JP2571102B2 - Automatic developing equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic developing device for film or photographic paper, and particularly to an undeveloped film or photographic paper suspended by a film hanger without using a roller. In the bright room, the developing chamber in the developing tank, the first rinsing chamber, the fixing chamber, and the second rinsing chamber are transported step by step, and the same operation as the manual development is automatically performed, so that the film or printing is performed. The present invention relates to an automatic developing device capable of obtaining a beautiful developed film or photographic paper without any paper damage.

2. Description of the Related Art Conventionally, in order to develop an undeveloped film or photographic paper of a photograph, an operator has performed a development process while confirming an image with the naked eye in a thermostatic chamber installed in a dark room. According to such a manual development process, it is necessary to manage the development time and the temperature of the developing solution and the fixing solution by looking at the thermometer and relying on intuition, and it is not always necessary to perform the developing process in an optimal condition. However, there is a drawback that a person who is not accustomed cannot obtain a sufficient result. In addition, the dark room requires a considerable amount of space, and is dark and difficult to work. Particularly, when it is necessary to develop a photographed X-ray dental film each time as in a dentist, the development of the film is performed in the dark room. What you have to do in the workplace will significantly reduce your work efficiency,
Not preferred.

In order to eliminate the drawbacks of the manual development process in a dark room, a roller type automatic development device capable of performing the development process in a bright room has been proposed and put to 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 necessarily meanders, and the film conveyed in the rollers moves while being meandered by many rollers, and is repeatedly subjected to the bending action, so that the fill is easily damaged. was there. Further, there is a drawback that if the roller is dirty or the rotation of the roller is not smooth, uneven development occurs. Further, since the time required for the developing process and the fixing process must be the same, there is a disadvantage that the fixing process may not be possible depending on the film. Since the rollers are considerably contaminated by use, the rollers must be washed about once a week, which is troublesome and requires a lot of trouble.

Japanese Patent Publication No. 54-39738 discloses a photographic film processing apparatus. In this conventional example, an arm is moved up and down to move a cam surface of a first and a second holding portion by a film hanger and move step by step. Although it is common to the present invention in the point that it is carried out, it requires a cam, a shaft, a bearing, and a plurality of arms, in addition to the endless belt for conveyance, and four sets of vertical movement belts are used. Drive chain is also required,
It has a very complicated structure, is large and expensive, and cannot be miniaturized.It has no dark room function, so it cannot be used in a bright room, and can only be used in a dark room. Yes, the present invention is an invention having a different purpose, configuration, and effect.

Japanese Utility Model Publication No. 50-37807 discloses an automatic feeder. In this conventional example, a cam groove device fixedly provided on both sides of a processing tank and having a groove on an inner wall corresponding to each processing tank. The holding rod (hanger) is moved by a chain provided in each processing tank and an air cylinder, and the piston rod of the air cylinder is simply formed by using the vertical groove of the fixed cam groove device, the inclined cam surface and the cam plate. There is also an advantage in that the pedestal can be moved horizontally just by moving it up and down, but in this case, one air cylinder must be provided for each processing tank, which makes the structure complicated and expensive. In addition to this, it is not possible to reduce the size of the device as in the present invention, and it has no dark room function, so that it cannot be used in a bright room, and can only be used in a dark room. That There was a defect.

Japanese Patent Publication No. 47-23585 discloses a film hanger feeder in an automatic photographic film developing machine. In this conventional example, a film hanger is moved by a pair of elevating members provided on both sides of a processing tank. And a fixed cam plate provided thereabove.
Similar to the present invention, an intermediate elevating operation device is provided to move the film hanger up and down and at the same time as the film hanger is moved in a horizontal step. However, the structure of the elevating operation device is very complicated. This is disadvantageous in that two fixed cam plates are separately required, and since it does not have a dark room function, it cannot be used in a bright room, and can only be used in a dark room. Was.

JP-B-51-39861 discloses a protection circuit in a temperature controller for a heat fixing device of a copying machine.However, the conventional example merely discloses an electric circuit for temperature control.
It does not disclose the mechanical structure of the automatic developing device at all, and is a different invention completely different from the invention of the present application in the purpose, configuration, and operation and effect.

