JPH0779329A - Book manuscript reader - Google Patents

Abstract

(57) [Abstract] [Object] The present invention relates to a device for reading a book manuscript,
An object of the present invention is to provide a book manuscript reading device capable of smoothing the reciprocating movement of the page-turning reading device while keeping the tension of the holding sheet constant and improving the workability of the attaching work of the holding sheet. There is. [Structure] The other ends of the presser sheets 37, 38 are joined to form a tubular shape, and a shaft 50 is inserted into the tubular parts 37a, 38, and the mounting portions 40, 45 are engaged with the shaft 50. Engaging portions 40a and 40b are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a book manuscript reader, and more particularly, to a book manuscript reader having a page manuscript page turning function and a book manuscript reading function.

[0002]

2. Description of the Related Art Recently, various reading apparatuses have been developed which automatically turn pages of a document after reading information of a book document. In this document, the reading surface of a document is kept open and the document surface is reciprocally moved by the page-turning reading means to separate the pages of the book document one by one and the document information is read. It is designed to read and scan.

The document surface of the document is pressed by the pressing sheet, and the reading means moves on the document surface together with the pressing sheet when reciprocating. An example of a conventional book document reading device of this type is shown in FIG.
In FIG. 7, reference numeral 1 denotes a carriage that constitutes a page turning reading means, and the carriage is reciprocally moved by a moving means (not shown). The carriage 1
Various devices such as a scanning optical system having a page-turning function and a reading function and a page suction device are housed therein, and are arranged so as to face the document surface of a book document that is opened and placed at the document reading position. .

A pressing sheet 2 is provided at both ends of the carriage 1 in the moving direction (indicated by an arrow) (only one side is shown, the other side is not shown) and is opened on the upper surface. The original surface of the book original is pressed to press the original. One end of the pressing sheet 2 is attached to a take-up roller 3 provided in the main body of the reading device, and the take-up roller 3 is driven by a driving means (not shown) to wind the pressing sheet 2 and unwind it. It has become. The other end of the pressing sheet 2 is attached to a mounting portion 4 provided in the reading device body. The mounting portion 4 is provided in the reading device body and extends in the width direction of the pressing sheet 2. A base 5, a double-sided tape 6 provided along the mounting base 5 for adhering the other end of the pressing sheet 2 to the mounting base 5, and a pressing base 7 for pressing the pressing sheet 2 onto the mounting base 7 via the double-sided tape 6.
It consists of and.

A carriage roller 8 is provided on the carriage 1, and the pressing sheet 2 is in sliding contact with the roller 8. Further, a predetermined portion of the pressing roller 2 is in sliding contact with a driven roller 9 mounted on the reading apparatus main body between the carriage roller 8 and the winding roller 3. In addition,
The other side of the pressing sheet is also supported by the same structure as that described above.

In such a reading device, when the carriage 1 moves to the left side in the drawing, the take-up roller 3 takes up the presser sheet 2 so that the presser sheet is wound from the other take-up roller. Since the carriage 1 is removed, the carriage 1 can move on the document surface together with the pressing sheet 2 and the other pressing sheet.

[0007]

However, in such a conventional reader, in order to apply a constant tension to the entire area of the pressing sheet 2, the pressing sheet 2
The other end of the pressing sheet 2 must be parallel to the axial direction of the winding roller 2, the carriage roller 8 and the driven roller 9, but the other end of the pressing sheet 2 is adhered to the mounting base 5 with the double-sided tape 6. In some cases, the other end portion may be inclined with respect to the width direction and may not be parallel to the winding roller 3 or the like, and the tension at the time of attachment may vary in the width direction. Therefore, there is a problem that the page turning reading device cannot be moved smoothly.

Especially, when the reading width is A3 width,
Since the width of the pressing sheet 2 needs to be A3 lateral width or more, that is, 297 mm or more, it is difficult to obtain the parallelism of such a large pressing sheet 2. In addition to this, after the other end of the pressing sheet 2 is adhered to the double-sided tape 6, the pressing base 7
Since it is pressed against the mounting base 5 by the above, there is a problem that the work of mounting the pressing sheet 2 is very troublesome.

Therefore, according to the present invention, the tension of the presser sheet can be made constant and the reciprocating movement of the page turning reader can be made smooth, and the workability of the attaching work of the presser sheet can be improved. The purpose is to provide a device.

