JP2016016599A - Cup transporting bag and manufacturing method of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cup transporting bag and a manufacturing method of the same, which can be manufactured from one base material sheet with a simple process, can hold a container stably, and is excellent in heat insulation property.SOLUTION: A base material sheet 1 made of a thermoplastic resin material is delivered, and a gusset 2 is formed by folding a side of the base material sheet 1 inward. A notch 21a is formed in a folding-back end part 21 of the gusset 2. Then, in a state of inserting a backing plate A from an opening end 25 of the gusset 2, a pair of upper and lower sheet overlapping parts of a body part 22 of the gusset 2 is heat sealed linearly and integrally along a traveling direction, thereby making the folding-back end part 21 side a support part 23. Subsequently, the backing plate A is removed, the entire sheet overlapping parts in the vicinity of side edge parts 24 of the gusset 2 are heat sealed integrally along the side edge parts 24, the entire sheet overlapping parts in the vicinity of the opening end 25 of the gusset 2 are heat sealed integrally along the edge of the opening end 25, and thereby a bag bottom 25a is formed. The side edges of a bag base material completed in this manner are cut off sequentially.SELECTED DRAWING: Figure 9

Description

  The present invention is an improvement of a container transporting tool, more specifically, it can be manufactured from a single base sheet in a simple process, and the container can be stably held, and also has heat retention. Also relates to an excellent cup carrying bag and a method for producing the same.

  When taking out drinks such as coffee and juice in cups (containers that are not sealed with stoppers) at convenience stores and fast food stores, it is convenient to be able to carry the cups stably without holding them directly. It is.

  As such a transporting method, it is conceivable to first put the cup directly into the bag. However, the stability of the cup is lacking, and there is a risk that the cup will tilt in the bag and the drink may leak.

  In addition, to maintain the cup's posture, there is a type that mounts a perforated board such as cardboard on the bottom of the bag and raises the cup in this hole. There was a problem that it took time.

  Furthermore, what can convey a cup by a hand-held type is disclosed (for example, refer patent document 1). However, since only one cup can be transported per bag, and the cup body is exposed to the outside, there is a risk that the cup may become dirty or the surroundings may become dirty if a drink accidentally leaks.

  Furthermore, although what has penetrated the opening part provided in the holding piece of the opening part of a bag to a container is disclosed (for example, refer patent document 2), this opening part is penetrated to a container for every provision of goods. The operation is very troublesome, and is particularly difficult in a tapered container having a larger upper opening diameter such as a cup. Furthermore, since the covering portion on the side surface of the cup in the bag body is thin, there is a problem that the heat retention of the hot (cold) drink is impaired.

  In addition, if the sheet material has a complicated laminating structure in the manufacturing process of the bag body, it is necessary to add a supply mechanism or a fusing mechanism of another material member in addition to the manufacturing line in a normal bag making machine. Therefore, it is desired to manufacture a functional bag body using only one sheet base material as a use material.

Japanese Utility Model Publication No. 60-182345 JP 2008-80072 A

  The present invention has been made in view of the above-mentioned problems in conventional container transport devices, and the object is to manufacture from a single base sheet in a simple process. Another object of the present invention is to provide a cup carrying bag that can be stably held and can hold the container stably, and also has excellent heat retention, and a method for manufacturing the same.

  Means employed by the present inventor for solving the above technical problem will be described with reference to the accompanying drawings.

That is, the present invention feeds the base sheet 1 made of a thermoplastic resin material and folds the side inward to form the gusset 2.
A notch 21a is formed in the folded end 21 of the gusset 2,
Next, in a state where the contact plate A is inserted from the opening end 25 of the gusset 2, the pair of upper and lower sheet overlapping portions of the body portion 22 of the gusset 2 are integrally heat-sealed linearly along the traveling direction. After the folded end 21 side is the support 23,
The backing plate A is removed, and all the sheet overlapping portions in the vicinity of the side edge portion 24 of the gusset 2 are integrally heat-sealed along the side edge portion 24, and the sheet overlapping portion in the vicinity of the opening end 25 of the gusset 2. All are integrally heat-sealed along the edge of the open end 25 to form the bag bottom 25a,
By sequentially separating the side edges of the bag base material thus completed,
Technical means for enabling the cup C to be supported by the notch portion 21a and the bag bottom 25a of the support portion 23 and allowing the bag body having the air layer 22a to be continuously formed on the body portion 22 of the gusset 2. By adopting it, the manufacturing method of the cup carrying bag was completed.

