JPS62265664A - Packaging for sheet film - Google Patents

Abstract

PURPOSE:To permit the easy stripping of a light shielding cover and to surely open an aperture by providing a joint point to be concentrated with stripping force in the beginning of stripping into the light shielding cover and middle cover at the time of stripping the light shielding cover. CONSTITUTION:Fixing parts 20 at the peripheries of the aperture 14 of a packaging 10 to house plural films F and fixing parts 24 of the middle cover 16 are mated with and joined to each other and the fixing parts 28, 30 of the light shielding member 18 are mated with and joined to the fixing part 20 of the packaging and the fixing part 26 of the middle cover, by which the films F are phototightly held. The force to pull a lapped part 31 of the light shielding member concentrates to vertexes 30a, 26a of the adhesive part when said part is pulled and therefore, said part is begun to be stripped without requiring so much force. The films F are, therefore, thoroughly shielded of light and the light shielding member is easily stripped.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sheet film packaging body, and more particularly to a sheet film packaging body, and more particularly, a light shielding member that covers an opening for taking out the film of a tray base from a tray base for storing a sheet film can be easily and reliably removed. The present invention relates to a sheet film package configured to be peelable.

2. Description of the Related Art X-ray imaging apparatuses have been widely used in the past for irradiating a subject such as a human body with radiation and recording a radiation image on an X-ray film, which is useful for medical diagnosis and the like. in this case,
An X-ray film is loaded into the X-ray imaging device in a light-shielded state, and the emulsion surface of the film is directly irradiated with X-rays to record an image of the subject.

By the way, recently, a radiographic image recording and reproducing system has been developed that uses a storage phosphor (stimulable phosphor) to obtain a radiographic image of a subject. It is becoming popular.

Here, a storage phosphor is a material that, when irradiated with radiation (X-rays, α-rays, β-rays, γ-rays, electron beams, ultraviolet rays, etc.), stores some of this radiation energy and later emits visible light, etc. A phosphor that generates stimulated luminescence according to the accumulated energy when irradiated with excitation light.

The radiation image recording and reproducing system described above utilizes this stimulable phosphor, and the radiation image information of the human body, etc. is stored and cumulatively recorded on a sheet having a layer made of the stimulable phosphor. A photosensitive sheet is scanned with excitation light such as a laser beam to generate stimulated luminescent light, and the resulting stimulated luminescent light is read photoelectrically to obtain an image signal, and 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 photosensitive sheet film, which is a recording material, through a magazine, etc., and then takes out the film one by one using a sheet-fed mechanism that includes a suction cup, etc., and then extracts the image obtained from the stimulable phosphor sheet. The image accumulated and recorded on the sheet is exposed and recorded by irradiating the film with a laser beam modulated based on a signal. This film is then conveyed into an automatic developing device and, after undergoing a developing process, is stored at a predetermined location or directly used for diagnosis.

Incidentally, in the image output laser printer device, similarly to the conventional X-ray imaging device described above, when loading the film into the device, the film must not be irradiated with external light. This is because the film will be exposed. Therefore,
Generally, when loading film into an image recording apparatus or the like, there is an inconvenience that the process must be carried out in a dark room.

Therefore, in order to improve operability, it is strongly desired to load the film in a bright room, and various bright room loading methods have been proposed to make this possible. An example of this bright room loading method is disclosed in Japanese Utility Model Application Publication No. 56-5141. This is shown in FIG.

That is, FIG. 1a shows a cross-sectional view of a film package 1 to be supplied to an image recording apparatus, and this film package 1 includes a housing-like light-shielding container 2 having an opening 2a. A plurality of unexposed films F are stored in the light-shielding container 2 while being protected by a cover 3. Further, a flexible light-shielding member 4 is attached to the light-shielding container 2 so as to close the opening 2a in a light-tight manner, thereby protecting the unexposed film F from external light. In this case, one end portion of the flexible light shielding member 4 is curved vertically upward in the I direction, and a locking hole 4a is bored in this one end portion.

