JP2002225476A - Folder and manufacturing method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a folder, capable of housing matters to be housed by dividing them, and the manufacturing method for the same. SOLUTION: The folder F1 is formed so as to have a rectangular shape and is provided with a pair of front and rear folder forming pieces 11, 12 constituted of a plastic sheet. The neighboring two sides of the folder forming pieces 11, 12 are closed so as to form closing parts 18, 18a. The side of two sides, opposed to the closing parts 18, 18a, are opened so as to form opened parts 19, 19a. A pocket unit 14 is provided on the outside surface of the folder forming piece 11 by a pocket forming piece 13 provided along the closed part 18a of the side of a short side. Both of left and right end parts of the pocket forming piece 13 are closed by the closing part 18 of the side of a long side and a closing part 16 while the pocket unit 14 is formed so as to have the shape of a bag. The closing part 16 is formed by bonding the pocket forming piece 13 to the folder forming piece 11 through fusion bonding.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folder for storing objects such as documents between a pair of stacked plastic sheets and a method of manufacturing the same. More particularly, the present invention relates to a folder capable of storing items to be stored separately and a method of manufacturing the folder. Further, the present invention relates to a folder capable of preventing a stored object from falling off and a method of manufacturing the folder. Further, the present invention relates to a folder in which a so-called blocking phenomenon that occurs when a plastic sheet is manufactured by an inflation method and a folder is easily opened, and a manufacturing method thereof.

[0002]

2. Description of the Related Art Hitherto, a folder F made of a plastic sheet called a so-called clear folder as shown in FIG. 36 has been widely used as office supplies for easily filing documents and the like. In this folder F, adjacent two sides 2 of a pair of overlapping plastic sheets 1 and 1a (mainly abbreviated as a plastic sheet in the present specification) are closed, and two sides 3 opposed thereto are closed. is open. Then, an object 4 such as a document is sandwiched between the opened plastic sheets 1 and 1a, and stored and used.

[0003] By the way, at present, a plastic sheet as a material of a folder is generally manufactured by a melt extrusion method (extrusion method) such as a T-die method or an inflation method. Among them, the inflation method has the advantage that plastic sheets can be mass-produced at low cost with simple equipment compared to the T-die method.

A method of manufacturing a folder using this inflation method is disclosed in, for example, JP-A-59-1300 and JP-A-9-99501. In the production methods described in these publications, first, a plastic tube (mainly abbreviated as a plastic tube in the present specification) produced by an inflation method is completely evacuated from the air therein and stacked in a flat shape (sheet shape). After that, the folder is manufactured by welding and cutting while keeping it flat.

[0005]

First, the conventional folder F as shown in FIG. 36 has the following problems.
That is, the conventional folder F simply stores the object 4 such as a document sandwiched between the two plastic sheets 1 and 1a, and has a structure capable of storing the object 4 separately. is not. Therefore, for example, it is impossible to separately store the A4 size documents and the different kinds of stored objects such as slips, business cards, photographs, and flexible disks in one folder F.

[0006] For example, between the plastic sheets 1 and 1a,
Even if A4 size documents and the above-mentioned different kinds of stored items are stored, there is a high possibility that only the different kinds of stored items will fall out when the folder F is carried or when the documents are taken in and out. In addition, when the object to be stored is small, it is inconvenient to use because it is hidden in a large document and cannot be taken out immediately.

[0007] Further, in the conventional folder F, since two adjacent sides 3 are open, even if the documents have the same size,
For example, glossy and slightly thick objects to be stored, such as product catalogs and pamphlets, are likely to shift and move when stored, and are likely to fall off when the folder F is carried.

Next, the conventional method of manufacturing a folder using the inflation method has the following problems. In the conventional manufacturing method, as described above, a flat (sheet-shaped) plastic tube from which air inside has been completely expelled is used as it is for welding and cutting to manufacture a folder. For this reason, even after manufacturing, the plastic sheets 1 and 1a of the folder F are in close contact with each other in a state close to a vacuum, and the plastic sheets 1 and 1a are not easily separated from each other due to generation of static electricity. (So-called blocking phenomenon occurs). Therefore, the openability (opening) when using the folder F was poor, and it was not easy to take out and put in documents.

(Object of the Invention) It is an object of the present invention to solve the above-mentioned problems, and to provide a folder capable of separately storing objects to be stored and a method of manufacturing the same.

Another object of the present invention is to provide a folder and a method of manufacturing the folder, which can prevent a stored object stored between a pair of plastic sheets from falling off.

Still another object of the present invention is to prevent a so-called blocking phenomenon which occurs when a plastic sheet is manufactured by an inflation method, to make it easier to open a folder, and to make it easier to put and take out an object to be stored. And a method for manufacturing the same.

[0012]

Means for Solving the Problems In the first invention,
It has a pair of front and back folder forming pieces composed of a plastic sheet, a closed part in which two adjacent sides of the folder forming piece are closed, and an open part in which two sides facing the closed part are open. Wherein the opening portion is opened to store an object to be stored, and a pocket portion is provided on an outer surface of one or both of the folder forming pieces. A folder.

According to a second aspect of the present invention, there is provided a folder having a pair of front and back folder forming pieces each formed of a plastic sheet, and a closed portion in which two adjacent sides of the folder forming piece are closed; And an opening having two open sides facing each other, and the opening is opened to store an object to be stored, and the outer surface of one or both of the folder forming pieces is provided. Is a folder characterized in that a pocket portion is provided by a pocket forming piece provided along one of the two sides forming the closing portion.

According to a third aspect of the present invention, a belt is provided which holds a required portion of the object stored in the pocket portion and prevents the object from falling off. It is a folder according to the first or second invention.

In the fourth invention, a bent piece which can be bent inward and sandwiched between the folder forming pieces is provided at an edge of the opening portion side of one of the folder forming pieces. An opening is provided on the end side of the closed portion adjacent to the bent piece so as to easily sandwich the bent piece between the folder forming pieces. A folder according to the first, second or third invention, wherein the length is set shorter than the length of the music piece in the protruding direction.

According to a fifth aspect of the present invention, there is provided a folder having a pair of front and back folder forming pieces each formed of a plastic sheet, and a closed portion in which two adjacent sides of the folder forming piece are closed; And a folder having two open sides facing each other, and the open section is opened to store an object to be stored, and an edge of one of the folder forming pieces on the side of the open section is provided. Is provided with a bent piece that can be bent inward and sandwiched between the folder forming pieces, and on the end side of the closed portion adjacent to the bent piece, the bent piece is attached to the folder forming piece. The folder is characterized in that an opening is provided so as to be easily sandwiched therebetween, and the length of the opening is set shorter than the length of the bent piece in the protruding direction.

According to a sixth aspect of the present invention, the first, second, third, or third opening is characterized in that a part of the opening closer to the closing part is joined to form a bag. 4th or 5th
FIG.

According to a seventh aspect of the present invention, the plastic sheet is obtained by cutting a plastic tube obtained by an inflation method and forming it into a sheet. This is a folder according to the fourth, fifth or sixth invention.

According to an eighth aspect of the present invention, there is provided a folder having a pair of front and back folder forming pieces each formed of a plastic sheet, and a closed portion in which two adjacent sides of the folder forming piece are closed; And an opening having two open sides opposite to each other, wherein the opening is opened to store an object to be stored, wherein the plastic sheet separates a plastic tube obtained by an inflation method. A folder characterized in that a folder is used.

According to a ninth aspect of the present invention, the first or the second aspect is characterized in that the inner surface of the plastic tube is configured to be the mating surface of the pair of front and back folder forming pieces (11, 12). 2 is a folder according to the second invention.

In the tenth invention, one end in the width direction of the plastic sheet unwound from the roll body is folded back to form a pair of front and back folder forming pieces, pocket forming pieces and one closed portion. A step of sandwiching one end in the width direction of another plastic sheet fed out of the body, and joining or fusing each of the plastic sheets in the width direction at predetermined intervals in the longitudinal direction to form the other closed portion and pocket portion. A method of manufacturing a folder, comprising: a step of cutting each of the plastic sheets at a predetermined position in a width direction after the joining or the fusing.

According to the eleventh aspect, the step of bending the plastic sheet unwound from the roll body at the center in the width direction to form a pair of front and back folder forming pieces and one closed portion forms a pocket forming piece. In order to
Superimposing another plastic sheet, which is narrower than the folded plastic sheet, on the outer surface of the folded plastic sheet along the fold, the fold side end of the folded plastic sheet and the another plastic sheet Joining one end in the width direction in the longitudinal direction, joining or fusing the plastic sheets in the width direction at predetermined intervals in the longitudinal direction to form the other closed portion and pocket portion,
Cutting the plastic sheet at a predetermined position in the width direction after the joining or the fusing.

According to a twelfth aspect, in order to form a pair of front and back folder forming pieces, a step of superposing the plastic sheets respectively fed from the roll body,
Superimposing another plastic sheet narrower than the plastic sheet on the outer surface of one of the plastic sheets along one end in the width direction of the plastic sheet to form a pocket forming piece; Joining one end in the width direction of each of the wide plastic sheets and one end in the width direction of another narrow plastic sheet in the longitudinal direction to form one closed portion, and the other closed portion. And forming or forming a pocket portion by joining or fusing each of the plastic sheets at predetermined intervals in the longitudinal direction and in the width direction,
Cutting the plastic sheet at a predetermined position in the width direction after the joining or the fusing.

According to a thirteenth aspect, in order to form a pair of front and back folder forming pieces, a step of superposing the plastic sheets respectively fed from the roll body,
In order to form one closed part and a pair of pocket forming pieces,
A step of folding another plastic sheet narrower than the plastic sheet at a required position in the width direction and sandwiching one end side of the plastic sheet in the width direction;
Joining or fusing each of the plastic sheets in the width direction at predetermined intervals in the longitudinal direction to form the other closed portion and the pair of pocket portions; Cutting at a predetermined position in the direction,
This is a method of manufacturing a folder.

According to a fourteenth aspect, a step of bending a plastic sheet fed from a roll body at a central portion in a width direction to form a pair of front and back folder forming pieces and one closed portion, a pair of pocket forming pieces. In order to form, a step of folding another plastic sheet narrower than the plastic sheet at a required position in the width direction to sandwich the folded side of the plastic sheet,
Joining or fusing each of the plastic sheets in the width direction at predetermined intervals in the longitudinal direction to form the other closed portion and the pair of pocket portions; Cutting at a predetermined position in the direction,
This is a method of manufacturing a folder.

