Foam Head Attachment via Tiltable Rib and Recess
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Solution Overview
Problem
Existing foam heads connected to propellant containers require significant material for secure attachment, leading to high material consumption and costs.
Innovation Solution
A foam head design with inner and outer crimped edges, featuring a tiltable lower portion with an outer rib and recess, securely attaches to the propellant container using a resilient valve stem, allowing for actuation without falling off, and optionally includes a sleeve for easier handling and decoration, reducing material usage by approximately 50% compared to traditional methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional secure attachment methods are used to connect foam head to propellant container, then attachment reliability is improved, but material consumption increases
Solution Approach 1:
The connection system is segmented into multiple functional elements: the foam head with integrated connection element, the propellant container with crimped edge, and the optional sleeve. This segmentation allows each component to perform its specific function efficiently, reducing the need for excessive material in any single component while maintaining overall attachment reliability.
Solution Approach 2:
The foam head's lower portion is designed to be tiltable relative to the connection element, allowing dynamic adjustment during actuation. This dynamic capability enables secure attachment during normal use while allowing controlled movement during dispensing, reducing the need for overly rigid and material-intensive connection structures.
2Loss of substance
If simple connection provisions are used to reduce material consumption, then material savings are achieved, but attachment security deteriorates
Solution Approach 1:
The connection element is nested within the foam head structure, with the connection element's outer diameter matching the inner diameter of the crimped edge. The foam head's lower portion fits within the connection element, creating a nested configuration that maximizes attachment security while minimizing material usage through efficient spatial utilization.
Solution Approach 2:
The invention employs a composite structure combining the foam head material, the connection element material, and optionally the sleeve material. This composite approach allows each material to be optimized for its specific function, achieving secure attachment with reduced overall material consumption compared to using a single material throughout.
3Ease of operation
If foam head is designed with tiltable lower portion and engagement features, then ease of operation is improved, but device complexity increases
Solution Approach 1:
Multiple functions are merged into the foam head structure: the connection element, the tiltable lower portion, the engagement features (outer rib and recess), and the dispensing opening are all integrated into a single foam head component. This merging reduces the number of separate parts and assembly steps, simplifying the overall device despite the enhanced operational capabilities.
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 achieves substantial material and cost savings while ensuring secure attachment and easy actuation of the foam head, allowing for versatile application and reduced material consumption.
Implementation Method 1
The restoring force after the actuation of the actuation button 6 for applying a partial amount of foam is provided by the resilient valve stem.
Data Source
AI summary
Disclosed is a foam head (1) for a propellant container (2) with an inner and an outer crimped edge (3, 4) of a valve disk (5). Said foam head (1) comprises an actuating button (6) and a foam discharge port (7) and is embodied so as to sit directly on a valve stem (8). A bottom section (9) of the foam head (1) has an outer diameter (10) that is approximately identical to an inner diameter (11) of the inner crimped edge (3). An outer rib (13) which faces the actuating button (6) is disposed in a lower area (12) of the bottom section (9) so as to engage underneath a bottom side (14) of the inner crimped edge (3). A lower edge (15) of the bottom section (9) is provided with at least one recess (16) in order to form an annular spring (17).