Refill Container Pouring Spout with Debris-Free Removable Closure
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Solution Overview
Problem
Existing refill containers produce broken pieces when the sealing plate is locally broken by the pouring nozzle, leading to clogging of the pouring nozzle in the packaging container.
Innovation Solution
A separate closing member that fits onto the inner surface of the tubular pouring part, removable by an external force, is used instead of a sealing plate, preventing damage and ensuring smooth transfer of contents without producing broken pieces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a sealing plate with a weak line is used to allow separation when the pouring nozzle is inserted, then the contents can be transferred from the refill container to the packaging container, but the sealing plate may not separate smoothly and produces broken pieces that can clog the pouring nozzle
Solution Approach 1:
The sealing plate is divided into two separate parts: a removable closing member and a spout main body. The closing member is fitted onto the inner circumferential surface of the tubular pouring part and can be removed by external force (the pouring nozzle) without damaging either component. This segmentation eliminates the weak line design that causes breaking while maintaining the sealing and transfer functions.
2Reliability
If the closing member is made as a separate body fitted onto the inner surface, then the closing member can be removed without damage, but the structure becomes more complex compared to a single sealing plate
Solution Approach 1:
The closing member is nested within the tubular pouring part by fitting onto its inner circumferential surface. This nested configuration allows the closing member to be easily removed by the pouring nozzle without complex mechanisms, while maintaining a compact and simple overall structure that does not significantly increase device complexity.
Data Source
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AI summary
To provide a pouring spout of a container capable of communicating a channel formed in a tubular pouring part of a pouring spout without producing broken pieces or the like. The problem is solved by a pouring spout (10) of a container (1) provided with a tubular pouring part (11) and an attached part (15) attachable to the container (1) on one end (A) side of the tubular pouring part (11) in an axial direction, the pouring spout (10) comprising a closing member (20) for closing the one end (A) side of the tubular pouring part (11). The closing member (20) is configured as a separate body from a spout main body (10A) of the pouring spout (10), and is fitted onto an inner circumferential surface of the tubular pouring part (11) on the one end (A) side thereof in such a manner that the closing member (20) is removed by an external force applied from the other end (B) side opposite to the one end (A) side in an axial direction (L) from the inner circumferential surface of the tubular pouring part (11).