KR101427786B1 - Door inner for vehicle - Google Patents

Door inner for vehicle Download PDF

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Publication number
KR101427786B1
KR101427786B1 KR1020120156784A KR20120156784A KR101427786B1 KR 101427786 B1 KR101427786 B1 KR 101427786B1 KR 1020120156784 A KR1020120156784 A KR 1020120156784A KR 20120156784 A KR20120156784 A KR 20120156784A KR 101427786 B1 KR101427786 B1 KR 101427786B1
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KR
South Korea
Prior art keywords
door
door inner
synthetic resin
welded
side portion
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KR1020120156784A
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Korean (ko)
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KR20140086380A (en
Inventor
김장수
김선웅
강학주
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(주)엠에스오토텍
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Priority to KR1020120156784A priority Critical patent/KR101427786B1/en
Publication of KR20140086380A publication Critical patent/KR20140086380A/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
    • B60J5/0412—Lower door structure
    • B60J5/0413—Inner panel, e.g. characterised by carrying components
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
    • 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
    • B60J5/0411—Beltline
    • 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
    • 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
    • B60J5/048—Doors arranged at the vehicle sides characterised by the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles

Abstract

본 발명은 소요되는 부품수를 줄이고 중량을 저감할 수 있도록 하면서도 강성이 필요한 부분에는 충분한 강성이 확보될 수 있도록 하여, 생산에 소요되는 비용을 저감하면서도 품질을 향상시킬 수 있도록 한다.The present invention makes it possible to reduce the number of parts required and reduce the weight, while ensuring sufficient rigidity in the parts where rigidity is required, thereby improving the quality while reducing the cost of production.

Description

차량용 도어인너{DOOR INNER FOR VEHICLE}{DOOR INNER FOR VEHICLE}

본 발명은 차량용 도어인너에 관한 것으로서, 보다 상세하게는 도어아웃터와 결합되어 차량의 도어를 구성하는 도어인너의 구조에 관한 기술이다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a door inner of a vehicle, and more particularly, to a structure of a door inner which is combined with a door outer so as to constitute a door of a vehicle.

도 1은 종래 도어인너의 구성을 도시한 것으로서, C자 형상의 래치부(500) 일측에 힌지페이스부(502)가 결합되고, 그 상측에 벨트인너부(504)가 결합되어 도어인너를 구성하는 바, 상기 힌지페이스부(502)는 힌지가 결합되어 차체에 대하여 도어의 회전이 가능하도록 지지하는 부위이므로, 상기 래치부(500)에 비하여 두껍고 강한 판재를 이용하고, 상기 벨트인너부(504)도 승강하는 윈도우글래스에 대하여 강한 지지상태를 확보해야 하는 부위이므로 별도의 부재로 상기 래치부(500)의 상측 부분에 덧대어지는 형태로 결합되는 구성을 취하고 있으며, 상기 힌지페이스부(502)에는 도시되지 않은 힌지부보강재가 더 장착되는 구성이다.
FIG. 1 illustrates a conventional door inner structure. A hinge face portion 502 is coupled to one side of a C-shaped latch portion 500, and a belt insertion portion 504 is coupled to the upper side of the latch portion 500, The hinge face portion 502 is a portion to which the hinge is coupled and supports the door so that the door can be rotated with respect to the vehicle body. Therefore, a thick and strong plate material is used in comparison with the latch portion 500, The hinge face portion 502 is coupled to the upper portion of the latch portion 500 by a separate member because it is a portion in which a strong supporting state is to be secured with respect to the window glass moving up and down. And a hinge reinforcement member not shown is further mounted.

따라서, 상기한 바와 같은 구성의 도어인너는 그 구성부품의 수가 많고, 따라서 그 조립 작업성이 상대적으로 떨어지며, 전체의 중량이 무거운 단점이 있다.
Therefore, the door-in-door having the above-described configuration has a large number of component parts, and the assembly workability thereof is relatively low, and the entire weight is heavy.

상기의 발명의 배경이 되는 기술로서 설명된 사항들은 본 발명의 배경에 대한 이해 증진을 위한 것일 뿐, 이 기술분야에서 통상의 지식을 가진 자에게 이미 알려진 종래기술에 해당함을 인정하는 것으로 받아들여져서는 안 될 것이다.It will be appreciated that those skilled in the art will appreciate that the described embodiments are provided merely for the purpose of promoting an understanding of the background of the present invention, It will not.

