JPH048130Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention is installed in a photographic processing machine etc. that performs various processing on a long photographic material such as a long photographic paper, etc. Regarding a guide device for guiding a long photosensitive material to be conveyed, in particular, a long photosensitive material in which the guide width of a guide member for guiding the long photosensitive material can be adjusted according to the width dimension of the long photosensitive material. This invention relates to a material conveyance guide device.

(Prior art) For example, in a photo processing machine that automatically prints an image on a long photographic paper and automatically develops it, it is difficult to use a dedicated machine for each photographic paper of different width. In order to avoid inconvenience, the guide width of the guide member in the guide device provided along the conveyance path of the photographic paper can be changed so that a plurality of types of photographic paper having different widths can be processed.

By the way, as a conventional guide device in which the guide width of the guide member can be changed, as shown in FIG.
Each guide piece 11 of the guide member 110 consisting of b
0a, 110b have moving screw bodies 111a, 111
b is provided, and each of the moving screw bodies 111a, 111
A positioning operation rod 121 with a knob 120 is inserted through b in parallel to the support shaft 112, and the operation rod 121
and one moving screw body 111a are connected with a right-hand screw, and the other moving screw body 111b is connected with a left-hand screw, and the shaft of a gear 124 is meshed with a pinion 123 fixed to an operating rod 121. 1
25 has a large number of positioning notches 126 on its outer periphery.
A biasing lever 12 is attached with a positioning cam 127 having a shape formed therein, and a positioning roller 128 that can be freely engaged and detached from each positioning notch 126 is biased in the direction of the positioning cam 127 by a biasing spring 130.
9, and allows the pair of left and right guide pieces 110a, 110b to approach and separate by rotating the knob 120, and small holes 171 ₁ , 171 ₂ , 171 ₃ , for confirming guide width adjustment. A detection plate 170 equipped with... is fixed to the lower end of the one guide piece _110a , and each of these small holes 1
A guide device in which sensors _{180 1 ,} 180 2 , 180 ₃ , . . . for detecting 71 ₁ , 171 ₂ , 171 ₃ , .

(Problems to be Solved by the Invention) In this type of conventional guide device, the guide width adjustment means by the guide pieces 110a, 110b is exclusively performed by the screw transmission mechanism as described above. Because of this, it takes time to adjust the guide width, and it cannot be done quickly. In addition, if the screw pair becomes loose due to long-term use, the positioning roller 128 Even if the sensor 180 ₁ is inserted into the notch 126,
There was an unavoidable inconvenience or difficulty in that 180 ₂ , 180 ₃ , . . . did not work.

(Means for Solving the Problems) In view of the above-mentioned inconveniences, difficulties, and other shortcomings, the present invention allows the guide width to be adjusted quickly and accurately with extremely simple operations, and for a long period of time. This makes it possible to provide a guide device for transporting long photographic material that does not cause adjustment errors due to the use of a unit. The movable members are movably supported on the stand, are biased toward each other by a biasing member, and are supported one by one by separate movable members that are moved in opposite directions by an interlocking member. , one of the movable members is attached to a movable member support which is arranged to be reciprocally movable on the unit mount, and into which an operating rod is rotatably and immovably fitted, and fixed to the unit mount. The block body into which the operating rod is inserted is selectively engaged with the positioning points in a positioning engager holder, which is formed with a plurality of positioning points corresponding to the width of the elongated photosensitive material. A detection plate equipped with a guide width adjustment confirmation part is connected to one of the movable members, and a detection plate equipped with a guide width adjustment confirmation part is connected to one of the movable members. A sensor is installed in the circuit of the sensor, and a switch that is opened and closed by a switch opening/closing member that is moved in conjunction with the movement of the positioning engager to engage the positioning portion of the positioning engager holder is installed in the circuit of the sensor. and when the positioning engager completes engagement with the positioning portion of the positioning engager holder, the switch is closed by the switch opening/closing member, and the sensor can transmit a guide width adjustment completion signal. It has characteristics.

(Function) The guide device for conveying a long photosensitive material according to the present invention has the above-mentioned configuration, and can freely move back and forth when guiding the photosensitive material during conveyance. Pull back the operating shaft to remove the positioning engager from the positioning part of the positioning engager holder, and rotate it to engage the positioning engager with the positioning part of the positioning engager holder corresponding to the width of the photosensitive material. When the operating shaft is pushed in and engaged, as the operating shaft moves back and forth, the movable member supporting one of the guide pieces constituting the guide member that guides both sides of the photosensitive material is moved. The guide members also move away from each other and approach each other against the biasing force, and are brought to a standstill while maintaining the guide width that can be guided, with the distance between the guide pieces corresponding to the width of the elongated photosensitive material being conveyed.

