KR100942082B1 - Reinforcing structure of hybrid plastic product - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing structure of a hybrid resin molded article, wherein the reinforcing resin material is formed by insert molding a steel panel. The purpose is to increase the bonding force.

The present invention provides a reinforcement structure of a hybrid resin molded product configured to reinforce the steel panel by allowing the steel panel 110 to insert-bond the reinforcement resin material 160 to one side of the steel panel. In the: between the steel panel and the reinforcing resin, it is characterized in that the anchor means 200 is embedded in the reinforcing resin while being integrally connected to the steel panel.

Hybrid, resin molding, insert molding, front end module, front end carrier

Description

Reinforcement structure of hybrid resin molded article {REINFORCING STRUCTURE OF HYBRID PLASTIC PRODUCT}             

1 is a partial cross-sectional view showing a reinforcing structure of a hybrid resin molded article according to Example 1 of the present invention.

Figure 2 is a perspective view of the bracket which is the anchor means applied to the first embodiment.

3 is a plan view showing another example of the bracket which is the anchor means applied to the first embodiment.

4 is a partial cross-sectional view showing the reinforcing structure of the hybrid resin molded article according to Example 2 of the present invention.

Figure 5 is a perspective view showing another example of the bracket which is the anchor means applied to the second embodiment.

6 is a partial cross-sectional view showing a reinforcing structure of a hybrid resin molded article according to Example 3 of the present invention.

7 is a partial cross-sectional view showing a reinforcing structure of the hybrid resin molded article according to Example 3, which is a cross-sectional view showing an example in which a hollow pipe having a structure different from that of the hollow pipe applied to FIG. 8 is used as an anchor means.                 

8 is a partial cross-sectional view showing a reinforcing structure of a hybrid resin molded article according to Example 4 of the present invention.

9 is a partial cross-sectional view showing a reinforcing structure of a hybrid resin molded article according to Example 5 of the present invention.

10 is a perspective view showing a general automotive front end module.

11 is an exploded perspective view of a general front end module.

12 is a partial cross-sectional view showing an example of a reinforcing structure of a conventional hybrid resin molded article.

<Description of Symbols for Main Parts of Drawings>

100: hybrid resin molded product, 110: metal panel,

120: horizontal portion, 130: vertical portion,

160: reinforcing resin material, 200: anchor means,

210, 220: bracket, 212.222: junction,

214, 224, 252, 264: through hole, 250, 260: hollow pipe,

262: support flange, 270: metal mesh

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing structure of a hybrid resin molded article, and more particularly to insert-molded a metal panel, in order to reinforce a metal panel in a hybrid resin molded article such as a front end carrier for automobiles. The present invention relates to a reinforcing structure of a hybrid resin molded article capable of increasing the bonding force of the reinforcing resin material joined to the side.

For example, hybrid resin molded articles such as automobile front end carriers are formed by insert molding a metal material into a mold. 11 and 12, the front end carrier constitutes a front end module constituting the front end of the vehicle body. Looking at the structure, the front end carrier 12, which is formed side by side with a predetermined interval, 14 and a pair of vertical members 16 and 16 connecting the upper panel 12 and the lower panel 14 to form a vent hole 18 therewith, and each of the vertical members 16 The head lamp mounting frame 20 for connecting the outer end and each end of the upper panel 12, and the bumper mounting portion 22 for connecting the outside of the vertical member 16 and the head lamp mounting frame 20 Equipped.

In the front end carrier 10, a radiator 30 is disposed at the rear side of the vent hole 18 to be supported by the front end carrier 10, and a condenser 40 is supported at the front of the radiator 30. A radiator grill (not shown) is installed at the front of the vent hole 18, and a fan shroud assembly 50 for radiating the coolant of the radiator 30 and the refrigerant of the condenser 40 at the rear of the radiator 30. Is installed. In addition, the headlamp mounting frame 20 is provided with a headlamp 70, the bumper 80 is fastened to the side member 60 of the vehicle body together with the bumper mounting portion 22 and supported, for example, the upper panel 12 Both ends of the vehicle are supported by the vehicle body. That is, the front end carrier 10 is mounted to the vehicle body by fixing both the bumper mounting portions 22 and the upper panel 12 to the vehicle body.

In the front end carrier 10 as described above, the remaining portions except the upper panel 12 are all made of a resin material, and only the upper panel 12 is formed of a metal panel. The upper panel 12 usually has a horizontal portion and a vertical portion extending downward from the tip of the horizontal portion. That is, the top panel 12 has an angled cross section.

