KR101765607B1 - Vehicle body reinforcing structure and assembling method thereof - Google Patents

Vehicle body reinforcing structure and assembling method thereof Download PDF

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Publication number
KR101765607B1
KR101765607B1 KR1020150174184A KR20150174184A KR101765607B1 KR 101765607 B1 KR101765607 B1 KR 101765607B1 KR 1020150174184 A KR1020150174184 A KR 1020150174184A KR 20150174184 A KR20150174184 A KR 20150174184A KR 101765607 B1 KR101765607 B1 KR 101765607B1
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KR
South Korea
Prior art keywords
vehicle
front side
attached
compliance
welded
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Application number
KR1020150174184A
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Korean (ko)
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KR20170067476A (en
Inventor
이선주
Original Assignee
현대자동차 주식회사
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Priority to KR1020150174184A priority Critical patent/KR101765607B1/en
Publication of KR20170067476A publication Critical patent/KR20170067476A/en
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Publication of KR101765607B1 publication Critical patent/KR101765607B1/en

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    • 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
    • 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
    • B62D25/08—Front or rear portions
    • 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
    • B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
    • B62D25/2018—Floors or bottom sub-units in connection with other superstructure subunits the subunits being front structures

Abstract

A vehicle body reinforcing structure and a method of assembling the same are disclosed. A torque box is inserted and attached to the front side rear lower member formed to extend along the longitudinal direction of the vehicle and disposed laterally along the vehicle width direction; The torque box is attached to a front side seat member formed to extend along the longitudinal direction of the vehicle, and can effectively cope with the frontal and offset collision of the vehicle.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body reinforcing structure,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vehicle body reinforcing structure, and more particularly, to a vehicle body reinforcing structure and a method of assembling the same that improve the collision performance of a vehicle by reinforcing the rigidity of a front side member.

Generally, a vehicle body of a vehicle is formed to extend along the longitudinal direction of the vehicle, and includes side members disposed on both sides of the vehicle along the width direction thereof.

The side members may be divided into a front side member positioned forwardly along the longitudinal direction of the vehicle and a rear side member positioned rearward.

The side member includes a side inner member formed to extend along the longitudinal direction of the vehicle and positioned inward along the width direction of the vehicle; And a side outer member that is formed to extend along the longitudinal direction of the vehicle and is located outside along the width direction of the vehicle and forms a closed end surface in association with the side inner member.

Since the side member is formed to extend along the longitudinal direction of the vehicle, it is an important body component that absorbs and reduces impact energy while being properly compressively deformed in the longitudinal direction of the vehicle when a frontal collision or rear collision occurs in the vehicle.

In recent years, the regulations of each country have been strengthened with respect to the small offset collision, and the structural member of the side member is required to reinforce the stiffness of the offset collision. For example, the impact energy is absorbed by the front side rear lower member of the rear- And a torque box which can be operated by the user.

However, in the conventional crash-resistant vehicle body reinforcing structure using the torque box, there are many constituent parts of the torque box, which is disadvantageous to the weight and cost of the vehicle, and the weld stiffness of the torque box is weak, there was.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a vehicle occupant protection apparatus and a vehicle front- And an object of the present invention is to provide a vehicle body reinforcement structure and a method of assembling the vehicle body reinforcement structure that can more securely protect a passenger by increasing the stiffness corresponding to frontal and offset collision.

A vehicle body reinforcing structure according to an embodiment of the present invention includes a torque box inserted and attached to a front side rear lower member formed to extend along a longitudinal direction of the vehicle and disposed laterally along a vehicle width direction; The torque box may be attached to a front side seat member formed to extend along the longitudinal direction of the vehicle.

Wherein the front side lower right member is provided with a bent portion bent downward in the height direction of the vehicle; And the torque box may be inserted into the bent portion.

Wherein the front side rear lower member is provided with an opening which is opened inward in the vehicle width direction; The torque box can be inserted through the opening.

The front side rear lower member may have a structure in which a cross section of a "U" shape opening upward in the vehicle height direction is formed so as to extend along the longitudinal direction of the vehicle.

