KR20200081531A - Front Bumper and Front Side Member Module - Google Patents

Front Bumper and Front Side Member Module Download PDF

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Publication number
KR20200081531A
KR20200081531A KR1020180169265A KR20180169265A KR20200081531A KR 20200081531 A KR20200081531 A KR 20200081531A KR 1020180169265 A KR1020180169265 A KR 1020180169265A KR 20180169265 A KR20180169265 A KR 20180169265A KR 20200081531 A KR20200081531 A KR 20200081531A
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South Korea
Prior art keywords
front bumper
side member
front side
crush box
bumper
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KR1020180169265A
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Korean (ko)
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KR102145486B1 (en
Inventor
박상필
홍종빈
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서진산업 주식회사
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Priority to KR1020180169265A priority Critical patent/KR102145486B1/en
Publication of KR20200081531A publication Critical patent/KR20200081531A/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
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/03—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by material, e.g. composite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • 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
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/008—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of light alloys, e.g. extruded
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3044—Bumpers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
    • B60R2019/1813—Structural beams therefor, e.g. shock-absorbing made of metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
    • B60R2019/1833—Structural beams therefor, e.g. shock-absorbing made of plastic material
    • 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
    • B60R2019/1886—Bumper fascias and fastening means therefor

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Manufacturing & Machinery (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The present invention relates to a front bumper and a front side member module and, more specifically, to a front bumper and a front side member module, which can reduce the weight of a vehicle body while maintaining stiffness of the vehicle body, and improve workability. To this end, the front bumper is manufactured by injecting a GMT material into high strength aluminum, and the front side member is manufactured of the high strength aluminum. Moreover, the front bumper and a crush box and the front side member and the crush box are coupled to each other by a self-piercing rivet or a flow drill screw.

Description

프런트범퍼 및 프런트사이드멤버 모듈{Front Bumper and Front Side Member Module}Front Bumper and Front Side Member Module

본 발명은 프런트범퍼 및 프런트사이드멤버 모듈에 관한 것으로, 특히 프런트범퍼 및 프런트사이드멤버 모듈을 경량화시키면서도 강성을 유지할 수 있는 프런트범퍼 및 프런트사이드멤버 모듈에 관한 것이다.The present invention relates to a front bumper and a front side member module, and more particularly, to a front bumper and a front side member module capable of maintaining rigidity while reducing the weight of the front bumper and front side member modules.

일반적으로 차체의 프런트범퍼 및 프런트사이드멤버는 전방충돌시, 그 충격을 흡수하는 완충 수단이다.In general, the front bumper and the front side member of the vehicle body are buffer means for absorbing the impact in the event of a front collision.

프런트범퍼와 프런트사이드멤버는 크러시박스를 통해 서로 연결된다.The front bumper and front side members are connected to each other through a crush box.

이러한 종래의 프런트범퍼 및 프런트사이드멤버 모듈이 '한국공개특허공보 제10-2014-0148066호'에 제시되어 있다.Such a conventional front bumper and front side member module is presented in'Korean Patent Publication No. 10-2014-0148066'.

이러한 종래의 프런트범퍼 및 프런트사이드멤버 모듈은 통상 스틸재질로 제작되어 차체의 하중이 높아진다는 문제점이 있다.These conventional front bumpers and front side member modules are usually made of a steel material, and there is a problem in that the load of the vehicle body is increased.

프런트범퍼와 크러시박스를 볼팅결합할 때 너트를 프런트범퍼 내부에 넣어 볼트와 체결하여야 하므로 조립이 어렵다는 단점이 있다.When bolting the front bumper and the crush box, the nut has to be inserted into the front bumper and fastened with a bolt.

또한 종래의 프런트사이드멤버가 '한국등록특허공보 제10-0929528호'에 제시되어 있다.In addition, a conventional front side member is proposed in'Korean Registered Patent Publication No. 10-0929528'.

'한국등록특허공보 제10-0929528호'의 프론트 사이드 멤버 어셈블리는 여러 부품으로 구성되어 있어 전체적인 하중이 증가하고, 조립이 복잡해진다는 단점이 있다.The front side member assembly of'Korea Registered Patent Publication No. 10-0929528' is composed of several parts, which increases the overall load and has a disadvantage of assembly complexity.

한국공개특허공보 제10-2014-0148066호Korean Patent Publication No. 10-2014-0148066 한국등록특허공보 제10-0929528호Korean Registered Patent Publication No. 10-0929528

본 발명은 전술한 문제점을 해결하기 위하여 안출된 것으로, 프런트범퍼를 이종소재로 제작하고 프런트사이드멤버를 일체형으로 제작하여 차체를 경량화시키고, 재질이 서로 다른 프런트범퍼와 크러시박스 및 프런트사이드멤버와 크러시박스를 너트 없이 결합할 수 있는 프런트범퍼 및 프런트사이드멤버 모듈을 제공하는 데 그 목적이 있다.The present invention has been devised to solve the above-mentioned problems, and the front bumper is made of different materials, and the front side member is integrally manufactured to reduce the weight of the vehicle body, and the front bumper and crush box and the front side member of different materials are crushed. The aim is to provide a front bumper and front side member module that can be used to join the box without a nut.

