JPH07114108A - Carrying device for photosensitive material - Google Patents

Abstract

PURPOSE:To enable a cutter part to be arranged near a paper magazine and to reduce the rewinding and the taking-out quantity of a photographic paper when the paper magazine is exchanged. CONSTITUTION:A driving roller 16 where the photographic paper P is wound round is rotatably supported by the magazine 12. The driving force of a motor 20 is transmitted to the roller 16 through a driving belt 18 provided in a photograph printing device. Besides, nip rollers 80 and 82 are rotatably supported at a position where they are faced to the roller 16. An abutting plate 158 is fitted to the rollers 80 and 82 and a cam plate 160 abuts on the abutting plates 158. When a lever 164 positioned outside a magazine main body 112 is turned, the cam plate 160 is rotated and the rollers 80 and 82 are separated from the roller 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photosensitive material transporting apparatus capable of transporting a photosensitive material in a magazine and sending it out to a processing apparatus side, and to a printer for photography or a printer processor in which a printer section and a processor section are integrated. It is applicable to a photographic processing device such as.

[0002]

2. Description of the Related Art In a printing apparatus (printer section) for printing an image from a negative film onto a photographic printing paper, which is a photosensitive material, a paper magazine containing photographic printing paper wound in a roll shape is loaded in the paper magazine. The photographic paper is pulled out from the paper and conveyed to the printing position, where the image is printed.
Then, the photographic printing paper is sent to a developing device (processor section) subsequent to the printing device and developed.

Further, in the conventional printing apparatus, the photographic paper is cut for each image after the photographic paper has been developed. However, in such a format, when the paper magazine is replaced, the image is printed in the paper magazine. It has the drawback that the amount of paper rewinding and the amount of paper withdrawn from the paper magazine increase.

Therefore, it is conceivable that a cutter unit is arranged in the vicinity of the paper magazine, and the cutter unit cuts the photographic paper in advance to the size of the printing image and then conveys it to the printing position. There is a limit to disposing the cutter unit close to the paper magazine, because a conveyance roller installed between the printer unit and the cutter unit in order to convey the photographic paper interferes. For this reason, the conventional printing apparatus of this type cannot sufficiently reduce the amount of rewinding.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above facts, and enables a cutter portion to be arranged in the vicinity of a paper magazine, and rewinds photographic paper when replacing the paper magazine. An object of the present invention is to obtain a photosensitive material conveying device capable of reducing the amount of drawing.

[0006]

According to a first aspect of the present invention, there is provided a photosensitive material transporting apparatus, wherein a magazine for storing a long photosensitive material and a drive rotatably disposed in a transporting path of the photosensitive material in the magazine. A roller and a drive source that is installed on the side of the apparatus main body for processing the photosensitive material sent from the magazine and that is connected to the drive roller and drives the drive roller;
A nip roller that is rotatably arranged at a position facing the drive roller and that nips the photosensitive material with the drive roller by contact with the drive roller and conveys the photosensitive material from the magazine to the apparatus main body side; A nip releasing member which moves at least one of the driving rollers to provide a gap between the nip roller and the driving roller to release the nipping of the photosensitive material by these rollers.

According to a second aspect of the present invention, there is provided a photosensitive material transporting apparatus, wherein a magazine containing a long photosensitive material is housed, a driving roller rotatably disposed in a photosensitive material transport path in the magazine, and a magazine from the magazine. A drive source installed on the side of the apparatus main body for processing the sent photosensitive material and connected to the drive roller to drive the drive roller; and a drive roller rotatably arranged at a position facing the drive roller. Nip roller for nipping the photosensitive material with the drive roller by abutting and transporting the photosensitive material from the magazine to the apparatus body side, and a nip roller arranged upstream of the driving roller in the transport direction of the photosensitive material and terminating the photosensitive material. Detecting means for detecting a portion of the photosensitive material, and controlling so as to stop the drive source when the detecting means detects the end portion of the photosensitive material and is connected to the detecting means. And having a control means for stopping in a sandwich state between the nip roller and the driving roller of the photosensitive material near.

