JP4415060B2 - Paper sheet feeding mechanism - Google Patents

Description

  The present invention relates to a paper sheet feeding mechanism, for example, a mechanism for automatically feeding stacked banknotes used in an automatic cash transaction apparatus (referred to as ATM) used in a financial institution.

  ATM is equipped with the banknote handling mechanism for depositing / withdrawing a banknote with respect to a user. This mechanism releases a banknote to be withdrawn to a user or inserts a banknote into a banknote deposit / withdrawal port for feeding out one by one, a banknote discriminating unit for discriminating a deposited or withdrawn banknote, and a deposited banknote once A temporary storage unit for storing, a reject storage for storing rejected banknotes that do not reach a predetermined standard in the banknote discriminating unit, a recycle storage for storing and storing deposited banknotes, and feeding them out as withdrawal banknotes, and connection to the above parts And has a banknote transport path for transporting banknotes.

  Recently, this type of banknote handling mechanism has been adopted in foreign ATMs, and it is required not only to handle foreign banknotes of different sizes but also to be installed on the outer wall in accordance with the operation of ATMs. In particular, when an ATM is installed on the outer wall, the banknote deposit / withdrawal port for delivering banknotes to the user is used to horizontally insert banknotes from a thin slot-shaped mouth in order to prevent entry of rain, dust, etc. from the outside. It is desirable to employ a presenter mechanism that takes in and out.

  However, in the paper sheet feeding mechanism arranged horizontally, banknotes having different lengths in the feeding direction may be irregularly stacked. For example, when a banknote stacked on the top (hereinafter referred to as the top banknote) is smaller than a banknote stacked on the second sheet (hereinafter referred to as a second banknote) and is stacked rearward in the feeding direction, the pick roller However, when the uppermost banknote is fed to the feeding portion, there is a situation where the pick roller cannot be separated by the feed roller without feeding the uppermost banknote to the feeding portion by one rotation of the pick roller. In addition, because the uppermost banknote and the second stacked banknote are simultaneously fed to the feeding section by the feeding force of the pick roller, the second stacked banknote first enters the feeding section, and then the uppermost banknote enters, There is a possibility that two stacked banknotes will be fed out simultaneously.

  As a technique for solving this type of problem, for example, Japanese Patent Laid-Open No. 2002-347961 (Patent Document 1) discloses a radial member having flexibility behind the pick roller shaft in the feeding direction separately from the pick roller shaft. The circumferential surface that is sufficiently low in friction with respect to the feed roller feed rotation phase is positioned opposite the metal stopper roller and the stopper roller so that banknotes are not drawn outside the feed rotation phase arranged on the feed roller shaft. A gate roller is disposed on the left and right sides of the leading edge of the banknote by preliminarily feeding only the uppermost banknote to the feeding section by a flexible radial member and abutting the leading edge of the banknote against the peripheral surface of the stopper roller. A banknote payout mechanism is disclosed in which the uppermost banknotes first enter the payout section after being aligned, and only the uppermost banknotes are reliably separated.

Japanese Patent Laid-Open No. 2002-347961

However, according to the bill feeding mechanism according to the above-described prior art, a rotating shaft with a flexible radial member attached behind the pick roller shaft in the feeding direction is arranged separately from the pick roller shaft. Preliminary feeding is performed with a radial member having flexibility, the sheet is abutted against the stopper roller, the left and right portions of the leading edge of the paper sheet are aligned, and then fed out at the feeding phase portion of the feed roller. Therefore, the preliminarily fed paper sheets are always subjected to a force in the feeding direction by a flexible radial member until being fed by the feeding rotation phase portion of the feed roller. If a paper sheet with low rigidity or a paper sheet with folds is preliminarily fed, the paper sheet may buckle between the flexible radial member and the stopper roller, which may lead to abnormal feeding.
In order to solve this problem, if a flexible radial member is disposed as close to the stopper roller as possible, the pick roller or the pick roller shaft interferes with the flexible radial member and wears. Occurs.

  The object of the present invention is to feed out the paper sheets with low rigidity and folded folds one by one from the stacked uppermost paper sheets with the inclination of the left and right ends aligned one by one. It is to provide a paper sheet feeding mechanism capable of performing the above.

