Folding Table Cam-Based Lock Mechanism for Quick Position Changes
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Solution Overview
Problem
Conventional folding tables are inconvenient and time-consuming to operate due to the complex threaded engagement and disengagement process required to position the table top between folded and unfolded states.
Innovation Solution
A folding table design featuring a support stand with a pivot portion and engaging portions, along with a resilient unit that allows for easy conversion between unfolded and folded positions by engaging and disengaging the table top, utilizing a fold mechanism with a movable operating member and a resilient unit to facilitate quick position changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If threaded engagement and disengagement mechanism is used to position the table top, then the table top can be securely fixed in folded or unfolded positions, but the operation becomes time-consuming and inconvenient
Solution Approach 1:
The patent replaces the threaded engagement mechanism with a cam-based mechanical system. The cam member rotates to engage or disengage the locking member, converting a complex threaded operation into a simple rotational motion that secures the table top quickly and reliably
Solution Approach 2:
The patent introduces a cam member as an intermediary between the operating member and the locking member. This cam member translates the rotational motion of the operating member into the linear motion needed to engage or disengage the locking member, simplifying the user's interaction while maintaining secure fixation
2Adaptability or versatility
If threaded engagement mechanism is used to position the table top, then the table top can be fixed in different positions, but the operation process becomes complex and time-consuming
Solution Approach 1:
The patent replaces the time-consuming threaded engagement mechanism with a cam-based system where rotational motion of the cam member quickly engages or disengages the locking member, significantly reducing the time required to adjust the table top position while maintaining adaptability
Solution Approach 2:
The patent employs a dynamic cam mechanism that can quickly transition between engaged and disengaged states through rotational motion, allowing rapid position changes of the table top without the time-consuming threaded operations of conventional mechanisms
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 quick and easy conversion between unfolded and folded positions without removing any part of the fold mechanism, providing stable support and allowing for adjustable length and efficient storage by stacking multiple tables.
Implementation Method 1
a resilient unit disposed in the receiving space and connected to the abutment portion of the operating member
Data Source
AI summary
A folding table includes a support stand, a fold mechanism, and a table top. The support stand includes a top seat having a first engaging portion. The fold mechanism includes a fold seat pivoted to the top seat, a resilient unit, and an operating member having a second engaging portion. When the table top is at an unfolded position, the operating member is operable from a lock state, where the second engaging portion of the operating member is biased by the resilient unit to engage the first engaging portion of the top seat, to an unlock state, where the second engaging portion is disengaged from the first engaging portion against a resilient force of the resilient unit, thereby permitting pivot movement of the table top to the folded position.