JPH06164834A - Picture reader - Google Patents

Abstract

PURPOSE:To attain reading proper to the kind of an original and to improve the portable performance by connecting an original read section, an original carrier section and a paper feed section removably, respectively, providing a battery to the read section. CONSTITUTION:A mode changeover means is provided on a picture processing unit such as a portable personal computer to which a read section 1 is connected. In the automatic draft feeding mode, while the read section 1, the carrier section 2 and the paper feed section 3 are coupled, plural originals 100 set to a tray 4 of the paper feed section 3 are fed automatically are separated one by one each and its picture is read. In the manual insert mode, while the read section 1 and the carrier section 2 are coupled, the originals 100 inserted manually to an original entrance 14 are read, In the self feeding mode, the read section 1 is run on the originals to read the original. A battery used for a drive source of the read means and the rotating body drive section is provided on the read section 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image reading apparatus in which a reading unit for reading an image formed on a document and a document conveying unit are detachable.

[0002]

2. Description of the Related Art Conventionally, an image reading apparatus of this type is disclosed in, for example, Japanese Patent Application Laid-Open No. 2-22958.

In this image reading apparatus, in the case of reading a sheet-shaped document of a normal size, the document feeding path between the reading unit and the feeding unit is provided with the reading unit integrally connected to the feeding unit. The original is manually inserted into the document and the original image is read while the original is being conveyed.

On the other hand, in the case of reading a book or a particularly large sheet-like document, the reading unit is separated from the transport unit, and the reading unit is moved along the document to read an image.

[0005]

In such a structure, a plurality of originals cannot be fed automatically, which is inconvenient when processing a plurality of originals.

[0006] Recently, notebook computers that are easy to carry have become widespread, but the image reading device does not correspond to the convenience of portability of the notebook computer, and should be carried to a place without a power source. I couldn't.

The present invention has been made under such circumstances. One reading unit is commonly used to read while moving the reading unit, to read while manually feeding an original, and to read a plurality of sheets. It is possible to automatically read each of the originals one by one and read them as needed.
Another object of the present invention is to provide an image reading device which is also excellent in portability.

[0008]

[Means for Solving the Problems] To achieve the above object
In the present invention, the rotating body that comes into contact with the document and the rotating body
Relative to the driven body of the rotating body and the rotation of the rotating body
And a reading unit that reads the image of the document that moves
And a reading unit that is detachable from the reading unit.
Documents that come into contact with the rotating body and are fed between the scanning unit
Conveyance having a conveying means for conveying the
And an image reading apparatus including
Detachable from at least one of
Driven by the rotating body drive unit, multiple originals
Paper feeding that supplies each between the reading unit and the transport unit
A sheet feeding section having a means, and the reading section,
The reading unit and the drive source of the rotating body drive unit.
It was equipped with a battery.

Further, a reading unit having a rotating body which comes into contact with the original document and a reading unit which reads an image of the original document which is relatively moved by the rotation of the rotating body, and a detachable unit which is detachable from the reading unit. In an image reading apparatus having a conveying unit that has a conveying unit that cooperates with the rotating unit to convey a document that is in contact with and is supplied to the reading unit, the image reading apparatus is detachably attached to at least one of the reading unit and the conveying unit. Are provided in the connecting section, the placing section whose bottom surface is in contact with the placing surface, the tray for supporting a plurality of originals, and the above-mentioned placing section, and the plurality of originals are read one by one and the conveying section. And a sheet feeding means for supplying the sheet to the sheet feeding section, and the sheet feeding section having the center of gravity set to the placing section.

Further, there is provided a paper feeding unit which is detachably attached to at least one of the reading unit and the carrying unit and has a paper feeding unit for feeding a plurality of originals one by one between the reading unit and the carrying unit. A guide means is provided in the carrying section for guiding the side edge of the document supplied between the reading section and the carrying section.

Then, the first and second reading unit rotating bodies that come into contact with the original document, the rotating body driving unit that drives these rotating bodies, and the image of the original document that relatively moves due to the rotation of the rotating body are described above. A reading unit having a reading unit for reading from between the first and second rotating bodies, and a document which is detachably attached to the reading unit and is pressed against the rotating body and supplied between the reading unit and the rotating unit. An image reading apparatus having a first and a second transporting unit that transports following a body, and a transporting unit having a rotating unit, wherein the rotating unit driving unit is detachably attached to at least one of the reading unit and the transporting unit. Is provided with a sheet feeding unit having a sheet feeding unit rotating member for feeding a plurality of originals one by one between the reading unit and the conveying unit. Second read The peripheral speed of the part rotating body, the paper feeding section rotating body, the first reading section rotating body, to constitute a drive mechanism to be as fast as the order of the second reading section rotating body.

