JPH01201660A - Rack for photographic film processing machine - Google Patents

Abstract

PURPOSE:To easily attach/detach a carrying roller to and/from a rack side plate by limiting movement in the axial direction of the carrying roller by a claw part, and simultaneously, making the claw part displaceable elastically in the direction vertical to the axial direction by a notch in the shaft diameter direction provided on the claw part. CONSTITUTION:In case of assembling a carrying roller 68 to rack side plates 46, 48, carrying roller supporting shafts 72, 74 are inserted into a through-hole for fixing a bearing provided on the side plate, and a bearing 76 is inserted into the tip of the carrying roller supporting shafts 72, 74. In this case, claw parts 72D, 74D provided on the tip of the supporting part are brought to diameter contraction by being displaced toward the direction vertical to the axial direction (namely, to the inner part in the radial direction) and pass easily through the inside of the bearing 76, and returned to its original shape again by elastic force after the passing (namely, displaced to the outer part in the radial direction). Also, the bearing 76 is moved in the axial direction and fixed to the side plate. In this state, the bearing 76 is pinched between the claw parts 72D, 74D and the roller side plates, and the movement in the axial direction of the carrying roller 68 is limited. In such a way, the carrying roller can be attached/detached easily to/from the rack side plate.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a rack for a photographic film processing machine, which is disposed in a processing tank and supports a transport roller for transporting a photosensitive material.

[Conventional technology]

A rack supporting rollers for conveying the photosensitive material is arranged in the photosensitive material processing tank.

In the rack, a pair of side plates are fixed substantially parallel to each other by stays or the like, and a plurality of rollers for conveying photosensitive material are supported between these side plates with a plurality of water hooks being passed between them.

Both ends of the rotating shaft of the photosensitive material conveying roller are rotatably supported by being inserted into bearings fixed to each of the pair of side plates. Furthermore, a fixing ring is inserted into the tip of the rotating shaft inserted into the bearing to prevent it from moving in the axial direction.

The gear that transmits the rotational driving force to the photosensitive material conveying roller is pivotally supported by one of the pair of side plates, and meshes with the gear attached to one of the rotating shafts of the photosensitive material conveying roller to transmit the rotational driving force. The signal is transmitted to the rollers for conveying the photosensitive material.

This gear is fixed to a shaft inserted into a bearing fixed to one of a pair of side plates. Further, this gear is prevented from moving in the axial direction by a fixing ring inserted into the shaft.

[Problem that the invention seeks to solve]

However, when removing the photosensitive material transport roller from between the pair of side plates during maintenance such as cleaning the rack, after removing the fixing ring etc. from the roller's rotating shaft,
This operation is complicated because the bearing is moved in the axial direction, the bearing is pulled out from the side plate, and the roller is removed from between the pair of side plates.

In addition, when attaching a roller for conveying photosensitive material between a pair of side plates, after placing the roller between the side plates, insert the bearing from the outside between the side plates onto the rotating shaft of the roller, move the bearing in the axial direction, and move the roller between the side plates. Fix it to.

Next, a fixing ring that prevents the roller from moving in the axial direction is inserted into the rotating shaft, which is a complicated operation.

The present invention has been made in consideration of the above facts, and an object of the present invention is to provide a rack for a photographic film processing machine in which the conveyance rollers can be easily attached to and detached from the side plates of the rack.

[Means for solving problems]

To achieve the above object, the present invention provides a photographic film having a rack side plate, a bearing attached to the rack side plate, and a conveyance roller supported by a conveyance roller support shaft on the rack side plate via the bearing. In the rack for a processing machine, the conveyance roller support shaft has one end fitted into one end of the conveyance roller, and another end of the conveyance roller support shaft having a bearing portion on the opposite side of the conveyance roller. It consists of a claw part that projects to an external force, and a support part that is pivotally supported by the bearing between the insertion part and the claw part, and the claw part restricts the movement of the conveyance roller in the axial direction, It is characterized in that the claw portion is elastically displaceable in a direction perpendicular to the axial direction by a notch provided in the claw portion in the axial diameter direction.

