bag

The bag design with a main and auxiliary storage section and enhanced gusset width addresses capacity and retrieval issues, providing a larger storage space and stable weight distribution for easy item handling.

JP3253094UActive Publication Date: 2025-10-06LEISURE PROD CO LTD
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Patent Information

Application Number
JP2025001779U
Authority / Receiving Office
JP · JP
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2025-06-02
Publication Date
2025-10-06
Estimated Expiration
2035-06-02

AI Technical Summary

Technical Problem

Conventional bags have a main storage section with uniform gusset dimensions, leading to a smaller capacity than expected, and items may be pinched by the walls when removed, making it difficult to store and retrieve items of varying sizes and quantities.

Method used

A bag design with a main storage section and an auxiliary storage section, where the main storage section extends in the thickness direction and has a larger gusset width at the bottom, accompanied by a partition piece and slide fasteners, allowing for a larger capacity and easy item retrieval.

Benefits of technology

Ensures a larger storage capacity in the main section, prevents items from being pinched, and maintains stable weight distribution, facilitating easy storage and removal of items, even large ones, while maintaining durability and reducing manufacturing costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a bag from which contents stored near the bottom of a main storage section can be easily taken out. [Solution] A bag 1 having a main storage section 2 and an auxiliary storage section 3 provided outside the main storage section 2, wherein the second top surface 34 of the auxiliary storage section 3 is formed on the same plane as the first top surface 25 of the main storage section 2, and the second bottom surface 32 of the auxiliary storage section 3 is positioned above and spaced apart from the first bottom surface 22 of the main storage section 2, and the main storage section 2 is formed to extend in the thickness direction down to below the auxiliary storage section 3.
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Description

[Technical Field]

[0001] The present invention relates to an improvement in bags. [Background technology]

[0002] Generally, a bag has a main storage section and a sub-storage section, and the gusset dimensions of the main storage section are the same in the vertical direction, forming an internal space that is approximately rectangular parallelepiped (Patent Document 1).

[0003] In this case, the capacity of the main storage section is the capacity of the entire bag excluding the various bag components such as the sub-storage section and front pocket. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-161559 Summary of the Invention [Problem to be solved by the invention]

[0005] As a result, the capacity of the main storage compartment is generally smaller than the capacity of the entire bag, and users may not be able to store items of the size and quantity they expect from the visual appearance of the entire bag in the main storage compartment.

[0006] In particular, users may refer to the capacity label on a bag when considering whether to purchase it, but since the capacity label on a bag indicates the total storage capacity of all storage areas of the bag (main storage area, secondary storage area, front pocket, etc.), if a user purchases a bag based on the capacity label, they may be disappointed when they actually use the bag, expecting the main storage area to have a certain storage capacity, but not being able to fit items of the specified size and amount into the main storage area, and they may not be able to use the bag as they had intended.

[0007] Furthermore, in conventional bags, as described above, the main storage section is formed with the same gusset dimensions (thickness dimensions) and has a specified width dimension throughout the entire depth direction. Therefore, if a user tries to store an item that is large compared to the width dimension of the main storage section or a large amount of items in the main storage section, the item will be pinched by the wall parts that form the main storage section when trying to remove it, making it difficult to remove due to the pressure of the wall parts, and as a result, it is difficult to use.

[0008] Therefore, this invention was made in consideration of the above-mentioned problems, and its object is to provide a bag that has a large capacity in the main storage section, can store a relatively large amount of items in the main storage section compared to the size of the bag, and can easily take out the items. [Means for solving the problem]

[0009] The invention of claim 1 is a bag having a main storage section and an auxiliary storage section provided on the outer side of the main storage section, wherein the main storage section is formed by a rear side piece, a first bottom surface portion connected to the lower end of the rear side piece, first side surfaces connected to the rear side piece and the first bottom surface portion, a first top surface portion connected to the rear side piece and the first side surface portion, and a partition piece provided opposite the rear side piece and joined to the first gusset piece, and the auxiliary storage section is formed by a partition piece provided opposite the partition piece on the outer side of the partition piece. a second gusset portion having a first front side piece provided with a second bottom surface connected to the first front side piece, second side surfaces connected to the second bottom surface, a second top surface connected to the second side surfaces, and the partition piece; the second top surface of the auxiliary storage portion is formed on the same plane as the first top surface of the main storage portion, and the second bottom surface of the auxiliary storage portion is disposed spaced upward from the first bottom surface of the main storage portion; the main storage portion is formed to extend in the thickness direction down to below the auxiliary storage portion; and the lower part of the main storage portion is Facing the main storage compartment The housing is characterized in that it is formed by a lower portion of a first partition piece, a lower portion of the back side piece, and lower portions of the first bottom surface portion and the first two side surface portions.

