Extrusion frame beneficial to improving strength of bags and suitcases

By using an enhanced extruded frame in zippered bags, the strength of the bags is enhanced by zipper fixing grooves and bag body fixing grooves, and the smooth zipper and convenient installation of the inner layer are ensured by the abutment protrusion and inner fixing strip. This solves the problem of insufficient overall strength of the bags and achieves more efficient sewing and aesthetic results.

CN223682117UActive Publication Date: 2025-12-19MERIT TECH (FU JIAN) CO LTD
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Patent Information

Application Number
CN202520293358.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Priority Date
2025-01-20
Filing Date
2025-02-24
Publication Date
2025-12-19
Estimated Expiration
2035-02-24

AI Technical Summary

Technical Problem

The existing zippered bags are not strong enough overall, especially when the two sides of the bag are connected by fabric zippers, which makes the overall strength of the bag insufficient.

Method used

An extruded frame that improves the strength of bags is adopted. Zipper fixing grooves and bag fixing grooves are set on the body of the extruded frame, and a top protrusion is formed at the lower end to enhance the strength of one side and the whole. At the same time, zipper fixing strips and inner fixing strips are used to fix the zipper and inner layer, ensuring smooth zipper and convenient installation of inner layer.

Benefits of technology

The strength of one side and the overall strength of the bag have been enhanced, the zipper slides smoothly, the inner lining is easy to install and clean, the sewing efficiency has been improved, and the aesthetics and practicality of the bag have been enhanced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of bags and suitcases, and provides an extrusion frame favorable for improving the strength of the bags and suitcases, which is used for improving the strength of the bags and suitcases and comprises an extrusion frame body, a zipper fixing groove with an opening facing the outer side and used for fixing an external zipper and a box body fixing groove with an opening facing the inner side and used for fixing an external box body are formed in the upper end of the extrusion frame body, and a zipper fixing strip used for fixing the external zipper is clamped in the zipper fixing groove in an anti-disengaging mode. The zipper fixing groove and the box body fixing groove are arranged side by side up and down or inside and outside, the lower end of the extrusion frame body protrudes outwards to form an abutting protrusion, and a movable space is formed between the upper surface of the abutting protrusion and the outer side face of the upper end of the extrusion frame body; a lining fixing groove used for fixing an outer lining layer is formed in the inner side or the outer side of the lower end of the extrusion frame body, and a lining fixing strip used for fixing the outer lining layer is clamped in the lining fixing groove in an anti-disengaging mode.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of luggage, especially to an extrusion frame which is beneficial to improve the strength of the luggage. BACKGROUND

[0002] The two half-open box bodies of the zipper luggage are opened and closed by the zipper. The conventional zipper luggage is directly sewn on the box body by the zipper, which can damage the strength of the box body, and the zipper itself is a cloth material, so the strength of the whole luggage is relatively poor.

[0003] In order to solve the above problems, the extrusion frame appears in the market, which fixes the zipper and the box body together by the extrusion frame, and uses the strength of the extrusion frame itself to enhance the strength of the box body. Although the strength of the single side of the box body is increased, the two sides of the box body are still connected and pulled by the cloth zipper, and the overall strength of the luggage still needs to be further strengthened.

[0004] In order to solve the above problems, the present case is generated. UTILITY MODEL CONTENTS

[0005] Therefore, in view of the above problems, the utility model provides an extrusion frame which is beneficial to improve the strength of the luggage.

