WO2025134047A1

WO2025134047A1 - Convertible multifunctional bag with closure system and modular accessories

Info

Publication number: WO2025134047A1
Application number: PCT/IB2024/063014
Authority: WO
Inventors: Khaled ABDO
Original assignee: Kjn Innovation Sarl
Current assignee: Kjn Innovation Sarl
Priority date: 2023-12-21
Filing date: 2024-12-20
Publication date: 2025-06-26
Anticipated expiration: 2026-06-21

Abstract

A convertible bag 1 comprising a flexible structure 2 formed by at least one layer of sheet material 3a, 3b, a closure mechanism 5, wherein the bag 1 comprises a closed position in which the flexible structure 2 is bent creating at least one internal hollow space 6 and an open position in which the flexible structure 2 is straight creating a flat surface.

Description

CONVERTIBLE MULTIFUNCTIONAL BAG WITH CLOSURE SYSTEM AND MODULAR ACCESSORIES

FIELD OF THE INVENTION

The present disclosure relates generally to a bag, more particularly to a convertible bag that can also function as a desk pad.

BACKGROUND

Bags are essential accessories for transporting personal belongings, and modern designs increasingly prioritize practicality, versatility, security, and adaptability to dynamic lifestyles. Despite ongoing innovation in the field of bags as well as leather goods, current solutions often fail to fully meet the demands of active, modern users who seek a combination of flexibility, security, and ease of access.

Advancements in bag design have addressed several specific aspects, such as storage capacity, material durability, closure systems, and portability. However, these advancements have typically been isolated, resulting in solutions that excel in one area while neglecting others. For instance, many designs focus on optimizing storage capacity and improving organization through compartments and specialized pockets. While these features enhance usability, they often limit the bag adaptability to different configurations or carrying modes. Similarly, the use of resilient materials, including reinforced fabrics and high-quality leathers, has extended the longevity of bags, but these material improvements are rarely paired with features that enhance multifunctionality or ergonomic adaptability.

Closure systems represent another area of innovation. Reinforced zippers, mechanical locks, and magnetic latches have been developed to enhance security, preventing accidental openings and ensuring the safety of contents. However, these solutions often compromise accessibility, making the bag less convenient to use in dynamic scenarios where quick and easy access is essential.

Solutions aimed at improving portability, such as adjustable straps, ergonomic handles, and lightweight constructions, have enhanced carrying comfort. Despite these advancements, few designs offer true modularity or allow seamless transitions between various carrying modes, such as briefcase, tote bag, messenger bag, or backpack.

To date, advancements in bag design have included secure closure systems, high-quality materials, and modular designs. However, there remains an unmet need for bags that adapt to various usage contexts without compromising on accessibility, security, comfort or convertibility.

Existing solutions often focus on a single aspect, like storage capacity or security, without true versatility.

The limitations of prior designs highlight the need for an improved convertible bag that integrates multiple features into a single, convertible and versatile solution balancing secure closure, quick accessibility, and adaptability, while also ensuring durability, modularity, and ergonomic comfort.

SUMMARY

The present invention provides a convertible bag according to claim 1, designed to overcome the limitations of prior art. Other advantageous features can be found in the dependent claims.

The invention addresses the technical problem of the prior art by providing a convertible bag capable of transforming between multiple configurations while maintaining accessibility, security, and structural integrity.

This invention represents a significant advancement in multifunctional and convertible bags, providing secure closure, quick accessibility, and adaptability for everyday scenarios.

For example, by incorporating a closure mechanism, the convertible bag provides an efficient solution for securing user goods inside the bag as well as enabling to use the bag as a desk pad.

Moreover, by providing modular carrying accessories, the bag provides a versatile solution that surpasses the limitations of existing designs. Its innovative approach integrates features such as storage capacity, durable materials, enhanced security, and transport versatility to offer an optimal user experience.

The bag is configured to be closed, forming an internal hollow space that securely contains and protects the user belongings during transport. The flexible structure and the closure mechanism cooperate to maintain the shape of the bag in its closed position, ensuring stability and durability while accommodating various items.

The reinforcing framework enhances the structural integrity of the bag, ensuring that it retains its shape during use, whether in the closed or open configuration. It provides rigidity to support the flexible sheet materials, prevents deformation under load, and enables the reliable operation of the closure mechanism. Additionally, the reinforcing framework facilitates the integration of functional components, such as magnets, ensuring secure closure and modular adaptability.

The design allows the bag to transform into various carrying modes, including a briefcase, tote bag, messenger bag, and backpack, through the use of modular magnetic accessories. These interchangeable accessories attach securely to the bag, providing a range of transport options while ensuring the stability and security of its contents.

Additionally, the bag features alternative access systems, such as quick access openings positioned at strategic locations, allowing users to retrieve items without detaching the portability accessories or without completely opening the bag.

The convertible bag also includes the capability to lie flat, allowing it to serve as a desk pad or work surface, adding to its multifunctionality. This combination of features ensures the bag meets the demands of modern users who require a product that adapts seamlessly to diverse contexts without compromising functionality or aesthetics.

The above and other objects, features, and advantages of the present invention and the manner of realizing them will become more apparent, and the invention itself will best be understood from a study of the following description with reference to the attached drawings showing some preferred embodiments of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated herein and constitute part of this specification, illustrate the presently preferred embodiments of the invention, and together with the general description given above and the detailed description given below, serve to explain features of the invention.

