JPH05341476A - Film developing device - Google Patents

Abstract

PURPOSE:To prevent the unevenness of developing from being caused by the winding inclination of a photographic film. CONSTITUTION:In the cartridge loading part 12 of a film developing device 10, a cartridge holder 44 in which a cartridge 18 housing the negative film 16 taken up in a layer state is loaded, a cutter 54 cutting the trailing edge of the film 16 drawn out from the cartridge 18 and a winding inclination curing part 62 feeding the film 16 to a processing part 38 by interposing and carrying it are provided. In the curing part 62, a nip roller 68 where an endless belt 80 is wound, a heat roller 64 heated by a heater 66 and an auxiliary roller 74 which winds the film 16 round the roller 64 are arranged. Then, the film 16 drawn out from the cartridge 18 is interposed by the rollers 68 and 64 and wound round the roller 64 in a direction opposite to a winding direction in the cartridge 18 by the roller 74. Besides, it is heated by the roller 64 and the winding inclination is cured.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film developing apparatus for drawing a photographed photographic film, which is housed in layers in a cartridge, and taking it out from the cartridge for development processing.

[0002]

2. Description of the Related Art Generally, a negative film that has been photographed is requested to be developed by a customer in a state in which it is wound in layers on a spool in a cartridge. There is a film developing apparatus for developing such a photographed negative film, in which the negative film is loaded in a state of being housed in the cartridge, and the developing process is performed while pulling out the negative film from the cartridge. A so-called strips process is performed in which it is detected that the negative film has been completely drawn out from the cartridge, the end of the negative film is cut, and only the negative film is automatically conveyed. When performing strip processing, a guide member called a short leader is attached to the tip of the negative film in order to reliably convey the negative film in the developing device.The tip of the negative film is guided to this short leader. Thus, the developing treatment and the drying treatment are carried out, and the developing treatment and the drying treatment are performed. This short leader uses a flexible synthetic resin sheet having a slightly higher rigidity than the negative film.

The negative film accommodated in the cartridge can be easily ejected by reversing the spool, and in a film developing machine for strips processing, the cartridge is loaded in the ejected state. It is supposed to do. In order to enable this take-out, the negative film is tightly wound around the spool shaft in the cartridge, and the gap between the wound negative film and the inner wall of the cartridge is reduced. That is, the negative film is wound and accommodated in a narrow space.

By the way, since the negative film is wound on a spool and accommodated in the cartridge, a winding habit may occur. In particular, the lowermost layer (that is, the rear end portion) when wound on the spool has the strongest winding tendency. It is also considered to accommodate a negative film in a small cartridge in accordance with the miniaturization of the camera. The negative film wound around such a cartridge has a stronger curl at the rear end thereof.

At the time of development processing, by attaching a short leader to the tip of the negative film that has been rolled out, the tip of the negative film guides inside the film developing device in a state where the curl is eliminated by the short leader. To be done. However, if the trailing end of the negative film has a curl in a loop shape, when the loop-shaped portion of the negative film is conveyed in the apparatus, it is crushed by the rollers and the negative film bends, It is conceivable that it may cause transport failure such as being caught by the roller. Further, since the trailing edge of the negative film has a loop-shaped curl, there is a problem that uneven development occurs because the developing solution does not circulate and the developing process is not performed.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above facts, and in the strips processing, the film developing apparatus suppresses uneven development by performing the development processing while removing the curl of the photographic film. The purpose is to provide.

[0007]

According to a first aspect of the present invention, there is provided a film developing apparatus in which a photographic film, which has been photographed, is wound up in layers around an axis and is loaded, and the photographic film is pulled out from the patrone. A film developing device for developing in a processing section, in which the photographic film is conveyed while being pulled out from the cartridge and sent to the processing section, and the photographic film conveyed by the conveying means is heated to a predetermined temperature. And a heating straightening means for straightening the curl formed on the photographic film by being heated and wound on the cartridge.

A film developing apparatus according to a second aspect of the present invention is the film developing apparatus according to the first aspect, characterized in that the heating temperature by the heat straightening means is equal to or higher than the glass transition point of the photographic film. ..

