JPH086168A - Film carrier - Google Patents

Abstract

PURPOSE:To smoothly house photographic film pulled out from a cartridge in spite of the curling tendency of the photographic film. CONSTITUTION:The film housing part 34 of a negative carrier is provided with a spool shaft 86 rotated by driving force transmitted from a winding motor 100 through a rotary shaft 104 and winding negative film 20 pulled out from the cartridge. The rotation of the rotary shaft 104 is transmitted to the spool shaft 86 through a coil spring 116 frictionally engaged between a boss 114 and the boss 110 of a flange part 112 integrally rotating with the rotary shaft 104 by pressing force. Then, when force in the film pulling out direction is applied to the spool shaft 86 by the tension of the negative film 20, the relative rotation of the spool shaft 86 in the film puling direction is made possible to the rotary shaft 104 by loosening the coil spring 116 and lowering frictional force, so that the negative film 20 is wound on the spool shaft 86 without causing tightening and loosening.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film carrier for drawing an image on a photographic film provided in a photographic printer or the like and wound in a cartridge to print an image.

[0002]

2. Description of the Related Art A photographic film (for example, a negative film) that has been photographed is taken out to a developing station while being wound in a case such as a cartridge. At the photo lab, the negative film wound on the cartridge is pulled out and developed, and the piece negative cut into predetermined image frames (for example, every 6 frames) is put in a negative sheet and returned to the customer.

When a photographic print is obtained by printing an image recorded on a piece negative, the piece negative is mounted on a film carrier to position the piece negative image frame at a predetermined position, and the light source is irradiated to transmit the piece negative image frame. Then, the light is made to form an image on the photographic paper and printed on the photographic paper or the like.

In recent years, cartridges (hereinafter referred to as "cartridges") without cutting a negative film that has been developed
The method of winding up and returning is considered. By not cutting the negative film as a piece negative, it is possible to record information such as shooting information and printing information on the negative film, and read the information recorded on the negative film and use it for the next print processing. It is also possible to do.

By the way, the negative film wound up in the cartridge and accommodated therein has a certain curl. Therefore, when the negative film is mounted on the film carrier and reprinted, the negative film pulled out from the cartridge is entangled due to the curl and is damaged, or the negative film after printing is rewound to the cartridge. At times, it may not be possible to smoothly rewind the film, which may cause the negative film to be bent or the like.

For this reason, there has been proposed a film carrier provided with a film accommodating portion for accommodating a negative film drawn out from a cartridge by winding it on a take-up shaft. In this film carrier, the negative film pulled out from the cartridge is wound around a winding shaft provided in the film accommodating portion, and the winding shaft is rotated by a motor or the like so that the negative film is wound in layers to form a negative film. It prevents the entanglement due to the curl.

[0007]

However, in the above film carrier, the negative film is repeatedly conveyed and stopped for printing work. For this reason, the conveying speed of the negative film fed to the film accommodating portion is not constant, and the diameter of the winding shaft changes when the negative film winds around, and the peripheral speed also changes, so it is difficult to control and synchronize the motors. . If the take-up speed of the negative film on the take-up shaft is not adjusted to the feeding speed at which the negative film is fed, looseness and tightening will be repeated on the taken-up negative film, and the negative film taken up on the take-up shaft will be There is a problem that the surfaces rub against each other and damage the surfaces.

Further, if the peripheral speed at which the take-up shaft winds the negative film becomes faster than the speed at which the negative film is fed, the fed negative film is pulled, and the conveyance accuracy of the negative film is deteriorated. Of course, it becomes impossible to accurately align the image frame with the predetermined print position.

The present invention has been made in consideration of the above facts, and has a simple structure and can be wound up and accommodated uniformly without damaging the surface of the photographic film or impairing the conveying accuracy of the photographic film, and smoothly. An object is to provide a film carrier that enables an exposure operation.

[0010]

In the film carrier according to claim 1 of the present invention, a cartridge containing a photographic film wound in layers on a take-up shaft is mounted in a cartridge mounting portion, and a photo is taken from this cartridge. While pulling out the film, the film is conveyed on the pedestal portion by the conveying means, the image frames recorded on the photographic film are sequentially arranged at predetermined printing positions, and the film accommodating portion provided on the opposite side of the cartridge loading portion with the pedestal portion interposed therebetween A film carrier that is wound around and stored in a spool, wherein the film storage section guides the spool shaft for winding the photographic film and the photographic film fed by the conveying means toward the peripheral surface of the spool shaft. Guide means for wrapping around a shaft, drive means capable of rotationally driving the spool shaft at a predetermined speed, and the drive hand. And having a drive force transmission means for transmitting the driving force of the driving means to the spool shaft in accordance with the conveying speed of the conveying means provided between the spool shaft and.

A film carrier according to a second aspect is the film carrier according to the first aspect, wherein the driving force transmitting means is rotated by the driving means and is rotatable relative to the spool shaft. Urging means for applying a predetermined frictional force between the rotating shaft and the spool shaft to transmit the rotating force.

