A rivetless frame structure for a luggage

Abstract

The utility model discloses a no rivet frame structure for luggage, including box shell, hard frame, hard locking strip and locking element, and hard frame has the bayonet, and the opening edge of box shell and hard locking strip are embedded in the bayonet side by side, and the hard locking strip is locked and fixed with the hard frame through the locking element, and the locking element is located the inside of box shell. When installing, first, the opening edge of box shell is inserted into the bayonet of hard frame, then, the hard locking strip is inserted into the bayonet of hard frame in the inside of box shell, and then, the hard locking strip is locked and fixed with the hard frame through the locking element. The utility model embeds the hard locking strip between the hard frame and box shell, and adopts the mode that the screw element passes through the hard frame from the inside of hard frame and fixes the hard locking strip between the hard frame and box shell, realizes the fixed structure of no rivet frame, makes the design style of luggage more simple, and is favorable for the market popularization of product.

Description

Technical Field

[0001] This utility model relates to the field of luggage manufacturing technology, and in particular to a rivetless frame structure for luggage. Background Technology

[0002] In today's luggage industry, as consumer aesthetic demands continue to evolve, the requirements for luggage design styles are becoming increasingly minimalist. To achieve the ultimate minimalist style, consumers are placing increasingly stringent restrictions on the number of rivets on luggage. However, most framed luggage uses rivets to secure the frame to the outer shell, especially larger bags (such as suitcases). The presence of rivets can make the style appear less minimalist. Another common method is to use glue to bond the shell to the frame. While this can also achieve a minimalist look, glue bonding is limited by the materials of the shell and frame. Different materials sometimes cannot be glued together, resulting in narrow adaptability. Furthermore, the bond strength is often limited, insufficient for the needs of larger luggage. In addition, glue bonding requires ensuring the bonding area and curing time during production, creating a significant bottleneck in production efficiency. Moreover, glued surfaces cannot be disassembled for repairs, leading to higher operating costs for consumers and hindering product marketing. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a rivetless frame structure for bags. This frame structure is simple, stable and reliable, has a wide range of applications, and is convenient for bag disassembly and maintenance. After application, the bag style is simple and the bag products have strong market competitiveness.

[0004] The technical solution of this utility model is as follows: a rivetless frame structure for bags, including a case shell, a rigid frame, a rigid locking strip, and a locking element. The rigid frame has a latch, and the opening edge of the case shell and the rigid locking strip are embedded side by side in the latch. The rigid locking strip and the rigid frame are locked and fixed together by the locking element, which is located inside the case shell. Specifically, the rigid locking strip is embedded between the case shell and the rigid frame, pressing the case shell tightly against the latch of the rigid frame. The locking element passes through the rigid frame from the inside 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 latch of the rigid frame has good rigidity, as long as the rigid locking strip is not manually removed, the rigid frame cannot detach from the case shell under the action of the latch.

[0005] The rigid frame has a U-shaped latch, with the outer side and the inner side of the frame on either side.

[0006] 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 connects to the opening edge of the shell, and the inner side of the frame is wider to ensure that there is a sufficiently large contact surface between the rigid locking strip and the rigid frame so that the two can be better fixed, and the rigid locking strip can stably hold the shell in place.

[0007] The opening edge of the case shell is grooved, and after the opening edge is inserted into the slot of the rigid frame, the surface of the case shell is flush with the outer side of the frame. In this structure, the opening of the case shell tapers towards the center of the case shell, making the opening edge grooved, which facilitates the installation between the case shell and the rigid frame. Furthermore, the flush outer surfaces of the two form an integral structure, which helps to achieve a simple and uniform appearance of the case.

[0008] The inner edge of the frame is provided with a first engaging portion, and the end of the rigid locking strip is provided with a second engaging portion. The first engaging portion and the second engaging portion cooperate to form a locking structure. This locking structure can form a pre-installation structure, so that the rigid locking strip is initially fixed to the rigid frame. It can also work together with the 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 avoiding the stability of the fixed connection between the two due to the large inner width of the rigid frame.

[0009] The first and second occlusal portions are respectively hook-shaped, and the first and second occlusal portions interlock to form a preliminary fixing structure.

