JPH0525103B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a variable mask structure for a segmented photographic device that uses an image displayed on an image display device to expose multiple locations on a film to divide the film surface. Regarding.

[Background Art] In the field of medical diagnosis, devices are used that divide images displayed on a monitor television onto a single film.

As this photographing device, the device disclosed in Japanese Patent Laid-Open No. 55-60937 is known. In this device, the film is placed above a monitor TV with the display surface facing upward, a photographic lens is placed between the film transport device and the monitor TV, and the film can be moved by the transport device. in,
The monitor television is movable parallel to the film transport surface, and by moving the film and the monitor television relative to each other, a plurality of images can be divided and photographed on the film surface.

In this split photography device, the film surface is arranged horizontally and the image from the monitor TV below is exposed vertically upward, so there is a risk that the film may bend in the middle, making accurate imaging impossible. There is.

Furthermore, even with a splitting photographic device that arranges the film vertically, it is difficult to maintain the flatness of the film by constantly holding both the upper and lower ends of the film because the film is moved up and down depending on the shooting position where the film is to be split. It's getting old. Particularly when the image obtained by dividing the image is large, it is difficult to maintain flatness.

SUMMARY OF THE INVENTION In view of the above-mentioned circumstances, the present invention aims to provide a variable mask structure for a segmented photographic device that can reliably hold the edge of the exposure frame of the film and maintain the flatness of the film.

[Summary and operation of the invention] The variable mask structure for a divided photographic device according to the present invention as set forth in claim 1 is applicable to a divided photographic device that exposes a displayed image on an image display device to a plurality of locations on a film surface. , a pressing means disposed on the back surface of the film on the exposure path and capable of approaching and separating linearly in a direction perpendicular to the film movement locus, and an exposure surface of the film located on the upstream and downstream sides of the film movement direction with respect to the exposure axis. A pair of masking rollers sandwiching the film between the holding means arranged in correspondence with each other and close to each other, and these pair of masking rollers being approached and separated from each other by an equal distance around an exposure axis. A mask of an arbitrary size can be formed by having a guide means for moving the film along a film movement locus in a direction.

In the variable mask structure for a divided photographic device according to the present invention as set forth in claim 2, at least two pressing means are arranged on the exposure axis and sandwiching a back roller arranged on the back side of the film. It is characterized by

According to the present invention having the above-mentioned structure, the holding means disposed on the back surface of the film on the exposure path can linearly approach and separate in a direction perpendicular to the film movement locus. Therefore, when the film moves along its locus of movement, the holding means is kept separated from the locus of movement of the film. In this state, when the film is set at a predetermined position on the exposure path depending on the position of the divided photographing, etc., the holding means approaches the film movement locus. Thereafter, the size of the mask is changed depending on the size of the divided imaging.

That is, a pair of masking rollers arranged on the upstream and downstream sides in the film movement direction with respect to the exposure axis and corresponding to the exposure surface side of the film are moved by a guide means to each other at an equal distance about the exposure axis. The film is moved in the approaching and separating directions along the film movement trajectory. As a result, the size of the mask is changed, and both the upper and lower ends of the photographed image are held between the pair of mask rollers and the presser means, ensuring the straightness of the exposed surface of the film, that is, the flatness of the film. is maintained.

Here, in the present invention, since the holding means is capable of linearly approaching and separating from the film in a direction perpendicular to the film movement locus, when it approaches and leaves the film along a curved line, for example, an arcuate locus, However, according to the present invention, it is difficult to contact the film in a state parallel to the plane of the film, and depending on the error, the flatness of the film may be impaired by the contact of the presser means. Prevented. Therefore, the maintenance of the flatness of the film can be improved by the layered effect of the tension applied to the film by the pair of mask rollers and the holding means.

Further, in the present invention as set forth in claim 2, at least two pressing means are disposed on the exposure axis and sandwiching the back roller disposed on the back side of the film, so that the flatness of the film can be more easily maintained. You can be sure.

