Rivet-free frame structure for luggage and mounting method of rivet-free frame structure

Abstract

The invention discloses a rivet-free frame structure for bags and suitcases and a mounting method thereof.The rivet-free frame structure comprises a case shell, a hard frame, a hard locking strip and a locking element, the hard frame is provided with a bayonet, and the opening edge of the case shell and the hard locking strip are embedded in the bayonet side by side; the hard locking strip and the hard frame are locked and fixed through a locking element, and the locking element is located on the inner side of the box shell. The installation method comprises the steps that the opening edge of the box shell is inserted into the clamping opening of the hard frame, then the hard locking strip is inserted into the clamping opening of the hard frame on the inner side of the box shell, and then the hard locking strip and the hard frame are locked and fixed through the locking element. According to the invention, the hard locking strip is embedded between the hard frame and the case shell, the thread element penetrates through the hard frame from the inner side of the hard frame, and the hard locking strip is fixed between the hard frame and the case shell, so that the fixing structure of the rivet-free frame is realized, the design style of the case is simpler, and the market promotion of the product is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of luggage manufacturing, and in particular to a rivet-free frame structure for luggage and an installation method thereof. Background Art

[0002] In today's luggage industry, as consumers' aesthetic tastes continue to evolve, the demand for minimalist designs is growing. To achieve the ultimate minimalist style, consumers are placing increasingly stringent restrictions on the number of rivets on luggage. Common luggage frames almost always use rivets to secure the frame to the shell. This is especially true for larger luggage (such as suitcases). The presence of rivets can easily diminish the minimalist design of the luggage. Another common process is to glue the shell to the frame. While this can also achieve a minimalist look, gluing is limited by the materials of the shell and frame. Bonding between different materials can sometimes be difficult, resulting in limited adaptability. Furthermore, the bond strength is often limited, often failing to meet the demands of larger luggage. Furthermore, gluing requires ensuring a sufficient bonding area and curing time in actual production, creating significant bottlenecks in production efficiency. Furthermore, the frame and shell cannot be disassembled after gluing, making it impossible to disassemble and repair the product. This results in high costs for consumers and hinders product marketing. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a rivet-free frame structure for luggage. The frame structure is simple, stable and reliable, has a wide range of applications, and is convenient for luggage disassembly and maintenance. After application, the luggage style is simple, and the luggage products have strong market competitiveness.

[0004] Another object of the present invention is to provide a method for installing the rivet-free frame structure for the above-mentioned luggage.

[0005] The technical solution of the present invention is as follows: a rivet-free frame structure for luggage, comprising a case shell, a rigid frame, a rigid locking strip, and a locking element. The rigid frame has a bayonet, and the opening edge of the case shell and the rigid locking strip are embedded side by side in the bayonet. The rigid locking strip and the rigid frame are locked and fixed by the locking element, and the locking element is located on the inner side of the case shell. The rigid locking strip is embedded between the case shell and the rigid frame, pressing the case shell against the bayonet of the rigid frame. The locking element passes through the rigid frame from the inner side and is fixed to the rigid locking strip, firmly locking the rigid locking strip between the rigid frame and the case shell. Because the rigid locking strip cannot be easily compressed and the bayonet of the rigid frame also has good rigidity, as long as the rigid locking strip is not manually removed, the rigid frame cannot be separated from the case shell under the action of the bayonet of the rigid frame.

[0006] The bayonet of the hard frame is in U shape, and the two sides of the bayonet are the outer side of the frame and the inner side of the frame respectively.

[0007] The width of the inner side of the frame is greater than the width of the outer side of the frame. The outer side of the frame is connected with the opening edge of the box shell, and the inner side of the frame has a greater width to ensure that the hard locking strip and the hard frame have a large enough contact surface, so that they are better fixed, and the hard locking strip can tightly press the box shell more stably.

[0008] The opening edge of the box shell is in groove shape, and the surface of the box shell is flush with the outer side of the frame after the opening edge is embedded in the bayonet of the hard frame. In this structure, the opening of the box shell is contracted to the center of the box shell, so that the opening edge is in groove shape, which facilitates the installation between the box shell and the hard frame, and the outer surfaces of the two are flush to form an integral structure, which is beneficial to realize the simplicity and unity of the appearance of the luggage.

[0009] The edge of the inner side of the frame is provided with a first engagement part, and the end of the hard locking strip is provided with a second engagement part. The first engagement part and the second engagement part cooperate to form a locking structure. The locking structure can form a pre-installation structure to preliminarily fix the hard locking strip on the hard frame, and also can jointly act with the locking element to form a stable fixing structure between the hard locking strip and the hard frame, thereby reducing the number of locking elements used and avoiding affecting the stability of the fixed connection between the two due to the greater width of the inner side of the hard frame.

