KR20040006176A - Box type hollow structure made of FRP with overlap construction for vehicle and manufacturing method thereof - Google Patents

Box type hollow structure made of FRP with overlap construction for vehicle and manufacturing method thereof Download PDF

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Publication number
KR20040006176A
KR20040006176A KR1020020040166A KR20020040166A KR20040006176A KR 20040006176 A KR20040006176 A KR 20040006176A KR 1020020040166 A KR1020020040166 A KR 1020020040166A KR 20020040166 A KR20020040166 A KR 20020040166A KR 20040006176 A KR20040006176 A KR 20040006176A
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South Korea
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hollow structure
upper cover
mold
cover
frp
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KR1020020040166A
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Korean (ko)
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KR100480494B1 (en
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홍기남
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홍기남
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Priority to KR10-2002-0040166A priority Critical patent/KR100480494B1/en
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Publication of KR100480494B1 publication Critical patent/KR100480494B1/en

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    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D35/00—Vehicle bodies characterised by streamlining

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

Abstract

PURPOSE: An FRP(Fiber reinforced plastic) hollow structure for a vehicle with overlap construction and a manufacturing method thereof are provided to reinforce the bonding rigidity by maximizing the bonding area of an upper cover and a lower cover with overlapping sides of upper and lower covers, and to improve the appearance by forming the bonding line under the hollow structure. CONSTITUTION: A hollow structure is composed of a lower cover(1) and an upper cover(2), and made of FRP. A first side part(12) is integrally formed at both sides of a first ceiling part(11) and bent downward. An inner bonding part(13) is integrally formed with the first ceiling part and the first side part and bent outward. An assembling part is formed in the end of the first side part and extended horizontally, and an inner bonding part(13') is extended upward from the assembling part. A second ceiling part(21) and a second side part(22) are integrally formed in the upper cover, and spaced from the first ceiling part and the first side part. An outer bonding part(23) is bent inward at the second ceiling part and the second side part, and mounted to the inner bonding part. The upper cover is overlapped on the lower cover in the hollow structure.

Description

겹침구조를 갖는 차량용 ＦＲＰ 중공형 구조물 및 그 제조방법{Box type hollow structure made of FRP with overlap construction for vehicle and manufacturing method thereof}Box type hollow structure made of FRP with overlap construction for vehicle and manufacturing method

본 발명은 겹침구조를 갖는 차량용 FRP 중공형 구조물 및 그 제조방법에 관한 것으로, 보다 상세하게는 화물차량의 운전실 후방에 설치되는 중공형 구조물로서 하부커버에 상부커버가 씌워지는 구조를 구비하여 외관이 미려함과 동시에 내구성이 향상된 차량용 중공형 구조물 및 그 제조방법에 관한 것이다.The present invention relates to a vehicle FRP hollow structure having an overlapping structure and a method for manufacturing the same, and more particularly, a hollow structure installed at the rear of a cab of a freight vehicle, having a structure in which an upper cover is covered on a lower cover. The present invention relates to a hollow structure for a vehicle and an improved manufacturing method thereof.

일반적으로 화물차량은 운전실과 적재함으로 구분할 수 있으며, 운전실의 상부 또는 후방에 중공형 구조물이 설치되고 있다.In general, a freight vehicle can be classified into a cab and a loading bin, and a hollow structure is installed at the top or the rear of the cab.

상기 중공형 구조물은 화물차량의 주행시 운전실의 후방에서 발생되는 공기의 와류현상에 의한 차체의 후방쏠림을 방지함과 동시에 적재된 화물 및 차량의 공기저항을 감소시켜 차량의 안전운행을 확보하기 위한 것으로, 운전실의 후방에 설치되는 중공형 구조물의 경우, 통상의 FRP 공법으로 제작되는 중공형 구조물은 도 9와 같이 상부커버(102)와 하부커버(101)로 구성되고, 상기 상부커버(2)와 하부커버(1)의 양측 단면이 맞접하도록 접착된 구조를 이루고 있다.The hollow structure is to ensure the safety of the vehicle by reducing the air resistance of the loaded cargo and the vehicle at the same time to prevent the rear tilting of the vehicle body due to the vortex of the air generated from the rear of the cab when driving the cargo vehicle. In the case of a hollow structure installed at the rear of the cab, the hollow structure manufactured by the conventional FRP method is composed of an upper cover 102 and a lower cover 101 as shown in FIG. 9, and the upper cover 2 and Both ends of the lower cover 1 are bonded to each other.