Figure 1a shows a front view of the closed bag.

Figure 1b shows a back view of the closed bag.

Figure 2a depicts a view of the open bag, laid flat, with the exterior side facing up.

Figure 2b depicts a view of the open bag, laid flat, with the interior side facing up.

Figure 3 illustrates the magnet positioning in the three-layer material system of the flexible structure.

Figure 3a shows the pattern of the inner layer referred to as material or fabric A.

Figure 3b shows the pattern of the outer layer referred to as material or fabric B.

Figure 4 illustrates the magnet positioning in the reinforcing framework or plastic frame referred to as type C configuration.

Figure 4a shows the reinforcing framework or plastic frame in the type C configuration.

Figure 4b depicts the arrangement of magnets for the type C reinforcing framework or plastic frame.

Figure 4c shows the thin plastic plate used to hold magnets in the type C reinforcing framework or plastic frame.

Figure 5 illustrates the magnet positioning in the reinforcing framework or plastic frame referred to as type D configuration. Figure 5a shows the reinforcing framework or plastic frame in the type D configuration.

Figure 5b depicts the arrangement of magnets for the type D reinforcing framework or plastic frame.

Figure 5c shows the thin plastic plate used to hold magnets in the type D reinforcing framework or plastic frame.

Figure 6a illustrates the location of type C reinforcing frameworks or plastic frames, positioned between the inner layer and outer layer, in an open bag view.

Figure 6b illustrates the location of type D reinforcing frameworks or plastic frames, positioned between the outer layer and the folded return, in an open bag view.

Figure 7 shows the overall positioning of all reinforcing frameworks or plastic frames in the closed bag view. This figure does not depict the layer placement but provides an overview of the framework arrangement.

Figure 8 illustrates the top opening of the bag without fully unfolding it, showing its functionality as a worktop.

Figure 9 depicts all the portability accessories available for the bag.

Figure 9a shows the handle accessory attached to the bag, transforming it into a briefcase.

Figure 9b shows the short shoulder strap accessory attached to the bag, transforming it into a tote bag.

Figure 9c illustrates the long adjustable shoulder strap accessory attached to the bag, transforming it into a messenger bag.

Figure 9d illustrates the double adjustable shoulder strap accessory attached to the bag, transforming it into a backpack. Figure 10 depicts the central module of the portability accessories, with magnets and their placement shown from front and back views.

Figure 11 shows the bag accessorized with an adjustable shoulder strap and a hook-on pouch.

Figure 12 illustrates how to join the integrated pairs of loops on each side of the bag using a keyring clasp.

Figure 12a shows how an integrated pair of loops is positioned before manipulation.

Figure 12b depicts the manipulation process using fingers to fold the material that prevents the loops from joining.

Figure 12c illustrates how the loops are positioned relative to each other after manipulation.

Figure 12d shows how to attach the keyring clasp to a pair of loops.

Figure 13 depicts how to use the bag’s slot for hand-carrying without accessories.

Figure 13a illustrates how to fold the material inside the bag that blocks the slot for more comfortable hand-carrying.

Figure 13b shows the bag being carried without folding the material inside the slot.

Figure 13c depicts the bag being carried after folding the material inside the slot for more comfortable hand-carrying.

Figure 14 illustrates how to open the sides of the bag when a portability accessory blocks the top opening.

Figure 14a depicts a partially opened side with a portability accessory blocking the top opening.

Figure 14b shows a fully opened side under similar circumstances. Figure 14c illustrates how the bottom gap allows side access when a portability accessory blocks the top opening.

Figure 15 depicts the use of small magnetic side accessories.

Figure 15a shows how to attach these side accessories.

Figure 15b illustrates the placement of the side accessories visible on the outside.

Figure 15c depicts the placement of the side accessories folded inside for discreet storage.

Figure 16 shows the placement of magnets in the small side accessories and their positioning on the bag.

Figure 17 depicts how to attach a hook-on pouch via a slot created by cutting the material.

Figure 17a illustrates how to insert the hook into the slot.

Figure 17b shows how the hook-on pouch appears once attached to the bag.

Figure 18 depicts the two types of hook-on pouches attached to the bag.

Identical reference numerals are used, where possible, to designate identical elements that are common throughout the figures. Also, the images are simplified for illustration purposes and may not be depicted to scale.

DETAILED DESCRIPTION OF THE INVENTION

The subject-matter described in the following will be clarified by means of a description of those aspects which are depicted in the drawings. It is however to be understood that the scope of protection of the invention is not limited to those aspects described in the following and depicted in the drawings; to the contrary, the scope of protection of the invention is defined by the claims. Moreover, it is to be understood that the specific conditions or parameters described and/or shown in the following are not limiting of the scope of protection of the invention, and that the terminology used herein is for the purpose of describing particular aspects by way of example only and is not intended to be limiting.

Unless otherwise defined, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, unless otherwise required by the context, singular terms shall include pluralities, and plural terms shall include the singular. The methods and techniques of the present disclosure are generally performed according to conventional methods well known in the art and as described in various general and more specific references that are cited and discussed throughout the present specification unless otherwise indicated.

The present disclosure concerns a convertible bag 1 as depicted in Figures 1 to 18.