[0010] The first engagement part and the second engagement part are respectively in hook shape, and the first engagement part and the second engagement part are buckled to form a preliminary fixing structure.

[0011] The hard locking strip is in integral structure and is in L shape as a whole, including an embedding part, a fixed mounting part, a connecting part and a second engagement part connected in sequence. The fixed mounting part is provided with a threaded through hole, and the inner side of the frame is also provided with a fixed through hole. The locking element locks and fixes the hard locking strip and the hard frame at the fixed through hole and the threaded through hole.

[0012] The thickness of the embedding part is less than the thickness of the fixed mounting part. The side of the connecting part connected with the box shell is in plane shape, and the side of the connecting part connected with the inner side of the frame is in wave shape.

[0013] Among them, the length of the embedded part is roughly the same as the height of the groove-shaped structure at the edge of the box shell opening, and the side of the embedded part connected to the box shell is inclined, so that the thickness of the embedded part gradually decreases, so that the hard locking strip can be inserted into the bayonet; the fixed installation part is mainly used for connecting and fixing the locking element; one side of the connection part is flat, so that the hard locking strip can be tightly attached to the inner side of the box shell after installation, and the box shell can be tightly fixed, and the other side is wavy, which can reduce the overall weight of the hard locking strip on the one hand, and reduce the friction between the hard locking strip and the hard frame when the hard locking strip is inserted into the bayonet on the other hand; the second bite part is provided at the end of the hard locking strip, and its hook is interlocked with the first bite part on the inner side of the frame.

[0014] The rigid locking strips are distributed in a segmented structure around the rigid frame, with a discontinuous distribution along the perimeter of the rigid frame. Generally, the rigid locking strips are located along the straight segments around the case shell, and the discontinuous distribution of the rigid locking strips can be flexibly arranged based on the installation conditions between the case shell and the rigid frame. Rigid locking strips are not required at the corners of the case shell. Tests have shown that this does not affect the structural stability between the case shell and the rigid frame, while also reducing the overall weight of the case.

[0015] The present invention provides a method for installing the aforementioned rivetless frame structure for luggage, specifically comprising: first inserting the edge of the opening of the case shell into the slot of the rigid frame, then inserting the rigid locking strip into the slot of the rigid frame on the inner side of the case shell, and then locking the rigid locking strip to the rigid frame using a locking element. The locking element may be a screw, which is threadedly connected to lock the rigid locking strip to the rigid frame. After locking and installation, the end of the screw is flush with the surface of the rigid locking strip and is pressed against the inner side of the case shell together with the rigid locking strip.

[0016] The principle of the rivet-free frame structure used in the above-mentioned luggage is: the groove-shaped structure on the edge of the box shell opening increases the thickness of the box shell, and the hard locking strip just fills the gap between the hard frame and the box shell. Since the hard locking strip cannot be easily compressed, the U-shaped bayonet of the hard frame has good rigidity, so as long as the hard locking strip is not removed, the hard frame cannot be separated from the box shell under the action of the U-shaped bayonet of the hard frame.

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

[0018] In the rivet-free frame structure used in this luggage, a hard locking strip is embedded between the hard frame and the box shell, and a threaded element is used to pass through the hard frame from the inside of the hard frame to fix the hard locking strip between the hard frame and the box shell. This realizes a rivet-free frame fixing structure, makes the design style of the luggage more simple, and is conducive to the market promotion of the product.

[0019] The hard frame is fixed on the box shell by setting a groove on the opening edge of the box shell and cooperating with the structure design of the hard locking strip, and the physical characteristics of the hard locking strip are used, so that the hard frame is firmly fixed on the box shell, and the fixing strength between the hard frame and the box shell is avoided, and even the box with large volume and high bearing requirement can meet the use strength requirement.

[0020] In the hard frame structure without rivet and the installation method thereof, the hard locking strip can be taken out by removing the locking element (such as a screw), and after the hard locking strip is taken out, the fixing structure between the hard frame and the box shell is released, and the hard frame and the box shell can be separated, which is convenient for disassembly, maintenance and replacement. At the same time, since the hard frame structure without rivet is fixed by a simple physical method, the adaptability to the materials of the hard frame and the box shell is wider. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the hard frame structure without rivet.

[0022] Figure 2 It is a whole structural schematic diagram of the box after the hard frame structure without rivet is applied.

