A folding luggage case and support structure therefor
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- XIAMEN WORTHFIND IND CO LTD
- Filing Date
- 2026-06-10
- Publication Date
- 2026-07-24
Smart Images

Figure CN122439980A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of luggage technology, and in particular to a folding luggage and its support structure. Background Technology
[0002] In recent years, with economic development, people have had significantly more opportunities to travel abroad for business or tourism. Whether for business or leisure, suitcases are typically needed to carry luggage. The known structure of a suitcase mainly includes a box for storing items, wheels at the bottom for easy sliding, and handles and a pull rod for pulling the suitcase. To provide users with sufficient space to store their belongings, most suitcases, regardless of material, are designed to be relatively large. This means that when a suitcase is not in use, it needs to be stored in a storage room or suitable space. However, in today's relatively limited living environments, the large size of suitcases not only occupies a considerable amount of space, but their usage frequency is also low, only being used when traveling. Therefore, limited storage space at home is often occupied by infrequently used suitcases, causing inconvenience for users in terms of storage.
[0003] Currently, some foldable suitcase structures have emerged, allowing suitcases to be folded for storage when not in use, making them easier to move and pack. However, existing foldable suitcase structures are relatively complex, and their folded size is still not small enough. At the same time, the folding design also limits the space available for structural design, resulting in relatively limited functionality. Summary of the Invention
[0004] Therefore, in response to at least one of the above problems, the present invention provides a foldable suitcase and its support structure.
[0005] This invention is implemented using the following scheme: This invention proposes a support structure for a foldable suitcase. The support structure includes a first support edge, a first side edge, a second support edge, and a second side edge connected end-to-end. The first support edge and the second support edge are arranged opposite to each other, and the first side edge and the second side edge are arranged opposite to each other. The support structure is designed to be detachably installed in the suitcase body. The first support edge is used to connect to and support the side wall of the suitcase body, and the second support edge is used to limit and abut against the bottom wall of the suitcase body, so that the suitcase body can be supported by the support structure and kept in the unfolded state. When the support structure is removed from the suitcase body, the suitcase body can be folded from the unfolded state to the folded state. The support structure is designed as a hook frame structure, so that the support structure can be used to hang items after being removed from the suitcase body.
[0006] In one embodiment, each of the first side and the second side includes a flat support segment and an inclined extension segment connected to each other, the angle between the inclined extension segment and the flat support segment being an obtuse angle, the flat support segment being used to support the bottom wall, and the inclined extension segment being used to form a triangular support structure with the bottom wall and the side wall.
[0007] In one embodiment, the second support edge is provided with a plurality of curved portions and a plurality of straight portions separated by the curved portions; the curved portions and the flat support section form a hook-like structure at the end of the inclined extension section, thereby realizing that the support structure is designed as a hook frame structure.
[0008] In one embodiment, the projection of the curved portion onto a plane perpendicular to the straight portion is perpendicular to the flat support section, and the curved portion is used to avoid the tube section of the pull rod assembly or the reinforcing structure in the suitcase body.
[0009] In one embodiment, the inclined extension bends toward the bottom wall and the side wall.
[0010] The present invention also proposes a foldable suitcase, including a suitcase body, the suitcase body including four side walls, a bottom wall, and a top wall; the suitcase body can switch between an unfolded state and a folded state; the suitcase body is detachably installed with the support structure as described above; when the support structure is installed in the suitcase body, the first support edge connects to and supports the side wall, and the second support edge is limited and abuts against the bottom wall.
[0011] In one embodiment, the four sidewalls include a left sidewall, a right sidewall, a rear sidewall, and a front sidewall. The first supporting edge connects to and supports the rear sidewall or the front sidewall, and the first sidewall and the second sidewall provide support for the left sidewall and the right sidewall.
[0012] In one embodiment, at least one limiting member is provided on the bottom wall, the limiting member abutting against the second supporting edge in a direction toward the side wall to form a limiting action; and / or, The sidewall is provided with a connecting structure; the connecting structure includes a connecting strap, and at least one of a fastener and a Velcro strap, and the first support edge is connected to the sidewall through the connecting structure.
[0013] In one embodiment, the second support edge is provided with a plurality of bends, which are used to avoid the tubular segments of the pull rod assembly or the reinforcing structures in the suitcase body.
[0014] In one embodiment, each of the first side and the second side includes a flat support section and an inclined extension section connected to each other. The flat support section is supported on the bottom wall, and the inclined extension section forms a triangular support structure with the bottom wall and the side wall.
