KR100346281B1 - Method for preparing bumper guard of vehicle - Google Patents

Abstract

The present invention provides a method for manufacturing a bumper guard for a vehicle in which an air blow molding of the frame coupling member of the synthetic support material is integrally formed at a predetermined position of a plurality of bumper guard frames constituting the bumper guard when manufacturing the bumper guard mounted to the bumper of the vehicle. It is about.

According to a preferred embodiment of the present invention, while placing a plurality of bumper guard frame side by side between the first and second molds which are mutually open, the vehicle body fixing piece is positioned on either side of the first and second molds, The synthetic water support material is supplied between the first and second molds so that the plurality of bumper guard frames are positioned inside the hollow, and the first and second molds are closed by closing the upper and lower sides of the synthetic water support material. The synthetic support material is air blow molded to the bumper guard frame so that the frame coupling member interconnecting the bumper guard frame is integrally formed and the vehicle body fixing piece is integrally embedded.

Preferably, an adhesive is applied to the bumper guard frame in which the frame coupling member is integrally formed, and a joint reinforcing structure of an uneven shape or an opening shape is formed on an outer circumferential surface of the bumper guard frame in which the frame coupling member is integrally formed. It is.

Description

Method for manufacturing bumper guard for vehicles {METHOD FOR PREPARING BUMPER GUARD OF VEHICLE}

The present invention relates to a method for manufacturing a bumper guard for a vehicle, and more particularly, to a method for manufacturing a bumper guard for a vehicle for manufacturing a bumper guard attachable to the front or rear of the vehicle by air blowing molding.

Currently, bumpers on the front and / or rear of a Jeep or RV (Recreational Vehicle) vehicle are optionally fitted with bumper guards to provide external aesthetics while preventing damage to the bumper during external contact of the vehicle. .

The bumper guard is designed in various forms to fit the shape of the vehicle, according to one example of the bumper guard shown in Figure 1 at least one second bumper guard frame (10) for the first bumper guard frame 10 of a constant length ( 12a and 12b are provided, and the first bumper guard frame 10 and the second bumper guard frame 12a and 12b are spaced apart from each other at regular intervals by a frame coupling member 14 manufactured by injection of a synthetic resin. Are combined in a closed state.

In addition, the frame cover member 16 formed by the injection of the synthetic resin is fixedly installed at the outer ends of the first and second bumper guard frames 10, 12a and 12b.

Here, the frame coupling member 14 is a first corresponding to the first bumper guard frame 10 and the second bumper guard frame (12a, 12b) by a plurality of screws 18 in a state mounted on the outer surface And it is fastened to the second bumper guard frame (10; 12a, 12b).

Preferably, the first bumper guard frame 10 is provided with a plurality of vehicle body fixing pieces 22 for coupling the corresponding bumper guards to the vehicle body 20, and screwing the vehicle body fixing pieces to the vehicle body. The guard is fixedly fixed to the body.

However, according to the bumper guard illustrated in FIG. 1, the frame coupling member 14 coupled to the first and second bumper guard frames 10, 12a and 12b is usually manufactured separately by injection molding, and then the first And as the screw is coupled to the second bumper guard frame (10, 12a, 12b) it becomes cumbersome to manufacture or assemble the bumper guard.

Accordingly, the present invention has been made in view of the above-described circumstances of the prior art, so that the frame coupling member is integrally formed on the first and second bumper guard frames by air blowing molding of a synthetic resin, thereby simplifying the manufacturing process of the bumper guards. It is an object of the present invention to provide a method for manufacturing a bumper guard for a vehicle to be executed.

In order to achieve the above object, according to a preferred embodiment of the present invention, a plurality of bumper guard frames are arranged side by side between the first and second molds which are mutually open, and on either side of the first and second molds. Positioning the vehicle body fixing piece, supplying a synthetic water support material between the first and second molds so that the plurality of bumper guard frames are located inside the hollow, and sealing the upper and lower sides of the synthetic water support material while the first and second Manufacturing a bumper guard for a vehicle in which the vehicle body fixing piece is integrally embedded while the second mold is closed and the blower guard frame is air blow molded to the synthetic support material so that the frame coupling member interconnecting the bumper guard frame is integrally formed. A method is provided.

