Rotary Training Machine Synchronization Control

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Solution Overview

Problem

Existing rotary training machines fail to provide a balanced and synchronized training of human shoulder girdle, pelvic girdle, and trunk muscles, leading to nonuniform load distribution and insufficient training of shoulder girdle muscles.

Innovation Solution

The training machine incorporates rotational speed measurement means for the shafts of hand and leg pedals, coupled with a control unit that adjusts the load by generating additional load proportional to the difference in rotational speeds, ensuring synchronization and balanced movement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If rotary training machines perform only elliptical movements of feet and reciprocal movements of wrists, then lower limbs and upper limbs are trained, but full rotation and bending of vertebral column is not achieved, and shoulder girdle muscles are insufficiently trained

Engineering Contradiction:

Improvetraining coverageVSAvoidtraining balance

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The training machine enables dynamic adjustment of movement patterns through variable resistance mechanisms. The load modules can be independently adjusted to create different movement dynamics, allowing transition from simple elliptical/reciprocal movements to more complex patterns that include vertebral column rotation and bending, thereby achieving comprehensive muscle group engagement

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system employs adjustable resistance parameters in the load modules that can be modified during training. By changing the resistance characteristics and movement parameters, the machine enables diverse training modes including those that specifically target shoulder girdle muscles through overhead pressing movements and engage the vertebral column through rotational and bending exercises

Inventive Principle:

Principle #35Parameter changes

2Productivity

If upper limbs perform very small amount of work compared to lower limbs, then lower limbs are effectively trained, but nonuniform load distribution occurs, leading to imbalance in training of different muscle groups

Engineering Contradiction:

Improvetraining efficiencyVSAvoidload distribution uniformity

Core Design Contradiction:

ProductivityVSEase of operation

Solution Approach 1:

The control system continuously monitors the work performed by upper and lower limbs through sensors detecting movement parameters and resistance forces. Based on this feedback, the system automatically adjusts the resistance in each load module to achieve uniform load distribution, ensuring that upper limbs receive adequate training stimulus proportional to their capacity

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The resistance characteristics of the load modules are dynamically adjusted during training based on real-time performance data. The system modulates the resistance applied to upper and lower limbs to maintain balanced workload distribution, preventing overtraining of lower limbs while ensuring sufficient engagement of upper limb muscles

Inventive Principle:

Principle #15Dynamics

3Adaptability or versatility

If load level is adjusted manually by user before training, then individualized training is possible, but additional time and effort are required, and training efficiency is reduced

Engineering Contradiction:

Improveindividualized trainingVSAvoidsetup time

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The training machine performs automatic load adjustment based on real-time monitoring of user performance. The control system independently determines and modifies resistance levels in the load modules according to detected movement parameters and training objectives, eliminating the need for manual intervention and enabling continuous adaptive individualized training

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The manual mechanical adjustment system is replaced with an automated electronic control system that uses sensors and actuators to dynamically modify resistance. This substitution of mechanical adjustment with electronic control enables rapid, precise, and continuous load adaptation without user intervention, significantly reducing setup time while maintaining individualized training programs

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS20250065183A1A training machine for a simultaneous training of human shoulder girdle, pelvic girdle, and trunk muscles (variants)

Publication Date: 2025.02.27 SOLODOVNIK SERGII ANATOLIYOVYCH

AI summary

The invention (variants) relates to a field of sports and medicine, and it concerns training devices, namely, rotary training machines which are used for a simultaneous training of human should, pelvic girdles, and trunk muscles. The claimed invention is based on a task to create a rotary multi-function training machine for the simultaneous training of human shoulder girdle, pelvic girdle, and trunk muscles, while involving all groups of muscles in a balanced manner in order to provide a high quality and efficiency of the trainings at different usage modes of the training machine due to maintaining a synchronization of a rotation of shafts of load modules of the training machine by adjusting a relationship between their rotational speed and efforts applied thereto.