JPH03213399A - Page turn-over apparatus - Google Patents

Abstract

PURPOSE:To set a paper sheet turned over according to a use to a desired position by returning other stacked paper sheets by a reverse roller until one paper sheet is left between a feed roller and the reverse roller and pressing one left paper sheet to turn over the same to a predetermined position in the direction reverse to a paper sheet support. CONSTITUTION:A booklet 1 is opened to be placed on a booklet support plate 6 and a shaking body 17 is opened to suspend the paper sheets 2 of a desired page from the opening part. Continuously, the paper sheets 2 are grasped by a feed roller 7 and a reverse roller 8 by obtaining the energizing force from a spring 18 and the feed roller 7 and the reverse roller 8 are rotated in a clockwise direction to upwardly return the paper sheets 2 by the reverse roller 8 until one paper sheet 2 is left between the feed roller 7 and the reverse roller 8 and the paper sheets 2 are supported by a paper sheet support 9. Subsequently, the shaking body 17 is opened to allow the feed roller 7 and the reverse roller 8 to retract toward both left and right sides and a movable plate 13 is revolved to certainly turn over only one paper sheet 2 to the left. Next, the data of the turned over paper sheet 2 is read or photographed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a page turning device for turning over bound sheets of paper.

A scanner that copies the contents of a sheet of paper that is bound on one side, such as a conventional technical book, or a photographing device that makes a microfilm of the same document, or a scanner that copies the contents of a sheet of paper that is bound on one side, or In printing devices that write information on pages, it is extremely troublesome to turn the pages manually.

From this, as shown in Figure 7(a), the opened passbook 5
The friction member 52 is brought into contact with the paper sheet 51 of 0 and rotated to raise the paper sheet 51 as shown in FIG. 7(b) and (c). At this time, as shown in FIG. 7(b) A separating bin 53 is inserted under the raised sheet 51 to prevent the next page of sheets 51 from overlapping, and the friction member 52 is moved as shown in FIGS. 7(d) and (e). There is a page turning device in which a sheet of paper 51 that has been raised is turned over to the opposite side. Furthermore, as shown in FIG. 8, there is an invention in which marks 54 are attached to each page of a bankbook 50, and multiple turning is prevented by detecting these marks 54. In addition, although not shown, as described in Japanese Patent Application Laid-Open No. 1-176595, a friction member is used to separate the paper sheets under the curved portion that occurs when the passbook is conveyed by pressing it against the top end of the opened passbook. There is a page turning device that separates paper sheets one by one by inserting a bin. Furthermore, as described in Japanese Patent Application Laid-Open No. 56-784.7, when a pair of friction rollers are rotated in the same direction and a plurality of sheets of paper are inserted between these friction rollers, , one friction roller feeds the top layer of paper in one direction, while the other friction roller returns the next layer of paper in the opposite direction starting from the bottom layer, thereby preventing multiple feeding of paper sheets. There is a sheet feeding device that does this.

Problems to be Solved by the Invention The page turning device shown in FIG. 7 and the invention described in Japanese Patent Application Laid-open No. 1-176595 are intended for turning the pages of passbooks whose size is approximately constant and whose paper sheets are thick. However, if the thickness and paper quality of the paper sheets differ, it is not possible to turn the pages reliably. Photographic devices such as scanners and microfilm collect information on a wide range of subjects, and the thickness and quality of paper sheets vary depending on books and magazines.Printing devices also require printing not only on passbooks but also on other notebooks. There is,
In either case, the thickness and paper quality of the paper sheets often differ, so a highly versatile page turning device is required. Therefore, as shown in FIG. 8, it is unrealistic to apply to books, magazines, or notebooks a mark to be detected on each page of a passbook to prevent multiple page-turning.

