬유복합소재로 이루어지고 제2 크래시박스부가 형성된 제2 빔바디를 포함하고, 상기 제1 크래시박스부와 상기 제2 크래시박스부가 결합되어 크래시박스부가 형성된다. A bumper beam structure for a vehicle according to an embodiment of the present invention includes a first beam body formed of a thermoplastic fiber composite material and having a first crash box portion, a second beam body coupled to the first beam body, And a second beam body formed with a second crash box part, wherein the first crash box part and the second crash box part are combined to form a crash box part.

또한, 차량용 범퍼 빔 구조체에 있어서, 상기 제1 크래시박스부는 상기 제2 빔바디가 결합되는 방향으로 돌출형성된 차체 지지부와, 상기 제2 크래시박스부 수용되는 제2 크래시박스 수용부가 형성된다. In addition, in the automotive bumper beam structure, the first crash box portion is formed with a body support portion formed to protrude in a direction in which the second beam body is engaged, and a second crash box accommodating portion accommodating the second crash box portion.

또한, 차량용 범퍼 빔 구조체에 있어서, 상기 제1 크래시박스부에는 제1 토잉 후크 삽입홀이 형성되고, 상기 제2 크래시박스부에는 제2 토잉 후크 삽입홀이 형성되고, 상기 제1 토잉 후크 삽입홀과 상기 제2 토잉 후크 삽입홀은 동축으로 위치된다. Also, in the vehicle bumper beam structure, a first toe hook insertion hole is formed in the first crash box portion, a second toe hook insertion hole is formed in the second crash box portion, And the second toe hook insertion hole are coaxially positioned.

또한, 차량용 범퍼 빔 구조체에 있어서, 상기 제1 빔바디는 열가소성 올레핀(TPO: Thermo Plastic Olefin)수지로 이루어지고, 상기 제2 빔바디는 연속섬유 강화 열가소성수지(CFT: Continuous Fiber reinforced Thermoplastic)로 이루어질 수 있다. In addition, in the automotive bumper beam structure, the first beam body is made of thermoplastic olefin (TPO) resin, and the second beam body is made of a continuous fiber reinforced thermoplastic (CFT) .

본 발명의 일실시예에 따른 차량용 범퍼 빔 구조체의 제조방법은 제2 빔바디 소재를 프레스 성형하여 제2 빔바디를 형성시키는 제2 빔바디 형성단계와, 상기 제2 빔 바디에 제1 빔바디 소재를 사출성형하여 상기 제2 빔바디에 상기 제1 빔바디를 결합시키는 제1 빔바디 사출성형 단계와, 상기 제1 빔바디 사출성형 단계를 통해 일체화된 제1 빔바디와 제2 빔바디를 추출하는 차량용 범퍼 빔 구조체 추출단계를 포함한다. A method of manufacturing a bumper beam structure for a vehicle according to an embodiment of the present invention includes a second beam body forming step of forming a second beam body by press molding a second beam body material, A first beam body injection molding step of injection-molding a material to couple the first beam body to the second beam body; and a second beam body injection molding step of forming a first beam body and a second beam body integrated through the first beam- And extracting the vehicle bumper beam structure to be extracted.

또한, 차량용 범퍼 빔 구조체의 제조방법에 있어서, 제1 빔바디 사출성형 단계는 상기 제2 빔바디를 사출금형에 삽입하고, 제1 빔바디 소재를 상기 제2 빔바디에 접하도록 제공하고, 제1 빔바디 형상으로 사출성형한다. In addition, in the method of manufacturing a bumper beam structure for a vehicle, the first beam body injection molding step inserts the second beam body into the injection mold, and provides the first beam body material to contact the second beam body, 1 beam body shape.

또한, 차량용 범퍼 빔 구조체의 제조방법에 있어서, 상기 제2 빔바디 형성단계는 제2 크래시박스부가 적어도 일측단부에 형성된 제2 빔바디의 형상을 형성한다.Further, in the method for manufacturing a bumper beam structure for a vehicle, the second beam body forming step forms a shape of a second beam body formed at at least one end of the second crash box part.

또한, 차량용 범퍼 빔 구조체의 제조방법에 있어서, 상기 제1 빔바디 형성단계는 상기 제2 크래시박스부에 대응되는 제1 크래시박스부가 적어도 일측단부에 형성된 제1 빔바디의 형상을 형성한다.  Also, in the method for manufacturing a bumper beam structure for a vehicle, the first beam body forming step forms a shape of a first beam body formed at at least one end of the first crash box part corresponding to the second crash box part.

