JP5602068B2 - File and manufacturing method thereof - Google Patents

Description

  The present invention relates to a file and a manufacturing method thereof, and more particularly to a file and a manufacturing method thereof that can hold a document or card between a plurality of notebook-type holding sheets.

  For example, there is an album bound by welding a back portion made of a thermoplastic resin and a binding sheet. In order to produce such an album, a large number of sheets to be bound are superposed and held. The inner side of the back portion of the cover sheet is brought close to the overlapping end surface of the binding sheets, and a heating element is inserted between the overlapping end surface of the binding sheets and the back portion of the cover sheet. Due to the heating by the heating element, the overlapping end surface of the binding sheets and the back portion of the cover are simultaneously melted. In this state, by pulling out the heating element from between the bound sheet and the back of the cover, the overlapping end surface of the bound sheet and the back of the cover are brought into contact with each other, whereby the bound sheet and the cover are welded.

  Examples of such a bookbinding method include a business card holder and a postcard organizing file in addition to the album (see Patent Document 1).

Japanese Patent No. 2523261

  However, in a file created by such a conventional bookbinding method, paper or a card may be sandwiched between a large number of sheets to be bound. Once sandwiched, it is difficult to remove when removing it.

  Therefore, a main object of the present invention is to provide a file that can be easily removed when a sheet or the like is sandwiched, and a method for producing such a file.

A file according to claim 1 of the present invention is a back cover, a cover formed continuously on one side in the width direction of the spine, and a back formed continuously on the other side in the width direction of the spine. Including a front cover, and a back cover which is a file in which a holding sheet sandwiching the object to be sandwiched is arranged side by side, and the back cover is connected to the front cover and the back cover through arc-shaped corners. The spine has a plurality of through-holes so as to be arranged from the upper end side to the lower end side in the longitudinal direction on the inner side at a certain distance from the arcuate corners connecting the front cover and the back cover. The hole edges of the plurality of through holes are arranged in a straight line in the height direction of the spine cover, and one shape retaining portion is formed on the hole edge on the front cover side of the plurality of through holes. the other shape-retaining portion is formed on the hole edge of the back cover side of the through hole, between the plurality of through-holes, an inner front cover Between the inside cover, erection connecting portion erection has been strip between the shape-retaining portion of the table shape-retaining portion of the cover side to the back cover side is formed in the intermediate region in the width direction, high formed a curved portion of constant width continuous in the direction of the curved portion is between shape retention of the shape retaining part and the back cover side of the front cover side, and the front cover side hole edge The holding sheet corresponds to the thickness of the object to be sandwiched between the hole edges on the back cover side and is constructed between the inner side of the front cover and the inner side of the back cover. The connecting portion of the holding sheet is thermally welded to the curved portion at the edge on the spine cover side at an interval, and a constant region that is continuous in the height direction in a middle region in the width direction of the file cover body. A spine portion formed with a curved portion of the width, the spine portion being an inner side and a back side of the closed cover Than the distance between the inner surfaces, constructed as towards the width of the curved portion is shortened, the curved portion, when sandwiching the the held body shape retention to be maintained planar shape When the front cover and / or the back cover are opened, they are formed to bend in the direction in which the holding sheet extends, and the connected connecting portions of the holding sheet are aligned when the sandwiched body is sandwiched. it is shape retention to be maintained the shape Hokyo the the held member between opposing surfaces of Hokyo sheet, and when removing the can Hikyotai, to be curved toward the Nobiru side of Hokyo sheet When the sandwiched body is sandwiched between the sandwiched sheets, the sandwiched sheet holds the sandwiched body between other sandwiched sheets in the region of the connecting portion and covers the sandwiched sheet in the region protruding from the connecting portion. When it is formed so as to contact the surface of the sandwiched body and the sandwiched body is removed The file is formed so that the gap between the adjacent holding sheets in the region of the connecting portion is widened and the object to be clamped can be held and removed by the fingertip.
The file according to claim 2 of the present invention includes a back cover, a cover formed continuously on one side in the width direction of the spine, and a back formed continuously on the other side in the width direction of the spine. Including a front cover, and a back cover which is a file in which a holding sheet sandwiching the object to be sandwiched is arranged side by side, and the back cover is connected to the front cover and the back cover through arc-shaped corners. The spine has a plurality of through-holes so as to be arranged from the upper end side to the lower end side in the longitudinal direction on the inner side at a certain distance from the arcuate corners connecting the front cover and the back cover. The hole edges of the plurality of through holes are arranged in a straight line in the height direction of the spine cover, and one shape retaining portion is formed on the hole edge on the front cover side of the plurality of through holes. the other shape-retaining portion is formed on the hole edge of the back cover side of the through hole, between the plurality of through-holes, an inner front cover Between the inside of the cover, a band-shaped erection connecting portion is formed between the one shape retaining portion and the other shape retaining portion, and is continuous in the height direction in an intermediate region in the width direction. formed a curved portion of constant width, the curved portion of the shape retaining part and the back cover side of the front cover side is between shape retention portion, the front cover side of the hole edge and the back cover side Between the hole edges, the holding sheet is arranged at an interval corresponding to the thickness of the object to be sandwiched between the construction connecting portions formed between the inner side of the front cover and the inner side of the back cover. A curved portion having a constant width that is continuous in the height direction in the intermediate region in the width direction of the file cover body, in which the connecting portion of the holding sheet is thermally welded to the curved portion at the edge of the spine cover side part was formed, having a spine portion, the bridging connecting portion and Fukumuwan curved portion of the coupling portion, the front cover side It is generally softer configuration than the shape-retaining portion of the shape-retaining portion and the back cover side, connecting portions of the Hokyo sheet, when sandwiching the the held body, Hikyotai between opposing surfaces of Hokyo sheet lined together with the shape retention to be maintained a curved shape in and towards the Nobiru side of Hokyo sheet so as to maintain the shape Hokyo, when opening the front cover and back cover, and front cover The space between the back cover and the back cover is reduced, and is further bent in an extending direction of the holding sheet so as to bend in an arch shape. with the shape retention to be maintained a curved shape toward the object to be sandwiched body Nobiru side of and Hokyo sheet to be maintained the shape Hokyo between opposing surfaces of the sheet, the front cover and When opening the back cover, make sure that one of the shape retaining parts and the other Centering on the inner edge, it is formed to bend further in the direction of the holding sheet and bend in an arch shape, and the holding sheet is adjacent in the region of the connecting portion when sandwiching the object to be clamped The sandwiched body is held between other sandwich sheets and formed so as to come into contact with the surface of the sandwiched body in the region protruding from the connecting portion. When the sandwiched body is removed, it is adjacent in the region of the connecting portion. This is a file formed so that the interval between the other holding sheets is widened and the object to be clamped can be held and removed by a fingertip.
The file according to claim 3 of the present invention is a back cover, a cover formed continuously on one side in the width direction of the spine, and a back formed continuously on the other side in the width direction of the spine. Including a front cover, and a back cover which is a file in which a holding sheet sandwiching the object to be sandwiched is arranged side by side, and the back cover is connected to the front cover and the back cover through arc-shaped corners. The back cover is formed with one shape retaining portion on the front cover side and the other shape retaining portion on the back cover side inside the arc-shaped corner, and the retaining sheet is a first retaining sheet. And a second sandwiching sheet, wherein the first sandwiching sheet includes a rectangular sandwiching sheet portion and an end portion of the sandwiching sheet portion from the inside of the spine cover and the plurality of second sandwiching sheets. A welded connection body is formed between the ends of the back cover, and the welded connection body has a width substantially the same as the width of the spine cover. The inside of the spine cover is welded to the one shape-retaining portion and the other shape-retaining portion, and the welded connection body holds the sandwiched body between the opposing surfaces of the sandwiching sheets arranged when the sandwiched body is sandwiched. are shape retention to be maintained a narrow shape, and when removing the can Hikyotai is flexibly formed so as to be curved toward the Nobiru side of Hokyo sheet, back cover, the intermediate in the width direction In the region, a curved portion having a certain width continuous in the height direction is formed, and has a spine cover portion to which a sandwich sheet is fixed to the curved portion, and the sandwich sheet is a thickness of the sandwiched body. At the edge of the back cover side, with a distance corresponding to the height, they are welded together and connected side by side to form a curved part, and the back cover part is between the inner side of the front cover and the inner side of the back cover. In the width direction of the file cover body, the connecting portion of the holding sheet is thermally welded to the welded connection body of In the middle region, a curved portion having a constant width in the height direction is formed, forming a spine portion, and the holding sheet is adjacent in the region of the welded connector when sandwiching the sandwiched body. The sandwiched body is held between the other sandwich sheet and formed so as to contact the surface of the sandwiched body in the region protruding from the welded connection body. When removing the sandwiched body, it is fixed to the welded connection body. This is a file formed so that the space between the adjacent holding sheets in the region formed is wide and the object to be sandwiched can be held and removed by the fingertip.
In the file according to claim 4 of the present invention, the cover is configured as a cover whose width is narrower than that of the back cover, and even when the cover is closed, from the front cover side to the holding sheet take-out side edge. 4. The file according to claim 1, wherein the file is configured so that the formed index can be viewed.
In the file according to claim 5 of the present invention, the holding sheet connecting portion or the welded connecting body is connected to the front cover at one end in the width direction and connected to the back cover at the other end in the width direction. Consists of the cover of the file that forms the cover part, connected between the inside of the front cover and the inside of the back cover, and in the middle region in the width direction of the file cover body, a constant continuous in the height direction When the curved portion of the width is formed and the width of the curved portion is shorter than the distance between the inner surface of the closed front cover and the inner surface of the back cover, are shape retention to the planar or Nobiru side or Nobiru side Hokyo sheet Hokyo sheet is maintained a shape curved toward the opposite side, and when opening the front cover and back cover, coercive Direction of the sandwich sheet Formed to curved toward a file according to any one of claims 1 to 4.
In the file according to claim 6 of the present invention, a hinge groove is formed between the back cover and the back cover and between the back cover and the back cover from the upper end to the lower end of the cover, and inside the groove, The front cover-side shape-retaining portion and the back cover-side shape-retaining portion are formed, and further spaced apart from the hinge groove and in parallel with the hinge groove, another hinge groove extending from the upper end to the lower end of the front cover and the back cover. The file according to claim 1, wherein the file is formed.
According to a seventh aspect of the present invention, there is provided a file manufacturing method comprising: a back cover; a cover formed continuously on one side in the width direction of the spine; and continuously formed on the other side in the width direction of the spine. And a back cover having a holding sheet sandwiched between the back cover, and a fixed distance from a corner connecting the front cover and the back cover. On the inner side, a plurality of through holes are formed so as to be arranged from the upper end side to the lower end side in the longitudinal direction, and the hole edges of the plurality of through holes are arranged linearly in the height direction of the spine cover, and Inside the arc-shaped corner, one shape retaining portion is formed at the hole edge on the front cover side of the plurality of through holes , and the other shape retaining portion is formed at the hole edge on the back cover side of the plurality of through holes. In addition, between the plurality of through holes, between the inside of the front cover and the inner side of the back cover, the one shape retaining portion Prepare a spine cover on which a belt-like erection connecting portion is laid between the other shape-retaining portion, and place the holding sheet on the spine side with an interval corresponding to the thickness of the sandwiched body. linked by thermal welding to form the connecting portions alongside one another in the edge, and the welding step, the bridging connecting portion and / or shape retention portion is formed between the inner of the inner and back cover of the front cover The holding sheets are arranged side by side when the sandwiched sheet is sandwiched by heat-welding the connecting portion of the sandwiched sheet at the edge on the spine cover side with an interval corresponding to the thickness of the sandwiched body. is shape retaining so as to maintain the shape for holding the clamping member between opposing surfaces of the clamping seat, and when removing the can Hikyotai flexibly formed such that curved toward the Nobiru side of Hokyo sheet Forming the bent portion in the spine area, and the arc-shaped corner portion on the spine To continuously provided a front cover and a back cover via, and a cover forming step, the curved portion is between shape retention of the shape retaining part and the back cover side of the front cover side, the front cover side The spine cover portion is formed between the hole edge and the hole edge on the back cover side, and the width of the curved portion is larger than the distance between the inner surface of the closed cover cover and the inner surface of the back cover. is configured such it is shorter, the curved portion, when sandwiching the the held member is shape retention to be maintained planar shape, and when opening the front cover and back cover, the Hokyo sheet The holding sheet is formed so as to bend toward the extending direction, and when the sandwiched sheet sandwiches the sandwiched body, the sandwiched body holds the sandwiched body between other sandwiched sheets in the region of the connecting portion, and is connected. Formed so as to come into contact with the surface of the sandwiched body in the region protruding from the portion. This is a file manufacturing method for manufacturing a file that is formed so that the space between the adjacent holding sheet in the region fixed to the sheet is widened and the object to be clamped can be held and taken out by a fingertip.

