JP5571264B1 - Staple needle remover - Google Patents

Abstract

An object of the present invention is to pull out a stapler stapled on a bound sheet so that the staple mark on the bound sheet does not remain.
The position of the staple needle 1 exposed on one side of the binding paper 2 formed by driving the staple needle 1 into the paper is specified, and the staple is placed between the specified binding paper 2 and the leg 1a of the staple needle 1. The insertion upright fork 30 is inserted in a direction perpendicular to the central main body 1b of the needle 1, the end of the leg 1a of the staple needle 1 is erected as a free end, and the end of the staple 1 is brought into a predetermined state. During or after being raised, the staple paper 1 and the staple paper 2 are stapled so that the distance between the staple needle 1 and the surface of the staple paper 2 is increased on the side of the central body 1b of the staple needle 1 exposed on the staple paper 2. The needle pulling upright piece 40 is inserted between the needle 1 and the central main body 1b side, and the specification of the staple needle 1 and the binding paper 2 is released.
[Selection] Figure 5

Description

  The present invention relates to a staple needle remover that removes a stapler needle from a closed paper surface by bending a leg of a staple needle.

Conventional staple needle removers include those in which a part of the stapler structure is provided with a function for removing the stapler needle, and functional parts for removing the stapler needle independently of the stapler.
Japanese Patent Application Laid-Open No. H11-228688 discloses a part of a stapler structure in which a function for removing a stapler needle is attached. According to the stapler of Patent Document 1, an arm cover having a tongue piece portion at the rear end portion is provided, and the crown piece portion can be inserted into the upper surface of the remover portion as a staple wire rod driven on the binding paper. It has a ceiling surface with a gap corresponding to the wire diameter of a staple. Therefore, at the time of staple needle removal, the crown portion can be positively pressed from above between the upper surface of the remover portion and the ceiling surface of the tongue piece portion, and the left and right leg portions can be pulled out evenly. In addition, even when only one leg is removed, the crown can be pressed between the upper surface of the remover and the ceiling of the tongue, so the remaining leg on the opposite side Can be pulled out easily, and the workability at the time of staple needle removal can be improved.

  Further, a remover as a functional component that removes the stapler needle independently of the stapler is disclosed as a medical staple of Patent Document 2. The medical staple of Patent Document 2 is composed of a crown portion and needle leg portions bent downward via bent portions at both ends thereof, and is bent between the central portion of the crown portion and the bent portion by a stapler. In a staple for driving a needle leg portion into the skin and bringing a wound close thereto, a first notch is formed on a lower surface portion of a both-side bent portion that is bent by the stapler, and between the first notches of the crown portion, and The second notch is formed on the upper surface portion that is equally spaced from both the first notches by a predetermined distance.

  According to this Patent Document 2, when the staple leg is driven into the skin by the stapler, the staple is bent at a substantially right angle from the first notch by pushing down both sides of the crown, and the needle legs on both sides are evenly skinned. It is inserted in and a good stitching state is obtained. When removing the needle leg portion, the staple is moved to the second notch portion by moving the second notch portion of the crown portion and the first notch and the second notch relatively in the reverse direction. To bend in a direction opposite to the bending direction of the first notch. In this way, the left and right sides are bent evenly, so that the needle legs on both sides come out of the skin in the same state.

In the case of using the binding paper, there is a technique described in Patent Document 3. Patent Document 3 is a remover that removes staples bound to an object, and is provided on a base, an operation handle pivotally attached to the base, and a distal end side of the operation handle, and is bound to the object. A staple portion inserted between the crown portion of the staple and the object, and a slope portion provided on the base and formed high from the front end side toward the rear end side. A slope member inserted between the crown portion and the object, the staple is removed by an insertion piece provided on a distal end side of an operation handle pivotally attached to a base, and a slope member having a slope is provided. The staple is removed.
Therefore, it is possible to lift the insertion piece provided on the distal end side of the operation handle and remove the staples bound with a large number of sheets. In addition, the slope member can be slid to remove staples bound with a small number of sheets. In this manner, both a staple bound with a large number of sheets and a staple bound with a small number of sheets can be accurately removed by a single remover.

JP2009-12098A JP 2006-223844 A JP2011-11322A

  As described above, in Patent Document 1, as shown in FIGS. 13 and 14 of Patent Document 1, the stapler needle is lifted by the remover portion, and the stapler needle driven into the binding paper is removed from the binding paper. . However, since it is lifted by human feeling at this time, there are individual differences in the removal of the stapler needle from the spelling paper, and the spelling paper may be broken. In particular, since the tip of the stapler needle is bent and cut into the spelling paper, it is common to tear the spelling paper when the stapler needle is removed from the spelling paper.

Moreover, in patent document 2, since a human skin is an elastic body, when driving a stapler needle into skin, when removing a needle leg part, it can carry out by simple operation. However, even if the technique is applied to the binding paper, it cannot be put into practical use due to the difference in physical properties between the binding paper and human skin.
In Patent Document 3, the stapler needle is displaced from the stapled sheet by displacing the position of the stapler needle with a slope member or an insertion piece while the stapled sheet is pressed on the base. However, since the slope member and the insertion piece are away from the position where the stapler needle is captured, if the staple member is not moved in the direction of the slope member or insertion piece, the staple marks on the binding paper are processed with good appearance. Can not.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a staple needle remover that can be removed with a good appearance so that no staple marks remain on the stapled paper even when the stapler staples bound with the stapled paper are extracted.

Staple needle remover according to a first aspect of the invention, the sheets of paper restraining step of restraining the positions of the staples exposed on one side of the sheets of paper formed by implanted staples a sheet, constrained by the sheets of paper restraining step A leg standing step for inserting an upstanding fork protruding piece in a direction orthogonal to the staple needle between the stapled paper and the staple leg, and standing up with both leg sides of the staple needle as free ends. And a central body portion of the staple needle exposed to the binding paper in the leg standing step so that a distance between the staple needle and the surface of the binding paper is increased. It comprises a needle removal step of inserting a needle removal upright piece between the main body portion and a binding paper constraint release step of releasing the holding of the binding paper.

Here, the binding sheet restraining step sandwiches the binding sheet so as to restrain the position of the staple needle exposed on one side of the binding sheet formed by driving a U-shaped staple into the sheet. The staple needle may restrain either side of the central main body and / or both legs.
Further, in the leg standing step, insertion standing fork protruding pieces are inserted into both leg portions of the staple needle in a direction perpendicular to the staple needle, and the both leg portions of the staple needle are raised as free ends. It should be noted that the opening at the free end for raising both the leg portions of the staple needle is desirably wide, but does not necessarily need to be maximized. It may be in the middle of raising both legs of the staple needle in a predetermined state, or after it has been raised. Of course, it is most desirable that both the leg portions of the staple needle are positioned at right angles to the central body portion. However, since the binding paper is flexible, the opening of the free end of the staple needle needs to be limited to a large value. There is no sex.

