WO2017061044A1

WO2017061044A1 - Bound media placement device and bound media reading device

Info

Publication number: WO2017061044A1
Application number: PCT/JP2015/078808
Authority: WO
Inventors: 英之奥村; 暁岩山
Original assignee: 株式会社Pfu
Priority date: 2015-10-09
Filing date: 2015-10-09
Publication date: 2017-04-13
Also published as: JP6503469B2; JPWO2017061044A1

Abstract

The present invention is provided with the following: a placement stand (11) on which bound media (5A) is placed with a spread surface (5a) thereof facing upwards; a holding unit (12A) for holding a binding part (5b) of the bound media (5A) which has been placed on the placement stand (11); and a moving unit (13) that causes the holding unit (12A) which is holding the binding part (5b) to rotate about an axis which is parallel to the extending direction of the binding part (5b), and that maintains a rotated state.

Description

Binding medium placing apparatus and binding medium reading apparatus

The present invention relates to a binding medium placing device and a binding medium reading device.

A binding medium such as a book has a binding portion in which a plurality of pages are bound together, and when the binding medium is opened, a binding portion area (hereinafter referred to as a spread surface area) corresponding to the binding portion on the spread surface. Deflection occurs in the valley portion of the so-called throat portion. When such a spread surface is read as a read image, the spread surface is faced upward, the binding medium is placed on the mounting table, and the entire spread surface is pressed using a light-transmitting presser. The deflection of the binding part of the surface is corrected.

Further, as a related technique, there is known a technique for suppressing the deflection generated in the binding portion on the spread surface by inserting the binding portion between a set of mounting surfaces on which both sides in the spread direction of the spread surface are mounted. It has been.

Japanese Patent Laid-Open No. 11-298688

FIG. 35A is a side view showing a state in which the spread surface of the binding medium is opened. FIG. 35B is a side view showing a state in which the spread surface of the binding medium is pressed using a conventional presser.

As shown in FIG. 35A, when the opened binding medium 105 is placed on the mounting table 111, the binding portion 105b on the spread surface 105a of the binding medium 105 is curved in a cross section orthogonal to the extending direction of the binding portion 105b. Deflection occurs. In order to correct such deflection of the binding portion 105b, as shown in FIG. 35B, when the spread surface 105a is pressed using a flat presser 112, the vicinity of the valley of the binding portion 105b of the spread surface 105a where the deflection occurs. Is crushed. At this time, an overlapping portion 113 in which the binding portion 105b of the spread surface 105a partially overlaps may be generated, and there is a problem that information on the entire spread surface 105a cannot be read properly.

The disclosed technology has been made in view of the above, and an object thereof is to provide a binding medium placing device and a binding medium reading device capable of correcting the deflection of the spread surface.

One aspect of the binding medium placement device disclosed in the present application holds a placement base on which the binding medium is placed with the facing surface facing upward, and a binding portion of the binding medium placed on the placement base. And a movable portion that rotates the holding portion that holds the binding portion around an axis parallel to the extending direction of the binding portion and maintains the rotating state.

According to one aspect of the binding medium placing device disclosed in the present application, it is possible to correct the deflection of the spread surface.

FIG. 1A is a perspective view illustrating a case where a flat mounting table is used in the binding medium reading device according to the first exemplary embodiment. FIG. 1B is a perspective view illustrating a case where a V-shaped mounting table is used in the binding medium reading device according to the first exemplary embodiment. FIG. 2 is a block diagram illustrating the binding medium reading device according to the first embodiment. FIG. 3 is a functional block diagram illustrating the binding medium reading device according to the first embodiment. FIG. 4 is a side view illustrating an example of a binding portion of a binding medium that is read by using the binding medium reading device according to the first exemplary embodiment. FIG. 5 is a side view illustrating another example of the binding portion of the binding medium that is read by using the binding medium reader according to the first embodiment. FIG. 6 is a perspective view illustrating the inside of the binding medium placing device included in the binding medium reading device according to the first exemplary embodiment. FIG. 7 is a perspective view illustrating the inside of the binding medium placing device included in the binding medium reading device according to the first exemplary embodiment. FIG. 8 is a perspective view illustrating the inside of the binding medium placing device included in the binding medium reading device according to the first exemplary embodiment. FIG. 9 is a perspective view illustrating the inside of the binding medium placing device included in the binding medium reading device according to the first exemplary embodiment. FIG. 10 is a perspective view for explaining a state of reading the binding medium placed on the flat placement surface with respect to the binding medium reading device of the first embodiment. FIG. 11A is a plan view for explaining a state in which the binding medium reading device according to the first embodiment reads a binding medium placed on a flat placement surface. FIG. 11B is a side view for explaining a state of reading the binding medium placed on the flat placement surface in the binding medium reading device of the first embodiment. FIG. 12 is a perspective view for explaining a state of reading the binding medium placed on the V-shaped placement surface in the binding medium reading device of the first embodiment. FIG. 13A is a plan view for explaining a state in which the binding medium placed on the V-shaped placement surface is read in the binding medium reading device according to the first embodiment. FIG. 13B is a side view for explaining a state of reading the binding medium placed on the V-shaped placement surface in the binding medium reading device of the first embodiment. FIG. 14A is a schematic diagram for explaining a focal position of a reading unit included in the binding medium reading device according to the first embodiment. FIG. 14B is a diagram illustrating the relationship between the MTF and the focal position of the reading unit included in the binding medium reading device according to the first embodiment. FIG. 15 is a schematic diagram for explaining scanning of a reading unit included in the binding medium reading device according to the first embodiment. FIG. 16 is a schematic diagram for explaining a height detection unit included in the binding medium reading device according to the first embodiment. FIG. 17 is a flowchart for explaining the detection process of the height detection unit included in the binding medium reading device according to the first embodiment. FIG. 18 is a schematic diagram illustrating a change in the height of the spread surface of the binding medium placed on the placement surface in the first embodiment. FIG. 19A is a perspective view illustrating a height difference between the center of the valley of the binding portion and an end portion in the spread direction and an angle formed by the valley of the binding portion on the spread surface of the binding medium. FIG. 19B is a schematic diagram illustrating a difference in height between the center of the valley of the binding portion and an end portion in the spread direction, and an angle formed by the valley of the binding portion on the spread surface of the binding medium. FIG. 20 is a flowchart for explaining a process of calculating the height difference of the spread surface of the binding medium in the first embodiment. FIG. 21 is a schematic diagram illustrating the deflection of the binding portion on the spread surface of the binding medium using a beam deflection model. FIG. 22 is a diagram illustrating the relationship between the height difference of the spread surface of the binding medium and the deflection angle of the binding portion in the first embodiment. FIG. 23A is a schematic diagram illustrating a state in which the binding medium is placed on a flat placement surface in the first embodiment. FIG. 23B is a schematic diagram for explaining the operation of correcting the deflection of the binding medium placed on the flat placement surface in the first embodiment. FIG. 23C is a schematic diagram for explaining an operation of correcting the deflection of the binding medium placed on the flat placement surface in the first embodiment. FIG. 24A is a schematic diagram illustrating a state in which the binding medium is placed on the V-shaped placement surface in the first embodiment. FIG. 24B is a schematic diagram for explaining the operation of correcting the deflection of the binding medium placed on the V-shaped placement surface in the first embodiment. FIG. 25A is a schematic diagram illustrating a state in which the binding medium is placed on the V-shaped placement surface in the first embodiment. FIG. 25B is a schematic diagram for explaining an operation of correcting the deflection of the binding medium placed on the V-shaped placement surface in the first embodiment. FIG. 26 is a flowchart for explaining an operation when the binding medium is read by using the binding medium reading device according to the first embodiment. FIG. 27 is a flowchart for explaining the binding medium reading operation of the binding medium reading device according to the first exemplary embodiment. FIG. 28 is a flowchart for explaining a correction operation on both sides of the spread surface of the binding medium in the binding medium reading device according to the first exemplary embodiment. FIG. 29 is a flowchart for explaining a double-sided reading operation on the spread surface of the binding medium in the binding medium reading device according to the first exemplary embodiment. FIG. 30 is a flowchart for explaining a single-side correction operation on the spread surface of the binding medium in the binding medium reading device according to the first exemplary embodiment. FIG. 31 is a flowchart for explaining a single-sided reading operation on the spread surface of the binding medium in the binding medium reading device according to the first exemplary embodiment. FIG. 32 is a perspective view illustrating a binding medium placing device included in the binding medium reading device according to the second embodiment. FIG. 33 is a perspective view illustrating a binding medium placing device included in the binding medium reading device according to the third embodiment. FIG. 34 is a flowchart for explaining the binding medium reading operation of the binding medium placing apparatus according to the third embodiment. FIG. 35A is a side view showing a state in which the spread surface of the binding medium is opened. FIG. 35B is a side view showing a state in which the spread surface of the binding medium is pressed using a conventional presser.

