JP2011255976A - Paper sheet carrying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To carry paper sheets by being registered to a carrying passage of a paper sheet carrying device.SOLUTION: A frictional carrying device (4) rotatably arranged in the carrying passage (2), a driving device (5) for rotatingly driving the frictional carrying device (4) and a load device (7) for pressing the paper sheets (1) to the frictional carrying device (4), are arranged in a carrying device (3) of the paper sheet carrying device. The paper sheets (1) moving in the direction for eliminating reaction in a two-dimensional plane including a contact surface with a sphere (6), are automatically aligned, and are registered to the axis in the length direction of the carrying passage (2).

Description

  The present invention relates to a paper sheet transport apparatus that transports paper sheets such as banknotes in alignment with a transport path.

  2. Description of the Related Art A paper sheet transport device including a centering device or a centering device that automatically aligns a bill inserted into a transport passage with a deviation or inclination from the central axis in the length direction of the transport passage is known. . For example, the following Patent Document 1 includes a conveyance path and a plurality of rotors arranged in parallel to the side wall of the conveyance path, and without affecting the money medium due to rotation around each rotor, The paper sheet conveying apparatus which provides the surface which conveys a money medium intermittently in the longitudinal direction of a conveyance path, and aligns a medium with respect to a side wall in a rotor is shown. In this paper sheet transport device, the rotor is intermittently brought into contact with the money medium to drive and transport the money medium when the money medium and the rotor are in contact with each other, and to the side wall of the transport passage when the money medium and the rotor are not in contact with each other. It is possible to convey the money medium along the conveyance path by automatically aligning the money medium with the conveyance path while releasing the distortion of the money medium accumulated by contact. In the paper sheet conveying device of Patent Document 1, a mechanism for intermittently contacting the rotor with the monetary medium is required, and the rotor is intermittently brought into contact with the monetary medium. There is a difficulty to replace the rotor.

  Patent Document 2 includes a driving roller and a passive roller that is disposed so as to face the driving roller and has a flat portion or a notch, and conveys a bill while sandwiching the bill between the driving roller and the passive roller. At the same time, when the rotation of the passive roller is stopped, a gap is formed between the passive roller and the driving roller by the flat portion or the cutout portion of the passive roller, and the bill is conveyed through the gap in the conveyance path and aligned with the conveyance path. A bill drive roller device is shown. In the bill drive roller device of Patent Document 2, since a mechanism for stopping the rotation of the passive roller is required, there is a defect that the passive roller cannot be continuously rotated and the structure of the device is complicated.

  Patent Document 3 slides along a common axis between an elongate slot for receiving a banknote in a vertical direction and a narrow position provided in cooperation with the slot and forming an open position and a minimum width on both sides of the slot. A pair of side pressing members, a banknote driving device that drives the banknote to a central position where the banknote aligns from the insertion position in the slot, and the side pressing members facing each other at equal intervals from the center line of the slot A banknote centering apparatus provided with the side part pressing member drive device which has the alignment motor which moves is shown. The aligning motor opens the side pressing member until the center of the banknote is aligned within the slot by facing the side of the banknote by the inner side movement of the side pressing member and bringing the side pressing member into contact with the entire length of the slot. Drive from position to narrow position. The side pressing member driving device disposed on one side of the common shaft has a screw driving portion that is drivingly connected to the side pressing member, and the screw driving portion having a second axis parallel to the common shaft is in an open position. The side pressing member is kept in a state of being properly separated during movement between the position and the narrow position. The banknote centering device of Patent Document 3 has a defect that requires a side pressing member and a side pressing member driving device that moves a pair of side pressing members so as to be movable forward and backward relative to each other.

  In Patent Document 4, when a banknote is transported by a first transport unit that transports a banknote taken into one transport path that supplies a plurality of types of banknotes having different length directions in the lateral direction, and the first transport unit, An alignment means that acts from both side lines of the banknote and moves the banknote toward the center, and a second transport section that is arranged in the four-fold section of the banknote that is moved toward the center by the alignment section and transports the banknote for reading. The banknote alignment reading apparatus provided with the read head arrange | positioned in parts other than the four fold part of the banknote read and conveyed by the 2nd conveyance part is shown. Since patent document 4 requires the alignment means which acts from the both-sides line of a banknote, and brings a banknote toward a center part, there exists a difficulty which cannot increase the number of parts and can reduce a manufacturing price.