[0010]

The invention according to claim 1 is
In order to solve the above-mentioned problems, the work of separating the pages of the book document one by one by reciprocating with respect to the document surface of the book document which is opened and placed at the document reading position and the scanning for reading the document information. And a pair of pressing sheets that are provided at both ends in the moving direction of the page-turning reading means and that press the originals in contact with the document surface of the book original, and are provided in the reading device main body. With one end of the sheet attached, a pair of take-up rollers that can wind up and down the presser sheet,
A pair of mounting portions provided on the main body of the reading device to which the other end of the pressing sheet is attached, and driven rollers provided at both ends in the moving direction of the page turning reading means and slidingly provided at predetermined positions of the pressing sheet. In a book-type document reading device in which the take-up roller in the moving direction winds the pressing sheet when the page-turning reading means moves back and forth, the other end of the pressing sheet is joined to form a tubular shape. It is characterized in that the shaft is inserted into the tubular portion, and the mounting portion is provided with an engaging portion that engages with the shaft, whereby the other end of the pressing sheet is attached to the mounting portion via the shaft.

In order to solve the above-mentioned problems, the invention according to claim 2 is characterized in that at least two engaging portions are provided in parallel with the main scanning direction for reading the document information. In order to solve the above-mentioned problems, the invention according to claim 3 is characterized in that the mounting portion has at least two protrusions disposed outside both ends in the axial direction of the shaft.

[0012]

According to the first aspect of the invention, the other end of the pressing sheet is joined to form a tubular shape, and the shaft is inserted into the tubular portion, and the mounting portion has an engaging portion that engages with the shaft. By being provided, the other end portion of the pressing sheet is attached to the attachment portion via the shaft. Therefore, the pressing sheet is easily attached to the attaching portion, and the workability of the attaching work is improved.

According to the second aspect of the invention, at least two engaging portions are provided in parallel with the main scanning direction for reading the document information. Therefore, the other end of the pressing sheet is arranged in parallel with the take-up roller and the like, and the tension of the pressing sheet is easily made constant. As a result, the reciprocating movement of the page turning reading device is smoothly performed. Claim 3
In the invention described above, the mounting portion has at least two or more protrusions arranged outside both axial end portions of the shaft.
Therefore, the movement of the shaft in the width direction of the pressing sheet is restricted, and the shaft does not slip out of the tubular portion. As a result, the pressing sheet can be stably attached to the attaching portion.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 to 6 are views showing an embodiment of a book document reading device according to the invention described in any one of claims 1 to 3. First,
The configuration will be described. 1 and 2, reference numeral 11 denotes a main body of the reading device, and a contact glass 12 is provided on the upper portion of the main body 11.
Is provided. The contact glass 12 is used to read only one page of a sheet original and a book original, and is pressed by a pressure plate (not shown) when the sheet original and the book original are placed.

A pair of manuscript tables 13a and 13b are provided in the main body 11, and the manuscript tables 13a and 13b are adapted to mount and lift a book document 14 that is opened. Also,
A page turning reading means (hereinafter, simply referred to as reading means) 15 is provided above the document tables 13a and 13b, and the reading means 15 houses a reading section 17 and a page turning section 18 in a carriage 16. .

A timing belt 19 is attached to the carriage 16, and both ends of the timing belt 19 are wound around a drive pulley 20a and a driven pulley 20b.
The drive pulley 20a is connected to a pulley motor 22a of a drive motor 22 via a timing belt 21, and when the driving force of the pulley motor 22a is transmitted via the timing belt 21, the timing belt 19 is driven to drive the carriage 16a.
Is reciprocated with respect to the document surface of the book document 14.

The reading means 15 includes first light sources 24a, 24b,
First mirror 25, second mirror 26, third mirror 27, imaging lens 28, photoelectric conversion element 29, second light sources 30a, 30b and second
The carriage 16 is composed of a light source reflection mirror 31.
At the reading position 23 when the
When light is emitted from the light sources 24a and 24b onto the original on the contact glass 12, the light images of the light sources 24a and 24b are reflected by the first mirror 2
5, through the second mirror 26, the third mirror 27, and the imaging lens 28, an image is formed on the photoelectric conversion element 29.

The first mirror 25 is movable within a range shown by a solid line and a dotted line, and is moved to a position shown by a broken line when reading information on the book document 14. Then, when the first mirror 25 is moved to this position and the carriage 16 is moved in the direction of the arrow B, light is emitted from the second light sources 30a and 30b onto the book document 14 at the reading position 32. The light from 30b is reflected by the second light source reflecting mirror 31, the second mirror 26, the third mirror 27, and the imaging lens 28.
An image is formed on the photoelectric conversion element 29 via the.

