Foldable container

The foldable container design with pre-folds, a flexible bottom support, and a detachable pad ensures easy folding and stable support, addressing the challenges of conventional collapsible containers by enhancing deformation resistance and structural integrity.

JP3254928UActive Publication Date: 2026-02-27SHANGHAI REAL TRADING CO LTD
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Patent Information

Application Number
JP2025004530U
Authority / Receiving Office
JP · JP
Patent Type
Utility models
Current Assignee / Owner
Priority Date
2025-11-24
Filing Date
2025-12-30
Publication Date
2026-02-27
Estimated Expiration
2035-12-30

AI Technical Summary

Technical Problem

Conventional collapsible containers face challenges in achieving both ease of folding and stable support after unfolding, often compromising on deformation resistance or structural integrity due to the use of rigid or flexible materials.

Method used

A foldable container design featuring a foldable main body frame with pre-folds, a flexible bottom support structure, and a detachable pad, along with a connecting mechanism using hook holes and tongues, ensures smooth folding and stable support by allowing synchronized deformation of components.

Benefits of technology

The design enhances folding convenience while maintaining structural stability and durability, preventing deformation and tilting, and improves aesthetics by covering edge burrs, thus achieving both folding ease and robust support.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a foldable container that simultaneously achieves both convenience in folding and stable support performance after unfolding. [Solution] The folding body frame includes a folding main body frame, a bottom support structure, and a pad 3. The folding main body frame includes a front shielding plate 11, a first side shielding plate 12, a rear shielding plate 13, and a second side shielding plate 14 connected head to tail. The first side shielding plate and the second side shielding plate each have pre-folds 4. When the folding container is subjected to external force, the first side shielding plate and the second side shielding plate deform into a V shape along the pre-folds and are interposed between the front and rear shielding plates. The bottom support structure is connected to the bottom of the folding main body frame and surrounds a storage chamber that is open at the top. The bottom support structure can deform synchronously with the first side shielding plate and the second side shielding plate. The pad is detachably installed in the storage chamber and is used to regulate the position of the folding main body frame.
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Description

[Technical Field]

[0001] The present invention relates to the field of packaging, warehousing and household storage containers, and in particular to collapsible containers. [Background technology]

[0002] Collapsible containers can be folded for storage and have the advantage of saving space, making them widely applicable in packaging, warehouse storage, home storage, and other applications.

[0003] In the prior art, it is generally difficult for foldable containers to achieve both ease of folding and stable support performance after unfolding. For example, if a highly rigid material or structure is used to ensure support performance after unfolding, the deformation resistance during folding increases, making it prone to wear and tear due to uneven force application. If a flexible material or simple structure is used to improve foldability, the overall deformation resistance of the container after unfolding decreases, making it prone to tilting and deformation.

[0004] Furthermore, in terms of structural durability, conventional folding containers often use hard materials for the main body frame, and the notches on the edges are generally directly exposed. Furthermore, burrs and dust are easily generated due to friction, which affects the aesthetics and cleanliness and can also cause scratches.

[0005] Therefore, there is a need for a collapsible container that solves the above problems. Summary of the Invention [Problem to be solved by the invention]

[0006] The object of the present invention is to provide a foldable container that is both easy to fold and provides stable support after unfolding. [Means for solving the problem]

[0007] In order to solve the above problems, the present invention provides a foldable container, which includes a foldable main body frame, a bottom support structure, and a pad: the folding body frame includes a front shielding plate, a first side shielding plate, a rear shielding plate and a second side shielding plate connected head to tail in sequence; The first and second side shielding plates each have a pre-fold, and when the foldable container is subjected to an external force, the first and second side shielding plates are deformed into a V shape along the pre-fold, and are interposed between the front and rear shielding plates; the bottom support structure is connected to the bottom of the folding body frame and surrounds a storage chamber that is open at the top, and the bottom support structure can be deformed synchronously with the first side shielding plate and the second side shielding plate; The pad is detachably installed in the storage chamber and is used to regulate the position of the folding main body frame.

[0008] Furthermore, the bottom support structure is configured as a support net / cover made of flexible material.