A film carrier according to a third aspect is the film carrier according to the second aspect, wherein the urging means applies a rotational force of a predetermined amount or more to the spool shaft in a direction opposite to the film winding direction. In addition, the spool shaft is rotatable relative to the rotation shaft in a direction opposite to a winding direction of the photographic film.

[0013]

In the film carrier according to the first aspect of the present invention, the photographic film drawn out from the cartridge is wound around the spool shaft by the guide means of the film accommodating portion, and the spool shaft is rotated by the driving means to photograph the spool shaft. Take up the film. The photographic film wound on the spool shaft can be withdrawn from the film storage portion and rewound into the cartridge by rotating the spool shaft in a direction opposite to the winding direction.

The spool shaft is adapted to transmit the driving force of the driving unit by the driving force transmitting unit when the photographic film is wound up.
Rotational force is transmitted to the spool shaft so that the tension of the photographic film wound around the spool shaft is constant, and the photographic film can be wound without causing slack.

According to the film carrier of claim 2,
A frictional force is generated between the rotating shaft and the spool shaft by the urging means. This frictional force decreases against the urging force of the urging means when a predetermined tension is generated on the photographic film wound around the spool shaft due to the difference in the peripheral speed of the spool shaft and the conveying speed of the photographic film, and this frictional force decreases. As a result, the rotation speed of the spool shaft decreases. When the tension of the photographic film becomes less than a predetermined value, the frictional force increases due to the urging force of the urging means, and the spool shaft rotates following the rotation of the rotating shaft.

Thus, the photographic film can be wound around the spool shaft while preventing the photographic film from being tightened or loosened.

In the film carrier according to the third aspect of the present invention, a tension larger than the frictional force generated between the spool shaft and the rotating shaft by the urging force of the urging means acts on the photographic film wound around the spool shaft. Due to this tension, the spool shaft rotates relative to the rotation shaft in the direction opposite to the winding direction of the photographic film (drawing direction) against the frictional force.
As a result, the photographic film is uniformly wound around the spool shaft without causing slack in the wound photographic film.

When the photographic film wound on the spool shaft is wound on the cartridge, the spool shaft is easily rotated by the photographic film in the pull-out direction.

As a structure of such a driving force transmitting means, for example, a coil spring is wound around each of a boss integrally formed on a rotary shaft and a boss integrally formed on a spool shaft, and each boss is urged by the coil spring. It is possible to apply a simple configuration in which a predetermined frictional force is generated between each boss and the coil spring, and the rotation shaft and the spool shaft can be integrally rotated by this frictional force. At this time, the coil spring is arranged coaxially with the rotary shaft, the spool shaft, and the respective bosses.

At this time, if the winding direction of the coil spring viewed from the spool shaft side is the opposite direction to the winding direction of the photographic film on the spool shaft, the spool shaft is predetermined by the tension of the photographic film in the opposite direction to the winding direction. When the coil spring is pulled by the above force, that is, a force larger than the biasing force of the coil spring, the coil spring is loosened and the frictional force between the boss and the boss is reduced. Relative rotation is possible in the drawing direction of the photographic film.

[0021]

1 shows a negative carrier 10 which is a film carrier according to the present invention, and FIG. 2 shows a negative carrier 1.
0 shows the appearance of the printer processor 12 provided with 0. As shown in FIG. 2, the casing 14 of the printer processor 12 is provided with a work table 16 protruding in the horizontal direction, and the negative carrier 10 is arranged on the work table 16.

The printer processor 12 positions an image frame of a developed photographic film (hereinafter referred to as "negative film 20", see FIG. 3) at a predetermined position of the negative carrier 10 and a light source below the work table 16. The light emitted from the section 22 and transmitted through the negative film 20 of the negative carrier 10 is imaged on the photographic printing paper drawn from the paper magazine 18 to a predetermined position of the printing section 24 in the casing 14 for printing. After printing, the photographic paper is the casing 1
After being conveyed through the inside of the apparatus 4, a series of processes including color development, bleach-fixing, washing with water and drying are performed, and further, each printed image frame is cut and discharged as a photographic print to the sorter 26 or the like.

FIG. 1 shows a negative carrier 10 applied to this embodiment. This negative carrier 10 has a base 2
8, an opening / closing cover 30 for covering the upper part of the base 28, a cartridge loading section 32 and a film accommodating section 34 arranged on both sides of the base 28. Further, on the pedestal 28, a plurality of pairs of conveying rollers 36, 3 forming a conveying path for the negative film 20 between the cartridge loading section 32 and the film accommodating section 34.
8 are provided.

As shown in FIG. 3, the transport rollers 36,
Each of the transfer rollers 38 faces the end of the negative film 20 in the width direction and is connected by the shaft 40 so that part of the outer peripheral portions of the transport rollers 36, 38 is exposed on the pedestal 28 (see FIG.
Then, the transport path 42 for the negative film 20 between the cartridge loading section 32 and the film accommodating section 34 is formed.

