A luggage case having a bag frame
By combining a plastic case body with an aluminum alloy frame, the problem of bulkiness in existing bags has been solved, achieving a lighter weight and improved user comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIAXING HONGSHUN PACKAGING MATERIALS CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-06-05
AI Technical Summary
Existing bags are made of aluminum, which makes them too bulky and detrimental to the user experience.
The enclosure is made of plastic material and is fitted with an aluminum alloy frame. The enclosure and frame are designed with rectangular grooves made of metal material, with reinforcing ribs inside the grooves and non-metallic coverings on the outside, which ensures load-bearing strength while reducing weight.
While maintaining load-bearing strength, the weight of the bag has been reduced, improving the user experience, avoiding the discomfort of touching the metal frame when pulling the zipper in winter, and enhancing the aesthetics.
Smart Images

Figure CN224320327U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bag technology, and in particular to a bag with a frame. Background Technology
[0002] With the improvement of people's living standards and the continuous improvement of transportation systems, people's exchanges between different regions are becoming more and more frequent. When traveling long or short distances, it is often necessary to carry some daily necessities with you, so bags are frequently used.
[0003] The bags and cases produced by existing manufacturers are usually aluminum cases. The entire body of the aluminum case is made of metal, which makes it heavy and cumbersome to use, affecting people's user experience.
[0004] For example, in the utility model patent with publication number CN220571691U, the box body is made of aluminum material. Although this improves the overall strength of the box body, the use of aluminum material makes the entire box too bulky and not conducive to people's daily use. Summary of the Invention
[0005] In view of this, the present invention provides a bag with a frame to solve the above problems.
[0006] A bag with a frame includes at least two interlocking case bodies, at least one frame assembly disposed between the two case bodies, and a zipper disposed on the frame assembly. The frame assembly is made of metal, and each frame assembly includes a first frame and a second frame. The first frame includes a first receiving groove, a first cover portion disposed on one outer side wall of the first receiving groove, and a first abutment portion disposed on the other outer side wall of the first receiving groove. The first cover portion and the first abutment portion are respectively located on opposite sides of the first receiving groove. The second frame includes a second receiving groove, a second cover portion disposed on one outer side wall of the second receiving groove, and a second abutment portion disposed on the other outer side wall of the second receiving groove. The second cover portion and the second abutment portion are respectively located on opposite sides of the second receiving groove. The first receiving groove and the first cover portion form a semi-enclosed space for placing one of the case bodies, and the second receiving groove and the second cover portion form a semi-enclosed space for placing the other case body. The first and second receiving grooves are provided with multiple first and second reinforcing ribs, respectively, to improve their load-bearing strength. The zipper includes two zipper straps, a first zipper strap and a second zipper strap, respectively located on the first and second sidewalls, and a pull tab between the first and second zipper straps. The first and second zipper straps are fixed to the inner sidewalls of the first and second receiving grooves, respectively.
[0007] Furthermore, the two boxes are arranged opposite each other and are fastened together to form a sealed accommodating space for placing items.
[0008] Furthermore, the frame assembly is disposed at the connection between the two boxes to improve the strength of the joint between the two boxes.
[0009] Furthermore, the first receiving groove and the first abutment are integrally formed by simultaneous extrusion of metal material.
[0010] Furthermore, the first reinforcing rib is disposed on the inner side wall of the first receiving groove on the side away from the first abutment.
[0011] Furthermore, the first cover is an L-shaped part, which is disposed on the outer side wall of the first receiving groove opening, and the first cover is made of an elastic material.
[0012] Furthermore, the second receiving groove and the second abutment are simultaneously extruded and integrally formed by metal material.
[0013] Furthermore, the second reinforcing rib is disposed on the inner side wall of the second receiving groove on the side away from the second abutment.
[0014] Furthermore, the second cover is an L-shaped part, which is disposed on the outer side wall of the second receiving groove opening, and is made of an elastic material.
[0015] Furthermore, the bag with the frame is used in conjunction with a zipper, which is glued to the first receiving groove and the second receiving groove respectively.