그러나 FRP 재질로 구성된 중공형 구조물은 상부커버와 하부커버가 얇은 두께(t:3~4mm)를 구비하여 상부커버와 하부커버의 접합면적이 충분치 못해 접합면적을 증가시키기 위한 별도의 연결보강부(105)를 상부커버와 하부커버의 내부에 설치하고, 도 10과 같은 하부형틀(103)에 하부커버를 위치시킨 후, 상부형틀(104)에 위치한 상부커버의 양측단면이 하부커버의 양측단면과 맞접하도록 상부커버를 위치시켜 상부커버와 하부커버를 접착하고 있으나, 접합라인이 중공형 구조물의 정면에 위치하고 있어 외관이 미려하지 못하고, FRP수지의 특성상 접합부위의 상하 수축현상으로 박리현상이 발생할 수 있어 주행시 진동에 따른 접합면의 크랙 및 박리가능성이 높으며, 별도의 연결보강부(105)를 설치하기 위한 작업을 수행해야 하므로 작업공수 및 생산비용이 증가하게 되는 문제점이 발생되었다.However, the hollow structure made of FRP material has a thinner thickness (t: 3 ~ 4mm) between the upper cover and the lower cover, so that the connection area between the upper cover and the lower cover is insufficient, so that a separate connecting reinforcement part for increasing the bonding area ( 105 is installed in the upper cover and the lower cover, and after placing the lower cover in the lower mold 103 as shown in Figure 10, both side cross-sections of the upper cover located in the upper mold 104 and both side cross-section of the lower cover The upper cover and the lower cover are bonded by contacting the upper cover, but the bonding line is located on the front of the hollow structure, and the appearance is not beautiful, and due to the characteristics of the FRP resin, peeling may occur due to vertical shrinkage of the joint. There is a high possibility of cracking and peeling of the joint surface due to vibration during driving, and the workmanship and production cost increase because the work to install a separate connection reinforcement portion 105 must be performed. This was the problem that occurred.

본 발명은 상기와 같은 종래의 문제점을 해결하기 위하여 안출되는 것으로,그 목적은 상부커버와 하부커버의 측면부가 겹침구조를 갖도록 구성되어 별도의 연결보강부 없이도 상부커버와 하부커버의 접합면적을 최대화할 수 있어 접합강도를 보강할 수 있고, 접합라인이 중공형 구조물의 저면에 생성되어 외관이 미려하며, 작업공수 단축 및 생산비용을 절감할 수 있는 차량용 FRP 중공형 구조물 및 그 제조방법을 제공함에 있다.The present invention is devised to solve the conventional problems as described above, the object is to have a side structure of the upper cover and the lower cover overlapping structure to maximize the bonding area of the upper cover and the lower cover without a separate connecting reinforcement It is possible to reinforce the joining strength, the joint line is formed on the bottom of the hollow structure to provide a beautiful appearance, to provide a vehicle FRP hollow structure and manufacturing method that can reduce the labor and production costs. have.

상기와 같은 본 발명의 목적은 하부커버의 각측면에 외측방향으로 절곡된 형상으로 성형된 내측접착부가 하부커버에 구비되고, 상기 내측접착부의 외면에 내면이 접착되는 외측접착부가 상부커버에 각측면에 내측방향으로 형성되어 하부커버에 상부커버가 씌워지고, 하부커버의 내측접착부 외면에 상부커버의 외측접착부 내면이 접착되어 겹침구조를 갖도록 구성된 차량용 중공형 구조물 및 그 제조방법을 제공함으로써 달성된다.An object of the present invention as described above is provided on the lower cover the inner adhesive portion formed in the shape bent in the outward direction on each side surface of the lower cover, the outer adhesive portion is bonded to the outer surface of the inner adhesive portion each side surface on the upper cover It is achieved by providing a hollow structure for a vehicle and a method of manufacturing the same, wherein the upper cover is covered in the lower cover, and the inner surface of the upper cover is adhered to the inner surface of the lower cover, and the inner surface of the outer cover of the upper cover is bonded to have an overlapping structure.

