JP2007145547A - Folder fan and paper sheet stacking device having folder fan - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a folder fan and a paper sheet stacking device without damaging a bill, by sufficiently securing a stacking space, even when a doubly curled bill is sent. <P>SOLUTION: This folder fan 11 is obliquely formed in a blade part 13 to a central part 12. The blade part 13 has flexibility, and deflects in the rotary shaft direction when contacting with the bill by rotation of the folder fan 11. At this time, the bill contacting with the blade part 13 is moved in the rotary shaft direction. Thus, when the bill is curved, its curve can be smoothed, and a bill stacking space can be sufficiently secured. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an impeller for stacking conveyed paper sheets at a stacking position and a paper sheet stacking apparatus having the impeller.

  2. Description of the Related Art Conventionally, banknote depositing and dispensing devices include a stacking unit that stacks banknotes in the device. The stacking unit is provided with a movable stage that can move up and down, and bills are placed on the movable stage. In order to feed banknotes into the stacking unit, there are provided a feed roller, a pressure roller capable of being pressed against the feed roller and applying a pressing force to the feed roller, and an impeller rotatable coaxially with the pressure roller. An impeller has a flexible blade | wing part which strikes the rear-end part of a banknote and hold | suppresses a banknote to a stacking part, when collecting a banknote in a stacking part.

  When stacking banknotes in the stacking unit, the movable stage is first lowered to secure a stacking space at the upper part of the movable stage (the upper part of the banknotes when banknotes are already stacked). Then, the pressure roller is pressed against the feed roller by the link mechanism, and the feed roller is driven to rotate. As a result, the pressure roller and the impeller coaxial with the pressure roller rotate, and when the banknote is fed from the conveyance path, the blade of the impeller is drawn so as to hold the banknote from below, and the banknote is fed with the feed roller. When sandwiched between the pressure rollers, the two rollers feed the paper into the stacking space. When the two rollers pass through the two rollers, the banknotes are pushed by the blades of the impeller and knocked down by the stacking unit. After that, it continues to be struck so that it does not rise, and it is drawn and aligned. As a result, a space is secured in which bills sent next can be collected.

As described above, the impeller operates to knock the conveyed banknotes onto the upper part of the already accumulated banknotes. As an accumulating apparatus having such an impeller, for example, Japanese Patent Application Laid-Open No. 2003-171068. There are those described in the Gazette.
JP 2003-171068 A

  However, in the banknote depositing / withdrawing apparatus having the conventional impeller, when a banknote that has been put in a bi-fold wallet for a long time and has two folded folds is deposited, the stacking mechanism as shown in FIG. There was a problem that banknotes with broken folds could not be crushed sufficiently, and sufficient accumulation space could not be secured. FIG. 12 is a front view showing a conventional integrated device.

  That is, in FIG. 12, the impeller 1 is provided on both sides of the banknote 2 and strikes both end portions of the banknote 2. Therefore, when the banknote 2a with a double crease with a raised central part is sent, the central part of the banknote 2a cannot be sufficiently crushed, and as a result, a sufficient stacking space can be secured. become unable.

  Moreover, in order to ensure sufficient stacking space, if the force which taps the banknote 2 of the impeller 1 is enlarged, for example, if the thickness of the blade part 1a is formed thick, the pressing force to the banknote 2 to be stacked becomes large. 2 could be damaged.

  Therefore, an object of the present invention is to provide an impeller and a paper sheet stacking apparatus that can secure a sufficient stacking space even when a banknote with two folded folds is sent and that does not damage the banknote. It is to provide.

  In order to solve the above-mentioned problems, the impeller of the present invention is a rotatable impeller that is used in a paper sheet stacking device and that pushes the transported paper sheet to a stacking position and knocks it down. Accordingly, a blade portion is provided that generates a force for moving the paper sheet in the direction of the rotation axis by being bent in the direction of the rotation axis after contacting the paper sheet.

  The paper sheet stacking apparatus according to the present invention is a paper sheet stacking apparatus that rotates and transports the conveyed paper sheet to the stacking position by rotating the impeller, and the impeller rotates as the impeller rotates. Then, after contacting the paper sheet, it has a blade part that generates a force for moving the paper sheet in the rotation axis direction by bending in the rotation axis direction.

