JPS63124049A - Magazine for photosensitive material - Google Patents

Abstract

PURPOSE:To save waste of cutting and discarding a fold part, without giving a fold to a photosensitive material by forming the edge part on at least one of the lips of a slot of the titled magazine which is drawn out the photosensitive material wound in a roll type. CONSTITUTION:The magazine is constituted of a body part 1 having a squared tube shape, and end caps provided at both ends of said tube. The photosensitive material 3 wound in the roll type is supported pivotly on the inner surface of the end cap. The slot 2 is formed on one surface of the body part 1 in an axial direction of said body. the shielding plush cloth 8 is provided on the upper lip and the lower lip respectively. The edge part 9 of the lower lip 7 is formed the curved surface having radius R of curvature. And, the photosensitive mate rial 3 is drawn out to a prescribed length along the edge part 9 of the curved surface through the slot 2, and is fixed on the surface of the body 1 by sticking it with a tape 10. Accordingly, as the lip of the slot is formed to the curved surface, and the photosensitive material is fixed along the curved surface, the generation of the fold and deformation of the photosensitive material is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to magazines for photosensitive materials, particularly for printing,
This invention relates to magazines for photosensitive materials used for printing, copying, etc.

[Conventional technology]

Conventionally, a relatively wide photosensitive material magazine used for printing, printing, copying, etc. has a rectangular cylindrical body part 1 and both ends of the body part l, as shown in FIGS. 3 and 2. A roll of photosensitive material 3 is housed in a hollow interior formed by two sealing caps 4 in a light-shielded state, and a volume 7:! is placed in a corner of one side of the body portion 1. This is a magazine for photosensitive materials, in which the photosensitive materials 3 are pulled out from a slot 2 provided with a light shielding means 8 extending along the axial direction of the photosensitive materials. (For example, Tokuko Sho 59-367
(See Publication No. 36) For example, cardboard or plastic is used as the material for the body portion l.

The two end caps 4 that seal both ends of the body part 1 have structural features such as a groove that engages with the edge of the body part 1 to keep out light, and a rotation bearing for the core 5 of the photosensitive material 3 housed in the magazine. It has relatively complex irregularities and is required to have the necessary rigidity and accurate dimensions, so it is usually molded from plastic.

Moreover, the body part 1 provided at the corner of one side of the body part 1
As shown in the cross-sectional view of FIG. 2, the slots 2 extending over the entire axial dimension are provided in a portion corresponding to the upper lip 6, a lower lip 7 connected to one side of the body portion 1, and a surface of the husband's lip. It is composed of a light shielding means 8.

The upper lip 6 and the lower lip 7 are configured such that the portions that come into contact with the photosensitive material 3 are rounded so as not to damage the photosensitive material 3 passing through, and the light blocking means 8 is a strip of light blocking compressed material such as Terempu. It is attached to the lips.

The photosensitive material 3 is initially stored with the tip of the photosensitive material 3 pulled out from the slot 2 of the magazine, and the tip is fastened with tape 10, for example, on the body of the magazine to prevent it from being rewound into the magazine. ing. For example, when loading a magazine into a magazine mounting section of an image forming apparatus, etc., the tape 10 is peeled off so that the leading edge of the photosensitive material 3 is
For example, the photosensitive material 3 is pulled out by being caught in a conveying nip roller of an image forming apparatus.

[Problems to be Solved by the Invention] However, in the conventional magazine for photosensitive materials, as is clear from FIG. 2, the edge 9 of the lower lip 7 of the slot 2 is formed at a nearly right angle. During handling before use, such as during storage and transportation, the photosensitive material 3 is bent due to the angle of this edge portion, and this folded portion causes the photosensitive material 3 to be caught in the nip roller for transportation of the image forming apparatus. This may become an obstacle when pulling out the photosensitive material 3, such as when the photosensitive material 3 is broken, so it is necessary to cut and discard the bent portion before loading it into the magazine mounting section. It was uneconomical to draw out the excess amount after that.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional problems and provide an economical magazine for photosensitive materials that does not require cutting and discarding bent parts, is easy to handle, and does not waste photosensitive materials. It is in.

[Means for solving problems]

Such an object of the present invention is to provide a hollow interior consisting of a rectangular cylindrical body part and two end caps sealing both ends of the body part.
A photosensitive material magazine that stores a roll of photosensitive material wound around a core that is pivotally supported on the inner surface of an end cap, and pulls the photosensitive material out of the magazine through a slot extending along the axis of the core at a corner of one side of the body. This is achieved by a magazine for photosensitive material, characterized in that the edge of at least one lip of the slot is formed into a curved surface that does not crease the photosensitive material.

In the present invention, the material of the cylindrical body part is cardboard, cardboard, or plastic. For example, in the case of cardboard or cardboard, assembly is performed by a folding method, and in the case of plastic, assembly is performed by a profile extrusion molding process or a folding method. I can do it.

In addition, it is desirable to use plastic molding for the two end caps that seal both ends of the body part, as in the conventional case, from the viewpoint of processing accuracy.