A film developing apparatus according to a third aspect of the present invention is the film developing apparatus according to the first or second aspect, wherein a heat roller for bringing the photographic film into contact with the outer peripheral surface and transporting the heat roller as the heat correcting means. It is characterized by having.

A film developing apparatus according to a fourth aspect of the present invention is the film developing apparatus according to the third aspect, wherein the heat roller winds the photographic film in a direction opposite to the winding direction in the cartridge. It is characterized by hanging.

A film developing apparatus according to a fifth aspect of the present invention is the film developing apparatus according to the third or fourth aspect, wherein at least one of the heat roller and the conveying means is in a non-contact state with the photographic film. It is characterized in that a moving means for relatively moving to the standby position is provided.

A film developing apparatus according to a sixth aspect of the present invention is the film developing apparatus according to the fourth or fifth aspect, wherein the conveying path of the photographic film by the conveying means is in a linear direction and to the heat roller. It is characterized in that it has a guide means for selecting and guiding in the winding direction.

[0013]

According to the invention described in claim 1, since the photographic film wound around the shaft of the cartridge has a curling habit, and when the photographic film is pulled out from the cartridge and processed, the rear end portion is particularly curled. This causes not only poor transport within the apparatus but also uneven processing. Therefore, when the photographic film is pulled out from the cartridge, it is heated by the heating correction means. This alleviates the curl that has occurred in the photographic film.

With the curl of the photographic film reduced,
By feeding the photographic film to the processing section, the curl which has been generated in the photographic film does not affect the transportation and processing state of the photographic film in the apparatus.

According to the second aspect of the invention, the temperature at which the photographic film is heated by the heat straightening means is equal to or higher than the glass transition point of the photographic film. Therefore, the curl of the photographic film can be alleviated easily and surely.

It is clear that the photographic film wound in the cartridge has a winding tendency stronger near the axis, that is, at the lowermost rear end portion than at the front end portion. Although it is preferable to give a large amount of heat to a portion having a strong curl, the conveying speed of the photographic film drawn out from the cartridge is generally the same as the conveying speed in the developing processing section. For this reason, it is effective to raise the surface temperature of the heat roller to give a large amount of heat when heating the rear end of the photographic film, rather than heating at the same temperature with the heat roller.

Therefore, the surface temperature of the heat roller may be lowered at the start of winding the photographic film around the heat roller, and may be increased toward the terminal end. That is, a small amount of heat is applied to the leading end of a photographic film having a weak curl, and a large amount of heat is applied to the rear end of a photographic film having a strong curl, and if heat is applied according to the strength of the curl, The curl of photographic film can be corrected efficiently.

According to the third aspect of the present invention, the heat roller is used as the heat correcting means, and the heat roller is brought into contact with the photographic film for heating. The heat roller can easily control the temperature and can heat only the contacting portion, so that the photographic film can be efficiently heated.

According to the fourth aspect of the present invention, when the photographic film is wound around the heat roller, the photographic film is arranged in a direction opposite to the winding direction in the cartridge. That is, since the photographic film is wound around the heat roller in the direction opposite to the curl and heated, the curl of the photographic film can be reliably alleviated.

According to the fifth aspect of the invention, the heat roller can be relatively moved to the non-contact position with respect to the photographic film pulled out from the cartridge. As a result, when a photographic film with no curl or a weak curl is pulled out from the cartridge and processed for development,
The photographic film can be guided without contacting the heat roller, and the photographic film can be prevented from being unnecessarily heated.

According to the sixth aspect of the invention, the conveying path for the photographic film can be selected from a linear conveying path and a conveying path around the heat roller. When a guide member is provided at the tip of the photographic film pulled out from the cartridge, when the guide member passes near the heat roller, it is conveyed linearly, and when the photographic film passes,
It can be wound around a heat roller.

