JPS5982259A - Paper delivering device - Google Patents

Abstract

PURPOSE:To enable sheets of paper to be properly arranged in a paper delivery device for delivering the sheets from a paper delivery port to a delivery tray of an electronic copier or the like by catching the sheets sent out of a delivery roller to rotate them about 180 deg.. CONSTITUTION:A copy delivery unit of an electronic copier is constituted of a copy delivery portion 1 and a delivery tray portion 2 so that copies 8 furnished from a conveyer means 7 are sequentially received and stacked on a delivery tray 9. Then, the copy delivery portion 1 is provided with a disk 4 rotatably controlled through a clutch 6. This disk 4 is formed with three grooves 18 extending from the peripheral portion gradually to the inside. And when a copy 8a is sent through a delivery roller 3 by a conveyer means 7 and sent to the depth of the groove 18a of the disk 4, the disk 4 is rotated. At this time, an end of the copy 8a abuts against a stopper 12 to be arranged properly together with other ends of copies and dropped onto the tray 9.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper ejecting device for a paper processing device such as an electronic copying machine or an offset printing machine.
The present invention relates to a paper ejection device that includes a paper ejection roller and a paper ejection tray and ejects paper from a paper ejection port to the ejection tray.

An example of a paper processing device, for example, an electronic multiplexer. In the paper ejecting device of the machine, when processed paper, that is, a made copy, is ejected from the ejection port by an ejection roller or the like, it is ejected into the space of the ejection tray, and the paper is ejected into the tray by its own weight or by the copy presser. It was stacked on top. Not only did such a device not only result in the copies not being accurately aligned on the output tray, but also often caused paper jams at the output. Furthermore, if the sizes of the copies to be ejected are different, it is necessary to provide a plurality of the ejection trays or to provide a means for adjusting the size on the ejection tray, which makes the apparatus complicated and increases costs. was there.

The present invention has been made to compensate for the shortcomings of the prior art, and is capable of ejecting paper processed by a paper processing device to the ejection 1 in an accurately aligned state and preventing paper jams.
It is an object of the present invention to provide a paper discharging device having a cylindrical structure capable of discharging paper of various sizes without requiring any special means.

To achieve this object, the present invention provides a paper discharging device that includes a paper discharging roller and a paper discharging tray and discharging processed paper from a discharging port of a paper processing device. A disk installed at the discharge port and a drive that rotates the disk! FI+ means and the above paper discharge 1j
It consists of a driving means for moving one tray downward by -[1], and a copy stopper for aligning the leading edge of the paper ejected into the paper ejection tray. At least one extending paper leading edge capture groove is provided.

According to the present invention, the paper discharged by the discharge roller and sent to 1 is captured by the paper leading edge capture groove of the disk, rotated approximately 180 degrees, and placed on the discharge tray. At this time, the peripheral edge of the disk presses the paper immediately after it has been placed,
Since the leading edge of the paper is pressed against the end of the output tray on the copying machine main body side or the stopper placed there, IIIE
The leading edge of the paper can be aligned with +E 6 (i).In this way, the paper ejecting device of the present invention is configured to align the leading edges of the copies, so it can be used even for copies of different sizes.
・No need for ray size switching mechanism, etc. The shape and number of the paper leading edge capture grooves are preferably determined depending on the material of the paper, the paper conveyance speed, etc. In addition, by appropriately selecting the shape and number of such paper leading edge capture grooves, the paper retention force of the disk can be increased, and if the disk is placed adjacent to the paper conveyance device upstream of the ejection roller, ejection can be improved. It is possible to eliminate the need for rollers.

Embodiments of the present invention will be described below with reference to the drawings. Referring to FIG. 1, a copy ejecting device of an electronic copying machine is shown, and this copy ejecting device is divided into a copy ejecting section 1 and an ejecting tray section 2. The copy ejection section 1 is composed of a copy ejection roller 3, a heald 5 that transmits driving force from the roller to the disk 4, and a clutch 6 that controls the drive of the disk 4. A copy conveying means 7 is arranged adjacent to the copy ejecting roller 3, and the copy 8 is transferred to the copy ejecting 1 by this copy conveying means.
” is transmitted to roller 3. On the other hand, the ejection tray section 2 includes an ejection tray 9 that can move up and down, a motor lO that drives the ejection tray, and a driving force of the drive motor 10 that is connected to the ejection tray 9.
The output tray 9 is controlled by a tray position detection sensor 13, a copy stack amount detection sensor 14, , tray overtravel switches 15, 16, and tray downsizing switch 17. The tray position detection sensor 13 detects the initial position of the tray 9. When the tray 9 is detected by the sensor 13, the motor 10 is deenergized and the tray 9 is set to the initial position A. The copy stack amount detection sensor J-14 detects when the copy stack amount has reached a fixed state, and is also called a star or double force sensor, and uses a weight detection method or detects the position of the tray 9, for example. method etc. are used. When the copy stack amount detection sensor 14 detects that the copy stack amount has reached a fixed state, the copying operation is stopped and the ejection tray 9 is moved to the broken line! f
Descend to the position shown on p 13. Make sure that the ejection tray 9 is at the dashed line area B by pressing the tray down limit switch 1.
7 detects and displays it to the operator. The tray over safety switches 15 and 16 are mainly used as a safety switch to prevent the discharge tray 9 from moving too far toward the upper and lower blades.

