JP3441555B2 - Book manuscript reading device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a book manuscript reading device such as a copying machine, a facsimile, and a scanner having a page turning function for automatically turning pages of a book manuscript.

[0002]

2. Description of the Related Art Recently, various book manuscript readers have been developed which are constructed so that after manuscript information of a book manuscript is read, the manuscript pages which have been read are automatically turned. One type of this book document reading device is one in which the reading page surface of a book document is opened, the book document is opened and placed on the document table, and the document surface is placed against the document surface of the book document that is opened and placed. By contacting and reciprocating a page-turning reading unit including a document-reading unit for reading and scanning information and a page-turning unit for turning pages of the document,
2. Description of the Related Art A book document reading device is known which scans the document information of the book document and separates the read document pages one by one to perform page turning.

[0003]

By the way, in the conventional book document reading device, a pair of left and right document tables for mounting and fixing the left and right spine covers of the opened book document are provided.
Since each of them can only be moved in the vertical direction, the distance between the left and right document holders is fixed to the maximum value (MAX value) of the thickness of the book document which is readable according to the specifications. Therefore, in this conventional book document reading device, the method of supporting the book document is different between the case of reading a thin book document and the case of reading a thick book document, and the read image varies. There is a risk that the support portion of the book document may be damaged. The present invention has been made in view of the above points, and an object thereof is to set a book document in the same state without being affected by the thickness of the book document and to enable reading of the document. An object is to provide a document reading device.

Further, in the above-mentioned conventional book original reading apparatus, since the cover is not pulled while the book original is fixed, the position of the original surface of the book page is different between the first page and the last page of the book original. There were some children who drastically changed and image variations and irregularities occurred. Another object of the present invention is to provide a book document reading device capable of excellently reading from the first page to the last page of one book document.

Here, in the case where a slide mechanism with a support plate is provided on the document table and the cover is pulled while the book document is fixed, there is rattling between the document table and the support plate and the document table when sliding. The problem with the support plate was a problem. It is still another object of the present invention to provide a book document reading device that can smoothly slide the document table on the support plate.

Further, in the conventional book document reading apparatus, since the opening / closing fulcrum of the fixing plate for fixing the back cover of the book document is fixed on the document table, the cover of the book document is too thick. , The fixing plate cannot or cannot be locked on the document table.
Since the holding force of the fixing plate for the cover differs between the lock part and the fulcrum part, stress may be applied to a specific part of the cover and the cover may be damaged, or if the cover is thin, the cover may not be fixed securely. there were. Still another object of the present invention is to provide a book document reading apparatus which can press the entire cover with a fixing plate without applying stress to a specific portion of the cover.

In the conventional book document reading apparatus, the central portion of the fixing plate is bent while the cover of the book document is sandwiched between the document table and the fixing plate and the fixing plate is locked on the document table. Due to the gap, there is a problem that holding of a small-sized book document becomes uncertain. Still another object of the present invention is to provide a book document reading device that can reliably hold a book document regardless of its size.

Further, in the above-mentioned conventional book document reading apparatus, since the lock pin (locking shaft) for locking the fixing plate with respect to the document table is fixed, the thickness of the cover that can be held on the document table. Was limited to a narrow range. Still another object of the present invention is to provide a book document reading device that can reliably hold a book document regardless of the thickness of the cover.

Further, in the conventional book document reading apparatus, since the lock release lever for releasing the lock between the document table and the fixed plate is not provided on the fixed plate side, the lock between the document table and the fixed plate is released. Since the operation and the opening / closing operation of the fixing plate are separated, a complicated operation is required when the book document is taken out from the document table. Still another object of the present invention is to
It is an object of the present invention to provide a book document reading device having excellent operability, which can perform an unlocking operation of a document table and a fixing plate and an opening / closing operation of the fixing plate in one operation.

