JPS6311943A - Photosensitive material processor - Google Patents

Abstract

PURPOSE:To smoothly guide and carry a disk film, by installing a guide means to a lower disk film turning section at a position, at which the guide means can normally guide the disk film. CONSTITUTION:When a carrying leader 15 which is carried through a carrying path 14 provided in a carrying mechanism 13 makes a turn at a lower roller section 19, a disk film 17 is carried smoothly without receiving any interference from guide rollers 21 at its end section even if the leader 15 curves in the tangential direction of the roller 19. Moreover, since the disk film 17 is contacted with and guided by the guide rollers 21 when the disk film 17 is so large in size that it gets out of the carrying path 14 outward, occasions when the disk film is damaged or cannot be carried can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a photosensitive material processing apparatus for conveying and processing a disk film.

(Background of the Invention) For example, as a photographic material, there is a disc-shaped disc film, which has a different shape from a strip-shaped roll film, and requires a special film holder because of the difference in processing time. There is a photosensitive material processing device that transports and processes the roll film using a complicated mechanism different from the roll film used.

In addition, as a method for processing both a disc film and a roll film, as disclosed in Japanese Patent Laid-Open No. 59-37542, a film holder is used to transport the disc film and the roll film on the same line. There are things that need to be processed.

(Problems to be Solved by the Invention) As described above, in the mechanism for transporting a disc film using a film holder, driving the film holder and supporting the film become complicated, resulting in an increase in the size of the device. For this reason, the applicant proposed a photosensitive material processing apparatus that has a simple structure and processes disk films by sequentially transporting them along a transport path in the same way as roll films.

Incidentally, the disk film is conveyed with a disk-shaped core having a relatively thick center attached to, for example, a conveyance leader, and there is a risk that the disk film may deviate significantly from the conveyance path at the lower turn portion.

For this reason, it is conceivable to arrange a guide member at the lower turn part to guide the disc film that is largely removed and to transport it smoothly, but even when the disc film is transported in the normal transport state, this guide member There is a risk of interference.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a photosensitive material processing apparatus that can smoothly guide and transport a disc film without damaging the disc film.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a photosensitive material processing apparatus for conveying and processing a disk film.
a guide means at the lower turn of the disc film;
It is characterized by being placed in a position that allows the regular conveyance of the disc film.

(Function) In this invention, when the disc film comes off the conveyance path at the lower turn portion of the conveyance path, it is guided and conveyed by the guide means. When the disc film is transported in a normal state, it is transported without interfering with the guide means, and smooth transport processing is performed.

(Example) Hereinafter, an example of the present invention will be described in detail based on the accompanying drawings.

In the figure, reference numeral 1 denotes a main body of a photosensitive material processing apparatus for evacuation of external light, and one side of this main body 1 is equipped with a photosensitive material supply section 4 having a roll film supply section 2 and a disk film supply section 3. , a photosensitive material take-out section 5 is provided on the other side. Between the photosensitive material supply section 4 and the photosensitive material take-out section 5, that is, inside the apparatus main body 1, there are a developing Pa 6, a bleaching tank 7, a fixing tank 8, and a washing or stabilizing tank 9.
and a drying section 10 are provided, and a predetermined amount of processing liquid is stored in each of these processing tanks.

Note that this processing tank may be composed of a developing tank, a bleach-fixing tank, a washing tank, or a stabilizing tank.

Waste liquid tanks 11 and 12 are arranged at the bottom of the processing tank and are designed to store overflowing waste liquid. Further, the waste liquid may be discharged to the outside without being stored in the apparatus main body 1 in this manner.

From this photosensitive material supply section 4, development Ji16. A conveyance path 14 is formed by a conveyance mechanism 13 in the bleaching tank 7, fixing bath 8, washing or stabilizing bath 9, drying section 10, and photosensitive material take-out section 5, and the photosensitive material is conveyed along this conveyance path 14 by a conveyance leader IS. be done.

As shown in FIG.
An engagement hole tab is formed in the center of a for engagement with a transport leader sprocket (not shown). Reader body 15a
Disc mounting holes 15c are formed on both sides of this engagement hole 15b on the rear side in the conveyance direction, and a disc film 17 is mounted with mounting members 16. Furthermore, notches 15d are formed on both sides of this mounting portion to allow the processing liquid to pass therethrough.

When attaching the roll film 18 to the conveyance leader 15, it is attached to the rear side in the conveyance direction by fixing the tip end with, for example, a tape (not shown).

The conveyance mechanism 13 is configured to return the photosensitive material with a lower roller 19 placed at the bottom of the processing tank, and further turn the photosensitive material with an upper roller 20 placed between the processing tanks and convey it to the next processing tank. .

