JP2007175874A - Paper staple, clincher for paper staple and document binding method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make an adhesive unnecessary, realize the easy removal of a paper staple and, at the same time, the smooth recycling work of a document. <P>SOLUTION: An engaging hole 25 is formed on one side leg part 20 of the paper staple 11, on the other side leg part 21 of which a circular arcuate latching piece forming incised line 26 is provided. The tip side portion 43 of the other side leg part 21 is formed narrower in its width so as to bend the one side leg part 20 and the other side leg part 21 in the order named after the driving of both the side leg parts 20 and 21 of the paper staple 11 in the document P, resulting in binding the document P through the latching of the latching piece 27 and the narrow part 43 formed in the other side leg part 21 with both the side edge parts of the engaging hole 25 in the one side leg part 20. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper staple, a paper staple clincher device, and a document binding method, and in particular, after both side longitudinal pieces of a U-shaped paper staple are driven into a document, the longitudinal pieces are folded inward to form a document. The present invention relates to a paper staple, a paper staple clincher device, and a document binding method.

  Conventionally, since staples (needles) are made of metal, when a bound document is cut with a shredder, the cutting blade may be damaged if it is cut with the staples attached to the document. In addition, due to increased awareness of the environment, activities to recycle discarded documents from offices and the like have become widespread, and the number of users who remove needles is increasing in order to separate documents and needles at the time of disposal.

  If a dedicated remover or the like is used, the needle can be removed easily. However, the dedicated remover attached to the staple is difficult to remove at a time and requires a lot of labor for the needle removal operation. Further, since the tip of the metal staple is sharp, care must be taken in handling the staple during the operation.

In view of this, some apparatuses have been developed in which staples are produced from a paper material and the paper staples are passed through a document and bound. This apparatus comprises means for making a grooved punching hole in a desired location of a document, and means for feeding an adhesive tape to the punching hole and cutting it at a predetermined location. It is comprised so that it may affix and bind to (refer patent document 1).
JP 2004-34640 A

  According to the prior art described in Patent Document 1, since the paper staples are pasted using an adhesive, there is a problem that the removal of the paper staples is troublesome when the paper staples are removed. Further, since the adhesive has a strong adhesive force, it has a disadvantage that the strong adhesive force becomes an obstacle at the time of document recycling work, and the recycling work cannot be performed efficiently.

  Therefore, there is a technical problem to be solved in order to eliminate the need for adhesives, safely and easily remove paper staples, and to be able to recycle paper materials without any problems. The present invention aims to solve the problem.

  The present invention has been proposed to achieve the above object, and the invention according to claim 1 is a paper staple formed by folding a belt-like paper material into a U-shape, and the paper staple is A hook hole is opened in one vertical piece, the other vertical piece is provided with a substantially arc-shaped cut line for forming a hook piece, and the tip of the other vertical piece is formed with a narrow width. Paper staples are provided.

  According to this configuration, after the U-shaped paper staple is driven into the document, the one vertical piece and the other vertical piece are sequentially bent inward. At that time, the other vertical piece is moved to a position just below the engaging hole of one vertical piece while sandwiching the lower part of the cut line. Then, a substantially arc-shaped latching piece is cut and raised along the cut line, and the upper end portion of the latching piece is inserted into the engagement hole.

  After that, the narrow portion of the other vertical piece is curved and deformed (half-rotation movement) to the engagement hole side, inserted into the engagement hole, and pushed up. As a result, the latching piece and the narrow width portion are pushed into the latching hole on one side peripheral edge and the other side peripheral edge so as to be separated from each other, and the document is stably bound.

  According to a second aspect of the present invention, there is provided a clincher device for clinching the longitudinal piece of the paper staple according to the first aspect, wherein the clincher device includes a movable substantially paddle-shaped cradle on which a document is placed, and the receiver. A first clincher that folds the one vertical piece of paper staple driven into the document on the table inward, and the one that is bent inward while sandwiching the other vertical piece of paper staple. The other vertical piece is moved to a position immediately below the engaging hole of the vertical piece, and the hanging piece is cut and raised along a substantially arc-shaped cut line. A paper clincher device for paper stapling, comprising: a second clincher that is curved in a substantially U shape toward the longitudinal piece side; and a pushing member that pushes the latching piece and the narrow portion into the engagement hole of the one longitudinal piece. To do.

