JPH0348096Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an apparatus for separating a bundle of paper sheets, which is formed by binding one side of each of a plurality of paper sheets by gluing or the like, into individual sheets.

(Prior art) For example, when copying using a copying machine, normally,
The specified paper for copy paper is being used. However, in case of emergency or when using a copying machine at home, it is convenient and economical to copy on relatively inexpensive and easily available paper such as report paper or calculation paper. However, report sheets and the like are bound by gluing one side edge of each sheet. Therefore, when such report paper or the like is used as copy paper, it is necessary to separate it into individual sheets during copying.

Recently, copying machines have been developed that can copy only a specific portion of a single document onto a designated position on copy paper. With such a copying machine, for example, it is possible to reproduce each customer's address, name, etc. from a single customer list onto each shipping slip. However, like the above-mentioned report paper, shipping slips and the like have one side edge of each sheet bound by gluing or the like, so it is necessary to separate the bundle of sheets into individual sheets when copying.

Conventionally, separating a bundle of sheets into individual sheets has been done manually, which is extremely troublesome and has poor work efficiency.

(Problems to be Solved by the Invention) The present invention solves the above-mentioned conventional problems, and its purpose is to provide an apparatus that can reliably separate each sheet from a bundle of sheets. Another object of the present invention is to provide an apparatus that eliminates the trouble of separating a bundle of sheets into individual sheets and improves the efficiency of handling the bundle of sheets. Another object of the present invention is to provide an apparatus for separating paper sheets from a bundle of paper sheets, which can be easily applied to a copying machine or the like.

(Means for Solving the Problems) The device of the present invention is a device that separates a bundle of paper sheets into each sheet by binding one side edge of a plurality of sheets,
One corner of the unstitched side opposite the bound side edge of the topmost sheet of paper,
a deflecting means that has an appropriate angle with respect to the side edge and is moved in a direction approaching the bound side edge to impart deflection to the sheet; The paper sheet is moved at an angle in a direction away from the bound side edge, and the deflection is sequentially eliminated from the corner of the bound side edge adjacent to the corner, while the paper sheet is moved in a direction away from the bound side edge. and a feeding means for separating from the side edge, thereby achieving the above object.

(Example) The present invention will be described below with reference to embodiments.

As shown in FIG. 1, the apparatus of the present invention includes a tray 10 on which a stack of paper sheets 40 (dotted chain line in FIG. 1), one side of which is bound by gluing or the like, is placed;
Two sets of roller devices 20 and 30 installed at
It becomes more. The tray 10 has a box shape with an open top and one side, and the bound portion of the bundle of paper sheets 40 is located on the inner back side opposite to the open side. The roller device 20 located approximately in the center of the tray 10 bends the uppermost sheet of the sheet bundle 40 placed on the tray 10, and the other roller device 3
0 separates the sheet from the remaining sheet bundle, and feeds the separated sheet in a predetermined direction.

As shown in FIGS. 2 and 3, the roller device 20 for applying deflection has a drive shaft 21 installed above the tray 10 so as to be substantially parallel to one diagonal line of the tray 10, for example. The drive shaft 2
A motor 29 is connected to the end of 1. A bending roller 22 is suspended from the drive shaft 21 in parallel to the drive shaft 21 in the middle below the drive shaft 21 .
As shown in FIG. 5, the deflecting roller 22 contacts the uppermost sheet 41 in the bundle of sheets 40 and bends the unbound side 403 of the sheet 41 opposite to the bound side edge 400. One corner 401 of the paper sheet 41 is moved in a direction that has an appropriate angle (for example, 45 degrees) with respect to the side edge 403 and approaches the side edge 400 to give the paper sheet 41 appropriate flexure. Flexing roller 2
A pulley 24 is fixed to one side of 2. A pulley 23 externally fitted and fixed to the drive shaft 21 is disposed above the pulley 24. Both pulleys 23, 2
A timing belt 25 is wound around the roller 4, and the rotation of the drive shaft 21 is transmitted to the bending roller 22.

A connecting rod 26 is rotatably supported in the middle by the drive shaft 21 . One side of the bending roller 22 is rotatably attached to the lower end of the connecting rod 26. Further, the tip of a plunger 27a of a solenoid 27 is attached to the upper end of the connecting rod 26. The solenoid 27 is mounted on the support plate 11. This support plate 11 is fixed to a suitable fixing part, for example, on one side of the tray 10.
A push spring 28 is fitted onto the base end of the plunger 27a, and urges the plunger 27a toward the distal end (advancing side). plunger 2
When the solenoid 27 is demagnetized, the solenoid 7a advances due to the urging force of the push spring 28 and connects the connecting rod 26.
is approximately vertical. Conversely, when the solenoid 27 is energized, the plunger 27a retracts and the deflection roller 21 rotates upward as shown by the two-dot chain line in FIG.

The other roller device 30 is located near one open side of the tray 10. The roller device 30 has a width of 10 to 30 with respect to the open edge of the tray 10.
It has a drive shaft 31 that is inclined by a degree. The drive shaft 3
A motor 39 is connected to the end of the motor 1 . Midway below the drive shaft 31 is a feed roller 32 that transports the uppermost sheet 41 in the sheet bundle 40 from one open side of the tray 10 to the outside.
The drive shaft 31 is suspended in parallel with the drive shaft 31 . On one side of the feeding roller 32, the above-mentioned bending roller 20 is mounted.
Similarly, a pulley 34 is fixed. The pulley 3
A pulley 33 externally fitted and fixed to the drive shaft 31 is disposed above the drive shaft 4. A timing belt 35 is wound around both pulleys 33 and 34, and rotation of the drive shaft 31 is transmitted to the feeding roller 32.

The feeding roller 32 is configured to be rotated upward by a solenoid 37, similar to the above-mentioned bending roller 22. The details are the same as those for the bending roller 22, so the explanation will be omitted.

As shown in FIG. 3, a presser plate 14 is provided on the bottom surface 12 of the tray 10 via a presser spring 13. As shown in FIG. A stack of paper sheets 40 is placed on the presser plate 14. Further, as shown in FIG. 4, an abutment plate 15 extending inward is provided on the upper surface of the side surface (inner inner side surface) opposite to the open side of the tray 10. The bound portion 400 of the bundle of paper sheets 40 placed on the plate 14 is held between the contact plate 15 and the presser plate 1.
It is sandwiched between 4 and 4.

(Operation) The operation of the apparatus according to the present invention having such a configuration will be explained based on FIGS. 5a to 5e. In the figure,
The roller indicated by the two-dot chain line is rotated upward and the paper bundle 40 is rotated upward.
indicates that it is not in contact with.

First, a bundle of paper sheets 40 bound on one side by gluing or the like is placed on the tray 10 so that the bound side edges 400 are located at the innermost part. in this case,
The bending roller 22 and the feeding roller 32 are rotated upward, and the uppermost sheet 4 in the sheet bundle 40 is rotated upward.
1 (see Figure 5a). Then,
The bending roller 22 is rotated downward to come into contact with the uppermost sheet 41 of the sheet bundle 40, and the bending roller 22 is rotated. As a result, the uppermost sheet 41 is moved in a direction perpendicular to the axis of the deflecting roller 22, and one corner 401 of the unstitched side 403 opposite to the bound side edge 400 is moved from this corner. 40
When approaching the corner 402 diagonally opposite to the paper sheet 1, since one side 400 of the sheet is bound, it bends as shown in FIG. 5b. Next, the bending roller 22 is rotated upward, and the feeding roller 32 is rotated downward to come into contact with the paper sheet 41. When the feeding roller 32 is rotated in this state, the paper sheet 41 is moved in a direction perpendicular to the axis of the feeding roller 32, as shown in FIG. 5c. At this time, the sheet 41 is moved in a direction away from the bound side edge 400 at an angle of about 10 to 30 degrees with respect to the remaining sheet bundle 40 located below. As a result, the bending of the paper sheet 41 includes the corner portion 401,
The bound side edges 400 are sequentially removed from the side 404 side that is perpendicular to the side edges 400 . Side edges 40 bound at the same time
0 is also released sequentially from the side 404 side. In this way, the sheet 41 is separated from the other sheet bundles 40. Thereafter, the paper sheet 41 is ejected from the tray 10 in an inclined state by the feeding roller 32, as shown in FIG. 5e. When the sheet 41 is discharged, the bending roller 22 is rotated downward, and the above-described operation is repeated in sequence, so that the bundle of sheets is successively separated into individual sheets.

The device of the present invention is used by being attached to, for example, a copying machine.

Note that the number of sheets in the sheet bundle 40 decreases,
If it is difficult to bend and separate only one sheet of paper, a structure may be used in which a piece of cardboard or the like is bent as appropriate between the multiple sheets of paper at the bottom of the bundle of sheets and other sheets. good.

Further, the means for rotating the bending roller 22 and the feeding roller 32 upward is not limited to a solenoid, and a cam may be used.

(Effects) According to the device of the present invention, each sheet can be reliably separated from a bundle of sheets in this way. Therefore, the trouble of separating each sheet from a bundle of sheets is eliminated. If you use this device by attaching it to a copying machine,
The labor of separating each sheet into sheets is eliminated, and work efficiency is significantly improved.

[Brief explanation of drawings]

Fig. 1 is a plan view showing an embodiment of the device of the present invention, Fig. 2 is an elevational view of the main part taken along the - line in Fig. 1, and Fig. 3 is an elevational view of the main part taken along the - line in Fig. 1. , Fig. 4 is a sectional view of the main part of the tray, Fig. 5 a to e
FIG. 2 is a schematic plan view for explaining the operation of the device of the present invention. 10...tray, 20, 30... roller device,
22...Bending roller, 23, 24...Pulley, 2
5...Timing belt, 27...Solenoid,
29...Motor, 32...Feeding roller, 33,3
4...Pulley, 35...Timing belt, 37
... Solenoid, 39 ... Motor, 40 ... Paper leaf bundle, 41 ... Paper leaf.

Claims (1)

[Claims for Utility Model Registration] 1. A device for separating a stack of paper sheets into individual sheets, which is formed by binding one side edge of a plurality of sheets, in which the topmost one sheet is bound. One corner of the unstitched side opposite to the side edge is moved in a direction that has an appropriate angle with respect to the side edge and approaches the bound side edge to impart flexure to the sheet. a deflection means; for moving the moved corner in a direction having an appropriate angle with respect to the side edge and away from the bound side edge; A sheet separation device comprising: a feeding means for removing the sheet from the bound side edge while sequentially eliminating the bending from the corner. 2. The paper sheet separating device according to claim 1, wherein the bending means and the feeding means are rollers. 3. The sheet separation device according to claim 1, wherein the bending means and the feeding means are capable of moving toward and away from the uppermost sheet in the bundle of sheets. 4. The sheet separation device according to claim 3, wherein the bending means and the feeding means are brought into contact with and separated from the uppermost sheet of the bundle of sheets by means of a solenoid.