JP2014061620A - Page-turning device and document image camera system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To speed up page-turning by integrating operations of separating and turning a page of a book and improving reliability in the operation.SOLUTION: A page-turning device 3, for use in turning a page P of a book B, includes: a suction part 35 for suctioning or separating a page P of the open book B; an arm part 34 that has a suction part 35 on the end part, and swings to cause the suction part 35 to reciprocate above the page P between the turning-origin position and turning-destination position so as to suction the suction part 35 on the page P at a turning-origin position of the page P and separate the suction part 35 from the page P above the page P at the turning destination position of the page P; a first drive part 33 for swinging the arm part 34 around a drive shaft 32 as center; and a second drive part 37 for rotating the suction part 35 relatively to the arm part 34.

Description

  The present invention relates to a page turning apparatus and a document camera system.

  2. Description of the Related Art Conventionally, as an apparatus for automatically turning pages such as books, page turning for individually operating a separation mechanism for separating overlapping pages one by one and a turning mechanism for turning separated pages. An apparatus is known (see, for example, Patent Document 1).

JP-A-7-89260

By the way, as with other electronic devices, it is desired to increase the speed of the page turning apparatus. In the above-described page turning apparatus, the separation mechanism and the turning mechanism operate at different timings, which is an adverse effect of speeding up.
Accordingly, an object of the present invention is to realize an operation of separating and turning a page of a book by one operation and to increase the certainty of the operation to speed up the page turning.

In order to solve the above problems, according to one aspect of the present invention,
A page turning device for turning a page of a book,
An adsorbing part that adsorbs or separates the pages of the opened book;
In order to have the suction part at the leading end, to suck the suction part to the page at the page turning origin position, and to separate the suction part from the page at the page turning destination position, An arm portion that swings to reciprocate the suction portion above the page at the turning point position;
A first drive unit that swings the arm unit about a drive shaft;
It is possible to provide a page turning apparatus including a second drive unit that rotates the suction unit with respect to the arm unit.

  According to the present invention, the operation of separating and turning pages of a book is realized by one operation, and the page turning speed is increased by improving the certainty of the operation.

It is a perspective view which shows schematic structure of the document camera system of this embodiment. It is explanatory drawing which shows the principal part structure of the document camera system of FIG. 1, (a) is a top view, (b) is a side view. It is the figure which showed the path | route of the adsorption | suction part with which the front-end | tip part of the arm part which concerns on this embodiment was equipped from the front side. It is explanatory drawing which showed typically how the inclination of the drive shaft of the 1st drive part which concerns on this embodiment influences the page turning operation | movement. It is a schematic diagram showing the difference in the path of the suction portion depending on the case where the drive shaft of the first drive portion according to the present embodiment is horizontal and the case where the drive shaft is inclined with respect to a vertical line perpendicular to the binding line, (A) is a top view, (b) is a side view, and (c) is a front view. It is a schematic diagram which shows schematic structure of the arm part which concerns on this embodiment. It is a front view which shows schematic structure of the adsorption | suction part which concerns on this embodiment. It is a perspective view which shows schematic structure of the adhesive member which concerns on this embodiment. It is explanatory drawing which shows the procedure which peels off the adhesive member from which the adhesive force concerning this embodiment became weak. It is a block diagram which shows the main control structure of the document camera system which concerns on this embodiment. It is a flowchart which shows the flow of the page turning process performed with the page turning apparatus of this embodiment. It is the figure which showed the path | route of the adsorption | suction part at the time of the forward movement of the arm part which concerns on this embodiment, and the rotation direction of the adsorption | suction part from the front side. It is a timing chart which shows the drive timing of the 1st drive part of the turning operation for one page concerning this embodiment, and the 2nd drive part. It is a schematic diagram which shows the modification of an adsorption | suction part.

  The best mode for carrying out the present invention will be described below with reference to the drawings. However, although various technically preferable limitations for implementing the present invention are given to the embodiments described below, the scope of the invention is not limited to the following embodiments and illustrated examples.

FIG. 1 is a perspective view showing a schematic configuration of the document camera system of the present embodiment. 2A and 2B are explanatory views showing the main configuration of the document camera system, wherein FIG. 2A is a top view and FIG. 2B is a side view. In the following description, a case where the page P of the book B is turned from left to right will be described.
As shown in FIGS. 1 and 2, the document camera system 1 includes a document camera 2 as an imaging unit that images the page P of the book B, a page turning device 3 that turns the page P of the book B, and a document camera 2. And a personal computer 4 communicatively connected to the page turning apparatus 3.

