JPH0133817B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a film projector having a plurality of built-in film cartridges containing films such as microfilms and roll films.

[Technical background and purpose of the invention]

This type of device searches for and grasps a desired film cartridge among a large number of film cartridges stored in a storage section, transports and loads it into the projection section, and after using the microfilm in the cartridge, it is returned to the storage section. The operation of transporting the product back to the location is performed automatically.

In this type of conventional device, after using the microfilm in a desired cartridge, it is not possible to search for the next cartridge to be used until the cartridge is returned to its original location in the storage section. The disadvantage was that it took a very long time to search for the device before it became usable, resulting in poor utilization of the device.

SUMMARY OF THE INVENTION An object of the present invention is to provide a film projection apparatus which eliminates the above-mentioned drawbacks, allows high-speed searching, and allows efficient use of the apparatus.

〔Example〕

The present invention will be explained below with reference to illustrated embodiments.

FIG. 1 shows a film reader printer equipped with the present invention, and the entire device consists of an upper machine box 1,
It is composed of a lower machine box 2 and an operation panel 3 that commands various operations. A screen 4 is provided on the front of the upper machine box 1.

Inside the upper machine box 1, as shown in FIG.
A first cartridge 10A automatically carried out from a cartridge storage section in the lower machine box 2, which will be described later.
a first cartridge receiving member 1 that holds the cartridge in a first position;
1, a second cartridge receiving member 13 that holds the second cartridge 10B automatically selected from the cartridge storage section in the second position, and an illumination section 15 that illuminates the microfilm sent out from the cartridge 10A or 10B. and imaging lens 1
6, an image sensor 17, a take-up reel 18, and the like are arranged. Second cartridge receiving member 13
is installed above the first cartridge receiving member 11.

The illumination unit 15 includes a lamp 20, a condenser lens 21, and a mirror 22.
The light from the condenser lens 21 and mirror 22
The light is projected onto a microfilm F placed between a pair of glass plates G1 and G2. The light transmitted through the microfilm passes through the imaging lens 16, is reflected by mirrors 23 and 24, and is projected onto the image sensor 17. The image sensor 17 is composed of a light receiving element array such as a CCD, and converts the microfilm image into an electrical signal. After the image signal output from the image sensor 17 is processed by a signal processing circuit, it is sent to a known printer such as a laser beam printer, and a copy image is obtained by the printer. When using the above device as a reader,
The light passing through the imaging lens 16 is projected onto the screen 4 via an optical system (not shown), and the image of the microfilm is observed on the screen. Note that instead of the image sensor 17, a known photoreceptor may be placed at this position to perform copying.

FIG. 3 shows a microfilm feeding passage, in which the microfilm in the first cartridge 10A passes through the first passage 31, the second passage 32, and the microfilm in the first cartridge 10A.
Next, the microfilm in the second cartridge 10B passes between the glass plates G1 and G2 and is guided to the take-up reel 18, and the microfilm in the second cartridge 10B passes through the third passage 33 and the second passage 32, and then passes between the glass plates G1 and G2. is guided to the take-up reel 18 through. 1st passage 31 and 3rd passage
The passages 33 meet at a second passage 32, and the microfilms in the cartridges 10A and 10B are selectively fed through the common second passage 32.

A film guide plate is provided along each of the paths 31 to 33, and each film is guided along a predetermined path by the film guide plate. 35 and 36 are film feed rollers, 37 is a film guide roller, and 38 is a mark detector.

The film feed roller 35 is connected to a motor, and is moved by a solenoid (not shown) between a position in which it contacts the microfilm in the cartridge 10A placed at the first position and a position away from the film. The film feed roller 36 is connected to a motor, and is moved by a solenoid (not shown) between a position in which it contacts the microfilm in the cartridge 10B placed at the second position and a position away from the film.

When using the first cartridge 10A,
In response to the search command, the roller 35 rotates and moves to a position where it contacts the microfilm F in the cartridge 10A, and the roller 35 moves the cartridge 1
The tip of the microfilm is fed out of 0A, and this film F passes through the first passage 31 and the second passage 3.
2 to the take-up reel 18. The take-up reel 18 is driven by a motor at the time of a search command,
When the leading edge of the microfilm is fed, it automatically winds up the leading edge of the film. When the leading end of the microfilm is wound around the take-up reel 18, the rotation of the roller 35 is stopped and the roller 35 is moved to a position away from the film. Thereafter, the film is pulled out from the first cartridge by rotation of the take-up reel and wound onto the take-up reel. When rewinding the microfilm into the cartridge 10A, a winding shaft within the cartridge 10A is rotated in the winding direction by a motor (not shown).

