bag

Abstract

It can be used in multiple ways (shoulder bag, backpack, handbag), has excellent load distribution and portability, and maintains a beautiful silhouette when in use. The bag comprises D-rings 31, 31 arranged near the bottom of the outer surface of the bag body 1 and engaging with snap hooks 32, 32 on both ends of a belt 2, and moldings 41-44 that hold the belts 2, 2 engaged with the fastening portions 31, 31 on the outer surface of the bag body 1. The ends of the belt 2 are held parallel to the outer surface of the bag body 1 by holding members 41-44 on both the front and back sides of the bag body 1 to form a shoulder bag, the belts 2, 2 are held crosswise on the outer surface of the bag body 1 by holding members 41-44 on either the front or back side of the bag body 1, and are released from holding the belt 2 on the other side of the bag body 1 to form a backpack, and a pair of short belts 5 arranged on each side of the bag body 1 are engaged with D-rings 45a, 46a to form a handbag.

Description

[Technical Field]

[0001] This invention relates to a bag that can be used as a shoulder bag, backpack, or handbag depending on the user's needs, and in particular to a bag that can be flexibly changed into any of these forms by changing the connection state of the belt. [Background technology]

[0002] In recent years, there has been an increasing demand for multifunctional bags that can be used in a variety of situations, such as commuting to work or school, shopping, etc. In particular, bags that can be carried in multiple ways in one have attracted attention, and for example, bags with a so-called 2-way structure that can be used as both a shoulder bag and a backpack are known (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 6-11521 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with conventional multi-functional bags, it is often cumbersome to remove and replace the strap when switching between usage modes, and the structure is also complicated, which can result in uneven loads being placed on the stitching and joints.In addition, with conventional 2-way bags that can be used in a backpack form, some bags can be converted into backpack form by changing the strap used when using them as a shoulder bag, but because the integration of the belt with the bag body is not taken into consideration, when worn as a backpack, the bag may be positioned too low on the user's back, or the posture and shape of the bag may be distorted, resulting in an untidy silhouette when worn on the back.

[0005] Therefore, the purpose of this invention is to provide a bag with a simple structure that can be used in multiple ways (shoulder bag, backpack, handbag) by changing the connection state of the belt to the bag body, has excellent load distribution and portability, can be used flexibly according to the user's needs, and can maintain a beautiful silhouette when in use. [Means for solving the problem]

[0006] The present invention relates to a bag that can be used in multiple ways by switching the connection mode of the belt to the bag body, and includes the following components: A fastening means is arranged on the outer surface of the bag body, particularly near the bottom. This is configured to detachably engage with the engagement portions on both ends of the belt, providing a fixed starting point for the belt; A retaining member holds the belt along the outer surface of the bag body when engaged with the fastening means. This secures the belt to the outer surface in a predetermined state and maintains its shape; The belt is configured as a pair of belts, and the retaining member is configured to hold the belts in a parallel or crossed state.

[0007] Furthermore, the holding member is sewn to the outer surface of the bag as a sheet member, and multiple communication parts are formed inside, and the holding state can be switched by selectively passing a belt through them. This allows it to be used as a shoulder bag in the parallel holding state and as a backpack in the cross holding state. Furthermore, by using short belt members placed on both sides of the bag body, it can be converted into a tote bag form. [Effects of the Invention]

[0008] The simple holding mechanism of this invention allows the bag to be carried in multiple ways (shoulder bag, backpack, or handbag) simply by switching the connection state of the belt, greatly improving usability. Furthermore, since the holding mechanism can be incorporated without compromising the appearance of the bag itself, it can be used for a variety of purposes, including business.

[0009] According to this invention, simply changing the way the belt is attached to the bag body allows users to change the usage style. This allows users to flexibly change the shape of the bag depending on the situation, the amount of luggage, and the carrying style, greatly improving convenience and comfort. In addition, the structure that secures the belt to the outer surface of the bag body prevents the belt from slipping or loosening during use, providing a stable fit.

[0010] The pair of straps can be held parallel to the exterior surface of the bag, allowing the bag to be used stably as a shoulder bag. The parallel strap arrangement increases the contact area with the body, improving the load distribution effect and reducing the burden on the shoulders. It also maintains a neat and tidy appearance, making it suitable for business use.

[0011] Furthermore, the belts are held in a crossed position on the outer surface of the bag body, so when the bag is worn as a backpack, the belts fit securely to the body, providing a stable fit. The crossed position effectively distributes the load, especially when carrying heavy loads, reducing fatigue even when used for long periods of time.

