JP2943664B2 - Photosensitive material processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photosensitive material processing apparatus provided with a submerged rack mechanism which is immersed in a processing liquid tank of an automatic developing processor.

[0002]

2. Description of the Related Art A conventional automatic developing processor uses a rack which is easily detachable for transporting a photosensitive material in a processing solution tank, and the rack is provided with various rollers at appropriate positions. Among the rollers provided in the rack, the turn roller is relatively large, so that both the weight and the volume occupying the rack are large.

The structure of a conventional turn roller boss will be described with reference to the drawings. FIG. 1 is an explanatory view showing a conventional turn roller and a turn roller boss, and FIG. 2 is a schematic sectional view illustrating a conventional turn roller boss.

As can be seen from FIG. 1, a rubber roller 12 is mounted on a turn roller boss 11 and used as a turn roller. In order to stabilize the rubber roller 12, the turn roller boss 11 is provided with protruding edges having large diameters at both ends.

As can be seen from FIG. 2, the turn roller boss 11 has a through hole for connecting a shaft, and the main body has a solid cylindrical shape. The turn roller changes the conveying direction of the photosensitive material and is therefore larger than other rollers. When a thick and large part such as a turn roller boss is manufactured by injection molding, irregularities called sink marks occur on a continuous surface where molding pressure is insufficient. Therefore, the injection molding is not applied to the turn roller boss, and the boss is manufactured by machining.

[0006]

In a large roller such as a turn roller used in a processing solution tank of an automatic development processor, a turn roller boss serving as a shaft on which a rubber roller is mounted is large in size by machining. Thick ones are made. In the case of machining, it takes time and effort to manufacture. Also, to become a solid boss,
The weight is increased, resulting in a heavy rack, which is inconvenient to handle.

An object of the present invention is to obtain a turn roller boss which is light in weight and low in production cost, to improve the cost and handling of an automatic development processor, and to spread the processor.

[0008]

In order to solve the above-mentioned problems, the turn roller boss of the rack of the automatic development processor according to the present invention is configured to be hollow or filled with another member so that the processing liquid does not enter. I do.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The turn roller boss of the rack of the automatic development processor of the present invention is hollow or filled with other members so that the processing liquid does not enter therein. These are shown in (1) to (5).

(1) A turn roller boss having a cover hermetically welded to a cylindrical component to be injection-molded by ultrasonic welding or vibration welding. The cylindrical part has a shape in which large and small double cylinders are concentrically stacked, closed at one end, and opened at the other end. With such a shape, it can be manufactured sufficiently by injection molding. The central hole is a through hole connecting the shaft that rotates the roller, and the outer cavity is sealed with a cover to form a hollow portion.

On the other hand, the cover has a through hole for connecting the shaft at the open end of the cylindrical part and hermetically seals the cavity, so that the cover has a disk shape with a hole at the center. It is preferable to provide a circular projection so as to closely adhere to the cavity to enhance airtightness. Since the hollow portion is formed, the weight can be reduced, and the cost can be reduced because the component can be manufactured by injection molding.

(2) A turn roller boss in which a liquid reducing block is loaded on a cylindrical part to be injection molded. The cylindrical part is exactly the same as described above, and has a shape in which large and small double cylinders are concentrically stacked, closed at one end, and opened at the other end. The central hole serves as a through hole for connecting a shaft for rotating the roller, and a cavity outside the hole is filled with a liquid reducing block without leaving any gap.

On the other hand, the liquid reducing block is loaded without leaving any gap in the cylindrical cavity, and prevents the infiltration of the processing liquid. Therefore, the shape of the liquid reducing block is a somewhat thick cylindrical shape. Although weight reduction cannot be expected, parts can be manufactured by injection molding, and since the liquid reduction block can be easily loaded, the manufacturing process is simplified, and considerable cost reduction is expected.

(3) A turn roller boss having a hollow portion formed by injection molding and hollow molding techniques. Since the hollow portion needs to have strength enough to be used as a turn roller, a high degree of dimensional accuracy is required for the hollow molding technology to be used. Such a turn roller boss requires only one part, and can be reduced in weight and cost.

(4) A turn roller boss manufactured by a foam molding technique. Such a turn roller boss can be provided at low cost, and has advantages such as excellent strength, a small number of manufacturing steps, and a single component.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described with reference to an example of a turn roller of a rack of an automatic developing machine according to the present invention. FIG. 3 is an explanatory view showing an example of a turn roller of a rack of the automatic developing machine of the present invention. FIG. 4 is a partial cross-sectional view showing an example of a turn roller of a rack of the automatic development processor of the present invention. The drawing shows a turn roller boss in which a cover is hermetically welded to an injection-molded cylindrical part by ultrasonic welding or vibration welding.

As shown in FIG. 3, a cylindrical component 1 has a through hole for connecting a shaft and a cavity open on one side, and a cover 2 for sealing the cavity is a disk having a hole in the center. .
The cover 2 may be attached so as to close the cavity of the cylindrical component 1 and bonded by ultrasonic welding or vibration welding.

As shown in FIG. 4, the turn roller boss and the cover are adhered, and the rubber roller 6 is attached to complete the turn roller. As shown in the figure, by providing a circular projection on the cover 2 ′, a large welding area between the tubular component 1 and the cover 2 can be obtained, so that sufficient airtightness can be obtained.