Further, in the conventional book document reading apparatus, since the positioning means for positioning the book document in the main scanning direction is provided on the document table side, the reference position of the document may be displaced when the fixing plate is locked. However, there is a problem that the positioning property and workability are deteriorated. It is still another object of the present invention to provide a book document reading device which is excellent in positioning and workability of a book document in the main scanning direction.

[0011]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention makes contact with a book document that is opened and placed on a document table and reciprocates to read and scan document information. And page turning of the original,
In a book manuscript reading device having a manuscript reading unit, a manuscript table on which the book manuscript is placed, a pair of manuscript tables on which left and right pages of the opened book manuscript are respectively independently mounted, and on the manuscript table. A pair of fixing plates for sandwiching and fixing the backstrip of the placed book originals with the original placing table, and an original placing table which is arranged under one of the original placing tables and slidably supports the original placing table in the reading sub-scanning direction. A support plate and a rotatable roller arranged on the document table support plate
And the originals that move the pair of document trays up and down independently.
Is composed of a draft platform lift mechanism, to said pair of original table
And the pair of fixing plates are arranged so as to be openable and closable.
Set the open / close fulcrum of the pair of fixing plates to the thickness direction of the spine of the book original.
And the opening / closing fulcrum of the fixed plate.
Position, the fixing plate presses the spine of the book original with elasticity.
A member is provided .

Further, the back cover of a book original is fixed between the original document table supporting plate and the original document table slidably supported on the original document table supporting plate while the book original document is fixed on the original document table. The elastic member on which the restoring force acts in the direction of pulling the spine cover is attached.

Further , both the pair of fixing plates and the document table are provided.
On one side or the other, rubber with a large surface friction coefficient or
A sheet member made of resin, etc.
To absorb the deformation of the fixing plate when fixing the spine cover
The thickness of the sheet member is changed and affixed.

Further, the fixing plate is locked to the document table.
Has a fixed plate locking mechanism,
A hook portion having an inclined portion provided on the fixing plate;
A locking shaft that locks the hook to the writing table and a reading
Provided on the document table that guides the locking shaft in the sub-scanning direction.
Fixed guide hole and a plate for fixing the locking shaft along the guide hole
Elastic member that pulls in the locking direction and tension of the elastic member
Unlocking ring that moves the locking shaft in the opposite direction
And a release link serving as a fulcrum of rotation of the lock release link
The shaft and the unlocking link in the pulling direction of the elastic member
And the locking shaft by pressing in the opposite direction to
Lock release cam and lock release lever to release the engagement with
It is configured with a bar and.

Further , the lock release cam and the lock release
The lever is provided on the fixed plate side.

The position of the book document in the main scanning direction
The document positioning means for determining the fixed plate side
The configuration provided in.

[0017]

[0018]

[0019]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 shows the overall configuration of a book document reading apparatus having a page turning function according to the present invention.

In FIG. 1, the document table 13 is constructed so that it can be pulled out toward the front side of the apparatus main body, and the book document 14 is turned over while the document table 13 is pulled out to the front of the apparatus. The manuscript page is opened and placed on the elevating tables 13a and 13b which are vertically movable with respect to the unit 15.

The elevating tables 13a and 13b make the left and right page surfaces of the opened book original 14 flush with each other according to the thickness of the placed book original 14 and the difference in the page amount between the left and right opened original pages. It is configured to move up and down independently of each other so as to be positioned at.

Book originals 14 are placed on the elevators 13a and 13b.
When the original table 13 is pushed into the main body of
The book document 14 slides right under the page turning reading unit 15 waiting in the center of the apparatus body.

In this state, an elevator table drive mechanism (not shown) is operated, and each elevator table 13 is pressed until the left and right document pages of the book document 14 are pressed against the lower surfaces of the pressing sheets 37 and 38.
a and 13b are independently raised.

The page turning reading unit 15 is provided with a document reading means 17 and a page turning means 18, and the timing belt 1 is driven by a driving motor 22.
It is reciprocally moved along the document page surface of the book document 14 via 9.

