JP5283450B2 - Paper folding machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper folder and a method of winding and folding paper capable of providing a smooth fold by which a fold line is not formed and of easily winding and folding paper even by manual operation. <P>SOLUTION: This paper folder 1 is used for winding and folding paper in such a manner that all of one surfaces of the folded paper 9 are valley-folded. The paper folder includes a cylindrical body 2 at least the ceiling side end surface 41 of which is opened, in which the paper can be stored in a rounded state, and which is allowed to crush in the peripheral surface 21 thereof in the side direction of the paper folder. The paper folder can form a fold on the paper at a predetermined position by crushing in the cylindrical body in the side direction of the paper folder after the paper 9 is put in the cylindrical body and rounded. Consequently, the paper can be wound and folded. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a paper folding device for winding paper. More specifically, the present invention relates to a paper folding device that can be used to form a gentle crease in which a crease line is not formed in addition to a normal fold, and can easily fold a sheet manually.

As one of the methods for folding printed materials such as gift catalogs, brochures, and product catalogs, as shown in FIGS. 6 and 7, the sheet 9 is folded in order from the end to form a valley-folded fold 91 on the surface. There are winding folds that can be formed. In addition, it is required that the paper used for cataloging gifts should be folded using a donation paper so as not to make a clear crease.
It is difficult to perform such folding of the paper without any deviation in the position and direction of the fold. In addition, it is complicated to manually fold the paper repeatedly, which places a burden on the fingertips and the like.
Furthermore, a paper folding device has been proposed that can crease a fixed position when folding paper manually and can reduce the burden on the operator (see, for example, Patent Documents 1 and 2). .
The paper folding device disclosed in Patent Document 1 is a paper folding device in which a fold is formed on a sheet by passing the folded sheet between two rollers.
The paper folding device of Patent Document 2 is a sheet provided with a fold, and is a paper folding device that folds a sheet by overlapping the sheet and the paper and bending the sheet along the crease of the sheet.

Japanese Utility Model Publication No. 04-125269 JP-A-10-129925

However, Patent Document 1 and Patent Document 2 are paper folding devices for folding and folding, respectively, and winding and folding have not been sufficiently studied. In addition, the size of the target paper is only one type and cannot be used for different numbers of folds such as four folds. Furthermore, these are paper folding devices for forming a clear linear crease, and are not suitable for applications in which a crease is not formed, such as a gift inventory.
The present invention solves the above-described conventional problems. In addition to a normal crease, the present invention can provide a gentle crease that does not form a crease line, and can easily fold a sheet by hand. The purpose is to provide a paper folding device.

The paper folding device is as follows.
1. It is a paper folding device for performing folding in which one side of the folded paper is all valley-folded, the ceiling side end face is at least open, and the paper can be accommodated inside in a rolled state, and a peripheral surface provided with a cylindrical body that can be crushed in the side surface direction of the sheet folding device, are formed on the ceiling side and / or bottom side of the cylindrical body, the paper accommodated in the tubular body further comprising an end portion assortment portion for aligning the ends, and the cylindrical body, and four rectangular plates which cross-sectional shape are arranged such that the cylinder is square, adjacent the rectangular A paper folding device comprising: a shaft that rotatably connects the long side end portions of the plate with the direction of the long side as an axis.
2 . 1. The above-described 1., Wherein the cylindrical body is further provided with an elastic member that urges the cylindrical body to return from the crushed state to the cylindrical state. The paper folding device described.
3 . The 1, further comprising a paper insertion port provided along the long side edge portion of one of said rectangular plate. Or 2 above. The paper folding device described.
4 . 3. The above-mentioned 3. further comprising a guide portion provided on the inner peripheral surface of the cylindrical body and deformed in accordance with the deformation of the cylindrical body. The paper folding device described.
5 . The 3 comprising an end portion assortment port for inserting a jig for aligning the ends of the sheets are inserted into the cylindrical body further rectangular plate adjacent to said sheet insertion opening. Or 4 above. The paper folding device described.
6 . The intermediate portion includes two rod-like bodies fixed to each other so as to be rotatable, and one end portion of each rod-like body is provided on the circumferential surface facing the cylindrical body, and the other side of each rod-like body The above-described 1. further comprising a gripping hand movable so as to crush the peripheral surface by gripping the end portion. To 5 above. The paper folding device according to any one of the above.

