JPH03272940A - Paper feeding device - Google Patents

Abstract

PURPOSE:To prevent any wasteful use of paper sheets and prevent the generation of jam and skew by installing a paper sheet returning member so as to project in a feeding passage on the outlet side of a paper assorting part from a retreat position during a paper sheet feeding process and accommodating the paper sheets into a paper sheet container. CONSTITUTION:The paper feeding device in the title is constituted of a paper feeding roller 1 which are revolved by a transmission belt 8, and a paper assorting roller 2, a paper advance controlling member 3 which is installed in swingable manner around a shaft 9 by a solenoid 6, and a paper returning member 7 which is fixed on a rotary shaft 10 and supported in swingable manner. In paper sheet feed, the paper advance controlling member 3 is separated from the paper assorting member 2 by turning ON the solenoid 6, and a paper feeding board 5 is lowered. Further, the paper returning member 7 is turned in the counterclockwise direction, and the paper sheet set between the paper assorting roller 2 and the paper advance controlling member 3 is pushed back on the paper feeding board 5. Accordingly, the wasteful use of paper sheets and generation of jam and skew are prevented, and the operation performance and reliability of the paper feeding device can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [1] Moriyoshi Mekemi 1 The present invention provides a method for feeding paper from a paper feeding container in which paper is loaded by a feeding means disposed on the paper feeding container, and by a paper handling means for separating the paper. A paper handling section located outside the feeding side end of the paper feeding container separates the sheets of paper and feeds them one by one to a paper feeding device.

A device that re-stores the paper that has been taken out of the paper feed center when removing the paper feed cassette into the paper feed center is as follows:
At the same time as drawing out the paper feeding power cent, the pressure at the pressure contact between the rollers that make up the paper handling section and the paper advance control member is released,
A device has been introduced in which paper is re-stored inside the paper feed center using a paper return plate (Utility Model Publication No. 1999/1999).
(See Publication No. 828).

In a copying machine or the like equipped with a paper feeding device, the paper is caught between the paper handling section of the paper handling means of the paper feeding device, for example, a roller and a paper advance control member. feeding may be stopped. In a paper feeding device that uses a paper cassette as a paper feeding container, if the paper feeding cassette is removed in such a state, the paper will remain inside the copying machine and may fold or fall to the floor.

Father D-Do-Ring I! In a paper feeder with a paper feed tray, paper can be replenished by pushing the paper feed tray with the paper sandwiched between the paper and the paper advance control member. ,
Also, if you raise the paper feed table and start printing again with the paper sandwiched between the sheets, the paper may bend or the skis may
- or 4 jams may be emitted.

Furthermore, in the paper feeding unit of the fluorocarbon l-+ coding system, which is often seen in recent copying machines, etc. If you pull out the table while it is stuck between the parts, the paper will tear and pieces of paper will remain inside the machine, and if the paper is in the area where the jam is being detected, the table will not be pulled out. ), so I have to remove this paper from the other takeout 1- before pulling out the table.

In order to solve this problem, there are few paper feeding devices that have a mechanism for re-storing the paper picked up by the paper handling section into the paper feeding container, and the above-mentioned device 7 is an example of this. .

But this device C! Since the door U7 member is partially provided upstream in the paper feeding direction from the contact part between J', , I', 'l・-) and the paper advance control member, it protrudes from the contact part to the downstream side and is pinched by J7. It is not possible to feed paper that is often damaged.

An object of the present invention is to solve such problems and provide a paper feeding device that can re-store the paper remaining in the paper handling section in the paper feeding container at least when replenishing paper.

This L8- Solving - Katsuzu Moxibustion - Yuginq) - 1st stage This invention is ↓ -
In order to solve the problem described above, the paper feed container 11? A paper feeding device that feeds paper by a Z-arranged feeding means, and uses a paper handling means to separate the paper at a paper handling section located outside the feeding end of the paper feeding container and feeds the paper one sheet at a time. At least when replenishing the paper feed container with paper, the paper is evacuated from the feed path, protrudes from a position on the exit side of the paper handling section to the feed path, passes through the feed path, and is connected to the paper feed container. It is characterized by providing a sheet return member 1 that reciprocates up to the vicinity of the sending end.

According to the present invention, when replenishing paper, the paper return 17 member is projected from the retracted position to the feeding path on the O side for the paper handling section and reciprocated to the end of the paper feed container. 4. Paper that has protruded to the [-] side for the paper handling section will be pushed back to the paper feed container. - Become.

Embodiment FIG. 1 shows the feeding section of the paper feed 2T of the embodiment, and FIG. 2 shows the mechanism of the paper handling section and paper return member section.

As shown in these figures, the paper feeding device includes a feeding means, a paper feed 1 cola I, a paper separation row 2 which is an example of a paper separation stage 1, a paper advance control member 3, and a paper advance control member 3. A front wall plate 4 and a paper feed tray 5 forming a part of the paper container as an example,
A solenoid device 6 is used to separate the paper advance control member 3 from the paper separation roller 2, and a paper return device (7) is an example of a paper return member.
It is composed of members 7 and the like.

Is there a drive source for the paper feeder Laonia 1? , it is rotated in the direction of the arrow Q, and the paper feed tray 5! This stack of paper■
).

The seven paper feeding units 5 are operated by a drive source (not shown) 21. The paper F is designed to rotate downward, and when feeding, the paper P is pressed against the paper feed row 1.

A front wall plate 4 is provided at the front end 6.7 of the paper feeding table 5 in the feeding direction, and the loaded paper 1) is transported to the front end 6.7 of the tray 5 in the feeding direction. You can position it by the edge (Kona-・
Koi Otsu.

