Body reinforcement device for a vehicle

Abstract

This invention relates to a vehicle body reinforcement device disposed at a junction where multiple body components converge and connect to each other to link the body components. Specifically, the body reinforcement device includes: a reinforcement body formed as a 3D truss structure by a 3D printing process and having multiple extensions extending toward the body components; and fastening members integrally formed with the ends of the respective extensions by insertion during the 3D printing process, the fastening members having a first end and a second end, the first end being inserted into and integrated with the extensions, and the second end being fastened to the respective body components.

Description

Technical Field

[0001] This application relates to a body reinforcement device for vehicles. Background Technology

[0002] The statements in this section are provided only as background information relating to this application and do not constitute prior art.

[0003] Typically, a vehicle consists of a body and a chassis. The body forms the vehicle's exterior, while the chassis contains the main mechanical components needed to drive the vehicle.

[0004] Pillars are installed at the edges of the front and rear doors on opposite sides of the vehicle body to support them. The pillars form the overall shape of the vehicle body and maintain the rigidity of the sides of the body.

[0005] The main pillars are divided into: front pillars, which are set at a predetermined angle along the front-rear direction of the vehicle to support the front door and contact the rear end of the engine compartment at the front of the vehicle body; middle pillars, which are set vertically between the front and rear doors and support the front and rear doors as well as the side of the vehicle body that is opened by the door; and rear pillars, which are connected to the rear end of the rear door and support the rear door and the rear of the vehicle body.

[0006] The vehicle's struts are equipped with reinforcement devices that connect to the underside of the vehicle body, increasing the rigidity of the vehicle body.

[0007] Typically, reinforcement devices are made of materials such as steel or aluminum.

[0008] The foregoing is intended only to help understand the background of the present invention and is not intended to imply that the present invention falls within the scope of prior art known to those skilled in the art. Summary of the Invention

[0009] This invention improves vehicle body rigidity by using a 3D printer to fabricate a reinforcement into a 3D truss structure. Furthermore, the reinforcement improves body rigidity by connecting multiple body components extending from the body.

[0010] In one embodiment of the invention, a vehicle body reinforcement device is disposed at a junction where a plurality of body components converge and are connected to each other, and is configured to connect the body components. The body reinforcement device includes: a reinforcement body formed by 3D printing as a 3D truss structure and having a plurality of extensions extending toward the body components; and a fastening member integrally formed with the ends of the respective extensions by insertion during the 3D printing process, the fastening member having a first end and a second end, the first end being inserted into and integrated with the extensions, and the second end being fastened to the respective body components.

[0011] The fastening member can be a hollow column and can be configured such that a first end is inserted into and integrated with an extension of the reinforcement by 3D printing, and a second end is fastened to the vehicle body component by insertion.

[0012] The first end of the fastening member can be inserted into the extension, and the extension can be integrated with the first end of the fastening member while surrounding the outer peripheral surface of the first end of the fastening member.

[0013] The body reinforcement device may further include a connecting member, which is integrally formed with the reinforcement by inserting it during the 3D printing process. The connecting member is connected to the inner panel on the door mating flange side of the body in a manner that contacts the inner panel surface.

[0014] The connecting component may include a first stepped portion, the first stepped portion being formed such that the end of the connecting component is stepped in a predetermined cross section, the inner panel being in surface contact with the first stepped portion, and the end of the inner panel may have a second stepped portion, the second stepped portion being formed to correspond to the first stepped portion, such that the assembly position of the inner panel and the connecting component can be limited by the surface contact between the first stepped portion and the second stepped portion.

[0015] The body reinforcement may further include a weatherstripping that seals the door matching flange side of the body, wherein the weatherstripping may be connected to the inner panel and connecting components.

[0016] The reinforcement can be configured as multiple reinforcements, such that the corresponding reinforcements can be connected to opposite sides of the vehicle body, and the vehicle body components can include transverse members that connect the reinforcements on opposite sides of the vehicle to each other.

[0017] The vehicle body reinforcement device may further include fastening components, which are integrally formed with the reinforcement by being inserted during the 3D printing process, and transverse members are inserted into the fastening components, thereby enabling the transverse members to be connected to the reinforcements located on opposite sides of the vehicle body.

[0018] The body component may have an extension member that branches out and extends toward a reinforcement, and the extension member may have an extension end that is fastened to a fastening member and connected to the reinforcement.

[0019] The body component may consist of an upper component extending from the upper side of the body toward the reinforcement and a lower component extending from the lower side of the body toward the reinforcement.