[0012]

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

<Structure> FIGS. 1 and 2 are a plan view and a side view showing an embodiment of an image reading apparatus to which the present invention is applied. A reading unit 1 for reading an image of a document and a detachable unit for the reading unit 1 are shown. A conveyance unit 2 that freely conveys a document while being attached to the reading unit 1, and a document that is automatically attached between the reading unit 1 and the conveyance unit 2 when detachably attached to the conveyance unit 2 and attached to the conveyance unit 2 The tray 4 which is composed of a paper feeding unit 3 for feeding paper and is rotatably attached to the paper feeding unit 3 can be folded on the reading unit 2 as shown in FIG.

In this image reading apparatus, as shown in FIG. 4, a plurality of originals set in the paper feeding unit 3 are set one by one in a state where the reading unit 1, the conveying unit 2 and the paper feeding unit 3 are combined. In the automatic paper feed mode for reading an image while separating and automatically feeding the paper, and in the state where the reading unit 1 and the transport unit 2 are combined as shown in FIGS. 5 and 6, the document manually inserted into the document entrance 14 is read. A manual feed mode and a self-propelled mode in which the reading unit 1 is placed on a document and the document is read while the document is self-propelled as shown in FIGS. 7 and 8.

The switching means for switching the automatic paper feed mode, the manual feed mode and the self-propelled mode is an image processing apparatus (control means) not shown such as a portable personal computer to which the reading section 1 is connected and which performs image processing. It is provided in. The switching unit may be provided in the reading unit 1.

The reading unit 1 is shown in FIG. 6, FIG. 9, FIG.
It is covered by the cover 10 like 1, and inside,
The main motor 11 of the rotating body drive unit, the pulley 40 attached to the rotary shaft of the motor 11, the pair of front and rear pulleys 13A and 13B, and the pulleys 40, 13A and 13
A timing belt 12 which is hung on B to drive a pair of pulleys 13A and 13B in the direction of the arrow;
2, a tension roller 41 for pressing 2 and a pulley 13A,
It is arranged between the conveying rollers 5A, 5B (first and second reading portion rotating bodies) which are attached to the rotating shafts 55, 56 of 13B and driven to rotate, and the light receiving surface is conveyed between these conveying rollers 5A, 5B. Contact type image sensor 6 (reading means) with a built-in light source mounted so as to face part 2 direction
And a lever-type sensor 15 (detection means) that is attached to the document entrance 14 and detects a document inserted from here.
And a battery 200 such as a rechargeable battery or a dry battery that is a power source for driving the motor 11 and the image sensor 6
And are provided.

A gear 42 for transmitting the drive to the sheet feeding section 3 is attached to one end of the rotary shaft 55.

As shown in FIG. 22, the sensor 15 detects the leading edge and the trailing edge of the document when the leading edge of the sensor 15 is lowered (the document is not detected) as shown in FIG. It also has a function to prevent the part 1 from falling from the end of a book or desk while moving. When the sensor 15 turns off during self-running, the motor 11 is stopped and a sound or light warning is issued. There is. Therefore, the sensor 15 is provided ahead of the image sensor 6 in the moving direction. In addition, the sensor 15
Is provided in front of the center of gravity in the moving direction, and the sensor 15
Is turned off and the reading unit 1 is stopped, the center of gravity is left on the image reading surface.

As shown in FIG. 10, the bottom surface (guide member) of the cover 10 of the reading section 1 is provided with coupling holes 51, 52, 53, 54 for coupling with the transport section 2. Since the bottom surface (guide surface) of the cover 10 faces the document, it also has a function of a guide for guiding the document.

Further, the rotary shafts 55 and 56, the image sensor 6, the motor 11, the sensor 15 and the like are attached to a frame 17 shown in FIG.
The cover 10 is urged in the direction away from the document surface by the left and right compression springs 16 mounted between the cover 10 and the.
Reference numeral 57 is a rod for supporting the compression spring 16, 58 is a stopper attached to the tip of the rod 57 for restricting one end of the compression spring 57, and 59 is a side plate for fixing the motor 11 to the frame 17.

The compression spring 16 covers the cover 1 in the self-propelled mode.
0 is raised to open a space between the bottom surface of the cover 10 and the conveying surface so that the leading end of the cover 10 in the moving direction and the bottom surface of the cover 10 do not easily come into contact with the document so that the reading unit 1 does not interfere with self-propelling. is there.

