JPH0427896Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is a sheet storage device for a device that processes sheets in large quantities and at high speed, such as an optical character reader, and in particular, a sheet storage device for storing processed sheets in an orderly manner. The present invention relates to a seat storage device that detects a full state of a seat.

[Conventional technology]

The sheet storage device is designed so that sheets can be easily taken out from the storage device regardless of the sheet size (length, width) even when sheets of various sizes are ejected with considerable velocity energy by the ejection roller. It is desirable to have something that can be stored neatly at all times.

FIG. 5 is a perspective view showing a conventional example of this type of seat storage device, and the same technology is disclosed in Japanese Utility Model Publication No. 53-29065.

In the figure, 1 is a pair of ejection rollers of a sheet processing device (for example, an optical character reading device) (not shown), 2 is a rotatably mounted sheet guide lever, and 3 is a loading table on which sheets 4 are stacked and stored. Stand 3
is fixed near its base end with a rotatable shaft, and a torsion spring 5 applies rotational correction to the sheet guide lever 2.

A roller 6 is rotatably provided at one end 2a of the sheet guide lever 2, and an actuator 7a of a switch 7 is disposed within the rotation locus of the other end 2b of the sheet guide lever 2.

With the above configuration, the processed sheet 4 is discharged between the sheet guide lever 2 and the mounting table 3 by the discharge roller pair 1. At this time, the roller 6 of the sheet guide lever 2 comes into contact with the stacked sheets 4, and the sheet guide lever 2 is rotated in the direction of arrow B according to the stacked height of the sheets 4.

When the seat 4 reaches the preset full state, the seat guide lever 2 finally pushes down the actuator 7a of the switch 7 with its other end 2b, and the switch 7 is thereby actuated.
Detects the full state of sheets in the device.

When removing the stored sheet 4, use the torsion spring 5.
The sheet 4 is pulled out in the direction of arrow C by pushing down the mounting table 3 whose rotation is corrected to the sheet guide lever and releasing the pressed state of the sheet guide lever 2.

[Problem that the invention attempts to solve]

However, according to the conventional technology having the above-described configuration, the structure of each component is complicated, resulting in high manufacturing costs and difficulty in miniaturizing the device.

In addition, since the processed sheets are always discharged while being pressed against the sheet guide lever, depending on the size, thickness, thickness, etc. of each sheet, as well as the environment such as temperature and humidity, the sheet bends at the roller part, and the roller There was a problem in that the material could become entangled.

Furthermore, when taking out the stored sheets,
The stacked sheets must be picked up by the hand and taken out laterally while pushing down the mounting table with one hand, resulting in poor operability.

In view of the above-mentioned problems, it is an object of the present invention to provide a seat storage device that uses a simple and inexpensive mechanism to detect the full state of stored seats without damaging the seats.

The present invention further provides a sheet storage device that uses a simple and inexpensive mechanism to stack ejected sheets in an orderly manner regardless of the size or thickness of the sheets to be stored, and that has good operability when taking out stored sheets. The purpose is to obtain.

[Means to solve the problem]

The present invention provides a sheet processing apparatus having a stacker that sequentially stacks processed sheets one by one. a rotating stack cuffle lever; a sheet contacting means provided at one end of the stack cuff lever that abuts against sheets accumulated in the stacker to regulate the rotation angle of the stack cuff lever; and the stack cuff full lever. The apparatus is characterized in that a detection means for detecting the rotation angle of the stacker full lever is provided, and the amount of sheets in the stacker is determined based on the rotation angle of the stacker full lever.

[Effect]

With the above configuration, in the present invention, when the sheet is discharged to the stacker, the discharge lever rotates, and the stacker full lever rotates in conjunction with this. Here, the sheet abutting means comes into contact with the sheets accumulated in the stacker, and the rotation angle of the stacker full lever is regulated according to the amount of accumulated sheets, and this rotation angle is detected by the detection means, and the stacker is in the stacker full state or before. status can be determined.

〔Example〕

Examples will be described below with reference to the drawings.

FIG. 1 is a side sectional view showing an embodiment of the present invention, and FIG. 2 is a plan view thereof.

In the figure, reference numeral 8 denotes a pair of discharge rollers of a sheet processing device (for example, an optical character reading device), which is not shown;
Reference numeral 10 indicates a stacker in which the sheets 9 are stacked and stored, and the stacker 10 is fixed to a side plate 11 of the sheet processing apparatus as shown in FIG.

