Bicycle Bell Elastic Support Reduces Vibration Energy Loss
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Solution Overview
Problem
Conventional bicycle bells suffer from reduced sound amplitude and energy loss due to the direct conduction of vibration energy through hard metal components, resulting in a muted and short warning sound.
Innovation Solution
A bicycle bell design featuring an elastic support with curved arms and a horizontal section that connects the fixing seat to the bell cover, minimizing contact area and utilizing a flexible medium with poor energy conductivity to enhance vibration amplitude and duration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the cover shaft is made of hard solid metal and pressed tightly to firmly combine with the bell cover, then the connection strength is improved, but the vibration energy is quickly conducted away, reducing sound amplitude and duration
Solution Approach 1:
The patent introduces an elastic support as an intermediary component between the fixing seat and the bell cover. This elastic support is made of flexible material with poor energy conductivity, serving as a mediator that connects the two rigid components while preventing direct vibration energy transfer. The elastic support absorbs and isolates vibration energy, preventing it from being quickly conducted away through the hard metal cover shaft, thereby maintaining larger vibration amplitude and longer sound duration while still providing firm connection.
2Loss of energy
If the cover shaft is pressed tightly to reduce contact area, then the energy conductivity is reduced, but the connection firmness is compromised
Solution Approach 1:
The elastic support acts as a mediator that resolves the contradiction between connection firmness and energy isolation. It provides a flexible connection that is firm enough to hold the bell cover securely while simultaneously maintaining poor energy conductivity due to its material properties and minimal contact area design.
Solution Approach 2:
The patent employs an elastic support made of flexible material instead of rigid metal. This flexible component can deform elastically to accommodate the bell cover while maintaining a small contact area, thereby reducing vibration energy conductivity without compromising the firmness of the connection.
3Stability of the object's composition
If the bell cover has large contact area with the shaft tube, then the connection stability is improved, but the vibration amplitude is reduced due to increased energy conduction
Solution Approach 1:
The elastic support serves as a mediator between the shaft tube and the bell cover, allowing for stable connection while preventing efficient vibration energy transfer. Its flexible nature and poor energy conductivity ensure that the bell cover can vibrate with larger amplitude for longer duration without compromising connection stability.
Solution Approach 2:
The patent changes the material parameter of the support component from hard metal to flexible elastic material. This parameter change fundamentally alters the energy conductivity while maintaining connection stability, allowing the bell cover to maintain larger vibration amplitude and longer vibration duration.
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 design results in a louder and longer-lasting sound due to reduced energy loss, as the elastic support allows for larger vibration amplitude and minimizes energy dissipation, effectively amplifying the bell's warning sound.
Implementation Method 1
an elastic support (23)... The elastic support is a relatively flexible medium with poor energy conductivity
Implementation Method 2
The elastic support is a relatively flexible medium with poor energy conductivity, so that the vibration amplitude of the bell cover is large, the energy loss is small, and the vibration is longer and louder
Data Source
AI summary
A bicycle bell includes a fixing seat on a pipe clamp, a bell cover, and an elastic support. The elastic support has two curved arms and a horizontal section. The two curved arms extend upward from two ends of the horizontal section. The two curved arms have engaging ends extending outwardly and laterally. The horizontal section is mounted to the fixing seat. The engaging ends are connected to the bell cover in a snap-on manner. In the bicycle bell, the fixing seat and the bell cover are assembled through the elastic support. The elastic support is a relatively flexible medium with poor energy conductivity, so that to the vibration amplitude of the bell cover is large, the energy loss is small, and the vibration is longer and louder.