JP2009107793A - Conveying mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To discharge a medium by aligning the direction of the medium without damaging the medium. <P>SOLUTION: The conveying mechanism includes a drive roller 91 held on a rotary shaft 90a in the vicinity of a discharge port, a pressure contact roller 94 which is held on the rotary shaft 90b and holds a developing paper with the drive roller 91, pushing members 92, 93 which are held on the rotary shaft 90a and impart the pushing force by an elastic force with respect to the developing paper held by the drive roller 91 and the pressure contact roller 94, and a conveyer mechanism which conveys the developing paper discharged from the discharge port to the crossing direction to the discharge direction. An upstream side pushing member 92a is disposed at the position corresponding to the conveying direction downstream side at the conveyer mechanism than the upstream side pushing member 93a, and the downstream side pushing member 92b is disposed at the position corresponding to the conveying direction downstream side at the conveyer mechanism than the downstream side pressing member 93b. The pushing force of the pushing member 92 is larger than the pushing force of the pushing member 92. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a transport mechanism that discharges a medium from a discharge port and transports the medium discharged from the discharge port to a predetermined location.

  In a photographic processing apparatus, development, bleach-fixing, stability, and other processing are performed while conveying a photosensitive material (hereinafter referred to as a medium) such as film or photographic paper, and then the medium is moved downstream in the conveyance direction of the photographic processing apparatus. Feed into the drying equipment that is placed. Then, in the drying device, the dried medium is discharged from the discharge port and placed on the conveyor, and then conveyed to the sorter by the conveyor.

  In the above-described drying apparatus, generally, a dried medium is discharged from a discharge port by a driving roller and a pressure roller that sandwiches the medium between the driving roller (see, for example, Patent Document 1). . In this patent document 1, the medium is surely secured by extruding the surface opposite to the emulsion surface of the medium conveyed by a pair of sandwiching rollers (drive roller, pressure roller) with elastic blades that rotate with the rotation of the sandwiching roller. It is conveyed to the conveyor.

  However, in the conventional drying apparatus as disclosed in Patent Document 1, the dried medium is curled after the development process, and the curled medium is placed on the conveyor from the discharge port. In this case, the curled upper end is caught on a discharge port or a component of the transport mechanism, and when it is transported by the conveyor, it rotates on the conveyor, thereby deteriorating the alignment of the medium. .

Therefore, a technique has been proposed in which the direction of the medium is aligned when the medium discharged from the discharge port of the drying device is discharged onto the conveyor (see, for example, Patent Document 2). In this Patent Document 2, the medium is tilted by providing an adjusting means for making the carry-out amount of the medium discharged from the discharge port on the front side in the conveyance direction larger than the carry-out amount on the rear side in the conveyance direction on the conveyor. In this state, the front side of the medium is prevented from being caught by the discharge port and the components of the transport mechanism so that the medium does not rotate on the conveyor.
JP 2002-182361 A JP 2005-8373 A

  However, in the drying apparatus disclosed in Patent Document 2, the medium is discharged in an inclined state by changing the carry output applied to the front side and the rear side of one medium, so that the medium is removed. There is a problem of being damaged.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a transport mechanism capable of aligning and ejecting a medium without damaging the medium.

Means for Solving the Problems and Effects of the Invention

  In order to achieve the above object, a transport mechanism according to the present invention is a transport mechanism that discharges a medium from a discharge port and transports the medium discharged from the discharge port to a predetermined location. A first conveying roller held on the rotating shaft of the first roller, a second conveying roller held on the second rotating shaft and sandwiching the medium with the first conveying roller, and the first rotating shaft And a plurality of push-out members each having a plurality of elastic blades for applying a push-out force by an elastic force to the medium sandwiched between the first carry roller and the second carry roller, and a discharge port And a conveyor mechanism for conveying the medium discharged from the medium in a direction crossing the discharge direction. The plurality of extruding members are one or a plurality of first extruding members and one or a plurality of second extruding members arranged at positions corresponding to the downstream side in the transport direction of the conveyor mechanism with respect to the first extruding member. The pushing force of the second pushing member is larger than the pushing force of the first pushing member.

