Multi-directional Input Device Lever Assembly Carbon-film Conductive Dome
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Solution Overview
Problem
Video game console levers exhibit low sensitivity, leading to poor control accuracy and user experience due to small movements not producing electrical signals effectively.
Innovation Solution
A multi-directional input device with a lever assembly, electrical assembly, reset assembly, and spring switch, featuring carbon-film conductive domes and resistors that convert small lever movements into precise electrical signals, allowing direct control of cursor movement on a screen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a traditional lever with flexible films and spring switches is used, then the device structure is simple, but the sensitivity and input accuracy are low because small lever movements fail to produce electrical signals
Solution Approach 1:
The patent replaces the traditional mechanical flexible film and spring switch system with an electrical assembly comprising carbon-film conductive domes, carbon-film resistors, and sliders. This substitution enables high-sensitivity detection of small lever movements through electrical signal generation, resolving the contradiction between maintaining simple structure and achieving high input accuracy.
Solution Approach 2:
The patent changes the operational parameters by introducing carbon-film conductive domes that can be pressed by the lever to contact carbon-film resistors, thereby changing resistance values. This parameter-based detection method allows for high-precision input detection while maintaining a relatively compact structure, addressing the contradiction between measurement precision and device complexity.
2Measurement precision
If the lever sensitivity is increased to improve control accuracy, then the input accuracy improves, but the device complexity increases due to additional mechanisms
Solution Approach 1:
The patent merges the lever assembly with the electrical assembly, where the lever directly actuates the carbon-film conductive domes without requiring separate transmission mechanisms. This integration achieves high control accuracy through direct coupling while avoiding the complexity of additional mechanical components.
Solution Approach 2:
The patent introduces carbon-film conductive domes as intermediaries between the lever and the electrical circuit. These domes translate small lever movements into electrical signal changes by contacting carbon-film resistors, achieving high sensitivity without requiring complex amplification or transmission mechanisms.
3Speed
If traditional flexible films are used for signal detection, then the device structure is simple, but the response speed and sensitivity are insufficient for small movements
Solution Approach 1:
The patent replaces the mechanical flexible film detection system with an electrical assembly using carbon-film conductive domes and resistors. This substitution dramatically improves response speed by directly converting lever movements into electrical signals without the delays inherent in mechanical film deformation and contact, while the electrical assembly remains relatively compact.
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 device achieves high input accuracy by converting even slight lever movements into electrical signals, improving control precision and user experience without the need for additional mechanisms, and ensuring accurate vertical reset and intimate contact for enhanced performance.
Implementation Method 1
the first carbon-film conductive dome and the first carbon-film resistor, and the second carbon-film conductive dome and the second carbon-film resistor, respectively
Implementation Method 2
a spring switch disposed in the base and positioned below the trigger to open and close a circuit
Implementation Method 3
a reset assembly comprising a reset ring and a spring embedded in the reset ring; one end of the spring abuts against a lower end of the reset ring and the other end abuts against the base
Data Source
AI summary
An input device, including: a base, an upper cover, a lever assembly, a reset assembly, an electrical assembly, a spring switch, and a terminal assembly. The upper cover is disposed on the base and includes a central cavity. The lever assembly is disposed in the central cavity formed by the upper cover and the base, and includes a lever, an upper shoulder, and a lower shoulder. The lever includes an upper end and a lower end. The reset assembly is disposed below the lever assembly. The electrical assembly is electrically connected to the lever assembly, and includes a first slider, a second slider, a first carbon-film conductive dome, a first carbon-film resistor, a second carbon-film conductive dome, a second carbon-film resistor, and a trigger. The spring switch is disposed in the base and positioned below the trigger.