TWI728606B - Bags and bag making methods - Google Patents

Abstract

The invention relates to a bag and a method for making a bag. The bag includes a bag body and at least one fixing member; the bag body is formed by concave folding of a single body, and has a bottom and a surrounding wall. The surrounding wall is arranged on the bottom and Surrounding a storage space and a bag opening; the surrounding wall has two front faces, two end faces and four connecting parts; the two front faces are respectively located on opposite sides of the longitudinal direction of the bag body; the two end faces are respectively located on opposite sides of the lateral direction of the bag body; The connecting parts are respectively located at the four corners of the bag body, and the opposite sides of the connecting parts are respectively connected to one of the front and one of the end faces; the fixing member penetrates the opposite sides of the surrounding wall and keeps the surrounding wall bent relative to the bottom. In this way, this creation can create a three-dimensional and sturdy bag with space and function through simple bending and penetrating operations.

Description

Bags and bag making methods

This creation relates to a bag made of a single piece of bag material that is concavely folded and does not fix the shape of the bag with stitches, especially a bag, a shoulder bag, a crossbody bag or a waist bag, and a method for making the bag.

Bags in the prior art, such as carrying bags, shoulder bags, cross-body bags, or waist bags, etc., have a bag body formed by stitching more than two pieces of leather. For example, the left side, bottom side and right side of the bag body are formed by a long strip. The two ends of the leather-shaped leather are concavely folded upwards, and the front and back sides of the bag body are respectively stitched to the aforementioned elongated leather by two large-area leathers to form a three-dimensional bag body.

However, in the process of making the bag body from sheet-like leather materials, many times of cutting and stitching are required. The production process is time-consuming and laborious, and each time the leather is cut and stitched, the leather may have angle changes or relative position deviations. , Affect the quality of the bag body.

Therefore, the prior art bags and the methods for making bags need to be improved.

In view of the aforementioned shortcomings and shortcomings of the prior art, the present invention provides a bag and a method for making a bag. The bag body is formed by concave folding of a single piece of packaging material, and the outer shape of the bag is fixed in an easy-to-operate manner to make the bag body The production saves time and effort.

In order to achieve the above-mentioned purpose of the invention, the technical means adopted by the present invention is to design a bag, which contains: a bag body, which is formed by concave folding of a single body, and has A bottom; a surrounding wall connected to the top surface of the bottom and surrounding the bottom; the surrounding wall and the bottom form a storage space, the top periphery of the surrounding wall forms a pocket; the surrounding wall has: two front faces , Which are respectively located on opposite sides of the longitudinal direction of the bag; a first end surface and a second end surface, which are respectively located on opposite sides of the lateral direction of the bag, the first end surface and the second end surface are opposite to the bottom The first end face is folded to form an exposed first groove; the second end face is folded to form an exposed second groove; two first connecting portions, which are respectively connected to the first The opposite sides of the end face are connected to the two front faces respectively, and each of the first connecting parts is bent relative to the first end face and the corresponding front face; and two second connecting parts are respectively connected to the second end face The two opposite sides are connected to the two front surfaces respectively, and each of the second connecting portions is bent relative to the second end surface and the corresponding front surface; two fixing members penetrate the surrounding wall and keep the surrounding wall around The upper part of the bottom portion forms the storage space; the two fixing members include: a first fixing member that penetrates the first connecting portions so that the first end surface remains bent relative to the bottom; and the first fixing member penetrates The first end surface folded in half to overlap itself; a second fixing member that penetrates the second connecting portions so that the second end surface remains bent relative to the bottom, and the second fixing member penetrates the folded in half to overlap itself A second end surface; a carrying belt, the opposite ends of which are each formed with a connecting hole; one of the connecting hole is sleeved outside the first fixing member and located in the first groove; the other of the connecting hole is sleeved It is outside the second fixing member and located in the second groove.

