JPH01166026A - Portable microfilm viewer - Google Patents

Abstract

PURPOSE:To make the title viewer excellent in portability and to conveniently utilize it without consideration of an occasion and a place by making a boxlike viewer main body smaller, to the extent that it is by one size larger than a cassette, when it is not used and incorporating an operation panel, a magnetic head and a blip sensor, etc. CONSTITUTION:A shuttle part A is constituted of the set plate 2, the main frame 3 and the slide frame 4 of the oblong box-like viewer main body 1. As for the slide frame 4, a sliding wall 4b is housed in the upper wall 3a of the main frame 3 in a position for pushing-in operation when it is not used. Therefore the viewer main body 1 becomes compact to the extent that it is one size larger than the cassette 9. And the operation panel 51, a RAM, the blip sensor and a battery are incorporated in the main body 1. Then, the retrieval function thereof can be utilized by reading magnetic information on a tape and blip marks on a microfilm stored in the RAM and also the viewer can be used in a place where there is no AC power source. Thus, the viewer becomes excellent in portability and it can be conveniently utilized without consideration of the occasion and the place.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a portable microfilm pure.

(Prior art and its problems) Conventionally, a cassette containing projection microfilm was loaded, and the magnetic information on the microfilm magnetic tape was read by the magnetic head built into the device by operating the operation panel. While detecting blip marks on the film with a blip sensor, the microfilm is wound and unwound using a motor, and the image of the film that has been illuminated by the illuminator is enlarged and projected onto a screen via a projection lens or reflective mirror. Projection device (microreader)
is proposed.

By the way, the conventional projection device mentioned above has a large screen (
For example, A4 size, etc.), even a compact folding type is 2 to 3 times the size of a cassette, so portability may not always be considered good. .

Therefore, the applicant proposed the portable microfilm Pure, which can be downsized to one size larger than a cassette when not in use, has excellent portability, and can be used very easily at any time and place. did.

Microfilm Pure is opened by swinging the main frame upward against the set plate, loading a cassette into the cassette loading section of the set plate, pulling out the slide frame, closing the main frame by swinging upward, and then opening the operation panel. With the operation, the magnetic head built into the Pure body reads the magnetic information on the magnetic tape, and the blip sensor detects the blip marks on the microfilm.
Winding and rewinding of microfilm is controlled by a motor,
The image of the microfilm that has been transmitted and illuminated by the illumination body can be viewed as an enlarged image through a magnifying glass.

Therefore, the rectangular box-shaped main unit can be made smaller, thinner, and lighter to the extent that it is one size larger than the cassette when not in use, making it extremely portable. Since it has a built-in blip sensor, it can read the magnetic information on the magnetic tape and the blip marks on the microfilm, and use the search function like a conventional large projection device.It also has a built-in battery. Because of this, it can be used even in places without AC power.
You can obtain the effect of being able to use it very easily, regardless of time and place.

(Object of the Invention) The present invention relates to an improvement of the portable microfilm Pure proposed by the present applicant, and its basic purpose is to further enhance its versatility.

(Structure of the Invention) Therefore, the present invention provides a drive mechanism for a projection microfilm housed in a cassette, a blip sensor for detecting blip marks on the film, an illumination body for transmitting illumination of the film, and a drive mechanism for a projection microfilm housed in a cassette. A magnifying glass for enlarging a film image transmitted through the body, a first input/output terminal, an operation panel, a RAM for storing search information for the film, operation signals from the operation panel, information stored in the RAM, and a blip sensor. a shuttle section provided with a control means for controlling the driving mechanism and the lighting body based on a detection signal of the above; an input terminal; a second input/output terminal; a loading section for removably loading the RAM pack; a writing means for writing search information from a reading device that has previously read search information on the magnetic tape of the film into the loaded RAM pack via the input terminal; The first terminal is read out and detachably connected to the second terminal.
A RAM drive unit is provided with a transfer means for storing data in the RAM of the Yattle unit via an input/output terminal.

(Operations and Effects of the Invention) According to the present invention, the search information on the magnetic tape of the corresponding cassette is read in advance by a reading device, and this search information is transmitted to the RA.
By writing (storing) data to the M pack, you can store RAM in the RAM drive section in case the reading device (existing cassette file device, etc.) breaks down or is unavailable because it is being used by someone else.
By loading the M pack and transferring the search information in the RAM pack to the RAM in the shuttle section and storing it, it is possible to search for the cassette and check the image contents without using an existing cassette file device. Become. In other words, it is possible to back up an existing cassette file device, etc.

