Pivoting Cup Lid Sealing and Venting for Spill-Free Drinking
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Solution Overview
Problem
Existing beverage container lids often suffer from ineffective sealing, difficulty of use, and inadequate venting, making them undesirable for preventing spills and easy consumption.
Innovation Solution
A reusable lid design featuring a main body, spout portion, and sealing member that can pivot between open and closed orientations, with a vent system and detent mechanism to ensure secure sealing and easy drinking, allowing for the lid to be selectively moved between sealed and unsealed positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a lid is designed to seal a beverage container, then spill prevention is improved, but ease of operation deteriorates due to difficulty in opening and closing
Solution Approach 1:
The sealing member is designed to pivot between sealed and open orientations, transitioning from a static seal to a dynamic system that allows easy switching between closed and open states through rotational movement around a pivot axis
Solution Approach 2:
A detent mechanism acts as an intermediary between the sealing member and main body, providing tactile feedback and ensuring positive engagement in both sealed and open positions, making operation intuitive and reliable
2Ease of operation
If a lid is designed to allow drinking through it, then ease of operation is improved, but spill prevention deteriorates due to inadequate sealing
Solution Approach 1:
The spout portion is designed to pivot relative to the main body, allowing the opening to be positioned either toward the user for drinking or away from the user for spill prevention, enabling dynamic adaptation between drinking and storage modes
Solution Approach 2:
The spout portion serves multiple functions: it provides a drinking opening when positioned toward the user, and acts as a spill prevention barrier when positioned away from the user, eliminating the need for separate components
3Quantity of substance
If a lid includes a vent system, then airflow is improved, but sealing effectiveness deteriorates due to potential leakage paths
Solution Approach 1:
The vent system is extracted as a separate functional element within the main body, with vents positioned away from the spout opening, isolating the airflow function from the sealing function to prevent interference between the two systems
Solution Approach 2:
Different regions of the lid are assigned different functions: the vent areas provide airflow paths while the spout and sealing member regions maintain sealing integrity, with each area optimized for its specific purpose without compromising the other
Data Source
AI summary
A reusable lid includes a main body, a spout portion, and a sealing member. The main body has a first surface. The spout portion extends outwardly from the first surface of the main body and has a second surface that is substantially parallel to the first surface and has an opening formed therein. The sealing member has a base portion, a cap portion with a third surface, and an intermediate portion disposed between the base portion and the cap portion. The sealing member is movable relative to the main body and the spout portion between a first orientation and a second orientation. In the first orientation, the cap portion engages the second surface to seal the opening and the third surface is substantially parallel to the first and second surfaces, and in the second orientation, the opening is unobstructed by the cap portion and the third surface is non-parallel to the first and second surfaces.