또한, 차량용 범퍼 빔 구조체의 제조방법에 있어서, 상기 제1 빔바디는 열가소성 올레핀(TPO)수지로 이루어지고, 상기 제2 빔바디는 연속섬유 강화 열가소성수지(CFT: Continuous Fiber reinforced Thermoplastic)로 이루어질 수 있다. Also, in the method for manufacturing a bumper beam structure for a vehicle, the first beam body may be made of a thermoplastic olefin (TPO) resin, and the second beam body may be made of a continuous fiber reinforced thermoplastic (CFT) have.

기타 실시 예들의 구체적인 사항들은 상세한 설명 및 도면들에 포함되어 있다.The details of other embodiments are included in the detailed description and drawings.

본 발명에 의하면 2종 이상의 열가소성 섬유복합소재를 이용하여 차량용 범퍼 빔 구조체의 제1 빔바디와, 제2 빔바디를 형성시키고, 제1 빔바디와 제2 빔바디의 결합에 의해 크래시박스부를 형성시킴에 따라, 2종 이상의 열가소성 섬유복합소재의 상보적 작용으로 높은 강도와 경도를 유지할 수 있는 차량용 범퍼 빔 구조체를 얻을 수 있다.According to the present invention, a first beam body and a second beam body of the automotive bumper beam structure are formed by using two or more kinds of thermoplastic fiber composite materials, and a crash box portion is formed by combining the first beam body and the second beam body It is possible to obtain a vehicle bumper beam structure capable of maintaining high strength and hardness by the complementary action of two or more kinds of thermoplastic fiber composite materials.

또한, 본 발명에 의하면 제2 빔바디에 제1 빔바디를 사출성형하여 1 빔바디, 제2 빔바디 및 크래시박스부를 일체로 형성시킴에 따라 생산성 및 결합성이 향상된 차량용 범퍼 빔 구조체의 제조방법을 얻을 수 있다. According to the present invention, there is provided a manufacturing method of a bumper beam structure for a vehicle having an improved productivity and a coupling property by integrally forming a single beam body, a second beam body and a crash box part by injection molding a first beam body on a second beam body Can be obtained.

본 발명의 기술적 사상의 실시예는, 구체적으로 언급되지 않은 다양한 효과를 제공할 수 있다는 것이 충분히 이해될 수 있을 것이다. It will be appreciated that embodiments of the technical idea of the present invention can provide various effects not specifically mentioned.

도 1은 본 발명의 일실시예에 따른 차량용 범퍼 빔 구조체의 개략적인 사시도이다.
도 2는 도 1에 도시한 차량용 범퍼 빔 구조체의 개략적인 분해사시도이다.
도 3은 도 1에 도시한 차량용 범퍼 빔 구조체의 개략적인 A-A' 단면도이다.
도 4는 본 발명의 일실시예에 따른 차량용 범퍼 빔 구조체의 제조방법을 개략적으로 도시한 순서도이다.
1 is a schematic perspective view of a vehicle bumper beam structure according to an embodiment of the present invention.
Fig. 2 is a schematic exploded perspective view of the automotive bumper beam structure shown in Fig. 1. Fig.
3 is a schematic AA 'sectional view of the automotive bumper beam structure shown in FIG.
4 is a flowchart schematically showing a method of manufacturing a bumper beam structure for a vehicle according to an embodiment of the present invention.

본 발명의 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술되어 있는 실시예를 참조하면 명확해질 것이다. 그러나 본 발명은 여기서 설명되는 실시예들에 한정되지 않고 다른 형태로 구체화될 수도 있다. 오히려, 여기서 소개되는 실시예들은 개시된 내용이 철저하고 완전해질 수 있도록 그리고 당업자에게 본 발명의 사상이 충분히 전달될 수 있도록 하기 위해 제공되는 것이다. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

본 출원에서 사용한 용어는 단지 특정한 실시예를 설명하기 위해 사용된 것으로, 본 발명을 한정하려는 의도가 아니다. 단수의 표현은 문맥상 명백하게 다르게 뜻하지 않는 한, 복수의 표현을 포함한다. 본 출원에서, "포함하다" 또는 "가지다" 등의 용어는 명세서상에 기재된 특징, 숫자, 단계, 동작, 구성요소, 부분품 또는 이들을 조합한 것이 존재함을 지정하려는 것이지, 하나 또는 그 이상의 다른 특징들이나 숫자, 단계, 동작, 구성요소, 부분품 또는 이들을 조합한 것들의 존재 또는 부가 가능성을 미리 배제하지 않는 것으로 이해되어야 한다.The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a part or a combination thereof is described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