FIG. 5 is an explanatory view showing an example of a turn roller of a rack of the automatic developing machine of the present invention. FIG. 6 is a partial cross-sectional view showing an example of the turn roller of the rack of the automatic development processor of the present invention. FIG. 7 is a partial cross-sectional view showing an example of a turn roller of a rack of the automatic development processor of the present invention. The drawing shows a turn roller boss in which a liquid reducing block is loaded on a cylindrical part formed by injection molding.

As shown in FIG. 5, the cylindrical part 3 has a through hole for connecting the shaft and a cavity open on one side, leaving no gap in the cavity, and the liquid reducing block 4 to be loaded is located at the center. It has a cylindrical shape with through holes. When the liquid reducing block 4 is loaded into the hollow of the cylindrical component 3 and the rubber roller 8 is attached, the liquid reducing block 4 becomes a turn roller.

As shown in FIG. 6, since the liquid reducing block 4 'fills the cavity of the cylindrical component 3, there is no need to particularly consider airtightness or the like. As a fixing method of the cylindrical part 3 and the liquid reducing block 4, for example, a fitting hole 9 is provided in the cylindrical part 3 and a projection 10 is provided in the liquid reducing block 4, respectively, as shown in FIG.
A method of fitting the projection 10 into the fitting hole 9 is conceivable.

FIG. 8 is a sectional view showing an example of a turn roller of a rack of the automatic developing machine according to the present invention. The drawing shows a turn roller boss having a hollow portion formed by injection molding and hollow molding techniques.

When a hollow molding technique capable of controlling the hollow shape and obtaining a high degree of dimensional accuracy is used, one hollow portion may be formed like a turn roller boss 5 shown in the figure.
However, if that does not provide enough strength to use,
The hollow portion may be divided into a plurality of portions. Further, reinforcement measures such as embedding of an auxiliary member are also effective.

FIG. 9 is a cross-sectional view showing an example of a turn roller of a rack of the automatic processor according to the present invention. The drawing shows a turn roller boss produced by a foam molding technique. The turn roller boss 7 as shown in FIG. 9 manufactured by foam molding contains a myriad of bubbles inside, but is not so light in weight, but rather has a simple manufacturing process, requires only one part, and has low cost. It is noted that.

The turn roller of the rack of the automatic developing machine of the present invention is not limited to the turn roller, but can be applied to any roller which is desired to be reduced in weight and cost.

[0026]

As described above, the turn roller of the rack of the automatic development processor of the present invention is provided with a turn roller boss or a liquid reduction block having a cover hermetically welded to the cavity of a cylindrical part capable of being injection molded. Using the turn roller boss
Alternatively, a turn roller boss having a hollow portion formed by injection molding and hollow molding technology, or a turn roller boss produced by foam molding technology is used.

Conventionally, instead of a turn roller boss manufactured by machining, an injection molded product having a low cost and a simple manufacturing process can be used. A turn roller boss having a cover adhered by ultrasonic welding or vibration welding or a turn roller boss manufactured by a hollow molding technique has effects such as a considerable reduction in weight.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a conventional turn roller and a turn roller boss.

FIG. 2 is a schematic sectional view illustrating a conventional turn roller boss.

FIG. 3 is an explanatory view showing an example of a turn roller of a rack of the automatic developing machine of the present invention.

FIG. 4 is a partial cross-sectional view showing an example of a turn roller of a rack of the automatic developing machine of the present invention.

FIG. 5 is an explanatory view showing an example of a turn roller of a rack of the automatic developing machine of the present invention.

FIG. 6 is a partial cross-sectional view showing an example of a turn roller of a rack of the automatic developing machine of the present invention.

FIG. 7 is a partial sectional view showing an example of a turn roller of a rack of the automatic developing machine of the present invention.

FIG. 8 is a cross-sectional view showing an example of a turn roller of a rack of the automatic developing machine of the present invention.

FIG. 9 is a cross-sectional view showing an example of a turn roller of a rack of the automatic developing machine of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cylindrical part 2 Cover 3 Cylindrical part 4 Liquid reduction block 5 Turn roller boss 6 Rubber roller 7 Turn roller boss 8 Rubber roller 9 Fitting hole 10 Projection 11 Turn roller boss 12 Rubber roller

Claims (5)

(57) [Claims] 1. A photosensitive material processing apparatus provided with a rack mechanism including a roller boss, wherein the roller boss has a shape in which large and small double cylinders are concentrically stacked, one end is closed, and the other end is open. And a disc-shaped cover with a hole at the center are joined by ultrasonic welding, and the cavity formed by the double cylinder of the cylindrical component is hermetically sealed. Material processing equipment. 2. A photosensitive material processing apparatus provided with a rack mechanism including a roller boss, wherein the roller boss has a shape in which large and small double cylinders are concentrically stacked, one end is closed, and the other end is open. And a disc-shaped cover with a hole at the center are joined by vibration welding, and a structure in which a cavity formed by a double cylinder of the cylindrical component is hermetically sealed. Material processing equipment. 3. A photosensitive material processing apparatus provided with a rack mechanism including a roller boss, wherein the roller boss has a shape in which large and small double cylinders are concentrically overlapped, one end is closed, and the other end is open. A photosensitive material processing apparatus having a structure in which a cylindrical component and a cylindrical liquid reducing block are loaded and coupled to a cavity formed by a double cylinder of the cylindrical component. 4. A photosensitive material processing apparatus provided with a rack mechanism including a roller boss, wherein the roller boss has a structure in which a hollow portion is formed by injection molding and hollow molding techniques. 5. A photosensitive material processing apparatus provided with a rack mechanism including a roller boss, wherein the roller boss has a structure formed by a foam molding technique.