JPH03143869A - Paper discharging device - Google Patents

Abstract

PURPOSE:To freely select the process of stacking papers with their printing faces up or down by causing papers to lay down on a discharged paper stacking member while changing the directions of both sides of the papers according to the switched position of the discharged paper stacking member. CONSTITUTION:A discharged paper stacking member 39 for sequentially stacking papers fed is provided in such a manner that it can be switched rotation to a first position whereby the papers are inclined with their faces F up, and to a second position whereby the papers are inclined with their reverse faces R up. A link member 44 for selectively switching and holding the rotational position of the discharged paper stacking member 39 is provided and the papers are laid down on the discharged paper stacking member 39 while the directions of both sides of the papers are changed according to the switched position of the discharged paper stacking member 39. By this constitution the papers are processed while the directions of both sides of the paper are freely selected in such a manner that the papers are stacked with their faces of reverse faces up.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a paper ejecting device that sequentially stacks and processes sheets ejected from an apparatus main body, such as an electronic copying machine or a printer.

<Prior art> Figure 3 shows the internal structure of a general electronic copying machine and a conventional paper ejection processing system equipped with a paper ejection device that sequentially stacks and processes sheets ejected from this electronic copying machine. It is a schematic horizontal command diagram showing an example.

In the figure, inside an apparatus main body 1 as an electronic copying machine, there is a photoreceptor 2, a charger 3 that uniformly charges the photoreceptor 2, and a latent image that is written on the photoreceptor 2 according to an input signal. a developing unit section 5 that develops the latent image with toner;
A recording mechanism using a well-known electrophotographic recording method is housed, such as a transfer charger 6 that transfers a toner image onto paper, and a fixing unit 7 that fixes the transferred toner image on the paper. Further, the paper ejection section 4 of the apparatus main body 1 is provided with a plurality (two in this embodiment) of paper ejection roller pairs 8, and the paper on which the toner image has been fixed in the fixing unit section 7 is transferred to the paper ejection roller pairs 8. is sent to the discharge port 1a by the pair 8, and this discharge port 1
It is designed to be discharged to the outside of the apparatus main body 1 from a point a. In this case, the paper is discharged from the discharge port 1a with the printed side facing up.

On the other hand, on the outside of the main body 1 of the apparatus, a paper ejecting device 9 is provided as a unit for sequentially stacking and processing the sheets ejected from the ejecting port 1a. This paper ejecting device 9 is provided with a plurality of ejected paper stacking members 10 stacked apart from each other in the vertical direction. The discharged sheets are sequentially placed on the discharged sheet stacking member 10 that has been moved to the discharge port 1a, and sorted. In the case of this paper ejection device 9, sheets ejected from the ejection port 1a with the printed side facing up are stacked on the ejected paper stacking member 10 with the printed side facing up.

Next, FIG. 4 shows an example of a conventional paper discharge processing system in which a paper reversing device 11 is provided between the apparatus main body 1 and the paper discharge device 9 shown in FIG. In FIG. 4, the same reference numerals as those shown in FIG. 3 indicate the same components as in FIG.

In the sheet reversing device 11 in the sheet discharge processing system shown in FIG. 4, a sheet reversing path 12 into which the sheet is temporarily introduced is provided in the middle of one path through which the sheet discharged from the discharge port 1a is sent. It is provided.

Fixed roller 1 is installed at the entrance of this paper reversing path] 2.
6 and a movable roller 17 are provided. Of these, the movable roller 17 can be brought into contact with and separated from the fixed roller 16 by switching the swing of a swing lever 18. Also, travel 1j for paper reversal! Passage 1 facing the entrance part of t12
The one portion 19b is slightly biased toward the movable roller 17, and is gently bent to protrude inward.