The film package l constructed in this manner is stored in a magazine 5 shown in FIG. 1, and positioned by a storage section 6. Here, the magazine 5 is provided with a shutter member 7, and the hole 4a of the flexible light shielding member 4 is engaged with a locking protrusion 8 planted at one end of the shutter member 7. After that, the magazine 5 is loaded into an image recording device (not shown).
Next, the other end of the shutter member 7 is pulled out from the magazine 5 by manual operation. As a result, the flexible light-shielding member 4 is peeled off from the light-shielding container 2 by the displacement of the locking protrusion 8 that engages with the hole 4a, and the opening 2a is opened in the image recording apparatus. Next, the unexposed film F is sucked by the vacuum suction device 9 through the opening 2a and transported to a predetermined photographing position.

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

This dedicated magazine must be manufactured strongly so that it can withstand repeated attachment and detachment, and therefore the dedicated magazine itself has a considerable weight. Therefore, a drawback arises in that it is troublesome for the operator to attach and detach the dedicated magazine. Moreover, since the dedicated magazine is provided with a shutter mechanism and the like, it becomes quite expensive. In particular, when using various films of different sizes, it is necessary to prepare a dedicated magazine for each size of film, which significantly increases manufacturing costs and is inconvenient in that it is not economically acceptable in practice. is pointed out.

Furthermore, in order to load the film into the apparatus, it is necessary to engage the end of the light shielding member to the shutter member, and after loading the magazine into the apparatus, pull out the shutter member.

As a result, the disadvantage is that the loading operation of such a film is complicated and takes a considerable amount of time.

In view of the above-mentioned inconvenience, the present applicant proposed a sheet film packaging body that made it possible to load film into a device in a bright room without using a dedicated magazine (Patent Application No. 6
No. 1-50038). That is, according to the present invention, a flexible cover member is removably fixed to a tray stand that stores a plurality of films in a stacked manner, and the cover member is bent at one end of the tray stand to secure the tray stand. The length of the cover member is selected so that the end portion of the cover member is exposed to the outside of the device when the base is loaded into the device.

In such a configuration, it is possible to define an opening for taking out the film in the tray stand by loading the tray stand into the device in a bright room and pulling and peeling off the cover member from the tray stand in a light-blocked state. becomes. As a result, it has become possible to provide a lightweight and inexpensive sheet film packaging body that has a simple structure and does not require the dedicated magazine that was conventionally used.

The present invention has been made regarding this type of sheet film package, and includes a tray stand for storing a sheet film, a light shielding member covering an opening for taking out the film of the tray stand, and the tray stand and the light shielding member. and an inner cover that is interposed between the inner cover and the light shielding member to close the peeling start end side of the opening, and the package is configured such that peeling force is concentrated at the joint portion between the inner cover and the light shielding member at the beginning of peeling. It is an object of the present invention to provide a sheet film packaging body that can facilitate the peeling operation of the light shielding member and reliably open the opening.

In order to achieve the above object, the present invention provides a tray stand that stores a plurality of stacked sheet films, and a peeler that closes the film ejection opening of the tray stand and holds the sheet film in a light-tight manner. a flexible first cover member, and a second cover member that is located between the tray stand and the first cover member and is fixed to the peeling start tip side of the first cover member to partially close the opening. the second cover member and the first cover member are joined to form a joint point that concentrates the JIB force at least at the beginning of peeling when the first cover member is peeled off. It is characterized by

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

In FIG. 2, reference numeral 10 indicates a sheet film package according to the present invention. In this case, the sheet film package 10 includes a tray stand 12 for storing a plurality of sheet-like films F, and this tray stand. an inner cover 16 that covers a part of the opening 14 of No. 12, and a peelable flexible light-shielding cover that is integrally fixed to the inner cover 16 and the tray stand 12 and holds the film F in a light-tight manner. It basically consists of the member 18.

The tray stand 12 is a rectangular housing having an opening 14, and the opening 14 has, at its periphery, a fixed portion for welding the inner cover 16 and the cover member 18, for example, as shown by diagonal lines. 20 is formed. Further, a grip portion 22 for gripping the package 10 is formed at one end of the tray stand 12.

On the other hand, the inner cover 16 is welded to one end of the tray stand 12, that is, to the peeling tip of the cover member 18. A U-shaped fixing portion 24 is formed along the outer edge of the lower surface of the inner cover 16, as shown by the broken line in FIG.