[0016] Compared with existing technologies, the bag with a frame provided by this utility model, through the combination of a box body made of plastic material and a frame assembly made of metal materials such as aluminum alloy, can reduce the weight of the bag while ensuring its load-bearing strength, making it easier for people to move. Furthermore, by designing the first and second receiving grooves supporting the frame assembly into rectangular groove shapes and making them of metal material, and by providing multiple first and second reinforcing ribs within them to support and abut against the first and second receiving grooves, the box body can have a greater load-bearing capacity when subjected to forces along the arrangement direction of the first receiving groove and the first covering part, thereby improving the load-bearing strength of the bag. Meanwhile, the first and second covers made of non-metallic materials are respectively provided on the outside of the first and second accommodating slots. These covers can not only cover the seams where the box body connects to the first and second accommodating slots, thus improving aesthetics, but also allow the color to be changed according to actual needs. Furthermore, they prevent the user's hands from directly contacting the metal, avoiding discomfort from touching the metal frame when pulling the zipper in winter, greatly improving the user experience. Attached Figure Description
[0017] Figure 1 This is a structural diagram of a bag with a frame, provided by this utility model.
[0018] Figure 2 for Figure 1 A cross-sectional structural diagram of the frame assembly of a bag with a frame. Detailed Implementation
[0019] The specific embodiments of this utility model are described in further detail below. It should be understood that the description of the embodiments of this utility model herein is not intended to limit the scope of protection of this utility model.
[0020] like Figures 1 to 2The diagram shows a structural schematic of a framed bag according to the present invention. The framed bag includes at least two interlocking case bodies 10, at least one frame assembly 20 disposed between the two case bodies 10, and a zipper 30 disposed on the frame assembly 20. The framed bag also includes other functional modules, such as a pull rod and roller assembly for moving the case bodies, etc., which are technologies known to those skilled in the art and will not be described in detail here.
[0021] The two boxes 10 can be fastened together to form a sealed storage space for placing items. The boxes 10 are made of plastic, which reduces the overall weight of the bag compared to traditional metal boxes, making them easier to move and transport. It is easy to see that the boxes 10 also have a pull rod groove for holding a pull rod, and a roller groove on the bottom for holding wheels, respectively for accommodating the pull rod assembly and the rollers. The number of boxes 10 can be set according to actual needs, and there can be multiple boxes, correspondingly changing the number of frame groups 20. The number of frame groups 20 is one less than the number of boxes 10 to ensure that each pair of adjacent boxes 10 can be fastened together. In this embodiment, there are two boxes 10. Each box 10 has an inner frame with an opening, and the openings of adjacent boxes 10 are positioned opposite each other.
[0022] The frame group 20 is disposed at the connection between two adjacent boxes 10 to improve the strength of the joint between the two adjacent boxes 10. The number of frame groups 20 is determined by the number of boxes 10. In this embodiment, the number of frame groups 20 is one.
[0023] Each of the frame assemblies 20 includes a first frame 21 fixed to one of the housings 10 and a second frame 22 coupled to the first frame 21 and fixed to the other housing 10. The frame assemblies 20 are made of metal materials such as aluminum alloy, thus providing higher strength. The frame assemblies 20 may have a rectangular frame structure and conform to the edge shape of the housing 10 to facilitate insertion into the housing 10.
[0024] The first frame 21 includes a first receiving groove 211 for inserting the zipper 30, a first covering portion 212 disposed on an outer side wall of the first receiving groove 211, and a first abutment 213 disposed on an outer side wall of the first receiving groove 211. The first receiving groove 211 and the first abutment 213 can be integrally formed by extruding a metal material simultaneously, such as aluminum alloy or magnesium-aluminum alloy.
[0025] The first receiving groove 211 is a rectangular groove. The opening direction of the first receiving groove 211 is perpendicular to the arrangement direction of the first receiving groove 211 and the first covering part 212. The box body 10 can be fixed to the outer wall of the first receiving groove 211 by adhesive bonding. Compared with the utility model patent application document with publication number CN221690310U, which uses only a single supporting plate to support the box shell, the first receiving groove 211 adopts a rectangular groove design and cooperates with the first reinforcing rib 2111 described below, thereby giving the first frame 21 higher load-bearing strength. Its specific working principle will be described below in conjunction with the first reinforcing rib 2111.
[0026] The inner wall of the first receiving groove 211 on the side away from the first abutment 213 is also provided with a plurality of first reinforcing ribs 2111, and the plurality of first reinforcing ribs 2111 are evenly distributed at equal intervals.
