JP2934966B2 - Recording paper sorting device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a recording paper sorting apparatus that sorts recording paper to be discharged in combination with a recording apparatus such as an electrophotographic copying apparatus.

[Background of the Invention]

When making conference materials or materials for distribution, etc. using recorded materials from a recording device such as a copying device, align the recorded materials after recording,
It is necessary to fold, perforate or bind, and the recorded matter is used and stored by stapling for each set or binding to a file.

Therefore, in a recording paper processing apparatus used in conjunction with a recording apparatus, it is desirable that a plurality of sets of recording paper be distinguished for each set.

2. Description of the Related Art In a recording apparatus such as an electrophotographic copying machine, a sorter apparatus is used in which a copy speed is increased, and a large number of originals are copied, and a large number of recording papers are aligned and collated and sorted. It became so. A general sorter system is based on a system in which a copy is discharged to a bin (shelf) for storing a copy. (1) Bin fixed system, (2) All bin moving system, (3) Open moving for each bin. There are three.

Each of these sorter devices is large in size and complicated in mechanism.

On the other hand, in order to distinguish a plurality of sets of recording paper for each set, the recording paper mounting surface on which the discharged recording papers are stacked and placed is moved up and down and left and right in the recording paper advancing direction. There is a discharge tray (shift tray) that is designed to be operated. In a recording paper processing apparatus having such a paper discharge tray, recording paper is supplied from the outside, passes through a transport path, is discharged from a paper discharge port, and is discharged from a paper discharge tray disposed opposite to the paper discharge port. They are stacked and placed on the recording paper placement surface. A paper discharge roller is provided in the vicinity of the paper discharge port, and rotates to urge the recording paper in the paper discharge direction. After one set of recording papers is stacked and placed, the discharge tray moves downward, and then shifts left or right in the recording paper traveling direction,
Move further upwards. After such a movement, the next set of recording paper to be discharged and stacked next to the recording paper of one set placed before it is right or left in the direction of travel of the recording paper. The recording papers of each set are distinguished from each other.

There is also a recording paper sorting apparatus in which the discharge roller is deflected to switch the recording paper discharge direction instead of shifting the discharge tray.

The recording papers of each set are easy to be bundled at once, and post-processing is performed so as to be easily used and stored by collectively punching, binding with staples, or binding files for each set.

[Problems to be solved by the invention]

By the way, in a recording paper post-processing apparatus (recording paper sorting apparatus) having a vertically movable discharge tray or a deflectable discharge roller for changing the discharge position of the discharge tray as described above, the recording apparatus main body is During transport to the discharge tray, the recording paper may be caught by the rotating transport roller, or may collide with the guide plate, resulting in poor transport of the recording paper.

In order to eliminate such a conveyance failure, for example, a jammed recording sheet, carefully pull out the recording sheet so as not to break the recording sheet sandwiched between the guide plates or the conveyance rollers. Was. For this reason, it takes a lot of time to deal with paper jams and the like, and when the recording paper sandwiched between the transport rollers breaks, it is very difficult to remove it.
Therefore, it was necessary to disassemble and inspect the recording paper post-processing apparatus each time.

In addition, when an abnormality occurs in a member such as a driving roller, a driven roller, and a guide member of the recording paper conveyance path, when inspecting and repairing the inside, the exterior member of the sorting device must be removed and disassembly work must be performed. Workability in a narrow place close to the wall surface of the recording apparatus main body has been difficult.

[Means for solving the problem]

The present invention has been made in order to solve the above-described problems, and can easily and quickly perform jam processing of recording paper,
It is an object of the present invention to provide a recording paper sorting apparatus capable of easily and surely performing maintenance such as repair and inspection.