Additionally, there is no need for a magnetic head in the shuttle unit to read the search information on the magnetic tape, which simplifies the structure of the shuttle unit, while also eliminating the need for stable film advance control to read the search information on the magnetic tape. At the same time, the time required to read the search information on the magnetic tape is replaced by the time required to transfer the search information from the RAM drive section to the shuttle section, making it possible to significantly reduce the time.

Furthermore, by using the input terminal of the RAM drive section to organize the search information from the reading device on a personal computer and transfer it from the computer to the RAM drive section, free searches become possible.

If multiple pieces of search information are stored in the RAM pack, a bar code or magnetic tape is pasted on the outside of the cassette in order to automatically select the search information for the corresponding cassette and transfer it to the RAM in the shuttle section. It is also possible to read this. (Embodiments) Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the portable Microfilm Pure consists of a shuttle section A into which a cassette 9 containing a roll-shaped projection microfilm 8 that can be wound and rewound is loaded; RAM that is removably set
It basically consists of a drive section B.

As shown in FIGS. 3 to 5, the glossy portion A consists of a bottom wall 2a, side walls 2b, 2
Set plate 2 forming b, upper wall 3a and rear wall 3b
It basically consists of a main frame 3 that forms a front wall 4a, and a slide frame 4 that forms a front wall 4a.

The bottom wall 2a of the set plate 2 is formed into a horizontally long rectangular plate shape, and from both longitudinal ends of the bottom wall 2a to both side walls 2b.
, 2b are formed to stand upward in parallel.

The upper wall 3a of the main frame 3 is formed in a horizontally elongated sheath-shaped hollow case, and the rear wall 3b is formed in a rectangular block-shaped hollow case. Both side walls 2b and the rear side of 2b are pivotally connected by a hinge pin 5.5, and the set plate 2 and the main frame 3 are hinged so as to be able to swing vertically relative to each other (see FIG. 5).

The front wall 4a of the slide frame 4 is formed in the shape of a horizontally long thick plate, and a sliding wall 4b in the shape of a horizontally long hollow case extending rearward is formed on the upper part of the front wall 4a.
is fitted into the upper wall 3a of the main frame 3 so as to be slidable back and forth.

When the slide frame 4 is in the push-in operation position when not in use (see Fig. 3), the sliding wall 4b is housed within the clay wall 3a of the main frame 3, and the main body 1 moves around the cassette 9 once. It becomes more compact to the extent that it is enlarged, and in the drawer operating position (see Fig. 4) during use, the sliding wall 4b is pulled out from within the upper wall 3a of the main frame 3, so that it can be used as a pure as described later. Can be done.

The bottom wall 2a and both side walls 2b of the set plate 2.

2b, as shown in FIGS. 6 and 7, there is a cassette loading section 1 into which a cassette 9 containing a roll-shaped projection microfilm 8 that can be wound up and rewound is loaded.
0 is set;

The film image a of the microfilm 8 in the cassette 9 is normally placed on the sixth film so that it can be enlarged and projected onto a screen in an upright position using the conventional projection device (microreader).
As shown in the figure, the cassette 9 is photographed in an inverted position when viewed from the front, but since the shuttle section A according to the present invention is only enlarged with a magnifying glass, which will be described later, the cassette loading section IO of the set plate 2 is , the cassette 9 is loaded so that the film image a is in the upright position when viewed from the front (see FIGS. 5 and 7). That is, contrary to the case where the cassette 9 is loaded into a conventional projection apparatus, the cassette 9 is loaded upside down.

A cover 9a that can be opened and closed is provided on the running surface of the microfilm 8 of the cassette 9, and winding/unwinding spools 9b, 9 are provided on the top surface when the cassette 9 is loaded upside down.
b is coming.

Inside the rear wall 3b of the main frame 9, as shown in FIG. 8 and FIG.
(see Figure 2) etc. are built in, and the upper wall 3 of the main frame 3
Inside a, there is a winding/unwinding spool 9b for the cassette 9,
The winding/unwinding shaft 14 is fitted into the winding shaft 9b from above.
．． a, 14a are built-in.

