JPH01273482A - Picture reader - Google Patents

Abstract

PURPOSE:To use a picture reader for both sheet feeder type and manual type reader by providing a main body where a picture read section and a paper feed drive section are incorporated and a feed paper section coupled with the main body and driven by the paper feed drive section. CONSTITUTION:A motor 37, a main body side gear train 38, a paper feeder side gear train 39, and a paper feed roller 40 are provided and the motor 37 and the main body side gear train 38 form the paper feed drive section and the paper feeder side gear train 39 and the paper feed roller 40 form the paper feed section. Thus, in case of a sheet original, a picture is read as a sheet feeder enabling sure read and if an original of book form or with a large area is desired anyway to be read, the main body only is used as the manual drive type to read the picture.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an image reading device used for inputting figures to be inserted for explanation into sentences created using a word processor, pan converter, etc., or figures for image recognition such as OCR. It is related to.

2. Description of the Related Art In recent years, there has been a demand for inserting graphics in order to make explanations of texts created using word processors (hereinafter abbreviated as word processors), personal computers, etc. easier to understand.

Conventional manual type and sheet feeder type image reading apparatuses that meet these demands will be described below.

6(a), 6(b), and 6(c) are a front view, a top view, and a side view of a conventional manual image reading device, and FIG. 6 is a sectional view taken along line A-A' in FIG. be.

In Figure 6, 1 is the main body, 2 is the start switch, and 3
is the connection cable, and 4 is the word processor itself.

In Figure 6, 6 is a cover glass, 6 is a mirror, 7 is a lens, 8 is a one-dimensional reading sensor, and 9 is a reading (
10 is a light source, 11 is a frame, and 12 is a cover.

The operation of the image reading device configured as described above will be described below. By placing the main body 1 on the image of the original to be captured and pressing the start switch 2, the word processor main body 4 is informed to start capturing the image. Next, manually pull the main body 1 toward you to turn the encoder 9 on.
A period for each line is generated, and a signal of one line period is sent to the word processor main body 4 through the connection cable 3. Asynchronously, the original image for each line is illuminated by a light source 10,
The light passes through a cover glass 6, changes its optical path with a mirror 6, focuses the light with a lens 7, and forms an image on a one-dimensional reading sensor 8. The signal of the original image captured by the one-dimensional reading sensor 8 is transferred to the word processor main body 4 through the connection cable 3. On the side of the word processor main body 4, the signal of the original image is taken in for one line at the rising edge or falling edge of the encoder 9 every one line cycle.

7(a) and 7(b) are a front view and a side view of a conventional sheet feeder type image reading device, and FIG. 8 is a sectional view of the main part thereof.

In FIG. 7, 13 is a main body, 14 is a start switch, 16 is a connection cable, and 16 is a word processor main body.

In Figure 8, 17 is a cover glass, 18 is a mirror,
19 is a lens, 2o is a one-dimensional reading sensor, 21 is a light source, 22 is a paper feed roller, 23 is a frame, and 24 is a cover.

Next, the operation of this device will be explained. In the case of a sheet feeder type, by inserting the document to be captured into the paper feed roller of the main body 13 and pressing the start switch 14, the start of image capture to the word processor main body 16 is notified. Next, the document is transported by the paper feed roller. The original image is illuminated by a light source 21, passes through a cover glass 17, changes the optical path with a mirror 18, is focused by a lens 19, and is sent to a one-dimensional reading sensor 2.
Focuses on 0. A line-by-line document image signal captured in synchronization with paper feeding is sent to the word processor main body 1e via the connection cable 1.
Transfer through 5. On the side of the word processor main body 16, the signal of the original image is taken in for one line at the rise or fall of each line of the synchronization signal.

Problems to be Solved by the Invention However, in the manual type device described above, reading in the sub-scanning direction depends on the skill level of the operator, and reliable reading is not always possible.

Further, with the above-described sheet feeder type configuration, even if a book or a large flat document was desired to be read, it was not possible to read the same.

The present invention solves the above-mentioned conventional problems.The present invention functions as a sheet feeder that can reliably read sheet-shaped originals, and functions as a manual type image reader when reading books or large flat originals. The purpose is to provide equipment.

Means for Solving the Problems In order to achieve this object, an image reading apparatus according to the present invention includes a main body in which an image reading section and a paper feed drive section are integrally constituted, and a main body connected to the main body and driven by the paper feed drive section. It has a configuration including a driven paper feeding section.

Function: With this configuration, when the document is in sheet form, the image can be read as a sheet feeder that can be reliably read.
If you really want to scan a book or a large flat document, you can scan the image manually.