  The document camera 2 is provided with a stand portion 21 and a camera 22 attached to the upper end of the stand portion 21. The stand unit 21 can be tilted in the front-rear direction and the left-right direction and can be expanded and contracted in the vertical direction so that the relative positional relationship between the book B and the camera 22 can be adjusted. The lens of the camera 22 faces downward so that the book B is within the angle of view. A position adjustment mechanism is provided at a joint portion between the camera 22 and the stand portion 21, so that the direction in which the lens of the camera 22 faces can be adjusted.

  The page turning device 3 includes a pedestal 31, a first drive unit (drive unit) 33 such as a motor having a drive shaft 32 provided on the pedestal 31, an arm unit 34 that swings around the drive shaft 32, An adsorbing unit 35 that is attached to the tip of the arm unit 34 and adsorbs or separates from the page P of the book B, and a control unit 36 that controls each unit are provided.

The pedestal 31 is arranged on the table so that, for example, the upper side b1 of the book B opened on the table is parallel to one side. In the following description, the book B side is the rear and the pedestal 31 side is the front. The seam b2 of the book B is along the front-rear direction. The pedestal 31 includes a main pedestal portion 311 and a sub pedestal portion 312 provided so as to overlap the main pedestal portion 311 and having an adjustable angle α with respect to the main pedestal portion 311. A hinge (not shown) is provided at the rear end portion (end portion on the book B side) of the sub table portion 312, and the angle α between the sub table portion 312 and the main table portion 311 can be adjusted by this hinge. . The sub table 312 is provided with a rotatable rotating plate 313 that supports the first driving unit 33. A drive shaft 32 of the first drive unit 33 is arranged in parallel to the upper surface of the rotating plate 313.
When the page P of the book B is turned from left to right, the rear end portion (end portion on the book B side) of the drive shaft 32 is on the right side with respect to the binding b2 of the page P and corresponds to the base end portion. The angle of the rotating plate 313 is determined so that the front end (the end opposite to the book B) is on the left side with respect to the stitch b2. On the other hand, when the page P of the book B is turned from right to left, the rear end portion (end portion on the book B side) of the drive shaft 32 is on the left side with respect to the binding b2 of the page P, and the front end portion. The angle of the rotating plate 313 is determined so that (the end opposite to the book B) is on the right side with respect to the stitch b2.
Regardless of the turning direction, the drive shaft 32 is inclined with respect to the surface (horizontal plane) on which the book B is placed while the base end portion is inclined with respect to the binding b2 of the book B so as to be on the page P turning position side. Is inclined by an angle α.
A positioning mark 314 is formed at the rear end portion (end portion on the book B side) of the sub table portion 312. The pedestal 31 is preferably arranged so that the mark 314 overlaps the extension line of the binding b2.

The arm portion 34 is tilted toward the book B side with respect to the drive shaft 32, and when the drive shaft 32 rotates, the arm portion 34 draws an arc around the drive shaft 32 and the turning position of the page P. The page P is reciprocated between the turning positions of the page P. In other words, the drive shaft 32 is the axis of symmetry of the arm portion 34. In the following description, the movement of the page P from the turning origin position to the turning destination position is referred to as forward movement, and the movement from the turning destination position to the turning origin position is referred to as backward movement.
FIG. 3 is a diagram showing the path of the suction portion 35 provided at the distal end portion of the arm portion 34 from the front side (direction along the axis of the binding b2 on the page P (direction in which the binding b2 is a normal)). . As shown in FIG. 3, the suction portion 35 at the tip of the arm portion 34 moves so as to draw an arc above the page P from the position in contact with the turning position of the page P during forward movement. Then, the page P is moved to the turning position.

  FIG. 4 is an explanatory view schematically showing how the inclination of the drive shaft 32 affects the page P turning operation. FIG. 4A shows a case where the drive shaft 32 is disposed horizontally along the extension line of the stitch b2. In this case, since the suction part 35 moves along a path having the binding line b2 as the axis of symmetry, the suction part 35 remains in contact with the right side page P even at the turning point position and can be separated from the page P. Can not.

