Backpack
The backpack's slit-shaped opening and folded portion enhance security by concealing contents against the back, preventing theft and rain, while maintaining easy access.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- KOSHI HIGH AMBITION CO LTD
- Filing Date
- 2025-10-02
- Publication Date
- 2026-06-26
AI Technical Summary
Conventional backpacks lack effective crime prevention features, as their fasteners can be opened unnoticed, leading to theft and exposure of contents, especially in crowded environments.
A backpack design featuring a slit-shaped opening on the back surface with adjustable overlap width and a folded portion to conceal the opening, ensuring security and easy access.
The design provides enhanced security by concealing the opening against the back, preventing theft and exposure of contents, while allowing easy access when needed, and resisting rain ingress.
Smart Images
Figure 0007880660000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to backpacks and other backpacks.
Background Art
[0002] Conventional backpacks are provided with openings that are opened and closed by fasteners on the upper surface or the front surface (the surface opposite to the surface that touches the back). Such backpacks may have their fasteners opened unnoticed and the contents stolen when riding on a crowded train or the like.
Summary of the Invention
Problems to be Solved by the Invention
[0003] In view of the above-described circumstances, an object of the present invention is to provide a backpack that is excellent in crime prevention and in which the user can easily take things in and out.
Means for Solving the Problems
[0004] In order to achieve the above object, a backpack according to the invention described in claim 1 includes a main body and a pair of shoulder straps. The main body is formed by dividing the fabric that touches the back into a right fabric and a left fabric, and the left edge of the right fabric and the right edge of the left fabric In a free state overlap each other front and back to form a slit-shaped opening Furthermore, the overlap width between the left edge of the right fabric and the right edge of the left fabric is greater in the middle section in the vertical direction than at the top and bottom. and is characterized in that.
[0005] A backpack according to the invention described in claim 2 is characterized in that, in addition to the configuration of the invention described in claim 1, a folded-back portion is provided on the back surface side of the side that overlaps on the front side, of the left edge of the right fabric and the right edge of the left fabric.
Effects of the Invention
[0006] A backpack according to the invention described in claim 1 includes a main body and a pair of shoulder straps. The main body is formed by dividing the fabric that touches the back into a right fabric and a left fabric, and the left edge of the right fabric and the right edge of the left fabric In a free state overlap each other front and back to form a slit-shaped opening Furthermore, the overlap width between the left edge of the right fabric and the right edge of the left fabric is greater in the middle section in the vertical direction than at the top and bottom.Therefore, since there are no openings other than the side that touches your back, it offers excellent security and prevents rain from getting inside. Moreover, by pulling the right fabric to the right and the left fabric to the left, the opening can be opened, making it easy to put things in and take them out.
[0007] The backpack according to claim 2 has a folded portion on the back side of the left edge of the right fabric and the right edge of the left fabric that overlaps on the front side, which prevents the opening from opening and making the contents visible or items from falling out, especially when the backpack is not being carried on the back. [Brief explanation of the drawing]
[0008] [Figure 1] This is a rear view showing one embodiment of the backpack bag of the present invention. [Figure 2] This is a front view of the backpack. [Figure 3] This is a side view of the backpack. [Figure 4] This is a plan view of the backpack. [Figure 5] This is a cross-sectional view of the main body of the backpack. [Figure 6] This is a rear view of the backpack, showing the bag with the opening open. [Modes for carrying out the invention]
[0009] The embodiments of the present invention will now be described based on the drawings. Figures 1 to 6 show one embodiment of the backpack bag 6 of the present invention. The backpack bag 6 of this embodiment is applied to a rucksack 6 and, as shown in Figures 1 to 4, comprises a body 1 that is substantially rectangular in shape and a pair of shoulder straps 2, 2 connected to the body 1. The length of the shoulder straps 2, 2 is adjustable.
