JPH0862819A - Rack structure of photosensitive material processor - Google Patents

Abstract

PURPOSE: To stably guide and transport photosensitive materials having a different width with a simple structure capable of guiding at least one end of the photosensitive material in the width direction with a continuous guide groove. CONSTITUTION: A moving plate 110 is energized in the direction separating from a fixed plate 102, and the movement is limited first position) by a stopper 118 to the deal with the dimension of the width of a narrow negative film 12. When the moving plate 110 is moved toward the fixed plate 102 against the pressing force of a compression spring 116, a pawl member 120 is elastically deformed and retained (second position) by the fixed plate 102 to deal with the dimension of the width of a wide negative film. 12. Both ends of the negative film 12 in the width direction are inserted into a guide groove at the first and second positions, and especially the guide groove can be continuously provided on the one side plate 100 side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rack structure for a photosensitive material processing apparatus which guides the conveying direction of a photosensitive material and successively dips it into a plurality of processing tanks in which processing solutions are stored.

[0002]

2. Description of the Related Art An exposed photosensitive material on which a latent image has been formed by being imagewise exposed by a camera or the like is processed by a developing processing apparatus to be visualized.

The developing processing apparatus comprises a processing solution tank containing a developing solution, a fixing solution, a stabilizing solution, washing water and the like, and a drying section. The photosensitive material is developed, fixed, stabilized, washed and dried. Will be processed in order.

Since the photosensitive material is conveyed while being guided by a pair of side plates arranged at regular intervals, it can be stably conveyed without causing meandering or the like.

However, the pair of side plates arranged at regular intervals cannot convey photosensitive materials having different width dimensions. The leader may be attached to the front end of the photosensitive material, but the leaderless conveyance is preferable in consideration of an increase in the attaching / detaching process of the leader and a continuous process for the next process (printer or the like).

For this reason, it has been conventionally proposed to make it possible to convey photosensitive materials having a plurality of widths in the same apparatus.

For example, a rack for guiding the photosensitive material is provided in a processing tank for performing each of the above processes, and an edge guide of the photosensitive material is moved to each of the racks according to its width. It has been proposed to provide a guide width changing means (see Japanese Patent Laid-Open No. 1-205166).

The change of the guide width by the guide width changing means is a complicated mechanism, and there is a problem that it takes a lot of time to change the width of each processing tank.

Further, a width dimension shorter than the minimum width dimension of the photosensitive material to be applied is sandwiched by a pair of rollers, and both widthwise end portions of the photosensitive material are guided to guide grooves provided on both side walls of each processing tank.
A structure has been proposed in which a drive roller is arranged at a predetermined position of this guide groove (see Japanese Utility Model Publication No. 39-21664).

In the structure using the guide groove, there is a problem that the size (width dimension) of the photosensitive material to be conveyed is limited because proper guide cannot be performed according to the width dimension of the photosensitive material.

It is conceivable to provide a plurality of guide grooves in different paths according to the width dimension of the photosensitive material, but this is not preferable because the selection of guide grooves and the introduction structure after selection are complicated.

Further, in the above conventional structure, the guide groove is divided at the roller portion, and when a photosensitive material having a curl tendency or a photosensitive material having a strong stiffness is conveyed, the divided guide groove portion is formed. Therefore, the transport path is dropped off, which causes so-called jamming. That is, dividing the guide groove impairs stable conveyance.

In consideration of the above facts, the present invention can guide at least one widthwise end portion of a photosensitive material by a continuous guide groove, and stably guides and conveys photosensitive materials having different width dimensions with a simple structure. It is an object of the present invention to obtain a rack structure of a photosensitive material processing apparatus which can be manufactured.

[0014]

According to a first aspect of the present invention, there is provided a photosensitive material processing apparatus for guiding a conveying direction of a photosensitive material and dipping the photosensitive material into a plurality of processing tanks in which processing liquids are stored in order. A rack structure having a pair of side plates that pivotally support both ends of a plurality of roller pairs that sandwich a photosensitive material and apply a conveying force, and one end portion in the width direction of the photosensitive material to accommodate a predetermined conveying path. One side plate having a continuous guide groove for guiding, a through hole into which the plurality of roller pairs can be loosely fitted, and the other end portion in the width direction of the photosensitive material are accommodated and guided along a predetermined transport path. Having the other side plate provided with the guide groove, a pair of side plates that axially support both ends of a plurality of roller pairs that sandwich the photosensitive material and apply a conveying force, while maintaining the pair of side plates in a parallel state, The other side plate can be moved toward and away from one side plate Support means for supporting, said pair of side plates has a locking means capable of locking at least two spacing dimension position.