  According to this configuration, both vertical pieces of paper staple are driven into a document on a substantially scalloped cradle while straddling the cradle. Next, after one vertical piece of paper staple is bent inward by the first clincher, the other vertical piece is clamped by the second clincher and moved to a position just below the engagement hole of one vertical piece. Then cut the latch piece. Thereafter, the narrow portion of the other vertical piece is inverted and curved in a substantially U shape on one vertical piece side and inserted into the engagement hole.

  Next, the hooking piece and the narrow portion of the other vertical piece are pushed into the hooking hole of the one vertical piece by the pushing member. Finally, retract the cradle to the outside of the document. As a result, the curved portion of the other vertical piece returns to the flat shape, and the document also returns to the original flat shape, so that the hooking piece and the narrow width portion are hooked on the peripheral edge portions of the hooking hole and are clinched. The

  According to a third aspect of the present invention, there is provided a document binding method using the paper staple according to the first aspect and the paper staple clincher device according to the second aspect. A step of driving the staple made in a state of straddling the cradle, a step of bending the one vertical piece of the paper staple by a first clincher, and the other vertical piece of the paper staple. In a state of being sandwiched by the second clincher, the step of moving the other vertical piece to just below the engagement hole of the one vertical piece to cut out the hooking piece, and the narrow portion of the one vertical piece by the second clincher A step of bending substantially U-shaped on one side, a step of pushing the hooking piece and the narrow portion into the hooking hole with a push-in member, and a step of retracting the substantially paddle-shaped cradle to the outside of the document. A document binding method characterized by To.

  According to this configuration, first, the U-shaped paper staple is driven into a document on the substantially cradle-shaped cradle so as to straddle the cradle. Next, after one vertical piece of the paper staple is bent inward by the first clincher, the position shifts to a position just below the engaging hole of one vertical piece while the other vertical piece is held by the second clincher. Then, the arc-shaped hooking piece is cut and raised along the cut line, and the upper portion of the hooking piece is inserted into the hooking hole of one vertical piece.

  Next, the second clincher is reversed to one of the vertical pieces while holding the lower portion of the hooking piece, and the narrow portion is bent into a substantially U shape and inserted into the hooking hole. Thereafter, the hooking piece and the narrow portion are pushed into the hooking hole by pushing the curved portion to the hooking hole side with the pushing member. Finally, when the cradle is retracted from the document, the curved portion returns to a flat shape. As a result, the latch piece and the narrow portion are separated from each other and latched on the peripheral edge portions on both sides of the latch hole, and the document is returned to a flat shape and bound.

  According to the first aspect of the present invention, the vertical pieces on both sides of the paper staple are driven and bent into the document, and the latching piece and the narrow portion of the other vertical piece are latched in the engaging holes of the other vertical piece, thereby Can be stapled stably, and when removing the staples, it is not necessary to remove the needle, and cutting with a shredder and recycling of resources become possible. Also, the paper staple can be easily removed with fingers. Furthermore, since no adhesive is used, resource recycling work can be performed easily and quickly.

  According to the second aspect of the present invention, since the latching piece and the narrow width portion of the other vertical piece of the paper staple are pushed into the latching hole of the one vertical piece, the paper staple is used without using an adhesive. Both vertical pieces can be reliably clinched. The clincher device of the present invention has a simple configuration and can be mass-produced at a low cost.

  According to a third aspect of the present invention, the latch piece cut and raised in the other vertical piece of the paper staple and the narrow portion curved and deformed in the U-shape are restored to a flat shape to restore the shape of the one vertical piece. Since it is latched at the peripheral edge portions on both sides of the latching hole, it is possible to reliably bind the document with paper staples, it is not necessary to use an adhesive, and the paper material can be easily recycled.