  According to the present invention, by rotating the impeller, the blade portion that contacts the paper sheet is bent in the rotation axis direction, and as a result, the paper sheet is moved in the rotation axis direction. Therefore, when the paper sheet is curved, the curve can be made smooth, and a sufficient space for collecting the paper sheet can be secured. Moreover, since it is not necessary to form a blade part thickly, paper sheets are not damaged.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Elements common to the drawings are denoted by the same reference numerals. FIG. 1 is a perspective view showing an impeller according to an embodiment of the present invention, FIG. 2 is a side view showing a banknote stacking apparatus according to the embodiment, and FIG. 3 is a front view showing the banknote stacking apparatus according to the embodiment. In the present embodiment, a banknote stacking apparatus will be described as an example of the paper sheet stacking apparatus.

  In FIG. 1, an impeller 11 according to the embodiment has a plurality of blade portions 13 formed radially at equal intervals in a center portion 12. The blade portion 13 is formed obliquely with respect to the center portion 12. That is, the blade portion 13 is formed at an angle θ with respect to the rotation axis direction 14 of the impeller 11. The impeller 11 has flexibility and is made of, for example, a rubber material. The shape of the blade portion 13 is a substantially rectangular parallelepiped, and is formed so that the tip end portion 13a first comes into contact with the banknote at the stacking position, as will be described later.

  2 and 3, the banknote stacking device 21 is provided with a movable stage 22, a feed roller 23, a pressure roller 24, and an impeller 11. The movable stage 22 has slider portions 25 at both ends. The slider portion 25 is slidably attached to a shaft 26 and is fixed to a belt 27. When the belt 27 is rotated by a drive motor (not shown), the slider portion 25 moves up and down along the shaft 26, and thus the movable stage 22 also moves up and down.

  The banknotes 2 are stacked on the movable stage 22. That is, the upper part of the movable stage 22 constitutes the stacking unit 28. An accumulation space 29 is formed in the upper part of the accumulated banknotes 2. The accumulation space 29 is a space formed in the upper part of the uppermost banknote 2 by lowering the movable stage 22. The vertical movement of the movable stage 22 is controlled by a pulse control or the like for the drive motor using a sensor or an encoder (not shown).

  The feed roller 23 is attached to the shaft 30 and is rotationally driven by a drive motor (not shown). The pressure roller 24 and the impeller 11 are attached to a movable shaft 31. The movable shaft 31 creates a state in which the pressure roller 24 is pressed against the feed roller 23 and a state in which the pressure roller 24 is separated from the feed roller 23 by a link mechanism (not shown). By pressing the pressure roller 24 against the feed roller 23, the rotation of the feed roller 23 is transmitted to the pressure roller 24 and the impeller 11.

  As shown in FIG. 3, the impeller 11 is provided on both sides of the pressure roller 24, and the impeller assembly 32 is configured by one pressure roller 24 and the two impellers 11. The two impeller assemblies 32 a and 32 b are respectively disposed at positions facing both sides of the banknote 2.

  As shown in FIG. 2, the feed roller 23 is connected to a pickup roller 34 by a belt 33. The pickup roller 34 is a roller for mainly feeding the stacked banknotes 2, and is also driven when stacking the banknotes 2. In addition, a conveyance roller 36 is provided in the conveyance path 35 where the banknote 2 is conveyed, and the conveyance roller 36 is in pressure contact with the feed roller 23 to convey the banknote 2.

  FIG. 4 is an explanatory view showing the arrangement of the impellers, as viewed from the opposite side of FIG. 3 is a view seen from the direction of arrow A shown in FIG. 2, and FIG. 4 is a view seen from the direction of arrow B shown in FIG. In FIG. 4, the direction of the blade portion 13 of the impeller 11 of the impeller assembly 32 a is such that the outer side (right side in the drawing) of the blade portion 13 contacts the banknote 2 first. In the impeller assembly 32a, the two blade portions 13 are in the same direction. On the other hand, the direction of the blade portion 13 of the impeller 11 of the other impeller assembly 32b is such that the outer side (left side in the drawing) of the blade portion 13 contacts the banknote 2 first. In the impeller assembly 32b, the two blade portions 13 are in the same direction.