As shown in FIG. 1, the opening / closing cover 30
1 is configured so as to cover the upper surface of the pedestal 28 by swinging up and down around an end portion on the front side of the paper surface of FIG. 1 by a hinge (not shown) (closed state). Further, the open / close cover 30 includes an idle roller 4 facing each of the transport rollers 36 and 38.
4, 46 (see FIG. 3) are provided, and the opening / closing cover 3 is provided.
By closing 0, both ends of the negative film 20 in the width direction can be held between the transport rollers 36 and 38 and the idle rollers 44 and 46.

A carrier motor 48 is provided on the pedestal 28 of the negative carrier 10. As shown in FIG. 3, the drive shaft 48A of the carry motor 48 and the carry roller 3
An endless belt 50 is wound around the shafts 40 of the Nos. 6 and 38, and the driving force of the carry motor 48 is transmitted to the carry rollers 36 and 38 by the endless belt 50. Conveyor rollers 36, 38 and idle roller 4
The negative film 20 is directed from the cartridge loading section 32 to the film accommodating section 34 on the pedestal 28 by transmitting the driving force of the transport motor 48 while the negative film 20 is sandwiched between the Nos. 4 and 46 (see FIG. 3). It is accurately conveyed in the direction of arrow A) and from the film accommodating section 34 toward the cartridge loading section 32.

On the other hand, as shown in FIG. 1, the cartridge loading section 32 includes a negative film 20 inside the housing 52.
The cartridge 54 which is wound and accommodated is mounted. At this time, the rotation shaft 58 is connected to the winding shaft 56 (see FIG. 3) of the cartridge 54. A motor 60 is provided in the housing 52, and an endless timing belt 66 is provided between a pulley 62 provided on a drive shaft 60A of the motor 60 and a pulley 64 provided on a rotary shaft 58. It is wrapped around.

Therefore, the driving force of the motor 60 is transmitted to the take-up shaft 56 of the cartridge 54, and the take-up shaft 56 sends the negative film 20 out of the cartridge 54 (the direction of arrow B in FIG. 3) and the negative film 20. In the winding direction (the direction opposite to the arrow B). Further, the rotational force of the motor 60 is accurately transmitted to the winding shaft 56 by the timing belt 66 so that a desired amount of the negative film 20 can be pulled out from the cartridge 54 and wound into the cartridge 54.

The negative film 20 is wound around the cartridge 54 with the emulsion surface side facing downward. When the negative film 20 is pulled out from the cartridge 54, the emulsion surface is on the upper surface side of the pedestal 28. Is suitable for. Further, a clutch mechanism or the like may be provided between the motor 60 and the winding shaft 56 in order to match the rotation of the winding shaft 56 with the conveyance speed of the negative film 20 by the conveying rollers 36, 38.

As shown in FIG. 1, the pedestal 28 is formed with a printing opening 68 at the center of the transport path 42. The printer processor 1 described above is provided in the opening 68.
Light is emitted from the second light source unit 22. In addition, one end of the opening / closing cover 30 is rotatably attached to the opening / closing cover 30 and has an opening 72 facing the opening 68 of the pedestal 28.
There is provided a negative pressure bonding plate 70 on which is formed. Also,
The pedestal 28 is provided with a solenoid 74 that attracts the negative pressure plate 70 by a magnetic force when energized.

Normally, the negative pressure plate 70 is provided with the opening / closing cover 30.
When the solenoid 74 is energized with the opening / closing cover 30 closed, the solenoid 74 is attracted to the pedestal 28.
The periphery of the opening 68 of the pedestal 28 and the opening 72 of the negative pressure bonding plate 70
The negative film 20 on the conveyance path 42 is sandwiched between the negative film 20 and the peripheral edge of the negative film 20.

On the pedestal 28, a light source for a detection sensor of the perforation 20A (see FIG. 3) formed at the end of the negative film 20 in the width direction between the opening 68 and the cartridge loading section 32 on the transport path 42. 76 (eg LED etc.)
The opening / closing cover 30 is provided with a perforation detection sensor (not shown) facing the light source 76 in a closed state.

In the negative carrier 10, it is possible to accurately detect the position of the image frame recorded on the negative film 20 from the perforation 20A provided corresponding to each image frame of the negative film 20 passing on the conveying path 42. You can do it. As a result, in the negative carrier 10, the negative film 20 is conveyed at a constant speed, each image frame is accurately aligned with the position facing the opening 68, and the image of the negative film 20 is sandwiched by the negative pressure plate 70. The top can be held between the opening 68 and the opening 72.

In this state, light is emitted from the light source section 22 of the printer processor 12 to the opening 68, and this light passes through the image frame of the negative film 20, and the opening 72 is opened.
Through an opening (not shown) formed in the opening / closing cover 30, and an image is formed on the printing paper of the printing unit 24. As described above, in the negative carrier 10, the negative film 20 is pulled out from the cartridge 54 while being repeatedly conveyed at a constant speed and stopped.

