Hinged-Lid Container Sliding Device Gap Elimination
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Solution Overview
Problem
Existing hinge-lid containers with sliding devices face issues such as gaps in closed positions, complex opening mechanisms, and production inefficiencies due to rigid connections or unsuitable blank designs for mass production.
Innovation Solution
A container design featuring a separate sliding device that can move longitudinally to open and close the lid portion without gaps, with a lid front wall and angled structures for enhanced closure and structural strength, allowing for easier production using standard machinery and potentially different materials for the box and sliding device blanks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the sliding device is rigidly connected to the lid portion, then the structure is stable, but the sliding device cannot move all the way up the pack in the closed position
Solution Approach 1:
The connection between the sliding device and lid portion is divided into two segments: a flexible connection portion that allows movement and a friction engagement portion that provides holding force. This segmentation enables the sliding device to move freely during operation while maintaining stable engagement when positioned, resolving the contradiction between ease of movement and structural stability.
2Ease of operation
If the sliding device is connected to the lid portion by a flexible connection, then the sliding device can move all the way up in the closed position, but the opening mechanism becomes complicated
Solution Approach 1:
The friction engagement feature is extracted as a separate element from the flexible connection, positioned at the interface between the sliding device and lid portion. This extraction allows the flexible connection to provide movement freedom while the friction engagement feature independently provides the necessary holding force, simplifying the overall mechanism compared to fully flexible connections.
3Ease of operation
If the sliding device is made as a separate element, then the sliding device can move all the way up to the upper end of the lid portion in the closed position, but gaps may show between the lid portion and the sliding device
Solution Approach 1:
The friction engagement feature is preliminarily positioned at the interface between the sliding device and lid portion before closure occurs. As the sliding device moves to the closed position, the friction engagement feature automatically engages with the lid front wall to eliminate gaps and ensure tight closure, preventing particle leakage without requiring additional adjustment mechanisms.
4Reliability
If the lid front wall is added to the lid portion, then the closure is improved and freshness is maintained, but the blank design becomes more complex for mass production
Solution Approach 1:
The lid portion is segmented into distinct functional elements: the lid front wall for closure, the hinge portion for movement, and the friction engagement feature for positioning. This segmentation allows each element to be optimized independently and facilitates standardization for mass production, as each component can be manufactured using conventional techniques and assembled together.
Data Source
AI summary
A container comprises a box portion, a lid portion and a separate sliding device. The separate sliding device embraces at least part of the box portion. Moving the separate sliding device longitudinally along the box portion in a first direction pivots the lid portion to open the container and moving the separate sliding device longitudinally along the box portion in a second, opposite direction pivots the lid portion to close the container. The lid portion comprises a lid front wall.