According to the fifteenth aspect, the step of bending the plastic sheet unwound from the roll body at the center in the width direction so as to form a pair of folder forming pieces and one closed portion includes forming a pair of pocket forming pieces. To form
Superimposing another plastic sheet having a width smaller than that of the folded plastic sheet on each of the outer surfaces of the folded plastic sheet along the fold line, the fold side end of the folded plastic sheet and the width of the width being different from each other. Joining one end in the width direction of another narrow plastic sheet in the longitudinal direction; joining the plastic sheets in the width direction at predetermined intervals in the longitudinal direction to form the other closed portion and a pair of pocket portions; Or a step of cutting the plastic sheet at a predetermined position in the width direction after the joining or the melting.

According to a sixteenth aspect, in order to form a pair of front and back folder forming pieces, a step of superposing the plastic sheets respectively fed from the roll body,
Superimposing another plastic sheet narrower than the plastic sheet on each outer surface of the plastic sheet along one end in the width direction of the plastic sheet to form a pair of pocket forming pieces; Step of joining one end in the width direction of the plastic sheet in the longitudinal direction to form one closed portion, and forming the other closed portion and a pair of pocket portions,
Bonding or fusing the plastic sheet at a predetermined interval in the longitudinal direction, in the width direction, after the bonding or after the fusing, cutting the plastic sheet at a predetermined position in the width direction, A method for manufacturing a folder, which is a feature.

According to the seventeenth aspect, in order to make the pocket portion into a bag shape, a plastic sheet forming one or both pocket forming pieces and a folder forming piece provided with the plastic sheet on an outer surface are provided. A method of manufacturing a folder according to any one of the tenth to sixteenth inventions, comprising a step of joining a plastic sheet to be formed at predetermined intervals in a longitudinal direction in a width direction.

According to the eighteenth aspect, a folder forming piece is formed in order to form a band for holding a required portion of the storage object stored in the pocket portion and preventing the storage object from falling off. After superimposing in the longitudinal direction another plastic sheet of a required width to be unwound from the roll body on the outer surface of the plastic sheet other than where the plastic sheet forming the pocket forming piece is provided, at a required position Joining together.
A folder manufacturing method according to any one of the 0th to seventeenth aspects.

According to the nineteenth aspect, in order to form a bent piece that can be bent inward and sandwiched between the folder forming pieces, the plastic sheet forming the pair of folder forming pieces is required to be formed in the width direction. Superimposing in a state shifted by the width, in order to form an open portion that makes it easy to sandwich the bent piece between the folder forming pieces, with a length shorter than the length of the bent piece in the protruding direction, A step of cutting out a required portion of the plastic sheet,
A method for manufacturing a folder according to any one of the tenth to eighteenth aspects, comprising:

According to the twentieth aspect, the pair of folder forming pieces, one closed portion, and a folded piece which is bent inward to be sandwiched between the folder forming pieces are fed out of the roll body. The step of superimposing the plastic sheets with the required width shifted in the width direction, wherein the opening for facilitating the folding piece to be sandwiched between the folder forming pieces is longer than the length of the folding piece in the projecting direction. Cutting a required portion of the plastic sheet to form a short length, joining or fusing the plastic sheet in a width direction at predetermined intervals in a longitudinal direction to form the other closed portion, Cutting the plastic sheet at a predetermined position in the width direction after joining or after fusing. It is a method of manufacture.

In the twenty-first aspect, a step of joining a required portion of a plastic sheet to join a part of one of the open portions closer to the closed portion into a bag shape is included. A method of manufacturing a folder according to any one of the tenth to twentieth inventions.

The twenty-second invention is characterized in that the plastic tube obtained by the inflation method is cut into sheets and used as a plastic sheet to be used as a material for a folder,
A method of manufacturing a folder according to any one of the first to fifth aspects.

According to the twenty-third aspect, a folder has a pair of front and back folder forming pieces composed of a plastic sheet, and a closing portion in which two adjacent sides of the folder forming piece are closed; An open part having two open sides facing each other, and a method for manufacturing a folder in which the open part is opened to store an object to be stored, wherein the plastic tube obtained by the inflation method is cut off to form a sheet. A method for producing a folder, wherein the folder is used as a plastic sheet as a material of the folder.

In the twenty-fourth aspect, the inner surface of the plastic tube has a pair of front and back folder forming pieces (11, 12).
A method for manufacturing a folder according to the twenty-second or twenty-third invention, characterized in that the folder is configured to be on the mating surface side.

The “plastic sheet” in the present invention is
It is used for a broad concept including plastic films.

Examples of the method for joining (sealing) the plastic sheets include heat sealing (thermal welding), impulse sealing, high-frequency joining, and ultrasonic joining, but are not particularly limited thereto.

As the plastic sheet, an uncolored one (transparent or translucent) or a sheet obtained by coloring the entire sheet or only a part of the sheet to a required color (pattern) can be used as appropriate.

(Operation) In a folder having a pocket portion on one or both outer surfaces of the folder forming piece, for example, a slip, a business card, Alternatively, different kinds of objects to be stored such as photographs and flexible disks can be stored in the pocket portion.

In a folder provided with a band in addition to the pocket portion, when the object stored in the pocket portion is large or long, a required portion of the object can be held by the band. .

In the case of a folder having a bent piece at the edge of the opening portion side of one of the folder forming pieces, an object to be stored is stored between the folder forming pieces, and then the bent piece is bent to form the folder forming piece. One end of the object to be stored can be held down with a bent piece. In addition, since the open portion is provided on the end side of the closed portion adjacent to the bent piece, the bent piece is easily sandwiched between the folder forming pieces. Furthermore,
Since the length of the open portion is set shorter than the length of the bent piece in the protruding direction, the bent piece sandwiched between the folder forming pieces does not easily come off.

[0042] In one of the open portions, a portion close to the closed portion is joined to form a bag-like folder.
Since the one end of the storage object is not held by the bag-shaped portion, the storage object does not easily fall off.

In a folder using a plastic sheet obtained by cutting a plastic tube obtained by an inflation method into a sheet shape and a method of manufacturing the same, a flat (sheet-like) plastic sheet in which air inside is completely expelled is used. Unlike a conventional manufacturing method using a tube as it is, it is possible to prevent a blocking phenomenon in which plastic sheets closely adhere to each other. Therefore, the pair of front and back plastic sheets constituting the folder can be easily opened, and the storage object can be easily taken in and out.

In a configuration in which the inner surface side of the plastic tube is the mating surface side of the pair of front and back folder forming pieces, the pair of folder forming pieces formed of a plastic sheet formed by cutting off the plastic tube is connected to the outer side. Since it has the property that it is slightly curled inside instead of warping, the stored objects such as the stored documents and the like are securely held and hardly fall off.

According to the folder manufacturing method of the present invention, a folder corresponding to the manufacturing method can be manufactured.

[0046]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the embodiments shown in the drawings. [Embodiment 1] FIG. 1 shows a first folder according to the present invention.
2, FIG. 2 is an explanatory view showing an II end face of FIG. 1, and FIG. 3 is an explanatory view of a use state of the folder shown in FIG.

The folder F1 is formed in a rectangular shape, and has a pair of front and back folder forming pieces 11 and 12 made of a plastic sheet. Folder forming piece 11,
12 are closed on two adjacent sides, and the closed portions 18 and 18a
It has become. The two sides facing the closing portions 18 and 18a are opened to form opening portions 19 and 19a. Then, by opening the opening portions 19 and 19a, an object P1 (see FIG. 3) such as a document can be stored in the folder F1.

On the outer surface of one of the folder forming pieces 11, a pocket portion 14 is provided by a pocket forming piece 13 provided along the closed portion 18a on the short side. In FIG. 1, both left and right end portions of the pocket forming piece 13 are closed by the long side closing portions 18 and 16, and the pocket portion 14 has a bag shape. The closing portion 16 is formed by welding the pocket forming piece 13 and the folder forming piece 11. In the present embodiment, the length of the pocket forming piece 13 in the width direction is about ４ of the length of the folder forming piece 11 in the longitudinal direction, but is not particularly limited to this. This is the same for a pocket forming piece described later.

The arc-shaped notch 15 provided in the folder forming piece 11 facilitates turning over the other folder forming piece 12 when the opening portions 19 and 19a are opened to store the object P1. . However, the notch 15 may not be provided in the folder forming piece 11.
This is the same for the folder according to the embodiment described later.

The upper right corner 10 of the folder F1 in FIG. 1 is cut out in an arc shape.

With the above configuration, the folder F1
Can store a relatively small object P2 such as a voucher, a business card, or a photograph or a flexible disk separately from the object P1 stored between the folder forming pieces 11 and 12 in the pocket portion 14. it can.

Thus, the conventional folder F, which is simply sandwiched between two plastic sheets and stored.
Unlike FIG. 36, it is possible to prevent a small object P2 such as a business card from dropping out of the opening portion 19 when carrying the folder F1 or taking in / out a document.
Separately from large or long documents, small items P
2 can be stored in the pocket portion 14, so that unlike the conventional folder F, the small storage object P2 can be immediately taken out.

It is to be noted that a folder forming piece (not shown) for partitioning may be provided between the folder forming pieces 11 and 12 to form a multi-layer, and a small piece for a heading protrudes from the edge on the opening 19 side. It can also be provided. This is the same for folders according to other embodiments described later.

(Method of Manufacturing Plastic Sheet S Used as Material of Folder F1) FIG. 4 is a schematic explanatory view showing a process of manufacturing a plastic sheet S used as a material of the folder. With reference to FIG. 4, a method for manufacturing a plastic sheet to be used as a material for a folder will be described.

The plastic sheet S, which is the material of the folder F1, is obtained from the plastic tube T obtained by the inflation molding machine A. The inflation molding machine A mainly includes an extruder 21, a die 22, a cooling ring 23 (eg, an air ring and a water ring),
It is composed of guide plates 24, 24, take-up rolls 25, 25, a take-up roll group 26, and the like. Since the inflation molding machine A is a well-known technique, detailed description of each component is omitted.

The plastic tube T extruded from the dice 22 attached to the extruder 21 gradually expands to a predetermined width when air is fed into the plastic tube T. Thereafter, the plastic tube T passes through the guide plates 24, 24 and is taken up by take-up rolls 25, 25. Then, by being taken up by the take-up roll group 26 and the like,
The plastic tubes T are overlapped in a flat shape (sheet shape).

