JP2000247529A - Discharged paper processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely house discharged paper sheets into a paper sheet tray, and also correctly house the paper sheets at a specified position on the tray constantly. SOLUTION: This device is equipped with a paddle mechanism 6 arranged between a paper sheet discharging part 2 and a paper sheet tray 3 and having paddle parts 5i... turnably supported at one end thereof by a supporting shaft 4, and a paddle driving mechanism 7 positioned at a pushed-out position Xq standing at least the front of the discharge part 2 and at a pushing position Xp for pressing the uppermost surfaces of paper sheets P... housed in a paper sheet tray 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet discharging apparatus for discharging a sheet discharged from a sheet discharging section of a copying machine or the like and stored in a sheet tray disposed below.

[0002]

2. Description of the Related Art Generally, in a digital copying machine, an original is read by an image scanner, a read image signal is converted into image data (digital signal), and a copy process is performed after the image signal is once written in an image memory. Even a document of a plurality of pages can be continuously copied for each set. Therefore, in such a digital copying machine, as shown in FIG. 9, there is provided a paper discharge device having an offset discharge mechanism that discharges paper (copy paper) P in a set Sp... It is attached.

Conventionally, as this type of paper discharging device, Japanese Patent Application Laid-Open No. 63-27253 discloses that two sets of roller mechanisms having different discharging directions are provided, and the paper is offset by selectively switching these roller mechanisms. Japanese Patent Application Laid-Open No. 63-54624 discloses a sheet distributing device or a mechanism for displacing one end of a shaft supporting a roller mechanism back and forth, and offsetting the sheet by changing the angle of the roller mechanism in the conveying direction. 2. Description of the Related Art An automatic sorting apparatus disclosed in a gazette is known.

[0004]

By the way, in this type of paper discharge device, since the paper is discharged while offset in the left-right direction, it is not only necessary to discharge each paper smoothly and reliably onto the paper tray. It is necessary to precisely discharge each sheet to a predetermined position on the sheet tray.

However, conventionally, the paper discharged from the paper discharge unit is naturally dropped on the paper tray disposed below, and thus the paper is likely to be misaligned. Unnecessary time loss occurs, such as the necessity of realigning the paper after the paper is discharged, and especially in the paper discharge device with the offset discharge mechanism, the paper is set due to a large positional deviation. There was a problem that the original purpose of distributing each time could not be achieved. Moreover, in order to avoid such a problem, it is necessary to increase the margin by increasing the offset amount. As a result, there has been a problem that the paper discharge device side is increased in size.

The present invention has been made to solve the problems existing in the prior art, and ensures that the discharged paper is stored in a paper tray and that the paper is always accurately positioned at a predetermined position on the paper tray. It is an object of the present invention to provide a paper ejection processing device capable of being accommodated.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a sheet discharging process for discharging sheets P discharged from a sheet discharging section 2 and stored in a sheet tray 3 arranged below. When the apparatus 1 is constructed, a paddle mechanism 6 having a paddle section 5i disposed between the sheet discharge section 2 and the sheet tray 3 and having one end side rotatably supported by the support section 4 and a paddle section 5i. A paddle drive mechanism 7 that is at least positioned at a pushing position Xp that rises in front of the sheet discharge unit 2 and a pressing position Xp that presses the uppermost surface of the sheets P stored in the sheet tray 3 by being rotationally displaced. It is characterized by.

In this case, according to a preferred embodiment, a pair of paddle portions 5i and 5j are provided, and each paddle portion 5i and 5j is individually driven by a paddle drive mechanism 7. The paddle portions 5i are composed of pivot core portions 10i and 10j rotatably supported by the support portion 4, paddle plate portions 11i and 11j protruding from the pivot core portions 10i and 10j, and pivot cores. Parts 10i, 10j and paddle plate parts 11i, 11j
The paddle plate portions 11i and 11j have rubber pads 13i and 13j abutting on the uppermost surfaces of the sheets P stored in the sheet tray 3, and have paddle surface portions 11i attached thereto.
f, 11jf. On the other hand, the paddle drive mechanism 7 has clutch units 15i and 15j that selectively transmit the rotation of the rotation drive unit 14 to the rotation core units 10i and 10j.