[0023] Figure 3 It is a sectional view of the hard frame structure without rivet.

[0024] Figure 4 It is a principle schematic diagram when the hard frame structure without rivet is installed.

[0025] In the above figures, the components shown by the reference numerals are as follows:

[0026] 1 is a box shell, 1-1 is a groove structure, 2 is a hard frame, 2-1 is an outer side of the frame, 2-2 is an inner side of the frame, 2-3 is a first engagement part, 3 is a hard locking strip, 3-1 is an embedded part, 3-2 is a fixed mounting part, 3-3 is a connecting part, 3-4 is a second engagement part, 4 is a locking element, and 5 is a bayonet. DETAILED DESCRIPTION

[0027] The application will be further described in detail below in combination with the embodiments, but the embodiments of the application are not limited thereto.

[0028] EMBODIMENT

[0029] The hard frame structure without rivet for the box and the installation method thereof.

[0030] As shown in the drawings, Figure 1 The hard frame structure without rivet includes a box shell 1, a hard frame 2, a hard locking strip 3 and a locking element 4, the hard frame has a bayonet 5, and the opening edge of the box shell and the hard locking strip are embedded in the bayonet side by side (as shown in Figure 3As shown in the figure, the rigid locking strip and the rigid frame are locked and fixed by a locking element located on the inner side of the box shell. The rigid locking strip is embedded between the box shell and the rigid frame, pressing the box shell tightly against the bayonet of the rigid frame. The locking element passes through the rigid frame from the inner side and is fixed to the rigid locking strip, firmly locking the rigid locking strip between the rigid frame and the box shell. Since the rigid locking strip cannot be easily compressed and the bayonet of the rigid frame is also highly rigid, as long as the rigid locking strip is not manually removed, the rigid frame cannot be separated from the box shell due to the bayonet of the rigid frame.

[0031] The rigid frame has a U-shaped bayonet, flanked by an outer frame 2-1 and an inner frame 2-2. The inner frame is wider than the outer frame. The outer frame meets the edge of the case opening, while the inner frame is wider. This ensures a sufficient contact surface between the rigid locking strip and the rigid frame, ensuring a better fixation and more stable holding of the case against the outer frame.

[0032] The opening edge of the box shell is grooved (i.e. Figure 3 In the groove structure 1-1 shown, after the opening edge is inserted into the slot of the rigid frame, the surface of the case is flush with the outer surface of the frame. In this structure, the opening of the case is tapered toward the center of the case, forming a groove at the edge of the opening. This facilitates the installation of the case and the rigid frame, and the outer surfaces of the two are flush, forming a monolithic structure, which contributes to a simple and unified appearance of the luggage.

[0033] The inner edge of the frame is provided with a first engaging portion 2-3, and the end of the rigid locking strip is provided with a second engaging portion 3-4. The first and second engaging portions cooperate to form a locking structure. This locking structure can form a pre-installed structure, initially securing the rigid locking strip to the rigid frame. It can also work in conjunction with a locking element to form a stable fixed structure between the rigid locking strip and the rigid frame, reducing the number of locking elements used and preventing the stability of the fixed connection between the two due to the wide inner width of the rigid frame. The first and second engaging portions are each hook-shaped, and the first and second engaging portions interlock to form a preliminary fixed structure.

[0034] like Figure 3The rigid locking strip is an integrated L-shaped structure, comprising an embedded portion 3-1, a fixed mounting portion 3-2, a connecting portion 3-3, and a second engaging portion 3-4, which are sequentially connected. The fixed mounting portion is provided with a threaded through-hole, and correspondingly, a fixing through-hole is provided on the inner side of the frame. The locking element secures the rigid locking strip to the rigid frame at the fixing through-holes and the threaded through-holes. The embedded portion is thinner than the fixed mounting portion. The connecting portion is flat where it meets the housing, while the connecting portion is wavy where it meets the inner side of the frame. Among them, the length of the embedded part is roughly the same as the height of the groove-shaped structure at the edge of the box shell opening, and the side of the embedded part connected to the box shell is inclined, so that the thickness of the embedded part gradually decreases, so that the hard locking strip can be inserted into the bayonet; the fixed installation part is mainly used for connecting and fixing the locking element; one side of the connection part is flat, so that the hard locking strip can be tightly attached to the inner side of the box shell after installation, and the box shell can be tightly fixed, and the other side is wavy, which can reduce the overall weight of the hard locking strip on the one hand, and reduce the friction between the hard locking strip and the hard frame when the hard locking strip is inserted into the bayonet on the other hand; the second bite part is provided at the end of the hard locking strip, and its hook is interlocked with the first bite part on the inner side of the frame.