다르게 정의되지 않는 한, 기술적이거나 과학적인 용어를 포함해서 여기서 사용되는 모든 용어들은 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에 의해 일반적으로 이해되는 것과 동일한 의미가 있다. 일반적으로 사용되는 사전에 정의되어 있는 것과 같은 용어들은 관련 기술의 문맥상 가지는 의미와 일치하는 의미가 있는 것으로 해석되어야 하며, 본 출원에서 명백하게 정의하지 않는 한, 이상적이거나 과도하게 형식적인 의미로 해석되지 않는다.Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be construed as ideal or overly formal in meaning unless explicitly defined in the present application Do not.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세하게 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 일실시예에 따른 차량용 범퍼 빔 구조체의 개략적인 사시도이고, 도 2는 도 1에 도시한 차량용 범퍼 빔 구조체의 개략적인 분해사시도이다.FIG. 1 is a schematic perspective view of a bumper beam structure for a vehicle according to an embodiment of the present invention, and FIG. 2 is a schematic exploded perspective view of the bumper beam structure for a vehicle shown in FIG.

도시한 바와 같이, 차량용 범퍼 빔 구조체(1000)는 제1 빔바디(1100)와 제2 빔바디(1200)를 포함하고, 크래시박스부(1110,1210)가 형성된다.As shown, the automotive bumper beam structure 1000 includes a first beam body 1100 and a second beam body 1200, and crash box portions 1110 and 1210 are formed.

보다 구체적으로, 제1 빔바디(1100)와 제2 빔바디(1200)는 차량용 범퍼의 빔바디를 형성한다. 그리고 크래시박스(Crashbox)는 제1 빔바디(1100)와 제2 빔바디(1200)가 결합되어 차량용 범퍼 빔 구조체(1000)에 일체로 형성된다.More specifically, the first beam body 1100 and the second beam body 1200 form the beam body of the automotive bumper. The first beam body 1100 and the second beam body 1200 are combined to form a crush box integrally with the automotive bumper beam structure 1000.

이를 위해, 제1 빔바디(1100)의 일측단부에는 제1 크래시박스부(1110)가 형성되고, 제2 빔바디(1200)의 일측단부에는 제2 크래시박스부(1210)가 형성된다.To this end, a first crash box part 1110 is formed at one end of the first beam body 1100, and a second crash box part 1210 is formed at one end of the second beam body 1200.

그리고, 제1 빔바디(1100)와 제2 빔바디가 결합될 경우, 제1 크래시박스부(1110)와 제2 크래시박스부(1210)가 결합되어 크래시박스부가 형성된다.When the first beam body 1100 and the second beam body are coupled, the first crash box portion 1110 and the second crash box portion 1210 are coupled to form a crash box portion.

또한, 제1 크래시박스부(1110)는 차체 지지부(1112)와 제2 크래시박스부 수용부(도 3에 1113으로 도시함)가 형성된다.In addition, the first crash box portion 1110 is formed with a body support portion 1112 and a second crash box portion receiving portion (denoted by 1113 in FIG. 3).

그리고 제2 크래시박스부 수용부(1113)에는 제2 크래시박스부(1210)가 삽입된 상태로 수용되고, 차체 지지부(1112)는 제2 빔바디(1200)가 결합되는 방향으로 돌출형성되고, 차체에 지지되어 외부의 충력을 댐핑된 상태로 차체에 전달하기 위한 것이다.The second crash box portion 1112 is received in the second crash box portion receiving portion 1113 while the second crash box portion 1210 is inserted into the second crash box portion receiving portion 1113. The vehicle body supporting portion 1112 is protruded in a direction in which the second beam body 1200 is engaged, And is for supporting the external impact to the vehicle body in a damped state.

그리고 차량용 범퍼 빔 구조체(1000)는 일측단부에 크래쉬박스부가 형성되고 타측단부에 토잉 후크 결합부가 형성될 수 있다.The vehicle bumper beam structure 1000 may have a crash box portion at one end and a toe hook coupling portion at the other end.