In the leg erection step, the insertion erection fork protruding piece is configured so that both legs of the staple needle erect as perpendicularly as possible with respect to the central body part of the staple needle, Insertion is performed so that the height of the free ends of both legs is increased from the central main body of the staple needle.
Furthermore, the binding paper constraint releasing step may be any process that releases the holding of the binding paper from the upper surface and the lower surface. Of course, the staple needle may be detached from the binding paper, or may be stopped immediately before the separation, and the staple needle may be removed by hand.
Furthermore, the binding paper restraint releasing process may be any process that releases the restraint of the staple needle and the binding paper.

The binding sheet restraining step of the staple needle remover according to the second aspect of the invention specifies the position of the staple needle exposed on the binding sheet formed by driving a U-shaped staple into the sheet.
Here, it is desirable that the binding sheet is sandwiched from the upper surface and the lower surface by using an elastic material such as elastomer, synthetic rubber, or spring after the staple is inserted into the fitting recess and restrained in position. In this method, a binding sheet bound by a U-shaped staple is sandwiched from the upper surface and the lower surface so as to be sandwiched with little slippage.

In the leg erection step of the staple needle remover according to the invention of claim 3, the insertion erection fork projecting piece has a cross section so that both legs of the staple needle are perpendicular to the central main body, and the insertion erection The height is increased with the insertion of the fork protruding piece.
Here, the cross-section of the insertion standing fork protruding piece used in the leg standing step is such that the gap formed by both legs of the staple needle is inserted at a right angle with respect to the central body portion, and the insertion standing It is desirable that the height of the free end of the leg increases as the fork protruding piece is inserted. However, since the shape of the gap between the leg portions is a cross-sectional triangle in the initial stage of insertion, the cross-section of the inserted upright fork protruding piece is desirable because the cross-sectional shape is desirable. It is also possible to make it perpendicular to the main body.

In the staple removal step of the staple needle remover according to the invention of claim 4, the staple removal stand piece is inserted between the staple paper and the central body portion of the staple needle by inserting the staple removal stand piece. According to the taper, the distance between the central main body portion of the staple needle and the surface of the binding paper is largely separated.
Here, the needle pulling step includes inserting the needle pulling upright piece between the binding paper and the central main body portion of the staple needle, and according to the taper of the needle pulling upright piece, the central body of the staple needle. What is necessary is just to enlarge the distance of a part and the surface of the said binding paper. At this time, the staple needle may be detached from the binding paper, or may be stopped immediately before the separation, and the staple needle may be removed by hand. Here, the staple needle is detached from the binding paper. Is specified.

The staple needle remover according to claim 1, wherein a position of the staple needle exposed on the binding paper formed by driving the staple needle into the paper is specified, and the position of the staple needle is specified by sandwiching the binding paper. legs and steps, the legs of the staple which has been identified by the sheets of paper restraining step, the insert the insert upright forks protruding piece orthogonal to the central body portion of the staples, erecting the two leg portions of the staple A step of erecting the staple paper and the staple needle so that the distance between the central body portion of the staple needle and the surface of the staple paper is increased between both leg portions of the staple needle exposed on the staple paper. It comprises a needle pulling step for inserting a needle pulling upright piece in between, and a binding paper constraint releasing step for releasing the binding of the binding paper.

  The staple needle remover according to the first aspect of the present invention specifies and pinches the staple needle exposed from the binding paper formed by driving the U-shaped staple needle into the paper, and the bent staple needle is bent. Inserted into the legs between the position and the end position from the tip of the insertion standing fork protruding piece, the legs of the staple needle are raised as free ends, the legs of the staple needle are raised in a predetermined state, In a state where both bent leg portions of the staple needle exposed on the binding paper grip the insertion standing fork protruding piece, the central main body portion side of the staple needle is connected to the central main body portion of the staple needle and the surface of the binding paper. To release the restraint of the staple needle and the binding paper, by inserting a needle pull-up standing piece between the binding paper and the staple needle so as to increase the distance to the staple paper. A.

Therefore, since the staple needle exposed from the binding paper formed by driving the U-shaped staple needle into the paper is restrained, the central body portion of the staple needle is less than 10 mm and both legs are less than 5 mm. However, it is possible to insert the leading end of the protruding upright fork protruding piece into the gap between the leg portions of the staple needle accurately, and the binding paper is not damaged.
In addition, an inserted upright fork protruding piece is inserted into the gap between the leg portions of the staple needle that is restrained from the tip, and the ends of the staple needle stand up with the bent positions of the leg portions of the staple needle as the free ends. Since both the leg portions of the staple needle have free ends, the both leg portions can be displaced with a slight external force.

Then, with both legs of the staple needle standing up in a predetermined state, the standing force between the binding sheet and the central body of the staple needle is released. Since the insertion upright fork protruding piece has its free end open, there is a space for the binding paper to move when an external force is applied between the binding paper and the central body portion of the staple needle. Even if the standing upright piece is inserted, the binding paper is not damaged. Further, since one of the legs of the staple needle is raised in a predetermined state and the free standing end of the insertion standing fork projecting piece is open, a needle removal standing piece between the binding sheet and the staple needle is simultaneously used. When the staple is inserted, the staple needle is held by the insertion standing fork protruding piece and the needle removal standing piece, so that the staple needle can be floated in the state where no external force is applied to the binding paper. Of course, the staple needle can also be removed.
Therefore, when the distance between the binding paper and the central main body portion of the staple needle is increased by the needle pulling upright piece, the holding of the staple needle and the binding paper can be released and can be taken out freely.

The binding sheet restraining step of the staple needle remover according to claim 2 specifies a U-shaped staple by fitting a central body portion of a U-shaped staple stapled with a binding sheet. Thus, in addition to the effect of claim 1, the insertion stand-up fork protruding pieces are inserted into both leg portions of the staple needles that are driven into the paper with U-shaped staples that are difficult to grasp at first. Both legs of the staple needle can be cut and raised.

