KR19980028914A - Reinforcement structure of door lower part of car - Google Patents

Reinforcement structure of door lower part of car Download PDF

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Publication number
KR19980028914A
KR19980028914A KR1019960048104A KR19960048104A KR19980028914A KR 19980028914 A KR19980028914 A KR 19980028914A KR 1019960048104 A KR1019960048104 A KR 1019960048104A KR 19960048104 A KR19960048104 A KR 19960048104A KR 19980028914 A KR19980028914 A KR 19980028914A
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KR
South Korea
Prior art keywords
door
buffer
vehicle
impact
car
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KR1019960048104A
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Korean (ko)
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KR100193008B1 (en
Inventor
최국선
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박병재
현대자동차 주식회사
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Priority to KR1019960048104A priority Critical patent/KR100193008B1/en
Publication of KR19980028914A publication Critical patent/KR19980028914A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J5/00—Doors
    • B60J5/04—Doors arranged at the vehicle sides
    • B60J5/042—Reinforcement elements
    • B60J5/0451—Block or short strip-type elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J5/00—Doors
    • B60J5/04—Doors arranged at the vehicle sides
    • B60J5/042—Reinforcement elements
    • B60J5/0452—Reinforcement elements including foams or expanded materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J5/00—Doors
    • B60J5/04—Doors arranged at the vehicle sides
    • B60J5/0412—Lower door structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R2021/0002—Type of accident
    • B60R2021/0006—Lateral collision
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/12—Occupant safety arrangements or fittings, e.g. crash pads which protect the occupants against personal attack from the inside or the outside of the vehicle

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

Abstract

본 발명은 도어 하단부의 강성을 증대시켜 차량의 측면충돌시 도어에 가해지는 충격량을 도어 자체에서 충분히 흡수 및 도어가 내측으로 밀리는 것을 지연시킴으로써, 차내 탑승자의 안전성을 향상시킬 수 있는 자동차의 도어 하단부 보강구조에 관한 것으로, 도어(10)의 내부 하단에는 완충부재(30)가 내장된 박스형태의 완충대(40)을 설치하되, 상기 완충대(40)의 전,후,상,하면에는 배출구(41)를 형성하고, 상기 완충대(40)의 좌,우 단부는 보강패널(50)(50a)을 통해 도어 인너패널(11)과 도어 아웃터패널(12)에 결합하여 구성된다.The present invention increases the rigidity of the lower end of the door to sufficiently absorb the impact amount applied to the door in the event of a side collision of the vehicle and retards the door from being pushed inward, thereby reinforcing the lower end of the door of the vehicle which can improve the safety of the occupant in the vehicle. Regarding the structure, the inner bottom of the door 10 is provided with a box-shaped buffer 40 in which the buffer member 30 is built, and before, after, the upper and lower surfaces of the buffer 40, the outlet ( 41 is formed, and the left and right ends of the buffer table 40 are coupled to the door inner panel 11 and the door outer panel 12 through the reinforcement panels 50 and 50a.

Description

자동차의 도어 하단부 보강구조Reinforcement structure of door lower part of car

본 발명은 자동차의 도어 하단부 보강구조에 관한 것으로, 보다 구체적으로는 도어의 내부 하단에 보강부재를 설치하여 도어의 강성을 증대시킴으로써, 차량의 측면충돌시 도어에 가해지는 충격을 도어 자체에서 충분히 흡수 및 실내로 전달되는 것을 차단하여 차내 탑승자에게 가해지는 충격량을 최소화하여 탑승자의 안전을 최대한 보호할 수 있도록 한 것이다.The present invention relates to a reinforcing structure of the lower end of a door of a vehicle, and more particularly, by installing a reinforcing member at an inner lower end of the door to increase the rigidity of the door, thereby sufficiently absorbing the impact applied to the door when the side of the vehicle collides. And to block the transmission to the interior to minimize the amount of impact applied to the occupant in the car to ensure the maximum safety of the occupant.

일반적으로 자동차의 충돌사고시 승객의 안전을 확보하기 위한 테스트로는 전방충돌과 측면충돌이 있으며, 이는 자동차의 안전성을 확보하는 중요한 요소로서 이미 각 나라에서는 이러한 충돌시의 안전치를 법규화하여 수입규제 등의 큰 항목으로 이용하고 있다.In general, tests to ensure the safety of passengers in the event of a car crash include front and side collisions, which are important factors to secure car safety. We use with big item of.

