Starting Block Lock Wedge Expansion for Anchor Stability
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Solution Overview
Problem
Existing starting blocks experience wobbling issues due to insecure fastening within conventional anchor assemblies, requiring specialized and costly replacement systems that are not universally compatible with all starting block stems.
Innovation Solution
A starting block lock system featuring a slotted stem with expandable locking wedges and a clamp mechanism that secures the stem within a conventional anchor, using a rotating rod to expand the clamp and wedges against the anchor's inner walls, ensuring a stable connection without the need for specialized anchor assemblies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional anchor assemblies are used without specialized fastening systems, then device complexity is reduced and compatibility is improved, but the starting block stem becomes insecure and wobbles
Solution Approach 1:
The starting block stem is divided into a main body and a separate lockable insertion end portion. The insertion end portion contains the locking mechanism with expandable wedges and clamp, separating the fastening function from the main stem structure. This allows the stem to work with conventional anchors while providing secure fastening through the integrated locking components.
Solution Approach 2:
The locking mechanism uses dynamically expandable wedges and clamp that can adjust their size and shape. The wedges can be expanded or contracted along the longitudinal axis, and the clamp can expand radially, allowing the mechanism to adapt to different anchor configurations while maintaining a secure fit. This dynamic adjustment capability ensures reliable fastening across various conventional anchor types.
2Reliability
If specialized anchor assemblies with wedge assemblies are used, then the starting block stem is securely fastened, but device complexity and cost increase
Solution Approach 1:
The locking mechanism merges multiple functions into a single integrated assembly. The clamp, wedges, and retention features are combined into one unit that attaches to the starting block stem and interfaces with conventional anchors. This consolidation provides secure fastening without requiring multiple separate specialized components, reducing overall device complexity while maintaining reliability.
Solution Approach 2:
The locking mechanism is designed to be universally compatible with conventional anchor assemblies while providing specialized secure fastening functionality. The mechanism can work with standard anchors rather than requiring proprietary anchor systems, reducing complexity by eliminating the need for specialized anchor assemblies while still achieving reliable stem fastening.
3Reliability
If specialized post/anchor connections are used, then the starting block stem is securely fastened, but adaptability to different stem types is reduced
Solution Approach 1:
The locking mechanism applies localized securing features at the insertion end portion of the stem. The clamp and wedges engage with specific local features of the stem (such as the slot and outer surface) rather than requiring specialized features throughout the entire stem. This localized approach allows different stem types to be used while maintaining secure fastening capability.
Solution Approach 2:
The locking mechanism is designed with universal compatibility features that allow it to work with various stem types and configurations. The clamp can accommodate different stem diameters, and the wedges can adjust to different insertion end geometries. This universality enables the same locking mechanism to securely fasten different starting block stem types while maintaining adaptability.
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 system provides a secure and stable locking mechanism for starting block stems within conventional anchors, preventing wobbling and allowing for easy installation and removal without the need for costly replacements, while being compatible with various stem diameters and anchor depths.
Implementation Method 1
The locking wedges may be linearly displaced to expand the clamp against the stem and the stem may expand against the inner walls of the anchor to lock the stem within the anchor
Data Source
AI summary
A starting block lock having a clamp, top and bottom locking wedges, and a rod is provided. The clamp includes top and bottom portions each having an inside surface and a body between the top and bottom portions. The body includes a cylindrical bore extending on a longitudinal axis between the top and bottom portions. The top and bottom locking wedges each include an outer surface, an inner surface, a side surface, and an aperture extending between and through the outer and inner surfaces. At least a portion of each of the side surfaces slidably contact the inside surface of the clamp. The rod extends through the apertures and the cylindrical bore and is configured rotate in a first direction to linearly displace the top and bottom locking wedges toward each other thereby providing an outward force against the inside surfaces of the clamp to expand the clamp.