In the paper sheet feeding mechanism according to the present invention, a part of the circumference for feeding the paper sheets one by one by rotation in the feeding mechanism of the stacked paper sheets is more frictional than the other circumferential parts. And a feed roller formed with a high friction portion, a gate roller disposed opposite to the feed roller and preventing the feeding of paper sheets other than the paper sheets fed out in contact with the feed roller. A pick roller formed by a high friction portion in which a part of the circumference has a frictional force larger than that of the other circumferential part, and feeds the paper sheet between the feed roller and the gate roller while being in contact with the paper sheet. A pressing plate for supporting the deposited paper sheets and pressing the paper sheets against the pick roller, and an axis of the pick roller, opposite to the location of the high friction portion of the pick roller Placed on the side And a second radial member mounted coaxially with the feed roller, and a first radial member having a flexible blade extending radially in the direction opposite to the location of the high friction portion of A blade portion of the first radial member presses the paper sheet to preliminarily feed the paper sheet between the feed roller and the gate roller; Two radial members draw the preliminarily fed paper sheets between the pick roller and the feed roller.

According to the present invention, flexibility is provided by disposing a high-friction portion that feeds paper sheets to the pick roller and a radial member having flexibility to pre-feed the paper sheets at a position opposite to the high-friction portion. The distance between the radial member and the stopper roller in the sheet feeding direction can be shortened.
Further, the force applied to the paper sheet by the flexible radial member arranged on the feed roller shaft is a force in the pulling direction to the paper sheet feeding portion, and does not buckle the paper sheet. For this reason, since the preliminary feed force of the flexible radial member arranged on the pick roller can be divided and minimized by the flexible radial member preliminary feed force arranged on the feed roller shaft, The flexible radial member placed on the pick roller is a stopper roller and a gate facing it without buckling of the paper sheets even when pre-feeding paper sheets with low rigidity or creases. A flexible radial member disposed on the feed roller shaft abuts the paper sheet against the roller section, and draws the paper sheet toward the stopper roller so that the left and right ends of the paper sheet are aligned and fed out. Can do.

The side view which shows the paper sheet feeding mechanism in one Example. The front view which shows the paper sheet feeding mechanism in one Example. The arrow view seen from the A direction of FIG. The figure with which it uses for operation | movement description of the banknote feeding mechanism in one Example. The figure with which it uses for operation | movement description of the banknote feeding mechanism in one Example. The figure with which it uses for operation | movement description of the banknote feeding mechanism in one Example. The figure with which it uses for operation | movement description of the banknote feeding mechanism in one Example.

An embodiment of the present invention will be described below with reference to the drawings.
The bill feeding mechanism in one embodiment is applied to an ATM bill handling mechanism. Deposited banknotes (hereinafter simply referred to as “deposited banknotes”) deposited by the user into the deposit / withdrawal port unit are fed out one by one by this bill feeding mechanism and conveyed to an internal mechanism.
FIG. 1 is a side view of a bill feeding mechanism according to an embodiment, FIG. 2 is a front view thereof, and FIG. 3 is an arrow view from one direction in FIG.

The banknote feeding mechanism includes a feed roller 11 for feeding the stacked banknotes P one by one from the top by rotation, and a gate roller for preventing feeding of banknotes other than being fed by the feed roller 11 so as to face the feed roller 11. 12, a pick roller 13 for feeding banknotes to a banknote feeding portion composed of a feed roller 11 and a gate roller 12, a push plate 14 for supporting the stacked banknotes P and pressing the stacked banknotes P against the pick roller 13, and stacked banknotes A separation guide 15 for restricting the movement of P in the transport direction is provided.

  The pick roller 13 is fixed to the pick roller shaft 139 and is supported by an operating component 17 that can rotate around a feed roller shaft 119 that is pressed by the spring 16 in the direction of the stacked bills P with a certain force. The operating component 17 is related to the press detection sensor 18, and the operating component 17 is driven by a signal from the pressing plate detection sensor 18 to move and control the pressing plate 14 so as to press the stacked banknotes P against the pick roller 13 with a constant force. .

  A feed rubber portion 111 is arranged on a part of the circumference of the feed roller 11, and the other circumferential portion is made of a metal (for example, aluminum) or resin that has a sufficiently low friction with respect to the feed rubber portion 111. Yes. A pick rubber portion 131 is disposed on a part of the circumference of the pick roller 13, and a pick rubber portion 131 is adjacent to the flexible radial member 132 and the pick rubber portion 131 at a position opposite to the pick rubber portion 131. Arc portions 1331 and 1332 which are made of a metal or resin (for example, POM) having a sufficiently low friction with respect to the stacked banknotes P are arranged.

  As shown in FIG. 2, the feed roller shaft 119 is provided with two feed rollers 11 and stopper rollers 19 having the same diameter as the feed roller 11 on both outer sides thereof. The stopper roller 19 includes a high friction portion (for example, rubber material) 191 at a position that is in phase with the feed rubber portion 111 of the feed roller 11 in the rotation direction, and the other circumferential portions are the feed rubber portion 111 and the pick rubber portion. 131 and the flexible radial member 132 are made of metal (for example, aluminum) having sufficiently low friction.

