JPH05104885A - Device for reading book manuscript - Google Patents

Abstract

PURPOSE:To provide a reader capable of making a read sensor of a read means get smoothly on a book manuscript. CONSTITUTION:When a manuscript read means 400 gets on a book manuscript O, the read means 400 is saved from the face of the manuscript to a save position. After the read means get on the book manuscript O, a lift mechanism of a read sensor 13 is controlled for moving it to a reading position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a book manuscript reading device used as a manuscript reading device for copying machines and facsimiles.

[0002]

2. Description of the Related Art As a book manuscript reading apparatus and method, a book manuscript surface placed on a manuscript table in an upwardly spread manner is brought into contact with an upper contact glass.
There are known ones in which a document image is exposed and scanned by scanning of a scanning optical system, and ones in which a document image is read by exposing and scanning a book document placed in an upward facing state by a contact-type reading sensor. However, in the former case, it is necessary to move the book document from the position where the pages of the book document are turned to the position where the exposure scanning is performed, which lowers the document exposure scanning efficiency and inevitably increases the size of the apparatus. Had a glitch. Further, in the latter case, although the size of the apparatus can be eliminated, since the document pressing means for pressing the document surface of the book document is not provided, the document surface is likely to be lifted and the document reading scanning becomes unstable. Had a problem that became.

On the other hand, if the original is a sheet original, AD
It is possible to automatically read the manuscript information by installing F etc. However, when the manuscript is a book manuscript, it is practically difficult to realize an automatic page turning mechanism. You are in a situation where you can only turn pages of a manuscript manually. Further, conventionally, various proposals have been made on methods and means for automating the troublesome reading of a book manuscript, but in these conventional techniques, there are many proposals only for ideas, and the level reaches a level that can be realized. Not not. In view of such a current situation, the applicant of the present invention, for example, as disclosed in Japanese Patent Application No. 2-193589 and the like, uses a part of the page pressing belt stretched along the document placing surface of the document placing table. A reading unit or the like is provided on the document surface of the book document placed in an open state between the document mounting surface and the page pressing belt while forming a bypass portion which is separated from the document mounting surface. We proposed a page turning apparatus for book manuscripts, which performs page turning of the book manuscript and scanning of manuscript reading by relatively moving the formed page turning reading unit.

According to the page turning reading apparatus for book originals according to this proposal, as described in the above-mentioned specification and the like, the page turning operation and the original reading scanning of the book original, which requires a great deal of labor for copying work and the like, are performed. It is possible to realize a multifunctional original reading system which can be completely automated and remarkably improves the productivity such as copying.

[0005]

By the way, in the page turning reading apparatus for book originals previously proposed by the present applicant, the page turning reading unit is configured to press the original surface by the tension of the page pressing belt. There is. Therefore, when the reading unit of this apparatus is located off the book document, the reading surface is located below the document surface. For this reason, when a book document is read using this device, a reading sensor that is vertically movable is provided on the side surface of the book document when the reading unit is riding on the book document or when passing through the central binding portion. Therefore, there is a problem that the riding and passing of the document is blocked, or the surface of the document is damaged by the forcibly riding and passing. The present invention has been made in view of the above points, and the first
It is an object of the present invention to provide a reading device capable of smoothly mounting the reading unit on a book document.

The first object can be achieved by retracting the reading sensor from the surface of the document when the reading unit runs on the book document or when it passes through the central binding portion.
However, if the position where the reading sensor is retracted is simply set to a position separated from the scanning start position by a certain distance, the condition of the book original, that is, even if the same original is used, the page position and other conditions may be changed. Because the position of the end of the book document changes, the reading sensor may drop and hit the side of the book document before the reading unit has finished riding on the book document, or the reading sensor has already reached the document surface. However, there is a problem in that the read sensor is not lowered and the read image is displaced or the image is missing. A second object of the present invention is to provide a reading device capable of preventing the above-mentioned positional deviation of the read image and image omission by varying the movement timing of the reading sensor to the reading position according to the document page position of the book document. To do.

A third object of the present invention is to provide a reading apparatus which solves the above problems by detecting the timing of movement of the reading sensor to the reading position on the original surface of a book original.

Further, a fourth object of the present invention is to retract the reading sensor in the reading unit above the original surface when the book original central binding portion of the reading unit is passed so that the book original of the sensor of the reading unit. An object of the present invention is to provide a reading device capable of improving the passability of the central binding portion.

Further, a fifth object of the present invention is to provide a reading apparatus which solves the above-mentioned problem by changing the retracting timing of the reading sensor to the retracted position according to the document page position of the book document. It is in.

Further, a sixth object of the present invention is to solve the above-mentioned problem by performing the timing of retracting the reading sensor to the retracted position at the time when the reading unit scans and moves a predetermined distance from the reading start position. To provide a device.

Further, a seventh object of the present invention is to provide a reading apparatus which solves the above-mentioned problem by detecting the step of retreating the reading sensor to the retreat position which is equal to or more than a predetermined value on the document surface. Especially.

[0012]

SUMMARY OF THE INVENTION In order to achieve the first object described above, the present invention provides a document placing table on which a book document that has been opened is placed, and a document placing surface of the document placing table. A document scanning unit that scans a book document that is opened and placed, and a reading unit that is supported so as to be movable up and down so as to read a document image in close contact with a document surface of the book document when the document scanning unit scans and moves. Moving means for moving the reading means to the reading position for performing exposure scanning of the original image and the retracted position retracted from the original surface, and the reading means retracted to the retracted position when the original scanning means rides on the book original. In addition, the control means controls the moving means to move to the reading position after riding on the book document.

Further, according to the present invention, in order to achieve the above-mentioned second object, the movement of the reading means to the reading position is executed at a position where the scanning means has moved by a predetermined amount from its scanning start reference position. The predetermined movement amount of the scanning means from the scanning start reference position is variable according to the document page position of the book document.

Further, according to the present invention, in order to achieve the above-mentioned third object, the movement of the reading means to the reading position is performed at the time of detecting the original surface of the original surface detecting means for detecting the original surface of the book original. It is configured to be executed.

Further, according to the present invention, in order to achieve the above-mentioned fourth object, an original placing table on which an opened book original is placed, and the original placing surface of the original placing table is opened and placed. An original scanning means for scanning the placed book original, a reading means which is supported so as to be movable up and down so as to read an original image in close contact with the original surface of the book original when the original scanning means is moved by scanning, and the reading means. A reading position for performing exposure scanning of a document image and a moving unit for moving the document image to a retracted position retracted from the surface of the document, and the reading unit for retracting the reading unit when the document scanning unit passes through the central binding portion of the book document. And a control means for controlling the moving means so as to evacuate.

Further, according to the present invention, in order to achieve the above-mentioned fifth object, the movement of the reading means to the retracted position is performed at a position where the scanning means has moved a predetermined amount from its scanning start reference position. The predetermined movement amount of the scanning means from the scanning start reference position is variable according to the document page position of the book document.

Further, according to the present invention, in order to achieve the above-mentioned sixth object, the movement of the reading means to the retracted position is performed from a reading start position by the reading means.
It is configured to be executed at a position where the scanning means has moved by a predetermined amount.

Further, according to the present invention, in order to achieve the above-mentioned seventh object, the movement of the reading means to the retreat position is detected by a step provided on the lower surface of the upstream of the scanning means in the scanning direction. It is configured to be executed when the step detects a step difference of a predetermined value or more on the document surface.

[0019]

According to the present invention, the reading sensor in the reading unit causes the state of the book original to be changed.

And, depending on the state of the original page, etc., it is moved up and down at an appropriate time.

Embodiments of the present invention will now be described in detail with reference to the drawings.

However, for the purpose of avoiding complication of the description, the configuration and operation of the range clearly conceivable from the description of the present specification, and the above and other objects and novel features of the present invention are illustrated and illustrated. Disclosure is omitted or simplified.

The present invention can be independently implemented in a reading device having only a document reading function of a book document, but here, for convenience of explanation, both the page turning function and the document reading function described above are provided. The page turning reading device incorporated in one unit was used as the example.

That is, in principle, the embodiment described below has substantially the same function as that of the page turning reading apparatus for book originals proposed by the present applicant, and its outline is as follows. It is configured.

That is, the page turning reading apparatus for book originals according to the present invention, "multi-function.
As shown in FIG. 1, a document scanner (hereinafter, referred to as “MFDS”) is a book document O that is opened.
A document placing table 100 on which a document is placed, and the document placing table 100
Of the page pressing belt 200 stretched along the original document mounting surface 100a, and a belt bypass portion that forms a bypass portion 200a on the page pressing belt 200 by separating a part of the page pressing belt 200 from the original document mounting surface 100a. Forming means 30
0, the reading unit 400 and the detour unit 2 arranged on the document reading scanning direction (arrow a direction) side of the detour unit 200a with the reading unit 400a facing the document placement surface 100a.
The page storage means 500 and the page retainer arranged in parallel with the reading means 400 along the original reading scan direction by opening the page storage opening 500a in the page turning direction (direction of arrow b) opposite to the original reading scan direction of 00a. A page adsorbing means 600 that electrifies the belt 200 with an unequal electric field to adsorb a page of the book document O to the page pressing belt 200, and a page pressing belt 2 at a portion facing the page storing port 500a of the page storing means 500.
The page turning reading unit 1 is integrated with the page separating means 700 for separating the curvature of the document pages adsorbed on the page pressing belt by the curvature of 00, and is supported reciprocally along the document placing surface 100a. There is.

Further, as shown in FIG. 2, the main body structure of this MFDS has a front open shell type opening / closing structure in which the rear parts of the upper unit 2 and the lower unit 3 are fixed by hinges 4, The upper surface of the lower unit 3 is the document placing surface 10
It is 0a.

The book document O is set by opening the upper unit 2 by fitting the binding portion into the center groove 100b formed in the central portion of the document mounting surface 100a and opening it. Therefore, in this MFDS, it is not necessary to set the book document face down with the double-page spread face down as in a conventional copying machine, and the book document setting operation can be performed extremely efficiently and easily.

On the other hand, the page pressing belt 200 and the page-turning reading unit 1 are arranged in the upper unit 2, and the magnetic plate 2a of the upper unit 2 is attracted to the magnet 3a of the lower unit 3 and the upper unit 2 is adsorbed. By closing the two, the original surfaces of the book original O are brought into close contact with each other. The page-turning reading unit 1 is reciprocally moved with the upper unit 2 closed as described above, and forward movement as shown by reference numerals 1A, 1B, 1C, and 1D in FIG. 3, that is, reading scanning shown by an arrow a. When moving in the direction,
When the document surface of the book document O is scanned by the reading unit 400 and the backward movement as shown by reference numerals 1E, 1F, 1G, and 1H in FIG. 4, that is, the movement in the page turning direction shown by the arrow b, the page suction unit 600 , Page separation means 700,
Also, the page storage means 500 performs page turning of the book document O.

The drive mechanism and drive control means of the page-turning reading unit 1 have been described in detail in the above-mentioned prior application, and therefore the description thereof is omitted here.

The configuration and operation unique to this embodiment, which is different from the MFDS of the prior application, will be described below.

In the page-turning reading unit 1, as shown in FIG. 5, various rollers 6, 7, 8, 9, 10, 11, 12 are rotatably provided between a pair of front and rear unit side plates 5, respectively. It is supported. Here, the belt supporting rollers 6, 7 and 8 separate a part of the page pressing belt 200 from the document placing surface 100a, and the page pressing belt 2
00 functions as a belt detouring portion forming means 300 that forms a detouring portion 200a. Further, the turning roller 9 and the separation roller 10 are provided on the page pressing belt 200 at a portion facing the page storage opening 500a of the page storage means 500.
With the curvature of, the page separating unit 700 functions to separate the curvature of the document page adsorbed on the page pressing belt. Further, the charging roller 11 and the counter electrode roller 12 function as page suction means 600 that charges the page pressing belt 200 with an unequal electric field to suck the pages of the book document O onto the page pressing belt 200.

