JPH0540518Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is a guide width adjustment device that adjusts the guide width of a pair of movable guides that guide the movement of both side edges of a photographic material to correspond to the width dimension of the photographic material. It is related to.

[Conventional technology]

Generally, in a developing device that processes photographic light-sensitive materials after printing and exposure, as shown in FIGS. 5 and 6, a plurality of processing tanks (not shown) are installed in a main body case 1 that has a cover 2 that can be opened and closed at the top. established,
A transport rack A is detachably provided in each processing tank, and the photographic material is transported in the transport rack A, and the photographic material is sequentially immersed in the processing solution of each processing tank for development. The photographic light-sensitive material is led to a drying section and subjected to drying processing. A transport rack A is also provided in the drying section to guide the movement of the photographic material.

Here, the conveyance rack A is constructed by connecting a pair of opposing side plates 3 with a plurality of cross members 4 and horizontal bars 4', and rollers (not shown) are provided between the side plates 3. Further, a threaded rod 5 is rotatably provided at the upper and lower center of the side plate 3, and reverse threads 6 formed at both ends of the threaded rod 5 are threadedly engaged with a pair of movable guides 7 provided between the side plates 3. ing.

The movable guide 7 has a pair of rail members 7a extending in the vertical direction connected by a connecting plate 9, and a nut 1 threadedly engaged with the reverse thread 6 of the threaded rod 5 on the connecting plate 9.
0 is attached.

Furthermore, an adjustment shaft 12 extending vertically is rotatably provided on one side of the transport rack A.
A knob 11 is attached to the upper end of 2, and the adjustment shaft 12 is rotated by operating the knob 11, and the rotation is transmitted to each threaded rod 5 via a transmission means 13 such as a bevel gear, so that the pair of movable guides 7 are symmetrically moved. The guide width is adjusted by moving it.

The photographic material A is guided at both sides by a pair of movable guides 7, and at the center in the width direction by a horizontal member 4.
It is designed to move while being guided by a fixed guide 8 supported by.

[The problem that the idea attempts to solve]

By the way, in the development processing apparatus, when the width dimension of the photosensitive material 14 changes, the adjustment shaft 12 is rotated to adjust the guide width (gap) of the pair of movable guides 7 provided in the transport rack A to the width of the photosensitive material 14. 14
However, in the past, when adjusting the guide width, it was done for each conveyance rack A, so the adjustment was very time-consuming.

In order to eliminate this inconvenience, the
In the automatic photographic paper developing machine described in Japanese Patent No. 176552, a pair of width guide plates provided inside each of a plurality of racks are moved simultaneously by a single motor.

By the way, in the automatic photographic paper developing machine described in the above publication, a chain is moved by driving a motor to rotate a sprocket, and the rotation of the sprocket is transmitted to a main shaft having a reverse thread through a chain/sprocket mechanism. , the guide width is adjusted by moving a pair of width guide plates symmetrically by rotating the main shaft, so when trying to remove the rack from the automatic processor, the chain and sprocket mechanism gets in the way, making it difficult to attach and remove the rack. The problem is that it is extremely difficult to clean the rack and that it takes time and effort to clean and maintain the rack.

The technical problem of this invention is to make it easy to adjust the guide width and to make it easy to attach and detach the transport rack.

[Means to solve the problem]

In order to solve the above problems, in this invention, a pair of movable guides for guiding both side edges of the photosensitive material is provided inside each of a plurality of transport racks for transporting the photosensitive material, and the pair of movable guides Reverse threads formed at both ends of the threaded rod are engaged with each other to rotatably support an adjustment shaft extending vertically provided on one side of each transport rack, and the rotation of the adjustment shaft is transmitted to the threaded rod. In the guide width adjustment device, a knob is fixed to one of the adjustment shafts, a pinion is fixed to each adjustment shaft, and a rack presser is fixed to the pinion, A width changing shaft extending in the direction in which the transport racks are arranged is disposed on one side of the group of transport racks and supported so as to be movable and rotatable in the axial direction, and fixed to each of the adjustment shafts is fixed to the width changing shaft. A plurality of racks that mesh with the pinion are fixed, and each rack is provided with a protrusion that faces the widthwise groove formed on the outer periphery of each rack holder, only under the condition that the distance between the pair of movable guides in each transport rack is equal. , this protrusion is made large enough to be inserted into the groove.

