JPH03293259A - Paper discharging stacker device - Google Patents

Abstract

PURPOSE:To true up the edges of a copying sheet bundle as well as to align each sheet bundle by aligning the front edges and side edges of copying sheets being sorted and fed, with a front edge guide member and a side edge guide member with the reciprocating movement of a sheet receiving member, and mounting them on the sheet receiving member after having each deflected alternately. CONSTITUTION:When A sheet receiving member 11 is situated at a first end, the center of a sheet front edge guide member 22 is situated at the side of the first end nearer to a guide 19 than a feed center D of a copying sheet 1. Next, when the sheet receiving member 11 is situated in a second end in the specified direction, the center of the front edge guide member 22 is situated at the side of the second end nearer to guides 17, 18 than the feed center D of the copying sheet 1. With this constitution, the copying sheet 1 being fed can be stacked in a state of truing up the edge parts, through which bookbinding operation at the next process can be done easily.

Description

Detailed Description of the Invention: ``Industrial Application Fields'' The present invention is a method for copying multiple copies of each part of a multi-page manuscript from a plurality of sheet bundles in which each page is separated and stored, in a predetermined order. The present invention relates to a discharge stacker device that stacks the copy sheets taken out and fed in a sorted state.

[Prior art] When a collator makes multiple copies of a multi-page manuscript,
The copy sheets are sorted and arranged sequentially starting from the first page, and each copy sheet of each copy is stapled and bound into a book. In this collator, a plurality of bins are arranged at appropriate length intervals in the vertical direction. For example, a large number of copy sheets containing copies of the first page of a manuscript are set in the topmost bin, and the second
The copy sheets of the original after the first page are sequentially set in the second and subsequent bins. Then, when page alignment starts, the topmost sheet of the copy sheets stacked in each bin is taken out from each bin one by one, and is regulated by the sheet side guide plate of the paper alignment device (so-called jogger) and placed on the paper output tray. and are stacked on this output tray. In this case, a sheet bundle consisting of multiple copy sheets from the first page to the last page is stacked in such a way that the first copy sheet bundle is offset to one side on the sheet receiving plate of the output tray. The next stack of copy sheets is stacked in a state offset to the other side of the sheet receiving plate by moving the sheet receiving plate in a direction perpendicular to the feeding direction of the copy sheets. In this manner, copy sheets are stacked in each set sequentially on one side and the other side of the sheet receiving plate.

The sorted and stacked copy sheet bundles are stapled and bound into a book in the next step.

Therefore, it is desirable that each copy sheet bundle be stacked with the edges of the sheet bundles aligned for the convenience of binding and binding with a stapler.

[Problems to be Solved by the Invention] However, in the conventional paper ejection stacker device, there is already a slight deviation in the ejection position when the copy sheet is ejected from the paper ejection roller. Therefore, it is difficult to align the edges of the copy sheet bundle. In addition, since the copy sheet falls while being regulated by the guide plate on its side, if the copy sheet shifts toward this guide plate, the sheet receiving plate moves toward this guide plate, causing the copy sheet to fall. comes into contact with the guide plate and its position is corrected, but if the copy sheet is shifted in the opposite direction, the position of the copy sheet cannot be corrected.

The present invention has been made in view of such problems, and includes:
To provide a paper discharge stacker device capable of stacking fed copy sheets with their edges aligned and facilitating bookbinding work in the next step.

[Means for Solving the Problems] The paper discharge stacker device according to the present invention selects a predetermined sheet stack from a plurality of sheet bundles in which a plurality of copies of each part of a plurality of pages of an original are made and stored separately for each page. The stacker device stacks the copy sheets that are taken out and fed in the order of sorted, and includes a sheet receiving member for receiving the copy sheets, and a sheet receiving member that is arranged in the direction in which the copy sheets are fed. sheet receiving member supporting means for supporting the sheet receiving member movably in intersecting predetermined directions; driving means for reciprocating the sheet receiving member between first and second ends in the predetermined direction; 1 placed on the end side of 2
a pair of sheet side edge guide members, and a sheet leading edge guide member disposed at a front portion of the sheet receiving member in the feeding direction of the copy sheet to lock the fed copy sheet; When the sheet receiving member is located at the first end, the center of the sheet leading edge guide member is located closer to the first end than the feeding center of the copy sheet, and the sheet receiving member is located at the first end. When located at the second end in the predetermined direction, the center of the sheet leading edge guide member is located closer to the second end than the feeding center of the copy sheet.

