JPH01118490A - Binding structure and binding device of sheet - Google Patents

Abstract

PURPOSE: To make it possible to keep a paper leaf bound despite the removal of part of the paper leaf by folding 180 deg. a tongue-like piece which is cut out of the paper leaf in parallel with the paper leaf and introducing one of the ends of the tongue- like piece into one of through holes from one of the faces of the paper leaf and the other through hole from the other face. CONSTITUTION: Plural pieces of paper leaf 11 are placed on the upper face of a table 5 in such a manner that their binding spots are located in slits 5a, 5b. Then when a cutting line 9 is moved downward, a tongue-like piece 11a is formed with its fixed end connected to the paper leaf 11 and also with a free end, following the breaking into the paper leaves 11 of a cutting blade 9a and punching blades 9b, 9c, and at the same time, through holes 11b, 11c are formed. Further, the free end hangs downward and then is introduced into the through hole 11b by a force-in claw 23d while being replicated toward the through hole 11b. After this process, the free end is introduced into a retraction hole 27d passing through the through hole 11b. On the other hand, the plural pieces of the paper leaf 11 are bound by introducing the tongue-like piece 11a into the through hole 11b from the back face of the paper leaf 11 to be positioned on the front face of the paper leaf 11 and further, introducing the piece 11a into the through hole 11c to be positioned on the back face.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a paper leaf binding structure and a binding device for integrally binding a plurality of overlapping paper sheets using a portion thereof.

[Prior Art] Conventionally, as a method of binding multiple sheets of paper, such as copyable slip paper, by using a part of the paper sheets without using a metal needle such as a staple, A tongue is formed by cutting out a portion of a plurality of sheets of paper, a slit is formed on the fixed side of the tongue, and the tongue is inserted into the slit from the back side of the paper sheet to the front side. By inserting the sheets into the paper, multiple sheets of paper are bound together.

[Problems to be solved by the invention However, in the above-described conventional binding method, when a sheet located on the front side of a plurality of bound sheets is taken out, the tongue-like shape against the slit is removed. There is a problem in that the inserted state of the sheet is released and the sheets are likely to separate into pieces. Furthermore, when printing a plurality of sheets of paper bound as described above by attaching them to a printing device, the tongue-shaped piece protrudes from the front side, so that the print head that moves along the printing line is moved by the tongue-shaped piece. There is also the problem that contact with the paper may cause printing defects.

[Object of the Invention] In view of the above-mentioned drawbacks of the conventional art, the object of the present invention is to provide a printing device that is capable of maintaining the bound state of each sheet of paper even if a portion of the bound sheets of paper is removed, and that is attached to a printing device. The object of the present invention is to provide a binding structure and binding device for paper sheets that can prevent printing defects in some cases.

[Means for Solving the Problems] Therefore, the present invention involves folding a tongue-like piece cut out from a sheet of paper approximately 180 degrees so that it is parallel to the sheet of paper, with one end being a free end and the other end being a fixed end. One end of the tongue-shaped piece is inserted into one of the two through holes provided side by side with the other end from one side of the paper sheet, and the other end is inserted into the other through hole. By inserting the sheet from the other side of the sheet into the sheet, a binding structure for the sheet is created, and the sheet to be bound is provided with a tongue-like piece with one end as a free end and the other end as a fixed end, and a tongue piece arranged in line with the other end. cutting means for cutting the two through holes; folding the tongue-like piece approximately 180 degrees so as to be parallel to the sheet of paper; and cutting one end of the tongue-like piece into one of the two through-holes; a push lever means inserted into one through hole;
A binding device is constituted by a retraction lever means for inserting one end of the tongue-like piece inserted into the through hole into another through hole.

