JP2004042666A - Folder and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a folder which can partition and store a stored article and its fabricating method. <P>SOLUTION: The folder F1 is formed in rectangular shape while having a folder forming piece 11 and 12 composed of a plastic sheet. Two-sides side at which the folder forming pieces 11 and 12 adjoin each other is closed, which comprises a closing part 18 and 18a. The two sides facing the closing part 18 and 18a is opened, which comprises a opening part 19 and 19a. In the surface of an external side of the one folder forming piece 11, a pocket part 14 is provided by a pocket forming piece 13 attached along with the closing part 18a on the short edge side.The right/left ends of the pocket forming piece 13 are closed by the closing part 18 and a closing part 16 on the long edge side, thereby the pocket part 14 is formed into a bag. The closing part 16 is formed by welding the pocket forming piece 13 with the folder forming piece 11. <P>COPYRIGHT: (C)2004,JPO

Description

The present invention relates to a folder for accommodating a storage object such as a document between a pair of stacked plastic sheets and a method for manufacturing the same.
More particularly, the present invention relates to a folder capable of separately storing objects to be stored 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.

Conventionally, 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, 1a (mainly abbreviated as a plastic sheet in the present specification) are closed, and two sides 3 opposed to this are closed. is open. Then, an object 4 such as a document is interposed between the opened plastic sheets 1 and 1a and stored and used.

プ ラ ス チ ッ ク By the way, at present, the plastic sheet as the material of the 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 flushed out with air inside, and overlapped in a flat shape (sheet shape). After that, the folder is manufactured by welding and cutting in a flat state.
JP-A-59-1300 JP-A-9-99501

First, the conventional folder F as shown in FIG. 36 has the following problem.
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 in which the object 4 can be stored separately. is not. Therefore, for example, an A4 size document and a different kind of stored object such as a slip, a business card, a photograph, a flexible disk, or the like cannot be separately stored in one folder F.

Even if A4-size documents and the above-mentioned different kinds of storage items are stored between the plastic sheets 1 and 1a, only the different kinds of storage items may fall out when the folder F is carried or when the documents are taken in and out. High. Further, 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.

Further, since the conventional folder F has two sides 3 adjacent to each other, even if the documents are the same size, glossy and slightly thick objects such as a product catalog or a pamphlet are stored. Even when the folder F is moved, it is easy to move, and it is highly possible that the folder F falls out when being 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 produce 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 the generation of static electricity. (So-called blocking phenomenon occurs). Therefore, the opening property (opening) when the folder F was used was poor, and it was not easy to take in and out the documents.

(Object of the invention)
Therefore, an object of the present invention is 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 folder.

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 that occurs when a plastic sheet is manufactured by an inflation method, to make it easier to open a folder, and to easily put in and out an object to be stored, and to manufacture the folder. It is to provide a method.

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

In the second invention,
It has a pair of front and back folder forming pieces composed of a plastic sheet, a closed portion in which two adjacent sides of the folder forming piece are closed, and an open portion in which two sides facing the closed portion are open. It is a folder in which the opening portion is opened to store an object to be stored,
A pocket portion is provided on one or both outer surfaces of the folder forming piece by a pocket forming piece provided along one of the two sides forming the closing portion. Characterized by
It is a folder.

In the third invention,
It is characterized by having a band which holds a required portion of the stored object stored in the pocket portion and prevents the stored object from dropping off.
It is a folder according to the first or second invention.

In the fourth invention,
A bent piece that 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,
On the end side of the closed portion adjacent to the bent piece, there is provided an open portion for facilitating the bent piece to be sandwiched between the folder forming pieces, and the length of the open portion is equal to the length of the bent portion. Characterized in that it is set shorter than the length of the piece in the protruding direction,
It is a folder according to the first, second or third invention.

In the fifth invention,
It has a pair of front and back folder forming pieces composed of a plastic sheet, a closed portion in which two adjacent sides of the folder forming piece are closed, and an open portion in which two sides facing the closed portion are open. It is a folder in which the opening portion is opened to store an object to be stored,
A bent piece that 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,
On the end side of the closed portion adjacent to the bent piece, there is provided an open portion for facilitating the bent piece to be sandwiched between the folder forming pieces, and the length of the open portion is equal to the length of the bent portion. Characterized in that it is set shorter than the length of the piece in the protruding direction,
It is a folder.

In the sixth invention,
In any one of the open portions, a part close to the closed portion is characterized by being joined into a bag shape,
It is a folder according to the first, second, third, fourth or fifth invention.

In the seventh invention,
The plastic sheet is characterized by using a sheet formed by cutting off a plastic tube obtained by an inflation method,
This is a folder according to the first, second, third, fourth, fifth or sixth invention.

In the eighth invention,
It has a pair of front and back folder forming pieces composed of a plastic sheet, a closed portion in which two adjacent sides of the folder forming piece are closed, and an open portion in which two sides facing the closed portion are open. It is a folder in which the opening portion is opened to store an object to be stored,
The plastic sheet is characterized by using a sheet formed by cutting a plastic tube obtained by an inflation method,
It is a folder.

In the ninth invention,
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),
It is a folder according to the first or second invention.

In the tenth invention,
In order to form a pair of front and back folder forming pieces, pocket forming pieces and one closed portion, one end in the width direction of the plastic sheet unwound from the roll body is folded back, and the width direction of another plastic sheet unwound from the roll body is changed. Step of sandwiching one end side,
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;
After the joining or the fusing, cutting the plastic sheet at a predetermined position in the width direction,
Characterized by including
This is a method of manufacturing a folder.

In the eleventh invention,
A step of folding 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,
Superimposing another plastic sheet having a smaller width than the folded plastic sheet on the outer surface of the folded plastic sheet along the fold to form a pocket forming piece;
Joining the folded side end of the plastic sheet and one end in the width direction of the another plastic sheet in the longitudinal 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 pocket portion;
After the joining or the fusing, cutting the plastic sheet at a predetermined position in the width direction,
Characterized by including
This is a method of manufacturing a folder.

In the twelfth invention,
Superimposing the plastic sheets unreeled from the roll body to form a pair of front and back folder forming pieces,
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 the wide plastic sheet and one end in the width direction of another narrow plastic sheet in the longitudinal direction to form one closed portion,
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 pocket portion;
After the joining or the fusing, cutting the plastic sheet at a predetermined position in the width direction,
Characterized by including
This is a method of manufacturing a folder.

In the thirteenth invention,
Superimposing the plastic sheets unreeled from the roll body to form a pair of front and back folder forming pieces,
A step of folding another plastic sheet narrower than the plastic sheet at a required position in the width direction so as to form one closed portion and a pair of pocket forming pieces, and sandwiching one end of the plastic sheet in the width direction; ,
Joining or fusing the respective 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;
After the joining or the fusing, cutting the plastic sheet at a predetermined position in the width direction,
Characterized by including
This is a method of manufacturing a folder.

