Bicycle Quick Release Structure With Buffered Anti-Rattle Clamping
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Solution Overview
Problem
Conventional bicycle quick release structures generate noise due to the shaking clamping element bumping against the shaft due to manufacturing tolerances, leading to instability and wear.
Innovation Solution
A quick release structure with a shaft featuring a recess and annular groove, a resilient member, and a clamping element with a clamping member made of soft material, providing additional support and buffering to stabilize the connection and reduce noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the clamping element is manufactured with tolerance to fit around the shaft, then the clamping element can be mounted on the shaft, but the combination stability deteriorates and noise is generated due to the gap between the clamping element and shaft
Solution Approach 1:
The resilient member acts as an intermediary between the clamping element and the shaft. It fills the gap created by manufacturing tolerances, providing continuous contact and stable combination while allowing the clamping element to be manufactured with standard tolerances. The resilient member deforms to maintain contact pressure, eliminating the instability caused by gaps.
2Object-affected harmful factors
If the resilient member is mounted around the clamping element, then the clamping element can be buffered against the shaft, but noise is still generated due to insufficient buffering effect from the gap
Solution Approach 1:
The resilient member provides beforehand cushioning by being pre-installed on the shaft in the annular groove. It is positioned in advance to absorb and mitigate the impact and vibration that would otherwise occur between the clamping element and shaft, reducing noise and improving reliability before any harmful contact occurs.
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 enhances stability and reduces noise and wear by utilizing the resilient member and clamping member to absorb shocks, ensuring a secure and quiet operation.
Implementation Method 1
a resilient member (26) mounted on the shaft (20)... the outer surface of the clamping element (30) abuts against an inner surface of the annular resilient member
Implementation Method 2
a clamping member (32) mounted around the clamping element (30)... the clamping member (32) is made of a soft material... providing additional support and buffering to stabilize the connection and reduce noise
Data Source
AI summary
A quick release structure has a quick release handle, a shaft, a clamping element, and a clamping member. The shaft has a recess, a cavity, and a resilient member. The cavity is defined in an end of the shaft. The recess is defined in a bottom of the cavity. The cavity has a diameter gradually increasing from the end of the shaft toward the recess. The clamping element has two ends. One of the ends is connected with the quick release hand, and the other end extends into the recess. The clamping member is mounted around the clamping element. When the clamping element is combined with the quick release handle and the recess, at least a part of the clamping member is engaged with the cavity and two sides of the clamping member respectively abut against the bottom of the cavity and the quick release handle.