The winding/unwinding shafts 14a, +4a and the speed reduction mechanism 13
are connected via timing belts +5a and +58, respectively.

Specifically, this film drive mechanism drives two winding/rewinding shafts 14a, 14a, which fit into the winding/rewinding spools 9b, 9b of the cassette 9, respectively, to feed and rewind the microfilm. It is for carrying out.

That is, as shown in FIGS. 8 and 9, a drive motor 12 is installed horizontally in the rear wall 3b of the main frame 3, and a small-diameter gear 17 is attached to its output shaft.
This gear 17 is connected to the driving motor I2 by a bearing member I8.
It meshes with a relatively large-diameter gear 20 attached to one end of a rotation transmission shaft 19 that is supported parallel to the axial direction of the shaft. A helical gear 21 is fixedly attached to the other end of the rotation transmission shaft 19, and this helical gear 21 is attached to the lower end of a vertical rotation transmission shaft 23 which is rotatably supported on a support substrate 22 around a vertical axis. The rotation direction is 90 degrees due to the meshing of both gears 2+ and 24.
The rotation is transmitted to the rotation transmission shaft 23 in the vertical direction.

As shown in FIGS. 11 and 12, a seesaw plate 26 is provided on the upper surface side of the support substrate 22 and swings around a vertical rotation transmission shaft 23 that is supported by a bearing 25 on the support substrate 22. On this seesaw plate 26, switching gears 28 and 29, which are always in mesh with the central gear 27 attached to the upper end of the rotation transmission shaft 23, are rotatably attached to the shafts 30 and 29.
1.

Large diameter gears 32 and 33 that mesh with the switching gear 28 or 29 on the tilted side when the seesaw plate 26 tilts to one side are respectively pivotally supported on the support substrate 23. Each gear 3
The rotating shafts 34, 35 of 2, 33 are rotatably supported by bearings 36, 37, respectively, and a belt pulley 38, 39 is attached to the lower side of each gear 32, 33.

These belt pulleys 38, 39 are connected to each winding/unwinding shaft 14, as shown in FIG.
, a, and 14b, and the timing belt 1 is wound between the large-diameter belt pulleys 4-0, 4, respectively, which are attached to the upper ends of the timing belt 1.
5a, 15b, the winding/unwinding shafts 14a, 14b can be driven via respective belt pulleys 38, 39.

As shown in FIGS. 10 and 12, the rotating shafts 34, 35 of the large-diameter gears 32, 33, which can mesh with the switching gears 28, 29, are extended upward, and the rotating shafts 34, 35 are connected to the rotating barrel 42.
．． 43 are fixedly mounted, and these two rotating cylinders 42.4
3, a rotary cylinder 42 is provided between a support frame 44 having clamping parts 44a and 44b and each clamping part 44a and 44b.
．． Friction spring 45 that clamps 43 with spring force
It is preferable to provide a so-called friction brake 46.

The friction brake 46 can apply a predetermined pack tension to the winding/rewinding shaft on the side that is not driven when the film is fed or returned, so that the occurrence of loosening of the film can be effectively prevented.

In the film drive mechanism described above, when the drive motor 12 placed horizontally is rotated forward or reverse, the central gear 27 of the seesaw plate 26 is rotated forward or reverse.

The forward or reverse rotation of the central gear 27 is controlled by the seesaw plate 2.
6 is swung obliquely according to its rotational direction, and the switching gear 28 (29) located in the inclined direction meshes with the corresponding large-diameter gear 32 (33). The meshing state shown in Fig. 12 is as follows:
The winding/unwinding shaft 14a on the right side of the figure is driven by a timing belt 15a, and the microfilm 8 is driven in the feeding direction.

Furthermore, when the drive motor 12 is reversed from the state shown in FIG. 12, the seesaw plate 26 swings in the opposite direction, and as a result, the winding/unwinding shaft 14-b on the left side of the diagram is driven. Then, the microfilm 8 is rewound.

In addition, in FIG. 12, 47 is a stopper plate that stops the rocking of the seesaw plate 26.

In the film drive mechanism described above, the installation space for the film drive mechanism can be made compact and thin by arranging the drive motor I2 horizontally and using a seesaw type gear cludge mechanism.

Returning to FIGS. 3 and 4, an operation panel 5I is provided on two sides of the upper wall 3a of the main frame 3, and the operation panel 51 is provided with a data input function for inputting search data. A key 51a, function keys 51b such as forward, backward, and search mode selection keys, and a display section 51c for displaying the address of each frame of the microfilm 8 and search data are provided.

