JP2024128905A - bag - Google Patents

Abstract

[Problem] To provide a bag with a pocket that places importance on the state of the pocket (volume/shape/location) of the bag, expanding the variety and functionality of the pocket for storage, while at the same time greatly improving the functionality of the bag. [Solution] By providing a pocket at the very top of the bag, parallel to the bottom surface of the bag, in a way that covers the entire top, expanding the variety and functionality of the pocket for storage, putting things in the pocket helps to adjust the weight balance of the entire bag, and the pocket can be removed to use it as an open-top bag, a bag with a pocket that dramatically improves not only the pocket but also the functionality of the bag, and an opening that also serves as a light source is provided on the body side, making the inside of the bag very bright, making it easy and fun to take things in and out while organizing, and a bag that never gets boring because it has an optimal location for the pocket. [Selected drawing] Figure 1

Description

This bag is designed with an emphasis on the pockets (capacity, shape, and location),

This bag focuses on the existence of empty space near the top of a bag that is usually created when something is put into the bag, and has a lidded, large, roughly rectangular, box-like or bag-like pocket attached to the empty space so as to cover the entire top opening in a sort of attic style, so that things are inevitably put in and taken out from the front and back sides of the bag, and further relates to a bag whose functions are dramatically expanded by making the pocket "built into the bag", "removable from the bag", and "removable from the bottom",

By putting things in the pockets, they always serve to store a portion of the things in the bag, improving the weight balance of the bag as a whole and encouraging light carrying of the bag without making the bag feel excessively heavy.

The pockets of conventional bags, whether they are external or internal, are like crayons in a snowy field, with narrow gussets and vertical grooves, and there is little or no variety in the size, shape, and storage method of the items that can be put inside. The inside of the pocket is dark, has poor ventilation and sunlight, is difficult to clean, and is extremely unhygienic.
Isn't it necessary to design bags with more emphasis on the pockets (capacity, shape, location)?

In conventional bags, when things are put into them, the things tend to concentrate at the bottom or tend to pile up from the bottom, which can result in a fairly large empty space near the top of the bag. As a result, the overall shape of the bag tends to be abnormally bulging at the bottom, as if someone has sat on their bottom, making the bag feel even heavier when carried (e.g. backpacks, tote bags, etc.).
Perhaps it would be good to pay more attention to the weight distribution of the items in the bag, and ultimately the weight balance of the bag as a whole.
Is there any way to improve the weight distribution?

Prior References

Patent Publication 2000-245518 Utility model registration number: 3033309

The pockets of conventional bags, whether external or internal, are similar to crayons in a snowy field, with most having narrow gussets and vertical grooves, offering very little flexibility in the size, shape, and storage method of the items that can be put inside.
The inside of the pocket is dark, the ventilation and sunlight are poor, it is difficult to clean the inside, and it is extremely unhygienic. It seems that bag design needs to pay more attention to the pockets (capacity size/shape/location).

With conventional bags, when you put things in a bag, the things tend to end up at the bottom of the bag or they tend to pile up from the bottom, which often results in a fairly large empty space near the top opening of the bag. This makes the overall shape of the bag look unsightly, with the bottom bulging abnormally, as if someone has sat on their bottom, and makes the bag feel even heavier when you carry it.
This is especially prevalent in backpacks and tote bags for town use.
This brings to mind the ingenious ways that travelers in Japan, around the Edo period, would take into consideration the size and weight of their luggage, divide it in half, connect the two with a string, and then wear the middle part of the string over their shoulder, thereby improving the weight balance of their luggage and making it easier to carry.
Even in modern bags, it is not out of the question to emulate such ingenuity from our predecessors.
As much as possible, we should try to distribute the weight of the items in the bag well and improve the overall weight balance of the bag so that it doesn't feel too heavy and is as easy to carry as possible.

We would like to propose a bag that solves both of the above problems [0007] and [0008] at once.

Means to solve the problem

We propose a bag that solves two issues at once: placing more importance on the design of pockets (volume/shape/location), carefully considering the weight distribution of the items inside the bag, and making the bag easy to carry; by utilizing the space around the top opening of the bag and providing a pocket with a large capacity.

A pocket with a lid covering the entire top opening of the bag, with a moderate depth, a large capacity, and a roughly rectangular box-like or bag-like shape, and is constructed in the following ways: (1) a type in which the entire pocket is built into the bag;
(2) A type in which the entire pocket can be attached to/detached from the bag;
(3) A type in which the bottom can be removed from the pockets of both types (1) and (2),
This bag has a loft-style pocket attached to the top of the bag so as to cover the entire top, and except for the pocket, things are inevitably taken in and out through openings provided on the front and rear sides of the bag, and when taking things in and out, the openings play the role of "light intake," making the bottom of the bag even brighter, making it extremely easy to take things in and out while organizing (hereinafter, the pocket and bag will be referred to as loft pockets and loft bags, respectively).
Loft pockets greatly expand the variety of sizes, shapes, and ways of storing items (e.g., facing up, facing sideways, etc.) that can be put inside them, and at the same time, make it possible to construct pockets in the types (1) to (3) shown below, thereby enabling the creation of open-top and semi-open-top bags, thereby introducing new pocket functions and further enhancing the functionality of pockets.

