JP3400036B2 - Magazine shutter structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magazine shutter structure capable of guiding a photosensitive material to be conveyed while shielding light in a magazine, and relates to a photographic printer 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, a shutter is arranged in the vicinity of the magazine opening of the above-mentioned paper magazine for sending out the printing paper from the inside of the paper magazine, and the shutter shields the inside of the paper magazine when the printing paper is not used.

However, the shutter of the conventional paper magazine merely has a function of shielding the inside of the paper magazine, and does not have a function of guiding the photographic paper when the photographic paper is conveyed. For this reason, a guide material in the thickness direction of the photographic paper is provided separately from the shutter, and the guide material is used to stably convey the photographic paper from within the paper magazine. Therefore, as a result of requiring a guide member for guiding the printing paper in addition to the shutter, there is a drawback that the number of parts increases and the manufacturing cost cannot be reduced.

On the other hand, if the surface of the shutter or the wall surface of the paper magazine facing the shutter is simply used as a guide material, the emulsion surface of the printing paper hits either the surface of the shutter or the wall surface of the paper magazine. There was a risk of scratches on the emulsion surface of the paper.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above facts, and guides the photographic paper when sending the photographic paper out of the paper magazine while shielding the light from the inside of the paper magazine. It is an object to obtain a shutter structure of a magazine that can be used.

[0007]

According to a first aspect of the present invention, there is provided a shutter structure for a magazine, wherein a magazine for storing a long photosensitive material and a conveying path for the photosensitive material from the magazine are arranged in the magazine so as to be openable and closable. a shutter and to shield said magazine in the closed state of the transport path is, is rotatably disposed at a position opposed to the shutter via the conveyance path of the photosensitive material and with the opening and closing operation of the shutter shuts
A guide roller urged toward the shutter so as to move integrally with the shutter.

According to another aspect of the present invention, there is provided a shutter structure for a magazine, in which a long-sized photosensitive material is housed and a conveying path of the photosensitive material from the magazine is arranged in the magazine so as to be opened and closed and the conveying path is closed. A shutter that shields the inside of the magazine in a state, a shutter operation member that is fixed to the shutter and that opens and closes the shutter by engaging with the apparatus main body side that processes the photosensitive material, and the shutter via a conveyance path of the photosensitive material. A guide roller rotatably arranged at a position facing the shutter, and urging the guide roller toward the shutter so as to abut the guide roller and move the guide roller in accordance with the opening / closing operation of the shutter. And an elastic member. Also,
The shutter structure of the magazine according to claim 3 is the shutter structure.
The opening / closing operation of the printer should be in the thickness direction of the photosensitive material.
Characterize.

[0009]

The operation of the shutter structure of the magazine according to claim 1 will be described below.

A shutter arranged to be able to open and close the conveyance path of the photosensitive material stored in the magazine shields the inside of the magazine while the conveyance path is closed, and is positioned at a position facing the shutter via the conveyance path of the photosensitive material. The guide roller to be placed is
Along with the opening / closing operation of the shutter, the shutter is urged to move integrally with the shutter.

Therefore, when the photosensitive material is conveyed with the shutter open, the photosensitive material passes through between the shutter and the guide roller to reach the outside of the magazine, but the guide roller rotatable toward the emulsion side of the photosensitive material. If the light-sensitive material is arranged so that it comes into contact with each other, scratches such as rubbing with the fixed guide will not occur on the emulsion surface. Therefore, when the photosensitive material is sent out from the magazine while the light is shielded from the inside of the magazine, the scratches and the guide rollers can be guided without attaching scratches to the photosensitive material which may cause a problem in image quality.

The operation of the shutter structure of the magazine according to claim 2 will be described below. In the second aspect, the shutter operating member fixed to the shutter engages with the apparatus main body side that processes the photosensitive material to open and close the shutter. Further, the elastic member that abuts the guide roller urges the guide roller toward the shutter so that the guide roller moves as the shutter opens and closes.

