JPS62205331A - Film loading device - Google Patents

Abstract

PURPOSE:To hold a film shielded securely from light and to open an aperture by providing a roller which is energized to protrude toward the cover member of a film package and clamping the cover member between the roller and a specific engagement part. CONSTITUTION:A light shield container 40 which contains the film has the engagement part 50 formed by having a nearly columnar tip. A main body part 32, on the other hand, is provided with the cylindrical roller 58 freely rotatably as a light shield means which is energized by a coil spring 59 to protrude. Therefore, when the film package 38 is put in a lid body part 36 and this lid body part is closed, the package 38a and cover member 44 are clamped between the engagement part 50 and roller 58 and shielded from light. Consequently, a light shield state is held securely when the cover member end part 44a is drawn out as shown by an arrow A and the film aperture is opened.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a film loading device, and more particularly to a device into which a film package containing a plurality of sheet films and having a film ejection opening closed with a cover member is loaded. The present invention relates to a film loading device, in which a light shielding means that is displaced toward the cover member is disposed at the loading opening of the film package, and the film is held light-tight by the light shielding means.

2. Description of the Related Art Generally, radiation image films obtained by photographing objects such as human bodies using X-rays are widely used in medical diagnosis and the like. Conventionally, when taking radiographic images using such an X-ray film, the X-ray film is loaded into a radiation imaging device in a light-shielded state, and the emulsion surface of this film is directly irradiated with X-rays. An image of the subject is recorded.

Incidentally, recently, a radiation image recording and repeating system for obtaining a radiographic image of a subject using a stimulable phosphor has been developed and is becoming widespread. Here, a storage phosphor is a material that, when irradiated with radiation (X-rays, α-rays, β-rays, T-rays, electron beams, ultraviolet rays, etc.), stores a portion of this radiation energy and later emits visible light, etc. A phosphor that exhibits stimulated luminescence according to the energy accumulated by irradiation with excitation light.

The radiation image recording and reproducing system described above utilizes this stimulable phosphor, in which radiation image information of a human body, etc. is recorded on a sheet having a layer made of a stimulable phosphor, and then the stimulable phosphor sheet is is scanned with excitation light such as a laser beam to generate stimulated luminescence light, and the resulting stimulated luminescence light is read out photoelectrically to obtain an image signal.Based on this image signal, photosensitive materials, etc. It is used to output a visible image to a recording material, CRT, etc.

Here, when recording an image on a recording material, an image recording device, for example, an image output laser printer device is employed. This device stores X-ray film, which is an image recording material, through a magazine, etc., and after taking out the film one by one using a sheet-fed mechanism such as a suction cup, electrical signals obtained from a stimulable phosphor sheet are collected. The device is configured to direct a laser beam onto the film based on the above information and record a predetermined image. Therefore, the film on which the new image has been recorded is conveyed into an automatic developing device, undergoes a developing process, and then is stored at a predetermined location and used for medical diagnosis, etc., if necessary.

Incidentally, in the image output laser printer device, when loading an X-ray film into the device, the film must not be irradiated with external light, similar to the conventional radiation image capturing device described above.

This is because it will be exposed to light. Therefore, the film loading operation is generally performed in a darkroom, but the efficiency of the loading operation is naturally low. In order to improve the workability mentioned above, loading the film in a normal bright room became strongly desired, and technical ideas to make this possible were developed, for example, in the No. 7931.

In other words, in relation to the prior art, FIG.
This magazine 1 includes a main body part 2 and a lid part 3 hinged to the main body part 2 so as to be openable and closable.
A chamber 4 is defined by these. Holding rollers 5a and 5b are rotatably supported on the main body portion 2 and the lid portion 3, respectively, and are designed to prevent external light from being irradiated into the chamber 4 from the side of the holding rollers 5a and 5b. A light shielding member 6 is provided on the main body portion 2 and the lid portion 3. Further, an opening 7 for taking out a film is formed in the lid 3, and a bent handle 9 is formed at one end of a shutter member 8 provided in the lid 3 for opening and closing the opening 7. ing.

In the above configuration, the film package 10 is housed in the magazine 1. A plurality of unexposed films 12 are stored in the film package 10 while being protected by a cardboard 11, and both ends 10a and 10b of the film package 10 are exposed to the outside from the magazine 1. ing.

Therefore, the case where this film package 10 is loaded into a magazine will be explained.

