JPS5948338A - Paper feed cassette device - Google Patents

Abstract

PURPOSE:To facilitate pushing up paper by retreating a regulating plate for regulating the leading end of paper at the time of setting paper at a regular position from a paper regulating position after the leading end of paper is arranged in inserting a cassette. CONSTITUTION:When a lot of paper sheets 8 are stored in a tray 9 drawn out from a cassette device 5, and the tray 9 is inserted in the Q direction along a placing table 10, the tray 9 is stopped, with a convex portion 9-1 thereof brought into contact with a fixing metal 11. At this time, the leading end of paper is regulated by a regulating plate 35 and arranged. Subsequently, when the tray 9 is pushed, the convex portion 9-1 gets over the fixing metal 11 to be fitted in a convcave portion 11-1 and positioned there. At this time, when the regulating plate 35 is pushed by a projecting piece 41 until it exceeds a certain state, the regulating plate 35 is turned on a shaft 50 under the action of a spring 37 to retreat from the leading end of paper. After that, on closing a cover, the tray 9 is lifted by lifting means not shown, so that the uppermost paper 8 is brought into pressure contact with a paper feed roller 12.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cassette device that stores a large number of sheets of paper and feeds the stored sheets one by one. Throat 1. Spring 11′? Regarding. .

jQ5I [Paper feed section V, LJ'f1, which is used in a copying machine etc., accommodates a large number of papers, and the cassette 71-device has J and 1" dewhitening + U and C-1 1. This cassette device, which is widely used, has a horizontally curved position that allows the paper to be stored in 71 directions. .

Lever case 71 - device 1'~) 1, usually 111 sheets of paper II'
(In 2nd grade, there are 4 copies in 1st year of high school, and the number of iJ copies is 11 years). In that case, i; (□If you use a cassette device that accommodates about 200 to 250 sheets of paper, it will take a lot of time to attach and detach the cassette device and load the paper, and The handle was attached to the mouth, making it extremely difficult to operate.

Therefore, screw 7 like this] (to eliminate the misalignment, -.)
Make it possible to store a large amount of paper in ρ.
, a y-meter device is discussed. For example, according to the cassette device shown in FIG. 2, a tray 9 containing Mars paper is set, and the tray 9 is rotated about a fulcrum 19 to press the top paper 8 against the paper feed roller 12. , which feeds paper one sheet at a time. Here, when inserting the tray 9 containing the paper 8 in the Q direction and moving it from the 0 position to the I position, there is no problem with the relatively slow and smooth insertion force. However, when the tray 9 is quickly inserted and the tray 9 is held in a fixed position due to the amount of lead in the paper and its inertia, only the paper 8 is significantly displaced in the Q direction. This deviation is not constant because the January paper itself is in a free state without any restraints, and it may come into contact with other parts, or
Or, if the amount of misalignment was too large, there was a problem that tray 9 could not be moved.

In addition, in order to eliminate the drawbacks mentioned in -, in order to regulate the leading edge of the paper in the tray 9 that is inserted, if a paper regulating plate 35 is placed as shown in the figure opposite to the leading edge of the paper, it is possible to The leading edges of the sheets 8 housed in the paper 9 can be aligned. However, if the amount of paper 8 stored in the tray 9 is small, there is no problem with raising the tray, but if there is a lot of paper curling, the leading edge of the paper will be restricted when the tray 9 is raised. It comes into contact with the plate 35, which acts as a large resistance and protects the 1-shi 1 from damage. ? IC doesn't have a regulation plate], B1-
If the 1st paper of the month on the tray 911-1 is shifted, and a regulating plate is provided, the 1st paper of the tray 9 will be misaligned. There was a drawback that Yl was prevented.

The present invention was made in order to eliminate the disadvantages listed in item L. No. 1. After inserting the tray 9 (C paper leading edge 'fX: release the regulating plate that regulates it, take out the tray 9, and sometimes return the regulating plate to the paper regulating position. This is to perform Ilb O! on the target device.

The cassette 41j arrangement of the present invention will now be explained in detail with reference to the 10 drawings. FIG. 1 is a perspective view showing a specific example of the cassette device according to the invention, FIG. FIG. In the figure, 1 is the main body of the copying machine, 2 is a paper feed section to which a cassette device can be attached and removed, 3 is a paper feed roller provided on the main body side facing 71 to the paper feed section, and 4 is a paper fed by the paper feed roller. Copy the sheet of paper [This is a guide to guide you to the culm. In addition to attaching and detaching the usual cassette device for the above two paper feed units, jjf11,
This is a plan to also attach and detach the cassette device 5 that can accommodate sheets of paper in the misfire 1i71.