[0008]

The operation of the photosensitive material conveying device according to the first aspect will be described below.

A drive roller rotatably arranged on the conveying path in the magazine of the photosensitive material is driven by a drive source on the apparatus main body side. A nip roller arranged at a position facing the drive roller comes into contact with the drive roller to sandwich the photosensitive material with the drive roller and convey the photosensitive material from the magazine to the apparatus main body side.

Therefore, since the drive roller and the nip roller are arranged in the magazine, the cutter portion can be arranged in the vicinity of the magazine, and the rewinding amount and the drawing amount of the photosensitive material at the time of exchanging the magazine can be reduced. Became possible.

Further, the nip releasing member moves at least one of the nip roller and the driving roller to provide a gap between the nip roller and the driving roller to release the nipping of the photosensitive material by these rollers.

Therefore, when the operator pulls out the photosensitive material from the magazine after storing the photosensitive material in the magazine, the nip releasing member is operated to release the nipping of the photosensitive material by the nip roller and the driving roller. This facilitates the pulling out work.

The operation of the photosensitive material conveying device according to the second aspect will be described below. According to another aspect of the present invention, when the detecting means arranged upstream of the drive roller in the conveying direction of the photosensitive material detects the end portion of the photosensitive material, the control means controls the drive source to stop, and the terminating end. The photosensitive material near the portion is stopped while being sandwiched between the driving roller and the nip roller.

Therefore, as in the first aspect, not only the amount of rewinding and withdrawing the photosensitive material at the time of exchanging the paper magazine can be reduced, but also when the photosensitive material is finished, the end portion of the photosensitive material is changed to the paper magazine. The drive source can be stopped, leaving behind. Therefore, by removing the magazine from the apparatus body, it is possible to easily remove the unexposed photosensitive material that cannot be processed from the apparatus body.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A photographic printing apparatus and a paper magazine to which an embodiment of a photosensitive material conveying apparatus according to the present invention is applied are shown in FIGS. 1 to 8, and the present embodiment will be described in detail with reference to these drawings. Explained.

FIG. 1 shows a photographic printing apparatus 10 according to an embodiment of the present invention. The photographic printing apparatus 10 that constitutes the printer unit of this photographic processing apparatus has a structure in which a paper magazine 12 containing photographic printing paper P can be loaded. When the opening / closing door 14 is closed after inserting the paper magazine 12 into the photo printing apparatus 10, the loading of the paper magazine 12 is completed. Therefore, the photographic printing apparatus 10 serves as an apparatus main body for processing the photographic printing paper P.

On the other hand, the main part of the paper magazine 12 is composed of a box-shaped magazine body 112 capable of accommodating the reel 110 on which the photographic printing paper P is wound from the open portion 112B. A guide plate 116 forming a conveyance path for the photographic printing paper P is attached via a hinge 114. The guide plate 116 rotates about the hinge 114 between the open state shown in FIG. 2 and the closed state shown in FIG.

As shown in FIG. 4, a pair of guide rollers 122 are rotatably arranged on the tip end side of the guide plate 116. Similarly, on the base end side of the guide plate 116, a pair of guide rollers are also provided. 122 is rotatably arranged. Therefore, the printing paper P is
The photographic printing paper P can be accurately conveyed along the conveyance direction by guiding the end portion in the width direction of the.

A roller roller 126 for guiding the photographic printing paper P is rotatably arranged at the tip of the guide plate 116.

Further, the lid body 132 is attached to the other end of the magazine body 112 via a hinge 134, and the lid body 132 is mounted between the open state shown in FIG. 2 and the closed state shown in FIG. The hinge 134 rotates about the hinge 134 to seal the open portion 112B.

A guide surface 133, which constitutes the inner wall of the paper magazine 12 and is positioned to face the guide plate 116 with the photographic paper P interposed therebetween and guides the photographic paper P.
Is provided on the lid body 132, and the guide roller 12 is provided at a portion of the guide surface 133 facing the guide roller 122.
The concave portion 133A is formed so as not to come into contact with 2.

