Spout Attachment Structure for Controlled Pouch Liquid Dispensing
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Solution Overview
Problem
Existing spout assemblies in stand-up pouches lead to undesired and uncontrolled liquid outflow during vertical inversion, resulting in spillage and turbulence, particularly during dispensing of liquids.
Innovation Solution
An attachment structure for a spout that includes a nozzle portion, flange structure, and a base portion with finger portions and a deflector, allowing controlled liquid flow by user interaction and minimizing turbulence through deflection and guidance of the liquid stream.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the pouch is vertically inverted for dispensing liquid, then the liquid can be dispensed from the pouch, but uncontrolled outflow and spillage occur
Solution Approach 1:
The attachment structure incorporates a dynamic valve mechanism that transitions between open and closed states based on user interaction. The finger portions and bag wall interaction create a controllable flow path that adapts from unrestricted flow during inversion to controlled flow during dispensing, resolving the contradiction between ease of operation and flow control reliability
2Productivity
If the pouch is vertically inverted for dispensing liquid, then the liquid can flow out of the pouch, but turbulence and spillage increase
Solution Approach 1:
The attachment structure serves as an intermediary component between the pouch interior and exterior, introducing a controlled flow path through the finger portions and valve mechanism. This intermediary structure guides the liquid flow smoothly, preventing turbulence and spillage while maintaining dispensing efficiency, thus resolving the contradiction between productivity and harmful factors
Data Source
AI summary
An attachment structure for a spout including a nozzle portion defining an elongated channel and a flange structure coupled to the nozzle portion. The attachment structure includes a base portion configured to be engaged to the flange structure and defining a passage adapted to be arranged coaxially to the elongated channel. The attachment structure includes a first finger portion and a second finger portion arranged spaced apart from each other and extending in a substantially longitudinal direction from the base portion. The first finger portion defines a first opening and the second finger portion defines a second opening. The attachment structure includes an end wall connecting the pair of finger portions and arranged opposite to the passage. The first opening and the second opening allow an exchange of the liquid between a bag container and the spout in an open position.