[Effect]

According to the present invention, when assembling the conveyance roller to the rack side plate, the conveyance roller support shaft is inserted into the through hole for fixing the bearing provided in the side plate, and the bearing is inserted into the tip of the conveyance roller support shaft. At this time, the claw provided at the tip of the support part is displaced in a direction perpendicular to the axial direction (that is, radially inward) to reduce its diameter and easily pass through the bearing. It returns to its original shape (i.e. is displaced radially outward) by elastic forces. Further move the bearing in the axial direction and fix it to the side plate. In this state, the bearing is held between the claw portion and the roller side plate, thereby restricting movement of the conveyance roller in the axial direction. Thereby, the conveyance roller is pivotally supported and attached to the rack side plate.

In addition, when removing this transport roller from the rack side plate, displace the claw at the tip of the support in a direction perpendicular to the axial direction (that is, radially inward) to reduce the diameter, and then remove the bearing in the axial direction. Remove the bearing from the support by moving it outward from the side plate along the arrows. Next, the conveyance roller is tilted and pulled out from the through hole for fixing the bearing in the side plate, thereby removing it from the rack side plate.

As described above, in the present invention, the claw portion is provided at the tip of the support portion, and the claw portion is displaced in a direction perpendicular to the axial direction, so that the work of attaching and removing the conveyance roller to the rack side plate is facilitated.

[Embodiments of the invention]

FIG. 1 shows a photographic film processing machine to which the present invention is applied.
An example of O is shown.

A developing tank 14, a fixing tank 16, and a washing tank 18 are fixed in the photographic film processing machine 10 via a bracket 13 to the machine frame 12, and the film 22 inserted from the insertion stand 20 is inserted into each of these processing tanks. After being sequentially dipped by the transport rollers of the arranged transport rack 24, it is taken out and transferred to the drying section 2.
After being dried in step 5, the film is taken out to a film stocker 27.

A developer inlet rack 28 is arranged above the developer tank 14 near the insertion stand 20 and guides and transports the film 22 inserted from the insertion stand 20 into the developer tank 14.

A developing cross-over rack 30 is arranged between the developing tank 14 and the fixing tank 16, and squeezes out the developer from the film 22 sent out from the developing tank 14 and guides the film 22 into the fixing tank 16. It is designed to be transported.

A fixing crossover rack 32 is arranged between the fixing tank 1G and the washing tank 18, and it squeezes out the fixing solution from the film 22 sent out from the fixing tank 16 and guides the film 22 into the washing tank 18. It is designed to be transported.

Further, a squeeze rack 34 is arranged between the washing tank 18 and the drying section 26. This squeeze rack 34 is equipped with a plurality of rollers 36, which squeeze out the washing water adhering to the film 22 sent out from the washing tank 18, guide it to the upper part of the drying section 26, and dry it from the upper part. The film 22 is inserted into the section 26.

The film 22 inserted from the top of the drying section 26 is passed through a plurality of transport rollers 38 arranged in a staggered manner vertically.
, and the film L is lowered from the film discharge port 26A.
It is accumulated in the stocker 27.

Further, a plurality of hot air blowing pipes 40 are arranged in the drying section 26 on both sides of the conveying roller 38. This hot air blowing pipe 40 is connected to a drying fan 42 disposed inside the photographic film processing machine 10.
It is communicated with. These warm air blow-off pipes 40 are provided with a plurality of hot air discharge ports along the axial direction. Therefore, the hot air blown from the drying fan 42 is blown from the hot air blowing pipe 40 onto both sides of the film 22 being conveyed.

As shown in FIG. 1, a heat exchanger 35 is disposed on the machine frame 12 below the developer tank 14, the fixing tank 16, and the washing tank 18. This heat exchanger 35 has a circulation pump 3 on the way.
The developer tank 14 is communicated with the developer tank 14 via a conduit 39 via the developer tank 7 .