[0012] By providing a holding structure that can be used in both parallel and crossed positions, the bag can be freely switched between shoulder bag and backpack form depending on the user's preference and the situation. This allows a single bag to be used in multiple ways, expanding its range of uses. In addition, the integrated holding structure eliminates the need for adding or replacing parts, making manufacturing and management more efficient.

[0013] In particular, the configuration using a sheet-shaped holding member with a communicating section makes it possible to easily switch the holding state (parallel / crossed) by selecting the insertion position of the belt, and it is also possible to release the holding state by not inserting it into the communicating section. In this way, the ability to quickly change the holding state without the need for tools dramatically improves usability and provides excellent practical operability.

[0014] The bag can be used in three ways (3WAY) by holding the pair of belts parallel to both the front and back of the bag body, as a shoulder bag, by crossing one side and releasing the other, as a backpack, and by placing short belts on both sides as a handbag. This allows users to choose the optimal usage style depending on the situation, the user's physical characteristics, and the amount of luggage they carry, and provides an excellent bag that combines functionality, portability, and design, and also maintains a beautiful silhouette when in use. [Brief explanation of the drawings]

[0015] [Figure 1] 1A and 1B are perspective views of a bag according to a first embodiment, in which (a) shows the backrest side in rucksack form, and (b) shows the exterior side. [Figure 2] 1A and 1B are perspective views of a bag according to a first embodiment, in which (a) shows the backrest side in shoulder bag form, and (b) shows the exterior side. [Figure 3] 10A and 10B are perspective views of a bag according to a modified example of the first embodiment, in which (a) shows the exterior surface side in backpack form, and (b) shows the exterior surface side in shoulder bag form. [Figure 4] 10A and 10B are perspective views of a bag according to a modified example of the first embodiment, in which (a) shows the exterior surface side in backpack form, and (b) shows the exterior surface side in shoulder bag form. [Figure 5] 10A and 10B are perspective views of a bag according to a second embodiment, in which (a) shows the bag in a rucksack form and (b) shows the bag in a shoulder bag form. [Figure 6] 10A and 10B are plan views of a bag according to a second embodiment, in which (a) shows the backrest side in shoulder bag form, and (b) shows the exterior side. [Figure 7] 10A and 10B are plan views of a bag according to a second embodiment, in which (a) shows the backrest side in rucksack form, and (b) shows the exterior side. DETAILED DESCRIPTION OF THE INVENTION

[0016] The following describes embodiments of the components of the present invention with reference to the drawings. The bag of the present invention is a multi-mode bag that can be used in three different ways: as a shoulder bag, a backpack, or a handbag. However, the embodiments of the components of the present invention are not limited to the following embodiments, and various forms may be adopted as long as they fall within the technical scope of the present invention.

[0017] [First embodiment] A first embodiment will be described below. Figures 1 and 2 show a bag according to this embodiment. (1) Overall structure 1 and 2, the bag according to this embodiment can be used in a variety of ways by switching the connection of the belts 2, 2 to the bag body 1, and in this case, it can be used in three ways: as a backpack, a shoulder bag, or a handbag. In this embodiment, a short belt 5 can be detachably engaged with the bag body 1, and by holding this short belt 5, it can also be used as a handbag. Holding members 4 (41, 43, and 44) ​​are sewn to the outer surface (front and back) of the bag, and loops (41a or 43a) are formed vertically inside the holding members 4 as communication sections. Also, D-rings 31, 31 (e.g., D-rings) are arranged near both ends of the bottom of the bag as fastening means, allowing the snap hooks on both ends of the long belts 2, 2 to be fastened. Furthermore, short belts 5 are provided on both sides of the upper part of the bag body for carrying by hand.

[0018] Fig. 1 shows the backpack form, and Fig. 2 shows the shoulder form. In Fig. 1 and Fig. 2, (a) is a front view showing the backrest side, and (b) is a rear view showing the exterior side. As shown in these figures, a D-ring 31 serving as a fastening means is arranged near the bottom of the outer surface of the bag body 1, and snap hooks 32, which are engagement parts on both ends of the belt 2, are engaged with this D-ring 31. Moldings 41 and 43 serve as holding members that hold the belt 2 on the outer surface of the bag body 1 when engaged with this D-ring 31.