The photographic film drawn out from the cartridge has a weak curl at the leading end and a strong curl at the rear end. Therefore, the curl can be efficiently removed by applying the heat roller to the photographic film by applying it from the intermediate portion where the curl becomes relatively strong to the rear end, or by winding the heat roller around the heat roller. Further, when the guide member is attached to the leading end of the photographic film and is conveyed in the processing apparatus, the guide member can be prevented from being heated.

[0023]

【Example】

[Embodiment 1] FIG. 1 shows a film developing apparatus 10 applied to this embodiment. The film developing apparatus 10 is provided with a cartridge loading section 12 inside a casing 16. The exposed cartridge negative film 16 is wound into the cartridge loading section 12 and accommodated in the cartridge 1.
8 can be loaded. In the film developing apparatus 10, the cartridge 18 is loaded by opening the loading lid 24 of the casing 16.

The negative film 16 is pulled out from the cartridge 18 and fed from the cartridge loading section 12. Negative film 16 sent from the cartridge loading section 12
Is nipped and conveyed by the roller pair 30 and sent to the processing unit 38 in the film developing apparatus 10.

The processing section 38 on the downstream side of the roller pair 30 includes a developing tank 32 for storing a developing solution and a fixing tank 3 for storing a fixing solution.
4 and a washing tank 36 that stores water. Negative film 16 sandwiched by roller pair 30
Are sent into the developing tank 32. A plurality of roller pairs (not shown) are arranged in each processing tank, and the negative film 16 is nipped and conveyed by these roller pairs, and the developing tank 32, the fixing tank 34, and the washing tank 36 are sequentially arranged. Be transported. As a result, the negative film 16 is immersed in the liquid in each processing tank, and the development, fixing, and water washing treatments are continuously performed.

A drying unit 40 is provided on the downstream side of the water washing tank 36, and the negative film 16 that has undergone the water washing process is sent to the drying unit 40. In the drying unit 40, the negative film 16 moistened with the treatment liquid is dried by warm air, and the negative film 16 that has been dried is dried.
Is discharged from the discharge port 42 of the casing 16 to the outside of the film developing apparatus 10.

The cartridge loading section 12 shown in FIGS. 2 to 4 will now be described. This cartridge loading unit 12
Is opened and closed by the loading lid 24 of the casing 16 as described above, and is shielded from light when the loading lid 24 is closed so that the negative film 16 pulled out from the cartridge 18 is not exposed.

As shown in FIG. 2, a long arm-shaped cartridge holder 44 is arranged in the cartridge loading section 12. The cartridge holder 44 has a longitudinal direction provided in the vertical direction (vertical direction in the drawing of FIG. 2), and a lower end portion of the shaft 4 protruding from a side plate (not shown).
6 is rotatably supported. Patrone holder 44
A concave portion 48 is formed at the upper end (above the plane of FIG. 2) of the cartridge so as to match the outer periphery of the cartridge 18. The cartridge 18 in which the negative film 16 having been photographed is wound around the spool 18A in a layered manner and housed is mounted in the recess 48. At this time, the negative film 16 is accommodated in the cartridge 18 while being wound on the spool 18A counterclockwise when viewed from the front side of FIG. 2, and the film outlet 18B of the cartridge 18 is substantially horizontal. Downstream side (right side of Figure 2)
Is being directed to.

The cartridge holder 44 is attached with the other end of a tension coil spring 50, one end of which is locked to a side plate (not shown).
The negative film 16 is urged in the direction opposite to the pull-out direction of the negative film 16. The cartridge holder 44 is kept in a substantially vertical state by being prevented from being rotated by a biasing force by a stopper (not shown). In addition, the cartridge holder 44
Is the shaft 46 against the biasing force of the tension coil spring 50.
The negative film 16 can be rotated around the center in the drawing direction.

The cartridge 18 loaded in the cartridge loading section 12 is the negative film 1 pulled out with the tip of the negative film 16 inside being slightly pulled out.
A short leader 52 for guiding the negative film 16 in the film developing device 10 along the conveyance path is attached to the front end of 6. The short leader 52 is a flexible synthetic resin sheet having a slightly higher rigidity than the negative film 16, and is reliably conveyed by a plurality of rollers in the film developing device 10. It should be noted that the short leader 52 is provided with rectangular holes along the carrying direction, the teeth of the sprockets coaxially arranged on the rollers are inserted into these rectangular holes, and the inside of the device is carried by the rotation of the sprockets. You may do it.

