JPH0248843Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an improvement of a processing tank in an automatic developing device that automatically develops photographic light-sensitive materials such as photographic negative film and photographic paper.

(Prior Art) In general, a developing device for photographic light-sensitive materials consists of a processing tank that stores a developer, a bleaching solution, a fixer, etc., along with a washing tank as appropriate, and a photographic negative film, etc. is sequentially immersed in each of these tanks. The structure is such that development processing is performed by doing this. In order to perform this developing process automatically, a processing tank row is formed by arranging the above-mentioned tanks in series, and a frame is placed on the outer part of this processing tank row, and the negatives are placed on the frame. It is constructed to support a rack for transporting films and the like.

Here, in order to prevent the processing liquid from leaking outside between the frame and tank during the operation of the developing device and contaminating the surrounding environment, conventionally the upper surface of the processing tank and the lower surface of the frame have been The joints were filled with, for example, a silicon-based sealant.

(Problem to be solved by the invention) As mentioned above, in the conventional method of sealing between the tank and the frame using a sealant, uneven thickness of the sealant can cause liquid leakage. In order to prevent this, it is necessary to fill the sealant to a uniform thickness over the entire length, which is cumbersome and difficult.
If the thickness is even slightly uneven, there are problems such as dripping.

In view of the above-mentioned difficulties, the present invention has been made with the object of providing a processing tank for an automatic developing device that has a simple structure and can reliably seal between the tank and the frame.

(Means for Solving the Problems) In order to achieve the above-mentioned object, a groove width is gradually reduced as it reaches the groove bottom on the upper end surface of the outer peripheral wall of the processing tank row formed by connecting a plurality of tanks. A device for processing photographic light-sensitive materials is provided, in which an elastic sealing member having a lower half having a shape substantially the same as that of the groove is fitted into the groove, and a continuous groove is formed. The present invention is characterized in that a frame for mounting and supporting the above-mentioned processing vessels is installed on the processing tank rows with the elastic seal member interposed therebetween.

(Function) As described above, in the processing tank of the automatic developing device according to the present invention, the concave groove formed on the upper end surface of the outer peripheral wall of the processing tank array constituting the processing tank has a groove width that reaches the groove bottom. Therefore, the shape of the lower half of the elastic seal member is gradually decreased and connected in series, and the shape of the lower half of the elastic seal member fitted into this groove is approximately the same as the shape of the groove, so that It is extremely easy to fit the lower half of the elastic seal member onto the frame, and it is also easy to install a frame to place it on top of the elastic seal member. The more the elastic seal member is placed and supported, the closer it is to the groove bottom, the more the elastic deformation of the elastic seal member caused by this weight becomes more severe, and the degree of close contact between the groove wall, that is, the groove, and the elastic seal member becomes , becomes stronger as it reaches the bottom of the groove, and the degree of close contact between the frame and the elastic seal member also becomes stronger.

(Embodiment) Hereinafter, an embodiment of the present invention will be described based on the drawings. As shown in FIGS. Each of these tanks 1 stores processing liquids such as a developer, a bleaching liquid, and a fixing liquid, as well as washing water for washing. In the drawing, for the sake of simplicity, three tanks 1 are shown in series, but when developing negative film, a developing tank, a bleach tank, a stabilizing tank, and a stabilizing tank are combined with a washing tank as appropriate. In the case of developing photographic paper, a device in which a developer tank, a bleach-fix tank, and a washing tank are installed in a row is used. A support frame 3 is attached along the outer circumferential surface of the upper end of the outer wall so as to surround the normal processing tank row 2, forming an outer circumferential wall. It is fixed to the outer surface of the outer circumferential wall by means of adhesive or the like so as to be substantially flush with the upper end surface of the outer peripheral wall. By providing diagonal notches in the inner peripheral edge of the upper end of the support frame 3 and the outer peripheral edge of the upper end of the outer peripheral wall facing the support frame 3, respectively, the upper end surface of the outer peripheral wall of the processing tank row 2 is A V-shaped concave groove 4 is formed in which the groove width gradually decreases as it reaches the groove bottom.

Reference numeral 5 denotes an elastic sealing member that is fitted into the groove 4, and the elastic sealing member 5 is made of an elastic material with good chemical resistance such as ethylene-propylene rubber or silicone rubber. teeth,
As shown in FIGS. 3 and 4, the cross-sectional shape is a hollow pentagon so as to match the V-shaped groove 4. That is, the V-shaped part 5a of the lower half has a shape that matches the V-shape of the groove, and the upper end flat part 5b is fitted into the groove 4 while protruding from the upper surface of the outer peripheral wall. It's becoming like that.