Thus, if the paddle portions 5i are rotationally displaced by the paddle driving mechanism 7 and the paddle portions 5i are positioned at the pushing position Xq standing up front of the sheet discharge portion 2, for example, Are prevented from being caught on the way, and the paddle portion 5i is positioned at the pressing position Xp for pressing the uppermost surface of the paper P stored in the paper tray 3, for example, during discharging. Is pressed by the paddle portion 5i even when the top surface of the sheets of paper P on the paper tray 3 is pressed, etc., the position of the sheets of paper P is shifted. Is prevented.

[0010]

Next, preferred embodiments according to the present invention will be described in detail with reference to the drawings.

First, in order to facilitate understanding of the present invention, a configuration of a paper discharge device 50 provided with a paper discharge processing device 1 according to the present embodiment will be described with reference to FIGS.

In the drawing, reference numeral 50 denotes a sheet discharging device provided with an offset discharging mechanism 51 for offsetting and discharging the sheets P in the left-right direction H, and a transport roller mechanism 52 for transporting the sheets P and discharging the sheets P. The discharge roller mechanism 53 is provided. The discharge roller mechanism 53 that constitutes the offset discharge mechanism 51 is disposed downstream of the transport roller mechanism 52, and the discharge roller mechanism 53 and the transport roller mechanism 52 maintain a certain interval. As shown in FIG. 6, the transport roller mechanism 52 includes a drive roller mechanism 54 disposed on one of the upper and lower sides and an idle roller mechanism 55 disposed on the other.
Is transported between the drive roller mechanism 54 and the idle roller mechanism 55. The drive roller mechanism 54 is
A plurality of transport rollers 57 attached at predetermined intervals in the axial direction
, And the shaft 56 is rotatably supported and is rotationally driven by a rotational drive unit 58. On the other hand, the idling roller mechanism 55
A plurality of transport rollers 60 attached at predetermined intervals in the axial direction
, And the shaft 59 is rotatably supported.

On the other hand, as shown in FIG. 6, the discharge roller mechanism 53 comprises a drive roller mechanism 61 disposed on one of the upper and lower sides and an idle roller mechanism 62 disposed on the other. Is transported (discharged) sandwiched between the drive roller mechanism 61 and the idling roller mechanism 62. The drive roller mechanism 61 includes a shaft 63 having a plurality of transport rollers 64 attached at predetermined intervals in the axial direction. The shaft 63 is rotatably supported and simultaneously displaceable in the axial direction. Supported. The engaged disk 65 and the rotation transmitting portion 6 are provided at one end of the shaft 63.
6 are integrally provided, and the rotation transmitting section 66 is
7 is spline-engaged. Further, a left / right drive mechanism 69 is provided near the engaged disk 65. The left / right drive mechanism 69 includes a U-shaped engagement portion 69s that engages with the engaged disk 65, and a straight drive portion 69d that moves the engagement portion 69s in the left-right direction H. On the other hand, the idling roller mechanism 62 includes a shaft 70 having a plurality of transport rollers 71 attached at predetermined intervals in the axial direction.
The shaft 70 is rotatably supported, and an engaged disk similar to the engaged disk 65 engaged with the engaging portion 69s is integrally provided at one end of the shaft 70. Therefore,
If the engaging portion 69s is moved in the left-right direction H by the straight driving portion 69d, the discharge roller mechanism 53 (the driving roller mechanism portion 6) is moved.
1 and the idling roller mechanism 62) are also moved in the left-right direction H.

At a predetermined position between the transport roller mechanism 52 and the discharge roller mechanism 53 and close to the discharge roller mechanism 53, right edge portions at different offset positions Xa and Xb of the paper P moving in the left-right direction H are provided. A pair of paper position sensors 72a, 72b for detecting Pp ... are provided. That is, as shown in FIG. 8, the paper position sensors 72a and 72b move the discharge roller mechanism 53 from the home position Xh to the predetermined distances La and Lb in both the left and right directions (in the embodiment,
La = Lb) It is arranged at a position for detecting the right edge portion Pp. In this case, the paper position sensor 7
As 2a and 72b, a reflection type or transmission type optical sensor can be used. Further, one sheet position sensor (right sheet position sensor) 72a detects the entry (presence) of the right edge portion Pp, and the other sheet position sensor (left sheet position sensor) 7a.
2b detects the exit (absence) of the right edge portion Pp.
In FIG. 6, reference numerals 73 and 74 denote an upper guide section and a lower guide section provided between the transport roller mechanism 52 and the discharge roller mechanism 53. The upper guide section 73 and the lower guide section 74 guide the paper P. Is done.