  An object of the present invention is to eliminate the need for an adhesive, to easily remove a paper staple, and to recycle a document without hindrance. One vertical piece (one side leg) of the paper staple is provided. And the other vertical piece (the other leg portion) of the paper staple is provided with a substantially arc-shaped (including substantially V-shaped) cut line for forming the latching piece. This is achieved by using a U-shaped paper staple in which the leading end of the vertical piece is formed with a narrow width.

  That is, according to the present invention, a step of driving a U-shaped paper staple on a document on a substantially kamaboko-shaped cradle in a state of straddling the cradle, and the one vertical piece of the paper staple is a first A step of bending inward with a clincher, and the other vertical piece of the paper staple is held by the second clincher, and the other vertical piece is moved to a position immediately below the engagement hole of the one vertical piece, and the holding piece A step of curving the narrow portion, a step of bending the narrow portion to one vertical piece side with a second clincher, and a step of pushing the latch piece and the narrow portion into the engaging hole by a pushing member; The above-mentioned object is achieved by including a step of retracting the substantially cradle-shaped cradle to the outside of the document.

  Hereinafter, a preferred embodiment of the present invention will be described with reference to FIGS. In this embodiment, in order to perform staple forward feeding, bending, cutting, driving, clinching and the like at a predetermined timing in relation to the staple driving operation, the driving means of each functional member, that is, a movement driving mechanism, a rotational driving Although a mechanism, a lift drive mechanism, and the like (not shown) are provided, a known drive method using a cam, a link, a spring, an electromagnet, or the like can be appropriately adopted as these drive methods.

FIG. 1 is a block diagram showing an overall configuration of a paper stapling stapler 1. The stapler 1 includes a sheet storage unit 2 in which a rectangular staple sheet 8 made of paper is loaded and stored, a transfer unit 3 that sequentially feeds the staple sheet 8 at a constant pitch, and a front end portion of the staple sheet 8 that is bent. A bent forming portion 4 for forming a U-shaped connected staple 9, a shearing portion 5 for cutting the connected staple 9 into a single paper staple 11 into which the connected staple 9 can be driven, and both leg portions (vertical pieces) of the paper staple 11. ) Through the document P, and a clincher unit (clincher device) 7 that clinches both leg portions of the paper staple 11 that has penetrated the document P.
A predetermined number of staple sheets 8 are stacked and stored in the sheet storage unit 2, and the staple sheets 8 are sequentially fed by the transfer unit 3 toward the bending unit 4 by predetermined steps. As the staple sheet 8, as shown in FIG. 2 (a), the adjacent crown portions 12 are connected to each other, more preferably, the perforation 13 is formed in the connected portion (FIG. 2 ( b)) Alternatively, it is preferable to use a slit 14 partially formed in place of the perforation 13 (FIG. 2C). In addition, the code | symbol 8a in FIG. 2 is a cut line.

  As shown in FIG. 3, the bending unit 4 is provided with a mounting table 15 on which the staple sheet 8 is placed. Above the mounting table 15, a bending mold 17 having a U-shaped molding surface 16 is raised and lowered. It is arranged to be possible. Therefore, after the staple sheet 8 is placed on the mounting table 15, when the bending mold 17 is lowered by the lift drive mechanism, both sides of the staple sheet 8 in the direction substantially perpendicular to the transfer direction are formed as shown in FIG. 4. It is bent into a U-shape (gate shape) corresponding to the surface 16. In this case, by setting the thickness T1 of the bending mold 17 to a dimension corresponding to several staple widths, several paper staples 11 can be formed into a U shape in one step. The external appearance of the connected staple 9 after molding is illustrated in FIG.

