JPH01314243A - Automatic developing apparatus - Google Patents

Abstract

PURPOSE:To obtain a developed film which is not injured by transferring a suspended undeveloped film to the developing chamber of a developing tank in a light room, a 1st. washing chamber, a fixing chamber and a 2nd. washing chamber, in this order, and by processing automatically the film in the same manner as a development processing by hand. CONSTITUTION:The title apparatus provides a developing box 2 in which a light coming from an outside is shut out so as not to expose the undeveloped film, and has an inspection hole 9 capable of visibling the inside of the box, and is constituted of a shielding material. The film suspended by a film hanger is transferred by automatically and stepwisely advancing the film to the 1st. washing chamber 31, the fixing chamber 25 and the 2nd. washing chamber 32 from the developing chamber 23 in this order by operating a stepwise carrier system 4 of the film repeating rotation and stoppage of a motor 5. Accordingly, the film is developed automatically in the same manner as the development processing by hand, and the transfer of the film is not carried out by a roller. Thus, the injury of the film during transferring it is prevented, and the generation of development unevenness is lessened, thereby being obtained a fine developed film.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an automatic developing device for film or photographic paper.
Without using any rollers, undeveloped film or photographic paper suspended by a film hanger is moved in the order of the developing chamber in the developing tank, the first washing chamber, the fixing chamber, and the second washing chamber in the bright room. The present invention relates to an automatic developing device capable of obtaining a beautiful developed film or photographic paper without any damage to the film or photographic paper by automatically performing the same operation as manual development.

BACKGROUND OF THE INVENTION Conventionally, in order to develop undeveloped photographic film or photographic paper, an operator has performed the developing process while checking the image with the naked eye in a constant temperature bath installed in a dark room. With such manual development processing, it is necessary to manage not only the development time but also the temperature of the developer and fixer by relying on intuition while checking the thermometer, and it is not always necessary to perform the development processing under optimal conditions. The drawback was that it required considerable skill, and that unskilled people would not be able to obtain satisfactory results. In addition, the darkroom requires a considerable amount of space and is dark, making it difficult to work (particularly in cases where X-ray dental film must be developed each time it is taken, such as in a dentist's office, it is difficult to develop the film). Having to go into a dark room to perform the work was undesirable, as it significantly reduced work efficiency.

Furthermore, in order to eliminate the disadvantages of manual development processing in a darkroom, an automatic development device using a roller type that allows development processing to be performed in a bright room has been proposed and put into practical use. , a large number of rollers are required to transport the film, and these rollers must be lowered a predetermined distance each time to immerse the film in the developer, fixer and wash water, respectively.
Therefore, the arrangement of the rollers will inevitably meander, and the film that is conveyed through the rollers will be moved while being meandered by many rollers, and will be repeatedly subjected to bending action, making it easy for the film to be damaged. There were drawbacks. Furthermore, if the roller is dirty and the reroller does not rotate smoothly, there is a drawback that uneven development occurs. Furthermore, since the time required for development and fixing must be the same, there is a drawback that fixing may not be possible depending on the film. Since the rollers become quite dirty with use, the rollers must be cleaned about once a week, and this cleaning operation is troublesome and requires a lot of effort.

Purpose The present invention has been made in order to eliminate the drawbacks of the prior art described above, and its purpose is to block external light rays so that undeveloped film or photographic paper is not exposed to light, and to prevent internal light from being exposed. A developing box made of a light-shielding material and having a viewing window in which the developer can be seen; a developing chamber in which a developing solution is stored; and a first developing chamber provided adjacent to the developing chamber and in which cleaning water is stored.
A developing box divided into at least four parts: a washing chamber, a fixing chamber provided adjacent to the first washing chamber and containing a fixing solution, and a second washing chamber provided adjacent to the fixing chamber and containing washing water. A developing tank housed in the developing tank, a developing chamber of the developing tank, a first washing chamber, a fixing chamber, and a second washing chamber are moved in this order by stepping a film hanger on which undeveloped film or photographic paper is suspended. The mechanism includes a film incremental transport mechanism, a motor that drives the film incremental transport mechanism, and a plurality of timers that control the rotation and stop times of the motor. The stepwise conveyance mechanism is operated to automatically advance and convey the film or photographic paper suspended by the film hanger from the developing chamber to the first washing chamber, the fixing chamber, and the second washing chamber in this order. This enables automatic development in exactly the same way as manual development, prevents damage to the film or photographic paper during transportation, and reduces the risk of uneven development by not using any rollers. The purpose is to make it possible to obtain beautiful developed film or photographic paper, and to make it possible for anyone to easily develop film or photographic paper so that anyone can acquire skill in developing and processing film or photographic paper. The object of the present invention is to eliminate the need for such processing, and to dramatically improve the working efficiency of X-ray film development, especially in dentists and the like. Another object of the present invention is to facilitate the maintenance and management of the automatic developing device by eliminating the need for cleaning the rollers.