[0006] In order to solve the above technical problems, the utility model adopts the following solution: an extrusion frame which is beneficial to improve the strength of the luggage, comprising an extrusion frame body, characterized in that: the upper end of the extrusion frame body is provided with a zipper fixing groove with an opening facing the outside for fixing the external zipper and a box body fixing groove with an opening facing the inside for fixing the external box body, the zipper fixing groove is prevented from being separated and combined with a zipper fixing strip for fixing the external zipper, the zipper fixing groove and the box body fixing groove are arranged in parallel or in series, the lower end of the extrusion frame body is protruded outward to form a butt protrusion which can eliminate the distance with the extrusion frame on the other side of the box body, the upper surface of the butt protrusion and the outer side of the upper end of the extrusion frame body form a moving space for the zipper head to slide, the inner side or the outer side of the lower end of the extrusion frame body is provided with an inner lining fixing groove for fixing the external inner lining layer, and the inner lining fixing groove is prevented from being separated and combined with an inner lining fixing strip for fixing the external inner lining layer.

[0007] Further improvement: the fixed end of the inner lining fixing strip is fixedly provided with a disassembly zipper for disassembling and assembling the inner lining layer.

[0008] Further improvement: the two side walls of the zipper fixing groove are respectively provided with a first limiting protrusion, and the two sides of the zipper fixing strip are respectively provided with a second limiting protrusion which can prevent the first limiting protrusion from being separated.

[0009] Further improvement is that the inner fixing groove is arranged on the lower end of the extrusion frame body in the opposite direction of up and down, or in the direction of inside and outside, or in the direction of forming an acute angle with the direction of inside and outside.

[0010] Further improvement is that the two side walls of the inner fixing groove are respectively provided with third limiting protrusions, and the two sides of the inner fixing strip are respectively provided with fourth limiting protrusions which abut against the third limiting protrusions to prevent disengagement.

[0011] Further improvement is that the inner wall of the groove of the inner fixing groove is provided with an inwardly inclined inclined surface, and the lower end of the inner fixing strip is inwardly inclined and abuts against the inclined surface.

[0012] Further improvement is that the lower groove wall of the box body fixing groove extends inwardly to form an extension for increasing the abutting area with the external box body.

[0013] Further improvement is that the outer side surface of the abutting protrusion is provided with a positioning protrusion or a positioning groove.

[0014] Further improvement is that the zipper fixing strip is made of soft plastic material, hard plastic material or metal material.

[0015] Further improvement is that the inner fixing strip is made of soft plastic material, hard plastic material or metal material.

[0016] Further improvement is that the abutting protrusion is internally provided with a reinforcing structure which is in the shape of a Chinese character "kou", a Chinese character "ri" or a Chinese character "mu".

[0017] Further improvement is that the inner fixing groove penetrates the reinforcing structure in the direction of inside and outside to form two or three anti-disengagement grooves for adjusting the insertion depth of the inner fixing strip.

[0018] By adopting the foregoing technical scheme, the utility model has the advantages of:

[0019] In the case, the outer side of the lower end of the extrusion frame body is outwardly protruded to form an abutting protrusion which abuts against the extrusion frame on the other side of the box body to eliminate the spacing, so as to limit the relative movement of the two box bodies, thereby strengthening the strength of the single box body and increasing the overall strength of the luggage. The space above the abutting protrusion is formed as a movable space for the zipper head to move, which is beneficial to the smooth sliding of the zipper. When the two box bodies are buckled, the abutting protrusions on the two extrusion frames abut against each other, and the movable space is always maintained. The zipper in the movable space will not be squeezed no matter whether the luggage is upright or upside down, and the zipper can always be easily opened and closed.

[0020] Further beneficial effects are: the zipper of the closed box body is clamped and fixed on the extrusion frame body through the zipper fixing strip, the zipper and the zipper fixing strip can be automatically stitched through automatic equipment, the stitching efficiency is improved, the labor cost is saved, and the assembly mode between the zipper fixing strip and the extrusion frame is more efficient and convenient than the mode of stitching the zipper on the box body.

[0021] Further beneficial effects are: the inner layer is clamped and fixed on the extrusion frame body through the inner layer fixing strip, the inner layer and the inner layer fixing strip can be automatically stitched through automatic equipment, the operation is convenient, the stitching efficiency is high, and subsequent clamping with the extrusion frame can also be efficiently and conveniently assembled.