Depending on the bag, the opening for access from the side of the bag can be only from the front side, only from the rear side, or from both the front and rear sides. Access from the side of the bag can be easily achieved using current technology and techniques. The main reasons for the construction are as follows:
(a) Y-shaped zipper closure (Figure 4)
(b) Inverted U-shaped zipper closure (Fig. 5)
(c) Inverted L-shaped zipper closure (Fig. 6)
(d) Inverted “H”-shaped zipper closure (Fig. 7)
(e) Hollowed-out body (rectangular, etc.), protruding L-shaped window, with large accordion gusset (Fig. 8)
Taking things in and out from the body of the stove is a natural process, similar to putting firewood in a stove or fireplace, or arranging the firewood in a way that keeps the fire going.

By distributing some of the items put into the bag in the loft pockets, the weight balance of the bag as a whole is naturally improved, making the bag light and easy to carry without feeling any extra weight.

Effect of the invention

をも楽しめ、ロフトバッグとしての機能とあわせ複数の機能が楽しめるので、バッグにとって最大の敵と云える「持主に飽きられる」ことが来にくいバッグに仕立て上げている。
ロフトポケットは、ポケットの新しい機能を登場させた、と云える。
特にほぼ袋状のロフトポケットを持つタウンユースのリュックサックや巾着型バッグは底抜き出来る型が最適である（図２（ａ）・（ｂ））。
以上のことから、何れにしてもロフトポケットの蓋は最初から取りはずし出来る作りにしておくのが便利で望ましい。
（６）ロフトポケット及びロフトバッグは非常に衛生的：
ロフトポケットはバッグの最上部にあり、主たる物の出し入れは胴側からすることから、バッグ全体として内部は通氣性や日当たり工合が極めて良く、構造的にも内部の掃除がし易いため、バッグ全体を非常に衛生的に維持出来る。
（７）ロフトバッグは遊び心をくすぐるバッグ：
その日使うバッグは、理想的なバッグ使いという点から見て表現すれば「自分の体の一部のように使いこなせるもの（機能性／思想性十分のバッグであることが必要で、これはバッグの必要条件と云える）、且つ楽しみながら使えるもの（なかなか飽きが来ず、遊び心を満たすに十分のバッグであることが必要で、これはバッグの十分条件と云える）」であって欲しい。
くどいようだが、本開発者及び本開発品の最終の目標／真の狙いは、「持主に、仲に飽きを来させないバッグを提供する」ことである。
ロフトバッグは、通常のバッグで、トップからストーンと落すように物を入れてすませるのではなく、胴側に、明かり取りの役を演じる物の出し入れ口を設け、バッグ内部の底の方を明かるくし、中の物を一望で見易くし、自然に中の物を整理しながらの出し入れを可能にする訳で表現を変えれば、中の物を色々と手で「いじらせる」バッグであって、この「いじり」行為が遊び心をくすぐり／刺激することにつながる可能性が大きいのである。
例えれば、野球の選手が愛着をもつ自分のグローブやミットに、ひそかに自分なりに工夫を加えた機能をもたせ遊び心も満たす細工をしたり、素材のカラーに凝ったりする如く、「いじり」は遊び心をくすぐり、遊び場を求め、秘密基地のごときものを開拓することに通じるかも知れない。
この様な遊び場／秘密基地的なものとして本開発者が思いつくものをあげれば、
（ａ）長めの革ひもをつけた「吊りポケット」を作り、バッグ開口は作り付けず（固定せず）、中の物と一緒に状況に応じバッグの中を自由に移動させる。
云わば「移動ポケット」である。
前記長い革ひもの端はホックボタン等でバッグ内のどこかに留めておく。
（移動ポケットは非ロフトバッグ一般にも使用可能である）（図９）。
（ｂ）マチ巾のあるロフトバッグ型のトートバッグで、左右どちらかのマチの裏側（バッグ内部）に、相対する前・後胴の両裏側を結ぶように、適当な高さで「びょうぶ型にした仕切り壁」を作りつけ、びょうぶのように折り曲げ自在の空間をつくり例えば、ゴロゴロした似た物同志をまとめて入れ、蓋なしのポケットとして使う。
云わば「寄せ場ポケット」である（このポケットは、ロフトバッグ、非ロフトバッグを問わず、特にマチ巾のひろいバッグに応用可能である（図１０）。
（ｃ）マチ巾のあるロフトバッグ型トートバッグの片方のマチ、例えば上記（ｂ）が設けられたマチ側に（ｂ）にアクセス出来るファスナー開閉口を設ける（図１１）。 The advantages of the loft bag are as follows: (1) The loft pockets can store a variety of items:
The shape is roughly rectangular, box-like or bag-like, and the pockets have a large capacity, so items can be placed freely, either facing up or sideways, and even items with complex shapes, delicate materials that require careful handling, or bulky items such as cosmetics or medicine bottles with large differences in shape and size can be stored together.
(2) The loft pocket is breathable, sunny, bright and hygienic:
Located at the top of the bag, it is well ventilated and exposed to sunlight, making it ideal for storing items that require hygienic care.
(Example: spare mask/handkerchief/pocket tissue, etc.).
(3) Loft pockets allow frequent and quick access to items:
Because it is located at the top of the bag, the inside of the pocket is bright and easy to see, making it ideal for storing items that need to be taken out and put back in frequently and quickly.
(Examples: smartphones, glasses (in case)/(without case), etc.).
(4) The loft pocket helps to balance the weight of the bag:
Putting things in the loft pockets already measures the weight balance inside the bag to a certain extent, and furthermore, if necessary, it is possible to redistribute the weight by moving some of the things in the main body to the loft pockets, which prevents the bottom of the bag from bulging out abnormally like a person sitting on their bottom due to the contents of the bag being too concentrated at the bottom, making it unsightly, and promotes light carrying of the bag without making the user feel any extra weight when carrying it.
This brings to mind the ingenious way that Japanese travelers used to travel, dividing their luggage into roughly two halves, tying the two halves together with a string, and carrying the middle part over their shoulder.
(5) When the loft pocket is made removable ([0011(2)) or removable from the bottom ([0011(3)), the bag is less likely to become boring: Both of these types create a completely open-top bag/semi-open-top bag, so the loft