On the other hand, in the process of adjusting the guide width, the switch opening/closing member is also moved to follow the movement of the positioning engager, and the positioning engager is engaged and held at the desired positioning point, and the guide width adjustment is completed. Then, the switch opening/closing member closes the switch, and the sensor that detects the guide width adjustment confirmation portion of the detection plate connected to one of the movable members sends a guide width adjustment completion signal.

(Example) Hereinafter, an example will be described in which the guide device for conveying a long photosensitive material according to the present invention is used in a photographic processing machine that automatically prints an image on photographic paper and automatically develops it. Embodiments of the present invention will be explained in detail with reference to the illustrated drawings.

First, in FIG. 1 shown to explain the general configuration of the entire photo processing machine, 1 is a printer section;
Reference numeral 2 indicates a processor section, 3 indicates a dryer section, and 4 indicates a cutter section. Photographic paper P is wound around a bobbin 5 that is rotatably installed in the printer section 1. Each conveyance roller 6, 6,... is installed at a predetermined position.
While being pulled out and conveyed by..., printing is performed by the printing device 7 provided in the printer section 1, and development processing is performed in the processor section 2 by immersing it in a developing processing solution etc. carried out,
Furthermore, it is dried in the dryer section 3,
After that, the cutter 8 installed in the cutter part 4
It is designed so that it can be cut between the burned surface parts by.

When transporting the photographic paper P during this time, in order to transport the photographic paper P accurately without causing any positional deviation or meandering, for example, a section A in the printer section 1, a section between the printer section 1 and the processor section are arranged. 2
A guide device is installed in a section B between the dryer section 3 and the cutter section 4, a section C between the dryer section 3 and the cutter section 4, a section D of the cutter section 4, etc. These guide devices are
The configuration is as shown in FIGS. 2 to 4.

In the figure, reference numeral 10 denotes a guide member consisting of a pair of left and right guide pieces 10a and 10b that guide both sides of the photographic paper P. A pair of left and right moving members 30 are supported by U-shaped fixtures 11a and 11b so as to be movable in the left-right direction along one side of a unit mounting base 20, which will be described later.
It is fixed to a and 30b.

The unit mounting base 20 has holes 21a and 21b for regulating the movement direction of a moving member in the left and right direction that penetrate from one side to the other side of a substantially rectangular parallelepiped block main body, and are formed in a straight line at intervals, and on the right side of the upper surface. A wide mounting portion 22 is formed on the unit mounting base 20, and a pinion 24 is pivotally attached to the unit mounting base 20 by a support shaft 23 mounted in the center between the moving member movement direction regulating holes 21a and 21b. There is,
Furthermore, headed guide pins 25a and 25b are attached at symmetrical positions in the vertical direction with the support shaft 23 as the center.

The movable members 30a and 30b have racks 31a and 31b that face and mesh with the pinion 24 on the plate-shaped main body, and the headed guide pin 25.
a, movement direction regulating hole 32a, which slides into 25b;
32b, and a hole 2 for regulating the movement direction of the moving member formed in the unit mounting base 20.
1a, 21b to support rolling rollers 33a, 33b, and fix support shafts 34a, 34b passing through the direction regulating holes 21a, 21b, and the shaft ends of these support shafts 34a, 34b A tension spring 35 is stretched between them. Note that the support shaft 34
E-rings (not shown) are attached to a and 34b in contact with the unit mounting base 20.

That is, the rack 3 of the moving members 30a, 30b
1a and 31b face and mesh with the pinion 24, and the rollers 33a and 33a of the support shafts 34a and 34b
33b is the hole 21a, 21 for regulating the movement direction of the moving member.
b, and the movement direction regulating hole 32
a, 32b are slidably fitted onto the headed guide pins 25a, 25b, so that the pair of left and right moving members 30a, 30b are supported so as to be movable in the left-right direction along one side of the unit mounting base 20. Further, the pair of left and right moving members 30a, 30b cannot be removed from the unit mounting base 20 by the headed guide pins 25a, 25b and E-rings (not shown) attached to the support shafts 34a, 34b.

Reference numeral 40 denotes a positioning engager holder which is fixed to the upper surface of the wide mounting portion 22 of the unit mounting base 20 and engages and holds a positioning engager 56, which will be described later. and the width of the wide mounting portion 2, respectively.
A plurality of positioning points corresponding to the width dimensions of different photographic light-sensitive materials are provided over the front end surface and outer surface of the block body smaller than the length and width of 2. Positioning grooves 41 ₁ , 41 corresponding to the width dimensions of
₂ , . . . are formed radially, and a guide hole 42 (see FIG. 4) is formed at the intersection of the positioning grooves 41 ₁ , 41 ₂ , .