4B, with the drive shaft 32 kept horizontal, the rear end portion of the drive shaft 32 is on the right side with respect to the binding b2 of the page P, and the front end portion corresponding to the base end portion is with respect to the binding b2. The case where it is tilted to the left is shown. In this case, even if the suction portion 35 is sucked at the turning position of the page P, if the arm portion 34 rotates about the drive shaft 32, the suction portion 35 moves away from the book B to the front side at the forward end point position. Become. For this reason, it is possible to easily separate the adsorbing portion 35 from the adsorbed page P.
However, it has been found that the page P may not be turned smoothly. One possible reason for this is that the distance between the book B and the suction portion 35 increases from the first half of the page turning to the middle (ellipse S portion).

FIG. 4C shows the case where the drive shaft 32 is tilted with respect to the binding B2 of the book B and also tilted with respect to the horizontal plane, that is, the case of the drive shaft 32 of the present embodiment. In this case, the distance between the book B and the suction portion 35 in the middle part (ellipse S portion) from the first half of the page turning is shorter than in the case of FIG.
Specifically, FIG. 5 is a schematic diagram showing a difference in the path of the suction portion 35 depending on whether the drive shaft 32 is horizontal or tilted with respect to a horizontal plane, (a) is a top view, and (b). ) Is a side view, and (c) is a front view. In FIG. 5, the horizontal direction of book B is the x direction, the vertical direction of book B is the y direction, and the vertical direction of book B is the z direction. FIG. 5 shows a case where the drive shaft 32 and the binding b2 of the book B are aligned on a straight line in order to clarify the point where the drive shaft 32 is inclined with respect to the horizontal plane. As shown in FIG. 5, when the drive shaft 32 is horizontal (dotted line portion in the drawing), the locus n1 of the suction portion 35 is linear along the left-right direction when viewed from above (FIG. 5A). When viewed from the side, it is linear along the vertical direction (FIG. 5B), and when viewed from the front, it is semicircular (FIG. 5C). On the other hand, when the drive shaft 32 is tilted with respect to the horizontal plane (the solid line portion in the figure), the locus n2 of the suction portion 35 has an arc shape with the rear side convex when viewed from above (FIG. 5A). When viewed from the side, the upper end is a straight line inclined to the rear side (FIG. 5B), and when viewed from the front, the semicircle is crushed in an arc (FIG. 5C). A trajectory n2 shown in FIG. 5B shows a state in which the driving trajectory plane of the suction unit 35 is viewed from the side, but the plane (xz) including the horizontal direction of the book B and the vertical normal of the book B It can be seen that it is inclined with respect to the plane.
Further, as is clear from FIG. 5C, the distance from the suction portion 35 to the binding b2 is that the suction portion 35 is attracted to the page P at the turning original position when the suction portion 35 passes above the binding b2. Shorter than when. That is, when the suction part 35 passes above the stitch b2, the trajectory n2 can make the distance from the book B to the suction part 35 shorter than the trajectory n1.
From this, in the case of the present embodiment shown in FIG. 4C, the distance between the book B (the binding b2) and the suction portion 35 is increased in the latter half of the page turning, and the suction portion starts from the suctioned page P. 35 can be easily separated, and the distance between the book B (stitch b2) and the adsorbing portion 35 in the middle plate (ellipse S portion) from the first half of the page turning can be shortened, and the page P can be slackened appropriately. Therefore, it is possible to turn the page P with certainty.
At the time of backward movement, the traveling direction is opposite to that at the time of forward movement, and the adsorbing portion 35 moves in a state separated from the page P along the same path, and finally moves to a new page P at the page P turning position. Adsorb. By repeating this reciprocating operation, the page P turning operation proceeds.

In addition, in this embodiment, as shown in FIG.4 (c), while the drive shaft 32 was inclined with respect to the binding b2 of the book B which was opened, it demonstrated with the example inclined also with respect to the horizontal surface. However, it is a matter of course that the drive shaft 32 is individually effective even when the drive shaft 32 is inclined with respect to either the binding b2 or the horizontal plane.
When the drive shaft 32 is inclined only with respect to the horizontal plane, as described later, the second drive unit 37 is driven, or the suction unit 35 is stopped at a position higher than the left side on the right side. What is necessary is just to make it easy to separate the adsorption | suction part 35 from a page.

