JPH02264251A - Film processor - Google Patents

Abstract

PURPOSE:To prevent the corrosion of parts by gas and the adverse influence of the film by moisture by providing openable/closable apertures on a top plate provided above a developing unit. CONSTITUTION:The two apertures 7 are provided on the front side of the top plate 6 and caps 8 are provided in these apertures 7. The caps 8 are provided on the immediate lower side of the top plate 6 and are used to escape the highly corrosive gases, such as gaseous sulfurous acid and gaseous acetic acid generated from the automatic developing unit 9 provided on the immediate lower side of the top plate 6. The caps can be opened by hand after the processing. Since such corrosive gases are liable to ascend, the gases are easily escaped by previously providing such caps 8 to the top plate 6. The corrosive gases and moisture generated from the developing unit 9 are discharged by the simple method in this way while the consumption of electric power is minimized.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a film processing apparatus that automatically develops photographed X-ray film stored in a cassette.

(Prior Art) Conventionally, X-ray film taken in hospitals and the like is transported in a flat container called a cassette, and is loaded into a film processing device and subjected to development processing. In the film processing device, the photographed film is removed from the cassette and then passed through an automatic development unit to be developed.

The automatic developing unit is equipped with a developing tank, a fixing tank, a rinsing tank, and a drying tank. The photographed film taken out from the cassette is conveyed by a transport roller and passed through the developing tank, the fixing tank, and the rinsing tank in sequence. Finally, it is dried in a drying tank and taken out as a negative film.

By the way, the developing solution in the developing tank of the automatic developing unit and the fixing solution in the fixing tank must be used in order to perform optimal development processing.
Since the temperature is maintained at about 5°C and the temperature of the drying tank is about 50°C, the temperature inside the apparatus is high and the liquid easily evaporates, and gas and water vapor are constantly generated.

Corrosive gases such as sulfur dioxide and acetic acid gas are generated by the evaporation of the developer and fixer, and water vapor is generated from the washing tank, but since the equipment itself is sealed, gases and water vapor are released into various parts inside the equipment. These gases can cause components to rust or corrode due to prolonged exposure to these gases. There is also the risk that the humidity inside the device will increase, which may have an adverse effect on the film.

Therefore, conventional methods have been considered in which an exhaust fan is installed inside the equipment and the exhaust fan creates an air flow to remove corrosive gases and moisture to the outside. However, this method is not suitable for facilities where the power is turned off at night. When the system stops, the gas and water vapor generated inside the device are not discharged to the outside and are trapped inside the device, so when the day's operation is finished, the top plate at the top of the device is removed and the gas and water vapor generated inside the device are trapped inside the developing unit. A method is used to release gas and water vapor into the atmosphere, but it is difficult to remove the large and heavy top plate and reinstall it the next day. Furthermore, even in facilities that have daytime and nighttime power supply, nighttime power consumption is by no means small.

(Objects and Structure of the Invention) The present invention has been made in view of the above points, and an object of the present invention is to exhaust corrosive gas and moisture generated from a developing unit in a simple manner while minimizing power consumption. ,
In order to achieve this purpose, a top plate provided above the developing unit is provided with an opening that can be opened and closed.

(Example) The present invention will be explained below based on the drawings.

FIG. 1 shows the appearance of a film processing apparatus according to the present invention, which includes an automatic developing machine. The device is provided with a name card holder 1 in which a name card showing the name of the subject to be imprinted on the film is placed at the top of the left half when facing the front, and an operating section 2 arranged side by side on the right side of the name card holder 1. ing. The operation unit 2 includes a power switch and other
There are a knob for setting the development density, a button for selecting the size of unshot film to be supplied to the cassette, a lamp to show the progress of processing and warnings, and a counter to show the number of sheets of film used.

Next, at a position slightly above the center of the left half of the front side of the apparatus, there is provided a cassette insertion opening 3 for loading a cassette containing photographed film into the apparatus.

