DE2334090A1 - METHOD OF TRANSPORTING FILM IN A PHOTOGRAPHIC TREATMENT DEVICE AND FILM TRANSFER DEVICE - Google Patents

Description

. DR. E. WIEGAND DIPL-ING. W. NIEMANN 23 3 A

DR. M. KÖHLER DIPL-ING. C. GERNHARDT

MÖNCHEN HAMBURG

phone: 395314 "2000 HAMBURG 50, July 3, 1973

TELEGRAMS: KARPATENT KDNIGSTRASSE 28

W. 25895/73 2o / Vo

Fuji Photo Film Co., Ltd. Kanagawa (Japan)

Methods of transporting film in a photographic processing facility and Film transport device

The invention relates to a method of transporting film in a photographic processing facility and film transport device.

In general, the invention relates to photographic processing and, more particularly, to a method for transporting a long photographic film narrow width using fewer transport rollers and a film transport device for this Purpose which is portable or removable.

Known transport devices or frames in photographic facilities have the disadvantage that Films of different widths from that of the in

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The guide grooves located on the frame naturally not can be used because the film is guided directly through the guide grooves of the frame.

Heretofore it has been known to transport a long photographic film using fewer transport rollers, Rollers to be provided on the upper and the lower U-shaped turning area of the transport frame, which in both side plates has guide grooves to hold the film along the guide grooves with both side edges in the guide grooves advance so as to prevent the film

curls or twists, with the film flowing through the rollers of the upper U-shaped turning area or rollers of the upper and lower U-shaped turning area promoted or is moved forward. It is impossible ^ a narrow film to treat in such a device.

Using such an apparatus, it is possible to make a long film of a width that is smaller is to be moved as that of a guide part by moving only the guide part along the guide grooves, by connecting a guide part longer than the passage of the supporting rollers to the end of the film. However, if the end of the film separates from the rolls of the upper or lower U-shaped turning area, it sometimes bulges with the result that it is not treated in the right way.

One purpose of the invention is therefore to provide a device and a method for transporting a To create film in a photographic processing facility, which is not limited by the narrow width of the film disadvantageous. is affected and which still allows the film to be dried quickly.

Another purpose of the invention is to provide an apparatus and method for transporting a film to create in a photographic treatment facility

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fen that does not affect the film surface during treatment with a treatment liquid or .. destroyed.

Another purpose of the invention is to provide a device and a method for transporting of a film in a photographic processing facility to create which has improved airflow drying.

A characteristic feature of the invention is embodied in a device according to which a film transpf ^ gtiert in a photographic treatment facility can be, the stage »of conveying or advancing only one film guide part along the Guide grooves and also the advancement of the film stretched between the lower turning rollers and the upper turning rollers are included in this procedure.

Another characteristic feature of the present invention is the provision of multiple film guides in the form of slender rods along the inner or Outside of the guide part guide grooves so that To prevent the end of the film from rolling up. If the edges "of the film are not guided along the guide grooves even if the width of the film is different from that of ordinary films, it is not affected by it, and the film can be dried quickly and evenly and furthermore destroys the film guide in the Shape of slender rods does not affect the film surface or does not affect the treatment of the film surface the treatment liquid and further improves the Flow drying by means of a stream of air in a drying stage of the film, thereby drying and developing be carried out evenly and safely.

Another purpose of the invention is to

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233A090

To create a film transport frame which is portable or removable from the developing device.

An embodiment of the invention is described below For example, explained with reference to the drawings.

Fig. 1 is a side view of an embodiment of the film transport frame according to the invention, the film transport from left to takes place on the right.

FIG. 2 is a front view of the film transport frame shown in FIG. 1.

Fig. 3 is a schematic view of the spatial relationship between a film transport frame and a film guide subassembly while the film guide portion is being transported. In Fig. 1, guide grooves 2 for guiding a film guide part, upper rollers 3 and 3 ', and a lower roller 4 for U-shaped turning are attached to side plates 1. A number of slender rods 5, which are arranged as a film guides on the inner and outer side along the guide grooves 2, si i also in Figs. 1 and 2 to see.

If the upper rollers 3 and 3 ^{1 are} engaged with drive ^{rollers 6 and 6 1} arranged in a treatment tank of an automatic developing device, the drive rollers 6 and 6 * work in combination with the adjacent upper rollers 3 and 3 ^f and roller M -as transport rollers.

Accordingly, a long film 7 is connected to another guide part of a width which fits into the guide grooves 2 (the distance from guide groove to guide groove is larger than the film width), so that the end of the guide part between an upper pair of rollers, consisting of a roll 3 and a roll 6 is used. The guide part is guided along the guide groove 2 with the result

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that the film (under tension) in a linear manner over the drive roller 6 in .Kombination with the roller 3, then

to the turning roller H and on to the drive roller 6 ¹ in combination with the roller 3 'without having contact with the guide grooves 2, since the guide grooves are only in contact with the guide part. If the end of the film separates from the upper pair of rollers, for example 3 and 6, or 3 ¹ and 6 ¹ , the film is prevented by the slender rods of the film guide 5 from opening and becomes, as shown in FIG , moved forward.