[0020] Fastening components may include: an upper fastening component fastened to an upper component; and a lower fastening component fastened to a lower component.

[0021] A 3D truss structure can be a structure in which multiple points are connected to each other through multiple segments.

[0022] A 3D truss structure can be constructed such that the length of each segment connecting multiple points is equal to or less than 10 mm, and the diameter of the segment is equal to or less than 3 mm.

[0023] The reinforcement can be constructed such that its surface and interior form a 3D truss structure that connects multiple points using multiple segments.

[0024] The reinforcement can be applied to the rear strut of the vehicle body.

[0025] The vehicle body reinforcement device according to the present invention includes a reinforcement body that connects a plurality of components extending from the vehicle body, thereby achieving the effect of improving vehicle body rigidity.

[0026] In addition, the reinforcement can be made into a 3D truss structure using a 3D printer, thereby achieving the effects of reducing weight and improving stiffness.

[0027] In addition, the 3D truss structure is a structure that connects multiple points to each other through multiple segments, thereby providing the effect of applying reinforcements to the vehicle body.

[0028] Other applications will become apparent from the description provided herein. It should be understood that this specification and specific embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Attached Figure Description

[0029] To provide a good understanding of the invention, its various forms will now be described by way of example with reference to the accompanying drawings, wherein:

[0030] Figure 1 This is a perspective view showing the body reinforcement device used for the vehicle as seen from outside the vehicle body;

[0031] Figure 2 This is a perspective view showing the body reinforcement device as seen from inside the vehicle body;

[0032] Figure 3 This is a perspective view showing the external structure of the body reinforcement device;

[0033] Figure 4 This is a perspective view showing the interior of the reinforcement body of the vehicle body reinforcement device;

[0034] Figure 5 This is a perspective view showing the connecting components of the vehicle body reinforcement device;

[0035] Figure 6This is a view showing the connection between the weatherstripping and the connecting components of the inner panel and the body reinforcement unit;

[0036] Figure 7 This is a view showing the state after the weatherstripping is connected to the connecting parts of the inner panel and the body reinforcement device;

[0037] Figure 8 It is along Figure 7 The cross-sectional view obtained from the AA line; and

[0038] Figure 9 This is an enlarged view showing the 3D truss structure of the body reinforcement device.

[0039] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Detailed Implementation

[0040] The following description is merely exemplary in nature and is not intended to limit the invention, application, or use. It should be understood that throughout the drawings, corresponding reference numerals denote similar or corresponding parts and features.

[0041] The present invention can be implemented in many different forms without departing from its spirit and essential features. Therefore, the forms described herein are for illustrative purposes only and should not be construed as limiting the invention.

[0042] Since various modifications can be made to the forms of the invention in many different forms, various forms of the invention will now be mentioned in detail, specific examples of which are shown in the accompanying drawings and described below. Rather, the invention is intended to cover not only these exemplary forms, but also various alternative forms, modifications, equivalents and other forms that can be included within the spirit and scope of the invention.

[0043] It will be understood that although the terms "first," "second," etc., are used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the teachings of the invention, the first element discussed below may be referred to as the second element. Similarly, the second element may also be referred to as the first element.

[0044] It will be understood that when an element is referred to as "connected" or "attached" to another element, it can be directly connected to or linked to that other element, or there can be an intermediate element between them. Conversely, it should be understood that when an element is referred to as "directly connected" or "directly linked" to another element, there is no intermediate element. Other expressions describing relationships between elements, such as "between," "directly between," "adjacent to," or "directly adjacent to," should be interpreted in the same manner.

[0045] The terminology used herein is for descriptive purposes only and is not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the / said” are intended to include the plural forms as well. It will be further understood that, when used in this specification, the terms “comprising,” “including,” “having,” etc., indicate the presence of the said features, values, steps, operations, elements, components, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, values, steps, operations, elements, components, and / or combinations thereof.

[0046] Unless otherwise specified, all terms used herein, including technical and scientific terms, shall have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It will be further understood that the terms used herein should be interpreted as having the same meaning as they have in the context of this specification and related art, and shall not be construed as having an idealized or overly formal meaning unless expressly so defined herein.

