Stepper Exercise Resistance Adjustment via Cylinder Positioning
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Solution Overview
Problem
Conventional stepper exercise machines lack an efficient mechanism for adjusting exercise resistance levels, limiting user flexibility in simulating varying intensity workouts.
Innovation Solution
The stepper exercise apparatus incorporates an exercise resistance adjustment assembly that allows users to incrementally adjust resistance by modifying the distance between the pedals and cylinders through mechanisms such as rocker levers, gear systems, and actuator shafts, enabling customizable resistance settings for each leg independently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional stepper exercise machines use fixed hydraulic cylinders, then the structure is simple, but the exercise resistance cannot be adjusted
Solution Approach 1:
The patent applies dynamics by making the previously fixed hydraulic cylinder position adjustable. The adjustment assembly allows the hydraulic cylinder to be repositioned along the pedal arm, changing the moment arm length and thus the exercise resistance. This transforms a static system into a dynamic one where resistance can be modified during operation.
Solution Approach 2:
The invention changes the physical parameter of the hydraulic cylinder position relative to the pedal pivot point. By adjusting the distance between the hydraulic cylinder attachment point and the pedal pivot, the mechanical advantage and exercise resistance are altered, providing variable intensity workouts.
2Adaptability or versatility
If the hydraulic cylinder position is fixed on the pedal, then the structure is simple, but the resistance setting cannot be customized for each leg
Solution Approach 1:
The patent segments the adjustment mechanism into independent components for each leg. Each pedal assembly has its own adjustment assembly, allowing independent resistance customization for each leg without affecting the other side. This segmentation enables personalized workout programs for rehabilitation or asymmetric training.
Solution Approach 2:
The adjustment assembly is designed as a universal mechanism that can be applied to both left and right pedals with the same design. This multi-functional approach allows the same adjustment mechanism to serve both legs independently, reducing overall system complexity while providing customized resistance for each side.
3Adaptability or versatility
If no adjustment mechanism is provided, then the device is simple to operate, but user flexibility in workout intensity is limited
Solution Approach 1:
The adjustment mechanism is designed to be user-operable without requiring technical expertise. Users can independently adjust the hydraulic cylinder position and lock it in place using the provided mechanism, enabling self-service customization of workout intensity according to their fitness level and goals.
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 solution provides users with a flexible and customizable workout experience by allowing precise adjustment of exercise resistance, accommodating different fitness levels and simulating varied intensity exercises effectively.
Implementation Method 1
Two cylinders are pivotally connected to the two pedals and to the frame. The cylinders provide exercise resistance to the force alternatively applied to the pedals by the user.
Data Source
AI summary
A stepper exercise apparatus may include a frame pivotally supporting two pedals connected to the frame. Two cylinders are pivotally connected to the two pedals and to the frame. The pedals may be interconnected to move in coordinated movement in opposite directions. The cylinders provide exercise resistance to the force alternatively applied to the pedals by the user. An exercise resistance adjustment assembly may be actuated to adjust the exercise resistance setting of the stepper exercise apparatus.