In the fourteenth invention,
A step of folding the plastic sheet fed 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,
A step of folding another plastic sheet narrower than the plastic sheet at a required position in the width direction to sandwich a bent side of the plastic sheet to form a pair of pocket forming pieces;
Joining or fusing the respective 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;
After the joining or the fusing, cutting the plastic sheet at a predetermined position in the width direction,
Characterized by including
This is a method of manufacturing a folder.

In the fifteenth invention,
A step of folding the plastic sheet fed from the roll body at the center in the width direction to form a pair of folder forming pieces and one closed part,
Superimposing another plastic sheet narrower than the folded plastic sheet on each of the outer surfaces of the folded plastic sheet along the fold to form a pair of pocket forming pieces,
A step of longitudinally joining the fold side end of the folded plastic sheet and one end in the width direction of the narrow plastic sheet,
Joining or fusing the respective 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;
After the joining or the fusing, cutting the plastic sheet at a predetermined position in the width direction,
Characterized by including
This is a method of manufacturing a folder.

In the sixteenth invention,
Superimposing the plastic sheets unreeled from the roll body to form a pair of front and back folder forming pieces,
Superimposing another plastic sheet having a width smaller 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; ,
Joining one end in the width direction of the plastic sheet in the longitudinal direction to form one closed portion,
Joining or fusing the plastic sheet in the width direction at predetermined intervals in the longitudinal direction to form the other closed portion and the pair of pocket portions;
After the joining or the fusing, cutting the plastic sheet at a predetermined position in the width direction,
Characterized by including
This is a method of manufacturing a folder.

In the seventeenth invention,
In order to make the pocket portion into a bag shape, a plastic sheet forming one or both pocket forming pieces and a plastic sheet forming a folder forming piece provided on the outer surface with the plastic sheet are separated by a predetermined distance in the longitudinal direction. At the step of joining in the width direction,
Characterized by including
A method of manufacturing a folder according to any of the tenth to sixteenth aspects.

In the eighteenth invention,
In order to form a band for holding a required portion of the stored object stored in the pocket portion and preventing the stored object from dropping, the pocket forming piece is formed on the outer surface of the plastic sheet forming the folder forming piece. A step of joining another plastic sheet of a required width fed from the roll body in the longitudinal direction to a place other than the place where the plastic sheet forming
Characterized by including
A method of manufacturing a folder according to any one of the tenth to seventeenth aspects.

In the nineteenth invention,
Superimposing plastic sheets forming a pair of folder forming pieces with a required width in the width direction to form a bent piece that can be bent inward and sandwiched between the folder forming pieces,
Cutting out a required portion of the plastic sheet so as to form an opening for facilitating the bending piece to be sandwiched between the folder forming pieces with a length shorter than a length of the bending piece in a protruding direction. ,
Characterized by including
A method of manufacturing a folder according to any one of the tenth to eighteenth aspects.

In the twentieth invention,
In order to form a pair of folder forming pieces, one closed part and a bent piece which can be bent inward and sandwiched between the folder forming pieces, the plastic sheet fed out from the roll body is shifted by a required width in the width direction. Steps to superimpose in state,
Cutting out a required portion of the plastic sheet so as to form an opening for facilitating the bending piece to be sandwiched between the folder forming pieces with a length shorter than a length of the bending piece in a protruding direction. ,
Joining or fusing the plastic sheet in the width direction at predetermined intervals in the longitudinal direction to form the other closed portion;
After the joining or the fusing, cutting the plastic sheet at a predetermined position in the width direction,
Characterized by including
This is a method of manufacturing a folder.

In the twenty-first invention,
A step of joining a required portion of the plastic sheet to join a part close to the closed portion in one of the open portions to form a bag shape,
Characterized by including
A folder manufacturing method according to any one of the tenth to twentieth inventions.

In the twenty-second invention,
The plastic tube obtained by the inflation method is cut into sheets and used as a plastic sheet as a material of a folder,
A folder manufacturing method according to any of the tenth to twenty-first aspects.

In the twenty-third invention,
It has a pair of front and back folder forming pieces composed of a plastic sheet, a closed portion in which two adjacent sides of the folder forming piece are closed, and an open portion in which two sides facing the closed portion are open. A method for manufacturing a folder, wherein the folder is opened to store an object to be stored,
The plastic tube obtained by the inflation method is cut into sheets and used as a plastic sheet as a material of a folder,
This is a method of manufacturing a folder.

In the twenty-fourth invention,
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),
A method of manufacturing a folder according to the twenty-second or twenty-third invention.

「" Plastic sheet "as used in the present invention has a broad concept including a plastic film.

接合 As a method of joining (sealing) the plastic sheets, for example, heat sealing (thermal welding), impulse sealing, high-frequency joining, ultrasonic joining and the like are mentioned, but it is not particularly limited to these.

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 in which a pocket portion is provided on one or both of the outer surfaces of the folder forming pieces, for example, a slip or a business card, or a photograph or a flexible disk, in addition to the items stored between the folder forming pieces. Different kinds of objects can be stored in the pocket.

(4) 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, after storing an object between the folder forming pieces, the bending piece is bent and sandwiched between the folder forming pieces. The one end of the object to be stored can be held down by the bent piece.
In addition, since the open portion is provided on the end side of the closed portion adjacent to the bent piece, it is easy to sandwich the bent piece between the folder forming pieces.
Further, 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 cannot be easily removed.

In one of the open portions, a part close to the closed portion is joined and formed into a bag-shaped folder. One end of the stored item is not held in the bag-shaped portion, so the stored item is Does not fall off easily.

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 for manufacturing the same, a flat (sheet-like) plastic tube from which air inside is completely expelled is directly used. Unlike the conventional manufacturing method used, it is possible to prevent a blocking phenomenon in which the plastic sheets closely adhere to each other. Therefore, it is possible to easily open the pair of front and back plastic sheets constituting the folder, thereby facilitating the taking in and out of the storage object.

In a configuration in which the inner surface of the plastic tube is the mating surface of the pair of front and back folder forming pieces, the pair of folder forming pieces formed of the plastic sheet formed by separating the plastic tube may warp outward. Rather, since it has a property that it is easily curled inside, the stored objects such as the stored documents 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.

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, it is possible to separately store objects between the folder forming pieces and the pocket portion. it can.

(B) 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, the required portion of the object is held by the band, The stored items can be prevented from falling off.

(C) In 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, bending the bent piece to form a folder forming piece. By sandwiching between the folder forming pieces, it is possible to prevent the stored articles stored between the folder forming pieces from falling off by sandwiching them between them and pressing one end of the stored articles with the bent pieces.
In addition, the length of the opening that allows the bent piece to be easily sandwiched between the folder forming pieces is set shorter than the length of the bent piece in the protruding 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 a folder in which a part of one of the opening portions close to the closing portion is joined to form a bag, unlike a folder in which all the opening portions are open, the folder is covered with a bag-like portion. Since the stored items are hooked, the stored items can be prevented from falling out.