In the present invention, the base sheet 1 made of a thermoplastic resin material is sent out, and both sides are folded inward to form the gussets 2 and 2,
A notch 21a is formed at each folded end 21 of each gusset 2,
Next, in a state where the backing plate A is inserted from the opening end 25 of each gusset 2, the pair of upper and lower sheet overlapping portions of the body portion 22 of the gusset 2 are integrally heat-sealed linearly along the traveling direction. After the folding end portion 21 side to the support portion 23 by
The backing plate A is removed, and all the sheet overlapping portions in the vicinity of the side edge portion 24 of the gusset 2 are integrally heat-sealed along the side edge portion 24 and the sheet overlapping portion in the vicinity of the opening end 25 of the gusset 2. All are integrally heat-sealed along the edge of the open end 25 to form the bag bottom 25a,
By sequentially separating the side edges of the pair of bag base materials completed symmetrically in this way,
Technical means for enabling the cup C to be supported by the notch portion 21a and the bag bottom 25a of the support portion 23 and allowing the bag body having the air layer 22a to be continuously formed on the body portion 22 of the gusset 2. By adopting it, the manufacturing method of the cup carrying bag was completed.

Moreover, in order to solve the said subject, this invention sends out the cylindrical base material sheet 1 which consists of a thermoplastic resin material in addition to the said means as needed, folds a side inward, and forms the gusset 2 While forming
The technical means of cutting the upper surface of the base sheet 1 along the traveling direction and forming the cut portion 21a at the folded end portion 21 of the gusset 2 can be employed.

Furthermore, in order to solve the above-mentioned problems, the present invention, in addition to the above means, if necessary, the sheet overlapping portion in the vicinity of the side edge portion 24 of the gusset 2 is integrally heat-sealed along the side edge portion 24. and when,
Adopting the technical means of forming the opening 26 at the lower edge of the cup support 23 at the side edge 24 by heat-sealing from the opening edge 25 side of the gusset 2 to the front of the folded end 21 can do.

  Furthermore, in order to solve the above-described problems, the present invention, in addition to the above means, in addition to the above means, heats all the sheet overlapping portions in the vicinity of the opening end 25 of the gusset 2 integrally along the edge of the opening end 25. After fusing, this integral fusion part is further folded inside the gusset, and all the sheet overlapping parts in the vicinity of the side edge part 24 are integrally heat-sealed along the side edge part 24, so that the opening end 25 side It is also possible to adopt a technical means for expanding the bag so that the bag body can stand up.

  Furthermore, in order to solve the above-described problems, the present invention employs technical means for forming the grip portion 3 by penetrating a part of the surface of the base sheet 1 in addition to the above means as necessary. You can also.

  Further, according to the present invention, the cup C can be supported on the cut portion 21a and the bag bottom 25a of the support portion 23 of the gusset 2 and the air layer 22a is provided on the trunk portion 22 of the gusset 2 using the manufacturing method. A cup carrying bag was completed.

The present invention feeds a base material sheet made of a thermoplastic resin material and folds the side inward to form a gusset, while forming a notch at the folded end of the gusset, and then opening the gusset After the backing plate is inserted from the end, the folded end portion side is made into a support portion by thermally fusing together a pair of upper and lower sheet overlapping portions of the body portion of the gusset linearly along the traveling direction. Removing the backing plate and integrally heat-sealing all the sheet overlapping portions in the vicinity of the side edge portion of the gusset along the side edge portion, and all the sheet overlapping portions in the vicinity of the opening end of the gusset. By thermally fusing together along the edges of the bag to form the bag bottom, the side edges of the bag base material thus completed are sequentially cut off,
It is possible to continuously form a bag body that can support the cup on the cut portion and the bag bottom of the support portion and that has an air layer on the trunk portion of the gusset.

  Therefore, according to the manufacturing method of the present invention, since it can be manufactured from a single base sheet in a simple process, an attachment or heat fusion for supplying another material member to the manufacturing line of the bag making machine is possible. There is no need to add a landing device, and the manufacturing cost can be kept low.

  Moreover, the carrying bag of this invention can hold | maintain and convey a cup stably with the notch part and bag bottom of the support part of a gusset.

