JP3442529B2 - Magazine for rolled photosensitive material - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magazine for roll-shaped photosensitive materials, and more particularly to a simple paper magazine. 2. Description of the Related Art Conventionally, a roll-shaped photosensitive material magazine used for printing, printing, copying and the like has been used for loading an image output machine in a bright room. The magazine is wound around a core supported by a shaft on the inner surface of the side plate, inside a cylindrical body portion formed by bending a body plate made of, for example, cardboard or cardboard, and a side plate closing both ends of the body portion. The roll-shaped photosensitive material is stored in a light-shielded state, and is provided at a corner of one surface of the body portion with a slit for drawing out the photosensitive material provided with a light-shielding means extending along the axial direction of the core (hereinafter referred to as a draw-out opening). And a roll-shaped photosensitive material magazine for extracting the photosensitive material. An outlet extending in the entire axial direction of the torso provided at a corner of one surface of the torso comprises an upper front end and a light shielding means such as a cushioning cloth provided at the front front end. Have been. [0004] Such a roll-shaped magazine for photosensitive material is advantageous in that the work of refilling the photosensitive material in a dark room is not required, but various magazines caused by using easily deformable materials such as cardboard or cardboard are used. There's a problem. Among them, a particularly serious problem is that when the magazine is assembled, a gap is likely to be formed in the center of the drawer outlet due to the rigidity of the material constituting the body, and external factors (shock, greenhouse, etc.) that are likely to occur during transportation and use. And the like, the outlet may expand. [0005] When such deformation occurs, the drawer is used while the gap at the center of the drawer is large. Since the magazine in such a state has an insufficient light-shielding property, the photosensitive material contained therein may be exposed before use and become unusable. In particular, the deformation of the outlet as described above becomes remarkable when a wide photosensitive material is used. SUMMARY OF THE INVENTION An object of the present invention is to provide a method for assembling a roll-shaped photosensitive material magazine which can stabilize the shape of the front end portion of the upper surface and has a higher light-shielding property. It is in. [0007] A draw-out opening for the roll-shaped photosensitive material is formed at a front end of an upper surface and a front end of a front surface of the tubular body for accommodating the roll-shaped photosensitive material. A method for assembling a magazine for a roll-shaped photosensitive material fixed by a side plate, wherein at least the front end of the upper surface is fixed to the side plate while the front end of the upper surface forming the drawer is fixed so as not to be curved. This was achieved by a method for assembling a magazine. The present invention will be described below in detail with reference to examples. FIG. 3 is a perspective view of the roll-shaped photosensitive material magazine, in which one side plate has been removed to make it easier to understand the internal structure. The magazine 1 shown in FIG. 3 comprises a cylindrical body 4 formed by bending a body plate having folded portions at both ends, and side plates 6c and 6d respectively covering both sides of the cylindrical body 4. One upper front end 2 is attached to the end of the upper surface 5 of the body plate constituting the cylindrical body 4, and the other front front end 3.
Are provided at the ends of the front wall portion 8 of the sheet constituting the cylindrical body 4 in a state of being bent inside the cylindrical body 4, respectively. Have been. On both sides of the cylindrical body 4, side plates 6c,
6d is fitted. At the center of the side plate, a bearing 7 for rotatably supporting the core 11 of the roll-shaped photosensitive material 10 is provided. With this configuration, the photosensitive material can be easily rotated in the cylindrical body, and the photosensitive material can be appropriately pulled out through the outlet. FIG. 4 shows the position at which the upper front end 2 is fixed to the side plate.
