KR102474385B1 - Side body strucuture - Google Patents

Abstract

A side body structure is disclosed. A side body structure according to an exemplary embodiment of the present disclosure includes: i) a lane inner assy including a roof side inner and a roof side outer lane coupled to an upper portion of a center pillar, and ii) a roof side outer lane Including a quarter inner assy including a rear pillar outer lane combined with the rear pillar, a seat belt lane coupled with the rear pillar outer lane, and a quarter inner upper coupled with the seat belt lane and the rear pillar outer lane. In addition, the roof side inner, the seat belt lane, and the quarter inner upper overlap each other and can be welded together.

Description

Side body structure {SIDE BODY STRUCUTURE}

An embodiment of the present invention relates to a side body structure, and more particularly, to a side body structure with improved coupling between a lane inner assembly and a quarter inner assembly.

In general, the skeleton of an automobile includes a pillar serving as a support. A pillar refers to a part of a skeleton of a vehicle supporting a roof.

The pillars are divided into a front pillar, a center pillar, and a rear pillar in order from the front of the vehicle. The front pillar, center pillar, and rear pillar are sometimes referred to as A-pillar, B-pillar, and C-pillar in order, and the rear pillar is also referred to as a quarter pillar. Meanwhile, the rear part of the vehicle body where the rear pillar is formed is called a rear quarter.

In recent years, interest in driving performance and riding comfort of automobiles has increased. In order to improve the driving performance and riding comfort, it is necessary to improve the rigidity of the skeleton of the vehicle.

That is, deformation may occur in the skeleton of the vehicle according to driving conditions of the vehicle, and such deformation may adversely affect the driving performance and riding comfort. Therefore, studies are being actively conducted to minimize the amount of deformation of the skeleton and to improve responsiveness to return the deformed skeleton to its original position.

Matters described in this background art section are prepared to enhance understanding of the background of the invention, and may include matters that are not prior art already known to those skilled in the art to which this technique belongs.

Embodiments of the present invention are intended to provide a side body structure capable of increasing skeletal rigidity through multiple couplings on the rear pillar side.

In the side body structure according to an embodiment of the present invention, i) a lane inner assy including a roof side inner and a roof side outer lane coupled to an upper portion of a center pillar, and ii) combined with the roof side outer lane A quarter inner assy including a rear pillar outer lane, a seat belt lane coupled to the rear pillar outer lane, and a quarter inner upper coupled to the seat belt lane and the rear pillar outer lane. In addition, the roof side inner, the seat belt lane, and the quarter inner upper may overlap each other and be welded together.

In addition, in the side body structure according to the embodiment of the present invention, the rear pillar outer lane and the quarter inner upper may be coupled to each other to form a rear pillar.

In addition, in the side body structure according to the embodiment of the present invention, the seat belt lane may form an extension extending above the rear pillar between the rear pillar outer lane and the quarter inner upper.

In addition, in the side body structure according to the embodiment of the present invention, the roof side inner, the seat belt lane, and the quarter inner upper may form welding ends overlapping each other in three layers.

In addition, in the side body structure according to an embodiment of the present invention, the overlapping weld ends of the roof side inner, seat belt lane, and quarter inner upper are first weld holes formed in the roof side outer lane. can be welded to each other through

In addition, in the side body structure according to an embodiment of the present invention, the roof side outer lane and the rear pillar outer lane may overlap each other and be welded together.

In addition, in the side vehicle body structure according to an embodiment of the present invention, the roof side outer lane and the rear pillar outer lane may form welding ends overlapping each other.

In addition, in the side body structure according to an embodiment of the present invention, the overlapping welding ends of the roof side outer lane and the rear pillar outer lane are mutually connected to the quarter inner upper and the seat belt lane It may be welded through the formed second welding hole.

In addition, in the side body structure according to an embodiment of the present invention, the overlapping welding ends of the roof side outer lane and the rear pillar outer lane form three overlapping parts, respectively, and the overlapping of the three surfaces The parts may be welded together.

In addition, in the side body structure according to an embodiment of the present invention, the lane inner assembly and the quarter inner assembly are pre-coupled, and the lane inner assembly and the quarter inner assembly coupled to each other are assembled The side outer panel may be coupled to the rear.

Embodiments of the present invention can secure the coupling and durability of the coupling structure of the upper part of the rear pillar by multiple coupling of the rain inner assembly and the quarter inner assembly through welding, and through not applying a tape sealer Cost reduction can be achieved, and a joint problem at the top of the rear pillar can be improved.

In addition, effects that can be obtained or predicted due to the embodiments of the present invention will be directly or implicitly disclosed in the detailed description of the embodiments of the present invention. That is, various effects expected according to an embodiment of the present invention will be disclosed within the detailed description to be described later.