그러나, 현재 생산되고 있는 자동차는 대부분이 전방충돌에 대한 안전치는 어느 정도 확보하고 있으나, 측면충돌에 대한 안전치는 미흡한 실정이다. 즉, 그 원인으로는 차체의 도어 구조가 취약하기 때문이다.However, most of the automobiles currently produced have some safety values for forward collisions, but the safety values for side collisions are insufficient. That is, the reason is that the door structure of the vehicle body is weak.

한편, 도어의 보강구조는 도 1 에서와 같이 도어(1)의 내부 상단에는 고장력 임팩트 멤버(2)가 설치되며, 내부 하단에는 고강력 임팩트 바(3)가 설치되어 차량의 측면충돌시 도어(1)가 찌그러지며 내측으로 밀려들어오는 것을 차단하여 탑승자의 안전에 만전을 기하였다.On the other hand, the reinforcing structure of the door is a high-impact impact member (2) is installed on the inner top of the door (1), as shown in Figure 1, the high-impact impact bar (3) is installed on the inner bottom of the door when the side impact of the vehicle ( 1) was crushed and prevented from inward to ensure safety of the occupants.

그러나, 종래의 임팩트 바(3)는 도 2 에서와 같이 내부에 중공부(4)가 구비된 파이프 형상으로 구성되어 도어 아웃터패널(5)의 내측면에 접착실러로 결합되며, 그 단부에는 고정브래킷의 일측단부가 결합되고, 상기 고정브래킷의 타측단부는 도어 인너패널의 외측면에 용접 결합된다.However, the conventional impact bar 3 has a pipe shape having a hollow portion 4 therein as shown in FIG. 2, and is coupled to an inner surface of the door outer panel 5 by an adhesive sealer, and fixed at an end thereof. One end of the bracket is coupled, and the other end of the fixing bracket is welded to the outer surface of the door inner panel.

상기와 같이 구성된 종래의 임팩트 바(3) 자체는 접착실러에 의해 결합됨에 따라 도어 아웃터패널(5)과의 결속력이 거의 미약하며, 또한, 임팩트 바(3)의 주기능은 외부로부터의 충격을 흡수하는 것 보다는 도어(1)의 형상을 유지시키기 위한 것이다.As the conventional impact bar 3 itself configured as described above is coupled by the adhesive sealer, the binding force with the door outer panel 5 is almost weak, and the main function of the impact bar 3 is to provide an impact from the outside. This is to maintain the shape of the door (1) rather than absorb.

따라서, 종래의 임팩트 바(3)는 차량의 측면충돌시 도어 아웃터패널(5)로부터 충격이 전가되면, 그 결속력이 미약함에 따라 상기 충격에 의해 도어 아웃터패널(5)로부터 쉽게 이탈되어 내측으로 밀리게되므로 도어 보강구조로서의 기능을 제대로 수행하지 못하였으며, 또한, 임팩트 바(3)의 성질상 외부로부터의 충격을 흡수하기 보다는 도어(1)의 형상을 유지하기 위한 것이므로 도어(1)의 하단부에서는 차량의 측면충돌시 가해지는 충격에 대한 흡수가 제대로 이루어지지 않게되어 차내 탑승자에게 가해지는 상해치가 커지는 문제점이 소지되어 있었다.Therefore, when the impact bar 3 is transferred from the door outer panel 5 during the side impact of the vehicle, the conventional impact bar 3 is easily detached from the door outer panel 5 by the impact and is pushed inwards due to its weak binding force. Therefore, the door reinforcing structure did not function properly, and the impact bar (3) in order to maintain the shape of the door (1) rather than absorb the impact from the outside, so at the lower end of the door (1) Absorption of the shock applied to the side of the vehicle is not made properly, there is a problem that the injury value applied to the occupant in the car increases.