[0035] like Figure 1 As shown, the rigid locking strips are distributed in a segmented structure around the rigid frame, with a discontinuous distribution along the perimeter of the rigid frame. Generally, rigid locking strips are distributed along the straight segments around the case shell, and the discontinuous distribution of the rigid locking strips can be flexibly arranged based on the installation conditions between the case shell and the rigid frame. Rigid locking strips are not required at the corners of the case shell. Tests have shown that this does not affect the structural stability between the case shell and the rigid frame, while also reducing the overall weight of the case.

[0036] The present embodiment provides a method for installing the rivet-free frame structure for the above-mentioned luggage, specifically as follows: Figure 4 As shown, first insert the edge of the box shell's opening into the slot of the rigid frame, then insert the rigid locking strip into the slot of the rigid frame on the inside of the box shell, and then use the locking element to lock the rigid locking strip to the rigid frame. The locking element can be a screw, which is threaded to lock the rigid locking strip to the rigid frame. After locking and installation, the end of the screw is flush with the surface of the rigid locking strip and is pressed against the inside of the box shell together with the rigid locking strip.

[0037] The principle of the rivet-free frame structure used in the above-mentioned luggage is: the groove-shaped structure on the edge of the box shell opening increases the thickness of the box shell, and the hard locking strip just fills the gap between the hard frame and the box shell. Since the hard locking strip cannot be easily compressed, the U-shaped bayonet of the hard frame has good rigidity, so as long as the hard locking strip is not removed, the hard frame cannot be separated from the box shell under the action of the U-shaped bayonet of the hard frame.

[0038] As described above, the application can be implemented well, the above-mentioned embodiments are only the preferred embodiments of the application, and are not used to limit the implementation scope of the application; that is, all equivalent changes and modifications made according to the contents of the application are covered in the scope of the claims of the application.

Claims

1. A rivet-free frame structure for luggage, characterized in that: It includes a box shell, a hard frame, a hard locking strip and a locking element. The hard frame has a bayonet. The opening edge of the box shell and the hard locking strip are embedded in the bayonet side by side. The hard locking strip and the hard frame are locked and fixed by the locking element. The locking element is located on the inner side of the box shell.

2. A rivet-free frame structure for luggage according to claim 1, characterized in that: The bayonet on the hard frame is U-shaped, and the two sides of the bayonet are respectively the outer side and the inner side of the frame.

3. A rivet-free frame structure for luggage according to claim 2, characterized in that: The width of the inner side of the frame is greater than the width of the outer side of the frame.

4. A rivet-free frame structure for luggage according to claim 2, characterized in that: The opening edge of the box shell is in a groove shape. After the opening edge is embedded in the bayonet of the hard frame, the surface of the box shell is flush with the outer side of the frame.

5. The rivet-free frame structure for luggage according to claim 2, characterized in that: A first bite portion is provided on the edge of the inner side of the frame, and a second bite portion is provided at the end of the hard locking strip. The first bite portion and the second bite portion cooperate to form a locking structure.

6. A rivet-free frame structure for luggage according to claim 5, characterized in that: The first bite portion and the second bite portion are respectively hook-shaped, and the first bite portion and the second bite portion are buckled together to form a preliminary fixing structure.

7. The rivet-free frame structure for luggage according to claim 5, characterized in that: The hard locking strip is an integrated structure, which is L-shaped as a whole, including an embedded part, a fixed installation part, a connecting part and a second bite part connected in sequence. A threaded through hole is provided on the fixed installation part, and correspondingly, a fixed through hole is also provided on the inner side of the frame. The locking element locks the hard locking strip and the hard frame at the fixed through hole and the threaded through hole.

8. A rivet-free frame structure for luggage according to claim 7, characterized in that: The thickness of the embedded portion is smaller than that of the fixed installation portion. The side of the connecting portion connected to the box shell is flat, and the side of the connecting portion connected to the inner side of the frame is wavy.

9. The rivet-free frame structure for luggage according to claim 1, characterized in that: The hard locking strips are distributed around the hard frame in a segmented structure and are distributed discontinuously along the four sides of the hard frame.

10. The method for installing a rivet-free frame structure for a bag according to any one of claims 1 to 9, characterized in that: First, insert the opening edge of the box shell into the bayonet of the hard frame, then insert the hard locking strip into the bayonet of the hard frame on the inner side of the box shell, and then lock the hard locking strip and the hard frame through the locking element.

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