It has multiple functions in addition to its functionality as a loft bag, making it a bag that is less likely to become boring to its owner, which is the biggest enemy of any bag.
It can be said that the Loft Pocket introduces a new functionality to pockets.
In particular, backpacks and drawstring bags for town use that have almost bag-shaped loft pockets are best suited to bags with removable bottoms (Figures 2(a) and (b)).
For the above reasons, it is convenient and desirable to design the loft pocket lid to be removable from the start.
(6) Loft Pockets and Loft Bags are Extremely Hygienic:
The loft pocket is located at the top of the bag and most items are taken in and out from the body side, so the interior as a whole has excellent ventilation and sunlight exposure, and the structure makes it easy to clean the inside, so the entire bag can be kept very hygienic.
(7) Loft bags are fun bags:
From the perspective of ideal bag use, the bag you use on a given day should be "something that you can use like a part of your body (it needs to be a bag that is sufficiently functional/ideal, which can be said to be a necessary condition for a bag), and something that you can enjoy using (it needs to be a bag that you won't get tired of and that satisfies your sense of playfulness, which can be said to be a sufficient condition for a bag)."
It may seem repetitive, but the ultimate goal/true aim of this developer and this product is to "provide a bag that the owner will never get tired of."
A loft bag is not a normal bag in which you simply drop things into it from the top. Instead, it has an opening on the body that allows light in, making the bottom of the inside of the bag brighter, making it easy to see the contents at a glance, and making it possible to take things in and out while naturally organizing them. In other words, it is a bag that lets you "play" with the things inside with your hands, and this act of "playing" has the potential to tickle and stimulate a sense of playfulness.
For example, just as a baseball player will secretly add his own ingenious features to his beloved gloves and mitts to satisfy his sense of fun, or be particular about the color of the materials, "tinkering" may stimulate the sense of play, leading to the search for a playground and the development of something like a secret base.
Examples of such playgrounds/secret bases that the developer can think of include:
(a) A "hanging pocket" is created with a long leather string, and the bag opening is not built-in (not fixed), allowing the contents to move freely around the bag depending on the situation.
It's like a "mobile pocket."
The end of the long leather strap is fastened somewhere inside the bag with a hook and eye fastener or the like.
(Transport pockets are also available for non-loft bags in general) (Figure 9).
(b) A tote bag in the shape of a loft bag with a gusset has a folding screen-shaped partition wall attached to the back of either the left or right gusset (inside the bag) at an appropriate height to connect the back sides of the opposing front and rear torso sections, creating a space that can be folded freely like a folding screen, and can be used as a pocket without a lid, for example, to store similar bulky items together.
It is a so-called "gathering area pocket" (this pocket can be applied to both loft bags and non-loft bags, especially bags with wide gussets (Figure 10).
(c) A zipper opening that allows access to (b) is provided on one of the gussets of a loft bag type tote bag having a gusset width, for example, on the side of the gusset on which the above-mentioned (b) is provided (Figure 11).

[0014] Due to the advantages described above, the Loft Bag is "a bag that gives the bag pockets the best position" and "a bag that stimulates playfulness and that you will not easily get bored of."