US Pat. No. 6,712,356 US Pat. No. 6,860,480 US Pat. No. 6,149,150 Japanese Patent Laid-Open No. 55-115891

  The conventional aligning (centering) device for aligning the banknotes conveyed in the conveyance path with the conveyance path has a complicated structure and a complicated manufacturing process, and it is difficult to reduce the manufacturing cost. An object of this invention is to provide the paper sheet conveying apparatus which can align the paper sheets conveyed along a conveyance path with a simple structure with respect to a conveyance path.

  The paper sheet transport apparatus according to the present invention includes a transport path (2) and a transport apparatus (3) that transports the paper sheet (1) along the transport path (2). The conveying device (3) includes a friction conveying device (4) rotatably provided in the conveying passage (2), a driving device (5) for rotationally driving the friction conveying device (4), and a friction conveying device (4). And a weighting device (7) for pressing the paper sheet (1). The weighting device (7) is held in the holding portion (8) so as to be able to rotate in contact with the holding portion (8) provided adjacent to the transfer passage (2) and the friction transfer device (4), and the friction transfer. A sphere (6) holding the paper sheet (1) between the apparatus (4). When the central axis of the paper sheet (1) is displaced or inclined on the plane with respect to the longitudinal center axis of the transport path (2) and the paper sheet (1) is inserted into the transport path (2) The side edge (1a) of the paper sheet (1) sandwiched between the friction conveyance device (4) and the sphere (6) is in contact with the side wall (13) of the conveyance path (2), and the paper sheet At the same time as the class (1) is elastically deformed, a restoring force is generated on the sheet (1) to return to the initial shape. By this restoring force, the paper sheet (1) generates a reaction force in a direction in which the side edge is separated from the side wall (13), and the paper sheet (1) is aligned in the direction aligned with the central axis of the conveyance path (2). ) Moves. At this time, the sphere (6) in contact with the paper sheet (1) rotates in the holding unit (8) in any plane direction depending on the movement of the paper sheet (1). The frictional force between 1) and the sphere (6) is small, and the reaction force generated on the paper sheet (1) is larger than the frictional force with the sphere (6). Therefore, the paper sheet (1) moving in the direction to cancel the reaction force in the two-dimensional plane including the contact surface with the sphere (6) is automatically aligned and the length direction of the transport path (2) Align with the central axis.

  A paper sheet transport device that automatically aligns paper sheets in the transport path can be manufactured with a simple structure and at a low cost, and is transported in alignment with the transport path by an identification sensor provided at the back of the transport path. Leaves can be identified with certainty.

Sectional drawing along the length direction of the conveyance path which shows the partial cross section of the banknote conveying apparatus by 1st Embodiment of the paper sheet conveying apparatus by this invention, and the drive device used for a banknote conveying apparatus The top view of the banknote conveying apparatus shown in FIG. Sectional drawing of the banknote conveying apparatus along the center of the sphere shown in FIG. Sectional drawing which shows the contact state of the spherical body and friction conveying apparatus which are shown in FIG. A plan view showing a state in which the banknote is inserted into the transport passage by being inclined. The top view which shows the state which moved the banknote in the inclination state shown in FIG. 5 slightly in the back of the conveyance path | route. Sectional drawing which shows the modification of the contact state shown in FIG. The top view of the banknote conveying apparatus by 1st Embodiment of the paper sheet conveying apparatus by this invention Sectional drawing of the banknote conveying apparatus along the center of the sphere shown in FIG. Sectional drawing which follows the length direction of the banknote conveying apparatus shown in FIG. The top view which shows the state which inclines in the conveyance path of the banknote conveying apparatus shown in FIG. 8, and inserts a banknote. The top view which shows the state by which the banknote which inclines was conveyed slightly ahead with the friction conveyance apparatus The top view which shows the state which aligned the banknote slightly from the state of FIG. 12, moving a banknote in a conveyance path | route. The top view which shows the state which aligned the banknote slightly from the state of FIG. 13, moving a banknote in a conveyance path | route. The top view which shows the state which adjusted the banknote to the conveyance path completely, moving a banknote in a conveyance path The top view which shows the state which moved the banknote further in the conveyance path from the state of FIG.

  An embodiment of the present invention in which a paper sheet transport device according to the present invention is applied to a banknote transport device will be described below with reference to FIGS. As used herein, the term “paper sheets” refers to all documents having economic value such as banknotes, banknotes, coupons, money equivalent scrips or securities.