Another purpose is to eliminate the need to enter a dark room and allow film or photographic paper to be developed in a bright room.
The aim is to improve the work environment by reducing the space required and eliminating the hassle of entering a darkroom. Another purpose is to improve work efficiency by providing a viewing window in a part of the developing box so that work can be done without fumbling around inside the developing box. That's true. Another purpose is to provide a plurality of timers that control the motors that drive the progressive film transport mechanism, so that the developing time and fixing time can be set arbitrarily. To enable development and fixing processing even for film. Yet another objective is to extend the life of the developer and fixer solutions by employing timers that can control the time of each process.

Another object of the present invention is to control the stoppage of the elevating member of the film progressive conveyance mechanism when it is raised, without using normal means such as placing a limit switch in an area where oxidizing gas exists around the developing tank. The motor that drives the film advancing transport mechanism is controlled by a timer so that the elevating member is always stopped at a fixed position at the top, and the electrical components are not damaged at all by the oxidizing gas that evaporates from the developing tank in the developing box. The goal is to make sure that there are no problems. Another purpose is to control the temperature of the developer and fixer by controlling the developer heater installed at the bottom of the developing chamber and the fixer heater installed at the bottom of the fixing chamber, and the power to these heaters. By providing a temperature control device that can be set arbitrarily, the temperatures of the developer and fixer can be adjusted independently and arbitrarily, and this also enables optimal development and fixing processing. That is to say.

Structure In short, the present invention (claim 1) is made of a light-shielding material that blocks external light rays so that undeveloped film or photographic paper is not exposed to light, and has a viewing window that allows the inside to be seen. A developing box, a developing chamber containing a developer, a first washing chamber provided adjacent to the developing chamber and containing washing water, and a first washing chamber provided adjacent to the first washing chamber containing a fixer. a developing tank accommodated in the developing box and divided into at least four parts, including a fixing chamber and a second washing chamber provided adjacent to the fixing chamber and containing washing water; the developing chamber of the developing tank; 1. A film advancing conveyance mechanism configured to step and move a film hanger on which the film or photographic paper is suspended in the order of a washing chamber, the fixing chamber, and the second washing chamber; It is equipped with a motor that drives a transport mechanism and a plurality of timers that control the rotation and stop times of the motor, and by repeating the rotation and stop of the motor, the film progressive transport mechanism is operated and the film is suspended by the film hanger. The suspended film or photographic paper is configured to be automatically advanced and conveyed from the developing chamber to the first washing chamber, the fixing chamber, and the second washing chamber in this order. be.

The present invention (Claim 2) also provides a developing device made of a light-shielding material that blocks external light rays so that undeveloped film or photographic paper is not exposed to light, and has a viewing window that allows the inside to be seen. a box, a developing chamber in which a developer is stored, a first washing chamber provided adjacent to the developing chamber and in which washing water is stored, and the first washing chamber;
The fixing chamber is arranged adjacent to the washing chamber and contains a fixing solution, and the second washing chamber is arranged adjacent to the fixing chamber and contains washing water. A developing tank, and fixedly provided on both left and right sides of the developing tank in the traveling direction of the film or photographic paper, the vicinity of the central part of each chamber of the developing tank in the traveling direction is a valley part, and the vicinity of the partition part of each chamber is a valley part. The film hanger, which is formed in a concavo-convex shape forming a crest and suspends the film or photographic paper, slides down along a slope from the crest to the trough and supports the film hanger in the trough. a pair of cam plates arranged so as to be vertically movable at a predetermined interval on both the right and left sides of the pair of cam plates, the developing chamber being formed with a downward slope extending from the developing chamber to the first washing chamber; a first slope for transporting the film hanger located in the trough of the cam plate to the first washing chamber; and a first slope formed similarly to the first slope and located in the trough of the cam plate in the first washing chamber. a second slope for transporting the film hanger to the fixing chamber; and a third slope formed similarly to the first slope for transporting the film hanger in the fixing chamber to the second washing chamber; The cam plate is configured such that the peaks thereof are located on the rear side in the direction in which the film or photographic paper travels than the valleys of the cam plate, and the film or photographic paper is sequentially advanced and conveyed to each of the chambers while being moved up and down. a pair of film progressive conveyance members configured as shown in FIG. A pair of winding transmission members, a motor that drives the winding transmission members, and a plurality of timers that control rotation and stop times of the motors, and the film advances by repeating the rotation and stopping of the motors. The film or photographic paper suspended by the film hanger is automatically advanced and transported from the developing chamber to the first washing chamber, the fixing chamber, and the second washing chamber in this order by moving a conveying member up and down. The invention is characterized in that it is configured to do so.

