JPH04155333A - Processing tank for developing device - Google Patents

Abstract

PURPOSE:To obtain a processing tank for use in a developing device which is of simple construction and in which the levels of weirs for cascades can be easily adjusted by forming notches to partition walls of respective processing baths, and fixing the weirs bodies to the notches while the heights of the weirs are adjusted. CONSTITUTION:Weir bodies 32 are bonded and fixed to rectangular notches 36 formed by varying their depths preliminarily, at optional mounting heights. When a photosensitive material is developed, washing water supplied to a fourth washing thank body 24 overflows and flows into a third washing tank body 22 through a V-shaped notch part 32C at the weir body 32 of a rear wall 22B, and the washing water in the body 22 flows into a second washing tank body 18 through a notch part 32C attached to a rear wall 18B. Further, the washing water in the body 18 reaches a first washing tank body 16 through a notch part 32C attached to a rear wall 16B, and is then discharged together with bleaching fixing solution brought into the body 16.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a processing tank used in a developing device for photosensitive materials, and in particular to a developing device that takes into consideration the possibility of cascading a processing solution between processing tanks. Regarding processing tanks.

[Conventional technology]

A processing tank for developing a photosensitive material is provided with a plurality of processing tanks, and the photosensitive material is sequentially conveyed from the developer tank to a bleach-fix tank and a washing tank. Among these treatment tanks, a plurality of washing tanks are provided, and the washing water supplied to the downstream washing tank is sequentially sent to the upstream washing tank by overflowing in a cascade. ing. As a result, even though a small amount of washing water is used, the photosensitive material can be washed effectively.
The final rinsing process is performed using the least contaminated rinsing water.

However, in this cascade of processing tanks, each processing tank is connected by a pipe, and the washing water on the downstream side is guided to the washing tank on the upstream side through this pipe.

When this cascade is provided over a plurality of tanks, the cascade on the upstream side must be located at a lower position than the cascade on the downstream side, and the installation of this pipe must be adjusted.

[Problem to be solved by the invention]

In consideration of the above-mentioned facts, the present invention aims to provide a processing tank for a developing device which has a simple structure and allows easy level adjustment of the cascade weir.

[Means to solve the problem]

The present invention relates to a processing tank in which a plurality of processing tanks are formed for developing photosensitive materials, and a notch formed in a partition wall of the plurality of processing tanks and a cascade weir are formed to extend vertically into the notch. The weir body is characterized by having a weir body dimensioned to be movable in the height direction, and means for fixing the weir body to the notch.

Therefore, in the present invention, a notch is formed in the partition wall of each treatment tank,
A cascade structure can be easily obtained by simply fixing the weir body to this notch with a fixing means such as an adhesive while adjusting the height of the weir body.

[Embodiments of the invention]

FIG. 1 shows a processing tank to which the present invention is applied.

This processing tank includes a developing tank main body I2, a bleach-fixing tank main body 14, a first washing tank main body 16, a second washing tank main body 18, a third washing tank main body 22, and a fourth washing tank main body 2.
4, and each tank body is box-shaped with an open top end.

Further, although the developing tank body 12 and the bleach-fixing tank body 14 are formed to have a larger depth than the other tank bodies, the planar shape of each tank body is the same.

Each of these tank bodies is filled with a processing liquid such as a developer, and is circulated and temperature-controlled as necessary. Further, transport racks (not shown) are housed in these tank bodies, and the photosensitive material is sandwiched and transported and is sequentially transported from the developing tank main body 12 to the fourth washing tank main body 24 while being immersed.

The rear wall 12B of the developing tank main body 12 and the front wall 14A of the bleach-fixing tank main body 14 are closely attached to each other and fixed by adhesive means (not shown). Similarly, the rear wall 14B of the bleach-fixing tank body 14 and the front wall 1 of the first washing tank body 16
6A is fixed to each other. Furthermore, the rear wall 16B of the first flush tank body 16 and the front wall 1 of the second flush tank body 18
8A is after the second water washing tank body 18 = 18B and the third
The front wall 22A of the washing tank main body 22, the rear wall 22B of the third washing tank main body 22, and the front wall 24A of the fourth washing tank main body 24 are adhered to each other to form partitions between the processing tanks.

