KR101742007B1

KR101742007B1 - Method for fastening a door impact beam

Info

Publication number: KR101742007B1
Application number: KR1020150175696A
Authority: KR
Inventors: 김장수; 하은민; 이현우
Original assignee: 주식회사 엠에스 오토텍
Priority date: 2015-12-10
Filing date: 2015-12-10
Publication date: 2017-06-01

Abstract

A locking mechanism interposed between the door panel and the impact beam to support the impact beam is introduced. The fixture includes a support having an inner attachment surface in surface contact with the impact beam; And a plurality of ribs extending in the radial direction on the outer surface of the support. The fixing mechanism effectively prevents the Mastic Seal from being detached from the panel or the impact beam.

Description

METHOD FOR FASTENING A DOOR IMPACT BEAM [0002]

The present invention relates to a door impact beam fixing structure for a vehicle and a door impact beam fixing method using the same. The fixing mechanism is interposed between the door panel and the impact beam to support the impact beam.

The impact beam of the vehicle door is mounted on the inner panel to support the lateral impact. And both ends thereof are welded to the inner panel using a bracket.

The interval between the ends of the impact beam is separated from the inner panel, which causes vibration or noise during driving. A mastic sealer is applied between the inner panel and the inner panel in the middle of the longitudinal direction of the impact beam.

Mastic seals are used in filling hoods, trunk lids, doors, loops, and other spaces between the outer and inner plates of the vehicle, and for bonding the members and preventing vibration. Usually, it is cured by application, filling and heating.

During the vehicle manufacturing process, the door is supplied to the assembly plant in the state that the reinforce members such as inner, outer panel, and impact beam are assembled. At this time, a mastic sealer is pre-filled between the impact beam and the door panel, and is hardened at the assembling factory in the course of coating and the like.

Although the mastic sealer has a viscosity as an adhesive, when the door assembly is moved to the assembly plant and the carrier vehicle does not adequately cope with the speed bump or other obstacle, the sealer is detached from the panel or the beam I noticed that there was a problem that Sealer did not play a role.

In recent years, the demand for quietness from vehicle manufacturers and consumers has been increasing. Since the door assembly is pre-filled with a mastic sealer and supplied to a vehicle assembly line, it is necessary to prepare and prevent the door vibration or noise caused by the application of mastic sealer There is a need.

The present invention is based on the recognition of this problem, and it is an object of the present invention to provide a door impact beam fixing mechanism for preventing a mastic sealer from being detached from a panel or an impact beam.

Another object of the present invention is to provide a method of fixing a door impact beam using a door impact beam fixing mechanism capable of minimizing the function of a mastic sealer and preventing consumer complaints due to poor filling of a mastic sealer.

To achieve the above object, a door impact beam fixing mechanism according to the present invention is installed at a position where a mastic sealer is applied between an inner panel and an impact beam.

The door impact beam securing mechanism according to the embodiment includes: a support having an inner attachment surface which is in surface contact with the impact beam; And a plurality of ribs extending in the radial direction on the outer surface of the support.

According to an embodiment, the ribs include a pair of outer ribs spaced apart in the circumferential direction of the impact beam and disposed opposite to each other with the ribs installed in the impact beam; And an inner rib disposed between the outer ribs.
According to the present invention, the fixing mechanism as described above is disposed at a plurality of positions between both ends of the impact beam so as to face the door panel so that the impact beam fixed at both ends of the door panel can stably come into close contact with the door panel, The adhesive is filled between the appliance and the door panel.

The door impact beam fixing mechanism according to the present invention as described above can reliably prevent the mastic seal from being detached from the panel or the impact beam due to its structural features.

Further, the fixing mechanism of the present invention does not need to be installed at all the mastic sealer application positions. Since it is necessary to install it in the minimum position where installation is necessary for quality assurance, it does not cause a problem of cost increase.

Further, the fixing mechanism of the present invention is simple in structure and easy to attach.

Further, the fixing mechanism according to the present invention can prevent the mastic sealer from completely losing its function, perform the minimum functions, and prevent the customer complaints due to the poor filling of the mastic sealer.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a door panel with a fixing mechanism according to an embodiment of the present invention, Fig.
Fig. 2 is a schematic cross-sectional view along line AA of Fig. 1,
3 is a view showing a fixing mechanism according to an embodiment of the present invention,
4 is a view showing an impact beam to which a fixing mechanism according to an embodiment of the present invention is applied.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same components or parts are denoted by the same reference numerals as much as possible for convenience of description.