전술한 목적을 달성하기 위한 본 발명의 프런트범퍼는 알루미늄재질로 프레스성형되는 내부프런트범퍼와, 상기 내부프런트범퍼 외측에 플라스틱 수지로 인서트 사출성형되는 외부프런트범퍼로 이루어져 차량의 폭방향으로 길게 형성되는 것을 특징으로 한다.The front bumper of the present invention for achieving the above object consists of an inner front bumper that is press-molded with an aluminum material, and an outer front bumper that is injection-molded with a plastic resin on the outside of the inner front bumper, and is formed long in the vehicle width direction. It is characterized by.

상기 프런트범퍼는 상기 프런트범퍼의 양측 후방에 결합되는 스틸재질의 제1크러시박스를 더 포함하고, 상기 제1크러시박스는 상기 프런트범퍼의 상면 일부 및 하면 일부를 감쌀 수 있는 제1연장부를 포함하고, 상기 제1크러시박스는 상기 제1연장부와 상기 프런트범퍼가 접촉하는 부분에 셀프피어싱리벳 또는 플로우드릴스크류 중 하나에 의해 결합되는 것을 특징으로 할 수 있다.The front bumper further includes a first crush box made of steel that is coupled to both rear sides of the front bumper, and the first crush box includes a first extension portion that can cover a part of the upper and lower surfaces of the front bumper. , The first crush box may be characterized in that the first extension portion and the front bumper are contacted by one of a self-piercing rivet or a flow drill screw.

상기 내부프런트범퍼의 알루미늄재질은 두께 2.0mm의 5000계열의 고강도 알루미늄이고, 상기 외부프런트범퍼의 플라스틱 수지는 3.0mm로 성형되는 GMT이고, 상기 제1크러시박스의 스틸재질은 두께 2.0mm의 590급 고강도강인 것을 특징으로 할 수 있다.The aluminum material of the inner front bumper is 5000 series of high-strength aluminum with a thickness of 2.0 mm, the plastic resin of the outer front bumper is GMT molded into 3.0 mm, and the steel material of the first crush box is 590 grade with a thickness of 2.0 mm. It can be characterized by high strength steel.

전술한 목적을 달성하기 위한 본 발명의 프런트사이드멤버는 알루미늄재질로 압축성형 후 핫블로우 포밍되어 일체형으로 제작되고, 차량의 길이방향으로 길게 한 쌍으로 형성되는 것을 특징으로 한다.The front side member of the present invention for achieving the above object is characterized in that it is formed of a single piece formed by being integrally formed by compression molding with an aluminum material, followed by hot blow forming, and formed in a long pair in the vehicle's longitudinal direction.

상기 프런트사이드멤버의 내부에는 차량의 길이 방향으로 관통되게 내부공간이 형성되고, 상기 프런트사이드멤버는 상기 프런트사이드멤버의 전방에 결합되는 스틸재질의 제2크러시박스를 더 포함하고, 상기 제2크러시박스는 상기 내부공간의 측면에 끼워지는 제2연장부를 포함하고, 상기 제2크러시박스는 상기 제2연장부와 상기 프런트사이드멤버가 접촉하는 부분에 셀프피어싱리벳 또는 플로우드릴스크류 중 하나에 의해 결합되는 것을 특징으로 할 수 있다.An interior space is formed inside the front side member to penetrate the vehicle in the longitudinal direction, and the front side member further includes a second crush box made of steel coupled to the front side of the front side member, and the second crush. The box includes a second extension portion that is fitted to the side of the interior space, and the second crush box is coupled to one of the self-piercing rivets or flow drill screws in a portion in contact with the second extension portion and the front side member. It can be characterized by being.

상기 프런트사이드멤버의 알루미늄재질은 두께 3.0mm의 5000계열의 고강도 알루미늄이고, 상기 제2크러시박스의 스틸재질은 두께 2.0mm의 590급 고강도강인 것을 특징으로 할 수 있다.The aluminum material of the front side member may be characterized in that it is a high strength aluminum of 5000 series with a thickness of 3.0 mm, and the steel material of the second crush box is 590 grade high strength steel with a thickness of 2.0 mm.

