Combination carrying bag and backpack

Abstract

To provide a combination carrying bag and backpack which can be shouldered in a well-balanced form and which is for the purpose of effectively avoid coming off of the fixation of a shouldering string.SOLUTION: A combination carrying bag and backpack 3 is provided with two sheets of cardboard 22 which, in order to make two strings 21 extend with a prescribed space apart, one end parts 21Ea of the two strings 21 are each interposed and fixed, and are fastened in the bottom 1u of a bag body 1 or the rear side of a trunk 1m. In the bottom 1u of the bag body 1 or the rear side of the trunk 1m, there are provided a pair of lower holes 101 and, in the rear side and the front side of the opening 1o of the back body 1, there are provided a pair of first upper holes 102b and a pair of second upper holes 102a. The two strings 21 extending from the two sheets of cardboard 22 are each passed in a remote state in the order of the pair of lower holes 101, a pair of first upper holes 102b, and a pair of second upper holes 102a. In the pair of second upper holes 102a, the other end parts 21Eb of the two strings 21 extending from the two sheets of cardboard 22 are each fastened.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a bag that can be used as a handbag or backpack. [Background technology]

[0002] Conventionally, when carrying luggage, carrying relatively heavy luggage by hand can be troublesome and burdensome. In light of this, Patent Document 1 describes a shopping bag that can be carried by hand or on the back, for example. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Registered Utility Model Publication No. 3054918 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the shopping bag described in Patent Document 1 is made up of a single strap for carrying the bag on one's back, which can cause the bag to lose balance when carried on one's back. Also, in the shopping bag described in Patent Document 1, the strap is simply fixed to the lower part of the bottom surface, so if the shopping bag containing items is repeatedly lifted and placed down, it is expected that the strap's fixed part will be subjected to strain, causing it to break and become detached from the fixed part.

[0005] An object of the present invention is to provide a bag that can be used as both a handbag and a backpack, which can be carried in a well-balanced manner and has straps that are difficult to come undone. [Means for solving the problem]

[0006] A first embodiment of the tote / backpack bag according to the present invention is a tote / backpack bag comprising a bag body with a gusset structure having a mouth, a bottom, and a body part connecting the mouth and the bottom, and two strings of equal length that are attached to the bag body and function as a tote bag or a backpack by holding the bag body or by putting both arms through the strings. The two strings are fixed to the back side of the bottom or body part of the bag body by two sheets of equal size, with one end of each of the two strings being sandwiched between them so that the two strings extend at a fixed distance apart. The bag further comprises two sheets of paperboard having a pair of lower holes on the rear side of the bottom or body of the bag, and a pair of first upper holes and a pair of second upper holes on the rear side and front side of the mouth of the bag, and two strings extending from the two sheets of paperboard are passed through the pair of lower holes, the pair of first upper holes, and the pair of second upper holes, in that order, while being spaced apart, and the other ends of the two strings extending from the two sheets of paperboard are fixed to the pair of second upper holes, respectively.

[0007] A second form of the handbag / backpack bag of the present invention is described as the first form, characterized in that the body portion is composed of a front portion, a back portion, and a pair of side portions, the bottom portion is formed by overlapping a pair of first bottom flaps extending from the lower edges of the front portion and the back portion respectively, and a pair of second bottom flaps extending from the lower edges of the pair of side portions respectively, the pair of lower holes are provided at the boundary between the bottom portion and the back side of the body, and the two sheets of paperboard are fixed to the back side of the first bottom flap extending from the lower edge of the back portion so that the edges from which the two strings protrude are aligned with the boundary between the back side of the body and the bottom portion.

[0008] A third form of the handbag / rucksack bag of the present invention is the first form described above, characterized in that the body portion is composed of a front portion, a back portion, and a pair of side portions, the bottom portion is formed by folding a single lower side portion that extends from and is continuous with the lower edges of the front portion, the back portion, and the pair of side portions, the pair of lower holes are provided at the boundary between the bottom portion and the back side of the body, and the two sheets of paperboard are fixed to the back side of the back portion so that the edges from which the two strings protrude are aligned with the boundary between the back side of the body and the bottom portion.