It should be noted that the pedestal 28 has transport rollers 36, 3
8, a plurality of backup rollers 78 are provided, and the opening / closing cover 30 is provided with a magnetic recording head or a magnetic reading head (not shown) facing the respective backup rollers 78. These magnetic recording heads and magnetic reading heads face a magnetic tape portion (not shown) on which magnetic information can be recorded, at both end portions in the width direction of the negative film 20, and when the negative film 20 is conveyed, The magnetic information recorded on the negative film 20 can be read and the magnetic information can be recorded on the negative film 20 as needed.

On the other hand, the cartridge loading portion 32 of the pedestal 28
A film accommodating case 82 (see FIG. 5) is provided in the housing 80 in the film accommodating portion 34 provided on the opposite side to the conveying path 42 of the pedestal 28 of the housing 80.
The negative film 20 conveyed on the pedestal 28 is fed from the opening 84 provided on the side.

As shown in FIG. 5, the inner surface of the film accommodating case 82 is curved so that the cross section of the negative film 20 on the pedestal 28 along the conveying direction (the direction of arrow A in FIG. 5) becomes substantially cylindrical. The outer peripheral portion extends toward the opening 84. A spool shaft 86 whose axial direction extends along the width direction of the negative film 20 (the front-back direction of the paper surface of FIG. 5) is arranged at the axial center of the film housing case 82. Therefore, the pedestal 28 is transported and the film storage case 82 is transported.
The negative film 20 fed into the inside is guided so that the front end portion curves along the inner surface of the film housing case 82 around the spool shaft 86. At this time, the negative film 20 is fed so that the emulsion surface side is curved inward, and is curved along the curl habit caused by being stored in the cartridge 54.

As shown in FIGS. 4 and 5, one end of a bracket 88 is rotatably supported by a shaft 88A in the vicinity of a lower peripheral surface in a film housing case 82 (not shown in FIG. 4). . The middle portion of the bracket 88 is curved and the front end portion is directed to the circumferential surface of the spool shaft 86. Further, a pair of pressing rollers 90 is provided at the tip of the bracket 88, and the intermediate portion has a film accommodating case 8.
The pressing roller 90 (see FIG. 5) is urged by the torsion coil spring 92 arranged between the inner peripheral surface of the spool shaft 86 and the inner peripheral surface thereof so as to press the peripheral surface of the spool shaft 86 with a predetermined pressure. In addition, the inner peripheral surface of the film storage case 82 and the bracket 88
An elastic guide member 94 (see FIG. 5) is disposed between and.

Therefore, the leading end of the negative film 20 fed into the film accommodating case 82 is pressed from the inner surface of the film accommodating case 82 by the elastic guide member 94 and the intermediate portion of the bracket 88 to the pressing roller 90 and the spool shaft 8.
It is guided to the circumference of 6.

As shown in FIG. 6, the spool shaft 86
Is formed by providing a friction member 98, which is made of rubber or the like, for generating a predetermined frictional force between the shaft main body 96 and the negative film 20. Therefore, in the negative film 20, the spool shaft 86 is rotated in the winding direction of the negative film 20 (direction of arrow C in FIGS. 3 to 5) while being sandwiched between the peripheral surface of the spool shaft 86 and the pressing roller 90. Is wound around the spool shaft 86. The frictional force of the friction member 98 against the negative film 20 and the biasing force of the torsion coil spring 92 are the negative film 2 wound around the spool shaft 86.
It is set to such an extent that it can be wound around the spool shaft 86 without damaging 0.

As shown in FIG. 4, a take-up motor 100 is provided inside the housing 80 as a drive means for rotationally driving the spool shaft 86. The take-up motor 100 has a drive shaft 100A. Pulley 1 provided
02, an endless belt 108 is wound around a pulley 106 provided on a rotary shaft 104 to which a spool shaft 86 is connected. Therefore, by driving the winding motor 100, the rotating shaft 104 is rotated in the winding direction (arrow C direction) of the negative film 20 around the spool shaft 86 and in the direction opposite to the winding direction (drawing direction).

By the way, as shown in FIG. 6, the rotary shaft 104 penetrates the shaft main body 96 of the spool shaft 86 and supports the spool shaft 86 so as to be relatively rotatable. The material of the shaft body 96 of the spool shaft 86 is the rotary shaft 104.
It is preferable to use a plastic material having a good sliding property and abrasion resistance between, for example, POM (polyacetal), phenol resin, PPS (polyphenylene sulfide; trade name), PTFE (polytetrafluoroethylene). ), PC (polycarbonate), etc. can be used.

Further, the rotary shaft 104 is coaxially provided with a flange portion 112 having a boss 110 projecting between the spool shaft 86 and the pulley 106 toward the shaft body 96 of the spool shaft 86 as a driving force transmitting means. It is provided to rotate integrally.

