JP3252026B2 - Photo film transporter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographic film transport device.

[0002]

2. Description of the Related Art A photographic printer uses a film carrier that is used for both full and half size frames so that a full size frame of 135 type film and a half size frame can be printed by the same apparatus. There is. In this case, in order to print without changing the color photographic paper (hereinafter referred to as color paper) to be used, the film feeding direction is rotated by 90 degrees in the case of a half-size frame as compared with a full-size frame, and the frame is rotated. The orientation is adapted to the full size orientation.

Accordingly, when a half-size frame is printed using the same color paper after the full-size frame film is fed horizontally on the work table of the photo printer and printed, the feeding direction is set to the work table. It is vertical on top. At this time, if a large number of films are connected to make the film long, a special film guide device is provided, so that there is no significant problem even if the film is fed vertically. However, when printing a short negative film of one order, it is necessary to reverse the printed film so that the printed film can be easily taken out. For this reason, for example, a film reversal guide device as described in Japanese Utility Model Laid-Open No. 62-184545, Japanese Utility Model Laid-Open No. 1-67634, Japanese Patent Laid-Open No. 5-1357, etc. is disposed on the film outlet side of the film carrier. are doing.

[0004]

However, in each of the above-described film reversing guide devices, the photographic film is reversed by a film guiding surface having an inner peripheral surface formed in a concave portion. Therefore, the reversing direction changes little by little depending on the winding habit of the photographic film, and the discharging direction of the film may vary without being constant. As a result, the photographic film may come into contact with a part of the photographic printer and damage the photosensitive emulsion surface. In addition, since the film is reversed on the curved surface by feeding out the film, a moderately large curved surface is required to some extent, and there is a problem that the installation space in the vertical direction is increased.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a photographic film transporter capable of discharging a film to a fixed position irrespective of the curl of the photographic film, and furthermore, making the whole compact. It is intended to provide a device.

[0006]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a transporting path for transporting a photographic film , wherein the transporting path is such that the transporting path is horizontal, and A film carrier selectively set at a vertical feed position where the path is oriented vertically, and a curved outer peripheral surface attached to the film outlet side of the transport path at the vertical feed position of the film carrier, and having a curved outer peripheral surface; Spiral the photo film almost half a turn around
A reversing guide section for guiding a photo film, and the film
Photo taken from the film exit of the transport path at the vertical feed position of the carrier
Introduction of a film for guiding a true film to the reversing guide section
A guide section and a photo taken from the film exit of the reversing guide section.
The film is displaced and fed so as to be selectively positioned at a film discharge guide portion for guiding a true film, a film outlet of a transport path at the lateral feed position of the film carrier, or a film outlet of the film discharge guide portion. And a film discharge section for discharging the photographic film.

[0007] The photo film is a full-size photo film.
Photo film recorded in Zukoma recording format
And half the length of the full size frame and full size
Recording format for half-size frames that are the same width as the frames
By using the photo film recorded in
Recorded in the recording format of size frames and half size frames
Change the photosensitive material even for the recorded photo film
Without the need for printing.

[0008]

[0009]

When printing a full-size frame, the film is fed laterally by the film carrier of the workbench. When printing a half-size frame, the film carrier rotates 90 degrees on the worktable, and the film is fed in the vertical direction. In this case, the printed film is sent to the reversing guide section by the introduction-side guide, and is spirally wound halfway around the outer peripheral surface of the reversing guide section. As a result, the feeding direction of the film is almost reversed so that the film is fed in the depth direction of the work table and then sent obliquely to the near side by the reversing guide portion when viewed from the operator located in front of the work table. As described above, since the spiral is half-wound around the outer peripheral surface, the reversing space is reduced, and the reversing guide portion can be configured to be compact.

[0010]

As shown in FIG. 2, a film reversing guide device 10 of the present invention comprises a reversing guide portion 11, a film introduction guide portion 14 for guiding a half-size frame film 12, and a film 12 after reversal. And a film discharge guide portion 15 for guiding the film. An exposure opening 16a is formed in the workbench 16, and a film carrier 18 is detachably attached so as to cover the opening 16a.
The mounting recess 17 is formed on the inner side of the exposure opening 16a when the operator faces the worktable 16.