Next, specific configurations of the arm part 34 and the suction part 35 will be described. FIG. 6 is a schematic diagram showing a schematic configuration of the arm portion 34. As shown in FIG. 6, the arm portion 34 is a plate-like member whose base end portion is attached to the drive shaft 32. A suction part 35 is attached to the tip of the arm part 34 via a second drive part 37 such as a motor, and the second drive part 37 and the suction part 35 are covered with a cover 38.
The second drive unit 37 is disposed such that the drive shaft 39 extends along a direction orthogonal to the longitudinal direction of the arm unit 34. A suction portion 35 is detachably attached to the drive shaft 39, and the suction portion 35 rotates as the drive shaft 39 rotates.

FIG. 7 is a front view illustrating a schematic configuration of the suction unit 35. As shown in FIG. 7, the suction unit 35 includes a columnar rotating roller 351 and an adhesive member 352 wound around the rotating roller 351.
Here, there is a desire to improve the replacement work efficiency of the suction portion 35 with respect to the drive shaft 39 of the second drive portion 37. For this reason, the rotation roller 351 is formed of an elastic body such as sponge, and a fitting hole 353 into which the drive shaft 39 is fitted is formed at the center thereof. Examples of the elastic body other than the sponge include rubber and foam. The inner diameter of the fitting hole 353 is formed smaller than the outer diameter of the drive shaft 39, and when the drive shaft 39 is pushed into the fitting hole 353, the rotating roller 351 contracts and the drive shaft 39 is placed in the fitting hole 353. Mating. Therefore, even at the time of replacement, it is possible to remove the rotating roller 351 from the drive shaft 39 by simply pulling it out. Thus, since the rotating roller 351 is an elastic body, the attaching / detaching operation of the suction portion 35 with respect to the drive shaft 39 can be easily performed, and the replacement work can be facilitated.

  FIG. 8 is a perspective view showing a schematic configuration of the adhesive member 352. As shown in FIG. 8, the adhesive member 352 is a sheet body and has a double-sided adhesive structure such as a double-sided tape. The adhesive member 352 has a two-layer structure, and on the side (surface side) adsorbed to the book B, a weakly viscous layer 354 having a property of leaving no residue even when peeled off and a property of being used multiple times. ing. On the other hand, on the back side, a strong viscous layer 355 having a higher viscosity than the weak viscous layer 354 is provided so that the state wound around the rotating roller 351 can be maintained. And perforation 356 is formed in adhesive member 352 for every predetermined length.

  FIG. 9 is an explanatory diagram showing a procedure for removing the adhesive member 352 whose adhesive strength has become weaker. First, when the user feels that the adhesive strength is weakened, the weak adhesive layer 354 of the new adhesive member 352 is exposed by peeling off the adhesive member 352 on the outermost surface as shown in FIG. 9A. Then, the portion where the adhesive force is weak is cut along the perforation 356. If there is a part temporarily peeled off as shown in FIG. 9B at the time of cutting, the user attaches the part again. As a result, a new weakly viscous layer 354 is exposed, so that the page turning operation can be appropriately restarted.

Next, the main control configuration of the document camera system 1 of the present embodiment will be described. FIG. 10 is a block diagram showing a main control configuration of the document camera system 1. As shown in FIG. 10, the control unit 36 of the page turning apparatus 3 includes a motor driver 361 for driving the first drive unit 33, a motor driver 362 for driving the second drive unit 37, and various programs. Is stored in the ROM 363, the RAM 364 in which the program is expanded when the program in the ROM 363 is executed, the operation unit 365 to which various instructions are input, and the program in the ROM 363 based on the instruction from the operation unit 365 in the RAM 364. A CPU 366 that controls the motor drivers 361 and 362 by expanding and executing, an I / F 367 to which the personal computer 4 is connected, and a power source 368 are provided.
The operation unit 365 is provided with a start switch 365a for starting the page turning process, a stop switch 365b for stopping the page turning process, and the like.

Hereinafter, the page turning process by the document camera system 1 will be described. FIG. 11 is a flowchart showing the flow of the page turning process.
First, preparation before the page turning process is executed will be described. In the page turning device 3, the position of the arm part 34 is adjusted in advance so that the suction part 35 is arranged at the starting point (return end point position). At this time, the user confirms the adhesiveness of the adhesive member 352, and when the viscosity is weak, the user removes the weak portion to expose a new adhesive member 352. Then, the book B is opened, the page P one page before the page P to be taken in is opened, and the suction portion 35 is moved to the forward movement end point position (reverse movement starting point position. Then, the page turning device 3 When the power of is turned ON, the CPU 366 loads the page turning processing program in the ROM 363 into the RAM 364 and executes it.

