Variable Spring Engagement Mechanism for Load-Responsive Rate Switching
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Solution Overview
Problem
Existing mechanical systems struggle to efficiently transition between different spring constants in response to varying loads, limiting the versatility and effectiveness of multi-spring applications.
Innovation Solution
A multi-spring mechanical actuator design featuring a movable support and load actuator with clamps that engage and disengage, allowing translation and rotation within a track system, enabling switching between a single spring constant and a spring differential based on load conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple springs with different spring constants are used, then the actuator can respond to varying loads more effectively, but the mechanism complexity increases due to the need for engagement and disengagement mechanisms
Solution Approach 1:
The patent implements a dynamic engagement mechanism where the movable support can transition between engaged and disengaged states with the load actuator. This allows the system to dynamically switch between single-spring and dual-spring configurations based on load conditions, resolving the contradiction between adaptability and complexity by making the complexity conditional rather than permanent
Solution Approach 2:
The system segments the spring functionality into distinct components (first spring and second spring) that can be independently engaged or disengaged. The movable support acts as a segment that can couple or decouple from the load actuator, allowing selective activation of spring constants without requiring a completely redesigned system for each load condition
2Adaptability or versatility
If a movable support with clamps is used to engage and disengage springs, then the transition between spring constants becomes possible, but the device complexity increases
Solution Approach 1:
The patent merges the engagement and disengagement functions into a single integrated movable support structure that combines clamp mechanisms with translation and rotation capabilities. This consolidation reduces the number of separate components needed, allowing the system to transition between spring constants while minimizing the increase in overall device complexity
Solution Approach 2:
The movable support serves multiple functions: it acts as a connection point for the first spring, provides clamp mechanisms for engaging the load actuator, enables translation along the longitudinal axis, and allows rotation about the longitudinal axis. This multi-functionality reduces the need for separate dedicated components, thereby limiting the increase in device complexity while achieving versatile spring constant transitions
Data Source
Figure 1-A~1-C
Figure 2-A~2-C
Figure 3
AI summary
A multi-spring mechanical actuator (10) includes a first spring (16) having a first spring constant (K1) and a second spring (28) having a second spring constant (K2) different than the first spring constant (K1), wherein a load actuator (30) is configured against the first spring (16) under one loading condition and against a spring differential between the first spring (16) and the second spring (28) under a different loading condition.