Door frame assembly and method of assembling the same

Abstract

The present disclosure relates to a door frame assembly which can include an outer frame, an assembly frame fixed to the outer frame, and an outer panel connected to the outer frame and the assembly frame and covering the outer frame and the assembly frame, wherein the outer panel is detachably mounted on the assembly frame and fixed to the outer frame.

Description

[0001] Cross-reference to related applications

[0002] This application claims priority to Korean Patent Application No. 10-2025-0026939, filed with the Korean Intellectual Property Office on February 28, 2025, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] This disclosure relates to door frame components and methods for assembling them. Background Technology

[0004] There are many types of car doors. For example, there are swing doors, which are mainly used in passenger cars; sliding doors, which are mainly used in mid-size passenger cars; and hatchback doors, which are mainly used in the rear tailgates of passenger cars and motorhomes (RVs).

[0005] Meanwhile, dedicated private vehicles (PBVs) have emerged as a potential mode of transportation for the future. The possibilities for expanding the functionality and design of PBVs based on their intended use are vast. A PBV is a new type of transportation tool, neither a public transport vehicle like a bus nor a personal passenger vehicle. Depending on the PBV it connects to, the purpose of the hub itself may change; the hub can be used as a flexible space.

[0006] In future cars, tailgates can be installed not only at the rear of the vehicle but also on the side, facilitating passenger entry and exit as well as cargo loading. Among these types of tailgates, a clamshell door that splits in the middle and opens vertically is gaining popularity because it requires less force and occupies less rear space compared to opening and closing a large single tailgate. Summary of the Invention

[0007] Embodiments of this disclosure provide clamshell door frame components and assembly methods thereof, which can reduce manufacturing costs.

[0008] Embodiments of this disclosure provide clamshell door frame components and assembly methods thereof, which can help reduce weight.

[0009] The embodiments of this disclosure provide clamshell door frame assemblies with improved joint stiffness and methods for assembling them.

[0010] According to embodiments of the present disclosure, a clamshell door frame assembly may include: an outer frame; an assembly frame fixed to the outer frame; and an outer panel connected to and covering the outer frame and the assembly frame, wherein the outer panel is detachably mounted on the assembly frame and fixed to the outer frame.

[0011] According to embodiments of this disclosure, a method for assembling a clamshell door frame may include: an outer frame preparation operation: preparing an outer frame including a first filling member and a second filling member; an insert frame pre-connection operation: pre-connecting an insert frame to the first filling member; an intermediate frame manufacturing operation: manufacturing an intermediate frame by connecting a plurality of intermediate frame components; a first intermediate frame connection operation: connecting one side of the intermediate frame to the second filling member; a second intermediate frame connection operation: placing the intermediate frame such that the other side of the intermediate frame faces the insert frame, and then rotating the insert frame to connect to the other side of the intermediate frame; and an outer panel connection operation: installing a side panel and a top panel on the intermediate frame, and then fixing the side panel and top panel to the first filling member and the second filling member. Attached Figure Description

[0012] The above and other features and advantages of exemplary embodiments of the present disclosure will become clearer from the following detailed description taken in conjunction with the accompanying drawings, wherein:

[0013] Figure 1 This is a schematic upper perspective view of a clamshell-type door frame assembly according to an embodiment of the present disclosure;

[0014] Figure 2 This is a schematic lower perspective view of a clamshell door frame assembly according to an embodiment of the present disclosure;

[0015] Figure 3 This is a bottom view of the top plate according to an embodiment of the present disclosure;

[0016] Figure 4 This is a side view of the top plate according to an embodiment of the present disclosure;

[0017] Figure 5 This is a front view of the side panel according to an embodiment of the present disclosure;

[0018] Figure 6 This is a side view of the side panel according to an embodiment of the present disclosure;

[0019] Figure 7 This is a perspective view of the upper part of a clamshell door frame assembly according to an embodiment of the present disclosure;

[0020] Figure 8 yes Figure 7 Exploded 3D diagram;

[0021] Figure 9 This is a perspective view of the lower part of a clamshell door frame assembly according to an embodiment of the present disclosure;

[0022] Figure 10 yes Figure 9 Exploded 3D diagram;

[0023] Figure 11 This is a flowchart of a clamshell door frame assembly method according to an embodiment of the present disclosure;

[0024] Figure 12 This is a perspective view showing the pre-connection structure of the insertion frame and the first filling member according to an embodiment of the present disclosure;

[0025] Figure 13 This is a perspective view showing an intermediate frame component according to an embodiment of the present disclosure;