[0019] The belts 2 are a pair of belts, each with a snap hook 32 attached to both ends. The mole 41 is a holding member that is placed on the side that comes into contact with the user's back when the bag is worn in the backpack form (the back support surface), and as shown in Fig. 2(a) , in the shoulder bag form, loops 41a, 41a through which the belts 2, 2 are inserted in the vertical direction are formed at the portion that holds the pair of belts 2, 2 in parallel on the outer surface of the bag body 1.

[0020] As shown in Figures 1(b) and 2(b), the mall 43 is a holding member that is placed on the side opposite the backrest side (exterior surface side) when the bag is in the backpack form, and has loops 43a, 43a formed on both ends through which the belts 2, 2 are inserted vertically. These loops 43a, 43a form an inverted trapezoid with a long upper side, and as shown in Figure 2(b), when the bag is in the shoulder bag form, the pair of belts 2, 2 can be inserted in a parallel state, or as shown in Figure 1(b), the belts 2, 2 can be inserted in a crossed state.

[0021] Furthermore, a square ring 44 is disposed above the molding 43 on the exterior surface side of the bag body 1, and as shown in Fig. 1(b), this square ring 44 is a holding member that holds the belts 2, 2 in a crossed state on the outer surface of the bag body 1. In this embodiment, the square ring 44 is disposed above the molding 43.

[0022] (2) How to use The bag according to this embodiment having the above configuration is used as follows. * Shoulder bag style When used as a shoulder bag, as shown in Fig. 2(a), both ends of the belt 2 are inserted through the loops 41a, 41a on both sides of the molding 41 on the backrest side. In this state, the snap hooks 32, 32 are engaged with the D-rings 31, 31 arranged inside the bottom of the bag body 1. Also, as shown in Fig. 2(b), on the exterior side, the snap hooks 32, 32 on both ends of the belt 2 are inserted through the loops 43a, 43a on both sides of the molding 43, and in this state, the snap hooks 32, 32 are engaged with the D-rings 31, 31 arranged outside the bottom of the bag body 1.

[0023] As a result, in the shoulder bag form, each of the pair of belts 2, 2 is maintained in an inverted U-shape on the backrest side and the exterior side, with both ends held parallel to each other, allowing the pair of belts 2, 2 to function as shoulder straps.

[0024] 〇Rucksack form When used as a backpack, as shown in Fig. 1(a), on the backrest side, the belts 2, 2 are released without being held by the molding 41, and the snap hooks 32, 32 at the ends of each belt 2, 2 are engaged with the D-rings 31, 31 arranged on the outside of the bottom of the bag body 1. Also, as shown in Fig. 1(b), on the exterior side, the snap hooks 32, 32 on the other end of each belt 2, 2 are inserted through square rings 44 and through loops 43a, 43a on both sides of the molding 43 so that the belts 2, 2 are crossed. In this state, the snap hooks 32, 32 on the other end of each belt 2, 2 are engaged with the D-rings 31, 31 arranged on the exterior side of the bottom of the bag body 1.

[0025] As a result, in the backpack form, the pair of belts 2, 2 are held in a crossed state on the exterior surface side of the bag body 1, while the belts 2, 2 are held in a released, parallel state on the other back support surface side, allowing the pair of belts 2, 2 to function as backpack straps.

[0026] 〇Handbag type In addition, the short belt 5 is detachable on the exterior surface and backrest surface of the upper part of the bag body 1, so that the bag can be converted into a handbag form at any time by attaching the short belt 5 in either the shoulder bag form or the backpack form, or even when the belts 2, 2 are removed. In the example shown in Figures 1 and 2, the short belt 5 is engaged with the bag body 1 via a square ring, but the present invention is not limited to this, and for example, the short belt 5 may be engaged with a detachable metal fitting such as a snap hook, or may be fixed by sewing, etc.

[0027] (Example of change) The above-described embodiment is merely an example of the present invention, and therefore the present invention is not limited to the above-described embodiment, and various modifications can be made depending on the design, etc., as long as they do not deviate from the technical concept of the present invention.

[0028] For example, the shapes and sizes of the moldings 41 and 43 in the above-described embodiment, and the configurations of the loops formed thereon (positions, sizes, numbers, etc.) can be appropriately modified according to the size, shape, and application of the bag, as shown in Figures 3(a) and 3(b). As shown in Figure 3, molding 43 may be narrowed in length and divided into two moldings, upper and lower, to form moldings 42 and 43, with four loops 42a, 42b, 43a, and 43b formed thereon. Furthermore, as shown in Figure 4, four D-rings 42c may be arranged in a row instead of the upper molding 42.

