JP2529551B2 - Film loading device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film loading device, and more particularly to a device for loading a film package in which a plurality of sheet films are stored and a film taking-out opening is closed by a cover member. The present invention relates to a film loading device configured to dispose a light shielding unit that is displaced toward the cover member in a loading port of the film package, and to hold the film in a light-tight manner by the light shielding unit.

In general, a radiation image film obtained by photographing a subject such as a human body using X-rays is widely used for medical diagnosis and the like. Conventionally, when a radiographic image is captured using such an X-ray film, the X-ray film is loaded in a radiation image capturing device in a light-shielded state, and the emulsion surface of the film is directly irradiated with the X-ray. An image of the subject is recorded.

By the way, recently, a radiation image recording / reproducing system for obtaining a radiation transmission image of a subject using a stimulable phosphor (stimulable phosphor) has been developed and is being widely spread. Here, the stimulable phosphor means that when it is irradiated with radiation (X-rays, α-rays, β-rays, γ-rays, electron rays, ultraviolet rays, etc.), a part of this radiation energy is accumulated, and the visible light is excited later. It refers to a phosphor that exhibits stimulated emission according to the energy accumulated by irradiating light.

The above-mentioned radiation image recording / reproducing system uses this stimulable phosphor. Once the radiation image information of the human body or the like is recorded on a sheet having a layer composed of the stimulable phosphor, the stimulable phosphor sheet is used as a laser beam. To generate stimulated emission light by scanning with excitation light, and photoelectrically read the obtained stimulated emission light to obtain an image signal, and based on this image signal, a recording material such as a photographic photosensitive material, a CRT, or the like. It is output as a visible image.

Here, when an image is recorded on the recording material, an image recording device, for example, an image output laser printer device is adopted. This device stores an X-ray film, which is an image recording material, via a magazine, etc., and takes out the films one by one by a sheet-fed mechanism such as a suction plate, and then an electric signal obtained from a stimulable phosphor sheet. Based on the above, the film is irradiated with laser light to record a predetermined image. Therefore, the film on which the new image is recorded is conveyed into the automatic developing device, and after the developing process,
It is stored in a prescribed place and is used for medical diagnosis, etc., if necessary.

Incidentally, in the image output laser printer device, when the X-ray film is loaded in the device, as in the above-described conventional radiation image capturing device, the film should not be exposed to external light. Because it will be exposed. Therefore, since the film loading work is generally performed in a dark room, the loading work efficiency is low. Then, in order to improve the workability, it is strongly desired to load a film in a normal light room, and the technical idea for making this possible is, for example, Japanese Utility Model Laid-Open No. Sho 56-7931. No.

That is, in relation to the prior art, FIG. 1a shows a sectional view of a magazine 1 loaded in an X-ray imaging apparatus or the like. The magazine 1 can be opened and closed by a main body 2 and the main body 2. The main body 2 and the lid 3 define a chamber 4 including a lid 3 that is hinged. Clamping rollers 5a and 5b are rotatably supported by the main body 2 and the lid 3, respectively, and the main body 2 is prevented from being exposed to outside light from the side of the clamp rollers 5a and 5b. In addition, the light shielding member 6 is provided on the lid portion 3. Further, an opening 7 for taking out the film is formed in the lid portion 3, and a bending handle 9 is formed at one end of a shutter member 8 provided in the lid portion 3 for opening and closing the opening portion 7. There is.

With the above-described structure, the film package 10 is stored in the magazine 1. A plurality of unexposed films 12 are stored in the film package 10 in a state of being protected by a corrugated cardboard 11, and the film package is
Both end portions 10a and 10b of 10 are exposed from the magazine 1 to the outside.

Therefore, a case where the film package 10 is loaded in a magazine will be described.

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. 1B, the magazine 1 is loaded into the X-ray imaging apparatus 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 the magazine 1
Since the film package 10 is pulled out from the sheet and is sandwiched by the sandwiching rollers 5a and 5b, the unexposed film 12 in the film package 10 remains in the chamber 4. Further, in this case, the chamber 4 in the magazine 1 is opened through the opening 7.
Are opened in the device 13. Then, the unexposed film 12 is sucked by the suction plate 14 and conveyed to a predetermined photographing position.