  In addition, one flexible radial member 112 is disposed at the center of the feed roller shaft 119. Further, a gate roller 12 is disposed at a position facing the stopper roller 19 to prevent the bills from being fed out other than the feed roller 11. Two pick rollers 13 are arranged on the pick roller shaft 139, and the pick rollers 13 are arranged at the same position or inside in the axial direction with respect to the stopper roller 19.

  The radial member 112 disposed on the feed roller shaft 119 has a diameter larger than that of the feed roller, and the radial member 132 disposed on the pick roller 13 has the smallest banknote accumulated at any position of the banknote stacking unit 310. Even in this case, the diameter can be pressed by the radial member 132. Thereby, even if the smallest banknote is stacked at any position of the banknote stacking section 310, it can be preliminarily fed to the feeding section. In addition, a stopper 171 for restricting the bill side lower limit position of the pick roller 13 is disposed at a position where it abuts against the operating component 17 so that the stacked bill P is not pressed at a rotational phase other than the pick rubber portion 131.

  Thereby, the feeding force of the radial members 112 and 132 can be appropriately applied to the banknote, and the preliminary feeding of the banknote and the right / left inclination correction of the banknote front end portion can be easily performed. In addition, the portions other than the feed rubber portion 111 and the pick rubber portion 131 which are the bill feeding phases of the feed roller 11 and the pick roller 13 have a low friction structure so that the bills are not fed out by the preliminary feeding force of the radial members 112 and 132. It has a configuration. Further, the radial member 112 arranged at the center of the feed roller shaft 119 and the radial member 132 arranged on the pick roller 13 are formed by integrating thin and thin blades 1121 or 1321 made of a rubber material in the circumferential radial direction. A plurality of sheets are formed, rotated while being in contact with the upper surface of the stacked banknote P, and have a function of feeding the uppermost banknote of the stacked banknote P by the frictional force between the surface of the blade 1121 or 1321 and the stacked banknote P. The feed roller shaft 119 and the pick roller shaft 139 are connected to each other by a timing belt or gear (not shown), and can be rotated synchronously by a drive motor (not shown). Adjustments are made by pulleys and gears.

  In the above embodiment, two feed rollers 11, two pick rollers 13, and two stopper rollers 19 are arranged, and one flexible radial member 112 arranged on the feed roller shaft is arranged. Although the example has been described, the number of parts arranged can be changed according to the type and size of the paper sheet to be handled. Thereby, the feeding mechanism of the present embodiment can be widely used.

Next, the operation of the bill feeding mechanism will be described with reference to FIGS.
4 to 7 show an operation in which banknotes are fed one by one from a plurality of stacked banknotes P by the banknote feeding mechanism.

  FIG. 4 shows an initial state in which a plurality of stacked banknotes P are set in the banknote stacking unit 310. The leading edges of the plurality of stacked banknotes P are not aligned, and the leading edges of the banknotes P1 stacked at the top (hereinafter simply referred to as the top banknote) and the second banknote P2 are shifted by t. In order to press the pick roller 13 against the stacked banknote P from this state, the pressing plate 14 is raised in the direction of the arrow X, and the pressing plate position 141 that is the appropriate pressing position is determined by the signal of the pressing detection sensor 18. At this time, the phase of the pick roller 13 is performed so that the arc portion 1331 is on the stacked banknote side. When the feed roller 11 and the pick roller 13 are rotated in the arrow Y direction from this state, the feeding of banknotes is started.

  When the feeding of the banknotes is started, the pick roller 13 pressed against the stacked banknotes by the operating component 17 and the spring 16 as shown in FIG. A stopper 171 for regulating the lower limit position on the side abuts against the moving part 17. In this state, the uppermost banknote P1 is preliminarily fed to the feeding portion side (arrow Z direction) by the radial member 132 arranged on the pick roller 13. At this time, the radial member 112 arranged at the center of the feed roller shaft 119 first tries to send the second bill P2 to the bill feeding portion, but the radial members 112 and 132 are fed with the feed rubber portion 111, The low friction part other than the pick rubber part 131 and the high friction part 191 of the stopper roller has a weak pre-feeding force that does not feed out, so it is disposed at a position opposite to the low friction part other than the feeding phase of the stopper roller 19. It stops in a state where it hits the gate roller section 12.

  Thereafter, the uppermost banknote P <b> 1 is moved in the feeding direction Z by the radial member 132 arranged on the pick roller 13 and the radial member 112 arranged at the center of the feed roller shaft 119, and hits the stopper roller 19. Further, the uppermost banknote P1 that has struck the stopper roller 19 receives a force in the pulling direction of the radial member 112 arranged on the feed roller shaft 119 to the banknote feeding section, and does not buckle the uppermost banknote P1. By pulling it to the side, the inclination of the left and right parts of the leading edge of the paper sheet can be aligned.