In the paper reversing device 11 configured as described above, the movable roller 17 is normally held in a state separated from the fixed roller 16. Also, in this 8: position, with the printed side facing up, discharge port 1
When the paper is discharged from a, the paper enters the entrance side passage 19.
It is sent by drive roller pair 2O in a. And aisle 19
When the sheet is fed to the inner portion 19b, it is temporarily introduced into the sheet reversing path 12 due to the bent shape of this portion 19b. Further, when the rear end of the paper is completely introduced into the paper reversing path 12, it stops. At the same time, the swing lever 18 is rotated clockwise in the figure, and the movable roller 17 is brought into contact with the fixed roller 16.Next, the motor (not shown) is driven to rotate in the reverse direction, thereby causing the movable roller 17 to come into contact with the fixed roller 16. The paper feed roller in the paper reversing path 12 also rotates in the opposite direction, and the paper is conveyed in the opposite direction to the direction in which it was introduced, and is discharged from the paper reversing path 12. At this time, the movable roller 17 The passage 19 is opened by rotating the front swing lever 18.
19b and moves to the exit side passage 19c side and comes into contact with the fixed roller 16, so that the paper reversing path 12
The paper discharged from the paper is sent to the exit side passage 19c side, and is further discharged from the discharge port 11a via the pair of rollers 22 and 23. Further, when the paper is discharged from the paper reversal path 12, the paper is reversed so that the printed side is from upward to downward. Then, in this inverted state, the sheets are sequentially ejected to the paper ejecting device 9, and the sheets are stacked on the ejected paper stacking member 10 with the printed side facing down. As a result, the paper is ejected.

Next, FIG. 5 shows another example of a conventional paper discharge processing system using a paper discharge device that is a partially modified version of the paper discharge device 9 shown in FIG. In Fig. 5, Fig. 3,
Components denoted by the same reference numerals as those shown in FIG. 4 indicate the same components as in FIGS. 3 and 4.

In the paper discharge device 14 in the paper discharge processing system shown in FIG. 5, unlike the structure shown in FIG. 24b to the opposite side of the discharged sheet stacking member 10, and by stacking the sheets one after another on the discharged sheet stacking member 10 from this opposite side, the sheets discharged with the printed side facing upward can be stacked with the printed side facing upward. It is designed to be stored with the side facing downward.

<Problems to be Solved by the Invention> However, in the conventional paper ejecting devices 9 and 14 shown in FIGS. The structure was not designed to allow for easy switching between facing and storing. For this reason, the paper can only be discharged in one of two ways: stacked with the printed surface facing upward or stacked with the printed surface facing downward, which is very inconvenient in use.

The present invention has been made in view of the above-mentioned problems, and its purpose is to freely stack ejected paper sheets with the printed side facing upward and stacking them downward with a simple switch. An object of the present invention is to provide a paper ejecting device that can be selected.

Means for Solving the Problems> In order to achieve the above object, the paper discharge device according to the present invention has a discharge paper stacking member, on which the fed sheets are sequentially stacked, in an inclined state with the front side facing upward. It is provided to be rotatably switchable between a first position and a second position in which the back surface side is tilted upward, and includes a switching means for selectively switching and holding the rotational position of the discharged paper stacking member. According to the switching position of the discharged paper stacking member, the paper is arranged to fall down on the discharged paper stacking member while changing the direction of the front and back surfaces of the paper.

According to this configuration, when the ejected paper stacking member is rotated and switched to the first position or the second position by a simple operation using the switching means, the ejected paper is moved by the movement of the ejected paper stacking member. They are stacked by falling down one after another according to the inclination at the position.

As a result, it is possible to freely select and process the orientation of the front and back sides of the stacked sheets, such as stacking them with the front side facing upward, or conversely stacking them with the back side facing upward.

<Example> Hereinafter, an example of the present invention will be described in detail using the drawings.

FIG. 1 is a schematic configuration diagram showing an example of the paper discharge device according to the present invention applied to a paper discharge processing system in a general electronic copying machine, and FIG. 2 is a partially enlarged view of FIG. be. Further, in FIGS. 1 and 2, the same reference numerals as in FIGS. 3 to 5 indicate the same parts as in FIGS. 3 to 5. That is, the internal structure of the apparatus main body 1 as an electronic copying machine shown in FIGS. 1 and 2 is the same as the internal structure of the apparatus main body 1 shown in FIGS. 3 to 5. Further, the paper ejection device 30 according to the present invention is provided corresponding to the ejection port 1a of the apparatus main body 1.

To explain further, the paper ejection device 30 is provided with a guide member 32 having an opening 31 into which sheets ejected from the ejection port 1a are successively inserted.

The paper inserted through this opening 31 is guided by a guide member 32 and guided further inside.

On the other hand, at the end portion of the guide member 32, there is a paper conveyance 8! Horizontal 33 is arranged. This paper transport mechanism 3
3 is composed of a pair of rollers 34 that are provided spaced apart from each other in the front and rear, and a plurality of conveyor belts 35 that are passed between the pair of rollers 34. Further, although not shown, the plurality of conveyance belts 35 are arranged in parallel along the roller 34 in a state separated from each other with a gap provided between adjacent conveyance belts 35 . The roller 34 is rotated by a motor (not shown), and when the roller 34 rotates, a plurality of conveyor belts 35 also run at the same time, so that the paper placed on the conveyor belt 35 can be conveyed in one direction. It has become.