At this time, the respective press sheets 37, 38 are wound by the respective winding rollers 39, 44 in such a direction that they are stretched by the respective winding rollers 39, 44 so as not to be tensioned or loosened by the movement of the page turning reading unit 15. Thus, the left and right document pages of the book document 14 are constantly pressed by a predetermined pressure.

FIG. 2 shows the configurations of the document reading means 17 and the page turning means 18 provided inside the page turning reading unit 15. In FIG. 2, when the page turning reading unit 15 scans and moves from the left end to the right end in FIG. 1, light sources (fluorescent lamps) 30a and 30b that illuminate the book document reading unit 32 and mirrors 26, 27 and 31. ,
A document reading unit 17 including a lens 28 and a reduction optical system including a reading element (CCD substrate) 29 and the like reads and scans image information on the opened document page surface of the book document 14.

Further, the document reading means 17 of this embodiment
Is placed on the contact glass 12 at the upper part of the main body of the apparatus shown in FIG. 1 by interposing the optical path switching mirror 25, which is standing by at the position shown by the broken line in FIG. The image information of the formed sheet document (not shown) can also be read. When reading the image information of the sheet document, a light source (fluorescent lamp) 24 is used as a means for illuminating the sheet document reading unit 23.
a and 24b are used.

On the other hand, the page turning reading unit 15
When moving from the right end to the left end in FIG. 1, the page turning means 18 performs the page turning operation of the document pages of the book document 14.

The page turning means 18 of this embodiment is shown in FIG.
As shown in FIG. 5, the page turning reading unit 15
A driving roller 34 and a driven roller 35 provided therein,
A turning belt 33 wound around the driving roller 34 and the driven roller 35 to adsorb the original page located on the upper surface of the book original 14 and conveys the original page in the page turning direction, and the driving roller 34 as a fulcrum. A belt moving means (not shown) for moving the original page suction surface of the turning belt 33 from a horizontal position for moving the driven roller 35 to pick up the original page to an inclined position for lifting the original page, and an original for the turning belt 33. The turning belt unit is composed of a charging roller 36 arranged so as to be in contact with the attracting surface, and an AC power supply 66 for applying an AC voltage to the charging roller 36.

Here, the turning belt 33 has a high resistance layer having a low volume efficiency of 10 ¹⁵ or more on the front surface and a volume resistivity of 10 ^{5 on the} back surface.
The endless belt is made of synthetic resin or synthetic rubber having a two-layer structure consisting of a medium resistance layer of 10 ⁷ Ωcm.

As shown in FIG. 3, the charging roller 36 has a shaft connected to a high-voltage AC power source 66, and the roller portion covering the shaft has a volume resistivity of about 10 ⁷ to 10 ⁹ Ωcm. It is composed of hydrin rubber.

Further, the drive roller 34 is composed of a highly conductive rubber roller whose shaft is grounded.

In FIG. 3, when the page turning reading unit 15 moves from the right end side to the left end side in FIG. 1, the rack 56 arranged in parallel with the moving direction of the page turning reading unit 15 and the rack 56. By the idle gear 57 pivotally supported by the page turning reading unit 15 so as to mesh with each other and the drive gear 58 fixed to the support shaft of the driving roller 34, the turning belt 33 moves at the same speed as the moving speed of the page turning reading unit 15. Then, it is rotated counterclockwise.

While the page turning reading unit 15 is moving at a constant speed, a high voltage having a constant frequency is applied to the charging roller 36, so that the surface of the turning belt 33 has positive and negative stripes. Charge pattern is formed. For example, the page turning reading unit 15
When the moving speed is 240 mm / sec and the frequency of the AC power supply 66 is 60 Hz, a charging pattern having a cycle of 4 mm is formed on the surface of the turning belt 33.

Then, the page turning reading unit 15 is moved so that the predetermined width of the right page end portion of the book original 14 becomes
When the document attracting surface of the turning belt 33 is applied, only one document page of the book document 14 is attracted to the document attracting surface of the turning belt 33 by the attracting force of the uneven electric field of the charging pattern.