[Operation of the Invention] Since the present invention is constructed as described above, the cutting means cuts a plurality of sheets of paper stacked one on top of the other into a tongue-like piece whose one end is free and whose other end is fixed, and two pieces of paper. After forming the through hole,
The tongue-shaped piece is folded back and inserted into the through hole on the fixed end side by the push-in lever means. Next, the tongue-like piece inserted into the through hole is inserted into another through-hole by means of the retracting lever means, so that the paper sheets are bound by the tongue-like piece. In this way, the tongue-shaped piece cut out is inserted from the back side of the paper sheet into one of the through holes and positioned on the front side, and then inserted through the other one and positioned on the back side, so that the sheets are overlapped. Multiple sheets of paper are bound together.

[Example code] An embodiment of the present invention will be described below with reference to the drawings.

Fig. 1 is a partially cutaway side view schematically showing a paper binding device according to the present invention, Fig. 2 is a longitudinal cross-sectional view taken along line II-II in Fig. 1, and Fig. 3 is a push arm and a cross-sectional view. It is a perspective view of a road body showing a state of connection with a retractable arm, and the frame 3 of the binding device 1 has a planar part on the upper surface on which a plurality of stacked paper sheets 11, which will be described later, are placed, and the frame 3 is pushed into the inside. A table 5 having a hollow portion in which the lever 23, retraction lever 27, etc. are accommodated, and a support body 7 that stands upward from the table 5 are integrally formed. The support body 7 has a pair of upper and lower support arms 7 extending horizontally at a required interval.
a is integrally formed. A prismatic cutting shaft 9 constituting a cutting means is supported in a shaft support hole 7b formed in the support arm 7a so as to be slidable in the vertical direction. The lower end surface of the cutting shaft 9 has a cutting blade 9a for forming a tongue-like piece 11a (described later) and two first and second through holes 11b (described later).
・First and second punching blades 9b for punching and forming 11c・
9C are integrally formed. Further, on the upper surface of the table 5, a first slit 5a forming the die of the cutting blade 9a and the first punching blade 9b, and a second slit 5b forming the die of the second punching blade 9c are formed. As the cutting shaft 9 moves downward, the first slit 5a
When the notch blade 9a and the first punching blade 9b are inserted, the tongue-shaped piece 11a and the first through hole 11b also
When the second punching blade 9C is inserted into the slit 5b, a second through hole 11c is integrally formed. Incidentally, an opening 5c is formed on the left side of the top surface of the table 5 shown in FIG. 1, into which a push-in lever 23, which will be described later, is inserted.

A lever 13 whose longitudinal section is approximately mouth-shaped and whose side walls are located on both sides of the support arm 78 is rotatably supported on the support body 7 about a shaft 15 . A notch 13a through which the support arm 78 and cutting shaft 9 can be inserted is formed on the upper surface of the lever 13 corresponding to the support arm 7a, and rotation of the lever 13 is permitted by the notch 13a. The notch 13
The lever 13 is connected via a shaft 17 to the cutting shaft 9 inserted through the hole a. As a result, when the lever 13 is rotated about the shaft 15, the cutting shaft 9 is moved up and down. Two leaf springs 19 are elastically deformably attached to one outer surface of the lever 13 corresponding to the base end of the rotation, each having an engaging portion 19a bent such that its tip portion protrudes inward. ing,.

Further, a pressing arm 21 is rotatably supported on a shaft 15 located on both sides of the lever 13.

The pressing arm 21 has a through hole 21 through which the cutting shaft 9 is inserted.
a, and a cam portion 21 that abuts against a protrusion 13b formed by cutting and raising the pivoting base end of the lever 13.
c are integrally formed.