[0010] The rigid locking strip is an integral structure, with an overall L-shape, including an embedded part, a fixed mounting part, a connecting part, and a second engaging part connected in sequence. The fixed mounting part is provided with a threaded through hole, and correspondingly, the inner side of the frame is also provided with a fixed through hole. The locking element locks and fixes the rigid locking strip and the rigid frame at the fixed through hole and the threaded through hole.

[0011] The thickness of the embedded part is less than the thickness of the fixed installation part. The side of the connecting part that connects to the shell is flat, and the side of the connecting part that connects to the inner side of the frame is wavy.

[0012] The length of the insert is approximately the same as the height of the groove-shaped structure at the edge of the box opening. The side of the insert that connects to the box is inclined, so that the thickness of the insert gradually decreases, so that the rigid locking strip can be inserted into the bayonet. The fixing and mounting part is mainly used for connecting and fixing the locking element. One side of the connecting part is flat so that the rigid locking strip can be pressed against the inside of the box after installation, and the box is pressed and fixed. The other side is wavy, which can reduce the overall weight of the rigid locking strip and reduce the friction between the rigid locking strip and the rigid frame when the rigid locking strip is inserted into the bayonet. The second engagement part is located at the end of the rigid locking strip, and its hook part is engaged with the first engagement part on the inside of the frame.

[0013] The rigid locking strips are distributed in a segmented structure around the rigid frame, with intermittent distribution along the perimeter. Generally, rigid locking strips are distributed along the straight sections around the case shell, and the intermittent distribution of these strips can be flexibly adjusted according to the installation arrangement between the case shell and the rigid frame. Rigid locking strips are not required at bends in the case shell; tests have shown that this does not affect the structural stability between the case shell and the rigid frame, and also reduces the overall weight of the bag.

[0014] As a preferred embodiment, the locking element is a screw.

[0015] This utility model discloses an installation method for the aforementioned rivetless frame structure for bags, specifically as follows: First, insert the opening edge of the bag shell 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 bag shell; finally, lock the rigid locking strip to the rigid frame using a locking element. The locking element can be a screw, which secures the rigid locking strip to the rigid frame through a threaded connection. After installation, the end of the screw is flush with the surface of the rigid locking strip, and together with the rigid locking strip, it presses against the inside of the bag shell.

[0016] The principle behind the rivetless frame structure used in the above-mentioned bags is as follows: the grooved structure along the edge of the opening of the bag shell increases the thickness of the bag shell, and the rigid locking strip fills the gap between the rigid frame and the bag shell. Since the rigid locking strip cannot be easily compressed, the U-shaped latch of the rigid frame has good rigidity. Therefore, as long as the rigid locking strip is not removed, the rigid frame cannot detach from the bag shell under the action of the U-shaped latch.

[0017] Compared with the prior art, this utility model has the following advantages:

[0018] The rivetless frame structure used in this bag achieves a fixed structure by embedding a rigid locking strip between the rigid frame and the shell, and by using threaded elements to pass through the rigid frame from the inside to fix the locking strip between the rigid frame and the shell. This makes the bag's design style more minimalist and is conducive to the product's market promotion.

[0019] The rivetless frame structure used in this bag features a groove along the edge of the opening, combined with a rigid locking strip. Utilizing the physical properties of the rigid locking strip, the rigid frame can be firmly fixed to the shell, avoiding issues with the strength of the fixation between the rigid frame and the shell. This ensures that even large bags with high load-bearing requirements can meet their strength requirements.

[0020] In the rivetless frame structure and installation method used in this bag, the rigid locking strip can be removed by disassembling the locking components (such as screws). After removing the rigid locking strip, the fixing structure between the rigid frame and the shell is released, allowing the rigid frame and shell to be separated for easy disassembly, maintenance, and replacement. Furthermore, because this rivetless frame structure uses a simple physical fixing method, it is more adaptable to a wider range of rigid frame and shell materials. Attached Figure Description

[0021] Figure 1 This is a structural diagram of the rivetless frame structure.