Its purpose is to provide a discharge tray for collecting recording paper discharged from a paper discharge section of the recording apparatus main body, and a plurality of sheets of recording paper discharged one by one from the paper discharge section of the recording apparatus main body as a set. In a recording paper sorting apparatus that sorts a large number of sets of copied recording paper corresponding to each of the sets and discharges the discharged recording paper to the discharge tray, the recording paper to be discharged is located at a paper discharge unit side of the recording apparatus main body. Two vertically separable guide members for guiding the paper to the discharge tray side are disposed, loosely fit into a plurality of holes formed in the guide members, are exposed on the guide surface, and are disposed on the discharge unit side. A drive roller for the adjacent recording paper and a driven roller adjacent to the discharge tray are provided on the fixed member, and an endless belt is wound between pulleys provided on the drive roller and the driven roller, respectively. Synchronizes rotation and loosely fits into multiple holes in the other guide member Exposed on the guide surface, the driving roller and the driven roller are pressed against each other, and a number of pressing rollers for pressing the respective rollers are provided on the movable member side, and a driving source connected to the driving roller is provided on the fixed member side. The movable member is provided with a pivotal support portion on the discharge tray side so that the discharge portion side of the recording apparatus main body can be opened, and the recording paper discharged from the recording apparatus main body is vertically guided by the guide member. The recording paper is discharged to the discharge tray via a driven roller that is guided between the driven rollers and rotates synchronously while being nipped by the driving roller and the pressing roller. This is achieved by a recording paper sorting apparatus characterized in that a movable member provided with a pressing roller is rotated about the shaft support portion at the time of inspection, and the driven roller side of the upper and lower guide members can be opened.

〔Example〕

 Hereinafter, the present invention will be described with reference to the drawings.

The recording paper sorting apparatus exemplified below is an apparatus used in combination with a copying apparatus. As shown in the overall configuration diagram of FIG. 1, the recording paper sorting apparatus 1 is connected to the copying apparatus 2 at a position indicated by a broken line H. Being used.

Prior to the description of the recording paper sorting apparatus 1 to which the present invention is applied, the copying apparatus 2 will be briefly described.

A recording paper sorting apparatus 1 to which the present invention can be applied in a recording apparatus is for copying a plurality of sets of a copy original and obtaining at least one copy for each sheet. It is necessary for the copying apparatus 2 to have a function of sequentially and repeatedly copying a plurality of copied originals, and a circulating automatic original feeding apparatus (RDH apparatus) is suitable as an apparatus for this. It is also applicable to automatic document feeders (ADF devices). It is also particularly effective for a copying apparatus having an interrupt copying function.

As shown in FIG. 1, the copying apparatus 2 has an ADF apparatus 3
The ADF device 3 is configured to copy originals fed one by one by an ordinary electrophotographic process. Since the general structures and functions of the copying apparatus 2 and the ADF apparatus 3 are already known, they will be briefly described.

The ADF device 3 is mounted on a platen glass provided on the upper surface of the copying device 2.

The copying apparatus 2 includes an exposure optical unit A, an image forming unit B,
The paper feeding unit C includes a paper feeding unit C, a fixing unit D, a paper discharging unit E, an automatic duplex copying unit F, and a large-volume copy paper feeding device G.

The original placed on the platen glass of the copying machine 2
When scanning exposure is performed by the exposure optical unit A, a document image is projected on the photosensitive drum of the image forming unit B. Since the surface of the photosensitive drum is uniformly charged by the charger, the projected original image forms a latent image, which is developed by the next developing device to be a visible image, and is used for scanning exposure of the original surface. Synchronously, the image is transferred onto the recording paper (transfer paper) P fed from the paper feed cassette of the paper feed unit C by the transfer pole.

The recording paper P on which the visible image has been transferred is separated from the photosensitive drum by a separation pole, transported by a transport belt, fixed in a fixing unit D, and externally mounted on the copying apparatus 2 by a discharge roller 21 of a discharge unit E. Is discharged to

Although the simplest type of copying apparatus for performing one-sided copying from a one-sided original is exemplified, the recording paper sorting apparatus of the present invention is not limited to this type of copying apparatus. Of course, it is also possible to use in combination with a copying machine of the type which performs copying or duplex copying. In order to perform these types of copying, it is necessary to reverse the original or the transfer paper.
The device 3 needs mechanisms for that purpose, but since these mechanisms are already known and are not the gist of the present invention, the description is omitted here.

