JP2552183B2 - Search device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is used for carrying a long object such as a microfilm having a large number of image frames and marks provided corresponding to the image frames. It relates to the device.

(Prior Art) Conventionally, this type of search device is used, for example, in a microfilm search device, and detects a large number of continuous marks provided on a long object by a detection means, and the detected marks are detected by a counting means. Counting is performed, the count value is compared with desired address data, and when both match, the drive means is stopped based on the detection signal, and the desired portion of the long object is stopped at a predetermined position. ing.

(Problems to be Solved by the Invention) However, in the above-mentioned conventional example, when the stop position of the desired portion of the long object deviates from the predetermined position, first, the detection means is set to the long object to correct the stop position. After moving in the conveyance direction, the driving means conveys and stops the long object, confirms whether the stop position of the long object is the position you want to change, and again moves the detection means and conveys the long object. Since a series of operations of stopping and confirming the position thereof must be repeated a plurality of times, the adjustment work is troublesome and takes a lot of time.

The present invention is intended to solve the above problems, and when changing the stop position of a long object, the movement of the detection means and the conveyance of the long object can be performed in an interlocked manner, and the adjustment time can be shortened. It is intended to provide a search device that is easy to work with.

(Means for Solving the Problems) In order to achieve the above object, the present invention conveys a long film having a mark on a side of an image in a longitudinal direction and passes a mark detection position of a mark detection means. In a retrieval device for retrieving a desired image by detecting a mark on a film, based on a detection signal of the mark detection means and a movement means for moving the mark detection means in the film transport direction to change the mark detection position. Drive means for controlling the transport and stop of the film, and after retrieving a desired image, the mark detecting means is moved in the film transfer direction to change the stop position of the desired image, and the mark detecting position is changed. When changing, the driving means is operated so as to convey the film until the mark on the side of the desired image is detected at the changed mark detection position. Is.

(Operation) According to the operation of the present invention based on the above-described configuration, the driving unit conveys the film in the film transfer direction until the mark on the side of the image is detected at the changed mark detection position of the mark detection unit. Change the stop position of the image.

(Embodiment) Next, the present invention will be described based on an embodiment shown in the accompanying drawings.

FIG. 2 shows a schematic structure of a microfilm reader printer equipped with a microfilm retrieval device to which the present invention is applied. In the figure, reference numeral 1 is a microfilm (long product), and a mark 1b is provided on the side edge of an image frame 1a on the microfilm 1. Reference numeral 2 denotes a detachable film supply cartridge for accommodating the microfilm 1 in a roll, 6 denotes a capstan roller for feeding the microfilm 1 in the cartridge 2, 5 denotes a delivery motor for rotating the capstan roller 6, and 3 denotes A film take-up motor (driving means) 7 for rotating a film spool (not shown) in the cartridge 1 is provided with a support arm 8 at a position where the capstan roller 6 contacts the microfilm 1 and a position apart from the microfilm 1. It is a solenoid that moves through.

9, 10 is a film guide roller, 13 is a film take-up reel, 12 is a pressure applied by a spring 12a toward a take-up shaft 13a of the take-up reel 13, and the leading end of the film 1 is taken up by the take-up reel 13. It is a guide roller for surely winding the shaft 13a.

Reference numeral 4 denotes a film winding motor (driving means) for rotating the winding reel 13. Although not shown, a guide plate for guiding the film 1 is provided along a predetermined film feeding path between the cartridge 2 and the take-up reel 13.

In the above structure, when the delivery motor 5 is driven and the solenoid 7 is operated, the capstan roller 6 moves to a position where it contacts the microfilm 1 while rotating, and the capstan roller 6 and the microfilm 1 contact each other to cause the cartridge 2 to move. The front end of the microfilm 1 is fed from the microfilm 1, and the microfilm 1 is fed toward the take-up reel 13 along a predetermined path. When the leading edge of the microfilm 1 passes the guide roller 9, a film detector (not shown) detects the microfilm 1, and the winding motor 4 is driven by the detection signal, and the winding reel 13 rotates.

When the leading end of the microfilm 1 is fed to the take-up reel 13, the guide roller 12 causes the leading end of the microfilm 1 to be automatically wound around the take-up shaft 13a of the take-up reel 13. When the microfilm 1 is wound around the take-up reel 13, the rewinding motor 3 and the solenoid 7 are deactivated and the capstan roller 6 is separated from the microfilm 1 and returns to its original position. The leading edge of the microfilm 1 is the take-up reel 13
When the micro film 1 is wound around, the micro film 1 is transferred from the cartridge 12 to the take-up reel 13 by the rotation of the take-up reel 13.
When rewinding the microfilm 1 into the cartridge 2,
When the winding motor 4 is deactivated and the rewinding motor 3 is driven, the film spool (not shown) in the cartridge 2 rotates in the winding direction of the microfilm 1 to rewind the microfilm 1 into the cartridge 2. Therefore, the motor
The microfilm 1 can be moved forward and backward by driving any one of 3 and 4.

