Swing-Open Package Lid Hinge Mechanism for Easy Access
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Solution Overview
Problem
Conventional swing-open type packages are inconvenient for handling and reorientation of the lid, as the lid must be turned upside down and aligned perfectly with the box body for closure, which complicates the opening and closing process.
Innovation Solution
A swing-open type package design featuring a movable rear wall portion connected by a hinge to the box body, a connection flap on the lid, and a support flap that allows the lid to swing and tilt, providing easy access and stable closure, with optional sound generation for proper alignment confirmation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the lid is made as a separate removable part, then the box body can be opened to access articles, but the lid becomes inconvenient to handle and requires perfect alignment for closure
Solution Approach 1:
The lid is merged with the box body through a hinge connection, forming a unified swing-open structure. This eliminates the need for separate handling and perfect alignment, as the lid remains attached to the box body throughout the opening and closing process, automatically maintaining proper orientation.
Solution Approach 2:
The hinge joint introduces dynamic movement capability, allowing the lid to swing between closed and open positions while remaining connected. This dynamic connection enables easy opening and closing operations without requiring the lid to be completely removed and repositioned.
2Productivity
If the lid is completely removed from the box body, then articles can be easily accessed, but the lid must be turned upside down and reoriented for closure
Solution Approach 1:
The hinge connection merges the lid and box body into a single operational unit, eliminating the time-consuming steps of removing, reorienting, and aligning the lid. The lid swings open for immediate article access and swings back for automatic realignment and closure.
Solution Approach 2:
The hinge pre-positions the lid in the correct orientation relative to the box body, so that when the lid is swung open and then closed, it automatically returns to the proper alignment without requiring user intervention for reorientation.
3Ease of operation
If a hinge connection is provided between the lid and box body, then the lid remains connected for easy handling, but the structure becomes more complex
Solution Approach 1:
The rear wall of the box body is segmented to include a movable rear wall portion that forms part of the hinge mechanism. This segmentation allows the hinge to be integrated into the box body structure itself, rather than adding a separate hinge component, thereby reducing overall structural complexity.
Solution Approach 2:
The movable rear wall portion serves multiple functions: it forms part of the box body structure, provides the hinge joint mechanism, and enables the swing-open functionality. This multi-functionality eliminates the need for separate hinge components, reducing structural complexity while maintaining ease of operation.
4Area of moving object
If the lid is made to swing open with a large opening angle, then access space is maximized, but the closure alignment becomes more difficult
Solution Approach 1:
The hinge connection provides dynamic movement that allows the lid to swing to various opening angles, maximizing access space when needed. The same dynamic connection ensures that when the lid is swung back, it naturally returns to the closed position with proper alignment, eliminating the alignment difficulty that would exist with rigid fixed-angle structures.
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
Facilitates easy handling and opening/closing of the package by maintaining lid connection to the box body, providing a large access space and clear closure indication through a clicking sound, enhancing user convenience.
Implementation Method 1
a movable rear wall portion formed by a part of the rear wall of the box body and joined to the bottom wall of the box body by a hinge
Implementation Method 2
a connection flap jointed to an upper edge of the movable rear wall portion by a fold line
Implementation Method 3
a support flap connecting the transverse wall and the inner surface of the upper wall of the lid, the support flap having hinges at the connecting potions with respect to the transverse wall and the inner surface of the upper wall of the lid, respectively
Data Source
Figure 1~2
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Figure 5~6
AI summary
A swing-open type package has a box body (10), a lid (12) to be put onto the box body (10) from above, and a swing device connecting the lid (12) and the box body (10), the swing device including a movable rear wall portion (36) formed by a part of a rear wall of the box body (10), and a support flap (44) connecting the lid (12) and a transverse wall (21) of the box body (10), and enables a swing motion of the lid (12) when a front wall of the lid (12) is raised from the boxy body (10) so that the swing motion causes the lid (12) to tilt and open wide.