  In the transport mechanism according to the present invention, as described above, the pushing force of the second pushing member is larger than the pushing force of the first pushing member, so that the portion corresponding to the downstream side in the carrying direction of the medium conveyor mechanism. The applied moment becomes larger than the moment applied to the portion corresponding to the upstream side in the transport direction, and the medium can be discharged in an inclined state. As a result, since the front side of the medium is not caught by the discharge port or the components of the transport mechanism, the medium does not rotate on the conveyor and the direction of the medium can be aligned. At this time, by changing the pushing force applied to the medium by the elastic blades of the pushing member, the medium can be discharged in an inclined state, so that the influence on the medium is small and the medium can be prevented from being damaged. .

  In the transport mechanism, preferably, the pushing force of the pushing member differs depending on the contact area between the plurality of elastic blades provided on the pushing member and the medium. Therefore, by making the contact area between the elastic blades of the second pushing member and the medium larger than the contact area between the elastic blades of the first pushing member and the medium, the pushing force of the second pushing member can be easily increased. The pushing force of the first pushing member can be made larger.

  In the transport mechanism, preferably, the pushing force of the pushing member differs depending on the density of the plurality of elastic blades provided on the pushing member. Therefore, by making the density of the elastic blades of the second pushing member larger than the density of the elastic blades of the first pushing member, the pushing force of the second pushing member can be easily increased by pushing the first pushing member. Can be greater than force.

  In the transport mechanism, preferably, the pushing force of the pushing member differs depending on the material of the plurality of elastic blades provided on the pushing member. Therefore, by configuring the elastic blade of the second push member with a material having a larger elastic force than the elastic blade of the first push member, the push force of the second push member can be easily set to the first push member. It can be made larger than the pushing force of the member. Thus, if the material of the elastic blade is different, even if the contact area between the elastic blade of the first push-out member and the medium and the contact area between the elastic blade of the second push-out member and the medium are the same, The pushing force of the second pushing member can be made larger than the pushing force of the first pushing member. In other words, the elastic force of the second extrusion member can be made larger than the extrusion force of the first extrusion member by using elastic blades of different shapes but the same shape. As a result, the elastic blade can be easily formed.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram of a photographic processing apparatus having a drying unit equipped with a transport mechanism according to an embodiment of the present invention.

  A photographic processing apparatus 1 having a drying unit equipped with a transport mechanism according to the present embodiment is a photographic processing apparatus employing a digital scanning exposure method using a laser beam, as shown in FIG. And a printing unit 50 and a drying unit 60.

  The image input unit 20 reads an image recorded on each frame of the developed film, performs a digital conversion process on the read image data, reads a digital image data recorded on an image recording medium such as a flash memory, and the like. Various processes are performed, and the read image data is transmitted to the printing unit 50. In the printing unit 50, mainly photographic paper (medium) 2 is subjected to processing such as exposure processing, development processing, and bleach-fixing processing based on the image data received from the image input unit 20, and is sent to the drying unit 60. It is done. In the drying unit 60, the photographic paper 2 discharged from the printing unit 50 is dried, and the photographic paper 2 discharged from the discharge port is sorted for each order.

  As shown in FIG. 1, the image input unit 20 includes a monitor 21, a keyboard 22, a mouse 23, a computer unit 30, and a scanner 40.

  On the monitor 21, a GUI (Graphical User Interface) for various controls and an image to be processed are displayed, and various information regarding the photographic processing apparatus 1 is displayed and notified to the operator. The keyboard 22 and the mouse 23 are used for performing an input operation on the photo processing apparatus 1.

  The computer unit 30 is connected to the monitor 21, the keyboard 22, and the mouse 23, and controls the operation of each unit included in the scanner 40 and the print unit 50, and the input / output of image data. The image data stored in the image recording medium such as is read through a media reader (not shown).

  In the scanner 40, an image reading process recorded on each frame of the developed film and a digital conversion process on the read image data are performed, and the read image data is transmitted to the computer unit 30.