KRKR 10200300509621020030050962 AA

본 발명은 상기한 바와 같은 문제점을 해결하기 위하여 안출된 것으로서, 소요되는 부품수를 줄이고 중량을 저감할 수 있도록 하면서도 강성이 필요한 부분에는 충분한 강성이 확보될 수 있도록 하여, 생산에 소요되는 비용을 저감하면서도 품질을 향상시킬 수 있도록 한 차량용 도어인너를 제공함에 그 목적이 있다.SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to reduce the number of required parts and reduce the weight, The present invention provides a door inner door for a vehicle which can improve the quality of the door.

상기한 바와 같은 목적을 달성하기 위한 본 발명 차량용 도어인너는According to an aspect of the present invention,

도어힌지가 결합되는 도어인너의 일측부와, 도어벨트부를 구성하는 도어인너의 상측부가 일체로 형성된 제1부재와;A first member formed integrally with a side portion of a door inner to which a door hinge is coupled and an upper side portion of a door inner portion constituting the door belt portion;

상기 일측부의 맞은편 타측부 및 하측부가 일체로 형성된 제2부재와;A second member formed integrally with the first side portion and the lower side portion of the first side portion;

상기 제1부재와 제2부재가 상하로 결합된 상태에서, 상기 제1부재와 제2부재의 양측 및 하측을 감싸는 제3부재;A third member surrounding both sides of the first member and the second member and the lower member in a state where the first member and the second member are vertically engaged;

를 포함하여 구성된 것을 특징으로 한다.
And a control unit.

또한, 상기한 바와 같은 목적을 달성하기 위한 본 발명 차량용 도어인너 제작방법은According to another aspect of the present invention,

도어힌지가 결합되는 도어인너의 일측부와 도어벨트부를 구성하는 도어인너의 상측부가 한 몸체로 형성될 제1부재를 준비하는 제1부재준비단계와;A first member preparing step of preparing a first member, which is formed as a body, with one side of the door inner to which the door hinge is coupled and the upper side of the door inner part which constitutes the door belt part;

상기 제1부재의 일측부 맞은편의 타측부 및 하측부가 일체로 형성될 제2부재를 준비하는 제2부재준비단계와;A second member preparation step of preparing a second member integrally formed with the other side portion and the lower side portion of the first member facing the first side member;

상기 제1부재와 제2부재를 용접하여 결합하는 제1용접단계와;A first welding step of welding and bonding the first member and the second member;

상기 제1부재와 제2부재의 결합체를 프레스 가공하는 제1프레스단계와;A first pressing step of pressing a combined body of the first member and the second member;

상기 제3부재를 프레스 가공하는 제2프레스단계와;A second pressing step of pressing the third member;

상기 제1부재와 제2부재의 결합체에 상기 제3부재를 용접하여 결합하는 제2용접단계;A second welding step of welding and joining the third member to a combination of the first member and the second member;

를 포함하여 구성된 것을 특징으로 한다.And a control unit.

본 발명은 소요되는 부품수를 줄이고 중량을 저감할 수 있도록 하면서도 강성이 필요한 부분에는 충분한 강성이 확보될 수 있도록 하여, 생산에 소요되는 비용을 저감하면서도 품질을 향상시킬 수 있도록 한다.The present invention makes it possible to reduce the number of parts required and reduce the weight, while ensuring sufficient rigidity in the parts where rigidity is required, thereby improving the quality while reducing the cost of production.

도 1은 종래 기술에 의한 차량용 도어인너의 구조를 도시한 도면,
도 2는 본 발명에 따른 차량용 도어인너의 구조를 도시한 도면,
도 3은 도 2의 도어인너를 구성하는 부품들을 분해하여 도시한 도면,
도 4는 도 2의 반대방향에서 본 것을 도시한 도면,
도 5는 본 발명에 따른 차량용 도어인너 제작방법의 실시예를 도시한 순서도이다.1 is a view showing a structure of a door inner of a vehicle according to a conventional art,
2 is a view showing a structure of a door inner of a vehicle according to the present invention,
Fig. 3 is an exploded view of parts constituting the door inner of Fig. 2,
Fig. 4 is a view showing a view seen in the opposite direction of Fig. 2,
5 is a flowchart showing an embodiment of a door inner manufacturing method according to the present invention.