[Embodiments of the Invention] FIG. 1 shows a divisional photographic apparatus to which the present invention is applied, in which a large number of films 1 are stored in a film supply section 12 disposed at the upper part of a machine stand 10.
4 is sent to the film transport section 16 and exposed to the exposure device 18.
After being exposed to light, the film is sent to the film storage section 20.

(Configuration of Film Supply Unit 12) A magazine 22 containing a film 14 can be mounted on the upper part of the machine base 10. When the lid 24 of this magazine 22 releases the lower end of the agadine 22, the film 14 is loaded. The tip of the machine is 10
It is adapted to correspond with a suction cup 26 placed inside. The suction cup 26 receives the driving force of the drive device 28 to suck the leading end of the topmost film 14 among the plurality of films 14 in the magazine 22 and feed it between the feed rollers 30 and 32.

The feed rollers 30 and 32 are connected to a motor (not shown), and feed the film 1 from the magazine 22.
4 onto the guide plate 34. The guide plate 34 is arranged such that the tip thereof is inclined upward, and the film 14 once fed onto the guide plate 34 is fed by its own weight from the tail end to the feed rollers 32 and 36. Accordingly, the film 14 is suctioned by the suction cup 26 on the side opposite to the emulsion, taken out onto the guide plate 34, and then held between the feed rollers 32 and 36 and sent to the film transport section 16.

(Structure of Film Transport Section) As shown in FIG. 1, in the film transport section 16, an opening 39 is provided in a standing wall 38 fixed to the machine stand 10, and an exposure path 40 is formed inside the opening. A pair of brackets 42 and 44 shown in FIGS. 2 and 3 are attached to the vertical wall 38 so as to be vertically parallel to each other and spaced apart from each other. A hexagonal bar 4 whose axis is horizontal is attached to these brackets 42 and 44.
6, 47, 48, 49 are passed and bracket 4
The distance between 2 and 44 is kept constant.

Between the hexagonal bars 46 and 47 are guide rollers 50 and 51 and a guide roller 5 for pinching and conveying the film 14 sent from the film supply section 12.
2,53 are pivotally supported. Also, the hexagonal bar 48,
Similarly, guide rollers 56, 57 and 58, 59 are respectively pivotally supported between the rollers 49 and serve to nip and convey the film 14. Reference numeral F in FIG. 2 indicates the transport trajectory of the film 14.

Further, between the hexagonal bars 47 and 48, a pair of back rollers 60 are arranged on the opposite side of the film transport path F.
On the exposure surface side, front rollers 62 and 64 are pivotally supported by brackets 42 and 44, respectively. back roller 60
As shown in FIG. 5, these back rollers 60
The vicinity of both ends of the roller shaft 60A, which supports the front rollers 62 and 60A, is supported by the brackets 42 and 44.
64, roller shafts 62A and 64A are supported in a cantilever manner by brackets 42 and 44, respectively.
Therefore, the film 14 between the front rollers 62 and 64
can face the exposure device 18, and the film 1
An exposure section 40 extending to the emulsion side of No. 4 is secured.
These front rollers 62, 64 or back roller 60 are preferably provided with frictional force increasing means such as rubber or felt having high friction on their outer peripheries.

As shown in FIG. 6, both ends of the roller shaft 60A pass through bearings 66 made of synthetic resin. As shown in FIG. 7, this bearing 66 has a block-shaped portion 66A on one outer periphery in the axial direction and a pulley groove-shaped portion 66B on the other outer periphery, and the block-shaped portion 66A is formed on the brackets 42 and 44. The guide hole 68 is inserted into the guide hole 68. This guide hole 68 is a block-shaped portion 66A.
The roller shafts 64A, 64A are sized so that they can be moved by a slight amount in the direction toward and away from the roller shafts 64A, 64A, and constitute a guide means.
64, respectively.

The outer ring of a ball bearing rig 70 is fixed to the inner circumference of the pulley groove portion 66B, and the inner ring of this ball bearing 70 supports the roller shaft 60A.