[0009] Furthermore, the bottom mounting structure includes a first connecting plate, a second connecting plate, and two sets of supports; the first connecting plate and the second connecting plate are respectively installed at the bottom of the front shielding plate and the rear shielding plate, and the first connecting plate and the second connecting plate are respectively installed with a hook hole and a hook tongue for connecting to each other; The two sets of support parts are respectively installed at the bottom of the first side shielding plate and the second side shielding plate, and can be inverted along the direction approaching each other and covered and wrapped by the first connecting plate and the second connecting plate.

[0010] Furthermore, when the first connecting plate and the second connecting plate are separated, the support portion may be deformed synchronously with the first side shielding plate and the second side shielding plate.

[0011] Furthermore, each of the support parts of each set includes two support plates spaced apart from each other, forming a gap between the two support plates; Here, the gap matches the pre-fold.

[0012] Furthermore, when the hooking tongue portion passes through the hooking hole, the hooking tongue portion can come out of the gap and be connected to the two sets of support portions in an overlapping manner, thereby fixing the first connecting plate and the second connecting plate relative to each other.

[0013] Furthermore, the material of the folding body frame is selected from the group consisting of paper board, PP board, plastic board and composite board.

[0014] Furthermore, openings are provided in the front and rear shielding plates, and handles are fitted into the openings.

[0015] Furthermore, a border structure is provided on the top surface of the folding body frame.

[0016] Furthermore, the edge structure and the folding body frame are connected by sewing, by fusion by heat melting, or by adhesion with an adhesive. [Effects of the Invention]

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] By providing pre-folds on the first and second side shielding plates, when the foldable container is subjected to external force, the first and second side shielding plates deform accurately into a V-shape along the pre-folds and are interposed between the front and rear shielding plates, thereby reducing the resistance to the folding operation and improving folding convenience. A bottom support structure is provided at the bottom of the foldable main body frame, which surrounds the foldable main body frame and the storage chamber with an opening at the top, and can deform synchronously with the first and second side shielding plates, thereby avoiding the drawback of a rigid bottom being difficult to fold. A detachable pad is provided in the storage chamber, which can effectively restrict the position of the foldable main body frame after the foldable container is unfolded, without affecting the folding function of the container, thereby achieving the goals of both folding convenience and stable support performance after unfolding.

[0019] Furthermore, by installing a border structure on the folding body frame, it is possible to cover burrs on the top surface of the folding body frame, and to avoid the problem of the folding body frame being damaged by moisture, thereby improving the precision of the product accordingly. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a structural schematic diagram of a foldable container according to a first embodiment of the present invention; [Figure 2] 1 is a cross-sectional view of a foldable container according to a first embodiment of the present invention. [Figure 3] 1 is a plan view of the foldable container according to the first embodiment of the present invention during the folding process; FIG. [Figure 4] 10 is a structural schematic diagram of a bottom mounting structure of a foldable container according to a second embodiment of the present invention; [Figure 5] 10 is a structural diagram of the foldable container according to the second embodiment of the present invention when the support plate is folded. DETAILED DESCRIPTION OF THE INVENTION

[0021] The foldable container of the present invention will be described in more detail below with reference to the schematic drawings, in which preferred embodiments of the present invention are shown, and it should be understood that those skilled in the art can modify the present invention described herein and still achieve the advantageous effects of the present invention. Therefore, the following description should be understood as being familiar to those skilled in the art, but should not be construed as limiting the present invention.

[0022] Furthermore, based on the teachings of this specification, those skilled in the art may form new technical solutions by cross-referencing different embodiments on the premise that no technical contradictions arise, and any such modifications shall be deemed to fall within the scope of protection of this patent.

[0023] In the following paragraphs, the present invention will be described in more detail by way of example with reference to the drawings, from which the advantages and features of the present invention will become more apparent. Note that the drawings are all highly simplified and not to scale, and are only used for the purpose of easily and clearly illustrating the embodiments of the present invention.

[0024] Example 1 As shown in FIGS. 1 to 3, an embodiment of the present invention provides a foldable container, which includes a foldable main body frame 1, a bottom support structure 2 and a pad 3.

[0025] Here, the folding main body frame 1 includes a front shielding plate 11, a first side shielding plate 12, a rear shielding plate 13 and a second side shielding plate 14, which are connected head to tail in this order.