Preferably, according to the present invention, an adhesive is applied to the bumper guard frame in which the frame coupling member is integrally formed.

On the bumper guide frame, uneven portions are formed at positions corresponding to both ends of the frame coupling member.

In addition. A coupling reinforcing structure is formed on an outer circumferential surface of the bumper guard frame in which the frame coupling member is integrally formed, and the coupling reinforcing structure is any one of an uneven shape and an opening shape on the outer circumferential surface of the bumper guide frame in which the frame coupling member is formed. It is formed in one shape.

According to the method for manufacturing a vehicle bumper guard according to the present invention, by placing a plurality of first and second bumper guard frame between the first and second mold and the first and second bumper guard frame is embedded Combining the predetermined position body frame of the first and second bumper guard frame by supplying a synthetic water support material in a cylindrical shape between the first and the second mold in the form and by air blowing molding while the first and second molds are closed The member is formed to obtain a bumper guard in which the frame coupling member is integrally formed with the first and second frame members.

Preferably, the first and the second bumper guard frame is coated with an adhesive to form an adhesive reinforcement to form an uneven shape or an opening shape reinforcing structure to increase the adhesion to the synthetic support material for forming the frame coupling member.

1 is a view for explaining a bumper guard for a vehicle according to a conventional example,

FIG. 2 is a cross-sectional view illustrating a coupling state of the bumper guard for a vehicle shown in FIG. 1;

3 is an exemplary view of a bumper guard for a vehicle manufactured according to the present invention;

4 and 5 are views referred to for explaining the manufacturing method of the vehicle bumper guard according to the present invention,

6A to 6D are views for explaining a bumper guard for a vehicle according to the present invention.

* Description of the symbols for the main parts of the drawings *

30a, 30b: bumper guard frame, 32: frame coupling member,

40a, 40b: first and second molds, 42: raw material supply member,

44: synthetic fee, 46: gripper,

48: closure, 50: frame fixation.

Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

3 is a schematic perspective view showing a bumper guard of a vehicle manufactured according to the present invention.

Referring to the drawings, the first and second bumper guard frame (30a, 30b) having a predetermined length is separately as it is integrated by the air coupling molded frame coupling members (32a, 32b) integrally on the outer periphery of the predetermined position The coupling by the screw of is eliminated.

4 and 5 are diagrams of a mold apparatus for explaining a method for manufacturing a bumper guard of a vehicle according to the present invention, for example, on the inner surfaces of the first and second molds 40a and 40b which are movable in the horizontal direction by hydraulic action. A shape for manufacturing a bumper guard of the type shown in FIG. 3 is formed, and from the raw material supply member 42 provided on the upper side of the first and second molds 40a and 40b, the molten synthetic water support material is cylindrical in shape. Is supplied.

In addition, upper and lower sides of the first and second molds 40a and 40b, a gripper 46 and a closure 48 are provided to secure the airtightness of the synthetic support material supplied in the cylindrical shape. ) Is installed.

In addition, between the first and second molds 40a and 40b, the first and second bumper guard frames 30a and 30b for the manufacture of the bumper guards are hollow inside the cylindrical synthetic support material 44. Side by side arranged in an acceptable range, the frame fixing body 50 is provided for positioning the first and second bumper guard frame (30a, 30b).

Therefore, the first and second molds 40a and 40b and the gripper 46 and the closure 48 are opened to each other in the initial stage of manufacturing the vehicle bumper guard according to the present invention by the above-described mold apparatus. I will wait.

In this state, the first and second bumper guard frames 30a and 30b are disposed side by side under the support of the frame fixing body 50 in the inner spaces of the first and second molds 40a and 40b.

Then, the synthetic water support material supplied from the raw material hopper is heated and melted while passing through the feed screw, and is cylindrically shaped while passing through the raw material supply member 42, so that the first and second bumper guard frames 30a and 30b are disposed therein. It is supplied between the first and second mold (40a, 40b) to be located.