[0029] In these cases, when used as a shoulder bag, the belt 2 is inserted through the loops 41a, 41a on both sides of the molding 41 on the backrest side. In this state, the snap hooks 32, 32 are engaged with the D-rings 31, 31 on the bottom of the bag body 1. Then, as shown in FIGS. 3(b) and 4(b), the snap hooks 32, 32 on both ends of the belt 2 are inserted through the loops 42a, 42a on both sides of the molding 42 and the loops 43a, 43a on both sides of the molding 43 on the exterior side. In this state, the snap hooks 32, 32 are engaged with the D-rings 31, 31 on the bottom of the bag body 1. As a result, in the shoulder bag mode, each of the pair of belts 2, 2 is maintained in an inverted U-shape on both the backrest side and the exterior side, with both ends held parallel. The pair of belts 2, 2 functions as a shoulder belt.

[0030] On the other hand, when the bag is used as a backpack, the belts 2, 2 are not held by the molding 41 on the backrest side, but are released, and the snap hooks 32, 32 at the ends of each belt are engaged with the D-rings 31, 31 on the bottom of the bag body 1. Also, as shown in FIGS. 3(a) and 4(a), on the exterior side, the snap hooks 32, 32 on the other ends of the belts 2, 2 are inserted through the square hooks 44 so as to be crossed, and are also inserted through the central loop 42b of the molding 42 and the loops 43a, 43a on both sides of the molding 43. In this state, the snap hooks 32, 32 on the other ends of the belts 2, 2 are engaged with the D-rings 31, 31 on the bottom of the bag body 1. As a result, in the backpack mode, the pair of belts 2, 2 are held on the outer surface of the bag body 1 in a crossed state on the exterior side, while the belts 2, 2 are held in a released, parallel state on the other backrest side. The pair of belts 2, 2 can function as shoulder straps for a backpack.

[0031] (Actions and Effects) According to this embodiment, the bag can be used in three ways (3-way)—shoulder bag, backpack, or handbag—by simply switching the connection state of the belt 2 using a simple D-ring or a loop, greatly improving usability. Furthermore, the retention structure can be incorporated without compromising the appearance of the bag body 1, making it suitable for a variety of uses, including business. This allows the user to flexibly change the bag's configuration depending on the situation, amount of luggage, and carrying style, significantly improving convenience and comfort. Furthermore, the loop or D-ring that secures the belt to the outer surface of the bag body prevents the belt from slipping or loosening during use, providing a secure fit.

[0032] In particular, in the backpack form, the belts 2 are held on the outer surface of the bag body 1 in a state where they cross on the exterior side, making it possible to create a natural and balanced silhouette when the backpack is worn, ensuring usability and improving fashionability. This allows the optimal usage form to be selected according to a variety of situations, the user's physical characteristics, and the amount of luggage carried, and provides an excellent bag that combines functionality, portability, and design, and further maintains a beautiful silhouette when in use.

[0033] [Second embodiment] Next, a description will be given of a second embodiment. Figures 5 to 7 show a bag according to this embodiment. (1) Overall structure The bag according to the second embodiment is also a multi-mode bag that can be used in three different ways: as a shoulder bag, a backpack, or a handbag. Holding members 4 (41-44) are sewn to the outer surface (front and back) of the bag, and loops 4 (41a-43a) are formed vertically inside the holding members 4 as communication sections. D-rings 31, 31 (e.g., D-rings) are provided near both ends of the bottom of the bag as fastening means, allowing the snap hooks on both ends of the long belts 2, 2 to be fastened. A pair of short belts 5 are also provided on both the front and back of the upper part of the bag body for carrying by hand.

[0034] As shown in Fig. 5, the bag of this embodiment can be used in a variety of ways by switching the connection of the belts 2, 2 to the bag body 1, and here it can be used in three ways: as a backpack, a shoulder bag, or a handbag. In Fig. 5(a), (a) shows the backpack form, and (b) shows the shoulder bag form. In both Figs. 5(a) and (b), a short belt 5 is attached to the bag body 1, and by holding this short belt 5, the bag can also be used in a handbag form.