  After molding, the bending mold 17 is raised, and the connected staple 9 is sent to the shearing section 5 by the transfer section 3. As shown in FIG. 6, the shearing unit 5 includes a cutting table 18 provided on the forward feed side of the bending table 15, and a shearing blade 19 disposed to be movable up and down at an upper position on the front end side of the cutting table 18. . Therefore, after the connected staple 9 is placed on the cutting table 18 in a state shown in the drawing, that is, the foremost end portion 10 of the connecting staple 9 protrudes from the end surface of the cutting table 18 by a predetermined dimension, the shearing blade 19 is lowered by the lifting drive mechanism. If it does, it will cut | disconnect along the connection part (perforation 13 grade | etc.,) Of the crown part 12, and the U-shaped paper staple 11 will be isolate | separated. As the shearing blade 19, a flat tip type or a V tip type can be used as appropriate (FIG. 7).

  The cut paper staple 11 is sent to the driving unit 6 through a guide member (not shown) and driven into the document P by the driving machine 22. As shown in FIG. 8, the paper staple 11 has a crown portion 12 having a predetermined width W1, and a pair of leg portions 20 and 21 formed by bending both end portions of the crown portion 12 at a substantially right angle. . The width dimension W1 of the paper staple 11 is set to be substantially the same as the width dimension W2 of the blade portion 23a of the driving machine 22. As a result, as shown in FIG. 9, the width dimension of the punch hole 24 formed in the document P by the driving machine 22 and the paper staple 11 driven into the punch hole 24 are substantially the same. It is prevented that a gap is generated between them.

  The front end portion of the one side leg portion 20 which is one vertical piece of the paper staple 11 is formed in a square shape, and an engagement hole (square window) 25 of a predetermined size is formed in the middle portion of the leg portion 20. On the other hand, the tip side portion of the other leg 21 which is the other vertical piece of the paper staple 11 is formed in a trapezoidal shape and gradually becomes narrower as it goes in the tip direction. In addition, a cut line 26 is formed in an arc shape in the middle portion of the leg portion 21, and an upward convex semi-arc-shaped latching piece 27 is formed by cutting along the cut line 26. Further, the driving unit 22 is disposed in the driving unit 6 so as to be movable up and down above the cradle 29, and the paper staple 11 is loaded and held in the standing direction from the lateral direction inside the driving unit 22. The driving machine 22 drives the paper staple 11 into the document P on the cradle 29 while holding the paper staple 11.

  Specifically, the driving machine 22 has a pair of leg portions (blade bodies) 23, 23 projecting substantially vertically on both sides, and the upper horizontal portion as a mounting portion 31, and the leg portions 23, 23 and the mounting portion. 31 is formed in a gate shape. Hole portions 23a and 23a for punching holes are formed at the tip portions of the leg portions 23 and 23, respectively. In addition, protrusions 32 and 32 for placing the paper staple 11 are provided on the inner side of the pair of leg portions 23 and 23 so as to face each other. Further, a pressing member (staple pressing member) 33 for pressing and holding the paper staple 11 is provided on the lower surface side of the mounting portion 31 so as to be movable up and down.

  The shape size of the pressing member 33 is substantially the same as that of the attachment portion 31. In the illustrated example, the concave curved surface 33a is formed on the lower surface of the pressing member 33. However, the concave curved surface 33a is not necessarily provided. . Further, the mounting portion 31 and the pressing member 33 are provided so as to be lifted and lowered independently from each other with respect to a stapler body (not shown) by a lifting drive mechanism. The pressing member 33 is disposed below the mounting portion 31, and the shaft portion 34 planted at the center of the upper surface of the pressing member 33 moves up and down in the fitting hole 30 formed in the central portion of the mounting portion 31. It is inserted as possible.

  As described above, the protrusions 32 and 32 for mounting and supporting the leg portions 20 and 21 of the paper staple 11 are provided on the inner surfaces of the pair of leg portions 23 and 23 in the vicinity of the distal ends. The protrusions 32 and 32 may be formed by press drawing, or may be formed by die casting or the like (FIGS. 11 and 12). The protrusion amount H of the protrusions 32 is set to be slightly larger than the thickness T of the paper staple 11 (FIG. 13A).

