JPS6351940B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a conveying device for a copying machine that can convey two sheets of paper simultaneously conveyed by rollers without causing oblique feeding or overlapping. .

Conventionally, a copying machine has been proposed in which a single copy operation copies multiple originals onto multiple sheets of copy paper that are simultaneously fed in parallel. Place it on top;
A plurality of copy sheets are simultaneously fed from a plurality of paper feed trays provided in parallel, and a plurality of copies corresponding to the original are made in one copy operation, thereby reducing the copy operation time. I was trying to shorten it.

FIG. 1 shows a conveying device in the conventional copying machine described above, in which the conveying device 01 is a conveying roller 0.
Between 2 and 03, conveyor belts 04, 05, 06, 0
7 is stretched, and the conveyor belts 04, 05, 06,
A ventilation hole 08 is formed in 07, and an intake fan 08 is formed at the lower side of the conveyor belt 04, 05, 06, 07.
Copy sheets fed simultaneously from a plurality of parallel paper feed trays (not shown) are placed on the conveyor belt, and the conveyor rollers 02, 03 and the intake fan 09 are placed on the conveyor belt. The copy paper is driven to be sucked into the suction port 08 and conveyed.

Problems to be Solved by the Invention However, in the above-mentioned conventional conveying device, the paper may be tilted due to the speed of each belt, errors within circumferential length tolerances during manufacturing, elongation during conveyance, differences in slip, etc. This has the disadvantage that multiple sheets of paper transported at the same time overlap and are not transported correctly.

Means and Effects for Solving the Problems The present invention eliminates such drawbacks, and provides paper transport that prevents the left and right sheets from being fed diagonally with respect to the conveyance direction or conveyed overlapping each other. An object of the present invention is to provide a paper conveyance device of a copying machine that can copy onto a plurality of sheets fed in parallel at the same time in a single copy operation. A partition guide member oriented in a direction parallel to the above direction is disposed so as to be able to move upwardly and downwardly from the paper conveyance support surface of the conveyance device and to divide the support surface in the width direction. Copy paper fed simultaneously from a plurality of paper feed trays is partitioned left and right in the width direction by a partition guide member, and is conveyed without overlapping each other. Conveyance of a sheet of paper is performed by activating the drive means and sinking the partition guide member below the paper conveyance support surface.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 2 to 5.

Reference numeral 1 denotes a main body of the copying machine, and as shown in FIG. It is designed to be sent onto a platen glass 5.

Further, in the copying machine main body 1, an exposure system consisting of an exposure lamp 6, a mirror 7, and a lens 8 is disposed below the platen glass 5, and a drum-shaped photoreceptor 9 is pivotally supported below the exposure system. is formed into a slit-like image on the photoreceptor 9 through the exposure system, and is moved in the circumferential direction of the photoreceptor 9 by a drive motor connected to the photoreceptor 9 and rotating at a speed corresponding to the feed speed of the document feeder 2. The image of the original document is exposed to light.

Furthermore, a charging corotron 10, a developing device 11, a transfer and peeling corotron 12, and a cleaner 13 are disposed around the outer periphery of the drum-shaped photoreceptor 9 in the circumferential direction.

Furthermore, a paper tray 14 is arranged below it, and the tray 14 holds two sheets of paper 15, 16 on the left and right.
A paper transport device 30 is provided which extends from the tray 14 to the paper storage section 21 via the photoreceptor 9 and the heat fixing roller 20, and the paper 15, 16 is transported from the paper tray 144 by a paper feed roller (not shown). is sent to the photoconductor 9, and the toner image on the photoconductor 9 is transferred to sheets 15 and 16 by the transfer/separation corotron 12, and then the toner image is transferred to the sheets 15 and 16.
The toner images 5 and 16 are peeled off from the photoreceptor 9, and the transferred toner images are fixed on the sheets 15 and 16 by a heating fixing roller 20, and then sent to a sheet storage section 21.

Therefore, the paper conveyance belt 3 of the paper conveyance device 30
1, 32, 33, 34 are stretched around paper conveyance rollers 35, 36 disposed in a direction perpendicular to the conveyance direction X of the sheets 15, 16, and
2, 33, and 34 have air holes 37, and the conveyor belts 31, 32, 33, and 34 are stretched at intervals, and between the paper conveyor belt 32 and the paper conveyor belt 33, there is a A partition guide member 40 oriented in a direction parallel to the direction The guide member 40 is attached to a housing 43 supported by the bottom plate portion 42 of the copying machine main body 1,
An intake fan 44 is disposed below the paper conveyance belts 31, 32, 33, and 34.