Therefore, the developer in the developer tank 14 is sent to the heat exchanger 35 by one operation of the circulation pump 37, cooled by the heat exchanger 35, and sent out into the developer tank 14 again.

Furthermore, a developer replenishment tank 41 and a fixer replenishment tank 43 are placed at the bottom of the photographic film processor 10.

These replenishment tanks contain a developer replenisher and a fixer replenisher, and are supplied to the developer tank 14 and the fixer tank 16 by a supply device (not shown).

As shown in FIG. 2, the transport rack 24 is provided with a pair of side plates 46 and 48.
6.48 are fixed in parallel and facing each other by five stays 50.52.54.56.58 provided between the side plates 46.480 to form a rack. Further, the stays 50, 52, 54 are arranged at the upper part between the side plates 46, 48, and the stay 56.58 is arranged at the lower part between the side plates 46, 48.

Among the stays 50.52.54 arranged at the top, the stays 50.52 are arranged in parallel along the width direction of the side plate,
The other stay 54 is arranged below the stay 50.

Four guides 62 are attached to the stay 54 in the axial direction. This guide 62 is formed in the shape of a circular arc, and its inner surface is arranged toward the outside of the side plates 46, 48. For this reason, the film 22 being conveyed is bent and guided downward.

Further, four guides 64 are attached to the stay 54 along the axial direction. This guide 64 has the same shape as the guide 62, and is arranged with its inner surface facing inward of the rack. Further, four guides 66 having the same shape as the guide 62 are attached to the stay 56 along the axial direction, and are arranged to face the guides 64 with their inner surfaces facing inward of the rack.

Below the guide 62, a pair of conveyance rollers 68 are installed on the side plate 4.
6.48 are arranged in parallel along the width direction. As shown in FIGS. 3 and 4, these conveyance rollers 68 have conveyance roller support shafts 72 and 74 fitted into both ends of a hollow roller portion 70.

The roller portion 70 is molded from phenol resin, acrylic resin, or the like. As shown in FIG. 4, the insertion portion 112.
Is 114 the insertion part? 2A, 74A and stopper part 72
It consists of B, 74B.

The conveyance roller support shaft 72 fitted into one end of the roller section 70 has an insertion section 72A into the roller section 70 formed in its head, and is fitted into the hollow portion of the conveyance roller 68.

Further, the conveyance roller support shaft 72 has a stopper portion 72B whose diameter is enlarged from the insertion portion 72A and has the same diameter as the roller 70. When the conveyance roller support shaft 72 is inserted into the roller 70, the roller 70 is stopped. It comes into contact with the end face and is used for positioning in the axial direction.

Further, a support portion 72C having a smaller diameter than the stopper portion 72B integrally extends from the conveyance roller support shaft 72. A claw portion 72D is formed at the tip of this support portion 72C.

The diameter of the claw R2D is larger than the support portion 72C, and the diameter is gradually reduced toward the tip. Furthermore, a notch 72E is provided at the tip end in the diametrical direction of the shaft. Therefore, the claw portion 72D can be elastically displaced in a direction perpendicular to the axial direction of the conveyance roller support shaft 72.

The conveyance roller support shaft 72 is inserted into a shaft hole 76A of a bearing 76 inserted into a through hole 46A of the side plate 46. This bearing 76 is provided with a rotation prevention means (not shown) so that it does not rotate within the through hole 46A. The bearing 76 is molded from nylon-based synthetic resin. Also, this bearing 76
is provided with an enlarged diameter portion 76B that is larger in diameter than the portion fixed to the side plate 46, and a groove 76C is formed over the entire circumference of the intermediate portion of this enlarged diameter portion 76B.