This is the case of a tote bag (handles are not shown below). This is a diagonal front view of a bag with a loft pocket that is a "built-in type". The loft pocket is fitted into the top part of the tote bag in the same way that the inner lid of a mess tin is pushed into the mess tin body from above. The pocket and the top end of the bag are overlapped and the top end is sewn together to make it a built-in bag. The pocket lid is also built-in and does not open, only the zipper opening opens. A bag that only enjoys the loft bag function. This is the case of a tote bag. This is a front view and an exploded view of a bag with a loft pocket that can be attached/detached. The loft pocket is a type that fits into the lid inside the mess tin. Attaching/detaching the bag is reliable/convenient/practical if you attach/detach it by properly attaching hook-and-loop tape (Velcro) to the pocket and the top end of the bag. If you remove the loft pocket, you can enjoy the bag's full open-top functionality. The lid is of a type that can be attached/detached. This is the case of a tote bag. A diagonal front view and an exploded view of a bag with a loft pocket that can be removed from the bottom. The loft pocket is a type that fits into the mess bin. The pocket can be either built into the bag or removable, but the pocket lid must be removable. When the pocket is removed from the bottom, the bag can also function as a semi-open top bag. This is the case with shoulder bags. The loft pocket is made separately and then attached to the main body, which is made separately, to create a vertical two-chamber structure. The loft pocket and the main body are connected by a fastener, hook-and-loop tape (Velcro), spring hook, etc., so that they can be attached and detached. First, make a rectangular box-shaped loft pocket separately. Next, make the bag body from a cylindrical object that is open at the top and bottom, and adjust the circumference of the object to be roughly the same as the total length of the pocket's four rectangular sides. Turn the cylindrical object inside out (turn it inside out) and place it snugly over the loft pocket, aligning the bottom end of the cylindrical object with the bottom end of the loft pocket, and then sew the two together. Turn the cylindrical object inside out again and attach the "bottom leather" to complete the bag. This diagram shows the assembly process. This is the case of a drawstring bag. This is a diagonal front view and exploded view of a loft bag made by sewing a bottom-opening "bottom leather" (17) inside the bag at a moderate depth from the top of the bag, cutting the bag body like a ring and dividing it. If the bag material is soft, one method is to sew a "thin annealed iron wire" around the "bottom leather" (17) to help maintain the shape. When the bottom is opened, it can also function as a semi-open-top bag. The bottom-opening part is fastened to the inside of the bag with hook-and-loop tape (Velcro), spring hooks, etc. This is the case of a drawstring bag. First, a bag body is made with a bottom-opening "bottom leather" (17) attached so that it covers the entire top. Then, a tubular bag with a circumference of approximately the same length as the circumference of the "bottom leather" (17) is made, which is open at the top and bottom. It is turned inside out and tightly covered over the body. The top end of the tube is aligned with the top end of the body and sewn together. Then, the tube is turned inside out again and rolled up tightly upwards, and the top end is tied with a string to complete the bag. The depth of the pocket can be freely determined according to the balance with the body. The combination of the material/color of the pocket and the body can also be freely determined. If the bottom is opened, it can also function as a semi-open-top bag. The method of processing the bottom-opening part is the same as in Figure 2 (9). This figure shows the assembly process. This is an oblique front view of a tote bag with an inverted U-shaped zipper opening on the front body and an inverted U-shaped zipper opening on the back body. This is a front view and a diagonal front view of a tote bag with a Y-shaped zipper opening (the handle and loft pocket are omitted below). The opening can be used like a double door. A front view and a diagonal front view of a tote bag with an inverted U-shaped zipper opening 1A and 1B are a front view and a diagonal front view of a tote bag having an inverted L-shaped zipper opening. This is a front view and a diagonal front view of a tote bag with an inverted V-shaped zipper opening. This is a front view and an oblique front view of a tote bag with a rectangular cut-out in the body, a protruding window type, and a large accordion gusseted opening. FIG. 1 is a diagram of a moving pocket. (b) is a diagram of a tote bag with a pocket for storing items. (b) is a diagram of a space bent like a folding screen. This is a tote bag with a zipper opening on the gusset side.

This bag places importance on the state of the pockets (volume/shape/location) of the bag, focuses on the existence of an empty space that usually occurs inside the top opening, which is the opening for putting things in and taking things out of the bag, and provides a pocket in the empty space, greatly expanding the storage possibilities and dramatically improving the functionality.

As a means to achieve this, the bag is designed to have a lid that covers the entire top opening, a moderate depth, a large capacity, and a roughly rectangular box-like or bag-like shape.
(1) A pocket that is built into the bag.
(2) The pocket can be attached to the bag and detached from it.
(3) A bag in which a pocket (hereinafter referred to as a loft pocket) that can be removed from the bottom is attached to the top part of the bag in an attic style, covering the entire top, and except for the loft pocket, items are inevitably put in and taken out from the front and rear sides. When putting things in and taking things out, the opening acts as a "light intake" to make the bottom of the bag even brighter and the entire inside can be seen, making it extremely easy to take things in and out while organizing the bag (hereinafter referred to as a loft bag).

To provide a bag with a large, removable pocket at the top of the bag, which increases the versatility of the pocket's storage space and is suitable as a bag in which putting things in the pocket helps to adjust the weight balance of the entire bag, and at the same time, it can be used as an open-top bag and things can be easily and enjoyably taken in and out from the body side, making it an ideal bag that is unlikely to become boring.