  4. The leg erection step of the staple needle remover according to claim 3, wherein both the leg portions of the staple needle erected at a right angle in a cross section of the parallel insertion erection fork protrusion pieces, and the insertion erection fork protrusion piece is a staple needle. Since the height of the cross-section of the inserted upright fork protruding piece is increased by being inserted into both leg portions between the bent position and the end position, In addition to the effects described above, the free ends of both the leg portions of the staple needle can be widened with a simple structure.

  The staple removing step of the staple needle remover according to claim 4, wherein the staple removal stand piece is inserted between the staple paper and the central main body portion of the staple needle according to the taper of the staple removal stand piece, The distance between the central main body portion of the staple needle and the surface of the binding paper is increased, so that in addition to the effect of any one of claims 1 to 3, the binding paper and the staple By inserting the needle pulling upright piece between the center main body portion of the needle and moving the distance between the staple needle and the surface of the binding paper according to the taper of the needle pulling upright piece, Since it is not necessary to take strict timing between them, the control is simple and can be used by amateurs.

FIG. 1 is a perspective view in which a known binding sheet is bound with a staple. 2A and 2B are cross-sectional views of a main part of a known stapled paper as viewed from the leg side, and FIG. 2B is a cross-sectional view of a main part as viewed from the central body side. FIG. 3 is a principle diagram for raising a leg portion from a stapled paper stapled with a staple needle in the staple needle remover according to the first embodiment of the present invention. (B) is sectional drawing which makes the state which raised the leg part of the staple needle | hook down. FIG. 4 is a principle diagram for raising the leg portion from the stapled paper bound with the staple needle in the staple needle remover according to the first embodiment of the present invention. FIG. 4 (a) is a perspective view of the staple needle stapled state. FIG. 3 is a perspective view of a state in which a leg portion of a staple needle is being raised. FIG. 5 is an operation explanatory view of the staple remover according to Embodiment 1 of the present invention in which the legs are removed from the stapled paper bound with the staples, and FIG. (B) is a cross-sectional view of a state in which the gap between the leg portions of the staple needle is being erected, (c) is an initial cross-sectional view in which the gap between the leg portions of the staple needle is erected and a needle-up stand piece is inserted, (D) is a cross-sectional view in which the staple removal standing piece is inserted and the staple needle is removed, and (e) is a cross-sectional view immediately before the staple removal standup piece is inserted and the staple needle is removed. FIG. 6 is a timing chart showing the timing of the operation of the insertion upright fork and the needle removal upright piece in the staple needle remover according to the first embodiment of the present invention. 7A and 7B show the initial position of the staple needle remover according to the first embodiment of the present invention. FIG. 7A is a bottom view of the upper housing, and FIG. 7B is a top view of the lower housing. 8A and 8B show a staple needle remover according to the first embodiment of the present invention. FIG. 8A is a cross-sectional view illustrating the positional relationship between the insertion standing fork and the needle pulling standing piece in the initial position, and FIG. It is sectional drawing by the cutting line AA of FIG. 9 explaining a connection with a side housing. FIG. 9 is a bottom view of the upper housing and a top view of the lower housing in the staple needle remover according to the first embodiment of the present invention. 10A and 10B show a state in which the operation of the insertion standing fork in the staple needle remover according to the first embodiment of the present invention has been completed. FIG. 10A is a bottom view of the upper housing, and FIG. 10B is a top view of the lower housing. FIG. 11 is a cross-sectional view for explaining the positional relationship between the insertion standing fork and the needle removal standing piece in the operation end state of the insertion standing fork in the staple needle remover according to the first embodiment of the present invention. 12A and 12B show the staple removal state of the staple needle remover according to the first embodiment of the present invention. FIG. 12A is a bottom view of the upper housing, and FIG. 12B is a top view of the lower housing. FIG. 13 is a cross-sectional view for explaining the positional relationship between the insertion standing fork in the staple removal state and the staple removal standing piece in the staple needle remover according to the first embodiment of the present invention. FIG. 14 is a perspective view showing an opening / closing mechanism by uniaxial support of the staple needle remover according to the second embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that, in the embodiments, the same reference numerals and the same reference numerals are the same or corresponding functional parts, and therefore, redundant description thereof is omitted here.

[Embodiment 1]
As shown in FIGS. 1 and 2, the U-shaped staple 1 is driven into a plurality of sheets, and the leg portion 1 a and the central body portion 1 b are exposed from the spelling sheet 2. Here, the leg portion 1a of the staple needle 1 refers to the portion bent from the right angle of the U-shaped staple needle 1 to the free end, and both ends of the central body portion 1b of the staple needle 1 are U-shaped. Means a straight portion between the portions of the staple needle 1 bent at right angles. Accordingly, one U-shaped staple needle 1 is composed of a leg portion 1a and a central body portion 1b.

  The U-shaped staple 1 is usually in a state in which the binding paper 2 is bound, the leg portion 1a bends its free end toward the binding paper 2, and the opposite side of the binding paper 2 has a central main body 1b. Therefore, the bending of the free end is normally stopped at the position where the spelling paper 2 abuts. Precisely, it stops at the sinked position due to the elasticity of the binding paper 2. In rare cases, the paper on the front surface of the spelling paper 2 may be damaged, but usually it stops at the sunk position due to the elasticity of the spelling paper 2.

  The leg portion 1a of the U-shaped staple needle 1 is bent in such a direction that the free end of the binding paper 2 is fitted into the binding paper 2 in a state where the binding paper 2 is bound. A gap 1c is always formed in both leg portions 1a from the bent portion to the free end. When the central body 1b has a length of about 10 mm, the gap 1c has a height of 0.5 mm or more and a lateral width of 2.5 mm or more. Of course, in general, the central body 1b is about 10 mm in length, and the U-shaped staple needle 1 is a small standard. Become.

  FIG. 3 shows the position of the staple needle 1 exposed from the binding paper 2 formed by driving the U-shaped staple needle 1 into the paper, and the central main body 1b of the staple needle 1 is fitted into the lower housing 100. A fitting recess 102 is formed at the end. In the present embodiment, one fitting recess 102 into which the central main body 1b of the staple needle 1 is fitted is provided. However, when the present invention is carried out, the linear position is determined instead of the fitting recess 102. In addition, when a plurality of fitting recesses 102 are provided, it is preferable that the side closer to the insertion upright fork 30 is for a large staple, and the far side is for a small staple.

  That is, the fitting recess 102 of the central main body 1b of the staple needle 1 provided in the upper housing 200 may be changed according to the standard of the staple needle 1, or the central main body 1b of the staple needle 1. The fitting recesses 102 may be formed in parallel so that a plurality of them can be positioned. Here, since it becomes complicated, it demonstrates as an example matched with the standard of the single staple 1. In the staple needle remover of the present embodiment, the case where the fitting recess 102 into which the central body 1b of the staple needle 1 is provided will be described. However, when the present invention is carried out, both legs 1a of the staple needle 1 are provided. It is good also as the fitting recessed part 102 which the side fits.