As shown in FIG. 3, a tension coil spring 75 is wound around this groove 76C between a bearing 76 that pivotally supports the other of the pair of conveyance rollers 68, and presses the pair of conveyance rollers 68. It is supposed to be done.

On the other hand, the conveyance roller support shaft 74 inserted into the other end of the roller section 70 has a head portion connected to the insertion section 74 into the roller section 70.
A is formed similarly to the conveyance roller support shaft 72. Also, like the conveyance roller support shaft 72, the stopper portion 74B1
Although the support portion 74C1 has a claw portion, 74D, and a notch 74E, the support n14c of the conveyance roller support shaft 74 is formed longer than the support portion 72C of the conveyance roller support shaft 72.

The support portion 74C of this conveyance roller support shaft 74 is inserted into a shaft hole 76A of a bearing 76 fixed to the side plate 48, and the tip of the support shaft 74C protrudes outward between the side plates 46, 48. A gear 78 is provided at the tip of the protruding support shaft 74C.
is fixed.

These pair of conveyance rollers 68 are connected to the side plates 46.4 by means of conveyance roller support shafts 72.74 attached to both ends.
It is pivoted on 8.

Further, a pair of conveyor rollers 6 are provided below between the side plates 46 and 48.
A pair of conveyance rollers 80 having the same shape as 8 are attached to the side plates 46 and 48.
are arranged vertically along the height direction, and are pivotally supported on the side plates 46 and 48 similarly to the pair of conveyance rollers 68. Between these pair of conveyance rollers 80, a pair of conveyance rollers 6
The film 22 is fed downward from 8 and guided by a guide 64, then is inserted, reversed, and fed upward.

Further, above the guide 66, a pair of conveyance rollers 82 are arranged at the same height as the pair of conveyance rollers 68. The pair of conveyance rollers 82 have the same shape as the pair of conveyance rollers 68, and are similarly supported by the side plates 46, 48. The film 22 that has been reversed and sent upward by the pair of transport rollers 82 is delivered to the pair of transport rollers 82 .
is guided by a guide 66, inserted, and sent out from the rack.

Next, a drive system that transmits rotational drive to the pair of conveyance rollers 68, 80, and 82 will be explained.

As shown in FIG.
．． 84 are fixed, and these are interlocked. Similarly, gears 86 and 88 of the pair of conveyance rollers 80 are fixed to the conveyance roller support shaft 74 and mesh with each other. Furthermore, gears 90 and 92 are fixedly engaged with the pair of conveyance rollers 82 and the conveyance roller support shaft 74 in the same manner.

Further, as shown in FIG. 2, a drive shaft 94 is hung between the side plates 46 and 48, and is rotatably supported by the side plates 46 and 48. One side of this drive shaft 94 is connected to the side plate 4
8, and is connected to a driving means such as a motor (not shown) to transmit rotational driving force.

As shown in FIGS. 6 and 7, a drive gear 96 is provided at the tip of the drive shaft 94 that protrudes through the side plate 48.
is fixed. This drive gear 96 meshes with a gear 98 pivotally supported on the side plate 48, and furthermore, this gear 98
is a gear 10 having a larger diameter than the gear 98 pivotally supported on the side plate 48.
0 is engaged. This gear 100 includes a gear 78 fixed to a conveyance roller support shaft 74 and a pair of conveyance rollers 8.
It meshes with a gear 90 fixed to the support shaft 74 of No. 2. As a result, the rotational driving force transmitted to the drive shaft 94 is transmitted to the gear 96 and the gear 98, and via the gear 100,
A pair of conveying rollers 68 are transmitted to the gear 78 and the gear 90.
And a pair of conveyance rollers 82 are rotated.

Further, a gear 86 fixed to the transport roller support shaft 74 of the pair of transport rollers 80 meshes with the gear 100 .

As a result, the rotational driving force transmitted to the gear 100 is transmitted to the pair of conveyance rollers 80 and rotated.