However, even if the upper panel 12 has an angular cross-sectional structure, since the upper panel 12 is made of a relatively thin metal panel, strength such as bending strength and torsional strength is low. In order to solve this, the reinforcement resin material 90 (see FIG. 12) is bonded to the inner surface side of the upper panel 12 during insert molding, and the reinforcement resin material 90 is usually formed by a plurality of reinforcement ribs. It has a structure for improving the rigidity of the panel 12. 12, the burring portion 12a is formed such that the hole edge portion formed in the metal panel 12 protrudes inwardly of the metal panel 12 so that the burring portion 12a is a reinforcing resin material. By embedding in the 90, the bonding force to the metal panel 12 is increased.

However, in this front end carrier 10, the metal panel 12 and the reinforcement resin material 90 are joined together as a whole, although the reinforcement resin material 90 with respect to the metal panel 12 by the burring portion 12a. Even if the bonding force is improved, the holding force is not effective due to the structure of the burring portion 12a, and the area thereof is extremely small compared to the total bonding area.

In order to solve the above problems, other techniques capable of reinforcing the upper panel have been proposed, and representative examples thereof include a resin molded article disclosed in Japanese Patent Laid-Open No. 13-293746. Here, a resin molded article in the form of insert-molding a mat-like reinforcement formed by embedding a material having a higher strength than the base material, for example, on at least one surface of the upper panel of the front end carrier is proposed. However, in this resin molded article, there is an advantage in application when the upper panel is a resin material, but it is difficult to apply when the upper panel is formed of a metal panel. That is, the mat-like reinforcement itself is reinforced by the embedding of a material having a higher strength than the base material, and the bonding strength between the high-strength material and the base material is good, but the mat-like reinforcement and the upper panel are still bonded to each other because the above-described structure is applied. The same problem is inevitable.

On the other hand, Japanese Patent Laid-Open No. 14-37130 proposes an automobile front end panel (i.e., front end carrier) in which an upper rail portion (i.e., an upper panel) is formed by insert molding a metal pipe into a resin portion. There is also proposed a front end panel in which an upper rail portion is formed with an exposed portion not covered with a resin material, and the insert portion has a locating hole for insert molding, a hole for fastening with a vehicle body, and the like.

By the way, in the front end panel as described above, the metal pipe is embedded there is a great advantage in the reinforcing structure of the upper rail portion, but the cross-sectional area of the metal pipe compared to the cross-sectional area of the upper rail portion of the metal pipe is inevitably small. For this reason, it is difficult to flexibly apply many structures such as a component assembly structure such as a radiator on the air vent side, a projecting structure of the radiator pillar neck, a component installation structure such as a hood latch, a hood stay, and the like to the upper rail part flexibly. Many parts are often mounted through various holes formed in the resin material portion, not the metal pipe portion of the upper rail portion. When the components are mounted on the resin material as described above, the original purpose of reinforcing the upper rail portion with the metal pipe cannot be achieved because the strength of the resin material portion is weak.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described conventional problems, and is made of insert-molded metal panels, for example, in a hybrid resin molded article such as a front end carrier for automobiles. An object of the present invention is to provide a reinforcing structure of a hybrid resin molded article capable of increasing bonding strength.

In order to achieve the above object, the present invention, in the hybrid resin molded product formed by inserting the metal panel in the reinforcing structure of the hybrid resin molded article made to reinforce the metal panel by the reinforcing resin material is bonded to one side of the metal panel: Between the metal panel and the reinforcing resin material, it is characterized in that the anchor means is embedded in the reinforcing resin material is integrally connected to the metal panel.

According to the present invention, as an example of the anchor means, a pair of joints are formed at both ends to be joined to the inner surface of the metal panel, and a bracket having a channel-shaped cross-sectional structure embedded in the reinforcing resin material through both openings may be employed.

In addition, the metal panel has a horizontal portion and a vertical portion extending downwards from the front end of the horizontal portion, and as the anchor means, a pair of joining portions, which are joined to the inner surface of the horizontal portion and the inner surface of the vertical portion, are formed at both ends and open at both ends. An angle-shaped cross-section bracket embedded in the reinforcement resin material may be employed.

The bracket of the channel-shaped cross-section structure or the bracket of the angle-shaped cross-section is extended in length, a plurality of through-holes along the longitudinal direction may be formed. Therefore, the holding force of the reinforcing resin material by the bracket can be further improved because the reinforcing resin material inside the bracket and the reinforcing resin material outside the bracket are integrally connected not only through the openings on both sides of the bracket but also through the holes.

As another example of the anchor means, a hollow pipe joined to an inner surface of the metal panel and embedded in the reinforcement resin material and filled with the reinforcement resin material in a hollow opened to both sides may be employed.

