JPH02265838A - Sheet material conveyer - Google Patents

Abstract

PURPOSE:To surely and accurately convey hand fed paper sheets by providing, in an orthogonally crossing part, a guide means serving as a conveying path common to the first and second conveying paths and, in the second conveying path end part, a hand insertion paper sheets receiving plate possible to protrude from and retract in the first conveying path. CONSTITUTION:A hand insertion paper sheets 6 are fed onto the first conveying path by means of hand insertion paper feeders 50, 33, that form parts of guide means 21, 22 from the second conveying path 26 via a receiving plate 34, provided on its end part and protruding over the first conveying path, thereafter conveyed onto the first conveying path by means of guide means 21, 22. And paper sheets, fed by a paper feeder from a paper sheets housing part, are conveyed on the first conveying path. Here, receiving plate 34 is not present on the first conveying path, and makes no interference with conveying the paper sheets 6.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a sheet material conveying device, and more particularly to a sheet material conveying device having an added function of manually feeding a sheet material.

(B) Prior Art A conventional electronic copying machine 100 is shown in FIG. The transfer material 102 fed from the manual paper feed tray 101 by turning it sideways is transferred to paper feed rollers 103, 105. It is conveyed by registration rollers 106, passes through a transfer guide, the image on drum 110 is transferred and separated by transfer separation chargers 111 and 112, and is conveyed by conveyance section 113.
The toner image is fixed by the fixing roller section 115, and is transported in a fixed direction until it is ejected to the paper ejection tray IX6 after tk.

In addition, in the case of multiple image formation, after the fixing is completed, the fixing unit 11
5, the transfer material 102 is directed to the duplex/multiple conveyance path 119 by the paper deflection plate 117, passes through this, and is transferred to the drum 11 again.
0, the transfer material 1 is sent to the fixing roller section 115, and in the case of double-sided image formation, the transfer material 1 is sent by the discharge roller 120.
02, the discharge roller 120 is reversed during the discharge, and the paper is guided by the paper deflecting plate 117, passes through the conveyance path 119, and is sent to the drum 110.

In addition, as shown in FIG. 7, a manual feed tray 121 protrudes from the right side, a sheet material storage tray 122 is attached to the bottom of the device from the front of the device, and a duplex/multiple conveyance path 123 is provided. It is provided.

If the transfer material 102 is fed from the front to the double-sided/multiple sheet conveyance path 123 and the other conveyance paths are shared, except for the manual feed tray 121 of the copying machine shown in FIG. 7, the required space on the right side is eliminated. The appearance of a copying machine as described above has been desired because the copying machine can be easily installed.

(C) Problems to be Solved by the Invention However, in the copying machine 100 that manually feeds paper from the front, if the manual transfer paper 102 is not completely fed onto the orthogonal double-sided/multiple conveyance path 123, the conveyance path 12
The manual transfer paper 102 cannot be conveyed onto the paper 3, and if the conveyance is uncertain, the conveyance direction of the manual transfer paper 102 cannot be regulated. There is a problem in that the transfer paper 102 must be provided in the multiplex transport area so as not to interfere with the double-sided/multiplex transfer paper 102 to ensure that the transfer paper 102 is transported onto the transport path 123.

Therefore, the present invention provides a sheet material conveying device that reliably and accurately conveys manually fed sheet materials by providing a receiving plate that does not interfere with the sheet material conveyed from the sheet feeding device within the area of the first conveying path. The purpose is to provide

(d) Means for solving the problem The present invention has been made in view of the above circumstances, and includes:
For example, referring to FIGS. 1, 3, and 4, a sheet feeding device (7) that feeds a sheet material (6) from a sheet material storage section (5), In a sheet material conveying device (1) comprising manual paper feeding devices (50) and (33) that feed paper as needed,
It comprises a conveyance path (20) and a second conveyance path (26) that conveys the sheet material (6) from the manual paper feeder (50), (33), and these first and second conveyance paths (20). , (26)
have orthogonal intersections that intersect orthogonally in different planes, and the first and second transport paths (20
).

(26), the guide means (21) and (2
2), and furthermore, a receiving plate (34) for supporting the manual sheet material (6) is provided at the end of the second conveyance path (26) so as to be retractable into the first conveyance path, and the manual sheet feeding device (
50) and (33) are formed as part of the guide means (21) and (22).

