Oval Dispenser Skeletal Platform Bottom-Fill Adherence
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Solution Overview
Problem
Existing stick dispensers face challenges with material retention, adherence, and resource efficiency, particularly in bottom-fill designs, which lead to issues like spillage, uneven filling, and increased weight due to dead space and material thickness.
Innovation Solution
A dispenser with an oval skeletal platform featuring a filling ring and radial spokes, allowing for efficient bottom filling while minimizing material retention and weight, and incorporating a cam/stop system for secure stick material adherence and reduced plastic usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a solid platform is used in bottom-fill dispensers, then the structure is simple, but material retention is poor and spillage occurs during filling
Solution Approach 1:
The platform is designed as a skeletal structure with multiple apertures and radial spokes instead of a solid surface, segmenting the platform into a framework that allows controlled material flow while maintaining structural integrity during bottom filling
Solution Approach 2:
The platform features localized thickened regions at specific positions (such as at the apertures and along the radial spokes) that provide enhanced material retention at critical points while maintaining overall skeletal lightness, creating different local properties for different functional requirements
2Reliability
If the platform is made deeper to improve stick material adherence, then adherence improves, but the barrel length must be increased
Solution Approach 1:
Instead of increasing platform depth in the vertical dimension, the invention creates adherence surface area in the radial dimension through multiple spokes and apertures, distributing the adherence function across a broader radial area while maintaining a shallow overall profile that fits within the existing barrel length
3Loss of substance
If a skeletal platform with thin elements is used to reduce material usage, then resource efficiency improves, but flexing occurs and creates fault lines
Solution Approach 1:
The platform employs thin-walled skeletal elements that are designed to be sufficiently flexible to absorb operational stresses without fracturing, while the interconnected spoke structure provides distributed support that prevents excessive flexing and fault line formation
Solution Approach 2:
The platform structure is pre-designed with thickened regions at critical stress points (apertures, spoke connections) before use, providing built-in reinforcement that prevents flexing-induced fault lines during normal operation while maintaining overall material efficiency
4Manufacturing precision
If bottom filling is used to avoid spillage, then filling control improves, but dead space increases and weight increases
Solution Approach 1:
The skeletal platform with its apertures and radial spokes segments the filling space, allowing material to flow directly to the stick formation area through multiple pathways, reducing dead space volume while maintaining precise filling control through the structured aperture system
Data Source
AI summary
An oval dispenser for stick material suitable for being filled through its base comprises a skeletal platform having a threaded hub, a rim wall, a circular wall intermediate between the hub and the rim defining a filling zone and linked to the hub by at least two spokes and to the rim by at least two spokes, which latter spokes intersect at least one wall and preferably two walls spanning the rim and intermediate between the filling zone and the rim.