Purpose The present invention has been made to eliminate the above-mentioned drawbacks of the prior art, and has an object to block external light so that undeveloped film or photographic paper is not exposed to light and to reduce the internal light. A developing box made of a light-shielding raw material partially having a viewing window through which the developer can be visually recognized, a developing chamber for storing a developing solution, and a washing tank for storing cleaning water provided adjacent to the developing chamber And a fixing chamber provided adjacent to the first washing chamber and containing a fixing liquid, 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 film step-and-convey mechanism for moving a film hanger, on which an undeveloped film or photographic paper is suspended, step by step, in the order of a first washing room, a fixing room, and a second washing room; A film driving mechanism, and a plurality of timers for controlling the rotation and stop time of the motor, a film suspended by a film hanger by operating the film stepping transport mechanism by repeating the rotation and stop of the motor. Alternatively, the photographic paper is automatically advanced and transported in order from the developing chamber to the first rinsing chamber, the fixing chamber, and the second rinsing chamber, so that automatic development can be performed in exactly the same manner as in the case of manual development. To prevent damage during transport of the film or photographic paper by eliminating the use of one roller, and to eliminate the risk of uneven development, and to provide a beautifully developed film or The purpose is to make it possible to obtain a paper, and to make it easy for anyone to develop the film or photographic paper, so that skill in the development processing of the film or photographic paper is not required. The purpose is to dramatically improve the work efficiency of the film development processing. Another object of the present invention is to simplify the maintenance of the automatic developing apparatus by eliminating the need for cleaning the rollers. Another object is to eliminate the need to enter a dark room, to enable the development of film or photographic paper in a bright room, to save space, and to eliminate the hassle of entering a dark room, thereby improving the working environment. It is to plan. Still another object is to improve workability by providing a viewing window in a part of the developing box so that the user can work while looking into the inside of the developing box so that the work can be performed without groping. It is. Another object is to provide a plurality of timers for controlling a motor for driving a film step-and-convey mechanism, so that the developing time and the fixing time can be set arbitrarily, and thereby, any type of The purpose is to enable development and fixing processing even for a film. Still another object is to extend the life of the developing solution and the fixing solution by employing a timer capable of controlling each processing time.

Another object is to perform stop control at the time of elevating the elevating member of the film step-and-feed transport mechanism without using a normal means such as arranging a limit switch in an area where an oxidizing gas exists around the developing tank. The motor that drives the film advance transport mechanism is controlled by a timer to always stop the elevating member at the uppermost fixed position, and the oxidizing gas evaporating from the developing tank in the developing box completely damages the electric parts. There is no such thing. Still another object is to provide a developing solution heater provided at the bottom of the developing chamber, a fixing solution heater provided at the bottom of the fixing chamber, and control the power to these heaters to control the temperature of the developing solution and the fixing solution. By providing a temperature control device that can be set arbitrarily, the temperature of the developing solution and the temperature of the fixing solution can be arbitrarily adjusted independently of each other, thereby enabling optimal development and fixing processing. It is to be.

Configuration In short, the present invention (claim 1) is made of a light-shielding material that partially blocks a viewing window through which external light is blocked so that an undeveloped film or photographic paper is not exposed and that allows the inside to be viewed. A developing chamber, a developing chamber for storing a developing solution, a washing chamber for storing washing water provided adjacent to the developing chamber, and a fixing solution for storing the fixing solution provided adjacent to the first washing chamber. A developing tank housed in the developing box, divided into at least four sections into a fixing chamber and a second washing chamber provided adjacent to the fixing chamber and containing washing water; and a film or photographic paper of the developing tank. The film is fixedly provided on both left and right sides in the traveling direction, and is formed in an uneven shape such that the vicinity of the center in the traveling direction of each of the chambers of the developing tank becomes a valley and the vicinity of the partition of each of the chambers becomes a mountain. Or the film hanger that suspends the photographic paper A pair of cam plates which slide down along the slope toward the valley portion to support the film hanger at the valley portion, and are disposed vertically on the left and right sides of the pair of cam plates at predetermined intervals. A first slanted surface which is provided at the valley of the cam plate in the developing chamber and which is formed at a downward gradient from the developing chamber to the first rinsing chamber, and which conveys the film hanger to the first rinsing chamber; A second conveyor for transporting the film hanger, which is formed in the same manner as the first slope and is in the valley of the cam plate in the first washing chamber, to the fixing chamber.
A slope formed in the same manner as the first slope and a third slope for transporting the film hanger in the fixing chamber to the second washing chamber, wherein a peak between the slopes is smaller than a valley of the cam plate. A pair of film step transport members configured to be located on the rear side in the traveling direction of the film or photographic paper, so that the film or photographic paper is sequentially stepped and transported to each of the chambers while moving the film or photographic paper up and down, An elevating member that holds the film step transport member and that is movable in the up and down direction and has a predetermined weight, a pair of winding transmission members that are attached to a part of the elevating member and travel in the up and down direction, and the winding transmission A motor for driving the members, and a plurality of timers for controlling the rotation and stop time of the motor, the film stepping and conveying member is moved up and down by repeating the rotation and stop of the motor, and the film hanger is used. Wherein the suspended film or photographic paper is automatically advanced and conveyed in order from the developing chamber to the first rinsing chamber, the fixing chamber, and the second rinsing chamber. is there.