도 1 은 본 발명에 따른 중공형 구조물의 구조를 나타낸 분해 사시도1 is an exploded perspective view showing the structure of a hollow structure according to the present invention

도 2 는 본 발명에 따른 중공형 구조물의 제조를 위한 성형틀의 구조를 나타내 분해 사시도Figure 2 is an exploded perspective view showing the structure of the mold for producing a hollow structure according to the present invention

도 3 은 본 발명에 따른 중공형 구조물의 제조를 위한 하부형틀의 구조를 나타낸 사시도Figure 3 is a perspective view showing the structure of the lower mold for the manufacture of the hollow structure according to the present invention

도 4 는 본 발명에 따른 중공형 구조물의 제작공정을 나타낸 공정도Figure 4 is a process diagram showing the manufacturing process of the hollow structure according to the present invention

도 5 는 본 발명에 따른 중공형 구조물의 사시도5 is a perspective view of a hollow structure according to the present invention

도 6 은 도 5 의 A단면을 나타낸 단면도6 is a cross-sectional view showing a cross-section A of FIG.

도 7 은 도 5 의 B단면을 나타낸 단면도FIG. 7 is a cross-sectional view illustrating the section B of FIG. 5. FIG.

도 8 은 도 5 의 C단면을 나타낸 단면도8 is a cross-sectional view showing a cross-section C of FIG.

도 9 는 종래의 차량용 FRP 중공형 구조물의 구조를 나타낸 단면도9 is a cross-sectional view showing the structure of a conventional vehicle FRP hollow structure

도 10 은 종래의 차량용 FRP 중공형 구조물의 제작과정을 나타낸 예시도10 is an exemplary view showing a manufacturing process of a conventional vehicle FRP hollow structure

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

(S) : 중공형 구조물 (1) : 하부커버(S): hollow structure (1): lower cover

(2) : 상부커버 (3) : 하부형틀(2): Upper cover (3): Lower mold

(4) : 상부형틀 (5) : 보조형틀(4): Upper mold (5): Sub mold

(6)(6`) : 성형부 (11) : 제 1 천장부(6) (6`): molding part 11: first ceiling part

(12) : 제 1 측면부 (13)(13`) : 내측접착부(12): first side portion 13 (13`): inner side adhesive portion

(14) : 체결부 (21) : 제 2 천장부14: fastening portion 21: second ceiling portion

(22) : 제 2 측면부 (23) : 외측접착부22: second side portion 23: outer adhesive portion

(101) : 하부커버 (102) : 상부커버101: lower cover 102: upper cover

(103) : 하부형틀 (104) : 상부형틀(103): lower mold (104): upper mold

(105) : 연결보강부(105): connection reinforcement unit

상기한 바와 같은 목적을 달성하고 종래의 결점을 제거하기 위한 과제를 수행하는 본 발명은 상부커버와 하부커버로 구성되고 FRP로 제작되는 차량용 중공형 구조물에 있어서,The present invention to achieve the object as described above and to perform the problem for eliminating the conventional defects in the hollow structure for a vehicle is composed of the upper cover and the lower cover and made of FRP,

상기 하부커버(1)는 제 1 천장부(11)의 양측에 저면방향으로 굽어진 제 1 측면부(12)가 일체형으로 형성되고, 상기 제 1 천장부(11)와 제 1 측면부(12)의 각측면에 외측방향으로 절곡된 형상으로서 제 1 천장부(11)와 제 1 측면부(12)에 일체형으로 형성된 내측접착부(13)가 구비되며, 상기 제 1 측면부(12)의 끝단에 외측 수평방향으로 연장되는 체결부(14)가 형성되고, 상기 체결부(14)로부터 상방향으로 연장되는 또 따른 내측접착부(13`)가 형성된 것으로 구성되며,The lower cover 1 has a first side portion 12 which is bent in the bottom direction on both sides of the first ceiling portion 11 is formed integrally, each side surface of the first ceiling portion 11 and the first side portion 12. Inwardly bent in the outward direction in the first ceiling portion 11 and the first side portion 12 is provided with an inner adhesive portion 13 formed integrally, and extends in the outer horizontal direction at the end of the first side portion 12 The fastening part 14 is formed, and consists of another inner adhesive part 13` extending upward from the fastening part 14,

