JP2812210B2 - Film processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film processing apparatus having an opening changing means for changing the size of an exposure opening for printing and exposing a film frame located at a printing exposure processing position.

[0002]

2. Description of the Related Art Such a film processing apparatus performs printing exposure of image information of a film by positioning a frame of a film at a printing exposure processing position. In other words, light from a light source is applied to the film frame located at the printing exposure processing position, and the light transmitted through the film frame reaches a photosensitive material such as photographic paper, so that printing exposure of the image information of the film is performed. Done. When performing the printing exposure process as described above, the film frame, that is, the area where the image information is recorded, is properly positioned at the printing exposure processing position, and the printing exposure of an appropriate size corresponding to the size of the film frame is performed. It is necessary to provide an exposure opening.

[0003] By the way, in the case of a 135 mm type film, the size of a frame printed on the film is as follows.
For example, there are a frame called a full size and a frame called a panorama size whose dimension in the short side direction is shorter than the full size, and it is necessary to change and adjust the size of the exposure opening in accordance with the size of each frame. By the way, in recent years, frames having different sizes such as the full size and the panorama size may be mixedly present on one film, and even in such a case, the exposure aperture may be adjusted according to the size of the frame. It is necessary to change and adjust the opening size of the part.

For this reason, an opening change means is provided,
2. Description of the Related Art Printing exposure of pieces having different sizes has been conventionally performed. Japanese Patent Application Laid-Open No.
There is one disclosed in Japanese Patent Application Publication No. 01-1774. That is, a pair of light shielding members rotatable around an axis parallel to the film transport direction, a gear that rotates integrally with the pair of light shielding members, an idle gear that meshes with one of the pair of gears, and an idle gear Providing a rack that meshes with a gear or a gear on the side of the pair of gears on which the idle gear does not mesh, and rotating the pair of light blocking plates in the opposite direction in conjunction with the sliding movement of the rack to form an opening. Some have dimensions changed.

[0005]

However, in the above-mentioned prior art, since the pair of light-shielding members are of a rotary type, the pair of light-shielding members are formed as compared with those using other forms such as a slide type. Although it has the advantage of being easy to operate smoothly, it uses an idle gear to rotate the pair of light blocking members in the reverse direction, which has the problem that the device configuration is complicated, and the cost of parts and assembly increases, leaving room for improvement. there were. The present invention has been made in view of the above circumstances, and an object of the present invention is to simplify the configuration of an opening changing unit and reduce the cost of the entire apparatus.

[0006]

SUMMARY OF THE INVENTION A film processing apparatus according to the present invention has a film having an opening changing means for changing an opening size of an exposure opening for printing and exposing a film frame located at a printing exposure processing position. A first characteristic configuration of the processing apparatus is that the opening change means is configured to rotate around a first axis parallel to the film transport surface, and a first light shielding member; A first gear that rotates integrally, a second light-blocking member that can rotate around a second axis parallel to the first axis, and a second light-blocking member that rotates together with the second light-shielding member; A second gear meshed with and coupled to the first gear;
A driving unit connected to the first light blocking member, wherein the driving unit is driven to change the dimension of the opening.

According to a second aspect of the present invention, in the above-mentioned first aspect, the driving means sets the dimension of the opening to a first dimension having a predetermined area and a size smaller than the first dimension. The first light-blocking member and the second light-blocking member are switchably driven to a second opening having an area, and when the opening is switched to the second opening, A first contact portion provided on the first light blocking member and a second contact portion provided on the second light blocking member;
This is the point that the size of the dimension of the second opening is determined by the contact with the contact portion.

In a third aspect of the present invention, in the first or second aspect, the first light-shielding member and the first gear are integrally formed, and the second light-shielding member and the second gear are integrally formed. In that it is. A fourth characteristic configuration of the present invention is:
In the first, second, or third characteristic configuration, the first light-shielding member and the second light-shielding member are configured by the same component.

According to a fifth aspect of the present invention, in the first, second, third or fourth aspect, the first axis and the second axis are located at positions distant from the film transport surface. And the distance between the axes of the first axis and the second axis is set to be shorter than the dimension of the opening in the short side direction.

[0010]

According to the first feature configuration of the present invention, the first and second features are provided.
The first light-blocking member is driven by directly meshing with a pair of gears that rotate integrally with each of the light-blocking members, so that the first
The light shielding member and the second light shielding member are rotated in opposite directions. According to a second feature configuration of the present invention, the first
When the first contact portion provided on the light blocking member and the second contact portion provided on the second light blocking member are in contact with each other, the size of the second opening is determined.