Hereinafter, embodiments of the binding medium placing device and the binding medium reading device disclosed in the present application will be described in detail with reference to the drawings. Note that the following embodiments do not limit the binding medium placement device and the binding medium reading device disclosed in the present application.

(Configuration of binding medium reader)
FIG. 1A is a perspective view illustrating a case where a flat mounting table is used in the binding medium reading device according to the first exemplary embodiment. FIG. 1B is a perspective view illustrating a case where a V-shaped mounting table is used in the binding medium reading device according to the first exemplary embodiment. FIG. 2 is a block diagram illustrating the binding medium reading device according to the first embodiment. FIG. 3 is a functional block diagram illustrating the binding medium reading device according to the first embodiment.

As shown in FIGS. 1A and 1B, the binding medium reading device 1 according to the first embodiment includes a binding medium placement device 6 on which the binding medium 5 is placed with the spread surface 5a facing upward, and a binding medium placement. A pair of reading

units

7L and 7R that read the spread surface 5a of the binding medium 5 placed on the placement device 6;

The binding medium reading device 1 according to the first embodiment has a mounting table 11F having a flat mounting surface 11a and a mounting surface having a V-shaped mounting surface 11a according to the thickness of the binding medium 5 to be read. The stage 11V can be replaced. For example, when the binding medium 5 having a large number of pages and a large thickness is read, the V-shaped mounting table 11V is selected and used in order to suppress the deflection generated on the spread surface 5a. Hereinafter, when the mounting table 11 is simply referred to, it includes the mounting tables 11F and 11V.

As illustrated in FIG. 2, the binding medium placing device 6 according to the first exemplary embodiment includes placement tables 11F and 11V on which the binding medium 5 is placed, a holding unit 12 that holds the binding part 5b of the binding medium 5, and a holding unit. And a movable portion 13 that rotates the portion 12 and maintains the rotation state. The movable unit 13 includes a rotation mechanism 16 that rotates the holding unit 12 and an elevating mechanism 17 that raises and lowers the holding unit 12.

The

reading units

7L and 7R include an illumination unit 21 that illuminates the binding medium 5, an image sensor 22 that images the spread surface 5a of the binding medium 5, and a carrier for adjusting the optical path length of the optical axis of the image sensor 22. 24 and a rotating mirror 25 for moving the optical axis of the image sensor 22 along the spread surface 5a. The

reading units

7L and 7R include a height detection unit 27 that detects the height of the spread surface 5a of the binding medium 5.

Further, as shown in FIG. 2, the binding medium reading device 1 includes a control unit 8 for controlling the binding medium placing device 6 and the

reading units

7L and 7R. The control unit 8 includes an illumination control unit 31 that controls the illumination unit 21, an image reading control unit 32 that controls the image sensor 22, and a height detection control unit 33 that controls the height detection unit 27. In addition, the control unit 8 includes a device control unit 34 such as a CPU for controlling the entire binding medium reading device 1, a temporary storage unit 35 such as a memory for storing various data, a PC (personal computer) as an external device, A communication unit 36 for communicating with a network or the like, and an image processing unit 37 for processing a read image read by the

reading units

7L and 7R. Further, the control unit 8 is a motor control unit that controls the rotating mirror 25 and the carrier 24 included in the

reading units

7L and 7R, and the rotating mechanism 16 and the lifting mechanism 17 of the movable unit 13 included in the binding medium placing device 6, respectively. 38.

As shown in FIG. 3, the binding medium reading device 1 has a function for reading the reading surface 5 a of the binding medium 5, and whether or not the height detection unit 27 described above and the deflection generated on the spread surface 5 a need to be corrected. And a deflection determination unit 28 for determining In addition, the binding medium reading device 1 spreads by moving the holding unit 12 with the moving amount calculating unit 29 that calculates the moving amount (the moving amount of the height and the rotation angle) for moving the holding unit 12 and the movable unit 13. It has a deflection correcting unit 30 that corrects the deflection of the surface 5a, and reading

units

7L and 7R that read the spread surface 5a as a read image.

The height detector 27 detects the deflection of the spread surface 5a with respect to the height direction intersecting the spread surface 5a. Based on the result detected by the height detection unit 27, the deflection determination unit 28 determines whether the entire double-sided or single-sided spread surface 5a is located within a predetermined range in the height direction (readable range R described later). Determine whether or not. The deflection determination unit 28 and the movement amount calculation unit 29 correspond to the control unit 8 described above. Further, the deflection correcting unit 30 corresponds to the movable unit 13 that moves the holding unit 12.

Here, the binding medium 5 applied to the binding medium reading device 1 according to the first embodiment will be described. FIG. 4 is a side view illustrating an example of the binding portion 5b of the binding medium 5 that is read by using the binding medium reading device 1 according to the first embodiment. FIG. 5 is a side view illustrating another example of the binding unit 5b of the binding medium 5 read by using the binding medium reading device 1 according to the first embodiment.

As shown in FIG. 4, the binding medium 5 </ b> A is a so-called tie-bound line binding in which the binding portion 5 b is formed by bundling a portion in which one side of a plurality of pages is overlapped in the thickness direction of the page. Yes. When the binding medium 5A is placed on a horizontal placement surface, the height of the binding portion 5b with respect to the vertical direction is relatively high.

Further, as shown in FIG. 5, the binding medium 5B is a Western-style binding book whose binding portion 5b is a so-called Ajiro binding, and the end surfaces on one side of a plurality of pages are connected by an adhesive or the like along the thickness direction of the pages. Is formed. When the binding medium 5B is placed on a horizontal placement surface, the height of the binding portion 5b with respect to the vertical direction is relatively low. Hereinafter, the simple binding medium 5 includes the

binding media

5A and 5B.

(Configuration of binding medium placing device)
6 to 9 are perspective views illustrating the inside of the binding medium placing device 6 included in the binding medium reading device 1 according to the first embodiment. 6 and 7 show a configuration having a holding portion 12 that holds the binding portion 5b of the binding medium 5A shown in FIG. 8 and 9 show a configuration having the holding unit 12 that holds the binding portion 5b of the binding medium 5B shown in FIG. In FIG. 6 to FIG. 9, the same constituent members will be described with the same reference numerals.

As shown in FIGS. 6 and 7, the binding medium placement device 6 according to the first embodiment has a set of placement surfaces 11 a on which the binding medium 5 is placed with the spread surface 5 a facing upward. The mounting table 11 and a holding unit 12A for holding the binding unit 5b of the binding medium 5A mounted on the mounting table 11 are provided. Further, the binding medium placing device 6 includes a movable unit 13 that rotates the holding unit 12A that holds the binding unit 5b about an axis parallel to the extending direction of the binding unit 5b and maintains the rotation state.