Wherein the torque box includes: a side reinforcement member disposed above the vehicle in a height direction; A rear seal member disposed below the side reinforce member; And a bulkhead attached to the rear seal member.

The side reinforce member has a flat plate shape bent in an " L "shape, and a flange formed by bending along one edge can be attached to the front side rear lower member.

The rear seal member may be formed in a flat plate shape bent in a multistage fashion, and a flange formed by bending at one edge may be attached to the front side rear lower member.

The bulkhead is formed to extend back and forth along the longitudinal direction of the vehicle, and can have a cross section of a " C "shape.

And the other side opposite to the flange of the side reinforcement member can overlap and be attached to the front side seal member.

And the other side opposite to the flange of the rear seal member may overlap and be attached to the front side seal member.

A flange is provided around the opening of the front side rear lower member so that the rear seal member and the side rain force member inserted into the opening can be welded to the flange.

A front filler member may be disposed outside the front side seat member in the width direction of the vehicle and welded to the front side seat member.

A side outer rain force member may be disposed outside the vehicle width direction with respect to the front filler member and welded to the front filler member.

According to another aspect of the present invention, there is provided a method of assembling a vehicle body reinforcing structure, the method comprising: attaching a bulkhead to a rear seal member by welding; Inserting a side reinforcement member into the front side lower member and attaching the side reinforcement member by welding; Welding the front side lower lower member to the front side member inner assembly and then welding the rear side member to fabricate the front side member compliance; Assembling the frontside member compliance with Fender Apron compliance, and assembling dash compliance with the Fender Apron compliance.

The bulkhead may be bolted to the dash compliance.

The bulkhead may be welded to the rear seal member along the longitudinal direction of the vehicle.

The side reinforce member may be welded to the front side rear lower member along the width direction of the vehicle.

The rear seal member may be welded to the front side rear lower member in the height direction of the vehicle.

According to the vehicle body reinforcing structure and the assembling method thereof according to the embodiment of the present invention, the one side portion of the torque box constituted by the front side rear seat member, the side reinforce member and the bulkhead is inserted into the front side rear lower member and integrally joined A front side rear lower member and a front side member, which are two longitudinal rigid members formed to extend along the longitudinal direction of the vehicle, are integrally connected through the torque box by connecting the other side portion of the torque box with the front side seat member Thus, the longitudinal stiffness of the vehicle body is effectively increased, and the passenger can be more safely protected by increasing the collision-resistant rigidity against the frontal and offset collision of the vehicle.

In addition, the number of parts is smaller than that of a reinforcing structure for reinforcing the front side rear lower member in the past, so that the weight and cost of the vehicle can be reduced.

In addition, the assembly efficiency of the vehicle can be improved by simplifying the assembling method.

1 is a plan view of a vehicle body reinforcing structure according to an embodiment of the present invention.
2 is a side view of a vehicle body reinforcing structure according to an embodiment of the present invention.
3 is an exploded perspective view of a vehicle body reinforcing structure according to an embodiment of the present invention.
Fig. 4 is a sectional view. Fig.
5 is an explanatory view of a method of assembling a vehicle body reinforcing structure according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 and 2, a vehicle body reinforcing structure according to an embodiment of the present invention includes a front side member 10 formed to extend along the longitudinal direction of the vehicle and disposed on left and right sides along a width direction of the vehicle Can be applied.

The fender apron member 20 may be disposed outside the front side member 10 in the width direction of the vehicle and above the vehicle height direction.

Front ends along the longitudinal direction of the vehicle of the front side member 10 and the fender apron member 20 can be connected to each other to widen the impact area.

Thus, when the vehicle is subjected to a frontal collision or an offset collision, the impact load is transmitted to the front side member 10 and the fender apron member 20, as shown by the arrows, so that the front side member 10 and the fender apron member 20) is appropriately deformed, the impact energy can be absorbed and reduced.

The front side member 10 may be formed so as to extend in a longitudinal direction of the vehicle after a predetermined portion along the longitudinal direction thereof, a portion where the dash panel and the front filler are located are bent downward in the vehicle height direction.