A cutter 54 is arranged downstream of the cartridge holder 44. The cutter 54 includes an upper blade 54A, a lower blade 54B, and a solenoid 56 that drives the upper blade 54A. Negative film 16
Is inserted and guided between the upper blade 54A and the lower blade 54B. The lower blade 54B is fixed, and the upper blade 54B
A is moved downward by driving the solenoid 56 and cuts the negative film 16 with the lower blade 54B.

Further, a limit switch 58 for opening and closing the contact by swinging the contact arm 58A is disposed at an intermediate position in the vertical direction of the cartridge holder 44. The contact arm 58A of the limit switch 58 faces a stopper 60 arranged on the cartridge holder 44.

Therefore, the negative film 16 is completely pulled out from the cartridge 18 and the cartridge 18 is pulled by the negative film 16, and the cartridge holder 44
Is rotated about the shaft 46 in the drawing direction of the negative film 16 against the biasing force of the tension coil spring 50,
The stopper 60 moves in the direction away from the contact arm 58A, and the contact of the limit switch 58 is switched. The solenoid 56 of the cutter 54 is operated by switching the contact of the limit switch 54 to cut the negative film 16.

On the downstream side of the cutter 54, the curl correction portion 6
2 are provided. In this curl correction section 62, two heat rollers 64 serving as heating correction means are arranged above the negative film 16 with a conveyance path interposed therebetween. These heat rollers 64 are rotatably supported by a side plate (not shown), and a heater 66 that uniformly heats the heat roller 64 along its axial direction is provided on each outer peripheral surface.

As shown in FIG. 3, the curl correction section 62 is also provided.
A nip roller 68 serving as a conveying means for the negative film 16 is disposed below each heat roller 64 so as to face the conveying path of the negative film 16. These nip rollers 68 are rotatably supported by a bracket 70. The bracket 70 is connected to a plunger 72A of a solenoid 72 which is disposed below the bracket 70 and serves as moving means, and the nip roller 68 is moved in the contact direction of the heat roller 64 by driving the solenoid 72. A state in which the nip roller 68 is close to the heat roller 64 (see FIG. 2).
(Indicated by a solid line in FIG. 3), the negative film 16 can be held between the nip roller 68 and the heat roller 64.

As shown in FIG. 2, an endless belt 80 is wound around each of the two nip rollers 68. The endless belt 80 is also wound around a tension roller 82 arranged below the bracket 70. The tension roller 82 is rotatably supported by the tension arm 84.
Has one end rotatably supported by a side plate (not shown).

At the intermediate portion of the tension arm 84,
One end of a tension coil spring 86 attached to the bottom plate 12A of the cartridge loading section 12 is connected. Due to the biasing force of the tension coil spring 86, a constant tension is applied to the endless belt 80 regardless of the vertical movement of the nip roller 68. A driving force is transmitted to the endless belt 80 from a driving unit (not shown), and the driving force causes the endless belt 80 to rotate together with the nip roller 68.

When the negative film 16 is sandwiched between the heat roller 64 and the nip roller 68, the endless belt 8
When 0 is driven, the nip roller 68 is rotated and the heat roller 64 is rotated following the rotation of the nip roller 68 to nip and convey the negative film 16. Further, in the state where the nip roller 68 is separated from the heat roller 64 (shown by the chain double-dashed line in FIG. 3), the negative film 16 is conveyed by the rotation of the nip roller 68 without contacting the heat roller 64.

The heater 66 is the preheated state of the heat roller 6
4 is heated to the glass transition point of the negative film 16, and when the negative film 16 is nipped and conveyed between the nip roller 68 and the nip roller 68, before the rear end of the negative film 16 passes. The surface temperature of the heat roller 64 is raised. Negative film 16
By being in contact with the heat roller 64, the heat is heated by heat conduction from the heat roller 64.

