JPH04208478A - Medium conveyor - Google Patents

Abstract

PURPOSE:To prevent gradual staining of the surface of a passbook by arranging irregular surfaces such that reciprocal recesses and projections face each other when at least a medium is not being conveyed. CONSTITUTION:At an initial state where a passbook 1 is not conveyed, first rollers 2a, 2b and second roller 7a, 7b are contacted to each other such that recesses and projections thereof face each other. When the passbook 1 is conveyed, the passbook 1 abuts against the contacted part of the first rollers 2a, 2b and the second rollers 7a, 7b. The first rollers 2a, 2b are pushed upward with center at a rocking shaft 5 against the conveying force so as to insert the passbook 1 between the first rollers 2a, 2b and the second rollers 7a, 7b. The passbook 1 receives pressing forces from the first rollers 2a, 2b and the second rollers 7a, 7b and is conveyed by rotating driving force of the second rollers 7a, 7b.

Description

[Detailed description of the invention]

[Object of the invention 1 [00011

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medium conveyance device, and more particularly to a medium conveyance device for conveying printed matter such as a bankbook. [0002] [0002] As a conventional medium conveyance device, for example, an automatic teller machine (ATM) in a bank is used.
An example of this is a passbook conveyance device using a 1ler Machine. This device has a structure in which a passbook is held between rollers and the passbook is conveyed in a predetermined direction by rotationally driving the rollers. [0003]L However, since details of monetary transaction records are printed on the recording surface of the passbook, if the conveyor is used to frequently transport passbooks, the ink from the passbook recording surface may adhere to the roller surface. Resulting in. This ink re-adheres to the other opposing roller when the passbook is not conveyed, and as a result, the ink is transferred to the front cover (or back cover) of the passbook when the passbook is conveyed next time. Therefore, each time the device is used, the cover of the passbook gradually becomes dirty. Deteriorating the appearance of the passbook leads to a loss of service to users, which is undesirable from a practical standpoint. [0004] In response to these problems, current efforts are being made to clean the roller surface more frequently to prevent ink transfer, but this results in the temporary suspension of use of the device, resulting in a decline in service to users. cannot be avoided. Further, maintenance efforts are required. [00051

[Problems to be Solved by the Invention] As described above, in the conventional media conveying device, ink from the passbook recording surface adheres to the roller surface for conveying the passbook, and this ink is transferred to the cover of the passbook. Put it away. Therefore, each time the device is used, the cover of the passbook becomes progressively soiled. [0006-1] The present invention has been made to solve these conventional problems, and aims to provide a medium conveyance device that does not transfer ink to the cover of a bankbook. [Structure 1 of the Invention [0007] [Means for Solving the Problems] In order to achieve the above object, the present invention includes a press-contact unit that pinches and presses a printed medium, and a press-contact unit that drives the press-contact unit. In the medium conveyance device, the pressure contact portions face each other with uneven surfaces, and at least when the medium is not conveyed, the concave and convex portions of the uneven surfaces face each other. The media transport device is arranged as follows. [0008]

[Operation] With the medium transport device configured as above, when the medium is transported, the ink on the surface of the medium is transferred to the pressure contact part (
(Roller) Adheres to the convex parts of the surface. After the media has finished transporting,
When this roller comes into contact with the opposing roller, in the present invention, the concave portions and convex portions of each other come into contact with each other. Then, the ink will adhere to the recesses of the opposing rollers, so
As a result, no ink is transferred to the cover of the media. [0009]

Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of essential parts of a medium conveyance device according to a first embodiment of the present invention, and FIG. 2 is a sectional view taken along line A-A in FIG. 1. [00101 In this embodiment, a bankbook 1, which is a medium, is shown being transported from the X direction in FIG. The passbook 1 is conveyed along a conveyance path (not shown), with its recording surface 1a facing upward in the figure. For example, details of monetary transaction records are written on the bookkeeping surface 1a. [0011] First rollers 2a and 2b having a plurality of irregularities on their surfaces are arranged at positions facing the bookkeeping surface 1a. These irregularities consist of grooves formed in the axial direction of the first rollers 2a, 2b. First rollers 2a, 2
b is fixed to the first shaft 3. The first shaft 3 has both ends rotatably supported by one end of each arm 4a, 4b, and the other end of each arm 4a, 4b is fixed to a swing shaft 5. The swing shaft 5 is rotatably supported by a chassis (not shown), and the first rollers 2a, 2b are swingable around the swing shaft 5. In addition, the first axis 3
A first gear 6 is fixed to the end of the gear. [0012] On the other hand, on the opposite side of the passbook 1, that is, at a position facing the cover of the passbook 1, there is a second plate having a plurality of irregularities on the surface.
rollers 7a and 7b are arranged. These irregularities are
It consists of grooves formed in the axial direction of the second rollers 7a, 7b. The second rollers 7a, 7b are fixed to a second shaft 8, and are rotationally driven by a driving means (not shown). A second gear 9 is fixed to the end of the second shaft 8,
It meshes with a first gear 6 fixed to the first shaft 3. Further, the pressure contact force is always applied to the first rollers 2a, 2b in the direction of the second rollers 7a, 7b.
Arms 4a and 4b are biased by springs or the like. Note that shifted gears are used for the first gear 6 and the second gear 9. [00131 As shown in FIG. 2, the first rollers 2a, 2
b and the second rollers 7a, 7b are always positioned and driven so that their concave portions and convex portions face each other. In order to drive for positioning such that the concave portion and the convex portion always face each other, for example, the concave and convex portions of the first rollers 2a, 2b and the number of teeth of the first gear 6 must be made the same, and at the same time, the number of teeth of the first gear 6 must be made the same. One method is to make the unevenness of the rollers 7a, 7b and the number of teeth of the second gear 9 the same. Also, rollers 2, 7 and gears 6, 9
When fixing the rollers and gears to the shafts 3 and 8, it is desirable to fix the rollers and gears so that their phases match. The operation of this embodiment having the above configuration will be explained. [0014] First, in an initial state in which the bankbook 1 is not conveyed, the first rollers 2a, 2b and the second rollers 7a, 7b are in contact with each other such that their concave portions and convex portions face each other. When the passbook 1 is conveyed in the X direction, the passbook 1 is moved by the first rollers 2a, 2b and the second roller 7a.
, 7b. The first
The rollers 2a, 2b are pushed upwards about the swing shaft 5, and as a result, the first rollers 2a, 2b and the second roller
The passbook 1 is inserted between the rollers 7a and 7b. The passbook 1 has first rollers 2a, 2b and second rollers 7a, 7b.
The second roller 7a,
Conveyance in the X direction is continued by the rotational driving force of 7b. Note that there is a first roller 2 on the recording surface 1a of the passbook 1.
The protrusions a and 2b are in contact with each other. [0015] Then, when the passbook 1 passes between the first rollers 2a, 2b and the second rollers 7a, 7b, the first rollers 2a, 2b and the second rollers 7a, 7b again close their recesses. and the convex portion come into contact with each other so as to face each other. Thereafter, the same operation is repeated when the next passbook is conveyed. [00161] By performing such an operation in this embodiment, only the convex portions of the first rollers 2a and 2b come into contact with the recording surface 1a of the bankbook 1 when the bankbook 1 is conveyed. After the passbook 1 is conveyed, the first rollers 2a, 2b come into contact with the second rollers 7a, 7b, but at this time, the convex portions of the first rollers 2a, 2b touch the second roller 7a. , 7b, and the convex portions do not come into contact with each other. In other words, the ink on the recording surface 1a of the passbook 1 is first
It adheres to the convex portions of the second rollers 2a, 2b, and then to the concave portions of the second rollers 7a, 7b. However, even when the next passbook is conveyed, the ink from the previous passbook 1 is not transferred to the cover of this passbook. This solves the problem of poor appearance of the passbook. [0017] In order to position the first rollers 2a, 2b and the second rollers 7a, 7b so that their concave portions and convex portions face each other, the concave and convex portions of the rollers 2, 7 and the gear 6, 9 and the number of teeth may be the same, or one may be configured to be an integral multiple of the other. In this case as well, roller 2
．． 7 and gears 6 and 9 to the shaft 3.8, if the rollers and gears are fixed in phase with each other, the gears 6 and 9 can simply be fixed to the shaft 3.8.
．． The concave portion and the convex portion can be easily opposed by simply positioning them so that the portions 9 engage with each other. [0018] Note that the first gear 6 and the second gear 9 have the following:
Since shifted gears are used, the first rollers 2a, 2