According to an eighth aspect of the present invention, there is provided a file manufacturing method comprising: a back cover; a cover formed continuously on one side in the width direction of the spine; and continuously formed on the other side in the width direction of the spine. A back cover, and a back cover that includes a holding sheet that sandwiches the sandwiched body, and a method for manufacturing the file, wherein a plurality of the sheets are arranged from the upper end to the lower end in the longitudinal direction. through hole is formed, the hole edge of the plurality of through holes, in the height direction of the spine, aligned in a straight line, and shape-retaining portion of the hand to the front cover of the side hole edge of the plurality of through holes are formed , shape retention portion of the other side is formed on the back cover side of the plurality of through holes hole edges, during the through hole between the inner inside and back cover of the front cover, the one shape-retaining portion Is formed between the first shape retaining portion and the other shape retaining portion. Prepare a spine that has a curved portion with a constant width in the direction, and hold the holding sheets side by side at the edge on the spine side with an interval corresponding to the thickness of the sandwiched body. linked and thermally welded to form a connecting portion, and the welding step, the bridging connecting portion and / or shape retention portion is formed between the inner of the inner and back cover of the front cover, the Hokyo sheet, At intervals corresponding to the thickness of the sandwiched body, the connecting portion of the sandwich sheet is thermally welded at the edge on the spine cover side, and when the sandwiched body is sandwiched, between the facing surfaces of the sandwich sheets arranged side by side in the shape retention to be maintained the shape to hold the Hikyotai, and when removing the can Hikyotai, spine a curved portion which is flexibly formed such that curved toward the Nobiru side of Hokyo sheet formed in the region includes a curved portion forming step, the curved portion, the shape retaining portion of the front cover side and the back cover side Is between shape retention portion, between the front cover side of the hole edge and the back cover side hole edge, is configured, the bridging connecting portion and Fukumuwan curved portion of the coupling portion, the one shape-retaining portion And the other shape retaining portion is generally softer, and the connecting portion of the sandwich sheet is generally more flexible than the front cover and the back cover, and when sandwiching the sandwiched body, with the shape retention to be maintained a curved shape toward the object to be sandwiched body Nobiru side of and Hokyo sheet to be maintained the shape Hokyo between opposing surfaces, front cover and back cover When the cover is opened, the distance between the front cover and the back cover is reduced, and is further bent in an extending direction of the holding sheet to be bent in an arch shape. When sandwiching, the shape that holds the sandwiched body between the opposing surfaces of the holding sheets arranged side by side is maintained. With the shape retention to be maintained a curved shape in and towards the Nobiru side of Hokyo sheet as, when opening the front cover and back cover, of one of the shape-retaining part and the other over the shape retaining force Centering on the inner edge of the shape-retaining part, it is formed so as to bend further in the direction of the holding sheet and bend in an arch shape. In this case, the sandwiched body is held between adjacent sandwich sheets, and is formed so as to contact the surface of the sandwiched body in the region protruding from the connecting portion. This is a method for manufacturing a file, in which a file is manufactured in such a manner that a space between the adjacent holding sheet in the fixed region is widened and the object to be clamped can be held and taken out with a fingertip.
According to a ninth aspect of the present invention, there is provided a file manufacturing method comprising a spine cover, a front cover formed continuously on one side in the width direction of the spine cover, and continuously formed on the other side in the width direction of the spine cover. A backside cover, a method for manufacturing a file in which a holding sheet sandwiching a sandwiched body is arranged side by side on a spine cover, the arc-shaped corner portion being continuously provided on the front cover and the back cover A back cover formed with one shape-retaining portion on the front cover side and the other shape-retaining portion on the back cover side, and having a first holding sheet and a second holding sheet The first sandwich sheet has a rectangular sandwich sheet portion and a welded connecting body extending from an end portion of the sandwich sheet portion to an inner side of the spine cover and end portions of the plurality of second sandwich sheets. A holding sheet is formed, the welded connection body having a width substantially the same as the width of the spine; The welding process is performed in such a manner that the sheet is welded and connected to the welded connecting body side by side at the edge on the spine cover side with an interval corresponding to the thickness of the sandwiched body, and arranged when the sandwiched body is sandwiched are shape retention to be maintained the shape for holding the clamping member between opposing surfaces of Hokyo sheet, and when removing the can Hikyotai, flexible so that curved toward the Nobiru side of Hokyo sheet the curved portion formed to form the spine region, includes a curved portion forming step, said welding connecting member, and a welding connection body welding step of welding the shape retention portion and the other of the shape retaining portion of the one, The spine cover has a spine cover portion in which a curved portion having a certain width continuous in the height direction is formed in an intermediate region in the width direction, and a holding sheet is fixed to the curved portion. The sandwich sheet is placed at the edge on the spine side with an interval corresponding to the thickness of the sandwiched body. A curved part is formed by being welded together and connected side by side, and the back cover part is heat welded to the connecting part of the holding sheet to the welded connection body between the inside of the front cover and the inside of the back cover. In the middle region in the width direction of the file cover body, a curved portion having a certain width continuous in the height direction is formed, and the holding sheet is fixed to the welded connection body when the sandwiched body is sandwiched. In the region, the sandwiched body is held between the other sandwiching sheets adjacent to each other, and is formed so as to be in contact with the surface of the sandwiched body in the region protruding from the welded connection body. A file manufacturing method for manufacturing a file, in which a space between an adjacent holding sheet in a region fixed to a coupling body is widened and the object to be sandwiched can be held and taken out with a fingertip. .
In the file manufacturing method according to the tenth aspect of the present invention, the holding connection portion formed between the inner side of the holding sheet and the front cover and the inner side of the back cover is a thermoplastic synthetic resin sheet. The edge of the sandwich sheet is thermally melted and fixed to the erection connecting portion, and when the edge of the holding sheet is thermally melted, the region of the linking part of the sandwich sheet and the erection connecting portion are bent at the same time or later. The file manufacturing method according to claim 7, wherein the curved portion is formed.

According to the file according to the present invention, it is possible to obtain a file that is easy to remove when a sheet or a card is sandwiched.
According to the invention of claim 5, the holding sheet connecting portion or the welded connecting body is connected to the front cover at one end in the width direction and connected to the back cover at the other end in the width direction. Consists of a cover body of the formed file, connected between the inside of the front cover and the inside of the back cover, in a middle area in the width direction of the file cover body, with a constant width of width The curved portion is formed so that the width of the curved portion is shorter than the distance between the inner surface of the closed front cover and the inner surface of the back cover. or a Nobiru side or Nobiru side Hokyo sheet Hokyo sheets are shape retention to be maintained a shape curved toward the opposite side, and when opening the front cover and back cover, the Hokyo sheet Bend toward the direction of extension Since it is formed, when sandwiching the sandwiched body, the sandwiched body is held between the adjacent holding sheet in the region of the connecting portion and the welded connected body, and protruded from the connecting portion and the welded connected body. When it is formed so as to be in contact with the surface of the sandwiched body in the region and the sandwiched body is removed, the gap between the connecting portion and the other adjacent holding sheet in the region fixed to the welded joined body is widened. Can be held and removed with a fingertip.
According to the file manufacturing method of the present invention, it is possible to obtain a file that is easy to remove when a sheet or a card is sandwiched.
According to the invention of claim 10, the erection connecting portion formed between the inside of the holding sheet and the front cover and the inside of the back cover is a thermoplastic synthetic resin sheet, and the edge of the holding sheet is When the edge of the holding sheet is heat-melted and fixed to the erection connecting portion by heat melting, the bent portion is formed by bending the region of the linking portion of the holding sheet and the erection connecting portion at the same time or later. Therefore, when sandwiching the object to be sandwiched, the curved portion holds the object to be sandwiched between the adjacent holding sheet in the region of the connection part and the welded connection body, and protrudes from the connection part and the welded connection body. When the sandwiched body is removed, the gap between the connecting portion and other adjacent holding sheets in the region fixed to the welded joined body is increased. Hold the body with your fingertips and remove it.

  The above object, other objects, features, and advantages of the present invention will become more apparent from the following description of the best mode for carrying out the invention with reference to the drawings.

It is a perspective view which shows an example of the file concerning this invention. It is a top view which shows the cover used for the file shown in FIG. It is a front solution figure which shows the state where the cover was closed, (A) is a sectional view figure of Drawing 2A-A, and (B) is a sectional view figure of Drawing 2B-B. It is a front solution figure which shows the state which opened the cover. FIG. 7 is an illustrative view showing a process of preparing a cover in the file manufacturing process shown in FIG. 1. It is a top view which shows the principal part of the cover shown in FIG. It is an illustration figure which shows the process of laminating | stacking a holding sheet and a slip sheet. It is a top view of a holding sheet. It is a perspective view solution figure which shows the process of welding a holding sheet | seat on a spine. It is an illustration figure of the bookbinding apparatus which welds a holding sheet | seat on a spine. It is sectional drawing solution figure which shows the process of welding a holding sheet | seat to a spine. It is sectional drawing solution figure which shows the process of welding a holding sheet | seat to a spine. It is sectional drawing solution figure which shows the process of welding a holding sheet | seat to a spine. It is a top view which shows the principal part of a cover when a pinching sheet is welded to the spine of a cover. FIG. 1 is an illustrative front view showing a state in which a cover of a modified example of the embodiment shown in FIG. 1 is closed. FIG. 1 is an illustrative front view showing a state in which a cover of a modification of the embodiment shown in FIG. 1 is opened. It is a cross-sectional solution figure which shows the process of curving a spine. It is a perspective view which shows an example of the file concerning this invention. It is a top view which shows the cover used for the file shown in FIG. It is AA sectional drawing of the cover shown in FIG. 15, (A) shows the extended state, (B) shows the state bent so that the front cover side and the back cover side may oppose. It is a front view solution figure which shows the state which closed the cover. It is a front solution figure which shows the state which opened the cover. FIG. 15 is an illustrative view showing a step of preparing a cover in the file manufacturing step shown in FIG. 14. It is a top view which shows the principal part of the cover shown in FIG. It is an illustration figure which shows the process of laminating | stacking a holding sheet and a slip sheet. It is a top view of the holding sheet | seat which has the index on which the parameter | index of "a" was displayed. It is a top view of the holding sheet | seat which has the index on which the parameter | index of "b" was displayed. It is a top view of the holding sheet | seat which has the index on which the parameter | index of "e" was displayed. It is a perspective view solution figure which shows the process of welding a holding sheet | seat on a spine. It is an illustration figure of the bookbinding apparatus which welds a holding sheet | seat on a spine. It is sectional drawing solution figure which shows the process of welding a holding sheet | seat to a spine. It is sectional drawing solution figure which shows the process of welding a holding sheet | seat to a spine. It is sectional drawing solution figure which shows the process of welding a holding sheet | seat to a spine. It is a cross-sectional solution figure which shows the process of curving a spine. It is a top view which shows the principal part of a cover when a pinching sheet is welded to the spine of a cover. 14 is an illustrative view showing a step of laminating a holding sheet and a slip sheet of a modification of the embodiment shown in FIG. 14 is a plan view of a holding sheet having an index on which the index “a” of the modification of the embodiment shown in FIG. 14 is displayed. 14 is a plan view of a holding sheet having an index on which the index “b” of the modification of the embodiment shown in FIG. 14 is displayed. FIG. 14 is a plan view of a holding sheet having an index on which an index “e” is displayed according to a modification of the embodiment shown in FIG. 14. It is an illustration figure of the bookbinding apparatus which welds a holding sheet | seat on a spine. It is sectional drawing solution figure which shows the process of welding a holding sheet | seat to a spine. It is sectional drawing solution figure which shows the process of welding a holding sheet | seat to a spine. It is sectional drawing solution figure which shows the process of welding a holding sheet | seat to a spine. It is a cross-sectional solution figure which shows the process of curving a spine. 14 is a perspective view of a file showing a modification of the embodiment shown in FIG. 14 is a cross-sectional view of the cover of the file showing a modification of the embodiment shown in FIG. It is a front view solution figure which shows the modification of a clamping sheet. It is a front view solution figure which shows the modification of a clamping sheet. It is explanatory drawing of a file.

FIG. 1 is a perspective view showing an example of a file according to the present invention, FIG. 2 is a plan view showing a cover used for the file shown in FIG. 1, and FIG. 3 is a front view showing a state where the cover is closed. It is an illustrative view, (A) is a sectional view of FIG. 2A-A, (B) is a sectional view of FIG. 2B-B, FIG. 4 is a front view of the state where the cover is opened, FIG. 5 is an illustrative view showing a cover preparation step in the file manufacturing process shown in FIG. 1, and FIG. 6 is a plan view showing the main part of the cover shown in FIG.
This file 10 is used, for example, for managing documents, certificates, cards, etc. arranged in the order of Iueo or index.
The file 10 includes a cover 12 formed of a synthetic resin sheet such as a thermoplastic resin. As shown in FIG. 2, the cover 12 includes a rectangular spine cover 14, a cover 16 formed continuously on one side in the width direction of the spine 14, and the other side in the width direction of the spine 14. And a back cover 18 formed continuously.
The front cover 16 is formed in a rectangular shape, for example, and one end side in the width direction is connected to the spine cover 14.
Further, the back cover 18 is formed, for example, in one end side in the width direction in an arc shape and in the other three sides in a straight line shape.
The opposite end of the arc-shaped portion of the back cover 18 is connected to the spine 14.
In this embodiment, the back cover 14, the front cover 16, and the back cover 18 are integrally formed by cutting, for example, a sheet-like material.

On the spine cover 14, a holding sheet 30 sandwiching the sandwiched body X is fixed side by side at an interval corresponding to the thickness of the sandwiched body X such as a document, a certificate, or a card.
The holding sheet 30 is fixed to the inner side of the synthetic resin sheet constituting the spine 14 with a certain interval between the facing surfaces of the adjacent holding sheets 30.

