JPH0138590Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is particularly applicable to a long photographic light-sensitive material that is incorporated into a processing apparatus for developing a long photographic light-sensitive material or for processing a long photographic light-sensitive material after the development process. Concerning a conveying device, the distance between a pair of left and right guide guide pieces for guiding both side edges of the photographic light-sensitive material can be adjusted by a simple means, especially when conveying elongated photographic light-sensitive materials of different sizes. It is.

[Prior art]

Conventionally, this type of conveying device for long photosensitive materials has been used in automatic developing devices for long photographic paper (hereinafter simply referred to as photographic paper) that incorporate a conveying device. In order to avoid the inefficiency and waste of having to create a dedicated machine for each width of photographic paper, that is, the size of photographic paper, we have developed racks for each size of photographic paper. Each time the size of the photographic paper to be developed differs, the rack equipped with a conveying device suitable for the size of the photographic paper is replaced.

In addition, a device in which the guide width can be changed so as to be able to process photographic paper of different sizes is shown in Utility Application No. 59-89412 (Utility Model Application No. 61-6847) previously filed by the present applicant. The plurality of spacing adjusting pieces interposed between the side plate and the V-shaped guide piece mounting member are moved inward and outward on each screw shaft with the side plate as a boundary. However, this was inefficient because it required lifting the rack out of the processing solution to make the above adjustment.

[The problem that the invention attempts to solve]

The present invention solves the above-mentioned difficulties and drawbacks of the conventional technology, and even when the size of photographic paper changes, the rack remains loaded in the liquid without having to be lifted from the processing tank. It is an object of the present invention to provide a photographic paper conveying device that allows the guide width to be changed, has a simple mechanism, and has excellent operability.

[Means for solving problems]

The present invention has been devised to achieve the above-mentioned object, and has a screw shaft with a right-hand thread on one side and a left-hand thread on the other from the center, and a guide piece mounting member is attached to each threaded portion of the screw shaft. A fixed adjusting sliding nut is screwed together, and the pair of adjusting sliding nuts are moved in opposite directions by rotation of the screw shaft, and are attached to the guide guide piece mounting member. In a conveying device for a long photographic material that adjusts the interval between a pair of left and right guide guide pieces that guide both side edges of the photographic photosensitive material, a long rack is movably extended from the starting end of the conveying device to the bottom. An adjustment knob equipped with a gear that meshes with the elongated rack is rotatably attached to a side plate on the starting end side of the conveying device, and by rotating the adjustment knob, the elongated rack can be moved upwardly or downwardly. and transmits this movement to a pinion fixed to the screw shaft to rotate the pinion to rotate the screw shaft to adjust the interval between the pair of left and right guide pieces. It is.

[Effect]

The conveying device for photographic paper according to the present invention, when adjusting the interval between the pair of left and right guide pieces that fit and guide both side edges of the photographic paper to be conveyed, A long rack is movably extended, and an adjustment knob rotatably attached to the starting end of the conveying device is provided with a gear that meshes with the long rack, and the rotation of the adjustment knob is controlled by the gear. This movement is transmitted to the long rack to move the long rack upward or downward, and this movement is transmitted from the center to a pinion fixed to a screw shaft with a right-hand thread on one side and a left-hand thread on the other to turn the screw shaft. Rotate the adjustment sliding nut to which the guide piece mounting member screwed to the right-hand thread and the left-hand thread of the screw shaft are attached, so that the adjustment sliding nut approaches or moves away from each other in opposite directions. By moving it, the distance between the pair of guide pieces is adjusted.

〔Example〕

The following describes how the conveying device for long photographic material (photographic paper) of the present invention can be easily used in an automatic developing device that performs printing exposure, that is, developing processing on photographic paper printed by a so-called printer. An example will be explained.