1. Lid (built-in)
2. Zipper opening on the lid 3. Loft pocket 4. Threads for sewing the main body and the loft pocket together 5. Main body 6. Inverted U-shaped zipper opening 7. Lid (attachable to/detachable from the loft pocket)
8. Hook-and-loop fastener (Velcro)
9. "Bottom leather" with a bottom cutout (with zipper opening)
10. Lid (attachable/detachable to the part where the main body and loft pocket are sewn together)
11, bottom cut-out part 12, shoulder belt 13, independently made loft pocket 14, zipper opening 15 of 13, main body 16 corresponding to 13, drawstring tying part 17, bottom cut-out "bottom leather" for drawstring bag
18, 17: Spring hook fastening part 19 of the bottom-removed part, main body 20 of the drawstring bag, cylindrical part (part forming the loft pocket of the drawstring bag with a drawstring)
21, main body of a drawstring bag with bottom leather attached to the top opening so that the bottom can be removed 22, inverted L-shaped zipper opening 23, Y-shaped zipper opening 24, inverted L-shaped zipper opening 25, trunk cutout (rectangular), protruding window type/large accordion type gusseted opening 26, portable pocket 27, gathering area pocket (a), (b) are top views 28, front trunk side 29, rear trunk side 30, zipper opening 31 for accessing 27, independently made loft pocket 32, zipper opening 33 for 31, rectangular tubular object (part that becomes the main body of the bag)
34. Bottom leather for the bag

This bag focuses on the empty space that usually appears near the top of a bag when something is put inside, and has a pocket with a lid attached to the empty space so as to completely cover the top opening, like an attic. This bag requires that things are put in and taken out from the front and back sides of the bag, and the pocket is "built into the bag", "removable from the bag", and "can be pulled out from the bottom", dramatically expanding the functionality of the bag.

The two objectives of placing more importance on the pockets (capacity, shape, location) in the bag, carefully considering the weight distribution of the items in the bag, and making the bag easy to carry were achieved by utilizing the space around the top opening of the bag,
We propose a bag that solves all these problems at once by providing a pocket with a bottom that is parallel to the bottom of the bag .

A pocket that covers the entire top opening of the bag, has a lid , and has a bottom that is parallel to the bottom of the bag , and is constructed in such a way that (1) the entire pocket is built into the bag;
(2) A type in which the entire pocket can be attached to/detached from the bag;
(3) A type in which the bottom can be removed using the pockets of both types (1) and (2),
This bag has a loft-style pocket attached to the top of the bag so as to cover the entire top, and except for the pocket, things are inevitably taken in and out through openings provided on the front and rear sides of the bag, and when taking things in and out, the openings play the role of "light intake," making the bottom of the bag even brighter, making it extremely easy to take things in and out while organizing (hereinafter, the pocket and bag will be referred to as loft pockets and loft bags, respectively).
Because the loft pocket has a base that is parallel to the bottom of the bag, it greatly expands the variety of sizes, shapes, and ways of storing items (e.g., facing up, facing sideways, etc.) that can be put inside. At the same time, it makes it possible to make the pocket in the types (1) to (3) shown below, thereby enabling it to function as an open-top bag or a semi-open-top bag, thereby introducing a new function for the pocket and further enhancing its functionality.