  As shown in FIG. 10, the front-view shape of the protrusions 32 and 32 is formed into a vertically asymmetric hexagon having a lower side shorter than the upper side, and in particular, the lower part of the protrusions 32 and 32 goes downward. Accordingly, it is formed in an inverted trapezoidal shape in which the lateral width is gradually narrowed. An upward taper surface 35a and a downward taper surface 35b are formed on the upper edge portion and the lower edge portion of the protrusions 32, 32, respectively. By the tapered surfaces 35a and 35b, the protrusions 32 and 32 can be smoothly raised and lowered without being caught by the document P when moving in the document P.

  Here, when the paper staple 11 is driven into the document P using the driving machine 22, first, the paper staple 11 is placed and set on the protrusions 32 and 32 inside the pair of leg portions 23 and 23 (see FIG. 13 (a)), the pressing member 33 is lowered to hold the paper staple 11 stably. After that, when the entire driving machine 22 is lowered, a punch hole 24 is formed in the document P by the blade portions 23a and 23a of the pair of leg portions 23 and 23, and the punch hole 24 is formed in the leg portion 20 of the paper staple 11. , 21 penetrates.

  At that time, the peripheral edge of the punch hole 24 is pushed and widened by the downward tapered surface 35 b of the protrusions 32, 32, so that the leg portions 20, 21 of the paper staple 11 pass through the punch hole 24 of the document P smoothly. After this, the leg portions 23 and 23 and the pressing member 33 are raised to the forward dimension position. Usually, the pressing member 33 is raised to the original position after the paper staple 11 is clinched (FIG. 13B). Thereby, the crown portion 12 of the paper staple 11 can be reliably pressed by the pressing member 33.

  A clincher device 7 for clinching the legs 20 and 21 of the paper staple 11 is provided below the driving unit 6 shown in FIG. The clincher device 7 bends the receiving base 29 on which the document P is placed in the longitudinal direction L and the one side leg portion 20 of the paper staple 11 driven into the document P on the receiving base 29. While holding the first clincher 37 and the other leg 21 of the paper staple 11, the first clincher 37 is moved to a position just below the catching hole 25 of the one leg 20, and the catching piece 27 is moved along the substantially arcuate cut line 26. The second clincher 38 that bends the narrow width portion 43 below the latching piece 27 to the one leg 20 side in a substantially U shape, and the latching piece 27 and the narrow width portion 43 are combined. And a pushing member 44 for pushing into the engaging hole 25 of the side leg portion 20. The clincher 37, 38 is extended in the same direction as the longitudinal direction L of the cradle 29.

  The cradle 29 can be formed in an appropriate shape such as a flat plate shape as necessary, but in the configuration example of FIG. 8, it is formed in a substantially semi-circular shape having a substantially semicircular cross section. A recess 39 is formed in the lower surface of the cradle 29. One side of the recess 39 is formed in an open state.

  The first clincher 37 is formed in an elongated round bar shape having a predetermined length, and is disposed below one side in the left-right direction B of the cradle 29. The second clincher 38 is disposed on the other side of the cradle 29. It is arranged near the side. The clinchers 37 and 38 are provided so as to be movable in an arbitrary direction with respect to the cradle 29 by a movement drive mechanism.

  The second clincher 38 includes a flat plate-like clincher main body 40 having a predetermined thickness, and a pair of rod-like holding members 41 and 42 horizontally arranged on one end surface in the longitudinal direction L of the clincher main body 40. . One holding member 41 is formed in a substantially quarter-circular cross section, while the other holding member 42 is formed in a substantially circular cross section. In addition, you may form the holding member 41 in a substantially circular cross section.