[0026] Figure 14 This is a perspective view of the structure of the intermediate frame connected to the second filling member according to an embodiment of the present disclosure;

[0027] Figure 15 This is a cross-sectional view showing the construction of the intermediate frame connected to the second infill member according to an embodiment of the present disclosure;

[0028] Figure 16 This is a perspective view showing the structure of the connection between the insertion frame and the intermediate frame according to an embodiment of the present disclosure;

[0029] Figure 17 This is a cross-sectional view showing a construction in which an intermediate frame and an insert frame are placed opposite each other to connect the insert frame and the intermediate frame according to an embodiment of the present disclosure;

[0030] Figure 18 This is a cross-sectional view showing the construction of the connecting insertion frame and the intermediate frame according to an embodiment of the present disclosure;

[0031] Figure 19 This is a perspective view showing the assembly frame connected to the outer frame according to an embodiment of the present disclosure; and

[0032] Figure 20 This is a perspective view showing the construction of the outer panel connected to the outer frame according to an embodiment of the present disclosure. Detailed Implementation

[0033] The embodiments of this disclosure can be modified in various ways and present various alternative forms, specific exemplary embodiments of which are shown in the accompanying drawings and described in detail below. However, it is to be understood that this disclosure is not necessarily intended to limit this disclosure to the specific forms disclosed, but rather, this disclosure may cover modifications, equivalents, and alternatives that fall within the spirit and scope of this disclosure.

[0034] It should be understood that although terms such as “first” and “second” may be used herein to describe various elements, these elements are not necessarily limited to these terms. These terms may be used only to distinguish one element from another. For example, without departing from the scope of this disclosure, a first element may be referred to as a second element, and a second element may similarly be referred to as a first element. The term “and / or” as used herein includes any and all combinations of one or more of the related listed items.

[0035] The terminology used herein to describe exemplary embodiments of this disclosure is not intended to limit the scope of this disclosure. The article “a” (“a”, “an”) is singular because it refers to a single object, but its use in the singular form herein should not preclude the existence of more than one object. In other words, elements mentioned in the singular form in this disclosure may be counted as one or more unless the context clearly indicates otherwise. It will be further understood that the terms “comprising,” “including,” “including,” and / or “comprising” as used herein specify the presence of the stated features, numbers, steps, operations, elements, and / or components but do not preclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, and / or groups thereof.

[0036] Unless otherwise defined, the terms used herein, including technical and scientific terms, have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains. Terms as defined in common dictionaries are to be understood to have the same meaning as in the prior art context.

[0037] In the following description, directional terms such as “front,” “back,” “up,” “down,” “top,” and “bottom” are explained based on the accompanying drawings.

[0038] The exemplary embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0039] Figure 1 This is a schematic upper perspective view of a clamshell-type door frame assembly according to an embodiment of the present disclosure. Figure 2 This is a schematic lower perspective view of a clamshell-type door frame assembly according to an embodiment of the present disclosure.

[0040] Reference Figure 1 and Figure 2 According to embodiments of the present disclosure, the clamshell door frame assembly 1 may include an outer frame 100, an assembly frame 200, and an outer panel 300, any one, any combination, or all of which may be multiple, and may also include multiple components. The clamshell door frame assembly 1 of the present disclosure can be used in the vehicle passenger compartment and / or vehicle cargo area, and may also be a modular component of the vehicle body.

[0041] The outer frame 100 can constitute the basic frame of the clamshell door frame assembly 1. The outer frame 100 can be provided by connecting multiple frame modules. The outer frame 100 may include a first filling member 110 and a second filling member 120. The first filling member 110 can be disposed on one side of the clamshell door frame assembly 1 along its length. The first filling member 110 can be integrally inverted "U" shape. The length direction can refer to... Figure 1 The X-axis direction and the width direction can refer to Figure 1 The Y-axis direction, thickness, or height direction can refer to... Figure 1 The Z-axis direction in the equation.

[0042] The second filling member 120 may be spaced apart from the first filling member 110. For example, the second filling member 120 may be spaced apart from the first filling member 110 by a set, selected, or predetermined distance in the length direction. The second filling member 120 may be configured with a shape corresponding to the first filling member 110. For example, the second filling member 120 may be configured to be integrally inverted "U" shape. One side of the assembly frame 200 may be fixed to the first filling member 110. The other side of the assembly frame 200 may be fixed to the second filling member.