In addition, the metal panel has a horizontal portion and a vertical portion extending downward from the front end of the horizontal portion, one end portion is inserted into a hole formed in the vertical portion to have a predetermined distance with the inner surface of the horizontal portion as the anchor means is reinforced resin Filled with ash and filled with reinforcement resin in the hollow, the other end may be a hollow pipe formed with a support flange is supported on the outer surface of the vertical portion.

In addition, another example of the anchor means may be a metal mesh bonded to the inner surface of the metal panel embedded in the reinforcement resin material.

The features and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It must be interpreted to mean meanings and concepts.

<Example 1>

1 shows a reinforcing structure of the hybrid resin molded article 100 according to the present embodiment, and FIG. 2 shows an example of the anchor means 200 employed in the present embodiment.

The hybrid resin molded article 100 is formed by inserting the metal panel 110 into the resin material 150. Here, as an example of the metal panel 110 constituting the hybrid resin molded article 100, the horizontal portion 120 and the The vertical portion 130 integrally extending downward from the tip of the horizontal portion 120 is shown.

Since the metal panel 110 is formed to have a relatively thin thickness, the metal panel 110 is reinforced with a reinforcing resin material 160 that is bonded to the inner surface of the lower rigidity such as bending strength or torsional strength. Of course, this reinforcement resin 160 is also formed at the time of insert molding.

Since the metal panel 110 and the reinforcement resin 160 are in surface contact, the bonding force of the reinforcement resin 160 to the metal panel 110 is weak, so that the reinforcement resin 160 may be separated from the metal panel 110. There is concern. In this embodiment, in order to prevent this, between the metal panel 110 and the reinforcing resin material 160, while being integrally connected to the metal panel 110, the anchor means 200 is embedded in the reinforcing resin material 160 ) Is installed.

In the present embodiment, a pair of joining portions 212 and 212 are formed at both ends of the anchor means 200 and joined to the inner surface of the metal panel 110, and the channel type is embedded in the reinforcement resin 160 through both openings. A bracket 210 having a cross-sectional structure is employed. In other words, by welding the both joints 212 and 212 to the inner surface side of the horizontal portion 120 of the metal panel 110, the bracket 210 is integrally bonded to the metal panel 110, and then insert molding the bracket ( 210 may be embedded in the reinforcement resin 160.

Therefore, the reinforcement resin 160 which is filled in the inside of the bracket 210 of the channel-shaped cross-sectional structure (ie, the space between the bracket 210 and the metal panel 110) through both openings is gripped by the bracket 210. Therefore, the reinforcement resin 160 may be prevented from being separated from the metal panel 110, and the rigidity of the metal panel 110 may be increased by the bracket 210.

In addition, according to the present embodiment, as shown in FIG. 3, the length of the bracket 210 is further extended, and a plurality of through holes 214 may be formed along the length direction.

When the through holes 214 are formed as described above, since the reinforcement resin 160 inside / outside the bracket 210 is integrally connected not only through the openings on both sides of the bracket 210, but also through the through holes 214, the brackets are integrally connected. The holding force of the reinforcing resin material 160 by 210 is further improved, and as the length of the bracket 210 is extended, the rigidity of the metal panel 110 may be further increased.

<Example 2>

As shown in Fig. 4, the anchor means 200 is different from the first embodiment in this embodiment. That is, in the present embodiment, as the anchor means 200, a pair of joining portions 222, 222 which are sequentially joined to the inner surface of the horizontal portion 120 and the inner surface of the vertical portion 130 are formed at both ends, An angle-shaped cross-section bracket 220 is embedded into the reinforcement resin 160 through both openings. That is, in the present embodiment, the bracket 220 which is the anchor means 200 is installed at the corner of the inner surface of the metal panel 110 and embedded in the reinforcement resin 160 during insert molding.

In addition, in the present embodiment, as shown in FIG. 5, the length of the bracket 220 extends long, and a plurality of through holes 224 may be formed along the length direction.

Therefore, in this embodiment, the bonding force of the reinforcement resin material 160 may be increased by the bracket 220, and the rigidity of the metal panel 110 may be increased.

<Example 3>

In the present embodiment, the anchor means 200 is bonded to the inner surface of the metal panel 110, as shown in Figure 6 embedded in the reinforcement resin 160 and the reinforcement resin material in the hollow open to both sides ( A hollow pipe 250 filled with 160 is employed. The hollow pipe 250 is fixed to the vertical or horizontal portion of the metal panel 110 by welding or other methods in advance, or one part thereof is embedded in the reinforcement resin 160 which is insert-molded later. .

The hollow pipe 250 grips the reinforcement resin material 160 filled between the upper half of the outer circumferential surface and the metal panel 110 and the reinforcement resin material 160 filled in the hollow pipe 250, thereby the metal panel. In addition to improving the bonding force between the 110 and the reinforcement resin 160, the rigidity of the metal panel 110 is also increased.

