Elastic Collar Clamp for Bicycle Mudguard Rod Grip
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Solution Overview
Problem
Existing solutions for fastening mudguard rods on bicycles are overly complex in design and operation, lacking a simplified configuration for effective grip.
Innovation Solution
A single, pliably elastic collar clamp with separable wings and toothed appendages that snap together to form a cylindrical tubular cavity, providing a secure grip on the mudguard rods by reducing the cavity width and engaging with a U-shaped profile fixed to the mudguard.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional fastening systems with multiple components (screws, tapering parts, U-shaped profiles) are used, then reliable grip on mudguard rods is achieved, but device complexity increases
Solution Approach 1:
The patent combines multiple fastening components into a single integrated elastic collar element. The collar integrates the gripping function, the tightening mechanism, and the mounting structure into one piece, eliminating the need for separate screws, tapering parts, and U-shaped profiles while maintaining secure attachment to mudguard rods
Solution Approach 2:
The elastic collar serves multiple functions simultaneously: it provides the gripping surface for the rod, acts as the tightening mechanism through its elastic deformation, functions as the mounting structure with integrated wings for attachment, and provides the necessary structural support. This multi-functionality reduces the overall number of components required in the fastening system
2Device complexity
If elastic collar with separable wings is used, then device complexity is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The patent utilizes changes in the elastic collar's physical parameters, specifically its cross-sectional geometry and material elasticity, to achieve the fastening function. The collar is designed with specific geometric parameters (wing separation, cavity dimensions, wall thickness) that allow it to deform elastically during installation and maintain a secure grip, reducing the need for high-precision machining while ensuring reliable performance
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 offers a simplified and effective grip mechanism that securely holds mudguard rods with reduced encumbrance, leveraging the elastic properties of the collar clamp and snap coupling for efficient rod retention.
Implementation Method 1
a collar that is pliably elastic and that establishes a cylindrical tubular hollow that is open longitudinally according to its generatrix. Putting the two wings together, because the collar is elastic, the width of the tubular cavity is reduced, so that in this way it is tendentially interfering with respect to the section of the end of the mudguard-holding rod once inserted, establishing the grip.
Data Source
Figure 1~5
Figure 6~13
Figure 8~12
AI summary
The patent deals with elements that have the configuration of a collar clamp including an cylindrical cavity (6) opened by means of a generatrix from whose edges come out two tab extensions (2, 2', 3, 3') that are set slightly apart from one another, these latter being fitted with snap coupling devices (8, 9) with which coupling the space of the cylindrical cavity reduces establishing the gripping of the upper ends of the rods (5) that hold the mudguard of bicycles.