Ball Exerciser Grip with Swivel Coupling
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Solution Overview
Problem
Conventional ball exercisers with roughened surfaces or finger holes are inconvenient to grasp when rolling, limiting the types of exercises that can be performed due to obstruction of the rolling motion when gripping.
Innovation Solution
A deformable rolling body with a grip system that includes swivelable and frictionally rotatable coupling members, allowing the grip to rotate relative to the rolling axis while maintaining a secure hold, enabling smooth rolling and various exercise modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If grip members are fixed to the ball body to facilitate grasping, then ease of operation is improved, but rolling motion is obstructed limiting exercise modes
Solution Approach 1:
The coupling member is designed to be rotatable relative to the rolling body about the rolling axis, transforming the static fixed grip into a dynamic adjustable grip. This allows the grip orientation to change during rolling motion, enabling both secure grasping and smooth rolling without obstruction, thus resolving the contradiction between ease of operation and adaptability.
2Ease of operation
If roughened outer surface or finger holes are added to improve grip, then ease of operation is improved, but rolling smoothness deteriorates
Solution Approach 1:
The grip function is segmented from the rolling surface by placing the coupling member at specific locations (upper and lower lateral borderlines) rather than roughening the entire outer surface. This allows the grip areas to be distinct from the rolling contact areas, enabling both secure grasping and smooth rolling without the trade-off inherent in surface roughening.
3Adaptability or versatility
If grip segment is positioned away from lateral mount wall to allow swiveling, then adaptability is improved, but structural stability may worsen
Solution Approach 1:
The coupling member acts as an intermediary between the lateral mount wall and the grip segment, providing a rotational joint that allows swiveling motion. This intermediary structure enables the grip to move independently while maintaining secure attachment to the rolling body, achieving both adaptability and structural stability.
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
Enables smooth rolling and versatile exercise performance by allowing the grip to swivel relative to the rolling body, accommodating different exercise requirements and muscle training without obstructing the rolling motion.
Implementation Method 1
movable coupling member has a movable coupling end which is disposed to be swivelable and frictionally rotatable relative to the stationary coupling end about the rolling axis
Data Source
AI summary
A ball exerciser includes a deformable rolling body having an outer surrounding wall surface and at least one lateral mount wall, a rigid stationary coupling member secured to the lateral mount wall and having a stationary coupling end distal from the lateral mount wall, a movable coupling member having a movable coupling end disposed to be swivelable and frictionally rotatable relative to the stationary coupling end about a rolling axis, a grip including a grip segment which is spaced apart from the lateral mount wall and which is coupled to the movable coupling end so as to permit the grip segment to swivel with the movable coupling member.