When the reading unit 1 and the conveying unit 2 are combined, the rollers 20A and 20B of the conveying unit 2 which will be described later press the conveying rollers 5A and 5B, whereby the conveying rollers 5A and 5B and the image sensor 6 are connected. The motor 11, the sensor 15 and the like are retracted to a predetermined position inside the cover 10.

Battery 200 c As shown in FIG. 11, the main scanning of the reading unit 1 is arranged on the other end side with respect to the rotary body driving unit such as the motor 11 arranged on one end side of the reading unit 1 in the main scanning direction. The weight is balanced in the direction.

The rotating body driving unit is arranged outside the reading area of the image sensor 6, and the battery 20 is arranged inside the reading area of the image sensor 6.

The transport unit 2 is shown in FIGS. 6, 12, 13, and 14.
It is covered with a cover 22 like the
When the document is connected to the reading unit 1, it is brought into contact with the transport rollers 5A and 5B and is rotated by being driven by the transport rollers 5A and 5B to move the document, for example, rollers 20A and 20B (first and second transport unit rotations). Image sensor 6
The pressing member 21 to be brought into close contact with the light receiving surface of the
Reverse L-shaped coupling projections 61, 6 which engage with the coupling holes 51, 52, 53, 54 of the above and couple the transport section 2 to the reading section 1.
2, 63, 64, mounting holes 65, 66, 67 into which coupling members 8A, 8B, 8C, 8D, 8E, which will be described later, are attached when the paper feeding unit 3 is mounted, the reading unit 1 and the transport unit 2. A reference guide (guide means) 202 for guiding one side edge of the document supplied between is provided.

Incidentally, the rollers 20A and 20B have their rotating shafts by means of springs (not shown), respectively, to convey rollers 5A and 5B.
Although biased to the side, the spring pressure of the roller 20A is set to be larger than that of the roller 20B.

The reading unit 1 and the conveying unit 2 are coupled to each other by inserting the coupling special feature 62 into the coupling hole 51 and then horizontally shifting it as shown in FIG.

As shown in FIGS. 16 to 18, the paper feeding unit 3 is provided with a placing unit 201 having a flat bottom so that it can be placed on a table or a desk (not shown) outside the tray 4. Three
The center of gravity of is set on the mounting portion 201 so that it does not fall when the paper feeding portion 3 is mounted on a desk or the like.

In the mounting portion 201, coupling members 8A, 8B, 8C, 8D and 8E (coupling) which are inserted into the mounting holes 65, 66 and 67 of the transporting section 2 and couple the transporting section 2 and the sheet feeding section 3 together. Section), a gear 7 that receives a rotational driving force from the gear 42 attached to the rotation shaft 55 of the pulley 13A, a gear 43 attached to the rotation shaft of the gear 7, and a gear 44 that meshes with the gear 43, A sheet feeding unit provided coaxially with the gear 44, for example, a sheet feeding roller 30 (sheet feeding unit rotating body), and a separation pad 3 pressed against the sheet feeding roller 30 by a spring 45.
1 and a pressing member 21 made of white synthetic resin that presses the document against the easy sensor 6 are provided. Therefore, the paper feed unit 3 feeds the originals stacked on the tray 4 to the paper feed roller 30.
It is possible to separate the sheets one by one by means of the separation pad 31 and to feed them to the conveyance path between the conveyance rollers 5A and 5B and the rollers 20A and 20B.

The sheet feeding roller 30 and the conveying roller 5A,
The peripheral speed of 5B is, for example, paper feed roller 30 <conveying roller 5A <
It is a conveyance roller 5B.

The image reading apparatus configured as described above is connected to an image processing apparatus such as a personal computer, receives a read command from the image reading apparatus, reads an original image, and transfers the read image data to the image processing apparatus. Is configured as follows.

<Operation> The operation of the image reading apparatus described above will be described by dividing it into three modes: (1) automatic paper feed mode, (2) manual feed mode, and (3) self-propelled mode.

(1) Automatic paper feeding mode As shown in FIG. 18, a plurality of originals 100 are stacked on the tray 4 of the paper feeding unit 3 in a state where the reading unit 1, the conveying unit 2 and the paper feeding unit 3 are combined. To do. When a reading command is given from the image processing apparatus in this state, the motor 1 is used to separate and feed the document.
1 is driven. Then, the rotational driving force of the motor 11 is transmitted to the paper feed roller 30 via the gear 7, and the plurality of originals stacked on the tray 4 are rotated by the rotation of the paper feed roller 30 in the feeding direction (counterclockwise). The top few of them are pulled out.

