JP2001249420A - Film carrier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To execute film feeding without clogging a photographic film which is preserved in a rolled form and has strong curling tendency. SOLUTION: An film storage magazine 14 or film guide 15 is freely attachably and detachably mounted at the terminal of a film passage 13 of a film carrier 10. When reading images are read from the photographic film 14 having the strong curling tendency, a user removes the film storage magazine 14 for an ordinary photographic film and mounts the film guide 15 for strong curling in a housing groove 52 of the film carrier 10. Felt is stuck to the surface of the film guide 15 which surface comes into contact with the photographic film 16. Since the photographic film 16 is guided by the felt, the photographic film 16 is smoothly fed and the flawing of the photographic film 16 is not caused any more.

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 carrying a photographic film for reading an image or performing printing exposure.

[0002]

2. Description of the Related Art Image information of a photographic film is read by a CCD, digitally processed, and then printed on photographic paper or the like. In this case, image information is read by irradiating the light of a light source to the photographic film from a light transmitting portion provided in the film passage and capturing the transmitted light of the photographic film by a CCD. Reading of such image information is performed using a film carrier.

A film carrier is provided with a pair of film transport rollers along a film transport path, and the photographic film is transported by rotating the pair of transport rollers. In reading a film image, the photographic film is sent in one direction to perform pre-scanning, and then the photographic film is sent to the side opposite to the pre-scanning to perform main scanning. Then, the reading conditions and the like for the main scanning are determined in the preliminary scanning, and the main scanning is performed in the main scanning under the reading conditions obtained from the preliminary scanning results. Thereby, the photographic film can be read accurately. In order to read the image of the photographic film by reciprocating the photographic film, a film storage magazine is provided on the film outlet side of the film carrier. This film storage magazine is for storing the received photographic film in a roll form and temporarily storing the photographic film, and is intended to prevent dust and damage of the photographic film.

[0004]

Incidentally, a developed photographic film or the like stored in a roll form for a long period of time has a strong curl. When reprinting such a photographic film, unlike a normal photographic film, the film tip may not enter the film storage magazine due to a strong curl. Also, because of a strong winding habit, it sometimes enters halfway and stops. In such a case, the film storage magazine is removed, and the photo film is read.

However, if the photo film is set in the film carrier and handled when the film storage magazine is removed, the photo film has a curl, and the photo film rubs on the base portion of the film carrier, and the photo film is rubbed against the film surface. May be scratched. To prevent this, it is necessary for the operator to wait near the film carrier and wind up the film by hand. In addition, there is a case where a user places a table on which felt or the like is stuck and guides it by hand, and freely spreads it on the felt surface according to the curl of the photo film. As described above, a photo film having a curl has a problem in that the production efficiency is reduced because the film is manually coped with the curl of the photo film. In addition, erroneous operation may damage the photo film.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to provide a film carrier capable of automatically transporting a photographic film even if the photographic film has a strong curl. I do.

[0007]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a base member, and a film transport means provided on the base member for transporting a strip-shaped photographic film in a longitudinal direction. A film carrier provided on the base member and removably holding a film storage magazine for storing a photo film conveyed by the film conveyance means, wherein the film storage magazine is removed. It has a film damage prevention guide which is detachably attached to the holding section and is connected to the transport path of the film transport means to guide the photographic film.

Preferably, the film damage prevention guide comprises a guide tube having a C-shaped cross section or a rectangular cross-section so as to hold the photographic film therebetween. Also, the surface of the film scratch prevention guide with which the photographic film is in contact,
It is preferable that it is made of a scratch preventing material. It is preferable that the film damage prevention guide is configured to be able to store substantially the entire length of the photographic film. Further, it is preferable that an edge portion of the magazine mounting portion that intersects with a film transport path by the film transport means is rounded and chamfered.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, a film carrier 10 is composed of a base 11 and a cover 12, between which a film passage 13 is formed. FIG. 1 shows the end of the film passage 13.
As shown in FIG. 2, a film storage guide 14 or a film guide 15 for strong winding habit as shown in FIG. The photo film 16 is set and transported in the film passage 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 17. Further, by sliding the lock member 17, the locking of the cover 12 by the lock member 17 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 18 denotes a drive unit cover, in which a film feed motor, a clutch mechanism, and the like are arranged. Reference numeral 19 denotes an operation button, which is operated when the film is fed.

As shown in FIG. 3, in the film passage 13, a film leading edge sensor 21, a first film transport roller pair 22, a dust removal roller pair 23, magnetic heads 24 and 25, and a perforation sensor 26 are arranged in this order from the film insertion port 20. , A second roller pair 27, an image reading unit 28, and a third roller pair 29. The third roller pair 29
Out of the photo film 16 is stored in the film storage magazine 14
Or, it is guided by the film guide 15.