The plastic tubes T superposed in a flat shape (sheet shape) are separated into two plastic sheets S, S by cutters 27, 27 provided behind the winding roll group 26. Thereafter, the two plastic sheets S, S are separately wound by winding rolls 28, 28.

More specifically, both ends of the superposed plastic tubes T in the width direction are cut by cutters 27, 27 to obtain two front and back plastic sheets S, S. Both ends T1, of the cut plastic tube T
T1 is taken up by a take-up roll 29 provided separately, and is reused as a material of the plastic sheet S.

As described above, the plastic tube T manufactured by the inflation method is completely cut into two plastic sheets S, S to be used as a material for the folder. Therefore, unlike the conventional manufacturing method in which a flat (sheet-shaped) plastic tube in which air inside is completely expelled is used as it is, it is possible to prevent a blocking phenomenon in which the plastic sheets S, S are closely adhered to each other. it can. Therefore, the pair of front and back plastic sheets constituting the folder F1 can be easily opened, and the object P1 can be easily taken in and out.

Further, since the plastic sheets S1 and S2 manufactured at low cost by the inflation method are used as materials, the production cost of the folder can be reduced.

In this embodiment, a plastic sheet formed by the inflation method is used.
It can also be manufactured using a plastic sheet manufactured by the T-die method.

In the present embodiment, two plastic sheets S, S are manufactured by making cuts at two places of the plastic tube T. However, the cuts are made in one direction of the plastic tube T and spread. Thus, one plastic sheet S can be manufactured.

(Method of Manufacturing Folder F1 Using Plastic Sheet S) FIG. 5 is a schematic explanatory view showing a method of manufacturing the folder according to the first embodiment. The method of manufacturing the folder F1 will be described with reference to FIGS. The method for manufacturing the folder F1 described below is one example, and the present invention is not limited to this.

In manufacturing the folder F1, two plastic sheets S1 and S2 wound in a roll shape are used. The plastic sheets S1 and S2 are obtained from the plastic tube T manufactured by the inflation method described above. This is the same for folders according to other embodiments described later. One plastic sheet S2 arranged on the lower side in FIG.
Wider than one. This wide plastic sheet S
2, a pocket forming piece 13 of the folder F1 is formed.

In the manufacturing process of the folder shown in FIG. 5, each component (for example, folder forming pieces 11, 12, pocket forming piece 13, closing part 1) after completion of folder F1 by plastic sheets S1, S2, S3.
8a), the plastic sheets S1, S2, and S3 are given the same reference numerals as the constituent members of the folder F1 for convenience of explanation. Also, in describing the manufacturing method, the names of the required parts of the plastic sheet are mainly replaced with the names of the respective constituent members after completion of the folder. The same applies to the manufacturing method described later.

The manufacturing apparatus of the folder F1 includes a bending apparatus B, a primary heat sealing apparatus C, a punching apparatus D,
It has a secondary heat sealing device E and a cutting device G. The plastic sheets S1 and S2 are processed by each device while being sent at a predetermined speed.

The folding device B has a disc-shaped pressing member 31 provided rotatably. By the pressing body 31,
One end in the width direction of the wide plastic sheet S2 is folded back to sandwich one end in the width direction of the narrow plastic sheet S1. Thus, the closed portion 18a on the short side at the fold of the folded portion, the pocket forming piece 13 at the folded portion, one folder forming piece 12 at the rest of the folded portion, and the other at the plastic sheet S1 sandwiched at the folded portion. Is formed.

Next, the plastic sheets S1 and S2 are sent to the primary heat sealing device C. With the primary heat sealing device C, a closed portion 16 at the right end of the pocket forming piece 13 shown in FIG. 3 is formed. The primary heat sealing device C has a narrow welding head 32 that moves up and down by an air cylinder (not shown), and a metal welding prevention plate 33 that prevents welding other than where necessary. The welding prevention plate 33 is disposed between the folder forming pieces 11 and 12.

Then, the welding head 32 is pushed down at predetermined intervals (predetermined time intervals) with respect to the sent plastic sheets S1 and S2, so that the pocket forming pieces 13 are pressed.
And one of the folder forming pieces 11 are joined in the width direction at predetermined intervals in the longitudinal direction. Thereby, the closing part 16 is formed.

Since the welding head 32 hits the welding prevention plate 33 with the folder forming piece 11 and the pocket forming piece 13 interposed therebetween, the folder forming piece 12 located on the back side of the welding prevention plate 33 is not welded. This allows
The opening 19 of the completed folder F1 (see FIG. 3)
The opening is made up to the closing portion 18a on the short side.

The plastic sheets S1 and S2 on which the closing portions 16 are formed are sent to the punching apparatus D. An arc-shaped notch 15 shown in FIG. The punching apparatus D has a punching die 34 having a cutting blade that moves up and down by an air cylinder (not shown), and a punching prevention plate 35 that prevents the folder forming piece 12 from being punched out by the punching die 34. . Then, the notches 15 are formed by pressing down the punching die 34 at predetermined intervals (predetermined time intervals) with respect to the sent plastic sheets S1 and S2.

Since the punching die 34 hits the punching prevention plate 35, the folder forming piece 12 located on the back side of the punching prevention plate 35 is not punched. Thus, the notch 15 is not formed in the folder forming piece 12.

Next, the plastic sheets S1 and S2 are sent to the secondary heat sealing device E. In the next heat sealing apparatus E, the long side closing portion 18 provided at the left end of the folder forming pieces 11 and 12 in FIG. 3 is formed adjacent to the closing portion 16. The secondary heat sealing device E includes a narrow welding head 3 that moves up and down by an air cylinder (not shown).
6.

Then, the welding head 36 is pressed down at predetermined intervals (predetermined time intervals) with respect to the sent plastic sheets S1 and S2, so that the pair of folder forming pieces 11 and 12 and the pocket forming piece 13 are elongated. At a predetermined interval in the width direction. Thereby, the closing part 18 and the pocket part 14 on the long side are configured.

The plastic sheets S1 and S2 on which the long side closed portions 18 are formed are sent to the cutting device G. The cutting device G has a cutting blade 37 that moves up and down by an air cylinder (not shown). Then, the closing part 1 is cut by the cutting blade 37.
6 and the closed portion 18 on the long side are cut to obtain a target folder F1.

Although the method of forming the arc-shaped corner 10 at the upper right of the folder F1 in FIG. 1 is omitted, the plastic sheets S1 and S2 are removed at the required positions in the manufacturing process shown in FIG. What is necessary is just to provide the punching processing apparatus which punches out and forms the corner part 10. This is the same for the first to eighth embodiments described later.

As described above, the plastic sheets S1 and S2, which are the materials of the folder F1, are obtained by completely separating the plastic tube T manufactured by the inflation method into two plastic sheets S and S. I have. Therefore, unlike the conventional manufacturing method in which a flat (sheet-shaped) plastic tube in which the air inside is completely expelled is used as it is, it is possible to prevent a blocking phenomenon in which the plastic sheets S1 and S2 are closely adhered to each other. it can. Therefore, compared to the folder obtained by the conventional manufacturing method, the folder forming pieces 11 and 12 can be easily opened, and the storage object P1 can be easily taken in and out.

Further, in the inflation method, plastic sheets S1 and S2 can be mass-produced inexpensively as compared with the T-die method. Therefore, as a result, the production cost of the folder can be kept low.

The order in which the devices other than the folding device B and the cutting device G are arranged is not particularly limited to the example shown in FIG. 5, but can be changed as appropriate. This is the same for the manufacturing apparatus of each folder described later. In addition, the structure of each device is not particularly limited to the above, and a known device can be appropriately used.

Further, by welding the pocket forming piece 13 and the one folder forming piece 11 at a required position in parallel with the closing portion 16, the pocket portion 14 of the folder F1 can be further divided. Thereby, small objects to be stored, such as business cards and prepaid cards, can be stored separately for each type. This is the same for a folder having a pocket portion 14 described later.

As the plastic sheet to be used as the material of the folder, a non-colored sheet (transparent or translucent) or a sheet obtained by coloring the entire sheet or only a part of the sheet to a required color (pattern) may be used. Can be used. Further, the plastic sheet used as the material of the folder F1 may be used by appropriately combining a non-colored plastic sheet and a colored plastic sheet, or a colored sheet different from each other. Further, a plastic sheet on which various printing patterns such as characters, pictures, marks, and the like are applied can also be used. As described above, by appropriately combining various colors and various print patterns, a folder having a high added value in design can be formed. This is the same for folders according to other embodiments described later.

FIG. 6 is a schematic explanatory view showing a part of another manufacturing process of the folder according to the first embodiment. Referring to FIGS. 3 and 6,
Another manufacturing method of the folder F1 will be described. Note that the same or equivalent parts as those of the folder manufacturing apparatus described above are denoted by the same reference numerals, and description of such parts will be omitted, and different points will be mainly described. This is the same for a folder manufacturing apparatus described later.

For the production of the folder F1, two plastic sheets S3 and S4 wound in a roll shape are used. The width of one plastic sheet S3 arranged on the upper side in FIG. 6 is about 8 times that of the other plastic sheet S4.
It's a fraction. This narrow plastic sheet S3
Thus, the pocket forming piece 13 of the folder F1 is configured.

First, a wide plastic sheet S4 is bent at the center in the width direction by the folding device B to form a pair of folder forming pieces 11, 12 and a closed portion 18a on the short side.

Next, a plastic sheet S3 having a small width is superimposed on the outer surface of one of the folder forming pieces 11 along the fold line (closed portion 18a on the short side) to form the pocket forming piece 13.

Thereafter, the plastic sheets S1 and S2 are sent to the primary heat sealing device N. The primary heat sealing device N has a narrow welding head 30 that moves up and down by an air cylinder (not shown).

Then, the welding head 30 is continuously pressed down on the plastic sheets S3 and S4 to be sent, so that the end of the folder forming piece 11 on the fold (short side closed portion 18a) side and the pocket forming piece are formed. 13 are joined in the longitudinal direction at one end in the width direction. This closes the lower end of the pocket forming piece 13 in FIG. The subsequent manufacturing process is the same as the process described with reference to FIG.