  As shown in FIG. 1, the print unit 50 includes two photographic paper magazines 51, a sheet cutter 52, a back print unit 53, a print exposure unit 54, a pressure-conveying conveyance roller pair 57, and a chucker-type conveyance unit 58. And a treatment tank unit 55 and a squeeze rack 59.

  The two photographic paper magazines 51 are provided inside the printing unit 50, and each roll-shaped photographic paper 2 is accommodated one by one, and a necessary amount of the photographic paper 2 is appropriately drawn out by the pressure-conveying roller pair 57. The sheet cutter 52 is disposed on the downstream side of the plurality of press-contact conveyance roller pairs 57 that draw out the photographic paper 2 from the photographic paper magazine 51, and cuts the photographic paper 2 drawn out from the photographic paper magazine 51 into a desired print size. .

  The back print unit 53 is disposed on the downstream side of the sheet cutter 52, and print processing information such as color correction information and a frame number is provided on the back side of the photographic paper 2 cut to a desired print size by the sheet cutter 52. To print.

  The print exposure unit 54 is arranged so as to be adjacent to the chucker type conveyance unit 58 arranged on the downstream side of the back print unit 53, and is on the surface side of the photographic paper 2 cut to a desired print size or a test print size. Next, the image is exposed.

  The pressure-conveying and conveying roller pair 57 pulls out the roll-shaped photographic paper 2 stored in the photographic paper magazine 51 disposed inside the printing unit 50, and the chucker-type conveying unit 58 prints the printed image cut to a desired size or the like. The paper 2 is conveyed at a conveyance speed corresponding to various processes. The pressure-conveying roller pair 57 is configured by combining two rollers, and presses the photographic paper 2 while the two rollers rotate, so that the photographic paper 2 passes through the gap between the two rollers and moves downstream. Be transported. The chucker-type transport unit 58 transports the photographic paper 2 that has been cut to a desired size or the like by pinching the downstream end (front end side).

  The processing tank unit 55 is arranged adjacent to a plurality of pressure-contacting roller pairs 57 arranged on the downstream side of the print exposure unit 54, and stores a color developing tank 55a for storing the color developing processing liquid and a bleach-fixing processing liquid. It has a bleach-fixing tank 55b for storing and a stable processing tank 55c for storing a stable processing liquid. The exposed photographic paper 2 is conveyed through the color developing tank 55a, the bleach-fixing tank 55b, and the stabilization processing tank 55c in this order, so that a desired image is printed on the photographic paper. 2 formed on the surface.

  The squeeze rack 59 is disposed between the processing tank unit 55 and the drying unit 60, and has a function of removing moisture on the surface of the photographic paper 2 attached during conveyance of the processing tank unit 55.

  The drying unit 60 is disposed on the downstream side of the processing tank unit 55, and includes a transport unit 61 that transports the photographic paper 2 that has been processed, and a heating unit 62 that heats the photographic paper 2 transported by the transport unit 61. (See FIG. 3), a transport mechanism 80 for transporting the photographic paper 2 dried by the heating unit 62, and a sorter (not shown) for sorting the photographic paper 2 transported by the transport mechanism 80 in order units. have. The drying unit 60 of the present embodiment blows warm air generated by a blower or the like onto the photographic paper 2 that has been immersed in various processing liquids and processed in the processing tank unit 55 and then passed through the squeeze rack 59. The photographic paper 2 is dried. Thereafter, the dried photographic paper 2 is transported in the direction of the sorter via the transport mechanism 80.

  Next, a schematic configuration of the drying unit 60 of the photographic processing apparatus 1 will be described with reference to FIGS. FIG. 2 is a sectional view of a drying unit provided in the photographic processing apparatus of FIG. 3 is a cross-sectional view taken along line AA in the drying unit of FIG. 2, and FIG. 4 is a cross-sectional view taken along line BB in the drying unit of FIG. FIG. 5 is a plan view of the transport mechanism mounted in the drying unit. FIG. 6 is a perspective view showing the nipping and conveying roller mechanism in the drying section.