[0047] Figure 1 This image shows a perspective view of a vehicle body reinforcement device as seen from outside the vehicle body 100 in one embodiment of the invention. Figure 2 This image shows a perspective view of a vehicle body reinforcement device as seen from inside the vehicle body 100 in one embodiment of the invention. Figure 3 An external perspective view of a reinforcement 200 for a vehicle body reinforcement device according to one form of the present invention is shown. Figure 4 An internal perspective view of a reinforcement 200 for a vehicle body reinforcement device according to one form of the present invention is shown. Figure 5 A perspective view of a connecting member 400 for a vehicle body reinforcement device according to one embodiment of the present invention is shown. Figure 6 This diagram shows a view in one embodiment of the invention where the weatherstripping 500 is connected to the inner panel 130 and the connecting member 400 for a vehicle body reinforcement device. Figure 7 This view shows the state of a weatherstripping 500 according to one embodiment of the present invention after being connected to an inner panel 130 and a connecting member 400 for a vehicle body reinforcement device. Figure 8 It is along Figure 7 The cross-sectional view obtained from the AA line. Figure 9 An enlarged view of the 3D truss structure of the reinforcement 200 for a vehicle body reinforcement device in some forms of the present invention is shown.

[0048] In the following text, reference will be made to Figures 1 to 9 To describe an exemplary form of a vehicle body reinforcement device according to the present invention.

[0049] The vehicle body reinforcement device according to the invention is a device that improves the rigidity of the vehicle body 100 by connecting a plurality of body members 110 extending from the frame of the vehicle body 100 to reinforce the vehicle body 100.

[0050] According to one form of the present invention, a vehicle body reinforcement device is a device installed to reinforce the rear strut of a vehicle, and may also be installed on a vehicle to reinforce the front strut instead of the rear strut, or installed on other body reinforcement devices.

[0051] In one form, the body reinforcement device is positioned at the junction where multiple body components 110 converge and connect to each other, thereby connecting the body components 110. Specifically, the body reinforcement device is formed as a 3D truss structure through a 3D printing process. The body reinforcement device for a vehicle includes: at least one reinforcement body 200 having a plurality of extension portions 210 extending toward the body component 110; and a fastening member 300 integrally formed with the ends of each extension portion 210 by insertion during a 3D printing process, the fastening member 300 having a first end and a second end, the first end being inserted into and integral with the extension portion 210, and the second end being fastened to each body component 110.

[0052] Further reference Figures 1 to 4 To improve the rigidity of the body 100, a body member 110 extending from the body 100 is formed, and a reinforcement 200 for connecting the body member 110 is formed. The reinforcement 200 can be manufactured using a 3D printer, and the shape of the reinforcement 200 can be formed as a 3D truss structure to further improve rigidity compared to conventional reinforcements. Moreover, since conventional reinforcements are made of materials such as steel or aluminum, the reinforcement 200 has the effect of reducing weight compared to conventional reinforcements. Furthermore, when the reinforcement 200 is manufactured simultaneously with other parts in a single printing process using a 3D printer, it has the effect of reducing manufacturing costs.

[0053] Furthermore, since the reinforcement 200 is made into a 3D truss structure, it has the following effect: in addition to reinforcing the applied rear strut in one form of the invention, the reinforcement 200 can also be applied to other locations of the vehicle body 100 to reinforce the vehicle body 100.

[0054] In order to connect the reinforcement 200 and the body component 110, an extension portion 210 is provided extending from the reinforcement 200, and each extension portion 210 is provided with a fastening member 300 having a first end inserted into the extension portion 210 and integrated with the extension portion 210.

[0055] The fastening member 300 may extend in the direction in which each of the body components 110 extends and connect to the body component 110. In one embodiment of the invention, the fastening member 300 may be connected by insertion into the body component 110, but is not limited thereto. For example, the body component 110 may be inserted into the fastening member 300, or the body component 110 and the fastening member 300 may be connected to each other by welding or other methods.

[0056] The body component 110 can be made into the shape of a hollow shaft, but is not limited thereto. For example, to improve rigidity, the body component 110 can be made into a structure in which ribs are formed, the ribs having a grid cross-sectional shape.

[0057] The fastening member 300 has a hollow cylindrical shape and is configured such that a first end is inserted into and integrated with the extension 210 of the reinforcement 200 by 3D printing, and a second end is fastened to the body component 110 by insertion.

[0058] Further reference Figures 3 to 4 Before 3D printing the reinforcement 200, the fastening member 300 can be inserted into the 3D printer, and then the reinforcement 200 can be 3D printed to obtain a reinforcement 200 with the fastening member 300 inserted in the reinforcement 200.

