JP4570060B2 - Transfer material processing apparatus in paper discharge device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a transfer material processing apparatus in a paper discharge device for stacking transfer materials discharged from an image forming apparatus such as a copying machine or a printer, and in particular, discharges a stacking table loaded with discharged transfer materials with a carriage. The present invention relates to a transfer material processing apparatus that can be taken out from the apparatus main body.
[0002]
[Prior art]
2. Description of the Related Art There is known a paper discharge device that feeds images one by one to an image forming apparatus or an image forming unit, discharges an image-formed transfer material, and stacks the transfer material so that one end side of the transfer material is aligned on a stacking base.
For example, the transfer material on which the image is formed is sucked and conveyed by the suction belt on the upper surface of the transfer material discharged from the discharge port located at a predetermined position, and sequentially stacked on a stacking base provided in the paper discharge device body. When the position of the uppermost surface of the sheet is changed, the loading table is moved downward by the moving means to load a large number of transfer materials.
There are cases where the stacked transfer materials are several thousand sheets, and the weight is several tens of kilograms. The loaded transfer material is taken out from the apparatus main body, placed on a carriage, and carried to an arbitrary position outside.
[0003]
On the other hand, when a small number of transfer materials are loaded on the loading table, there is no need to change the loaded transfer materials onto the carriage, but the operator takes out the transfer material from the narrow space inside the paper discharge device. ing.
[0004]
[Problems to be solved by the invention]
As described above, it is necessary to transfer the discharged transfer material from the loading table in the paper discharge device to the carriage, or to take a small number of transfer materials on the loading table in the paper discharge device, and it is complicated. Work, which puts a burden on the operator.
[0005]
The present invention has been made in view of the above-described problems, and a transfer material processing apparatus capable of releasing a transfer material discharged to a loading table with a simple configuration and one-touch and carrying it out of a paper discharge device. It is an issue to provide.
[0006]
[Means for Solving the Problems]
In order to solve the above problem, a stacking base provided in the paper discharge device main body for sequentially collecting the transfer materials discharged from the discharge port, and a stacking amount on the stacking base placed at a predetermined position. And a moving means for moving the sheet from the predetermined position to the first position or the second position in the vertical direction, and a carriage that can be attached to and detached from the paper discharge device for placing the transfer material accumulated on the loading table. The moving means includes a slide member that exposes the moving means to the outside from the paper discharge apparatus main body in a direction transverse to the discharge direction of the transfer material, and a first lock member that locks the moving means to the paper discharge apparatus main body. And the link member provided on the loading table is connected to the first lock member only when the loading table is located at the first position of the moving means, and the link member is further operated to operate the first The lock member is released from the paper discharge device and moved together with the loading platform. There drawn by the sliding member, characterized in that withdrawing the carriage from the paper output device when the mounting base is positioned in the second position.
[0007]
Further, the moving means has a magnet for attracting the loading table by magnetic force, and moves the moving means to a position lower than a second position of the carriage to separate the loading table from the moving means. Features.
[0009]
In such a configuration, when a large number of transfer materials are stacked on the loading table, the loading table is separated from the paper discharge device and placed on the cart, the lock is released from the paper discharge device, and the cart is pulled out. Can be carried out of the paper discharge device. Further, in the case of a small number of transfer materials, the transfer means can be removed by sliding the moving means on which the loading table is placed to expose it from the paper discharge device main body.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
A preferred embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic diagram illustrating an example of an image forming apparatus 1. The image forming apparatus 1 includes a paper feeding unit 2, an image forming unit 3, and a paper discharging unit 4.
The sheet feeding unit 2 is loaded on a plurality of stackers 5a and 5b according to the size and type of transfer material to be used, and the transfer material selected by the operator is fed to the image forming unit one by one by a sheet feeding means such as a suction belt 6. Paper is fed to the image forming unit 3.