These several originals are sent between the separation pad 31 pressed against the paper feed roller 30 and the paper feed roller 30, where only the uppermost one is separated and the original entrance 1
Sent to 4.

The original 100 sent to the original entrance 14 is further fed, and its leading end reaches the position of the sensor 15.
Then, the front end of the document 100 presses the sensor 15 in the conveying direction, and the sensor 15 is turned on. When the sensor 15 is turned on, the rotation amount of the motor 11 from the time when the sensor 15 is turned on is counted by a control unit (not shown). When the motor 11 rotates by a predetermined rotation amount and the leading edge of the original 100 is conveyed to a position where it is pressed by the conveying roller 5A and the roller 20A by the pressing member 21, a reading command is issued and the original 100 is pressed by the pressing member 21. The original image is read by the image sensor 6 while being conveyed as shown in FIG.

Then, the trailing edge of the original passes through the sensor 15,
When the sensor 15 is turned off, the motor 11 is driven for a predetermined time or a predetermined amount thereafter, the image reaching the trailing edge of the document 100 is read, and then the document is discharged from the document exit 19.

When it is time to eject the document 100 from the document exit 19, the motor 11 is stopped and returns to the initial state, but when the subsequent document 100 remains in the tray 4, the original document 100 is started. When the trailing edge of the trailing edge passes through the paper feed roller 30, the next original is continuously sent out and the above operation is performed.

(2) Manual feeding mode As shown in FIG. 20, the document 100 is inserted into the document entrance 14 with the reading unit 1 and the conveying unit 2 combined. Then, the front end of the document 100 presses the sensor 15 in the conveying direction, and the sensor 15 is turned on. When the sensor 15 is turned on, a drive signal is sent from the control means (not shown) to the motor 11, the motor 11 is rotated, and the original 100 is conveyed by the conveyance rollers 5A and 20A, and the leading end of the original 100 is conveyed to the reading start position. Then, the manuscript 100
The document image is read by the image sensor 6 in a state in which the pressing member 21 is in close contact with the light receiving surface of the image sensor 6.

Then, the trailing edge of the original passes the sensor 15,
When the sensor 15 is turned off, the motor 11 is driven for a predetermined time thereafter, the image reaching the rear end of the document 100 is read, and then the document is discharged from the document exit 19.

When it is time to eject the document 100 from the document exit 19, the motor 11 is stopped and the initial state is restored.

(3) Self-propelled mode As shown in FIG. 21, the reading unit 1 is placed on the original 101 such as a book in a state where the conveying unit 2 is separated from the reading unit 1. At this time, the reading unit 1 is supported on the original 101 by the transport rollers 5A and 5B.

When the reading unit 1 is supported on the original 101, the sensor 15 is pushed by the original and is turned on. In this state, when a drive signal is issued from the control means (not shown) to the motor 11, the motor 11 rotates by a predetermined rotation amount, and the reading unit 1 moves on the document 101 on the conveyance rollers 5A ,.
It runs on its own with the rotation of 5B. In the self-propelled process, the original image is read by the image sensor 6.

At this time, since the frame 17 is urged toward the bottom side by the compression spring 16 attached to the cover 10, when the transport unit 2 is separated from the reading unit 1, the transport rollers 5A and 5B, the image sensor. 6, the sensor 15 and the like are relatively projected from the floor surface of the cover 10, the distance between the bottom surface of the cover 10 and the original 101 is wider than in the automatic sheet feeding mode, and the cover 10 is self-propelled by the reading unit 1. It can run smoothly without any obstacles.

When the reading unit 1 reaches the rear end of the original 101 as shown in FIG. 22, the sensor 15 is turned off. Then, the driving of the motor 11 is stopped immediately or after a predetermined rotation by the control means (not shown) to stop the self-propelled driving, and sound or light is emitted to notify the operator of the danger.

Therefore, the reading unit 1 does not drop from the original 101 or the desk on which the original 101 is placed.

The operation may be as follows.

(1) Automatic paper feeding mode As shown in FIG. 18, a plurality of originals 100 are stacked on the tray 4 of the paper feeding unit 3 with the reading unit 1, the transport unit 2 and the paper feeding unit 3 combined. To do. When a reading command is given from the image processing apparatus in this state, the motor 1 is used to separate and feed the document.
1 is driven, and the tray 4 is rotated by the rotation of the paper feed roller 30.
The top several sheets of the plurality of originals stacked on the sheet are pulled out.

These several originals are sent between the separation pad 31 and the paper feed roller 30, separated into one and sent to the original entrance 14.