[0022] Figure 2 This is a schematic diagram of the overall structure of the bag after the application of this rivetless frame structure.

[0023] Figure 3 This is a cross-sectional view of the rivetless frame structure.

[0024] Figure 4 This is a schematic diagram illustrating the installation principle of this rivetless frame structure.

[0025] The components indicated by the reference numerals in the above figures are as follows:

[0026] 1 is the shell, 1-1 is the groove structure, 2 is the rigid frame, 2-1 is the outer side of the frame, 2-2 is the inner side of the frame, 2-3 is the first engagement part, 3 is the rigid locking strip, 3-1 is the embedding part, 3-2 is the fixed installation part, 3-3 is the connecting part, 3-4 is the second engagement part, 4 is the locking element, and 5 is the bayonet. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the embodiments, but the implementation of the present invention is not limited thereto.

[0028] Example

[0029] This embodiment describes a rivetless frame structure for bags.

[0030] like Figure 1 As shown, the rivetless frame structure includes a housing 1, a rigid frame 2, a rigid locking strip 3, and a locking element 4. The rigid frame has a bayonet 5, and the opening edge of the housing and the rigid locking strip are fitted side by side into the bayonet (e.g., Figure 3As shown, the rigid locking strip and the rigid frame are locked together by a locking element located inside the case. The rigid locking strip is embedded between the case and the rigid frame, pressing the case against the frame's latch. The locking element passes through the rigid frame from the inside and is fixed to the locking strip, securely locking the locking strip between the rigid frame and the case. Because the rigid locking strip cannot be easily compressed, and the frame's latch has good rigidity, the rigid frame cannot detach from the case unless the locking strip is manually removed.

[0031] On the rigid frame, the latch is U-shaped, with the two sides of the latch being the outer frame side 2-1 and the inner frame side 2-2, respectively. The width of the inner frame side is greater than the width of the outer frame side. The outer frame side meets the opening edge of the case shell, while the larger width of the inner frame side ensures a sufficiently large contact surface between the rigid locking strip and the rigid frame for better fixation, and the rigid locking strip can stably hold the case shell in place.

[0032] The opening edge of the box shell is grooved (i.e., as shown in the image). Figure 3 As shown in the groove structure 1-1), after the opening edge is embedded into the slot of the rigid frame, the surface of the case shell is flush with the outer side of the frame. In this structure, the opening of the case shell tapers towards the center of the case shell, so that the opening edge forms a groove, which facilitates the installation between the case shell and the rigid frame. Furthermore, the flush outer surfaces of the two form an integral structure, which helps to achieve a simple and unified appearance of the case.

[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 engaging portion and the second engaging portion cooperate to form a locking structure. This locking structure can form a pre-installation structure, so that the rigid locking strip is initially fixed to the rigid frame. It can also work together with the 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 avoiding the stability of the fixed connection between the two due to the large width of the inner side of the rigid frame. The first engaging portion and the second engaging portion are hook-shaped, and the first engaging portion and the second engaging portion interlock to form a preliminary fixed structure.

[0034] like Figure 3The rigid locking strip is an integral L-shaped structure, comprising an embedded part 3-1, a fixed mounting part 3-2, a connecting part 3-3, and a second engaging part 3-4 connected in sequence. The fixed mounting part has a threaded through hole, and correspondingly, the inner side of the frame also has a fixed through hole. The locking element locks the rigid locking strip and the rigid frame securely at the fixed through hole and the threaded through hole. The thickness of the embedded part is less than the thickness of the fixed mounting part. The side of the connecting part that contacts the housing is flat, while the side that contacts the inner side of the frame is wavy. The length of the insert is approximately the same as the height of the groove-shaped structure at the edge of the box opening. The side of the insert that connects to the box is inclined, so that the thickness of the insert gradually decreases, so that the rigid locking strip can be inserted into the bayonet. The fixing and mounting part is mainly used for connecting and fixing the locking element. One side of the connecting part is flat so that the rigid locking strip can be pressed against the inside of the box after installation, and the box is pressed and fixed. The other side is wavy, which can reduce the overall weight of the rigid locking strip and reduce the friction between the rigid locking strip and the rigid frame when the rigid locking strip is inserted into the bayonet. The second engagement part is located at the end of the rigid locking strip, and its hook part is engaged with the first engagement part on the inside of the frame.