[0010] The invention described in claim 2 is The aforementioned The partition piece is The first partition piece and, The first partition piece and a second partition piece portion that is joined to the outer side of the secondary storage portion and faces the secondary storage portion, The first partition piece has an upper end joined to the joint between the first upper surface portion and the second upper surface portion, and a lower end joined to the front end of the first bottom surface portion, and the second bottom surface portion is formed by the second partition piece.

[0011] The invention of claim 3 is characterized in that a frame material is provided inside the inner peripheral edge of the back side piece and the inner peripheral edge of the first partition piece.

[0012] The invention described in claim 4 is characterized in that slide fastener portions are provided on the first top surface portion and the first two side surfaces of the first gusset portion, and on the second top surface portion and the second two side surfaces of the second gusset portion.

[0013] The invention described in claim 5 is characterized in that the first side portions are formed by the lower parts of the first side portions and the upper parts of the first side portions, and the lower parts of the first side portions have lateral storage sections provided across the entire gusset width.

[0014] The invention described in claim 6 is the main storage section is characterized by occupying 90% of the total volume of the bag.

[0015] The invention described in claim 7 is characterized in that it is formed as a backpack.

[0016] The invention described in claim 8 is characterized in that it is formed as a briefcase. [Effects of the Invention]

[0017] In the present invention, the second bottom surface of the auxiliary storage section is positioned above and spaced apart from the first bottom surface of the main storage section, and the main storage section is formed to extend in the thickness direction down to the bottom of the auxiliary storage section, and the lower part of the main storage section is formed by the lower part of the first partition piece, the lower part of the back side piece, and the lower parts of the first bottom surface and the first two side surfaces.Since the gusset width of the main storage section is formed larger at the lower part, a large storage space can be formed near the bottom of the main storage section, and the capacity of the main storage section can be ensured to be large compared to the capacity of the entire bag.

[0018] Therefore, it is possible to reduce as much as possible the situation where a user would consider purchasing a bag based on the capacity label and expect the main storage section to have a certain storage capacity, only to find that when actually using the bag, the specified size and amount of items cannot fit in the main storage section, resulting in disappointment at the time of purchase.

[0019] In addition, since a large storage space can be formed near the bottom of the main storage section, it is possible to store large-capacity items or even a large number of small-capacity items at the bottom of the bag body.

[0020] Furthermore, as in the past, when a user forcibly stored an item or quantity of items in the main storage compartment that was larger than the width dimension of the main storage compartment, the item would be pinched by the wall surface that forms the main storage compartment when trying to remove it, making it difficult to remove due to the pressure of the wall surface.This problem can be improved as much as possible, and a bag that is excellent for storing and removing items can be provided.

[0021] Furthermore, because the bottom can be made large, when a certain amount of storage is stored, the weight distribution at the bottom is large, and the bag is not top-heavy, resulting in a good weight balance between the top and bottom of the bag itself, allowing the bag to be placed stably. It also allows for stable handling when transporting the bag.

[0022] Furthermore, since the gusset pockets are generally located at the bottom of the side storage area that is formed across the entire gusset width on the side of the bag, the bottom of the gusset side is formed from a single piece of fabric and there are no seams to the outer 5 pockets, so the gusset pockets can be located using the entire gusset width of the bag body, making it possible to effectively store items such as large-diameter bottles.

[0023] Furthermore, in the past, in order to increase the storage capacity of the main storage section, some bags have been designed so that the gusset width can be expanded by opening and closing it with a zipper, but in the case of such bags, the zipper and the extending gusset increase manufacturing costs, and opening and closing the zipper is cumbersome when using the bag. Furthermore, since the zipper is provided at the bottom of the bag, the zipper may be easily damaged and lack durability when the bag is placed on the floor or ground. According to the present invention, it is possible to provide a bag that does not have such inconveniences and that makes it easy to store and take out items. [Brief explanation of the drawings]

[0024] [Figure 1] 1 is a perspective view showing a bag according to an embodiment of the present invention; [Figure 2] 1 is a side view of a bag according to an embodiment of the present invention; [Figure 3] FIG. 3 is a schematic cross-sectional view of the bag of FIG. 2. DETAILED DESCRIPTION OF THE INVENTION

[0025] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a bag according to the present invention will be described with reference to the drawings. Fig. 1 is a perspective view showing a bag 1 according to an embodiment of the present invention. Fig. 2 is a side view showing the bag 1 according to an embodiment of the present invention. Fig. 3 is a schematic cross-sectional view of the bag 1 of Fig. 2. For the sake of convenience, the strap 4 is not shown in Figs. 2 and 3.