The advantages of the loft bag are as follows: (1) The loft pockets can store a variety of items:
Because the shape is that of a pocket with a bottom parallel to the bottom of the bag , items can be placed either sideways or upright, allowing for the storage of items with complex shapes or delicate materials that require careful handling, as well as bulky items such as cosmetics or medicine bottles with large differences in shape and size.
(2) The loft pocket is breathable, sunny, bright and hygienic:
Located at the top of the bag, it is well ventilated and exposed to sunlight, making it ideal for storing items that require hygienic care.
(Example: spare mask/handkerchief/pocket tissue, etc.).
(3) Loft pockets allow frequent and quick access to items:
Because it is located at the top of the bag, the inside of the pocket is bright and easy to see, making it ideal for storing items that need to be taken out and put back in frequently and quickly.
(Examples: smartphones, glasses (in case)/without case), etc.).
(4) The loft pocket helps to balance the weight of the bag:
Putting things in the loft pockets already measures the weight balance inside the bag to a certain extent, and furthermore, if necessary, it is possible to redistribute the weight by moving some of the things in the main body to the loft pockets, which prevents the bottom of the bag from bulging out abnormally like a person sitting on their bottom due to the contents of the bag being too concentrated at the bottom, making it unsightly, and promotes light carrying of the bag without making the user feel any extra weight when carrying it.
This brings to mind the ingenious way that Japanese travelers used to travel, dividing their luggage into roughly two equal parts, tying the two halves together with a string, and then carrying the middle part over their shoulder.
(5) When the loft pocket is of a removable type ([0011] (2)) or a bottom-removable type ([0011] (3)), the owner is less likely to get bored of the bag: Both of these types create a completely open-top bag/semi-open-top bag, so that the owner can enjoy bag functions that are clearly different from those of a loft bag, and can enjoy multiple functions in addition to the loft bag function, making the bag less likely to become bored of the bag, which is the greatest enemy of any bag.
It can be said that the Loft Pocket introduces a new functionality to pockets.
In particular, backpacks and drawstring bags for town use are best suited to bags with removable bottoms (Figures 2(a) and (b)).
For the above reasons, it is convenient and desirable to design the loft pocket lid to be removable from the start.
(6) Loft Pockets and Loft Bags are Extremely Hygienic:
The loft pocket is located at the top of the bag and most items are taken in and out from the body side, so the interior as a whole has excellent ventilation and sunlight exposure, and the structure makes it easy to clean the inside, so the entire bag can be kept very hygienic.
(7) Loft bags are bags that stimulate your sense of playfulness: In terms of ideal bag usage, the bag you use that day should be "something you can use like a part of your body (it needs to be a bag that is sufficiently functional/ideal, which can be said to be a necessary condition for a bag), and something that you can enjoy using (it needs to be a bag that you will not tire of and that satisfies your sense of playfulness, which can be said to be a sufficient condition for a bag)."
It may seem repetitive, but the ultimate goal/true aim of this developer and this product is to "provide a bag that the owner will never get tired of."
A loft bag is not a normal bag in which you simply drop things into from the top. Instead, it has an opening on the body that allows light in, making the bottom of the inside of the bag brighter, making it easy to see the contents at a glance, and making it possible to take things in and out while naturally organizing them. In other words, it is a bag that lets you "play" with the things inside with your hands, and this act of "playing" has the potential to tickle and stimulate a sense of playfulness.
For example, just as a baseball player will secretly add his own ingenious features to his beloved gloves and mitts to satisfy his sense of fun, or be particular about the color of the materials, "tinkering" may stimulate the sense of play, leading to the search for a playground and the development of something like a secret base.
Examples of such playgrounds/secret bases that the developer can think of include:
(a) Create a "hanging pocket" with a long leather string, and do not attach it to the bag (fix it), but allow it to move freely around the bag along with the items inside depending on the situation.
It's like a "mobile pocket."
The end of the long leather strap is fastened somewhere inside the bag with a hook and eye fastener or the like.
(Transport pockets are also available for non-loft bags in general) (Figure 9).
(b) A tote bag in the shape of a loft bag with a gusset has a folding screen-shaped partition wall attached to the back of either the left or right gusset (inside the bag) at an appropriate height to connect the back sides of the opposing front and rear torso sections, creating a space that can be folded freely like a folding screen, and can be used as a pocket without a lid, for example, to store similar bulky items together.
It is a so-called "gathering area pocket" (this pocket can be applied to both loft bags and non-loft bags, especially bags with wide gussets (Figure 10).
(c) A zipper opening that allows access to (b) is provided on one of the gussets of a loft bag type tote bag having a gusset width, for example, on the side of the gusset on which the above-mentioned (b) is provided (Figure 11).