As shown in FIG. 7, the hollow pipe 250 according to the present exemplary embodiment may extend in the axial direction, and a plurality of the through holes 252 may be formed through the hollow pipe 250 in the longitudinal direction thereof. In this case, the reinforcement resin 160 filled in the hollow of the hollow pipe 250 and the reinforcement resin 160 outside the hollow pipe 250 not only through both openings of the hollow pipe 250 but also through the through holes 252. ) Are connected to each other, the holding force for the reinforcement resin 160 may be further improved.

In addition, although not shown here, when the hollow pipe 250 has an elliptical cross section and irregularities are formed on the outer circumferential surface, the gripping force may be more effectively improved.

<Example 4>

In the present embodiment, as shown in Figure 8, the anchor means 200 in the hole formed in the vertical portion 130 to have a predetermined interval with the inner surface of the horizontal portion 120 of the metal panel 110. One end is inserted into the reinforcement resin 160 and filled with a reinforcement resin 160 in the hollow, the other end of the hollow pipe 260 is formed with a support flange 262 is supported on the outer surface of the vertical portion 130 ) May be employed.

Therefore, since the reinforcement resin 160 existing in the upper portion of the hollow pipe 260 and the reinforcement resin 160 filled in the hollow of the hollow pipe are gripped by the hollow pipe 260, Gripping force can be improved.

In addition, according to the present embodiment, the hollow pipe 260 may be elongated, and a plurality of through-holes 264 passing through the hollow along the longitudinal direction may be formed. In this case, since the reinforcing resin material 160 inside / outside the hollow pipe 260 is connected to each other, the holding force for the reinforcing resin material 160 may be further improved.

<Example 5>

In the present embodiment, as the anchor means 200 is a metal mesh 270 is bonded to the inner surface of the metal panel 110 and embedded in the reinforcement resin 160, as shown in FIG.

Therefore, since the reinforcing resin 160 is filled through the eyes of the metal mesh 270, the rigidity of the metal panel 110 may be increased by the metal mesh 270.

In the reinforcing structure of the hybrid resin molded article according to the present invention configured as described above, the application of various structures, such as a structure for assembling various parts or a structure for mounting on a vehicle body, and the shape and function of the reinforcement resin material The phenomenon in which the reinforcing resin 160 is separated from the metal panel 110 by the anchor means 200 embedded in the 160 may be prevented. In addition, the rigidity of the metal panel 110 can be increased by the anchor means 200.

Claims (6)

In the reinforcing structure of a hybrid resin molded article configured to reinforce the metal panel by joining the reinforcing resin material 160 to one side of the metal panel of the hybrid resin molded article 100 having the metal panel 110 insert-molded: Reinforcing structure of the hybrid resin molded article, characterized in that between the metal panel and the reinforcing resin material, the anchor means 200 is embedded in the reinforcing resin material while being integrally connected to the metal panel. The method of claim 1, The anchor means 200 has a pair of joining portions 212 and 212 formed at both ends thereof to be joined to the inner surface of the metal panel 110 and having a channel-shaped cross-sectional structure embedded in the reinforcement resin 160 through both openings. Reinforcement structure of a hybrid resin molded article, characterized in that the bracket (210). The method of claim 1, The metal panel 110 has a horizontal portion 120 and a vertical portion 130 extending downward from the tip of the horizontal portion, and the anchor means 200 is sequentially joined to the inner surface of the horizontal portion and the inner surface of the vertical portion. Reinforcing structure of a hybrid resin molded article, characterized in that a pair of joints (222, 222) is formed on both ends and the bracket 220 of the angle-shaped cross-section structure is embedded in the reinforcement resin material 160 through both openings. The method of claim 1, The anchor means 200 is a hollow pipe 250 is bonded to the inner surface of the metal panel 110 is filled in the reinforcement resin 160 and filled with the reinforcement resin 160 in the hollow open to both sides. Reinforcement structure of hybrid resin molded product characterized by the above-mentioned. The method of claim 1, The anchor means 200, one end is inserted into the hole formed in the vertical portion 130 to have a predetermined interval with the inner surface of the horizontal portion 120 of the metal panel 110 is embedded in the reinforcing resin material 160 and In addition, the hollow reinforcement resin 160 is filled, and the other end of the reinforced structure of the hybrid resin molded article, characterized in that the hollow pipe 260 is formed with a support flange 262 supported on the outer surface of the vertical portion (130). The method of claim 1, The anchor means 200 is a reinforcing structure of a hybrid resin molded article, characterized in that the metal mesh 270 is bonded to the inner surface of the metal panel 110 and embedded in the reinforcement resin material (160).

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