[0011]
The image forming unit 3 includes a well-known image forming unit. The image forming unit 3 forms an image on the transfer material sent from the paper feeding unit 2 and performs, for example, uniform charging around the photosensitive drum 7. A corona charger 8, an exposure device 9 such as an LED array that exposes image data onto the photosensitive drum 7, and a developing device 10 that develops the electrostatic latent image formed on the photosensitive drum 7 by the exposure device 9 with a developer. A transfer corona discharger 11 for transferring the toner image developed on the photosensitive drum 7 to the transfer material, a separation corona discharger 12 for peeling the transfer material from the photosensitive drum 7, and a blade for removing the toner remaining after the transfer. And the like, an eraser lamp 14 for neutralizing the surface of the photosensitive drum 7, and a fixing device 15 for fixing a transfer material carrying an unfixed toner image.
[0012]
The transfer material on which the image is formed in the paper discharge unit 4 is discharged to the tray 16 positioned above by switching the switching means in a small number of prints. The tray 16 extends obliquely upward from the lower position of the discharge port 17, and the rear end of the output transfer material is brought into contact with the lower wall of the discharge port 17 to align the front end.
Further, when printing a large number of sheets, the transfer materials are stacked so as to be stacked toward the stacking base 20 of the transfer material processing device 19 in the paper discharge device 18 positioned below by switching the switching means.
[0013]
2 is a schematic side view of the transfer material processing device 19 in the paper discharge device 18, FIG. 3 is a schematic front view of the transfer material processing device 19 in the paper discharge device 18, and FIG. A schematic top view is shown. The transfer material processing device 19 in the paper discharge device 18 places the stacking base 20 on which the transfer materials discharged from the discharge port 21 located at a predetermined position are sequentially stacked, and the stacking base 20 at the first position. A moving means 22 for moving the transfer material in the vertical direction according to the load amount of the transfer material, and the loading base 20 is separated from the moving means 22 and placed at the second position, and is detachably attached to the paper discharge device 18 . And a carriage 23.
[0014]
The loading table 20 has a substantially rectangular shape and a flat surface, and has a size larger than that of the maximum size transfer material. A plurality of Teflon tapes are affixed to the upper surface of the loading table 20 along the discharge direction of the transfer material in order to smoothly move the transfer material to be loaded. A hole 24 and a long hole 25 for positioning the moving means 22 at the first position are provided on the lower surface of the loading table 20, and engage with a protrusion 27 provided on a holding member 26 (to be described later) constituting the moving means 22. Is positioned. The longitudinal direction of the hole 24 and the long hole 25 is provided in a direction in which the stacking base 20 is parallel to the transfer material discharge direction, and the protrusion 27 is provided in parallel to the transfer material discharge direction. Thus, the parallelism of the loading table 20 is maintained even if the projection 27 is engaged with any portion of the long hole 25.
[0015]
Further, the loading table 20 has a hole 29 and a long hole 30 for positioning at a predetermined position of a mounting portion 28 of a carriage 23 described later. And it engages with the protrusion 31 provided in the mounting part 28, and is positioned.
[0016]
The moving means 22 includes a holding member 26 that holds the loading table 20, a slide member 32 that slides the holding member 26 horizontally from the paper discharge device, and a lift 33 that moves the loading table 20 up and down.
The holding member 26 is provided with a projection 24 for locking the hole 24 and the long hole 25 provided in the loading table 20, and the loading table 20 is locked to the holding member 26 as the first position.
[0017]
The lift 33 is provided in the main body of the paper discharge device 18 so as to move the slide member 32 connected to the holding member 26 constituting the moving unit 22 in the vertical direction. Nuts 34 are provided at four positions of the slide member 32, and screws 35 that are rotatably provided on the main body side of the paper discharge device 18 are screwed into the nuts 34. A pulley 37 is provided at the tip of each screw 35 in the bottom plate 36, a timing belt 38 is hung, and the screw 35 is driven by driving of a driving means (not shown) so that the position of the uppermost surface of the transfer material is always constant. In this way, the position of the slide member 32 is controlled.