[Effect]

With the above configuration, when the adjusting shaft having the knob is rotated, the width changing shaft moves in the axial direction due to the engagement of the pinion and the rack. As the width changing shaft moves, the remaining adjustment shafts simultaneously rotate due to the engagement of other racks and other pinions, and the rotation of each adjustment shaft also rotates the threaded rod. Therefore, the widths of the pair of movable guides in each transport rack can be adjusted simultaneously and equally.

In addition, by moving the width changing shaft in the axial direction, the protrusion of the rack faces the groove of the rack presser, and by rotating the width changing shaft, the protrusion passes through the groove and the rack presser is released. It can be attached and detached above the rack.

〔Example〕

Embodiments of this invention will be described below with reference to FIGS. 1 to 4.

Note that the same parts as in FIGS. 5 and 6 described above are designated by the same reference numerals and their explanations will be omitted.

As shown in the figure, a plurality of transport racks A are arranged in one direction at required intervals. A pinion 15 is mounted on the upper part of the adjustment shaft 12 provided on one side of each transport rack A, and a disc-shaped rack presser 1 is mounted above the pinion 15.
6 is attached.

A width changing shaft 17 extending in the direction in which the transport rack A is disposed is provided at the upper part of one side of the transport rack A. This width changing shaft 17 is supported by a bearing 19 fixed within the main body case 1 so as to be movable in the axial direction and rotatable.

A plurality of racks 18 are attached to the width changing shaft 17 and mesh with the pinions 15 attached to each adjusting shaft 12. The rack 18 has a protrusion 2 that is slidably inserted between the pinion 15 and the rack holder 16.
0, and a protrusion 21 is provided at a required distance from the end face of the protrusion 20.

The projection 21 is sized so that it can be inserted into a groove 22 formed on the outer periphery of the rack retainer 16. At the position where the projection 21 and the groove 22 face each other,
The intervals between the pairs of movable guides 7 of each transport rack A are all the same.

A knob 24 is attached to the upper part of one of the adjustment shafts 12, and the knob 24 passes through a center hole 25 of a ring 26 attached to the cover 2 and projects onto the cover 2. A seat plate 27 is provided below the knob 24, and the adjustment shaft 12 rotatably passes through the seat plate 27.

The seat plate 27 is prevented from rotating relative to the ring 26,
The center hole 25 of the ring 26 is closed. This seat plate 27 is provided with a setting width scale 30 indicated by an indicator 29 provided on the knob 24.

Now, when the adjustment shaft 12 is rotated by operating the knob 24, the pinion 15 integrated with the adjustment shaft 12 rotates.
The width changing shaft 17 moves in the axial direction due to the engagement with the rack 18, and the other rack 1 integrated therewith moves in the axial direction.
8 also moves, and the other pinion 15 that meshes with it also rotates.

Therefore, each adjustment shaft 12 rotates at the same time, and each threaded rod 15 interlocked therewith also rotates at the same time, so that the pair of movable guides 7 provided in each transport rack A
moves symmetrically.

Therefore, by aligning the indicator 29 of the knob 24 with the desired set width scale 30 on the seat plate 27, the guide width of the pair of movable guides 7 of each transport rack A can be adjusted to the set width.

When cleaning or maintaining the transport rack A incorporated in the main body case 1, the adjusting shaft 12 integrated therewith is rotated by operating the knob 24, and the width changing shaft 17 is slid in the axial direction, as shown in FIG. As shown, press the protrusion 21 provided on the rack 18 into the rack presser 1.
6 and facing the groove 22 formed in the groove 6. At this time, the projections 21 of the other racks 18 also face the grooves 22 of the other rack holders 16, and in this opposed state, the racks 1
When the width changing shaft 17 is rotated in the direction in which the rack 8 moves upward, each protrusion 21 passes through the groove 22, and the rack 1
8 presser is released.

