JP2000056403A - Film carrying unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a film carrying unit capable of switching a vertical position and a horizontal position while restraining the size of the unit itself and the size of a rotating space. SOLUTION: A negative carrier functioning as a carrying unit is equipped with a 1st unit 50 equipped with a carrying path for carrying a film and an aperture part for exposure 22a provided on the carrying path, a 2nd unit 40 holding the 1st unit 50 and a rotating mechanism for rotating the 1st unit 50 around the center P of the optical axis for exposure by 90 deg. with respect to the 2nd unit 40. Then, it is constituted so that the center of the aperture part 22a is moved from the center of the optical axis in the middle between the rotation start position and the rotation finish position of the 1st unit 50 by the rotating mechanism.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film transport unit capable of switching the position of a film relative to photographic paper between a horizontal position and a vertical position.

[0002]

2. Description of the Related Art In a photographic printing apparatus, a film transport unit (negative carrier) is used to print an image frame of a developed negative film (hereinafter, simply referred to as a film) on photographic paper. The film transport unit includes a transport path for transporting the film, an opening for positioning an image frame of the film, and the like. The image frame positioned at the opening is irradiated with light from an exposure light source, and the image frame is printed and exposed on photographic paper.

The film transport unit may be set at a horizontal position or a vertical position with respect to the photographic paper transport path. This is shown in FIG.
FIG. 9A shows a state in which the transport path of the film 1 and the transport path of the photographic paper are parallel in a state where the transport path is set at the horizontal position. FIG.
3B, the transport path of the film 1 and the transport path of the photographic paper are orthogonal to each other in a state where the transport path is set in the vertical position.

As a case of switching between the vertical position and the horizontal position, for example, a full-size image frame 1a shown in FIG. 9A and a half-size image frame 1b shown in FIG. May burn. Further, even for the same full size, the vertical position and the horizontal position are switched between the L size printing and the 2L size printing. This is because the long side of the L size and the short side of the 2L size have the same dimensions.

In FIG. 9, a film transport unit 10
At 0, an opening 101 is provided at the center, and the center P thereof coincides with the optical axis for exposure. A magnetic head device 102 is provided near the opening 101 to read magnetic information recorded on a magnetic track of the film 1.

[0006]

By the way, in order to switch between the horizontal position and the vertical position of the film transport unit 100, it is necessary to rotate the film transport unit 100 around the optical axis center P by 90 degrees. However, for the reasons explained below, 90
It could not be rotated by degrees. In other words, a mirror tunnel 103 that uniformly mixes light that has passed through the light source for exposure and the dimming filter is arranged in close contact with the opening 101, and the mirror tunnel 10.
A wall surface 100a indicated by a hatched portion in FIG. Since the magnetic head device 102 and the like described above are provided inside the wall surface 100a,
You can do it. Therefore, it is impossible to rotate the film transport unit 100 around the optical axis center P 90 degrees clockwise from the state of FIG. 9A because the mirror tunnel 103 and the wall surface 100a collide.

Therefore, in order to switch from the horizontal position to the vertical position, the film transport unit 100 is first moved in the direction of the arrow X, removed from the photographic printing apparatus, and then mounted again in the direction of the arrow Y. As described above, the method of inserting and removing the film transport unit 100 is not only troublesome, but also has a risk that the film transport unit 100 may be dropped during the insertion and removal operation.

Further, the mirror tunnel 103 and the wall 10
It is conceivable to change the location of the magnetic head device 102 in order to secure a large gap δ from the magnetic head device 102. However, since the positional relationship between the image frame positioned in the opening 101 and the magnetic head device 102 needs to be a predetermined relationship, the magnetic head device 102 is moved to a position further away from the opening 103. If it is arranged, the size of the film transport unit 100 becomes large, and a large space for rotating the film transport unit 100 is required.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a film transport unit capable of switching between a vertical position and a horizontal position while suppressing the size of the unit itself and the size of a rotation space. It is to be.

[0010]

In order to achieve the above object, a film transport unit according to the present invention comprises a transport path for transporting a film, and an opening for exposure provided on the transport path. A first unit, a second unit that holds the first unit, and a second unit that holds the first unit around the center of the exposure optical axis.
A rotation mechanism for rotating the rotation unit by 0 degrees, wherein the center of the opening moves from the optical axis center between a rotation start position and a rotation end position of the first unit by the rotation mechanism. It is characterized by the following.