[0015] The technical solution provided by this invention has the following technical effects: This invention provides a foldable suitcase and its supporting structure. The suitcase includes a suitcase body, and the supporting structure is designed to be detachably installed within the suitcase body. The suitcase body can be supported by the supporting structure and held in an unfolded state. When the supporting structure is removed from the suitcase body, the suitcase body can be folded from the unfolded state to a folded state. The folded state of the suitcase saves space. The supporting structure is designed as a hook frame, allowing it to be used for hanging items after being removed from the suitcase body, facilitating the drying of clothes during travel and other outings, greatly expanding the functionality of the foldable suitcase. Furthermore, the hook-like design of the supporting structure makes it less likely to fall off, improving the user experience. Attached Figure Description
[0016] Figure 1 This is a perspective view of a foldable suitcase according to an embodiment of the present invention, with the front side wall and top wall concealed. Figure 2 This is a top view of the folding suitcase according to an embodiment of the present invention, with the front side wall and top wall hidden. Figure 3 This is a side view of the foldable suitcase of this invention in its unfolded state according to an embodiment of the invention; Figure 4 This is a side view of the foldable suitcase of this invention in a folded state according to an embodiment of the invention; Figure 5 This is a perspective view of the support structure according to an embodiment of the present invention; Figure 6 This is a side view of the support structure according to an embodiment of the present invention; Figure 7 This is a side view of the support structure in a suspended state according to an embodiment of the present invention. Detailed Implementation
[0017] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention, primarily used to illustrate the embodiments and to explain the operating principles of the embodiments in conjunction with the relevant descriptions in the specification. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.
[0018] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.
[0019] Reference Figures 1-7 This embodiment provides a foldable suitcase 1, including a suitcase body 10. The suitcase body 10 includes four side walls 12, namely a left side wall 12a, a right side wall 12b, a rear side wall 12c, and a front side wall (located on the side opposite to the rear side wall 12c). Figure 1 as well as Figure 2 (The front sidewall is hidden), and it also includes a bottom wall 14 and a top wall (located on the side opposite to the bottom wall 14). Figure 1 as well as Figure 2 (The top wall is concealed). The four side walls 12, namely the left side wall 12a, right side wall 12b, rear side wall 12c, and front side wall, surround the suitcase circumferentially and connect with the bottom wall 14 and the top wall to form a suitcase body 10 with internal storage space. The top wall may be provided with a lid, or the top wall may be designed as a lid in its entirety. The lid can be connected to the rest of the suitcase body 10 by means of a zipper or other device, thereby forming an opening on the suitcase body 10 that can be opened and closed, so as to store clothing or other items into the suitcase through the opening.
[0020] The suitcase body 10 may include a reinforcing structure, such as a reinforcing frame, to enhance the structural strength of the suitcase body 10. Furthermore, a pull rod assembly 16 may be provided on the bottom wall 14, allowing users to easily drag and move the suitcase, reducing the burden of carrying it.
[0021] Reference Figures 1-4 In this embodiment, the suitcase body 10 can, for example, Figure 3 The unfolded state shown is similar to... Figure 4 The luggage body 10 switches between the folded states shown. For example, the luggage body 10 may employ a deformable structure or material to achieve the folding function.
[0022] Reference Figures 1-6 A support structure 3 is installed within the suitcase body 10. The support structure 3 is detachably installed within the suitcase body 10. When the support structure 3 is installed within the suitcase body 10, the suitcase body 10 is supported and stably held in the unfolded state. When the support structure 3 is removed from the suitcase body 10, the suitcase body 10 loses the support of the support structure 3, thus easily folding from the unfolded state to the folded state, saving space. The support structure 3 is designed as a hook structure, so the removed support structure 3 can be used to hang items, such as clothes, etc. Figure 7 As shown, this makes it convenient for users to dry their clothes while traveling or going out, greatly expanding the functionality of the foldable suitcase 1.
[0023] The support structure 3 includes a first support edge 31, a first side edge 33a, a second support edge 32, and a second side edge 33b connected end-to-end. The first support edge 31 and the second support edge 32 are arranged opposite to each other, and the first side edge 33a and the second side edge 33b are arranged opposite to each other. When the support structure 3 is installed into the luggage compartment body 10, the first support edge 31 connects to and supports the rear side wall 12c, such as... Figure 1 and Figure 2 As shown. In this embodiment, the rear sidewall 12c is provided with a connecting strap 22 and a fastener 23. The connecting strap 22 may further be provided with Velcro, so that the first support edge 31 is connected to the rear sidewall 12c through the connecting strap 22 in conjunction with at least one of the fastener 23 and the Velcro. Although this embodiment is described using the connection and support of the rear sidewall 12c by the first support edge 31 as an example, it is easy to understand that the first support edge 31 can connect and support any one of the four sidewalls 12 of the suitcase body 10. Preferably, the first support edge 31 can connect and support both the rear sidewall 12c and the front sidewall.