Thereafter, as shown in FIG. 4, the driven roller 35 is moved by the belt moving means with the driving roller 34 as a fulcrum, and the turning belt 33 is moved from the horizontal position for picking up the original page to the inclined position for lifting the original page. The document suction surface of is moved.

The manuscript page thus sucked and separated is
By the movement of the page turning reading unit 15, while being attracted to the turning belt 33, along the guide plate 52,
The sheet is once discharged to the outside of the page turning reading unit 15 by the conveying rollers 53 and 54.

After that, when the page turning reading unit 15 further moves and passes through the central part of the book document 14, the driving of the feeding roller 53 is cut off, and the feeding roller 53 moves to the outside of the page turning reading unit 15. The right page of the book original 14 once ejected is naturally ejected onto the left original page surface of the book original 14 to turn the page.

Next, the document trays 13a and 13b in the embodiment of the book document reading device according to the present invention will be described in more detail with reference to FIGS. 5 to 9, fixed plates 101a and 101b are the original table 102.
The cover of the book manuscript 14 is sandwiched between a and 102b, and the hook portions 101a-1 and 101b-1 are locked to the locking shafts (lock shafts) 103a and 103b, respectively. Locked on 102a, 102b.

The fixed plates 101a and 101b are rotated by supporting fulcrums 104a and 104b, respectively.
The lock release cam 105 and the lock release lever 10 are arranged so as to be openable and closable with respect to 102b, and are incorporated in the respective hook portions 101a-1 and 101b-1.
6 (one of which is not shown), the document table 102a, 1
The lock on 02b is released.

The document table 102b on the right side of this embodiment is provided with a guide screw 10 on a support plate 107 by means of step screws 108.
It is mounted slidably along 2b-1, and a roller 109 is rotatably arranged on the support plate 107 in order to smooth the movement. Thus, by making one of the document holders slidable, it is possible to hold documents in the same state from a thick book document to a thin book document, and reduce the influence of the thickness of the book document on the image. You can

Further, as shown in FIG. 5A, an elastic member (in this case, a tension member) hooked on hooks 102b-2 and 107-1 is provided between the document table 102b and the support plate 107 of this embodiment. Spring) 110 is arranged, and when the document table 102b is slid in the direction of arrow A in FIG. 5A, the elasticity of the tension spring 110 causes
A force acts to pull back the document table 102b in the direction opposite to the arrow A direction in FIG. Therefore, in the present embodiment, when the book original 14 is held by the original table 102b, the spine of the book original is pulled and the reading surface is kept horizontal, so that from the first page to the last page of one book original. Stable reading can be performed.

Next, the lock mechanism and the lock release mechanism of the fixed plates 101a and 101b will be described in detail. Figure 6
Further, as shown in FIG. 7, the lock shaft 103b is attached so as to be movable along a guide hole 102b-3 provided in the document table 102b. Also, the lock shaft 103b
Is an elastic member (here, a tension spring) 111b
Is always pulled in the direction of arrow B in FIG.

When the fixed plate 101b descends about the rotation fulcrum 104b, the slope 101b-2 of the fixed plate 101b contacts the lock shaft 103b, and the lock shaft 103b forms the slope 101b.
-2 to move in the direction opposite to the arrow B direction and pass the apex of the slope 101b-2, so that the locking slope 10
1b-3 is engaged and locked.

Here, the locking slope 101 of the fixed plate 101b
When the lock shaft 103b is pressed against b-3 by the elastic member 11b, a force for pressing the fixing plate 101b downward acts, and the cover 14b of the book original 14 is securely fixed.

According to this structure, even if the cover sheet 14b is thick, the lock shaft 103b is locked at the position moved to the left as shown in FIG. 14b according to the vertical height of the
It is possible to securely lock both thick and thin book originals.

