JPS6236945B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a registration device for setting relatively thick paper at a predetermined position in a copying machine.

For example, in a copying machine that copies images recorded on an aperture card, the aperture card is accurately set in a predetermined position on the scanning table, the microfilm is positioned (registration), and then the copying operation is performed. I'm going.

FIG. 1 shows an aperture card set on the scanning table of such a copying machine. The aperture card 1 is transported to the scanning table 2 by a transport means (not shown). At this stage, the roller 3A of the roller unit 3 descends and comes into contact with the aperture card 1. The roller unit 3 then moves the aperture card 1 in the Y-axis direction in the figure. Two stoppers 4 and 5 are arranged on the scanning table 2 in the X-axis direction perpendicular to the Y-axis direction, and when the front end of the aperture card 1 is aligned with these stoppers, the Y-axis stops.
Axial registration is completed. When the registration in the Y-axis direction is completed, the solenoid 6 is activated and the aperture card 1 is moved in the X-axis direction, and its left end portion comes into contact with the stopper 7. At this stage, registration in the X-axis direction is also completed. In such conventional registration devices, the registration in the X-axis direction is performed after the registration in the Y-axis direction is completed, so the aperture card changes along the Y-axis direction. This could not be corrected by moving in the axial direction. Since this type of copying machine creates copies by enlarging the microfilm attached to the card, even the slightest inconsistency in position will appear as an enlarged copy, significantly reducing the commercial value of the copies. That was the result.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a registration device for a copying machine that can accurately position relatively thick paper such as an aperture card.

In the present invention, a stopper is arranged on the scanning platform so as to be able to position the paper at a predetermined position by contacting at least three different points with two non-parallel sides of the paper conveyed from the initial position on the scanning platform; A roller bracket is supported at one end so as to be able to move forward and backward relative to the paper on the scanning table, and one end is connected via a universal joint to a drive source so as to be able to move forward and backward, and a feed roller that transports the paper. It consists of a fixed rotating shaft and a long hole that allows the rotating shaft to be inserted loosely and is bored at the end of the roller bracket in a state that is approximately parallel to the scanning table. The above-mentioned purpose is achieved by providing a roller mounting portion that holds the rotating shaft in a position that allows paper to be fed diagonally when the rotating shaft rotates in the forward direction, and holds the rotating shaft in a position that allows paper to be ejected when the rotating shaft rotates in reverse. achieve.

The present invention will be explained in detail with reference to Examples below.

FIG. 2 shows a registration device in a copying machine for copying an aperture card. The registration device includes three stoppers 4, 5, and 7 arranged on the scanning table 2, a roller unit 8 for conveying the aperture card 1,
A drive motor 9 that drives this roller unit 8,
and a universal joint 11 that connects the feed roller 81 in the roller unit 8 and the drive motor 9.

As shown in FIGS. 2 and 3, the roller unit 8 has a roller bracket 84 rotatably attached to a shaft 83 of a mounting bracket 82. Roller mounting portions 84A and 84B, which are bifurcated at one end of this roller bracket 84, are provided with elongated holes 84C and 84D, respectively. A rotating shaft 81A protruding from is loosely inserted. Further, at the other end of the roller unit 8, a movable piece 85A of a solenoid 85 is fixed to a frame (not shown) and is attached to the movable piece 85A by a pin 86 so as to be able to freely reciprocate.

When a copying preparation operation of a copying machine equipped with such a registration device is started, a control circuit (not shown) first energizes the solenoid 85. As a result, the movable piece 85A is attracted, and the roller 81 is lifted above the scanning table 2 as shown in FIG. In this state, a conveying means (not shown) feeds the aperture card 1 to the initial position of the scanning table 2 (FIG. 2). At this stage, the control circuit is connected to solenoid 8.
5 is de-energized and the drive motor 9 is driven.

Immediately after the driving of the drive motor 9 is started, the rotating shaft 81A of the feed roller is in contact with the solenoid-side end of the elongated hole 84C, as shown in FIGS. 4 and 5. At this time, the rotating shaft 81A of the feed roller, the shaft 11A of the universal joint 11, and the rotating shaft 9A of the drive motor 9 are arranged on one straight line parallel to the X-axis. Therefore, when the driving force is transmitted to the drive motor 9 via the universal joint 11 and the feed roller 84 rotates in the normal rotation direction opposite to the arrow 13 shown in FIG. 5, the feed roller first moves the aperture card 1 in the Y-axis direction. Send it upwards.

