JPH0554927B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magazine used for removably storing rolled photosensitive sheets made of, for example, photographic paper.

[Conventional technology]

For example, in the production of photographs, a photographic film is developed to obtain a negative film, and then a printing process is required in which the image of the negative film is printed onto photographic paper. In this printing process, a light-tight storage magazine containing a roll of photographic paper is usually attached to the printing machine, and the roll of photographic paper is pulled out from this magazine while rotating and transported to a processing area in a darkroom. Then, the image on the negative film is printed.

However, when forming a photograph, it is usually necessary to select the size, paper quality, etc. of the photographic paper based on instructions from the orderer, and the instructions from the orderer vary widely. For example, if photographs are required with different photographic paper qualities, such as silk or glossy, it is of course necessary to change the photographic paper used in the printing process as appropriate. . Specifically, based on the orderer's instructions, the paper is sorted by type of photographic paper, such as silk or glossy, and after the printing process for a certain type of photographic paper is completed, the photographic paper is cut and pulled out. The unprinted portion of the photographic paper is rewound into the magazine so that the photographic paper is not exposed to light unnecessarily, and then the magazine is replaced with a magazine containing the next type of photographic paper in a bright room, and the printing process is performed using the next type of photographic paper. I try to do it. This is because when exchanging magazines in a dark room, it is necessary to provide a dark room for this exchange, which increases costs, and when exchanging magazines in a bright room. However, if the photographic paper is not rewound, the unprinted portion that has been pulled out will be exposed and wasted.

Conventionally, a rotation mechanism dedicated to rewinding was provided, and the magazine was configured so that the roll of photographic paper stored therein could be rotated by the rotation mechanism from outside the magazine, and this rotation mechanism was used to manually or automatically print images. Techniques are known that allow paper to be rewound.

[Problem that the invention seeks to solve]

However, in recent years, there has been a strong desire for an automatic printing machine with a simple construction and low cost that allows end-users such as camera stores to easily print photographs. However, in such a simple automatic printing machine, if a rotation mechanism dedicated to rewinding is provided as in the past, the device becomes complicated and costs are high.Moreover, the magazine requires rotational torque from the rotation mechanism. There is a problem in that a special structure is required in order to maintain light-shielding properties in the receiving portion. It is also necessary to sufficiently transmit the rotational torque to the roll of photographic paper stored in the magazine, and for this reason, for example, a rotation shaft that can be connected to a rotation mechanism is provided in the magazine, and the roll of photographic paper is moved through its hollow core. Store the magazine so that the axis of rotation is located inside.
A possible configuration would be to reduce the gap between the hollow core of the photographic paper and the rotating shaft of the magazine so that rotational torque is transmitted through friction, but in such a configuration, the roll of photographic paper would be kept in the dark to avoid exposure to light. Although it is necessary to store the magazine indoors, it is difficult to insert the rotating shaft of the magazine into the hollow core of the rolled photographic paper, which poses the problem of requiring considerable effort to store the paper in the darkroom. There is.

[Purpose of the invention]

The present invention has been made based on the above-mentioned circumstances, and an object of the present invention is to easily perform unwinding without requiring a special rotation mechanism for unwinding, thereby eliminating the need for photosensitive sheets. To provide a magazine for storing a rolled photosensitive sheet, which prevents exposure to light and makes economical use of the photosensitive sheet, and allows the magazine to be easily replaced in a bright room depending on the purpose.

[Means for solving problems]

The magazine for storing rolled photosensitive sheets of the present invention includes: a case for storing rolled photosensitive sheets in a light-blocked state; a holding section provided in the case for rotatably holding the rolled photosensitive sheets; A drawer part provided in the case for pulling out the rolled photosensitive sheet from the case to a printing processing section, and a drawer part provided in the case for rewinding the pulled out photosensitive sheet with the tip cut off. In order to manually rotate the rolled photosensitive sheet in a light-shielded state, a manual dark bag having a light-blocking property that reaches the core of the rolled photosensitive sheet is provided in the window formed in the case. It is characterized by the fact that it becomes

According to this configuration, the rolled photosensitive sheet can be rotated while keeping the inside of the magazine in a light-shielded state using a manual dark bag having light-shielding properties, and rewinding can be easily performed.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIGS. 1A, 1B, and 1C show an embodiment in which the present invention is applied to a magazine for storing photographic paper used for printing photographs.

Reference numeral 1 denotes a case, which is configured so that when the top lid 11 is closed, no light enters from the outside and the inside of the case 1 is in a light-blocking state. 12 is the upper lid 11
13 is a hinge for opening and closing the upper lid 11. 14 is a handle; 15 is a rubber foot for mounting; 2 is a holder for rotatably holding the rolled photosensitive sheet; this holder 2 is cylindrical; It is fixed to the bottom wall 16. The holder 2 protrudes from the bottom wall 16 of the case 1 at a substantially right angle, and its tip 22 is a free end, and this tip 22 is tapered to facilitate storage of the rolled photosensitive sheet. .