The convertible bag 1 comprises a flexible structure 2 formed by at least one layer of sheet material 3a, 3b or flexible fabric.

The flexible structure 2 is formed by at least one layer of sheet material, which provides the foundational flexibility and adaptability of the convertible bag 1. The sheet material 3a, 3b may be selected from various materials, including synthetic polymers, natural fabrics, or composite materials, chosen for their combination of flexibility, resilience, and durability. Preferentially, the sheet material 3a, 3b is made of leather or vegan leather, offering advantages such as enhanced durability, natural flexibility, and a premium aesthetic appeal, making the bag suitable for both functional and professional use.

The geometry of the flexible structure 2 may include a generally planar shape, and in some embodiments, it can take a rectangular, square, or other polygonal form. The edges of the flexible structure 2 may be straight or slightly curved to enhance its ability to fold, bend, or conform to different configurations of the bag.

The sheet material 3a, 3b may have a uniform thickness or a variable thickness, allowing certain areas to offer greater flexibility or strength depending on functional needs.

The flexible structure 2 is designed to serve as the main body of the bag 1 , transitioning seamlessly between a closed position, where it forms at least one internal hollow space 6, and an open position, where it lies flat. The shape and flexibility of the structure 2 also enable it to adapt to various carrying modes or alternative uses, such as functioning as a desk pad or work surface.

The flexible structure 2 can be bent or folded along specific areas to facilitate the transformation of the bag 1 into its closed position. For example, when the flexible structure 2 has a generally rectangular shape, it can be bent along a central area or a symmetrical axis of the rectangle, creating a fold that allows the structure 2 to form an enclosed internal hollow space 6 for transporting the user belongings. This ability to bend enables the bag 1 to transition smoothly between its open and closed configurations, maintaining its structural integrity while adapting to various usage scenarios. The bending characteristics of the flexible structure 2 may result from the material inherent flexibility, combined with its geometry, allowing it to accommodate the functional needs of the convertible bag 1.

The convertible bag 1 comprises a closure mechanism 5 configured to securely close the bag 1 , particularly when the bag is in the closed position. The closure mechanism 5 interacts with the flexible structure 2, ensuring that the internal hollow space 6 is enclosed and the contents of the bag 1 are securely retained during use.

The closure mechanism 5 may include complementary parts arranged on specific areas of the flexible structure 2, such as on opposite edges. For example, when the flexible structure 2 is bent or folded along a central axis or a designated fold line, these concordant or complementary parts come close to or into contact with each other, enabling the bag 1 to close securely. The parts of the closure mechanism 5 in contact along the edges provide a reliable seal, ensuring that the flexible structure 2 maintains its closed configuration and the internal hollow space 6 remains enclosed.

The closure mechanism 5 can be positioned along various edges of the flexible structure 2, depending on the design and intended use of the bag 1. In one embodiment, the closure mechanism 5 may be arranged along the top edges of the flexible structure 2 to facilitate easy access to the bag contents. Alternatively, the closure mechanism 5 may be positioned along the lateral edges or extend around every edge of the flexible structure 2, providing a comprehensive closure for the entire bag. This flexibility in placement ensures that the closure mechanism 5 can be adapted to different configurations and user requirements and offers different degrees of closure or strength of closure of the internal hollow space 6. By aligning the concordant or complementary parts and allowing them to interact seamlessly, the closure mechanism 5 enhances the practicality and usability of the convertible bag 1 , ensuring secure containment of the contents while complementing the flexibility and adaptability of the flexible structure 2.

The closure mechanism 5 may include various types of interacting parts configured to securely close the bag 1 when the flexible structure 2 is in the closed position. For instance, the closure mechanism 5 can comprise magnets positioned along opposite edges of the flexible structure 2. When the flexible structure 2 is bent or folded, the magnets are brought into alignment and create a magnetic attraction, securely closing the bag 1. In other examples, the closure mechanism 5 may include complementary mechanical fasteners, such as hooks and loops, snap buttons, zippers, or Velcro strips, positioned along the edges of the flexible structure 2. Velcro strips, for example, can be affixed to the top or lateral edges of the flexible structure 2, enabling a strong yet easily adjustable closure. These interacting components can be arranged on the top edges, lateral edges, or extend around the entire perimeter of the flexible structure 2.

The convertible bag 1 may further comprise a reinforcing framework 4 or plastic frame or rigid skeleton arranged along at least one outer edge of the flexible structure 2.

The reinforcing framework 4 is configured to provide structural support to the flexible structure 2, enabling the bag 1 to maintain its shape when in use or reinforcing the bag 1.

This reinforcing framework 4 may be integrated into or attached at least to one or a plurality or all the edges of the flexible structure 2 and can extend partially or continuously along one or more edges, depending on the functional requirements.

The reinforcing framework 4 may comprise rigid or semi-rigid elements, such as plastic bars, metal rods, or composite materials, that have the effect of enhancing the overall stability of the bag 1.

In some embodiments, the reinforcing framework 4 can follow the geometry of the flexible structure 2, such as a rectangular, square, or polygonal outline. The edges of the reinforcing framework 4 can be straight or curved, enabling the bag 1 to transition smoothly between configurations, such as the open position where the structure lies flat or the closed position where it is bent.