[0018]
The slide member 32 slides the holding member 26 in the horizontal direction together with the loading table 20 by releasing a first lock member 43 to be described later. Preferably, the slide member 32 is an accumulator (slidably movable by combining a plurality of rails). Product name).
[0019]
The carriage 23 is provided detachably with respect to the inside of the paper discharge device 18 so that the stacking table 20 can be placed at the second position on the carriage 23 and removed from the transfer material processing device 19 and carried. Is provided.
[0020]
In the embodiment, the timing belt 38 for simultaneously rotating and driving the screws 35 is stretched in the bottom plate 36 of the transfer material processing apparatus 19 as described above, and the bottom plate 36 is thickened. For this reason, the support portion 41 that supports the carriage 23 is inserted between the bottom plate 36 and the caster 39 that supports the transfer material processing device 19, and the loading table 20 is placed above the bottom plate 36 so as to sandwich the bottom plate 36. The placement portion 28 to be placed is inserted along the guide 42 so as to be positioned below the loading table 20. The support part is provided with a caster 40 so that the carriage 23 can move freely. Reference numeral 69 denotes a fixed leg whose height is adjustable for installing the image forming apparatus horizontally.
[0021]
After the carriage 23 is inserted into the main body of the transfer material processing device 19, the carriage 23 is fixed to the paper discharge device 18 by the second lock member 44. At this time, the lower surface of the placing portion 28 is smoothly fed by the rollers 71 provided on the bottom plate. The second lock member 44 includes a lever 46 that can pivot about a fulcrum 45 provided on the carriage 23 and a protrusion 47 provided on the bottom plate 36, and a hook portion 48 and a protrusion 47 at the tip of the lever 46. Is locked. The second lock member 44 is released by pulling the lever 46 so that the hook portion 48 is removed from the protrusion 47 to release the lock, and the carriage 23 can move.
[0022]
A handle 62 is detachably provided on the carriage 23 so as to be easily moved. When the carriage is pulled out, the tip of the handle 62 is inserted into the mounting hole 63 and pulled out.
In addition, when the strength of the handle 62 is weak, there is a case where the handle 62 is deformed, for example, bent when forcibly pulled. For this reason, providing the second lock member 44 prevents inadvertent pulling.
[0023]
The carriage 23 is provided with a support portion 70 that supports the space between the placement portion 28 and the moving portion 41 and a reinforcing member 49 that reinforces, and as the placement portion 28 is inserted, the placement portion 28 and the support portion 41. A reinforcement member 49 provided between the transfer member and the support member 50 is provided so as to be pivoted about the fulcrum 50 and accommodated in the transfer material processing apparatus 19. As a result, when the carriage 23 is pulled out, the front end roller 68 of the reinforcing member 49 abuts on the mounting portion 28, supports the mounting portion 28 and the moving portion 41, and supports the transfer material stacked by reinforcing both. .
[0024]
Further, a magnet 51 is provided on the upper surface of the holding member 26 of the moving means 22 to attract the loading table 20 with a magnetic force. The loading platform 20 formed of an iron plate or the like by the magnet 51 is attracted and held by the action of magnetic force. When separating the loading table 20, the moving means 22 is moved to a position lower than the second position of the carriage 23 to release the adsorption by the magnet 51 and separate the loading table 20 from the moving means 22.
[0025]
Further, the moving unit 22 engages the slide member 32 that exposes the moving unit 22 from the main body of the transfer material processing device 19 in a direction transverse to the discharge direction of the transfer material, and the moving unit 22 on the side wall of the main body of the paper discharge device 18. And a first lock member 43. The first lock member 43 includes a lever 52 provided on the stacking base 20, a link member 53 provided in the stacking base 23 and interlocking with the operation of the lever 43, and an L-shaped bracket that engages with the distal end side of the link member 53. 54 and a projection 55 provided in the paper discharge device 18 that locks the L-shaped metal fitting 54.