Although not shown, in this manufacturing method, a welded portion (closed portion) appears at the lower end of the pocket forming piece 13 in FIG. This will be described with reference to FIGS.
The same applies to the manufacturing method indicated by 24.

This manufacturing method can also be applied to each folder having a pocket portion described later.

(Further Another Method of Manufacturing Folder F1) FIG. 7 is a schematic explanatory view showing a part of another manufacturing process of the folder according to the first embodiment. With reference to FIGS. 3 and 7, still another method of manufacturing the folder F1 will be described.

To manufacture the folder F1, three plastic sheets S21, S22,
S23 is used. In FIG. 7, the lower two plastic sheets S22 and S23 have the same width. Further, the width of the plastic sheet S21 disposed above is about one-fourth of the width of the plastic sheets S22 and S23. With this narrow plastic sheet S21,
The pocket forming piece 13 of the folder F1 is configured.

First, the wide plastic sheet S2
2, S23 are overlapped to form a pair of folder forming pieces 11, 12. At the same time, a narrow plastic sheet S21 is superimposed on the outer surface of one of the folder forming pieces 11 along one end in the width direction,
The pocket forming piece 13 is constituted.

Next, the received plastic sheet S
21, S22, S23, the primary heat sealing device N
By continuously pressing down the welding head 30, the one end in the width direction of one folder forming piece 11 and the one end in the width direction of the pocket forming pieces 12, 13 are joined in the longitudinal direction.
Thereby, the closed portion 18a on the short side is formed. The subsequent manufacturing process is the same as the process described with reference to FIG.
Description is omitted.

[Embodiment 2] FIG. 8 is an explanatory diagram showing a use state of a folder according to a second embodiment of the present invention. Note that the same or equivalent portions as those of the folder F1 according to the first embodiment described above are denoted by the same reference numerals, and description of such portions will be omitted, and different points will be mainly described. . The same applies to the operation and effect of the folder. This is the same for folders according to other embodiments described later.

In the folder F2, unlike the folder F1 according to the first embodiment (see FIG. 3), the right end of the pocket forming piece 13 in FIG. 8 is not welded. Therefore, the object P2 can be put in and out of the pocket portion 14 from an oblique direction. The method of manufacturing the folder F2 is the same as the method of manufacturing the folder F1 according to the first embodiment (see FIGS. 5, 6, and 7), except that welding is not performed by the primary heat sealing device C.

[Third Embodiment] FIG. 9 is an explanatory front view showing a third embodiment of the folder according to the present invention.
FIG. 11 is an explanatory view showing the II-II end face of FIG. 9, and FIG. 11 is an explanatory view of the use state of the folder shown in FIG. Folder F3
Is provided with a band 41 having a required width in the folder F1 (see FIG. 3) shown in the first embodiment. Strip 4
3 is provided at a required position above the pocket forming piece 11 in FIG. 3 on the outer surface of the folder forming piece 11 on which the pocket forming piece 13 is provided.

According to the folder F3, the pocket portion 14
When the storage object P3 stored in the storage device P is large or long, by holding the upper side of the storage object P3 with the band 41, the storage object P3 can be prevented from falling off. The band 41 can be provided in folders F4, F6, and F8, which will be described later, including the pocket 14 or the pocket 14a.

(Method of Manufacturing Folder F3) FIG. 12 is a schematic explanatory view showing a manufacturing process of the folder according to the third embodiment. Referring to FIGS. 11 and 12, folder F
3 will be described.

In the apparatus for manufacturing the folder F3, the band 41
The manufacturing process of the folder F1 according to the first embodiment (see FIG. 5) except that a band body welding heat sealing device H (hereinafter, abbreviated as a band body sealing device) is provided. Is the same.

The band sealing device H includes a narrow welding head 32a that moves up and down by an air cylinder (not shown).
Metal anti-welding plate 3 for preventing welding other than where necessary
3a. The welding prevention plate 33a is arranged between folder forming pieces 11 and 12 described later.

In manufacturing the folder F3, three plastic sheets S5, S6, S7 wound in a roll shape are used.
Is used. The band 41 of the folder F3 is formed by the narrowest plastic sheet S5 arranged at the top in FIG.

First, the closing portion 18a on the short side, the pocket forming piece 13, the folder forming piece 1
1 and 12 are configured. Next, the primary heat sealing device C
Thereby, a closing portion 16 is provided.

At the same time, a narrow plastic sheet S is placed in a place other than the pocket forming piece 13 (in this embodiment, on the band sealing device H side of the folder forming piece 11).
5 are superposed in the longitudinal direction. Then, by pressing down the welding head 32a of the band sealing device H at a predetermined interval (a predetermined time interval), a required portion of the narrow plastic sheet S5 is joined to the folder forming piece 11. Thereby, the welding portion 42 at the right end of the band 41 in FIG.
Is formed.

The welding head 32a holds the welding prevention plate 33 with the band 41 and the folder forming piece 11 sandwiched therebetween.
Therefore, the folder forming piece 12 located on the back side of the welding prevention plate 33 is not welded. Thus, the opening of the opening 19 of the completed folder F1 (see FIG. 11) is not hindered.

After that, the notch 15
Is provided, the long heat side closing portion 18 provided at the left end in FIG. 11 is formed by the secondary heat sealing device E. At this time, welding of the closing portion 18b at the left end of the band 41 in FIG. 11 is also performed at the same time. After the closing portions 18 and 18b are formed, the cutting device G cuts between the closing portion 16 and the closing portion 18 to obtain a target folder F3.

[Fourth Embodiment] FIG. 13 is an explanatory front view showing a fourth embodiment of a folder according to the present invention.
4 is an explanatory view showing the III-III end face of FIG. 13, and FIG.
FIG. 4 is an explanatory diagram of a use state of the folder shown in FIG.

In the folder F4, in the opening 19 on the right end side of the pocket forming piece 13 in FIG. 13, a part close to the short side closing portion 18a is closed by the width of the pocket forming piece 13 and the closing portion 51 is closed. Has become. Thereby, as shown in FIG. 15, the lower side of the folder F4 has a bag shape.
Therefore, it is possible to prevent the stored object P1 stored between the folder forming pieces 11 and 12 from falling off from the opening portion 19 side.

In FIG. 13, on the upper side of the closing portion 51,
A notch 52 cut in an arc shape is provided slightly inside. Note that the notch 52 may not be provided.

(Method of Manufacturing Folder F4) FIG. 16 is a schematic explanatory view showing a manufacturing process of the folder according to the fourth embodiment. Referring to FIGS. 15 and 16, folder F
4 will be described. In the apparatus for manufacturing the folder F4, a punching apparatus for newly forming the cutout 52 provided above the closed section 51 in FIG. 15 is added to the apparatus for manufacturing the folder F1 according to the first embodiment (see FIG. 5). J is added, and instead of the primary heat sealing device C, a primary heat sealing device I for forming a closing portion 51 for making the lower side of the folder F4 into a bag shape is provided.

For manufacturing the folder F4, two plastic sheets S8 and S9 wound in a roll shape are used. First, the closing device 18a on the short side, the pocket forming piece 13, the folder forming piece 11,
12 are configured. Then, the plastic sheet S8,
S9 is sent to the primary heat sealing device I.

The primary heat sealing device I comprises a pair of welding heads 3 which move up and down by an air cylinder (not shown).
The welding heads 38, 38 are arranged at positions so as to sandwich the plastic sheets S8, S9 from above and below. This primary heat sealing device I is not provided with a welding prevention plate. Then, the folder forming piece 1 is
1 and 12 and the pocket forming piece 13 are welded and the
Is formed.

The plastic sheets S8 and S9 processed by the primary heat sealing device I are then sent to a punching device D where a notch 15 is formed and further sent to a secondary heat sealing device E where the long side is closed. A part 18 is formed.

Thereafter, the plastic sheets S8 and S9 are sent to the punching apparatus J. Punching machine J
Has a cutting die 39 provided with an elongated cutting blade which moves up and down by an air cylinder (not shown).

Then, by pressing down the punching die 39 at predetermined intervals (predetermined time intervals) with respect to the sent plastic sheets S8 and S9, a notch 52 provided at the right end of the folder F4 is formed. . After the formation of the notch 52, the cutting device G cuts the portion between the closing portion 16 and the long-side closing portion 18 to obtain a target folder F4.

[Fifth Embodiment] FIG. 17 is an explanatory view showing the use state of a folder according to a fifth embodiment of the present invention. Unlike the folder F4 according to the fourth embodiment (see FIG. 15), the folder F5 does not have a pocket portion below the folder F5 in FIG. The method of manufacturing the folder F4 is similar to that of the method of manufacturing the folder F4 according to the fourth embodiment except that one plastic sheet is used as a material and the plastic sheet is bent at the center in the width direction. FIG. 16),
Is the same.

In the folder F5, the closed portion 18 is formed on the long side (left end) of the folder F5 in FIG. 17, but is formed on the short side (lower end) of the folder F5. You can also.

[Embodiment 6] FIG. 18 is an explanatory front view showing a sixth embodiment of a folder according to the present invention.
9 is an explanatory view showing a VV end face in FIG. 18, and FIG.
FIG. 6 is an explanatory diagram of a use state of the folder shown in FIG. In the folder F6, unlike the folder F1 (see FIG. 1) according to the first embodiment, pockets 14, 14a are provided on both the front and back of the folder F6. 19 and 20
Reference numeral 13a denotes a pocket forming piece provided on the outer surface of the other folder forming piece 12 along the short side closed portion 18a. In FIG. 20, reference numeral 16a denotes a closing portion provided at an end of the pocket forming piece 13a on the opening 19 side. With the above-described configuration, a small storage object P2 such as a business card can be stored in both pocket portions 14 and 14a.

(Method of Manufacturing Folder F6) FIG. 21 is a schematic explanatory view showing the manufacturing process of the folder according to the sixth embodiment. A method for manufacturing the folder F6 will be described with reference to FIGS. The apparatus for manufacturing the folder F6 has a configuration in which the primary heat sealing apparatus K is provided instead of the primary heat sealing apparatus C provided in the apparatus for manufacturing the folder F1 according to the first embodiment (see FIG. 5). I have.

For the production of the folder F6, three plastic sheets S10, S11, S
12 are used. In FIG. 21, the upper two plastic sheets S10 and S11 have the same width. The width of the plastic sheet S12 disposed below is about one half of the width of the plastic sheets S10 and S11. A pair of front and back pocket forming pieces 13 and 13a is formed from the narrow plastic sheet S12.