7, 10, and 12 (a) and (b) are opposed to each other. As shown in FIG. 9, a cover 60 provided on the upper housing 200 is provided on the lower housing 100. Opposing to the cover 70.
That is, as shown in FIG. 9, the groove 105 is provided in the lower housing 100, the groove 205 is provided in the upper housing 200, the cover 60 provided in the upper housing 200, and the lower side The covers 70 provided on the housing 100 face each other.
The electrical switch SW formed on the upper surface of the upper housing 200 is a switch that self-holds the motor 300, and the lock switch LO prevents the gap between the lower housing 100 and the upper housing 200 from being opened or closed. A lock mechanism (not shown) is operated.

  When the central main body 1b of the staple needle 1 is fitted in the fitting recess 102 in which the central main body 1b of the staple needle 1 is fitted, the movement of the binding paper 2 between the lower housing 100 and the upper housing 200 is restricted. Is done. That is, the binding paper 2 is sandwiched between the upper surface of the lower housing 100 and the lower surface of the upper housing 200, and the movement of the binding paper 2 and the movement of the central main body 1b of the staple needle are restrained. Strictly speaking, the insertion standing fork protruding pieces 31a and 31b are inserted into the gap 1c of the staple 1 to determine the restraining position.

  In particular, the binding of the binding paper 2 is preferably formed by forming the upper surface of the lower housing 100 and the lower surface of the upper housing 200 with synthetic rubber, synthetic resin, elastomer, or the like, and forming an environment in which the binding paper 2 is difficult to move. Of course, the metal surface may be a bowl-shaped uneven surface, whereby the binding paper 2 may be sandwiched. It is the both sides of the insertion standing fork 30 and the needle removal standing piece 40 that expose the binding sheet 2. Referring to FIG. 9, the surface 71 and the surface 72 on both sides of the needle removal upright piece 40 are the upper surface side of the lower housing 100. Similarly, the facing surface of the upper housing 200 (not shown) is also applicable.

In this binding sheet restraining step , in order to insert the tips of the insertion standing fork protruding pieces 31a and 31b of the insertion standing fork 30 into the gap 1c between the binding sheet 2 and the leg portion 1a of the staple needle 1, as shown in FIG. First, the upper housing 200 is raised against the elasticity of the spring 91, and the interval is stopped by the lock switch LO. A predetermined interval is set between the upper housing 200 and the lower housing 100, as shown in FIG. Form. When the lock switch LO is released, the binding sheet 2 is sandwiched between the lower housing 100 and the upper housing 200 and elastically coupled by the four shafts 90 and the springs 91 that are pivotally supported, so that the binding sheet 2 is free. It becomes difficult to move. The lock switch LO uses two of the four shafts 90 to contact the shafts and apply a mechanical switch brake so that the space between the lower housing 100 and the upper housing 200 does not change. It is.

The step of sandwiching the binding paper 2 specifies the exposure position of the staple needle 1 from the binding paper 2 formed by driving the U-shaped staple needle 1 into the paper, positions the staple needle 1, and determines the state. This is a binding sheet restraining step for holding the binding sheet 2 to be maintained. In the binding sheet restraining step , the leg portion 1a side of the U-shaped staple needle 1 driven into the binding sheet 2 may be captured, or the central main body portion 1b may be captured. However, if the used staple 1 is dropped to the lower housing 100 side, the staple needle 1 can be removed continuously, so that the used staple 1 is dropped to the lower housing 100 side. This is advantageous because it increases the degree of freedom in design.
8, 9, and 11, since the groove 105 is formed in the upper portion of the lower housing 100, the used staple needle 1 can be taken out therefrom, and a permanent magnet (not shown) is arranged. It is also possible to collect used staples 1.

An insertion standing fork 30 in which the insertion standing fork 30 is formed in a V shape on both sides in a direction intersecting the staple needle 1 and a Y shape that makes the image of the fork as a whole with respect to the gap 1c of the leg portion 1a of the specified staple needle 1 The protruding tips of the fork protruding pieces 31a and 31b are inserted into the gap 1c, and the legs 1a are erected with the tips of both legs 1a of the staple needle 1 as free ends.
This step is an insertion standing fork that protrudes in a direction intersecting the staple needle 1 in the gap 1c formed by the leg portion 1a between the folding position and the end position of the staple needle 1 specified in the binding paper restraining step. This is a leg erection process in which the protruding pieces 31a and 31b are inserted and the tips of both leg portions 1a of the staple needle 1 are erected as free ends.

That is, as shown in FIG. 6, the inserted upright fork 30 has a cross-sectional shape in which the distal ends of the inserted upright fork protruding pieces 31 a and 31 b are thin and the thickness increases according to the distance from the distal end. The maximum thickness of the spelling paper 2 from the paper surface can be set to about 3 to 10 mm. Although the upper surface side of the binding paper 2 of the insertion upright fork 30 is a flat surface, it is also possible to make it easier to insert a needle removal upright piece 40 described later as an uneven surface. The leading ends of the inserted upright fork protruding pieces 31a and 31b can be finished by mirror chamfering or the like so as not to damage the surface of the binding paper 2 by chamfering 0.1 to 0.5R.
The width perpendicular to the length direction of the insertion upright fork 30 also has a cross-sectional shape that increases its width in accordance with the distance from the tip.

  As shown in FIGS. 8, 11, and 13, the insertion upright fork 30 is connected to a roller support bar 35 via a connecting bar 33, and the roller 36 disposed at the end includes an upper housing 200. It abuts around the cam 204 accommodated in the fitting recess 201 provided inside. A roller 36 disposed at the tip of the coupling bar 33 and the roller support bar 35 is provided with a spring 37 between the E-type slip ring 34 and the fixed support piece 38 for applying an elastic force around the cam 204. That is, as the E-type slip ring 34 expands, the connecting bar 33 and the roller support bar 35 elastically contact the roller 36 around the cam 204.

  Accordingly, as the cam 204 rotates, the roller 36 rolls on the outer circumferential track. As a result, the connecting bar 33 and the roller support bar 35 reciprocate and reciprocate by the difference L between the large diameter and the small diameter of the cam 204. When the cam 204 is at the small diameter position, the outer peripheral track of the roller 36 moves the substantially V-shaped insertion upright fork protruding pieces 31a and 31b to the right. Further, when the cam 204 is at the large diameter position, the outer peripheral track of the roller 36 moves the insertion upright fork protruding pieces 31a and 31b to the rightmost. As a result, the insertion standing fork protruding pieces 31a and 31b move by L.

