JP2584816B2 - Developing device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a developing device having a portion for exposing an image to a photosensitive material and for developing the exposed photosensitive material.

(Background technology)

Some developing devices include an exposing unit for exposing an image to a photosensitive material in front of a developing tank. Since the photosensitive material whose image has been exposed in the exposure section is supplied from the upper part of the developing tank to the developing tank, the height of the exposing section is almost the same as the height near the entrance of the developing tank.

However, when a light source and optical means for image exposure are arranged above the photosensitive material, if the photosensitive material in the exposure section is at a high position, sufficient operation space for the optical means and the like cannot be obtained, and the optical means and the like are not provided. When the moving range of the device is increased, the height of the entire apparatus is increased.

In view of the above, it is an object of the present invention to provide a developing device in which an exposure unit is lowered to secure a sufficient operation range of an optical unit and the like, and that a control strip can be easily supplied to a developing unit from above. It is.

[Summary of the Invention and Function]

The present invention is a developing device for developing a photosensitive material of an exposed portion provided with an image exposure unit for the photosensitive material, and supplies the exposed photosensitive material to the developing device after lifting the photosensitive material from a low position to a high position. An interface rack that can be inserted and withdrawn, a container storing the control strips so as to be able to be pushed out, a passage for passing the container to an upper portion of the interface rack, and the container provided in an upper portion of the interface rack and inserted into the passage. And a strip guide that joins the control strip extruded from the developing device into the processing conveyance path of the developing device.

For this reason, in the present invention, in a system in which the photosensitive material printed in the exposure unit is lifted to a high position by the conveyance unit and then supplied to the development unit, the operation range of the optical unit and the like can be sufficiently secured. Since a guide for supplying the control strip is provided above the conveying means for raising the photosensitive material, the supply of the control strip from above becomes extremely easy.

In addition, the control strips stored in the container,
When the control strip is extruded from the container while being inserted into the passage, the strip is guided by the strip guide so as to join the processing transport path.

(Example of the invention)

FIG. 1 shows a developing device 10 to which the present invention is applied.

In the developing device 10, a developing tank 12, a fixing tank 14, and a washing tank 16 are arranged side by side, and the photosensitive material F after an image is printed by a printing unit 18 is developed. A drying unit 22 is provided above the developing tank 12, the fixing tank 14, and the washing tank 16 so that the photosensitive material F taken out of the washing tank 16 is dried and then sent upward. This drying section 22
Is pivotally supported on the end of the washing tank 16 by a hinge 24, and is pivoted clockwise in FIG. 1 around the hinge 24 to open the developing tank 12 so that the developing tank 12 can be repaired. .

In the printing unit 18, the photosensitive material F is accommodated in a magazine 28, and the taken out photosensitive material F is sent to the developing tank 12 via the exposure unit 30 and the rising and conveying means 32 as an interface rack. ing.

A light source 34 and a mirror 36 are arranged above the printing unit 18 so that an image of a negative film 38 as an original can be exposed to the photosensitive material F in the exposure unit 30 through an optical unit 42.

As shown in FIG. 2, the rising and conveying means 32 is an interface rack provided so as to be able to be inserted and removed, and a plurality of pairs of conveying rollers 44 and 46 for sandwiching the photosensitive material F are provided, and these are arranged in parallel. It is supported by a pair of side plates 48 (a front side plate is not shown in FIG. 2), and rotates by receiving a driving force of a motor (not shown). A guide plate 50 is provided between the pair of conveying rollers, and lifts the photosensitive material F fed from the exposure unit 30 in the horizontal direction from a low position to a high position, and inverts the photosensitive material F at the upper end to form the developing tank 12. It is designed to supply to the upper part.

A cassette 52 penetrates through the drying unit 22 and is inserted into an upper portion of the rising and transporting means 32.

As shown in FIGS. 3 and 4, in the cassette 52, both ends in the width direction of the plate-shaped cassette main body 54 are bent at right angles to be bent portions 54A extending in parallel with each other. The contact portion 54B is bent at a right angle in the direction away from each other.
The tip of the contact portion 54B is a holding portion 54C which is bent at a right angle and becomes parallel to each other. Cover plate 5
Reference numeral 8 is a flat plate that can be accommodated between the holding portions 54C, and has dimensions such that both ends in the width direction abut on the holding portions 54C. The lid plate 58 is in close contact with the cassette body 54, and forms a rectangular strips accommodation portion 62 between the bent portions 54A.