(E) A folder in which a plastic tube obtained by cutting off a plastic tube obtained by an inflation method is used as a plastic sheet and the method of manufacturing the folder uses a flat plastic tube from which air inside is completely expelled. Unlike the conventional manufacturing method, it is possible to prevent a blocking phenomenon in which the plastic sheets are closely adhered to each other. Therefore, it is possible to easily open the pair of front and back plastic sheets constituting the folder, thereby facilitating the taking in and out of the storage object.

(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, the pair of folder forming pieces formed of a plastic sheet formed by cutting off the plastic tube is placed on the outer side. It has a property that it is slightly curled inward rather than warped, so that the stored objects such as the stored documents are securely held and hardly fall off.

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

The present invention will be described in more detail based on the embodiments shown in the drawings.
[Embodiment 1]
FIG. 1 is a front view explanatory diagram showing a first embodiment of a folder according to the present invention,
FIG. 2 is an explanatory view showing an II end face of FIG. 1,
FIG. 3 is an explanatory diagram of the 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. Adjacent two sides of the folder forming pieces 11 and 12 are closed to form closed portions 18 and 18a. 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 short side closed portion 18a. In FIG. 1, both right and left ends 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 storage object P1. However, the notch 15 may not be provided in the folder forming piece 11. This is the same for a folder according to an embodiment described later.

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

With the above-described configuration, the folder F1 stores a relatively small object P2 such as a voucher, a business card, or a photograph or a flexible disk separately from the object P1 housed between the folder forming pieces 11 and 12. It can be stored separately in the section 14.

Thus, unlike the conventional folder F (see FIG. 36) in which the folder F1 is simply sandwiched and stored between two plastic sheets, when carrying the folder F1 or taking out or putting in documents, a small-sized such as a business card is used. The stored object P2 can be prevented from falling off from the opening portion 19.
Also, since the small storage object P2 can be stored in the pocket portion 14 separately from the large or long document, unlike the conventional folder F, the small storage object P2 can be immediately taken out.

In addition, a folder forming piece (not shown) for partitioning may be provided between the folder forming pieces 11 and 12 to form a multilayer, and a small piece for a heading is provided on the opening 19 side so as to protrude from the edge. You can also. This is the same for folders according to other embodiments described later.

(Method of manufacturing plastic sheet S to be used as material of folder F1)
FIG. 4 is a schematic explanatory view showing a manufacturing process of a plastic sheet as a material of a 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 (for example, an air ring and a water ring), guide plates 24 and 24, take-up rolls 25 and 25, a take-up roll group 26, and the like. I have. Since the inflation molding machine A is a well-known technique, detailed description of each component is omitted.

(4) The plastic tube T extruded from the die 22 attached to the extruder 21 is gradually blown up to a predetermined width by air being 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, the plastic tube T is superposed in a flat shape (sheet shape) by being taken up by the take-up roll group 26 and the like.

(4) The plastic tubes T superimposed 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 up by winding rolls 28, 28.

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

(4) As described above, the plastic tube T manufactured by the inflation method is completely cut into two plastic sheets S, S to be a folder material. Therefore, unlike the conventional manufacturing method in which a flat (sheet-shaped) plastic tube in which air inside is completely displaced 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.

Furthermore, 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 the present embodiment, a plastic sheet formed by an inflation method is used, but a plastic sheet manufactured by a T-die method may be used.

Further, in the present embodiment, two plastic sheets S, S are manufactured by making a cut in two places of the plastic tube T. However, by making a cut in one direction of the plastic tube T and expanding it. 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 for manufacturing a folder according to the first embodiment.
A method for manufacturing the folder F1 will be described with reference to FIGS. The method of manufacturing the folder F1 described below is one example, and the present invention is not particularly 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. 5 is wider than the other plastic sheet S1. A part of the wide plastic sheet S2 constitutes the pocket forming piece 13 of the folder F1.

In the manufacturing process of the folder shown in FIG. 5, each component (for example, the folder forming pieces 11, 12, the pocket forming piece 13, the closing portion 18a, etc.) after completion of the folder F1 by the plastic sheets S1, S2, S3. For the sake of convenience of description, the plastic sheets S1, S2, and S3 are given the same reference numerals as those of the components of the folder F1.
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 apparatus for manufacturing the folder F1 includes a bending apparatus B, a primary heat sealing apparatus C, a punching apparatus D, a secondary heat sealing apparatus E, and a cutting apparatus G. The plastic sheets S1 and S2 are processed by each device while being sent at a predetermined speed.

Bending device B has a disc-shaped pressing body 31 provided rotatably. One end in the width direction of the wide plastic sheet S2 is folded back by the pressing body 31 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, the 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 at locations other than required. The welding prevention plate 33 is disposed between the folder forming pieces 11 and 12.

Then, by pushing down the welding head 32 at a predetermined interval (a predetermined time interval) with respect to the sent plastic sheets S1 and S2, the pocket forming piece 13 and one of the folder forming pieces 11 are moved in a predetermined direction in the longitudinal direction. At the intervals, they are joined in the width direction. Thereby, the closing part 16 is formed.

{Circle around (2)} 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. As a result, the open portion 19 of the completed folder F1 (see FIG. 3) opens to the closed portion 18a on the short side.

プ ラ ス チ ッ ク The plastic sheets S1 and S2 on which the closed 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 notch 15 is formed by pressing down the punching die 34 at predetermined intervals (predetermined time intervals) with respect to the sent plastic sheets S1 and S2.

抜 き Further, 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. As a result, 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. (3) In the next heat sealing device 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 has a narrow welding head 36 that moves up and down by an air cylinder (not shown).

The welding head 36 is pushed 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 fixed in the longitudinal direction. At the interval of, it joins in the width direction. Thereby, the closing part 18 and the pocket part 14 on the long side are configured.

プ ラ ス チ ッ ク 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 portion between the closing portion 16 and the closing portion 18 on the long side is cut by the cutting blade 37 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 punched out at required positions in the manufacturing process shown in FIG. What is necessary is just to provide the punching processing apparatus which forms the part 10. This is the same for the first to eighth embodiments described later.

As described above, as the plastic sheets S1 and S2, which are the materials of the folder F1, the plastic tube T manufactured by the inflation method is completely cut into two plastic sheets S and S. Therefore, unlike the conventional manufacturing method in which a flat (sheet-shaped) plastic tube in which the air inside is completely displaced 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.

Furthermore, in the inflation method, plastic sheets S1 and S2 can be mass-produced at lower cost than the T-die method. Therefore, as a result, the production cost of the folder can be reduced.

The order in which the devices other than the bending device B and the cutting device G are arranged is not particularly limited to the example illustrated in FIG. 5 and 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.

Furthermore, by welding the pocket forming piece 13 and one of the folder forming pieces 11 at required positions 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. The same applies to a folder having a pocket portion 14 described later.

As the plastic sheet used as the material for the folder, use a non-colored (transparent or translucent) plastic sheet, or a sheet in which the entire sheet or only a part of the sheet is colored to the required color (pattern), etc. Can be.
In addition, the plastic sheet used as the material of the folder F1 may be used by appropriately combining a non-colored sheet and a colored sheet, or a sheet colored in different colors.
Furthermore, a plastic sheet on which various printing patterns such as characters, pictures, marks, and the like have been 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.