[0043] The first filling member 110 and the second filling member 120 can refer to the frames that constitute both sides of the clamshell door frame assembly 1 in the longitudinal direction. The shapes of the first filling member 110 and the second filling member 120 can be changed in various ways according to structural and design requirements or selections. In other words, the first filling member 110 and the second filling member 120 can be changed into various structures, as long as they can support the assembled frame 200, outer panel 300, etc., which will be described below, on both sides in the longitudinal direction.

[0044] The assembly frame 200 can be connected to the outer frame 100. The assembly frame 200 can be connected to the outer frame 100 at both ends along its length. The assembly frame 200, together with the outer frame 100, can form the skeleton of the clamshell door frame assembly 1. The assembly frame 200 can be arranged along its length. For example, the assembly frame 200 can be rod-shaped, with both ends connected to the outer frame 100. Multiple assembly frames 200 can be provided. For example, the assembly frame 200 can include: a top plate support assembly frame 200a, which is arranged above the outer frame 100 in the thickness direction to support the top plate 310; and a side plate support assembly frame 200b, which is arranged on one side in the width direction to support the side plate 320. In the assembly frame 200, the top plate support assembly frame 200a or the side plate support assembly frame 200b can be arranged at the overlapping portion of the top plate 310 and the side plate 320, and can simultaneously support both the top plate 310 and the side plate 320.

[0045] At least one top plate support assembly frame 200a and at least one side plate support assembly frame 200b may be provided. The top plate support assembly frame 200a and the side plate support assembly frame 200b may differ only in their connection positions with the outer frame 100, but may have the same structure. In this document, the top plate support assembly frame 200a and the side plate support assembly frame 200b may be collectively referred to as "assembly frame 200".

[0046] The outer panel 300 can form the outer surface of the clamshell door frame assembly 1. The outer panel 300 can be mounted on the assembly frame 200 and connected to the outer frame 100. For example, both ends of the outer panel 300 in the longitudinal direction can be connected to the outer frame 100, and the longitudinal inner side of the outer panel 300 can be mounted on the assembly frame 200. The outer panel 300 is detachably mounted on the assembly frame 200. The outer panel 300 can be fixed to the outer frame 100.

[0047] The outer panel 300 may include a top panel 310 and a side panel 320. The top panel 310 may form the upper surface of the clamshell door frame assembly 1. For example, the top panel 310 may be connected to the upper part of the outer frame 100. One longitudinal side of the top panel 310 may be connected to a first filling member 110, and the other longitudinal side may be connected to a second filling member 120. The top panel 310 may be mounted on the assembly frame 200. The side panel 320 may form the side of the clamshell door frame assembly 1. For example, the side panel 320 may be connected to the side of the outer frame 100. The side panel 320 may be connected to the first filling member 110 on one longitudinal side and to the second filling member 120 on the other longitudinal side. The side panel 320 may be mounted on the assembly frame 200.

[0048] Figure 3 This is a bottom view of the top plate according to an embodiment of the present disclosure. Figure 4 This is a side view of the top plate according to an embodiment of the present disclosure.

[0049] refer to Figure 3 and Figure 4 The top plate 310 may include top plate ribs 311. Top plate ribs 311 may be mounted on the assembly frame 200. Top plate ribs 311 may protrude from one side of the top plate 310. For example, top plate ribs 311 may protrude from the bottom surface of the top plate 310 towards the assembly frame 200. Top plate ribs 311 may be configured to extend from the bottom surface of the top plate 310 along its width. Multiple top plate ribs 311 may be provided. For example, multiple top plate ribs 311 may be configured to be spaced apart from each other at a set, selected, or predetermined distance along their length. One top plate rib 311 may be mounted on multiple assembly frames 200. For example, top plate ribs 311 may be mounted on multiple assembly frames 200 arranged along the width direction of the top plate ribs 311. The structure of the top plate ribs 311 may be varied according to their arrangement on the assembly frame 200. In other words, the shape of the top plate rib 311 corresponding to the component that protrudes from the bottom surface of the top plate 310 and is mounted on the assembly frame 200 can be changed to various shapes commonly used in the art to which this disclosure pertains.

[0050] The top rib 311 may be provided with a top rib groove 312 into which the assembly frame 200 can be inserted. The top rib groove 312 may be located at the end of the top rib 311 and may be recessed inward to a set, selected, or predetermined depth. At least one top rib groove 312 may be provided along the top rib 311. For example, multiple top rib grooves 312 may be provided along the width direction of the top rib 311.