(E) Based on the structure above the function, manually feed sheet material (6
) from the second conveyance path (26) through the receiving plate (34) provided at the end of the second conveyance path (26) and protruding onto the first conveyance path (20), the guide means (21), ( After paper is fed onto the first conveyance path (20) by the manual paper feeder (50), (33) forming a part of the guide means (21), (
22), the first transport path (20)'L is transported.

Further, the sheet material (6) fed from the sheet material storage section (5) by the paper feeding device (7) is conveyed on the first conveyance path (20). At this time, the receiving plate (34) is connected to the first conveyance path (
2o) and does not interfere with the conveyance of the sheet material (6).

Note that the above-mentioned symbols in parentheses do not limit the answer structure.

(F) Embodiments Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 4.

Fig. 1 is a detailed perspective view of the embodiment, Fig. 2 is an external perspective view,
3 is a longitudinal sectional front view of FIG. 2, and FIG. 4 is an explanatory diagram of the operation of FIG. 1.

Reference numeral 1 denotes a copying machine equipped with a manual feed port 2, a manual feed tray 3, and a cassette 5 on the front, that is, it is a front-loading type copying machine. Then, as shown in FIG. 3, the sheet material 6 stored in the cassette 5 is transferred to the pickup roller 7.
When the paper is separated and fed, the paper is transported to registration rollers 10 by transport rollers 9 . The registration rollers 10 position the sheet material 6 in synchronization with the image formed on the drum 11, and convey the sheet material 6 at a predetermined timing. Then, the drum 11 is charged by the charger 12.
The upper image is transferred to the sheet material 6, and is further transferred to the separation charger 1.
3, the sheet material 6 is separated from the drum 11, is conveyed to the fixing section 16 by the conveying section 15, and is fixed by this fixing section 16.

Then, the sheet material 6 on which a single image is to be copied on one side is discharged by a paper discharge roller 17.

Further, when most of the sheet material 6 on which a double-sided image is to be copied is discharged by the paper discharge roller 17, the paper discharge roller 17 is reversed and guided downward by the flapper 19.
The signal is sent to the multiplex bus 20.

Further, a sheet material 6 on which a single-sided multiple image is to be copied is fed into a double-sided/multiple path 20 by a flapper 19 .

Then, the sheet material 6 on which double-sided double and single-sided multiple images are to be copied passes through a pair of guide plates 21 and 22, and is again sent to the registration roller 10 by a refeed roller 23, where a predetermined copying operation is performed. .

Next, the configuration of the relationship between manual sheet feeding from the front and sheet material conveyance for double-sided and multiplexing, which constitutes the main part of the present invention, will be explained with reference to FIGS. 1 and 4.

Reference numerals 21 and 22 denote a pair of rectangular upper and lower guide plates described in FIG. 3, which are fixed parallel to each other and are pivotally supported on the copying machine main body by a pair of left and right bins 25.

In addition, 26 is a manual tray guide, and the manual tray 3 (
(See Figure 2) is fixed to the main body so that the surface is flush with that of the main body. An upper guide 29 is fixed to the main body above the manual tray guide 26. Further, a pressure arm 31 is pivoted to a bin 30 fixed to the main body below the manual tray guide 26, and this pressure arm 31 is connected to a fourth
As shown in the figure, the pressurizing arm 31 is moved up and down by an eccentric cam 32 driven by a pulse motor or the like (not shown), and is biased upward by a spring or the like on the back side of the pressurizing arm 31. A driven manual feed roller 33 is attached, and a push-up piece 3 that pushes up the guide plate 22 is attached to the rear end.
5 is attached, a long hole 31a is attached to the center of the front part, and a receiving plate 34 is pivotally supported at the rear end of the manual tray guide 26 via a shaft 34a, and the receiving plate 34 is positioned horizontally by a single-turn spring 34b. It is energized as follows. A solenoid 38 is attached to the lower surface of the receiving plate 34, and a core frame 38a of the solenoid 38 can be inserted into the elongated hole 31a when the pressure arm 31 is raised. Note that the copy start signal, the solenoid 38 and the pressure arm 31
The core frame 38a expands when the contact switch is turned on, and the solenoid 38 is turned off and retracted at the initial stage of inserting the manual sheet material 6. Further, a paper refeed conveyance drive roller 36 is rotatably provided in the main body facing in the front-rear direction, and is turned on and off from a drive source (not shown) via a clutch.

