Combination Bag

This application claims priority to U.S. Provisional Application No. US 63/568,492, entitled “Combination Bag” filed on Mar. 22, 2024, which is hereby incorporated by reference herein as if set forth in its entirety.

The invention relates to a bag, and in particular relates to a combination bag.

A carrying bag provides suitable storage space or compartments for users to carry and organize their belongings. Depending on different application scenarios and design orientations, bag may come in various styles. For instance, there are backpacks with two shoulder straps, known as double-shoulder backpacks, as well as those with only one shoulder strap, known as single-shoulder sling bags that can be worn diagonally across the shoulder.

Specifically, the two shoulder straps of a double-shoulder backpack evenly distribute the weight on both shoulders while keeping the backpack centered on the back, thus providing users with comfortable carrying experience. This design is well-suited for activities that involve carrying a larger volume of items.

On the other hand, single-shoulder sling bags can be easily shifted from the back to the front of the body, allowing quick access to belongings. Additionally, due to having only one shoulder strap, single-shoulder sling bags are relatively lightweight and offer more freedom of movement, making them suitable for casual occasions with smaller carrying needs.

To cater to the requirements of different activity scenarios, there are some combination-style or convertible bag that combine elements of both single-shoulder sling bags and double-shoulder backpacks. However, these bags often have limitations and drawbacks, making it difficult to fully meet practical usage needs. For example, some combination-style bags sacrifice the capacity of double-shoulder backpacks to accommodate the single-shoulder sling bag component. They may also lack a sufficient number of functional compartments or pockets, causing inconvenience during regular use.

The present invention provides a combination bag. The combination bag includes a sling bag and a backpack with an interior space, wherein the sling bag includes a flat-shaped bag body with a first surface and a second surface facing away from each other, wherein the flat-shaped bag body is foldable; a rigid support structure embedded within the flat-shaped bag body, symmetrically arranged along a fold line of the flat-shaped bag body; a shoulder strap attached to the flat-shaped bag body; at least two bag components, wherein one bag component is positioned on the second surface of the bag body, for forming an independent storage compartment, and an opening of the storage compartment is located away from the fold line; and the interior space is defined by a first wall, a second wall opposite the first wall, and a continuous side wall connecting the first and second walls; wherein the first wall has an area approximately equal to that of the flat-shaped bag body, and flat-shaped bag body is detachably fixed within the interior space by a connecting component; when the flat-shaped bag body is fixed inside the interior space, the first surface of the flat-shaped bag body is in close contact with the first wall.

At least one advantageous aspect of the present invention is that: in the combined state of the single-shoulder sling bag and the double-shoulder backpack, the pockets and functional compartments of the single-shoulder sling bag are fully exposed within the storage space, providing ample pockets and functional compartments for the double-shoulder backpack. Moreover, the flat shape of the unfolded single-shoulder sling bag helps minimize space occupation, ensuring that the double-shoulder backpack has sufficient storage space.

For the purpose of facilitating understanding of the present application, detailed explanations will be provided in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as “fixed to” another element, it can be directly on the other element, or there may be one or more intermediate elements between them. When an element is described as “connected to” another element, it can be directly connected to the other element, or there may be one or more intermediate elements between them. The terms “upper,” “lower,” “inner,” “outer,” “bottom,” etc., used in this specification to indicate positional relationships or orientations are based on the orientations or positional relationships shown in the drawings, solely for the purpose of facilitating the description and simplifying the description, and should not be construed as indicating or implying that the devices or elements referred to must have specific orientations, be constructed and operated in specific orientations. Therefore, they should not be understood as limiting the present application. In addition, the terms “first,” “second,” “third,” etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

Unless defined otherwise, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used in this specification are intended to describe specific embodiments for illustrative purposes and are not intended to limit the present application. The term “and/or” used in this specification includes any and all combinations of one or more of the listed items.

Furthermore, the technical features involved in different embodiments described below in the present application can be combined with each other as long as they do not conflict with each other.

The term “pocket” refers to a storage space attached or formed on a bag, clothing, or similar object. It is typically made of the same or similar material as the bag, located on the surface or inside of the bag, and used for carrying and storing items by the user.