상기 상부커버(2)는 제 1 천장부(11)와 제 1측면부에 일정간격 이격되도록 위치하는 제 2 천장부(21)와 제 2 측면부(22)가 일체형으로 형성되고, 상기 제 2 천장부(21)와 제 2 측면부(22)의 각측면에 내측방향으로 절곡된 형상으로서 상기 내측접착부(13)의 외면에 내면이 접착되는 외측접착부(23)가 제 2 천장부(21)와 제 2 측면부(22)에 일체형으로 형성된 것으로 구성되어 상부커버(2)와 하부커버(1)가 겹침구조를 이루도록 구성된 차량용 FRP 중공형 구조물 및 그 제조방법을 특징으로 한다.The upper cover 2 is integrally formed with the second ceiling portion 21 and the second side surface portion 22 which are positioned to be spaced apart at a predetermined interval from the first ceiling portion 11 and the first side portion, and the second ceiling portion 21. And an outer adhesive part 23 having an inner surface bonded to an outer surface of the inner adhesive part 13 as a shape that is bent inwardly on each side surface of the second side part 22, the second ceiling part 21 and the second side part 22. Consists of integrally formed in the upper cover 2 and the lower cover 1 is characterized in that the vehicle FRP hollow structure and a manufacturing method configured to form an overlapping structure.

이하, 본 발명의 실시예를 첨부도면과 연계하여 상세히 설명하면 다음과 같다.Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 1 은 본 발명에 따른 중공형 구조물의 구조를 나타낸 분해사시도를, 도 2 는 본 발명에 따른 중공형 구조물의 제조를 위한 성형틀의 구조를 나타내 분해 사시도를, 도 3 은 본 발명에 따른 중공형 구조물의 제조를 위한 하부형틀 및 보조형틀의 결합구조를 나타낸 사시도를 도시한 것으로, 본 발명에 따른 중공형 구조물(S)을 제조하기 위한 성형틀은 하부커버(1)의 제 1 천장부(11)와 제 1 측면부(12)에 대응하는 형상이 구비된 하부형틀(3)과, 상기 하부형틀(3)의 상단에 결합되어 하부커버(1)의 내측접착부(13)를 성형하는 보조형틀(5)과, 상부커버(2)의 제2 천장부(21)와 제 2 측면부(22) 및 외측접착부(23)에 대응하는 형상이 구비된 상부형틀(4)로 구성되어 상/하부형틀(4,3)의 성형부(6,6`)에 FRP를 여러겹으로 도포하여 상부커버(2)와 하부커버(1)를 각각 성형한 후, 상부커버(2)와 하부커버(1)를 접착하게 된다.1 is an exploded perspective view showing a structure of a hollow structure according to the present invention, Figure 2 is an exploded perspective view showing the structure of a molding frame for the production of a hollow structure according to the invention, Figure 3 is a hollow according to the present invention It shows a perspective view showing a coupling structure of the lower mold and the auxiliary mold for the manufacture of the mold structure, the mold for manufacturing the hollow structure (S) according to the present invention is the first ceiling portion 11 of the lower cover (1) ) And an auxiliary mold (3) having a shape corresponding to the first side portion (12), and an auxiliary mold (13) which is coupled to an upper end of the lower mold (3) to form an inner adhesive part 13 of the lower cover (1). 5) and an upper mold 4 having a shape corresponding to the second ceiling portion 21, the second side portion 22 and the outer adhesive portion 23 of the upper cover 2, and the upper / lower mold 4 After applying FRP to the molding parts 6 and 6` of 3, the upper cover 2 and the lower cover 1 are respectively molded, Is bonded to the cover part (2) and the lower cover (1).