On the other hand, in the upper left portion of the magazine main body 112 in FIGS. 1 and 3, a driving roller 16 around which the tip of the printing paper P is wound is rotatably supported. Shaft 17 that constitutes the axial center of the
As shown in FIG. 4, a pulley 152 is attached to one end side of the.

Further, the pulley 152 of the drive belt 18 which is a timing belt provided in the photo printing apparatus 10
The drive force of the motor 20 as a drive source arranged in the photo printing apparatus 10 is applied to the drive roller 16 via
And the drive roller 16 rotates. The motor 20 is connected to a control circuit 90 (shown in FIG. 6) that is a control means, and the control circuit 90 controls the forward and reverse rotation and stop operations.

The lid 13 facing the driving roller 16
At the position on the second side, not only the guide plate 154 and the roller roller 146 that form the conveyance path of the printing paper P are arranged, but also a pair of nip rollers 80 and 82 are rotatably supported. Then, the torsion spring 156 located between the nip rollers 80 and 82 is connected to the nip rollers 8 and 82.
0 and 82 are respectively urged to the drive roller 16 side.

From the above, in the closed state shown in FIG.
The photographic printing paper P includes the guide surface 133 of the lid body 132 and the guide plate 116.
Is sandwiched between the drive roller 16, the nip roller 80,
82 and the magazine opening 112A side, and these drive roller 16 and nip roller 8
0 and 82 sandwich the photographic printing paper P and convey it so that the front end of the photographic printing paper P is fed into the photographic printing apparatus 10.

On the other hand, as shown in FIGS. 5 and 6, an elliptical contact plate 158 is attached to the shaft ends of the nip rollers 80 and 82 so as not to rotate in the paper magazine 12. Cam plate 1 that abuts the abutment plate 158
60 is supported by the above-mentioned rotating shaft 17 so as to be relatively rotatable.

A rotary shaft 162 having a lever 164 installed at the shaft end outside the magazine body 112 is rotatably supported on the wall surface of the magazine body 112 so as to be adjacent to the rotary shaft 17. Rotating shafts 17, 16
Gears 166 and 168, which are in mesh with each other, are attached to the shaft 2. For this reason, the lever 164 moves the rotary shaft 1
When it is rotated around 62, as shown in FIG.
The cam plate 160, which is integrated with the gear 166, is rotated through the engagement between the gears 6, 168. Along with this, the contact plate 158 and the nip rollers 80 and 82 move against the biasing force of the torsion spring 156, and the nip rollers 80 and 82 are separated from the drive roller 16.
That is, the contact plate 158, the cam plate 160, the lever 164 and the like form a nip releasing member.

Further, as shown in FIG. 6, the driving roller 1
6 and the nip rollers 80 and 82, a detection lever 172, which is a detection unit whose central portion is rotatably supported by a rotating shaft 170, is located on the upstream side in the conveyance direction of the printing paper P. The leading end side is configured to move between a position where it can project into the transport path of the printing paper P as shown in FIG. 8 and a position where it can escape from the transport path of the printing paper P as shown in FIG. The base end side of the detection lever 172 projects outside the magazine body 112, and
The rotation of 2 causes the detection piece 92 in the photographic printing apparatus 10 connected to the control circuit 90 to reciprocate.

On the other hand, in the photo printing apparatus 10, a cutter 22 composed of a pair of upper and lower blades is installed, and this cutter 22 cuts the photographic paper P coming out from the magazine opening 112A of the paper magazine 12. It is like this.

In FIG. 1, on the downstream side of the cutter 22 in the conveyance direction of the printing paper P, which is on the right side, the upper surface is horizontal (see FIG.
A support base 46 formed along the upper and left and right directions is arranged. A winding roller 52 around which the endless belt 42 is wound is arranged between the support base 46 and the cutter 22 in the horizontal direction (the direction orthogonal to the paper surface in FIG. 1). Further, above the winding roller 52, an elevating roller 54 that holds the endless belt 42 between the winding roller 52 and the winding roller 52 is arranged in parallel with the winding roller 52.

