KR0123053B1 - The reinforcement structure of a floor panel - Google Patents

The reinforcement structure of a floor panel

Info

Publication number
KR0123053B1
KR0123053B1 KR1019950005597A KR19950005597A KR0123053B1 KR 0123053 B1 KR0123053 B1 KR 0123053B1 KR 1019950005597 A KR1019950005597 A KR 1019950005597A KR 19950005597 A KR19950005597 A KR 19950005597A KR 0123053 B1 KR0123053 B1 KR 0123053B1
Authority
KR
South Korea
Prior art keywords
floor panel
cross member
subframe
reinforcement structure
reinforcement
Prior art date
Application number
KR1019950005597A
Other languages
Korean (ko)
Other versions
KR960033991A (en
Inventor
김해웅
Original Assignee
한승준
기아자동차주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한승준, 기아자동차주식회사 filed Critical 한승준
Priority to KR1019950005597A priority Critical patent/KR0123053B1/en
Publication of KR960033991A publication Critical patent/KR960033991A/en
Application granted granted Critical
Publication of KR0123053B1 publication Critical patent/KR0123053B1/en

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Classifications

    • 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
    • B62D21/157—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 for side impacts
    • 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
    • B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

Disclosed is a structure for reinforcing a floor panel in a car. front and rear portions of a reinforcement(50) are attached to the floor panel(10). Center portion of the curve shaped reinforcement(50) is folded with inner portion of a cross member(20). Thereby, the stress to the floor panel is dissipated.

Description

자동차 플로어판넬의 보강구조Reinforcement structure of automobile floor panel

제1도는 종래 자동차의 차체 저면부를 나타내는 부분절개 사시도.1 is a partial cutaway perspective view showing a bottom portion of a vehicle body of the related art.

제2도는 본 발명의 차체를 나타내는 부분절개 사시도.2 is a partial cutaway perspective view showing a vehicle body of the present invention.

제3도는 제2도의 A－A선 단면도.3 is a cross-sectional view taken along the line AA of FIG.

제4도는 제2도의 B－B선 단면도.4 is a sectional view taken along the line B-B in FIG.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 플로어판넬 20 : 크로스멤버10: Floor panel 20: Cross member

30 : 서브프레임 40 : 사이드실30: subframe 40: side seal

50 : 보강판50: reinforcement plate

본 발명은 자동차 크로스멤버(cross member)와 서브프레임(sub frame)이 횡단되는 부위의 플로어판넬(floor panel) 보강구조에 관한 것으로서, 특히 플로어판넬에 종방향과 횡방향으로 겹쳐지게 작용되는 하중을 효과적으로 분산시켜 주도록 하는 자동차 플로어판넬의 보강구조에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor panel reinforcement structure of a cross section of an automobile cross member and a subframe. Particularly, a load applied to the floor panel in a longitudinal direction and a transverse direction is applied. The present invention relates to a reinforcement structure of an automobile floor panel that enables effective dispersion.

일반적으로, 자동차의 저면부 차체구조는 제1도에 도시된 바와 같이, 차량의 전면부를 형성하는 플로어판넬(floor panel), (10)의 상단면 중심부에 전후방향으로 터널(tunnel)이 상부로 돌출되게 형성되고, 플로어판넬(10)의 횡방향으로 개단면으로된 크로스멤버(cross member), (20)가 상기 터널로 횡단하여 횡방향으로 취부되어 있다. 또한, 플로어판넬(10)의 저면에 개단면으로된 서브프레임(sub frame), (30)이 개구부가 상부로 향하여 취부되고, 플로어판넬(10)의 양측단부에 폐단면으로 된 사이드실(side sill), (40)이 취부되며, 사이드실(40)의 내측면에 크로스멤버(20)의 측단부가 연결되어 있다.In general, the vehicle body structure of the bottom part of a vehicle is a floor panel forming a front part of the vehicle, as shown in FIG. Cross members 20 which are formed so as to protrude and are opened in the transverse direction of the floor panel 10 are mounted in the transverse direction across the tunnel. In addition, a side frame of which subframes (30), which are open surfaces at the bottom surface of the floor panel (10), is mounted with openings facing upward, and closed sections at both end portions of the floor panel (10). sill) and 40 are mounted, and the side ends of the cross members 20 are connected to the inner surface of the side seal 40.

