JPH0614228Y2 - Rack structure for photosensitive material processor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a rack structure for a photosensitive material processing machine, which is used in a processing machine for developing a photosensitive material and conveys the photosensitive material in the processing machine.

[Background Art] In a developing machine, a transfer rack is arranged inside a processing tank such as a developing tank, and a photosensitive material such as a film is inserted into the processing tank and then taken out and sent to the next processing tank.

Generally, in this transportation rack structure, a plurality of rollers are axially supported between a pair of side plates, and a photosensitive material is sandwiched between these rollers to impart a transportation force. It is necessary to take out the transportation rack from the processing tank and wash it after using it for a predetermined time.

In the rack structure in which a large number of rollers are supported at the time of this cleaning, even the inner rollers cannot be reliably cleaned, and some or all of the rollers must be individually removed from the rack side plates, which complicates the work. In this transportation rack structure, the side roller rows are arranged on both sides of the central roller row, and the side roller rows are arranged between the central roller rows so that the roller axes are arranged in a zigzag shape when viewed from the roller axis direction. In the above-described transport rack structure, it is particularly difficult to clean the central roller row, and it is indispensable to remove the rollers from the transport rack side plate.

For the purpose of cleaning the rack for such a light-sensitive material processing machine, for example, one disclosed in JP-A-58-95738 is known. The photosensitive material processing machine disclosed therein has a roller row for conveying the photosensitive material in the vertical direction, but the roller row is composed of a plurality of divided blocks, and these are arranged when assembled in the processing machine. The blocks are designed to be stacked. Cleaning is performed by dividing the block, but this structure is not easy to assemble.

[Problems to be Solved by the Invention] In consideration of the above facts, the present invention is easy to clean even when a large number of rollers arranged in a staggered manner are pivotally supported, and the assembly after cleaning is performed. It is an object of the present invention to obtain a rack structure for a light-sensitive material processor that is easy to perform.

[Means and Actions for Solving the Problems] In the present invention, lateral roller rows are pivotally supported on both sides of a central roller row pivotally supported by a rack side plate, and the central roller and the lateral roller rows stagger the rollers. A rack structure for a photosensitive material processing machine, in which a transport path for transporting photosensitive materials arranged in a line is formed, wherein at least one of the rack side plate body that axially supports the central roller row and the lateral roller row is axially supported. An open rack side plate, a fixing means for removably fixing the open rack side plate to the rack side plate body, a drive chain stretched on the rack side plate body along the arrangement direction of the central roller row, and the lateral side. When the open rack side plate is fixed to the rack side plate body provided on the rollers of the roller row, the drive chain is engaged to transmit the driving force to the side roller row and the rack side plate of the open rack side plate is engaged. And a sprocket wheel which is disengaged from the drive chain when detached from the main body.

Therefore, in the present invention, the central roller row and the side roller row can be easily opened by removing the open rack side plate from the rack side plate body when cleaning the rollers. A sufficient cleaning work space can be secured for the central roller row surrounded by, and the cleaning work can be facilitated.

In this case, if a part of the open rack side plate is pivotally supported on the rack side plate body and the other part is removably fixed to the rack side plate body with a screw or a one-tatch fastener,
By removing the screw or the one-touch fastener, the open rack side plate is released from the rack side plate body around the shaft supporting portion, so that the operation becomes easy.

Furthermore, when the sprocket wheel is attached to the roller pivotally supported on the open rack side plate and the open rack side plate is fixed to the rack side plate body, this sprocket wheel is pressed against the drive chain that is hung on the rack side plate body and engaged. Therefore, the driving force can be easily transmitted to the side roller rows, and the driving force can be reliably transmitted.
Further, even when the open rack side plate is in the opened state, the rollers of the central roller row can be rotated by manually driving the drive chain, so that the cleaning of the central roller row becomes easier.

[Embodiment of the Invention] FIGS. 1 to 6 show a transport rack 10 to which the present invention is applied.
It is shown. As shown in FIG. 4, the transport rack 10 is provided with a pair of rack side plate bodies 12 and 14, which are fixed in parallel with each other by a plurality of stays 16 being spanned.

A central roller row 20 and a side roller row 24 are axially supported by the rack side plate bodies 12 and 14, respectively. That is, the central roller row 20 has nine rollers 20A to 20I, and the side roller row 24 has rollers 24A to 24I.
Up to 9 rollers, each of which is shown in FIG.
The rollers 4 are arranged in a zigzag arrangement when viewed from the axial direction. The respective rollers of the central roller row 20 and the side roller row 24 are not in close contact with each other, and a conveyance path for the photosensitive material (not shown) is formed vertically with a slight gap.