A boss 114 having substantially the same diameter as that of the boss 110 is provided on the shaft body 96 of the spool shaft 86 so as to face the flange portion 112, and serves as a biasing means between the shaft body 96 and the flange portion 112. A coil spring 116 is arranged.
In this coil spring 116, the boss 110 of the flange portion 112 and the boss 114 of the shaft body 96 are inserted at both ends,
The bosses 110, 114 are urged by the urging force of the coil spring 116.
The spool shaft 86 and the rotary shaft 104 are connected by the frictional force generated between the outer peripheral surface of each of the above and the inner peripheral surface of the coil spring 116.

The coil spring 116 has a winding direction viewed from the side of the boss 114 and is directed in the direction opposite to the arrow C direction, and has a rectangular cross section in order to increase the contact area with the peripheral surface of the boss 114. Has been formed.

Therefore, when the rotary shaft 104 is rotated by the drive of the winding motor 100, the spool shaft 86 can rotate integrally with the rotary shaft 104. In addition,
The take-up motor 100 has a drive speed (rotation speed) set so that the spool shaft 86 can rotate at a peripheral speed higher than the transfer speed of the negative film 20 on the base 28 by the transfer motor 48.

On the other hand, when the peripheral speed of the spool shaft 86 becomes faster than the conveying speed of the negative film 20, the tension acting on the negative film 20 wound around the spool shaft 86 becomes large and the spool shaft 86 is negatively moved with respect to the rotating shaft 104. The force to relatively rotate the film 20 in the opposite direction to the winding direction becomes stronger. Since this force is in the opposite direction to the winding direction of the coil spring 116, the coil spring 116 is loosened, and the frictional force between the coil spring 116 and the boss 114 is reduced. Due to the reduction in the frictional force between the coil spring 116 and the boss 114, the spool shaft 86 is rotated.
With respect to 04, the negative film 20 can be rotated relative to the drawing direction.

When the negative film 20 pulled out from the cartridge 54 and wound on the spool shaft 86 is pulled back to the cartridge 54, the negative film 20 is pulled back so that the spool shaft 86 moves in the direction of arrow C with respect to the rotating shaft 104. By attempting relative rotation in the opposite direction, the coil spring 116 loosens, the frictional force between the coil spring 116 and the boss 110 of the flange 112 decreases, and the spool shaft 86 pulls out the negative film 20 with respect to the rotating shaft 104. Relative rotation is possible in the direction opposite to the arrow C direction. At this time, the winding motor 100 may stop driving (the rotation shaft 104 stops rotating).
If necessary, the rotating shaft 104 may be driven in the direction opposite to the arrow C direction so that the peripheral speed is lower than the conveying speed of the negative film 20.

Next, the operation of this embodiment will be described. The negative carrier 10 is a work table 16 of the printer processor 12.
The negative film 20 which is disposed on the above and has been developed
When the printing operation of the image recorded on the photographic paper is performed on the printing paper, first, the cartridge 54 in which the negative film 20 is wound in the form of layers on the winding shaft 56 and accommodated is loaded into the cartridge loading unit 32. At this time, the winding shaft 56 of the cartridge 54 is connected to the rotating shaft 58 for transmitting the driving force of the motor 60.

Thereafter, the motor 60, the conveyance motor 48 and the winding motor 1 are operated by operating a start switch (not shown) of the negative carrier 10 with the opening / closing cover 30 closed.
00 is driven to start the printing operation. When the motor 60 of the cartridge loading unit 32 is driven, the take-up shaft 56 of the cartridge 54 moves the negative film feeding direction (arrow B
Direction) and the negative film 20 in the cartridge 54 is sent out toward the conveyance path 42 of the pedestal 28. The negative film 20 sent out from the cartridge 54 is conveyed by the conveyance rollers 36, 3 which are rotated by the drive of the conveyance motor 48.
8 and the idle rollers 44 and 46, it is conveyed on the pedestal 28 in the direction of arrow A at a constant speed.

As described above, in the negative carrier 10, the perforation 20 of the negative film 20 is carried out while being pulled out from the cartridge 54 and being carried through the carrying path 42 of the pedestal 28.
When A is detected by the light source 76 and the sensor for perforation detection which is provided so as to face the light source 76, A is conveyed by a predetermined amount and the opening 6 of the pedestal 28 is conveyed.
8 and the opening 72 of the negative pressure bonding plate 70 between the negative film 2
Place 0 image frames. After that, the driving of the transport motor 48 and the motor 60 is stopped, and the solenoid 74 is energized to hold the image frame portion of the negative film 20 in close contact with the peripheral edge of the opening 68.

In this state, light for image printing is radiated from the light source 22 of the printer processor 10, and light transmitted through the image frame of the negative film 20 held at a predetermined position of the negative carrier 10 is printed by the printing section 24. Image on the photographic paper
The image of the negative film 20 is printed on photographic paper.

