Foot-Actuated Turntable with Push-Pull Cable for Scratching
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Solution Overview
Problem
Current musical turntables require manual manipulation to produce a 'scratching' sound effect, limiting user convenience and versatility.
Innovation Solution
A musical turntable system that includes a rotatable platform supported by a housing, a tonearm, and a foot pedal with a push-pull cable mechanism, allowing the platform to rotate relative to the tonearm and housing, enabling the generation of a scratching sound effect without manual hand operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual manipulation is used to operate the turntable, then the scratching sound effect can be produced, but the ease of operation is reduced and user convenience is limited
Solution Approach 1:
The patent introduces a foot pedal as an intermediary device between the user and the turntable platform. The foot pedal is coupled to the platform through a push-pull cable, allowing the user to operate the turntable with foot movements rather than hand manipulation. This intermediary mechanism resolves the contradiction by providing a more convenient operating method that enhances both ease of operation and versatility in producing scratching sound effects.
2Adaptability or versatility
If a foot pedal mechanism is added to enable pedal operation, then ease of operation and versatility are enhanced, but device complexity increases
Solution Approach 1:
The patent segments the turntable system into distinct functional components: the foot pedal assembly, the push-pull cable mechanism, and the platform assembly. By dividing the system into these separate modules, the complexity is distributed and managed more effectively. Each component can be independently designed, assembled, and maintained, reducing the overall device complexity while still achieving the enhanced versatility of foot-operated scratching.
3Productivity
If the platform is made rotatable relative to the tonearm and housing through pedal actuation, then the scratching sound effect generation is improved, but the device complexity increases
Solution Approach 1:
The patent implements a dynamic rotation mechanism where the platform can rotate relative to the tonearm and housing in response to foot pedal actuation. The push-pull cable system allows the platform to be rotated back and forth, creating the scratching sound effect. This dynamic capability enhances productivity by enabling versatile scratching techniques while the mechanical simplicity of the cable-pulley system keeps the added complexity manageable.
Data Source
AI summary
A musical instrument configured to generate a scratching sound effect includes a rotatable platform configured to support a record thereon, and a pedal (such as, for example, a foot pedal) operably coupled to the platform. The foot pedal is actuatable from a first position to a second position to rotate the platform, and in turn, the record.