JPH0576620B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Object of the invention [Field of industrial application] The present invention provides a method for moving a roll microfilm in a winding direction or an unwinding direction between a film winding means and a film winding means to form a desired film. The present invention relates to a roll film device for retrieving and positioning image frames in an illumination section and performing projection observation (league), copying (printer), reading, etc. of the film image frames.

[Prior Art] FIG. 1 shows a schematic configuration of the essential parts of an automatic retrieval type roll microfilm reader or reader printer as a specific example of this type of device.

In the figure, reference numeral 2 denotes a microfilm cartridge loaded in a predetermined portion of the reader, and a roll microfilm 1 is wound around a reel (film unwinding reel) and stored in the cartridge case. FIG. 2 is a partially omitted plan view of an example of the roll microfilm 1 that is wound up and stored on a reel in the cartridge case, and K is a partially omitted plan view of the roll microfilm 1 that is sequentially taken along the length of the roll film surface. Individual information frames (film image frames),
M is a frame search mark imprinted on the edge of the film corresponding to the position of each information frame.
There are various modes (formats) for the frame search marks that are added to correspond to the positions of individual information frames.
File mark M (F), page mark M (P) 3
A so-called 3-level blip mode using marks of different sizes (or lengths) of seeds is shown. 1a is the leader tape part on the film starting end side, 1b is the trailer tape part on the rear end side of the film, MS
is the black start mark at the beginning of the film,
ME is the black end mark at the rear edge of the film.

When the film cartridge 2 is attached and the autoloading button (not shown) is pressed, the motor 5 for rotating the capstan roller, the motor 4 for rotating the film take-up reel, the solenoid 7 for lowering the capstan roller, and the projection optical system 40 are activated. The illumination lamp 14 is energized. 15 is a condenser lens.
Then, as the capstan roller 6 is rotated and pulled down by energizing the motor 5 and the solenoid 7, the leader tape section 1a on the starting end side of the storage roll microfilm on the cartridge cartridge 2 side is pressed down by the roller 6 and pulled out. The film travels along the path of the first film guide roller 9 by the rotational force of the roller 6 -> the lower side of the mark detection unit 11 -> the second film guide roller 10 -> the film take-up reel 13 which is in a rotating state due to the energization of the motor 4. The film then reaches the core 13a of the reel 13 and is automatically wound around the outer peripheral surface of the core 13a by the film winding mechanism 12. The mechanism 12 of this example has an arcuate arm 12c that can freely slide around a shaft 12a and has a small roller 12b supported by a shaft at its tip. A pinch roller assembly, which is biased by a tension spring 12d in the direction of constant pressure contact, is attached to the reel core 1.
Three sets are arranged at approximately equal intervals around the outer periphery of 3a.

A film running path is provided between the film feed roller 6 and the first film guide roller 9, between the first and second film guide rollers 9 and 10, and between the second film guide roller 10 and the film take-up reel 13. Although a guide plate for forming the structure is provided, these are omitted in the figure.

Take-up reel core 1 of the film starting end leader tape section 1a by the above-mentioned film autoloading
When the start mark part MS of the film 1 reaches the aperture part 11d of the mark detection unit 11 as the feeding and automatic winding for the film 3a progresses, its arrival is detected by the mark detection element in the unit, and the start mark part MS of the film 1 is detected based on the detection signal. The power supply to the motor 5 and the solenoid 7 is cut off, and the rotation of the capstan roller 6 is stopped. At the same time, the roller 6 escapes from the surface of the film 1 and moves upward.
is held inactive against the Further, the power supply to the motor 4 is also cut off, and the rotation of the film take-up reel 13 is stopped. That is, after the film in the cartridge 2 has been autoloaded and automatically wound onto the take-up reel 13, when the start mark part MS is located at the aperture 11d of the mark detection unit 11, the film stops running and enters the standby state. Become.

In the apparatus of this embodiment, the aperture 11d of the mark detection unit 11 serves as a film information frame illumination section (film image frame illumination section).

FIG. 3 is a perspective view of a key box 41 (or operation panel) as an information frame address designation input means (input device), where 19 is a numeric keypad for inputting numbers such as batches, files, pages, etc., and 21 and 22 are numeric keys, respectively. The batch key and file key to press when entering the batch number and file number in step 19, 2
0 is a search key for starting a search after specifying and inputting the required information frame address using the numeric keypad 19, cross key 21, and file key 22; 23, 24;
is the one-frame advance key for each film information frame ((+)
key) and a one-frame return key ((-) key), and 25 is a display that displays information such as specified input frame address numbers, errors, etc. 26 is a clear key.