Further, the present invention (Claim 3) relates to a developing device which is made of a light-shielding material which has a viewing window which partially blocks an external light beam so that an undeveloped film or photographic paper is not exposed and which allows the inside to be visually recognized. A box, a developing chamber in which the developing solution is stored, a first rinsing room provided adjacent to the developing chamber and storing cleaning water, and a fixing device provided adjacent to the first rinsing room and storing the fixing solution. A second chamber provided adjacent to the fixing chamber and containing the cleaning water.
A developing tank which is divided at least into four parts by a washing chamber and is accommodated in the developing box; and a moving direction of the developing tank, which is fixedly provided on both left and right sides in a moving direction of a film or photographic paper in the developing tank. A film hang which is formed in an uneven shape such that the vicinity of the center of the valley becomes a valley and the vicinity of the partition of each chamber becomes a hill is a film hang for suspending the film or photographic paper on the slope from the hill to the valley. A pair of cam plates that slide down along the valley to support the film hanger; and a pair of cam plates are disposed on both left and right sides of the pair of cam plates so as to be movable up and down at a predetermined distance from the developing chamber. A first slope for forming the film hanger, which is formed in a downward gradient across the first washing chamber and is located at the valley of the cam plate in the developing chamber, for transporting the film hanger to the first washing chamber; and formed similarly to the first slope. The first water A second slope for transporting the film hanger in the valley of the cam plate in the chamber to the fixing chamber and a film hanger formed in the same manner as the first slope for transporting the film hanger in the fixing chamber to the second washing chamber. And a hill between the slopes is located rearward of the valley of the cam plate in the traveling direction of the film or photographic paper while moving the film or photographic paper up and down. A pair of film step-and-convey members adapted to be conveyed step by step to the respective chambers, an elevating member which holds the film-step convey member and is vertically movable and has a predetermined weight, and the elevating member A pair of winding transmission members attached to a part thereof and traveling in the vertical direction, and a motor for driving the winding transmission member,
Comprising a plurality of timers for controlling the rotation and stop time of the motor, and a developer heater provided at the bottom of the developing chamber, a fixing liquid heater provided at the bottom of the fixing chamber,
It is characterized by including a temperature control device that controls the power to these heaters so that the temperatures of the developer and the fixer can be arbitrarily set.

Hereinafter, the present invention will be described based on embodiments shown in the drawings. 1 to 4, an automatic developing apparatus 1 according to the present invention is shown.
Comprises a developing box 2, a developing tank 3, a film step-and-convey mechanism 4, a motor 5, and a plurality of timers 6.

The developing box 2 blocks an external light beam so that the undeveloped film 8 (this may be photographic paper, but will be described in the case of a film hereinafter) is not exposed, and furthermore, a viewing window 9 through which the inside 2a can be visually recognized. The viewing window 9 is provided in the center of the top plate 2f, is made of a special glass, and absorbs most of the light rays that make the film 8 sensitive. When the inside 2a of the developing box 2 is viewed through the viewing window 9, it looks dim and red, but the work of taking out the film 8 and attaching it to the film hanger 10 can be sufficiently performed. . An opening 2b is provided in the upper half of the front surface of the developing box 2, and a lid 11 is detachably attached to the opening, and the operator puts both arms 12 into the lid. A work hole 11a for working is provided, and a pair of backs 13 made of black cloth are attached to the work hole. Inside the developing box 2, a space 2 c is formed in a portion deep in the developing tank 3 for accommodating the case 14 of the undeveloped film 8 and taking out the film 8 from the case. . A bracket 15 is fixed to the front left side surface 2d of the developing box 2, and the bracket has a drain pipe 16 outside the tank, an overflow drain pipe 18 inside the tank, a developer supply / discharge pipe 19, a water supply pipe 20, and a fixing liquid supply. Each end of the discharge pipe 21
16a, 18a, 19a, 20a, and 21a are respectively inserted and gripped.

Referring also to FIG. 5, a drain pipe 16 outside the tank is provided in the space 2c of the developing box 2, an overflow drain pipe 18 in the tank is provided in a drain 3a provided at the bottom of the developing tank 3, and a developer supply / drain pipe is provided.
19 is a developing chamber 23, and a water supply pipe 20 is a first washing chamber 31 and a second
The fixing liquid supply / discharge pipe 21 is connected to the washing chamber 32 and the fixing chamber 25, respectively.

The developing tank 3 includes a developing chamber 23 in which the developing solution 26 is stored,
The first is provided adjacent to the developing chamber and contains the washing water 28.
A rinsing chamber 31 and a fixing solution 29 provided adjacent to the first rinsing chamber.
And a second washing chamber 32 provided adjacent to the fixing chamber and containing washing water, and is accommodated in the developing box 2 at least divided into four parts. Each of these rooms
Partitioning sections 3b, 3c and 3d are provided, and a developing liquid heater 33 and a fixing liquid heater 34 are provided only in the developing chamber 23 and the fixing chamber 25, respectively. An overflow pipe 35 whose upper end 35a is opened at the surface 28a of the washing water 28 is provided in the first washing chamber 31.
Is provided, and a lower end 35b of the overflow pipe is connected to the drainage reservoir 3a. The second flushing room 32 has an upper end 36
An overflow pipe 36 having an opening a at the surface 28a of the washing water 28 is provided, and a lower end 36b of the overflow pipe is similarly connected to the drain reservoir 3a.