[0024] The second support edge 32 is confined and abuts against the bottom wall 14. At least one limiting member 21 is provided on the bottom wall 14, which abuts against the second support edge 32 in a direction toward the rear side wall 12c and forms a limiting position. Thus, due to the limiting position, the first support edge 31 can stably support the rear side wall 12c, thereby allowing the suitcase body 10 to be supported and stably maintained in the unfolded state. In this embodiment, two limiting members 21 are provided on the bottom wall 14, located on both sides of the pull rod assembly 16. The limiting members 21 are hook structures that open toward the rear side wall 12c. Furthermore, in some embodiments, the first side edge 33a and the second side edge 33b can support the left side wall 12a and the right side wall 12b, forming a more stable support effect. Although this embodiment is described as an example of the limiting member 21 abutting against the second support edge 32 and forming a limit in the direction of the rear side wall 12c, it is easy to understand that the limiting member 21 can be oriented towards any side wall 12 to cooperate in abutting against the support structure 3.
[0025] Each of the first side 33a and the second side 33b includes an inclined extension 331 and a flat support 332 connected to each other. The angle between the inclined extension 331 and the flat support 332 is an obtuse angle, and the two are rounded at the connection point. The flat support 332 is supported by the bottom wall 14, thereby creating a larger contact area between the support structure 3 and the bottom wall 14. This allows the contact force between the support structure 3 and the bottom wall 14 to be better distributed, improving the service life of the folding suitcase 1 and providing more storage space inside the folding suitcase 1. Here, "the flat support 332 is supported by the bottom wall 14" can mean that the flat support 332 is flat against the bottom wall 14, or it can mean that the flat support 332 is slightly inclined against the bottom wall 14 due to leverage.
[0026] The inclined extension section 331 extends inclinedly from the bottom wall 14 toward the rear side wall 12c. The inclined design of the inclined extension section 331 can avoid the casters and other structures at the connection between the bottom wall 14 and the rear side wall 12c (similarly, the inclined design of the inclined extension section 331 can avoid the pull rod handle and other structures at the connection between the bottom wall 14 and the front side wall); and the inclined extension section 331 forms a stable triangular support structure with the bottom wall 14 and the rear side wall 12c, which provides better support and stress distribution and makes the structure more stable.
[0027] In this embodiment, the inclined extension 331 is also slightly curved toward the bottom wall 14 and the rear side wall 12c, which further makes the interior of the folding suitcase 1 have a larger storage space.
[0028] The second support edge 32 is provided with a plurality of curved portions 321. In this embodiment, the second support edge 32 is shown to have two curved portions 321a and 321b. The second support edge 32 includes a plurality of straight portions 322 separated by the curved portions 321. Figure 5 as well as Figure 6 As shown, the projection of the curved portion 321 onto a plane perpendicular to the straight portion 322 is perpendicular to the bottom wall 14 and also perpendicular to the flat support section 332. Further reference... Figure 1 as well as Figure 2 In this embodiment, two bends 321 are shown for avoiding two tube segments of the pull rod assembly 16. In some other embodiments, at least two bends 321 may be used to avoid reinforcing structures in the luggage body 10; the second support edge 32 may have more or fewer than two bends 321.
[0029] Reference Figures 1-4 as well as Figure 7The curved portion 321 is perpendicular to the flat support section 332, and the angle between the inclined extension section 331 and the flat support section 332 is obtuse, so that the curved portion 321 and the flat support section 332 form a hook-shaped structure C at the end of the inclined extension section 331, thus realizing that the support structure 3 is designed as a hook frame structure. When the support structure 3 is removed from the suitcase body 10, the support structure 3 can be hooked onto a flat surface or crossbar through the hook-shaped structure C, so that it can be used to hang towels, clothes, etc. This solution, while utilizing the curved portion 321 and the flat support section 332 to form the hook-shaped structure C, also cleverly uses the curved portion 321 to avoid the tube section of the pull rod assembly 16 or the reinforcing structure in the suitcase body, so that the support structure 3 can be closer to the bottom wall 14, so that the suitcase body 10 has a larger storage space.
