JPS6239587B2 - - Google Patents

Description

[Detailed Description of the Invention] It is a common experience that the image information that needs to be copied is part of the original that is to be copied. In this case, since copies are made using copy paper of a predetermined size depending on the performance of the copying machine, there is a problem that copy paper is wasted.

Not limited to copying machines, but in general, if only the necessary image information from a part of a document can be read,
Since many advantages can be obtained, research is progressing on a partial reading device that can easily obtain image signals corresponding to areas where necessary image information exists in a document. Since then, many proposals have been made regarding partial reading devices, partial recording devices, etc.
(See specification No. 15349).

Now, in order to easily convert the necessary image information part of the document into an image signal, the partial reading device uses the body of the reading device, which has a built-in solid-state image sensor that performs main scanning, on the document. The image information is manually moved in a direction perpendicular to the main scanning direction to perform sub-scanning to obtain an image signal corresponding to the required image information area on the document. In order to correctly read the image information in the target image information area, it is necessary for the reading device to have its running direction correctly determined and to be able to run on the document surface in a straight line. Needed.

By the way, making the reading device travel in a straight line on the document surface means:
Since this means restricting the running direction and eliminating the degree of freedom, for example, a wide guide roller is used in the running mechanism so that the paper can run on the document surface in a straight line. In that case,
If the running direction of the reading device at the start position of the sub-scanning is not determined properly, the reading device may shift out of the image information area to be read when the scanning device moves during the sub-scanning. , the direction of travel of the reading device at the start of travel must be determined precisely.

Conventionally, in order to solve the above-mentioned problem, the image information that the reading device is reading is guided by an auxiliary guiding device that has a function of regulating the direction of movement of the reading device. Attempts have been made to be able to correctly read the image information in the area.

FIG. 1 is a perspective view of an example of the above-mentioned guiding auxiliary device. As shown by the imaginary line in the figure, when the reader W is fitted and the reader W is manually moved in the direction of the arrow Y in the figure, the moving direction of the reader W is aligned with the frame 1. Therefore, it has been made possible to ensure proper regulation. In FIG. 1, reference numeral 2 causes the reading operation of the solid-state image sensor provided in the reading device W to be started every time the amount of movement of the reading device W in the sub-scanning direction reaches a certain value. This optical pattern 2 is used to generate a timing pulse, and the above-mentioned timing pulse is generated by this optical pattern 2, a light source and a photoelectric conversion element provided in the reading device W.

By using the guiding auxiliary device having the configuration shown in the first figure, the reading device W can correctly perform sub-scanning in the extension direction of the frame 1, which is determined depending on the installation manner of the frame 1. By correctly placing the frame 1 on the image information area to be read in the document, the image information in the image information area can be correctly read by the reading device. Since the conventional guiding auxiliary device shown in the figure does not have flexibility, when the document to be read has a curved surface, such as a book, It is not possible to read in good condition, and
In addition to being inconvenient in that the guiding auxiliary device is configured separately from the reading device W, there are other problems such as high costs.

The present invention provides a guide device for the running direction of a reading device, which makes it possible to easily obtain a manual sub-scanning type reading device in which the problems of the conventional reading device described above are satisfactorily solved. Hereinafter, the specific contents of the guide device for the traveling direction of the manual sub-scanning type reader according to the present invention will be explained in detail.

Fig. 2 is a perspective view of a manual sub-scanning type reader equipped with a guide device in the running direction of the present invention, and Fig. 3 is a vertical cross-sectional side view of the same. Illustrations of constituent parts are omitted.

In FIG. 2, W is a manual sub-scanning type reader, and inside its body 3 there is a solid-state image sensor that performs main scanning and converts the image information of document 0 into an image signal, and a device that illuminates the surface of the document. an imaging optical system to form an image of the image information on the document surface onto a solid-state image sensor, and a timing pulse generator to determine the timing of the start of the reading operation by the solid-state image sensor (when the reading device is in the sub-scanning direction). A timing pulse generator (a timing pulse generator capable of generating a timing pulse every time the robot moves a predetermined distance), a view indexer for a reading area provided as necessary, and the like are configured.

In FIG. 3, 4 is a running roller, 6 and 7 are rollers, and in FIGS. 2 and 3, S is a flexible thin plate member. One end of the flexible thin plate member S is fixed to a shaft 5 provided in the body 3 of the reading device W, and then wound around the shaft 5, and the other end is wound around the shaft 5. The machine body 3 is passed between the rollers 6 and 7 and then passed through the pull-out hole 8 provided at the lower end of the front surface of the machine body 3.
is pulled outward.

