JPS58148150A - Automatic carriage apparatus for loaded sheet - Google Patents

Abstract

PURPOSE:To ensure accurate feeding of sheets from a loading base by pressing them with a partition plate receiving a downward rotating force, namely a force pressing a loaded sheet on the loading base. CONSTITUTION:In an automatic carriage apparatus designed to separately carrying loaded sheets P to a specified position and then, discharge it from the position, sheets P are separately carried from a sheet loaded base 1 with belts 3 and 5 and the like while the sheets P thus sent from the base 1 by said separate carriage means are carried to the specified position and discharged from the position to be returned to the loading base 1 with a belt 18 or the like. An arm 27 which receives a downward rotating force from rotors 4 and 4a driven to rotate is provided with a partition plate 26 for separating the sheets returned from the specified position from the sheet on the loading base 1. In other words, the partition plate 26 receives a downward rotating force, namely a force pressing the sheet on the base 1 and presses it thereby enabling accurate feeding of the sheet from the loading base 1.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic conveying device for stacked sheets that conveys stacked sheets to a predetermined position and then discharges them from the predetermined position. Specifically, the present invention relates to an automatic conveyance device for stacked sheets using partition plates.

Hereinafter, an automatic document conveying device used in a copying machine or the like will be described as an example. It should be noted that the partition plate of the present invention is not only applicable to the automatic document feeder described by way of example, but can also be applied to known automatic document feeders.

An embodiment of the present invention will be described below with reference to the drawings.

It! Figure 1, Figure 2, Figure 6 (al, Figure 5 (bl,!)
4 and 5 show an embodiment of the present invention.

This is a feeding tray. This tray 1 is arranged to be inclined downward as it goes in the document sending direction so that the original sending side is lowered. As a result, [the documents to be ejected are stacked together in the sending direction. Further, 2.2 m is a feeding roller which rotates the feeding belt 6 in the direction of the arrow to feed the original. Further, reference numeral 4 and 4a denote separation rollers which rotate the separation belt 5 in the direction of arrow B and separate the documents one by one between them and the feeding belt 6. The feed belt 6 and the separation belt 5 constitute a separation supply WI8. And this separation supply BS
is provided near the bottom of the document on the tray 1, which is tilted downward. The first sheet path 6 is formed between the guides 7 and 8 and is a path for moving the original separated between the feeding belt 6 and separation belt 5 onto the original platen glass 9. . The second sheet path 10 is formed at the intersection of the guides 11 and 12, and is a path for moving the document from the platen glass 9 to the feed tray 1 after the illumination rung L has finished exposing the document. . Here, the second sheet path 10 is provided facing the straw 1 sheet lot 6, and passes from the end 9a of the platen glass 9 to the outside of the sheet path 6 (i.e., a path away from the belt 18), and passes through the separation belt 5. It reaches above. The upper end 10 of the separation belt 5 of this sheet path 10
a is provided at approximately the same position as the circumferential surface of the roller 4a, and discharge rollers 22 and 22a, which will be described later, are attached thereto. The originals discharged from above the platen glass 9 are guided to this sheet path 10, and are fed out by the feed belt 6 and separation belts 5 and K on the side (input direction as shown) (downstream side in the A direction). ) and is discharged onto the tray 1 in the opposite direction (direction B in the figure). In other words, the original feeding direction for tray 1 and tray 1
The direction of discharge to and the direction of discharge are opposite directions to each other. 1 more
6, 14, 15 are sheet feeding rollers, rollers 16, 1
The document passing through the sheet path 6 between 4 and 4 is placed on the platen glass 9
The document is conveyed in the direction of the feed tray 1 and the document passes through the sheet path 10 between the rollers 14 and 15. Further, reference numeral 16 denotes a deflecting plate, which is attached to the guide 12 so that its leading edge contacts the guide 7. The document moving to the sheet path 10 can move smoothly because the tip of the deflecting plate 16 is pushed by the guide 7. Note that this deflection plate 16 is
It is made of sheet-like material such as Mylar. Also 1
7 and 17a are document conveyance rollers, and document conveyance belt 1
Rotate 8 to transport the original. Furthermore, this roller 17
When conveying and setting the original onto the platen glass 9, it rotates once in the direction of arrow C, and when removing the original from the platen glass 9 after image exposure, it receives a signal from the sensor 25. The rotation direction is configured to change in the direction of the arrow. Furthermore, numerals 19-20 and 21 are belt pressers, which press the belt 18 against the glass 9 to ensure that the belt 18 conveys the document.
'2 = The originals that have passed through the ejecting, ejecting rollers 1, and the sink path 10 are kicked out to the top and bottom of the feeding tray 1. In addition, 23, 25a, 24, and 25 in the fourth diagram are optical sensors, respectively. , 26 and 23a detect the presence or absence of a document on the feed tray 1, and 24 detects the passage of a document in the sheet path 6.A sensor 25 detects the passage of a document in the sheet path 1o.