[0051] The top plate rib groove 312 may include a portion where the spacing d1 gradually increases from the inside to the outside. The top plate rib groove 312 may include, for example, a first retaining portion 312a into which the assembly frame 200 is inserted, and at least a portion of its inner circumferential surface is in contact with the assembly frame 200; and a first insertion portion 312b extending outward from one side of the first retaining portion 312a, and having a portion where the spacing d1 gradually increases outward. The inner surface of the first retaining portion 312a may be configured to correspond to the shape of the outer surface of the assembly frame 200 it contacts. For example, the first retaining portion 312a may be circular with an opening on one side. The first insertion portion 312b may include a portion where the spacing d1 gradually increases outward from the opening. For example, the first insertion portion 312b may be tapered with the spacing d1 gradually increasing outward from the opening. By configuring the first insertion portion 312b as tapered, the assembly frame 200 can be easily inserted into the first retaining portion 312a when the top plate rib 311 is mounted on the assembly frame 200.

[0052] The top plate stiffener 311 can improve the rigidity of the top plate 310. With the top plate stiffener 311, the separate stiffening members connected to enhance the rigidity of the top plate 310 can be omitted, thereby reducing the weight of the top plate 310 and reducing manufacturing costs.

[0053] Figure 5 This is a front view of the side panel according to an embodiment of the present disclosure. Figure 6 This is a side view of the side panel according to an embodiment of the present disclosure.

[0054] See Figure 5 and Figure 6The side panel 320 may include side panel ribs 321. Side panel ribs 321 may be mounted on the assembly frame 200. Side panel ribs 321 may protrude from one surface of the side panel 320. For example, side panel ribs 321 may protrude from one surface of the side panel 320 toward the assembly frame 200. Side panel ribs 321 may be configured to extend along the thickness direction from one surface of the side panel 320. Multiple side panel ribs 321 may be provided. For example, multiple side panel ribs 321 may be spaced apart from each other in the length direction. Any one side panel rib 321 may be mounted on multiple assembly frames 200. For example, side panel ribs 321 may be mounted on multiple assembly frames 200 arranged along the height direction of the side panel ribs 321. The structure of the side panel ribs 321 may be changed according to their arrangement on the assembly frame 200. In other words, the shape of the side panel ribs 321 may be varied for the side panel ribs 321 corresponding to components protruding from one surface of the side panel 320 and mounted on the assembly frame 200.

[0055] The side plate rib 321 may be provided with a side plate rib groove 322 into which the assembly frame 200 can be inserted. The side plate rib groove 322 may be provided as the end of the side plate rib 321 and may be recessed inward to a set, selected or predetermined depth. At least one side plate rib groove 322 may be provided along the side plate rib 321. For example, multiple side plate rib grooves 322 may be provided along the height direction of the side plate rib 321.

[0056] The side plate rib groove 322 may include a portion where the spacing d2 gradually increases from the inside of the groove to the outside. The side plate rib groove 322 may include, for example, a second retaining portion 322a into which the assembly frame 200 can be inserted, and at least a portion of its inner circumferential surface can contact the assembly frame 200; and a second insertion portion 322b extending outward from one side of the second retaining portion 322a, and having a portion where the spacing d2 gradually increases outward. The inner surface of the second retaining portion 322a may be configured to correspond to the outer surface of the assembly frame 200 it contacts. For example, the second retaining portion 322a may be circular with an opening on one side. The second insertion portion 322b may include a portion where the spacing d2 gradually increases outward from the open side of the groove. For example, the second insertion portion 322b may be tapered with the spacing d2 gradually increasing outward from the open side. By configuring the second insertion portion 322b as tapered, the assembly frame 200 can be easily inserted into the second retaining portion 322a when the side plate rib 321 is mounted on the assembly frame 200.

[0057] The side plate stiffener 321 can improve the stiffness of the side plate 320. With the side plate stiffener 321, the separate stiffness reinforcing members connected to enhance the stiffness of the side plate 320 can be omitted, thereby reducing the weight of the side plate 320 and reducing manufacturing costs.

[0058] Figure 7 This is a perspective view of the upper part of a clamshell-type door frame assembly according to an embodiment of the present disclosure. Figure 8 yes Figure 7 An exploded 3D diagram.

[0059] Figure 7 and Figure 8 The assembly frame 200 shown may correspond to the top plate support assembly frame 200a. See also Figure 7 and Figure 8 The assembly frame 200 can be connected to the upper part of the outer frame 100. Two longitudinal ends of the assembly frame 200 can be connected to the outer frame 100. For example, one end of the assembly frame 200 can be connected to the first filling member 110, and the other end can be connected to the second filling member 120.