Further, as another conventional technique, there is an apparatus disclosed in Japanese Utility Model Publication No. 56-5141. That is, FIG. 2A shows a cross-sectional view of a film package 15 supplied to an X-ray imaging apparatus or the like, and the film package 15 includes a light-shielding container 17 which is a housing having an opening 16, In the light-shielding container 17, a plurality of unexposed films are protected while being protected by the corrugated cardboard 18.
19 are stored. A flexible light shielding member 20 is light-tightly attached to the opening 16 to protect the unexposed film 19 from outside light. In this case, one end portion side of the flexible light shielding member 20 is curved vertically upward, and a locking hole portion 20 is formed at the one end edge portion.

The film package 15 thus constructed is shown in FIG.
It is stored in the magazine 21 shown in and is positioned by the storage unit 22. Here, the magazine 21 is provided with a shutter member 23, and after engaging the hole 20a of the flexible light-shielding member 20 with the locking projection 24 planted at one end of the shutter member 23, the magazine 21 is loaded into an X-ray imaging apparatus or the like (not shown). Next, the other end of the shutter member 23 is pulled out from the magazine 21 by fingers or the like. As a result, the flexible light-shielding member 20 is separated from the light-shielding container 17 by the locking projection 24 that is engaged with the hole 20a, and the opening 16 is opened inside the X-ray imaging apparatus or the like. Then, the unexposed film 19 is adsorbed by the vacuum suction device 25 and conveyed to a predetermined photographing position.

However, in the above-mentioned prior art, a dedicated magazine must be used to store the film package. Since this dedicated magazine is repeatedly mounted on the image recording apparatus, it must be manufactured firmly so as to withstand long-term use, and as a result, the dedicated magazine itself has a considerable weight. In addition, storing the film package in the dedicated magazine every time the film is loaded into the apparatus compels the operator to perform extremely troublesome work, and also causes the work efficiency to be significantly reduced.
Therefore, it is necessary to prepare a plurality of such magazines in a state in which the film packages are stored.

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

The present invention has been made in order to overcome the above-mentioned inconvenience, and is a film loading device in which a plurality of sheet films are accommodated and a package in which the opening for taking out the films is closed by a flexible cover member is loaded. The cover member led out through the loading port of the film package is sandwiched by light-shielding means composed of rollers, and the film is removed when the cover member is peeled from the film package. An object of the present invention is to provide a film loading device that can be kept light-tight and that enables loading of a film in a bright room without using a conventionally used dedicated magazine.

In order to achieve the above object, the present invention is a film loading device in which a plurality of sheet films are stacked and housed, and a film packaging body in which the opening for taking out the film is closed by a cover member is loaded. At least one of a loading port of the film package or a lid portion that closes the loading port is provided with a light-shielding unit that is biased to project toward the cover member, and the light-shielding unit externally supplies the light through the loading port. It is characterized in that the cover member led out to the above is sandwiched in a light-tight manner.

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

3 and 4, reference numeral 30 denotes a film loading device according to the present invention, and the film loading device 30
Constitutes, for example, an input unit of the sheet film in the image recording apparatus. In this case, the film loading device 30 is basically composed of a main body 32 on the image recording apparatus side and a lid body 36 pivotally attached to the main body 32 to open and close the loading port 34 of the film package 38.

Here, the film package 38, as shown in FIG.
The light-shielding container 40 stores a plurality of sheet-like films F in a stacked state, and a flexible cover member 44 that closes the film extraction opening 42 of the light-shielding container 40. In this case, the cover member 44 adhered to the film extraction opening 42 has a length slightly more than twice that of the light-shielding container 40, and is bent at one end to bend the end 44a of the cover member 44.
Is configured to extend to the other end side.

Therefore, the lower end portion of the lid body portion 36 is pivotally attached to the main body portion 32 via the hinge member 52 in a rotatable state. On the lower end side and the upper end side of the lid body part 36, receiving stands 54a and 54b, which are mounting stands for the film package 38, are attached. In this case, the cradle 54
The a and 54b are arranged so that the opening 42 for taking out the film of the film package 38 is oriented obliquely upward when the loading port 34 is closed. Here, a limit switch 51 is provided on the main body portion 32 side, which is operated by the end of the packaging body 38 when the loading port 34 is closed and detects that the packaging body 38 has been loaded. It should be noted that the first light blocking block 55 is provided on the upper end of the lid 36.
Also, a second light blocking block 57, which is close to the first light blocking block 55, is attached to the main body 32 side when the loading port 34 is closed.