본 발명은 상기와 같은 문제점을 해소하기 위해 안출된 것으로, 도어 하단부의 강성을 증대시켜 외부로부터의 충격에 충분히 대응할 수 있도록 하여 차량의 측면충돌시 차내 탑승자에게 가해지는 충격량을 최소화하므로써, 탑승자의 안전성을 향상시킬 수 있는 자동차의 도어 하단부 보강구조를 제공하려는 것이다.The present invention has been made to solve the above problems, by increasing the stiffness of the lower end of the door to sufficiently respond to the impact from the outside to minimize the amount of impact applied to the occupant in the vehicle when the side of the vehicle collision, safety of the occupants It is to provide a reinforcement structure of the lower portion of the door of the car that can improve the.

상기와 같은 목적을 달성하기 위한 본 발명은 도어의 내부 하단에 설치된 임팩트 바의 하부로는 완충부재가 내장된 박스형태의 완충대를 설치한 것으로, 상기 완충대에 의해 도어의 하단부에도 외부로부터의 충격에 대한 대응력이 생성되어 도어 하단부의 강성이 증대된다.The present invention for achieving the above object is to install a box-type shock absorber with a built-in shock absorbing member in the lower portion of the impact bar installed on the inner lower end of the door, from the outside of the lower end of the door by the buffer Responsive forces are generated to increase the rigidity of the lower door.

도 1 은 자동차의 측면도1 is a side view of a car

도 2 는 종래 구조를 나타낸 도 1 의 A - A 선 단면도2 is a cross-sectional view taken along the line A-A of Figure 1 showing a conventional structure

도 3 은 본 발명의 단면도3 is a cross-sectional view of the present invention

도 4 는 본 발명에 의한 완충대의 사시도4 is a perspective view of the buffer according to the present invention

*도면의 주요부분에 대한 부호설명* Code descriptions for the main parts of the drawings

10 : 도어 인너패널 11 : 도어 인너패널10: door inner panel 11: door inner panel

12 : 도어 아웃터패널공간 20 : 공간12: door outer panel space 20: space

30 : 완충부재 40 : 완충대30: buffer member 40: buffer

41 : 배출구41 outlet

도 3 과 도 4 에서 도시되는 바와같이 본 발명은 도어 인너패널(11)의 외측으로는 공간(20)을 사이에 두고 도어 아웃터패널(12)을 결합하여 도어(10)가 구성되며,As shown in FIG. 3 and FIG. 4, the door 10 is configured by combining the door outer panel 12 with the space 20 interposed outside the door inner panel 11.

상기 공간(20)의 하부에는 내부에 중공부(61)가 구비된 파이프 형상의 임팩트 바(60)를 설치하고,The lower portion of the space 20 is installed with a pipe-shaped impact bar 60 having a hollow portion 61 therein,

상기 임팩트 바(60)의 하부에는 좌,우가 연통되는 박스형태로 형성되어 그 내부에 완충부재(30)가 내설되며, 전,후,상,하면에는 배출구(41)가 구비된 완충대(40)를 장착하며,The lower portion of the impact bar 60 is formed in the form of a box in which the left and right communication, the buffer member 30 is installed therein, the front, rear, upper, lower surface buffer block 40 is provided with a discharge port (41). ),

상기 완충대(40)의 좌,우 단부에는 플랜지(42)를 사방으로 외향되게 형성하고,On the left and right ends of the buffer 40, the flange 42 is formed to be outward in all directions,

상기 완충대(40)의 플랜지(42)에는 보강패널(50)(50a)을 각각 용접 결합하고,The flange 42 of the buffer 40 is welded to each of the reinforcement panels 50 and 50a,

상기 완충대(40)의 내측단에 결합된 보강패널(50)은 도어 인너패널(11)의 외측면에 용접 결합하며, 외측단의 보강패널(50a)은 도어 아웃터패널(12)에 접착실러로 결합한다.The reinforcement panel 50 coupled to the inner end of the buffer table 40 is welded to the outer surface of the door inner panel 11, and the reinforcement panel 50a of the outer end is bonded to the door outer panel 12. To combine.

상기 완충부재(30)는 폴리스티렌 포움(polystyrene foam)등과 같은 내충격성이 강한 합성수지제를 사용한다.The buffer member 30 uses a synthetic resin having a high impact resistance, such as polystyrene foam.