[0060] The assembly frame 200 may include an insertion frame 210 and an intermediate frame 220. The insertion frame 210 may be fixed to the first filling member 110. For example, the insertion frame 210 may be fixed to the inside of the first filling member 110. The insertion frame 210 may include an insertion frame body portion 211 fixed at one end to the first filling member 110, and an insertion frame bolt portion 212 provided on the other side of the insertion frame body portion 211. A screw hole 211a may be provided on one side of the insertion frame body portion 211. An insertion frame fixing plate 213 may be provided on the first filling member 110. The insertion frame body portion 211 may be connected to the insertion frame fixing plate 213 inside the first filling member 110 by fasteners 214 such as screws. The insertion frame 210 may be connected to the intermediate frame 220 through an insertion frame connection hole 110a provided in the first filling member 110.

[0061] The insert frame bolt portion 212 can be connected to the intermediate frame 220. For example, the insert frame bolt portion 212 can be connected to the intermediate frame component 220a constituting the intermediate frame 220 through the insert frame connection hole 110a. A nut portion 222 that can be screwed onto the insert frame bolt portion 212 can be provided at the end of the intermediate frame component 220a. The insert frame bolt portion 212 can be screwed onto the nut portion 222 of the intermediate frame component 220a. The insert frame bolt portion 212 and the bolt portion 221 provided in the intermediate frame component 220a can have the same screw specification. In other words, both the insert frame bolt portion 212 and the bolt portion 221 can be screwed onto the nut portion 222 of the intermediate frame component 220a.

[0062] One side of the intermediate frame 220 can be connected to the second filling member 120. The other side of the intermediate frame 220 can be connected to the insertion frame 210. A pipe nut 230 for connecting to the intermediate frame 220 can be provided inside the second filling member 120. The intermediate frame 220 can be constructed by connecting multiple intermediate frame components 220a in one direction. For example, the intermediate frame 220 can be constructed by connecting multiple intermediate frame components 220a along its length. A bolt portion 221 can be provided at one end of the intermediate frame component 220a. A nut portion 222 can be provided at the other end of the intermediate frame component 220a. The bolt portion 221 can be screwed onto the nut portion 222 of an adjacent intermediate frame component 220a.

[0063] The bolt portion 221 of any intermediate frame component 220a arranged adjacent to the second filling member 120 can be connected to the second filling member 120. For example, the bolt portion 221 of any intermediate frame component 220a arranged adjacent to the second filling member 120 can pass through the fastening hole 120a provided in the second filling member 120 and be connected to the tube nut 230 provided in the second filling member 120.

[0064] The insertion frame bolt portion 212 of the insertion frame 210 can be screwed to the nut portion 222 of one of the intermediate frame components 220a adjacent to the insertion frame 210.

[0065] A pipe nut 230 and a pipe nut support 231 may be provided to secure the intermediate frame 220 to the outer frame 100 and to distribute the load transmitted from the intermediate frame 220 to the outer frame 100. The intermediate frame component 220a of the intermediate frame 220 may be screwed to the pipe nut 230 through a fastening hole 120a formed in the outer frame 100.

[0066] The upper door mounting bracket 240 can be connected to the outer frame 100. For example, the upper door mounting bracket 240 can be connected to the upper part of the first filling member 110 and the second filling member 120. The upper door mounting bracket 240 can be configured to connect to a clamshell door (not shown) connected to the clamshell door frame assembly 1. A separate upper door hinge (not shown) can be connected to the upper door mounting bracket 240. At least a portion of the upper door mounting bracket 240 can be welded to the outer frame 100, or it can be connected using a separate fastening device (e.g., screws). The upper door mounting bracket 240 can be connected to the inner portions of the first filling member 110 and the second filling member 120 respectively located on both sides in the longitudinal direction. The lower portion 240a of the side of the upper door mounting bracket 240 facing the outer frame 100 can protrude and bend towards the outer frame 100. Therefore, a space can be left between the upper door mounting bracket 240 and the outer frame 100. The top plate rib 311 can be inserted into this space and installed on the assembly frame 200. At least a portion of the protruding and curved lower portion 240a of the upper door mounting bracket 240 can be welded to the inside of the outer frame 100. The upper door mounting bracket 240 may be provided with a through hole 240b through which the assembly frame 200 can pass in the longitudinal direction. The assembly frame 200 can be connected to the inner portion of the outer frame 100 by passing through the through hole 240b.

