Banknote Stacking Impeller With Openable Shaft Fastening
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Solution Overview
Problem
Conventional ATMs and automatic cash register systems face the challenge of impeller damage due to continuous mechanical stress, necessitating time-consuming disassembly and replacement of the entire device to replace a potentially defective impeller.
Innovation Solution
A device and method allowing for the replacement of the impeller by designing an openable fastening element that can be clamped around the shaft, enabling the impeller to be installed or replaced without disassembling the shaft, thus maintaining the integrity of the device's support structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the impeller is fixed to the shaft using a conventional continuous ring fastening element, then the impeller remains securely fixed during operation, but the entire device must be disassembled to replace a defective impeller
Solution Approach 1:
The continuous ring fastening element is segmented into at least two separate fastening elements that can be opened and closed. This allows the impeller to be removed from the shaft by opening the fastening elements, enabling easy replacement without disassembling the entire device, while still providing secure fixation during operation when closed.
2Reliability
If the impeller is securely fixed to the shaft, then the impeller prevents uncontrolled deposit of notes, but the mechanical stress causes continuous damage to the impeller
Solution Approach 1:
The patent changes the physical state or properties of the fastening element from a permanent rigid connection to a reversible connection that can open and close. This allows the impeller to be replaced when damaged without replacing the entire shaft assembly, effectively extending the service life of the overall system while maintaining reliable note stacking during operation.
3Ease of repair
If the shaft is removed to replace the impeller, then the defective impeller can be replaced, but the entire device must be disassembled which is time-consuming
Solution Approach 1:
The fastening system is segmented into separable components that can be opened to release the impeller from the shaft. This allows the impeller to be quickly removed and replaced without removing the shaft or disassembling the entire device, significantly reducing replacement time while maintaining secure fixation during normal operation.
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
Facilitates efficient impeller replacement without disassembling the device, optimizing assembly processes, and extending the impeller's service life through elastic blades and improved fixation mechanisms.
Implementation Method 1
The impeller, which has elastic blades enables the rapid deposit of a large number of notes on the stack
Implementation Method 2
the fastening element continuously surrounds the shaft in a closed state of the fastening element when the impeller is fixed to the shaft
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
Shown is an impeller for fixing on a rotatably mounted shaft of a device for stacking at least one note of value on a support surface, the impeller having a fastening element for fixing the impeller to the shaft and a vane fixed to the fastening element for exerting a force on a note of value when the shaft rotates, wherein the fastening element, in a closed state of the fastening element, for fixing the impeller to the shaft, can be continuously clamped around the shaft, and the fastening element, in an open state of the fastening element, does not form a continuous ring, such a device and a method for replacing or installing such an impeller.