According to a second aspect of the present invention, the other side plate is composed of a fixed plate and a movable plate, one end of the plurality of roller pairs is pivotally supported by the fixed plate, and the guide groove and the through hole are formed. The movable plate is provided on the movable plate, and the movable plate is moved between the one side plate and the fixed plate.

According to a third aspect of the invention, in the invention according to the second aspect, the locking means is provided on the movable plate or the fixed plate, and a claw member capable of locking the fixed plate or the movable plate. A stopper member that restricts movement of the moving plate in the direction of the one side plate, and a biasing unit that biases the moving plate toward the stopper member when the pawl member is not locked. Is characterized by.

According to a fourth aspect of the present invention, in the invention according to the first or second aspect, the locking means is a shaft formed with a male screw screwed to the other side plate, and It is characterized in that it is constituted by a rotation driving means for rotating the shaft.

According to a fifth aspect of the invention, in the invention according to the first or second aspect, the locking means moves the other side plate by a cam mechanism to move the other side plate at least at two predetermined positions. It is characterized by positioning the side plate of.

[0019]

According to the invention described in claim 1, since one side plate is provided with the continuous guide groove, at least one end portion in the width direction of the photosensitive material does not deviate from the continuous guide groove. It can be stably transported.

Here, the other side plate is supported by the supporting means so as to be movable in the contact and separation directions with respect to the one side plate. At this time, the other side plate is provided with through holes corresponding to the plurality of roller pairs, and since the plurality of roller pairs are loosely fitted in the through holes during the movement, a plurality of through holes are provided. It does not interfere with the roller pair.

Further, the locking means can lock the other movable side plate at at least two kinds of distance dimension positions. Therefore, by arranging the other side plate at a desired position, it is possible to obtain an interval dimension suitable for the width dimension of the photosensitive material, and the photosensitive material is a guide groove of a pair of side plates (a guide groove continuous on one side plate). Guided by, it is stably transported without meandering.

According to the second aspect of the present invention, the other side plate is composed of a fixed plate and a movable plate, and the movable plate is moved with respect to the fixed plate so that the pivotal support of the plurality of roller pairs is established. Be certain. Further, the moving plate is moved between the one side plate and the fixed plate, which facilitates the positioning to a desired position.

According to the invention of claim 3, for example,
Attach the claw member to the moving plate. The claw member can be locked to the fixed plate, and therefore, the first position of the fixed plate can be determined by locking the claw member to the fixed plate.

Further, the urging means urges the movable plate in a direction away from the fixed plate. As a result, when the pawl member is in the non-locking state, the moving plate moves in the direction away from the fixed plate by the urging force of the urging means. By arranging the stopper member at a predetermined position within this moving range, the position of the moving plate whose movement is restricted by this stopper member becomes the second position.

If the position of the stopper member can be moved, the movable plate can be positioned at three or more kinds of positions.

According to the fourth aspect of the invention, the shaft on which the male screw is formed is screwed into the other side plate (or moving plate). As a result, the other side plate (moving plate) is moved by the rotation of the shaft by the rotation driving means. Thus, by using the so-called ball screw structure, the position of the other side plate (moving plate) can be determined steplessly.

According to the fifth aspect of the invention, the other side plate (or moving plate) is moved by the cam mechanism. For example, in the structure of claim 2, the movable plate is biased so as to move toward the fixed plate, and the triangular prism-shaped cam member having the inclined surface portion between the fixed plate and the movable plate is moved along the inclined surface portion. The movable plate can be gradually separated from the fixed plate by sequentially inserting the movable plate so as to face the plate (or the fixed plate).

[0028]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an automatic developing apparatus 10 applied to this embodiment. The automatic developing device 10 is surrounded by a frame 14 on the outside and shielded from the inside. In addition, a plurality of support legs are arranged at the lower part of the frame 14 and supported from the floor.

A plurality of standing walls 18 are provided from the bottom of the frame 14.
And a developing tank 20, a bleaching tank 22, a fixing tank 24, water washing tanks 26 and 28, and a stabilizing tank 30 are formed, and processing liquids are stored in the respective tanks (hereinafter referred to as "processing unit 32"). ")).

