Lid assembly for container
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Solution Overview
Problem
Conventional containers for dispensing sheets of material, such as wipes, face issues with lid deformation leading to loose closure mechanisms and ineffective material dispensing, with orifice size problems causing tearing, roping, or clumping of sheets.
Innovation Solution
A lid assembly with a frame and inner panel that includes a biasing member and a cover panel, featuring a unique orifice configuration to prevent deformation and control dispensing, ensuring individual sheet dispensing without tearing or clumping, and a tortuous path for sealing the container.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the lid assembly is made from a relatively flexible material to allow repeated opening and closing, then the ease of operation is improved, but the lid assembly deforms over time causing the closure mechanism to become loose and the orifice to fail in controlling dispensing
Solution Approach 1:
The lid assembly is divided into multiple components: a rigid frame, a flexible inner panel, and a cover panel. This segmentation allows the rigid frame to maintain structural integrity and closure effectiveness, while the flexible inner panel provides ease of operation for repeated opening and closing.
Solution Approach 2:
The lid assembly combines rigid and flexible materials in a composite structure. The rigid frame provides structural stability and maintains the closure mechanism's effectiveness, while the flexible inner panel allows for easy, repeated opening and closing operations without deforming the overall structure.
2Ease of operation
If the orifice size is increased to allow easier dispensing of sheets, then the ease of operation is improved, but the sheets tear when pulled out through the orifice
Solution Approach 1:
The inner panel features a localized reinforced region around the orifice with increased material thickness. This local quality enhancement provides structural support at the critical dispensing point, allowing sheets to be easily pulled through the orifice without tearing while maintaining sheet integrity.
3Strength
If the orifice size is decreased to prevent sheet tearing, then the sheet integrity is improved, but the sheets clump or rope when pulled out through the orifice
Solution Approach 1:
The reinforced region around the orifice with increased material thickness provides structural support that maintains the orifice shape during sheet dispensing. This prevents sheets from clumping or roping while being pulled through, ensuring both sheet integrity and smooth dispensing operation.
4Reliability
If the lid assembly is made entirely from rigid material to maintain structural integrity, then the reliability is improved, but the ease of operation for repeated opening and closing deteriorates
Solution Approach 1:
The lid assembly is segmented into a rigid frame for structural integrity and a flexible inner panel for ease of operation. This allows the rigid portions to maintain reliability while the flexible portion enables repeated opening and closing.
Solution Approach 2:
The combination of rigid and flexible materials in the lid assembly allows the rigid frame to provide structural integrity and reliability, while the flexible inner panel provides the compliance needed for easy, repeated opening and closing operations.
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 lid assembly maintains a secure closure and effectively dispenses sheets without deformation, preventing tearing, roping, or clumping, while ensuring the sheets remain sanitary and moist.
Implementation Method 1
the panel latching member includes a biasing member having a panel projection
Data Source
AI summary
Lid assembly for a container includes a frame having a frame latching member extending therefrom, the frame latching member including a frame projection, an inner panel hingedly coupled to the frame along a first longitudinal side thereof and movable between a closed position and an open position, the inner panel including a panel latching member extending therefrom, the inner panel defining an orifice extending between the bottom surface and the top surface, the panel latching member including a biasing member having a panel projection, the frame projection and the panel projection being lockable when the inner panel is in the closed position and the frame projection is disposed between a base of the biasing member and the panel projection when the inner panel is in the closed position, and a cover panel hingedly coupled to the frame along a second longitudinal side thereof opposite the first longitudinal side.