In FIG. 2, the film step transport mechanism 4 moves the undeveloped film 8 step by step in the order of the developing chamber 23, the first rinsing chamber 31, the fixing chamber 25, and the second rinsing chamber 32 of the developing tank 3. In this way, a pair of cam plates 38, a pair of film advancing / transporting members 45, a lifting / lowering member 40, and a pair of winding transmission members 41 are configured as main parts.

A pair of cam plates 38 are fixedly provided on the left and right sides of the developing tank 3 in the film advancing direction. Near the center of each chamber of the developing tank in the advancing direction becomes a valley 38a, and the partition 3
The film hanger 10 for suspending the film 8 is formed in an uneven shape so that the vicinity of b, 3c, 3d becomes a peak 38b.
Downhill along the slope 38c from b to the valley 38a
In FIG. 1, the film hanger 10 is supported. Each cam plate 38 has four valleys 38a and three ridges 38b that function.

In FIG. 2, a pair of film advance transport members 45
The pair of cam plates 38 are disposed on the left and right sides of the pair of cam plates 38 at predetermined intervals so as to be vertically movable. The cam plates 38 are formed so as to extend downward from the developing chamber 23 to the first rinsing chamber 31 and are formed in the developing chamber 23.
A first slope 45a for transporting the film hanger 10 in the valley 38a to the first washing chamber 31 and a film hanger formed in the same manner as the first slope and in the valley 38a of the cam plate 38 in the first washing chamber 31. A second slope 45b for transporting the sheet 10 to the fixing chamber 25, and a film hanger 1 formed similarly to the first slope 45a and located in the fixing chamber 25.
0 to the second washing chamber 32, and a hill 45d between the slopes 45a, 45b, 45c is located rearward of the valley 38a of the cam plate 38 in the advancing direction of the film 8. The developing tank 3 is transported by moving the film 8 up and down sequentially to each chamber while moving the film 8 up and down. In FIG. 2, the elevating member 40 is a film
And a pair of the film advancing / conveying member 45, the film hanger 10 and the film 8 are lowered by their own weight at an appropriate speed against the rotational resistance of the motor 5 and the frictional resistance of each part. Both ends 40a are bent into a U-shape and slidably fitted to guide rods 48 fixed to a bracket 46 fixed to the developing box 3, The chain 41, which is an example of the winding transmission member, is fixed to a part of the rear side of the chain 41.

A spacer 49, which is loosely fitted to the guide rod 48, is disposed below the elevating member 40, and the lower part of the elevating member 40 is softly received between the spacer and the bracket 46 when the elevating member 40 is stopped. Compression spring 50 is wound.

The chain 41 has an upper drive sprocket so that the elevating member 40 is attached to a part thereof and travels vertically.
A pair of identical members are wound around endlessly around 51 and the driven sprocket 52 on the lower side. The driven sprocket 52 is rotatably mounted on a shaft 53 fixed to a bracket 46, and the driving sprocket 51 is connected to both ends 54 of a driving shaft 54.
Attached to a. The drive shaft 54 is connected to the top plate 2 of the developing box 2.
It is rotatably supported by a bearing box 55 fixed to f. The upper part of the bearing box 55 is open, and the oxidizing gas rising from the developing tank 3 leaks out from the upper part. Therefore, in order to prevent this, the lower part 56a of the cover plate 56 has a lower part 56a corresponding to the bearing box. When the sealing member 58 is stuck and the cover plate 56 is put on the developing box 2, the sealing member is in close contact with the upper surface 55 a of the bearing box 55, and an oxidizing gas is supplied to the electric component accommodating portion 2 e of the developing box 2. It is designed to never invade.

The motor 5 drives the chain 41, and a sprocket 61 is fixed to a rotating shaft (not shown) of the chain 5.
Another chain 60 is wound around the sprocket, and the chain is wound around a sprocket 63 fixed to the drive shaft 54.

1 and 3, timers 6 are used to control the rotation time and the stop time of the motor 5, and a total of six timers are provided in the illustrated embodiment. That is, the timer 6
Includes a developing timer 65 for setting a developing time, a first rising timer 71 for controlling a rising time of the lifting member 40 rising from the developing chamber 23, a washing timer 66 for controlling an initial washing time, and a first washing chamber. A second ascent timer 72 for controlling the ascent time of the elevating member 40 ascending from 31, and a fixing timer for setting the fixing time
68, and a third ascending timer 73 for controlling the ascending time of the elevating member 40 ascending from the fixing chamber 25. These are connected in series to a driving circuit 74 of the motor 5 as shown in FIG. ing. Further, heaters 33 and 34, a power switch 75, a power-on display lamp 76, a temperature display lamp 78, a variable resistor 79 as an example of a temperature controller for the developing solution 26 and the fixing solution 29, a developing display lamp 80, and a fixing display lamp 81, start switch
82 and a fuse 83 are connected to a power supply 84 as shown. These timers 6 are arranged in a horizontal state or a vertical state in the electric component accommodating portion 2 e of the developing box 2.
The rising timer 71, the flush timer 66, the second rising timer 72, and the third rising timer 73 are arranged in a vertical state, and the developing timer 65 and the fixing timer 68 are arranged in a horizontal state. On the operation panel 2g of the developing box 2, a temperature control knob 79a, a fuse 83, and a power-on indicator lamp 7 are arranged in order from the left in FIG.
6, a power switch 75, a development timer operation 65a, a fixing timer operation 68a, a temperature display lamp 78, a developing display lamp 80, a fixing display lamp 81 and a start switch 82 are arranged as shown in the figure.