Both ends in the axial direction of the elevating roller 54 are axially supported by an arm 56, and the arm 56 is connected to a self-holding solenoid 66 via a link 64.
Therefore, when the energizing pulse voltage is applied to the solenoid 66 and actuated, the arm 56 rises, and the elevating roller 54 separates from the endless belt 42.

When a pulse voltage for reverse operation is input to the solenoid 66, the arm 56 and the elevating roller 54 come into contact with the endless belt 42 on the winding roller 52 by the urging force of a spring (not shown), and the endless belt 42. The printing paper P can be sandwiched between the printing paper 42 and the paper 42.

A guide roller 68 around which the above-mentioned endless belt 42 is wound is located on the downstream side of the support base 46 in the conveyance direction of the printing paper P. At a position adjacent to the guide roller 68, a guide roller 69 is arranged such that the lower surface side is substantially level with the upper surface side of the winding roller 52, and the guide roller 69 is pressed to the outer circumference of the endless belt 42. Has been done.

That is, as shown in FIG. 1, the endless belt 42 is wound around the outer circumference of the guide roller 69 over about a quarter of its circumference, and then the endless belt 42 is wound around the outer circumference of the guide roller 68. The endless belt 42 in this portion is wound around about 2/3 and has an S shape. Further, the endless belt 42 is wound around the tension roller 76 below the guide roller 68 to form an inverted triangular movement locus.

On the other hand, the guide roller 68 is driven and rotated by receiving the driving force of the motor 72 via the timing belt 74, and drives the endless belt 42 to rotate clockwise in FIG.

Therefore, the photographic printing paper P sent out from the paper magazine 12 is cut into a desired length by the cutter 22, and then placed on the endless belt 42 and positioned on the optical axis S of the printing light. Transported to G. Then, the printing light from the light source 26 reaches the photographic printing paper P via the optical means 28 and the shutter 32, whereby the negative film N
The image recorded in (1) is printed on the photographic printing paper P, and the portion where the image is printed becomes the printing image.

Further, the photographic printing paper P on which the image printing has been completed
Is sandwiched between the guide roller 68 and the guide roller 69, and its conveying direction is changed from the horizontal direction to the vertical direction and is sent out in the vertical direction. After that, the photographic printing paper P is sent to the developing device 36 via the conveying path 34, and the printing image is developed.

On the other hand, the endless belt 42 has a large number of small holes (not shown) formed over the entire area thereof, so that the photographic printing paper P can be arranged horizontally at the image printing position G. On the upper surface of the support base 46 on which a part of
A large number of holes (not shown) are formed.

Further, the inside of this support base 46 is formed in a hollow shape, and a pair of communication ducts 84 (only one of which is shown in the figure) corresponding to both widthwise ends of the endless belt 42 are connected to this support base 46. Has been done. These communication ducts 84
Circumvents the folded-back portion of the endless belt 42 arranged below the support base 46 and reaches below the endless belt 42. The communication duct 84 is further extended downward and connected to a fan box 86 provided with a suction fan 85.

As a result, the air in the support base 46 escapes in the width direction from the inside of the loop of the endless belt 42 through the communication duct 84, is sucked by the suction fan 85 and is blown to the outside. It becomes negative pressure. This negative pressure is transmitted to the printing paper P on the endless belt 42 through the holes of the support base 46 and the small holes of the endless belt 42, and the printing paper P is sucked to the endless belt 42 as indicated by arrow A. It

Therefore, the photographic printing paper P is not only simply put on the endless belt 42 but also sucked toward the endless belt 42 side, so that the photographic printing paper P is surely conveyed by the endless belt 42.

As shown in FIG. 1, an easel device 78 is provided above the endless belt 42 moving on the support base 46.
Is provided so as to cover the periphery of the printing paper P when the bordered image is printed on the printing paper P.