According to this configuration, the first unit is rotated by 90 degrees with respect to the second unit. However, the rotation axis is not fixed at the center of the optical axis, but is rotated during the rotation. The mind is configured to move.
At the rotation start position and the rotation end position, the center of the optical axis coincides with the center of the opening, but during rotation, the center of the opening moves away from the center of the optical axis. Therefore, even if there is an obstacle such as a mirror tunnel around the optical axis, it can be rotated avoiding it. Therefore, the film transport unit can be rotated without changing the arrangement of the magnetic head device and the like in the film transport unit from the current state (without increasing the size of the unit).

As a preferred embodiment of the present invention, the rotating mechanism includes a cam body provided on one of the first unit and the second unit and a cam follower provided on the other. One that is composed.

According to this configuration, the movement locus of the center of the opening from the rotation start position to the rotation end position can be freely created by the cam curve of the cam body. Further, by using the cam mechanism, the rotation operation can be made smooth.

According to another preferred embodiment of the present invention, if an engagement member for engaging the cam follower is provided at the rotation start position and the rotation end position, the first and second positions are respectively set at the vertical position and the horizontal position. One unit can be stably held with respect to the second unit.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS <External Configuration of Photographic Printing Apparatus> FIG.
1 is an external perspective view of a photographic printing apparatus. A negative carrier 16 functioning as a film transport unit is set at a horizontal position. Reference numeral 10 denotes a printing exposure unit (part), in which an exposure light source and the like are housed. 6 is a mirror tunnel, 13 is a keyboard, and 14 is a monitor.
Two photographic paper magazines 3 are mounted on the upper part of the photographic printing apparatus. Reference numeral 11 denotes a development processing unit, and reference numeral 25 denotes a sorting device for sorting printed prints for each order.

<Overall Configuration of Photographic Printing Apparatus> FIG. 2 is a schematic view of the overall configuration of a photographic printing apparatus using a negative carrier as a film transport unit. A photographic printing apparatus includes a printing exposure unit 10 for printing and exposing an image frame of a negative film 1 (hereinafter, simply referred to as a film) on a photographic paper 2.
A developing section 11 for developing the exposed photographic paper 2;
A controller 12 for controlling the operation of each part of the apparatus. The controller 12 is connected with a keyboard 13 for inputting various control instructions and a monitor 14 for displaying image frame information read by the scanner 15.

The film 1 to be printed is a printing exposure unit 1
When the film is inserted into the negative carrier 16 set to 0, the image information of the film 1 is sequentially read for each frame by the scanner 15.
And the information is sent to the controller 12. The controller 12 calculates and determines an exposure condition for each image frame based on the read image information of the film 1. An image frame that would be obtained when the photographic paper 3 is exposed under the determined exposure conditions is displayed on the monitor 14 as a simulated image frame.

The operator of the photographic printing apparatus operates the monitor 1
When it is judged that an appropriate image cannot be obtained by looking at the display of No. 4,
An instruction to correct the calculated exposure condition is input from the keyboard 13. The controller 12 corrects the exposure condition based on the correction instruction, and determines the final exposure condition. Based on the determined exposure conditions, the operation of each part of the printing exposure unit 10 is controlled, and the image frames of the film 1 are projected and exposed on the photographic paper 2 drawn from the photographic paper magazine 3.

The printing paper 2 which has been subjected to the printing exposure is conveyed to the developing section 11 where it is subjected to developing processing, and is discharged to the sorting device 25 in a state of being stacked in order units.

<Structure of Each Part of Photographic Printing Apparatus> A printing carrier 10 includes a negative carrier 16, an exposure light source 4, and a filter for each color of yellow, cyan, and magenta. A light control filter 5 for adjusting the color balance of the irradiation light from the light source 4 for exposure, a mirror tunnel 6 for uniformly mixing the light whose color balance has been adjusted by the light control filter 5, and an image on the film 1. A printing lens 7 for forming an image of a frame on photographic paper 2 and a film 1
Mirror 8 for guiding the image frame in the direction of scanner 15
, Shutter 9 and transport roller 1 for transporting photographic paper 2
7 is provided. Further, a cutter 26 that cuts the photographic paper 2 into individual prints 2a, an exposure table 27 provided at the final end of the printing optical path, and a plurality of paper feeders that transport the exposed prints 2a toward the development processing unit 11. And a motor 18 for driving the transport roller 28.

The exposure table 27 includes a mesh belt 27a and a sprocket 27b for winding the belt 27a, and performs positioning by sucking the print 2a onto the belt 27a. The printing lens 7 and the reflection mirror 8 constitute one unit 19, and the entire unit 19 is configured to be movable in the direction of arrow C. When the image frame is read by the scanner 15, the unit 19 may be moved to the right side in FIG. 2 so that the reflection mirror 8 faces the optical path.