Further, the bypass portion 2 of the page pressing belt 200
00a includes a reading unit 40 for the document placement surface 100a.
0a face each other, and a reading unit 400 disposed on the side of the bypass 200a in the original reading scanning direction (direction of arrow a).
The reading sensor 13 and the reading sensor control board 14, and the page storage port 500a is opened in the page turning direction (direction of arrow b) opposite to the document reading scanning direction of the bypass 200a, and the document reading scanning is performed on the reading unit 400. A page accommodating member 15 and a page turning guide 16 as the page accommodating means 500 are arranged in parallel along the direction.

Further, riding guides 17 and 18 supported between both unit side plates 5 are provided at the end portion on the reading scanning direction side and the end portion on the page turning direction side of the page turning reading unit 1, respectively. There is. The riding guides 17 and 18 are located on the side opposite to the book original O with the page pressing belt 200 interposed therebetween, and do not directly contact the book original O, and normally, the page pressing belt 200 is not provided.
3 does not come into contact with the page turning reading unit 1 in the reading scanning direction indicated by the arrow a in FIG. 3 and the page turning reading unit 1 moves in the page turning direction indicated by the arrow b in FIG. Reading unit 1 for the document surface of the book document O at the time of
It has the function of smoothing the raising and lowering operation of the.

The raising and lowering of the page turning reading unit 1 at this time is performed by the raising and lowering mechanism 800 with an inclination preventing function. The lifting mechanism 800 is composed of a link mechanism as shown in FIGS. 6 to 8. That is, in FIGS. 6 to 8, one end of each of the first link 21 and the second link 22 is rotatably rotatably supported at the end of the studs 19 and 20 for fixing the respective riding guides 17 and 18 to the unit side plate 5. Has been done. The other ends of the first and second links 21 and 22 are respectively rotatable by the stepped screws 23 and 24 so that one ends of the third link 25 and the fourth link 26 and both ends of the side link 27 are rotatable. It is pivotally supported. The other ends of the third link 25 and the fourth link 26 have studs 28, 29, respectively.
Are rotatably supported by the unit driving side plates 30. Further, a guide pin 31 is fixed to the outside of the unit side plate 5, and this guide pin 31
Is vertically movably fitted in a long groove 32a of a unit elevating guide 32 arranged inside the unit driving side plate 30.

According to the elevating mechanism 800, when the page turning reading unit 1 reciprocates, the thickness of the book original O causes each of the riding guides 17 and 18 to receive a force from each traveling direction, so that the riding is carried out. Due to the upward component force acting on the guides 17 and 18, the page turning reading unit 1 is lifted without tilting (FIG. 8). Further, according to the elevating mechanism 800, the guide pin 31 fixed to the outer side of the unit side plate 5 is moved up and down along the long groove 32a of the unit elevating guide 32 arranged inside the unit drive side plate 30. It is possible to prevent skewing of the page turning reading unit 1 when the page turning reading unit 1 is moved up and down, and the original scanning speed of the reading sensor 13 does not change due to the vertical movement of the page turning reading unit 1. Stable image scanning is realized.

The elevating mechanism of the page turning reading unit 1 may be constructed as shown in FIGS. 9 and 10.

In FIGS. 9 and 10, unit upper and lower rods 34 are fixed to two upper and lower rod fixing plates 33 formed on the unit driving side plate 30. Two unit upper and lower guide plates 35 formed on the unit side plate 5 are slidably fitted to the unit upper and lower rods 34. According to the elevating mechanism configured as described above, since the two upper and lower unit upper and lower guide plates 35 slide along the unit upper and lower rods 34, the page turning reading unit 1 is moved up and down. Even if a rotational moment acts when the unit 1 is moved up and down, the page turning reading unit 1 is smoothly moved up and down, and the configuration is simplified.

On the other hand, the page turning reading unit 1
Is reciprocally driven in the reading scanning direction and the page turning direction by reciprocally driving the unit driving side plate 30 described above. As shown in FIGS. 11 to 13, the unit drive plate 30 has three guide members 36 formed on the outside thereof fitted in the guide rods 37, so that the unit drive plate 30 can be moved in the left-right direction in FIGS. 12 and 13. , Is slidably supported. The guide rod 37 is provided on the document placement surface 10
Two pieces are laterally laid on the front and rear side plates of the upper unit 2 in parallel with 0a, and both ends thereof are fixed. Further, the unit driving plate 36 is integrated with a timing belt 39 stretched between the guide rods 37 by a fixing plate 38 formed on the outer side thereof. As shown in FIGS. 12 and 13, the timing belt 39 is rotatably stretched by a drive pulley 40 and a driven pulley 41 pivotally supported by front and rear side plates of the upper unit 2, and is driven by a drive motor 42. Each drive pulley 40 is rotationally driven via the driven drive shaft 43 to be reciprocally rotationally driven. In this way, the timing belt 39 is driven to reciprocally rotate at a predetermined timing, so that the page turning reading unit 1 is operated as shown in FIG.
As shown in FIG. 4 and FIG.
It is reciprocated along the document surface.

By the way, the page rake angle θ of the page turning guide 16 in the page storage opening 500a of the page storage means 500 enters the page storage opening 500a of the book original O separated from the page pressing belt 200 by the page separating means 700. It is necessary to make the angle smaller than the angle α so as to eliminate the document separation error. That is, as shown in FIG. 14, when the page turning roller 9 and the separation roller 10 are arranged at the same height, the page of the page turning guide 16 in the page storing port 500a of the page storing means 500 is shown. The rake angle θ1 is configured to be smaller than the entry angle α of the book document O separated from the page pressing belt 200 by the page separating means 700 into the page storage port 500a. In this case, the page rake angle θ1 of the page turning guide 16 is preferably 60 degrees or less, and more preferably 10 degrees or less. Page rake angle θ1 of this page turning guide 16
Is different depending on the turning margin with respect to the material of the page of the book document O, and when the document page is soft, the entry angle α to the page storage port 500a becomes relatively large, so it is possible to separate even at an angle of about 60 degrees. If the original page is hard, the entry angle α into the page storage port 500a becomes relatively small, so it is preferable that the original page be as small as 10 degrees or less.

However, as shown in FIG. 14, when the turning roller 9 and the separating roller 10 are arranged at the same height, the page turning guide 1
In order to reduce the page rake angle θ1 of 6, it is necessary to bring the lower end of the page turning guide 16 close to the document placing surface 11a. Therefore, if the page rake angle θ1 of the page turning guide 16 is too small, the page turning If the edge of the book document O rises for some reason when the reading unit 1 moves in the page-turning direction, the lower end of the page-turning guide 16 may come into contact with the edge of the book document O. Therefore, in the page turning reading unit 1 of this embodiment, as shown in FIGS. 5 and 15, the separation roller 10 is more than the height of the turning roller 9.
Arrange so that the height of the
The separation position of the book original O separated from 00 is increased,
By increasing the substantial entrance angle α1 of the original page into the page storage port 500a, the page turning guide 1
The lower end of 6 can be sufficiently separated from the document placing surface 11a, and the page rake angle θ2 of the page turning guide 16 can be set.
It is configured to be sufficiently small.

As a result, the uppermost page of the book original O that has been attracted to the page pressing belt 200 and has undergone curvature separation by the separation roller 10 is as shown in 1F of FIG.
Page turning guide 16 through the page storage port 500a
Is guided to the inside of the page storage member 15 and is stored in the page storage member 15 while being wound in a cylindrical shape along the inner peripheral surface of the page storage member 15.

Here, the entry direction of the uppermost page separated by the separation roller 10 into the page storage port 500a is as follows.
As described above, since the entry angle α1 into the page storage port 500a differs depending on the quality of the original pages to be separated, it does not always follow the page turning guide 16. Therefore, in the page turning reading unit 1 of this embodiment, as shown in FIG.
A page guide 15a is formed on the outer peripheral portion of the page turning guide 16 facing the page turning guide 16 so that the uppermost page separated by the separation roller 10 enters the page storage port 500a regardless of the quality of the original pages to be separated. Is forcibly deflected in the direction along the page turning guide 16.

Further, in the page turning reading unit 1 of this embodiment, as shown in FIG.
By placing the counter plate 44 in close contact with the back side of the page pressing belt 200 between the separation roller 10 and the separation roller 10, the original page suction force of the uneven electric field pattern formed on the page pressing belt 200 is increased, and It was confirmed as a result of the experiment that the reliability of turning is improved. Here, in this embodiment, the facing plate 44 is made of a metallic plate material,
The facing plate 44 does not necessarily have to be made of a conductive material such as metal, and the same effect can be obtained with an insulating material.

Further, as the page separating means 700, as shown in FIG. 16, instead of the above-described turning roller 9, a diameter R2 (in this embodiment, sufficiently larger than the radius R1 of the turning roller 9 is used. By adopting a structure in which the turning support plate 45 having a curved surface of (R2 = 75 mm) is provided, the reliability of turning the page is further improved. Here, the surface curvature ρ of the turning support plate 45 is ρ = 1 / R2 =
1/20 or less, that is, the diameter R2 of the turning support plate 45 is 20 mm or more, preferably 60 mm or more. Such a page separating means 700 can be coped with by setting the radius R1 of the turning roller 9 to 20 mm or more. However, if the radius R1 of the turning roller 9 is increased in this way, the size of the page turning reading unit 1 becomes large. It causes trouble.

As shown in FIG. 17, the surface of the turning support plate 45 is closer to the separation roller 10 nearer to the edge, that is, in the direction of entering the page into the page storage port 500a of the page storage means 500. Since the curvature is gradually increased, the force of the page pressing belt 200 to bend the original page against the waist strength of the original page gradually increases with respect to the original page. Since the size is increased, the followability of the document page to the page pressing belt 200 is increased, and the reliability of page turning can be further improved. In the turning support plate 45 shown in FIG. 17 of the present embodiment, from the contact point G1 where the page pressing belt 200 first contacts the book document, to the separation point G2 where the suction-separated document page is curvature separated from the page pressing belt 200. The diameters R3, R4, and R5 are configured to change in three steps of R3 = 100 mm, R4 = 70 mm, and R5 = 40, respectively. Here, the turning support plate 45 may be configured such that its surface curvature continuously changes.

By the way, the examples shown in FIGS. 15 to 17 show the page separating means 700 in which the separating roller 10 is fixedly arranged in advance so that the height of the separating roller 10 is higher than the height of the turning roller 9. However, as the page separating means 700, as shown in FIGS. 18 to 21, the separating roller displacing means 900 may be configured to displace the separating roller 10 at a predetermined timing. As shown in FIG. 19, the separating roller displacing means 900 in this embodiment is composed of a pair of a turning lever 46, a turning solenoid 47, and a return spring 48. As shown in FIG. 19, each turning lever 46 is formed in an L-shape, and its corners are rotatably supported by both ends of the support shaft of the turning roller 9. The separation roller 10 is rotatably supported by the free ends of the turning levers 46 extending in the horizontal direction. Further, at the base end portions of the turning levers 46 that extend in the vertical direction, the turning solenoids 47 and the turning solenoids 47 that are arranged in the crocodile facing the extending direction of the respective free ends. The other ends of the return springs 48, one end of which is locked to the opposite side, are connected to each other. In this separation roller displacing means 900, normally (when the turning solenoid 47 is not operated), the separation roller 10 is at the position shown by the broken line in FIG. 18, that is, the turning roller 9 and the separation roller 1.
0 and 0 are arranged at the same height, and when the manuscript page is turned, the turning solenoid 47 is actuated to separate it to the position shown by the solid line in FIG. The separation roller 10 is displaced so that the height of the roller 10 becomes higher.

The turning solenoid 47 is shown in FIG.
As shown in, the page turning reading unit 1 moves in the page turning direction, and is turned on at the time when the end of the uppermost page of the book document O corresponds to a substantially intermediate position between the turning roller 9 and the separating roller 10. It The operation timing of the flipping solenoid 47 is determined by the size of the book document O set on the document placing surface 100a of the document placing table 100. That is, the turning solenoid 47
Is the book manuscript size from the time when the page turning reading unit 1 starts the page turning operation until the end of the uppermost page of the book manuscript O corresponds to a substantially intermediate position between the turning roller 9 and the separating roller 10. The required time or the moving distance according to is obtained by counting the number of pulses of the stepping motor, for example, and is turned on when this count value matches the reference value of the book document size input in advance.