The present invention is configured as described above, and its operation will be described below. In FIG. 1, the lid plate 56 is closed with respect to the developing box 2, and the lid 11 is attached so as to seal the opening 2b. As a result, the inside 2a of the developing box 2 becomes sufficiently dark, but the film 8 can be developed in a bright room. In other words, since the inside of the viewing window 9 receives such light that the inside of the viewing window 9 can be visually recognized, the work of attaching the film 8 to the film hanger 10 or the like can be easily performed by looking inside the viewing window.

Prior to the developing operation, the developer 26 is first injected from the developer supply / discharge pipe 19 into the developing chamber 23 so as to fill up to the heights of the upper ends 35a, 36a of the overflow pipes 35, 36 as shown in FIG. . Similarly, the fixing liquid drain pipe 21 is connected to the fixing chamber 25.
Is injected with the fixing solution 29. Then, similarly, the washing water 28 is injected into the first washing room 31 and the second washing room 32 by the water supply pipe 20. The washing water 28 is about 4 in the case of pool washing.
May be once injected into the first flushing chamber 31 and the second flushing chamber 32, respectively. However, in the case of running water flushing, the water supply pipe 20 is connected to a faucet (not shown) through a pressure reducing valve (not shown). The washing water 28 is continuously injected by connecting, overflows from the overflow pipes 35 and 36, and is once collected in the sump 3a, and then drained to the outside from the overflow drain pipe 18.

As described above, when the preparation for the development is completed, the power switch 75 on the operation panel 2g is turned on. This turns on the power indicator lamp 76, energizes the heaters 33 and 34 from the power source 84, and keeps energizing until the temperature of the temperature adjustment device, that is, the temperature set in advance by 79a, is reached.
When the temperatures of the fixing solution 26 and the fixing solution 29 reach a predetermined temperature, for example, 28 ° C., the temperature display lamp 78 is turned on to indicate that the developing and fixing processes are possible. After that, the temperatures of the developer 26 and the fixer 29 are adjusted by, for example,
Kept at ° C.

Then, the lid 11 is once removed as shown in FIG. 1, and the undeveloped film 8 (for example, the size of the film may be domestic (including children), pantomo, oil monkey, six-cut, etc., or various prints may be viewed). Case 14 to prevent exposure
The inserted film is put into the space 2c located at the innermost position of the developing box 2 as shown by the arrow A, and the lid 11 is attached to the developing box 2 as shown by the arrow B. Then, the user puts both hands 12 into the developing box 2 from the entrance 13a of the back 13, opens the lid of the case 14 containing the film 8, takes out the film, and removes the film 8 with the pair of clips 10 a attached to the film hanger 10. The film is attached to the film hanger 10 and suspended from both ends. First, the film 8 is put into the developing chamber 23 filled with the developing solution 26. In this case, the film hanger 10 is placed in and supported by the valleys 38a in the developing chamber 23 of the pair of cam plates 38, and the film 8 is suspended at the center of the developing chamber 23 in the traveling direction of the film 8 for developing. It will be immersed in the liquid 26.

Then, pull out both hands 12 from the back 13 and turn on the start switch 82 on the operation panel 2g.
Lights up. In this case, since the rubber 13b is contained in the entrance 13a of the back 13 of the hand, the both hands 12 are extracted and contracted and closed. Therefore, there is no fear that light enters the developing box 2 from here.
This completes the manual operation, and the automatic developing device 1 automatically performs the development, first water washing, fixing and last water washing. Hereinafter, the automatic developing operation will be described step by step.

When the start switch 82 is turned on, the developing timer 65 is energized from the power supply 84 as shown in FIG. 3, and the timer starts measuring the developing time. During this time, the power supply to the motor 5 is stopped, and the pair of film advance / convey members 45 is lowered by the weight of the elevating member 40 and stopped at the lowest point. Is developed.

When the developing timer 65 completes the measurement of the predetermined developing time, the developing lamp 80 turns off and the motor 5
And the motor rotates, and the chain 41 rotates clockwise in FIG. 2 via the sprocket 61, the chain 60, the sprocket 63, the drive shaft 54, and the pair of sprockets 51,
The elevating member 40 starts to ascend. As a result, the first ascent timer 71 starts counting time, and the
45, the film hanger 10 is lifted from the developing chamber 23 as shown by an arrow C in FIG. 4. During the lifting, the film hanger 10 moves on the first slope 45a of the film step-and-convey member 45 as indicated by an arrow D. It descends as described above and comes into contact with the mountain part 45d and stops. As a result, the film hanger 10 automatically advances one step in the middle of the ascent. Then, the lower end of the film 8 automatically comes out of the developing chamber 23, and
It reaches the center of the washing room 31.