[0026] In addition, preliminary folds 4 are formed on both the first side shielding plate 12 and the second side shielding plate 14, and when the foldable container is subjected to an external force, the first side shielding plate 12 and the second side shielding plate 14 deform into a V shape along the preliminary folds 4 and are interposed between the front shielding plate 11 and the rear shielding plate 13. In other words, when folding is required, the first side shielding plate 12 and the second side shielding plate 14 are brought together along the sides that approach each other, and the first side shielding plate 12 and the second side shielding plate 14 can be contracted between the front shielding plate 11 and the rear shielding plate 13 by the action of the preliminary folds 4.

[0027] In addition, the bottom support structure 2 is connected to the bottom of the folding main frame 1 and surrounds a storage compartment that is open at the top, and the bottom support structure 2 can be deformed synchronously with the first side shielding plate 12 and the second side shielding plate 14. By allowing the bottom support structure 2 to deform synchronously with the folding of the first side shielding plate 12 and the second side shielding plate 14, not only can the requirements for placing items be met, but also restrictions on the folding function caused by a rigid bottom can be avoided, ensuring a smooth folding process.

[0028] The pad 3 is detachably installed in the storage chamber and is used to position the folding body frame 1. The detachable pad 3 can improve the structural stability and deformation resistance of the folding container when it is unfolded, and the detachable design does not affect the folding and storage performance, thereby achieving the goals of both convenience in folding and stable support performance after unfolding.

[0029] In this embodiment, the bottom support structure 2 is installed as a support net / cloth made of flexible material, and by utilizing the characteristics of flexible material that are adaptable to folding operations and performing the function of supporting items, it improves the deformation flexibility of the bottom support structure 2, ensures the synchronous folding of the first side shielding plate 12 and the second side shielding plate 14, and meets the load requirements.

[0030] Here, the flexible material carrying net / carrying cloth and the folding main frame 1 can be connected by thermal fusion or by using a connecting member to make a fixed engagement connection. Since this is a common technical means in the prior art, repeated explanations will be omitted here.

[0031] In another embodiment, the material of the folding body frame 1 is selected from the group consisting of paper board, PP board, plastic board, and composite board, and the folding body frame 1 has a certain rigidity and durability, meets the support requirements, and is adapted to the application requirements (such as structural strength and usage performance) of different usage scenarios.

[0032] In another embodiment, in order to provide a convenient gripping portion and facilitate the carrying and transport of the foldable container, the front and rear shielding plates 11 and 13 are further defined. Specifically, openings are provided in the front and rear shielding plates 11 and 13, and the handles 6 are fitted into the openings.

[0033] In addition, an edge structure (not shown) is installed on the top surface of the folding main body frame 1, which is used to shield edge burrs, prevent scratches during use, and improve the exquisite appearance of the product.

[0034] Furthermore, the edge structure and the folding body frame 1 are connected by sewing, by thermal melting, or by adhesive, thereby adapting to different material properties, ensuring the stability and reliability of the edge structure, and extending the service life of the product.

[0035] Example 2 As shown in Figures 4 and 5, the difference between this embodiment and Example 1 is that a different bottom support structure 2 is provided, which ensures the convenience of folding and further improves the support strength for items.

[0036] Specifically, the bottom support structure 2 includes a first connecting plate 21, a second connecting plate 22 and two sets of supports.

[0037] Here, the first connecting plate 21 and the second connecting plate 22 are respectively installed on the bottom of the front shielding plate 11 and the rear shielding plate 13, and a hook hole 211 and a hook tongue 221 are respectively installed on the first connecting plate 21 and the second connecting plate 22 for connecting to each other. The engagement of the hook hole 211 and the hook tongue 221 enables the assembly and disassembly of the bottom to be completed quickly, making the operation easy and the connection strong.

[0038] In addition, the two sets of support parts are respectively installed on the bottom of the first side shielding plate 12 and the second side shielding plate 14, and can be inverted in the direction approaching each other and covered and wrapped by the first connecting plate 21 and the second connecting plate 22. That is, the bottom mounting structure 2 is formed by the two sets of support parts, the first connecting plate 21 and the second connecting plate 22, which meets the mounting requirements, and when it needs to be folded, the hook openings 211 and the hook tongues 221 can be separated to separate into multiple parts, so that the bottom mounting structure 2 can be deformed along with the folding of the first side shielding plate 12 and the second side shielding plate 14.

