JPH0524717A - Imaging device - Google Patents

Abstract

(57) [Summary] [Purpose] In a photographing device having a sheet feeding roller for feeding a sheet-shaped subject and a separation roller for separating the subject one by one, the separation roller can be automatically adjusted according to the subject thickness. . [Structure] A paper thickness detection roller 5 is provided on the way of the conveyance path of the subject S.
1, 52 are provided, the movement of the detection roller 52 is detected by the paper thickness detection sensor, and the separation state of the separation roller 3 is automatically set to the optimum position based on the detected information.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image recording apparatus for recording a sheet document such as a check on a recording medium such as a microfilm.

[0002]

2. Description of the Related Art A conventional device of this type will be described with reference to FIG. In the figure, a paper feed tray 1 is provided on which a subject S is stacked and which is inclined downward toward the right side in the drawing.
A pair of upper and lower paper feed rollers 2 and a separation roller 3 are arranged in the upper and lower sides, and the subject S is slid along the inclined surface of the paper feed base 1 and the tip thereof is abutted against the paper feed roller 2. . Then, the uppermost subject S is fed into the apparatus by the rotation of the paper feed roller 2, and at this time, by rotating the separation roller 3 in the direction opposite to the direction in which the subject S is fed into the apparatus, the overlapping subject S is removed. Separated one by one. The subject S separated one by one, the belt 7 wound around the first roller 4, the second roller 6 and the outer roller 5,
The image is sent to the imaging unit A by the first transport roller 8 paired with the first roller 4, the large-diameter guide roller 9, and the second transport roller 10 paired with the second roller 6. A pair of parallel guide glasses 11, a pair of illumination lamps 12, and a first reflection mirror 13 forming a part of an optical system are arranged in the photographing section A.
Therefore, when the transported subject S passes between the pair of parallel guide glasses 11, the front and back of the subject S are illuminated by the illumination lamp 12 so that image information is formed on the microfilm.

The subject S that has passed through the photographing section A has a belt 17 wound around a third roller 14, a fourth roller 15 and an outer roller 16, and a third conveying roller 1 paired with the third roller 14.
9, the fourth conveyance roller 18 paired with the fourth roller 15, and the large-diameter roller 20 eject the sheet to the outside of the apparatus. The discharged subject S hits the standing portion 21a of the stacker 21 and is stacked on the stacker 21 in order.

Next, the parts of the feeding roller 2 and the separating roller 3 will be further described with reference to FIGS. The subject S to be photographed is various, such as checks, documents and slips.
As shown in 0, there is an overlap amount a of the feeding roller 2 and the separation roller 3 according to the subject. Therefore, in order to improve the transportability of the subject, it is necessary to adjust the overlap amount a to the optimum value depending on the subject. Therefore, in FIG. 11, the power from the main motor (not shown) is applied to the belt 3
1 through the pulley 32 to the feeding roller shaft 2a supported by the bearing 30 in the main body of the apparatus, the feeding roller 2 fixed to the feeding roller shaft 2a rotates, and the feeding roller shaft 2a moves from the pulley 33 to the pulley 33. , Belt 34, pulley 35
Is transmitted to the separation roller drive shaft 3b supported by the bearing 30 in the apparatus main body. Then, it is transmitted to the separation roller shaft 3a through the rubber ring 36, and the separation roller 3 fixed to the separation roller shaft 3a is rotated. The separation roller unit includes a separation roller rotation base 3 that supports a separation roller shaft 3a with a bearing 30.
7, a separation roller support 38 for supporting the separation roller rotation base 37 by a rotation shaft 39, an adjustment cam 42, an adjustment shaft 43 fixing the adjustment cam 42, tension springs 40 and 41, and an adjustment shaft 43. It is composed of an adjustment dial 44 fixed to one end.

The separating roller rotation base 37 is always rotated clockwise in the state shown in FIG. 9 by the springs 40 and 41 hooked on the spring hooking portion 37b and the spring hooking portion 38a of the separation roller supporting base 38. Has been pushed up. The protruding portion 37a of the separation roller rotation base 37 hits the adjustment cam 42, and the position of the separation roller 3 is set. Further, the separation roller 3 is rotated by manually rotating the adjustment dial 44 so that the adjustment cam 42 is rotated and moved up and down together with the separation roller rotation base 37 to adjust the overlap amount a with the feeding roller 2.

[0006]

However, in the above-mentioned conventional example, the position of the separation roller 3 must be manually adjusted by the subject S. With such means, it is necessary to pass through the subject S many times to check the separation performance, which is troublesome.

It is an object of the present invention to eliminate the drawbacks of the above-mentioned conventional example and to provide an image pickup apparatus capable of easily adjusting the separation roller to the optimum position.

[0008]

In order to achieve the above object, the present invention provides at least a sheet feeding roller for feeding a sheet-like object and a separating roller for separating the object one by one and conveying it into the apparatus. In the image capturing device, a paper thickness detection sensor for measuring the paper thickness is provided in the middle of the carrying path so that the separation state can be automatically set to the optimum state of the subject from the information obtained by the paper thickness detection sensor. It was done. In addition, the information from the paper thickness detection sensor is displayed,
The separation state may be automatically set by an external input. Further, the paper thickness detection sensor may detect double feeding of the subject and change the paper discharge port.