FIG. 2 shows a sectional view of the recording paper sorting apparatus 1 according to the present invention. The recording paper sorting apparatus 1 includes a pair of upper and lower guide members 111 and 12 for guiding and introducing a recording paper P from which a document is copied by a copying apparatus 2 and which is discharged from a paper discharge section E via a fixing section D of the apparatus.
1, drive roller 112, driven roller 113 and pressing roller 1
22, a transport roller member composed of 22, 123, a main frame member composed of a fixed frame 110, a movable frame 120, and a lid member 127, and a discharge tray 130, which is a discharge tray capable of moving vertically and horizontally, and a driving source 116, And a transmission system.

A motor 116 is fixed to a fixed frame 110 which forms a part of the main body of the recording paper sorting apparatus 1, and a driving roller 112,
A driven roller 113 is mounted on the shaft. The worm G1 fixed to the drive shaft of the motor 116 transmits rotation to the gear G4 via the worm wheel G2 and the gear G3 of the intermediate shaft 117, and drives and rotates the coaxial drive roller 112. To the driven roller 113, a rotational force is transmitted by a driving roller 112 via a belt 114.

A guide member (lower guide plate) 111 is provided on the fixed frame 110.
Is fixed at an angle. The guide member 111 is connected to the paper discharge guide plate 22 of the paper discharge unit E of the copying apparatus 2 and has the pressing rollers 112 of the driving roller 112 and the driven roller 113.
It is arranged below the nip position of 122,123.

Further, a fixed support 115 is provided on the upper end of the fixed frame 110 in the figure.
Has been planted. A bearing of an arm 126 fixed to the movable frame 120 is fitted to the fixed support shaft 115.

A lid member 127 is fixed to an upper portion of the movable frame 120. Thus, the movable frame 120, the arm 126, and the lid member 127 are integrated, and can swing about the fixed support shaft 115.

The guide member (upper guide plate) 121 is formed integrally with the bottom of the movable frame 120. The guide member 121 is provided to face the guide member 111, and introduces the recording paper P discharged from the paper discharge portion E, and
2. It guides and passes the inside of the transport roller member including the driven roller 113 and the pressing rollers 122 and 123.

An elastic holding member 124 having a spring property is attached to a part of the movable frame body 120 (upstream of the paper discharge), and a pressing roller 122 is rotatably supported at the tip of the elastic holding member 124. ing. The pressing roller 122 is pressed against the driving roller 112 by the spring pressure of the elastic holding member 124.

A shaft 128 extends through the other part of the movable frame body 120 (downstream of the paper discharge). A lever 125 that supports the pressing roller 123 is rotatably supported on the shaft 128 by being biased by a spring. The pressing roller 123 is urged by a spring and pressed against the driven roller 113.

A cover member 127 integral with the movable frame 120 covers the upper movable main body D of the recording paper sorting apparatus 1. The lid member 127
Has a handle for swinging the upper movable main body 12 relative to the lower fixed main body 11 to open and close.

The recording paper sorting apparatus 1 is provided with a sensor for detecting the discharge of the recording paper P and a sensor (not shown) for detecting whether or not the cover member 127 is closed.

The discharge tray 130 is driven by a tray lifting motor (not shown) and a tray shift motor (not shown). 1
When the last recording paper of the set is detected (last paper detection), a predetermined time (for example, 100 msec) elapses by a timer, and then the tray elevating motor is reversed to lower the paper discharge tray 130. When the end of the lowering of the discharge tray 130 is detected, the tray shift motor rotates to shift the discharge tray 130 in the left and right direction. After detecting the end of the shift operation of the discharge tray 130, the tray lifting motor is rotated forward to raise the discharge tray 130. Then, the second set of recording sheets is stacked on the first set of recording sheet bundle P1. The second set of recording paper bundles P2 is placed at a position shifted in the left-right direction from the placement position of P1 due to the shift operation of the discharge tray 130. The shift (shift amount) in the left-right direction is, for example, 30 mm.

After the detection of the last sheet, the drive of the drive roller 112 is stopped by stopping the motor 116 of the drive roller 112 for a predetermined time (for example, 100 msec) after the detection of the last sheet.

FIG. 3 is a cross-sectional view of the recording paper sorting apparatus in which the upper movable main body portion 12 is swung to open the recording paper conveyance path.
The figure is a perspective view thereof.

