JPH01157164A - Original reader - Google Patents

Abstract

PURPOSE:To employ both reading systems, a face-up system and a face-down system, by switching an optical scanner based on which original on a first original platen or a second original platen is read. CONSTITUTION:In case of desiring to read the original by the face-up system, the fact that the reading direction of the optical scanner B is set in a direction from upside to down side is confirmed, and the original 1 is placed with facing up on the original platen 2, and it is pressed with a cover 3. And an optical scanner moving mechanism C is operated, and the scanner B is moved along the original platen 2, then, the original is read. Meanwhile, in case of reading the original by the face-down system, the reading direction of the scanner B is inverted so as to be set in the direction from down side to upside by an optical scanner reading direction inversion mechanism D. And after the second original platen 10 is turned down on the original platen 2, the original 1 is placed with facing down on the original platen 10, and the mechanism C is operated, and the scanner B is moved along the original platen 10, then the original is read.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a document reading device, and particularly to a device for reading a stationary document.
The present invention relates to a document reading device that can suitably read documents in both ace-up and face-down directions.

[Conventional technology]

Conventional general document reading devices have a so-called 7-step process in which a document is set face down on a transparent document table such as a glass plate, and the document is optically scanned from below the document table and the image is photoelectrically converted.
It was a down-to-earth style.

However, with such a seven-step down type reading device, it is difficult to check for misalignment, folds, wrinkles, etc. of the document. Further, when the manuscript is a book and each member is to be read, the pages must be turned, so it is necessary to lift and reset the manuscript each time.

[Problem that the invention seeks to solve]

As a method to solve the above-mentioned drawbacks of the conventional technology,
A face-up type reader has been devised. That is, as described in JP-A-55-157765, 1.
In this device, a document is placed face up on a document table, and the document is optically scanned from above downward.

However, even with this method, if the original is a thick book, it becomes difficult to set the original), and if the original is wide, it is difficult to set the original, making it difficult to read.
The drawback was that some manuscripts were unreadable.

SUMMARY OF THE INVENTION An object of the present invention is to provide an improved document reading device that can read both face-up and face-down documents and can suitably handle a variety of documents.

[Means for solving problems]

In view of the fact that the above-mentioned drawbacks of the prior art are due to the fact that conventional document reading devices are only compatible with either the face-up method or the face-down method for reading stationary documents, the present invention has the following advantages. The present invention provides a document reading device that can select either method depending on the configuration.

That is, the document reading device of the present invention is a document reading device that places a document on a document table and optically scans and reads the surface of the document. a first document table on which the document is placed, and a second document table, which allows the document placed with the surface to be read facing downward to be seen from below, and is arranged parallel to the first document table; an optical scanning body that moves facing at least one of the first and second document tables and reads a document placed on the document table; The present invention is characterized by comprising a switching means for switching the optical scanning body.

It is desirable that the second document table has a hinge mechanism on one side so that it can be flipped up when reading the document placed on the first document table.

When the optical scanning body has a single linear reading section facing the first or second document table, the switching means is configured to switch between the linear reading sections.

This serves as a means to reverse the direction of the section. In this case, it is necessary to reverse the moving direction of the optical scanning body or the electronic scanning direction so that the left and right sides of the image are not reversed when the direction is reversed.

Further, when the optical scanning body has two linear reading portions facing the first and second document tables, the switching means is configured to switch between the two linear reading portions. It is only necessary to selectively activate one of them.

[Effect]

According to the above configuration of the present invention, the original is placed facing upward on the first document table, and the optical scanning body that optically reads the document surface from above to downward moves along the upper surface of this document table.
Can be read face-up.

Conversely, it can also be read using the face-down method as described below.

That is, the optical reading direction of the optical scanning body is switched from downward to upward, contrary to the face-up mode. Further, a second document table is provided above the optical scanning body and parallel to the movement of the optical scanning body), and a document is set on this in a face-down direction. Then, the optical scanning body with the reading direction switched is moved along the second document table, and the document is read through the document table. In this way, it can be easily read even with the face-down method.

Therefore, both reading systems can be used, and various types of originals can be handled satisfactorily.

〔Example〕

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

FIG. 1 is a perspective view of a document reading device according to the present invention.

First, the configuration of the device and the operation of each part will be explained.

A is a face-up document setting section where the document is placed in a 7-ace up state, B is an optical scanner having a linear reading mechanism that optically reads a linear image of the document, and C is an optical scanner B.
D is the optical scanning body moving mechanism that moves the original.
Optical scanning body reading direction reversing mechanism unit that reverses the reading direction of the optical scanning body when reading with the stand-up method and when reading with the face-down method. This is a face-down manuscript installation section.

Each part will be explained in more detail below.

The face-up document setting section A is designed to place the document 1 in the 7-ace up state on the first document table 2, and to set the original document 1 by holding it down with the document cover 3 made of a transparent plate such as plastic or glass. There is.

As shown schematically in FIG. 2, the optical scanning body B illuminates the original 1 with a light source 21 such as a light emitting diode array, and converts the image of the original into a charge-coupled device (CAN) using a SELFOC lens 23 or the like. The image is formed on an image sensor 22 such as the like and read. Therefore, in the case of FIGS. 1 and 2, this optical scanning body B optically reads the document surface from top to bottom. That is, in this case, reading will be performed in a face-up manner.

