JPS6019656A - Sorting unit - Google Patents

Abstract

PURPOSE:To store sheets as many as possible in a tray and to prevent alowering of storing capacity for sheets thick in the folding portion such as Z-folded by detecting when sheets in a storing tray reaches the regular amount and retreating a size changing rod extending over plural stages. CONSTITUTION:As Z-folded sheets 2 are sorted in a storing tray 1, the sheets 2 stored in the tray 1 are stopped by a size changing rod 5 and sequentially stacked. When the sheets reach a certain amount, it is detected by a detector 6 to output a signal, so that the size changing rod 5 retreats from a position A to position B. With the retreatment, the sheets 2 in the tray 1 naturally drop to the position of the size changing rod 5. The sheets 2 to be suquentially stored are sequentially stacked on the trailing ends of the sheets 2 already stored, and when the sheets 2 stacked on the second stage reach a regular amount, the size changing rod 5 again retreats to a position C, so that the sheets 2 in the tray 1 naturally drop to the position of the size changing rod 5, and the sheets 2 are again stored in the tray 1. Thus, a lot of sheets can be stored without disorder.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention This invention relates to a sorter device for collating copied sheets.

BACKGROUND ART As a sorter device for collating sheets copied by a conventional copying machine, there is a known sorter device in which a storage tray b is provided with a resizing rod α that is moved according to the sheet size, as shown in FIG. It is. In the sorter device described above, the sheets C to be collated are fed into the storage tray b by an index roll C and an idler roll d which are movably provided on the entrance side of the storage tray b. If e is folded in half beforehand, the folded part of paper - is thicker, so
There was a problem in that the number of sheets that could be stored in storage tray b was significantly reduced compared to unfolded sheets d.

Purpose of the Invention The present invention has been made for the purpose of improving such problems, and it is an object of the present invention to provide a sorter device with a simple configuration in which the storage capacity of the storage tray is not reduced even when sheets are folded in half. be.

Structure of the Invention A detector is provided for each paper tray that accommodates collated papers, detects when a specified amount of paper is accommodated in the accommodation tray, and according to the obtained signal, the size change lever is moved in multiple stages. A sorter device that increases the storage capacity of a storage tray by retracting the storage tray.

Embodiment Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings shown in FIG. On the entrance side of the storage tray 1, an index roll 3 and an idle roll 4 are provided which are moved up and down by a drive means (not shown) to distribute the sheets 2 to each storage tray 1. 5 is a size change line provided vertically in the middle of the storage tray I, and when the size of the sheets 2 to be collated is selected using a switch (not shown), the size change line is automatically changed from arrows (A) to ( b) In addition to moving in the direction shown in FIG. A plurality of the detectors 6 are installed for each storage tray 1, and are designed to detect the amount of sheets 2 stored in the storage tray 1, for example, photoelectrically. Based on the signal detected by the detector 6, the size change line 5 operates as follows.

When the size of the sheets 2 to be collated is selected, the size change line 5 is stopped at the position shown in FIG. 1'M, for example, according to the size. In this state, the Z-folded sheets 2 are successively collated into the storage tray 1, and the sheets 2 stored in the storage tray 1 are stopped at the size change line 5 and stacked one after another.

When the paper 2 in the storage tray 1 reaches a certain amount.

This is because the detector 6 detects this and outputs a signal.

The resizing row 5 retreats from the position shown in FIG. 2(C) to the position shown in FIG. Thereafter, the sheets 2 to be stored are sequentially stacked on the rear ends of the sheets 2 already stored. When the paper 2 stacked in the second layer reaches the specified lid,
The size change line 5 moves back to the position shown in Figure 3 (e) again,
The paper 2 in the right circle of the storage tray also naturally falls to the position of the size change row 5, and the paper 2 is stored in the storage tray 1 again.

By operating as described above, more sheets 2 can be stored in the storage tray 1, and the size change row 5 can be moved to the lower end side (position E) of the storage tray 1 in advance. Unlike the case where sheets 2 are stored, there is no problem such as the next sheet 2 entering between sheets 20 already stored and disrupting the order.

Effects of the Invention As described in detail above, the present invention includes a detector for detecting when the stored sheets 2 reach a specified amount in the storage tray 2 that stores the collated sheets 2, and Since the size changing rod 5 is moved back in multiple stages according to a signal from the storage tray 1, more sheets 2 can be stored in the storage tray 1 without disturbing the order of the sheets 2. As a result, the storage capacity of the storage tray will not be reduced even when the paper 2 is folded in half and the folded portion becomes thicker, and since the size change row 5 is used, the configuration is It is also easy and inexpensive to implement.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a conventional sorter device, FIG. 2 is a configuration of a sorter device showing an embodiment of the present invention, and FIGS. 3 and 4 are operation explanatory diagrams. 1 is a storage tray, 2 is paper, 5 is a size change line, and 6 is a detector. Applicant Fuji Xerox Co., Ltd. Agent Patent Attorney Masaaki Yonehara Patent Attorney Tadashi Hamamoto 1 Figure 2 JP-A-Sho GO-IB65G (3)

Claims (1)

[Claims] A multi-stage storage tray 1 that stores collated sheets 2,
A detector 6 is provided for each storage tray 1 to detect when the paper 2 stored in a right circle of the storage tray reaches a specified amount, and a plurality of size change rods 5 are activated based on the signal from the detector 6. A sorter device that is made to retreat in stages.