The holding sheets 30 are connected to each other at the edge on the spine cover 14 side by side with an interval corresponding to the thickness of the sandwiched body X, and the connected connecting portions of the holding sheet 30 are connected to each other. 30a is shape retention to be maintained a shape Hokyo the Hikyotai X between facing surfaces of Hokyo sheet 30 aligned when sandwiching the Hikyotai X, and when removing the Hikyotai X is The holding sheet 30 is flexibly formed so as to be bent toward the extending side.

  When sandwiching the sandwiched body X, the sandwich sheet 30 holds the sandwiched body X between the other adjacent sandwich sheets 30 in the region of the connecting portion 30a and covers the portion in the region protruding from the connecting portion 30a. When it is formed so as to be in contact with the surface of the sandwich body X and the sandwiched body X is removed, the space between the adjacent holding sheet 30 in the region of the connecting portion 30a is widened, and the sandwich body X is sandwiched between the fingertips. It is formed so that it can be removed.

The spine cover 14 constitutes the cover body of the file 10 and is connected to the front cover 16 and the back cover 18 via arcuate corners.
The spine cover 14 is formed with a shape retaining portion 14a on the front cover 16 side and a shape retaining portion 14b on the back cover 18 side inside the arc-shaped corner.

The spine cover 14 has a plurality of rectangular through-holes so as to be arranged from the upper end side to the lower end side in the longitudinal direction on the inner side at a certain distance from the corner portion connecting the front cover 16 and the back cover 18. 20 is formed.
The spine 14 has an A-side hole edge 20 a of the through hole 20 and a B-side hole edge 20 b of the through hole 20 in the width direction of the spine 14.
The A surface side hole edges 20 a of the plurality of through holes 20 are arranged in a straight line in the height direction of the spine cover 14, and the B surface side hole edges 20 b of the plurality of through holes 20 are arranged in the height direction of the spine cover 14. Are arranged in a straight line.
And the shape retention part 14a is formed in the front cover 16 side of the A surface side hole edge 20a, and the shape retention part 14b is formed in the back cover 18 side of the B surface side hole edge 20b.
Between the plurality of through holes 20, between the inner side of the front cover 16 and the inner side of the back cover 18, a belt-like erection connecting portion 22 erected between the shape retaining portion 14 a and the shape retaining portion 14 b. Is formed.

The spine cover 14 is formed with a curved portion 14A having a certain width continuous in the height direction in an intermediate region in the width direction, and a holding sheet 30 is fixed to the curved portion 14A so that the spine cover portion is Configure.
The holding sheets 30 are arranged in parallel at an interval corresponding to the thickness of the sandwiched body X, and constitute a curved portion 14A of the spine cover 14.
The holding sheet 30 and the back cover 14 are thermoplastic synthetic resin sheets, and the edges of the holding sheet 30 are thermally melted and fixed to the back cover 14 to form a curved portion 14A.

The spine cover portion is formed by heat-welding the connecting portion 30a of the holding sheet 30 to the bridge connecting portion 22 formed between the inner side of the front cover 16 and the inner side of the back cover 18 in the width direction of the file cover body. In an intermediate region, a curved portion 14A having a constant width that is continuous in the height direction is formed to form a spine cover portion.
In this embodiment, the curved portion 14A is formed between the shape retaining portion 14a on the front cover 16 side and the shape retaining portion 14b on the back cover 18 side, and the A surface side hole edge 20a and the B surface side hole edge. 20b.

The spine portion is configured such that the width W ₁ of the curved portion 14A is shorter than the distance W ₀ between the inner surface of the closed front cover 16 and the inner surface of the back cover 18.
The curved portion 14A, when sandwiching the Hikyotai X is shape retention to be maintained planar shape, and when opening the front cover 16 and back cover 18, the Nobiru direction Hokyo sheet 30 It is formed so as to bend toward (shown in FIGS. 3 and 4).
The connection portion 30a of Hokyo sheet 30 is generally softer than the front cover 16 and back cover 18, when sandwiching the Hikyotai X is shape retention to be maintained planar, and the front cover 16 When the back cover 18 is opened, the space between the front cover 16 and the back cover 18 is reduced, and is formed to bend in the direction in which the holding sheet 30 extends.
In this embodiment, the curved portion 14A including the erection connecting portion 22 and the connecting portion 30a is generally softer than the shape retaining portion 14a and the shape retaining portion 14b of the spine cover 14.
When the cover portion 14A is opened, the bent portion 14A is held around the inner edges of the shape retaining portion 14a and the shape retaining portion 14b which are superior in shape retaining force, that is, the A-side side hole edge 20a and the B-side side hole edge 20b. The sheet 30 is configured to bend toward the side where the sheet 30 extends to form an arch shape.

  When sandwiching the sandwiched body X, the sandwich sheet 30 holds the sandwiched body X between the other adjacent sandwich sheets 30 in the region of the connecting portion 30a and covers the portion in the region protruding from the connecting portion 30a. When the object X is formed so as to be in contact with the surface of the sandwich body X and the to-be-clamped body X is removed, the space between the adjacent holding sheet 30 in the region fixed to the connecting portion 30a is widened, and it is sandwiched between the fingertips. Thus, the sandwiched body X can be taken out.

A plurality of holding sheets 30 are formed inside the spine 14 having a curved portion 14A that is curved.
The holding sheet 30 is formed in a rectangular shape using, for example, a thermoplastic resin. That is, one end side in the width direction of the holding sheet 30 is formed to be linear in the longitudinal direction so as to be in close contact with the inside of the spine cover 14.
Then, one end side in the width direction of the holding sheet 30 is welded to the spine 14 so that the adjacent holding sheets 30 are arranged at a predetermined interval. At this time, the holding sheet 30 is welded to the erection connecting portion 22 of the spine 14, but in the through hole 20 portion, as shown in FIG. 3, the end of the holding sheet 30 is melted and adjacent. A connecting portion 30 a that connects the end portions of the holding sheet 30 is formed.
When the front cover 12 is closed between the front cover 16 and the back cover 18, the holding sheets 30 are spaced apart from each other in the connecting portion 30 a connected to the back cover 14. In the part away from the cover sheet 16, all the holding sheets 30 are in close contact between the front cover 16 and the back cover 18.

  For example, two circular through holes 32 are formed in the holding sheet 30. The through-hole 32 is formed at a position separated in the vertical direction at the center in the width direction of the holding sheet 30, for example.

  Further, as shown in FIG. 5, a spine heading 60 is formed from the upper end to the lower end in the longitudinal direction of the cover 12 so as to cover the outer surface side of the spine 14. The spine headline 60 is formed, for example, by welding a transparent rectangular thermoplastic film to the front cover 16 and the back cover 18 at a position parallel to the spine 14. The necessary information can be displayed by inserting the back heading paper 62 into the back heading 60. At this time, it is easier to confirm the information displayed on the back cover sheet 62 from the front cover 16 side by placing more back heads 60 on the front cover 16 side than on the back cover 18 side.

A method for producing such a file 10 will now be described mainly with reference to FIGS.
The manufacturing method of the file 10 in which the holding sheet 30 is fixed in a line with an interval corresponding to the thickness of the sandwiched body X is obtained by separating the holding sheet 30 from the interval corresponding to the thickness of the sandwiched body X. Between the opposing surfaces of the holding sheets 30 arranged side by side when the sandwiched body X is sandwiched between the welding step and the connecting portion 30a. in the shape retention to be maintained the shape to hold the Hikyotai X, and when removing the Hikyotai X is curved section which is flexibly formed such that curved toward the Nobiru side of Hokyo sheet 30 A curved portion forming step of forming 14A in the spine cover 14 region.

  First, a cover 12 is prepared as shown in FIG. Next, as shown in FIG. 7, a plurality of holding sheets 30 are prepared. The size of the holding sheet 30 is set to be larger than the size of the document stored in the file 10.

In each holding sheet 30, corresponding ones of the plurality of circular through holes 32 are formed at the same position in the longitudinal direction of the holding sheet 30. Further, in each holding sheet 30, a corresponding one of the plurality of circular through holes 32 is from a width direction end (extraction side edge 30 b) opposite to the connecting part 30 a of the holding sheet 30. It is formed at an equidistant position.
Therefore, even if the holding sheets 30 have different widths, the through holes 32 of all the holding sheets 30 can be aligned by aligning the end portions in the longitudinal direction and the end portions in the width direction of the connecting portions 30a. .

  Between the holding sheets 30 arranged in this way, a slip sheet 70 as a gap member is sandwiched. As shown in FIG. 7, the interleaf paper 70 is formed in a rectangular shape having a predetermined thickness. The length of the interleaf paper 70 in the longitudinal direction is formed to be the same length as the longitudinal direction of the holding sheet 30. And the protrusion part 70a from which one part protrudes is formed in the both ends of the longitudinal direction of the interleaf paper 70. As shown in FIG. Further, the length of the interleaf sheet 70 in the width direction is formed to be shorter than the length of the holding sheet 30 in the width direction, for example.

  Two through holes 72 are formed in the slip sheet 70. The through holes 72 of the slip sheet 70 are formed corresponding to the two through holes 32 of the holding sheet 30. That is, the longitudinal direction of the sandwich sheet 30 and the longitudinal direction of the slip sheet 70 are matched, and the width direction end of the sandwich sheet 30 that is the take-out side edge 30b is matched with the one end side of the slip sheet 70 in the width direction. In this way, when the holding sheet 30 and the interleaf sheet 70 are stacked, the two through holes 32 of the holding sheet 30 and the through hole 72 of the interleaf sheet 70 are overlapped. Such a slip sheet 70 is sandwiched between a plurality of sandwich sheets 30, and the through holes 32 of the sandwich sheets 30 and the through holes 72 of the sandwich sheets 70 are aligned, so that all the sandwich sheets 30 are connected to each other. It can arrange | position so that the edge part by the side of 30a may align.

Next, as shown in FIG. 10, the holding sheet 30 is welded to the spine 14 of the cover 12. At this time, the cover 12 is held so that the spine 14 is flat. And the width direction edge part of the clamping sheet 30 is arrange | positioned in the spine cover 14 side inside the area | region in which the installation connection part 22 of the cover 12 was formed.
In this state, the opposite portions of the spine cover 14 and the holding sheet 30 are melted and then pressed against each other and welded to connect the widthwise ends of the holding sheet 30 at the construction connecting portion 22 portion. A connecting portion 30 a is formed between the end portions of the holding sheet 30 in the through hole 20 portion of the cover sheet 14. As described above, the holding sheet 30 is welded to the spine 14 with the interleaf sheet 70 interposed therebetween, whereby a gap corresponding to the thickness of the interleaf sheet 70 can be formed between the adjacent holding sheets 30.

The connecting portion 30a is shaped in the vicinity of the periphery of the shape retaining portion 14a on the front cover 16 side of the A-side hole edge 20a of the through hole 20 in the width direction of the spine 14 and on the back cover 18 side of the B-side hole edge 20b. It is welded in the vicinity of the peripheral edge of the portion 14b, in the vicinity of the peripheral edge of the installation connecting portion 22 on the front side of the front hole edge 20c in the width direction, and in the vicinity of the peripheral edge of the installation connecting portion 22 on the other side of the far side hole edge 20d.
Further, when the connecting portion 30a is heated at the time of welding with the spine cover 14 and the erected connecting portion 22, the connecting portion 30a starts to melt by heating, and the connecting portion 30a that has become flexible enters into the hole of the through-hole 20, and the through-hole Close contact with 20 hole edges. That is, it adheres to the A-side hole edge 20a, the B-side hole edge 20b, the near-side hole edge 20c, and the far-side hole edge 20d of the through hole 20.

  Next, as shown in FIGS. 3, 4, and 5, a rectangular transparent resin film is welded to the cover sheet 12 on the side opposite to the side on which the holding sheet 30 is welded to form a spine headline 60. Is done. Here, as described above, both sides in the width direction of the back headline 60 are welded to the cover sheet 12 so that the front cover 16 side is covered with the back headline 60 more than the back cover 18 side. A back heading sheet 62 is inserted into the back heading 60. Next, the interleaf paper 70 between the holding sheets 30 is removed by pulling out the interleaf paper 70 using the protruding portion 70a.

  The file 10 thus obtained is used as, for example, 20 types of cards or a document management file. If the cover 12 is closed, the sandwiched body X is pressed by the adjacent sandwich sheet 30, and the sandwiched body X is held without being detached from the file 10. Even when there are a plurality of sandwiched bodies X, there is a gap corresponding to the thickness of the interleaf sheet 70 between the adjacent sandwiched sheets 30, so the sandwiched bodies X are held together between the sandwiched sheets 30. Can do.

When the document held in the file 10 is taken out, the sandwiched body X can be removed by opening the necessary sandwich sheet 30.
Here, since the circular through hole 32 is formed in the holding sheet 30, the space between the holding sheet 30 and the object X is in a vacuum state, and the object X is held on the holding sheet 30. It can prevent sticking. As described above, since the file 10 can be held by simply sandwiching a document between the adjacent holding sheets 30, the object X can be easily put in and out.

Thus, if this file 10 is used, necessary documents can be managed according to the index.
Note that the number of the holding sheets 30 can be arbitrarily changed. For example, if documents for one week are managed, the holding sheets having an index 434 on which indexes from “1” to “7” are displayed. 30 and the holding sheet 30 having the index 434 on which dots are displayed may be used.
If documents for two weeks are to be managed, the holding sheet 30 having an index 434 on which indexes from “1” to “14” are displayed and the holding sheet having an index 434 on which dots are displayed. 30 may be used.
Furthermore, the display of the index 434 is not limited to the index, and other items may be displayed according to the use of the file 10.