[0027] The first reinforcing rib 2111 can abut against the two inner sidewalls of the first receiving groove 211 when the housing 10 is subjected to an external force along the arrangement direction of the first receiving groove 211 and the first covering part 212, causing the two inner sidewalls of the first receiving groove 211 to deform and move closer together, thereby supporting the first receiving groove 211 and improving the load-bearing strength of the first frame 21. The number of the first reinforcing ribs 2111 can be set according to actual needs. In this embodiment, there are two first reinforcing ribs 2111. The first reinforcing ribs 2111 and the first receiving groove 211 are integrally formed by simultaneous extrusion of metal material.
[0028] The first cover portion 212 can be an L-shaped component. The first cover portion 212 is connected to the outer wall of the first receiving groove 211. Specifically, the first cover portion 212 is connected to the outer wall of the first receiving groove 211 near the first reinforcing rib 2111. The first cover portion 212 can be made of non-metallic materials, such as rubber or plastic. Compared to metallic materials, non-metallic materials like rubber and plastic can better enhance the user experience. Specifically, due to the good thermal conductivity of metallic materials, touching the first cover portion 212 in cold weather will feel cold, while rubber and other plastics will feel warm and comfortable to the touch, thus improving the user experience. Furthermore, the first cover portion 212 is an accessory and can be different colors. During production, different colors of the first cover portion 212 can be changed according to actual production needs to improve the overall aesthetics of the bag. The second cover portion 212 can be connected and fixed to the first receiving groove 211 by adhesive bonding or secondary injection molding.
[0029] It is conceivable that a receiving groove is formed between the first covering part 212 and the first receiving groove 211, and the opening size of the receiving groove is equal to or greater than the shell edge thickness of the box 10, so as to facilitate the insertion of the box 10. In use, glue can be applied to the side wall of the box 10 first, then it can be placed on the outer side wall of the first receiving groove 211, and the box 10 can be pushed toward the receiving groove until it abuts against the first covering part 212, thereby fixing it to the first receiving groove 211.
[0030] The first abutment 213 and the first cover 212 are respectively connected to the two opposite outer side walls of the first receiving groove 211. The first abutment 213 extends beyond the opening end of the first receiving groove 211 in a direction perpendicular to the arrangement direction of the first receiving groove 211 and the first cover 212 to form a stepped portion. This stepped portion is used to couple with the second abutment 223 described below to achieve mutual overlap between the two, thereby achieving relative fixation in position.
[0031] The second frame 22 has essentially the same structure and function as the first frame 21, and its structure will not be described in detail here. However, for the sake of clarity, only the components of the second frame 22 are listed. Specifically, the second frame 22 includes a second receiving groove 221, a second covering portion 222 disposed on the outer wall of one side of the second receiving groove 221, and a second abutment 223 disposed on the outer wall of the other side of the second receiving groove 221. A plurality of second reinforcing ribs 2211 are also provided on the inner wall of the second receiving groove 221 on the side away from the second abutment 223.
[0032] It should be noted that, in the arrangement direction perpendicular to the first receiving groove 211 and the first covering portion 212, the second abutment 223 is spaced apart from the opening end of the second receiving groove 221, thereby forming a coupling step portion. This coupling step portion overlaps and abuts against the step portion formed by the first abutment 213.
[0033] The zipper 30 is used to connect the first frame 21 and the second frame 22. It includes two zipper straps 31 and 32 located on the first frame 21 and the second frame 22 respectively, and a zipper buckle 33 located between the first zipper strap 31 and the second zipper strap 32. The zipper 30 is a fastener that allows two rows of zipper teeth to engage or disengage via a sliding member. It should be considered prior art and will not be described in detail here.
[0034] The first zipper tape 31 and the second zipper pocket 32 can be fixed to the inner walls of the first receiving groove 211 and the second receiving groove 221 respectively by adhesive bonding. Adhesive bonding refers to a method of firmly connecting the same or different materials with adhesive properties, which should be well known to those skilled in the art. Here, the connection method between the first zipper tape 31 and the first receiving groove 211 is used as an example. Specifically, when it is necessary to fix the first zipper tape 31 in the first receiving groove 211, glue can be applied to the surface of the first zipper tape 31 first, and then it can be placed on the other inner wall of the first receiving groove 211 away from the first reinforcing rib 2111, and then it can be fixed to the inner wall of the first receiving groove 211.