A film loading section 34 is provided on the left side of the processing section 32 in FIG. This film loading section 34
The holding section 3 in which the cartridge 36 is loaded and held
8 are provided. The negative film 12 is pulled out from the tip of the cartridge 36 loaded and held in the holding portion 38, and is nipped and conveyed by the roller pairs 40 and 42 (conveyed in the direction of arrow A in FIG. 1).

Between the pair of rollers 40 and 42, a pair of guide grooves 60 for guiding both ends of the negative film 12 in the width direction along the conveying direction are provided, and a film sensor 62 and a cutter 44 are arranged. ing.

As shown in FIG. 1, a processing rack 33 is arranged in each processing tank of the processing section 32. Each of the processing racks 33 is immersed in the processing liquid except a part above.

In these processing racks 33, near the liquid surface,
A transport roller 45 configured by a large-diameter roller 45A and a small-diameter roller 45B or a large-diameter roller 45A facing the large-diameter roller 45A is arranged near the bottom and in the middle thereof. Further, a pair of guide grooves 72 for guiding both ends of the negative film 12 in the width direction is arranged between the respective conveying rollers 45 (only one is shown in FIG. 1).

As shown in FIG. 2, the processing rack 3
A plurality of small-diameter rollers 45B are arranged around the large-diameter roller 45A arranged at the bottom of No. 3, and a guide groove 72 is formed at the shaft end portion of these small-diameter rollers 45B to form the negative film 12. The conveyance roller 74 is configured to guide and invert in a stable state along the peripheral surface of the large diameter roller 45A.

Further, as shown in FIG. 3, in the upper part of the processing rack 33, that is, in the processing racks 33 adjacent to each other in the crossover portion 76 above the surface of the processing liquid, the conveying rollers 78 on the outlet side and the guide groove are provided. 80A and the conveying roller 82 on the entrance side and the guide groove 82B face each other. The conveyance roller 78 is configured such that a large-diameter roller 45A and a small-diameter roller 45B are opposed to each other while being inclined at a predetermined angle. It is designed to be sent out toward the carrying roller 82. At this time, the treatment liquid adhering to the surface of the negative film 12 is squeezed by the large-diameter roller 45A and the small-diameter roller 45B and is collected in the tank.

The conveying roller 82 is a large-diameter roller 45.
A and the small-diameter roller 45B are arranged substantially up and down, and the leading end portion of the negative film 12 sent from the carrying roller 78 is sent out. At this time, the large diameter roller 45A
The negative film 12 is directed downward by a guide groove 80B provided along the periphery of the film and is fed into the processing liquid.

As described above, the negative film 12 is conveyed by the processing rack 33 while being curved in each processing tank and between the adjacent processing tanks, and when it is discharged from the final stabilizing tank 30, it is received by the drying section 56. It is supposed to be handed over.

The drying section 56 is provided below the stabilizing tank 30 with a warm air supply means composed of a heater 50 and a blower 52, and the warm air generated by this warm air supply means passes through the duct 54. It is sent to the drying unit 56 as dry air via the. In the drying unit 56, after the negative film 12 fed from the processing unit 32 is conveyed downward by the guide groove 49, it is reversed upward by the turn roller 48, and is further discharged by the guide groove 49.
It guides to A and sends it out of the automatic developing device 10. At this time, the negative film 12 conveyed in the drying section 56 is dried by being heated by the hot air supplied from the hot air supply means.

The automatic developing device 10 having the above-mentioned structure is an automatic developing device 10 to which a so-called leaderless transfer system is applied.
The negative film 12 is guided by each guide groove without a leader so as to surely pass through each processing tank.

The detailed structure of the processing rack 33 will be described below with reference to FIG. FIG. 4 shows the upper part of the processing rack 33 (the vicinity of the lower turn roller 48 is not shown).

The guide groove 72 is formed on one side plate 100.
Is formed without interruption, and the negative film 12 is guided along the guide groove 72. The negative film 12 is conveyed from the upper side to the lower side in the guide groove 72 on the back side in FIG. 4, and the negative film 12 is conveyed from the lower side to the upper side in the guide groove on the front side.

