JP3167666U - paper bag - Google Patents

Abstract

An object of the present invention is to provide a paper in which an object can be smoothly stored and the vicinity of an opening is not easily damaged when the object is stored. A paper bag (1) includes a front wall (2) and a rear wall (3) opposed to each other, a pair of left and right town portions (4) connected between the sides of the front wall and the rear wall, and one of the front wall and the rear wall. And a flap 5 extending from the upper side. Furthermore, it has the reinforcement part 6 each extended from the upper side of the said pair of town part and the front wall or the rear wall which does not have the said flap, and the said reinforcement part does not have the said pair of town part and the said flap. The paper bag 1 is formed by being folded so as to overlap the inner surface of the wall or the rear wall. As for the said paper bag, the said reinforcement part is good to be formed in one strip | belt shape as a whole. The paper bag may be formed such that each side of the reinforcing portion is inclined in the central direction from the bottom toward the tip. [Selection] Figure 2

Description

  The present invention relates to a paper bag, and more particularly to a paper bag with a flap.

  Conventionally, paper bags are suitably used for storing, carrying, etc., purchased items, gifts, and other small items. In addition, as such a paper bag, a paper bag provided with a flap for sealing the upper opening is widely used in order to prevent the contents from being visually recognized or spilled from the outside.

  The flap provided in such a paper bag is usually provided so as to extend from the upper side of either the front wall or the rear wall that are arranged to face each other. In a paper bag having such a flap, after putting a desired object, the flap is bent toward the front wall or the rear wall surface on the side where the flap is not provided, and an adhesive tape provided on the flap. By sticking this flap and the surface of the front wall or the rear wall, the contents can be stored without being visually recognized from the outside.

  However, since such a paper bag with a flap is usually made of paper material, the front and rear walls facing each other and the pair of left and right gussets connected between the sides of the front and rear walls are made of paper material. When a certain force is applied, the vicinity of the opening may be broken relatively easily. Also, when using relatively soft paper, in order to ensure that the opening is opened, the town part will be folded without permission unless the area around the opening is supported by hand, and objects will be stored. It may be difficult to do.

  Also, today, as a method for manufacturing such a paper bag with a flap, a step (first step) of feeding paper bags each having an opening edge formed linearly one by one at a predetermined interval, and a front wall and a rear wall are overlapped. In this state, a step of cutting off both sides of the flap and a portion overlapping with both sides of the flap (second step), a step of bending the flap outward, and cutting off other portions formed protruding from the folding position (first step) A manufacturing method having three steps) and a step of providing an adhesive band on the inner surface of the flap (fourth step) has been devised (see JP-A-11-188805).

  However, according to such a manufacturing method, in order to form the flap, it is necessary to cut off a portion formed so as to protrude from the position where the flap is bent, and it is not possible to maintain a sufficient strength in the vicinity of the opening. This is not desirable for both strength and environment.

  Accordingly, the paper bag with a flap preferably has a strength sufficient to prevent the vicinity of the opening from being easily broken when an object is put therein. Moreover, as such a paper bag with a flap, it is preferable that a material can be used effectively and the loss of the material at the time of manufacture can be reduced.

JP-A-11-188805

  The present invention has been made in view of these disadvantages, and an object of the present invention is to provide a paper bag that can smoothly store an object and that does not easily break the vicinity of the opening when the object is inserted.

The idea made to solve the above problems is
Opposing front and rear walls;
A pair of left and right towns connected between the sides of the front and rear walls;
A paper bag having a flap extending from the upper side of either the front wall or the rear wall,
Each of the upper sides of the pair of town portions as well as a reinforcing portion extending from the upper side of the front wall or the rear wall not having the flap,
The paper bag is characterized in that the reinforcing portion is folded back so as to overlap the inner surface of the front wall or the rear wall without the pair of town portions and the flap.

  Since the paper bag has a pair of town portions and a reinforcing portion that is folded back so as to overlap the inner surface of the front wall or the rear wall that does not have a flap, the strength in the vicinity of the opening can be increased. Therefore, the paper bag can reduce the possibility that this portion will be damaged even when a force is applied in the vicinity of the opening when an object is taken in and out. In addition, as a result of the strength in the vicinity of the opening being improved by the reinforcing portion, the paper bag can improve the shape stability near the opening. As a result, the paper bag can reduce the risk that the gusset will be bent without the support of the vicinity of the opening by hand, and can be easily performed even when storing relatively large objects. .

  As for the said paper bag, it is good for the said reinforcement part to be formed in one strip | belt shape as a whole. Thereby, the strength and shape stability near the opening can be further increased.