On the other hand, a bearing 72 is attached in the vicinity of the second light shielding block 57 on the main body 32 side, and a long hole 72a bored in the bearing 72 is attached.
The rotary shaft 76 of the roller 74 is fitted into the roller. The rotating shaft 76 is pulled toward the lid portion 36 by two coil springs 78a and 78b whose ends are locked to the main body portion 32 side of the loading port 34 which is closed by the lid portion 36. . As a result, roller 74
Is urged to project toward the lid portion 36 side. On the other hand, the first of the lid portion 36
A roller 82 is axially mounted near the light blocking block 57 via a support plate 80.

A shutter member 60 is disposed on the main body portion 32 side, and a flexible thin plate-shaped shutter 62 is attached to the tip of the shutter member 60. The shutter 62 opens and closes a film transport port 64 defined on the main body 32 side, and the film transport port 64 constitutes a suction mechanism for transporting the film F to the next-stage image recording unit. The suction board 66 enters.

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

First, the lid portion 36 is rotated around the hinge member 52 to open the loading port 34 as shown in FIG. Next, the film package 38 is loaded into the lid 36. In this case, a light-shielding container
40 is brought into contact with the receiving bases 54a and 54b. As a result, the film package 38 is loaded in the lid portion 36 in an inclined state. Here, the cover member 44 for closing the film extraction opening 42 of the light-shielding container 40 has the end portion 44a of the cover member 44 with the roller 82 interposed therebetween.
To the outside of.

In this way, the lid portion 36 in which the film packaging body 38 is loaded
Is rotated about the hinge member 52, and the loading port 34 is closed. In this case, the roller 82 is pressed against the roller 74 on the side of the main body 32 via the cover member 44, and the roller 74 bears the bearing 72.
It is moved to the main body 32 side along the long hole 72a. Laura 74
Is pulled toward the lid portion 36 by coil springs 78a and 78b, and the cover member 44 is sandwiched between the roller 82 and the roller 74 without a gap. Further, the cover member 44 is sandwiched between the first and second light blocking blocks 55 and 57, and its end portion is sandwiched.
44a is led out of the film loading device 30. As a result, there is no risk of outside light entering the film loading device 30 through the cover member 44.

On the other hand, the end portion of the film package 38 loaded in the film loading device 30 has a limit switch 51 arranged on the main body 32 side.
Activate As a result, it is detected that the film package 38 is loaded in the film loading device 30, and there is no possibility that the loading port 34 is opened carelessly and the film F is exposed.

Next, by grasping the end portion 44a of the cover member 44 and pulling it out in the direction of the arrow A, the cover member 44 is rotated by the roller 74,
It is peeled off from the film extraction opening 42 of the light-shielding container 40 while being sandwiched by 82. In this case, the cover member 44 is a roller.
It is smoothly drawn out from the film loading device 30 by the rotation of 74 and 82. As a result, the opening for taking out the film
42 is opened into the film loading device 30 without being exposed to outside light.

Further, the cover member 44 is covered with the light shielding container 40 over a predetermined length.
When the shutter member 60 is pulled out in the direction of the arrow B after being peeled from the film, the shutter 62 is displaced, and as a result, the film take-out opening 42 of the film package 38 is placed in the film loading device 30.
The film will be opened toward the film transfer port 64.
Next, the suction plate 66 is driven to sequentially feed the film F stored in the light-shielding container 40 to a transport mechanism (not shown), and then an image is recorded on the film F in the image recording section.

The light shielding means can be configured as shown in FIG. That is, the light blocking block 86 is integrally formed on the upper end of the lid portion 36, and the roller 88 is attached to the light blocking block 86.
Are arranged via a bearing 90. In this case, one end of the bearing 90 rotatably supports the roller 88, and the other end of the bearing 90 is a coil spring installed in a chamber 92 defined by the light blocking block 86.
It is pressed toward the main body 32 by 94. Therefore, the roller 88 is biased by the coil spring 94 via the bearing 90 toward the main body portion 32 side.

Therefore, the cover member 44 of the film package 38 loaded on the lid body portion 36 is sandwiched between the roller 88 and the main body portion 32 by closing the loading port 34 by the lid body portion 36. Further, the cover member 44 is led out from between the light blocking block 86 and the end portion 98 on the side of the main body portion 32. Therefore, the inside of the film loading device 30 is kept light-tight by the roller 88 and the light blocking block 86.

