JP2780769B2 - Photosensitive material processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographic material processing apparatus (hereinafter referred to as a photographic processing apparatus). More specifically, the present invention relates to a photographic processing apparatus that can reliably guide the width of a photographic photosensitive material (hereinafter, referred to as photographic paper) conveyed to a developing unit or the like of the photographic processing apparatus.

[0002]

2. Description of the Related Art As shown in FIG. 2, a conventional photographic processing apparatus draws out a photographic paper S wound in a roll on a magazine 101, and then uses an exposure mechanism 102 to convert an image of a developed photographic film F. A printing unit 103 for printing on the photographic paper S, a developing unit 104 for passing the photographic paper S printed by the printing unit 103 through various processing layers and performing a developing process, and a developing process by the developing unit 104 Drying unit 105 for drying the printed photographic paper S, and drying unit 1
And a print cut unit 106 for separating the photographic print P of the photographic paper S dried by the use of the image printing unit 05 for each image. A submerged rack 1 for guiding and transporting the photographic paper S is provided to the developing unit 104 and the drying unit 105.
07 and a drying rack 108 are provided. In each of the racks 107 and 108, for example, a guide width which can adjust a distance between a pair of guides for guiding both width side edges of the photographic paper S by a feed screw shaft in which opposite screws are formed. Modification means are provided.

[0003]

However, since the submerged rack 107 and the drying rack 108 are each provided with a guide width changing means, the number of components such as drive motors increases, and the equipment cost tends to increase. There is. Further, according to the width dimension of the photographic paper S, the feed screw shaft is rotated to individually adjust (set) a pair of guide widths.
Must.

As a result, the maintenance and inspection work tends to be troublesome, and the setting of the submerged rack 107 and the drying rack 108 tends to be erroneous. For example, if the guide width in the drying rack 108 is smaller than a regular set value, However, there is a problem that the printing paper S cannot be transferred from the submerged rack 107 to the drying rack 108, and the printing paper S is jammed.

SUMMARY OF THE INVENTION In view of the circumstances described above, the present invention provides an inexpensive photographic processing apparatus in which the guide width of a rack for guiding the transfer of photographic paper can be surely set, maintenance is easy, and inexpensive. With the goal.

[0006]

According to the present invention, there is provided a photographic processing apparatus comprising: a developing section for developing a photographic paper on which an image recorded on a developed photographic film is printed; A photographic processing apparatus comprising at least a drying unit for drying the photographic paper,
The guides are provided between racks for guiding the printing paper in the developing section and the drying section, and the guides are provided between guide width changing mechanisms that can adjust a distance between a pair of guides that guide both width side edges of the printing paper. And a guide width synchronizing mechanism for synchronizing the width movement.

The guide width synchronizing mechanism is connected to a slide connecting means in the guide width changing mechanism.

The guide width synchronizing mechanism comprises guide width synchronizing means comprising a plurality of width adjusting rack gears and pinion gears, and driving means connected to the pinion shaft.

The guide width synchronizing means in the guide width synchronizing mechanism and the slide connecting means in the guide width changing mechanism are separable by uneven coupling.

[0010]

According to the photographic processing apparatus of the present invention, the guide interval of the guide width changing mechanism in the submerged rack and the drying rack can be synchronously moved by the guide width synchronizing mechanism. Therefore, there is no mistake in setting the guide width in each rack.

Further, since the guide width changing mechanism is separable from the guide width synchronizing mechanism by concavo-convex connection, the space between the guides can be set to a set value simply by loading the submerged rack and the drying rack into the apparatus main body. Can be tuned to.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A photographic processing apparatus according to the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a schematic perspective view showing one embodiment of a guide width synchronizing mechanism used in the photographic processing apparatus of the present invention.

First, a photographic processing apparatus according to the present invention comprises a developing section for developing a photographic paper on which an image recorded on a developed photographic film is printed by passing the photographic paper through various processing tanks; And a drying unit for drying the photographic paper developed by the method.

As shown in FIG. 1, a submerged rack unit 1 and a drying rack unit 21 for guiding and transporting the photographic paper S are installed in each processing tank of the developing unit and in the drying unit. I have.

A guide width changing means 3 provided between a pair of upright side plates 2a and 2b is connected to the submerged rack 1 via a first transmission shaft 4 to the guide width changing means 3. A guide width changing mechanism A including the first slide connecting means 5 is provided.

