JPH0376737B2 - - Google Patents

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.

[Prior Art] For example, there is a disc-shaped disc film as a photographic material.This disc film has a different shape from a strip-shaped roll film, and the processing time is different, so a special film holder is required. There is a photosensitive material processing apparatus that transports and processes the roll film using a complicated mechanism different from that used for the roll film.

In addition, Japanese Patent Laid-Open No. 59-37542 discloses a method for processing both disk film and roll film.
As disclosed in the above publication, there is a method in which a disk film is transported and processed on the same line as a roll film using a film holder.

[Problems to be Solved by the Invention] As described above, in the mechanism for transporting a disk film using a film holder, the driving of the film holder and the support of 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 portion attached to, for example, a conveyance leader, and there is a risk that the disk film may largely deviate from the conveyance path at the lower turn portion.

For this reason, it is conceivable to arrange a guide member in the lower turn part to guide the disk film that is largely removed and to convey it smoothly, but even when the disk film is conveyed in the normal conveyance state, this guide member is 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 convey a disk film without damaging the disk film.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the photosensitive material processing apparatus of the present invention includes a transport path for transporting a disk film held by a transport leader in a processing tank, and a transport path for transporting a disk film held by a transport leader. is conveyed by the conveyance mechanism to a position that avoids the holding position of the disk film, and the direction of this conveyance leader is changed at the lower turn part of the conveyance mechanism located at the bottom of the processing tank. The disc film is characterized in that a guide means is disposed in the disk film so as to allow the disk film to be conveyed in a normal conveyance state without contact along the turn trajectory drawn by the end of the disk film.

[Function] In this invention, a transport path is formed in the processing tank to transport the disk film held by the transport leader, and the transport leader uses the transport mechanism to apply transport force to a position away from the holding position of the disc film. The vehicle is transported with When the disk film comes off the conveyance path at the lower turn of the conveyance mechanism,
It is guided and conveyed by a guide means. When the disk film is conveyed in a normal state, it is conveyed without interfering with the guide means, and smooth conveyance 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 that blocks external light. On one side of this main body 1, a photosensitive material supply section 4 having a roll film supply section 2 and a disk film supply section 3 is provided. 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, a developing tank 6, a bleaching tank 7, a fixing tank 8, a washing or stabilizing tank 9, and a drying section 10 are successively arranged. 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.

A transport path 14 is formed by a transport mechanism 13 from the photosensitive material supply section 4 to the developing tank 6, bleaching tank 7, fixing tank 8, washing or stabilizing tank 9, drying section 10, and photosensitive material take-out section 5. disk film 17
is conveyed along this conveyance path 14 by a conveyance leader 15.

As shown in FIG. 3, the conveyance leader 15 has an engagement hole 15b formed in the center of the leader body 15a to engage with a conveyance leader sprocket (not shown). Disk attachment holes 15c are formed on both sides of this engagement hole 15b on the rear side of the leader body 15a in the conveying direction, and a disk film 17 is attached using attachment 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, for example, on the rear side in the conveyance direction,
It can be attached by fixing the tip with tape or the like (not shown).

As described above, a transport path 14 is formed in the processing tank to transport the disk film 17 held by the transport leader 15, and the transport leader 15 is moved to a position that avoids the position where the disc film 17 is held by the transport mechanism 13. It is designed to be transported by applying a transporting force to the material.

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

Guide rollers 21 and 22, which are guide means, are arranged around the lower roller 19 and the upper roller 20, and since these rollers have the same structure, the guide roller 21 will be explained. Note that the turn portion of the drying section 10 is also formed in the same manner.

As shown in FIG. 2, the guide rollers 21 arranged around the lower roller 19 guide the disk film 17 when it comes off greatly, and are arranged at positions that allow the disk film 17 to be transported when it is being transported in a normal state. has been done. That is, the direction of the transport leader 13 is changed at the lower turn part of the transport mechanism 13 disposed at the lower part of the processing tank, and a guide means is installed at this lower turn part in a regular manner along the turn trajectory drawn by the end of the disk film 17. It is arranged to allow non-contact transportation in the transportation state.