As a result, the separation roller 10 is displaced to the position shown by the solid line in FIG. 18, and as shown in FIG. 21, only the uppermost page of the book original O attracted to the page pressing belt 200 is changed to the other position. After being separated from the page and subjected to curvature separation by the separation roller 10, as shown in FIG. 1F, the page storage member 500 is guided along the page turning guide 16 into the page storage member 15, and the page storage member 15 is guided. It is accommodated in the page accommodating member 15 while being wound in a cylindrical shape along the inner peripheral surface of the. In this way
When the turning operation of the uppermost page of the book document O attracted to the page pressing belt 200 is completed, the turning solenoid 47 is released, and the elastic force of the return spring 48 causes the separating roller 10 to show the broken line in FIG. Returned to position.

As described above, the original surface of the book original O from which the uppermost original page is separated is, as shown in FIG. 22, a circumference faster than the moving speed of the page turning reading unit 1 in the page turning direction. At a speed, it is pressed downward by the page pressing brush 49 which rotates counterclockwise in FIG. In this way, the page pressing brush 49 presses the document surface, so that the sliding contact of the reading sensor 13 with the document surface during the page turning operation is avoided,
The misalignment of the next original page is prevented. Further, the page pressing brush 49 is rotated clockwise in FIG. 22 at a peripheral speed faster than the moving speed of the page turning reading unit 1 in the page turning direction in FIG. As a result, the pages discharged from the page storage unit 500 are extended and pressed against the document surface of the book document O, so that the page turning operation is surely performed. Here, the same effect can be obtained by replacing the above-mentioned page pressing brush 49 with a page pressing roller 50 as shown in FIG.

Further, the page pressing brush 49 and the page pressing roller 50 described above do not necessarily have to rotate, and the page pressing brush 49 or the page pressing roller 5
Even if 0 is rotatably arranged, it is effective. further,
As shown in FIG. 24, the reading sensor 1 is replaced with the page pressing brush 49 and the page pressing roller 50 described above.
A flexible guide member 51 such as mylar is attached to the end of 3 by extending the page-turning guide 16 to the crocodile,
As shown in FIG. 25, even when a similar flexible guide member 52 is attached to the back surface of the page conveying surface of the page turning guide 16 by the reading sensor 13 extending to the crocodile surface and attached at the time of the page turning operation. Collision of the reading sensor 13 with the end of the document is avoided, and the page ejected from the page storage unit 500 is extended by the flexible guide member 51 (or 52), so that the page of the document that is turned over can be detected. The occurrence of jams is prevented. here,
The flexible guide member 51 (or 52) is provided on the rear surface of the page conveying surface of the page turning guide 16 and the reading sensor 13.
It may be affixed between both unit side plates 5 between and.

By the way, as described above, the separation roller 1
Since the traveling direction of the document pages in the page storage member 15 after being separated by 0 differs depending on the paper quality of the document pages of the book document O, the page storage member 1 is not always required.
There is no guarantee that the direction will be along the inner peripheral surface of 5. Therefore, the page storage member 1 after being separated by the separation roller 10
If the original pages in 5 do not move in the direction along the inner peripheral surface of the page storage member 15, the flipped original pages are jammed in the page storage member 15,
When the document is discharged, the document page is damaged and remains in the page storage member 15, or wrinkles or folds occur.

Therefore, in this embodiment, as shown in FIG. 26, the page storage member 15 is provided inside the page storage member 15.
Page storage guide 53 having an outer diameter smaller than the inner diameter of
Is provided. As a result, as shown in FIG. 26, the uppermost original page separated from the book original O is separated from the outermost surface of the page storage guide 53 and the page storage member even if the paper quality is slightly hard. By entering between the inner peripheral surface of 15 and the page storage member 1,
5 is bent along the inner peripheral surface of the page storage member 1
It is stored smoothly in 5.

Here, the page storage guide 53 is a POM.
(Polyacetal), or a Teflon-coated columnar member having a smooth surface, or a columnar member made of expanded polystyrene, expanded polyurethane, or a metal hollow cylinder is fixed in the page storage member 15. Or it is configured to be axially supported. Further, as shown in FIG. 27, the page storage guide 53 does not have a columnar member formed of an extremely lightweight material such as styrofoam or polyurethane foam in the page storage member 15 without being fixed or pivotally supported. The same effect can be obtained even if the configuration is simply inserted. Further, the inner peripheral surface of the page storage member 15 is formed of a low friction member such as Teflon (fluorine resin),
The uppermost original page separated from the book original O is smoothly inserted into the page storage member 15.

On the other hand, the reading sensor 13 provided in the page turning reading unit 1 is a sensor swing mechanism,
And the sensor elevating mechanism slightly swings, and
It is configured to be raised and lowered. The configurations of the sensor swinging mechanism and the sensor elevating mechanism are shown in FIGS.
4 shows. In FIG. 28, a platen glass 55 is attached to the reading surface (lower surface) of the reading sensor 13 via a glass bracket. Further, sensor brackets 56 are fixed to both sides of the reading sensor 13 with screws 57, respectively. Further, sensor angles 58 as shown in FIGS. 29 and 30 are attached to the outside of each sensor bracket 56.
In these sensor angles 58, a lifting plate 58a is formed above a rectangular plate-shaped member, and a rotation support pin 58c with a reinforcing truncated cone 58b is formed below the rectangular plate-shaped member. Each block 58d is formed.

Further, on both sides of each sensor bracket 56, holes into which the reinforcing truncated cone 58b of each sensor angle 58 and the rotation support pin 58c are fitted are bored. After the reinforcing truncated cone 58b and the rotation support pin 58c of each sensor angle 58 are inserted into the respective holes of each of the sensor brackets 56, the rotation support pins 58c of these sensors are also inserted.
Each sensor angle 58 is mounted by attaching an E-ring 59 to the end of the sensor. At this time, as shown in FIGS. 31 to 33, each sensor angle 58 has a vertical groove 56 of each sensor bracket 56 that is formed to have a width W2 that is slightly wider than the width W1 of the sensor angle 58.
They are loosely fitted in a.

As a result, each sensor bracket 56 is
The rotation support pin 58c of each sensor angle 58 can be swung by a slight angle (about 5 degrees in this embodiment), and the reading sensor 13 supported by these sensor brackets 56 can be swung. To be done. Here, the reading sensor 13 is not forcibly swung, but the platen glass 55 of the reading sensor 13 comes into contact with the book document O when the page turning reading unit 1 moves in the reading scanning direction. However, the book document O is swung by following the surface shape of the document surface.

On the other hand, the lifting pin 5 of each sensor angle 58
As shown in FIGS. 32 and 33, 8a are fitted in the elongated holes of the sensor elevating arm 60, respectively. Further, the guide block 58d of each sensor angle 58 is shown in FIG.
And as shown in FIG. 33, the guide groove 5a formed in the pair of unit side plates 5 of the page turning reading unit 1.
Are respectively fitted so as to be able to move up and down. Each sensor elevating arm 60 has its base end fixed to a sensor elevating shaft 61 rotatably supported between a pair of unit side plates 5 by welding or caulking. Is configured to swing integrally with each other. As shown in FIGS. 28 and 34, a sensor drive groove 58e is formed in the guide block 58d of one sensor angle 58, and the sensor drive source (rotary solenoid) 62 of the sensor drive groove 58e is formed in the sensor drive groove 58e. The output shaft 62a is fitted.

The sensor driving source 62 is normally in an off state, and is turned on when the page turning reading unit 1 starts moving in the page turning direction. When the sensor driving source 62 is turned on, the output shaft 62a is displaced upward, and the displacement of the output shaft 62a causes one sensor angle via the guide block 58d in which the output shaft 62a is fitted. 58 is displaced upward.
Then, by raising the sensor angle 58 on one side,
The sensor elevating arms 60 integrated via the sensor elevating shaft 61 are simultaneously swung, and the other sensor angle 58
Will be increased in conjunction with. As a result, the reading sensor 13 supported by both sensor angles 58 is raised via the sensor bracket 56, and the reading sensor 1 during the page turning movement of the page turning reading unit 1.
The contact of the book document O of No. 3 with the document surface is avoided, and the stable page-turning operation of the page-turning reading unit 1 is ensured.

Next, the page storage means 5 in this embodiment.
00 will be described. This page storing means 50
As shown in FIGS. 35 and 36, the page storage member 0 of 0 has a shape in which a part of a cylindrical body is cut out along the direction of its direction, and the inner peripheral surface of the page storage member 15 is formed along the circumferential direction. And has a plurality of ribs 15b protruding inward. As shown in FIG. 36, at both ends of the page storage member 15, a page storage side plate 6 having a recess 63a formed in the center thereof is formed.
3 are fixed so as to cover the openings on both sides of the page storage member 15.

As shown in FIGS. 35 and 36, the page turning guide 16 of the page storage means 500 is formed in a rounded shape along the inner peripheral surface of the page storage member 15, and the page guide surface thereof is wavy ( It has a plurality of ribs 16b protruding inward along the circumferential direction (inner surface side). Further, as shown in FIG. 37, support arms 16a bent toward the center of the page storage member 15 are provided at both ends of the page turning guide 16, and the end portions of these support arms 16a are provided. Rotational support pins 16c are respectively planted in the shafts so as to be positioned at the axial center of the page storage member 15. As shown in FIG. 36, these rotation support pins 16c are fitted into the recesses 63a of the page storage side plates 63 fixed to both sides of the page storage member 15, so that the page turning guide 16 can be moved by the page turning guide 16.
The page turning guide 16 is rotatably supported so as to rotate along the inner peripheral surface of the. This page storage means 5
According to No. 00, since the ribs 15b and 16b are formed on the inner peripheral surfaces of the page storage member 15 and the page turning guide 16, the document page slides on the inner peripheral surfaces of the page storage member 15 and the page turning guide 16. The dynamic resistance is reduced, and the reliability of the page turning operation of the page turning reading unit 1 is greatly improved.

Further, in the page turning guide 16 in this embodiment, the tip of the page entering side of the book document O has a triangular turning guide end portion 16d with the central portion as an apex as shown in FIG. Alternatively, as shown in FIG. 38, it is formed in a trapezoidal shape having a straight line portion in the vicinity of the central portion or in a protruding shape having a protruding portion in the central portion as shown in FIG. 39. According to this page turning guide 16,
As shown in FIG. 40, the page turning reading unit 1
When the end of the uppermost page of the book document O is turned over and separated by the page turning operation of the above, the turning guide end 16d of the page turning guide 16 guides so as to support the center of the uppermost page. Therefore, even if the end of the uppermost page is not completely attracted or turned to the page pressing belt 200, the end of the uppermost page is scooped up by the turning guide end 16d. 15 and the reliability of the page turning operation of the page turning reading unit 1 is greatly improved.

Further, the page storing means 5 in this embodiment.
00 page storage member 15 and page turning guide 1
6 is made of, for example, a conductive metal such as an aluminum plate or a stainless plate, or a conductive resin. Further, as shown in FIG. 41, the inner surface of the page storage member 15 of the page storage means 500 and the page turning guide 16 is coated with a conductive resin film 64 to be subjected to an antistatic treatment. Here, in any of the above cases, it is desirable to install the conductive member forming the page storage unit 500 in the present embodiment. The page storage means 500 prevents frictional electrification of the original page with respect to the inner peripheral surfaces of the page storage member 15 and the page turning guide 16, so that the sliding resistance of the original page during the page turning operation is reduced. The reliability of the page turning operation of the page turning reading unit 1 is greatly improved.