Further, at a predetermined position between the transport roller mechanism 52 and the discharge roller mechanism 53 and near the transport roller mechanism 52, a transport position sensor 75 for detecting that the paper P has reached a predetermined transport position Xs. Is arranged. Since the transport position sensor 75 has a detection lever 76 that enters between the upper guide portion 73 and the lower guide portion 74 in a natural state, the detection lever 76 is displaced upward by the passage of the sheet P. Accordingly, the transport position sensor 75 detects that the rear edge portion Pr of the sheet P has moved away from the detection lever 76 and the detection lever 76 has been displaced downward, thereby reaching the predetermined transport position Xs.

On the other hand, a control unit 80 is a CPU 81 for executing various controls and processes, and an RA for writing image data.
A computer function unit includes an M (image memory) 82, a ROM 83 storing various programs including a control program, an input interface 84, an output interface 85, and the like. Then, the right paper position sensor 72a, the left paper position sensor 72b, and the transport position sensor 7
5 is connected to the input port of the input interface 84, and the rotation drive unit 58, the rotation drive unit 67, and the straight drive unit 69 d are connected to the output port of the output interface 85. In accordance with the present invention, the control unit 80 controls the left / right drive mechanism 69 by detecting the transport position sensor 75, moves the discharge roller mechanism 53 in the offset direction from the home position Xh, and detects the discharge rollers by detecting the sheet position sensors 72a. A function to stop the movement of the mechanism 53 is provided.

Next, the configuration of the paper ejection processing apparatus 1 according to the present embodiment will be described with reference to FIGS.

As shown in FIG. 1, the paper discharge processing device 1 is disposed between a paper discharge unit 2 and a paper tray 3. The paper discharge processing device 1 basically has a function of securely storing the paper P discharged from the discharge roller mechanism 53 in the paper tray 3 and pressing the stored paper P so as not to be displaced.
The sheet discharge processing device 1 includes a fixed support shaft 4s (support portion 4), and supports two sets of paddle mechanisms 6 at symmetric positions of the support shaft 4s. FIG. 5 shows only the paddle mechanism 6 on the right side, but the same paddle mechanism 6 is also supported on the left side that does not appear in the figure. In addition, such a paddle mechanism 6
May be arranged in one central part of the support shaft 4s,
There is no limitation on the quantity, for example, it may be arranged at three places on the left, right, and center.

The paddle mechanism 6 has a pair of paddle portions 5i and 5j supported side by side on a support shaft 4s, and each of the paddle portions 5i and 5j is a cylindrical member rotatably supported by the support shaft 4s. Rotating cores 10i, 10j, brackets 16i, 16j projecting from the outer peripheral surface of the rotating cores 10i, 10j, and brackets 16i, 16j.
j, and the transmitted gears 17i, 1 symmetrically provided at the non-facing end of the pivot cores 10i, 10j, one end of which is rotatably supported by j.
7j. In this case, the paddle plate portions 11i, 1
1j is formed in an L shape, and a wide paddle surface portion 11i is formed at the tip.
f, 11jf and each paddle surface 11i
f and 11jf each have a rubber pad 13
Attach i, 13j. Further, the paddle plate portions 11i and 11j are so arranged that the center positions of the paddle surface portions 11if and 11jf coincide in the axial direction of the support shaft 4s.
Consider the overall shape of Further, as shown in FIG. 6, the rotating core portions 10i, 10j and the paddle plate portions 11i, 1
Spring 12i and 12j are respectively bridged between 1j, and it is considered that paddle plate portions 11i and 11j project in the tangential direction of rotating core portions 10i and 10j in a natural state (see FIG. 6).

Reference numeral 7 denotes a paddle drive mechanism for driving the paddle portions 5i and 5j, and a pair of rotatably supported drive shafts 21i and 21j and each drive shaft 21
i, 21j, and transmission gears 22i, 22j respectively meshed with the transmission gears 17i, 17j, clutch portions 15i, 15j connecting one end of the drive shafts 21i, 21j to the output side, and the clutch portions 15i, 21j. 15j
Gears 24i, 2 attached to a shaft connected to the input side of
4j, a rotation drive unit 14, and a drive gear 27 attached to the rotation output shaft 26 of the rotation drive unit 14 and meshing with driven gears 24i, 24j, respectively. Although the driven gears 24i and 24j shown in FIG. 5 are located at 180 ° symmetry, they can actually be approached by using an empty space as shown by a virtual line in FIG.

Next, the discharge processing method including the operation of the paper discharge processing apparatus 1 according to the present embodiment and the operation of the paper discharge apparatus 50 will be described.

