JP3746262B2 - Medium transfer mechanism and image input apparatus having the medium transfer mechanism - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an image input apparatus that places an original on an installation table and optically reads the placed original, and particularly relates to a technique that is effective for a stand-type image input apparatus having a distance between the original and a reading unit. .
[0002]
[Prior art]
[Patent Document 1]
Conventionally, there is a stand-type image input device as an image input device that optically reads a slip, a form, or a handwritten character document as image data. In the case of this stand-type image input apparatus, there is an installation base on which a medium to be input is installed, and the size of the medium that can be placed on the installation base is usually determined. In many cases, such an image input apparatus does not include an autofocus mechanism because of the necessity of downsizing.
[0003]
However, it may be necessary to read a medium larger than the size that can be placed on the installation table. As a countermeasure, Japanese Patent Laid-Open No. 5-145742 describes a method of reading an original in four parts, compressing and synthesizing a read image, and outputting and reading to A4.
[0004]
[Problems to be solved by the invention]
However, the method described in the above document has a problem that the time from reading to output is drastically increased because the read image is compressed and combined. There is also a problem that the apparatus itself becomes large when it is intended to secure a reading range of A3 size.
[0005]
[Means for Solving the Problems]
The present invention relates to an apparatus for optically reading a document placed on a setting table from a remote position, and includes a composite manuscript instrument that can be transported with a reading document widened on the setting table, and relates to a slider for transferring means. Stop.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a medium transfer mechanism according to the present invention will be described below with reference to the drawings.
[0007]
FIG. 1 is a stand-type optical image input apparatus to which a device of the present invention is attached, and an outline of the configuration will be described. As described above, a medium to be read, for example, a device in which the setting table 1 on which a document is placed and the camera 3 that reads an image are separated from each other is called a non-contact type image input device.
[0008]
The stand-type image input device shown in FIG. 1 includes a control unit and a driving circuit board (not shown) under an installation table 1 for installation on a desk or the like. A mechanism unit 3 for reading a document is attached to the upper left of the reading table via a column 5 such as a pipe. The mechanism unit 3 can read an image of the document 2 placed on the installation table 1 via a control unit built in the installation table and an optical image reading element (not shown) controlled by a circuit board. it can.
[0009]
In the image input apparatus of FIG. 1, since there is a distance between the document 2 placed on the installation table 1 and the mechanism unit 3 in which the optical image reading element is incorporated, the document 2 is placed in a plane on the installation table 1. It is important to position the front and rear and left and right within a range that can be read by the mechanism unit 3.
[0010]
For positioning within the plane on the installation table 1, as shown in FIG. 1, upper and left end alignment protrusions 7 are provided on the upper and left ends of the range readable by the mechanism unit 3 on the installation table 1. It is possible to perform simply by pressing the upper end and the left end of the document 2 against the upper end and the left end protrusion 7.
[0011]
For example, the image input apparatus of the present embodiment is mounted on an installation table, and the size of an original that can be read is planned to be up to A4 size for the size of an application form such as a bank and the installation space of a desktop desk or the like. Yes. According to the present invention, it is possible to input an image of a medium larger than a predetermined size by installing a medium transport mechanism.
[0012]
The installation table 1 and the mechanism unit 3 are connected to each other via a pedestal unit 4 and a support column 5. A control board is built in the pedestal unit 4. When the switch 6 provided in front is pressed, the mechanism unit is connected with a cable passing through the support column 4. A signal is sent to 3 to start reading.
[0013]
The installation table 1 has an upper end and a left end alignment projection 7 for pressing the document against a flat surface and positioning it left and right and front and rear, and has antireflection processing that does not reflect the surface. As the reflective BS prevention processing, for example, there is a black painting process. As described above, the purpose of performing the antireflection processing on the surface on which the medium is placed is that the read surface is reflected and becomes brighter than the read original and is read on the basis of the bright portion. Become. Further, if the light is reflected, there is no difference between the original and the light and dark, and the end face (peripheral edge) of the original cannot be detected and the reading range may be erroneously recognized. The non-reflecting black coating process on the surface of the installation table 1 may be a dark color other than black as long as it does not affect the reading mechanism unit 3.
[0014]
FIG. 2 is a perspective view of the medium transfer mechanism according to the present invention, showing a state where the medium transfer mechanism is attached to the image input apparatus of FIG.