Further, on the upper surface of the wide mounting part 22, there is a spring storage part 43 that stores a compression spring 64, which will be described later, following the positioning engager holder 40, and a spring receiver 44 on the rear wall of this spring storage part 43. In addition to an operating rod guide 45 having a U-shape in plan view for housing an operating rod 50 to be described later, a limit switch S is provided on one side of the operating rod guide 45.

Reference numeral 50 denotes an insertion hole 38 formed in the movable member support 36 which is attached to the upper part of the movable member 30a and is slidable on the upper surface of the unit mounting base 20.
The operating rod 50 is inserted into the guide hole 42 formed in the positioning engagement element holder 40, and can be rotated by the moving member support 36 by the E-rings 51 and 52. The front end of the knob 53 has a knob 53 and a mark 5.
A scale plate 55 having a number 4 is fixed thereto, and in the middle thereof, a positioning engager 56 is selectively engaged and held in the positioning grooves 41 ₁ , 41 ₂ , . . . of the positioning engager holder 40. It is planted, and its rear end extends into the operating rod guide 45. Further, a guide member 37 is fixed to the movable member support 36 on the side opposite to the movable member 30a.

Reference numeral 60 denotes a switch opening/closing member which is slid on the positioning engaging element holder 40 following the movement of the positioning engaging element 56 by a compression spring 64, which will be described later.
The positioning groove 4 is formed on the front edge of the cover-like main body, which is formed in a shape to cover the outer surface and rear end surface of the positioning engagement element holder 40 except for the front end surface and the lower surface.
The engaging portions 61 ₁ , 61 ₂ , . . . are formed in a stepwise manner corresponding to the groove bottoms of the grooves _{1 1} , 41 ₂ , .
A switch operating piece 62 is provided protruding from the rear end edge, and a boss portion 63 through which the operating rod 50 is inserted is formed on the rear end plate of the cover-like main body. Spring receiving part 44
A compression spring 64 (weaker than the tension spring 35) for pushing the switch opening/closing member 60 is wound around the operating rod 50 between the two.

70 is a detection plate connected to the lower end of the moving member 30b, and this detection plate 70 is provided with small holes 71 ₁ , 71 ₂ , 71 ₃ , . . . for confirming guide width adjustment.

Further, 80 ₁ , 80 ₂ , 80 ₃ are sensors arranged on a fixed substrate 90, and each sensor 80
The limit switch S is arranged in the circuits ₁ , 80 ₂ and 80 ₃ .
are closed by the switch operating piece 62 of the switch opening/closing member 60, the sensors 80 ₁ , 80 ₂ ,
Small holes for checking guide width adjustment by 80 ₃ 71 ₁ , 7
1 ₂ , 71 ₃ , . . . and the small holes 71 ₁ , 71 ₂ , 71 ₃ , . . . are encoded, so when the number of sensors is n, Since the number of sensors that can be detected is ²ⁿ , there is no need to arrange as many sensors as there are different guide widths.

Since the embodiment of the present invention is configured as described above, when the knob 53 is grasped and the operating rod 50 is pulled forward against the tension spring 35, the positioning engager 56 is removed from the positioning engager holder 40. , one movable member 30a moves together with the operating rod 50, and the other movable member 30b is moved in the opposite direction by the rack 31a, pinion 24, and rack 31b. The interval between 10a and 10b becomes wider. Next, turn the knob 53 according to the width of the photographic paper.
After adjusting the rotation of the mark 54 on the mark plate 55 to match the desired guide width number written on the position display board (not shown), and aligning the positioning engager 56 with the desired positioning groove, turn the operating lever. 50 to engage and hold the positioning engager 56 in a desired positioning groove, the movable member support 36 that moves together with the operating rod 50, the movable member 30a that moves together with the movable member support 36, the rack 31a and the pinion 24 and the moving member 3 that moves via the rack 31b.
0b narrows the interval width between the pair of left and right guide pieces 10a, 10b constituting the guide member 10, and the guide width of the guide member 10 is adjusted.

In the process of this adjustment, the switch opening/closing member 60 is slid by the positioning engager 56 against the compression spring 64 in the direction of the limit switch S, and the detection plate 70 is moved by the moving member 3.
0b in the opposite direction to the switch opening/closing member 60, and when the positioning engager 56 is engaged and held in the desired positioning groove and the adjustment of the guide width is completed, the limit switch S is moved by the switch operation piece 62. closed, sensors 80 ₁ , 80 ₂ ,
80 ₃ are small holes 71 ₁ , 71 ₂ for confirming guide width adjustment,
. . . is detected, a guide width adjustment completion detection signal is transmitted, and a display means (not shown) displays that the guide width adjustment is complete.