According to the third feature of the present invention, the first light-shielding member and the first gear are integrally formed, and the second light-shielding member and the second gear are integrally formed. The number of parts can be reduced as compared with the case where is constructed by separate parts. According to the fourth characteristic configuration of the present invention, since the first light-shielding member and the second light-shielding member are formed of the same component, the number of components can be further reduced.

According to a fifth feature configuration of the present invention, the first feature is provided.
In addition, since the second shaft center is configured as in the above-described characteristic configuration, when the light shielding member is driven to have the size of the second opening, the rotation angle of the light shielding member is small, particularly, 90 ° or less. Can be.

[0013]

According to the first characteristic configuration, the pair of gears that rotate integrally with the first and second light shielding members are directly engaged with each other, so that the pair of light shielding members are rotated in opposite directions. Therefore, the idle gear described in the conventional example can be omitted, and the configuration of the opening changing means can be further simplified, thereby reducing the cost of the entire apparatus. it can. According to the second characteristic configuration, the size of the second opening is determined by the contact of the contact portions provided on the first light-shielding member and the second light-shielding member. By providing the positioning tool in contact with the fixing frame on the fixed frame, the accuracy of the opening size can be obtained with a simple configuration as compared with the case where the configuration for determining the second opening size is employed.

According to the third characteristic configuration, the number of components can be reduced by integrally forming the light shielding member and the gear, so that the cost of the entire apparatus can be reduced. According to the fourth characteristic configuration, the number of components is further reduced, so that the cost of the entire apparatus can be further reduced. According to the fifth characteristic configuration, since the rotation angle of the light shielding member can be reduced, the driving energy can be reduced. Therefore,
Since a small driving means can be used, the space for the device is small, and the entire device can be downsized.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, the form of a film processed by a film processing apparatus according to the present invention will be described with reference to FIG.
Film 2 has a frame 13 which has been exposed and developed.
This represents a 5 mm type negative film. Here, the pieces 2b and 2c are arranged at a substantially equal pitch in the longitudinal direction of the film. The larger piece 2b of the pieces 2b and 2c has a dimension x in the longitudinal direction and a dimension yf in the shorter side and is called a full size. On the other hand, a small piece 2
c has a dimension x in the longitudinal direction and a dimension yp in the short side direction and is called a panorama size. The longitudinal size x is equal between the full size and the panoramic size. On the film 2, such full-size frames 2b and panorama-size frames 2c are arranged in a mixed state without regularity. Perforations 2a are regularly arranged on both outer sides in the width direction of the frames 2b and 2c of the film 2 along the longitudinal direction of the film. The perforations 2a are used for film transport control and the like. The film 2 is conveyed along its longitudinal direction, and is subjected to processing such as reading of image information and printing of image information on photographic paper.

Next, an embodiment in which the present invention is applied to a photographic printing apparatus as an example of a film processing apparatus will be described with reference to the drawings. As shown in FIG. 1, the photoprinting apparatus 1 includes a scanner unit SC as a film processing unit that detects image information of the film 2 and an exposure unit that projects and exposes the image information of the film 2 onto a photographic paper 3 as a photosensitive material. EX, a development processing unit DE for developing the exposed photographic paper 3, and a controller CO for controlling the operation of each unit. The controller CO and the scanner unit SC for inputting various control instructions are provided in the controller CO. Monitor MT that displays image information and the like read by
And are connected.

When the film 2 to be printed is inserted into the scanner unit SC, the film 2 is scanned by the scanner unit SC.
Is read for each frame, and the image information is sent to the controller CO. The film 2 whose image information has been read by the scanner unit SC is transported to the exposure unit EX. The controller CO determines the exposure condition for each frame based on the image information of the film 2 read by the scanner unit SC, and will be obtained when the photographic paper 3 is projected and exposed according to the determined exposure condition. The image is simulated and displayed on the monitor MT. The controller CO
Determines whether the frame of the film 2 is of full size or panorama size from the image information read by the scanner unit SC, and stores the information. That is, the controller CO also functions as a determination unit for determining the size of the frame of the film and a storage unit for storing the size of the frame of the film. This stored information is used when the size of the opening is controlled by the opening changing means described later.

The operator of the photographic printing apparatus 1 operates the monitor M
In view of the display of T, if an appropriate image has not been obtained, a correction instruction for the determined exposure condition can be input from the console O, and the controller CO corrects the exposure condition based on the correction instruction to make the final adjustment. Determine the exposure conditions. Based on the determined exposure conditions, the operation of each part of the exposure unit EX is controlled, and the image information of the film 2 is projected and exposed on the photographic paper 3 drawn from the photographic paper magazine 4. The photographic paper 3 on which the exposure has been completed is conveyed to the development processing section DE where the photographic paper 3 is developed, and is discharged in a state of being cut one by one corresponding to each frame of the film 2.