This one side plate 100 and this side plate 100
A circular hole 104 is provided at a predetermined position of each of the other side plates 102 forming a pair, and one end portion of the stay 106 is inserted therethrough. Two ring grooves 106A are respectively formed at the ends of the stays 106, and one side plate 100 is arranged between these ring grooves 106A,
The E-shaped retaining ring 108 is engaged with the ring groove 106A.

As a result, the pair of side plates 100 and 102 are held in a state in which they have a constant distance and are parallel to each other.

The transport roller 45 has a rotary shaft 45C.
Are rotatably supported by the pair of side plates 100 and 102 (which may be rotatably supported by bearings). Here, the both end surfaces of the roller body are provided with a pair of side plates 100,
It is in a state of being closely attached to the surface of 102.

A moving plate 110 is arranged between the pair of side plates 100 and 102. The moving plate 110 is a plate having an auxiliary role of the other side plate 102, and therefore, the other side plate 1 will be referred to below with respect to the moving plate 110.
02 is referred to as a fixed plate 102.

A large-diameter circular hole (not shown) is provided on the movable plate 110 coaxially with the side plate 100 through which the stay 106 is inserted and the circular hole 104 of the fixed plate 102, and a cylindrical collar 112 is fitted therein. Has been done. A collar 112A is provided on the outer periphery of the collar 112, and the amount of protrusion of each collar 112 from both surfaces of the moving plate 110 is kept constant. Further, the moving plate 112 is provided with a through hole 114 into which the transport roller 45 can be loosely fitted. Color 112
A stay 106 is inserted through the stay 106, whereby the moving plate 110 can move in the axial direction of the stay 106. At this time, since the transport roller 45 passes through the through hole 114, there is no interference between the moving plate 110 and the transport roller 45 when the moving plate 110 moves.

A compression coil spring 116 is attached to the protruding portion of the collar 112 between the movable plate 110 and the fixed plate 102, whereby the movable plate 110 is biased in a direction away from the fixed plate 102. . A stopper 118 is attached to the center of the stay 106 to limit the amount of movement of the moving plate 110 that is moved by the biasing force of the compression coil spring 116. The moving plate 110 is attached to the stopper 118.
In the contact state (first position), the width of the negative film 12 is narrow (width W 2 _FILM shown in FIG. 5). That is, at the first position, both widthwise ends of the narrow negative film 12 can be accommodated in the guide groove 72.

On the side surface of the moving plate 110, the claw members 12 are provided.
0 is integrally formed. The claw member 120 is projected toward the fixed plate 102, and the movable plate 110 is fixed to the fixed plate 102 against the biasing force of the compression coil spring 116.
When moved in the direction, the claw member 120 is elastically deformed, and the tip end portion thereof is locked by the fixed plate 102. This locked state is the second position of the moving plate 110,
Wide negative film 12 (width W _1FILM shown in FIG. 5)
It corresponds to the width dimension of. That is,
At the second position, both widthwise ends of the wide negative film 12 can be accommodated in the guide groove 72.

The operation of this embodiment will be described below. In the automatic developing apparatus 10 of the present embodiment, the exposed negative film 12 in the cartridge 36 loaded in the cartridge loading section 34 is exposed.
Is drawn out and fed into the processing section 32.

When substantially the entire amount of the negative film 12 is pulled out of the cartridge 36, the cutter 44 cuts the rear end of the negative film 12 to separate the cartridge 36 and the negative film 12.

In the processing section 32, the negative film 12 is conveyed while being curved by the processing racks 33 arranged in the respective processing tanks, and the negative film 12 is sequentially immersed in the processing liquid for processing. The negative film 12 processed by the processing unit 32 is sent to the drying unit 56, heated in the drying unit 56 to be dried, and then discharged to the outside of the automatic developing device 10.

In this automatic developing device 10, the processing rack 3
The processing section 32 in which the curved conveying path of the negative film 12 is formed in the guide groove 72 and the conveying rollers 45 and 74 in FIG.
Send to. At this time, as shown in FIG. 3, a case where the negative film 12 passes through the crossover portion 76 in which the curved conveyance path of the negative film 12 is formed will be described with reference to FIG.

In the crossover section 76, the large diameter roller 45A and the small diameter roller 45B (conveying roller 7) are introduced from within the processing tank.
The leading end of the negative film 12 is guided by the guide groove 72 into the space 8). At this time, the leading end of the negative film 12 is guided between the transport rollers 78 while being curved by the guide groove 72. In this state, the negative film 12
Of the small diameter roller 45B and the large diameter roller 45A by the small diameter roller 45B.
Will be guided to.