[0009] A fourth form of the handbag / rucksack bag of the present invention is described as any one of the first to third forms, characterized in that a folded-back portion is provided around the periphery of the mouth of the bag body, and the pair of first upper holes and the pair of second upper holes are each provided by passing through overlapping portions of the sheet in the folded-back portions. Effect of the Invention

[0010] According to the present invention, the carrier / backpack bag has two straps of equal length for carrying the bag on the back, and the two straps are secured by sandwiching them between two sheets of paperboard, which are then secured to the bottom or back of the carrier / backpack bag, making it difficult for the two straps to come off the bag. [Brief description of the drawings]

[0011] [Figure 1] 1A is an overall perspective view of the front side of a combined handbag and backpack bag according to a first embodiment of the present invention, FIG. 1B is an overall perspective view of the rear side of the combined handbag and backpack bag, and FIG. [Diagram 2] 1A and 1B show a backpack strap part according to a first embodiment of the present invention, where (a) is a plan view and (b) is a cross-sectional view taken along the line IIb-IIb of (a). [Diagram 3]FIG. 1 is a plan view of two blanks of a bag body for a combined handbag and backpack in accordance with a first embodiment of the present invention, in which (a) is the back side, (b) is the front side, and (c) is a diagram showing the state after a backpack string part is attached to part IIIc of (a). [Figure 4] 10A is an overall perspective view of the front side of a combined handbag and backpack bag according to a second embodiment of the present invention, FIG. 10B is an overall perspective view of the rear side of the combined handbag and backpack bag, and FIG. [Diagram 5] FIG. 11 is a plan view of a single blank with the bag body of a combined handbag and backpack in accordance with a second embodiment of the present invention unfolded, where (a) is a blank including the back and front, and (b) is a diagram showing the state after a backpack string part has been attached to section Vb of (a). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the embodiment.

[0013] In the description of this specification, "rectangle" includes not only rectangular and approximately rectangular shapes, but also squares and approximately square shapes, and furthermore, "parallel" includes not only parallel but also approximately parallel, and "orthogonal" includes not only orthogonal but also approximately orthogonal.

[0014] First Embodiment FIG. 1 shows a combined handbag / backpack bag 3 according to a first embodiment of the present invention, with FIG. 1(a) being an overall perspective view from the front side, FIG. 1(b) being an overall perspective view from the back side, and FIG. 1(c) being a plan view of the bottom. FIG. 2 shows backpack strap parts 2 according to this embodiment, with FIG. 2(a) being a plan view, and FIG. 2(b) being a cross-sectional view taken along the IIb-IIb direction of FIG. 2(a). FIG. 3 shows two blanks 1Ba and 1Bb of a bag body 1 of a combined handbag / backpack bag 3 according to this embodiment, with FIG. 3(a) showing the back side, FIG. 3(b) showing the front side, and FIG. 3(c) showing the state in which the backpack strap parts 2 are attached to part IIIc of FIG. 3(a). For ease of explanation, FIG. 1 shows the combined handbag / backpack bag 3 in a see-through state.

[0015] The carrier / backpack bag 3 of the present invention is for storing items, and by adjusting the length of the string 21 between the first upper hole, the second upper hole, and the lower hole, it can function as both a carrier bag and a backpack. The carrier / backpack bag 3 is made of paper, and the surface may be coated for protection, or a design or mark may be printed on it to provide identification and aesthetic appeal.

[0016] As shown in Figs. 1 to 3, the tote / backpack bag 3 according to this embodiment is a tote / backpack bag 3 comprising a bag body 1 with a gusset structure having a mouth 1o, a bottom 1u, and a body 1m connecting the mouth 1o and the bottom 1u, and two strings 21 of equal length that are attached to the bag body 1 and function as a tote bag or a backpack by holding it or putting both arms through it. The tote / backpack bag 3 comprises two sheets of paperboard 22 of equal size that sandwich and secure one end 21Ea of the two strings 21 so that the two strings 21 extend at a fixed distance from each other, and the bottom 1u or body 1m of the bag body 1 are connected to the two strings 21. The bag body 1 further comprises two sheets of cardboard 22 fixed to the back side of the bottom 1u of the bag body 1, a pair of lower holes 101 are provided on the back side of the bottom 1u of the bag body 1, and a pair of first upper holes 102b and a pair of second upper holes 102a are provided on the back side and front side of the mouth portion 1o of the bag body 1, and two strings 21 extending from the two sheets of cardboard 22 are passed through the pair of lower holes 101, the pair of first upper holes 102b, and the pair of second upper holes 102a, in that order, at a distance from each other, and the other ends 21Eb of the two strings 21 extending from the two sheets of cardboard 22 are respectively fixed to the pair of second upper holes 102a.

