JPS63665Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a paper sheet holding mechanism used in automatic teller machines and the like, and particularly to a paper sheet holding mechanism with an improved belt swinging mechanism.

In an automatic deposit machine, when paper sheets to be deposited are inserted into the slot, they are sent to a discrimination section, where the authenticity, denomination, and amount are counted. As a result of the identification, the fake paper leaf is sent to the return slot. The value of the true paper leaf is confirmed and it is inserted into the paper leaf storage box. FIG. 1 is a side view schematically showing an automatic teller machine. The banknotes 2 inserted into the slot 3 are separated one by one along the guide plate 1 by rollers R1, R2, R3, and R4 and fed out in the direction of arrow A. The fed banknotes 2 are sent to the validation section BV by rollers R5 and R6. In the discrimination section BV, authenticity and denomination are determined, and the money is sent out in the direction of arrow B, transferred between belts B1 and B2, sent out along gate G in the direction of arrow C, and temporarily stored in pool section 5. The pool portion 5 is provided with belts B3, B4, B6 and guide plates 6A, 6B, and the belt B6 receives the banknotes 2 sent out in the direction of the arrow C, and always moves them toward the guide plate 6B side by the rotational drive of the arrow. Press and arrange as shown in bill 2'. However, as a result of the discrimination, the banknote 2 determined to be a counterfeit banknote is transferred between the belts B1 and B2, and by the rotation of the gate G, the banknote 2 is further transferred to the roller R.
7 and the belt B5, and the roller R
8, R9, R10, and R11 to the return port 4 in the direction of arrow F. When all of the inserted banknotes 2 have been verified, the amount is confirmed. Next, in the case of a deposit instruction, the held banknotes 2 are transferred to a banknote storage box by a pusher (not shown).
Inserted into CN. In the case of a deposit cancellation command, belt B4 moves in the direction of arrow D, belt B3 moves in the direction of arrow E, and the banknote 2 is held between them.Belts B3 and B4 are each rotated in the direction of the arrow, and the held banknote 2 is transferred. Furthermore, it is pinched and transferred by the contact portion of belts B5 and B1, and rollers R8, R
9, R10, and R11 to the return port 4. The sheet holding mechanism in such a pool section has a conventional structure shown in FIG. FIG. 2 is a side view of a conventional sheet holding mechanism. Belt B4 includes rollers 16, 17, 18, 1 mounted on the frame 40.
It is suspended by 9. A slide 41 is fixed to this frame 40, and a guide shaft 42
along arrows D and D'. On the other hand, rollers 31 and 32 are opposite to this belt B4.
A belt B3 is provided which is stretched by a belt B3 and moves in the directions of arrows E and E'. Belt B3 and B
4 are usually retracted from the pool portion 5 to the positions indicated by dotted lines. The feeding of banknotes 2 in the direction of arrow C is completed, and in the case of a deposit, the banknotes 2 are stored in storage box CN by the pusher. To return belt B4, move in the direction of arrow D, and belt B3 in the direction of arrow E.
direction, clamps the bill 2, and belts B4, B
3 is driven as indicated by the arrow, and the clamped banknote 2 is transferred, being clamped and transferred by belt B5 stretched by rollers 12, 13, and 14 and belt B1 stretched by roller 11. and sent out in the direction of the return port indicated by arrow F. In such a paper sheet holding mechanism, the clamped banknotes 2 are transferred from the belt B4 to the belt B5.
Since there is a gap S while the banknotes 2 are being transferred, especially if the banknotes 2 are warped or the like, they may get stuck in this gap and become jammed. In addition, the banknotes 2 to be inserted
Since the number of sheets ranges from a few sheets to several dozen, such a sheet holding mechanism can reliably hold such a number of sheets, and prevents the sheets from curling when transferred to the return slot 4. It is necessary to tension the belt to prevent jamming even if there is some tension.

The purpose of the present invention is to provide a paper sheet holding mechanism that satisfies the above conditions.
a lever that supports a predetermined roller shaft of the first roller group and rotates while being locked to the first drive shaft, and a second roller group; It includes a frame that is locked to a shaft and rotates, and a spring that is stretched so as to increase the pressure contact force between the belts that clamp paper sheets by a predetermined rotation angle of the first drive shaft. It is characterized by what it did.