  As shown in FIG. 2, the transport unit 61 has two transport roller pairs 63 and 64, a turn roller 65, a first roller 66, and a second roller from the upstream side in the transport direction toward the downstream side in the transport direction. A roller 67, a plurality of conveyance roller pairs 70, and a turn mechanism 71 are provided.

  The two conveyance roller pairs 63 and 64 are each composed of two drive rollers arranged with a gap serving as a conveyance path for the photographic paper 2. The photographic paper 2 sent to the drying unit 60 is conveyed to a turn roller 65 on the downstream side in the conveying direction by a pair of conveying rollers 63 and 64 that are rotationally driven. The surfaces of the conveyance roller pairs 63 and 64 are covered with, for example, a foam material or cloth.

  The turn roller 65 is for changing the conveyance direction of the photographic paper 2 and conveying it downstream. As shown in FIG. 2, the turn roller 65 changes the conveyance direction of the photographic paper 2 downstream of the conveyance roller pair 64 in the conveyance direction. Change vertically upwards. The turn roller 65 is a roller having a diameter larger than that of the first roller 66 and the second roller 67, and is rotationally driven by a drive unit (not shown). In the drying unit 60, a turn roller 65 is provided in the drying unit 60 and can be dried while changing the conveyance direction of the photographic paper 2. Therefore, compared with a drying device that performs a drying process while conveying the photographic paper 2 only in one direction, The drying apparatus can be reduced in size.

  The first roller 66 is used as a pair with the turn roller 65 to change the conveyance direction of the photographic paper 2, and between the turn roller 65 and the photographic paper 2 conveyed from the upstream side in the conveyance direction. It arrange | positions closely so that the clearance gap which a front-end | tip enters may be formed.

  The second roller 67 is paired with the turn roller 65 to change the conveyance direction of the photographic paper 2 and is conveyed between the second roller 67 and the turn roller 65 at the downstream side of the first roller 66 in the conveyance direction. The printing paper 2 conveyed from the upstream side in the direction is arranged close to each other so as to form a gap into which the leading edge of the printing paper 2 enters.

  The plurality of conveyance roller pairs 70 are for conveying the photographic paper 2 that has passed through the gap between the turn roller 65 and the second roller 67 upward in the vertical direction. The surfaces of the conveyance roller pair 70 are covered with, for example, a foam material, a cloth, or the like.

  The turn mechanism 71 changes the conveyance direction of the photographic paper 2 and conveys it downstream, and above the plurality of conveyance roller pairs 70, the conveyance direction of the photographic paper 2 is substantially horizontal (conveying roller pair). Direction to 73). The turn mechanism 71 has a large-diameter roller 71a and a plurality of small-diameter rollers 71b, and the photographic paper 2 passes through the gaps between the rollers 71a and 71b. A guide piece 72 is provided between the plurality of small-diameter rollers 71b to guide the photographic paper 2 that has passed between the rollers 71a and 71b to the downstream roller 71b.

  The guide piece 72 is a plate-like member, and the surface thereof is formed in an uneven shape. Thus, the surface of the photographic paper 2 is smoothly conveyed (without being caught) while being in contact with the guide piece 72. Here, the end of the guide piece 72 on the downstream side in the conveyance direction is formed in a flat shape. Therefore, the vicinity of the rear end portion of the photographic paper 2 is prevented from coming into contact with the guide piece 72 and being damaged.

  As shown in FIGS. 3 and 4, the heating unit 62 includes a heater unit 74 that dries the photographic paper 2 being conveyed, a blower 75, and a heating chamber 76. The heating chamber 76 and the transport unit 61 are partitioned by a perforated duct 77.

  The heater unit 74 and the blower 75 are arranged in parallel on one side of the drying unit 60. The heater unit 74 is disposed in the upstream portion on the suction side of the blower 75 so that most of the sucked air passes through while efficiently heating the sucked air, and has a length substantially equal to that of the blower 75. It is formed so that most of the air sucked by the blower 75 can be heated to warm air.