The present invention (claim 4) also provides a developing device made of a light-shielding material, which blocks external light rays so that undeveloped film or photographic paper is not exposed to light, and has a viewing window in which the inside can be seen. a box, a developing chamber in which a developer is stored, a first washing chamber provided adjacent to the developing chamber and in which washing water is stored, and the first washing chamber;
The fixing chamber is arranged adjacent to the washing chamber and contains a fixing solution, and the second washing chamber is arranged adjacent to the fixing chamber and contains washing water. a developing tank, the developing chamber of the developing tank, and the first
a film advancing conveyance mechanism configured to step and move a film hanger on which undeveloped film or photographic paper is suspended in order of a washing chamber, the fixing chamber, and the second washing chamber;
comprising a motor that drives the film progressive conveyance mechanism and a plurality of timers that control rotation and stop times of the motor,
and a developer heater provided at the bottom of the developing chamber and a fixer heater provided at the bottom of the fixing chamber, and by controlling power to these heaters, the temperature of the developer and the fixer is adjusted to an arbitrary value. The device is characterized by comprising a temperature control device that can set the temperature to .

The present invention will be explained below based on embodiments shown in the drawings. 1st
4, an automatic developing device 1 according to the present invention includes a developer box 2, a developer tank 3, a film progressive conveyance mechanism 4, a motor 5, and a plurality of timers 6.

The developing box 2 blocks external light so that the undeveloped film 8 (this may be photographic paper, but the case of film will be explained below) is not exposed to light, and also has a viewing window 9 through which the inside 2a can be viewed. The viewing window 9 is provided in the center of the ceiling Fj, 2f, and is made of special glass, which absorbs most of the light that exposes the film 8. When you look at the inside 2a of the developing box 2 through the viewing window 9, it looks dark and red, but you can now look through the window to take out the film 8 and attach it to the film hanger 10. ing. An opening 2b is provided in the upper half of the front surface of the developing box 2, and a lid 11 is removably attached to the opening.
A working hole 11a is drilled into which the worker inserts the workpiece, and a pair of backs 13 made of black cloth are attached to the working hole. Inside the developer box 2, a case 14 for undeveloped film 8 is located at the back of the developer tank 3.
A space 2c is formed for accommodating the film 8 and for taking out the film 8 from the case. A bracket 15 is fixed to the front left side surface 2d of the developer box 2.
The bracket has one end 16a of each of an external drain pipe 16, an internal overflow drain pipe 18, a developer supply/discharge pipe 19, a water supply pipe 20, and a fixer supply/discharge pipe 21.

18a, 19a, 20a, and 21a are inserted and gripped, respectively.

Referring also to FIG. 5, the outside tank drain pipe 16 is connected to the space 2c of the developer box 2, and the in-tank overflow drain pipe 1B is connected to the drain sump 3a provided at the bottom of the developer tank 3. is connected to the developing chamber 23, the water supply pipe 20 is connected to the first washing chamber 31 and the second washing chamber 32, and the fixer supply pipe 21 is connected to the fixing chamber 25.

The developing tank 3 includes a developing chamber 23 in which a developing solution 26 is stored, a first washing chamber 31 that is provided adjacent to the developing chamber and in which washing water 28 is stored, and a first washing chamber 31 that is adjacent to the first washing chamber. The developing box 2 is divided into at least four parts: a fixing chamber 25 which is provided and accommodates a fixer 29; and a second washing chamber 32 which is provided adjacent to the fixing chamber and which accommodates washing water. . These chambers are partitioned by partitions 3b, 3c, and 3d, and a developer heater 33 and a fixer heater 34 are provided only in the developing chamber 23 and the fixing chamber 25, respectively. 1st
In the washing chamber 31, the upper end 35a is the surface 28a of the washing water 28.
An overflow pipe 35 opened at is disposed,
The lower end 35b of the overflow pipe is connected to the drainage basin 3a. The second washing chamber 32 is provided with an overflow pipe 36 whose upper end 36a opens at the surface 28a of the washing water 28, and the lower end 36 of the overflow pipe 36.
6b is similarly connected to the drainage basin 3a.

In FIG. 2, the film advancing transport mechanism 4 advances and moves the undeveloped film 8 in the order of the developing chamber 23 of the developing tank 3, the first washing chamber 31, the fixing chamber 25, and the second washing chamber 32. The main parts are a pair of cam plates 38, a pair of film advance conveyance members 45, an elevating member 40, and a pair of winding transmission members 41.