On the other hand, the page storage member 15 of the page storage means 500 in this embodiment is, as shown in FIG.
The outer peripheral surface 15c of the end of the row facing the page turning guide 16 functions as a page guide member for guiding the uppermost page separated from the book original O along the inner surface of the page turning guide 16. , Is extended to a position facing the inner surface of the page turning guide 16. Further, the outer peripheral surface 15c of the end portion of the row facing the page turning guide 16 of the page storage member 15 is, for example,
It is formed of a low-friction member that has been subjected to a treatment such as Teflon coating, and is configured to reduce the sliding resistance when the topmost page separated from the book original O enters.

The page storage means 500 shown in FIG. 42 is an embodiment in which a spiral page storage member 65 having a spiral cross section is used as the page storage member.
According to this embodiment, the leading edge of the uppermost page separated from the book original O and entered into the spiral page storage member 65 does not hit the newly entered portion of the uppermost page. Therefore, the storage operation of the top page in the page storage means 500 is smoothly performed.
Further, in the page storing means 500 in this embodiment, the length of the inner peripheral surface from the end of the page turning edge of the page turning guide 16 to the inner end of the spiral page storing member 65 is equal to this. It is formed to be longer than the lateral length of the page of the maximum size book document to be stored.
As a result, the leading edge of the top page that is separated from the book document O and that has entered the spiral page storage member 65 does not overlap any other part of the top page, so The storage operation in the page storage means 500 is performed more smoothly.

By the way, the page storing means 50 of the present embodiment.
36, the rotation support pins 16c of the page turning guide 16 are fitted in the recesses 63a of the page holding side plates 63 fixed to both sides of the page holding member 15, respectively, as shown in FIG. 16 is configured to rotate along the inner peripheral surface of the page storage member 15. Therefore, according to this page storing means 500,
After the storage of the top page of the book document O in the page storage member 15 is completed, the page turning reading unit 1
When the uppermost page is ejected by further moving in the page-turning direction, the page-turning guide 16 is centered on the rotation support pin 16c due to the strength of the waist near the binding portion of the uppermost page. As page storage member 1
Since it is pushed up while rotating along the inner peripheral surface of 5,
As shown in 1G of FIG. 4, a document page ejection path is secured during the ejection operation of the page turning reading unit 1. The returning operation of the page turning guide 16 after the document page is discharged is performed by the weight of the page turning guide 16 itself or the tension of a spring (not shown).

Here, temporarily, the page storage means 5 is assumed.
If the page-turning guide 16 of 00 is not rotatable as described above, as shown in FIG. 43, when the document page is discharged, the page-turning guide end portion 16d of the page-turning guide 16 causes the discharged document page to The original pages cannot be smoothly ejected because they are folded. In addition, the bending of the discharged document page may cause damage to the book document.
Therefore, as described above, the page turning guide 16 is pushed up while being rotated along the inner peripheral surface of the page storage member 15 about the rotation support pin 16c due to the strength of the waist near the binding portion of the original page. Even if it is configured to be formed (particularly when the protruding guide end portion 16d is formed at the central portion of the page turning guide 16 as in the embodiment shown in FIGS. 37 to 38). ,
The turning guide end portion 16d of the page turning guide 16
Therefore, it is desirable that the discharge operation of the original page is not hindered.

The embodiment shown in FIGS. 44 to 51 is made in view of the above points. That is, in the embodiment shown in FIGS. 44 and 45, the roller supporting portions 16e are formed at a predetermined interval at the end of the page turning guide 16 on the original page storage side, and the paper discharge assisting roller 16e is formed on the roller supporting portions 16e. 16f is rotatably attached. Further, in the embodiment shown in FIG. 46, a fluororesin (Teflon; a product, which has a substantially circular cross section (a circular shape of about 4 mm in the illustrated example) is formed at the end of the page turning guide 16 on the original page storage side. A low friction member 66 made of (name) is arranged. Further, in the embodiment shown in FIGS. 47 and 48, the end portion of the page turning guide 16 on the document page storage side has a rectangular shape (in the example shown, a width of about 1).
A low-friction member 66 made of 0 mm) Mylar is arranged so as to project from the end of the page turning guide 16 on the side of the original page storage by a slight amount (about 5 mm in the illustrated example). .. Further, in the embodiment shown in FIGS. 49 and 50, a front end cover 67 having a substantially U-shaped cross section is built in the front end cover 67 at the end of the page turning guide 16 on the original page storage side. The front cover 67 is configured to be slidably fitted together with the stretchable spring 68, and the leading end cover 67 is configured to be compressed by the rigidity of the discharged document page. Further, in the embodiment shown in FIG. 51, the end portion of the page turning guide 16 on the document page storage side has a circular cross section with a small diameter (about 4 mm in the illustrated example) and has a guide surface of the page turning guide 16. It is configured by forming a folded-back portion 16g that is folded back toward the outside of the (inner surface). According to these embodiments, when the document page is discharged, the discharged document page is not caught by the turning guide end portion 1d of the page turning guide 16, so that the document page discharging operation can be performed more smoothly. Thus, the reliability of the page turning operation of the page turning reading unit 1 is greatly improved.

On the other hand, in the embodiment shown in FIGS. 52 to 56,
The page storage member 15 of the page storage means 500 and the page turning guide 16 are integrally formed, and the rotation support pins 16c are planted outside the page storage side plates 63 disposed on both sides of the page storage member 15 to form a page. The entire storage means 500 is configured to rotate. Therefore, according to the page storage means 500, after the storage of the top page of the book document O in the page storage section (FIG. 53) is completed,
When the page-turning reading unit 1 is further moved in the page-turning direction (FIG. 54) and the discharging operation of the uppermost page is executed, the strength of the waist in the vicinity of the binding portion of the uppermost page causes the page storage means. Since the whole 500 is pushed up while rotating around its rotation support pin 16c (not shown), as shown in FIG. 55, a document page discharge path is secured during the discharge operation of the page turning reading unit 1. To be done. This page sliding means 50
The return operation after the document page of 0 is discharged is performed by the weight of the page turning guide 16 or the tension of a spring (not shown).

By the way, in the book document O, there is a case shown in FIG.
As shown in, the pages may have bent corners (folded ears) and the originals may be mixed. Also, in the book manuscript O,
Ear folds may occur due to defective page turning and reading operations.

Therefore, as shown in FIGS. 57 and 58, only when the original page is moved in the discharge direction at a proper position on the inner peripheral surface of the page storage member 15 of the page storage means 500.
A protrusion-shaped edge-folding correction member 69 is provided so that the edge-folded portion of this document page can be caught. As a result, when the original page is moved in the discharge direction, the edge-folded portion of the original page is caught by the edge-fold correction member 69,
The edge-folded portion of this document page is stretched and discharged.

Here, the above-mentioned edge breakage correction member 69 can be replaced with another member. That is, FIG.
The page accommodating means 500 shown in FIG. 9 is an embodiment in which the rear end portion 15d of the page accommodating member 15 is replaced with the ear fold correction member 69. According to this embodiment, when the manuscript page is moved in the discharge direction, as shown in FIG. The bent portion of the ear is stretched and discharged.

Also, the page storage means 500 shown in FIG.
Is an embodiment in which the rear end portion 16h of the page turning guide 16 is replaced with the ear fold correction member 69. According to this embodiment, when the document page is moved in the discharging direction,
As shown in FIG. 5, the edge-folded portion of the original page is caught by the rear end portion 16h of the page-turning guide 16, whereby the edge-folded portion of the original page is extended and discharged.

On the other hand, the edge break of the original page as shown in FIG. 56 may occur at the edge of the original page of the next page during the page separation operation of the original page. In the case of correcting such an edge fold of the document edge of the next page, as shown in FIG. 63 or 64, a member arranged on the document placing surface 100a side of the page turning reading unit 1 (this embodiment). In the example, the reading sensor 13 or the page turning guide 1
In 6), the end portion is extended toward the downstream side in the reading and scanning direction, and the flexible ear bending correction member 69 made of Mylar, a metal thin plate, or the like is arranged by pasting or screwing. As a result, when the book document O is read and scanned, the bending of the next original page can be corrected.

FIG. 65 shows the operation of the embodiment in which the ear bending correction member 69 is arranged at the downstream end of the reading sensor 13 in the reading scanning direction. The edge-folding correction member 69 in this embodiment is pressed against the document surface of the book document O at least when the book document O is read and moved. The extended end portion of the edge-folding correction member 69 is first engaged with the edge-folded portion of the book document O as shown in FIG. 65 (a) by the movement of the page turning reading unit 1 in the reading scanning direction. . The edge-folded portion of the book original O is further moved in the reading scanning direction of the page-turning reading unit 1 so that the page-turning reading unit 1 shown in FIG.
As shown in (b), it is extended by the extending end portion of the ear-folding correction member 69, and is corrected as shown in FIG. 65 (c). Here, by making the shape of the tip end portion of the edge-folding correction member 69 project in an arc shape as shown in FIG. 66, in particular, the edge-folding correction for the edge-folded portion of the document page as shown in FIG. 56 is performed. The leading end of the member 69 is smoothly brought into contact with the document page, so that the document page is prevented from being damaged at the time of correcting the edge fold.

By the way, as described above, the page storing means 500 is composed of the page storing member 15 and the page turning guide 16, and the page turning guide 16 rotates along the inner peripheral surface of the page storing member 15. In the case where the page turning guide 16 is configured to enter while moving, as shown in FIG. 67, the radius of curvature r2 of the part of the page turning guide 16 that enters the page storage member 15 is determined by Although it is set smaller than the radius of curvature r1, the radius of curvature r3 of the document guide portion of the page turning guide 16
Is set to be larger than the radius of curvature r1 of the inner peripheral surface of the page storage member 15. Also, this page turning guide 16
Since the center of rotation of is the center of the page storage member 15,
By the rotation of the page turning guide 16, the end portion of the document guide portion is largely shaken as shown by a chain line in FIG. Therefore, such page storage means 50
At 0, it is necessary to secure a space in the page turning reading unit 1 that allows the turning of the page turning guide 16, and the page turning reading unit 1 becomes large.

Therefore, the page storing means 500 described below
Then, as shown in FIGS. 68 to 80, the page storage member 15 ′ and the page turning guide 16 ′ on the document page entry side are formed in a comb shape. According to the page storage means 500 configured in this way, the page storage member 15 'and the page turning guide 1
6'in the original page entry side, that is, the respective comb-tooth-shaped portions are in the normal state.
4, as shown in FIG. 75, FIG. 78, FIG. 79, etc., by setting the position of the page-turning guide 16 ′ with respect to the page storage member 15 ′ so as to intersect with each other, as shown in FIG. This page turning guide 1
The rotation center position of 6'and its rotation radius r4 can be arbitrarily set, and its shape is restricted (in the above-mentioned example, the position of the part of the page turning guide 16 that enters the page storage member 15). The radius of curvature r2 is limited, and the shape of the page turning guide 16 'can be designed to be an optimum shape, so that the space required for rotating the page turning guide 16' can be reduced.

Specific configurations of the respective embodiments shown in FIGS. 69 to 80 will be described below. First, FIG.
In the embodiment shown in Fig. 9, inside the three stays 15'b arranged substantially parallel to each other, a substantially equal interval is maintained, and a substantially C
A plurality of page-storing rings 15'a made of stainless steel bent in a letter shape are welded or adhesively fixed to form a page-storing member 15 ', and one is arranged substantially parallel to the stay 15'b. Inside the stay 16'b, a plurality of slightly bent stainless steel page-turning guide claws 16'a are welded or adhesively fixed to each other to form the page-turning guide 16 'with a substantially equal interval. These page storage members 15 'and the page turning guide 1
6'may be formed of a sheet metal member in which the end portion of the plate material is formed in a comb tooth shape.

Here, the page turning guides 16 'have their respective page turning guide claws 16' as shown in FIG.
a is each page storage ring 1 of the page storage member 15 '
5'a are arranged so as to intersect with each other in a normal state. Also, as shown in FIG. 70, between the document page entry end of each page storage ring 15'a of the page storage member 15 'and each page turning guide claw 16'a of the page turning guide 16', as shown in FIG. A paper ejection guide roller 70 is rotatably arranged.