  FIGS. 1-7 shows 1st Embodiment of the banknote conveying apparatus by this invention. As shown in FIG. 1, the banknote transport apparatus of the present invention includes a transport path (2) and a transport apparatus (3) that transports a banknote (1) as a paper sheet inserted into the transport path (2). Prepare. The transfer passage (2) is formed by a resin or metal bottom wall (11), top wall (12) and side wall (13). The conveying device (3) includes a friction conveying device (4) rotatably provided in the conveying passage (2), a driving device (5) for rotationally driving the friction conveying device (4), and a friction conveying device (4). And a weighting device (7) for pressing the banknote (1). In the illustrated example, the friction conveyance device (4) includes a conveyance belt, but a conveyance roller that contacts the banknote (1) may be used instead of the conveyance belt.

  The weighting device (7) is held in the holding portion (8) so as to be able to rotate in contact with the holding portion (8) provided adjacent to the transfer passage (2) and the friction transfer device (4), and the friction transfer. A sphere (6) that holds the bill (1) between the device (4) and the device (4). As shown in FIGS. 1 and 3, the friction transfer device (4) is rotatably supported in a storage chamber (14) formed in the bottom wall (11) of the transfer device (3). The drive device (5) has a drive motor (20) that is drivingly connected to the friction transfer device (4) via a power transmission device (21) having a desired reduction ratio. The power transmission device (21) can be constituted by a gear train, a belt transmission device, or a combination thereof.

  On the top wall (12) of the transfer device (3) that forms the transfer path (2), a holding portion (8) for arranging the sphere (6) is provided. The holding portion (8) includes a cylindrical portion (8b) formed vertically, an inner spherical surface (8a) formed at the bottom of the cylindrical portion (8b), and an inner spherical surface (8a) in communication with the conveyance path (2). ) And an opening (8c) formed at the lower end. The sphere (6) is in contact with the inner spherical surface (8a) and can freely roll, slide or slide in all directions within the inner spherical surface (8a), i.e., can rotate, and be separated from the conveyance path (2). Can move in the direction. When the bill (1) comes into contact with the sphere (6), the sphere (6) freely rotates within the inner spherical surface (8a) depending on the moving direction of the bill (1). The banknote (1) sandwiched between the sphere (6) can move in any plane direction of 360 degrees from the contact surface with the sphere (6). In addition, the sphere (6) presses the bill (1) against the friction conveyance device (4) with a constant pressing force by its own weight on all spherical outer surfaces in contact with the bill (1). The sphere (6) that rolls and slides in the holding portion (8) has a significantly smaller frictional force against the banknote (1) than sliding, and when an external force is applied to the sphere (6) from below, the sphere (6 6) can move upward in the holding part (8).

  The conveying belt constituting the friction conveying device (4) is made of a resin material, and a rubber material having a large coefficient of friction is used on the surface in contact with the conveyed banknote and the sphere (6). When a conveying roller is used in the friction conveying device (4), a rubber material having a large friction coefficient is coated on the surface of the conveying roller. The sphere (6) is a comparatively light weight such as copper, titanium, aluminum, etc. in the structure in which the corrosion-resistant stainless steel, iron or iron alloy or the sphere (6) is pressed by the spring (15) toward the friction transfer device (4). These metals or their alloys or wear-resistant resin materials can be used.

  Since the inner diameter of the opening (8c) of the holding part (8) is smaller than the outer diameter of the sphere (6), the sphere (6) accommodated in the holding part (8) does not fall, and the holding part ( Although it is held in 8), it can move upward in the holding part (8). As shown in FIG. 4, the bottom of the sphere (6) protrudes downward into the transport passage (2) through the opening (8c) of the holding portion (8) and protrudes upward into the transport passage (2). While contacting the friction conveyance device (4), it also contacts the banknote (1) that contacts the friction conveyance device (4) through the conveyance path (2).

  A tapered surface (9) is formed on the side wall (13) that forms the inlet (16) of the transfer passage (2). A pair of inlet sensors (10) for detecting the banknote (1) inserted into the transport passage (2) is connected to the bottom wall (11) and the top wall (12) near the friction transport device (4). ). Although not shown, the entrance sensor (10) is constituted by a photocoupler having a light emitting element and a light receiving element for detecting light blocking by the banknote (1) passing through the transport passage (2). When the passage of the banknote (1) is detected by blocking the light emitted from the entrance sensor (10), the entrance sensor (10) generates a detection signal and drives a control device (not shown) that receives this detection signal. Since the device (5) is operated, the friction transfer device (4) is rotated. At this time, the sphere (6) comes into spherical contact with the rotating friction conveyance device (4) and rotates in the inner spherical surface (8a) of the holding portion (8), and is inserted into the conveyance passage (2). If spherical contact is made with (1), the sphere (6) rotates within the inner spherical surface (8a) of the holding portion (8) in conjunction with the movement of the bill (1) in any plane direction.