As shown in FIG. 7, the mounting surface 11a of the mounting table 11 is in a spread direction perpendicular to the extending direction of the binding portion 5b so that both sides of the spread surface 5a of the binding medium 5 are respectively mounted. They are arranged side by side and are fixed to a base member (not shown). The mounting surface 11a of the mounting table 11 is located on the same surface having the same height in the vertical direction.

The holding unit 12A is disposed between the mounting surfaces 11a of the mounting table 11, and includes a set of clamp members 41 that hold the binding unit 5b of the binding medium 5A mounted on the mounting table 11, and a set of And a clamp mechanism 42 that moves in a direction in which the clamp member 41 approaches and separates. The pair of clamp members 41 is provided so as to be movable in the A direction which is the thickness direction of the binding portion 5b of the binding medium 5A, and holds the binding portion 5b with respect to the thickness direction. The clamp mechanism 42 has operation members such as a thumbscrew and a handle, for example, and is configured to be able to adjust the facing distance between the pair of clamp members 41 by rotating the operation member. The holding portion 12A can appropriately hold the binding portion 5b of the binding medium 5A described above, and can suppress damage to the binding portion 5b.

The movable portion 13 includes a rotation mechanism 16 that rotates the holding portion 12A around an axis parallel to the extending direction of the binding portion 5b of the binding medium 5A placed on the placement table 11, and the holding portion 12A in the vertical direction. And an elevating mechanism 17 for elevating and lowering.

The rotation mechanism 16 includes a support member 16b that supports a pair of clamp members 41 so as to be rotatable in the C direction via the rotation shaft 16a, a pulley 16c fixed to the rotation shaft 16a, and a drive having a pinion 16d. It has a motor 16e, and a drive belt 16f spanned around a pulley 16c and a pinion 16d. The rotation mechanism 16 rotates the pulley 16c via the drive belt 16f by rotating the pinion 16d of the drive motor 16e. The rotation mechanism 16 rotates the pulley 16c to rotate the pair of clamp members 41 around the rotation shaft 16a.

Further, the position of the rotation shaft 16a by which the rotation mechanism 16 rotates the holding portion 12A is arranged at the center of the holding portion 12A in a plane orthogonal to the extending direction of the binding portion 5b, for example. The position of the rotation shaft 16a is not limited to the center of the holding portion 12A, and may be arranged at the center of the valley of the binding portion 5b on the spread surface 5a.

The elevating mechanism 17 supports the holding portion 12A, and is provided with a plurality of link members 17a provided so as to be expandable and contractable in the D direction which is the height direction, a slide member 17b connected to the plurality of link members 17a, and a slide It has a feed shaft 17c that moves the member 17b along the axial direction, and a drive motor 17d that rotates the feed shaft 17c. The elevating mechanism 17 moves the slide member 17b along the axial direction of the feed shaft 17c by rotating the feed shaft 17c by the drive motor 17d. The elevating mechanism 17 moves the slide member 17b along the feed shaft 17c, thereby expanding and contracting the plurality of link members 17a and elevating the holding portion 12A with respect to the D direction. As the elevating mechanism 17, for example, a pantograph jack may be used.

Next, when the binding medium 5B shown in FIG. 5 is held, the binding medium placing device 6 extends in the extending direction of the binding part 5b as shown in FIGS. 8 and 9 instead of the holding part 12A described above. The holding part 12B pressed in the extending direction from both sides of the binding part 5b is provided. The holding portion 12B is disposed between the placement surfaces 11a of the placement table 11, and includes a set of clamp members 43 that hold the binding portion 5b and a clamp that moves in a direction in which the set of clamp members 43 are moved closer to and away from each other. And a mechanism 44.

The pair of clamp members 43 are provided so as to be movable in the B direction, which is the extending direction of the binding portion 5b of the binding medium 5B, and sandwich the binding portion 5b from both sides in the extending direction of the binding portion 5b. Hold. The clamp mechanism 44 has an operation member such as a thumbscrew or a handle, for example, and is configured such that the facing distance between the pair of clamp members 43 can be adjusted by rotating the operation member. The holding unit 12B can appropriately hold the binding unit 5b of the binding medium 5B described above. Hereinafter, when simply referred to as the holding unit 12, it includes the holding units 12 </ b> A and 12 </ b> B.

(Configuration of reading unit)
10, FIG. 11A and FIG. 11B are diagrams for explaining a state of reading the binding medium 5 placed on the flat placement surface 11a in the binding medium reader 1 of the first embodiment. Is a perspective view, FIG. 11A is a plan view, and FIG. 11B is a side view.

As shown in FIG. 10, the

reading units

7L and 7R are supported by a stand member 45 fixed to the binding medium placing device 6, and are provided so as to be rotatable around a rotation axis X1 parallel to the horizontal direction. ing. When the binding medium reading device 1 uses a flat mounting table 11F, the pair of reading

units

7L and 7R have the optical axes parallel to each other and face the pair of mounting surfaces 11a. At this time, as shown in FIGS. 11A and 11B, the reading area 46L of the reading unit 7L and the reading area 46R of the reading unit 7R are spread on the mounting surfaces 11a of the flat mounting table 11F. Are arranged so as to partially overlap each other at the binding portion 5b.

12, FIG. 13A and FIG. 13B are diagrams for explaining a state of reading the binding medium 5 placed on the V-shaped placement surface 11a in the binding medium reader 1 of the first embodiment. Is a perspective view, FIG. 13A is a plan view, and FIG. 13B is a side view.

As shown in FIG. 12, when the binding medium reading device 1 uses a V-shaped mounting table 11V, the set of reading

units

7L and 7R is rotated around the rotation axis X1, respectively. The

reading units

7L and 7R are opposed to a set of mounting surfaces 11a while their optical axes intersect each other. At this time, as shown in FIGS. 13A and 13B, the reading area 46L of the reading unit 7L and the reading area 46R of the reading unit 7R are spread on each mounting surface 11a of the V-shaped mounting table 11V. It arrange | positions so that it may overlap partially with the binding part 5b of 5a.

FIG. 14A is a schematic diagram for explaining the focal positions of the

reading units

7L and 7R included in the binding medium reading device 1 according to the first embodiment. FIG. 14B is a diagram illustrating a relationship between the focal positions of the

reading units

7L and 7R included in the binding medium reading device 1 according to the first embodiment and MTF (Modulation Transfer Function). In FIG. 14B, the vertical axis indicates the MTF, and the horizontal axis indicates the position on the optical path. FIG. 15 is a schematic diagram for explaining scanning of the

reading units

7L and 7R included in the binding medium reading device 1 according to the first embodiment.

As shown in FIG. 14A, the

reading units

7L and 7R are in focus at a predetermined focal position on the optical path with respect to the lens 48 arranged on the optical axis of the image sensor 22, that is, obtain the maximum resolution. Can be captured. 14A and 14B, the image sensor 22 has a readable range (depth of field) R in a predetermined range in the optical axis direction centering on the focal position. For example, a line sensor is used as the image sensor 22.

Further, as shown in FIG. 15, the

reading units

7L and 7R move the carrier 24 arranged on the optical axis of the image sensor 22 along the optical axis direction, thereby moving the image sensor 22 to the spread surface 5a. The optical path length is changed, and a read image focused at the same magnification is taken. The carrier 24 has a pair of folding mirrors 49 a and 49 b that fold the optical axis, and makes the light reflected by the folding mirrors 49 a and 49 b enter the rotating mirror 25. The

reading units

7L and 7R rotate the rotating mirror 25 to scan the light reflected by the rotating mirror 25 along the spread surface 5a. Further, the optical path length of the

reading units

7L and 7R may be adjusted by changing the height of the placement surface 11a.