Reference numeral 12 denotes a discharge lever mounted to be rotatable clockwise around a shaft 13, and 14 denotes the discharge lever 12.
is a torsion spring that corrects rotation in the counterclockwise direction about the shaft 13, and the torsion spring 14 is wound around the shaft 13, and one end is hooked to the surface opposite to the sheet mounting surface of the stacker 10. The other end is hooked onto the ejection lever 12.

Further, the ejection lever 12 is connected to the sheet guide 1.
By protruding into the square hole 16 provided in 5, rotation correction is suppressed so that it does not rotate counterclockwise beyond a certain angle.

Reference numeral 17 denotes a stack cuff lever that is rotatably mounted around the shaft 13. This stack cuff lever 17 has one end in contact with the sheets 9 accumulated in the stacker 10, and the rotation angle of the stack cuff lever 17 is adjusted. It has an abutting part 18 for regulating the flow rate, and a blocking part 19 for blocking photomicrosensors 23 and 24, which will be described later, at the other end.

Reference numeral 20 denotes a torsion spring that rotates the stack cuff full lever 17 about the shaft 13 in conjunction with the rotation of the ejection lever 12, and also corrects the rotation of the stack cuff full lever 17 in the clockwise direction. The torsion spring 20 is wound around the shaft 13, and has one end hooked on the ejection lever 12 and the other end hooked on the stackable lever 17.

Furthermore, a pin 21 is fixedly installed in the stud-cuffle lever 17 as a limiter for correcting the rotation, and by bringing the pin 21 into contact with the ejection lever 12, the rotation is corrected so that it does not rotate counterclockwise by more than a certain angle. has been suppressed.

On the other hand, the stacker 10 is provided with a notch 22, and when the contact portion 18 of the stacker full lever 17 rotates clockwise about the shaft 13, the stacker 10 flies onto the sheet placement surface of the stacker 10. It's starting to come out. Note that the notch 22 has a depth that prevents the stackable lever 17 from coming into contact with the bottom of the notch 22 even if the stackable lever 17 rotates by a certain angle.

Furthermore, the spring constant of the torsion spring 20 is set smaller than that of the torsion spring 14 so that the ejection lever 12 does not swing when the sheet has not passed through.
The discharge lever 12 is prevented from rotating even if it comes into contact with a pin 21 fixed to the stacker full lever 17.

23 and 24 are photomicrosensors;
The photomicro sensor 23 is for detecting that the sheet 9 has been discharged, and the photomicro sensor 24 is for detecting that a certain number of sheets have been deposited on the stacker 10.

That is, the photomicrosensor 23 is normally blocked from light by the blocking portion 19 of the stacker full lever 17, indicating a state in which the sheet 9 is not discharged toward the stacker 10, that is, a state in which the next sheet is waiting to be discharged. In addition, Stats Cuffle Lever 1
7, when the sheet 9 is ejected in the direction of arrow D, the ejection lever 12 rotates clockwise, and the torsion spring 2
0, the sheet 9 rotates clockwise around the shaft 13, and just before the rear end of the sheet 9 comes off the ejection lever 12, the blocking part 19 comes off, allowing light to pass through the photomicro sensor 23. is detected to be discharged to the stacker 10.

On the other hand, the photomicro sensor 24 normally has the blocking part 19 off and the light passes through it, and the sheet 9
When the stacker 10 has accumulated less than a certain number of sheets, that is, before the stacker is full, when the sheet 9 is discharged in the direction of arrow D, the sheet 9 rotates the discharge lever 12 clockwise, and the torsion spring 20 rotates the discharge lever 12 clockwise. The lid full lever 17 is rotated clockwise to a position where the light from the photomicro sensor 24 passes through, thereby determining that the lid is not full. Furthermore, the sheet 9 is in the stacked state, that is, the seat 9 is stacked in the stacked state.
When a certain number or more of sheets have been accumulated in the stack 0, when the sheet 9 is discharged in the direction of arrow D, the discharge lever 12 is rotated clockwise by the sheet 9, and the stack cuff full lever 17 is further interlocked by the torsion spring 20. However, since the rotation ends at a position that blocks the passage of light from the photo micro sensor 24, the photo micro sensor 24 detects the lid full lever 17 and determines that the lid is full. It's summery.