By the way, the feed roller 84 is the aperture card 1.
When the feeding starts, the rotating shaft 81A is inserted into the elongated hole 8.
It starts sliding at the contact surface with 4C, and moves in the direction of arrow 14 due to these frictional resistances. and the sixth
As shown in FIG. 7, the rotation axis 81 of the roller
The direction change is completed with the vicinity of the end of A in contact with the other end of the elongated hole 84C. Therefore, in the subsequent steps, the feed roller 81 moves the aperture card 1 in the direction of the arrow 15, which intersects the Y axis at a predetermined angle, toward its final setting position indicated by the dashed line, as shown in FIG. let As a result, the aperture card 1 contacts the stoppers 4, 5, and 7, which position the two sides at three different points, and side registration is completed. Note that even if some of the stoppers 4, 5, and 7 finish registration in the X-axis direction or the Y-axis direction first, the feed roller 81 moves the aperture card 1 to the stopper for position alignment in that direction. The aperture card 1 is always set at an accurate position because side registration is completed by pressing one side of the card and moving it in parallel in the other direction and pressing the other side against another stopper.

When side registration is completed and copying is completed, the control circuit starts rotating the drive motor 9 in reverse. Along with this, the rotating shaft 81A of the roller has an elongated hole 8.
It starts sliding at the contact surface with 4C, and moves in the direction of arrow 16 due to these frictional resistances. and the fifth
As shown in the figure, the direction change is completed with the vicinity of the end of the roller rotation shaft 81A in contact with the solenoid-side end of the elongated hole 84C. Therefore, in the subsequent step, the roller 81 moves the aperture card 1 in the direction of arrow 17 (opposite to the Y-axis direction) toward its initial position indicated by the dashed line, as shown in FIG. When the aperture card 1 is returned to its initial position, a conveying means (not shown) discharges the aperture card 1 to a discharge tray (also not shown), thereby completing the series of copying operations.

In this way, according to the present invention, two sheets of paper are not parallel.
Since the positioning is performed by feeding the paper in a direction that is not parallel to any of these sides at the end of setting, it is possible to accurately position the paper against the positioning stopper, which is arranged so as to make contact with the sides at at least three different points. Not only is this possible, but compared to conventional devices, there is no need for a solenoid to move the paper in a predetermined direction, and the reliability of the device can be improved.

In the embodiment, the registration of an aperture card has been described, but it goes without saying that the present invention is not limited to this and can be applied to registration of relatively thick paper in general.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing the main parts of a conventional registration device, and Figs. 2 to 9 are for explaining an embodiment of the present invention, of which Fig. 2 shows an aperture card. FIG. 3 is a side view of the registration device in a state where no aperture card is placed on the scanning table;
FIG. 4 is a plan view showing the arrangement relationship between the feed roller and the drive motor before the direction change, and FIG. 5 is a side view showing the arrangement relationship between the rotation shaft of the feed roller and the elongated hole of the roller bracket before the direction change. Fig. 6 is a plan view showing the arrangement relationship between the feed roller and the drive motor after the direction change, and Fig. 7 is a side view showing the arrangement relationship between the rotation axis of the feed roller and the long hole of the roller bracket before the direction change. , FIG. 8 is an explanatory diagram for explaining feeding of an aperture card, and FIG. 9 is an explanatory diagram for explaining dispensing of an aperture card. 1... Aperture card, 4, 5, 7... Stopper, 9... Drive motor, 11... Universal joint, 8
1...Feed roller, 81A...Rotary shaft, 84C...
...long hole.

Claims (1)

[Claims] 1. A stopper 4 disposed on the scanning table 2 so as to be able to position the sheet at a predetermined position by contacting at least three different points with two non-parallel sides of the sheet conveyed from the initial position on the scanning table 2; 5, 7, a roller bracket 84 whose one end is supported so as to be movable forward and backward relative to the paper on the scanning table 2, and whose one end is connected to a drive source capable of forward and reverse rotation via a universal joint 11. Feed roller 81 that transports paper
The rotating shaft 81A to which the rotating shaft 81A is fixed, and
1A can be loosely inserted into the roller bracket 84, and consists of long holes 84C and 84D bored at the end of the roller bracket 84 in a state generally parallel to the scanning table 2. The rotating shaft 81A is held in a position where paper can be fed diagonally, and when the rotating shaft 81A is reversed, the rotating shaft 81A is held in a position where paper can be ejected.
1. A registration device for a copying machine, comprising roller mounting portions 84A and 84B for holding A.