상기와 같은 성형틀을 이용한 차량용 중공형 구조물(S)의 제조방법에 대해 설명하면 다음과 같다.Referring to the manufacturing method of the vehicle hollow structure (S) using the molding frame as described above are as follows.

도 4 는 본 발명에 따른 중공형 구조물의 제작공정을 나타낸 공정도를 도시한 것으로, 본 발명에 따른 중공형 구조물(S)의 제조방법은 하부형틀(3)의 상부에 보조형틀(5)을 미도시된 통상의 클램프로 결합하는 단계와, 하부형틀(3)의 성형부(6)에 FRP를 여러겹 도포하여 일정두께(3~4mm)를 이루도록 하부커버(1)를 성형하는 단계와, 하부커버(1)가 경화된 후 보조형틀(5)을 하부형틀(3)로부터 분리하는 단계와, 상부형틀(4)의 성형부(6`)에 FRP를 여러겹 도포하여 일정두께(3~4mm)를 이루도록 상부커버(2)를 성형하는 단계와, 상기 상부커버(2)가 경화되기 전에 상부커버(2)의 외측접착부(23) 내면이 하부커버(1)의 내측접착부(13) 외면에 밀착되도록 상부형틀(4)을 하부형틀(3)의 상부에 씌우고 상부커버(2)와 하부커버(1)를 클램프로 체결하여 압착하는 단계와, 상부커버(2)와 하부커버(1)가 접착된 후 상부형틀(4)과 하부형틀(3)로부터 성형된 중공형 구조물(S)을 탈거하는 단계로 구성되었다.Figure 4 shows a process diagram showing the manufacturing process of the hollow structure according to the present invention, the manufacturing method of the hollow structure (S) according to the present invention pushes the auxiliary mold (5) on top of the lower mold (3) Coupling with the illustrated conventional clamp, and forming the lower cover (1) to form a predetermined thickness (3 ~ 4mm) by applying multiple layers of FRP to the molding portion 6 of the lower mold (3), After the cover 1 is cured, the auxiliary mold 5 is separated from the lower mold 3, and a plurality of layers of FRP are applied to the molding part 6` of the upper mold 4 by a predetermined thickness (3 to 4 mm). Forming an upper cover 2 so that the upper cover 2 is cured, and an inner surface of the outer adhesive portion 23 of the upper cover 2 is formed on an outer surface of the inner adhesive portion 13 of the lower cover 1 before the upper cover 2 is cured. Putting the upper mold 4 on the upper portion of the lower mold 3 so as to be in close contact with the upper mold 2 and fastening the upper cover 2 and the lower cover 1 by clamping, and After the lower cover 1 was bonded, the hollow structure S formed from the upper mold 4 and the lower mold 3 was removed.

상기 하부커버(1)와 상부커버(2)의 접착시 본 실시예에서는 상부형틀(4)에 도포된 FRP가 경화되기 전에 하부형틀(3)에 상부형틀(4)을 씌워 FRP의 접착력에 의해 상부커버(2)와 하부커버(1)를 접착하고 있으나, 상부커버(2)가 경화된 후 별도의 접착제를 이용하여 접착하는 것도 가능함은 물론이다.When the lower cover 1 and the upper cover 2 are bonded to each other, in this embodiment, the upper mold 4 is placed on the lower mold 3 before the FRP applied to the upper mold 4 is cured by the adhesive force of the FRP. Although the upper cover 2 and the lower cover 1 are bonded, it is also possible to bond using a separate adhesive after the upper cover 2 is cured.

도 5 는 본 발명에 따른 중공형 구조물의 부분 사시도를, 도 6 은 도 5 의 A단면을 나타낸 단면도를 도시한 것으로, 상부커버(2)의 제 2 천장부(21)에 형성된 외측접착부(23)의 내면과 하부커버(1)에 형성된 내측접착부(13)의 외면이 접착되어 상부커버(2)와 하부커버(1)의 접합라인이 중공형 구조물(S)의 저면에 위치하게 되며, 별도의 연결보강부 없이도 접합면적이 증가되어 중공형의 박스타입 구조물이 만들어진다.5 is a partial perspective view of the hollow structure according to the present invention, Figure 6 is a cross-sectional view showing a cross-section A of Figure 5, the outer adhesive portion 23 formed in the second ceiling portion 21 of the upper cover (2) The inner surface of the inner cover and the outer surface of the inner adhesive portion 13 formed on the lower cover 1 is bonded so that the joining line of the upper cover (2) and the lower cover (1) is located on the bottom of the hollow structure (S), The joint area is increased without connecting reinforcement to make a hollow box-type structure.

