JPH0738911Y2 - Negative film stock device for automatic development and printing of photographic light-sensitive materials - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] This invention is a negative in an automatic developing / printing apparatus for a photographic light-sensitive material capable of continuously developing a photographic film and printing / developing on a photographic paper at the same time. The present invention relates to a film stock device.

[Conventional technology]

It is common practice to develop a photographic film, print a negative image of the formed negative film on a photographic paper for exposure, and develop the photographic paper to form a photographic print.

By the way, conventionally, since development of photographic film and printing / development on photographic paper were processed by dedicated devices, respectively, there were many problems such as economical efficiency and a large installation space. there were.

In order to solve such a problem, an automatic developing / printing apparatus for a photographic light-sensitive material has been proposed which is capable of simultaneously developing a photographic film and printing / developing on a photographic paper at the same time. (See Japanese Laid-Open Publication No. 64-15741).

In the automatic developing / printing apparatus described in the above publication,
The film development unit continuously develops the films one by one, and the negative film after development is sent to the exposure section provided above the development unit, and the negative image of the negative film is printed and exposed on the photographic paper in the exposure section. is doing. Then, the negative film after printing and exposure is discharged from the film outlet provided above the exposure section, while the printing paper after printing and exposure is conveyed toward the printing paper developing unit provided next to the film developing unit. And is developing.

[Problems to be solved by the device]

By the way, in the above-mentioned automatic developing / printing apparatus, when the negative film after the baking exposure processing sent to the outside of the apparatus is tried to be again subjected to the baking exposure processing from the outside of the apparatus to the inside of the apparatus, the development is left inside the apparatus. Since the negative film after processing is removed from the transport path, there is a disadvantage that the negative film cannot be reprinted during the continuous development processing.

This invention has a technical object to solve the above-mentioned inconvenience and to enable the reprinting work of the negative film during the continuous development processing of the photographic film.

[Means for Solving the Problems]

In order to solve the above problems, in the present invention, an upper dark room and a lower dark room are provided in a single casing, and a developing unit for photographic film and a developing unit for photographic paper are incorporated in the lower dark room, and a film is formed. A negative in an automatic developing / printing device for photographic light-sensitive materials, in which the image of the negative film sent from the developing unit to the upper dark room is printed and exposed on the photographic paper, and the photographic paper is sent to the photographic paper developing unit in the lower dark room for processing In film stock equipment,
A negative film loop tank is provided on one side of the film developing unit, two film guide paths are provided above and below the loop tank so as to communicate with each other, and a negative film is provided at both ends of the lower guide path in an upper dark room. A first driving roller and a second driving roller for conveying toward each other are provided, and the pressing roller is brought into contact with the outer circumference of each driving roller, and the outer circumference of the first driving roller is provided on one side of the first driving roller located on the loop tank side. An L-shaped first guide for guiding the negative film toward
An upper part of the first guide is swingably supported, and a pair of feed rollers that convey the negative film toward the upper dark chamber are provided above the first drive roller.
The guide is swingable.

[Action]

The rotation of the first driving roller and the second driving roller is stopped in a state where the leading edge of the negative film after the development processing fed from the film developing unit passes between the first driving roller and the pressure bonding roller and is positioned in front of the first driving roller and the pressure bonding roller. And first
When the guide is moved away from the first drive roller, the negative film fed from the film developing unit is fed toward the loop tank and forms a loop in the loop tank.

Further, when the first drive roller and the second drive roller are stopped, the negative film for reprinting is transferred to the upper dark chamber along the transfer path of the negative film fed from the lower dark chamber toward the upper dark chamber by reversely rotating the pair of feed rollers. When the negative film for reprinting is fed from the reverse direction to the lower dark room, the leading end of the negative film for contact with the second driving roller and the pressing roller stops and stops. At this time, if the second guide is opened in advance, the negative film that is reversely fed by the rotation of the pair of feed rollers is fed toward the upper guide path and is fed into the loop tank communicating with the upper guide path. Form a loop.

In this way, since the negative film after development processing sent out from the film development unit and the negative film for reprinting that has been fed back can be stocked in the loop tank, the negative film of the negative film can be stored in the state where the film development processing is continued. Reprint processing can be performed.

〔Example〕

An embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 to 3, an upper dark room 2 and a lower dark room 3 are provided inside the casing 1.

Inside the lower dark chamber 3, a film developing unit U ₁ and a photographic paper developing unit U ₂ are incorporated.

The film developing unit U ₁ includes a plurality of processing solution tanks 4 filled with a developing solution such as a developing solution, a bleaching solution, a fixing solution and a stabilizing solution.
And a drying zone 5 following the treatment liquid tank 4.

A film feeding mechanism is incorporated in the processing liquid tank 4 and the drying zone 5, but details thereof are omitted in the drawing.