Each of the rollers of the central roller row 20 and the side roller row 24 has small diameter shafts 22, 26 protruding from both axial end portions.
Is rotatably supported by penetrating the rack side plate bodies 12, 14.

Below the center roller row 20, a folding roller 30 is axially supported by the rack side plate bodies 12 and 14 via small-diameter shafts 30A protruding from both axial ends thereof. Pressing rollers 32, 34, and 36 are arranged laterally and below the folding roller 30, and small-diameter shafts 32A, 34A, and 36, respectively.
It is pivotally supported to the rack side plate bodies 12 and 14 via A.

A ring 42 is rotatably supported by the small-diameter shafts 32A and 34A, and an endless tension coil spring 44 is stretched between these rings 42, whereby the pressing rollers 32, 3
4 generates an urging force by which the folding roller 30 is pressed. A ring 46 is pivotally supported on the pressing roller 36 similarly to the small-diameter shaft 36A, and the pressing roller 36 receives the urging force of a torsion coil spring 48 attached to the rack side plate body 12 so that the pressing roller 36 is turned over.
The urging force that pushes is generated.

Further, a guide plate or the like (not shown) is provided for appropriately folding back the photosensitive material along the outer periphery of the folding roller 30.

Each small diameter shaft 26 of the side roller row 24 is a rack side plate body 12
A sprocket foil 52 is fixed to a tip portion protruding from the sprocket wheel 52. An endless drive chain 54 is wound around the sprocket wheel 52. Rings 56 are respectively supported on the ends of the small-diameter shafts 22 of the rollers 20B to 20I of the central roller train 20 to press the endless drive chain 54 from the sprocket wheel 52 so as not to come off.

A part of the endless drive chain 54 is wrapped around a large-diameter sprocket wheel 58 fixed to the small-diameter shaft 30A and folded back, whereby the folding roller 30 is rotationally driven.

Further, as shown in FIG. 6, a gear 30B is fixed to the small diameter shaft 30A on the outside of the rack side plate 14, and the small diameter shaft 3
Gears 32B, 34 fixed to 2A, 34A, 36A
B and 36B are engaged with each other, and the rotational driving force is transmitted to the pressing rollers 32, 34 and 36, respectively.

A drive shaft 62 is pivotally supported on the rack side plate bodies 12 and 14 above the roller 24A. As shown in FIG. 3, a gear 64 is fixed to the tip of the drive shaft 62, and the drive shaft 62 is rotated in the direction of arrow A in FIG. 2 by receiving a driving force from a motor output shaft (not shown). A part of the endless drive chain 54 is wound around the sprocket wheel 66 fixed to the drive shaft 62 over a substantially half circumference and folded back, and the endless drive chain 54 similarly generates a driving force in the direction of arrow A. It is like this.

As shown in FIG. 2, the idle roller 6 is provided at a position substantially equidistant from the sprocket wheel 66 and the roller 20A.
8 is pivotally supported, and a part of the endless drive chain 54 after being wound around the sprocket wheel 66 is wound around. The roller 70A at the uppermost stage of the side roller row 70 arranged between the idle roller 68 and the roller 20A.
A sprocket wheel 74 is fixed to a small diameter shaft 72 of the endless drive chain 54 after being wound around the gear 64.
Is wound around about 1/3 of the circumference.

The side roller row 70 has nine rollers 70A to 70I as in the case of the central roller row 20 and the side roller row 24, and only the roller 70A is included in the rack side plate body 12, 1.
The rollers 70B to 70I are pivotally supported by the open rack side plates 76 and 78. These open rack side plates 76 and 78 are arranged in parallel with each other to support the small diameter shaft 72, and are arranged in the notches 12A and 14A formed on one side of the rack side plate bodies 12 and 14 to form side rollers. Row 7
0 is brought closer to the central roller row 20, and is arranged at a position symmetrical to the side roller row 24 via the central roller row 20.

As shown in FIG. 4, a substantially semicircular recess 82 is formed at one end of the open rack side plates 76, 78 in the longitudinal direction (lower end in the assembled state of FIG. 5), and the recess 82 is notched. The shaft support pins 84 fixed to the rack side plate bodies 12 and 14 can be housed in the lower portions of the portions 12A and 14A.
Further, a cut portion 86 is formed at the other end portion of the open rack side plates 76, 78 in the longitudinal direction. The bent portion 86 corresponds to the L-shaped bracket 88 fixed to the facing surfaces of the rack side plate bodies 12 and 14, and is bent by the screw 92.
6 is fastened to the L-shaped bracket 88 so that the open rack side plates 76, 78 are closed.
It is supposed to be fixed to. However, by removing the screw 92 from the L-shaped bracket 88, the open rack side plates 76 and 78 are opened in the direction of arrow B around the shaft support pin 84 and separated from the central roller row 20 as shown in FIG. Has become.