Hereinafter, the configuration of each unit will be described. The scanner unit SC includes a light source 20 that irradiates the film 2 for reading image information, a tunnel mirror 23 that uniformly mixes irradiation light from the light source 20, and a scanner unit that conveys and positions the film 2 in the scanner unit SC. A film transport unit U1, an image sensor 21 as a light receiving unit that converts image information of the film 2 into an electric signal, and a reading lens 22 that forms an image of the image information of the film 2 on the image sensor 21.

The exposure section EX has an exposure light source 60 and a dimming filter 61 for adjusting the color balance of the light emitted from the exposure light source 60 by the yellow, magenta and cyan filters coming and going in the exposure optical path. , Mirror tunnel 6 that uniformly mixes light whose color balance has been adjusted by dimming filter 61
2. A film transport unit U2 for the exposure unit for transporting and positioning the film 2 in the exposure unit EX,
A printing lens 63 for forming an image of the image information on the photographic paper 3;
A shutter 64, a transport roller 65 for transporting the printing paper 3, and a motor 66 for driving the transport roller 65 are provided. The light control filter 61 and the shutter 64 are controlled by the controller CO, and the position of each filter of the light control filter 61 and the opening time of the shutter 64, that is, the exposure time, are controlled in accordance with the exposure condition determined by the controller CO. The motor 66 conveys the printing paper 3 in a frame-feeding state under the control of the controller CO.

Although illustration is omitted in the developing section DE,
There are provided a plurality of processing tanks filled with a plurality of processing liquids for developing the exposed photographic paper 3 and a cutter for cutting the photographic paper 3 having undergone the development processing for each frame. Hereinafter, the configuration of the film transport unit U2 for the exposure unit provided in the exposure unit EX, which includes the opening changing unit of the present invention, will be described.

The transporting unit U2 for the exposure section has a structure in which an upper unit 7 and a lower unit 8, which are a pair of frames, are pivotally connected so as to be able to swing and open and close. ing. FIG. 2 shows a state in which the upper unit 7 and the lower unit 8 are closed, and FIG. 3 shows a state in which the upper unit 7 and the lower unit 8 are open. The film 2 is inserted in the direction of arrow A and discharged in the direction of arrow B.

As shown in FIGS. 3 and 4, the lower unit 8 includes driving rollers 80a, 80b, 80c, 80d,
80e, a lower guide 8 which guides and supports the left and right end portions of the film 2 and depresses a portion of the film 2 which is to pass through the image surface.
1. A motor 83a for driving the driving roller 80a via a belt 82a, and driving rollers 80b, 80c, 80d, 8
Motor 83 for interlockingly driving the motor 0e via a belt 82b.
b, a light emitting portion 85a of the DX code detecting optical sensor 85 for detecting the DX code of the film 2, a light emitting portion 86a of the perforation detecting optical sensor 86 for detecting the perforation 2a of the film 2, and an image portion of the film 2 Light Emitting Unit 8 of Image Detection Optical Sensor 87 for Detecting
7a, and a negative mask 88 having an opening 88a that defines an area of the image portion of the film 2 to be printed on the photographic paper 3. Although not shown in FIGS. 3 and 4, on the side opposite to the film transport surface of the negative mask 88,
An opening changing means described later is arranged. The opening 88a of the negative mask 88 has a size corresponding to the full size.

In the upper unit 7, as shown in FIG.
An upper guide 90 that supports and guides the left and right ends of the film 2 together with the lower guide 81 and that is depressed at a portion where the film 2 is to pass through the image surface is provided.
Is an upstream portion 90 formed on an upstream support member 91a located on the upstream side of the film 2 transport path with the location of the negative mask 88 through which the irradiation light from the exposure light source 60 passes.
a, and a downstream portion 90b formed on a downstream support 91b located downstream of the film 2 transport path.

The upper unit 91 is provided on the upstream support 91a.
The pressing units 89a, 89b, 89c installed at positions opposed to the driving rollers 80a, 80b, 80c, respectively, with the unit and the lower unit 8 closed, the light receiving unit 85b of the DX code detecting optical sensor 85, and perforation detecting The light receiving portion 86b of the optical sensor 86, the light receiving portion 87b of the image detecting optical sensor 87, and the downstream support 91b face the drive rollers 80d and 80e, respectively, when the upper unit 7 and the lower unit 8 are closed. Pressure rollers 89d and 89e and an exit roller 92 are provided at the positions.