[0017] With this configuration, the straps 21 for carrying the carrier / backpack bag 3 are made up of two straps of equal length, allowing the bag to be carried in a balanced manner; the two straps 21 are secured by being sandwiched between two sheets of paperboard 22, and the paperboard 22 is further secured to the bottom surface of the carrier / backpack bag 3, making it possible to prevent the two straps 21 from coming off the bag 3.

[0018] In this embodiment, as shown in Figs. 2(a) and 2(b), a set of the two strings 21 and two equally sized pieces of cardboard 22 that sandwich and fix one end 21Ea of the two strings 21 is referred to as backpack string part 2. The fixing can be performed by adhesive. The cardboard 22 of the backpack string part 2 is, for example, cardboard. In this embodiment, the width, height, and depth of the body part 1m are approximately 280mm x 350mm x 110mm. In order to achieve the effects of the present invention, the length of the strings 21 is preferably 750mm to 800mm on each side, including the knot, but strings of lengths outside this range can also be used in the present invention.

[0019] In this embodiment, the other ends 21Eb of the two strings 21 extending from the two cardboard sheets 22 are knotted in the pair of second upper holes 102a, so that the strings are fixed so as not to pass through the second upper holes 102a. In the present invention, known fixing means other than knotting may be used.

[0020] As shown in Figs. 1 to 3, the handbag / backpack bag 3 according to this embodiment has a body 1m that is made up of a front portion 11a, a back portion 11b, and a pair of side portions 12a, 12b, and a bottom portion 1u that is made up of a pair of first bottom flaps 111a, 111b that extend from lower edges UFL4 of the front portion 11a and the back portion 11b, respectively, and a pair of second bottom flaps 111a, 111b that extend from lower edges UFL5 of the pair of side portions 12a, 12b, respectively. It is formed by overlapping wraps 112a, 112b, and a pair of lower holes 101 are provided at the boundary between the bottom 1u and the back side of the body 1m (corresponding to the fourth mountain fold line UFL4 of the back portion 11b), and the two sheets of paperboard 22 are fixed to the back side of the first bottom flap 111b extending from the lower edge UFL4 of the back portion 11b so that the edges from which the two strings 21 protrude are aligned along the boundary between the back side of the body 1m and the bottom 1u.

[0021] With this configuration, the paperboard 22 portion of the backpack strap part 2 is hidden, improving the aesthetic appearance.

[0022] 1 and 3, in this embodiment, the periphery of the mouth 1o of the bag body 1 is provided with folded-back portions 17a, 17b, and the pair of first upper holes 102b and the pair of second upper holes 102a are provided through the overlapping portions of the sheets in the folded-back portions 17a, 17b, respectively. That is, the pair of first upper holes 102b are provided in the folded-back portion 17b on the back portion 11b side and in the surface of the body portion 1m facing the folded-back portion 17b, respectively, and the pair of second upper holes 102a are provided in the folded-back portion 17a on the front portion 11a side and in the surface of the body portion 1m facing the folded-back portion 17a, respectively.

[0023] This configuration can improve the strength of the mouth portion 1o, making it possible to prevent damage to the mouth portion 1o.

[0024] 3, the blank for the handbag / backpack bag 3 is composed of two blanks, a front blank 1Ba and a back blank 1Bb, and the rectangular front portion 11a is connected to the side portion 12a and the glue tab 15a via a first mountain fold line UFL1 and a second mountain fold line UFL2 that are parallel to each other, and is connected to the fold-back portion 17a and the first bottom flap 111a via a third mountain fold line UFL3 and a fourth mountain fold line UFL4 that are perpendicular to the first mountain fold line UFL1 and parallel to each other. The side portion 12a is connected to the fold-back portion 17a and the second bottom flap 112a via a third mountain fold line UFL3 and a fifth mountain fold line UFL5 that are parallel to each other. Further, in the side surface portion 12a, a first valley fold line DFL1, a second valley fold line DFL2, a third valley fold line DFL3, and a sixth mountain fold line UFL6 are formed so as to form a gusset structure as shown in FIG. 3(b).

[0025] As shown in FIG. 3(a), the first bottom flap 111b has an eighth valley fold line DFL8 formed thereon for folding the handbag / backpack bag 3 into a plate shape.

[0026] In the folded-back portion 17a, a fifth valley fold line DFL5, a sixth valley fold line DFL6, and a seventh mountain fold line UFL7 are formed so as to form a gusset structure as shown in FIG. 3(b).

[0027] The adhesive tab 15a is connected to the folded-back portion 17a and the tongue piece 18a via a third mountain fold line UFL3 and an eighth mountain fold line UFL8, which are parallel to each other, respectively.