When the lock of the fixed plate 101b is released, the lock release cam 10 attached to the fixed plate 101b is used.
5 and the lock release lever 106 are rotated in the direction of arrow C in FIG. As a result, the cam portion 105a of the unlocking cam 105 is fixed to the shaft 112b so as to rotate about the shaft 112b serving as a fulcrum.
The link 113b of b and 114b is pushed, this link 113b is rotated in the direction of arrow D, and the lock shaft 10
3b is moved in the direction opposite to the arrow B direction, and the lock is released.

Further, when the lock release lever 106 is further lifted while the lock is released, the fixing plate 101b is opened. Therefore, in the present embodiment, the lock releasing operation and the unlocking operation of the fixed plate 101b can be continuously performed by only one operation of lifting the lock releasing lever 106.

The above-mentioned lock mechanism is provided on the left side of the document table 13a.
The same applies to the lock mechanism of the document table 13b.

On the other hand, the opening / closing fulcrum of the fixed plates 101a and 101b is constructed as shown in FIG. 8 (only the fixed plate 101b is shown here). In FIG. 8, a U-shaped guide groove 102b provided on the document table 102b.
-4, a bearing 115b is attached so as to be slidable up and down along the guide groove 102b-4, and an elastic member (here, a compression spring) 116b is mounted on the bearing 115b so as to push down the bearing 115b. Is installed. By attaching the step screw 117b to the screw hole 101b-4 of the fixed plate 101b through the step screw 117b through the bearing 115b, the rotation fulcrum of the fixed plate 101b is given the habit of being pushed downward.

With such a structure, the fixing plate 1 can be used for both thick and thin book originals.
The cover can be pressed by both the rotation fulcrum part of 01b and the lock part, and the cover cover can be reliably pressed.

On the other hand, as shown in FIG.
A spacer 118b made of rubber or synthetic resin and having a large friction coefficient on the surface is attached to 01b. Further, when the fixing plate 101b is closed, other spacers 119b, 120b, 121b made of the same rubber or synthetic resin as the spacer 118b are attached to the position of the document table 102b facing the spacer 118b. Has been.

Here, these spacers 119b, 12
The thicknesses of 0b and 121b are set so that the spacer 119b near the center of the document table 102b is thickest and becomes thinner gradually toward the end. In this embodiment, the spacer 119b has a thickness (height from the surface of the document table 102b) of 1.5 mm, and the spacer 120b has a thickness of 1 mm.
The thickness of the spacer 121b is set to 0.5 mm.

With this structure, the fixed plate 1
When 01b is closed and locked, the lowering of the cover holding function due to the lifting of the central portion caused by the bending of the fixing plate 101b can be corrected, and the friction of the surface of each spacer can cause the displacement of the cover 14b of the book original 14 and the like. It can be prevented from falling off.

The above-mentioned opening / closing fulcrum and each spacer are configured in the same manner as the opening / closing fulcrum and each spacer of the document table 13b for the left document table 13a.

Further, in the present embodiment, as described above, the spacers 119b, 120b, 121b having different thicknesses are arranged on the document table 102b, but these spacers 119b, 120b, 121b are fixed. Board 10
It may be arranged on the side of 1b, or each spacer may be arranged on both the fixing plate 01b and the document table 102b.

Further, in this embodiment, as shown in FIG.
The positioning means, which serves as a positioning reference for the book document 14 when setting the book document 14, is composed of an abutting portion 101b-5 formed by bending a part of the fixing plate 101b downward, and the abutting portion 101b. -5 for book manuscript 14
The book document 14 is positioned by abutting the edge of the cover sheet 14b. As described above, in the present embodiment, the positioning means serving as the positioning reference of the book original 14 when setting the book original 14 is formed integrally with the fixing plate 101b, so that this positioning means needs to be formed as a separate member. Therefore, it is possible to improve the setting property of the book document 14.