The present invention can be variously modified based on the inventive idea.
The holding sheet 30 may be deformed as shown in FIGS. 11 to 13.

The connecting portion 30a of the holding sheet 30 is connected to the front cover 16 at one end in the width direction and connected to the spine 14 at the other end in the width direction to form a cover body of the file 10 forming the back cover portion. The connecting portion 30a is generally more flexible than the front cover 16 and the back cover 18, and maintains a curved shape toward the opposite side of the holding sheet 30 when the sandwiched body X is sandwiched. are shape retention as and when opening the front cover 16 and back cover 18, the distance between the front cover 16 and back cover 18 shrinks, so that curved toward the Nobiru direction Hokyo sheet 30 May be formed.

According to the method of manufacturing the file 10 in which the holding sheets 30 sandwiching the sandwiched body X of the modified example are arranged side by side, the sandwich sheet 30 is separated from the back cover with an interval corresponding to the thickness of the sandwiched body X. 14 to the sandwiched body X between the facing surface of the holding sheet 30 that is lined up when the sandwiched body X is sandwiched between the welding step, in which the joint portion 30a is formed by heat welding and joining together at the edge on the 14th side. are shape retention to be maintained a shape for holding and Hikyotai when removing the can X, curved portion 14A of the back cover 14 that is flexibly formed such that curved toward the Nobiru side of Hokyo sheet 30 A curved portion forming step of forming in the region.

  The erection connecting portion 22 formed between the inside of the holding sheet 30 and the front cover 16 and the inside of the back cover 18 is a thermoplastic synthetic resin sheet, and the edge of the holding sheet 30 is melted by heat. The bent portion 14A is bent by bending the region of the connecting portion 30a of the holding sheet 30 and the connecting portion 22 at the same time or later when the end edge of the holding sheet 30 is heat-melted. Form.

  As shown in FIG. 13, the spine 14 bends in a region where the holding sheet 30 is fixed at the same time or later when the edge of the holding sheet 30 is thermally melted to form a bent portion 14A. As described above, the synthetic resin that forms the spine 14 by pressing a jig having an arcuate surface on the opposite side (back-to-back side) of the back cover 14 to which the holding sheet 30 is fixed. Curve the sheet.

14 is a perspective view showing an example of a file according to the present invention, FIG. 15 is a plan view showing a cover used for the file shown in FIG. 14, and FIG. 16 is an A- of the cover shown in FIG. It is A sectional drawing, (A) shows the extended state, (B) is a figure which shows the state bent so that the front cover side and the back cover side may oppose, FIG. 17 closed the cover FIG. 18 is a front illustrative view showing a state in which the cover is opened, and FIG. 19 is an illustrative view showing a step of preparing the cover in the file manufacturing process shown in FIG. is there.
This file 410 is used, for example, to manage documents, certificates, cards, etc. arranged in the order of Iweo or index.
The file 410 includes a cover 412 formed of a synthetic resin sheet such as a thermoplastic resin. As shown in FIG. 15, the cover 412 includes a rectangular spine 414, a front cover 416 continuously formed on one side in the width direction of the spine 414, and the other side in the width direction of the spine 414. And a back cover 418 formed continuously.

The front cover 416 is formed in a rectangular shape, for example, and one end side in the width direction is connected to the spine cover 414.
Further, the back cover 418 is formed, for example, such that one end side in the width direction is formed in an arc shape and the other three sides are formed in a straight line shape.
The end of the back cover 418 opposite to the arc-shaped portion is connected to the spine 414.
In this embodiment, the width of the back cover 418 is formed to be larger than the width of the cover 416. The spine 414, the front cover 416, and the back cover 418 are integrally formed, for example, by cutting a sheet-like material.

A plurality of holding sheets 430 sandwiching the sandwiched body X are fixed to the spine cover 414 at intervals corresponding to the thickness of the sandwiched body X such as documents, certificates, cards, and the like.
The holding sheet 430 is connected to each other at the edge on the spine cover 414 side-by-side with an interval corresponding to the thickness of the sandwiched body X, and the connected connecting portions of the holding sheet 430 are connected to each other. 430a is shape retention to be maintained a shape Hokyo the Hikyotai X between facing surfaces of Hokyo sheet 430 aligned when sandwiching the Hikyotai X, and when removing the Hikyotai X is It is formed so as to be flexible as a whole so that the radius of curvature becomes smaller compared with the case where the sandwiched body X is sandwiched by being further bent toward the extending side of the holding sheet 430.

  The holding sheet 430 is connected to the front cover 416 at one end in the width direction and is connected to the spine cover 414 at the other end in the width direction to form a file cover body forming a back cover portion.

Connecting portion 430a is generally more flexible than the front cover 416 and back cover 418, when sandwiching the Hikyotai X is shape retention to be maintained a curved shape toward the Nobiru side of Hokyo sheet 430 In addition, when the front cover 416 and the back cover 418 are opened, the interval between the front cover 416 and the back cover 418 is reduced, and the cover sheet 430 is formed to bend in the extending direction.

The spine cover 414 constitutes the cover body of the file 410 and is connected to the front cover 416 and the back cover 418 via arcuate corners.
The spine cover 414 is formed with a shape retaining portion 414a on the front cover 416 side and a shape retaining portion 414b on the back cover 418 side inside the arc-shaped corner.

A plurality of rectangular through holes 420 are formed on the spine cover 414 so as to be arranged from the upper end side to the lower end side in the longitudinal direction.
The spine 414 has an A-side hole edge 420 a of the through hole 420 and a B-side hole edge 420 b of the through hole 420 in the width direction of the spine 414.
The A-side hole edges 420a of the plurality of through holes 420 are arranged in a straight line in the height direction of the spine cover 414, and the B-side hole edges 420b of the plurality of through holes 420 are in the height direction of the spine cover 414. Are arranged in a straight line.
A shape retaining portion 414a is formed on the front cover 416 side of the A surface side hole edge 420a, and a shape retaining portion 414b is formed on the back cover 418 side of the B surface side hole edge 420b.
Between the through holes 420, a belt-like erection connecting portion 422 is formed between the shape retaining portion 414a and the shape retaining portion 414b between the inner side of the front cover 416 and the inner side of the back cover 418. Is done.

The spine 414 forms a cover body of the file 410, and a curved portion 414A having a constant width is formed in the middle region in the width direction, and the holding sheet 430 is formed in the curved portion 414A. Is fixed to constitute the spine portion.
The holding sheet 430 is juxtaposed in the width direction of the bent portion 414A of the curved shape of the spine 414 with an interval corresponding to the thickness of the sandwiched body X, and the connecting portion 430a of the holding sheet 430 is The curved portion 414A of the back cover 414 is configured.
The holding sheet 430 and the back cover 414 are thermoplastic synthetic resin sheets, and the edge of the holding sheet 430 is heat-melted and fixed to the back cover 414. The back cover 414 is attached to the end of the holding sheet 430. A curved portion 414A is formed by bending a region to which the holding sheet 430 is fixed simultaneously or after the heat melting.

Spine 414 when sandwiching the Hikyotai X is shape retention to be maintained a curved shape toward the projecting side of Hokyo sheet 430 which is fixed to Hokyo sheet 430, a and Hikyotai X When detaching, a bent portion 414A is provided that is further bent toward the extending side of the holding sheet 430 and is flexibly formed so as to have a smaller radius of curvature than when the sandwiched body X is sandwiched.
The curved portion 414A has an arc shape that swells to the side on which the holding sheet 430 extends when the cover 412 is closed, and has an arc shape that swells to the side on which the holding sheet 430 extends when the cover 412 is opened. The diameter of the arc when opened is shorter than the diameter of the arc when opened.

  When sandwiching the sandwiched body X, the sandwich sheet 430 holds the sandwiched body X between the adjacent sandwich sheet 430 in the region of the connecting portion 430a and covers the portion in the region protruding from the connecting portion 430a. When the object X is formed so as to be in contact with the surface of the sandwich body X and is removed, the space between the adjacent holding sheet 430 in the region fixed to the connecting portion 430a is widened and is held between the fingertips. Thus, the sandwiched body X can be taken out.

The back cover portion is formed by thermally welding the connecting portion 430a of the holding sheet 430 and the welded connecting body 444 to an erection connecting portion 422 formed between the inner side of the front cover 416 and the inner side of the back cover 418. In an intermediate region in the width direction of the body, a curved portion 414A having a certain width continuous in the height direction is formed to form a spine cover portion.
In this embodiment, the curved portion 414A is located between the shape retaining portion 414a on the front cover 416 side and the shape retaining portion 414b on the back cover 418 side, and the A surface side hole edge 420a and the B surface side hole edge. 420b.

The spine portion is configured such that the width W ₁ of the curved portion 414A is shorter than the distance W ₀ between the inner surface of the closed front cover 416 and the inner surface of the back cover 418. When the sandwiched body X is sandwiched between the bent portions 414 </ b> A, the sandwiched sheet 430 extends so as to maintain a shape that sandwiches the sandwiched body X between the opposing surfaces of the sandwiched sheet 430. with the shape retention to be maintained a curved shape toward the side when opening the front cover 416 and back cover 418 bends into an arch shape by further curved toward the Nobiru direction Hokyo sheet 430 (Figs. 17 and 18 are shown).
The connecting portion 430a of the holding sheet 430 is generally more flexible than the front cover 416 and the back cover 418, and when the sandwiched body X is sandwiched, the sandwiched body X between the opposing surfaces of the sandwiched sheets 430 arranged side by side. together with the shape retention to be maintained a curved shape toward the Nobiru side of the and Hokyo sheet 430 so as to maintain the shape Hokyo, when opening the front cover 416 and back cover 418, The space between the front cover 416 and the back cover 418 is reduced, and is formed so as to bend further in the direction of the holding sheet 430 and bend in an arch shape.
In this embodiment, the curved portion 414A including the erection connecting portion 422 and the connecting portion 430a is configured to be generally softer than the shape retaining portion 414a and shape retaining portion 414b of the back cover 414.
When the cover 412 is opened, the curved portion 414A is held around the inner edge of the shape retaining portion 414a and the shape retaining portion 414b which are superior in shape retaining force, that is, the A surface side hole edge 420a and the B surface side hole edge 420b. The sheet 430 is configured to bend toward the extending side to form an arch shape.

A hinge groove 424 is formed from the upper end to the lower end of the cover 412 between the spine 414 and the front cover 416 and between the spine 414 and the back cover 418. Further, another hinge groove 424 is formed from the upper end to the lower end of the front cover 416 and the back cover 418 in parallel with the hinge groove 424 at a distance from the hinge groove 424. As shown in FIG. 16, the hinge groove 424 is formed on one surface and the other surface of the cover 412.
The spine cover 414 is formed with a shape retaining portion 414 a on the front cover 416 side and a shape retaining portion 414 b on the back cover 418 side inside the groove 424.

  As shown in FIG. 16, the spine cover 414 has a first groove 424 a having a substantially arc-shaped cross-sectional shape on one surface side of the cover 412. Further, a second groove 424b having a slightly depressed cross-sectional shape is formed on the other surface side of the cover 412. Then, the cover 412 is folded so that the side on which the first groove 424a is formed is the front side and the side on which the second groove 424b is formed is the inner side.

  Although the first groove 424a side having an arcuate cross section deforms relatively freely, the degree of freedom on the second groove 424b side having a hollow cross section is low. Therefore, when the front cover 412 is folded, the front cover 416 and the back cover 418 Stress is applied to the spine 414. The erection connecting portion 422 formed in a band shape by the through-hole 420 formed in the back cover 414 is less susceptible to stress than the front cover 416 and the back cover 418, and therefore, the inner side which is the fixing surface side to which the holding sheet 430 is fixed Curved so as to dent toward Note that when the distance between the first groove 424a and the second groove 424b is small, the cover 412 is easily bent at the groove 424, and the spine 414 is difficult to bend. In addition, when the distance between the first groove 424a and the second groove 424b is large, the cover 412 is not easily bent at the groove 424 portion. Therefore, when the front cover 412 is closed, the front cover 416 and the back cover 418 are in an open state, or the spine 414 cannot withstand stress, and the spine 414 is bent at the center of the installation connecting portion 422. It may not be curved. For this reason, the interval between the first groove 424a and the second groove 424b is set so that the spine 414 is curved smoothly.

  A plurality of holding sheets 430 are formed on the inner side of the spine 414 that forms the curved strip-shaped connector. The holding sheet 430 is formed in a rectangular shape using, for example, a thermoplastic resin. That is, one end side in the width direction of the holding sheet 430 is formed to be linear in the longitudinal direction so as to be in close contact with the inner side of the spine 414. Then, one end side in the width direction of the holding sheet 430 is welded to the spine 414 so that the adjacent holding sheets 430 are arranged at a predetermined interval. At this time, the holding sheet 430 is welded to the erection connecting portion 422 of the spine cover 414. However, in the through hole 420 portion, as shown in FIG. 17, the end of the holding sheet 430 is melted and adjacent. A connecting portion 430 a that connects the end portions of the holding sheet 430 is formed. When the cover 412 is closed between the front cover 416 and the back cover 418, the respective holding sheets 430 are spaced apart from each other in the welded connection body 444 with the spine 414. In the separated part, all the holding sheets 430 are in close contact between the front cover 416 and the back cover 418.