A tension coil spring 72 is attached to the pulley groove portion 66B.
The axial middle part of is wrapped around and reversed,
Both ends of this tension coil spring 72 are attached to the bracket 4.
2 and 44, respectively, so that the tension coil spring 72 urges the back roller 60 toward the front rollers 62 and 64 via the bearing 66. However, since the roller shaft 60A is supported by a ball bearing 70, the back roller 60 rotates smoothly and the film 14 can be conveyed between the front rollers 62 and 64.

Guide rollers 50, 52 and guide roller 5
6, 58 roller shafts 50A, 52A, 56A, 5
Similarly to the roller shaft 60A, the roller shaft 8A is also connected to the brackets 42 and 4 via a bearing 66 and a ball bearing 70.
4, and is similarly supported by a tension coil spring 72.
Guide rollers 50, 52, 56, 58 with the urging force of
guide rollers 51, 53, 57, 59, respectively.
It's being pushed to.

As shown in FIG. 8, roller shafts 51A, 53A, 54A, 57A protrude from the bracket 44,
A pulley 74 is fixed to each of the pulleys 59A, and a timing belt 76 is wound around the pulley 74. This timing belt 76 is connected to the bracket 44.
The intermediate portion is bent by a plurality of tension pulleys 78 that are pivotally supported, and the other intermediate portion is wound around an output shaft pulley 80, which is connected to the motor fixed to the bracket 44. 82
is fixed to the output shaft 84 of. Therefore motor 8
2 can transmit the rotational force to each guide roller and front roller 64 via the timing belt 76.

As shown in FIG. 9, a pulley 86 is fixed to a roller shaft 57A protruding from the bracket 42, and a timing belt 88 is wound around the roller shaft 57A. The intermediate portion of the timing belt 88 is wound around a tension pulley 90 and a pulley 92 fixed to the roller shaft 62A. Therefore, the rotation of the motor 82 is also transmitted to the front roller 62 via the roller shaft 57A and the timing belt 88, and both ends of the film 14 in the width direction are connected between the back roller 60 and the front roller 62, and between the back roller 60 and the front roller 64. It will be transported while being held.

As shown in FIGS. 3 and 10, the hexagonal bar 4
7 and 48 have a pair of guide plates 94 and 96, respectively.
One end is fixed. These guide plates 9
Reference numerals 4 and 96 correspond to both ends in the width direction of the film 14 being conveyed, and the other end corresponds to the brackets 42 and 4.
a pair of hexagonal bars 98, each protruding from 4;
It is fixed to the tip of 100. These guide plates 94 and 96 are adapted to guide both widthwise ends of the emulsion side, which is the surface facing the exposure path, of the film 14 being transported.

These guide plates 94 and 96 are provided with pressure plates 102 and 102, which are holding means shown in FIGS. 2 and 11.
104 is brought into contact with the film 14 from the side opposite to the emulsion, sandwiching the film 14 therebetween, and supporting the film 14 during exposure. Support brackets 106 and 108 are fixed to the back surfaces of these crimp plates 102 and 104, respectively, and these support brackets 106 and 108 are attached to pins 110.
The lever 112 is pivotally supported at one end of the lever 112.

The intermediate portion of the lever 112 is attached to the machine base 10 of FIG. 1 by a pin 114 via a base plate 116. The other ends of the pair of levers 112 are connected to each other by a pin 118.
A tension coil spring 120 is interposed between 18 and the base plate 116. Therefore, lever 11
2, the crimp plates 102 and 104 are respectively connected to the guide plate 9.
4 and 96 to sandwich the film 14.

A plunger 122 projects behind the support brackets 106, 108 and passes through a solenoid 124 attached to the base plate 116.
This solenoid 124 is energized when the film 14 is conveyed, and moves the pressure bonding plates 102, 104 to the guide plate 94,
At the time of exposure, the excitation force is canceled and the compression plates 102 and 104 are pressed against the guide plates 94 and 96 by the biasing force of the tension coil spring 120.