  In the embodiment shown in FIG. 4, the sphere (6) contacts the friction conveyance device (4) or the banknote (1) by its own weight, but the sphere (6) within the inner spherical surface (8a) of the holding portion (8). Even if the ball rotates, the pressing force of the sphere (6) against the friction transfer device (4) and the banknote (1) does not change. Further, the frictional force of the free-rotating sphere (6) on the bill (1) is smaller than the frictional force on the bill (1) of the friction transfer device (4).

  When the bill (1) is inserted into the transport passage (2) when the central axis of the bill (1) is displaced or inclined on the plane with respect to the longitudinal center axis of the transport passage (2), the friction transport device When the side edge (1a) of the banknote (1) sandwiched between (4) and the sphere (6) is in contact with the side wall (13) of the transport passage (2), the banknote (1) is elastically deformed. At the same time, a restoring force is generated on the bill (1) to return to the initial shape. With this restoring force, the banknote (1) generates a reaction force in the direction of separating the side edge (1a) from the side wall (13), and the banknote (1) in a direction aligned with the central axis of the transport path (2). Move. At this time, the sphere (6) in contact with the banknote (1) rotates in the holding section (8) in any direction depending on the movement of the banknote (1), so the banknote (1) and the sphere (6) The reaction force generated on the banknote (1) is larger than the friction force on the sphere (6). Accordingly, the bill (1) moving in the direction to cancel the reaction force in the two-dimensional plane including the contact surface with the sphere (6) is automatically aligned, and the posture of the bill (1) 2) Automatically aligned with the longitudinal center axis. As described above, according to the present invention, it is possible to manufacture a banknote transport apparatus that automatically aligns the banknote (1) in the transport path (2) with a simple structure and at a low cost.

  FIG. 7 shows that the friction transfer device (4) is rotatably attached to the top wall (12) of the transfer device (3), and a holding portion (8) is provided on the bottom wall (11) of the transfer device (3). (8) The spherical body (6) is disposed inside, and the spherical body (6) is pressed against the frictional conveying device (4) by the elastic force of the spring (15), which is an elastic body. 4 shows a modification of FIG. 4 in which a sphere (6) is brought into contact with a bill (1) passing between (6) and the sphere (6) and the friction transfer device (4) are arranged upside down. In the embodiment shown in FIG. 7, since the dead weight of the sphere (6) arranged below the friction transfer device (4) does not act on the bill (1), the sphere is formed by the spring (15) that generates a predetermined elastic force. (6) can be pressed upward, but when a downward external force is applied to the sphere (6), the sphere (6) can move upward against the elasticity of the spring (15). Also in this embodiment, the sphere (6) presses the bill (1) against the friction transfer device (4) with a constant pressing force on all spherical outer surfaces that contact the bill (1), and the sphere (6) The effect of is the same as that shown in FIGS.

  FIGS. 8 to 16 show a second embodiment in which two pairs of guide rollers (22) are rotatably attached to both side walls of the conveyance path (2) of the embodiment shown in FIGS. Indicates. In the second embodiment, a V-shaped or U-shaped annular groove (23) into which the edge of the banknote (1) is fitted is formed on the outer periphery of each guide roller (22), The side wall (13) of 2) is formed in a curved shape.

  As shown in FIGS. 11 to 16, the central axis of the banknote (1) is displaced with respect to the central axis in the length direction of the transport path (2), and the banknote (1) is inserted into the transport path (2). When the side edge of the banknote (1) is in contact with the guide roller (22), each guide roller (22) is aligned with the transport path (2) while rotating by contact with the banknote (1). Since the conveyance direction of the banknote (1) is smoothly corrected, the banknote (1) is finally easily aligned with the conveyance path (2) as shown in FIG. 15 and FIG. Arranged and transported.

  The present invention can be applied to various transport devices that transport paper sheets in alignment with a transport path.