  In the holding sheet 430, for example, two circular through holes 432 are formed. The through-hole 432 is formed at, for example, a vertically separated position in the center of the holding sheet 430 in the width direction. Furthermore, in the width direction of the holding sheet 430, an index 434 is formed on the take-out side edge 430b at the opposite end of the welded connection body 444 with the spine 416. The index 434 is formed so that a part of the end in the width direction of the holding sheet 430 protrudes.

In this embodiment, an index, for example, an index 434 for displaying the contents of a sandwiched sheet or card, is formed on the 20 holding sheets 430 on the front cover 416 side while being shifted from each other. At this time, the index 434 of the holding sheet 430 is formed by shifting the position from one end side to the other end side in the longitudinal direction of the holding sheet 430 as it goes inward from the front cover 416 side. It can arrange | position so that it may be visible continuously from the top to the bottom in the height direction.
Then, indices from “1” to “5” and “6” to “10” are assigned to each index 434 so that the order in which the numbers increase, for example, as it goes inward from the front cover 416 side (see FIG. (Not shown) is printed.
Thereby, when the holding sheet 430 is gathered, the indicators “1” to “5” and “6” to “10” are arranged in order from one end side to the other end side in the longitudinal direction of the holding sheet 430. Displayed side by side.

Following the holding sheet 430 having the index 434 on which the index “10” is displayed, that is, on the back cover 418 side, as shown in FIG. 14, from one end side to the other end side in the longitudinal direction of the holding sheet 430. The indicators “a”, “b”, “c”, “d”, and “e” are displayed in order from the top of the curved portion 414A, and further, black dots (not shown) are displayed in order. A holding sheet 430 having an index 434 is disposed.
As a result, the display from “1” to “5” on the first to fifth sheets and the display from “6” to “10” on the fifth to tenth sheets are displayed in two columns. . The eleventh to fifteenth “a” to “e” alphabet displays and the sixteenth to twentieth black dot displays are displayed in two columns, and all displays are displayed. Can see.
It should be noted that “11” to “15” “a”, “b”, “c”, “d”, and “e” and the index 434 on which the 16th to 20th black dots are displayed are also “ An index 434 is formed on each holding sheet 430 so as to have the same positional relationship as the index 434 displayed from “1” to “10”.

  Further, as shown in FIG. 19, a spine heading 460 is formed from the upper end to the lower end in the longitudinal direction of the cover 412 so as to cover the outer surface side of the spine 414. The spine heading 460 is formed, for example, by welding a transparent rectangular thermoplastic film to the front cover 416 and the back cover 418 at a position parallel to the spine 414. The necessary information can be displayed by inserting the back heading sheet 462 into the back heading 460. At this time, by making more back headings 460 on the front cover 416 side than on the back cover 418 side, the information displayed on the back heading paper 462 from the front cover 416 side can be easily confirmed.

A method for producing such a file 410 will now be described mainly with reference to FIGS.
The manufacturing method of the file 410 in which the holding sheet 430 sandwiching the sandwiched body X is fixed side by side is configured such that the holding sheet 430 is spaced from the end of the spine cover 414 side with an interval corresponding to the thickness of the sandwiched body X. A shape in which the object X is held between the welding process in which the connection parts 430a are formed by heat-welding and connecting to each other at the edges, and the opposing surfaces of the holding sheets 430 arranged when the object X is sandwiched with the shape retention to be maintained a curved shape toward the Nobiru side is maintained and Hokyo sheet 430, when removing the Hikyotai X is further toward the Nobiru side of Hokyo sheet 430 Wan A curved portion forming step of forming a curved portion 414A flexibly formed so as to bend into an arch shape in the spine cover 414 region.

First, as shown in FIG. 19, a cover 412 is prepared.
Next, as shown in FIG. 21, a plurality of holding sheets 430 are prepared. The size of the holding sheet 430 is set to be larger than the size of the document stored in the file 410.
Here, as shown in FIG. 22, the width of the holding sheet 430 having the index 434 on which the index “a” at the top of the curved portion 414A is displayed is L (1), and as shown in FIG. In addition, when the width of the holding sheet 430 having the index 434 displaying the index “b” arranged inward from the most 416 side is L (2), L (2) is longer than L (1). Formed.
Furthermore, as shown in FIG. 24, the width L (1) of the holding sheet 430 having the index 434 on which the “e” index is displayed is the holding sheet having the index 434 on which the “a” index is displayed. It is formed larger than the width L (3) of 430.
Similarly, the holding sheet 430 having the index 434 displaying the index “10” near the top of the curved portion 414A is changed from the index 434 displaying the index “1” on the spine 414 side. Up to the width L (3), the holding sheet 430 is formed so that the width becomes shorter.

As shown in FIG. 14, the index 434 displaying the indexes from “a” to “e” and the index 434 displaying the 16th to 20th black dots are arranged in different columns. This is to make it happen.
Then, from the width L (1) of the holding sheet 430 having the index 434 on which the 16th black dot index is displayed, the width of the holding sheet 430 having the index 434 on which the 20th black dot is displayed. Each of the holding sheets 430 is formed so that the width gradually increases up to L (dot).
Accordingly, the width increases from the tenth and eleventh holding sheets 430 at the center toward the first holding sheet 430 on the front cover 416 side and the 20th holding sheet 430 on the back cover 418 side. Each holding | maintenance sheet | seat 430 is arrange | positioned so that it may become.

  In each holding sheet 430, a corresponding one of the plurality of circular through holes 432 is formed at the same position in the longitudinal direction of the holding sheet 430. Further, in each holding sheet 430, a corresponding one of the plurality of circular through holes 432 is formed at a position that is equidistant from the end in the width direction opposite to the index 434 of the holding sheet 430. The Therefore, even if the holding sheets 430 have different widths, the through holes 432 of all the holding sheets 430 are aligned by aligning and overlapping the end portions in the longitudinal direction and the end portions in the width direction opposite to the indexes 434. be able to.

  Between the holding sheets 430 arranged in this way, the interval between the adjacent holding sheets 430 (the interval for maintaining the shape for holding the object X between the opposing surfaces of the holding sheets 430 arranged side by side). A sheet 470 as a gap member (space piece) for correctly holding the sheet is sandwiched. As shown in FIG. 21, the interleaf 470 is formed in a rectangular shape having a predetermined thickness. The length of the interleaf paper 470 in the longitudinal direction is formed to be the same length as the longitudinal direction of the holding sheet 430. And the protrusion part 470a from which one part protrudes is formed in the both ends of the longitudinal direction of the interleaf 470. As shown in FIG. Further, the length in the width direction of the slip sheet 470 is formed to be shorter than the length in the width direction of the holding sheet 430, for example.

  Two through holes 472 are formed in the slip sheet 470. The through holes 472 of the slip sheet 470 are formed corresponding to the two through holes 432 of the holding sheet 430. That is, the longitudinal direction of the sandwich sheet 430 and the longitudinal direction of the interleaf sheet 470 are aligned, and the width direction end portion (extraction side edge 430b) of the sandwich sheet 430 opposite to the index 434 and the interleaf sheet 470 width. When the holding sheet 430 and the interleaf sheet 470 are overlapped so as to match one end side in the direction, the two through holes 432 of the holding sheet 430 and the through hole 472 of the interleaf sheet 470 are overlapped. The By sandwiching such a slip sheet 470 between the plurality of sandwich sheets 430 and aligning the through holes 432 of the sandwich sheets 430 and the through holes 472 of the sandwich sheets 470, all the sandwich sheets 430 can be removed from the take-out side. It can arrange | position so that the edge part on the opposite side to the side edge 430b may align.

  Next, as shown in FIG. 26, the holding sheet 430 is welded to the spine cover 414 of the cover 412. At this time, the cover 412 is held so that the spine 414 is flat. Then, on the side of the cover 412 where the second groove 424b is formed, the end in the width direction of the holding sheet 430 opposite to the take-out side edge 430b is disposed on the spine 414 side. In this state, the opposite portions of the spine cover 414 and the holding sheet 430 are melted and then pressed against each other and welded to connect the end portions in the width direction of the holding sheet 430 at the erection connecting portion 422. A connecting portion 430 a is formed between the end portions of the holding sheet 430 in the through hole 420 portion of the cover sheet 414.

The connecting portion 430a is shaped in the vicinity of the periphery of the shape retaining portion 414a on the front cover 416 side of the A-side hole edge 420a of the through hole 420 in the width direction of the spine cover 414 and on the back cover 418 side of the B-side hole edge 420b. It is welded in the vicinity of the peripheral edge of the part 414b, in the vicinity of the peripheral edge of the installation connecting part 422 on the front side of the front side hole edge 420c in the width direction, and in the vicinity of the peripheral edge of the installation connecting part 422 on the other side of the far side hole edge 420d.
Further, when the connecting part 430a is heated at the time of welding with the spine 414 and the installation connecting part 422, the connecting part 430a starts to melt by heating, and the connecting part 430a that has become flexible enters the hole of the through hole 420, Close contact with the hole edge of 420. That is, it adheres to the A-side hole edge 420a, the B-side hole edge 420b, the near-side hole edge 420c, and the far-side hole edge 420d of the through-hole 420.

In this way, a gap corresponding to the thickness of the slip sheet 470 can be formed between the adjacent sandwich sheets 430 by welding the sandwich sheet 430 to the spine cover 414 with the slip sheet 470 interposed therebetween.
Next, the spine 414 is bent so as to form a bent portion 414A by bending the region where the holding sheet 430 is fixed simultaneously or later when the edge of the holding sheet 430 is thermally melted. The synthetic resin sheet that forms the spine cover 414 is bent by pressing a jig having an arcuate surface on the opposite side (back-to-back side) of the cover 414 to which the holding sheet 430 is fixed. Let

Next, as shown in FIG. 19, a rectangular transparent resin film is welded to the cover 412 on the side opposite to the side on which the holding sheet 430 is welded, and a spine heading 460 is formed. Here, as described above, both sides in the width direction of the back heading 460 are welded to the front cover 412 so that the front cover 416 side is covered with the back heading 460 more than the back cover 418 side. A back heading sheet 462 is inserted into the back heading 460.
Next, the slip sheet 470 between the holding sheets 430 is removed by pulling out the slip sheet 470 using the protruding portion 470a (shown in FIG. 21).

Then, the front cover 416 and the back cover 418 are closed so that the holding sheet 430 is on the inner side. Thereby, the spine 414 is curved so as to be recessed toward the fixing surface side of the holding sheet 430, and the file 410 shown in FIG. 14 is obtained.
Since the holding sheet 430 is different in width, when the holding sheet 430 is welded in a state where the spine cover 414 is flat, the end portions in the width direction of the holding sheet 430 on the index 434 side are uneven. However, since the back cover 414 is curved inward by closing the cover 412, the holding sheet 430 at the side is pulled toward the back cover 414.
Since the plurality of holding sheets 430 are arranged so that the width decreases from the outside toward the inside, the cover 412 is closed and the spine 414 is curved inward, so that the index 434 side The take-out side edge 430b of the end in the width direction of the holding sheet 430 is aligned.
As described above, when the cover 412 is closed, the width of each holding sheet 430 is changed in order to align the take-out side edge 430b of the end in the width direction on the index 434 side of the holding sheet 430. The pull-in amount of the holding sheet 430 when the cover 412 is closed differs depending on the width of the 414, the radius of curvature, the interval between the adjacent holding sheets 430, and the like. Therefore, the difference in width between the adjacent holding sheets 430 is set according to the pulling amount of the holding sheet 430 when the cover 412 is closed.

  The file 410 thus obtained is used as, for example, 20 types of card or document management file. For example, the first required sandwiched body X includes a holding sheet 430 having an index 434 on which an index “1” is displayed and a holding sheet 430 having an index 434 on which an index “2” is displayed. Sandwiched between them. Here, a gap corresponding to the thickness of the interleaf paper 470 is formed between the adjacent holding sheets 430. However, as shown in FIG. 17, the spine cover 414 is curved, so that it is separated from the spine cover 414. Accordingly, all the holding sheets 430 are gathered on the center side between the front cover 416 and the back cover 418, and the adjacent holding sheets 430 are in close contact with each other. Therefore, when the cover 412 is closed, the sandwiched body X is pressed by the adjacent sandwich sheet 430, and the sandwiched body X is held without being detached from the file 410. Even when there are a plurality of sandwiched bodies X, there is a gap corresponding to the thickness of the interleaf paper 470 between the adjacent sandwiched sheets 430, so the sandwiched bodies X are held together between the sandwiched sheets 430. Can do.

When the document held in the file 410 is taken out, the sandwiched body X can be removed by opening the holding sheet 430 having the index 434 on which the necessary index is displayed. When removing the sandwiched body X, a curved portion 414A is formed toward the side where the holding sheet 430 extends, and the radius of curvature is configured to be smaller than when sandwiching the sandwiched body X. It is easy to remove the sandwiched body X from between the holding sheets 430.
Here, since the circular through-hole 432 is formed in the holding sheet 430, the space between the holding sheet 430 and the sandwiched body X is in a vacuum state, and the sandwiched body X is attached to the sandwiching sheet 430. It can prevent sticking. As described above, since the file 410 can be held only by sandwiching a document between the adjacent holding sheets 430, it is easy to put in and out the sandwiched body X.