The advantage of the present invention is that the bag body is formed by concave folding of a piece of body. Specifically, the periphery of the sheet body is bent upward to form a surrounding wall, and the surrounding wall surrounds the storage space and the mouth of the bag body. The bending of the surrounding wall relative to the bottom is done by appropriately bending the surrounding wall part (that is, the connecting parts are bent relative to the corresponding end surface and front surface; or the connecting parts and end surfaces are all bent), and then fixed Pieces run through The proper position of the wall (that is, the first fixing piece penetrates through the two first connecting parts, and the second fixing piece penetrates through the two second connecting parts; or the first fixing piece penetrates through the two front faces and the first end face folded in half, and the second fixing piece penetrates through the two front faces And the second end face folded in half, and the first fixing piece and the second fixing piece can also be the two ends of the U-shaped fixing piece integrally formed), so that the surrounding wall maintains the upwardly bent shape, thereby maintaining the bag body to form a storage space The three-dimensional appearance. In other words, the present invention creates a three-dimensional and sturdy bag with storage space and functions through the simple operation of shuttling the fixing member between the holes. The bag body is easy to make, and the time and cost of making the bag can be saved. , And can also improve the quality of bag making.

In order to achieve the above-mentioned object of the invention, the present invention further provides a method for making a bag, including the following steps: preparing a sheet: preparing a sheet with a bottom and a surrounding wall, the surrounding wall surrounding the periphery connected to the bottom; The surrounding wall has two opposite front surfaces, a first end surface and a second end surface opposite to each other, two first connecting portions and two second connecting portions; the two first connecting portions are respectively connected to two opposite sides of the first end surface. The side edges are respectively connected to the two front surfaces, the two second connecting portions are respectively connected to the opposite sides of the second end surface, and are respectively connected to the two front surfaces; making a bag body: the surrounding wall of the sheet body is opposite to the The bottom is bent upwards, so that the first end surface and the second end surface are both bent relative to the bottom; the surrounding wall itself is bent into a plurality of overlapping areas, wherein each of the first connecting parts is opposite to the first end surface And the corresponding front surface is bent, and each of the second connecting portions is bent relative to the second end surface and the corresponding front surface; the first end surface is folded to form an exposed first groove, And the second end face is folded to form an exposed second groove; prepare a carrying belt, the opposite ends of which are each formed with a connecting hole, the two connecting holes are respectively located in the first groove and the second groove In the groove; prepare at least one fixing member, and use the at least one fixing member to penetrate the overlapping parts of the surrounding wall so that the surrounding wall remains bent upward relative to the bottom; wherein the at least one fixing member includes a first A fixing piece and a second fixing piece, so that the first fixing piece penetrates the first connecting portions and the first end surface that overlaps itself due to the double folding, so that the first end surface remains bent relative to the bottom, and the second One fixed At the same time pass through the connecting hole of the carrying belt located in the first groove; make the second fixing element pass through the second connecting parts and the second end surface that overlaps itself due to double folding to make the second end surface Keeping being bent relative to the bottom, and the second fixing member penetrates the connecting hole of the carrying belt in the second groove at the same time.

Since the user can easily disassemble the bag body into a sheet shape, this creation can not only be disassembled into a flat surface for easy cleaning, but also can be disassembled to save storage space when the bag is not in use; the bag body can also be disassembled into a sheet shape. Can reduce the loss of packaging materials, so that resources can be used more effectively. In addition, through the design of this creation, a single piece of packaging material can be provided when it is intended to be used as a bag, which is easy to assemble and can generally be used for other purposes (such as a placemat).

Furthermore, in the bag, the first fixing member further penetrates the two front faces; the second fixing member further penetrates the two front faces.

Furthermore, in the bag, each of the first connecting parts is folded in half; and each of the second connecting parts is folded in half.

Furthermore, in the bag, the first fixing member includes a first rod and two first heads, the two first heads are respectively provided at both ends of the first rod, and each The outer diameter of the first head is greater than the outer diameter of the first rod; the first rod penetrates the surrounding wall; the second fixing member includes a second rod and two second heads, the two second heads The parts are respectively arranged at both ends of the second rod body, and the outer diameter of each second head is larger than the outer diameter of the second rod body; the second rod body penetrates the surrounding wall.