(Configuration of height detector)
FIG. 16 is a schematic diagram for explaining the height detection unit 27 included in the binding medium reading device 1 according to the first embodiment. FIG. 17 is a flowchart for explaining a detection process of the height detection unit 27 included in the binding medium reading device 1 according to the first embodiment.

In the first embodiment, each set of reading

units

7L and 7R has a height detection unit 27, but only one reading unit 7L (7R) has a height detection unit 27. Also good.

As the height detection unit 27 of the

reading units

7L and 7R, a so-called line laser sensor that measures the three-dimensional coordinates of the spread surface 5a is used. As shown in FIG. 16, the height detection unit 27 includes a line laser 27a that linearly irradiates laser light along the spread direction of the spread surface 5a, and a camera that images the laser light irradiated on the spread surface 5a. 27b. The height detection unit 27 is controlled by the height detection control unit 33 of the control unit 8.

As shown in FIG. 17, the height detection unit 27 detects the two-dimensional coordinates (u, v) of the laser light irradiated on the spread surface 5a based on the image captured by the camera 27b (step S01). . Subsequently, the height detection unit 27 acquires appropriate three-dimensional coordinate calculation parameters (a, b, c, d) from the data stored in advance in the height detection control unit 33. Then, the height detection unit 27 generates a camera model using a known laser beam plane equation and parameters (a, b, c, d) (step S02). Next, the height detection unit 27 calculates three-dimensional coordinates (X, Y, Z) based on the camera model, and the three-dimensional coordinates (u, v, w) of the laser light irradiated on the spread surface 5a. Is calculated (step S03). From the three-dimensional coordinates (u, v, w) of the laser light thus obtained, the height detection unit 27 detects the maximum height and the minimum height as the height of the spread surface 5a.

In Example 1, the shape of the spread surface 5a with respect to the spread direction is configured to be detected using two lines by the height detection unit 27 included in each of the pair of reading

units

7L and 7R. For example, it may be configured to detect using only one line or three or more lines. By increasing the number of lines for detecting the height, the accuracy of detecting the shape of the spread surface 5a can be increased. In the first embodiment, the height detection unit 27 detects a deflection in the height direction of the spread surface 5a using a line laser sensor. However, the other detection unit detects the deflection of the entire spread surface 5a by three-dimensional measurement. May be used.

FIG. 18 is a schematic diagram showing a change in the height of the spread surface 5a of the binding medium 5 placed on the placement surface 11a in the first embodiment. In FIG. 18, the vertical axis indicates the height of the spread surface 5a, and the horizontal axis indicates the position of the spread surface 5a in the spread direction. As shown in FIG. 18, the spread surface 5a of the binding medium 5 has the highest height in the vicinity of the valley of the binding portion 5b, and the height gradually decreases as it moves away from the binding portion 5b toward the end portion. There is a tendency. Then, when the interval between the maximum height and the minimum height of the spread surface 5a is included inside the readable range R of the

reading units

7L and 7R, the entire area of the spread surface 5a (or the entire area of one surface) is appropriately read. Is possible.

Therefore, the control unit 8 serving as the deflection determination unit 28 determines whether or not the entire area of the double-sided spread surface 5a or the entire area of one side is located within a predetermined readable range R (height range). As shown in FIG. 18, the control unit 8 determines that the deflection of the spread surface 5 a needs to be corrected when the entire area or one side of the spread surface 5 a is not located within the readable range R. In this case, the control unit 8 drives the movable unit 13 as the deflection correcting unit 30 to move the binding unit 5b held by the holding unit 12 to correct the deflection of the spread surface 5a. On the other hand, the control unit 8 determines that it is not necessary to correct the deflection of the spread surface 5a when both the entire surface or the entire one surface of the spread surface 5a is located within the readable range R, and the

reading units

7L and 7R. Read the spread surface 5a.

FIG. 19A is a perspective view showing the height difference between the center of the valley of the binding portion 5b and the end portion in the spread direction on the spread surface 5a of the binding medium 5, and the angle formed by the valley of the binding portion 5b. FIG. 19B is a schematic diagram illustrating a difference in height between the center of the valley of the binding portion 5b and the end portion in the spread direction on the spread surface 5a of the binding medium 5, and an angle formed by the valley of the binding portion 5b. In FIG. 19B, the vertical axis indicates the height of the spread surface 5a, and the horizontal axis indicates the position of the spread surface 5a in the spread direction. FIG. 20 is a flowchart for explaining processing for calculating the height difference of the spread surface 5a of the binding medium 5 in the first embodiment.

When the control unit 8 determines that the deflection of the spread surface 5a needs to be corrected, the control unit 8 as the movement amount calculation unit 29 calculates a movement amount by which the holding unit 12 is moved by the movable unit 13. As shown in FIG. 19A and FIG. 19B, in a plane orthogonal to the extending direction of the binding portion 5b, the difference in height between the center O of the valley of the binding portion 5b of the spread surface 5a and one end P in the spread direction of the spread surface 5a. (Hereinafter, referred to as a height difference of the spread surface 5a.) Is defined as H1. Further, in the valley of the binding portion 5b of the spread surface 5a, the angle formed by the inner wall of the valley of the binding portion 5b with respect to a vertical line (vertical direction) passing through the center O of the valley (hereinafter, the angle formed by the valley of the binding portion 5b). Is referred to as θ1. Therefore, as shown in FIG. 19B, the angle formed by the valley of the binding portion 5b on one side of the spread surface 5a is θ1, and the angle formed by the valley of the binding portion 5b on the other side of the spread surface 5a. θ2.

As shown in FIG. 20, the control unit 8 determines the change point in the center of the spread surface 5a based on the height of the spread surface 5a detected by the height detection unit 27, that is, the valley of the binding portion 5b of the spread surface 5a. The center O is detected (step S04). Subsequently, the control unit 8 detects the amount of change in height (mountain height) that changes from the center O of the valley of the binding portion 5b toward the spread direction of the spread surface 5a (left and right of the spread surface 5a). Then, the angle θ1 formed by the valley of the binding portion 5b is calculated (step S05). Next, in the spread direction, the control unit 8 reduces the amount of change in height that changes from the placement surface 11a of the placement table 11 toward the valley of the binding portion 5b, that is, in the spread direction of the spread surface 5a. One end P is detected (step S06). Then, the control unit 8 calculates the height difference H1 between the one end P in the spread direction of the spread surface 5a and the center O of the valley of the binding portion 5b of the spread surface 5a (step S07).

(Principle of deflection of facing surface deflection)
Here, the principle of correcting the deflection of the spread surface 5a using the angle θ1 formed by the valley of the binding portion 5b calculated by the control unit 8 and the height difference H1 of the spread surface 5a will be described. FIG. 21 is a schematic diagram showing the deflection of the binding portion 5b on the spread surface 5a of the binding medium 5 using a beam deflection model. FIG. 22 is a diagram illustrating the relationship between the height difference of the spread surface 5a of the binding medium 5 and the deflection angle of the binding portion 5b in the first embodiment.

In FIG. 21, the vertical axis indicates the height, and the horizontal axis indicates the position of the spread surface 5a with respect to the spread direction. Here, the mass of the medium (page) is m (g / mm), the Young's modulus is E (Pa), the length of the medium with respect to the spread direction is L (mm), and the inner wall of the valley of the binding portion 5b on the spread surface 5a An angle formed by the horizontal plane (mounting surface 11a) (hereinafter referred to as a deflection angle of the binding portion 5b) is defined as θ. When the height of the medium in which the deflection occurs with respect to the center O of the valley of the binding portion 5b (hereinafter referred to as the height difference of the spread surface 5a) is H (mm),
H = Lsin θ− (mgL ⁴ cos ² θ / 2EL) Equation 1
It becomes.