[Operation] In the present invention, first, the sheet receiving member is located on the first end side, and the copy sheet fed to this sheet receiving member comes into contact with its leading edge guide member. In this case, the leading edge guide member is located closer to the first end than the feeding center of the copy sheet. Therefore, when the copy sheet comes into contact with the leading edge guide member, the moment of inertia generated by the collision causes the rear part of the copy sheet to be deviated toward the second end, and its longitudinal direction is aligned with the feeding direction. The sheet falls onto the sheet receiving member in a slightly inclined state. Then, the copy sheets of the next and subsequent pages similarly fall onto the sheet receiving member and are stacked thereon. Next, the sheet receiving member moves toward the second end. As a result, the rear end of the copy sheet bundle on the sheet receiving member comes into contact with the sheet side edge guide member disposed on the second end side, and the copy sheet I/bundle comes into contact with this side edge guide member. The copy sheet bundle is regulated by the sheet receiving member, and its posture is corrected in parallel to the sheet feeding direction, and in this state, the copy sheet bundle is placed unevenly on the second end side of the sheet receiving member.

On the other hand, the copy sheet of the next copy falls onto the sheet receiving member 2 located on the second end side. This copy sheet similarly comes into contact with the sheet leading edge guide member of the sheet receiving member, and its rear end deviates to the first end side in the opposite direction to the copy sheet in the previous section and falls onto the sheet receiving member. do. Then, after all the copy sheets in that section have fallen onto the sheet receiving member, the sheet receiving member moves toward the first end. As a result, the copy sheet bundle whose rear end is deviated toward the first end comes into contact with the side edge guide member disposed on the first end, and its posture is corrected, and its longitudinal direction is corrected. Accurately matches the feeding direction of the copy sheet. This copy sheet bundle is placed unevenly on the second end side of the sheet receiving member 2.

In this way, after one set of copy sheets has been fed for all pages, the sheet receiving member moves, and by repeating this, the copy sheet bundles are alternately shifted onto the sheet receiving member in each set. It is placed on the table.

In this case, since the side edges and front edges of each copy sheet bundle are regulated and arranged by the side edge guide member and the front edge guide member, respectively, it can be stapled as is with a stapler etc., and the next The bookbinding process is extremely easy.

[Embodiments] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a plan view showing a sheet discharge stacker device according to an embodiment of the present invention, FIG. 2 is a front sectional view thereof, and FIG. 3 is a perspective view showing a sheet receiving member thereof. Also, the fourth
5 and 5 are plan views showing the operation of this embodiment, and FIG. 6 is a schematic side sectional view showing a collator in which this paper discharge stacker device is incorporated.

First, the collator will be explained with reference to FIG. On the front of the collator main body 2, a plurality of bins 3 (eight in the illustrated example) are arranged vertically at appropriate intervals from each other so as to protrude forward from the collator main body 2. . Inside the collator main body 2, paper feed rollers 4 are arranged corresponding to each bin 3, respectively. Through its rotation, the paper feed roller 4 takes out the highest copy sheet 1 from the bundle of copies 1 placed on the bin 3 and takes it into the collator main body 2. . A conveyor belt 5 is disposed inside the collator main body 2 so that its conveyance direction is perpendicular. The copy sheet 1 is moved vertically downward by the conveyor belt 5. Further, a paper discharge roller 7 consisting of a pair of rollers rotating in opposite directions is disposed at the lower part of the collator main body 2, and a copy sheet 1-1 that has been conveyed downward by the conveyor belt 5 is disposed. is delivered by a paper discharge roller 7 toward a paper discharge stacker device 10 disposed outside the collator main body 2.