To facilitate the bending of the flexible structure 2, certain portions of the structure, particularly those located along the designated folding or bending areas, may be free of the reinforcing framework 4. For example, a gap or absence of the framework 4 in these regions can enable the flexible structure 2 to fold or bend without resistance, allowing the bag 1 to transition smoothly between its open and closed positions. Alternatively, the framework 4 may include joints, hinges, or flexible segments that align with the bending areas of the flexible structure 2, providing additional adaptability while maintaining structural integrity along other parts of the bag.

The reinforcing framework 4 may also be segmented or modular, allowing certain sections to fold or pivot in coordination with the flexible structure 2. This feature enables the reinforcing framework 4 to support the transformation of the bag 1 between its open and closed positions without compromising flexibility. Furthermore, the reinforcing framework 4 can enable the mounting of other functional components of the bag 1 , such as the closure mechanism 5 or modular accessories.

The inclusion of the reinforcing framework 4 has the effect of enhancing the bag durability and functionality, enabling it to withstand repeated use, carry heavier loads, and retain its intended shape across different configurations. Its structure ensures a balance between rigidity and flexibility, making the convertible bag 1 suitable for both professional and casual use.

The reinforcing framework 4 may be for example of two type as depicted in Figures 4 and 5.

The reinforcing framework 4 may include structural elements positioned along the edges of the flexible structure 2 to provide additional support and functionality. In some embodiments, the reinforcing framework 4 may comprise components that include at least one integrated handle 101 positioned at the ends of the bag 1 , which overlap when the bag 1 is in the closed position 102. These handles enhance user convenience and carrying options. Alternatively, the reinforcing framework 4 may include straight segments, which may be arranged in pairs along the lateral edges of the bag 1. For example, the framework 4 may include two segments on the left side 103 and two on the right side 104, separated by a space 105 to facilitate folding or bending of the flexible structure 2. These segments may also overlap when the bag 1 is in the closed position 106, contributing to the secure configuration of the bag 1 (Figure 7).

In certain configurations, the reinforcing framework 4 may be positioned along the sides of the bag 1 (Figure 6a) or arranged to extend partially or fully along specific edges, depending on the desired functionality and structural requirements.

The first type (type C frames) (Figure 4a) comprises at least one integrated handles at the ends of the bag 101 , overlap when the bag is closed 102.

The second type (type D frames (Figure 5), which are simple straight lines.

Two C-type frames may be positioned on either side of the bag (Fig. 6a) and also overlap when the bag is closed (Fig. 7).

Type D frames may be placed in pairs on each side (Figure 6b), two on the left 103, two on the right 104 of the bag with a space in between 105, and overlap when the bag is closed (Figure 7) 106.

The closure mechanism 5 may be arranged on or within or in the reinforcing framework 4.

In certain embodiments, the closure mechanism 5 may align with areas of the reinforcing framework 4 that are continuous, ensuring a secure connection along the edges.

Alternatively, the closure mechanism 5 may be positioned in areas where the reinforcing framework 4 includes gaps or flexible segments, allowing the closure mechanism 5 to operate effectively in conjunction with the bending or folding of the flexible structure 2.

The closure mechanism 5 may also be integrated or embedded in the reinforcing framework, which comprises cavity or recess to house the closure mechanism 5. In a preferred embodiment, the closure mechanism 5 comprises at least one magnet 107. The magnet 107 may be positioned along a specific area of the flexible structure 2, such as an edge that aligns when the bag 1 transitions to its closed position. The at least one magnet may also be arranged on or within the reinforcing framework 4. This configuration ensures that the magnet 107 facilitates the secure closing of the bag 1 , maintaining the internal hollow space 6 in an enclosed state.

Opposite the magnet 107, the flexible structure 2 includes either a magnetic part or another magnet with an inverse polarity. In the case of a second magnet, the inverse polarity ensures a direct magnetic attraction between the two components, creating a strong and reliable closure.

Alternatively, the opposing part of the closure mechanism 5 may consist of a metallic or magnetically receptive material, such as a steel plate or similar element. This material is positioned to align with the magnet 107 and enable the closure without requiring a second magnet.

In embodiments where the closure mechanism 5 includes magnets 107, the complementary parts may consist of one magnet on one edge and either a second magnet with inverse polarity or a metallic, magnetically receptive element on the opposite edge. When the flexible structure 2 is bent or folded, the magnetic attraction between these complementary parts ensures a secure closure, holding the edges together reliably and maintaining the closed configuration or position of the convertible bag 1 .

In an embodiment, the closure mechanism 5 may comprise a plurality of magnets 107 spaced apart along specific edges of the flexible structure 2.

The magnets 107 may be arranged at a predetermined distance from one another, configured to modulate the closing strength of the closure mechanism 5 by varying the magnetic attraction along the edges. This spacing may allow the magnetic forces to be distributed evenly or concentrated in specific areas, depending on the desired functionality of the bag 1.

Such an arrangement may provide a balance between a secure closure and ease of opening. For example, the spacing of the magnets 107 may reduce excessive magnetic attraction, ensuring that the bag 1 can be opened without undue effort while still maintaining reliable closure strength to protect the contents within the internal hollow space 6. The placement and spacing of the magnets 107 may also be adapted to the geometry and size of the bag 1 , ensuring compatibility with its various configurations, such as the closed position or the open position where the flexible structure 2 lies flat.