Similarly to the insertion standing fork 30, the needle pulling upright piece 40 has a cross-sectional shape in which the tip is thin and the thickness increases according to the distance from the tip, as shown in FIG. 6. The maximum thickness of the binding paper 2 from the paper surface is about 4 to 10 mm. The lower surface side of the binding paper 2 of the needle pulling up stand piece 40 is flat.
The leading end of the needle pulling up stand piece 40 is located at the position of the leg 1b of the staple needle 1 where the insertion upright fork 30 is opened, that is, when the cam 204 is rotated 180 °, the binding sheet 2 and the central main body 1b of the staple needle 1. In between, the needle | hook removal standing piece front-end | tip 41 will start insertion.

The upper surface of the lower housing 100 faces the lower surface of the upper housing 200, and has a structure shown in FIG.
Since the tip 41 of the needle pulling upright piece 40 is inserted between the staple paper 2 and the central body 1b of the staple needle 1, it is substantially V-shaped like the insertion upright fork 30. It is not necessary to form the two inserted upright fork protruding pieces 31a and 31b, and it is simply wedge-shaped. Further, the needle pulling upright piece 40 has an arc shape and is easily inserted from the center.
Note that the staple needle 1 can be removed from the binding paper 2 depending on the final thickness of the needle pulling upright piece 40, or can be stopped immediately before the staple needle 1 is removed. There are merits and demerits in whether to stop or just stop, so the user can choose how to use it.

Further, the needle pulling upright piece 40 is connected to a roller support bar 45 via a connecting bar 43, and the roller 46 disposed at the end is inserted into a fitting hole 101 provided in the lower housing 100. It is in contact with the periphery of the accommodated cam 104. A roller 46 disposed at the distal ends of the coupling bar 43 and the roller support bar 45 is provided with a spring 47 between the E-type slip ring 44 and the fixed support piece 48 for applying an elastic force around the cam 104.
That is, as the E-type slip ring 54 expands, the connecting bar 43 and the roller support bar 45 elastically contact the roller 46 around the cam 104.

Therefore, as the cam 104 rotates, the roller 46 rolls on its outer circumference track. As a result, the connecting bar 43 and the roller support bar 45 reciprocate and reciprocate by the difference M between the large diameter and the small diameter of the cam 104. When the cam 104 is at the small diameter position, the outer circumferential track of the roller 46 moves the wedge-shaped needle-drawing upright piece 40 to the rightmost. Further, when the cam 104 is at the large diameter position, the outer circumferential track of the roller 46 moves the needle-drawing upright piece 40 to the left most. As a result, the needle pulling upright piece 40 moves by M.
The output shaft 203 of the motor 300 has a regular hexagonal cross section, and the central shaft holes of the cam 104 and the cam 204 can be inserted in the length direction thereof. However, the rotation of the cam 104 and the cam 204 is performed by applying a rotational force directly from the output shaft 203 of the motor 300.

  The center main body 1b between the bent leg portions 1a of the staple needle 1 exposed on the spelling paper 2 in a state in which the force required to stand between the spelling paper 2 and the staple needle 1 is released is connected to the staple needle 1 and The step of inserting the needle pulling upright piece 40 between the binding paper 2 and the staple needle 1 so as to increase the distance from the surface of the binding paper 2 is referred to as a needle pulling step.

That is, the surface of the staple needle 1 and the binding paper 2 with respect to the central main body 1b of the staple needle 1 exposed on the binding paper 2 in a state where the force required to stand between the binding paper 2 and the staple needle 1 is released. Is inserted so that the distance between the staple paper 2 and the staple needle 1 is separated.
At this time, it is possible to talk to such an extent that the spaced staple needles 1 fall freely, or a part of the staple needles 1 can be caught on the binding paper 2.

Then, the clamping force of the binding paper 2 is released, and the restraint of the staple needle 1 and the binding paper 2 that has been bound up to that time is released. The step of releasing the pinching force of the binding paper 2 and releasing the restraint of the staple needle 1 and the binding paper 2 that has been bound up to that time is referred to as a needle removal step.
In this needle pulling step, a recessed portion may be formed on the upper surface of the lower housing 100 in order to temporarily store the used staple needle 1, and a permanent magnet or an electromagnet is provided there for use. A finished staple 1 may be accommodated. However, a method in which the staple needle 1 is processed until immediately before it is detached from the binding paper 2 and is manually removed is preferable from the viewpoint of efficiency and finish.

  As shown in FIG. 8B, the shaft 90 elastically coupled by the four springs 91 is elastically moved between the lower housing 100 and the upper housing 200, and the thickness of the binding paper 2 is the distance moved in parallel. Therefore, when the lower housing 100 and the upper housing 200 are joined by the elastic force of the spring 91, the thickness of the binding paper 2 is arranged between the two, and the binding paper 2 bound by the staple needle 1 is stored. There is no need to take into account the thickness.

Accordingly, the binding paper 2 bound by the staple needle 1 is fitted into the fitting recess 102 in which the central body 1b of the staple needle 1 is engraved, and the binding paper 2 is positioned.
In addition, since the spring 91 is arrange | positioned between the lower housing 100 and the upper housing 200, both are acting the elastic force in the direction which mutually approaches. Therefore, a lock switch LO (not shown) has a function of holding or releasing the distance.

In this state, operation of a self-holding switch SW (not shown) turns on the power of the motor 300, and the cam 204 of the upper housing 200 and the cam 104 of the lower housing 100 rotate. As shown in FIGS. 7 and 8, in the initial state, the roller 36 has the inserted upright fork protruding pieces 31a and 31b and the roller 46 in a state in which the needle-out upright piece 40 is retracted to the left in the drawing. Usually, it has a cam for overall control (not shown), and is a position where the motor 300 is turned off by a limit switch for detecting the position by the cam and the self-holding is released. The self-holding is performed by the SW, and a series of operations of the staple needle remover is started. The self-holding switch SW supplies power to the motor 300 from the start of self-holding to the end of self-holding by a control cam (not shown).
The power source of this embodiment may be a commercial power source or a secondary battery that is always charged with a dry cell or a solar cell.