First, the operation of the paper discharge device 50 will be described with reference to the flowchart shown in FIG.

First, when the paper P is discharged, an operation control signal is given from the control unit 80 to the rotation driving units 58 and 67,
The shafts 56 and 63 are driven to rotate. on the other hand,
The paper P is transported from the upstream side to the transport roller mechanism 52, and is transported forward (downstream side) while being sandwiched between the drive roller mechanism 54 and the idle roller mechanism 55 of the transport roller mechanism 52.
At this time, the sheet P is guided by the upper guide 73 and the lower guide 74, and the detection lever 76 of the transport position sensor 75 is displaced upward by the sheet P. When the leading end of the sheet P reaches the discharge roller mechanism 53, the sheet P is transported (discharged) forward between the drive roller mechanism 61 and the idle roller mechanism 62. On the other hand, if the trailing edge Pr of the sheet P separates from the detection lever 76, the detection lever 76
Is displaced downward by its own weight, the paper P reaches the predetermined transport position Xs by the transport position sensor 75, that is,
It is detected that the sheet P has left the transport roller mechanism 52 (step S1).

Since the detection result of the transport position sensor 75 is given to the control unit 80, the control unit 80
An operation control signal is given to 9d. At this time, if the mode is such that the sheet P is offset to the right, the engaging portion 69s is moved rightward by the straight drive unit 69d, and the engaging discharge roller mechanism 53 is also moved rightward (step S).
2, S3). As a result, if the paper P being discharged by the discharge roller mechanism 53 moves in the Ha direction in FIG. 8 and the right edge portion Pp of the paper P enters the right paper position sensor 72a,
The right sheet position sensor 72a detects that the sheet P has reached the right offset position Xa, and the detection result is provided to the control unit 80. Thereby, the control unit 80 gives a stop control signal to the straight drive unit 69d to stop the movement of the discharge roller mechanism 53 (Steps S4 and S5).

Therefore, the sheet P is shifted to the right offset position X.
a and is conveyed forward in this state, and is discharged from a sheet discharge port 2o (sheet discharge section 2) provided in front of the discharge roller mechanism 53. Note that the interval between the transport roller mechanism 52 and the discharge roller mechanism 53 and the sheet P
, The position at which the transfer position sensor 75 is disposed, the moving speed of the discharge roller mechanism 53 by the straight drive unit 69d, and the like. When the sheet P is completely discharged from the discharge roller mechanism 53, the control section 80 gives an operation control signal to the straight drive section 69d, and performs processing for returning the discharge roller mechanism 53 to the home position Xh (step S6). S7).
It is possible to determine that the paper P has been completely discharged, for example, when a certain time has elapsed after the detection by the transport position sensor 75.

On the other hand, if the mode in which the sheet P is offset to the left when the detection result of the transport position sensor 75 is given to the control unit 80, the engaging unit 69s moves to the left and engages. The discharge roller mechanism 53 also moves to the left (steps S8 and S9). As a result, the paper P being discharged by the discharge roller mechanism 53 moves in the direction Hb in FIG. 8, and the right edge Pp of the paper P is moved to the left paper position sensor 72.
If the sheet P is away from b, the left sheet position sensor 72b detects that the sheet P has reached the left offset position Xb, and the detection result is provided to the control unit 80. As a result, the control unit 80 gives a stop control signal to the straight drive unit 69d to stop the movement of the discharge roller mechanism 53 (Steps S10 and S11). Therefore, the sheet P is accurately positioned at the left offset position Xb, is transported forward in this state, and is discharged from the sheet discharge port 2o. When the sheet P is completely discharged from the discharge roller mechanism 53, the control unit 80 gives an operation control signal to the straight drive unit 69d, and performs processing for returning the discharge roller mechanism 53 to the home position Xh (step S12, S13). The sheets P discharged in this manner are sequentially stacked on the sheet tray 3 as shown in FIG. 9 and offset in the left-right direction for each set Sp.

Next, a discharge processing method including the operation of the discharge processing apparatus 1 according to the present embodiment will be described with reference to FIGS.