전술한 목적을 달성하기 위한 본 발명의 프런트범퍼 및 프런트사이드멤버 모듈은 알루미늄재질로 프레스성형되는 내부프런트범퍼와, 상기 내부프런트범퍼 외측에 플라스틱 수지로 인서트 사출성형되는 외부프런트범퍼로 이루어져 차량의 폭방향으로 길게 형성되는 프런트범퍼와, 알루미늄재질로 압축성형 후 핫블로우 포밍되어 일체형으로 제작되고, 차량의 길이방향으로 길게 한 쌍으로 형성되는 프런트사이드멤버와, 상기 프런트범퍼는 상기 프런트범퍼의 양측 후방에 결합되는 스틸재질의 제1크러시박스 및 상기 프런트사이드멤버는 상기 프런트사이드멤버의 전방에 결합되는 스틸재질의 제2크러시박스를 포함하고, 상기 제1크러시박스는 상기 프런트범퍼의 상면 일부 및 하면 일부를 감쌀 수 있는 제1연장부를 포함하고, 상기 제1크러시박스는 상기 제1연장부와 상기 프런트범퍼가 접촉하는 부분에 셀프피어싱리벳 또는 플로우드릴스크류 중 하나에 의해 결합되고, 상기 프런트사이드멤버의 내부에는 차량의 길이 방향으로 관통되게 내부공간이 형성되고, 상기 제2크러시박스는 상기 내부공간의 측면에 끼워지는 제2연장부를 포함하고, 상기 제2크러시박스는 상기 제2연장부와 상기 프런트사이드멤버가 접촉하는 부분에 셀프피어싱리벳 또는 플로우드릴스크류 중 하나에 의해 결합되는 것을 특징으로 한다.The front bumper and the front side member module of the present invention for achieving the above object is composed of an inner front bumper that is press-molded with an aluminum material, and an outer front bumper that is injection-molded with a plastic resin outside the inner front bumper. The front bumper is formed in a lengthwise direction, and is compressed into aluminum and then hot-blow-formed to be integrally formed, and the front side members are formed in a pair in the lengthwise direction of the vehicle, and the front bumpers are located on both sides of the front bumper. The first crush box made of steel coupled to the front side member and the front side member include a second crush box made of steel coupled to the front side of the front side member, and the first crush box includes a part and a lower surface of the front bumper It includes a first extension that can cover a part, the first crush box is coupled by one of a self-piercing rivet or a flow drill screw to the portion in contact with the first extension and the front bumper, the front side member An interior space is formed inside the vehicle so as to penetrate in the longitudinal direction of the vehicle, and the second crush box includes a second extension part fitted to the side of the interior space, and the second crush box includes the second extension part and the It is characterized in that the front side member is joined by one of a self-piercing rivet or a flow drill screw.

본 발명의 프런트범퍼 및 프런트사이드멤버 모듈에 따르면 다음과 같은 효과가 있다.According to the front bumper and front side member module of the present invention has the following effects.

프런트범퍼 및 프런트사이드멤버를 고강도 알루미늄으로 제작함으로써, 강성을 동등하게 유지하면서도 필요한 철판의 두께를 줄일 수 있어 모듈을 경량화할 수 있다.By manufacturing the front bumper and the front side member from high-strength aluminum, the required thickness of the steel plate can be reduced while maintaining the same rigidity, so that the module can be made lighter.

프런트사이드멤버를 압출성형을 통해 일체형으로 제작함으로써, 부품수를 감소시켜 차체를 경량화할 수 있다.By manufacturing the front side member integrally through extrusion molding, the number of parts can be reduced to make the vehicle body lighter.

프런트사이드멤버를 핫블로우 포밍으로 제작하여, 성형성을 확보하고 설계 자유도가 향상될 수 있다.By manufacturing the front side member by hot blow forming, it is possible to secure formability and improve design freedom.

프런트범퍼를 고강도 알루미늄에 GMT를 사출하여 제작함으로써, 강성을 동등하게 유지하면서도 모듈을 경량화할 수 있다.By manufacturing the front bumper by injecting GMT into high-strength aluminum, the module can be made lightweight while maintaining equal stiffness.

프런트범퍼와 크러시박스를 셀프피어싱리벳 또는 플로우드릴스크류를 사용하여 결합함으로써, 프런트범퍼와 크러시박스의 재질이 서로 달라도 결합이 가능하고, 셀프피어싱리벳 또는 플로우드릴스크류가 삽입되는 반대방향으로 너트를 결합할 필요가 없어 조립이 용이해지고, 프런트범퍼 및 크러시박스에 미리 구멍을 뚫을 필요가 없어 조립과정이 단순해진다.By combining the front bumper and the crush box using self-piercing rivets or flow drill screws, it is possible to combine the front bumper and the crush box with different materials, and the nut is coupled in the opposite direction where the self-piercing rivets or flow drill screws are inserted. It is easy to assemble because there is no need to do it.

프런트범퍼와 크러시박스 사이의 결합부가 프런트범퍼의 후면이 아닌 상면 및 하면에 형성되게 함으로써, 크러시박스의 내부가 아닌 크러시박스의 외부에서 상기 결합부를 형성할 수 있어 조립성이 개선된다.By forming the coupling portion between the front bumper and the crush box on the upper and lower surfaces rather than the rear surface of the front bumper, the coupling portion can be formed outside the crush box, not inside the crush box, thereby improving assembly.