The term “fastening structure” refers to a structure that allows opening and closing operations and is used to form the opening-closing portion of a bag, clothing, or similar object. It can include various components and mechanisms to achieve reliable connection and fixation at the opening, ensuring the security and stability of the items.

By way of example, the fastening structure can be a combination of hooks and loops, buttons and buttonholes, a zipper composed of interlocking teeth and zipper heads, or a magnetic clasp utilizing the attraction force of magnets or magnetic materials.

In general, the present invention discloses a combination bag composed of a single-shoulder sling bagand a double-shoulder backpack. The combination bag can be reversibly transformed between a “separated state” and a “combined state” to meet the user's different usage needs.

The single-shoulder sling bagis a bag with a built-in rigid support structure and foldable deformability, which takes on different shapes depending on whether it is used in combination with the double-shoulder backpack. The double-shoulder backpackis a bag with a double-shoulder strap design, providing suitable storage space.

In the separated state, the single-shoulder sling bagand the double-shoulder backpackcan be used as two independent bags. As shown inand, when used independently, the single-shoulder sling bagneeds to be folded along a predetermined fold line to form a single-shoulder sling bag style with a suitable thickness and size.

In the combined state, as shown inand, the single-shoulder sling bagis unfolded along the fold line to minimize its thickness and securely accommodated within the storage space inside the double-shoulder backpack. Furthermore, the unfolded single-shoulder sling bagenriches the functional compartments and pockets of the double-shoulder backpack, providing more convenience for the user.

In the combination bag according to the present invention, a rigid support structure is used to achieve a sturdy outer shell, and the folding structure design of the single-shoulder sling bag is combined, which allows for an aesthetically pleasing appearance and a good user experience when the single-shoulder sling bag is used alone, without affecting the functionality of the single-shoulder sling bag and the double-shoulder backpack when used in combination.

,, andillustrate schematic diagrams of the single-shoulder sling bagin a folded state and an unfolded state, respectively. The specific components of the single-shoulder sling bagwith foldable deformability will be described in detail.

As shown in,, and, the single-shoulder sling bagmay include a bag body, a rigid support structure, at least two bag components, and a shoulder strap.

The bag bodyserves as the basic structure of the entire single-shoulder sling bag. It is flat in shape and has a first surface Sand a second surface Sthat face away from each other. The accompanying drawings show an example of a bag bodythat is generally square-shaped. However, those skilled in the art will understand that other suitable shapes can be selectively used based on practical needs, rather than being limited to square shapes.

The rigid support structureis a rigid component that can resist external forces and prevent bending and deformation. It can be embedded inside the bag bodyto support the basic shape of the bag body. As an example, the rigid support structurecan be made of plastic sheets with a certain thickness to achieve lightweight effects.

Referring to, the rigid support structureis appropriately arranged at specific positions of the bag bodyto form corresponding fold lines. This allows the bag bodyto be reversibly folded along the designated fold lines, enabling reversible transformation between the “folded state” and the “unfolded state.”

For example, in accordance with the generally square-shaped bag body, the rigid support structurecan be a pair of rectangular plastic sheets. The two rectangular plastic sheets are symmetrically arranged along the fold line X, thereby transforming the bag bodyin the folded state into a rectangular bag with a certain thickness.

The bag componentsare structural component fixed to the second surface of the bag bodythrough sewing, adhesion, or overlapping connections, among other connection methods. At least a portion of the edges of each bag componentis fixedly connected to the second surface of the bag body, forming an independent storage compartment.

Preferably, the opening of the storage compartment is also equipped with at least one fastening structure (e.g., a zipper) to secure the items stored in the storage compartment and prevent them from falling out.

As an example, two bag componentscan be set to form two independent storage compartments on the second surface of the bag bodyfor users to store items. Of course, those skilled in the art can also set a greater number of bag components based on practical needs.

Furthermore, on the surface of at least one bag component, several first pocketscan be further provided to enhance the storage function of the single-shoulder sling bag. For example, as shown in, two first pocketsare sewn onto the surface of the bag component.

Preferably, the surface of the aforementioned at least one bag component can also be equipped with at least one hanging ringfor hanging small items. The hanging ringcan be set in a position adjacent to the opening of the first pocket so that small items such as keys and folded plastic bags hung on the hanging ring can be inserted into the pocket. As an example, the hanging ringcan be fixedly connected to the surface of the bag component using magnetic attraction and/or snap fasteners.

