JP2001097619A - Photosensitive material storage device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a photosensitive material storage device for reducing the size of a photo printing device or the like by arranging a loop forming means inside the storage device. SOLUTION: This storage device is provided with a first roller pair 71 arranged inside a container 4 for clamping photographic paper 2 fed from a roll body 3 and rotationally driven for pulling out the paper 2 and a second roller pair 72 arranged inside the container 4 apart from the first roller pair 71 at a fixed distance for clamping the photographic paper fed from the first roller pair 71 and rotationally driven for conveying the photographic paper 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for accommodating a photosensitive material which is mounted on a photographic printing apparatus or the like.

[0002]

2. Description of the Related Art Conventionally, as an apparatus for accommodating a photosensitive material used in a photographic printing apparatus or the like, generally, as shown in FIG. Paper magazine D is known.

[0003] This paper magazine D is used, for example, by being mounted on a photoprinting apparatus. When using it,
The printing paper A drawn from the paper magazine D is sequentially passed through a first roller pair E and a second roller pair F provided in a photographic printing device, and then printing exposure is performed by an exposure mechanism G.

Further, as described in JP-A-7-28171, it is necessary to form a loop on the photographic paper A after the paper magazine D is pulled out. Therefore, the rotation of the first roller pair E and the second roller pair F is controlled such that the printing paper A between them relaxes to form a loop. By forming a loop on the printing paper A between the first roller pair E and the second roller pair F in this manner, the second roller pair F
By making the drawing load torque of the photographic paper A constant, the photographic paper A can be stably supplied to the exposure position.

[0005] The photo printing apparatus is provided with a movable guide H which can swing about the first roller pair E. The movable guide H guides the leading end portion of the printing paper A drawn from the paper magazine D. In order to form a loop of the printing paper A, the first roller pair E and the second roller pair F are separated by a certain distance. It is necessary by being installed.

[0006]

By the way, there are many cases where a photo printing apparatus or the like to which a paper magazine D is mounted is installed in a small shop or the like. For this reason, there has been a strong demand for downsizing of a photographic printing apparatus and the like, and there is a strong demand for the development of new technologies.

SUMMARY OF THE INVENTION The present invention has been made in view of such technical problems, and has as its object to provide a photosensitive material storage device that can be downsized such as a photographic printing device.

[0008]

That is, an apparatus for accommodating a photosensitive material according to the present invention is an apparatus for accommodating a photosensitive material provided with a container for accommodating a roll formed by winding the photosensitive material into a roll. And at least two pairs of rollers that sequentially hold the photosensitive material pulled out from the roll body and form a loop in the photosensitive material by rotational driving.

In addition, the photosensitive material accommodating device according to the present invention comprises:
Further, a loop sensor is provided for detecting a loosened state of the photosensitive material between the pair of rollers.

According to these inventions, a loop of the photosensitive material can be formed in the container for containing the photosensitive material.
Therefore, there is no need to form a loop in the photosensitive material outside the storage device. Therefore, it is possible to reduce the size of a photo printing device to which the storage device is attached.

[0011] Further, the apparatus for storing a photosensitive material according to the present invention comprises:
The tangential direction between the pair of rollers forming the loop on the photosensitive material is not parallel to each other.

According to the present invention, a loop can be easily formed in the direction in which the tangents of each roller pair intersect. Therefore, a loop can be formed at a desired position, and a loop can be formed above the roller pair.

[0013]

Embodiments of the present invention will be described below with reference to the accompanying drawings. In each of the drawings, the same elements are denoted by the same reference numerals, and redundant description will be omitted. Also, the dimensional ratios in the drawings do not always match those described.

FIG. 1 shows an apparatus for accommodating a photosensitive material according to the present embodiment.

As shown in FIG. 1, a storage device 1 according to the present embodiment stores a roll 3 in which a photographic paper 2 as a photosensitive material is wound in a roll shape. A container 4 is provided. The container 4 is a box that blocks transmission of light inside and outside the container 4, and a drawer 5 is provided at a front portion 42 of the container 4. The drawing-out section 5 is a section for drawing out the photographic paper 2 fed from the roll body 3, and a front section 42 of the container 4.
It is formed so as to protrude from. Whether or not the photographic paper 2 is pulled out from the drawer 5 is determined by the photographic printing device 80.
It is detected by a sensor 51 installed on the side.

The handle 6 is provided on the back 41 of the container 4. The container 4 has a back portion 41 and a front portion 42 which are vertically divided, and a hinge 43 is provided at a bottom portion thereof.
2 are rotatably connected. Therefore, by rotating the back part 41 about the hinge 43, the container 4
The roll body 3 can be loaded therein.

A gear 44 is provided on the side of the container 4. The gear 44 meshes with other gears and the like installed in the photo printing apparatus to which the container 4 is attached, and rotates by receiving power from the photo printing apparatus side. The core 31 of the roll body 3 is coupled to the gear 44, and the roll body 3 can be rotated by rotating the gear 44.