Shown in In FIG. 4, the upper front end 2 is fixed to the adhesive groove 12. FIG. 4 is a front view of the side plate 6d of FIG. 3 viewed from the direction e. As a material for fixing the front end 2 of the upper surface and the side plate, for example, a thermosetting adhesive (eg, amino resin, polyester resin, polyurethane resin, etc.), a thermoplastic adhesive (eg, polyvinyl acetate resin, vinyl acetate) , Vinyl chloride copolymer, acrylic resin, polyamide resin, etc.), hot melt adhesives (generally adhesives mainly composed of thermoplastic adhesives, eg ethylene-vinyl acetate copolymer (EV
A) Curable adhesives such as polyethylene, atactic polypropylene (APP), ethylene / ethyl acrylate copolymer (EEA), polyamide, polyester, etc.). The method of assembling the magazine for roll-shaped photosensitive material according to the present invention is characterized in that at least the upper front end is fixed to the side plate while the upper front end 2 is fixed so as not to be curved. As a method of fixing the front end of the upper surface so as not to bend at the time of assembly, it is essential that the front end of the upper surface be flat using a U-shaped jig a for fixing the upper surface as shown in FIG. Condition. As for the fixing position, the center of the magazine is fixed as shown in FIG. As a fixing range, the fixing jig width d in FIG. 2 is set to 10 to 15 cm, and may be more than the range not exceeding the width of the magazine. Example 1 Next, the light-shielding accuracy of the magazine outlet when the magazine was actually assembled was investigated using the magazine assembling method of the present invention using the fixing jig shown in FIG. 1 and the conventional assembling method. did. The width of the photosensitive material stored in the magazine is 30.5 cm. Table 1 shows the results. [Table 1] Evaluation method: Leave the drawer facing upward and leave it for 60 minutes under a white light with an illuminance of 3000 lx <Evaluation grade> ○ indicates a light covering distance of 10 mm or less from the drawer △ indicates a light covering distance from the drawer of 20 to 30 mm or less Table 1 shows that there is a clear difference in the light shielding accuracy between the magazine of the present invention and the conventional magazine.
Also, in the magazine of the present invention, the presence or absence of shrink packaging
It was found that there was an effect on the shading accuracy. When the magazine is used, since the magazine is used without the shrink wrap, the light shielding accuracy must be equivalent to the state with the shrink wrap. Example 2 Next, using the assembling method of the present invention, the position at which the front end of the upper surface was fixed to the side plate was changed, and the light-shielding accuracy of the drawer with and without shrink wrapping was investigated. Table 2 shows the results. <Fixed position> In FIG. 4, an adhesive was applied to the twelve groove portions to be fixed to the front end of the upper surface, but the fixed position was changed from the position f to the position g as follows. Magazine-1 is 2 to 10 mm from the position f to the position g.
Magazine 2 fixed from 10 to 20 m from position f to position g
The magazine-3 fixed at a position within m is 30 to 40 m from the position f to the position g.
[Table 2] Evaluation method: Leave the drawer facing upward and leave it for 60 minutes under a white light with an illuminance of 3000 lx <Evaluation grade> ○ indicates a light covering distance of 10 mm or less from the drawer △ indicates a light covering distance from the drawer of 20 to 30 mm or less Table 2 shows that the light-shielding accuracy of the drawer differs depending on the position where the front end of the upper surface and the side plate are fixed to each other.
By this test, it was possible to obtain the same light-shielding accuracy as in the shrink wrapping even without the shrink wrapping. Based on the above results, the front end of the upper surface is fixed in a flat state, and the position at which the front end of the upper surface is fixed to the side plate in this state is 2 to 1 from the position f to the position g in FIG.
It is desirable that the distance be small within 0 mm. Further, if there are many places to be fixed, the draw-out opening is less deformed and a high light-shielding property can be obtained, but it goes without saying that the magazine is difficult to disassemble when discarded. According to the assembling method of the present invention, it is possible to prevent the drawer from being deformed and to obtain a high light-shielding property, so that the photosensitive material stored in the magazine is exposed before use and cannot be used. Less trouble.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a fixing position of a magazine upper surface 5 by a fixing jig a. FIG. 2 is a fixing jig for fixing a magazine. FIG. 3 is a perspective view showing one embodiment of a roll-shaped photosensitive material magazine. FIG. 4 is a front view of the side plate 6d of FIG. 1 viewed from a direction e. [Description of Signs] a Fixing jig b Fixing jig width 1 Magazine 2 Top front end 3 Front front end 4 Cylindrical trunk 5 Top 6c, 6d Side plate 7 Bearing 8 Front wall 9 Pull-out opening 10 Photosensitive material 11 Core 12 Adhesion groove

Claims (1)

Claims: 1. A slit for pulling out a roll-shaped photosensitive material is formed at a front end of an upper surface and a front end of a front surface of a tubular main body for storing a roll-shaped photosensitive material. In the method for assembling a magazine for a roll-shaped photosensitive material in which the side surfaces are fixed by side plates , at least the front end portion of the upper surface is fixed with a jig so that the front end portion of the upper surface forming the drawing slit is not curved. A method for assembling a roll-shaped photosensitive material magazine, wherein the magazine is fixed to a side plate.