  Furthermore, since the air layer formed in the body exhibits a function to alleviate heat exchange with the outside air, it is also excellent in heat retention for drinks contained in cups, etc. Is big.

It is sectional drawing showing the manufacturing process of the cup conveyance bag of embodiment of this invention. It is sectional drawing showing the manufacturing process of the cup conveyance bag of embodiment of this invention. It is a top view showing the manufacturing process of the cup conveyance bag of embodiment of this invention. It is a top view showing the manufacturing process of the cup conveyance bag of embodiment of this invention. It is a top view showing the manufacturing process of the cup conveyance bag of embodiment of this invention. It is a top view showing the manufacturing process of the cup conveyance bag of embodiment of this invention. It is a top view showing the manufacturing process of the cup conveyance bag of embodiment of this invention. It is sectional drawing showing the structure of the cup conveyance bag of embodiment of this invention. It is a perspective view showing the use condition of the cup conveyance bag of embodiment of this invention. It is a top view showing the modification of the manufacturing process of the cup conveyance bag of embodiment of this invention. It is a top view showing the modification of the manufacturing process of the cup conveyance bag of embodiment of this invention. It is a top view showing the modification of the manufacturing process of the cup conveyance bag of embodiment of this invention. It is a top view showing the modification of the manufacturing process of the cup conveyance bag of embodiment of this invention. It is a top view showing the modification of the manufacturing process of the cup conveyance bag of embodiment of this invention. It is a top view showing the modification of the manufacturing process of the cup conveyance bag of embodiment of this invention. It is a top view showing the modification of the manufacturing process of the cup conveyance bag of embodiment of this invention. It is a top view showing the modification of the manufacturing process of the cup conveyance bag of embodiment of this invention. It is a top view showing the modification of the cup conveyance bag of embodiment of this invention.

  An embodiment of the present invention will be described with reference to FIGS. In the figure, what is indicated by reference numeral 1 is a base sheet, and this base sheet 1 is a sheet made of a thermoplastic resin material. In this embodiment, it is preferable to employ a polyolefin resin such as polyethylene (PE) as the resin material.

  Moreover, what is indicated by reference numeral 2 is a gusset, and this gusset 2 is a part of the base sheet 1 formed by folding the side of the base sheet 1 inward.

  Therefore, the manufacturing method of the cup carrying bag of the present invention will be described below. In the present embodiment, only one manufacturing unit in the base sheet 1 that is continuously fed out is illustrated, and further, a bag body can be manufactured more efficiently. What can be simultaneously molded will be described.

  First, using a known bag making machine, as shown in FIG. 1, a base sheet 1 made of a thermoplastic resin material is sent out to a production line transferred by a conveyor or the like, and both sides are folded inward to gusset. 2 · 2 is formed. At this time, the base sheet 1 may be a single sheet (see FIG. 1), but it is preferable to adopt a cylindrical sheet (see FIG. 2) for ease of molding.

  Then, in the gusset 2, a cut portion 21 a is formed in the folded end portion 21. In the case where the base sheet 1 is cylindrical, as shown in FIG. 2, a central upper surface (center line in the figure) is cut along the traveling direction, a cutter is inserted from the cut portion, and the folded end 21 The notch 21a is formed in The cut portion 21a is formed for the purpose of inserting and supporting the cup in the bag body, and the shape is not limited. However, by forming the cut line shape as shown in FIG. Can be prevented from becoming waste.

  Next, in a state where the backing plate A is inserted from the opening end 25 of each gusset 2, the pair of upper and lower sheet overlapping portions of the body portion 22 of the gusset 2 are integrally heat-bonded linearly along the traveling direction (heat By sealing, the folded end portion 21 side becomes the support portion 23 (see FIG. 4). The support portion 23 is a portion that supports the upper portion of the cup when the cup is accommodated.

  With this backing plate A inserted into the gusset 2, each sheet overlapping portion can be independently heat-sealed from both the upper surface and the lower surface of the backing plate A (two each). In the present embodiment, one heat-sealed portion is formed in a straight line, but a plurality of heat-bonded portions may be formed, or a shape such as a curve or a broken line may be formed.