After that, as shown in FIG. 6, the arc portion 1332 of the pick roller 13 contacts and presses the stacked banknote P. Thereafter, as shown in FIG. 7, only the uppermost banknote P <b> 1 is fed and fed out by the feed rubber part 111 of the feed roller 11 and the pick rubber part 131 of the pick roller 13. The fed uppermost banknote P1 is conveyed downstream by a roller (not shown).
With the above operation, banknotes stacked in an irregular state can be fed out one by one while correcting the inclination.

  By adopting the banknote feeding mechanism described above in, for example, an ATM installed on the outer wall, in a presenter system in which banknotes are inserted and removed horizontally from a thin slot-shaped mouth suitable for it, foreign banknotes with different banking dimensions in the feeding direction are not acceptable. Even when they are stacked according to the rules, they can be fed one by one from the uppermost banknote of the stacked banknote without buckling or damaging the banknote. The present invention can be applied not only to the ATM bill handling mechanism but also to a paper feeding mechanism of a device that handles paper such as a copying machine or a printer.

11: Feed roller, 119: Feed roller shaft, 111: Feed rubber portion, 112: Flexible radial member attached to the feed roller shaft, 12: Gate roller, 13: Pick roller, 139: Pick roller shaft, 131: Pick rubber part, 1311: Pick roller feed start position, 132: Radial member, 1331: Arc part, 1332: Arc part, 14: Push plate, 141: Push plate position as appropriate push position, 142: Press release 15: separation guide, 16: spring, 17: working part, 171: stopper, 18: pressure detection sensor, 19: stopper roller, 191: high friction part, 310: paper sheet stacking part, 1121, 1321: blades, P: stacked banknotes, P1: uppermost paper sheets, P2: second paper sheets

Claims (7)

Feed roller formed by a high friction part in which a part of the circumference has a larger frictional force than the other circumferential part for feeding the paper sheets one by one by rotation in the delivery mechanism of the accumulated paper sheets A gate roller disposed opposite to the feed roller to prevent paper sheets other than paper sheets fed out in contact with the feed roller, and the paper while being in contact with the accumulated paper sheets A pick roller that feeds leaves between the feed roller and the gate roller, a part of the circumference formed of a high friction part having a frictional force greater than that of the other circumferential parts, and supports the stacked paper sheets And a pressing plate for pressing the paper sheets against the pick roller, and a shaft of the pick roller, which is disposed at a position opposite to the location of the high friction portion of the pick roller, Opposite to the place of high friction part Has a first radial member having a blade portion having a flexibility stretching out radially, and a second radial member mounted on the feed roller coaxially to,
The blades of the first radial member press-contact the paper sheets to preliminarily feed the paper sheets between the feed roller and the gate roller, and the second radial members are The paper sheet feeding mechanism , wherein the paper sheet that has been preliminarily fed is drawn between the pick roller and the feed roller . 2. The paper sheet feeding mechanism according to claim 1, further comprising a stopper portion for regulating a position of the pick roller on which the pick roller is deposited. 3. The paper sheet feeding mechanism according to claim 1, wherein the high friction portion is disposed between the high friction portion of the pick roller and the first radial member and adjacent to the high friction portion. A paper sheet feeding mechanism, characterized in that an arc portion having sufficiently low friction is arranged so as to come into contact with paper sheets. The paper sheet feeding mechanism according to any one of claims 1 to 3, wherein a stopper member for preventing the feeding of the paper sheet fed by the first radial member is provided with the feed roller and the feed roller. A paper sheet feeding mechanism, which is a paper sheet feeding portion on which a gate roller is disposed, and is disposed on both outer sides of the feed roller in an axial direction perpendicular to the feeding direction of the paper sheet. 5. The paper sheet feeding mechanism according to claim 4, wherein the stopper member is coaxial with the feed roller and has a high friction with a part of the circumference on both outer sides of the feed roller and a frictional force greater than that of the other circumferential part. The stopper roller is arranged at a position where the high friction portion of the stopper roller and the high friction portion of the feed roller are in the same phase in the rotation direction, and further at a position facing the stopper roller. Is a paper sheet feeding mechanism comprising a gate roller for preventing the feeding of paper sheets other than the paper sheets fed out in contact with the feed roller. 6. The paper sheet feeding mechanism according to claim 5, wherein the pick roller is disposed at a position that is the same or inside in an axial direction perpendicular to the feeding direction with respect to the stopper roller. 6. The paper sheet feeding mechanism according to claim 4, wherein the second radial member is disposed inside the stopper roller in an axial direction perpendicular to the feeding direction.

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