The light control filter 5 and the shutter 9 are controlled by the controller 12, and based on the exposure conditions finally determined by the controller 12, the position of each filter of the light control filter 5, the opening time of the shutter 9, ie, the exposure time, Time is controlled. The motor 18
Transports the photographic paper 2 in a frame-feed state under the control of the controller 12.

<Structure of Negative Carrier> FIG. 3 is a sectional view schematically showing the structure of a negative carrier. The negative carrier 16 includes a cartridge loading section 20, a film insertion section 21, a film transport mechanism, a negative mask 22, and a film winding mechanism 23 provided at the final end of the transport path. And The cartridge loading section 20 can be loaded with a cartridge 24 on which the film 1 has been wound. Further, the naked film 1 can be directly inserted into the film insertion section 21.

The film transport mechanism includes drive rollers 30, 31, 32 for transporting the film 1 and a pressure roller 3
3, 34, and 35. Also, the light sensor 36
And a magnetic head device 37 on the transport path. The light sensor 36 includes the light emitting element 36a and the light receiving element 3
6b, the optical data recorded on the film 1 is detected. The magnetic head device 37 includes a read head 37a and a write head 37b.
It detects magnetic data recorded on a magnetic track (not shown) of the film 1 or writes magnetic data. The magnetic head device 37 is required when processing a film 1 having a magnetic track.
The negative mask 22 has an opening 22a that defines an area of the image frame of the film 1 to be printed on the photographic paper 2.

The film take-up mechanism 23 includes a film 1
Drum 60 for winding the drum, a pressing roller 61 for pressing against the winding drum 60, and a pressing roller 61
A fixed guide 62 provided on the downstream side in the transport direction for guiding the film 1 around the winding drum 60;
Another pressing roller 63 provided further downstream of the fixed guide 62 in the transport direction. Pressure roller 6
1 is supported by a lever 64 so as to be able to swing around an axis 61a, and the pressure roller 63 is supported by a lever 65 so as to be able to swing around an axis 63a. The pressure rollers 61 and 63 are urged by a spring (not shown) so as to be pressed against the winding drum 60.

<Description of Operation of Negative Carrier> The operation of the negative carrier 16 will be briefly described. First, the film 1 is inserted from the film insertion section 21. The inserted film 1 is transported in the direction of arrow A by the film transport mechanism, and the developed image frame is transferred to the opening 2 of the negative mask 22.
2a in order, and image frames are scanned by the scanner 15.
Read by. At this time, the reflection mirror 8 is located at a position facing the optical path. When an image frame is read by the scanner 15, the image frame is displayed on the monitor 14 as a simulated image frame, and the operator inputs correction information such as color and exposure time from the keyboard 13 as needed, and an appropriate image is printed on the photographic paper 2. So that it can be burned.

The film 1 having passed through the negative mask 22 is taken up by the take-up drum 60 of the film take-up mechanism 23. When reading of all image frames is completed,
This time, the film 1 wound around the winding drum 60 is conveyed in the direction of arrow B by the film conveying mechanism, and is conveyed in a direction in which the film 1 is discharged from the film insertion unit 21. Next, the film 1 is transported again in the direction of arrow A. Then, the image frames of the film 1 are positioned in the openings 22a, and the image frames are sequentially printed on photographic paper.
At the time of this printing process, an appropriate print 2a is created in consideration of the correction information input earlier. The film 1 that has passed through the negative mask 22 is taken up by the take-up drum 60 again. When printing exposure of all image frames is completed, the film 1 wound on the winding drum 60 is transported in the direction of arrow B, and the film 1 is discharged from the film insertion section 21 and wound on the cartridge 24.

<Negative Carrier Rotation Mechanism> Next, a negative carrier rotation mechanism having a unique configuration of the present invention will be described. In FIG. 4, the negative carrier includes a second unit 40 functioning as a fixed base and a second unit 4.
A first unit 50 that is rotatable relative to zero is attached. The various components shown in FIG. 3 are mounted on the first unit 50, but are omitted in FIG. 4 for convenience of explanation. FIG. 4 shows a state where the negative carrier is set at the horizontal position.

The second unit 40 has a large opening window 41 at the center thereof, a cam plate 42, a first locking lever 43,
A second locking lever 44, a third locking lever 45, and a fourth locking lever 46 are provided. The first unit 50 has a first wall surface 50a, a second wall surface 50b, and a third wall surface 50c formed so as to surround the mirror tunnel 6 as its external shape. The first roller 51, the second roller 52, and the third roller 5 functioning as a cam follower for the cam plate 42.
Third and fourth rollers 54 are rotatably supported. The opening 22a of the negative mask 22 is located at a horizontal position as shown in FIG.