The film leading end sensor 21 detects insertion of the leading end of the photographic film 16. This detection signal is sent to the controller 35. The controller 35 rotates the film feed motor 37 forward via the driver 36 based on the film leading end detection signal. The rotation of the film feed motor 37 is transmitted to each transport roller pair 22, 27, 29 via a timing belt or pulley (not shown). Thereby, the photographic film 16 is fed so as to be drawn into the film carrier 10. The sent photo film 16 is stored in a rolled state in the film storage magazine 14. In the case of the photo film 16 having a strong winding habit, the photo film 16 is stored in a substantially straight line by the film guide 15 for the strong winding habit.

Each of the transport roller pairs 22, 27, 29 is composed of a driving roller 40 disposed on the base 11 and a pressing roller 41 disposed on the cover 12. The second and third pairs of transport rollers 27 and 29 are provided with roller shift mechanisms 42 and 43, respectively. The roller shift mechanisms 42 and 43 raise and lower each press roller 41,
It is shifted between the lowered nip position and the retracted position retracted upward. Then, the second and third roller pairs 27 and 29
Is selectively nipped, and the film is fed. In the A-direction feeding in which the photographic film 16 is drawn into the film carrier 10, the third feed roller pair 29 is in a nip state. Also, the photo film 16 is placed in a direction B opposite to the direction A.
When feeding in the direction, the second feed roller pair 27 is in a nip state.

The dust removing roller pair 23 is a photo film 1
6 to remove dust adhering to both sides thereof.
The dust removal roller pair 23 is formed corresponding to the width of the photo film 16. Further, a one-way clutch is provided on the dust removal roller pair 23, and the photo film 1 is provided.
When the sheet 6 is fed in the direction A, the rotation is restricted and dust on the photo film 16 is removed. When the photo film 16 is fed in the direction B, the photo film 16 rotates with the movement of the photo film, and the dust adhered to the dust removal roller pair 23 is returned to the photo film 16.

The magnetic heads 24 and 25 read magnetic recording information such as film identification information and photographing information from a photographic film having a magnetic recording layer. The perforation sensor detects the perforation of the photographic film.
The magnetic recording information is used for determining image processing conditions and printing exposure conditions. The perforation detection signal is used to specify the recording position of each frame.

The image reading section 28 is provided with a guide ridge 44 and a film mask 45 as is well known, and the photographic film 16 is curved in the film feed direction to eliminate the warp in the film width direction. I have. Guide ridge 4
4 has an illumination opening.

As shown in FIG. 4, the film storage magazine 14 includes a case body 50 and a guide plate 51, and temporarily stores the received photographic film 16 in a roll form. As shown in FIG. 5, the film storage magazine 14 is detachably attached by being fitted into the storage groove 52 of the base 11. For this reason, as shown in FIG.
Is provided. The guide pin 53 enters the guide hole 54 formed in the storage groove 52, and positions the film storage magazine 14 on the base 11.

FIG. 4 shows a state where the film storage magazine 14 is attached. In the base 11, the corner where the magazine storage groove 52 intersects the film passage 13 is rounded and chamfered. A chamfered portion 56 is formed on the cover 12 above the chamfered portion 55. These chamfered portions 55 and 56 are formed so that, when the photographic film is fed in the direction A, it gradually opens as it goes downstream in the feed direction. The entrance 50a of the film storage magazine fits into the chamfered portions 55 and 56.

As shown in FIG. 5, when a photo film having a strong curl is set in the film carrier 10, the film storage magazine 14 is removed from the film carrier 10. Then, the film guide 15 for strong habit is attached to the removed storage groove 52.

The film guide 15 for strong winding is formed in a tubular shape having a rectangular cross section. As shown in FIG. 6, a felt 60 is attached to the inner surface of the film guide 15 where the photographic film 16 contacts. The felt 60 allows the photographic film 16 to be smoothly fed without being damaged.

As shown in FIG. 6, two guide pins 61 are provided on the bottom surface of the film guide 15 at positions corresponding to the guide holes 54, whereby the film guide 15 is positioned on the film carrier 10. Is done. The film guide 15 is formed to have a length capable of storing the entire length of the photo film 16. Although the illustrated film guide 15 is formed in a straight line, the film guide 15 may be formed in a curved shape in an arc or a spirally wound shape. 15 does not become too long.

Next, the operation of the present embodiment will be described. When the photo film 16 is, for example, a 135-type film and is stored in a roll form without being cut into a piece film after the film development, instead of the film storage magazine 14, as shown in FIG.
The film guide 15 for the strong winding habit is inserted into the film carrier 10
Set to. Next, the leading end of the photo film 16 is set at the entrance of the film passage 13, and reading of the photo film 16 is started.

