Fluid Resistance Exercise Machine with Adjustable Paddle Depth
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Solution Overview
Problem
Existing rowing machines lack adjustable resistance, limiting user experience and effectiveness in simulating varying workout intensities.
Innovation Solution
An exercise machine with a fluid container, paddles, and an adjusting device that allows for the adjustment of paddle depth within the fluid container, using a mechanism involving a knob, linking mechanism, and adjusting rod to change resistance levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the paddle depth in fluid is fixed, then the structure is simple, but the resistance cannot be adjusted
Solution Approach 1:
The patent implements a dynamic adjusting mechanism where the paddle depth can be changed during operation. The adjusting rod connected to the knob allows users to dynamically modify the paddle's immersion depth in the fluid, thereby changing the resistance level according to workout requirements.
Solution Approach 2:
The patent changes the physical parameter of paddle immersion depth to control resistance. By adjusting how deep the paddle enters the fluid through the adjusting rod mechanism, the resistance experienced during rowing is directly modified, providing variable intensity workouts.
2Ease of operation
If the paddle depth is adjustable, then the workout intensity can be varied, but the device complexity increases
Solution Approach 1:
The patent introduces a linking mechanism as an intermediary between the user's manual input (knob rotation) and the paddle position adjustment. This mechanism translates rotational motion into linear displacement of the adjusting rod, making the resistance adjustment operationally simple while managing the mechanical complexity internally.
Solution Approach 2:
The patent replaces complex electronic resistance control systems with a purely mechanical adjustment mechanism. The knob, linking mechanism, and adjusting rod form a simple mechanical system that users can operate without electronics, maintaining ease of operation while achieving variable resistance.
3Reliability
If multiple components are added for adjustment, then resistance control is achieved, but the device becomes more complex
Solution Approach 1:
The patent segments the resistance control function into distinct components: the knob for user input, the linking mechanism for motion conversion, the adjusting rod for position control, and the paddle for fluid interaction. This segmentation allows each component to perform its specific function reliably while maintaining overall system manageability.
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
Enables users to easily adjust resistance levels, providing a more customizable and effective workout experience by varying the depth of paddles in the fluid, thus altering the exercise machine's resistance.
Implementation Method 1
Pulling on a drive cord during a pulling segment of a stroke rotates a paddle or like mechanism located within the container to rotate the water to produce a momentum effect. Turbulence in the water provides fluid resistance to the rotation of the paddle.
Implementation Method 2
Pulling on a drive cord during a pulling segment of a stroke rotates a paddle or like mechanism located within the container to rotate the water to produce a momentum effect.
Implementation Method 3
The adjusting device comprises a knob and a linking mechanism coupled with the knob and the adjusting rod, and the knob can be rotated so as to adjust the depth of the paddles via the linking mechanism.
Data Source
AI summary
This invention discloses an exercise machine with adjustable resistance. The exercise machine includes a fluid container, one or more paddles, a driving device, and an adjusting device. The one or more paddles are arranged in the fluid container into which a fluid is poured. The driving device comprises an adjusting rod to couple with the one or more paddles. The driving device transmits a user's force for driving the one or more paddles to rotate. The adjusting device can adjust a depth of the one or more paddles in the fluid, so as to provide differing degrees of resistance for the one or more paddles.