  In the heating unit 62 of the present embodiment, the air sucked from the drying unit 60 is heated by the blower 75 through the heater unit 74 to be heated, and passes through the heating chamber inlet 78 to be heated. 76 is sent within. The hot air sent into the heating chamber 76 is blown toward the photographic paper 2 conveyed upward by the conveying roller pair 70 from each hole 79 provided in the perforated duct 77. As a result, the photographic paper 2 is dried in the drying unit 60. Here, the heating chamber 76 is formed so that its longitudinal sectional area becomes smaller as the distance from the blower 75 increases. Thereby, the wind pressure in the heating chamber 76 becomes uniform, and the flow rate of the warm air passing through the hole 79 of the perforated duct 77 can be made uniform.

  The transport mechanism 80 transports the photographic paper 2 dried by the heating unit 62 described above to the sorter after being discharged from the discharge port 68 (see FIG. 2). As shown in FIGS. 5 and 6, the transport mechanism 80 includes a sandwiching transport roller mechanism 90 and a conveyor mechanism 56. In the transport mechanism 80, the standard-size photographic paper 2 is discharged in two rows onto the conveyor mechanism 56 through the discharge port 68 by the nipping / conveying roller mechanism 90, and is transported in the direction of the sorter by the conveyor mechanism 56. . Note that the photographic processing apparatus 1 of the present embodiment can print large photographic paper, and the transport mechanism 80 can discharge the large photographic paper one by one.

  The nipping / conveying roller mechanism 90 is for discharging the photographic paper 2 dried by the heating unit 62 onto the conveyor mechanism 56 from the discharge port 68 (see FIG. 2). The nipping / conveying roller mechanism 90 includes three driving rollers 91, four pushing members 92 and four pushing members 93 held by the rotating shaft 90 a in the vicinity of the discharge port 68, and three pressing rollers held by the rotating shaft 90 b. 94. The three driving rollers 91 and the three pressing rollers 94 are arranged so as to face each other, and the pressing roller 94 comes into contact with the driving roller 91 with a predetermined pressure to sandwich the photographic paper 2.

  The rotating shaft 90a includes two pushing members 93 (hereinafter referred to as upstream pushing member 93a) in order from the conveying direction (E direction) upstream in the conveyor mechanism 56 to the conveying direction downstream. Extrusion member 92 (hereinafter referred to as upstream extrusion member 92a), two extrusion members 93 (hereinafter referred to as downstream extrusion member 93b), and two extrusion members 92 (hereinafter referred to as downstream extrusion member 92b) ) Is arranged. That is, the two upstream extrusion members 92a are disposed at positions corresponding to the downstream side in the transport direction of the conveyor mechanism 56 relative to the two upstream extrusion members 93a, and the two downstream extrusion members 93b. Also, two downstream push-out members 92b are disposed at positions corresponding to the downstream side in the transport direction of the conveyor mechanism 56.

  Here, in the present embodiment, the pushing members 92 and 93 are provided in order to give a pushing force by an elastic force to the photographic paper 2 sandwiched between the driving roller 91 and the pressure roller 94. The pushing members 92 and 93 are provided with a plurality of elastic blades 95 and 96 that are inclined in the rearward direction of the rotating shaft 90a (D direction (see FIG. 6)), respectively. The elastic blades 95 and 96 are gradually restored when the rear end of the photographic paper 2 is conveyed by the driving roller 91 and the pressure roller 94 after being pressed by the photographic paper 2 and falling down as the rotary shaft 90a rotates. Then, the trailing edge of the photographic paper 2 is pushed out by the pushing force accompanying the restoration. The density of the elastic blades 95 provided on the extrusion member 92 is larger than the density of the elastic blades 96 provided on the extrusion member 93. Specifically, the extrusion member 92 is provided with 24 elastic blades 95, and the extrusion member 93 is provided with 12 elastic blades 96. As a result, the contact area of the elastic blade 95 of the extrusion member 92 with respect to the photographic paper 2 becomes larger than the contact area of the elastic blade 96 of the extrusion member 93 with respect to the photographic paper 2, and the extrusion member 92 prints compared to the extrusion member 93. A large pushing force is applied to the paper 2.

