Cup Lid Locking and Delayed Release Mechanism
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Solution Overview
Problem
Conventional automatic release lids for thermally insulating vessels are difficult to open and close with one hand, especially when visual feedback is limited, and require a two-step process, making them cumbersome for single-handed operation, especially in situations like driving.
Innovation Solution
A cup lid with a lockable button and rocker latch system that allows for single-handed operation, featuring a slidable button for unlocking and a biasing element like a torsion spring for delayed opening, enabling partial and full opening with a single finger, facilitating steam release and preventing liquid splashing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional automatic release lid with sliding lock and latch release button is used, then the lid can be securely locked, but it requires two-step operation and cannot be opened with one hand
Solution Approach 1:
The patent combines the sliding lock and latch release button into a single integrated button structure. The button performs dual functions: sliding laterally to unlock and pressing axially to release the latch, eliminating the need for separate components and two-step operation.
Solution Approach 2:
The single button is designed to perform multiple functions: lateral sliding motion unlocks the locking mechanism, while axial pressing motion releases the latch. This multi-functional design allows the entire opening sequence to be completed with one hand.
2Speed
If the lid opening is abrupt and immediate, then the lid can be quickly opened, but steam is immediately released causing potential splashing
Solution Approach 1:
The patent introduces an intermediate state where the lid is partially opened before full opening. The button pressing action first creates a small gap for controlled steam release, then progressively opens the lid further, preventing sudden steam explosion and liquid splashing.
Solution Approach 2:
The delayed opening mechanism acts as a cushioning element by controlling the rate of lid opening. The button mechanism provides resistance and timing control, allowing steam to escape gradually through a narrow gap before the lid fully opens, cushioning the harmful effects of sudden pressure release.
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
Enables easy one-handed operation of the lid, allowing for controlled steam release and full opening, improving convenience and safety by preventing accidental opening or spillage, especially in situations where only one hand is available.
Implementation Method 1
a biasing element like a torsion spring for delayed opening
Data Source
AI summary
A cup lid with locking and delayed release includes a lid and a lid base coupled to the cup. The lid is hindgedly attached to the lid base, with a locking and release assembly with a selectively locking and unlocking button that is linked to a rocker latch defined by an inner locking hook and an outer locking hook. The lid includes a catch inner hook engageable to the inner locking hook on the rocker latch, and a catch outer look engageable to the outer locking hook on the rocker latch.