도 2 내지 도 4를 참조하면, 본 발명 차량용 도어인너의 실시예는, 도어힌지가 결합되는 도어인너(7)의 일측부와, 도어벨트부를 구성하는 도어인너(7)의 상측부가 일체로 형성된 제1부재(1)와; 상기 일측부의 맞은편 타측부 및 하측부가 일체로 형성된 제2부재(3)와; 상기 제1부재(1)와 제2부재(3)가 상하로 결합된 상태에서, 상기 제1부재(1)와 제2부재(3)의 양측 및 하측을 감싸는 제3부재(5)를 포함하여 구성된다.
2 to 4, an embodiment of a vehicle door inner according to the present invention is characterized in that one side of a door inner 7 to which a door hinge is coupled and an upper side of a door inner 7 constituting a door belt portion are integrally formed A first member (1); A second member (3) integrally formed with the opposite side portion and the lower side portion of the one side portion; And a third member 5 surrounding both sides of the first member 1 and the second member 3 in a state where the first member 1 and the second member 3 are vertically coupled .

즉, 본 발명은 도어인너(7)를 상기 제1부재(1)와 제2부재(3) 및 제3부재(5)의 3개의 부재로 완성할 수 있도록 한 것으로서, 상기 제1부재(1)가 도어인너(7)에서 가장 큰 강성을 필요로 하는 힌지결합부 및 도어벨트부를 한꺼번에 구성하도록 하고, 나머지 래치부 및 하측부는 상기 제2부재(3)로 구성하며, 상기 제3부재(5)로 상기 제1부재(1)와 제2부재(3) 결합체의 주위를 감싸는 형태로 구성하여, 강성이 필요한 부분에 충분한 강성을 제공하면서도 부품수를 줄이고 중량을 저감할 수 있도록 하면서, 가공상의 치수정밀도도 확보할 수 있도록 한 것이다.
That is, the present invention can complete the door inner 7 with the first member 1, the second member 3 and the third member 5, and the first member 1 ) Constitute the hinge joint portion and the door belt portion which require the greatest rigidity in the door inner 7 and the remaining latch portion and the lower portion are constituted by the second member 3 and the third member 5 ) Of the first member (1) and the second member (3) so as to cover the periphery of the combined body of the first member (1) and the second member (3) so as to reduce the number of parts and reduce the weight, So that dimensional accuracy can be secured.

상기 제1부재(1)와 제2부재(3)의 연결부는 사선을 이루며, 상기 제3부재(5)는 상기 제1부재(1)와 제2부재(3)를 내측에 감싸는 U자형상으로 형성된다.
The connecting part between the first member 1 and the second member 3 has a diagonal line and the third member 5 has a U-shape in which the first member 1 and the second member 3 are wrapped inward .

즉, 상기 제1부재(1)는 도어인너(7)에서 강성이 크게 요구되는 부위인 힌지결합부와 도어벨트부를 한꺼번에 구현하므로, 이 제1부재(1)의 강성을 충분히 확보하는 것만으로 종래에 별도의 벨트인너부 및 힌지부보강재 등을 덧붙이지 않아도 되도록 하고, 상기 제3부재(5)로 도어인너(7)의 외곽 치수를 정확하게 확보할 수 있도록 하는 것이다.
In other words, since the first member 1 simultaneously realizes the hinge coupling part and the door belt part, which are parts where the door inner 7 is required to have high rigidity, the rigidity of the first member 1 can be sufficiently secured, And it is possible to accurately secure the outer dimension of the door inner 7 with the third member 5. [0051] As shown in FIG.