The sheets P discharged from the sheet discharge port 2o through the sheet discharge device 50 are subjected to discharge processing by the sheet discharge processing device 1. First, the basic operation of the paper discharge processing device 1 will be described. The drive gear 27 rotates by the operation of the rotation drive unit 14, and the driven gears 24i and 24j are driven by the drive gear 27.
Rotates. Then, the clutch unit 15 is controlled by the control unit 80.
By controlling i, 15j, the rotation of each driven gear 24i, 24j is selectively transmitted to the drive shafts 21i, 21j. The rotation of each drive shaft 21i, 21j is controlled by the transmission gears 22i, 22j and the transmitted gears 17i, 17j.
The paddles 5i and 5j are transmitted to the respective paddles 5i and 5j via j, and the paddles 5i and 5j are rotationally displaced clockwise in FIG.

On the other hand, the discharge processing method by the discharge processing apparatus 1 is performed as follows. FIG. 1 shows a discharge roller mechanism 53.
Shows a state in which the paper P is discharged from the. In this case, one paddle plate portion 11i stops at the pressing position Xp for pressing the uppermost surface of the sheets P stacked on the sheet tray 3;
Further, the other paddle plate portion 11j is stopped at a standby position Xq which is 180 ° opposite to the paddle plate portion 11i. Therefore, in this state, the paper outlet 2o
The top end of the paper P discharged from the paper tray 3 is placed on the uppermost surface of the paper P stacked on the paper tray 3, and even if moved in this state, the paper P stacked on the paper tray 3 does not shift. .

When the sheet P is completely discharged from the discharge roller mechanism 53, the other paddle portion 5j rotates substantially 90 ° as shown in FIG.
j faces upward, and the discharge roller mechanism 53 (the paper discharge port 2)
It stops at the extrusion position Xr which is pushed slightly forward from o). Therefore, for example, even if the discharged paper P is caught in the middle and is not completely placed on the uppermost surface of the stacked paper P, the paper P is forcibly pushed out by the paddle plate portion 11j and stacked. Can be reliably placed on the uppermost surface of the cut sheets P.

Paddle plate 1 at extrusion position Xr
The stop time of 1j is short, and after this stop time elapses, the paddle portion 5j further rotates. In this case, one paddle plate portion 11i maintains the state stopped at the pressing position Xp, and as shown in FIG. 3, the other paddle plate portion 11j
Is approaching the upper surface of the discharged sheet P, one paddle portion 5i is rotated. As a result, the paddle plate 11i is displaced against the elasticity of the spring 12i and moves away from the uppermost surface of the stacked sheets of paper P as shown in FIG. When it reaches the position Xq, it stops. Further, the other paddle plate portion 11j stops when it reaches the pressing position Xp shown in FIG. Note that the paddle plate portions 11i and 11j at the pressing position Xp
Since i and 13j abut on the uppermost surface of the stacked sheets of paper P and move away from the uppermost sheet of paper P when leaving, the sheet of paper P is positioned against the wall surface of the sheet tray 3.

The above is one cycle processing of the paper discharge processing apparatus 1 when one sheet of paper P is discharged, and this cycle processing is repeated every time the paper P is discharged.

Therefore, according to the paper discharge processing apparatus 1 according to the present embodiment, the paper P discharged from the paper discharge port 2o is securely stored in the paper tray 3 without being caught in the middle, and The positional deviation of the sheets P stored in the tray 3 is reliably prevented. Therefore, an accurate offset position of the sheets P is ensured until the final stage, and the original purpose of distributing sheets for each set by offset can be reliably achieved. Moreover, since the positional deviation of the sheets P is reliably prevented, the offset amount can be reduced as a result, which contributes to downsizing of the sheet discharging device. Further, the pair of paddle portions 5i and 5j are individually driven by the paddle drive mechanism 7, so that one is located at the pushing position Xq and the other is located at the pressing position Xp.
More accurate discharge processing can be performed.

According to the paper discharge device 50 provided with the paper discharge processing device 1 according to the present embodiment, the paper P is discharged while being accurately positioned at the offset position Xa or Xb. .. In the left-right direction H are almost completely eliminated. Therefore, the discharged paper P
Are eliminated for each set Sp and unnecessary time loss associated therewith is eliminated, and the work efficiency is improved. In addition, since a separate drive control mechanism for variably controlling the angle of the roller mechanism is not required, it can be implemented at a low cost without increasing the size. In particular, in the above embodiment, the discharge roller mechanism 53 is moved from the home position Xh in the left and right directions by a predetermined distance La, Lb (La = Lb).
Since a pair of paper position sensors 72a and 72b are provided at positions where the edge portions Pp.
Assuming that the required offset interval La + Lb is obtained, the time required to move the discharge roller mechanism 53 from the home position Xh to the offset position Xa or Xb becomes the shortest, and as a result, the transport roller mechanism 52 and the discharge roller mechanism 53 It is possible to contribute to downsizing and speeding up, for example, by shortening the distance between them and increasing the conveying speed of the paper P.