Next, I will explain about the (previously reported) of the case = y measuring device 5.

The cassette device 5 has a tip end that is the same size as a normal cassette, and has a structure that is attached to the paper feed section 2 of the copying machine main body, and has a storage section that stores a large amount of paper in a part that protrudes from the copying machine main body 1. ing. The paper storage section 111 is constituted by a space surrounded by a cassette device (frame) 7.7 erected on the bottom side 6 of the cassette. The cassette bottom plate 6 has a hinged lid (not shown) for opening the space for storing paper.
He has been criticized several times through. The paper 8 is not stored as is in the cassette device 5, but is stored in a paper replenishment tray 9 with a large open end.
Each container is placed on a mounting table 10 in the housing section. A fixing fitting 11 for identifying the tray 9 in a fixed position on the placing table 10 is fixed to the rear end of the mounting table] 0, and this fixing fitting 11 is attached to a fixing protrusion provided at the bottom of the tray 9. 9-7 and Section 1
1: Recessed portion 1.1. , is provided. This fixing fitting 11 prevents the tray 9 from slipping down when the tray 9 is placed in the upper row.

A cassette device j/, +5 is placed in the z1 direction near the tip of the above-mentioned placing table 10, especially near the tip of the paper 8 placed thereon.
A paper feed roller 12 is provided at the ゜ section. I 1. Fixed to the rotating shaft 14 which is rotatably held. I'm here. The roller holding plate I3 is fixed to a rotary shaft 15 which is rotatably held between both frames 1.7 so as to rotate +iJ. In other words, the paper feed slot/ra 12 is connected to the rotating shaft 15.
'lr-414 structure rotated around the center, li i
It is ICJ at the position shown in the figure which is vertically 4ζ due to rf.
, [・'s F is regulated by regulator i (IYI not shown).

A paper feed roller 16 configured similarly to the paper feed roller 12 is fixed to the rotating shaft 15, and the fed paper 8 is further copied by the action of the paper feed roller 16 (a number of paper feed units The paper feed rollers 12 and 16
The drive is carried out by a chain 1 between the rotating shafts 17-1, 1, 7-2, which are fixed to the middle part of the rotating shafts 14 and 15.
By rotating the rotation IIQl+l s, both rollers 12 and 16 are driven to rotate.The control signal for the rotation stop at this time is output from the main body of the copying machine. The paper feed rollers 12, 16 are made of a material such as rubber, which has a high coefficient of friction so that the friction with the paper 8 is stronger than the friction between the paper 8 and each other.

The above-mentioned mounting table 0 has its end opposite to the paper feeding side rotatably supported by a support 19, and the mounting table 10 has two trays 9 centered around the shaft 19. .

The paper feed end sides of the paper mounting table 10 are connected by a shaft 20, and both ends of the shaft 20 protrude from both frames 7.

In both frames 7, a guide groove 21 is formed in the shape of an arc to guide the protruding shaft 20 with respect to rotation about the mounting table 19'.

I'm here. One end of the protruding end of the shaft 20 is fixed with a - end of 1,722 for aligning the mounting table 10 in the - direction. The other end of the chain 22 is connected to a spring 24, which is one force means, through a spring 230 fixed to a rotating shaft 23 rotatably held by the frame 7. The other end is fixed to the frame 1.7. Therefore, the paper 8 on the mounting table 101-? When the paper 1-ray 9 is accommodated, the force of 1.1 of the spring 24 moves the paper 19 in one direction several times, and the paper feed roller 12 and the paper 8 are pressed against each other. be.

Also, as shown in the figure, there is a chip between the one sprocket 25 fixed to the rotation 1lIII 123 and the sprocket 27 fixed to the shaft 26 rotatably provided on the plate 7. , -n 28 is a, 1 digit, and 1° recorder 26 has a flywheel (Bregi wheel) 2!
Ill? ::l61 Arrived. flywheel 29r
j, small-11' 1 unit 10's 1 nige 1 has a suppressing force Ij, ・lA1. The steep - position of the table 10 suppresses the queue. Even when a monthly paper with a size of 111 or 111 is set, the biasing force of the spring 24 is suppressed by the flywheel 29, the sprocket 230 etc. are rotated slowly, and the loading table 10 is prevented from sudden ``dirty''. They will gradually move up the ranks. Here, although it is not shown in the figure, Sprocket 1
-27, when rotating clockwise in the figure, transmits its rotational force to the support 26, rotates the flywheel 29, reverse rotation is jq, and white 111 vc rotates without being restrained. A one-way clutch is connected to the valve 26. A brake means 30 for braking the rotation of the wheel is mounted on the flywheel V29. .