The guide width changing means 3 includes a pair of side plates 2.
a feed screw shaft 7 erected on both sides a and 2b and having oppositely oriented male screws 6a and 6b on both sides, and nuts 8a and 8b screwed to the male screws 6a and 6b of the feed screw shaft 7
And a pair of guides 9a and 9b each having a U-shaped cross section and attached to the nuts 8a and 8b.
By rotating the feed screw shaft 7 forward and backward,
The distance (guide width) between the pair of guides 9a and 9b can be adjusted so as to match the width of the photographic paper S by increasing or decreasing the interval (guide width).

The first slide connecting means 5 comprises a rack gear 10.

The first transmission shaft 4 is rotatably provided in the submerged rack portion 1 and has a bevel gear 12 formed at a lower portion thereof for meshing with a bevel gear 11 formed on the feed screw shaft 7. A pinion gear 13 meshing with the rack gear 10 is formed on the upper part. The horizontal movement of the first slide connecting means 5 can be transmitted to the guide width changing means 3 as a rotational movement by the first transmission shaft 4.

On the other hand, a guide width changing means 3 similar to the submerged rack section 1 and a second transmission shaft 24 connected to the guide width changing means 3 are connected to the drying rack section 21.
Guide width changing mechanism B including the slide connecting means 25
Is provided.

The second slide connecting means 25 includes a slide rack gear 29 having a convex piece 27 on one side and teeth 28 formed on the other side, a pinion gear 30 meshing with the teeth 28 at one end, and a bevel gear at the other end. And a rotating shaft 32 formed with the same.

The second transmission shaft 24 is rotatably provided upright in the drying rack portion 21, and a bevel gear 33 that meshes with the bevel gear 11 formed on the feed screw shaft 7 is formed below the second transmission shaft 24. A bevel gear 34 that meshes with the bevel gear 31 of the rotating shaft 32 is formed at an upper part.

The photographic processing apparatus according to the present invention comprises: a guide width changing mechanism A, B in the developing section and the drying section;
A guide width synchronizing mechanism C for synchronizing the width movement of a pair of guides 9a and 9b for guiding both width side edges of the photographic paper S by the guide width changing mechanisms A and B is provided.

The guide width synchronization mechanism C is connected to the first slide connection means 5 and the second slide connection means 25 of the guide width change mechanisms A and B, respectively.

The guide width synchronizing mechanism C comprises a guide width synchronizing means 43 and a driving means 44 for driving the means 43.
It is composed of

The guide width synchronizing means 43 includes a pinion shaft 4 on which two pinion gears 45a and 45b are formed.
5, and width adjusting rack gears 46 and 47 meshed with the pinion gears 45a and 45b, respectively.

The width adjusting rack gear 46 is connected to a slide plate 49 having a rectangular notch 48 into which the rack gear 10 is fitted.
For example, it is slidably guided and supported by a member that regulates the guide width. Further, a stopper pin 51 for restricting the movement of the rack gear 46 outside the allowable range is fitted in the long groove 50 formed at the upper end of the rack gear 46. On the other hand, the rack gear 47 is formed with a concave portion 52 for inserting the convex piece 27 of the slide rack gear 29 in the second slide connecting means 25, and is slidably guided and supported by a stationary member as described above. ing.

The driving means 44 includes a width changing motor 53.
A friction unit 54 for preventing damage to each component due to overload, a detection plate 56a and a sensor 56 connected to an output shaft 55 having the pinion shaft 45 extended.
b and the friction unit 5
4 and a worm 57 and a worm wheel 58 connecting the output shaft 55.

Next, the operation of the guide width synchronization mechanism C in the photographic processing apparatus of the present invention will be described.

First, the width information of the photographic paper S on which the image of the photographic film F shown in FIG. 2 is to be printed is compared with the current guide width position obtained from the detector 56 shown in FIG. After the rotation direction of the motor 53 is determined, the motor 53 is rotated.