As is well known, the film carrier 18 comprises a base body 18a and a carrier body 18b, and a film transport path is formed in the carrier body 18b. The carrier main body 18b is attached to the base main body 18a so as to be rotatable by 90 ° about the printing optical axis, and the transporting position of the full-size negative film 13 is set to the horizontal feeding position on the worktable 16 (FIG. 2). , And a vertical feeding position (indicated by a two-dot chain line in FIG. 2) in which the conveyance path of the half-size film 12 is vertically set on the work table 16.

On the film exit side of the film carrier 18, a discharge guide 2 is attached to a worktable 16 via a rotation base 20.
1 are selectively set to a film horizontal feed position indicated by a solid line in the drawing and a film vertical feed position indicated by a two-dot chain line. The rotation base 20 is mounted on the worktable 16 via a mounting shaft 20a so as to be rotatable within a predetermined angle range. The discharge guide 21 is mounted on the rotating base 21 so as to be movable in the film feed direction. When the film is fed vertically, the discharge guide 21 is shifted obliquely rearward of the worktable 16 so that the film receiving side is connected to the discharge guide 15 of the reversing guide device. Is set to a position close to. The discharge guide 21 is provided with a film feed roller pair (not shown) and a film guide, and discharges the film from the worktable 16.

As shown in FIGS. 1 and 3, the reversing guide portion 11 has a pentagonal guide block 25 as viewed from above, and a film guide groove 26 formed in the guide block 25.
And film side edge guides 27 and 28 attached to the guide block 25 along the film guide groove 26. A reversing guide surface 25a is formed on one side of the guide block 25. Reverse guide surface 25a
Is constituted by an outer peripheral surface of a half-divided cylindrical body obtained by dividing a cylindrical body along an axis. And the film guide groove 2
6, the film 12 is wound halfway spirally around the reversing guide surface 25a, thereby reversing the feeding direction of the film.

As shown in FIG. 1, the film guide groove 26
Are the upper surface 25b of the guide block 25 and the reverse guide surface 2
5a and the lower surface 25c. The film guide groove 26 is formed in a stepped shape so that only both side edges of the film 12 are in contact with each other, and the film 12 is guided by the film side edge guide surfaces 26a and 26b on both sides. The central groove 30 is formed with a width corresponding to the image recording portion, so that the film 12 is not scratched. The guide block 25 is divided into a plurality of pieces so that the guide grooves 26 can be easily formed, and is integrated by mounting screws (not shown).

The film side edge guides 27 and 28 are formed of plastic strips, and are provided with mounting screws 39 (FIG. 3).
(See FIG. 3) so as to cover the film side edge guide surfaces 26a and 26b.

As shown in FIGS. 3 and 4, the film introduction guide portion 14 is provided on a machine frame 35 with a pair of film guides 3.
6, 37 and a film feed roller pair 38 are arranged. The film guides 36, 37 are horizontally mounted on both sides of the machine frame 35 by mounting screws 36b, and the film guides 36, 37 have guide grooves 36a for holding the film side edges so as to sandwich the film side edges from above and below. Is formed.

The film feed roller pair 38 is disposed at a position close to the film inlet 11a of the reversing guide section 11, and comprises a press roller 38a rotatably mounted on a press frame 39 and a drive roller 38b. ing. The press frame 39 is attached to the bracket 4 via the mounting shaft 39a.
0 to be freely rotatable. The bracket 40 is attached to the film guides 36 and 37 with mounting screws 41 (see FIG. 3).
It is fixed by. Press frame 39 and bracket 40
A coil spring 42 is disposed between the first and second frames, and urges the press frame 39 downward. As a result, the press roller 38a is pressed against the drive roller 38b, and the film 12 is sent to the reversing guide section 11 by the nip between the rollers 38a and 38b.

As shown in FIG. 5, a film discharge guide section 15 includes a first film feed roller pair 46,
First film guide 47, second film feed roller pair 4
8, the second film guide 49 is arranged. The machine casing 45 is configured by fixing side plates 45a and 45b with stays 45c. At one end of the side plate 45a, a mounting flange portion 45d is formed by bending, whereby the film discharge guide portion 15 is mounted on the worktable 16.