  According to the paper folding device of the present invention, after the paper is put in the cylindrical body and rolled up, the cylindrical body is crushed in the side direction of the paper folding device to form a crease at a predetermined position of the paper. be able to. Further, the folding is not limited to winding with a clear crease, and a gentle crease that is more difficult to position can be formed without being displaced. The reason why the crease can be formed without being displaced is that the crease can be formed by crushing the rolled paper. Further, various numbers of folds can be formed by putting sheets of various lengths into a cylindrical body and crushing them.

In addition, when the end portion aligning portion is further provided, the end aligning portion can press the paper against the bottom surface side with a jig to align the end portion, so that a more accurate crease can be formed.
Furthermore, when the cross-sectional shape is a quadrangular cylindrical body, it is easy to configure the paper folding device using a metal plate and a hard resin plate, and the paper folding device can be easily manufactured. it can.
Further, when the elastic member is provided on the cylindrical body, the shape of the cylindrical body is restored to the original by the elastic member when the force to crush the peripheral surface of the cylindrical body is lost, so that the paper is placed in the cylindrical body. It is easy to insert the sheet, and the creased sheet can be easily taken out from the cylindrical body.
Furthermore, when the paper insertion opening is provided along the long side end of one rectangular plate, it is easy to insert the paper into the cylindrical body, and the paper insertion port is inserted into the cylindrical body. Since the paper rolls around the cylindrical body along the inner circumferential surface of the cylindrical body, even if the paper is soft, it can be rolled in a state of being expanded in the cylindrical body. It is easier to form a crease at a different position.
Further, when the guide portion is further provided, even when the paper is inserted into the cylindrical body from the paper insertion port, the paper is prevented from being caught on the inner wall of the cylindrical body and the paper cannot be stored in the cylindrical body. Can do.
Furthermore, when the edge aligning port is further provided, after the paper is inserted into the cylindrical body, it can be aligned by pushing the end of the sheet using a jig or the like from the end aligning port. Can be formed.
In addition, when the hand grip is further provided, the cylindrical body can be crushed by gripping the hand grip, so that it becomes easier to form a crease in the paper by hand using a paper folding device.

When the paper is folded using the paper folding device of the present invention, a crease can be formed at a predetermined position of the paper. Further, since the crease can be formed by crushing the paper, a clear crease can be formed, and a gentle crease can be formed. Furthermore, since necessary folds can be formed at a time, even when a gentle fold is formed which is more difficult to position, a fold can be formed at a fixed position.

Hereinafter, the paper folding device of the present invention will be described in detail with reference to FIGS.
The paper folding device of the present invention includes a cylindrical body that has at least an opening on the end surface on the ceiling side, can be accommodated inside in a rolled state, and can squeeze the circumferential surface in the side direction of the paper folding device. It is characterized by that.
The type of the “paper” that can be folded by the paper folding device is not particularly limited, and examples thereof include Japanese paper such as service paper and western paper such as plain paper copier paper (also referred to as PPC paper).

