Lid with rotatable closure tab
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Solution Overview
Problem
Existing lid systems for containers require two hands to open or close the sipping port and use excessive material, with finger coverage being messy and unsanitary.
Innovation Solution
A lid with a rotatable closure tab that can be operated with one hand, is removably attached, and retains its position when closing or not closing the sipping port, using a central recess and flanged-shaped structure for sealing and retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a two-lid system is used to seal the sipping port, then the port can be effectively sealed, but the amount of material used doubles and two hands are required for operation
Solution Approach 1:
The lid system is segmented into two functional components: a primary lid with a sipping spout and a secondary rotatable closure tab. This segmentation allows the closure function to be separated from the main lid structure, enabling a smaller, more material-efficient closure component that can be operated independently with one hand.
Solution Approach 2:
The closure tab is designed to rotate within a central recess, adding a rotational dimension to the sealing mechanism. This rotational movement allows the closure tab to effectively seal the sipping port without requiring a second full lid, reducing material usage while maintaining sealing reliability.
2Reliability
If a two-lid system is used to seal the sipping port, then the port can be effectively sealed, but the device complexity increases due to multiple components
Solution Approach 1:
The closure tab is integrated with the primary lid through a snap-fit connection to the brim sealing channel, merging the sealing functions into a single unified structure. This integration eliminates the need for separate lids while maintaining the dual-function capability of sipping and sealing.
Solution Approach 2:
The rotatable closure tab serves multiple functions: it seals the sipping port when rotated to the closed position, allows one-handed operation, and can be independently removed or attached. This multi-functionality reduces the need for additional specialized components.
3Ease of operation
If the closure tab is made removable and rotatable, then one-handed operation is enabled, but the retention and positioning mechanisms become more complex
Solution Approach 1:
The closure tab incorporates a self-retaining mechanism where the tab's own structure (flanged-shaped structure and retention rim) interacts with the central recess to provide automatic retention and positioning. This self-service mechanism eliminates the need for external retention components, enabling one-handed operation without excessive complexity.
Data Source
AI summary
A lid includes: a brim sealing channel at a periphery of the lid; an outer sipping sidewall positioned within a circumference of the brim sealing channel and extending above the brim sealing channel; a sipping topwall adjacent to the outer sipping sidewall; a sipping port in the sipping topwall; and a central recess within the circumference of the brim sealing channel and proximate to the sipping topwall, wherein the central recess has an overhang and a bottomwall; and a rotatable closure tab includes: a central portion; a flanged-shaped structure at a first side of the central portion; a tab sidewall supported by the flanged-shaped structure; a tab topwall extending outwardly from the tab sidewall and away from the flanged-shaped structure; a sealing depression in the tab topwall; and a retention rim extending radially from the central portion and positioned between the overhang and bottomwall of the central recess.