Adjustable Exercise Device With Rotatable Arm And Elastic Resistance
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Solution Overview
Problem
Conventional exercise devices have limited application ranges due to complex structures, high manufacturing costs, and lack of simplicity in operation, making them difficult for users to adjust exercise resistance effectively.
Innovation Solution
A multiple position adjustable exercise device featuring a first member, a second member, and an elastic member, where the second member is pivotally connected to the first member, and an elastic member is twisted, stretched, or compressed to provide adjustable exercise resistance, incorporating a spring sleeve, tooth sleeve, and compression spring for adjustable initial positions and resistance levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional recovering structure is used, then exercise resistance can be provided, but the structure is too complicated and manufacturing cost is high
Solution Approach 1:
The device is divided into independent functional modules: a first member (base), a second member (rotatable arm), and an elastic member (resistance mechanism). This segmentation allows each component to be manufactured separately using simple processes, reducing overall manufacturing cost while maintaining functional integrity.
Solution Approach 2:
The patent extracts the essential function of providing exercise resistance by using only a basic elastic member (spring) instead of complex recovering structures. By taking out the non-essential complicated components from conventional designs, the device achieves resistance provision with simplified structure and lower manufacturing cost.
2Ease of operation
If conventional recovering structure is used, then exercise resistance can be provided, but the operation is not simple and user adjustment is difficult
Solution Approach 1:
The second member is designed to be rotatable relative to the first member, allowing dynamic adjustment of the initial position. This dynamic capability enables users to easily adjust exercise resistance by simply rotating the second member to different angular positions, making the operation simple while providing variable resistance levels.
Solution Approach 2:
The exercise resistance is adjusted by changing the initial position parameter (angular position) of the second member relative to the first member. By varying this geometric parameter, users can control the amount of resistance provided by the elastic member without complex controls or mechanisms, achieving simple operation with effective resistance adjustment.
3Adaptability or versatility
If the structure is simplified, then manufacturing cost is reduced, but the application range is limited
Solution Approach 1:
The simplified device structure achieves multi-functionality by allowing the second member to rotate through multiple positions, enabling various exercise modes (e.g., different muscle groups, different resistance levels). This universal design lets a single simple structure serve multiple exercise applications, expanding the application range without increasing structural complexity.
Solution Approach 2:
The rotatable second member provides dynamic adaptability, allowing the device to be adjusted for different exercise requirements. Users can change the initial position of the second member to suit different muscle groups and exercise intensities, making the simple structure adaptable to a wide range of applications.
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
The device allows for adjustable exercise resistance by varying the elastic recovering force, enabling users to experience different resistance levels through simple operation and structure, reducing manufacturing costs while expanding the device's application range.
Implementation Method 1
The elastic member is coupled with the first member and the second member, and when the second member rotates relative to the first member, the elastic member is twisted, stretched or compressed for providing an elastic recovering force
Implementation Method 2
the elastic member is a torque spring
Implementation Method 3
When the switch is linked to release the compression spring, the tooth sleeve is pushed to be combined with the spring sleeve through an elastic recovering force of the compression spring
Data Source
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AI summary
A multiple position adjustable exercise device includes a first member, a second member and an elastic member. The second member is pivotally connected with the first member. The elastic member is coupled with the first member and the second member, and when the second member rotates relative to the first member, the elastic member is twisted, stretched or compressed for providing an elastic recovering force. An initial position of the second member relative to the first member is adjustable for adjusting the elastic recovering force.