Furthermore, in the bag, the bag body further has a cover sheet, which is formed protrudingly from the top periphery of the surrounding wall and can cover the mouth of the bag.

1: the first side

2: Central part

3: second side

10: Bag body

11: bottom

12: Surround the wall

121: front

122: first end face

1221: first groove

1231: second groove

123: second end face

124: The first connection part

1241: End face connection block

1242: Front connection block

125: second connection part

13: cover sheet

14: Bag mouth

20: The first fixing part

21: The first pole

22: first head

30: The second fixing part

31: The second pole

32: second head

40: Carrying belt

41: connecting hole

S: Polyline

10A: Bag body

21A: The first shaft

122A: The first end face

124A: The first connection part

10B: Bag body

122B: The first end face

124B: The first connection part

125B: Small storage pocket

21B: The first body

124C: The first connecting part

122C: The first end face

121C: Front

20C: The first fixing part

11C: bottom

Figure 1 is a perspective view of the first embodiment of the created bag.

Figure 2 is a plan view of the bag body in the first embodiment of the created bag.

3 to 8 are schematic diagrams of the manufacturing method of the first embodiment of the created bag.

Figure 9 is a side view of the first embodiment of the created bag.

Fig. 10 is a partial three-dimensional external view of the first embodiment of the created bag.

Fig. 11 is another three-dimensional external view of the first embodiment of the created bag.

Figure 12 is a partial top view of the second embodiment of the created bag.

Figure 13 is a partial top view of the third embodiment of the created bag.

Figure 14 is a partial top view of the fourth embodiment of the created bag.

Figure 15 is a flow chart of the method of making the created bag.

In the following, in conjunction with the drawings and the preferred embodiments of the present invention, the technical means adopted by the present invention to achieve the predetermined creative purpose are further described.

Please refer to Figure 1, Figure 2 and Figure 9, the bag of the present invention includes a bag body 10, a first fixing member 20 and a second fixing member 30; and in this embodiment, further includes a carrying With 40.

The bag body 10 is formed by concave folding of a single body, and has a bottom 11 and a surrounding wall 12; and in this embodiment, it further includes a cover sheet 13. The material of the bag body 10 can be leather, cloth or canvas, but is not limited to this.

The surrounding wall 12 is connected to the top surface of the bottom 11 and surrounds the bottom 11. The surrounding wall 12 and the bottom 11 form a storage space, the top periphery of the surrounding wall 12 forms a pocket 14; the surrounding wall 12 has two front surfaces 121, a first end surface 122, a second end surface 123, two first connecting portions 124, and Two second connection part 125.

The two front surfaces 121 are respectively located on opposite sides of the longitudinal direction of the bag body 10; the first end surface 122 and the second end surface 123 are respectively located on opposite sides of the lateral direction of the bag body 10, and the first end surface 122 and the second end surface 123 are opposite to the bottom 11 Bending; two first connecting portions 124 are respectively connected to opposite sides of the first end surface 122 Each of the first connecting portions 124 is bent relative to the first end surface 122 and the corresponding front surface 121, respectively. The two second connecting portions 125 are respectively connected to opposite sides of the second end surface 123 and connected to the two front surfaces 121 respectively. Each second connecting portion 125 is bent relative to the second end surface 123 and the corresponding front surface 121.

The specific structure of the surrounding wall 12 is not limited to the above, only the surrounding wall 12 is connected to the top surface of the bottom 11 and surrounds the bottom 11, the surrounding wall 12 and the bottom 11 form a storage space, and the top periphery of the surrounding wall 12 forms a bag口14, that's it.

The cover sheet 13 is protrudingly formed on the top periphery of the surrounding wall 12, and is connected to one of the front faces 121 in this embodiment; the cover sheet 13 can cover the bag opening 14 (as shown in FIG. 11).