이를 위해, 차량용 범퍼 빔 구조체(1000)는 제1 크래시박스부(1110)에는 제1 토잉 후크 삽입홀(1111)이 형성되고, 제2 크래시박스부(1210)에는 제2 토잉 후크 삽입홀(1211)이 형성될 수 있다.To this end, the vehicle bumper beam structure 1000 is formed with a first toe hook insertion hole 1111 in the first crash box portion 1110 and a second toe hook insertion hole 1211 in the second crash box portion 1210 May be formed.

또한, 제2 토잉 후크 삽입홀(1211)은 제1 토잉 후크 삽입홀(1111)에 대응되도록 형성되고, 제1 토잉 후크 삽입홀(1111)과 제2 토잉 후크 삽입홀(1211)은 동축으로 위치되도록 형성된다. The second toe hook insertion hole 1211 is formed so as to correspond to the first toe hook insertion hole 1111 and the first toe hook insertion hole 1111 and the second toe hook insertion hole 1211 are formed coaxially .

그리고 토잉 후크 삽입홀(1211)은 토잉 후크가 삽입되고 결합되어, 토잉 후크 결합부를 차량용 범퍼 빔 구조체(1000)에 일체로 형성시키기 위한 것이다.The toe hook insertion hole 1211 is for inserting and joining the toe hook into the toe hook insertion hole 1211 to integrally form the toe hook coupling portion on the vehicle bumper beam structure 1000.

또한, 제1 빔바디(1100)는 열가소성 올레핀(TPO)수지로 이루어진다.In addition, the first beam body 1100 is made of a thermoplastic olefin (TPO) resin.

그리고 제2 빔바디(1200)는 연속섬유 강화 열가소성수지(CFT: Continuous Fiber reinforced Thermoplastic)로 이루어진다.The second beam body 1200 is made of a continuous fiber reinforced thermoplastic (CFT).

상기한 바와 같이 이루어짐에 따라, 본 발명의 일실시예에 따른 차량용 범퍼 빔 구조체(1000)는 열가소성 올레핀(TPO)수지로 이루어진 제1 빔바디(1100)와 연속섬유 강화 열가소성수지(CFT)로 이루어진 제2 빔바디(1200)가 결합되어 일체로 이루어짐에 따라 경량으로 구현됨과 동시에 강성이 증대되어 충돌성능이 향상된다. As described above, the bumper beam structure for a vehicle 1000 according to an embodiment of the present invention includes a first beam body 1100 made of a thermoplastic olefin (TPO) resin and a continuous fiber reinforced thermoplastic resin (CFT) Since the second beam body 1200 is combined with the first beam body 1200, the second beam body 1200 is light in weight and the rigidity is increased, thereby improving the collision performance.

도 4는 본 발명의 일실시예에 따른 차량용 범퍼 빔 구조체의 제조방법을 개략적으로 도시한 순서도이다.4 is a flowchart schematically showing a method of manufacturing a bumper beam structure for a vehicle according to an embodiment of the present invention.

도시한 바와 같이, 차량용 범퍼 빔 구조체의 제조방법은 제2 빔바디 형성단계(S1100), 제1 빔바디 사출성형 단계(S1200) 및 차량용 범퍼 빔 구조체 추출단계(S1300)를 포함한다. As shown, the method for manufacturing a vehicle bumper beam structure includes a second beam body forming step (S1100), a first beam body injection molding step (S1200), and a vehicle bumper beam structure extracting step (S1300).

보다 구체적으로, 제2 빔바디 형성단계(S1100)는 제2 빔바디 소재를 프레스 성형하여 제2 빔바디를 형성시키는 단계이다.More specifically, the second beam body forming step S1100 is a step of forming the second beam body by press-molding the second beam body material.

또한, 제2 빔바디는 연속섬유 강화 열가소성수지(CFT: Continuous Fiber reinforced Thermoplastic)로 이루어질 수 있다.In addition, the second beam body may be made of a continuous fiber reinforced thermoplastic (CFT).

그리고 연속섬유 강화 열가소성수지(CFT)를 수평(0°) 및 수직(90°) 방향으로 순차적으로 적층하고, 프레스로 가압되어 제2 빔바디를 형성시킨다.Then, a continuous fiber reinforced thermoplastic resin (CFT) is sequentially laminated in the horizontal (0 °) and vertical (90 °) directions and pressed by a press to form a second beam body.