  (1) ・ ・ Bills (paper sheets), (1a) ・ ・ Side edges, (2) ・ ・ Conveying passageway, (3) ・ ・ Conveying device, (4) ・ ・ Friction conveying device, (5) ・ ・(6) ·· Sphere, (7) · · Weighting device, (8) · · Holding part, (8a) · · Inner spherical surface, (8b) · · Cylindrical part, (8c) · · Opening part, (9) ・ ・ Taper surface, (10) ・ ・ Inlet sensor, (11) ・ ・ Bottom wall, (12) ・ ・ Top wall, (13) ・ ・ Side wall, (14) ・ ・ Containment chamber, (15)・ ・ Spring, (16) ・ ・ Inlet, (20) ・ ・ Drive motor, (21) ・ ・ Power transmission device, (22) ・ ・ Guide roller, (23) ・ ・ Annular groove,

Claims (17)

A conveyance path;
A transport device that transports paper sheets along the transport path,
The conveying device includes a friction conveying device rotatably provided in the conveying path, a driving device that rotationally drives the friction conveying device, and a weighting device that presses the paper sheet against the friction conveying device,
The weighting device includes a holding unit provided adjacent to the conveyance path, and a sphere that is held in the holding unit so as to rotate in contact with the friction conveyance device and sandwich the paper sheet between the friction conveyance device. Paper sheet conveying device characterized by the above.   The holding portion includes a cylindrical portion that is formed vertically, an inner spherical surface that is partially formed into a spherical shape in the cylindrical portion, and an opening that communicates the inner spherical surface with the conveyance path, and is held in the holding portion. The paper sheet conveying device according to claim 1, wherein the paper sheet conveying device projects into the conveying path through the opening.   The paper sheet transport apparatus according to claim 1, wherein the paper sheet transported along the transport path is sandwiched between the friction transport apparatus and the sphere.   The paper sheet according to claim 2 or 3, wherein the sphere freely rotates in all directions within the inner spherical surface of the holding portion, and the paper sheets can move in any plane direction of 360 degrees from the contact surface with the sphere. Conveyor.   The paper sheet conveying apparatus according to any one of claims 1 to 4, wherein the sphere can move away from the friction conveying apparatus or the paper sheet.   The paper sheet conveying apparatus according to any one of claims 1 to 5, wherein the spherical body rotates within the inner spherical surface of the holding portion when the paper sheet moves in any plane direction in the conveying path.   Even if the sphere rotates within the inner spherical surface of the holding portion, the pressing force of the sphere against the paper does not change, and the sphere is constant with respect to the friction conveying device on all spherical outer surfaces that contact the paper. The paper sheet conveying apparatus according to any one of claims 1 to 6, wherein the paper sheet is pressed with a pressing force of.   The paper sheet according to any one of claims 1 to 7, wherein the frictional force of the spherical body that rotates freely depending on the movement of the paper sheet is smaller than the frictional force of the friction conveying device on the paper sheet. Conveying device.   The paper sheet conveying apparatus according to any one of claims 1 to 8, wherein the spherical body is in spherical contact with the paper sheet.   The paper sheet conveying apparatus according to any one of claims 1 to 9, wherein the spherical body contacts the paper sheet by its own weight or an elastic force of an elastic body. A friction transfer device is rotatably arranged in a storage chamber formed on the bottom wall of the transfer passage,
The paper sheet transport apparatus according to any one of claims 1 to 10, wherein a spherical body is disposed in a holding portion provided on a top wall of the transport path. A friction transfer device is rotatably mounted in a storage chamber formed on the top wall of the transfer passage,
The paper sheet transport apparatus according to any one of claims 1 to 10, wherein a spherical body is disposed in a holding portion provided on a bottom wall of the transport path.   The paper sheet conveyance device according to any one of claims 1 to 12, wherein the friction conveyance device is a belt or a roller.   When the central axis of the paper sheet is displaced with respect to the central axis in the length direction of the transport path and the paper sheet is inserted into the transport path, at least a pair of guide rollers that contact the side edges of the paper sheet are transported The paper sheet transport apparatus according to any one of claims 1 to 13, which is rotatably attached to a side wall of the passage.   The paper sheet transport apparatus according to claim 14, wherein two pairs of guide rollers are rotatably attached to the side wall of the transport path.   The paper sheet transport apparatus according to any one of claims 1 to 15, wherein a tapered surface is formed on a side wall forming an entrance of the transport path.   An entrance sensor for detecting paper sheets inserted into the transport path is provided in the vicinity of the frictional transport device, and a detection signal is generated when the entrance sensor detects the paper sheets, and the drive device is operated by the detection signal. Item 17. The paper sheet conveying device according to any one of items 1 to 16.

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