The operation of this embodiment will be described below. In the open state shown in FIG. 2, an operator stores the reel 110 on which the printing paper P is wound into the paper magazine 12 from the open portion 112B of the magazine body 112. And the guide plate 11
6 and the lid 132 are rotated to bring them into the closed state shown in FIG. At this time, as shown in FIGS. 3 and 4, the guide roller 122 is passed between the guide rollers 122 and the drive roller 16 as well.
While passing between the nip rollers 80 and 82 and the photographic paper P
The leading end side of is fed into the magazine opening 112A.

Further, the photographic paper P for the paper magazine 12 is
When the operator pulls out the photographic printing paper P from inside the paper magazine 12 after storing the paper, the lever 164 is operated to separate the nip rollers 80 and 82 from the drive roller 16,
By releasing the nip between the drive roller 16 and the nip rollers 80 and 82 with respect to the printing paper P, it becomes easy to pull out.

In particular, when the photographic printing paper P having a light-shielding wrapping paper (not shown) wrapped around the outer peripheral side is stored in the paper magazine 12, the photographic printing paper P connected to the wrapping paper is the opening of the paper magazine 12. The wrapping paper must be pulled out of the paper magazine 12 until it exits the lever 164
To operate the nip rollers 80 and 82 and the drive roller 16
It became possible to easily pull out the wrapping paper by providing a gap between and.

After that, when the paper magazine 12 is loaded in the photographic printing apparatus 10, the motor 20 rotates and the rotation is transmitted to the drive roller 16 via the drive belt 18, and the drive roller 16 rotates in the clockwise direction. The photographic paper P sandwiched between the drive roller 16 and the nip rollers 80 and 82 is sent out from the paper magazine 12 by a predetermined amount.

Then, the photographic printing paper P sent to the photographic printing apparatus 10 side is cut into a predetermined length by a cutter 22 arranged adjacent to the right side of the paper magazine 12 in FIG.

That is, since the drive roller 16 and the nip rollers 80 and 82 are arranged in the paper magazine 12, the cutter 22 can be arranged in the vicinity of the paper magazine 12, and the printing paper P when the paper magazine 12 is replaced. It has become possible to reduce the amount of rewinding and the amount of pulling out.

Further, the cut photographic paper P is moved on the support base 46 by the endless belt 42, an image is printed on the photographic paper P, and is sent to the developing device 36 via the conveying path 34. The printed image is developed respectively. Then, the above operation is repeated, and the printing paper P in the paper magazine 12 is sequentially consumed.

When the photographic printing paper P is consumed and the photographic printing paper P is exhausted as described above, the detection lever 172 does not receive the resistance of the photographic printing paper P, so that it can be escaped from the conveyance path of the photographic printing paper P ( 6) to a position (shown in FIG. 8) where the detection lever 172 can project from the photographic paper P conveyance path.
Rotates, so that the end portion of the photographic printing paper P is detected. Along with this, when the detection piece 92 moves and sends a signal notifying that the printing paper P is finished to the control circuit 90, the control circuit 90 controls the motor 20 to stop and the printing near the end portion. The paper P is stopped while being sandwiched between the drive roller 16 and the nip rollers 80 and 82.

Therefore, when the printing paper P is finished, the motor 20 can be stopped while leaving the end portion of the printing paper P in the paper magazine 12. Therefore, by removing the paper magazine 12 from the photographic printing apparatus 10, the unexposed photographic printing paper P which cannot be processed can be easily removed from the photographic printing apparatus 10.

That is, if the end portion of the photographic printing paper P is left in the photographic printing apparatus 10, a complicated work is required to remove the end portion from the photographic printing apparatus 10, but according to this embodiment. , There is no need for such work.

In this embodiment, the nip roller 8
Although 0 and 82 are moved, the drive roller 16 may be moved, and the detection means is the contact type detection lever 172 in the present embodiment, but a well-known sensor such as a non-contact type is used instead. It goes without saying that you can do it.
Further, the number of nip rollers may be one or a plurality of three or more.