[0010] As shown in Figures 1 and 5, the main body 1 is formed by dividing the fabric that touches the back into a right fabric 3 and a left fabric 4. The left edge 3a of the right fabric 3 and the right edge 4a of the left fabric 4 overlap front to back in a free state, forming a slit-shaped opening 5. In the illustration, the left edge 3a of the right fabric 3 overlaps the front side of the right edge 4a of the left fabric 4. The overlap width W between the left edge 3a of the right fabric 3 and the right edge 4a of the left fabric 4 is approximately 5 to 10 cm. The opening 5 is normally closed, but as shown in Figure 6, the opening 5 can be opened by pulling the right cloth 3 to the right and the left cloth 4 to the left, allowing items to be put in and taken out of the main body 1 through the opening 5. As described above, the opening 5 is provided only on the side of the main body 1 that is in contact with the back, and no openings are provided on any other side.
[0011] As shown in Figures 1 and 5, a pocket 8 is provided vertically on the left edge 3a of the right fabric 3, which can be opened and closed by a zipper 7. The dotted line 9 in Figure 1 indicates the bottom of the pocket 8. This pocket 8 is convenient for storing, for example, a folding umbrella.
[0012] Furthermore, as shown in Figure 5, a folded portion 10 is provided on the back side of the left edge 3a of the right cloth 3. With this folded portion 10, especially when the bag is not being carried on the back, the gap of the opening 5 is hidden by the folded portion 10, making it difficult to see the contents inside, and the contents inside the main body 1 are less likely to fall out because they get caught on the folded portion 10.
[0013] Thus, in this backpack 6, the opening 5 is only provided on the side that touches the back, so when the backpack is carried on the back, the opening 5 is hidden against the back, and there are no openings on the other sides, making it difficult for a third party to access the inside of the main body 1. In particular, if the shoulder straps 2,2 are tightened so that the back of the main body 1 is in close contact with the back, it becomes difficult to reach a hand between the back and the main body 1, so theft of the contents can be reliably prevented. By loosening the shoulder straps 2,2, you can reach behind you, put your hand into the opening 5, and access your belongings even while wearing the backpack. This is something that was not possible with conventional backpacks. In addition, since the backpack 6 has a folding portion 10 provided on the back surface side of the left edge portion 3a of the right cloth 3, it is possible to prevent the opening 5 from opening and the contents from being visible or falling out when placed on the floor.
[0014] As described above, the backpack 6 includes a main body 1 and a pair of shoulder belts 2, 2. The main body 1 is formed by dividing the fabric that contacts the back into a right cloth 3 and a left cloth 4. The left edge portion 3a of the right cloth 3 and the right edge portion 4a of the left cloth 4 overlap front and back to form a slit-shaped opening 5 (see FIGS. 1 and 5). Since there is no opening other than the surface that contacts the back, it has excellent security and is less likely to let rain in. Moreover, by pulling the right cloth 3 to the right and the left cloth 4 to the left, the opening 5 opens (see FIG. 6), and items can be easily taken in and out. Furthermore, since the backpack 6 has a folding portion 10 provided on the back surface side of the portion (3a) that overlaps on the front side among the left edge portion 3a of the right cloth 3 and the right edge portion 4a of the left cloth 4 (see FIG. 5), it is possible to prevent the opening 5 from opening and the contents from being visible or falling out especially when not carried on the back.
[0015] The present invention is not limited to the embodiments described above. The shape and material of the main body can be appropriately changed. The left edge portion of the right cloth and the right edge portion of the left cloth that form the slit-shaped opening can also be fastened with simple fasteners such as a surface fastener or a magnetic hook.
Explanation of Reference Numerals
[0016] 1 Main body 2 Shoulder belt 3 Right cloth 3a Left edge portion of the right cloth 4 Left cloth 4a Right edge portion of the left cloth 5 Opening 6 Backpack (backpack)
Claims
1. A backpack comprising a main body and a pair of shoulder straps, wherein the main body is formed by dividing the fabric that touches the back into a right fabric and a left fabric, with the left edge of the right fabric and the right edge of the left fabric overlapping freely in the front and back, forming a slit-shaped opening, and the overlap width of the left edge of the right fabric and the right edge of the left fabric being larger in the middle in the vertical direction than at the top and bottom.
2. The backpack according to claim 1, characterized in that a folded portion is provided on the back side of the portion that overlaps on the front side, between the left edge of the right cloth and the right edge of the left cloth.