도 1은 본 발명의 바람직한 실시예에 따른 프런트범퍼 및 프런트사이드멤버 모듈의 정면 사시도.
도 2는 본 발명의 바람직한 실시예에 따른 프런트범퍼 및 프런트사이드멤버(우측) 모듈의 정면 분해 사시도.1 is a front perspective view of a front bumper and front side member module according to a preferred embodiment of the present invention.
Figure 2 is a front exploded perspective view of the front bumper and front side member (right) module according to a preferred embodiment of the present invention.

이하, 본 발명의 바람직한 실시예를 첨부도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

여기서 사용되는 전문용어는 단지 특정 실시예를 언급하기 위한 것이며, 본 발명을 한정하는 것은 의도하지 않는다. 여기서 사용되는 단수 형태들은 문구들이 이와 명백히 반대의 의미를 나타내지 않는 한 복수 형태들도 포함한다.The terminology used herein is only to refer to a specific embodiment, and is not intended to limit the invention. The singular forms used herein include plural forms unless the phrases clearly indicate the opposite.

명세서에 사용되는 "포함하는"의 의미는 특정 특성, 영역, 정수, 단계, 동작, 요소 및/또는 성분을 구체화하며, 다른 특정 특성, 영역, 정수, 단계, 동작, 요소 및/또는 군의 존재나 부가를 제외시키는 것은 아니다.As used herein, the meaning of “comprising” embodies specific properties, regions, integers, steps, actions, elements and/or components, and the presence of other specific properties, areas, integers, steps, actions, elements and/or groups It does not exclude me.

본 발명의 바람직한 실시예에서 전후방향은 자동차의 길이방향이고, 좌우방향은 자동차의 폭방향이고, 상하방향은 자동차의 상하방향이다.In a preferred embodiment of the present invention, the front-rear direction is the longitudinal direction of the vehicle, the left-right direction is the width direction of the vehicle, and the vertical direction is the vertical direction of the vehicle.

도 1 내지 도 2에 도시된 바와 같이, 본 발명의 바람직한 실시예에 따른 프런트범퍼 및 프런트사이드멤버 모듈은 프런트범퍼(100)와, 프런트사이드멤버(200)와, 프런트범퍼(100)의 좌우양측 후방에 결합되는 제1크러시박스(150)와, 프런트사이드멤버(200)의 전방에 결합되고 제1크러시박스(150)와 결합되는 제2크러시박스(250)를 포함한다.1 to 2, the front bumper and the front side member module according to a preferred embodiment of the present invention include a front bumper 100, a front side member 200, and left and right sides of the front bumper 100. It includes a first crush box 150 coupled to the rear, and a second crush box 250 coupled to the front of the front side member 200 and coupled to the first crush box 150.

프런트범퍼(100)는 차량의 폭방향을 따라 좌우방향으로 길게 형성된다.The front bumper 100 is formed long in the left and right directions along the width direction of the vehicle.

프런트범퍼(100)는 좌우양측이 후방으로 휘어진 형태로 형성된다.The front bumper 100 is formed in a form in which left and right sides are bent rearward.

프런트범퍼(100)의 내부에는 좌우방향으로 관통된 공간이 형성된다.Inside the front bumper 100, a space penetrated in the left and right directions is formed.

프런트범퍼(100)는 내부프런트범퍼와, 상기 내부프런트범퍼의 외측에 인서트성형되는 외부프런트범퍼로 이루어진다.The front bumper 100 includes an inner front bumper and an outer front bumper that is insert-molded on the outside of the inner front bumper.

프런트범퍼(100)는 이종소재로 제작된다.The front bumper 100 is made of different materials.

프런트범퍼(100)의 내부프런트범퍼는 알루미늄재질로 제작되고, 프런트범퍼(100)의 외부프런트범퍼는 플라스틱 수지로 제작된다. 이로 인해 알루미늄재질 단독으로 제작했을 때보다 약한 강도의 알루미늄 재질을 사용하여도, 같은 강성을 유지하면서 알루미늄재질의 두께를 줄일 수 있다. 또한, 알루미늄재질의 비중보다 GMT의 비중이 낮기 때문에 모듈이 경량화 된다.The inner front bumper of the front bumper 100 is made of aluminum, and the outer front bumper of the front bumper 100 is made of plastic resin. For this reason, even when an aluminum material having a weaker strength than that produced by the aluminum material alone is used, the thickness of the aluminum material can be reduced while maintaining the same rigidity. In addition, since the specific gravity of GMT is lower than that of the aluminum material, the module becomes lighter.

프런트범퍼(100)의 내부프런트범퍼의 알루미늄재질은 두께 2.0mm의 5000급의 고강도 알루미늄인 것이 바람직하다. The aluminum material of the inner front bumper of the front bumper 100 is preferably a high-strength aluminum having a thickness of 2.0 mm and a grade of 5000.