In the printer processor 10, the conveyance motor 48 and the motor 60 of the negative carrier 10 are repeatedly driven and stopped to pull out the negative film 20 from the cartridge 54, and the image frames recorded on the negative film 20 are sequentially printed in a predetermined manner. Place it in the position and perform the baking work.

At this time, the negative film 20 has the winding shaft 5
Since it is wound up in the cartridge 6 and accommodated in the cartridge 54, there is a considerable curl. However, in the negative carrier 10, a plurality of pairs of transport rollers 36, 38 and backup rollers 44, 4 are provided along the transport path 42 on the pedestal 28.
6 is provided and the negative film 20 arranged at the printing position is held on the pedestal 28 by the negative pressure plate 70, so that the image printed on the photographic paper is distorted due to the bending due to the curl. The image recorded on the negative film 20 can be accurately printed on the photographic paper.

On the other hand, the negative film 20 pulled out from the cartridge 54 while being repeatedly conveyed and stopped at a constant speed is fed from the opening 84 of the film accommodating portion 34 into the film accommodating case 82 in the housing 80.

As shown in FIG. 5, the leading end of the negative film 20 fed into the film containing case 82 is
It is guided from the opening 84 along the inner surface of the film accommodating case 82, and is further guided between the spool shaft 86 and the pressing roller 90 by the elastic guide member 94 and the bracket 88 to press the peripheral surface of the friction member 98 of the spool shaft 86. It is sandwiched between rollers 90. At this time, the tip of the negative film 20 can be smoothly guided along the curl of the negative film 20.

In this state, the boss 1 of the flange 112 is
10 and the boss 114 provided on the shaft body 96 of the spool shaft 86.
Are coupled to each other by a frictional force with the coil spring 116, the driving force of the winding motor 100 is transmitted to the spool shaft 86 via the rotating shaft 104, and the spool shaft 86 corresponds to the rotation speed of the winding motor 100. It is rotating at a peripheral speed. When the spool shaft 86 sandwiches the tip of the negative film 20 with the pressing roller 90, the negative film 20
The tip of the is wound around the spool shaft. Further, when the negative film 20 is fed into the film accommodating portion 34, the negative film 20 is wound around the spool shaft 86.

Here, on the pedestal 28, the negative film 20
The film is fed into the film accommodating portion 34 while being repeatedly conveyed and stopped at a constant speed, and the spool shaft 86 rotates the negative film 2
The speed of winding 0 is faster. Therefore, tension due to the speed difference acts on the negative film 20 wound around the spool shaft 86 to suppress the rotation of the spool shaft 86 in the winding direction (arrow C direction).

As a result, the spool shaft 86 becomes the rotary shaft 10.
4, the boss 114 formed on the shaft main body 96 of the spool shaft 86 resists the biasing force of the coil spring 116 and rotates the coil spring 116 in the direction opposite to the arrow C direction. The coil spring 116 is loosened. The looseness of the coil spring 116 reduces the frictional force between the coil spring 116 and the boss 114,
The spool shaft 86 rotates relative to the rotation shaft 104 in the direction opposite to the arrow C direction.

That is, when a predetermined tension is applied to the negative film 20 to be wound up, the spool shaft 86 is restrained from rotating by the rotating shaft 104, and the negative film 20 is prevented from being applied with a tension higher than that. Take up 20. Here, when a large tension acts on the negative film 20 when the spool shaft 86 winds up the negative film 20, this tension causes the conveyance path 42 of the pedestal 28.
The negative film 20 located on the upper side is strongly pulled, and the conveyance accuracy deteriorates. In addition, the image frame of the negative film 20 is attached to the opening 68 of the base 28 and the negative pressure plate 70.
The negative film 20 is pulled toward the film accommodating portion 34 side when it is positioned and stopped with respect to the opening 72, and the stop position is displaced.

In the negative carrier 10 used in this embodiment,
It is possible to prevent deterioration of the transport accuracy of the negative film 20 on the pedestal 28 and displacement of the negative film 20, thus enabling smooth and accurate printing work.

When the tension of the negative film 20 wound around the spool shaft 86 becomes lower than a predetermined value (lower than the tension when the frictional force between the boss 114 and the coil spring 116 decreases), the boss 114 and the coil spring 116. A predetermined frictional force acts between the spool shaft 86 and the rotary shaft 10
Therefore, the negative film 20 wound around the spool shaft 86 is not loosened.

Here, for example, when the negative film 20 is conveyed on the pedestal 28 at a constant speed, the negative film 20 wound around the spool shaft 86 is loosened, and the pedestal 2
If the spool shaft 86 is rotated when the transport of the negative film 20 is stopped on the No. 8, not only the looseness of the wound negative film 20 will disappear, but conversely, the tightening will occur. The surfaces of the negative film 20 wound around the spool shaft 86 may rub against each other and be damaged. However, in this embodiment, the spool shaft 8
Since the negative film 20 wound around 6 does not loosen, the surfaces of the negative film 20 do not rub against each other.