Further, above each conveyor belt 35, each conveyor belt 3
A plurality of guide rollers 36 are provided at approximately equal intervals so as to be in contact with the upper surface of each conveyor belt 5 and to lie at right angles to each conveyor belt 35 . In addition, each guide roller 3
6, the paper capturing member 37 and the ejection roller 3 correspond to each other.
A plurality of pairs (seven pairs in this embodiment) of the stacking member 8 and the discharged paper stacking member 39 are arranged.

Among these, the paper capturing member 37 is provided with a pair of guide walls 37a and 37b vertically separated from each other in correspondence with a gap between the pair of adjacent conveyor belts 35. This paper capturing member 37 can rotate integrally with a support shaft 40 whose rotation is controlled in both directions by a solenoid or the like. When the support shaft 40 rotates clockwise in FIG. 2, the entire sheet capturing member 37 also rotates clockwise, so that the lower end of the guide wall 37b is positioned above the conveyor belt 35, that is, the guide wall 37b is rotated clockwise. The paper capturing member 37 is rotated and moved to the "paper discharging impossible position" where it is placed outside the paper traveling path on the conveyor belt 35. Conversely, when the support shaft 40 rotates counterclockwise in the figure, the entire paper capturing member 37 also rotates counterclockwise, and the lower end side of the guide wall 37b passes through the gap between the conveyor belt 35 and the paper conveyance mechanism. 33, and this guide wall 37b is inserted into the conveyor belt 3.
The paper is rotated to the "paper discharge position" where it is placed in the paper traveling path on the paper 5. Further, in the state where the guide walls 37a and 37b are disposed at this "sheet discharge position", the upper exits of the pair of guide walls 37a and 37b are opened substantially directly upward. Furthermore, in this embodiment, the movement of each sheet capturing member 37 that rotates together with the support shaft 40 is switched from the "sheet discharging position" to the "sheet discharging impossible position J" sequentially from the side closest to the guide member 32, and vice versa. The movement from the "paper discharging impossible position" to the "paper discharging position" is configured by a control means consisting of a solenoid and a control circuit (not shown) so that all the paper capturing members 37 are moved at the same time. It can be changed in various ways depending on the purpose.

The discharge roller 38 is provided above the paper capture member 37 and at a position adjacent to the upper portions of the pair of guide walls 37a and 37b when the paper capture member 37 is moved to the paper discharge position TIJ. It can be rotated in two directions, forward and reverse, by the driving force of a motor (not shown).

Next, three discharged paper stacking members are provided between each discharged paper stacking member 38 and each of the discharged paper stacking members 38.
One end of 9 is rotatably supported by a support shaft 41 . Further, an arm portion 39b extending perpendicularly in the front-rear direction with respect to the main body portion 39a is integrally formed at one end side of each of the three discharged paper stacking members supported by the support shaft 41. Note that rollers 43 are provided at both ends of this arm portion 39b.
is rotatably mounted. Each roller 43 collides with the ejection roller 38 on the rotating side when the ejected paper stacking member 39 rotates about the support shaft 41, and restricts further rotation of the ejected paper stacking member 39. It has become.

Furthermore, each discharged paper 8t1. The member 39 is connected to each discharge roller 38
They are each rotatably connected in common through a pin 42 to a single link member 44 which is disposed on the upper side of the body and is movable back and forth in the front-rear direction. This link member 44 serves as a switching means, and a solenoid 46 (see FIG. 2), which is different from the above-mentioned solenoid that switches the paper capturing member 37, is attached to one end. That is, it can be selectively moved in the directions of arrow A and arrow B shown in FIGS. 1 and 2. Note that the moving operation of the link member 44 may be configured to be switched manually. Then, when the link member 44 is moved in the direction of arrow A, each of the three discharged paper stacking members rotates clockwise, and each of the three discharged paper stacking members covers all of the discharged paper as shown in FIG. One side F (front side) of the fi11 member 39 faces diagonally upward, and the opposite side R (back side) faces diagonally downward. Moreover, on the contrary, the link member 44
is moved in the direction of arrow B, the discharged paper stacking member 39 rotates counterclockwise, and as shown in FIG. It will be tilted towards the bottom.

