JPH0542987Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention relates to a paper sheet feeding device that feeds paper sheets such as banknotes, which are handled by automatic teller machines, for example. The present invention relates to a paper sheet feeding device having a high performance feeding structure.

(B) Conventional technology Conventionally, as a paper sheet feeding device, the paper sheets stacked and stored in a storage box are urged against an auxiliary feeding roller facing the front side of the paper sheets, and this auxiliary feeding roller There is a device in which a friction member is attached to a part of the circumferential surface of a feeding roller placed on the feeding opening side, and one sheet of paper is fed out by controlling one rotation of these rollers. Publication No. 56-65733).

In order to perform high-speed feeding of paper sheets by controlling one revolution of the feeding roller, both feeding rollers must be rotated at high speed. Since the rate increases, there is a problem that feeding defects occur.Also, when the feeding is stopped (when the feeding roller is controlled to stop), the inertia is high, so the rate at which the next paper sheet protrudes toward the feeding roller side is also high. As a result, it has been difficult to feed out at a high enough speed to be useful, and there has been a limit to high-speed feeding.

(c) Problems to be solved by the invention This invention aims to reduce the slip rate of the feeding roller against paper sheets, easily control the stoppage of the feeding roller, and produce paper sheets that can be fed at high speed and have high utility value. The purpose is to provide a feeding device for.

(d) Means for solving the problem This invention consists of a storage unit that stores paper sheets in a stacked manner, and includes a means for biasing and transferring the paper sheets in one direction in the stacking direction, and a part of the surrounding surface. an auxiliary feed-out roller that is provided with a feed-out member for single-sheet feed and comes into contact with the stored paper sheets, and whose circumferential length is an integral multiple of 2 or more of the auxiliary feed-out roller and whose circumferential speed is the same as that of the auxiliary feed-out roller; and a feed-out roller that is set identically and abuts against the stored paper sheets, and both rollers are arranged opposite to each other in close proximity to the stored paper sheets in the storage section on opposite sides of the biasing means. A feeding member is disposed around the circumferential surface of the feeding roller at an interval approximately the circumferential length of the auxiliary feeding roller, and the feeding member of the auxiliary feeding roller and the feeding member of the feeding roller substantially simultaneously release the stored paper. The paper sheet feeding device is characterized in that the feeding roller and the auxiliary feeding roller are arranged so as to come into contact with the leaves.

(e) Effects of the invention According to this invention, a feeding roller and an auxiliary feeding roller that feed and rotate paper sheets at the same circumferential speed are provided at the large diameter and small diameter, so that the feeding roller on the large diameter side is Since the curvature is larger than that of the auxiliary feed roller on the small diameter side, a larger frictional force acts, resulting in a stable feeding action without slipping.Furthermore, the feed roller on the large diameter side has a large diameter, so it can rotate at low speeds but at high speeds. Because it is possible to obtain the peripheral speed of feeding,
Even if this stop control of the feed roller is executed, immediate stop control can be performed, and the inertia can prevent paper sheets from being taken out, and as a result, high-speed feed with high utility value can be executed.

Furthermore, since a plurality of feeding members are disposed around the feeding roller, the feeding rate is high, the number of sheets fed out per unit time is increased, and the feeding ability can be improved.

(F) Embodiment of the invention An embodiment of the invention will be described below in detail based on the drawings.

The drawings show a banknote feeding device, and in FIGS. 1 and 2, a storage section 12 for banknotes 11 is arranged such that the banknotes 11 are piled up in a horizontally elongated state and are aligned on a bottom plate 14 by leaning against a receiving plate 13. Store and catch plate 13
A spring (not shown) urges and transfers the bill 11 toward the payout side.

On the feeding side of the storage section 12 described above, a small-diameter auxiliary feeding roller 15 is provided in the upper part, and a large-diameter feeding roller 16 is provided in the lower part. The banknotes 11 are fed out from the storage section 12 by the feeding action of both rollers 15 and 16 at the same circumferential speed.

The above-mentioned auxiliary feed-out roller 15 has a feed-out member 17 made of a rubber material or the like having a high coefficient of friction around a part of its outer peripheral surface, and is set so that one rotation of this roller 15 feeds out one bill 11. .

Further, the feeding roller 16 has a circumferential length approximately twice that of the above-mentioned auxiliary feeding roller 15, and a feeding member having a high friction coefficient such as a rubber material is attached to the outer peripheral surface of the feeding roller 16.
8 and 18 are provided on the periphery, and these feeding members
8 and 18 are provided around the periphery so as to correspond to the feed-out member 17 of the auxiliary feed-out roller 15, respectively, so as to be able to feed out synchronously.

Furthermore, an uneven roller surface 16c is formed on the outer peripheral surface of the roller by alternately forming circumferential grooves 16a and protrusions 16b, and this uneven roller surface 16c does not contact the uneven roller surface of the friction roller described later. handle.