  The paper bag may be formed such that each side of the reinforcing portion is inclined in the central direction from the bottom toward the tip. Thereby, a reinforcement part can be easily folded back to the inner surface side of a front wall or a rear wall which does not have a pair of town part and a flap.

  In the paper bag, the flap, the reinforcing portion, the front wall, the rear wall, and the pair of town portions may be formed from a single sheet. Thereby, a manufacturing process can be simplified and manufacturing cost can be reduced. In addition, the paper bag can reduce material loss caused in the manufacturing process.

  In the paper bag, the length of the flap in the opening direction and the length of the reinforcing portion in the opening direction are preferably equal to each other. Thereby, the manufacturing process can be further simplified. Further, the paper bag can be used to improve the strength of the vicinity of the opening in the same manner as the reinforcing portion if the flap is folded so as to overlap the inside of the front wall or the rear wall to which the flap is connected. It can be used as a member. As a result, the paper bag can further reduce the possibility that the vicinity of the opening is damaged when an object is taken in and out.

  As described above, the paper bag of the present invention can smoothly store objects and can reduce the risk of damage near the opening during storage.

It is a partial expanded view which shows the paper bag which concerns on one Embodiment of this invention. It is a typical perspective view which shows the opening vicinity of the assembly in the paper bag of FIG. It is a typical perspective view which shows the opening sealing procedure of the paper bag of FIG. It is a typical perspective view which shows the opening sealing procedure different from the opening sealing procedure of FIG. It is a typical perspective view which shows the state which uses the flap of the paper bag of FIG. 1 as a reinforcement part.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.

  The paper bag 1 shown in FIG. 1 has a front wall 2, a rear wall 3, a pair of town parts 4, a flap 5, a reinforcing part 6, and a margin part 7.

  In a state after assembly, the paper bag 1 is arranged such that the front wall 2 and the rear wall 3 face each other, and a pair of town portions 4 are connected between the sides of the front wall 2 and the rear wall 3. The paper bag 1 has a rectangular bottom wall (not shown) in an assembled state connected to the front wall 2, the rear wall 3, and the lower sides of the pair of town portions 4, respectively. The paper bag 1 is assembled into a substantially bottomed rectangular column shape by the front wall 2, the rear wall 3, the pair of town portions 4 and the bottom wall. The size of the paper bag 1 is not particularly limited, and is appropriately set depending on the size and use of the contents, the function required for the paper bag 1, or the like. The material of the paper bag 1 is not particularly limited, and may be formed using only paper, and may be formed in various forms such as a laminate, a paper whose surface is covered with a synthetic resin such as nylon. Things can be used. In the paper bag 1, the front wall 2, the rear wall 3, the pair of town portions 4, the flap 5, the reinforcing portion 6, and the glue margin portion 7 are obtained by cutting a single piece of material including a piece of paper into a predetermined shape. It is integrally formed.

  The front wall 2 and the rear wall 3 are formed in a rectangular shape having the same shape and the same size.

  The pair of town portions 4 is formed with a crease for folding in a valley fold toward the inside at substantially the center in the horizontal direction. The pair of town portions 4 are formed in a rectangular shape having the same shape and the same size. Further, the front wall 2, the rear wall 3, and the pair of town portions 4 are formed to have the same length in the opening direction.

  The flap 5 extends from the upper side of the front wall 2. The flap 5 is formed in a trapezoidal shape in which the left and right sides are inclined in the central direction at substantially the same angle. The flap 5 has an adhesive seal 8. A release paper is stuck on the surface of the sticking seal 8.

  The reinforcing part 6 is provided so as to extend from the upper side of the rear wall 3 and the upper side of the pair of town parts 4. As shown in FIG. 2, the reinforcing portion 6 is folded back so as to overlap the inner surfaces of the rear wall 3 and the pair of town portions 4 in a state where the paper bag 1 is assembled. The length of the reinforcing portion 6 in the opening direction is the same as the length of the flap 5 in the opening direction. The reinforcing portion 6 is formed in a single belt shape as a whole in the assembled state. In the assembled state, the reinforcing portion 6 is formed such that each side is inclined in the central direction from the bottom toward the tip.

  The length in the opening direction of the flap 5 and the length in the opening direction of the reinforcing portion 6 are not particularly limited, but each is preferably ½ or more and 1 or less of the lateral length of the town portion 4, and 3/5 or more. More preferably, it is 1 or less.