When the relationship between the height difference H of the spread surface 5a and the deflection angle θ of the binding portion 5b was obtained using Equation 1, the relationship shown in FIG. 22 was obtained. In FIG. 22, the vertical axis indicates the height difference H (mm) of the spread surface 5a, and the horizontal axis indicates the deflection angle θ (degrees) of the binding portion 5b. As shown in FIG. 22, by reducing the deflection angle θ of the binding portion 5b, the height difference H of the spread surface 5a is reduced, and the deflection of the spread surface 5a is corrected.

In short, by moving the binding portion 5b so that the height difference H of the spread surface 5a is small and by rotating the binding portion 5b so that the deflection angle θ of the binding portion 5b is small, the spread surface 5a It becomes possible to correct the deflection. Here, the deflection angle θ of the binding portion 5b is expressed as θ = 90 ° −θ1 using the angle θ1 formed by the valley of the binding portion 5b described above.

First, the control unit 8 corrects the deflection of the spread surface 5a by moving the height of the holding unit 12 by the movable unit 13 so that the height difference H1 of the spread surface 5a becomes “0”, and the deflection is reduced. Make it smaller. Therefore, the control unit 8 is configured so that the center O of the valley of the binding portion 5b is located on the same plane in the vertical direction as the one end P in the spread direction of the spread surface 5a, that is, at the same height. The holding unit 12 is moved by the elevating mechanism 17 of the movable unit 13.

Next, the control unit 8 rotates the holding unit 12 in a rotation direction in which the inner wall of the valley of the binding unit 5b is brought close to a horizontal plane so that the deflection angle θ of the binding unit 5b becomes small, thereby the spread surface 5a. Correct the deflection and reduce the deflection. Therefore, the control unit 8 rotates the holding unit 12 by the rotation mechanism 16 of the movable unit 13 by the deflection angle θ (= 90 ° −θ1) of the binding unit 5b.

When reading the spread surface 5a one side at a time, the height of the holding portion 12 is moved so that the height difference H1 of the spread surface 5a is “0” for each side of the spread surface 5a, and the binding portion The holding portion 12 is rotated so that the deflection angle θ of 5b becomes “0”.

When reading both sides of the spread surface 5a at the same time, it is necessary to position both sides of the spread surface 5a within the readable range R, and correct the deflection of both sides of the spread surface 5a at the same time. Here, the total angle (θ1 + θ2) of the angle θ1 formed by the valley of the binding portion 5b on one side of the spread surface 5a and the angle θ2 formed by the valley of the binding portion 5b on the other side is the binding portion 5b. The angle formed by the whole valley. At this time, it is assumed that θ1> θ2.

The straight line passing through half of the angle (θ1 + θ2) formed by the entire valley of the binding portion 5b is the center line of the angle formed by the entire valley, and the angle θ3 formed by the center line with respect to the vertical direction is the entire valley of the binding portion 5b. Is obtained by subtracting the angle θ2 formed by the valley of the relatively small binding portion 5b from ½ of the angle (θ1 + θ2) formed by. That is, the angle θ3 formed by the center line of the angle (θ1 + θ2) formed by the entire valley of the binding portion 5b with respect to the vertical direction is calculated by θ3 = {(θ1 + θ2) / 2} −θ2. Therefore, the control part 8 rotates the holding | maintenance part 12 only by angle (theta) 3 by the movable part 13, respectively, and the deflection | deviation of both surfaces of the facing surface 5a is each corrected.

In other words, by turning the holding portion 12 by an angle θ3 so that the center line of the angle (θ1 + θ2) formed by the entire valley of the binding portion 5b is parallel to the vertical direction, the deflection of both sides of the spread surface 5a is Each is corrected to some extent. That is, the deflection on both sides is corrected so that correcting the deflection on one side of the spread surface 5a does not have the effect of increasing the deflection on the other side.

(Correction operation of the binding medium placement device)
FIG. 23A is a schematic diagram illustrating a state in which the binding medium 5 is placed on the flat placement surface 11a in the first embodiment. FIG. 23B and FIG. 23C are schematic diagrams for explaining an operation of correcting the deflection of the binding medium 5 placed on the flat placement surface 11a in the first embodiment. Here, the case where the deflection of one side of the spread surface 5a is corrected will be described.

As shown in FIG. 23A, in the binding medium 5 placed on the flat placement surface 11a, the binding portion 5b on the spread surface 5a is bent. In FIG. 23A, when the deflection generated on the right side of the spread surface 5a is corrected, as shown in FIG. 23B, the holding portion 12 is rotated to the right side, which is one side of correcting the deflection, to thereby spread the surface 5a. The deflection generated on one side of the right side is corrected and the deflection is reduced. Further, in FIG. 23A, when the deflection generated on the left side of the spread surface 5a is corrected, as shown in FIG. 23C, the holding unit 12 is rotated to the left side, which is the one side for correcting the deflection, to spread the page. The deflection generated on the left side of the surface 5a is corrected, and the deflection is reduced.

FIG. 24A is a schematic diagram illustrating a state where the binding medium 5 is placed on the V-shaped placement surface 11a in the first embodiment. FIG. 24B is a schematic diagram for explaining an operation of correcting the deflection of the binding medium 5 placed on the V-shaped placement surface 11a in the first embodiment.

As shown in FIG. 24A, the binding medium 5 placed on the V-shaped placement surface 11a is bent at the binding portion 5b on the spread surface 5a. As shown in FIG. 24B, the deflection generated on both sides of the spread surface 5 a is corrected by lowering the holding unit 12 by the lifting mechanism 17 of the movable unit 13. By moving the height of the holding portion 12 in this way, it is possible to efficiently correct the deflection on both sides of the spread surface 5a.

FIG. 25A is a schematic diagram illustrating a state in which the binding medium 5 is placed on the V-shaped placement surface 11a in the first embodiment. FIG. 25B is a schematic diagram for explaining an operation of correcting the deflection of the binding medium 5 placed on the V-shaped placement surface 11a in the first embodiment.

Further, as shown in FIG. 25A, the binding medium 5 placed on the V-shaped placement surface 11a is bent at the binding portion 5b on the spread surface 5a. In FIG. 25A, when the deflection generated on the left side of the spread surface 5a is corrected, as shown in FIG. 25B, the holding unit 12 is rotated to the left side, which is one side of correcting the deflection, to thereby spread the surface 5a. The deflection generated on one side of the left side is corrected, and the deflection is reduced.

As described above, the deflection generated in the binding portion 5b of the spread surface 5a can be corrected by moving the binding portion 5b without pressing the spread surface 5a. Moreover, when correcting the deflection of the spread surface 5a, the deflection of the binding portion 5b of the spread surface 5a is effectively corrected by correcting each side. Therefore, the

reading units

7L and 7R can easily read both sides of the spread surface 5a by reading the spread surface 5a one by one. In many cases, the binding medium 5 placed on the flat placement surface 11a can easily read the vicinity of the valley of the binding portion 5b on the spread surface 5a.

However, it is possible to simultaneously correct the deflection generated on both sides of the spread surface 5a. When the deflection generated on both sides of the spread surface 5a is relatively small, it is effective to correct the deflection on both sides simultaneously. However, as described above, the deflection is corrected compared to the case of correcting the deflection on each side. The degree to which it is done becomes small. Further, when correcting the deflection of both sides of the spread surface 5a at the same time, both sides of the spread surface 5a can be read, so that the spread surface 5a can be read efficiently.

(Reading operation of the binding medium reader)
FIG. 26 is a flowchart for explaining an operation when the binding medium 5 is read by using the binding medium reading device 1 according to the first embodiment. FIG. 27 is a flowchart for explaining the reading operation of the binding medium 5 in the binding medium reading device 1 according to the first embodiment.