[0030] Support structure 3 is not easily detached from the plane or crossbar. Specifically, Figure 7 The diagram shows that the support structure 3 is hooked to the edge of the plane S via a hook-like structure C, and the curved portion 321 of the support structure 3 has a support point A with the plane S. When the support structure 3 is in a natural hanging state due to the hook-like structure C, that is, when no items are hung on the support structure 3, the center of gravity M of the support structure 3 and the support point A are located on the same vertical plane H. When clothes or other items are hung at the bottom of the support structure 3, that is, when they are hung on the first support edge 31 of the support structure 3, due to the gravity G of the hung items, the center of gravity M' of the hung items and the support structure 3 as a whole shifts towards the first support edge 31 of the support structure 3, such as... Figure 7 The diagram shows the center of gravity M' shifting to the left of the vertical plane H. At this point, the support structure 3 will rotate along the R direction, which further secures the hook structure C, until it regains balance. In other words, the increased weight of the hanging item causes the hook structure C to become more secure, and this characteristic of the support structure 3 makes it less likely to fall off the plane or the horizontal bar.
[0031] In this embodiment, the foldable suitcase 1 has a support structure 3 that allows the suitcase to be opened when installed inside the suitcase body 10. When the support structure 3 is removed, the suitcase can be folded and compressed to save space. After the support structure 3 is removed, it is designed as a hook frame and can be placed on a flat surface or a horizontal bar for hanging towels, clothes, and other items, making it convenient for users to dry clothes while traveling or away from home, greatly expanding the functionality of the foldable suitcase 1. Furthermore, the hook-shaped structure C of the support structure 3 makes it less likely to fall off, improving the user experience.
[0032] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, all of which shall be within the scope of protection of the invention.
Claims
1. A support structure for a folding suitcase, characterized in that, The support structure includes a first support edge, a first side edge, a second support edge, and a second side edge connected end to end. The first support edge and the second support edge are arranged opposite to each other, and the first side edge and the second side edge are arranged opposite to each other. The support structure is designed to be detachably installed in the suitcase body. The first support edge is used to connect to and support the side wall of the suitcase body, and the second support edge is used to limit and abut against the bottom wall of the suitcase body, so that the suitcase body can be supported by the support structure and kept in the unfolded state. When the support structure is removed from the suitcase body, the suitcase body can be folded from the unfolded state to the folded state. The support structure is designed as a hook frame structure, so that the support structure can be used to hang items after being removed from the suitcase body.
2. The support structure for the folding suitcase according to claim 1, characterized in that: Each of the first side and the second side includes a flat support section and an inclined extension section connected to each other. The angle between the inclined extension section and the flat support section is an obtuse angle. The flat support section is used to support the bottom wall, and the inclined extension section is used to form a triangular support structure with the bottom wall and the side wall.
3. The support structure for the folding suitcase according to claim 2, characterized in that: The second support edge is provided with a plurality of curved portions and a plurality of straight portions separated by the curved portions; the curved portions and the flat support section form a hook-like structure at the end of the inclined extension section, thereby realizing that the support structure is designed as a hook frame structure.
4. The support structure for the folding suitcase according to claim 3, characterized in that: The projection of the curved portion onto a plane perpendicular to the straight portion is perpendicular to the flat support section, and the curved portion is used to avoid the tube section of the pull rod assembly or the reinforcing structure in the suitcase body.
5. The support structure for the folding suitcase according to claim 2, characterized in that: The inclined extension bends toward the bottom wall and the side wall.
6. A folding suitcase, comprising a suitcase body, the suitcase body including four side walls, a bottom wall, and a top wall; the suitcase body is capable of switching between an unfolded state and a folded state; characterized in that, The luggage body is detachably installed with a support structure as described in any one of claims 1-5; when the support structure is installed in the luggage body, the first support side is connected to and supports the side wall, and the second support side is limited and abuts against the bottom wall.
7. The folding suitcase according to claim 6, characterized in that: The four sidewalls include a left sidewall, a right sidewall, a rear sidewall, and a front sidewall. The first supporting edge connects to and supports the rear sidewall or the front sidewall. The first sidewall and the second sidewall provide support for the left sidewall and the right sidewall.
8. The folding suitcase according to claim 6, characterized in that: At least one limiting member is provided on the bottom wall, the limiting member abutting against the second supporting edge in a direction toward the side wall to form a limiting position; and / or The sidewall is provided with a connecting structure; the connecting structure includes a connecting strap, and at least one of a fastener and a Velcro strap, and the first support edge is connected to the sidewall through the connecting structure.
9. The folding suitcase according to claim 6, characterized in that: The second support edge is provided with multiple bends, which are used to avoid the tube segments of the pull rod assembly or the reinforcing structures in the suitcase body.
10. The folding suitcase according to claim 6, characterized in that: Each of the first side and the second side includes a flat support section and an inclined extension section connected to each other. The flat support section is supported by the bottom wall, and the inclined extension section forms a triangular support structure with the bottom wall and the side wall.