ATM Sheet Roller Friction Alignment
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Solution Overview
Problem
Conventional ATMs lack a dedicated structure to correct skewing of paper mediums during stacking on the medium conveying portion, leading to misalignment when dispensed.
Innovation Solution
Incorporating a sheet roller portion with a middle sheet roller made of rubber and an outer sheet roller made of plastic, generating different frictional forces to align and transfer paper mediums, ensuring correct alignment and smooth transfer to the medium carrier.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If paper mediums are transferred from the medium storage portion through the medium transfer portion to the medium conveying portion, then the paper mediums can be temporarily stacked and subsequently dispensed, but the paper mediums may become skewed during stacking and conveying, resulting in misalignment at the dispenser portion
Solution Approach 1:
A sheet roller portion is introduced as an intermediary component between the medium transfer portion and the medium conveying portion. This sheet roller actively rotates to transfer paper mediums sheet by sheet, providing controlled mediation in the transfer process that prevents skewing and maintains alignment precision while enabling automated stacking.
Solution Approach 2:
The sheet roller portion changes the operational parameters of the transfer process by rotating in a controlled manner to transfer paper mediums one sheet at a time. This rotational motion parameter change ensures precise positioning and alignment of each sheet during transfer, preventing the skewing that occurs in uncontrolled bulk transfer.
2Manufacturing precision
If a sheet roller portion is introduced to transfer paper mediums sheet by sheet and align them, then alignment precision is improved, but the device complexity increases
Solution Approach 1:
The sheet roller portion serves multiple functions simultaneously: it transfers paper mediums sheet by sheet, aligns them by rotational control, and prevents skewing during stacking. By consolidating these functions into a single multi-functional component, the device complexity increase is minimized while achieving improved alignment precision.
3Manufacturing precision
If the sheet roller portion rotates to transfer and align paper mediums, then alignment is improved, but the risk of paper mediums becoming jammed may increase
Solution Approach 1:
The sheet roller portion transfers paper mediums in a controlled partial manner, one sheet at a time, rather than attempting to transfer multiple sheets simultaneously. This partial action approach ensures that each sheet is properly positioned and aligned before the next is transferred, reducing the risk of jamming while maintaining alignment precision.
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
The solution effectively aligns paper mediums on the medium carrier, preventing skewing and ensuring proper alignment for dispensing, while also preventing jams during transfer.
Implementation Method 1
The middle sheet rollers may be made of a material generating a greater frictional force than a material of the outer sheet roller. Therefore, a relatively greater supporting force may be generated at the middle part than the outer part of the paper mediums, thereby preventing a skew of the paper mediums being stacked.
Data Source
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AI summary
An automatic teller machine (ATM) may include a medium transfer portion to transfer paper mediums from a paper medium storage portion storing the paper mediums, a carrier position adjustment portion rotatably mounted at a rear end of the carrier transfer portion, to which a medium carrier stacking and carrying the paper mediums transferred along the medium transfer portion is rotatably mounted, and a sheet roller portion rotatably mounted between the medium carrier and the carrier position adjustment portion to transfer the paper mediums on the medium transfer portion into the medium carrier by a rotational operation and to align the paper mediums stored in the medium carrier, wherein the sheet roller portion contacts the paper medium such that a greater frictional force is generated at a middle area than an outer area when transferring the paper mediums on the medium transfer portion into the medium carrier or when aligning the paper mediums stored in the medium carrier.