Next, a document separating section to which an embodiment of the present invention is applied will be explained using FIGS. 2 and 3.

FIG. 3(8) is a top view showing the document separating section. Moreover, FIG. 6(b) is an enlarged top view of the partition plate. FIG. 4 is a detailed cross-sectional view showing the document separating section.

In FIGS. 6(1) and 6(b) and FIG. 4, reference numeral 26 denotes a partition plate, which separates the original before no light and the original after exposure. Note that one set of the partition plates 26 are provided at both ends of the separation supply section Sa so as to face each other. This partition plate 26 has a fulcrum 2 on the partition plate arm 27.
8. A friction plate 29 is sandwiched between the arm carrier 62 engaged with the gear 51 fixed to the separation roller shaft 30 and the partition plate arm 27, and when the separation rollers 4, 4a rotate, A load is applied to the partition plate arm 27 in the direction of arrow q. That is, the partition plate 27 provides a force for correcting the documents on the supply tray 1.

Here, the gear 62, the arm 27, and the friction plate 29 are connected to the shaft 32a.
K* is attached. This facilitates the feeding of originals from the supply tray 1. That is, the leading end of the belt 5 contacts the belt 5, and the originals P stacked from the belt 6 to the tray 1 are suppressed by the bell 3, so that the lowest original can be reliably separated and conveyed. Further, the roller receiving the load from the partition plate 26 via the feeding belt 6 further increases the force with which the partition plate 26 presses the document against the belt t5. Reference numeral 56 denotes a spring that is hung between the shaft 54 on the partition &26 and the shaft 55 on the partition plate arm 27, and as the - connecting the shafts 64 and 55 crosses the fulcrum 28, it moves in the directions of arrows E and F. The partition plates 26 are respectively moved. Further, the outer #157 of the partition plate 26 has a cam shape, and when the partition plate 26 and the partition plate arm 27 rotate in the direction of arrow 0, the partition plate 26 is moved by a shaft 58 attached at a position that engages with a cam 57. It is configured to return in the F direction. 39 is a light sensor, and the partition plate arm 2
It detects that 7 has turned in the G direction, and this causes the original 11! It can be determined that 1 day of copying has been completed.

The drive section will now be explained using Figure 8g4.

Figure 4 is a cross-sectional rear view showing the driving part. In the figure, 41 is a motor and 42 is a motor pulley. In addition, feed row'') 15, 14, 15 and discharge sheet 22, 221
The belt 45-44 for transmitting the drive to the pulley 45
46/47K is applied ◎Additionally 48 is motor 4
1 to the transport row 217, and switching between normal rotation and reverse rotation is controlled by the controller 11i@. 4
9 is the feed from the pulley 47 and the separation 1l-94t
The drive unit is not dispersed as described above, but can be concentrated in one location.

Next, we will explain the operation.0 The plurality of originals, which are positioned with their tips in contact with the bell) 5 and stacked and set from the belt 6 to the tray 1, are moved to the main body copy starshibutton (not shown). ON
In response to a signal from the sheet 6c, the feeding sheets 2, 2a and the separating rollers 4, 4& begin to rotate once in opposite directions, and are separated and fed into the sheet/sheet 6 one by one.

Since the feed speed of the feed rollers 15 and 14 is configured to be 2f11, which is the feed speed of the feed rollers 2 and 2a, the rear end of the document fed after separation and the next document There will always be a gap between #&tlK and the tip. This gap is filled with a sensor 40 installed along the seat path 6IC.
At the same time as the feeding roller 2-2 &
u-') The 5-fist, 3-hata turn comes to a halt. Since the leading edge of the document fed here is already expected to reach the feed row 215"14K, the document is transported by the feed rows 21!1 and 14, and the trailing edge of the document is placed on the lower fIL side of the sheet path 6. The timer circuit operates from the moment it is detected by the provided sensor = 24, and it takes a predetermined time, that is, the time until the original is conveyed to the JjK reference position on the platen 9.
stops, the original is set at a predetermined position on the glass plate 9, and the original is stopped. Then, the exposure operation by the second lens 7'Ll on the side of the camera body is started. Next, when an exposure completion signal is received from the main body, the conveyance a-917 starts to make one reverse rotation in the D direction, and the original is ejected from the top of the glass 9 to the sheet path IOK by the bell 18. Then, the leading edge of the document passing through the sheet path 10 is below the rollers 14 and 15 of the sheet path 10.
At the same time as it is detected by the 7/day 25 provided in the illK, the feed roller 2 and the separating roller 4 start rotating &g1 by a signal from the roller 25, and the next original is fed. The conveying roller 17 is rotated in the C direction K1g1, and then rolled out by the rollers 22-22&, and is stacked on the partition plate 26 on the feeding tray 1. At this time, since the feed tray 1 is sloped so that the originals fall in the direction of the S section, the tip of the originals taken out by the Uts 22 and 221 hits the separation roller 6a. Jll in condition
It turns out.