The brake means 30, as shown in FIG.
f The held lever 32 is rotatably supported on the frame 7, and a sedge link 33 rotates the lever 32 clockwise in the figure, and a sedge link 33 brakes the flywheel/l/29 against the A/1 force of the suge link 33. Solenoid 34 to release
It is composed of:

This lower brake stage 30 allows the mounting table 1o to gradually rise.
Then, it gradually accelerates due to the action of the flywheel 29,
A mechanism for controlling the flywheel 29 during the ascent in order to prevent collision with the roller 12 with considerable force 11-1;
It has a control circuit.

The present invention is constructed in a double series, and as shown in FIG. A regulating plate 35 is provided. The regulating plate 35 is rotatably supported between the bottom plate 6 of the cassette device and a plate 70 fixed to the negative portion of the cassette device as shown in FIG. - At the bottom of the control plate 35, position the is' of the regulation plate 35 indicated by the ladle 36.
The symbol ``;j37 stands on the regulation plate 35 and the bottom plate 6F.
8, which is a sedge link provided between the regulation plate 35 and
This is to rotate Δ. 1- Positioning piece 36
is fixed to the bottom plate 6. By contacting the positioning bin 39, the regulating plate 35 is positioned at the position J for paper regulation, and this state is maintained by the force of the sublink 37 in -1-1. In addition, the paper regulation plate 35 of the Sugelink 37 has rotated from the paper regulation position 1" (j 1°').
If you add 1 to 1, you move the regulation plate 35 in the opposite direction.

On the other hand, the positioning piece 36 has one end of a spring 40 fixed to the bottom of the tray 9 attached to the end opposite to the positioning bin 39 .

The above-mentioned Sugelink 40 controls the regulation plate 35 as
F? This is something that cannot be restored to normal. Further, a regulation plate 35 is attached to the bottom of the tray 9 for paper 10. Projection piece 41f for releasing from the control position; L: Fixed, and the projection piece 4
By pressing the regulating plate 35 together with the positioning piece 36 at step 1, the regulating plate 35 is released from the regulating position. Here, the positioning I'+' 36 is attached to the regulating plate 35 so as to be at position F from the bottom of the tray 9 into which it is inserted.

In addition, a micro switch 42 is mounted on one of the battle tables 10, and is used to detect the paper stored in the tray 9, and an actuating piece 42 is placed opposite the notch 9-2 formed in the tray 9. -1 is placed.

In the figure, reference numeral 43 indicates a guide plate that guides the paper 8 fed by the paper feed rollers 1.2 and 1.6 to the paper feed section 2 equipped with a cassette//) device, and 44 indicates a guide plate 43. Take it at the bottom of (;I
The paper detection switch 44-1 is arranged in the guide path of the paper 8. In other words, paper detection switch 4
Reference numeral 4-1 is used to cause the paper feed rollers 12 and 16 to feed the paper when the paper that has been fed is detected.

Next, the operation of the structure described in 5 will be explained.

As shown in FIG. When the tray 9 is inserted, the convex portion 9-1 is connected to the fixing metal fitting 11.
It touches and stops 1-. At this time, the leading ends of the sheets 8 in the tray 9 are regulated by the regulating plate 35 and aligned. The protrusion J'19-2 of the tray 9 has not pressed the regulation plate 35 yet. Next, when the tray 9 is pushed, the convex part 9-1 is attached to the fixing metal fitting 11.
The tray 9 is fixed in position by climbing over the four parts 11-1 and fitting into the four parts 11-1. At this time, the regulation plate 35 has the protrusion JJ,, 4
], and the regulation plate 35 is pushed in the direction of being released from the paper regulation position.

When this pressing is further performed and the state in which the regulating plate 35 is present is passed, the spring 37 pushes the regulating plate 35 by one force in the opposite direction of 71, and the regulating plate 35 shown in FIG. Free from. After the regulating plate 35 is rotated by the short link 37, the convex portion 9-1 of the tray 9 and the four portions 11-1 of the fixture 1 engage with each other. The state marked -1 means that the spring 37 is located at the rotational support shaft of the regulating plate 35, and the regulating plate 35 is applied with rotational force in either the clockwise or counterclockwise direction.
There is no state i:jli.