따라서, 상기 제1부재(1)는 결합되는 도어힌지의 지지에 충분한 강성을 제공함과 아울러 도어벨트부에도 충분한 강성을 확보할 수 있도록 상기 제2부재(3)에 비하여 강한 강성을 가진 재료로 형성되고, 상기 제2부재(3)는 상기 제1부재(1)에 비하여 상대적으로 약한 강성을 가진 재료로 형성되어 충분한 강성과 중량 저감의 두 가지 기술적 효과를 양립시킬 수 있도록 한다.
Therefore, the first member 1 is formed of a material having a rigidity stronger than that of the second member 3 so as to provide sufficient rigidity for supporting the door hinge to be coupled and sufficient rigidity to the door belt portion And the second member 3 is formed of a material having a relatively low rigidity as compared with the first member 1 so that both technical effects of sufficient rigidity and weight reduction can be achieved.

상기 제1부재(1)는 상기 제2부재(3)에 비하여 두께가 두꺼운 핫스탬핑 재질로 이루어지며, The first member 1 is made of a hot stamping material having a thickness larger than that of the second member 3,

상기 제3부재(5)는 상기 제2부재(3)와 동일한 두께의 재료로 이루어져서, 상기 제1부재(1)와 제2부재(3) 결합체의 측단과 하단을 감싸는 상태로 중첩되어 결합되도록 하는 것이 바람직할 것이다.
The third member 5 is made of a material having the same thickness as that of the second member 3 so as to be overlapped and joined in a state of wrapping the side end and the bottom end of the combined body of the first member 1 and the second member 3 .

도 5를 참조하면, 상기한 바와 같은 본 발명 차량용 도어인너(7)를 제조하는 방법은, 도어힌지가 결합되는 도어인너(7)의 일측부와 도어벨트부를 구성하는 도어인너(7)의 상측부가 한 몸체로 형성될 제1부재(1)를 준비하는 제1부재준비단계(S10)와; 상기 제1부재(1)의 일측부 맞은편의 타측부 및 하측부가 일체로 형성될 제2부재(3)를 준비하는 제2부재준비단계(S20)와; 상기 제1부재(1)와 제2부재(3)를 용접하여 결합하는 제1용접단계(S30)와; 상기 제1부재(1)와 제2부재(3)의 결합체를 프레스 가공하는 제1프레스단계(S40)와; 상기 제3부재(5)를 프레스 가공하는 제2프레스단계(S50)와; 상기 제1부재(1)와 제2부재(3)의 결합체에 상기 제3부재(5)를 용접하여 결합하는 제2용접단계(S60)를 포함하여 구성된다.
5, the method for manufacturing the door member 7 for a vehicle according to the present invention as described above is characterized in that one side of the door member 7 to which the door hinge is engaged is positioned on the upper side of the door member 7 constituting the door- (S10) for preparing a first member (1) to be formed as an additional body; A second member preparing step (S20) of preparing a second member (3) integrally formed with the other side portion and the lower side portion of the first member (1) facing one side; A first welding step (S30) of welding and bonding the first member (1) and the second member (3); A first pressing step (S40) of pressing a combined body of the first member (1) and the second member (3); A second pressing step (S50) of pressing the third member (5); And a second welding step (S60) of welding and joining the third member (5) to the combined body of the first member (1) and the second member (3).

즉, 상기 제1부재준비단계(S10)와 제2부재준비단계(S20)에 의해 상기 제1부재(1)와 제2부재(3)를 준비하여, 상기 제1용접단계(S30)에 의해 이들 두 부재를 일체화한 후, 상기 제1프레스단계(S40)에 의해 상기 제1부재(1)와 제2부재(3)의 구체적 형상을 성형하고, 상기 제3부재(5)를 상기 제2용접단계(S60)에 의해 결합하는 것이다.
That is, the first member 1 and the second member 3 are prepared by the first member preparing step S10 and the second member preparing step S20, and the first welding step S30 The first member 1 and the second member 3 are formed in a specific shape by the first pressing step S40 after the two members are integrated and the third member 5 is molded into the second And is welded in the welding step S60.

상기 제1용접단계(S30)에서 용접되는 상기 제1부재(1)와 제2부재(3)의 연결부는 사선을 이루면서 용접되며, 상기 제2용접단계(S60)에서, 상기 제3부재(5)는 내측 가장자리가 상기 제1부재(1)와 제2부재(3) 결합체의 측방 및 하방의 외측 가장자리와 중첩된 상태로 용접된다.
The connecting portion of the first member 1 and the second member 3 welded in the first welding step S30 is welded obliquely and in the second welding step S60 the third member 5 Are welded with their inner edges overlapping with the lateral edges of the combination of the first member (1) and the second member (3).