The optical scanning body moving mechanism section C includes a carriage 4 that supports the optical scanning body B, a bearing 5 that supports the optical scanning body B via this carriage, a guide rail 6 on which this bearing slides, a pulse motor 7, and the like. Then, the carriage 4 is moved by pulling it with a wire 8 along the guide rail 6 by the drive of the pulse Tanabata 7, and the optical scanning body B is moved to the first document table 2.
It is designed to be moved along the top. This movement and
By electronic scanning with an optical scanning body, the image of the document can be converted into an electrical signal and read.

The optical scanning body reading direction reversing mechanism part is optical scanning body BK.
An optical scanning object direction reversing knob (switching means) 9 attached to a directly connected shaft (not shown) and a bearing (not shown) built into the carriage 4 are constructed in the same manner. The optical scanning body B is designed so that it can be rotated around its length direction. A locking mechanism is provided so that the reading direction of the optical scanning body B can be reversed and fixed either from top to bottom or in a direction 180 degrees opposite to this, that is, from bottom to top.

The face-down document mounting table E includes a second document table 10 made of a transparent plate such as glass or plastic, and a table in which this table is tilted so that it is parallel to the first document table 2, as shown in the figure. It consists of a hinge mechanism section 11 that can be flipped up, and legs 12 that support itself when it is laid down on the first document table 2.

Next, the multiple document reading operations performed by the apparatus of the present invention will be comprehensively explained.

First, if you want to read the manuscript using the 7-step method,
Make sure that the reading direction of the optical scanning body B is from top to bottom, then place the original 1 on the first original table with 7 aces up as shown in Figure 1, and hold it with the original cover 3. . Then, the optical scanning body moving mechanism C is activated to move the optical scanning body B along the document table for reading.

Reading with this method has the advantage of making it easy to check for misalignment, folds, and wrinkles in the document. Also, the first document table 2
If you make it with a mechanism that sinks when you press it from above, and make it with appropriate cushioning material, you will be able to read thin book manuscripts using this 7-step sweep method. K like this
This has the advantage of making it easier to turn the pages when reading each member.

On the other hand, when reading a manuscript face-down,
First, the reading direction of the optical scanning body B is reversed from the bottom to the top using the optical scanning body reading direction reversing mechanism. Then, the second document table 10 is laid down onto the first document table 2. Next, as shown in FIG. 3, the document is placed face down on the second document table 10, and the optical scanning body moving mechanism C is activated to move the optical scanner Ill along the document table and read it.

If you read with this method, you can read even if the manuscript is a thick book or a wide manuscript.

As described above, according to the present invention, both the face-up method and the 7-step-down method can be easily realized.

Note that when switching from the face-up method to the 7-step-down method, care must be taken to ensure that the left and right sides of the image are not reversed. When switching between the two types, it is sufficient to simultaneously reverse either the moving direction of the optical scanning body or the direction of electronic scanning within the optical scanning body.

The optical scanning body B described above includes a light source lens and an optical sensor, but is not limited thereto, and may be an optical scanning body consisting only of a light source and a mirror. In this case, the sensor is placed somewhere else, and the structure is such that the light is transported there.

In addition, the reading direction reversal mechanism of the optical scanning body is not limited to the mechanical method described above, but for example, an optical scanning body that can be read in both directions, from the top to the bottom and from the bottom to the top, and electrically. It is also possible to utilize one side and switch the other.

〔Effect of the invention〕

According to the document reading device of the present invention, documents can be read using either a face-up method or a face-down method.

Therefore, normal-sized sheet documents and thin book documents can be scanned in the face-up mode, making it easy to check for misaligned documents, folds, and wrinkles, and to easily turn pages. become.

Additionally, thick books and wide originals can be read face-down.

In this way, there is an advantage that it can suitably handle various types of originals.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the structure of an apparatus according to an embodiment of the present invention, and FIGS. 2 and 3 are structural views to supplement the explanation of its operation. A...Face-up document placement section B...Optical scanning body C...Optical scanning body moving mechanism section D...Optical scanning body reading direction reversing mechanism section E...Face-down document placement section 1.・・Document 2・・First document table 3・・Document cover 4・・Carriage 5・・Bearing 6・・Guide rail 7・・Pulse motor 8・・Wire 9・・・Optical scanning Body direction reversing knob 10...Second document table 11...Hinge mechanism section 12...Document table support foot 21...Light source 22...Image sensor 23...Selfoc lens.

Claims (1)

[Claims] 1. In a document reading device that places a document on a document table and optically scans and reads the surface of the document, a first document is placed with the surface to be read facing upward. a second document table, which is arranged parallel to the first document table and is arranged parallel to the first document table, and is arranged parallel to the first document table; an optical scanning body that moves to face at least one of the tables and reads a document placed on the document table; and a switch that switches the optical scanning body depending on whether the document on the first or second document table is to be read. A document reading device characterized by comprising: means. 2. The second document table has a hinge mechanism on one side thereof,
The document reading device according to claim 1, which is flipped up when reading the document placed on the first document table. 3. The optical scanning body has a single linear reading section facing the first or second document table, and the switching means reverses the direction of the linear reading section. Manuscript reading device as described. 4. The optical scanning body has two linear reading sections each facing the first and second document tables, and the switching means selectively operates one of the two linear reading sections. A document reading device according to claim 1.