JPS6121908B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a collator as an end device for a copying machine, a printing machine, etc., and particularly to a paper discharge device thereof.

In general, this type of collator has a distributor that moves sequentially along the tray rows to feed the paper.
The present invention relates to a type in which the above-mentioned distributor moves and advances in sequence.

No matter which type of paper is used, after the trailing edge of the paper passes through a pair of paper ejection rollers that are normally arranged at the outlet end of the distributor, the trailing edge of the paper may remain at the outlet end. If it is difficult for paper to enter the tray due to static electricity or other factors, this may occur frequently and cause paper jams.

In view of the above-mentioned drawbacks, the present invention is capable of always reliably storing paper sheets in a tray in an orderly manner despite the influence of static electricity during the conveyance process, has an extremely simple and compact structure, and has a limited distributor. Its main purpose is to provide a collator paper discharge device that can be easily incorporated into a space.

The configuration will be described in detail below based on one embodiment shown in the drawings.

6 is the main unit of a copying machine, printing machine, etc., and 6'
is its outlet.

The collator that sequentially collates and feeds the paper from the discharge port 6' to multiple tray rows may be a vertical type in which multiple tray rows 1 are arranged vertically in parallel, or a horizontal type in which multiple tray rows 1 are arranged in parallel in the horizontal or horizontal direction. However, to explain the present invention with respect to a vertical collator, the tray row 1 is constructed by appropriately arranging multiple stages (the one shown in the figure is 10 stages) vertically, and a conveyor belt 7 runs along the inlet side of the tray row 1. It is stretched between a pair of upper and lower pulleys.

The conveyance path of the paper runs from the discharge port 6' of the main unit 6, passes through the entrance guide 8, and reaches the above-mentioned conveyance belt 7.
It is formed by sandwiching the paper between the conveyor belt 7 and the winding belt 9, and the paper is configured to reach a predetermined tray via the distributor 2.

In other words, the distributor 2, which is composed of a finger claw 10 for separating paper from the conveyance path and a paper discharge roller 20, sequentially moves through the tray row 1 (described later) and delivers the paper to a predetermined tray. , and a winding roller 12 whose tip end is fixed to the distributor 2 and whose base end of a flexible sheet made of modified polyester resin (trade name Mylar) is provided at the entrance of the device.
The above-mentioned winding belt 9 is constructed by winding the belt around the belt.

Further, a gate 13 is provided on the entrance guide 8 on the above-mentioned conveyance path, and a stacker 14 is extended when the collator device is not used. In order to move the distributor 2, first, the distributor 2 is fitted and supported by a pair of left and right stems 15 so as to be freely vertically supported, and a constant force spring member 16 wound around the winding roller 12
It's being held up.

Therefore, this distributor 2 is always biased upward in FIG. 1, but the stepping drive wire 17 is wound around the winding drum 18 so that the distributor 2 is pulled down against the spring member 16. A drive motor 19 is connected to this winding drum 18. Therefore, when the winding drum 18 is intermittently rotated via a clutch or the like, the distributor 2 moves step by step along the tray row 1 and faces the entrance of the trays one after another.

The present invention relates to a paper discharge device for such a movable distribution type collator, which includes a discharge piece 3 that engages with the trailing edge of the paper at the paper discharge port of the distributor 2 and discharges the paper, and an energy accumulating means 4 by moving the distributor 2. and its release means 5,
This makes it possible to move the discharge piece 3 without using any special driving means. Release piece 3
Various structures can be adopted as long as the actuating piece is located at the discharge port of the distributor 2, engages with the trailing edge of the paper, and moves in the discharge direction.
It has a structure in which it is supported by a shaft 21 in the vicinity of 0.

As the energy storage means 4, a spring is used as the release piece 3.
and the machine frame. Other storage means 4
This can be done by using its own weight by selecting the center of gravity position of the release piece 3 without using a spring, and for the release piece 3 having the structure shown, if it has a rotational habit in the counterclockwise direction as shown in Figure 1. good.

Further, the discharge piece 3 is provided with an engaging portion 23 that engages with the fixed frame 22 so as to store energy in the energy storage means 4 when the distributor 2 moves. 24 is a cam that collides with the distributor 2 when it advances and disengages when it returns to the engaging portion 2.
It consists of 3.

A release means 5 for releasing the release piece 3 by such energy storage means 4
In other words, the locking piece 25 that locks the release piece 3 in its energized position is detached by the aforementioned planting pin 24.

In addition, the release means 5 may be one that releases the above-mentioned latching piece 25 with an electromagnetic solenoid activated by a sensor that detects passage of the trailing edge of paper, or a slider as shown in FIG. 3 on the fixed frame 22. Contact surface 24'
By providing and joining the engaging portion 23 of the release piece 3, it is not necessary to provide a hooking piece.

Therefore, when the distributor 2 stores the paper in the tray and moves to the next tray, the hooking piece 25 is attached to the welding pin 24.
engages and swings clockwise in Figure 2. Then, the discharge piece 3 is released and moves vigorously counterclockwise in the figure by the stored force of the energy storage means 4, kicking out the trailing edge of the paper remaining at the paper ejection port and securely storing it in the tray.

Next, as the distributor 2 moves, the engaging portion 23 of the discharge piece 3 engages with the planting pin 24, and the energy storage means 4
The release piece 3 is swung clockwise in FIG. 2 against this force and is engaged with the release means 5, so that the release piece 3 is energized.

Thereupon, the distributor 2 reaches a predetermined tray, stops, and stores the paper. When moving the paper to the next tray after delivery, the above operation is repeated.

The present invention has the above-mentioned configuration, and since the discharge piece 3 that kicks out the trailing edge of the paper is operated by the accumulated force when the distributor 2 moves, special driving means such as a motor or an electromagnetic solenoid are required. The paper can be reliably stored in the tray without any problems, and the effect is particularly remarkable when the paper is difficult to enter the tray due to the influence of static electricity charged during the conveyance process.

Moreover, its structure is simple, small and lightweight, so it can be incorporated into the limited space of the distributor 2.
It has the advantage that the weight exerted on the distributor 2 is small and there is no risk of adversely affecting movement control of the distributor 2.

[Brief explanation of the drawing]

The drawings show preferred embodiments of the present invention; FIG. 1 is a side explanatory view of the entire device, FIG. 2 A to D are explanatory views of its operation, and FIG. It is an explanatory diagram. 1... Tray row, 2... Distributor, 3... Discharge piece, 4... Energy storage means, 5... Release means.

Claims (1)

[Claims] 1. In a collator paper ejecting device equipped with a paper ejection piece 3 that moves in the ejection direction and engages with the trailing edge of the paper at the paper ejection opening of the distributor 2 that moves sequentially along the tray row 1 and stores the paper. , a spring or other energy storage means 4 that biases the distributor 2 when it moves;
A collator sheet discharging device characterized in that the energy accumulating means 4 and the release means 5 are disposed in the distributor 2, respectively, and the discharging piece 3 is moved by the energy accumulating means 4.