As shown in FIG. 2, the disk 4 has three grooves 18 (IN) formed therein that extend gradually inward from its periphery, and is rotated in the direction of the arrow through the drive heald 5. .

All the grooves 18 have the same shape, and the disc 4
It is formed at a position such that it has the same shape every time it rotates by 120''.

Next, the operation of the disk 4 will be explained using FIG. First, the first copy 8a is ejected by the copy ejection port 3, and when it is fed to the depths of the groove 18a of the disc 4 (
3A), the disk 4 rotates 1/3 of a turn, that is, 120 degrees, in the direction of the arrow under the control of the clutch 6, and the tip of the copy 8a hits the copy stopper 12, causing the tip of the copy 8a to move backward. The groove 18a tries to come out as it is pushed by (see Fig. 3B). At the same time, the second copy 8b is inserted into the next groove 18b by the copy discharge roller 3 (see Figure 3c). When the disk 4 is rotated another 1/3 rotation, the first copy 8a
are completely removed from the groove 18a and stacked on the tray 9 (see Figure 3D). Thereafter, as the disk 4 rotates, a force is applied to the copy 8a by the peripheral edge 4' of the disk 4 in the direction of the arrow, and a force is also applied to press the copy 8a against the tray 9. It is stacked on top of 9 and goes 1ζ.

Next, the operation of the ejection tray 9 will be explained. When no copies are stacked, the ejection tray 9 is at the initial position, that is, at the dotted line indicator.

This is detected by the tray position detection sensor.

Next, as the copies are sequentially stacked on the tray, the ejection tray is gradually driven to one position by the drive motor IO. When the amount of copies stored in the output tray reaches a fixed amount, the copy stack amount detection sensor detects this and starts copying.
゛Sends a signal to the main body of the machine and causes it to stop operating. Thereafter, the discharge tray 9 descends to the broken line portion I3 and stops.

Tray down limit switch 7 detects this and displays it to the operator. This display allows the operator to copy
Work to take out the JF output tray 9.

In the embodiment shown in FIG. 4, the ejection roller is eliminated and the disk 24 is placed directly adjacent to the copy feeding means 27.
There is. In this example, the copy conveying means 27 includes the copy 28
Since there is no force required to send out the IC to the ejection tray 29, it is preferable to make the IC holding force stronger than that of the disk 4 shown in FIG. The following explanation shows an example in which the present invention is applied to an electronic copying machine, but the present invention can also be applied to the discharge section of an offset printing machine used at a high speed.

According to the present invention, the groove provided in the disk captures the paper fed out by the ejection roller and holds it approximately 180 degrees.
° It is configured to rotate and align the leading edge of the paper with the edge of the output tray, so it is not only possible to align the paper to il:, ii (#), but also to align paper of different types and sizes. There is no need for an ejection size switching mechanism, etc. Also, since the paper placed on the ejection tray is pressed down onto the ejection tray by the peripheral edge of the disk, the paper does not lift up and paper jams in the ejection section are avoided. There is little risk of this happening.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a paper ejection device according to the present invention. FIG. 2 is an enlarged view of a disk not shown in FIG. 1 and used in the paper ejecting device. 3A to 3D are explanatory views of the operation of the disk in FIG. 2. FIG. 4 is a schematic diagram of another embodiment of the invention from FIG. 1. 1... Ejection section, 2... Ejection tray section, 3... υ[
Output roller, 4.24..., disk, 7.27... paper conveyance means, 8.8a, 8b, 2810. Copy, 9...
- Ejection tray, 1o...Motor, 12...Copy stopper, 18° 18a, 18b...Copy capture groove. Figure 1 6 Figure 3A Figure 3B Figure 4 2nd

Claims (1)

[Claims] A paper ejection device that includes a paper ejection roller and a paper ejection tray and ejects processed paper from an ejection port of the paper processing device,
a disk provided in the ejector adjacent to the ejection roller; a drive means for rotationally driving the disk; a drive means for moving the paper ejection tray one step downward; and a disk ejected into the paper ejection tray. a copy stopper for aligning the leading edge of the paper, and the disc is provided with at least one paper leading edge catching groove extending inwardly from the periphery of the disk.