First, the binding sheet 2 is sandwiched between the lower housing 100 and the upper housing 200, and the roller 36 is set at a position where the insertion standing fork protruding pieces 31 a and 31 b are inserted into the gap 1 c of the staple needle 1. This corresponds to a binding sheet restraining step in which the exposure position of the staple needle 1 is specified from the binding sheet 2 formed by driving the U-shaped staple needle 1 into the sheet and the binding sheet 2 is sandwiched.
Here, when the rotation of the cam 204 is started, the insertion upright fork protruding pieces 31 a and 31 b start opening on the free end sides of both legs of the staple needle 1. This inserts the insert standing fork protruding pieces 31a and 31b in the direction perpendicular to the staple needle 1 into the leg portion 1a of the staple needle 1 specified in the binding paper restraining step , and the tips of both leg portions 1a of the staple needle 1 are inserted. It becomes a leg standing process which stands up as a free end.
When the cam 204 of the upper housing 200 rotates 180 degrees, the cam 204 is reciprocated by a difference L between the large diameter and the small diameter of the cam 204, and the insertion upright fork 30 is moved to the right. This maximum leftward travel distance is maintained until the cam 204 is further rotated 30 degrees. And when it rotates 30 degree | times, the insertion standing fork 30 starts retreating rapidly.

  When the motor 300 is self-held and the cam 204 of the upper housing 200 rotates 180 degrees, the roller 36 moves the insertion upright fork 30 to the right as shown in FIGS. The cam 104 of the lower housing 100 does not move the roller 46 rightward in the drawing, and the needle pulling upright piece 40 is in a stopped state.

  However, when the cam 204 of the upper housing 200 is rotated 180 degrees, the cam 104 of the lower housing 100 moves the roller 46 in the right direction as shown in the drawing, and when further rotated 90 degrees, the needle removal upright piece 40 is moved to the rightmost position. 12 and 13, the maximum rightward movement distance is maintained until the cam 104 further rotates 30 degrees, and when the cam 104 rotates 30 degrees, the insertion upright fork 40 is suddenly inserted. Retreats.

  During this time, as shown in FIG. 6, when the cam 204 of the upper housing 200 rotates 180 degrees and the insertion upright fork 30 advances to the maximum, the cam 204 of the upper housing 200 that moves forward moves the roller 36 in the right direction as shown in the figure. Therefore, the state shown in FIG. 5B is changed to the state shown in FIG. 5C. In the state of FIG. 5B, the gap 1 c of the staple needle 1 is not engaged with the insertion standing fork protruding pieces 31 a and 31 b, so that the leading end of the needle removal standing piece 40 is the central main body portion of the staple paper 2 and the staple needle 1. It becomes easy to insert between 1b and the inserted state is as shown in FIG. The state at this time is shown in FIGS. 10 and 11 to 12 and 13.

  At this time, in the state of FIG. 5 (b), both leg portions 1a are not engaged with the inserted upright fork protruding pieces 31a, 31b, but by retracting the inserted upright fork protruding pieces 31a, 31b, the binding paper 2 is removed. Since there is a margin between the leg portion 1a of the staple needle 1 to be bound and the central body portion 1b, the leading edge 41 of the staple pulling up stand piece 40 is located between the staple paper 2 and the central main body portion 1b of the staple needle 1. It becomes easy to be inserted into. Further, when the leading end of the needle pulling upright piece 40 is inserted between the spelling paper 2 and the central main body 1b of the staple needle 1, 1 is provided on the back surface of the insertion standing fork 30 so as to allow a margin on the spelling paper 2 side. A concave portion having a depth of ˜3 mm may be formed, or a convex portion protruding at the position of the central main body portion 1 b of the staple needle 1 may be formed. In either case, there is a margin between the insertion upright fork protruding pieces 31a and 31b and the leg portion 1a of the staple needle 1 that binds the binding paper 2 and the central main body portion 1b.

In particular, in the present embodiment, since the inserted upright fork projecting pieces 31a and 31b hold the both leg portions 1a of the staple needle 1 without retreating the inserted upright fork projecting pieces 31a and 31b, in this state, When the leading edge 41 of the needle pulling upright piece 40 is inserted between the paper 2 and the central main body 1b of the staple needle 1 that binds the binding paper 2, the staple needle 1 is positioned at the height of the needle pulling upright piece 40. It will escape with the change. During this time, since the external force for removing the staple needle 1 is not applied to the paper surface side of the binding paper 2, a paper surface without the removal of the staple needle 1 can be obtained.
In this process, the binding sheet 2 is formed so that the distance between the staple body 1 and the surface of the binding sheet 2 is increased in the central body 1b between the bent legs 1a of the staple needle 1 exposed on the binding sheet 2. And a staple removal step of inserting the needle release upright piece 40 between the staple needle 1 and the staple needle 1. The step of releasing the nipping of the binding paper 2 is a binding paper constraint releasing step.

  In the present embodiment, since the cam 204 of the upper housing 200 rotates 180 degrees and the inserted upright fork 30 advances to the maximum, the rotation of 30 degrees is performed when the inserted upright fork protruding pieces 31a and 31b are stopped. In the meantime, while the cam 104 of the lower housing 100 is rotated 90 degrees, the tip 41 of the needle pulling upright piece 40 is inserted between the staple paper 2 and the central main body 1b of the staple needle 1. It is what is done. At this time, since the timing of the time changing by 30 degrees is adjusted in order to match both timings, the timing of the insertion upright fork 30 and the needle upright standing piece 40 is always obtained, and the needle extraction process is highly reliable. .

  In the present embodiment, the inserted upright fork projecting pieces 31a, 31b are disposed between the inserted upright fork projecting pieces 31a, 31b and the leg 1a of the staple needle 1 for binding the binding paper 2. Since the la is not operated, the stress of the staple paper 2 is eliminated between the leg portion 1a of the staple needle 1 that binds the staple paper 2 and the central main body 1b, and the staple needle 1 is made of a soft material. Only by stopping the standing fork 30, there is a margin between the leg portion 1 a of the staple needle 1 that binds the binding paper 2 and the central main body portion 1 b without retracting the insertion standing fork protruding pieces 31 a and 31 b. Of course, the same applies to the case where the opening speed of the leg 1a of the staple needle 1 is slowed.

[Embodiment 2]
In the above-described first embodiment, the case where the upper housing 200 and the lower housing 100 are moved in parallel has been described. However, when the present invention is implemented, it can be pivotally supported on the one hand and turned freely.
In FIG. 14, the outer diameters and internal structures of the lower housing 100 and the upper housing 200 are basically the same as those in the first embodiment. On the left side of the lower housing 100 in the figure, a rotation shaft that is supported by a shaft 400 is disposed, and the lower housing 100 and the upper housing 200 are rotatable.

