JPH054770A - Stacker - Google Patents

Abstract

PURPOSE:To avoid the interference between adjacent sheets and stack the sheets in each row in the arranged state in a stacker for receiving the sheets discharged simultaneously in plural rows. CONSTITUTION:Slant faces 9a, 9b, 9c, 9d inclined in the right-angled direction to the sheet discharge direction are formed at the supporting face of a stacker 8, in correspondence with sheets 5 discharged in plural rows. Approximately vertical arranging faces 10b, 10c, 10d are formed with step difference between the respectively adjacent slant faces, and an arranging face 10a is also farmed at the lowest part of the slant face 9a at the end part. Each discharged sheet 5 thereby slides under its own weight on each slant face so as to be stacked in the state of the end part abutting with the arranging face.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a recording device, etc.
The present invention relates to a stacker that receives sheets discharged in multiple rows.

[0002]

2. Description of the Related Art Conventionally, in copying machines, printers, etc.,
A stacker that receives and stacks discharged sheets is used. An ordinary stacker has a plate-like shape with a simple flat upper surface for receiving paper, or, like the stacker 1 in FIG. 5, has a convex portion 2 on the upper surface for reducing friction when the paper passes. Was provided in the same direction as the paper transport direction, and the paper was sent in a row one after another on the paper. In addition, there is also known one configured to classify discharged sheets (for example, Japanese Patent Laid-Open No. 61-61160).
-75768, JP-A-1-187171). In any case, the paper was discharged in one line.

On the other hand, recently, the width is A0 size, A1
Using an XY cutter that can record A4 size, A3 size, etc. on roll paper with a wide size and cut the recording paper to any size in both the vertical and horizontal directions,
An apparatus has been developed which cuts the recording paper into A4 size, A3 size and the like and discharges it. In this case, as shown in FIG. 6, the recording paper 3 having a wide width (for example, A0) is used as the XY cutter 4.
Is cut into small size paper 5 (for example, A4 size) by
The sheets are discharged in a plurality of rows at the same time, and in order to receive them, a stacker 6 having a wide support surface 6a is used. The support surface 6a of the stacker 6 is simply a flat surface or has a small convex portion as in the stacker 1 of FIG.

[0004]

However, in such a configuration, the adjacent sheets 5 and 5 discharged at the same time often cross each other and partially overlap each other. Therefore, the sheets are not neatly arranged on the stacker 6, and thus the stacking is not possible. There was a problem that it was difficult to take out the formed paper from the stacker. Further, there is a problem that sheets ejected adjacent to each other interfere with each other and are inverted, and the sheets are turned upside down.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a stacker for stacking sheets discharged simultaneously in a plurality of rows so that they can be neatly aligned and easily taken out. And

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a stacker supporting surface for receiving sheets ejected in a plurality of rows so that the sheets are ejected in the sheet ejection direction so as to correspond to the sheets in each row. It is provided with a structure in which a slope inclined in a direction perpendicular to the above is formed and a step is formed between adjacent slopes.

[0007]

According to the present invention, when the sheets to be discharged at the same time fall on the supporting surface of the stacker, the weight of the supporting surface lowers due to its own weight in the direction perpendicular to the discharging direction.
The end faces of the sheets are aligned, and a difference in the height direction is generated between the end faces of the adjacent sheets. Therefore, the sheets do not interfere with each other, vertical reversal is eliminated, and the sheets are easily taken out.

[0008]

1 is a schematic perspective view showing a stacker 8 and an XY cutter 4 according to an embodiment of the present invention. This XY
The cutter 4 has the same structure as the conventional one shown in FIG. 6, and for example, the continuous paper 3 having a width of A0 size is cut into four rows of A4 size paper 5 and discharged.
The stacker 8 arranged downstream of the XY cutter 4 is
It has a supporting surface for receiving the sheets 5 discharged in four rows, and the supporting surface has slopes 9a, 9b inclined in a direction perpendicular to the sheet discharging direction so as to correspond to the sheets in each row.
9c and 9d are formed, and a step is provided between the adjacent slopes, and the alignment surfaces 10b, 10c, and 1 that are substantially vertical to the position.
0d is formed. In addition, a vertical alignment surface 10a formed by stacker side plates is formed at the lowermost portion of the slope 9a at the left end. The length of each slope 9a, 9b, 9c, 9d is formed to be equal to or slightly smaller than the width of the discharged paper 5. In addition, a concave portion 11 is formed above each of the slopes so that a hand can easily be put in when taking out a sheet.

