JP2012224477A - Paper sheet medium separation roller, and medium handling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a phenomenon that an end face of a paper sheet medium is abutted on a boundary between a material of high friction coefficient and a material of low friction coefficient at an outer circumference of a roller, and rolled up.SOLUTION: Two projecting parts 2e having a groove 2d and an inclined surface are juxtaposed on one side of an outer circumference of a circular member having low friction coefficient constituting a roller. Projecting parts 3b, 3c are formed on both ends of an arc-shaped member of high friction coefficient. A chamfered inclined surface is formed on a top part of each projecting part and outer circumferential surfaces on both sides of each projecting part. Each projecting part of the arc-shaped member is inserted in the groove of the circular member, and integrally constituted. The border line of both members in the direction orthogonal to the conveying direction of the paper sheet medium is divided. The inclined surfaces of the projecting parts of both members are across each other so that the steps in the outside diameter direction of both members are smoothly continuous.

Description

  The present invention is a ticket issuing device for issuing boarding tickets for aircraft, seat reservation tickets for trains, various types of reservation tickets, processing information, and exchanging and issuing tickets for reservation tickets, etc. The present invention relates to a paper sheet medium separating roller of a partial friction method of a paper sheet medium separating unit in a paper sheet medium handling apparatus such as a cash processing apparatus having a deposit / withdraw processing function.

Generally, there are two types of separation rollers for the sheet medium separation unit, in which a material with a high friction coefficient such as rubber is used for a part of the outer periphery of the roller, and the remaining part is a resin material or a metal material with a low friction coefficient A separation roller having a partial rubber structure in which materials of the above materials are combined is used.
An example of a conventional structure will be described with reference to FIGS.
A plurality of bosses 12 are fixed to the shaft 11 by pins (not shown).

Each of the bosses 12 is fitted with a roller rubber 13 to constitute a feed roller assembly. The feed roller assembly has a structure in which both ends are supported by a frame (not shown) via bearings and rotated by receiving a drive from a drive transmission unit (not shown).
At both ends of the shaft 11, there are provided a step 11 a and a projection 11 b that determine the position of the feed roller assembly in the axial direction by a bearing (not shown).

FIG. 8 is an explanatory diagram of each of the boss 12 and the roller rubber 13.
The boss 12 is provided with a hole 12a through which the shaft 11 passes and a hole 12b which is fixed to the shaft 11 by driving a pin. Further, there is a projection 12c for fitting the roller rubber 13. The roller rubber 13 is assembled to the boss 12 by fitting the locking hole 13a into the projection 12c, as shown in FIGS. 7 and 9, and the joint between the roller rubber 13 and the boss 12 is assembled. A boundary 14 is formed on the substrate (for example, see Patent Document 1).

Japanese Patent No. 3928757

  However, in the above-described conventional technology, when the paper sheet medium is separated and transported, the boundary between the rubber and the resin or metal part on the outer periphery of the roller rotating in the paper sheet transport direction is the paper sheet. When it hits the end surface of the medium, there is a problem that the end surface of the paper sheet medium rolls up and damages the paper sheet medium. In particular, when the paper sheet medium contains moisture in a humid environment and becomes soft, it is more likely to occur.

In the passenger traffic field, a magnetic stripe is provided on the back surface of a medium, and a magnetic stripe is printed by printing a two-dimensional barcode such as a QR code (registered trademark) holding information from a magnetized medium provided with magnetized information. Inexpensive and inexpensive tickets are becoming popular. Since such a ticket does not need to be provided with a magnetic stripe, the number of users who use inexpensive ticket base paper has increased, and the quality of the paper sheet medium itself has become a low-strength medium. Because of.
An object of the present invention is to solve such a problem.

