Automated Weight Selection in Exercise Devices
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Solution Overview
Problem
Conventional weight training devices with adjustable weights disrupt the training activity due to the need for manual adjustments, causing pauses and inefficiencies.
Innovation Solution
An exercise device with a shell assembly, base assembly, and shaft that allows for automatic weight selection through a driver system, enabling users to choose desired weights without interrupting their workout, and can be integrated into a system for coordinated or individual use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual weight adjustment is used on free weight devices, then weight can be changed, but training activity is disrupted causing pauses and inefficiencies
Solution Approach 1:
The driver mechanism is pre-positioned on the base assembly and automatically engages with the shaft when the shell is placed on the base. Weight selection is made in advance through the input device, and the driver automatically adjusts the shaft position to couple with the desired weight before the user begins their workout, eliminating mid-workout adjustment pauses
Solution Approach 2:
The system performs self-adjustment through the driver automatically rotating the shaft based on user input from the input device. The mechanism serves itself by detecting the desired weight selection and mechanically engaging the appropriate weight without requiring manual intervention, thus maintaining training continuity
2Ease of operation
If manual weight adjustment is used, then weight can be selected, but substantial pause in training activity occurs
Solution Approach 1:
The manual mechanical adjustment process is replaced with an automated electromechanical system. The driver, controlled by the input device, automatically rotates the shaft to engage the selected weight, substituting the need for manual weight plate addition/removal with an automated positioning mechanism that reduces adjustment time
Solution Approach 2:
The user selects the desired weight in advance through the input device before beginning their workout routine. The system then automatically positions the shaft to engage the selected weight beforehand, so when the user starts exercising, the correct weight is already in place, eliminating mid-workout interruptions
Data Source
AI summary
Exercise devices, systems, and methods are disclosed. One exercise device includes weights, a shell assembly, and a base assembly. The shell assembly has a shell defining an interior sized to receive the weights. The shell assembly also has a shaft coupled for rotation relative to the shell. When the weights are received within the interior of the shell, rotation of the shaft relative to the shell selectively couples the shaft with one or more weights. The base assembly has a base configured to support the weights. The base assembly also has a driver configured to be coupled to the shaft when the shell assembly is supported by the base. The driver of the base assembly is configured to rotate the shaft relative to the shell when the driver is coupled to the shaft to selectively couple the shaft with the one or more weights.