WO2012132035A1

WO2012132035A1 - Impeller, device for collecting leaves of paper, and method for producing impeller

Info

Publication number: WO2012132035A1
Application number: PCT/JP2011/065794
Authority: WO
Inventors: 弘次佐竹; 淳 ▲高▼山; 伸治中島
Original assignee: グローリー株式会社
Priority date: 2011-03-30
Filing date: 2011-07-11
Publication date: 2012-10-04
Also published as: EP2692675A1; EP2692675B1; CN103562105A; EP2692675A4; CN103562105B

Abstract

The invention provides an impeller (52) wherein a protrusion (57) is provided on the inner surface and/or outer surface of blades (56). The protrusion (57) on a first blade (56) of a pair of blades (56) which are adjacent in the circumferential direction of a base part (54), and a second blade (56) of said pair are overlapping, when seen from the axial direction of the base part (54), and the protrusion (57) of the first blade (56) and the second blade (56) are not in contact.

Description

Impeller, paper sheet stacking apparatus, and manufacturing method of impeller

The present invention relates to an impeller used when stacking paper sheets such as banknotes, a paper sheet stacking apparatus provided with the impeller, and a method of manufacturing the impeller, and more particularly to the original stiffness of the paper sheets. Impeller capable of suppressing paper sheets received by being held between a pair of blades with an appropriate holding force from being accidentally ejected between the pair of blades, regardless of the strength of the blade The present invention relates to a paper sheet stacking apparatus and an impeller manufacturing method.

Conventionally, in a paper sheet stacking apparatus in which paper sheets such as banknotes taken from the outside of the machine body are stacked in the machine body, an impeller is provided in the vicinity of the stacking unit in which the paper sheets are stacked. Are known. Such an impeller includes a cylindrical base portion and a plurality of blades provided to extend outward from the outer peripheral surface of the base portion and arranged at equal intervals in the circumferential direction of the base portion. Paper sheets are received between a pair of adjacent blades in the circumferential direction of the section. Further, when performing the stacking operation of the paper sheets, the impeller is always rotated, and the paper sheets sent to the stacking section from the outside of the stacking section are first paired adjacent to each other in the impeller. The paper sheets between the pair of blades in the impeller are then released from the impeller and accumulated in the accumulating unit. By providing such an impeller, the paper sheets can be stacked on the stacking unit in an aligned state.

By the way, in the impeller used conventionally, after a paper sheet is received between a pair of blades in the impeller, the paper sheet is not released from the impeller. In some cases, it may accidentally jump out from between a pair of blades. In order to prevent such a paper sheet popping out phenomenon, a mechanism for holding a paper sheet such as a leaf spring is provided at the tip of each blade of the impeller, and the paper sheet is placed between a pair of blades in the impeller. A method of holding the paper sheet with a leaf spring of each blade when received is used (for example, see Patent Documents 1 and 2).

However, when a paper sheet is received between a pair of blades in the impeller, the paper sheet is held by a leaf spring or the like of each blade. Depending on the strength of the paper sheet, the paper sheet May not be held securely. In other words, paper sheets that are too weak will bend immediately and lose the urging force of a leaf spring provided at the tip of each blade, so that the paper sheets do not enter between the blades and hold the paper sheets. There was a case that could not be done.

Japanese Patent No. 2574769 Japanese Utility Model Publication No. 52-1000079

The present invention has been made in consideration of such points, and when a paper sheet is received between a pair of blades, the paper sheet is stiffened to give the original stiffness of the paper sheet. Impeller capable of suppressing paper sheets received by being held between a pair of blades with an appropriate holding force from being accidentally ejected between the pair of blades, regardless of the strength of the blade An object of the present invention is to provide a paper sheet stacking apparatus including the impeller and a method of manufacturing the impeller.

The impeller according to the present invention includes a cylindrical base portion and a plurality of blades provided so as to extend outward from the outer peripheral surface of the base portion and arranged at equal intervals in the circumferential direction of the base portion. A plurality of blades that receive paper sheets between a pair of blades adjacent in the circumferential direction of the base body, and a protrusion is provided on at least one of the inner surface and the outer surface of each blade, and the base portion As for a pair of blades adjacent to each other in the circumferential direction, the protruding portion of one blade overlaps with the other blade as viewed from the axial direction of the base portion, and the protruding portion of one blade does not contact the other blade. It is characterized by that.

According to such an impeller, the projecting portion is provided on at least one of the inner surface or the outer surface of each blade, and one pair of blades adjacent in the circumferential direction of the base portion is viewed from the axial direction of the base portion. The protruding part of the other blade overlaps the other blade, and the protruding part of one blade and the other blade do not contact each other. For this reason, when the paper sheet sent to the impeller is received between a pair of adjacent blades, the paper sheet is curved by a protrusion provided on the inner surface or outer surface of each blade. Koshi comes to be attached. In this way, whether the paper sheet sent to the impeller is strong or weak, the paper sheet is securely held between the pair of blades. Regardless of the original stiffness of the paper, it is possible to prevent the paper sheets received by being held between the pair of blades by an appropriate holding force from accidentally jumping out between the pair of blades. It becomes like this.

In the impeller of the present invention, the pair of blades adjacent in the circumferential direction of the base portion may have a symmetrical shape.

Alternatively, the blades may have the same shape.

In the impeller of the present invention, each of the blades is provided with an opening or a notch, and the pair of blades adjacent to each other in the circumferential direction of the base body is viewed from the normal direction of the base body. The protruding portion of the other blade may be opposed to the opening or notch of the other blade.

In an impeller in which each blade has the same shape, a pair of blades adjacent in the circumferential direction of the base portion may be disposed at positions shifted from each other in the axial direction of the base portion.

In the impeller of the present invention, a concave portion into which the protruding portion of the adjacent blade enters may be provided on the surface of each blade where the protruding portion is not provided.

In this case, the protrusion may be provided on the inner surface of each blade, and the recess may be provided on the outer surface of each blade.

In the impeller of the present invention, the blades may be formed to be elastically deformable.

The impeller according to the present invention includes a cylindrical base portion and a plurality of blades provided so as to extend outward from the outer peripheral surface of the base portion and arranged at equal intervals in the circumferential direction of the base portion. A plurality of blades for receiving paper sheets between a pair of blades adjacent in the circumferential direction of the base body portion, and the pair of blades adjacent in the circumferential direction of the base body portion as viewed from the axial direction of the base body portion. A specific portion of one blade overlaps with the other blade, and the specific portion of one blade does not contact the other blade.

According to such an impeller, with respect to a pair of blades adjacent in the circumferential direction of the base body portion, a specific part of one blade and the other blade overlap each other when viewed from the axial direction of the base body portion. A specific part of the blade is not in contact with the other blade. For this reason, when the paper sheet sent to the impeller is received between a pair of adjacent blades, the paper sheet is curved by a specific part of one blade so as to be stiff. become. In this way, whether the paper sheet sent to the impeller is strong or weak, the paper sheet is securely held between the pair of blades. Regardless of the original strength of the sheet, the paper sheets received between the pair of blades are prevented from accidentally jumping out between the pair of blades.

In the impeller of the present invention, each blade may be integrated with the base portion.

Alternatively, each blade may be detachably attached to the outer peripheral surface of the base portion.

The paper sheet stacking apparatus of the present invention includes a stacking unit in which paper sheets are stacked and the above-described impeller provided in the stacking unit, and is sent to the stacking unit from the outside of the stacking unit. The paper sheets are first received between a pair of adjacent blades in the circumferential direction of the base portion of the impeller, and then the paper sheets between the pair of blades in the impeller are released from the impeller and It is characterized by being accumulated in the accumulation unit.