Further, the output shaft 301 of the motor 300 has a regular hexagonal cross section, and has the same regular hexagonal shape as the shaft hole of the cam 204 to be fitted. Moreover, it is the same regular hexagon as the shaft hole of the cam 104 to fit. When the lower housing 100 and the upper housing 200 are opened, the output shaft 301 of the motor 300 linearly moves within a limited range, so that the shaft hole of the cam 204 and the shaft hole of the cam 104 are fitted in a linear motion state. To do. Of course, in this fitting state, the play of the shaft hole of the cam 204 and the shaft hole of the cam 104 has a great influence.
Further, it is desirable to position the fitting position as a positioning mechanism between them so that the timing relationship does not go wrong.
Note that the rotating shaft 302 disposed in the shaft hole of the cam 104 shown in FIG. 14 is set for positioning the cam 104 and aligning the output shaft 301, and has a detent (not shown).

When the lower housing 100 and the upper housing 200 are opened and closed, a play may be provided on the shaft 400 or the bearing side thereof, and the fitting hole may be an ellipse. In this embodiment, it is desirable to dispose a permanent magnet at the opposite end of the shaft 400 so that the binding force in the binding paper binding step is a predetermined value or more.

Here, insertion standing fork projecting pieces 31a and 31b are inserted into both leg portions 1a of the staple needle 1 specified in the binding sheet restraining step so as to be orthogonal to the central main body portion 1b of the staple needle 1. Both leg portions of the staple needle 1 The process of raising 1a is a leg standing process. Further, the leg portions 1a of the staple needle 1 are raised in a predetermined state in the leg standing step, and the central main body portion 1b of the staple needle 1 exposed on the binding paper 2 is replaced with the central main body portion 1b of the staple needle 1 and the binding paper 2. A step of inserting the needle-exited standing piece tip 41 of the needle-exiting upright piece 40 that moves in parallel with the insertion upright fork projecting pieces 31a and 31b between the binding paper 2 and the staple needle 1 so as to be greatly separated from the surface of Is a needle removal process. The step of releasing the nipping that restricts the movement of the binding paper 2 is the binding paper restriction releasing step.

The staple needle remover according to the above-described embodiment specifies the exposed position of the staple needle 1 from the binding paper 2 formed by driving the U-shaped staple needle 1 into the paper, and clamps the binding paper 2. Inserted upright fork protruding pieces 31a and 31b are inserted into the leg portion 1a of the staple needle 1 specified in the binding paper restraining step in a direction perpendicular to the staple needle 1, and the both leg portions 1a of the staple needle 1 are inserted. The distance between the staple main body 1b and the surface of the binding paper 2 between the leg main body 1b between the bent leg portions 1a of the staple needle 1 exposed on the spelling paper 2 and the leg standing process in which the tip is raised as a free end. A staple removing step of inserting the needle pulling upright piece 40 between the binding paper 2 and the staple needle 1 and a binding paper constraint releasing step of releasing the holding of the binding paper 2.

Inserted upright fork protruding pieces 31a and 31b are inserted in the direction perpendicular to the staple needle 1 into the leg portion 1a of the staple needle 1 specified in the binding paper restraining step , and the distal ends of both leg portions 1a of the staple needle 1 are free ends. In the leg standing process for standing up, the insertion standing fork projecting pieces 31a and 31b are directly inserted into the gap 1c of the staple needle 1, and the positioning and leg standing process of the binding sheet restraining process of sandwiching the binding sheet 2 is performed. The opening of the free end of the leg portion 1a is expanded, but in the case of carrying out the present invention, it is a binding sheet restraining step of sandwiching the binding sheet 2 that specifies the exposed position of the staple needle 1 from the binding sheet 2. , the leg portion 1a of the staple 1 identified in the sheets of paper restraining step, insert the insert upright forks protruding pieces 31a, 31b in a direction intersecting orthogonally to the staple 1, the staple The tip of one of the leg portions 1a may be a leg portion standing step of standing as a free end.

  The staple needle remover of the present embodiment specifies the exposure position of the staple needle 1 from the spelling paper 2 formed by driving the U-shaped staple needle 1 into the paper, pinches the spelling paper 2, and is specified. Insertion standing fork projecting pieces 31a and 31b projecting in a direction perpendicular to the central body 1b of the staple needle 1 are inserted into the leg portion 1a of the staple needle 1 and the tips of both leg portions 1a of the staple needle 1 are erected with free ends. The center main body 1b between the bent legs 1a of the staple needle 1 exposed on the binding paper 2 is set so that the distance between the staple needle 1 and the surface of the binding paper 2 is increased. A needle pulling upright piece 40 is inserted between the needle 1 and the pinching of the binding paper 2 is released.

  Therefore, the staple needle remover according to the embodiment of the present invention specifies the staple needle 1 exposed from the binding paper 2 formed by driving the U-shaped staple needle 1 into the paper, and sandwiches the binding paper 2. The tips of the protruding upright fork protruding pieces 31a and 31b are inserted into the gap 1c of the staple needle 1 into the leg portion 1a between the bent position and the end position of the staple needle 1 thus sandwiched, and both legs of the staple needle 1 are inserted. The staple paper 1 and the staple paper 1 are stapled so that the distance between the staple needle 1 and the surface of the staple paper 2 is increased after the legs 1a of the staple needle 1 are raised in a predetermined state. A staple removal standing piece 40 is inserted between the staple 1 and the staple 1 and the binding paper 2 are released from restraint.

Therefore, since the staple needle 1 exposed from the binding paper 2 formed by driving the U-shaped staple needle 1 into the paper is restrained, the central main body portion 1b of the staple needle 1 is less than 10 mm and the leg portion 1a is 5 mm. Even if it is weak, the insertion standing fork protruding pieces 31a and 31b protruding into the gap between the leg portions 1a of the staple needle 1 can be accurately inserted into the gap 1c of the staple needle 1, and the binding paper 2 is not damaged.
Further, the inserted standing fork protruding pieces 31a and 31b are inserted into the gap 1c of the staple needle 1 in the leg portion 1a of the staple needle 1 which is constrained, and the end portion of the staple needle 1 centering on the bent position of the leg portion 1a. Since the leg portion 1a of the staple needle 1 has a free end portion because it stands up as a free end, the leg portion 1a can be displaced with a slight external force.