  Thereafter, the backing plate A is removed (by passing the backing sheet A by passing the base sheet 1), and all the sheet overlapping portions in the vicinity of the side edge portion 24 of the gusset 2 are placed on the side edge portion 24. The sheet bottom portion 25a is formed by integrally heat-sealing all the sheet overlapping portions in the vicinity of the opening end 25 of the gusset 2 along the edge of the opening end 25. (See FIG. 6). In this case, unlike the case of the body portion 22, the heat-sealed portion is all the sheet overlapping portions (four sheets) (see FIG. 7). Although the timing may be described later, it is also possible to perform a cutting operation for separating each bag unit at the same time as heat fusion is integrally performed along the side edge portion 24.

  In this embodiment, the handle portion 3 is formed so that the bag can be held in a hand-held shape. As a form of the handle portion 3, a notched opening portion can be provided as shown in FIG. Further, if necessary, both corners of the upper portion of the bag can be chamfered in a curved manner.

  The pair of bag base materials completed symmetrically in this manner are sequentially separated at the side edge portion 24 and the center line so that the cup C can be supported by the cut portion 21a and the bag bottom 25a of the support portion 23, and the gusset The bag body having the air layer 22a on the body portion 22 can be continuously formed (see FIG. 8).

  In this embodiment, when the sheet overlapping portion in the vicinity of the side edge portion 24 of the gusset 2 is integrally heat-sealed along the side edge portion 24, from the opening end 25 side of the gusset 2 to the front side of the folding end portion 21. Opening 26 can be formed at the lower side edge of the cup support portion 23 in the side edge portion 24 by heat sealing (see FIG. 9). In the opening 26, drinks such as sugar, milk, and mudler, and food accessories contained in the cup can be inserted and held.

  In addition, as a modification of the form of the handle part 3 in this embodiment, as shown in FIG. 10, it shape | molds by penetrating a part of surface of the base material sheet 1, and prevents that the stamped piece becomes a waste material. be able to.

  Moreover, as shown in FIG. 11, only the both ends of a bag upper part remain | survive, and the handle part 3 can also be formed by heat-sealing these sheet | seat superimposition parts integrally. Furthermore, the cut-in portion 21a of the folded-back end portion 21 can be formed in a substantially semicircular shape and can be stabilized by being adapted to the cross-section of the cup, or can be formed into an arc-shaped folded shape as shown in FIG. It is also possible to prevent tearing from the edge of the portion 21a.

  In the above method, the same bag can be obtained even if the position and order of heat fusion are changed. In addition, as shown in FIG. 13, in the gusset 2, a plurality of cut portions 21 a can be formed in the folded end portion 21 so that a plurality of cups can be transported.

  Further, as shown in FIG. 14, the carrying bag of the present invention can be molded one bag at a time, and although not shown, even when the traveling direction of the base sheet 1 is 90 degrees different in the manufacturing process, One bag unit can be molded.

  The present invention is generally configured as described above. However, the present invention is not limited to the illustrated embodiment, and various modifications can be made within the scope of the claims. The size of the support portion 23 can be adjusted by the position of heat fusion at 22.

  Further, as shown in FIG. 15, when all the sheet overlapping portions in the vicinity of the side edge portion 24 of the gusset 2 are integrally heat-sealed along the side edge portion 24, the width is narrowed toward the opening end 25 side. The cup can be skewed and heat-sealed in a tapered shape, and the cup can be held more stably.

  Furthermore, as shown in FIG. 16, first, all the sheet overlapping portions in the vicinity of the opening end 25 of the gusset 2 are integrally heat-sealed along the edge of the opening end 25, and then, as shown in FIG. The integrated fusion part is further folded inside the gusset, and as shown in FIG. 18, all the sheet overlapping parts in the vicinity of the side edge part 24 are integrally heat-sealed along the side edge part 24, thereby opening the opening end. The bag body can be erected by expanding the 25 side, improving usability.

  Furthermore, the shape of the opening of the handle portion 3 and the outline shape of the bag body can be arbitrarily designed according to the decorative design, and any of these belongs to the technical scope of the present invention.