As shown in FIG. 11, in step S1, the CPU 366 determines whether or not the start switch 365a has been operated. If not, the CPU 366 continues the state, and if operated, the process proceeds to step S2.
In step S2, the CPU 366 controls the first drive unit 33 so that the arm unit 34 moves (returns) from right to left.
In step S3, the CPU 366 determines whether or not the driving time of the first driving unit 33 has exceeded the first predetermined time. If the driving time is less than the first predetermined time, the CPU 366 continues to drive the first driving unit 33 as it is. When the first predetermined time is exceeded, the process proceeds to step S4. The first predetermined time is set to a time during which the arm unit 34 can be moved from the start point to the end point of the backward movement.
In step S4, the CPU 366 stops the first drive unit 33. As a result, the suction is performed on the left page P in a state where the rotation of the suction unit 35 is stopped.

In step S5, the CPU 366 controls the first drive unit 33 so that the arm unit 34 moves (moves forward) from left to right.
In step S6, the CPU 366 determines whether or not the driving time of the first driving unit 33 has exceeded the second predetermined time. If the driving time is less than the second predetermined time, the CPU 366 continues to drive the first driving unit 33 as it is. If the second predetermined time is exceeded, the process proceeds to step S7. The second predetermined time is set to a time shorter than the first predetermined time, and in particular, is set to a time from when the arm portion 34 starts to move forward until it passes through a half point of the forward movement and before finishing the forward movement. It is preferable that
In step S <b> 7, the CPU 366 controls the second drive unit 37 while rotating the first drive unit 33 to rotate the suction unit 35. By this rotation, the adsorption strength of the adsorption unit 35 changes when the adsorption unit 35 is separated from the page P, and the adsorption unit 35 can be reliably separated from the page P. Furthermore, as shown in FIG. 12, during the forward movement, the arm portion 34 rotates clockwise (arrow Y1). In order to further improve the separation performance, it is preferable that the second drive unit 37 rotates the suction unit 35 in the direction opposite to the swing of the arm unit 34, that is, counterclockwise.

In step S8, the CPU 366 determines whether or not the driving time of the first driving unit 33 has exceeded the first predetermined time. If the driving time is shorter than the first predetermined time, the first driving unit 33 and the second driving unit 37 are left as they are. If the first predetermined time is exceeded, the process proceeds to step S9.
In step S <b> 9, the CPU 366 stops the first drive unit 33 and the second drive unit 37. Within the period during which the second drive unit 37 is rotating, the page P is separated from the suction unit 35, whereby the suction unit 35 is arranged in a state separated from the page P at a position away from the page P at the turning destination position. Will be. At this position, the suction part 35 and the arm part 34 are out of the angle of view of the camera 22 (see FIG. 2A).
FIG. 13 shows the drive timing of the first drive unit 33 and the second drive unit 37 for the turning operation for one page.
Here, an example in which the drive end timing of the second drive unit 37 is the same as the drive end timing of the first drive unit 33 is described, but the drive end timing of the second drive unit 37 is set to be the same as that of the first drive unit 33. It may be made earlier than the drive end timing.

In step S <b> 10, the CPU 366 outputs a page turning completion signal to the personal computer 4.
In step S11, the personal computer 4 controls the camera 22 based on the input page turning completion signal, and images the currently opened page P (spreading state). At this time, since the suction part 35 and the arm part 34 are separated from the angle of view of the camera 22, only the currently opened page P is imaged. Image data captured by the camera 22 is numbered for each image and recorded in the recording unit 41 of the personal computer 4.
In step S12, the CPU 366 determines whether or not the stop switch 365b has been operated. If it has not been operated, the process proceeds to step S2, and if it has been operated, the page turning process is terminated. Thereby, the page turning operation and the imaging operation are repeated, and the imaging of the desired page P is completed.

  As described above, according to the present embodiment, the drive shaft 32 of the first drive unit 33 is inclined with respect to the binding b2 of the opened book B and / or is inclined with respect to the horizontal plane. Therefore, it is possible to perform the turning operation of the page P and the separation operation from the page P by the suction portion 35 only by driving the first driving portion 33 and swinging the arm portion 34. Thus, the operation of separating and turning the pages P of the book B can be realized by one operation, and the page turning speed can be increased.