This is the case of a tote bag (handles are not shown below). This is a diagonal front view of a bag with a loft pocket as a "built-in type". The loft pocket is fitted into the top part of the tote bag in the same way as the inner lid of a mess tin is pushed into the mess tin body from above. The pocket and the top end of the bag are overlapped and the top end is sewn together to make it a built-in bag. The pocket lid is also built-in and does not open, only the zipper opening opens. A bag that only enjoys the loft bag function. This is the case of a tote bag. This is a front view and an exploded view of a bag with a loft pocket that can be attached/detached. The loft pocket is a type that fits into the lid inside the mess tin. Attaching/detaching the bag is reliable/convenient/practical if you attach/detach it by properly attaching hook-and-loop tape (Velcro) to the pocket and the top end of the bag. If you remove the loft pocket, you can enjoy the bag's full open-top functionality. The lid is of a type that can be attached/detached. This is the case of a tote bag. A front view and exploded view of a bag with a loft pocket that can be pulled out from the bottom. The loft pocket is a type that fits into the mess bin. The pocket can be either built into the bag or removable, but the pocket lid must be removable. When the pocket is pulled out from the bottom, the bag can also function as a semi-open top bag. This is the case of a shoulder bag. The loft pocket is made separately and then attached to the main body, which is made separately, creating a typical vertical two-chamber structure. The loft pocket and the main body are connected by a fastener, hook-and-loop tape (Velcro tape, spring hooks, etc., so that they can be attached and detached. First, make a rectangular box-shaped loft pocket separately. Next, make the bag body from a cylindrical object that is open at the top and bottom, and adjust the circumference of the object to be roughly the same as the total length of the pocket's four rectangular sides. Turn the cylindrical object inside out (turn it inside out) and place it snugly over the loft pocket, aligning the bottom end of the cylindrical object with the bottom end of the loft pocket, and sew the two together. Turn the cylindrical object inside out again and attach the "bottom leather" to complete the bag. This diagram shows the assembly process. This is the case of a drawstring bag. This is a diagonal front view and exploded view of a loft bag made by sewing a bottom-opening type "bottom leather" (17) inside the bag at a moderate depth from the top of the bag, dividing the bag body like a ring. If the bag material is soft, one method is to sew "thin annealed iron wire" around the "bottom leather" (17) to help maintain the shape. If the bottom is removed, it can also function as a semi-open-top bag. The bottom-opening part is fastened to the inside of the bag with hook-and-loop tape (Velcro), spring hooks, etc. This is the case of a drawstring bag. First, a bag body is made with a bottom-opening "bottom leather" (17) attached to cover the entire top, and a top-opening tubular part with a circumference of approximately the same length as the circumference of the "bottom leather" (17) is made. Turn it inside out and place it tightly over the body. The top end of the tube is aligned with the top end of the body and sewn together. Then, the tube is turned inside out again and rolled up tightly upwards, and the top end is tied with a string to complete the bag. The depth of the pocket can be freely determined according to the balance with the body. The combination of the material/color of the pocket and the body can also be freely determined. When the bottom is opened, the bag can also function as a semi-open-top bag. The method of processing the bottom-opening part is the same as in Figure 2(a). This figure shows the assembly process. This is an oblique front view of a tote bag with an inverted U-shaped zipper opening on the front body and an inverted U-shaped zipper opening on the back body. This is a front view and a diagonal front view of a tote bag with a Y-shaped zipper opening (the handle and loft pocket are omitted below). The opening can be used like a double door. A front view and a diagonal front view of a tote bag with an inverted U-shaped zipper opening 1A and 1B are a front view and a diagonal front view of a tote bag having an inverted L-shaped zipper opening. This is a front view and a diagonal front view of a tote bag with an inverted "H" shaped zipper opening. This is a front view and an oblique front view of a tote bag with a rectangular cut-out body, a protruding window type, and a large accordion gusseted opening. FIG. 1 is a diagram of a moving pocket. (b) is a diagram of a tote bag with a pocket for storing items. (b) is a diagram of a space bent like a folding screen. This is a tote bag with a zipper opening on the gusset side.

As a means to this end, the bag is constructed with a pocket that covers the entire top opening, has a lid, and has a bottom that is parallel to the bottom of the bag.
(1) A pocket that is built into the bag.
(2) The pocket can be attached to the bag and detached from it.
(3) A bag in which a pocket (hereinafter referred to as a loft pocket) that can be pulled out from the bottom of both types of pockets (1) and (2) is attached to the top part of the bag in an attic style so as to cover the entire top part, and except for the loft pocket, items are inevitably put in and taken out from the front and rear sides. When putting things in and taking things out, the opening plays the role of a "light intake" making the bottom of the bag closure even brighter and allowing a view of the entire inside, making it extremely easy to take things in and out while organizing the bag (hereinafter referred to as a loft bag).

平行に設けたことで、ポケットの収納の夛様性がひろがり、ポケットに物を入れることが、バッグ全体の重量バランスの調整に役立つバッグとして好適であり、同時にオープントップのバッグとしても使えて、物の出し入れも胴側から楽に、楽しく出来るので、仲々に「飽き」の来にくいバッグとして最適である。 The present invention provides a removable

By providing the pockets in parallel, the variety of storage possibilities is expanded, and putting things in the pockets is useful for adjusting the weight balance of the entire bag, and at the same time, it can be used as an open-top bag and things can be easily and enjoyably put in and taken out from the body side, making it an ideal bag that you will not easily get bored of.

Claims (2)

This bag was designed with an emphasis on the design of the pockets (capacity/shape/location).
This bag focuses on the existence of empty space that usually forms around the inside of the top opening, which is the opening for putting things in and taking things out of a bag, and provides a pocket in the space, greatly expanding the storage space and dramatically improving its functionality. As a means for achieving this, the bag has a roughly-sized, roughly-rectangular box-like or bag-like shape with a moderate depth and a large capacity, with a lid that covers the entire top opening of the bag (the entire top of the main compartment in the case of a multi-compartment bag), and is made as follows:
1) The pocket is built into the bag.
2) The pocket can be attached to or detached from the bag.
3) A type in which the bottom of the pocket can be removed in both types 1) and 2) above.
The pockets are attached to close the entire top of the bag (the entire top of the main compartment in the case of a multi-compartment bag) in the style of an "attic" as it is called in the construction industry, and items are inevitably taken in and out from the front and rear torso sides, except for the pockets (hereinafter, the pockets and bags are referred to as loft pockets and loft bags, respectively. Loft is an English word that translates to "attic" in Japanese), and has the following advantages (Figs. 1(a)-(b)-(c)-(d)-(e), Figs. 2(a)-(b)):
(1) The loft pockets can store a variety of items:
The shape is roughly rectangular, box-like or bag-like, and the pockets have a large capacity, so you can place items freely, either facing up or sideways, and you can store items with complex shapes or delicate materials that require careful handling, or items that are bulky like cosmetics or medicine bottles and have large differences in shape and size.
(2) Loft pockets are breathable, sunny, bright and hygienic:
Located at the top of the bag, it is ideal for storing items that require hygiene care (e.g. spare masks/handkerchiefs/tissues, etc.).
(3) Loft pockets allow frequent and quick access to items:
Located at the top of the bag, it is bright and easy to see inside, making it ideal for storing items that need to be taken out and put back in frequently and quickly (e.g. smartphones, glasses, etc.).
(4) The loft pocket helps to balance the weight of the bag:
Putting things in the loft pockets already balances the weight inside the bag to some extent, and if necessary, some of the items in the main body can be moved to the loft pockets to redistribute the weight, preventing the bottom of the bag from swelling unsightly like a person sitting on their buttocks due to the contents being concentrated too much at the bottom, and encouraging a lighter bag to be carried without feeling any extra weight. This brings to mind the ingenious way travelers in Japan used to travel, dividing their luggage into roughly two halves, tying the two halves together with a string, and carrying the middle part over their shoulder.
(5) When the loft pocket is of the type 2) or 3), the bag is not likely to become boring: When the loft pocket is removed from type 2, it creates a completely open-top bag, and when the bottom is removed from type 3, it creates a semi-open-top bag, so it is difficult to get tired of the original loft bag.