The present invention will be described in detail below with reference to the accompanying drawings. FIG. 3 is a side view of the paper sheet holding mechanism according to the present invention. Roller 2 on which belt B10 is stretched
1, 22, and 23, and a shaft 24 fixed to this roller 23 is supported by a lever 25 rotated by a drive shaft 40a. As shown in FIG. 4a in the direction of arrow G, the lever 25 is rotatably attached to the drive shaft 40a and is locked by a claw 40b fixed to the drive shaft 40a and a torsion spring 26. Further, a lever 27 is fixed to the drive shaft 40a, and a spring 28 is attached to the fixing portion 27 as shown in the J arrow view in FIG. 4c.
It is stretched from 9. Therefore, when the drive shaft 40a rotates at an angle θ ₁ , the belt B10 is moved as shown by the chain line. On the other hand, the opposing belt B3 is stretched by rollers 31 and 32, and the frame 3
3, and the frame 33 is mounted on the lever 25 mentioned above.
Similarly, as shown in FIG. 4b in the direction of arrow H, the drive shaft 4 is
It is locked at 0g. Gear 4 on drive shaft 40g
0f is fixed, and rotational force is transmitted via a gear 40c fixed to the drive shaft 40a and gears 40d and 40e. Therefore, in conjunction with the rotation of the drive shaft 40a through an angle of θ ₁ , the frame 33 is rotated through an angle of θ ₂ , and the belt B3 is rotated as shown by the chain line. Therefore, the bill 2 is held between the belts B10 and B3. Figure 5 shows belt B1 when it is clamped.
FIG. 3 is a side view showing a state where 0 and B3 are in contact with each other. When the drive shaft 40a rotates through an angle θ ₁ , the drive shaft 40g also rotates through an angle θ ₁ , but a stopper 35 is provided to stop the rotation of the frame 33 at a predetermined position. 35 stops the frame 33 at an angle θ ₂ . Therefore, the torsion spring 3 is placed between the frame 33 and the claw 40h.
The angle θ ₃ is created by the deflection of the angle θ 3 . Furthermore, since the rotation angle of the lever 25 actually varies depending on the number of banknotes 2 held, the thickness of the banknote 2 is absorbed by the deflection of the torsion spring 26 shown at angle θ ₅ . ing.
Transfer after clamping is performed in the same manner as described above, but since there is no gap S as in the conventional case, jamming can be prevented from occurring. FIG. 6 is a graph showing the rotational force of the drive shaft 40a. Drive shaft 40a at a predetermined angle θ ₁
When rotated, torsion springs 34 and 26
The reaction force increases as the rotation angle θ increases, as shown by the dotted line a. On the other hand, when the spring 28 passes through the rotation angle θ ₅ as shown in FIG. Therefore, the rotational force of the drive shaft 40a that is actually required is the value shown by the chain line c. By doing so, the rotational force of the drive shaft 40a by the motor is reduced.

As explained above, in the present invention, the claws 40 are attached to the drive shafts 40a and 40g, which rotate in opposite directions.
b, 40h and the torsion springs 26, 34 to lock the lever 25 and the frame 33, and the lever 25 holds the belt B10.
A belt B3 is moved by a frame 33 to sandwich paper sheets. As a result, it is possible to stably press and transfer sheets even when the number of sheets fed varies, and the drive shaft 40a
This has the advantage of reducing the load on the motor that provides the rotational force.

[Brief explanation of the drawing]

Figure 1 is a side view showing the outline of the automatic teller machine, Figure 2
The figure is a side view of a conventional paper sheet holding mechanism, FIG. 3 is a side view of a paper sheet holding mechanism according to the present invention, and FIG.
is a view in the direction of the G arrow, b is a view in the direction of the H arrow, c is a view in the direction of the J arrow, 5th
The figure is a partial view of the state in which the belt is in contact, and FIG. 6 is a graph showing the rotational force. In the figure, 21, 22, 23, 31, 32
is a roller, 24 is a shaft, 25 and 27 are levers, 2
6 and 34 are torsion springs, 33 is a frame, 40a and 40g are drive shafts, 40b and 40h are claws, 40c, 40d and 40e are gears, 28 is a spring, and 2 is a bill.

Claims (1)

[Scope of utility model registration request] The first and second belts are provided with first and second belts that are arranged to face each other, and a plurality of first and second roller groups that stretch the first and second belts, respectively. In a paper sheet holding mechanism that pinches and transfers paper sheets, the first drive shaft supports first and second drive shafts whose rotating directions are different from each other, the first roller group and a predetermined roller shaft, and the first drive shaft supports the first roller group and a predetermined roller shaft. a lever that is locked to the shaft and rotates; a frame that carries the second roller group and that is locked to the second drive shaft and rotates;
1. A paper sheet holding mechanism characterized by comprising: a spring means tensioned so as to increase the pressure contact force between the belts that clamp the paper sheets by a predetermined rotation angle of the drive shaft.