[0067] A support flange 241 may be provided to support the upper door mounting bracket 240 and distribute the load transmitted to the upper door mounting bracket 240 to the outer frame 100. The support flange 241 may be provided on one surface of the outer frame 100 facing the upper door mounting bracket 240. The support flange 241 may be connected to the outer frame 100 by welding or screws. The support flange 241 may contact the two outer surfaces of the upper door mounting bracket 240 in the width direction to support the upper door mounting bracket 240. The portion of the support flange 241 not in contact with the upper door mounting bracket 240 may be bent and connected to the outer frame 100. For example, the support flange 241 may be configured to have an "L"-shaped cross-section in the thickness direction. The support flange 241 may be provided in pairs. In other words, the support flange 241 may be provided in pairs and spaced apart from the inner surface of the outer frame 100 by a set, selected, or predetermined distance. The inner surfaces of the pair of support flanges 241 may respectively support the two outer surfaces of the upper door mounting bracket 240 in the width direction. The load transmitted to the upper door mounting bracket 240 can be distributed through the lower part 240a of the upper door mounting bracket 240 and the support flange 241, and then transmitted to the outer frame 100. Due to this load distribution, the structural stability of the clamshell door frame assembly 1 can be improved.

[0068] refer to Figure 9 and Figure 10 The assembly frame 200 can be connected to the side of the outer frame 100. Figure 9 and Figure 10The assembly frame 200 shown may correspond to the side panel support assembly frame 200b. For example, at least one assembly frame 200 may be provided on the side of the outer frame 100 along the height direction. Both ends of the assembly frame 200 in the length direction may be connected to the outer frame 100. For example, one end of the assembly frame 200 may be connected to the first filling member 110, and the other end may be connected to the second filling member 120. As described above, the structures of the top panel support assembly frame 200a and the side panel support assembly frame 200b may be substantially the same. Therefore, a detailed description of such structures will be omitted here.

[0069] Figure 11 This is a flowchart of a clamshell door frame assembly method according to an embodiment of the present disclosure.

[0070] The clamshell door frame assembly method according to the embodiments of this disclosure may include an outer frame preparation operation (operation S110), an insertion frame pre-connection operation (operation S120), an intermediate frame manufacturing operation (operation S130), a first intermediate frame connection operation (operation S140), a second intermediate frame connection operation (operation S150), and an outer panel connection operation (operation S160).

[0071] First, an outer frame preparation operation (operation S110) can be performed to prepare the outer frame 100. The outer frame 100 can constitute the basic skeleton of the clamshell door frame assembly 1. The outer frame 100 can be provided by connecting multiple frame modules. For example, the outer frame 100 may include a first filling member 110 disposed on one side in the length direction, and a second filling member 120 disposed at a predetermined, selected, or pre-set distance from the first filling member 110 in the length direction. The first filling member 110 may be configured to be integrally inverted "U" shape. The second filling member 120 may be integrally shaped corresponding to the first filling member 110. For example, the second filling member 120 may be integrally inverted "U" shape. One side of the assembled frame 200 can be fixed to the first filling member 110. The other side of the assembled frame 200 can be fixed to the second filling member.

[0072] Next, refer to Figure 12 The insertion frame 210 can be pre-connected (operation S120). The insertion frame 210 may include an insertion frame body 211 and an insertion frame bolt portion 212 protruding from the end of the insertion frame body 211. During the insertion frame pre-connection operation (operation S120), the insertion frame 210 can be arranged inside the first filling member 110. The insertion frame 210 can be pre-connected to an insertion frame fixing plate 213 inside the first filling member 110. A screw hole (211a, see [link]) can be provided on one side of the insertion frame body 211. Figure 17By screwing fasteners 214, such as screws, through the insert frame fixing plate 213 into the screw holes 211a of the insert frame 210, the insert frame 210 can be pre-connected to the insert frame fixing plate 213 inside the first filling member 110. Pre-connection refers to the state where the insert frame 210 is temporarily fixed to the insert frame fixing plate 213. In the pre-connected state, the insert frame 210 can be arranged inside the first filling member 110, thus avoiding interference during the assembly of the frame 200 connection (see...). Figure 15 However, in the pre-connected state of the insertion frame 210, a portion of the insertion frame 210 may protrude beyond the first filling member 110, provided that it does not interfere with the movement and arrangement of the assembly frame 200.

[0073] Next, refer to Figure 13 The intermediate frame manufacturing operation (operation S130) can be performed. However, the order of the intermediate frame 220 manufacturing operation (operation S130) and the insertion frame pre-connection operation (operation S120) can be disregarded. In other words, the intermediate frame manufacturing operation (operation S130) can be performed without regard to the order, as long as it is performed before the first intermediate frame connection operation (operation S140).