The impeller manufacturing method of the present invention is an impeller manufacturing method in which each blade is integrated with the base portion, and a step of preparing a pair of molds each having a cavity provided therein And a step of aligning the pair of molds, injecting the molding material into cavities in the pair of molds, and separating the pair of molds to produce an impeller generated from the molding material. And a step of obtaining.

In the impeller manufacturing method of the present invention, in the step of obtaining the impeller generated from the molding material, a pair of blades adjacent in the circumferential direction of the base portion have a symmetrical shape, and the blades A protrusion is provided on at least one of the inner surface and the outer surface of each of the blades, and each blade is provided with a notch. The pair of blades adjacent to each other in the circumferential direction of the substrate portion have a To obtain an impeller such that the protrusion of one blade and the other blade overlap with each other when viewed from the axial direction, and the protrusion of one blade does not contact the other blade. It may be.

According to the impeller of the present invention and the paper sheet stacking apparatus equipped with the impeller, regardless of the original stiffness of the paper sheet, it is held between the pair of blades with an appropriate holding force. It is possible to prevent the received paper sheets from accidentally jumping out between the pair of blades. Moreover, according to the manufacturing method of the impeller of this invention, such an impeller can be manufactured.

It is a perspective view which shows the external appearance of the banknote processing apparatus by one embodiment of this invention. It is a schematic block diagram which shows the schematic structure inside the banknote processing apparatus shown in FIG. FIG. 3 is a control block diagram of the banknote handling apparatus shown in FIGS. 1 and 2. It is a perspective view which shows the whole structure of the impeller type | mold accumulation mechanism in the banknote processing apparatus shown in FIG. It is a perspective view which shows the structure of one impeller in the impeller type | mold integration mechanism shown in FIG. (A) is the figure which looked at the 1st blade | wing provided in the impeller shown in FIG. 5 etc. from the normal line direction of the base | substrate part, (b) is this axial direction of a base | substrate part. It is the figure seen from. (A) is the figure which looked at the 2nd blade | wing provided in the impeller shown in FIG. 5 etc. from the normal line direction of the base | substrate part, (b) is an axial direction of a base | substrate part. It is the figure seen from. It is the figure which looked at the impeller shown in FIG. 5 etc. from the axial direction of the base | substrate part. It is the figure which looked at the impeller from the front which shows a state when a banknote is sent to a pair of impeller as shown in FIG. It is a perspective view which shows the other structure of the impeller provided in the banknote processing apparatus of this Embodiment. It is a perspective view which shows the structure of the blade | wing provided in the impeller shown in FIG. It is a perspective view which shows other structure of the impeller provided in the banknote processing apparatus of this Embodiment. It is a perspective view which shows the structure of the blade | wing provided in the impeller shown in FIG. It is a side view which shows the further another structure of the impeller provided in the banknote processing apparatus of this Embodiment. It is a perspective view which shows the structure of the blade | wing provided in the impeller shown in FIG. It is sectional drawing which shows the further another structure of the impeller provided in the banknote processing apparatus of this Embodiment. It is sectional drawing which shows the structure of the blade | wing provided in the impeller shown in FIG. It is a perspective view which shows the structure of the blade | wing provided in the impeller shown in FIG. 16, Comprising: (a) is a perspective view when a blade | wing is seen from the outer side, (b) is when a blade | wing is seen from the inner side FIG.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 thru | or FIG. 9 is a figure which shows the impeller which concerns on this Embodiment, and the banknote processing apparatus provided with this impeller. Among these, FIG. 1 is a perspective view which shows the external appearance of the banknote processing apparatus by this Embodiment, and FIG. 2 is a schematic block diagram which shows the schematic structure inside the banknote processing apparatus shown in FIG. FIG. 3 is a control block diagram of the banknote handling apparatus shown in FIGS. 1 and 2. 4 to 9 are diagrams showing the configuration of the impeller provided in the banknote handling apparatus shown in FIG.

As shown in FIGS. 1 and 2, the banknote handling apparatus 10 includes a housing 12, a placement unit (hopper) 14 on which a plurality of bills to be counted are placed in a stacked state, and a placement unit 14. Among the plurality of banknotes placed on the housing 12, the feeding section 16 for feeding the banknotes one by one into the housing 12, and the housing 12. And a transport unit 18 for transporting banknotes fed inside one by one. In addition, the transport unit 18 is provided with an identification counting unit 20 for identifying and counting the banknotes fed into the housing 12 by the feeding unit 16.

The feeding unit 16 includes a kicker roller 16a that abuts on the surface of one banknote in the lowermost layer among the plurality of banknotes placed in a stacked state on the placement unit 14, and a downstream side of the kicker roller 16a in the banknote feeding direction And a feed roller 16b that feeds the banknote kicked out by the kicker roller 16a to the inside of the housing 12. Further, a reverse roller 16c (gate roller) is provided facing the feed roller 16b, and a gate portion G is formed between the feed roller 16b and the reverse roller 16c. The banknotes kicked out by the kicker roller 16a pass through the gate part G and are fed out one by one to the transport part 18 in the housing 12. In addition, inside the housing 12, a feeding unit driving mechanism 17 (see FIG. 3) that drives the feeding unit 16 is provided.

The transport unit 18 is composed of a combination of a plurality of transport belts and rollers stretched around a plurality of transport rollers, and the transport belt circulates in a state where banknotes are sandwiched between the transport belts and the rollers. By moving, banknotes are conveyed along the conveyance path. In addition, a transport unit drive mechanism 19 (see FIG. 3) that drives the transport unit 18 is provided inside the housing 12.

Further, as described above, the transport unit 18 is provided with the identification counting unit 20 for identifying and counting the banknotes fed into the housing 12 by the feeding unit 16. More specifically, the identification counting unit 20 performs identification of banknotes, whether the banknotes are true or not, whether they are denominated, denominations, etc., whether or not a banknote conveyance abnormality has occurred, and counts banknotes. It has become.

As shown in FIG. 2, the conveyance unit 18 branches into two conveyance paths at a location downstream of the identification counting unit 20, and a stacking unit 30 is connected to the downstream end of one conveyance path. A reject unit 40 is connected to the downstream end of the other transport path. The banknotes identified and counted by the identification counting unit 20 are selectively sent to the stacking unit 30 or the rejecting unit 40. An opening is provided in the front surface (left surface in FIG. 2) of the stacking unit 30, and an operator can take out the banknotes stacked in the stacking unit 30 through this opening. An opening is also provided on the front surface of the reject unit 40, and the operator can take out the banknotes accumulated in the reject unit 40 through the opening.

As shown in FIG. 2, a branching portion 22 including a branching member and a driving portion (not shown) is provided at a location where the transporting portion 18 branches into two transport paths. The bills sent from the upstream side of the branching section 22 are selectively sent to one of the two branched transport paths.

In the stacking unit 30, an impeller-type stacking mechanism 50 is provided at a position on the back side of the housing 12 (a position on the right side in the stacking unit 30 in FIG. 2). The impeller accumulation mechanism 50 includes an impeller 52 and a driving unit (not shown). The impeller 52 is centered on a shaft 51 extending in a substantially horizontal direction orthogonal to the paper surface of FIG. It rotates in the counterclockwise direction in FIG. 2 (arrow direction in FIG. 2). The impeller 52 has a cylindrical base portion 54 and a plurality of blades 56 extending from the outer peripheral surface of the base portion 54 outward in the direction opposite to the rotation direction of the impeller 52 (clockwise direction in FIG. 2). And have. As shown in FIG. 2, these blades 56 are provided at equal intervals on the outer peripheral surface of the base portion 54, and a bill is received between a pair of blades 56 adjacent in the circumferential direction of the base portion 54. Yes.