As the light shielding means for the slot in the present invention, it is usually possible to use telescopes attached to the opposite affected areas, but the invention is not necessarily limited to this.

The photosensitive material in the present invention is not particularly limited, and includes not only silver salt photosensitive materials (including heat-developable photosensitive materials) but also films and photographic paper of various photosensitive materials.

A feature of the present invention is that at least one of the lips of a slot extending in the entire axial direction of the body part (extending in the direction along the core) provided at a corner of one side of the body part of the photosensitive material magazine is formed into a curved shape. There is a particular thing.

For example, the upper lip of the slit is almost the same shape as the conventional one, but the edge of the lower lip that connects to one side of the torso is
The front end of the photosensitive material pulled out of the magazine is fixed with adhesive tape, for example, and is curved so that the photosensitive material will not be bent or deformed even if it is subjected to external pressure.

[Function] The present invention consists of a rectangular cylindrical body part and two end caps that seal both ends of the body part, and a roll-shaped photosensitive material is accommodated in a light-shielded state, and the body part has a body part in a corner of one side. In a magazine for photosensitive materials in which the photosensitive material is drawn out of the magazine through a slot provided with a light shielding means extending along the entire axial dimension of the body part, the edge of the lip of the slot on the side connected to one surface of the body part is photosensitive. By having a curved surface that does not cause creases in the material, the photosensitive material pulled out from the slot and affixed with tape to one side of the body part will not crease even when subjected to external pressure. When loading the photosensitive material into the photosensitive material, the leading end of the photosensitive material that has been pulled out can be used as a leading edge guide base, and the use of the photosensitive material can be done efficiently. Further, tripe defects due to bending do not occur during transportation of the photosensitive material in the image forming apparatus.

〔Example〕

An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a cross-sectional view of an embodiment of a magazine for photosensitive materials of the present invention. As shown in FIG. 1, a heat-developable photosensitive material 3 wound into a roll having a width of 210 m, for example, is wound around a core 5 and housed in the center of a rectangular body portion 1 of a magazine for photosensitive materials. The photosensitive material 3 has a telescope width of, for example, 10 m between the upper lip 6 and the lower lip 7 of the slot 2, which extends in the corner of one side of the body part 1 so that the total axial dimension of the body part 1 is, for example, 211 mm.
is pulled out of the magazine through the light shielding means 8 pasted with
The lower lip 70 edge 9 of the slot 2 connected to one side of the body part 1 is a concave surface with a radius of curvature R of about 8 m, for example. It is pasted on one side of part 1.

When loading the photosensitive material magazine configured as described above into an image forming apparatus, the tape 10 is simply peeled off, eliminating the need to cut off the leading edge of the photosensitive material as in the conventional case, and also preventing transport problems such as jamming of the photosensitive material 3. I was able to reliably load it without worrying about it.

In the above embodiment, the radius of curvature R was set to 8 m, but the present invention is not limited to the above embodiment. The desirable radius of curvature R can be determined by considering the conditions such as the constituent material of part 1. Usually, it is 4 meters or more, especially 5 meters.
It is preferable to have a radius of curvature greater than or equal to the radius of curvature.

〔Effect of the invention〕

As described above, in the magazine for photosensitive materials of the present invention, the edge of the lip of the slit for drawing the photosensitive material out of the magazine is configured to have an appropriately curved surface, so that the leading edge of the photosensitive material is formed on this curved surface. By locking along the magazine, inconveniences such as creases and deformation at the leading end of the photosensitive material can be prevented during storage or handling of the magazine.

Therefore, when loading a magazine for photosensitive materials into an image forming apparatus or the like, there is no need to cut off and discard the leading end of the photosensitive material as in the past, and the dimensions of the leading end of the photosensitive material exposed outside the magazine can be adjusted in advance to desired dimensions. If this setting is made, there is no need to perform troublesome operations such as adjusting the dimensions of the exposed portion due to cutting of the tip as in the conventional method, and it is possible to provide a magazine for photosensitive materials with excellent handling and economical efficiency.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of an embodiment of a magazine for photosensitive materials of the present invention, FIG. 2 is a cross-sectional view of an example of a conventional magazine for photosensitive materials, and FIG. 3 is a perspective view of a conventional magazine for photosensitive materials. It is a diagram. 1...Body part 2...Slot 3...
・Photosensitive material 4... End cap 5... Winding core 6... Upper lip 7... Lower lip
8... Light shielding means 9... Edge lO・
・・Tape・・− (3 others)

Claims (1)

[Claims] A hollow interior consisting of a rectangular cylindrical body and two end caps that seal both ends of the body contains a roll of photosensitive material wound around a core that is pivotally supported on the inner surface of the end cap. In a photosensitive material magazine in which the photosensitive material is pulled out of the magazine from a slot extending along a core axis at a corner of the magazine, an edge of at least one lip of the slot is configured to have a curved surface that does not crease the photosensitive material. A magazine for photosensitive materials featuring: