Dual Resistance Exercise Machine Wind Magnetic Structure
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Solution Overview
Problem
Existing exercise machines combining wind resistance and magnetic resistance face limitations in generating sufficient wind resistance due to space constraints, resulting in short blades and inadequate resistance levels.
Innovation Solution
A dual resistance structure featuring a rotating shaft with annularly arranged blades having notches to form a moving space with a magnetic resistance wheel, allowing the magnetic resistance member to move radially and maintain balanced magnetic resistance, while the blades extend beyond the magnetic resistance wheel for increased wind resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the wind resistance unit is installed on the magnetic resistance wheel, then the combination of wind resistance and magnetic resistance enhances exercise effect, but the blade length is limited and wind resistance generated is too small
Solution Approach 1:
The patent transitions from a two-dimensional planar arrangement to a three-dimensional spatial configuration by creating a through-hole in the magnetic resistance wheel and positioning the wind resistance unit axially. This dimensional change allows the blade to extend beyond the magnetic resistance wheel's peripheral surface, increasing blade length and wind resistance generation capability while maintaining compact radial footprint.
Solution Approach 2:
The wind resistance unit is nested within the through-hole of the magnetic resistance wheel, with the blade arranged inside the through-hole and extending outward. This nesting arrangement allows both the magnetic resistance wheel and wind resistance unit to occupy overlapping spatial volumes, maximizing space utilization and enabling longer blades without increasing the overall device footprint.
2Force
If the magnetic resistance member is adjusted toward the magnetic resistance wheel, then magnetic resistance is increased, but the wind resistance unit may hinder the adjustment
Solution Approach 1:
The patent extracts the wind resistance unit from the peripheral surface of the magnetic resistance wheel and relocates it into the through-hole structure. This separation creates independent adjustment spaces, allowing the magnetic resistance member to move along the radial direction without interference from the wind resistance unit, ensuring smooth adjustment operation.
3Adaptability or versatility
If the magnetic resistance wheel is made larger to avoid hindering adjustment, then the wind resistance unit can be detachably disposed, but the blade length is still limited
Solution Approach 1:
By utilizing the axial dimension through the through-hole configuration, the patent enables the blade to achieve greater length without increasing the radial size of the magnetic resistance wheel. This maintains the compact structure needed for detachable configurations while simultaneously enabling longer blades for enhanced wind resistance.
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 design enhances exercise effectiveness by providing greater wind resistance and balanced magnetic resistance, preventing deformation of the magnetic resistance wheel and allowing for adjustable resistance levels.
Implementation Method 1
a magnetic resistance member (31) movable relative to the magnetic resistance wheel (32) along a radial direction of the magnetic resistance wheel to adjust a magnetic resistance of the magnetic resistance wheel (32)
Implementation Method 2
a wind resistance unit (2) disposed on the rotating shaft (1)... a plurality of blades (21) arranged annularly... generating wind resistance
Data Source
AI summary
An exercise machine and a dual resistance structure combining wind resistance and magnetic resistance are disclosed. The dual resistance structure combining wind resistance and magnetic resistance includes a rotating shaft, a wind resistance unit, and a magnetic resistance unit. The wind resistance unit is disposed on the rotating shaft, and includes blades arranged annularly. Each blade has a notch recessed in an axial direction of the rotating shaft. The magnetic resistance unit includes a magnetic resistance member and a magnetic resistance wheel. The magnetic resistance wheel is disposed on the rotating shaft. The notch of each blade faces the magnetic resistance wheel to form a moving space between the magnetic resistance wheel and the notch. When the magnetic resistance member is moved relative to the magnetic resistance wheel along a radial direction of the magnetic resistance wheel, part of the magnetic resistance member is movable in the moving space.