When the leading edge of the document 100 sent to the document entrance 14 reaches the position of the sensor 15, the sensor 15 is turned on. When the sensor 11 is turned on, the motor 11 rotates by a predetermined rotation amount, and when the leading edge of the document 100 is conveyed to a position where the conveyance roller 5A and the roller 20A press the pressing member 21, the image processing apparatus issues a read command. I will be waiting. Then, when a reading command is issued, the motor 11 starts to rotate, and the document 100 is brought into close contact with the light receiving surface of the image sensor 6 by the pressing member 21 in FIG.
While being conveyed as shown in FIG.
Read by

Then, the trailing edge of the original passes the sensor 15,
When the sensor 15 is turned off, the motor 11 is driven for a predetermined time or a predetermined amount thereafter, the image reaching the trailing edge of the document 100 is read, and then the document is discharged from the document exit 19.

When it is time to discharge from the document outlet 19, the motor 11 is stopped and returns to the initial state. However, when the subsequent document 100 remains in the tray 4, the trailing edge of the original document 100 is returned. When the sheet passes the sheet feeding roller 30, the next original is continuously sent out and the above operation is performed.

(2) Manual Feed Mode When the document 100 is inserted into the document inlet 14 with the reading unit 1 and the transport unit 2 coupled as shown in FIG. 20, the sensor 15 is turned on. As a result, a drive signal is issued from the control means (not shown) to the motor 11, the motor 11 rotates by a predetermined amount, and the leading edge of the original 100 is conveyed to the position where it is pressed by the pressing member 21 by the rollers 5A and 20A. Waits for the reading command of. When a reading command is issued, the motor 11 starts to rotate, and the document 100 is conveyed by the pressing member 21 while being in close contact with the light receiving surface of the image sensor 6, and the image of the document is read by the image sensor 6 at this conveyance home.

Then, the trailing edge of the original passes through the sensor 15,
When the sensor 15 is turned off, the motor 11 is driven for a predetermined time thereafter, the image reaching the trailing edge of the document 100 is read, and then the document 100 is discharged from the document exit 19. Manuscript exit 19
After a lapse of the time for discharging from, the motor 11 is stopped and returns to the initial state.

(3) Self-propelled mode As shown in FIG. 21, the reading unit 1 with the transport unit 2 separated.
Is placed on the original 101 such as a book. At this time, the reading unit 1 is supported on the original 101 by the transport rollers 5A and 5B.

When the reading unit 1 is supported on the original 101, the sensor 15 is turned on. In this state, when a drive signal is issued from the control means (not shown) to the motor 11, the motor 11 rotates by a predetermined rotation amount, and the reading section 1 causes the document 1 to move.
It is self-propelled to the reading position of 01 by the rotation of the conveying rollers 5A and 5B.

In this state, a read command from the image processing apparatus is awaited. Therefore, when a reading command is issued, the motor 11 starts to rotate, and the reading unit 1 self-runs with the light receiving surface of the image sensor 6 in close contact with the manuscript 101. In the self-running process, the manuscript image is read by the image sensor 6. To be

When the reading unit 1 reaches the rear end of the original 101 as shown in FIG. 22, the sensor 15 is turned off, the driving of the motor 11 is stopped immediately or after a predetermined rotation, and the control means outputs a sound or light. Is issued and self-propelled stops.

<Modification> The present invention is not limited to the above-described embodiment, and the following modifications are possible.

(1) In the above embodiment, the reading unit is provided with the rotating body driving unit, the conveying unit is driven by the conveying unit, and the paper feeding unit operates by receiving the driving force from the rotating body driving unit. The reading unit may be provided with a rotary body driving unit for driving the rotary body, and the paper feeding unit may be provided with a paper feeding unit driving unit for driving the paper feeding unit.

(2) In the above-described embodiment, the self-propelled reading unit having the rotating body driving unit is shown. However, the reading unit is a so-called hand scanner that reads an image while moving manually without a driving unit. Is also good. In this case, the transport unit may be provided with a transport unit driving unit that drives the transport unit, and the sheet feeding unit of the sheet feeding unit may be driven by the transport unit driving unit. You may provide a drive part, respectively.

(3) Although the image sensor 6 has a structure for directly receiving an image from a document, it may have a structure in which a reduction or expansion optical system is added to the light receiving optical path of the image sensor 6.

(4) When the detecting means detects a height difference greater than or equal to a predetermined level, the control means stops the drive section to stop the movement, and then the drive section is reversely rotated to reverse the moving direction to cause an abnormal conveyance surface. You may make it evacuate from.

