Rotatable Arm Weight Receiver for Adjustable Exercise Resistance
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Solution Overview
Problem
Current exercise machines lack versatility and adjustability in providing a customizable workout experience, as they often do not allow for easy modification of resistance levels and user comfort during exercise.
Innovation Solution
The exercise machine incorporates a rotatable arm with a handle and weight receiver connected to a pivot, allowing users to attach weights and adjust the resistance, combined with a foot engagement surface that can be a treadmill, elliptical machine, or stair stepper, providing a customizable workout experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If weights are added to modify resistance, then workout customization is improved, but device complexity increases
Solution Approach 1:
The resistance modification system is segmented into modular weight components that can be independently added or removed from the weight receiver, allowing users to customize resistance levels without complicating the overall device structure. Each weight is a separate, standardized unit that interfaces with the arm mechanism through a simple receiver.
Solution Approach 2:
The arm mechanism serves multiple functions: it provides the structural support for the handle, incorporates the weight receiver for resistance adjustment, and enables rotational movement for the exercise motion. This multi-functionality reduces the need for separate components, thereby limiting complexity increase despite adding workout customization capability.
2Adaptability or versatility
If an arm with handle and weight receiver is added, then exercise versatility is improved, but ease of operation deteriorates
Solution Approach 1:
The weight adjustment functionality is extracted as a separate, easily accessible weight receiver component on the arm, allowing users to add or remove weights independently without disassembling or reconfiguring the entire exercise machine. This extraction simplifies the operation of adjusting resistance levels.
Solution Approach 2:
The system is designed to be self-adjusting through its mechanical lever arm principle, where adding weights automatically modifies the resistance applied to the handle without requiring electronic controls or complex adjustment mechanisms. The physics of the lever system performs the resistance adjustment function automatically.
3Adaptability or versatility
If a rotatable arm mechanism is incorporated, then workout customization is improved, but manufacturing complexity increases
Solution Approach 1:
The arm mechanism combines multiple components into a single integrated structure: the arm itself serves as both the structural element and the lever arm for resistance modification, while the weight receiver is incorporated directly onto the arm. This merging reduces the number of separate parts that need to be manufactured and assembled, simplifying production despite the enhanced functionality.
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
This design enables users to modify the resistance level by adding weights and adjust the exercise angle, enhancing user comfort and workout versatility, allowing for a more effective and customizable exercise routine.
Implementation Method 1
The arm includes a handle connected to the arm at a first location distal to the pivot. The handle is configured to be gripped by a user. The arm includes a weight receiver connected to the arm at a second location distal to the pivot.
Data Source
AI summary
An exercise machine. The exercise machine includes a frame, a foot engagement surface operably connected to the frame, and an arm rotatably connected to the frame at a pivot. The arm includes a handle connected to the arm at a first location distal to the pivot. The handle is configured to be gripped by a user. The arm includes a weight receiver connected to the arm at a second location distal to the pivot. The weight receiver is configured to hold one or more weights to modify a downward force provided at the handle.