26, the binding part 5b of the binding medium 5 read by the binding medium reading device 1 is fixed to the holding part 12 (step S1). Subsequently, the binding medium 5 is placed on the placement surface 11a of the placement table 11 with the spread surface 5a facing upward, and a page to be read is opened (step S2). Then, by pressing the scan button (step S3), the binding medium reading device 1 performs a reading operation for capturing the spread surface 5a of the binding medium 5 as a read image by the pair of reading

units

7L and 7R (step S4). ).

The reading operation in step S4 in FIG. 26 will be specifically described. As shown in FIG. 27, the height detection unit 27 detects the height of the spread surface 5a of the binding medium 5 (step S11). Based on the height of the spread surface 5a detected by the height detection unit 27, the control unit 8 as the deflection determination unit 28 starts determining whether or not to correct the deflection of the spread surface 5a (step S12). At this time, the control unit 8 determines whether or not to correct the deflection based on whether or not the maximum height and the minimum height of the spread surface 5a are included in the readable range R of the image sensor 22 ( Step S13).

In step S13, since the entire spread surface 5a is included in the readable range R, the control unit 8 starts the reading operation on both sides of the spread surface 5a when it is determined that the correction of the deflection is unnecessary (NO). (Step S14). After performing the reading operation on both sides of the spread surface 5a, the control unit 8 performs image processing of the read image by the image processing unit 37 (step S15), and transfers the read data to the external device by the communication unit 36 (step S16). ).

On the other hand, in Step S13, when it is determined that the entire spread surface 5a is not included in the readable range R and the deflection needs to be corrected (YES), the control unit 8 starts the correction operation on both sides of the spread surface 5a. (Step S17). After performing the correction operation on both sides of the spread surface 5a, the control unit 8 determines whether or not both sides of the spread surface 5a can be read simultaneously (step S18). At this time, the control unit 8 detects again the height of the spread surface 5a by the height detection unit 27, and based on the detection result, whether or not the entire area of both sides of the spread surface 5a is included in the readable range R. Determine.

In step S18, since the entire spread surface 5a is included in the readable range R, the control unit 8 reads both surfaces of the spread surface 5a when it is determined that both surfaces of the spread surface 5a can be read simultaneously (YES). The operation is started (step S14). Thereafter, the controller 8 performs image processing (step S15) and transfer of read data (step S16) in the same manner as described above.

On the other hand, when the control unit 8 determines in step S18 that the entire spread surface 5a is not included in the readable range R and it is impossible to simultaneously read both surfaces of the spread surface 5a (NO), the spread surface 5a. The process proceeds to an operation of correcting and reading the deflection of one side of the sheet (step S19), and the operation of correcting the one side of the spread surface 5a is started (step S20).

After performing the correction operation on one side of the spread surface 5a, the control unit 8 determines whether or not one side of the spread surface 5a whose deflection has been corrected can be read (step S21). At this time, the control unit 8 detects again the height of one side of the spread surface 5a by the height detection unit 27, and based on the detection result, the entire one side of the spread surface 5a whose deflection is corrected is within the readable range R. It is determined whether or not it is included.

In step S21, since the entire surface of one side of the spread surface 5a is included in the readable range R, the control unit 8 determines that one side of the spread surface 5a can be read (YES). A reading operation is started (step S22). After performing the reading operation of one side of the spread surface 5a, the control unit 8 shifts to an operation of correcting and reading the deflection of the other side of the spread surface 5a (step S23), and correcting the other side of the spread surface 5a. The operation is started (step S24).

After performing the correction operation on the other side of the spread surface 5a, the control unit 8 determines whether or not the other side on which the deflection is corrected can be read (step S25). At this time, the control unit 8 detects again the height of the other side by the height detection unit 27, and based on the detection result, whether the other one side of the other side whose deflection has been corrected is included in the readable range R. Determine whether or not.

In step S25, since the entire area of the other one surface is included in the readable range R, the control unit 8 determines that the other surface can be read (YES), and reads the other surface of the spread surface 5a. Is started (step S26). Thereafter, the controller 8 performs image processing (step S15) and transfer of read data (step S16) in the same manner as described above.

In addition, in any of steps S21 and S25, the control unit 8 determines that the entire surface of one side of the spread surface 5a is not included in the readable range R, and it is impossible to read the one surface in which the deflection is corrected. (NO), an unreadable error is displayed on a display unit such as an external monitor (step S27), and the reading operation of the binding medium 5 is terminated. Since the end portion in the spread direction swells and lifts, the bending stiffness of the page of the binding medium 5, ie, a so-called firmness, swells and lifts up.

(Double-sided reading operation on facing side)
FIG. 28 is a flowchart for explaining a correction operation on both sides of the spread surface 5a of the binding medium 5 in the binding medium reading device 1 according to the first embodiment. FIG. 29 is a flowchart for explaining the reading operation on both sides of the spread surface 5a of the binding medium 5 in the binding medium reading device 1 according to the first embodiment.

The correction operation on both sides of the spread surface 5a in step S17 in FIG. 27 will be specifically described. As shown in FIG. 28, the control unit 8 serving as the movement amount calculation unit 29 corrects the deflection of both sides of the spread surface 5a simultaneously based on the height of the spread surface 5a of the binding medium 5 detected by the height detection unit 27. Calculation of the amount of movement of the holding unit 12 for starting is started (step S31). First, the control unit 8 determines whether or not the height of the center O of the valley of the binding portion 5b of the spread surface 5a is equal to the height of the end portion in the spread direction of the spread surface 5a (step S32).

In step S32, for example, the control unit 8 determines that the height of the center O of the valley of the binding portion 5b of the spread surface 5a is lower than the height of the end portion in the spread direction of the spread surface 5a (NO). The control unit 8 causes the movable unit 13 to move the height of the holding unit 12 by the calculated movement amount (step S33). Thereby, the control unit 8 positions the center O of the valley of the binding portion 5b of the spread surface 5a and the end portion in the spread direction of the spread surface 5a on the same plane in the height direction, and both surfaces of the spread surface 5a. The deflection is corrected.

After moving the height of the binding unit 5b of the binding medium 5, the control unit 8 rotates the angle of the holding unit 12 by the calculated movement amount (step S34). At this time, the control unit 8 corrects the deflection of both sides of the spread surface 5a by making the center line of the angle (θ1 + θ2) formed by the entire valley of the binding portion 5b of the spread surface 5a parallel to the vertical direction. In step S32, when the control unit 8 determines that the height of the center O of the valley of the binding portion 5b of the spread surface 5a is equal to the height of the end portion in the spread direction of the spread surface 5a (YES), the holding is performed. Without moving the height of the section 12, the process proceeds to step S34. Finally, the control unit 8 detects again the height of both sides of the spread surface 5a with the deflection corrected by the height detection unit 27 (step S35).

The reading operation on both sides of the spread surface 5a in step S14 in FIG. 27 will be specifically described. As shown in FIG. 29, the control unit 8 focuses on both sides of the spread surface 5a of the binding medium 5 based on the height of the spread surface 5a of the binding medium 5 detected by the height detection unit 27. The initial position of the carrier 24 on one side of the pair of reading

units

7L and 7R is adjusted (step S41). Subsequently, based on the height of the spread surface 5a of the binding medium 5 detected by the height detection unit 27, the control unit 8 performs a set of readings so that both sides of the spread surface 5a of the binding medium 5 are focused. The initial position of the carrier 24 on the other side of the

portions

7L and 7R is adjusted (step S42).

Next, the control unit 8 reads an image on one side, which is a medium on one side of the spread surface 5a on the mounting table 11, using one side of the pair of reading

units

7L and 7R (step S43). Subsequently, the control unit 8 reads an image on one side, which is a medium on the other side of the spread surface 5a on the mounting table 11, using the other side of the pair of reading

units

7L and 7R (step S44).