Further, the page turning section 18 is provided with a turning belt 33.
A belt driving roller 34 and a belt driven roller 35 that stretch the turning belt 33, and a charging roller 36 that is in sliding contact with the belt 33. The turning belt 33 is configured to move at the same speed as the carriage 16 by being driven by the pair of rollers 34 and 35 as the carriage 16 moves, and when a voltage is applied to the charging roller 36, the belt An unequal electric field is formed on 33 to generate an attractive force.

On the other hand, a pair of pressing sheets 37 and 38 are provided at both ends of the carriage 16 in the moving direction. The pressing sheets 37 and 38 are placed on the original surface of the book original 14 when the originals 13a and 13b are raised. The original 14 is pressed by contacting the. One end of the presser sheet 37 is attached to a take-up roller 39 provided on the main body 11 located at one end in the moving direction of the carriage 16, and the presser sheet 37 is taken up and unwound by the take-up roller 39. It is supposed to be done. Further, the other end of the pressing sheet 37 is attached to an attaching portion 40 provided on the main body 11 as shown in FIG.
The driven roller 41 provided on the main body 11 is slidably contacted between the one end and the other end.

A carriage roller 42 as a driven roller is provided at one end of the carriage 16 in the moving direction, and a pressing sheet 37 is in sliding contact with the roller 42. A gear 43 is connected to the take-up roller 39, and the driving force is transmitted from the drive pulley 20a to the gear 43. The other end of the pressing sheet 38 is attached to a winding roller 44 provided on the main body 11 located at the other end of the carriage 16 in the moving direction.
38 is wound around this winding roller 44 and unwound. Also, the other end of the pressing sheet 38 is
It is attached to a mounting portion 45 provided on the eleventh member, and slidably contacts a driven roller 46 provided on the main body 11 between the one end portion and the other end portion.

A pair of carriage rollers 47, 48 as driven rollers are provided at the other end of the carriage 16 in the moving direction, and a pressing sheet 38 is in sliding contact with the rollers 47, 48. Further, a gear 49 is connected to the winding roller 39, and the driving force is transmitted to the gear 49 from the driven pulley 20b. On the other hand, as shown in FIG. 4, the other end of the pressing sheet 37 is formed into a tubular shape by being joined by adhesion, welding, sewing or the like, and this portion constitutes a tubular portion 37a, and the shaft 50 is provided inside. Is to be inserted.

Further, as shown in FIG.
One engaging portion 40a, 40b is provided, and this engaging portion 40
Reference characters a and 40b are arranged so as to be parallel to the main scanning direction for reading the document information, that is, parallel to the axes of the take-up roller 39, the driven roller 41 and the carriage roller 42, and as shown in FIG. It is supposed to be combined. Also,
The mounting portion 40 is provided with two protrusions 40c and 40d. The protrusions 40c and 40d are disposed outside both axial end portions of the shaft 50, and the shaft 50 moves in the width direction of the presser sheet 37. It is regulated to do. With this configuration, the winding speed of the pressing sheets 37 and 38 is twice the moving speed (scanning speed) of the carriage 16.

The other end of the pressing sheet 38 and the mounting portion 45 have the same structure as that described above, and a description thereof will be omitted. Next, the operation will be described. First, after inserting the shaft 50 into the tubular portion 37a at the other end of the pressing sheet 37, the shaft 50 is engaged with the engaging portions 40a and 40b, thereby
Attach the other end of 37 to the attachment 40. Also, presser sheet
The other end of 38 is similarly attached to the attachment portion 45.

Then, in order to read the book original 14, the book original 14 is placed on the original plates 13a and 13b and raised, and the original surface is pressed by the pressing sheets 37 and 38. Then, the motor pulley 22a is driven, and the timing belt 21 and the drive pulley 20a are used to drive the timing belt.
Document information is read by driving 19 to scan the carriage 16 in the direction of arrow B and irradiating the reading position 23 with light from the light sources 30a and 30b.

At this time, the take-up roller 39 is driven by the drive pulley 5a and the gear 43, and the pressing sheet 37 taken up by the roller 39 is unwound and
The take-up roller 44 is driven by the driven pulley 20b and the gear 49.
Is driven, and the pressing sheet 38 is wound around the winding roller 44 at a speed twice the scanning speed of the carriage 16. on the other hand,
When turning the pages of the book document 14, the timing belt 21 is driven to move the carriage 16 in the direction of arrow A. At this time, a voltage is applied to the charging roller 36 to form an unequal electric field on the belt 33 to generate an attractive force, so that one page opened by the belt 33 is attracted and while this page is attracted. The page is turned by scanning the carriage from right to left.

