Medium transferring apparatus and financial device

1. A medium transferring apparatus comprising:

a plurality of side guides constituting both side surfaces of a medium transferring path;

one or more transfer rollers rotatable between the side guides, and transferring a medium in a medium transferring direction; and

one or more aligning rollers aligning the medium in a direction inclined from the medium transferring direction;

wherein the one or more transfer rollers rotate in the medium transferring direction in a region contacting the medium;

wherein the one or more aligning rollers rotate in a direction inclined at a certain angle from the medium transferring direction in a region contacting the medium; and

wherein the one or more aligning rollers are disposed at an upstream of the one or more transfer rollers in the medium transferring direction, and a rotation speed of the one or more aligning rollers is faster than that of the one or more transfer rollers.

2. The medium transferring apparatus of claim 1 , wherein the one or more transfer rollers comprise a first transfer roller and a second transfer roller disposed at a downstream of the first transfer roller in the medium transferring direction, and

the one or more aligning rollers are disposed between the first transfer roller and the second transfer roller.

3. The medium transferring apparatus of claim 2 , wherein a distance between the second transfer roller and the aligning roller is equal to or greater than a length of the medium in the medium transferring direction.

4. The medium transferring apparatus of claim 1 , further comprising:

a transfer shaft on which the one or more transfer rollers are installed; and

an aligning shaft on which the one or more aligning rollers are installed, the aligning shaft being inclined at a certain angle from the transfer shaft.

5. The medium transferring apparatus of claim 1 , wherein the one or more aligning rollers comprise:

a first aligning roller rotating in a position inclined at a certain angle from the medium transferring direction, in a region contacting the medium; and

a second aligning roller rotating in the medium transferring direction, in a region contacting the medium.

6. The medium transferring apparatus of claim 5 , wherein the first aligning roller is spaced apart from the second aligning roller in a direction perpendicular to the medium transferring direction.

7. The medium transferring apparatus of claim 5 , further comprising:

a first aligning shaft on which the first aligning roller is installed; and

a second aligning shaft on which the second aligning roller is installed,

wherein the second aligning shaft is parallel to a transfer shaft of the one or more transfer rollers, and

the first aligning shaft is inclined at a certain angle from the second aligning shaft and the transfer shaft.

8. The medium transferring apparatus of claim 7 , wherein the one or more transfer rollers comprise a first roller and a second roller, which are arrayed in a direction perpendicular to the medium transferring direction, and which rotate in the medium transferring direction in a region contacting the medium, and

pressure applied on the medium by the second roller disposed in a position corresponding to the second aligning roller is smaller than that applied by the first roller.

9. The medium transferring apparatus of claim 8 , wherein idle rollers are disposed in positions corresponding to the first roller and the second roller, respectively, and

a distance between the second roller and an idle roller disposed in position corresponding to the second roller is greater than a distance between the first roller and an idle roller disposed in position corresponding to the first roller.

10. The medium transferring apparatus of claim 1 , further comprising a transfer belt that is rotatable at a downstream of the one or more aligning rollers in the medium transferring direction, and is wound around two or more rollers.

11. The medium transferring apparatus of claim 1 , further comprising upper/lower guides that are parallel to the medium transferring direction, and constitute top and bottom surfaces of the medium transferring path.

12. The medium transferring apparatus of claim 11 , wherein a distance between the one or more transfer rollers and the one or more aligning rollers is determined such that a height of a curl formed on the medium is less than a distance between the upper/lower guides when the one or more transfer rollers and the one or more aligning rollers simultaneously transfer the medium.

13. The medium transferring apparatus of claim 11 , wherein a distance between the upper/lower guides is determined to be greater than a height of a curl formed on the medium when the one or more transfer rollers and the one or more aligning rollers simultaneously transfer the medium.

14. A financial device comprising a medium transferring apparatus for transferring a medium,

wherein the medium transferring apparatus comprises:

a plurality of side guides constituting both side surfaces of a medium transferring path;

one or more transfer rollers rotatable between the plurality of side guides, and transferring the medium in a medium transferring direction; and

one or more aligning rollers rotating in a rotation direction different from that of the one or more transfer rollers, to align the medium on one of the plurality of side guides,

wherein the one or more aligning rollers comprise:

a first aligning roller rotating in a position inclined at a certain angle from the medium transferring direction, in a region contacting the medium;

a second aligning roller rotating in the medium transferring direction, in a region contacting the medium;

a first aligning shaft on which the first aligning roller is installed; and

a second aligning shaft on which the second aligning roller is installed;

wherein the second aligning shaft is parallel to a transfer shaft of the one or more transfer rollers, and

the first aligning shaft is inclined at a certain angle from the second aligning shaft and the transfer shaft.

15. The financial device of claim 14 , wherein the medium transferring apparatus further comprises a transfer belt that is disposed at a downstream of the one or more aligning rollers in the medium transferring direction, and removes a curl formed on the medium while being aligned.

16. The financial device of claim 14 , wherein the medium transferring apparatus further comprises an upper guide and a lower guide, which extend in the medium transferring direction, and constitute top and bottom surfaces of the medium transferring path, and

a distance between the upper guide and the lower guide is determined to be greater than a height of a curl formed on the medium when the one or more transfer rollers and the one or more aligning rollers simultaneously transfer the medium.