Further, when operating the operating rod 50 as described above, the support shafts 34a, 34b fixed to the moving members 30a, 30b are moved through the moving member movement direction regulating hole 2 of the unit mounting base 20 via the rollers 33a, 33b.
Movement direction regulating holes 3 provided in moving members 30a and 30b are regulated in the movement direction by holes 1a and 21b.
2a, 32b are fixed to the unit mounting base 20 with headed guide pins 25a, 25b to restrict the moving direction of the moving member 30.
a and 30b are smoothly moved in opposite directions via a pinion 24 which is pivoted to the support shaft 23 of the unit mounting base 20, and the moving members 30a and 30b are
b are always urged to approach each other by a tension spring 35 stretched between the support shafts 34a, 34b, so that no rattling occurs between the racks 31a, 31b and the pinion 24.

In the above-mentioned embodiment, the guide device of the present invention was explained as being used in a photo processing machine for photographic paper, but it can also be used as a guide device installed in a negative film development processing device to guide the negative film. It can also be used.

(Effects of the invention) As described in detail above, the guide device for conveying a long photosensitive material according to the present invention has a guide member consisting of a pair of left and right guide pieces that guide both sides of the long photosensitive material. The guide piece is fixed to a movable member that is biased in the proximal direction and is moved in opposite directions, and the movable member is moved by reciprocating movement of an operating rod without using a screw transmission mechanism. This not only makes it possible to adjust the guide width using the guide member extremely quickly, but also eliminates rattling caused by the screw, which could not be avoided with a screw transmission mechanism.
Misalignment due to gear backlash is eliminated, and the accuracy of guide width adjustment is improved.Furthermore, when the guide width adjustment is completed, the switch is closed by the switch opening/closing member that moves following the positioning engager, and the guide width is adjusted using a sensor. Since the completion signal is transmitted, it is possible to achieve various excellent effects such as eliminating operational errors that could not be avoided with conventional guide devices.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram for explaining the overall configuration of a photographic processing machine in which a guide device for conveying a long photosensitive material according to the present invention is installed, and FIG. 2 is a diagram showing a part of the guide member in chain lines. FIG. 3 is a plan view, FIG. 4 is a sectional view of a main part, and FIG. 5 is a perspective view of a conventional guide device. 10...Guide member, 10a, 10b...Guide piece, 11a, 11b...Mounting tool, 20...Unit mounting base, 21a, 21b...Movable member movement direction regulating hole, 22...Wide mounting portion, 23... Support shaft, 24... Pinion, 25a, 25b... Headed guide pin, 30a, 30b... Moving member,
31a, 31b...Rack, 32a, 32b...
Movement direction regulating hole, 33a, 33b... roller, 3
4a, 34b...Support shaft, 35...Tension spring,
36... Moving member support body, 37... Guide member, 3
8...Insertion hole, 40...Positioning engager holder, 41 ₁ , 41 ₂ ,...Positioning groove, 42...
Guide hole, 43... Spring storage part, 44... Spring receiving part, 45... Operating rod guide, 50... Operating rod, 5
1, 52...E ring, 53...knob, 54...
Mark, 55... mark plate, 56... positioning engager, 60... switch opening/closing member, 61 ₁ , 61 ₂ ,
......Engagement part, 62...Switch operation piece, 63...
... Boss part, 64 ... Compression spring, 70 ... Detection plate,
71 ₁ , 71 ₂ , small hole for checking guide width adjustment,
80 ₁ , 80 ₂ , 80 ₃ ... sensor, 90 ... substrate, P ... photographic paper, S ... limit switch.

Claims (1)

[Scope of utility model registration request] The separate guide pieces of the guide member that guides both sides of the photographic photosensitive material are movably supported on the unit mounting base, are biased toward each other by a biasing member, and are interlocked. One of the movable members is supported by separate movable members that are moved in opposite directions, and one of the movable members is disposed on the unit mounting base so as to be movable back and forth, and the operating rod is rotatable. The block body, which is attached to a movable member support that is immovably inserted and fixed to the unit mounting base, and through which the operating rod is inserted, has a plurality of positioning positions corresponding to the width of the elongated photosensitive material. An engaging element that is selectively engaged with the positioning part of the positioning engaging element holder formed with a positioning part is provided protruding from the operating rod, and a part for confirming guide width adjustment is provided on one of the moving members. A sensor for detecting the guide width adjustment confirmation part is installed on the fixed board, and the positioning engager engages with the positioning part of the positioning engager holder in the circuit of the sensor. A switch is arranged to be opened and closed by a switch opening/closing member that is moved in conjunction with the matching operation, and when the positioning engager finishes engaging the positioning portion of the positioning engager holder, the switch is opened and closed by the switch opening/closing member. A guide device for conveying a long photographic material, characterized in that the guide device is configured such that when the switch is closed, a guide width adjustment completion signal can be transmitted by a sensor.