At this time, the drive pulley 5a and the gear 43
The take-up roller 39 is driven by the take-up roller 39, the presser sheet 37 is taken up by the roller 39 at a speed twice as fast as the scanning speed of the carriage 16, and the take-up roller 44 is driven by the driven pulley 20b and the gear 49 to take up the take-up roller. Laura 44
The presser sheet 38 that has been wound around is unwound. As described above, in this embodiment, the other ends of the pressing sheets 37 and 38 are joined to form a tubular shape, and the shaft 50 is provided in the tubular portions 37a and 38.
Engaging part 40 that engages the shaft 50 with the mounting parts 40 and 45
By providing a and 40b, the other ends of the holding sheets 37 and 38 are attached to the mounting portions 40 and 45 via the shaft 50, so that the holding sheets 37 and 38 can be easily attached to the mounting portions 40 and 45. It is possible to improve the workability of the mounting work.

Further, since the mounting portions 40 and 45 have two engaging portions 40a and 40b so as to be parallel to the reading main scanning direction of the document information, the other end portions of the pressing sheets 37 and 38 are The take-up rollers 39, 44, the driven rollers 41, 46 and the carriage rollers 42, 47, 48 can be arranged parallel to each other,
The tension of the presser sheets 37, 38 can be easily made constant. As a result, the reciprocating movement of the carriage 16 can be smoothly performed.

Further, since the mounting portions 40, 45 have two protrusions 40c, 40d disposed outside both axial end portions of the shaft 50, the pressing sheets 37, 38 are axially extended in the width direction. It is possible to prevent the shaft 50 from slipping out of the cylindrical portion 37a without moving the shaft 50. As a result, the pressing sheets 37, 38 can be stably attached to the attachment portions 40, 45.

[0030]

According to the invention described in claim 1, the pressing sheet can be easily attached to the attaching portion, and the workability of the attaching work can be improved. According to the invention described in claim 2, the other end of the pressing sheet can be arranged in parallel with the take-up roller, the driven roller and the driven roller provided in the page turning reading means, and the tension of the pressing sheet. Can be easily made constant. As a result, it is possible to smoothly perform the reciprocating movement of the page turning reading means.

According to the third aspect of the invention, the shaft does not move in the width direction of the pressing sheet, and it is possible to prevent the shaft from coming out of the tubular portion. As a result, the pressing sheet can be stably attached to the attaching portion.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of a book document reading device according to the invention described in any one of claims 1 to 3, and is an overall configuration diagram thereof.

FIG. 2 is a configuration diagram of a page turning reading unit according to an embodiment.

FIG. 3 is a diagram showing a mounting state of a holding sheet to a reading device main body according to an embodiment.

FIG. 4 is a view showing a state in which a rod is removed from the inside of the tubular portion of the pressing sheet according to the embodiment.

FIG. 5 is a configuration diagram of a mounting portion according to an embodiment.

FIG. 6 is a view showing a state in which a holding sheet according to an embodiment is attached to a mounting portion.

FIG. 7 is a view showing a mounting state of a pressing sheet to a conventional reading device main body.

[Explanation of symbols]

 11 Reading device main body 14 Book original 15 Page turning reading means 32 Reading position 37, 38 Holding sheet 37a Cylindrical part 39, 44 Winding roller 40, 45 Mounting part 40a, 40b Engaging part 40c, 40d Protrusion part 42, 47, 48 Carriage roller (driven roller) 50 axes

Claims (3)

[Claims] 1. A reciprocating movement with respect to the document surface of a book document placed open at the document reading position.
A page turning reading means for separating the pages of the book original one by one and reading and scanning the document information, and provided at both ends in the moving direction of the page turning reading means,
A pair of pressing sheets that come into contact with the original surface of the book original and press the original, and a pair of winding sheets that are provided on the reading device main body and have one end of the pressing sheet attached, and that can wind the pressing sheet and unwind it. A take-up roller, a pair of mounting portions provided on the reading device main body, to which the other end of the presser sheet is attached, and a follower provided at both ends in the moving direction of the page-turning reading means, and sliding a predetermined portion of the presser sheet. A book-type document reading apparatus comprising a roller and a take-up roller which winds a pressing sheet in a moving direction when the page-turning reading means reciprocates, wherein the other end of the pressing sheet is joined to form a cylinder. In addition, the shaft is inserted into the tubular portion, and the mounting portion is provided with an engaging portion that engages with the shaft. Reader book document, characterized in that attached to attaching part. 2. The book document reading device according to claim 1, wherein at least two engagement portions are provided in parallel with a main scanning direction for reading document information. 3. The book document reading device according to claim 2, wherein the mounting portion has at least two protrusions disposed outside both end portions in the axial direction of the shaft.