  The margin part 7 is a part for connecting the rear wall 3 and the town part 4. The margin part 7 is formed in a substantially rectangular shape. The margin part 7 is provided so as to extend from the side of the town part 4 and the side of the reinforcing part 6. The paper bag 1 is attached to the front wall 2, the rear wall 3, and the pair of town portions 4 by superimposing and adhering one side of the rear wall 3 (the right end in FIG. 1) and the adhesive margin 6. A substantially square cylindrical side wall can be formed. Although it does not specifically limit as a magnitude | size of the paste margin part 7, It is a magnitude | size which can perform a sticking operation | work easily and can be fixed with intensity | strength required after sticking. preferable.

  In the assembled state, the paper bag 1 is folded so that the reinforcing portion 6 overlaps the inner surfaces of the rear wall 3 and the pair of town portions 4. Since the paper bag 1 is formed in a double structure by overlapping the vicinity of the opening of the rear wall 3 and the pair of town portions 4 with the reinforcing portion 6, the strength in the vicinity of the opening can be increased. Therefore, the paper bag 1 can reduce the possibility that this portion will be damaged even when a force is applied in the vicinity of the opening when an object is put in and out. Moreover, as a result of the strength in the vicinity of the opening being improved by the reinforcing portion 6, the paper bag 1 can improve the shape stability in the vicinity of the opening. As a result, the paper bag 1 can reduce the risk that the gusset 4 will be bent without permission unless the vicinity of the opening is supported manually, and can be easily performed even when storing relatively large objects. Can do.

  In the paper bag 1, since the reinforcing portion 6 is formed in a single band shape as a whole, the strength in the vicinity of the opening can be improved as a whole. Therefore, the paper bag 1 can reduce the possibility of damage to any portion of the rear wall 3 and the pair of town portions 4 in the vicinity of the opening, regardless of which portion is applied. Moreover, as for the said paper bag 1, as a result of the reinforcement part 6 being formed in one sheet | seat shape as a whole, the shape stability of opening vicinity can be improved further.

  Since the paper bag 1 has a shape in which each side of the reinforcing portion 6 is inclined in the central direction from the bottom toward the front end, the reinforcing portion 6 is connected to the inner surfaces of the rear wall 3 and the pair of town portions 4. Can be folded easily.

  Since the paper bag 1 includes the flap 5, the reinforcing portion 6, the front wall 2, the rear wall 3, and the pair of town portions 4, the manufacturing process can be simplified. As a result, the manufacturing cost of the paper bag 1 can be reduced. In addition, the paper bag 1 can reduce material loss caused in the manufacturing process.

  Next, the opening sealing procedure of the paper bag 1 will be described.

  First, with reference to FIG. 3, the sealing procedure in the case of accommodating the thing of a comparatively smaller size than the paper bag 1 as a content is demonstrated.

  First, the user puts a desired object in the paper bag 1, and as shown in FIG. 3 (a), the front wall 2 and the rear wall 2 are folded in a V shape inwardly along the crease. The upper side of the wall 3 is overlapped. Next, the user peels off the release paper stuck on the surface of the sticking tape 8. Further, as shown in FIG. 3B, the user bends the flap 5 toward the surface of the rear wall 3 and bonds the surfaces of the flap 5 and the rear wall 3 using the adhesive tape 8. Thereby, the opening of the paper bag 1 is sealed.

  Next, with reference to FIG. 4, a sealing procedure in the case of storing an item having the same size as the paper bag 1 as the content will be described.

  First, the user puts a desired item into the paper bag 1. At this time, the reinforcing portion 6 is preferably folded so as to overlap the inner surfaces of the rear wall 3 and the pair of town portions 4, although depending on the size of the contents. Next, as shown in FIG. 4B, the user takes out the reinforcing portion 6 and adjusts it so as to be substantially perpendicular to the rear wall 3 and the pair of town portions 4. Further, the user peels off the release paper stuck on the surface of the sticking tape 8. The user bends the flap 5 toward the surface of the reinforcing portion 6 and bonds the surfaces of the flap 5 and the reinforcing portion 6 with the adhesive tape 8 as shown in FIG. Thereby, the opening of the paper bag 1 is sealed.

  Thus, in the paper bag 1, the length in the opening direction of the flap 5 and the reinforcing portion 6 is 1/2 or more and 1 or less, more preferably 3/5 or more and 1 or less of the length in the left-right direction of the town portion 4, respectively. Thus, the reinforcing portion 6 can keep the vicinity of the opening at a predetermined strength, and even when the flap 5 alone cannot close the opening, the flap 5 and the reinforcing portion 6 are overlapped and bonded together. Thus, the opening can be reliably sealed.

