ATM Medium Separation Device Skew Prevention
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Solution Overview
Problem
In existing ATM medium separation devices, a skew in a preceding medium can cause continuous skewing issues in the following medium due to the belt structure, leading to errors in media transfer, especially when dealing with folded or mixed media of varying thickness.
Innovation Solution
A medium separation device with a pickup roller and feed roller featuring friction members on their peripheries, combined with a medium separation unit using a separation belt structure, ensures that media are picked up and fed sheet by sheet, preventing skewing by maintaining close contact and separating media effectively without being influenced by thickness or distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a belt structure is used to pick up and feed media, then the media can be fed continuously, but skew in a preceding medium influences the following medium causing continuous skewing
Solution Approach 1:
The patent divides the feeding system into separate functional units: a pickup roller with friction member for picking up media, a feed roller for feeding, and a medium separation unit with separation belt. This segmentation isolates the skewing influence to only the separation unit while maintaining continuous feeding through the roller chain, preventing skew propagation throughout the entire system.
Solution Approach 2:
The patent extracts the separation function from the feeding function. The separation belt is specifically dedicated to separating following media from preceding media, while the pickup and feed rollers handle only the feeding function. This extraction allows the separation unit to correct skew without compromising the continuous feeding capability of the roller system.
2Ease of operation
If a feed belt is used to pick up and feed media, then feeding can be performed, but skew continuously occurs in fed media due to influence from preceding medium
Solution Approach 1:
The separation belt acts as an intermediary between the feed roller and the transfer path. It specifically addresses the skewing problem by separating the following medium from the preceding medium that causes skew, while allowing the feed roller to continue its feeding operation undisturbed. This intermediary structure resolves the conflict between easy feeding operation and reliable skew prevention.
3Manufacturing precision
If a roller structure with friction member is used, then media can be picked up sequentially, but separation of simultaneously fed media requires additional separation unit
Solution Approach 1:
The patent merges the separation function into the existing roller-based feeding system by adding a separation belt that works in conjunction with the feed roller. The separation unit is integrated with the roller structure, where the separation belt contacts the media at the point where they emerge from between the feed roller and pickup roller, combining sequential pickup precision with effective separation without requiring a completely separate complex system.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration stabilizes the separation and feeding of media, preventing continuous skewing and improving efficiency even with mixed media of different thicknesses, ensuring accurate and error-free transfer.
Implementation Method 1
a pickup roller for sequentially picking up and feeding stacked media through a friction member provided on a portion of the outer periphery of the pickup roller
Implementation Method 2
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
Implementation Method 3
a medium separation unit for separating a following medium, which is simultaneously fed with a preceding medium fed to the feed roller while being in close contact with the bottom thereof, from the preceding medium through a separation belt
Data Source
Figure 1(a)~2
Figure 3~4
Figure 5~6
AI summary
The present invention relates to a medium separation device of an automated teller machine (ATM), and more particularly, to a medium separation device of an ATM, which includes a pickup roller (110) for sequentially picking up and feeding stacked media (10) through a friction member (111) provided on a portion of the outer periphery of the pickup roller, a feed roller (120) for feeding the picked-up and fed media toward a transfer path through a friction member (121) 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 (130) for separating a following medium, which is simultaneously fed with a preceding medium fed to the feed roller while being in close contact with the bottom thereof, from the preceding medium through a separation belt (133), so as 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 of the separation belt structure, whereby it is possible to effectively separate and feed the picked-up and fed media sheet by sheet by the separation belt structure and thereby effectively prevent the problem that as media are picked up and fed using a feed belt of a belt structure in a belt-type medium separation device according to a prior art, a skew occurring in a preceding medium has influence on even a following medium, and therefore, the skew continuously occurs in media fed by the feed belt.