프런트범퍼(100)의 외부프런트범퍼의 플라스틱 수지는 GMT(Glass Fiber Reinforced Thermoplastics)재질이고, 두께 3.0mm로 성형되는 것이 바람직하다.The plastic resin of the outer front bumper of the front bumper 100 is a GMT (Glass Fiber Reinforced Thermoplastics) material, and is preferably molded to a thickness of 3.0 mm.

프런트범퍼(100)의 내부프런트범퍼는 프레스성형된다.The inner front bumper of the front bumper 100 is press-molded.

프런트범퍼(100)의 외부프런트범퍼는 프런트범퍼(100)의 내부프런트범퍼 외면에 사출성형된다. 즉, 프런트범퍼(100)의 내부프런트범퍼는 프런트범퍼(100)의 외부프런트범퍼에 의해 덮인다.The outer front bumper of the front bumper 100 is injection molded on the outer surface of the inner front bumper of the front bumper 100. That is, the inner front bumper of the front bumper 100 is covered by the outer front bumper of the front bumper 100.

프런트사이드멤버(200)는 차량의 길이방향을 따라 전후방향으로 길게 형성된다.The front side member 200 is formed long in the front-rear direction along the longitudinal direction of the vehicle.

프런트사이드멤버(200)는 전후방향 및 상하방향으로 연장되어 형성되는 중심면을 기준으로 좌측과 우측에 각각 대칭되게 쌍으로 형성된다.The front side members 200 are formed in pairs symmetrically on the left and right sides, respectively, with respect to the center surface formed by extending in the front-rear direction and the vertical direction.

프런트사이드멤버(200)는 후방이 아래쪽으로 휘어진 형태로 형성된다.The front side member 200 is formed in a shape in which the rear side is bent downward.

프런트사이드멤버(200)의 내부에는 전후방향으로 관통된 공간이 형성된다.A space penetrated in the front-rear direction is formed inside the front side member 200.

프런트사이드멤버(200)는 알루미늄재질로 제작된다.The front side member 200 is made of aluminum.

프런트사이드멤버(200)의 알루미늄재질은 두께 3.0mm의 5000급의 고강도 알루미늄인 것이 바람직하다. The aluminum material of the front side member 200 is preferably a high-strength aluminum with a thickness of 3.0mm and a grade of 5000.

프런트사이드멤버(200)는 압출성형을 통해 제작 된다. 이로 인해 프런트사이드멤버(200)는 일체형으로 제작되어 용접 공정이 축소되고, 부품수가 감소하여 제작 과정이 단순해진다. 또한, 보강부재가 따로 설치되지 않아 모듈이 경량화 된다.The front side member 200 is manufactured through extrusion molding. Due to this, the front side member 200 is manufactured as an integral type, thereby reducing the welding process and reducing the number of parts, thereby simplifying the manufacturing process. In addition, since the reinforcing member is not separately installed, the module is lightweight.

프런트사이드멤버(200)는 압출성형 후 핫블로우 포밍 과정을 거친다. 이로 인해 단순히 압출성형을 하는 것보다 성형성이 확보되고 설계 자유도가 향상된다. The front side member 200 undergoes a hot blow forming process after extrusion molding. As a result, formability is secured and design freedom is improved rather than simply extruding.

제1크러시박스(150)는 스틸재질로 제작된다.The first crush box 150 is made of steel.

제1크러시박스(150)의 스틸재질은 590급의 고강도강이고, 두께는 2.0mm인 것이 바람직하다. The steel material of the first crush box 150 is 590 grade high strength steel, and the thickness is preferably 2.0 mm.

제1크러시박스(150)는 차량의 길이방향을 따라 형성된다.The first crash box 150 is formed along the longitudinal direction of the vehicle.

제1크러시박스(150)의 내부에는 전후방향으로 관통된 공간이 형성된다.A space penetrated in the front-rear direction is formed in the first crush box 150.

제1크러시박스(150)는 제1크러시박스(150)의 상측 및 하측의 전방으로 돌출되게 형성되는 제1연장부(151)를 포함한다.The first crush box 150 includes a first extension portion 151 formed to protrude upwardly and downwardly of the first crush box 150.

제1연장부(151)의 내측 폭은 프런트범퍼(100)의 높이와 유사하거나 보다 크게 형성된다. 이로 인해 제1크러시박스(150)는 각각의 제1연장부(151)가 프런트범퍼(100)의 상면 및 하면에 접하게 프런트범퍼(100)의 후방에 끼워질 수 있다.The inner width of the first extension portion 151 is formed to be similar to or larger than the height of the front bumper 100. Due to this, the first crush box 150 may be fitted to the rear of the front bumper 100 such that each first extension portion 151 is in contact with the upper and lower surfaces of the front bumper 100.

프런트범퍼(100)와 제1연장부(151)가 맞닿는 제1접촉부(101) 위쪽에서 셀프피어싱리벳 또는 플로우드릴스크류를 사용하여, 프런트범퍼(100)에 제1크러시박스(150)를 결합할 수 있다.The first crush box 150 is coupled to the front bumper 100 by using a self-piercing rivet or a flow drill screw from the top of the first contact portion 101 where the front bumper 100 and the first extension portion 151 abut. Can.