When turning pages of the book original O in this embodiment, as shown in FIG. 71, the original page entry end of each page turning guide claw 16'a of the page turning guide 16 'is turned over from the book original. It is located near the top page turning position.

Further, when the pages of the book original O in this embodiment are discharged, as shown in FIG. 72, the page turning guide 16 'has its respective page turning guide claws 16' around its supporting shaft 16'c. The original page entrance end of a is the page storage ring 15 'of the page storage member 15'.
It is rotated until it is located above the document page entry edge of a. By the rotation of the page-turning guide 16 ', the discharge guide roller 70 covers the document page entry end of each page storage ring 15'a of the page storage member 15', and the discharge path of the document page to be discharged. The document page exposed and discharged is discharged along the outer peripheral surface of the discharge guide roller 70 while rotating the discharge guide roller 70.

In the embodiment shown in FIG. 73, as in the above embodiment, three stays 15'b arranged substantially parallel to each other are provided.
A plurality of stainless steel page storage rings 15'a bent into a substantially C shape are welded or adhesively fixed to the inside of the sheet at substantially equal intervals to form a page storage member 15 ', Welding a plurality of slightly bent stainless page-turning guide claws 16'a inside a single stay 16'b arranged substantially parallel to 15'b, keeping a substantially even interval. Alternatively, the page-turning guide 16 'is configured by being fixed by adhesion. The page accommodating member 15 'and the page turning guide 16' may be formed of a sheet metal member in which the ends of the plate material are formed in a comb tooth shape.

Here, as shown in FIG. 74, the page turning guides 16 'have their respective page turning guide claws 16'.
a is each page storage ring 1 of the page storage member 15 '
5'a are arranged so as to intersect with each other in a normal state. Also, at the document page entry end of each page-turning guide claw 16'a of the page-turning guide 16 ',
As shown in FIG. 74, a turning guide tip roller 71 is rotatably arranged.

When turning pages of the book original O in this embodiment, as shown in FIG. 75, the original page entrance end of each page turning guide claw 16'a of the page turning guide 16 'is turned over from the book original. It is located near the top page turning position.

Further, at the time of ejecting pages of the book original O in this embodiment, as shown in FIG. 76, the page-turning guide 16 'has its respective page-turning guide claws 16' around its supporting shaft 16'c. The original page entrance end of a is the page storage ring 15 'of the page storage member 15'.
It is rotated until it is located above the document page entry edge of a. The rotation of the page-turning guide 16 'prevents the page-turning guide tip roller 71 from projecting the original page entrance end of each page storage ring 15'a of the page storage member 15' so as to discharge the original page to be discharged. The document page exposed in the path and discharged is discharged along the outer peripheral surface of the turning guide tip roller 71 while rotating.

In the embodiment shown in FIG. 77, like the above embodiment, three stays 15'b arranged substantially parallel to each other are provided.
A plurality of stainless steel page storage rings 15'a bent into a substantially C shape are welded or adhesively fixed to the inside of the sheet at substantially equal intervals to form a page storage member 15 ', Welding a plurality of slightly bent stainless page-turning guide claws 16'a inside a single stay 16'b arranged substantially parallel to 15'b, keeping a substantially even interval. Alternatively, the page-turning guide 16 'is configured by being fixed by adhesion. The page accommodating member 15 'and the page turning guide 16' may be formed of a sheet metal member in which the ends of the plate material are formed in a comb tooth shape.

Here, as shown in FIG. 78, the page turning guides 16 'have their respective page turning guide claws 16'.
a is each page storage ring 1 of the page storage member 15 '
5'a are arranged so as to intersect with each other in a normal state. Also, at the document page entry end of each page-turning guide claw 16'a of the page-turning guide 16 ',
As shown in FIG. 78, a storage ring tip roller 72 is rotatably arranged.

When turning pages of the book original O in this embodiment, as shown in FIG. 79, the original page entry end of each page turning guide claw 16'a of the page turning guide 16 'is turned over from the book original. It is located near the top page turning position.

When pages of the book original O in this embodiment are discharged, as shown in FIG. 80, the page turning guide 16 'has its page accommodating ring 15'a about its supporting shaft 16'c. The original page entry end of each of the page turning guide claws 16'a of the page storage member 15 '
The document is rotated until it comes close to the upper side of the document page entrance end. This rotation of the page-turning guide 16 'prevents the storage ring tip roller 72 from projecting the original page entrance end of each page-turning guide claw 16'a of the page-turning guide 16' so that the original page to be ejected is not ejected. The original page exposed in the discharge path and discharged is discharged along the outer peripheral surface of the storage ring tip roller 72 while rotating.

By the way, as shown in FIG. 5, the page turning reading unit 1 of the present embodiment has a reading means 4 as shown in FIG.
00 (reading sensor 13) and page storing means 500
(Page storage member 15 and page turning guide 16)
Are arranged in parallel with each other along the reciprocating movement direction of the page turning reading unit 1, so that the operation of the page turning reading unit 1 during the reciprocating movement is stabilized. In addition, the page turning reading unit 1 of the present embodiment
Indicates that the page turning direction and the reading scanning direction are
Since the page turning reading unit 1 makes one reciprocal movement, the reading and scanning of the original pages of the book original O and the page turning operation are completed, and the original processing efficiency is improved. It further,
As shown in FIG. 5, the page turning reading unit 1 according to the present embodiment has a reading unit 400 (reading sensor 1).
3) and the page storing means 500 (the page storing member 15 and the page turning guide 16) are arranged integrally with each other in the bypass portion 200a of the page pressing belt 200, so that the page pressing belt 200 is used. The pages of the document surface of the book document O can be efficiently pressed.

On the other hand, inside the reading sensor 13 shown in FIG. 81, an LED array 73, a lens 74, a SELFOC lens array 75, a CCD 76 and the like are arranged.
In FIG. 81, the light from the LED array 73 corresponds to the lens 74.
After being collected by, the platen glass 77 formed into a rounded surface is transmitted to illuminate a document surface (not shown). Then, the image of the original surface illuminated as described above is imaged on the CCD 76 by the SELFOC lens array 75, converted into an electric signal, and read.

As described above, since the platen glass 77 on the reading surface of the reading sensor 13 is formed in a rounded surface shape, even when the original surface of the book original has irregularities, the reading scanning is performed. The reading surface follows the unevenness of the document surface, and scanning can be performed while smoothing the unevenness of the document surface, and a stable reading operation can be performed.

Further, the reading sensor 13 shown in FIG.
Is constituted by rotatably supporting a reading roller 78 which is rotatable in the reading and scanning direction in front of and behind the reading surface. According to the reading sensor 13, as described above, the reading roller 78 rotatably supported in the front and back of the reading surface and rotatable in the reading scanning direction always flattens the original surface of the book original. Because you press
Even when the original surface of the book original has irregularities, the scanning can be performed while flattening the irregularities on the original surface during scanning, and a stable reading operation can be performed.

In the page-turning reading unit 1 shown in FIG. 83, the belt supporting roller 6 is provided with the page pressing belt 20.
0 is configured to have a function as a charging roller (11) for forming an unequal electric field pattern. According to the page turning reading unit 1, the charging roller 11 can be omitted, so that the structure can be simplified. Here, for the other belt support roller 7,
It may be configured to have a function as a charging roller (11) for forming an uneven electric field pattern on the page pressing belt 200.

The page-turning reading unit 1 shown in FIG. 84 functions as a charging roller (11) for forming an uneven electric field pattern on the page pressing belt 200 on the belt supporting roller 6 (or the belt supporting roller 7). 85, and further, as shown in FIG. 85, the page pressing belt 200 is provided with an insulating layer 200a.
And a conductive layer 200b. In FIG. 85, the surface of the page pressing belt 200 on which the uneven electric field pattern is formed has a volume low efficiency of 10 ^13.
The conductive layer 200b, which is composed of the insulating layer 200a having a thickness of about Ωcm to 10 ¹⁶ Ωcm and functions as a counter electrode when forming the nonuniform electric field pattern of the page pressing belt 200, has a volume low efficiency of 10 ⁶ Ωcm or less.

In this embodiment, the page pressing belt 200 is used.
As for, mylar with aluminum vapor deposition on the inner surface is used. According to the page-turning reading unit 1, the charging roller 11 can be used also by another roller, and the counter electrode roller 12 can also be used by another roller, so that the structure is simpler. Can be converted. In this embodiment, the charging roller 11 is also used as the belt support roller 6, and the counter electrode roller 1 is used.
2 is also used as the separation roller 10.

Further, as shown in FIG. 84, sensor riding guides 79 made of a thin metal plate or mylar are provided at both ends in the reading scanning direction of the reading sensor 13 in the page turning reading unit 1 of this embodiment. Has been done. In the page-turning reading unit 1 of this embodiment, even when the reading sensor 13 abuts on the end of the book original when the book original is run on the book original, the above-described sensor run guide 79 causes
Since the end of the document is guided to the lower side of the reading sensor 13, there is no problem that the reading sensor 13 comes into contact with the end of the document and is stopped, and the riding operation on the book document is smoothly performed.

Further, in this embodiment, as shown in FIG. 84, a high voltage generator (power pack) 80 for applying a high voltage to the belt supporting roller 6 (charging roller),
The page turning reading unit 1 is integrally formed and arranged. Therefore, according to this embodiment, the high voltage cable 81 for applying a high voltage to the belt supporting roller 6 (charging roller) can be shortened to the minimum, and the safety of the apparatus is improved.

In the page-turning reading unit 1 of the embodiment shown in FIG. 86, the reading sensor 13 and the page riding means 500 and the running guide 18 of the page storage unit 500 and the unit side plate 5, respectively. It is configured to be assembled from the outside to the inside. A pair of guide side plates 17a are formed by bending upward on the front and rear side portions of the riding guide 17, and the belt support roller 8 is rotatably supported between the guide side plates 17a. Positioning pins 17b are planted in the guide side plates 17a. As shown in FIG. 87, the positioning pin 17b is fitted and supported in the pin groove 17c formed in the unit side plate 5 from the outside to the inside. The riding guide 17 has a screw hole 17 formed in the unit side plate 5 with the positioning pin 17b fitted in the pin groove 17c.
It is fixed to the page turning reading unit 1 by screwing a set screw 17e to d.

On the other hand, a pair of guide side plates 18a are formed on the front and rear side portions of the riding guide 18 so as to be bent upward, and between the guide side plates 18a, the turning roller 9, the separating roller 10, The counter electrode roller 12 is rotatably supported. Positioning pins 18b are planted in the guide side plate 18a. As shown in FIG. 87, the positioning pin 18b is fitted and supported in the pin groove 18c formed in the unit side plate 5 from the outside to the inside. The riding guide 18 is fixed to the page turning reading unit 1 by screwing a set screw 18e into a screw hole 18d formed in the unit side plate 5 with the positioning pin 18b fitted in the pin groove 18c. Fixed.

As described above, in the page turning reading unit 1 of the embodiment shown in FIG. 86, the riding guide 17
However, together with the belt support roller 8, the riding guide 18
However, together with the turning roller 9, the separating roller 10, and the counter electrode roller 12, they are configured to be attachable to and detachable from the outer side of the unit side plate 5 toward the inner side thereof. Therefore, in this embodiment, as shown in FIG. 87, when the page turning reading unit 1 is assembled, the member A disposed on the inner peripheral surface side of the page pressing belt 200 and the outer peripheral surface side of the page pressing belt 200 are assembled. Since it is possible to separate the member B disposed in the member B from each other, the members A and B can be independently assembled in advance, and then the page pressing belt 200 is sandwiched between the members B to assemble the member A into the member B. , Page turning reading unit 1 and page presser belt 20
0 can be assembled.

