Bayonet Closure Cap with Anchor Ring and Guide Ribs
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Solution Overview
Problem
Existing closure devices with internal and external threads require more material for production, increasing environmental littering concerns, and do not efficiently separate the closure cap from the container during opening.
Innovation Solution
A closure device utilizing a bayonet-like locking mechanism with guide ribs and recesses, allowing for both continuous and discontinuous movement paths, which reduces material usage and maintains the cap connected to the container during opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If internal and external threads are used for the closure device, then reliable sealing and locking are achieved, but material consumption increases and environmental littering is exacerbated
Solution Approach 1:
The closure device is divided into separate functional components: a closure cap with guide ribs for rotational engagement and an anchor ring with corresponding guide recesses for axial positioning. This segmentation allows each component to be optimized independently, reducing overall material usage while maintaining reliable sealing and locking functions through the bayonet mechanism.
Solution Approach 2:
The invention transitions from traditional two-dimensional threaded engagement to a three-dimensional bayonet mechanism combining rotational and axial movements. The guide ribs on the closure cap engage with guide recesses on the anchor ring, creating a multi-dimensional locking action that achieves reliable sealing with reduced material consumption compared to conventional threading.
2Reliability
If traditional threaded closures are used, then secure attachment is achieved, but the closure cap cannot be easily separated from the container during opening
Solution Approach 1:
The bayonet mechanism incorporates dynamic elements that allow the closure cap to transition smoothly from a secured attached state to a separated state. The guide ribs and guide recesses are designed to engage during normal use and disengage during opening, providing both secure attachment and ease of separation through controlled mechanical movement.
Solution Approach 2:
The guide ribs and guide recesses act as intermediary elements between the closure cap and anchor ring. These intermediary features facilitate both the secure attachment during use and the controlled separation during opening, mediating the transition between the two states without requiring excessive force or complex mechanisms.
3Loss of substance
If bayonet-like locking mechanism with guide ribs and recesses is used, then material consumption is reduced, but complex guiding elements are required
Solution Approach 1:
Instead of making the entire closure device complex, the guide ribs and guide recesses are localized to specific areas where they are needed for engagement. The closure cap has guide ribs only in the regions requiring rotational guidance, and the anchor ring has guide recesses only where axial positioning is needed, reducing overall complexity while maintaining functionality.
Solution Approach 2:
The guide ribs and guide recesses are designed with asymmetric geometries that provide clear directional guidance for engagement and disengagement. This asymmetry simplifies the overall design by providing inherent guidance without requiring additional complex mechanisms, as the asymmetric shapes naturally dictate the movement path and engagement sequence.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The present invention relates to a closure device (1) comprising a base element (2), wherein the base element (2) has a pouring channel (3) extending along a closure axis (50) with an inlet opening (4) and a pouring opening (5), wherein the closure device (1) comprises a closure cap (6), wherein the closure cap (6) has a cap lid (7) and a cap mantle (8) extending circumferentially to the cap lid (7) and axially extending, wherein the closure cap (6) and the base element (2) are designed such that the closure cap (6) closes the pouring opening (5) in a closed state of the closure device (1) and releases it in an open state of the closure device (1).In order to protect the environment from littering with plastic parts and at the same time enable low material consumption, it is proposed according to the invention to design the closure device as a closure device for bayonet-like closing of a container, wherein the connecting element (10) connects the anchor ring (9) with the closure cap 20 (6), wherein the anchor ring (9) is engaged with the base element (2) in both the closed state and the open state of the closure device (1) in such a way that the closure cap (6) is also connected to the base element (2) in the open state by the connecting element (10) and the anchor ring (9).