Foldable Grappling Hook with Sealed Junction Box
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Solution Overview
Problem
Folding grappling hooks pose safety and storage challenges due to exposed sharp edges, vulnerability to environmental elements, and difficulty in quick deployment and secure stowage, especially in recreational, rescue, and military operations.
Innovation Solution
A circumferentially foldable multiple pronged hook that collapses into a compact position with sealed interior mechanisms, allowing for safe storage and quick deployment, featuring a junction box to protect components from external elements and minimal moving parts for efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a folding grappling hook is used to enable compact storage and quick deployment, then portability and deployability are improved, but exposed sharp edges create safety hazards and the mechanisms remain vulnerable to environmental elements
Solution Approach 1:
The patent employs a protective sheath or cover that encloses the grappling hook mechanisms when not in use. This flexible protective layer shields the sharp edges and internal mechanisms from environmental contamination while allowing quick deployment when needed.
Solution Approach 2:
The grappling hook components are nested within a protective housing or junction box structure. The hooks can be retracted or folded into the housing, with the mechanisms contained within an enclosed space that protects them from dirt, mud, sand, and other environmental elements.
2Volume of moving object
If a folding grappling hook is designed to collapse into a compact position, then storage convenience is improved, but sharp edges remain exposed creating safety risks
Solution Approach 1:
A protective cover or sheath encloses the folded grappling hook, containing the sharp edges within a safe package. This protective layer can be integrated into the compact storage configuration while maintaining the small volume necessary for portability.
Solution Approach 2:
The protective housing and grappling hook mechanisms are merged into a single integrated unit. The housing serves dual purposes: providing structural support for the folding mechanism while simultaneously containing and protecting the sharp edges during storage and transport.
3Productivity
If the grappling hook mechanisms are exposed for easy access and operation, then operational efficiency is improved, but the mechanisms become vulnerable to contamination from dirt, mud, and sand
Solution Approach 1:
A protective membrane or flexible barrier covers the internal mechanisms, allowing operational access while preventing contamination from environmental elements such as dirt, mud, and sand.
Solution Approach 2:
The patent introduces an intermediary protective structure (housing, seal, or barrier) between the grappling hook mechanisms and the external environment. This intermediary layer allows the mechanisms to remain protected while still enabling functional operation when needed.
Data Source
AI summary
A multiple pronged hook assembly has hook shafts that can be rotated and locked into desired positions individually, independent from the other hook shafts and is sealed free from outside elements, dirt, or liquid. A junction body securely encloses shafts of planetary hooks with a cylindrical opening to rotatably accommodate a cylindrical shaft of at least one circumferentially rotatable hook. A plunger rod has a rigging aperture at a top. A bottom end of the plunger is slidably disposed within a center of the junction body between the shafts of the plurality of planetary hooks to rotatably lock the at least one circumferentially rotatable hook when the plunger rod is in an up position and rotatably unlock the at least one circumferentially rotatable hook when the plunger rod is in a down position.