In the MFDS of this embodiment, as shown in FIG. 2, the cleaning roller 82 is provided above the original placing surface 100a at the home position side of the original placing table 100 (the 1H portion in FIG. 4). Part of its peripheral surface is projected to
It is rotatably arranged. This cleaning roller 8
88, the reading surface of the reading sensor 13 (the platen is the lower surface of the lath) when the page turning reading unit 1 is at its home position, as shown in FIG.
Is arranged in a position to abut. The cleaning roller 82 is rotationally driven (the rotation direction is not particularly limited) by a driving device (not shown), and every time the page turning reading unit 1 is returned to its home position, the reading surface of the reading sensor 13 (platen The reading surface of the reading sensor 13 is rotated and cleaned by contacting the lower surface of the lath).

Here, as a cleaning means for the reading surface of the reading sensor 13, a cleaning member made of felt or the like is fixedly arranged on the original placing surface 100a, and every time the page turning reading unit 1 is reciprocally moved. The reading surface of the reading sensor 13 may be rubbed and cleaned. Further, the arrangement position of the cleaning means is the page turning reading unit 1
Is not limited to the home position position, and may be a position within the reading scanning movement range outside the placement region of the maximum size book document that can be placed.

By the way, in the MFDS page pressing belt 200, as shown in FIG. 1, one of the belt ends has a belt tension fixing roller 83 (home position side).
The belt supporting roller 84 (at the home position side) is bent in a direction along the document placement surface 100a to form the bypass 200a in the page turning reading unit 1, and then another Folded upward by the belt support roller 85 (folding point side),
The other belt end is fixed to the belt tension movable roller 87 attached to the lower end of the tension spring 86, and the tension force of the tension spring 86 pulls the belt tension movable roller 87 upward, A predetermined tension is applied to the page pressing belt 200.

As shown in FIG. 89, when a relatively thick book document O is set, when the operator closes the upper unit 2, a pressure Fa in the closing direction is applied to the upper unit 2. As a result, the page pressing belt 20
A reaction force Fb in the direction of opening the upper unit 2 acts on the contact portion of the book document O of 0.

Therefore, one end of the page pressing belt 200 is fixed to the main body of the apparatus, and the other end is supported by a tension applying means having elasticity such as a spring or rubber to apply tension to the page pressing belt. In the case where the tension is applied, the elongation amount of the tension applying means changes depending on the conditions such as the size and thickness of the book original, and as a result, the tension applying means particularly supports the tension applying means. There is a problem in that the misalignment of the page pressing belt causes the misalignment of the reading unit and the reading position of the image is displaced. The positional deviation of the reading unit becomes particularly noticeable when the tension applying means is arranged on the home position side.

Therefore, the page pressing belt 20 of this embodiment is used.
At 0, the end of the page turning reading unit 1 on the folding point side is fixed to the belt tension movable roller 87 that can move up and down against the tension force of the tension spring 86. As a result, as described above, even if excessive tension is applied to the page pressing belt 200 and the tension spring 86 expands, causing a displacement of the contact position of the page pressing belt 200 with respect to the document surface, the page is turned. Reading unit 1
It is possible to eliminate the positional deviation of the document surface on the home position side, and to improve the positional accuracy of the operation control of the page turning reading unit 1.

The positional deviation of the document surface on the turnaround point side of the page turning reading unit 1 at this time is substantially eliminated by the reading scanning movement of the page turning reading unit 1. Therefore, the document surface in this embodiment is the result. Almost no positional deviation occurs. Further, the displacement of the document surface on the turnaround point side of the page-turning reading unit 1 when the document is set acts to loosen the end of the page-turning edge of the set book document O. This has the effect of preventing multiple page turning due to.

By the way, the tension of the page pressing belt 200 (including the tension force of the tension spring 86) gradually decreases as the upper unit 2 is repeatedly opened and closed and the page turning reading unit 1 is repeatedly moved. Therefore, in this type of device, the page pressing belt 200
It is necessary to readjust the tension in timely. At the time of this adjustment, it is not so difficult to replace the tension spring 86, and the cost is not heavy. On the other hand, if only the length of the page pressing belt 200 is longer than the initial length and it can still be used sufficiently, it is necessary to replace the page pressing belt 200 with the replacement work. It requires a great deal of labor and is a heavy burden on the cost.

Therefore, in this embodiment, as shown in FIG. 1, the belt tension fixing roller 83 to which the belt end on the home position side of the page pressing belt 200 is fixed is connected to the upper unit via a one-way clutch 88. 2. According to this embodiment, as described above, in the case where only the length of the page pressing belt 200 is longer than the initial length and it is still usable, the belt tension fixing roller is used. By rotating 83 in a predetermined direction (moving direction of the one-way clutch 88) and winding the stretched and loosened portion of the page pressing belt 200 around the belt tension fixing roller 83, this page can be easily operated. The tension of the presser belt 200 can be readjusted as needed. Further, according to this embodiment, even when the tensioning force of the tension spring 86 is slightly reduced, the belt tension fixing roller 83 is rotated in a predetermined direction to surround the belt tension fixing roller 83. Further, by winding the page pressing belt 200, the tension force can be restored without replacing the tension spring 86.

On the other hand, as shown in FIG.
A center groove 100b for inserting the binding portion of the book document O is formed in the central portion of 00a. less than,
Embodiments of the book document positioning member 89 selectively arranged in the center groove 100b according to the type of book document will be described.

First, in the embodiment shown in FIGS. 90 and 91, the lower surface of the book document positioning member 89 provided in the center groove 100b is projected downward and the center groove 10 is formed.
It is formed in a triangular or semicircular shape that makes line contact with the bottom surface of 0b. This book document positioning member 8
In No. 9, the binding portion of the set book document O is tilted in accordance with the operation of tilting a large number of pages although it has many pages. As a result, the book document O is set in an optimum state so that the document surface is the smoothest. Here, the protrusions on the lower surface of the book document positioning member 89 may be formed over the entire area of the center groove 100b in the longitudinal direction, or may be formed partially at several points in the longitudinal direction of the center groove 100b. May be.

In the embodiment shown in FIG. 92, book document positioning member 89 arranged in the center groove 100b.
Is a long and flat positioning plate 90 that fits in the center groove 100b, and a document mounted between the protrusion formed on the lower surface of the positioning plate 90 and the protrusion formed on the bottom surface of the center groove 100b. The positioning spring 91 is elastically supported by the document positioning spring 91. The book document positioning member 89 follows the operation of the set book document O having a large number of pages in the binding portion but tilted to the side, and as shown in FIG. 93, the positioning plate 90 is moved by the elasticity of the document positioning spring 91. Inclined. As a result, the book document O is set in an optimum state so that the document surface is the smoothest. Further, in this embodiment, the positioning plate 90 on which the book document is placed pushes up the binding portion of the set book document O by the elastic force of the document positioning spring 91, so that the reading unit 13 for the document surface of the book document O is set. The adhesiveness of is improved. Here, the protrusion on the lower surface of the positioning plate 90 is formed by the center groove 10
The groove 0b is partially formed at several positions in the longitudinal direction of the center groove 100b at the approximate center in the width direction.

In the embodiment shown in FIG. 94, the center groove 10
The book original positioning member 89 disposed in the 0b is made of gel-like silicon rubber. The book document positioning member 89 is made of silicon rubber formed in a gel shape so as to match the shape of the bound portion of the book document O that is opened and set.
9 is deformed and set in an optimum state so that the document surface of the book document O becomes the smoothest. In the embodiment shown in FIG. 95, the book document positioning member 89 arranged in the center groove 100b is a long positioning plate 92 having a roof-shaped upper surface that fits in the center groove 100b.
The document positioning spring 93 is mounted between the lower surface of the positioning plate 92 and the bottom surface of the center groove 100b, and the positioning plate 92 is elastically supported by the document positioning spring 93. In this book document positioning member 89, the valleys of the bound portions of the set book document O are supported by the apexes of the upper surface of the positioning plate 92 and are opened, so that the document surface of the book document O becomes the smoothest. Then, the optimum state is set. Further, in this embodiment, the top of the positioning plate 92 on which the book document is placed (the substantial center in the width direction of the center groove 100b) is the valley of the binding portion of the book document O that is opened and set. That is, since the center part of the book document O in the opened state is supported, the center position of the document surface of the book document O is always constant, and the position accuracy of the operation control of the page turning reading unit 1 is improved. ..

In the embodiment shown in FIG. 96, the center groove 100
The book document positioning member disposed in b is composed of the binder unit 94, and is suitable for supporting a relatively thin book document and a document in which a plurality of sheets are stapled or bound with a binding string. It has a different structure. That is, the binder unit 94 has a long channel member 95 fitted in the center groove 100b.
A binder clip 97 swingably supported by a clip shaft 96 extending in the longitudinal direction of the channel member 95, and the channel member 9 attached to the binder clip 97.
5 and a binder spring 98 for urging the habit of swinging toward the document supporting portion 95a. According to this embodiment, as shown in FIG. 97, the binder clip 9
7 is pressed to open the original document supporting portion 95a of the channel member 95, and the binder clip 97 and the original document supporting portion 95a are sandwiched between the original document supporting portions 95a, thereby binding a plurality of sheets, as shown in FIG. The sheet original 99 can be set without removing the stapler (or binding string) 99a.

Here, each of the book document positioning members 89 described above is configured to be attachable / detachable to / from the center groove 100b at the center of the document placing surface 100a, and the type of book document to be set. Alternatively, an optimum positioning member can be selected and used according to the page position to be opened and the like.

In the following embodiment, the set position of the binding portion of the book original in the center groove 100b according to the size of the book original is set to the reference position of the original placing surface 100a (the position on the front side of the apparatus main body). It is an example of a book document positioning unit configured to be aligned. As shown in FIGS. 99 to 101, the book document positioning means is configured such that the document set guide 101 is slidably fitted in a guide groove 100c formed along the longitudinal direction of the bottom of the center groove 100b. It is configured. According to this book document positioning means, as shown in FIG.
After the binding portion of the book document O is fitted into the reference position b (the position on the front side of the apparatus main body), the document setting guide 101
The book document O is positioned by moving the book document O until it hits the book document. Therefore, in this embodiment, it is possible to prevent the displacement of the book document during the operation of the apparatus.

By the way, the page turning reading unit 1 in the present embodiment, as shown in FIG. 3, first, while moving from its home position toward the folding point, the reading sensor 13 causes the reading original 13 to read the original of the book original O. The surface is read and then as shown in FIG.
During the return movement from the turning point toward the home position, the operation of turning over the document page that has been read is performed. Further, in the page turning reading unit 1 in this embodiment, as shown in FIG. 5, the page storing means 500 for turning the page is located at the home position of the page turning reading unit 1, that is, in the reading scanning direction. The upstream of the reading means 400 is arranged in parallel with the alligator. Therefore, in this embodiment, in order to surely turn up the original pages of the book original O by the page pressing belt 200, the entire original surface of the book original O set on the original table 100 is set to the page pressing belt 200. The page storage means 500 for turning at least the page while being electrostatically attracted to the
However, it is necessary to set the turning point of the page turning reading unit 1 so that the downstream side in the reading scanning direction is located at the edge of the turning point side end of the book document O.

Therefore, in the present embodiment, as shown in FIG. 102, the page turning reading unit 1 moves in the reading scanning direction, and the reading sensor 13 of the book original O on the side of the folding point (see FIG. 102). When the page turning reading unit 1 reaches the point P), the page turning reading unit 1 is further moved in the reading scanning direction, and the turning roller 9 passes the point P of the book document O and reaches a predetermined distance (the above condition). (The distance required to satisfy the above condition), the movement of the page turning reading unit 1 in the reading scanning direction is stopped at this position, and the page turning reading unit 1 is moved to its home position using this position as the turning point. It is configured to return and move toward the original, and perform a turning operation of the manuscript page that has been read.

FIG. 103 is a flowchart for controlling the operation of the page turning reading unit 1 of this embodiment.
Shown in. In FIG. 103, when the page-turning reading unit 1 is operated and a subroutine of its drive control means (not shown) is started, first, the page-reading unit 1 is moved in the reading scanning direction by a predetermined amount. It is determined whether or not. Here, the predetermined amount is
A distance obtained by subtracting a distance (50 mm in this embodiment) for allowing a margin for the document edge detection operation described later from the book spread size input in advance, or from the home position of the page turning reading unit 1 to the document center. The distance to the department.