The upstream support 91a is supported by a cover 7a of the upper unit 7 via a pin 70 and a compression coil spring 71, as shown in the schematic sectional views of FIGS. The pin 70 has a tip fixed to the cover 7a,
The large-diameter head is locked to the upstream support 91a. The compression coil spring 71 includes a cover 7a and an upstream support 91a.
Are urged in the separating direction. The insertion hole of the pin 70 in the upstream support 91a is formed by the slide metal 72 embedded in the upstream support 91a, and the inside diameter of the insertion hole of the pin 70 is the outside diameter of the pin 70 (the outside diameter of the portion other than the head). Outer diameter), so that the upstream support 9
1a is movable with respect to the cover 7a.

As shown in FIGS. 5 and 6, the upstream support 91a is provided with a cylindrical positioning pin 94a, and the lower unit 8 has a shape corresponding to the position and shape of the positioning pin 94a. Is provided. When the upper unit 7 and the lower unit 8 are opened from the state where the upper unit 7 and the lower unit 8 are opened to clean the inside of the unit, first, the positioning pin 94a on the swing center side provided on the upstream support 91a is connected to the lower unit 8 side. And contacts the positioning hole 94b. The outer diameter of the positioning pin 94a and the inner diameter of the positioning hole 94b are set to be substantially equal in order to accurately perform positioning. Therefore, at the time of the contact, the positioning pin 94a is in a posture inclined with respect to the positioning hole 94b.

Further, when the upper unit 7 and the lower unit 8 are closed, the upstream support 91a is movable with respect to the cover 7a. To a posture parallel to the lower unit 8. As a result, the positioning pin 94a changes to a position in which the positioning pin 94a can be fitted into the positioning hole 94b, and the two are fitted together as shown in FIG. The downstream support 91b is also movably attached to the cover 7a.

Next, the operation of the exposure section film transport unit U2 having the above-described structure will be schematically described. When the film 2 is inserted into the exposure section film transport unit U1, the film 2 is driven by the driving rollers 80a, 80b, 80c, 80d,
80e and pressure rollers 89a, 89b, 89c, 89d,
It is conveyed in a state in which the left and right ends are sandwiched between the left and right sides of the sheet 89e.
The drive rollers 80a, 80b, 80c, 80d, 80
e, pressure rollers 89a, 89b, 89c, 89d, 89
e, the belts 82a and 82b and the motors 83a and 83b function as a transport unit N for transporting the film 2. During this conveyance, the optical sensor 87 for image detection is
The image portion of the film 2 is detected by distinguishing between the image portion and the snake portion, and a control circuit (not shown) provided in the lower unit 8 controls the operation of the motor 83b based on the detected information, and The exposure is properly stopped within the opening 88a of the negative mask 88, and the printing exposure is executed under the control of the controller CO.

The film transport unit U1 for the scanner section
Has an outer diameter shown in FIG. 7, and as shown in FIG. 7, it is arranged on the support 40 in parallel with the film transport unit U2 for the exposure unit in the transport direction of the film 2. The internal configuration and operation of the film transport unit U1 for the scanner unit are almost the same as the internal configuration of the film transport unit U2 for the exposure unit, and the film transport unit U1 for the scanner unit schematically shown in FIG. The transporting means N which has the same configuration.

In the state shown in FIG. 7, the film transport unit U1 for the scanner unit and the film transport unit U for the exposure unit
When the film 2 is inserted into the film transport unit U1 for the scanner unit while the scanner unit S is disposed, the scanner unit S
The image information of the film 2 is sequentially read by the image sensor 21 of C, and the film 2 from which the reading of the image information has been completed is directly inserted into the film transport unit U2 for the exposure unit, and is sequentially printed and exposed. Next, according to the present invention,
An embodiment of the opening changing means will be described with reference to the drawings.

FIG. 9 shows the shape of the negative mask 88, which has an opening 88a at the center thereof. The film 2 is transported on the film transport surface 88b of the negative mask 88 in the direction of arrow C in the figure. The aforementioned image detection optical sensor 87
The image portion of the film 2 detected by the
The positioning is stopped at a. FIG. 9 (a)
The opening 88a has a longitudinal dimension X and a short-side dimension Yf, and corresponds to the full-size piece 2b.
It has a first opening dimension. Panorama size piece 2c
The dimensions of the opening corresponding to are, as shown in FIG. 9B, a dimension X in the longitudinal direction and a dimension Yp in the short side direction. This dimension is
This corresponds to the size of the second opening. Longitudinal dimension X
Is the same dimension in both the full size and the panorama size, but the dimension Y in the short side direction in the panorama size is
p is shorter than in the case of full size. Therefore, in order to print and expose the panorama-sized piece 2c, the opening 88a is required.
The upper part and the lower part in the longitudinal direction must be shielded so as to have the second opening size.