Between the two nip rollers 68, an auxiliary roller 74 serving as a guide means is arranged. As shown in FIG. 4, the auxiliary roller 74 is rotatably supported by a bracket 76, and the bracket 76 is provided with a plunger 78 of a solenoid 78 arranged substantially upward.
It is connected to the tip of A. Therefore, the solenoid 78
Drive the auxiliary roller 74 to the initial position of the position between the two nip rollers 68 (shown by the chain double-dashed line in FIG. 4).
To a position between the two heat rollers 64 (shown by the solid line in FIG. 4). That is, by moving the auxiliary roller 74, it is possible to switch between a conveyance path for linearly conveying the negative film 16 and a conveyance path for winding the negative film 16 around the heat roller 64 for conveyance.

As shown in FIG. 3, the solenoid 72,
Before the curl correction of the negative film 16 is performed, 78 separates the nip roller 68 from the heat roller 64 (shown by a chain double-dashed line) and makes the auxiliary roller 74 stand by between the nip rollers 68. In this state, the short leader 52 is driven by driving the endless belt 80.
Also, the negative film 16 can be conveyed without contacting the heat roller 64.

As shown in FIG. 2, the negative film 16 pulled out from the cartridge 18 and given the carrying force by the curl correction unit 62 is fed out from the insertion port 88 and inserted into the processing unit 38. A guide 90 is arranged between the insertion opening 88 and the curl correction portion 62, and the curl correction portion 6 is provided.
Surely insert the negative film 16 sent from
It will guide you to 8. A reader sensor 92 is arranged below the guide 90. The leader sensor 92 detects that the short leader 52 attached to the tip of the negative film 16 passes over the guide 90.

Incidentally. Negative film 1 in the curl correction unit 62
The conveyance speed of 6 is the same as the conveyance speed of the negative film 16 in the processing section 38, so that the negative film 16 sent from the cartridge loading section 12 to the processing section 38 does not have unnecessary tension or slack. ing.

FIG. 5 shows a part of the control unit 94 of the film developing apparatus 10. The control unit 94 includes a controller 96 configured by connecting a CPU, a ROM, a RAM, an I / O port and the like (not shown) by a bus. This controller 96 includes solenoids 56, 7
2, 78 and heater 66 are drivers 98A, 98B, 98
The limit switch 58 and the reader sensor 92 are connected via C and 98D, and the solenoids 56, 72 and 78 are driven according to the input signals from these.

Further, an operation mode selection switch 99 is connected to the controller 96 so that it can be selected whether or not the negative film 16 drawn from the cartridge 18 is sent to the processing unit while the curl is corrected. Is becoming

Next, the operation of this embodiment will be described. In the film developing apparatus 10, the loading lid 24 forming a part of the casing 16 is opened, and the cartridge 18 in which the negative film 16 having been photographed is wound is loaded in the cartridge loading portion 12.

At this time, the leading end of the negative film 16 is slightly pulled out from the cartridge 18, and the short leader 52 is attached to the leading end of the pulled negative film 16. Patrone 1 in the cartridge loading section 12
After loading 8, the processing of the film developing device 10 is started. This film developing device 10 is equipped with a cartridge 18
While pulling out the negative film 16 from the
The negative film 16 is developed by the processing unit 38 and the drying unit 40.

The operation of the cartridge loading section 12 for drawing the negative film 16 out of the cartridge 18 will be described with reference to the flowchart shown in FIG. The curl correction process routine is executed when the curl correction process of the negative film 16 is selected by the operation mode selection switch 99, and the negative film 16 accommodated in a small cartridge is used.
Alternatively, it is executed when developing the negative film 16 having a strong curl, such as the long negative film 16 being strongly wound in the cartridge 18.