Guide rollers 21 and 22 serving as guide means are arranged around the lower roller 19 and the upper roller 20.

As shown in Fig. 7jiJ2, the guide rollers 21 arranged around the lower roller 19 guide the disc film 17 when it comes off greatly, and are arranged at a position that allows the disc film 17 to be transported when it is transported in a normal state. ing.

The distance mr between the center 0 of the lower roller 19 and the circumferential surface of the guide roller 21 can be determined by the following equation.

r> R”+(, Q+〒7 YO7 However, R: Radius of lower roller 19 D: Diameter of disk film 17; center of disk mounting part of conveyance leader 15 and notch 15d
For example, the radius R of the lower roller 19 is 15 mm, the diameter of the disc film 17 is 65 mm, and the distance f between the center of the disc mounting part of the conveyance leader 17 and the notch end of the notch 15d.
If ifi is 35 mm, the distance r between the center of the lower roller 19 and the circumferential surface of the guide roller 21 is set to 69.2 mm or more.

Next, the operation of this embodiment will be explained.

When processing the disc film 17, prepare the mounting member 16, insert it into the disc mounting hole 15c of the transport leader 15, attach the disc film 17 to the transport leader 15,
Set the disc in the film supply section 3. A transport sprocket (not shown) of the transport mechanism 13 is engaged with the engagement hole 15b of the transport leader 15, and the transport leader 15 is connected to the transport path 15.
It is conveyed along the lower roller 19, and then conveyed to the next processing tank via the upper roller 22.

The conveyance leader 15 is similarly conveyed in the processing tank of the next process,
This completes the processing of the disc film 17.

When the conveyance leader 15 conveyed through the conveyance path 14 provided in the conveyance mechanism 13 turns by the lower roller 19, the second
As shown in the figure, even if the disc film 17 is bent in the tangential direction of the lower roller 19, the end of the disc film 17 is transported without interfering with the guide roller 21.

Furthermore, if the disc film 17 is large and may come off the transport path 14 outward, it will be brought into contact with the guide rollers 21 and guided, which will reduce the possibility of the disc film 17 being damaged or transport failure. .

FIGS. 4 and 5 show another embodiment, in which the disk film 17 to be transported is attached to a transport leader 15 as shown in FIG. That is, the disk film 17 is attached to the rear end of the leader body 15a near the center.
The disc film 17 is mounted in a position where the outer peripheral portion of the disc film 17 is not exposed to the outside from the leader body 15a.

When the disc film 17 is transported by such a transport leader 15, as shown in FIG. 4, when the lower roller 19 turns, the disc film 17 is inclined in the tangential direction of the lower roller 19 at the mounting portion. Therefore, the lower roller 1
The distance between the center 0 of 9 and the circumferential surface of the guide roller 210! Ilr can be determined by the following formula.

r)　R’+(D/2- However, R: radius of the lower roller 19 D: Diameter of disk film 17 For example, the radius R of the lower roller 19 is 15 mm.

If the diameter of the disc film 17 is 65 mm, the distance 111r between the center O of the lower roller 17 and the circumferential surface of the guide roller 21 is set to 35.8 mm or more.

Although this embodiment has been described with reference to a case where the present invention is applied to a photosensitive material processing apparatus which can also process roll films, it is similarly applicable to a photosensitive material processing apparatus exclusively used for processing disk films.

(Effects of the Invention) As described above, in the present invention, the guide means is disposed at the lower turn portion of the disk film at a position that allows normal conveyance of the disk film. When the disk film comes off, it is guided by the guide means, and on the other hand, when the disk film is conveyed in a normal conveyance state, there is no fear of interference with the guide means, and the disk film can be smoothly conveyed and processed.

[Brief explanation of drawings]

FIG. 1 is a schematic sectional view of a photosensitive material processing apparatus to which the present invention is applied, FIG. 2 is an enlarged view of the main parts of the present invention, FIG. 3 is a front view showing a state in which a disk film is attached to a conveyance leader, 4 and 5 show other embodiments, with FIG. 4 being an enlarged view of the main parts, and FIG. 5 being a front view showing the state in which the disk film is attached to the conveyance leader. 2... Roll film supply unit 3 - Disk film supply unit 13 - Conveyance mechanism 14 - Conveyance path 15 - Conveyance leader 17 - Disc film 19 - Lower roller 21 - Guide roller Patent applicant: Konishiroku Photo Industry Co., Ltd. Figure 2 Figure 4 Figure 31a Figure 5

Claims (1)

[Claims] 1. A photosensitive material processing apparatus for transporting and processing a disc film, characterized in that a guide means is disposed at a lower turn portion of the disc film to allow regular transport of the disc film.