  Thus, if this file 410 is used, necessary documents can be managed according to the index. The number of the holding sheets 430 can be arbitrarily changed. For example, if documents for one week are managed, the holding sheets having an index 434 on which indexes from “1” to “7” are displayed. 430 and a holding sheet 430 having an index 434 on which dots are displayed may be used. In addition, when managing documents for two weeks, a holding sheet 430 having an index 434 on which indexes from “1” to “14” are displayed, and a holding sheet having an index 434 on which dots are displayed. 430 may be used. Furthermore, the display of the index 434 is not limited to the index, and other items may be displayed according to the use of the file 410.

  In addition, by using the manufacturing method of the present invention, the holding sheet 430 is arranged so that the end portions in the width direction on the index 434 side are aligned even though the spine cover 414 on which the holding sheet 430 is welded is curved. Can be arranged. Therefore, the indexes 434 can be arranged neatly, and the display of the index 434 can be easily viewed.

The present invention can be variously modified based on the inventive idea.
The holding sheet 430 may be deformed as shown in FIGS.
In this embodiment, the holding sheet 430 includes two types of holding sheets, a first holding sheet 440 and a second holding sheet 450.
The first holding sheet 440 includes a rectangular holding sheet portion 442 and an end portion of the plurality of second holding sheets 450 and an end portion (binding margin portion) of the back cover 414 from an end portion of the holding sheet portion 442. The welded connector 444 is integrally formed between the two.

The welded connection body 444 has a rectangular shape formed from the far side end to the near side end of the sandwiching sheet portion 442, and is formed by bending one sheet-like body so as to be orthogonal to the sandwiching sheet portion 442. The shape is slightly smaller than the cover 414.
The welded connection body 444 has a width that is substantially the same as the width of the spine cover 414, the inner surface of the installation connection part 422, the vicinity of the groove 424 in the width direction of the installation connection part 422, and Near the front cover 416 side of the A-side side hole edge 420a of the through hole 420 in the width direction of the spine cover 414, the shape retaining portion 414a near the back cover 418 side of the B-side side hole edge 420b, and the front side in the width direction It is welded to the shape retaining portion 414b in the vicinity of the near side of the hole edge 420c and in the vicinity of the far side of the hole edge 420d.

Further, when the welded connector 444 of the first holding sheet 440 is heated at the time of welding with the spine 414 and the installation connecting part 422, the welded connector 444 that starts to melt by heating becomes flexible. It enters into the hole 420 and is in close contact with the hole edge of the through hole 420. That is, it adheres to the A-side hole edge 420a, the B-side hole edge 420b, the near-side hole edge 420c, and the far-side hole edge 420d of the through-hole 420.
At this time, the welded connection body 444 is not completely melted and loses the original sheet shape, but the portion swelled outside the spine cover 414 is not melted and the original sheet-like shape is substantially maintained. Thus, a connecting portion is formed inside the through hole 420 (inside the hole).
That is, half of the welded connector 444 in the thickness direction is close to the original sheet shape, and is connected as a whole.
On the other hand, one end side in the width direction of the second holding sheet 450 is in the longitudinal direction so as to be in close contact with the inner surface of the back cover 414 and the inner side of the welded connector 444 of the first holding sheet 440. Are formed so as to be linear. Then, the sandwiching sheet portion 442 and the second sandwiching sheet 450 of the adjacent first sandwiching sheet 440 are arranged at a predetermined interval suitable for sandwiching the sandwiched body X such as a thin document. In this way, one end side in the width direction of the second holding sheet 450 is welded to the welded connecting body 444 of the first holding sheet 440, and the adjacent second holding sheets 450 are also thin. The first holding sheet 440 is welded to one end side in the width direction of the second holding sheet 450 so as to be arranged at a predetermined interval suitable for holding the object X such as a document to be held. It is welded to the connector 444.

Spine 414 is shape retention to be maintained a curved shape toward the fixed side which is fixed to Hokyo sheet 430 when sandwiching the Hikyotai X, and when removing the Hikyotai X is Hokyo A curved portion 414A is provided which is further bent toward the fixing surface side to which the sheet 430 is fixed and is flexibly formed so that the radius of curvature is smaller than when the object X is sandwiched.
The curved portion 414A has an arc shape that swells to the surface side to which the holding sheet 430 is fixed when the cover 412 is closed, and an arc shape that swells to the surface side to which the holding sheet 430 is fixed when the cover sheet 412 is opened. However, the diameter of the arc when opened is shorter than the diameter of the arc when closed.

  Since the spine cover 414 is curved, between the front cover 416 and the back cover 418, all the holding sheets 430 move toward the center between the front cover 416 and the back cover 418 as they move away from the spine 414. To concentrate. Therefore, when the front cover 412 is closed, the holding sheets 430 are spaced apart from each other in the welded connection body 444 with the spine cover 414, but in the portion away from the spine cover 414, All the holding sheets 430 are in close contact with the back cover 418.

  In order to create such a file 410, a cover 412 is prepared as shown in FIG. 31A. Here, as the cover 412, as shown in FIG. 15, both ends in the longitudinal direction of the back cover 414 are formed in advance so as to be recessed from both ends in the longitudinal direction of the front cover 416 and the back cover 418. Is used. That is, a recess 422 a is formed on the opposite side of the through-hole 420 with respect to the outermost connection portion 422 formed between the through-holes 420. For example, the recess 422a is formed to have substantially the same width as the spine 414, and the boundary between the recess 422a and the front cover 416 and the boundary between the recess 422a and the back cover 418 are formed in an arc shape. The Such a cover 412 is held so that the spine 414 is flat.

Next, as shown in FIG. 27, a plurality of holding sheets 430 are prepared.
Among the holding sheets 430, the first holding sheet 440 is arranged inside the front cover 416 and the back cover 418, and the welded connection body 444 is arranged so as to face the inside of the back cover 414.
The welded connecting body 444 of the first holding sheet 440 is disposed inside the spine cover 414 so as to face the shape-retaining portion 414 a and the shape-retaining portion 414 b in the vicinity of the hole edge of the through hole 420.
Between the vicinity of the A-side hole edge 420a and the vicinity of the B-side hole edge 420b that are spaced apart in the width direction of the through-hole 420, the shape retaining portion 414b of the spine cover 414 is evenly adhered to the left and right. In addition, the front hole edge 420c and the far side hole edge 420d that are spaced apart from each other in the longitudinal direction of the through hole 420 are arranged so as to be evenly bonded to the shape retaining portion 414a of the spine cover 414. .

Among the holding sheets 430, the end of the second holding sheet 450 (binding margin part) in the direction in which the second holding sheet 450 is orthogonal to the inner surface of the welded connector 444 of the first holding sheet 440. ) Are arranged so as to be in close contact with each other.
The sandwiching sheet portion 442 and the second sandwiching sheet 450 of the first sandwiching sheet 440 are such that the B surface side of the sandwiching sheet portion 442 and the A surface side of the second sandwiching sheet 450 are opposed to each other. The first holding sheet 440 and the second holding sheet 450 are arranged in parallel at substantially the same interval, and the longitudinal edge of the second holding sheet 450 is arranged in the longitudinal direction of the holding sheet portion 442. ing.

  In each holding sheet 430, a corresponding one of the plurality of circular through holes 432 is formed at the same position in the longitudinal direction of the holding sheet 430. Further, in each holding sheet 430, the corresponding ones of the plurality of circular through holes 432 are equidistant from the take-out side edge 430b at the width direction end opposite to the index 434 of the holding sheet 430. It is formed in the position. Therefore, even if the holding sheets 430 have different widths, the through holes 432 of all the holding sheets 430 are aligned by aligning and overlapping the end portions in the longitudinal direction and the end portions in the width direction opposite to the indexes 434. be able to.

  Between the holding sheets 430 arranged in this way (the holding sheet portion 442 and the second holding sheet 450 of the first holding sheet 440), a slip sheet 470 as a gap member is sandwiched. As shown in FIG. 27, the slip sheet 470 is formed in a rectangular shape having a predetermined thickness. The length in the longitudinal direction of the interleaf paper 470 is formed to be the same as the longitudinal direction of the holding sheet 430 (the holding sheet portion 442 and the second holding sheet 450 of the first holding sheet 440). . And the protrusion part 470a from which one part protrudes is formed in the both ends of the longitudinal direction of the interleaf 470. As shown in FIG. Further, the length in the width direction of the interleaf paper 470 is formed to be longer than the length in the width direction of the holding sheet 430, for example.

  Two through holes 472 are formed in the slip sheet 470. The through-holes 472 of the slip sheet 470 are formed corresponding to the three through-holes 432 near the end in the width direction of the holding sheet 430 opposite to the index 434. In other words, the longitudinal direction of the sandwich sheet 430 and the longitudinal direction of the slip sheet 470 are aligned, and the width direction end of the sandwich sheet 430 opposite to the take-out side edge 430b and the one end side in the width direction of the slip sheet 470 When the holding sheet 430 and the interleaf sheet 470 are overlapped with each other, the three through holes 432 on the width direction end side of the holding sheet 430 opposite to the take-out side edge 430b are aligned. The paper 470 is formed so as to overlap with the through hole 472 of the paper 470. Such a slip sheet 470 is sandwiched between a plurality of sandwiching sheets 430 (the sandwiching sheet portion 442 and the second sandwiching sheet 450 of the first sandwiching sheet 440), and is aligned with the through-hole 432 of the sandwiching sheet 430. By aligning the through holes 472 of the paper 470, all the holding sheets 430 (the holding sheet portion 442 and the second holding sheet 450 of the first holding sheet 440) are opposite to the take-out side edge 430b. It can arrange | position so that the edge part of the side may align. Next, as shown in FIG. 25E, the holding sheet 430 (the welding connector 444 of the first holding sheet 440 and the second holding sheet 450) is welded to the spine 414 of the cover 412.

  Further, as shown in FIGS. 31A to 31E, the bookbinding apparatus 1000 holds a holding sheet 430 obtained by superposing the holding sheet portion 442 of the first holding sheet 440 and a plurality of second holding sheets 450. The holding sheet holding mechanism 1002, the cover holding mechanism 1004 that holds the cover 412, the heating element 1006 (H), and the heating element 1006 (H) are interposed or removed between the holding sheet 430 and the cover 412. A cylinder mechanism (not shown) is provided.

  The holding sheet holding mechanism 1002 includes a holding sheet pressing unit 1008 fixed to the table 1010, a movable holding sheet pressing unit 1012 movable on the table 1010 by a driving unit such as a screw or a piston (not shown), and a fixed holding unit. The holding sheet 430 is clamped by the sheet pressing part 1008 and the movable holding sheet pressing part 1012.

  Further, the cover holding mechanism 1004 is configured to be attachable with the inner surface of the back cover 418 of the cover 412 facing downward, and is configured to be movable up and down by a lifting means (not shown).

  The heating element 1006 (H) is a plate having a sheathed heater or the like built therein, but the heating element 1006 (H) is not limited to this, and various means capable of releasing heat energy are conceivable.

A method of binding a file using the bookbinding apparatus 1000 will be described.
First, as shown in FIG. 31A, the sandwiching sheet portion 442 of the first sandwiching sheet 440 and the multiple second sandwiching sheets 450 are superposed, and the overlapping end face is fixed to the sandwiching sheet pressing unit 1008. The front cover 412 is held with the inner surface of the back cover 418 of the cover 412 facing downward by the cover holding mechanism 1004 and the cover holding mechanism 1004 is lowered. Thus, the upper surface of the welded connector 444 of the first holding sheet 440 and the inner surface of the back cover 418 of the front cover 412 are opposed to each other, and are brought close to a position where the heating element 1006 (H) can be interposed therebetween.
Then, the heating element 1006 (H) is interposed between the two, and the inner surface of the back cover 418 of the cover 412, the upper surface of the welded connector 444 of the first holding sheet 440, and the welded connection of the first holding sheet 440. The lower surface of the body 444 and the end face of the second holding sheet 450 are melted simultaneously.

Since the melting temperature of polypropylene is 120 to 130 ° C., the melting temperature is about 4 to 5 seconds using a heating element 1006 of about 170 to 180 ° C. and the inner surface of the back cover 418 of the cover 412. The upper surface of the welded connecting body 444 of the first holding sheet 440, the lower surface of the welded connecting body 444 of the first holding sheet 440, and the end face of the second holding sheet 450 are simultaneously melted.
Thereafter, the heating element 1006 (H) is pulled out between the spine 414 and the welded connector 444, and the spine 414 is brought into contact with the welded connector 444 of the first holding sheet 440 to join them together (FIG. 31C). reference).

  Next, the cover holding mechanism 1004 is again pressed against the upper surface of the back cover 414, the inner surface of the back cover 418 of the cover 412, the upper surface of the welded connector 444 of the first holding sheet 440, and the first holding sheet. The lower surface of the welded connector 444 of 440 and the abutting end surface of the second holding sheet 450 are welded simultaneously (see FIG. 31D).