When inputting the address of the desired information frame to be searched, the address can be specified as 3 batches/1
If the file is page 4, first enter "3" using the numeric keypad 19 and press the cross key 21, then enter "1" and press the file key 22, then enter "4". do. As a result, the search control circuit 27 including the microcomputer
The addresses of 3 batches, 1 file, and 4 pages are set in the comparator circuit shown in FIG. 4. Further, the set address is displayed on the display 25.

Next, when the search key 20 is pressed, film 1 is selected.
The start mark part MS is located in the aperture part 11d of the mark detection part 11, and the film winding motor 4 of the apparatus in a standby state is energized. As a result, the film take-up reel 13 is rotationally driven, and the film 1 on the cartridge 2 side runs toward the take-up reel 3 side. By running this film 1, the search marks M(B), M at the bottom of each information frame are searched.
(F) and M(P) are read one after another by a mark detection element (for example, a phototransistor) in the unit while passing through the position of the mark detector unit 11, and the read signals are sequentially input to the circuit 27. . The circuit 27 counts the input signal with a counting circuit section (counter) 30, compares the counted contents with the desired information frame address previously inputted with the input means 41, and when the two match, the comparator circuit A stop signal is issued to the film drive stop circuit 28, and the drive of the motor 4 is stopped. In other words, the information frame of the designated and inputted predetermined location is displayed at the aperture section 11d of the mark detector unit 11, which is the information frame illumination section.
When the film winding reel 1 is located at , the rotation of the film take-up reel 1 is automatically stopped, and as a result, a still image of the desired information frame is enlarged and projected onto a screen (not shown) by the projection lens 16. In the case of a reader printer, by pressing a copy button, the image of the information frame is projected onto a photoreceptor, etc., and copying is executed.

After completing the automatic search for one required information frame, enlarged projection observation on the screen, or copying, set and input the address of the next required information frame using the keys on the key box 41. The current position of the aperture portion 11d of the mark detection unit 11 is displayed. Based on the address of the information frame that has already been searched for, the information frame with the address entered next is the mark detection unit 1.
The search control circuit 27 determines whether the film is closer to the film take-up reel 13 or the cartridge 2 than position 1, and the film take-up motor 4 or the rewind motor 3 is rotationally driven to wind the film 1. It travels to the take-up reel 13 side or the cartridge 2 side, and an automatic search is executed in the same manner as in the case of the previous information frame, and the next desired frame is located at the aperture portion 11d of the mark detection unit 11, which is the illumination portion.

In some cases, the search for the required information frame is performed manually. In the manual type, operate the manual film advance dial to wind or rewind the film 1 at an appropriate rate, and use a rough counter that roughly compares and counts the length of the film as a guide. Alternatively, by visually following the projected images of individual information frames that are sequentially projected onto the reader screen as the film travels, the desired information frame is found and located in the illumination section. .

[Problem that the invention seeks to solve]

In such a microfilm apparatus, the light source lamp 14 for illuminating the information frames is lit when the main power switch of the apparatus is turned on or when the autoloading button is pressed, and thereafter remains lit.

Therefore, if the operator leaves his/her seat while using the device while the lamp 14 is on, leaving the device as it is, and the time spent away from the device (device leaving time) is quite long, at that time, if the operator leaves the device alone and leaves his or her seat for a considerable period of time, the lamp 14 is illuminated, and if the operator leaves his or her seat for some reason (device leaving time), the lamp 14 is on and the lighting section 11d of the device is illuminated. During this time, the information frame portion that is being displayed continues to receive strong light from the lamp (such as a halogen lamp) 14.

Normally, a cold mirror is used in a light source device to remove infrared light that turns into heat and prevent any adverse thermal effects on the film as much as possible, but it does not filter out the ultraviolet light contained in the illumination light. The information frame portion located in the illumination section 11d is continuously exposed to ultraviolet light and is adversely affected.

For example, if the film 1 is a diazo film that is often used as a duplex film, the recorded image and retrieval prep mark M will noticeably fade due to continued exposure to strong ultraviolet light for a long time, and the quality of the recorded image will deteriorate. In addition, the decrease in the density of the prep mark M may cause retrieval failure or erroneous retrieval.