(Other manufacturing method of folder F1)
FIG. 6 is a schematic explanatory view showing a part of another manufacturing process of the folder according to the first embodiment.
Another manufacturing method of the folder F1 will be described with reference to FIGS.
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.

(2) In manufacturing 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 of the width of the other plastic sheet S4. This narrow plastic sheet S3 forms the pocket forming piece 13 of the folder F1.

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

Next, the pocket forming piece 13 is formed by superposing the narrow plastic sheet S3 on the outer surface of one of the folder forming pieces 11 along the fold line (closed portion 18a on the short side).

Then, 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 (closed portion 18a on the short side) side and the width of the pocket forming piece 13 are formed. One end in the direction is joined in the longitudinal direction.
This closes the lower end of the pocket forming piece 13 in FIG.
Subsequent manufacturing steps are the same as those 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 is the same for the manufacturing method shown in FIGS.

This manufacturing method can also be adopted for each folder having a pocket portion described later.

(Further manufacturing method of 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.

In manufacturing the folder F1, three plastic sheets S21, S22 and S23 wound up in a roll shape are used. In FIG. 7, the two lower plastic sheets S22 and S23 have the same width. The width of the plastic sheet S21 disposed above is about one-fourth of the width of the plastic sheets S22 and S23. The narrow plastic sheet S21 forms the pocket forming piece 13 of the folder F1.

{Circle around (1)} First, two wide plastic sheets S22 and S23 are stacked to form a pair of folder forming pieces 11 and 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 to form the pocket forming piece 13.

Next, the welding head 30 of the primary heat sealing device N is continuously pressed down on the sent plastic sheets S21, S22, S23, so that one end in the width direction of one of the folder forming pieces 11 and the pocket forming piece are formed. One end in the width direction of 12, 13 is joined in the longitudinal direction. Thereby, the closed portion 18a on the short side is formed.
Subsequent manufacturing steps are the same as those described with reference to FIG.

[Embodiment 2]
FIG. 8 is a diagram illustrating the use state of the folder according to the second embodiment of the present invention.
Note that the same or equivalent parts as those of the folder F1 according to the first embodiment described above are denoted by the same reference numerals, and description of such parts 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.

[Embodiment 3]
FIG. 9 is a front view explanatory view showing a third embodiment of the folder according to 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 the use state of the folder shown in FIG.
The folder F3 is obtained by providing a band 41 having a required width in the folder F1 (see FIG. 3) shown in the first embodiment. The band 41 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, when the storage object P3 stored in the pocket portion 14 is large or long, the upper side of the storage object P3 is held by the band 41 so that the storage object P3 can be dropped. Can be prevented.
The band 41 can be provided in folders F4, F6, and F8, which will be described later, and include 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.
A method for manufacturing the folder F3 will be described with reference to FIGS.

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

The band body sealing device H has a narrow welding head 32a that moves up and down by an air cylinder (not shown), and a metal welding prevention plate 33a that prevents welding other than where necessary. The welding prevention plate 33a is disposed between folder forming pieces 11 and 12 described later.

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

{Circle around (1)} The folding device B first forms the closed portion 18a on the short side, the pocket forming piece 13, and the folder forming pieces 11 and 12. Next, the closing portion 16 is provided by the primary heat sealing device C.

と 共 に At the same time, the narrow plastic sheet S5 is superposed in the longitudinal direction on a place other than the pocket forming piece 13 (in the present embodiment, on the side of the band sealing device H of the folder forming piece 11). 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. 11 is formed.

{Circle around (4)} Since the welding head 32a hits the welding prevention plate 33a with the band 41 and the folder forming piece 11 interposed therebetween, 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 obstructed.

After that, the notch 15 is provided by the punching device D, and the long-side closed portion 18 provided at the left end in FIG. 11 is formed by the secondary heat sealing device E. At this time, the 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.

[Embodiment 4]
FIG. 13 is a front view explanatory view showing a fourth embodiment of the folder according to the present invention,
FIG. 14 is an explanatory view showing the III-III end face of FIG.
FIG. 15 is an explanatory diagram of the 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 near the closing portion 18a on the short side is closed by the width of the pocket forming piece 13 to form a closing portion 51. . Thus, as shown in FIG. 15, the lower side of the folder F4 has a bag shape. Therefore, it is possible to prevent the storage object P1 stored between the folder forming pieces 11 and 12 from falling off from the opening portion 19 side.

In addition, in FIG. 13, a notch portion 52 is provided on the upper side of the closing portion 51, which is cut in an arc shape slightly inward. 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.
A method for manufacturing the folder F4 will be described with reference to FIGS.
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.

In manufacturing the folder F4, two plastic sheets S8 and S9 wound in a roll shape are used.
First, the folding device B forms the closing portion 18a on the short side, the pocket forming piece 13, and the folder forming pieces 11 and 12. Then, the plastic sheets S8 and S9 are sent to the primary heat sealing device I.

The primary heat sealing device I has a pair of welding heads 38, 38 which are moved up and down by an air cylinder (not shown), and the welding heads 38, 38 are positioned so as to sandwich the plastic sheets S8, S9 from above and below. Are located in This primary heat sealing device I is not provided with a welding prevention plate. Then, with the primary heat sealing device I, the folder forming pieces 11 and 12 and the pocket forming piece 13 are welded to form the closed portion 51.

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 closing portion 18 is closed. It is formed.

Thereafter, the plastic sheets S8 and S9 are sent to the punching apparatus J. The punching apparatus J has a punching die 39 having an elongated cutting blade that moves up and down by an air cylinder (not shown).

(4) 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 cutout portion 52 provided at the right end of the folder F4 is formed. After the notch 52 is formed, the cutting device G cuts between the closing portion 16 and the long-side closing portion 18 to obtain a target folder F4.

[Embodiment 5]
FIG. 17 is a diagram illustrating the use state of the folder according to the fifth embodiment of the present invention.
The folder F5 is different from the folder F4 (see FIG. 15) according to the fourth embodiment in that no pocket portion is provided below the folder F5 in FIG.
The method of manufacturing the folder F5 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. This is the same as FIG.

In the folder F5, the closing portion 18 is located on the long side (left end) of the folder F5 in FIG. 17, but may be formed on the short side (lower end) of the folder F5. .

Embodiment 6
FIG. 18 is an explanatory front view showing a sixth embodiment of the folder according to the present invention,
FIG. 19 is an explanatory view showing a VV end face of FIG. 18,
FIG. 20 is an explanatory diagram of the 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 the pocket portions 14 and 14a.

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

(3) In manufacturing the folder F6, three plastic sheets S10, S11, and S12 wound in a roll shape are used. In FIG. 21, the upper two plastic sheets S10 and S11 have the same width. Further, the width of the plastic sheet S12 disposed below is about one half of that of the plastic sheets S10 and S11. A pair of front and back pocket forming pieces 13 and 13a is formed of the narrow plastic sheet S12.