The pair of cam plates 38 are fixedly provided on both the left and right sides of the developing tank 3 in the film traveling direction, and the vicinity of the central part of each chamber in the film traveling direction of the developing tank becomes a valley part 38a, and the partition part 3b of each chamber, 3c and 3d are formed in an uneven shape with peaks 38b, and the film hanger 10 for suspending the film 8 is formed on the slope 3 from the peaks 38b to the valleys 38a.
8c to support the film hanger IO at the trough 38a. and valley 38a
Each cam plate 3 has four pieces and three functioning mountain parts 38b.
It is set at 8.

In FIG. 2, the pair of film progressive conveyance members 45 are
A pair of cam plates 38 are disposed on both left and right sides of the cam plate 38 so as to be movable up and down at a predetermined distance from each other, and extend from the developing chamber 23 to the first washing chamber 3.
1 and a first slope 45a which is formed on a downward slope and transports the film hanger 10 located in the valley part 38a of the cam plate 38 in the developing chamber 23 to the first washing chamber 31; 1. A second slope 45b that transports the film hanger 10 located in the trough 38a of the cam plate 38 in the washing chamber 31 to the fixing chamber 25; and a third slope 45c that is conveyed to the washing chamber 32, and each slope 45a
, 45b, 45c are the valleys 3 of the cam plate 38.
It is configured to be located on the rear side of the film 8 in the traveling direction of the film 8, and is configured to move the film 8 up and down while sequentially advancing and conveying it to each chamber of the developing tank 3. In FIG. 2, the elevating member 40 is configured to be movable in the vertical direction while holding the film progressive conveyance member 45. The film hanger 10 and the film 8 have a predetermined weight as a weight to be lowered by their own weight at a speed of 0 degrees, and both ends 40
A is bent into a U-shape and slidably fits into a guide rod 48 fixed to a bracket 46 fixed to the developer box 3, and is attached to a part of the chain 41 on the rear side, which is an example of a winding transmission member. Fixed.

A spacer 49 loosely fitted to the guide rod 48 is disposed below the elevating member 40, and a spacer 49 is provided between the spacer and the bracket 46 further below to gently prevent the elevating member 40 from descending when stopped. A compression spring 50 is wrapped around the bridge to stop it.

A pair of identical chains 41 are provided that are endlessly wound around an upper driving sprocket 51 and a lower driven sprocket 52 so that the lifting member 40 is attached to a part of the chain and runs in the vertical direction. ing. The driven sprocket 52 has a shaft 53 fixed to the bracket 46.
The drive sprocket 51 is attached to both ends 54a of the drive shaft 54. Drive shaft 5
4 is rotatably supported by a bearing box 55 fixed to the top plate 2r of the developer box 2. The upper part of the bearing box 55 is open, and the oxidizing gas rising from the developing tank 3 will leak out from here. To prevent this, the lower surface 56a of the cover plate 56 is provided with a corresponding part of the bearing box. Seal member 5
8 is attached and the cover plate 56 is placed over the developing box 2, the sealing member will come into close contact with the upper surface 55a of the bearing box 55, and oxidizing gas will never enter the electrical component housing section 2e of the developing box 2. It is designed to prevent intrusion.

The motor 5 is for driving the chain 41. A sprocket 61 is fixed to its rotation shaft (not shown), and another chain 60 is wound around the sprocket, and the chain is connected to the drive shaft 54. fixed sprocket 6
It is wrapped around 3.

In FIGS. 1 and 3, timers 6 are used to control the rotation time and stop time of the motor 5, and in the illustrated embodiment, a total of six timers 6 are provided.

That is, the timer 6 is a development timer 6 that sets the development time.
5, a first rising timer 71 that controls the rising time of the lifting member 40 rising from the developing chamber 23, a washing timer 66 controlling the first washing time, and a rising of the lifting member 40 rising from the first washing chamber 31. Second rising timer 72 controlling time
, a fixing timer 68 for setting the fixing time, and a fixing chamber 25.
and a third rising timer 73 for controlling the rising time of the lifting member 40 rising from the ground, and these are each connected in series to the drive circuit 74 of the motor 5 as shown in FIG. Also, heaters 33 and 34, a power switch 75, a power-on indicator lamp 76, a temperature indicator lamp 78, a variable resistor 79 which is an example of a temperature control device for the developer 26 and the fixer 29,
A developing indicator lamp 80, a fixing indicator lamp 81, a start switch 82, and a fuse 83 are connected to a power source 84 as shown. Electrical component housing section 2 of developing box 2
In e, these timers 6 are arranged horizontally or vertically, and include a first rise timer 71, a flush timer 66,
The second rising timer 72 and the third rising timer 73 are arranged vertically, and the developing timer 65 and fixing timer 68 are arranged horizontally.

The operation panel 2g of the developer box 2 includes, in order from the left in FIG. An indicator lamp 78, a developing indicator lamp 80, a fixing indicator lamp 81, and a start switch 82 are arranged as shown.

