JPS58188238A - Sheet loading device - Google Patents

Abstract

PURPOSE:To simplify a device and eliminate the generation of failure due to forgetting of size alignment by the operator, by driving plural movable walls with a single motor in the sheet loading device of an intermediate tray or the like in an automatic both side copying machine. CONSTITUTION:An intermediate tray is formed by a bottom plate, fixed reference side wall, movable side wall 3 and a movable rear end wall 4. The walls 3 and 4 are connected to driving wires 13, 14 through long holes 11, 12 formed to joints 9, 10. While the walls are fitted to different rail members 15, 16 under the bottom plate, if the wires 13, 14 are driven, the wall 3 or 4 is parallelly moved along the long hole. If a reversible motor 28 is rotated in the direction of an arrow head A, a pulley 17 is rotated through a one-way clutch 23, buta pulley 18 under an idle running condition by a one-way clutch 24 is not rotated. If reversely the motor 28 is rotated in the direction of an arrow head B, the pulley 17 is not rotated and only the pulley 18 is rotated.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sheet stacking device applied to TtiJg/I forming machines such as copying machines and recording machines. An example of an intermediate tray for temporarily loading and storing a sheet to obtain a further copy on the back side of a sheet having a copy formed on its front side through a cycle will be explained.

Traditionally, the intermediate tray has been used to feed sheets of transfer paper/copy paper (hereinafter referred to as transfer paper) in order to obtain copies in direction IIk, @6C, to avoid jams or double feeding, and stacked transfer paper. It is necessary to extract. Therefore, in order to keep the C loading position constant depending on the paper size used, @!
It has been proposed to move i1 or move the leading or trailing wall. It has been proposed that this easy movement can be done manually or via an electromagnetic actuator such as a motor or solenoid. However, the manual version was prone to failure because the operator sometimes forgot about it. In addition, when using a motor, it is necessary to move the tip, tip, or rear end wall separately, and a single magnetic actuator is arranged for each, making it complicated and unpleasant.

In view of this, the present invention eliminates the failure caused by forgetting to adjust the size of an operation name by using the ``math'' to move a wall or the like. In addition, by using - σ) motors to drive each of them, instead of using separate motors,
To provide a common and low-cost sheet stacking device by simplifying the device.

Hereinafter, the present invention will be explained with reference to practical examples. .

FIG. 1 is a perspective view of an intermediate tray to which an embodiment of the present invention is applied.

In the figure, a casing formed by a bottom plate 1, a fixed reference side wall 2, a movable side wall 6, and a movable rear end [4] forms an intermediate tray T. Note that the bottom &1 is inclined so that the rear end l114 side is lower, and the paper that has been copied onto the surface and carried onto the paper board 1 is always aligned with the OJ moving end wall 4 due to its own weight. The opening wall 6 and the rear end wall 4 move according to the size of the transfer paper to align the side edges or rear edges of the transfer paper on the bottom plate 1. The paper carried onto the bottom plate 1 at L7 is then fed by the roller 5 by rotating the paper feed roller 5 as shown in the figure in response to a subsequent paper refeed command.
l (direction in which the paper is fed to the arrow below). Here, the position where the paper feed roller 5 and the paper come into contact is always VL-Pheasant's IΩtaki, so that the trailing edge can be adjusted according to the paper size within a 4 constant range S<
suppress. In addition, in order to align the edges of the stacked papers and prevent skewing during stacking and feeding, the movable side wall 6 is moved to the position of the filter paper width + Δ from the reference wall 2 (1111).

Here, the focus of this embodiment is on the drive of this movable @IIk6 and the rear end 1III14. The explanation will be given below with reference to FIG. Elongated hole 7 formed in the bottom plate 1 in FIG.
- Through 8, the movable @ wall 3 and the movable rear end 114 extend below the paper board 1 with joints 9 and 10 integrally spot welded thereto.

Therefore, the @ wall 3 and the rear end wall 4 are connected to the drive wires 16 and 12 through the elongated holes 11 and 12 formed in the joint 9 and 10, respectively.
It is combined with 14. Further, it is fitted into other rail members 15 and 16 under the bottom plate 1, and when the wires 15 and 14 are driven, the side wall 6 or the rear end 114 moves parallel to the elongated holes 7 and 8.

Now, the main plow wires 16 and 14 are stretched between drive pulleys 17 and 1B and driven pulleys 19 and 20, respectively, and as the drive pulleys 17 and 18 rotate, the drive wire 1
The side wall 3 and the rear end wall 4 connected to 6 and 14 are driven.

In addition, the drive pulley shafts 21 and 22 are connected to the drive pulleys 17 and 18.
The shafts 21-22 are connected to gears 25 through one-way clutches 23 and 24, respectively.
・26 is fitted. The gears 25 and 26 mesh with a gear 27 that is integrally formed with the shaft of a reversible motor 28. This makes the one-way clutch 23.2
4 is configured to transmit only the rotation of the outer ring in the arrow directions (arrow a and arrow b) in the figure. Then, when the motor 28 rotates in the direction of arrow A, the drive pulley 17 rotates, but the drive pulley 18 becomes idle in the one-way clutch portion 24 and does not rotate. Conversely, when the motor 28 rotates in the direction of arrow B, the drive pulley 17 does not rotate and becomes idle in the one-way clutch section 26, and the drive pulley 17 does not rotate.
Only 8 rotates.

That is, according to this practical example, by instructing the direction of rotation of the reversible motor 280, the wire connected to the movable wall to be driven is driven.

In addition, the wire is stretched between the drive pulley and the driven pulley, and even if it rotates in a fixed direction, the movable wall is driven back and forth by the loop as shown in Figure 6, so a sensor (not shown) is connected to the wire. etc., it is sufficient to drive the motor in a fixed direction until the sensor detects the desired stop position, and motor 1
It is possible to drive movable walls that would otherwise have to be driven independently. In this embodiment, an example in which the side end wall and the rear end wall are moved is shown, but the present invention is not limited to this.
may be driven. Moreover, it is of course applicable not only to intermediate trays but also to ordinary loading tables and the like.

As described above, the present invention provides a sheet stacking device that can drive a plurality of movable walls with a single drive source.

[Brief explanation of the drawing]

1 and 2 are perspective views of a sheet-loaded acid loader to which an embodiment of the present invention is applied, and FIG. 6 is a @ side view showing a wire loop. In fllJ, 1...Bottom plate 2...Reference side end Ro...Movable side wall 4
... i = J moving rear end wall 5 ... Paper feed rollers 16 and 14
ψ・Drive wire 17・18・φ・Drive wheel 23
-24...One-way clutch 28...S (-Sible Motor Applicant Canon Co., Ltd.

Claims (1)

[Claims] (1) A sheet loading platform, an IJJ moving side end wall that aligns the side edges of the 7-tots on the 7-tot loading platform, and a q'' moving side end wall that aligns the rear edges of the sheets on the sheet loading platform. An end wall, a reversible Tanabata that connects the end wall and the rear end wall to a power transmission means forming a loop, and a reversible Tanabata that drives the power transmission means, and a one-way border with different power transmission directions. % mold * device.