Security Mounting Bracket With Varying Aperture Diameters
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Solution Overview
Problem
Existing mounting arrangements for accessory structures on primary structures, such as vehicles, lack effective theft prevention mechanisms, allowing unauthorized removal and theft of accessories like light bars and speakers.
Innovation Solution
A security mounting arrangement comprising a mounting bracket and a shielding bracket with strategically designed apertures and a tongue-and-groove mechanism, along with varying diameters in passageways to secure fastening members, preventing full disengagement of accessories by limiting tool access and enhancing structural strength with hardened steel materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional mounting bracket is used to attach accessory structures to primary structures, then the mounting process is simple and quick, but the accessory structure can be easily removed and stolen
Solution Approach 1:
The mounting bracket is divided into two separate components: a first bracket that attaches to the primary structure and a second bracket that attaches to the accessory structure. These brackets are connected through a fastening member that passes through aligned apertures, creating a segmented yet integrated assembly that prevents theft while maintaining installation simplicity
Solution Approach 2:
The fastening member is nested through apertures in both brackets, with the fastening member itself containing a head portion and a shaft portion that fit within the aperture structure. This nesting creates a layered security mechanism where the fastening member is partially concealed and protected within the bracket assembly
2Reliability
If a security mechanism is added to prevent theft, then theft prevention improves, but the mounting arrangement becomes more complex
Solution Approach 1:
The fastening member serves multiple functions simultaneously: it mechanically connects the two brackets together, provides a security mechanism through its head-and-shaft structure that resists removal, and allows for tool-based operation during installation and maintenance. This multi-functionality achieves theft prevention without adding separate complex security devices
Solution Approach 2:
The apertures are pre-configured in both brackets with specific dimensions and alignments before assembly. The first aperture in the first bracket and the second aperture in the second bracket are designed to align when brackets are positioned together, allowing the fastening member to be inserted through both apertures in a single preliminary action during installation
3Ease of operation
If the passageway has a larger diameter to allow tool access, then fastening members can be adjusted and removed, but tools can be used to fully disengage fastening members enabling theft
Solution Approach 1:
The passageway exhibits varying diameters at different locations along its length. The first portion has a larger diameter that accommodates the fastening member head and allows tool access for tightening and loosening operations. The second portion has a smaller diameter that acts as a mechanical stop, preventing the fastening member from being completely removed through the passageway, thus maintaining theft prevention while allowing necessary adjustments
Data Source
AI summary
A security mounting arrangement can include a mounting bracket and a shielding bracket. The mounting bracket can have a first aperture and a second aperture. The shielding bracket can be selectively engageable with the mounting bracket and have a third aperture aligned with the first aperture when the mounting bracket and the shielding bracket are engaged with one another. A passageway extending along an axis can be defined by the first aperture and the third aperture. The passageway can have a first portion with a first diameter, a second portion with a second diameter, and a third portion with a third diameter positioned between the first portion and the second portion along the axis. The third diameter can be greater than the first diameter and the second diameter.