As shown in FIG. 3, masking rollers 126 and 128 are arranged above and below the front rollers 62 and 64, and their axes are horizontal. These mask rollers 126, 128 have roller shafts 126A, 128.
It is pivoted to A and can rotate freely. Both ends of these mask rollers 126 and 128 are connected to the moving block 13 on the outside of the guide plates 94 and 96.
It is attached to 0,132. Guide rods 134, 136 of linear guide means, whose axes are fixed perpendicularly to the brackets 42, 44, pass through the moving blocks 130, 132, and the guide rods 134, 136 are inserted through slide bearings 135.
It is designed to be able to move linearly in the axial direction of 136.

The moving blocks 130, 132 are each fixed to a timing belt 138, and this timing belt 138 is wound around pulleys 140, 142. supported. A pulley shaft 142A supported by the bracket 42 is connected to a motor 144, and rotational force is transmitted by the motor 144.

The attachment of the moving blocks 130, 132 and the timing belt 138 will be explained using the moving block 132 as shown in FIG. 13 as an example. L-shaped plate 146 fixed to moving block 132
A mounting plate 152 is fixed to the tip of the plate with screws 148 and nuts 150.
The timing belt 138 is sandwiched between the mounting plate 152 and the L-shaped plate 146. The mounting plate 152 has elongated holes 154 for accommodating a plurality of timing protrusions of the timing belt 138. Therefore, the moving block 132 is securely connected to the timing belt 138.
It is fixed to the middle part of.

As shown in FIG. 10, the moving block 130 has an L-shaped plate 146, contrary to the case shown in FIG.
Mounting plate 152 near moving block 130
is installed.

In this way, the moving blocks 130 and 132 are attached to one and the other of the straight portions of the timing belt 138, which are arranged in parallel between the pulleys 140 and 142, and the mask rollers 126 and 128 are attached to the axes of the front rollers 62 and 64. placed equidistant from the heart. As a result, these constitute a guide mechanism in opposite directions, so that when the motor 144 rotates, the mask rollers 126 and 128 move toward and away from the exposure axis by the same distance, and are thereby placed on the exposure path. The emulsion side of the film 14 is attached to the pressure bonding plate 10.
2 and 104, and move toward and away from the exposure axis according to the size of the divided shooting, and hold the periphery of the exposure area on the film together with the pressure bonding plates 102 and 104 to hold the film 14 in a straight state. ing.

The guide mechanism in the opposite direction is the mask roller 12.
The mask rollers 126, 128 are not limited to being arranged on both sides of the mask rollers 126, 128 in the axial direction, but may be provided only on one side of the mask rollers 126, 128 in the axial direction, and no driving force is applied to the other side.

(Configuration of Exposure Apparatus) As shown in FIG. 1, a monitor television device 156, which is an image display device, is mounted on a movable table 158, and this movable table 158 is supported by a guide bar 164 via a bracket 160. . The axis of this guide bar 164 is horizontal,
The exposure length between the monitor television device 156 and the film 14 on the exposure path is changed.

As shown in FIG. 14, the moving table 158 moves in a direction perpendicular to the plane of the paper in FIG. 1 along a guide bar 166 that extends over the bracket 160, so that the film 14 on the exposure path can be moved in the width direction. It's summery.

Therefore, the monitor television device 156 can move in the left-right direction and in the right-angle direction of the paper in FIG. It is now possible to expose the captured image.

A photographing lens 172 and a shutter 174 are arranged in the middle of a cover 170 that stands up from the monitor television device 156, and a reflecting mirror 176 and a flange 178 facing toward the film transport section 16 are provided at the top of the cover 170. There is.

Between the flange 178 and the standing wall 38 there is a 15th,
Bellows 18 as a telescopic tube also shown in Figure 16
0 is attached. The bellows 180 has the role of blocking external light from entering the film 14 on the exposure path even when the monitor television apparatus 156 moves along the guide bar 164 and changes the exposure length.