Therefore, when the magazine is loaded in the main body of the apparatus and the photosensitive material is sent out from the magazine, the shutter and the guide roller guide the photosensitive material without damaging the photosensitive material as in the first aspect. can do.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A photographic printing apparatus and a paper magazine to which an embodiment of a shutter structure for a magazine 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. explain.

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 a box-shaped magazine capable of accommodating the reel 110 having the outer peripheral surface side as the front surface side (emulsion surface side) and winding up the photographic printing paper P from the open portion 112B shown in FIG. The magazine main body 112 has a hinge 11 at one end thereof.
A guide plate 1 that forms a conveyance path of the photographic printing paper P via 4
16 is attached. 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, and a pair of guide rollers are similarly arranged on the base end side of the guide plate 116. 122 is rotatably arranged. Therefore, the four guide rollers 122 in total guide the end portion of the photographic paper P in the width direction so that the photographic paper P can be accurately conveyed in the conveying direction.

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 a concave portion 133A is formed in a portion of the guide surface 133 facing the guide roller 122 so as not to come into contact with the guide roller 122.

On the other hand, in FIG. 3 of this magazine body 112,
A drive roller 16 around which the tip of the photographic printing paper P is wound is rotatably supported on the upper left portion, and one end of a rotary shaft 17 that constitutes the shaft center of the drive roller 16 is provided with a drawing. As shown in FIG. 4, a pulley 152 is attached.

Further, the pulley 152 of the drive belt 18 which is a timing belt provided in the photo printing apparatus 10
The driving force of the motor 20 arranged in the photo printing apparatus 10 is transmitted to the driving roller 16 through the winding around the driving roller 16, and the driving roller 16 rotates.

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
0 and 82 are respectively urged to the drive roller 16 side.

At a position downstream of the drive roller 16 of the magazine body 112 in the conveying direction of the photographic paper P, a metallic shutter 180 is in a direction orthogonal to the conveying path, and is a vertical direction in FIGS. 3 and 6. It is supported so that it can reciprocate, and is constantly urged upward by a spring (not shown). The upper end surface 180A of the shutter 180 is bent in the conveying direction so that the photographic printing paper P is not damaged when it comes into contact with the photographic printing paper P. Also, as shown in FIG.
In order to lock the pin 182 for reciprocating the shutter 180 to the lower end side, the lower end side of the shutter 180 is formed so as to be partially wound around the outer peripheral side of the pin 182, and the center part of the pin 182 is abutted. The contact ring 183 is fixed. That is, the pin 182 and the contact ring 183 constitute a shutter operating member.

Further, the shutter 180 of the guide plate 154
5 and 6 are a pair of roller rollers 184, which are guide rollers formed by arranging rubber rollers 184B on the outer circumference of the rotary shaft 184A at equal intervals.
It is supported so that it can move up and down. Further, in the portion of the guide plate 154 corresponding to the rubber roller 184B,
A hole portion 154A is provided below the guide plate 154 to project the rubber roller 184B.

The bracket 18 is attached to the guide plate 154.
6 are engaged and fixed, and the leaf spring 188, which is an elastic member screwed to the bracket 186, is used as the rotary shaft 1.
84A is urged downward in FIGS. 5 and 6, and the roller roller 184 constantly causes the upper end surface 1 of the shutter 180 to move.
It follows the movement of 80A. The urging force of the leaf spring 188 is smaller than the urging force of the spring on the shutter 180 side and does not hinder the opening / closing operation due to the vertical movement of the shutter 180.

From the above, the shutter 1 as shown in FIG.
In the closed state of the shutter 180 in which 80 closes the conveyance path, the roller roller 184 escapes upward and the guide plate 154
The upper end surface 180A of the shutter 180 abuts the lower surface of the shutter 180 without a gap, so that the paper magazine 12 is shielded from light.