Function The present invention is constructed as described above, and its function will be explained below. In FIG. 1, the lid plate 56 is closed to the developing box 2, and the lid 11 is attached to seal the opening 2b. As a result, the inside 2a of the developing box 2
is sufficiently dark, but it is possible to develop the film 8 in a bright room. That is, since enough light enters through the viewing window 9' to allow the interior to be visually recognized, it is possible to easily attach the film 8 to the film hanger 10 by looking into the interior through the viewing window.

Prior to the development work, first, the developer 26 is injected into the developing chamber 23 from the developer supply/discharge pipe 19, and is filled up to the height of the upper ends 35a, 36a of the overflow pipe 35, 36, as shown in FIG. . Similarly, the fixer 29 is injected into the fixing chamber 25 from the fixer supply/discharge pipe 21. Similarly, wash water 28 is injected into the first washing chamber 31 and the second washing chamber 32 through the water supply pipe 20. The amount of washing water 28 is approximately 41 in the case of reservoir washing! It is sufficient to inject the washing water 28 into the first washing chamber 31 and the second washing chamber 32, respectively, once. However, in the case of flushing with running water, the water supply pipe 20 is connected to the water faucet (not shown) via a pressure reducing valve (not shown). (not shown), the cleaning water 28 is continuously injected, overflows from the overflow pipes 35 and 36, and is first collected in the drainage basin 3a, and then drained to the outside through the overflow drainage pipe 18.

When preparation for development is completed as described above, the power switch 75 on the operation panel 2g is turned on.

As a result, the power indicator lamp 76 lights up, the heater 33.34 is energized from the power source 84, and the energization is continued until the temperature reaches the temperature preset by the temperature control knob 79a of the temperature control device, and the developer 26 and fixer 29 When the temperature reaches a predetermined temperature, for example 28°C, the temperature display lamp 78
lights up, indicating that development and fixing processing is possible. Thereafter, the temperatures of the developing solution 26 and the fixing solution 29 are maintained at, for example, the above-mentioned 28.degree. C. by a temperature control device.

Then, as shown in Figure 1, the lid 11 is removed once and the undeveloped film 8 (for example, the size of the film may be domestic (including children's), pantomo, oil colander, hole-printed, etc., or various types of photographic paper. Case 1 where .) is not exposed
4 is put into the innermost space 2C of the developing box 2 as shown by arrow A, and the lid 11 is attached to the developing box 2 as shown by arrow B. Then, put both hands 12 into the developing box 2 through the entrance 13a of the back of the hand 13, open the lid of the case 14 containing the film 8, take out the film 8, and use the pair of clips 10a attached to the film hanger 10 to open the film 8. The film is attached to a film hanger lO with both left and right ends sandwiched between them and suspended, and the film 8 is first placed in a developing chamber 23 filled with a developer 26. In this case, the film hanger 10 is placed in and supported by the troughs 38a of the pair of cam plates 38 in the developing chamber 23, and the film 8 is suspended in the center of the developing chamber 23 in the direction in which the film 8 travels. It will be immersed in the liquid 26.

Therefore, remove both hands 12 from the back 13 and use the operation panel 2.
When the start switch 82 on g is turned on, the developing indicator lamp 80 lights up. In this case, the entrance 13a of the back 13
Since the rubber 13b is included in the housing, it will shrink and close when the hands 12 are removed, so there is no need to worry about light entering the developing box 2 from there. Note that this completes the manual work, and the automatic developing device 1 then automatically performs all of the development, first washing, fixing, and final washing operations automatically. This automatic developing operation will be explained step by step below.

When the start switch 82 is turned on, power is supplied from the power supply 84 to the development timer 65 as shown in FIG. 3, and the timer starts measuring the development time. During this time, the power supply to the motor 5 is stopped, and the - pair of film progressive conveyance members 4
5 is lowered by the weight of the elevating member 40 and stopped at the lowest point, and development processing is performed using a developer 26 in the developing chamber 23 .

When the development timer 65 completes measuring the predetermined development time, the development indicator lamp 80 turns off, and the motor 5 is energized to rotate, and the sprocket 61,
The chain 41 rotates clockwise in FIG. 2 via the chain 60, sprocket 63, drive shaft 54, and pair of sprockets 51, and the elevating member 40 begins to rise. As a result, the first rising timer 71 starts counting time, and the film progressive conveyance member 45 rises, causing the film hanger lO
is lifted from the developing chamber 23 as shown by arrow C in FIG. It stops when it comes into contact with it. This causes the film hanger 10 to automatically advance one step during its ascent. The lower end of the film 8 is automatically pulled out from the developing chamber 23 and reaches the center of the first washing chamber 31.

Then, when the film progressive conveyance member 45 reaches the top dead center, the first rise timer 71 completes timing, the power supply to the motor 5 is stopped, the chain 41 is stopped, and the film progressive conveyance member 45 reaches the top dead center. Stops at dead center.