When the closure mechanism 5 includes one or more magnets 107, the components of the closure mechanism 5 may be arranged on different parts of the flexible structure 2 such that, when the bag 1 is bent or folded, these components align and interact to enable the closure to function effectively.

This configuration may enhance the versatility of the closure mechanism 5, enabling it to accommodate different user needs and usage scenarios while maintaining the functionality and adaptability of the convertible bag 1.

The reinforcing framework 4 may comprise at least one plastic frame. The plastic frame may be arranged along one or more edges of the flexible structure 2 to provide structural support and maintain the shape of the bag 1. The plastic frame may be made of rigid or semi-rigid plastic materials, such as polypropylene, ABS, or polycarbonate, and may extend partially or continuously along the edges depending on the functional requirements of the bag 1.

In some embodiments, the reinforcing framework 4 may further comprise a shielding element 7 configured to reduce magnetic attraction in a predetermined direction. The shielding element 7 may be positioned adjacent to or integrated with the reinforcing framework 4 or plastic frame to selectively influence the magnetic field generated by the closure mechanism 5 arranged next to, on or within the reinforcing framework 4.

The shielding element 7 may be made of non-magnetic materials, such as plastic or composite materials, or of magnetic shielding materials, such as ferromagnetic alloys, Mumetal, or specialized steel grades. The choice of material may depend on the desired level of shielding and the specific configuration of the closure mechanism 5. For instance, a plastic shielding element may provide basic redirection of the magnetic field, while metallic shielding materials may offer enhanced control of magnetic attraction. The shielding element 7 may be arranged to reduce magnetic attraction in one or more specific directions, such as away from the edges of the flexible structure 2 or towards external objects. Its placement within the reinforcing framework 4 ensures that the shielding element 7 can interact effectively with the closure mechanism 5 without interfering with other components of the bag 1 .

The shielding element 7 may be arranged in a direction opposite to the direction where the magnet 107 come into contact with the corresponding magnet of the flexible structure 2, when the convertible bag 1 is in the closed position.

The shielding element 7 reduces or influences the magnetic field by redirecting or attenuating the magnetic flux in specific directions. This can be achieved through its material properties, such as the high magnetic permeability of ferromagnetic alloys, which allow the magnetic field to be concentrated and guided away from undesired areas. Alternatively, nonmagnetic materials like plastics or composites can act as barriers to dampen the field intensity. The advantage of this configuration is that it minimizes unwanted magnetic interactions, such as adherence to external metal surfaces, while maintaining the effective operation of the closure mechanism 5.

The at least one layer of sheet material 3a, 3b of the flexible structure 2 may form a folded return defining a space. This space may accommodate the reinforcing framework 4, which may be arranged entirely or partially within the folded return. This arrangement ensures that the reinforcing framework 4 remains integrated within the flexible structure 2 without protruding externally, providing structural support while maintaining the flexibility of the bag 1.

The bag or convertible bag 1 , which may also be used as a blotter (figure 1a for the closed bag) (figure 1 b for the closed bag on the other side) (figure 2a for the open bag in worktop mode) (figure 2b for the open bag in worktop mode on the other side), may comprise two types of sheet material 3a, 3b.

The at least one layer of sheet material 3a, 3b may further comprise an inner layer 3a and an outer layer 3b. These layers may be made from same or different materials, with the inner layer 3a being composed of a first material and the outer layer 3b of a second material. The first material may be thicker and/or more durable, providing structural strength to the flexible structure 2, while the second material may be thinner and designed to offer flexibility or aesthetic appeal.

For example, the outer layer 3b, corresponding to "fabric B," may be made from materials such as polyurethane, polyester, or lightweight fabrics, which are generally less than 1 mm thick. These thinner materials contribute to the flexibility and visual refinement of the bag 1 , allowing for aesthetic customization. The inner layer 3a, corresponding to "fabric A," may be made of materials such as leather, synthetic leather, or heavy-duty fabrics like canvas or nylon. These materials typically have a thickness between 3 and 5 mm, offering durability and resistance to wear.

In certain embodiments, the outer layer 3b may be folded over at least one edge of the inner layer 3a to form a third layer 3c. This configuration creates at least one multi-layered edge in the flexible structure 2, enhancing its durability and resistance to wear. The multi-layered edge may also contribute to the structural rigidity of the flexible structure 2, allowing the bag 1 to maintain its form during repeated use.

The construction may involve cutting the outer layer 3b (fabric B) larger than the inner layer 3a (fabric A) in both horizontal and vertical dimensions. The edges of the outer layer 3b may then be folded over the inner layer 3a to form a bordered edge, creating a three-layer structure comprising an outer layer (layer 1), an intermediate layer (layer 2), and an inner folded layer (layer 3). This technique enhances the strength and durability of the flexible structure 2 while providing opportunities for integrating additional features.

For construction, fabric B is for example cut larger than fabric A both horizontally and vertically. During assembly, fabric A is placed over fabric B, then the edges of fabric B are folded over fabric A, creating a 2 border all around (100). This manufacturing technique creates a three-layer structure (layers 1 , 2, 3) on the edges of the bag (figure 3): an outer layer of fabric B (layer 1), an intermediate layer of fabric A (layer 2), and an inner layer of folded fabric B (layer 3).