With reference to FIGS. 10 to 13, a specific configuration of the opening changing means for realizing the second opening size will be described. Light shielding plate 30 functioning as first light shielding member
Has a light-shielding piece 30a in the form of an elongated rectangular flat plate extending in a direction parallel to the direction in which the film is transported, and further has a side surface 30b at one longitudinal end and a side surface 30c at the other longitudinal end. The light shielding piece 30a and the side surface 30
b and 30c are connected in a substantially U-shape. The side surfaces 30b and 30c have a flat plate shape orthogonal to the film transport direction. The end face 30d of the light-shielding piece 30a serves as a panoramic-sized opening. The side surface portion 30b is further provided with an elongated hole portion 30e, a gear portion 30g functioning as a first gear, and a contact portion 30h. Similarly, a hole 30f is formed on the opposite side surface 30c.
, A gear portion 30g 'functioning as a first gear, and a contact portion 30h'. Gear parts 30g and 30
g 'and the contact portions 30h and 30h' have substantially the same shape. The center of the long hole 30e and the hole 3
The line connecting 0f functions as the first axis, and is parallel to the transport surface and transport direction of the film.

On the other hand, the second light-shielding member also has the same shape as the first light-shielding member, and the light-shielding plate 50 functioning as the second light-shielding member has an elongated rectangular flat plate shape extending in a direction parallel to the film transport direction. Having a light shielding piece 50a,
Further, a side portion 50b is provided at one end in the longitudinal direction, and a side portion 50c is provided at the other end in the longitudinal direction.
The side surfaces 50b and 50c are connected in a substantially U-shape. The side surfaces 50b and 50c have a flat plate shape orthogonal to the film transport direction. End face 50d of light shielding piece 50a
Is designed to serve as a panoramic-sized opening. The side surface 50b is further provided with a hole 50e, a gear 50g functioning as a first gear, and a contact portion 50h. Similarly, a hole 50f and a gear 50g 'functioning as a first gear are formed on the opposite side surface 50c.
A contact portion 50h 'is provided. Gear part 50g and 5
0g 'and the contact portions 50h and 50h' have substantially the same shape. A line connecting the center of the elongated hole 50e and the hole 50f functions as a second axis, and is parallel to the transport surface and the transport direction of the film.

The first shaft center and the second shaft center are separated from each other by an appropriate distance for meshing and connecting the gear portion 30g and the gear portion 50g, and the gear portion 30g 'and the gear portion 50g'. . Further, the second opening dimension for the panorama size determined by the end face portions 30d and 50d by the contact between the contact portions 30h and 50h, and between the contact portions 30h 'and 50h'. It comes to be accurate. The light shielding plates 30 and 50 are formed by pressing a metal plate such as SUS304. Also, this light shielding plate 3
The reference numerals 0 and 50 indicate the improvement of the reliability of light shielding and the end face portions 30d and 50.
It is desirable to paint or plate black in order to suppress the reflection of light at d.

Next, a mechanism for supporting the light shielding plates 30 and 50 will be described. The drive shaft 31 is integrally connected to the elongated hole 30e. One end 31a of the drive shaft 31 has an oval protrusion 31a that can be fitted into the elongated hole 30e, and the drive shaft 31 and the light shielding plate 30 are integrally coupled by a coupling method such as caulking. Further, the other end 31b of the drive shaft 31 is connected to a non-connection plate 35 described later. By connecting the drive shaft 31 and the light shielding plate 30 with the elongated hole 30e and the oval-shaped projection 31a, it is possible to reliably transmit the driving force from the solenoid 48 described later. The drive shaft 31 is rotatably supported by a holding metal 33 fixed to the lower unit 8. A pin 32 fixed to the lower unit 8 is fitted into the hole 32f, and the light shielding plate 30 is rotatably held. A pin 51 fixed to the lower unit 8 is fitted into the hole 50e, and the light shielding plate 50 is rotatably held. An oval projection 52a formed at one end of the pin 52 rotatably held by the lower unit 8 is configured to be fitted into the long hole 52f, and is connected to the pin 52 by a coupling method such as caulking. The light shielding plate 50 is integrally connected.

