Pedal Assembly Returning Mechanism for Percussion Instruments
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Solution Overview
Problem
Conventional pedal mechanisms for percussion instruments face challenges in adjustable spring tension due to dislocation during adjustment and noise from colliding components, affecting operation comfort, tone, and hitting accuracy.
Innovation Solution
A pedal assembly with a returning mechanism featuring an adjustable housing and axial rod system, where an elastic member is located between the axial rod and housing, and an adjusting assembly allows for easy tension adjustment and reduces noise by dispersing force and preventing unexpected movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the adjusting member is directly connected with the spring to adjust tension, then the spring tension can be adjusted, but the adjusting member is easily dislocated due to elastic force during adjustment
Solution Approach 1:
A housing is introduced as an intermediary component between the adjusting member and the spring. The adjusting member adjusts the position of the housing along the axial rod, and the housing in turn applies force to the spring. This intermediary structure prevents direct connection, eliminating dislocation issues while maintaining tension adjustability.
2Device complexity
If the components of the returning assembly are closely arranged, then the structure is compact, but the components move and collide with one another during pedaling, resulting in noises
Solution Approach 1:
The housing acts as a mediator that guides and constrains the movement of the axial rod and spring. By providing defined movement paths and physical barriers, the housing prevents uncontrolled collisions between components while maintaining a compact overall structure.
Solution Approach 2:
The housing pre-positioned around the axial rod and spring creates a controlled environment that prevents component collision before it can occur. The structural enclosure serves as a preventive measure against noise-generating collisions during pedal operation.
3Manufacturing precision
If the spring tension is made strong for quick return, then the hitting accuracy improves, but the operation comfortability deteriorates due to excessive force required
Solution Approach 1:
The adjusting member and housing allow the spring tension to be dynamically adjusted according to different playing requirements. Users can modify the spring position along the axial rod to change tension levels, enabling optimization between quick return (hitting accuracy) and ease of operation based on specific needs.
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 solution enables convenient and precise adjustment of spring tension, reducing noise and ensuring smooth operation by allowing the pedal and drumstick to return to their original positions quickly and quietly, enhancing operation comfort and hitting accuracy.
Implementation Method 1
an elastic member received in the housing and an adjusting assembly connected with the housing. The elastic member is located between the axial rod and the housing
Data Source
AI summary
A pedal assembly for a percussion instrument is provided, including: a base, a shaft, a pedal and a returning mechanism. The base includes a bottom plate and a first rod member disposed on the bottom plate. The shaft is rotatably disposed on the first rod member about an axial direction. The pedal is swingably connected between the bottom plate and the shaft. The returning mechanism includes an axial rod being co-movable with the shaft, a housing sleeved to the axial rod, an elastic member received in the housing and an adjusting assembly connected with the housing. The elastic member is located between the axial rod and the housing, and a relative position of the housing and the axial rod is adjustable by the adjusting assembly.