Therefore, a control strip (not shown) on which a predetermined image is printed in advance under a predetermined condition is inserted into the strip storage section 62. Light-shielding felt members 64 and 66 are adhered to the inner circumference of the end of the strip housing 62 so that external light does not accidentally enter the inserted control strip from both ends of the cassette 52.

Further, an insertion plate 68 can be inserted into the strips accommodation portion 62 from one end thereof. The insertion plate 68 is held at a bent pressing portion 68A formed at the protruding tip of the insertion plate 68, and the insertion plate 68 is inserted into the strips accommodation portion 6.
The inserted strips are pushed out from the lower end portion by being inserted into the inside 2.

A flange portion 72 as a projection is projected from the outer periphery of the cassette body 54 and the lid plate 58 so as to be in contact with the upper end of the drying unit 22 and is provided on the drying unit 22 as shown in FIG. The insertion amount of the cassette 52 into the cassette insertion hole 22A is determined.

As shown in FIG. 2, a light-shielding cover 74 is pivotally supported by a pin 76 at the lower end of the cassette insertion hole 22A. To prevent the outside light from entering the developing tank 12 and the printing section 18, but the cassette 52 is inserted into the cassette insertion hole 22A.
When the cassette 52 is inserted, the lower end of the cassette 52
Rotated about 76, the cassette 52 can be inserted a predetermined amount as shown in FIG.

Guide plates 78 and 80, which are strip guides provided at the upper end of the rising and conveying means 32, correspond to the lower end of the cassette 52, and these control strips are extruded vertically downward from the cassette 52. Inlet roller 10 of developing tank 12
It is designed to be sent between A and 10B.

 Next, the operation of the present embodiment will be described.

As shown in FIG. 1, the photosensitive material F accommodated in the magazine 28 is pulled out from the leading end and sent to the exposure unit 30, where the image of the negative film 38 is printed. Photosensitive material F after printing
Is transported in the horizontal direction and sent to the rise transport unit 32.
The rising and conveying means 32 lifts the photosensitive material F from a low position to a high position by the conveying rollers 44 and 46 and supplies the photosensitive material F to the developing tank 12. Therefore, even when the exposure unit 30 is provided at a relatively low position of the printing unit 18, the photosensitive material F can be easily supplied to the developing tank 12 having the upper entrance portion. The space above the exposure section 30 can be sufficiently secured to form a large printing light passage space.

The photosensitive material F sent to the developing tank 12 is fixed in the fixing tank 14, the washing tank.
After being subjected to development processing via 16, it is sent to the drying unit 22 and is taken out after drying.

When supplying the control strip to the developing tank 12, the control strip is inserted into the cassette 52 in advance, and the control strip is inserted into the drying unit 22 as shown in FIG. Before the insertion, the light-shielding felt members 64 and 66 block both ends of the strips housing portion 62 from the outside, so that the control strips are maintained in the light-shielded state.

When the insertion plate 68 is pressed into the cassette 52, the control strip is pushed out from the opposite side and supplied through the guide plates 78 and 80 to the space between the inlet rollers 10A and 10B. For this reason, the control strips which have been printed in advance under predetermined conditions are taken out through the developing tank 12, the fixing tank 14, the washing tank 16 and the drying section 22, so that the printing conditions can be confirmed and corrected.

〔The invention's effect〕

As described above, in the present invention, the control means is provided with a control strip supply guide from the upper part of the conveying means for feeding the photosensitive material after being exposed from the exposure unit from the low position to the high position and then supplying the photosensitive material to the developing tank. It has an excellent effect of facilitating the supply of control strips without impairing the advantage of lowering the exposed portion in the portion.

[Brief description of the drawings]

FIG. 1 is a sectional side view showing a developing position to which the present invention is applied, FIG. 2 is an enlarged sectional view showing a portion for transferring a photosensitive material from an exposure unit to a development unit, and FIG. 3 contains a control strip. FIG. 4 is an exploded perspective view of the cassette, and FIG. 4 is a sectional view of the cassette. F: photosensitive material, 10: developing device, 12: developing tank, 14: fixing tank, 16: washing tank, 18: printing unit, 30: exposure unit, 32: start-up conveyance means, 78, 80 ... A guide plate.

Claims (1)

(57) [Claims] A developing device for developing an exposed photosensitive material provided with an image exposing section for the photosensitive material, wherein the exposed photosensitive material is lifted from a low position to a high position and then supplied to the developing device. An interface rack that can be inserted and withdrawn, a container storing the control strips so as to be able to be pushed out, a passage for passing the container to an upper portion of the interface rack, and the container provided at an upper portion of the interface rack and inserted into the passage. A strip guide that joins the control strips extruded from the container to a processing conveyance path of the developing device.