In this embodiment, the first end surface 122 is folded in half to form an exposed first groove 1221, and the second end surface 123 is folded in half to form an exposed second groove 1231, and specifically, the top of the first end surface 122 has A virtual double fold line, which extends up and down, and divides the top of the first end surface 122 into a front connecting block and a rear connecting block. The front connecting block and the rear connecting block are respectively connected to the two first connecting portions 124; the first end surface 122 The tops of the two first connecting parts 124 are superimposed, and they are folded together along the fold line of the first end surface 122, and the superimposed first end surface 122 and the two first connecting parts 124 are formed at the mouth of the bag 14 An arc-shaped first bending wall, the first bending wall forms a first groove 1221. The top of the second end surface 123 also has a virtual and up-and-down fold line, and the top of the second end surface 123 overlaps with the tops of the two second connecting parts 125, and they are jointly folded along the fold line of the second end surface 123 to form the bag. An arc-shaped second bending wall and a second groove 1231 are formed at the opening 14 (as shown in FIG. 10). The fold of the first end surface 122 and the second end surface 123 is not limited to the center or left and right (that is, the fold line of the first end surface 122 and the fold line of the second end surface 123 are not limited to the center).

The aforementioned first fixing member 20 penetrates through the two first connecting portions 124 in this embodiment to keep the first end surface 122 bent relative to the bottom portion 11. In this embodiment, the first fixing member 20 includes a first rod body 21 and two first heads 22. The first rod body 21 penetrates through the two front faces 121 and is folded in half to overlap itself. The end surface 122 and the two first connecting portions 124; the two first heads 22 are respectively provided at both ends of the first rod 21, and the outer diameter of each first head 22 is greater than the outer diameter of the first rod 21 to prevent the first A fixing member 20 comes out; one of the first heads 22 can be separated from the first rod body 21 to facilitate disassembly or assembly of the bag body 10. The shape of the first fixing member 20 is not limited to a linear shape, but may also be other shapes such as an arc shape, and the first rod body 21 may also be replaced with a chain, or the first fixing member 20 may also be a chain looped into a loop. In addition, in other preferred embodiments, the first fixing member 20 may only penetrate the first end surface 122 and the two first connecting portions 124 do not penetrate the two front surfaces 121, so that the first fixing member 20 can also make the first end surface 122 is kept bent relative to the bottom 11, and at the same time, both ends of the first fixing member 20 can be hidden between the two front surfaces 121 without being exposed.

The aforementioned second fixing member 30 penetrates through the two second connecting portions 125 in this embodiment to keep the second end surface 123 bent relative to the bottom portion 11. In this embodiment, the second fixing member 30 includes a second rod 31 and two second heads 32. The second rod 31 penetrates through the two front surfaces 121 and the second end surface 123 folded in half to overlap itself and the second connection Section 125; Two second heads 32 are respectively provided at both ends of the second rod 31, and the outer diameter of each second head 32 is greater than the outer diameter of the second rod 31 to prevent the second fixing member 30 from falling out; One of the second heads 32 can be separated from the second rod 31 to facilitate disassembly or assembly of the bag body 10. The shape, structure and position of the second fixing member 30 can have the same changes as the aforementioned first fixing member 20, and will not be repeated here. Moreover, the structures of the first fixing member 20 and the second fixing member 30 are not limited to the above, only the first fixing member 20 and the second fixing member 30 both penetrate the surrounding wall 12 and keep the surrounding wall 12 around the bottom 11 Above to form a storage space. In addition, the number of fixing parts is not limited to this. The present invention may also have only one fixing part. For example, a U-shaped fixing part can be used to penetrate the surrounding wall 12 and keep the surrounding wall 12 above the surrounding bottom 11 to form a storage space. also may.

A connecting hole 41 is formed at both ends of the aforementioned carrying belt 40. One connecting hole 41 is sleeved outside the first fixing member 20 and is located in the first groove 1221, and the other connecting hole 41 is sleeved in The second fixing member 30 is outside and located in the second groove 1231, but the carrying belt 40 can also be connected to the fixing member in other ways than sleeves.