  In the nipping / conveying roller mechanism 90 having the above-described configuration, the two rows of photographic paper 2 discharged from the discharge port 68 are pushed out to the downstream side in the conveying direction of the conveyor mechanism 56 in the photographic paper 2 by the action of the pushing members 92 and 93. The force becomes larger than the pushing force applied to the upstream side in the conveying direction. Along with this, the moment applied to the portion corresponding to the downstream side in the transport direction of the conveyor mechanism 56 of the photographic paper 2 becomes larger than the moment applied to the portion corresponding to the upstream side in the transport direction, as shown in FIG. The photographic paper 2 is placed on the conveyor mechanism 56 in an inclined state. Further, the nipping / conveying roller mechanism 90 can discharge not only the two rows of photographic paper 2 but also large photographic paper (not shown). Even in this case, the moment applied to the portion corresponding to the downstream side in the conveyance direction of the large-size photographic paper conveyor mechanism 56 (the moment generated by the downstream side extrusion members 92b and 93b) is applied to the portion corresponding to the upstream side in the conveyance direction ( Larger than the moment by the upstream pushing members 92a and 93a), and the large photographic paper is placed on the conveyor mechanism 56 in an inclined state.

  The conveyor mechanism 56 is disposed above the print unit 50 and is perpendicular to the discharge direction (F direction (see FIG. 5)) of the photographic paper 2 discharged from the discharge port 68 by the nipping and conveying roller mechanism 90. (E direction), that is, for conveying in the direction of the sorter. The sorter has a plurality of trays arranged in the vertical direction on the front side of the print unit 50, and distributes the photographic paper 2 conveyed by the conveyor mechanism 56 to each tray, for example, in order units.

  In the present embodiment, as described above, the pushing force of the pushing member 92 (upstream pushing member 92a, downstream pushing member 92b) is greater than the pushing force of the pushing member 93 (upstream pushing member 93a, downstream pushing member 93b). Therefore, the moment applied to the portion corresponding to the downstream side in the transport direction of the conveyor mechanism 56 of the photographic paper 2 becomes larger than the moment applied to the portion corresponding to the upstream side in the transport direction, and the photographic paper 2 is tilted. It becomes possible to discharge. As a result, since the front side of the photographic paper 2 is not caught by the components of the discharge port 68 and the drying unit 60, the photographic paper 2 does not rotate on the conveyor and the direction of the photographic paper 2 can be aligned. At this time, by changing the pushing force applied to the photographic paper 2 by the elastic blades 95 and 96 of the pushing members 92 and 93, the photographic paper 2 can be discharged in an inclined state, so that the influence on the photographic paper 2 is small. The photographic paper 2 can be prevented from being damaged.

  As mentioned above, although embodiment of this invention was described based on drawing, it should be thought that a specific structure is not limited to these embodiment. The scope of the present invention is shown not only by the above description of the embodiments but also by the scope of claims for patent, and further includes all modifications within the meaning and scope equivalent to the scope of claims for patent.

  For example, in the above-described embodiment, the example in which the transport mechanism is mounted on the drying unit has been described. However, the present invention is not limited to this, and can be mounted on other than the drying unit.

  In the above embodiment, the two upstream side extrusion members 93a, the two upstream side extrusion members 92a, the two downstream side extrusion members 93b, from the upstream side toward the downstream side in the transport direction of the conveyor mechanism 56, The example in which two sets of the same type of extrusion members are arranged in the order of the two downstream side extrusion members 92b has been described. However, the present invention is not limited to this, and the nipping and conveying roller mechanism according to the modification shown in FIG. As in 190, the upstream push member 193a, the upstream push member 192a, the downstream push member 193b, and the downstream push member 192b are arranged one by one in this order from the upstream side to the downstream side in the transport direction of the conveyor mechanism. May be. Moreover, you may arrange | position the same kind of extrusion member as a set of 3 or more.