Accordingly, when it is determined that the page reading unit 1 has moved by the predetermined amount in the reading scanning direction, it is determined whether the reading sensor 13 has detected the edge of the book original O or not. Here, as a method of detecting the edge of the book document O by the reading sensor 13, for example, a read signal of the document surface of the book document,
This is performed by detecting the difference from the read signal on the document placement surface.

Accordingly, when it is determined that the reading sensor 13 has detected the edge of the book original O, the counter counts for t seconds. This count time t
(T = 1 in this embodiment) is the time required to continue the movement of the page turning reading unit 1 in the reading scanning direction by the distance required to satisfy the above conditions, and is the turning point. Is determined by the distance from the position of the reading sensor 13 to the edge of the book document O (25 mm in this embodiment) and the moving speed of the reading sensor 13 in the reading scanning direction (25 mm / sec in this embodiment).

When the count value of the counter reaches this count time t, the drive motor 42 is rotated in the reverse direction,
The return movement of the page turning reading unit 1 toward the home position is started, the control by this subroutine is completed, and the process is returned to the main routine.

As described above, in this embodiment, since the reading operation and the page turning operation of the page turning reading unit 1 can be controlled as a series of movements, the continuous operation is possible and the driving efficiency is improved.

By the way, as described above, if the position at which the reading sensor is retracted is simply set at a position apart from the scanning start position by a certain distance, the state of the book original, that is, the page of the same original is not changed. Since the position of the edge of the book document changes depending on the conditions such as the position, the reading sensor descends and hits the side of the book document before the reading unit has finished riding on the book document, or the reading sensor has already been read. Even though the document has reached the document surface, the reading sensor is not lowered,
There is a problem that the position of the read image is misaligned or the image is missing.

An embodiment in which the above problems are solved will be described below. In the first embodiment, as shown in FIGS. 28 to 34, an elevating mechanism is provided in the reading means 400 of the page turning reading unit 1 (hereinafter, simply referred to as a reading unit), and the book document is raised during reading scanning. The reading sensor 13 is retracted from the document surface at the time and when the binding portion at the center thereof is passed. In the second embodiment, the document detecting means 102 is provided on the lower surface of the position where the scanning of the reading sensor 13 precedes the scanning, and the document detecting means 10 is provided.
The reading sensor 13 is retracted according to the detection result of 2.

Reading sensor 13 of reading means 400
The image reading surface can be moved up and down by about 5 mm above and 10 mm below the bottom surface of the reading unit 1, that is, the flat document surface, by its lifting mechanism. Thus, the book document O is scanned while being pressed. In addition, this reading means 400
According to an instruction from the controller, as described above, can be retracted upward by about 5 mm by the sensor drive source 62.

In the first embodiment, the controller is
The position of the edge portion of the book document is detected based on the size of the book document O input or detected. Here, for example, the edge portion of the book document O in the case of the spread size A3 is 210 from the center position to the reading sensor 13.
mm, 30 to the home position of the reading unit 1
The position is 0 mm.

In the first embodiment, the reading sensor 13 is raised at the home position and scanning is started. Next, when the reading sensor 13 reaches 5 mm before the reading start edge of the book document, the reading sensor 13 is lowered. Then, after the reading sensor 13 has moved 5 mm in the scanning direction, reading of data is started from the edge portion of the book document.

This reading means 400 is used for book document O.
Even at the stepped portion of the central binding portion of the above, the same is retracted as described above.
At this time, since the book document O is the center reference, the evacuation timing of the reading means 400 is set at a position 240 mm from the home position by the scanning control address of the reading unit 1. The evacuation section of the reading means 400 can be designated according to the type of book document, and for example, a section of ± 10 mm from the position of the center of the document, that is, 23 from the home position in this example.
The section is from 0 mm to 350 mm.

Here, since the central binding portion of the book document changes according to the number of pages to be turned, it is not always a constant distance from the home position. Therefore,
The retracted position of the reading unit 400 in the central binding unit is calculated based on the reading start position of the book document O, and when the reading unit 400 moves by a predetermined amount from the reading start position, for example, in the case of a document with a spread A3. ,
Since the reading sensor 13 is retracted at a position about 200 mm from the start position from the reading, the retracted position of the reading unit 400 does not shift even if the central binding portion is displaced.

On the other hand, in the second embodiment, as shown in FIG. 104, the reading means 40 in the reading unit 1 is used.
An original detecting unit 102 including a micro switch for detecting the original surface, a reflection type optical sensor, or the like is provided at a position preceding the 0 scanning. This document detecting means 102
It is arranged to operate only when the document surface is flat. Therefore, the document detecting means 102 is shown in FIG.
As shown in FIG. 3, the reading unit 1 is operated when the reading document 1 is placed on the book document O and moved up by several millimeters. Also,
The detection amount is set to a value that allows the reading unit 400 to scan the book document O.

After the detection operation of the document detecting means 102, the controller turns on the sensor driving source 62 and retracts the reading means 400 upward. As a result, when a step that the reading unit 1 cannot climb is detected, the reading sensor 13 is retracted.

Next, as shown in FIG. 106, when the document detecting means 102 rides on the document surface and moves in the scanning direction 15 mm after the sensor is turned on, the sensor drive source 62 is turned off to read the document. The sensor 13 is lowered onto the document surface. At this point, the end of the reading unit 400 is about 10 mm from the end of the book document O, and the position of the reading sensor 13 reaches the end of the book document, and the reading sensor 13 starts reading from this position.

Also, when the book document is thick and the step of the central binding portion when the book document is opened is large, the reading means 400 is similarly retracted. When the step of the central binding portion is larger than the reference detected by the reading sensor 13, the reading unit 400 is retracted when it is turned off, and the reading is performed when the reading sensor 13 is turned on again after passing through the central portion. The means 400 is replaced. Here, since the position of the reading sensor 13 and the position of the reading means 400 are deviated, the reading means 40 is provided with a delay of several millimeters.
You may move 0 up and down. In addition, this reading means 400
If the falling period of is the original reading period, an image excluding the end portion of the book original and the binding portion can be obtained, and the optimum reading range can be easily obtained.

Therefore, according to the second embodiment, the reading sensor 13 is retracted and smoothly scanned without inputting the size of the book original, that is, the position of the edge of the book original.

In the third embodiment, the document surface is detected by the output information of the reading sensor 13 and the reading means 400 is set at the reading position. In the third embodiment, the image information of the reading sensor 13 detects the end of the book document.

The detected edge of the book document is, for example, the edge portion of the book document O in the case of the spread size A3 from the central position to the reading sensor 13 210.
mm, 30 to the home position of the reading unit 1
The position is 0 mm.

Here, the end of the book document is detected by the change of the read information by the specific pixel of the read sensor 13 in the sub-scanning direction. This read data is as shown in FIG. 107 at the edge of the book document.
Here, at the left end of the book document, the reading unit 400
Is retracted by 5 mm or more above the document surface, so that the image plane is out of focus and a blurred image is formed. Also,
When the position of the reading sensor 13 has not reached the document surface, the reading slit position is not exposed and is at the same level as the black image.

When this reading sensor position comes close to the book original, the image is slightly focused and a striped pattern portion due to the edge of the page is detected. Then, the background color portion of the document is detected as an average from the end of the book document.

Here, the background color of most books is white, and generally, there are no characters or images on the surface 10 mm or more from the edge of the page. Therefore, when this uniform color continues, it is determined to be the end of the book document. For this determination, it is effective to improve the accuracy by using the outputs of a plurality of reading sensors. In addition,
In this embodiment, the end portion of the book document is detected by the image reading information of the reading sensor 13 in the reading unit 1. However, as in the second embodiment, the reading means 400 in the reading unit 1 is used. The same control can be performed even if the document surface is detected by a reflection type optical sensor arranged at a position preceding the scanning.

At the home position, the controller raises the reading means 400 to start scanning. Next, the reading sensor 13 is lowered at the edge position of the book document detected by the reading sensor 13, and at the same time, reading of the book document is started. This is repeated for each reading operation.

According to the third embodiment, the reading sensor 13 can be easily mounted on the book original, and the end portion of the book original is displaced by the reading start position determined as described above. Regardless of this, an effective image range suitable for image capturing and printing can be obtained.

In the fourth and fifth embodiments, the vertical position of the reading sensor 13 when riding on the document surface or when passing through the center is
It is changed depending on the page position of the book manuscript.

FIG. 108 shows a transition example of the left end portion of the book document with respect to the number of repeated page turns. Here, the position of the left end portion of the initial book document is set to 0 and expressed by the displacement amount, and the displacement amount to the right side is set to a plus unit in millimeters.

FIG. 108 (a) shows an original having a thickness of 20 mm and a total page count of 750 pages, and FIG. 108 (a) shows an original having a thickness of 12 mm and a total page count of 300 pages.
8 (a) is an original having a thickness of 9 mm and a total number of pages of 180, and the book size was set to a spread B4 size.

Generally, the left end portion of a book original is displaced to the right by turning the pages, but the displacement amount of the left end portion does not increase monotonically due to the change of the central binding portion of the original. Further, the central binding portion may slide in the left-right direction and may decrease conversely, and the thin document shown in FIG. 108 (c) is also displaced in the negative direction. Further, these are also influenced by the size and thickness of the book original, the quality of the paper, and the like. Here, the vertical movement of the book document is automatically corrected because the reading unit 1 moves up and down along the shape of the book document. However,
The position of the end of the document of the book is about 40 mm at the maximum, and the position of the central binding part may be changed by about 20 mm at the maximum. Therefore, when the reading means 400 is always moved up and down at a constant position, the reading sensor 13 collides with the end of the book document. Or the reading position at the edge of the document may be misaligned.

In view of this, in the present embodiment, with respect to the movement of the document surface end portion of the book document and the center binding portion to the right,
The vertical movement position of the reading sensor 13 is changed according to the page position of the book document to correct the above-mentioned misalignment.

In the fourth embodiment, proportional control is performed according to the number of pages of book originals.

In general, the left end of the book original is displaced rightward due to page turning. The inclination has a relationship of several millimeters / 100 pages from the angle data of FIG. 108, and is linearly approximated. For example, in FIG. 108A, it is 4.4 mm for a turning operation of 50 sheets for 100 pages.
The lift timing of the reading sensor 13 is delayed by the amount. As a result, on page 750, 33 mm from page 1
The timing for raising and lowering the reading sensor 13 is delayed by that amount. Also, the amount of displacement is large at the beginning of page turning,
It is even better to increase the rate of change in the raising / lowering timing there.

In the fourth embodiment, the displacement amount of the left end portion of the book document is designated in advance. That is, FIG. 108 (a),
The data of (b) and (c) are experimentally obtained in advance, and the profile data of the left end portion of the book document depending on the size, thickness, paper quality, etc. of the book document is stored in memory.

The controller calls the appropriate data according to the information such as the size, thickness and paper quality of the book document input or detected. For example, when the set book original is B5 size, thickness 12 mm, and the total number of pages is 300, the data of FIG. 108A is read,
The descent timing of the reading sensor 13 is determined by the data and the page position for reading scanning,
After that, every time the number of flipped sheets increases, the descending timing of the reading sensor 13 is changed according to the data of FIG. With this correction, the reading sensor 1 for the document surface
The lowered position of 3 and the position of the read image become substantially constant regardless of the repetition of the flipping operation, and the image is taken in or the reading noted on the print is performed.

Further, the position control for raising (retracting) or lowering the reading sensor 13 in the central binding portion is similarly performed.
It is executed so as to be changed in accordance with the displacement amount data of the book document central binding portion and the page position of the book document which are designated in advance.

[0152]

According to the present invention, it is possible to improve the riding property of the reading means on the document surface of the book document.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of a multi-function document scanner (MFDS) embodying the present invention.

FIG. 2 is a schematic perspective view of the MFDS when a document is set.

FIG. 3 is a schematic diagram showing an operation mode of a page-turning reading unit in the MFDS during reading scanning.