This paper refeed conveyance drive roller 36 is provided with a hole 37 passing through the guide plate 22, and the paper refeed conveyance roller 39 facing above the drive roller 36 is formed integrally with a shaft 40. Both ends of the bracket 41 are guided through elongated holes 42 in the vertical direction of a bracket 41 fixed to the guide plate 21, and the shaft 40, that is, the driven roller 39, is urged downward by a tension spring 43. The guide plate 21 is provided with a hole 45 through which the guide plate 21 passes. Further, a roller release arm 46 having a locking portion below the shaft 40 is pivotally supported by a pin 47 fixed to the guide plate 21, and the other end 46a of this arm 46 is attached to a protrusion 49 fixed to the main body. It is designed to be locked on the bottom side. Further, the upper guide 29 described above is penetrated downwardly,
A rotatably mounted manual paper feed drive roller 50 is rotationally driven by a pulse motor (not shown) or the like to face the manual paper feed roller 33.

Note that a reference guide surface 57 for the manual sheet material 6 is formed perpendicularly to the right side of the manual feed guide 26.

Next, to explain the configuration of the regulating means for regulating the direction of manual paper feeding, the front end of the guide plate 21 is bent upward at a substantially right angle to form a shutter member 51, and the sheet material 6 is formed into a shutter member 51. A sensor lever 52 that comes into contact with the end of the sheet material 6 when it abuts against the upper guide 51 is provided on the shutter member 51, and a photo interrupter 53 that is detected by this sensor lever 52 is provided as a pair with the sensor lever 52. A sensor lever 55 for detecting the rear end of the manually fed sheet material 6 and its photo interrupter 56 are provided as a set at 29 .

Note that, as shown in FIG. 4, the pair of manual paper feed rollers 33.
A reference numeral 50 is provided within a region C through which the sheet material 6 passes when double-sided/multiple copying is performed.

The limit line of this area is indicated by a dashed line.

Next, the operation of manual paper feeding will be explained.

In order for the copying machine 1 to operate, there must be no obstructions in the duplex/multiplex bus 20, ie area C. That is, in the state shown in FIG. 4(a), the solenoid 38 must be removed from the area. Therefore, when the operation switch (not shown) of the copying machine 1 is turned on, the pressure arm 31 is first raised, and when the pressure arm 31 comes into contact with the solenoid 38, the core frame 3
8a is extended and inserted into the elongated hole 31a, resulting in the state shown in FIG. 4(b), and then the pressurizing arm 31 descends together with the receiving plate 34, resulting in the state shown in FIG. 4(c). It is a preparation effect for work.

In the above state (the state shown in FIG. 4(c)), when the sheet material 6 is inserted from the manual paper feed port 2 along the reference guide surface 57 in the direction of arrow A until it hits the shutter member 51, At the beginning of insertion of the sheet material 6, the solenoid 38 is turned off, the engagement of the receiving plate 34 with the core frame 38a is released, and the fourth
The state shown in FIG. 4(a) changes from the state shown in FIG. 4(c). Then, a control section (not shown) senses the start of the manual feeding operation using sensor lever interrupters 52 and 53, and the sheet material 6 is corrected for skew feeding by the shutter member 51.

At this time, when the operator issues a manual copy start signal using a button (not shown) after confirming that duplex/multiple copying is not operating, this signal causes the control section (not shown) to rotate the eccentric cam 32 and push it up. The guide plates 21 and 22 are rotated upward around the bin 25 by the top 35 (see FIG. 1), and the upper surface of the guide plate 22 is held substantially flush with the upper surfaces of the manual tray guide 26 and the receiving plate 34, (At this time,
The paper refeed conveyance rollers 36 are all connected to the guide plate 22 up to the inner part.
The dimensions of the pressure arm 31 and the eccentric cam 32 are set so that they are located below the upper surface of the pressurizing arm 31 and the eccentric cam 32. ) The manual paper feed roller 33 is pushed upward by the manual paper feed drive roller 5.
At the same time, the contact switch between the pressure arm 31 and the solenoid 38 is turned on, and the core frame 38a engages with the elongated hole 31a. At the same time, the other end 46a of the roller release arm 46 is locked by the projection 49, and the back side of the roller release arm 46 rises, resisting the downward biasing force of the tension spring 43, and When the eccentric cam 32 completes approximately 180 degrees of rotation, a signal is issued, The control unit that receives the manual feed roller 50 drives the manual feed roller 50 to convey the manual sheet material 6 toward the back side at a predetermined speed.