  As shown in FIG. 5, the paper bag 1 has the same function as the reinforcing portion 6 if the flap 5 is folded not only on the reinforcing portion 6 but also on the inner surface of the front wall 2. It can be used as a member having Therefore, when it is not necessary to seal the opening of the paper bag 1, the strength and shape stability in the vicinity of the opening are further improved by folding the flap 5 so as to overlap the inner surface of the front wall 2. be able to. Note that the paper bag 1 is formed such that the left and right sides of the flap 5 are inclined in the central direction, so that the flap 5 can be easily folded so as to overlap the inner surface of the front wall 2.

  Since the paper bag 1 is formed such that the opening length of the flap 5 and the opening length of the reinforcing portion 6 are equal to each other, the manufacturing process can be further simplified. Further, the paper bag 1 can be used as a member for improving the strength of the vicinity of the opening in the same manner as the reinforcing portion 6 if the flap 5 is bent so as to overlap the inside of the front wall 2. As a result, the paper bag 1 can further reduce the possibility that the vicinity of the opening is damaged when an object is taken in and out.

  In addition, the paper bag of this invention can be implemented in the aspect which gave various change and improvement other than the said aspect. For example, the length of the flap and the reinforcing portion in the opening direction of the paper bag need not necessarily be ½ or more and 1 or less of the lateral length of the gusset portion.

  The reinforcement part should just be extended from each upper side of a pair of town part, and the upper side of the front wall or rear wall which does not have a flap, and does not necessarily need to form one strip | belt shape as a whole. Therefore, for example, the reinforcing portion extending from the upper side of either the front wall or the rear wall and the reinforcing portion extending from each upper side of the pair of town portions may not be connected to each other, It may be composed of three members: a reinforcing part extending from any upper side of the rear wall, and a reinforcing part extending from each upper side of the pair of town parts.

  Further, each side of the reinforcing portion does not necessarily have a shape inclined in the central direction from the bottom toward the tip. Since the said paper bag should just be able to bend so that a reinforcement part may overlap with the inner surface of the side wall to which each is connected, each side of a reinforcement part may be formed in parallel with the opening direction, for example.

  The flap 5 does not need to be extended from the upper side of the front wall, and may be extended from the upper side of the rear wall. The paper bag does not necessarily have to be formed as a single piece of flap, reinforcing part, front wall, rear wall, and a pair of town parts. For example, a flap is formed as a separate body, and the vicinity of the upper side of the front wall or rear wall. You may make it stick.

  The paper bag may be used as a handbag in which a handbag is connected to a front wall, a rear wall, or the like. In the paper bag, the flaps and the reinforcing portions do not need to be set to have the same length in the opening direction. The paper bag can maintain the vicinity of the opening at a predetermined strength by adjusting the opening direction length of the reinforcing part even when the opening direction lengths of the flap and the reinforcing part are different.

  The length in the opening direction of the reinforcing part of the paper bag need not be uniform, for example, the opening direction length of the part extending from the upper side of the front wall or the rear wall and the opening of the part extending from the upper side of the pair of town parts The direction length may be different.

  As described above, the paper bag of the present invention can smoothly store objects and can reduce the risk of breakage near the opening during storage work. Therefore, the paper bag of the present invention is suitable as a bag used for various purposes such as a shopping bag, a bag for gifts, and a bag for other small items.

DESCRIPTION OF SYMBOLS 1 Paper bag 2 Front wall 3 Rear wall 4 Town part 5 Flap 6 Reinforcement part 7 Adhesive part 8 Adhesive tape

Claims (5)

Opposing front and rear walls;
A pair of left and right towns connected between the sides of the front and rear walls;
A paper bag having a flap extending from the upper side of either the front wall or the rear wall,
Each of the upper sides of the pair of town portions as well as a reinforcing portion extending from the upper side of the front wall or the rear wall not having the flap,
The paper bag, wherein the reinforcing portion is folded back so as to overlap the inner surfaces of the pair of town portions and the front wall or the rear wall not having the flap.   The paper bag according to claim 1, wherein the reinforcing portion is formed in a single band shape as a whole.   The paper bag according to claim 1 or 2, wherein each side of the reinforcing portion is formed so as to be inclined in the central direction from the bottom toward the tip.   The paper bag according to claim 1, wherein the flap, the reinforcing portion, the front wall, the rear wall, and the pair of town portions are formed from a single sheet.   The paper bag according to any one of claims 1 to 4, wherein a length in the opening direction of the flap and a length in the opening direction of the reinforcing portion are equal to each other.

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