Immediately, the film advances I due to the weight of the lifting member 40.
@Feeding member 45 and film hanger 10 are indicated by arrow E in FIG.
As shown, the descent begins at a moderate speed. That is, when the elevating member 40 descends, the chain 41 rotates counterclockwise in the figure, rotating the motor 5, which acts as a generator and acts as a brake, thereby reducing the descending speed of the elevating member 40. It slows it down. When the elevating member 40 comes into contact with the spacer 49, the compression spring 50 is bent and reduces the impact when the elevating member 40 stops at the bottom dead center.
, the film advance conveyance member 45 and the film hanger 10 are stopped quietly, the film hanger is supported by the valley part 38a of the cam plate 38 in the first washing chamber 31, and the film 8 is flushed with the washing water of the first washing chamber 31. 28, and the first water wash begins.

Here, the film hanger 10 moves from the first slope 45a of the film progressive conveyance member 45 to the slope 38C of the cam plate 38.
When the tray is passed, the film hanger 1O is placed in the middle of the slope, so it slides down along the slope as shown by arrow F in FIG. 5, and stops only when it reaches the trough 38a. As a result, the film hanger 10 is moved to its peak portion 4 while the film progressive conveyance member 45 is stopped at its bottom dead center.
5d, and the next time you ascend, you are already ready to descend on the next second slope 45b.

Further, at the same time as the energization to the motor 5 is stopped by the first rising timer 71, the flush timer 66 starts timing, and when the predetermined flush time has elapsed, the flush timer 66 completes timing and the energization to the motor 5 is stopped. is started.

Immediately, the second ascending timer 72 starts counting, and the rotation of the motor 5 causes the chain 41 to rotate clockwise in FIG. During this upward movement, the film hanger lO slides down on the second slope 45b of the film progressive conveyance member 45 as shown by arrow H, and comes into contact with the peak 45d and stops. Then, when a predetermined period of time has elapsed, the second rising timer 72 completes timing, the motor 5 is thereby stopped, and the film 8 suspended by the film hanger 10 reaches the position of the fixing chamber 25. Ready to enter.

When the motor 5 stops, the film advance conveyance member 45 descends as shown by the arrow I in FIG. The film 8 slides down the slope as shown by the arrow J, reaches the trough 38a and stops, is supported by the trough, and the film 8 is placed in the fixing chamber 2.
It is immersed in the fixing liquid 29 in 5.

When the motor 5 stops, the fixing timer 68 starts counting, and the fixing indicator lamp 81 lights up. When the predetermined fixing time has elapsed, the fixing timer completes counting, and the power supply to the motor 5 starts again. Ru. This completes the fixing process, the motor 5 starts rotating, and the film 8 is raised by the film hanger 10 as shown by the arrow.

At the same time as the motor 5 starts to be energized, the third rise timer 73 starts timing, and the film progressive conveyance member 45
When the film hanger 10 starts to rise, the film hanger 10 has already reached the peak 4 of the third slope 45c of the film progressive conveyance member 45.
Since the film hanger 10 has moved one step beyond 5d, the film hanger 10 has reached the third step of the film transport member during the upward movement.
The film 8 slides down on the slope 45C as shown by the arrow until it reaches the trough 45e and stops, and the film 8 reaches the position of the second washing chamber 32.

When the timing of the third ascending timer 73 is completed, the power supply to the motor 5 is stopped and the motor 5 is stopped. Immediately, the film progressive conveying member 45 descends as shown by the arrow M by the weight of the elevating member 40, and the second It enters the washing chamber 32 and the final washing process is performed. Note that all of the timers mentioned above have finished operating during this final washing process, so the time for this washing process is appropriate, and the operator should remove the developed film along with the film hanger after an appropriate time has elapsed. 8, but in this case, the lid 11 is first removed from the developing box 2 and the film hanger 10 is taken out from the second washing chamber 32.

After completing the first development and fixing process in this way,
Subsequently, the next film 8 is placed in the developing chamber 23, 111 is closed, and the start switch 82 is turned on.
The automatic developing device 1 automatically processes everything after that, so there is no need for manual work after that.

As described above, according to the present invention, the film 8 is transferred from the developing chamber 23 to the first washing chamber 31 to the fixing chamber 2 without using a roller unlike a conventional roller type automatic developing device (not shown).
5 and the second washing chamber 32 in exactly the same way as in the case of manual development processing, the film 8 can be transported step by step in exactly the same way as in the case of manual development processing, so there is no risk of damaging the film 8 and there is no uneven development. The development process can be carried out very smoothly. In the illustrated embodiment, the process from development to fixing and washing can be completed in 90 seconds.