[0035] Fig. 6 shows the front and back of the bag in shoulder bag form, and Fig. 7 shows the front and back of the bag in backpack form. In Figs. 6 and 7, (a) is a front view showing the backrest side, and (b) is a rear view showing the exterior surface. As shown in these figures, a D-ring 31 serving as a fastening means is disposed near the bottom of the outer surface of the bag body 1, and snap hooks 32, which are engagement portions on both ends of the belt 2, are engaged with this D-ring 31. In addition, moldings 41, 42, and 43 are provided as holding members that hold the belt 2 on the outer surface of the bag body 1 when engaged with this D-ring 31.

[0036] The belts 2 are a pair of belts, each with a snap hook 32 attached to both ends. The mole 41 is a holding member that is placed on the side that comes into contact with the user's back when the bag is worn in the rucksack form (the back support surface), and in the shoulder bag form, as shown in Fig. 6(a), loops 41a, 41a through which the belts 2, 2 are inserted in the vertical direction are formed at the portion that holds the pair of belts 2, 2 in parallel on the outer surface of the bag body 1.

[0037] The molding 42 is a retaining member that is placed on the side opposite the backrest side (exterior surface) when the bag is in backpack form. As shown in Figure 6(b), loops 42a, 42a through which the belts 2, 2 are inserted vertically are formed in the area (here, both ends of the molding 42) that holds the pair of belts 2, 2 in parallel on the outer surface of the bag body 1, and as shown in Figure 7(b), a loop 42b is formed in the central area that holds the belts 2, 2 in a crossed state on the outer surface of the bag body 1.

[0038] As shown in Figures 7(a) and (b), the molding 43 is a holding member that is placed on the side opposite the backrest side (exterior surface) when the bag is in rucksack form, and has loops 43a, 43a formed on both ends through which the belts 2, 2 are inserted vertically. These loops 43a, 43a form an inverted trapezoid with a long upper side, and as shown in Figures 6(a) and (b), two pairs of belts 2, 2 can be inserted in a parallel state, or as shown in Figure 7(b), the belts 2, 2 can be inserted in a crossed state.

[0039] Furthermore, a square ring 44 is disposed above the molding 42 on the exterior surface side of the bag body 1, and as shown in Fig. 7(b), this square ring 44 is a holding member that holds the belts 2, 2 in a crossed state on the outer surface of the bag body 1. In this embodiment, the square ring 44 is disposed above the loop 42b in the center of the molding 42.

[0040] (2) How to use The bag according to this embodiment having the above configuration is used as follows. * Shoulder bag style When used as a shoulder bag, as shown in FIG. 6(a), on the backrest side, both ends of the belt 2 are inserted through the D-rings 46a, 46a at the top of the bag body 1, and then through the loops 41a, 41a on both sides of the molding 41. In this state, the snap hooks 32, 32 are engaged with the D-rings 31, 31 on the bottom side of the bag body 1. Also, as shown in FIG. 6(b), on the exterior side, the snap hooks 32, 32 on both ends of the belt 2 are inserted through the D-rings 45a, 45a located on both sides of the top of the bag body 1, and then through the loops 42a, 42a on both sides of the molding 42 and the loops 43a, 43a on both sides of the molding 43. In this state, the snap hooks 32, 32 are engaged with the D-rings 31, 31 on the bottom side of the bag body 1.

[0041] As a result, in the shoulder bag form, each of the pair of belts 2, 2 is maintained in an inverted U-shape on the backrest side and the exterior side, with both ends held parallel to each other, allowing the pair of belts 2, 2 to function as shoulder belts.

[0042] 〇Rucksack form When used as a backpack, as shown in Fig. 7(a), on the backrest side, the belts 2, 2 are released without being held by the D-rings 46a, 46a or the molding 41, and the snap hooks 32, 32 at the ends of each belt are engaged with the D-rings 31, 31 on the bottom of the bag body 1. Also, as shown in Fig. 7(b), on the exterior side, the snap hooks 32, 32 on the other end of each belt 2, 2 are inserted into the D-rings 45b, 45b located inside the upper part of the bag body 1, and then inserted into the square ring 44 so that both are crossed, and into the central loop 42b of the molding 42 and the loops 43a, 43a on both sides of the molding 43. In this state, the snap hooks 32, 32 on the other end of each belt 2, 2 are engaged with the D-rings 31, 31 on the bottom of the bag body 1.

[0043] As a result, in the backpack form, the pair of belts 2, 2 are held in a crossed state on the exterior surface side of the bag body 1, while the belts 2, 2 are held in a released, parallel state on the other back support surface side, allowing the pair of belts 2, 2 to function as backpack straps.