When the curl correction process is selected, first, at step 100, the heater 66 heats the heat roller 64.
The initial position (standby position) in which the auxiliary roller 74 is disposed between the nip rollers 68 while the nip roller 68 is separated from the heat roller 64 while being heated (preheated).
Is set (shown in FIG. 3). The heating of the heat roller 64 by the heater 66 changes the surface temperature of the heat roller 64 by
For example, the glass transition point of the negative film 16 is maintained.

At the next step 102, the driving means (not shown) is operated to drive the endless belt 80 to start the conveyance of the negative film 16. That is, by driving the endless belt 80, the conveyance of the short leader 52 attached to the tip of the negative film 16 is started, and the negative film 16 is sequentially drawn out from the cartridge 18.

In the next step 104, the curl correction unit 62
The reader sensor 92 detects whether the short leader 52 that has been conveyed passes through the guide 90. When the short leader 52 has passed over the guide 90, the short leader 52 has passed through the curl correction portion 62 and the negative film 1
The leading end of 6 is in a passing state.

When the leader sensor 92 detects the passage of the short leader 52, the solenoid 72 is driven to bring the nip roller 68 closer to the heat roller 64 (step 1).
06). As a result, the leading edge of the negative film 16 is nipped by the heat roller 64 and the nip roller 68, and a conveying force is applied. The heat roller 64 heats the negative film 16 in contact with the heat of the surface.

In the next step 108, the solenoid 78
Is driven to move the auxiliary roller 74 upward to position it between the heat rollers 64 (state shown in FIGS. 2 and 4).
As a result, the negative film 16 sandwiched between the heat roller 64 and the nip roller 68 is wound around the heat roller 64, and the negative film 16 is in contact with the heat roller 64 for a long time and is reliably heated. .. The winding direction of the negative film 16 around the heat roller 64 is opposite to the winding direction of the negative film 16 inside the cartridge 18. That is, the negative film 16 is wound around the heat roller 64 and heated so that the negative film 16 has an opposite curl.

In the next step 110, the surface temperature of the heat roller 64 is gradually raised by the heater 66.
Alternatively, this step may be skipped and heating at a constant temperature.

The negative film 16 is heated and conveyed while being wound around the heat roller 64 in the curl correction section 62 in the direction opposite to the curl direction. Therefore, the negative film 16
The curl that has occurred in (1) is reliably removed and sent to the processing unit 38. Further, since the negative film 16 is sandwiched after the short leader 52 attached to the tip of the negative film 16 has passed, the short leader 52 is not unnecessarily heated. Further, even when the nip roller 68 and the auxiliary roller 74 move, the tension roller 82 applies a constant tension to the endless belt 80, and only the endless belt 80 does not run idle.

In step 112, the limit switch 58 detects whether the negative film 16 has been completely drawn out from the cartridge 18. When the negative film 16 is completely drawn out from the cartridge 18, the negative film 16
Is conveyed by the curl correction section 62, so that the cartridge 18 is pulled in the direction in which the negative film 16 is pulled out.
When the cartridge 18 is pulled by the negative film 16, the cartridge holder 44 rotates around the shaft 46 in the pull-out direction of the negative film 16 against the biasing force of the tension coil spring 50. By the rotation of the cartridge holder 44, the contact of the limit switch 58 is switched and the cutter 54 is operated (step 11).
4).

The operation of the cutter 54 is performed by driving the solenoid 56 so that the upper blade 54A moves downward to move the lower blade 54B.
The negative film 16 which faces between and is cut. As a result, the negative film 16 is separated from the cartridge 18, and only the negative film 16 is conveyed by the curl correction unit 62 and sent to the processing unit 38.

In the next step 116, the negative film 1
Check if sending out of 6 is completed. This is to determine whether or not the trailing edge of the negative film 16 cut by the cutter 54 has passed through the guide 90 and has been fed into the processing section 38 from the insertion port 88 after a predetermined time has elapsed after the cutter 54 has been operated. You can

The trailing edge of the negative film 16 is the curl correction portion 62.
When passing through the heat roller 64 by the heater 66
Since the surface temperature of is increased, it is heated at the highest temperature. Therefore, the strong curl generated at the rear end of the negative film 16 can be surely removed. The surface temperature of the heat roller 64 is set to a temperature that does not affect the latent image recorded on the negative film 16 (maximum heating temperature 130 ° C).