Next, a driving means and a mechanism for transmitting the driving force of the driving means to the light shielding plates 30 and 50 will be described with reference to FIGS. In FIG. 12, a solenoid 48 is arranged as an example of the driving means, and its reciprocating portion 48a moves straight in the direction of the arrow. The transmission plate 45 is rotatably supported on a pin 46 fixed to the support plate 47,
The reciprocating portion 48a and the transmission plate 45 are rotatably supported by pins 48b. The transmission plate 45 has a bent portion 4
5a is provided. The transmission rod 42 has an elongated rod shape, and a sliding hole 44a provided in the support base 44 is inserted into the transmission rod 42 in FIG.
Is slidable in the direction of the arrow. The lower end 42a of the transmission rod 42 has a substantially spherical shape and is always in contact with the bent portion 45a of the transmission plate 45. Upper end 42 of transmission rod 42
The push-up member 40 is connected to b. Lifting member 40
13, a sliding hole 40c is provided as shown in FIG. 13, and an upper end portion 42b is slidably fitted in the sliding hole 40b. A compression spring 41 is disposed in the sliding hole 40c, and constantly urges the push-up member 40 in the direction of the arrow in FIG. Further, the pin 43 provided at the upper end and the slot 40a provided in the push-up member 40 prevent the push-up member 40 from falling off the transmission rod 42. The push-up member 40 has a tip portion 40b having a substantially spherical shape.

The connecting plate 37 has an elongated flat plate shape, and is rotatably supported by a support pin 39 fixed to the lower unit 8. The connecting plate 37 is urged by a return spring 38 in the direction of the arrow (counterclockwise) shown in FIG. The lower surface of the bent portion 37 a provided on the connecting plate 37 is located at a position facing the distal end portion 40 b of the push-up member 40. In the state of FIG. 12A, a slight gap is provided between the lower surface of the bent portion 37a and the tip portion 40b. A slot 3 is provided at the end of the connecting plate 37 opposite to the shaft support.
7b is provided. A connected plate 35 is coupled to the other end 31b of the drive shaft 31 by caulking or the like.
And the connected plate 35 rotate integrally. A pin 36 is provided on the connected plate 35, and is connected to the slot 37 b of the connecting plate 37. With this connection, the rotation of the connecting plate 37 is transmitted to the connected plate 35.

Next, the operation of the opening changing means will be described. FIG. 10 and FIG. 12A show a state in which a full-size frame is printed and exposed. In this case, the light shielding pieces 30a and 50a of the light shielding plates 30 and 50 are retracted from the opening 88a of the mask 88, and are referred to as retracted positions for convenience of explanation. FIGS. 11 and 12B show a state in which a panorama-size frame is printed and exposed. In this case, the light shielding pieces 30a, 50 of the light shielding plates 30, 50
“a” shields a part of the opening 88 a of the mask 88 from light, and this is referred to as a light shielding position for convenience of explanation.

When a full-size frame is exposed by printing,
The opening 88a of the mask 88 functions as an opening having the first opening size. The light shielding plates 30 and 50 are located at the retracted positions so as not to block the optical path for printing and exposing the full-size frame. At the retracted position, the solenoid 48 is in a non-energized state. The light shielding plates 30 and 50 are respectively located at the retracted positions, and the connecting plates 35 and 50 are
The light-shielding plates 30 and 50 are urged to the retracted position via the connected plate 37. That is, in FIG. 10, the light shielding plate 30 is urged clockwise and the light shielding plate 50 is urged counterclockwise. When the printing exposure of the full-size piece is completed, the film is conveyed, and the piece to be printed next is located in the opening 88a of the mask 88. Here, if the frame to be printed next is a panorama-size frame, the opening size is changed.

First, the solenoid 48 is changed from the non-energized state to the energized state. As a result, the advance / retreat portion 48a is
It moves in the arrow direction of (b). In conjunction with this, the transmission plate 45 rotates in the direction of the arrow (clockwise) in FIG. 12B around the pin 46 as the rotation center, and the bent portion 45a moves the transmission rod 42 in the direction of the arrow (upward). Move straight ahead. Then, from the time when the bent portion 37a and the tip portion 40b come into contact with each other, the connecting plate 3
7 rotates around the support pin 39 in the direction of the arrow (clockwise) in FIG. 12B against the urging force of the return spring 38. Then, in conjunction with the rotation of the connecting plate 37, the connected plate 35 is rotated in the direction of the arrow (counterclockwise), and the drive shaft 31 that rotates integrally with the connected plate 35 also rotates in the same direction.
The compression spring 41 plays a role of a damper that absorbs an impact when the distal end portion 40b contacts the bent portion 37a. As a result, the driving force of the solenoid 48 is smoothly transmitted, and the impact force is transmitted to the light shielding plates 30 and 50, thereby preventing a large load from being applied.

