Paper Sheet Handling With Mechanical Shutters for Gap Control
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Solution Overview
Problem
Conventional paper sheet handling apparatuses require complex structures with motors and power transmission mechanisms to close gaps in partition portions, leading to increased complexity and potential foreign matter intrusion.
Innovation Solution
A paper sheet handling apparatus with a partition portion that includes movable shutters to open and close openings, eliminating the need for motors and power transmission mechanisms by using a simple mechanical shutter opening/closing unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If motors and power transmission mechanisms are used to close gaps in partition portions, then the gap can be reliably closed, but the device complexity increases
Solution Approach 1:
The patent removes the motor and power transmission mechanism from the partition portion, extracting the complex actuating components while retaining the essential gap-closing function through a simplified mechanical linkage system driven by the conveying unit's movement
Solution Approach 2:
The patent combines the gap-closing function with the conveying unit's existing movement, so that the single acting member simultaneously drives the conveying motion and closes the partition gap, eliminating the need for separate actuating mechanisms
2Reliability
If motors and power transmission mechanisms are used to close gaps in partition portions, then the gap can be reliably closed, but the manufacturing complexity increases
Solution Approach 1:
The patent removes the motor and power transmission mechanism from the partition portion, extracting the complex actuating components while retaining the essential gap-closing function through a simplified mechanical linkage system driven by the conveying unit's movement
Solution Approach 2:
The patent employs a simple mechanical linkage system that is easier and cheaper to manufacture than motor-driven mechanisms, accepting that the linkage may require periodic replacement while significantly reducing initial manufacturing complexity and cost
3Device complexity
If a simple mechanical shutter mechanism is used, then the structure is simplified, but the reliability of closing the opening may be compromised
Solution Approach 1:
The patent combines the gap-closing function with the conveying unit's existing movement, so that the single acting member simultaneously drives the conveying motion and closes the partition gap, eliminating the need for separate actuating mechanisms
Solution Approach 2:
The patent designs the mechanical linkage system to automatically close the partition gap through the inherent movement of the conveying unit, without requiring external power sources or complex control systems, making the system self-actuating and reliable
Data Source
AI summary
A paper sheet handling apparatus includes: a partition portion that forms an insertion space into which a paper sheet is inserted from an insertion port with a first opposing portion, and forms a taking-out space from which the paper sheet is taken out from the insertion port with a second opposing portion; and a conveyor that conveys the paper sheet left in the taking-out space in a state of protruding toward the taking-out space from a first opening portion of the first opposing portion and a second opening portion of the partition portion. The partition portion includes a second shutter that openably closes the second opening portion, and a second shutter opening/closing unit that opens the second opening portion by opening the second shutter in conjunction with an operation in which the partition portion moves to the remaining banknote conveyance position.