The impeller 52 of the impeller-type stacking mechanism 50 is always rotated in the counterclockwise direction in FIG. 2 by the drive unit during the operation of the banknote handling apparatus 10. Bills are sent one by one from the section 18. The impeller 52 receives the banknote sent from the transport unit 18 between the two blades 56 and sends the banknote received between the blades 56 to the stacking unit 30. In this way, banknotes are sent one by one from the impeller 52 to the stacking unit 30, and a plurality of banknotes are stacked in the stacking unit 30 in an aligned state.

Details of the configuration of the impeller 52 in the impeller accumulation mechanism 50 will be described later.

As shown in FIGS. 1 and 2, the banknote handling apparatus 10 is provided with a shutter 34 for closing an opening provided on the front surface of the stacking unit 30. The opening is selectively closed. In addition, a shutter drive mechanism 35 (see FIG. 3) that drives the shutter 34 is provided inside the housing 12. The shutter 34 is retracted below the stacking unit 30 by the shutter driving mechanism 35 to open an opening of the stacking unit 30 (see a dotted line in FIG. 2), and a closing position to close the front opening of the stacking unit 30. (Refer to the solid line in FIG. 2). That is, when the shutter 34 is in the opening position as shown by the dotted line in FIG. 2, the operator can access the banknotes accumulated in the accumulation unit 30. On the other hand, when the shutter 34 is in the closed position as shown by the solid line in FIG. 2, the opening on the front surface of the stacking unit 30 is closed by the shutter 34, and the operator can access the banknotes stacked in the stacking unit 30. Disappear.

On the other hand, the reject unit 40 is not provided with a shutter that closes the front opening of the reject unit 40. As shown in FIGS. 1 and 2, the reject unit 40 is provided with a pair of left and right banknote alignment members 42, and each banknote alignment member 42 is manually moved from the position shown in FIG. (Ie, to the left in FIG. 2). For this reason, the banknotes sent from the transport unit 18 to the reject unit 40 are accumulated in the reject unit 40 in a state where the banknotes are aligned by the banknote alignment members 42. Moreover, the operator can take out banknotes from the reject unit 40 by tilting each banknote alignment member 42 to the front surface of the housing 12.

Further, as shown in FIG. 1, an operation display unit 62 is provided on the front surface of the housing 12. The operation display unit 62 includes a display unit 62a made of, for example, an LCD, and a plurality of operation keys 62b. On the display unit 62a, the processing status of banknotes by the banknote processing apparatus 10, more specifically, for example, information such as the number and total amount of banknotes counted by the identification counting unit 20 is displayed. ing. Further, when the operator presses the operation key 62b, various commands can be given to the control unit 60 described later.

As shown in FIG. 2, a control unit 60 for controlling each component of the banknote handling apparatus 10 is provided inside the housing 12. Details of the configuration of the control unit 60 will be described with reference to FIG. As shown in FIG. 3, the control unit 60 includes a feeding unit driving mechanism 17 that drives the feeding unit 16, a transport unit driving mechanism 19 that drives the transport unit 18, an identification counting unit 20, a branching unit 22, and an impeller. A type accumulation mechanism 50, a shutter drive mechanism 35 that drives the shutter 34, an operation display unit 62, and the like are connected to each other. And while the identification result and counting result of the banknote by the identification counting part 20 are sent to the control part 60, the control part 60 is the feeding part drive mechanism 17, the conveyance part drive mechanism 19, the branch part 22, the impeller-type accumulation mechanism 50, A command signal is sent to the shutter drive mechanism 35, the operation display unit 62, and the like to control these components.

Further, as shown in FIG. 3, a storage unit 64 is connected to the control unit 60. The storage unit 64 stores, for example, information on the processing status of banknotes by the banknote processing apparatus 10, more specifically, for example, the number of banknotes denominated by the identification counting unit 20 and the total amount. It is like that.

Next, the basic operation of the bill processing apparatus 10 having such a configuration will be described. In addition, operation | movement of the banknote processing apparatus 10 shown below is performed when the control part 60 controls each component of the banknote processing apparatus 10. FIG.

First, the operator places banknotes to be counted on the placement unit 14 in a stacked state. Thereafter, when the operator gives an instruction to start counting bills to the control unit 60 by pressing an operation key 62b (specifically, a “START / STOP” key) of the operation display unit 62, the placement unit The banknotes placed in a stacked state on 14 are fed out one by one from the banknote in the lowermost layer to the transport unit 18 in the housing 12 one by one. The banknotes fed out by the feeding unit 16 to the transport unit 18 in the housing 12 are transported by the transport unit 18.

And the banknote conveyed by the conveyance part 18 is identified and counted by the identification counting part 20, and the identification result of the banknote by the identification counting part 20 is sent to the control part 60. In the identification result of the banknote sent to the control unit 60, when the banknote is a predetermined banknote, the banknote is further transported by the transport unit 18 and sent to the stacking unit 30 by the branching unit 22. At this time, banknotes are sent one by one from the transport unit 18 to the impeller 52 of the impeller stacking mechanism 50, and the impeller 52 passes the banknotes sent from the transport unit 18 between the two blades 56. The banknotes received and received between the blades 56 are sent to the stacking unit 30. In this manner, banknotes can be stacked in the stacked state on the stacking unit 30 by the impeller-type stacking mechanism 50. On the other hand, in the identification result of the banknote sent to the control unit 60, when the banknote is not to be stacked in the stacking unit 30, the banknote is further transported by the transport unit 18 and rejected by the branching unit 22. 40.

Note that while the bill counting process is performed by the bill processing apparatus 10 as described above, the opening on the front surface of the stacking unit 30 is closed by the shutter 34 as shown by the solid line in FIG. Then, all the banknotes placed on the placement unit 14 are sent to the stacking unit 30 or the rejection unit 40, and when the bill counting process by the banknote processing apparatus 10 is completed, the shutter 34 is retracted as shown by the dotted line in FIG. The opening on the front surface of the stacking unit 30 is opened by moving to the position. In this way, the operator can take out banknotes from the stacking unit 30. Moreover, since the opening of the front surface of the rejection part 40 is always open, the operator can take out the banknotes from the rejection part 40 by tilting each banknote alignment member 42 to the front surface of the housing 12. .

Next, details of the configuration of the impeller 52 in the impeller type accumulation mechanism 50 will be described with reference to FIGS. FIG. 4 is a perspective view showing the entire configuration of the impeller type stacking mechanism 50 in the banknote processing apparatus 10 according to the present embodiment, and FIG. 5 is one impeller 52 in the impeller type stacking mechanism 50 shown in FIG. It is a perspective view which shows the structure. FIG. 6A is a view of the first blade 56a provided on the impeller 52 shown in FIG. 5 and the like, as viewed from the normal direction of the base portion 54, and FIG. FIG. 6 is a view of one blade 56a as viewed from the axial direction of a base portion 54. FIG. 7A is a view of the second blade 56b provided in the impeller 52 shown in FIG. 5 and the like, as viewed from the normal direction of the base portion 54, and FIG. It is the figure which looked at the 2 blade | wing 56b from the axial direction of the base | substrate part. 8 is a view of the impeller 52 shown in FIG. 5 or the like viewed from the axial direction of the base portion 54, and FIG. 9 is a view when a bill is sent to a pair of impellers 52 as shown in FIG. It is the figure which looked at the impeller 52 from the front surface which shows this state.

As shown in FIG. 4, the impeller type accumulation mechanism 50 includes a pair of left and right impellers 52, and these impellers 52 are pivotally supported by a single shaft 51. Here, the pair of left and right impellers 52 have the same shape. And the drive part (not shown) of the impeller type | mold integration mechanism 50 rotates the axis | shaft 51, and a pair of left and right impellers 52 rotate synchronously.

As shown in FIGS. 4 and 5, each impeller 52 includes a cylindrical base portion 54 and a plurality of outer peripheral surfaces of the base portion 54 that extend outward in the direction opposite to the rotation direction of the impeller 52. And blades 56. As shown in FIG. 2, these blades 56 are provided at equal intervals on the outer peripheral surface of the base portion 54, and a bill is received between a pair of blades 56 adjacent in the circumferential direction of the base portion 54. Yes. A bearing portion 53 is provided at the center of the base portion 54 so that the shaft 51 can be received by the bearing portion 53.

Here, as the blades 56 provided in the impeller 52, first blades 56 a as shown in FIG. 6 and second blades 56 b as shown in FIG. 7 are alternately provided along the circumferential direction of the base portion 54. It has been. That is, the first blade 56a and the second blade 56b are always adjacent to each other in the circumferential direction of the base portion 54. For this reason, the banknote sent to the impeller 52 from the conveyance part 18 is received between the 1st blade | wing 56a and the 2nd blade | wing 56b, and this received banknote is sent to the stacking part 30. Yes. Here, the first blade 56 a and the second blade 56 b may be integrated with the base portion 54, or the first blade 56 a and the second blade 56 b may be formed on the base portion 54, respectively. It may be detachably attached to the outer peripheral surface. Further, as shown in FIGS. 6A and 7A, the first blade 56a and the second blade 56b have a symmetrical shape when viewed from the normal direction of the base portion 54.

Further, in the pair of left and right impellers 52 as shown in FIG. 4, the angular positions at which the first blade 56a and the second blade 56b are respectively provided are completely the same. That is, as shown in FIG. 9, the first blade 56 a provided on one impeller 52 of the pair of left and right impellers 52 faces the first blade 56 a provided on the other impeller 52. The second blade 56 b provided in one impeller 52 is opposed to the second blade 56 b provided in the other impeller 52.

Note that the pair of left and right impellers 52 in the present embodiment is not limited to such a mode. For example, for the pair of left and right impellers 52, the angular position where the first blade 56a in one impeller 52 is provided is the same as the angular position where the second blade 56b in the other impeller 52 is provided, The angular position of the second impeller 52 where the second blade 56b is provided may be the same as the angular position of the other impeller 52 where the first blade 56a is provided. In this case, the first blade 56a provided in one impeller 52 of the pair of left and right impellers 52 is opposed to the second blade 56b provided in the other impeller 52. The second blade 56 b provided in the first impeller 52 comes to face the first blade 56 a provided in the other impeller 52.

Further, as shown in FIGS. 6 and 7, protrusions 57 are provided on the inner surfaces of the first blade 56a and the second blade 56b, respectively. The first blade 56a and the second blade 56b are each provided with a notch 58. Here, as shown in FIGS. 5 and 8, the pair of blades 56 adjacent to each other in the circumferential direction of the base portion 54 (that is, the first blade 56 a and the second blade 56 b) in the normal direction of the base portion 54. As seen from the above, the protrusion 57 of one blade faces the notch 58 of the other blade. Specifically, with respect to the adjacent first blade 56a and second blade 56b, the protruding portion 57 of the first blade 56a extends to the cutout portion 58 of the second blade 56b or the cutout portion 58. The protruding portion 57 of the second blade 56b extends to the notch 58 of the first blade 56a or extends through the notch 58. For this reason, the protrusion 57 of the first blade 56a does not contact the second blade 56b, and the protrusion 57 of the second blade 56b does not contact the first blade 56a.

In this way, as shown in FIG. 8, the adjacent first blade 56 a and second blade 56 b have the protrusion 57 of the first blade 56 a as the second blade 56 as viewed from the axial direction of the base portion 54. The protrusions 57 of the second blade 56b overlap the first blade 56a while overlapping the blade 56b. In addition, with respect to the adjacent first blade 56a and second blade 56b, the protrusion 57 of the first blade 56a is within the range of the cutout portion 58 of the second blade 56b when viewed from the normal direction of the base body 54. The protrusion 57 of the second blade 56b is positioned within the range of the notch 58 of the first blade 56a. For this reason, the protrusions 57 of the first blade 56a and the second blade 56b do not come into contact with the other blade.

In the impeller 52 according to the present embodiment, instead of the protrusions 57 being provided on the inner surfaces of the first blade 56a and the second blade 56b, the protrusion 57 is provided with the first blade 56a and the second blade 56b. It may be provided on the outer surface. When the protruding portion 57 is provided on the outer surface of the first blade 56a and the second blade 56b, the positional relationship between the protruding portion 57 and the notch portion 58 is reversed and protrudes from the base portion 54 side toward the tip. The part 57 and the cutout part 58 are formed in this order. Even in this case, with respect to the pair of blades 56 adjacent to each other in the circumferential direction of the base portion 54, the protruding portion 57 of one blade faces the notch portion 58 of the other blade as viewed from the normal direction of the base portion 54. It becomes like this.

Further, in the impeller 52 according to the present embodiment, an opening may be provided instead of the notch 58 in each of the first blade 56a and the second blade 56b. Even in this case, for the adjacent first blade 56a and second blade 56b, the protrusion 57 of the first blade 56a extends to or penetrates the opening formed in the second blade 56b. The protrusion 57 of the second blade 56b extends to or extends through the opening formed in the first blade 56a.

Further, in the impeller 52 according to the present embodiment, the first blade 56a and the second blade 56b are formed to be elastically deformable. Specifically, the first blade 56a and the second blade 56b are made of an elastically deformable material such as resin rubber, or the first blade 56a and the second blade 56b are elastically deformable. Thus, it is attached to the base portion 54.

Next, an operation when a bill is sent from the transport unit 18 to the impeller type stacking mechanism 50 having such a configuration will be described.

As described above, the impeller 52 of the impeller type stacking mechanism 50 is always rotated counterclockwise in FIG. 2 by the drive unit during the operation of the banknote handling apparatus 10. And when a banknote is sent from the conveyance part 18, the part near the edge part on either side of this banknote is between the 1st blade | wing 56a and the 2nd blade | wing 56b which were provided in each of a pair of left and right impellers 52. Each will be accepted. At this time, with respect to the adjacent first blade 56a and second blade 56b, the protruding portion 57 of the first blade 56a extends to the notch portion 58 of the second blade 56b or penetrates the notch portion 58. In addition, the protrusion 57 of the second blade 56b extends to the notch 58 of the first blade 56a or extends through the notch 58. As shown, the banknote P received between the first blade 56a and the second blade 56b is bent by the protruding portion 57 and becomes firm.

More specifically, when the stiffness of the banknote sent from the transport unit 18 to the impeller 52 is strong, the banknote is received between the first blade 56 a and the second blade 56 b in the impeller 52. When the first blade 56a or the second blade 56b is elastically deformed, the banknote is strongly held between the first blade 56a and the second blade 56b. At this time, the banknote is slightly curved by the protruding portion 57 to be firm.