When the film advance / conveyance member 45 reaches the top dead center, the first rising timer 71 completes the time measurement, the power supply to the motor 5 is stopped, the chain 41 stops, and the film advance / conveyance member 45 moves upward. Stop at dead center.

Then, immediately by the own weight of the elevating member 40, the film advancing / conveying member 45 and the film hanger 10 start to descend at an appropriate speed as shown by an arrow E in FIG. That is, the lifting member 40
Is lowered, the chain 41 rotates counterclockwise in the figure,
This causes the motor 5 to rotate, and the motor acts as a generator to perform a braking action, thereby reducing the descending speed of the lifting member 40. When the elevating member 40 comes into contact with the spacer 49, the compression spring 50 bends to reduce the impact at the time of stopping at the bottom dead center, so that the elevating member 40, the film step-and-convey member 45, and the film hanger 10 stop quietly. The film hanger is supported by the valleys 38a of the cam plate 38 in the first washing room 31, and the film 8 is immersed in the washing water 28 of the first washing room 31, and the first washing is started.

Here, when the film hanger 10 is transferred from the first slope 45a of the film step-and-convey member 45 to the slope 38c of the cam plate 38, the film hanger 10 is placed in the middle of the slope. As shown by an arrow F in the figure, the vehicle slides down along the inclined surface and stops only after reaching the valley portion 38a. As a result, the film hanger 10 goes over one crest portion 45d while the film advancing / conveying member 45 is stopped at its bottom dead center, and when the film hanger 10 rises next, it has already moved to the second slope 45b.
You are ready to go down.

Further, the flushing timer 66 starts counting time at the same time when the power supply to the motor 5 is stopped by the first rising timer 71. When a predetermined flushing time elapses, the flushing timer 66 completes the time measurement and supplies power to the motor 5. Is started.

Immediately thereafter, the second ascent timer 72 starts counting time, and the rotation of the motor 5 causes the chain 41 to rotate clockwise in FIG. 2 so that the elevating member 40 and the film step-and-convey member 45 move as indicated by the arrow G in FIG. During this ascent, the film hanger 10 slides down on the second inclined surface 45b of the film advancing / conveying member 45 as shown by the arrow H, comes into contact with the peak 45d and stops. When the predetermined time has elapsed, the second ascending timer 72 completes the time measurement, whereby the motor 5 stops and the film hanger is stopped.
The film 8 suspended by 10 reaches the position of the fixing room 25 and is ready to enter the fixing room.

When the motor 5 is stopped, the film advance / conveyance member 45 is moved by the arrow I in FIG.
And the film hanger 10 is lowered to the fixing chamber 25 of the cam plate 38.
Is placed on the inclined surface 38c, and slides down on the inclined surface as shown by the arrow J to reach the valley 38a and stops there. The film 8 is supported by the fixing liquid in the fixing chamber 25. 29
Immersed in

When the motor 5 stops, the fixing timer 68 starts counting and the fixing indicating lamp 81 is lit. When a predetermined fixing time has elapsed, the fixing timer completes the counting and the power supply to the motor 5 is started again. You. Thus, the fixing process is completed, the motor 5 starts rotating, and the film 8 is raised by the film hanger 10 as shown by the arrow K.

At the same time as the energization of the motor 5 is started, the third ascending timer 73 starts counting time, and when the film advancing member 45 starts to ascend, the film hanger 10 is already in the third position of the film advancing member 45. The film hanger 10 slides down on the third slope 45c of the film-stepping and conveying member as shown by the arrow L during ascending, since the film hanger 10 advances one step again over the peak 45d of the third slope 45c. Stops, and the film 8 reaches the position of the second washing chamber 32.

When the counting of the third ascent timer 73 is completed, the power supply to the motor 5 is stopped and the motor 5 is stopped, and immediately, the film step-and-convey member 45 is lowered by the weight of the elevating member 40 as shown by the arrow M. The washing room 32 is entered and the last washing process is performed. At the time of this last rinsing process, the operations of all the timers have been completed, so that the time of this rinsing process is appropriate, and the operator is required to carry out the developed film together with the film hanger 10 after the elapse of an appropriate time. In this case, first remove the lid 11 from the developing box 2 to remove the film hanger.
10 is taken out of the second washing room 32.

After the first development and fixing processes are completed in this manner, the next film 8 is similarly put into the developing chamber 23, the lid 11 is closed, and the start switch 82 is turned on. Since the automatic developing device 1 performs all the processing automatically, no manual work is required thereafter.