(Single-sided reading operation on facing side)
FIG. 30 is a flowchart for explaining a correction operation on one side of the spread surface 5a of the binding medium 5 in the binding medium reading device 1 according to the first embodiment. FIG. 31 is a flowchart for explaining a single-sided reading operation on the spread surface 5a of the binding medium 5 in the binding medium reading device 1 according to the first embodiment.

27 will be specifically described for the correction operation on one side of the spread surface 5a in step S20 of FIG. As shown in FIG. 30, the control unit 8 serving as the movement amount calculating unit 29 corrects the deflection of one side of the spread surface 5a based on the height of the spread surface 5a of the binding medium 5 detected by the height detection unit 27. Calculation of the amount of movement of the holding unit 12 for starting is started (step S51). First, the control unit 8 determines whether or not the height of the center O of the valley of the binding portion 5b of the spread surface 5a is equal to the height of the end portion in the spread direction of the spread surface 5a (step S52).

In step S52, for example, the control unit 8 determines that the height of the center O of the valley of the binding portion 5b of the spread surface 5a is lower than the height of the end portion in the spread direction of the spread surface 5a (NO). The control unit 8 causes the movable unit 13 to move the height of the holding unit 12 by the calculated movement amount (step S53). As a result, the control unit 8 positions the center O of the valley of the binding portion 5b of the spread surface 5a and the end portion of the spread surface 5a in the spread direction on the same plane in the height direction, so that one side of the spread surface 5a The deflection is corrected.

After moving the height of the binding unit 5b of the binding medium 5, the control unit 8 rotates the angle of the holding unit 12 by the calculated movement amount (step S54). At this time, the control unit 8 rotates the holding unit 12 by the deflection angle θ (= 90 ° −θ1) of the binding portion 5b of the spread surface 5a, and the inner wall on one side of the valley of the binding portion 5b is set in the horizontal direction. By making them parallel, the deflection of one side of the spread surface 5a is corrected. In Step S52, when it is determined that the height of the center O of the valley of the binding portion 5b of the spread surface 5a is equal to the height of the end portion in the spread direction of the spread surface 5a (YES), the control unit 8 holds. Without moving the height of the part 12, the process proceeds to step S54. Finally, the control unit 8 detects again the height of one side of the spread surface 5a whose deflection has been corrected by the height detection unit 27 (step S55).

The reading operation on one side of the spread surface 5a in step S22 in FIG. 27 will be specifically described. As shown in FIG. 31, the control unit 8 focuses on one side of the spread surface 5 a of the binding medium 5 based on the height of the spread surface 5 a of the binding medium 5 detected by the height detection unit 27. Of the set of reading

units

7L and 7R, the initial position of the carrier 24 on one side corresponding to one side is adjusted (step S61). Next, the control unit 8 reads an image of the medium (one side) on one side of the spread surface 5a on the mounting table 11 using one side corresponding to one side of the pair of reading

units

7L and 7R (step) S62).

The binding medium placing device 6 according to the first embodiment includes a placement table 11 on which the binding medium 5 is placed, a holding part 12 that holds the binding part 5b of the binding medium 5, and an extension of the holding part 12 to the binding part 5b. And a movable portion 13 that rotates around an axis parallel to the direction and maintains the rotation state. Thereby, the deflection of the spread surface 5a can be corrected by rotating the holding portion 12 without pressing the spread surface 5a using a presser or the like. Therefore, it is possible to avoid an overlapping portion (unreadable area) where the spread surface 5a partially overlaps in the vicinity of the valley of the binding portion 5b, and it is possible to appropriately read information in the vicinity of the binding portion 5b of the spread surface 5a. become.

Further, the binding medium placing device 6 moves the holding unit 12 by the movable unit 13 when the control unit 8 serving as the deflection determination unit 28 determines that the entire double-sided spread surface 5a is not located within the readable range R. By rotating, it is possible to properly correct the deflection of the spread surface 5a when necessary.

In addition, the binding medium placing device 6 appropriately adjusts the deflection of the spread surface 5a by causing the movable unit 13 to rotate the holding unit 12 based on the rotation angle calculated by the control unit 8 serving as the movement amount calculation unit 29. Can be corrected.

Further, the control unit 8 as the deflection determination unit 28 in the binding medium placing device 6 determines whether the entire area of the double-sided surface 5a is within the readable range R after the movable unit 13 rotates the holding unit 12. If the entire area of both sides is not located within the readable range R, it is determined whether the entire area of one side of the spread surface 5a is located within the readable range R. Thereby, when the deflection of the spread surface 5a is relatively small, both sides of the spread surface 5a can be read at the same time, so that the reading efficiency of the spread surface 5a can be improved. That is, the control part 8 can improve the reading efficiency of the spread surface 5a by controlling to read one surface at a time only when both sides of the spread surface 5a cannot be read simultaneously.

The movable unit 13 in the binding medium placing device 6 can effectively correct the deflection of the spread surface 5a by moving the holding unit 12 in the height direction intersecting the spread surface 5a. Further, the movable portion 13 has a height of the holding portion 12 on the spread surface 5a so that the one end P in the spread direction and the center O of the valley of the binding portion 5b are located on the same plane in the height direction. By moving, the deflection of the spread surface 5a can be corrected appropriately.

Hereinafter, other embodiments will be described with reference to the drawings. In other embodiments, the same components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and description thereof is omitted. In other embodiments, only the binding medium placing device is shown for convenience of explanation, but a set of reading units is provided as in the first embodiment.

FIG. 32 is a perspective view illustrating a binding medium placing device included in the binding medium reading device according to the second embodiment. The second embodiment is different from the first embodiment in which the holding unit 12A is manually rotated by the drive motor.

As shown in FIG. 32, the binding medium placement device 51 included in the binding medium reading device according to the second embodiment includes a placement table 11 on which the binding medium 5 is placed, and a binding medium 5 placed on the placement table 11. A holding portion 12A for holding the binding portion 5b. Also. The binding medium placement device 51 rotates the rotation shaft 53 fixed to the holding portion 12A, the support member 54 that rotatably supports the holding portion 12A via the rotation shaft 53, and the rotation shaft 53. And a handle member 55 as an operation member.

The rotation shaft 53 is arranged in parallel with the extending direction of the binding portion 5b held in the holding portion 12A. In addition, the rotation shaft 53 is provided with a torque limiter 56 that regulates the torque around the shaft to a constant level, so that the holding portion 12A is prevented from being excessively rotated and the binding medium 5 held by the holding portion 12A. To prevent damage. Moreover, although not shown in figure, 12 A of holding | maintenance parts may be comprised so that raising / lowering is manual with respect to a height direction.

According to the second embodiment, by manually rotating the holding portion 12A, the driving mechanism of the movable portion 13 and the control circuit of the movable portion 13 can be omitted, and thus the entire binding medium placing device 51 can be reduced in size. It is possible to reduce the weight. In the second embodiment, similarly to the first embodiment, the deflection of the spread surface 5a can be corrected without rotating the spread surface 5a by rotating the holding portion 12A by the handle member 55.

FIG. 33 is a perspective view illustrating a binding medium placing device included in the binding medium reading device according to the third embodiment. The third embodiment is different from the first embodiment in that the holding portion 12A is manually rotated similarly to the second embodiment. The third embodiment is different from the first embodiment in that the holding portion 12A includes a notification unit for assisting the rotation operation. Different from Example 2. In the third embodiment, the same components as those of the second embodiment are denoted by the same reference numerals as those of the second embodiment, and the description thereof is omitted.

As shown in FIG. 33, the binding medium placement device 61 of the third embodiment includes an outer casing 63 that covers the entire binding medium placement device 51 described above. Further, the outer casing 63 of the binding medium placing device 61 is provided with a status indicator lamp 64 as a notifying unit for notifying a result determined by the deflection determining unit 28 and a scan button 65 for starting a reading operation. ing.