The open rack side plates 76, 78 are the rack side plate bodies 12, 14
The sprocket wheel 94 fixed to the small-diameter shaft 72 of the rollers 70B to 70H in the state shown in FIG. 1 is fixed to the sprocket wheel 94 and the large-diameter sprocket wheel 5 respectively.
A part of the endless drive chain 54 located between and is wound around. As a result, the endless drive chain 54 is moved to the arrow A
When driven in the direction, the side roller row 70 becomes the central roller row 2
A driving force for sending the photosensitive material between 0 and 0 toward the folding roller 30 is generated downward, and a driving force for sending the photosensitive material between the side roller row 24 and the central roller row 20 upward is generated. Is happening.

Also, as shown in FIG. 2, a large diameter sprocket wheel 58
Has a larger diameter than the other sprocket wheels, and as shown in FIG. 1, the endless drive chain 5 arranged substantially parallel between the sprocket foil 52 and the sprocket foil 94.
4 is smaller than the diameter of the large-diameter sprocket wheel 58, the large-diameter sprocket wheel 58 and sprocket wheel 58 are opened when the open rack side plates 76 and 78 are opened as shown in FIG. An endless drive chain 54 with respect to 74 is arranged linearly and separated from the ring 56.

As shown in FIG. 6, gears 98 are fixed to the small diameter shafts 22 of the central roller row 20 on the outside of the rack side plate body 14, respectively. Small diameter shaft 22 of rollers 20A and 20B
A gear 112 fixed to the small-diameter shaft 26 of the roller 24A meshes with the gear 98 fixed to. A gear 114 fixed to the small diameter shaft 26 of the roller 24C meshes with a gear 98 fixed to the small diameter shaft 22 of the roller 20C and the small diameter shaft 22 of the roller 20D. Also, the small diameter shaft 22 of the roller 20E
A gear 116 fixed to the small diameter shaft 26 of the roller 24E meshes with the gear 98 fixed to the small diameter shaft 22 of the roller 20F.

Further, the small diameter shaft 22 of the roller 20G and the gear 98 fixed to the small diameter shaft 22 of the roller 20H mesh with the gear 118 fixed to the small diameter shaft 26 of the roller 24G. A gear 120 fixed to the small diameter shaft 26 of the roller 24I meshes with a gear 98 fixed to the small diameter shaft 22 of the roller 20I at the bottom of the central roller row 20.

As a result, the rollers 20A to 20 of the central roller row 20 are
I rotates by receiving the driving force of the gears 112 to 120, and directs the photosensitive material between the side roller row 70 downward and the photosensitive material between the side roller row 24 upward. It is designed to generate a rotational force to drive.

As shown in FIG. 6, the gear 98 fixed to the small diameter shaft 22 of the roller 20I has a gear 12 on the side opposite to the gear 120.
2 meshes with the gear 122 and
Is fixed to the small diameter shaft 72 of the roller 70I at the lowest stage. Therefore, each of the rollers 70A to 7A of the side roller row 70 is
OH is directly driven by the endless drive chain 54 through the sprocket wheel 74 as shown in FIG. 1, while the roller 70I is driven by the gear 12 as shown in FIG.
The rotary driving force is received via 0, 98 and 122. This allows the roller 70I shown in FIG.
Unlike the case of the rollers 70A to 70H, the sprocket wheel 94 is not attached and the ring 124 is attached to contact the intermediate portion of the endless drive chain 54 as shown in FIG.

As shown in FIGS. 3 to 5, a roller 132 is fixed to the drive shaft 62 at an intermediate portion thereof. The roller 132 contacts the roller 134 and pushes up the photosensitive material from between the central roller row 20 and the side roller row 24. It is sandwiched and sent to the next process. Therefore, in the roller 134, the small diameter shaft 134A is pivotally supported by the rack side plate bodies 12 and 14, and the gear 136 fixed to the drive shaft 62 meshes with the gear 138 fixed to the roller 134. Further, the spindle 1 is attached to the roller 134.
42 has a roller 143 supported by a shaft, and a gear 144 fixed to the support shaft 142 meshes with a gear 138. Rings 146, 148, and 150 are pivotally supported by the drive shaft 62, the small diameter shaft 134A, and the support shaft 142, and the endless tension coil spring 152 is stretched over these to force the roller 134 to approach the roller 132. Is to occur.

Next, the operation of this embodiment will be described.

