Re-closable Pouring Element Guide Ribs Prevent Anchor Ring Tilting
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Solution Overview
Problem
Existing pouring elements for composite packaging can jam during assembly due to the anchor ring tilting, leading to functional failure and scrap disposal.
Innovation Solution
The base body features vertical guide ribs around the external thread to uniformly expand and center the anchor ring during assembly, preventing tilting and ensuring proper alignment with the screw cap, while allowing free rotation and secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the anchor ring is designed to expand during assembly, then the screw cap can be securely attached, but the anchor ring may tilt and jam during assembly
Solution Approach 1:
The patent introduces guide ribs as an intermediary element between the anchor ring and the screw cap. These guide ribs constrain the expansion movement of the anchor ring, ensuring it expands uniformly along the threading path without tilting. This mediator structure prevents the jamming issue while preserving the secure attachment function.
Solution Approach 2:
The patent modifies the geometric parameters of the anchor ring and guide rib structure to control the expansion process. By designing the guide ribs with specific angles and dimensions, the expansion force is distributed evenly, changing the expansion parameter from uncontrolled to controlled, thereby preventing tilting during assembly.
2Manufacturing precision
If the anchor ring expands uniformly, then proper alignment with the screw cap is achieved, but assembly complexity increases
Solution Approach 1:
The patent divides the guide structure into multiple discrete guide ribs segmented around the circumference of the anchor ring. This segmentation allows each rib to independently guide the expansion process, achieving uniform alignment without requiring a complex continuous guide structure. The segmented approach simplifies the overall assembly structure while maintaining precision.
Data Source
Figure 1~2
Figure 3~4
Figure 5A~5B
AI summary
The invention relates to a re-closable pouring element for a composite packaging (P) comprising - a main body (3) with a flange (4) and a hollow-cylindrical spout (5) with at least one external thread (6), - an opening means guided movably in the spout (5) for opening the composite packaging (P), and - a re-closable screw cap (2), having an anchoring ring (13), wherein the screw cap (2), when the composite packaging (P) is first opened, serves to drive the opening means, and wherein the screw cap (2) and the anchoring ring (13) are connected by a plurality of breakable material bridges or at least by a metal anchoring for attachment to the main body (3), wherein the main body (3) has at least one peripheral protrusion (10A) on the spout (5) for securely holding the anchoring ring (13), and wherein the anchoring ring (13) has a peripheral holding protrusion (17) on its inner side, the holding protrusion being shaped so that it corresponds to the peripheral protrusion (10A). The invention also relates to a method for mounting the screw cap (2) for such a pouring element (1). In order to reliably rule out a canting of the anchoring ring (13) during the process of mounting the pouring element (1), the main body (3) has, on the spout (5), between the external thread (6) and the peripheral protrusion (10A), a plurality of vertical guide ribs (9) arranged distributed over the periphery for uniformly expanding the anchoring ring (13) when the screw cap (2) is applied during the mounting of the pouring element (1).