Further, as the paper magazine 12 is loaded into the photo printing apparatus 10, the slope 190A of the operating claw 190 installed on the side of the photo printing apparatus 10 comes into contact with the contact ring 183, so that the spring is moved. When the pin 182 integrated with the contact ring 183 is pushed down against the urging force of the shutter 180, the shutter 180 shown in FIGS. 7 and 8 is opened. In the opened state of the shutter 180, the magazine opening 112A is opened.
Accordingly, the roller roller 184 moves down.

That is, 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.
And is guided by being sandwiched between the drive roller 16 and the nip rollers 80 and 82, the photographic paper P is sandwiched by the drive roller 16 and the nip rollers 80 and 82.
The leading end of the photographic paper P is conveyed so as to be fed into the photographic printing apparatus 10. At this time, the printing paper P
The rubber roller 184B of the roller roller 184 partially contacts the surface side (emulsion surface side) of the. Therefore, not only does the printing paper P always pass through a constant and stable conveyance path, but also the rubber roller 184B of the rotatable roller roller 184 contacts the front side, so that the surface of the printing paper P is scratched or the like. The image quality does not deteriorate.

On the other hand, a cutter 22 composed of a pair of upper and lower blades is installed in the photo printing apparatus 10, and the 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 in the conveying direction of the printing paper P, which is the right side of the cutter 22, the upper surface is horizontal (see FIG. 1).
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 of the lifting roller 54 in the axial direction 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. 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 conveying 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 1/4 of its circumference, and thereafter 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 to be an image printing position which is a position on the optical axis S of the printing light. Transported to G. Then, the printing light from the light source 26 reaches the front surface side of the printing paper P via the optical means 28 and the shutter 32, so that the image recorded on the negative film N is printed on the printing paper P, and this image is printed. The printed portion becomes the printed 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 is formed with a large number of small holes (not shown) over the entire area thereof, and the endless belt 42 is arranged so that the photographic printing paper P is 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 the 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 the 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 via 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 placed on the endless belt 42 but also sucked toward the endless belt 42, so that the photographic printing paper P is reliably 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 1
The leading end side of the photographic printing paper P is fed into the magazine opening 112A while passing between the drive roller 16 and the nip rollers 80 and 82 while passing the guide plate 116 between the two.

In the closed state of the shutter 180, the shutter 180 closes the magazine opening 112A to shield the inside of the paper magazine 12 from light, and is fixed to the shutter 180 as the paper magazine 12 is loaded into the photographic printing apparatus 10. The contact ring 183, which is integrated with the pin 182, is engaged with the operating claw 190 on the side of the photoprinting apparatus 10, so that the shutter 1
Open and close 80.

Further, the roller roller 184 arranged at a position facing the shutter 180 via the conveyance path of the printing paper P.
However, the leaf spring 188 urges the roller 180 toward the shutter 180 side, and as the shutter 180 opens and closes, the roller roller 18
4 moves.

Therefore, the shutter 180 is opened as the paper magazine 12 is loaded into the photoprinting apparatus 10. When the motor 20 rotates in this state, the drive roller 16 rotates clockwise through the drive belt 18. Rotate to
The printing paper P sandwiched by the drive roller 16 and the nip rollers 80 and 82 is conveyed so as to be sent out from the magazine 12. As a result, the shutter 180 and the roller 184
Although the photographic paper P passes outside between the paper magazine 12 and the paper magazine 12, the roller roller 184 is rotatable on the front side of the photographic paper P.
Since they are in contact with each other, the surface is not scratched, for example, by rubbing with the fixed guide. Therefore, when the photographic printing paper P is sent out from the inside of the paper magazine 12 while the inside of the paper magazine 12 is shielded from light, the shutter 180 and the roller 184 guide the photographic printing paper P without scratches on the photographic paper P. be able to.

That is, by disposing the roller roller 184 at a position facing the shutter 180, the shutter 18
0 and the roller roller 184 can guide the photographic printing paper P in the thickness direction when the photographic printing paper P is conveyed, and it is not necessary to provide a guide member or the like. Therefore, the number of parts can be reduced and the manufacturing cost can be reduced.