In the figure, R is a rack, and P is a long photographic paper of several different sizes conveyed by the rack R inserted into each processing tank of an automatic developing device (not shown). It is a general term for
In the rack R, 1 is a long photosensitive material of different sizes, that is, the width of the photographic paper that is the widest among several types of photographic paper P of different sizes to be conveyed by this rack R. One of the side plates of substantially the same shape and the same size facing each other with a slightly wider interval, said side plate 1
The upper part and the lower part have one or more wide parts 1a, 1b, ... 1d between the upper part and the lower part, and narrow substantially same-shaped side edges that connect the wide parts 1a, 1b, ... 1d. It consists of rack plate portions 2a, 2b, . . . 2d bent in a direction. And these wide parts 1a, 1b,...1
d and the rack plate portions 2a, 2b, . The side plates facing each other at the above-mentioned interval are maintained at that interval by a group of rollers used for conveying and unloading the photographic paper, and these roller groups are provided on the other side plate mentioned above. driving gear,
It is rotated by a transmission chain,
One of the illustrated side plates includes a large-diameter drive gear 3 provided coaxially with the drive gear described above.
A small-diameter driven gear 4 that meshes with and rotates at the upper part of the gear, and a small-diameter gear 5 ₁ that is rotated by the gear 4.
5 ₂ , 6 ₁ , 6 ₂ , and small-diameter gears 7 a and 7 b which mesh with and rotate with the drive gear 3 are provided on the lateral side of the drive gear 3 . Pressing rollers (not shown) are fixed to the shafts of the small-diameter gears 5 ₁ , 5 ₂ and 6 ₁ , 6 ₂ , and the photographic paper P is carried in and out by means of these pressure rollers.
Also, a roller (not shown) fixed to the shaft of the drive gear 3 and a gear 7a that rotates while meshing with the gear 3.
Pressing rollers (not shown) fixed to the shafts of and 7b constitute a group of photographic paper conveying rollers A. Then, at intervals shorter than the length of the photographic paper P, which is the shortest length of the photographic paper P, a large-diameter driving gear ₃₁ and a small-diameter gear 7a' meshing with the large-diameter driving gear 31, which have the same configuration as the gear train described above, and a small-diameter gear 7a' are arranged. A transport group B is constituted by a large diameter roller and small diameter left and right rollers (not shown) fixed to respective shafts of the roller 7b'.
Further, on the lowest wide portion 1d of the side plate 1, a large-diameter drive gear ₃₂ similar to the gear train described above and small-diameter gears 7a'' and 7b'' meshing therewith are fixed to respective shafts. A conveyance group C is constituted by a large diameter roller and small diameter left and right pressure rollers (not shown), and also includes a small diameter gear 8 fixed with a conveyance direction conversion roller (not shown) that meshes with the large diameter gear ₃₂ , Together with the above-mentioned rollers, it constitutes a conveyance direction changing roller group D. and a group of carrying rollers provided between the opposing side plates as described above and rotated by the respective gears;
The photographic paper P is carried in, conveyed, conveyed direction changed, and conveyed out by the conveying roller groups A, B, . . . , the conveying direction changing roller group D, and the carrying-out roller group. The drive by these gears, the above-mentioned conveyance by the group of rollers, etc. are well known in the past, and therefore will not be explained in detail.