14 is a lamp for illuminating the microfilm 1, 15 is a condenser lens, 16 is an image of the microfilm 1 illuminated by the lamp 14 and projects the image on the screen 18 via the reflection mirror 17, or the reflection mirrors 19 and 20. It is for a projection lens for enlarging and projecting onto the photosensitive drum 21 via the.

Reference numeral 11 is a detection means for detecting the mark 1b of the microfilm 1, and a photoelectric conversion element (not shown) is built in the detection means 11, and the illumination light from the lamp 14 is detected while the microfilm 1 is being conveyed. Mark that passes the mark detection position of
A detection signal is output by being interrupted by 1b.
Details of the detecting means 11 are shown in FIG. 3 (plan view). Reference numeral 22 is a fiber block for fixing the optical fibers 23a and 23b connected to the photoelectric conversion element, and a rack (not shown) is provided on the lower surface side of the fiber block 22. Reference numeral 25 denotes a side plate fixed to a proper position of the main body of the detection means 11, 24 denotes a shaft rotatably supported by the side plate 25, and a worm 24a meshing with a rack of the fiber block 22 is provided on an outer peripheral surface of the shaft 24. ing. Therefore, by rotating the knob 24b on one end side of the shaft 24, the fiber block 22 is moved in the Z, Y direction along the transport direction of the microfilm 1.
It can be moved in either direction. One end surface of each of the optical fibers 23a and 23b is provided opposite to each photoelectric conversion element, and the other end surface is provided opposite to the mark passing position of the film transport path, and the mark passing position facing the other end surface is the mark detecting position. Therefore, when the fiber block 22 is moved in the film transport direction (Z, Y direction), the mark detection position is changed by moving the other end surfaces of the optical fibers 23a, 23b in the same direction.

The microfilm 1 and the optical fibers 23a and 23b that receive the light from the lamp 14 are blocked by a plate glass (not shown) provided on the lower surface of the detecting means 11,
Dust, dust, etc. do not enter inside 11.

FIG. 1 is a block diagram showing the main circuit configuration of the present invention.

Of the optical fibers 23a and 23b in the detection means 11, one optical fiber 23a outputs a mark signal and the other optical fiber 23b outputs a stop signal. The conveyance control means 26 connected to the detection means 11 receives a mark signal from the optical fibers 23a, 23b, a comparison unit 26a that receives the stop signal and calculates the moving direction and the movement position of the detection means 11, and the calculated value of the comparison unit 26a. And a control section 26b for outputting an operation signal to the driving means 27 (the winding motor 3, the rewinding motor 4) so as to convey and stop the microfilm 1 following the detection means 11 based on There is.

Next, the operation of moving the detection means 11 and following the movement to convey the microfilm 1 in the embodiment having the above-described structure will be described. Such position adjustment of the detection means 11 and the microfilm 1 is performed when the image area on the microfilm 1 is desired to be moved to a desired position on the screen 18 for projection or when the image is magnified at the time of hard copy and the photosensitive drum 21 is enlarged. This is performed when it is desired to project the image on top.

FIG. 4 (a) shows a state in which the microfilm 1 and the detection means 11 are both stationary, and the optical fibers 23a, 23
Of the b, one optical fiber 23b is the microfilm 1
Mark 1b of is detected. That is, the mark 1b is stopped in a state of being placed at the mark detection position of the optical fiber 23b. At this time, the mark signal of the optical fiber 23a is in the state of (H) in FIG. 5 (a), the stop signal of the optical fiber 23b is in the state of (L), and the operation signal of the rewinding motor 3 is in the state of (L). (This (a) shows the detection means 11 with arrow Z
The winding motor 4 does not operate because it is a timing chart for moving the winding motor 4 in the direction).

The shadow of the fiber block 22 is projected on the screen 18 shown in FIG.

Next, in order to change the stop position of the microfilm 1, the knob 24b of the shaft 24 is rotated to move the fiber block 22 in the arrow Z direction as shown in FIG. 4 (b), and the optical fiber 23b is moved from the mark 1b. When the output signal becomes off (the mark detection position is changed), the stop signal becomes (H) and the mark signal remains (H), the comparison unit 26a calculates the moving direction Z, The control unit 26b outputs an operation signal (H) to the winding motor 3 based on the calculated value, so that the microfilm 1 also moves to Z.
Is conveyed in the direction. Then, as shown in FIG. 4 (c), the mark 1b reaches the changed mark detection position of the optical fiber 23b, and at the same time, the stop signal becomes (L). An operation signal (L) is output to 3 and the conveyance of the microfilm 1 is stopped (FIG. 4 (c)). That is, when the mark 1b is placed at the changed mark detection position of the optical fiber 23b, the film is stopped by detecting this mark, which means that the stop position of the film is changed.