FIG. 4 is a schematic view showing an operation mode of a page turning reading unit in the MFDS when turning a page.

FIG. 5 is a cross-sectional view of the page turning reading unit.

FIG. 6 is a front view of a lifting mechanism of the page turning reading unit.

FIG. 7 is a side view of an elevating mechanism of the page turning reading unit.

FIG. 8 is a front view showing an operation mode of a lifting mechanism of the page turning reading unit.

FIG. 9 is a schematic perspective view of another lifting mechanism of the page turning reading unit.

FIG. 10 is a side view of another lifting mechanism of the page turning reading unit.

FIG. 11 is a perspective view showing a part of a drive system of the page turning reading unit.

FIG. 12 is a plan view of a drive system of the page turning reading unit.

FIG. 13 is a front view of a drive system of the page turning reading unit.

FIG. 14 is a schematic view of page turning means of the page turning reading unit.

FIG. 15 is a schematic view of another page turning means of the page turning reading unit.

FIG. 16 is a schematic view of still another page turning means of the page turning reading unit.

FIG. 17 is a schematic view of still another page turning means of the page turning reading unit.

FIG. 18 is a schematic view of an operation mode of page turning means of the page turning reading unit.

FIG. 19 is a perspective view of the separation roller displacement means of the page turning reading unit.

FIG. 20 is a schematic view of an operating mode of the separating roller displacement means of the page turning reading unit.

FIG. 21 is a schematic view of another operation mode of the separating roller displacement means of the page turning reading unit.

FIG. 22 is a schematic cross-sectional view showing an example of a configuration of a page turning reading unit in the MFDS.

FIG. 23 is a schematic sectional view showing an example of the configuration of a page turning reading unit in the MFDS.

FIG. 24 is a schematic cross-sectional view showing an example of the configuration of a page turning reading unit in the MFDS.

FIG. 25 is a schematic cross-sectional view showing an example of a configuration of a page turning reading unit in the MFDS.

FIG. 26 is a schematic cross-sectional view showing an example of a configuration of a page turning reading unit in the MFDS.

FIG. 27 is a schematic cross-sectional view showing an example of the configuration of a page turning reading unit in the MFDS.

FIG. 28 is a schematic side view of the swinging means and the elevating means of the reading sensor of the page turning reading unit.

FIG. 29 is a perspective view of constituent members of a swinging unit and a lifting unit of the reading sensor.

FIG. 30 is a side view of the constituent members of the swinging means and lifting means of the reading sensor.

FIG. 31 is a perspective view of one component of the swinging means and the elevating means of the reading sensor.

FIG. 32 is a partial plan view of another component of the swinging means and the elevating means of the reading sensor.

FIG. 33 is a partial perspective view of the components of the swinging means and the elevating means of the reading sensor.

FIG. 34 is another partial perspective view of the constituent portion of the swinging means and the elevating means of the reading sensor.

FIG. 35 is a partial perspective view of a page storage means of the page turning reading unit.

FIG. 36 is a schematic side view of page storage means of the page turning reading unit.

FIG. 37 is a perspective view of a page turning guide of the page storage means.

FIG. 38 is a perspective view of the leading end of another page-turning guide of the page storage means.

FIG. 39 is a plan view of the leading end of another page-turning guide of the page storage means.

FIG. 40 is a schematic perspective view showing a page turning operation of the page turning guide.

FIG. 41 is a schematic side view of another page storage means of the page turning reading unit.

FIG. 42 is a schematic side view of still another page storage means of the page turning reading unit.

FIG. 43 is a schematic side view showing an example of an operation mode of the page storage means.

FIG. 44 is a side view of the leading end of another page-turning guide of the page storage means.

FIG. 45 is a perspective view of a front end portion of the page turning guide.

FIG. 46 is a side view of the leading end portion of still another page turning guide of the page storage means.

FIG. 47 is a cross-sectional view of the leading end of still another page turning guide of the page storage means.

48 is a perspective view of a front end portion of the page turning guide shown in FIG. 47.

FIG. 49 is a cross-sectional view of the leading end portion of still another page turning guide of the page storage means.

50 is a sectional view of the leading end of the page turning guide shown in FIG. 49.

FIG. 51 is a side view of the leading end portion of still another page turning guide of the page storage means.

FIG. 52 is a schematic side view of still another page storage means of the page turning reading unit.

53 is a schematic side view showing an operation mode of the page storage means shown in FIG. 52.

54 is a schematic side view showing another operation mode of the page storage means shown in FIG. 52.

FIG. 55 is a schematic side view showing still another operation mode of the page storage unit shown in FIG. 52.

FIG. 56 is a perspective view of an example of a book document set in the MFDS.

FIG. 57 is a schematic side view of still another page storage means of the page turning reading unit.

58 is a schematic side view showing an operating mode of the page storage means shown in FIG. 57.

FIG. 59 is a schematic side view of still another page storage means of the page turning reading unit.

FIG. 60 is a schematic side view showing an operating mode of the page storage means shown in FIG. 59.

FIG. 61 is a schematic side view of still another page storage means of the page turning reading unit.

62 is a schematic side view showing an operating mode of the page storage means shown in FIG. 61.

FIG. 63 is a schematic diagram showing another configuration example of the page turning reading unit.

FIG. 64 is a schematic diagram showing still another configuration example of the page turning reading unit.

65 is an operation mode diagram of a reading sensor of the page turning reading unit shown in FIG. 63.

66 is a schematic plan view of a reading sensor of the page turning reading unit shown in FIG. 63.

67 is a schematic diagram showing an operation of the page storage unit shown in FIG. 35.

FIG. 68 is a schematic view showing the operation of the page storage means of another configuration of the page turning reading unit.

FIG. 69 is a schematic perspective view of a page storage unit having another configuration of the page turning reading unit.

70 is a schematic side view of the page storage means shown in FIG. 69.

71 is a schematic side view of the original page of the page storage means shown in FIG.

72 is a schematic view showing an operation mode of the page storage means shown in FIG. 69 at the time of page discharge.

FIG. 73 is a schematic perspective view of a page storage means of still another configuration of the page turning reading unit.

74 is a schematic side view of the page storage means shown in FIG. 73.

FIG. 75 is a schematic side view of an original page intrusion state of the page storage unit shown in FIG. 73.

FIG. 76 is a schematic diagram showing an operation mode of the page storage unit shown in FIG. 73 at the time of page discharge.

FIG. 77 is a schematic perspective view of a page storage means of still another configuration of the page turning reading unit.

78 is a schematic side view of the page storage unit shown in FIG. 77.

FIG. 79 is a schematic side view of the original page of the page storage unit shown in FIG. 77 in the invading state.

FIG. 80 is a schematic diagram showing an operation mode of the page storage unit shown in FIG. 77 when a page is discharged.

FIG. 81 is a schematic cross-sectional view of another reading sensor of the page turning reading unit.

FIG. 82 is a schematic cross-sectional view of still another reading sensor of the page turning reading unit.

FIG. 83 is a schematic cross-sectional view showing another configuration of the page turning reading unit in the MFDS.

FIG. 84 is a schematic cross-sectional view showing still another configuration of the page-turning reading unit in the MFDS.

85 is a partial cross-sectional view of a page pressing belt used in the page turning reading unit shown in FIG. 84.

FIG. 86 is a schematic cross-sectional view showing still another configuration of the page turning reading unit in the MFDS.

87 is a schematic cross-sectional view showing the configuration when the page turning reading unit shown in FIG. 86 is assembled.

FIG. 88 is a schematic cross-sectional view of the home position position of the page turning reading unit in the MFDS.

FIG. 89 is a schematic diagram when setting a book original of the MFDS.

FIG. 90 is a schematic diagram showing a configuration of a book document positioning member of the MFDS.

FIG. 91 is a schematic diagram showing another configuration of the book document positioning member.

FIG. 92 is a schematic view showing still another configuration of the book document positioning member.

93 is a schematic view showing an operation mode of the book document positioning member shown in FIG. 92. FIG.

FIG. 94 is a schematic view showing still another configuration of the book document positioning member.

FIG. 95 is a schematic view showing still another configuration of the book document positioning member.

FIG. 96 is a schematic view showing still another configuration of the book document positioning member.

97 is a schematic view showing an operation mode of the book document positioning member shown in FIG. 96.

FIG. 98 is a schematic view showing a sheet document set state of the book document positioning member shown in FIG. 96.

FIG. 99 is a schematic diagram showing a configuration of a document set guide for a book document of the MFDS.

100 is a schematic perspective view showing the structure of the document set guide shown in FIG. 99. FIG.

101 is a schematic diagram showing a usage state of the document set guide shown in FIG. 99. FIG.

102 is a schematic cross-sectional view at a turning point of the page turning reading unit in the MFDS. FIG.

FIG. 103 is a flowchart showing an operation at a turning point of the page turning reading unit in the MFDS.

FIG. 104 is a schematic sectional view of an example of the present invention.

FIG. 105 is an operation mode diagram of the embodiment of the present invention.

FIG. 106 is another operation mode diagram of the embodiment of the present invention.

FIG. 107 is a diagram showing read data at the end of a book document according to another embodiment of the present invention.

FIG. 108 is a transition diagram of a left end portion of a book document used in still another embodiment of the present invention.

[Explanation of Codes] 1-Page Turning Reading Unit 5 Unit Side Plate 6,7,8 Belt Support Roller 13 Reading Sensor 42 Drive Motor 83 Belt Tension Fixed Roller 84,85 Belt Support Roller 86 Tension Spring 87 Belt Tension Movable Roller 88 One-way clutch 100 Document placing table 200 Page pressing belt 300 Detour forming means 400 Reading means

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kazushige Taguchi Kagoshi Taguchi 1-3-3 Nakamagome, Ota-ku, Tokyo, Ricoh Co., Ltd. (72) Masaru Shiina 1-3-3 Nakamagome, Ota-ku, Tokyo Issue / Stock Company Ricoh

Claims (7)

[Claims] 1. An original placing table on which an opened book original is placed, an original scanning means for scanning the book original opened and placed on the original placing surface of the original placing table, and the original. When the scanning means scans and moves, the reading means is supported so as to come in close contact with the original surface of the book original and reads the original image, and the reading means is retracted from the reading position for exposing and scanning the original image and the original surface. Moving means for moving to the retreat position, and the moving means for retracting the reading means to the retreat position when the document scanning means rides on the book document and moving to the reading position after riding on the book document. A reading device for a book document, comprising: a control unit for controlling. 2. The movement of the reading means to the reading position is carried out at a position where the scanning means has moved by a predetermined amount from the scanning start reference position, and the scanning means has a predetermined movement from the scanning start reference position. 2. The book document reading device according to claim 1, wherein the amount is variable according to the document page position of the book document. 3. The moving of the reading means to the reading position is executed at the time of detecting the document surface of the document surface detecting means for detecting the document surface of the book document.
A device for reading the described book manuscript. 4. A document placing table on which a book document that has been opened is placed, document scanning means for scanning the book document that is opened and placed on the document placing surface of the document placing table, and this document. When the scanning means scans and moves, the reading means is supported so as to come in close contact with the original surface of the book original and reads the original image, and the reading means is retracted from the reading position for exposing and scanning the original image and the original surface. And a control means for controlling the moving means so as to retract the reading means to the retracted position when the document scanning means passes through the central binding portion of the book document. A book manuscript reading device characterized by the above. 5. The movement of the reading means to the retracted position is executed at a position where the scanning means has moved by a predetermined amount from the scanning start reference position, and the scanning means has a predetermined movement from the scanning start reference position. 5. The book document reading apparatus according to claim 4, wherein the amount is variable according to the document page position of the book document. 6. The book according to claim 4, wherein the movement of the reading means to the retracted position is executed at a position where the scanning means is moved by a predetermined amount from a reading start position of the reading means. Document reading device. 7. The step of moving the reading means to the retracted position is detected by a step detecting means provided on the lower surface of the upstream side of the scanning means in the scanning direction to detect a step higher than a predetermined value on the document surface. The book document reading device according to claim 4, wherein the book document reading device is executed by the following method.