[0015]
The structure of the medium transfer mechanism is such that a manuscript composition fitting 10 that has been subjected to a black coating process that does not reflect on the surface and a slider 21 that is transferred to the medium transfer mechanism are locked via the slider fitting 20. (A detailed mounting structure will be described with reference to FIG. 4.) An A3 size original 2A is placed on the original composite metal fitting 10 in accordance with the left end protrusion and the upper end protrusion 9, and the medium transfer mechanism is transferred in the left-right direction by manual operation. Can do. In FIG. 2, the left inner end of the medium transfer mechanism is in contact with the left side of the installation table 3. This position is called a first placement position, for example. The medium transfer mechanism moves to the left in FIG. 2 by rotating the slider 21, and can move to a position where the right inner end of the medium transfer mechanism contacts the right side of the installation table 3. This position is called a second placement position, for example.
[0016]
Next, image input processing of a large-sized medium using the medium transfer mechanism 10 of the present embodiment will be described next. First, as shown in FIG. 2, the medium transfer mechanism 10 is manually pushed to the right and the switch 6 is pressed to read the image. After that, when the medium transport mechanism 10 is manually abutted to the left side and the switch 6 is pressed as in the state shown in FIG. 3 by manual operation, the image read twice is combined by software and an A3 size reading is output.
[0017]
For image composition, there are composition marks 23 as marks on the top and bottom of the central portion on the medium transport mechanism 10, and the composition marks 23 read twice are combined by software as marks. The composite mark 23 is displayed as a triangle (▽) above and below when the document is placed, but may be a mark such as a cross mark as long as an image can be combined.
[0018]
The medium transfer mechanism 10 is transferred manually, but may be transferred automatically using rails or the like. Further, a slide mechanism can be provided in addition to the slider 21 of the transfer means to perform linear reciprocation.
[0019]
Further, when mounting on the medium transfer mechanism 10, the pin fitting 4 locked to the image input device is removed, and the distance between the medium transfer mechanism 10 and the mechanism unit 3 is different from the distance between the installation table 1 and the mechanism unit 3. Is set to a minimum height (about 3 mm) so that the visual field range does not deviate. If the difference in the distance between the medium transfer mechanism 10 and the mechanism unit 3 is large, the read image may be out of focus or the read character may be erroneously recognized.
[0020]
Therefore, the transfer means is a method of moving the slider 21 using the height space on both sides of the image input device. However, if the distance between the mechanism unit 3 and the document can be controlled by changing the lens, a means for transferring it onto the guide fitting 13 may be provided.
[0021]
With respect to the left and right positions of the medium transport mechanism 10 when the original 2A is read, magnets 18 are attached to the left and right of the guide fitting 13, and are read in close contact with the slider bracket 17 locked to the medium transport mechanism 10 by magnetic force. The position is fixed. The magnet used here has a magnetic force of about 300 g and can be easily attached and detached by human power.
[0022]
If there is no restriction on the size of the apparatus, the synthesized document apparatus 10 is transferred as a method of synthesizing the image. However, the mechanism unit 32 is arranged in the center of the A3 size divided into two, and is synthesized. Alternatively, a method may be used in which the composite document device 10 is fixed and the mechanism unit 3 is slid and read.
[0023]
FIG. 4 shows an exploded view of the mounting structure of the medium transfer mechanism according to the present invention.
The medium transfer mechanism is attached by first attaching the guide fixing bracket with the screw 11 from the back of the apparatus. The guide metal fitting 12 and the guide metal 13 are brought into close contact with each other by inserting the guide metal bending projection 14 into the guide metal insertion hole 8 and abutting it. The guide fixing bracket 12 is fixed with screws 11 from two holes on the side surface. The guide fitting 13 is attached in order to suppress a shift when the composite document apparatus 10 is abutted against the left and right positions when the composite document apparatus 10 is reciprocated left and right, and the guide guide plates 15 attached to the upper and lower ends of the guide fitting. The composite guide plate 19 affixed to the back surface of the composite manuscript instrument 10 is slid to suppress the displacement at the left and right positions when the composite manuscript instrument 10 is manually operated.
[0024]
In addition, a holding rubber 16 (see FIG. 5) is affixed to the right inner side of the guide fitting 13, and when the guide fitting 13 is screwed to the guide fixing bracket 12, the holding rubber 16 is in close contact with the right end surface 1A of the installation base. The back and forth of the metal fitting 13 is suppressed. If there are upper and lower play in the guide bracket, it takes time to synthesize the images because the reading range is out of range or the read images on the left and right are rotated and read.
[0025]
Further, a protective sheet 17 (see FIG. 5) is attached to the back surface of the guide fitting 13 so that the surface of the installation base 1 is not peeled off.
[0026]
If the medium transport mechanism 10 is fixed at the position of the left-hand bump state as shown in FIG. 2, it can also read an A4 size or smaller document that does not need to be combined.