그로 인해 프런트범퍼(100) 및 제1크러시박스(150)에 체결부에 미리 천공을 하지 않아도 결합이 가능해지므로 제작 공정이 단순화된다.As a result, the manufacturing process is simplified because the front bumper 100 and the first crush box 150 can be combined without having to be drilled in advance.

셀프피어싱리벳 또는 플로우드릴스크류는 외측에서부터 스틸재질의 제1크러시박스(150), 플라스틱재질의 프런트범퍼(100) 및 알루미늄재질의 프런트범퍼(100)와 차례대로 결합한다.The self-piercing rivet or flow drill screw is sequentially coupled from the outside to the first crush box 150 made of steel, the front bumper 100 made of plastic, and the front bumper 100 made of aluminum.

셀프피어싱리벳 또는 플로우드릴스크류는 셀프피어싱리벳 또는 플로우드릴스크류가 삽입되는 반대방향으로 너트를 추가로 결합할 필요가 없어 작업이 보다 용이해질 수 있다.Self-piercing rivets or flow-drill screws do not require additional coupling of nuts in the opposite direction into which the self-piercing rivets or flow-drill screws are inserted, making the operation easier.

제1크러시박스(150)의 후방은 상부 및 하부로 연장되게 형성된다.The rear of the first crush box 150 is formed to extend to the top and bottom.

제1크러시박스(150)의 후방의 상부 및 하부에는 전후방향으로 관통되게 볼트체결공이 형성된다.Bolt fastening holes are formed in the upper and lower rear portions of the first crush box 150 to penetrate in the front-rear direction.

제2크러시박스(250)는 스틸재질로 제작되는 것이 바람직하다.The second crush box 250 is preferably made of steel.

제2크러시박스(250)의 스틸재질은 590급의 고강도강인 것이 바람직하다. The steel material of the second crush box 250 is preferably a high strength steel of 590 grade.

제2크러시박스(250)는 넓은 면이 전후방향을 향하게 배치되는 사각판의 형상으로 형성된다.The second crush box 250 is formed in the shape of a square plate in which a wide surface is disposed in the front-rear direction.

제2크러시박스(250)의 중앙부는 전후방향으로 관통되게 형성된다. 이로 인해 제2크러시박스(250)의 중앙부는 프런트사이드멤버(200)의 내부공간과 연통된다.The central portion of the second crush box 250 is formed to penetrate in the front-rear direction. Due to this, the central portion of the second crush box 250 communicates with the inner space of the front side member 200.

제2크러시박스(250)는 제2크러시박스(250) 중앙부의 좌측 및 우측에 후방으로 돌출되게 형성되는 제2연장부(251)를 포함한다.The second crush box 250 includes a second extension portion 251 formed to protrude rearwardly to the left and right sides of the central portion of the second crush box 250.

제2연장부(251)의 외측 폭은 프런트사이드멤버(200)의 내부공간의 폭과 유사하거나 보다 작게 형성된다. 이로 인해 제2연장부(251)는 프런트사이드멤버(200)의 내부공간의 측면에 끼워진다.The outer width of the second extension portion 251 is formed similar to or smaller than the width of the inner space of the front side member 200. Due to this, the second extension portion 251 is fitted to the side of the inner space of the front side member 200.

프런트사이드멤버(200)와 제2연장부(251)가 맞닿는 제2접촉부(201)의 왼쪽 또는 오른쪽에서 셀프피어싱리벳 또는 플로우드릴스크류를 사용하여, 프런트사이드멤버(200)에 제2크러시박스(250)를 결합할 수 있다.The second crush box (2) is attached to the front side member (200) by using a self-piercing rivet or a flow drill screw on the left or right side of the second contact portion (201) where the front side member (200) and the second extension portion (251) abut. 250).

그로 인해 프런트사이드멤버(200) 및 제2크러시박스(250)에 미리 천공을 하지 않아도 결합이 가능해지므로 제작 공정이 단순화된다.As a result, it is possible to combine the front side member 200 and the second crush box 250 without drilling in advance, thereby simplifying the manufacturing process.

셀프피어싱리벳 또는 플로우드릴스크류는 스틸재질의 제2크러시박스(250) 및 알루미늄재질의 프런트사이드멤버(200)와 결합한다.The self-piercing rivet or flow drill screw is combined with the second crush box 250 made of steel and the front side member 200 made of aluminum.

제2크러시박스(250)의 가로 및 세로 길이는, 제2크러시박스(250)와 결합되는 부위의 프런트사이드멤버(200)의 가로 및 세로 길이보다 크게 형성된다.The horizontal and vertical lengths of the second crush box 250 are formed to be larger than the horizontal and vertical lengths of the front side member 200 at a portion coupled with the second crush box 250.

