E-commerce Closure with Barb Flap Locking Mechanism
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Solution Overview
Problem
Leakage of consumer goods during shipping, particularly individual bottles in e-commerce, is a significant issue due to the lack of effective closure mechanisms that prevent accidental opening under shipping and handling stresses.
Innovation Solution
A closure system featuring a cap base with a depending plug and barb flaps that require extra force to open, combined with a locking mechanism, ensures the cap remains closed during transport and only opens with deliberate action by the consumer, utilizing living hinges and a snap-lock design to enhance security against leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a simple hinged cap closure is used, then ease of operation is improved, but reliability deteriorates due to accidental opening during shipping
Solution Approach 1:
The closure is divided into functional segments: a hinged cap for opening/closing action, and a separate latching mechanism with barb flaps and recesses for security. This segmentation allows the cap to provide easy operation while the latching mechanism independently provides shipping security.
Solution Approach 2:
The latching mechanism is pre-configured with barb flaps positioned to engage with recesses in the cap base before shipping occurs. This preliminary engagement prevents accidental opening during transport without interfering with the consumer's ability to open the cap when needed.
2Reliability
If a secure latching mechanism is added to prevent leakage, then reliability is improved, but device complexity increases
Solution Approach 1:
The latching mechanism is merged with the existing hinged cap structure. The barb flaps are integrated into the cap body, and the recesses are formed in the cap base, combining the sealing and latching functions into a unified closure system rather than adding separate components.
Solution Approach 2:
The latching mechanism is designed to be self-actuating. When the cap is closed, the barb flaps automatically engage with the recesses through the hinge motion, and when the cap is opened, they automatically disengage. No additional actuators or complex mechanisms are required.
3Reliability
If the cap requires extra force to open during shipping, then resistance to accidental opening is improved, but ease of operation deteriorates
Solution Approach 1:
The latching mechanism provides dynamic resistance: it offers high force resistance during normal shipping conditions when the cap is accidentally subjected to external forces, but allows easy opening when the consumer applies deliberate force in the correct direction to disengage the barb flaps from the recesses.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The closure effectively prevents liquid egress during shipping and handling, ensuring product integrity by requiring additional force to open, thus minimizing accidental openings and leakage risks, while allowing easy opening by the consumer with minimal effort.
Implementation Method 1
the barbs are pushed up against the wall of the plug and are received within a recess in the cylindrical opening wall. The bar flaps abut an upper wall of the recess such that extra force is required to open the cap
Implementation Method 2
The cap is preferably attached to the cap base using a living hinge
Implementation Method 3
a locking flap on the cap which snaps into and is received within a recess on the cap base
Data Source
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AI summary
A closure (10), especially useful for e-commerce. The closure comprises a lid (16) and a cap base (12) which can be releasably fastened to a container, the cap base including an opening (24). The lid has a depending plug (26) extending therefrom which is received within the opening in the cap base when the lid is in the closed position. The opening is formed within a cylindrical opening wall (88). When the lid is in its open position, extending outwardly from the depending plug at its end distal from the lid are one or more barb flaps (82). As the lid is moved to its closed position with the depending plug within the cylindrical opening wall, the barbs are pushed up against the walls of the plug and are received within a recess in the cylindric opening wall. Within the recess, the bar flaps abut an upper wall of the recess (40) such that extra force is required to open the lid, e.g., during shipping. When the consumer wishes to open the lid, he or she exerts the extra force needed to force the lid open, which causes the barb flaps to assume their original positions extending outwardly from the cylindrical plug.