Reference numerals 9 and 9' designate elongated arc-shaped guide pieces arranged and fixed between the conveying roller groups A, B, . . . and the conveying direction changing roller group D. These guide pieces 9 are used to contact and guide the base side of the photographic paper by pushing it slightly between the roller groups when the photographic paper is conveyed through the roller group to the conveyance roller group. 9' are the rack plate parts 2a, 2a', of the side plate 1;
. . . Each of the rectangular guide piece fixing members 10, 10' fixed with screws etc. has a bent part 11 which is recessed and bent inward on the opposing side.
It is supported at the apex of 11' (see Figure 2). Also, 12, 12 and 12', 12' are
As shown in FIG. 2, the conveying roller group A
and the roller group D for changing the conveyance direction, each of which has a V-shaped guide piece 12, 12, and 12' facing each other in a manner that allows the distance between them to be changed. , 12' are the roller groups A and D for transporting the photographic paper P carried in from the carrying roller group.
These V-shaped guide pieces 12, 12, 12', 1 are for inserting and guiding both side edges of the photographic paper P between the roller groups D and A.
2' is each shape bending 2 of the rack plate part of the side plate 1.
a, 2a', . . ., the open leg parts 14, 14, 1 of the larger V-shaped guide piece mounting members 13, 13' for guides.
4', 14', and approximately at the center of the V-shaped guide piece mounting members 13, 13' is a cylindrical portion 15 ₁ of an adjustment sliding nut 15, 15', which will be described later. , 15 ₁ ' are inserted into the holes 13, 13 ₁ '. And adjustment sliding nut 15,1
5' is the center opening 13 ₁ , 13 of the V-shaped guide piece mounting member 13 , 13 _′ for guiding the cylindrical portion 15 ₁ , 15 1 ′.
₁ ', and slide the nut holding plate 1 from the rear.
6, 16', and by attaching the holding plates 16, 16' to the guide V-shaped guide piece mounting members 13, 13' with screws, etc., the adjustment sliding nuts 15, 15' and the guide V-shaped guide piece mounting members 13, 13' are integrally formed.

Further, 17 is the rack plate portion 2 of the side plate 1.
a, 2a', and the screw shaft 17 has a right-handed thread 17' on one side from its center,
A sliding nut 15 for adjustment has a left-hand thread 17'' carved on the other side, and the V-shaped guide piece mounting members 13, 13' are attached to the respective right-hand thread 17' and left-hand thread 17''. , 15' are screwed together, and by rotation of the screw shaft 17, the sliding nuts 15, 1
5' is a so-called turnback-like mechanism that moves toward or away from each other.

Reference numeral 18 denotes a long rack extending downward from the starting end side of the conveying device along the conveying direction, and screws 19, 19 are attached to the rack plate portions 2a, 2b, .
The elongated rack mounting member 20 fixed with the wide part 1a of the side plate 1, the rack plate parts 2a, 2b, etc.
It is installed and guided so as to be movable upward or downward by long rack guides 21, 21', 21'', etc., which are attached and fixed to ... with screws 19, 19, etc.. members 20, 20',
... are usually provided at two locations on the upper side of the rack plate and at two locations on the lower side (one location for each is not shown). 22, 22, . . . are pinions that mesh with the long rack, and the pinions 22, 2
2, . . . are connected to the screw shaft 17 described above, and the screw shaft 17 is rotated by the movement of the elongated rack 18.

Reference numeral 23 denotes an adjustment knob that is rotatably attached to the starting end side of the conveyance device, and the adjustment knob 23 has a long rack that engages with the long rack 18 and that rotates as the adjustment knob 23 rotates. A gear 24 is provided for moving the rack 18 upward or downward, and positioning notches 25, 25', 25'' are provided in the peripheral wall. 26 is rotatably attached to the side plate 1. This is a positioning roller that is rotatably attached to the tip of the positioning arm 27, and is attached to one of the notches 25, 25', and 25'' recessed in the peripheral wall of the adjustment knob 23 under the bias of the spring 28. 29 is a guide pin of the elongated rack 18 attached to the upper part of the side plate.

Note that, as shown in FIG. 1, the elongated rack 18 in this embodiment is made of a relatively flexible material since it is provided with a slight bend due to the relationship with the adjustment knob 23 when it is attached to the starting end side of the conveying device. In addition, it is preferable to use a chemical-resistant and abrasion-resistant material, such as a polyacetal resin or a polyamide resin, and a direction changing part is provided at the bottom of the long rack 18, and further, Gear 2 provided on the adjustment knob 23 provided on the conveyance start end side
It is also possible to make the elongated rack 18 endless by making the rack 4 also serve as a direction changing member on the upper side.