When the feeding of the negative film 16 is completed, the heating of the heat roller 64 by the heater 66 is suppressed to the preheating state, the nip roller 68 is separated from the heat roller 64, and the auxiliary roller 74 is returned between the nip rollers 64. (Step 118), the drawing of the negative film 16 by the curl correction process is completed.

The negative film 16 pulled out from the cartridge 18 and passed through the curl correction unit 62 and sent to the processing unit 38 is sequentially conveyed in the developing tank 32, the fixing tank 34, and the washing tank 36, and the developing solution is developed. Then, it is developed by being immersed in a fixing solution and washing water. The negative film 16 developed in the processing unit 38 is sent to the drying unit 40. In the drying unit 40, the negative film 16 moistened with the treatment liquid is blown with warm air to be dried and discharged from the discharge port 42 to the outside of the film developing apparatus 10.

In the processing section 38 and the drying section 40, the negative film 16 is conveyed by rollers, but the curl correction section 62 is used.
Since the curl of the negative film 16 is removed in step 1, the negative film 16 is not conveyed badly. In particular,
Since the curl is surely removed by applying high heat to the rear end of the negative film 16, the developing solution does not sufficiently wrap around to the rear end of the negative film 16. Therefore, the negative film 16 does not have a defective finish such as uneven development.

Next, when processing the negative film 16 to the extent that the curl does not affect the development processing, the normal processing mode can be selected by the operation mode selection switch 99. In the normal process, the endless belt 80 is driven to convey the negative film 16 without the nip roller 68 approaching the heat roller 64. As a result, the negative film 16 can be sent to the processing unit 38 without being unnecessarily heated by the heat roller 64. At this time, the heater 66 may not operate.

The operation mode selection switch 99 is used to correct the curl of the negative film 16, but the size of the cartridge 18 mounted on the cartridge holder 44, the length of the negative film 16 and the like are determined. A detection sensor or the like is provided so that the strength of the curl can be determined from the length of the mounted cartridge 18 and the negative film 16 wound inside and the processing mode can be automatically selected. You can

Further, the heat roller 64 is controlled so that the surface temperature thereof exceeds the glass transition point in the vicinity of the rear end of the negative film 16 having a strong curl (for example, about 70 ° C. to 130 ° C.). You may do it.

[Second Embodiment] Next, a second embodiment of the present invention will be described. The second embodiment has basically the same configuration as that of the first embodiment, and the same parts as those of the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

In FIG. 7, the curl correction unit 12 according to the second embodiment.
Part of 0 is shown. In this curl correction unit 120,
A plurality of pairs (for example, two pairs) of nip rollers 68 and idle rollers 122 form a conveying path for sandwiching and conveying the negative film 16, and the endless belt 80 is driven to sandwich and convey the negative film 16. A heat roller 124 is arranged between the idle rollers 122 above the conveyance path. With this heat roller 124,
The heater 126 provided coaxially with the shaft core is the heat roller 1.
The outer peripheral portion of 24 is heated.

The heat roller 124 is composed of the negative film 16
When the negative film 16 is positioned above the transport path (shown by the chain double-dashed line in FIG. 6), the negative film 16 is not contacted. It is designed to move (shown by the solid line in FIG. 6).

In the curl correction section 120, when the curl of the negative film 16 is corrected, the heat roller 124 is moved between the nip rollers 68 after the leading edge of the negative film 16 has passed. As a result, the negative film 16
It is conveyed while being wound around the outer peripheral surface of the heat roller 124 between the nip rollers 68. The winding direction of the negative film 16 around the heat roller 124 is opposite to the winding direction inside the cartridge 18.

Therefore, by the curl correction unit 120,
Negative film 16 conveyed while being curl correction
Is wound around the heat roller 124 in the direction opposite to the curl direction and heated and conveyed. With this, the negative film 1
It is possible to surely remove the winding habit generated in No. 6.