On the other hand, the photographic paper developing unit U ₂ is also a film developing unit U ₁
Similarly, a plurality of processing solution tanks 6 filled with a developing solution such as a developing solution, a bleaching solution, and a fixing stabilizing solution, and a drying zone 7 following the processing solution tank 6 are provided. A photographic paper feeding mechanism is also incorporated in the drying zone 7 and the processing liquid tank 6, but details thereof are omitted in the drawing.

The Patrone P, which is a roll of photographic film F ₁ ,
Is set in the insertion box 8 provided on the front side of the. The undeveloped photographic film F ₁ drawn downward from the cartridge P is transported downward by the rotation of the pair of feed rollers 9, guided by the guide rollers 10 provided below the feed rollers 9 and conveyed to the lower dark chamber 3. To be done.

When the rear end of the photographic film F ₁ is pulled out from the cartridge P, the cutter device 11 operates to cut the film F ₁ .

The photographic film F ₁ sent to the lower dark room 3 is sequentially conveyed into the plurality of processing liquid tanks 4 of the film developing unit U ₁ and is processed.

The negative film F ₁ after the development processing is sent to the drying zone 5 and dried, and the negative film F ₂ after the drying processing is
Insertion hole formed in the partition wall 12 between the upper dark room 2 and the lower dark room 3
It is sent from 13 to the upper darkroom 2.

In the upper dark room 2, a pair of feed rollers 14 for intermittently feeding the negative film F ₂ one frame at a time, and a cutting device 27 for cutting the photographic paper a drawn from the roll body R of the photographic paper a set in the upper dark room 27. Is cut into a predetermined size by the operation of
A plurality of feed rollers 16 that are conveyed to 15 and an exposure unit 17 that is pulled out by the exposure unit 15 and prints / exposes a negative image of the negative film F _{2 on} the printing paper a are incorporated.

The exposure unit 17 irradiates the negative film F ₂ with the light of the lamp 18 through the mirror tunnel 19 and forms the negative image on the negative film F _2.
The printing paper a drawn out to the exposure unit 15 via the reflection mirror 21 is printed and exposed.

The negative film F ₂ after printing exposure is conveyed upward by the operation of the feed roller 14, and is discharged to the outside from the film outlet 24 formed on the top wall 23 of the upper dark room 2.

On the other hand, the photographic printing paper a after printing is exposed to the lower feeding roller 25
Is fed into the lower dark chamber 3 through the insertion hole 26 formed in the partition wall 12, and is sequentially conveyed into the various processing liquid tanks 6 of the photographic paper developing unit U ₂ for development processing.

The photographic printing paper a after the development processing is sent to the drying zone 7 following the photographic printing paper development unit U ₂ and subjected to the drying processing, and the paper outlet 28
From the outside.

As shown in FIG. 1, a film stocker 30 is incorporated in the transfer path of the film F ₂ delivered from the film developing unit U ₁ .

Film stocker 30 has a structure in which a film guide frame 32 which projects above the film developing unit U ₁ to the top of the loop tank 31 disposed on one side of the film developing unit U _1.

As shown in FIG. 4, the film guide frame 32 has a U-shaped cross section in which a pair of side plates 34 are provided downward from both sides of an upper plate 33, and communicates with the loop tank 31 inside the film guide frame 32. Two film guide paths 35, 36 are provided.
Reference numeral 37 denotes a guide plate provided between the upper and lower film guide paths 35, 36. Of the two film guide paths 35, 36, a first drive roller 38 is provided at one end of the lower film guide path 36 to convey the negative film F ₂ fed from the film developing unit U ₁ toward the other end. The pressing roller 39 is in contact with the upper part of the outer periphery of the first driving roller 38.

On one side of the first driving roller 38, a negative film F ₂
An L-shaped first guide 40 is provided along the outer periphery of the drive roller 38, and a guide roller 41 is rotatably supported in the middle of the first guide 40. The upper portion of the first guide 40 is swingably supported about the pressing roller 39, and is swung by a drive device such as a motor or a solenoid (not shown).

Further, at the other end of the lower film guide path 36, the negative film F ₂ fed from the first drive roller 38 is inserted through the above-mentioned insertion hole.
A second drive roller 42 that conveys toward 13 is provided, and a pair of pressing rollers 43 and 44 are in contact with the lower outer periphery of the second drive roller 42 and one side of the outer periphery.

A pair of upper and lower feed rollers 45 and a film guide 46 are alternately provided between the first drive roller 38 and the second drive roller 42, and each feed roller 45 and the first and second drive rollers 38, 42 are not shown. It is driven to rotate by the device.