First, one end 10a of the film package 10 is engaged with the handle 9 of the shutter member 8, and the other end 10b is cut with scissors or the like. Next, as shown in FIG. 1, the magazine 1 is loaded into the X-ray imaging device 13, and the shutter member 8 is pulled out from the magazine 1 by manual operation.

As a result, the film package 10 is attached to the handle 9 and pulled out from the magazine, and since the film package and package 10 are pinched by the pinching rollers 5a and 5b, the inside of the film package 10 is Unexposed film 12 remains in chamber 4. Furthermore, in this case, the chamber 4 in the magazine 1 is opened into the device 13 via the opening 7 . Thereupon, the unexposed film 12 is sucked by the suction cup 14 and conveyed to a predetermined photographing position.

Further, as another conventional technique, there is a device disclosed in Japanese Utility Model Application Publication No. 56-5141. That is, FIG. 2a shows a cross-sectional view of a film package 15 to be supplied to an X-ray imaging device, etc., and this film package 15 includes a light-shielding container 17 which is a housing having an opening 16. A plurality of unexposed films 19 are housed in the light-shielding container 17 while being protected by cardboard pads 18. Further, a flexible light-shielding member 20 is adhered to the opening 16 in a light-tight manner to protect the unexposed film 19 from external light. In this case, one end of the flexible light shielding member 20 is curved vertically upward, and a locking hole 20a is bored in the edge of this one end.

The film package 15 constructed in this way is stored in a magazine 21 shown in FIG. 2 and positioned by a storage section 22. Here, the magazine 21 is provided with a shutter member 23, and after the hole 20a of the flexible light shielding member 20 is engaged with the engagement protrusion 24 implanted at one end of the shutter member 23, , the magazine 21 is loaded into an X-ray imaging device or the like (not shown). Next, the other end of the shutter member 23 is pulled out from the magazine 21 by hand or the like.

As a result, the flexible light-shielding member 20 is peeled off from the light-shielding container 17 by the locking protrusion 24 that engages with the hole 20a, and the opening 16 is opened inside the X-ray imaging apparatus or the like.

Then, the unexposed film I9 is sucked by the vacuum suction device 25 and conveyed to a predetermined photographing position.

However, in the prior art described above, a dedicated magazine must be used to store the film package.

Since this dedicated magazine is repeatedly attached to the image recording apparatus, it needs to be manufactured strongly so that it can withstand long-term use, and as a result, the dedicated magazine itself has a considerable weight. In addition, storing the film package in a special magazine every time a film is loaded into the device forces the operator to perform an extremely troublesome task.
This has the disadvantage of significantly reducing work efficiency. Therefore, it is necessary to prepare in advance a plurality of such magazines in which film packages are housed.

On the other hand, each dedicated magazine must be provided with a shutter mechanism and a light-shielding member to enable film loading in a bright room, and this dedicated magazine inevitably becomes quite expensive.

The present invention has been made to overcome the above-mentioned disadvantages, and is a film loading device into which a package containing a plurality of sheet films and whose film ejection opening is closed by a flexible cover member is loaded. The cover member led out through the loading port of the film package is configured to be held between light shielding means consisting of rollers, and the film is removed when the cover member is peeled from the film package. To provide a film loading device which can be kept light-tight and can load a film in a bright room without using a dedicated magazine conventionally used.

In order to achieve the above object, the present invention provides a film loading device loaded with a film package in which a plurality of sheet films are stacked and stored and the film take-out opening is closed with a cover member. At least one of the loading opening of the film package or the lid portion that closes the loading opening is provided with a light shielding means that is biased to protrude toward the cover member, and the light shielding means allows light to pass through the loading opening to the outside. It is characterized in that it is configured to sandwich the cover member led out in a light-tight manner.

Next, preferred embodiments of the film loading device according to the present invention will be described in detail below with reference to the accompanying drawings.

3 and 4, reference numeral 30 indicates a film loading device according to the present invention, and this film loading device 3
0 constitutes, for example, an input section of a sheet film in an image recording apparatus. In this case, the film loading device 3
0 basically comprises a main body part 32 on the side of the image recording apparatus and a lid part 36 which is pivotally attached to the main body part 32 and opens and closes the loading opening 34 of the film package 38.

Here, the film packaging body 38, as shown in FIG.
A light-shielding container 40 that stores a plurality of sheet-like films F in a stacked state, and a flexible cover member 4 that closes a film removal opening 42 in the light-shielding container 40.
It consists of 4.

