Scissor-Arm Treadmill Platform With Load-Responsive Vertical Displacement
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Solution Overview
Problem
Conventional treadmills lack the ability to dynamically adjust their platform height in response to user load, leading to inefficient energy transfer and potential instability during exercise, and they often fail to provide real-time speed control and visual feedback.
Innovation Solution
A treadmill with a vertically displaceable platform mechanism, incorporating scissor arms and linear actuators for resistance and rebound control, along with a displacement-based lighting system and position-sensor-based speed control, to dynamically adjust the platform height and provide visual and speed control feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the platform is made fixed and stable, then structural stability is improved, but the ability to dynamically adjust to user load is lost
Solution Approach 1:
The patent implements a vertically displaceable platform mechanism that transitions from a fixed structure to a dynamic one. The platform can move vertically in response to user load through a mechanism involving scissor arms and linear actuators, allowing the system to adapt to changing forces while maintaining controlled stability through the mechanical design and control system.
Solution Approach 2:
The platform incorporates a resistance/rebound mechanism that automatically responds to user load without external intervention. When the user applies force to the platform, the mechanism provides resistance and rebound forces automatically, enabling the system to self-regulate and adapt to user actions in real-time.
2Adaptability or versatility
If the platform is made vertically displaceable to improve adaptability, then dynamic response to user load is improved, but structural stability deteriorates
Solution Approach 1:
The patent employs position sensors to detect the platform's vertical position and user load, feeding this information back to a control system. The control system processes this data and adjusts the linear actuators and resistance/rebound mechanism accordingly, creating a closed-loop feedback system that maintains stability while enabling dynamic responsiveness.
Solution Approach 2:
The scissor arm mechanism serves as an intermediary between the user's direct force application and the platform's vertical displacement. This mechanical intermediary provides mechanical advantage and controlled motion transformation, allowing the platform to respond dynamically to load while maintaining structural stability through the geometric constraints of the scissor mechanism.
3Device complexity
If conventional fixed platform design is used, then device complexity is reduced, but energy transfer efficiency deteriorates
Solution Approach 1:
The resistance/rebound mechanism automatically provides force assistance during user exercise without requiring external power input for each motion cycle. The mechanism stores and releases energy through the displacement of springs or elastic elements, enabling the system to self-generate forces that improve energy transfer efficiency during the user's exercise motion.
4Device complexity
If no visual feedback system is integrated, then device complexity is reduced, but user experience and real-time monitoring capability deteriorate
Solution Approach 1:
The patent integrates a lighting system with LEDs that change color or illuminate based on platform position, user load, and operational status. This visual feedback system provides real-time information to the user about their exercise performance and system state, enhancing user experience and awareness without requiring complex display interfaces.
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
Enhances user experience by providing stable and responsive platform adjustments, maintaining constant belt tension, and allowing for real-time speed adjustments based on user position, improving exercise efficiency and safety.
Implementation Method 1
an intermediate portion of the first scissor arm is pivotally attached to an intermediate portion of the second scissor arm so that pivoting of the first and second scissor arms with respect to one another results in support of the platform at various vertical displacements
Implementation Method 2
a mechanism coupled to the platform and to a base of the treadmill to resist downward movement of the platform in response to a load applied to the platform and also to rebound the platform upward with a force applied to the platform in response to a decrease in load applied to the platform
Data Source
AI summary
A treadmill has a base with a vertically displaceable platform. A mechanism is provided that resists the downward movement of the platform in response to a load applied to the platform. The mechanism also rebounds the platform upwardly with a force applied to the platform in response to a decrease of a load on the platform. A support structure enables stable vertical positioning of the platform with respect to the base.