FIG. 7 shows another embodiment of the film loading device according to the present invention. The film loading device 100 basically comprises a main body 102 of the image recording apparatus, a storage unit 104 for storing the film package 38, and a lid unit 108 for opening and closing a loading port 106 in the storage unit 104. Here, the film package 38 is attached to the receiving table 110 in the storage section 104 in an inclined state.

On the other hand, one end of the lid 108 is rotatably attached to the end of the loading port 106, and the other end of the lid 108 is locked to the main body 102 side when the loading port 106 is closed. Is provided. The main body 102 has a shutter member 114 and a roller 116 axially attached to the end of the loading port 106 via an elastic member (not shown), as in the case of the embodiment shown in FIG. In this case, the shutter 118 is attached to the tip of the shutter member 114.

Therefore, the film loading device 100 is used in the film package 3
When loading 8, the lid 108 is first rotated to
The film package 38 is loaded into the storage unit 104 with the open state. In this case, the end 44a of the cover member 44 is led out from the loading port 106 to the outside of the storage unit 104.

Next, the lid portion 108 is rotated, and the lock member 112 is engaged with the main body portion 102 side to close the loading port 106.
At this time, the cover member 44 of the film package 38 is covered with the lid portion 108.
And the roller 116 that is biased by the elastic member (not shown) from the main body 102. As a result, the inside of the film loading device 100 is kept in a light-tight state by the lid 108 and the roller 116.

Then, the end portion 44a of the cover member 44 is grasped, and the arrow A '
When it is pulled out in the direction, the cover member 44 becomes a film package.
It is peeled off from the opening 38 for taking out the film. Next, the shutter 118 is displaced by pulling out the shutter member 114 in the direction of the arrow B ', and the film package 38 is moved to the main body 102.
Open inside. Then, by driving the suction plate 120, the film F is fed to a transport mechanism (not shown).

As described above, according to the present invention, in the film loading device in which a plurality of sheet films are stacked and housed and the film packaging body in which the film take-out opening is closed by the cover member is loaded, the loading port of the film packaging body or At least one of the lid portions that closes the loading port is provided with a light shielding means that is biased to project toward the cover member. Therefore, the cover member is sandwiched by the light shielding means, and when the cover member is peeled from the film package,
The film can be loaded in a bright room without being exposed to external light. Further, since it is not necessary to load the film package in the state of being housed in a dedicated magazine, the loading operation can be easily and surely achieved. Furthermore, since the film package itself does not require a special structure, the manufacturing cost is low and the advantage is extremely economical.

Although the present invention has been described above with reference to the preferred embodiments, the present invention is not limited to these embodiments, and various improvements and design changes can be made without departing from the scope of the present invention. Of course.

[Brief description of drawings]

1a and 1b are schematic cross-sectional explanatory views of a magazine for storing a film package according to the related art, and FIGS. 2a and 2b are magazines for storing a film package according to another related art. FIG. 3 is a schematic sectional view showing an opened state of a loading port in the film loading apparatus according to the present invention, and FIG. 4 is a schematic sectional view showing a closed state of the loading port in the film loading apparatus according to the present invention. FIG. 5 is a perspective view of a film package applied to the film loading device according to the present invention, and FIG. 6 is a partial cross-sectional view showing another embodiment of the light shielding means in the film loading device according to the present invention. FIG. 7 is a schematic sectional explanatory view showing another embodiment of the film loading apparatus according to the present invention. 30 …… Film loading device, 34 …… Loading port 36 …… Lid body, 38 …… Film packaging 40 …… Shade container, 44 …… Cover member 55,57 …… Shading block, 62 …… Shutter 66… … Suction plate, 74, 82, 88 …… Roller 78a, 78b …… Coil spring, 100 …… Film loading device 102 …… Main body part, 104 …… Storing part 108 …… Lid body part, F …… Film

Claims (3)

(57) [Claims] 1. A film loading device for loading a film package in which a plurality of sheet films are stacked and housed and a film take-out opening is closed by a cover member, and a loading port into which the film package is inserted. A cover unit that closes the loading port; and a light-shielding unit that is disposed in at least one of the loading port and the lid unit and is biased to project toward the cover member. A film loading device, wherein the cover member led out to the outside via the light shielding means is sandwiched in a light-tight manner. 2. The film loading apparatus according to claim 1, wherein the light shielding means is a rotatable roller, and the roller is urged to project toward the cover member by an elastic member. 3. The device according to claim 1, wherein the cover member is light-tightly sandwiched by a first roller arranged at the loading port and a second roller arranged at the lid portion. A film loading device that is formed.