The “cylindrical body” is a cylindrical body having a size that allows the paper to be stored in a rolled-up state in the internal space. The cylindrical body has its peripheral surface crushed in the direction of the side surface of the paper folding device. That is, as illustrated in FIGS. 4 and 12, one portion 211, 241 of the peripheral surface 21, 24 is opposed to the opposite peripheral surface. By being crushed so as to approach 212 and 242, the paper 9 stored inside can be folded to form a crease. As illustrated in FIG. 5, such a fold is a “valley fold” in which when the sheet 9 on which the fold is formed is spread so that the outer peripheral side is the lower side, the corners of all the folds face downward. Note that the paper on which the crease is formed can be taken out from the opening end surface on the ceiling side, but is not limited thereto, and can be taken out by any means.
Further, the size of the cylindrical body is appropriately selected according to the size of the paper to be folded and the number of windings. This is because the sheet is rounded along the inner periphery of the cylindrical body, so that the length of the state in which the cylindrical body is crushed becomes the interval between winding and folding.
The material of the cylindrical body is not particularly limited to metal and resin. In the case of a hard material that is not easily crushed, as shown in FIG. 4, a cylindrical plate 2 and a cylindrical body 2 are accommodated in the shaft 22 by rotating a rectangular plate 21 that is a peripheral surface. The paper 9 can be crushed. In the case of a soft material that can be bent by crushing, as shown in FIG. 12, the cylindrical body can be crushed by bending the peripheral surface itself to form a crease in the paper.
The cross-sectional shape of the tubular body is not particularly limited, and examples thereof include a quadrangular shape (see, for example, FIG. 1), a circular shape (see, for example, FIG. 10), a hexagonal shape, and the like.

The method by which the cylindrical body can be crushed is not particularly limited. For example, as illustrated in FIG. 1, each rectangular plate 21 constituting the peripheral surface can be rotated by an axis 22 parallel to the axis of the cylindrical body. A method of crushing the cylindrical body as shown in FIG. Further, as illustrated in FIGS. 10 and 12, a method of crushing a cylindrical body having flexibility can be mentioned.
Furthermore, a means for crushing the cylindrical body can be arbitrarily selected. For example, as illustrated in FIG. 8, the cylindrical body includes two rod-like bodies 71 that are rotatably fixed to each other with the intermediate portion serving as a fulcrum 72. One hand end 73 of each rod-shaped body 71 is provided on the opposing circumferential surface 21 of the cylindrical body 2, and a gripper that moves so as to crush the circumferential surface 21 by gripping the other end 74 of each rod-shaped body 71. 7 and pressing the cylindrical body 2 with a lever by the gripping hand 7 can be mentioned. Further, it is possible to exemplify crushing the cylindrical body directly by hand, crushing using the power of a motor or the like.
In addition, when crushing a cylindrical body, when not crushing all the site | parts in which a fold is formed, a gentle crease can be formed. Moreover, when all are crushed and closely_contact | adhered, the crease | fold which a crease line is formed can be formed.

  Furthermore, the means for returning the crushed cylindrical body to its original shape can be arbitrarily selected. For example, adjacent circumferential surfaces on which elastic members are provided using the elasticity of the “elastic member” such as a spring. 21 is expanded (for example, see FIGS. 4 and 5), the restoring force due to the elasticity of the cylindrical body itself (for example, see FIGS. 10 and 12), the peripheral surface of the cylindrical body is pulled using any means, etc. Can be mentioned.

  The “end alignment part” can be formed at the end of the cylindrical body on the ceiling surface side and / or bottom surface side, and before the crushing the cylindrical body to form a crease in the paper, Used to align edges at the same position. The edge aligning section can be arbitrarily selected, and is an aligning jig for pressing and aligning the end of the paper (for example, an end aligning section which is a rod-shaped body penetrating the cylindrical body illustrated in FIG. 9) 52). Also, a pressing jig that presses the paper against the aligning jig or a plate-like body that closes the bottom opening of the cylindrical body prepared separately is inserted into the cylindrical body to reach the end of the paper. A recessed portion (for example, a concave-shaped end aligning portion 51 larger than the pressing jig 8 shown in FIG. 3 can be cited). Further, the pressing jig inserted into the end alignment portion only needs to be able to press the paper, and a rod-like body, a finger, or the like can be used. Note that the concave end alignment portion 51 shown in FIG. 3 can also be used to pick up the paper when taking out the paper in the cylindrical body.