Therefore, some devices are designed to automatically turn off the lamp 14 when the device is left unused and a certain grounding time has elapsed.
However, there are also problems in this case. That is, the lamp 14
When the light is off, the device appears to have been used, and the film cartridge 2 still attached to the device is likely to be recognized as simply having been forgotten to be removed. Therefore, the cartridge 2 is often carelessly removed from the apparatus by another operator in order to use the apparatus or to put away the film cartridge 2 that has been recognized as having been forgotten. However, in reality, the film 1 is not completely rewound into the cartridge 2, but is still wound around both the film rewind reel inside the cartridge 2 and the film take-up reel 13 on the device side. 2 from the device, the film inside the cartridge 2 may be pulled out for a considerable length, or the film portion between the cartridge 2 and the film take-up reel 13 may be strongly pulled or twisted unnaturally. This is a serious problem because it can cause damage to the film, the recorded image on the film surface, and the search marks due to rubbing with other objects.

Similarly, the present invention is designed to automatically turn off the lamp 14 when the device is left unattended during use and the unused time has elapsed for a certain set time, but it is devised to avoid the above-mentioned problem.

B. Structure of the Invention [Means for Solving the Problems] The present invention provides a method for moving a roll microfilm in a winding direction or an unwinding direction between a film winding means and a film rewinding means to obtain a desired film image frame. In a device that is placed in a retrieval position in the illumination section and performs projection observation, copy reading, etc. of the film image frame, the time elapses every time any of the various operation keys of the device or a specific operation key is operated. a timer means that outputs a signal when the time progress is reset to zero and starts time progress again and a set time elapses without being reset midway; and a set time elapsed signal that is outputted from the timer means. The present invention is directed to a roll microfilm device comprising: a control means for controlling a light source lamp for illuminating a film image frame to be extinguished based on the above, and for controlling the film to be rewound toward a rewinding means side.

[Action/Effect]

That is, with the above configuration, when the device is left unused while in use and the unused time reaches the time preset in the timer means, the lamp 14 is automatically turned off and the film 1 is turned off. By the automatic operation of the film rewinding means, the entire film is rewound and housed in the cassette 2 and stands by.

Therefore, by automatically turning off the lamp 14, the film is protected from long-term irradiation with illumination light, and since the film is completely rewound in the cassette 2, other operators cannot Even if the cassette is simply removed from the apparatus, the above-mentioned problem of damaging the film, recorded images on the film surface, search marks, etc. does not occur.

〔Example〕

FIG. 5 is a control circuit diagram in an example in which the present invention is applied to the roll microfilm reader or reader printer shown in FIGS. 1 to 4, and FIG. 6 is an operation flow diagram.

In FIG. 5, R1 and R2 are first and second OR gates, F1 and F2 are first and second flip-flops, and A1, A2, and A3 are first, second, and third flip-flops.
, I is an inverter, and 34 is a transistor. T is reset when a "1" signal is input, outputs a "1" signal after a certain period of time (a predetermined set time), and outputs a "1" signal again before the set time elapses after being reset. This is a timer that returns to zero and starts time progression again every time . The electrical members described above are connected to each other as shown in the fifth figure.

(1) Enter and set the address of the target information frame to be searched into the search control circuit by operating the numeric keypad 19, cross key 21, file key 22, etc. of the key box 41 (FIG. 6, step A).

(2) Press search key 20 (step B).

(3) The signal is transmitted to the first and second OR gates R1,
The timer T is reset by inputting the signal to R2 (step C). In this example, the reset of the timer T is also performed when the (+) key 23, (-) key 24, or clear key 26 is pressed.
and is input to the second OR gates R1 and R2.

(4) Film 1 is also driven by motor 4 or motor 3.
travels to the take-up reel 3 side or to the cartridge 2 side, which is the rewind side, and an automatic search for the desired information frame is executed (step E).

(5) When the target information frame is positioned corresponding to the illumination section 11d, the film is stopped running (step F).

(6) The frame position is displayed on the display 25 (step G).