A paper discharge stacker device 10 according to this embodiment is disposed in front of the copy sheet 1 in the feeding direction by the paper discharge rollers 7. In this paper stacker device 10, as shown in FIGS. 1 to 5, a paper discharge tray 11 is inclined so as to be slightly lowered toward the front in the feeding direction of the copy sheet 1.
is installed. This paper discharge tray 11 is reciprocated in a direction perpendicular to the feeding direction of the copy sheet 1 shown by arrow A in FIG. 1 (also shown by arrow B in FIG. 1). It is supported by a base 20 of the main body of the apparatus via rollers 12 so as to be able to do so. Further, a motor 13 is installed near the paper ejection tray 11, and the rotational force of the motor 13 is applied to the paper ejection tray 1 through a crank 14.
1. As a result, when the motor 13 rotates in forward and reverse directions, the rotation of the motor 13 is converted by the crank 14 into reciprocating movement of the paper discharge tray 11.

Further, the paper ejection roller 7 is rotatably supported by a shaft 15. The rotating shaft 15 is disposed on a pair of side plates 16 erected on a base 20 of the main body of the apparatus, with its axial direction oriented perpendicular to the feeding direction of the copy sheet 1.

A first side edge guide of the copy sheet 1 is provided on one end (hereinafter referred to as the second end) of the paper ejection tray 11 in the moving direction and near the rear end of the paper ejection tray 11. 17 is side plate 1
It is fixed and installed at 6. Further, on this second end side, near the center of the side edge of the paper ejection tray 11, there is a
Another side edge guide 18 is arranged fixedly on the device body.

On the other hand, the other end (hereinafter referred to as
A pair of guides 19 are disposed on the side (referred to as the first end). This guide 19 is supported by a slide rail 21 provided on a base 20 so as to be slidable in the direction of movement of the paper discharge tray 11 (direction of arrow B). The slide area of the guide 19 is cut out in the paper discharge tray 11, and the guide 19 projects upward from the paper discharge tray 11 through this cutout.

Further, a leading edge guide 22 for the copy sheet 1 is disposed at the front end of the paper tray 11 in the sheet feeding direction. A locking plate 23 is provided upright at the tip of the guide 22. This guide 22 slides with appropriate resistance against the paper ejection tray 11 and can advance forward from the paper ejection tray 11 in the copy sheet feeding direction or retreat into the paper ejection tray 11. , is supported by this paper discharge tray 11. Also,
This guide 22 is inclined in a direction (a first
In the figure, it moves back and forth as indicated by arrow C). Therefore, when this guide 22 advances forward in the direction of arrow C, the locking plate 23 disposed at the tip end of the guide
move in a direction away from the side edge on the second end side. When the paper ejection tray 11 is deviated toward the guide 19, that is, toward the first end, the center of this locking plate 23 is located at the feeding center of the copy sheet 1, as shown in FIG. D (in the figure,
- indicated by a dotted chain line) on the first end side. Also,
When the paper discharge tray 11 is deviated toward the guide 17° 18, that is, toward the second end, the center of the locking plate 23 is shifted from the feeding center of the copy sheet 1, as shown in FIG. Moko's second
located at the end of the

Next, the operation of the discharge stacker device configured as described above will be explained. First, the positions of the guides 19 and 22 are adjusted according to the size of the copy sheet 1. That is, when the copy sheet 1 is large, such as 84th edition, the guide 19 is moved away from the guides 17 and 18, and the locking plate 23 of the guide 22 is moved forward. As a result, guide 17.
The area surrounded by 18, 19, and 22 is made to have a width larger than the size of the 84th plate by at least the reciprocating distance of the paper discharge tray 11.