3 is a roll of photographic paper which is a roll of photosensitive sheet, and 31 is a cylindrical paper core. The rolled photographic paper 3 is housed in the case 1 so that the holder 2 is located within the paper core 31. The outer diameter of the holder 2 is sufficiently smaller than the inner diameter of the paper core 31 so that the inner wall of the paper core 31 can freely rotate around the outer wall of the holder 2.

41 is one paper width regulation guide, 42 is the other paper width regulation guide, and these paper width regulation guides 4
The distance between the paper width regulating guides 41 and 42 is slightly larger than the paper width of the roll of photographic paper 3.
42, the positions of one side edge and the other side edge of the rolled photographic paper 3 are regulated, thereby suppressing displacement of the rolled photographic paper 3 in the width direction. One paper width regulation guide 41 is fixed to the bottom wall 16 of the case 1, and the other paper width regulation guide 42 is fixed to the mounting plate 4.
It is fixed to the upper cover 11 by 22, and when the upper cover 11 is opened, it is removed from the specified position, allowing the rolled photographic paper 3 to be stored in the case 1.

Reference numeral 5 denotes a drawer section for drawing out the rolled photographic paper 3 from the case 1 to the printing processing section, and an upper exit guide 51 that projects outward from the corner of the case 1.
and a lower exit guide 52, light-shielding felts 511 and 521 made of velvet cloth or the like provided on the opposing surfaces of the upper exit guide 51 and the lower exit guide 52, respectively, and the upper exit guide 51.
and a holding and fixing part 53 that holds and fixes the lower exit guide 52. The upper exit guide 51 and the lower exit guide 52 are provided with photographic paper insertion openings 54 that are widened apart from each other at the inner ends of the case, and the portions extending from the openings 54 to the ends protruding outside the case. In this case, the light-shielding felts 511 and 521 are in contact with each other, thereby preventing light from entering from the outside. The holding and fixing part 53 has a screw 5 at its case inner end 531.
32 to the case 1, and as shown in FIG. 2, the delivery roller 6 and the pressure roller 7 (see FIG. 1A) provided in the printing machine are received at the case outer projecting end 533. receiving part 53
4 is provided. When the magazine is installed in the printing machine, the photographic paper 32 that has been pulled out to the tip of the holding and fixing part 53 has its upper and lower surfaces exposed to the outside in the receiving part 534. The photographic paper 32 is pulled out and conveyed to the processing area by being pinched by the pressure roller 7 and rotating the delivery roller 6.

Reference numeral 8 denotes a manual dark bag having a light-shielding property, and the opening edge 81 of this dark bag 8 is sandwiched between a locking receiving plate 82 and a locking presser plate 83 over its entire circumference. In this state, the dark bag 8 is clamped and fixed by screws 84, thereby providing light-shielding properties at the attachment portion of the dark bag 8. 9 is a window for rewinding consisting of a rectangular opening provided in the side wall 17 of the case 1;
The locking receiving plate 82 is integrally formed by bending a portion of the side wall 17 from each side of the window portion 9 into the case 1 at a substantially right angle. The material of the dark bag 8 needs to have light-shielding properties, and is preferably strong enough to not break easily and flexible, such as rubber, cloth, rubberized cloth, or plastic. The dark bag 8 can be formed from film material, polyethylene, or the like. If the thickness of the dark bag 8 is too thick, it is not preferable because the workability during manual operation will be poor. The depth of this dark bag 8 is
It is sufficient if the user can reach the paper core 31 of the roll of photographic paper 3 stored in the case 1 when the hand is inserted into the dark bag 8. When this dark bag 8 is not in use, it may be stored in the side space of the roll of photographic paper 3 in the case 1, or it may be stored in the window 9.
It may also be exposed outside the case 1. Although not shown, double dark bags are provided and holes are made in appropriate parts of each of these dark bags to form case 1.
It is also possible to configure the roll of photographic paper so that it can be directly touched while maintaining its light-shielding properties.

In the magazine having the above configuration, the rolled photographic paper 3 is stored in the case 1 in the following manner. That is, in a dark room, the case 1 is placed on an appropriate stand so that the rubber feet 15 are in contact with each other, and the upper lid 11 is
is opened, the rolled photographic paper 3 is stored so that the holder 2 is located inside the paper core 31, and the paper leading edge 32 of the rolled photographic paper 3 is inserted into the upper exit guide 51 and the lower exit guide 52 in the drawer section 5. It is inserted through the photographic paper insertion opening 54 on the inner end side and pulled out to the receiving part 534 outside the case 1 of the holding and fixing part 53, and then the top lid 11 is closed. Then, the protruding portion is pushed back into the case 1 or cut so that the leading edge 32 of the paper matches the edge of the holding and fixing portion 53 in the receiving portion 534.