Means for Solving the Problems A booklet support plate is provided which has a support surface for supporting an opened booklet and an opening formed in the support surface through which sheets of some pages of the booklet protrude, and from the opening. A feed roller that rotates in a direction that contacts the protruding paper leaf of the booklet and pulls the paper leaf against the booklet support plate, and a feed roller that faces the feed roller with the paper leaf protruding from the opening portion in between. A holding means is provided for holding a reverse roller that is arranged and rotates in the same direction as the feed roller so as to be able to move toward and away from the feed roller; A paper leaf support is provided which is biased and moves freely back and forth in a space between one end of the booklet support plate and the reverse roller to support an end of the paper leaf, and is opposed to the binding portion of the booklet. A pressure means is provided for applying pressure to the sheet from a position opposite to the sheet support.

Operation A part of the opened sheet of the booklet supported by the booklet support plate can be held between the feed roller and the reverse roller, and in this state, the feed roller pulls the sheet from the booklet support plate while the reverse roller moves. In order to return the paper sheet to the booklet support plate side, the reverse roller returns the other overlapping paper sheets until one sheet remains between the feed roller and the reverse roller, and the returned paper sheet is supported by the paper sheet support. Therefore, the pressure means can press the single sheet of paper left between the feed roller and the reverse roller to move this single sheet of paper to a predetermined position in the opposite direction to the sheet support. By turning the sheet twice and retracting the sheet support from the space between the booklet support plate and the reverse roller, the sheet to be turned next is returned by its own weight to a position where it interferes with the pressing means. I can do it.

Embodiment An embodiment of the present invention will be explained based on FIGS. 1 to 4. 1 is a large number of sheets of paper such as magazines, books, notebooks, etc. 2
3 is the binding part of this booklet l. A booklet support plate 6 is provided on a part of the support surface 4 on which the booklet 1 is placed, and has an opening 5 at one end from which the sheet 2 of the open portion of the booklet 1 hangs. This booklet support plate 6 is connected to a drive mechanism (not shown) and is held so as to be able to reciprocate in the direction of arrow A in FIG. Furthermore, a feed roller 7 and a reverse roller 8, which rotate clockwise, are rotatably provided on both sides of a vertical plane passing through the center of the opening S. Further, a support 1 is provided for the space between the right end of the booklet support plate 6 and the reverse roller 8.
A plurality of paper leaf supports 9 are provided which rotate freely back and forth about 0. The pillar 10, as shown in FIG.
It is fixed to a support arm 12 that is rotatably supported by a support shaft 11 that extends along a straight line passing through the binding section 3 .

Furthermore, the feed roller 7 and the reverse roller 8
A movable plate 13, which is a pressurizing means, is provided with one end thereof located within a vertical plane passing between the feed roller rough and the other end thereof located outside the feed roller rough and supported so as to be movable up and down.

Next, as shown in FIG. 4(a), a rocking body 17, which is a holding means, has a pair of arms 15 and 16 that rotate around a fulcrum part 14 located in a vertical plane passing through the binding part 3. The feed roller 7 and the reverse roller 8 are rotatably held at the tips of these arms 15 and 16.

Further, the arms 15 and 16 are provided with a spring 1 which is a biasing means.
8 is biased inwardly.

Here, as shown in FIG. 3, F is the feed roller 7.
The feeding force applied to the first sheet 2, FC is the feeding force applied by the first sheet 2 to the second sheet 2, and FD, F is the return resistance force between the sheets 2. , T, is the torque of the torque limiter that connects the reverse roller 8 to the motor, TA is the return force of the torque limiter, PR is the pressing force of the reverse roller 8 against the paper sheet 2, RA is the resistance force between the paper sheets 2, and RS is the radius of the reverse roller 8, m is the weight of one sheet of paper 2, μ is the coefficient of friction between the feed roller 7 and reverse roller 8 and the sheet of paper 2, μ is the coefficient of friction between the sheets of paper 2, and Then, the conditions for conveying one sheet of paper 2 by the feed roller 7 are: FB>TA+RA Also, FB=μ, P5°RA=μ1
m Also, the conditions for returning the second sheet of paper 2 by the reverse roller 8 are: T A > F C + F D + p E, and FC2 μB PB * Fp = μ1 m.

FE-μ, 2m From the 00 formula, the conditions for separating one sheet of paper 2 from two sheets of paper 2 are as follows: TA, p, , μ, which satisfies the above conditions, is μ of commercially available paper sheets.
11 m, the frictional force of the feed roller rough against the sheet 2 can be made larger than the frictional force of the reverse roller 8 against the sheet 2. Therefore, as shown in FIG. 3(b), when a plurality of sheets 2 are sandwiched between the feed roller 7 and the reverse roller 8, the sheets 2 that come into contact with the reverse roller 8 one after another are pushed upwards. be returned. This operation is as shown in Figure 3(a).
This continues until there is only one sheet of paper 2 between both rollers 7 and 8,
In the state shown in FIG. 3(a), the frictional force of the feed roller 7 against the paper sheet 2 is
Since the frictional force is greater than the frictional force of , the sheet 2 will not be returned upward.

In such a configuration, as shown in FIG. 4(a),
The booklet 1 is opened and placed on the booklet support plate 6, the oscillator 17 is opened, and the sheet 2 of a desired page is made to hang down from the opening 5. Subsequently, as shown in FIG. 4(b), the swinging body 17 is closed and the urging force of the spring 18 is obtained, and the paper sheet 2 is held between the feed roller 7 and the reverse roller 8.
and reverse roller 8 clockwise, the third
As shown in FIG. 4(c) to e), the paper sheet 2 between the feed roller 7 and the reverse roller 8 becomes one sheet as shown in FIG. The leaf 2 is returned upwards by a reverse roller 8 and supported by a leaf support 9. Next, as shown in FIG. 4(f), the swinging body 17 is opened to retract the feed roller 7 and reverse roller 8 to both the left and right sides, and in this state, as shown in FIG. 4(g), By rotating the movable plate 13 upward using its left end as a fulcrum, only one sheet 2 can be reliably turned over to the left. Next, the turned sheet 2 may be positioned at a desired position depending on the purpose, such as reading or photographing information on the turned sheet 2, or printing information on the turned sheet 2. In this embodiment, the manner in which an image of a paper sheet 2 is read will be described.

That is, as shown in FIG. 4(h), the scanner 19 is brought close to the booklet support plate 6 side, and as shown in FIG. 4(i),
The scanner 19 is attached to the opened sheet 2 while moving the support arm 12 upward together with the sheet support 9 using the support shaft 11 as a fulcrum.
Closely contact. In this case, the booklet support plate 6 is moved to the scanner 19.
You may move it towards. Then, as shown in FIG. 4(j), the booklet support plate 6 is moved back and taken out from under the booklet 1, and then the scanner 19 reads the booklet. After reading, as shown in FIG. 4(k), the scanner 19 is retracted downward and the booklet support plate 6 is advanced to support the booklet 1. A sheet of paper 2 turned over by this operation is scooped up to the left side of the booklet support plate 6.

When turning over the next sheet 2, with the feed roller 7 and reverse roller 8 separated, the sheet support 9 is rotated about the support 10, and one end of the booklet support plate 6 and the reverse roller 8 are rotated. By retracting the paper leaf support 9 from the space between the paper leaf support 9 and the movable plate 1
3, the state shown in FIG. 4(a) is obtained.

Here, when a plurality of paper leaf supports 9 are used as in this embodiment, the paper leaf 2 turned over by the reverse roller 8 is supported one by one on each paper leaf support 9, and the next page is turned. By retracting only one sheet support 9 each time the operation is performed and feeding the sheets 2 one by one to the movable plate 13 side, the movable plate 13 can handle each sheet 2 to be turned over to the left. Paper leaf 2 to be separated by
The number of times the paper is returned to the right paper tray 9 by the reverse roller 8 can be significantly reduced. Of course, a single sheet support may be used as a stacker instead of the plurality of sheet supports 9.