As described above, according to the present invention, the film 8 can be moved from the developing chamber 23 to the first rinsing chamber 31, the fixing chamber 25 and the developing chamber 23 without using a roller as in a conventional roller-type automatic developing apparatus (not shown). (2) It can be transported to the rinsing chamber 32 just as if it were developed by hand, just like in the case where development processing is performed manually.
The development processing of the film 8 can be carried out very smoothly without causing damage to the film 8 and without causing uneven development. In the illustrated embodiment,
From development to fixing and washing can be completed in 90 seconds.

In addition, the film 8 can be developed in the same manner from a dentist's X-ray dental film as well as a film of 35 mm, Broni or the like photographed by a normal camera. Further, photographic paper can be similarly used. If the film transport mechanism 4 breaks down, the developing, washing and fixing processes can be performed manually in a bright room.

Advantageous Effects of the Invention As described above, the present invention is directed to a developing device which is made of a light-shielding raw material having a viewing window that partially blocks an external light beam so that the undeveloped film or photographic paper is not exposed and that allows the inside to be viewed. A box, a developing chamber in which the developing solution is stored, a first rinsing room provided adjacent to the developing chamber and storing cleaning water, and a fixing device provided adjacent to the first rinsing room and storing the fixing solution. A developing tank housed in a developing box divided into at least four sections into a chamber and a second washing chamber provided adjacent to the fixing chamber and containing washing water; a developing chamber of the developing tank; a first washing chamber; A film step-and-convey mechanism for moving a film hanger on which a film or photographic paper is suspended in a step of a fixing chamber and a second washing chamber, and a motor for driving the film step-and-convey mechanism; Multiple timers to control motor rotation and stop time A film or photographic paper suspended by a film hanger is automatically operated in order from a developing chamber to a first rinsing chamber, a fixing chamber, and a second rinsing chamber by operating a film step-and-convey mechanism by repeating rotation and stop of a motor. Since it is configured to be transported in a stepwise manner, automatic development can be performed in exactly the same way as in the case of manual development, and it is not necessary to use one roller to transport the film or photographic paper, so that the film It is possible to prevent damage during transportation, eliminate the possibility of uneven development, and obtain a beautifully developed film or photographic paper, so that anyone can easily develop the film or photographic paper. This eliminates the need for training in film or photographic paper development, and dramatically improves the efficiency of X-ray film development in dentists and the like. Effect can be obtained. Further, since the cleaning operation of the roller can be omitted, there is an effect that the maintenance and management of the automatic developing device can be facilitated. In addition, since there is no need to enter a dark room, and the film or photographic paper can be developed in a bright room, a small space can be used, and the trouble of entering the dark room can be eliminated, and the working environment can be improved. effective. Further, since a viewing window is provided in a part of the developing box so that the user can work while looking into the inside of the developing box, the work can be performed without groping, so that the effect of improving workability can be achieved. is there. In addition, since a plurality of timers are provided to control the motor that drives the film step transport mechanism,
There is an effect that the developing time and the fixing time can be arbitrarily set,
As a result, there is an effect that development and fixing can be performed with any type of film or photographic paper. Further, since a timer capable of controlling each processing time is employed, there is an effect that the life of the developing solution and the fixing solution can be extended.

Further, the stop control of the raising / lowering member of the film stepping transport mechanism at the time of ascending is not performed by a normal means such as arranging a limit switch in an area where the oxidizing gas exists around the developing tank, and the film stepping transport mechanism The motor that drives the motor is controlled by a timer so that the elevating member is always stopped at the uppermost fixed position, so that the oxidizing gas evaporating from the developing tank in the developing box can completely damage the electric parts. There is no effect.

Further, a developer heater provided at the bottom of the developing chamber, a fixer heater provided at the bottom of the fixing chamber, and the power to these heaters can be controlled to arbitrarily set the temperature of the developer and the fixing solution. Since the temperature control device is provided, the temperatures of the developing solution and the fixing solution can be independently and arbitrarily adjusted, and as a result, it is possible to carry out optimal development and fixing processing.

[Brief description of the drawings]

1 is an exploded perspective view of an automatic developing device, FIG. 2 is a perspective view showing the interrelationship between a film step-and-convey mechanism, a developing tank, a film hanger and a film, FIG. FIG. 4 is an electric circuit diagram of the automatic developing device. FIG. 4 is a longitudinal sectional view showing a state in which an operator takes out an undeveloped film from a case and puts it into a developing chamber while looking into the inside of the developing box through a viewing window. FIG. 5 is a longitudinal sectional view showing the operation of the film step-and-convey mechanism. 1 is an automatic developing device, 2 is a developing box, 2a is an inside, 3 is a developing tank, 3b, 3c, 3d are partition parts, 4 is a film step-and-convey 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 room, 26 is a developing solution, 28 is washing water, 29 is a fixing solution, 31 is a first washing room, 32 is a second washing room, 33 is a developing solution heater, 34 is a fixer heater, 38
Is a cam plate, 38a is a valley, 38b is a peak, 38c is a slope, 40 is an elevating member, 41 is a chain as an example of a winding transmission member, 45 is a film step-and-convey member, 45a is a first slope, 45b is The second slope,
45c is a third slope, 45d is a peak, 65 is a development timer, 66 is a flush 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 temperature. It is a variable resistor which is an example of an adjusting device.