Thereafter, the photographic printing paper P sent to the photographic printing apparatus 10 side is cut into a predetermined length by the cutter 22 arranged near the paper magazine 12. Accordingly, 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 rewinding of the printing paper P at the time of replacement of the paper magazine 12 is possible. It has become possible to reduce the amount and the amount of withdrawal.

Further, the cut photographic paper P moves 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.

Although the elastic member is a leaf spring in this embodiment, it may be another type of spring or an elastic member made of other material such as rubber. Alternatively, the elastic member such as a leaf spring may not be used, and the member may be biased by its own weight.

On the other hand, instead of the comb-shaped roller roller 184, the guide roller may be a guide roller having a wide roller portion and integrally formed. Further, the number of roller rollers 184 is not a pair but is 1 There may be a book or a plurality of three or more.

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

[0054]

As described above, the shutter structure of the magazine of the present invention is excellent in that it can guide the photographic paper when the photographic paper is sent out from the paper magazine while achieving the light shielding in the paper magazine. Have the effect.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a photographic printing apparatus in which an embodiment of a magazine shutter structure according to the present invention is adopted.

FIG. 2 is a side view of a paper magazine to which an embodiment of the shutter structure of the magazine according to the present invention is adopted, showing the opened state of the paper magazine.

FIG. 3 is a side view of a paper magazine adopting one embodiment of the shutter structure of the magazine according to the present invention, and is a view showing a closed state of the paper magazine.

FIG. 4 is a partially cutaway rear view of a paper magazine adopting an embodiment of the magazine shutter structure according to the present invention, showing a closed state of the paper magazine.

FIG. 5 is an exploded perspective view of a shutter portion of a paper magazine that employs an embodiment of the magazine shutter structure according to the present invention.

FIG. 6 is a schematic cross-sectional view of a main part of a paper magazine adopting an embodiment of the shutter structure for a magazine according to the present invention, showing the shutter closed state.

FIG. 7 is a schematic cross-sectional view of a main part of a paper magazine adopting an embodiment of the shutter structure for a magazine according to the present invention, showing an open state of the shutter.

FIG. 8 is a front view of a paper magazine to which an embodiment of the shutter structure for a magazine according to the present invention is applied, showing the opened state of the shutter.

[Explanation of symbols]

10 Photo printing equipment 12 Paper Magazine 16 drive roller 80 nip rollers 82 Nip roller 112 magazine body 180 shutters 182 pin 183 abutment ring 184 Corolla 188 leaf spring P photographic paper

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Claims (3)

(57) [Claims] 1. A magazine in which a long-sized photosensitive material is stored, and a conveyance path of the photosensitive material from the magazine is arranged in the magazine so that it can be opened and closed, and the inside of the magazine is shielded from light when the conveyance path is closed. The shutter is rotatably arranged at a position facing the shutter via a photosensitive material conveyance path, and is urged toward the shutter so as to move integrally with the shutter in association with the opening / closing operation of the shutter. A shutter structure for a magazine, comprising: a guide roller. 2. A magazine in which a long-sized photosensitive material is stored, and a photosensitive material conveyance path from the magazine is arranged in the magazine so as to be openable and closable, and the inside of the magazine is shielded from light when the conveyance path is closed. A shutter, a shutter operation member that is fixed to the shutter and that engages with an apparatus main body side that processes the photosensitive material to open and close the shutter, and is rotatable to a position facing the shutter via a photosensitive material transport path. A guide roller disposed on the shutter side, and an elastic member that abuts the guide roller and biases the guide roller toward the shutter so as to move the guide roller in accordance with the opening / closing operation of the shutter. Characteristic magazine shutter structure. 3. The shutter structure for a magazine according to claim 1, wherein the opening / closing operation of the shutter is in a thickness direction of the photosensitive material.