The feeding rollers 16 are mounted on a pair of left and right rotating shafts 19 in a manner corresponding to the feeding width of the banknotes 11, and the rotating shafts 19 are rotationally driven by an appropriate driving means via a power transmission gear 20. .

Further, a belt 2 is stretched between a driving pulley 21 which is pivotally attached to the rotating shaft 19 and a driven pulley 23 which is pivotally attached to the rotating shaft 22 of the auxiliary feeding roller 15.
The power is transmitted to the auxiliary feed roller 15 via 4.

At this time, both rollers 15 and 16 are placed as close as possible. This reliably reduces the bending phenomenon of the banknote 11 due to a slight feeding error between the rollers 15 and 16 during feeding.

A friction roller 25 for controlling single-sheet feed-out is provided opposite to the surface of the feed-out roller 16 on the downstream side facing the feed-out side.

This friction roller 25 is similar to the above-mentioned feeding roller 1.
Similarly to 6, a feeding member 26 having a high friction coefficient such as a rubber material is provided on the outer circumferential surface of the roller, and an uneven roller surface 25c is formed on the outer circumferential surface of the roller by alternately forming circumferential grooves 25a and protrusions 25b. are doing.

This uneven roller surface 25c is made to correspond to the uneven roller surface 16c of the above-mentioned feeding roller 16, so that the protrusions 16b, 25b... side between them are not in contact with the corresponding circumferential groove portion 16a, 25a... side. Both rollers 16 and 25 are installed facing each other. Then, the bill 1 is fed out from the storage section 12 between the corresponding surfaces where the uneven roller surfaces 16c and 25c correspond to the unevenness.
1 is allowed to pass through, and control for dispensing one bill 11 is performed.

This friction roller 25 is connected to a roller shaft 27.
is biased toward the feeding roller 16 side, so that the friction roller 25 is urged against the feeding roller 16 side in a non-contact manner.

Furthermore, this friction roller 25 is equipped with a one-way clutch that restricts rotation in the feeding direction and allows rotation in the opposite direction, and the rotation regulating action of this one-way clutch prevents the banknotes 11 from being emptied. To prevent double sheet dispensing and perform stable single sheet dispensing control. In the figure, 28 is a conveyance roller, 29 is a feeding guide plate, 30 is an electromagnetic clutch, and 31 is a support frame.

The bill dispensing device configured as described above rotates based on a dispensing signal when the bill 11 located at the front of the storage section 12 is in biased contact with the auxiliary dispensing roller 15 and the dispensing roller 16. When the shaft 19 is driven, the auxiliary feed roller 15 and the feed roller 16 rotate in synchronization at the same circumferential speed in the pay-out direction, whereby the banknote 11 is fed out by the feed-out force of both rollers 15 and 16. The sheets are pulled out in the same direction, held between the feeding roller 16 and the opposing friction roller 25, and fed out one by one to the subsequent stage.

At this time, since the feeding roller 16 has a larger diameter than the auxiliary feeding roller 15, the curvature is large, and the bill 1
A reliable frictional force against the rollers 15 and 1 works, and a stable feeding force without slippage is obtained.
Since the banknotes 6 are close to each other, the banknotes 11 are fed out without bending.

Further, even if high-speed feeding is performed in an attempt to improve the processing speed, it can be handled with a large-diameter feeding roller suitable for high-speed feeding, and the limit will not easily occur.

Furthermore, in this case, each feeding member 17, 18,
18 is partially disposed in a part of the circumferential direction, this feeding member does not become heated intensively during high-speed feeding.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention, with FIG. 1 being a side view of a main part of a banknote dispensing unit, and FIG. 2 being a vertical sectional front view of a main part showing a banknote dispensing device. 11... Bill, 12... Storage section, 15... Auxiliary feeding roller, 16... Feeding roller, 17,1
8... Feeding member.

Claims (1)

[Scope of Claim for Utility Model Registration] A storage section that stores paper sheets in a stacked manner and is equipped with a means for biasing and transferring the paper sheets in one direction in the stacking direction, and a section on a part of the periphery for taking out one sheet. an auxiliary feeding roller that has a feeding member around it and comes into contact with the stored paper sheets;
and a feed-out roller having a peripheral length set to an integral multiple of 2 or more of the auxiliary feed-out roller and a circumferential speed equal to that of the auxiliary feed-out roller, and which contacts the stored paper sheets, and both rollers are connected to the stored paper sheets. The rollers are arranged in close proximity to each other on the opposite side of the urging means for the paper sheets stored in the section, and a feeding member is disposed around the circumferential surface of the feeding roller at an interval approximately the circumferential length of the auxiliary feeding roller. and the feeding roller and the auxiliary feeding roller are arranged so that the feeding member of the auxiliary feeding roller and the feeding member of the feeding roller come into contact with the stored paper sheets substantially simultaneously. Device.