  Moreover, although the said embodiment demonstrated the example which makes an extrusion force different using the extrusion member from which the density of an elastic blade | wing differs, this invention is not limited to this, Extrusion force of an extrusion member is made into the some provided in it. It is also possible to make it different depending on the material of the elastic blade. Specifically, as in the sandwiching and conveying roller mechanism 290 according to the modification shown in FIG. 8, an extrusion member having the same density (number of elastic blades) of the elastic blades is prepared, and the elastic blades 295 of the upstream extrusion member 292a are disposed upstream. The elastic member 293a is made of a material having a larger elastic force than the elastic blade 296 of the side pushing member 293a, and the elastic blade 297 of the downstream pushing member 292b is made of a material having a larger elastic force than the elastic blade 298 of the downstream pushing member 293b. You may do it. In this case, the pushing force of the elastic blade 295 is larger than the pushing force of the elastic blade 296, and the pushing force of the elastic blade 297 is larger than the pushing force of the elastic blade 298. The moment applied to the portion corresponding to the side becomes larger than the moment applied to the portion corresponding to the upstream side in the transport direction, and the photographic paper can be discharged in an inclined state.

  In the above-described embodiment, an example in which the upstream side extrusion members 92a and 93a and the downstream side extrusion members 92b and 93b are provided to convey two rows of photographic paper has been described. However, the present invention is not limited to this. When only one sheet of photographic paper is transported or when three or more photographic papers are transported at the same time, it is only necessary to provide extrusion members having different extrusion forces in each row.

It is a schematic block diagram of the photographic processing apparatus which has a drying part carrying the conveyance mechanism which concerns on embodiment of this invention. It is sectional drawing of the drying part with which the photographic processing apparatus of FIG. 1 was equipped. It is the sectional view on the AA line in the drying part of FIG. FIG. 3 is a cross-sectional view taken along line BB in the drying unit of FIG. 2. It is a top view of the conveyance mechanism mounted in the drying part. It is the perspective view which showed the clamping conveyance roller mechanism in a drying part. It is the perspective view which showed the modification of the clamping conveyance roller mechanism shown in FIG. It is the perspective view which showed the modification of the clamping conveyance roller mechanism shown in FIG.

Explanation of symbols

1 Photo processing device 2 Printing paper (medium)
56 Conveyor mechanism 68 Discharge port 80 Transport mechanism 90, 190, 290 Nipping and transporting roller mechanism 90a, 90b Rotating shaft 91 Drive roller 92, 93 Extrusion member 92a, 192a, 292a Upstream extrusion member 92b, 192b, 292b Downstream extrusion member 93a , 193a, 293a Upstream extrusion member 93b, 193b, 293b Downstream extrusion member 94 Pressure roller 95, 96 Elastic blade

Claims (4)

A transport mechanism for discharging the medium from a discharge port and transporting the medium discharged from the discharge port to a predetermined location;
A first transport roller held by a first rotating shaft in the vicinity of the discharge port;
A second conveyance roller that is held by a second rotation shaft and sandwiches the medium with the first conveyance roller;
Each of the plurality of elastic blades is provided on the first rotation shaft and applies elastic force to the medium sandwiched between the first conveyance roller and the second conveyance roller. A plurality of extruded members;
A conveyor mechanism that conveys the medium discharged from the discharge port in a direction intersecting the discharge direction;
The plurality of pushing members are
One or more first extrusion members;
Including one or a plurality of second extruding members disposed at positions corresponding to the downstream side in the transport direction of the conveyor mechanism with respect to the first extruding member,
The transport mechanism according to claim 1, wherein the pushing force of the second pushing member is larger than the pushing force of the first pushing member.   2. The transport mechanism according to claim 1, wherein the push-out force of the push-out member varies depending on a contact area between the plurality of elastic blades provided on the push-out member and the medium.   3. The transport mechanism according to claim 1, wherein the push-out force of the push-out member varies depending on the density of the plurality of elastic blades provided on the push-out member.   3. The transport mechanism according to claim 1, wherein the push-out force of the push-out member varies depending on a material of the plurality of elastic blades provided on the push-out member.

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