Further, when the book B is viewed from above, the position of the suction unit 35 when separating from the page P at the turning destination position is more than the position of the suction unit 35 when sucking the page P at the turning source position. If it is shifted to the outside, the distance between the binding b2 and the suction portion 35 can be increased in the second half of the page turning, and the suction portion 35 can be easily separated from the page P.
Further, if the swing symmetry axis of the arm portion 34 is inclined with respect to the binding b2 of the book B so that the base end portion is on the page turning original position side of the page P, the binding is performed in the latter half of the page turning. The distance between the eye b2 and the suction part 35 can be increased, and the suction part 35 can be easily separated from the page P.

Further, the distance from the suction part 35 to the binding b2 is set so that the distance when the suction part 35 passes over the binding b2 is shorter than when the suction part 35 is suctioned to the page P at the turning origin position. In the middle of turning pages, the suction portion 35 approaches the binding b2. As a result, the page P is slackened moderately during the page turning, and the page turning operation can be made smooth.
Further, if the driving locus plane of the suction unit 35 by the first driving unit 33 is inclined with respect to the plane including the left-right direction of the book B and the vertical normal of the book B, the page is turned halfway. The suction part 35 comes closer to the stitch b2. As a result, the page P is slackened moderately during the page turning, and the page turning operation can be made smooth.

  Further, since the suction portion 35 has the adhesive member 352 that sticks to the page P, the suction portion 35 can be easily sucked to the page P with a simple configuration.

In addition, since the page turning device 3 is provided in the document camera system 1 provided with the camera 22 for taking an image of the page P of the book B, it is possible to reliably take an image of each page P while turning the page P automatically. It becomes.
Further, when the page P is captured by the camera 22, the arm unit 34 is out of the angle of view of the camera 22, so that the arm unit 34 is prevented from being reflected in the captured image, and a suitable captured image is obtained. can do.

  Further, since the second drive unit 37 that rotates the suction unit 35 with respect to the arm unit 34 is provided, the suction unit 35 is driven by driving the second drive unit 37 when the suction unit 35 is separated from the page P. Can be rotated. As a result, it is possible to apply an assisting force when separating the suction portion 35 from the page P, and to improve the certainty of the turning operation including the separation operation of the page P.

Moreover, since the adsorption | suction part 35 is rotating so that adsorption | suction intensity | strength of the adsorption | suction part 35 may be changed when separating the adsorption | suction part 35 from the page P, when adsorption | suction part 35 rotates, adsorption | suction intensity | strength can be weakened and it is more reliable. It is possible to separate the suction portion 35 from the page P.
Further, when separating the suction portion 35 from the page P, the suction portion 35 rotates in a direction opposite to the rotation direction of the swinging of the arm portion 34, so that the suction strength is surely weakened when the suction portion 35 rotates. It can be appropriately separated from page P.

  Further, since the rotation of the adsorption unit 35 is stopped when the adsorption unit 35 is adsorbed on the page P, the adsorption intensity of the adsorption unit 35 with respect to the page P is most stable, and the adsorption unit 35 is surely connected to the page P. Will be absorbed.

In addition, since the rotary roller 351 having the adhesive member 352 is detachably attached to the periphery, it can be replaced with another adhesive member 352 having different adhesive strength.
Moreover, since the rotation roller 351 is formed of an elastic body, the rotation roller 351 can be easily attached to and detached from the drive shaft 39 of the second drive unit 37. Therefore, the adsorption part 35 can be easily replaced.
Further, since the adhesive member 352 has a double-sided adhesive structure, it can be easily wound around the rotating roller 351, and the adhesive force of the outer peripheral surface can also be exhibited reliably.
Since the adhesive member having a double-sided adhesive structure is provided with perforations at predetermined lengths, the adhesive member 352 can be easily peeled off from the rotating roller 351 by using the perforation as a trigger, and the adhesive force of the suction portion 35 Can be revived easily.

  Moreover, since the adsorption | suction part 35 is detachable with respect to the arm part 34, it can be easily replaced | exchanged for the adsorption part with another different adhesive force, or an adsorption part with a different radius.