Since these drawings are for reference in explaining exemplary embodiments of the present invention, the technical idea of the present invention should not be construed as being limited to the accompanying drawings.
1 is a view showing a side vehicle body structure according to an embodiment of the present invention.
2 is a perspective view illustrating a coupling structure of a lane inner assy and a quarter inner assy applied to a side body structure according to an embodiment of the present invention.
3 is an exploded perspective view illustrating a coupling structure of a lane inner assembly and a quarter inner assembly applied to a side body structure according to an embodiment of the present invention.
FIG. 4 is a cross-sectional view taken along line AA of FIG. 2 illustrating a coupling structure of a lane inner assembly and a quarter inner assembly applied to a side body structure according to an embodiment of the present invention.
FIG. 5 is a cross-sectional view taken along line BB of FIG. 2 showing a coupling structure of a lane inner assembly and a quarter inner assembly applied to a side body structure according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein.

In order to clearly describe the present invention, parts irrelevant to the description are omitted, and the same reference numerals are assigned to the same or similar components throughout the specification.

Since the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of description, the present invention is not necessarily limited to what is shown in the drawings, and the thickness is enlarged to clearly express various parts and regions.

And, in the following detailed description, the names of the components are divided into first, second, etc. to classify them based on the relationship in which the components are the same, and the order is not necessarily limited in the following description.

Throughout the specification, when a part includes a certain component, this means that it may further include other components without excluding other components unless otherwise stated.

In addition, terms such as ...part, ...means described in the specification mean a comprehensive unit of configuration that performs at least one function or operation.

1 is a view showing a side vehicle body structure according to an embodiment of the present invention.

Referring to FIG. 1 , a side body structure 100 according to an embodiment of the present invention is a side structure constituting both side surfaces of a vehicle body and can be applied to various types of vehicles.

In the art, the vehicle width direction is referred to as the L direction, the vehicle body front and rear direction as the T direction, and the vehicle body height direction as the H direction. However, in the embodiment of the present invention, instead of setting the LTH direction as described above as the reference direction, the vehicle width direction, the front-rear direction of the vehicle body, and the vertical direction will be set, and the following components will be described.

Furthermore, an end (one/one end or the other/one end) in the following may be defined as either end, and a certain portion (one/one end or the other/one end) including the end. may be defined.

The side vehicle body structure 100 according to an embodiment of the present invention is configured to improve durability of the side structure through welding without using a tape sealer.

For this purpose, the side body structure 100 according to an embodiment of the present invention is basically composed of a rain inner assy 10, a quarter inner assy 50, and a side outer panel 70, A description of each component is as follows.

2 is a perspective view showing a coupling structure of a lane inner assembly and a quarter inner assembly applied to a side body structure according to an embodiment of the present invention, and FIG. 3 is a side body structure according to an embodiment of the present invention It is an exploded perspective view showing the combined structure of the applied rain inner assy and quarter inner assy.

Referring to FIGS. 1 to 3 , in the embodiment of the present invention, the lane inner assy 10 configures the front lane inner and center lane inner parts of the vehicle body side structure.

The rain inner assy 10 includes a roof side 11, a side sill 13, a front pillar 15 connecting the roof side 11 and the side sill 13 in the vertical direction, and a center pillar 17 ) is included.

Here, the roof side 11 includes a roof side inner 21 coupled to the upper portion of the center pillar 17 and a roof side outer lane 23.

In an embodiment of the present invention, the quarter inner assembly 50 constitutes the rear quarter inner part of the vehicle body side structure and is combined with the rain inner assembly 10 .

The quarter inner assembly 50 includes a rear pillar outer lane 51, a seat belt lane 53, a quarter inner upper 55, and a quarter inner lower 57.

The rear pillar outer lane 51 is combined with a quarter inner lower 57 to be described later, and coupled with the roof side outer lane 23 of the lane inner assy 10.

The seat belt lane 53 is for reinforcing the seat belt assembly mounted on the seat, and is combined with the rear pillar outer lane 51, and the roof side inner 21 of the lane inner assembly 10 and are combined

The quarter inner upper 55 is combined with the seat belt lane 53 and the rear pillar outer lane 51, and is coupled with the roof side inner 21 of the lane inner assembly 10.

In addition, the quarter inner lower 57 forms the wheel house 58, and is combined with the quarter inner upper 55 and the rear pillar outer lane 51 as described above.

Here, the rear pillar outer lane 51 and the quarter inner upper 55 are coupled to each other with the seat belt lane 53 interposed therebetween to form a rear pillar 59.

In addition, the seat belt lane 53 is coupled to the rear pillar outer lane 51 and the quarter inner upper 55 between the rear pillar outer lane 51 and the quarter inner upper 55, the lane An extension part 54 extending to the upper part of the rear pillar 59 is integrally formed so that it can be coupled with the roof side inner 21 of the inner assembly 10.