Here, the negative film 12 includes a narrow negative film and a wide negative film, and it was difficult to guide and convey them by the same processing rack because of a complicated structure. Further, since the guides at both ends of the negative film 12 in the width direction are temporarily removed, stable conveyance cannot be performed.

However, in this embodiment, the negative film 12 is used.
The guide width can be adjusted in accordance with the width dimension of the negative film 12, and at least one of the negative films 12 in the width direction is constantly guided.
2 can be stored. The procedure of the width adjusting mechanism will be described below.

First, when the wide negative film 12 is guided and conveyed, as shown in FIG.
10 against the biasing force of the compression coil spring 116
Move in 02 direction.

This movement is performed by moving the moving plate 110 through the through hole 114.
Since it is provided, it does not interfere with the transport roller 45, and since the stay 106 is guided by the collar 112, it can be moved smoothly.

When the claw member 120 interferes with the fixed plate 102 by this movement, the claw member 120 is elastically deformed. When the movement is further continued, the tip of the claw member 120 passes the side surface of the fixed plate 102, the elastic deformation is released, and the claw member 120 returns to the original shape. As a result, the moving plate 110 can be locked to the fixed plate 102 via the claw member 120. This locked state is the second position, and one side plate 10
The distance between 0 and the moving plate 110 is wide negative film 1
2 corresponds to the widthwise dimension (width dimension W ₁ where the spacing dimension is slightly narrower). As a result, both widthwise ends of the negative film 12 are reliably guided by the guide grooves 72. In addition, since the guide groove 72 of the one side plate 100 is continuously provided without interruption, the negative film 12 does not deviate from the regular transport path, and the negative film 12 is prevented.
Can be stably transported.

Next, when guiding and transporting the narrow negative film 12, the claw member 120 is moved from the state of FIG.
The locking to the fixing plate 102 by the is released. This is because by elastically deforming the tip of the claw member 120, the urging force of the compression coil spring 116 acts and the moving plate 110 moves in a direction away from the fixed plate 102. The claw member 12
The release of 0 from the fixing plate 102 may be performed manually by an operator, or some sort of unlocking jig or the like may be used.
Further, a moving mechanism for releasing the claw member may be provided on the fixed plate 102.

When the locking state of the claw member 120 is released,
As described above, the moving plate 110 moves along the stay 106 in the direction away from the fixed plate 102. Here, the movement of the compression coil spring 116 due to the urging force is restricted when one side plate-side protruding portion of the collar 112 contacts the stopper 118 (see FIG. 5B). This position is the first position, and the distance dimension between the one side plate 100 and the movable plate 110 corresponds to the width direction dimension of the narrow negative film 12 (the distance dimension is slightly narrower than the width dimension W ₂ ). This allows
Make sure that the widthwise ends of the negative film 12 have the guide grooves 7
Guided by 2. Also at this time, one side plate 10
Since the 0 guide groove 72 is continuously provided without interruption, the negative film 12 does not deviate from the regular transport path, and the negative film 12 can be stably transported.

As described above, in the present embodiment, the two negative films 12 having different width dimensions are surely guided and conveyed by the single processing rack 33, so that the versatility can be improved. At this time, at least one end in the width direction of the negative film 12 is not interrupted,
Since the state of being accommodated in the guide groove 72 can be maintained, the negative film 12 can be stably conveyed without causing meandering or the like.

In this embodiment, the moving plate 110 is moved manually by the operator. However, as shown in FIG. 6, the shaft 122 having the male screw is attached to the moving plate 11.
The moving plate 110 can be easily moved by using a so-called ball screw mechanism 128 that is screwed into 0 and rotates the shaft 122 (via the gear 126) with the driving force of the motor 124. In this case, even if the compression coil spring 116 and the stopper 118 are not provided, the position of the moving plate 110 can be recognized by reading the rotational speed of the motor 124 with an encoder or the like, and the moving plate 110 can be moved to two positions. Instead, it can be positioned at a desired position steplessly.