The cylindrical body can further be provided with a paper insertion opening. For example, as illustrated in FIG. 1, the cylindrical body has four rectangular plates 21 arranged so as to form a cylinder having a quadrangular cross-sectional shape, and an end portion on the long side of the adjacent rectangular plates 21. In the case of including the shaft 22 that is connected to each other so as to be rotatable about the direction of the long side, the paper insertion port 4 can be provided along the long side end of the rectangular plate.
The “paper insertion port” is an opening used when inserting paper into the cylindrical body, and an arbitrary number can be provided at an arbitrary place. For example, as illustrated in FIG. 1, it is possible to provide a paper insertion opening 4 in which a slit-like opening that is long in the axial direction is formed on the peripheral surface 21 of the cylindrical body 2. Such a paper insertion slot 4 can be inserted into the paper insertion slot 4 without rolling the paper. Further, since the paper 9 is sequentially pushed into the cylindrical body 2, the paper 9 is rounded along the inner periphery of the cylindrical body 2.
Further, the ceiling side opening 41 that is one end surface of the cylindrical body 2 may be used as a paper insertion opening. Such a paper insertion slot is used to insert paper that has been previously rolled smaller than the inner diameter of the cylindrical body.

The above “guide part” can be slid and rolled without being caught on the inner periphery of the cylindrical body when the paper is inserted from the paper insertion opening provided on the peripheral surface of the cylindrical body. It is a guide to do. Such a guide portion can form a surface that eliminates a protrusion, a step, and the like that inhibit the sliding of the paper in the sliding direction when the paper is inserted.
Such a guide portion can be arbitrarily selected. For example, a sheet made of a resin or the like having a smooth flat surface on which a sheet can be easily slid can be provided inside the cylindrical body. Further, as illustrated in FIG. 10, the sheet may be slid using the peripheral surface 24 itself of the cylindrical body 2 a as the guide portion 3.
Moreover, a buffer part can be provided between the cylindrical body and the guide part. This “buffer portion” is selected from any material that deforms so that the sheet 9 is crushed by the guide portion 3 as illustrated in the buffer portion 31 of FIG. 4 when the side surface of the cylindrical body is crushed. It is an elastic body. As a result, a force for crushing the cylindrical body 2 is transmitted to the paper 9, and a necessary fold can be formed on the paper 9.

The “end alignment opening” is an opening formed in the cylindrical body for inserting a jig for aligning the edge of the paper inserted in the cylindrical body. The vertical side end of the sheet parallel to the axial direction of the cylindrical body (see the vertical side end 93 of the paper illustrated in FIG. 7) is pushed with a jig that is pushed in from the end alignment port, and the vertical side end Is aligned with the position of the end of the end aligning port (for example, the end 61 of the end aligning port 6 shown in FIG. 1). It becomes the same position, and the position and orientation of the paper can be aligned. As a result, the position where the fold line is formed can be determined, and a parallel fold line can be formed.
Such an end alignment port is an arbitrary number at a position where the vertical side end of the paper inserted into the cylindrical body 2 can be pushed, such as the end alignment port 6 shown in FIG. Can be provided. Moreover, the jig | tool inserted in an edge part alignment port should just be able to push a paper, and can use a rod-shaped body, a finger, etc.

The paper folding method by the paper folding device is as follows: (1) Insert the paper into the cylindrical body from the paper insertion port and roll it up, or insert the rolled paper from the paper insertion port into the cylindrical body,
(2) Thereafter, the peripheral surface of the cylindrical body is crushed in the direction of the side surface of the paper folding device to form a crease in the paper,
(3) Next, the sheet having the crease formed thereon is removed from the cylindrical body.

  The method of storing the paper in the cylindrical body can be selected arbitrarily. Insert the paper into the cylindrical body from the paper insertion opening without rolling the paper, and check that the paper is rounded along the inner peripheral surface of the cylindrical body. It may be rounded using. Moreover, you may insert the paper rolled up beforehand into a cylindrical body.

Hereinafter, the paper folding device and the paper folding method of this embodiment will be described in detail with reference to the drawings.
1. Configuration of the paper folding device As shown in FIGS. 1 and 2, the paper folding device 1 includes a tubular body 2 having a quadrangular cross-sectional shape, a guide portion 3 provided on the inner peripheral surface of the tubular body 2, and The buffer part 31 provided between the cylindrical body 2 and the guide part 3 and the edge part alignment part 51 currently formed in the ceiling surface side of the cylindrical body 2 are provided.
The cylindrical body 2 includes four metal rectangular plates 21 of the same size arranged so as to form a cylinder having a quadrangular cross-sectional shape, and the long side end portions of adjacent rectangular plates 21. And a shaft 22 formed of a hinge that is rotatably connected with the direction of the long side as an axis. Adjacent rectangular plates 21 are provided with elastic members 23 made of leaf springs, and are urged in a direction in which the cross-sectional shape is square.
As shown in FIG. 4, such a cylindrical body can crush the cylindrical body 2 in a direction in which the opposing corner portions 211 and 212 are close to each other. Furthermore, if the force which crushes the cylindrical body 2 is lost, it can return to the shape shown in FIG.