Meanwhile, the rain inner assy 10 and the quarter inner assy 50 as described above are pre-coupled to each other.

On the other hand, in the embodiment of the present invention, the side outer panel 70 is later coupled to the assembly of the rain inner assy 10 and the quarter inner assy 50 which are previously coupled to each other.

That is, the side outer panel 70 includes the rain inner assembly 10 and the quarter inner assembly 50 in a state in which the lane inner assembly 10 and the quarter inner assembly 50 are assembled in advance. The assembly of is coupled to the trailing outer side.

Hereinafter, the coupling structure of the rain inner assy 10 and the quarter inner assy 50 configured as described above will be described in detail with reference to the previously disclosed drawings and accompanying drawings.

FIG. 4 is a cross-sectional view taken along the line A-A of FIG. 2 illustrating a coupling structure of a lane inner assembly and a quarter inner assembly applied to a side body structure according to an embodiment of the present invention.

3 and 4, in the coupling structure of the rain inner assy 10 and the quarter inner assy 50 according to the embodiment of the present invention, the loop side inner of the rain inner assy 10 (21), the seat belt lane 53 of the quarter inner assembly 50 and the quarter inner upper 55 overlap each other and are welded together.

In the above, the roof side inner 21, the seat belt lane 53, and the quarter inner upper 55 are overlapped in three layers on the upper side of the rear pillar 59 and welded together. Accordingly, the loop side inner 21, the seat belt lane 53, and the quarter inner upper 55 form first welding ends 31, 32, and 33 overlapping each other in three layers.

The first welding ends 31, 32, and 33 of the loop side inner 21, the seat belt rain 53, and the quarter inner upper 55 overlapping each other in this way are loops of the rain inner assy 10. Through the first welding hole 25 formed in the side outer lane 23, three layers may be welded together.

In an embodiment of the present invention, for example, a two-way spot welding machine widely known in the art passes through the first welding hole 25, and the overlapping three-ply first welding ends 31, 32, and 33 are replaced by a spot welding machine. can be spot welded.

Therefore, in the embodiment of the present invention, the first welding ends 31, 32, and 33 of the roof side inner 21, the seat belt lane 53, and the quarter inner upper 55 overlap in three layers and are welded together. One welding part 61 can be formed.

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 2 showing a coupling structure of a lane inner assembly and a quarter inner assembly applied to a side body structure according to an embodiment of the present invention.

3 and 5, in the coupling structure of the rain inner assy 10 and the quarter inner assy 50 according to the embodiment of the present invention, the loop side outer of the rain inner assy 10 The lanes 23 and the rear pillar outer lanes 51 of the quarter inner assy 50 overlap each other and are welded together.

Here, the roof side outer lane 23 and the rear pillar outer lane 51 form overlapping second welding ends 71 and 72 (refer to FIGS. 2 and 3 below), respectively. The overlapping second welding ends 71 and 72 of the roof side outer lane 23 and the rear pillar outer lane 51 are mutually connected to the seat belt lane 53 and the quarter inner upper 55 It can be welded through the formed second welding hole 63 .

Furthermore, the overlapping second welding ends 71 and 72 of the roof side outer lane 23 and the rear pillar outer lane 51 as described above form three overlapping portions 75, respectively. .

In an embodiment of the present invention, for example, a two-way spot welding machine widely known in the art passes through the second welding hole 63, and the three-sided overlapping portion 75 in the overlapping second welding ends 71 and 72 ) can be spot welded respectively through a spot welder.

Accordingly, in the embodiment of the present invention, the three overlapping portions 75 of the overlapping second welding ends 71 and 72 of the roof side outer lane 23 and the rear pillar outer lane 51 are welded together 3-point second welding parts 62 may be formed.

Hereinafter, the effect of the side body structure 100 according to the embodiment of the present invention configured as described above will be described in detail.

First, in the embodiment of the present invention, the roof side inner 21 of the rain inner assy 10, the seat belt rain 53 of the quarter inner assy 50 and the quarter inner upper 55 are three-layered It has a coupling structure of the upper part of the rear pillar 59 that is welded together.

In such a coupling structure of the upper part of the rear pillar 59, the roof side inner 21 and the seat belt lane are connected through the first welding hole 25 formed in the roof side outer lane 23 of the lane inner assy 10. The first welding ends 31, 32, and 33 of the fr 53 and the quarter inner upper 55 are welded together in three layers.

Meanwhile, in the prior art as a comparative example, the rain inner assy 10, the quarter inner assy 50, and the side outer panel 70 are simultaneously coupled.

Accordingly, in the comparative example, since the welding connection of the rain inner assy 10 and the quarter inner assy 50 is not possible, the roof side inner 21 of the rain inner assy 10 and the quarter inner assy 50 The quarter inner upper 55 of ) is coupled through a tape sealer.