  Therefore, the present invention provides a sheet medium separation roller in which a material having a high friction coefficient is used for a part of the outer periphery of the roller and a combination of two types of members in which the remaining part is a material having a low friction coefficient. On one side of the outer circumference of one member constituting the roller, a groove and two convex portions having slopes arranged in the groove are provided at an interval, and convex portions are formed on both ends of the other member. A direction in which a slope is formed on the outer peripheral surface of the top part of the convex part and on both sides of the convex part, the convex part of the other member is fitted in the groove of the one member, and the direction is perpendicular to the conveyance direction of the sheet medium The boundary of the joint portion between the two members is divided by the groove and the convex portion, and the slopes of the convex portions of the two members are inserted into each other so that the steps in the outer diameter direction of the two members are connected. It is characterized by that.

  The present invention as described above is such that the boundary between the joint portion of the member having a high friction coefficient and the member having a low friction coefficient is stepped by a groove and a convex portion with respect to the fed paper sheet medium. By forming and connecting the steps in the outer diameter direction of both members, the boundary between the joints of both members contacts the end surface of the sheet medium not only in a normal temperature and humidity environment but also in a humid environment. Even in this case, it is possible to obtain a stable separation roller that does not scoop up the end face and does not damage the paper sheet medium.

Explanatory drawing which shows the feed roller assembly of Example 1. FIG. Illustration of boss and roller rubber Plane explanatory diagram showing how the boss and roller rubber are fitted Schematic explanatory diagram of a ticket issuing device to which a paper sheet media separating roller is applied Explanatory drawing of the roller rubber of Example 2 Plane explanatory diagram showing how the boss and roller rubber are fitted Explanatory drawing showing a conventional feed roller assembly Illustration of boss and roller rubber Plane explanatory diagram showing how the boss and roller rubber are fitted

Embodiments according to the present invention will be described below with reference to the drawings.

FIG. 1 is an explanatory diagram illustrating the first embodiment. In the figure, 1 is a shaft, and a plurality of bosses 2 are fixed by pins (not shown). Each of the bosses 2 is fitted with a roller rubber 3 to constitute a feed roller assembly. The feed roller assembly has a structure in which both ends are supported by a frame (not shown) via bearings and rotated by receiving a drive from a drive transmission unit (not shown).
At both ends of the shaft 1, there are provided a step 1 a and a protrusion 1 b that determine the position of the feed roller assembly in the axial direction by a bearing (not shown).

FIG. 2 is an explanatory diagram of each of the boss 2 and the roller rubber 3.
The circular boss 2 is provided with a hole 2a through which the shaft 1 passes and a hole 2b which is fixed to the shaft 1 by driving a pin. Further, there is a protrusion 2c for fitting the roller rubber 3.
The generally arc-shaped roller rubber 3 is assembled to the boss 2 by fitting the locking hole 3a into the protrusion 2c.
Further, the boss 2 is formed with a groove 2d and a convex portion 2e having an inclined surface centered on the hole 2a, and the groove 2d and the convex portion 2e having the inclined surface are provided at two positions separated by a predetermined angle. Is formed. In the case of the present embodiment, the convex portion 2e having the groove 2d and the inclined surface and the convex portion having the other groove and the inclined surface are positioned 180 degrees apart. Accordingly, the apexes of the convex portions 2e on both sides of the grooves 2d are gently tied to the outer shape of the boss 2 without being sharpened at an acute angle by the slope.

Further, the roller rubber 3 is formed with convex portions 3b and 3c at the center of both ends, and the crests 3d and 3e by large chamfering are applied to the tops of the convex portions 3b and 3c and the outer peripheral surfaces on both sides of the convex portions 3b and 3c. Has been.
When the engaging hole 3a of the roller rubber 3 is fitted into the protrusion 2c of the boss 2, the protrusions 3b and 3c of the roller rubber 3 are fitted into the groove 2d of the boss 2 and the other groove as shown in FIG. The protrusions 3b and 3c of the roller rubber 3 and the protrusions 2e having the slopes of the bosses 2 have a nested structure that is positioned in a state in which the respective front parts are inserted so as to cross each other.