다음으로 제1 빔바디 사출성형 단계(S1200)는 제2 빔바디 형성단계(S1100)를 통해 형성된 제2 빔바디에 제1 빔바디 소재를 사출성형하여 제2 빔바디에 제1 빔바디를 결합시키는 단계이다.Next, the first beam body injection molding step S1200 may include injecting and molding a first beam body material into a second beam body formed through the second beam body forming step S1100 to combine the first beam body with the second beam body .

보다 구체적으로, 제2 빔바디를 사출금형에 삽입하고, 제1 빔바디 소재를 제2 빔바디에 접하도록 제공하고, 제1 빔바디 형상으로 사출성형한다.More specifically, a second beam body is inserted into an injection mold, a first beam body material is provided in contact with the second beam body, and injection molded in the form of a first beam body.

또한, 제1 빔바디 소재는 열가소성 올레핀(TPO)수지로 이루어진다.Also, the first beam body material is made of a thermoplastic olefin (TPO) resin.

다음으로 차량용 범퍼 빔 구조체 추출단계(S1300)는 제1 빔바디 사출성형 단계(S1200)를 통해 일체로 형성된 차량용 범퍼 빔 구조체를 사출금형으로부터 추출하는 단계이다. Next, the vehicle bumper beam structure extraction step S1300 is a step of extracting the automotive bumper beam structure integrally formed through the first beam body injection molding step S1200 from the injection mold.

이상, 첨부된 도면을 참조하여 본 발명의 바람직한 일 실시예를 설명하였지만, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 본 발명이 그 기술적 사상이나 필수적인 특징을 변경하지 않고서 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다. 그러므로 이상에서 기술한 일 실시예는 모든 면에서 예시적인 것이며 한정적이 아닌 것으로 이해해야만 한다.While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood that the invention may be practiced. It is therefore to be understood that one embodiment described above is illustrative in all aspects and not restrictive.

1000: 차량용 범퍼 빔 구조체 1100: 제1 빔바디
1110: 제1 크래시박스부 1111: 제1 토잉 후크 삽입홀
1112: 차체 지지부 1113: 제2 크래시박스부 수용부
1200: 제2 빔바디 1210: 제2 크래시박스부
1211: 토잉 후크 삽입홀
1000: vehicle bumper beam structure 1100: first beam body
1110: first crash box part 1111: first toe hook insertion hole
1112: a vehicle body supporting portion 1113: a second crash box portion accommodating portion
1200: second beam body 1210: second crash box part
1211: Towing hook insertion hole

Claims (9)