Next, the detecting means 11 is moved to the fourth position from the stationary state in FIG.
When the optical fiber 23b is disengaged from the mark 1a when moving in the direction of the arrow Y as shown in FIG. 7D, the comparing unit 26a which has received the stop signal (H) and the mark signal (L) calculates the moving direction Y of the detecting means 11. To do. Then, the control unit 26b outputs a signal (H) for conveying the microfilm 1 in the Y direction to the winding motor 4. As a result, the microfilm 1 is conveyed in the Y direction, and when the state shown in FIG. 4 (e) is reached, the optical fiber 23a detects the mark 1b again, whereby the movement control means 26 stops the operation of the winding motor 4. The signal (L) is output and the transport of the microfilm 1 is stopped.

(Other Embodiments) FIGS. 6A to 6D show another embodiment.

(A) uses a reflection type sensor having a light emitting element and a light receiving element as the detecting means 11, and detects the mark 1b on the elongated object 1. Detection means in the case of this embodiment
Instead of manually moving 11 as in the above embodiment, the detecting means 11 is drivingly coupled to a moving means such as a pulse motor (not shown) as shown in FIG. An operation unit 28 including a key switch for instructing a position is provided, and a transfer instruction signal from the operation unit 28 is transmitted to the transport control unit 26.
The detection means 11 is automatically moved by the moving means via the comparing part 26a therein. Therefore,
The comparison unit 26a processes this movement signal as it is, sends a signal to the control unit 26a in the same manner as described above, and operates the driving means 27 to carry or stop the long object.

In (c), the mark 1b on the long object 1 is a pinhole,
An example using a transmissive sensor as the detection means 11 is shown. The main circuit configuration of this embodiment is the same as that of the above (b).

(D) is a roller that rolls along the side edge of the long object 1 as a notch in which the mark 1b of the long object 1 is provided along one side edge.
To the roller 29, a lever 31 that reciprocates in the direction orthogonal to the conveyance direction of the long object by the spring 30, the groove 30a, and the pin 30b is connected, and the roller 29
Is converted into a linear movement of the lever 31, and the protrusion 31 'of the lever 31 is moved in and out of the detection portion of the detection means 11 composed of a transmission type sensor to detect the mark 1b. The main circuit configuration in this embodiment is the same as that in (b).

(Effects of the Invention) Since the present invention is configured as described above, when the detected image is displaced from the predetermined position from the stop position of the desired image, the detection means is moved, and when the detection means moves, the mark is moved. Since the film is automatically conveyed in the moving direction of the detection means until the detection of the, the adjustment time can be shortened and the work can be simplified. Therefore, if this retrieval device is applied to a microfilm reader printer, for example, when moving and projecting the image area on the microfilm to the desired position on the screen, which was conventionally done by trial and error, or during hard copy, Work for enlarging and projecting an image on the photosensitive drum can be performed accurately and quickly.

[Brief description of drawings]

1 to 6 show an embodiment of the present invention, FIG. 1 is a block diagram showing the main circuit configuration when applied to a microfilm reader printer, and FIG. 2 shows the overall schematic configuration of FIG. FIG. 3 is a perspective view, FIG. 3 is a plan view showing the detection means of FIG. 2, FIGS. 4 (a) to (e) are plan views showing movement of the detection means and follow-up conveyance of a long object, and FIG. 5 (a). ) And (b) are timing charts showing the relationship between the detecting means and the conveyance control of the long object, FIGS. 6 (a) to 6 (d) show another embodiment, and FIGS. Is a perspective view showing an essential part, FIG. 2B is a block diagram showing a main circuit configuration, and FIG. 1D is a plan view showing an essential part. Explanation of reference numerals 1 ... long object, 1b ... mark 11 ... detecting means, 26 ... transport control means 27 ... driving means (3 ... winding motor, 4 ... rewinding motor)

Claims (1)

(57) [Claims] 1. A desired image is searched by conveying a long film having a mark on the side of the image in the longitudinal direction and detecting a mark on the film passing through a mark detecting position of a mark detecting means. In the retrieval device, there is provided a moving means for moving the mark detecting means in the film transport direction in order to change the mark detecting position, and a driving means for controlling film transport and stop based on a detection signal of the mark detecting means. Then, after searching for the desired image, when the mark detection means is moved in the film transport direction to change the stop position of the desired image to change the mark detection position, the marks on the side of the desired image are A retrieval device, characterized in that the driving means is operated so as to convey the film until it is detected at the changed mark detection position.