Thereafter, as shown in FIG.
on the first end side, for example, by 15 mm from the feed center.
Move it so that it deviates. Then, leading edge guide 2
The center of the second locking plate 23 is located on the first end side closer to the guide 19 than the feeding center of the copy sheet 1.

On the other hand, in the collator, the uppermost copy sheet 1 is sequentially taken out from the bundle of copy sheets 1 stacked in each bin 3 by a paper feed roller 4, and the copy sheet 1 is conveyed by a conveyor belt 5, and then transferred to a paper discharge roller. 7, the sheets are sent to the discharge stacker device 10 in, for example, page order.

Since the center of the locking plate 23 is offset from the feeding center of the copy sheet 1, the copy sheet 1 driven by the paper discharge roller 7 and fed to the paper discharge tray 11 is not locked. It abuts against the plate 23 at a position deviated from the center of the plate 23 by about 15 mm toward the second end. Therefore, the moment of inertia generated by the collision with the locking plate 23 acts on the copy sheet 1, and as shown by the solid line in FIG. 4, the copy sheet 1-1 rotates slightly clockwise. The rear end portion is located closer to the guide 17. The copy sheet 1 is thus dropped and placed onto the paper discharge tray 11 in a slightly inclined state with respect to the feeding direction A.

After all 100 copies of the copy sheets 1 are fed from the collator and a bundle of copy sheets 1 corresponding to one copy of the original is stacked in the same posture on the discharge paper tray 11'2, the motor 13 is rotated. As a result, the paper ejection) and Ray 11 move in the direction of arrow B, and the fifth
As shown in the figure, it is located on the second end side, for example, offset by about 15 mm from the feeding center. Since the rear end of the bundle of copy sheets 1 is tilted toward the guides 17 and 18, during this movement, the bundle of copy sheets 1
The rear end of the bundle of copy sheets 1 comes into contact with the guides 17 and 18, and the posture of the bundle of copy sheets 1 is corrected by the guides 17 and 18. Therefore, at the time when this movement is completed, the longitudinal direction of the copy sheet 1 exactly coincides with the feeding direction, and its position is on the second end side, as shown by the broken line in FIG. In other words, the paper output tray 11 is deviated toward the guides 17 and 18.
The second is loaded.

Also, after the paper ejection l/ray 11 stops at this position,
The center of the locking plate 23 of the front edge guide 22 is the copy sheet 1.
It is located on the second end side closer to the guides 17 and 18 than the center of feeding.

Next, the highest copy sheet 1-1 of each bundle of copy sheets 1 stacked in the bin 3 is sequentially taken out from the collator by the paper feed roller 4, and the copy sheet 1 for the next process is transferred to the conveyor belt. 5 and are continuously sent out from the paper ejection roller 7 to the paper ejection stacker device 10 in page order.

In this case, the copy sheet 1 comes into contact with the locking plate 23 at a position offset from the center of the plate by about 15 mm toward the first end. Therefore, the moment of inertia generated by the collision with the locking plate 23 acts on the copy sheet 1, and as shown by the solid line in FIG. 5, the copy sheet 1 rotates slightly counterclockwise, and then The end portion is positioned closer to the guide 19 and loaded. The copy sheet 1 is thus dropped and placed onto the paper discharge tray 11 in a slightly inclined state with respect to the feeding direction A.

After that, copy sheets 1 are taken out one by one from all the bins 3 and fed to the paper output tray 11.
1 moves toward the first end (guide 19) as shown in FIG. As a result, the rear end of the bundle of copy sheets 1 comes into contact with the guide 19, its side edges are aligned along the guide 19, and the bundle of copy sheets 1 is corrected in parallel to the feeding direction.

Thereafter, by repeating the same operation, as shown in FIG. 2, the bundle 30 of copy sheets 1 is divided into two types: one that is deviated toward the second end, and one that is deviated toward the first end. are repeated alternately and placed on the paper discharge tray 11. The sheet bundle 30 that has been page-aligned and sorted in this way is stacked on the paper output tray 11 with its side edges and front edges aligned, so it can be stapled as is in the subsequent bookbinding process. It is only necessary to bind the sheet bundle 30.