  That is, the direction of the blade portion 13 of the impeller 11 of both the impeller assemblies 32a and 32b becomes higher toward the central portion of the bill 2 as viewed from the side of the accumulated bill 2, and lower toward both sides. It is arranged to be. This state is shown in the enlarged view of FIG. 5 is an enlarged view of a portion C shown in FIG.

  Next, the operation of the present embodiment will be described. Here, an operation of stacking the conveyed banknotes in the stacking unit will be described. 2 and 3, first, the belt 27 is moved by a motor (not shown), and the movable stage 22 is lowered. At this time, the lowering amount of the movable stage 22 is controlled by pulse control or the like for the motor using a sensor or an encoder (not shown).

  As the movable stage 22 descends, an accumulation space 29 is secured above the already accumulated banknotes 2. Next, the feed roller 23 is driven by a drive motor (not shown), and the pressure roller 24 is pressed against the feed roller 23 by a link mechanism (not shown). As a result, the feed roller 23 and the pickup roller 34 rotate in the counterclockwise direction in FIG. 2, and the pressure roller 24 and the impeller 11 rotate in the clockwise direction.

  When the banknote 2 is transported from the transport path 35, the banknote 2 is sandwiched between the feed roller 23 and the pressure roller 24 and transported in the direction of the accumulation space 29. When the rear end portion of the banknote 2 comes out of the feed roller 23 and the pressure roller 24, the banknote 2 is pushed by the rear end portion by the blade portion 13 of the impeller 11 and enters the accumulation space 29. The banknotes 2 that have entered the accumulation space 29 are hit at the rear end portion from above by the rotating blade portion 13. The state at this time is shown in FIG. FIG. 6 is an operation explanatory view showing the operation of the blade portion.

  6 and 7 show the operation of the blade portion of the impeller assembly. FIG. 6 is a view of the blade portion 13 of the impeller assembly 32b seen from the direction of arrow D in FIG. 4, and FIG. 7 shows the impeller assembly 32b. It is the figure which looked at the blade | wing part 13 of this from the arrow B direction in FIG. In FIG. 6, only one blade portion 13 is shown.

  First, as shown in FIG. 6A and FIG. 7A, the blade portion 13 is brought into contact with the bill 2 at the edge portion 13 b of the tip portion 13 a. The tip 13 a of the blade 13 is bent by the rotation of the blade 13. At this time, the tip 13a of the blade 13 is bent in the direction opposite to the rotation direction of the blade 13 as shown in FIG. 6B, and at the same time, as shown in FIG. That is, it bends in the direction of arrow E.

  The tip portion 13a of the blade portion 13 bends in the direction opposite to the rotation direction, thereby generating a force for pressing the banknote 2 downward, and the banknote 2 that has been conveyed is pressed onto the banknote 2 that has already been stacked. An accumulation space is formed in the upper part. Moreover, the force F which moves the banknote 2 which contacts the blade | wing part 13 to the same direction by the bending of the front-end | tip part 13a of the blade | wing part 13 in the arrow E direction generate | occur | produces. In addition, the blade | wing part 13 is formed with high friction members, such as a rubber material, and the force F between the blade | wing part 13 and the banknote 2 which contacts the blade | wing part 13 becomes large.

  The direction of arrow E in the impeller assembly 32b is a direction from the central part of the banknote 2 toward the side edge, and when a force F is generated in this direction, the banknote 2 moves in the same direction and a curve is formed in the central part. If so, the curvature is flattened.

  When the blade portion 13 further rotates, as shown in FIGS. 6C and 7C, the tip portion 13a of the blade portion 13 is further bent in the reverse direction of the rotation direction and the rotation axis direction, and the force pressing the banknote 2 And the force F which moves to an axial direction continues generate | occur | produces, and the front-end | tip part 13a of the blade | wing part 13 remove | deviates from the banknote 2 soon.

  Similarly, in the impeller assembly 32a, a force F for moving the banknote 2 in the axial direction is generated by bending the tip portion 13a of the blade portion 13. In this case, since the blade portion 13 is formed opposite to the inclination angle of the blade portion 13 of the impeller assembly 32b, a force F ′ for moving the banknote 2 in the opposite direction is generated as shown in FIG. .

  Even when a curve is formed in the central portion of the banknote 2 due to the generation of the banknote moving force due to the deflection of the blade section 13 in the both impeller assemblies 32a and 32b, the curve is crushed and the banknote 2 becomes flat. That is, even when a bill with two folded folds is sent, a sufficient accumulation space can be secured. Although the distance by which the bill 2 is moved by one blade portion 13 is short, the forces F and F ′ that cause the plurality of blade portions 13 to move continuously by the rotation of the impeller assemblies 32a and 32b are generated. The amount of movement that can be crushed into a flat plate shape is obtained.

  As described above, according to the present embodiment, the banknote 2 can be moved in the width direction by forming the blade portion 13 of the impeller 11 obliquely, and the banknote 2 with a double fold is bent. Can be flattened. Therefore, it is possible to sufficiently secure the accumulation space 29 necessary for the accumulation of the banknotes 2.

  Further, in the left and right impeller assemblies 32a and 32b, by shifting the phase of the blade portion 13 (timing for contacting the banknote 2), the operation of extending the curvature of the banknote 2 can be performed in small increments. The effect of flattening becomes more prominent.

  Moreover, since the blade | wing part 13 of the impeller 11 contacts the banknote 2, it gradually bends in the direction of the side edge part from the center part of the banknote 2, Therefore The blade | wing part 13 which contacts the banknote 2 is already banknote 2 already. The banknotes 2 are not overlapped on the wing parts 13 that are bent in contact with the wings, that is, the banknotes 2 are not pressed by the wing parts 13 that overlap each other, and the banknotes 2 are not damaged by the wing parts 13.

  Although the said embodiment demonstrated the banknote stacking apparatus as an example as a paper sheet stacking apparatus, this invention is applicable also to another apparatus. Next, a case where the present invention is applied to a printer will be described. Here, an explanation will be given by taking a printing paper discharge mechanism of a printer as an example of the paper sheet stacking apparatus.

  FIG. 9 is a side view showing the paper discharge mechanism of the printer, and FIG. 10 is a front view showing the discharge mechanism of the printer. In both figures, the paper discharge mechanism 41 is provided with conveyance guides 42 and 43 for guiding the conveyed paper, and a discharge portion 44 is formed at the end thereof. In the vicinity of the discharge portion 44, a driving roller 45, an impeller 46 provided coaxially with the driving roller 45, and a tension roller 47 that presses the driving roller 45 are rotatably provided.

  As shown in FIG. 10, the drive roller 45 and the impeller 46 are attached to a shaft 48 and rotate together. The shaft 48 is rotated by a drive motor (not shown). The impeller 46 is provided on both sides of the drive roller 45, and a plurality of blade portions 50 are radially formed in the central portion 49 at equal intervals. The shape of the impeller 46 itself is the same as that of the embodiment shown in FIG. 1, and the blade portion 50 is formed obliquely with respect to the center portion 49. In this embodiment, FIG. As shown, all the disposed blade portions 50 are arranged so as to incline in the same direction. Further, as shown in FIG. 9, a stage 51 is provided below the discharge portion 44 so as to be movable up and down. The stage 51 is a stack of printing paper 52 thereon.

  The paper 52 printed by the printing unit of the printer is conveyed in the direction of arrow C between the conveyance guide 42 and the conveyance guide 43. Then, it is sandwiched between the drive roller 45 and the tension roller 47 in the vicinity of the discharge unit 44 and discharged from the discharge unit 44 onto the stage 51. The discharged paper 52 is collected on the stage 51. However, if the edge of the paper 52 is lifted, for example, due to curling or folding, the discharge part 44 may be blocked. In order to prevent this, the paper 52 discharged by the blade portion 50 of the impeller 46 is hit from above to prevent the discharge portion 44 from being blocked.

  In the present embodiment, the vertical movement of the stage 51 is controlled according to the amount of the accumulated paper 52 so that the blade portion 50 of the impeller 46 can always strike the paper 52 on the stage 51 from a certain distance. Thus, the distance between the uppermost portion of the sheets 52 accumulated and the blade portion 50 is made constant. The blade portion 50 of the impeller 46 contacts the sheet 52 discharged from the discharge portion 44 onto the stage 51. At that time, as described with reference to FIGS. 6 and 7 of the above embodiment, the tip of the blade portion 50 is bent, and the paper 52 is moved in the direction indicated by the arrow G shown in FIG. Move in the direction.