도 7 은 도 5 의 B단면을 나타낸 단면도를, 도 8 은 도 5 의 C단면을 나타낸 단면도를 도시한 것으로, 하부커버(1)의 제 1 측면부(12)의 저면에서 수평으로 연장되는 체결부(14)가 형성되고, 상기 체결부(14)로부터 상방향으로 연장되는 또 다른 내측접착부(13`)가 형성되어 상부커버(2)의 제 2 측면부(22)와 접착된다.7 is a cross-sectional view showing a cross-section B of Figure 5, Figure 8 is a cross-sectional view showing a cross-section C of Figure 5, the fastening portion extending horizontally from the bottom surface of the first side portion 12 of the lower cover (1) 14 is formed, and another inner adhesive portion 13 ′ extending upward from the fastening portion 14 is formed and adhered to the second side portion 22 of the upper cover 2.

본 발명은 상술한 특정의 바람직한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 고안이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위 내에 있게 된다.The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

상술한 바와 같이 본 발명에 따른 중공형 구조물은 상부커버와 하부커버의측면부가 겹침구조를 갖도록 구성되어 접합라인이 저면에 위치하여 외관이 미려하고, 별도의 연결보강부 없이도 충분한 접합면적을 얻을 수 있어 제작이 용이함과 동시에 생산시간 및 비용을 감소시킬 수 있으며, 접합면의 크랙 및 박리현상을 방지할 수 있는 등의 효과가 있는 것이다.As described above, the hollow structure according to the present invention is configured such that the side surfaces of the upper cover and the lower cover have an overlapping structure, and the joining line is located at the bottom so that the appearance is beautiful and a sufficient joining area can be obtained without a separate connecting reinforcing part. It is easy to manufacture and at the same time can reduce the production time and cost, and it is effective to prevent cracking and peeling of the joint surface.

Claims (2)