  The pair of holding members 41 and 42 are provided to be separated from each other in the left-right width direction B of the clincher main body 40, and the other leg of the paper staple 11 that penetrates the document P is interposed between the pair of holding members 41 and 42. Part 21 is inserted. The pair of holding members 41, 42 are moved directly below the engagement hole 25 by the movement drive mechanism, thereby inserting the engagement piece 27 formed on the other leg 21 into the engagement hole 25. Furthermore, when the holding members 41 and 42 are moved by about 180 ° (half rotation movement) toward the first clincher 37 side, the distal side narrow width portion 43 of the other side leg portion 21 is bent and deformed in a substantially U shape.

  A pushing member 44 is provided below the clincher 37 and 38, and the pushing member 44 is formed in a substantially rectangular parallelepiped. The other leg 21 curved in the U-shape has the engaging hole 25 extending along the lower surface of the cradle 29 by lifting the push-in member 44 with the lifting drive mechanism after retracting the holding members 41, 42. It is pushed into the periphery.

  In this embodiment, a case where the document P is bound by the paper staple 11 will be described. First, the paper P is applied to the upper surface of the receiving plate 29 and set so as to have a convex curved shape, and then the paper staple 11 is driven together with the paper staple 11 by the driving machine 22, thereby forming the paper P. Since the punching hole 24 is pushed and widened by the downward tapered surface 35b of the protrusions 32, 32, the leg portions 20, 21 of the paper staple 11 smoothly penetrate the document P (FIGS. 14A and 14B). ).

  In the state after the staple driving, the other leg 21 of the paper staple 11 is inserted and held between the pair of holding members 41 and 42 of the second clincher 38, and the one leg 20 is the first leg 20. It is located inside the clincher 37. Then, when the first clincher 37 moves inward toward the inner side of the cradle 29 to the position near the recess 39, the hanging portion of the one side leg 20 is bent inward along the lower surface of the cradle 29. (FIG. 14 (c), FIG. 16 (a)).

  Thereafter, the pair of holding members 41, 42 inserted through the other leg portion 21 moves to a position directly below the engagement hole 25 of the one leg portion 20, and the leg portion 21 follows the lower surface of the cradle 29. So that it is folded inward. At the same time, since the pair of holding members 41 and 42 themselves do not rotate, as shown in FIG. 15A, the latching piece 27 below the cut line 26 of the leg portion 21 is held in an upright state. As it is, it is inserted in the vicinity of the end in the engagement hole 25 (FIGS. 14D and 16B).

  Next, as shown in FIG. 15B, the substantially quarter-circular holding member 41 of the second clincher 38 rotates (reversely moves) about 180 ° toward the engagement hole 25 with the substantially circular holding member 42 as the center. Further, the distal side narrow portion 43 of the other side leg portion 21 is curved in a substantially U shape so as to wrap around the outer peripheral surface of the substantially circular holding member 42, and the curved distal side narrow portion 43 is engaged with the engagement hole 25. (FIGS. 14E and 16C).

  And as shown in FIG.15 (c), after a pair of holding members 41 and 42 retract | save with respect to the paper staples 11, the pushing-in member 44 raises toward a U-shaped curve. Thereby, the front end side narrow width part 43 and the latching piece 27 of the leg part 21 are pushed into the recess 39 of the cradle 29 (FIG. 14 (f)).

  Thereafter, when the cradle 29 is retracted to the outside of the document P, the narrow width portion 43 and the latching piece 27 of the other leg 21 are separated from each other between the lower surface of the document P and the upper surface of the one leg 20. The curved portion of the other leg 21 returns to the flat shape, and the document P also returns to the flat shape. Therefore, the latching piece 27 and the narrow width portion 43 are latched and clinched to the peripheral edge portions on both sides of the latching hole 25. Thus, the latching dimensions of the narrow width portion 43 and the latching piece 27 with respect to the latching hole 25 are equal to each other, and the document P is reliably bound in a stable state. (FIGS. 14 (g) and 16 (d)).

  As described above, the staple 11 is formed in a U shape by bending both end portions of the strip-shaped paper material, and the hook hole 25 is formed in the one side leg portion 20, while the U shape is formed in the lower portion of the other side leg portion 21. The hooking piece 27 is provided so as to be cut and raised, and a narrow portion 43 is formed on the lower end side of the hooking piece 27.