First, the wide plastic sheet S1
A pair of folder forming pieces 11 and 12 are formed by superposing two sheets of 0 and S11. Next, the folding device B folds the narrow plastic sheet S12 at the center in the width direction to sandwich one end of the pair of folder forming pieces 11 and 12 in the width direction. Thus, the closed portion 18a on the short side is formed at the fold of the folded portion, and the pair of front and back pocket forming pieces 13 and 13a is formed at the folded portion.

Next, the plastic sheets S10, S1
1, S12 is sent to the primary heat sealing device K. The primary heat sealing device K has a pair of welding heads 71 and 71a that move up and down by an air cylinder (not shown). The welding heads 71 and 71a sandwich the plastic sheets S10, S11, and S12 from above and below. It is arranged in a suitable position.

Further, the heat sealing device K has a welding prevention plate 33 made of metal for preventing welding other than necessary portions. The welding prevention plate 33 is provided with the folder forming pieces 11,
12 are arranged.

Then, the welding heads 71, 71a are moved up and down at predetermined intervals (predetermined time intervals) with respect to the sent plastic sheets S10, S11, S12, so that the pair of pocket forming pieces 13, 13a and one pair are formed. Are joined in the width direction at predetermined intervals in the longitudinal direction. Thereby, the closing portions 16 and 16a are formed.

The welding head 71 contacts the welding prevention plate 33 with the folder forming piece 11 and the pocket forming piece 13 interposed therebetween, and the welding head 71a sandwiches the folder forming piece 12 and the pocket forming piece 13a. Since the folder forming pieces 11 and 12 hit the welding prevention plate 33 in a folded state, the folder forming pieces 11 and 12 located at positions sandwiching the welding prevention plate 33 are not welded to each other. Thus, the opening 19 of the completed folder F6 (see FIG. 20) opens to the closing part 18a on the short side. The subsequent manufacturing process is the same as the process described with reference to FIG.

The pocket forming pieces 13 and 13 in FIG.
Both of the right end portions a can be opened without welding, or can be opened without welding only one pocket forming side.

Further, similarly to the folder F3 (see FIG. 9) according to the third embodiment, the folder forming piece 11
A band 41 can be provided on the upper side of the outside of the device. In this case, the band 41 can be provided on the front side or the back side of the folder, or on both the front side and the back side.

Further, similarly to the folder F4 according to the fourth embodiment (see FIG. 15), the right ends of the pocket forming pieces 13 and 13a on the front and back sides are connected to the folder forming piece 1.
The lower side of the folder F6 can also be made into a bag shape by welding together with the components 1 and 12.

(Other Manufacturing Method of Folder F6) FIG.
FIG. 19 is a schematic explanatory view showing a part of another manufacturing process of the folder according to the sixth embodiment. 20 and 22, another method of manufacturing the folder F6 will be described. FIG.
In the manufacturing method indicated by, for the manufacture of the folder F6, two plastic sheets S13 wound in a roll shape,
S14 is used. One plastic sheet S14
Is about 4 times the width of the wide plastic sheet S13.
It's a fraction.

First, the wide plastic sheet S13 is bent at the center in the width direction by the folding device B2, and the pair of folder forming pieces 11 and 12 and the closing portion 18 on the short side are formed.
a. Next, the narrow plastic sheet S1
4 is folded back at the center in the width direction to sandwich the bent sides of the pair of folder forming pieces 11 and 12. This allows
A pair of front and back pocket forming pieces 13 and 13a at the folded portion
Is configured. The subsequent manufacturing process is the same as the process described with reference to FIG.

(Further Manufacturing Method of Folder F6) FIG. 23 is a schematic explanatory view showing a part of another manufacturing process of the folder according to the sixth embodiment. With reference to FIGS. 20 and 23, still another method of manufacturing the folder F6 will be described.
In the manufacturing method shown in FIG. 23, three plastic sheets S1 wound in a roll shape for manufacturing the folder F6.
5, S16 and S17 are used. Among them, the two plastic sheets S1 arranged above and below in FIG.
5, S17 has the same width. The width of the plastic sheet S16 is
It is about 8 times the width of S15 and S17.

First, the bending device B folds the wide plastic sheet S16 at the center in the width direction, and the pair of folder forming pieces 11 and 12 and the closing portion 18 on the short side.
a. Next, a pair of folder forming pieces 11, 1
2 on each of the outer surfaces, a narrow plastic sheet S1
5 and 17 are overlapped along the fold line (short side side closed portion 18a) to form a pair of pocket forming pieces 13 and 13
a.

Then, the plastic sheet S15,1
6 and 17 are sent to the primary heat sealing device N. Then, the welding head 30 is continuously pushed down, so that the fold (short side side closed portion 18a) side end portion of the pair of folder forming pieces 11 and 12 and the pair of pocket forming pieces 13 and 13a are formed.
Are joined in the longitudinal direction. This allows
In FIG. 20, the lower end of the pocket forming piece 13 is closed.

Note that the plastic sheets S15, 16,
Another welding head (not shown) may be provided on the back side of 17 (the side facing the welding head 30). Regarding this, another manufacturing process of the folder F6 described later (FIG. 2)
The same applies to 4). The subsequent manufacturing process is shown in FIG.
Since these steps are the same as those described in the above section, the description is omitted.

(Still Another Method of Manufacturing Folder F6) FIG. 24 is a schematic explanatory view showing a part of another manufacturing process of the folder according to the sixth embodiment. Figures 20, 24
, A still further method of manufacturing the folder F6 will be described. In the manufacturing method shown in FIG.
The four plastic sheets S24, S25, S26, and S27 wound up in a roll shape are used for the production of the above. Among them, the two plastic sheets S24 and S25 arranged on the upper and lower sides in FIG. 24 have the same width. The width of the plastic sheets S26 and S27 is about four times the width of the plastic sheets S24 and S25.

First, a wide plastic sheet S2
6, S27 are overlapped to form a pair of folder forming pieces 1
1 and 12. At the same time, a narrow plastic sheet S24, S25 is superimposed on each of the outer surfaces of the pair of folder forming pieces 11, 12 along one end in the width direction to form a pair of pocket forming pieces 13, 13.
a.

Thereafter, the plastic sheets S24, S2
5, S26 and S27 are sent to the primary heat sealing device N. Then, by continuously pressing down the welding head 30, one end in the width direction of the pair of folder forming pieces 11, 12 and one end in the width direction of the pair of pocket forming pieces 13, 13a are joined in the longitudinal direction. Thereby, the closed portion 18a on the short side is formed. The subsequent manufacturing process is the same as the process described with reference to FIG.

[Seventh Embodiment] FIG. 25 is an explanatory front view showing a seventh embodiment of a folder according to the present invention.
6 is a right side view explanatory view of the folder shown in FIG. 25, FIG.
FIG. 26 is an explanatory diagram of the use state of the folder shown in FIG. 25. The folder F7 is the folder F according to the fifth embodiment.
Unlike FIG. 5 (see FIG. 17), a bent piece 81 that can be bent inward and sandwiched between the folder forming pieces 11 and 12 is provided at an edge of the one folder forming piece 12 on the opening 19a side. are doing. Also, as shown in FIG. 27, a folding line 8 is provided between the bending piece 81 and the folder forming piece 12.
2 are formed, whereby the bent piece 81 can be bent neatly.

The end of the closed portion 18 on the long side adjacent to the bent piece 81 (the upper end in FIG. 25) is
Is provided between the folder forming pieces 11 and 12 so as to be easily sandwiched therebetween. The length of the opening 83 (the length between the opening 19a and the cutout base 83a) is the length of the bent piece 81 in the projecting direction (from the bending line 82 to the tip 8).
1a). As a result, the bent piece 81 folded back and sandwiched between the folder forming pieces 11 and 12 cannot be easily removed.

As shown in FIG. 27, the lower side of the folder F7 is formed in a bag shape by the closing portion 51.

According to the above-described structure, after the object P1 is stored between the folder forming pieces 11 and 12, the bent piece 81 is bent downward and the folder forming pieces 11 and 12 are bent.
If it is sandwiched between them, the bent piece 81 can hold down the upper end of the storage object P1. This makes it possible to more reliably prevent the object P1 housed between the folder forming pieces 11 and 12 from falling off.

If the bent piece 81 is glued, it can be used like an envelope. As a method of gluing, a method of sandwiching the bent piece 81 between the folder forming pieces 11 and 12 and gluing the outside of the bent piece 81 and the inside of the folder forming piece 11 is used. 11 and the inside of the bent piece 81 and the folder forming piece 11
Gluing the outside of the sheet. Of course, even if it is not glue, it can be sealed with a sealing device such as a tape or a stapler.

Further, since the lower side of the folder F7 is in the shape of a bag, a slightly thick one such as a magazine can be stored. Therefore, it can be suitably used for mailing a magazine, for example.

(Method of Manufacturing Folder F7) FIG. 28 is a schematic explanatory view showing a manufacturing process of the folder according to the seventh embodiment. Referring to FIGS. 27 and 28, folder F
7 will be described. The manufacturing apparatus of the folder F7 is similar to that of the fourth embodiment except that a folding curve forming apparatus L for forming the bending line 82 of the bent piece 81 and a punching apparatus M for forming the opening 83 are provided. This is the same as the manufacturing apparatus for the folder F4 (see FIG. 16).

For manufacturing the folder F7, a plastic sheet S18 wound into a roll is used. First, the plastic sheet S18 is bent by the folding device B.
Is folded in the width direction. At this time, the plastic sheet S
The folded pieces 81 are formed at one end in the width direction of the displaced plastic sheet S18 by overlapping the plastic sheets S18 with a required width in the width direction. Further, a closed portion 18a on the short side is formed by the fold of the folded portion, and a pair of folder forming pieces 11 and 12 is formed by the overlapping portion.

In addition, the plastic sheet S1
8 is processed by the folding curve forming device L. The folding curve forming device L has a disc-shaped pressing body 72 that can rotate in the circumferential direction. The periphery of the pressing body 72 is slightly pointed.
The pressing body 72 presses between the bending piece 81 and the folder forming piece 12 to form a bending line 82.