The guide portion 3 is formed by rolling a smooth resin plate into a substantially cylindrical shape, and the end portion of the paper 9 inserted from the paper insertion port 4 slides on the inner peripheral surface of the guide portion 3, so that the cylindrical body 2. It is provided so as to be rounded as shown in FIG. 1 without being caught inside.
The end alignment part 51 is a U-shaped recess, and is provided at the end of the two rectangular plates 21 facing each other on the ceiling surface side. Further, as shown in FIG. 3, by inserting a rod, a finger, or the like into the cylindrical body 2 as a pressing jig 8 so as to straddle the end alignment portions 51, the end of the paper 9 in the cylindrical body 2 The side end 92 can be aligned by pressing the portion toward the bottom and pressing it against a plate material or the like that closes the bottom side opening 42 of the cylindrical body 2. In addition, although the edge part alignment part 51 in a present Example is provided in the rectangular plate 21 located in the left-right direction in FIG. 1, it is not restricted to this, You may provide in the rectangular plate 21 located in an up-down direction, You may provide in all the rectangular plates 21. FIG. Further, the pressing jig 8 is not limited to being inserted into the cylindrical body 2 so as to straddle the end alignment portions 51, but may be inserted into the cylindrical body 2 via one end alignment portion 51. .
Further, as shown in FIGS. 1 and 2, one rectangular plate 21 has a paper insertion opening 4, which is a slit-like opening having a length of the width of the paper, at the end on the long side of the rectangular plate 21. Are formed along.
The rectangular plate 21 adjacent to the rectangular plate 21 in which the paper insertion port 4 is provided is provided with two end alignment ports 6 so as to be adjacent to the paper insertion port 4. These end alignment holes 6 can be inserted with a rod, finger or the like as a holding jig, and are connected to the end of the sheet 9 parallel to the longitudinal direction of the cylindrical body 2 (vertical end 93 in FIG. 7). It can be aligned by pressing the holding jig.

2. A method for winding and folding the paper 9 using the paper folding device 1 having such a configuration will be described.
(1) First, the paper 9 is inserted from the paper insertion opening 4, and the paper 9 is stored in a rounded state in the cylindrical body 2 as shown in FIGS. By inserting the paper 9 from the paper insertion port 4, even if it is a soft paper, the paper is curled along the surface of the guide part 3 in the cylindrical body 2 and spread so that the paper sticks to the guide part Therefore, the position of the sheet 9 in the cylindrical body 2 is constant, and it becomes easier to form a crease at a predetermined position of the sheet.
(2) Then, the bottom side opening 42 of the cylindrical body 2 is closed with a plate material or the like, an alignment jig that can be inserted into the cylindrical body 2 is inserted, and then the pressing jig 8 is inserted as shown in FIG. The lateral end portions 92 are aligned by inserting the end portions 51 into the cylindrical body 2 and pressing the lateral end portions 92 of the paper 9 in the tubular body 2 against the bottom surface side.
Further, by inserting a pressing jig from the end alignment port 6 and pressing the end of the sheet 9 parallel to the longitudinal direction of the cylindrical body 2 (vertical end 93 in FIG. 7), the cylinder The position of the vertical end 93 of the paper 9 in the sheet 2 is aligned with the end 61 of the end aligning opening 6 close to the paper insertion opening 4.