In the paper ejection processing system configured in this way, the paper recorded in the main body 1 of the apparatus is ejected with the printed side facing upward, but if the inclination of the ejected paper stacking section N39 is changed by the rotation switching described above, this paper can be ejected with the printed side facing upward. This operation can be stacked on three discharged paper stacking members with the printed side facing upward or downward. Next, this operation will be explained.

First, if you want to stack sheets of paper ejected from the ejection port 1a with the printing side facing upward one by one with the printed side facing upward,
As shown in FIGS. 1(a) and 2(b), the link member 44 is moved in the direction of arrow B under the control of the solenoid 46. Then, each discharged paper stacking member 39 rotates clockwise in the figure with the support shaft 41 as a fulcrum until the roller 43 collides with the discharge roller 38 and is regulated, and one side F of each discharged paper stacking member 39 is tilted upward. On the other hand, the paper capturing members 37 are controlled separately from this, and all of the paper capturing members 37 are initially moved to the "paper discharge position".

Then, when the recording on the apparatus main body 1 side is started, the drive of the paper conveyor tli33 is started, and the conveyor belt 35 continuously rotates in the clockwise direction in the figure, and at the same time, the discharge roller 38 also rotates counterclockwise in the figure. Start rotating in the circular direction. Also,
In this state, a sheet of paper discharged from the discharge port 1a with the printed surface facing upward is inserted through the opening 31, and further conveyed through the guide member 32 onto the conveyor belt 35. Then, the paper is transported in the direction of arrow B by the transport belt 35.

In this way, the paper is transported by the transport belt 35, and when it reaches the part of the first paper capture member 37 that is being moved to the "paper discharge device", it is guided to a pair of guide walls 37a, 37b in this paper capture member 37. The leading edge of the paper is
The paper is guided and inserted between the discharge roller 38 and the roller 43 which are in contact with each other.Then, the rotation of the discharge roller 38 and the roller 43 causes the paper to be sent upward and onto the discharged paper stacking member 39. The paper is stacked on one side F, which is tilted with the printed side facing upward. When this -th sheet of paper is placed on the first discharged paper stacking member 39, the paper capturing members 37 corresponding to the first three discharged paper stacking members are moved together with the spindle 40 as shown in the figure. It is rotated in the clockwise direction and moved to the paper discharging impossible position J.Then, the next paper that is conveyed is captured by the second paper capturing member 37, and the same is placed in the second paper stacking member 39. The paper capturing member 3 is placed with the printed side facing upward by falling onto one side F which is tilted upward.
7 is similarly rotated in the clockwise direction in the figure together with the support shaft 40, and moved to the "sheet discharging impossible position". That is, this operation is sequentially transferred to the rear side, and sheets are stacked in the same manner in order from the first to the Nth (up to the seventh in this embodiment) discharged paper stacking member 39. Figure 1 (a)
, Figure 2 (a) shows the state when the paper is placed on the fourth three discharged paper stacking members with the printed side facing upward. In this way, N
When the paper is placed up to the number 1, all the paper capturing members 37 are rotated together with the spindle 40 in the counterclockwise direction in the figure to move to the "sheet discharge position" and return to the number 1 again, and the The next sheet of paper is stacked one after the other with the printed side facing up. This allows you to align the pages and create the required number of copies of the material.

Next, when stacking the sheets of paper ejected from the ejection port 1a with the printed side facing up one after another with the printed side facing down, the solenoid 46, the link member 44 is moved in the direction of arrow A. Then, each discharged sheet stacking member 39 rotates counterclockwise in the figure with the support shaft 41 as a fulcrum until the roller 43 collides with the discharged roller 38 and is regulated. R is now facing upward and tilted. Also,
Separately, all the paper capturing members 37 are moved to the "paper ejecting position", and the ejection ports of each paper capturing member 37 are brought into a state where they correspond to the space between the ejecting rollers 38 and rollers 43 that are in contact with each other. .

Then, when recording on the apparatus main body 1 side starts, driving of the paper conveyance mechanism 33 is also started, and the conveyance belt 35 continuously rotates in the clockwise direction in the figure. At the same time, the discharge roller 38 also starts rotating clockwise in the figure. In addition, in this state, when a sheet of paper discharged from the discharge port 1a with the printed side facing upward is inserted through the opening 31 and is further conveyed through the guide member 32 onto the conveyor belt 35, this conveyor belt 3
5, it is transported in the direction of arrow B.

