KR101198601B1

KR101198601B1 - Door impact beam unit

Info

Publication number: KR101198601B1
Application number: KR20100049765A
Authority: KR
Inventors: 이문용; 정명섭
Original assignee: 주식회사 성우하이텍
Priority date: 2010-05-27
Filing date: 2010-05-27
Publication date: 2012-11-07
Also published as: KR20110130224A

Abstract

The present invention configures the impact support means using aluminum foam between the impact beam and the inner surface of the central portion of the door outer panel to assist the central rigidity of the outer panel to prevent deformation by light external force, and improve the shock absorbency during side door collision. It provides a door impact beam unit to make.

Description

Beam unit for door impact beams {DOOR IMPACT BEAM UNIT}

The present invention relates to a door impact beam unit, and more particularly, to a door impact beam unit that minimizes the intrusion amount of the door outer panel during the side impact of the vehicle.

In general, the door impact beam unit 101 for a vehicle, as shown in FIG. 1, fixes the impact pipe 105 having a normal pipe shape and both ends of the impact beam 105 to both sides of the door inner panel 109. It consists of a beam bracket 107 for installation.

That is, the door impact beam unit 101 has both ends of the impact beam 105 are installed in the inner panel 109 of the door 103 in the transverse direction through the beam bracket 107, respectively, when the side impact of the vehicle, It protects the occupants by suppressing the intrusion of opponent vehicles or collision objects as much as possible.

However, the above-described conventional door impact beam unit 101, as shown in Figure 2, the gap (G) without a support structure between the center portion of the outer panel 111 of the door 103 and the impact beam 105 When the side impact of the vehicle is spaced apart by a predetermined distance, primarily the impact force (F) is absorbed only by the rigidity of the outer panel 111 itself, after the outer panel 111 is somewhat deformed to the impact beam 105 By absorbing the impact force (F), there is a disadvantage that the collision deformation of the door 103 easily occurs even by a light impact force (F).

In addition, the outer panel 111 has a disadvantage in that the rigidity of the central portion is weak, so that when a light external force acts on the outer surface of the central portion of the outer panel 111 even in normal times, it is easily bent.

Therefore, the present invention has been invented to solve the disadvantages of the prior art as described above, the problem to be solved by the present invention is to configure the impact support means using an aluminum foam between the impact beam and the inner surface of the central portion of the door outer panel of the outer panel It is to provide a door impact beam unit that assists the central rigidity to prevent deformation due to light external force, and to improve the shock absorption in the event of a side door collision.

In the door impact beam unit of the present invention for realizing the technical problem as described above in the door impact beam unit in which both ends of the impact beam in the transverse direction is installed inside the inner panel of the door through the beam bracket,

And an impact supporting means configured to absorb and support the external impact force transmitted from the outer panel through deformation of the shock absorber, which is configured between the impact beam and the inner surface of the center portion of the outer panel of the door.

The impact support means includes a support plate bonded to the center portion of the impact beam through an adhesive sheet to face the inner surface of the outer panel; The support plate and the inner surface of the outer panel may be composed of an impact absorbing material that is adhered to both sides through an adhesive sheet.

The support plate may include a central adhesive part forming a semicircular adhesive surface at the center to be adhered to the central part of the impact beam; It may be composed of an upper and lower adhesive portion extending to the upper side and the lower side of the central adhesive portion to form a flat adhesive surface so that one surface of the shock absorber is bonded.

The adhesive sheet may be formed by applying a thermosetting adhesive on both sides of the sheet paper.

The shock absorber may be made of foamed aluminum foam cut to a certain standard.

As described above, according to the door impact beam unit of the present embodiment, an impact supporting means using aluminum foam is formed between the impact beam and the inner surface of the central portion of the door outer panel to assist the central rigidity of the outer panel to bend due to light external force. There is an effect of preventing deformation.

Further, according to the door impact beam unit of the present embodiment, there is an effect of improving the shock absorbency at the time of side door collision through the secondary collision absorption pattern by the impact support means.

1 is a rear view of a door to which a door impact beam unit according to the prior art is applied.
Figure 2 is a partial side cross-sectional view of the door outer panel and the impact beam for explaining the problems of the prior art.
3 is an exploded perspective view of the door impact beam unit according to the embodiment of the present invention.
4 is an assembled perspective view of the door impact beam unit according to the embodiment of the present invention.
5 is a partial assembly cross-sectional view of the door impact beam unit according to an embodiment of the present invention.
6 is an operational state diagram of the impact support means applied to the door impact beam unit according to an embodiment of the present invention.

Hereinafter, the preferred configuration and operation of the present invention will be described in detail with reference to the accompanying drawings.

3 is an exploded perspective view of a door impact beam unit according to an embodiment of the present invention, Figure 4 is an assembled perspective view of a door impact beam unit according to an embodiment of the present invention, Figure 5 is a door impact according to an embodiment of the present invention Partial assembly cross section of the beam unit.

As shown in FIGS. 3 and 4, the door impact beam unit 1 according to the present embodiment has an impact beam 3 having a circular pipe shape, and both ends of the impact beam 3 with an inner panel of the door (not shown). At the same time, the beam bracket 5 is fixed to both sides.