  Then, the leg 1a of the staple needle 1 is separated from the staple body 2 and the central body 1b of the staple needle 1 with the leg 1a of the staple needle 1 raised in a predetermined state. Since the free ends of the inserted upright fork projecting pieces 31a and 31b are opened, the binding paper 2 and the staple needle 1 can be used in a state where the force for raising the binding paper 2 and the central body 1b of the staple needle 1 is released. When an external force is applied to the central body portion 1b, the binding paper 2 is allowed to move. Therefore, even if the needle pulling upright piece 40 is inserted there, the binding paper 2 is not damaged.

In addition, one end of the leg 1a of the staple needle 1 is raised in a predetermined state, and the leading ends of the insertion standing fork protruding pieces 31a and 31b open their free ends. When the staple removal standing piece 40 is inserted therebetween, the staple needle 1 is held by the insertion standing fork protruding pieces 31a and 31b and the needle removal standing piece 40, so that the staple needle 1 is floated in a state where no external force is applied to the binding paper 2. be able to. Of course, the staple 1 can also be removed.
Therefore, if the distance between the staple paper 2 and the middle central body portion 1b of the staple needle 1 is increased by the needle pulling upright piece 40, the pinching of the staple needle 1 and the staple paper 2 can be released, and the staple needle 1 and the staple needle 1 are bound. The paper 2 can be taken out freely.

The sheets of paper restraining step in staple needle remover embodiment of the present invention, the detent is inserted a central body portion 1b side or both legs 1a side of the U-shaped staple 1 to the fitting recess 102, Since the binding paper 2 bound by the staple needle 1 is sandwiched from the upper surface and the lower surface, the U-shaped staple needle 1 bound with the binding paper 2 is fitted to the central main body 1b so as to be U-shaped. The U-shaped staple needle 1 that is difficult to catch at first is inserted into the leg portion 1a of the staple needle 1 that has been driven into the paper, and the inserted upright fork protruding pieces 31a and 31b are inserted. Therefore, both leg portions 1a of the staple needle 1 can be accurately cut and raised.

  In the leg erection step in the staple needle remover according to the embodiment of the present invention, the legs 1a of the staple needle 1 are perpendicular to the central main body 1b in the cross-section at the tips of the protruding pieces 31a, 31b of the insertion erecting fork 30. The height of the free end portions of both leg portions 1a from the central main body portion 1b of the staple needle 1 is increased by inserting the protruding pieces 31a and 31b of the insertion upright fork 30. Thus, the free ends of both leg portions 1a of the staple needle 1 can be widened.

  In the staple removing step in the staple needle remover according to the embodiment of the present invention, the staple removal standing piece 40 is inserted by inserting the staple removal standing piece 30 between the staple paper 2 and the central main body 1b of the staple needle 1. The distance between the central main body portion 1b of the staple needle 1 and the surface of the binding paper 2 is increased according to the taper of the staple needle 1, and therefore, the needle pulling upright piece 40 is provided between the binding paper 2 and the central main body portion 1b of the staple needle 1. Since the distance between the staple needle 1 and the surface of the binding paper 2 is greatly separated according to the taper of the needle pulling upright piece 40, it is not necessary to take a strict timing between other movements. It is easy to control and can be used by amateurs.

In the staple-needle remover according to the embodiment of the present invention, the binding paper restraint releasing step releases the pinching of the staple needle 1 and the binding paper 2 determined in the binding paper restraining step by increasing the interval therebetween. Therefore, it is only necessary to be able to release the pinching of the staple needle 1 determined in the binding sheet restraining step .

The staple needle remover of the above embodiment has been described as operating with a motor. However, when the present invention is implemented, the cams 104 and 204 may be rotating bodies, or the cams 104 and 204 may be rotated. A lever can be used instead of.
Moreover, although the said embodiment demonstrated the example which the upper housing 200 and the lower housing 100 move in parallel, when implementing this invention, it can also be pivotally supported on the one hand, and can also be made rotatable. .

In the above embodiment, the rotational motion of the cams 104 and 204 is converted into reciprocating motion. However, when the present invention is implemented, the insertion upright fork 30 having the protruding pieces 31a and 31b and the needle-out upright piece. Any mechanism may be used as long as it reciprocates against 40, and electric magnet control may be used.
Furthermore, if the upper housing 200 and the lower housing 100 are replaced as a handle of the scissors, a staple needle remover having a simple structure can be obtained simply by using the insertion upright fork 30 and the needle removal upright piece 40 by gripping. .

DESCRIPTION OF SYMBOLS 1 Staple needle | hook 1a Leg part 1b Central main-body part 1c Gap 2 Splicing paper 30 Insertion standing fork 31a, 31b Insertion standing fork protrusion piece 40 Needle extraction standing piece 36, 46 Roller 100 Lower housing 102 Fitting recessed part 104,204 Cam 200 Upper side Housing 300 Motor 400 Shaft

Claims (4)

A binding sheet restraining step of identifying an exposure position of the staple needle from a binding sheet formed by driving a U-shaped staple into the sheet and pinching the binding sheet to restrain the movement of the binding sheet;
A leg standing step of inserting both of the staple needle fork protrusions into the leg portions of the staple needle specified in the binding sheet restraining step so as to be perpendicular to the central main body portion of the staple needle and to stand the leg portions of the staple needle. When,
In the leg erection step, both the leg portions of the staple needle are erected in a predetermined state, and the central main body portion of the staple needle exposed to the binding paper is formed between the central main body portion of the staple needle and the surface of the binding paper. A needle pulling step of inserting a needle pull-up standing piece that moves in parallel with the insertion stand-up fork protruding piece between the binding paper and the staple needle so as to greatly increase the distance;
A staple needle remover, comprising: a binding paper constraint releasing step of releasing the clamping in which movement of the binding paper is restrained by the binding paper restraining step by increasing a clamping interval therebetween . In the binding sheet restraining step , the central body or both legs of the U-shaped staples are inserted into the fitting recesses to restrain the movement, and the binding sheets bound by the staples are clamped between the upper surface and the lower surface. The remover for staples according to claim 1.   In the leg standing step, the leg of the staple needle stands up at a right angle with respect to the central main body portion of the staple needle in the cross section of the insertion standing fork projecting piece, and by inserting the insertion standing fork projecting piece, 3. The staple needle remover according to claim 1, wherein the height of the free ends of both leg portions is increased from the central main body portion of the staple needle.   The needle pulling step includes inserting the needle pulling upright piece between the binding sheet and the central main body portion of the staple needle, and according to the taper of the needle pulling upright piece, The staple needle remover according to any one of claims 1 to 3, wherein the distance from the surface of the binding paper is increased.

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