For construction, fabric B may comprise an excess of 5 centimeters both horizontally and vertically. During assembly, fabric A is placed over fabric B, then the edges of fabric B are folded over fabric A, creating for example a 2.5-centimeter border all around (100). This manufacturing technique creates a three-layer structure (layers 1 , 2, 3) on the edges of the bag (figure 3): an outer layer of fabric B (layer 1), an intermediate layer of fabric A (layer 2), and an inner layer of folded fabric B (layer 3).

In certain embodiments, the exterior surface of the outer layer 3b or the outer layer may comprise an anti-slip layer 137. This anti-slip layer 137 enhances the stability of the bag 1 when placed on smooth surfaces, preventing unintended movement during use.

The closure mechanism 5 may be arranged on or within the at least one multi-layered edge of the flexible structure 2. For instance, the closure mechanism 5 may be positioned between the inner layer 3a and the outer layer 3b or between the inner layer 3a and the third layer 3c. This integration provides a seamless and secure closure for the bag 1 while preserving the aesthetic and functional integrity of the flexible structure 2.

Each reinforcing framework 4 (e.g., C-type or D-type) may comprise at least one group of magnets 107, each measuring, for example, 2x20x10 mm (Figure 4b/5b), strategically distributed along specific areas of the bag 1. The spacing between each group of magnets 107 is precisely defined to optimize the firmness and flexibility of the closure mechanism 5 (108). The reinforcing framework 4 may be the same thickness as the magnets 107 and, for example, 15 mm wide (Figure 4/5).

The reinforcing framework 4 may further comprise a plastic plate (Figure 4c/5c), arranged either above or below the framework, to reinforce the magnetic attraction. This plate may be bonded to the reinforcing framework 4 with a flexible adhesive 109, allowing for secure placement and easy handling of the bag 1 .

The rigid reinforcing framework 4 (e.g., C-type or D-type) comprising the magnets or groups of magnets 107 (Figure 4/5) may be strategically arranged between the layers of the flexible structure 2.

For example, the framework 4 may be positioned between layers 1 and 2 or between layers 2 and 3 of the flexible structure 2 (Figure 6a/6b). In certain configurations, the D-type framework 4 may be arranged between layers 2 and 3 (Figure 6b), with the plastic plate bonded (Figure 5c) on the side facing layer 2. This arrangement maximizes the internal magnetic force when closing the bag 1 , while minimizing the external magnetic force. As a result, while the internal magnetic force remains strong, the external force is significantly attenuated, preventing the bag 1 from inadvertently adhering to metal surfaces such as elevator doors or metal bars. In comparison, the C-type framework 4 may be positioned between layers 1 and 2 (Figure 6a), with the plastic plate arranged on the side of layer 2 (Figure 4c). This configuration reduces the magnetic force when closing the bag 1 , while enabling easy and secure attachment of magnetic accessories.

This innovative arrangement of the reinforcing framework 4, incorporating magnets, enhances the bag functionality. For example, in the C-type configuration (Figure 4), the magnetic force may be intentionally attenuated inwards (Figure 6a). When combined with the strong inward magnetic force of the D-type configuration (Figure 5) along the sides, this arrangement creates a balance between security and accessibility (Figure 6b). As a result, the bag 1 closes firmly and securely while remaining easily openable from above (Figure 8).

This design allows for easy access to objects inside the bag 1 (Figure 8). The user can open the bag 1 with ease. This ease of opening, combined with the secure closure, makes the bag 1 practical for daily use, whether for professional activities or more casual outings. The reinforcing framework 4 (e.g., C-type configuration in Figure 4) plays a key role in achieving this intuitive opening and closing mechanism, ensuring both the security of the items contained and optimal accessibility (Figure 8).

In an embodiment, the spacing (110) and orientation of the magnets within the reinforcing framework 4 (e.g., C-type configuration in Figure 4) may facilitate compatibility with various magnetic accessories. Magnets positioned at specific locations, such as positions 111 and 112, play an essential role in this modularity. Positioned in opposite directions (e.g., one facing north-south 111 and the other south-north 112), these magnets enable the bag modular portability accessories to be attached in two different orientations. This configuration ensures perfect adhesion of the accessories, achieved through identical spacing between the magnets 110 on the bag 1 and those on the accessories 113. The reinforcing framework 4 may comprise one or several magnets 107 strategically positioned to provide secure closure and compatibility with other components of the bag 1 . These magnets may be arranged along specific areas of the framework 4, such as edges or corners, depending on the functional requirements of the bag 1 . The positioning of the magnets ensures reliable magnetic attraction, contributing to the effective operation of the closure mechanism 5.

The placement of the magnets 107 may be configured to balance closure strength and ease of use. The magnets may be evenly spaced or grouped in specific regions to optimize their magnetic force based on the bag geometry and intended use. This arrangement may allow the bag 1 to securely close while enabling smooth opening and accessibility when needed.

In certain configurations, the magnets 107 may be integrated into the reinforcing framework 4 and aligned with corresponding elements on the flexible structure 2. This alignment ensures a seamless interaction between the closure mechanism 5 and other structural components, maintaining the integrity and functionality of the bag 1 across its various configurations.

The convertible bag 1 may further comprise at least one modular accessory 8 that is removably attachable to the bag 1. These modular accessories 8 may provide additional functionality or customization options for the user, such as alternative carrying modes or expanded storage capacity.

