Snap-Fit Packaging Base and Bell Attachment
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Solution Overview
Problem
Conventional packaging structures require glue for securing the bell to the base, increasing production and usage costs, and complicating recycling due to bonded materials, while also lacking reliable attachment mechanisms to prevent premature separation.
Innovation Solution
A packaging design utilizing purely mechanical latching means without glue, featuring recesses and projecting peripheral edges to prevent involuntary detachment, and snap slots and protrusions for secure attachment without increasing material quantity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If glue is used to secure the bell to the base, then the attachment reliability is improved, but the production cost increases and recycling becomes difficult
Solution Approach 1:
The patent replaces the chemical bonding system (glue) with a mechanical fastening system consisting of snap-fit protrusions and recesses. The protrusions on the bell engage with corresponding recesses on the base flaps, creating a secure mechanical attachment that eliminates the need for adhesives. This substitution resolves the contradiction by providing reliable attachment through mechanical means while avoiding the costs and recycling issues associated with glue.
2Reliability
If glue is used to secure the bell to the base, then the attachment reliability is improved, but the recycling difficulty increases
Solution Approach 1:
The patent designs the packaging as separable components connected by reversible snap-fit mechanisms. The bell can be detached from the base by simply pulling apart the protrusion-recess connections, allowing the different materials (cardboard base and plastic bell) to be separated for recycling. This segmentation principle resolves the contradiction by enabling reliable yet reversible attachment, facilitating material separation for recycling purposes.
3Reliability
If the bell is securely attached to the base, then the handling safety is improved, but the ease of opening decreases
Solution Approach 1:
The patent creates a dynamic attachment system where the snap-fit connections provide strong holding force during normal handling but can be easily released when intentional opening force is applied. The protrusions engage deeply with the recesses to prevent accidental separation, yet the design allows for simple manual detachment by pulling the bell away from the base. This dynamic characteristic resolves the contradiction between secure attachment and easy opening.
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
This solution reduces production and usage costs, facilitates recycling, and ensures reliable attachment of the bell to the base, allowing safe handling and easy opening of the packaging.
Implementation Method 1
the secondary base flaps are detachably secured to said outer surface by means of snap-fit mechanisms
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
Packaging (1) comprising a base (2) and a bell (3), the base (2) having a base bottom (4), two first flaps (5, 6) and two second flaps (7, 8), the bell (3) having a bell bottom (13) and a four-sided peripheral wall (14-17), in which: - said two first flaps (5, 6) of the base are engaged inside the bell along the inner face of two corresponding opposite first sides (14, 15) of the bell, - said two second flaps (7, 8) of the base are arranged against the outer surface of the bell (3), and are secured to said outer surface by snap-fit means (19, 21), - the bell (3) includes protective means (16a) which at least partially conceal the edges of said two second flaps (7, 8) of the base.