Please refer to FIG. 12, the second embodiment of this creation is substantially the same as the first embodiment, the difference is that the first end surface 122A and the second end surface are not folded in half; the first rod 21A penetrates the first embodiment along the transverse direction of the bag body 10A. The end surface 122A and the two first connecting portions 124A, and the second rod body penetrates the second end surface and the two second connecting portions in the same direction, so that the two fixing members can also exert the effect of maintaining the shape of the bag 10A.

Please refer to FIG. 13, the third embodiment of the present creation is substantially the same as the second embodiment. The difference is that the first rod 21B only penetrates the two first connecting portions 124B and does not penetrate the first end surface 122B, so that it can still maintain The effect of the shape of the bag body 10B can also form a small object storage pocket 125B between the first end surface 122B and the first connecting portion 124B.

Please refer to FIG. 14, the fourth embodiment of the present creation is substantially the same as the first embodiment, the difference is that the two first connecting portions 124C are only folded on themselves without bending relative to the first end surface 122C or the front surface 121C; the second connecting portion The first end surface 122C and the second end surface are folded in half by themselves; the first fixing member 20C penetrates through the two front surfaces 121C and the first end surface 122C that is folded in half and overlaps with itself to make the first end surface 122C is kept bent relative to the bottom 11C; the second fixing member penetrates through the two front faces 121C and the second end face that is folded in half and overlaps itself so that the second end face remains bent relative to the bottom 11C, so that the object of the present invention can also be achieved.

Please refer to FIG. 1, FIG. 2 and FIG. 15. The method of making the bag of the present invention includes the following steps:

Prepare a sheet (S1): prepare a sheet, which has a bottom 11 and a surrounding wall 12, the surrounding wall 12 surrounds and connects to the periphery of the bottom 11; A first side portion 1, a central portion 2 and a second side portion 3 (as shown in Figure 2); the central portion 2 has two front surfaces 121 and a bottom portion 11, and the bottom portion 11 is connected between the two front surfaces 121 and connected to Between the first side portion 1 and the second side portion 3, each front surface 121 is connected between the first side portion 1 and the second side portion 3. In this embodiment, the first side portion 1 has a first end surface 122 connected to the bottom portion 11 and two first connection portions 124 connected to the two front surfaces 121 respectively, and the third side portion 3 has a second end surface 123 that connects to the bottom portion 11. And connect the two front 121 The second connecting portion 125, each first connecting portion 124 of the first side portion 1 has a virtual fold line S, which extends from a corner of the connecting portion adjacent to the bottom 11 toward the opposite corner, and divides the first connecting portion 124 into One end face is connected to the block 1241 and a front face is connected to the block 1242.

Making the bag body (S2): bend the surrounding wall 12 of the sheet upward relative to the bottom 11, and bend the surrounding wall 12 itself out of a plurality of overlaps; prepare the first fixing member 20 and the second fixing member 30, and The first fixing member 20 and the second fixing member 30 pass through the overlapping parts of the surrounding wall 12, but the number of fixing members is not limited to this. The present invention may also have only one fixing member, for example, a U-shaped fixing member can be used. The piece penetrates the surrounding wall 12 and keeps the surrounding wall 12 bent upward relative to the bottom 11. In this embodiment, the foregoing steps are to bend the two front surfaces 121, the first side portion 1 and the second side portion 3 of the surrounding wall 12 upward relative to the bottom portion 11; and prepare the first fixing member 20 and the second fixing member 30; Bend the first side 1 itself out of a plurality of overlapping areas, and use the first fixing member 20 to penetrate the first side 1 so that the first side 1 remains bent relative to the bottom 11; and the second side 3 is bent on itself Fold out a plurality of overlapping areas, and use the second fixing member 30 to penetrate the second side portion 3 to keep the second side portion 3 bent relative to the bottom portion 11. In addition, in this embodiment, a carrying belt 40 is further prepared, and two ends of the carrying belt 40 are connected to the first fixing member 20 and the second fixing member 30 respectively.