[0074] The intermediate frame 220 can be provided by connecting multiple intermediate frame components 220a in one direction. For example, the intermediate frame 220 can be provided by connecting multiple intermediate frame components 220a along its length. A bolt portion 221 can be provided at one end of the intermediate frame component 220a. A nut portion 222 can be provided at the other end of the intermediate frame component 220a. The bolt portion 221 can be screwed onto the nut portion 222 of an adjacent intermediate frame component 220a.

[0075] Next, refer to Figure 14 and Figure 15 The first intermediate frame connection operation (operation S140) can be performed. In the first intermediate frame connection operation (operation S140), one side of the intermediate frame 220 can be connected to the second filling member 120.

[0076] The bolt portion 221 of any intermediate frame component 220a arranged adjacent to the second filling member 120 can be connected to the second filling member 120. For example, the bolt portion 221 of an intermediate frame component 220a arranged adjacent to the second filling member 120 can pass through the fastening hole 120a provided in the second filling member 120 and be connected to the pipe nut 230 provided in the second filling member 120. The insertion frame 210 can be arranged in the first filling member 110 to avoid interfering with the connection between the intermediate frame 220 and the second filling member 120.

[0077] Subsequently, refer to Figure 16 The second intermediate frame connection operation (operation S150) can be performed. In the second intermediate frame connection operation (operation S150), the intermediate frame 220 and the insertion frame 210 can be connected together. The insertion frame bolt portion 212 of the insertion frame 210 can be screwed onto the nut portion 222 of one of the intermediate frame components 220a adjacently arranged on the insertion frame 210. With one end of the intermediate frame 220 fixed to the second filling member 120, the other end of the intermediate frame 220 can be mounted facing the insertion frame 210 (see...). Figure 17 When the other end of the intermediate frame 220 is placed facing the insertion frame 210, the insertion frame 210 can slide towards the intermediate frame 220, and the fastener 214 can rotate. When the fastener 214 rotates, the insertion frame 210 can rotate, and the insertion frame bolt portion 212 of the insertion frame 210 can be screwed into the nut portion 222 of the intermediate frame component 220a (see...). Figure 18 ).

[0078] The pre-connection operation of the insertion frame (operation S120), the intermediate frame manufacturing operation (operation S130), the first intermediate frame connection operation (operation S140), and the second intermediate frame connection operation (operation S150) can be performed multiple times, corresponding to the number of assembly frames 200 set in the outer frame 100. For example, Figure 19 The construction of four assembly frames 200 connected to the outer frame 100 is shown.

[0079] refer to Figure 20 After all the assembly frames 200 are assembled into the outer frame 100, the outer panel connection operation (operation S160) can be performed. In the outer panel connection operation (operation S160), the side panels 320 and the top panel 310 can be installed onto the intermediate frame 220, and then the side panels 320 and the top panel 310 can be fixed to the first filling member 110 and the second filling member 120.

[0080] In another embodiment of the present invention, the assembly method of the clamshell door frame assembly can be used to connect the intermediate frame components using bolts / nuts, and the outer panel and the assembly frame can be connected through the rib structure of the outer panel. Therefore, the assembly process can be simplified, thereby shortening manufacturing time and reducing manufacturing costs.

[0081] The clamshell door frame assembly and its assembly method according to embodiments of this disclosure can reduce costs.

[0082] The clamshell door frame assembly and its assembly method according to the embodiments of this disclosure can help reduce weight.

[0083] The clamshell door frame assembly and its assembly method according to embodiments of this disclosure can improve joint stiffness.

[0084] Although exemplary embodiments have been shown and described above, it will be apparent to those skilled in the art that modifications and variations may be made without departing from the scope of this disclosure as defined by the appended claims and their equivalents.

Claims

1. A door frame assembly, in, include: outer frame; Assemble the frame, which is fixed to the outer frame; and An outer panel that is connected to and covers the outer frame and the assembly frame, wherein the outer panel is detachably mounted on the assembly frame and secured to the outer frame.

2. The door frame assembly according to claim 1, wherein, The outer panel includes: A top plate, which is connected to the upper part of the outer frame and mounted on the assembled frame; and Side panels, which are connected to the sides of the outer frame and mounted on the assembled frame.

3. The door frame assembly according to claim 2, wherein, The top plate includes top plate ribs protruding into the assembly frame, and the top plate ribs are mounted on the assembly frame.

4. The door frame assembly according to claim 3, wherein, The top plate reinforcement includes a top plate reinforcement groove for the assembly frame to be inserted.