[0059] This allows the reinforcement 200 and the fastening member 300 to be manufactured as a single unit, resulting in a very strong connection. Furthermore, no additional separate process is required to join the reinforcement 200 and the fastening member 300, thus reducing the number of manufacturing steps.

[0060] The first end of the fastening member 300 is inserted into the extension portion 210, and the extension portion 210 is integrated with the first end of the fastening member 300 while surrounding the outer peripheral surface of the first end of the fastening member 300.

[0061] When manufacturing the reinforcement 200, the first end of the fastening member 300 is configured to be inserted into the extension portion 210 of the reinforcement 200, and the extension portion 210 is formed while surrounding the fastening member 300. Therefore, a very strong connection can be formed between the fastening member 300 and the extension portion 210.

[0062] The invention further includes a connecting member 400, which is integrally formed with the reinforcement 200 by inserting the connecting member 400 during the 3D printing process, and the connecting member 400 is connected to the inner panel 130 on the door mating flange side of the vehicle body 100 in such a way that it contacts the surface of the inner panel 130.

[0063] Further reference Figures 5 to 6 When manufacturing the reinforcement 200, a connecting part 400, which is a different part from the fastening member 300, can be inserted into a 3D printer. The reinforcement 200 can then be 3D printed, so that the connecting part 400 can be integrally formed with the reinforcement 200 while a portion of it is inserted into the reinforcement 200.

[0064] This allows the reinforcement 200 and the connecting component 400 to be integrally manufactured as a single unit, resulting in a very strong connection. Furthermore, no additional separate process is required to join the reinforcement 200 and the connecting component 400, thus reducing the number of manufacturing steps.

[0065] The connecting member 400 can be connected to the inner panel 130 on the door mating flange side of the vehicle body 100 in a manner that contacts the surface of the inner panel 130. The inner panel 130 can be manufactured as an upper inner panel 131 and a lower inner panel 132, and the end of the connecting member 400 can be connected to the upper inner panel 131 and the lower inner panel 132 to connect the upper inner panel 131 and the lower inner panel 132 to each other.

[0066] This allows for the following effect: improved rigidity of the inner panel 130 on the door mating flange side of the body 100.

[0067] The connecting member 400 includes a first stepped portion 410, which is formed such that the end of the connecting member 400 is stepped in a predetermined cross section. The inner panel 130 is in surface contact with the first stepped portion 410, and the inner panel 130 has an end provided with a second stepped portion 133, which is formed to correspond to the first stepped portion 410, so that the assembly position of the inner panel 130 and the connecting member 400 is limited by the surface contact between the first stepped portion 410 and the second stepped portion 133.

[0068] The connecting component 400 may have an end that connects to the inner panel 130, and may be provided with a first stepped portion 410 formed in a stepped shape at its end. The end of the inner panel 130 may be provided with a second stepped portion 133, which is formed to correspond to the first stepped portion 410, such that the second stepped portion 133 can be assembled to correspond to the first stepped portion 410, thereby improving accuracy during assembly. The first stepped portion 410 and the second stepped portion 133 can be integrated by a connection method such as spot welding while the first stepped portion 410 and the second stepped portion 133 are in surface contact with each other.

[0069] The invention further includes a weatherstripping 500 for sealing the door mating flange side of the vehicle body 100, wherein the weatherstripping 500 is connected to the inner panel 130 and the connecting member 400.

[0070] The first stepped portion 410 can be formed on each of the opposite sides of the end of the connecting member 400, and the second stepped portion 133 of the inner panel 130 can be assembled and connected to the first stepped portion 410, so that the inner panel 130 and the connecting member 400 can be integrally connected to each other. Then, a weatherstripping 500 for sealing the door mating flange side of the vehicle can be provided, the weatherstripping 500 can be connected to the integrally connected inner panel 130 and the connecting member 400, so that the weatherstripping 500 can be installed to the vehicle body 100.

[0071] The reinforcement 200 is configured as a plurality of reinforcements 200 such that the reinforcements 200 are coupled to opposite sides of the vehicle body 100, and the vehicle body member 110 includes a transverse member 120 for connecting the reinforcements 200 located on opposite sides of the vehicle.

[0072] The corresponding reinforcements 200 can be mounted on opposite pillars of the vehicle body 100 so that they are opposite to each other. The transverse member 120 can be formed to extend in opposite directions of the reinforcements 200 and connect the opposite reinforcements 200 to each other while traversing the center of the vehicle. The transverse member 120 has the effect of improving the stiffness of the reinforcements 200 by connecting the reinforcements 200 located on opposite sides of the vehicle body 100.