Since the embodiment of the present invention is constructed as described above, roller groups for carrying in, conveying, and changing the conveying direction are provided between both side plates of approximately the same shape and size, and the photographic paper P to be processed is The V-shaped guide pieces 12 and 12,1 are arranged to fit the width or size of the guide.
2' and 12' by rotating the adjustment knob 23 rotatably attached to the starting end side of the transport device of Rack R.
This rotation is transmitted to a gear 24 provided integrally with the adjustment knob 23, and the rotation of this gear 24 moves the elongated rack 18 that meshes with it upward or downward, and this movement is transmitted to the pinion 22. The V-shaped guiding member is screwed into the right-hand thread 17' and the left-hand thread 17'' of the threaded shaft 17, respectively, by transmitting the rotational motion and simultaneously rotating the threaded shaft 17 connected thereto. Mounting members 13, 13'
A V-shaped guide part for a guide is attached to the V-shaped guide part mounting member 13, 13' by moving the adjusting sliding nuts 15, 15', to which the adjusting nuts 15, 15' are attached, in a direction toward or away from each other. Pieces 12 and 12, 12' and 1
This is to adjust the interval 2'.

When moving the long rack 18 described above, the long rack 18 is moved by the long rack guides 21, 21',
21'', . . ., even if the elongated rack 18 is long and soft, it can be moved smoothly without meandering at all. Further, positioning notches 25, 2 are provided on the peripheral wall of the adjustment knob 23.
5', 25'', in advance, several types of photographic paper P of different sizes are inserted and guided by the V-shaped guide pieces 12 and 12, 12' and 12'. The rotation range of the screw shaft 17, that is, the long rack 18, to obtain the spacing between the V-shaped guide pieces 12 and 12, 12' and 12' according to their respective sizes.
, and determine the rotation range of the adjustment knob 23 for moving by that distance, and place the positioning notches 25, 25', and
25", ... can be recessed to easily obtain the above-mentioned required spacing.Also, if the width change size at this time is displayed on the surface of the knob, changing the size will be even easier. Then, in order to adjust the above-mentioned interval by rotating the adjustment knob within one rotation, the screw shaft 1
It is desirable that the right-hand thread and left-hand thread carved in 7 be multi-thread threads.

The racks installed as described above are installed in each processing solution of the automatic developing device from which the processing solution is blown out from the processing solution jetting nozzle 30, and there is an upper part for carrying in or carrying out between each rack R. This is used with a turn guard interposed, and when used, a group of loading rollers, a group of conveying rollers A, B, a group of rollers for changing the conveying direction, etc. are introduced from the starting end side of the conveying device of each rack R. D, and then reversely passes through each transport roller group...B and A to reach the transport roller group, and is sent to the rack R installed in the next processing liquid tank via the upper turn guide. However, the base surface side of the photographic paper P that is conveyed between the conveyance roller groups A, B... and between the lowest conveyance roller group and the conveyance direction changing roller group D is Elongated guide pieces 9, 9' that protrude from the surface side, make the photographic paper P arc-shaped, and increase its stiffness.
V-shaped guide portions for each guide are arranged on both sides between the conveying roller group A and the conveying direction changing roller group D to prevent damage to the emulsion surface. It will be guided by the pieces 12 and 12, 12' and 12'.

Guide V for inserting and guiding both side edges of photographic paper P
The shape guide pieces 12, 12, 12'12' rotate the adjustment knob 23 and rotate the gear 24 of the adjustment knob 23.
The long rack 18 is moved upwardly or downwardly by the pinion 22, and the right-hand screw 17'
and a screw shaft 17 with a left-hand thread 17″ carved on the other side.
A V-shaped guide piece mounting member 1 for a guide is rotated and screwed into the right-hand thread 17' and left-hand thread 17''.
Adjustment sliding nut 1 with 3, 13' attached
The guide V-shaped guide pieces 12 and 12 are fixed to the guide V-shaped guide piece mounting members 13 and 13' by performing a so-called turnbuckle-like movement in which the guide V-shaped guide pieces 5 and 15' are moved in opposite directions. and 12' and 1
In particular, since the above-mentioned adjustment knob 23 is located at the starting end of the transport device of the rack, the prints to be processed can be adjusted like the conventional racks of this kind. This eliminates the uneconomical need to select and convert racks for each different size of paper.Furthermore, even if the above-mentioned interval can be adjusted, there is no need to lift racks from the processing tank. In the case of
The spacing can be sufficiently adjusted simply by rotating the adjustment knob 23 located above the processing liquid.