By releasing the hold on the rack 18, the necessary transport rack A is taken out onto the main body case 1 for cleaning or other work.

When cleaning or maintaining the transport rack A, there is a risk that the adjustment shaft 12 may be rotated. When the adjustment shaft 12 is rotated, the guide width of the pair of movable guides 7 is changed, and the angle of the groove 22 of the rack presser 16 is also changed.

If the transport rack A is inserted into the main body case 1 without knowing that the guide width has been changed and the width changing shaft 19 is rotated in the opposite direction, the angle of the groove 22 of the rack presser foot 16 will change to the other direction. Groove 2 of rack presser foot 16
2, the protrusion 22 of the rack 18 is supported by the rack presser 16 and does not pass through the groove 21, making it impossible to return the width changing shaft 17 to its original state.

In this case, the rack presser 1 has grooves 22 at different angles.
6 to adjust the angle of the groove 22 with another rack presser 16.
When the width changing shaft 17 is aligned with the groove 22 of
is rotated so that the protrusion 22 of each rack 18 passes through the groove 22 of the rack holder 16.

Here, when the protrusion 21 of each rack 20 faces the groove 22 of each guide holder 16, the guide widths of the pair of movable guides 7 of each transport rack A are set in advance so that they all match. By passing the protrusion 21 through the groove 22 of the presser foot 16, the guide widths of all the pairs of movable guides 7 are made the same.

[Effect of idea]

As described above, in the guide width adjusting device according to this invention, by rotating one knob, all the adjustment shafts and threaded rods are simultaneously rotated by the same amount, and the pair of movable guides in each transport rack is rotated. Since the guide width is adjusted uniformly, it is easy to adjust the guide width by changing the photosensitive material.

In addition, by arranging the protrusion of the rack to face the groove of the rack presser, the width changing shaft can be rotated in the direction in which the rack is released by the rack presser, making it easy to transport the rack from the main case. It can be taken out, and cleaning and maintenance of the transport rack is also easy.

Furthermore, even if the guide width of the pair of movable guides is changed due to cleaning or maintenance of the transport rack, the rack retainer can be rotated to align the groove with the protrusion of the rack after inserting the transport rack into the main body case. , it is possible to match the guide width of a pair of movable guides of other transport racks, so it is easy to match the guide width of a pair of movable guides whose guide width has been changed to the guide width of another pair of movable guides. It is.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view showing an embodiment of this invention, Fig. 2 is a partially cutaway perspective view of the main parts of the same, and Fig. 3 is a partially cutaway front view showing an embodiment of the invention.
4 is an enlarged partially longitudinal plan view showing various states of the rack and pinion mechanism, FIG. 5 is a partially longitudinal front view of the conventional device, and FIG. 6 is a transverse plan view of the same. 1... Main body case, 5... Threaded rod, 6... Reverse thread, 7... Movable guide, 12... Adjustment shaft, 15...
...Pinion, 16...Rack presser, 17...Width changing shaft, 18...Rack, 21...Protrusion, 22...
Groove, 24...knob.

Claims (1)

[Scope of utility model registration request] A pair of movable guides for guiding both side edges of the photosensitive material is provided inside each of a plurality of transport racks for conveying the photosensitive material, and reverse threads formed at both ends of the threaded rod are screwed into the pair of movable guides. A vertically extending adjustment shaft provided on one side of each transport rack is rotatably supported, and the rotation of the adjustment shaft is transmitted to the threaded rod to move the pair of movable guides symmetrically. In the guide width adjusting device, a knob is fixed to one of the adjustment shafts, a pinion is fixed to each adjustment shaft and a rack presser is fixed to the pinion, and a transport rack is arranged on one side of the transport rack group. A width changing shaft extending in the direction is disposed and supported so as to be movable and rotatable in the axial direction, and a plurality of racks that mesh with pinions fixed to each of the adjustment shafts are fixed to the width changing shaft. is provided with a protrusion that faces the axial groove formed on the outer periphery of each rack holder and has a size that allows the protrusion to be inserted into the groove only under the condition that the distance between the pair of movable guides in each transport rack is equal. A guide width adjustment device characterized by: