Manual Resistance Exercise Machine Crank Control
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Solution Overview
Problem
Existing exercise machines lack safety and efficiency in manual control and resistance adjustment, often relying on gravity for resistance, which can lead to injury during exercises like bench lifts, and fail to provide a user-friendly, manually controlled, and efficient training experience.
Innovation Solution
A manually controlled and driven resistance exercise machine with a horizontal platform and vertical tower containing a rope, gears, and pulleys, where a second person controls the resistance and velocity using a crank or wench, preventing sudden weight drops and allowing for adjustable resistance and multiple exercise protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If gravity is used for resistance in traditional exercise machines, then the machine structure is simple, but the safety is poor because users can drop substantial weight on themselves
Solution Approach 1:
The patent replaces the gravity-based resistance system with a manual control system using a crank mechanism. Instead of relying on gravitational force that can cause uncontrolled weight drops, the system uses mechanical advantage through the crank to provide controlled, adjustable resistance. The rope connects the user's exercise motion to the crank mechanism, allowing manual regulation of resistance force throughout the exercise range of motion.
Solution Approach 2:
The patent introduces a rope as an intermediary element that transmits force between the user and the resistance mechanism. The rope connects the exercise bar to the crank mechanism, serving as a mediator that transfers and regulates force. This intermediary allows the user to exert force while the crank mechanism controls the resistance, preventing direct uncontrolled weight drops on the user.
2Ease of operation
If manual control of resistance is added to exercise machines, then safety and control are improved, but the device complexity increases
Solution Approach 1:
The patent implements a self-service control mechanism where the user themselves operates the crank during the exercise. The user manually controls the resistance by turning the crank in response to their exercise motion, eliminating the need for external operators or complex electronic control systems. This self-service approach simplifies the control mechanism while maintaining manual regulation capability.
3Reliability
If a second person controls the resistance using a crank mechanism, then the exercise control and safety are improved, but the device complexity and operational difficulty increase
Solution Approach 1:
The patent creates a dynamic control system where the resistance is continuously adjustable during the exercise based on real-time user needs. The crank mechanism allows the resistance to be modified on-the-fly as the user progresses through the exercise range of motion, providing adaptive control rather than fixed resistance. This dynamic adjustment capability improves exercise control while maintaining a relatively simple mechanical system.
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 machine provides a safer and more efficient workout by allowing manual control of resistance, preventing heavy weights from being dropped on the user, enabling varied exercises, and requiring no external power source, with adjustable features for customizable training protocols.
Implementation Method 1
A second person manually controls the resistance and velocity of the rope by controlling a crank or wench on the vertical tower
Implementation Method 2
both the generally horizontal platform and the vertical tower have an interior which contain a rope, gears and/or a pulley
Implementation Method 3
both the generally horizontal platform and the vertical tower have an interior which contain a rope, gears and/or a pulley
Implementation Method 4
The downward force on the bar, handles, straps, hooks or the like is predominately controlled by the second person and not by gravity
Data Source
AI summary
A manually controlled and driven resistance exercise machine is provided. The exercise machine enables a user to stimulate his/her muscles by various concentric, isometric and/or eccentric exercises. The machine has a generally horizontal platform and a vertical tower wherein both the generally horizontal platform and the vertical tower have an interior which contain a rope, gears and/or a pulley. A second person manually controls the resistance and velocity of the rope by controlling a crank or wench on the vertical tower. The person exercising consistently pushes up on the bar, handles, straps, hooks or the like while the second person alters the downward force of the bar, handles, straps, hooks or the like by controlling the crank or wench.