Spring Element Stabilization in Freely Moveable Strength Training Device
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Mobile strength training devices with spring elements often experience undesired springback due to steep inclination of the pull bar, leading to inefficient training as the spring clip seeks the path of least resistance during increased effort.
Innovation Solution
The device features at least two pull elements fastened directly to the spring element, eliminating direct attachment to the housing and allowing linear force application, which secures the spring element between the pull elements and reduces transverse forces, along with a sandwich construction for easy handling and disinfection, and a displacement part to adjust lever arm and resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the pull bar is attached to the housing and guided against a displaceable spring clip, then the device structure is simplified, but the spring clip seeks the path of least resistance and springs back to the initial position during training when larger effort is applied
Solution Approach 1:
The invention divides the force application system into multiple pull elements (at least two) that are fastened directly to the spring element rather than to the housing. This segmentation allows forces to be applied linearly onto the spring element from multiple directions, preventing the spring clip from seeking the path of least resistance while maintaining structural simplicity
Solution Approach 2:
The spring element serves as an intermediary between the pull elements and the housing. By fastening pull elements directly to the spring element rather than to the housing, the spring element mediates the force transmission, ensuring that forces are applied directly onto the spring element in a linear manner, which stabilizes the spring element between the pull elements and eliminates transverse forces
2Force
If the pull bar assumes a steep inclination during larger effort, then the user can apply more force, but the spring clip undesirably springs back to the initial position in the middle of training
Solution Approach 1:
The invention allows the spring element to be dynamically loaded by multiple pull elements that can be actuated in different directions. The spring element absorbs and distributes forces dynamically, maintaining its position stability even when users apply larger efforts through steep inclinations, as the spring element is securely held between the pull elements
3Ease of manufacture
If the housing is made from plate elements in a sandwich construction, then the device allows easy disinfection and cleaning, but the housing structure becomes more open and may appear less robust
Solution Approach 1:
The housing is segmented into plate elements arranged in a sandwich construction with parallel orientations. This segmentation creates an open structure that facilitates easy cleaning and disinfection by allowing access to internal surfaces, while the layered plate structure maintains structural strength through distributed load bearing
Solution Approach 2:
The sandwich construction uses multiple plate elements layered together to create a composite structure that combines ease of cleaning with structural robustness. The parallel plate arrangement provides both access for disinfection and sufficient mechanical strength for the housing
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 ensures secure and controlled resistance, allowing for effective muscle training with adjustable resistance levels, enhanced durability, and ease of cleaning, suitable for clinical and space applications, while minimizing wear and allowing various movement types.
Implementation Method 1
at least one spring element arranged in the housing, which can be loaded by means of muscular strength
Data Source
AI summary
A freely movable strength training device for strengthening the body musculature can be loaded by pulling. The device has a housing and at least one spring element arranged in the housing, which can be loaded via muscular strength. The device has at least two pull elements which can be actuated by a user. All pull elements are fastened on the spring element.