A fixed portion 26 for welding the cover member 18 is provided on the upper surface of the inner cover 16. In this case, the fixed portion 26 has a predetermined width and has a width extending in the peeling direction from the peeling tip side toward both sides. It is sloped at an acute angle toward the Note that the top part 26a of the fixed part 26 is the fixed part 2
It is provided inward from 4.

Furthermore, the cover member 18 is constituted by a flexible light-shielding member formed to be slightly larger than twice the length of the tray stand 12 in the peeling direction. The lower surface of the cover member 18 has a U-shaped first fixed part 28 that is releasably welded to the fixed part 20 of the tray stand 12, and a bent-shaped first fixed part 28 that is releasably welded to the fixed part 26 of the inner cover 16. Two fixed portions 30 are formed.

The width of the cover member 18 becomes narrower toward the end along the second fixed portion 30, and a grip portion 31 having a predetermined width is formed at the end of the cover member 18.

The sheet film packaging body of this embodiment is basically constructed as described above, and its functions and effects will be explained next.

Therefore, first, the manufacturing process of the package 10 will be explained.

That is, the inner cover 16 and the cover member 18 are positioned so that their fixed portions 26 and 30 are aligned, and the fixed portions 26 and 30 are welded together. Next, the fixed portion 2 of the tray stand 12 in which a plurality of sheet films F are laminated and stored is attached.
0, the U-shaped fixed portion 24 of the inner cover 16 and the cover member 1
8 and the U-shaped fixing portion 28. Then, the cover member 18 is folded back at the tip end side of the inner cover 16, and the end thereof is further folded back in a direction away from the gripping part 22 of the tray stand 12, so that the gripping part 31 of the cover member 18 is placed inside the fixed part 20. Store it in. Therefore, the middle cover 16
, the fixed portion 24.28 of the cover member 18 and the tray base 12
If the fixing portion 20 of the sheet film F is integrally welded, the sheet film F stored in the tray stand 12 will be completely shielded from light via the inner cover 16 and the cover member 18.

In this case, a narrow gripping portion 31 is formed on the cover member 18 and the gripping portion 31 is housed inside the fixed portion 20, and a top portion 26a corresponding to the tip of the joint portion between the cover member 18 and the inner cover 16 is formed. , 30a are provided inside the fixed portion 20 of the tray stand 12, so that unnecessary portions of the cover member 18 are not welded to the tray stand 12 during manufacturing of the package IO.

The operation of peeling off the cover member 18 in the package IO manufactured in this way will be described in detail below.

For example, when the package 10 is loaded into an image recording device (not shown) and the inside of the device is shielded from light, grip the gripping portion 31 of the cover member 18 and move it along the arrow A. pull in the direction.

In this case, the tensile force for pulling out the cover member 18 is applied to the welded region between the cover member 18 and the inner cover 16 and the welded region between the inner cover 16 and the tray stand 12. Here, the welded portions between the tray stand 12 and the inner cover 16, that is, the fixed portions 20 and 24 are in the direction of the tensile force of the cover member 18 (
It extends in the direction perpendicular to the direction of arrow A),
On the other hand, the welded portions of the cover member 18 and the inner cover 16, that is, the fixed portions 30 and 26, are inclined with respect to the direction perpendicular to the direction in which the cover member 18 is pulled. Therefore, the tensile force applied to the cover member 18 is
It is concentrated at one point on the top end portions 30a and 26a of the inner cover 16 and the inner cover 16. As a result, the tensile force that peels off the cover member 18 is applied to the top tips 26a, 30a of the fixed portions 26 and 30.
Since the load is sufficiently concentrated on the cover member 18, the cover member 18 can be peeled off without requiring a particularly large tensile force.

Next, when the cover member 18 is further pulled after starting the peeling process from the fixed portion 26, the peeling operation can be more easily accomplished because the fixed portion 26 is inclined at an acute angle. That is, the cover member 18 is easily peeled off from the fixed portion 26 and the fixed portion 20 of the tray 7 12.