A first roller pair 71 is provided inside the container 4. The first roller pair 71 is for feeding out the printing paper 2 from the roll body 3 and forming a loop (annular loosened portion) 14 a in the printing paper 2, and includes two rollers for sandwiching the printing paper 2. I have. The first roller pair 71 is disposed so as to be parallel to the axial direction of the roll body 3. The first roller pair 71 rotates by receiving a rotational driving force, and the rotational driving force is transmitted from a photographic printing device outside the storage device 1. The rotation of the first roller pair 71 may be performed by a drive source such as a motor built in the container 4, but the rotation of the first roller pair 71 is controlled by receiving a control signal from the photoprinting apparatus.

A second roller pair 7 is provided inside the container 4.
2 are installed. The second roller pair 72 is for carrying out the printing paper 2 out of the container 4 and forming a loop 2 a in the printing paper 2, and includes two rollers for holding the printing paper 2. The second roller pair 72 is oriented so as to be parallel to the axial direction of the roll body 3 similarly to the first roller pair 71, and the first roller pair 71 is formed so that the loop 2 a can be formed on the printing paper 2. They are arranged at a fixed distance. This second roller pair 72 is desirably installed near the drawer 5.

The second roller pair 72 rotates upon receiving a rotational driving force, and the rotational driving force is transmitted from a photographic printing device outside the storage device 1. The rotation of the second roller pair 72 may be performed by a drive source such as a motor built in the container 4, but the control of the rotation is performed by receiving a control signal from the photographic printing apparatus.

The first roller pair 71 and the second roller pair 7
2 are installed such that the tangential directions between the paired rollers are not parallel to each other. For example, the tangential direction of the first roller pair 71 is set so that the downstream side of the conveyance is obliquely upward, and the tangential direction of the second roller pair 72 is set to be substantially horizontal. By arranging the first roller pair 71 and the second roller pair 72 in this manner, a loop of the photographic paper 2 can be easily formed in a direction where each tangent intersects, and a loop can be formed at a desired position. Can be. In addition, a loop can be formed above the first roller pair 71 and the second roller pair 72 by using the stiffness of the printing paper 2. Further, it is possible to omit the installation of a guide for preventing the formation of an unnecessary loop, and the loading of the photographic paper 2 into the paper magazine 1 becomes easy. Further, paper jam caused by formation of an unnecessary loop below can be prevented.

A loop sensor 73 is provided inside the container 4. The loop sensor 73 includes the first roller pair 7
1. A detecting means for detecting the state of relaxation of the photographic paper 2 between the second pair of rollers 72, and includes a light emitting element for emitting light outside the photosensitive wavelength range of the photographic paper 2 and a light receiving element for receiving the light.

Next, a description will be given of a method of use and operation of the storage device 1 according to the present embodiment.

FIG. 2 is an explanatory view of a method of using the storage device 1. As shown in FIG. 2, the storage device 1 is used, for example, mounted on a photo printing device 80. In this case, the accommodation device 1 functions as a supply unit of the photographic paper 2 of the photo printing device 80.

The accommodation device 1 has a first roller pair 71 and a second roller pair 72 which form a loop on the photographic paper 2 inside.
And functions as a loop forming unit of the photographic paper 2. Therefore, the photo printing device 80 does not need to be provided with a pair of rollers as a loop forming unit in the transport path of the photographic paper 2. Therefore, the space for installing the roller pair can be omitted in the photo printing apparatus 80, and the size of the photo printing apparatus 80 can be reduced.

The storage device 1 has a loop sensor 73 for detecting the loosened state of the photographic paper 2 inside, and functions as a loop detecting means. For this reason, it is not necessary to provide the photoprinting device 80 with a loop sensor serving as a loop detecting means near the transport path of the photographic paper 2. Therefore, the space for installing the loop sensor in the photo printing apparatus 80 can be omitted, and the size of the photo printing apparatus 80 can be reduced.

The storage device 1 is placed near an exposure mechanism 82 built in the photo printing device 80, and the drawer 5 is inserted into the photo printing device 80. In addition, the accommodation device 1
The gear 44 provided on the side of the photo printing device 80
Meshed with the gear installed in the gearbox.

By rotating the roller pair 72 in this state, the roll 3 in the storage device 1 is rotated, and the photographic paper 2 is fed from the roll 3.

At this time, the first pair of rollers 71 and the second pair of rollers 72 are rotated so that a loop is formed between the first pair of rollers 71 and the second pair of rollers 72 on the photographic paper 2 by a certain relaxation. Done.

For example, when the loop of the printing paper 2 is small, the rotation speed of the second roller pair 72 is
The rotation speed of the first roller pair 71 is made slower than the rotation speed of the second roller pair 72 when the loop of the printing paper 2 is large. As a result, a certain loop is formed on the printing paper 2 between the first roller pair 71 and the second roller pair 72. The size of the loop of the photographic paper 2 is
It is detected by the loop sensor 73.