참고로 도 2의 점선부분은 상기 제3부재(5)가 상기 제1부재(1) 및 제2부재(3) 결합체에 용접되는 부분을 표시한 것이다.
For reference, the dotted line portion in FIG. 2 indicates a portion where the third member 5 is welded to the first member 1 and the second member 3 combination.

물론, 상기 제1부재(1)는 상기 제2부재(3)에 비하여 두께가 두꺼운 핫스탬핑 재질로 이루어지며, 상기 제3부재(5)는 상기 제2부재(3)와 동일한 두께의 재료로 이루어지는 것이 바람직할 것이다.
Of course, the first member 1 is made of a hot stamping material having a thickness larger than that of the second member 3, and the third member 5 is made of a material having the same thickness as that of the second member 3 .

본 발명은 특정한 실시예에 관련하여 도시하고 설명하였지만, 이하의 특허청구범위에 의해 제공되는 본 발명의 기술적 사상을 벗어나지 않는 한도 내에서, 본 발명이 다양하게 개량 및 변화될 수 있다는 것은 당업계에서 통상의 지식을 가진 자에게 있어서 자명할 것이다.While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

1; 제1부재
3; 제2부재
5; 제3부재
7; 도어인너
S10; 제1부재준비단계
S20; 제2부재준비단계
S30; 제1용접단계
S40; 제1프레스단계
S50; 제2프레스단계
S60; 제2용접단계One; The first member
3; The second member
5; The third member
7; Door Inner
S10; The first member preparation step
S20; The second member preparation step
S30; The first welding step
S40; The first press step
S50; The second press step
S60; Second welding step

Claims (7)

