JPS63225064A - Paper sheet discharging device - Google Patents

Abstract

PURPOSE:To obtain a small driving power source for the stable transfer operation by supporting the front edge part of a tray for discharged paper by the first supporting body and supporting the bottom part by the second supporting body and installing a driving part for shifting the tray in the perpendicular direction at the intermediate position between the first and second supporting bodies. CONSTITUTION:A paper sheet 13 sent from a sending device 1 is accommodated into a tray 2 for discharged paper. The front edge part of the tray 2 for discharged paper is supported by the first supporting bodies 3 and 4, and the bottom part is supported by the second supporting body 5 and can be shifted in the lateral direction. Further, a power transmission part 8 is arranged at the intermediate position between the first and second supporting bodies. The power of a motor 6 in the power transmission part 8 is transmitted to the tray 2 through a worm gear 14, worm wheel 15, roller 17, and a groove part 16, and the tray 2 is transferred in the direction perpendicular to the paper feeding direction, and the paper sheet 13 is assorted. With such constitution, the load 18 due to the paper sheet 13 is dispersion-supported, and the moment 19 due to the load is not generated. Therefore, the stable movement can be obtained by a small power source.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a paper ejecting device for a copying machine, a printing machine, a printer, a facsimile machine, etc.

[Prior Art] Conventionally, as this type of paper ejecting device, there has been the following (Japanese Patent Publication No. 61-75768).

The first type is one in which diagonal rollers are installed in the paper passing path and act on every other set to change the ejecting device for ejected paper.

The second type is one in which a paper sending device (a pair of paper ejection rollers) to an ejection paper tray is movable to a predetermined position in a direction perpendicular to the paper conveyance direction.

A third method is to move the ejected paper tray located outside the main body of the apparatus back and forth for each set to shift each set.

[Problems to be Solved] The conventional paper ejection device described above has the following drawbacks.

In the first method, the diagonal rollers in the paper path are configured to act on every other set, so in order to perform shifting, a transport bus for shifting that can hold one sheet of paper is required. shall be. Further, in a paper conveying device based on a central reference, there is no reference for shifting, and a complicated mechanism is required to create this reference.

In the second type, the mechanism is such that the paper feeding device of the paper ejection tray is moved in a direction perpendicular to the paper transport direction, so that the paper ejection direction is controlled by the paper ejection roller pair and the paper ejection roller pair. The distance between the paper roller and the roller pair located upstream must be at least equal to the length in the paper ejection direction.
This fruiting device itself becomes large.

In the third type, the mechanism is such that the discharge paper trays located outside the main body of the apparatus are moved back and forth one set at a time, so there are objects that move outside the machine, which poses a great danger to the operator. Also,
External forces are likely to act on them, which can lead to malfunctions and other problems, and a large drive source is required.

Further, in the conventional paper ejecting device, as shown in FIG. 4, a moment 21 due to a load 20 of the stacked papers 13 acts around a support 22, and a drive unit (not shown) located near the support 22 is used. However, it also has the disadvantage of causing an excessive load.

[Means for Solving Problems] The present invention has been made in order to solve the above-mentioned conventional problems, and as a means for solving the problem, it includes a paper feeding device provided at a paper ejection port, and a paper feeding device for the paper feeding device. An ejected paper tray provided nearby to store the ejected paper, a support body that supports the ejected paper tray, and a drive unit that transmits power to move the ejected paper tray perpendicular to the paper feeding direction. The support body includes a first support body and a second support body, and these supports support two points, an end and a bottom of the output paper tray, and the power transmission unit The present invention provides a paper ejection device in which a transmission section is arranged at an intermediate position between the first support body and the second support body.

[Example] Next, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a longitudinal sectional view of a paper ejection device according to an embodiment of the present invention, and FIGS. 2 and 3 are detailed views showing the power transmission section of FIG. 1.

The paper discharging device includes a paper discharging device 1 provided at a paper discharging port, a discharging paper tray 2 disposed in front of the paper discharging device 1, and a first support that supports the discharging paper tray 2. It includes bodies 3, 4, a second support 5, and a power transmission section 8 that transmits the power of a motor 6, which is a drive section, and moves the ejected paper tray 2 perpendicular to the paper feeding direction 7.

The paper feeding device 1 includes a pair of paper ejection rollers 9 and 10,
It consists of a paper guide section 11 and a static elimination brush 12 before and after the paper ejection rollers 9 and 10.

The ejected paper tray 2 is arranged obliquely toward the paper sending device 1 side, and is arranged at a position to receive the paper 13 sent out from the paper sending device 1.

The first support 3.4 consists of a support 3 that presses the upper surface of the front end of the ejected paper tray 2, and a support 4 that presses the lower surface of the front end. It supports the front end of the paper tray 2. The second support body 5 supports the output paper tray 2 from the bottom surface.

As shown in FIG. 1, the power transmission section 8 is connected to the first support 3.
4 and the second support 5. As shown in FIGS. 1 to 3, the power transmission section 8 includes a worm gear 14 directly connected to the motor 6, a worm wheel 15 that meshes with the worm gear 14, and a discharge paper tray provided on the upper surface of the worm wheel 15. It consists of a roller 17 that fits into a groove 16 provided on the lower surface of the roller 2.

Next, the operation of the paper ejecting device according to this embodiment will be explained.

After the printing process has been completed, the paper 13 is conveyed along the paper guide section 11 of the delivery device 1, and then passed through the paper ejection rollers 9, 1.
0, the paper is discharged to the discharge paper tray 2 via the static elimination brush 12.

The ejected sheets 13 stored in the ejected paper tray 2 are sorted. Sorting is performed by controlling the motor 6 by a control device (not shown). The power of the motor 6 is transmitted through the ohm gear 14 of the power transmission section 8. Worm wheel 15. Roller 17. It is transmitted to the ejected paper tray 2 via the groove 16, and the ejected paper tray 2 moves in a direction perpendicular to the paper feeding direction 7 and reaches a predetermined position. As a result, the sheets 13 are sorted.

At this time, the load 18 due to the paper 13 stored in the ejected paper tray 2 is distributed and supported by the first support 3.4 and the second support 5. Furthermore, since the power transmission section 8 is located between the first and second supports 3, 4.degree.5, no moment 19 is generated due to the load 18.

[Effects of the Invention] As explained above, the present invention is composed of a support, a first support, and a second support, and the ends and bottom of the output paper tray are separated by these supports. Since it is supported at a point and the power transmission part is placed in the middle position between the first and second supports, there is no moving object outside the main body of the device, which has the effect of eliminating danger to the operator. . In addition, there is no problem such as malfunction due to the action of external force, and stable movement can be obtained with a small driving source.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a paper ejection device according to an embodiment of the present invention, and FIGS. 2 and 3 are detailed views showing the power transmission section of FIG. 1. Further, FIG. 4 is a diagram showing an outline of a conventional paper ejecting device and the load placed on the device. 1: Paper feeding device 2: Paper ejection tray 3.4: First support 5: Second support 6: Motor (drive section) 7: Paper feeding direction 8: Power transmission section 13: Paper

Claims (1)

[Scope of Claims] A paper delivery device provided at a paper delivery port, a delivery paper tray provided near the paper delivery device for storing delivered paper, and a support for supporting the delivery paper tray. and a power transmission section that transmits the power of the drive section and moves the ejected paper tray perpendicular to the paper feeding direction, and the support body is composed of a first support body and a second support body, A paper ejecting device in which the ejected paper tray is supported at two points, an end and a bottom, by these supports, and the power transmission section is arranged at an intermediate position between the first support and the second support.