Nested Rotatable Selector Interface for Appliance Safety and Usability
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Solution Overview
Problem
There is a need to improve appliance safety and usability by limiting disassembly or removal of components from the outside and enhancing the electro-mechanical interface with two selector elements.
Innovation Solution
An electro-mechanical interface apparatus featuring a mounting element with a hollow sleeve and a fastening ring, where the sleeve is rotatable and includes a hub element to restrict separation, coupled with a second selection element, allowing user selection and signal generation for processor modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional single-selector interface is used, then the device complexity is low, but the usability and functionality are limited
Solution Approach 1:
The patent implements a nested selector configuration where a first rotatable selector element and a second rotatable selector element are positioned concentrically, with the second selector nested within or adjacent to the first selector. This nesting arrangement allows multiple selection functions to be integrated in a compact space, enabling complex functionality without proportionally increasing the device's external dimensions or visual complexity.
2Reliability
If components are made easily accessible for assembly, then the ease of manufacture is improved, but the appliance safety is compromised
Solution Approach 1:
The interface assembly is segmented into distinct functional components: a mounting element with aperture, a first rotatable selector element, a second rotatable selector element, and a fastening element. This segmentation allows each component to be manufactured and assembled separately through the mounting aperture from the first side, improving manufacturing ease while the fastening element secures all components against the second side to prevent unauthorized disassembly, thus maintaining appliance safety.
3Ease of operation
If the selector elements are made rotatable for user selection, then the ease of operation is improved, but the risk of unauthorized disassembly increases
Solution Approach 1:
The selector elements are designed with rotational freedom to enable easy user operation for selecting different settings or functions. However, the fastening element is configured to engage with the selector elements and secure them against the mounting element, preventing axial removal or unauthorized disassembly. This dynamic design allows the selectors to rotate freely for normal operation while remaining securely fixed in position.
Data Source
AI summary
An electro-mechanical interface device for an appliance. The device including: a mounting element having a first side and a second side, the mounting element having a mounting aperture from the first side through to the second side; a first selection element in the form of a hollow sleeve that is partially located through the mounting aperture from the first side of mounting element; and a fastening ring engages the first selection element from the second side of mounting element, such that the first selection element is releasably retained from being withdrawn from the mounting aperture, wherein the first selection element is rotatable with respect to the mounting element. The device may further include a hub element is located within the circular-sleeve of the first selection element that restricts separation of the first selection element from the fastening ring.