Thereafter, the first and second molds 40a and 40b are closed, and the gripper 46 and the closure 48 are also closed, so that the upper and lower sides of the synthetic water support 44 are hermetically sealed.

The first and second parts corresponding to the position where the frame coupling member 32 is formed on the first and second bumper guard frames 30a and 30b when the first and second molds 40a and 40b are closed. The plurality of air blowing pins 52 provided in the molds 40a and 40b pass through the synthetic water support material 44 to perform air blowing, and accordingly, the first and second bumper guard frames 30a and 30b The frame coupling member 32 is integrally molded on the outer periphery.

The bumper guards in which the frame coupling members 32 are integrally formed in the first and second bumper guard frames 30a and 30b are taken out from the first and second molds 40a and 40b, for example, Post-processing, including removal, is performed to obtain a complete bumper guard.

Here, in the vehicle bumper guard according to the present invention obtained by the above process, as shown in Figs. 6a to 6d, the vehicle body fixing piece 56 for coupling to the vehicle body is embedded integrally during the air blowing molding. It is equipped.

In addition, at the positions of the first and second bumper guard frames 30a and 30b in which the frame coupling member 32 is integrally formed, the molding is applied by applying an adhesive for enhancing the adhesion of the frame coupling member 32. It is preferable to make it.

In addition, at the positions of the first and second bumper guard frames 30a and 30b in which the frame coupling member 32 is integrally formed, a coupling reinforcing structure 54 is formed, for example, an uneven shape or an opening shape, to form the frame. It is preferable that the coupling force of the coupling member 32 is enhanced.

In addition, according to the present invention further improves the adhesion and water tightness when the frame coupling member 32 is air blow molded at the position of the bumper guard frame (30a; 30b) corresponding to both ends of the frame coupling member 32 In order to make it possible, for example, it is preferable to treat the concave-convex portion (the shape of the concave portion 30c in FIG. 6D).

Therefore, the bumper guard for a vehicle manufactured by the present invention is advantageous because the fastening process by a separate screw is eliminated because the frame coupling member is integrally blown to the bumper guard frame.

In addition, by varying the shape of the first and second molds 40a and 40b in various ways, the shape of the first and second bumper guard frames 30a and 30b may also be variously modified to provide a bumper guard suitable for the shape of the vehicle. You can get it.

As described above, according to the method of manufacturing a bumper guard for a vehicle according to the present invention, as a result of forming a frame coupling member by integrally air blowing molding a plurality of bumper guard frames to form a frame coupling member, a coupling process by a separate screw is excluded. The manufacture of the bumper guard is simplified.

In addition, according to the present invention, since the synthetic support material is air blow molded to the plurality of bumper guard frames, it is possible to apply various types of bumper guard frames, thereby enabling the production of various types of bumper guards.

Claims (5)

A plurality of bumper guard frames are arranged side by side between the first and second molds that are open to each other, and the vehicle body fixing piece is positioned on one side of the first and second molds. Supplying a synthetic water support material between the first and second molds such that the plurality of bumper guard frames are located inside the hollow, While the upper and lower sides of the synthetic support material are sealed, the first and second molds are closed, and the synthetic resin support material is air blow molded to the bumper guard frame to form a frame coupling member integrally interconnecting the bumper guard frame. Method for manufacturing a bumper guard for a vehicle, characterized in that the body fixing piece is embedded integrally. The method of claim 1, wherein an adhesive is applied to the bumper guard frame in which the frame coupling member is integrally formed. The method of manufacturing a bumper guard for a vehicle according to claim 1 or 2, wherein a coupling reinforcement structure is formed on an outer circumferential surface of the bumper guard frame in which the frame coupling member is integrally formed. The method of claim 3, wherein the coupling reinforcing structure is formed on the outer circumferential surface of the bumper guard frame in which the frame coupling member is formed in any one of an uneven shape and an opening shape. According to claim 1, wherein the bumper guide frame manufacturing method of the bumper guard for a vehicle, characterized in that the position corresponding to both ends of the frame engaging member is formed in the uneven shape processing.