[0073] In one embodiment, the fastening member 600 is integrally formed with the reinforcement 200 by inserting the fastening member during the 3D printing process, and the transverse member 120 is inserted into the fastening member, thereby connecting the transverse member 120 to the reinforcement 200 located on opposite sides of the vehicle body 100.

[0074] Further reference Figure 2 and Figure 4To attach the transverse member 120 (which connects the reinforcements 200 located on opposite sides of the vehicle body 100) to the reinforcement 200, the fastening member 600 can be inserted into the 3D printer along with the fastening member 300 before the reinforcement 200 is 3D printed. The reinforcement 200 can then be 3D printed, so that the fastening member 600 can be integrally formed with the reinforcement 200. The fastening member 600 can be attached to the transverse member 120 at a location on the vehicle interior side of the reinforcement 200.

[0075] Although the fastening member 600 is described as being inserted into and connected to the fastening member 600 by means of the transverse member 120, the invention is not limited thereto. For example, the fastening member 600 may be formed to protrude from the reinforcement 200, and the fastening member 600 and the transverse member 120 may be connected by various methods, such as by means of inserting the fastening member 600 into and fastening it to the transverse member 120.

[0076] The body component 110 has an extension member 140 that branches out and extends toward the reinforcement 200, the extension member 140 having an extension end that is fastened to the fastening member 300 and connected to the reinforcement 200.

[0077] The extension member 140 can branch off from the body member 110 and extend toward the reinforcement 200, and its end can be connected to the fastening member 300 of the reinforcement 200. This improves the connection force between the body member 110 and the reinforcement 200, thus improving the stiffness of the reinforcement 200, the body member 110 and the body 100.

[0078] The vehicle body component 110 includes an upper component 111 extending from the upper side of the vehicle body 100 toward the reinforcement 200 and a lower component 112 extending from the lower side of the vehicle body 100 toward the reinforcement 200.

[0079] The body component 110 includes a plurality of upper components 111 and a plurality of lower components 112. The upper components 111 are formed to extend from the upper struts of the body 100 toward the reinforcement 200, and the lower components 112 are formed to extend from the fender mating flange side of the lower side of the body 100, thereby connecting the upper components 111 and the lower components 112 to each other via the reinforcement 200. This allows the upper and lower sides of the vehicle to be connected to each other, thereby providing an effect of improved rigidity.

[0080] The fastening member 300 includes: an upper fastening member 310 fastened to each of the upper members 111; and a lower fastening member 320 fastened to each of the lower members 112.

[0081] The fastening member 300 includes: an upper fastening member 310 inserted into the end of the extension portion 210 extending toward the upper member 111, and having a first end integrated with the reinforcement 200 and a second end connected to the upper member 111; and a lower fastening member 320 inserted into the end of the extension portion 210 extending toward the lower member 112, and having a first end integrated with the reinforcement 200 and a second end connected to the lower member 112.

[0082] This allows the upper component 111 and the lower component 112 to be connected to the reinforcement 200, thus improving the overall rigidity of the vehicle body 100.

[0083] A 3D truss structure is a structure in which multiple points are connected to each other through multiple segments.

[0084] Further reference Figures 3 to 4 The 3D truss structure constituting the reinforcement 200 is a structure that connects multiple points using multiple segments. This allows the reinforcement 200 to be manufactured by 3D printing, thereby creating reinforcements 200 of various shapes with a 3D truss structure, and reinforcing the vehicle body 100 at various vehicle locations other than the location that is one form of the present invention.

[0085] The 3D truss structure is constructed such that the length of each segment connecting multiple points is equal to or less than 10 mm, and the diameter of the segment is equal to or less than 3 mm.

[0086] Further reference Figure 9 When the angle with the stacking direction is equal to or greater than 45°, 3D printing technology requires a support structure. However, in the 3D truss structure according to the present invention, by designing the length of the segments to be equal to or less than 10 mm and the diameter of the segments to be equal to or less than 3 mm, a printing technology that does not require a support structure is applied.

[0087] In one embodiment of the invention, the length of the segment is 6 mm, and the diameter of the segment is 1 to 2 mm.

[0088] The reinforcement 200 is constructed such that its surface and interior are formed as a 3D truss structure that connects multiple points using multiple segments.

[0089] Due to the 3D truss structure on the surface and inside of the reinforcement 200, the reinforcement 200 has improved stiffness compared to a conventional reinforcement, thus enabling it to withstand the combined loads transmitted from the body component 110.