That is, the front side member 10 may include the bent portion 12, and the portion forming the bent portion 12 may be referred to as the front side rear lower member 14.

Since the bent portion 12 weakens the rigidity of the front side member 10, it is necessary to appropriately reinforce the bent portion 12.

Accordingly, in the present invention, the bulkhead 30 is inserted into the bent portion 12, thereby effectively increasing the rigidity, particularly the bending rigidity, of the front side rear lower member 14, effectively coping with frontal and offset collisions, It is possible to prevent the chassis component from being pushed rearward in the longitudinal direction of the vehicle when a collision occurs, thereby preventing excessive deformation of the lower portion of the dash panel due to the impact of the chassis components.

Referring to Fig. 3, the front side rear lower member 14 may have a structure in which a substantially "U" -shaped section opened upward in the vehicle height direction is formed to extend along the longitudinal direction of the vehicle.

The front side lower lower member 14 may be provided with an opening 140 which is opened to the inside in the vehicle width direction.

The side reinforce member 40 can be inserted through the opening 140 to be integrally coupled.

The side reinforce member 40 may have a flat plate shape bent in a substantially L shape and include a flange 42 bent along one edge.

The rear seal member 50 is formed in a flat plate shape bent in a multistage fashion, and a flange 52 may be bent at one edge.

The bulkhead 30 may be attached to the rear seal member 50 by welding.

The bulkhead 30 is formed so as to extend longitudinally along the longitudinal direction of the vehicle, and can be formed to have a cross-sectional shape as shown in Fig.

4, the side reinforce member 40 is inserted through the opening 140 of the front side lower lower member 14 such that the flange 42 is attached to one side of the front side lower lower member 14 .

The other side opposite to the welding flange 42 of the side reinforcement member 40 can be overlapped with the front side seal member 60 and welded thereto.

The rear seal member 50 may be inserted through the opening 140 and attached to the front side rear lower member 14 via the flange 52. [

The rear seal member 50 may be disposed below the side reinforce member 40 in the height direction of the vehicle.

The other side opposite to the welding flange 52 of the rear seal member 50 can be overlapped with the front side seal member 60 and welded thereto. At this time, the side reinforcement member 40, the rear seal member 50, and the front side seal member 60 are stacked in this order and welded together.

A flange 142 may be provided around the opening 140 of the front side lower lower member 14 so as to be welded to the rear side member 40 and the side side reinforce member 40 inserted into the opening 140 .

The front filler member 70 can be disposed outside the width direction of the vehicle with respect to the front side seal member 60 and welded to the front side seal member 60. [

Side outer rain force members 80 may be disposed outside the vehicle width direction with respect to the front filler member 70 and welded to the front filler member 70. [

As described above, the bulkhead 30, the side rain force member 40, and the rear seal member 50 constitute a torque box, so that the front side lower member 14 is connected to the front side seal member 60 and the front filler member 70 and the side outer reinforce member 80 are connected to each other, the longitudinal stiffness members formed to extend along the longitudinal direction of the vehicle are connected to each other to effectively increase the longitudinal stiffness of the vehicle to effectively cope with the frontal and small overlap collisions of the vehicle have.

5, a method of assembling a vehicle body reinforcing structure according to another embodiment of the present invention includes the steps of (A) attaching the bulkhead 30 to the rear seal member 50 by, for example, spot welding, The rear side member 14 is attached to the front side member inner assembly 16 by inserting the side reinforcement member 40 into the lower member 14 by, for example, spot welding (B) The front side member compliance 18 is completed by welding the rear side seal member 50 after welding by spot welding (C).

Subsequently, the frontside member compliance 18 is assembled with the fender apron compliance 90 and finally the dash compliance 100 is assembled with the fender apron compliance 90 (E).

At this time, the bulkhead 30 can be fastened with the dash compliance 100 and the bolt 110, and the bulkhead 30 can be welded to the rear seal member 50 in the longitudinal direction of the vehicle, The force member 40 can be welded to the front side rear lower member 14 in the width direction of the vehicle and the rear seat member 50 can be welded to the front side rear lower member 14 in the height direction of the vehicle .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Various modifications and variations are possible within the scope of the appended claims.