Reference numeral 50 denotes a static elimination needle, which functions to eliminate static electricity from the original that has passed through the sheet path 10 and to smoothly feed the original onto the feed tray 1. This operation is repeated thereafter.

Here, as mentioned above, the cost to be discharged is 11-
It is discharged by the conveying force of 414.15.

Also, the next document is w-413.14 and conveyor belt 18.
is conveyed onto the solid glass 9 by the conveying force. At this time, the leading edge of the ejected document is detected by the sensor 25,
The next document is transferred to the platen glass 9 by one rotation of the belts 5 and 5.
Even when the top is reached, it may still remain on the original size 9. However, in this embodiment, since the belt 18 is made of urethane rubber or the like having a high coefficient of friction, the frictional force between the belt 18 and the document reaching the thick glass 9 is greater than the *m force between the belt 18 and the original glass 9. As it becomes larger, the discharge cost from above the thickened glass 9 and the strictly cooled heat coming from above the platen glass 9 can slide past each other and shrink.

Next, we will explain about UK trying to send the last page of multiple pages. A partition plate 26 is present immediately above the last page. When the final page is fed, the partition plate 26 comes into contact with the feeding belt 5, so the male friction force between them causes the partition plate 26 to rotate in the direction of arrow E, and the force of the spring 560 causes the partition plate 26 to be in the two-point position shown in the figure. become. Here, since a load is applied to the partition plate γ-m 27 by the friction plate 29 in the direction of the arrow E4JG, when the partition plate 26 is folded, it begins to turn in the G direction. and feeding V-ra 2 and min@1--
The rear end of the cost price is sheet I (downstream 11 of
Since it stops when it is detected by the J+Lyt-40 installed in the partition plate 274, when the last page is fed to the partition plate Arf 274, it stops at the position indicated by the broken line in the figure after rotation. Then, feeding the last page, that is, the partition @ T-mu 27 is set to
9, the last page is returned to feed tray 1 after exposure, and the feed ports 1 and 2 are moved until one page is completely completed.
and Separation-1 23 is stopped, and 1 of the second cycle is started.
If you start rolling the first page, the partition plate 26 will be above the last page.

/'/' / Since this embodiment has the configuration as described above, the partition plate receives the downward rotational force and presses the stacked sheets, so that the documents can be reliably sent out from the supply tray 1. . Further, since the stacked sheets can be discharged from the direction It (lower flLi#l in the direction of feed) in the opposite direction, it is possible to use multiple stacks of originals of mixed sizes. Furthermore, the structure is simpler, so the design can be simplified, and the time required to exchange originals can be shortened, resulting in faster copying speed and faster original processing. Furthermore, in this embodiment, by discharging the original to the passage on the opposite side from where it was conveyed onto the flat glass 9, it is possible to perform the function of a single document page in which each original is manually fed one by one. possible and multifunctional.

It can also be achieved.

As described above, in the present invention, the partition plate receives a downward rotational force, that is, a force that suppresses the stacked sheets on the stacking platform, and presses the sheets, so that the sheets cannot be sent out from the stacking platform. An object of the present invention is to provide an automatic stacked sheet conveyance device that can reliably carry out the conveyance.

[Brief explanation of drawings]

Fig. 1 is an external perspective view of an automatic document circulation device using an embodiment of the present invention, Fig. 2 is a sectional view thereof, Fig. 6(a) is a top view of the separating part showing details of the separating part, Figure 6 (b) is an enlarged horizontal view of the partition plate, and Figure 4 is a detailed detailed view of the separation part.
The figure is a cross-sectional rear view showing the drive section. In the drawings, 1 is a feeding tray, 2 is a feeding roller, 6 is a feeding belt, 4 is a separation roller, 5 is a separation belt,
9 is a platen glass, 17 is a conveyance roller, 18 is a conveyance belt, and 26 is a partition plate.

Claims (1)

[Claims] (1) A stacked sheet automatic conveyance device that separates and conveys stacked sheets to a predetermined position and then discharges them from the predetermined position, comprising: a sheet stacking platform; a means for separating and conveying sheets from the sheet stacking platform; and a sheet separating and conveying means. A conveying means for transporting the sheets sent out from the loading platform to a predetermined position, and then ejecting the sheets from the predetermined position and returning them to the loading platform; a rotating body that is driven to rotate; and a rotating body that rotates downward from the rotating body. An automatic stacked sheet conveyance device comprising: an arm that receives a force; and a partition plate provided on the arm to partition sheets on a sheet stacking table and sheets returned from a predetermined position.