By the way, the pressing sheet 3 for the book original 14
As shown in FIG. 13, the attachment of Nos. 7 and 38 to the apparatus is performed by inserting the attachment shaft 201 for attaching the sheet into the cylindrical portion formed at the end of the pressing sheets 37 and 38, and attaching the attachment shaft 20.
Both end portions of No. 1 were fixed to the seat mounting stay 202. However, it is difficult to uniformly apply tension to the entire holding sheets by the conventional attaching method of the holding sheets 37 and 38. Therefore, in this method, the pressing sheets 37 and 38 are loosened, and when the book document 14 is taken in and out, the pressing sheets 37 and 38 are caught in the documents, and the documents are damaged. Further, since the pressing sheets 37 and 38 are slack, by being wound by the winding rollers 39 and 44,
There is a drawback that the positions of the pressing sheets 37 and 38 are gradually displaced, the side portions of the pressing sheets 37 and 38 come into contact with other parts inside the structure, and the sheets themselves are damaged.

Therefore, in the embodiment of the present invention, these problems can be solved, a uniform tension can be applied to the entire sheet, and the pressing sheet 3 by sheet winding can be applied.
(EN) Provided is a method of attaching a holding sheet capable of eliminating the unevenness of 7, 38.

That is, in the present embodiment, in order to solve the above-mentioned problems, in the book document reading device, the book document is provided at the end portions of the press sheets 37 and 38 of the book document which are opened and placed at the document reading position. The seat mounting shaft is mounted on the structure through an elastic member.

Further, in the present embodiment, the mounting shaft for mounting the seat is mounted on the structure through the elastic member, and the guide is provided so that the mounting shaft can be slid horizontally in the reading and scanning direction. .

Further, a winding roller for winding the pressing sheet, which is provided at an end portion on the winding side of the pressing sheet,
The structure is provided with a member for preventing the sheet from shifting.

The structure for attaching the holding sheet in this embodiment will be described below. In FIG. 1, when the page turning reading unit 15 performs reading scanning, the pressing sheet 37 wound around the winding roller 39 is fed out via the drive pulley 20a and the gear 43, and
Presser sheet 38 attached to take-up roller 44
Is wound around the driven pulley 20b and the gear 49.

As shown in FIG. 10, the holding sheet mounting structure according to the present embodiment has a mounting shaft 201 for seat mounting on a tubular portion formed at the end portions of the holding sheets 37 and 38.
And the mounting shaft 201 is mounted on the structure via an elastic member (here, a tension spring) 203.

Further, the mounting shaft 201 for seat mounting in the present embodiment has the mounting shaft 20 in the long groove 204a of the guide 204 mounted on the apparatus main body (structure).
Both ends of 1 are supported so as to be horizontally slidable in the reading and scanning direction.

On the other hand, the other ends of the pressing sheets 37 and 38 are connected to the rollers 42, 47 and 4 of the page turning reading unit 15.
8 and the take-up rollers 39 and 44 via the drive rollers 41 and 46 of the main body. Here, the take-up rollers 39 and 44 in this embodiment are the same as those shown in FIGS.
As shown in FIG. 2, a holder 39a (44) for seat attachment is attached to the tubular portion formed at the other end of the pressing sheets 37, 38.
a) is inserted and this holder 39a (44a) is fixed to the winding shaft 39b (44b) of the winding rollers 39, 44, and then the flange 39c (44c) provided with a taper for preventing the sheet from shifting. , Both ends of the holder 39a (44a) and the winding shaft 39b (44b) are sandwiched and fixed from the sides thereof.

Therefore, according to the present embodiment, the pressing sheet 37 for the book document placed open and placed at the document reading position,
A mounting shaft 20 for mounting a seat provided at the end of 38
Since No. 1 is attached to the structure via the elastic member 203, uniform tension can be applied to the entire area of the pressing sheets 37 and 38, and the slack of the pressing sheets 37 and 38 is removed to damage the book original. Can be prevented.

Further, according to the present embodiment, since the guide 204 which allows the mounting shaft 201 for mounting the sheet to be slid horizontally in the reading and scanning direction is provided, the positions of the pressing sheets 37 and 38 in the vertical direction can be adjusted. It is possible to regulate and further reduce the cause of document damage.