Thus, the light shielding plate 30 rotates counterclockwise from the state shown in FIG. And the gear parts 30g and 50
g, and 30g 'and 50g' mesh with each other, so that the light shielding plate 5
0 rotates clockwise in FIG. When the light shielding plates 30 and 50 rotate by a predetermined angle, FIGS.
As shown in (b), the contact portions 30h and 50h and the contact portions 30h 'and 50h' make contact, and the rotation of the light shielding plates 30 and 50 is stopped at the light shielding position. In this state, the opening dimension Yp (see FIG. 9) in the short side direction for the panorama size is determined by the end face portions 30d and 50d. Since the size of the opening in the long side direction for the panorama size is the same as that of the full size, it is determined by the size X in the longitudinal direction of the opening 88a of the mask 88 for the full size (see FIG. 9). This FIG.
In the state of 3, the size of the second opening, which is the size of the opening for the panorama size, is realized. In the light shielding position, the light shielding piece 30
a, 50a are held substantially parallel to the film transport surface 88b. In this light shielding position, the compression spring 41 is in a slightly compressed state.

Next, in order to drive the light shielding plates 30 and 50 from the light shielding position to the retracted position, the solenoid 48 may be changed from the energized state to the non-energized state. Thereby, each member operates in the reverse manner as described above. That is, the forward / backward portion 48a of the solenoid 48
12B, the transmission plate 45 rotates counterclockwise in FIG. 12B, and the transmission rod 42 also moves downward and returns. Transmission rod 42
The distal end portion 40b of the push-up member 40 also moves in a direction away from the bent portion 37a in conjunction with the movement of. Therefore, the connecting plate 37
12B is rotated counterclockwise in FIG. 12B by the urging force of the return spring 38, and the connected plate 35 and the drive shaft 31 are also rotated and returned clockwise.

With the rotation of the drive shaft 31, the light shielding plate 3
0 and 50 are also rotated toward the retracted position, and return to the retracted positions in FIGS. 10 and 12A. The controller CO stores whether the frame of the film 2 is the full-size frame 2b or the panorama-size frame 2c from the image information obtained from the scanner unit transport unit U1. Therefore, since the size of the frame to be printed next can be determined in advance, the energized state and the non-energized state of the solenoid 48 are controlled by the controller CO based on this information.

As shown in FIG. 10, the first axis and the second axis of the light shielding plates 30, 50 are separated from the film transport surface 88b by a distance H. If H is increased, the angle at which the light shielding plates 30 and 50 rotate between the retracted position and the light shielding position becomes smaller. By reducing the rotation angle, the required driving energy is also reduced, and the load on the solenoid 48 is also reduced. In addition, the light shielding plates 30 and 50 can be easily attached by disposing the shaft core at a position away from the film transport surface. Therefore, an optimal design value is selected in consideration of the size of the apparatus of the exposure transport unit U2. Also, regarding the distance W between the first axis and the second axis, the light shielding pieces 30a and 50a are positioned at the light shielding position by the film transport surface 88.
It is desirable to be parallel to b. Shielding pieces 30a, 50
Assuming that the width of a is d, it is desirable to dispose the first axis and the second axis on the center line of the width d at the light shielding position. Therefore, the preferable distance W between the shaft centers is shown in FIG.
As shown in FIG. 1, it is set to be shorter than the short side dimension Yf for the full size and longer than the short side dimension Yp for the panorama size. Based on this dimension W, specific specifications of the gear portions 30g and 50g are determined.

[Another Embodiment] Another embodiment will be described below.
In the above embodiment, a 135 mm type negative film has been described. However, the present invention is not limited to this, and can be applied to other various types of films. Further, the present invention can be applied not only to a negative film but also to a positive film. As for the size of the frame of the film, the full size and the panoramic size have been described, but the present invention is not limited to these two sizes, and can be applied to various sizes. For example, it can be applied to a film in which a full size and a high definition size are mixed. Further, the present invention can be applied to a film in which full size and half size are mixed. In such a case, the first axis and the second axis may be arranged in a direction perpendicular to the film transport direction.

In the above embodiment, a film in which the full size and the panorama size are mixed in one film has been described. However, the film in which only the full size frame is imprinted or only the panorama size frame is imprinted. It goes without saying that the present invention can be applied to a film that is included.

In the above embodiment, an apparatus capable of supporting two types of sizes, a full size and a panoramic size, has been described. It is also possible. That is, if the light shielding plate can be stopped not only at the retracted position and the light shielding position but also at an intermediate position therebetween, three or more kinds of opening dimensions can be obtained.

