Add-on Weight Kit Selectorized Dumbbell Single Pin Integration
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Solution Overview
Problem
Users of selectorized dumbbells often outgrow the maximum weight provided by their initial purchase, leading to redundancy and the need for a second, heavier dumbbell, with existing add-on weight kits requiring confusing multiple pinning techniques and separate connecting pins.
Innovation Solution
An add-on weight kit with nested weights and a taller handle that uses a single connecting pin for weight adjustment, allowing seamless integration with the original dumbbell and simplifying the weight selection process by using a consistent pinning technique.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If add-on weights with different pinning technique are used to extend the maximum weight, then the weight capacity is improved, but the operational complexity increases due to requiring two separate connecting pins
Solution Approach 1:
The handle is designed with a universal slot array that can accommodate both the original U-shaped connecting pin and the add-on weight connecting pin using the same pinning technique. This allows the handle to serve multiple functions: connecting original weights and add-on weights, while maintaining operational consistency. The slot array geometry is designed to work with both weight configurations, enabling seamless integration of add-on weights without requiring different pinning methods.
2Weight of moving object
If add-on weights with different pinning technique are used to extend the maximum weight, then the weight capacity is improved, but the device complexity increases due to multiple pinning techniques
Solution Approach 1:
The patent merges the pinning systems of the original dumbbell and add-on weights by designing the handle with slots that accommodate both U-shaped connecting pins and single connecting pins using the same insertion technique. This consolidation reduces the overall system complexity by eliminating the need for separate pinning mechanisms, while still enabling the handle to connect both original and add-on weights effectively.
3Adaptability or versatility
If a taller handle with extended slot array is used to accommodate add-on weights, then the adaptability is improved, but the length of the object increases
Solution Approach 1:
The add-on weights are designed to nest within or alongside the original weights, with the taller handle accommodating both configurations. The slot array in the taller handle is arranged to work with nested weight arrangements, allowing compact storage when not in use while providing extended weight capacity when needed. This nesting approach minimizes the space required while maintaining adaptability.
Data Source
AI summary
An add-on weight kit for a selectorized dumbbell comprises a second set of nested weights that are similar in shape and structure to a first set of nested weights originally provided on the dumbbell. The second set of weights has a plurality of overlying rails that will underlie an array of similar rails carried on the first set of nested weights. The kit includes a second handle having vertically spaced openings with the second handle being used in place of a first handle originally provided on the dumbbell. The openings on the second handle are arranged relative to the rails on the second set of weights such that the same connecting pin as used on the dumbbell to couple the first set of weights to the first handle can be used to additionally couple a selected number of the add-on weights to the second handle.