EXAMPLE An example of the present invention will be described below with reference to the drawings.

1(A) and 1(B) are a front view and a side view of an image reading device according to a first embodiment of the present invention, and FIG. 2 is a sectional view taken along line BB' in FIG. 1. , and FIG. 3 is C- in FIG. 1.
FIG. 4 is a sectional view taken along line DD' in FIG. 1.

In FIG. 1, 25 is the main body, 26 is a start switch, 27 is a paper feed section, 28 is a connection cable, and 29 is a word processor main body.

In Fig. 2, 30 is a cover glass, 31 is a mirror,
32 is a lens, 33 is a one-dimensional reading sensor, 34 is a light source, 36 is a frame, and 36 is a cover.

In Fig. 3, 37 is a motor, 38 is a gear train on the main body side, 39 is a gear train on the paper feed section side, 40 is a paper feed roller, and the motor 37 and the gear train 38 on the main body side form a paper feed drive section. The paper feeding unit side gear train 39 and the paper feeding roller 40 form a paper feeding unit.

In FIG. 4, 41 is a reading roller, 42 is a decelerator, and 43 is an encoder that generates a signal corresponding to the line period in the reading (sub-scanning) direction.

The operation of the image reading device configured as described above will be described below.

First, when using as a manual type, the main body 26 is placed on the image of the document to be captured and the start switch 2θ is pressed to notify the word processor main body 29 to start capturing the image. Next, by manually pulling the main body 25 toward you, the encoder 43 generates a cycle for each line, and the signal is sent to the word processor main body 29 through the connection cable 28.
send to The original image is illuminated with a light source 34, and the cover glass 3o is
, the optical path is changed by a mirror 31 , the light is focused by a lens 32 , and an image is formed on a one-dimensional reading sensor 33 .

The signal of the original image captured by the one-dimensional reading sensor 33 is transferred to the word processor main body 29 through the connection cable 28. On the word processor main body 29 side, the encoder 43
The signal of the original image is captured for one line at the rising edge f) or falling edge every 12 inches.

Also, when using it as a sheet feeder type, the main body 2
By inserting the document you want to import into the paper feed roller 5 and pressing the start switch 26, the word processor main body 29
9. Notify the start of image capture.

Subsequently, the paper feeding unit side gear train 39, in which power from the motor 37 inside the main body 25 is meshed with the main body side gear train 38, rotates the paper feeding roller 40 to convey the document. A document image is illuminated by a light source 34, passes through a cover glass 30, changes its optical path with a mirror 31, is focused by a lens 32, and is imaged on a one-dimensional reading sensor 33. The signal of the original image captured by the one-dimensional reading sensor 33 is transferred to the word processor main body 29 through the connection cable 28. On the word processor main body 29 side, the signal of the original image is converted into one signal by the rising edge or falling edge of each line of the motor synchronization signal.
Insert the preparative line.

In addition, in the second embodiment, when used as a sea feeder type in the first embodiment, instead of using the motor synchronization signal as the synchronization signal for one line, an encoder signal is used to control the gear on the main body side. Encoder 1m on the train
At L, the signal of the original image is taken in for one line at the rising or falling edge of each line of the encoder.

Although only two mirrors are used for simplicity,
It goes without saying that the main body can be made more compact by using three or four sheets.

Also, if the power supply capacity is insufficient due to the light source, you can connect the DC cable near the connector on the word processor side.
Needless to say, operability is not impaired.

Furthermore, to make the explanation easier, I used a word processor as the main device, but it goes without saying that a pan-converter could also be used.

Effects of the Invention As is clear from the above embodiments, according to the present invention, it is possible to realize an image reading device that takes advantage of the advantages of the conventional sheet feeder type 9-manual type, and improves operability. can.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram of an image reading device according to a first embodiment of the present invention, FIGS. 2 to 4 are sectional views of the same essential parts, and FIG. 6 is a configuration diagram of a conventional image reading device. Figure 6 is a sectional view of the same essential parts, Figure 7 is a configuration diagram of another conventional example, and Figure 8 is a sectional view of the same essential part.
The figure is a sectional view of the main part. 26...Main body, 27...Paper feed section, 29
...Wharf'o Main body, 37...Motor, 40...Paper feed roller.

Claims (2)

[Claims] (1) An image reading device comprising: a main body in which an image reading section and a paper feed drive section are integrated; and a paper feed section connected to the main body and driven by the paper feed drive section. . (2) A first image reading mode in which only the main body is used and the main body is manually moved; and a second image reading mode in which the main body and the paper feed unit are connected and the document is transported by the paper feed drive unit. The image reading device according to claim 1, further comprising a reading mode.