[0028] A cut line CL is provided between the first bottom flap 111a and the second bottom flap 112a.

[0029] In Figures 3(a), 3(b), and 3(c), the areas with diagonal hatching have been glued, with the areas with dense diagonal hatching being glued on the front side of the figure (areas marked with the symbol 16T) and the areas with sparse diagonal hatching being glued on the back side of the figure (areas marked with the symbol 16B).

[0030] As shown in Figures 3(a) and 3(b), the front sides of the glue tabs 15a and 15b are glued, and the back side of the first bottom flap 111a is glued in a U-shape. In addition, both ends of the back side of the first bottom flap 111b are glued.

[0031] In Figures 3(a), 3(b), and 3(c), the numbers in parentheses indicate the parts to be pasted together, and the numbers indicate the order in which the parts are pasted together, with the dashed part being placed on top. Note that the order in which the parts are pasted together is merely an example, and does not exclude other orders.

[0032] Of the elements constituting the two blanks 1Ba, 1Bb of the combined handbag / backpack bag 3 according to this embodiment, those having similar functions are given the same reference numerals and their description will be omitted.

[0033] According to this embodiment, the straps 21 for carrying the handbag / backpack bag 3 are made up of two straps of equal length, allowing the bag to be carried in a well-balanced manner. In other words, by using two straps 21, the left and right straps 21 can be made to have the same length, making it difficult for the bag to lose balance when carried on the back. In addition, the two straps 21 are fixed by sandwiching them between two sheets of cardboard 22, and the cardboard 22 is further fixed to the bottom surface of the handbag / backpack bag 3, making it possible to prevent the two straps 21 from coming off the bag 3.

[0034] You can also carry the tote bag like a backpack so that you can keep both hands free while shopping or traveling.

[0035] Furthermore, regarding the method of fastening the upper part, the length can be adjusted by undoing the knot of the other end 21Eb of the string 21 and changing its position, so that it can serve as an adjuster.

[0036] According to this embodiment, the method of fastening the backpack strap part 2 at the bottom 1u is such that one end 21Ea of the strap 21 does not protrude to the outside, thereby improving the aesthetic appeal.

[0037] According to this embodiment, if backpack string parts 2 are prepared separately, they can be easily attached to bag body 1 because the area of ​​paperboard 22 is large and therefore the area to be glued is large.

[0038] <Second embodiment> The second embodiment of the present invention differs from the first embodiment in that it is made from a single sheet of paper and the backpack strap parts 2 are attached to the body 1'm rather than to the bottom surface of the bag.

[0039] Fig. 4 shows a combined handbag / backpack bag 3' according to a second embodiment of the present invention, with Fig. 4(a) being an overall perspective view from the front side, Fig. 4(b) being an overall perspective view from the back side, and Fig. 4(c) being a plan view of the bottom. Fig. 5 is a plan view of a single blank 1'B in which the bag body 1' of the combined handbag / backpack bag 3' according to this embodiment is unfolded, with Fig. 5(a) showing the blank including the back and front, and Fig. 5(b) showing the state in which the backpack string part 2 is attached to part Vb in Fig. 5(a). Of the various elements constituting the combined handbag / backpack bag 3' according to this embodiment, those having similar functions are given the same reference numerals as in the first embodiment, and their explanations are omitted.

[0040] The second embodiment of the present invention, like the first embodiment, is a handbag / backpack bag 3' equipped with a gusseted bag body 1' having a mouth 1'o, a bottom 1'u, and a body portion 1'm connecting the mouth 1'o and the bottom 1'u, as shown in Figure 4, and two strings 21 extending from a paperboard 22 of the backpack string part 2 are passed through a pair of lower holes 101, a pair of first upper holes 102b, and a pair of second upper holes 102a, in that order, at a distance from each other, and the other ends 21Eb of the two strings 21 extending from the two sheets of paperboard 22 are respectively fixed in the pair of second upper holes 102a.

[0041] In the second embodiment of the present invention, similarly to the first embodiment, the body portion 1'm is composed of a front portion 11'a, a back portion 11'b, and a pair of side portions 12'a, 12'b, and unlike the first embodiment, the bottom portion 1'u is composed of a single lower portion extending from and continuing from the lower edges UFL14, UFL24, UFL15, and UFL25 of the front portion 11'a, the back portion 11'b, and the pair of side portions 12'a, 12'b. It is formed by folding the surface portions 111'a, 111'b, 112'a, 112'b, and a pair of lower holes 101 are provided at the boundary between the bottom portion 1'u and the back side of the body portion 1'm (corresponding to the 24th mountain fold line UFL24 on the back portion 11'b side), and the two sheets of paperboard 22 are fixed to the back side of the back portion 11'b so that the protruding edges of the two strings 21 are aligned along the boundary between the back side of the body portion 1'm and the bottom portion 1'u.