제2크러시박스(250)의 상부 및 하부에는 전후방향으로 관통되게 볼트체결공이 형성된다. 제2크러시박스(250)의 볼트체결공은 제1크러시박스(150)의 볼트체결공과 연통된다.Bolt fastening holes are formed at upper and lower portions of the second crush box 250 to penetrate in the front-rear direction. The bolt fastening hole of the second crush box 250 is in communication with the bolt fastening hole of the first crush box 150.

제1크러시박스(150)와 제2크러시박스(250)는 볼트체결된다.The first crush box 150 and the second crush box 250 are bolted.

상술한 바와 같이, 본 발명의 바람직한 실시예를 참조하여 설명하였지만, 해당 기술분야의 당업자는 하기의 특허 청구 범위에 기재된 본 발명의 사상 및 영역으로부터 벗어나지 않는 범위 내에서 본 발명을 다양하게 수정 또는 변형하여 실시할 수 있다.As described above, although described with reference to preferred embodiments of the present invention, those skilled in the art variously modify or modify the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. Can be carried out.

100: 프런트범퍼
101: 제1접촉부
150: 제1크러시박스
151: 제1연장부
200: 프런트사이드멤버
201: 제2접촉부
250: 제2크러시박스
251: 제2연장부100: front bumper
101: first contact
150: first crush box
151: first extension
200: front side member
201: second contact portion
250: second crash box
251: second extension

Claims (7)