The shoulder strapis a long strip-like structural component with a specific width and thickness. Its ends are attached to the bag bodyand can form shoulder straps for carrying, when the bag bodyis folded.

Specifically, the shoulder strapcan be made of any suitable flexible material, such as nylon, canvas, leather, etc., based on practical needs. It should have an appropriate thickness and width to provide sufficient support and cushioning effects.

Moreover, the shoulder strapcan further have functions such as length adjustment, padding, and/or magnetic connection buckles to meet the individual needs of users and enhance the carrying experience.

During actual use, when the bag bodyis in the folded state, the first surface of the bag body forms the outer surface of the single-shoulder sling bag. The storage compartments, first pockets, and hanging rings located on the second surface of the bag bodyare positioned on the inside of the single-shoulder sling bag, providing functional compartments for organized storage of different items.

Especially, the hanging ringlocated on the inside of the bag body do not pose a risk of accidentally scraping or falling off during use. Users can conveniently reach into or place items through the gaps at the folded top without the need to unzip the bag as required by conventional bags.

Furthermore, each opening of the storage compartments and first pockets can be set away from the fold line X, so that these openings face the top of the single-shoulder sling bagformed when the bag bodyis in the folded state, facilitating the insertion and removal of items.

Additionally, when the bag bodyis in the unfolded state, the storage compartments, first pockets, and hanging rings located on the second surface of the bag bodyalso provide ample storage space.

Therefore, when the bag bodyis detachably secured to the first surface and first wall of the double-shoulder backpack, the abundant storage space on the second surface of the bag bodycan be utilized as partitioned storage space inside the double-shoulder backpack.

For the sake of simplicity, in some embodiments, the two opposite edges of the bag bodylocated at the ends of the fold line can be referred to as the “first edge” and the “second edge,” respectively. The two distant ends of the shoulder strapcan be referred to as the “first end” and the “second end,” respectively.

Please refer to, where the first edgehas a first protrusionextending outward, and the second edgeb has a second protrusionextending outward. The first end and second end of the shoulder strapcan be attached to the first protrusionand the second protrusion, respectively.

The aforementioned additional first protrusionand second protrusionprovide some extra space to accommodate the volume and weight of the items contained inside when the bag bodyis in the folded state, thus preventing the shoulder strapfrom pulling and deforming the folded bag body.

Specifically, please refer to, where the first edgealso has a third protrusionpaired with the first protrusion, and the second edgeb has a fourth protrusionpaired with the second protrusion.

Between the mutually paired first protrusionand third protrusion, there is a fastening structure. Similarly, another fastening structure is set between the mutually paired second protrusionand fourth protrusion. For example, both of these fastening structures can be a combination of buttons and buttonholes.

By setting the aforementioned opening-closing structures, ideal fastening forces can be provided on both sides of the first edgeand second edgeb to keep the bag bodyin the folded state.

Ideally, please refer to, where the first end of the shoulder strapis attached to the first protrusion, and the second end of the shoulder strapis attached to the second protrusion. The shoulder strapalso passes through the ring structures set on the third protrusionand fourth protrusion. Therefore, when the bag bodyis in the unfolded state, the shoulder strapsurrounds the edges of the bag body without the need to detach it from the bag body.

Furthermore, the shoulder strapcan have an appropriate length to closely follow the edges of the unfolded bag bodyas much as possible.

shows a schematic view of the double-shoulder backpack from one angle, whileshows a schematic view of the double-shoulder backpack from another angle. The double-shoulder backpackforms an accommodating space internally, capable of accommodating and securing the single-shoulder sling bagin its unfolded state.

As shown inand, the interior space for accommodating can be defined by a first wall, a second wall, and continuous side walls.

The first walland the second wallare opposite to each other and spaced apart by a certain distance. The continuous side wallsjoin between the first walland the second wall, thereby enclosing an interior space for accommodation.

For ease of description, the joining edge between the continuous side wallsand the first wallis referred to as the “first joining edge,” while the joining edge between the continuous side wallsand the second wallis referred to as the “second joining edge.”