이와 같이 구성되는 종래 자동차의 저면부 차체구조는, 터널과 서브프레임(30)이 플로어판넬(10)의 전후방향으로 작용되는 하중을 견디도록 전후방향의 강성을 높여 주고, 크로스멤버(20)가 플로어판넬(10)의 횡방향 강성을 높여 주어 횡방향으로 작용되는 하중을 견디도록 하며, 사이드실(40)이 차량의 측부에서 작용되는 충격하중에 대해 1차적으로 충격에너지를 흡수하고 완충하도록 되어 있다.The body structure of the bottom portion of the conventional vehicle configured as described above increases the rigidity in the front and rear directions so that the tunnel and the subframe 30 withstand the load acting in the front and rear directions of the floor panel 10, and the cross member 20 is By increasing the lateral rigidity of the floor panel 10 to withstand the load acting in the lateral direction, the side seal 40 is primarily to absorb and cushion the impact energy against the impact load acting on the side of the vehicle have.

그러나, 종래 자동차의 저면부 차체구조는, 크로스멤버(20)와 서브프레임(30)이 겹쳐지는 부위의 플로어판넬(10)에 종방향과 횡방향으로 응력이 작용되기 때문에, 플로어판넬(10)의 일부에 응력이 국부적으로 집중되어 항복응력이 부분적으로 취약하게 되는 문제점이 있었다.However, in the vehicle body structure of the bottom part of the conventional vehicle, since the stress is applied to the floor panel 10 at the portion where the cross member 20 and the subframe 30 overlap, the floor panel 10 is applied. There is a problem in that the stress is locally concentrated in a part of the yield stress is partially weak.

본 발명의 목적은 상기와 같은 종래의 문제점을 보완하기 위해, 크로스멤버와 플로어판넬 사이에 보강판이 서브프레임의 축방향으로 취부되도록 하여, 플로어판넬에 국부적으로 집중되는 응력이 분산되도록 하는 자동차 플로어판넬의 보강구조를 제공하는데 있다.An object of the present invention is to compensate for the above-mentioned problems, the automobile floor panel to the reinforcement plate is mounted between the cross member and the floor panel in the axial direction of the subframe, so that the stress concentrated locally on the floor panel is dispersed To provide a reinforcing structure of

이하 첨부된 도면에 의하여 본 발명의 기술적 구성을 상세히 설명하면 다음과 같다.Hereinafter, the technical configuration of the present invention with reference to the accompanying drawings in detail.

본 발명의 저면부 차체구조도 제2도 내지 제4도에 도시된 바와 같이, 차량의 저면부를 형성하는 플로어판넬(10)의 상단면 중심부에 전후방향으로 터널이 상부로 돌출되게 형성되고, 플로어판넬(10)의 횡방향으로 개단면으로된 크로스멤버(20)가 상기 터널을 횡단하여 횡방향으로 취부된다. 또한, 플로어판넬(10)의 저면에 개단면으로된 서브프레임(30)이 개구부가 상부로 향하여 취부되고, 플로어판넬(10)의 양측단부에 폐단면으로 된 사이드실(40)이 취부되며, 사이드실(40)의 내측면에 크로스멤버(20)의 측단부가 연결된다. 단, 본 발명은 서브프레임(30)이 겹쳐지는 부위에서, 크로스멤버(20)와 플로어판넬(10)의 상단면 사이에 보강판(reinforcement), (50)이 서브프레임(30)의 축방향으로 일정길이 연장되게 취부됨을 그 기술적 구성상의 기본 특징으로 한다.As shown in FIGS. 2 to 4, the tunnel body protrudes in the front-back direction in the center of the upper end surface of the floor panel 10 forming the bottom portion of the vehicle, as shown in FIGS. 2 to 4. A cross member 20 having an open cross section in the transverse direction of the panel 10 is mounted in the transverse direction across the tunnel. In addition, an opening of the subframe 30 having an open end face is mounted on the bottom surface of the floor panel 10 with the opening facing upward, and side seals 40 having a closed end face are attached to both end portions of the floor panel 10. The side end of the cross member 20 is connected to the inner side surface of the side seal 40. However, in the present invention, the reinforcement plate (50) between the cross member 20 and the upper surface of the floor panel 10 at the portion where the subframe 30 overlaps, the axial direction of the subframe 30 To be installed to extend a certain length as a basic feature of the technical configuration.