The partition guide member 40 is attached to the housing 43 at its extension portion 41 so as to be slidable in the vertical direction. A link pivot portion 45 is stretched over the housing 43 via a spring 46, and a link pivot portion 47 is connected to a solenoid 48 attached to the housing 43. The upper link pivot portion 50 of the parallelogram link mechanism 49 and the lower end portion 51 of the partition guide member are pivotally connected, and the partition guide member 40 is moved up and down when the solenoid 48 is energized and demagnetized. It's summery.

Since it is configured like this, both left and right
When a sheet of paper is to be transported, the solenoid 48 is demagnetized, the partition guide member 40 is projected upward from the paper transport support surface 54, and the paper transport rollers 31, 32, 33, 34 and the intake fan 44 are driven. The two sheets of paper 15 and 16 are inserted into the air intake hole 3.
7 and conveyed to the partition guide member 40.
The side edges 15a, 16a of the sheets 15, 16 are guided, and the sheets 15, 16 are correctly conveyed in the conveying direction X without being slanted or overlapping during conveyance.

In addition, when transporting one sheet of paper having the size of two sheets of each sheet 15 and 16, the solenoid 48
When energized, the parallelogram linkage 49
The partition guide member 40 sinks below the paper transport support surface 54 through the paper transport support surface 54, and the paper is transported normally.

Further, when conveying the left and right two sheets of paper 15, 16 at the same time, if the sheets of paper 15, 16 are conveyed diagonally with respect to the conveyance direction Although some portions of the image forming apparatus 20 may not be fixed, this can be prevented.

Furthermore, the paper conveyance belts 31, 32, 3
The speeds of Nos. 3 and 34 differ depending on each paper transport belt due to errors in the circumference of the transport belt within manufacturing tolerances, elongation during use, slips, etc. It is also possible to prevent the sheets 15 and 16 from being fed diagonally.

In the embodiment illustrated in FIGS. 2 to 5, the partition guide member 40 has, at its extension 41:
A solenoid is attached to the housing 43 so as to be slidable in the vertical direction, the link pivot portion 45 is stretched to the housing 43 via a spring 46, and the link pivot portion 47 is attached to the housing 43. The upper link pivot portion 50 of the parallelogram link mechanism 49 connected to the partition guide member 48 is pivotally connected to the lower end portion 51 of the partition guide member, and as shown in FIG. Also on the side part, a guide rod 52 of the partition guide member 49 is attached to be slidable in the vertical direction, and by pivoting the guide rod 52 to the lower link pivot portion 53 of the parallelogram link mechanism 49, the solenoid 48 allows the partition guide member 40 to be moved in and out of the paper conveyance support surface more smoothly and reliably through the parallelogram link mechanism 49.

Effects of the Invention The present invention provides a conveying device for a copying machine that is capable of copying onto a plurality of sheets of paper fed in parallel in a single copying operation. A driving means for moving the partition guide member upward and downward, the partition guide member being arranged so as to be able to move upwardly and downwardly from the paper conveyance support surface of the conveyance device and to divide the support surface in the width direction. Because it is equipped with a It is possible to transport a single sheet of paper.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a paper conveyance device of a conventional copying machine, FIG. 2 is a perspective view of a copying machine to which the paper conveyance device of a copying machine according to the present invention is applied, and FIG. 3 is a longitudinal sectional front view of the same. , FIG. 4 is a perspective view of the same paper conveying device, FIG. 5 is a vertical side view showing the drive mechanism of the partition guide member, and FIG. 6 is a vertical side view of another embodiment. DESCRIPTION OF SYMBOLS 1...Copying machine body, 2...Document feeder, 3...Document feed roller, 4...Document feed belt, 5...Platen glass, 6...Exposure lamp, 7...Mirror, 8...Lens, 9...Photoconductor, 10...Charging Corotron, 11...
Developing device, 12... Transfer peeling corotron, 13... Cleaner, 14... Tray, 15, 16... Paper, 17...
Paper feed roller, 18... Upper guide plate, 19... Lower guide plate, 20... Heat fixing roller, 21... Paper storage section, 30... Paper transport device, 31, 32, 33, 3
4...Paper conveyance belt, 35, 36...Paper conveyance roller, 37...Intake hole, 40...Partition guide member, 41...
Extension part, 42... Bottom plate part, 43... Housing, 44... Intake fan, 45... Link pivot part, 46... Spring, 47
...Link pivot joint, 48...Solenoid, 49...Parallelogram link mechanism, 50...Upper link pivot joint, 5
1... Lower end of partition guide member, 52... Guide rod, 53...
Lower link pivot portion, 54...Paper conveyance support surface.

Claims (1)

[Claims] 1. In a conveying device of a copying machine that is capable of copying onto a plurality of sheets of paper fed in parallel at the same time in one copy operation, The partition guide member 40 oriented in the direction
Drive means 48 and 49 are provided so that the partition guide member 40 can move upwardly and downwardly into the paper transport support surface 54, and are arranged so as to divide the support surface 54 in the width direction. Characteristic copying machine paper conveyance device.