Here, trapezoidal notches 28 are formed at the upper ends of the front walls 18A, 2OA, and 22A, and the two front walls and rear walls are bonded to each other with the rear wall 18B and 122B protruding above these notches 28. has been done. These notches 28 are located in the rear wall 16B, 1
It has the role of making it easier to attach the weir body 32 to 8B and 22B, and also makes it easier to fill the adhesive between the periphery of the notch 28 and the rear surface of the rear wall 16B, 18B, 22B protruding from the notch 28. This ensures that the front and rear walls of the sheet are in close contact with each other.

As shown in FIGS. 2 to 5, the weir body 32 has a flat plate portion 32.
A notch is formed at the upper center of A.

The side surfaces of this notch are parallel and perpendicular to each other.
The bottom has a 7-shaped V-shaped notch 32C facing downward.
It becomes. Parallel notch 32B as shown in FIG.
are formed by opposing sides of ribs 32D extending perpendicularly from the flat plate portion 32A. The outer diameter W1 of these ribs 32D is equal to the width dimension of the rectangular notches 36 formed in the rear walls 16B, 18B, and 22B, so that the weir body 32 and the rectangular notches 36 can be adjusted to any desired height. It can be placed. Further, the wall thickness W2 of the flat plate portion 32A is equal to the wall thickness of each tank body, and the rib 3 including this flat plate portion 32
The wall thickness W3 of 2D is twice the wall thickness of the tank body. Therefore, when viewed from above, the weir body 32 does not protrude from the two overlapping side walls of the tank body.

The rectangular notches 36 are formed with increasing depths in the order of the rear walls 22B, 18B, and 16B, and the mounting height of the weir body 32 is also arranged such that it gradually becomes lower toward the upstream side in the conveyance direction of the photosensitive material. The size of the flat plate portion 32A is determined so as to close the portion of the rectangular notch 36 below the V-shaped notch 32C, no matter what height of the rectangular notch 36 the weir body 32 is placed at.

The V-shaped notch 32C has a 7-shape when viewed from the upstream and downstream sides in the photosensitive material conveyance direction as shown in FIGS. 2 and 4, but as shown in FIG. When viewed from a direction perpendicular to the horizontal direction, the height increases toward the upstream side in the conveyance direction. For this reason, the downstream part of the cascade is the bottom of the V-shaped groove of the V-shaped notch 32C,
This inclination also makes the cascade drain well.

In this embodiment configured as described above, the weir main body 32 is installed at an arbitrary installation height in the rectangular notch 36 formed with different feeding depths, that is, the weir body 32 is installed in the order of 20B, rear wall 18B, and rear wall 16B. The weir structure can be easily formed by lowering the installation height of the main body 32 and fixing it with adhesive.

When developing a photosensitive material, the washing water supplied to the fourth washing tank main body 24 overflows and flows into the third washing tank main body 22 through the V-shaped notch 32C in the weir main body 32 of the rear wall 22B, Furthermore, this third water washing tank main body 2
The flush water in the second flush tank body 18 passes through the V-shaped notch 32C of the weir body 32 attached to the rear wall 18B.

Furthermore, the washing water in the second washing tank main body 18 is connected to the rear wall 16B.
It passes through the V-shaped notch 32C attached to the first washing tank body 16, and is discharged together with the bleach-fixing solution brought into the first washing tank main body 16.

Although the above embodiment shows a structure in which the weir body 32 is fixed to the partition wall of the processing tank with an adhesive, other mounting structures such as a fastener or a snap fit may also be used.

〔Effect of the invention〕

Since the present invention has the above structure, it has an excellent effect that the height of the cascade can be easily adjusted with a simple structure.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a processing tank to which the present invention is applied;
Fig. 2 is a front view showing the weir body used in this example, Fig. 3 is a side view of Fig. 2, Fig. 4 is a back view of Fig. 2, and Fig. 5 is a line taken along the V-V line of Fig. 2. The sectional view, FIG. 6, is a plan view of FIG. 2. 12...Developing tank body, 14...Bleach-fixing tank body, 16...First washing tank main body, 18...Second washing tank main body, 22...Third washing tank main body, 24...・4th flush tank body, 32... Weir body, 36... Rectangular notch.

Claims (1)

[Claims] (1) A processing tank in which a plurality of processing tanks for developing photosensitive materials are formed, and a notch formed in the partition wall of the plurality of processing tanks and a cascade weir are formed and the notch has a vertical height. a weir body having dimensions that allow it to be moved in the horizontal direction;
A processing tank for a developing device, comprising means for fixing the weir body to the notch.