(5) The detecting means is not limited to the lever type sensor 15, but uses a light emitting portion that emits light and a light receiving portion that receives light returning from the light emitted from this light emitting portion and returning to the front. Alternatively, when the amount of light received by the light receiving unit changes by a predetermined amount or more, it may be determined that there is a large drop, a wrinkle of the document, a curvature of the document surface, or the like in the front in the moving direction.

(6) In the above embodiment, the entire cover 10 is raised from the image reading surface in the self-propelled mode, but the cover 10 is divided into the bottom cover 10A and the top cover 10B as shown in FIG. Divide and cover the top side 10
B is fixed to the frame 17 of FIG. 11, and the bottom side cover 10
By mounting A in the same manner as the cover 10, the bottom cover 1 which is easy to contact the image reading surface in the self-propelled mode
Only 0A may be raised. It should be noted that an inclined surface 10C may be formed so that the front side in the moving direction is less likely to contact the image reading surface.

(7) In the above embodiment or the modification of (6), the surface of the reading unit 1 facing the image reading surface is covered with a cover except the conveying rollers 5A and 5B, the image sensor 6 and the sensor 15. The cover may cover only the front end side and the rear end side in the moving direction. In this case, a guide member may be provided at a predetermined position between the front end side and the rear end side of the cover bottom surface.

(8) In the above-described embodiment, the paper feed unit is mounted on the carrying unit equipped with the reading unit, but the paper feeding unit may be mounted on the reading unit equipped with the carrying unit. Further, the structure may be such that the paper feed unit is mounted across the combined reading unit and transport unit.

[0067]

As is clear from the above description, according to the present invention, the following effects can be obtained.

(1) A reading unit having a rotating body that contacts the original, a rotating body driving unit that drives this rotating body, and a reading unit that reads the image of the original that moves relatively by the rotation of the rotating body. , Removable from the reading unit,
An image reading apparatus comprising: a transport unit having a transport unit that follows the rotary body and transports a document that is in contact with the rotary body and is supplied between the reading unit and the reading unit. At least one of which is detachable, is driven by the rotating body driving unit, and is provided with a paper feeding unit having a paper feeding unit that feeds a plurality of originals one by one between the reading unit and the conveying unit. By using the reading unit in common, the feeding unit and the paper feeding unit can be attached and detached, so that the reading unit alone reads an image while moving along the document surface, and when the reading unit and the feeding unit are combined, the reading unit and the feeding unit are conveyed. An image is read while a document inserted in a conveyance path formed between the sheet feeding section and the sheet conveyance section is conveyed, and when the reading section, the conveyance section, and the sheet feeding section are combined, the originals are fed one by one from the sheet feeding section. Feeding image can be used in three forms reading while conveying the document can be read appropriate to the type of document.

Further, since the reading unit and the battery serving as the driving source of the rotating body driving unit are provided in the reading unit, the reading unit is as portable as a notebook computer, and an image can be read without using a commercial power source.

Since the rotating body drive section is arranged outside the reading area of the reading means and the battery is arranged inside the reading area of the reading means, the weight of the reading section is balanced and skew during self-propelling is unlikely to occur and is stable. The scanned image can be read.

(2) A reading unit having a rotating body which comes into contact with the original document and a reading unit which reads an image of the original document which is relatively moved by the rotation of the rotating body, and the rotating unit which is detachable from the reading unit. An image reading apparatus having a conveying unit that conveys a document that has come into contact with the reading unit and is fed between the reading unit and the rotating unit in cooperation with the rotating unit, and is attached to and detached from at least one of the reading unit and the conveying unit. A flexible connecting portion, a mounting portion whose bottom surface abuts on the mounting surface, a tray for supporting a plurality of originals, and a mounting portion provided in the above-mentioned mounting portion, wherein the plurality of originals are read one by one and the reading portion Since the sheet feeding unit having a sheet feeding unit for feeding between the sheet feeding unit and the conveying unit is provided and the center of gravity is set to the placing unit described above, there are three types of reading of moving reading of the reading unit, manual reading, and automatic sheet feeding reading.
Not only can the form be read, but when the paper feed unit is placed on a placement surface such as a desk, the center of gravity is at the placement unit and it will not tip over. Further, when the paper feeding unit is attached to at least one of the reading unit and the transporting unit, since the center of gravity is on the placing unit, a large rotational moment is not applied to the coupling unit, so that the coupling unit does not need to be rigid.

(3) A paper feeding unit which is detachably attached to at least one of the reading unit and the carrying unit and has a paper feeding unit for feeding a plurality of originals one by one between the reading unit and the carrying unit. And guide means for guiding the side edge of the document supplied between the reading section and the conveying section, which are provided in the conveying section, and of course, the above-described three forms can be read. The guide unit of the transport unit can be specified as a guide when the paper feeding unit is mounted, and the guide reference can be shared.