The operation of this embodiment with the above configuration will be explained with reference to the drawings.

FIG. 3 is a side sectional view showing the state before the stack is full in this embodiment, and FIG. 4 is a side sectional view showing the stack full state in the same embodiment.

First, before the sheet 9 is ejected, the ejection lever 12 is at the rotation correction limit position as shown in FIG. 1 due to the biasing force of the torsion spring 14.

At this time, the stack full lever 17 is in contact with the ejection lever 12 at the pin 21 due to the torsion spring 20, and the cutoff section 19 cuts off the photomicro sensor 23, and the device is in a standby state for sheet ejection. to be detected.

Next, when the sheet 9 is ejected in the direction of arrow D, the ejection lever 12 rotates clockwise and the torsion spring 2
0, the stacker full lever 17 is interlocked and rotated clockwise.

At this time, the blocking portion 19 that had previously blocked the photomicrosensor 23 shifts, allowing the light from the photomicrosensor 23 to pass through, thereby detecting sheet discharge.

Next, as shown in Fig. 3, the stacker 10 is
If the inner seat is not in a full state, the contact part 18 of the stack full lever 17 is deep, so the blocking part 19 rotates greatly and moves to a position beyond the photo micro sensor 24. do. As a result, light continues to pass through the photomicro sensor 24, and the photomicro sensor 24 detects that the stacker is not full.

When the sheet 9 in the stacker 10 is in a full state as shown in FIG. 4, the stacker full lever 17
Since the abutting position of the abutting part 18 is shallow, the blocking part 1
9 rotates a little accordingly and remains at the position where the photomicro sensor 24 is blocked. As a result, the photomicro sensor 24 is blocked from light and detects that the stacker is full.

By detecting this stack full state, it is possible to temporarily prevent the sheets 9 from being ejected until the accumulated sheets 9 are removed, or to set a full state indicator light to turn on. .

When taking out the sheets 9 accumulated in the stacker 10, simply take a handful of them and remove them from the stacker 1.
Just take it out from 0.

[Effect of idea]

As explained in detail above, according to the present invention, there is a discharge lever that rotates when sheets are discharged to the stacker, a lid cuff full lever that rotates in conjunction with the lever, and a lid cuff full lever that is provided at one end of the stack cuff lever. sheet abutting means for regulating the rotation angle of the stacker full lever by contacting the sheets accumulated in the stacker, and a detection means for detecting the rotation angle of the stacker full lever, the rotation of the stacker full lever is provided. Since the amount of sheets in the stacker is judged based on the angle, it is possible to detect the accumulation of sheets in the stacker by the sheet ejection action, and there is no need for a means to constantly press the sheets, such as a conventional sheet guide lever. This has the effect of being able to detect the full state of the stored seat without damaging the seat using a simple and inexpensive mechanism.

Further, according to the present invention, the sheets are simply stacked on the stacker and the sheets are always kept open, so there is an effect that the operability in taking out the stored sheets is very good.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view showing an embodiment of the present invention, Fig. 2 is a plan view of the same, Fig. 3 is a side sectional view showing the same embodiment before the stack is full, and Fig. 4 is a side sectional view of the same embodiment. FIG. 5 is a side sectional view showing a stacked full state, and a perspective view showing a conventional example. 8... Discharge roller pair, 9... Sheet, 10...
Stakka, 12...Ejection lever, 13...Shaft, 1
4...Torsion spring, 17...Statzcaffle lever, 18...Contact portion, 19...Blocking portion, 20...
Torsion spring, 23, 24... photo micro sensor.

Claims (1)

[Claims for Utility Model Registration] A sheet processing device having a stacker that sequentially stacks processed sheets one by one, comprising: a discharge lever that rotates when sheets are discharged to the stacker; and a discharge lever that rotates in conjunction with the lever. a stack cuff full lever that rotates in the same direction as the stack cuff lever; a sheet abutting means provided at one end of the stack cuff lever that contacts sheets accumulated in the stacker to regulate the rotation angle of the stack cuff full lever; A sheet storage device comprising: a detection means for detecting a rotation angle of a stacker full lever; and the amount of sheets in the stacker is determined based on the rotation angle of the stacker full lever.