1 base sheet 2 gusset
21 Folding end
21a notch
22 Torso
22a Air layer
23 Cup support
24 Side edge
25 Open end
25a Bag bottom
26 Opening 3 Handle part C Cup A Batting plate

Claims (7)

While sending out the base material sheet (1) made of a thermoplastic resin material and folding the side inward to form the gusset (2),
A notch (21a) is formed in the folded end (21) of the gusset (2),
Next, in a state where the backing plate (A) is inserted from the open end (25) of the gusset (2), the pair of upper and lower sheet overlapping portions of the body portion (22) of the gusset (2) are linearly formed along the traveling direction. After making the folded end portion (21) side a support portion (23) by heat-sealing each integrally,
The backing plate (A) is removed, and all the sheet overlapping portions in the vicinity of the side edge (24) of the gusset (2) are integrally heat-sealed along the side edge (24), and the gusset (2 ) Of the sheet overlap portion in the vicinity of the opening end (25) is integrally heat-sealed along the edge of the opening end (25) to form the bag bottom (25a),
By sequentially separating the side edges of the bag base material thus completed,
A bag which can support the cup (C) on the cut portion (21a) and the bag bottom (25a) of the support portion (23) and has an air layer (22a) on the trunk portion (22) of the gusset (2). A method for producing a cup carrying bag, wherein the body can be continuously formed. While the base sheet (1) made of a thermoplastic resin material is fed out, both sides are folded inward to form gussets (2, 2),
A notch (21a) is formed in each folded end (21) of each gusset (2),
Next, a pair of upper and lower sheet overlapping portions of the trunk portion (22) of the gusset (2) is lined along the traveling direction with the backing plate (A) inserted from the open end (25) of each gusset (2). After making the folded end portion (21) side into a support portion (23) by heat-sealing each integrally in a shape,
The backing plate (A) is removed, and all the sheet overlapping portions in the vicinity of the side edge (24) of the gusset (2) are integrally heat-sealed along the side edge (24), and the gusset (2 ) Of the sheet overlap portion in the vicinity of the opening end (25) is integrally heat-sealed along the edge of the opening end (25) to form the bag bottom (25a),
By sequentially separating the side edges of the pair of bag base materials completed symmetrically in this way,
A bag which can support the cup (C) on the cut portion (21a) and the bag bottom (25a) of the support portion (23) and has an air layer (22a) on the trunk portion (22) of the gusset (2). A method for producing a cup carrying bag, wherein the body can be continuously formed. While sending out the cylindrical base material sheet (1) made of a thermoplastic resin material, the side is folded inward to form the gusset (2),
The upper surface of the base sheet (1) is cut along the direction of travel, and a cut portion (21a) is formed in the folded end portion (21) of the gusset (2). The manufacturing method of the cup conveyance bag of description. When all the sheet overlapping parts in the vicinity of the side edge (24) of the gusset (2) are integrally heat-sealed along the side edge (24),
By heat-sealing from the opening end (25) side of the gusset (2) to the front of the folded end portion (21), an opening portion is formed at the lower side edge of the cup support portion (23) at the side edge portion (24). 26) is formed, respectively, The manufacturing method of the cup conveyance bag of Claim 1 or 2 characterized by the above-mentioned.   After all the sheet overlapping portions in the vicinity of the opening end (25) of the gusset (2) are integrally heat-sealed along the edge of the opening end (25), the integrated fusion portion is further folded inside the gusset, By fusing all the sheet overlapping parts near the side edge (24) together along the side edge (24), the open end (25) side can be widened to stand up the bag body. The manufacturing method of the cup conveyance bag of Claim 1 or 2 characterized by the above-mentioned.   The method for manufacturing a cup carrying bag according to claim 1 or 2, wherein a grip portion (3) is formed by penetrating a part of the surface of the base sheet 1. While the side of the base material sheet (1) made of a thermoplastic resin material is folded inward to form a gusset (2),
A notch (21a) is formed in the folded end (21) of the gusset (2),
The pair of sheet overlapping portions of the body portion (22) of the gusset (2) are integrally heat-sealed in a linear manner, so that the folded end portion (21) side becomes the support portion (23), and
All the sheet overlapping portions near the side edge (24) of the gusset (2) are integrally heat-sealed along the side edge (24), and the sheet near the open end (25) of the gusset (2). All overlapping portions are integrally heat-sealed along the edge of the opening end (25) to form a bag bottom (25a),
The cup (C) can be supported by the cut portion (21a) and the bag bottom (25a) of the support portion (23), and the body (22) of the gusset (2) has an air layer (22a). Cup carrying bag characterized by.

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