The paper separating roller 2 is installed on one side of the front barrier board 4 ("1").
Then, the transmission bell 1-8 is quickly connected to the sheet feeder [7-'71] and rotated in the same direction as the belt 1.

The paper advance control member 3 faces the paper separation roller 2 with the shaft 9 as a fulcrum on the outside of the front wall plate 40).
, ”-,: Disposed and biased towards the paper sorting roller 2 side by a scrubber/glue (not shown), and the paper is sorted at the pressure contact portion between the cola 2 and the paper advance control member 3. The paper advance control member 3 is connected to a solenoid device 6, and rotates about a shaft 9 between a position where it is pressed against the paper separation roller 2 and an open position. be done.

The paper return member 7 is disposed below the paper feeding path on the downstream side of the paper advance control member 3 in the feeding direction, is fixed to the rotating shaft 10, and is driven to reciprocate and rotate by a driving means (not shown). It is now possible to do so.

Further, a paper guide plate 1 is provided on the downstream side of the paper separating roller 2 in the feeding direction.
1.12 and a feed roller I3.14.

The operation of such a paper feeding device is as follows.

In the state shown in FIG. 1, the paper feed table 5 has been raised by a lifting mechanism (not shown) and is at the paper feed position, and the uppermost paper P0 is in contact with the paper feed roller 1. At this time, the paper return member 7 is in a position retracted from the paper feeding path so as not to interfere with the feeding of the paper P0.

In this state, the paper P is sent out by the rotation of the paper feed roller I, and its leading end is connected to the separation roller 2 and the paper advance control member 3.
When the paper P0 enters between the paper guide plate 11.
It is transported in 12 directions.

That is, even if the paper P1 is taken out together with the paper P0 by the paper feed roller 1, the paper P1 will not be carried out by the paper advance control member 3.
The paper P0 is prevented from advancing by the frictional force between the
only will be delivered.

In this way, the sheets P are sent out one after another, and the next sheet P is sent out.

is sandwiched between the paper sorting roller 2 and the paper advance control member 3. In this state, even if the solenoid device 6 is turned on, the paper advance control member 3 is set to the open position, and the paper feed table 5 is sewn under the paper feed tray 5, the paper P1. ．． Since the paper P is pinched, the paper P, which is pinched, will only be in the state shown in FIG. 1 cannot be stored again on the paper feed table 5.

In the present invention, a paper return member 7 is provided, and when replenishing paper by sewing the paper feed table 5, the paper return member 7 is rotated counterclockwise about the rotating shaft 10, and the paper separation roller 2 and the paper advance control member 3 to push the leading edge of the paper, the paper P1. ．． Push back. Note that such an operation is performed by sewing the paper feed table 5 under stitching, and as shown in FIG. 4, the paper feed roller 1 and the paper P. It is desirable to reduce the distance from 1. This is because if the gap is large, the paper will fold and become stiff as shown in FIG. 5, and it will not be possible to return it to the paper feed tray 5.

When the paper return member 7 is rotated to the vicinity of the front wall plate 4 to return the paper onto the paper feed tray 5, it is immediately rotated clockwise and reciprocated to a position where it is evacuated from the paper feed path. .

This operation of returning the paper is performed at least when replenishing paper by understitching the paper feed tray 5, but it can also be performed when copying, printing, etc. of a set number of prints are completed.

If the above operation ensures that the paper sandwiched between the paper sorting roller 2 and the paper advance control member 3 is returned onto the paper feed tray 5, paper P remains in the machine and jams and skews do not occur. etc. can be prevented.

In this embodiment, the paper sorting means is a separation pad type using a paper sorting roller 2 and a paper advance control member 3, but the present invention can also be applied to other types of sorting means, such as a roller type sorting means. be. Moreover, the paper advance control member 3
The solenoid device 6 is used to separate the paper from the separation roller 2, but it may be linked to the driving position of the paper feed roller 1 (appropriate position or height for paper feeding) or the movement of the paper feed tray 5 (lower kidney). It is also possible to use a method in which it is linked with.

Furthermore, although the paper feed tray 5 is illustrated as an example of a paper feed container, the present invention can also be applied to a paper feed cassette, a front loading type paper feed unit, or the like.

Effects As described above, according to the present invention, the paper taken out from the paper feed container and caught in the paper handling unit can be stored again in the paper feed container, so that paper is not wasted and paper jams and paper jams are avoided. Problems such as skew and falling are prevented, and paper feeding and device operability and reliability can be improved.

[Brief explanation of drawings]

Fig. 1 is a sectional view of the feeding portion of the paper feeding device of the embodiment, Fig. 2 is a partial perspective view thereof, and Figs. FIG. ...Paper feed 1 cola (feeding means) ...Paper separation roller (paper separation means) ...Paper advance control member (paper separation 1st stage) ...Front wall plate (feeding means) Paper container) ...Paper feed stand (Paper feed container) ...Paper return member ...Paper agent Patent attorney Takeshi Ito, -2'・〉

Claims (1)

[Scope of Claims] Paper is sent out from a paper feeding container in which paper is loaded by a feeding means disposed on the paper feeding container, and a paper handling means for separating the paper feeds out the paper from a paper feeding container in which the paper is loaded, and the paper is fed out from the feeding side end of the paper feeding container by a paper handling means that separates the paper. In a paper feeding device that sorts sheets of paper and feeds them one by one in a paper sorting section located in A paper feeding device comprising a paper return member that protrudes into a feeding path and reciprocates through the feeding path to near the feeding side end of the paper feeding container.