Asymmetric Eccentric Muscle Stimulation Device
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Solution Overview
Problem
Existing muscle stimulation devices, such as the dumbbell with vibrating barbell, are limited in their application scope and do not offer additional training or therapy possibilities beyond muscle building for the biceps and triceps.
Innovation Solution
A muscle stimulation device with a handlebar and a motor-driven eccentric body, where the center of gravity is offset from one end, allowing for varying vibration strengths and enabling the device to be used as both a training and therapy tool by concentrating vibrations on a massage head.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the center of gravity of eccentric bodies is positioned in the middle between the two ends of the handlebar, then the handlebar vibrates evenly, but the device is limited to training applications only
Solution Approach 1:
The patent applies asymmetry by positioning the common center of gravity of the eccentric bodies at a different distance from the first end of the handlebar than from the second end. This asymmetric configuration causes the handlebar to generate vibrations of different strengths at the two ends, enabling the device to concentrate vibrations on one end for therapy or massage applications while maintaining training capabilities, thus expanding the application range without significantly increasing structural complexity
Solution Approach 2:
The patent implements multi-functionality by designing the handlebar with asymmetric eccentric body placement that enables both training and therapy/massage modes. The same basic structure with modified center of gravity positioning allows the device to serve multiple purposes: traditional muscle training when used symmetrically and vibration-based therapy/massage when used asymmetrically, eliminating the need for separate devices for different functions
2Adaptability or versatility
If symmetric eccentric bodies are used, then the device functions as a dumbbell for muscle building, but it cannot provide therapy or massage functions
Solution Approach 1:
The patent uses asymmetry in the placement of eccentric bodies to enable therapy and massage functions. By positioning the common center of gravity closer to one end of the handlebar, the device creates concentrated vibrations at that end, allowing it to function as a vibration machine for therapy and massage while maintaining its dumbbell capability for training when used with appropriate weights and techniques
Solution Approach 2:
The patent applies dynamics by allowing the device to adapt its vibration characteristics based on usage mode. The asymmetric eccentric body configuration enables the handlebar to dynamically adjust vibration patterns - providing concentrated vibrations for therapy/massage when needed while maintaining balanced vibrations for training, all within the same operational framework without requiring complex controls
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 a broader range of applications including physical therapy, prevention, massage, veterinary, and medical uses, with interchangeable heads optimized for specific applications, providing effective muscle stimulation and massage through adjustable vibrations.
Implementation Method 1
a motor (6), which is arranged in a cavity of the handlebar (2) and is coupled to at least one eccentric body (8) by means of a motor shaft (7), in order to cause the muscle stimulation device (1) to vibrate due to an imbalance in the eccentric body (8) to move
Data Source
Figure 1~5
Figure 2
Figure 7~9
AI summary
The invention relates to a muscle stimulation apparatus comprising a handle (2) with a first and a second end as well as a motor (6) that is disposed in a hollow chamber of the handle (2) and is coupled to at least one eccentric element (8) by means of a motor shaft (7) in order to cause the muscle stimulation device (1) to vibrate as a result of an unbalance of the eccentric element (8). According to the invention, the eccentric element/s (8) is/are provided with a common center of gravity whose distance from the first end of the handle (2) is different from the distance from the second end of the handle (2). The invention further relates to a replacement head for such a muscle stimulation apparatus.