[0022] Further beneficial effects are: the inner layer can also be indirectly stitched and connected through disassembly of the zipper and the inner layer fixing strip, which is conducive to disassembly and cleaning of the inner layer, and the inner layer can be disassembled for assembly when the inner layer is assembled, so that the inner layer fixing strip assembly operation is convenient and the assembly efficiency is improved.

[0023] Further beneficial effects are: the inner layer fixing groove can be arranged on the inner side of the extrusion frame body or on the outer side, and compared with the inner side, the outer side can shield the extrusion frame on the inner side, improving the neatness and beauty of the box body.

[0024] Further beneficial effects are: the direction of the inner layer fixing groove can be selected according to actual conditions, which is conducive to rapid installation of the inner layer.

[0025] Further beneficial effects are: the positioning protrusion or the positioning groove arranged on the outer side of the abutting protrusion is conducive to positioning the box body clamping position when the box body is clamped, further facilitating sliding of the zipper head. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structure diagram of an extrusion frame which is beneficial to improve the strength of the luggage according to an embodiment of the present application.

[0027] Figure 2 is a structure diagram of an extrusion frame which is beneficial to improve the strength of the luggage according to an embodiment of the present application.

[0028] Figure 3 is a structure diagram of an extrusion frame which is beneficial to improve the strength of the luggage according to an embodiment of the present application.

[0029] Figure 4 is a structure diagram of an extrusion frame which is beneficial to improve the strength of the luggage according to an embodiment of the present application.

[0030] Figure 5 is a structure diagram of an extrusion frame which is beneficial to improve the strength of the luggage according to an embodiment of the present application.

[0031] Figure 6It is the structural schematic view of the extrusion frame beneficial to improving the strength of the luggage of the embodiment of the utility model.

[0032] Figure 7 It is the structural schematic view of the extrusion frame beneficial to improving the strength of the luggage of the embodiment of the utility model.

[0033] Figure 8 It is the structural schematic view of the extrusive frame beneficial to improving the strength of the luggage of the embodiment of the utility model.

[0034] Figure 9 It is the structural schematic view of the extrusive frame beneficial to improving the strength of the luggage of the embodiment of the utility model.

[0035] Figure 10 It is the structural schematic view of the extrusive frame beneficial to improving the strength of the luggage of the embodiment of the utility model. DETAILED DESCRIPTION

[0036] The utility model is further explained in connection with the drawings and specific embodiments.

[0037] Reference Figures 1 to 10 The utility model discloses an extrusion frame beneficial to improving the strength of the luggage, including extrusion frame body 10, extrusion frame body 10 is hard plastic material, the upper end of extrusion frame body 10 is seted up and is opened to the outside for the zipper fixed groove 11 and the box fixed groove 12 of the opening towards inside for the glueing fixed external box of the external zipper, the zipper fixed groove 11 and box fixed groove 12 are arranged side by side or are arranged side by side inside and outside. The lower groove wall of box fixed groove 12 has the extension 13 that forms to increase and is glued to the area of the extension of the external box with the inside, to increase the area of extrusion frame body 10 and box glueing, improves the glueing strength. The extrusion frame body 10 lower end is protruded and forms the abutting protrusion 14 of the abutting protrusion 14 of the extrusion frame body 10 of being set up on the box of another side and mutually abutting, the abutting protrusion 14 upper surface and the extrusion frame body 10 upper end outside face between the formation of the movable space 15 of the zipper head of external zipper smooth pull. The outside of abutting protrusion 14 is seted up and is opened to the positioning groove 17 or the positioning protrusion 16 of the extrusion frame body 10 on another side box with the cooperation positioning of the positioning protrusion 16 or the positioning groove 17 of the extrusion frame body 10 on another side box, to align both sides zipper, the positioning protrusion 16 or the positioning groove 17 of the zipper head sliding.