Contrary to the present embodiment, as shown in FIG. 7, the moving plate 110 is biased in the direction of the fixed plate 102 by the compression coil spring 130, and the fixed plate 102 and the moving plate 110 are moved.
If a wedge type (triangular prism) cam 132 is inserted into and removed from the cam drive device 134, the cam 1
At the position of 32, the distance between the movable plate 110 and the fixed plate 102, that is, the distance between the movable plate 110 and one side plate 100 can be freely changed.

Further, the moving plate 110 may be slid in the direction perpendicular to the axis of the stay 116.

Further, in the present embodiment, the tip of the negative film 12 is made to be a normal flat surface (cut at a right angle to the transport direction), but as shown in FIGS. 8 (A) to 8 (C). If it is cut into a slope or an arc so that the continuous guide groove 72 (on one side plate 100 side) is passed first, the reliability of the conveyance can be improved.

[0066]

As described above, in the rack structure of the photosensitive material processing apparatus according to the present invention, at least one widthwise end of the photosensitive material can be guided by the continuous guide groove.
It has an excellent effect that it is possible to stably guide and convey photosensitive materials having different width dimensions with a simple structure.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an automatic development processing apparatus according to this embodiment.

FIG. 2 is an enlarged view of an inversion section at the bottom of the processing tank.

FIG. 3 is an enlarged view of the vicinity of a crossover rack.

FIG. 4 is an exploded perspective view of a processing rack.

FIG. 5 (A) is a part of the processing rack showing the position of the moving plate when it is adapted to a wide negative film, and (B) is a part of the processing rack showing the position of the moving plate when it is adapted to a narrow negative film. It is a side view shown.

FIG. 6 is a side view when a moving plate is moved using a ball screw mechanism.

FIG. 7 is a side view when a moving plate is moved using a cam mechanism.

FIG. 8A to FIG. 8C are plan views showing the shape of the tip of the negative film.

[Explanation of symbols]

 10 Automatic Developing Device (Photosensitive Material Processing Device) 12 Negative Film (Photosensitive Material) 33 Processing Rack 45 Conveying Roller 72 Guide Groove 100 Side Plate (One Side Plate) 102 Fixed Plate (Other Side Plate) 110 Moving Plate 106 Stay (Supporting Means) 116 Compression Coil Spring 118 Stopper (Stopper Member) 120 Claw Member (Locking Means)

Claims (5)

[Claims] 1. A rack structure of a photosensitive material processing apparatus for guiding a conveying direction of a photosensitive material and dipping the photosensitive material in a plurality of processing tanks in which processing liquids are sequentially processed, wherein the photosensitive material is sandwiched and conveyed. A pair of side plates axially supporting both ends of a plurality of roller pairs for applying force, and one side plate having a continuous guide groove for accommodating one end portion in the width direction of the photosensitive material and guiding it along a predetermined conveyance path. ,
And the other side plate having a through hole in which the plurality of roller pairs can be loosely fitted and a guide groove for accommodating the other end portion in the width direction of the photosensitive material and guiding the photosensitive material along a predetermined conveying path. And a pair of side plates that axially support both ends of a plurality of roller pairs that sandwich and provide a conveying force, and while maintaining the parallel state of the pair of side plates, the other side plate in the contact and separation direction with respect to the one side plate. A rack structure for a photosensitive material processing apparatus, comprising: a supporting unit that movably supports, and a locking unit that can lock the pair of side plates at at least two types of distance dimension positions. 2. The other side plate is composed of a fixed plate and a movable plate, one end of the plurality of roller pairs is pivotally supported by the fixed plate, and the guide groove and the through hole are provided in the movable plate for movement. The rack structure of the photosensitive material processing apparatus according to claim 1, wherein the plate is moved between the one side plate and the fixed plate. 3. The locking means is provided on a movable plate or a fixed plate and can be locked to the fixed plate or the movable plate, and a stopper for restricting the movement of the movable plate in the one side plate direction. 3. The rack structure of the photosensitive material processing apparatus according to claim 2, further comprising: a member; and a biasing unit that biases the movable plate toward the stopper member when the claw member is not locked. 4. The locking means comprises a shaft formed with a male screw screwed to the other side plate, and a rotary drive means for rotating the shaft. The rack structure of the photosensitive material processing apparatus according to claim 1 or 2. 5. The photosensitive material according to claim 1, wherein the locking means moves the other side plate by a cam mechanism to position the other side plate at at least two predetermined positions. Rack structure of processing equipment.