Even if the distance between the first gear 6 and the second rollers 7a, 7b changes, the first gear 6 and the second gear 9 can mesh smoothly. [0019] Next, other embodiments of the present invention will be described. Note that the same components as those in the first embodiment are given the same numbers, and detailed explanations will be omitted. Further, in some embodiments, the gear 6 is omitted. [00201 FIG. 3 is a perspective view of the main parts of a medium transport device according to a second embodiment of the present invention. In this embodiment, flat portions 10 and 1 having the same diameter as the convex portion are provided near the end face of the roller 2°7.
1 is provided. The rollers 2, 7 have their flat parts 10, 1
1 are arranged so as to face each other in a state where they are removed from the edge of the passbook 1. [00213 In this embodiment having such a configuration, the rollers 2 and 7 are always kept on their flat parts 10 and 1 when the passbook 1 is conveyed.
1 are in contact with each other. Therefore, the concave portions and convex portions of the rollers 2, 7 do not mesh with each other, and the first rollers 2a, 2b can be quickly pushed upward when the bankbook 1 is carried in. [0022] Also, as in the third embodiment shown in FIG.
The rollers 2, 7 provided with flats 10.11 may be placed in a position in full contact with the bankbook 1. In this case as well, the same effects as in the second embodiment can be obtained. In addition, even if a high pressure contact force is applied during conveyance of the passbook 1, the flat parts 10 and 11 of the rollers 2 and 7 absorb this pressure contact force, so that the passbook 1 is in contact with the rollers 2 and 7 when the passbook 1 is conveyed. This prevents deformation due to contact with. This increases the holding power of the bankbook 1 and makes it difficult for the bankbook 1 to undergo uneven deformation. Note that, as in this embodiment, the flat portion 10
．． In the configuration in which the flat portion 10.11 is brought into contact with the passbook 1, it is desirable that the flat portion 10.11 is located outside the printing area of the passbook 1. Subsequently, the fourth aspect of the present invention
An example will be described with reference to FIG. [0023] In this embodiment, a timing belt 12 having a plurality of irregularities formed on the inner circumference is used, and the timing belt 12 adjusts the phase of the irregularities between the rollers 2 and 7. Note that the timing belt 12 is attached to the shaft 3
．． The pulleys 13 and 14 are fixed to the pulley 8 and have a plurality of projections and depressions formed on the outer periphery of the pulleys 13 and 14. Further, a roller 15 is in contact with the timing belt 12, and is configured to apply a predetermined tension to the timing belt 12. The roller 15 is connected to the first roller 2 when the passbook 1 is carried in.
It is possible to finely adjust the tension of the timing belt 12 within a range that allows timing belts a and 2b to be pushed upward. Next, a fifth embodiment of the present invention will be described with reference to FIGS. 6 and 7. [00241 First rollers 2a, 2b in this embodiment
Grooves are formed along the circumferential direction of the second rollers 7a and 7b, and uneven portions are formed by these grooves. As is clear from FIG. 7, which is a cross-sectional view taken along line B-B in FIG.
are arranged so that the concave portion and the convex portion thereof face each other. The phase alignment between the concave portion and the convex portion is achieved by using rollers 2 and 7 on the shafts 3 and 8.
It is only necessary to accurately position both in the axial direction when fixing them. In addition, here, the rollers 2 and 7 are provided with the flat portions 10 described above.
．． 11 is formed, but it is not necessarily necessary to form it. [o o 25] According to this embodiment, unlike each of the embodiments described above, when the passbook 1 is conveyed, the first roller 2a,
Even if roller 2b moves upward, the phase relationship between the concave portions and convex portions of rollers 2 and 7 does not change at all. Therefore, reliability is greatly improved in terms of preventing ink transfer. [0026] Further, other effects of this embodiment include the following. In general, in ATMs and the like, a printing mechanism that prints predetermined transaction records on a passbook also serves as a printing mechanism for billing statements. On the other hand, the outlet for the passbook and the billing statement are generally different. That is, after printing the charge statement, it is necessary to move the charge statement to another take-out mechanism. (00271 In this embodiment, when the medium is transported in a direction perpendicular to the transport direction, the unevenness between the rollers 2 and 7 is smoothed by slightly moving the rollers 2a and 2b (or rollers 7a and 7b) in the axial direction. (Fig. 8). This makes it possible to ensure that the rollers 2 and 7 are in pressure contact with the medium, and to perform stable transport in the orthogonal direction. In particular, it is possible to This method has a remarkable effect on thin media.As a method for minutely moving the roller in the axial direction, driving the shaft using a piezoelectric element or the like can be cited. In the following, we took a roller as an example of a member that presses the bankbook 1, but instead of a roller, a belt may be used to press and convey the bankbook.In this case, the belt can be conveyed in either the driving direction of the belt or the direction perpendicular to the driving direction. Grooves may be formed.Furthermore, the grooves formed on pressure contact members such as rollers and belts do not need to be formed in a straight line, and may be formed in a spiral shape, for example. ]