In the stacker 8 having the above structure, when four sheets 5 are discharged from the XY cutter 4 at the same time, each sheet 5 falls on the corresponding slopes 9a, 9b, 9c, 9d, and the slopes due to its own weight. It slides along and stops at the position where the edges of the paper hit the alignment surfaces 10a, 10b, 10c, 10d. Thereafter, when the sheets 5 are similarly fed out one after another, as shown in FIG.
a, 9b, 9c, 9d on which the ends are aligned with the alignment surface 10a,
The sheets 10b, 10c, and 10d are stacked in an aligned state, and the adjacent sheets 5 and 5 are displaced in the height direction. Therefore, it is extremely easy to take out the sheets 5 stacked on the stacker 8. Further, when the sheets are stacked on the stacker 8, the adjacent sheets do not interfere with each other, and therefore the sheets are not inverted or disturbed.

3 and 4 show another embodiment of the present invention. The stacker 12 of this embodiment has a large number of stackers 12 extending in the paper discharge direction on a support surface for receiving the paper 5 discharged in four rows. It has a protrusion 13. The height of the protrusion 13 gradually changes at a position corresponding to the paper in each row, and the upper surface of the protrusion 13 forms an inclined surface that is inclined in a direction perpendicular to the paper transport direction. Further, a step is provided between the adjacent slopes, and the side surface of the protrusion 13 at that position is a vertical alignment surface 14.

Also in the stacker 12 of this embodiment, as can be seen clearly from FIG. 4, it is possible to stack a large number of sheets 5 in an inclined state and in a state where the sheet edges are abutted against the aligning surface 14 and aligned. It is easy to take out.

Although all of the above-mentioned embodiments show the stacker for receiving the sheets discharged in four rows, the present invention is not limited to this case, and the stacker for receiving the sheets discharged in a plurality of rows other than four rows. It goes without saying that it is also applicable to.

[0013]

As is apparent from the above description, according to the present invention, the stacker supporting surface for receiving sheets ejected in a plurality of rows is perpendicular to the sheet ejecting direction so as to correspond to the sheets in each row. Since a slope that slopes in the same direction is formed and a step is formed between adjacent slopes, multiple sheets that are ejected at the same time are supported by the slopes that correspond to each, and the slopes of the slopes cause the paper to be ejected under its own weight Sliding in a direction perpendicular to the direction, aligning the end faces of the sheets, and stacking them with the end faces of the adjacent sheets offset from each other in the height direction, there is no inversion of the sheets on the stacker, Moreover, there is an effect that it is easy to take out the accumulated sheets.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a stacker and an XY cutter according to an embodiment of the present invention.

FIG. 2 is a front view showing a state where sheets are stacked on the stacker of FIG.

FIG. 3 is a schematic perspective view showing a stacker and an XY cutter according to another embodiment of the present invention.

FIG. 4 is a front view showing a state in which sheets are stacked on the stacker in FIG.

FIG. 5 is a schematic perspective view of a conventional stacker.

FIG. 6 is a schematic perspective view showing a conventional stacker and an XY cutter.

[Explanation of symbols]

 3 recording paper 4 XY cutter 5 paper 8 stacker 9a, 9b, 9c, 9d slanted surface 10a, 10b, 10c, 10d aligned surface

Claims (1)

Claim: What is claimed is: 1. A support surface for receiving sheets discharged in a plurality of rows, the support surface being provided at a portion corresponding to the sheets in each row.
A stacker comprising slopes that are inclined in a direction perpendicular to the sheet discharge direction, and a step is formed between adjacent slopes.