In the light-shielding container 40, a portion of the periphery of the film removal opening 42 bulges outward to form a protruding end 46. Further, on the side surface of the light-shielding container 40 on which this protruding end 46 is formed, there is a protrusion 4 that protrudes by approximately the same length as the protruding end 46.
8 is formed. On the other hand, a retaining part 50 is formed on the peripheral edge of the film take-out opening 42 facing the protruding end 46 and bulges outward and has a substantially cylindrical tip. In this case, the length of the cover member 44 to be adhered to the film take-out opening 42 is slightly more than twice that of the light-shielding container 40, and the length is bent at the protruding end 46 side so that the end 44a of the cover member 44 forms an engaging portion. 50 side.

Therefore, the lower end portion of the lid portion 36 is pivotally attached to the main body portion 32 via the hinge member 52 in a freely rotatable state.

Mounting stands 54a and 54b, which are mounting stands for the film package 38, are attached to the lower end and upper end sides of the lid body part 36. In this case, when the loading port 34 is closed, the pedestals 54a and 54b are connected to the opening 4 for taking out the film of the film package 38.
2 is arranged so as to be oriented diagonally upward.

A hole 5 is provided on the lower end side of the lid body part 36 to support the protruding end part 46 of the light-shielding container 40 and into which the protruding part 48 fits.
6a is formed. Here, when the loading port 34 is closed, the protruding end 46 is provided on the main body 32 side.
A mito switch 51 is provided to detect that the package 38 has been loaded. In addition, the lid body part 36
A first light shielding block 55 is attached to the upper end, and a second light shielding block 5 that is close to the first light shielding block 55 is attached to the main body 32 side when the loading port 34 is closed.
7 is attached.

On the other hand, near the second light shielding block 57 on the main body portion 32 side, a light shielding means, that is, a cylindrical roller 58, which is biased to protrude by a coil spring 59, is rotatably provided. The roller 58, as shown in FIG.
Both ends thereof are rotatably supported by one end of a bearing 61. A plate body 61a is formed at the other end of the bearing 61, and this plate body 61a has a chamber 63 defined on the main body 32 side.
It is pressed by a coil spring 59 housed inside. Therefore, the roller 58 is urged to protrude toward the lid portion 36 by the coil spring 59 via the bearing 61.

A shutter member 60 is disposed on the main body 32 side, and a bent thin plate-shaped shutter 62 is engaged with the tip of the shutter member 60. This shutter 62 is
It opens and closes a film transport port 64 defined on the second side, and a suction cup 66 that constitutes a suction mechanism for transporting the film F to the next stage image recording section is inserted into this film transport port 64. do.

The film loading device of this embodiment is basically constructed as described above, and its operation and effects will be explained next.

First, the lid body part 36 is rotated around the hinge member 52,
The loading port 34 is opened as shown in FIG. Next, the film package 38 is loaded into the lid part 36. in this case,
The light-shielding container 40 is brought into contact with the pedestals 54a and 54b, and
The protrusion 48 of the light-shielding container 40 is inserted into the hole 56a of the engagement member 56.
to fit. As a result, the protruding end 46 side of the film package 38 is engaged by the engaging member 56, and the film package 38 is loaded into the lid part 36 in an inclined state. Here, the light-shielding container 4
Cover member 4 that closes the film removal opening 42 of 0
4 takes out its end portion 44 a to the outside of the lid body portion 36 via the engaging portion 50 of the light-shielding container 40 .

Lid body part 3 loaded with film package 38 in this way
6 is rotated around the hinge member 52, and the loading port 34
is occluded. In this case, the engaging portion 50 of the film package 38 is connected to the roller 5 on the main body portion 32 side through the cover member 44.
Press 8. On the other hand, the roller 58 is connected to the coil spring 5
9 to protrude toward the lid body part 36,
As a result, the cover member 44 is held between the engaging portion 50 and the roller 58 without any gap. Further, the end portion 44a of the cover member 44 is led out to the outside of the film loading device 30 while being held between the first and second light shielding blocks 55,57. Therefore, the inside of the film loading device 30 is completely shielded from light by the lid 36 and the roller 58.