The embodiment has been described in detail above.
The present invention is not limited to such an embodiment,
It is possible to arbitrarily change, add, or delete the details of the configuration, shape, quantity, parts, and the like without departing from the gist of the present invention. For example, the case where the paper discharge processing device 1 is attached to the paper discharge device 50 having the offset discharge mechanism 51 has been described.
It may be attached to a general paper ejection device that does not have the offset ejection mechanism 51, or may be attached to a copying machine or any other device with an attached paper ejection function.

[0036]

As described above, the paper discharge processing apparatus according to the present invention has a paddle mechanism having a paddle part disposed between a paper discharge part and a paper tray and having one end rotatably supported by a support shaft. And a paddle drive mechanism for rotating and displacing the paddle unit to be positioned at a pushing position that stands in front of the sheet discharging unit and a pressing position that presses the uppermost surface of the sheets stored in the sheet tray. It produces such remarkable effects.

The discharged paper can be reliably stored in the paper tray, and the paper can always be accurately stored in a predetermined position on the paper tray. Therefore, it is possible to eliminate an extra operation of realigning the sheets after they are discharged and unnecessary time loss associated therewith.

In particular, when the sheet is attached to a sheet discharge device having an offset discharge mechanism, the original purpose of distributing sheets for each set by offset can be reliably achieved, and as a result, the offset amount can be reduced. This can contribute to downsizing of the sheet discharging device.

According to the preferred embodiment, if the pair of paddle portions are individually driven by the paddle drive mechanism, one can be located at the pushing position and the other can be located at the pressing position. Accurate discharge processing can be performed.

[Brief description of the drawings]

FIG. 1 is an operation explanatory diagram for explaining a discharge processing method by a paper discharge processing apparatus according to a preferred embodiment of the present invention;

FIG. 2 is another operation explanatory diagram for explaining the discharge processing method,

FIG. 3 is another operation explanatory diagram for explaining the discharge processing method;

FIG. 4 is another operation explanatory diagram for explaining the discharge processing method;

FIG. 5 is a bottom view showing a part of the sheet discharging apparatus;

FIG. 6 is a partial cross-sectional side view illustrating a configuration of a sheet discharging device provided with the sheet discharging processing device.

FIG. 7 is a plan view of a sheet discharging device provided with the sheet discharging processing device;

FIG. 8 is a diagram illustrating the principle of the paper ejection device;

FIG. 9 is a perspective view showing a part of a state in which sheets discharged from the sheet discharging device are stacked;

FIG. 10 is a flowchart for explaining the operation of the paper ejection device;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Paper discharge processing apparatus 2 Paper discharge part 3 Paper tray 4 Support part 5i ... Paddle part 6 Paddle mechanism 7 Paddle drive mechanism 10i ... Rotating core part 11i ... Paddle plate part 11if ... Paddle surface part 12i ... Spring 13i ... Rubber pad 14 rotation Drive unit 15i Clutch unit P Paper Xq Pushing position Xp Pushing position

Claims (5)

[Claims] 1. A sheet discharge processing device for discharging a sheet discharged from a sheet discharge unit and stored in a sheet tray disposed below, wherein the discharge unit is disposed between the sheet discharge unit and the sheet tray. A paddle mechanism having a paddle part rotatably supported by a support part at one end side, and a paddle part rotatably displaced, so that the paddle mechanism is housed in at least a push-out position rising in front of the paper discharge part and the paper tray. And a paddle drive mechanism that is positioned at a pressing position for pressing an uppermost surface of the selected sheet. 2. The sheet discharging apparatus according to claim 1, further comprising a pair of paddle portions, wherein each paddle portion is individually driven by the paddle driving mechanism. 3. The paddle portion includes a pivot core portion rotatably supported by the support portion, a paddle plate portion protruding from the pivot core portion, the pivot core portion and the paddle plate portion. 3. The sheet discharging apparatus according to claim 1, further comprising a spring provided therebetween. 4. The paddle plate section according to claim 3, wherein the paddle plate section has a paddle surface section to which a rubber pad is affixed to a top surface of the sheet stored in the sheet tray.
The paper ejection processing device according to the above. 5. The sheet ejection processing device according to claim 3, wherein the paddle drive mechanism has a clutch unit that selectively transmits the rotation of the rotation drive unit to the rotation core unit.