In the above embodiment, the size of the first opening is determined by the opening of the mask, and the size of the second opening is determined by the mask and a pair of light shielding members. However, the present invention is not limited to this. Instead, the configuration may be such that both the first opening size and the second opening size are determined only by the pair of light shielding members.

In the above embodiment, the light shielding member is manufactured by press-molding a metal. However, the light-shielding member may be manufactured by molding a plastic resin. Plastic has an advantage in that the light-shielding member can be formed lighter than metal, so that the energy required to drive the light-shielding member can be reduced.

In the above embodiment, the gear portion is formed integrally with the light shielding plate. However, the present invention is not limited to this. Only the gear portion is a separate component, and the light shielding plate and the gear portion can be integrally rotated. May be. With a separate component configuration, the light-shielding plate can be manufactured by metal press molding, and the gear portion can be plastic molded. In the case where the thickness of the light shielding piece is reduced and the tooth width of the gear portion is increased, there is an advantage that a separate part is provided.

In the above embodiment, the solenoid has been described as the driving means.
A pulse motor, a DC motor, or the like may be used.

Incidentally, reference numerals are written in the claims for convenience of comparison with the drawings, but the present invention is not limited to the structure of the attached drawings by the entry.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram according to an embodiment of a photographic printing apparatus to which the present invention is applied.

FIG. 2 is a perspective view of a main part according to the embodiment of the present invention.

FIG. 3 is a perspective view of a main part according to the embodiment of the present invention.

FIG. 4 is a plan view of a main part according to the embodiment of the present invention.

FIG. 5 is an explanatory diagram of an operation of a main part according to the embodiment of the present invention.

FIG. 6 is an operation explanatory view of a main part according to the embodiment of the present invention.

FIG. 7 is a plan view of a main part according to the embodiment of the present invention.

FIG. 8 is a diagram of a film used in an embodiment of the present invention.

FIG. 9 is an enlarged view of a negative mask according to the embodiment of the present invention.

FIG. 10 is an enlarged cross-sectional view of a main part according to an embodiment of the present invention.

FIG. 11 is a sectional view of a main part according to an embodiment of the present invention.

FIG. 12 is an operation explanatory view according to the embodiment of the present invention.

FIG. 13 is a partially enlarged explanatory view according to an embodiment of the present invention.

FIG. 14 is an enlarged perspective view of a main part according to the embodiment of the present invention.

FIG. 15 is an enlarged perspective view of a main part according to the embodiment of the present invention.

[Explanation of symbols]

 2 Film 2b, 2c Frame 30 Shading plate 50 Shading plate 88a Opening SC, EX Film processing means

Claims (5)

(57) [Claims] 1. A film processing apparatus having an opening changing means for changing an opening size of an exposure opening for printing and exposing a frame (2b, 2c) of a film (2) located at a printing exposure processing position. The opening changing means includes: a first light blocking member (30) rotatable around a first axis parallel to the film transport surface; and a first light blocking member (30) integrally rotated with the first light blocking member (30). Gears (30g, 30g ') and the first
Second pivotable about a second axis parallel to the axis
A light-blocking member (50), and a second gear (50g, 50) that rotates integrally with the second light-blocking member (50) and is meshed and coupled with the first gear.
g ′) and driving means (4) connected to the first light blocking member (30).
8), wherein the opening size is changed by driving the driving means (48). 2. The driving means (48) determines the size of the opening by a first opening having a predetermined area and the first opening.
The first light-blocking member (30) and the second light-blocking member (50) are configured to be switchably driven to a second opening having a smaller area than the opening. When switching to the second opening size, the first contact portions (30h, 30h ') provided on the first light shielding member (30) and the second light shielding member (5
The second contact portion (50h, 50h ') provided in (0) is configured to be in contact with the second contact portion (50h, 50h') so that the size of the second opening portion is determined. Film processing equipment. 3. The first light shielding member (30) and the first gear (30g, 30g ') are integrally formed, and the second light shielding member (50) and the second gear (50g, 50g') are integrated. The film processing apparatus according to claim 1, wherein the film processing apparatus is formed. 4. The film processing apparatus according to claim 1, wherein the first light-shielding member (30) and the second light-shielding member (50) are formed of the same component. 5. The first shaft center and the second shaft center are arranged at positions separated from a film transport surface, and the first shaft center and the second shaft center
5. The distance according to claim 1, 2, 3, or 4, wherein a distance between the axis of the first axis and the axis of the second axis is shorter than a dimension of the dimension of the first opening in a short side direction. Film processing equipment.