Composite Folding Table Top for Load Strength and Heat Resistance
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Solution Overview
Problem
Conventional tables with plastic table tops often deform or break under heavy loads, and their fasteners can detach or damage the top, leading to instability and potential collapse.
Innovation Solution
A table design featuring a foldable structure with a top composed of two distinct materials: blow-molded plastic for durability and a metal grid for heat resistance, connected by hinges, allowing for versatile use and enhanced strength, along with a frame that supports the edges and absorbs impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If conventional plastic table tops are used, then the table is lightweight and easy to manufacture, but the table top and frame may bend or deform under heavy loads
Solution Approach 1:
The table top is constructed from composite materials combining plastic and metal components. The plastic portion provides lightweight properties while the metal grid portion and integrated metal frame provide structural strength and load-bearing capacity, resolving the contradiction between light weight and high strength.
2Device complexity
If conventional fasteners are used to connect the frame to the table top, then the assembly is simple, but the fasteners may detach or damage the table top under excessive load
Solution Approach 1:
The frame is integrally formed with the table top structure, merging the previously separate components (frame and table top) into a unified structure. This eliminates the need for separate fasteners that could detach or damage the table top, while maintaining simple assembly through the integrated design.
3Stability of the object's composition
If the table has a fixed structure, then it provides stable support, but it cannot be easily moved or stored when not in use
Solution Approach 1:
The table incorporates foldable legs that can transition between extended and retracted positions, transforming the structure from static to dynamic. The legs pivot at joints allowing the table to be folded for compact storage or transport, while maintaining stable support when deployed for use.
4Ease of manufacture
If the table top is made from a single material, then the manufacturing process is simple, but the table cannot withstand both low temperatures and high heat from cooking
Solution Approach 1:
The table top is constructed from composite materials with the plastic portion providing resistance to low temperatures and the metal grid portion providing heat resistance for cooking applications. This multi-material construction enables the table to withstand both extreme cold and high heat, expanding its versatility while maintaining relatively simple manufacturing processes.
Data Source
AI summary
A fold-in-half table may include a first half constructed from molded plastic, such as blow-molded plastic, and a second half constructed from a wire rack. An inner engagement surface of the first half of the table top may engage an inner engagement surface of the second half of the table top when the table is in the unfolded position. The first and second inner engagement surfaces may be spaced apart when the table is in the folded position. The fond-in-half table may also include first and second support structures connected to the first and second halves of the table top and the support structures may be movable between an extended position and a collapsed position relative to the table top.