If the slender rod film guide 5 is not provided, the film would curl as shown in broken lines in Fig. 1 and denoted by reference numeral 7 ¹ , so that the film develops in an irregular manner, incorrectly Way dried or sometimes spoiled due to the adhesion when bending and rolling the film. According to the present invention, however, a film guide 5 made of slender rods is provided along the guide groove 2 for the guide member, and the end of the film can be advanced without curling to thereby treat the film uniformly. Since the film guide is in the form of slender rods, the treatment liquid can be applied to the film surface in the correct manner, and the drying process is not adversely affected either.

It is to be understood, however, that the present invention is not limited to slender bars or rods but that any equivalent structure which does not affect the flow of the developing solution or the air flow prevented to a substantial degree from being used. For example, individual slender rods, a grid or a net-like structure is used, and furthermore,

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if desired, a combination of several different film guiding devices can be used, for example, if desired, a net, which is placed over slender rods or bars. Furthermore can the film guide device, for example, made of a flexible or bendable material, for example a plastic or of a material such as stainless steel.

The right and left rod film guides 5 of the guide grooves 2 can also be in a zigzag shape be constructed. The film guide 5 can only be on the inside of the film guide 2 taking into account the Roll-up property (roll-up direction) of the film provided to achieve the purpose of the invention. In principle, since the film guide device is more preferred Way composed of slender rods or rods of a very small diameter or their equivalent, developer solution step very easily between individual bars, and the same effect, namely the absence of one significant flow obstacle, is observed in the dry air. The surface area of the film guide (consisting of slender rods) is accordingly as low as possible.

If the film guides 5 are provided in the longitudinal direction are, several guides can be provided in order to reduce the space between the individual guides 5 than the width of the film.

Although the upper rollers 3 and 3 ^{1 are provided} with the drive rollers 6 and 6 * in engagement in the treatment tank and are used as transport rollers in the embodiment described so far, it is obvious that the upper guiding rollers 3 and 3 'and the drive rollers 6 and G 'can be replaced by transport rollers that are present in the treatment tank per se. In

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in this case the frame is fixed in the treatment tank so that the pairs of rollers 3-3 'and 6-6' with the Grooves 2 come into matching engagement.

Some of the advantages of the present invention are listed below.

During the initial running of the film i ^ ird the guide part is inserted into the grooves in the side plates and the guide part is initially between them for example, held by a first RolcLenkombination 3-6. After the guide part goes through the first roller combination, the film is then only through the first roller combination 3-6 held in engagement and after each passage of a certain amount of film (equal to the length of

/ up the first rolls 3-6 down to roll 4 and then to the second rolls 3'-6 ') the guide part is no longer in the grooves and then only the film itself is held by the tension between the first rollers 3-6, the lower roller 4 and the second rollers 3'-6 '. The rod-shaped film guides 5 serve to solve the problem which occurs when the end of the film separates from the roles. The guide part is of course longer than the roller passage 6-6 '.

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Claims (10)

2334Ü9Q Claims Film transport device for a photographic Processing device for the photographic processing of a film of relatively small width compared to a guide part attached to this, with a transport frame which has: laterally arranged side plates (1) with guide grooves (2), which with the lateral edge part of the guide part in engagement. ' hen, the guide grooves (2) a guide part — transport path set which is substantially U-shaped; Direction diversion devicesCiO at the lowermost portion of the substantially U-shaped path, around the guide part and the film from one arm of the U-shaped path to the other arm to bring 5 film guides (5), which in one direction ^ ■ die.between the guide grooves run on both sides of the guide part, are arranged when this is on the U-shaped Moved away, wherein the guide part has a length which is at least equal to the length of the U-shaped movement path. 2. Device according to claim 1, characterized in that the transport frame transport rollers (3, 6, 3 ', 6') are arranged at the beginning and at the end of the U-shaped path and with the film to transport the same, in engagement are arranged. 3. Device according to one of claims 1 to 2, characterized in that the direction reversing device a -. ··. roller U located at the lower end of the U-shaped path having. 4. Device according to one of claims 1 to 3, characterized in that the film guides have a slimmer shape Have rods (5). 309884 / 1U3 5. Device according to one of claims 1 to 4, characterized in that the film guides are mesh-like Exhibit patterns. 6. Device according to one of claims 1 to 5, characterized in that the film guides consist of a, flexible material. 7. Device according to one of claims 1 to 6, characterized in that the film guides are made of stainless steel. 8. Device according to one of Claims 1 to 7, characterized in that the film guides are designed in a zigzag shape. 9. Device according to one of claims 1 to 8, characterized in that the film guides are arranged longitudinally so that there is a gap between the film guides are smaller than the width of the film. 10. A method of transporting film in a U-shaped path in a photographic processing facility using a transport frame with two side plates, the side plates each being a U-shaped Have guide groove and are arranged opposite and at least one roller on the lower U-shaped turning part is arranged and wherein the guide device in one direction between the guide grooves on both sides of a film guide part are arranged when this moves on the U-shaped path, characterized by connecting the end of a long narrow film with the end of a wider film guide part and by advancing of the film guide part along the defined by the guide grooves Path, wherein the film guide part has a length which is at least equal to the length of the U-shaped Way is. 3 ίJ HH 15 ü I 1 14 3