(4) The first and second reading portion rotary members that come into contact with the original document, the rotary member driving unit that drives these rotary members, and the image of the original document that relatively moves due to the rotation of the rotary member. A reading unit having a reading unit for reading from between the first and second rotating bodies, and a document that is detachably attached to the reading unit and is pressed against the rotating body and supplied between the reading units. An image reading apparatus comprising: a first and a second conveying unit that conveys and follows a rotating body; and a conveying unit having a rotating body. In the image reading apparatus, the rotating unit is detachably attached to at least one of the reading unit and the conveying unit. A sheet feeding unit having a sheet feeding unit rotating body that is driven by a unit to feed a plurality of originals one by one between the reading unit and the conveying unit; ， Second reading Since the drive mechanism is configured so that the peripheral speed of the rotating body becomes faster in the order of the sheet feeding unit rotating body, the first reading unit rotating body, and the second reading unit rotating body, the above-described three forms can be read. Of course, it is possible to prevent the original document from being bent during the process of conveying the original document, and it is possible to secure a space between the conveyed original document and the next original document when the rear end of the original document passes through the rotary member of the paper feeding unit.

In addition, the first and second conveying unit rotary members
Since the pressing force to the second reading unit rotating body is larger in the first conveying unit rotating body than in the second conveying unit rotating body, the second rotating unit having a faster peripheral speed than the first reading unit rotating body is used. While preventing the document from being bent by the reading unit rotating body, the document is conveyed at a constant speed by the peripheral speed of the first reading unit rotating body, and stable image reading can be performed.

(5) Since the reading unit and the paper feeding unit are detachably attached to the carrying unit, the carrying unit may be attached to the reading unit when the manual feeding mode is adopted, and the automatic feeding mode is further adopted. In that case, a paper feed unit may be attached to the transport unit. Further, in order to switch from the automatic sheet feeding mode to the reading section moving mode, the reading section may be removed from the transport section, and when the automatic sheet feeding mode is changed to the manual feed mode, the sheet feeding section may be removed from the transport section. In this way, there is no need to attach or detach the three units when switching to any form, and it is possible to efficiently configure the configuration.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of an image reading apparatus of the present invention.

FIG. 2 is a side view of the image reading apparatus of FIG.

FIG. 3 is a side view showing a state in which the tray of the paper feeding unit in FIG. 1 is folded.

FIG. 4 is a cross-sectional view of a state in which a reading unit, a conveying unit, and a paper feeding unit are combined.

FIG. 5 is a side view showing a state in which the reading unit and the transport unit are combined.

FIG. 6 is a cross-sectional view showing an internal configuration in a state where a reading unit and a conveying unit are combined.

FIG. 7 is a side view showing the reading unit with the transport unit separated.

FIG. 8 is a cross-sectional view of the reading unit with the transport unit separated.

FIG. 9 is a front view of a reading unit.

FIG. 10 is a bottom view of the reading unit.

FIG. 11 is a cross-sectional view showing a configuration in which a carrying roller and the like of a reading unit are projected from a cover.

FIG. 12 is a plan view of a transport unit.

FIG. 13 is a front view of a transport unit.

FIG. 14 is a side view of the transport section.

FIG. 15 is a cross-sectional view showing a combined state of a transport unit and a reading unit.

FIG. 16 is a plan view of a paper feeding unit.

FIG. 17 is a side view of the paper feeding unit.

FIG. 18 is a cross-sectional view for explaining an operation in a state where the reading unit, the transport unit, and the paper feeding unit are combined.

FIG. 19 is a cross-sectional view for explaining an operation in a state where the reading unit, the transport unit, and the paper feeding unit are combined.

FIG. 20 is a cross-sectional view for explaining an operation in a state where the reading unit and the transport unit are combined.

FIG. 21 is a cross-sectional view showing a state in which a document image is read only by the reading unit.

FIG. 22 is a cross-sectional view for explaining a state where the document edge is reached when the document image is read only by the reading unit.

FIG. 23 is a cross-sectional view showing a configuration of a modified example of the reading unit.

