BMX Starting Gate Spring-Electromagnet Release Mechanism
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Solution Overview
Problem
Conventional BMX starting gates are excessively expensive due to the use of costly materials and components like 7-foot ramp platforms and expensive strong magnets or pneumatic ramjets, making them inaccessible to most riders.
Innovation Solution
A cost-effective BMX starting gate design featuring a frame with a gate opening, a slider bar, a pivotally attached gate, a linkage bar, a lever, an electromagnet, and a spring, which allows the gate to extend and retract efficiently using less materials and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional starting gates use expensive strong magnets or pneumatic ramjets and 7-foot ramp platforms, then the gate operation reliability and performance are improved, but the cost becomes excessively high
Solution Approach 1:
The patent replaces expensive pneumatic ramjets with a simple spring-loaded mechanical release mechanism. The spring (element 22) stores energy and releases the gate (element 12) when the electromagnet (element 24) is deactivated, eliminating the need for costly pneumatic systems while maintaining reliable operation.
Solution Approach 2:
The patent uses a standard electromagnet (element 24) and spring mechanism instead of expensive specialized components. These inexpensive, readily available parts achieve the required functionality without the high cost of conventional starting gate components.
2Strength
If conventional starting gates use 7-foot ramp platforms and expensive components, then the gate structural strength and performance are improved, but the material usage and cost increase significantly
Solution Approach 1:
The patent divides the starting gate into separate functional modules: a frame (element 10), a gate (element 12), a slider bar (element 16), a linkage bar (element 20), and a lever (element 18). This segmentation allows each component to be optimized for its specific function while using minimal material, replacing the monolithic 7-foot ramp platform design.
Solution Approach 2:
The patent employs dynamic components including a pivotally attached gate (element 12) that can rotate, a slider bar (element 16) that allows linear movement, and a linkage bar (element 20) that transmits motion. These dynamic mechanisms achieve the required structural strength and operational flexibility without requiring extensive material usage.
3Manufacturing precision
If conventional starting gates use complex electromechanical systems, then the gate operation precision and control are improved, but the device complexity and setup difficulty increase
Solution Approach 1:
The patent uses a self-latching mechanism where the electromagnet (element 24) automatically engages with the strike plate (element 26) to hold the gate (element 12) in position. When the electromagnet is deactivated, the spring (element 22) automatically releases the gate, providing precise control without complex external systems or manual intervention.
Solution Approach 2:
The strike plate (element 26) serves as an intermediary component between the electromagnet (element 24) and the gate (element 12). This simple intermediary enables reliable engagement and disengagement of the gate mechanism, achieving precise operation through a straightforward electromagnetic interaction rather than a complex system.
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 provides a more affordable BMX starting gate that mimics the racetrack experience while being easier to set up and use, offering adjustable angles and reliable operation with the electromagnet mechanism, enhancing accessibility for riders.
Implementation Method 1
an electromagnet attached to the frame, wherein the electromagnet is positioned to releasably engage with the strike plate
Implementation Method 2
a spring connecting the gate to the slider bar
Data Source
AI summary
A BMX starting gate includes a frame with a gate opening; a slider bar attached to a bottom surface of the frame; a gate pivotally attached to the frame at a connection point such that the gate aligns with the gate opening; a linkage bar attached to the gate proximate to the connection point; a lever attached to the linkage bar distal from the gate, wherein both the linkage bar and the lever are slidably attached to the slider bar; a strike plate attached to the lever distal from the linkage bar; an electromagnet attached to the frame, wherein the electromagnet is positioned to releasably engage with the strike plate; and a spring connecting the gate to the slider bar. Activating the electromagnet causes the electromagnet to engage the strike plate and cause the gate to extend outwardly from the frame. Deactivating the electromagnet allows the spring to return the gate to a non-obstructing position.