[0026]
The lever 52 is provided so that the link member 53 is biased in the direction opposite to the arrow A direction by a spring means or the like. When the lever 52 is operated, the link member 53 that moves in conjunction with the lever 52 is moved in the arrow direction. Move a predetermined distance. An engaging portion 57 is provided on the distal end side of the link member 53 and engages with a protrusion 58 provided at one end of the L-shaped metal fitting 54. The engaging portion 57 and the protrusion 58 are provided so as to engage only when the loading table 20 is located at the first position of the moving means 22. The L-shaped metal fitting 54 has a fulcrum 59 and a hook 60 at the other end, and is normally provided so as to be urged in the direction of arrow B by the action of the spring means 56 around the fulcrum 59. Yes.
[0027]
By operating the lever 52 in this way, the engagement between the hook 60 provided on the other end of the L-shaped metal fitting 54 and the projection 55 provided on the transfer material processing device 19 main body is released, and the stacking base 20 is the main body of the paper discharge device 18. The stacking base 20 is exposed to the outside together with the holding member 26 by moving the slide table 32 by the slide member 32.
[0028]
In the embodiment, a method of stacking the transfer material on the stacking base 20 in the paper discharge device 18 will be described in detail.
The paper discharge device 18 includes a suction conveyance unit 65, a guide member 66, and a pressing movement unit 64, and guides the transfer material discharged from the discharge port 21 while sucking the upper surface of the transfer material by the suction conveyance unit 65. Guide to member 66. The pressure moving means set to the transfer material conveyance speed is reached by the conveyance force of the suction conveyance means 65, and the transfer material is pressed so as to align the leading ends. The surface of the belt of the pressing and moving means can be moved between the previously accumulated transfer material while pressing the transfer material, and between the transfer material when the tip of the transfer material hits the guide member Slip is generated, and the transfer material has a frictional resistance that does not move any more.
[0029]
The operation will be described with such a configuration.
A predetermined number of transfer materials are stacked on the stacking base 20 positioned at the first position of the holding member 26 in the paper discharge device 18, and image formation is completed. The operator operates a switch for moving the loading table 20 provided on the control panel downward, the lift 33 is operated by the moving means 22, and the loading table 20 is moved downward together with the holding member 26. The lift 33 operates until the holding member 26 comes into contact with the limiter. Just before the lift 33 stops, the loading table 20 is placed at the second position of the loading portion of the carriage 23, and the hole 29, the long hole 30, and the protrusion 31 are engaged. Are positioned together. When the holding member 26 is further lowered, the holding member 26 is released from the action of the magnet 51 to separate the loading table 20.
[0030]
Next, the second lock member 44 is released, and the carriage 23 is separated from the main body of the paper discharge device 18. The operator pulls the carriage 23 along the guide 67 and carries it out to a predetermined position together with the stacked transfer material. At this time, the reinforcing member 49 reinforces the space between the placing portion 28 and the support portion 41 of the carriage 23 in accordance with the drawing operation of the carriage 23.
In the embodiment, the magnet 51 is used to securely place the stacking table 20 on the holding member 26 at the first position. However, a magnet is provided on the mounting portion 28 of the carriage 23 at the second position. You may provide the mounting part 28 and the mounting base 20 so that it may adsorb | suck by the effect | action of a magnet.
[0031]
After transferring the transfer material loaded on the carriage 23 to a predetermined position, the carriage 23 is mounted in the apparatus main body along the guide 67 again, and the carriage 23 and the paper discharge device 18 are moved by the second lock member 44. Insert and set until locked.
[0032]
On the other hand, a case where a number of transfer materials that do not use the carriage 23 are loaded on the loading table 20 will be described.
In order to take out the transfer material loaded on the loading table 20, the operator slightly moves the loading table 20 downward by a control panel or the like to release the pressing of the moving pressing means 64.
Next, the operator pulls out the sheet discharge device while operating the lever so as to release the first lock member 43. Then, the link member 53 and the L-shaped metal member 54 are interlocked to release the hook 60 from the projection 58, and the carriage 23 and the holding member 26 are exposed to the outside of the paper discharge device as the slide member 32 slides, and the transfer material Remove.
