JP2001247239A - Film feed guide for film carrier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly unroll a roll of photographic film. SOLUTION: This film feed guide 19 is removably mounted on a film carrier 10. The film feed guide 19 has felt glued to the internal wall. A roll of photographic film 14 is housed in the film feed guide 19. The film feed guide 19 unrolls the photographic film 14 into a film feed passage 13. In the film feed guide 19, contact between the photographic film 14 and the felt protects the photographic film 14 from damage and provides smooth feeding. The film feed guide 19 uncurls the photographic film 14 before delivering it into the film feed passage 13. The photographic film 14 is protected from damage due to curling.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film supply guide for a film carrier for transporting a photographic film for reading an image or performing printing exposure.

[0002]

2. Description of the Related Art For example, a photographic film such as a negative film is taken into a developing station after being photographed and wound up in a case such as a cartridge. Then, at the photo lab, the film wound up in the cartridge is pulled out and developed, and thereafter, the film is mounted on a film carrier of a photographic printer, and a printing process for printing the image recorded on the film on photographic paper is performed. Doing and making photo prints.

On the other hand, for the purpose of facilitating the processing at the time of the printing processing again, the film which has been subjected to the development processing is returned without being cut off and wound up in a cartridge. In this case, the rolled film is stored in a plastic case or the like in which the cartridge has been placed.

[0004]

When the film is stored in a roll form for a long period of time, a strong curl may occur depending on the storage method. Due to this strong winding habit, there is a problem that the film is not fed smoothly to the film passage. Also, if the film is sent out with the winding habit, it will be twisted on the film passage, which may cause damage to the film. For this reason, there is a disadvantage in that a worker who takes out a film having a strong winding habit manually sends the film to the film passage in accordance with the winding habit, which is troublesome.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and provides a film supply guide for a film carrier capable of automatically and smoothly feeding a photographic film having a strong curl to a film passage. The purpose is to:

[0006]

In order to achieve the above object, a film supply guide for a film carrier according to the present invention is provided on a base member and a film provided on the base member for transporting a strip-shaped photographic film in the longitudinal direction. A film supply guide detachably attached to a film carrier provided with a transport means, wherein the film storage case is detachably or movably attached to a photographic film entrance of the film transport means, and a film storage case formed in the film storage case. And a film storage portion for rotatably holding a roll-shaped film having a strong winding habit.

[0007] Instead of a film supply guide consisting of a film storage case, a film holding rod inserted into the hollow core of a roll-shaped film having a strong curl, and this holding rod is moved to the guide position of the roll-shaped film. And holding rod mounting means for selectively setting the position to the position retracted from the guide position. Further, it is preferable that the film storage portion or the film holding bar is formed of a scratch preventing member.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a 135-size film carrier 10 comprises a base 11 and a cover 12.
And a film passage 13 between them.
Are formed. A photo film 14 is set and transported in the film path 13.

The cover 12 is attached to the base 11 so as to be openable and closable, and is fixed in a closed state by a lock member 15. Further, by sliding the lock member 15, the locking of the cover 12 by the lock member 15 is released. As a result, the cover 12 is rotated upward, and is brought into an open state in which the film passage 13 is opened. In the open state, maintenance such as cleaning of the film passage 13 is performed. Reference numeral 16 denotes a drive unit cover, in which a film feed motor, a clutch mechanism, and the like are arranged. Reference numeral 17 denotes an operation button, which is operated when the film is fed.

A film accommodating portion 18 is mounted on the base 11 at the end of the film passage 13. The film storage 18 temporarily stores the photo film 14 in a roll form.

As shown in FIG. 2, a film supply guide 19 of the present invention is detachably attached to the entrance side of the film passage 13 of the base 11. The film supply guide 19 includes a film storage case 20 and a film storage hole 20a formed in the film storage case 20.

As shown in FIG. 3, the film storage case 2
Numeral 0 is formed in a semicircular shape, and a film entrance 20b is formed in the upper part. A block-shaped mounting portion 21 is formed below the film entrance 20b. A hook 21 a protrudes from the mounting portion 21, and the hook 21 a is engaged with the locking groove 11 on the base 11 side.
a (see FIG. 4), the film storage case 20 is detachably attached to the base 11.

The film storage hole 20a is formed on one side surface of the film storage case 20. The film storage hole 20a is formed in a round shape.
A roll-shaped photographic film 14 having a strong curl is loaded in a. At the time of loading, the photo film 14 is set so that the leading end thereof slightly comes out of the film entrance 20b.

The film storage hole 20a is closed by the side cover 22, and the photographic film 14 is inserted through the film storage hole 20a.
Are not dropped off. The side cover 22 is formed in a semicircular shape, and is attached to the film storage case 20 via a hinge portion 22a so as to be freely opened and closed.

A felt 23 is attached to the inner surface of the film storage hole 20a so that the stored photographic film 14 is not scratched. In addition, besides the felt 23, telemping or other cloth can be used as the abrasion preventing member. Also, instead of providing a scratch preventing member such as a felt 23 on the inner surface, the film storage hole 20a may be formed integrally with the film storage case 20 using a synthetic resin or the like that does not damage the photographic film 14. Further, the abrasion preventing member may be coated. Also, the film storage case 20
The shape of the film storage hole 20a is not limited to the illustrated one,
It may be changed as appropriate. Further, although the film storage hole 20a is disposed below the film passage 13, the film storage hole 20a may be disposed above the film passage 13.