Next, the plastic sheet S18 is sent to the primary heat sealing device I to form the closing portion 51, and then sent to the punching device M. The punching apparatus M has a punching die 73 provided with a cutting blade that moves up and down by an air cylinder (not shown). Then, the punching die 73 is pushed down at a predetermined interval (a predetermined time interval) with respect to the sent plastic sheet S <b> 18, so that the punching die 81 moves to a required position from the bent piece 81 to a part of the folder forming pieces 11 and 12. An opening 83 is provided. Subsequent manufacturing steps are the same as those described with reference to FIG.

In FIG. 27, the lower right side of the folder F7 can be opened without welding. Further, the folder F7 can be manufactured by laminating two plastic sheets. Each manufacturing method is as described above.

[Eighth Embodiment] FIG. 29 is an explanatory front view showing a folder according to an eighth embodiment of the present invention.
0 is an explanatory view showing a VI-VI end face in FIG. 29. In the folder F8, a pocket portion 14 is provided by a pocket forming piece 13 below the folder forming piece 11 where the bent piece 81 is not provided.

(Method of Manufacturing Folder F8) FIG. 31 is a schematic explanatory view showing a part of the manufacturing process of the folder according to the eighth embodiment. A method of manufacturing the folder F8 will be described with reference to FIGS. The apparatus for manufacturing the folder F8 is similar to the folder F4 (FIG. 2) according to the seventh embodiment.
8) can be used.

One plastic sheet S20 arranged on the lower side in FIG. 31 is different from the other plastic sheet S19.
Wider than. This wide plastic sheet S1
9 form a bent piece 81 and a pocket forming piece 13 of the folder F8.

First, one end of the wide plastic sheet S20 in the width direction is folded back by the folding device B to sandwich one end of the narrow plastic sheet S19 in the width direction. At this time, by folding the plastic sheets S20 in the width direction (toward the folding curve forming apparatus L in FIG. 31) at a required width, the bent pieces 81 are formed on one end side of the shifted plastic sheets S20. Is done.
At the same time, the folding line 81 is pressed by the folding curve forming device L between the bending piece 81 and the folder forming piece 12 to form a bending line 82. Subsequent manufacturing steps are the same as those described with reference to FIG. 28, and a description thereof will not be repeated.

In FIG. 29, the right end of the pocket forming piece 13 can be left open without welding, or pockets can be provided on both the front and back of the folder F8. Further, the band 41 may be provided on the upper outside of the folder forming piece provided with the pocket portion. Such a folder manufacturing method may be appropriately combined with the various folder manufacturing methods described above.

[Embodiment 9] FIG. 32 is an explanatory view showing the use state of a folder according to a ninth embodiment of the present invention. In the folder F9, unlike the folder F1 according to the first embodiment (see FIG. 1), a corner portion 10a formed by cutting out in an arc shape is also formed at the lower end of the closing portion 16.

(Method of Manufacturing Plastic Sheet S Used as Material of Folder F9) The plastic sheet S is shown in FIG.
As described above, the tubular plastic tube T manufactured by the inflation method is cut into two parts to be manufactured. For this reason, the plastic sheets S, S
Has a property (curled) that is slightly curved or easily curved in one of the front and rear surface directions. The advantage of manufacturing the folder F9 using the plastic sheet S having the property of easily bending will be described later.

FIG. 33 is a schematic explanatory view showing a process of printing a plastic sheet as a material of a folder. When printing a pattern, a character, a mark, or the like on the folder F9, a plastic sheet S on which a pattern or the like is printed in advance is used. Printing is performed on either the front surface or the back surface of the plastic sheet S, or on both the front surface and the back surface, depending on the target folder.

In FIG. 33, reference numeral 61 indicates a feed roller, and reference numeral 6
2 is a transfer roller, 63 is a gravure printing machine, 64
Denotes a drying device, and reference numeral 65 denotes a winding roller.

The roll-shaped plastic sheet S is fed by the feed roller 61 and the transfer roller 62 to the gravure printing machine 6.
3 and a picture or the like is printed. In addition, in the gravure printing machine 63, a varnish which is a pattern protection layer is applied to the surface of the printing surface together with printing of a pattern or the like (also referred to as “varnish printing”). By protecting the printing surface with the varnish, even if the plastic sheet S is rubbed at the time of manufacturing a folder F9 to be described later, the printing surface is not easily damaged. Further, even when the product is manufactured so that the print surface appears on the surface of the folder F9 after the product, the print surface is protected by the varnish, so that printing is not easily peeled off when the folder F9 is used. The application of a varnish is also used for cosmetics of a printed surface.

The varnish applied to the printing surface is, for example, a colorless transparent or translucent ink, and a known material such as urethane or isocyanate can be appropriately used.

The printed plastic sheet S is dried by the drying device 64, and the pattern is fixed on the plastic sheet S. After that, the plastic sheet S is wound up in a roll shape by the winding roller 65.

Since the gravure printing machine employs a known technique, a detailed description of the structure is omitted. Further, other known printing methods such as flexographic printing, offset printing, and screen printing can also be employed.

(Method of Manufacturing Folder F9 Using Plastic Sheet S) FIG. 34 is a schematic explanatory view showing a method of manufacturing a folder according to the ninth embodiment, and FIG. It is explanatory drawing which shows the isolation | separation process.

The manufacturing apparatus of the folder F9 is mainly different from the manufacturing apparatus of the folder F1 according to the first embodiment (see FIG. 5) in that the winding removing apparatuses Q1 and Q2, the folding line processing apparatus R, Ultrasonic processing device V and fusing device Y
Is provided.

For the production of the folder F9, two plastic sheets S1 and S2 wound in a roll shape are used. One plastic sheet S2 disposed on the lower side in FIG. 34 is wider than the other plastic sheet S1. A portion of the wide plastic sheet S2 constitutes the pocket forming piece 13 of the folder F9.
Hereinafter, a method of manufacturing the folder F9 will be described in detail step by step.

The manufacturing apparatus of the folder F9 includes the curling removing apparatuses Q1 and Q2, the folding line processing apparatus R, the folding apparatus U, the ultrasonic processing apparatus V, the heat sealing apparatus C, the punching apparatuses W1 and W2, and the sheet pressing apparatus X. , A punching device D and a fusing device Y. The plastic sheet S is processed by each device while being sent at a predetermined speed.

Each of the curling removal devices Q1, Q2 has a pair of rollers 31a, 31a (also referred to as a heating roller and an iron roller) for sandwiching the plastic sheets S1, S2 from above and below, respectively. The rollers 31a are heated to, for example, 50 to 60 ° C. by a heat source such as electricity (not shown). In some cases, the plastic sheets S1 and S2 are rolled up to have a curl, but the curl is removed by passing through the curl removing devices Q1 and Q2.

The folding line processing apparatus R includes a disc-shaped pressing body 91 whose peripheral edge is slightly sharp. This pressing body 91
Presses the plastic sheet S2 while rotating, and FIG.
A folding line 121 constituting the closing portion 18a shown in FIG. As a result, the plastic sheet S2 is easily folded, and the closed portion 18a is finely finished.

Next, the plastic sheets S1 and S2 are sent to the folding device U. The folding device U is provided with a folding plate (not shown) provided in a V-shape. With this folding device U, one end in the width direction of the wide plastic sheet S2 is folded at the fold line 121 to sandwich one end in the width direction of the narrow plastic sheet S1. Thus, the pocket forming piece 13 is formed at the folded portion of the plastic sheet S2, the one folder forming piece 12 is formed at the rest of the folded portion, and the other folder forming piece 11 is formed of the plastic sheet S1 sandwiched between the folded portions.

The folding device U may use the disc-shaped pressing body 33 described in the first embodiment.

Next, the plastic sheets S1 and S2 are
It is sent to the ultrasonic processing device V. The folded portion (closed portion 18a) of the plastic sheet S2 is pressed by the ultrasonic waves generated from the ultrasonic processing device V, and the plastic sheet S2 is creased.

Subsequently, the plastic sheets S1, S2
Is sent to the heat sealing device C and the punching device W1. The closed portion 16 at the right end of the pocket forming piece 13 shown in FIG. 32 is formed by the heat sealing device C. The arc-shaped corner 10 shown in FIG. 32 is formed by the punching apparatus W1. The punching device D has a punching die 92 having a cutting blade that moves up and down by an air cylinder (not shown). And the sent plastic sheet S
By pressing down the punching die 92 at a predetermined interval (a predetermined time interval) with respect to 1 and S2, the corner portion 10 is formed.

Thereafter, the plastic sheets S1, S2
Is sent to the sheet pressing device X. Sheet pressing device X
Is provided with a pressing portion (symbol omitted) that moves up and down by an air cylinder (not shown). Then, by pressing down the pressing portion at predetermined intervals (predetermined time intervals) with respect to the sent plastic sheets S1 and S2, unevenness (undulation) generated in the heat sealing device C is extended and removed.

The plastic sheets S1 and S2 processed by the sheet pressing device X are sent to a punching device D and a punching device W2. In the punching apparatus D, an arc-shaped notch 15 shown in FIG. 32 is formed. The punching apparatus W2 has the same or almost the same structure as the above-described punching apparatus W1. In FIG. 32, the corner 10 is formed at the lower end of the closing portion 16 by the punching die 92 of the punching apparatus W2.
a is formed.

Next, the plastic sheets S1, S2
Is finally sent to the fusing device Y. The fusing device Y has a cutting blade 93 that moves up and down by an air cylinder (not shown).
And a narrow-width fusing head 94 which is moved up and down by an air cylinder (not shown). The cutting blade 93 and the fusing head 94 are provided adjacent to each other,
3 is provided before the fusing head 94 (on the side of the plastic sheets S1 and S2 wound in a roll).

FIG. 35 (a) shows a state where the plastic sheets S1 and S2 are blown off by the fusing head 94 and the target folder F9 is cut off. FIG. 35 (b)
The cutting edge 93 cuts the edge (right end) of the plastic sheets S1 and S2.

As shown in FIG. 35 (a), when the fusing head 94 is first pressed down, the plastic sheet S
1 and S2 are melted, and the target folder F9 is cut off and manufactured. Due to this fusing, a closed portion 18 is formed at the left edge of the folder F9 separated in FIG. On the other hand, on the right edges of the plastic sheets S1 and S2, a welding portion 111 unnecessary for manufacturing the folder F9 is provided.
Is formed.

Subsequently, the cutting blade 93 was slightly delayed from the welding.
Is pushed down. The unnecessary welding portion 111 is cut off by the cutting blade 93, and the plastic sheet S is removed.
An opening portion 19 is formed at 1 and S2. As described above, the folder F9 is formed by a series of steps of fusing and cutting.
Can be manufactured quickly.

