Medium separation device of ATM

Patent metadata

Field	Value
Publication number	US-9481533-B2
Application number	US-201514737181-A
Country	US
Kind code	B2
Filing date	Jun 11, 2015
Priority date	Jun 12, 2014
Publication date	Nov 1, 2016
Grant date	Nov 1, 2016

Abstract

The invention relates to a medium separation device of an automated teller machine (ATM) that includes a pickup roller for sequentially picking up and feeding stacked media through a friction member on a portion of the outer periphery of the pickup roller, a feed roller for feeding the picked-up and fed media toward a transfer path through a friction member provided on a portion of the outer periphery of the feed roller while rotating with the same phase as the pickup roller, and a medium separation unit for separating a following medium simultaneously fed with a preceding medium fed to the feed roller while in close contact with the bottom, from the preceding medium through a separation belt, to pick up and feed media through a partial roller structure partially having a friction member and simultaneously perform the separation of the media through the medium separation unit.

First claim

What is claimed is:

1. A medium separation device of an automated teller machine (ATM), which separates stacked media sheet by sheet and feeds them toward a transfer path, the medium separation device comprising:
three pickup rollers disposed above the stacked media, each of the pickup rollers having a first friction member protruding from a portion of the outer periphery of a roller body of each of the pickup rollers so as to be contacted with the stacked media, each of the pickup rollers sequentially picking up and feeding the stacked media by the first friction member according to the rotation of the roller body, the three pickup rollers spaced apart on a same shaft along a direction perpendicular to a medium feeding direction in which the stacked media are fed;
two feed rollers spaced apart from the pickup rollers in the medium feeding direction on a same shaft, each of the feed rollers having a second friction member provided on a portion of the outer periphery of a roller body of each feed roller so as to be contacted with media picked up and fed by the pickup rollers, each of the feed rollers feeding the picked-up and fed media toward the transfer path through the second friction member while rotating with a same phase as the pickup rollers, each of the feed rollers inserted between the pickup rollers; and
four medium separation units disposed below the feed rollers, each of the medium separation units having a plurality of separation rollers and a separation belt wound around the separation rollers, the medium separation unit separating a following medium, which is simultaneously fed while being in close contact with a preceding medium fed by the pickup roller and the feed roller, from the preceding medium through the friction of the separation belt, each pair of the medium separation units is disposed below both sides of each of the feed rollers.

2. The medium separation device of claim 1 , further comprising a pinch roller for transferring the media passing between the feed rollers and the medium separation units onto the transfer path.

3. The medium separation device of claim 1 , wherein the outer periphery of the roller body of each of the pickup rollers is formed to have a circumferential length corresponding to that of the media, so that the first friction member allows one of the stacked media to be picked up and fed whenever the pickup roller rotates once.

4. The medium separation device of claim 3 , wherein the outer periphery of the first friction member is formed to have a circumferential length equal to or greater than that from a medium pickup start point of the first friction member to a medium contact point of each of the feed rollers.

5. The medium separation device of claim 1 , wherein each of the feed rollers is formed to have the same diameter as each of the pickup rollers.

6. The medium separation device of claim 1 , wherein the second friction member is configured to have a friction coefficient relatively greater than that of the separation belt.

7. The medium separation device of claim 1 , wherein each of the medium separation units includes:
a first separation roller disposed vertically opposite to the feed roller;
a second separation roller disposed to be spaced apart from the first separation roller toward the transfer path; and
a separation belt wound around the first and second separation rollers to separate the following medium, which is simultaneously fed while being in close contact with the preceding medium fed by the pickup roller and the feed roller, from the preceding medium.

8. The medium separation device of claim 7 , wherein the separation belt is provided with a tension adjusting unit for adjusting the tension of the separation belt.

Assignees

• Nautilus Hyosung Inc

Inventors

• Hwang Jin Young
• Park Jong Seong
• Park Chang Ho
• Lee Young Chul

Classifications

• B65H2404/1118

  with at least a relief portion on the periphery · CPC title

• B65H2404/255

  Arrangement for tensioning · CPC title

• B65H3/5269 Primary

  Retainers of the belt type, e.g. belts · CPC title

• B65H2404/1141

  covering a part of the periphery · CPC title

• B65H3/0638

  Construction of the rollers or like rotary separators (B65H3/0615 takes precedence; construction of feed or guide rollers B65H27/00) · CPC title