For example, when the distance between the pair of guides 9a, 9b of the guide width changing means A, B in the submerged rack portion 1 and the drying rack portion 21 is increased, the rotation of the width changing motor 53 causes the output shaft 55 to be connected to the output shaft 55. 1 shows the pinion shaft 45
Rotate in the direction a shown in the figure. Accordingly, the rotation of the motor 53 is controlled by the pinion gear 45a and the rack gear 4a.
6 allows the linear motion of the slide plate 49 and the rack gear 10 to be changed. In the submerged rack portion 1, this linear motion is converted into a rotary motion again by the first transmission shaft 4, and the feed screw shaft 7 is driven to rotate, and a pair of guides 9a, 9
b is expanded in the b direction shown in FIG. As a result, the printing paper S
Is reliably guided by the guides 9a and 9b, so that trouble such as clogging does not occur.

On the other hand, also in the drying rack section 21, by the rotation of the width changing motor 53, the rotational movement of the motor 53 is changed to the linear movement of the second slide connecting means 25 by the pinion gear 45b and the rack gear 47. This linear motion is converted into a rotary motion again by the second transmission shaft 24, which drives the feed screw shaft 7 to rotate, and the pair of guides 9
a, 9b are spread in the direction b shown in FIG. As a result, the printing paper S conveyed from the submerged rack unit 1 is surely transferred and guided by the guides 9a and 9b of the drying rack unit 21.

In the photographic processing apparatus of the present invention, the guide width synchronizing mechanism C and the guide width changing mechanism A in the submerged rack portion 1 are formed into an uneven connection by the rectangular notch 48 of the slide plate 49 and the rack gear 10. . Similarly, the guide width synchronizing mechanism C and the guide width changing mechanism B in the drying rack section 21 are formed into a concave and convex connection by the concave portion 52 of the rack gear 47 and the convex piece 27 of the second slide connecting means 25. Therefore, the submerged rack unit 1 and the drying rack unit 21
Can be installed in the developing section and the drying section of the apparatus, respectively.
And the width of the pair of guides can be accurately synchronized with the set value of the photographic paper being conveyed. Also, after the loading, for cleaning and inspection work,
This is very convenient because the submerged rack unit 1 or the drying rack unit 2 can be easily removed.

[0034]

As described above, according to the photographic processing apparatus of the present invention, a pair of guides for simultaneously moving and synchronizing a pair of guides between a guide width changing mechanism in a rack section of a developing section and a drying section. By providing the guide width synchronization mechanism, there is no mistake in setting the guide width of the submerged rack and the drying rack. Therefore, it is possible to prevent troubles such as clogging or detachment of the photographic paper, and it is possible to stably transport the photographic paper.

The guide width synchronizing mechanism includes a guide width synchronizing means including a pinion shaft formed with two pinion gears and two width adjusting rack gears, and a driving means including a width changing motor and a detector. , The number of parts is small and the structure is simple, so that the equipment cost is low.

Further, the submerged rack section of the developing section and the drying rack section of the drying section can be attached to and detached from the guide width synchronization mechanism by slide connecting means. Therefore, simply load the submerged rack and the drying rack into the main unit,
Since the pair of guide widths can be tuned to the set value, maintenance and workability are improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a guide width synchronizing mechanism used in a photographic processing apparatus of the present invention.

FIG. 2 is an explanatory diagram illustrating an example of a photographic processing device.

[Explanation of symbols]

 1 Submerged rack section 9a, 9b Guide 21 Drying rack section A, B Guide width changing mechanism C Guide width synchronization mechanism S Printing paper

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G03D 3/00-17/00

Claims (4)

(57) [Claims] 1. A developing unit for developing a photographic material on which an image recorded on a developed photographic film is printed, and a drying unit for drying the photographic material developed by the developing unit. And a rack for guiding the photosensitive material in the developing section and the drying section, and a pair of guides for guiding both width side edges of the photosensitive material. A guide width synchronizing mechanism for synchronizing the width movement of the guide between the guide width changing mechanisms capable of adjusting the distance between the guides. 2. The photographic material processing apparatus according to claim 1, wherein said guide width synchronizing mechanism is connected to slide connecting means in said guide width changing mechanism. 3. The photographic light-sensitive material according to claim 1, wherein said guide width synchronizing mechanism comprises a guide width synchronizing means comprising a plurality of width adjusting rack gears and pinion gears, and a driving means connected to said pinion shaft. Processing equipment. 4. The photographic light-sensitive material processing according to claim 1, wherein the guide width synchronizing means in the guide width synchronizing mechanism and the slide connecting means in the guide width changing mechanism are separable by uneven coupling. apparatus.