[0044] 〇Handbag type The short belt 5 can be attached detachably to the D-rings 45a, 46a located on the exterior surface and backrest surface of the upper part of the bag body 1, and the bag can be changed to a handbag form at any time by attaching the short belt 5 in either the shoulder bag form or the rucksack form, or even when the belts 2, 2 are removed. The short belt 5 may be fixed to the D-rings 45a, 46a by sewing or the like.

[0045] (Actions and Effects) According to this embodiment, the bag can be used in three ways (3-way)—shoulder bag, backpack, or handbag—by simply switching the connection state of the belt 2 using a simple D-ring or a loop, greatly improving usability. Furthermore, the retention structure can be incorporated without compromising the appearance of the bag body 1, making it suitable for a variety of uses, including business. This allows the user to flexibly change the bag's configuration depending on the situation, amount of luggage, and carrying style, significantly improving convenience and comfort. Furthermore, the loop or D-ring that secures the belt to the outer surface of the bag body prevents the belt from slipping or loosening during use, providing a secure fit.

[0046] In particular, in the backpack form, the belts 2 are held on the outer surface of the bag body 1 in a state where they cross on the exterior side, making it possible to create a natural and balanced silhouette when the backpack is worn, ensuring usability and improving fashionability. This allows the optimal usage form to be selected according to a variety of situations, the user's physical characteristics, and the amount of luggage carried, and provides an excellent bag that combines functionality, portability, and design, and further maintains a beautiful silhouette when in use.

[0047] The present invention is not limited to the above-described embodiments, and various modifications of the components can be made without departing from the spirit of the invention. Furthermore, various inventions can be created by appropriately combining the components disclosed in the above-described embodiments. For example, some components may be omitted from the entire components shown in the embodiments. [Explanation of symbols]

[0048] 1...Bag body 2,2...Belt 5...Short belt 31, 31...D-ring (locking means) 32, 32...Snap hook (engagement part) 41... Molding (back support surface side holding member) 42, 43... Molding (exterior surface side holding member) 41a...Loop (connecting part for maintaining parallelism on the backrest surface side) 42a...Loop (connection part for maintaining parallelism on the exterior surface side) 42b...Loop (exterior surface side cross-holding connection part) 42c...D-ring (exterior surface side cross-holding connection part) 43a...Loop (exterior surface side parallel / cross holding communication part) 44... Square ring (exterior surface side holding member) 45a...D ring (outside top of exterior surface) 45b...D-ring (inside the top of the exterior) 46a…D-ring (outside upper backrest)

Claims

1. A bag that can be used in multiple ways by switching the connection state of the belt to the bag body, a locking means disposed near the bottom of the outer surface of the bag body and engaged with the engaging portions at both ends of the belt; a holding member that holds the belt engaged with the fastening portion on the outer surface of the bag body; A bag characterized by comprising:

2. The belt is a pair of two belts, The holding member has a portion for holding the pair of belt ends in parallel on the outer surface of the bag body.

2. The bag of claim 1.

3. The belt is a pair of two belts, The holding member has a portion on either the front or back side of the bag body that holds the pair of belts on the outer surface of the bag body in a crossed state.

2. The bag of claim 1.

4. The belt is a pair of two belts, The holding member is a portion for holding the pair of belt ends parallel to each other on the outer surface of the bag body; a portion on either the front or back side of the bag body that holds the pair of belts on the outer surface of the bag body in a crossed state; 2. The bag of claim 1, further comprising:

5. The holding member is formed of a sheet material sewn to the outer surface of the bag body, and has a plurality of communication portions that communicate in the up-and-down direction of the bag body. By selecting one of the plurality of communication portions and inserting the pair of belts through it, part or all of the pair of belts can be held in a switched state between parallel and crossed, or by not inserting the belts through the communication portion, the holding state can be released.

5. The bag according to claim 4.

6. The two paired belt ends are held in parallel on the outer surface of the bag body by the holding members on both the front and back sides of the bag body to form a shoulder bag. The two pairs of belts are held by the holding member on the outer surface of the bag body in a crossed state on one side of the front or back of the bag body, and the two pairs of belts are released on the other side of the front or back of the bag body to form a backpack shape, A pair of short belt members arranged on the front and back sides of the bag body are detachably engaged with the holding members to form a hand-carrying form.

6. The bag according to claim 2, wherein the bag is made of a polyethylene terephthalate.

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