As shown in FIG. 5, the gear 98 projects integrally from the side plate 48 and is pivotally supported on the shaft 104.

The tip of this shaft 104 is connected to the aforementioned transport roller support shaft 72.
．． It has the same shape as the tip of 74, and similarly has a claw portion 72D and a groove 74.
E is formed. Further, the side plate 48 is provided with a protrusion 48A, and a gear 98 is held between the protrusion 48A and the claw portion 72D. In this case, the tip of the protrusion 48A contacts and slides on the gear 98, but since the contact area is small, the sliding resistance generated between the tip of the protrusion 48A and the gear 98 is small.

The gear 100 has a similar structure and is pivotally supported by the side plate 48.

Next, the operation of this embodiment will be explained.

The film 22 inserted into the photographic film processing machine 10 from the insertion table 20 is sequentially transported and immersed by the transport rollers of the transport rack 24 arranged in the developer tank 14, fixing tank 16, and washing tank 18, respectively. The film is dried in the drying section 26 and taken out to the film stocker 27.

Here, a case will be described in which the inside of the transport rack 24 and the pair of transport rollers 68, 80, 82 are cleaned after the development process is completed, or the case where the pair of transport rollers 68, 80, 82 is replaced with another transport roller. .

The pair of transport rollers 68, 80, and 82 are removed from the transport rack 24 taken out from inside the developer tank 14.

Since the pair of conveyance rollers 68, 80, and 82 have the same structure, the removal method is also the same, and the case where the pair of conveyance rollers 68 is removed will be described.

First, the gear 78 fixed to the tip of the conveyance roller support shaft 74 is removed. At this time, the gear 78 is extracted by displacing the claw portion 74D in the direction of the shaft center. Next, with the claw portion 74D similarly displaced in the axial direction, the bearing 76
is moved in the axial direction and extracted from the side plate 48, the support portion 74C is extracted from the bearing 76, and the bearing 76,
is moved and pulled out from the conveyance roller support shaft 74 and from the bearing 76. As a result, the bearing 76 is removed from the side plate 48.

With one side of the bearing 76 removed from the side plate 48, the bearing 76 inserted into the side plate 46 is moved along the axial direction to the outside of the side plate 46, and the conveying roller support shaft is fixed in the same way as the conveying roller support shaft 74. Extract from 72. Next, with the conveyance roller 68 tilted, the conveyance roller 68 is moved in the axial direction and pulled out from the through hole 46A, and then tilted and moved in the opposite direction to move the conveyance roller support shaft 74 into the through hole 48.
Extract from A.

In this case, the diameters of the through holes 46A, 48A are larger than the diameters of the support portions of the transport roller support shafts 72, 74, so that the transport roller 68 can be tilted between the side plates 46, 48.

As a result, the conveyance roller 68 is removed from the side plate 46 and removed from the rack.

In addition, when attaching the conveyance roller 68 to the rank side plate 46.48, the conveyance roller support shaft 72 of the conveyance roller 68
．． 74 into the through holes 46A and 48A. This insertion is performed by tilting the conveying roller 68 and using the conveying roller support shaft 72.
After inserting into the through hole 46A, the conveying roller support shaft 74
This is done by inserting the into the through hole 48A. In this state, the tip of the conveyance roller support shaft 72 protrudes outward from the side plate 46 , and the tip of the conveyance roller support shaft 74 protrudes outward from the side plate 48 . From this state, the bearing 76 is inserted from the tip of the conveyance roller support shaft 72 into the through hole 46A of the side plate 46. In this case, the claw portion 72D of the conveyance roller support shaft 72 is displaced in the axial direction against the elastic force and inserted into the bearing 76. After passing through the bearing, it returns to its original shape due to elastic force, and the bearing 7
6 in the axial direction.