First, two wide plastic sheets S10 and S11 are overlapped to form a pair of folder forming pieces 11 and 12.
Next, the narrow plastic sheet S12 is folded back at the center in the width direction by the folding device B, and one end of the pair of folder forming pieces 11 and 12 in the width direction is sandwiched. 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, S11, S12 are sent to the primary heat sealing device K. The primary heat sealing device K has a pair of welding heads 71, 71a that move up and down by an air cylinder (not shown). The welding heads 71, 71a sandwich the plastic sheets S10, S11, S12 from above and below. It is arranged in a suitable position.

(4) The heat sealing device K has a metal welding prevention plate 33 for preventing welding at locations other than the required locations. The welding prevention plate 33 is disposed between the folder forming pieces 11 and 12.

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 to form a pair of pocket forming pieces 13, 13a and a pair of folders. The pieces 11 and 12 are joined in the width direction at predetermined intervals in the longitudinal direction. Thereby, the closing parts 16 and 16a are formed.

Further, the welding head 71 hits the welding prevention plate 33 with the folder forming piece 11 and the pocket forming piece 13 interposed therebetween, and the welding head 71a works with the folder forming piece 12 and the pocket forming piece 13a interposed therebetween. Since it hits the welding prevention plate 33, the folder forming pieces 11 and 12 located at the positions sandwiching the welding prevention plate 33 are not welded to each other. As a result, the open portion 19 of the completed folder F6 (see FIG. 20) opens to the closed portion 18a on the short side.
Subsequent manufacturing steps are the same as those described with reference to FIG.

In FIG. 20, both the right end portions of the pocket forming pieces 13 and 13a can be opened without welding, or can be opened without welding only one of the pocket forming sides.

帯 In addition, similarly to the folder F3 according to the third embodiment (see FIG. 9), the band 41 can be provided outside and above the folder forming piece 11. 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, 13a on the front and back are welded together with the folder forming pieces 11, 12, and the folder F6 is formed. Can be made into a bag shape on the lower side.

(Other manufacturing method of folder F6)
FIG. 22 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.
In the manufacturing method shown in FIG. 22, two plastic sheets S13 and S14 wound in a roll shape are used for manufacturing the folder F6. The width of one plastic sheet S14 is about １ of the width of the wide plastic sheet S13.

First, the wide plastic sheet S13 is folded at the center in the width direction by the folding device B2 to form a pair of folder forming pieces 11, 12 and a closed portion 18a on the short side.
Next, the narrow plastic sheet S14 is folded back at the center in the width direction, and the folded sides of the pair of folder forming pieces 11 and 12 are sandwiched. Thereby, a pair of front and back pocket forming pieces 13 and 13a is formed at the folded portion.
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 manufacturing method of the folder F6 will be described.
In the manufacturing method shown in FIG. 23, three plastic sheets S15, S16, and S17 wound in a roll are used for manufacturing the folder F6. Among them, the two plastic sheets S15 and S17 arranged at the upper and lower sides in FIG. 22 have the same width. The width of the plastic sheet S16 is about eight times the width of the plastic sheets S15 and S17.

First, the wide plastic sheet S16 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, narrow plastic sheets S15 and S17 are superimposed on the outer surfaces of the pair of folder forming pieces 11 and 12 along the fold line (short side closed portion 18a), respectively, to form a pair of pocket forming pieces. 13, 13a.

Thereafter, the plastic sheets S15, 16, 17 are sent to the primary heat sealing device N. Then, the welding head 30 is continuously pressed down, so that the fold (short side closing portion 18a) side end of the pair of folder forming pieces 11 and 12 and one end in the width direction of the pair of pocket forming pieces 13 and 13a. Are joined in the longitudinal direction. This closes the lower end of the pocket forming piece 13 in FIG.

Note that another welding head (not shown) can be provided on the back side (the side facing the welding head 30) of the plastic sheets S15, 16, 17. The same applies to other manufacturing steps (FIG. 24) of the folder F6 described later.
The subsequent manufacturing process is the same as the process described with reference to FIG.

(Another manufacturing method of the folder F6)
FIG. 24 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 24, still another method of manufacturing the folder F6 will be described.
In the manufacturing method shown in FIG. 24, four plastic sheets S24, S25, S26, and S27 wound in a roll shape are used for manufacturing the folder F6. Among them, the two plastic sheets S24 and S25 arranged at 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.

{Circle around (1)} First, the wide plastic sheets S26 and S27 are overlapped to form a pair of folder forming pieces 11 and 12. At the same time, narrow plastic sheets S24 and S25 are superimposed on the outer surfaces of the pair of folder forming pieces 11 and 12 along one end in the width direction, respectively, so that the pair of pocket forming pieces 13 and 13a are formed. Constitute.

Thereafter, the plastic sheets S24, S25, S26, 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.

Embodiment 7
FIG. 25 is a front view explanatory view showing a seventh embodiment of the folder according to the present invention,
26 is a right side view explanatory view of the folder shown in FIG. 25,
FIG. 27 is an explanatory diagram of the use state of the folder shown in FIG.
The folder F7 is different from the folder F5 (see FIG. 17) according to the fifth embodiment in that one of the folder forming pieces 12 is bent inward at the edge of the opening portion 19a side thereof and the folder forming pieces 11 and 12 are folded inward. It has a bent piece 81 that can be sandwiched between them. Also, as shown in FIG. 27, a bending line 82 is formed between the bending piece 81 and the folder forming piece 12, so that the bending piece 81 can be bent neatly.

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

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

With the above-described configuration, after the object P1 is stored between the folder forming pieces 11 and 12, the bent piece 81 is bent downward and sandwiched between the folder forming pieces 11 and 12, and 81 allows the upper end portion of the storage object P1 to be pressed down. This makes it possible to more reliably prevent the object P1 stored 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 glue the inside of the bent piece 81 and the outside of the folder forming piece 11 to each other. Of course, even if it is not glue, it can be sealed with a sealing device such as a tape or a stapler.

Furthermore, 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.
The method of manufacturing the folder F7 will be described with reference to FIGS.
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 in a roll shape is used.
First, the plastic sheet S18 is bent in the width direction by the bending device B. At this time, the plastic sheet S18 is overlapped while being shifted by a required width in the width direction, so that a bent piece 81 is formed at one end side of the shifted plastic sheet S18 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.

At the same time, the plastic sheet S18 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 pressed down at a predetermined interval (a predetermined time interval) with respect to the sent plastic sheet S <b> 18, so that the plastic sheet S <b> 18 moves from the bent piece 81 to a required position over 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.

Embodiment 8
FIG. 29 is an explanatory front view showing the eighth embodiment of the folder according to the present invention,
FIG. 30 is an explanatory diagram showing a VI-VI end face of FIG.
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 for manufacturing the folder F8 will be described with reference to FIGS.
As a manufacturing apparatus of the folder F8, the manufacturing apparatus of the folder F4 (see FIG. 28) according to the seventh embodiment can be used.