  In this embodiment, after the upper portion of the latching piece 27 is inserted into the latching hole 25, the tip side narrow width portion 43 of the other leg portion 21 is moved almost half a turn, and is inserted into the latching hole 25 and pushed up. . Thereby, the latching piece 27 and the front end side narrow width portion 43 are pushed into the one side edge portion and the other side edge portion of the hooking hole 25 so as to be separated from each other, so that the document P can be bound stably.

  Accordingly, the document P can be easily and reliably bound with the paper staples 11, and the cutting with the shredder and the paper resource recycling operation can be easily performed without performing needle removal. Further, it is not necessary to remove the paper staple 11 with fingers, and furthermore, since no adhesive is used, paper resources can be recycled smoothly and easily.

  Further, after the paper staple 11 is penetrated, the one side leg portion 20 and the other side leg portion 21 are formed into a predetermined bent shape step by step, and the hooking piece 27 and the leading end side narrow width portion 43 are formed in the hooking hole 25. Since the paper is pushed in and bound, the binding strength and quality of the paper staple 11 are significantly increased.

  Further, the paper staple 11 is stacked and loaded with a staple sheet 8 formed by connecting a plurality of crown portions 12 to the sheet storage portion 2 of the stapler 1, and when the staple is driven, the staple sheet 8 is folded into a U-shape and driven. Since the paper staple 11 is cut into the possible paper staples 11, smooth continuous driving of the paper staples 11 is possible, and the labor of loading the paper staples 11 every time the paper staples 11 are driven into the document P can be saved.

  Since the perforation 13 or the slit 14 is formed in the connection portion of the crown portion 12 of the connection staple 9, when the paper staple 11 is sheared, it can be separated along the perforation 13 or the slit 14. The paper staple 11 having a predetermined shape can be produced with high accuracy.

  The present invention can be variously modified without departing from the spirit of the present invention, and the present invention naturally extends to the modified one. For example, in the present embodiment, the staple sheet 8 having a predetermined length is stacked and loaded in the sheet storage unit 2, but the staple sheet 8 provided in a long shape is wound in a roll shape and the sheet storage unit 2. It may be housed in a container and fed out from the front end side in order.