When using the second cartridge 10B,
In response to the search command, the roller 36 rotates and moves to a position where it contacts the microfilm in the cartridge 10B.
The leading end of the microfilm is sent out from B, this film is fed to the take-up reel 18 through the third passage 33 and the second passage 32, and is taken up on the take-up reel 18 in the same manner as described above. When the leading end of the microfilm is wound around the take-up reel 18, the rotation of the roller 36 is stopped and the roller 36 is moved to a position away from the film. Thereafter, the film is pulled out from the second cartridge by rotation of the take-up reel and wound onto the take-up reel. When rewinding the microfilm into the cartridge 10B, a winding shaft within the cartridge 10B is rotated in the winding direction by a motor (not shown).

The mark detector 38 is for detecting the counting mark attached to the side of each frame of the microfilm, and is composed of a photoelectric conversion element, and is arranged on the opposite side of the illumination section 15 with the film sandwiched therebetween. The mark on the microfilm has a different density from the surrounding area, and when the microfilm is fed, the mark detector 38
The mark detector 38 outputs a mark detection signal by interrupting the light incident on the mark. The mark detection signal that is output when the mark detector detects a mark is counted by the counting section, and the counted value of the counting section is compared with the address number of the desired frame, and when the two match, the film is stopped. A desired top can be searched, and the searched top is placed in the projection optical path. The details of this retrieval device are described in Japanese Patent Publication No. 15691/1983, and will therefore be omitted here.

Inside the lower machine box 2, as shown in FIG.
A cartridge storage section 50 that stores a large number of cartridges 10, and one of the cartridges in the storage section 50.
Cartridge gripping and transporting mechanism 5 that selects and takes out one cartridge and transports it to the first or second position.
1 is placed.

The cartridge storage section 50 includes a drum 50 that stores a large number of cartridges 10 in radial alignment.
The drums A to 50F are stacked at predetermined intervals, and each drum 50A to 50F rotates around a central axis 52. Each drum is of identical construction with radial compartments for separately housing each cartridge.

The cartridge gripping and transporting mechanism 51 is provided with an elevating member 56 that moves up and down in the direction of arrow A along a ball 55 vertically installed near the cartridge storage section 50, and an elevating member 56 that moves horizontally on the elevating member 56. Moving member 5 that moves forward and backward (in the direction of arrow B)
7, and a hand 58 that is disposed at the tip of the moving member 57 and grips the cartridge. The elevating member 56 can move up and down from the top to the bottom of the ball 55. The moving member 57 is configured to reciprocate between a forward end position where the cartridge in the storage part 50 can be gripped by the band 58 and a backward end position where the cartridge gripped by the hand is positioned outside the storage part 50. The ball 55 is designed to be able to rotate in both directions, and by rotating the ball 55, the hand 58 can be directed toward the storage section 50 or toward the first and second cartridge receiving members 11 and 13. be able to. As shown in FIG. 2, the hand 58 has a claw structure capable of gripping the cartridge stored in the storage section 50, and is capable of gripping and releasing the cartridge.

In the above configuration, in the initial state, the moving member 57
is at the backward end position shown in Figure 4, and hand 5
8 faces the storage section 50, and the elevating member 56 is at the bottom or intermediate home position of the ball 55.

Now, if you input the number of the desired cartridge (first cartridge) and the number of the desired top in this cartridge into the keyboard of the operation panel 3 and command to start the search, the elevating member 56 will move to accommodate the desired cartridge. The drum rotates as it moves up and down to the drum position. When the compartment housing the desired cartridge reaches a position where it can be gripped by the hand 58, the rotation of the drum is stopped and the desired cartridge and the hand 58 face each other. Next, the moving member 57 is advanced to the forward end position, and when the hand 58 comes into contact with a desired cartridge, the hand is operated to grip the cartridge. After gripping the cartridge, the moving member 57 is moved backward, and when the moving member 57 reaches the backward end position, the elevating member 56
is raised and the pole 55 is turned half a turn.
When the pawl 55 rotates half a turn, the hand 58 is directed toward the cartridge receiving members 11 and 13.
When the elevating member 56 rises to a position facing the first cartridge receiving member 11, the elevating member stops. Next, the moving member 57 moves forward, and the first cartridge gripped by the hand is inserted into the first cartridge receiving member 11 and held at the first position.
When the first cartridge 10A is held by the first cartridge receiving member 11, the hand 58 releases the first cartridge.

Next, the feed roller 35 rotates and comes into contact with the film in the first cartridge 10A placed at the first position to feed the microfilm out of the cartridge, and a desired frame in the microfilm is retrieved.