[0042] With this configuration, like the first embodiment, the bag can be carried in a well-balanced manner, and the two strings 21 are less likely to come off the bag 3'.

[0043] Each lower side surface portion 111'a, 111'b, 112'a, 112'b is made up of a pair of first bottom flap portions 111'a, 111'b and a pair of second bottom flap portions 112'a, 112'b.

[0044] Turning to Figure 5, the blank of the handbag / backpack bag 3' is composed of a single blank 1'B including a front side and a back side, and the rectangular front portion 11'a is connected to the side portions 12'a and 12'b, respectively, via an eleventh mountain fold line UFL11 and a twelfth mountain fold line UFL12 which are parallel to each other, and is connected to the fold-back portion 17'a and the first bottom flap portion 111'a, respectively, via a thirteenth mountain fold line UFL13 and a fourteenth mountain fold line UFL14 which are perpendicular to the eleventh mountain fold line UFL11 and parallel to each other.

[0045] The side portion 12'a is connected to the glue tab 15' via the 16th mountain fold line UFL16 that is parallel to the 11th mountain fold line UFL11, and is connected to the folded-back portion 17'a and the second bottom flap portion 112'a via the 13th mountain fold line UFL13 and the 15th mountain fold line UFL15 that are perpendicular to the 11th mountain fold line UFL11 and parallel to each other.

[0046] The side portion 12'b is connected to the back portion 11'b via the 21st mountain fold line UFL21 that is parallel to the 12th mountain fold line UFL12, and is connected to the folded portion 17'b and the second bottom flap portion 112'b respectively via the 23rd mountain fold line UFL23 and the 25th mountain fold line UFL25 that are perpendicular to the 12th mountain fold line UFL12 and parallel to each other.

[0047] The rectangular back portion 11'b is connected to the folded-back portion 17'b and the first bottom flap portion 111'b via a 23rd mountain fold line UFL23 and a 24th mountain fold line UFL24 that are perpendicular to the 21st mountain fold line UFL21 and parallel to each other.

[0048] The first bottom flap portion 111'a and the second bottom flap portion 112'a are connected via the 17th valley fold line DFL17, the first bottom flap portion 111'a and the second bottom flap portion 112'b are connected via the 28th valley fold line DFL28, and the first bottom flap portion 111'b and the second bottom flap portion 112'b are connected via the 27th valley fold line DFL27.

[0049] In addition, an eleventh valley fold line DFL11, a twelfth valley fold line DFL12, and a thirteenth valley fold line DFL13 are formed on the side portion 12'a so as to form a gusset structure as shown in Figure 5(a), and a twenty-first valley fold line DFL21, a twenty-second valley fold line DFL22, and a twenty-third valley fold line DFL23 are formed on the side portion 12'b so as to similarly form a gusset structure.

[0050] As shown in FIG. 5(a), the back portion 11'b, the side portion 12'b, and the side portion 12'a have a 29th valley fold line DFL29, a 27th mountain fold line UFL27, and a 17th mountain fold line UFL17 formed for folding the handbag / backpack bag 3' into a plate shape.

[0051] In the folded portion 17'a, a 15th valley fold line DFL15, a 16th valley fold line DFL16, and an 18th mountain fold line UFL18 are formed to form a gusset structure as shown in Figure 5(a), and in the folded portion 17'b, a 25th valley fold line DFL25, a 26th valley fold line DFL26, and a 28th mountain fold line UFL28 are formed to similarly form a gusset structure.

[0052] The glue tab 15' is connected to the folded-back portion 17'a and the fold-in piece 18 via a 33rd mountain fold line UFL33 and a 31st mountain fold line UFL31 which are parallel to each other. The fold-in piece 18 is connected to the second bottom flap portion 112'a via a 18th valley fold line DFL18.