(3) Next, as shown in FIG. 4, the cylindrical body 2 is crushed by applying a force in a direction in which the opposing corner portions 211 and 212 are close to each other. At this time, the guide unit 3, the buffer unit 31, and the paper 9 are also crushed, and a crease is formed in the paper 9. In the case of forming a gentle crease, the cylindrical body 2 is not crushed until the corners 211 and 212 come close to each other, but the cylindrical body 2 is crushed to the extent that the crease is formed on the paper 9.
(4) After that, the force applied to the cylindrical body 2 is eliminated, and the cylindrical body 2 is returned to its original shape by the elastic member 23 as shown in FIG. 5, and is bent from the ceiling side opening 41 shown in FIG. 9 is taken out. At this time, the paper 9 can be easily taken out by picking the paper 9 located in the end alignment part 51.
As shown in FIG. 6, the taken-out paper 9 is wound and folded, and as shown in FIG. Is formed.
As described above, the paper folding device 1 according to this embodiment can form the crease 91 at a predetermined position of the paper 9. Further, since the paper 9 can be inserted into the cylindrical body 2 without clogging by the guide portion 3 and can be rolled up so as to stick to the guide portion 3, the paper 9 is not displaced. Furthermore, it is easy to align the lateral end 92 of the paper 9 by the pressing jig 8 by the end aligning portion 51. In addition, the position of forming the crease 91 of the paper 9 can be set to a predetermined position by the end alignment port 6, and the parallel crease 91 can be formed. As a result, necessary creases 91 can be formed at a time, and even when the gentle creases 91 are formed, the creases 91 can be formed at fixed positions.

3. Other Embodiments In the present invention, the present invention is not limited to those shown in the above embodiments, and various modifications can be made within the scope of the present invention depending on the purpose and application.
(1) For example, as shown in FIG. 8, a paper folding device 1 a including two rod-like bodies 71 and a fulcrum 72 that is provided at an intermediate portion of each rod-like body 71 and is rotatably fixed to each other. Can do. Further, one end portion 73 of each rod-like body 71 is attached to the opposite corner portions 211 and 212 of the cylindrical body 2, and the other end portion 74 is provided with a grip for easy gripping. Further, both end portions 73 are urged so as to expand by an elastic member 75 which is a leaf spring provided between the rod-like bodies 71.
Since such a paper folding device 1a can easily crush the cylindrical body 2 by grasping the grip of the other end 74, a crease 91 is formed on the paper 9 by hand using the paper folding device 1a. It will be easier to do. Further, when the grip of the other end 74 is released after being crushed, the elastic member 75 returns to the original state, so that the next crease can be easily formed.

(2) Further, as shown in FIG. 9, a paper fold is provided in which an end alignment portion 52 of a rod-shaped body that is an end alignment portion is provided at the end of the bottom surface side opening 42 of the cylindrical body 2 so as to cross the bottom surface. It can be set as the vessel 1b. The end aligning portion 52 passes through holes provided in two adjacent rectangular plates 21, and the end portion is connected to and integrated with the other end aligning portion 52. Further, the end portion aligning portion 52 is provided so that the lateral end portion 92 of the sheet 9 in the cylindrical body 2 comes into contact. Further, since the hole is sufficiently larger than the diameter of the end portion aligning portion 52, the hole and the end portion aligning portion 52 are not hindered by being caught when the cylindrical body 2 is crushed.
Such a paper folding device 1 b can align the lateral end portions 92 by pressing the lateral end portions 92 of the paper 9 in the cylindrical body 2 against the end alignment portion 52.

(3) Moreover, as shown in FIG. 10, it can be set as the paper folding machine 1c which comprises the substantially cylindrical cylindrical body 2a provided with the peripheral surface 24 using the material which is easy to bend, such as resin. Furthermore, since the inner surface of the peripheral surface 24 is smooth, it also functions as the guide portion 3. Further, as shown in FIG. 11, the peripheral surface 24 is provided with a portion cut in the axial direction of the cylinder, and the folded paper 9 can be easily taken out.
In such a paper folding device 1c, as shown in FIG. 12, after fixing the cut portion with the holding tool 25, the cylindrical body 2a is crushed and bent, thereby forming a crease 91 in the paper 9 stored therein. Can be formed.

