Wickelrucksack

Abstract

Backpack (1) with a main compartment (2) and at least one shoulder strap (3, 3') arranged on the main compartment (2), wherein the main compartment (1) has a back panel (4) whose outer surface, when the backpack is worn with the shoulder strap over the shoulder, comes into contact with the back of the wearer at least partially, characterized in that an electrically heated material layer (5) is provided on the inside of the back panel (4), which is attached to the inside of the back panel (4) by at least one fastening means (6), wherein the at least one fastening means (5) is selected such that the attachment of the electrically heated material layer (5) to the inside of the back panel (4) can be released by hand without tools.

Description

[0001] The present invention relates to a backpack with a main compartment pocket and at least one shoulder strap arranged on the main compartment pocket.

[0002] Backpacks typically have a main compartment and possibly one or more internal or external pockets. The number, size, shape, and design of the pockets are adapted to specific needs, and thus, for example, hiking backpacks, travel backpacks, school backpacks, leisure backpacks, etc., can have quite different designs in this regard. The at least one shoulder strap attached to the backpack is worn over the shoulder, with the back panel of the backpack coming into contact with the wearer's back, at least partially.

[0003] Special backpacks, known as diaper backpacks, have been developed for carrying essentials for caring for babies and toddlers while out and about. These backpacks feature several differently designed compartments and pockets for neatly storing items such as diapers, wipes, bottles, pacifiers, and spare clothes. With a fully packed diaper backpack, parents have everything they need to optimally care for their child as required. Ideally, a suitable changing mat should also be included.

[0004] In some cases, especially during the colder months, the area where the changing mat is laid out can be too cold to comfortably place the child on. Electrically heated changing mats can provide a solution. However, some diaper bags don't have suitable pockets or compartments for these, meaning the electrically heated changing mat either can't be stored at all or can only be placed in the main compartment, where it then takes up too much space and obstructs the view.

[0005] Therefore, there is a need for a diaper bag backpack that can accommodate an electrically heated changing mat in such a way that it is always readily available on the go, without taking up too much space or restricting the overview in the backpack.

[0006] This problem is solved according to the invention by providing an electrically heated layer of material on the inside of the back panel of the main compartment of the diaper bag, which is suitable as a changing mat. According to the invention, this layer of material is attached to the inside of the back panel by at least one fastening means, wherein the at least one fastening means is selected such that the attachment of the electrically heated layer of material to the inside of the back panel can be released by hand without tools.

[0007] By attaching the electrically heated material layer to the inside of the back panel of the backpack according to the invention, the changing mat, which is thus firmly connected to the backpack, is always readily accessible without taking up too much space or obstructing the view inside the backpack. Because this attachment can be released by hand without tools, the changing mat can be quickly and easily detached from the inside of the backpack's back panel when needed, and after changing the baby, it can be just as quickly and easily reattached to its designated spot in the backpack. The changing mat therefore has a fixed place where it is neatly stored and out of the way.

[0008] Because the changing mat, in the form of an electrically heated layer of material, is located on the inside of the back panel of the diaper bag according to the invention, it can significantly increase wearing comfort, especially during the colder months, by radiating heat to the wearer's back when the heating function is activated. This effect is best achieved when the heating layer covers a large area, extending over at least 50% of the back panel of the bag. Preferably, the heating layer covers at least 70%, and even more preferably at least 90%, of the inside of the back panel.

[0009] When the backpack is not being worn, the heat transferred to the back panel can also be used to pre-warm surfaces where the baby will be placed. For example, the backpack – especially during the colder months – can be used to pre-warm a stroller or car seat without having to remove the electrically heated material from the backpack.

[0010] The placement of the electrically heated material layer on the inside of the back panel also allows baby clothes stored in the main compartment pocket to be pre-warmed.

[0011] In certain designs, the electrically heated material layer is single-layered. In some cases, the material layer is folded at least once, resulting in a two-layered or even multi-layered stack of material that rests against the inside of the back panel. When unfolded, it provides the necessary surface area for diaper changes. When folded, the material layer is precisely the right size for attachment to the inside of the back panel. Furthermore, the folded stack of material can also be used as a heated seat cushion for parents, especially during the colder months.

[0012] In most cases, the material layer extends over a generally rectangular area, optionally with rounded corners. However, other geometric surface designs are also possible in special embodiments.

[0013] In certain embodiments, at least one fastening means is provided on the outer circumference of the material layer. In embodiments where the material layer is folded, the at least one fastening means is preferably located on the outer circumference of the folded stack of material layers.