Although the movable plate 13 was used as a means for turning over a sheet of paper 2 between the feed roller 7 and the reverse roller 8,
As shown in FIG. 5, while continuing to drive the reverse roller 8 clockwise, the feed roller 7 is reversely reversed counterclockwise to feed the sheet 2 to the outside of the feed roller rough, which acts as a pressing means. The negative pressure from the negative pressure generator 20 is applied to the paper sheet 2.
By assigning this to , - sheets of paper 2 may be turned over to the left. Alternatively, as shown in FIG. 6, the paper sheet 2 may be turned over to the left by moving the feed roller 7 and the reverse roller 8 to the left together with the swinging body 17. In this case, the means for moving the rocking body 17 is a pressurizing means for applying pressure to the left on the paper sheet 2.

Effects of the Invention As described above, the present invention provides a booklet support plate having a support surface for supporting an opened booklet and an opening formed in the support surface from which sheets of some pages of the booklet protrude, a feed roller that rotates in a direction that contacts the paper leaf of the booklet protruding from the opening and pulls the paper leaf against the booklet support plate; A holding means is provided for holding a reverse roller which is arranged opposite to the feed roller and rotates in the same direction as the feed roller so as to be able to approach and separate, and at least one of the feed roller and the reverse roller is brought close to each other. A paper leaf support is provided which is biased by a biasing means in the direction of the booklet support plate and moves freely forward and backward into the space between one end of the booklet support plate and the reverse roller to support the end of the paper leaf; Since a pressure means is provided for applying pressure to the paper sheet in a direction opposite to the paper sheet support from a position facing the binding part of the booklet, some of the opened sheets of the booklet supported by the booklet support plate are provided. The leaf can be held between the feed roller and the reverse roller, and in this state, the feed roller pulls the leaf from the booklet support plate while the reverse roller returns the leaf to the booklet support plate. The reverse roller returns the overlapping paper sheets until a single sheet remains between them, and the returned paper sheet can be supported by the paper support. This single sheet of paper can be turned over to a predetermined position in the opposite direction to the sheet support by applying pressure to the sheet of paper left in between, and furthermore, the sheet of paper left between the booklet support plate and the reverse roller can be turned over. By retracting the sheet support from the space, the sheet to be turned next can be returned by its own weight to a position where it interferes with the pressing means, and the sheet can be turned over by the pressing means. This has the advantage of eliminating the need for marking the booklet to prevent multiple turning.

[Brief explanation of drawings]

1 to 4 show an embodiment of the present invention,
Fig. 1 is a perspective view, Fig. 2 is a perspective view showing the support structure for supporting paper sheets, Fig. 3 is a side view showing the separation operation of paper sheets by the feed roller and reverse roller, and Fig. 4 is a side view showing the separation operation of paper sheets by the feed roller and reverse roller. FIGS. 5 and 6 are side views showing modified examples of page turning operations using pressure means, FIGS. 7 and 8 are conventional examples, and FIG. A side view showing the turning operation, and FIG. 8 is a perspective view of the passbook to be turned over. ■...Booklet, 2...Paper leaf, 3...Binding part, 4...
・Supporting surface, 5... Opening, 6... Booklet support plate, 7.
...Feed roller, 8...Reverse roller, 9...
・Paper leaf support, 13...pressure means, 17...holding means, 18...biasing means, 20...pressure means Ricoh Co., Ltd.

Claims (1)

[Claims] a booklet support plate having a support surface for supporting an opened booklet; and an opening formed in the support surface from which the paper sheets of some pages of the booklet protrude; and the paper sheets of the booklet that protrude from the opening. a feed roller that rotates in a direction to pull the sheet of paper against the booklet support plate; and a feed roller that is arranged opposite to the feed roller with the sheet of paper protruding from the opening in between; a reverse roller that rotates in the same direction; a holding means that holds the feed roller and the reverse roller so as to be able to move toward and away; and an urging member that biases at least one of the feed roller and the reverse roller in a direction in which they approach each other a paper leaf support that moves freely in and out of the space between one end of the booklet support plate and the reverse roller; and a paper leaf support that moves in a direction opposite to the paper leaf support from a position facing the binding portion of the booklet. A page turning device comprising: a pressure means for applying pressure to the paper sheet.