While searching for the first cartridge, input the number of the desired cartridge to be used next (second cartridge) and the number of the desired top in this cartridge into the keyboard of the operation panel 3 to start the search. When commanded, after the hand 58 releases the first cartridge 10A, the movable member 57 retreats, the pole 56 rotates half a turn in the opposite direction to the above, the elevating member 51 descends, and the drum in the storage section 50 rotates. Thereafter, the operation is the same as described above.
That is, after the hand 58 grasps the second cartridge to be used next, the elevating member 56 rises and the pawl 55 rotates half a turn. When the elevating member 56 rises to a position facing the second cartridge receiving member 13, the elevating member stops. Next, the moving member 57 moves forward, and the second cartridge gripped by the hand is inserted into the second cartridge receiving member 13 and held at the second position. Second cartridge 10B
is held by the second cartridge receiving member 13, the hand 58 releases the second cartridge. Therefore, while the first cartridge is in use, the second cartridge to be used next can be selected and transported to the second position.

After using the microfilm F in the first cartridge 10A in the reader section or printer section, when rewinding is commanded, the microfilm F is rewound into the cartridge 10A, and after the rewinding is completed,
The lifting member 56 that was facing the second cartridge receiving member 13 descends to a position where it faces the first cartridge receiving member 11. When the lifting member 56 faces the first cartridge receiving member 11, the moving member 57 advances and the hand 58 is used first cartridge 1
Grab 0A and then retreat. Next Paul 55
As the drum rotates half a rotation, the elevating member 56 descends and the drum rotates. When the elevating member 56 descends to the drum position to return the first cartridge 10A and rotates to a position where a predetermined compartment of the drum faces the hand 58, the moving member 57 moves forward and removes the used first cartridge. Return to original compartment. If an instruction is given to search for the third cartridge to be used next to the second cartridge 10B after this return or during the return, the above-mentioned operation is repeated and the cartridge receiving member that is opening the third cartridge is (In this case, the first cartridge receiving member 1
1 is open).

On the other hand, when the rewinding of the first cartridge 10A is completed, the feed roller 36 rotates and contacts the microfilm in the second cartridge 10B placed at the second position, and feeds the microfilm out of the cartridge. A search for the desired piece is performed.

After using the microfilm in the second cartridge, when the microfilm is rewound to the second cartridge, after the third cartridge to be used next is loaded into the first cartridge receiving member 13, the cartridge is gripped and transported. Mechanism 51 returns the second cartridge to a given drum compartment. While the microfilm in the cartridge is being used in the projection section in this way, the next cartridge to be used is selected and transported to the projection section, and the next cartridge to be used is prepared in a usable position.
You can return used cartridges. Therefore, while the film of a desired cartridge is being used or the used cartridge is being returned, the microfilm of the next cartridge to be used can be used, so that the projection apparatus can be used efficiently.

Although two cartridge receiving members are provided in the above-mentioned embodiment, three or more cartridge receiving members are provided, and the cartridge is selectively transported to each cartridge receiving member by the cartridge transporting means and held in each cartridge receiving member. The loaded cartridges may be selectively fed into a common path.

Further, the mechanism for selecting a cartridge stored in the storage section is not limited to the embodiment, and any known cartridge selection mechanism may be used.

〔effect〕

As described above, according to the present invention, the search device can be used efficiently and the search time can be shortened.

[Brief explanation of drawings]

Fig. 1 is an external view of a film reader printer equipped with the present invention, Fig. 2 is a perspective view showing the inside of the upper machine box, Fig. 3 is a side view showing the film feeding passage, and Fig. 4 is a lower machine box. It is a side view showing the inside of. 10... Cartridge, 15... Lighting section, 16
...Imaging lens, 18...Take-up reel, 50...
Cartridge storage section, 51... Cartridge gripping and transporting mechanism.

Claims (1)

[Claims] 1. A cartridge storage section in which a plurality of cartridges holding films are stored, and a cartridge that takes out a selected cartridge from the cartridge storage section and transports the cartridge to a first holding position and a second holding position. a conveying means; a first transport means for removing the film from the cartridge placed in the first holding position and transporting the film to the common illumination position;
a transport means; a second transport means for removing the film from the cartridge placed in the second holding position and transporting the film to the common illumination position;
a conveying means; and a first conveying means and a second conveying means configured to selectively operate one of the first conveying means and the second conveying means to convey the film from the first holding position or the second holding position to the common illumination position. It has a control means for controlling the two conveying means, and a projection means for projecting an image of the film conveyed to a common illumination position onto a projection surface, and the film of the cartridge placed in one of the holding positions is illuminated by the common illumination. 1. A film projection apparatus characterized in that, when being transported to one position, a cartridge containing a film to be used next is transported to the other holding position and is kept on standby.