As described above, the plastic sheets S1 and S2, which are the material of the folder F9, use a plastic sheet formed by cutting a plastic tube T manufactured by an inflation method into two pieces. For this reason, the plastic sheets S1 and S2
It has a characteristic that it is slightly curved in one of the front surface and the rear surface, or is easily curved.

For this reason, the plastic tube T is arranged so that the inner surface side is the mating surface side of the one folder forming piece 11 and the other folder forming piece 12. That is, in FIG. 34, the plastic sheet S1 is arranged such that the central portion in the width direction is curved upward, and the plastic sheet S2 is arranged such that the central portion in the width direction is curved downward.

Therefore, the folder F9 shown in FIG.
The folder forming piece 11 and the folder forming piece 12
Rather than curling outward, it has the property of curling slightly inward. Therefore, the stored documents are securely held, and are hardly dropped. This is the same for the other embodiments already described.

The apparatus for manufacturing a folder according to each embodiment described above is not limited to the above-described apparatus, and can be configured by appropriately combining the apparatus for manufacturing each folder described above.

The terms and expressions used in the present specification are for explanation only, are not restrictive, and do not exclude the terms and expressions equivalent to the above-mentioned terms and expressions. Further, the present invention is not limited to the illustrated embodiment, and various modifications are possible within the scope of the technical idea.

[0182]

The present invention has the above configuration and has the following effects. (A) In a folder in which a pocket portion is provided on one or both outer surfaces of a pair of folder forming pieces, an object to be stored can be separately stored between the folder forming piece and the pocket portion. it can.

(B) In a folder provided with a band in addition to a pocket portion, when the object stored in the pocket portion is large or long, a required portion of the object is held by the band. This can prevent the stored object from falling off.

(C) In the case of a folder having a bent piece at the edge of the opening portion side of one of the folder forming pieces, after storing an object to be stored between the folder forming pieces, the bending piece is bent and folded. The object stored between the folder forming pieces can be prevented from falling off by being sandwiched between the forming pieces and pressing one end of the stored object with the bent piece. In addition, the length of the opening that allows the folded piece to be easily sandwiched between the folder forming pieces is set shorter than the length of the bent piece in the projecting direction. The piece does not come off easily. Therefore, it is possible to prevent the stored object stored between the folder forming pieces from falling out.

(D) In one of the open portions, a part of the folder close to the closed portion is joined and formed into a bag shape. Since the object to be stored is hooked at the portion, the object to be stored can be prevented from coming off.

(E) In a folder using a plastic sheet obtained by cutting a plastic tube obtained by an inflation method and forming a sheet, and a method of manufacturing the same, a flat plastic tube in which air inside is completely expelled is used. In contrast to the conventional manufacturing method in which the plastic sheet is used as it is, it is possible to prevent a blocking phenomenon in which the plastic sheets are closely adhered to each other. Therefore, the pair of front and back plastic sheets constituting the folder can be easily opened, and the storage object can be easily taken in and out.

(F) In the case where the inner surface side of the plastic tube is configured to be the mating surface side of the pair of front and back folder forming pieces, a pair of folder forming pieces formed of a plastic sheet formed by separating the plastic tube. However, since it has a property that it is not easily bent outward but rather easily curled inward, stored objects such as stored documents and the like are securely held and hardly fall off.

(G) According to the folder manufacturing method of the present invention, a folder corresponding to the manufacturing method can be manufactured.

[Brief description of the drawings]

FIG. 1 is an explanatory front view showing a folder according to a first embodiment of the present invention.

FIG. 2 is an explanatory view showing an II end face of FIG. 1;

FIG. 3 is an explanatory diagram of a use state of the folder shown in FIG. 1;

FIG. 4 is a schematic explanatory view showing a manufacturing process of a plastic sheet as a material of a folder.

FIG. 5 is a schematic explanatory view showing a method of manufacturing the folder according to the first embodiment.

FIG. 6 is a schematic explanatory view showing a part of another manufacturing process of the folder according to the first embodiment.

FIG. 7 is a schematic explanatory view showing a part of another manufacturing process of the folder according to the first embodiment.

FIG. 8 is an explanatory diagram illustrating a use state of a folder according to a second embodiment of the present invention.

FIG. 9 is an explanatory front view showing a folder according to a third embodiment of the present invention.

FIG. 10 is an explanatory view showing the II-II end face of FIG. 9;

FIG. 11 is an explanatory diagram of a use state of the folder shown in FIG. 9;

FIG. 12 is a schematic explanatory view showing a manufacturing process of the folder according to the third embodiment.

FIG. 13 is an explanatory front view showing a fourth embodiment of the folder according to the present invention.

FIG. 14 is an explanatory view showing an end face taken along the line III-III of FIG. 13;

FIG. 15 is an explanatory diagram of a use state of the folder shown in FIG. 13;

FIG. 16 is a schematic explanatory view showing a manufacturing process of the folder according to the fourth embodiment.

FIG. 17 is an explanatory view showing a use state of a folder according to a fifth embodiment of the present invention.

FIG. 18 is an explanatory front view showing a folder according to a sixth embodiment of the present invention.

FIG. 19 is an explanatory view showing a VV end face in FIG. 18;

FIG. 20 is an explanatory diagram of a use state of the folder shown in FIG. 18;

FIG. 21 is a schematic explanatory view showing a manufacturing process of the folder according to the sixth embodiment.

FIG. 22 is a schematic explanatory view showing a part of another manufacturing process of the folder according to the sixth embodiment.

FIG. 23 is a schematic explanatory view showing a part of another manufacturing process of the folder according to the sixth embodiment.

FIG. 24 is a schematic explanatory view showing a part of another manufacturing process of the folder according to the sixth embodiment.

FIG. 25 is an explanatory front view showing a seventh embodiment of the folder according to the present invention.

FIG. 26 is a right side view explanatory view of the folder shown in FIG. 25.

FIG. 27 is an explanatory diagram of a use state of the folder shown in FIG. 25;

FIG. 28 is a schematic explanatory view showing the manufacturing process of the folder according to the seventh embodiment.

FIG. 29 is an explanatory front view showing the eighth embodiment of the folder according to the present invention.

FIG. 30 is an explanatory view showing a VI-VI end face of FIG. 29;

FIG. 31 is a schematic explanatory view showing a part of the manufacturing process of the folder according to the eighth embodiment.

FIG. 32 is an explanatory view showing a use state of a folder according to a ninth embodiment of the present invention.

FIG. 33 is a schematic explanatory view showing a step of printing a plastic sheet as a material of a folder.

FIG. 34 is a schematic explanatory view showing a folder manufacturing method according to the ninth embodiment, and FIG. 35 is an explanatory view showing a folder separating step which is the final stage of the folder manufacturing step.

FIG. 35 is an explanatory view showing a folder separating step which is the final stage of the folder manufacturing step.

FIG. 36 is an explanatory diagram of a use state of a conventional folder.

[Explanation of symbols]

 11, 12 Folder forming piece 10, 10a Corner portion 13 Pocket forming piece 14, 14a Pocket portion 15 Notch 16 Closed portion 18, 18a Closed portion 19, 19a Opening portion 21 Extruder 22 Dice 23 Cooling ring 24 Guide plate 25 Take-off roll Reference Signs List 26 take-up roll group 27 cutter 29 take-up roll 31 pressing body 31a roller 32a welding head 33a welding prevention plate 34 punching die 35 punching prevention plate 30, 36, 38 welding head 37 cutting blade 39 punching die 41 band 42 welding part 51 closing Part 52 Notch 61 Feed roller 62 Transfer roller 63 Gravure printing machine 64 Drying device 65 Take-up roller 71 Welding head 72 Pressing body 73 Cutting die 81 Folding piece 81a Folding piece tip 82 Bending line 83 Opening 83a Notch base 91 Pressing body 92 Cutting die 93 Cutting blade 94 Fusing head 111 Welding part 121 Folding line F1 to F8 Folder A Inflation molding machine B, B2 Bending device C, I, J, K, N Primary heat sealing device D, M Punching device E Secondary heat sealing device G Cutting device H Band body sealing device L Folding curve forming device Q1, Q2 Curling removal device R Folding line processing device U Folding device V Ultrasonic processing device W1, W2 Punching device X Sheet pressing device D Punching device Y Fusing device P , P1, P3 Document S, S1-S20 Plastic sheet T, T1, T1 Plastic tube

Claims (24)