=17- Therefore, the bookbinding process is extremely simplified and speeded up.

The invention is not limited to the embodiments described above. For example, the amount of deviation between the center of the sheet leading edge guide member and the feeding center of the copy sheet 1 is 15 as in the two series of embodiments.
Of course, the distance is not limited to mm, and various settings can be made depending on various conditions such as the type and size of the copy sheet.

Further, as is clear from the above description, the present invention provides a method for placing a fed copy sheet on a sheet receiving member 2 in a state where it is always forcibly biased to one side. The bundle is configured to be corrected by side edge guide members. Therefore, as long as such effects can be obtained, the configuration can be modified in various ways within the scope of the claims of the present application. For example, the moving direction of the sheet receiving member is limited to the direction perpendicular to the copy sheet feeding direction as in the above embodiment, and the moving direction of the sheet receiving member and the copy sheet feeding direction are at an angle of less than 90'. You can also make them intersect.

8 [Effects of the Invention] According to the present invention, copy sheets that are sorted and fed can be sorted and fed by reciprocating movement of the sheet receiving member, so that the front edges and sides of the copy sheets are separated under the action of the front edge guide member and the side edge guide members. Since the edges of the stack of copy sheets are aligned and placed on the sheet receiving member 2 in an alternately biased manner, the edges of the stack of copy sheets are sorted and stacked on the sheet receiving member 2 at the same time. This allows each sheet bundle to be properly aligned. Therefore, it is possible to extremely easily obtain a copy sheet bundle in which the edges of each bundle are aligned. Therefore, in the post-process, the sheet bundle can simply be stapled using a stapler, which simplifies the bookbinding process.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing a sheet discharge stacker device according to an embodiment of the present invention, FIG. 2 is a front sectional view thereof, FIG. 3 is a perspective view similarly showing a sheet receiving member thereof, and FIGS. This figure is also a plan view showing the operation of this embodiment, and FIG. 6 is a schematic side sectional view showing a collator in which this paper discharge stacker device is incorporated. 1; Copy sheet, 7; Paper discharge roller, 10; Paper discharge stacker device, 11; Paper discharge tray, 17.18° 19.22; Guide, 23; Locking plate, 30; Sheet bundle

Claims (4)

[Claims] (1) Sorting the copy sheets that are taken out in a predetermined order from a plurality of sheet bundles in which multiple copies of each page of a multi-page original are stored separately for each page. A sheet receiving member for receiving the copy sheet, and a sheet receiving member support means for supporting the sheet receiving member so as to be movable in a predetermined direction intersecting the feeding direction of the copy sheet. and a driving means for reciprocating the sheet receiving member between the first and second ends in the predetermined direction.
a pair of sheet side edge guide members disposed on the first and second end sides, respectively, and a pair of sheet side edge guide members disposed at the front of the sheet receiving member in the feeding direction of the copy sheet to be fed; a sheet leading edge guide member that locks the sheet, and when the sheet receiving member is located at the first end, the center of the sheet leading edge guide member is lower than the feeding center of the copy sheet. When the sheet receiving member is located on the first end side and the sheet receiving member is located on the second end in the predetermined direction, the center of the sheet leading edge guide member is lower than the copy sheet feeding center. A paper discharge stacker device, characterized in that it is located on the second end side. (2) The sheet discharge stacker device according to claim 1, wherein the sheet side edge guide member on the second end side is immovable. (3) The sheet side edge guide member on the first end side is adjustable in position in the predetermined direction according to the width of the copy sheet. Paper stacker device. (4) The sheet leading edge guide member is mounted so as to be movable in a direction inclined with respect to the sheet feeding direction so as to approach the first end side toward the front in the sheet feeding direction. Claims 1 to 3 characterized in that
The paper discharge stacker device according to any one of the above.