The first film feed roller pair 46 has substantially the same configuration as the film feed roller 38 of the introduction guide section 14, and includes a press roller 46a rotatably mounted on a press frame 50 and a drive roller 46b. It is configured. The press frame 50 is rotatably mounted on a bracket 51 via a mounting shaft 50a.
0 is urged upward by the coil spring 52.

The first film guide 47 is mounted on both side plates 45a and 45b of the machine frame 45 via mounting screws 47b, and has an S-shaped film guide groove 47a formed therein. The film 12, which is inverted and discharged from the sheet 11, is guided to the same level as the film transport path of the film carrier 18. The film exiting the first film guide 47 is fed to a second film feed roller pair 48.
Through the second film guide 49 and the discharge guide 2
Sent to 1. The second film feed roller pair 48 is also a first film feed roller pair.
The film feed roller pair 46 has substantially the same configuration as the film feed roller pair 46, and includes a press roller 48a rotatably mounted on a press frame 53 and a drive roller 48b. The press frame 53 is rotatably mounted on a bracket 54 via a mounting shaft 53a. The press frame 53 is urged downward by a coil spring 55.

A motor 60 is mounted on the upper part of the machine frame 45. As shown in FIG. 6, timing pulleys 62a, 62 are provided on the drive shaft 60a of the motor 60, the transmission shaft 61, and the drive roller shaft 48c of the film feed roller pair 48.
b, 62c are attached, and these pulleys 62
A timing belt 63 is wrapped around a to 62c and the idle pulley 62d. As shown in FIGS. 3 and 5, a transmission gear 65 is fixed to the shaft end of the transmission shaft 61 on the side opposite to the pulley mounting side, and the first film feed roller pair is engaged with this. A driven gear 66 is fixedly driven by a drive roller shaft 46c. FIG.
As shown in FIG. 7, a driven gear 67 meshing with the transmission gear 65 is fixed to the drive roller shaft 38c of the film introduction guide portion 14. As a result, when the motor 60 rotates, each film feed roller pair 38,
45 and 48 rotate synchronously.

Next, the operation of this embodiment will be described. In FIG. 2, in the case of the full-size negative film 13, the film carrier 18 is set at a lateral feed position drawn by a solid line in the drawing. In the film carrier 18 at this mounting position, the negative film 13 is guided laterally on the work table 16 to perform frame feeding. At this time, the printed film 13 is sent to the discharge guide 21 and discharged from the outlet.

In the case of the half-size negative film 12, the film carrier 18 is turned 90 degrees counterclockwise in FIG.
The film carrier 16 is set at the vertical feed position drawn by a two-dot chain line in FIG. In the film carrier 16 in this state, the negative film 12 is fed in the vertical direction, and the film 12 is fed on the worktable 16 from the near side of the operator to the back. After the rotation base 20 is rotated through the mounting shaft 20a, the discharge guide 21 is shifted on the rotation base 20 to the discharge guide portion 15 side of the film reversing guide device 10, and the discharge guide portion 15 is rotated. A film inlet is located at the film outlet.

When the film is fed in the vertical direction, the film 12 is fed into the film guide groove 26 of the reversing guide 11 by the film feed roller pair 38 of the introduction guide 14. When the film 12 passes through the film guide groove 26, the film 12 is discharged obliquely to the near side by the reversing guide surface 25a and discharged. The discharged film 12 is transferred to the worktable 16 by the discharge guide unit 15.
It is sent to the upper discharge guide 21. The discharge guide 21 is rotatably attached to the rotation base 20. The film discharge position of the film does not substantially change when the film is vertically and horizontally fed.
The half-size top film 12 is always discharged to a fixed position.

In the above embodiment, the film is fed by the film feed roller pairs 38, 46 and 48, but an endless belt or a sprocket engaged with the perforation may be used instead. Further, in the above embodiment, the film is inserted from the upper side of the reversing guide portion 11 and discharged from the lower side. However, the film may be inserted from the lower side and discharged from the upper side. Further, in the above-described embodiment, the outer circumferential surface of a half-split cylinder obtained by dividing the cylinder into half is used as the reversing guide surface 25a, but a loosely curved elliptical cross-section or a parabolic cross-section may also be used. .