The pressing arm 21 is rotated about the shaft 15 due to the contact between the protruding piece 13b and the cam portion 21c as the lever 13 is rotated. A shaft 15 corresponding to the inside of the lever 13
A push lever 23 is rotatably supported. The push-in lever 23 has a support portion 23 that is pivotally supported by the shaft 15.
a, and a push-in portion 23b, which extends downward from the cutting shaft 9 from the lower end of the support portion 23a and has a substantially mouth-shaped longitudinal section, are integrally formed. The push-in portion 23b has a looped end.
The other end of a wire spring 25 is hooked to the arm 3, and the elastic force of the wire spring 25 urges the pushing lever 23 to rotate clockwise about the shaft 15. The support part 23
An engagement hole 23c is formed in the hole 23c so that the engagement portion 19a of the leaf spring 19 engages when the lever 13 is rotated to a substantially horizontal position. Moreover, the pushing part 23
A pushing pawl 23d is provided at the tip of b so that it can be inserted into the first through hole 11b formed by the first punching blade 9b. A retraction lever 27 is rotatably supported around a shaft 29 on the lower surface of the room 3 corresponding to the tip of the push-in portion 23b. The retraction lever 27 is integrally formed with a support portion 27a supported by the shaft 29 and a retraction portion 27b that can be curved from the lower end of the support portion 27a and inserted into the second through hole 11c upwards. There is. A long hole 27c is formed in the support portion 27a, and a shaft 31 attached to the tip of the push-in portion 23b is slidably supported in the long hole 27c. As a result, as the push-in lever 23 rotates about the shaft 15, the pull-in lever 2
7 is rotated around an axis 29. In addition, the retracting portion 2
At the tip of 7b is a tongue-like piece 11 pushed into the first through hole 11b.
An elliptical lead-in hole 27d into which the free end of a is inserted is formed. In the figure, 22 is a stopper shaft that restricts the rotation of the push lever 23 in the clockwise direction, and 24 is a part of the stopper that restricts the rotation of the push lever 230 in the counterclockwise direction.

Next, the operation of the binding device 1 configured as described above will be explained as follows.
This will be explained according to FIGS. 10 to 10.

As shown in FIGS. 4 and 5, a plurality of stacked sheets of paper 11 are placed on the top surface of the table 5 so that their binding points are located in the first slit 5a and the second slit 5b. Thereafter, when the lever 13 is rotated clockwise about the shaft 15, the cutting shaft 9 is moved downward. At this time, the protrusion 13 that moves with the rotation of the lever 13
The pressing arm 21 is rotated clockwise about the shaft 15 by the contact of the cam part 21c with the cam part 21c. As a result, the sheet of paper 11 placed on the upper surface of the table 5 is pressed by the pressing arm 21, and its displacement is regulated.

As shown in FIG. 6, when the lever 13 is further rotated in the 31 direction from the above state and the cutting shaft 9 is moved downward, the cutting blade 9 cuts into the sheet 11 placed on the top surface of the table 5.
a. As the first and second handling blades 9b and 9C enter, the fixed end becomes continuous with the paper sheet 11, and the tongue-like piece 11a having a free end cooperates with the cutting blade 9a and the first slit 5a. The first and second through holes 11b and 1 are formed.
1C is formed by the cooperation of the first and second punching blades 9b and 9G and the first slit 5a and second slit 5b.

When the lever 13 is rotated to a substantially horizontal position, the engagement portion 1 of the leaf spring 19 slides against the outer surface of the support portion 23a.
9a is elastically deformed and engaged with the engagement hole 23c, and the lever 13 and the push-in bar 23 are connected. At this time,
The free end of the stamped tongue piece 11a is suspended downward by the cutting blade 9a.

As shown in FIGS. 7 and 8, when the lever 13 is rotated counterclockwise about the shaft 15 from the above state to the position shown in FIG. Then, the cutting blade 9a is extracted from the incision location of the sheet 11 corresponding to the tongue-like piece 11a, and the first and second punching blades 9b and 9C are extracted from the first and second through holes 11b and 11C. Further, as the lever 13 is rotated, the push lever 23 connected to the base end of the lever 13 is rotated counterclockwise about the shaft 15 against the elastic force of the wire spring 25. At the same time, the retraction lever 27 is rotated counterclockwise about the shaft 29. Then, as shown in FIG. 8, the tongue 11a is inserted into the first through hole 11b while being folded back toward the first through hole 11b by the pushing claw 23d pressed against the tongue 11a hanging downward. Further, the retracting lever 27 rotates counterclockwise almost simultaneously with the insertion of the tongue piece 11a into the first through hole 11b, so that the retracting portion 27b is positioned so that its retracting hole 27d is located on the upper surface side of the sheet 11. 2nd through hole 1
It is inserted into 1C. Then, the first
The free end of the tongue-like piece 11a located on the upper surface side of the sheet of paper 11 is inserted through the through-hole 11b.