열가소성 섬유복합소재로 이루지고, 제1 크래시박스부가 형성된 제1 빔바디; 및
상기 제1 빔바디에 결합되고, 열가소성 섬유복합소재로 이루어지고 제2 크래시박스부가 형성된 제2 빔바디를 포함하고,
상기 제1 크래시박스부와 상기 제2 크래시박스부가 결합되어 크래시박스부가 형성된
차량용 범퍼 빔 구조체.
A first beam body made of a thermoplastic fiber composite material and having a first crash box part; And
And a second beam body coupled to the first beam body, the second beam body being formed of a thermoplastic fiber composite material and having a second crash box portion,
The first crash box portion and the second crash box portion are coupled to each other to form a crash box portion
Automotive bumper beam structure.
제 1 항에 있어서,
상기 제1 크래시박스부는
상기 제2 빔바디가 결합되는 방향으로 돌출형성된 차체 지지부와,
상기 제2 크래시박스부 수용되는 제2 크래시박스 수용부가 형성된
차량용 범퍼 빔 구조체.
The method according to claim 1,
The first crash box portion
A body support portion formed to protrude in a direction in which the second beam body is coupled,
The second crash box housing portion accommodated in the second crash box portion is formed
Automotive bumper beam structure.
제 1 항에 있어서,
상기 제1 크래시박스부에는 제1 토잉 후크 삽입홀이 형성되고, 상기 제2 크래시박스부에는 제2 토잉 후크 삽입홀이 형성되고, 상기 제1 토잉 후크 삽입홀과 상기 제2 토잉 후크 삽입홀은 동축으로 위치된
차량용 범퍼 빔 구조체.
The method according to claim 1,
The first crashing box portion is formed with a first toe hook insertion hole, the second crashing box portion is formed with a second toe hook insertion hole, the first toe hook insertion hole and the second toe hook insertion hole Coaxially
Automotive bumper beam structure.
제 1 항에 있어서,
상기 제1 빔바디는 열가소성 올레핀(TPO)수지로 이루어지고,
상기 제2 빔바디는 연속섬유 강화 열가소성수지(CFT: Continuous Fiber reinforced Thermoplastic)로 이루어진
차량용 범퍼 빔 구조체.
The method according to claim 1,
The first beam body is made of a thermoplastic olefin (TPO) resin,
The second beam body is made of a continuous fiber reinforced thermoplastic (CFT)
Automotive bumper beam structure.
제2 빔바디 소재를 프레스 성형하여 제2 빔바디를 형성시키는 제2 빔바디 형성단계;
상기 제2 빔 바디에 제1 빔바디 소재를 사출성형하여 상기 제2 빔바디에 상기 제1 빔바디를 결합시키는 제1 빔바디 사출성형 단계; 및
상기 제1 빔바디 사출성형 단계를 통해 일체화된 제1 빔바디와 제2 빔바디를 추출하는 차량용 범퍼 빔 구조체 추출단계를 포함하는
차량용 범퍼 빔 구조체 제조방법.
A second beam body forming step of forming a second beam body by press molding a second beam body material;
A first beam body injection molding step of injecting and molding a first beam body material into the second beam body to couple the first beam body to the second beam body; And
And extracting a first beam body and a second beam body integrated through the first beam body injection molding step
A method for manufacturing a bumper beam structure for a vehicle.
제 5 항에 있어서,
제1 빔바디 사출성형 단계는
상기 제2 빔바디를 사출금형에 삽입하고, 제1 빔바디 소재를 상기 제2 빔바디에 접하도록 제공하고, 제1 빔바디 형상으로 사출성형하는
차량용 범퍼 빔 구조체 제조방법.
6. The method of claim 5,
The first beam body injection molding step
Inserting the second beam body into an injection mold, providing a first beam body material in contact with the second beam body, and injection molding the first beam body into a first beam body shape
A method for manufacturing a bumper beam structure for a vehicle.
제 5 항에 있어서,
상기 제2 빔바디 형성단계는
제2 크래시박스부가 적어도 일측단부에 형성된 제2 빔바디의 형상을 형성하는
차량용 범퍼 빔 구조체 제조방법.
6. The method of claim 5,
The second beam body forming step
The second crash box portion forms the shape of the second beam body formed at least at one end
A method for manufacturing a bumper beam structure for a vehicle.
제 7 항에 있어서,
상기 제1 빔바디 형성단계는
상기 제2 크래시박스부에 대응되는 제1 크래시박스부가 적어도 일측단부에 형성된 제1 빔바디의 형상을 형성하는
차량용 범퍼 빔 구조체 제조방법.
8. The method of claim 7,
The first beam body forming step
A first crash box portion corresponding to the second crash box portion forms a shape of a first beam body formed at one end portion
A method for manufacturing a bumper beam structure for a vehicle.
제 5 항에 있어서,
상기 제1 빔바디는 열가소성 올레핀(TPO)수지로 이루어지고,
상기 제2 빔바디는 연속섬유 강화 열가소성수지(CFT: Continuous Fiber reinforced Thermoplastic)로 이루어진
차량용 범퍼 빔 구조체 제조방법.
6. The method of claim 5,
The first beam body is made of a thermoplastic olefin (TPO) resin,
The second beam body is made of a continuous fiber reinforced thermoplastic (CFT)
A method for manufacturing a bumper beam structure for a vehicle.
KR1020170169216A 2017-12-11 2017-12-11 Bunper beam structure for vehicle and manufacturing method of the same KR102202379B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005502521A (en) * 2001-09-12 2005-01-27 ゼネラル・エレクトリック・カンパニイ Bumper beam and bumper assembly including bumper beam
KR20160012611A (en) * 2014-07-24 2016-02-03 주식회사 성우하이텍 Stay for vehicles and bumper beam unit comprising the sam
JP2016088147A (en) * 2014-10-30 2016-05-23 本田技研工業株式会社 Bumper beam for automobile

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005502521A (en) * 2001-09-12 2005-01-27 ゼネラル・エレクトリック・カンパニイ Bumper beam and bumper assembly including bumper beam
KR20160012611A (en) * 2014-07-24 2016-02-03 주식회사 성우하이텍 Stay for vehicles and bumper beam unit comprising the sam
JP2016088147A (en) * 2014-10-30 2016-05-23 本田技研工業株式会社 Bumper beam for automobile

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