10: Front Side Members
12:
14: Front side rear lower member,
20: Fender Apron member
30: Bulkhead
40: Side Rain Force member
50: rear seat member
60: Front Side Room Member
70: Front filler member
80: Side room member
90: Fender Apron Compliance
100: Dash Compliance
110: Bolting

Claims (18)

The front side rear lower member formed to extend along the longitudinal direction of the vehicle and disposed laterally along the width direction of the vehicle is provided with an opening which is opened inward in the vehicle width direction
A torque box is inserted and attached through the opening;
Wherein the torque box is attached to a front side seat member formed to extend along the longitudinal direction of the vehicle;
The torque box
A side reed force member disposed above the vehicle in the height direction;
A rear seal member disposed below the side reinforce member; And
A bulkhead attached to said rear seal member;
Wherein the body reinforcement structure comprises: The method according to claim 1,
Wherein the front side lower right member is provided with a bent portion bent downward in the height direction of the vehicle;
And the torque box is inserted into the bent portion. delete The method according to claim 1,
Wherein the front side rear lower member has a structure in which a cross section of a "U " -shaped shape opened upward in a height direction of the vehicle is formed so as to extend along the longitudinal direction of the vehicle. delete The method according to claim 1,
Wherein the side reinforce member has a flat plate shape bent in an " L "shape, and a flange formed by bending along one edge is attached to the front side rear lower member. The method according to claim 1,
Wherein the rear seal member is formed in a flat plate shape bent in a multistage fashion and a flange formed by bending at one edge is attached to the front side rear lower member. The method according to claim 1,
Wherein the bulkhead is formed to extend longitudinally along the longitudinal direction of the vehicle and has a cross section of a " C "shape. The method according to claim 6,
And the other side opposite to the flange of the side reinforcement member is overlapped and attached to the front side seat member. 8. The method of claim 7,
And the other side opposite to the flange of the rear seal member is overlapped and attached to the front side seal member. The method according to claim 1,
Wherein a flange is provided around the opening of the front side rear lower member and the rear side member and the side side reinforcement member inserted into the opening are welded to the flange. The method according to claim 1,
Wherein a front filler member is disposed outside the front side seat member in a width direction of the vehicle and is welded to the front side seat member. 13. The method of claim 12,
And a side outer reinforcement member is disposed on the outside of the vehicle in the width direction with respect to the front filler member, and is welded to the front filler member. Attaching the bulkhead to the rear seal member by welding;
Inserting a side reinforcement member into the front side lower member and attaching the side reinforcement member by welding;
Welding the front side lower lower member to the front side member inner assembly and then welding the rear side member to fabricate the front side member compliance;
Assembling the frontside member compliance with Fender Apron compliance; and
Assembling dash compliance with the Fender Apron Compliance;
Wherein the body reinforcing structure is formed of a resin material. 15. The method of claim 14,
Wherein the bulkhead is fastened to the dash compliance with bolting. 15. The method of claim 14,
Wherein the bulkhead is welded to the rear seal member along the longitudinal direction of the vehicle. 15. The method of claim 14,
And the side reinforce member is welded to the front side rear lower member along a width direction of the vehicle. 15. The method of claim 14,
And the rear seal member is welded to the front side rear lower member in the height direction of the vehicle.
KR1020150174184A 2015-12-08 2015-12-08 Vehicle body reinforcing structure and assembling method thereof KR101765607B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150174184A KR101765607B1 (en) 2015-12-08 2015-12-08 Vehicle body reinforcing structure and assembling method thereof

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Application Number Priority Date Filing Date Title
KR1020150174184A KR101765607B1 (en) 2015-12-08 2015-12-08 Vehicle body reinforcing structure and assembling method thereof

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KR20170067476A KR20170067476A (en) 2017-06-16
KR101765607B1 true KR101765607B1 (en) 2017-08-23

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002154458A (en) * 2000-11-24 2002-05-28 Fuji Heavy Ind Ltd Car body front structure

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002154458A (en) * 2000-11-24 2002-05-28 Fuji Heavy Ind Ltd Car body front structure

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