Referring to FIG. 1, a door impact beam securing mechanism according to an embodiment is installed at a middle position 2 ~ 3 of the impact beam 20. Since both ends of the door panel 10 are fixed by the bracket 21, the middle portion is vulnerable to vibration and the separation of the mastic sealer becomes a problem.

2, the fixing mechanism 30 is disposed between the impact beam 20 and the door panel 10 so that the impact beam 20 and the door panel 10 can be detached without leaving the Mastic Seal S in place, So that it can be stably contacted.

2 and 3, the fixing mechanism 30 includes a support 31 attached to the impact beam 20 and ribs 33 and 35 extending in the panel direction.

The support 31 has an inner mounting surface 32 which is in surface contact with the impact beam 20. [ 2, the support 31 attached to a bar-shaped impact beam 20 has a curved shape and is formed to a size large enough to cover 1/2 or less of the circumference of the beam 20

The ribs 33 and 35 extend in the radial direction on the outer surface of the support 31 and are composed of a pair of outer ribs 33 and inner ribs 35.

The pair of outer ribs 33 are spaced apart from each other in the circumferential direction of the support 31 and disposed opposite to each other. The outer ribs 33 are disposed opposite to each other in the circumferential direction of the impact beam 20, that is, in the up-and-down direction when viewed from the state of being mounted on the impact beam 20.

The sealer S is viscous and does not cause a problem of deviation from the impact beam 20 or the door panel 10 due to its own weight. However, since defective filling of the Mastic Seal S occurs due to vibration during the transportation process, the outer ribs 33 can be effectively prevented by disposing them in the vertical direction.

The inner ribs (35) are disposed between the outer ribs (33). With this arrangement, a space is provided between each of the outer ribs 33 and the inner ribs 35 so that the sealer S can stably stay therein, and thus the release of the sealer S is prevented.

Further, according to the embodiment, when the conventional sealer S makes point contact with the impact beam 20 or the door panel 10, since the contact is made wider by the fixing mechanism 30, The sealer S is not easily released from the position.

2 and 3, each of the outer ribs 33 may have a bending piece 34 bent inwardly at the tip thereof and extending therefrom. This bending piece 34 changes the contact angle between the sealer S and the outer rib 33 and forms a more stable space between the seal ring S and the inner rib 35, can do.

On the other hand, the inner rib 35 may have, at its tip, an auxiliary piece 36 extending in the direction of each of the outer ribs 33, corresponding to the bending piece 34 of the outer ribs 33. The auxiliary piece 36 also effectively prevents sealer S deviation.

Referring to Fig. 3, an adhesive may be applied to the support attachment surface 32 of the fixing mechanism 30. Fig. An adhesive is applied to the fixing mechanism 30 in advance and the fixing mechanism 30 is attached to the position of the required impact beam 20.

Referring to FIG. 4, the adhesive may be applied to the impact beam 20 instead of the fixture 30. An adhesive is applied to the impact beam 20 in advance at the positions 23a, 23b and 23c where the fixing mechanism 30 is to be installed, and then the fixing mechanism 30 is attached thereto.

As the adhesive, it is preferable to use a structural sealer corresponding to a high-performance adhesive in order to improve the fixing force of the impact beam 20. [

While the invention has been shown and described with respect to the specific embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit of the invention as set forth in the following claims.

10: Door 20: Impact beam
30: Fixture 31: Support
32: attachment surface 33: outer rib
34: Bending piece 35: Inner rib
36: Auxiliary piece

Claims

A door impact beam fixing method for stably attaching an impact beam having its both ends fixed to a door panel to a door panel,
A fixing mechanism is disposed at a plurality of positions between both ends of the impact beam so as to face the door panel, an adhesive is filled between the fixing mechanism and the door panel,
The fixing mechanism includes:
A support having an inner attachment surface in surface contact with the impact beam; And
And a plurality of ribs extending in the radial direction on the support outer surface,
The ribs
A pair of outer ribs disposed toward the door panel in a state where the impact ribs are installed on the impact beams, the ribs being spaced apart from each other in the circumferential direction of the impact beam and facing each other; And
And an inner rib disposed between the outer ribs,
Each of said outer ribs having a bend extending inwardly at its tip,
Said inner rib having an auxiliary piece at its tip extending in the direction of each of the outer ribs,
Wherein the adhesive that is not hardened by the plurality of ribs is not separated between the fixing mechanism and the door panel so that the adhesive can be in surface contact with the door panel.

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