Further, according to this embodiment, the pressing sheet 3
Presser rollers 7 and 38, which are provided at the end portions on the winding side, are provided with flanges 39c (44c) as sheet deviation preventing members on the take-up rollers 39 and 44 for sheet winding. The sheets can be prevented from being displaced when the sheets 37 and 38 are wound, and the sheets themselves can be prevented from being damaged by the contact between the side portions of the pressing sheets 37 and 38 and other parts inside the structure.

[0070]

According to the present invention, according to the first aspect of the present invention, since one of the document holders is slidable, it is possible to hold the original in the same state from a thick book original to a thin book original. It is possible to reduce the influence of the thickness of the image on the image.

On the support plate that slides the document table,
Since the roller is rotatably installed,
Id operation can be performed smoothly.

Book manuscript with thick cover and book manuscript with thin cover
In both cases, both the rotation fulcrum part of the fixed plate and the lock part
The cover can be pressed down, and the cover can be pressed down securely.
It

According to a second aspect of the present invention, the book document is stored on the document table.
When held, the spine is pulled and the reading surface is horizontal.
Is maintained at the beginning of a book manuscript.
Stable reading can be performed up to the last page.

[0074] According to claim 3, when closed and locked the fixing plate, can be corrected reduction in cover pressing function by lifting the central portion generated by the deflection of the fixing plate and by the friction of the spacer surface, the book document It is possible to prevent the cover sheet from being displaced or falling off.

According to the fourth aspect , even if the cover has a large thickness, the lock shaft is locked at the position moved to the left, so that the cover has a large thickness depending on the vertical height of the locking slope. It is possible to securely lock a book document or a thin book document.

According to the fifth aspect , the lock releasing operation and the releasing operation of the fixing plate can be continuously performed by only one operation of lifting the lock releasing lever without requiring a complicated operation such as a change of the holding of the lever. it can.

According to the sixth aspect of the invention , since the positioning means serving as a positioning reference for the book original when setting the book original is formed integrally with the fixing plate, it is not necessary to form this positioning means by a separate member, and the book is not required. It is possible to improve the manuscript setting property, and it is possible to keep the manufacturing cost low.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of an embodiment of a book document reading device according to the present invention.

FIG. 2 is a schematic cross-sectional view showing a configuration of a page turning reading unit in the embodiment of the present invention.

FIG. 3 is a schematic perspective view of a page turning unit provided inside the page turning reading unit in the embodiment of the present invention.

FIG. 4 is a schematic side view showing the page turning operation of the page turning means in the embodiment of the present invention.

5A and 5B are a schematic perspective view and a schematic side view showing an overall configuration of an embodiment of a document table in the book document reading apparatus according to the present invention.

FIG. 6 is a schematic side view showing a configuration of a lock mechanism of a fixing plate in the embodiment of the present invention.

FIG. 7 is a schematic side view showing a locked state of the fixing plate according to the embodiment of the present invention.

FIG. 8 is a schematic perspective view showing a configuration of a rotation fulcrum of a fixed plate in the embodiment of the present invention.

FIG. 9 is a schematic perspective view showing a configuration of book document positioning means in the embodiment of the present invention.

FIG. 10 is a schematic perspective view showing a support structure of a press sheet end portion of a book document in the embodiment of the invention.

FIG. 11 is a schematic perspective view showing a support structure of the other end portion of the press sheet for the book original in the embodiment of the present invention.

FIG. 12 is a schematic exploded perspective view showing a support structure of the other end portion of the holding sheet for book originals in the embodiment of the present invention.

FIG. 13 is a schematic perspective view showing a conventional supporting structure of a press sheet end portion of a book original in the book original reading apparatus according to the present invention.