Further, when the banknote sent from the transport unit 18 to the impeller 52 is weak, when the banknote is received between the first blade 56a and the second blade 56b in the impeller 52, these The first blade 56a and the second blade 56b are inserted between the

blades

56a and 56b deeply. At this time, the banknote is held weakly between the first blade 56a and the second blade 56b. At this time, the banknote is largely bent by the protruding portion 57 to be firm.

In this way, whether the banknote sent from the transport unit 18 to the impeller 52 is strong or weak, the banknote is reliably held between the first blade 56a and the second blade 56b. Become.

Thereafter, the banknotes received between the first blade 56a and the second blade 56b in each of the pair of left and right impellers 52 are brought into contact with the bottom surface of the stacking unit 30 and released from between the

blades

56a and 56b. Sent to the unit 30. In this way, banknotes are sent one by one from the impeller 52 to the stacking unit 30, and a plurality of banknotes are stacked in the stacking unit 30 in an aligned state.

As described above, according to the impeller 52 of the present embodiment, the projecting portion 57 is provided on at least one of the inner surface and the outer surface of each blade 56, and a pair of blades 56 adjacent in the circumferential direction of the base body portion 54. As for the first blade 56a and the second blade 56b, when viewed from the axial direction of the base portion 54, the protruding portion 57 of one blade 56 (for example, the first blade 56a) and the other blade 56 (for example, the first blade 56a). 2 (see FIG. 8), and the protrusion 57 of one blade 56 (for example, the first blade 56a) and the other blade 56 (for example, the second blade 56b) are in contact with each other. (See FIG. 5). For this reason, when the banknote sent to the impeller 52 is received between a pair of adjacent blades 56 (the first blade 56a and the second blade 56b), the banknote It is bent by the protrusion 57 provided on the outer surface, and becomes firm (see the bill P in FIG. 9). In this way, whether the banknote sent from the transport unit 18 to the impeller 52 is strong or weak, the banknote is reliably held between the first blade 56a and the second blade 56b. Thus, regardless of the original strength of the banknote, the banknote received between the pair of blades 56 is from between the pair of blades 56 (the first blade 56a and the second blade 56b). Jumping out by mistake is suppressed.

Further, in the impeller 52 of the present embodiment, as shown in FIGS. 6A and 7A, a pair of blades 56 adjacent in the circumferential direction of the base portion 54, that is, the first blade 56a and The second blade 56 b has a symmetrical shape when viewed from the normal direction of the base portion 54. At this time, the first blade 56 a and the second blade 56 b are each provided with a notch 58 and an opening (not shown), and when viewed from the normal direction of the base body 54, The protruding portion 57 of the other blade 56 opposes the cutout portion 58 and the opening of the other blade 56. For this reason, the banknotes sent to the impeller 52 are surely curved and stretched by the protrusions 57 extending to the notches 58 and the openings or extending through the notches 58 and the openings. become.

Further, in the impeller 52 of the present embodiment, the first blade 56a and the second blade 56b are formed to be elastically deformable. For this reason, even if the stiffness of the bill sent to the impeller 52 is strong, the first blade 56a and the second blade 56b are elastically deformed by the first blade 56a and the second blade 56b. It becomes possible to hold between them reliably.

In addition, as a structure of the impeller provided in the banknote processing apparatus 10, it is not limited to the thing as shown in FIG. 4 thru | or FIG. Hereinafter, the other aspect of the impeller provided in the banknote processing apparatus 10 is demonstrated using FIG. 10 and FIG. FIG. 10 is a perspective view showing another configuration of the impeller provided in the banknote handling apparatus of the present embodiment, and FIG. 11 is a perspective view showing the configuration of the blade provided in the impeller shown in FIG. .

As shown in FIG. 10, the impeller 72 according to the modified example includes a cylindrical base portion 74 and a plurality of outer peripheral surfaces of the base portion 74 that extend outward in the direction opposite to the rotation direction of the impeller 72. And blades 76. And a banknote is received between a pair of blade | wings 76 adjacent in the circumferential direction of the base | substrate part 74. As shown in FIG. Here, all the blades 76 provided in the impeller 72 have the same shape, but the pair of blades 76 adjacent in the circumferential direction of the base body 74 are arranged at positions shifted from each other in the axial direction of the base body 74. Has been. That is, when viewed from the normal direction of the base portion 74, the pair of adjacent blades 76 do not overlap. In other words, when viewed from the normal direction of the base portion 74, one blade 76 of the pair of adjacent blades 76 is provided in the right half region of the base portion 74, and the other blade 76 is the base portion. 74 is provided in the left half area. A bearing portion 73 is provided at the center of the base portion 74 so that a shaft (not shown) is received by the bearing portion 73. The impeller 72 is also rotated when the drive unit (not shown) rotates the shaft.

Each blade 76 in the impeller 72 according to the modification may be integrated with the base portion 74, or each blade 76 may be detachably attached to the outer peripheral surface of the base portion 74. Good.

Further, as shown in FIGS. 10 and 11, a protrusion 77 is provided on the inner surface of each blade 76. In the pair of blades 76 adjacent to each other in the circumferential direction of the base portion 74, the protruding portion 77 of one blade 76 overlaps the other blade 76 when viewed from the axial direction of the base portion 74. Further, with respect to a pair of adjacent blades 76, since these blades 76 are arranged at positions shifted from each other in the axial direction of the base portion 74, the protruding portion 77 of one blade 76 does not contact the other blade 76. It becomes like this.

In addition, instead of the protrusions 77 being provided on the inner surface of each blade 76, the protrusions 77 may be provided on the outer surface of each blade 76. Even in this case, with respect to the pair of blades 76 adjacent to each other in the circumferential direction of the base portion 74, the protruding portion 77 of one blade 76 overlaps the other blade 76 when viewed from the axial direction of the base portion 74.

Further, in the impeller 72 according to the modification, each blade 76 is formed to be elastically deformable. Specifically, each blade 76 is formed of an elastically deformable material such as resin rubber, or each blade 76 is attached to the base portion 74 so as to be elastically deformable.

When a banknote is sent from the transport unit 18 to an impeller 72 as shown in FIGS. 10 and 11, the banknote is received between a pair of adjacent blades 76. At this time, with respect to the pair of adjacent blades 76, the protrusion 77 of one blade 76 overlaps the other blade 76 when viewed from the axial direction of the base portion 74. The banknote received by the bend is bent by the projecting portion 77, and becomes firm.

More specifically, when the banknote sent from the transport unit 18 to the impeller 72 is strong, when the bill is received between the pair of blades 76 in the impeller 72, the blade 76 The banknote is strongly held between the pair of blades 76 by being elastically deformed. At this time, the banknote is slightly curved by the projecting portion 77 to be firm.

In addition, when the banknote sent from the transport unit 18 to the impeller 72 is weak, when the bill is received between the pair of blades 76 in the impeller 72, the bill is sent between the pair of blades 76. The bill is inserted deeply. At this time, the banknote is held weakly between the pair of blades 76. Further, at this time, the banknote is largely curved by the protruding portion 77 so as to be firm.

Thereafter, the banknotes received between the pair of blades 76 in the impeller 72 are released from between the blades 76 and sent to the stacking unit 30. In this way, banknotes are sent one by one from the impeller 72 to the stacking unit 30, and a plurality of banknotes are stacked in the stacking unit 30 in an aligned state.