[0038] Further, the external zipper is fixed in the zipper fixing groove 11 in a clamping manner. The zipper fixing groove 11 is clamped and fixed with a zipper fixing strip 19 for fixing the external zipper. The slot width of the zipper fixing groove 11 is less than the groove bottom width. The clamping end width of the zipper fixing strip 19 is greater than the fixed end width. The slot of the zipper fixing groove 11 limits the clamping end of the zipper fixing strip 19 from being separated from the zipper fixing groove 11. The zipper fixing strip 19 is made of soft plastic material or hard plastic material or metal material, and is preferably made of soft plastic material. First limiting protrusions 20 are respectively protruded on the two side walls of the zipper fixing groove 11. Second limiting protrusions 21 are respectively arranged on the two sides of the zipper fixing strip 19 to prevent the zipper fixing strip 19 from being separated from the zipper fixing groove 11.

[0039] The zipper can be directly glued on the zipper fixing strip 19 or can be sewn and fixed on the zipper fixing strip 19. When the zipper is connected by sewing, the zipper can be directly sewn and fixed with the zipper fixing strip 19 made of soft plastic material. The zipper fixing strip 19 made of hard plastic material can be directly penetrated by the sewing needle, or a sewing hole can be formed on the zipper fixing strip 19 for the sewing needle to pass through. When the zipper fixing strip 19 is made of metal material, a sewing hole is formed on the metal zipper fixing strip 19 for the sewing needle to pass through.

[0040] Further, the extrusion frame body 10 is provided with an inner lining fixing groove 22 at the lower end for fixing the external inner lining layer. The inner lining fixing groove 22 is clamped with an inner lining fixing strip 23 for fixing the external inner lining layer. The slot width of the inner lining fixing groove 22 is less than the groove bottom width. The clamping end width of the inner lining fixing strip 23 is greater than the fixed end width. The slot of the inner lining fixing groove 22 limits the clamping end of the inner lining fixing strip 23 from being separated from the inner lining fixing groove 22. The inner lining fixing groove 22 is formed on the outer side or the inner side of the lower end of the extrusion frame body 10, and is preferably formed on the outer side, which is conducive to covering the inner side of the extrusion frame body 10 with the inner lining layer and improving the appearance of the bag interior. Third limiting protrusions 24 are respectively protruded on the two side walls of the inner lining fixing groove 22. Fourth limiting protrusions 25 are respectively protruded on the two sides of the clamping end of the inner lining fixing strip 23 to prevent the inner lining fixing strip 23 from being separated from the inner lining fixing groove 22.

[0041] The inner lining fixing groove 22 is formed on the lower end of the extrusion frame body 10 in the upward direction (as shown in Figure 1 , Figure 2 The inner lining fixing groove 22 is formed on the lower end of the extrusion frame body 10 in the upward direction (as shown in Figure 5 , Figure 3 , Figure 4 ).

[0042] The inner fixed strip 23 is made of soft plastic material or hard plastic material or metal material. The fixing mode of the inner layer and the inner fixed strip 23 can refer to the fixing mode of the zipper and the zipper fixed strip 19.

[0043] Further, the inner wall of the slot of the inner fixed slot 22 is provided with an inwardly inclined inclined surface 26, and the lower end of the inner fixed strip 23 is inwardly inclined and attached to the inclined surface 26. The fixed end of the inner fixed strip 23 is inwardly inclined and attached to the inclined surface, which is beneficial to the transition of the inner layer, so that the inner layer can be comfortably attached to the inner wall of the box body.

[0044] Further, the outer inner layer can be directly and non-detachably fixed on the inner fixed strip 23, or can be detachably fixed on the inner fixed strip 23 by using a detachable zipper. The fixed end of the inner fixed strip 23 is provided with a detachable zipper 27 for detaching and assembling the inner layer, and one side of the detachable zipper 27 is glued or sewn to the inner fixed strip 23, and the other side is glued or sewn to the inner layer.