On the other hand, the protruding end portion 46 of the film package 38 loaded into the film loading device 30 is disposed on the main body portion 32 side, or a Mitswitch 51 is actuated. As a result, it is detected that the film package 38 is loaded into the film loading device 30, and there is no possibility that the loading port 34 will be opened inadvertently and the film F will be exposed.

Next, when the end portion 44a of the cover member 44 is grasped and pulled out in the direction of arrow A, the cover member 44 is held between the engaging portion 50 and the roller 58 and is opened at the film ejection opening of the light-shielding container 40. It is peeled off from 42. in this case,
The cover member 44 is smoothly pulled out from the film loading bag W30 by the rotation of the roller 58. As a result, the film removal opening 42 is opened into the film loading bag W30 without being exposed to external light. In addition, since the protrusion 48 formed at the end of the light-shielding container 40 engages with the engagement member 56 of the lid body 36, the cover member 44
During the peeling operation, the end portion of the light-shielding container 40 does not move, so that the cover member 44 can be peeled off more effectively.

Further, the cover member 44 is attached to the light-shielding container 4 over a predetermined length.
If the shutter member 60 is pulled out in the direction of arrow B after peeling from the film 0, the shutter 62 is displaced, and as a result, the film ejection opening 42 of the film package 38 is directed toward the film transport port 64 of the film loading device 30. It will be released. Next, the suction cup 66 is driven to sequentially feed the film F stored in the light-shielding container 40 to a transport mechanism (not shown), and then the film F is transferred to the image recording section.
Image recording is performed.

FIG. 7 shows another embodiment of the light shielding means in the film loading device 30, in which the lid portion 36 is loaded with a film package 70. On the other hand, a bearing 72 is attached to the main body 32 of the film loading device 30.
A rotating shaft 76 of a roller 74 is fitted into a long hole 72a formed in the roller 2. The rotating shaft 76 is connected to the lid 3 by two coil springs 73a and 78b whose ends are locked to the main body 32 side of the loading port 34 which is closed by the lid 36.
6. As a result, the roller 74 is biased to protrude toward the lid portion 36 side. On the other hand, a roller 82 is pivotally attached to the upper end side of the lid portion 36 via a support plate 80 .

Therefore, the end portion 84a of the cover member 84 that closes the film take-out opening of the film package 70 is guided out of the film loading device 30 via the roller 82 when the loading port 34 is opened. Then, when the lid body part 36 is closed, the roller 82 is pressed by the roller 74 on the main body part 32 side via the cover member 84, and the roller 74 is pushed against the bearing 74.
2 along the elongated hole 72a toward the main body part 32 side. In this case, the roller 74 has coil springs 78a and 78b.
The cover member 8 is pulled toward the lid body part 36 by the
4 is held between roller 82 and roller 74 without any gap.

As a result, there is a cover member 84 inside the film loading device 30.
There is no risk of outside light entering through the.

Note that the light shielding means can also be constructed as shown in FIG. That is, a light-shielding block 86 is integrally formed at the upper end of the lid body 36, and a roller 88 is disposed on this light-shielding block 86 via a bearing 90. In this case, bearing 9
One end of the roller 88 rotatably supports the roller 88, and the other end is pressed toward the main body 32 by a coil spring 94 installed in a chamber 92 defined in the light shielding block 86. Therefore, the roller 88 is connected to the coil spring 94.
is biased to protrude toward the main body portion 32 via the bearing 90.

Therefore, the cover member 84 of the film packaging device 8 body 70 loaded into the lid part 36 is held between the roller 88 and the main body part 32 by closing the loading opening 34 with the lid part 36. Further, the cover portion tl'84 is led out from between the light shielding block 86 and the end portion 98 on the main body portion 32 side. Therefore, the inside of the film loading device 30 is kept light-tight by the roller 88 and the light blocking block 86.

FIG. 9 shows another embodiment of the film loading device according to the present invention. This film loading device 100 includes a main body portion 102 and a film packaging body 70 in an image recording device.
It basically consists of a storage section 104 that stores the storage section 1.04, and a lid section 108 that opens and closes the loading port 106 in the storage section 1.04. Here, the film package 70 and the storage section 10
It is mounted on the pedestal 110 at 4 in an inclined state.

On the other hand, one end of the lid body part 108 is rotatably attached to the end of the loading port 106, and the other end has a locking member 1 that engages with the main body 102 when the loading port 106 is closed.
12 are arranged. Further, as in the embodiment shown in FIG. 3, the main body section 102 includes a shutter member [4] and a roller 116 that is rotatably attached to the end of the loading port 106 via an elastic member (not shown). In this case, the shutter member 1
A shutter 118 is attached to the distal end of the shutter 14 .