5. The door frame assembly according to claim 4, wherein, The top plate rib groove includes a rib groove portion, wherein the spacing of the rib groove portion gradually increases from the inner side of the groove to the outer side of the groove.

6. The door frame assembly according to claim 4, wherein, The top plate reinforcement groove includes: A first retaining portion, into which the assembly frame is inserted, and at least a portion of the inner peripheral surface of the first retaining portion contacts the assembly frame; and The first insertion portion has a rib groove portion that extends outward from the first card holder portion and whose spacing gradually increases outward.

7. The door frame assembly according to claim 2, wherein, The side plate includes side plate ribs protruding into the assembly frame, and the side plate ribs are mounted on the assembly frame.

8. The door frame assembly according to claim 7, wherein, The side plate reinforcement includes a side plate reinforcement groove for insertion into the assembly frame.

9. The door frame assembly according to claim 8, wherein, The side plate rib groove includes a rib groove portion, wherein the spacing of the rib groove portion gradually increases from the inner side of the groove to the outer side of the groove.

10. The door frame assembly according to claim 8, wherein, The side plate reinforcement groove includes: A second retaining portion, into which the assembly frame is inserted, and at least a portion of the inner peripheral surface of the second retaining portion contacts the assembly frame; and The second insertion portion has a rib groove portion that extends outward from the second card holder portion and whose spacing gradually increases outward.

11. The door frame assembly according to claim 1, wherein, The outer frame includes: A first filling member, which is fixed to a first side of the assembly frame; and The second filling member is spaced apart from the first filling member and fixed to the second side of the assembly frame.

12. The door frame assembly according to claim 11, wherein, The assembly frame includes: Insert a frame, which is fixed to the first filling member; and An intermediate frame having a first intermediate frame side connected to the insertion frame and a second intermediate frame side fixed to the second filling member, wherein the intermediate frame includes a plurality of intermediate frame components connected together.

13. The door frame assembly according to claim 12, wherein, The insertion frame includes: An insertion frame body portion having a first insertion frame end portion fixed to the first filling member; and An insertion frame bolt portion protrudes from the second insertion frame end of the insertion frame body portion and is connected to the first intermediate frame component among the plurality of intermediate frame components.

14. The door frame assembly according to claim 12, wherein, Each of the plurality of intermediate frame components includes: The bolt portion at the end of the first intermediate frame component; and The nut portion that is screwed onto the bolt portion at the end of the second intermediate frame component.

15. The door frame assembly according to claim 12, wherein, It also includes a tube nut, which connects the intermediate frame to the second filling member.

16. A method for assembling a door frame assembly, wherein, The method includes: Provide an outer frame including a first infill member and a second infill member; Connect the insertion frame to the first filling member; The intermediate frame is manufactured by connecting multiple intermediate frame components; Connect the first intermediate frame side of the intermediate frame to the second filling member; The intermediate frame is positioned such that the side of the second intermediate frame faces the insertion frame; The insertion frame is rotated in such a manner that it connects to the second intermediate frame side of the intermediate frame; Side panels and a top panel are mounted on the intermediate frame; and The side plate and the top plate are fixed to the first filling member and the second filling member.

17. The method according to claim 16, wherein, The insertion frame includes: An insertion frame body portion having a first insertion frame end portion fixed to the first filling member; and The insertion frame bolt portion protrudes from the second insertion frame end of the insertion frame body. Connecting the insertion frame to the first filling member includes placing the insertion frame inside the first filling member. The placement of the intermediate frame and the rotation of the insert frame in a manner that connects the insert frame to the second intermediate frame side of the intermediate frame include: Move the insertion frame toward the middle frame; At least a portion of the inserted frame bolt passes through the first filling member; and The insertion frame is connected to the second intermediate frame side of the intermediate frame arranged outside the first filling member.

18. The method according to claim 16, wherein, Connecting the insertion frame to the first filling member includes: Place the insertion frame within the first filling member; and Connect the insertion frame to the insertion frame fixing bolts.

19. The method of claim 16, wherein, The top plate includes top plate reinforcement installed on the intermediate frame, and the side plate includes side plate reinforcement installed on the intermediate frame.

20. The method according to claim 19, wherein, The top plate reinforcement includes a top plate reinforcement groove at the end of the top plate reinforcement, and the side plate reinforcement includes a side plate reinforcement groove at the end of the side plate reinforcement, wherein the top plate reinforcement groove and the side plate reinforcement groove each include a groove portion with a gradually increasing spacing outward.

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