  FIG. 3 shows a state in which the roller rubber 3 and the boss 2 are assembled in this nested state as viewed from the front of the roller outer periphery. Thereby, it turns out that the boundary of the junction part of the roller rubber 3 and the boss | hub 2 is divided | segmented. In this embodiment, the boundary 5a and the boundary 5b on both sides have the same length, and the sum of the boundaries 5a and 5b and the boundary 5c are set to the same length. This is because the roller rubber 3 can be assembled without having any directionality when the roller rubber 3 is assembled, and an assembly error is prevented. Therefore, the boundary does not necessarily need to be in this manner, the lengths of the boundaries on both sides may be different, and the sum of the boundaries on both sides may not be equal to the length of the middle boundary.

FIG. 4 is a schematic explanatory diagram of a ticket issuing device to which the paper sheet separation roller of the present application is applied.
Spaces are provided for storing the single-sheet-shaped paper sheet medium 101 and the roll-shaped medium 102, respectively, a cutter 103 that cuts the roll-shaped medium 102 into a predetermined-length paper sheet medium, and a printing unit 104 that prints on the surface of the medium. In addition, a magnetic unit 105 for writing or reading magnetized information and an insertion / discharge unit 106 for collecting processed media and discharging a single sheet or a bundle are provided.
In addition, there is a forgetting taking-in capturing unit 107 that takes in a discharged paper sheet medium into the apparatus when the operator forgets to take it out.

The insertion / ejection unit 106 is provided with a shutter and an inhalation detection mechanism (not shown) in order to perform processes such as magnetic reading / writing and additional printing on the medium inserted one by one.
Further, in order to perform predetermined processing in accordance with a higher-level instruction (not shown) on the inserted medium, an additional printing unit 108, a collection stacker unit 109, and blades 110a and 110b for switching the destination of the inserted medium according to the instruction are provided.

The storage unit for the sheet medium 101 includes a stage 111 that is controlled by a control mechanism (not shown) at a predetermined position where the sheet medium on the upper surface is pressed against the picker roller 112.
A feed roller assembly 100 and a gate roller 113 that constitute a transport roller are arranged in the transport direction of the paper sheet storage unit to prevent a plurality of paper sheet media from being transported.
According to the ticket issuing apparatus having such a configuration, the stage 111 on which the paper sheet medium 101 is loaded presses the paper sheet medium 101 against the picker roller 112 by a drive mechanism and position control (not shown).

Therefore, the picker roller 112 is rotated in the transport direction and transported to the feed roller assembly 100 and the gate roller 113 constituting the next transport roller.
In this embodiment, the picker roller 112 also uses a partial rubber structure like the feed roller assembly 100, and the partial rubber position of the picker roller 112 in the rotation direction and the partial rubber position of the feed roller are rotated together. This is because the picker roller 112 brought into pressure contact with the paper sheet medium is rotated in the separating direction, fed by a rubber part having a high friction coefficient on the outer periphery of the roller, passed to the next feed roller assembly 100, and then pressed against the paper sheet medium. This is because the sheet medium is not fed at the outer peripheral portion having a low friction coefficient, so that the second sheet medium is separated and fed without being fed out continuously with the first sheet.

As shown in FIG. 3, in this embodiment, for the paper sheet fed out, the roller rubber 3 having a high friction coefficient and the joint portion of the boss 2 made of a synthetic resin or metal having a low friction coefficient (made of a synthetic resin in this embodiment) are used. The boundary touches in order by 50% compared to the prior art shown in FIG.
According to the present embodiment described above, the boundary between the roller rubber having a high coefficient of friction and the boss of the material having a low coefficient of friction is formed in a stepwise manner on the paper sheet medium fed out, and the outer diameters of the rollers of both materials are By gradually connecting the direction steps, the end face is raised not only in the normal temperature and normal humidity environment but also in the humid environment, even if the boundary between the roller rubber and the boss contacts the end face of the paper sheet medium. And a stable separation unit that does not damage the paper sheet medium.