Further, the film 8 can be similarly developed not only for X-ray dental film used by dentists but also for 35 mm, blown 2, etc. films taken with an ordinary camera. Further, photographic paper can also be used in the same manner.

Furthermore, if the film advancing transport mechanism 4 is out of order, the developing, washing, and fixing processes can be performed manually in a bright room as well.

Effects As described above, the present invention provides a developing box made of a light-shielding material, which blocks external light rays so that undeveloped film or photographic paper is not exposed to light, and has a viewing window in a part of the box that allows the inside to be seen. a developing chamber in which a developing solution is stored; a first washing chamber provided adjacent to the developing chamber and containing washing water; and a fixing chamber provided adjacent to the first washing chamber and containing a fixing solution. and a second washing chamber provided adjacent to the fixing chamber and containing washing water; a developing tank housed in a developing box and divided into at least four parts; a developing chamber of the developing tank, a first washing chamber, and a fixing chamber; a film step-by-step conveyance mechanism configured to step-by-step move a film hanger on which film or photographic paper is suspended in order of the chamber and the second washing chamber; a motor for driving the film-step-by-step conveyance mechanism; and an acid motor. The motor is equipped with a plurality of timers for controlling the rotation and stop times of the motor, and by repeating the rotation and stop of the motor, a film advancing conveyance mechanism is actuated to transport the film or photographic paper suspended by the film hanger from the first developing chamber to the first developing chamber. Since the structure is configured so that the washing chamber, the fixing chamber, and the second washing chamber are automatically advanced and conveyed in that order, automatic development can be performed in exactly the same way as manual development, and the film or photographic paper can be conveyed in the same way. Since there is no need to use any rollers, it is possible to prevent damage to the film during transportation, eliminate the risk of uneven development, and obtain beautiful developed film or photographic paper. However, since it becomes possible to easily develop film or photographic paper, there is no need for W1 training in the processing of film or photographic paper, and X%? ! The effect of dramatically improving the efficiency of film development processing can be obtained. Furthermore, since cleaning work for the rollers can be eliminated, maintenance of the automatic developing device can be facilitated. In addition, there is no need to go into a darkroom, and the film or photographic paper can be developed in a bright room, so it takes up less space and eliminates the hassle of going into a darkroom, improving the work environment. effective. Furthermore, a viewing window is provided in a part of the developer box so that the user can work while looking into the inside of the developer box, so the work can be done without fumbling around, which has the effect of improving work efficiency. be. In addition, since multiple timers are provided to control the motors that drive the film progressive transport mechanism, the development time and fixing time can be set arbitrarily, and as a result, no matter what type of film or photographic paper It has the effect of being able to perform development and fixing processing.

Furthermore, we have adopted a timer that can control each processing time, so
This has the effect of lengthening the life of the developer and fixer.

In addition, the stop control of the elevating member of the film progressive transport mechanism when it is raised is not performed by normal means such as placing a limit switch in the area where oxidizing gas exists around the developing tank. The motor that drives the developer box is controlled by a timer so that the elevating member always stops at a fixed position at the top, so there is no chance that electrical components will be damaged by oxidizing gas that evaporates from the developer tank in the developer box. The effect is that there is no

Furthermore, the temperature of the developer and fixer can be set arbitrarily by controlling the developer heater installed at the bottom of the developing chamber and the fixer heater installed at the bottom of the fixing chamber, and the power to these heaters. Since the temperature control device is provided, the temperatures of the developing solution and the fixing solution can be arbitrarily adjusted independently, and as a result, optimum development and fixing processing can be performed.

[Brief explanation of the drawing]

The drawings relate to embodiments of the present invention, and FIG. 1 is an exploded perspective view of an automatic developing device, FIG. 2 is a perspective view showing the mutual relationship between the film progressive conveyance mechanism, the developing tank, the film hanger, and the film, and FIG. The figure shows the electric circuit diagram of the automatic developing device. FIG. 5 is a longitudinal sectional view showing the action of the film progressive conveyance mechanism. ■ is an automatic developing device, 2 is a developer box, 2a is inside, 3 is a developer tank, 3b, 3c, 3d are partitions, 4 is a film progressive conveyance mechanism, 5 is a motor, 6 is a timer, 8 is a film, 9
is a viewing window, 10 is a film hanger, 23 is a developing room, 25
is a fixing chamber, 26 is a developer, 28 is washing water, 29 is a fixer, 31 is a first washing chamber, 32 is a second washing chamber, 33 is a developer heater, 34 is a fixer heater, 38 is a cam plate, 38a is a valley part, 38b is a mountain part, 38c is a slope, 40 is a lifting member,
41 is a chain which is an example of a winding transmission member, 45 is a film advancing conveyance member, 45a is a first slope, 45b is a second slope, 45c is a third slope, 45d is a mountain portion, 65 is a development timer, and 66 is a water washer. The timer 68 is a fixing timer, 71 is a first rise timer, 72 is a second rise timer, 73 is a third rise timer, and 79 is a variable resistor which is an example of a temperature adjustment device.