As shown in FIG. 4, in the film passage 13, a film leading edge sensor 25, a first film transport roller pair 26, a dust removal roller pair 27, magnetic heads 28 and 29, and a perforation sensor 30 are arranged in this order from the film insertion port 24. , A second film transport roller pair 31, an image reading unit 32, and a third film transport roller pair 33. Then, the photographic film 14 that has exited the third film transport roller pair 33 is guided to the film storage unit 18.

The film leading end sensor 25 detects insertion of the leading end of the photographic film 14. This detection signal is sent to the controller 34. The controller 34 rotates the film feed motor 36 forward via the driver 35 based on the film leading end detection signal and the feed signal from the film feed button. The rotation of the film feed motor 36 is controlled by a pair of transport rollers 2 via a timing belt or pulley (not shown).
6, 31, and 33. As a result, the photographic film 14 is fed so as to be drawn into the film carrier 10. Further, the sent photo film 14 is stored in a roll state in the film storage magazine 18.

Each of the transport roller pairs 26, 31, and 33 is composed of driving rollers 37, 38, and 39 disposed on the base 11, and pressing rollers 40, 41, and 42 disposed on the cover 12. The second and third transport roller pairs 31 and 33 are provided with roller shift mechanisms 43 and 44, respectively. The roller shift mechanisms 43 and 44 raise and lower the respective pressing rollers 40, 41 and 42 to move between the lowered nip position and the retracted position retracted upward. Then, the second and third roller pairs 31, 33 are selectively brought into the nip state, and the film is fed. In the A-direction feeding in which the photographic film 14 is drawn into the film carrier 10, the third feed roller pair 33 is in a nip state. When the photographic film 14 is fed in the direction B opposite to the direction A, the second feed roller pair 31 is in a nip state.

The dust removing roller pair 27 is a photo film 1
4 to remove dust adhering to both sides thereof.
The dust removal roller pair 27 is formed corresponding to the width of the photo film 14. Further, a one-way clutch is provided on the dust removing roller pair 27 so that the photo film 1 can be used.
When the sheet 4 is fed in the direction A, the rotation of the sheet 4 is restricted and dust on the photo film 14 is removed. When the photo film 14 is fed in the direction B, the photo film 14 rotates with the movement of the photo film, and the dust adhered to the dust removal roller pair 27 is returned to the photo film 14.

The magnetic heads 28 and 29 read magnetic recording information such as film identification information and photographing information from the photographic film 14 having a magnetic recording layer. This magnetic recording information is used for determining image processing conditions and printing exposure conditions. In addition, 1
The 35 type photographic film does not have a magnetic recording layer. Therefore, when the 135 type photographic film 14 is fed, the magnetic heads 28 and 29 are set at positions retracted upward from the film passage 13. Further, the perforation sensor 30 is used for the photo film 14.
To detect perforations. This perforation detection signal is used to specify the recording position of each frame.

As is well known, the image reading section 32 is provided with a guide ridge 45 and a film mask 46, and the photographic film 14 is curved in the film feed direction to eliminate warpage in the film width direction. I have. Guide ridge 4
5 has an illumination opening. As shown in FIG.
The film storage magazine 18 temporarily stores the received photographic film 14 in a roll form.

Next, the operation of the present embodiment will be described. In the case of a normal piece film or a roll film having no or little curl, the film is fed in a normal form without using the film supply guide of the present invention. Further, in the case of a photographic film which is stored in a roll form without being cut into a piece film after the film development and has a strong winding habit, the film supply guide of the present invention is used. First, a roll-shaped photo film 14 having a strong curl is set in the film supply guide 19 of the present invention. In this case, the side cover 22 is opened, and the rolled photo film 14 is inserted into the film storage hole 20a. Next, the leading end of the photo film 14 is pulled out from the film entrance 20b. Thereafter, the film supply guide 19 is moved to the film carrier 10.
Set to. With this setting, the leading end of the photo film 14 is inserted into the film passage 13. Next, when the film feed button 17 of the film carrier 10 is operated by the operator, the film feed motor 36 rotates forward, and the photographic film 14 is drawn into the film carrier 10. In this film feeding, the photographic film 14 is fed by the first film transport roller pair 26 which is always in the nip state and the third film transport roller pair 33 which is in the nip state by the roller shift mechanism 44.
The dust removal roller pair 27 comes into contact with the photo film 14,
Remove any dirt attached to both sides of this.

At this time, the curl of the photographic film 14 is corrected and the photographic film 14 is sequentially fed out from the film guide 10.
No twisting occurs on the film passage 13.
Further, since the felt 23 is stuck inside the film supply guide 10, the photographic film 14 is not damaged in the film supply guide 10.