[0053] As shown in Fig. 5(a), the adhesive margin 15', the right end of the folded-back portion 17'a, and the front side of the folded-in piece 18 are glued (see reference symbol 16T). Also, as shown in Fig. 5(a), the pair of first bottom flap portions 111'a and 111'b are formed with the 19th mountain fold line UFL19 and the 20th mountain fold line UFL20, as well as the 29th mountain fold line UFL29 and the 30th mountain fold line UFL30, so that the lower side portions 111'a, 112'a, 111'b, and 112'b of one sheet are caramel-folded and glued together, and the front sides of the lower ends of the pair of first bottom flap portions 111'a and 111'b are glued (see reference symbol 16T), and the back side of the central lower attachment of the first bottom flap portion 111'a is glued (see reference symbol 16B).

[0054] In Figures 5(a) and 5(b), the numbers in square brackets indicate the parts to be pasted together, and the numbers indicate the order in which the pieces are pasted together, with the dashed side facing up. Note that this pasting order is just an example, and other pasting orders are not excluded.

[0055] According to this embodiment, it is possible to obtain the same effects as those of the first embodiment. For example, it is possible to carry the bag in a well-balanced manner, it is possible to prevent the two strings 21 from coming off the bag 3', and it is possible to improve the aesthetic appeal.

[0056] Furthermore, in this embodiment, since the backpack strap parts 2 are fixed to the torso 1'm side, the handbag / backpack combination bag 3' is constructed to be able to withstand a load.

[0057] The present invention is not limited to the above-described embodiment or the modified examples described throughout the specification, and appropriate changes and modifications can be made without departing from the technical concept of the present invention.

[0058] For example, the space between the pair of lower holes 101 may be spread outward, and the pair of strings 21 may be spread at the position of the lower holes 101. This configuration makes it easier to carry the bag on your back. [Explanation of symbols]

[0059] 3, 3' Handbag / Backpack 1, 1' bag body 1o, 1'o mouth 1m, 1'm torso 1u, 1'u bottom 11a, 11'a front part 11b, 11'b back part 12a, 12'a, 12b, 12'b side part 17a, 17'a, 17b, 17'b Folded parts 101 Lower hole 102a Second upper hole 102b First upper hole 111a, 111b First bottom flap 112a, 112b Second bottom flap 2 Backpack strap parts 21 String 22 Paperboard

Claims

1. A bag that can be used as a handbag or a backpack, the bag comprising a gusseted bag body having a mouth, a bottom, and a body portion connecting the mouth and the bottom, and two strings of equal length that are attached to the bag body and can be held by the user or by passing both arms through the strings, the strings functioning as a handbag or a backpack, The bag further includes two sheets of paperboard of equal size, each of which sandwiches and fixes one end of the two strings so that the two strings extend at a fixed interval, the two sheets of paperboard being fixed to the bottom or the back side of the body of the bag; A pair of lower holes is provided on the bottom or the back side of the body of the bag body, A pair of first upper holes and a pair of second upper holes are provided on the back side and the front side of the mouth of the bag body, two strings extending from the two sheets of paperboard are passed through the pair of lower holes, the pair of first upper holes, and the pair of second upper holes in that order, while being spaced apart from each other; A bag that can be used as a handbag or a backpack, characterized in that the other ends of two strings extending from the two sheets of paperboard are fixed in the pair of second upper holes, respectively.

2. The body portion is composed of a front portion, a back portion, and a pair of side portions, The bottom portion is formed by overlapping a pair of first bottom flaps extending from lower edges of the front portion and the rear portion, respectively, and a pair of second bottom flaps extending from lower edges of the pair of side portions, respectively; The pair of lower holes are provided at a boundary between the bottom portion and a rear side of the body portion, The tote bag / backpack combination described in claim 1, characterized in that the two sheets of paperboard are fixed to the back side of the first bottom flap extending from the lower edge of the back portion, so that the edges from which the two strings protrude are aligned along the boundary between the back side of the body and the bottom portion.

3. The body portion is composed of a front portion, a back portion, and a pair of side portions, The bottom portion is formed by folding a single lower side portion that extends from lower edges of the front portion, the back portion, and the pair of side portions and is continuous with the front portion, the back portion, and the pair of side portions; The pair of lower holes are provided at a boundary between the bottom portion and a rear side of the body portion, The tote bag / backpack combination bag according to claim 1, characterized in that the two sheets of paperboard are fixed to the back side of the back portion so that the edges from which the two strings protrude are aligned along the boundary between the back side of the body portion and the bottom portion.

4. A folded portion is provided on the periphery of the mouth of the bag body, 4. The bag as claimed in claim 1, wherein the pair of first upper holes and the pair of second upper holes are each provided through an overlapping portion of the sheet in the folded-back portion.

Images