On the other hand, when the printing of the image recorded on the negative film 20 pulled out from the cartridge 54 onto the photographic paper is accommodated, the negative film 20 wound on the spool shaft 86 and accommodated in the film accommodating portion 34 is wound on the cartridge 54. return. In this operation, the transport motor 48 and the motor 60 are reversely driven to load the negative film 20 into the cartridge loading unit 3.
The sheet is conveyed on the conveying path 42 of the pedestal 28 toward 2. At this time, in the film accommodating portion 34, the winding motor 100 is stopped or the negative film 20 on the transport path 42 is stopped.
The spool shaft 86 is driven so as to rotate at a peripheral speed lower than the conveying speed of the above.

At this time, the negative film 20 tries to rotate the spool shaft 86 in the drawing direction of the negative film 20 (the direction opposite to the arrow C direction). Since the rotation speed of the rotary shaft 104 is slower than the speed at which the negative film 20 tries to rotate the spool shaft 86, the spool shaft 86 tries to rotate relative to the rotary shaft 104 in the pull-out direction of the negative film 20, and the coil spring 116. And the frictional force between the spool shaft 86 and the boss 114 formed on the spool shaft 86 is reduced. Therefore, the spool shaft 86 can rotate relative to the rotation shaft 104 in the drawing direction of the negative film 20.

The spool shaft 86 is composed of the coil spring 11
The negative film 2 due to the friction generated by the biasing force of 6
Since the negative film 20 is rotated in a state in which a constant tension is applied to 0, the negative film 20 is drawn into the cartridge 54 of the cartridge loading unit 32 with a constant tension, so that a smooth winding operation can be performed.

As described above, the driving force of the winding motor 100 for driving the spool shaft 86 in the winding direction of the negative film 20 is transmitted through the driving force transmitting means constituted by the bosses 110 and 114 and the coil spring 116. By doing so, the negative film 20 can be smoothly wound up and stored without causing slack, and the winding habit that occurs because the negative film 20 is wound up in a layered manner and stored on the winding shaft 56 of the cartridge 54. Therefore, the negative film 20 is not entangled.

In this embodiment, the film accommodating case 82, the elastic guide member 94, and the bracket 88 are used as the guide means. However, the tip of the negative film 20 is guided toward the peripheral surface of the spool shaft 86 to spool the spool. The present invention is not limited to this embodiment as long as it can be securely wound around the shaft 86. For example, the film accommodating case 82 may not be provided, and the guide structure may simply guide the tip of the negative film 20 along the circumference of the spool shaft 86 and in accordance with the curl formed in the negative film 20. .

In this embodiment, the boss 11 provided on the flange portion 112 of the rotary shaft 104 is used as the driving force transmitting means.
0 and the boss 114 provided on the shaft body 96 of the spool shaft 86 are connected by the coil spring 116, but the structure of the driving force transmission means of the present invention is not limited to this.

Here, a part of the structure of the driving force transmitting means applicable to the present invention will be described with reference to FIGS. 7 and 8. In the following description, the basic configuration is the same as that of the present embodiment, the same parts are designated by the same reference numerals, and the description thereof will be omitted.

In the spool shaft 120 shown in FIG. 7,
A boss 122 is coaxially projected on the shaft body 96. A flange portion 124 is provided on the rotating shaft 104,
A block member 126 for generating a predetermined frictional force between the flange portion 124 and the boss 122 of the spool shaft 120 is arranged between the flange portion 124 and the end surface of the boss 122.

The block member 126 is formed with a long hole 128 whose major axis extends along the axial direction of the rotary shaft 104, and a pin 130 penetrating the rotary shaft 104 is inserted into the long hole 128. . Thereby, the block member 1
26 rotates integrally with the rotating shaft 104, and
It is movable along the direction of the axis 4.

Further, the block member 126 and the flange portion 1
A compression coil spring 132 is provided between 24 and biases the block member 126 toward the boss 122 of the spool shaft 120 so that a predetermined frictional force is generated between the boss 122 and the block member 126. .

In the spool shaft 120 constructed as described above, the rotation of the rotary shaft 104 is transmitted by the frictional force between the boss 122 and the block member 126 to rotate. However, when the tension of the wound negative film 20 exceeds a predetermined value, the spool shaft 86 rotates relative to the rotating shaft 104 against the frictional force between the boss 122 and the block member 126, and the negative film When the tension of the film 20 decreases, the spool shaft 86 rotates following the rotating shaft 104 due to the frictional force, so that the negative film 20 can be uniformly wound around the spool shaft 86 without causing slack.