[0014] Preferably, at least one fastening means is provided on at least two opposite sides of the outer circumference of the material layer or stack of material layers. This ensures particularly stable fixation of the changing mat in the changing bag. Even stronger fixation is achieved in certain embodiments by providing at least one fastening means on at least three sides of the outer circumference of the material layer or the folded stack of material layers.

[0015] In a special embodiment, the material layer or the folded stack of material layers extends over a substantially rectangular area, wherein the at least one fastening means is provided on two, three or four sides of the substantially rectangular area on the outer circumference of the material layer or the stack of material layers.

[0016] Various fastening means are suitable for attaching the changing mat to the inside of the back panel of the backpack according to the invention. Examples include, but are not limited to, buttons, snap fasteners, magnets, zippers, hook and loop fasteners, or combinations thereof.

[0017] In certain embodiments, zippers and / or hook-and-loop fasteners are preferred as fastening means. Particularly preferably, in these embodiments, the zipper and / or hook-and-loop fastener extends over at least 50% of the outer circumference of the material layer or stack of material layers. Even more preferably, the zipper and / or hook-and-loop fastener extends over at least 70% or even at least 90% of the outer circumference of the material layer or stack of material layers. In special embodiments of the invention, the fastening means is a zipper or hook-and-loop fastener that extends completely along the outer circumference of the material layer or stack of material layers.

[0018] To ensure that the changing mat isn't forgotten when setting off, certain backpack designs include an indicator that visibly shows when the changing mat is attached to the inside of the back panel. This could be, for example, a viewing window in the back panel through which it can be seen whether the changing mat is attached. In alternative designs, attaching the changing mat to the inside of the back panel triggers a mechanism that moves an indicator element, such as a colored pen or a flag, so that it becomes visible on the outside of the backpack.

[0019] The electrically heated material layer can include an integrated storage medium for electrical energy and / or a connection for an external power source. In certain embodiments, the backpack according to the invention has a compartment for an electrical energy storage medium. Preferably, this compartment is accessible from the outside. The compartment can be closed with one of the aforementioned fastening means, and in certain embodiments, the compartment is equipped with a thermal insulation layer to protect the electrical storage medium from very high temperatures during the warm season or from very low temperatures during the cold season.

[0020] In certain embodiments, the compartment for the storage medium is located on the outside of the main compartment. Preferably, the compartment for an electrical energy storage medium has a cable entry opening through which a cable can be routed to the electrically heated material layer located on the inside of the back panel of the backpack. In this way, a cable can connect the material layer attached to the backpack to the storage medium in order to provide the heating function when the backpack is worn.

[0021] Alternatively or additionally, the compartment can also have a cable opening that opens to the outside. This external cable opening allows the storage medium to be connected to the layer of material removed from the backpack when used as a changing mat.

[0022] In certain embodiments, the backpack is equipped with a display device that allows external visibility of whether the storage medium for electrical energy is sufficiently charged.

[0023] Apart from the specific design related to the inventive attachment of an electrically heated changing mat inside the backpack, the backpack can be designed in various ways. For example, the backpack can have only one shoulder strap extending diagonally across the back panel or two shoulder straps arranged side by side on the back panel. The warming effect when wearing the backpack on the back is particularly effective with backpacks where the outer surface of the back panel lies close to the back, which is especially the case with embodiments featuring two shoulder straps arranged side by side on the back panel.

[0024] Furthermore, in certain embodiments, the backpack may have one or more of the following features: a hip belt, a chest strap, and / or a carrying handle at the top of the main compartment. In addition, in certain embodiments, the backpack may have one or more further internal or external compartments for other baby items useful on the go. To give the backpack particular stability and sturdiness when set down, certain embodiments of the backpack according to the invention have a reinforced base.

[0025] For the purposes of the original disclosure, it is pointed out that all features as they can be deduced by a person skilled in the art from the present description, the attached drawings, and the following claims, even if they are specifically described only in connection with certain other features, can be combined individually or in any combination with other features or groups of features disclosed herein, unless this has been expressly excluded or technical circumstances render such combinations impossible or pointless. A comprehensive, explicit description of all conceivable combinations of features is omitted here solely for the sake of brevity and readability.