[0026]

As described above, according to the present invention,
A reversing guide portion having a curved outer peripheral surface as a film guiding surface is provided, and the photographic film is spirally wound around the film guiding surface of the reversing guide portion for substantially half a turn, so that the feeding direction of the film can be easily and reliably reversed. Can be. Also,
Since the film is wound around the outer peripheral surface, the film can always be discharged to a fixed position without being affected by the curl of the film, unlike the case where the film is reversely guided by the inner peripheral surface. In addition, since it is wound, the reversal space can be small, and the whole can be compactly assembled. Also has a conveyance path for conveying a photographic film, and the film carrier the conveying path is selectively set to the longitudinal feed position lateral feed position and the conveyance path is vertically made sideways, the reversing guide portion And before
The film on the transport path at the vertical feed position of the film carrier
A film for guiding the photo film from the mouth to the reversing guide section.
The film introduction guide section and the film exit of the reversing guide section
A film discharge guide that guides the photo film from the mouth
When the lateral feed position the film outlet of the transport path or the displaced so as to be selectively positioned on the film outlet of the film discharge guide unit, film discharge portion for discharging the photographic film that has been sent, the film carrier Therefore, even when the photographic film is fed horizontally or vertically, a constant film discharge position can be set.

As a photographic film, a full-size frame
Photo film recorded in the recording format
Half the size of a size frame and the same width as a full size frame
Recorded in a half-size frame recording format
By using photo film, full-size frames and
Photos recorded in half-size frame recording format
The film can be used without changing the photosensitive material.
Lint is possible.

Also, the film guide surface of the reversing guide portion is
The cylindrical body is divided from the outer circumferential surface of the half-divided cylindrical body divided in the axial direction.
This reduces the resistance during film guide.
Can guide the film smoothly.
You. Further, the reversing guide portion is arranged so that the center line of the film guide surface is horizontal, and the reversing guide portion is provided with a film introduction guide and a film discharge guide horizontally so as to obliquely intersect the center line. Since the film feed means is provided on these guides, the film can be reliably turned over by feeding the film into the reversing guide portion.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a main part of a photo film reversing guide device embodying the present invention.

FIG. 2 is a plan view showing a main part of a photographic printer to which a photographic film reversing guide device of the present invention is attached.

FIG. 3 is a plan view showing a reversal guide device for a photo film.

FIG. 4 is a sectional view taken along the line IV-IV in FIG.

FIG. 5 is a sectional view taken along line VV in FIG. 3;

FIG. 6 is a view as seen from the direction of arrow VI in FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Film reversal guide device 11 Reversal guide part 12 Half size negative film 13 Full size negative film 14 Introduction guide part 15 Discharge guide part 18 Film carrier 20 Rotation base 21 Discharge guide 25 Guide block 25a Reversal guide surface 26 Film guide groove 27, 28 Film side edge guide 38, 46, 49 Film feed roller pair

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G03B 27/62 G03B 1/42 G03B 27/46

Claims (2)

(57) [Claims] A transport path for transporting the photographic film ,
A film carrier selectively set at a horizontal feed position at which the transport path becomes horizontal and a vertical feed position at which the transport path becomes vertical; and attaching the film carrier to the film exit side of the transport path at the vertical feed position. is, have a curved outer peripheral surface, this
A reversing guide for guiding the photo film in such a manner that the photo film is spirally wound around the outer peripheral surface for approximately half a turn.
And a film on a transport path at a vertical feed position of the film carrier.
Guide the photo film from the exit to the reversing guide section
Photo film from the film introduction guide section and the film exit of the reversing guide section
A film discharge guide portion for guiding the lateral feed position the film outlet of the transport path or displaced so as to be selectively positioned on the film outlet of the film discharge guide unit, photo sent film of the film carrier A photographic film transport device comprising: a photographic film discharging unit for discharging the photographic film. 2. A photo film recorded in a full-size frame recording format,
2. The photographic film transport device according to claim 1, wherein a photographic film recorded in a half-size frame recording format having a half length of the full-size frame and the same width as the full-size frame is used.