The first locking lever 43 is urged clockwise around the rotation shaft 43a by a first torsion spring 43b, and its rotation range is regulated by a first stopper pin 43c. The first locking lever 43 is in the first position in the horizontal position.
Engage with roller 51. The second locking lever 44 also includes a rotating shaft 44a, a second torsion spring 44b, and a second stopper pin 44c, and is engaged with the first roller 51 in the vertical position. As for the third locking lever 45, the rotation shaft 45a, the third torsion spring 45b, the third stopper pin 4
5c, and engages with the third roller 53 in the horizontal position. As for the fourth locking lever 46,
a, a fourth torsion spring 46b, and a fourth stopper pin 46c, and are engaged with the third roller 53 in the vertical position.

The cam plate 42 has a first cam surface 42a,
A cam surface 42b, a third cam surface 42c, and a fourth cam surface 42d are formed, and the first roller 51, the second roller 52, the third roller 53, and the fourth roller 54 slide, respectively. In FIG. 4, the optical axis center P and the opening center Q coincide with each other.

<Description of Operation of Rotation Mechanism> Next, the operation of the rotation mechanism will be described with reference to FIGS. FIG. 5 shows a state where the first unit 50 is rotated clockwise by 30 degrees with respect to the second unit 40. The center Q of the opening is shifted from the center P of the optical axis. In addition, with the operation of rotating from the state of FIG. 4, the engagement state of the first roller 51 and the first locking lever 43 and the engagement state of the third roller 53 and the third locking lever 46 can be released. FIG. 6 shows that the first unit 50
It is in a state of being rotated 0 degrees. Also in FIG. 6, the opening center Q
Is in a state moved from the optical axis center P. As can be seen from FIGS. 5 and 6, each of the wall surfaces 50 of the second unit 50 is provided.
The interference between a, 50b, 50c and the mirror tunnel 6 is avoided.

FIG. 7 shows a state in which the center P of the optical axis and the center Q of the opening again coincide with each other when set in the vertical position. At this time, the first roller 51 and the second locking lever 44 are engaged with each other, and the third roller 53 and the fourth locking lever 46 are engaged with each other, so that the second unit 50 can be stably held in the vertical position. FIG. 8 is a diagram showing the relationship between the rotation angle of the second unit 50 and the amount of movement of the center Q of the opening, and the shapes of the cam surfaces 42a, 42b, 42c, 42d are determined based on this.

<Another Embodiment> In the present embodiment, the cam plate 42 is provided in the second unit 40 and the rollers 51 to 54 are provided in the first unit 50.
0 may be provided with a cam plate and the second unit 40 may be provided with a roller.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a photo printing apparatus.

FIG. 2 is a schematic view showing the overall configuration of a photo printing apparatus.

FIG. 3 is a cross-sectional view schematically showing a configuration of a negative carrier.

FIG. 4 is a configuration diagram showing a rotation mechanism of a negative carrier.

FIG. 5 is an operation diagram 1 of a rotation mechanism of a negative carrier.

FIG. 6 is an operation diagram 2 of the rotation mechanism of the negative carrier.

FIG. 7 shows the operation of the rotation mechanism of the negative carrier.

FIG. 8 is a diagram showing the relationship between the rotation angle of the negative carrier and the amount of movement of the center of the opening.

FIG. 9 is a view for explaining a vertical position and a horizontal position of a negative carrier.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Film 6 Mirror tunnel 16 Negative carrier 22a Opening 40 Second unit 42 Cam plate 43,44,45,46 Locking lever 50 First unit 50a, 50b, 50c Wall 51,52,53,54 Roller P Optical axis center Q center of opening

Claims (3)

[Claims] 1. A first unit having a transport path for transporting a film, an exposure opening provided on the transport path, a second unit for holding the first unit, and a second unit. A rotation mechanism for rotating the first unit by 90 degrees around the center of the optical axis for exposure with respect to the unit, and between a rotation start position and a rotation end position of the first unit by the rotation mechanism, A film transport unit, wherein the center of the opening is configured to move from the center of the optical axis. 2. The method according to claim 1, wherein the rotating mechanism comprises a cam body provided on one of the first unit and the second unit, and a cam follower provided on the other. The film transport unit according to claim 1. 3. The film transport unit according to claim 2, wherein an engagement member that engages the cam follower is provided at the rotation start position and the rotation end position.