[0045] Further, the inner fixed slot 22 is provided with a reinforcing structure 28 inside the top protrusion 14, and the reinforcing structure 28 is in the shape of a "mouth" or a "day" or a "eye". One of the inner fixed slots 22 penetrates the reinforcing structure 28 in the inner and outer directions to form two or three anti-disengagement grooves 29 (as shown in Figures 8-10

[0046] A combination step of an extrusion frame for improving the strength of the box: the zipper is fixed on the zipper fixed strip 19, the inner layer is fixed on the inner fixed strip 23, then the zipper fixed slot 11 and the inner fixed slot 22 of the extrusion frame body 10 are penetrated, and then the extrusion frame body 10 is hot-bent to be consistent with the shape of the opening of the box body, and finally the extrusion frame body 10 is sleeved on the box body and glued.

[0047] The basic principle and main features of the utility model and its advantages are shown and described above, and those skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed, and the scope of protection of the utility model is defined by the appended claims and their equivalents.​

Claims

1. An extruded frame to facilitate increased strength of a luggage piece, comprising an extruded frame body, characterized by: The upper end of the extrusion frame body is provided with a zipper fixing groove opening outward for fixing the external zipper and a box body fixing groove opening inward for fixing the external box body, the zipper fixing groove is provided with a zipper fixing strip for fixing the external zipper, the zipper fixing groove and the box body fixing groove are arranged in parallel or side by side, the lower end of the extrusion frame body is provided with a stop protrusion protruding outward and abutting against the other side box body to eliminate the spacing, the upper surface of the stop protrusion and the outer side surface of the extrusion frame body form a moving space for the zipper head, the inner side or the outer side of the lower end of the extrusion frame body is provided with a lining fixing groove for fixing the external lining layer, and the lining fixing groove is provided with a lining fixing strip for fixing the external lining layer.

2. The extruded frame of claim 1, wherein: The fixed end of the lining fixing strip is provided with a disassembly zipper for disassembling the lining layer.

3. The extruded frame of claim 1, wherein: The two side walls of the zipper fixing groove are respectively provided with a first limiting protrusion, and the two sides of the zipper fixing strip are respectively provided with a second limiting protrusion abutting against the first limiting protrusion to prevent disengagement.

4. The extruded frame of claim 1, wherein: The lining fixing groove is arranged on the lower end of the extrusion frame body in the opposite direction, or is arranged on the lower end of the extrusion frame body in the inward and outward direction, or is arranged on the lower end of the extrusion frame body in the direction forming an acute angle with the inward and outward direction.

5. The extruded frame of any one of claims 1, 2 or 4, wherein: The two side walls of the lining fixing groove are respectively provided with a third limiting protrusion, and the two sides of the fixed end of the lining fixing strip are respectively provided with a fourth limiting protrusion abutting against the third limiting protrusion to prevent disengagement.

6. The extruded frame of claim 5, wherein: The inner wall of the groove of the lining fixing groove is provided with an inclined surface inclined inward, and the lower end of the lining fixing strip is inclined inward and abuts against the inclined surface.

7. The extruded frame of claim 1, wherein: The lower groove wall of the box body fixing groove extends inward to form an extension for increasing the abutting area with the external box body.

8. The extruded frame of claim 1, wherein: The outer side surface of the stop protrusion is provided with a positioning protrusion or a positioning groove.

9. The extruded frame of claim 1, wherein: The zipper fixing strip is made of soft plastic material, hard plastic material or metal material.

10. The extruded frame of claim 1, wherein: The lining fixing strip is made of soft plastic material, hard plastic material or metal material.

11. The extruded frame of claim 1, wherein: The stop protrusion is provided with a reinforcing structure, and the reinforcing structure is in the shape of a "mouth" character, a "day" character or a "eye" character.

12. The extruded frame of claim 11, wherein: The lining fixing groove penetrates the reinforcing structure in the inward and outward direction to form two or three anti-disengagement grooves for adjusting the insertion depth of the lining fixing strip.