Container Cover With Segmented Hinge And Locking Recess

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Solution Overview

Problem

Existing container covers do not provide an easy and safe locking mechanism in the open position and secure opening mechanism in the locked position.

Innovation Solution

A container cover design featuring a central web with a first web part and a second web part connected by a hinge, where the first web part has a rib on its edge and the second web part has a corresponding recess, allowing the cover to pivot and lock securely in place.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a hinge connects the first and second web parts without additional locking features, then the cover structure remains simple, but the cover cannot provide secure locking in the open position or easy opening from locked position

Engineering Contradiction:

Improvelocking securityVSAvoidcover structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The cover is divided into a first web part and a second web part connected by a hinge, with each part having distinct functional features (protrusions on one part, recesses on the other). This segmentation allows independent optimization of each part's function while maintaining overall simplicity, resolving the contradiction between locking security and structural simplicity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The cover uses self-locking through the interaction of protrusions and recesses that automatically engage when the cover is opened to a specific angle, and self-unlocking through a simple pressing motion on the first web part. This eliminates the need for complex locking mechanisms or additional actuators, achieving secure locking without increasing device complexity.

Inventive Principle:

Principle #25Self-service

2Ease of operation

If the cover uses a simple hinge connection, then the cover structure is simple, but opening the cover from locked position is difficult and unsafe

Engineering Contradiction:

Improveopening operationVSAvoidlocking security

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The protrusions and recesses act as intermediary elements between the first and second web parts. These features mediate the interaction between the user's opening action and the hinge connection, providing both secure locking during normal operation and easy release when needed, thus resolving the contradiction between ease of opening and locking security.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The cover transitions between static locked positions (protrusions engaged in recesses) and dynamic opening/closing motion. The protrusion-recess mechanism provides dynamic locking that automatically engages and disengages based on the cover's position and user input, enabling both secure locking and easy opening operations.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentEP3219636B1Cover for a container

Publication Date: 2019.11.20 IPL

Figure 1
Figure 2A~2B
Figure 2C~2D

AI summary

A cover (10) for a container, comprising a central web (12) comprising a first web part (12a) and a second web part (12b); and a hinge (60) pivotally connecting the first and second web parts (12a, 12b); wherein a first one of the web parts (12a, 12b) comprises at least one rib (110) on an edge thereof facing the hinge (60), and a second one of the web parts (12a, 12b) comprises at least one corresponding recess (111) on an edge thereof facing the hinge (60).