[Explanation of symbols]

 1 Reading Section 2 Conveying Section 3 Paper Feeding Section 4 Tray 5A Conveying Roller 5B Conveying Roller 6 Image Sensor 10 Cover 11 Motor 15 Sensor 16 Spring 17 Frame 20A Roller 20B Roller 21 Holding Member 30 Feeding Roller 31 Separation Pad

Claims (10)

[Claims] 1. A reading unit having a rotating body that comes into contact with an original, a rotating body driving unit that drives the rotating body, and a reading unit that reads an image of an original that moves relatively by the rotation of the rotating body. In the image reading device, the image reading apparatus is detachably attached to the reading unit, and includes a conveyance unit that has a conveyance unit that contacts the rotating body and conveys a document supplied between the reading unit and the reading unit, following the rotating body. At least one of the reading unit and the transport unit is detachably attached, and has a paper feeding unit that is driven by the rotating body driving unit and that feeds a plurality of documents one by one between the reading unit and the transport unit. An image reading apparatus comprising: a paper feeding unit; and a battery provided in the reading unit and serving as a driving source of the reading unit and the rotating body driving unit. 2. The image reading apparatus according to claim 1, wherein the rotating body driving unit and the driving battery are arranged on both ends of the reading unit, respectively. 3. The image reading apparatus according to claim 1, wherein the rotating body driving unit is arranged outside the reading area of the reading unit, and the driving battery is arranged inside the reading area of the reading unit. . 4. A reading unit having a rotating body that comes into contact with a document and a reading unit that reads an image of the document that moves relatively by the rotation of the rotating body, and a detachable unit for the reading unit. An image reading apparatus having a conveying unit having a conveying unit that cooperates with the rotating unit to convey a document that is in contact with and is supplied between the reading unit and the reading unit, and the image reading apparatus is detachably attached to at least one of the reading unit and the conveying unit. And a mounting portion whose bottom surface contacts the mounting surface,
The tray has a tray for supporting a plurality of originals, and a paper feeding unit provided in the loading unit for feeding a plurality of originals one by one between the reading unit and the conveying unit. An image reading apparatus comprising a paper feeding unit set as a writing unit. 5. A reading unit having a rotating body that comes into contact with an original and a reading unit that reads an image of the original that moves relatively by the rotation of the rotating body, and a detachable unit for the reading unit. An image reading apparatus having a conveying unit having a conveying unit that cooperates with the rotating unit to convey a document that is in contact with and is supplied between the reading unit and the reading unit, and the image reading apparatus is detachable from at least one of the reading unit and the conveying unit. And a paper feeding unit having a paper feeding unit for feeding a plurality of documents one by one between the reading unit and the conveying unit, and between the reading unit and the conveying unit provided in the conveying unit. An image reading apparatus comprising guide means for guiding a side edge of a document supplied to the sheet. 6. A first and a second reading unit rotating body that comes into contact with a document, and a rotating body driving unit that drives these rotating bodies,
A reading unit having a reading unit that reads an image of a document that moves relatively by the rotation of the rotating body from between the first and second rotating bodies; An image reading apparatus comprising: a conveyance unit having first and second conveyance unit rotating bodies that conveys a document that is pressed against and is fed between the reading unit and the reading unit, Paper feed having a paper feed unit rotary member that is detachably attached to at least one of the transport units and is driven by the rotator driving unit to feed a plurality of documents one by one between the reading unit and the transport unit. And the peripheral speeds of the paper feed unit rotary body and the first and second reading unit rotary bodies are set to the peripheral speeds of the paper feeding unit rotary body, the first reading unit rotary body, and the second reading unit rotary body. In order of Image reading apparatus being characterized in that constitute the dynamical mechanism. 7. The pressure contact force of the first and second carrier rotating bodies with respect to the first and second reader rotating bodies is that of the first carrier rotating body is the second carrier. The image reading device according to claim 6, wherein the image reading device is larger than the rotating body. 8. A self-propelled mode in which the reading unit is placed on a document and the image of the document is read while moving the reading unit by rotation of a rotating body driven by the rotating body driving unit, and the reading unit. A manual feed mode in which a document is read while moving the document while the document and the transport unit are connected, and an automatic mode in which a plurality of documents are read one by one with the reading unit, the transport unit, and the paper feed unit coupled. 7. The image reading apparatus according to claim 1, further comprising a control unit having a paper feed mode. 9. A manual mode in which the reading unit is placed on a document and the image of the document is read while manually moving the reading unit, and the document is read in a state in which the reading unit and the conveying unit are combined. A control unit having a manual feed mode for reading while moving and an automatic paper feed mode for reading a plurality of originals one by one in a state in which the reading unit, the conveying unit, and the paper feeding unit are combined is provided. The image reading apparatus according to claim 4 or 5, characterized in that 10. The reading unit and the paper feeding unit are detachable from the carrying unit.
The image reading device according to any one of 5 and 6.