Adjustable Pedal Units for Oblique Orbital Exercise Machines
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Solution Overview
Problem
Conventional sitting type oblong orbital exercising machines cause discomfort due to pedal extension and have a fixed, non-adjustable movement trace, limiting user versatility.
Innovation Solution
The design includes a main frame with a cycle movement mechanism, slide rail, guiding tracks, and adjustable pedal units with springs and an ergonomic orientation, allowing for elastic movement and adjustable positions via a rotatable adjusting disk mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the pedals are moved to the front portion of the main frame, then the oblong orbital movement is achieved, but the user's foot abuts the front part of the pedal causing discomfort
Solution Approach 1:
The patent applies the dynamics principle by making the pedal units adjustable in position along the drive bars. The pedal units can be moved forward or backward relative to the drive bar ends, allowing the pedal position to be dynamically adjusted to match different user leg lengths and exercise intensities. This resolves the contradiction by enabling the pedal to reach the front portion for oblong orbital movement while preventing foot abutment through proper positioning.
Solution Approach 2:
The patent implements parameter changes by allowing adjustment of the pedal unit position parameter along the drive bar. The distance between the pedal and the front of the main frame can be changed to optimize both the oblong orbital movement trajectory and user comfort. This enables the system to adapt the pedal position parameter to eliminate foot abutment discomfort while maintaining the desired movement pattern.
2Device complexity
If the pedal units are fixed in position, then the structure is simple, but the movement trace cannot be adjusted limiting versatility
Solution Approach 1:
The patent applies dynamics by introducing adjustable pedal units that can be repositioned along the drive bars. The adjustment mechanism includes movable pedal units with locking features, allowing users to change the pedal position to create different movement traces. This maintains relatively simple structure while enabling multiple movement patterns including oblong orbital, circular, and linear trajectories.
Solution Approach 2:
The patent implements universality by designing pedal units that can perform multiple functions through position adjustment. The same pedal unit structure can create different movement traces (oblong orbital, circular, linear) by changing its position along the drive bar, eliminating the need for multiple specialized components and enhancing overall system versatility.
3Ease of operation
If the pedal units are made adjustable with springs and rocking plates, then user comfort and ergonomics are improved, but the device complexity increases
Solution Approach 1:
The patent applies beforehand cushioning by incorporating springs between the pedal units and drive bars. These springs provide elastic cushioning that absorbs impact forces and reduces stress on the user's feet and legs during exercise. This improves ergonomic comfort by providing a softer, more forgiving pedal interface while managing the complexity through efficient spring integration.
Solution Approach 2:
The patent implements dynamics through rocking plates that allow the pedal units to pivot and adapt to user foot placement. The rocking plate mechanism enables dynamic adjustment of pedal orientation and position during exercise, improving ergonomics by accommodating natural foot movement. The complexity is managed by using simple pivot connections rather than complex mechanical systems.
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
The solution provides a comfortable and adjustable oblong orbital movement, allowing users to easily adjust pedal positions and movement traces, enhancing user experience and versatility.
Implementation Method 1
two springs biased between the fixing plate and the rocking plate
Data Source
AI summary
An oblong orbital exercising machine includes a main frame, an upright, a seat support, a cycle movement mechanism, two swinging handles, two drive bars, two pedal units and two adjustment units. Each of the pedal units includes a fixing plate, a rocking plate, two springs, two fastening rods and a pedal. Each of the two adjustment units includes a fixed disk, an adjusting disk, two limit stubs, a hollow rod, a hollow mounting sleeve and a positioning pull pin. Thus, when the pedal units are moved in concert with the drive bars, the pedal of each of the pedal units is adjusted to correspond to the oblong trace of movement. In addition, the user can adjust the position of each of the pedal units easily and quickly by operation of each of the two adjustment units.