In the holding sheet 430, the welding connection body 444 of the first holding sheet 440 of the holding sheet 430 on the side opposite to the index 434 on the side where the second groove 424 b of the cover 412 is formed is connected to the back cover 414. And the end portion in the width direction of the second holding sheet 450 is disposed on the spine cover 414 side, that is, on the inner surface side of the welded connector 444 of the first holding sheet 440.
Next, a heating element 1006 (H) is disposed between the inner surface of the spine cover 414 and the outer surface (the back cover 414 side) of the welded connector 444 of the first holding sheet 440, and the heating element 1006 ( H), the inner surface of the spine cover 414, and the welded connector 444 of the first holding sheet 440 and the end of the second holding sheet 450 are brought close to each other (the binding margin side). In this state, the heating element H inserted between the back cover 414 and the holding sheet 430 melts the facing portion between the inner surface of the back cover 414 and the holding sheet portion 442 of the first holding sheet 440. Further, the spine 414 and the holding sheet 430 are welded by melting the end portions of the second holding sheet 450 and pressing each other. At this time, half of the welded connecting body 444 in the thickness direction is in a state in which the entirety close to the original sheet shape is integrally connected.
The holding sheet 430 is formed in a rectangular shape using a thermoplastic resin such as polypropylene having elasticity, for example. On the other hand, the second holding sheet 450 is formed in a rectangular shape with a thermoplastic resin such as polypropylene having elasticity, for example, and one end side in the width direction is the inner side of the spine 414, The holding sheet 440 is formed to be linear in the longitudinal direction so as to be in close contact with the inner plane of the welded connector 444.
Then, the sandwiching sheet portion 442 and the second sandwiching sheet 450 of the adjacent first sandwiching sheet 440 are arranged at a predetermined interval suitable for sandwiching the sandwiched body X such as a thin document. In this manner, one end side in the width direction of the holding sheet 430 is welded to the spine cover 414.

  At this time, the holding sheet 430 is welded to the inner side surface of the erection connecting portion 422 of the spine cover 414. As shown in FIG. 31D, the welded connecting body of the first holding sheet 440 is formed in the through hole 420 portion. The end portion of 444 is melted, and a connecting portion 430a that connects the end portions of the adjacent second holding sheets 450 is formed. At this time, the end in the width direction of the holding sheet 430 is connected at the erection connecting portion 422, and the ends of the first holding sheet 440 and the second holding sheet 450 at the through-hole 420 portion of the spine cover 414. A connecting portion 430a is formed between the portions. In this way, a gap corresponding to the thickness of the slip sheet 470 can be formed between the adjacent sandwich sheets 430 by welding the sandwich sheet 430 to the spine cover 414 with the slip sheet 470 interposed therebetween.

  Next, the spine 414 is bent so as to form a bent portion 414A by bending the region where the holding sheet 430 is fixed simultaneously or later when the edge of the holding sheet 430 is thermally melted. The synthetic resin sheet that forms the spine cover 414 is bent by pressing a jig having an arcuate surface on the opposite side (back-to-back side) of the cover 414 to which the holding sheet 430 is fixed. Let

  Then, the welding portion is appropriately cooled, and the inner surface of the back cover 418 of the cover 412, the upper surface of the welding connector 444 of the first holding sheet 440, and the welding connector 444 of the first holding sheet 440 are completely removed. The lower surface and the butt end surface of the second holding sheet 450 are fixed.

  In addition, although the spine 414 is heated for welding, the construction connecting part 422 is expanded thereby, and the width thereof is increased. There is no particular problem with the intermediate connecting portion 422 even if the width is increased. However, when the width of the connecting portion 422 at both ends of the back cover 414 is increased, the end portion of the connecting portion 422 becomes the front cover 416. And protrudes beyond the end of the back cover 418. In this case, when the file 410 is stored upright, the weight of the file 410 is concentrated on the protruding linking part 422, the spine cover 414 is crushed, and the appearance is deteriorated. However, since the recesses 422a are formed in advance at both ends in the longitudinal direction of the spine cover 414, that is, at the ends of the two erection connecting parts 422 located outside, the width is increased by the expansion of the erection connecting part 422 due to heat. Even if it increases, the edge of the front cover 416 and the back cover 418 can be prevented from being exceeded. Therefore, it is possible to prevent weight from being concentrated on the spine 414 when the file 410 is stored upright.

Next, as shown in FIGS. 14 and 19, a rectangular transparent resin film is welded to the cover 412 on the side opposite to the side on which the holding sheet 430 on which the index 434 is formed is welded. 460 is formed. Here, as described above, both sides in the width direction of the back heading 460 are welded to the front cover 412 so that the front cover 416 side is covered with the back heading 460 more than the back cover 418 side. A back heading sheet 462 is inserted into the back heading 460.
Next, the slip sheet 470 between the holding sheets 430 is removed by pulling out the slip sheet 470 using the protruding portion 470a (shown in FIG. 21).

  Then, the front cover 416 and the back cover 418 are closed so that the holding sheet 430 is on the inner side. Accordingly, the spine 414 is curved so as to protrude to the opposite side of the holding sheet 430, and the file 410 shown in FIG. 14 is obtained. Since the holding sheet 430 is different in width, when the holding sheet 430 is welded in a state where the spine cover 414 is flat, the end portions in the width direction of the holding sheet 430 on the index 434 side are uneven. However, since the back cover 414 is curved by closing the cover 412, the sandwich sheet 430 at the center is pulled toward the back cover 414. Since the plurality of sandwich sheets 430 are arranged so that the width increases from the outside toward the inside, the cover sheet 412 is closed and the spine cover 414 is curved, whereby the sandwich sheet 430 on the index 434 side is curved. The ends in the width direction are aligned. As described above, when the cover 412 is closed, the width of each holding sheet 430 is changed in order to align the widthwise ends of the holding sheets 430 on the index 434 side. In addition, the pull-in amount of the sandwich sheet 430 when the cover 412 is closed differs depending on the interval between adjacent sandwich sheets 430. Therefore, the difference in width between the adjacent holding sheets 430 is set according to the pulling amount of the holding sheet 430 when the cover 412 is closed.

  A gap corresponding to the thickness of the interleaf paper 470 is formed between the adjacent holding sheets 430, but as shown in FIG. 17, the spine cover 414 is curved, so as it is separated from the spine cover 414, Between the front cover 416 and the back cover 418, all the holding sheets 430 are gathered on the center side, and the adjacent holding sheets 430 are in close contact with each other. Therefore, when the cover 412 is closed, the sandwiched body X such as a document is pressed by the adjacent sandwich sheet 430, and the sandwiched body X such as the document is held without being detached from the file 410. Even when there are a plurality of sandwiched bodies X such as documents, there is a gap corresponding to the thickness of the interleaf sheet 470 between the adjacent sandwiched sheets 430, so the sandwiched sheets X such as documents are held together. 430 can be held.

  Moreover, the first holding sheet 440 has the welded connector 444 of the first holding sheet 440 interposed between the second holding sheet 450 and the spine 414 so as to completely close the through hole 420. 440 and the second holding sheet 450 and between the adjacent second holding sheet 450 and the second holding sheet 450 pass through the through-hole 420 and do not fall out, so that the object to be sandwiched X Can be held together on the holding sheet 430.

  When taking out the document held in the file 410, the sandwiched body X such as a document or a card can be taken out by opening the holding sheet 430 having the index 434 on which the necessary index is displayed. Here, since the circular through-hole 432 is formed in the holding sheet 430, a space between the holding sheet 430 and the object X such as a document is in a vacuum state, and the document or the like is placed on the holding sheet 430. It is possible to prevent the sandwiched body X from sticking. As described above, since the file 410 can be held only by sandwiching a document between adjacent holding sheets 430, it is easy to put in and out the object X such as a document.

  Further, in this file 410, since the end of the back cover 414 does not exceed the ends of the front cover 416 and the back cover 418, even if the file 410 is stored on a bookshelf or the like, The weight does not concentrate on a specific location. Therefore, the end of the file 410 can be prevented from being crushed, and a clean appearance can be maintained. In addition, as the back cover 414, the thing in which the through-hole 420 is not formed can also be used. Also in this case, when the holding sheet 430 is welded by forming the recesses 422a that are recessed from the ends of the front cover 416 and the back cover 418 adjacent to both ends in the longitudinal direction of the spine 414. The end portion of the back cover 414 can be prevented from exceeding the end portions of the adjacent front cover 416 and back cover 418.

The spine cover 414 may have a structure that does not form the installation connecting portion 422.
For example, as shown in FIG. 32, the front cover 416 and the back cover 418 may be connected by a welded connector 444.

  Further, as shown in FIG. 33, the front cover 412 is configured as a front cover 412 having a narrower width than the back cover 418, and the index 434 can be viewed from the front cover 416 side even when the front cover 412 is closed. You may comprise as follows.

The holding sheet 530 may not be rectangular or rectangular.
For example, as shown in FIG. 34, a notch portion 530c in which a corner portion of the holding sheet 530 is cut out is provided, or as shown in FIG. 35, a take-out side edge which is a free edge of the holding sheet 630 A cutout portion 630c may be provided in 630b to facilitate removal of the sandwiched body X.

  The file and the manufacturing method thereof according to the present invention are used for diary, album, business card holder, postcard organizing file, letter file, clear book, magazine file, document file, medical record folder, and similar files.

10 file 12 cover 14 back cover 14A curved portion 14a shape retaining portion 14b shape retaining portion 16 front cover 18 back cover 20 through hole 20a A side side edge 20b B side side edge 20c front side edge 20d opposite side edge 22 Overlaying connection part 30 Holding sheet 30a Connection part 30b Outlet side edge 32 Through hole 60 Back heading 62 Back heading paper 70 Interleaf 70a Protruding part 72 Through hole 410 File 412 Cover 414 Back cover 414A Curved part 414a Shaped part 414b Shape retaining portion 416 Front cover 418 Back cover 420 Through hole 420a A side hole edge 420b B side hole edge 420c Front hole edge 420d Far side hole edge 422 Construction connection part 422a Depression part 424 Groove 424a First groove 424b Second groove 430 Holding sheet 430a Connecting portion 430b Take-out side edge 432 Through hole 434 Index 440 First holding sheet 442 Holding sheet portion 444 Welded connection body 450 Second holding sheet 460 Back heading 462 Back heading paper 470 Interleaf 470a Protruding part 472 Through hole 530 Holding sheet 530c Notch 630 Holding sheet 630b Take-out side edge 630c Notch 1000 Bookbinding apparatus 1002 Holding sheet holding mechanism 1004 Cover holding mechanism 1006 Heat generating element 1008 Holding sheet pressing section 1010 Table 1012 Holding sheet pressing section H Heat generating element L Width X Sandwiched body

Claims (10)

