Bung Plug Closure Anti-Manipulation Frame
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Solution Overview
Problem
Existing bung plug closures lack sufficient security against manipulation, as the annular locking protrusion can be easily deformed and removed using a manipulation tool, compromising the seal cap's integrity without visible external manipulation.
Innovation Solution
The bung plug closure incorporates an annular frame above the gaps between tool engagement projections, which receives and supports the annular locking protrusion, creating a deformation obstacle that impedes manipulation attempts by providing additional structural support and making it difficult to access and deform the locking protrusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If counter-locking elements are provided on the inner surface of tool engagement projections, then the annular locking protrusion can be locked to the bung plug, but the locking protrusion remains accessible from the top through gaps and can be deformed by manipulation tools
Solution Approach 1:
The patent introduces an annular frame structure that extends radially inward from the inner wall of the plug depression, creating a new spatial dimension of protection. The frame's radial extension blocks access to the locking protrusion from the top, while the locking protrusion maintains its axial locking function. This dimensional approach transforms the vulnerability of top-accessible locking into a protected configuration where the frame acts as a physical barrier in the radial direction.
2Ease of operation
If the annular locking protrusion is made accessible from the top for tool engagement, then the seal cap can be removed, but the security against unauthorized manipulation is compromised
Solution Approach 1:
The annular frame serves as an intermediary element between the manipulation tool and the annular locking protrusion. When a tool attempts to deform the locking protrusion from the top, the frame acts as a mediator that blocks direct access. The frame's radial extension creates a physical barrier that prevents the tool from applying sufficient force to deform the locking protrusion, while still allowing legitimate removal through proper tool engagement with the seal cap.
3Adaptability or versatility
If gaps are formed between tool engagement projections for tool access, then manipulation is possible, but the locking protrusion becomes vulnerable to deformation
Solution Approach 1:
The annular frame is segmented into multiple radial sections corresponding to the gaps between tool engagement projections. Each segment of the frame provides localized protection in its respective gap area, while maintaining the overall annular structure. This segmentation allows the frame to effectively block tool access in each gap region while preserving the structural integrity and locking function of the annular locking protrusion.
Data Source
AI summary
A bung plug closure (30) for fastening a plug depression formed in a bung plug (31), said plug depression comprising a receiving area for receiving a resilient engagement body realized on the seal cap (11), and said bung plug (31) comprising tool engagement projections (33), which are arranged on an inner wall of the plug depression and which are distanced to each other via gaps (34) and which delimit the receiving space using inner surfaces (37), counter-locking elements (32) being provided in the plug depression, said counter-locking elements (32) being arranged in the area of the gaps (34) above an annular frame (35, 61), which is formed outside of the gaps (34) via lower sections (36) of the inner surfaces (37).