[0035] like Figure 1 As shown, the rigid locking strips are distributed in a segmented structure around the rigid frame, with an intermittent distribution along the perimeter. Generally, rigid locking strips are distributed along the straight sections around the case shell, and the intermittent distribution of these strips can be flexibly adjusted according to the installation arrangement between the case shell and the rigid frame. Rigid locking strips are not required at bends in the case shell. Tests have shown that this does not affect the structural stability between the case shell and the rigid frame, and also reduces the overall weight of the bag.

[0036] In this embodiment, as a preferred solution, the locking element can be a screw.

[0037] When the aforementioned rivetless frame structure for bags is used, the installation method is as follows: (e.g.) Figure 4 As shown, first insert the opening edge of the case into the slot of the rigid frame. Then, insert the rigid locking strip into the slot of the rigid frame inside the case. Finally, use the locking element to lock the rigid locking strip to the rigid frame. The locking element can be a screw, which uses a threaded connection to lock the rigid locking strip to the rigid frame. After installation, the end of the screw is flush with the surface of the rigid locking strip, and together with the rigid locking strip, it presses against the inside of the case.

[0038] The principle behind the rivetless frame structure used in the above-mentioned bags is as follows: the grooved structure along the edge of the opening of the bag shell increases the thickness of the bag shell, and the rigid locking strip fills the gap between the rigid frame and the bag shell. Since the rigid locking strip cannot be easily compressed, the U-shaped latch of the rigid frame has good rigidity. Therefore, as long as the rigid locking strip is not removed, the rigid frame cannot detach from the bag shell under the action of the U-shaped latch.

[0039] As described above, the present invention can be well implemented. The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made in accordance with the content of the present invention are covered by the scope of protection claimed by the claims of the present invention.

Claims

1. A rivetless frame structure for bags, characterized in that, It includes a shell, a rigid frame, a rigid locking strip, and a locking element. The rigid frame has a bayonet. The opening edge of the shell and the rigid locking strip are inserted side by side into the bayonet. The rigid locking strip and the rigid frame are locked and fixed together by the locking element, which is located inside the shell.

2. The rivetless frame structure for bags according to claim 1, characterized in that, The rigid frame has a U-shaped latch, with the outer side and the inner side of the frame on either side.

3. The rivetless frame structure for bags 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. The rivetless frame structure for bags according to claim 2, characterized in that, The opening edge of the box shell is grooved, and after the opening edge is embedded into the slot of the rigid frame, the surface of the box shell is flush with the outer side of the frame.

5. The rivetless frame structure for bags according to claim 2, characterized in that, The inner edge of the frame is provided with a first engagement part, and the end of the rigid locking strip is provided with a second engagement part. The first engagement part and the second engagement part cooperate to form a locking structure.

6. The rivetless frame structure for bags according to claim 5, characterized in that, The first and second occlusal portions are respectively hook-shaped, and the first and second occlusal portions interlock to form a preliminary fixing structure.

7. The rivetless frame structure for bags according to claim 5, characterized in that, The rigid locking strip is an integral structure, with an overall L-shape, including an embedded part, a fixed mounting part, a connecting part, and a second engaging part connected in sequence. The fixed mounting part is provided with a threaded through hole, and correspondingly, the inner side of the frame is also provided with a fixed through hole. The locking element locks and fixes the rigid locking strip and the rigid frame at the fixed through hole and the threaded through hole.

8. The rivetless frame structure for bags according to claim 7, characterized in that, The thickness of the embedded part is less than the thickness of the fixed installation part. The side of the connecting part that connects to the shell is flat, and the side of the connecting part that connects to the inner side of the frame is wavy.

9. The rivetless frame structure for bags according to claim 1, characterized in that, The rigid locking strips are distributed in a segmented structure around the rigid frame, and are intermittently distributed around the rigid frame.

10. The rivetless frame structure for bags according to claim 1, characterized in that, The locking element is a screw.

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