Therefore, when loading the film package 70 into the film loading device 100, first rotate the lid section 108,
The film package 70 is loaded into the storage section 104 with the loading port 106 open. In this case, the cover part tlf'8
4 has its end 84 a led out from the loading port 106 to the outside of the storage section 104 .

Next, the lid portion 108 is rotated, and its locking member 112 is
By engaging with the main body portion 102 side, the loading port 106 is closed. At this time, the cover member 8 of the film package 70
4 is held between the lid body part 108 and a roller 116 which is urged to protrude from the main body part 102 by an elastic member (not shown). As a result, the interior of the film loading device 100 is maintained in a light-tight state by the lid portion 108 and the roller 116.

Then, grasp the end 84a of the cover member 84 and
When the cover member 84 is pulled out in the ``direction'', the cover member 84 is peeled off from the ``film removal phase opening'' portion of the film package 70. Next, the shutter 11.8 is displaced by pulling out the shutter part +A114 in the direction of the arrow B' force, and the film package 70 opens into the main body 102. And suction cup 1
By driving 20, the film F is fed to a transport mechanism (not shown).

As described above, according to the present invention, in a film loading device loaded with a film package in which a plurality of sheet films are stacked and stored and the film ejection opening is closed with a cover member, the loading opening of the film package or At least one of the lid parts that closes the loading port is provided with a light shielding means that is biased to protrude toward the cover member.

Therefore, the cover member is sandwiched between the light shielding means, and when the cover member is peeled off from the film package, the film is not irradiated with external light, and the film can be loaded in a bright room. Furthermore, since there is no need to load the film package while it is housed in a dedicated magazine, the loading operation can be accomplished easily and reliably, and since the structure is simple, manufacturing costs are low and extremely economical. Benefits can be obtained.

Although the present invention has been described above with reference to preferred embodiments, the present invention is not limited to these embodiments.
Of course, various improvements and changes in design are possible without departing from the gist of the present invention.

[Brief explanation of drawings]

Figures 1a and 1 are schematic cross-sectional explanatory diagrams of magazines for storing film packages according to prior art, and Figures 2a and 2 are magazines for storing film packages according to other prior art. 3 is a schematic cross-sectional view showing an open state of the loading port in the film loading device according to the present invention, and FIG. 4 is a schematic cross-sectional view showing the closed state of the loading port in the film loading device according to the present invention. 5 is a perspective view of a film package applied to the film loading device according to the present invention, FIG. 6 is an enlarged partial sectional view showing the main parts of the film loading device shown in FIGS. 3 and 4, FIG. 7 is a partially omitted partial sectional view showing another embodiment of the light shielding means in the film loading device according to the present invention, and FIG. 8 is a still another embodiment of the light shielding means in the film loading device according to the present invention. FIG. 9 is a schematic cross-sectional view showing another embodiment of the film loading device according to the present invention. 30...Film loading device 34...Loading l'3
6... Lid part 38... Film packaging body 40... Light-shielding container 44... Cover member 55.57... Light-shielding block 58... Roller 59... Coil spring 62... Shutter 66... Suction cup 70... Film packaging body 74... Rollers 78a, 78b... Coil springs 82, 88...
・Roller 100... Film loading device 102... Main body part 1
04... Storage part 108... Lid body part F.
...Film FfG, 7 b4o 70

Claims (4)

[Claims] (1) A film loading device into which a film package is loaded, in which a plurality of sheet films are stored in a stack and the film take-out opening is closed with a cover member, and the device has a loading opening of the film package in the device or At least one of the lid parts that closes the loading port is provided with a light shielding means that is biased to protrude toward the cover member, and the light shielding means protects the cover member guided to the outside through the loading port from light. A film loading device characterized by being configured to tightly sandwich the film. (2) The film loading device according to claim 1, wherein the light shielding means comprises a rotatable roller, and the roller is biased to protrude toward the cover member by an elastic member. (3) A film loading device according to claim 2, wherein the cover member is light-tightly held between an engaging portion formed at an end of the film package and the roller. (4) In the device according to claim 1, the cover member is light-tightly sandwiched between a first roller disposed at the loading port and a second roller disposed at the lid body. A film loading device.