The reading of the photographic film 16 is performed as follows. First, as shown in FIG. 3, when the leading end of the film is set in the film insertion slot 20, the film feed motor 37 rotates forward and the photo film 16 is drawn into the film carrier 10. In this film feed,
The photographic film 16 is fed by a first film transport roller pair 22 which is always in a nip state and a third film transport roller pair 29 which is in a nip state by a roller shift mechanism 43. When the perforation sensor 26 detects the perforation of the photo film 16, the scanner 11 of the image reading device (not shown)
A pre-scan is performed. 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 37 is stopped, and the film feed ends.

Next, the film feed motor 37 is rotated in the reverse direction, and the photographic film 16 is returned by the film transport roller pairs 27 and 22. At this time, the third film transport roller pair 29 is brought into the nip release state by the roller shift mechanism 43, and the second film transport roller pair 27 is brought into the nip state by the roller shift mechanism 42 instead. When the film is returned, the image of each frame of the photo film 16 is read by fine scanning. When image reading of all frames is completed, the film feed motor 37
Continues to rotate for a certain period of time, and the photographic film 16 is discharged from the film carrier 10. Thereafter, the next photo film 16 enters a standby state.

In the above embodiment, the film guide 15 having a rectangular cross section is used. Alternatively, as shown in FIG. 7, a film guide 70 having a C cross section may be used. The illustrated one is a C-shaped film guide 70.
Although the opening 71 is used with the opening 71 facing upward, the opening 71 may be used with the opening 71 facing downward. The film entrance 72 of the film guide 70 is formed so as to gradually open so that the leading end of the film can enter smoothly.

FIG. 8 shows a film guide 77 for a strong winding habit in another embodiment in which a fixed film guide 75 and a movable film guide 76 are connected. The movable film guide 76 is made of a flexible synthetic resin material, has flexibility, and can be easily bent. Therefore, the film carrier 10 does not protrude horizontally from the work table 78 of the image reading apparatus on which the film carrier 10 is set, and does not hinder the work.

In the above-described embodiment, the film guide 15 is constructed by attaching a flaw-preventing member such as a felt 60 to the surface where the photographic film 16 comes into contact. To form a film guide.

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

[0029]

According to the present invention, there is provided a film damage prevention guide which is detachably attached to a magazine holding portion in a state where a film storage magazine is removed, is connected to a transport path of a film transport means, and guides a photographic film. From
Even a photographic film having a strong curl can be fed without clogging or damaging the film. Therefore, it is not necessary for the operator to always handle the film in a standby state, and efficient work can be performed.

The structure of the film damage prevention guide can be simplified by using a guide cylinder having a C-shaped cross section or a rectangular cross-section so as to hold the photographic film therebetween. Further, the surface of the film damage prevention guide, which is in contact with the photo film, is made of a damage prevention material, so that the photo film having a strong curl will not be damaged.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a film carrier of the present invention in a state where a film storage magazine is set.

FIG. 2 is a perspective view showing a film carrier in a state where a film guide for a strong winding film is set.

FIG. 3 is a schematic view showing a configuration of a film carrier.

FIG. 4 is a sectional view of a main part showing a state where the film storage magazine is attached.

FIG. 5 is a perspective view of a film carrier showing a state where a film storage magazine or a film guide is selectively mounted.

FIG. 6 is a cross-sectional view of a main part showing a mounting state of the film guide.

FIG. 7 is a perspective view showing a film guide according to another embodiment.

FIG. 8 is a perspective view showing a use state of a film guide in another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Film carrier 11 Base 12 Cover 13 Film passage 14 Film storage magazine 15, 70, 77 Film guide 16 Photo film 52 Storage groove 55, 56 Chamfering part 75 Fixed film guide 76 Movable film guide

Claims (3)

[Claims] 1. A base member, a film transport means provided on the base member for transporting a strip-shaped photographic film in the longitudinal direction, and a photographic film provided on the base member and transported by the film transport means. A film carrier having a magazine holding portion for detachably holding a film storage magazine, wherein the film storage magazine is detachably attached to the magazine holding portion in a state where the film storage magazine is removed, and connected to a transport path of the film transport means. A film carrier having a film damage prevention guide for guiding a photographic film. 2. The film carrier according to claim 1, wherein the film damage prevention guide is formed of a guide cylinder having a C-shaped cross section or a rectangular cross-section so as to hold the photographic film therebetween. 3. The film carrier according to claim 1, wherein a surface of the film damage prevention guide with which the photographic film comes into contact is formed of a damage prevention material.