Adjustable Barbell Gear Selector for Automated Weight Changes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional free weights, such as dumbbells and barbells, require time-consuming and potentially hazardous manual adjustments to change weight, necessitating multiple weights for varied exercises and user decision-making.
Innovation Solution
An adjustable barbell system with a handle assembly and weight selector mechanism that allows users to easily adjust weight by rotating a selector knob, engaging removable weights based on the knob's position, and utilizing a gear assembly to convert rotation to axial movement, with automatic unlocking and retention features for safe and efficient weight changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional free weights are used, then users can perform a wide variety of exercises, but weight adjustment is time-consuming and potentially hazardous
Solution Approach 1:
The weight selector assembly automatically engages or disengages weight plates with the bar handle through rotation of the selector knob, eliminating the need for manual handling and assembly of weight plates by the user
Solution Approach 2:
The patent replaces the manual mechanical assembly/disassembly process with an automated mechanical selection system where rotating the selector knob actuates a weight engagement mechanism that automatically couples or decouples weight plates
2Adaptability or versatility
If traditional free weights are used, then users can perform varied exercises, but multiple separate weights are needed
Solution Approach 1:
The bar handle assembly with the weight selector mechanism can selectively engage with weight plates of different weights, making a single bar handle versatile for multiple exercise weights and routines without requiring separate dedicated bars for each weight
3Ease of operation
If manual weight adjustment is used, then users can change weights, but decision-making and assembly complexity increases
Solution Approach 1:
The weight selector assembly automatically performs the complex task of engaging or disengaging weight plates based simply on rotating the selector knob, eliminating the need for users to manually assemble or disassemble weight plates
4Ease of operation
If manual weight adjustment is used, then users can change weights, but safety risks increase
Solution Approach 1:
The automated weight selection mechanism eliminates hazardous manual actions such as pinching fingers between plates, dropping plates on feet, or improper handling during weight changes
Solution Approach 2:
The weight selector assembly includes features that prevent accidental disengagement of weight plates during exercise, and the base includes retention features that prevent removal of the bar unless properly positioned, anticipating and preventing potential safety failures
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
Facilitates quick, safe, and precise weight adjustments without manual handling, enhancing user convenience and safety by automating the weight selection process.
Implementation Method 1
a gear assembly configured to convert the rotation of the selector ring to an axial movement of the rod. The gear assembly may include a main bevel gear fixed to the selector ring, a rack provided on (e.g., extending along the length of) the rod, a pinion gear operatively associated with the rack, and a plurality of intermediate gears operatively engaged between the main bevel gear and the rack
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An adjustable barbell system may include a base, two or more weights, a handle assembly, an additional weight, and selection assembly. The two or more weights may be supported by the base and grouped into a first set of weights associated with one end of the barbell system and a second set of weights associated with an opposing end of the barbell system. The handle assembly may be selectively fixedly joined to the first and second set of weights. The additional weight may be disposed distally of the handle assembly. The selection assembly may be secured to the additional weight. The selection assembly may include a selection member that may be linearly moveable between a selected position where the additional weight is operatively secured to the handle assembly and an unselected position where the additional weight is disengaged from the handle assembly.