[0033]
After removing the transfer material, the stacking base and the holding member are moved into the main body of the paper discharge device until they are locked by the lock member of the base 1.
Thereafter, the loading platform is moved by the moving means automatically or by an operator's instruction, and is positioned at a predetermined position with respect to the pressing moving means, and is prepared for the next image formation.
[0034]
【The invention's effect】
With such a configuration, when a large number of transfer materials are stacked on the loading table, the loading table is separated from the paper discharge device and placed on the cart, and the second lock is released from the paper discharge device and the cart is released. Can be pulled out and carried out of the paper discharge device. Further, in the case of a small number of transfer materials, the transfer means can be removed by sliding the moving means on which the loading table is placed to expose it from the paper discharge device main body.
Further, by using the magnet, the loading table can be placed on the holding member or the carriage with a simple operation and a stable state.
[Brief description of the drawings]
FIG. 1 is a schematic sectional view of an image forming apparatus.
FIG. 2 is a front view showing a transfer material processing apparatus in a paper discharge apparatus according to the present invention.
FIG. 3 is a side view showing a transfer material processing device in a paper discharge device according to the present invention.
FIG. 4 is a top view showing a transfer material processing apparatus in the paper discharge apparatus according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Image forming apparatus 2 Paper supply part 3 Image forming part 4 Paper discharge part 5a, 5b Stacker 6 Suction belt 7 Photosensitive drum 8 Corona charger 9 Exposure apparatus 10 Developing apparatus 11 Transfer corona discharger 12 Separation corona discharger 13 Cleaning apparatus 14 Eraser lamp 15 Fixing device 16 Tray 17 Discharge port 18 Discharge device 19 Transfer material processing device 20 Loading table 21 Discharge port 22 Moving means 23 Carriage 24 Hole 25 Long hole 26 Holding member 27 Protrusion 28 Placement portion 29 Hole 30 Long hole 31 Projection 32 Slide member 33 Lift 34 Nut 35 Screw 36 Bottom plate 37 Pulley 38 Timing belt 39 Caster 40 Caster 41 Support portion 42 Guide 43 First lock member 44 Second lock member 45 Support point 46 Lever 47 Protrusion 48 Hook member 49 Reinforcement member 50 fulcrum 51 magnet 52 lever 53 Click member 54 L-shaped bracket 55 projection 56 spring means 57 engaging portion 58 protrusion 59 fulcrum 60 hook 62 handle 63 mounting hole 64 moves the pressing means 65 suction conveying means 66 guide member 67 guide 68 distal roller 69 fixed leg 70 support 71 rollers

Claims (3)

A stacking base provided in the main body of the paper discharge device for sequentially collecting the transfer materials discharged from the discharge port, and the stacking base is placed at a predetermined position and vertically depending on the load amount on the stacking base. Moving means for moving from the predetermined position to the first position or the second position, and a carriage detachably attached to the paper discharge device for placing the transfer material accumulated on the loading table,
The moving means includes a slide member that exposes the moving means to the outside from the paper discharge apparatus main body in a direction transverse to the discharge direction of the transfer material, and a first member that locks the moving means to the paper discharge apparatus main body. A link member provided on the loading table is connected to the first locking member only when the loading table is located at the first position of the moving means, and By operating the link member, the first lock member is released from the paper discharge device, and the moving means is pulled out by the slide member together with the stacking base,
The transfer material processing apparatus, wherein the carriage is pulled out from the paper discharge device when the loading table is located at the second position .   The moving means has a magnet for attracting the loading table by magnetic force, and moves the moving means to a position lower than a second position of the carriage to separate the loading table from the moving means. The transfer material processing apparatus in the paper discharge apparatus according to claim 1.   4. A transfer material processing apparatus in a paper discharge device according to claim 1, wherein a second lock member for locking the carriage is provided on the paper discharge device main body.

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