Adhesive Securing Ring for Impact-Resistant Container Lids
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Solution Overview
Problem
Existing container designs fail to securely attach the securing ring to the lid, leading to potential disengagement during impact, which can cause leaks during drop tests, especially when transporting hazardous liquids.
Innovation Solution
The securing ring is attached to the lid using an adhesive, with a third securing portion engaging the inner surface of the outer lid wall portion, enhancing the surface pressure and ensuring the ring remains in place during impacts by distributing force circumferentially.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the securing ring is attached to the lid by snap engagement or mechanical means, then the attachment is strong and reliable, but the securing ring may disengage during impact causing leaks
Solution Approach 1:
The patent replaces the mechanical snap engagement system with an adhesive bonding system. The adhesive layer bonds the securing ring to the lid, eliminating the mechanical interlocking mechanism that can disengage during impact. This substitution provides a more reliable attachment that remains intact under impact conditions, preventing leakage while maintaining structural integrity.
2Stability of the object's composition
If the securing ring is made rigid to maintain position during impact, then the positioning stability is improved, but the ring cannot accommodate deformation of the lid during impact
Solution Approach 1:
The patent changes the mechanical parameters of the securing ring by incorporating a flexible or elastomeric material instead of a rigid material. This parameter change allows the ring to deform elastically during impact, accommodating lid deformation while maintaining sufficient friction and normal force to prevent disengagement. The material properties are optimized to balance position stability with impact resistance.
3Reliability
If adhesive is used to attach the securing ring to the lid, then the attachment is reliable and prevents disengagement during impact, but the bonding strength may be insufficient under high impact forces
Solution Approach 1:
The patent employs a composite attachment system combining adhesive bonding with friction-based mechanical retention. The adhesive provides initial bonding and distributes loads, while the flexible securing ring generates friction forces and normal pressures against the lid surface. This composite approach ensures that neither the adhesive alone nor the friction alone fails under impact, but their combination provides sufficient total bonding strength.
4Ease of operation
If the securing ring engages the outer surface of the container body, then the lid position is secured, but the ring may not remain attached to the lid during impact
Solution Approach 1:
The patent inverts the traditional securing sequence: instead of the securing ring engaging the container body to secure the lid, the securing ring is first firmly attached to the lid (via adhesive), and this secured lid-ring assembly then engages the container body. This inversion ensures the ring cannot detach from the lid during impact, as the adhesive bond prevents disengagement while the lid engagement provides the securing function.
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 configuration significantly improves the ring's ability to maintain its position and function during impacts, preventing leaks and ensuring the lid remains securely closed, even under oblique drops from significant heights.
Implementation Method 1
the securing ring is attached to the lid by an adhesive
Implementation Method 2
the supporting portion having an outer portion comprising a third securing portion, and said third securing portion being arranged for engagement with an inner surface of the outer lid wall portion, at least spotwise distributed, along the inner circumference of said inner surface
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
A container comprises a container body (3) and a lid (5), which has an outer lid wall portion (29) surrounding a central portion. The outer lid wall portion (29) provides a lid-side sealing surface (39) and a lid-side securing portion (43), which engage respectively with body-side sealing surface and securing portion, when the lid (5) is applied to the container body (3) to close the container. The container further comprises a securing ring (55) inserted within the outer lid wall portion (29). The securing ring (55) comprises a support portion (57) and possibly an upper flange portion (59) extending from the support portion (57) at an acute angle (a) of less than 80° from vertical. The securing ring (55) is attached to the lid (5) by an adhesive (64).