[0027]
FIG. 5 shows an exploded view of the guide fitting of the medium transport mechanism according to the present invention.
Guide guide plates 15 are abutted and attached to the top and bottom of the guide metal 13, and protective sheets are attached to the surface and the back surface of the guide metal bending projection 14. The protective sheet on the back is made of sheet metal for the guide fitting, so that the paint on the installation base 1 is prevented by vibration of manual operation of the medium transfer mechanism 10. The protective sheet on the upper surface is affixed to prevent deformation of the medium transfer mechanism 10.
[0028]
The square holes of different sizes are provided above and below the guide fitting 13 so that the medium transfer mechanism 10 cannot be mounted upside down.
[0029]
FIG. 6 shows an exploded view of the medium transfer mechanism 10 according to the present invention.
[0030]
On the medium transfer mechanism 10, a composite mark 23 for compositing an image and a read range mark 24 indicating a read range are printed from the non-reflective black paint.
[0031]
Further, the upper end and left end alignment projections 9 for positioning the document are locked on the medium transfer mechanism 10 so that the position of the document to be read can be easily aligned.
[0032]
A side panel 22 is locked to the side surface of the medium transfer mechanism, and serves as a handle for transfer. The slider 21 is fixed to the medium transfer mechanism 10 with a screw (not shown) via the slider 20. If the desk or the like on which the image input device is installed is uneven, the slider 21 is loosened when the screw is loosened. Can be adjusted so that the slider can be installed.
[0033]
【The invention's effect】
According to the present invention, in a non-contact type image input apparatus that performs optical reading, a large original can be read with a compact configuration by forming a composite original instrument.
[Brief description of the drawings]
FIG. 1 is an external view of a non-contact type stand type optical reader according to the present invention.
FIG. 2 is a perspective view in which a medium transport mechanism is attached to the reading apparatus according to the present exemplary embodiment and an attempt is made to read the left side of a document.
FIG. 3 is a perspective view in which a medium transport mechanism is attached to the reading apparatus according to the present exemplary embodiment and the left side of the original is read.
FIG. 4 is a perspective view illustrating a schematic configuration of a reading apparatus and a medium transfer mechanism of the present embodiment.
FIG. 5 is a perspective view illustrating a configuration of a guide metal fitting of the present embodiment.
FIG. 6 is a perspective view illustrating a configuration of a medium transfer mechanism of the present embodiment.
[Explanation of symbols]
1: installation table, 1A: installation table right end surface, 2: document (A4 size), 2A: document (A3 size), 3: mechanism, 4: pin bracket, 5: support, 6: switch, 7: upper end Left end alignment protrusion (reading device part), 8: guide fitting insertion hole, 9: upper end and left end alignment protrusion (medium transfer mechanism), 10: medium transfer mechanism, 11: screw, 12: guide fixing bracket, 13: guide bracket , 14: guide fitting bending projection, 15: guide guide plate, 16: holding rubber, 17: protective sheet, 18: magnet, 19: synthetic guide plate, 20: slider fitting, 21: slider, 22: side panel , 23: Composite mark, 24: Reading range mark

Claims (5)

In an image input device for inputting an image of a medium,
An input unit for inputting an image of a medium in the image input range;
A support portion on which the input portion is mounted;
A stand for supporting the support part;
A medium transfer mechanism that is movably installed on the table and on which the medium is placed ;
The image input apparatus , wherein the medium transfer mechanism includes a combination mark used for combining images input to the input unit and a positioning unit of the medium . The image input device according to claim 1,
The medium transfer mechanism is movable from a first installation position to a second installation position;
The first installation position is a position where a half area of the placed medium exists in the image input range,
2. The image input apparatus according to claim 2, wherein the second installation position is a position where the remaining half area of the medium placed above is present in the image input range. The image input device according to claim 2,
The medium transfer mechanism has a slider,
The image input apparatus is moved from the first installation position to the second installation position by the slider. The image input device according to claim 1, wherein
An image input apparatus according to claim 1, wherein a medium placement surface of the medium transfer mechanism is black. A medium transfer mechanism mounted on a medium installation base of a non-contact type image input apparatus that inputs an image of a medium in an image input range,
Movable from a first installation position to a second installation position on the installation table;
The first installation position is a position where a half area of the placed medium exists in the image input range,
The second installation position is a position where the remaining half area of the medium placed above is present in the image input range ,
A composite mark used for combining the image of the half area of the medium input at the first installation position and the image of the other half area of the medium input at the second installation position;
A medium transport mechanism comprising a positioning unit on the medium transport mechanism for the medium to be placed above .

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