The shaft 5 around which the flexible thin plate member S is wound is moved such that the flexible thin plate member S can be wound around the shaft 5 by, for example, biasing by a spring. Since it is configured to show the mode, the fuselage 3 can be inserted through the extraction hole 8.
A stopper 9 having a size larger than the pull-out hole 8 is provided at the tip of the flexible thin plate-like member S that is pulled out. To prevent a person from entering the inside of a body 3 through a draw-out hole 8.

Pinch the stopper 9 with your fingers and pull it forward,
The flexible thin plate member S fixed to the stopper 9 is rotated to the outside of the fuselage 3 through the pull-out hole 8 of the fuselage 3 while rotating the shaft 5 against the spring biasing the shaft 5. It's brought out. When you release your finger from the stopper 9, the rotation of the shaft 5, which is biased by a spring, causes the flexible thin plate member S to move inside the fuselage 3 until the stopper 9 is caught in the pull-out hole 8. It is wound up on the shaft 5 of.

In addition to biasing the shaft 5 with a spring, a well-known mechanism using a ratchet and a ratchet pawl is used to release the flexible thin plate member S from the stopper 9 when it is pulled out of the body 3. Of course, the flexible thin plate member S may not return immediately into the fuselage 3 even if the finger is released, and in this case, the flexible thin plate member S
It goes without saying that the flexible thin plate-like member S can be wound onto the shaft 5 within the body 3 by slightly shockingly pulling out the ratchet pawl and removing the ratchet pawl from the ratchet.

Now, the above-mentioned flexible thin plate-like member S is provided with a reading area designating part I that can designate a reading area with a width a corresponding to the reading width a of the reading device. The above-mentioned reading area indicating portion I is formed in a portion of the flexible thin plate-like member S that corresponds to the reading target area to be read by the reading device. The configuration of the reading area indicating portion I formed on the member S includes a structure in which a portion of the flexible thin plate member S corresponding to the reading area indicating portion I is removed, or a flexible thin plate member. If S is transparent, then
It is possible to adopt a configuration in which the boundary of the portion corresponding to the reading area designation portion I is displayed, for example, with a black line, or any other appropriate configuration mode.

As the thin plate-like member S having flexibility, a film made of a polymeric material can be suitably used, but materials other than those exemplified above may also be used.

In the manual sub-scanning type reader of the present invention configured as described above, the reader is placed on the document 0 to be read, and the flexible thin plate-like member S is pulled out of the body 3 by pinching the stopper 9 with one's fingers. , and change the installation state of the body 3 of the reading device W until the reading area indicating section I matches the image information area to be read in the document 0, After confirming that the reading area indicator I provided on the flexible thin plate-like member S pulled out from inside the machine body 3 correctly corresponds to the image information area to be read in the document 0, Scanning is started and reading is performed.
In the reading operation described above, the flexible thin plate member S may be gradually housed in the body 3 as the reading device W travels, or the reading operation may be performed as described above. Once the reading device has been positioned at the start, the flexible thin plate member S is immediately stored in the body 3 of the reading device W, and then moved for sub-scanning. Good too.

As is clear from the detailed explanation above, the guide device for the traveling direction of the manual sub-scanning type reader of the present invention is built in the guide device itself in the body of the reader, and the guide device itself is built into the body of the reader. When starting reading, the guide device can be pulled out from inside the machine and the installation position of the machine can be adjusted so that the image information can be read correctly by the reading device, and the running status can also be checked. According to the device of the present invention, all of the conventional problems mentioned above can be satisfactorily solved.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional device, FIG. 2 is a perspective view of essential parts of the device of the present invention, and FIG. 3 is a longitudinal sectional side view of the same. W...Reading device, 0...Document, S...Flexible thin plate member, I...Reading area indicating section,
3... Body, 4... Traveling roller, 5... Axis,
6, 7...Roller, 8...Drawer hole, 9...Stopper.

Claims (1)

[Claims] 1. Inside the body of the reading device, the reading device is configured to perform sub-scanning by being manually moved in the sub-scanning direction orthogonal to the main scanning direction in which main scanning of a predetermined reading width is performed. In addition to incorporating a flexible thin plate-like member that can be freely pulled out in the forward direction of travel and stored in the interior of the aircraft body,
A guide device for the running direction of a manual sub-scanning type reader, which comprises a flexible thin plate-like member as described above, and a reading area indicating portion capable of indicating a reading area with a width corresponding to the reading width of the reading device.