A spine cover, a front cover formed continuously on one side in the width direction of the spine cover, and a back cover formed continuously on the other side in the width direction of the spine cover. A file in which holding sheets sandwiching the body are fixed side by side,
The spine is connected to the front and back covers through arc-shaped corners,
The spine is
A plurality of through-holes are formed so as to be arranged from the upper end side to the lower end side in the longitudinal direction on the inner side with a certain distance from the arc-shaped corners connecting the front cover and the back cover,
The hole edges of the plurality of through holes are arranged in a straight line in the height direction of the spine cover, and one shape retaining portion is formed on the hole edge on the front cover side of the plurality of through holes . The other shape retaining part is formed at the hole edge on the back cover side,
Between the plurality of through-holes, between the inner inside and back cover of the front cover, the strip which is installed between the shape-retaining portion of the front cover side shape retaining part and the back cover side of the The erection connecting part is formed,
In the intermediate region in the width direction, a curved portion having a constant width that is continuous in the height direction is formed,
The curved portion is between shape retention of the shape retaining part and the back cover side of the front cover side, between the front cover side of the hole edge and the back cover side hole edge, is constructed,
The holding sheet is placed at the edge on the back cover side at an interval corresponding to the thickness of the sandwiched body at the connecting portion formed between the inner side of the front cover and the inner side of the back cover. A spine cover portion, in which a curved portion having a constant width in the height direction is formed in an intermediate region in the width direction of the file cover body by heat-welding the connecting portion of the holding sheet to the curved portion. Have
The spine portion is configured such that the width of the curved portion is shorter than the distance between the inner surface of the closed front cover and the inner surface of the back cover,
The curved portion, when sandwiching the the held member is shape retention to be maintained planar shape, and when opening the front cover and / or back cover, a bend in the direction of extension of Hokyo sheet Formed to
The linked connection of Hokyo sheets are shape retention to be maintained the shape Hokyo the the held member between opposing surfaces of Hokyo sheet aligned when sandwiching the the held object, and sneak When removing the body, it is flexibly formed to bend toward the side where the holding sheet extends,
The holding sheet is
When sandwiching the sandwiched body, the sandwiched body is formed between the adjacent holding sheet in the region of the connecting portion and is in contact with the surface of the sandwiched body in the region protruding from the connecting portion. ,
A file formed such that when the sandwiched body is removed, the space between the adjacent holding sheets in the region of the connecting portion is widened so that the sandwiched body can be sandwiched and removed by a fingertip. A spine cover, a front cover formed continuously on one side in the width direction of the spine cover, and a back cover formed continuously on the other side in the width direction of the spine cover. A file in which holding sheets sandwiching the body are fixed side by side,
The spine is connected to the front and back covers through arc-shaped corners,
The spine is
A plurality of through-holes are formed so as to be arranged from the upper end side to the lower end side in the longitudinal direction on the inner side with a certain distance from the arc-shaped corners connecting the front cover and the back cover,
The hole edges of the plurality of through holes are arranged in a straight line in the height direction of the spine cover, and one shape retaining portion is formed on the hole edge on the front cover side of the plurality of through holes . The other shape retaining part is formed at the hole edge on the back cover side,
Between the plurality of through-holes, there is a belt-like erection connecting portion erected between the one shape retaining portion and the other shape retaining portion between the inner side of the front cover and the inner side of the back cover. Formed,
In the intermediate region in the width direction, a curved portion having a constant width that is continuous in the height direction is formed,
The curved portion is between shape retention of the shape retaining part and the back cover side of the front cover side, between the front cover side of the hole edge and the back cover side hole edge is constituted,
The holding sheet is placed at the edge on the back cover side at an interval corresponding to the thickness of the sandwiched body at the connecting portion formed between the inner side of the front cover and the inner side of the back cover. A spine cover portion, in which a curved portion having a constant width in the height direction is formed in an intermediate region in the width direction of the file cover body by heat-welding the connecting portion of the holding sheet to the curved portion. Have
The Fukumuwan curved portion the bridging connecting portion and the connecting portion is generally softer configuration than the shape-retaining portion of the shape-retaining portion and the back cover side of the front cover side,
When the sandwiched sheet is sandwiched, the connecting portion of the sandwiched sheet is oriented so as to maintain the shape of sandwiching the sandwiched body between the opposing surfaces of the sandwiched sheet placed side by side and toward the side where the sandwiched sheet extends. with the shape retention to be maintained the Tewan song shape, when opening the front cover and back cover, the distance between the front and back cover shrinks further toward the extending direction of Hokyo sheet It is formed to bend and bend in an arch shape,
When the sandwiched body is sandwiched, the bent portion is bent toward the side where the sandwiched sheet extends so that the sandwiched body is held between the opposing surfaces of the sandwiched sheets arranged side by side. with the shape retention to be maintained the shape, when opening the front cover and back cover are around the inner edge of one of the shape-retaining portion and the other of the shape retaining part over the shape-retaining force, Hokyo sheet It is formed so as to bend further in an arched shape toward the extending direction,
The holding sheet is
When sandwiching the sandwiched body, the sandwiched body is formed between the adjacent holding sheet in the region of the connecting portion and is in contact with the surface of the sandwiched body in the region protruding from the connecting portion. ,
A file formed such that when the sandwiched body is removed, the space between the adjacent holding sheets in the region of the connecting portion is widened so that the sandwiched body can be sandwiched and removed by a fingertip. A spine cover, a front cover formed continuously on one side in the width direction of the spine cover, and a back cover formed continuously on the other side in the width direction of the spine cover. A file in which holding sheets sandwiching the body are fixed side by side,
The spine is connected to the front and back covers through arc-shaped corners,
The spine cover is formed with one shape retaining portion on the front cover side and the other shape retaining portion on the back cover side inside the arc corner.
The holding sheet has a first holding sheet and a second holding sheet,
The first sandwich sheet has a rectangular sandwich sheet portion and a welded connecting body formed between the end portion of the sandwich sheet portion and the inside of the spine cover and the end portions of the plurality of second sandwich sheets. And
The welded connection body has substantially the same width as the width of the spine, and is welded to the one shape retaining portion and the other shape retaining portion inside the spine cover,
The welded connecting member, when the shape retention to be maintained the shape Hokyo the the held member between opposing surfaces of Hokyo sheet aligned when sandwiching the the held body, that and removing the Hikyotai is coercive It is formed flexibly so that it is bent toward the side where the sandwich sheet extends,
The spine cover has a spine cover part in which a curved part having a constant width is formed in the middle region in the width direction, and a holding sheet is fixed to the curved part.
The holding sheet is configured to form a curved portion with an interval corresponding to the thickness of the object to be sandwiched and connected to each other at the edge of the spine cover side by side by heat welding.
The spine cover part is thermally welded to the connecting part of the holding sheet to the welded joint between the inner side of the front cover and the inner side of the back cover, in the middle direction in the width direction of the file cover body, in the height direction A curved portion having a constant width is formed continuously, and a spine portion is formed.
The holding sheet is
When sandwiching the sandwiched body, hold the sandwiched body between the other adjacent holding sheets in the region of the welded coupled body, and touch the surface of the sandwiched body in the region protruding from the welded coupled body. Formed,
A file formed so that when the object to be clamped is removed, the gap between the adjacent holding sheet in the region fixed to the welded connecting body is widened and the object to be clamped can be held and removed by a fingertip.   The front cover is configured as a cover with a narrower width than the back cover, and the index formed on the side edge of the holding sheet can be viewed from the front cover side even when the cover is closed. The file according to any one of claims 1 to 3, wherein the file is provided. The holding sheet connecting portion or welded connecting body is:
Connected to the front cover at one end in the width direction and connected to the back cover at the other end in the width direction to constitute the cover body of the file forming the spine cover part,
Connected between the inner side of the front cover and the inner side of the back cover, a curved portion having a constant width in the middle in the width direction of the file cover body is formed and closed. It is configured so that the width of the curved portion is shorter than the distance between the inner surface of the cover and the inner surface of the back cover,
When sandwiching the the held member is shape retention to be maintained a shape curved toward the side opposite to the planar or Nobiru side or Nobiru side Hokyo sheet Hokyo sheet, and the front cover and back cover The file according to any one of claims 1 to 4, wherein the file is formed so as to bend in a direction in which the holding sheet extends when opening. Between the back cover and the front cover and between the back cover and the back cover, a hinge groove is formed from the upper end to the lower end of the cover,
Inside the groove is formed a shape retaining portion on the front cover side and a shape retaining portion on the back cover side,
The file according to any one of claims 1 to 5, wherein another hinge groove is formed from the upper end to the lower end of the front cover and the back cover in parallel with the hinge groove at a distance from the hinge groove. . A spine cover, a front cover formed continuously on one side in the width direction of the spine cover, and a back cover formed continuously on the other side in the width direction of the spine cover. A method of manufacturing a file in which holding sheets sandwiching the body are fixed side by side,
A plurality of through-holes are formed so as to be arranged from the upper end side to the lower end side in the longitudinal direction on the inner side at a certain distance from the corner portion connecting the front cover and the back cover,
Hole edge of the plurality of through holes, in the height direction of the spine, aligned in a straight line, and the inside of the arcuate corner portions, one shape-retaining portion in the front cover side of the hole edge of the plurality of through holes Formed, the other shape retaining portion is formed at the hole edge on the back cover side of the plurality of through holes,
Between the plurality of through-holes, a belt-like erection connecting portion is formed between the one shape retaining portion and the other shape retaining portion between the inner side of the front cover and the inner side of the back cover. Prepared back cover,
A welding step in which the holding sheets are connected to each other at the edge of the spine cover side by side with a distance corresponding to the thickness of the sandwiched body, and are connected by heat welding to form a connecting portion;
The erection connecting portion and / or shape retention portion is formed between the inner of the inner and back cover of the front cover, the Hokyo sheet, at intervals corresponding to the thickness of the Hikyotai, spine side the connecting portion of the Hokyo sheet at the edge is thermally welded, the shape retention as maintain the shape for holding the clamping member between opposing surfaces of Hokyo sheet aligned when sandwiching the the held body And, when removing the to-be-clamped body, a curved portion forming step of forming a curved portion flexibly formed in the spine cover region so as to bend toward the side where the holding sheet extends, and
A back cover forming step of continuously providing a front cover and a back cover through the arc-shaped corners on the spine cover,
The curved portion is between shape retention of the shape retaining part and the back cover side of the front cover side, between the front cover side of the hole edge and the back cover side hole edge is constituted,
The spine portion is configured such that the width of the curved portion is shorter than the distance between the inner surface of the closed front cover and the inner surface of the back cover,
The curved portion, when sandwiching the the held member is shape retention to be maintained planar shape, and when opening the front cover and back cover, to curved in the direction of extension of Hokyo sheet Formed into
The holding sheet is
When sandwiching the sandwiched body, the sandwiched body is formed between the adjacent holding sheet in the region of the connecting portion and is in contact with the surface of the sandwiched body in the region protruding from the connecting portion. ,
When removing the object to be clamped, a file is formed so that the space between the adjacent holding sheet in the region fixed to the connecting portion is widened, and the object to be clamped can be held and taken out with a fingertip. , File manufacturing method. A spine cover, a front cover formed continuously on one side in the width direction of the spine cover, and a back cover formed continuously on the other side in the width direction of the spine cover. A method of manufacturing a file in which holding sheets sandwiching the body are fixed side by side,
A plurality of through holes are formed so as to be arranged from the upper end side in the longitudinal direction to the lower end side,
Hole edge of the plurality of through holes, in the height direction of the spine, aligned in a straight line, and shape-retaining portion of the hand to the front cover of the side hole edge of the plurality of through holes are formed, a plurality of through-holes shape retention portion of the other side is formed on the back cover side hole edge,
Between the through holes, between the inside of the front cover and the inside of the back cover, a belt-like erection connecting portion is formed between the one shape retaining portion and the other shape retaining portion,
In the middle region in the width direction, prepare a spine that is formed with a curved portion of a certain width continuous in the height direction,
A welding step in which the holding sheets are connected to each other at the edge of the spine cover side by side with a distance corresponding to the thickness of the sandwiched body, and are connected by heat welding to form a connecting portion;
The erection connecting portion and / or shape retention portion is formed between the inner of the inner and back cover of the front cover, the Hokyo sheet, at intervals corresponding to the thickness of the Hikyotai, spine side the connecting portion of the Hokyo sheet at the edge is thermally welded, the shape retention as maintain the shape for holding the clamping member between opposing surfaces of Hokyo sheet aligned when sandwiching the the held body And, when removing the sandwiched body, including a curved part forming step of forming a curved part flexibly formed in the spine cover region so as to bend toward the side where the holding sheet extends,
The curved portion is between shape retention of the shape retaining part and the back cover side of the front cover side, between the front cover side of the hole edge and the back cover side hole edge is constituted,
The curved connecting portion including the erection connecting portion and the connecting portion is configured to be generally softer than the one shape retaining portion and the other shape retaining portion,
The sandwiching sheet connecting portion is generally more flexible than the front cover and the back cover, and when sandwiching the sandwiched body, maintains the shape of sandwiching the sandwiched body between the opposing surfaces of the sandwiching sheets arranged side by side. with the shape retention to be maintained a curved shape in and towards the Nobiru side of Hokyo sheet as, when opening the front cover and back cover, the distance between the front and back cover Is shrunk, further bent in the direction of the holding sheet and bent to form an arch,
When the sandwiched body is sandwiched, the bent portion is bent toward the side where the sandwiched sheet extends so that the sandwiched body is held between the opposing surfaces of the sandwiched sheets arranged side by side. with the shape retention to be maintained the shape, when opening the front cover and back cover are around the inner edge of one of the shape-retaining portion and the other of the shape retaining part over the shape-retaining force, Hokyo sheet It is formed so as to bend further in an arched shape toward the extending direction,
The holding sheet is
When sandwiching the sandwiched body, the sandwiched body is formed between the adjacent holding sheet in the region of the connecting portion and is in contact with the surface of the sandwiched body in the region protruding from the connecting portion. ,
When removing the object to be clamped, a file is formed so that the space between the adjacent holding sheet in the region fixed to the connecting portion is widened, and the object to be clamped can be held and taken out with a fingertip. , File manufacturing method. A spine cover, a front cover formed continuously on one side in the width direction of the spine cover, and a back cover formed continuously on the other side in the width direction of the spine cover. A method of manufacturing a file in which holding sheets sandwiching the body are fixed side by side,
Prepare a spine cover in which one shape-retaining part on the front cover side and the other shape-retaining part on the back cover side are formed inside the arc-shaped corners connected to the front cover and the back cover,
A first holding sheet and a second holding sheet;
The first sandwich sheet has a rectangular sandwich sheet portion and a welded connecting body formed between the end portion of the sandwich sheet portion and the inside of the spine cover and the end portions of the plurality of second sandwich sheets. And
The welded connection body prepares a holding sheet having substantially the same width as the width of the spine,
A welding step in which the holding sheet is welded and connected to the welded connecting body alongside each other at the edge on the spine cover side at an interval corresponding to the thickness of the sandwiched body;
Are shape retention to be maintained the shape for holding the clamping member between opposing surfaces of Hokyo sheet aligned when sandwiching the the held body, and when removing the can Hikyotai, toward the Nobiru side of Hokyo sheet A curved portion forming step of forming a curved portion flexibly formed to bend in the spine cover region;
The welding connection member, and a welding connection body welding step of welding the shape retention portion and the other of the shape retaining portion of the one,
The spine cover has a spine cover part in which a curved part having a constant width is formed in the middle region in the width direction, and a holding sheet is fixed to the curved part.
The holding sheet is configured to form a curved portion with an interval corresponding to the thickness of the object to be sandwiched and connected to each other at the edge of the spine cover side by side by heat welding.
The spine cover part is thermally welded to the connecting part of the holding sheet to the welded joint between the inner side of the front cover and the inner side of the back cover, in the middle direction in the width direction of the file cover body, in the height direction A curved portion of a certain width that is continuous with
The holding sheet is
When sandwiching the sandwiched body, the sandwiched body is held between the adjacent holding sheet in the region fixed to the welded coupled body, and is in contact with the surface of the sandwiched body in the region protruding from the welded coupled body. Formed to fit,
When removing the sandwiched body, the space between the adjacent holding sheet in the region fixed to the welded connecting body is widened, and the file is formed so that the sandwiched body can be pinched with the fingertip and taken out. How to make a file. The erection connecting part formed between the inside of the holding sheet and the front cover and the inner side of the back cover is a thermoplastic synthetic resin sheet, and the edge of the holding sheet is thermally melted and fixed to the erection connecting part. And
The bent portion is formed by bending the region of the connecting portion of the holding sheet and the installation connecting portion simultaneously or after the edge of the holding sheet is thermally melted. How to make the file.

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