여기에서, 보강판(50)은 중간부가 절곡되어 크로스멤버(20)의 절곡된 개구부 내부면에 겹쳐지게 부착되도록 함이 바람직하다.Here, the reinforcing plate 50 is preferably bent so that the middle portion is overlapped with the inner surface of the bent opening of the cross member 20.

이와 같이 구성된 본 발명은, 보강판(50)에 의해 크로스멤버(20)와 서브프레임(30)이 겹쳐지게 횡단되는 플로어판넬(10) 부위의 강성이 향상되도록 하고, 보강판(50)의 중간부가 크로스멤버(20)의 개구부에 겹쳐져 크로스멤버(20)의 강성이 부분적으로 보강되도록 하며, 플로어판넬(10)의 일정부위에 종방향 및 횡방향으로 작용되는 하중이 보강판(50)에 의해 분산되도록 한다.According to the present invention configured as described above, the rigidity of the floor panel 10 portion where the cross member 20 and the subframe 30 are overlapped by the reinforcing plate 50 is improved, and the middle of the reinforcing plate 50 is improved. The stiffness of the cross member 20 is partially reinforced by overlapping the opening of the additional cross member 20, and loads acting in a longitudinal direction and a lateral direction on a portion of the floor panel 10 are reinforced by the reinforcing plate 50. To be distributed.

따라서, 이러한 본 발명은 플로어판넬(10)에 응력이 국부적으로 집중되는 것을 방지하며, 플로어판넬(10)의 부분적인 변형이나 파손을 효과적으로 억제하게 되는 장점이 있다.Therefore, the present invention has the advantage of preventing the local concentration of stress on the floor panel 10, and effectively suppresses partial deformation or breakage of the floor panel 10.

이상에서 살펴본 바와 같이, 본 발명은 크로스멤버와 플로어판넬 사이에 보강판이 서브프레임의 축방향으로 취부되어, 플로어판넬에 국부적으로 응력이 집중되는 것을 방지하는 매우 유용한 것이다.As described above, the present invention is very useful to prevent the reinforcement plate is mounted between the cross member and the floor panel in the axial direction of the subframe, so that the stress is concentrated locally on the floor panel.

Claims (1)

저면에 서브프레임(30)이 취부되는 플로어판넬(10)의 상단면에 하부가 개구된 크로스멤버(20)가 취부되고, 플로어판넬(10)과 크로스멤버(20)의 사이에 보강판(50)이 설치되는 것에 있어서, 상기 보강판(50)의 전방부와 후방부를 플로어판넬(10)에 부착하고, 절곡한 보강판(50)의 중앙부를 크로스멤버(20)의 내부에 겹쳐서 부착한 것을 특징으로 하는 자동차 플로어판넬의 보강구조.A cross member 20 having a lower opening is mounted on an upper end surface of the floor panel 10 on which the subframe 30 is mounted, and a reinforcing plate 50 is disposed between the floor panel 10 and the cross member 20. ), The front and rear portions of the reinforcement plate 50 are attached to the floor panel 10, and the center portion of the bent reinforcement plate 50 is overlapped and attached to the inside of the cross member 20. Reinforcement structure of car floor panel
KR1019950005597A 1995-03-17 1995-03-17 The reinforcement structure of a floor panel KR0123053B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950005597A KR0123053B1 (en) 1995-03-17 1995-03-17 The reinforcement structure of a floor panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950005597A KR0123053B1 (en) 1995-03-17 1995-03-17 The reinforcement structure of a floor panel

Publications (2)

Publication Number Publication Date
KR960033991A KR960033991A (en) 1996-10-22
KR0123053B1 true KR0123053B1 (en) 1997-12-08

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ID=19409994

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950005597A KR0123053B1 (en) 1995-03-17 1995-03-17 The reinforcement structure of a floor panel

Country Status (1)

Country Link
KR (1) KR0123053B1 (en)

Also Published As

Publication number Publication date
KR960033991A (en) 1996-10-22

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