Container Lid Locking Flap for Spill-Resistant Dispensing
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Solution Overview
Problem
Existing lids for containers do not effectively prevent spilling and splashing of liquids while allowing easy access for dispensing, and they lack efficient locking mechanisms to maintain the dispenser in an open configuration.
Innovation Solution
A lid design featuring a dispenser flap with a projection that engages a locking recess spaced away from the centerline, allowing the dispenser to be maintained in an open position, and a snap-fit engagement with the container rim to secure the lid, enhancing user access and preventing spilling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a locking feature is added to maintain the dispenser in an open configuration, then dispensing access is improved, but device complexity increases
Solution Approach 1:
The locking feature is designed to automatically engage with the dispenser flap when opened, maintaining it in the open position without requiring additional manual intervention. The projection on the dispenser flap automatically interacts with the locking recess in the central wall, creating a self-locking mechanism that eliminates the need for separate locking actions or complex control systems.
Solution Approach 2:
The locking feature is integrated directly into the existing lid structure by incorporating the locking recess into the central wall and the projection onto the dispenser flap. This merging of the locking function into the existing components avoids adding separate locking mechanisms and minimizes structural complexity while achieving the desired dispensing access.
2Ease of operation
If the locking recess is spaced away from the centerline, then ease of operation is improved, but manufacturing precision requirements increase
Solution Approach 1:
The locking recess is deliberately positioned asymmetrically, spaced away from the centerline of the lid, to optimize the dispenser's operational characteristics. This asymmetric placement allows the dispenser flap to open more easily and maintain a stable open position, improving user interaction. The design accepts the resulting manufacturing precision requirements as a trade-off for achieving superior ease of operation.
Data Source
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AI summary
A lid for a container. The lid comprises a central wall and a dispenser comprising a dispenser flap hingedly connected to the central wall and moveable between a closed configuration and an open configuration at least partially exposing a dispenser opening in the central wall. The dispenser further can include a projection extending from the dispenser flap. The lid further comprises a locking feature for maintaining the dispenser in the open configuration. The locking feature can comprise a locking recess in the central wall for at least partially receiving the projection. The dispenser opening can be located on a centerline of the lid, and the locking recess can be spaced away from the centerline of the lid.