[0009]

In the photographing apparatus having the above structure, the thickness of the object is measured by the paper thickness detection sensor, and the position of the separating roller can be automatically set to the optimum position based on the data, so that the trouble of manual adjustment is eliminated. Can be excluded.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.
It will be described based on. FIG. 1 is a schematic configuration diagram of a rotary type camera having a double feed detecting means as an image pickup device, FIG. 2 is a configuration diagram of a subject thickness detection unit, and FIG. 3 is a front view of a feeding roller and a separation roller portion. FIG. 4 shows a block diagram for the automatic adjustment of the separation rollers. Since the object transporting section and the exposure / photographing section are the same as those in the conventional example shown in FIGS. 9 and 11, the same parts are denoted by the same reference characters A, S,
1-21, 31-43 are attached and the description thereof is omitted.
In FIG. 1, 50 is a transmission roller, 51 and 52 are paired paper thickness detection rollers, and the rollers 50 and 51 and the rollers 51 and 52 are in pressure contact with each other. Then, the rotational force from the feeding roller 2 is transmitted through the transmission roller 50 to rotate the paper thickness detection rollers 51 and 52 in the directions of the arrows in the figure. Further, a paper sensor 49 for detecting passage of the subject S is provided between the first transport roller 8 and the guide roller 9.
Is provided. In the block diagram of the object thickness detection unit composed of the paper thickness detection rollers 51 and 52 in FIG. 2, both ends of the roller shaft 51a of the paper thickness detection roller 51 are firmly supported by bearings 53 to the main body of the apparatus. The thickness detecting roller 52 has a fixed shaft, that is, one end of the detecting shaft 52a, which is firmly fixed to the main body of the apparatus by a bearing 54a and serves as a fulcrum of the detecting shaft 52a during detection, and the other end is supported by a bearing 54b. The paper thickness detecting roller 52 is pressed by the paper thickness detecting roller 51 by being urged by the spring 55 in the upward direction (arrow a direction) in the figure. Therefore, the subject S
When the sheet passes between the paper thickness detection rollers 51 and 52, the subject S
The bearing 54a serves as a fulcrum depending on the paper thickness of the paper, the paper thickness detection roller 52 moves in the direction of arrow b, and the left end of the shaft 52a pushes down the shaft 56a of the paper thickness detection sensor 56 in the direction of arrow c in the figure. Then, the paper thickness detection sensor 56 outputs an output according to the movement amount of the shaft 56a and sends the output to the arithmetic circuit described later.

Next, in the front view of the separation roller portion shown in FIG. 3, the separation roller rotation base 37 is rotated by the separation roller adjusting pulse motor 60 so that the rotation amount thereof is changed by the gears 61 and 62.
It is transmitted to the adjustment shaft 43 via the and is moved up and down by rotating the adjustment cam 42. When the separation roller automatic adjustment is performed, the set button 7 in FIG.
When 0 is pressed, a signal is sent from the control circuit 71 to the separation roller adjusting pulse motor 60, and the separation roller is lowered to the lower limit portion. At this time, the data in the memory section 72a of the arithmetic circuit 72 becomes 0 and is reset. Therefore, one subject is fed into the apparatus from the single paper feed table. When passing between the paper thickness detection rollers 51 and 52, the paper thickness is detected by the paper thickness detection sensor 56 as shown in FIG.
sent to a. When it passes under the paper sensor 49, the movement amount sent to the memory unit 72a of the arithmetic circuit 72 is sent to the control circuit 71, and the separation roller adjustment is performed by an amount according to the movement amount measured by the paper thickness detection sensor 56. Pulse motor 60
Is rotated to move the separation roller 3 to a position corresponding to the paper thickness of the subject.

5 and 6 show a second embodiment of the present invention. To simplify the description, the same parts as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted. In the first embodiment described above, in the case of automatic adjustment, the set button must be pressed every time the subject is changed, and the adjustment is somewhat inefficient, so in this embodiment, the output from the paper thickness detection sensor 56 is displayed on the display unit 80. The display unit 80 is interlocked with a switch for displaying and further moving the separation roller 3 up and down from the outside. That is, in FIG. 6, the value measured by the paper thickness detection sensor 56 is sent to the arithmetic circuit 72, the sent movement amount is sent to the display unit 80 through the control circuit 71, and the paper thickness is displayed on the display unit 80. On the other hand, the control circuit 7
A signal is sent from 1 to the separation roller adjusting pulse motor 60, and the separation roller adjusting pulse motor 60 rotates to move the separation roller 3 to the optimum position of the subject S. Further, the separating roller 3 can be moved by the adjusting buttons 82 and 83 shown in FIG. 5, the adjusting button 82 lowers the number on the display section 80, and the adjusting button 83 raises the number on the display section 80. When the display section 80 is set to the numerical value desired by the user by pressing the adjustment button on the display section 80, the signal is output by the arithmetic circuit 72.
Is sent to the separation roller adjusting pulse motor 60 from the control circuit 71 to adjust the separation roller 3. As a result, the subject S1 displayed as 0.050 on the display unit 80 is photographed, then the subject S2 displayed as 0.100 on the display unit 80 is photographed, and when the subject S1 is photographed The separation roller 3 can be moved to the optimum position by setting the adjustment button 82 of the display unit 80 to 0.050 without sending S1 to adjust the separation roller 3. Further, even if the subject has the same thickness, the separation performance may be different due to the difference in the friction coefficient on the surface, and in this case, the separation roller 3 once set is used.
The position of the separation roller 3 can be reliably set by adjusting the number on the display unit 80 as a guide.

