Refill Container Pouring Spout Guide for Secure Nozzle Coupling
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Solution Overview
Problem
Existing coupling structures between a pouring spout of a refill container and a pouring unit of a packaging container face issues with smooth fitting and separation during content transfer, leading to potential blockages.
Innovation Solution
A pouring spout with a tubular part featuring a guide that aligns with the nozzle of the packaging container, a closing member that separates without damage, and an air vent hole for smooth content transfer, ensuring secure fitting and prevention of separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the pouring spout is coupled to the pouring unit by fitting the tubular spout onto the inner side of the peripheral wall, then the structure is simple, but the coupling may not be smooth and the spout may separate during content transfer
Solution Approach 1:
The pouring spout is divided into two functional parts: a tubular spout for content transfer and a separate guide component. The guide protrudes from the inner wall of the tubular spout and fits into a corresponding groove in the pouring unit, creating a segmented coupling system that ensures both simplicity and stability.
Solution Approach 2:
The guide acts as an intermediary element between the tubular spout and the pouring unit. It protrudes from the inner wall of the tubular spout and engages with the groove in the pouring unit, facilitating smooth coupling and preventing separation during content transfer without adding complex structures.
2Strength
If a thread part is formed on the outer circumferential surface of the pouring spout, then the coupling strength is improved, but the smooth fitting is compromised
Solution Approach 1:
Instead of forming a thread part on the outer circumferential surface, the guide is formed on the inner wall of the tubular spout. This local modification provides coupling strength through the guide-groove engagement while maintaining the smooth outer surface for easy fitting.
3Productivity
If the closing member is removed by external force from the inner circumferential surface, then the content transfer is enabled, but the closing member may be damaged
Solution Approach 1:
The guide groove is pre-formed in the pouring unit to receive the guide from the tubular spout. This preliminary preparation ensures that when the closing member is removed by external force, the tubular spout is already properly positioned and guided, preventing damage to the closing member during the removal process.
Data Source
Figure 1
Figure 2A~2B
Figure 3A~3B
AI summary
To provide a pouring spout and a pouring unit that make it possible to smoothly couple a pouring spout of a refill container and a pouring unit constituting a packaging container, and keep the pouring spout that is fitted into the pouring unit from separating from the pouring unit while transferring contents from the refill container into the packaging container. The problem is solved by a pouring spout (10) that is used for a refill container (1) storing contents for refilling a packaging container (30) provided with a pouring unit (40) including a nozzle (43), and comprises a spout main body (10A) including a tubular pouring part (11) with a channel (10b) for allowing the contents to pass therethrough formed on an inner side, and an attached part (15) attachable to the container on one end (A) side in an extending direction of the tubular pouring part (11). The tubular pouring part (11) comprises a guide (50) that protrudes from an inner wall of the channel (10b) toward a center, extends in a direction corresponding to an extending direction of the tubular pouring part (11), and guides the tubular pouring part (11) in an extending direction of the nozzle (43).