이와같이 구성된 본 발명은 차량의 측면충돌시 도어 아웃터패널(12)이 내측으로 밀리며 완충대(40)에 충격을 전달하면 1 차적으로 측면충돌에 대한 버팀역할을 하는 완충대(40)의 지지를 받으면서 보강패널(50)(50a)과 완충대(40)가 내측으로 밀리게되며, 동시에 완충대(40)에 내장된 완충부재(30)가 상기 전가된 충격으로 인해 파괴되면서 완충대(40)가 찌그러지고, 이 때, 완충부재(30)가 완충대(40)의 배출구(41)를 통해 완충대(40)의 외부로 나오면서 2 차로 충격을 흡수한다.The present invention configured as described above receives the support of the buffer 40 which acts as a brace for the side collision primarily when the door outer panel 12 is pushed inward and the shock is transmitted to the buffer 40 during the side collision of the vehicle. The reinforcing panel 50, 50a and the buffer 40 are pushed inward, and at the same time, the buffer 40 is broken while the shock absorbing member 30 embedded in the buffer 40 is destroyed by the imparted shock. At this time, the shock absorbing member 30 comes out of the shock absorber 40 through the outlet 41 of the shock absorber 40 and absorbs the shock secondly.

따라서, 이러한 본 발명은 상기 완충부재와 완충대의 높은 응력에 의해 도어에 가해지는 외부로부터의 충격이 충분히 흡수, 완화됨은 물론 도어의 변형이 방지되므로 탑승자의 안전을 확보하는 동시에 차량의 측면충돌에 대한 안전치 법규만족에 충분히 대응할 수 있다.Therefore, the present invention is sufficiently absorbed and mitigated the impact from the outside due to the high stress of the buffer member and the buffer as well as the deformation of the door is prevented to ensure the safety of the occupants at the same time to the collision of the vehicle Can fully respond to safety level legislation.

이상에서 살펴본 바와같이 본 발명은 도어의 하단부에 설치된 완충부재와 완충대에 의해 도어 하단부의 강성이 증대되어 차량의 측면충돌시 도어에 가해지는 충격이 도어 자체에서 충분히 흡수되므로 승객룸에 전달되는 충격량이 감소되어 탑승자의 안전성을 향상시킬 수 있는 매우 유용한 발명이다.As described above, in the present invention, the rigidity of the lower end of the door is increased by the shock absorbing member and the shock absorbing member installed at the lower end of the door, so that the impact applied to the door during the side collision of the vehicle is sufficiently absorbed by the door itself, and thus the amount of shock transmitted to the passenger room. This is a very useful invention that can be reduced to improve the safety of the occupants.

Claims (2)

도어 인너패널(11)의 외측으로는 공간(20)을 사이에 두고 도어 아웃터패널(12)을 결합하여 도어(10)가 구성됨에 있어서,In the outer side of the door inner panel 11, the door 10 is configured by combining the door outer panel 12 with the space 20 therebetween, 상기 공간(20)의 하단에는 박스형태로 형성되어 그 내부에 완충부재(30)가 내장되고, 전,후,상,하면에는 배출구(41)가 구비된 완충대(40)를 설치한 것을 특징으로 하는 자동차의 도어 하단부 보강구조.The lower end of the space 20 is formed in the form of a box, the buffer member 30 is built therein, and the front, rear, upper and lower surfaces are provided with a buffer 40 provided with an outlet 41. Reinforcement structure of the lower part of the door of the car. 제 1 항에 있어서, 상기 완충부재(30)는 폴리스티렌 포움(polystyrene foam)과 같은 내충격성이 강한 합성수지제인 것을 특징으로 하는 자동차의 도어 하단부 보강구조.The method of claim 1, wherein the buffer member 30 is a reinforcement structure of a door lower part of a vehicle, characterized in that the impact resistant synthetic resin, such as polystyrene foam (polystyrene foam).
KR1019960048104A 1996-10-24 1996-10-24 Reinforcement structure of door for a car KR100193008B1 (en)

Priority Applications (1)

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KR1019960048104A KR100193008B1 (en) 1996-10-24 1996-10-24 Reinforcement structure of door for a car

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KR1019960048104A KR100193008B1 (en) 1996-10-24 1996-10-24 Reinforcement structure of door for a car

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KR19980028914A true KR19980028914A (en) 1998-07-15
KR100193008B1 KR100193008B1 (en) 1999-06-15

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