도어힌지가 결합되는 도어인너(7)의 일측부와, 도어벨트부를 구성하는 도어인너(7)의 상측부가 일체로 형성된 제1부재(1)와;
상기 일측부의 맞은편 타측부 및 하측부가 일체로 형성된 제2부재(3)와;
상기 제1부재(1)와 제2부재(3)가 상하로 결합된 상태에서, 상기 제1부재(1)와 제2부재(3)의 양측 및 하측을 감싸는 제3부재(5);를 포함하여 구성되며,
상기 제1부재(1)와 제2부재(3)의 연결부는 사선을 이루고;
상기 제3부재(5)는 상기 제1부재(1)와 제2부재(3)를 내측에 감싸는 U자형상으로 형성되는 것
을 특징으로 하는 차량용 도어인너.A first member 1 formed integrally with one side of a door inner 7 to which a door hinge is coupled and an upper side of a door inner 7 constituting a door belt portion;
A second member (3) integrally formed with the opposite side portion and the lower side portion of the one side portion;
A third member 5 surrounding both sides of the first member 1 and the second member 3 and the lower side in a state in which the first member 1 and the second member 3 are vertically coupled to each other; ≪ / RTI >
The connecting portion of the first member (1) and the second member (3) is oblique;
The third member 5 is formed in a U-shape that wraps the first member 1 and the second member 3 inward
Wherein the door is made of a synthetic resin. 삭제delete 청구항 1에 있어서,
상기 제1부재(1)는 결합되는 도어힌지의 지지에 충분한 강성을 제공함과 아울러 도어벨트부에도 충분한 강성을 확보할 수 있도록 상기 제2부재(3)에 비하여 강한 강성을 가진 재료로 형성되고;
상기 제2부재(3)는 상기 제1부재(1)에 비하여 상대적으로 약한 강성을 가진 재료로 형성된 것
을 특징으로 하는 차량용 도어인너.The method according to claim 1,
The first member 1 is formed of a material having a rigidity higher than that of the second member 3 so as to provide sufficient rigidity to support the door hinge to be engaged and to secure sufficient rigidity on the door belt portion;
The second member (3) is formed of a material having a relatively low rigidity as compared with the first member (1)
Wherein the door is made of a synthetic resin. 청구항 3에 있어서,
상기 제1부재(1)는 상기 제2부재(3)에 비하여 두께가 두꺼운 핫스탬핑 재질로 이루어지며;
상기 제3부재(5)는 상기 제2부재(3)와 동일한 두께의 재료로 이루어져서, 상기 제1부재(1)와 제2부재(3) 결합체의 측단과 하단을 감싸는 상태로 중첩되어 결합되는 것
을 특징으로 하는 차량용 도어인너.The method of claim 3,
The first member (1) is made of a hot stamping material having a thickness larger than that of the second member (3);
The third member 5 is made of a material having the same thickness as that of the second member 3 and is overlapped and joined in a state of wrapping the side end and the bottom end of the combined body of the first member 1 and the second member 3 that
Wherein the door is made of a synthetic resin. 도어힌지가 결합되는 도어인너(7)의 일측부와 도어벨트부를 구성하는 도어인너(7)의 상측부가 한 몸체로 형성될 제1부재(1)를 준비하는 제1부재준비단계(S10)와;
상기 제1부재(1)의 일측부 맞은편의 타측부 및 하측부가 일체로 형성될 제2부재(3)를 준비하는 제2부재준비단계(S20)와;
상기 제1부재(1)와 제2부재(3)를 용접하여 결합하는 제1용접단계(S30)와;
상기 제1부재(1)와 제2부재(3)의 결합체를 프레스 가공하는 제1프레스단계(S40)와;
상기 제1부재(1)와 제2부재(3)의 양측 및 하측을 감싸도록 형성될 제3부재(5)를 프레스 가공하는 제2프레스단계(S50)와;
상기 제1부재(1)와 제2부재(3)의 결합체에 상기 제3부재(5)를 용접하여 결합하는 제2용접단계(S60);를 포함하여 구성되며,
상기 제1용접단계(S30)에서 용접되는 상기 제1부재(1)와 제2부재(3)의 연결부는 사선을 이루면서 용접되며;
상기 제2용접단계(S60)에서, 상기 제3부재(5)는 내측 가장자리가 상기 제1부재(1)와 제2부재(3) 결합체의 측방 및 하방의 외측 가장자리와 중첩된 상태로 용접되는 것
을 특징으로 하는 차량용 도어인너 제작방법.A first member preparing step S10 of preparing a first member 1 which is formed as a body with one side of the door inner 7 to which the door hinge is coupled and the upper side of the door inner 7 constituting the door belt part ;
A second member preparing step (S20) of preparing a second member (3) integrally formed with the other side portion and the lower side portion of the first member (1) facing one side;
A first welding step (S30) of welding and bonding the first member (1) and the second member (3);
A first pressing step (S40) of pressing a combined body of the first member (1) and the second member (3);
A second pressing step (S50) of pressing a third member (5) to be formed so as to surround both sides of the first member (1) and the second member (3);
And a second welding step (S60) in which the third member (5) is welded to the combined body of the first member (1) and the second member (3)
The connecting portions of the first member 1 and the second member 3 welded in the first welding step S30 are welded in an oblique direction;
In the second welding step (S60), the third member (5) is welded with the inner edge overlapping with the lateral edges and the lower outer edges of the first member (1) and the second member (3) that
Wherein the door is made of a synthetic resin. 삭제delete 청구항 5에 있어서,
상기 제1부재(1)는 상기 제2부재(3)에 비하여 두께가 두꺼운 핫스탬핑 재질로 이루어지며;
상기 제3부재(5)는 상기 제2부재(3)와 동일한 두께의 재료로 이루어지는 것
을 특징으로 하는 차량용 도어인너 제작방법.The method of claim 5,
The first member (1) is made of a hot stamping material having a thickness larger than that of the second member (3);
The third member (5) is made of a material having the same thickness as the second member (3)
Wherein the door is made of a synthetic resin.
KR1020120156784A 2012-12-28 2012-12-28 Door inner for vehicle KR101427786B1 (en)

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KR20040047615A (en) * 2002-11-26 2004-06-05 미쯔비시 지도샤 고교 가부시끼가이샤 Vehicle Door
JP2004352083A (en) * 2003-05-29 2004-12-16 Mazda Motor Corp Door structure of automobile

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Publication number Priority date Publication date Assignee Title
KR20040047615A (en) * 2002-11-26 2004-06-05 미쯔비시 지도샤 고교 가부시끼가이샤 Vehicle Door
JP2004352083A (en) * 2003-05-29 2004-12-16 Mazda Motor Corp Door structure of automobile

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