7 and 8 show a third embodiment of the present invention. In the first and second embodiments described above, the separation roller position is automatically adjusted or finely adjusted. However, since two or more objects may be overlapped and overlapped, this embodiment does not perform shooting when overlapped feed is performed. It is prohibited, and the discharge port is separate from the place where a normal subject is discharged. That is, in order to adjust the separation roller 3, the paper thickness detection sensor 56
By detecting the sheet thickness data of the subject S (for example, α) in the memory unit 72a of the arithmetic circuit 72, the subject thickness data is calculated every time the conveyed subject S passes between the sheet thickness detection rollers 51 and 52. It is transmitted to the circuit 72, and the memory unit 72
The value α of a is compared. Therefore, when the multi-feed is performed, the paper thickness data becomes 2α or more. In that case, a signal is sent to the control circuit 71.
Then, a photographing prohibition command is transmitted to the photographing unit A, and a command to set a separate discharge port 90 for the discharge port is transmitted. The signal transmitted from the control circuit 71 causes the separation claw 92 arranged above the stacker 21 to move from the position indicated by the chain double-dashed line in FIG. The sheet is discharged onto another sheet discharge plate 93. In this way, the paper thickness detection sensor 56 can detect the double feed of the subject, and by changing the paper discharge location after detecting the double feed, it can be immediately distinguished from the accurately photographed one, and the post-processing is easy. Is.

[0014]

As described above, according to the present invention, the paper thickness detecting sensor for measuring the paper thickness is provided in the middle of the conveying path, and the separation roller is moved and adjusted according to the measured value, so that it can be manually operated as in the prior art. The complexity of adjustment is eliminated, and accurate setting is possible. Further, a display unit for displaying information from the paper thickness detection sensor is provided, and if the user remembers the paper thickness of the subject by adjusting the separation roller by an external input, the separation roller can be immediately set to the optimum position. Further, not only the paper thickness but also the separation performance due to the friction of the paper surface can be fine-tuned for the separation position, which is very efficient. Further, when the object is double-fed, it can be sorted by immediately detecting it by the paper thickness detection sensor and changing the paper ejection port, so that the processing after double-feeding can be performed smoothly.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a rotary type camera including a paper thickness detecting unit as a photographing device according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram of the subject thickness detection unit.

FIG. 3 is a configuration diagram of the separation roller unit.

FIG. 4 is a block diagram for operating a subject thickness detection unit.

FIG. 5 is a front view of a display unit used in a rotary camera according to a second embodiment of the present invention.

FIG. 6 is a block diagram for its operation.

FIG. 7 is a schematic configuration diagram of a rotary camera according to a third embodiment of the present invention.

FIG. 8 is a block diagram for its operation.

FIG. 9 is a schematic configuration diagram of a conventional rotary camera.

FIG. 10 is a diagram illustrating the relationship between the feeding roller and the separation roller.

FIG. 11 is a front view of a feeding roller and a separating roller.

[Explanation of symbols]

A .. Imaging unit, S .. Sheet-shaped subject, 2 ... Feed roller, 3 ... Separation roller, 21 ... Stacker, 37 ...
Separation roller rotation base, 38 ... Separation roller support base, 42 ...
・ Adjustment cams, 51, 52 ・ ・ Paper thickness detection rollers, 56 ・
・ Paper thickness detection sensor, 60 ・ ・ Pulse motor for separating roller adjustment, 80 ・ ・ Display unit, 90 ・ ・ Paper discharge port, 92 ・ ・ Separating claw

Claims (3)

[Claims] 1. An image pickup apparatus having at least a sheet feeding roller for feeding a sheet-like object and a separating roller for separating the object one by one and transporting the object into the apparatus, wherein a paper thickness is measured in the middle of a carrying path. Provide a paper thickness detection sensor,
An imaging apparatus, wherein the separation state can be automatically set to the optimum state of the subject based on the information obtained by the paper thickness detection sensor. 2. The image pickup apparatus according to claim 1, further comprising a display unit for displaying information from the paper thickness detection sensor, wherein the separation state can be automatically set by an external input. 3. The photographing apparatus according to claim 1, wherein the paper thickness detection sensor detects a double feed of a subject and changes a paper discharge port.