Above the second drive roller 42, a pair of left and right feed rollers 4 is provided.
7 and 48 are provided. One of the feed rollers 47, 48 is
The negative film F ₂ which is independently rotated by a drive device (not shown) and is fed from the second drive roller 42 when rotated in the direction of the arrow in FIG. 1 is conveyed to the insertion hole 13.

A guide plate 49 and a second guide 50 for guiding the movement of the negative film F ₂ are provided on the left and right between the feed rollers 47, 48 and the second drive roller 42, and the second guide 50 is centered on the one feed roller 48. The upper part is swingably supported. The second guide 50 is swung by a drive device such as a motor or a solenoid (not shown).

The film stocker 30 has the above-described structure, and the negative film F ₂ delivered from the film developing unit U ₁ is normally conveyed from the first drive roller 38 toward the second drive roller 42, and the second drive roller 42 It is conveyed to the upper dark room 2 via the feed rollers 47 and 48 and subjected to exposure processing.

In the middle of the exposure process, to reprint the negative film F ₂ that has been printed once, the negative film fed into the stocker 30 from the film developing unit U ₁
With the tip of F ₂ positioned between the first drive roller 38 and the second drive roller 42, the first and second drive rollers 38, 42 and the pair of upper and lower feed rollers 45 are stopped, and the first guide 40 is moved to the first guide roller 40. Open as shown in Figure 5.

Further, the pair of feed rollers 47 and 48 provided above the second drive roller 42 are reversely rotated, and at the same time, the second guide 50 is opened as shown in FIG. The negative film F ₃ for reprinting is inserted between the pair of feed rollers 47 and 48.

By opening the first guide 40, the negative film F ₂ sent from the film developing unit U ₁ is sent toward the loop tank 31 to form a loop L ₁ in the loop tank 31.

Also, the negative film F ₃ for reprinting is
It is sent downward by the rotation of 7, 48 and comes into contact with the contact portion of the second drive roller 42 and the pressing roller 44 to stop, and the feed roller 4
Negative film F for reprint sent by rotating 7 or 48
₃ is sent from the upper film guide path 35 to the loop tank 31 to form a loop L ₂ .

In this way, since the negative film F ₃ for reprinting can be stocked in the loop tank 31 through a route different from the negative film sent from the film developing unit, the negative film F sent from the film developing unit U ₁ can be stocked. ₂ without departing from the transport path, yet the negative film F ₃ for reprinting stocked in a loop tank 31 can be supplied to the upper darkroom 2 by the rotation in the arrow direction of FIG. 1 of feed rollers 47, 48 Therefore, the exposure process of the negative film for reprinting can be performed during the development process of the photographic film.

[Effect of device]

As described above, according to the negative film stock device according to the present invention, the negative film developed by the film developing unit and the negative film for reprint which is fed backward from the upper dark room to the lower dark room are respectively provided. Since it can be stocked in the loop tank, the exposure processing of the negative film for reprinting can be performed in the development processing step of the photographic film.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view showing an embodiment of a stock device according to the present invention, FIG. 2 is a vertical end side view of the same, and FIG. 3 is a sectional view taken along line III-III of FIG. FIG. 4 is a sectional view of the film stocker of the above, and FIG. 5 is a sectional view showing an operating state of the same. 1 ... Casing, 2 ... Upper darkroom, 3 ... Lower darkroom,
U ₁ ... film developing unit, U ₂ ... photographic paper developing unit, 35, 36 ... film guide path, 38 ... first drive roller, 39 ... presser roller, 40 ... first guide, 42 ... Second
Drive rollers, 43, 44 ...... Presser rollers, 47, 48 ...... Feed rollers, 50 ...... Second guide.

Claims (1)

[Scope of utility model registration request] 1. An upper dark chamber and a lower dark chamber are provided in a single casing, and a developing unit for photographic film and a developing unit for photographic paper are incorporated in the lower dark chamber and fed into the upper dark chamber from the film developing unit. In a negative film stocking device in an automatic developing / printing device for photographic light-sensitive materials, the image of the negative film is printed and exposed on a photographic paper, and the photographic paper is sent to a photographic paper developing unit in a lower dark room for development processing. A negative film loop tank is provided on one side of the unit, and two film guide paths are provided above and below in communication with the upper part of the loop tank,
A first drive roller and a second drive roller that convey the negative film toward the upper dark chamber are provided at both ends of the lower guide path.
A pressing roller is brought into contact with the outer circumference of each drive roller, and an L-shaped first guide for guiding the negative film toward the outer circumference of the first drive roller is provided on one side of the first drive roller located on the loop tank side. , A pair of feed rollers for swingably supporting the upper portion of the first guide and for feeding the negative film toward the upper dark chamber above the first drive roller, and swinging the second guide around the one feed roller. A negative film stock device in an automatic developing / printing device for photographic light-sensitive materials, which is movably installed.