Also, as shown in FIGS. 15 and 16, the flange 1
Reference numeral 78 is formed in the shape of a frame having a rectangular opening to constitute a guide frame, and the mask frame 182 is movable within this flange 178 in the longitudinal direction of the flange 178 . Therefore, this mask frame 1
Reference numeral 82 corresponds to the movement of the monitor television device 156 in the film width direction, and is interlocked with the monitor television device 156.

Expandable pieces 18 are provided on both sides of this mask frame 182.
4,186 are attached at one end, and their other ends are attached to opposite sides of the interior of flange 178. In addition, the mask frame 182 and the elastic piece 18
Both upper and lower ends of 4,186 are attached to the flange 178 by being disposed between a stopper 188 projecting inward of the flange 178 and an angle iron 192 fixed to the inner side of the flange 178 with screws 190.

(Structure of Film Storage Section) As shown in FIG.
A chute 198 is arranged to guide the film 14 from the guide rollers 194 and 196, and the film 14 is accommodated in a magazine 200 mounted at the bottom of the machine base 10. When a predetermined number of films 14 are stored in the magazine 200, the lid 202 is closed, and the magazine 200 is taken out from the machine base 10 and sent to the developing process.

(Operation of the Embodiment) As shown in FIG. 1, the magazine 22 containing a plurality of films 14 is mounted on the upper part of the machine base 10, and the lid 24 is opened.

The driving device 28 drives the suction cup 26 to suck the uppermost film 14 among the plurality of films 14 and feed the leading end to the feed rollers 30 and 32.

Feed rollers 30 and 32 feed the film 14 onto a guide plate 34 in response to the driving force of a motor (not shown). The weight of the film 14 sent to the guide plate 34 causes the feed roller 3 to move from the end of the film 14 to the guide plate 34.
It enters between 2 and 36. Feed roller 32, 3
Reference numeral 6 sends out the film 14 to a film transport section 16 by the rotational force of a motor (not shown).

In the film transport section 16, guide rollers 50, 5
1 and guide rollers 52, 53, the film 14 hangs down and is placed on the exposure path, and both sides are held between the back roller 60 and front rollers 62, 64 and held on the exposure path. Film 1 like this
4 is sent into the film transport section 16, the pressure plates 102, 104 shown in FIG. 2 are spaced apart from the guide plates 94, 96.

The film 14 is moved up and down within the film transport section 16 depending on the size and position of the required divided photography. That is, when photographing the lower part of the film 14 in parts, the part slightly above the lower end of the film 14 is held between the back roller 60 and the front rollers 62, 64, and the part near the upper end is held by the guide rollers 52, 53 and the guide roller 50. , 51. Further, when the film 14 is exposed near the upper end, the back roller 60 is located slightly below the upper end.
Front rollers 62 and 64, guide rollers 56 and 57 and guide roller 5 near the lower end of the film 14.
8 and 59, respectively.

In the exposed state, the excitation of the solenoid 124 is canceled, so the tension coil spring 120 is connected to the crimp plate 10.
2 and 104 against the guide plates 94 and 96, and press the film 1 along with the back roller 60 and front rollers 62 and 64.
Hold both sides of 4.

At the same time, the mask rollers 126 and 128 are moved up and down by the motor 144 according to the size of the divided image, and the upper and lower ends of the image are attached to the pressure bonding plate 10.
2, 104 to ensure the straightness of the exposed surface of the film 14 and to prevent other parts of the film 14 from being exposed. When not performing divided photography, the masking rollers 126 and 128 move up and down by the maximum amount to press the upper and lower ends of the film 14 against the pressure bonding plate 10.
2,104.

As shown in FIG. 3, the front rollers 62 and 64 are spaced apart from each other to ensure an exposure path, so when the shutter 174 of the exposure device 18 operates, the film 14 between the mask rollers 126 and 128 is exposed. It will be done.