一方 One plastic sheet S20 arranged on the lower side in FIG. 31 is wider than the other plastic sheet S19. A part of the wide plastic sheet S19 constitutes the bent piece 81 and the 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 device L in FIG. 31) at a required width, the folded 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 may be left open without welding, or pockets may be provided on both the front and back of the folder F8. Further, the band 41 can 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 diagram showing the use state of the folder according to the ninth embodiment of the present invention.
In the folder F9, unlike the folder F1 (see FIG. 1) according to the first embodiment, a corner 10a formed by cutting out in an arc shape is also formed at the lower end of the closing portion 16.

(Manufacturing method of plastic sheet S used as material of folder F9)
As already described with reference to FIG. 4, the plastic sheet S is manufactured by cutting a tubular plastic tube T manufactured by an inflation method into two pieces. For this reason, the plastic sheets S, S are slightly curved in the direction of one of the front surface and the back surface, or have the property of being easily curved (curled). 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 on 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 or the back of the plastic sheet S, or on both the front and the back, depending on the target folder.

In FIG. 33, reference numeral 61 denotes a feed roller, reference numeral 62 denotes a transfer roller, reference numeral 63 denotes a gravure printing machine, reference numeral 64 denotes a drying device, and reference numeral 65 denotes a take-up roller.

The roll-shaped plastic sheet S is sent to the gravure printing machine 63 by the feed roller 61 and the transfer roller 62, and a picture or the like is printed.
In addition, the gravure printing machine 63 applies a varnish, which is a pattern protection layer, to the surface of the printing surface together with the printing of the 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 described later, the printing surface is hardly damaged. In addition, even when the printing surface is manufactured so that the printing surface appears on the surface of the folder F9 after the product, the printing surface is protected by the varnish, so that printing is not easily peeled when the folder F9 is used. The application of varnish is also used for cosmetics of the 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.

(4) 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 by the winding roller 65.

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

(Method of manufacturing folder F9 using plastic sheet S)
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.

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 curling removing apparatuses Q1 and Q2, the folded line processing apparatus R, and the ultrasonic processing apparatus are used. V and the fusing device Y are provided.

In manufacturing the folder F9, two plastic sheets S1 and S2 wound in a roll shape are used. One plastic sheet S2 arranged on the lower side in FIG. 34 is wider than the other plastic sheet S1. A part 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 device of the folder F9 includes the curling removing devices Q1 and Q2, the folding line processing device R, the folding device U, the ultrasonic processing device V, the heat sealing device C, the punching devices W1 and W2, the sheet pressing device X, and the punching process. It has a device D and a fusing device Y. The plastic sheet S is processed by each device while being sent at a predetermined speed.

The curling removal devices Q1 and Q2 have a pair of rollers 31a and 31a (also referred to as a heating roller and an iron roller) that sandwich the plastic sheets S1 and S2 from above and below, respectively. 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 folded line processing apparatus R includes a disc-shaped pressing body 91 whose peripheral edge is slightly sharpened. The pressing body 91 presses the plastic sheet S2 while rotating, and provides a folded line 121 constituting the closing portion 18a shown in FIG. As a result, the plastic sheet S2 is easily turned back, and the closing 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 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 and S2 are sent to the heat sealing device C and the punching device W1.
The heat sealing device C forms a closed portion 16 at the right end of the pocket forming piece 13 shown in FIG.
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). Then, the punches 92 are pressed down at predetermined intervals (predetermined time intervals) with respect to the sent plastic sheets S1 and S2, so that the corners 10 are formed.

Thereafter, the plastic sheets S1 and S2 are sent to the sheet pressing device X. The sheet pressing device X includes a pressing portion (reference numeral 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, irregularities (undulations) generated in the heat sealing device C are extended and removed.

The plastic sheets S1 and S2 processed by the sheet pressing device X are sent to the punching device D and the 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. A corner 10a is formed at the lower end of the closing portion 16 in FIG. 32 by the punching die 92 of the punching apparatus W2.

Next, the plastic sheets S1 and S2 are 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 that moves up and down by an air cylinder (not shown). The cutting blade 93 and the fusing head 94 are provided adjacent to each other, and the cutting blade 93 is provided in front of the fusing head 94 (on the side of the plastic sheets S1 and S2 wound into a roll).

FIG. 35A shows a state in which 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) shows a state in which the cutting blade 93 has cut the edges (right ends) of the plastic sheets S1 and S2.

As shown in FIG. 35 (a), first, the fusing head 94 is pushed down, whereby the plastic sheets S1 and S2 are blown off, 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 cut off in FIG. On the other hand, a welded portion 111 that is unnecessary for manufacturing the folder F9 is formed on the right edge of the plastic sheets S1 and S2.

Subsequently, the cutting blade 93 is pushed down a little after the welding. The unnecessary welding portion 111 is cut off by the cutting blade 93, and the opening 19 is formed in the plastic sheets S1 and S2.
As described above, the folder F9 can be rapidly manufactured through a series of steps of fusing and cutting.

As described above, the plastic sheets S1 and S2, which are the material of the folder F9, are formed by cutting the plastic tube T manufactured by the inflation method into two pieces. For this reason, the plastic sheets S1 and S2 have the property of being slightly curved in one of the front surface and the rear surface, or of being easily curved.

Therefore, the plastic tube T is arranged such 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 forming piece 11 and the folder forming piece 12 of the folder F9 shown in FIG. 32 do not warp outward but have a property that they are slightly curled inward. Therefore, the stored documents are securely held, and are hardly dropped.
This is the same for the other embodiments already described.

Note that the folder manufacturing apparatus of each embodiment described above is not limited to the above-described folder manufacturing apparatus, and can be configured by appropriately combining the above-described folder manufacturing apparatuses.

用語 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 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.

FIG. 1 is an explanatory front view showing a folder according to a first embodiment of the present invention. Explanatory drawing which shows the II end surface of FIG. FIG. 2 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 used as a material of a folder. FIG. 3 is a schematic explanatory view showing a method for manufacturing 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. 7 is a schematic explanatory view showing a part of another manufacturing process of the folder according to the first embodiment. FIG. 11 is an explanatory view showing a use state of the folder according to the second embodiment of the present invention. The front view explanatory view showing a 3rd embodiment of a folder concerning the present invention. FIG. 10 is an explanatory view showing an II-II end face of FIG. 9. FIG. 10 is an explanatory diagram of a use state of the folder shown in FIG. 9. FIG. 14 is a schematic explanatory view showing a manufacturing process of the folder according to the third embodiment. The front view explanatory view showing a 4th embodiment of a folder concerning the present invention. FIG. 13 is an explanatory view showing a III-III end face in FIG. 13. FIG. 14 is an explanatory diagram of a use state of the folder shown in FIG. 13. Schematic explanatory view showing a folder manufacturing process according to a fourth embodiment. FIG. 14 is an explanatory view showing a use state of a folder according to a fifth embodiment of the present invention. The front view explanatory view showing a 6th embodiment of a folder concerning the present invention. Explanatory drawing which shows the VV end surface of FIG. FIG. 19 is an explanatory diagram of the use state of the folder shown in FIG. 18. FIG. 19 is a schematic explanatory view showing a manufacturing process of the folder according to the sixth embodiment. FIG. 18 is a schematic explanatory view showing a part of another manufacturing process of the folder according to the sixth embodiment. FIG. 18 is a schematic explanatory view showing a part of another manufacturing process of the folder according to the sixth embodiment. FIG. 18 is a schematic explanatory view showing a part of another manufacturing process of the folder according to the sixth embodiment. FIG. 14 is an explanatory front view illustrating a folder according to a seventh embodiment of the present invention. FIG. 26 is a right side view explanatory view of the folder shown in FIG. 25. FIG. 26 is an explanatory diagram of the use state of the folder shown in FIG. 25. FIG. 19 is a schematic explanatory view showing a manufacturing process of the folder according to the seventh embodiment. The front view explanatory view showing an 8th embodiment of a folder concerning the present invention. FIG. 30 is an explanatory view showing a VI-VI end face in FIG. 29. FIG. 19 is a schematic explanatory view showing a part of the manufacturing process of the folder according to the eighth embodiment. FIG. 21 is an explanatory view showing a use state of a folder according to a ninth embodiment of the present invention. FIG. 4 is a schematic explanatory view showing a step of printing on a plastic sheet as a material of a folder. FIG. 35 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. Explanatory drawing which shows the folder separation process which is the final stage of a folder manufacturing process. FIG. 4 is an explanatory diagram of a usage state of a conventional folder.