On the other hand, in this embodiment, after the photographic paper P is stored in the paper magazine 12, the operator manually operates the pulley 152 for transmitting power between the drive roller 16 and the motor 20 on the side of the photo printing apparatus 10. Printing paper P
The effect that the tip part of can be easily sent to an appropriate position is also derived.

Further, in the present embodiment, the photosensitive material is photographic paper, but it may be a photosensitive material such as a film other than photographic paper.

[0056]

As described above, the photosensitive material conveying apparatus of the present invention allows the cutter portion to be arranged in the vicinity of the paper magazine, so that the amount of rewinding and pulling out the photographic paper at the time of exchanging the paper magazine can be improved. It has an excellent effect that it can be reduced.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a photographic printing apparatus in which an embodiment of a photosensitive material conveying apparatus according to the present invention is adopted.

FIG. 2 is a side view of a paper magazine to which an embodiment of the photosensitive material conveying device according to the present invention is applied, showing the opened state of the paper magazine.

FIG. 3 is a side view of a paper magazine to which an embodiment of the photosensitive material conveying device according to the present invention is applied, showing a closed state of the paper magazine.

FIG. 4 is a partially cutaway front view of a paper magazine adopting an embodiment of the photosensitive material transport device according to the present invention, showing a closed state of the paper magazine.

FIG. 5 is an exploded perspective view of a main part of a paper magazine to which an embodiment of the photosensitive material conveying device according to the present invention is applied.

FIG. 6 is an enlarged schematic view of an essential part of a paper magazine to which an embodiment of the photosensitive material conveying device according to the present invention is applied;
It is a figure which shows the conveyance state of photographic printing paper.

FIG. 7 is an enlarged schematic view of an essential part of a paper magazine to which an embodiment of the photosensitive material conveying device according to the present invention is applied,
FIG. 6 is a diagram showing a state in which a nip roller and a drive roller are separated from each other.

FIG. 8 is an enlarged schematic view of a main part of a paper magazine to which an embodiment of the photosensitive material conveying device according to the present invention is applied,
FIG. 7 is a diagram showing a state in which the detection lever detects the end portion of the printing paper.

[Explanation of symbols]

 10 Photographic Printing Device 12 Paper Magazine 16 Drive Roller 20 Motor 80 Nip Roller 82 Nip Roller 90 Control Circuit 92 Detection Piece 112 Magazine Main Body 158 Contact Plate 160 Cam Plate 164 Lever 172 Detection Lever P Printing Paper

Claims (2)

[Claims] 1. A magazine for accommodating an elongated photosensitive material, a drive roller rotatably arranged in a conveyance path of the photosensitive material in the magazine, and a device for processing the photosensitive material sent from the magazine. A drive source installed on the main body side and connected to the drive roller to drive the drive roller, and a drive source rotatably arranged at a position facing the drive roller and brought into contact with the drive roller. A nip roller that holds the photosensitive material and conveys it from the magazine to the apparatus main body side, and a gap is provided between the nip roller and the drive roller by moving at least one of the nip roller and the drive roller. And a nip releasing member for releasing the nipping of the photosensitive material by the rollers, and a conveying device for the photosensitive material. 2. A magazine containing a long photosensitive material, a drive roller rotatably arranged in a conveyance path of the photosensitive material in the magazine, and a device for processing the photosensitive material sent from the magazine. A drive source installed on the main body side and connected to the drive roller to drive the drive roller, and a drive source rotatably arranged at a position facing the drive roller and brought into contact with the drive roller. A nip roller for sandwiching the photosensitive material and transporting it from the magazine to the apparatus main body side; detection means arranged upstream of the drive roller in the transport direction of the photosensitive material and detecting the end portion of the photosensitive material; The drive source is connected to the detection means, and when the detection means detects the end portion of the photosensitive material, the drive source is controlled to stop, and the photosensitive material near the end portion is connected to the drive roller. Conveying apparatus of the photosensitive material characterized by having a control means for stopping in a sandwich state between the serial nip rollers.