The center O of this lower roller 19 and the guide roller 2
The distance r from the surroundings of 1 can be determined by the following formula.

r>√ ² + (+2) ² However, R: radius D of the lower roller 19; diameter l of the disk film 17; distance between the center of the disk mounting part of the conveyance leader 15 and the tip of the notch 15d. For example, the lower roller 19 radius R of 15 mm, diameter D of disk film 17 65 mm, transfer leader 1
If the distance l between the center of the disc mounting part 5 and the tip of the notch 15d is 35 mm, then the lower roller 19
The distance r between the center of and the circumferential surface of the guide roller 21 is
Set to 69.2mm 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, and then attach the mounting member 16 to the disc film supply section 3.
Set to . Engagement hole 15 of this conveyance leader 15
A conveyance sprocket (not shown) of the conveyance mechanism 13 engages with b, and the conveyance leader 15 is conveyed along the conveyance path 14, returned by the lower roller 19, and conveyed to the next processing tank via the upper roller 22. Ru. The conveyance leader 15 is similarly conveyed in the next process processing tank, and the disk film 17 is thereby processed.

As shown in FIG.
Even if the disk film 17 is bent in the tangential direction of the disk film 17, the end portion of the disk film 17 is conveyed without interfering with the guide roller 21.

Furthermore, if the disc film 17 is large and may come off the transport path 14, it will be guided by the guide rollers 21, which will reduce damage to the disc film 17 and transport failure. .

4 and 5 show other embodiments,
The disk film 17 to be transported in this embodiment 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, and the outer periphery of the disk film 17 is attached at a position where it is not exposed to the outside of the leader body 15a.

When the disc film 17 is transported by such a transport leader 15, as shown in FIG.
Reference numeral 7 denotes a mounting portion which is inclined in the tangential direction of the lower roller 19. Therefore, the distance r between the center O of the lower roller 19 and the circumferential surface of the guide roller 21 can be determined by the following equation.

r>√ ² + (2) ² However, R: Radius of the lower roller 19 D: Diameter of the disc film 17 For example, if the radius R of the lower roller 19 is 15 mm and the diameter D of the disc film 17 is 65 mm, the lower roller The distance r between the center O of the roller 19 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 disk films.

[Effects of the Invention] As described above, the present invention forms a transport path for transporting the disk film held by the transport leader in the processing tank, and the transport leader avoids the holding position of the disc film by the transport mechanism. The direction of the transport leader is changed by the lower turn part of the transport mechanism placed at the bottom of the processing tank, and the guide means is attached to the lower turn part so that the direction of the transport leader is changed by the turn drawn by the edge of the disk film. Since the arrangement is such that it allows non-contact conveyance in the regular conveyance state along the trajectory, the disk film can be conveyed to the processing tank with a simple mechanism, and the disk film can be conveyed at the lower turn of the conveyance mechanism. When the disc film deviates from the route, it is guided by the guide means, and on the other hand, when the disc film is transported in a normal transport state, there is no fear of interference with the guide means, and the disc film can be smoothly transported 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, Figures 4 and 5 show other embodiments, with Figure 4 being an enlarged view of the main parts;
FIG. 5 is a front view showing a state in which the disk film is attached to the transport leader. 2... Roll film supply section, 3... Disc film supply section, 13... Conveyance mechanism, 14... Conveyance path,
15... Conveyance leader, 17... Disc film, 1
9...Lower roller, 21...Guide roller.

Claims (1)

[Claims] 1. A transport path is formed in the processing tank to transport the disc film held by a transport leader, and the transport leader is transported by a transport mechanism to a position avoiding the holding position of the disc film by applying a transport force,
The direction of this conveyance leader is changed by the lower turn part of the conveyance mechanism arranged at the bottom of the processing tank, and the guide means is attached to this lower turn part so that it can be moved in the normal conveyance state along the turn locus drawn by the edge of the disk film. A photosensitive material processing device characterized in that the device is arranged so as to allow conveyance through contact.