Below the center of the left half of the device is a supply magazine (not shown) that separately stores unshot film to be supplied to the cassettes by size (seven sizes in the figure).
Insertion ports 4a, 4b, . . . 4g are provided for loading.

On the other hand, an auto feeder 5 is provided at a slightly recessed position in the upper right half of the device, and in front of it is provided a sheave magazine insertion slot 5a, in which a receive magazine containing several sheets of already shot film is provided. When a magazine (not shown) is inserted, the photographed film in the receive magazine is automatically taken out by a plurality of internally provided conveyance rollers and conveyed to the automatic developing unit.

The auto feeder 5 is installed on a top plate 6, and the top plate 6 can be pulled out forward (toward this side) by a rail 6a and a roller 6b that moves on the rail 6a, as shown in cross section in FIG. It looks like this. As shown in Figure 2, the top plate 6 is located relatively close to the front inside the device.
A pin 6c is provided to prevent it from coming off toward the front. In addition, the front surface of the top plate (the left end in Figure 2) is thickened and rolled downwards, and a lock lever 6e is provided on the bottom surface of this rolled-up portion 6d. In this state, the top plate 6 is locked to the main body of the apparatus and cannot be pulled out, but if you put your hand on this lock lever 6e and pull it forward, you can easily pull it out together with the auto feeder 5 still on it.

Two opening lowers are provided on the front side of the top plate 6, and a lid 8 is provided on these opening lowers as shown in FIG. As will be described later, this lid 8 is for releasing highly corrosive gases such as sulfur dioxide gas and acetic acid gas generated from the automatic developing unit installed immediately below the top plate 6 to the outside. After work, it can be opened by hand. Since such corrosive gas easily rises, a lid 8 like this is installed on the top plate 6.
It will be easier to escape if you set it up. Incidentally, in this part of the top plate 6 where the lid 8 is provided, a cassette and other items necessary for the work can be placed, and it can be used as a suitable workbench.

As shown in FIG. 2, the automatic developing unit 9 is arranged just below the top plate 6, and includes a developing tank 9a, a fixing tank 9b, a washing tank 9C, and a drying tank 9d, which are arranged side by side. A rack 9e for supporting conveyance rollers and the like is removably inserted.

Slightly below the center of the right half of the device is a film basket 10 for receiving the film developed by the internal automatic development unit 9.The film accumulated in this film basket 10 is removed from its upper opening. It is designed to be taken outside.

With the film processing apparatus configured as described above, when cleaning the transport roller rack 9e of the automatic developing unit 9, place your hand on the lock lever 6e and move the top plate 6 toward you (the side where the operator stands). When pulled out, the automatic developing unit 9
Since a free space is created above the rack 9e, the rack 9e with the transport rollers can be easily pulled up from there. Rack 9e is used for development after being washed elsewhere.

It can be inserted into each of the fixing and washing tanks 9d, 9b, 9c, and 9d.

In the above embodiment, the top plate 6 is pulled out to the front, but depending on the installation location of the film processing device, it may be better to slide it horizontally. It may also be of the type that can be opened diagonally or vertically upward like a lid using a hinge.

(Effects of the Invention) As explained above, in the present invention, a top plate provided above the developing unit of a film processing apparatus having a developing unit for developing photographed film taken out from a cassette is provided with a top plate that can be opened and closed. Since the opening is provided, corrosive gases and water vapor inside the device can be released to the outside much more easily than before by simply opening this opening as needed, which prevents corrosion of parts due to gas and film due to moisture. can prevent the negative effects of

[Brief explanation of drawings]

FIG. 1 is a perspective view of an embodiment of a film processing apparatus according to the present invention, and FIG. 2 is a sectional view of all essential parts along the line A-ApJr in FIG. 1.

Claims (1)

[Claims] 1. A film processing apparatus having a developing unit for developing photographed film taken out from a cassette, characterized in that a top plate provided above the developing unit has an opening that can be opened and closed.