Linkage Structure Synchronizes Reluctance and Brake Units
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Solution Overview
Problem
Traditional reluctance-type exercise machines require separate control for resistance and braking mechanisms, making it inconvenient for the next user to adjust the resistance position after braking, as the reluctance control mechanism remains at a specific position when the resistance wheel is stopped.
Innovation Solution
A linkage structure that synchronizes the operation of the reluctance unit and brake unit using a rotary arm and elastic member, allowing the reluctance unit to move away from the resistance wheel when the brake unit engages, enabling simultaneous operation and convenient adjustment for subsequent users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the brake mechanism is operated to stop the resistance wheel, then the braking function is achieved, but the reluctance control mechanism remains at a specific position which is inconvenient for the next user to adjust
Solution Approach 1:
The patent combines the brake mechanism and reluctance control mechanism into a single integrated system where both functions are controlled by one handle. The handle simultaneously controls the brake shoe engagement and the reluctance unit position, ensuring that when braking occurs, the reluctance unit automatically moves to a release position, eliminating the need for separate adjustment operations.
Solution Approach 2:
The patent introduces a linkage mechanism as an intermediary between the user's handle operation and the two controlled components (brake shoe and reluctance unit). This linkage mechanism translates single-handle motion into coordinated movement of both the brake and reluctance control elements, ensuring synchronized operation and automatic positioning.
2Adaptability or versatility
If separate control mechanisms are used for resistance and braking, then each function can be controlled independently, but the device complexity increases and synchronous operation is not achieved
Solution Approach 1:
The patent merges the separate control mechanisms for resistance and braking into a single integrated control system. One handle operates both the brake shoe and reluctance unit through a unified linkage mechanism, reducing the number of independent controls while maintaining full functionality of both braking and resistance adjustment.
Solution Approach 2:
The single handle serves multiple functions: it controls both the brake shoe engagement and the reluctance unit position simultaneously. This multi-functional control element eliminates the need for separate controls, simplifying the overall device while maintaining adaptability for both braking and resistance adjustment operations.
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 synchronous operation of the reluctance and brake units, allowing the reluctance unit to be easily moved away from the resistance wheel when braked, facilitating adjustments for subsequent users and improving user convenience.
Implementation Method 1
the linkage structure further comprises an elastic member. One end of the elastic member is fixed, and another end of the elastic member is connected to the second arm
Data Source
AI summary
A linkage structure of a reluctance unit and a brake unit and an exercise machine having the linkage structure are provided. The exercise machine includes a main body, having a resistance wheel and a control unit; a linkage member, connected with the control unit; a reluctance unit, corresponding to the resistance wheel and connected with the linkage member; and a brake unit, corresponding to the resistance wheel and connected with the linkage member. The control unit controls the motion of the linkage member so that the linkage member drives the reluctance unit to move between a reluctance position and a release position, and the linkage member drives the brake unit to move between a brake release position and a brake position.