Folding table
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Solution Overview
Problem
Folding tables are often unstable when assembled and difficult to transport in a compact and secure manner, as their components do not pack together effectively, leading to potential damage during transport.
Innovation Solution
A folding table design featuring pivotably coupled legs with spring tabs that engage an alignment shaft via a friction fit, allowing for secure assembly and easy stowage, with a method of manufacturing that includes cutting and bending leg segments from sheet metal to form a planar portion and side portions, and adding a spring tab with a rounded tail for secure friction fit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If folding tables are designed to be easily set up and stored, then flexibility and portability are improved, but stability and security during use deteriorate
Solution Approach 1:
The spring tab is designed as a dynamic element that automatically adjusts during assembly. When the leg is inserted, the spring tab compresses and then expands to engage with the alignment shaft, providing automatic locking without requiring manual adjustment. This dynamic mechanism resolves the contradiction by enabling easy setup (dynamic engagement) while ensuring stable locked position (static engagement).
Solution Approach 2:
The spring tab mechanism is self-actuating through the insertion motion itself. As the leg segment is inserted into the slat, the spring tab naturally compresses and then springs back to engage the alignment shaft, automatically securing the leg without requiring separate fastening actions. This self-service mechanism improves ease of assembly while maintaining reliability through automatic engagement.
2Volume of moving object
If folding table components are designed for compact stowage, then portability is improved, but secure packing and prevention of component damage deteriorate
Solution Approach 1:
The leg segments are designed to nest within the cavity formed by folded leg segments. The first leg segment is received within the cavity of the second leg segment, creating a nested configuration that minimizes stowage volume while preventing components from shifting or damaging each other during transport. The spring tab mechanism secures this nested arrangement in place.
Solution Approach 2:
The spring tab is pre-configured with a rounded tail shaped to contour around the alignment shaft. This preliminary shaping ensures that when the leg segments are folded for stowage, the spring tab automatically applies pressure to the stowed slat, securing components together before transport begins. This preliminary securing action prevents component damage during handling and transport.
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
The design provides a sturdy and stable table when assembled and allows for secure stowage of components in a compact form, suitable for applications like camping, where stability and compactness are essential.
Implementation Method 1
The spring tab may be configured to apply pressure on the stowed slat
Implementation Method 2
The spring tab may include a rounded tail shaped to contour around the alignment shaft, keeping the leg firmly in an open position via a friction fit
Data Source
AI summary
A device may include a slat defining a planar surface. A device may include a first leg including: a leg segment with a predominantly planar portion. A device may include a spring tab on a first longitudinal end of the leg segment, the first leg being pivotably coupled at the first longitudinal end of the leg segment to the slat. A device may include a second leg pivotably coupled to the slat. A device may include an alignment shaft configured to be coupled to the slat, the spring tab being configured to be coupled to the alignment shaft via a friction fit as the first leg is rotated to an open position.