The photographic paper 2 passing through the second roller pair 72 is conveyed through the drawer 5 between the roller pair 81 incorporated in the photographic printing apparatus 80. At this time, since a loop for forming a loop is not provided in the transport path of the photographic paper 2, the leading end portion of the photographic paper 2 can be moved along a predetermined transport path without a movable guide for guiding the photographic paper 2. Can be transported. Therefore, there is no need to provide a movable guide in the photo printing device 80.

The printing paper 2 conveyed by the roller pair 81 is printed and exposed by an exposure mechanism 82 built in the photographic printing device 80. That is, the printing paper 2 is gradually transported in the transport direction indicated by the arrow in FIG. 2 by the rotation of the roller pair 81, and is sequentially scanned by the exposure mechanism 82 in a direction substantially orthogonal to the transport direction to perform exposure. At this time, since the printing paper 2 has a loop formed in the accommodation device 1 in advance, the transport load of the printing paper 2 by the roller pair 81 can be reduced, and the proper exposure of the printing paper 2 by the accurate transport of the printing paper 2 by the roller pair 81 can be achieved. Becomes possible.

As described above, according to the accommodating apparatus 1 according to the present embodiment, by providing the first roller pair 71 and the second roller pair 72 in the container 4, the printing of the photosensitive material in the container 4 is performed. A loop can be formed in the paper 2. Therefore, there is no need to form a loop on the photographic paper 2 outside the storage device 1. Accordingly, there is no need to provide a loop forming space for the photographic paper 2 in the photo printing device 80 to which the storage device 1 is attached, and the size of the photo printing device 80 can be reduced.

Further, by providing a loop sensor 73 for detecting the loose state of the photographic paper 2 between the first roller pair 71 and the second roller pair 72 in the container 4 of the storage device 1, 2 can surely form a loop.

The first roller pair 71 and the second roller pair 7
2 are arranged such that the tangential directions between the rollers are not parallel to each other, whereby a loop of the printing paper 2 can be easily formed in a direction in which each tangent intersects, and a loop is formed at a desired position. Can be.

In this embodiment, the housing device 1 mounted on the digital photoprinting apparatus 80 has been described. However, the photosensitive material housing device according to the present invention is not limited to such. As shown in FIG. 3, a surface exposure type photographic printing apparatus 90 for printing an image of a negative film may be used. Even in this case, the same operation and effects as those of the accommodation device 30 described above can be obtained.

In the present embodiment, the apparatus for accommodating the photosensitive material according to the present invention mounted on a photographic printing apparatus has been described. However, the apparatus for accommodating the photosensitive material according to the present invention employs such a device. It is not limited to
It may be used by attaching it to a device other than the photo printing device.

[0038]

As described above, according to the present invention, by providing a pair of rollers for forming a loop on a photosensitive material in a container, a loop can be formed on the photosensitive material in the container. Therefore, there is no need to form a loop in the photosensitive material outside the storage device. Therefore, it is not necessary to provide a space for forming a loop of a photosensitive material in a photographic printing device or the like to which the storage device is attached, and the size of the photographic printing device can be reduced.

Further, by providing a loop sensor for detecting the loosened state of the photosensitive material between the pair of rollers in the container,
A loop can be reliably formed in the photosensitive material by the storage device.

Further, since the pair of rollers forming the loop in the photosensitive material are installed so that the tangential directions between the rollers are not parallel to each other, the loop of the photosensitive material can be easily formed in the direction in which the tangents of the roller pairs intersect. Can be formed.
Therefore, a loop can be easily formed at a desired position.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a storage device according to an embodiment.

FIG. 2 is an explanatory diagram of a method of using the storage device of FIG. 1;

FIG. 3 is an explanatory diagram of a method of using the storage device of FIG. 1;

FIG. 4 is an explanatory diagram of a conventional technique.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... accommodation apparatus, 2 ... photographic paper (photosensitive material), 3 ... roll body, 4 ... container, 71 ... 1st roller pair, 72 ... 2nd roller pair, 73 ... loop sensor, 80 ... photographic printing apparatus.

Claims (3)

[Claims] 1. An apparatus for storing a photosensitive material comprising a container for accommodating a roll formed by winding a photosensitive material in a roll shape, wherein the photosensitive material is disposed in the container and sequentially holds the photosensitive material drawn out from the roll. A photosensitive material storage device, comprising: at least two pairs of rollers that form a loop in the photosensitive material by rotational driving. 2. The photosensitive material storage device according to claim 1, further comprising a loop sensor for detecting a loose state of the photosensitive material between the pair of rollers. 3. The photosensitive material storage device according to claim 1, wherein the roller pair forming a loop in the photosensitive material has tangential directions between the paired rollers that are not parallel to each other.