[0035] The buckle 33 is used to control the connection and separation between the first zipper tape 31 and the second zipper tape 32. When the buckle 33 is closed, the first zipper tape 31 and the second zipper tape 32 are fastened to each other, and at this time the first frame 21 and the second frame 22 are connected and fastened.
[0036] Compared with the prior art, the bag with a frame provided by this utility model, by using a plastic body 10 and a frame assembly 20 made of metal materials such as aluminum alloy, can reduce the weight of the bag while ensuring its load-bearing strength, making it easier for people to move. Furthermore, by designing the first receiving groove 211 and the second receiving groove 221 that support the frame assembly 20 as rectangular grooves made of metal, and by providing multiple first reinforcing ribs 2111 and second reinforcing ribs 2211 therein to abut and support the first receiving groove 211 and the second receiving groove 221, the body 10 can have a greater load-bearing capacity when subjected to forces along the arrangement direction of the first receiving groove 211 and the first covering part 212, thereby improving the load-bearing strength of the bag. Meanwhile, the first covering part 212 and the second covering part 222, made of non-metallic material, are respectively provided on the outer side of the first receiving groove 211 and the second receiving groove 221. They can not only cover the seam where the box body 10 is connected to the first receiving groove 211 and the second receiving groove 221, thus improving the aesthetics, but also change the color according to actual needs. In addition, they can prevent the user's hands from directly contacting the metal. In winter, they can avoid the discomfort of touching the metal frame when pulling the zipper 30, which greatly improves the user experience.
[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions or improvements within the spirit of the present utility model are covered within the scope of the claims of the present utility model.
Claims
1. A bag with a frame, characterized in that: The framed bag includes at least two interlocking case bodies, at least one frame assembly between the two case bodies, and a zipper on the frame assembly. The frame assembly is made of metal. Each frame assembly includes a first frame and a second frame. The first frame includes a first receiving groove, a first cover on one side of the outer wall of the first receiving groove, and a first abutment on the other side of the outer wall of the first receiving groove. The first cover and the first abutment are located on opposite sides of the first receiving groove. The second frame includes a second receiving groove, a second cover on one side of the outer wall of the second receiving groove, and a second abutment on the other side of the outer wall of the second receiving groove. The second covering and the second abutment are respectively located on both sides of the second receiving groove. The first receiving groove and the first covering form a semi-enclosed space for placing the box body. The second receiving groove and the second covering form a semi-enclosed space for placing another box body. The openings of the first receiving groove and the second receiving groove are provided with a plurality of first reinforcing ribs and second reinforcing ribs respectively used to improve the load-bearing strength of the first receiving groove and the second receiving groove. The zipper includes two first zipper straps and a second zipper strap respectively located on the first frame and the second frame, and a pull buckle located between the first zipper strap and the second zipper strap. The first zipper strap and the second zipper strap are respectively fixed to the inner sidewalls of the first receiving groove and the second receiving groove.
2. The bag with a frame as described in claim 1, characterized in that: The two boxes are arranged opposite each other and are fastened together to form a sealed storage space for placing items.
3. The bag with a frame as described in claim 1, characterized in that: The frame assembly is disposed at the connection between the two boxes to improve the connection strength at the joint of the two boxes.
4. The bag with a frame as described in claim 1, characterized in that: The first receiving groove and the first abutment are integrally formed by extruding metal material simultaneously.
5. The bag with a frame as described in claim 1, characterized in that: The first reinforcing rib is disposed on the inner side wall of the first receiving groove on the side away from the first abutment.
6. The bag with a frame as described in claim 1, characterized in that: The first cover is an L-shaped part, which is disposed on the outer side wall of the first receiving groove opening, and is made of elastic material.
7. The bag with a frame as described in claim 1, characterized in that: The second receiving groove and the second abutment are integrally formed by extruding metal material simultaneously.
8. The bag with a frame as described in claim 1, characterized in that: The second reinforcing rib is disposed on the inner side wall of the second receiving groove on the side away from the second abutment.
9. The bag with a frame as described in claim 1, characterized in that: The second cover is an L-shaped part, which is disposed on the outer side wall of the second receiving groove opening, and is made of elastic material.
10. The bag with a frame as described in claim 1, characterized in that: The first zipper tape and the second zipper tape are respectively fixed to the first receiving groove and the second receiving groove by adhesive.