1 is a block diagram illustrating an overall configuration of a stapler according to an embodiment of the present invention. 1A and 1B show a staple sheet according to the present invention, in which FIG. 1A is a perspective view of an ordinary crown-linked staple sheet, FIG. 1B is a perspective view of a perforated staple sheet, and FIG. The perspective view of a sheet | seat. The perspective view explaining the state before bending-molding the staple sheet which concerns on this invention. The perspective view explaining the state after bending and forming the staple sheet of FIG. 1A and 1B show a staple sheet folded into a U-shape according to the present invention, in which FIG. 1A is a perspective view of an ordinary crown-linked staple sheet, FIG. 1B is a perspective view of a perforated staple sheet, and FIG. The perspective view of a partial connection type staple sheet. Sectional drawing explaining the state which cut | disconnects the connection staple which concerns on this invention with a blade. Sectional drawing explaining the state which cut | disconnects a connection staple with another blade. The perspective view which shows the driving | running | working part and clincher part which concern on one Example. The perspective view which shows the crown part after driving the paper-made staple which concerns on one Example into a document. The perspective view which shows the structural example of the protrusion which concerns on one Example. FIG. 11 is an AA cross-sectional view illustrating a configuration example of a protrusion in FIG. 10. FIG. 11 is an AA cross-sectional view showing another configuration example of the protrusion of FIG. 10. The paper staple which concerns on one Example is shown in the driving | running | working machine, and shows the state driven, (a) is sectional drawing before driving | running, (b) is sectional drawing after driving | running. FIGS. 4A and 4B show each process when paper staples according to an embodiment are driven into a document for binding, and FIG. 5A is a process diagram before the staple penetrates the document, and FIG. (C) is a process diagram when one side leg portion of the staple is bent inward, and (d) is a process diagram when the latching piece of the other leg portion of the staple is raised. (E) is a process diagram when the narrow portion of the other leg portion of the staple is bent, (f) is a process diagram when the curved portion of the other leg portion of the staple is inserted into the hooking hole, g) is a process diagram when a document is bound with the staple. The appearance of each process at the time of driving in the paper staple which concerns on one Example to a document is shown, (a) is a perspective view which shows the state which stood up the latching piece of the other side leg part of the staple, (b). The perspective view which shows the state which curved the narrow part of the other side leg part of the staple, (c) is a perspective view explaining the state which pushes the curved part of the other side leg part of the staple into a latching hole. The appearance of each process which looked at the state when driving and folding the paper staple according to one embodiment from the lower side, (a) is a perspective view showing a state where one side leg portion of the staple is bent, (B) is a perspective view showing a state immediately before putting the latching piece of the other leg of the staple into the latching hole, and (c) is just after putting the latching piece of the other leg of the staple into the latching hole. The perspective view which shows the state of this, (d) is a perspective view which shows the state which the bending of the staple was completed.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Stapler 2 Sheet storage part 3 Transfer part 4 Bending molding part 5 Shearing part 6 Punching part 7 Clincher part (clincher device)
8 Staple sheet 9 Linked staple 11 Paper staple 12 Crown portion 13 Perforation 14 Slit 15 Mounting table 16 Forming surface 17 Bending mold 18 Cutting table 19 Shearing blade 20 One side leg (one vertical piece)
21 The other leg (the other vertical piece)
22 Driving Machine 23 Leg 23a Extraction Blade 24 Extraction Hole 25 Engagement Hole (Square Window)
26 Cut line 27 Stopping piece (claw part)
29 Substantially Camaboko-shaped cradle 30 Fitting hole 31 Mounting part (horizontal part)
32 Projection 33 Pressing member 33a Curved surface 34 Shaft 35a Upward taper surface 35b Downward taper surface 37 First clincher 38 Second clincher 39 Recess 40 Clincher main body 41 Substantially semicircular holding member 42 Substantially circular holding member 43 Tip side Narrow part 44 Push-in member P Document

Claims (3)

  A paper staple formed by bending a belt-like paper material into a U-shape, wherein the paper staple has an engagement hole formed in one longitudinal piece thereof, and the other longitudinal piece is a substantially circular shape for forming the engagement piece. A paper staple, characterized in that an arc-shaped cut line is provided, and the leading end of the other vertical piece is formed narrow. A clincher device for clinching a vertical piece of paper staple according to claim 1, wherein the clincher device comprises:
A movable substantially cradle-shaped cradle on which documents are placed; and
A first clincher that bends the one longitudinal piece of paper staple driven into a document on the cradle inward;
In a state where the other vertical piece of the paper staple is sandwiched, the other vertical piece is moved to a position just below the hooking hole of the one vertical piece bent inward, and along the substantially arc-shaped cut line. A second clincher that cuts and raises the latching piece and then bends the narrow portion on the lower side of the latching piece to the one vertical piece side in a substantially U-shape;
A paper clincher device for paper stapling, comprising a pressing member for pressing the hooking piece and the narrow portion into the hooking hole of the one vertical piece. A document binding method using the paper staple according to claim 1 and the paper staple clincher device according to claim 2,
A step of driving a U-shaped paper staple on a document on a substantially kamaboko-shaped cradle while straddling the cradle;
Bending the one longitudinal piece of the paper staple inward with a first clincher;
In a state where the other vertical piece of the paper staple is clamped by a second clincher, the other vertical piece is moved to just below the engagement hole of the one vertical piece, and the hooking piece is cut off, and
Curving the narrow portion in a substantially U shape on one longitudinal piece side with a second clincher;
A step of pushing the hooking piece and the narrow portion into the hooking hole with a pushing member;
And a step of retracting the substantially Kamaboko-shaped cradle to the outside of the document.

Images