Claims (1)

[Scope of Claims] 1. A developing box made of a light-shielding material, which blocks external light rays so that undeveloped film or photographic paper is not exposed to light, and has a viewing window in which the inside can be seen; A developing chamber in which a developing solution is stored; a first washing chamber provided adjacent to the developing chamber and containing washing water; a fixing chamber provided adjacent to the first washing chamber and containing a fixer; a second washing chamber provided adjacent to the fixing chamber and containing washing water; a developing tank housed in the developing box and divided into at least four parts; the developing chamber of the developing tank; the first washing chamber; a film step-by-step conveyance mechanism configured to step-by-step move a film hanger on which the film or photographic paper is suspended in order of the fixing chamber and the second washing chamber; and a motor for driving the film-step-by-step conveyance mechanism. the film or An automatic developing apparatus characterized in that the photographic paper is configured to be automatically advanced and conveyed from the developing chamber to the first washing chamber, the fixing chamber, and the second washing chamber in this order. 2. A developing box made of a light-shielding material that blocks external light rays so that undeveloped film or photographic paper is not exposed to light, and also has a viewing window that allows the inside to be seen, and a developing solution is housed therein. A developing chamber, a first washing chamber provided adjacent to the developing chamber and containing washing water, a fixing chamber provided adjacent to the first washing chamber and containing a fixing solution, and adjacent to the fixing chamber. a developing tank which is divided into at least four parts and which is housed in the developing box; The film hanger for suspending the film or photographic paper is formed in an uneven shape such that the central portion of each chamber of the developing tank in the traveling direction has a valley portion and the partition portion of each chamber has a peak portion. A pair of cam plates that slide down along the slope from the peak to the valley to support the film hanger in the valley, and a pair of cam plates arranged above and below at a predetermined interval on both left and right sides of the pair of cam plates. A first movable film hanger that is movably arranged and formed in a downward slope extending from the developing chamber to the first washing chamber, and that transports the film hanger located in the valley of the cam plate in the developing chamber to the first washing chamber.
a second slope formed similarly to the first slope and for transporting the film hanger located in the trough of the cam plate in the first washing chamber to the fixing chamber; and a third slope for transporting the film hanger in the fixing chamber to the second washing chamber, the peaks between the slopes being located on the rear side in the traveling direction of the film or photographic paper relative to the valleys of the cam plate. a pair of film progressive conveyance members configured to move the film or photographic paper up and down and sequentially advance and convey the film or photographic paper to each of the chambers; A movable elevating member having a predetermined weight, a pair of winding transmission members to which the elevating member is attached and travels in the vertical direction, a motor that drives the winding transmission members, and a motor that drives the motor to rotate and move. and a plurality of timers for controlling stop time, and by repeating rotation and stop of the motor, the film progressive conveyance member is moved up and down, and the film or photographic paper suspended by the film hanger is transferred to the developing chamber. An automatic developing apparatus characterized in that the developing apparatus is configured to automatically advance and convey the toner in the order of the first washing chamber, the fixing chamber, and the second washing chamber. 3. The plurality of timers include a development timer that sets the development time, a first rise timer that controls the rising time of the elevating member rising from the development chamber, a water washing timer that controls the first water washing time, and the first water washing timer that controls the first water washing time. 1. A second rising timer that controls the rising time of the elevating member rising from the washing chamber; a fixing timer that sets the fixing time; and a third rising timer that controls the rising time of the elevating member rising from the fixing chamber. An automatic developing device according to claim 1 or 2, characterized in that the automatic developing device comprises: 4. A developing box made of a light-shielding material that blocks external light rays so that undeveloped film or photographic paper is not exposed to light, and also has a viewing window that allows the interior to be seen, and a developing solution is housed therein. A developing chamber, a first washing chamber provided adjacent to the developing chamber and containing washing water, a fixing chamber provided adjacent to the first washing chamber and containing a fixing solution, and adjacent to the fixing chamber. a developing tank which is divided into at least four parts and accommodated in the developing box; a second washing chamber provided therein and containing washing water; 2. A film step-by-step transport mechanism configured to step-by-step move a film hanger on which undeveloped film or photographic paper is suspended in the order of the washing chamber; a motor for driving the film-step-by-step transport mechanism; and a motor for driving the film step-by-step transport mechanism. a developer heater provided at the bottom of the developing chamber, a fixer heater provided at the bottom of the fixing chamber, and power to these heaters; 1. An automatic film developing apparatus comprising: a temperature adjusting device which controls the temperatures of the developing solution and the fixing solution to arbitrarily set the temperatures of the developing solution and the fixing solution.