Banknote Storage Device Compact Reel Arrangement
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Solution Overview
Problem
Conventional banknote storing units face challenges in downsizing due to the spatial requirements of their reel configurations, leading to inefficiencies in tape overlap and increased size.
Innovation Solution
A sheet storing unit configuration featuring a first reel and a second reel disposed coaxially, with a drum that sandwiches a sheet between overlapping tapes, and a changing mechanism that adjusts tape positions parallel to the drum axis, allowing for compact design and efficient tape path management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If conventional reel configurations are used with tapes disposed vertically opposing each other, then the structure is simple to implement, but the overall size of the storage unit increases and downsizing becomes difficult
Solution Approach 1:
The patent changes the spatial arrangement of reels from a vertical opposing configuration to a horizontal adjacent configuration. The first and second reels are disposed horizontally next to each other rather than vertically one above the other, which fundamentally alters the tape path geometry and enables compact packaging of the storage unit while maintaining all necessary functional relationships between components
2Volume of moving object
If tapes are wound around horizontally adjacent reels, then the storage unit can be downsized, but the tape path length increases requiring a changing mechanism
Solution Approach 1:
The patent introduces a changing mechanism that includes a changing member positioned between the first and second reels. This changing member acts as an intermediary to redirect and guide the tapes, effectively managing the increased tape path length created by the horizontal reel arrangement. The changing mechanism allows tapes to transition smoothly between reels without excessive length while maintaining the compact horizontal configuration
3Stability of the object's composition
If the drum axis is oriented vertically, then sheet winding is stable, but the reel configuration requires more vertical space increasing overall unit size
Solution Approach 1:
The patent reorients the drum axis from vertical to horizontal positioning. By rotating the drum 90 degrees so its axis extends horizontally rather than vertically, the storage unit可以利用 horizontal space instead of vertical space, enabling downsizing in the vertical dimension while maintaining stable sheet winding through the horizontal drum configuration that works in conjunction with the horizontal reel arrangement
Data Source
AI summary
A sheet storage device includes a first reel that is disposed along a first axis and around which a first tape is wound; a second reel that is disposed along a second axis and around which a second tape is wound; a drum that is disposed along a third axis so as to wound a sheet, that is sandwiched between the first tape and the second tape at least partially overlapping each other, on an outer peripheral surface of the drum together with the first tape and the second tape; a first tape path between the first reel and the drum; a second tape path between the second reel and the drum; and a changing mechanism disposed in at least one of the first tape path or the second path, the changing mechanism changing a position of a corresponding tape to a direction parallel to the third axis.