[0026] Furthermore, it should be noted that it is self-evident to those skilled in the art that the following exemplary embodiments serve only to illustrate the possible embodiments of the present invention presented as examples. Those skilled in the art will therefore readily understand that, in addition, all other embodiments exhibiting the features or combinations of features of the invention mentioned in the claims also fall within the scope of protection of the invention. A comprehensive, explicit description of all conceivable embodiments is omitted here solely for the sake of brevity and readability. Fig. Figure 1 shows a special embodiment of the diaper bag according to the invention.

[0027] In Fig.Figure 1 shows an embodiment of the backpack 1 according to the invention, featuring a large main compartment 2. Two shoulder straps 3, 3' are arranged on the right and left sides of this main compartment 2, running essentially parallel over the back panel 4. These shoulder straps 3, 3' allow the backpack 1 to be pulled onto the back for carrying, with the outer surface of the back panel 4 coming into contact with the wearer's back.

[0028] On the inside of the back panel 4, an electrically heated material layer 5 is provided, which is attached to the inside of the back panel 4 by a fastening element 6 that completely encircles the outer circumference of the material layer 5. In the embodiment shown here, a zipper is arranged completely around the outer circumference of a single-layer material layer 5.

[0029] The embodiment shown here has an additional compartment 7 at the upper end of the back part 4 for a storage medium 8 for electrical energy, wherein a cable 10 for connecting to the electrically heated material layer 5 is provided on the storage medium 8, wherein the cable 10 passes through an opening 9 in the pocket 7 and through the back part 4 into the main compartment pocket 2, in order to be connected there to the material layer 5 attached to the inside of the back part 4. Reference symbol list: 1 backpack 2 main compartment bags 3.3' shoulder strap 4 Back section 5 Material layer 6 Fasteners 7-fold 8 Storage medium 9 Opening 10 cables

Claims

[1] Backpack (1) with a main compartment (2) and at least one shoulder strap (3, 3') arranged on the main compartment (2), wherein the main compartment (1) has a back panel (4) the outside of which, when the backpack is worn with the shoulder strap placed over the shoulder, comes into contact with the back of the wearer at least partially, characterized by , that an electrically heated material layer (5) is provided on the inside of the back part (4), which is attached to the inside of the back part (4) by at least one fastening means (6), wherein the at least one fastening means (5) is selected such that the attachment of the electrically heated material layer (5) to the inside of the back part (4) can be released by hand without tools. [2] Backpack according to claim 1, characterized by that at least one fastening means is provided on the outer circumference of the material layer. [3] Backpack according to one of claims 1 and 2, characterized bythat at least one fastening means is provided on at least two opposite sides on the outer circumference of the material layer. [4] Backpack according to one of claims 1 to 3, characterized by that the material layer extends over a substantially rectangular area and that at least one fastening means is provided on two, three or four sides of the substantially rectangular area on the outer perimeter of the material layer. [5] Backpack according to one of claims 1 to 4, characterized by that at least one fastening device is selected from a button, snap fastener, magnet, zipper, Velcro fastener or combinations thereof. [6] Backpack according to one of claims 1 to 5, characterized by that the fastening means is at least a zipper or hook and loop fastener which extends over at least 50%, at least 70% or at least 90% of the outer circumference of the material layer. [7] Backpack according to one of claims 1 to 6, characterized by that the fastening device is a zipper or hook and loop fastener that extends fully along the outer circumference of the material layer. [8] Backpack according to one of claims 1 to 7, characterized by that the backpack is equipped with an indicator that allows it to be seen from the outside when the material layer is attached to the inside of the back panel. [9] Backpack according to any one of claims 1 to 8, characterized by , that the backpack has a compartment (7) for a storage medium (8) for electrical energy. [10] Backpack according to claim 8, characterized by , that the compartment for an electrical energy storage medium has one or more of the following features: ▪ accessible from the outside, ▪ Can be closed with a zipper or Velcro fastener, ▪ arranged on the outside of the main compartment and / or ▪ with cable entry opening. [11] Backpack according to one of claims 9 and 10, characterized by that the backpack is equipped with a display device that allows external visibility of whether the storage medium for electrical energy is sufficiently charged. [12] Backpack according to any one of claims 1 to 11, characterized by that the backpack has one shoulder strap extending diagonally across the back panel or two shoulder straps arranged side by side on the back panel. [13] Backpack according to any one of claims 1 to 12, characterized by that the backpack has one or more of the following features: ▪ at least one additional internal or external compartment, ▪ a hip belt, ▪ a chest strap, ▪ a handle on the top of the main compartment and / or ▪ a reinforced floor.

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