The frame 6 that supports the rack etc. has recesses 7, 7, . . . on its upper edge for attaching rack pins.
... is cut out, and the lower part thereof is bent into a U-shape to install a rack conveyance device, etc. at the installation section 6.
a is formed, and a horizontal portion is formed in the intermediate portion, and this portion serves as a placement portion 6b placed on the upper flat portion 5b of the sealing member 5. In addition, below the attachment part of the support frame 3 of the processing tank row 2, there is a spacer 8 that comes into contact with the inner circumferential wall of the installation part 6a.
is fixed.

This embodiment is constructed as described above, and the frame 6
To install the processing tank row 2, first install the processing tank row 2.
The V-shaped part 5a of the seal member 5 is fitted into the V-shaped groove 4 formed on the upper end surface of the outer peripheral wall of the seal member 5, and then the frame 6 is fitted onto the upper flat part 5b of the seal member 5.
The mounting portion 6b may be placed in contact with the mounting portion 6b. Here, the sealing member 5 is elastically deformed by the influence of the own weight of the frame 6 and the weight of the rack, rack conveyor, etc. attached thereto, and the V-shaped portion 5a, which is extremely elastically deformed, forms a V-shaped groove. 4 is firmly pressed against the groove wall, and the upper end flat portion 5b
is firmly attached to the mounting portion 6b of the frame 6, and the space therebetween is reliably liquid-tight over the entire length, so that the processing liquid and the like will not leak to the outside.

In the above embodiment, the seal member 6 has a hollow pentagonal cross-section, but as shown in FIG.
1, a circular seal member 52, a semicircular seal member 53, etc. as shown in FIGS. 6 and 7 may also be used. When using the circular seal member 52 and the semicircular seal member 53, an arcuate groove 4 is formed on the upper end surface of the outer peripheral wall of the processing tank row 2.
1 may be formed. Further, as long as the upper end surface of the outer peripheral wall of the processing tank row 2 is formed to have a width that is sufficient to form a groove for fitting the sealing member, the support frame 3 is not necessarily attached to the processing tank row 2. There is no need to attach it to the outer wall. Furthermore, a substantially J-shaped frame 61 as shown in FIG. By vertically disposing the portion 62, the frame 61 can be
can be installed in a stable condition.

(Effect of the invention) As is clear from the above explanation, in the processing tank of the automatic developing device according to the present invention, the groove formed on the upper end surface of the outer peripheral wall of the processing tank row constituting the processing tank is a groove. The width of the elastic seal member is gradually reduced as it reaches the bottom of the groove, and the elastic seal member is connected in series, and the shape of the lower half of the elastic seal member fitted into this groove is substantially the same as the shape of the groove. Therefore, it is extremely easy to fit the lower half of the elastic seal member into the groove, and the fitted elastic seal member is positioned by the groove.
Not only is it extremely easy to place and accurately install the frame on top of the frame, but the more equipment for photographic processing is placed and supported on the installed frame, the more the weight of the frame increases. The elastic deformation of the elastic sealing member that occurs increases as it approaches the groove bottom.
The degree of close contact between the groove wall, that is, the concave groove, and the elastic seal member becomes stronger as it reaches the groove bottom, and the degree of close contact between the frame and the elastic seal member also becomes stronger. As a result, leakage of the processing liquid in each tank forming the processing tank array can be completely and reliably prevented, resulting in excellent practical effects. .

[Brief explanation of the drawing]

Figure 1 is a plan view showing one embodiment of the present invention;
The figure is a cross-sectional view, Figure 3 is an enlarged view of the main part of Figure 2,
FIG. 4 is an end view of a cut portion of the elastic seal member, FIGS. 5 to 7 are end views of a cut portion showing modified examples of the elastic seal member, FIG. 8 is a sectional view showing a modified example of the groove, and FIG. The figure is a sectional view showing a modified example of the frame. 1... Tank, 2... Processing tank row, 3... Support frame,
4, 41... Concave groove, 5, 51, 52, 53... Elastic seal member, 6, 61... Frame.

Claims (1)

[Scope of utility model registration request] The upper end surface of the outer circumferential wall of the processing tank row formed by a plurality of tanks is provided with a groove whose width gradually decreases as it reaches the groove bottom, and which is connected in series to form a groove. An elastic seal member whose lower half has a shape substantially the same as that of the groove is fitted, and a frame on which equipment for processing photographic light-sensitive materials is placed and supported is interposed with the elastic seal member, and the above processing is performed. A processing tank of an automatic developing device characterized in that it is installed on a row of tanks.