In addition, as shown in FIG. 5, the external impact force transmitted from the outer panel 7 is transmitted between the impact beam 3 and the inner surface of the center portion of the outer panel 7 of the door through deformation of the shock absorber 11. Shock absorbing means for absorbing and supporting 10 is further configured to function to protect the occupant by suppressing the intrusion of the opponent vehicle or the collision as much as possible in the event of a side collision of the vehicle.

As shown in FIG. 3, the impact support means 10 is composed of a support plate 13 and the shock absorber 11.

As shown in FIG. 5, the support plate 13 is bonded to the central portion of the impact beam 3 through the adhesive sheet S so as to face the inner surface of the outer panel 7.

The support plate 13 forms a central adhesive portion 21 that forms a semicircular adhesive surface F1 at the center to be adhered to the central portion of the impact beam 3, and extends above and below the central adhesive portion 21. It is formed of an upper adhesive portion 23 and a lower adhesive portion 25 formed to form a flat adhesive surface (F2) so that one surface of the shock absorber 11 is bonded.

And the shock absorbing material 11, as shown in Figure 5, through the adhesive sheet (S) on the upper and lower adhesive parts 23 and 25 of the support plate 13 and the inner surface of the outer panel (7). Both sides are glued respectively.

The shock absorbing material 11 is formed by cutting a foamed aluminum foam to a certain standard, and is formed by cutting in the shape of a rectangular parallelepiped in this embodiment.

On the other hand, the adhesive sheet (S) may be applied to the thermosetting adhesive is formed on both sides of the sheet paper is applied, but is not limited to this embodiment, it may be applied by applying a thermosetting adhesive immediately.

Therefore, the door impact beam unit 1 having the configuration as described above is a state in which the impact beam 3 is disposed in the transverse direction inside each inner panel (not shown) of the front and rear doors. Both ends are installed at both inner sides of the inner panel (not shown) through the respective beam brackets 5.

In this state, the impact supporting means 10 is installed between the central portion of the impact beam 3 and the inner surface of the central portion of the outer panel 7 of the door.

That is, the support plate 13 is attached to the central adhesive portion 21 through the adhesive sheet 3 to the central portion of the impact beam 3, and adhered to the upper and lower adhesive portions 23 and 25 of the support plate 13. The shock absorbing material 11 having one surface bonded to each other via the sheet S has its other surface bonded to the inner surface of the central portion of the outer panel 7 through the adhesive sheet S.

In this state, when the impact force F is transmitted to the outer panel 7 of the door by the vehicle body side collision, the outer panel 7 and the support plate 13 formed between the impact beam 3 and The impact force is evenly transmitted to the center of the impact beam 3 through the shock absorber 13.

That is, when the impact force 7 acts on the outer panel 7, as illustrated in FIG. 6, the shock absorber 11 installed on the impact beam 3 through the support plate 13 is an outer panel ( It deforms in the compression direction together with the deformation of 7) and primarily absorbs the impact force (F).

Subsequently, after the impact absorbing material 11 is completely compressed and deformed, the impact beam 3 is bent to improve impact absorption at the time of side door collision through a collision absorption pattern that absorbs impact force over a second time.

In addition, the outer panel 7 is directly supported by the impact beam 3 by the shock absorbing material 11 and the support plate 13 of which the center part is aluminum foam, thereby reinforcing the center part rigidity of the outer panel 7, thereby At the time, the deformation of the central portion of the outer panel 7 due to light external force is minimized.

Although the present invention has been described above with reference to the presently considered embodiments, the present invention should not be construed as being limited to the above embodiments. Rather, the present invention belongs to the above-mentioned embodiments of the present invention. It is to be construed as including all changes in the range that are considered to be equivalent and easily changed by those skilled in the art.

1: impact beam unit 3: impact beam
5: beam bracket 7: outer panel
11: shock absorber 13; Support plate
21: center adhesive part 23: upper adhesive part
25: lower adhesive part S: adhesive sheet

Claims

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Both ends of the impact beam in the transverse direction inside the inner panel of the door are installed through the beam bracket, and is configured between the impact beam and the inner surface of the center portion of the outer panel of the door, and external impact force transmitted from the outer panel through deformation of the shock absorber. In the door impact beam unit comprising an impact support means for absorbing and supporting the;
The impact support means
A support plate bonded to the central portion of the impact beam through an adhesive sheet to face the inner surface of the outer panel;
Door impact beam unit consisting of a shock absorbing material to which both sides are bonded to each other through an adhesive sheet on the inner surface of the support plate and the outer panel.

The method of claim 2,
The support plate
A center adhesive part for forming a semicircular adhesive surface in the center to be attached to the center part of the impact beam;
And an upper and lower adhesive part extending upward and downward from the central adhesive part to form a flat adhesive surface to bond one surface of the shock absorber.

The method according to claim 2 or 3,
The adhesive sheet is
Door impact beam unit is formed by applying a thermosetting adhesive on both sides of the sheet paper.

The method according to claim 2 or 3,
The shock absorber is
Door impact beam unit, characterized in that made of foamed aluminum foam cut to a certain standard.

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