In the present embodiment, as shown in FIG. 5, a convex arc 3f having a V-shape and a chamfered slope toward the tip is formed on both ends of a generally arc-shaped roller rubber 3.
Although not shown in the figure, the boss 2 has a V-shaped groove corresponding to the V-shaped convex portion 3f of the roller rubber 3 formed along with the convex portions 2f and 2g having inclined surfaces, and is 180 degrees centering on the hole of the boss passing through the shaft. As in the above embodiment, the apexes on both sides of the boss groove are gently connected to the outer shape without sharp edges. Further, the V-shaped convex portion 3f of the roller rubber 3 and the convex portions 2f and 2g provided on the boss 2 corresponding to the base of the V-shaped convex portion 3f can maintain the strength in the conveyance direction of the sheet medium. A minimum horizontal portion is provided and a chamfer is formed by chamfering, and the boundary 5 of the joint portion is V-shaped in such a state that the both slopes enter each other.

  Therefore, as shown in FIG. 6, by fitting the locking hole 3a of the roller rubber 3 to the convex portion 2c of the boss 2, the V-shaped convex portion 3f is integrated into the V-shaped groove of the boss 2 and becomes integral. And the roller rubber 3 have the same height in the outer diameter direction, and are smoothly connected to each joint end so as not to cause a step due to a chamfered slope.

According to the embodiment described above, the V-shaped convex portion of the roller rubber fits into the V-shaped groove of the boss, and the convex portion along the V-shaped convex portion of the roller rubber and the V-shaped groove of the boss As a result, the boundary between the boss and the roller rubber changes smoothly, and even in a humid environment, even if the boundary between the roller rubber and the boss contacts the end surface of the paper sheet medium, the end surface is not lifted up. A stable separation portion that does not damage the medium can be obtained.
Although the embodiment of the present invention has been described by taking the feed roller of the separation unit that separates and conveys the paper sheet medium as an example, the present invention is not limited to the feed roller, and is configured by combining two or more types of materials such as a picker roller. It is possible to apply to all the conveyance rollers.

DESCRIPTION OF SYMBOLS 1 Shaft 1a Level | step difference 1b Protrusion 2 Boss 2a Hole 2b Hole 2c Protrusion 2d Groove 2e Convex part 2f, 2g Convex part 3 Roller rubber 3a Locking hole 3b, 3c Convex part 3d Inclination 3e Inclination 3f Convex part 100 Feed roller assembly 101 Paper sheet medium DESCRIPTION OF SYMBOLS 102 Roll-shaped medium 103 Cutter 104 Printing part 105 Magnetic part 106 Insertion and discharge part 107 Forgetting taking-in part 108 Additional printing part 109 Collection stacker part 110a, 110b Blade 111 Stage 112 Picker roller 113 Gate roller

Claims (2)

In the paper sheet medium separation roller, which uses a material having a high friction coefficient for a part of the outer periphery of the roller and a combination of two types of materials in which the remaining part has a low friction coefficient,
On one side of the outer circumference of one member constituting the roller, two grooves are provided at intervals with a groove and a convex portion having a slope arranged in the groove,
Protrusions are formed on both ends of the other member, and slopes are formed on the outer peripheral surfaces on the top and both sides of the protrusions,
The groove of the one member is integrated with the convex portion of the other member, and the boundary between the two members in the direction orthogonal to the paper sheet conveyance direction is bounded by the groove and the convex portion. A paper sheet separation roller characterized in that the line is divided and the slopes of the convex portions of both members are inserted into each other so that the steps in the outer diameter direction of both members are connected. In a medium handling apparatus provided with a sheet medium separation roller formed by combining two kinds of materials, using a material having a high friction coefficient for a part of the outer periphery of the roller and the rest of the material having a low coefficient of friction,
On one side of the outer periphery of one member constituting the roller, a groove and two convex portions having slopes arranged in the groove are provided at an interval, and convex on both ends of the other member constituting the roller. Forming a slope, forming a slope on the outer peripheral surface of the top of this convex part and both sides of the convex part,
The groove of the one member is integrated with the convex portion of the other member, and the boundary between the two members in the direction orthogonal to the paper sheet conveyance direction is bounded by the groove and the convex portion. 2. A medium handling apparatus comprising a sheet medium separation roller configured to divide a line and to insert the slopes of the convex portions of both members into each other so that the steps in the outer diameter direction of both members are connected.

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