In this way, the paper is conveyed by the conveyor belt 35, and when it reaches the part of the first paper capture member 37 that has been moved to the F paper discharge position j, the leading edge side of this paper is transferred to the pair of paper capture members 37 at the first paper capture member 37. The paper is guided by the guide walls 37a and 37b, and is further inserted between the discharge roller 38 and the roller 43 which are in contact with each other. Then, the paper is sent upward by the rotation of the ejection roller 38 and the roller 43, falls onto one side R of the three ejected paper stacking members that is tilted upward, and is placed with the printed side facing downward. Ru. Then, when this -th sheet of paper is placed on the first three JJI paper stacking members, this first paper ejection Faa member 39
The paper fIrJ) I member 37 corresponding to
will be moved to Then, the fifth sheet of paper is captured by the second paper capturing member 37, and is thrown onto one side R of the three second ejected paper stacking members, which are also tilted upwards, and is placed on the printing surface. is placed facing downward. In this case, similarly to the case where the printed side is placed facing upward, the printed side is placed downward in order from the first to the Nth (in this example, the seventh), and then the Nth When reached, all the paper capturing members 37 are rotated counterclockwise together with the spindle 40 in the figure to move to the "paper ejecting position" and return to the first position again. The next sheet is stacked on top with the printed side facing downward. Figures 1(b) and 2(b) show the third tJ
J paper r? This shows a state in which paper is placed on three placement members with the printed side facing downward. In other words, even in this process, the required number of copies of the material can be created by aligning the pages.

Therefore, in the paper discharging device according to this embodiment, the link member 44 is moved in the direction of arrow A or the direction of arrow B shown in FIG. 2 by operating the solenoid 46 to rotate the three discharged paper stacking members, When the three members are selectively switched between a first position in which one side F, which is the front surface, is tilted upward, and a second position, in which one side R, which is the back surface, is tilted upward, the three members are transported. The direction in which the stacked sheets fall can be changed, and the stacking direction can be freely selected and processed using this switch. This makes it easier to process the paper output from the ut, and improves the efficiency of PF work.

Note that the means for switching the rotational movement position of the discharged paper stacking member 39 is not limited to the structure of the above embodiment, and may be modified in various ways. Further, the number of discharged paper stacking members 39 is not limited to the number shown in the structure of this embodiment, and can be freely set to one or more. Furthermore, in this embodiment, a structure in which the paper ejecting device 30 is provided outside the apparatus main body 1 has been described, but this may be incorporated into the apparatus main body 1 and configured as an integral part.

<Effects of the Invention> As explained above, according to the ejection device according to the present invention,
When the ejected paper stacking member is rotated and switched to the first position or the second position by a simple operation using the switching means, the ejected paper is opened according to the inclination of the ejected paper stacking member at the moved position. They fall one after another and are piled up.

This allows you to freely select the orientation of the front and back sides of the stacked sheets, such as stacking them with the front side facing up or, conversely, stacking them with the back side facing up. It becomes easier to process the paper output from the main body of the device, improving work efficiency.

[Brief explanation of the drawing]

1121(a) and 1121(b) are schematic configuration diagrams showing an example of a paper discharge processing system to which the paper discharge device according to the present invention is applied; An enlarged view of the main parts, Fig. 3 is a schematic configuration diagram showing an example of an ejected paper processing system using a conventional paper ejecting device, and Fig. 4 shows a paper ejecting system using another conventional paper ejecting device. Schematic configuration diagram showing a processing system. Fig. 5 is a schematic configuration diagram showing an example of a paper discharge processing system to which still another conventional paper discharge device is applied. 1... Apparatus main body, 1a. ...Discharge port, 30...Sheet discharge device 39...Discharged paper stacking member 44...Link member (switching means). 1: Apparatus main body 1a: J valve outlet 30; b) The 111 paper processing system that applied and used the developed FAA is the Tenharashiki 2. A schematic diagram of the Saigodo Guidoku (first example). 2 conventional example)

Claims (1)

[Scope of Claims] In a paper ejecting device equipped with an ejected paper stacking member on which sequentially fed sheets are stacked, the ejected paper stacking member is placed in a first position where the surface side thereof is tilted upward. and a switching means for selectively switching and holding the rotational position of the discharged paper stacking member; A paper discharge device characterized in that the paper is arranged to fall down on the discharged paper stacking member by changing the direction of the front and back sides of the paper depending on the switching position of the member.