Further, in the spool shaft 140 shown in FIG.
Bosses 142 project from both ends of the shaft body 96 in the axial direction. The rotary shaft 104 penetrates through these bosses 142, and the circumferential surface of the rotary shaft 104 and the inner surface of the boss 142 slide, so that the spool shaft 140 and the rotary shaft 104 can rotate relative to each other. . Further, divided bearings 144, 146 are arranged in pairs on each boss 142, and one bearing 144 has a base 150 of a housing (not shown).
The block 148 is interposed between the base 15 and
Coil spring 152, which is an urging means whose both ends are connected to 0.
Is wound around the other bearing 146. Therefore, the bearings 144 and 146 rotatably support the boss 142 of the spool shaft 140, and the coil spring 152.
The inner surface of the boss 142 is urged toward the peripheral surface of the rotating shaft 104 by the urging force of, and a predetermined frictional force is generated between the inner surface of the boss 142 and the peripheral surface of the rotating shaft 104.

The spool shaft 140 also rotates integrally with the rotary shaft 104 due to the frictional force applied by the urging force of the coil spring 152, but when a tension of a predetermined value or more acts on the negative film 20 to be wound, the frictional force is resisted. Rotate relative to the rotating shaft 104. As a result, the negative film 20 can be wound around the spool shaft 140 without causing slack. Also in this case, the pedestal 28
Since an unnecessarily large tension is not applied to the upper negative film 20, the conveyance accuracy of the negative film 20 on the pedestal 28 is not deteriorated, and the stop position of the image frame of the negative film 20 is not displaced.

The spool shaft 12 shown in FIGS.
At 0 and 140, by using the biasing means such as the coil springs 132 and 152, the frictional force can be easily changed by adjusting the biasing force of the biasing means.

In this embodiment, the coil springs 116, 152 and the compression coil spring 132 are used as the biasing means, but the biasing means is not limited to this, and other spring materials such as leaf springs may be used. It is also possible to use not only a spring but also a member having a predetermined elasticity such as rubber. By using these, the driving force transmission means can be formed with a simple structure.

[0079]

As described above, in the film carrier of the present invention, when the photographic film pulled out from the cartridge is wound on the spool shaft, the driving force of the driving means is transferred to the film by the driving force transmitting means. The photographic film can be wound in a state in which a substantially uniform tension is applied to the photographic film. As a result, the rolled photographic film will not be repeatedly loosened and tightened, and the photographic film on the pedestal will not be pulled by a great force, which is an excellent effect that enables a smooth exposure process. Can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view showing a negative carrier suitable for this embodiment.

FIG. 2 is a perspective view showing the external appearance of a printer processor to which the negative carrier of this embodiment is mounted.

FIG. 3 is a schematic perspective view showing the configuration of a negative carrier transporting means.

FIG. 4 is a main part perspective view showing a schematic configuration of a film accommodating part.

5 is a cross-sectional view of essential parts of the film accommodating portion taken along the line 5-5 in FIG.

6 is a cross-sectional view of a main part of the spool shaft taken along line 6-6 of FIG.

FIG. 7 is a cross-sectional view of a main part of a spool shaft showing a modified example of the driving force transmission means.

FIG. 8 is a schematic perspective view of a spool shaft showing a modified example of driving means.

[Explanation of symbols]

10 Negative Carrier (Film Carrier) 12 Printer Processor 20 Negative Film (Photographic Film) 28 Pedestal 32 Cartridge Loading Section 34 Film Storage Section 42 Conveying Path 48 Conveying Motor (Conveying Means) 82 Film Containing Case (Guide Means) 86 Spool Shaft 88 Bracket (Guiding means) 100 Winding motor (driving means) 104 Rotating shafts 110, 114 Boss (driving force transmitting means) 116 Coil spring (driving force transmitting means, biasing means) 120, 140 Spool shaft 132 Compression coil spring (driving force transmitting means) , Biasing means) 152 Coil spring (driving force transmitting means, biasing means)

Claims (3)

[Claims] 1. A cartridge containing a photographic film wound up in layers on a take-up shaft and mounted in a cartridge mounting portion, and while the photographic film is pulled out from the cartridge, the photographic film is conveyed by a conveying means, and the photographic film is conveyed. A film carrier for sequentially arranging the image frames recorded in 1 above at a predetermined printing position, and winding the image frames into a film accommodating portion provided on the side opposite to the cartridge loading portion with the pedestal portion interposed therebetween, wherein the film accommodating portion is A spool shaft for winding the photographic film, a guide unit for guiding the photographic film fed by the conveying unit toward the peripheral surface of the spool shaft and winding the spool around the spool shaft, and a spool shaft at a predetermined speed. Drive means capable of rotating drive,
A film carrier, which is provided between the drive unit and the spool shaft, and which transmits a drive force of the drive unit to the spool shaft in accordance with a transport speed of the transport unit. 2. A predetermined frictional force is applied between a rotating shaft provided so that the driving force transmitting device is rotated by the driving device and rotatable relative to the spool shaft, and between the rotating shaft and the spool shaft. 2. The film carrier according to claim 1, further comprising an urging means for transmitting the rotational force. 3. When the urging means applies a rotational force of a predetermined amount or more to the spool shaft in a direction opposite to the film winding direction, the spool shaft is wound around the rotating shaft of the photographic film. The film carrier according to claim 2, wherein the film carrier is relatively rotatable in a direction opposite to the taking direction.