Claims (3)

(57) [Claims] 1. A developing box which is made of a light-shielding material and has a viewing window which partially blocks an external light beam so that an undeveloped film or photographic paper is not exposed and which allows the inside to be visually recognized, and a developing solution. , A washing chamber provided adjacent to the developing chamber and containing washing water, a fixing chamber provided adjacent to the first washing chamber and containing fixing solution, and the fixing chamber. A developing tank, which is divided into at least four sections and a second washing chamber in which washing water is stored and which is housed in the developing box, and which is fixed to the left and right sides of the developing tank in the traveling direction of the film or photographic paper. The developing tank is formed in an irregular shape such that the vicinity of the center of each chamber of the developing tank in the traveling direction becomes a valley and the vicinity of a partition of each chamber becomes a mountain, and the film or photographic paper is suspended. A film hanger runs along the slope from the peak to the valley. A pair of cam plates adapted to slide down to support the film hanger in the valleys, and arranged vertically at predetermined intervals on both left and right sides of the pair of cam plates, and A first slope for forming the film hanger in the valley portion of the cam plate in the developing chamber, the first slope being formed so as to extend to the first washing chamber, and the first slope being formed in the same manner as the first slope; A second slope for transporting the film hanger in the valley of the cam plate in the first washing chamber to the fixing chamber, and the film hanger formed in the same manner as the first slope and in the fixing chamber, for the second washing. And a third slope for transporting the film or photographic paper to the chamber. The hill between the slopes is positioned rearward of the valley of the cam plate in the traveling direction of the film or photographic paper. Move each of the above A pair of film stepping conveying member which is adapted to successively incremented conveys to,
An elevating member that holds the film step transport member and is movable in the up and down direction and has a predetermined weight, and a pair of winding transmission members that are attached to a part thereof and travel in the up and down direction,
A motor for driving the winding transmission member, and a plurality of timers for controlling the rotation and stop time of the motor, the film step transport member is moved up and down by repeating the rotation and stop of the motor. The film or photographic paper suspended by a film hanger is automatically advanced and conveyed from the developing chamber to the first washing chamber, the fixing chamber, and the second washing chamber in this order. Automatic developing device. 2. A timer for setting a developing time, a first rising timer for controlling a rising time of the elevating member rising from the developing chamber, and a flush timer for controlling an initial flushing time. And a second rising timer for controlling a rising time of the lifting member rising from the first washing chamber;
2. The automatic developing apparatus according to claim 1, further comprising a fixing timer for setting a fixing time, and a third rising timer for controlling a rising time of the lifting member rising from the fixing chamber. 3. A developing box, which is made of a light-shielding material and has a viewing window that partially blocks an external light beam so that the undeveloped film or photographic paper is not exposed and that allows the inside to be viewed, A developing chamber to be accommodated, a first rinsing chamber provided adjacent to the developing chamber and containing washing water, a fixing chamber provided adjacent to the first rinsing chamber and containing fixing liquid, and a A developing tank which is divided into at least four parts and a second washing chamber which is provided adjacent to the washing water and is accommodated in the developing box;
The developing tank is fixedly provided on the left and right sides in the traveling direction of the film or photographic paper, and the vicinity of the center of each chamber of the developing tank in the traveling direction is a valley and the vicinity of a partition of each chamber is a peak. A pair of film hangers, which are formed in such an uneven shape and suspend the film or photographic paper, slide down along a slope from the ridge to the valley to support the film hanger in the valley. A cam plate; and a pair of cam plates, which are disposed on the right and left sides of the pair of cam plates so as to be movable up and down at predetermined intervals, and are formed so as to extend downward from the developing chamber to the first washing chamber, and the cam plate in the developing chamber is formed. A first slope for transporting the film hanger in the valley portion to the first flushing chamber and the film hanger in the valley portion of the cam plate in the first flushing chamber formed in the same manner as the first slope. The fixing room A second slope to be conveyed and a third slope formed in the same manner as the first slope to convey the film hanger in the fixing chamber to the second washing chamber; A pair of film steps configured so as to be located rearward in the traveling direction of the film or photographic paper from the valley portion and configured to sequentially advance and convey the film or photographic paper to each of the chambers while moving the film or photographic paper up and down. A conveying member, an elevating member that holds the film advance conveying member and that is movable in the up and down direction and has a predetermined weight, and a pair of winding transmission members that move in the up and down direction with the elevating member attached to a part thereof, A motor for driving the winding transmission member, a plurality of timers for controlling rotation and stop time of the motor, and a developer heater provided at the bottom of the developing chamber; and a developer heater provided at the bottom of the fixing chamber. To the fixed fixer heater Automatic developing apparatus of the film, characterized in that a temperature control device can be arbitrarily set the temperature of the developing solution and the fixing solution to control the force.