Night Vision Goggle Adapter Cam Adjustment Mechanism
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Solution Overview
Problem
Existing night vision goggle adapters often provide an inexact fit due to variations in helmet mounts and user facial features, leading to frustration and imprecise use, and may complicate fine adjustments and increase the height profile when stowed.
Innovation Solution
A night vision goggle adapter with a cam system and adjustable components, including a knob, yoke, and shaft, allowing for infinite adjustability and secure attachment, with features like a knurled knob, magnetic gravity switch, and counter bore for precise positioning and secure locking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an adapter is used to allow use of a particular helmet mount with a particular night vision goggle, then adaptability is improved, but device complexity increases and fine adjustments become more difficult
Solution Approach 1:
The adapter is divided into separate functional components: a mounting interface portion that attaches to the helmet mount, an adjustable positioning mechanism with cam and slot, and a goggle interface portion. This segmentation allows each component to be optimized independently while maintaining overall adaptability across different helmet and goggle configurations.
Solution Approach 2:
The adapter incorporates a universal mounting interface that can accommodate various helmet mount types through standardized attachment mechanisms. The cam-and-slot positioning system provides multi-directional adjustment capability, enabling the same adapter to work with different night vision goggle models and helmet configurations, thereby achieving multi-functionality.
2Adaptability or versatility
If an adapter is used to allow use of a particular helmet mount with a particular night vision goggle, then adaptability is improved, but ease of operation deteriorates due to difficulty in fine adjustments
Solution Approach 1:
The cam mechanism acts as an intermediary between the user's manual input and the goggle positioning system. By rotating the cam, the user can smoothly adjust the goggle position along the slot path, translating simple rotational motion into precise positional adjustments. This intermediary mechanism simplifies the adjustment operation while maintaining fine-tuning capability.
Solution Approach 2:
The adapter employs a dynamic positioning system where the cam can be rotated to change the engagement point along the slot, allowing continuous adjustment of the goggle position. This dynamic mechanism enables easy repositioning during use, improving ease of operation while maintaining adaptability to different user preferences and situations.
3Device complexity
If traditional attachment methods are used, then device complexity is reduced, but manufacturing precision deteriorates due to inexact fit
Solution Approach 1:
The adapter incorporates adjustable geometric parameters through the cam-and-slot mechanism, allowing the position of the night vision goggle to be varied along multiple axes. This parameter adjustment capability compensates for variations in manufacturing tolerances of different helmet mounts and goggle interfaces, achieving precise fit without requiring extremely tight manufacturing specifications for all components.
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
Enables secure, customizable, and adjustable attachment of night vision goggles to helmets, ensuring precise positioning and reduced height profile during stowage, improving usability and comfort.
Implementation Method 1
a spring operably placed between the knob and yoke
Implementation Method 2
a cam pivotally mounted to the second end of the shaft for movement between a released and clamped position
Implementation Method 3
A surface of the knob may be knurled or castellated
Data Source
AI summary
A night vision goggle adapter, the adapter includes a knob, a yoke, the yoke includes an attachment portion operably connected to a helmet mount, a spring operably placed between the knob and yoke, a shaft, the shaft includes a first end operably connected with the knob, and a second end, a head, the head receives a portion of the shaft and is attached to a night vision google, and a cam pivotally mounted to the second end of the shaft for movement between a release and clamped position to respectively disengage and engage the adapter to the head.