In addition, in the curl correction unit 120, when the curl correction of the negative film 16 is not performed, the heat roller 1
It is only necessary to move 24 between the idle rollers 122 and separate it from the conveyance path of the negative film 16, and the curl correction process can be easily switched to the normal process.

In the first and second embodiments, the film developing apparatus 10 has the heat roller 6 as the heating correction means.
Although the No. 4 and 124 are applied and the negative film 16 is directly heated by the heat rollers 64 and 124, it may be indirectly heated. For example, as shown in FIG. 8, an endless heating belt 128 is wound around two heat rollers 124 arranged along the conveying path of the negative film 16, and the heating belt 128 is heated by the heat rollers 124. The negative film 16 is linearly sandwiched between the heating belt 128 and the endless belt 80. In this way, the curl generated in the negative film 16 may be removed.

Further, the film developing apparatus 10 applied to this embodiment does not limit the structure of the photographic film developing apparatus to which the present invention is applied, and heats the photographic film while automatically pulling it out from the cartridge by the conveying means. It is sufficient that the curl generated in the photographic film is corrected while being heated by the correction means, and then the photographic film is continuously developed. Further, a print processing device such as a printer processor is arranged on the downstream side of the film developing machine 10 so that the images recorded on the negative film 16 for which development processing has been completed are continuously printed on photographic paper or the like. You can

[0074]

As described above, in the film developing apparatus according to the present invention, since the conveying means and the heat correcting means are integrally provided, the curl habit is corrected while the photographic film is pulled out from the cartridge, and the development processing is performed. You can Therefore, even when the cartridge is directly loaded, the excellent effect of preventing uneven development of the photographic film caused by the curl can be obtained.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a film developing machine according to the present embodiment.

FIG. 2 is a schematic configuration diagram showing the vicinity of a cartridge loading section of the film processing apparatus according to the first embodiment of the present invention.

FIG. 3 is a schematic side view showing the configuration of a curl correction unit according to the first embodiment.

FIG. 4 is a schematic side view showing the configuration of a curl correction unit according to the first embodiment.

FIG. 5 is a schematic block diagram of a cartridge loading section according to the first embodiment.

FIG. 6 is a flowchart showing the operation of the cartridge loading section according to the first embodiment.

FIG. 7 is a schematic configuration diagram showing a curl correction unit according to a second embodiment.

FIG. 8 is a schematic configuration diagram showing a modification of the curl correction unit.

[Explanation of symbols]

 10 film developing device 12 cartridge loading section 38 processing section 16 negative film (photographic film) 18 cartridge 62, 120 curl correction section 64, 124 heat roller (heating correction means) 66, 126 heater (heating correction means) 68 nip roller (transportation) Means) 72 solenoid (moving means) 74 auxiliary roller (guide means) 80 endless belt (conveying means)

Claims (6)

[Claims] 1. A film developing device for loading a photographed photographic film into a layered structure around an axis, pulling out the photographic film from the cartridge, and developing the photographic film in a processing section. Conveying means for conveying while feeding out to the processing section while pulling out from the patrone, and heating the photographic film conveyed by the conveying means to a predetermined temperature to cause the photographic film to be wound on the patrone. And a heating straightening device for straightening the curl. 2. The film developing apparatus according to claim 1, wherein the heating temperature of the heating correction means is equal to or higher than the glass transition point of the photographic film. 3. The film developing apparatus according to claim 1 or 2, further comprising a heat roller as the heating and straightening means for bringing the photographic film into contact with an outer peripheral surface of the photographic film for conveyance. 4. The film developing apparatus according to claim 3, wherein the heat roller winds the photographic film in a direction opposite to a direction in which the photographic film is wound in the cartridge. 5. The film according to claim 3, wherein at least one of the heat roller and the transporting unit is provided with a moving unit that relatively moves to a standby position where the heat roller and the conveying unit are not in contact with the photographic film. Development device. 6. The transporting path of the photographic film by the transporting means includes guide means for selectively guiding in a linear direction and a winding direction around the heat roller. Film developing equipment.