Note that the present invention is not limited to the above embodiment, and can be modified as appropriate.
For example, if the suction unit 35 is rotated once when the suction unit 35 is separated from the page P, the same portion as the previous suction is suctioned to a new page P at the next suction. If the page turning operation is repeated, only a specific part of the suction portion 35 is attracted to the page P, and the decrease in the adhesive force is also accelerated. For this reason, when adsorbing the adsorbing part 35 on the page P, it is preferable that the adsorbing part 35 is rotated just before the adsorption. Thereby, since the adsorption | suction position of the adsorption | suction part 35 with respect to the page P is changed, adhesive force can be maintained over a long term.
Furthermore, it is possible to repeat adsorption / separation a predetermined number of times even at the same adsorption position. Therefore, for example, the page turning frequency is stored in the RAM 364 so that the page turning frequency is measured. If the CPU 366 drives the second drive unit 37 based on the measurement result, the page turning frequency is used as a reference. The rotation for changing the suction position can be executed. In this case, the RMA 364 is a measurement unit according to the present invention.
Further, the number of repetitions of adsorption / separation at the same adsorption position can be examined in advance, and the number can be set as a predetermined number in advance. In this case, the CPU 366 performs the next rotation for changing the suction position when the page is turned a predetermined number of times or more after the second drive unit 37 is driven and the suction portion 35 is rotated for changing the suction position. To do. Thereby, adhesive force can be maintained over a longer period.

In the above embodiment, the case where the suction portion 35 includes the adhesive member 352 and is adsorbed on the page P due to the adhesiveness of the adhesive member 352 has been described as an example. However, the adsorption portion is adsorbed on the page P by suction or the like. It is also possible to make it. In this case, for example, a communication hole that communicates with the internal space is formed on the peripheral surface of the adsorption portion, and the internal space of the adsorption portion and the pump are communicated to drive the pump to a negative pressure. On the other hand, a suction force acts. Using this suction force, the page P can be adsorbed to the adsorbing portion.
In addition to suction and adhesion, adsorption by electrostatic adsorption can be applied to the adsorption unit.

  Moreover, in the said embodiment, although the case where the drive shaft 39 of the 2nd drive part 37 was arrange | positioned along the direction orthogonal to the longitudinal direction of the arm part 34 was illustrated and demonstrated, in FIG. As shown, the second drive unit 37 may be arranged so that the drive shaft 39 extends along the longitudinal direction of the arm unit 34. In this case, since the rotation axis of the suction portion 35 is also along the longitudinal direction, the overall size of the arm portion 34, the second drive portion 37, and the suction portion 35 can be made compact.

Although several embodiments of the present invention have been described, the scope of the present invention is not limited to the above-described embodiments, but includes the scope of the invention described in the claims and equivalents thereof.
The invention described in the scope of claims attached to the application of this application will be added below. The item numbers of the claims described in the appendix are as set forth in the claims attached to the application of this application.

[Appendix]
<Claim 1>
A page turning device for turning a page of a book,
An adsorbing part that adsorbs or separates the pages of the opened book;
In order to have the suction part at the leading end, to suck the suction part to the page at the page turning origin position, and to separate the suction part from the page at the page turning destination position, An arm portion that swings to reciprocate the suction portion above the page at the turning point position;
A first drive unit that swings the arm unit about a drive shaft;
A page turning apparatus comprising: a second drive unit that rotates the suction unit with respect to the arm unit.
<Claim 2>
In the page turning apparatus according to claim 1,
The page turning device, wherein the second driving unit rotates the suction unit so as to change a suction strength of the suction unit when the suction unit is separated from the page.
<Claim 3>
In the page turning apparatus according to claim 2,
The page turning device, wherein the second driving unit rotates the suction unit in a direction opposite to the swing of the arm unit when the suction unit is separated from the page.
<Claim 4>
In the page turning apparatus according to claim 2 or 3,
The page turning apparatus, wherein the second driving unit stops rotation of the suction unit when the suction unit is suctioned to the page.
<Claim 5>
In the page turning apparatus as described in any one of Claims 2-4,
The page turning apparatus, wherein the second driving unit rotates the suction unit so that a suction position of the suction unit with respect to the page is changed.
<Claim 6>
In the page turning apparatus according to claim 5,
A measuring unit for measuring the number of page turning times;
The page turning device, wherein the second drive unit rotates the suction unit based on a measurement result of the measurement unit.
<Claim 7>
The page turning apparatus according to claim 6,
The page turning apparatus, wherein the second drive unit rotates the suction unit when a measurement result of the measurement unit is equal to or greater than a predetermined number of times.
<Claim 8>
In the page turning apparatus according to any one of claims 1 to 7,
The page-turning device, wherein the suction unit includes an adhesive member that adheres to the page.
<Claim 9>
The page turning apparatus according to claim 8,
The page-turning device, wherein the suction portion includes a rotation roller having the adhesive member detachably attached to the periphery.
<Claim 10>
In the page turning apparatus according to claim 9,
The page turning apparatus, wherein the rotating roller is formed of an elastic body.
<Claim 11>
In the page turning apparatus according to claim 9 or 10,
The page turning apparatus, wherein the adhesive member has a double-sided adhesive structure.
<Claim 12>
In the page turning apparatus according to claim 11,
The page turning apparatus according to claim 1, wherein the adhesive member having the double-sided adhesive structure is provided with perforations at predetermined lengths.
<Claim 13>
In the page turning apparatus as described in any one of Claims 1-12,
The page turning device characterized in that the suction part is detachable from the arm part.
<Claim 14>
In the page turning apparatus as described in any one of Claims 1-13,
The page turning apparatus according to claim 1, wherein a rotation axis of the suction portion is along a longitudinal direction of the arm portion.
<Claim 15>
A page turning apparatus according to any one of claims 1 to 14,
A document camera system comprising imaging means for imaging the page of the book.
<Claim 16>
The document camera system according to claim 15, wherein
A document camera system, wherein when the image is picked up by the image pickup means, the arm portion is out of an angle of view of the image pickup means.