(4) The paper folding device is not limited to manual folding and can be used for automatic paper folding.
For example, in the paper folding device 1 shown in FIGS. 1 and 2, a paper supply device for inserting paper 9 into the cylindrical body 2 from the paper insertion opening 4, the shaft 22 is pushed and the cylindrical body 2 is crushed as shown in FIG. A crushing device and a discharge device that pushes the paper 9 folded from the ceiling side opening 41 of the cylindrical body 2 and discharges it from the bottom side opening 42 of the cylindrical body 2 are provided, and these devices are operated sequentially. Thus, paper folding can be repeated. Note that the discharge device may push the paper 9 folded from the bottom side opening 42 of the cylindrical body 2 and discharge it from the ceiling side opening 41 of the cylindrical body 2.

It is the model perspective view seen from the ceiling side for demonstrating the structure of the paper folding device of a present Example. It is the model perspective view seen from the bottom face for demonstrating the structure of the paper folding device of a present Example. It is a model perspective view for demonstrating a mode that the press jig | tool is inserted in a paper folding machine and the edge part of a paper is arrange | equalized. It is a schematic plan view for demonstrating a mode that the paper is put into a paper folding device and the fold is formed. It is a schematic plan view for demonstrating a mode that the cylindrical body was returned to the original after forming a crease | fold. FIG. 6 is a partially enlarged schematic perspective view for explaining a crease of the rolled paper. It is a schematic perspective view showing the state which unfolded the rolled paper. It is a schematic plan view for demonstrating the paper folding device which comprises a grip hand. It is a model perspective view for demonstrating the paper folding machine which comprises a rod-shaped edge part alignment part. It is a model perspective view for demonstrating a paper folding device provided with a substantially cylindrical cylindrical body. It is a model perspective view for demonstrating a mode that the substantially cylindrical cylindrical body is opened and the paper is put. It is a schematic plan view for demonstrating the state which crushed the paper folding device provided with a substantially cylindrical cylindrical body.

Explanation of symbols

  1, 1a, 1b, 1c; paper folding device, 2, 2a; cylindrical body, 21; rectangular plate (peripheral surface), 22; shaft, 23, 75; elastic member, 24; peripheral surface, 25; 3; Guide part, 31; Buffer part, 4; Paper insertion opening, 41; Ceiling side opening part, 42; Bottom side opening part, 51, 52; End part aligning part, 6; End part aligning part, 7; 8; pressing jig, 9; paper, 91; crease.

Claims (6)

A paper folding device for performing a folding process in which one side of the folded paper is a valley fold,
A cylindrical body that has at least a ceiling-side end face, can be accommodated inside in a state in which the paper is rolled up, and can squeeze the peripheral surface in the lateral direction of the paper folding device ;
The apparatus further comprises an end aligning part for aligning the end of the paper stored in the cylindrical body, which is formed on the ceiling side and / or the bottom surface side of the cylindrical body ,
The cylindrical body has four rectangular plates arranged so as to form a cylinder having a quadrangular cross section, and the long side ends of the adjacent rectangular plates as the long side direction as an axis. A paper folding device comprising: a shaft that is rotatably connected. Paper folding device according to claim 1, wherein the elastic member for biasing to return to the state of the cylinder from the state of being crushed the tubular body is further provided on the tubular body. The paper folding device according to claim 1 or 2 , further comprising a paper insertion opening provided along a long side end of the rectangular plate. The paper folding device according to claim 3 , further comprising a guide portion provided on an inner peripheral surface of the cylindrical body and deformed in accordance with the deformation of the cylindrical body. The paper folding device according to claim 3 or 4 , further comprising an end aligning hole for inserting a jig for aligning the end of the paper inserted into the cylindrical body, on a rectangular plate adjacent to the paper inserting opening. . The intermediate portion includes two rod-like bodies fixed to each other so as to be rotatable, and one end portion of each rod-like body is provided on the circumferential surface facing the cylindrical body, and the other side of each rod-like body The paper folding device according to any one of claims 1 to 5 , further comprising a gripping hand movable so as to squeeze the peripheral surface by gripping the end portion.

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