When the magazine in which the rolled photographic paper 3 is stored in this way is set in the printing machine, it is placed in the receiving section 53.
The leading edge of the photographic paper exposed in step 4 is connected to feed roller 6.
and the pressure roller 7, and preparation for feeding is completed. Next, when the delivery roller 6 starts rotating, the photographic paper is automatically conveyed to the printing processing area.

Now, when the printing process for a certain type of photographic paper is completed, the leading edge of the unprocessed photographic paper has been sent out to the printing process area, so the photographic paper is first cut at that leading edge. Next, the pressure roller 7 is separated from the delivery roller 6, and in this state, the hand is inserted into the dark bag 8 through the window 9, and the rolled photographic paper 3 is grasped by hand through the dark bag 8, or The unprocessed photographic paper portion protruding from the drawer opening 5 is rewound into the case 1 by gripping the paper core 31 and rotating it in the opposite direction to the direction in which it is sent out. When rewinding is completed, the magazine is removed from the printing machine, and a magazine containing the type of photographic paper required for the next printing process is attached to the printing machine in the same way to perform the next printing process.

As described above in detail, according to the above embodiment, the roll of photographic paper 3 is stored in the case 1 so as to be freely rotatable, and the dark bag 8 is provided so that the photographic paper 3 can be grasped in a light-blocking state. Since it is provided in the case 1, when rewinding, it is possible to easily achieve rewinding by inserting a hand into the dark bag 8, and as a result, there is no need to add a dedicated rotation mechanism for rewinding. With a simple configuration, rewinding can be easily achieved, and as a result it is possible to print with different types of photographic paper by changing the magazine, while using it economically without exposing the photographic paper unnecessarily. It becomes possible to perform processing efficiently.

Although the example in which the rolled photosensitive sheet is photographic paper has been described above, the present invention is applicable not only to photographic paper but also to cases where a rolled photosensitive sheet such as photographic film is used.

〔Effect of the invention〕

As described above in detail, the present invention includes a case for storing a rolled photosensitive sheet in a light-blocked state, a holding section provided in the case for rotatably holding the rolled photosensitive sheet, and a holding section for rotatably holding the rolled photosensitive sheet. A drawer part provided in the case for pulling out the rolled photosensitive sheet from the case to the printing processing section, and a roll housed in the case for rewinding the pulled out photosensitive sheet with the tip cut off. A window formed in the case is provided so that the shaped photosensitive sheet can be manually rotated in a light-shielded state.
This is a magazine for storing rolled photosensitive sheets, which is characterized by being equipped with a manual dark bag that has light-blocking properties that can reach the core of the rolled photosensitive sheets, so it has a special rotating mechanism for rewinding. It is possible to easily rewind without the need for rewinding, preventing unnecessary exposure of the photosensitive sheet and making economical use of the photosensitive sheet, while making it easy to replace the magazine in a bright room depending on the purpose. A magazine for storing rolled photosensitive sheets can be provided.

[Brief explanation of the drawing]

Figures 1A, 2B, and 1C are an explanatory vertical front view, a partially vertical right side view, and a partially vertical left side view, respectively, showing one embodiment, and Figure 2 is an explanatory diagram schematically showing a drawer part. FIG. 1...Case, 11...Top lid, 13...Hinge,
2... Holder, 31... Paper core, 41, 42...
Paper width regulation guide, 5...Drawer section, 51...Upper exit guide, 52...Lower exit guide, 53...
Holding and fixing part, 54... Opening for inserting photographic paper, 6...
... Delivery roller, 7 ... Pressure roller, 8 ... Dark bag, 81 ... Opening edge, 82 ... Locking plate,
83...Locking presser plate, 84...Screw, 9...Window portion.

Claims (1)

[Claims] 1. A case for storing a rolled photosensitive sheet in a light-shielded state, a holding part provided in the case for rotatably holding the rolled photosensitive sheet, and a holding part provided in the case for storing the rolled photosensitive sheet. A drawer section for pulling out the sheet from the case to the printing processing section, and a manual operation of the rolled photosensitive sheet stored in the case in a light-shielded state in order to rewind the pulled out photosensitive sheet with the tip cut off. A roll-shaped photosensitive sheet comprising: a manual dark bag having a light-blocking property that can reach the core of the roll-shaped photosensitive sheet, and is provided in the window portion formed in the case so that the sheet can be rotated by hand. Magazine for seat storage.