[0026] As shown in Figures 1 to 3, the bag 1 of this embodiment is configured as a backpack that is worn on the back with the arms passed through a pair of straps 4 provided on the left and right sides of the back portion, and is equipped with a main storage section 2, a secondary storage section 3 provided on the outer side in the thickness direction of the main storage section 2, a pair of side storage sections 5 provided on the left and right sides of the main storage section 2, and a handle section 6 provided above the main storage section 2.

[0027] As shown in Figure 2, when the bag 1 is viewed from the side with the first bottom surface portion 22 facing downwards, the overall outer shape is formed into an approximately rectangular parallelepiped shape that tapers upward from the bottom (first bottom surface portion 22) with the gusset dimensions (width dimensions of both side surfaces) gradually decreasing slightly in the thickness direction from the lower end to the upper end.

[0028] The main storage section 2 is the storage space with the largest storage capacity in the bag 1, and is formed by a rear side piece 21 to which the strap 4 is attached, a first bottom surface 22 connected to the lower end of the rear side piece 21, first side surfaces 23 connected to the rear side piece 21 and the first bottom surface 22, a first gusset portion 26 having a first top surface 25 connected to the rear side piece 21 and the first side surfaces 23, and a first partition piece S1 provided opposite the rear side piece 21 and joined to the first gusset portion 26. In this embodiment, all of the fabric pieces that make up the bag 1 are made of synthetic resin.

[0029] The term "connected" as used herein is a concept that encompasses not only situations in which the garment is formed from a single cloth-like member, but also situations in which separate cloth-like members are sewn together.

[0030] The lower part of the main storage section 2 is formed by the lower part of the first partition piece S1, the lower part of the back side piece 21, the first bottom surface portion 22 and the lower part of the first bottom surface portion 22.

[0031] Furthermore, main storage section 2 is provided with first slide fastener section 27 that can be opened and closed, extending from first top surface section 25 to upper sections 23a of first side surfaces. By opening first slide fastener section 27, items can be put in and taken out from above main storage section 2.

[0032] The lower first side surface portions 23b each have a side storage section 5 extending across the entire gusset width and having an opening 5a at the upper end. The side storage section 5 is configured to store mainly rod-shaped items such as plastic bottles and folding umbrellas so that the user can quickly take them out when in use. In the bag (backpack) 1 of this embodiment, the side storage section 5 is formed across the entire gusset width, and the lower part is formed as a wide storage section, making it easy to take in and out plastic bottles, folding umbrellas, etc. In this embodiment, the first front piece 24 and the first lower side piece portions 23b are integrally formed from a single fabric material 9 by sewing.

[0033] The auxiliary storage section 3 is formed by a first front side piece 31 arranged opposite the partition piece S on the outer side of the first partition piece S1, a second bottom surface 32 connected to the first front side piece 31, second side surface portions 33 connected to the second bottom surface portion 32, a second gusset portion 35 having a second top surface portion 34 connected to the second side surface portions 33, and a second partition piece S2 joined to the outer surface side of the first partition piece S1.

[0034] The partition piece S1 defines the space between the main storage section 2 and the secondary storage section 3, and its upper end S1a is sewn and fixed to the joint between the first upper surface section 25 and the second upper surface section 36, while its lower end S1b is joined to the front end of the first bottom surface section 22. Therefore, the thickness dimension of the upper and middle parts of the main storage section 2 is slightly narrower than the overall thickness dimension of the bag 1 by the thickness dimension of the auxiliary storage section 3, but the lower part is formed to have almost the same thickness dimension as the entire bag 1.

[0035] As a result, a gap A is formed below the auxiliary storage section 3, and when an item to be stored is stored in the main storage section 2 and placed on the first bottom surface section 22, the entire first gusset section 26 below the main storage section 2 can be used as a storage area across the entire thickness of the first bottom surface section 22. In this embodiment, the second front piece 31, the second side pieces 33, and the second top piece 34 are formed by sewing together a single piece of fabric. The second partition piece S2 is formed by folding the inner cover material 31a of the front piece 31 inward at the bottom and then folding it back upward, with the end being sewn together and fixed to the first partition piece S1.

[0036] Additionally, second slide fastener sections 36 that can be opened and closed are provided on the second top surface section 34 and second side surface sections 33 of the auxiliary storage section 3. By opening the second slide fastener sections 36, items can be put in and taken out of the auxiliary storage section 3 from above.

[0037] The second top surface 34 of the auxiliary storage section 3 is formed on the same plane as the first top surface 25 of the main storage section 2. The second bottom surface 32 of the auxiliary storage section is disposed above and spaced apart from the first bottom surface 22 of the main storage section 2.

[0038] Therefore, in the bag 1 according to this embodiment, the main storage section 2 is formed to extend in the thickness direction up to below the sub-storage section 3. In bag 1 according to the present embodiment, the storage capacity of main storage section 2 forms 90% of the storage capacity of the entire bag 1. Therefore, there is little difference between the storage capacity of the entire bag 1 and the storage capacity of main storage section 2. As a result, it is possible to reduce the situation where, as in the past, even if a user purchases a bag based on the capacity label of the bag, the main storage section does not have the capacity that the user expected, and the user is greatly disappointed with the storage capacity of the main storage section. In addition, since a large storage space can be secured, including the gap A near the bottom of the main storage section 2, items stored near the bottom of the main storage section 2 can be stored and removed smoothly, making it easy to store and remove the contents.

[0039] In addition, a frame material frame 7 such as a resin pipe material having a predetermined strength and a vertically long rectangular frame shape is installed on the inner peripheral edge of the back side piece 21 of the main storage section 2, and a similar frame material 8 is installed on the inner peripheral edge of the first partition piece S.

[0040] By installing such frame materials 7 and 8 inside, the shape of the bag 1 can be stabilized and it can be prevented from losing its shape, and it can also prevent the main storage section 2, which is common in backpacks, from collapsing, making it difficult to take out the contents.

[0041] The present invention is not limited to the above-described embodiment, and various modifications can be adopted. For example, in the above-described embodiment, the bag 1 is a backpack, but in the present invention, it is not limited to a backpack, and the bag 1 may be of another type, such as a briefcase having a handle portion formed at the top end instead of a strap 4.

[0042] Even if the bag 1 is a briefcase or the like, as described above, a large storage space can be secured near the bottom of the main storage section 2, so when removing items stored near the bottom of the main storage section 2, the removal operation can be performed smoothly and the contents can be easily removed. [Explanation of symbols]

[0043] 1 bag 2 Main storage area 3 Secondary storage area 4 Straps 5 Side storage area 5a opening 6 Handle 7 Frame material 8 Frame material 9 Cloth material 21 Back side part 22 1st bottom part 23 First both sides 24 Second front side piece 25 1st top section 26 First gusset 27 First slide fastener part 31 First front side part 31a Inner skin material 32 2nd bottom part 33 Second both sides 34 2nd top section 35 Second gusset 36 Second slide fastener section S1 First partition piece S1a upper end S1b bottom end S2 2nd partition piece A void area

Claims

1. A bag having a main storage section and a secondary storage section provided on the outer side of the main storage section, the main storage section is formed by a rear side piece, a first bottom surface portion connected to a lower end of the rear side piece, first side surfaces connected to the rear side piece and the first bottom surface portion, a first gusset portion having a first top surface portion connected to the rear side piece and the first side surface portions, and a partition piece portion provided opposite the rear side piece and joined to the first gusset portion, The auxiliary storage section is formed by a first front side piece provided opposite the partition piece on the outer side of the partition piece, a second bottom surface connected to the first front side piece, second side surfaces connected to the second bottom surface, a second gusset portion having a second top surface connected to the second side surfaces, and the partition piece, a second top surface of the auxiliary storage section is formed on the same plane as a first top surface of the main storage section, a second bottom surface of the auxiliary storage section is disposed above and spaced apart from the first bottom surface of the main storage section, and the main storage section is formed to extend in a thickness direction up to below the auxiliary storage section, A bag characterized in that the lower part of the main storage section is formed by the lower part of the first partition piece, the lower part of the back side piece, the first bottom part, and the lower parts of the first two side parts.

2. the partition piece is composed of a first partition piece facing the main storage section and a second partition piece joined to the outside of the first partition piece and facing the sub-storage section; The bag according to claim 1, characterized in that the upper end of the first partition piece is joined to the joint between the first upper surface portion and the second upper surface portion, and the lower end is joined to the front end of the first bottom surface portion, and the second bottom surface portion is formed by the second partition piece.

3. 2. The bag according to claim 1, wherein a frame material is provided on the inner peripheral edge of the rear side piece and the inner peripheral edge of the first partition piece.

4. The bag according to claim 1, characterized in that slide fasteners are provided on the first top surface and the first side surfaces of the first gusset portion, and on the second top surface and the second side surfaces of the second gusset portion.

5. The bag according to claim 1, characterized in that the first side portions are formed by lower portions of the first side portions and upper portions of the first side portions, and the lower portions of the first side portions have lateral storage sections across the entire gusset width.

6. 2. The bag according to claim 1, wherein the main storage section occupies 90% of the total volume of the bag.

7. 2. The bag according to claim 1, characterized in that it is formed as a backpack.

8. 2. The bag of claim 1, wherein the bag is configured as a briefcase.

Citation Information

Patent Citations

  • Tote bag

    JP2014161559A