It is also functional, and combined with its loft bag function, it has multiple bag functions, making it a bag that is less likely to become boring to its owner, which is the biggest enemy of any bag.
This can be said to have introduced a new function for the pocket.
In particular, for backpacks and drawstring bags for town use (used in urban areas) that have loft pockets that are almost bag-shaped, 3) a loft pocket type that allows the bottom to be removed is optimal (Figures 2 (a) and (b)).
(6) Loft bags can be enjoyed with a variety of openings of different shapes and constructions (Figure 3):
The structure of the loft bag requires that the openings for items to be inserted and removed from the front and rear torso can be freely placed on both sides of the bag, or on just one side. However, the bag can be made in the following main styles using current technology and techniques:
(a) Y-shaped zipper closure (Figure 4)
(b) Inverted U-shaped zipper closure (Fig. 5)
(c) Inverted L-shaped zipper closure (Fig. 6)
(d) Inverted “H”-shaped zipper closure (Fig. 7)
(e) Hollowed out body (rectangle, etc.)
Projecting window type with large accordion gusset (Fig. 8)
The action of taking things in and out from the front or back of the bag rather than from the top is similar to the act of adding firewood while being careful not to extinguish the opening in a stove or fireplace, and can be done naturally. Also, when taking things in or out, the bottom of the inside of the bag becomes very bright as the opening acts as a "light intake", making it easy to see inside the bag and making it easy to take things in and out while "organizing". The act of organizing is similar to the act of fiddling with your hands, and this bag greatly stimulates and tickles your sense of playfulness.
(7) Loft Pockets and Loft Bags are Extremely Hygienic:
The loft pocket is located at the top of the bag and most items are taken in and out from the body side, so the inside of the bag has excellent ventilation and sunlight exposure, and the structure makes it easy to clean the inside, so the entire bag can be kept very hygienic.
(8) Regardless of the make/shape (as described in claim 2) of the loft bag developed herein, the concept is to "place a pocket with a generous capacity and shape at the top of the bag." Since this concept has the advantages of (1) to (7) above, the loft bag can be summarized as "a bag that provides the best position (optimal place) for the bag pocket." Loft bags are made in two main ways, depending on how the pockets are made and how they are attached to the bag body.
(1) The first type is:
(a) A type in which the pocket is fitted into the bag body (Figs. 1(a) (b) (c)).
(b) A type in which a partition-like "bottom leather" that forms the bottom of the pocket is attached inside the bag body at a moderate depth from the top of the bag body by cutting the entire bag into parallel slices (Figure 2(a)).
(2) The second type is:
(a) A type in which the pocket and the bag body are joined vertically, with the pocket on top.
A practical method of joining is to use fasteners, hook-and-loop tape, spring hook fasteners, etc. that can be attached and detached (Figure 1 (d)).
(b) A method in which a cylindrical object that opens at the top and bottom and that will become the main body of the bag is turned inside out and placed over a separately prepared pocket, the ends of both objects are aligned and sewn together with thread, and then the cylindrical object is turned inside out again and the end is attached to the bottom.
A cylindrical object that is open at the top and bottom and that will become a pocket is turned inside out and placed over a separately prepared bag body, and the ends of both are aligned and sewn together with thread. After that, the cylindrical object is turned inside out again and a lid is attached to the end or a string is tied: method (Fig. 1(e) and Fig. 2(b)).
(3) For both (1) and (2) above, it is practical to make the bottom of the pocket removable and the lid removable. The size (capacity) of the cylindrical object can be determined as desired.
(4) The pockets and bags described in (1) and (2) above are loft pockets and loft bags having the functions and advantages described in claim 1.

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