Further, the conveyance roller support shaft 74 also has a conveyance roller support shaft 72.
Similarly, the bearing 76 is inserted into the through hole 48A of the side plate 48.
inserted inside. In this case as well, the claw portion 74D of the conveyance roller support shaft 74 is displaced in the axial direction against the elastic force, and the bearing 74D is displaced in the axial direction against the elastic force.
6, it returns to its original shape due to elastic force.

Furthermore, the gear 78 is inserted from the tip of the conveyance roller support shaft.

At this time as well, by pressing the gear 78 after contacting the tip, the claw portion 74D is displaced in the fine direction, and after the gear 74 is inserted between the bearing 76 and the claw portion 74D, The claw portion 74D returns to its original shape, and the bearing 76 and the claw portion 74
A gear 78 is sandwiched between D and D. Thereby, the transport roller 68 is pivotally supported by the side plates 46, 48 and attached to the rack.

As described above, in this embodiment, the conveyance roller support shaft 72.7
By providing claws 72D, 74D and grooves 72E, 74E at the tips of the rollers 4 and displacing the claws 72D, 74D in a direction perpendicular to the axial direction (axial direction), the pair of conveyor rollers 68, 80 .82 can be attached to or removed from the rack side plate 46.48, so there is no need to insert a fixing ring or the like into the end of the conveyance roller support shaft 72.74. Make your work easier.

〔Effect of the invention〕

As described above, the present invention provides a photographic film having a rack side plate, a bearing attached to the rack side plate, and a conveyance roller supported by a conveyance roller support shaft on the rack side plate via the bearing. In the rack for a processing machine, the conveyance roller support shaft has one end fitted into one end of the conveyance roller, and another end of the conveyance roller support shaft having a bearing portion on the opposite side of the conveyance roller. It consists of a claw part that projects outward, and a support part that is pivotally supported by the bearing between the fitting part and the claw part, and the claw part restricts the movement of the conveyance roller in the axial direction. , the claw part is characterized by being able to be elastically displaced in a direction perpendicular to the axial direction by a notch in the axial diameter direction provided in the claw part, so that it is easy to attach and remove the conveyance roller from the rack side plate. This has the excellent effect of making it easier.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing an embodiment of a photographic film processing machine to which the present invention is applied, FIG. 2 is an exploded perspective view showing a transport rack, and FIG. 3 is a view showing the tip of a transport roller and a side plate. A perspective view, FIG. 4 is a sectional view showing the support shaft portion of the conveying roller to the side plate, FIG. 5 is a sectional view showing the gear supported on the side plate, and FIG.
This figure shows the drive system, and is a view taken from the direction of arrow P in FIG. 2, and FIG. 7 is a sectional view taken along the line ■-■ in FIG. 6. lO... Photographic film processing machine, 46.48... Rack side plate, 68.80.82... Pair of conveyance rollers, 72.74
... Conveyance roller support shaft, 76... Bearing, 72A, 74A... Insertion part, 72B, 74B... Stopper part, 72C, 74C... Support part, 72D, 74D... Claw part, 112.114...Insertion part. Figure 1 Figure 4 ``1 Figure 7

Claims (2)

[Claims] (1) A rack for a photographic film processing machine, comprising a rack side plate, a bearing attached to the rack side plate, and a conveyance roller supported by a conveyance roller support shaft on the rack side plate via the bearing. , the conveying roller support shaft has one end fitted into one end of the conveying roller, and the other end of the conveying roller supporting shaft having a claw portion protruding outward from a bearing portion on a side opposite to the conveying roller. and a support part supported by the bearing between the fitting part and the pawl part, the pawl part restricting movement of the conveyance roller in the axial direction, and the pawl part is provided on the pawl part. A rack for a photographic film processing machine, characterized in that the claw portion is elastically displaceable in a direction perpendicular to the axial direction by a notch in the axial diametrical direction. (2) The fitting section is comprised of an insertion section that is fitted into the hollow roller section, and a stopper section that fixes the roller section to the conveyance roller support shaft. 1) A rack for a photographic film processing machine as described in item 1).