As described above, also in the impeller 72 as shown in FIGS. 10 and 11, as in the impeller 52 as shown in FIGS. 4 to 9, at least one of the inner surface and the outer surface of each blade 76 has a protrusion 77. In the pair of blades 76 adjacent to each other in the circumferential direction of the base portion 74, the protruding portion 77 of one blade 76 and the other blade 76 overlap each other when viewed from the axial direction of the base portion 74. The protruding portion 77 of the other blade 76 is not in contact with the other blade 76. For this reason, when the banknote sent to the impeller 72 is received between a pair of adjacent blades 76, the banknote is bent by the protruding portions 77 provided on the inner surface or the outer surface of each blade 76. Koshi comes to be attached. As described above, even if the banknote sent from the transport unit 18 to the impeller 72 is strong or weak, the banknote is securely held between the pair of blades 76. Regardless of the original strength, the bills received between the pair of blades 76 are prevented from accidentally jumping out between the pair of blades 76.

Further, still another aspect of the impeller provided in the banknote handling apparatus 10 will be described with reference to FIGS. 12 and 13. FIG. 12 is a perspective view showing still another configuration of the impeller provided in the banknote handling apparatus of the present embodiment, and FIG. 13 is a perspective view showing a configuration of the blade provided in the impeller shown in FIG. is there.

As shown in FIG. 12, an impeller 82 according to another modified example extends from a cylindrical base portion 84 and an outer peripheral surface of the base portion 84 outward in a direction opposite to the rotation direction of the impeller 82. And a plurality of blades 86. And a banknote is received between a pair of blade | wings 86 adjacent in the circumferential direction of the base | substrate part 84. As shown in FIG. Here, all the blades 86 provided in the impeller 82 have the same shape. Further, a bearing portion 83 is provided at the center of the base portion 84 so that a shaft (not shown) is received by the bearing portion 83. The impeller 82 is also rotated by rotating a shaft by a drive unit (not shown).

Each blade 86 in the impeller 82 according to the modification may be integrated with the base portion 84, or each blade 86 may be detachably attached to the outer peripheral surface of the base portion 84. Good.

Further, as shown in FIGS. 12 and 13, a protrusion 87 is provided on the inner surface of each blade 86. Each blade 86 is provided with an opening 88. Here, as shown in FIG. 12, with respect to a pair of blades 86 adjacent in the circumferential direction of the base portion 84, the protruding portion 87 of one blade 86 is the other blade 86 when viewed from the normal direction of the base portion 84. This is opposed to the opening 88. Specifically, with respect to a pair of adjacent blades 86, the protruding portion 87 of one blade 86 extends to the opening 88 of the other blade 86 or extends through the opening 88. For this reason, the protrusion part 87 of one blade | wing 86 does not contact the other blade | wing 86. FIG.

In this way, with respect to a pair of adjacent blades 86, the protruding portion 87 of one blade 86 overlaps the other blade 86 when viewed from the axial direction of the base portion 84. In addition, with respect to a pair of adjacent blades 86, the protruding portion 87 of one blade 86 is positioned within the range of the opening 88 of the other blade 86 when viewed from the normal direction of the base portion 84. For this reason, the protrusion part 87 of one blade | wing 86 does not contact the other blade | wing 86. FIG.

In the impeller 82 according to the modified example, the protruding portion 87 may be provided on the outer surface of the blade 86 instead of the protruding portion 87 provided on the inner surface of the blade 86. When the protruding portion 87 is provided on the outer surface of the blade 86, the positional relationship between the protruding portion 87 and the opening 88 is reversed, and the protruding portion 87 and the opening 88 are formed in this order from the base portion 84 side toward the tip. Become so. Even in this case, with respect to the pair of blades 86 adjacent to each other in the circumferential direction of the base portion 84, the protruding portion 87 of one blade 86 faces the opening 88 of the other blade 86 when viewed from the normal direction of the base portion 84. Will come to do.

Further, in the impeller 82 according to the modified example, instead of providing the opening 88 in each blade 86, a notch portion may be provided. Even in this case, for a pair of adjacent blades 86, the protruding portion 87 of one blade 86 extends to a notch formed in the other blade 86 or extends through the notch.

Further, in the impeller 82 according to the modification, each blade 86 is formed to be elastically deformable. Specifically, each blade 86 is made of an elastically deformable material such as resin rubber, or each blade 86 is attached to the base portion 84 so as to be elastically deformable.

When a banknote is sent from the transport unit 18 to an impeller 82 as shown in FIGS. 12 and 13, the banknote is received between a pair of adjacent blades 86. At this time, the protrusions 87 of one blade 86 overlap the other blade 86 when viewed from the axial direction of the base portion 84 with respect to a pair of adjacent blades 86. The banknote received by the bend is bent by the protruding portion 87, and becomes firm.

More specifically, when the banknote sent from the transport unit 18 to the impeller 82 is strong, when the banknote is received between the pair of blades 86 in the impeller 82, The banknote is strongly held between the pair of blades 86 by being elastically deformed. At this time, the banknote is slightly curved by the protruding portion 87 to be firm.

In addition, when the banknote sent from the conveying unit 18 to the impeller 82 is weak, when the bill is received between the pair of blades 86 in the impeller 82, The bill is inserted deeply. At this time, the banknote is weakly held between the pair of blades 86. At this time, the banknote is largely bent by the protruding portion 87 to be firm.

Thereafter, the banknotes received between the pair of blades 86 in the impeller 82 are released from between the blades 86 and sent to the stacking unit 30. In this way, banknotes are sent one by one from the impeller 82 to the stacking unit 30, and a plurality of banknotes are stacked in the stacking unit 30 in an aligned state.

As described above, in the impeller 82 as shown in FIGS. 12 and 13, similarly to the impeller 52 as shown in FIGS. 4 to 9, at least one of the inner surface and the outer surface of each blade 86 has a protruding portion 87. In the pair of blades 86 adjacent to each other in the circumferential direction of the base portion 84, the protruding portion 87 of one blade 86 and the other blade 86 overlap each other when viewed from the axial direction of the base portion 84. The projecting portion 87 of the other blade 86 is not in contact with the other blade 86. For this reason, when the banknote sent to the impeller 82 is received between a pair of adjacent blades 86, the banknote is curved by the protrusion 87 provided on the inner surface or the outer surface of each blade 86. Koshi comes to be attached. As described above, even if the banknote sent from the transport unit 18 to the impeller 82 is strong or weak, the banknote is securely held between the pair of blades 86. Regardless of the original strength, the bills received between the pair of blades 86 are prevented from accidentally popping out between the pair of blades 86.

Next, still another modification example in which all the blades provided in the impeller have the same shape will be described with reference to FIGS. 14 and 15. FIG. 14 is a side view showing still another configuration of the impeller provided in the banknote handling apparatus of the present embodiment, and FIG. 15 is a perspective view showing a configuration of the blade provided in the impeller shown in FIG. is there.

As shown in FIG. 14, an impeller 92 according to still another modified example has a cylindrical base portion 94 and an outer peripheral surface of the base portion 94 outward in a direction opposite to the rotation direction of the impeller 92. And a plurality of blades 96 extending. And a banknote is received between a pair of blade | wing 96 adjacent in the circumferential direction of the base | substrate part 94. As shown in FIG. As described above, all the blades 96 provided in the impeller 92 have the same shape. A bearing portion 93 is provided at the center of the base portion 94, and a shaft (not shown) is received by the bearing portion 93. The impeller 92 is also rotated by rotating a shaft by a drive unit (not shown).

Each blade 96 in the impeller 92 according to a further modification may be integrated with the base portion 94, or each blade 96 is detachably attached to the outer peripheral surface of the base portion 94. May be.