Once the paper 8 has been inserted as described in 3.1.2.2.2.2.2.2.2.2.2.2.2.2.2. By closing this lid, the brake means 3
0 solenoid 34 is energized, the braking force is released, and
The mounting table 10 is slowly and gradually arranged by the action of the flywheel 290. This J number pushes the paper 8 of the tray 9 and the paper feed roller 12, and when they reach a predetermined position, the solenoid 34 is de-energized and the brake is activated.
1-ray 9 stops at that position. be done. In this state, the paper feed roller 12 is driven to rotate according to the paper feed command 'F1. The top paper 8 in contact with the roller 12
The paper is then sequentially fed to the paper feed roller 3 on the copying machine main body side.

As the paper 8 gradually decreases due to this paper feeding, the paper feed roller I2 follows it by its own weight and comes into contact with the paper 8. Then, when the number of sheets decreases to a predetermined number F, the solenoid 34 is energized, and the solenoid 34 is raised to a predetermined position and stopped. This operation is repeated until the paper 8 in the 1-ray 9 runs out.

・,,\ Next, if the paper 8 runs out, it is detected by the micro inch 42, and the state is notified via the notification means. This opens the lid of Case 1-FJ/L (21-
Both Rays 9 and I + TK push the same stand 10, and as shown in Fig.
It is fixed at i/f.・If the mounting table 10 is immediately shifted 1-2, the sprocket 1-27 will spin idly regardless of the flywheel 29. Although the flywheel 29 tries to rotate in the direction of
l F, J: Fix it in that position.

In this state, the engagement between the tray 9 and the mounting table 10 is released, and the 1-lay 9 is pulled out in the direction (2) as shown in FIG. At this time of pulling out, tray 9 and position Lr' 3
6, the positioning J136 is pulled in the l', 11' +↑1 direction in FIG. Then, after the regulating plate 35 is rotated by the spring 40 at a certain position, d.

The ring 37 returns the sheet to the paper regulating position as shown in FIG. 4(a).

] - When the paper 8 is stored after the tray 9 is pulled out, the tray 9 is inserted as described above, and after the leading edge of the paper 8 in the tray 9 is aligned, the regulating plate 35 is released and the leading edge of the paper is aligned. is in a free state.

As explained above, the paper feeding section 1-cut device of the present invention allows the regulation plate that regulates the leading edge of the paper to be inserted into the sheet after aligning the leading edge of the paper. The structure is such that the leading edge of the paper is aligned when the paper is set, and the leading edge of the paper is aligned when the paper is set in the upper row. Since it is not regulated, it can be pushed with certainty.

[Brief explanation of drawings]

@Figure 1 is a perspective view showing the appearance of the paper feed feeder of the present invention at the time of paper loading, and Figure 2 shows the paper feed force center device of the present invention installed in the main body of the copying machine. FIG. 3 is a 9-part perspective view showing in detail the essential parts of the cassette device of the present invention, and FIGS. 4(a) and 4(b) are operation explanatory diagrams for explaining the operation of the present invention. 1: Copying machine body 2: Paper feed section 3: Paper feed) 110-
Ra 8: Paper 9 Nidorei 1゜: Placement stand
12, 16: Paper feed row 2-20: 22: H, -
23: Sprocket 24 Nisprink 3
o Nib breaker means 35: Regulation plate 36: Can neck ρ4
Mej137: (For regulating plate rotation) Splinter 3: Positioning bin 4o: (For regulating plate returning) Snow□ ring 41: Protrusion piece 42: Paper detection II + microsinch

Claims (1)

[Claims] 1. A cassette device removably installed in a paper feed section of a copying machine main body, which has a storage section for storing one company's paper in a protrusion of the copying machine main body, and is rotated about a fulcrum in the storage section; 71 units for holding the tray containing the sheets of paper IIy in the fixed position, and a paper feed roller that is always set so that the positioning table is always on one side and 1 side in the direction of Press the paper to the section 1~
A push-up mechanism, a regulating plate for controlling the leading edge of the paper and aligning the leading edge when placing the tray on the tray described in -1-A, and interlocking when placing or pulling out the 1-lay on the tray described in -1-1. and release the above-mentioned regulation plate to the paper regulation position.
-1) A force centering device for paper feeding, comprising a regulating plate drive mechanism that performs the following.