As shown in FIGS. 9 and 10, when the lever 13 is further rotated counterclockwise from the above state, the stopper part 24 restricts the rotation of the push lever 23 in the counterclockwise direction. With the elastic deformation of the leaf spring 19, the engagement of the engagement portion 19a with the engagement hole 23c is released.

As a result, the push lever 23 is rotated clockwise around the shaft 15 by the elastic force of the wire spring 25, and as the push lever 23 is rotated, the retraction lever 27 is rotated clockwise around the shaft 29. be moved. and entry hole 2
When the retracting portion 27b is pulled out from the second through hole 11c while the free end of the tongue 11a is inserted and held in the second through hole 11C, the tongue 11a is inserted into the second through hole 11C. After the free end thereof is positioned on the back side of the sheet 11, the holding state by the lead-in hole 27d is released. Further, the pressing arm 21 is rotated counterclockwise about the shaft 15 due to contact between the protruding piece 13b that moves as the lever 13 is rotated in the counterclockwise direction and the cam portion 21C.
The pressing state of the sheet 11 by the pressing arm 21 is released. As shown in FIG.
After inserting the first through-hole 11b from the back side of the sheet 11 and positioning it on the front side, the second through-hole 11C is further inserted and the sheet 11 is placed on the back side, thereby binding.

In this way, in this embodiment, the tongue-shaped piece 11a formed by cutting a part of the paper sheet 11 is inserted through the first through-hole 11b.
After being positioned on the front side of the sheet 11, the second through hole 11G is inserted and its free end is positioned on the back side of the paper sheet 11, so that it is located on the front side of the plurality of bound sheets 11. paper leaf 11
Even when the sheet is removed, the bound state of other sheets 11 can be maintained. Furthermore, when a plurality of sheets 11 bound as described above are attached to a printing device and printed,
Since the free end of the tongue 11a is located on the back side of the sheet 11, it is possible to avoid contact with the moving print head.

[Effects of the Invention] Therefore, the present invention makes it possible to maintain the binding condition of each sheet even if a part of the bound sheets is removed, and also prevents printing defects when installed in a printing device. It is possible to provide a paper sheet binding structure and a binding device that can prevent this.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view schematically showing the binding device according to the present invention, Fig. 2 is a longitudinal sectional view taken along line ll-Tl in Fig. 1, and Fig. 3 is a push-in arm and a retraction arm. A road body perspective view showing a state of connection with the road body, and FIGS. 4 to 10 are explanatory diagrams showing the operation. In the figure, 1 is a binding device, 9 is a cutting shaft as a cutting means, 11
is a paper leaf, 11a is a tongue-like piece, 11b-11C is a through hole, 23
27 is a push-in lever, and 27 is a retraction bar. Patent Applicant Brother Industries, Ltd. Agent Patent Attorney Ken Ito − ΦTo-Concave-1/″″′

Claims (2)

[Claims] (1), one end is a free end and the other end is a fixed end, and a tongue-shaped piece cut out from a sheet of paper is approximately 18 mm parallel to the sheet of paper.
Bend it 0 degrees, insert one end of the tongue-like piece into one of the two through-holes provided side by side with the other end from one side of the sheet, and insert the other one into the through-hole from one side of the sheet. A binding structure for paper sheets, characterized in that the paper sheets are inserted into the through holes from the other side of the paper sheets. (2) a tongue-like piece with one end as a free end and the other end as a fixed end in the paper sheets to be bound, and a cutting means for cutting out two through holes arranged side by side on the other end; a pushing lever means bent approximately 180 degrees so as to be parallel to the sheet of paper, and inserting one end of the tongue into one of the two through holes; a retraction lever means for inserting one end of the tongue-like piece into another through hole.