In the impeller 92 according to a further modification as shown in FIGS. 14 and 15, each blade 96 is not provided with a protrusion. However, a portion near the tip of each blade 96 is curved in a V shape or a U shape toward the inside of the blade 96. 14 and 15, a portion near the tip of the blade 96 is curved with a V shape or a U shape toward the inside by a reference numeral 97. Each blade 96 is provided with an opening 98. A curved portion 97, which is a specific part of one blade 96, faces the opening 98 of the other blade 96. Specifically, for a pair of adjacent blades 96, a curved portion 97 of one blade 96 extends to an opening 98 of the other blade 96 or extends through the opening 98. For this reason, the curved portion 97 of one blade 96 does not contact the other blade 96.

In this way, with respect to a pair of adjacent blades 96, the curved portion 97 of one blade 96 overlaps the other blade 96 when viewed from the axial direction of the base portion 94. Further, with respect to the pair of adjacent blades 96, the curved portion 97 of one blade 96 is positioned within the range of the opening 98 of the other blade 96 when viewed from the normal direction of the base portion 94. For this reason, the curved portion 97 does not come into contact with the other blade 96.

Note that, in the impeller 92 according to a further modification, a notch may be provided instead of the opening 98 in each blade 96. Even in this case, for a pair of adjacent blades 96, the curved portion 97 of one blade 96 extends to an opening formed in the other blade 96 or extends through the opening.

Further, in the impeller 92 according to the modification, each blade 96 is formed to be elastically deformable. Specifically, each blade 96 is made of an elastically deformable material such as resin rubber, or each blade 96 is attached to the base portion 94 so as to be elastically deformable.

14 and 15, when a bill is sent from the transport unit 18 to the impeller 92 as shown in FIG. 15, the bill is received between a pair of adjacent blades 96. At this time, since the curved portion 97 of one blade 96 overlaps the other blade 96 when viewed from the axial direction of the base portion 94, the pair of adjacent blades 96 overlap each other. The banknote received by the bend is bent by the curved portion 97 of the one blade 96, and becomes sticky.

More specifically, when the banknote sent from the transport unit 18 to the impeller 92 is strong, when the banknote is received between the pair of blades 96 in the impeller 92, the blade 96 The banknote is strongly held between the pair of blades 96 by being elastically deformed. At this time, the banknote is slightly curved by the curved portion 97 of the one blade 96 to be firm.

In addition, when the banknote sent from the conveying unit 18 to the impeller 92 is weak, when the bill is received between the pair of blades 96 in the impeller 92, The bill is inserted deeply. At this time, the banknote is held weakly between the pair of blades 96. At this time, the banknote is greatly bent by the curved portion 97 of the one blade 96 to be firm.

Thereafter, the banknotes received between the pair of blades 96 in the impeller 92 are released from between the blades 96 and sent to the stacking unit 30. In this way, banknotes are sent to the stacking unit 30 one by one from the impeller 92, and a plurality of banknotes are stacked in the stacking unit 30 in an aligned state.

As described above, also in the impeller 92 as shown in FIGS. 14 and 15, a specific pair of blades 96 in the circumferential direction of the base body portion 94 in the one blade 96 is seen in the axial direction of the base body portion 94. The curved portion 97, which is a part, and the other blade 96 overlap each other, and the curved portion 97 of the one blade 96 and the other blade 96 do not come into contact with each other. For this reason, when the banknote sent to the impeller 92 is received between a pair of adjacent blades 96, the banknote is bent by the curved portion 97 of each blade 96 and becomes firm. . As described above, even when the banknote sent from the transport unit 18 to the impeller 92 is strong or weak, the banknote is securely held between the pair of blades 96. Regardless of the original strength of the sheet, the banknote received between the pair of blades 96 is prevented from accidentally popping out between the pair of blades 96.

Next, still another aspect of the impeller provided in the banknote handling apparatus 10 will be described with reference to FIGS. 16 is a cross-sectional view showing still another configuration of the impeller provided in the banknote handling apparatus of the present embodiment, and FIG. 17 is a cross-sectional view showing the configuration of the blade provided in the impeller shown in FIG. FIG. 18 is a perspective view showing a configuration of a blade provided in the impeller shown in FIG. 16, wherein (a) is a perspective view when the blade is viewed from the outside, and (b) is a blade. It is a perspective view when seeing from the inner side.

As shown in FIG. 16, an impeller 102 according to still another modified example has a cylindrical base portion 104 and an outer peripheral surface of the base portion 104 outward in a direction opposite to the rotation direction of the impeller 102. And a plurality of blades 106 extending. And a banknote is received between a pair of blade | wings 106 adjacent in the circumferential direction of the base | substrate part 104. As shown in FIG. Here, all the blades 106 provided in the impeller 102 have the same shape. A bearing portion 103 is provided at the center of the base portion 104 so that a shaft (not shown) is received by the bearing portion 103. The impeller 102 is also rotated by rotating a shaft by a drive unit (not shown).

Each blade 106 in the impeller 102 according to a further modification may be integrated with the base portion 104, or each blade 106 is detachably attached to the outer peripheral surface of the base portion 104. May be.

Further, in the impeller 102 according to a further modification, as shown in FIG. 17 and FIG. 18B, a protrusion 107 is provided on the inner surface of each blade 106. Further, as shown in FIG. 17 and FIG. 18A, the protrusions 107 of the adjacent blades 106 are formed on the surfaces of the blades 106 where the protrusions 107 are not provided, that is, the outer surfaces of the blades 106. A recess 108 that can be entered is provided. More specifically, as shown in FIG. 16, with respect to a pair of blades 106 adjacent in the circumferential direction of the base portion 104, the protrusion 107 of one blade 106 is It faces the hollow portion 108 of the blade 106. And about a pair of adjacent blade | wing 106, the protrusion part 107 of one blade | wing 106 enters into the hollow part 108 of the other blade | wing 106. FIG. For this reason, the protrusion 107 of one blade 106 does not come into contact with the other blade 106.

In this way, with respect to a pair of adjacent blades 106, the protruding portion 107 of one blade 106 enters the recessed portion 108 of the other blade 106, so that one blade 106 is viewed from the axial direction of the base portion 104. Projecting portion 107 overlaps with the other blade 106. Further, the protruding portion 107 of one blade 106 does not come into contact with the other blade 106.

In the impeller 102 according to the modification, the protruding portion 107 may be provided on the outer surface of the blade 106 instead of the protruding portion 107 provided on the inner surface of the blade 106. When the protrusion 107 is provided on the outer surface of the blade 106, the positional relationship between the protrusion 107 and the recess 108 is reversed, and the protrusion 107 and the recess 108 are formed in this order from the base 104 to the tip. Become so. Even in this case, with respect to the pair of blades 106 adjacent to each other in the circumferential direction of the base portion 104, the protruding portion 107 of one blade 106 enters the recessed portion 108 of the other blade 106.

Further, in the impeller 102 according to the modified example, each blade 106 is formed to be elastically deformable. Specifically, each blade 106 is formed of an elastically deformable material such as resin rubber, or each blade 106 is attached to the base portion 104 so as to be elastically deformable.

When a banknote is sent from the transport unit 18 to the impeller 102 as shown in FIGS. 16 to 18, the banknote is received between a pair of adjacent blades 106. At this time, with respect to the pair of adjacent blades 106, the protrusion 107 of one blade 106 overlaps the other blade 106 when viewed from the axial direction of the base portion 104. The banknote received by the bend is bent by the projecting portion 107 and becomes firm.