However, in the embodiment of the present invention, the rain inner assy 10 and the quarter inner assy 50 are pre-coupled, and the side The outer panel 70 has a post-coupled structure.

Thus, in the embodiment of the present invention, the loop side inner 21 of the rain inner assy 10, the seat belt rain 53 of the quarter inner assy 50 and the quarter inner upper 55 are welded in three layers Since it is combined, the tape sealer in the comparative example can be deleted.

Therefore, in the embodiment of the present invention, it is possible to reduce the cost of assembling the side body structure 100 and reduce the number of assembly personnel, and to prevent the occurrence of noise and decrease in durability due to the application of the tape sealer.

Furthermore, in an embodiment of the present invention, the roof side outer lane 23 of the lane inner assembly 10 and the rear pillar outer lane 51 of the quarter inner assembly 50 are welded to the rear pillar ( 59) has an upper bonding structure.

In such a coupling structure of the upper part of the rear pillar 59, the roof side outer rail 23 and the rear through the second welding hole 63 formed to be mutually connected to the seat belt lane 53 and the quarter inner upper 55. At the overlapping second welding ends 71 and 72 of the filler outer lane 51, the three overlapping portions 75 are welded together.

Therefore, in the embodiment of the present invention, unlike the prior art as a comparative example, since the roof side outer lane 23 and the rear pillar outer lane 51 can be welded together, the lane inner assy 10 and the quarter inner The binding property of the assay 50 can be increased.

Here, in the coupling structure of the upper part of the rear pillar 59 as described above, as the extension part 54 extending (overlapping) to the upper part of the rear pillar 59 is formed in the seat belt lane 53, the lane Deterioration in coupling stiffness of the upper part of the rear pillar 59 due to application of the welding holes 25 and 63 for welding the inner assembly 10 and the quarter inner assembly 50 can be prevented.

According to the side body structure 100 according to the embodiment of the present invention as described so far, the rear pillar 59 is formed by multiple coupling of the lane inner assembly 10 and the quarter inner assembly 50 through welding. Coupling and durability of the upper coupling structure may be secured, cost reduction may be achieved through not applying a tape sealer, and joint problems at the upper portion of the rear pillar 53 may be improved.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and it is possible to carry out various modifications within the scope of the claims and detailed description of the invention and the accompanying drawings, and this is also the present invention. It goes without saying that it falls within the scope of the invention.

10: Rain inner assy 11: Roof side
13: side sill 15: front pillar
17: center pillar 21: roof side inner
23: roof side outer lane 25: first welding hole
31, 32, 33: first welding step 50: quarter inner assy
51: Rear pillar outer lane 53: Seat belt lane
54: extension 55: quarter inner upper
57: Quarter Inner Lower 58: Wheel House
59: rear pillar 61: first welded portion
62: second welded portion 63: second welded hole
70: side outer panel 71, 72: second welding end
75: overlapping portion 100: side body structure

Claims (9)

A rain inner assy including a roof side inner and a roof side outer rain that are coupled to the top of the center pillar; and
A rear pillar outer lane coupled to the roof side outer lane, a seat belt lane coupled to the rear pillar outer lane, and a quarter inner upper coupled to the seat belt lane and the rear pillar outer lane, Quarter inner assy comprising; Including,
The loop side inner, the seat belt lane, and the quarter inner upper overlap each other and are welded together,
The side body structure of claim 1 , wherein the roof side inner, the seat belt lane, and the quarter inner upper each form a welding end overlapping each other in three layers. According to claim 1,
The rear pillar outer lane and the quarter inner upper are mutually coupled to form a rear pillar,
The side body structure of claim 1 , wherein the seat belt lane forms an extension portion extending to an upper portion of the rear pillar between the rear pillar outer lane and the quarter inner upper. delete According to claim 1,
The welding stages overlapping each other,
A side body structure welded to each other through a first welding hole formed in the roof side outer lane. According to claim 1,
A side body structure in which the roof side outer lane and the rear pillar outer lane are overlapped and welded together. According to claim 5,
The side body structure of claim 1, wherein the roof side outer lane and the rear pillar outer lane form overlapping welding ends. According to claim 6,
The welding stages overlapping each other,
A side body structure welded through a second welding hole formed to be mutually connected to the quarter inner upper and the seat belt lane. According to claim 6,
The weld ends overlapping each other form overlapping portions on three surfaces, and the overlapping portions on the three surfaces are welded to each other. According to claim 1,
The rain inner assy and the quarter inner assy are pre-coupled,
A side body structure in which a side outer panel is retroactively coupled to an assembly of the lane inner assembly and the quarter inner assembly coupled to each other.

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