The aforementioned method can be used to make all the embodiments of the bag of this creation. The following further illustrates some of the detailed steps used to make the first embodiment of the bag of this creation: 2 and 3, the second side portion 3 is bent and fixed with the second fixing member 30 first, and one end of the carrying belt 40 is fixed to the second fixing member 30, and then the second side portion 3 is fixed to the second fixing member 30. Steps of assembling one side 1.

Please refer to FIG. 4, first, one of the first connecting portions 124 of the first side portion 1 is bent obliquely upward with respect to the bottom 11, and the end surface connecting block 1241 is bent toward the first end surface 122.

Please refer to FIG. 5 to FIG. 6, the first end surface 122 is bent upward relative to the bottom 11, and the end surface connecting block 1241 is pressed against the first end surface 122, and at the same time the front surface of the same first connecting portion 124 is connected to the block 1242 Bend against the end surface connection block 1241 (as shown in Figure 5); then, connect another first connection The portion 124 is bent toward the bottom 11, and at the same time, the first connecting portion is folded in half along its folding line S and then abuts against the previously bent first connecting portion 124 (as shown in FIG. 6); please refer to FIG. 7, then, The overlapping first end surface 122 and the two first connecting portions 124 are folded in half to form a first groove 1221.

Please refer to FIG. 8, the connecting hole 41 at one end of the carrying belt 40 is placed in the first groove 1221, and then the first fixing member 20 is inserted through the first end surface 122 that is folded in half and overlaps itself, and penetrates the first recess The connecting hole 41 of the carrying belt 40 in the slot 1221 is such that one end of the carrying belt 40 is connected to the first fixing member. At this time, the installation of the bag body 10 of the present invention is completed.

Finally, the bending described in this creation is not limited to 90 degrees or the bending method with obvious fold lines.

In summary, the bag body 10 of the present invention is folded from a single body, and then the first fixing member 20 and the second fixing member 30 are respectively penetrated and fixed by the simple operation of the concave folding angle, and then a three-dimensional And it is a sturdy bag with storage space and function, and the bag body making process is simple and saves time and effort. In addition, the user can easily disassemble the bag body 10 into a sheet shape, which is not only easy to clean, but also can be disassembled when the bag is not in use to save storage space; disassembling the bag body 10 into a sheet shape can also reduce the loss of packaging materials , So that resources can be used more effectively. In addition, through the design of this creation, a single piece of packaging material can be provided when it is intended to be used as a bag, which is easy to assemble and can generally be used for other purposes (such as a placemat).

The above descriptions are only preferred embodiments of the present invention, and do not limit the present invention in any form. Although the present invention has been disclosed as above in preferred embodiments, it is not intended to limit the present invention. Any technical field has The ordinary knowledgeable person, without departing from the scope of the technical solution of the present invention, can use the technical content disclosed above to make slight changes or modification into equivalent embodiments with equivalent changes. However, any content that does not depart from the technical solution of the present invention is based on the present invention. The technical essence of the invention makes any simple modifications, equivalent changes and modifications to the above embodiments still fall within the scope of the technical solutions of the present invention.

10: Bag body

11: bottom

12: Surround the wall

121: front

122: first end face

1221: first groove

1231: second groove

13: cover sheet

14: Bag mouth

20: The first fixing part

30: The second fixing part

40: Carrying belt

41: connecting hole

Claims (6)