[Explanation of symbols]

13 Document Plates 13a, 13b Elevating Table 14 Book Document 14b Cover 15 Page Turning Reading Unit 17 Document Reading Means 18 Page Turning Means 22 Drive Motor 33 Turning Belt 34 Driving Rollers 35 Driven Rollers 36 Charging Rollers 37, 38 Holding Sheet 60 Conductive Member 61 Insulating member 66 AC power supplies 101a and 101b Fixing plates 101a-1 and 101b-1 Hook portion 101b-2 Slope 101b-3 Locking slope 101b-5 Abutting portions 102a and 102b Original plate 102a-2, 107-1 Hook 102b -3 Guide holes 102b-4 Guide grooves 103a, 103b Locking shafts (lock shafts) 104a, 104b Rotating fulcrum 105 of fixed plate Release cam 105a Cam portion 106 Release lever 107 Support plate 108 Step screw 109 Roller 110 Elastic member (pull) Sp Ring) 111b elastic member (tension spring) 112b shaft 113b, 114b link 115b bearing 116b elastic member (compression spring) 117b stepped screw 118b, 119b, 120b, 121b spacer

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI H04N 5/225 (56) Reference JP-A-7-120846 (JP, A) JP-A-59-41963 (JP, A) Actual Kaihei 5-55146 (JP, U) Actual development Sho 58-170635 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) G03B 27/00-27/80 B42D 9/04 G03G 15/00 107 H04N 1/10 H04N 1/107 H04N 5/225

Claims (6)

(57) [Claims] 1. A book manuscript reading device having a manuscript reading unit for reading and scanning manuscript information and performing a page turning operation of the manuscript by reciprocating while contacting a book manuscript which is opened and placed on a manuscript table. In the apparatus, the document table on which the book document is placed includes a pair of document tables on which the left and right pages of the opened book document are independently placed, and a spine of the book document placed on the document table. A pair of fixing plates for sandwiching and fixing a cover sheet with the original placing table, an original placing table supporting plate disposed below one of the original placing tables and slidably supporting the original placing table in the reading sub-scanning direction, and the original placing table support. A rotatable roller arranged on the board,
A document table that moves the pair of document tables vertically independently.
It is composed of an up-and-down mechanism, and the pair of fixing plates are openably and closably arranged with respect to the pair of document holders, and the opening and closing fulcrum of the pair of fixing plates can be moved in the thickness direction of the back cover of the book document. The book document reading device according to claim 1, further comprising an elastic member for pressing the spine of the book document with the fixing plate at the opening / closing fulcrum portion of the fixing plate. 2. The book original with the spine of the book original fixed on the original table between the original table supporting plate and the original table slidably supported on the original table supporting plate. 2. The book document reading apparatus according to claim 1, further comprising an elastic member attached with a restoring force in a direction of pulling the spine cover. 3. If both the pair of fixing plates and the document table are
On the other hand, rubber or resin with a large surface friction coefficient
The sheet member consisting of
So that the deformation of the fixing plate when absorbing the
The thickness of the support member is changed and affixed.
1. The book original reading device described in 1. 4. A fixing means for locking the fixing plate on the document table.
It has a fixed plate lock mechanism, and the fixed plate lock mechanism fixes the fixed plate.
A hook portion having an inclined portion provided on a plate, and the document table
The locking shaft that locks the hook portion, and the reading sub-scan
That is provided on the document table that guides the locking shaft in the direction
Id hole and how to lock the locking shaft along the guide hole
And an elastic member that pulls in the direction, and a pulling direction of the elastic member.
An unlocking link for moving the locking shaft in the opposite direction,
A release link shaft serving as a fulcrum of rotation of the lock release link,
Set the lock release link in the direction opposite to the pulling direction of the elastic member.
The hook portion and the locking shaft by pressing in the direction
Release cam and lock release lever
The book according to claim 1, characterized in that
Document reader. 5. The lock release cam and lock release lever
Is provided on the side of the fixed plate.
Book original reading device. 6. Positioning of the book document in the main scanning direction
A document positioning means for carrying out is provided on the fixed plate side.
The book document reading device according to claim 1, wherein
Place