[Effect of idea]

As is clear from the above explanation, the conveying device for a long photographic material according to the present invention can be adjusted even when the size changes when conveying several kinds of long photographic materials of different sizes. This can be done by rotating an adjustment knob provided on the starting end side of the rack transport device.The adjustment described above can be made by rotating the adjustment knob, and a gear integrated with this adjusts the length of the long rack. This movement is used to rotate the screw shaft via a pinion, and the necessary spacing between the V-shaped guide pieces can be adjusted in a turnbuckle-like manner by the rotation of the screw shaft that is transmitted with the movement of the long rack. The adjustment is made by changing it with a mechanism, and there is no need to lift the rack from the processing liquid tank during the adjustment.

[Brief explanation of drawings]

The drawings show an embodiment of the long photosensitive material conveying apparatus of the present invention, in which FIG. A schematic diagram illustrating the structure of the main parts as viewed in the direction of the arrow across the line X-X in the figure. Figure 3 is a diagram showing the structure of the V-shaped guide piece mounting member for attaching the adjustment sliding nut to one of the guide V-shaped guide piece mounting members. Exploded view showing how to install, Figure 4 is an explanatory front view of the long rack mounting member, Figure 5 is an explanatory front view of the long rack guide, Figure 6 is an explanatory diagram of the adjustment knob, and Figure 7 is the width. It is a positioning explanatory diagram of a change. R: Rack, P: Photographic paper, A, B, C...: Conveyance roller group, D: Conveyance direction conversion roller group,
1: Side plate, 1a, 1b,...1d: Wide part, 2
a, 2b, ... 2d: Rack plate part, 3, 3
₁ , 3 ₂ : Large diameter drive gear, 4, 5 ₁ , 5 ₂ , 6 ₁ , 6
₂ : Small diameter gear, 7a, 7a'7a'', 7b, 7b',
7b″, 8: Small diameter gear, 9, 9′: Guide piece,
10, 10': Guide piece fixing member, 12, 1
2, 12', 12': V-shaped guide piece for guide, 1
3, 13': V-shaped guide piece mounting member for guide, 1
5, 15': Adjustment sliding nut, 17: Screw shaft,
17': Right-hand thread, 17'': Left-hand thread, 18: Long rack, 20, 20', ...: Long rack mounting member,
21, 21', 21'': Long rack guide, 22,
22,...: Pinion, 23: Adjustment knob.

Claims (1)

[Scope of utility model registration request] An adjustment sliding nut to which a guide piece mounting member is fixed is screwed onto each threaded portion of the screw shaft, which has a right-hand thread on one side and a left-hand thread on the other side from the center. A pair of left and right guide guides for guiding both side edges of the photosensitive material attached to the guide guide piece mounting member by rotating the pair of adjustment sliding nuts in opposite directions. In a conveying device for a long photosensitive material that adjusts the interval between pieces, a long rack is movably extended from a starting end side to a lower part of the conveying device, and is engaged with the long rack at the starting end side of the conveying device. An adjustment knob equipped with a gear is rotatably attached to a side plate, and by rotating the adjustment knob, the elongated rack is moved upward or downward, and this movement is caused by a pinion fixed to the screw shaft. A conveying device for a long photographic material, characterized in that the distance between the pair of left and right guide pieces is adjusted by rotating the screw shaft by transmitting a signal.