A bag comprising: a bag body, which is formed by concave folding of a single body and has a bottom; a surrounding wall, which is connected to the top surface of the bottom and surrounds the bottom; and the surrounding wall and the bottom form a In the storage space, the top periphery of the surrounding wall forms a pocket; the surrounding wall has: two front faces, which are respectively located on opposite sides of the longitudinal direction of the bag; a first end surface and a second end surface, which are respectively located in the bag On opposite sides of the body in the transverse direction, the first end surface and the second end surface are bent relative to the bottom; the first end surface is folded to form an exposed first groove; the second end surface is folded to form An exposed second groove; two first connecting portions, which are respectively connected to opposite sides of the first end surface, and respectively connected to the two front surfaces, and each of the first connecting portions is opposite to the first end surface and corresponds to The front side of the bend; two second connecting portions, which are respectively connected to opposite sides of the second end surface, and respectively connected to the two front surfaces, each of the second connecting portions is relative to the second end surface and the corresponding The front side is bent; two fixing members that penetrate the surrounding wall and keep the surrounding wall around the bottom to form the storage space; the two fixing members include: a first fixing member that penetrates the first connections Part so that the first end face remains bent relative to the bottom; and the first fixing member penetrates the first end face that is folded in half and overlaps itself; a second fixing member penetrates the second connecting parts to make the second The end surface remains bent relative to the bottom, and the second fixing member penetrates through the second end surface which is folded in half and overlaps with itself; a carrying belt with a connecting hole formed at opposite ends of the belt; one of the connecting holes is sleeved on the second end surface. A fixing part is outside and located in the first groove; the other connecting hole is sleeved outside the second fixing part and located in the second groove. The bag as described in claim 1, in which: The first fixing member further penetrates the two front surfaces; the second fixing member further penetrates the two front surfaces. The bag according to claim 1 or 2, wherein: each of the first connecting parts is folded in half; each of the second connecting parts is folded in half. The bag according to claim 1 or 2, wherein: the first fixing member includes a first rod and two first heads, and the two first heads are respectively provided at two ends of the first rod, And the outer diameter of each of the first heads is greater than the outer diameter of the first rod; the first rod penetrates the surrounding wall; the second fixing member includes a second rod and two second heads, the two The second heads are respectively arranged at both ends of the second rod body, and the outer diameter of each second head is larger than the outer diameter of the second rod body; the second rod body penetrates the surrounding wall. The bag according to claim 1 or 2, wherein the bag body further has a cover sheet protrudingly formed on the top periphery of the surrounding wall and can cover the bag mouth. A method for making a bag includes the following steps: preparing a sheet body: preparing a sheet body, which has a bottom and a surrounding wall, the surrounding wall is connected to the periphery of the bottom; the surrounding wall has: two opposite front faces, opposite A first end surface and a second end surface, two first connecting portions and two second connecting portions; the two first connecting portions are respectively connected to opposite sides of the first end surface, and are respectively connected to the two front surfaces, the Two second connecting parts are respectively connected to opposite sides of the second end surface, and respectively connected to the two front faces; making a bag body: bend the surrounding wall of the sheet body upwards relative to the bottom, so as to make the first end surface And the second end surface are both bent relative to the bottom; the surrounding wall itself is bent out of a plurality of overlapping areas, wherein each of the first connecting portions is bent relative to the first end surface and the corresponding front surface, and Each of the second connecting portions is bent relative to the second end surface and the corresponding front surface; the first end surface is folded to form an exposed first groove, and the second end surface is folded to form a Exposed second groove; ready to carry The opposite ends of the belt are each formed with a connecting hole, and the two connecting holes are respectively located in the first groove and the second groove; at least one fixing member is prepared, and the at least one fixing member penetrates the surrounding wall The overlapping parts are such that the surrounding wall remains bent upward relative to the bottom; wherein the at least one fixing element includes a first fixing element and a second fixing element, so that the first fixing element penetrates the first connections And the first end surface that overlaps itself due to being folded in half so that the first end surface remains bent relative to the bottom, and the first fixing member simultaneously penetrates the connecting hole of the carrying belt in the first groove; The second fixing member penetrates the second connecting portions and the second end surface that overlaps itself due to the double folding, so that the second end surface remains bent relative to the bottom, and the second fixing member penetrates the second concave at the same time. The connecting hole of the carrying belt in the groove.

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