Rapidly Collapsible Stand With Spring-Assisted Pedal Mechanism
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Solution Overview
Problem
Conventional collapsible stands for machine tools lack a simple and efficient mechanism for quick folding and extension, which complicates their use and storage.
Innovation Solution
A collapsible stand design featuring a base frame with pivot members, supporting frames, and an operating unit that includes a pedal shaft, push lever, coupling member, and spring member, allowing for easy extension and folding by utilizing a combination of pivoting and retractable mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional collapsible stands use multiple linkage mechanisms and securing units, then the stand can be extended and folded, but the structure becomes complex and operation becomes time-consuming
Solution Approach 1:
The stand is divided into modular components: base frame, supporting frames with legs, and an operating unit. Each component can independently fold or extend, allowing simplified control of individual sections rather than manipulating the entire structure at once.
Solution Approach 2:
The operating unit incorporates a pedal shaft with spring member that dynamically assists the folding and extension process. The spring provides automatic rebound force to return components to their original positions, reducing manual effort and operation time while maintaining structural integrity.
2Stability of the object's composition
If the stand uses a simple folding mechanism, then operation is easy, but the stand cannot maintain stability when extended
Solution Approach 1:
The securing unit with retaining shaft and elastic member is pre-configured to automatically engage with the pivot members when the stand is extended. This preliminary positioning ensures stability is maintained without requiring additional locking actions during operation.
Solution Approach 2:
The spring member in the operating unit automatically returns the pedal shaft to its initial position after folding, and the elastic member in the securing unit automatically engages to lock the extended position. These self-service features maintain stability without requiring complex manual intervention or additional stabilizing mechanisms.
3Productivity
If the stand is designed for quick folding, then portability is improved, but the structure becomes more complex requiring additional components
Solution Approach 1:
The operating unit merges multiple functions into a single integrated assembly: the pedal shaft provides mechanical advantage for folding, the spring member provides automatic rebound, and the coupling connects to the supporting frames. This consolidation achieves quick folding without requiring separate components for each function.
Solution Approach 2:
The pivot members serve dual purposes: they enable the supporting frames to fold relative to the base frame, and they also engage with the securing unit for stable extension. This multi-functionality reduces the need for additional specialized components while maintaining both folding speed and stability.
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 the stand to be easily and quickly folded or extended, improving portability and storage convenience while maintaining stability during use.
Implementation Method 1
The spring member has two ends respectively abutting against the pedaling portion of the pedal shaft and the first end of the push lever. The resilient force of the spring member constantly biases the pedaling portion and the first end to orient toward each other.
Implementation Method 2
The resilient force of the spring member constantly biases the pedaling portion and the first end to orient toward each other.
Data Source
AI summary
A rapidly collapsible stand includes a base frame, a pair of pivot members pivotally connected to a first side of the base frame, a first supporting frame connected to the pivot members, a first supporting unit pivotally connected between the base frame and the first supporting frame, a second supporting frame pivotally connected to the first supporting frame and a second supporting unit pivotally connected between the base frame and the second supporting frame. When operating the base frame, the second supporting frame is able to be extended away from the first supporting frame to an extended position by utilizing the linkage of the first supporting unit and the second supporting unit; or the second supporting frame is able to be received toward the first supporting frame to a received position by lifting up a handle portion of the first supporting frame.