If the cover member 127 of the upper movable main body 12 is gripped and rocked in the counterclockwise direction (the direction of the dashed line arrow in the drawing), the upper movable main body 12 rocks about the fixed support shaft 115, The recording paper transport path formed by the guide members 111 and 121 of the upper movable main body portion 12 and the lower fixed main body portion 11 arranged vertically is stopped in the inverted inclined state shown in FIG. . In FIG. 4, P1 is a bundle of recording sheets of the first set, and P2 is a bundle of recording sheets of the second set.

In this open state, the recording paper P jammed in the transport path can be easily taken out. In addition, when performing operations such as inspection, repair, and maintenance of parts in the upper movable main body portion 12 or the lower fixed main body portion 11 of the recording paper sorting apparatus 1, the open state allows easy and quick implementation. it can.

〔The invention's effect〕

As described above, the recording paper sorting apparatus according to the present invention shifts the recording paper placement surface of the paper discharge tray to discriminate and stack a plurality of sets of recording paper for each set. In the apparatus, a guide member for guiding and transporting the recording paper and a transport roller including a drive roller and a driven roller are divided into upper and lower parts, and the upper movable main body part is swung so that the transport path can be opened. In addition, the recording paper jammed in the transport path can be easily and quickly taken out. Further, in this open state, the guide conveyance members of each of the upper and lower main bodies are exposed, so that work such as inspection, repair, and maintenance of each member can be quickly, easily, and reliably performed without disassembling each main body. In particular, the above operation can be easily carried out even on a transport path provided in a narrow space of the recording paper sorting apparatus 1 connected to the main body side wall of the copying apparatus 2.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a recording paper sorting apparatus and a copying apparatus according to the present invention, FIG. 2 is a sectional view of the recording paper sorting apparatus in a transport state, FIG. FIG. 4 is a perspective view thereof. DESCRIPTION OF SYMBOLS 1 ... Recording paper sorter, 2 ... Copying apparatus 11 ... Lower fixed main body part, 12 ... Upper movable main body part 110 ... Fixed frame body, 111 ... Guide member 112 ... Drive roller, 113 ... Driving Roller 114 Belt 115 Fixed support shaft 116 Drive source (motor) 120 Movable frame 121 Guide member 122,123 Press roller 124 Elastic holding member 125 Lever 126 … Arm, 127… Lid member 128… Shaft, 13… Output tray P, P1, P2… Recording paper

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B65H 29/20 B65H 7/06 B65H 33/08

Claims (1)

(57) [Claims] A discharge tray for collecting recording paper discharged from a paper discharge unit of the recording apparatus main body, and a plurality of recording paper discharged one by one from the paper discharge unit of the recording apparatus main body; In a recording paper sorting apparatus that sorts a large number of sets of copied recording papers corresponding to a document into sets and discharges the recording paper to the discharge tray, the recording paper sorting apparatus is positioned on a discharge unit side of the recording apparatus main body and discharged. Two vertically separable guide members for guiding the recording paper to the discharge tray side are arranged. The guide members are loosely fitted in a plurality of holes formed in the guide members, are exposed on the guide surface, and are disposed on the discharge unit side. A drive roller for the recording paper close to the recording paper and a driven roller close to the discharge tray side are provided on the fixed member side, and an endless belt is wound between pulleys provided on the drive roller and the driven roller, respectively. Synchronizes the rotation of the other and loosely fits into multiple holes of the other guide member ,
Exposed on the guide surface, the driving roller and the driven roller are pressed and opposed to each other, and a large number of pressing rollers that press and contact the respective rollers are provided on the movable member side, and the driving source connected to the driving roller is mounted on the fixed member side. The movable member has a pivotal support portion on the discharge tray side so that the paper discharge portion side of the recording device main body can be opened, and the recording paper discharged from the recording device main body is the upper and lower guide members. The recording paper is discharged to the discharge tray via a driven roller that is guided between the driven rollers and rotates synchronously while being nipped by the driving roller and the pressing roller. 2. A recording paper sorting apparatus according to claim 1, wherein a movable member provided with a pressing roller is rotated about said shaft support portion at the time of inspection, and a driven roller side of upper and lower guide members can be opened.