1. Document camera system 2. Document camera (imaging means)
3 page turning device 4 personal computer 21 stand unit 22 camera 31 pedestal 32 drive shaft 33 first drive unit 34 arm unit 35 suction unit 36 control unit 37 second drive unit 39 drive shaft 41 recording unit 11 main base unit 312 sub base unit 313 Rotating plate 351 Rotating roller 352 Adhesive member 356 Perforated line B book b2 Binding line P page

Claims (16)

A page turning device for turning a page of a book,
An adsorbing part that adsorbs or separates the pages of the opened book;
In order to have the suction part at the leading end, to suck the suction part to the page at the page turning origin position, and to separate the suction part from the page at the page turning destination position, An arm portion that swings to reciprocate the suction portion above the page at the turning point position;
A first drive unit that swings the arm unit about a drive shaft;
A page turning apparatus comprising: a second drive unit that rotates the suction unit with respect to the arm unit. In the page turning apparatus according to claim 1,
The page turning device, wherein the second driving unit rotates the suction unit so as to change a suction strength of the suction unit when the suction unit is separated from the page. In the page turning apparatus according to claim 2,
The page turning device, wherein the second driving unit rotates the suction unit in a direction opposite to the swing of the arm unit when the suction unit is separated from the page. In the page turning apparatus according to claim 2 or 3,
The page turning apparatus, wherein the second driving unit stops rotation of the suction unit when the suction unit is suctioned to the page. In the page turning apparatus as described in any one of Claims 2-4,
The page turning apparatus, wherein the second driving unit rotates the suction unit so that a suction position of the suction unit with respect to the page is changed. In the page turning apparatus according to claim 5,
A measuring unit for measuring the number of page turning times;
The page turning device, wherein the second drive unit rotates the suction unit based on a measurement result of the measurement unit. The page turning apparatus according to claim 6,
The page turning apparatus, wherein the second drive unit rotates the suction unit when a measurement result of the measurement unit is equal to or greater than a predetermined number of times. In the page turning apparatus according to any one of claims 1 to 7,
The page-turning device, wherein the suction unit includes an adhesive member that adheres to the page. The page turning apparatus according to claim 8,
The page-turning device, wherein the suction portion includes a rotation roller having the adhesive member detachably attached to the periphery. In the page turning apparatus according to claim 9,
The page turning apparatus, wherein the rotating roller is formed of an elastic body. In the page turning apparatus according to claim 9 or 10,
The page turning apparatus, wherein the adhesive member has a double-sided adhesive structure. In the page turning apparatus according to claim 11,
The page turning apparatus according to claim 1, wherein the adhesive member having the double-sided adhesive structure is provided with perforations at predetermined lengths. In the page turning apparatus as described in any one of Claims 1-12,
The page turning device characterized in that the suction part is detachable from the arm part. In the page turning apparatus as described in any one of Claims 1-13,
The page turning apparatus according to claim 1, wherein a rotation axis of the suction portion is along a longitudinal direction of the arm portion. A page turning apparatus according to any one of claims 1 to 14,
A document camera system comprising imaging means for imaging the page of the book. The document camera system according to claim 15, wherein
A document camera system, wherein when the image is picked up by the image pickup means, the arm portion is out of an angle of view of the image pickup means.

Images