The at least one modular accessory 8 may include a first attachment system, and the convertible bag 1 may include a second attachment system. These attachment systems are configured to enable the removable attachment of the modular accessory 8 to the bag 1. The attachment systems may comprise one or several magnets 107, 111 , 112, which ensure secure attachment while allowing for easy removal and reconfiguration of the modular accessory 8.

The first and second attachment system may be magnetic docking area 131 located on the sides of the reinforcing framework 4. This docking area 131 is designed for attaching external accessories 132, 133, which may be secured using magnets configured with an outward-facing magnetic field. This configuration allows for easy attachment and detachment of external accessories, enhancing the modularity of the bag 1. The flexible structure 2 may further comprise two holes arranged at opposite lateral extremities. These holes are configured such that, when the bag 1 is in the closed position, they align to form a handle area 11. The handle area 11 may include a foldable portion 12, which provides a comfortable grip for carrying the bag 1.

The convertible bag 1 may include an alternative opening system 9 comprising a corner flap mechanism 129. The corner flap mechanism 129 may be configured to fold outward, providing quick and direct access to the internal hollow space 6 without the need to fully open the bag 1. This feature enhances the practicality of the bag 1 by allowing users to retrieve items quickly and conveniently.

The flexible structure 2 may also include rings 126 arranged on its edges. These rings 126 are configured to accommodate hooks 125 of one or several adjustable straps 125, enabling the bag 1 to be carried in different modes, such as over the shoulder or as a backpack.

Portability accessories can be attached in an ingenious way: half of them (115) are inserted into the slot of the integrated handle (114), then folded over to the other side (116). The magnets then ensure a firm, secure hold. Even when loaded, this method prevents the bag from falling out, as the accessories are folded upwards (fig. 9a/9b/9c/9d). Four portability accessories (figure 9), all based on the same design (figure 10), are available, each offering a different mode of transport:

1. Briefcase mode (figure 9a): This accessory transforms the bag into an elegant briefcase. It consists of two sturdy, ergonomic handles (117), sewn onto a central support which corresponds to the design shown in figure 10. These handles are inserted into the integrated slots (114) of the C-frames (figure 19), then folded and magnetically secured, creating a single, comfortable handle for ha nd- carrying.

2. Tote mode (figure 9b): Similar to the briefcase mode in its attachment, this accessory incorporates two long straps (118). These straps, sewn onto the same support (119) as the briefcase mode (figure 10), enable the bag to be carried over the shoulder, like a traditional tote bag. 3. Messenger mode (figure 9c): Four metal rings (120) are integrated into the four corners of the support shown in figure 10. Once this accessory has been secured by the slots in the integrated handles (114), these rings overlap two by two (121), providing two anchoring points for a long, adjustable strap (123). The user can then attach the strap to the pairs of rings (122) to carry the bag over the shoulder or across the body, typical of the messenger style (figure 11).

4. Backpack mode (figure 9d): Using the same principle as messenger mode, this accessory differs by adding two adjustable straps (124), each with hooks at its ends (125). One side of each strap is attached to the rings (122) of the accessory (Fig. 10), while the other side is attached to the integrated rings (126) located on the lower part of the bag sides (Fig. 12). The fabric A (Fig. 12a) protruding into the corner (Fig. 12b) of the closed bag (127) may be folded back to connect the two rings integrated into the bag (Fig. 12c). This transforms the bag into a comfortable backpack (figure d), with adjustable straps for a customized fit (128).

The placement of magnets (111/112) on the accessories and the bag ensures that, whichever mode is chosen, the accessories remain firmly attached, providing security and stability. This magnetic modularity facilitates rapid styling changes without compromising the bag functionality or aesthetics.

The bag-integrated rings (126), used for backpack mode (figure 9d), are aligned with the D- type structures on the sides of the bag (figure 6b). Their width and thickness match those of the structures, ensuring uniformity when the bag is open and flat (figure 2a/2b). They are invisible when the bag is open on fabric side A (figure 2a).

Finally, the bag also offers the possibility of being carried without carrying accessories (figure 13). The integrated handle (114), formed by C-type plastic structures (figure 4) with slots on both sides and above (114), offers a comfortable grip thanks to the soft fabric (127) (figure 13b). Alternatively, this fabric can be folded (figure 13a) towards the inside of the bag and held by the magnets of the C-type structures (figure 13c), creating a large opening for the hand to slip through (128), offering another convenient method of carrying the bag.

When the portability accessories are attached to the bag, they block access from above. However, a clever design allows easy access to the contents of the bag without having to remove these accessories (figure 14). Two methods are provided for this purpose: 1. Opening through the Angles (figure 14a): The bag can be opened by unfolding one of its corners (129). This method offers direct, convenient access to the items contained in the bag (figure 14b), making it easy to remove or add items without disturbing the configuration of the portability accessories.

2. Bottom access (figure 14c): By simply sliding a finger from the bottom of the bag (130), the user can open the bag to access its contents (figure 14b), offering a quick and discreet alternative.

In addition, magnets located on the sides (131) of the C-type reinforcing framework 4 or plastic frame (figure 6a), specially designed to be powerful outwards, enable additional accessories to be attached (figure 15). These magnets are grouped in a minimum of 2 (131), ensuring reliable adhesion of the accessories, irrespective of the orientation of the accessories' magnets. The side accessories (figure 16), equipped with two insulated magnets (132/133), can be folded down on either side of the bag (figure 15a/15b), reducing the risk of detachment or falling out. Furthermore, as shown in figure 15c, these accessories can also be folded towards the inside of the bag, between the two C-type structures, making them less visible but still easily accessible.

