Ratcheting Weightlifting Belt Structure to Prevent Off-Axis Flexing
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Solution Overview
Problem
Traditional weightlifting belts suffer from off-axis flexing and deformation, compromising stability and adjustability, especially in ratcheting belts, which lack mechanisms to ensure structural rigidity and uniform constraint.
Innovation Solution
A weightlifting belt design featuring a T-shaped ratchet with L-shaped engagement surfaces and a buckle assembly that includes L-shaped rail elements, a first pawl for incremental tightening, and a second pawl for locking, preventing off-axis deformation by ensuring stable engagement between the belt ends.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional prong-based belt buckle is used, then the belt can be adjusted to different sizes, but the adjustability is limited by the number and spacing of holes and the buckle is cumbersome to use and secure under load
Solution Approach 1:
The patent replaces the conventional prong-based mechanical buckle system with a ratcheting mechanism that uses a ladder strap with teeth and a ratchet assembly. This substitution enables continuous adjustability without being constrained by pre-drilled holes, while the ratcheting action provides secure locking under load with one-handed operation.
Solution Approach 2:
The invention changes the adjustment parameter from discrete hole positions to continuous positioning along the ladder strap. The ratchet teeth engage with the ladder strap at any position, allowing infinite adjustability within the strap length rather than being limited to fixed hole spacing.
2Ease of operation
If lever belts are used to improve ease of tightening under heavy load, then the belt can be tightened more easily, but the adjustability remains limited by the number and spacing of holes
Solution Approach 1:
The patent replaces the hole-based adjustment system with a ratcheting mechanism that engages teeth on the ladder strap. This allows the lever to tighten the belt at any position along the strap length, providing continuous adjustability rather than discrete hole positions, while maintaining the ease of lever operation under heavy load.
3Adaptability or versatility
If ratcheting belts are used to provide precise and incremental size adjustments, then adjustability is improved, but the belt experiences off-axis flexing and deformation that reduces overall support
Solution Approach 1:
The patent segments the engagement mechanism into multiple independent components: the ladder strap with teeth provides longitudinal engagement, while the T-shaped ratchet with perpendicular flanges provides lateral engagement. This segmentation allows each component to specialize in preventing specific types of movement, collectively eliminating off-axis flexing and deformation.
Solution Approach 2:
The invention adds a perpendicular dimension to the ratchet engagement by using T-shaped flanges that extend laterally from the main ratchet body. These flanges engage with corresponding channels in the ladder strap, preventing off-axis movement in the lateral direction while the main ratchet teeth prevent movement in the longitudinal direction, thus stabilizing the belt in multiple dimensions.
4Stability of the object's composition
If a metal clamp is used to hold the strap in place to address stability concerns, then some stability is provided, but the clamp presses against the user's belly causing discomfort and is insufficient to provide structural stability
Solution Approach 1:
The patent extracts the stability function from the metal clamp and distributes it across multiple engagement surfaces: the ladder strap teeth engage the ratchet teeth for longitudinal stability, while the T-shaped flanges engage lateral channels for lateral stability. This extraction eliminates the need for the uncomfortable metal clamp pressing against the user's belly, as stability is achieved through the ratcheting mechanism itself.
Data Source
AI summary
A weightlifting belt that mitigates or eliminates off-axis deformation and flexing is disclosed, the belt having a recessed T-shaped ratchet to form L-shaped engagement surfaces on one side of the strap, and the belt further having a buckle assembly with L-shaped rail elements and two pawls on the other side of the strap.