Explanation of reference numerals

11, 12 Folder forming piece 10, 10a Corner 13 Pocket forming piece 14, 14a Pocket 15 Cutout 16 Closed part 18, 18a Closed part 19, 19a Opened part
21 extruder 22 die 23 cooling ring 24 guide plate
25 take-up roll 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 prevention plate 30, punching prevention plates 30, 36, 38 welding head 37 cutting blade 39 punching die 41 band 42 welding Part 51 closing part 52 cutout part 61 feed roller 62 transfer roller 63 gravure printing machine 64 drying device 65 take-up roller 71 welding head 72 pressing body 73 punching die 81 bent piece 81a bent piece tip 82 bent line 83 open part 83a Notch base 91 Pressing body 92 Die 93 Cutting blade 94 Fusing head 111 Welding part 121 Folding line F1-F8 Folder A Inflation molding machine B, B2 Bending device C, I, J, K, N Primary heat sealing device D, M Punching equipment E Secondary heat sealing equipment G Cutting equipment H Strip body Le device L fold line forming device Q1, Q2 winding habit remover R folding beam machining apparatus U folding device V ultrasonic processing apparatus W1, W2 stamping device X sheet pressing device D punching device Y fusing device
P, P1, P3 Document S, S1 to S20 Plastic sheet T, T1, T1 Plastic tube

Claims (24)