The status indicator 64 and the scan button 65 are provided for each mounting surface 11 a of the mounting table 11. In the binding medium placement device 61, a reading operation is performed on each side of the spread surface 5 a of the binding medium 5 placed on the placement table 11. The status indicator lamp 64 has a large deflection on one side of the spread surface 5a and is lit when correction is necessary, and a blue light 64b that is lit when the deflection on one side of the spread surface 5a is small and does not require correction. And having. The state indicator lamp 64 is connected to the control unit 8 as the deflection determination unit 28 described above, and lighting is controlled by the control unit 8. The scan button 65 is connected to the image reading control unit 32 of the control unit 8, and can operate the

reading units

7L and 7R to start the reading operation.

FIG. 34 is a flowchart for explaining the reading operation of the binding medium 5 in the binding medium placing device 61 of the third embodiment. First, as shown in FIG. 34, the binding medium reading device according to the third exemplary embodiment having the binding medium placing device 61 and the PC connected to the binding medium reading device are turned on (step S71). The binding part 5b of the binding medium 5 read by the binding medium reading device is fixed to the holding part 12A (step S72). Subsequently, the binding medium 5 is placed on the placement surface 11a of the placement table 11 with the spread surface 5a facing upward, and a page to be read is opened (step S73).

After the power is turned on, the binding medium reading device according to the third embodiment continuously detects the height of the spread surface 5a of the binding medium 5 on the mounting table 11 by the height detection unit 27 (step S74). Based on the height of the spread surface 5a detected by the height detection unit 27, the control unit 8 as the deflection determination unit 28 starts determining whether or not to correct the deflection of the spread surface 5a (step S75). At this time, the control unit 8 continues to determine whether it is necessary to correct the deflection for each side of the spread surface 5a.

The control unit 8 turns on the state indicator lamp 64 for each side of the spread surface 5a according to the deflection state of the spread surface 5a of the binding medium 5 (step S76). At this time, when the bending state of the spread surface 5a of the binding medium 5 is changed by the user turning the holding portion 12A by the handle member 55, the control unit 8 changes the state indicator lamp 64 according to the changed bending state. Switch the lighting of. When it is necessary to correct the deflection of one side of each spread surface 5a, the control unit 8 turns on the red lamp 64a and turns off the blue lamp 64b. Moreover, the control part 8 turns on the blue lamp 64b and turns off the red lamp 64a, when it is not necessary to correct | amend the deflection | deviation of the single side | surface for every one side of the facing surface 5a.

The user, for example, slightly rotates the holding portion 12A by rotating the handle member 55 to the reading side of both the spread surfaces 5a (step S77). Accordingly, there is a possibility that the deflection on one side of the spread surface 5a of the binding medium 5 on the mounting table 11 is corrected to some extent. Subsequently, the user visually determines whether or not the blue lamp 64b in the lighting state of the status display lamp 64 is lit (step S78). In step S78, when the blue lamp 64b of the status indicator lamp 64 is lit (YES), the entire area on one side is located in one readable range R of the pair of reading

units

7L and 7R. A scan button 65 provided on the same side as the side to be read is pressed (step S79).

The binding medium reading device performs a reading operation on one side where the scan button 65 is pressed (step S80). Next, the user determines whether or not to read the other side of the spread surface 5a (step S81). If it is determined in step S81 that the user reads the other side of the spread surface 5a (YES), the process returns to step S77. In step S81, when it is determined that the other side of the spread surface 5a is not read (NO), the user determines whether to read another spread surface 5a (step S82). In step S82, when the user has finished reading both sides of the spread surface 5a and determines that another spread surface 5a is to be read (YES), the user returns to step S73 and turns the page of the read spread surface 5a to start a new page. Another spread surface 5a to be read is opened. In step S82, when the user determines not to read another spread surface 5a (NO), the reading operation of the spread surface 5a is terminated.

On the other hand, if the blue light 64b is not lit in step S78, the handle member 55 is rotated again to adjust the angle of the holding portion 12A so that the blue light 64b is lit. When the blue light 64b is not turned on by rotating the handle member 55 again (NO), for example, when a predetermined time has elapsed, the control unit 8 does not include the entire area of one side within the readable range R, It is determined that it is impossible to correct the deflection. At this time, the control unit 8 displays an unreadable error on a display unit such as an external monitor (step S83), and ends the reading operation of the binding medium 5. The medium having a strong bending rigidity of the page of the binding medium 5, that is, a so-called firmness, bulges and lifts at the end portion in the spread direction, and thus may not be able to sufficiently correct the bulge that is a deflection.

In the third embodiment, the user can refer to the state indicator lamp 64 to appropriately rotate the holding portion 12A in order to correct the deflection of the spread surface 5a, and easily correct the deflection of the spread surface 5a. can do. In the third embodiment, as in the first and second embodiments, the deflection of the spread surface 5a can be corrected without rotating the spread surface 5a by rotating the holding portion 12A by the handle member 55. it can.

DESCRIPTION OF SYMBOLS 1 Binding medium reading apparatus 5 Binding medium 5a Facing surface 5b Binding part O The center of the valley of a binding part 6 Binding

medium mounting apparatus

7L, 7R Reading part 8 Control part 11 (11F, 11V) Mounting stand 12 (12A, 12B) Holding Unit 13 Movable unit 16 Rotating mechanism 17 Elevating mechanism 27 Height detecting unit 28 Deflection determining unit 29 Movement amount calculating unit 64 Status indicator lamp

Claims

A mounting table on which the binding medium is mounted with the facing surface facing upward;
A holding unit for holding a binding portion of the binding medium placed on the mounting table;
A movable portion that rotates the holding portion that holds the binding portion around an axis parallel to the extending direction of the binding portion and maintains the rotation state;
A binding medium placing device comprising:
2. The binding medium placement device according to claim 1, wherein the movable part rotates the holding part in a direction to reduce the deflection of the spread surface of the binding medium placed on the mounting table.
A detection unit for detecting a deflection of the spread surface with respect to a height direction intersecting the spread surface;
A determination unit that determines whether or not the entire area of both sides of the spread surface is located within a predetermined range in the height direction based on a result detected by the detection unit;
The binding medium placing device according to claim 2, wherein the movable unit rotates the holding unit when the determination unit determines that the entire area of both surfaces is not located within the predetermined range.
Based on the detection result of the detection unit, further comprising a calculation unit for calculating a rotation angle for rotating the binding unit,
The binding medium placing device according to claim 3, wherein the movable unit rotates the holding unit based on the rotation angle.
The determination unit determines whether or not the entire area of both sides of the spread surface is located within the predetermined range after the movable unit rotates the holding unit, and the entire area of the both surfaces is within the predetermined range. 5. The binding medium placement device according to claim 3, wherein, when the position is not located at a position, it is determined whether or not the entire one surface of the spread surface is located within the predetermined range.
The binding medium placing device according to any one of claims 3 to 5, wherein the movable unit further moves the holding unit in a height direction intersecting the spread surface.
The movable portion moves the height of the holding portion on the spread surface so that one end in the spread direction and the center of the valley in the binding portion region are located on the same plane in the height direction. The binding medium placing device according to claim 6.
An operation member for rotating the movable part;
A detection unit that detects a deflection of the spread surface of the binding medium placed on the mounting table with respect to a height direction intersecting the spread surface;
A determination unit that determines whether or not the entire area of one side of the spread surface is located within a predetermined range in the height direction based on a result detected by the detection unit;
An informing unit for informing a result of the determination by the determining unit;
The binding medium placing device according to claim 1, further comprising:
The binding medium placing device according to any one of claims 1 to 8,
A binding medium reading device comprising: a reading unit that reads the binding medium.