As described above, according to the medium conveyance device of the present invention, ink on the surface of the medium is not transferred to the cover of the medium.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a main part of a medium transport device according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA in FIG. 1.

FIG. 3 is a perspective view of a main part of a medium transport device according to a second embodiment of the present invention.

FIG. 4 is a perspective view of essential parts of a medium transport device according to a third embodiment of the present invention.

FIG. 5 is a perspective view of a main part of a medium transport device according to a fourth embodiment of the present invention.

FIG. 6 is a perspective view of a main part of a medium transport device according to a fifth embodiment of the present invention.

7 is a sectional view taken along line BB in FIG. 6. FIG.

8 is a sectional view taken along line BB in FIG. 6. FIG.

[Explanation of symbols]

1 Passbook (media) 2 Roller (pressing part) 6 Gears 7 Roller (pressing part) 9 Gear 10 Flat part 11 Flat part 12 Timing belt

Claims (6)

[Claims] Claims: 1. A media conveying device comprising: a press-contact part that pinches and presses a printed medium; and a drive unit that drives the press-contact part to transport the medium in a predetermined direction, wherein the press-contact part has an uneven surface. A medium conveyance device, wherein the concave and convex surfaces are arranged such that concave portions and convex portions thereof face each other, at least when the medium is not conveyed. 2. The medium conveying device according to claim 1, wherein the pressure contact portion comprises a rotatable roller. 3. The medium conveying device according to claim 2, wherein the uneven surface of the roller comprises a groove extending in the axial direction of the roller. 4. The medium conveying device according to claim 2, wherein the uneven surface of the roller comprises a groove extending in a circumferential direction of the roller. 5. The medium transport device according to claim 1, wherein the pressure contact portion has a flat portion formed in a portion thereof with approximately the same radius as the convex portion. 6. The medium transport device according to claim 4, wherein the roller is movable in an axial direction.