A closed portion (18, 18a) having a pair of front and back folder forming pieces (11, 12) formed of a plastic sheet, and two adjacent sides of the folder forming pieces (11, 12) being closed, An opening (19, 19a) having two open sides facing the closing part (18, 18a) is provided, and the opening (19, 19a) is opened to store the storage object (P1). Folders (F1, F2, F3, F4, F6, F8, F9)
On one or both outer surfaces of the folder forming pieces (11, 12), a pocket portion (14, 14a) is provided,
folder. A closed portion (18, 18a) having a pair of front and back folder forming pieces (11, 12) formed of a plastic sheet, and two adjacent sides of the folder forming pieces (11, 12) being closed, An opening (19, 19a) having two open sides facing the closing part (18, 18a) is provided, and the opening (19, 19a) is opened to store the storage object (P1). Folders (F1, F2, F3, F4, F6, F8, F9)
The outer surface of one or both of the folder forming pieces (11, 12) is provided along one of the two sides constituting the closing part (18, 18a). Pocket portions (14, 14a) are provided by the pocket forming pieces (13, 13a),
folder. It is characterized by comprising a band (41) for holding a required portion of the storage object (P3) stored in the pocket portion (14, 14a) and preventing the storage object (P3) from falling off. ,
The folder according to claim 1. A bent piece (81) that can be bent inward and sandwiched between the folder forming pieces (11, 12) is provided at the edge of the opening (19a) side of one of the folder forming pieces (12). And
At the end side of the closing portion (18) adjacent to the bent piece (81), an open portion () for facilitating the folding piece (81) to be sandwiched between the folder forming pieces (11, 12). 83) is provided, the length of the open portion (83) is set shorter than the length of the bent piece (81) in the protruding direction,
The folder according to claim 1, 2 or 3. A closed portion (18, 18a) having a pair of front and back folder forming pieces (11, 12) formed of a plastic sheet, and two adjacent sides of the folder forming pieces (11, 12) being closed, An opening (19, 19a) having two open sides facing the closing part (18, 18a) is provided, and the opening (19, 19a) is opened to store the storage object (P1). Folder (F7)
A bent piece (81) that can be folded inward and sandwiched between the folder forming pieces (11, 12) is provided at an edge of the opening (19a) side of one of the folder forming pieces (12). Provided,
At the end side of the closing portion (18) adjacent to the bent piece (81), an open portion () for facilitating the folding piece (81) to be sandwiched between the folder forming pieces (11, 12). 83) is provided, the length of the open portion (83) is set shorter than the length of the bent piece (81) in the protruding direction,
folder. Of any one of the open portions (19), a portion closer to the closed portion (18a) is joined and formed into a bag shape,
The folder according to claim 1, 2, 3, 4, or 5. The plastic sheet is characterized by using a sheet formed by cutting off a plastic tube obtained by an inflation method,
The folder according to claim 1, 2, 3, 4, 5, or 6. A closed portion (18, 18a) having a pair of front and back folder forming pieces (11, 12) formed of a plastic sheet, and two adjacent sides of the folder forming pieces (11, 12) being closed, An opening (19, 19a) having two open sides facing the closing part (18, 18a) is provided, and the opening (19, 19a) is opened to store the storage object (P1). Folders (F1, F2, F3, F4, F5, F6, F7, F8, F9)
A folder, wherein the plastic sheet is formed by cutting a plastic tube obtained by an inflation method into a sheet shape. 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),
The folder according to claim 7. In order to form a pair of front and back folder forming pieces (11, 12), pocket forming pieces (13) and one closing portion (18a), one end in the width direction of the plastic sheet (S2) unwound from the roll is folded back. A step of sandwiching one end side in the width direction of another plastic sheet (S1) fed out from the roll body,
Joining or fusing the plastic sheets (S1, S2) in the width direction at predetermined intervals in the longitudinal direction to form the other closed portion (18) and the pocket portion (14), after the joining or the above After fusing, cutting the plastic sheet (S1, S2) at a predetermined position in the width direction,
Characterized by including
How to make folders. A step of folding the plastic sheet (S4) fed from the roll body at the center in the width direction to form a pair of front and back folder forming pieces (11, 12) and one closed portion (18a),
On the outer surface of the folded plastic sheet (S4), another plastic sheet (S3) narrower than the folded plastic sheet (S4) is formed along the fold to form the pocket forming piece (13). Overlapping steps,
Step of longitudinally joining the folded side end of the plastic sheet (S4) and one end in the width direction of the another plastic sheet (S3),
Bonding or fusing the plastic sheets (S3, S4) in the width direction at predetermined intervals in the longitudinal direction to form the other closed portion (18) and the pocket portion (14),
After the joining or the fusing, cutting the plastic sheet (S3, S4) at a predetermined position in the width direction,
Characterized by including
How to make folders. A step of superposing the plastic sheets (S22, S23) which are respectively unwound from the roll body to form a pair of front and back folder forming pieces (11, 12),
In order to form the pocket forming piece (13), on the outer surface of any one of the plastic sheets (S22), along one end of the plastic sheet (S22) in the width direction, the plastic sheet (S22) Step of overlapping another narrow plastic sheet (S21),
In order to form one closed portion (18a), one end in the width direction of each of the wide plastic sheets (S22, S23) and one end in the width direction of another narrow plastic sheet (S21) are longitudinally extended. Joining in the direction,
A step of joining or fusing the plastic sheets (S21, S22, S23) in the width direction at predetermined intervals in the longitudinal direction to form the other closed portion (18) and the pocket portion (14). ,
After the joining or the fusing, cutting each of the plastic sheets (S21, S22, S23) at a predetermined position in the width direction,
Characterized by including
How to make folders. A step of superposing the plastic sheets (S10, S11) which are respectively unwound from the roll body to form a pair of front and back folder forming pieces (11, 12),
In order to form one closed portion (18a) and a pair of pocket forming pieces (13, 13a), another plastic sheet (S12), which is narrower than the plastic sheet (S10, S11), at a required position in the width direction. Step of sandwiching one end of the plastic sheet (S10, S11) in the width direction,
Bonding or fusing the plastic sheets (S10, S11, S12) 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). ,
After the joining or the fusing, cutting each of the plastic sheets (S10, S11, S12) at a predetermined position in the width direction,
Characterized by including
How to make folders. A step of folding a plastic sheet (S13) fed from the roll body at the center in the width direction to form a pair of front and back folder forming pieces (11, 12) and one closed portion (18a),
In order to form a pair of pocket forming pieces (13, 13a), another plastic sheet (S14) narrower than the plastic sheet (S13) is folded at a required position in the width direction, and the plastic sheet (S13) Step of sandwiching the bent side of
Joining or fusing the plastic sheets (S13, S14) 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),
After the joining or the fusing, cutting the plastic sheets (S13, S14) at predetermined positions in the width direction,
Characterized by including
How to make folders. A step of bending a plastic sheet (S16) fed from the roll body at the center in the width direction to form a pair of folder forming pieces (11, 12) and one closing portion (18a),
In order to form a pair of pocket forming pieces (13, 13a), on each outer surface of the folded plastic sheet (S16), another plastic sheet (S15, S15, narrower than the folded plastic sheet (S16). S17) overlapping each other along the fold line,
A step of longitudinally joining one end of the folded plastic sheet (S16) on the fold side and one end in the width direction of the narrow plastic sheet (S15, S17),
Joining or fusing the plastic sheets (S15, S16, S17) 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). ,
After the joining or the fusing, cutting each of the plastic sheets (S15, S16, S17) at a predetermined position in the width direction,
Characterized by including
How to make folders. A step of superposing the plastic sheets (S26, S27) which are respectively unwound from the roll body to form a pair of front and back folder forming pieces (11, 12),
In order to form a pair of pocket forming pieces (13, 13a), the plastic sheet (S26, S27) is formed on each outer surface of the plastic sheet (S26, S27) along one end in the width direction of the plastic sheet (S26, S27). A step of superposing another plastic sheet (S24, S25) narrower than the sheet (S26, S27),
Joining one end in the width direction of the plastic sheet (S24, S25, S26, S27) in the longitudinal direction to form one closed portion (18a),
The plastic sheet (S24, S25, S26, S27) is 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 to do,
After the joining or after the fusing, cutting the plastic sheet (S24, S25, S26, S27) at a predetermined position in the width direction,
Characterized by including
How to make folders. 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 folder forming piece (11, Joining the plastic sheet forming 12) in the longitudinal direction at predetermined intervals in the longitudinal direction,
Characterized by including
A method for manufacturing a folder according to any one of claims 10 to 16. In order to form a band (41) for holding a required portion of the storage object (P3) stored in the pocket portion (14) and preventing the storage object (P3) from falling off, a folder forming piece (11) On the outer surface of the plastic sheet (S6) that forms the pocket forming piece (13), at a place other than where the plastic sheet (S7) that forms the pocket forming piece (13) is provided, another plastic sheet of the required width that is unwound from the roll body ( After overlapping S5) in the longitudinal direction, joining at a required position,
Characterized by including
A method for manufacturing a folder according to any one of claims 10 to 17. A plastic sheet forming a pair of folder forming pieces (11, 12) is required in the width direction to form a bent piece (81) that can be bent inward and sandwiched between folder forming pieces (11, 12). Superimposing in a state shifted by the width of
An opening (83) that makes it easy to sandwich the bent piece (81) between the folder forming pieces (11, 12) with a length shorter than the length of the bent piece (81) in the projecting direction. Cutting out required portions of the plastic sheet to form,
Characterized by including
A method for manufacturing a folder according to any one of claims 10 to 18. Rolls are formed to form a pair of folder forming pieces (11, 12), one closing portion (18a) and a bent piece (81) that can be bent inward and sandwiched between the folder forming pieces (11, 12). Superimposing the plastic sheet (S18) unreeled from the body with the required width shifted in the width direction;
An opening (83) that makes it easy to sandwich the bent piece (81) between the folder forming pieces (11, 12) with a length shorter than the length of the bent piece (81) in the projecting direction. Step of cutting out a required portion of the plastic sheet (S18) to form,
Joining or fusing the plastic sheet (S18) in the width direction at predetermined intervals in the longitudinal direction to form the other closed portion (18),
After the joining or the fusing, cutting the plastic sheet (S18) at a predetermined position in the width direction,
Characterized by including
How to make folders. Of any one of the open portions (19), to join a portion of the plastic sheet to join a part close to the closed portion (18a) to form a bag,
Characterized by including
A method for manufacturing a folder according to any one of claims 10 to 20. The plastic tube obtained by the inflation method is cut into sheets and used as a plastic sheet as a material of a folder,
A method for manufacturing a folder according to any one of claims 10 to 21. A closed portion (18, 18a) having a pair of front and back folder forming pieces (11, 12) formed of a plastic sheet, and two adjacent sides of the folder forming pieces (11, 12) being closed, An opening (19, 19a) having two sides open to the closing part (18, 18a) is provided, and the opening (19, 19a) is opened to store the storage object (P1). Method of manufacturing the folder (F1, F2, F3, F4, F5, F6, F7, F8, F9),
The plastic tube obtained by the inflation method is cut into sheets and used as a plastic sheet as a material of a folder,
How to make folders. 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),
The method for manufacturing a folder according to claim 22.

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