The transport rack 10 is inserted into a processing tank such as a development processing tank in the assembled state shown in FIGS.

When the photosensitive material is conveyed, the drive shaft 62 rotates by receiving a driving force of a motor or the like (not shown) via the gear 64, so that the endless drive chain 54 rotates in the direction of arrow A as shown in FIG.

Therefore, the fed photosensitive material is fed downward between the central roller row 20 and the side roller row 70 while partially contacting the respective rollers of the central roller row 20 and the side roller row 70. Further, the photosensitive material is a folding roller 30.
Inverted along the outer periphery of the roller and turned upward, the center roller row 2
A driving force is received between the rollers of the 0 and side roller rows 24, and the rollers are lifted upward and passed between the rollers 132 and 134 to be sent to the next step. When the photosensitive material passes between the rollers, a processing solution such as a developing solution is sufficiently supplied to the photosensitive material between the rollers to perform processing such as development processing.

When the transport rack 10 is taken out from the processing tank and washed, the screw 92 is removed. As a result, as shown in FIG. 2, the open rack side plates 76 and 78 rotate in the direction of the arrow B and are largely separated from the central roller row 20. Therefore, the rollers 70A to 70I as well as the rollers 20A to 20I can be easily washed. In this case, if the endless drive chain 54 or the drive shaft 62 is manually rotated, the rollers 20A to 20I are also rotated.
It is possible to reliably clean the outer circumference of each roller of 20 I over the entire circumference.

After the cleaning work is completed, the open rack side plates 76 and 78 are rotated in the direction opposite to the arrow B direction in FIG. 2 and the screw 92 is tightened into the L-shaped bracket 88, and the assembled state is again obtained as shown in FIG. . In this assembled state, the sprocket wheel 74 automatically engages with the endless drive chain 54, so that no special connection of drive means is required.

Although the screw 92 is used as a means for fixing the open rack side plate to the rack side plate body in the above-mentioned embodiment, it is temporarily elastically deformed when the enlarged tip portion penetrates the open rack side plate and the rack side plate body. Alternatively, it may be a detachable fixing means such as a synthetic resin integrated one-touch fastener that expands its diameter after penetration to prevent it from coming off.

[Advantages of the Invention] As described above, according to the present invention, the pair of side rollers pivotally supported by the side plate of the open rack can be integrally removed to bring the pair of central rollers into the open state, so that cleaning of each roller is easy. Becomes Further, when the open rack side plate is attached to the rack side plate body, the sprocket wheel of the open rack side plate engages with the drive chain, so that the open rack side plate can be easily attached.

[Brief description of drawings]

FIG. 1 is a side view corresponding to a left side view of FIG. 3 of a carrying rack to which the present invention is applied, FIG. 2 is an operation view showing a state where the open rack side plate of FIG. 1 is opened, and FIG. FIG. 4 is a front view of the carrying rack, FIG. 4 is an exploded perspective view of the carrying rack, FIG. 5 is a sectional view taken along line VV of FIG. 3, and FIG. 6 is a right side view of FIG. 10 ... Conveyance rack, 12, 14 ... Rack side plate body, 20 ... Central roller row, 24 ... Side roller row, 54 ... Endless drive chain, 70 ... Side roller row, 76, 78 ... Open rack side plate, 82 ... Recess, 84 ... Shaft support pin, 92 ... Screw, 94 ... Sprocket wheel.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP 62-157034 (JP, A) JP 50-3339 (JP, A) JP 48-21467 (JP, B1) JP 39- 37373 (JP, Y1)

Claims (2)

[Scope of utility model registration request] 1. A photosensitive material in which rollers are arranged in a zigzag pattern by means of the central roller row and the lateral roller rows, wherein lateral roller rows are axially supported on both sides of a central roller row axially supported by a rack side plate. A rack structure for a photosensitive material processor in which a transport path is formed, wherein a rack side plate body that axially supports the central roller row, an open rack side plate that axially supports at least one of the side roller rows, and the open rack. A fixing means for detachably fixing the side plate to the rack side plate body, a drive chain stretched on the rack side plate body along the arrangement direction of the central roller row, and the rack provided on the rollers of the side roller row. When the open rack side plate is fixed to the side plate body, the drive chain is engaged to transmit the driving force to the side roller row, and the open rack side plate is detached from the rack side plate body to drive the drive chain. Rack-and-pinion structure for a photosensitive material processing machine, characterized in that it comprises a sprocket bract foil engagement with the down is released, the. 2. The rack structure for a photosensitive material processing machine according to claim 1, wherein the fixing means is at least one of a screw and a one-touch fastener.