More specifically, when the banknote sent from the transport unit 18 to the impeller 102 is strong, when the banknote is received between the pair of blades 106 in the impeller 102, the blade 106 The banknote is strongly held between the pair of blades 106 by being elastically deformed. At this time, the banknote is slightly bent by the protruding portion 107 to be firm.

In addition, when the banknote sent from the transport unit 18 to the impeller 102 is weak, when the banknote is received between the pair of blades 106 in the impeller 102, The bill is inserted deeply. At this time, the banknote is held weakly between the pair of blades 106. At this time, the banknote is largely bent by the protruding portion 107 to be firm.

Thereafter, the banknote received between the pair of blades 106 in the impeller 102 is released from between the blades 106 and sent to the stacking unit 30. In this way, banknotes are sent to the stacking unit 30 one by one from the impeller 102, and a plurality of banknotes are stacked in the stacking unit 30 in an aligned state.

As described above, in the impeller 102 as shown in FIGS. 16 to 18, similarly to the impeller 52 as shown in FIGS. 4 to 9, at least one of the inner surface and the outer surface of each blade 106 has a protruding portion 107. In the pair of blades 106 adjacent in the circumferential direction of the base portion 104, the protruding portion 107 of one blade 106 and the other blade 106 overlap with each other when viewed from the axial direction of the base portion 104. The protruding portion 107 of the other blade 106 is not in contact with the other blade 106. Further, a recess 108 into which the protrusion 107 of the adjacent blade 106 enters is provided on the surface of each blade 106 where the protrusion 107 is not provided. For this reason, when the banknote sent to the impeller 102 is received between a pair of adjacent blades 106, the banknote is bent by the protrusion 107 provided on the inner surface or the outer surface of each blade 106. Koshi comes to be attached. As described above, even if the banknote sent from the transport unit 18 to the impeller 102 is strong or weak, the banknote is securely held between the pair of blades 106. Regardless of the original firmness, the banknotes received between the pair of blades 106 are prevented from accidentally popping out between the pair of blades 106.

Next, the manufacturing method of the impeller according to the present embodiment will be described. As an example of the manufacturing method of the impeller according to the present embodiment, in the impeller 52 as shown in FIG. 5, the first blade 56 a and the second blade 56 b are integrated with the base portion 54. A method for manufacturing the type of impeller 52 will be described below.

First, a pair of molds each having a cavity are prepared. Here, the shape of the cavity formed inside the pair of molds is a shape corresponding to the impeller 52 as shown in FIG.

Next, a pair of molds are matched, and a molding material is injected into the cavities in the pair of molds. As the molding material, for example, an elastically deformable material such as resin rubber is used.

After the molding material is injected into the cavities in the pair of molds, the molding material is solidified by cooling these molds. Then, the impeller 52 produced | generated from molding materials, such as a material which can be elastically deformed, can be obtained now by separating a pair of metal mold | die. Specifically, in the impeller 52 thus obtained, a pair of

blades

56a and 56b adjacent to each other in the circumferential direction of the base portion 54 have a symmetrical shape, and the inner surface or outer surface of each

blade

56a and 56b. At least one of the

blades

56a and 56b is provided with a notch 58, and a pair of

blades

56a and 56b adjacent to each other in the circumferential direction of the base portion 54 is provided with a base body. As seen from the axial direction of the portion 54, the protruding portion 57 of one blade (for example, the first blade 56a) and the other blade (for example, the second blade 56b) overlap and one blade (for example, the first blade 56a) The protrusion 57 of the blade 56a) and the other blade (for example, the second blade 56b) are not in contact with each other.

In addition, a pair of molds each having a cavity are prepared, and then the pair of molds are combined, a molding material is injected into the cavities in the pair of molds, and the pair of molds In the manufacturing method of the impeller that obtains the impeller generated from the molding material, in addition to the impeller 52 as shown in FIG. It is possible to manufacture an impeller, specifically, an impeller 72 as shown in FIG.

In the impeller and the paper sheet stacking apparatus according to the present invention, the processing target is not limited to banknotes. Other types of paper sheets such as checks may be used as the processing target.

Claims

A cylindrical base portion;
A plurality of blades provided so as to extend outward from the outer peripheral surface of the base portion and arranged at equal intervals in the circumferential direction of the base portion, and between a pair of blades adjacent in the circumferential direction of the base portion A plurality of feathers for receiving leaves,
With
A protrusion is provided on at least one of the inner surface or the outer surface of each blade,
For a pair of blades adjacent in the circumferential direction of the base portion, the protruding portion of one blade and the other blade overlap each other when viewed from the axial direction of the base portion, and the protruding portion and the other blade of one blade Impeller characterized in that it does not come into contact.
The impeller according to claim 1, wherein a pair of blades adjacent in the circumferential direction of the base portion have a symmetrical shape.
The impeller according to claim 1, wherein the blades have the same shape.
Each blade is provided with an opening or notch,
With respect to a pair of blades adjacent in the circumferential direction of the base portion, the protruding portion of one blade faces the opening or notch portion of the other blade as viewed from the normal direction of the base portion. The impeller according to any one of claims 1 to 3, wherein the impeller is provided.
4. The impeller according to claim 3, wherein the pair of blades adjacent in the circumferential direction of the base portion are arranged at positions shifted from each other in the axial direction of the base portion.
2. The impeller according to claim 1, wherein a recess portion into which the protruding portion of the adjacent blade enters is provided on a surface of each blade not provided with the protruding portion.
The impeller according to claim 6, wherein the protruding portion is provided on an inner surface of each blade, and the recessed portion is provided on an outer surface of each blade.
The impeller according to any one of claims 1 to 7, wherein the blade is formed to be elastically deformable.
A cylindrical base portion;
A plurality of blades provided so as to extend outward from the outer peripheral surface of the base portion and arranged at equal intervals in the circumferential direction of the base portion, and between a pair of blades adjacent in the circumferential direction of the base portion A plurality of feathers for receiving leaves,
With
Regarding a pair of blades adjacent in the circumferential direction of the base portion, a specific portion of one blade overlaps with the other blade as viewed from the axial direction of the base portion, and the specific portion of one blade and the other blade Impeller characterized in that it does not come into contact with.
The impeller according to any one of claims 1 to 9, wherein each blade is integrated with the base portion.
The impeller according to any one of claims 1 to 9, wherein each blade is detachably attached to an outer peripheral surface of the base portion.
An accumulating unit for collecting paper sheets;
The impeller according to any one of claims 1 to 11, provided in the stacking unit,
With
Paper sheets sent to the stacking unit from the outside of the stacking unit are first received between a pair of blades adjacent in the circumferential direction of the base unit in the impeller, and then between a pair of blades in the impeller. A paper sheet stacking apparatus, wherein paper sheets are released from the impeller and stacked in the stacking unit.
A method of manufacturing an impeller according to claim 10,
Preparing a pair of molds each having a cavity therein; and
A step of matching the pair of molds and injecting a molding material into cavities in the pair of molds;
Obtaining an impeller generated from the molding material by separating the pair of molds;
An impeller manufacturing method characterized by comprising:
In the step of obtaining the impeller generated from the molding material, a pair of blades adjacent in the circumferential direction of the base body have a symmetrical shape, and at least one of the inner surface or the outer surface of each blade has a protrusion. In addition, each blade is provided with a notch, and the protrusion of one of the blades as viewed from the axial direction of the base portion of a pair of blades adjacent in the circumferential direction of the base portion. 14. An impeller according to claim 13, wherein the impeller is obtained such that the first blade and the other blade overlap with each other, and the protruding portion of the one blade and the other blade are not in contact with each other. Production method.