When the photo film 14 reaches the image reading section 32, a pre-scan is performed by the scanner of the image reading apparatus. In the prescan, an image is read with relatively rough reading accuracy. Then, based on the pre-scan data, the image reading conditions for the subsequent fine scan are determined. When the pre-scan for all frames is completed, the film feed motor 36 is stopped, and the film feed is completed.

Next, the film feed motor 36 is rotated in the reverse direction, and the photographic film 14 is returned by the second and first film transport roller pairs 31 and 26. At this time, the third film transport roller pair 33 is set to the nip release state by the roller shift mechanism 44, and the second film transport roller pair 31 is instead set to the nip state by the roller shift mechanism 43. Then, when the film is returned, the image of each frame of the photographic film 14 is read by the fine scan. When the image reading of all the frames is completed, the film feed motor 36 continues to rotate for a certain period of time, and the photographic film 14 is discharged from the film carrier 10 and returned into the film supply guide 19. Thereafter, the next photo film 14 enters a standby state for insertion.

In the above-described embodiment, the film supply guide 19 having the film storage hole 20a is used. In addition, as shown in FIG. 5, a metal guide rod 47 formed by bending into a crank shape is used. The photographic film 14 having a strong curl may be sent out. In this case, a guide rod 47 is inserted into the hollow core of the photographic film 14 wound in a roll form, and the photographic film 14 is rotatably held by the guide rod 47.

The guide rod 47 is rotatably attached to the base 11 via a bracket 48 at an angle of 90 degrees. Then, in the horizontal state, the film guide position is set, and the photo film 14 in a roll form is rotatably held. In the state of standing vertically, it is in the retracted position. In the retracted position, when the normal photo film 49 is set on the film carrier 10, the film passage 13 is set so as not to hinder the film handling.
Standing away from

In addition to the method shown in FIG. 5, the guide rod 47 is attached by rotating the guide bar 47 by 90 or 180 degrees on a work table as shown in FIG. Between the evacuation position and
It may be displaceable. When the guide bar 47 is not used instead of being set at the retracted position, it may be simply removed from the film carrier.

In the above embodiment, the guide rod 47 is formed by bending a metal rod.
The guide rod may be formed by molding a synthetic resin or the like which does not damage the guide rod. Further, a roller may be arranged at a portion of the guide bar into which the photo film 14 is inserted, so that the photo film 14 can be more smoothly sent out. Further, a guide roller or the like may be arranged at the entrance of the film passage 13.

In the above-described embodiment, the present invention is applied to the film carrier 10 set in the image reading apparatus. In addition, an analog print system in which printing light transmitted through the photographic film 14 is imaged on color paper by a printing lens. The present invention may be applied to a film carrier for a photographic printer.

In the above embodiment, the present invention was applied to a 135-size film carrier.
It may be a film carrier for photographic films of 40 types and other 110, 120 and 220 sizes. In this case, the width of the film transport path or the film feed roller pair is changed according to the width of the film to be used.

[0032]

As described above, according to the present invention, a film storage case detachably or movably attached to the photographic film entrance of the film transport means, and the film storage case is formed to have a strong curl. Since the film storage portion for rotatably holding the rolled film is provided, the photographic film having a strong curl can be automatically and smoothly sent out to the film passage.

Also, a film holding rod inserted into the hollow core of a roll film having a strong curl, and the holding rod is selectively set at a guide position of the roll film and a position retracted from the guide position. Since the photographic film having the curl is twisted on the film passage, it can be prevented from being damaged.

Since the film accommodating portion or the film holding bar is formed of a scratch-preventing member, it is possible to prevent the photographic film from being damaged due to a curl.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a film carrier when a film supply guide is attached.

FIG. 2 is a perspective view showing a state in which a side cover of a film supply guide is opened.

FIG. 3 is a sectional view of a film supply guide.

FIG. 4 is a schematic configuration diagram showing a film carrier.

FIG. 5 is a perspective view showing a guide rod rotatable between a horizontal direction and a vertical direction according to another embodiment.

FIG. 6 is an explanatory view showing a guide rod rotatable in a horizontal direction according to another embodiment.

[Explanation of symbols]

 Reference Signs List 10 Film carrier 11 Base 14, 49 Photo film 19 Film supply guide 20 Film storage case 20a Film storage hole 23 Felt 47 Guide rod 48 Bracket

Claims (3)

[Claims] 1. A film supply guide removably attached to a film carrier provided with a base member and a film transport means provided on the base member for transporting a strip-shaped photographic film in a longitudinal direction, wherein the film supply guide comprises: A film storage case detachably or movably attached to the photo film entrance of the transport means, and a film storage portion formed in the film storage case and rotatably holding a roll-shaped film having a strong winding habit. A film supply guide for a film carrier. 2. A film supply guide detachably attached to a film carrier provided with a base member and a film transport means provided on the base member for transporting a belt-shaped photographic film in a longitudinal direction, wherein A film holding rod inserted into the hollow core of the strong roll film, and holding rod mounting means for selectively setting the holding rod at a guide position of the roll film and at a position retracted from the guide position. A film supply guide for a film carrier, comprising: 3. The film supply guide for a film carrier according to claim 1, wherein the film storage portion or the film holding bar is formed of a scratch preventing member.