Furthermore, inside the sliding wall 4b of the slide frame 4, as shown in FIG. (Light emitting element)
55 and a diffuser plate 56 are provided.

A magnifying glass 57 facing the image area of the microfilm 8 is provided through the front wall 4a of the slide frame 4 in the front-rear direction, and the magnifying glass 57 can be moved in the optical axis direction to adjust the focus. .

Further, within the rear wall 3b of the main frame 3, there is a RAM 70 (see FIG. 8) that stores search information of the microfilm 8, and a RAM 70 that stores operation signals from the operation panel 51 and a RAM.
A control circuit (microcomputer) 71 (see FIG. 8) is provided on the bottom wall 2a of the set plate 2 to control the drive motor 12, the LED 55, etc. based on the stored information of 70 and the detection signal of the blip sensor 54. is provided with a first input/output terminal (connector) 72 (see FIG. 1).

On the other hand, as shown in FIGS. 1 and 2, the RAM drive section B includes a box-shaped drive main body 75, and a setting section 76 for setting the shuttle section A is formed on the upper surface of the drive main body 75. has been done.

A second input/output terminal (connector) 77 is provided on the upper surface of the drive body 75 and is detachably connected to the first input/output terminal 72 of the shuttle section A when the shuttle section A is set. An input terminal (connector) 79 is provided on the side surface of the main body 75 and is detachably connected to a personal computer 78 .

Further, a RAM pack 8 is provided on the front of the drive main body 75.
A loading port 81 for removably loading a 0 is provided.

The drive body 75 is loaded with search information from a reading device (such as an existing cassette file device) 82 that has previously read the search information on the magnetic tape of the microfilm 8 via the input terminal 79. RAM
The write circuit 83 writes to the pack 80, and the search information written in the RAM pack 80 is read out and sent to the gloss section via the first input/output terminal 72 which is detachably connected to the second input/output terminal 77. A transfer circuit 84 for storing data in the RAM 70 of A is provided.

The RAM 70 of the shuttle section A is a nonvolatile memory that can store search information for one set, and the RAM pack 80 is a nonvolatile memory that can store search information for 10 cassettes. .

With the above configuration, as shown in FIG. 2, (1) the search information recorded on the magnetic tape of the microfilm 8 of the cassette 9 is read by the existing cassette file device 82;

(2) This search information is transferred into the RAM drive unit B via the input terminal 79.

(2) Then, write to the RAM pack 80. The RA, M pack 80 can store search information for a maximum of IO cassettes, and since it is a nonvolatile memory, it can be carried and stored independently after writing.

As a result, when the shuttle section A searches for the microfilm 8, it is not necessary to read the magnetic tape.

(2) When searching, the RAM pack 80 is transferred to the RAM drive section B and the corresponding search information is read out.

■Then, the read search information is stored in the RAM in shuttle section A.
Transfer to 70.

- After the search information is transferred into the shuttle section A, it can be removed from the RAM drive section B and carried by the shuttle section A alone. The RAM 70 of the shuttle section A makes it possible to search the cassettes 9 for one set.

(2) The RAM drive section B has an input terminal 79, which can be used to transfer search information that has been organized by the personal computer 78 into the RAM drive section B.

Therefore, the search information on the magnetic tape of the cassette 9 used as a cough guard is retrieved from the existing cassette file device (reading device) 82.
If the existing cassette file device 82 breaks down or is in use by someone else and cannot be used, the RAM pack 80 can be read in advance and written to the RAM pack 80 in the RAM drive section B. By loading the RAM pack 80 and transferring the search information in the RAM pack 80 to the RAM 70 in the shuttle section A for storage, it is possible to search the cassette 9 and check the image contents without using the existing cassette file device 82. becomes. In other words, the existing cassette file device 82 can be backed up.

Furthermore, there is no need for a magnetic head in the shuttle section A to read the search information on the magnetic tape.
This simplifies the structure, eliminates the need for stable film advance control to read the search information on the magnetic tape, and reduces the time it takes to read the search information on the magnetic tape.
This replaces the time required to transfer the search information from the RAM drive section B to the shuttle section A, making it possible to significantly reduce the time.