Next, after the rear end of the sheet material 6 is detected by the sensor beam and the interrupter 55, 56, the manual paper feed rollers 36, 50 stop after being conveyed by a predetermined amount. As a result of this movement, the rear end of the sheet material 6 matches the limit line of the area C described above (the state shown in FIG. 4(b) is achieved).

Next, upon receiving the signal that the drive source for driving the manual feed drive roller 50 has stopped, the control section turns on the drive source for the eccentric cam 32 and rotates it approximately 180 degrees, as shown in FIG. 4(C). The pressurizing arm 31 descends together with the receiving plate 34 and returns to the state shown in FIG. 4(C). However, the sheet material 6 is held between paper refeed conveyance rollers 36 and 39.

Next, upon receiving the signal that the drive source of the eccentric cam 32 has stopped, the control section drives the paper refeed conveyance rollers 36 and 39 to convey the manual sheet material 6 in a direction perpendicular to the manual feed direction (in the direction of arrow B). Then, the image forming area (drum 1
1, a region such as the fixing section 16).

As explained above, when the manually fed sheet material 6 is butted against the shutter member 51, the end portion of the manually fed sheet material 6 is supported by the receiving plate 34, and the direction of the sheet material 6 can be accurately regulated. Even when the sheet material 6 is curled downward, the leading end of the sheet material 6 does not get caught on the guide plate 22, and jamming or the like can be prevented.

Next, another embodiment will be described with reference to FIG.

Members with the same configuration and function are designated by the same reference numerals, and the description thereof will be omitted.

In the embodiment shown in FIG.
4, a receiving plate 34' made of an elastic material (for example, Mylar) is attached to the rear end of the manual I/ray guide 26.

By doing this, in the state shown in FIGS. 5(a) and 5(b), that is, when the sheet material 6 is brought into contact with the shutter member 51 and when it is conveyed, the receiving plate 34' is substantially flat and holds the sheet material 6. When the manually fed sheet material 6 is conveyed in the B direction shown in FIG. 1, the receiving plate 34' is curved as shown in FIG. 4(c), and the sheet material 6 is moves on this receiving plate 34'.

Furthermore, when the double-sided/multiple sheet material 6 is re-fed and conveyed, it is conveyed in the state shown by the dashed line in FIG. do not have.

As explained above, this embodiment has a significantly simpler configuration than the previous embodiment, and furthermore, the receiving plate 34'
There may be no control mechanism for this.

(G) As described in detail, according to the present invention, the first conveyance path (20
) is supported by a receiving plate (34) protruding into the region of
3) and (50) ensure that the manual feed sheet material (6) is conveyed from the second conveyance path (26) to the first conveyance path (20), so when correcting the skew of the manual feed sheet material (6). ,
Highly accurate correction is possible. In addition, even manual sheet materials whose leading edges tend to curl can be reliably manually fed.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the vicinity of a guide plate according to an embodiment of the present invention, FIG. 2 is a perspective view of a copying machine implementing the present invention, and FIG.
The figure is a longitudinal sectional front view of Fig. 2, Fig. 4 is an explanatory diagram of the operation of the guide plate, Fig. 5 is a side view showing the vicinity of the receiving plate of another embodiment, and Figs. 6 and 7 are conventional side manual feeders. FIG. 2 is an explanatory diagram (vertical front view) of a copying machine with paper feed. 6...Sheet material 7...Paper feeding device (pickup roller) 20...First conveyance path (double-sided/multiple bus) 21.22...Guiding means (guide plate) 26...Second conveyance Path (manual feed tray guide) 34.34'...Receiver plate 50.33...Manual feed device (manual feed roller)

Claims (1)

[Scope of Claims] 1. A sheet material conveying device comprising a sheet feeding device that feeds sheet materials from a sheet material storage section and a manual sheet feeding device that feeds sheet materials as needed, comprising: A first conveyance path for conveying the sheet material from the paper device and a second conveyance path for conveying the sheet material from the manual paper feeder, and the first and second conveyance paths are orthogonal to each other in different planes. having orthogonal intersections, and
A guide means that serves as a common conveyance path for the first and second conveyance paths is provided at the orthogonal intersection, and a receiving plate that supports the manually fed sheet material is provided at the end of the second conveyance path toward the first conveyance path. A sheet material conveying device, characterized in that the sheet material conveying device is provided so as to be retractable and the manual paper feeding device is provided as a part of the guiding means.