[Claims] A closed portion (18) having a pair of front and back folder forming pieces (11, 12) made of a plastic sheet, and two adjacent sides of the folder forming pieces (11, 12) being closed. , 18a), and an opening (19, 19a) having two sides open facing the closing portion (18, 18a), and the opening (19, 19a).
19a) to open the folder (F1, F2, F3, F4, F6, F8, F9) for storing the object to be stored (P1), and one of the folder forming pieces (11, 12). Or, a pocket portion (14, 14a) is provided on both outer surfaces, the folder. 2. A closed part (18) having a pair of front and back folder forming pieces (11, 12) made of a plastic sheet, and two adjacent sides of the folder forming pieces (11, 12) being closed. , 18a), and an opening (19, 19a) having two sides open facing the closing portion (18, 18a), and the opening (19, 19a).
19a) to open the folder (F1, F2, F3, F4, F6, F8, F9) for storing the object to be stored (P1), and one of the folder forming pieces (11, 12). Or, on both outer surfaces, pocket portions (13, 13a) provided along one of the two sides constituting the closed portion (18, 18a) closed portion (18a), the pocket portion (14,14a) is provided, The folder characterized by the above-mentioned. 3. An object stored in the pocket portion (14, 14a).
The folder according to claim 1 or 2, further comprising a band (41) that holds a required portion of the item (P3) and prevents the object (P3) from falling off. 4. A bent piece which can be bent inward and sandwiched between the folder forming pieces (11, 12) at an edge of the opening part (19a) side of one of the folder forming pieces (12). (8
1) is provided, and the bent piece (81) is sandwiched between the folder forming pieces (11, 12) on the end side of the closing portion (18) adjacent to the bent piece (81). An opening (83) for facilitating the bending is provided, and the length of the opening (83) is set shorter than the length of the bent piece (81) in the protruding direction. The folder according to item 1, 2 or 3. 5. A closing part (18) having a pair of front and back folder forming pieces (11, 12) made of a plastic sheet, and two adjacent sides of the folder forming pieces (11, 12) are closed. , 18a), and an open portion (19, 19a) having two open sides facing the closed portion (18, 18a), and the open portion (19, 19a).
19a) to open the folder (F7) in which the object to be stored (P1) is to be stored, wherein one of the folder forming pieces (12) has an inside edge at the opening portion (19a) side. Fold and create folder forming pieces (11,12)
A bent piece (81) that can be sandwiched between is provided, and the bent piece (81) is attached to the folder on the end side of the closing portion (18) adjacent to the bent piece (81). An open portion (83) is provided to facilitate sandwiching between the forming pieces (11, 12), and the length of the open portion (83) is shorter than the length of the bent piece (81) in the protruding direction. A folder that has been set. 6. A part of one of the opening portions (19), which is closer to the closing portion (18a), is joined to form a bag. The folder described in 4 or 5. 7. The plastic sheet according to claim 1, wherein the plastic tube obtained by cutting off a plastic tube obtained by an inflation method is formed into a sheet shape. Folder. 8. A closing portion (18) having a pair of front and back folder forming pieces (11, 12) made of a plastic sheet, and two adjacent sides of the folder forming pieces (11, 12) are closed. , 18a), and an open portion (19, 19a) having two open sides facing the closed portion (18, 18a), and the open portion (19, 19a).
19a) is a folder (F1, F2, F3, F4, F5, F6, F7, F8, F9) in which the object to be stored (P1) is stored, wherein the plastic sheet is obtained by an inflation method. A folder, characterized by using a sheet formed by separating a plastic tube provided. 9. The folder according to claim 7, wherein the inner surface side of the plastic tube is configured to be a mating surface side of a pair of front and back folder forming pieces (11, 12). 10. A pair of front and back folder forming pieces (11, 1).
2), a plastic sheet unwound from a roll to form a pocket forming piece (13) and one closed portion (18a)
Step of folding one end in the width direction of another plastic sheet (S1) fed from the roll body by folding one end in the width direction of (S2), forming the other closed part (18) and pocket part (14) Joining or fusing each of the plastic sheets (S1, S2) in the width direction at predetermined intervals in the longitudinal direction, after joining or after fusing, the plastic sheets (S1, S2) in the width direction. Cutting at a predetermined position in the folder. 11. A pair of front and back folder forming pieces (11, 12).
And bending the plastic sheet (S4) fed from the roll at the center in the width direction to form one closed portion (18a), and forming the pocket forming piece (13) by folding the plastic sheet (S4). Superimposing another plastic sheet (S3) having a width smaller than that of the folded plastic sheet (S4) on the outer surface of the folded plastic sheet (S4) along the fold, a fold side end of the folded plastic sheet (S4) Joining one end of the other plastic sheet (S3) in the width direction with the other in the longitudinal direction, and forming each of the plastic sheets (S3, S4) to form the other closed portion (18) and pocket portion (14). Joining or fusing at a predetermined interval in the longitudinal direction in the width direction; and after cutting or after fusing, cutting each of the plastic sheets (S3, S4) at a predetermined position in the width direction. , Characterized in that it comprises a method for manufacturing a folder. 12. A pair of front and back folder forming pieces (11, 12).
In order to form a plastic sheet (S22, S23), each of which is unreeled from the roll body, a step of superimposing the plastic sheet (S22, S23) on the outer surface of one of the plastic sheets (S22) to form a pocket forming piece (13), A step of laminating another plastic sheet (S21) narrower than the plastic sheet (S22) along one end in the width direction of the plastic sheet (S22), to form one closed portion (18a). Joining one end of the wide plastic sheet (S22, S23) in the width direction and one end of the narrow plastic sheet (S21) in the width direction in the longitudinal direction, the other closing part ( 18) and forming the pocket portion (14) by bonding or fusing the plastic sheets (S21, S22, S23) at predetermined intervals in the longitudinal direction, in the width direction, and forming, After the above fusing , Characterized in that it comprises the step of cutting at a predetermined position above the plastic sheet (S21, S22, S23) to the width direction, the manufacturing method of the folder. 13. A pair of front and back folder forming pieces (11, 12).
A step of superimposing the plastic sheets (S10, S11) respectively unwound from the roll body to form a closed part (18a) and a pair of pocket forming pieces (13, 13a)
In order to form a plastic sheet (S10, S11), another plastic sheet (S12) narrower than the plastic sheet (S10, S11) is folded at a required position in the width direction, and the plastic sheet (S10, S11) is folded.
Step 11) sandwiching one end side in the width direction of 11), and forming each of the plastic sheets (S10, S11, S12) in the longitudinal direction to form the other closed portion (18) and a pair of pocket portions (14, 14a). At the interval of, joining or fusing in the width direction, after the joining or after fusing, cutting the plastic sheet (S10, S11, S12) at a predetermined position in the width direction, You want to make a folder. 14. A pair of front and back folder forming pieces (11, 12).
And bending the plastic sheet (S13) fed from the roll body at the center in the width direction to form one closed portion (18a), and forming the pair of pocket forming pieces (13, 13a) with the plastic A step of folding another plastic sheet (S14) having a width smaller than that of the sheet (S13) at a required position in the width direction and sandwiching the folded side of the plastic sheet (S13), the other closing part (18) and the pair of Joining or fusing the plastic sheets (S13, S14) in the width direction at predetermined intervals in the longitudinal direction to form the pocket portions (14, 14a); after the joining or after the fusing, Cutting the sheets (S13, S14) at predetermined positions in the width direction. 15. A step of bending a plastic sheet (S16) fed from a roll body at a central portion in a width direction to form a pair of folder forming pieces (11, 12) and one closed portion (18a); In order to form pocket forming pieces (13, 13a), on each outer surface of the folded plastic sheet (S16), another plastic sheet (S15, S17) having a width smaller than that of the folded plastic sheet (S16) Overlapping each other along the fold line, joining longitudinally one end in the width direction of the fold side end of the folded plastic sheet (S16) and another narrow plastic sheet (S15, S17). The plastic sheets (S15, S16, S17) are joined or blown in the width direction at predetermined intervals in the longitudinal direction to form the other closed portion (18) and the pair of pocket portions (14, 14a). Step, above joining Cutting the plastic sheet (S15, S16, S17) at a predetermined position in the width direction after or after the fusing, a method of manufacturing a folder. 16. A pair of front and back folder forming pieces (11, 12).
To form a pair of pocket forming pieces (13, 13a) to form a pair of pocket forming pieces (13, 13a), each of the outer sides of the plastic sheet (S26, S27). A step of superposing another plastic sheet (S24, S25) having a width smaller than that of the plastic sheet (S26, S27) along one end in the width direction of the plastic sheet (S26, S27), Joining one end in the width direction of the plastic sheet (S24, S25, S26, S27) in the longitudinal direction to form a closed portion (18a) of the other, the other closed portion (18) and a pair of pocket portions ( 14,14a) to form the above plastic sheet (S24, S25, S26, S2
7) joining or fusing in the width direction at predetermined intervals in the longitudinal direction, cutting the plastic sheet (S24, S25, S26, S27) at a predetermined position in the width direction after the bonding or the fusing. A method of manufacturing a folder. 17. In order to make the pocket portions (14, 14a) into a bag shape,
A plastic sheet forming one or both pocket forming pieces (13, 13a) and a plastic sheet forming a folder forming piece (11, 12) provided on the outer surface of the plastic sheet are separated from each other by a predetermined length. 17. The method for manufacturing a folder according to claim 10, comprising a step of joining in a width direction at intervals. 18. An object (P) stored in a pocket portion (14).
The outer surface of the plastic sheet (S6) forming the folder forming piece (11) in order to form the band (41) for holding the required portion of (3) and preventing the stored object (P3) from falling off. Of the plastic sheet (S7) forming the pocket forming piece (13), another plastic sheet (S5) of the required width unwound from the roll body is superimposed in the longitudinal direction, and The method for manufacturing a folder according to any one of claims 10 to 17, further comprising a step of joining at a location. 19. A folder forming piece (1)
The plastic sheets forming the pair of folder forming pieces (11, 12) are shifted in the width direction by the required width to form a folded piece (81) that can be sandwiched between Fitting step, an opening (83) for facilitating the folding piece (81) to be sandwiched between the folder forming pieces (11, 12).
Cutting out a required portion of the plastic sheet so as to form a length shorter than the length in the protruding direction of 1),
The method for manufacturing a folder according to any one of claims 10 to 18, comprising: 20. A pair of folder forming pieces (11, 12), one closed portion (18a) and a bent piece (81) that can be bent inward and sandwiched between the folder forming pieces (11, 12). Forming the plastic sheet (S18) unwound from the roll body in the width direction while shifting the plastic sheet (S18) by a required width, and placing the bent piece (81) between the folder forming pieces (11, 12). Insert the opening (83) to make it easier to
Step of cutting out a required portion of the plastic sheet (S18) so as to form a length shorter than the length in the protruding direction of 1), and forming the plastic sheet (S18) so as to form the other closed portion (18) At a predetermined interval in the longitudinal direction, joining or fusing in the width direction, After the joining or after the fusing, cutting the plastic sheet (S18) at a predetermined position in the width direction, The method of manufacturing the folder. 21. A step of joining a required portion of a plastic sheet so as to join a part of one of the opening portions (19) near the closing portion (18a) into a bag shape. The method for manufacturing a folder according to any one of claims 10 to 20, wherein: 22. The method for manufacturing a folder according to claim 10, wherein the plastic tube obtained by the inflation method is cut into sheets and used as a plastic sheet as a material for the folder. . 23. A closing portion (18) having a pair of front and back folder forming pieces (11, 12) made of a plastic sheet, and two adjacent sides of the folder forming pieces (11, 12) being closed. , 18a) and an opening (19, 19a) having two sides open opposite to the closing part (18, 18a), and the opening (1
9,19a) to open the folder (F1, F2, F3, F4, F5, F6, F7, F8, F9) in which the object (P1) is stored, obtained by the inflation method. A method for manufacturing a folder, comprising separating a formed plastic tube into a sheet shape and using it as a plastic sheet to be used as a material for the folder. 24. The method for manufacturing a folder according to claim 22, wherein the inner surface of the plastic tube is configured to be the mating surface of the pair of front and back folder forming pieces (11, 12). .