Furthermore, in the exposure device 18, the monitor television device 156 moves in the left-right direction in FIG. Since movement in the width direction is dealt with, reliable exposure is possible even when the monitor television device 156 moves in any direction.

The photographed film 14 is sent from the film transport section 16 to the film storage section 20 by the drive of the motor 82, and is stored in the magazine 200. When the exposure of the plurality of films 14 is completed in the same manner as described above and they are stored in the magazine 200,
The magazine 200 is taken out and sent to a developing process.

In the above embodiment, the front rollers 62, 64
Although the configuration is shown in which the front rollers 62 and 64 protrude in a cantilevered manner from the brackets 42 and 44, it is also possible for the front rollers 62 and 64 to support both ends thereof.

[Effects of the Invention] As described above, in the variable mask structure for a divided photographic device according to the present invention as set forth in claim 1, the film movement trajectory is such that the film moves toward and away from each other by equal distances around the exposure axis. A pair of masking rollers disposed on the upstream and downstream sides in the film movement direction with respect to the exposure axis are moved by the guide means for moving along the exposure axis, and a pair of masking rollers is moved between the pair of masking rollers and the pressing means. Since the film is sandwiched, it is possible to reliably maintain the flatness of the film, which has the excellent effect of enabling accurate imaging.

In addition to the above-mentioned effects, the present invention as set forth in claim 1 is such that the pressing means can be linearly moved toward and away from the film in a direction perpendicular to the movement locus of the film, so that the pressing means does not come into contact with the back surface of the film. It also has the excellent effect of being able to prevent errors from coming into contact with the film surface.

Furthermore, in the variable mask structure for a split photographic device according to the present invention as set forth in claim 2, at least two pressing means are arranged with the back roller sandwiched therebetween, so that the flatness of the film can be maintained more reliably. It has the excellent effect of being able to

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view of a divided photographic device to which the present invention is applied, FIG. 2 is a partially enlarged view of FIG. 1, and FIG.
The figure is the right side view of figure 2, and figure 4 is the - of figure 3.
5 is a sectional view taken along the - line in FIG. 3, FIG. 6 is a sectional view taken along the - line in FIG. 3, FIG. 7 is an exploded perspective view showing a part of FIG. 3 is a right side view of FIG. 3, FIG. 9 is a left side view of FIG. 3, FIG. 10 is a sectional view taken along the - line in FIG. 3 - line sectional view,
Fig. 13 is an exploded perspective view showing the attachment relationship between the moving block and the timing belt, Fig. 14 is a perspective view showing the installation of a monitor television, and Fig. 15 is a sectional view corresponding to the cross section taken along the line of Fig. 1, showing the bellows. , FIG. 16 is an exploded perspective view of FIG. 15. 14...Film, 16...Film transport section,
18... Exposure device, 20... Film storage section, 6
0... Back roller, 62... Front roller, 64... Front roller, 66... Bearing, 68... Guide hole, 70
... Ball bearing, 72 ... Tension coil spring, 102 ... Crimping plate, 104 ... Crimping plate, 12
6...Mask roller, 128...Mask roller, 130, 132...Moving block, 134,
136... Guide rod, 135... Slide bearing, 138... Timing belt, 144
……motor.

Claims (1)

[Claims] 1. In a segmented photographic device that exposes a displayed image on an image display device to multiple locations on a film surface,
a presser means disposed on the back surface of the film on the exposure path and capable of linearly moving toward and away from the film in a direction perpendicular to the film movement locus; a pair of masking rollers that sandwich the film between the holding means and the pressing means arranged correspondingly to and close to each other; and a direction in which the pair of masking rollers are moved toward and away from each other by equal distances about the exposure axis. 1. A variable mask structure for a divided photographic device, comprising: a guide means for moving the film along a film movement trajectory, thereby forming a mask of an arbitrary size. 2. The variable mask for a split photographic device according to claim 1, wherein at least two pressing means are arranged on the exposure axis and sandwiching a back roller arranged on the back side of the film. structure.