Jog Wheel Turntable Assembly for Vinyl Scratch Playback Control
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Solution Overview
Problem
Existing audio players lack the ability to emulate the feedback and sound effects achieved by manually scratching a vinyl record, which is crucial for creating a lively atmosphere during events like parties.
Innovation Solution
A turntable driving device with a rotating disc module, jog wheel module, and sensing modules that allow for manual control of music playback speed and direction, mimicking vinyl record scratching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional audio player is used to play digital music files, then music playback is stable and controlled, but the ability to emulate vinyl record scratching and create special sound effects is lost
Solution Approach 1:
The device is divided into independent functional modules: a rotating disc module for playback, a jog wheel module for manual control, and a sensing module for detection. This segmentation allows each module to perform its specific function independently, enabling vinyl scratching emulation while keeping the overall system manageable and not excessively complex.
Solution Approach 2:
The jog wheel module serves multiple functions: it can manually rotate the rotating disc, it can be scratched by hand to emulate vinyl records, and it provides tactile feedback to the user. This multi-functionality allows the device to emulate vinyl record scratching capabilities while avoiding the need for separate dedicated components for each function.
2Ease of operation
If the jog wheel module is designed to be co-rotatable with the rotatable plate for manual control, then user control over playback speed and direction is improved, but the mechanical complexity and potential wear increase
Solution Approach 1:
The sensing module acts as an intermediary between the jog wheel module and the rotating disc module. It detects the rotational state of the jog wheel and transmits this information to the driving unit, which then controls the rotating disc. This intermediary approach allows manual control functionality while reducing direct mechanical complexity and wear between components.
Solution Approach 2:
The patent replaces direct mechanical coupling between the jog wheel and rotating disc with an electronic control system. The sensing module detects jog wheel rotation and the driving unit electronically controls the rotating disc based on this input, substituting mechanical transmission with electronic control to reduce mechanical complexity and wear.
3Reliability
If the axial bearing is disposed between the base seat and the driving unit to support the rotating disc module, then rotational stability and durability are improved, but the device complexity increases
Solution Approach 1:
The axial bearing is positioned to naturally support the rotating disc module's weight and rotational forces without requiring additional active control mechanisms. The bearing's geometry and placement allow it to self-align and maintain rotational stability, providing reliable support while avoiding the need for complex active stabilization systems.
Data Source
AI summary
A turntable driving device is electrically connected to an audio player and includes a base seat disposed on the audio player, a hollowed cylinder connected fixedly to the base seat, a rotating disc module including a driving unit and a rotatable plate, an axial bearing disposed between the base seat and the driving unit, and a jog wheel module rotatably sleeved on a top portion of the cylinder. The driving unit is sleeved rotatably on a bottom portion of the cylinder, and the rotatable plate is mounted to and driven by the driving unit to rotate. The jog wheel module is operable to change between a co-movable state, where the jog wheel module is co-rotatable with the rotatable plate, and a non-co-movable state, where the jog wheel module is rotatable relative to the rotatable plate.