This completes the automatic search for the illumination position 11d of the objective information frame, and a still enlarged image of the objective information frame is projected onto the screen surface. When the copy button is pressed, the copy mechanism is activated and an enlarged heart copy of the objective information frame is output. When the enlarged projection observation, copying, etc. of that objective information frame is completed, enter the address of the next objective information frame again and press the search key 20 to perform an automatic search for the next objective information frame in the same manner as above. Ru. Further, the timer T is reset again when the search key 20 is pressed. (+) key 23, (-) key 24
The timer T is also reset when the target information frame is positioned at the illumination position 11d. It is also reset when the clear key 26 is pressed.

When using the information frame illumination light source lamp 14, the search key 20, (+) key 23, (-) key 24, and clear key 26 are repeatedly operated, and the operation interval time is shorter than the set time of the timer T. As long as the reset of the timer T is repeated, the set time elapsed signal is not outputted from the timer T, and the lighting state is maintained continuously.

That is, in the process of using the device, search key 20, (+)
When any one of the key 23, (-) key 24, and clear key 26 is operated, "1" is input from the first OR gate R1 to the set S of the first flip-flop F1, and from the output Q to the set S of the first flip-flop F1. By inputting "1" to one input terminal of the third AND gate A3 and inputting "1" from the second OR gate R2 to the other input terminal, the third AND gate A inputs "1" to the timer T. 1” is input and timer T
is reset. On the other hand, from the output Q of the first flip-flop F1 to the second AND gate A2
``1'' is input to one input terminal of . The output "0" of the first flip-flop F1 is inverted by the inverter I and "1" is input to one input terminal of the first AND gate A1, and "1" is input from the second OR gate R2 to the other input terminal. 1" is input, the output of the first AND gate A1 becomes "1", which is input to the reset R of the second flip-flop F2. Also, the second flip-flop F2
Since the input of the set S of the flip-flop F2 is "0", the output of the flip-flop F2 becomes "1", and the output "1" is inputted to the other input terminal of the second AND gate A2. As a result, the output of the second AND gate A2 becomes "1", the transistor 34 is activated, and the lamp 14 is turned on. Or the lighting is maintained. Timer T is set to key 20, 2 during the use of the device.
As long as any one of 3, 24, and 26 is operated and the operation interval time is shorter than the set time of timer T, the reset will not be repeated and output "1", that is, the measurement time elapsed signal. Therefore, the lamp 14 is not turned on or the film rewind motor 3 is driven based on the signal.

After the timer T is reset during the use of the device, if the reset signal is not input to the timer T due to the device being left unused, etc., and the set time of the timer T elapses (Fig. 6, Step D), the timer T is reset. The output becomes "1", and this "1" is input to the set S of the second flip-flop F2. Since "0" is input to the reset R of the flip-flop F2, the output becomes "0", and the output of the second AND gate A2 becomes "0", and as a result, the lamp 14 is automatically turned off ( Step H). Further, the output of Q becomes "1", and this signal is input to the search control circuit 27, and based on this signal, the motor 3 is driven and the film 1 is rewound to the cartridge 2 side (step I).
When the film 1 is completely rewound to the cartridge 2 side, the film drive stop circuit 28 is activated to stop the drive of the motor 3 and the apparatus enters a standby state.

[Brief explanation of drawings]

FIG. 1 is a schematic perspective view of the main parts of an example of a roll microfilm reader or a reader printer thereof;
Figure 2 is a partially omitted plan view of an example of a roll microfilm, Figure 3 is an oblique view of a key box, and Figure 4 is a perspective view of a key box.
The figure is a block diagram of the control system, FIG. 5 is an example of a circuit for automatically turning off the lamp and automatically rewinding the film, and FIG. 6 is an operation flow diagram. 1 is a microfilm, 14 is a lamp, and 20 is a search key.

Claims (1)

[Claims] 1. A roll microfilm is moved between a film winding means and a rewinding means in the winding direction or the unwinding direction, and a desired film image frame is searched and positioned in the illumination section, and the film image frame is In a device that performs projection observation, copy reading, etc., each time one of the various operation keys of the device or a specific operation key is operated, the time progression is reset to zero and the time progression is restarted. a timer means for outputting a signal when a set time has elapsed without being reset midway; and a light source lamp for illuminating a film image frame is turned off based on the set time elapsed signal outputted from the timer means, and the film image frame illumination light source lamp is turned off. A roll microfilm device comprising: control means for controlling the film to be rewound to the rewinding means side;