Finally, the area beneath the bag integrated handle (figure 17) has a unique feature: a small fold (134) designed to accommodate hooked accessories (figure 18). This fold is formed by folding over a portion of fabric B, then sewing it (134) to maintain its position. This structure creates a small hole (135), whose diameter varies between 0.5 mm and 2 cm, enabling accessories to be easily inserted (figure 17a/17b).

The bag according to the present disclosure may comprise a part or all the above described features enabling the connection of portability accessories or hooked accessories to the bag.

While the invention has been disclosed with reference to certain preferred embodiments, numerous modifications, alterations, and changes to the described embodiments, and equivalents thereof, are possible without departing from the sphere and scope of the invention. Accordingly, the invention is not limited to the described embodiments and be given the broadest reasonable interpretation in accordance with the language of the appended claims.

The present description is neither intended nor should it be construed as being representative of the full extent and scope of the present invention. The present invention is set forth in various levels of detail herein as well as in the attached drawings and in the detailed description of the invention and no limitation as to the scope of the present invention is intended by either the inclusion or non-inclusion of elements, components, etc. Additional aspects of the present invention have become more readily apparent from the detailed description, particularly when taken together with the drawings.

Claims

1. A convertible bag (1) comprising a flexible structure (2) formed by at least one layer of sheet material (3a, 3b), a closure mechanism (5), wherein the bag (1) comprises a closed position in which the flexible structure (2) is bent creating at least one internal hollow space (6) and an open position in which the flexible structure (2) is straight creating a flat surface.

2. The convertible bag (1) according to claim 1 , wherein the bag (1) comprises a reinforcing framework (4) arranged along at least one outer edge of the flexible structure (2) and comprising the closure mechanism (5),

3. The convertible bag (1) according to any of the preceding claims, wherein the closure mechanism (5) comprises at least one magnet (107).

4. The convertible bag (1) according to claim 3, wherein the at least one magnet (107) is arranged on or within the reinforcing framework (4).

5. The convertible bag (1) according to claims 3 and 4, wherein the closure mechanism (5) comprises a plurality of magnets (107) spaced apart by a predetermined distance configured to modulate the closing strength of the closure mechanism (5) by varying the magnetic attraction.

6. The convertible bag (1) according to any of the preceding claims 2 to 5, wherein the reinforcing framework (4) comprises a plastic frame (7).

7. The convertible bag (1) according to any of the preceding claims 2 to 5, wherein the reinforcing framework (4) comprises a shielding element (7) configured to reduce the magnetic attraction in a predetermined direction.

8. The convertible bag (1) according to any of the preceding claims 2 to 7, wherein the at least one layer of sheet material (3a, 3b) forms a folded return defining a space, wherein the reinforcing framework (4) is arranged within the space.

9. The convertible bag (1) according to any of the preceding claims, wherein the at least one layer of sheet material (3a, 3b) comprises an inner layer (3a) made of a first material and an outer layer (3b) made of a second material.

10. The convertible bag (1) according to claim 9, wherein the first material is thicker than the second material.

11. The convertible bag (1) according to claims 9 and 10, wherein the outer layer (3b) is folded over at least one edge of the inner layer (3a) to form a third layer (3c) and at least one multi-layered edge of the flexible structure (2).

12. The convertible bag (1) according to claim 10, wherein the closure mechanism (5) is arranged on or within the at least one multi-layered edge of the flexible structure (2) between the inner layer (3a) and outer layer (3b) and/or between the inner layer (3a) and the third layer (3c).

13. The convertible bag (1) according to any of the preceding claims, wherein the bag (1) comprises at least one modular accessory (8) removably attachable to the convertible bag (1).

14. The convertible bag (1) according to claim 13, wherein the at least one modular accessory (8) comprises a first attachment system and the convertible bag (1) comprises a second attachment system, the first and second attachment system being configured to removably attach the at least one modular accessory (8) to the convertible bag (1).

15. The convertible bag (1) according to claim 14, wherein the first and second attachment systems comprises one or several magnets (107, 111 , 112).

16. The convertible bag (1) according to any of the preceding claims, wherein the flexible structure (2) further comprises two holes arranged at opposite lateral extremities of the flexible structure (2) such that in the closed position, the holes are concomitant and create a handle area (11) with a foldable portion (12).

17. The convertible bag (1) according to any of the preceding claims, wherein the convertible bag (1) comprises an alternative opening system (9) comprising a corner flap mechanism (129), the corner flap mechanism (129) being configured to fold outward to provide quick and direct access to the internal hollow space (6) without the need to fully open the bag (1).

18. The convertible bag (1) according to any of the preceding claims, wherein the flexible structure (2) comprises rings (126) arranged on the edges of the flexible structure to accommodate hooks (125) of one or several adjustable straps (125).

19. The convertible bag (1) according to any of the preceding claims, wherein the bag (1) includes a magnetic docking area (131) on the sides of the frame (4) for attaching external accessories (132, 133), which are secured with magnets having an outwardfacing magnetic field.

20. The bag (1) according to any of the preceding claims, wherein an exterior surface of the outer layer (3b) comprises an anti-slip layer (137).