상부커버와 하부커버로 구성되고, FRP로 제작되는 차량용 중공형 구조물에 있어서,In the hollow structure for a vehicle composed of an upper cover and a lower cover, made of FRP, 상기 하부커버(1)는 제 1 천장부(11)의 양측에 저면방향으로 굽어진 제 1 측면부(12)가 일체형으로 형성되고, 상기 제 1 천장부(11)와 제 1 측면부(12)의 각측면에 외측방향으로 절곡된 형상으로서 제 1 천장부(11)와 제 1 측면부(12)에 일체형으로 형성된 내측접착부(13)가 구비되며, 상기 제 1 측면부(12)의 끝단에 외측 수평방향으로 연장되는 체결부(14)가 형성되고, 상기 체결부(14)로부터 상방향으로 연장되는 또 따른 내측접착부(13`)가 형성된 것으로 구성되며,The lower cover 1 has a first side portion 12 which is bent in the bottom direction on both sides of the first ceiling portion 11 is formed integrally, each side surface of the first ceiling portion 11 and the first side portion 12. Inwardly bent in the outward direction in the first ceiling portion 11 and the first side portion 12 is provided with an inner adhesive portion 13 formed integrally, and extends in the outer horizontal direction at the end of the first side portion 12 The fastening part 14 is formed, and consists of another inner adhesive part 13` extending upward from the fastening part 14, 상기 상부커버(2)는 제 1 천장부(11)와 제 1측면부에 일정간격 이격되도록 위치하는 제 2 천장부(21)와 제 2 측면부(22)가 일체형으로 형성되고, 상기 제 2 천장부(21)와 제 2 측면부(22)의 각측면에 내측방향으로 절곡된 형상으로서 상기 내측접착부(13)의 외면에 내면이 접착되는 외측접착부(23)가 제 2 천장부(21)와 제 2 측면부(22)에 일체형으로 형성된 것으로 구성되어 상부커버(2)와 하부커버(1)가 겹침구조를 이루도록 구성된 것을 특징으로 하는 겹침구조를 갖는 차량용 FRP 중공형 구조물.The upper cover 2 is integrally formed with the second ceiling portion 21 and the second side surface portion 22 which are positioned to be spaced apart at a predetermined interval from the first ceiling portion 11 and the first side portion, and the second ceiling portion 21. And an outer adhesive part 23 having an inner surface bonded to an outer surface of the inner adhesive part 13 as a shape that is bent inwardly on each side surface of the second side part 22, the second ceiling part 21 and the second side part 22. An FRP hollow structure for a vehicle having an overlapping structure, characterized in that the upper cover (2) and the lower cover (1) is configured to form an overlapping structure. 하부커버(1)의 제 1 천장부(11)와 제 1 측면부(12)에 대응하는 형상이 구비된 하부형틀(3)과, 상기 하부형틀(3)의 상단에 결합되어 하부커버(1)의 내측접착부(13)를 성형하는 보조형틀(5)과, 상부커버(2)의 제 2 천장부(21)와 제 2 측면부(22) 및 외측접착부(23)에 대응하는 형상이 구비된 상부형틀(4)로 구성된 성형틀을 이용하여 차량용 FRP 중공형 구조물을(S) 제작함에 있어서,A lower mold 3 having a shape corresponding to the first ceiling portion 11 and the first side portion 12 of the lower cover 1, and coupled to an upper end of the lower mold 3, An auxiliary mold 5 for forming the inner adhesive part 13 and an upper mold having a shape corresponding to the second ceiling part 21, the second side part 22, and the outer adhesive part 23 of the upper cover 2 ( In manufacturing the vehicle FRP hollow structure (S) using a molding frame composed of 4), 하부형틀(3)의 상부에 보조형틀(5)을 별도의 클램프로 결합하는 단계와,Combining the auxiliary mold 5 with a separate clamp on an upper portion of the lower mold 3; 하부형틀(3)의 성형부(6)에 FRP를 여러겹 도포하여 일정두께를 이루도록 하부커버(1)를 성형하는 단계와,Forming a lower cover 1 to form a predetermined thickness by applying multiple layers of FRP to the molding part 6 of the lower mold 3; 하부커버(1)가 경화된 후 보조형틀(5)을 하부형틀(3)로부터 분리하는 단계와,Separating the auxiliary mold 5 from the lower mold 3 after the lower cover 1 is cured; 상부형틀(4)의 성형부(6`)에 FRP를 여러겹 도포하여 일정두께를 이루도록 상부커버(2)를 성형하는 단계와,Forming an upper cover 2 to form a predetermined thickness by applying multiple layers of FRP to the forming part 6` of the upper mold 4; 상기 상부커버(2)가 경화되기 전에 상부커버(2)의 외측접착부(23) 내면이 하부커버(1)의 내측접착부(13) 외면에 밀착되도록 상부형틀(4)을 하부형틀(3)의 상부에 씌우고 상부커버(2)와 하부커버(1)를 별도의 클램프로 체결하여 압착하는 단계와,Before the upper cover 2 is cured, the upper mold 4 is placed on the lower mold 3 such that the inner surface of the outer adhesive 23 of the upper cover 2 is in close contact with the outer surface of the inner adhesive 13 of the lower cover 1. Putting on the upper cover and fastening the upper cover (2) and the lower cover (1) by a separate clamp, and 상부커버(2)와 하부커버(1)가 접착된 후 상부형틀(4)과 하부형틀(3)로부터 성형된 중공형 구조물(S)을 탈거하는 단계로 구성된 것을 특징으로 하는 겹침구조를 갖는 차량용 FRP 중공형 구조물의 제조방법.After the upper cover (2) and the lower cover (1) is bonded to the vehicle having an overlapping structure, characterized in that the step consisting of removing the hollow structure (S) formed from the upper mold (4) and the lower mold (3) Method for manufacturing FRP hollow structure.
KR10-2002-0040166A 2002-07-11 2002-07-11 Box type hollow structure made of FRP with overlap construction for vehicle and manufacturing method thereof KR100480494B1 (en)

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