On the other hand, after storing the search information in the RAM 70 and removing it from the RAM drive section B, the shuttle section A first swings the main frame 3 upwardly about the hinge pin 5 with respect to the set plate 2 to open it wide (the fifth (see figure), load the upside down cassette 9 into the cassette loading section 10 of the set plate 2, and pull out the slide frame 4 for assistance.

Next, the main frame 3 is pivoted downward, and the cassette 9 is inserted between it and the set plate 2 to close it (
(See Figure 4).

At this time, the cover 9a of the cassette 9 is held against the lower edge of the front wall 4a of the slide frame 4 while being opened downward.

When the function key 51b of the operation panel 51 is operated, the motor 12 in the main frame 3 rotates and feeds out the microfilm 8 of the cassette 9 with the reader at the beginning.
The feeding of the microfilm 8 is stopped at a position opposite to.

When the user looks through the magnifying glass 57, the image of the microfilm 8 illuminated by the LED 55 becomes visible as an enlarged image.

After that, operate the function key 51b etc. to move the blip mark on the microfilm 8 to the blip sensor 5.
If the microfilm 8 is fed by the motor 12 while being read by the microfilm 8, the images on the microfilm 8 can be viewed continuously.

When the image on the microfilm 8 has been viewed, the rewind/take-out key on the operation panel 51 is pressed, and the motor 12 is reversely rotated to rewind the microfilm 8.

Then, swing the main frame 3 up against the set plate 2 around the hinge pin 5 to open it wide (fifth
(see figure), take out the cassette 9, push the slide frame 4 backward, and swing the main frame 3 downward to close it (see figure 3).

In this way, when the Pure body 1 is not in use, it can be downsized to one size larger than the cassette 9, making it extremely portable.

In addition, the operation panel 51. RAM70. Blip sensor 5
4 etc., it is possible to read the magnetic information on the tape stored in the RAM 70 and the blip marks on the microfilm, and use the search function like a conventional large projection device. Since it is built-in, it can be used even in places without AC power. therefore,
It can be used easily, regardless of time and place.

[Brief explanation of the drawing]

FIG. 1 is an isolated perspective view of the portable microfilm Pure according to the present invention, FIG. 2 is a system diagram of the Pure shown in FIG. 1, and FIG. 3 is a perspective view of the shuttle section of the present invention when not in use. Figure 4 is a perspective view when in use, Figure 5 is a perspective view when loading and unloading a cassette, Figure 6 is a perspective view of the cassette, Figure 7 is a perspective view of the cassette turned over, and Figure 8 is the same as Figure 3. FIG. 9 is a side view of the shuttle section, FIG. 9 is a side view of FIG. 8, FIG. 10 is a bottom view of the film drive mechanism, FIG. 11 is a sectional view of the main part of FIG. The plan view, FIG. 13, is a sectional view of the main part of FIG. 12. 1...Pure main body, 8...Microfilm for projection, 9 Cassette, I2...Horizontal motor, 1
3... Reduction mechanism, 51... Operation panel, 54
-・Blip sensor, 55・・LED (illumination body), 57
...Magnifying glass, 70...RA, M. 71...Control circuit, 72...First input/output terminal,
75...Drive body, 77...Second input/output terminal, 78...Personal computer, 79...Input terminal, 80...RAM pack,
8I... Loading port, 82... Cassette file device, 83... Writing circuit, 84... Transfer circuit, A
...Shuttle section, B...RAM drive section.

Claims (1)

[Claims] (1) A drive mechanism for a projection microfilm housed in a cassette, a blip sensor that detects blip marks on the film, an illumination body that transmits illumination of the film, and a film image that is transmitted and illuminated by the illumination body. a magnifying glass, a first input/output terminal, an operation panel, a RAM for storing the film search information, and the drive based on the operation signal of the operation panel, the information stored in the RAM, and the detection signal of the blip sensor. a shuttle section provided with a control means for controlling the mechanism and the lighting body; an input terminal; a second input/output terminal; a loading section for removably loading a RAM pack; and search information on the magnetic tape of the film. Search information from a reading device that has read the
a writing means for writing into the loaded RAM pack via the input terminal; and a first input/output terminal for reading search information written in the RAM pack and removably connected to the second input/output terminal. A portable microfilm viewer characterized in that it comprises a RAM drive unit provided with a transfer means for storing data in the RAM of the shuttle unit via a RAM drive unit.