  Thus, since the blade portion 50 of the impeller 46 always moves the paper 52 discharged onto the stage 51 in the direction of the one side 51a of the stage 51, the next paper 52 is conveyed to the discharge portion 44. While coming, the discharged paper 52 is aligned with one side 51 a of the stage 51.

  As described above, according to the paper discharge mechanism to which the present invention is applied, the blade portion 50 of the impeller 46 disposed in the vicinity of the discharge portion 44 is discharged obliquely in the same direction to be discharged onto the stage 51. It is possible to align all the sheets 52 on one side. In the example shown in FIG. 10, five impellers 46 are provided. However, when the paper 52 is moved in one direction, a plurality of impellers 46 are not necessarily required, and only one impeller 46 may be provided. Good.

  Various modifications to this embodiment are possible. For example, a modification as shown in FIG. 11, that is, a modification in which the sheet alignment side is switched is possible. In FIG. 11, impeller assemblies 63a and 63b composed of a drive roller 61 and an impeller 62, and impeller assemblies 65a and 65b composed of a drive roller 61 and an impeller 64, respectively, are provided.

  The blade portions 66 of the impeller assemblies 63a and 63b are formed obliquely with respect to the center portion 67 so that the left side in the drawing contacts the paper 52 first. On the other hand, the blade portions 68 of the impeller assemblies 65a and 65b are formed obliquely with respect to the center portion 69 so that the right side in the drawing contacts the paper 52 first.

  The impeller assemblies 63a and 63b are driven at the same time and can be simultaneously brought into and out of contact with the tension roller 70 by a mechanism (not shown). The other impeller assemblies 65a and 65b are also driven at the same time and can be simultaneously brought into and out of contact with the tension roller 70, but are not driven when the impeller assemblies 63a and 63b are driven.

  By providing such a mechanism, when it is desired to align the paper 52 with the right side portion in the figure, the impeller assemblies 65a and 65b are driven while being pressed against the tension roller 70, and conversely on the left side portion. In order to align them, the impeller assemblies 63a and 63b are driven by being brought into pressure contact with the tension roller 70. As a result, the alignment side of the paper 52 can be switched, and the alignment side of the paper 52 can be switched for each printing unit.

It is a perspective view which shows the impeller of embodiment of this invention. It is a side view which shows the banknote stacking apparatus of embodiment. It is a front view which shows the banknote stacking apparatus of embodiment. It is explanatory drawing which shows arrangement | positioning of an impeller. FIG. 5 is a partially enlarged view of FIG. 4. It is operation | movement explanatory drawing which shows operation | movement of the blade | wing part of an impeller assembly. It is operation | movement explanatory drawing which shows operation | movement of the blade | wing part of an impeller assembly. It is operation | movement explanatory drawing which shows operation | movement of the blade | wing part of an impeller assembly. It is a side view showing a paper discharge mechanism of the printer. It is a front view which shows the discharge mechanism of a printer. It is a mechanism figure which shows a modification. It is a front view which shows the conventional integrated device.

Explanation of symbols

2 bill 11 impeller 13 blade portion 21 bill stacking device 22 movable stage 29 stacking space 41 paper discharge mechanism 46 impeller 50 blade portion 52 paper

Claims (3)

In a rotatable impeller that is used in a paper sheet stacking device and presses the transported paper sheet to the stacking position and knocks it down,
An impeller comprising a blade portion that generates a force to move the paper sheet in the direction of the rotation axis by being bent in the direction of the rotation axis after contacting the paper sheet as it rotates. . In the paper sheet stacking apparatus that rotates the impeller and pushes it down by pushing the impeller to the stacking position,
The impeller is
A paper sheet characterized by having a blade portion that generates a force to move the paper sheet in the direction of the rotation axis by flexing in the direction of the rotation axis after contacting the paper sheet as it rotates. Integrated device. A plurality of the impellers are provided,
The blades of the impeller are arranged on both sides of the paper sheet at the stacking position with the central part of the paper sheet as a boundary, and each blade part moves in a direction away from the central part. The paper sheet stacking apparatus according to claim 2, wherein the paper stacking direction is adapted to generate a force to be generated.

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