알루미늄재질로 프레스성형되는 내부프런트범퍼와, 상기 내부프런트범퍼 외측에 플라스틱 수지로 인서트 사출성형되는 외부프런트범퍼로 이루어져 차량의 폭방향으로 길게 형성되는 것을 특징으로 하는 프런트범퍼.A front bumper comprising an inner front bumper that is press-molded with an aluminum material, and an outer front bumper that is injection-molded with plastic resin on the outside of the inner front bumper. 청구항 1에 있어서,
상기 프런트범퍼는 상기 프런트범퍼의 양측 후방에 결합되는 스틸재질의 제1크러시박스를 더 포함하고,
상기 제1크러시박스는 상기 프런트범퍼의 상면 일부 및 하면 일부를 감쌀 수 있는 제1연장부를 포함하고, 상기 제1크러시박스는 상기 제1연장부와 상기 프런트범퍼가 접촉하는 부분에 셀프피어싱리벳 또는 플로우드릴스크류 중 하나에 의해 결합되는 것을 특징으로 하는 프런트범퍼.The method according to claim 1,
The front bumper further includes a first crush box made of steel that is coupled to both rear sides of the front bumper,
The first crush box includes a first extension part that can cover a part of the upper surface and a lower surface of the front bumper, and the first crush box is a self-piercing rivet in a portion in contact with the first extension part and the front bumper. A front bumper characterized by being coupled by one of the flow drill screws. 청구항 2에 있어서,
상기 내부프런트범퍼의 알루미늄재질은 두께 2.0mm의 5000계열의 고강도 알루미늄이고,
상기 외부프런트범퍼의 플라스틱 수지는 3.0mm로 성형되는 GMT이고,
상기 제1크러시박스의 스틸재질은 두께 2.0mm의 590급 고강도강인 것을 특징으로 하는 프런트범퍼.The method according to claim 2,
The aluminum material of the inner front bumper is 5000 series high-strength aluminum with a thickness of 2.0 mm,
The plastic resin of the outer front bumper is GMT molded to 3.0mm,
The steel material of the first crush box is a front bumper, characterized in that 590 grade high-strength steel with a thickness of 2.0 mm. 알루미늄재질로 압축성형 후 핫블로우 포밍되어 일체형으로 제작되고, 차량의 길이방향으로 길게 한 쌍으로 형성되는 것을 특징으로 하는 프런트사이드멤버.A front side member characterized by being formed in a single piece by being hot-blowed after compression molding with an aluminum material, and formed in a long pair in the longitudinal direction of the vehicle. 청구항 4에 있어서,
상기 프런트사이드멤버의 내부에는 차량의 길이 방향으로 관통되게 내부공간이 형성되고,
상기 프런트사이드멤버는 상기 프런트사이드멤버의 전방에 결합되는 스틸재질의 제2크러시박스를 더 포함하고,
상기 제2크러시박스는 상기 내부공간의 측면에 끼워지는 제2연장부를 포함하고, 상기 제2크러시박스는 상기 제2연장부와 상기 프런트사이드멤버가 접촉하는 부분에 셀프피어싱리벳 또는 플로우드릴스크류 중 하나에 의해 결합되는 것을 특징으로 하는 프런트사이드멤버.The method according to claim 4,
Inside the front side member, an interior space is formed to penetrate the vehicle in the longitudinal direction,
The front side member further includes a second crush box made of steel coupled to the front side of the front side member,
The second crush box includes a second extension portion that is fitted to the side of the interior space, and the second crush box comprises a self-piercing rivet or flow drill screw in a portion where the second extension portion and the front side member contact each other. Front side member characterized by being joined by one. 청구항 5에 있어서,
상기 프런트사이드멤버의 알루미늄재질은 두께 3.0mm의 5000계열의 고강도 알루미늄이고,
상기 제2크러시박스의 스틸재질은 두께 2.0mm의 590급 고강도강인 것을 특징으로 하는 프런트사이드멤버.The method according to claim 5,
The aluminum material of the front side member is a high-strength aluminum of 5000 series of thickness 3.0mm,
The steel member of the second crush box is a front side member, characterized in that 590 high-strength steel with a thickness of 2.0 mm. 알루미늄재질로 프레스성형되는 내부프런트범퍼와, 상기 내부프런트범퍼 외측에 플라스틱 수지로 인서트 사출성형되는 외부프런트범퍼로 이루어져 차량의 폭방향으로 길게 형성되는 프런트범퍼;
알루미늄재질로 압축성형 후 핫블로우 포밍되어 일체형으로 제작되고, 차량의 길이방향으로 길게 한 쌍으로 형성되는 프런트사이드멤버;
상기 프런트범퍼는 상기 프런트범퍼의 양측 후방에 결합되는 스틸재질의 제1크러시박스; 및
상기 프런트사이드멤버는 상기 프런트사이드멤버의 전방에 결합되는 스틸재질의 제2크러시박스;를 포함하고,
상기 제1크러시박스는 상기 프런트범퍼의 상면 일부 및 하면 일부를 감쌀 수 있는 제1연장부를 포함하고, 상기 제1크러시박스는 상기 제1연장부와 상기 프런트범퍼가 접촉하는 부분에 셀프피어싱리벳 또는 플로우드릴스크류 중 하나에 의해 결합되고,
상기 프런트사이드멤버의 내부에는 차량의 길이 방향으로 관통되게 내부공간이 형성되고,
상기 제2크러시박스는 상기 내부공간의 측면에 끼워지는 제2연장부를 포함하고, 상기 제2크러시박스는 상기 제2연장부와 상기 프런트사이드멤버가 접촉하는 부분에 셀프피어싱리벳 또는 플로우드릴스크류 중 하나에 의해 결합되는 것을 특징으로 하는 프런트범퍼 및 프런트사이드멤버 모듈.An inner front bumper press-molded with an aluminum material, and a front bumper formed in the width direction of the vehicle, consisting of an outer front bumper injection-molded with plastic resin on the outside of the inner front bumper;
After forming by compression molding with aluminum material, it is hot blow-formed and is integrally manufactured, and the front side member is formed in a pair in the longitudinal direction of the vehicle;
The front bumper is a first crush box made of steel that is coupled to both rear of the front bumper; And
The front side member includes a second crush box made of steel which is coupled to the front side of the front side member.
The first crush box includes a first extension part that can cover a part of the upper surface and a lower surface of the front bumper, and the first crush box is a self-piercing rivet in a portion in contact with the first extension part and the front bumper. Combined by one of the flow drill screws,
Inside the front side member, an interior space is formed to penetrate the vehicle in the longitudinal direction,
The second crush box includes a second extension portion that is fitted to the side of the interior space, and the second crush box comprises a self-piercing rivet or flow drill screw in a portion where the second extension portion and the front side member contact each other. Front bumper and front side member module, characterized by being combined by one.
KR1020180169265A 2018-12-26 2018-12-26 Front Bumper and Front Side Member Module KR102145486B1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060013888A (en) * 2004-08-09 2006-02-14 주식회사 성우하이텍 Side member assembly of body
JP2009508759A (en) * 2005-09-23 2009-03-05 イェスタムプ・ハードテック・アクチエボラーグ How to fasten crash box and bumper beam
KR20090101726A (en) * 2008-03-24 2009-09-29 주식회사 성우하이텍 Bumper stay of automotive bumper unit
KR100929528B1 (en) 2008-08-01 2009-12-03 주식회사 성우하이텍 Front side member assembly
KR20140148066A (en) 2013-06-21 2014-12-31 현대자동차주식회사 Mounting structure of bumper-stay
KR20150144369A (en) * 2014-06-16 2015-12-28 기아자동차주식회사 Structure of bumper-beam

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060013888A (en) * 2004-08-09 2006-02-14 주식회사 성우하이텍 Side member assembly of body
JP2009508759A (en) * 2005-09-23 2009-03-05 イェスタムプ・ハードテック・アクチエボラーグ How to fasten crash box and bumper beam
KR20090101726A (en) * 2008-03-24 2009-09-29 주식회사 성우하이텍 Bumper stay of automotive bumper unit
KR100929528B1 (en) 2008-08-01 2009-12-03 주식회사 성우하이텍 Front side member assembly
KR20140148066A (en) 2013-06-21 2014-12-31 현대자동차주식회사 Mounting structure of bumper-stay
KR20150144369A (en) * 2014-06-16 2015-12-28 기아자동차주식회사 Structure of bumper-beam

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