[0039] Specifically, when the first connecting plate 21 and the second connecting plate 22 are separated, the support portion can be deformed synchronously with the first side shielding plate 12 and the second side shielding plate 14.

[0040] Here, each set of the support portions includes two support plates 23 installed at a distance from each other, forming a gap 5 between the two support plates 23, and the gap 5 matches the preliminary fold 4, so that when the first side shielding plate 12 and the second side shielding plate 14 are folded along the preliminary fold 4, the installation of the support pieces 23 does not cause interference.

[0041] Furthermore, when the hooking tongues 221 pass through the hooking holes 211, the hooking tongues 221 can protrude from the gaps 5 and are overlappingly connected to the two sets of supports, thereby fixing the first connecting plate 21 and the second connecting plate 22 relatively. That is, the gaps 5 not only prevent interference during the folding process, but also provide an escape space for the hooking tongues 221 to pass through the inside of the folding main frame 1, allowing the hooking tongues 221 to overlappingly connect to the supports to form a restraint structure, preventing the first connecting plate 21 and the second connecting plate 22 from separating, thereby improving the stability of the bottom supporting structure 2 when placed.

[0042] Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and its equivalents, the present invention also intends to include these modifications and variations. [Explanation of symbols]

[0043] 1...folding main body frame, 11...front shielding plate, 12...first side shielding plate, 13...rear shielding plate, 14...second side shielding plate, 2...bottom mounting structure, 21...first connecting plate, 211...hooking opening, 22...second connecting plate, 221...hooking tongue, 23...support plate, 3...pad, 4...preliminary fold, 5...gap, 6...handle.

Claims

1. A collapsible container, comprising: a collapsible body frame, a bottom resting structure, and a pad; The folding body frame includes a front shielding plate, a first side shielding plate, a rear shielding plate, and a second side shielding plate, which are connected head to tail in sequence; The first and second side shielding plates each have a pre-fold, and when the foldable container is subjected to an external force, the first and second side shielding plates are deformed into a V shape along the pre-fold, and are interposed between the front and rear shielding plates; the bottom support structure is connected to the bottom of the folding body frame and surrounds a storage chamber that is open at the top, and the bottom support structure can be deformed synchronously with the first side shielding plate and the second side shielding plate; The foldable container is characterized in that the pad is detachably installed in the storage chamber and is used to regulate the position of the foldable main body frame.

2. 2. The foldable container according to claim 1, wherein the bottom support structure is a flexible support net / cloth.

3. the bottom support structure includes a first connecting plate, a second connecting plate and two sets of supports; the first connecting plate and the second connecting plate are respectively installed at the bottom of the front shielding plate and the rear shielding plate, and the first connecting plate and the second connecting plate are respectively provided with a hook hole and a hook tongue for connecting to each other; 2. The foldable container according to claim 1, wherein the two sets of support parts are respectively installed at the bottom of the first side shielding plate and the second side shielding plate, and can be inverted in a direction approaching each other and covered and wrapped by the first connecting plate and the second connecting plate.

4. 4. The foldable container according to claim 3, wherein when the first connecting plate and the second connecting plate are separated, the support portion can be deformed synchronously along with the first side shielding plate and the second side shielding plate.

5. Each of the support portions of each set includes two spaced apart support plates, forming a gap between the two support plates; 5. The collapsible container according to claim 4, wherein the gap matches the pre-fold.

6. 6. The foldable container according to claim 5, wherein when the hooking tongues are passed through the hooking openings, the hooking tongues can come out of the gaps and are connected to two sets of the support parts in a stacked manner, thereby fixing the first connecting plate and the second connecting plate relative to each other.

7. 7. The foldable container according to claim 1, wherein the material of the foldable main body frame is selected from the group consisting of a paper board, a PP board, a plastic board, and a composite board.

8. The foldable container according to any one of claims 1 to 6, wherein openings are provided in the front and rear shielding plates, and handles are fitted into the openings.

9. The foldable container according to any one of claims 1 to 6, wherein a border structure is provided on an upper surface of the foldable main body frame.

10. 10. The foldable container according to claim 9, wherein the edge structure and the foldable body frame are connected by sewing, by fusion with heat, or by adhesion with an adhesive.