[0090] The reinforcement 200 is applied to the rear strut of the body 100.

[0091] According to one form of the present invention, a vehicle body reinforcement device is manufactured to reinforce the rear pillar side of the vehicle body 100, and various forms of the present invention can be applied to various locations of the vehicle body 100 and the rear pillar side of the vehicle body 100 to provide the effect of reinforcing the vehicle body 100.

[0092] Although the invention has been described in reference to specific forms, those skilled in the art will understand that various modifications, additions, and substitutions can be made without departing from the scope and spirit of the invention.

Claims

1. A body reinforcement device for a vehicle, the body reinforcement device being configured to connect body components and being disposed at the joints where the body components connect to each other, the body reinforcement device comprising: At least one reinforcement, which is formed into a three-dimensional truss structure via a 3D printing process, and has a plurality of extensions extending toward the vehicle body component; as well as A fastening member is integrally formed with the ends of each of a plurality of extensions by inserting the fastening member during the 3D printing process. The fastening member includes a first end and a second end. The first end is inserted into the corresponding extension portion and integrated with the corresponding extension portion. The second end is fastened to the corresponding body component in the body component. The vehicle body reinforcement device further includes: A connecting component, which is integrally formed with the at least one reinforcement by inserting the connecting component during the 3D printing process. The connecting component forms surface contact with the inner panel on the door matching flange side of the vehicle body.

2. The vehicle body reinforcement device according to claim 1, wherein, The fastening member has a hollow cylindrical shape, such that the first end is inserted into the corresponding extension during the 3D printing process and integrated with the corresponding extension, and the second end is fastened to the corresponding body component by insertion.

3. The vehicle body reinforcement device according to claim 2, wherein, The first end of the fastening member is inserted into the corresponding extension, and the corresponding extension is integrated with the first end of the fastening member while surrounding the outer peripheral surface of the first end of the fastening member.

4. The vehicle body reinforcement device according to claim 1, wherein: The connecting component includes a first stepped portion, which is formed such that the end of the connecting component is stepped in a predetermined cross-section. The inner panel forms surface contact with the first stepped portion. The end of the inner panel has a second stepped portion, which is formed to correspond to the first stepped portion, such that the assembly position of the inner panel and the connecting component is limited by the surface contact between the first stepped portion and the second stepped portion.

5. The vehicle body reinforcement device according to claim 1, further comprising: A weatherstripping, configured to seal the door flange side of the vehicle body. The weatherstripping is connected to the inner panel and the connecting component.

6. The vehicle body reinforcement device according to claim 1, wherein, The at least one reinforcement includes a plurality of reinforcements, such that the respective reinforcements are connected to opposite sides of the vehicle body. The vehicle body component includes a transverse member that connects multiple reinforcements on opposite sides of the vehicle to each other.

7. The vehicle body reinforcement device according to claim 6, further comprising: A fastening component is integrally formed with a corresponding reinforcement in a reinforcement by inserting the fastening component during the 3D printing process, wherein one of the transverse members is inserted into the fastening component, thereby connecting the transverse member to reinforcements on opposite sides of the vehicle body.

8. The vehicle body reinforcement device according to claim 1, wherein, The vehicle body component has an extension member that branches out and extends toward the at least one reinforcement. The extension member has an extension end, which is fastened to the fastening member and connected to the at least one reinforcement.

9. The vehicle body reinforcement device according to claim 8, wherein, The fastening components include: Upper fastening member, which is fastened to the upper member; and The lower fastening component is fastened to the lower component.

10. The vehicle body reinforcement device according to claim 1, wherein, The vehicle body component includes: an upper component extending from the upper side of the vehicle body toward the at least one reinforcement, and a lower component extending from the lower side of the vehicle body toward the at least one reinforcement.

11. The vehicle body reinforcement device according to claim 1, wherein, A three-dimensional truss structure is a structure that connects multiple points to each other through multiple segments.

12. The vehicle body reinforcement device according to claim 11, wherein, The three-dimensional truss structure is constructed such that the length of each of the multiple segments connecting multiple points is equal to or less than 10 mm, and the diameter of each of the multiple segments is equal to or less than 3 mm.

13. The vehicle body reinforcement device according to claim 11, wherein, The at least one reinforcement is configured such that its surface and interior form a three-dimensional truss structure in which multiple points are connected by multiple segments.

14. The vehicle body reinforcement device according to claim 1, wherein, The at least one reinforcement is applied to the rear strut of the vehicle body.

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