After the film ejection opening 14 of the tray stand 12 is opened in a device (not shown) in this manner, the single-fed mechanism 32 is driven as shown in FIG.

Therefore, the film F stored in the package 10 is sucked by the suction cup of the single-fed mechanism 32 facing the opening 14, and is conveyed to a predetermined recording section via a conveyance mechanism including rollers 34a and 34b. Ru.

By the way, in the sheet film package IO of this embodiment, the fixed portions 30 and 26 between the cover member 18 and the inner cover 16 are formed so as to be inclined toward the peeling direction as they go from the tip top portions 30a, 26a toward both sides. However,
The shape of the fixing portion 30.26 can be selected in various ways. Another embodiment is shown in FIG.

In this case, the fixed portion 36 formed on the inner cover 16 is provided with a top end portion 36a on one side of the inner cover 16, and the cover member 18 is moved away from the top portion 36a (
It is inclined with respect to the direction perpendicular to the direction of arrow A). Meanwhile, a fixed portion 38 corresponding to the fixed portion 36 is formed on the cover member 18, and a top portion 38a thereof is configured to match the top portion 36a.

In such a configuration, when the cover member 18 is pulled in the direction of the arrow A, this tensile force is concentrated at one point on each of the top portions 36a and 38a, similar to the above-mentioned first embodiment aL, and a relatively small tensile force is generated. This cover member 18 can be easily peeled off from the inner cover 16 even by force.

As described above, according to the present invention, the inner cover is located between the tray stand for storing the sheet film and the light shielding member covering the film ejection opening of the tray stand on the peeling start side of the light shielding member. is interposed therebetween, and a joint portion between the light shielding member and the inner cover is configured to be inclined with respect to a direction perpendicular to a peeling direction of the light shielding member. Therefore, when removing the light shielding member from the tray stand, the tensile force is concentrated on a part of the bonded portion, and the light shielding member can be peeled off very easily with less tensile force. Moreover, since the inner cover is provided, it is possible to suitably tilt the joint portion of the light shielding member without being affected by the shape of the tray stand, etc., and the light shielding member can be easily attached even for various different packages. The effect of being able to reliably open the opening for taking out the film by separating the JJI can be obtained.

Although the present invention has been described above by citing preferred embodiments, the present invention is not limited to these embodiments (
For example, the fixed portion between the light-shielding cover member and the inner cover may have any shape as long as it is inclined with respect to the direction perpendicular to the direction in which the cover member is peeled off, without departing from the gist of the present invention. Of course, various improvements and changes in design are possible.

[Brief explanation of drawings]

1A and 1B are partially omitted vertical cross-sectional views of a sheet film packaging body according to the prior art; FIG. 2 is an exploded perspective view showing the configuration of a sheet film packaging body according to the present invention; and FIG. 3 is a main body. FIG. 4 is a perspective view when peeling the light-shielding cover member from the sheet film package according to the present invention; FIG. 4 is a schematic cross-sectional view when sheet film is sheeted from the sheet film package according to the present invention; The figure is a partially omitted perspective view showing another embodiment of the sheet film package according to the present invention.

Claims (3)

[Claims] (1) A tray stand that stores a plurality of stacked sheet films; and a peelable flexible first tray that closes the film ejection opening of the tray stand and holds the sheet film in a light-tight manner. The second cover member is comprised of a cover member, and a second cover member that is located between the tray stand and the first cover member and is fixed to the peeling start tip side of the first cover member to close a part of the opening; 1 When removing the cover member,
A package for a sheet film, characterized in that the second cover member and the first cover member are joined to form a joining point that concentrates the peeling force at least at the beginning of peeling. (2) In the package according to claim 1, the joint portion between the first cover member and the second cover member is connected to the second cover member.
A sheet film packaging body formed in an inclined state with respect to a direction perpendicular to a peeling direction of a cover member. (3) In the package according to claim 1 or 2, the joint portion between the first cover member and the second cover member is provided inside the joint portion between the first cover member and the tray stand. At the same time, the non-joining portions of the first cover member are cut out from both sides to form gripping portions, and the gripping portions are bent and attached to the inside of the joining portions of the first cover member and the second cover member and the tray stand. A sheet film packaging body configured to be able to be stored in.